• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    In a safety closing device for gas pipelines with a against the force of a spring (3) displaceable valve closure member (1) which is pressed against a valve seat (6) in a tubular housing with a gas supply port and cooperates with a damping device for damping the closing movement, comprising the damping device Rotary means for rotating the valve closure member (1) about the longitudinal axis (11) of the valve closure member (1) during at least a portion (25) of the closing movement in the direction of the valve seat (6).
    公开号:AT516314A2
    申请号:T592/2015
    申请日:2015-09-10
    公开日:2016-04-15
    发明作者:
    申请人:Pipelife Austria Gmbh & Co Kg；
    IPC主号:
    专利说明:

    The invention relates to a safety device for closing gas pipes with a valve closing element displaceable against the force of a spring, which can be pressed against a valve seat in a tubular housing with a gas supply connection and cooperates with a damping device for damping the closing movement.
    Safety locking devices with a valve closing member displaceable against the force of a spring are, for example. from EP 1282797 and are arranged inGasrohrleitungen. In particular, these are pipelines for the transport of natural gas to consumers. In the normal operating condition, steady-state pressure conditions prevail within the safety-locking device, and the valve-closing member is in its initial position in which the valve is open. In the initial position, the forces acting on the valve closing member, namely the differential pressure of the gas acting in the closing direction of the valve and the spring force acting in the opening direction, are balanced so that the valve closing member remains stationary. The safety closure device is designed for a predetermined nominal flow up to which the valve remains open. For example, if gas pressure on the downstream side of the safety closing device drops due to a leak in the gas line, the valve closing member is pressed into the valve seat due to the pressure of the trailing gas and the gas flow is stopped. This avoids the hazards associated with leakage of large quantities of gas. conventional
    Safety shut-off devices are designed for a particular flow rate at which the valve closes.
    However, for example, when consumers turn on during normal operation, they may experience sudden, short-term (few tenths of a second) and large volume flows within the containment. In these cases, there is a risk that the valve closing member is pressed into the valve seat and the gas flow is interrupted, even though there is no leak or other malfunction.
    The quotient closing flow / nominal flow rate is generally referred to as the closing factor. Conventional safety locking devices require relatively high shut-off factors (up to 1.8) for safe, trouble-free operation to prevent the above described peak flow rates from causing inadvertent closing of the valve.
    It is therefore to be prevented by constructive measures that in the short time of the peak volume flows no closure of the safety locking device takes place. This has the consequence that in the design of the closing flow, the peak volume flows do not have to be calculated and thus lower closing flows in relation to the nominal flow are possible. This is in particular a safety-related advantage, since the safety-locking device closes as intended when the defined closing flow rate is reached with considerably smaller damage to the gas supply line.
    In order to reduce or avoid this risk of inadvertently and accidentally closing the safety-locking device in the event of a short-term occurrence of peak flow rates, constructive measures can be taken to delay the closing. This has the effect of causing the valve to close due to an operational short-term gas flow increase, but due to the desired delay in the process of closure, the valve is not yet closed when steady state pressure conditions are restored. As a result, the gas flow is not cut off during an operational short-term increase in gas flow rate, but continues to run normally.
    If, however, a leak or other undesirable disturbance occurs, the closing of the
    Although the safety closure device is delayed slightly, but due to the long-term, abnormal pressure conditions, the valve member is still pressed into the valve seat and the gas flow is interrupted. Due to the delay, only small amounts of gas are additionally passed through the safety-locking device as compared to a safety-closing device without a retarding function. These quantities are so small that they can be disregarded.
    From the prior art, for example DE 10127435 B4, it is known that such a deceleration function can be achieved by a gas pressure shock absorber. Here, the valve closing member is stored in a space filled with gas. This space is only a narrow with the interior of the security closing device
    Line connected. Now, when a closing of the valve closing member is triggered, the gas must first escape from the room. Due to the narrow line, this process takes longer, causing a delay in closing.
    However, this solution has several disadvantages. Thus, for example, there is a high space requirement for the arrangement of such a damping space, which has a negative effect on the flow characteristic of the security closing device. Further, the adjustment of the closing characteristic is complicated and can not be easily adjusted.
    It is therefore an object of the invention to provide an alternative constructive possibility which can cause a delay effect during the closing operation in a safety locking device. In particular, it is an object of the invention to reduce or eliminate the above-mentioned disadvantages of the prior art. In particular, the invention aims to optimize the delay function for a reduction of the closing factor.
    To achieve this object, in a safety locking device of the kind cited initially, the invention provides that the damping device comprises turning means for turning the valve closing member about the longitudinal axis of the valve closing member during at least a portion of the closing movement in the direction of the valve seat. The rotating means cause the
    Valve closure member is rotated during closing by a certain angle. The size of the twist angle is in
    Depending on the required damping effect, it is generally the case that a larger twist angle causes a greater damping effect. This rotation requires a force to spin the mass of the valve closure member, thereby delaying the translational movement of the valve closure member.
    It is preferably provided that the rotation means are designed to rotate the valve closure member only in a first portion of the closing movement. Even such a short-term rotational movement can lead to the desired delay.
    It is preferably provided that the rotation means are designed to guide the valve closure member axially towards the valve seat during a first portion of the closing movement, to rotate in a direction directly adjacent to the first portion of the closing movement in the direction of the valve seat about the longitudinal axis of the valve closure member and in a directly to the second Subsection subsequent third portion of the closing movement axially in the direction of the valve seat to lead. Thus, it is preferably provided that the closing movement comprises at least three subsections, wherein in the first and third subsection the closing movement is essentially purely axial, while in the second subsection, which is arranged between the first and the third subsection, a twisting of the closing body takes place. This design has proven particularly suitable and efficient, especially for gas lines with low operating pressures of less than 25 mbar.
    According to a preferred embodiment it is provided that the rotating means are adapted to use a closing force acting on the valve closing member for the rotation. As a result, the rotation can be achieved particularly simply and effectively. .......... In a particularly preferred embodiment, it is ensured that the rotating means are positively driven
    Such positive guidance, preferably between two divisional elements, is a particularly simple, precise and at the same time effective measure to achieve a rotation of the valve closure member in accordance with the invention.
    Particularly simple and effective is a preferred embodiment, which provides that the positive guide comprises a helical groove and a cooperating pin. In this case, only two interacting elements are provided, which together effect the positive guidance of the valve closing member. The helix of the groove can in this case have a constant pitch. Alternatively, the helix may have an increasing or decreasing pitch as the stroke increases, whereby the damping characteristic may be affected according to the particular needs. Furthermore, the groove can be formed only partially helically and partially axially extending.
    In contrast to a twist, for example, in a thread, the damping of the closing operation in a groove-bolt system during the second subsection is achieved almost exclusively by the force required to rotationally accelerate the mass of the valve closing member and not by friction in the thread. ..... In particular ..... for gas lines with low operating pressure ________________ it has been found that it is particularly effective that the groove in a first and a third section each substantially parallel to the longitudinal axis of the valve closing member and in a second section obliquely to the longitudinal axis the valve closing member, preferably at an angle of 15-45 °, more preferably at an angle of 25 ° -35 °.
    It is thereby achieved that the closing movement in the initial phase can start even at low pressure differences. A rotation starting immediately at the beginning of the closing movement is not possible at low pressure ratios because the closing movement would be prevented from being delayed greatly. Therefore, an initial axial acceleration phase is needed. Subsequently, the movement of the valve closing member is damped. Before the valve seat is reached, the rotation is stopped again. This is necessary because even with slight contact of the valve seat with a sealing element arranged on the valve closing element, the rotation due to the friction which occurs is no longer possible and the safety locking device would no longer be completely closed. By providing a third section in which the valve closure member is guided exclusively in the axial direction, this problem is avoided.
    Furthermore, it is preferably provided that the particular helical groove or the cooperating bolt is arranged stationary and the other part is rigidly connected to the valve closure member. Thus, one of these elements, the bolt or the groove, is fixedly mounted and the other part is connected to the valve-closing member so that relative movement between the bolt and the groove results in relative movement between the valve-closing member and the safety-locking device. When the valve closing member is now guided in the direction of the valve seat, the guidance of the bolt in the helical groove causes a simultaneous rotation coupled with the translatory closing movement.
    A further preferred embodiment for shortening the safety closing device and achieving flow-related advantages provides that the spring is arranged to cooperate with a bearing arranged in the tubular housing, wherein the bearing is arranged substantially in the center of the cavity formed by the tubular housing, and the bearing is preferably connected to the tubular housing over at least two webs. In particular, the struts can be designed as rectifier elements. Such rectifier elements cause a uniform, untwisted flow through this area of the safety locking device. Depending on the inner diameter of the safety locking device, preferably three or more rectifying elements may be provided.
    Alternatively, the spring may be disposed on the inner wall of the tubular housing. With this arrangement, it is possible for the gas to flow in at least a portion of the safety-closing device in a central region of the tubular housing. At the same time, the inner wall can be used as a lateral boundary of the spring. __ _ _ _________ _ _ _ __ _ __
    Uir. to provide an additionally improved flow path in the center of the safety locking device, it is preferably provided that the spring is arranged to cooperate with a preferably sleeve-shaped guide element, which is connected via at least two webs to the valve closing member. These webs can also be embodied as rectifier elements and, in particular, three or more webs can be provided.
    Furthermore, it is preferable that the spring is a compression spring. This allows a particularly compact design of the spring and thus of the safety locking device.
    Alternatively, the spring may also be a tension spring.
    Preferably, the spring is designed as a helical spring.
    Such springs provide a high, reproducible spring force at a low weight.
    It is preferably provided that the valve closing member is at least partially disposed within the spring.
    This embodiment shortens the required length of the safety locking device.
    It is particularly preferred that the positive guide comprises a helical groove, which in the
    Valve closure member is arranged in the bearing, in the guide element or in a tubular housing.
    Furthermore, it is particularly preferred that the positive guide comprises a bolt which is rigidly connected to the tubular housing, with the valve closure member, with the bearing or the guide element and engages in a ...... helical groove ......... .................................................. ...........
    The invention further relates to the use of a safety closing device according to the invention in a gas line with an operating pressure of 15 mbar to 25 mbar.
    The invention will be explained in more detail below with reference to an embodiment shown in the drawing. 1 is a longitudinal sectional view of a safety locking device according to a first embodiment; FIG Fig. 6 is a longitudinal section of a security locking device according to the invention according to a sixth embodiment; and Fig. 7 is a schematic representation of a preferred embodiment of the rotating means.
    Fig. 1 shows a safety locking device according to the invention according to a first embodiment during normal operation.
    This comprises a relative to the axis 11rotation symmetrical valve closure member 1, which is arranged on a shaft 11 extending in the shaft 11. The shaft 13 carries at its opposite end portion of the valve closing member a rigidly mounted cap 23 and is arranged in a cylindrical cavity of a bearing 2 against the force of the spring 3 in the direction of the axis 11 slidably. In this embodiment, the spring 3 is a compression spring and cooperates on the one hand with the bearing 2 and on the other hand with the valve closing member 1. The spring 3 is in this case received in an annular space, which is formed inside of a reduced diameter portion of the shaft 13 and externally by three about the axis 11 uniformly distributed Webs 4 is limited. The spring 3 is in the annulus between a through the
    Clamp formed diameter reduction on the shaft 13 and an end stop of the bearing 2 clamped. The bearing 2 is held by means of three webs 4 acting as rectifying elements in a tubular housing 5 which can be inserted into a pipe 22 serving to supply gas. The direction of the gas flow is designated 10. The valve closing member 1 is thus arranged on the side of the gas supply of the safety closing device. The valve closing member 1 is formed to form a tight seal with the valve seat 6 in the closed state. Furthermore, the valve closure member 1 comprises an elastomeric ring 7 which assists in the sealing of this barrier. The elastomeric ring 7 is arranged in an annular groove.
    If there is a gas flow in the direction of the arrow 10 in the tube 22, the gas flows around the valve closure member 1 and flows through the annular gap between the valve
    Valve closure member 1 and the valve seat 6. Since the annular gap is a cross-sectional constriction, in the flow direction immediately downstream of the valve closure member 1, a depression occurs, which exerts a closing force on the valve closure member 1 due to the pressure difference. The safety closing device is designed in such a way that the flow cross section increases in the region adjoining the valve seat in the direction of flow ................ ................, so that a ...... .Diffusor ____________________, which serves to reduce the pressure loss.
    In the normal operating position shown in Fig. 1, the spring 3 is biased and holds the shaft 13 and the valve closing member 1 in the open position defined by the cap 23. The bias of the spring 3 is selected so as to keep the valve-closing member 1 open against the closing force caused by the differential pressure as long as the gas flow does not exceed the predetermined nominal flow. When the nominal flow is exceeded, in particular when the closing flow is reached, for which the
    Safety locking device is designed, the closing force exceeds the holding force of the spring 3 and the valve closing member 1 is pressed against the valve seat 6.
    In order to avoid that an increased closing force due to short-term flow maxima (e.g., when energizing consumers) results in closure of the valve, the safety locking device is provided with damping means which retards the onset of closing movement of the valve closure member 1. For this purpose, a positive guide for the valve closure member is provided so that it during the
    Closing path is forced to a rotational movement about the axis 11. For this purpose, rotating means in the form of a stationary bolt 8 connected to the tubular housing 5 and cooperating with a helical groove 9 formed in the shaft 13 of the valve closing member are provided. The helical groove 9 is formed so as to be wound around the longitudinal axis 11... It can be provided ........ that the groove is helically formed only in a section. During the closing operation, the valve closing member 1 is moved in the direction of the arrow 10. Through the cooperation of the bolt 8 and the groove 9, the valve closing member 1 is rotated about the longitudinal axis 11 of the valve closing member 1 during the closing movement by a forcing guide in addition to the translational movement in the direction of the arrow 10. This rotation causes a delay in the closing movement, so that with only a short-term high withdrawal volume, the valve closure member 1 does not close before a steady flow resumes.
    In Fig. 2, a security locking device according to the invention is shown according to a second embodiment, wherein like reference numerals designate like parts in Fig. 1. The structure differs from the device shown in Fig. 1 only by the arrangement of the bolt 8 and the groove 9. In this embodiment, the bolt 8 is rigidly connected to the shaft 13 of the valve closing member 1 and the groove 9 is arranged on the inner periphery of the bearing 2, so that the valve closing member 1 while at least one
    Part of the closing movement relative to the bearing. 2 is turned.
    Fig. 3 shows a security locking device according to the invention according to a third embodiment, wherein like reference numerals designate like parts. The structure differs from ________ in ....... 1 device mainly by the
    Arrangement of the bolt 8 and the groove 9. In this embodiment, the bolt 8 is rigidly connected to the tubular housing 5 and the groove 9 is disposed in the spring protection sleeve 12 of the valve closing member 1 to force the rotational movement of the valve closing member 1 during the closing operation. The spring protection sleeve 12 is provided to shield the spring 3 from the gas flowing therethrough and forms together with the shaft 13 an annular cavity in which the spring 3 is received. The spring protection sleeve 12 is in this case formed integrally with the valve closing member 1. Furthermore, the webs 4 are formed with a recess 24 so as to allow a displacement of the spring protection sleeve 12 in the direction of the arrow 10.
    Fig. 4 shows a safety locking device according to the invention according to a fourth embodiment, wherein like reference numerals designate like parts. The structure differs from the device shown in Fig. 3 by the arrangement of the bolt 8 and the groove 9. In this embodiment, the bolt 8 is rigidly connected to the tubular housing 5 and the bearing 2 and the groove 9 is arranged in the shaft 13 of the valve closing member 1.
    Fig. 5 shows a safety locking device according to a fifth embodiment of the present invention, wherein like reference numerals designate like parts. In contrast to the embodiments according to FIGS. 1 to 4, in this embodiment all components necessary for closing the valve upstream of the valve seat 6 are __ange.Qrdn.et ....... The .. safety locking device comprises a_____
    Valve closure member 1 which is releasably connected by means of a screw 14 with a bearing 15. The bearing 15 is connected via rectifier elements 4 to a guide element 16. The guide member 16 cooperates via a guide stop 17 with a helical compression spring 18. The movement space of the compression spring 18 is limited on the opposite side of the guide stop 17 by a pipe stop 19, so that the compression spring 18 is always in operation between the guide stop 17 and the pipe stop 19. The pipe stop 19 is disposed on the inner wall of the tubular housing 5, as well as the compression spring 18 is arranged on this inner wall. The valve closure member 1 is formed to form a tight barrier with the valve seat 6.
    Furthermore, the valve closure member 1 comprises an elastomeric ring 7 which assists the tightness of this barrier. Then, a diffuser 20 is disposed on the valve seat 6.
    The bolt 8 is fixedly connected to the tubular housing 5 in this embodiment and the groove 9 is arranged in the guide element 16. When the valve closing member 1 moves along the arrow 10, the guiding member 16 and thus also the valve closing member 1 rigidly connected to the guiding member 16 are simultaneously rotated, thereby delaying the closing operation.
    In Fig. 6 there is shown a security locking device according to a sixth embodiment, wherein like reference numerals designate like parts. The valve closure member 1 forms a unit with the guide element 16, wherein the _____
    Gas flow is provided by means of openings 21.
    In this embodiment, similar to the embodiment of FIG. 5, the bolt 8 is rigidly connected to the tubular housing 5 and the helical groove 9 is disposed in the guide member 16.
    In Fig. 7, a preferred embodiment of the rotating means is schematically illustrated. In this case, a groove 9 acting in a first section 25 and in a third section 27 parallel to the axis 11 of the
    Valve closure member and in a second portion 26 is oblique to the axis 11 of the valve closure member 1, with a bolt 8 together. The arrow 10 represents the direction of movement of the valve closing member 1. In this illustration, the valve closing member 1 is open and the bolt 8 is disposed on the valve closing member 1. Now, when the valve closing member 1 is moved in the direction of the arrow 10, the valve closing member 1 is axially moved in the first section 25, axially moved in the second section 26 and simultaneously rotated about the axis 11 and axially moved in the third section 27. The angle 28 between the second section 26 and the axis 11 is preferably between 15-45 °, more preferably between 25-35 °
    权利要求:
    Claims (16)
    [1]
    Claims 1. A gas pipe safety closure device having a valve closing member displaceable against the force of a spring and being compressible against a valve seat in a tubular housing having a gas supply port and cooperating with damping means to dampen the closing movement, characterized in that the damping device comprises turning means to move the valve closure member (1) during at least a portion of the closing movement in the direction of the valve seat (6) about the longitudinal axis of the valve closing member (1) to rotate.
    [2]
    A safety closing device according to claim 1, characterized in that the rotation means are adapted to rotate the valve closure member (1) only in a first portion of the closing movement.
    [3]
    A safety closing device according to claim 1, characterized in that the rotation means are arranged to guide the valve closing member (1) axially towards the valve seat (6) during a first part (25) of the closing movement, in a second part directly following the first part (25) ( 26) of the closing movement in the direction of the valve seat (6) about the longitudinal axis of the valve closing member (1) to rotate and axially in the direction of the valve seat (6) in a third portion (27) of the closing movement directly adjacent to the second portion (26).
    [4]
    A safety closing device according to claim 1, 2 or 3, characterized in that the rotation means are adapted to utilize a closing force acting on the valve closure member (1) for the rotation.
    [5]
    A safety closure device according to any one of claims 1 to 4, characterized in that the rotation means comprise a biasing member of the valve closure member (1) which effects combined closing and turning movement of the valve closure member (1) during at least a portion of the closing movement.
    [6]
    Safety locking device according to claim 5, characterized in that the positive guide comprises a helical groove (9) and a pin (8) cooperating with the latter.
    [7]
    A safety closing device according to claim 4, characterized in that the positive guide comprises a groove and a cooperating bolt, the groove in each of a first and a third section extending substantially parallel to the longitudinal axis of the valve closing member and in a second section obliquely to the longitudinal axis of the valve closure member, preferably at an angle from 15-45 °, more preferably at an angle of 25-35 °.
    [8]
    Safety locking device according to claim 6 or 7, characterized in that the in particular helical groove (9) or the cooperating pin (8) is fixed in position and in each case the other part is rigidly connected to the valve closing member (1).
    [9]
    Safety locking device according to any one of claims 1 to 8, characterized in that the spring (3) is arranged to cooperate with a bearing (2) arranged in the tubular housing (5), the bearing (2) being located substantially in the center of the bearing is arranged through the tubular housing (5) formed cavity, and the bearing (2) is preferably connected to the tubular housing (5) via at least two webs (4).
    [10]
    Safety locking device according to any one of Claims 1 to 8, characterized in that the spring (3) is arranged on the inner wall of the tubular housing (5).
    [11]
    11. Safety locking device according to claim 10, characterized in that the spring (3) is arranged to cooperate with a preferably sleeve-shaped guide element (16) which is connected via at least two webs (4) with the valve closure member (1).
    [12]
    A safety locking device according to any one of claims 1 to 11, characterized in that the spring (3) is a compression spring.
    [13]
    A safety locking device according to any one of claims 1 to 12, characterized in that the valve closure member (1) is at least partially disposed within the spring (3).
    [14]
    Safety locking device according to any one of claims 1 to 13, characterized in that the positive guide comprises a helical groove (9) arranged in the valve closure member (1), the bearing (2) or the tubular housing (5).
    [15]
    Safety locking device according to one of claims 1 to 14, characterized in that the positive guide comprises a bolt (8) rigidly connected to the tubular housing (5), to the valve closure member (1) or to the bearing (2) and into one helical groove (9) engages.
    [16]
    16. Use of a safety locking device according to one of claims 1 to 15 in a gas line with a working pressure of 15 mbar to 25 mbar.
    类似技术:
    公开号 | 公开日 | 专利标题
    EP0678178B1|1996-12-11|Safety shut-off for gas lines
    DE2103948A1|1972-09-14|Automatic valve
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    EP2118541B1|2012-08-01|Gas flow monitor
    EP3108168B1|2017-11-08|Safety valve
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    EP2252817B1|2012-09-05|Gas flow monitor
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    DE2343645A1|1975-03-27|Self closing valve - has adjustable gap between plunger and conical seat for leak protection
    DE3333234C2|1985-08-01|Hose rupture protection with leakage gas checking device
    DE10213865A1|2002-10-10|Explosion-protection valve has housing containing movable closing body which is held open but moved into closing position on exceeding closing force when detent catch device is released
    DE102011010046B3|2012-04-05|Excess flow valve
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    WO2011032525A1|2011-03-24|Pressure limiting valve for large connection widths
    AT21926B|1905-10-25|Device on pipe burst valves to increase and control their sensitivity.
    DE10219007A1|2003-11-13|Reducing valve for high-pressure gas has pressure spring pushing against piston opposing pressure of gas and allowing controlled escape through valve
    DE2300426A1|1973-07-19|PRESSURE REGULATING VALVE
    同族专利:
    公开号 | 公开日
    DE102015116193A1|2016-04-07|
    AT516314B1|2017-03-15|
    AT516314A3|2016-10-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE247928C|1910-11-18|1912-06-11|
    GB191101217A|1911-01-17|1912-01-17|Albert Van Bonn|Shock Deadening Reactive Valve with Single or Double Effect for Water, Steam and Compressed Air Conduits.|
    US1102960A|1913-09-23|1914-07-07|John L Schindler|Governor for explosive-engines.|
    FR2041825A5|1969-04-01|1971-02-05|Volg N|Oil gusher shut-off valve with positive cam - control of seating action|
    JPS5718871A|1980-07-03|1982-01-30|Gasutotsupu Kogyo Kk|Safety device on gas supply route|
    AR028418A1|2000-05-16|2003-05-07|Pipelife Austria Gmbh & Co Kg|SECURITY CLOSURE DEVICE FOR GAS PIPES|
    DE10127435B4|2001-06-06|2013-03-14|Mertik Maxitrol Gmbh & Co. Kg|Excess flow valve|
    DE102005056068B4|2005-04-25|2019-06-13|Hawle Armaturen Gmbh|Overpressure-closing valve|
    WO2008021963A2|2006-08-09|2008-02-21|Donald Milton Loper|Hydraulic system safety shut off valve|AT523392B1|2020-08-26|2021-08-15|Siemens Mobility Austria Gmbh|Compressed air supply arrangement for a train composition|
    法律状态:
    2018-06-15| HA| Change or addition of new inventor|Inventor name: PETER MASLOFF, AT Effective date: 20180420 |
    优先权:
    申请号 | 申请日 | 专利标题
    ATA747/2014A|AT516318B1|2014-10-02|2014-10-02|Security locking device|
    ATA592/2015A|AT516314B1|2014-10-02|2015-09-10|Security locking device|ATA592/2015A| AT516314B1|2014-10-02|2015-09-10|Security locking device|
    DE102015116193.1A| DE102015116193A1|2014-10-02|2015-09-24|Security locking device|
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