CN216479143U - Valve body - Google Patents
Valve body Download PDFInfo
- Publication number
- CN216479143U CN216479143U CN202123212018.2U CN202123212018U CN216479143U CN 216479143 U CN216479143 U CN 216479143U CN 202123212018 U CN202123212018 U CN 202123212018U CN 216479143 U CN216479143 U CN 216479143U
- Authority
- CN
- China
- Prior art keywords
- pressure regulating
- valve body
- cavity
- sleeve
- regulating plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Control Of Fluid Pressure (AREA)
Abstract
The application relates to a valve body, which belongs to the technical field of valves and comprises a valve body, wherein a pressure regulating device is arranged in the valve body; the pressure regulating device comprises a sleeve body and a pressure regulating assembly, wherein the sleeve body is fixedly connected with the valve body; the inner cavity of the sleeve body separates the flow guide cavity from the pressure regulating cavity; the pressure regulating assembly comprises a first pressure regulating plate and a second pressure regulating plate, the first pressure regulating plate is positioned in the flow guide cavity, and the second pressure regulating plate hermetically isolates the inner cavity of the sleeve body and the pressure regulating cavity; the first pressure regulating plate and the second pressure regulating plate can slide relative to the sleeve body; the pressure regulating assembly also comprises an elastic part which is positioned in the inner cavity and pushes the second pressure regulating plate to extrude the pressure regulating cavity; the sleeve body is provided with a pressure relief channel for adjusting the pressure of the inner cavity when the first pressure adjusting plate slides relative to the sleeve body. This application has the pressure regulating function who realizes the valve body to improve the effect of heat transfer system flow distribution's homogeneity.
Description
Technical Field
The application relates to the technical field of valves, in particular to a valve body.
Background
At present, a valve is an actuator in a control system, has a function of opening and closing a pipeline to limit flow, and in a heat exchange system, the valve serves as an end element for adjusting flow speed in the system, and has an indispensable position.
The existing valve body comprises a valve body, a liquid inlet and a liquid outlet are formed in the valve body, when liquid is introduced, the valve body is opened, and fluid passes through the valve body from the liquid inlet and flows to the liquid outlet.
In view of the above-mentioned related technologies, the inventor believes that there exists a defect that a pressure difference possibly occurring in a valve in a heat exchange system causes an excessive flow in a partial region, and a flow shortage in the partial region occurs, causing a non-uniform flow distribution in the heat exchange system.
SUMMERY OF THE UTILITY MODEL
In order to realize the pressure regulating function of valve body to improve heat transfer system flow distribution's homogeneity, this application provides a valve body.
The application provides a valve body adopts following technical scheme:
a valve body comprises a valve body, wherein a pressure regulating device is arranged in the valve body;
the valve body is provided with a flow guide cavity for fluid to flow through and a pressure regulating cavity communicated with the liquid inlet of the valve body;
the pressure regulating device comprises a sleeve body and a pressure regulating assembly, wherein the sleeve body is fixedly connected with the valve body; the inner cavity of the sleeve body separates the flow guide cavity and the pressure regulating cavity;
the pressure regulating assembly comprises a first pressure regulating plate and a second pressure regulating plate, the first pressure regulating plate is positioned in the flow guide cavity, and the second pressure regulating plate hermetically isolates the inner cavity of the sleeve body and the pressure regulating cavity; the first pressure regulating plate and the second pressure regulating plate can slide relative to the sleeve body; the pressure regulating assembly also comprises an elastic part which is positioned in the inner cavity and pushes the second pressure regulating plate to extrude the pressure regulating cavity;
the sleeve body is provided with a pressure relief channel for adjusting the pressure of the inner cavity when the first pressure adjusting plate slides relative to the sleeve body.
Through adopting above-mentioned technical scheme, when the fluid flows to the liquid outlet by the inlet of valve body, most of fluid flows to the liquid outlet and acts on first pressure regulating board through the water conservancy diversion chamber, few part of fluid acts on the second pressure regulating board through the pressure regulating chamber, the pressure in the inner chamber is adjusted through the pressure release passageway, when first pressure regulating board, the power of second pressure regulating board and elastic component is in balanced state, the pressure of water conservancy diversion chamber and pressure regulating intracavity equals, pressure regulating device has realized the pressure regulating function of valve body, and then has improved heat transfer system flow distribution's homogeneity.
Optionally, the pressure regulating device still includes coupling assembling, coupling assembling includes dead lever, fixed block and snap ring, set up on the cover body and supply the dead lever to insert the jack of establishing, the dead lever passes first pressure regulating board and the setting of second pressure regulating board, the fixed block is located the pressure regulating intracavity, the one end of dead lever is inserted and is established to the fixed block in and with fixed block threaded connection, the snap ring sets firmly the one end of keeping away from the fixed block at the dead lever, and the circumference outer wall of snap ring is greater than the inner wall setting of jack.
Through adopting above-mentioned technical scheme, coupling assembling connects first pressure regulating board and second pressure regulating board, and the dead lever is kept away from the one end of snap ring and is inserted in proper order and establish first pressure regulating board and second pressure regulating board and with fixed block threaded connection, the snap ring butt on first pressure regulating board, coupling assembling makes the relative position of first pressure regulating board and second pressure regulating board fixed, and then has realized the pressure regulating uniformity of first pressure regulating board and second pressure regulating board.
Optionally, a guide ring is fixedly arranged at the insertion hole, and the guide ring is located in the inner cavity.
Through adopting above-mentioned technical scheme, when the dead lever inserted the inner chamber by jack department, the guide ring led the dead lever, improved the dead lever and inserted the accuracy when establishing to the second pressure regulating board, and then improved inserting of dead lever and established efficiency.
Optionally, a wear-resistant sleeve is fixedly arranged in the guide ring.
Through adopting above-mentioned technical scheme, wear-resisting cover is protected inserting the dead lever of establishing to guide ring department, has prolonged the life of dead lever and guide ring.
Optionally, a sleeve is arranged between the first pressure regulating plate and the second pressure regulating plate, the sleeve is arranged in the inner cavity, and the first pressure regulating plate and the second pressure regulating plate are both abutted to the sleeve.
By adopting the technical scheme, when the first pressure regulating plate and the second pressure regulating plate are required to be connected and fixed, the sleeve is inserted into the sleeve body through the sliding port, the position of the first pressure regulating plate and the position of the second pressure regulating plate are fixed by the connecting component, the sleeve is abutted between the first pressure regulating plate and the second pressure regulating plate, the connecting area of the first pressure regulating plate and the second pressure regulating plate is increased, and the sliding stability of the first pressure regulating plate and the second pressure regulating plate is improved.
Optionally, the set body has set firmly the spacing ring, and the spacing ring setting is in the one end that the set body is close to the pressure regulating chamber, and second pressure regulating board slides in the spacing ring, the pressure regulating subassembly still includes the seal cover, and the seal cover package is established between second pressure regulating board and spacing ring.
Through adopting above-mentioned technical scheme, the sealed cover has realized the sealed between second pressure regulating board and the spacing ring, and when the fluid promotion second pressure regulating board upward movement of pressure regulating intracavity, the axis of second pressure regulating board along the spacing ring moved towards the direction in water conservancy diversion chamber, and the spacing ring leads the second pressure regulating board, has improved the stability of sliding of second pressure regulating board.
Optionally, a protection plate is arranged on one side, away from the second pressure regulating plate, of the sealing sleeve, and the protection plate is located in the pressure regulating cavity.
Through adopting above-mentioned technical scheme, the protection shield is kept away from one side in the second pressure regulating board to the seal cover and is protected, has reduced the debris that probably exists in the pressure regulating intracavity and to the injury of seal cover, and then has prolonged the life of protection shield.
Optionally, the pressure relief channel is arranged on the sleeve body, and the inner cavity and the flow guide cavity are communicated through the pressure relief channel.
By adopting the technical scheme, when the first pressure regulating plate and the second pressure regulating plate regulate the pressure in the valve body, the fluid in the inner cavity flows into the flow guide cavity through the pressure relief channel, so that the pressure of the flow guide cavity and the pressure of the inner cavity are consistent, and the pressure regulating stability of the pressure regulating device is further improved.
Optionally, a bearing ring is fixedly arranged on one side of the first pressure regulating plate, which is far away from the sleeve body.
Through adopting above-mentioned technical scheme, accept the ring and draw in the fluid that the disk seat flowed to on the first pressure regulating board, guaranteed the effective area that the fluid was accepted to first pressure regulating board, and then improved pressure regulating device's pressure regulating efficiency.
Optionally, the pressure regulating device is adapted to be used in any valve body that can be fitted.
Through adopting above-mentioned technical scheme, arbitrary valve body and the pressure regulating device of adaptation pressure regulating device installation all can be sold alone, have improved valve body and pressure regulating device's practicality.
In summary, the present application includes at least one of the following beneficial technical effects:
1. when fluid flows from the liquid inlet to the liquid outlet of the valve body, most of the fluid flows to the liquid outlet through the valve seat and acts on the first pressure regulating plate, and a small part of the fluid acts on the second pressure regulating plate through the pressure regulating cavity;
2. the connecting assembly enables the relative positions of the first pressure regulating plate and the second pressure regulating plate to be fixed, and therefore pressure regulating consistency of the first pressure regulating plate and the second pressure regulating plate is achieved;
3. fluid in the inner cavity flows into the flow guide cavity through the pressure relief channel, so that the pressure intensity of the flow guide cavity is consistent with that of the inner cavity, and the pressure regulating stability of the pressure regulating device is improved.
Drawings
FIG. 1 is a cross-sectional view of example 1 of the present application;
FIG. 2 is a schematic structural diagram of a pressure regulating device according to embodiment 1 of the present application;
FIG. 3 is a sectional view of a pressure regulating device according to embodiment 2 of the present application;
fig. 4 is a schematic view showing a structure of a receiving ring according to embodiment 3 of the present application.
In the figure, 1, a valve body; 11. a flow guide cavity; 12. a pressure regulating cavity; 2. a pressure regulating device; 21. a sleeve body; 211. an inner cavity; 212. a pressure relief channel; 213. a jack; 214. a guide ring; 2141. a wear-resistant sleeve; 215. a limiting ring; 22. a voltage regulating component; 221. a first pressure regulating plate; 2211. a bearing ring; 222. a second pressure regulating plate; 223. an elastic member; 224. sealing sleeves; 225. a protection plate; 23. a connecting assembly; 231. fixing the rod; 232. a fixed block; 233. a snap ring; 24. a sleeve.
Detailed Description
The present application is described in further detail below with reference to figures 1-4.
The embodiment of the application discloses a valve body.
Example 1
Referring to fig. 1 and 2, a valve body comprises a valve body 1 and a pressure regulating device 2 for regulating pressure of the valve body 1, wherein the pressure regulating device 2 is suitable for any valve body 1 which can be installed in an adaptive mode, the pressure regulating function of the valve body is achieved through the pressure regulating device 2, and the uniformity of flow distribution in a heat exchange system is improved.
Referring to fig. 1, a flow guide cavity 11 for fluid to flow and a pressure regulating cavity 12 communicated with a liquid inlet of the valve body 1 are formed on the valve body 1; the pressure regulating device 2 comprises a sleeve body 21 and a pressure regulating assembly 22, the sleeve body 21 is fixedly arranged in the valve body 1, an inner cavity 211 of the sleeve body 21 separates the flow guide cavity 11 from the pressure regulating cavity 12, the pressure regulating assembly 22 comprises a first pressure regulating plate 221 which is arranged in the flow guide cavity 11 in a sliding manner and a second pressure regulating plate 222 which is arranged in the sleeve body 21 in a sliding manner, the second pressure regulating plate 222 seals and isolates the inner cavity 211 from the pressure regulating cavity 12, a connecting assembly 23 which is used for connecting and fixing the first pressure regulating plate 221 and the second pressure regulating plate 222 is arranged between the first pressure regulating plate 221 and the second pressure regulating plate 222, the pressure regulating assembly 22 further comprises an elastic part 223 arranged in the inner cavity 211, the elastic part 223 is a spring, one end of the spring is abutted against the second pressure regulating plate 222, the other end of the spring is fixedly arranged in the sleeve body 21, the elastic part 223 extrudes the pressure regulating cavity 12 through the second pressure regulating plate 222, a pressure relief channel 212 is formed in the sleeve body 21, and the pressure relief channel 212 communicates the inner cavity 211 with the flow guide cavity 11.
When fluid flows from the liquid inlet to the liquid outlet of the valve body 1, most of the fluid acts on the first pressure regulating plate 221 and flows to the liquid outlet from the diversion cavity 11, a small part of the fluid acts on the second pressure regulating plate 222 through the pressure regulating cavity 12, the fluid in the pressure regulating cavity 12 extrudes the second pressure regulating plate 222, the first pressure regulating plate 221, the elastic member 223 and the second pressure regulating plate 222 regulate pressure together, and the fluid in the inner cavity 211 flows to the diversion cavity 11 through the pressure relief channel 212, so that the pressures in the diversion cavity 11 and the pressure regulating cavity 12 are equal, the pressure regulating function of the valve body is realized, and the uniformity of flow distribution in the heat exchange system is improved.
Referring to fig. 3, a limiting ring 215 is fixedly arranged in the sleeve body 21, the limiting ring 215 is arranged close to the sleeve body 21 in a direction away from the first pressure regulating plate 221, a circumferential outer wall of the limiting ring 215 is fixedly connected with a circumferential inner wall of the sleeve body 21, the second pressure regulating plate 222 is slidably arranged in the limiting ring 215, the limiting ring 215 limits and guides the second pressure regulating plate 222, the pressure regulating assembly 22 further includes a sealing sleeve 224 and a protecting plate 225, the sealing sleeve 224 is wrapped on one side of the second pressure regulating plate 222 away from the inner cavity 211, an edge of the sealing sleeve 224 is fixedly sealed between the limiting ring 215 and the sleeve body 21, the sealing sleeve 224 can be made of rubber, when the second pressure regulating plate 222 moves, the sealing sleeve 224 elastically deforms, the protecting plate 225 is fixedly arranged on a side wall of the sealing sleeve 224 away from the second pressure regulating plate 222, and the protecting plate 225 protects the sealing sleeve 224.
Referring to fig. 1 and 3, the connection assembly 23 includes a fixing rod 231, a fixing block 232 screwed to one end of the fixing rod 231, and a snap ring 233 fixed to a circumferential side wall of the fixing rod 231, the sleeve 21 is provided with an insertion hole 213 for the fixing rod 231 to be inserted into, the insertion hole 213 is fixedly provided with a guide ring 214, the guide ring 214 is located in the inner cavity 211, a gap between the guide ring 214 and the fixing rod 231 is sealed, a wear-resistant sleeve 2141 is adhered to a circumferential inner wall of the guide ring 214, the wear-resistant sleeve 2141 is made of graphite, service lives of the guide ring 214 and the fixing rod 231 are prolonged, the fixing rod 231 passes through the first pressure regulating plate 221, the second pressure regulating plate 222, the sealing sleeve 224 and the protection plate 225, and the snap ring 233 is disposed at one end of the fixing rod 231 away from the fixing block 232.
When first pressure regulating board 221 and second pressure regulating board 222 need to be connected and fixed, one end of fixing rod 231, which is far away from snap ring 233, sequentially passes through first pressure regulating board 221, second pressure regulating board 222, seal sleeve 224 and protection plate 225 and is inserted into fixed block 232 to be in threaded connection with fixed block 232, while fixed block 232 abuts against second pressure regulating board 222, snap ring 233 abuts against first pressure regulating board 221, connection and fixation of first pressure regulating board 221 and second pressure regulating board 222 are realized, and then sliding stability of first pressure regulating board 221 and second pressure regulating board 222 compared with sleeve body 21 is improved.
The implementation principle of the valve body in embodiment 1 of the application is as follows: the elastic piece sequentially penetrates through the first pressure regulating plate 221, the second pressure regulating plate 222, the sealing sleeve 224 and the protection plate 225 and is inserted into the fixing block 232 to be in threaded connection with the fixing block 232, the fixing block 232 abuts against the second pressure regulating plate 222, the clamping ring 233 abuts against the first pressure regulating plate 221, the first pressure regulating plate 221 and the second pressure regulating plate 222 are fixedly connected, and one end of the elastic piece 223 abuts against the second pressure regulating plate 222; when fluid flows from the liquid inlet to the liquid outlet of the valve body 1, most of the fluid acts on the first pressure regulating plate 221 and flows to the liquid outlet through the flow guide cavity 11, a small part of the fluid passes through the pressure regulating cavity 12 and acts on the second pressure regulating plate 222, the fluid in the pressure regulating cavity 12 extrudes the second pressure regulating plate 222, the first pressure regulating plate 221, the elastic member 223 and the second pressure regulating plate 222 regulate pressure jointly, and the fluid in the inner cavity 211 flows to the flow guide cavity 11 through the pressure relief channel 212, so that the pressures in the flow guide cavity 11 and the pressure regulating cavity 12 are equal, the pressure regulating function of the valve body is realized, and the uniformity of flow distribution in a heat exchange system is improved.
Example 2
Referring to fig. 3, the difference from embodiment 1 is that: a sleeve 24 is fixedly arranged on one side of the first pressure regulating plate 221 close to the sleeve body 21, the sleeve 24 and the guide ring 214 are coaxially arranged, the insertion hole 213 is used for the sleeve 24 to insert, and the fixing rod 231 is positioned in the sleeve 24; when the fixing rod 231 connects and fixes the first pressure regulating plate 221 and the second pressure regulating plate 222, the sleeve 24 abuts against the second pressure regulating plate 222, and the sleeve 24 improves the connection stability of the first pressure regulating plate 221 and the second pressure regulating plate 222.
Example 3
Referring to fig. 4, the difference from embodiment 1 or embodiment 2 is that: a bearing ring 2211 is fixedly arranged on one side of the first pressure regulating plate 221, which is far away from the sleeve body 21, and the circumferential outer wall of the bearing ring 2211 is coplanar with the circumferential side wall of the first pressure regulating plate 221; the receiving ring 2211 collects the fluid flowing to the first pressure regulating plate 221, so that the effective area of the first pressure regulating plate 221 for receiving the fluid is maintained, and the pressure regulating efficiency of the pressure regulating device 2 is improved.
The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (10)
1. A valve body, comprising a valve body (1), characterized in that: a pressure regulating device (2) is arranged in the valve body (1);
the valve body (1) is provided with a flow guide cavity (11) for fluid to flow through and a pressure regulating cavity (12) communicated with a liquid inlet of the valve body (1);
the pressure regulating device (2) comprises a sleeve body (21) and a pressure regulating assembly (22), wherein the sleeve body (21) is fixedly connected with the valve body (1); the inner cavity (211) of the sleeve body (21) separates the flow guide cavity (11) and the pressure regulating cavity (12);
the pressure regulating assembly (22) comprises a first pressure regulating plate (221) and a second pressure regulating plate (222), the first pressure regulating plate (221) is located in the diversion cavity (11), and the second pressure regulating plate (222) is used for sealing and isolating the inner cavity (211) of the sleeve body (21) and the pressure regulating cavity (12); the first pressure regulating plate (221) and the second pressure regulating plate (222) can slide relative to the sleeve body (21); the pressure regulating assembly (22) further comprises an elastic piece (223) which is positioned in the inner cavity (211) and pushes the second pressure regulating plate (222) to extrude the pressure regulating cavity (12);
the sleeve body (21) is provided with a pressure relief channel (212) for adjusting the pressure of the inner cavity (211) when the first pressure adjusting plate (221) slides relative to the sleeve body (21).
2. A valve body as claimed in claim 1, wherein: pressure regulating device (2) still include coupling assembling (23), coupling assembling (23) are including dead lever (231), fixed block (232) and snap ring (233), set up on the cover body (21) and supply dead lever (231) to insert jack (213) of establishing, dead lever (231) pass first pressure regulating board (221) and second pressure regulating board (222) setting, fixed block (232) are located pressure regulating chamber (12), the one end of dead lever (231) is inserted and is established to fixed block (232) in and with fixed block (232) threaded connection, snap ring (233) set firmly the one end of keeping away from fixed block (232) at dead lever (231), and the circumference outer wall of snap ring (233) is greater than the inner wall setting of jack (213).
3. A valve body as claimed in claim 2, wherein: a guide ring (214) is fixedly arranged at the position of the insertion hole (213), and the guide ring (214) is positioned in the inner cavity (211).
4. A valve body as claimed in claim 3, wherein: and a wear-resistant sleeve (2141) is fixedly arranged in the guide ring (214).
5. A valve body as claimed in claim 2, wherein: a sleeve (24) is arranged between the first pressure regulating plate (221) and the second pressure regulating plate (222), the sleeve (24) is arranged in the inner cavity (211), and the first pressure regulating plate (221) and the second pressure regulating plate (222) are connected with the sleeve (24) in an abutting mode.
6. A valve body as claimed in claim 1, wherein: the pressure regulating device is characterized in that a limiting ring (215) is fixedly arranged in the sleeve body (21), the limiting ring (215) is arranged at one end, close to the pressure regulating cavity (12), of the sleeve body (21), the second pressure regulating plate (222) slides in the limiting ring (215), the pressure regulating assembly (22) further comprises a sealing sleeve (224), and the sealing sleeve (224) is arranged between the second pressure regulating plate (222) and the limiting ring (215) in a wrapping mode.
7. A valve body as claimed in claim 6, wherein: and a protection plate (225) is arranged on one side, away from the second pressure regulating plate (222), of the sealing sleeve (224), and the protection plate (225) is positioned in the pressure regulating cavity (12).
8. A valve body as claimed in claim 1, wherein: the pressure relief channel (212) is arranged on the sleeve body (21), and the inner cavity (211) is communicated with the flow guide cavity (11) through the pressure relief channel (212).
9. A valve body as claimed in claim 1, wherein: one side of the first pressure regulating plate (221), which is far away from the sleeve body (21), is fixedly provided with a bearing ring (2211).
10. A valve body as claimed in claim 1, wherein: the pressure regulating device (2) is suitable for being installed in any valve body (1) in an adaptive mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123212018.2U CN216479143U (en) | 2021-12-17 | 2021-12-17 | Valve body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123212018.2U CN216479143U (en) | 2021-12-17 | 2021-12-17 | Valve body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216479143U true CN216479143U (en) | 2022-05-10 |
Family
ID=81426167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123212018.2U Active CN216479143U (en) | 2021-12-17 | 2021-12-17 | Valve body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216479143U (en) |
-
2021
- 2021-12-17 CN CN202123212018.2U patent/CN216479143U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| ES2771723T3 (en) | Balanced Solenoid Valve | |
| CN109323006B (en) | Electronic expansion valve | |
| BR0107931A (en) | Pressure regulator and shutoff valve combined | |
| CN207454845U (en) | A kind of plug-in overflow valve | |
| CN216479143U (en) | Valve body | |
| CN203757101U (en) | Emergency cut-off safety device | |
| CN111043351B (en) | Ultralow-temperature low-flow-resistance self-maintaining two-position three-way stop valve | |
| CN219734256U (en) | Valve core structure suitable for gas pressure regulator | |
| CN116592152A (en) | Slide valve | |
| WO2005015335A2 (en) | High accuracy low leakage valve for high pressure applications | |
| CN113685388B (en) | Water-based proportional pressure-reducing overflow valve | |
| CN214368063U (en) | Electric balance valve | |
| CN214889000U (en) | Pressure reducing valve | |
| CN221897173U (en) | Integrated valve and heat pump system | |
| CN210106849U (en) | Hydraulic pipe joint | |
| CN219517477U (en) | Stop valve and breathing machine | |
| CN220118723U (en) | Overflow valve for quick circulation occasion | |
| CN219035577U (en) | Electronic expansion valve | |
| CN210003825U (en) | Guide type pressure relief structure for pipeline stop valve | |
| CN215980991U (en) | Check valve with good fluid impact resistance | |
| CN116538314A (en) | Integrated valve | |
| CN219954266U (en) | Valve assembly and electronic expansion valve | |
| CN216200576U (en) | Manual stop valve for spaceflight | |
| CN220600450U (en) | High-flow sewage draining valve | |
| CN219432515U (en) | Plate pilot valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |