CN214466344U - Valve clack mounting structure of swing check valve - Google Patents
Valve clack mounting structure of swing check valve Download PDFInfo
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- CN214466344U CN214466344U CN202120576092.3U CN202120576092U CN214466344U CN 214466344 U CN214466344 U CN 214466344U CN 202120576092 U CN202120576092 U CN 202120576092U CN 214466344 U CN214466344 U CN 214466344U
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Abstract
The utility model discloses a valve clack mounting structure of a swing check valve, which comprises a support ring arranged in a valve body, wherein the support ring is rotationally connected with the end part of a swing rod through a pin shaft, and the swing rod is connected to the valve clack and drives the valve clack to rotate to open and close; the valve body is characterized in that a split ring is arranged above the support ring, a fixing groove matched with the split ring is formed in the inner wall of the valve body, the split ring is embedded in the fixing groove from the side face to fix the support ring, and a positioning pin is arranged below the support ring and connected to the valve body for positioning. The utility model arranges the support ring in the valve body, so that the pin shaft is connected to the valve body through the support ring, and the support ring is embedded into the valve body through the mounting boss and the split ring of the valve body and fixed, thereby preventing longitudinal movement; the positioning pin at the bottom of the supporting ring is connected to the valve body to prevent rotation; adjusting sleeves are arranged on two sides of the rotating hole in the pin shaft, the relative position of the swing rod and the valve body is adjusted, the butt joint precision of the valve clack and the valve seat is further adjusted, and a better sealing effect is achieved.
Description
Technical Field
The utility model relates to a valve clack mounting structure especially relates to a swing check valve's valve clack mounting structure.
Background
The swing check valve is generally assembled with a rocker pin shaft in a mode of opening a valve body, and an outer leakage point is increased. Or the hook is installed in a mode of casting the boss on the body, the hook is connected with the valve body through the bolt, the rocker arm and the pin shaft are connected to the valve body through the hook, and the assembly precision of the rocker arm and the pin shaft can be influenced due to the fact that the hook is fastened with the valve body through the bolt, and therefore the closing precision of the valve clack is influenced. Therefore, the prior art has yet to be improved.
Disclosure of Invention
The to-be-solved technical problem of the utility model is to provide a valve clack mounting structure of swing check valve, rocking arm and round pin axle are connected to the valve body through the support ring, improve assembly precision and assembly qualification rate.
The technical scheme adopted by the utility model for solving the technical problems is to provide a valve clack mounting structure of a swing check valve, which comprises a support ring arranged in a valve body, wherein the support ring is rotationally connected with the end part of a swing rod through a pin shaft, and the swing rod is connected to the valve clack and drives the valve clack to rotate to open and close; the valve body is characterized in that a split ring is arranged above the support ring, a fixing groove matched with the split ring is formed in the inner wall of the valve body, the split ring is embedded in the fixing groove from the side face to fix the support ring, and a positioning pin is arranged below the support ring and connected to the valve body for positioning.
Further, the outer diameter of the top of the support ring is larger than the outer diameter of the bottom of the support ring, an installation step is formed on the outer wall of the support ring, an installation boss matched with the installation step is arranged on the inner wall of the valve body, and the support ring is arranged on the installation boss.
Furthermore, the split ring is an arc-shaped block which is formed by dividing a whole ring into two parts and then processing the two parts, the outer diameter of the split ring is larger than the outer diameter of the top of the support ring, and the inner diameter of the split ring is larger than the inner diameter of the support ring and smaller than the outer diameter of the bottom of the support ring.
Further, the support ring and the split ring are fixedly connected through bolts.
Furthermore, the side wall of the support ring is provided with a pin shaft fixing hole matched with the pin shaft, the end part of the swing rod is provided with a rotating hole, and the swing rod is sleeved on the pin shaft through the rotating hole and rotates along the pin shaft.
Further, a shaft sleeve is arranged in the rotating hole, and the rotating hole is sleeved on the pin shaft through the shaft sleeve.
Furthermore, adjusting sleeves are arranged on two sides of the rotating hole in the pin shaft, and the relative position of the oscillating rod and the valve body is adjusted by adjusting the width of each adjusting sleeve.
Furthermore, a valve clack mounting hole is formed in the swing rod, a connecting shaft matched with the valve clack mounting hole is arranged on the valve clack, the connecting shaft penetrates through the valve clack mounting hole and is locked through a nut, matched positioning holes are formed in the valve clack and the swing rod, and an anti-rotation pin is arranged in the positioning holes.
Furthermore, the end part of the swing rod, which is close to the valve clack mounting hole, is provided with an anti-collision buffering bulge, and the height of the anti-collision buffering bulge is greater than that of the nut.
Furthermore, the bottom of one side of the support ring, which is far away from the pin shaft, is provided with an avoiding notch.
The utility model discloses contrast prior art has following beneficial effect: the utility model provides a valve clack mounting structure of swing check valve sets up the support ring in the valve body, makes the round pin axle be connected to the valve body through the support ring, and the support ring is fixed through the installation boss of valve body and split ring embedding valve body in vertical direction, prevents longitudinal movement; the positioning pin at the bottom of the supporting ring is connected to the valve body to prevent rotation, and the fixing is firm and reliable; the oscillating bar is connected with the pin shaft through the shaft sleeve, so that the rotating friction force is reduced, and the service life is long; adjusting sleeves are arranged on two sides of the rotating hole in the pin shaft, the relative position of the swing rod and the valve body is adjusted, the butt joint precision of the valve clack and the valve seat is further adjusted, and a better sealing effect is achieved.
Drawings
Fig. 1 is a schematic view illustrating a valve flap mounting structure of a swing check valve according to an embodiment of the present invention mounted in a valve body;
FIG. 2 is a schematic view of a support ring according to an embodiment of the present invention;
FIG. 3 is a top view of the valve flap mounting structure mounted in the valve body according to the embodiment of the present invention;
FIG. 4 is a schematic view of the installation of the swing link and the valve flap in the embodiment of the present invention;
fig. 5 is a schematic structural view of a swing check valve adopting a valve flap mounting structure in an embodiment of the present invention.
In the figure:
1. a valve body; 3. positioning pins; 4. a support ring; 5. a pin shaft; 6. a shaft sleeve; 13. a bolt; 14. opening the ring; 15. a nut; 16. a swing rod; 17. an anti-rotation pin; 18. a valve flap; 19. an adjusting sleeve; 20. the anticollision buffers the protruding.
Detailed Description
The invention is further described with reference to the following figures and examples.
Fig. 1 is the installation schematic diagram of the valve clack mounting structure of the swing check valve in the embodiment of the present invention in the valve body.
Referring to fig. 1, the valve flap mounting structure of the swing check valve according to the embodiment of the present invention includes a support ring 4 disposed in a valve body 1, the support ring 4 is rotatably connected to an end of a swing rod 16 through a pin 5, and the swing rod 16 is connected to a valve flap 18 and drives the valve flap 18 to rotate to open and close; the valve body is characterized in that a split ring 14 is arranged above the support ring 4, a fixing groove matched with the split ring 14 is formed in the inner wall of the valve body 1, the split ring 14 is embedded in the fixing groove from the side face to fix the support ring 4, a positioning pin 3 is arranged below the support ring 4, and the positioning pin 3 is connected to the valve body 1 for positioning.
Please refer to fig. 2 simultaneously, the embodiment of the utility model provides a valve clack mounting structure of swing check valve, support ring 4's top external diameter is greater than the bottom external diameter and is formed with the installation step at support ring 4 outer wall, 1 inner wall of valve body is provided with the installation boss that matches with the installation step, support ring 4 sets up on the installation boss.
Preferably, the bottom of the side of the support ring 4 away from the pin 5 is provided with an avoidance notch, which reserves a space for the rotation of the swing rod 16.
Specifically, the split ring 14 is an arc-shaped block formed by dividing a whole ring into two parts and then processing the two parts, the outer diameter of the split ring 14 is larger than the outer diameter of the top of the support ring 4, and the inner diameter of the split ring 14 is larger than the inner diameter of the support ring 4 and smaller than the outer diameter of the bottom of the support ring 4. The support ring 4 is fixedly connected with the split ring 14 by bolts 13. The split ring 14 fixes the support ring 4 to prevent the support ring 4 from moving up and down.
Specifically, the side wall of the support ring 4 is provided with a pin shaft fixing hole matched with the pin shaft 5, the end part of the swing rod 16 is provided with a rotating hole, and the swing rod 16 is sleeved on the pin shaft 5 through the rotating hole and rotates along the pin shaft 5.
Preferably, a shaft sleeve 6 is arranged in the rotating hole, and the rotating hole is sleeved on the pin shaft 5 through the shaft sleeve 6. The shaft sleeve 6 is made of aluminum bronze material, when the valve clack 18 is opened or closed, the shaft sleeve 6 reduces the friction force between the oscillating bar 16 and the oscillating bar 16 when the oscillating bar 16 rotates back and forth, and the service life is prolonged.
Please refer to fig. 3 simultaneously, the embodiment of the present invention provides a valve clack mounting structure of swing check valve, the two sides of the rotation hole on the pin 5 are provided with an adjusting sleeve 19, and the width of the adjusting sleeve 19 adjusts the relative position between the swing rod 16 and the valve body 1 to ensure the valve clack 18 and the valve seat sealing surface size of the valve body 1 to be butted accurately and matched accurately, so as to achieve better sealing effect.
Referring to fig. 4, in the valve flap mounting structure of the swing check valve according to the embodiment of the present invention, a valve flap mounting hole is formed on the swing rod 16, the valve flap 18 is provided with a connecting shaft matched with the valve flap mounting hole, and the connecting shaft passes through the valve flap mounting hole and is locked by the nut 15, so that the valve flap 18 and the anti-rotation pin 17 are prevented from being separated from the swing rod 16; the valve clack 18 and the swing rod 16 are provided with matched positioning holes, and an anti-rotation pin 17 is arranged in the positioning holes to prevent the valve clack 18 from freely rotating relative to the swing rod 16. The end part of the swing rod 16 close to the valve clack mounting hole is provided with an anti-collision buffer bulge 20, the height of the anti-collision buffer bulge 20 is larger than that of the nut 15, and when the valve clack 18 is in an open state, the anti-collision buffer bulge 20 firstly contacts with the valve body 1 for buffering.
Referring to fig. 5, in the valve clack mounting structure of the swing check valve according to the embodiment of the present invention, the support ring 4 mounted in the valve body connects the pin shaft 5 and the swing rod 16, so that the external leakage point of the valve is reduced compared with the way of assembling the pin shaft by opening the hole in the valve body, and the structural stability is improved compared with the way of connecting the pin shaft by mounting the hook on the body casting boss; the self-centering of the valve clack 18 is realized through the adjusting sleeves 19 arranged on the two sides of the swing rod 16 on the pin shaft 5, and the assembling precision and the assembling qualified rate are improved.
To sum up, in the valve flap mounting structure of the swing check valve according to the embodiment of the present invention, the support ring 4 is disposed in the valve body 1, so that the pin 5 is connected to the valve body 1 through the support ring 4, and the support ring 4 is embedded into the valve body 1 and fixed through the mounting boss of the valve body 1 and the split ring 14 in the vertical direction, so as to prevent longitudinal movement; the positioning pin 3 at the bottom of the support ring 4 is connected to the valve body 1 to prevent rotation, and the fixing is firm and reliable; the swing rod 16 is connected with the pin shaft 5 through the shaft sleeve 6, so that the rotating friction force is reduced, and the service life is long; adjusting sleeves 19 are arranged on two sides of a rotating hole on the pin shaft 5, the relative position of the swing rod 16 and the valve body 1 is adjusted, and then the butt joint precision of the valve clack 18 and the valve seat is adjusted, so that a better sealing effect is achieved.
Although the present invention has been described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. The valve clack mounting structure of the swing check valve is characterized by comprising a support ring arranged in a valve body, wherein the support ring is rotatably connected with the end part of a swing rod through a pin shaft, and the swing rod is connected to the valve clack and drives the valve clack to rotate to open and close; the valve body is characterized in that a split ring is arranged above the support ring, a fixing groove matched with the split ring is formed in the inner wall of the valve body, the split ring is embedded in the fixing groove from the side face to fix the support ring, and a positioning pin is arranged below the support ring and connected to the valve body for positioning.
2. The valve flap mounting structure of the swing check valve according to claim 1, wherein the support ring has a top outer diameter greater than a bottom outer diameter and is formed with a mounting step on an outer wall thereof, the valve body inner wall is provided with a mounting boss matching the mounting step, and the support ring is disposed on the mounting boss.
3. The structure of mounting a valve flap of a swing check valve according to claim 2, wherein the split ring is an arc-shaped piece that is processed after being divided into two halves from one whole ring, and an outer diameter of the split ring is larger than an outer diameter of a top portion of the support ring, and an inner diameter of the split ring is larger than an inner diameter of the support ring and smaller than an outer diameter of a bottom portion of the support ring.
4. The valve flap mounting structure of the swing check valve according to claim 3, wherein the support ring and the split ring are fixedly coupled by a bolt.
5. The structure of claim 1, wherein the side wall of the support ring is provided with a pin fixing hole matching the pin, and the end of the swing link is provided with a rotation hole, and the swing link is fitted over the pin through the rotation hole and rotated along the pin.
6. The structure of claim 5, wherein a shaft sleeve is disposed in the rotation hole, and the rotation hole is fitted over the pin shaft via the shaft sleeve.
7. The structure of claim 1, wherein an adjusting sleeve is provided on both sides of the rotation hole of the pin, and the relative position of the swing link and the valve body is adjusted by adjusting the width of the adjusting sleeve.
8. The structure of claim 1, wherein the swing link is provided with a valve flap mounting hole, the valve flap is provided with a connecting shaft matched with the valve flap mounting hole, the connecting shaft passes through the valve flap mounting hole and is locked by a nut, the valve flap and the swing link are provided with matching positioning holes, and an anti-rotation pin is provided in the positioning hole.
9. The structure of mounting a valve flap of a swing check valve according to claim 8, wherein the swing link is provided at an end portion thereof adjacent to the valve flap mounting hole with a crash cushion protrusion having a height greater than that of the nut.
10. The structure of claim 1, wherein a bottom of a side of the support ring away from the pin is provided with an escape notch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120576092.3U CN214466344U (en) | 2021-03-22 | 2021-03-22 | Valve clack mounting structure of swing check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120576092.3U CN214466344U (en) | 2021-03-22 | 2021-03-22 | Valve clack mounting structure of swing check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214466344U true CN214466344U (en) | 2021-10-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120576092.3U Active CN214466344U (en) | 2021-03-22 | 2021-03-22 | Valve clack mounting structure of swing check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214466344U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114517848A (en) * | 2022-01-20 | 2022-05-20 | 上海高中压阀门股份有限公司 | Novel check valve |
-
2021
- 2021-03-22 CN CN202120576092.3U patent/CN214466344U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114517848A (en) * | 2022-01-20 | 2022-05-20 | 上海高中压阀门股份有限公司 | Novel check valve |
| CN114517848B (en) * | 2022-01-20 | 2024-03-26 | 上海高中压阀门股份有限公司 | Novel check valve |
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