CN221591854U - A swing check valve structure - Google Patents
A swing check valve structure Download PDFInfo
- Publication number
- CN221591854U CN221591854U CN202420249080.3U CN202420249080U CN221591854U CN 221591854 U CN221591854 U CN 221591854U CN 202420249080 U CN202420249080 U CN 202420249080U CN 221591854 U CN221591854 U CN 221591854U
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- China
- Prior art keywords
- wall
- fixedly connected
- valve body
- check valve
- connecting shaft
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- Expired - Fee Related
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Abstract
The utility model relates to the technical field of check valves and discloses a swing check valve structure, which comprises a valve body, wherein the outer wall of the valve body is fixedly connected with a liquid inlet pipe, the outer wall of the liquid inlet pipe is fixedly connected with a connecting block, the inner wall of the connecting block is fixedly connected with a first connecting shaft, the outer wall of the first connecting shaft is rotationally connected with a pressing hand, the inner wall of the pressing hand is rotationally connected with a second connecting shaft, the outer wall of the second connecting shaft is fixedly connected with a first fixing rod, the outer wall of the first fixing rod is slidably connected with a second fixing rod, the outer wall of the first fixing rod is fixedly connected with a first limiting plate, the outer wall of the second fixing rod is slidably connected with the inner wall of the first limiting plate, and the outer wall of the second fixing rod is fixedly connected with a second limiting plate. In the utility model, the pressing hand is pushed to enable the fixed rod connected with the second connecting shaft to move towards the valve body, so that the second fixed rod is tensioned and is stably clamped on the convex block of the pipeline, and the effects of convenient installation, disassembly and maintenance of the check valve are achieved.
Description
Technical Field
The utility model relates to the technical field of check valves, in particular to a swing check valve structure.
Background
The swing check valve is an automatic valve and has the main function of preventing the medium in the pipeline from flowing back and ensuring the normal operation of the system. The opening and closing part of such valves is usually composed of one or more flaps and these flaps are pivoted, which means that when the direction of flow of the medium changes, the flaps automatically rotate to prevent backflow.
The searched bulletin number is: the Chinese patent literature of CN220268513U discloses a swing check valve structure, which comprises a valve body, wherein a water inlet and a water outlet are respectively arranged on two sides of the valve body, a valve shaft is arranged on one side, close to the water inlet, of the valve body, a valve clack is connected through the valve shaft, a flange plate is arranged at the top end of the valve body, a cover plate is connected to the flange plate, a fixed block is further arranged on the inner side of the top of the valve body, a locking mechanism is arranged in the fixed block in a hollow mode, and a locking mechanism is arranged on the fixed block; according to the utility model, the locking mechanism is arranged, the cover plate is opened by a worker, the movable plate can be driven to rotate by rotating the screw rod, and the valve clack is pushed to be completely closed, so that the purpose of forced closure through manual regulation is realized. However, the above patent has some problems, such as the problem that the check valve switch cannot be controlled manually is only solved in the patent, but the problem that the check valve switch cannot be installed by using bolts or flanges when in use, the installation process is troublesome, and the check valve switch is difficult to disassemble and assemble for maintenance is solved.
Disclosure of utility model
In order to make up for the defects, the utility model provides a swing check valve structure, which aims to solve the problems that bolts or flanges are needed to be used for installation in the prior art, the installation process is troublesome, and the disassembly and the overhaul are difficult.
In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a swing check valve structure, includes the valve body, the outer wall fixedly connected with feed liquor pipe of valve body, the outer wall fixedly connected with connecting block of feed liquor pipe, the inner wall fixedly connected with connecting axle one of connecting block, the outer wall rotation of connecting axle one is connected with the press hand, the inner wall rotation of press hand is connected with connecting axle two, the outer wall fixedly connected with dead lever one of connecting axle two, the outer wall sliding connection of dead lever one has dead lever two, the outer wall fixedly connected with spacing piece one of dead lever one, the outer wall sliding connection of dead lever two is in the inner wall of spacing piece one, the outer wall fixedly connected with spacing piece two of dead lever two, the outer wall sliding connection of dead lever one is in the outer wall of spacing piece two, the outer wall of dead lever one outer wall all overlaps of dead lever two is equipped with the spring, the one end fixedly connected with of spring is in the outer wall of spacing piece one, the inner wall of valve body is provided with check subassembly.
As a further description of the above technical solution:
the check assembly comprises a fixed block, the outer wall of the fixed block is fixedly connected with the inner wall of the valve body, the outer wall of the fixed block is rotationally connected with a connecting shaft, and the outer wall of the valve body is fixedly connected with a liquid outlet pipe.
As a further description of the above technical solution:
the outer wall fixedly connected with connecting rod of connecting axle, the outer wall fixedly connected with valve of connecting rod, the outer wall setting of valve is in the inner wall of feed liquor pipe.
As a further description of the above technical solution:
The outer wall fixedly connected with connecting rod of connecting axle, the outer wall fixedly connected with balancing weight of connecting rod, the inner wall of connecting rod is provided with the swivel bead.
As a further description of the above technical solution:
the outer wall fixedly connected with fixed plate of valve body, the outer wall fixedly connected with protective housing of fixed plate, the inside fixedly connected with of protective housing advances the pipe, the outer wall fixedly connected with of advancing the pipe is in the inside of advance liquid pipe, the inside fixedly connected with exit tube of protective housing.
As a further description of the above technical solution:
the outer wall fixed connection of exit tube is in the inside of fixed plate, the outer wall fixed connection of exit tube is in the inside of valve body, the inner wall sliding connection of protective housing has the baffle, the last fixedly connected with push rod of baffle.
As a further description of the above technical solution:
the top of valve body fixed connection is in the outer wall of changeing the pearl, the outer wall cover of push rod is equipped with the pushing spring, the outer wall sliding connection of push rod is in the inner wall of protective housing.
As a further description of the above technical solution:
The top fixed connection of pushing away the spring is in the inner wall of protective housing, the bottom fixed connection of pushing away the spring is in the upper surface of baffle.
The utility model has the following beneficial effects:
1. According to the check valve, the groove on the second fixing rod is clamped on the convex block on the side wall of the pipeline, then the pressing hand is pushed to enable the fixing rod connected with the second connecting shaft to move towards the valve body, the first fixing rod pulls the spring, and the spring pulls the second limiting piece and the fixing rod to move towards the valve body, so that the second fixing rod is tensioned and stably clamped on the convex block of the pipeline, the first limiting piece and the limiting piece are pushed to move towards two sides by the elasticity of the spring, the first fixing rod and the second fixing rod are enabled to be firmer, and the check valve can be conveniently installed, detached and overhauled.
2. In the utility model, when the pressure of the liquid inlet pipe is smaller than the pressure of the liquid outlet pipe and the valve cannot be closed, fluid above the baffle plate pushes the baffle plate to move downwards, the pushing spring rebounds to push the baffle plate to move downwards, so that the connecting rod connected with the push rod and the rotating bead moves downwards, the balancing weight drives the connecting rod to move downwards, the connecting shaft connected with the connecting rod drives the connecting rod and the valve to rotate, the liquid inlet pipe is sealed, the fluid is prevented from flowing back, and the effect of the check valve is enhanced.
Drawings
FIG. 1 is a perspective view of a swing check valve structure according to the present utility model;
FIG. 2 is a schematic view of the internal structure of a valve body of a swing check valve according to the present utility model;
FIG. 3 is an enlarged view of FIG. 2 at A;
Fig. 4 is a split view of a connection block structure of a swing check valve structure according to the present utility model.
Legend description:
1. A valve body; 2. a fixing plate; 3. a liquid inlet pipe; 4. a liquid outlet pipe; 5. a fixed block; 6. a valve; 7. a connecting rod; 8. a connecting shaft; 9. a connecting rod; 10. balancing weight; 11. a protective shell; 12. feeding a pipe; 13. a baffle; 14. a pipe outlet; 15. a push rod; 16. rotating the beads; 17. a connecting block; 18. pressing the hands; 19. a first connecting shaft; 20. a second connecting shaft; 21. a first fixed rod; 22. a first limiting piece; 23. a spring; 24. a second limiting piece; 25. a second fixing rod; 26. pushing the spring.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1 and 4, one embodiment provided by the present utility model is: the utility model provides a swing check valve structure, including valve body 1, the outer wall fixedly connected with feed liquor pipe 3 of valve body 1, the outer wall fixedly connected with connecting block 17 of feed liquor pipe 3, the inner wall fixedly connected with connecting axle one 19 of connecting block 17, the outer wall rotation of connecting axle one 19 is connected with press hand 18, the inner wall rotation of press hand 18 is connected with connecting axle two 20, the outer wall fixedly connected with dead lever one 21 of connecting axle two 20, the outer wall sliding connection of dead lever one 21 has dead lever two 25, the outer wall fixedly connected with spacing piece one 22 of dead lever one 21, the outer wall sliding connection of dead lever two 25 is at the inner wall of spacing piece one 22, the outer wall fixedly connected with spacing piece two 24 of dead lever two 25, the outer wall sliding connection of dead lever one 21 and the outer wall of dead lever two 25 all overlap and are equipped with spring 23, the one end fixedly connected at the outer wall of spacing piece two 24 of spring 23, the other end fixedly connected at the outer wall of spacing piece one 22 of spring 23, the inner wall of valve body 1 is provided with the check assembly;
Specifically, the pipeline is aligned to the liquid inlet pipe 3 and the liquid outlet pipe 4, the correct direction of the pipeline is ensured, then, the groove on the second fixing rod 25 is aligned to the convex block on the side wall of the pipeline, this is in order to ensure that the check valve can be stably fixed on the pipeline after being installed, liquid backflow is prevented, then, the first pressing hand 18 is pushed along the direction of the liquid inlet pipe 3 and the liquid outlet pipe 4, in the process of pushing the first pressing hand 18, the second fixing rod 21 is driven by the second connecting shaft 20 to move towards the valve body 1, in the process, the first fixing rod 21 can pull the spring 23, the second limiting plate 24 and the second fixing rod 25 are pulled towards the valve body 1 while the spring 23 is contracted, after the process is finished, the second fixing rod 25 can be stably clamped on the convex block of the pipeline, the stability and reliability of the installation of the check valve are ensured, meanwhile, the first limiting plate 22 and the second limiting plate 24 are pushed to move towards two sides by the elasticity of the spring 23, the check valve can be firmly fixed on the pipeline, the check valve can be smoothly installed in the pipeline system, and the check valve can be easily removed from the pipeline system by the design, and the check valve can be easily replaced or replaced when the check valve is required to be easily removed.
Referring to fig. 2, the non-return assembly comprises a fixed block 5, wherein the outer wall of the fixed block 5 is fixedly connected with the inner wall of the valve body 1, the outer wall of the fixed block 5 is rotatably connected with a connecting shaft 8, and the outer wall of the valve body 1 is fixedly connected with a liquid outlet pipe 4; the outer wall of the connecting shaft 8 is fixedly connected with a connecting rod 7, the outer wall of the connecting rod 7 is fixedly connected with a valve 6, and the outer wall of the valve 6 is arranged on the inner wall of the liquid inlet pipe 3; the outer wall of the connecting shaft 8 is fixedly connected with a connecting rod 9, the outer wall of the connecting rod 9 is fixedly connected with a balancing weight 10, and the inner wall of the connecting rod 9 is provided with a rotating bead 16;
specifically, the liquid inlet pipe 3 is connected to one end of the valve 6, the connecting rod 7 and the connecting shaft 8 are used for controlling the movement of the valve 6, when the fluid pressure on one side of the liquid inlet pipe 3 is greater than that on one side of the liquid outlet pipe 4, the valve 6 is pushed by the fluid to move, at this time, the connecting rod 7 and the connecting shaft 8 play roles in limiting the movement track of the valve 6, the valve 6 and the connecting rod 7 can only rotate around the connecting shaft 8 due to the limitation, so that effective control of the fluid is realized, in addition, the check valve drives the connecting rod 9 and the balancing weight 10 to move through the connecting shaft 8, the design makes the valve 6 require larger fluid pressure when being opened, so that the use safety is improved, and meanwhile, the automatic driving of the balancing weight 10 drives the movement of the connecting rod 9 and the connecting shaft 8, so that the valve 6 connected with the connecting rod 7 is more stable in sealing of the liquid inlet pipe 3, and in summary, the check valve realizes effective control and safety protection of the fluid through the unique design and precise structure thereof.
Referring to fig. 2 and 3, the outer wall of the valve body 1 is fixedly connected with a fixing plate 2, the outer wall of the fixing plate 2 is fixedly connected with a protecting shell 11, the inside of the protecting shell 11 is fixedly connected with a pipe inlet 12, the outer wall of the pipe inlet 12 is fixedly connected with the inside of the liquid inlet pipe 3, and the inside of the protecting shell 11 is fixedly connected with a pipe outlet 14; the outer wall of the outlet pipe 14 is fixedly connected in the fixed plate 2, the outer wall of the outlet pipe 14 is fixedly connected in the valve body 1, the inner wall of the protective shell 11 is slidably connected with a baffle 13, and the upper surface of the baffle 13 is fixedly connected with a push rod 15; the top end of the valve body 1 is fixedly connected to the outer wall of the rotating ball 16, a push spring 26 is sleeved on the outer wall of the push rod 15, and the outer wall of the push rod 15 is slidably connected to the inner wall of the protective shell 11; the top end of the push spring 26 is fixedly connected with the inner wall of the protective shell 11, and the bottom end of the push spring 26 is fixedly connected with the upper surface of the baffle 13;
Specifically, when the pressure in the feed liquor pipe 3 is smaller than the pressure in the drain pipe 4, and the valve 6 can not completely seal the feed liquor pipe 3 under the action of fluid, the fluid above the baffle 13 can push the valve clack to move downwards through the pipe 14, meanwhile, the spring 23 can push the valve clack to move downwards due to the resilience force after compression, so that the valve clack is tightly attached to the valve seat to form a seal, in addition, the connecting rod 9 connected with the rotating bead 16 can move downwards along with the downward movement of the valve clack, under the condition, the balancing weight 10 can drive the connecting rod 9 to move downwards, the sealing effect on the valve seat is further enhanced, the valve 6 can smoothly rotate through the connection of the connecting rod 9 and the valve rod, and the sealing of the feed liquor pipe 3 is realized, so that the swing check valve can effectively prevent the fluid in the drain pipe 4 from flowing backwards, the valve 6 can be well sealed on the feed liquor pipe 3 under various working conditions, and the design can ensure that the swing check valve has higher reliability in terms of preventing the backflow of the fluid, and the safety and the stability of a pipeline system are greatly improved.
Working principle: when needs use a swing check valve structure, place the check valve in the position that needs the installation, aim at feed liquor pipe 3 and drain pipe 4 with the pipeline, recess card on dead lever two 25 is on the lug of pipeline lateral wall again, will press the hand 18 to feed liquor pipe 3 and drain pipe 4 promotion, drive the dead lever one 21 that connecting axle two 20 are connected through pressing the hand 18 and remove through dead lever one 21 pulling spring 23 to the direction of valve body 1, make spring 23 can pull spacing piece two 24 and dead lever two 25 also to valve body 1 in the shrink simultaneously, thereby take up dead lever two 25, make dead lever two 25 can stably block on the lug of pipeline, thereby make dead lever one 22 and spacing piece two 25 fix more firmly simultaneously, thereby install the check valve conveniently, and conveniently dismantle the maintenance to the check valve, when pipeline inside pressure is less than the inside of drain pipe 4, and valve 6 can not carry out the sealing washer 13 under the effect of valve 6 effect under the effect to the connecting rod 3 and can't carry out the sealing washer 13 to the connecting rod 9 under the sealing washer 13, thereby prevent that the connecting rod 9 from moving to the connecting rod 9, prevent that the connecting rod 9 from moving down to the connecting rod 9 from moving to the connecting rod 9, prevent that the connecting rod 9 from moving back-flow, thereby, the effect is better, the effect is reached.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.
Claims (8)
1. The utility model provides a swing check valve structure, includes valve body (1), its characterized in that: the outer wall of the valve body (1) is fixedly connected with a liquid inlet pipe (3), the outer wall of the liquid inlet pipe (3) is fixedly connected with a connecting block (17), the inner wall of the connecting block (17) is fixedly connected with a first connecting shaft (19), the outer wall of the first connecting shaft (19) is rotationally connected with a pressing hand (18), the inner wall of the pressing hand (18) is rotationally connected with a second connecting shaft (20), the outer wall of the second connecting shaft (20) is fixedly connected with a first fixing rod (21), the outer wall of the first fixing rod (21) is slidably connected with a second fixing rod (25), the outer wall of the first fixing rod (21) is fixedly connected with a first limiting plate (22), the outer wall sliding connection of dead lever two (25) is in the inner wall of spacing piece one (22), the outer wall fixedly connected with spacing piece two (24) of dead lever two (25), the outer wall sliding connection of dead lever one (21) is in the outer wall of spacing piece two (24), dead lever one (21) outer wall with the outer wall of dead lever two (25) all overlaps and is equipped with spring (23), the one end fixed connection of spring (23) is in the outer wall of spacing piece two (24), the other end fixed connection of spring (23) is in the outer wall of spacing piece one (22), the inner wall of valve body (1) is provided with check subassembly.
2. A swing check valve structure according to claim 1, wherein: the check assembly comprises a fixed block (5), the outer wall of the fixed block (5) is fixedly connected with the inner wall of the valve body (1), the outer wall of the fixed block (5) is rotationally connected with a connecting shaft (8), and the outer wall of the valve body (1) is fixedly connected with a liquid outlet pipe (4).
3. A swing check valve structure according to claim 2, wherein: the outer wall fixedly connected with connecting rod (7) of connecting axle (8), the outer wall fixedly connected with valve (6) of connecting rod (7), the outer wall setting of valve (6) is in the inner wall of feed liquor pipe (3).
4. A swing check valve structure according to claim 3, wherein: the outer wall fixedly connected with connecting rod (9) of connecting axle (8), the outer wall fixedly connected with balancing weight (10) of connecting rod (9), the inner wall of connecting rod (9) is provided with changeing pearl (16).
5. The swing check valve structure according to claim 4, wherein: the utility model discloses a liquid inlet valve, including valve body (1), fixed plate (2) of outer wall fixedly connected with of valve body (1), the outer wall fixedly connected with protective housing (11) of fixed plate (2), the inside fixedly connected with of protective housing (11) advances tub (12), the outer wall fixedly connected with of advance tub (12) is in the inside of feed liquor pipe (3), the inside fixedly connected with exit tube (14) of protective housing (11).
6. The swing check valve structure according to claim 5, wherein: the outer wall fixed connection of exit tube (14) is in the inside of fixed plate (2), the outer wall fixed connection of exit tube (14) is in the inside of valve body (1), the inner wall sliding connection of protective housing (11) has baffle (13), the upper surface fixedly connected with push rod (15) of baffle (13).
7. The swing check valve structure according to claim 6, wherein: the top of the valve body (1) is fixedly connected to the outer wall of the rotating ball (16), a pushing spring (26) is sleeved on the outer wall of the push rod (15), and the outer wall of the push rod (15) is slidably connected to the inner wall of the protective shell (11).
8. The swing check valve structure according to claim 7, wherein: the top of the pushing spring (26) is fixedly connected to the inner wall of the protective shell (11), and the bottom of the pushing spring (26) is fixedly connected to the upper surface of the baffle plate (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420249080.3U CN221591854U (en) | 2024-02-01 | 2024-02-01 | A swing check valve structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420249080.3U CN221591854U (en) | 2024-02-01 | 2024-02-01 | A swing check valve structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221591854U true CN221591854U (en) | 2024-08-23 |
Family
ID=92412891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420249080.3U Expired - Fee Related CN221591854U (en) | 2024-02-01 | 2024-02-01 | A swing check valve structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221591854U (en) |
-
2024
- 2024-02-01 CN CN202420249080.3U patent/CN221591854U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20240823 |