CN213236182U - Low-temperature precise pressure regulating valve - Google Patents
Low-temperature precise pressure regulating valve Download PDFInfo
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- CN213236182U CN213236182U CN202021507108.7U CN202021507108U CN213236182U CN 213236182 U CN213236182 U CN 213236182U CN 202021507108 U CN202021507108 U CN 202021507108U CN 213236182 U CN213236182 U CN 213236182U
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- pressure regulating
- regulating valve
- valve
- valve core
- valve rod
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Abstract
A low-temperature precise pressure regulating valve belongs to the technical field of pressure regulating valves; establish to the internal thread on the pore wall through at the through-hole, establish to the external screw thread lower tip of valve rod, mesh the external screw thread of through-hole in with the dog mutually, and lower tip at the valve rod sets up the pressure regulating valve core, it realizes reciprocating of pressure regulating valve core to rotate the valve rod, pressure regulating valve core and valve rod be fixed connection, pressure regulating valve core and rubber valve plug are swivelling joint, when the internal face of pressure regulating valve core lapse on making a plurality of ceramic seal rings on the rubber valve plug and pressure regulating valve core seat touches mutually, continue to rotate the valve rod, the rubber valve plug then can not rotate, thereby the rotation of this kind of reducible ceramic seal ring of structure reduces ceramic seal ring's wearing and tearing, through setting up a plurality of ceramic seal rings, and a plurality of ceramic seal ring are all laminated with the internal face of pressure regulating valve core seat mutually, when.
Description
Technical Field
The utility model belongs to the technical field of the air-vent valve, specifically relate to a low temperature accurate air-vent valve.
Background
Pressure regulating valves are often required to be arranged in the hydraulic system to regulate the pressure of fluid in the system, and the pressure of the fluid can meet the operation requirements of different actuating mechanisms by arranging multi-stage oil ways. At present, a pressure regulating valve core and a pressure regulating valve plate of the existing pressure regulating valve are both made of metal materials, and when the pressure regulating valve core works, the contact part of the pressure regulating valve core and the pressure regulating valve plate is easily abraded to generate a gap, so that the sealing performance is reduced, and the stability is poor.
Disclosure of Invention
The utility model mainly solves the technical problem existing in the prior art and provides a low-temperature precise pressure regulating valve.
The above technical problem of the present invention can be solved by the following technical solutions: the utility model provides a low temperature accurate air-vent valve, includes the valve body, the valve body includes feed channel, ejection of compact way, pressure regulating runner and valve rod chamber, the feed channel all is the toper with the inside of ejection of compact way, and the axial lead of feed channel aligns with the axial lead of ejection of compact way, the feed channel link up with the ejection of compact way each other, the pressure regulating runner is located the downside of feed channel and ejection of compact way junction, the axial lead of pressure regulating runner is perpendicular to the axial lead of feed channel in the ejection of compact way, be equipped with the pressure regulating fixed station in the pressure regulating runner, be equipped with pressure regulating valve core seat on the pressure regulating fixed station, the inner wall of pressure regulating valve core seat is the conical surface, the upside of feed channel and ejection of compact way junction is located to the valve rod chamber, the bottom in valve rod chamber is equipped with the dog, the central point of dog puts and is equipped with the through-hole that link up from top to bottom, the lower extreme of pressure regulating valve core is connected with the rubber valve plug, the rubber valve plug is the toper, and the tapering of rubber valve plug is the same with the conical surface tapering of pressure regulating valve core seat inner wall, a plurality of draw-in grooves have been seted up on the conical surface of rubber valve plug, it is equipped with ceramic seal to correspond in the draw-in groove.
Preferably, the hole wall of the through hole is provided with an internal thread, the lower end part of the valve rod is provided with an external thread, and the external thread is meshed with the internal thread.
Preferably, the pressure regulating valve core is fixedly connected with the valve rod, and the pressure regulating valve core is rotatably connected with the rubber valve plug.
The utility model discloses beneficial effect who has: establish to the internal thread on the pore wall through at the through-hole, establish to the external screw thread lower tip of valve rod, mesh the external screw thread of through-hole in with the dog mutually, and lower tip at the valve rod sets up the pressure regulating valve core, it realizes reciprocating of pressure regulating valve core to rotate the valve rod, pressure regulating valve core and valve rod be fixed connection, pressure regulating valve core and rubber valve plug are swivelling joint, when the internal face of pressure regulating valve core lapse on making a plurality of ceramic seal rings on the rubber valve plug and pressure regulating valve core seat touches mutually, continue to rotate the valve rod, the rubber valve plug then can not rotate, thereby the rotation of this kind of reducible ceramic seal ring of structure reduces ceramic seal ring's wearing and tearing, through setting up a plurality of ceramic seal rings, and a plurality of ceramic seal ring are all laminated with the internal face of pressure regulating valve core seat mutually, when.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is an enlarged schematic view of a portion a in fig. 1.
In the figure: 1. a valve body; 2. a feed channel; 3. a discharging channel; 4. a pressure regulating flow passage; 5. a valve stem cavity; 6. a pressure regulating fixed station; 7. a pressure regulating valve core seat; 8. a stopper; 9. a through hole; 10. a valve stem; 11. a pressure regulating valve core; 12. a rubber valve plug; 13. a card slot; 14. ceramic seal ring.
Detailed Description
The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.
Example (b): the utility model provides a low temperature accurate air-vent valve, as shown in figure 1-figure 2, including valve body 1, valve body 1 includes that feed channel 2, ejection of compact say 3, pressure regulating runner 4 and valve rod chamber 5, feed channel 2 all is the toper with ejection of compact say 3 inside, and the axial lead of feed channel 2 aligns with the axial lead of ejection of compact way 3, feed channel 2 link up each other with ejection of compact way 3, pressure regulating runner 4 locates the downside of feed channel 2 and ejection of compact way 3 junction, the axial lead of pressure regulating runner 4 is perpendicular to the axial lead of feed channel 2 in ejection of compact way 3, be equipped with pressure regulating fixed station 6 in the pressure regulating runner 4, be equipped with pressure regulating valve core seat 7 on the pressure regulating fixed station 6, the inner wall of pressure regulating valve core seat 7 is the conical surface, valve rod chamber 5 locates the upside of feed channel 2 and ejection of compact way 3 junction, the bottom of valve rod chamber 5 is equipped with air-vent valve 8, the central point of dog 8 puts and is equipped with through-hole 9 that link up, wear to be equipped with valve rod 10 in the through-hole 9, the lower tip of valve rod 10 is equipped with pressure regulating valve core 11, and the lower extreme of pressure regulating valve core 11 is connected with rubber valve plug 12, rubber valve plug 12 is the toper, and the tapering of rubber valve plug 12 is the same with the conical surface tapering of the internal wall of pressure regulating valve core seat 7, a plurality of draw-in grooves 13 have been seted up on the conical surface of rubber valve plug 12, correspond in draw-in groove 13 and be equipped with ceramic seal 14, through setting up a plurality of ceramic seal 14, and a plurality of ceramic seal 14 all laminate mutually with the internal face of pressure regulating valve core seat 7 simultaneously, when wherein certain sealing washer wearing and tearing became invalid.
Be the internal thread on the pore wall of through-hole 9, the lower tip of valve rod 10 is the external screw thread, meshes through-hole 9's internal thread in with valve rod 10's external screw thread and dog 8 mutually to set up pressure regulating valve core 11 at the lower tip of valve rod 10, rotate valve rod 10 and realize reciprocating of pressure regulating valve core 11, the external screw thread meshes with the internal thread mutually, pressure regulating valve core 11 is fixed connection with valve rod 10, and pressure regulating valve core 11 is swivelling joint with rubber valve plug 12, and when pressure regulating valve core 11 moves down and makes a plurality of ceramic seal rings 14 on the rubber valve plug 12 and the internal face of air-vent valve core seat 7 touch mutually, continue to rotate valve rod 10, and rubber valve plug 12 then can not rotate, thereby this kind of structure reducible ceramic seal ring 14's.
Finally, it should be noted that the above embodiments are merely representative examples of the present invention. Obviously, the present invention is not limited to the above-described embodiments, and many modifications are possible. Any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention should be considered as belonging to the protection scope of the present invention.
Claims (3)
1. The utility model provides a low temperature accurate air-vent valve, includes valve body (1), its characterized in that: the valve body (1) comprises a feeding channel (2), a discharging channel (3), a pressure regulating flow channel (4) and a valve rod cavity (5), wherein the feeding channel (2) and the discharging channel (3) are both conical, the axial lead of the feeding channel (2) is aligned with the axial lead of the discharging channel (3), the feeding channel (2) is communicated with the discharging channel (3), the pressure regulating flow channel (4) is arranged at the lower side of the joint of the feeding channel (2) and the discharging channel (3), the axial lead of the pressure regulating flow channel (4) is perpendicular to the axial lead of the feeding channel (2) in the discharging channel (3), a pressure regulating fixed platform (6) is arranged in the pressure regulating flow channel (4), a pressure regulating valve core seat (7) is arranged on the pressure regulating fixed platform (6), the inner wall of the pressure regulating valve core seat (7) is a conical surface, the valve rod cavity (5) is arranged at the upper side of the joint of the feeding channel (2) and the discharging channel (3), the bottom in valve rod chamber (5) is equipped with dog (8), through-hole (9) that link up about central point of dog (8) puts and is equipped with, wear to be equipped with valve rod (10) in through-hole (9), the lower tip of valve rod (10) is equipped with pressure regulating valve core (11), and the lower extreme of pressure regulating valve core (11) is connected with rubber valve plug (12), rubber valve plug (12) are the toper, and the tapering of rubber valve plug (12) is the same with the conical surface tapering of pressure regulating valve core seat (7) inner wall, a plurality of draw-in grooves (13) have been seted up on the conical surface of rubber valve plug (12), it is equipped with ceramic seal circle (14) to correspond in draw-in groove (13.
2. A low temperature precision pressure regulating valve according to claim 1 wherein: the hole wall of the through hole (9) is provided with an internal thread, the lower end part of the valve rod (10) is provided with an external thread, and the external thread is meshed with the internal thread.
3. A low temperature precision pressure regulating valve according to claim 1 wherein: the pressure regulating valve core (11) is fixedly connected with the valve rod (10), and the pressure regulating valve core (11) is rotatably connected with the rubber valve plug (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021507108.7U CN213236182U (en) | 2020-07-27 | 2020-07-27 | Low-temperature precise pressure regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021507108.7U CN213236182U (en) | 2020-07-27 | 2020-07-27 | Low-temperature precise pressure regulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213236182U true CN213236182U (en) | 2021-05-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021507108.7U Active CN213236182U (en) | 2020-07-27 | 2020-07-27 | Low-temperature precise pressure regulating valve |
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| Country | Link |
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| CN (1) | CN213236182U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114562566A (en) * | 2022-04-02 | 2022-05-31 | 中铁隧道勘测设计院有限公司 | Three-way and two-way switching wind shielding device and sealing determination method thereof |
-
2020
- 2020-07-27 CN CN202021507108.7U patent/CN213236182U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114562566A (en) * | 2022-04-02 | 2022-05-31 | 中铁隧道勘测设计院有限公司 | Three-way and two-way switching wind shielding device and sealing determination method thereof |
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