CN203477476U - Rotating-off type check valve - Google Patents

Rotating-off type check valve Download PDF

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Publication number
CN203477476U
CN203477476U CN201320612741.6U CN201320612741U CN203477476U CN 203477476 U CN203477476 U CN 203477476U CN 201320612741 U CN201320612741 U CN 201320612741U CN 203477476 U CN203477476 U CN 203477476U
Authority
CN
China
Prior art keywords
valve
rotating shaft
valve body
rotating
flap
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
CN201320612741.6U
Other languages
Chinese (zh)
Inventor
金柏强
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BAIQIANG VALVE GROUP Co Ltd
Original Assignee
BAIQIANG VALVE GROUP 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 BAIQIANG VALVE GROUP Co Ltd filed Critical BAIQIANG VALVE GROUP Co Ltd
Priority to CN201320612741.6U priority Critical patent/CN203477476U/en
Application granted granted Critical
Publication of CN203477476U publication Critical patent/CN203477476U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model relates to a rotating-off type check valve. The rotating-off type check valve comprises a valve body, a valve clack, a valve cover and a rocker. A valve seat is arranged on a channel opening in the inlet side of the valve body, the valve clack and the valve seat are provided with sealing faces which are matched with each other, and the back face of the valve clack is connected with one end of the rocker. The rotating-off type check valve is characterized in that the other end of the rocker is fixedly connected with a rotating shaft, the two ends of the rotating shaft are respectively installed inside a shaft hole in the upper side of a valve body channel through a bearing in a sealed mode, one end of the rotating shaft extends out of the valve body and is fixedly connected with a heavy punch mechanism, the valve clack is connected with the heavy punch mechanism through the rotating shaft, the sealing force between the valve clack and the valve seat is improved, and the sealing performance is good. The rotating-off type check valve is suitable for being used a control valve on a one-way flow medium pipeline to prevent medium backflow.

Description

Swing check valve
Technical field
The utility model relates to valve field, specifically about a kind of Swing check valve.
Background technique
Safety check is on one-way flow medium pipeline, to be used for preventing the control valve that medium flows backwards, Swing check valve is one of the most general structure, its structure comprises valve body, flap, valve gap, rocking arm, valve body inlet passage mouth is provided with valve seat, flap and valve seat have the sealing surface cooperatively interacting, the flap back side is connected with rocking arm one end, and the other end of rocking arm is connected with rotating shaft, and rotating shaft is arranged in valve body.During forward medium, pressure medium promotes flap and opens, and during backpressure, flap is closed under deadweight and reverse media pressure-acting, prevents medium reverse flow.Its major defect is that flap relies on deadweight and reverse media pressure and valve seat press seal, and under low piezodielectric operating mode, sealing force is little, poor sealing performance, and easily leaks.
Summary of the invention
The purpose of this utility model is the shortcoming existing for prior art, provides that a kind of sealing force is large, the reliable Swing check valve of sealability.
The technical solution of the utility model comprises valve body, flap, valve gap, rocking arm, valve body suction side passway is provided with valve seat, flap and valve seat have the sealing surface cooperatively interacting, the flap back side is connected with rocking arm one end, it is characterized in that the rocking arm the other end is fixedly connected with rotating shaft, rotating shaft two ends are arranged in the axis hole of valve channel upside by bearing seal respectively, and rotating shaft one end is stretched out valve body outside and is fixedly connected with heavy hammer mechanism.
In above technological scheme, the valve pocket inwall of valve outlet passage is provided with block.
The utility model has the advantages that flap connects heavy hammer mechanism by rotating shaft, increase the sealing force between flap and valve seat, good seal performance.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Swing check valve as shown in Figure 1, comprise valve body 1, flap 2, valve gap 4, rocking arm 3, valve body 1 suction side passway is provided with valve seat, flap 2 has with valve seat the sealing surface cooperatively interacting, flap 2 back sides are connected with rocking arm 3 one end, rocking arm 3 the other ends are fixedly connected with rotating shaft 7, rotating shaft 7 two ends are arranged in the axis hole of valve body 1 passage upside by bearing seal respectively, rotating shaft 7 can be rotated freely in axis hole, rotating shaft 7 one end are stretched out valve body 1 outside and are fixedly connected with heavy hammer mechanism 5, when flap 2 is closed, the weight of heavy hammer mechanism 5 increases the sealing force between flap 2 and valve seat, improve sealability, particularly improve the medium-tight performance under low pressure operating mode.The valve pocket inwall of valve body 1 outlet passage is provided with block 6, the lifting position of these block 6 restriction flaps 2.

Claims (2)

1. a Swing check valve, comprise valve body (1), flap (2), valve gap (4), rocking arm (3), valve body (1) suction side passway is provided with valve seat, flap (2) has with valve seat the sealing surface cooperatively interacting, flap (2) back side is connected with rocking arm (3) one end, it is characterized in that rocking arm (3) the other end is fixedly connected with rotating shaft (7), rotating shaft (7) two ends are arranged in the axis hole of valve body (1) passage upside by bearing seal respectively, and rotating shaft (7) one end is stretched out valve body (1) outside and is fixedly connected with heavy hammer mechanism (5).
2. Swing check valve according to claim 1, is characterized in that the valve pocket inwall of valve body (1) outlet passage is provided with block (6).
CN201320612741.6U 2013-09-25 2013-09-25 Rotating-off type check valve Expired - Fee Related CN203477476U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320612741.6U CN203477476U (en) 2013-09-25 2013-09-25 Rotating-off type check valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320612741.6U CN203477476U (en) 2013-09-25 2013-09-25 Rotating-off type check valve

Publications (1)

Publication Number Publication Date
CN203477476U true CN203477476U (en) 2014-03-12

Family

ID=50225807

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320612741.6U Expired - Fee Related CN203477476U (en) 2013-09-25 2013-09-25 Rotating-off type check valve

Country Status (1)

Country Link
CN (1) CN203477476U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106931194A (en) * 2015-12-31 2017-07-07 中国核动力研究设计院 A kind of check-valves that valve flap structure is opened with low voltage difference
CN108139092A (en) * 2015-09-25 2018-06-08 三星电子株式会社 Dehumidifier
CN112145710A (en) * 2019-06-28 2020-12-29 中国舰船研究设计中心 Titanium alloy exhaust flap valve

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108139092A (en) * 2015-09-25 2018-06-08 三星电子株式会社 Dehumidifier
CN108139092B (en) * 2015-09-25 2020-11-10 三星电子株式会社 Dehumidifier
CN106931194A (en) * 2015-12-31 2017-07-07 中国核动力研究设计院 A kind of check-valves that valve flap structure is opened with low voltage difference
CN112145710A (en) * 2019-06-28 2020-12-29 中国舰船研究设计中心 Titanium alloy exhaust flap valve
CN112145710B (en) * 2019-06-28 2022-04-08 中国舰船研究设计中心 Titanium alloy exhaust flap valve

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Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140312

Termination date: 20200925

CF01 Termination of patent right due to non-payment of annual fee