CN220249043U - Adjustable high-precision pressure balance valve - Google Patents
Adjustable high-precision pressure balance valve Download PDFInfo
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- CN220249043U CN220249043U CN202321697613.6U CN202321697613U CN220249043U CN 220249043 U CN220249043 U CN 220249043U CN 202321697613 U CN202321697613 U CN 202321697613U CN 220249043 U CN220249043 U CN 220249043U
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- 238000007789 sealing Methods 0.000 claims abstract description 28
- 230000001105 regulatory effect Effects 0.000 claims abstract description 22
- 238000005192 partition Methods 0.000 claims description 14
- 230000000903 blocking effect Effects 0.000 claims description 2
- 238000007493 shaping process Methods 0.000 abstract description 5
- 238000004073 vulcanization Methods 0.000 abstract description 5
- 230000008859 change Effects 0.000 abstract description 4
- 230000004044 response Effects 0.000 abstract description 2
- 239000012528 membrane Substances 0.000 description 11
- 230000009471 action Effects 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 230000006837 decompression Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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- Control Of Fluid Pressure (AREA)
Abstract
The utility model provides an adjustable high-precision pressure balance valve, which is provided with a regulating cavity, a pressure release cavity, a feedback cavity and a balance spring, wherein the regulating cavity can be connected with a remote regulating end through a gas circuit; when each effort is balanced each other, the balanced valve is in steady state, and when regulation and control end or output air pressure change, each effort unbalance, components such as case, valve rod, sealing seat can be opened under the promotion of each cavity effort, change the pressure of output to rebalance to guarantee output pressure automatic adjustment, dynamic balance, guarantee that output air pressure is stable controllable, realize the regulation outlet pressure of quick high accuracy. The balance valve has the advantages of quick response, accurate pressure regulation, simple and compact structure, convenient operation and the like, and can better meet the requirements of specific fields such as tire vulcanization shaping, large-pipe-diameter compressed air accurate pressure regulation and the like.
Description
Technical Field
The utility model belongs to the technical field of fluid control, and particularly relates to an adjustable high-precision pressure balance valve.
Background
The balance valve regulates the flow of medium by controlling the opening of the opening and closing part in the valve, changes the pressure of the medium, and simultaneously regulates the opening of the opening and closing part by the action of the pressure behind the valve, so that the pressure behind the valve is stabilized in a certain range, and the balance valve has higher requirements on the precision and stability of regulating and controlling the pressure of the air source in the fields of tire vulcanization shaping, large-pipe diameter compressed air precision pressure regulation and the like. The existing balance valve has the defects of complex structure, low control precision, poor pressure stabilizing effect and other factors, and the existing balance valve lacks a matched balance valve capable of meeting the requirements in the fields of tire vulcanization shaping, large-pipe-diameter compressed air precise pressure regulation and the like.
Disclosure of Invention
In order to overcome the defects in the prior art, the utility model provides the adjustable high-precision pressure balance valve, which can automatically stabilize the pressure of an air source to a certain range when the pressure of an output end is changed, ensure the automatic adjustment and dynamic balance of the pressure of the output end, has a simple structure and convenient operation, and can better meet the requirements of specific fields such as vulcanization shaping of tires, precise pressure regulation of large-pipe-diameter compressed air and the like.
The utility model adopts the technical proposal for solving the technical problems that: an adjustable high-precision pressure balance valve comprises a valve body, wherein one side of the valve body is provided with an input port, and the opposite side of the input port is provided with an output port; an upper cover is arranged at the top of the valve body, a valve partition is arranged between the valve body and the upper cover, an upper diaphragm is arranged between the upper cover and the valve partition, a regulating cavity is formed between the upper diaphragm and the upper cover, a regulating end interface communicated with the regulating cavity is arranged on the upper cover, and the regulating end interface is connected with a remote regulating end through an air passage; a lower diaphragm is arranged between the valve spacer and the valve body, and a feedback cavity communicated with the output port is formed between the lower diaphragm and the valve body; a pressure release cavity communicated with the external atmosphere is formed between the lower diaphragm and the upper diaphragm, a valve core capable of moving along with the upper diaphragm and the lower diaphragm is arranged between the lower diaphragm and the upper diaphragm, the bottom of the valve core is opened, a cavity is formed in the middle of the valve core, and an opening communicated with the cavity and the pressure release cavity is formed in the wall body; the bottom opening of the valve core is in separable contact with the top end of the valve rod, the rod body of the valve rod is arranged in the valve body and positioned between the input port and the output port, the bottom end of the valve rod is fixedly connected with a sealing seat, and the sealing seat is arranged between the input port and the output port and used for blocking or communicating the input port with the output port; the sealing seat is connected with the valve cap connected to the bottom of the valve body in a sliding way, and a balance spring is arranged between the bottom of the sealing seat and the valve cap.
As a further embodiment of the utility model, the valve rod is hollow, and the rod body is provided with a plurality of notches communicated with the interior of the valve rod.
As a further embodiment of the utility model, the top of the sealing seat is detachably contacted with the inner wall of the valve body, and when the top of the sealing seat is contacted with the inner wall of the valve body, a seal is formed between the input port and the output port; when the two are separated, the input port is communicated with the output port.
As a further embodiment of the present utility model, the air pressure in the seal seat is the same as the air pressure in the valve body.
As a further embodiment of the utility model, the wall body of the valve partition is provided with a plurality of pressure relief holes which are communicated with the pressure relief cavity and used for enabling the pressure relief cavity to be communicated with the external atmosphere.
The beneficial effects of the utility model include:
the pressure balance valve is connected with a remote regulation end through an air passage, the air pressure of the regulation end acts on the upper diaphragm to conduct downward pressure, the output port is communicated with the feedback cavity, the air pressure of the output port acts on the lower diaphragm to generate upward acting force, and the balance spring provides upward acting force through a sealing seat, a valve rod and other parts; when each effort is balanced each other, the balanced valve is in steady state, and when regulation and control end or output air pressure change, each effort unbalance, components such as case, valve rod, sealing seat can be opened under the promotion of each cavity effort, change the pressure of output to rebalance to guarantee output pressure automatic adjustment, dynamic balance, guarantee that output air pressure is stable controllable, realize the regulation outlet pressure of quick high accuracy. The balance valve has the advantages of quick response, accurate pressure regulation, simple and compact structure, convenient operation and the like, and can better meet the requirements of specific fields such as tire vulcanization shaping, large-pipe-diameter compressed air accurate pressure regulation and the like.
Drawings
Fig. 1 is a cross-sectional view of the overall structure of the present utility model.
In the figure: 1-upper membrane; 2-an upper cover; 3-valve core; 4-valve separation; 5-a lower membrane; 6-valve rod; 7-a valve body; 8, a sealing seat; 9-a balance spring; 10, a valve cap; 11-a regulation cavity; 12-a pressure release cavity; 13-a feedback chamber; 14-regulating end interface; 15-an input port; 16-output port.
Detailed Description
The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. 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.
In the description of the present utility model, it should be noted that the azimuth or positional relationship indicated by the terms "vertical", "horizontal", "inner", "outer", etc., are based on the azimuth or positional relationship shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or component referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model.
In addition, the technical features of the different embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.
Example 1
An adjustable high-precision pressure balance valve can quickly and accurately adjust outlet pressure, as shown in figure 1, an input port 15 is arranged on one side of a valve body 7, an output port 16 is arranged on the opposite side of the input port 15, and a gas path between the input port 15 and the output port 16 is a horizontal gas path;
the top of the valve body 7 is provided with an upper cover 2, a valve partition 4 is arranged between the valve body 7 and the upper cover 2, an upper diaphragm 1 is arranged between the upper cover 2 and the valve partition 4, a regulating cavity 11 is formed between the upper diaphragm 1 and the upper cover 2, a regulating end interface 14 communicated with the regulating cavity 11 is arranged on the upper cover 2, and the regulating end interface 14 is connected with a remote regulating end through an air path; a lower diaphragm 5 is arranged between the valve partition 4 and the valve body 7, and a feedback cavity 13 communicated with an output port 16 is formed between the lower diaphragm 5 and the valve body 7; a pressure release cavity 12 is formed between the lower diaphragm 5 and the upper diaphragm 1, and the pressure release cavity 12 is communicated with the external atmosphere through a plurality of pressure release holes formed in the wall body of the valve partition 4;
based on the above embodiment, since the valve partition 4 is provided between the valve body 7 and the upper cover 2 as a support for the upper membrane 1 and the lower membrane 5, once the membrane is damaged, the whole valve body is not required to be disassembled, and the lower membrane 5 is only required to be disassembled and replaced between the valve partition 4 and the valve body 7 or the upper membrane 1 is required to be disassembled and replaced between the valve partition 4 and the upper cover 2.
A valve core 3 which can vertically move along with the upper membrane 1 and the lower membrane 5 is arranged between the lower membrane 5 and the upper membrane 1, so that the effect of transmitting pressure is achieved, the bottom of the valve core 3 is opened, a cavity is arranged in the middle, and an opening communicated with the cavity and the pressure release cavity 12 is arranged on the wall body; the bottom opening of the valve core 3 is in separable contact with the top end of the valve rod 6, and in the process of decompression and exhaust, the valve core 3 is separated from the valve rod 6, so that the decompression and the exhaust can be quickly performed;
the stem of the valve rod 6 is arranged in the valve body 7 and between the input port 15 and the output port 16, the interior of the valve rod 6 is hollow, and a plurality of notches communicated with the interior of the stem are formed in the stem; the bottom end of the valve rod 6 is connected with the sealing seat 8 into a whole, the sealing seat 8 is arranged between the input port 15 and the output port 16, the top of the sealing seat 8 is in separable contact with the inner wall of the valve body 7, and when the two are in contact, a seal is formed between the input port 15 and the output port 16; when the two are separated, the input port 15 is communicated with the output port 16; the sealing seat 8 is slidably connected with a valve cap 10 connected to the bottom of the valve body 7, and a balance spring 9 is arranged between the bottom of the sealing seat 8 and the valve cap 10. Preferably, the air pressure in the sealing seat 8 is the same as the air pressure in the valve body 7, so that the opening and closing movement of the sealing seat is ensured to be smooth, and the resistance is reduced.
When the pressure in the regulating cavity 11 is increased by the remote regulating end through the regulating end interface 14, under the action of the pressure, the upper diaphragm 1 drives the valve core 3 to move downwards, the valve rod 6 and the sealing seat 8 are pushed to move downwards, the sealing seat 8 is separated from sealing contact with the inner wall of the valve body 7, the input port 15 is communicated with the output port 16, and the pressure of the output port 16 is increased; since the output port 16 and the feedback cavity 13 are communicated, the pressure of the feedback cavity 13 rises along with the rising of the pressure of the output port 16, and along with the rising of the pressure in the feedback cavity 13, the pressure of the feedback cavity 13 acts on the lower diaphragm 5 to generate upward pressure to push the valve core 3 to move upward, the valve rod 6 and the sealing seat 8 move upward under the action of the balance spring 9, and the acting forces of the upper diaphragm 1, the lower diaphragm 5 and the balance spring 9 are balanced again.
When the pressure of the output port 16 rises, the pressure in the feedback cavity 13 rises along with the rise, the upward acting force acting on the lower diaphragm 5 increases, the lower diaphragm 5 drives the valve core 3 to move upwards, the valve core 3 is out of contact with the valve rod 6, the feedback cavity 13 is communicated with the pressure release cavity 12 through the valve core 3, and the pressure release cavity 12 is communicated with the atmosphere. When the valve core 3 is separated from the valve rod 6, the feedback cavity 13 is communicated with the atmosphere, the feedback cavity 13 starts to exhaust and release pressure, and the output port 16 is communicated with the feedback cavity 13, so that the pressure of the output port 16 is reduced, and the purpose of automatic adjustment is achieved.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the utility model.
Claims (5)
1. An adjustable high-precision pressure balance valve is characterized by comprising a valve body (7), wherein one side of the valve body (7) is provided with an input port (15), and the opposite side of the input port (15) is provided with an output port (16); an upper cover (2) is arranged at the top of the valve body (7), a valve partition (4) is arranged between the valve body (7) and the upper cover (2), an upper diaphragm (1) is arranged between the upper cover (2) and the valve partition (4), a regulating cavity (11) is formed between the upper diaphragm (1) and the upper cover (2), a regulating end interface (14) communicated with the regulating cavity (11) is arranged on the upper cover (2), and the regulating end interface (14) is connected with a remote regulating end through an air path; a lower diaphragm (5) is arranged between the valve partition (4) and the valve body (7), and a feedback cavity (13) communicated with the output port (16) is formed between the lower diaphragm (5) and the valve body (7); a pressure release cavity (12) communicated with the external atmosphere is formed between the lower diaphragm (5) and the upper diaphragm (1), a valve core (3) capable of moving along with the upper diaphragm (1) and the lower diaphragm (5) is arranged between the lower diaphragm (5) and the upper diaphragm (1), the bottom of the valve core (3) is opened, a cavity is formed in the middle part of the valve core, and an opening communicated with the cavity and the pressure release cavity (12) is formed in the wall body; the bottom opening of the valve core (3) is in separable contact with the top end of the valve rod (6), a rod body of the valve rod (6) is arranged in the valve body (7) and is positioned between the input port (15) and the output port (16), the bottom end of the valve rod (6) is fixedly connected with the sealing seat (8), and the sealing seat (8) is arranged between the input port (15) and the output port (16) and is used for blocking the input port (15) from being communicated with the output port (16) or enabling the input port (15) to be communicated with the output port (16); the sealing seat (8) is connected with a valve cap (10) connected to the bottom of the valve body (7) in a sliding manner, and a balance spring (9) is arranged between the bottom of the sealing seat (8) and the valve cap (10).
2. An adjustable high-precision pressure balance valve according to claim 1, characterized in that the valve rod (6) is hollow and the rod body is provided with a plurality of notches communicated with the interior.
3. An adjustable high-precision pressure balance valve according to claim 1, characterized in that the top of the sealing seat (8) is in separable contact with the inner wall of the valve body (7), and when the sealing seat and the valve body are in contact, a seal is formed between the input port (15) and the output port (16); when the two are separated, the input port (15) is communicated with the output port (16).
4. An adjustable high-precision pressure balance valve according to claim 1, characterized in that the air pressure in the sealing seat (8) is the same as the air pressure in the valve body (7).
5. The adjustable high-precision pressure balance valve according to claim 1, wherein a plurality of pressure relief holes communicated with the pressure relief cavity (12) are formed in the wall body of the valve partition (4) so that the pressure relief cavity (12) can be communicated with the external atmosphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321697613.6U CN220249043U (en) | 2023-06-30 | 2023-06-30 | Adjustable high-precision pressure balance valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321697613.6U CN220249043U (en) | 2023-06-30 | 2023-06-30 | Adjustable high-precision pressure balance valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220249043U true CN220249043U (en) | 2023-12-26 |
Family
ID=89232835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321697613.6U Active CN220249043U (en) | 2023-06-30 | 2023-06-30 | Adjustable high-precision pressure balance valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220249043U (en) |
-
2023
- 2023-06-30 CN CN202321697613.6U patent/CN220249043U/en active Active
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