CN215110708U - Check valve clack fixing device - Google Patents
Check valve clack fixing device Download PDFInfo
- Publication number
- CN215110708U CN215110708U CN202120332318.5U CN202120332318U CN215110708U CN 215110708 U CN215110708 U CN 215110708U CN 202120332318 U CN202120332318 U CN 202120332318U CN 215110708 U CN215110708 U CN 215110708U
- Authority
- CN
- China
- Prior art keywords
- valve clack
- threaded rod
- check valve
- rocking arm
- valve
- 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
Links
- 239000000956 alloy Substances 0.000 claims description 5
- 229910045601 alloy Inorganic materials 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
Images
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- Check Valves (AREA)
Abstract
The utility model discloses a check valve clack fixing device relates to check valve technical field, including check valve body (1), valve clack (2) and rocking arm (3), the front of valve clack (2) sets up the side at check valve body (1), the back of valve clack (2) is provided with prevents that cotter (4) and threaded rod (6), prevent that cotter (4) insert valve clack (2) and rocking arm (3) simultaneously, rocking arm (3) are worn out to the end that valve clack (2) and rocking arm (3) and threaded rod (6) are inserted simultaneously in threaded rod (6), the end of threaded rod (6) is connected with nut (5). The utility model has the advantages of stable connection between the rocker arm (3) and the valve clack (2), wear resistance, long service life and high stability.
Description
Technical Field
The utility model relates to a check valve technical field, especially a check valve clack fixing device.
Background
The check valve is a valve with a circular valve clack and acts by self weight and medium pressure to block the medium from flowing backwards. It belongs to the automatic valve category, also called check valve, reflux valve or isolation valve. The valve clack motion mode is divided into lifting type and swing type. The lifting check valve is similar to a stop valve in structure, only a valve rod for driving a valve clack is lacked, a medium flows in from an inlet end (lower side) and flows out from an outlet end (upper side), and when the inlet pressure is greater than the sum of the weight of the valve clack and the flow resistance of the valve clack, the valve is opened; otherwise, the valve is closed when the medium flows backwards. Swing check valves have a flap that is tilted and can pivot, and operate on a similar principle to lift check valves. The check valve is commonly used as a bottom valve of a water pump and can prevent the backflow of water. However, in the existing swing check valve, the valve flap and the rocker arm are only connected through a bolt, for example, patent No. CN202020469635.7 discloses a single-flap swing check valve special for gas, in which the valve flap and the rocker arm are connected through a bolt, but in the long-time operation of the check valve, the connection between the rocker arm and the valve flap is loosened or even falls off due to long-time erosion and scouring of water flow, which seriously affects the normal use of the check valve.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's shortcoming, provide a rocking arm and valve clack stable in connection, durable wear's a check valve clack fixing device.
The purpose of the utility model is realized through the following technical scheme: the utility model provides a check valve clack fixing device, includes check valve body, valve clack and rocking arm, the front of valve clack sets up the side at the check valve body, the back of valve clack is provided with stop pin and threaded rod, stop pin inserts valve clack and rocking arm simultaneously, the end that the threaded rod inserted valve clack and rocking arm and threaded rod simultaneously wears out the rocking arm, the end of threaded rod is connected with the nut.
Preferably, the back surface of the valve clack is provided with a pin hole.
Preferably, the back of the valve flap is provided with a circular groove of the same type for connection with a threaded rod.
Preferably, the threaded rod is cylindrical, and only the head portion is provided with a thread,
preferably, an alloy cushion block is arranged at the joint of the rocker arm and the threaded rod.
The utility model has the advantages of it is following: rocking arm and valve clack pass through the rotation-proof pin connection, and both are fixed relatively, and the valve clack can not be at the inside rotation of valve body, reduces the wearing and tearing in valve clack and rocking arm hole, and the junction of rocking arm and threaded rod sets up the alloy pad simultaneously and also can play and prevent the rocking arm wearing and tearing soon, improves the life of check valve, improves system safe operation reliability.
Drawings
Fig. 1 is a schematic structural view of the present invention;
in the figure: 1-check valve body, 2-valve clack, 3-rocker arm, 4-anti-rotation pin, 5-nut, 6-threaded rod and 7-alloy cushion block.
Detailed Description
The invention will be further described with reference to the accompanying drawings, but the scope of the invention is not limited to the following description.
As shown in fig. 1, a check valve clack fixing device, including check valve body 1, valve clack 2 and rocking arm 3, the front of valve clack 2 sets up the side at check valve body 1, pinhole and circular recess have been opened at the back of valve clack 2, inserted respectively in pinhole and the circular recess and prevented that cotter 4 and threaded rod 6, and prevent that cotter 4 from inserting valve clack 2 and rocking arm 3 simultaneously, prevent that valve clack 2 and rocking arm 3 from taking place relative displacement, and valve clack 2 can not be inside rotatory at the valve body, reduces the wearing and tearing of valve clack 2 and rocking arm 3 junction, rocking arm 3 is worn out to the end that valve clack 2 and rocking arm 3 and threaded rod 6 were inserted simultaneously to threaded rod 6, and the end of threaded rod 6 is provided with the screw thread simultaneously, connects nut 5 in the upper end of threaded rod 6 through threaded connection, through nut 5 and threaded rod 6 rocker arm 3 and valve clack 2 fixed connection.
Preferably, the back of the valve clack 2 is provided with a circular groove of the same type for connecting with the threaded rod 6, so that the threaded rod 6 can be tightly inserted into the valve clack 2.
Preferably, the threaded rod 6 is cylindrical and only the head portion is provided with a thread, the unthreaded portion being tightly inserted into the flap 2 and the rocker arm 3.
Preferably, the alloy cushion block 7 is arranged at the joint of the rocker arm 3 and the threaded rod 6, so that the abrasion of the rocker arm 3 can be reduced, and the service life is prolonged.
Claims (5)
1. A check valve clack fixing device which characterized in that: including check valve body (1), valve clack (2) and rocking arm (3), the front of valve clack (2) sets up the side at check valve body (1), the back of valve clack (2) is provided with prevents that cotter (4) and threaded rod (6), prevent that cotter (4) inserts valve clack (2) and rocking arm (3) simultaneously, rocking arm (3) is worn out to the end that valve clack (2) and rocking arm (3) and threaded rod (6) were inserted simultaneously in threaded rod (6), the end of threaded rod (6) is connected with nut (5), the junction of rocking arm (3) and threaded rod (6) is provided with alloy cushion (7).
2. The check valve flap retainer according to claim 1, wherein: the back of the valve clack (2) is provided with a pin hole.
3. The check valve flap retainer according to claim 1, wherein: the back of the valve clack (2) is provided with a circular groove of the same type which is used for being connected with the threaded rod (6).
4. The check valve flap retainer according to claim 1, wherein: the threaded rod (6) is cylindrical.
5. The check valve flap retainer according to claim 1, wherein: only the end part of the threaded rod (6) is provided with threads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120332318.5U CN215110708U (en) | 2021-02-05 | 2021-02-05 | Check valve clack fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120332318.5U CN215110708U (en) | 2021-02-05 | 2021-02-05 | Check valve clack fixing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215110708U true CN215110708U (en) | 2021-12-10 |
Family
ID=79334446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120332318.5U Expired - Fee Related CN215110708U (en) | 2021-02-05 | 2021-02-05 | Check valve clack fixing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215110708U (en) |
-
2021
- 2021-02-05 CN CN202120332318.5U patent/CN215110708U/en not_active Expired - Fee Related
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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: 20211210 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |