• 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:

    公开号:SU1808065A3
    申请号:SU894742244
    申请日:1989-10-02
    公开日:1993-04-07
    发明作者:Vyutrikh Albrekht
    申请人:Wuethrich Albrecht Maschinen；
    IPC主号:
    专利说明:

    The invention relates to a plug-in safety clutch for pipelines for pressure fluids with a connection box, which has a shut-off element in its inner part and can be pivotally driven from the shut-off position to the pipeline position or vice versa. Both compressible and incompressible fluids can be used as pressure media. ;
    The object of the invention is to provide a plug-in safety clutch which is particularly simple in design and manufacture and which also operates without leakage at high pressures.
    FIG. 1 shows a horizontal section of the body and the shut-off element: FIG.
    - vertical section of the body and the shut-off element when used as a safety clutch with an inserted plug in the shut-off position; in fig. 3 - the same, with the shut-off element turned into the pipeline position; in fig. 4 is a perspective view of a preferred one-piece housing with a related shut-off member; in fig. 5 - shut-off element with a special seal; in fig. 6 safety clutch for particularly high pressures.
    The plug sleeve includes a sleeve box 1 and a plug 2. FIG. 1 shows that the box 1 has a threaded inlet 3 in the body 4. The threaded hole 3 receives the threaded nipple of the supply pipeline. It is found
    1808065 AZ makes its own continuation in the equiaxed central hole 5, which creates a connection between the threaded hole 3 and the receiving hole (internal cavity) passing perpendicularly to it, piercing the body 6. On the opposite side of the coupling box 1, the outlet hole 7 is shown, passing coaxially with a threaded hole 3 and a central hole 5. The box 1 is here essentially cubic and only vaulted on the outlet side. In the receiving opening 6, a shaped part 8 in the form of a cylindrical body is supported with the possibility of rotation. The shaped part 8 fits exactly and tightly to the receiving opening 6 of the housing 2 of the coupling box 1 and serves as a shut-off element for compressed air. A diametrical through hole 9 passes through it, which perpendicularly intersects the axis of rotation A. Through hole 9 has three zones with a stepwise increasing diameter. If the through hole 9 is viewed in the direction of the flow of the pressure medium, then first the first zone 10 with the smallest diameter is shown, the width of which corresponds to the diameter of the cylindrical hole 5. After the zone 10, a longer zone 11 of the middle stage with a large diameter follows in the direction D. Inside this zone there is an annular groove 12, which serves to receive a sealing element, for example a 0-ring 13. In direction D, there follows a zone 14 which expands abruptly in diameter again. The diameters of zones 11 and 13 are matched to plug 2.
    The plug consists of an annular sleeve 15 and has a serrated corrugation in the direction of the axis. The corrugation prevents the compressed air hose (not shown) attached to the plug from slipping, which is additionally secured there by means of a clamping strap. The sleeve 15 of the plug 2 has an annular shoulder, a thickening 16, which in the disconnected state is completely taken up by the housing 4 or the locking element 8.
    In the disconnected state, the shaped part 8, which forms the shut-off element, closes the passage for the medium. Then the shaped part is in such a pivotal position that the through hole 9 and deviates from the direction of flow of the medium. The angle between these two directions is advantageously slightly less than 90 °. In this position, the through hole 9 does not communicate with the cylindrical hole in the housing 4. so that the shaped part 8 tightly overlaps the cylindrical hole 5.
    In the depicted overlap position (Fig. 2), the widened area 14 of the bore 9 is in exact coaxial position with the hole 17 in the housing 4 of the sleeve 1. The diameter of the hole 17 corresponds exactly to the diameter of that area 14 and is slightly larger than the outer diameter of the collar of the thickening 16 of the plug. Thus, in a depressurized state, the plug can be inserted through this hole 16 at least until the plug finds a stop on the shoulder between zone 10 with the smallest diameter and zone 11 with an average diameter of the through hole 9. If the sleeve 15 from its bulge 16 to its end on the inlet side is relatively short, then the bulge 16 encounters a shoulder in the transition zone between zone 11 with an average diameter and zone 14 with the largest diameter of the through hole 9. This is usually the case. The end part 18 of the sleeve 15 is sealed with respect to the closing element 10 by means of at least one O-ring 13. In the area 14 of the through hole 9, a pressure spring 19 is inserted, which rests on the end face of the boss 16 on the plug 2 and pushes the plug outwardly.
    The hole 17 forms the end of the limit hole 20, which extends in the direction of rotation of the plug along the periphery of the housing 4, so that the plug 2 can be rotated until the through hole 9 is exactly aligned with the cylindrical hole 5 in the housing 4.
    The width of the longitudinal hole 20 is less than the diameter of the bulge 16 on the sleeve 15. The lower end of the longitudinal hole 20 forms the outlet 7. The design thus allows the plug 2 to be inserted into the sleeve box 1 without any pressure.
    As soon as the plug 2 is completely inserted into the sleeve box 1, you can turn the plug 2 in the direction of rotation S, Even with a slight deviation of the plug 2 from the insertion position, the shoulder of the bulge 16 rests against the inner side of the housing 4 on the side of the longitudinal hole 20 and prevents unwanted loosening of the plug when turning the plug in the direction D of the medium flow (the pressure force of the compressed medium or air must never be overcome).
    FIG. 3 shows that the pressure medium can pass through the entire coupling in a straight line, without obstacles, however, the threaded hole 3, the cylindrical hole 5, the bore 9 and the bushing 15 of the plug 2 are centered exactly coaxially with respect to each other. In the transition zone between the cylindrical bore 5 and the shaped part 8 there is still a seal 21,
    In order to prevent the plug from making an undesirable turn from the pipeline position, a recess 22 is provided in the receiving opening 6 for the rotatable fitting 8, into which the plug 2 slips with its bulge 16 in the pipeline position. The compressed air pressure applied in the end wall of the plug sleeve is sufficient to press the plug against the recess 22 and thus lock it. The compression spring supports this additionally. Only in the event of a strong drop in pressure in the supply line, for example as a result of a leak, is the plug 2 itself held by the pressure spring 19 and further in the desired position. For disconnection, the plug 2 is again pivoted from the pipeline position (Fig. 3) to the locking position (Fig. 2) due to the fact that it moves against pressure and spring force opposite to direction D. Due to this, the plug is unlocked and can be rotated together with the locking element 8 In this case, the shut-off element, like a tap, closes the cylindrical hole 5.
    Moreover, it should be borne in mind that there is still pressure in the plug 2 and the disconnected pipeline. This pressure would still be sufficient for the plug to be thrown out of the sleeve 1 as soon as it is aligned with the inlet 17. However, this is prevented by at least one pressure relief hole, in the example shown by four holes 23 for relieving pressure; which pass through the housing 4 and flow into the receiving opening 6. The unloading openings 23 are arranged so that they communicate with the passage opening 9 during the pivotal movement of the shaped part 8 in at least one intermediate position. It takes a certain, albeit short time, for the pressure to drop. In order to ensure that this time is retained during disconnection, a second recess 24 is provided in the receiving opening 6, which is much deeper than the recess 22. The plug 2 slips into this second recess 24 when it is pivoted into this intermediate position, in which the passage opening 9 communicates with the relief openings 23. Only after the pressure has dropped can the plug 2 be pushed out of the locking groove, turned into the end position and removed from the plug box without any danger. Of course, the molded part 8 in the housing 4 is locked against lateral movement. The cylindrical shaped part 8 is locked on both sides against falling out.
    This locking is carried out particularly simply by means of securing rings in the form of Seeger rings or spring-loaded retaining rings 25. Alternatively, a plug-in box with a lock is also possible. nym organ 10 conical in shape. Then, therefore, this organ becomes conical and it is required to counter it only on one side in the corresponding conical bore of the body.
    Fig. 4 shows an elegant housing 4 of a clutch box 1. It is made by turning, milling, drilling and cutting in one piece from a round steel blank and has a generally circular portion 26 and a cylindrical portion 27. The cylindrical portion 27 is provided with a threaded hole 3, which allows screw the coupling box 1 onto the nipple on the hose and tubular ends. This cylindrical part 27 can also be provided with an external thread. This allows the sleeve box to be screwed onto the sleeve at the hose or tubular ends. The circular part 26 has a receiving opening 6 transversely to the longitudinal axis of the cylindrical part 8. This receiving opening is intended to receive the locking element 8. At the edges of the end sides of the opening 6 there is one circular groove 28 into which the safety rings 25 can be inserted so that the inserted locking element 8 counter in hole 6. In the round part 26, in addition, you can see the longitudinal hole 20, which extends approximately at an angle of 90 ° with respect to the axis of the hole 6. This longitudinal hole 20 passes into a slightly larger hole 17 in the housing 4, which serves as a receiving hole for the plug in the locking position of the shut-off element 8. The round part 26 of the housing 4, parallel to the radial plane of the hole 17, is made even. On the opposite side, the circular part 26 of the housing 4 is also flat. Thanks to these flat areas, the box can be screwed onto the tubular nipple with a wrench. Inside the circular part 26 of the housing 4, there is also a blind hole 29, which runs coaxially with the axis of the cylindrical part 27. This blind hole 29 has a larger diameter than the longitudinal hole 20 and the threaded hole 3. It is therefore made by milling and turning. This blind hole 29 receives a sealing element 21.
    This sealing element 21 is generally hollow, cylindrical and on one of its side has an outer side curvilinearly concave in one direction, so that it adheres tightly to the inserted fitting 8 without gaps. the organ 8 can be achieved using the means shown in FIG. 5.
    The shaped part 8 here on its cylindrical wall has a specially made joint groove 30, which is machined from the shaped part 8,
    This groove 30 consists of two annular grooves 31 and 32 'which have a common part (combined). In this case, the annular groove 31 extends around the passage opening 9, and the annular manhole 32 adjoins in the circumferential direction to the annular groove 31 and has a common part with it. A specially made seal 33 is inserted into this annular groove 30, which fits exactly into this annular groove 30. With this seal, in the pipeline position, the connection between the hole 5 and the through hole 9 is sealed. In any position of the shut-off element 8, deviating from the pipeline position, the hole 5 overlaps to provide a seal.
    FIG. 6 shows, in exploded view, another embodiment of the safety clutch according to the invention, which is particularly suitable for high pressures and large pipe diameters. Here, the sleeve box consists mainly of a cylindrical body 34, which is approximately half the recesses into the hollow cylinder 35 and a further cylindrical shaped part 36 that fits to the inner part of the hollow cylinder 35. The body 34 has an opening 37 as a relief opening. Holes 38 and 37 extend in a direction parallel to the cylinder axis. The centers of holes 37 and 38 are further equidistant from the axis of the cylinder, so that holes 37 and 38 are located on a concentric circle with respect to the axis of the cylinder. The mouth of the opening 38, which serves as a supply line, is surrounded by an annular groove 39 that communicates with another annular groove around the mouth of the discharge opening.
    This is achieved by an annular groove flanking one of these annular grooves, which communicates with both annular grooves, although this is not necessary. The hole 38 is threaded to allow the box to be screwed onto a nipple in the supply line.
    The hollow cylindrical part 35 of the cylinder 34 has on its cylindrical jacket a longitudinal opening 40 which extends along the circumferential direction of the hollow cylinder 35. This longitudinal opening 40 on its end side merges into a larger opening 41. The longitudinal hole 40 extends generally with respect to the axis of the cylinder through an angle of rotation that corresponds to the angle between the centers of both holes 37 and 38.
    The cylindrical shaped part 36 has a curved bore 42, which consists, for example, of a hole in the radial plane and a hole in the axial direction, which communicate with each other. The hole extending in the radial plane is made similar to the through hole 9 in the shut-off element 8 (Fig. 2) for receiving the corresponding plug. The cylindrical shaped part 36 in the installed state is locked in its position inside the hollow cylinder 35 by means of the safety ring 25, but can be rotated in it. For this, the safety ring 25 is inserted into the groove 43 on the inner side of the hollow cylinder 35.
    The safety clutch (Fig. 6) is particularly easy to manufacture and does not cause any difficulties in the manufacture of large safety clutches, therefore it is especially suitable for high pressure and for pipelines with large diameters.
    Of course, at high pressures and large diameters of pipelines, the force required to turn the shut-off element 36 increases. the safety ring 25 is largely excluded.
    In addition, for closing and opening, the closure member 36 can be provided with a pivoting lever on its free-remaining side. These pivoting means can also be provided by means of an axially extending pivot shaft, which is provided with a pivoting handle.
    Another problem, which can arise at high pressures and large pipe diameters, is the greatly increasing force in order to keep the plug in the inserted state during its rotation in the shut-off element.
    This downward push is necessary in order to release the plug from the locking position, which then allows rotation. In the case of smaller sizes and pressures of the order of a few bar, the plug can easily be inserted into the closing element in spite of the existing pressure and the opposing spring force of the corresponding compression spring and thus out of the locking position. In this position, it is easy to hold it with your hand. But, if, as already mentioned, high pressures or large diameters of pipelines or plugs prevail, then this becomes a problem for actuating the safety clutch. This can be helped by the fact that the shut-off element 8 is provided with an opening 44, which partially intersects the opening 9 perpendicular to its axis.
    A safety bolt 45 can be inserted into this hole 44, which in the fully inserted state of the plug fits into a special circular groove in the plug and locks it in this position. Thus, it can be rotated, and it is not necessary to constantly squeeze it by hand into the locking element 8.
    In addition to the maintenance advantages, the simple design of the plug-in safety clutch according to the invention should be pointed out again. In its simplest design, the clutch consists of only three elements, namely: clutch box 1, shut-off element 8 and plug 2. With regard to the seal, this is not a problem with a precise design of the clutch. Experimental models that were made without seals showed only small leaks. The pressure spring 19 is also optional, in normal operating conditions the functionality is guaranteed even without the pressure spring 19.
    权利要求:
    Claims (9)
    [1]
    Claim
    1. Plug-in safety coupling for pressure pipelines, containing a junction box with an inlet and outlet and an internal cavity between them, in which a shut-off element with a through hole is installed, a plug passed into the hole of the shut-off element and exits the junction box, and sealing elements located between the plug and the shut-off element and the connection box and the shut-off element, the latter being installed so that it can be rotated from the locking position to the open or vice versa, characterized in that the body of the connection box is made monolithic with an internal or external thread for connection with the pressure pipeline, and the shut-off element is made in the form of a cylindrical part, in which the axis of the through hole passing through it is located perpendicular to the axis of the cylindrical part, while a clamping ring is installed in the body of the junction box to prevent axial movement of the shut-off element in the mentioned core puse.
    [2]
    2. Clutch pop. 1, characterized in that the through hole of the shut-off element is made three-stage, and on the surface of the middle stage there is an annular groove for the sealing element, an annular shoulder is made on the plug, entering the hole of the larger stage of the shut-off element, and between the annular shoulder and the end connecting the large and middle steps, a pressure spring is installed.
    [3]
    3. Clutch pop. 2, characterized in that a discharge opening is made in the junction box, connecting its outer surface with the inner cavity; and on the shut-off body around the smaller step of the through hole and the discharge hole, annular grooves are made, connected by a common part and located in the circumferential direction, while a sealing element is installed in this combined groove, repeating the shape of the groove. ·
    [4]
    4. The coupling according to claim 2, characterized in that the internal cavity for the shut-off element is made in the form of a cylindrical hole located transversely to the longitudinal axis of the connecting box, the outlet of which is made longitudinal, located perpendicular to the axis of the cylindrical hole and extends around it at an angle of at least 60 °.
    5 H coupling according to claim. 4, l and m of h and w uj and I with I in that the longitudinal axis of the outlet is situated in one plane with the axis of the input aperture provided for threaded connection to the pressure pipe,
    [5]
    6. The coupling according to claim 4, which is based on the fact that the unloading hole is located but in the area opposite the longitudinal outlet, the edge of which opposite the unloading hole is made with a recess that serves as a retaining groove for the plug ... ·
    [6]
    7. The coupling according to PP. 4-6, characterized by the fact that an annular bore for the sealing element is made in the junction box at the junction of the inlet of the junction box and its inner cavity under the locking element, and the diameter of the annular bore is larger than the longitudinal hole;
    [7]
    8. The coupling according to claim 1, characterized in that the internal cavity for the shut-off element is cylindrical with a length of half of the connecting box and is located along the latter, the outlet of which is made longitudinal at right angles to the axis of the cylindrical internal cavity and around it at an angle of at least 60 °, and in the body of the junction box there is an unloading hole that goes out into the inner cavity, and around the outlet of the unloading hole and the inlet for the pressure pipeline in the junction box there are annular grooves connected to each other by a common part framing them 10, in which a common sealing gasket is installed ...
    [8]
    9. The coupling according to claim 8, with the fact that the through hole of the shut-off body at one end comes out radially to the cylinder
    15 a lindrical surface, and the other - in the axial direction to the end surface and coincides with the axis of the inlet for the pressure pipeline ^, moreover, in the intermediate position of the shut-off element, the axially located end of the through hole communicates with the discharge opening in the junction box.
    [9]
    10. The coupling according to PP. 1-9, characterized in that at least one of
    On the end surfaces of the shut-off body, a lever or an axis with a handle is installed on the 25 end surfaces of the shut-off body.
    I
    Fig. 4
    FIG. 6
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1808065A3|1993-04-07|Plug safety clutch for pressure pipe lines
    US4676533A|1987-06-30|Reversible lock and seal apparatus
    US4045060A|1977-08-30|Pipe retainer joints
    CA2104397C|1996-01-02|Low spill identical half coupling
    RU2008102977A|2009-08-10|HYDRAULIC COUPLING
    RU2402713C2|2010-10-27|Pipeline connection point
    US5265917A|1993-11-30|Quick-acting, sealed connection
    US5326072A|1994-07-05|Plug-in safety coupling, in particular for compressed air lines
    US6641178B2|2003-11-04|Jointing system for pipes
    US5681027A|1997-10-28|Insertable type safety coupling for pressure pipes
    CA2052002C|1994-09-20|Valve
    US4353580A|1982-10-12|Apparatus for removably attaching a pipe
    US5950985A|1999-09-14|Connecting device for connecting fluid conduits
    EP1724509B1|2011-03-16|A variable angle pipe connector
    US3203714A|1965-08-31|Quick opening coupling
    US6126369A|2000-10-03|Hot tap tool
    US4488741A|1984-12-18|Compression coupling for service valve
    US3471175A|1969-10-07|Coupling device
    EP0051993A1|1982-05-19|Blocked ball valve
    US5090449A|1992-02-25|Coupling security and safety latch system
    US6702258B1|2004-03-09|Universal ball valve assembly
    US20030080563A1|2003-05-01|Irrigation valve
    KR101757575B1|2017-07-13|Quick coupling device
    US3029093A|1962-04-10|Pipe coupling embodying fluid pressure actuated locking means
    JP2005024085A|2005-01-27|Pipe joint
    同族专利:
    公开号 | 公开日
    AU2929289A|1989-08-25|
    EP0327494A1|1989-08-09|
    ES2048861T3|1994-04-01|
    KR970009020B1|1997-06-03|
    BR8905295A|1990-05-08|
    DE58906605D1|1994-02-17|
    WO1989007222A1|1989-08-10|
    CA1318904C|1993-06-08|
    EP0327494B1|1994-01-05|
    CH675619A5|1990-10-15|
    KR900700816A|1990-08-17|
    AT99786T|1994-01-15|
    JP2730598B2|1998-03-25|
    UA13304A|1997-02-28|
    JPH02503109A|1990-09-27|
    EP0353272A1|1990-02-07|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    RU2743707C2|2016-10-20|2021-02-24|Хенн Гмбх Унд Ко Кг.|Coupler plug seal for the drive motor hydraulic line|GB638959A|1948-04-28|1950-06-21|John Percival Beeston|Improvements in and relating to couplings for conduits and hoses|
    FR2028653A5|1969-01-08|1970-10-09|Staubli Freres & Cie|
    FR2068039A6|1969-11-26|1971-08-20|Staubli Freres & Cie|
    GB1503647A|1975-05-19|1978-03-15|Domnick Hunter Eng|Fluid flow couplings|
    IL73962D0|1984-12-28|1985-03-31|Sagiv Mashavei Sadeh|Connector assembly permitting quick attachment and detachment of fluid conduits|US5562273A|1989-09-27|1996-10-08|Han Oetiker Ag Maschinen- & Apparatefabrik|Plug-in coupling for pressure lines|
    DE3932577C1|1989-09-29|1990-11-22|Dornier Medizintechnik Gmbh, 8000 Muenchen, De|
    CH685257A5|1992-06-03|1995-05-15|Oetiker Hans Maschinen|A pluggable coupling for pressure lines.|
    DK0632872T3|1993-01-22|1996-10-07|Oetiker Hans Maschinen|Insertable safety connection for pressure lines|
    FR2772280B1|1997-12-17|2000-03-03|Elekta Implants|DEVICE FOR COUPLING A SYRINGE TO A PHYSIOLOGICAL FLUID FLOW LINE|
    WO2002070941A1|2001-03-01|2002-09-12|Hans Oetiker Ag Maschinen- Und Apparatefabrik|Plug-in safety coupling|
    ES2332114T3|2007-02-07|2010-01-26|Albrecht Wuthrich|SECURITY COUPLING FOR COMPRESSED AIR LINES.|
    CH699708A2|2008-10-10|2010-04-15|Albrecht Wuethrich|Plugging safety clutch for pressure pipes, has coupling socket with cylindrical interlocking element that is mounted on coupling socket in rotating manner|
    GB2518163A|2013-09-11|2015-03-18|Inspired Designs Ltd|Tubular couplings and connectors|
    JP6706727B2|2014-07-03|2020-06-10|ダイセン株式会社|Fluid fitting|
    JP6039045B2|2015-12-07|2016-12-07|日東工器株式会社|Pipe fitting|
    CN106090493B|2016-08-15|2018-05-22|天津市环科检测技术有限公司|It is single to close towards logical quick coupling|
    AT518984B1|2016-10-11|2018-03-15|Georg Hagleitner Hans|Coupling device with integrated stopcock|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    CH377/88A|CH675619A5|1988-02-03|1988-02-03|
    PCT/CH1989/000014|WO1989007222A1|1988-02-03|1989-01-24|Plug-in safety coupling, in particular for compressed air lines|LV931373A| LV5636A3|1988-02-03|1993-12-23|Plug type protective sleeve for pressure pipes|
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