CN210141347U - Prevent round pin axle card and hinder swing check valve - Google Patents
Prevent round pin axle card and hinder swing check valve Download PDFInfo
- Publication number
- CN210141347U CN210141347U CN201920711884.XU CN201920711884U CN210141347U CN 210141347 U CN210141347 U CN 210141347U CN 201920711884 U CN201920711884 U CN 201920711884U CN 210141347 U CN210141347 U CN 210141347U
- Authority
- CN
- China
- Prior art keywords
- valve body
- hole
- valve
- rocker
- round pin
- 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.)
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Links
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 claims 1
- 239000012535 impurity Substances 0.000 abstract description 4
- 239000008187 granular material Substances 0.000 abstract description 2
- 230000007774 longterm Effects 0.000 abstract description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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- Check Valves (AREA)
Abstract
The utility model provides a prevent round pin axle card and hinder swing check valve, which comprises a valve body, the valve clack, valve gap and rocker, the round pin shaft hole has been seted up to the position side of the choke top of valve body, the round pin shaft hole is the through-hole on a lateral wall of valve body, be the slotted hole of seting up to the valve body outside from the valve body inner chamber on another lateral wall of valve body, the round pin axle penetrates in the round pin shaft hole, the round pin epaxial of one end of rocker wears to establish at the round pin of valve body cavity section is epaxial, it is epaxial to sell to open the lateral wall clearance that has the through-hole on rocker and valve body and open the lateral wall clearance endotheca that has the slotted hole on rocker and valve body and. The utility model discloses simple structure, processing is convenient, sets up the dish type spring in valve body and rocker joint gap, prevents that impurity or granule in the long-term use medium from getting into the clearance between axle sleeve and round pin axle, avoids because the valve clack that the round pin axle card hinders and arouses can not resume the leakage that the action caused of closing.
Description
Technical Field
The utility model relates to a valve field especially relates to a prevent round pin axle card and hinder swing check valve.
Background
The check valve is used for preventing the backflow of the medium in the pipeline. When the medium in the pipeline flows in the forward direction, the valve clack of the check valve automatically opens under the action of the medium force, and when the medium in the pipeline flows in the reverse direction, the valve clack automatically closes under the action of the medium force. Swing check valves are one of the most commonly used check valves. At present, impurities or particles enter between a pin shaft of a connecting rocker arm penetrating through a valve body and the valve body after the swing check valve designed and produced in the society is used for a long time, and the impurities or the particles enter a pin shaft hole of the valve body and then block the pin shaft to rotate, so that the opening and closing actions of the valve clack are influenced, and the hidden danger of leakage exists.
Disclosure of Invention
The utility model provides a solve above-mentioned problem, provide one kind can reduce and leak the hidden danger and prevent the swing check valve that the round pin axle card hinders.
The utility model discloses the technical scheme who takes:
a rotary-opening check valve preventing pin shaft from being blocked comprises a valve body, a valve clack, a valve cover and a rocker, wherein a pin shaft hole is formed in the side face of the valve body above a throttling opening, the pin shaft hole is a through hole in one side wall of the valve body, a groove hole is formed in the other side wall of the valve body from the inner cavity of the valve body to the outer side of the valve body, a pin shaft penetrates through the pin shaft hole, one end of the rocker penetrates through the pin shaft in the inner cavity section of the valve body, a disc-shaped spring is sleeved in a side wall gap formed by the rocker and the valve body and provided with a groove hole, a screw is arranged outside the through hole formed by the pin shaft in the valve body in a penetrating manner and connected with a screw plug in a threaded plugging manner, a ball head hole and a screw head are formed in one side, opposite to the plugging face, the throttling opening of the inner cavity of the valve body is provided with a sealing ring corresponding to the contact position of the plugging surface of the valve clack and the valve body, the top of the valve body is connected with a valve cover through a bolt, and the middle of the top of the valve cover is connected with a lifting ring.
The contact position of the screw plug root and the outer side wall of the valve body through hole is sleeved with a gasket.
The threaded head is provided with a pin hole, the nut is provided with a round hole corresponding to the pin hole of the threaded head, and a cotter pin is inserted into the round hole of the nut and the pin hole of the threaded head.
The utility model has the advantages that: the utility model discloses simple structure, processing is convenient, sets up the dish type spring in valve body and rocker joint gap, prevents that impurity or granule in the long-term use medium from getting into the clearance between axle sleeve and round pin axle, avoids because the valve clack that the round pin axle card hinders and arouses can not resume the leakage that the action caused of closing.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of a pin hole formed in the valve body.
Fig. 3 is a schematic view of a portion of a structure shown in fig. 2.
Fig. 4 is a schematic view of a partial structure at B in fig. 2.
Wherein: 1-a valve body; 2-sealing ring; 3-valve clack; 4-a rocker; 5-a ball head; 6-thread head; 7-a nut; 8-cotter pin; 9-a pin shaft; 10-valve cover; 11-a hoisting ring; 12-a bolt; 13-a slot; 14-a through hole; 15-a plug screw; 16-a gasket; 17-disc spring.
Detailed Description
A rotary-opening check valve preventing pin shaft from being blocked comprises a valve body 1, a valve clack 3, a valve cover 10 and a rocker 4, wherein a pin shaft hole is formed in the side surface of the position above a throttling port of the valve body 1, the pin shaft hole is a through hole 14 on one side wall of the valve body 1, a slotted hole 13 formed from an inner cavity of the valve body 1 to the outer side of the valve body 1 is formed in the other side wall of the valve body 1, a pin shaft 9 penetrates into the pin shaft hole, one end of the rocker 4 is arranged on the pin shaft 9 of the inner cavity section of the valve body 1 in a penetrating manner, a disc-shaped spring 17 is sleeved in a side wall gap formed by the rocker 4 and the valve body 1 and a slotted hole 13 formed in the rocker 4 and the valve body 1, the outer side of the through hole 14 formed by the pin shaft 9 on the valve body 1 is provided with a thread, the thread plug 15 is connected with a thread plug in a thread plugging manner, the other end of the rocker 4, the ball 5 is arranged in a ball hole of the rocker 4 in a penetrating manner, the threaded head 6 is connected with a nut 7 in a threaded manner, a sealing ring 2 is arranged at the contact position of the throttling port of the inner cavity of the valve body 1, which corresponds to the plugging surface of the valve clack 3, and the valve body 1, a top bolt 12 of the valve body 1 is connected with a valve cover 10, and the middle of the top of the valve cover 10 is connected with a hanging ring 11.
And a gasket 16 is sleeved at the contact position of the root of the screw plug 15 and the outer side wall of the through hole 14 of the valve body 1.
The threaded head 6 is provided with a pin hole, the nut 7 is provided with a round hole corresponding to the pin hole of the threaded head 6, and a cotter pin 8 is inserted into the round hole of the nut 7 and the pin hole of the threaded head 6.
When the device is used, an upstream medium flows to the position of a throttling opening of a valve body 1 to push a valve clack 3 and a swing rod 4 to swing and swing, the swing rod 4 rotates to open the valve clack 3 by taking a pin shaft 9 as a rotating center, the downstream medium flows in the direction of the valve body 1, the valve clack 3 returns to the state that the valve clack 3 blocks the throttling opening under the action of the driving force of the medium and the gravity of the downstream medium, when the device is used for a long time, the medium easily enters a pin shaft hole from a gap formed by connecting a rocker 4 and the pin shaft 9 to influence the rotation flexibility of the pin shaft 9, when the resistance is greater than the driving force of the downstream medium and the gravity of the downstream medium, the valve clack 3 cannot block or cannot act in time, leakage occurs, but disc springs 17 are sleeved in side wall gaps formed by through holes 14 formed in the rocker 4 and the valve body 1 and in side wall gaps formed by slotted holes 13 formed in the, avoiding the generation of leakage.
While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention, and should not be considered as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.
Claims (3)
1. A rotary-opening check valve capable of preventing pin shaft from blocking is characterized by comprising a valve body (1), a valve clack (3), a valve cover (10) and a rocker (4), wherein a pin shaft hole is formed in the side face of the position above a throttling opening of the valve body (1), the pin shaft hole is a through hole (14) in one side wall of the valve body (1), a groove hole (13) formed in the other side wall of the valve body (1) from the inner cavity of the valve body (1) to the outer side of the valve body (1) is provided, a pin shaft (9) penetrates through the pin shaft hole, one end of the rocker (4) is arranged on a pin shaft (9) in the inner cavity section of the valve body (1) in a penetrating manner, a disc-shaped spring (17) is sleeved in a side wall gap formed by the through hole (14) in the rocker (4) and the valve body (1) and in a side wall gap formed by the groove hole (13) in the rocker (4) and the valve body (1), threads are formed in, and the screw thread shutoff is connected with plug screw (15), the bulb hole has been seted up to the other end of rocker (4), one side integrated into one piece that carries on the back with the shutoff face on the valve clack (3) has connected gradually bulb (5) and screw thread head (6), bulb (5) are worn to establish in the bulb hole of rocker (4), threaded connection nut (7) are gone up in screw thread head (6), the shutoff face that the choke of valve body (1) inner chamber corresponds valve clack (3) is equipped with sealing washer (2) with valve body (1) contact position, valve gap (10) are connected to top bolt (12) of valve body (1), the top intermediate junction of valve gap (10) has rings (11).
2. The anti-pin-jamming swing check valve according to claim 1, characterized in that a gasket (16) is sleeved at the contact position of the root of the plug screw (15) and the outer side wall of the through hole (14) of the valve body (1).
3. The anti-pin-jamming swing check valve according to claim 1, characterized in that the screw head (6) is provided with a pin hole, the nut (7) is provided with a round hole corresponding to the pin hole of the screw head (6), and a cotter pin (8) is inserted into the round hole of the nut (7) and the pin hole of the screw head (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920711884.XU CN210141347U (en) | 2019-05-17 | 2019-05-17 | Prevent round pin axle card and hinder swing check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920711884.XU CN210141347U (en) | 2019-05-17 | 2019-05-17 | Prevent round pin axle card and hinder swing check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210141347U true CN210141347U (en) | 2020-03-13 |
Family
ID=69733906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920711884.XU Active CN210141347U (en) | 2019-05-17 | 2019-05-17 | Prevent round pin axle card and hinder swing check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210141347U (en) |
-
2019
- 2019-05-17 CN CN201920711884.XU patent/CN210141347U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No. 169 Hangkong Road, Tianjin Binhai New Area Pilot Free Trade Zone (Airport Economic Zone), 300300 Patentee after: Tianjin Zhongtian Nuclear Technology Industry Co.,Ltd. Country or region after: China Address before: No. 169 Hangkong Road, Tianjin Binhai New Area Pilot Free Trade Zone (Airport Economic Zone), 300300 Patentee before: TIANJIN ZHONGHE SCIENCE & TECHNOLOGY INDUSTRIAL CO.,LTD. Country or region before: China |
|
| CP03 | Change of name, title or address |