• 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:
    There is shown a check valve with a flow opening (4) having a housing (2) and with a closing or opening the flow opening (4) provided flap (3) in the housing (2) via its valve shaft (7) between a closing - And at least one open position (5 and 6) is pivotally mounted. In order to provide a special stability of the non-return flap (1), it is proposed that the flap shaft (7) has a recess (12) for forming a flow channel (13) between the flap front and rear side (14, 11) in at least one open position ( 6) of the flap (3) (1).
    公开号:AT510942A1
    申请号:T402011
    申请日:2011-01-12
    公开日:2012-07-15
    发明作者:
    申请人:Praher Kunststofftechnik Gmbh；
    IPC主号:
    专利说明:

    * · * ≪ * · ···· »4 · * · 12/01 2011 21:31 FAX 0761263884 PA JELL @ 004
    -1 - (00 063PAT) jel
    The invention relates to a non-return valve with a housing having a Durchfiussöffnung and provided for closing or opening the Durchfiussöffnung flap which is pivotally mounted in the housing via its Kiappen wave between a closed and at least one open position.
    In order to relatively easily rotatably support a capstan of a flap in a housing of a non-return flap, it is known (DE8909368U1) to provide a space between the housing and the internal cap shaft. Generally disadvantageous in such bearings is that there is an increased risk of contamination, especially in the area of the time, especially in the area of this gap, because here, among other things, due to the exposed disc a quiet zone in the liquid flow through the non-return valve can form. Impurities in the liquid flow will therefore increasingly accumulate, especially in this flow-calmed flap area, which can lead to a disadvantageous impairment of the mobility of the flap and thus to a functional impairment and in the extreme case to a shaft break and thus to a failure of the check valve. Stable non-return valves in applications with increased risk of contamination can not be created.
    It is therefore an object of the invention to improve a non-return valve of the type described in such a structurally simple manner that even in application areas with increased risk of contamination a high 12/01 2011 Ml 21:29 ISE / EM NR 8401J @ 004 12/01 2011 21:31 FAX 0761203884 PA JELL ® 005 * 4 * «4 * 4 *« «* * 4 * ·« 444 * 4 «* * * # **« ·· * · · · * «*« · 4 - 2 -
    Stability and reliability can be obtained. In addition, the check valve should be inexpensive and easy to handle.
    The invention achieves the stated object in that the flap shaft has a recess for forming a flow channel between the front and rear flap in at least one Offeniage the flap.
    If the valve shaft has a recess for forming a flow channel between the front and rear flaps in at least one open position of the flap, then it can not only prevent contaminants from accumulating in the region of the flap wall, but it can also be achieved Remove already deposited impurities. The flow channel which is particularly formed on the basis of the recess can namely ensure a sufficient fluid circulation or flushing of the shaft even in the shaft region, so that impurities occurring there are subjected to a further movement and thus can not have any settling tendencies. However, any impurities can also be solved by this fluid circulation or flushing the shaft, whereby caking of the impurities in these areas of the check valve can be excluded. In contrast to non-return valves with conventional flaps or Klappenwelien can be ensured according to the invention by the special structural design of the valve shaft, a comparatively long service life and reliability of the check valve. In addition, the change to the valve shaft is comparatively simple in design, so that a stable and cost-effective check valve can be made possible with little effort.
    Simple construction conditions may arise if the lateral surface of the valve body forms the particular groove-shaped recess. Elaborate processing steps to provide the recess can be avoided, which can lead, inter alia, to a cost-effective check valves. 12/01 2011 MI 21:29 LSE / EM NR 8401] ®005 12/01 2011 21:32 FAX 0761263884 PA JJSLL 0006 • * · * »φ ·» »· · · * *» »· ** # · t · * * »#» ·· * * * «« »« * I · - 3 -
    If the recess at least partially surrounds the flap axis of the flap shaft, a flow and thus a liquid circulation in the region of the flap line can be ensured in the case of a multiplicity of open positions of the flap. In addition to a reduced risk of new contamination can thus also result in an increased self-cleaning of the check valve, whereby the stability can be improved even in relatively heavily contaminated application environments.
    If the flap in its closed position over a conical sealing surface on the housing, then the stability of the Rückschiagklappe can be further improved. In particular, pressure pulsations can be intercepted by the non-return valve damage resistant. In addition, the conical shape of the flap and / or the cone-shaped sealing surface can be used to assist the self-cleaning of the valve shaft, in which an at least partially deflected to the valve shaft flow is generated. For this purpose, the conical shape of the flap and / or the cone-shaped sealing surface in the direction of the flap shaft are aligned such that in an open position of the flap results in a deflected on the recess of the flap line flow, so as to improve the liquid circulation or flushing of the shaft , Impurities in the area of the shaft are thus easier to remove, and thus even quiet zones in the flow field can be additionally reduced. In particular, turbulent flows generated in this way can be distinguished. An increased stability of the check valve and a guarantee of their function may thus arise.
    A particularly tight closure of the flow opening through the flap can be created if a particular dovetail-shaped receiving groove runs around the cone of the flap, in which a seal which is at least partially projecting with respect to the cone is provided. Accumulation of soiling on the particular designed as an O-ring seal and on the flap are so avoidable. In addition, the gaskets can be used to dampen m-21/01 2011 Ml 21:29 ISK / EM NR 8401 Ί @ 006 12/01 2011 21:32 FAX 0761263884 PA JELL @ 007
    - 4 - mechanical closing loads are used to improve the stability of the check valve.
    The risk of damage to the seal under increased force loads can be reduced if the flap has a stop which limits the seat of the cone of the flap and thus the deformation of the seal.
    Simple handling conditions during assembly of the non-return valve can be made possible if a particular radially outwardly projecting positioning is provided on the housing, which integrally with the housing forms a predetermined breaking point. In general, it is mentioned that these structural features can be seen regardless of the type and shape of the recess on the valve shaft. In addition, with a one-piece design of the housing and positioning device reduces manufacturing costs and thus a cost-effective check valve can be created.
    Forms the positioning a finger recording, then the handling of the check valve can be further simplified.
    The stability of the check valve is improved, if the flap shaft is mounted pivotably in the housing via at least one radial slide bearing. Namely, the radial slide bearing can provide evenly distributed force removal from the valve shaft to the housing so as to withstand even high force loads.
    In particular, it has been found to be advantageous if a flap with a recess on its valve shaft at a check valve to form a flow channel between the Vorklappen- and -rückseite is used in at least one Offeniage the flap because backwash the Klappenwelie improved and thus free of impurities can be held. 12/01 2011 WED 21:29 [SE / EM NO 8401] @ 007 12/01 2011 21:32 FAX 0761263884 PA JELL ® 008 - 5 -
    It is also the object of the invention, a cap, in particular a spare part bez. Replacement part, to create a check valve with which flap the stability and reliability of the check valve can be improved.
    The invention achieves the stated object in that the flap shaft has a recess for forming a flow channel between the front and rear flap in at least one open position of the flap.
    If the flap shaft has a recess for forming a flow channel between the flap front and rear side in at least one open position of the flap, then a cap can be provided which is not only comparatively easy to insert into an existing non-return flap but also to a particular increase in the Stability of the recoil cap may result. Because through the recess can namely a Hinterspüien the flap shaft can be improved without further measures, which can impede impurities in this area difficult. In addition, based on the self-cleaning the flap function, in particular closing function, even with long operation can be ensured.
    In the figures, for example, the subject invention is illustrated using an exemplary embodiment. 1 shows a front view of a non-return valve,
    2 is a sectional view according to Il-Il of Fig. 1,
    3 is an enlarged partial view of FIG. 2 and
    Fig. 4 is a view according to FIG. 3 with the flap open.
    The example of Fig. 1 dargesteilte recoil cap 1 has a housing 2, on which a flap 3 is pivotally mounted. The flap 3 serves to close or open a flow opening 4 of the housing 1, in which this flap 3 occupies a closed position 5 or open position 6, which layers can be taken in particular in the comparison of Figures 3 and 4. It is quite 12/01 2011 MI 21:29 [SE / EM NO. 8401] ®008 12/01 2011 21:33 FAX 0761263884 PA JELL 0009 * * · fr fr fr · fr · fr fr # fr * fr fr fr * fr - 6 - conceivable that the flap can occupy different openings 6, especially because these openings 6 are also characterized by parameters of the liquid flow, which other layers have not been shown in detail. Furthermore, it is also mentioned that, of course, also connected and not shown fittings, in particular pipe parts, the open positions 6 of the flap 3 can limit. In general, it is further mentioned that under an open position 6, an open division of the flap 3 with respect to the flow opening 4 can be understood. The flap 3 is - as shown in Fig. 1 - via a Klappenweile 7 in the housing 2 pivotally mounted about a flap axis 8 and that end over a respective bearing point 9. For a slight pivoting of the folding pen shaft 7 this is between its bearings 9 opposite the housing spaced provided, so that here forms a gap 10. Just such a gap 10 is subject to an increased risk of contamination, so that a safe operation of the flap 3 can not be guaranteed, especially when the check valve 1 is used in highly contaminated areas of application. In the area of the rear side 11 of the flap 5, in the open position 6, calmed zones can form in the flow field, so that there is to be expected more precipitating impurities. In order to exclude this circumstance of the increased contamination of the area of the flap shaft 7 or to provide a stable check valve 1, the invention proposes that the flap shaft 7 has a recess 12 for forming a flow channel 13 between the Klappenvorder- and -rückseite 14, 11 in has at least one open position 6 of the flap 3. In the closed position 5, therefore, there is no flow channel 13 between the front and rear flaps 14, 11, whereby the non-return valve 1 is not short-circuited. With the help of the flow channel 13 can now be provided for a sufficient liquid circulation or flushing the flap shaft 7, which can be seen in particular in FIG. 4, so that impurities occurring there can have no Absetzendenzen. The quiet zones in the region of the flap shaft 7 can be reduced so that even a stable use of the check valve 1 in heavily polluted environments is possible. In addition, even in the closed position 5 of the flap 3 settling impurities due to the 12-01 2011 MI 21:29 [SE / EM NR 8401J ® 009 12/01 2011 21:33 FAX 0761263884 PA JELL @ 010 -7 - According recess 12 according to the invention can be solved from the field of Klappeweüe 7 when the flap changes into its open position 6 and thus opens a flow channel 13 for self-cleaning. Such contamination can occur in particular when the check valve 1 is used in vertical pipes, which has not been dargesteilt closer.
    The lateral surface 15 of the valve shaft 7 forms the recess 12, wherein for the sake of simplicity, this recess 12 is pronounced in the form of a groove 16, which can be taken from Figures 1 and 3. It is also conceivable to introduce such a groove 16 later in the flap groove 7 in order to improve conventional flaps 3 with regard to their functional reliability. However, the recess 12 rotates the flap axis 8 of the flap shaft 7 more than 180 degrees only partially. This can be created in each open position 6 of less than 180 degrees pivotable flap 3, a flow channel 13 for self-cleaning of the gap 10.
    The flap 3 is in its closed position 5 via a conical sealing surface 17 on the housing 3, whereby the check valve 1 may have a special stability even at high closing forces of the flap 3. Furthermore, the conical sealing surface 17 is oriented so aligned with respect to the Klappeweüe 7, that thus a flow in the direction of the flap shaft 7 can form when the flap 3 is in an open position 6. This flow can also be turbulent. An improved self-cleaning of the area of the flap shaft, in particular an improved function of the recess 12 forming a flow channel 13, can thus be made possible.
    To the cone 18 of the flap 3 extends a closed dovetail-shaped receiving groove 19. In this receiving groove 19 is provided opposite the cone 18 in the open position 6 of the flap 3 at least partially protruding seal 20. 12/01 2011 MI 21:29 [SE / EM NO 8401] @ 010 12/01 2011 21:33 FAX 0761263884 PA JELL ® 011 • I * * «I 9 99 1 9 1199 + ***« · «« « | • * «4« 9 * · 9 * 9 4 9 9 9 * 9 -8-
    Furthermore, the flap 3 has a stop 21. By this stop 21, the seat 22 of the cone 18 and thus the deformation of the seal 20 is limited.
    On the housing 2, a radially outwardly projecting positioning device 23 is further provided. Housing 2 and positioning device 23 are made in one piece. However, the positioning device 23 forms two predetermined breaking points 24 so as to be easily separated from the housing can. Furthermore, in the positioning device 23, a finger holder 25 is provided in order to create simple handling conditions.
    Advantageous pivoting conditions result from the fact that the flap shaft 7 is mounted ver-pivotably in the housing 2 via two formed as a radial plain bearings Lagerstelien 9. One bearing half of the sliding bearing is formed by a securing part 26 inserted into the housing - the other half of the bearing from the housing 2 itself.
    As a closing aid of the flap 3, a closing spring 27 is provided, wherein the housing further comprises O-rings 28, for example, to allow a tight connection to fittings not shown. 12/01 2011 MI 21:29 [SE / EM NR 8401] 0 011
    权利要求:
    Claims (12)
    [1]
    12/01 2011 21:33 FAX 0761203884 PA JELL @ 1012 Patent Attorney Dipl.-Ing, Friedrich Jell Hittmairstrasse 11, A-4020 Linz (00 063PAT) Claims: 1. Non-return flap with a housing (2) having a flow opening (4) and with a flap (3) provided for closing or opening the flow opening (4), which is mounted pivotably in the housing (2) via its flap shaft (7) between a closing and at least one open position (5 and 6), characterized in that the flap shaft (7) has a recess (12) for forming a flow channel (13) between the flap front and rear sides (14, 11) in at least one open position (6) of the flap (3).
    [2]
    2. non-return valve according to claim 1, characterized in that the lateral surface (15) of the Klappenwehe (7) forms the particular groove-shaped recess (12),
    [3]
    3. Non-return valve according to claim 2, characterized in that the recess (12) at least partially surrounds the flap axis (8) of the flap shaft (7).
    [4]
    4. Non-return valve according to claim 1, 2 or 3, characterized in that the flap (3) in its closed position (5) via a conical sealing surface (17) rests on the housing (2).
    [5]
    5. Non-return valve according to one of claims 1 to 4, characterized in that around the cone (18) of the flap (3) has a particular dovetail-shaped receiving groove (19), in which one opposite the cone (18) in the open position (6). the flap (3) is provided at least partially projecting seal (20). 12/01 2011 MI 21:29 [SE / EM NR 84011 ®012 12/01 2011 21:34 FAX 0761263884 PA JELL 1) 013 Μ ··· * MM «·· * ·« 9 1 I k «· · ♦ ····································································································································································································
    [6]
    - 6. Non-return valve according to claim 5, characterized in that the flap (3) has a stop (21) which limits the seat (22) of the cone (18) of the flap (3) and thus the deformation of the seal (20).
    [7]
    7. kickback cap according to one of claims 1 to 6, characterized in that the housing (2) is provided in particular a radially outwardly projecting positioning (23) which integrally connected to the housing (2) at least one predetermined breaking point (24).
    [8]
    8. Non-return valve according to claim 7, characterized in that the positioning device (23) ausbiidet a finger holder (25).
    [9]
    9. non-return valve according to one of claims 1 to 8, characterized in that the flap shaft (7) in the housing (2) via at least one radial sliding bearing (26) is pivotally mounted.
    [10]
    10. Use of a flap with a recess (12) on its flap shaft in a non-return flap (1) for forming a flow channel (13) between the Klappenvorder- and -rückseite (14, 11) in at least one open position (6) of the flap (3 ) to backflush the flap shaft (7) improved.
    [11]
    11. flap for a non-return flap (1) with a flap shaft (7), characterized in that the Klappenwelie (7) has a recess (12) for forming a flow channel (13) between the flaps front and -rückseite (14, 11) in at least one open position (6) of the flap (3). Linz, January 12, 2011 Praher Kunststofftechnik GmbH by:
    [12]
    12/01 2011 MI 2.1: 29 [SE / EM NR 8401] ®013
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3726308A|1971-12-09|1973-04-10|Hale Fire Pump Co|Suction check valve for pumps|
    US4781214A|1987-03-09|1988-11-01|Scaramucci John P|Swing check valve disc|
    US4825902A|1988-01-11|1989-05-02|Halliburton Company|Flapper valve with protective hinge pin sleeve|
    DE8909368U1|1989-08-03|1989-09-21|Univam Peter Janssen-Weets Kg, 2878 Wildeshausen, De|GB2552096B|2015-02-17|2021-06-09|Halliburton Energy Services Inc|3D printed flapper valve|
    DE202016103458U1|2016-06-29|2016-07-11|Reinert - Ritz Gmbh|Shut-off valve for pipelines|
    CN106594325B|2017-02-06|2018-11-20|广东永泉阀门科技有限公司|Pressure reduction type backflow preventer|
    CN106594332B|2017-02-06|2018-11-20|广东永泉阀门科技有限公司|The anti-down flow check valve of pressure-reducing|
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    ES12151008.5T| ES2525026T3|2011-01-12|2012-01-12|Retention valve|
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