CN220452801U - Hard sealing check valve - Google Patents
Hard sealing check valve Download PDFInfo
- Publication number
- CN220452801U CN220452801U CN202321183861.9U CN202321183861U CN220452801U CN 220452801 U CN220452801 U CN 220452801U CN 202321183861 U CN202321183861 U CN 202321183861U CN 220452801 U CN220452801 U CN 220452801U
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- Prior art keywords
- valve
- rod
- sealing
- plate
- spring
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Links
- 238000007789 sealing Methods 0.000 title claims abstract description 51
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 230000007246 mechanism Effects 0.000 claims abstract description 15
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 11
- 239000010959 steel Substances 0.000 claims abstract description 11
- 238000007493 shaping process Methods 0.000 claims description 6
- 238000005299 abrasion Methods 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 230000009471 action Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000002955 isolation Methods 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 230000009916 joint effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Check Valves (AREA)
Abstract
The utility model discloses a hard sealing check valve, which belongs to the technical field of valve equipment and comprises a valve pipe, a second spring and a valve cavity, wherein two ends of the valve cavity are fixedly connected with the valve pipe and communicated with the valve pipe, a check mechanism is arranged in the valve cavity and comprises a fixing frame, a first water through hole, a mounting plate, a second water through hole, a main rod, an auxiliary rod, a first auxiliary spring, a first spring, a buffer cushion and a sealing mechanism. The sealing mechanism has the beneficial effects that the valve plate is more stable and accurate in moving direction due to the arrangement of the positioning rod and the positioning boss, gaps are not easy to appear between the valve plate and the valve cavity after long-time use, meanwhile, the sealing steel ring and the sealing ring are adopted to plug in between the valve plate and the valve cavity, so that the sealing performance of the valve is better, gaps are not easy to appear after long-time use and abrasion, the service life of the valve is longer, and meanwhile, the shock-proof pad is adopted, so that the valve plate is not easy to crack due to collision after long-time use.
Description
Technical Field
The utility model relates to the technical field of valve equipment, in particular to a hard sealing check valve.
Background
The check valve is a valve with a circular valve clack as an opening and closing part and can stop the medium from flowing backwards by the action of the self weight and the medium pressure. Belongs to automatic valves, which are also called check valves, one-way valves, reflux valves or isolation valves. The movement modes of the valve clack are divided into a lifting type and a swing type. The lifting check valve is similar to a stop valve in structure, and only lacks a valve rod for driving the valve clack. The medium flows in from the inlet end (lower side) and flows out from the outlet end (upper side). When the inlet pressure is greater than the sum of the valve flap weight and its flow resistance, the valve is opened. Otherwise, the valve is closed when the medium flows backwards. The swing check valve has a valve clack which is inclined and can rotate around the shaft, and the working principle is similar to that of the lifting check valve. Check valves are commonly used as bottom valves for pumping devices to prevent backflow of water. The check valve and the stop valve are combined for use, so that the safety isolation function can be realized.
The check valve in the prior art is usually sealed by a simple rubber pad, has poor sealing performance, is easy to abrade and deform under the action of friction and water pressure after long-time use, and further has poor sealing effect, and is easy to cause medium backflow.
Disclosure of Invention
To solve the problems set forth in the background art. The utility model provides a hard sealing check valve which is provided with a sealing mechanism and is used for solving the problems that the sealing performance is poor, and a rubber pad is easy to wear and deform under the action of friction and water pressure after long-time use, so that the sealing effect is poor and the medium is easy to flow back.
The technical scheme of the utility model is as follows: the hard sealing check valve comprises a valve pipe, a second spring and a valve cavity, wherein two ends of the valve cavity are fixedly connected with the valve pipe and communicated with the valve pipe, a check mechanism is arranged in the valve cavity and comprises a fixing frame, a first water through hole, a mounting plate, a second water through hole, a main rod, an auxiliary rod, a first auxiliary spring, a first spring, a buffer cushion and a sealing mechanism, the sealing mechanism comprises a valve plate, a fixing plate, a buffer ball block, a positioning rod, a shock-proof pad, a positioning boss, a sealing steel ring and a sealing ring, the fixing plate is fixedly arranged in the valve plate, the buffer ball block is fixedly arranged on one side outer wall of the valve plate, the shock-proof pad is embedded in one side wall of the valve plate, the positioning boss is fixedly arranged on one side of the shock-proof pad, the sealing steel ring and the sealing ring are all inserted into one side wall of the valve cavity, and the positioning boss and the positioning rod are inserted into one side wall of the valve cavity.
Further, an installation flange is fixedly connected to the outer side of one end of the valve pipe, and an installation hole is formed in the outer edge of the installation flange.
Furthermore, the buffer ball block is hemispherical in shape, a plurality of groups of positioning bosses and positioning rods are arranged, the buffer ball block is distributed in a circumferential shape by taking the horizontal central line of the valve plate as the center of a circle, and the sealing steel ring is movably contacted with the sealing ring.
Further, mount fixed mounting is on the inner wall of valve pocket, the inside at the mount is offered to first water hole is fixed, mobile jib and auxiliary rod are all movably pegged graft in the inside of mount, one end and one side fixed connection of mounting panel of mobile jib and auxiliary rod, the other end and one side fixed connection of valve plate of mobile jib and auxiliary rod, the inside of mounting panel is equipped with the second water hole.
Further, the first auxiliary spring is movably sleeved on the outer side of the auxiliary rod and is positioned on one side of the fixing frame, and the first spring is movably sleeved on the outer side of the auxiliary rod and is positioned on the other side of the fixing frame.
Further, the second spring is movably sleeved on the outer side of the main rod and is positioned on one side of the fixing frame, and the buffer cushion is movably sleeved on the outer side of the main rod and is positioned on the other side of the fixing frame.
The present utility model provides a hard seal check valve herein by way of improvement which has the following improvements and advantages over the prior art:
firstly, through being equipped with sealing mechanism, it makes the valve plate more stable accurate through being provided with locating lever and location boss when removing the direction, be difficult for making the valve plate appear the gap after long-time use between valve plate and the valve pocket, adopt simultaneously to peg graft between sealing steel ring and the sealing washer to valve plate and the valve pocket, make the leakproofness of valve better, after long-time use wearing and tearing, be difficult for appearing the gap, make the life of valve longer, adopt the shock pad simultaneously, make the valve plate after long-time use, the valve plate is difficult for appearing the crack because of the collision, adopt the shaping board simultaneously, make the valve plate be difficult for because of the hydraulic pressure effect under the valve plate deformation appear.
Drawings
The utility model is further explained below with reference to the drawings and examples:
FIG. 1 is a schematic perspective view of the present utility model;
FIG. 2 is a schematic cross-sectional view of the present utility model;
FIG. 3 is a schematic front view of the present utility model;
FIG. 4 is a schematic side view of the holder of the present utility model;
reference numerals illustrate: 1. a valve tube; 2. a mounting flange; 3. a mounting hole; 4. a valve plate; 5. a fixing frame; 6. a first water through hole; 7. a vibration-proof pad; 8. shaping plates; 9. buffering ball blocks; 10. sealing the steel ring; 11. a seal ring; 12. a positioning rod; 13. positioning the boss; 14. a valve cavity; 15. a first auxiliary spring; 16. an auxiliary lever; 17. a first spring; 18. a cushion pad; 19. a main rod; 20. a second spring; 21. a second water through hole; 22. and (3) mounting a plate.
Detailed Description
The following detailed description of the present utility model will provide clear and complete description of the technical solutions of the embodiments of the present utility model, with reference to fig. 1 to 4, and it is obvious that the described embodiments 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.
The utility model provides a hard sealing check valve through improvement, as shown in figures 1-4, the hard sealing check valve comprises a valve pipe 1, a second spring 20 and a valve cavity 14, wherein two ends of the valve cavity 14 are fixedly connected with the valve pipe 1 and communicated with each other, a check mechanism is arranged in the valve cavity 14 and comprises a fixing frame 5, a first water through hole 6, a mounting plate 22, a second water through hole 21, a main rod 19, an auxiliary rod 16, a first auxiliary spring 15, a first spring 17, a buffer cushion 18 and a sealing mechanism, the fixing frame 5 is fixedly arranged on the inner wall of the valve cavity 14, the first water through hole 6 is fixedly arranged in the fixing frame 5, the main rod 19 and the auxiliary rod 16 are movably inserted into the fixing frame 5, the joint action of the auxiliary rod 16 and the main rod 19 is adopted, the movement of a valve plate 4 is more stable, one ends of the main rod 19 and the auxiliary rod 16 are fixedly connected with one side of the mounting plate 22, the other ends of the main rod 19 and the auxiliary rod 16 are fixedly connected with one side of the valve plate 4, a second water through hole 21 is arranged in the mounting plate 22, the first water through hole 6 and the second water through hole 21 are convenient for medium circulation, the first auxiliary spring 15 is movably sleeved on the outer side of the auxiliary rod 16 and is positioned on one side of the fixing frame 5, the first spring 17 is movably sleeved on the outer side of the auxiliary rod 16 and is positioned on the other side of the fixing frame 5, the first auxiliary spring 15 and the second spring 20 are convenient for timely resetting of the valve plate 4, the second spring 20 is movably sleeved on the outer side of the main rod 19 and is positioned on one side of the fixing frame 5, the buffer cushion 18 is movably sleeved on the outer side of the main rod 19, the first spring 17 and the buffer cushion 18 prevent collision between the mounting plate 22 and the fixing frame 5, the valve is protected, and the medium flows in from the left side of the valve tube 1 and then impacts the valve plate 4 when the valve is positioned on the other side of the fixing frame 5, under the action of the medium pressure, the valve plate 4 moves, so that the medium flows into the valve pipe 1 at the other side, and then the medium flows, after the medium flows, the valve plate 4 is reset under the action of the first auxiliary spring 15 and the second spring 20, and when the medium flows in from the valve pipe 1 at the other side, the valve plate 4 does not move, and then the medium does not flow.
The sealing mechanism comprises a valve plate 4, a shaping plate 8, a buffer ball 9, a positioning rod 12, a shock-absorbing pad 7, a positioning boss 13, a sealing steel ring 10 and a sealing ring 11, wherein the shaping plate 8 is fixedly installed inside the valve plate 4, the buffer ball 9 is fixedly installed on the outer wall of one side of the valve plate 4, the shock-absorbing pad 7 is embedded inside one side wall of the valve plate 4, the positioning boss 13 is fixedly installed on one side of the shock-absorbing pad 7, the positioning rod 12 is fixedly installed on one side of the positioning boss 13, the sealing steel ring 10 and the sealing ring 11 are fixedly installed on one side of the shock-absorbing pad 7, the sealing steel ring 10 and the sealing ring 11 are inserted inside one side wall of the valve cavity 14, the positioning boss 13 and the positioning rod 12 are inserted inside one side wall of the valve cavity 14, the buffer ball 9 is hemispherical, the buffer ball 9 causes less damage to the valve plate 4 during circulation of media, pressure to the valve plate 4 during circulation is facilitated, the positioning boss 13 and the positioning rod 12 are provided with multiple groups, and the horizontal center line of the valve plate 4 is circumferentially distributed, and the sealing steel ring 10 and the sealing ring 11 are movably contacted.
One end outside fixedly connected with mounting flange 2 of valve pipe 1, the inside mounting hole 3 that opens in outer fringe department of mounting flange 2, the staff is when installing the valve, and accessible fixing bolt screw thread installs in mounting hole 3, installs mounting flange 2 to suitable position.
Standard parts used in the utility model can be purchased from the market, special-shaped parts can be customized according to the description of the specification and the drawings, the specific connection modes of all parts adopt conventional means such as mature bolts, rivets and welding in the prior art, the machinery, the parts and the equipment adopt conventional modes in the prior art, and the circuit connection adopts conventional connection modes in the prior art, so that details are not described in detail in the specification, and the utility model belongs to the prior art known to the person skilled in the art.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. The hard sealing check valve comprises a valve pipe (1), a second spring (20) and a valve cavity (14), and is characterized in that: the two ends of the valve cavity (14) are fixedly connected with the valve tube (1) and communicated with each other, a check mechanism is arranged in the valve cavity (14), the check mechanism comprises a fixing frame (5), a first water through hole (6), a mounting plate (22), a second water through hole (21), a main rod (19), an auxiliary rod (16), a first auxiliary spring (15), a first spring (17), a buffer pad (18) and a sealing mechanism, the sealing mechanism comprises a valve plate (4), a shaping plate (8), a buffer ball block (9), a positioning rod (12), a vibration-proof pad (7), a positioning boss (13), a sealing ring (10) and a sealing ring (11), the shaping plate (8) is fixedly arranged in the valve plate (4), the buffer ball block (9) is fixedly arranged on one side outer wall of the valve plate (4), the gasket (7) is embedded in one side wall of the valve plate (4), the positioning boss (13) is fixedly arranged on one side of the vibration-proof pad (7), the positioning rod (12) is fixedly arranged on one side of the positioning boss (13), the sealing ring (10) is fixedly arranged on one side of the vibration-proof pad (7), the sealing ring (11) and the sealing ring (10) is fixedly connected with the sealing ring (11) on one side of the valve cavity (14) in an inserting mode, the positioning boss (13) and the positioning rod (12) are inserted into one side wall of the valve cavity (14).
2. The hard seal check valve of claim 1, wherein: the valve is characterized in that the outer side of one end of the valve pipe (1) is fixedly connected with a mounting flange (2), and a mounting hole (3) is formed in the outer edge of the mounting flange (2).
3. The hard seal check valve of claim 1, wherein: the buffer ball block (9) is hemispherical in shape, a plurality of groups of positioning bosses (13) and positioning rods (12) are arranged, the buffer ball block is circumferentially distributed by taking the horizontal central line of the valve plate (4) as a circle center, and the sealing steel ring (10) is movably contacted with the sealing ring (11).
4. The hard seal check valve of claim 1, wherein: the fixed frame (5) is fixedly mounted on the inner wall of the valve cavity (14), the first water through hole (6) is fixedly formed in the fixed frame (5), the main rod (19) and the auxiliary rod (16) are movably inserted in the fixed frame (5), one ends of the main rod (19) and the auxiliary rod (16) are fixedly connected with one side of the mounting plate (22), the other ends of the main rod (19) and the auxiliary rod (16) are fixedly connected with one side of the valve plate (4), and the second water through hole (21) is formed in the mounting plate (22).
5. The hard seal check valve of claim 1, wherein: the first auxiliary spring (15) is movably sleeved on the outer side of the auxiliary rod (16) and is positioned on one side of the fixing frame (5), and the first spring (17) is movably sleeved on the outer side of the auxiliary rod (16) and is positioned on the other side of the fixing frame (5).
6. The hard seal check valve of claim 1, wherein: the second spring (20) is movably sleeved on the outer side of the main rod (19) and is positioned on one side of the fixing frame (5), and the buffer pad (18) is movably sleeved on the outer side of the main rod (19) and is positioned on the other side of the fixing frame (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321183861.9U CN220452801U (en) | 2023-05-17 | 2023-05-17 | Hard sealing check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321183861.9U CN220452801U (en) | 2023-05-17 | 2023-05-17 | Hard sealing check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220452801U true CN220452801U (en) | 2024-02-06 |
Family
ID=89737020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321183861.9U Active CN220452801U (en) | 2023-05-17 | 2023-05-17 | Hard sealing check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220452801U (en) |
-
2023
- 2023-05-17 CN CN202321183861.9U patent/CN220452801U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |