CN214946649U - Vertical piston pressure reducing valve - Google Patents
Vertical piston pressure reducing valve Download PDFInfo
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- CN214946649U CN214946649U CN202121162163.1U CN202121162163U CN214946649U CN 214946649 U CN214946649 U CN 214946649U CN 202121162163 U CN202121162163 U CN 202121162163U CN 214946649 U CN214946649 U CN 214946649U
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Abstract
The utility model discloses a rectilinear piston relief pressure valve, which comprises a valve body, the left side of valve body is provided with the water inlet, the right side of valve body is provided with the delivery port, the inside lower extreme of valve body is provided with the lower part water cavity, the bottom fixedly connected with blanking cap in lower part water cavity, the upper end in lower part water cavity is provided with the running water mouth, the interior middle part of valve body and the middle part sliding connection of activity valve rod, the outside of activity valve rod is close to the first seal gasket of position fixedly connected with of bottom, the position fixedly connected with that the activity valve rod is close to the upper end seals up the edge. The utility model discloses in, when the water pressure of water inlet 12 changes, the corresponding change that takes place of water pressure in the lower part water cavity 14, the thrust of upper portion water cavity 15 changes this moment, and movable valve rod 6 drives first seal gasket 8 up-and-down motion, lets thrust and pressure reach the balance to this water pressure that realizes delivery port 13 is stable unchangeable, is worth wideling popularize.
Description
Technical Field
The utility model relates to a relief pressure valve technical field especially relates to rectilinear piston relief pressure valve.
Background
The piston type pressure reducing valve adopts the opening degree of an opening and closing part in a control valve body to adjust the flow of a medium, reduces the pressure of the medium, adjusts the opening degree of the opening and closing part by means of the action of the pressure behind the valve, keeps the pressure behind the valve within a certain range, keeps the pressure at an outlet within a set range under the condition that the pressure at the inlet is continuously changed, and protects the subsequent life production appliances.
Most of the existing vertical piston pressure reducing valves are not stable enough in water pressure control.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art, and providing a vertical piston pressure reducing valve.
In order to achieve the above purpose, the utility model adopts the following technical scheme: vertical piston pressure reducing valve, including the valve body, the left side of valve body is provided with the water inlet, the right side of valve body is provided with the delivery port, the inside lower extreme of valve body is provided with lower part water cavity, the bottom fixedly connected with blanking cap in lower part water cavity, the upper end in lower part water cavity is provided with the running water mouth, the middle part of the interior of valve body and the middle part sliding connection of activity valve rod, the outside of activity valve rod is close to the first seal gasket of position fixedly connected with of bottom, the activity valve rod is close to the position fixedly connected with sealed edge of upper end, be provided with upper portion water cavity between the bottom side of sealed edge and the valve body, the bottom middle part of activity valve rod communicates through guiding gutter and upper portion water cavity, the top fixedly connected with valve cap of valve body, the outside top threaded connection of valve cap has the decoration cap, the inboard upper end threaded connection of valve cap has adjusting nut, the bottom end of the adjusting nut is rotatably connected to one end of the spring, and the other end of the spring is fixedly connected with the top of the movable valve rod.
As a further description of the above technical solution:
and a pressure gauge is arranged in the middle of the bottom end of the blocking cap.
As a further description of the above technical solution:
the bottom end of the outer side of the movable valve rod is fixedly connected with a gasket seat, and the upper end of the gasket seat is fixedly connected with the bottom end of the first sealing gasket.
As a further description of the above technical solution:
and a third sealing ring is arranged in the middle of the outer side of the sealing edge.
As a further description of the above technical solution:
and a second sealing gasket is arranged in the middle of the inner part of the blocking cap.
As a further description of the above technical solution:
a first sealing ring is arranged on the inner side of the bottom end of the valve body.
As a further description of the above technical solution:
and a second sealing ring is arranged at the middle upper part of the outer side of the movable valve rod.
The utility model discloses following beneficial effect has:
in the utility model, when the liquid flows from the water inlet to the water outlet through the water flowing port and the lower water cavity, the water in the lower water cavity flows into the upper water cavity through the water chute, the sealing edge is pushed to move upwards against the pressure of the spring, the first sealing gasket at the lower end of the movable valve rod is driven to move upwards through the sealing edge, the flow area of the water flowing port is reduced at the moment, the liquid pressure in the lower water cavity is correspondingly reduced, the downward pressure of the spring is greater than the upward thrust of the upper water cavity along with the reduction of the liquid pressure in the lower water cavity, the movable valve rod and the first sealing gasket are driven to move downwards, the flow area of the water flowing port is increased at the moment, the liquid pressure in the lower water cavity and the upper water cavity is increased, the sealing edge is continuously pushed to drive the movable valve rod and the first sealing gasket to move upwards, the circulation is realized, when the thrust of the upper water cavity and the pressure of the spring are balanced, the water flow port is not changed, so that the water pressure of the water outlet is controlled to be stable and unchanged, and the water outlet control device is worthy of being popularized vigorously.
Drawings
Fig. 1 is a schematic view of an internal structure of a vertical piston pressure reducing valve according to the present invention;
fig. 2 is an external structural schematic diagram of the vertical piston pressure reducing valve according to the present invention.
Illustration of the drawings:
1. a valve body; 2. a bonnet; 3. a decorative cap; 4. adjusting the nut; 5. a spring; 6. a movable valve stem; 7. a sealing edge; 8. a first sealing gasket; 9. a gasket seat; 10. a plugging cap; 11. a pressure gauge; 12. a water inlet; 13. a water outlet; 14. a lower water chamber; 15. an upper water chamber; 16. a water chute; 17. a water flowing port; 18. a second sealing gasket; 19. a first seal ring; 20. a second seal ring; 21. and a third sealing ring.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1-2, the present invention provides an embodiment: a vertical piston pressure reducing valve comprises a valve body 1, wherein a water inlet 12 is formed in the left side of the valve body 1, a water outlet 13 is formed in the right side of the valve body 1, a lower water cavity 14 is formed in the lower end inside the valve body 1, a plugging cap 10 is fixedly connected to the bottom end of the lower water cavity 14, a water flowing port 17 is formed in the upper end of the lower water cavity 14, the middle inside of the valve body 1 is in sliding connection with the middle of a movable valve rod 6, a first sealing gasket 8 is fixedly connected to the position, close to the bottom end, of the outer side of the movable valve rod 6, a sealing edge 7 is fixedly connected to the position, close to the upper end, of the movable valve rod 6, an upper water cavity 15 is formed between the bottom side of the sealing edge 7 and the valve body 1, the middle bottom end of the movable valve rod 6 is communicated with the upper water cavity 15 through a water guide groove 16, a valve cap 2 is fixedly connected to the top end of the valve body 1, a decorative cap 3 is in threaded connection with the outer top end of the valve cap 2, and an adjusting nut 4 is in threaded connection with the inner upper end of the valve cap 2, the bottom end of the adjusting nut 4 is rotatably connected to one end of the spring 5, the other end of the spring 5 is fixedly connected with the top of the movable valve rod 6, the pressure of the spring 5 on the movable valve rod 6 can be adjusted by rotating the adjusting nut 4, so that the water pressure adjustment of the water outlet 13 is realized, the water flowing port 17 is in an open state in an initial state, when liquid flows from the water inlet 12 to the water outlet 13 through the water flowing port 17 and the lower water cavity 14, water in the lower water cavity 14 flows into the upper water cavity 15 through the water chute 16, the sealing edge 7 is pushed to overcome the pressure of the spring 5 to move upwards, the sealing edge 7 drives the first sealing gasket 8 at the lower end of the movable valve rod 6 to move upwards, at the moment, the overflowing area of the water flowing port 17 is reduced, so that the liquid pressure of the lower water cavity 14 is correspondingly reduced, and the downward pressure of the spring 5 is greater than the upward thrust of the upper water cavity 15 along with the reduction of the liquid pressure in the lower water cavity 14, the movable valve rod 6 and the second sealing gasket 18 move downwards, the overflowing area of the water flowing port 17 is increased at the moment, the liquid pressure in the lower water cavity 14 and the upper water cavity 15 is increased, the pushing sealing edge 7 drives the movable valve rod 6 and the first sealing gasket 8 to move upwards, and the circulation is repeated, when the thrust of the upper water cavity 15 and the pressure of the spring 5 are balanced, the movable valve rod 6 keeps still, the overflowing area of the water flowing port 17 is unchanged, the water pressure of the water outlet 13 is stable and unchanged, when the water pressure of the water inlet 12 is changed, the water pressure in the lower water cavity 14 correspondingly changes, at the moment, the thrust of the upper water cavity 15 changes, the movable valve rod 6 drives the first sealing gasket 8 to move upwards and downwards, the thrust and the pressure are balanced newly, and the water pressure of the water outlet 13 is stable and unchanged.
The bottom middle part of stifled cap 10 is provided with manometer 11 for observe the water pressure in the valve body 1, the outside bottom fixedly connected with spacer 9 of activity valve pole 6, the upper end of spacer 9 and the bottom fixed connection of first seal gasket 8, sealed outside middle part along 7 is provided with third sealing washer 21, the interior middle part of stifled cap 10 is provided with second seal gasket 18, the bottom inboard of valve body 1 is provided with first sealing washer 19, upper portion is provided with second sealing washer 20 in the outside of activity valve pole 6.
The working principle is as follows: when the liquid flows from the water inlet 12 to the water outlet 13 through the water flowing port 17 and the lower water chamber 14, the water in the lower water chamber 14 flows into the upper water chamber 15 through the water chute 16, the sealing edge 7 is pushed to move upward against the pressure of the spring 5, the sealing edge 7 drives the first sealing gasket 8 at the lower end of the movable valve rod 6 to move upward, the flow area of the water flowing port 17 is reduced, the liquid pressure in the lower water chamber 14 is correspondingly reduced, the downward pressure of the spring 5 is greater than the upward thrust of the upper water chamber 15 along with the reduction of the liquid pressure in the lower water chamber 14, the movable valve rod 6 and the second sealing gasket 18 move downward, the flow area of the water flowing port 17 is increased, the liquid pressure in the lower water chamber 14 and the upper water chamber 15 is increased, the sealing edge 7 is pushed to drive the movable valve rod 6 and the first sealing gasket 8 to move upward, by such circulation, when the thrust of the upper water cavity 15 and the pressure of the spring 5 are balanced, the movable valve rod 6 keeps still, the overflowing area of the water flowing port 17 is unchanged, so that the water pressure of the water outlet 13 is stable and unchanged, when the water pressure of the water inlet 12 is changed, the water pressure in the lower water cavity 14 is correspondingly changed, at the moment, the thrust of the upper water cavity 15 is changed, the movable valve rod 6 drives the first sealing gasket 8 to move up and down, so that the thrust and the pressure are balanced newly, and the water pressure of the water outlet 13 is stable and unchanged.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.
Claims (7)
1. Rectilinear piston relief pressure valve, including valve body (1), its characterized in that: a water inlet (12) is formed in the left side of the valve body (1), a water outlet (13) is formed in the right side of the valve body (1), a lower water cavity (14) is formed in the lower end of the interior of the valve body (1), a plugging cap (10) is fixedly connected to the bottom end of the lower water cavity (14), a water flowing port (17) is formed in the upper end of the lower water cavity (14), the inner middle of the valve body (1) is in sliding connection with the middle of the movable valve rod (6), a first sealing gasket (8) is fixedly connected to the position, close to the bottom end, of the outer side of the movable valve rod (6), a sealing edge (7) is fixedly connected to the position, close to the upper end, of the movable valve rod (6), an upper water cavity (15) is formed between the bottom side of the sealing edge (7) and the valve body (1), and the bottom middle of the movable valve rod (6) is communicated with the upper water cavity (15) through a water guide groove (16), the top fixedly connected with valve cap (2) of valve body (1), the outside top threaded connection of valve cap (2) has decoration cap (3), the inboard upper end threaded connection of valve cap (2) has adjusting nut (4), the bottom of adjusting nut (4) is rotated and is connected the one end in spring (5), the other end of spring (5) and the top fixed connection of movable valve pole (6).
2. The vertical piston pressure reducing valve of claim 1, wherein: and a pressure gauge (11) is arranged in the middle of the bottom end of the plugging cap (10).
3. The vertical piston pressure reducing valve of claim 1, wherein: the bottom end of the outer side of the movable valve rod (6) is fixedly connected with a gasket seat (9), and the upper end of the gasket seat (9) is fixedly connected with the bottom end of a first sealing gasket (8).
4. The vertical piston pressure reducing valve of claim 1, wherein: and a third sealing ring (21) is arranged in the middle of the outer side of the sealing edge (7).
5. The vertical piston pressure reducing valve of claim 1, wherein: and a second sealing gasket (18) is arranged in the middle of the inner part of the plugging cap (10).
6. The vertical piston pressure reducing valve of claim 1, wherein: a first sealing ring (19) is arranged on the inner side of the bottom end of the valve body (1).
7. The vertical piston pressure reducing valve of claim 1, wherein: and a second sealing ring (20) is arranged at the middle upper part of the outer side of the movable valve rod (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121162163.1U CN214946649U (en) | 2021-05-27 | 2021-05-27 | Vertical piston pressure reducing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121162163.1U CN214946649U (en) | 2021-05-27 | 2021-05-27 | Vertical piston pressure reducing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214946649U true CN214946649U (en) | 2021-11-30 |
Family
ID=79060134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121162163.1U Active CN214946649U (en) | 2021-05-27 | 2021-05-27 | Vertical piston pressure reducing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214946649U (en) |
-
2021
- 2021-05-27 CN CN202121162163.1U patent/CN214946649U/en active Active
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