WO2014108073A1 - 活塞式单向阀 - Google Patents

活塞式单向阀 Download PDF

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Publication number
WO2014108073A1
WO2014108073A1 PCT/CN2014/070339 CN2014070339W WO2014108073A1 WO 2014108073 A1 WO2014108073 A1 WO 2014108073A1 CN 2014070339 W CN2014070339 W CN 2014070339W WO 2014108073 A1 WO2014108073 A1 WO 2014108073A1
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WO
WIPO (PCT)
Prior art keywords
valve
piston
piston rod
seat
valve body
Prior art date
Application number
PCT/CN2014/070339
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English (en)
French (fr)
Inventor
丁小洪
Original Assignee
南通欧意姆制冷设备有限公司
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 南通欧意姆制冷设备有限公司 filed Critical 南通欧意姆制冷设备有限公司
Priority to US14/343,859 priority Critical patent/US20150226346A1/en
Publication of WO2014108073A1 publication Critical patent/WO2014108073A1/zh

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
    • F16K15/06—Check valves with guided rigid valve members with guided stems
    • F16K15/063—Check valves with guided rigid valve members with guided stems the valve being loaded by a spring
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7837—Direct response valves [i.e., check valve type]
    • Y10T137/7904—Reciprocating valves
    • Y10T137/7922—Spring biased
    • Y10T137/7929—Spring coaxial with valve
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7837—Direct response valves [i.e., check valve type]
    • Y10T137/7904—Reciprocating valves
    • Y10T137/7922—Spring biased
    • Y10T137/7929—Spring coaxial with valve
    • Y10T137/7932—Valve stem extends through fixed spring abutment

Definitions

  • the utility model relates to a pipeline control device, and more particularly to a piston type one-way valve. Background technique
  • the check valve is an indispensable and important component in the refrigeration equipment. It is installed at the exhaust port of the compressor of the refrigeration equipment to prevent the compressor from reversing during shutdown or to prevent the compressor from running from the compressor. Flows into the compressor that is not running. During operation, the piston reciprocates under the action of the pressure difference to achieve the purpose of closing or opening the check valve. Since the existing one-way valve positioning relies on the reciprocating sliding of the piston with respect to the valve seat, the impurities in the medium easily block the gap between the piston and the inner wall of the valve seat, and thus the piston will appear inclined after the one-way valve is used repeatedly, and The seat is misaligned, reducing the reliability of the check valve. In addition, the vibration caused by the pressure pulse during the operation of the refrigeration equipment not only causes noise during the operation of the refrigeration equipment, but also causes mechanical wear on the refrigeration equipment and affects the service life of the equipment. Summary of the invention
  • the object of the present invention is to overcome the deficiencies of the prior art and to provide a piston type check valve that absorbs noise and reduces the service life of a refrigeration device.
  • a piston type check valve the one-way valve being composed of a valve body, a valve cover and a piston connection.
  • the valve body is provided with a cylindrical valve seat, one side of the valve seat is connected to the medium inlet, and the bottom thereof is integrally connected with the valve body, the outer side of the valve seat forms a cavity with the valve body, and communicates with the medium outlet, the upper part thereof
  • the opening is matched with a piston, the piston comprising a piston head and a piston rod, the piston head being closed or opened by a seal of the gasket and the opening of the valve seat, the valve cover protruding outwardly from a cylindrical protrusion, a cylindrical piston rod sleeve is arranged therein, and the piston rod sleeve is matched with the piston rod.
  • One end of the piston rod sleeve is provided with a spring seat connecting the valve cover, the spring seat is sleeved with a spring, and the other end of the spring sleeve is sleeved on the piston rod.
  • the port of the bonnet is horizontally connected to the annular skirt, and the inner circle of the skirt closely matches the outer circumference of the piston head and the gasket to form a closed cavity in the bonnet.
  • the end surface of the valve seat opening has a circular arc shape.
  • the center of the piston head is provided with a screw hole and a matching bolt and a gasket, and the gasket and the gasket are pressed by tightening the bolt.
  • the bottom of the valve body is provided with a mounting screw hole at the center.
  • a center of the end face of the piston rod is provided with a circular hole.
  • the valve cover is fixedly connected to the valve body by bolts.
  • Figure 1 is a cross-sectional view of a piston type check valve
  • FIG. 2 is a plan view of a piston type check valve
  • valve body 1 valve cover 2
  • valve seat 3 inlet 4, cavity 5-1, 5-2, 5_3, outlet 6, piston head 7, piston rod 8, gasket 9, piston rod
  • the sleeve 10 the spring seat 11, the spring 12, the annular skirt 13, the bolts 14_1, 14_2, the spacer 15, the mounting screw hole 16, and the circular hole 17.
  • a piston type check valve is fixedly connected to the valve cover 2 by a valve body 1 through a bolt 14-2, and the piston is placed in a cavity of the valve body 1.
  • a cylindrical valve seat 3 is disposed in the valve body 1.
  • One side of the valve seat 3 communicates with the medium inlet 4, and the bottom thereof is integrally connected with the valve body 1.
  • the outer side of the valve seat 3 forms a cavity with the valve body 1, and the medium outlet 6 communicating, the upper opening is matched with the piston, the piston comprises a piston head 7 and a piston plug 8, and the gasket 15 and the gasket 9 are fixed at the center of the end surface of the piston head 7 by the bolt 14-1, the gasket 9 and the valve seat
  • the opening seal of 3 is closed or opened, and the end face of the opening of the valve seat 3 is a circular arc shape, which facilitates the sealing of the valve seat 3 by the gasket 9.
  • a cylindrical protrusion protrudes from a center of the bonnet 2, and a cylindrical piston rod sleeve 10 is disposed therein.
  • the piston rod sleeve 10 is matched with the piston rod 8.
  • the center of the end surface of the piston book holder 8 is provided with a circular hole 17 for the advantage.
  • the piston rod sleeve 10 is closely fitted and the component of the piston rod 8 is alleviated.
  • the piston rod sleeve 10 is provided with a spring seat 11 for connecting the valve cover 2, and the spring seat 11 is sleeved with a spring 12, and the other end of the spring 12 is sleeved on the piston rod 8.
  • the port of the bonnet 2 is horizontally connected to the annular skirt 13. When the inner circumference of the skirt 13 is closely fitted with the outer circumference of the piston head 7 and the gasket 9, a closed cavity is formed in the bonnet 2.
  • the center of the bottom of the valve body 1 is provided with a mounting screw hole 16 for fixing the utility model to the refrigeration device.

Landscapes

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

Abstract

一种活塞式单向阀，由阀体（1）、阀盖（2）和活塞连接构成。阀体（1）内设有圆柱形阀座（3），阀座（3）的一侧连通介质进口（4），其底部与阀体（1）连成一体，阀座（3）的外侧与阀体（1）形成空腔，且与介质出口（6）连通，其上部开口与活塞配套，活塞包括活塞头（7）和活塞杆（8），活塞头（7）通过密封垫（9）和阀座（3）的开口密封闭合或开启，阀盖（2）中心向外突出一圆柱形凸块，其内设有圆柱形活塞杆套（10），该活塞杆套（10）与活塞杆（8）相配套，活塞杆套（10）一端设有连接阀盖（2）的弹簧座（11），弹簧座（11）上套有弹簧（12），弹簧（12）的另一端套在活塞杆（8）上，阀盖（2）的端口水平连接环形裙边（13），该裙边的内圆与活塞头（7）的外圆及密封垫（9）紧密配合，在阀盖（2）内形成一个密闭的空腔。该单向阀能够减震降噪，提高阀的使用寿命。

Description

活塞式单向阀 技术领域
[0001 ] 本实用新型涉及一种管道控制设备，更具体地说，本实用新型涉及一种活塞式单 向阀。 背景技术
[0002] 单向阀是制冷设备中不可或缺的重要配套部件，安装在制冷设备压缩机的排气口 处，用于防止停机时压缩机反转，或防止说制冷剂从运转的压缩机流到未运转的压缩机中。工 作时，活塞在压差的作用下进行往复运动，达到关闭或开启单向阀的目的。由于现有单向阀 定位依靠活塞相对阀座的往复滑动进行，介质中的杂质容易堵塞活塞与阀座内壁之间的空 隙，进而导致单向阀多次使用后，活塞会出现倾斜书，与阀座不对中，降低了单向阀的可靠性。 此外，制冷设备在运行中会因压力脉冲产生的震动，既造成制冷设备运行时的噪声，又会对 制冷设备造成机械磨损，影响设备的使用寿命。 发明内容
[0003] 本实用新型发明的目的是克服现有技术的不足，提供一种减震降噪、延长制冷设 备使用寿命的活塞式单向阀。
[0004] 本实用新型发明的目的是通过以下技术方案实现的：
[0005] 一种活塞式单向阀，所述的单向阀由阀体、阀盖和活塞连接构成。所述阀体内设有 圆柱形阀座，所述阀座的一侧连通介质进口，其底部与阀体连成一体，阀座的外侧与阀体形 成空腔，且与介质出口连通，其上部开口与活塞配套，所述的活塞包括活塞头和活塞杆，所 述的活塞头通过密封垫和阀座的开口密封闭合或开启，所述的阀盖中心向外突出一圆柱形 凸块，其内设有圆柱形活塞杆套，该活塞杆套与活塞杆相配套，活塞杆套一端设有连接阀盖 的弹簧座，弹簧座上套有弹簧，弹簧的另一端套在活塞杆上，所述阀盖的端口水平连接环形 裙边，该裙边的内圆与活塞头的外圆及密封垫紧密配合，在阀盖内形成一个密闭的空腔。
[0006] 本实用新型发明的目的还可以通过以下技术方案实现的：
[0007] 所述阀座开口的端面为圆弧形。 所述活塞头的中心设有螺孔及配套的螺栓和垫 片，通过拧紧螺栓，将垫片和密封垫压紧。所述阀体的底部中心设有安装螺孔。所述活塞杆 端面的中心设有圆孔。 所述的阀盖通过螺栓固定连接阀体。
[0008] 与现有技术相比，本实用新型具有以卜有益效果：
[0009] 1. 降低制冷设备运行时的噪音；
[0010] 2. 提高制冷设备的使用寿命。 附图说明
[001 1 ] 图 1为活塞式单向阀剖面图；
[0012] 图 2为活塞式单向阀俯视图；
[0013] 图 3为活塞式单向阀侧视图。 [0014] 图中：阀体 1、阀盖 2、阀座 3、进口 4、空腔 5-1、5-2、5_3、出口 6、活塞头 7、活塞杆 8、密封垫 9、活塞杆套 10、弹簧座 11、弹簧 12、环形裙边 13、螺栓 14_1、14_2、垫片 15、安装螺 孔 16、圆孔 17。 具体实施方式
[0015] 下面将结合附图对本实用新型的实质性内容作进一步详细描述：
[0016] 如图 1至图 3所示：一种活塞式单向阀，由阀体 1通过螺栓 14-2固定连接阀盖 2， 活塞置于阀体 1的空腔内。 阀体 1内设有圆柱形阀座 3，阀座 3的一侧连通介质进口 4，其 底部与阀体 1连成一体，阀座 3的外侧与阀体 1形成空腔，且与介质出口 6连通，其上部开 口与活塞配套，活塞包括活塞头 7和活说塞杆 8，通过螺栓 14-1将垫片 15和密封垫 9固定在 活塞头 7端面的中心，密封垫 9和阀座 3的开口密封闭合或开启，阀座 3开口的端面为圆弧 形，便于密封垫 9压实阀座 3开口。 阀盖 2中心向外突出一圆柱形凸块，其内设有圆柱形活 塞杆套 10，该活塞杆套 10与活塞杆 8相配套，活塞书杆 8端面的中心设有圆孔 17，有利紧密 配合活塞杆套 10及减轻活塞杆 8的分量。 活塞杆套 10—端设有连接阀盖 2的弹簧座 11， 弹簧座 11上套有弹簧 12，弹簧 12的另一端套在活塞杆 8上。 阀盖 2的端口水平连接环形 裙边 13，该裙边 13的内圆与活塞头 7的外圆及密封垫 9紧密配合时，在阀盖 2内形成一个 密闭的空腔。 阀体 1的底部中心设有安装螺孔 16，用以将本实用新型固定在制冷设备上。

Claims

权 利 要 求 书
1. 一种活塞式单向阀，所述的单向阀由阀体、阀盖和活塞连接构成，其特征在于：所述 阀体内设有圆柱形阀座，所述阀座的一侧连通介质进口，其底部与阀体连成一体，阀座的外 侧与阀体形成空腔，且与介质出口连通，其上部开口与活塞配套，所述的活塞包括活塞头和 活塞杆，所述的活塞头通过密封垫和阀座的开口密封闭合或开启，所述的阀盖中心向外突 出一圆柱形凸块，其内设有圆柱形活塞杆套，该活塞杆套与活塞杆相配套，活塞杆套一端设 有连接阀盖的弹簧座，弹簧座上套有弹簧，弹簧的另一端套在活塞杆上，所述阀盖的端口水 平连接环形裙边，该裙边的内圆与活塞头的外圆及密封垫紧密配合，在阀盖内形成一个密 闭的空腔。
2. 根据权利要求 1所述的一种活塞式单向阀，其特征在于：所述阀座开口的端面为圆 弧形。
3. 根据权利要求 1所述的一种活塞式单向阀，其特征在于：所述活塞头的中心设有螺 孔及配套的螺栓和垫片，通过拧紧螺栓，将垫片和密封垫压紧。
4. 根据权利要求 1所述的一种活塞式单向阀，其特征在于：所述阀体的底部中心设有 安装螺孔。
5. 根据权利要求 1所述的一种活塞式单向阀，其特征在于：所述活塞杆端面的中心设 有圆孔。
6. 根据权利要求 1所述的一种活塞式单向阀，其特征在于：所述的阀盖通过螺栓固定 连接阀体。
PCT/CN2014/070339 2013-01-08 2014-01-08 活塞式单向阀 WO2014108073A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US14/343,859 US20150226346A1 (en) 2013-01-08 2014-01-08 Piston-type one-way valve

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2013200081048U CN203051861U (zh) 2013-01-08 2013-01-08 活塞式单向阀
CN201320008104.8 2013-01-08

Publications (1)

Publication Number Publication Date
WO2014108073A1 true WO2014108073A1 (zh) 2014-07-17

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US (1) US20150226346A1 (zh)
CN (1) CN203051861U (zh)
WO (1) WO2014108073A1 (zh)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203051861U (zh) * 2013-01-08 2013-07-10 南通欧意姆制冷设备有限公司 活塞式单向阀
KR101938714B1 (ko) * 2016-08-12 2019-01-16 디에스정공(주) 버큠로리용 체크밸브
CN209680700U (zh) * 2018-06-26 2019-11-26 东莞市盛涵精密塑胶制品有限公司 一种新型的气枪
CN112066048B (zh) * 2020-09-16 2022-09-16 山东威玛装备科技股份有限公司 一种缓闭止回阀
CN113324096B (zh) * 2021-05-18 2023-01-03 哈尔滨工程大学 一种具有两级弹簧及气腔的防水锤阀

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US1912786A (en) * 1931-06-04 1933-06-06 Crane Co Removable disk valve
GB854801A (en) * 1958-01-30 1960-11-23 Acf Ind Inc Valve seat and valve closure seal
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Publication number Priority date Publication date Assignee Title
US1912786A (en) * 1931-06-04 1933-06-06 Crane Co Removable disk valve
GB854801A (en) * 1958-01-30 1960-11-23 Acf Ind Inc Valve seat and valve closure seal
DE2924304A1 (de) * 1979-06-15 1980-12-18 Eckardt Ag Stellventil
CN2120942U (zh) * 1992-04-05 1992-11-04 蒋立功 一种升降式单向止回阀
CN201396490Y (zh) * 2009-05-10 2010-02-03 方云 止回阀
CN201764039U (zh) * 2010-07-19 2011-03-16 浙江艾迪西流体控制股份有限公司 自止逆截止阀
CN203051861U (zh) * 2013-01-08 2013-07-10 南通欧意姆制冷设备有限公司 活塞式单向阀

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