CN105156728A - Pressure regulating mechanism - Google Patents
Pressure regulating mechanism Download PDFInfo
- Publication number
- CN105156728A CN105156728A CN201510659672.8A CN201510659672A CN105156728A CN 105156728 A CN105156728 A CN 105156728A CN 201510659672 A CN201510659672 A CN 201510659672A CN 105156728 A CN105156728 A CN 105156728A
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- CN
- China
- Prior art keywords
- piston
- valve
- pressure
- valve seat
- spring
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- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/20—Excess-flow valves
Abstract
The invention discloses a pressure regulating mechanism which comprises a mechanism body and a piston assembly and a valve seat assembly which are arranged in the mechanism body. The internal space of the mechanism body is divided into an upper chamber, a middle chamber and a lower chamber through the piston assembly and the valve seat assembly; the mechanism body is provided with an atmosphere exhaust opening communicated with the upper chamber, an output opening communicated with the middle chamber and an input opening communicated with the lower chamber; pressure regulating springs are arranged above the piston assembly, the upper ends of the pressure regulating springs abut against the lower end face of a spring seat, a regulating mechanism is arranged on the spring seat, and a support spring is arranged under the valve seat assembly. According to the pressure regulating mechanism, through cooperation of the piston assembly and the valve seat assembly, the pressure of high-pressure gas entering from the input opening can be reduced to a set value, and then the high-pressure gas is output from the output opening; when the pressure of the output opening is higher than the set value, compressed gas of the output opening can be exhausted from an inlet introducing atmosphere to reduce the pressure of the output opening to the set value, and therefore the purpose of keeping the pressure of the output opening of the mechanism at the set value is achieved.
Description
Technical field
The present invention relates to a kind of pressure-regulating device.
Background technique
In pneumatic industry, be the most basic requirement to the control of gas pressure intensity, therefore design a kind ofly to adjust accurately, pressure-regulating device that reliability is high is the key realizing controlling gas pressure intensity.
Summary of the invention
The object of the invention is to: for above-mentioned Problems existing, provide a kind of and the pressure of pressurized gas can be reduced to desirable value, and keep the pressure of low voltage terminal to be the pressure-regulating device of limit value.
Technological scheme of the present invention is achieved in that a kind of pressure-regulating device, it is characterized in that: comprise body and arrange in vivo piston composition and valve seat form, body inner space is divided into upper chamber by described piston composition and valve seat composition, middle part chamber and lower chamber, described body is provided with the row's atmospheric air port be communicated with upper chamber, with the delivery outlet of middle part chamber and the inlet opening that is communicated with lower chamber, described piston composition comprises the piston of band central through bore, pressure adjusting spring is provided with above described piston, described pressure adjusting spring lower end abutment is in piston upper-end surface, its upper end is resisted against spring seat lower end surface, regulating mechanism is provided with above described spring seat, the lower end of described regulating mechanism is pressed on spring seat upper-end surface, described valve seat composition comprises valve and valve seat, described valve seat is fixed on body inwall, supported spring is provided with below described valve, described supported spring upper end is resisted against the lower end surface of valve, its lower end abutment is bottom in vivo, the bottom of described valve coordinates the opening and closing of valve port on control valve seat with valve seat, the upper end of described valve coordinates the opening and closing of central through bore on control piston with piston.
Pressure-regulating device of the present invention, regulating mechanism described in it comprises adjustment screw rod, described adjustment screw rod lower end is through the upper-end surface being resisted against spring seat after body, described adjustment screw rod is threaded with body, it is made to move up and down relative to body by rotating adjustment screw rod, to promote the pre compressed magnitude that spring seat changes pressure adjusting spring, the elastic force of described pressure adjusting spring acts on piston, and described piston is against in backstop in vivo.
Pressure-regulating device of the present invention, it is provided with circular groove at described piston lower surface, rubber surface A is provided with in described circular groove, the upper end of described valve is resisted against rubber surface A place, the round platform upper surface of described valve bottom is provided with annular groove, in described annular groove, be provided with rubber surface B, the valve port place on described valve seat is corresponding with rubber surface B.
Pressure-regulating device of the present invention, it is provided with annular mounting groove at described piston circumferential surface, in described annular mounting groove, be provided with O-ring seals.
Pressure-regulating device of the present invention, it is when zero load and air-suction state, and described valve and valve seat are thrown off, and described inlet opening is communicated with delivery outlet, and the central through bore on described piston is closed; When state of equilibrium, the pressurized gas pressure of delivery outlet reaches setting value, and the central through bore on the valve port of described valve seat and piston is all in closed condition; When exhaust condition, the pressurized gas pressure of delivery outlet is greater than setting value, and described valve and piston are thrown off, and described delivery outlet is communicated with row's atmospheric air port, and the valve port of described valve seat is closed.
The cooperation that the present invention consists of piston composition and valve seat, export from delivery outlet after the pressure of the pressurized gas that inlet opening can be entered is reduced to set value, and when delivery outlet pressure is higher than setting value, delivery outlet pressurized gas can be discharged from open to atmosphere interface again, delivery outlet pressure is reduced to setting value, thus the pressure realizing keeping this mechanism's delivery outlet is the object of setting value.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention when zero load and air-suction state.
Fig. 2 is the structural representation of the present invention when state of equilibrium.
Fig. 3 is the structural representation of the present invention when exhaust condition.
Mark in figure: 1 is body, and 1a is upper chamber, and 1b is middle part chamber, 1c is lower chamber, and 2a is row's atmospheric air port, and 2b is delivery outlet, 2c is inlet opening, through hole centered by 3, and 4 is O-ring seals, 5 is piston, and 6 is pressure adjusting spring, and 7 is spring seat, 8 is valve, and 9 is valve seat, and 10 is supported spring, 11 is adjustment screw rod, and 12 is rubber surface A, and 13 is rubber surface B.
Embodiment
Below in conjunction with accompanying drawing, this present invention is described in detail.
In order to make object of the present invention, technological scheme and advantage clearly understand, below in conjunction with drawings and Examples, this present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain this present invention, be not intended to limit the present invention.
As shown in Figure 1, a kind of pressure-regulating device, the piston composition comprising body 1 and be arranged in body 1 and valve seat composition, body 1 inner space is divided into upper chamber 1a by described piston composition and valve seat composition, middle part chamber 1b and lower chamber 1c, described body 1 is provided with the row's atmospheric air port 2a be communicated with upper chamber 1a, the delivery outlet 2b be communicated with middle part chamber 1b and the inlet opening 2c be communicated with lower chamber 1c, described piston composition comprises the piston 5 of band central through bore 3, described piston 5 circumferential surface is provided with annular mounting groove, O-ring seals 4 is provided with in described annular mounting groove, pressure adjusting spring 6 is provided with above described piston 5, described pressure adjusting spring 6 lower end abutment is in piston 5 upper-end surface, its upper end is resisted against spring seat 7 lower end surface, regulating mechanism is provided with above described spring seat 7, the lower end of described regulating mechanism is pressed on spring seat 7 upper-end surface, described valve seat composition comprises valve 8 and valve seat 9, described valve seat 9 is fixed on body 1 inwall, supported spring 10 is provided with below described valve 8, described supported spring 10 upper end is resisted against the lower end surface of valve 8, its lower end abutment is at body 1 inner bottom part, described piston 5 lower end surface is provided with circular groove, rubber surface A12 is provided with in described circular groove, the upper end of described valve 8 is resisted against rubber surface A12 place, the round platform upper surface of described valve 8 bottom is provided with annular groove, rubber surface B13 is provided with in described annular groove, valve port place on described valve seat 9 is corresponding with rubber surface B13, the bottom of described valve 8 coordinates the opening and closing of valve port on control valve seat 9 with valve seat 9, the upper end of described valve 8 coordinates the opening and closing of central through bore 3 on control piston 5 with piston 5.
Wherein, described regulating mechanism comprises adjustment screw rod 11, described adjustment screw rod 11 lower end is through the upper-end surface being resisted against spring seat 7 after body 1, described adjustment screw rod 11 is threaded with body 1, it is made to move up and down relative to body 1 by rotating adjustment screw rod 11, to promote the pre compressed magnitude that spring seat 7 changes pressure adjusting spring 6, the elastic force of described pressure adjusting spring 6 acts on piston 5, and described piston 5 is resisted against in the backstop in body 1.
Working principle of the present invention is:
As shown in Figure 1, when zero load and air-suction state, after adjustment screw rod is adjusted to the right place, pressure adjusting spring obtains certain pre compressed magnitude, and the elastic force of pressure adjusting spring promotes piston and moves down, and promotes valve away from valve seat, inlet opening is made to be in open state to the path of piston lower portion chamber and delivery outlet, and the central through bore on described piston is closed, the path of the pressurized gas that inlet opening enters through opening enters lower chamber, and is exported by delivery outlet.
Along with pressurized gas enter the chamber below piston, the pressurized gas pressure of piston lower chamber rises gradually, thus promoted piston moves by gas pressure, now valve is promoted to follow on piston to move by supported spring, when valve moves to contact with valve seat time, then close the path that inlet opening pressurized gas enter middle part chamber, also stop being exported by delivery outlet simultaneously, now the pressurized gas pressure of delivery outlet reaches setting value, as shown in Figure 2, the central through bore now on the valve port of described valve seat and piston is all in closed condition.
As shown in Figure 3, when exhaust condition, the pressurized gas pressure of delivery outlet is greater than setting value, the gas pressure of piston lower chamber promotes piston moves, because valve contacts with valve seat, cannot follow on piston and move, therefore valve and piston are thrown off, make the central through bore of delivery outlet pressurized gas on piston enter air by arranging atmospheric air port, thus reduce middle part chamber and delivery outlet pressurized gas pressure.Along with the reduction of piston lower chamber pressurized gas pressure, piston moves down gradually, when be displaced downwardly to contact with valve time, central through bore on piston is closed, and exhaust stops, and now the pressurized gas pressure of delivery outlet reaches setting value, as shown in Figure 2, state of equilibrium is restored to.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. a pressure-regulating device, it is characterized in that: comprise body (1) and be arranged in body (1) piston composition and valve seat form, body (1) inner space is divided into upper chamber (1a) by described piston composition and valve seat composition, middle part chamber (1b) and lower chamber (1c), described body (1) is provided with the row's atmospheric air port (2a) be communicated with upper chamber (1a), the delivery outlet (2b) be communicated with middle part chamber (1b) and the inlet opening (2c) be communicated with lower chamber (1c), described piston composition comprises the piston (5) of band central through bore (3), described piston (5) top is provided with pressure adjusting spring (6), described pressure adjusting spring (6) lower end abutment is in piston (5) upper-end surface, its upper end is resisted against spring seat (7) lower end surface, described spring seat (7) top is provided with regulating mechanism, the lower end of described regulating mechanism is pressed on spring seat (7) upper-end surface, described valve seat composition comprises valve (8) and valve seat (9), described valve seat (9) is fixed on body (1) inwall, described valve (8) below is provided with supported spring (10), described supported spring (10) upper end is resisted against the lower end surface of valve (8), its lower end abutment is at body (1) inner bottom part, the bottom of described valve (8) coordinates the opening and closing of the upper valve port of control valve seat (9) with valve seat (9), the upper end of described valve (8) coordinates the opening and closing of the upper central through bore (3) of control piston (5) with piston (5).
2. pressure-regulating device according to claim 1, it is characterized in that: described regulating mechanism comprises adjustment screw rod (11), described adjustment screw rod (11) lower end is through the upper-end surface being resisted against spring seat (7) after body (1), described adjustment screw rod (11) is threaded with body (1), it is made to move up and down relative to body (1) by rotating adjustment screw rod (11), to promote the pre compressed magnitude that spring seat (7) changes pressure adjusting spring (6), the elastic force of described pressure adjusting spring (6) acts on piston (5), described piston (5) is resisted against in the backstop in body (1).
3. pressure-regulating device according to claim 2, it is characterized in that: described piston (5) lower end surface is provided with circular groove, rubber surface A(12 is provided with) in described circular groove, the upper end of described valve (8) is resisted against rubber surface A(12) place, the round platform upper surface of described valve (8) bottom is provided with annular groove, rubber surface B(13 is provided with in described annular groove), the valve port place on described valve seat (9) and rubber surface B(13) corresponding.
4. pressure-regulating device according to claim 3, is characterized in that: described piston (5) circumferential surface is provided with annular mounting groove, is provided with O-ring seals (4) in described annular mounting groove.
5. pressure-regulating device as claimed in any of claims 1 to 4, it is characterized in that: when zero load and air-suction state, described valve (8) and valve seat (9) are thrown off, and described inlet opening (2c) is communicated with delivery outlet (2b), and the central through bore (3) on described piston (5) is closed; When state of equilibrium, the pressurized gas pressure of delivery outlet reaches setting value, and the central through bore (3) on the valve port of described valve seat (9) and piston (5) is all in closed condition; When exhaust condition, the pressurized gas pressure of delivery outlet is greater than setting value, and described valve (8) and piston (5) are thrown off, and described delivery outlet (2b) is communicated with row's atmospheric air port (2a), and the valve port of described valve seat (9) is closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510659672.8A CN105156728B (en) | 2015-10-14 | 2015-10-14 | A kind of pressure regulating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510659672.8A CN105156728B (en) | 2015-10-14 | 2015-10-14 | A kind of pressure regulating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105156728A true CN105156728A (en) | 2015-12-16 |
| CN105156728B CN105156728B (en) | 2017-11-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510659672.8A Active CN105156728B (en) | 2015-10-14 | 2015-10-14 | A kind of pressure regulating device |
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| CN (1) | CN105156728B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105857287A (en) * | 2016-05-31 | 2016-08-17 | 眉山中车制动科技股份有限公司 | Pressure limiting mechanism for railway brake valve |
| CN108475078A (en) * | 2016-01-21 | 2018-08-31 | Itt制造企业有限责任公司 | Natural pressure draught control mechanism with adjustable seating |
| CN110486511A (en) * | 2019-09-06 | 2019-11-22 | 新乡航空工业(集团)有限公司 | A kind of pressure regulator valve |
| CN113371524A (en) * | 2021-06-30 | 2021-09-10 | 崴思新材料泰州有限公司 | Multilayer sticky tape coincide coiling machine |
| CN114059632A (en) * | 2021-12-27 | 2022-02-18 | 广东世冠威卫浴有限公司 | Closestool flushing air control device and closestool |
| CN114684787A (en) * | 2022-03-22 | 2022-07-01 | 武汉理工大学 | Hydrogen production device capable of buffering pyrolysis gas and using method thereof |
| CN116044345A (en) * | 2023-01-07 | 2023-05-02 | 江苏苏盐阀门机械有限公司 | Be applied to oil recovery from shut-off valve |
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| CN101625043A (en) * | 2009-08-13 | 2010-01-13 | 凯迈（洛阳）气源有限公司 | High-pressure reducing valve |
| JP2010102534A (en) * | 2008-10-24 | 2010-05-06 | Nok Corp | Pressure regulating valve |
| CN202972067U (en) * | 2012-11-12 | 2013-06-05 | 湛江市澳佳盛潜水设备有限公司 | Gas decompressor |
| CN203823164U (en) * | 2014-03-12 | 2014-09-10 | 王光辉 | Pressure regulating valve |
| CN205090036U (en) * | 2015-10-14 | 2016-03-16 | 四川制动科技股份有限公司 | Pressure adjusting mechanism |
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2015
- 2015-10-14 CN CN201510659672.8A patent/CN105156728B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010102534A (en) * | 2008-10-24 | 2010-05-06 | Nok Corp | Pressure regulating valve |
| CN101625043A (en) * | 2009-08-13 | 2010-01-13 | 凯迈（洛阳）气源有限公司 | High-pressure reducing valve |
| CN202972067U (en) * | 2012-11-12 | 2013-06-05 | 湛江市澳佳盛潜水设备有限公司 | Gas decompressor |
| CN203823164U (en) * | 2014-03-12 | 2014-09-10 | 王光辉 | Pressure regulating valve |
| CN205090036U (en) * | 2015-10-14 | 2016-03-16 | 四川制动科技股份有限公司 | Pressure adjusting mechanism |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108475078A (en) * | 2016-01-21 | 2018-08-31 | Itt制造企业有限责任公司 | Natural pressure draught control mechanism with adjustable seating |
| CN108475078B (en) * | 2016-01-21 | 2021-04-06 | Itt制造企业有限责任公司 | Natural gas pressure regulator with adjustable valve seat |
| CN105857287A (en) * | 2016-05-31 | 2016-08-17 | 眉山中车制动科技股份有限公司 | Pressure limiting mechanism for railway brake valve |
| CN105857287B (en) * | 2016-05-31 | 2019-01-08 | 眉山中车制动科技股份有限公司 | A kind of railway brake valve limiting mechanism of pressure |
| CN110486511A (en) * | 2019-09-06 | 2019-11-22 | 新乡航空工业(集团)有限公司 | A kind of pressure regulator valve |
| CN113371524A (en) * | 2021-06-30 | 2021-09-10 | 崴思新材料泰州有限公司 | Multilayer sticky tape coincide coiling machine |
| CN114059632A (en) * | 2021-12-27 | 2022-02-18 | 广东世冠威卫浴有限公司 | Closestool flushing air control device and closestool |
| CN114684787A (en) * | 2022-03-22 | 2022-07-01 | 武汉理工大学 | Hydrogen production device capable of buffering pyrolysis gas and using method thereof |
| CN114684787B (en) * | 2022-03-22 | 2023-09-26 | 武汉理工大学 | Hydrogen production device capable of buffering pyrolysis gas and application method thereof |
| CN116044345A (en) * | 2023-01-07 | 2023-05-02 | 江苏苏盐阀门机械有限公司 | Be applied to oil recovery from shut-off valve |
| CN116044345B (en) * | 2023-01-07 | 2023-09-01 | 江苏苏盐阀门机械有限公司 | Be applied to oil recovery from shut-off valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105156728B (en) | 2017-11-21 |
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Address after: Three road 620010 Meishan province Sichuan City Dongpo District of Meishan science and Technology Industrial Park No. 68 Applicant after: Meisha Zhongke Brake Technology Co., Ltd. Address before: Three road 620010 Meishan province Sichuan City Dongpo District of Meishan science and Technology Industrial Park No. 68 Applicant before: Sichuan Brake Science and Technology Co. Ltd. |
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