CN219734290U - Valve seat of pneumatic control valve - Google Patents
Valve seat of pneumatic control valve Download PDFInfo
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- CN219734290U CN219734290U CN202320967742.6U CN202320967742U CN219734290U CN 219734290 U CN219734290 U CN 219734290U CN 202320967742 U CN202320967742 U CN 202320967742U CN 219734290 U CN219734290 U CN 219734290U
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- valve seat
- exhaust port
- sinking
- pneumatic control
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- 238000007789 sealing Methods 0.000 claims description 11
- 230000006835 compression Effects 0.000 claims description 10
- 238000007906 compression Methods 0.000 claims description 10
- 230000008859 change Effects 0.000 abstract description 2
- 230000002349 favourable effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 230000009471 action Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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Abstract
The embodiment of the utility model provides a valve seat of a pneumatic control valve, and relates to the field of pneumatic control valves; the pneumatic control valve comprises a valve seat, a valve body and a valve core, wherein the valve seat is arranged at the bottom of the valve body, the valve core is arranged in the valve body, the valve seat comprises a valve seat body and a sinking part arranged at the middle position of the valve seat body, a sinking groove is formed between the upper part of the sinking part and the valve seat body, and the middle position of the bottom of the valve body extends into the sinking groove; the sinking part is provided with an exhaust port and a plurality of air inlets, the exhaust port is positioned at the center point of the sinking part, and the air inlets are uniformly distributed around the exhaust port; the top of the exhaust port is provided with a bulge communicated with the exhaust port, the bulge is abutted with the valve core, and the valve core covers and seals the opening of the bulge. Through setting up a plurality of air inlets around the gas vent, the air inlet of disk seat is many, and the air input can change, can realize the demand of different operating modes, is favorable to flow control stable accuracy.
Description
Technical Field
The utility model relates to the field of pneumatic control valves, in particular to a valve seat of a pneumatic control valve.
Background
The pneumatic control valve refers to various pneumatic elements which control the pressure, flow and flow direction of air flow in a pneumatic system and ensure the normal operation of a pneumatic executing element or mechanism. The structure of the pneumatic control valve can be divided into a valve seat and a valve core of the pneumatic control valve.
The valve seat of the pneumatic control valve is a device for supporting the fully closed position of the valve core, and generally plays a role in supporting a certain valve so as to ensure that the valve is kept at a normal working position and realize the circulation and disconnection of gas.
Most of the pneumatic valve seats of the pneumatic valves in the prior art are complex in structure, large in size and large in occupied space, and an exhaust port and an air inlet are generally arranged on two sides of the pneumatic valve seat respectively, the exhaust port and the air inlet cannot be replaced with each other, and when the gas flow changes greatly, the exhaust port and the air inlet are limited, so that the control accuracy of the pneumatic valve is reduced.
The utility model patent with the patent number of CN201920596074.4 discloses a pneumatic control valve, wherein a valve seat of the pneumatic control valve is provided with an inlet, an outlet and a valve port, the inlet is arranged on the left side of the valve seat of the pneumatic control valve, the outlet is arranged on the right side of the valve seat of the pneumatic control valve, and the gas flow and the flow rate of the pneumatic control valve are limited by adopting a mode of one inlet and one outlet.
Disclosure of Invention
In view of the above, embodiments of the present utility model have been developed to provide a pneumatic control valve seat that overcomes, or at least partially solves, the above-described problems.
The valve seat of the pneumatic control valve comprises a valve seat, a valve body and a valve core, wherein the valve seat is arranged at the bottom of the valve body, the valve core is arranged in the valve body, the valve seat comprises a valve seat body and a sinking part arranged at the middle position of the valve seat body, a sinking groove is formed between the upper part of the sinking part and the valve seat body, and the middle position of the bottom of the valve body extends into the sinking groove;
the sinking part is provided with an exhaust port and a plurality of air inlets, the exhaust port is positioned at the center point of the sinking part, and the air inlets are uniformly distributed around the exhaust port; the top of the exhaust port is provided with a protruding part communicated with the exhaust port, the protruding part is abutted with the valve core, and the valve core covers and seals the opening of the protruding part.
Preferably, the protruding portion is in a truncated cone shape, and the protruding portion is flush with the top surface of the valve seat body.
Preferably, the sinking portion and the sinking groove are both circular.
Preferably, the top surface of the valve seat body is further provided with an annular groove, the annular groove is arranged around the outer side of the sinking groove, the annular groove is covered by the bottom of the valve body, and the annular groove is used for installing a sealing ring.
Preferably, the number of the air inlets is four, and the air inlets are symmetrically arranged in pairs.
Preferably, the diameter of the exhaust port is the same as the diameter of the intake port.
Preferably, a compression spring is further arranged, one end of the compression spring is sleeved on the outer side of the bottom of the valve core, and the other end of the compression spring is sleeved on the outer side of the protruding portion and is abutted to the top surface of the sinking portion.
Preferably, a plurality of mounting holes are further formed in the outer side edge of the valve seat body, and the mounting holes are used for mounting the valve seat body.
Preferably, the valve seat body and the valve body are correspondingly provided with connecting holes.
The utility model has the following advantages:
in the embodiment of the utility model, the pneumatic control valve comprises a valve seat, a valve body and a valve core, wherein the valve seat is arranged at the bottom of the valve body, the valve core is arranged in the valve body, the valve seat comprises a valve seat body and a sinking part arranged at the middle position of the valve seat body, a sinking groove is formed between the upper part of the sinking part and the valve seat body, and the middle position of the bottom of the valve body extends into the sinking groove; the sinking part is provided with an exhaust port and a plurality of air inlets, the exhaust port is positioned at the center point of the sinking part, and the air inlets are uniformly distributed around the exhaust port; the top of the exhaust port is provided with a protruding part communicated with the exhaust port, the protruding part is abutted with the valve core, and the valve core covers and seals the opening of the protruding part. By arranging the sinking groove, part of the valve body extends into the sinking groove so as to improve the sealing effect between the valve seat and the valve body; the valve core is separated from the bulge after moving upwards by arranging the bulge to be abutted with the valve core, and the bulge is abutted with the valve core after moving downwards to realize the opening and closing of the exhaust port, so that the communication and disconnection between the exhaust port and the air inlet are realized; through setting up a plurality of air inlets around the gas vent, the air inlet of disk seat is many, and the air input can change, can realize the demand of different operating modes, is favorable to flow control stable accuracy.
Drawings
In order to more clearly illustrate the technical solutions of the present utility model, the drawings that are needed in the description of the present utility model will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort to a person skilled in the art.
FIG. 1 is a schematic view of the overall structure of a valve seat of the present utility model;
FIG. 2 is a cross-sectional view of a valve seat of the present utility model;
FIG. 3 is a cross-sectional view of the valve seat of the present utility model shown in connection with a valve body;
reference numerals: 100. a valve seat; 110. a sinking part; 120. a sinking groove; 130. an exhaust port; 131. a boss; 140. an air inlet; 150. an annular groove; 160. a mounting hole; 170. a connection hole; 200. a valve body; 300. a valve core; 310. compressing the spring.
Detailed Description
In order that the manner in which the above recited objects, features and advantages of the present utility model are obtained will become more readily apparent, a more particular description of the utility model briefly described above will be rendered by reference to the appended drawings. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model. 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.
Referring to fig. 1-3, there is shown a schematic structural diagram of a valve seat of a pneumatic control valve according to the present utility model, which may specifically include the following structures: the pneumatic control valve comprises a valve seat 100, a valve body 200 and a valve core 300, wherein the valve seat 100 is arranged at the bottom of the valve body 200, the valve core 300 is arranged in the valve body 200, the valve seat 100 comprises a valve seat 100 body and a sinking part 110 arranged at the middle position of the valve seat 100 body, a sinking groove 120 is formed between the upper part of the sinking part 110 and the valve seat 100 body, and the middle position of the bottom of the valve body 200 extends into the sinking groove 120;
the sinking portion 110 is provided with an exhaust port 130 and a plurality of air inlets 140, the exhaust port 130 is located at the center point of the sinking portion 110, and the air inlets 140 are uniformly distributed around the exhaust port 130; the top of the exhaust port 130 is provided with a boss 131 communicated with the exhaust port 130, the boss 131 is abutted against the valve core 300, and the valve core 300 covers and seals the opening of the boss 131.
In the embodiment of the utility model, the pneumatic control valve comprises a valve seat 100, a valve body 200 and a valve core 300, wherein the valve seat 100 is arranged at the bottom of the valve body 200, the valve core 300 is arranged inside the valve body 200, the valve seat 100 comprises a valve seat 100 body and a sinking part 110 arranged at the middle position of the valve seat 100 body, a sinking groove 120 is formed between the upper part of the sinking part 110 and the valve seat 100 body, and the middle position of the bottom of the valve body 200 extends into the sinking groove 120; the sinking portion 110 is provided with an exhaust port 130 and a plurality of air inlets 140, the exhaust port 130 is located at the center point of the sinking portion 110, and the air inlets 140 are uniformly distributed around the exhaust port 130; the top of the exhaust port 130 is provided with a boss 131 communicated with the exhaust port 130, the boss 131 is abutted against the valve core 300, and the valve core 300 covers and seals the opening of the boss 131. By providing the sinking groove 120, a part of the valve body 200 is extended into the sinking groove 120 to improve the sealing effect between the valve seat 100 and the valve body 200; by arranging the bulge 131 to be abutted against the valve core 300, the valve core 300 is separated from the bulge 131 after moving upwards, and the bulge 131 is abutted against the valve core 300 after moving downwards, so that the exhaust port 130 is opened and closed, and the communication and disconnection between the exhaust port 130 and the air inlet 140 are realized; by arranging a plurality of air inlets 140 around the exhaust port 130, the air inlets 140 of the valve seat 100 are more, the air inflow can be changed, the requirements of different working conditions can be met, and the flow control is stable and accurate.
Next, a pneumatic control valve seat 100 in the present exemplary embodiment will be further described.
In this embodiment of the present utility model, the valve seat 100 includes a valve seat 100 body and a sinking portion 110 disposed at a middle position of the valve seat 100 body, a sinking groove 120 is formed between an upper portion of the sinking portion 110 and the valve seat 100 body, a bottom middle position of the valve body 200 extends into the sinking groove 120, that is, a middle portion of the valve body 200 extends downward, and an outer edge portion of the valve body 200 is disposed on an outer edge top surface of the valve seat 100 body. A connecting hole 170 is correspondingly formed between the valve seat 100 body and the valve body 200, and the connecting hole 170 is used for inserting a connecting piece, so that the valve seat 100 body and the valve body 200 are connected to form an integral structure. By extending the valve body 200 part downward into the sinking groove 120, the bottom of the valve body 200 is in a step shape, the sealing effect between the valve body and the valve seat 100 body is better, and gas leakage is prevented.
The sinking portion 110 is provided with an air outlet 130 and a plurality of air inlets 140, the air outlet 130 is positioned at the center point of the sinking portion 110, the air inlets 140 are uniformly distributed around the air outlet 130, preferably, four air inlets 140 can be arranged symmetrically, and by arranging the plurality of air inlets 140 and one air outlet 130, the air inlet amount can be changed according to the requirement, and the device can adapt to the air control of different equipment and different air flow rates; the top of the exhaust port 130 is provided with a boss 131 communicated with the exhaust port 130, the boss 131 is abutted against the valve core 300, the valve core 300 covers and seals the opening of the boss 131, the valve core 300 is always abutted against the boss 131 in a state that the valve body 200 is not inflated, the opening of the boss 131 is covered, and thus the communication between the plurality of air inlets 140 and the exhaust port 130 is cut off, and the air path is disconnected; when the valve body 300 moves upward, it is separated from the boss 131, and at this time, the air inlet 140 communicates with the air outlet 130, and the air path communicates. By providing the boss 131 higher than the air inlet 140 on the peripheral side, the distance from the valve body 300 can be shortened, and the sealing effect can be improved.
As an example, the diameter of the exhaust port 130 is the same as the diameter of the inlet port 140, facilitating the calculation and control of the gas inlet and outlet flows.
As an example, the boss 131 has a truncated cone shape, and the boss 131 is flush with the top surface of the valve seat 100 body. The caliber of the boss 131 in the shape of a truncated cone gradually decreases from bottom to top, and the caliber of the end part is minimum, so that the valve core 300 can fully cover the opening of the boss 131, and the sealing effect between the valve core 300 is better.
As an example, the sink portion 110 and the sink pocket 120 are each circular. The circular countersink 110 and the countersink 120 can be internally matched with the cylindrical valve body 200, and have a good sealing effect compared with a structure having a corner.
In the embodiment of the present utility model, the top surface of the valve seat 100 body is further provided with an annular groove 150, the annular groove 150 is disposed around the outer side of the sink 120, the annular groove 150 is covered by the bottom of the valve body 200, and the annular groove 150 is used for installing a sealing ring. By providing the annular groove 150 between the valve body 200 and the valve seat 100 body for mounting a seal ring, a multiple sealing effect is achieved, and the sealing performance between the valve seat 100 body and the valve body 200 is further improved.
In the embodiment of the present utility model, a compression spring 310 is further provided, one end of the compression spring 310 is sleeved outside the bottom of the valve core 300, and the other end of the compression spring 310 is sleeved outside the protruding portion 131 and abuts against the top surface of the sinking portion 110. Up and down movement of the valve body 300 is achieved by the compression spring 310, and at the same time, a shock absorbing effect can be improved.
In the embodiment of the present utility model, a plurality of mounting holes 160 are further formed at the outer edge of the valve seat 100 body, and the mounting holes 160 are used for mounting the valve seat 100 body to a suitable device or position.
While preferred embodiments of the present utility model have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the scope of the embodiments of the utility model.
Finally, it is further noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article or terminal device comprising the element.
The foregoing has outlined a detailed description of the valve seat of a pneumatic control valve in accordance with the present utility model, wherein specific examples are presented herein to illustrate the principles and embodiments of the present utility model and to assist in understanding the method and core concepts of the present utility model; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in accordance with the ideas of the present utility model, the present description should not be construed as limiting the present utility model in view of the above.
Claims (9)
1. The valve seat of the pneumatic control valve comprises a valve seat, a valve body and a valve core, wherein the valve seat is arranged at the bottom of the valve body, and the valve core is arranged in the valve body;
the sinking part is provided with an exhaust port and a plurality of air inlets, the exhaust port is positioned at the center point of the sinking part, and the air inlets are uniformly distributed around the exhaust port; the top of the exhaust port is provided with a protruding part communicated with the exhaust port, the protruding part is abutted with the valve core, and the valve core covers and seals the opening of the protruding part.
2. The valve seat of claim 1, wherein the boss is frustoconical and is flush with the top surface of the valve seat body.
3. The air control valve seat according to claim 1, wherein the sink portion and the sink groove are each circular.
4. A valve seat of a pneumatic control valve according to claim 3, characterized in that the top surface of the valve seat body is further provided with an annular groove, said annular groove being arranged around the outside of the sink groove, said annular groove being covered by the bottom of the valve body, said annular groove being for mounting a sealing ring.
5. The valve seat of claim 1, wherein four of said air inlets are symmetrically disposed in pairs.
6. The air control valve seat according to claim 1, wherein the diameter of the exhaust port is the same as the diameter of the intake port.
7. The valve seat of claim 1, further comprising a compression spring, wherein one end of the compression spring is sleeved on the outer side of the bottom of the valve core, and the other end of the compression spring is sleeved on the outer side of the protruding portion and abuts against the top surface of the sinking portion.
8. The air control valve seat according to claim 1, wherein a plurality of mounting holes are further formed in the outer side edge of the valve seat body, and the mounting holes are used for mounting the valve seat body.
9. The valve seat of a pneumatic control valve according to claim 1, wherein the valve seat body is provided with a connecting hole corresponding to the valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320967742.6U CN219734290U (en) | 2023-04-17 | 2023-04-17 | Valve seat of pneumatic control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320967742.6U CN219734290U (en) | 2023-04-17 | 2023-04-17 | Valve seat of pneumatic control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219734290U true CN219734290U (en) | 2023-09-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320967742.6U Active CN219734290U (en) | 2023-04-17 | 2023-04-17 | Valve seat of pneumatic control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219734290U (en) |
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2023
- 2023-04-17 CN CN202320967742.6U patent/CN219734290U/en active Active
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