CN203718081U - Pressure regulating valve - Google Patents
Pressure regulating valve Download PDFInfo
- Publication number
- CN203718081U CN203718081U CN201320819313.0U CN201320819313U CN203718081U CN 203718081 U CN203718081 U CN 203718081U CN 201320819313 U CN201320819313 U CN 201320819313U CN 203718081 U CN203718081 U CN 203718081U
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- China
- Prior art keywords
- valve body
- balance
- cavity
- valve core
- air flow
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- Expired - Lifetime
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- 230000001105 regulatory effect Effects 0.000 title abstract 3
- 210000004907 gland Anatomy 0.000 claims description 15
- 238000007789 sealing Methods 0.000 claims description 9
- 238000010586 diagram Methods 0.000 description 6
- 230000003068 static effect Effects 0.000 description 3
- 230000033558 biomineral tissue development Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000001052 transient effect Effects 0.000 description 2
- 230000002153 concerted effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
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- Safety Valves (AREA)
Abstract
The utility model provides a pressure regulating valve which comprises an upper valve body, a lower valve body and a balance valve core, wherein the balance valve core is positioned in the internal cavity of the lower valve body, after the upper valve body is mounted on the lower valve body in a covering manner, an airflow cavity is formed between the inner side end surfaces of the lower valve body and the upper valve body, the tail end of the lower valve body is covered with an end cover, an air intake cavity and an air outlet cavity which are independent from each other are arranged inside the upper valve body, a drainage cavity is arranged in the central position of the balance valve core, and the front end of the drainage cavity is respectively communicated with the airflow cavity through side runners respectively. After the adoption of the pressure regulating valve, after passing through an air intake valve opening, air pressure can be changed; when air intake pressure is increased, the pressure inside the airflow cavity is increased, the pressure inside the drainage cavity is increased, and the balance valve core shifts under stress; when the pressure inside the drainage cavity equals the sum of the atmospheric pressure and spring force, the balance valve core can be balanced and the position is enabled to be stable. Therefore, when the size of a throttling surface is changed, the air flow rate at an external air outlet also varies, and the problem of fixed flow rate is avoided.
Description
Technical field
The utility model belongs to machining equipment field, is specially a kind of pressure regulator valve.
Background technique
At present, pressure adjusting structure is mainly divided into two classes, manual voltage regulation structure and automatic Regulation structure.The hand-operated pressure regulation appliance complex structure of present situation, when a certain force value is arrived in pressure regulation, the corresponding mouth that dams is stationary state.When suction pressure raises, outlet pressure also can raise accordingly and can not make outlet pressure be stabilized in certain limit; The automatic Regulation structure of present situation, when outlet pressure reaches setting value, rate of discharge is little.
Summary of the invention
In order to address the above problem, the utility model proposes a kind of pressure regulator valve, adopt after the utility model, it can regulate automatically according to the size of pressure, and simultaneously can flow automatic regulation.
A kind of pressure regulator valve, its technological scheme is such, it comprises upper valve body, lower valve body, balance valve core, described balance valve core is positioned at the internal cavity of described lower valve body, described upper valve body mounts cover after described lower valve body, between the inner side end of lower valve body and upper valve body, form air flow chamber, the end cap of described lower valve body is equipped with end cap, it is characterized in that: described upper valve body inside is provided with separately independently air-inlet cavity, outlet chamber, described air-inlet cavity is communicated with outer suction port, described outlet chamber is communicated with outside air outlet, the anterior evagination of described balance valve core also gos deep into described air flow chamber, the central position of described balance valve core has drainage lumens, the front end of described drainage lumens is communicated with air flow chamber by side runner respectively, the rear portion of balance valve core is boss gland structure, between the front end of described boss gland structure and air-flow cavity rear end wall, form atmosphere communicated cavity, described atmosphere communicated cavity is communicated with outside by the atmosphere connection port of sidepiece, between the front end of described boss gland structure and described air flow chamber aft bulkhead, be provided with balance spring, described drainage lumens runs through after described boss gland structure towards described end cap, on the inner side end of described upper valve body, have intake valve port, the valve port of giving vent to anger, described intake valve port faces the front-end face of described balance valve core, the both sides of described intake valve port are communicated with respectively described air flow chamber, air-inlet cavity, space between the front-end face of described intake valve port and described balance valve core forms throttleng surface, the both sides of the described valve port of giving vent to anger are communicated with respectively described air flow chamber, outlet chamber.
It is further characterized in that: the top of described balance valve core has gasket slot, in described gasket slot, be fastened with sealing gasket, the front-end face of described sealing gasket faces the outlet of described intake valve port, and the face area of described sealing gasket is greater than the discharge area of described intake valve port;
The scope in the space between the front-end face of described intake valve port and described balance valve core is: 0～1.6mm;
Described upper valve body inner side end evagination has foundation ring, the outer ring surface of described foundation ring, the outer ring surface of described end cap, the outer ring surface of described boss gland structure are, the bottom side of described air flow chamber all has seal groove, in described seal groove, plug is equipped with seal ring, the outer ring surface of described seal ring is close to the corresponding inwall of described lower valve body, and the inner ring surface of filling in the seal ring of the bottom side that is loaded on described air flow chamber is close to the corresponding outer wall of the front end of described equalizing piston;
Described end cap is fixed on the bottom of described lower valve body by jump ring;
Described upper valve body is connected by fastened by screw with described lower valve body.
Adopt after the utility model, air enters the utility model by outer suction port, air-inlet cavity successively, due to the existence of throttleng surface, air pressure after air pressure is by intake valve port can be changed, the air-flow after variation leaves the utility model by the valve port of giving vent to anger, outlet chamber, outside air outlet successively; When suction pressure increases, the pressure of air flow chamber also increases, because drainage lumens communicates with air flow chamber, so the pressure of drainage lumens also increases, thereby this just makes, balance valve core is stressed to be subjected to displacement, so lower valve body equals atmospheric pressure because have the pressure of atmosphere connection port atmosphere communicated cavity, when the pressure in drainage lumens equals atmospheric pressure and spring force sum, thereby balance valve core can reach balance gets off position stability, so the size of throttleng surface changes, thereby the flow of the air of outside air outlet also changes.Therefore the utility model is controlled conveniently, and has avoided the fixing problem of flow.
Accompanying drawing explanation
Fig. 1 is combination schematic diagram of the present utility model;
Fig. 2 is upper valve body schematic diagram of the present utility model;
Fig. 3 is lower valve body schematic diagram of the present utility model;
Fig. 4 is piston column schematic diagram of the present utility model;
Fig. 5 is fundamental diagram of the present utility model;
The stressed schematic diagram of balance valve core when Fig. 6 is the utility model work.
Embodiment
See Fig. 1 ~ Fig. 4, a kind of pressure regulator valve, it comprises upper valve body 1, lower valve body 2, balance valve core 3, upper valve body 1, lower valve body 2, the material of balance valve core 3 is metal or plastics, balance valve core 3 is positioned at the internal cavity of lower valve body 2, upper valve body 1 mounts cover after lower valve body 2, between the inner side end of lower valve body 2 and upper valve body 1, form air flow chamber 4, the end cap of lower valve body 2 is equipped with end cap 5, it is characterized in that: upper valve body 1 inside is provided with separately independently air-inlet cavity 6, outlet chamber 7, air-inlet cavity 6 is communicated with outer suction port 8, outlet chamber 7 is communicated with outside air outlet 9, the anterior evagination of balance valve core 3 also gos deep into air flow chamber 4, the central position of balance valve core 3 has drainage lumens 10, the front end of drainage lumens 10 is communicated with air flow chamber 4 by side runner 11 respectively, the rear portion of balance valve core 3 is boss gland structure 12, between the front end of boss gland structure 12 and air flow chamber 4 aft bulkheads, form atmosphere communicated cavity 13, atmosphere communicated cavity 13 is communicated with outside by the atmosphere connection port 14 of sidepiece, between the front end of boss gland structure 12 and air flow chamber 4 aft bulkheads, be provided with balance spring 15, drainage lumens 10 runs through after boss gland structure 12 towards end cap, on the inner side end of upper valve body 1, have intake valve port 16, the valve port 17 of giving vent to anger, intake valve port 16 faces the front-end face of balance valve core 3, the both sides of intake valve port 16 are communicated with respectively air flow chamber 4, air-inlet cavity 6, space between the front-end face of intake valve port 16 and balance valve core 3 forms throttleng surface A, the scope in the space between the front-end face of intake valve port 16 and balance valve core 3 is 0 ~ 1.6mm, the give vent to anger both sides of valve port 17 are communicated with respectively air flow chamber 4, outlet chamber 7, the top of balance valve core 3 has gasket slot 18, is fastened with sealing gasket 19 in gasket slot 18, and the front-end face of sealing gasket 19 faces the outlet of intake valve port 16, and the face area of sealing gasket 19 is greater than the discharge area of intake valve port 16, upper valve body 1 is arranged with foundation ring 20, and the outer ring surface of foundation ring 20 and end cap 5 all has O type seal groove 21, in O type seal groove 21, is fastened with O RunddichtringO, the bottom of the outer ring surface of boss gland structure 12, air flow chamber 4 has U-shaped seal groove 22, in U-shaped seal groove, be fastened with U-shaped seal ring, the outer ring surface of O RunddichtringO and U-shaped seal groove 22 is all close to the corresponding inwall of lower valve body 2, and the inner ring surface of the U-shaped seal ring 22 of the bottom of air flow chamber 4 is close to the corresponding outer wall of the front end of balance valve core 3, end cap 5 is fixed on the bottom of lower valve body 2 by jump ring 23.
See Fig. 5 and Fig. 6, incoming pressure P1 is through outer suction port 8 to air-inlet cavity 6(Q1), after throttleng surface A, flow to air flow chamber 4(Q2), because the actuating pressure of throttleng surface A drops to P2 by P1, flow is V, through outside air outlet 9, flow out again, wherein, flow to air flow chamber 4(Q2) in the drainage lumens 10 of pressure by balance valve core 3 flow into pressure feedback chamber Q3, the spring force of balance spring 15 and atmospheric pressure make a concerted effort with Q3 in the mutual balance of pressure.In Q3, mineralization pressure F2=P2 * S2(S2 is the useful area of the feedback face 24 on P2 actuating pressure balance valve core 3), atmosphere communicated cavity 13(Q4) (P0 is atmospheric pressure to interior mineralization pressure F0=P0 * S0, S0 is the area of the acting surface 25 of atmospheric equilibrium pressure-acting on pressure balance 3), the spring force of balance spring 15 is F, and when F2=F0+F, balance valve core 3 is static.
When incoming pressure P1 increases, the pressure that transient flow is crossed throttleng surface A also can increase, and P2 also can increase accordingly, and the pressure in Q3 is that F2 also increases, and F2 > F0+F has now destroyed the balance of balance valve core 3.Under the effect of F2 power, balance valve core 3 moves towards the direction of upper valve body 1.When the distance of throttleng surface A reduces, P2 will diminish accordingly.Meanwhile, because the length of balance spring 15 has played variation, the spring force F that it produces is respective change also, until F2 is when again equate with F0+F, balance valve core 3 reaches new balance static.After such adjusting, P2 is stable within the specific limits, and rate of discharge is also stabilized in certain scope through the throttling adjustment of throttleng surface A.
When incoming pressure P1 reduces, the pressure that transient flow is crossed throttleng surface A also can reduce, and P2 also can reduce accordingly, and the pressure in Q3 is that F2 reduces, and F2 < F0+F has now destroyed the balance of balance valve core 3.Under the effect of F0+F power, balance valve core 3 moves towards the direction of end cap 5.When throttleng surface A increases, P2 will increase accordingly.Meanwhile, because the length of balance spring 15 has played variation, the spring force F that it produces is respective change also, until F2=F0+F is when again equate, balance valve core 3 reaches new balance static.After such adjusting, P2 is stable within the specific limits, and rate of discharge is also stabilized in certain scope through the throttling adjustment of throttleng surface A.
Claims (6)
1. a pressure regulator valve, it comprises upper valve body, lower valve body, balance valve core, described balance valve core is positioned at the internal cavity of described lower valve body, described upper valve body mounts cover after described lower valve body, between the inner side end of lower valve body and upper valve body, form air flow chamber, the end cap of described lower valve body is equipped with end cap, it is characterized in that: described upper valve body inside is provided with separately independently air-inlet cavity, outlet chamber, described air-inlet cavity is communicated with outer suction port, described outlet chamber is communicated with outside air outlet, the anterior evagination of described balance valve core also gos deep into described air flow chamber, the central position of described balance valve core has drainage lumens, the front end of described drainage lumens is communicated with air flow chamber by side runner respectively, the rear portion of balance valve core is boss gland structure, between the front end of described boss gland structure and air-flow cavity rear end wall, form atmosphere communicated cavity, described atmosphere communicated cavity is communicated with outside by the atmosphere connection port of sidepiece, between the front end of described boss gland structure and described air flow chamber aft bulkhead, be provided with balance spring, described drainage lumens runs through after described boss gland structure towards described end cap, on the inner side end of described upper valve body, have intake valve port, the valve port of giving vent to anger, described intake valve port faces the front-end face of described balance valve core, the both sides of described intake valve port are communicated with respectively described air flow chamber, air-inlet cavity, space between the front-end face of described intake valve port and described balance valve core forms throttleng surface, the both sides of the described valve port of giving vent to anger are communicated with respectively described air flow chamber, outlet chamber.
2. a kind of pressure regulator valve according to claim 1, it is characterized in that: the top of described balance valve core has gasket slot, in described gasket slot, be fastened with sealing gasket, the front-end face of described sealing gasket faces the outlet of described intake valve port, and the face area of described sealing gasket is greater than the discharge area of described intake valve port.
3. a kind of pressure regulator valve according to claim 2, is characterized in that: the scope in the space between the front-end face of described intake valve port and described balance valve core is: 0～1.6mm.
4. a kind of pressure regulator valve according to claim 1, it is characterized in that: described upper valve body inner side end evagination has foundation ring, the outer ring surface of described foundation ring, the outer ring surface of described end cap, the outer ring surface of described boss gland structure are, the bottom side of described air flow chamber all has seal groove, in described seal groove, plug is equipped with seal ring, the outer ring surface of described seal ring is close to the corresponding inwall of described lower valve body, and the inner ring surface of filling in the seal ring of the bottom side that is loaded on described air flow chamber is close to the corresponding outer wall of the front end of described equalizing piston.
5. a kind of pressure regulator valve according to claim 1, is characterized in that: described end cap is fixed on the bottom of described lower valve body by jump ring.
6. a kind of pressure regulator valve according to claim 1, is characterized in that: described upper valve body is connected by fastened by screw with described lower valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320819313.0U CN203718081U (en) | 2013-12-13 | 2013-12-13 | Pressure regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320819313.0U CN203718081U (en) | 2013-12-13 | 2013-12-13 | Pressure regulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203718081U true CN203718081U (en) | 2014-07-16 |
Family
ID=51157232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320819313.0U Expired - Lifetime CN203718081U (en) | 2013-12-13 | 2013-12-13 | Pressure regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203718081U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103672079A (en) * | 2013-12-13 | 2014-03-26 | 派克汉尼汾动力传动产品（无锡）有限公司 | Pressure adjusting valve |
| CN104500757A (en) * | 2014-12-31 | 2015-04-08 | 派克汉尼汾动力传动产品（无锡）有限公司 | Novel regulating valve structure |
-
2013
- 2013-12-13 CN CN201320819313.0U patent/CN203718081U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103672079A (en) * | 2013-12-13 | 2014-03-26 | 派克汉尼汾动力传动产品（无锡）有限公司 | Pressure adjusting valve |
| CN104500757A (en) * | 2014-12-31 | 2015-04-08 | 派克汉尼汾动力传动产品（无锡）有限公司 | Novel regulating valve structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140716 |