CN216112313U - Differential pressure pilot valve assembly - Google Patents
Differential pressure pilot valve assembly Download PDFInfo
- Publication number
- CN216112313U CN216112313U CN202122472808.8U CN202122472808U CN216112313U CN 216112313 U CN216112313 U CN 216112313U CN 202122472808 U CN202122472808 U CN 202122472808U CN 216112313 U CN216112313 U CN 216112313U
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- air outlet
- differential pressure
- air inlet
- control chamber
- air
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Abstract
The utility model relates to a differential pressure pilot valve assembly, which comprises a valve body and a valve member, wherein an air inlet passage, two air outlet passages and a control chamber are arranged in the valve body, the air inlet passage is communicated with the two air outlet passages in the control chamber, the air inlet passage and the two air outlet passages respectively extend to the control chamber to form an air inlet hole and two air outlet holes, and the valve member is movably arranged in the control chamber through a driving member to simultaneously control the opening and closing of the air inlet hole and the two air outlet holes. The utility model has reasonable structure, novel design and strong practicability, controls the opening/closing of the two air outlet passages through one valve, realizes the simultaneous opening and closing of the two air outlet passages and ensures that the air pressure of the two air outlet passages can be synchronously changed.
Description
Technical Field
The utility model relates to the technical field of gas circuit control, in particular to a differential pressure guide valve assembly.
Background
In the workstation course of operation, need use the pressure of pilot valve control gas circuit, when a plurality of gas circuits, often control each gas circuit respectively with many each pilot valve, in the use, it is asynchronous often to take place the atmospheric pressure control of each gas circuit, lead to each gas circuit operation disorder, make the board control abnormal, if can carry out synchro control to each gas circuit, the condition of the reduction board malfunction that will be very big, for this reason, it can open and close with the pilot valve of closing to necessarily design two gas circuits of simultaneous control.
SUMMERY OF THE UTILITY MODEL
In order to solve the defects of the prior art, the utility model provides a differential pressure guide valve component which synchronously controls the opening/closing of one inlet air channel and two outlet air channels in a control chamber through a valve element.
In order to achieve the purpose, the technical scheme provided by the utility model is as follows: a differential pressure pilot valve assembly comprises a valve body and a valve piece, wherein an air inlet passage, two air outlet passages and a control chamber are formed in the valve body, the air inlet passage is communicated with the two air outlet passages in the control chamber, the air inlet passage and the two air outlet passages respectively extend into the control chamber to form an air inlet hole and two air outlet holes, and the valve piece is movably arranged in the control chamber through a driving piece to simultaneously control the opening and closing of the air inlet hole and the two air outlet holes.
In the technical scheme, the outer circumferences of the air inlet hole and the two air outlet holes are respectively provided with a first sealing ring, and in a closed state, the first sealing rings are in contact with the valve piece and the bottom of the control chamber to form a sealing space for mutually isolating the air inlet passage and the air outlet passage.
In the above technical scheme, the outer side wall of the valve member is provided with a second sealing ring which is in contact with the inner side wall of the control chamber.
In the above technical scheme, the driving part is an air cylinder, the air cylinder is fixed on the valve body, and the valve member is arranged at the front part of the piston rod of the air cylinder.
In the above technical scheme, the valve member is cylindrical, and the end face of the valve member is in contact fit with each first sealing ring.
In the above technical scheme, the bottom of the control chamber is provided with a boss, the air inlet and the two air outlets are arranged on the boss, the boss is provided with mounting grooves on the outer circumferences of the air inlet and the air outlets, and the first sealing ring is embedded in the mounting grooves.
In the above technical scheme, the valve body is provided with a pressure sensor, and the air outlet passage extends to form a connecting passage leading to the pressure sensor.
In the above technical solution, the pressure sensor includes a differential pressure sensor and an absolute pressure sensor.
In the above technical solution, the differential pressure sensor is disposed between two connection passages of two air outlet passages, and the absolute pressure sensor is disposed on a connection passage of one of the air outlet passages.
The utility model has the advantages of reasonable structure, novel design and strong practicability, and controls the opening/closing of the two air outlet passages through one valve to realize the simultaneous opening and closing of the two air outlet passages, so that the air pressure of the two air outlet passages can be synchronously changed.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic exploded view of the present invention.
Fig. 3 is a schematic top view of the present invention (with the cylinder removed).
Fig. 4 is a front view of the present invention.
FIG. 5 is a schematic view of the cross-sectional structure A-A' of FIG. 3.
FIG. 6 is a schematic view of the cross-sectional structure B-B' of FIG. 4.
FIG. 7 is a schematic view of the cross-sectional structure of C-C' in FIG. 4.
Fig. 8 is a perspective view of a first valve seat of the present invention.
In the figure: 11. a first valve seat; 12. a second valve seat; 13. a third valve seat; 21. a control chamber; 22. a boss; 23. mounting grooves; 3. a cylinder; 31. a valve member; 32. a second seal ring; 33. a first seal ring; 41. a differential pressure sensor; 42. an absolute pressure sensor; 51. an air inlet; 52. an air inlet; 6. a first air outlet passage; 61. a first air outlet hole; 62. a first air outlet; 63. a first connection path; 7. a second outlet passage; 71. a second air outlet; 72. a second air outlet; 73. a second connecting path.
Detailed Description
Embodiments of the present invention will be described with reference to the accompanying drawings.
As shown in fig. 1 to 8, a differential pressure pilot valve assembly includes a valve body and a valve member 31, wherein an air inlet passage and two air outlet passages are formed in the valve body, a control chamber 21 is formed in the valve body, the air inlet passage is communicated with the two air outlet passages in the control chamber 21, the air inlet passage and the two air outlet passages respectively extend into the control chamber 21 to form an air inlet 51 and two air outlet holes, and the valve member 31 is movably disposed in the control chamber 21 through a driving member to simultaneously control the opening and closing of the air inlet 51 and the two air outlet holes.
The outer circumferences of the air inlet hole 51 and the two air outlet holes are respectively provided with a first sealing ring 33, and in a closed state, the first sealing ring 33 is in contact with the valve member 31 and the bottom of the control chamber 21 to form a sealing space for isolating the air inlet passage and the air outlet passage from each other.
The outer side wall of the valve member 31 is provided with a second sealing ring 32 which is in contact with the inner side wall of the control chamber 21. The driving part is a cylinder 3, the cylinder 3 is fixed on the valve body, and a valve piece 31 is arranged at the front part of a piston rod of the cylinder 3. The valve member 31 has a cylindrical shape, and the end surface of the valve member 31 is in contact engagement with each of the first seal rings 33.
The bottom of the control chamber 21 is provided with a boss 22, an air inlet 51 and two air outlet holes are arranged on the boss 22, the boss 22 is provided with an installation groove 23 on the outer circumferences of the air inlet 51 and the air outlet holes, and the first sealing ring 33 is embedded in the installation groove 23.
The valve body is provided with a pressure sensor, and the air outlet passage extends to form a connecting passage leading to the pressure sensor.
The pressure sensors include a differential pressure sensor 41 and an absolute pressure sensor 42. Differential pressure sensor 41 is provided between two connection passages of the two outlet passages, and absolute pressure sensor 42 is provided on first connection passage 63 of first outlet passage 6. The differential pressure sensor 41 is a 6kpa differential pressure sensor 41.
The valve body is composed of three first valve seats 11, second valve seats 12 and third valve seats 13, the three valve seats are fixed into a square valve body through screws, the first valve seat 11 is used for installing an absolute pressure sensor 42, an air inlet hole 51 at the bottom of the processing control chamber 21, a first air outlet hole 61, a second air outlet hole 71, an air inlet passage, a first air outlet passage 6, a second air outlet passage 7 and a first connecting passage 63 of the first air outlet passage 6, the second valve seat 12 is used for installing the cylinder 3 and the processing control chamber 21, the third valve seat 13 is used for processing a part of the second air outlet passage 7 and a part of the second connecting passage 73, and the differential pressure sensor 41 is installed between the first valve seat 11 and the second valve seat 12. The valve body is divided into three valve seats, so that the processing difficulty of the air outlet passage and the air inlet passage of the valve body can be reduced to a great extent, and the processing efficiency and the yield are improved.
The air inlet passage and the first air outlet passage 6 respectively form an air inlet 52 and a first air outlet 62 on the outer side wall of the first valve seat 11, wherein the number of the air inlets 52 and the number of the first air outlets 62 are two, the two air inlets 52 are respectively positioned on the two adjacent outer side walls of the first valve seat 11, the two first air outlets 62 are respectively positioned on the two adjacent outer side walls of the first valve seat 11, when the air inlet passage and the first air outlet passage are used, one air inlet 52 and the other air outlet 62 can be selected for use, and the other air inlet passage and the other air outlet passage are plugged by a plug. The second outlet passage 7 forms a second outlet port 72 on the outer side wall of the second valve seat 12.
The utility model has reasonable structure, novel design and strong practicability, controls the opening/closing of the two air outlet passages through the valve piece 31, realizes the simultaneous opening and closing of the two air outlet passages and ensures that the air pressure of the two air outlet passages can be synchronously changed.
The technical scope of the present invention is not limited to the above embodiments, and any modifications, equivalent variations and modifications made to the above embodiments according to the technical spirit of the present invention still fall within the technical scope of the present invention.
Claims (9)
1. The differential pressure pilot valve assembly is characterized by comprising a valve body and a valve member, wherein an air inlet passage, two air outlet passages and a control chamber are formed in the valve body, the air inlet passage is communicated with the two air outlet passages in the control chamber, the air inlet passage and the two air outlet passages respectively extend into the control chamber to form an air inlet hole and two air outlet holes, and the valve member is movably arranged in the control chamber through a driving member to simultaneously control the opening and closing of the air inlet hole and the two air outlet holes.
2. The differential pressure pilot valve assembly as defined in claim 1, wherein said inlet port and said two outlet ports are respectively provided with a first sealing ring on the outer circumference thereof, and in a closed state, said first sealing rings are in contact with the valve member and the bottom of the control chamber to form a sealed space isolating the inlet passage and the outlet passage from each other.
3. The differential pressure pilot valve assembly of claim 2, wherein the valve member outer side wall is provided with a second sealing ring in contact with the control chamber inner side wall.
4. The differential pressure pilot valve assembly as defined in claim 3, wherein said actuating member is a cylinder secured to the valve body, said valve member being disposed forwardly of a cylinder piston rod.
5. The differential pressure pilot valve assembly of claim 4, wherein the valve member is cylindrical and an end face of the valve member is in contacting engagement with each of the first seal rings.
6. The differential pressure pilot valve assembly as defined in claim 5, wherein a boss is provided at the bottom of the control chamber, the air inlet hole and the two air outlet holes are provided on the boss, the boss is provided with mounting grooves on the outer circumferences of the air inlet hole and the air outlet holes, and the first sealing ring is embedded in the mounting grooves.
7. The differential pressure pilot valve assembly of claim 1, wherein a pressure sensor is disposed on the valve body, and the outlet passage extends with a connecting passage to the pressure sensor.
8. The differential pressure pilot valve assembly of claim 7, wherein the pressure sensor comprises a differential pressure sensor and an absolute pressure sensor.
9. The differential pressure pilot valve assembly of claim 8, wherein the differential pressure sensor is disposed between two connecting passages of two outlet passages, and the absolute pressure sensor is disposed on a connecting passage of one of the outlet passages.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122472808.8U CN216112313U (en) | 2021-10-13 | 2021-10-13 | Differential pressure pilot valve assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122472808.8U CN216112313U (en) | 2021-10-13 | 2021-10-13 | Differential pressure pilot valve assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216112313U true CN216112313U (en) | 2022-03-22 |
Family
ID=80692583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122472808.8U Active CN216112313U (en) | 2021-10-13 | 2021-10-13 | Differential pressure pilot valve assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216112313U (en) |
-
2021
- 2021-10-13 CN CN202122472808.8U patent/CN216112313U/en active Active
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