WO2008058454A1 - Soupape antiretour à contre-serrage comprenant de clapets de soupape doubles - Google Patents

Soupape antiretour à contre-serrage comprenant de clapets de soupape doubles Download PDF

Info

Publication number
WO2008058454A1
WO2008058454A1 PCT/CN2007/003178 CN2007003178W WO2008058454A1 WO 2008058454 A1 WO2008058454 A1 WO 2008058454A1 CN 2007003178 W CN2007003178 W CN 2007003178W WO 2008058454 A1 WO2008058454 A1 WO 2008058454A1
Authority
WO
WIPO (PCT)
Prior art keywords
valve
valve body
fixed
double
key
Prior art date
Application number
PCT/CN2007/003178
Other languages
English (en)
Chinese (zh)
Inventor
Zhiliang Zhang
Dahua Cao
Original Assignee
Neway Valve (Suzhou) Co., Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Neway Valve (Suzhou) Co., Ltd filed Critical Neway Valve (Suzhou) Co., Ltd
Publication of WO2008058454A1 publication Critical patent/WO2008058454A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/03—Check valves with guided rigid valve members with a hinged closure member or with a pivoted closure member
    • F16K15/035—Check valves with guided rigid valve members with a hinged closure member or with a pivoted closure member with a plurality of valve members
    • F16K15/036—Dual valve members with hinges crossing the flow line substantially diametrical
    • F16K15/038—Dual valve members with hinges crossing the flow line substantially diametrical having a common hinge

Definitions

  • the utility model relates to a valve in a gas liquid pipeline system, in particular to a double valve plate pair clamp type check valve. Background technique
  • Check valves are mechanical valves that direct gas or liquid flow in only one direction to prevent backflow.
  • the check valve is classified as a single row valve, the fluid flows in the direction of the flow and opens the valve, and the return flow forces the valve to close.
  • the check valve has a variety of different structures to open and block the flow of liquid or gas, such as: single valve plate swing type, double flap type, lift type check type, silent type ball type Check valves and conical check valves, among which the double-lobe check-type check valves are popular in liquid conduction systems due to their compact structure and low cost.
  • the existing double-valve clip type check valve mainly consists of a valve body and a valve piece, and a valve seat is arranged in the through hole of the valve body, and the valve piece is composed of a pair of semicircular valve flaps, and the two valve flaps are The straight end is rotated by a pin shaft, and a fixed shaft parallel to the pin shaft is arranged in the valve on the side of the valve opening direction to prevent the valve opening angle from being greater than 90 degrees, and a pair of torsion springs are arranged on the pin shaft One end of the torsion spring is fixed on the valve flap, and the other end is fixed on the fixed shaft to increase the reaction speed of the valve, and corresponding to the shaft end of the valve body at the pin shaft and the fixed shaft respectively, a shaft hole is opened, and the screw plug is fixed The valve body is fixed. In use, the forward flow will cause the two flaps to fold together to open the valve. Backflow will cause the flap to expand to form a full circle and close the valve.
  • U.S. Patent No. 5,242,032 A discloses a liquid check valve in which both ends of a pin and a fixed shaft are respectively inserted in a support seat, and on the valve body corresponds to the outer side of the support seat.
  • a protrusion is arranged as a longitudinal limiting plate of the supporting seat, and a hole is formed in the opposite valve seat, and an elastic limiting rod is arranged therein.
  • the utility model aims to provide a hidden trouble of no external leakage, simple processing technology, convenient installation and replacement of the valve piece, and a double-lobe-clip type check-out width.
  • a double-lobe clip type check valve comprising a valve body, a valve plate and a fixed shaft, wherein the valve piece is composed of a pair of semi-circular valve flaps, and
  • the pin shaft and the fixed shaft are respectively fixed to the valve body through a bearing seat disposed at two ends of the valve body, and the support seat is outwardly extended near the inner end portion of the valve body.
  • the protrusion corresponding to the protrusion is provided with a limiting fixing hole matched with the fixing body; the bottom of the supporting seat near the outer end of the valve body is provided with a key groove, and a sliding groove is formed on the inner wall of the valve body corresponding to the key groove, the supporting seat The key that is engaged with the keyhole formed by the keyway and the chute is fixed to the valve body.
  • valve body and the valve piece of the above check valve can be the same as the double-lobe clip type check valve of the prior art, and a pair of semi-circular valve flaps are used as the valve piece, and the valve piece is opened when the valve piece is flowing downstream, when the flow is reversed
  • the two semicircles are combined into a full circle closing valve.
  • a pair of torsion springs are arranged on the pin connecting the valve discs, one end of the spring is fixed on the valve flap, and the other end is fixed on the fixed shaft. .
  • the two ends of the fixed shaft and the pin shaft are respectively inserted into the support seat, and are placed in the valve body, so that the end of the support seat is protruded into the limit fixing hole inside the valve body, and the bottom of the support base
  • the keyway forms a keyhole with the sliding groove on the inner wall of the valve body, and the key is inserted into the keyhole, thereby respectively forming the lateral and longitudinal fixing of the support seat.
  • a further technical solution further includes: a pair of clips respectively sleeved on the outer end of the support seat, wherein each clip is sleeved on the fixed shaft through the intermediate through hole, and the two sides correspond to the key groove of the support base
  • the limiting piece is respectively bent to the valve body wall, and the end of the limiting piece is provided with a protrusion which is inserted into the valve body sliding groove.
  • the limiting piece of the clip is bent toward the valve body side, and the convex card at the end of the limiting piece is inserted into the valve body.
  • the slip of the key in the keyhole can be restricted in this way, and the effect of the fixed key is achieved.
  • the pin hole corresponding to the insertion pin shaft on the support base is a round hole.
  • the pin moves only in the direction of the valve flow in the waist hole, no lateral movement, avoiding the abrasion between the valve sealing surface and the sealing surface of the valve body when opening, and can make the valve plate work smoothly and reduce noise.
  • the limit key corresponds to an arc shape of the end surface of the valve body to match the curvature of the inner wall of the valve body, so as to facilitate the insertion of the key and ensure the cooperation of the key and the key groove.
  • the support seat of the utility model defines the lateral position of the support seat by the cooperation of the protrusion and the limiting fixing hole on the valve body
  • the slot formed by the key and the support seat and the valve body defines the longitudinal position of the support seat, thereby forming a fixing of the valve pin shaft and the fixed shaft and the valve body.
  • the fixing manner avoids opening the pin hole on the wide body, thereby eliminating the leakage hazard.
  • the process of slotting and opening the valve body is simple, and the installation and disassembly are more convenient.
  • FIG. 1 is a schematic structural view of a first embodiment of the present invention
  • Figure 2 is an exploded perspective view of Figure 1;
  • Figure 3 is a schematic cross-sectional view taken along line A-A of Figure 2;
  • Figure 4 is a partial cross-sectional view of the B-B of Figure 2;
  • valve body 1, valve body; 2, valve flap; 3, pin shaft; 4, fixed shaft; 5, support seat; ⁇ 6, clip; 7, key; 8, spring; 9, fixed hole; 11, chute; 12, keyway; 13, limit piece; 14, bump; 15, pin hole.
  • a double-lobe clip type check valve includes a valve body 1, a valve piece and a fixed shaft 4, and the valve piece is composed of a pair of semi-circular valve flaps. 2 components, and set The pin shaft 3 at the straight edge of the valve flap is rotatably connected, and a pair of torsion springs 8 are sleeved on the pin shaft, one end of which is fixed on the valve flap, and the other end is fixed on the fixed shaft 4 to improve the reaction speed of the valve plate.
  • the pin shaft '3', the two ends of the fixed shaft 4 are respectively inserted into the through holes in the support base 5, and the pin holes 15 corresponding to the pin shaft are round waist holes, and the support seat is provided near the inner end of the valve body
  • the outer extending protrusion 10 has a limiting fixing hole 9 corresponding to the valve body corresponding to the protrusion; the bottom of the outer side of the supporting body near the valve body is provided with a key groove 12, and the inner wall of the valve corresponding to the key groove is opened
  • the chute 11 is fixed to the valve body via a key 7 matched with a keyhole formed by the keyway and the chute.
  • the bottom end surface of the key is curved in a curved shape with the inner wall of the valve body, and the outer end of each support seat is sleeved.
  • a clip 6 is disposed, and the clip is sleeved on the fixed shaft through the middle through hole, and the limiting piece 13 bent to the valve body wall respectively corresponding to the key groove of the support seat on both sides, the limiting piece
  • the end portion is provided with a projection 14 that is inserted into the valve body sliding groove.
  • the clip When the valve piece is installed, the clip is sleeved on the fixed shaft, and the two ends of the fixed shaft and the pin shaft are respectively inserted into the support seat, and are placed in the valve body, so that the end of the support seat is convexly inserted into the inner side of the valve body.
  • the support seat is laterally fixed, and then the key is inserted into the key hole formed by the key groove at the bottom of the support seat and the sliding groove on the inner wall of the valve body to form the longitudinal fixing of the support seat, and finally the limit on the clip
  • the bit pieces are respectively bent toward the valve body wall side, so that the convex card at the end of the limiting piece is inserted into the sliding groove of the valve body, thereby preventing the key from being loosened from the key groove under the long-term flushing of the medium, thereby effectively fixing the key.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Check Valves (AREA)

Abstract

L'invention porte sur une soupape antiretour à clapets de soupape doubles qui comprend: un corps de soupape (1); une plaque porte-soupape; et un arbre fixe (4). La plaque porte-soupape est composée d'une paire de clapets de soupape semi-circulaires (2) et est reliée rotative à une tige (3) disposée sur les bords droits des clapets de soupape (2). La tige précitée (3) et l'arbre fixe (4) sont fixés dans le corps de soupape (1) au travers de plaques d'appui (5) ménagées à leurs deux extrémités respectives. Une protubérance (10) s'étendant vers l'extérieur est formée du côté inférieur de la plaque d'appui (5), à proximité de la partie d'extrémité intérieure du corps de soupape (1), et un trou de montage d'espacement (9) est ménagé dans le corps de soupape (1) dans une position qui correspond à celle de la protubérance (10), de manière qu'il peut coopérer avec cette dernière. Un passage de clé (12) est formé du côté inférieur de la plaque d'appui (5), à proximité de la partie d'extrémité extérieure du corps de soupape (1); un passage de coulissement (11) est formé dans la paroi interne du corps de soupape (1), dans une position qui correspond à celle du passage de clé (12); et la plaque d'appui (5) est reliée fixe au corps de soupape (1) via une clé (7) qui coopère avec le trou de serrure formé par le passage de clé (12) et le passage de coulissement (11).
PCT/CN2007/003178 2006-11-16 2007-11-09 Soupape antiretour à contre-serrage comprenant de clapets de soupape doubles WO2008058454A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CNU2006201253323U CN200975524Y (zh) 2006-11-16 2006-11-16 双瓣对夹式止回阀
CN200620125332.3 2006-11-16

Publications (1)

Publication Number Publication Date
WO2008058454A1 true WO2008058454A1 (fr) 2008-05-22

Family

ID=38901809

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2007/003178 WO2008058454A1 (fr) 2006-11-16 2007-11-09 Soupape antiretour à contre-serrage comprenant de clapets de soupape doubles

Country Status (2)

Country Link
CN (1) CN200975524Y (fr)
WO (1) WO2008058454A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3117840A1 (fr) * 2015-07-17 2017-01-18 Atec Pharmatechnik Gmbh Recipient de transport et de traitement comprenant une soupape a clapet et procede de vidange d'un tel recipient

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
HUE041757T2 (hu) * 2008-03-19 2019-05-28 Almeva Ag Visszacsapó szelep kazán füstgázainak kivezetésére szolgáló kivezetõ vezetékben
CN102353083A (zh) * 2011-08-15 2012-02-15 宁波方太厨具有限公司 防倒烟的油烟机出风管
CN103032608A (zh) * 2011-09-30 2013-04-10 张琦 一种止回阀
CN102588624B (zh) * 2012-03-01 2014-02-19 合肥通用机械研究院 双瓣式复合闸阀
CN104165237B (zh) * 2014-07-31 2017-02-15 章华 双瓣式止回阀
US9464724B2 (en) * 2014-08-06 2016-10-11 Hamilton Sundstrand Corporation Check valve flapper
US9476515B2 (en) * 2014-08-06 2016-10-25 Hamilton Sundstrand Corporation Check valve housing
CN104405933B (zh) * 2014-10-21 2016-10-05 江苏亿阀集团有限公司 一种基于记忆合金弹性元件的低温双瓣式止回阀
CN105626912B (zh) * 2014-11-02 2019-06-28 杨恒 一种上装式双瓣止回阀
CN106949591B (zh) * 2017-03-17 2020-01-14 深圳创维空调科技有限公司 一种风管装置及其空调装置
CN107044688B (zh) * 2017-03-17 2020-01-14 深圳创维空调科技有限公司 一种一体式空调
CN107166046B (zh) * 2017-05-03 2019-09-20 苏州纽威阀门股份有限公司 一种固定结构、双瓣式止回阀及其装配工艺
CN108506215A (zh) * 2017-09-25 2018-09-07 约克（无锡）空调冷冻设备有限公司 消音装置
CN108223851A (zh) * 2018-02-27 2018-06-29 温州威蓝阀门有限公司 一种用于止回阀的定位块
CN108487379B (zh) * 2018-04-08 2020-12-04 沈纪云 一种可连续供应大型办公区沏茶用水的净水储水箱
CN108757960A (zh) * 2018-08-20 2018-11-06 致和环境科技（江苏）有限公司 一种密闭蝶阀
CN109519420A (zh) * 2018-10-09 2019-03-26 饶银娥 一种废气吸收用水喷射真空机组

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4005732A (en) * 1975-08-25 1977-02-01 Trw Inc. Flapper valve with independent spring action
CN2149532Y (zh) * 1993-03-05 1993-12-15 郑州蝶阀厂 缓闭蝶式止回阀
US5368069A (en) * 1993-05-28 1994-11-29 Eg&G Pressure Science, Inc. Conduit joint assembly
JPH09296874A (ja) * 1996-05-01 1997-11-18 Mitsubishi Heavy Ind Ltd 逆止弁
JPH1082475A (ja) * 1996-09-09 1998-03-31 Tomoe Gijutsu Kenkyusho:Kk デュアルプレート逆止弁
CN2783072Y (zh) * 2005-02-23 2006-05-24 方达理 双夹双瓣旋启式止回阀

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4005732A (en) * 1975-08-25 1977-02-01 Trw Inc. Flapper valve with independent spring action
CN2149532Y (zh) * 1993-03-05 1993-12-15 郑州蝶阀厂 缓闭蝶式止回阀
US5368069A (en) * 1993-05-28 1994-11-29 Eg&G Pressure Science, Inc. Conduit joint assembly
JPH09296874A (ja) * 1996-05-01 1997-11-18 Mitsubishi Heavy Ind Ltd 逆止弁
JPH1082475A (ja) * 1996-09-09 1998-03-31 Tomoe Gijutsu Kenkyusho:Kk デュアルプレート逆止弁
CN2783072Y (zh) * 2005-02-23 2006-05-24 方达理 双夹双瓣旋启式止回阀

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3117840A1 (fr) * 2015-07-17 2017-01-18 Atec Pharmatechnik Gmbh Recipient de transport et de traitement comprenant une soupape a clapet et procede de vidange d'un tel recipient

Also Published As

Publication number Publication date
CN200975524Y (zh) 2007-11-14

Similar Documents

Publication Publication Date Title
WO2008058454A1 (fr) Soupape antiretour à contre-serrage comprenant de clapets de soupape doubles
CN202140632U (zh) 一种对夹双瓣止回阀
US7249611B2 (en) Check valve
CA1073780A (fr) Clapet de non retour
CA2630975A1 (fr) Support de filtre rotatif amovible
WO2001005211A3 (fr) Clapet obturateur
JP2005504932A (ja) 可変開放力しきい値を有する逆止弁
CN111810684A (zh) 一种低流阻缓闭式止回阀
CN202280924U (zh) 带锁铸钢球阀结构
WO2007056434A3 (fr) Dispositif permettant de reduire le bruit dans les regulateurs de pression
CN100365334C (zh) 平面密封三通阀
JPWO2008120349A1 (ja) 逆止弁
CN206988482U (zh) 一种压缩机的单向阀组件
JP2969444B2 (ja) デュアルプレート逆止弁
KR200448982Y1 (ko) 이중 플레이트 체크밸브
CN211398674U (zh) 双止回阀、组合阀及磁控防滴漏组合阀
US5251657A (en) Top-entry check valve with cartridge secured by projections
CA2445012A1 (fr) Crepine pour robinets thermostatiques
KR200415262Y1 (ko) 역지변 일체형 수도용 밸브
KR101031803B1 (ko) 체크밸브
CN106594331B (zh) 可靠密封的板式止回阀
CN100460730C (zh) 止回球阀
KR101149547B1 (ko) 체크밸브
KR101268980B1 (ko) 체크밸브
CN218207976U (zh) 一种具有止回功能的球阀

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 07816790

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 07816790

Country of ref document: EP

Kind code of ref document: A1