CN109667966A - A kind of automatic pressure regulating mechanism - Google Patents
A kind of automatic pressure regulating mechanism Download PDFInfo
- Publication number
- CN109667966A CN109667966A CN201910000653.2A CN201910000653A CN109667966A CN 109667966 A CN109667966 A CN 109667966A CN 201910000653 A CN201910000653 A CN 201910000653A CN 109667966 A CN109667966 A CN 109667966A
- Authority
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- China
- Prior art keywords
- pressure
- screw rod
- regulator valve
- rack
- regulating mechanism
- Prior art date
- 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
-
- 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
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/06—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with special arrangements for adjusting the opening pressure
-
- 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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The invention discloses a kind of automatic pressure regulating mechanisms comprising: rack；The pressure regulator valve being installed in rack, lower end are provided with pressure regulation executive device, are moved up and down by the pressure regulation executive device and pressure size is adjusted；It is installed on the driving device in rack and being located at below pressure regulator valve, is acted in pressure regulation executive device, to move up and down for controlling pressure regulation executive device.The present invention being arranged using the above structure, driving device is installed on to the lower section of pressure regulator valve, it is set to dock the pressure regulation executive device of pressure regulator valve lower end, gravity suffered by diaphragm and spring is overcome by driving device, thus upwards, move downward only be driven device effect, for traditional structure, gravity is avoided on pressure controlled influence, pressure controlling precision is higher, is conducive to the reliability for improving testing result, practical.
Description
Technical field
The invention belongs to pressure adjustment device technical fields, and in particular to a kind of automatic pressure regulating mechanism.
Background technique
Pressure regulator valve can be described as pressure reducing valve substantially, be broadly divided into two kinds of structures of diaphragm type and piston type, diaphragm type structure one
As be used for gas medium, piston cylinder operator is generally used for liquid medium, its working principles are as follows: high-pressure medium passes through an aperture
It is charged in a relatively large chamber and realizes decompression, then shut off decompression by diaphragm or piston, the movement of control diaphragm or piston
Realize the adjusting of pressure size.Wherein, the pressure regulator valve of diaphragm type structure be provided on the outside of diaphragm can opposing diaphragms movement
Adjustment seat, the adjustment seat have one to extend control terminal outside valve body, spring are provided between adjustment seat and diaphragm.It is needing
When adjusting pressure, drive adjustment seat relative to diaphragm close to or far from controlling diaphragm deformation by control terminal, and then realize and cut
Flow control.
In some automatic detection systems, it is provided with the driving device of docking pressure regulator valve control terminal, passes through driving device
Automatic Regulation function is realized in the movement for controlling to adjust seat.However, being that driving device is installed on pressure regulator valve in traditional architectures
Top makes control terminal dock driving device upward.The set-up mode is since diaphragm, spring are affected by gravity, actual pressure
There are deviations for value and theoretical pressure value, cannot achieve and are precisely controlled.And pressure regulator valve is affected by gravity due to diaphragm, spring, is pressed
Power just can not again be turned down after turning down to a certain extent, can not be adjusted to zero, in some situations, it is desirable that pressure from greatly turn down to
In the case where zero, just it cannot achieve.And in traditional structure, the control terminal of driving device and pressure regulator valve can not cooperate work well
Make, regulating effect is undesirable.
Summary of the invention
To solve the above-mentioned problems, the present invention provides a kind of automatic pressure regulating mechanism, and driving device is installed on pressure regulator valve
Lower end, to solve gravity to pressure controlled influence.
The technical solution adopted by the present invention to solve the technical problems is: a kind of automatic pressure regulating mechanism comprising:
Rack；
The pressure regulator valve being installed in rack, lower end are provided with pressure regulation executive device, by the pressure regulation executive device
It is lower to move adjustable pressure size；
It is installed on the driving device in rack and being located at below pressure regulator valve, is acted in pressure regulation executive device, to be used for
Pressure regulation executive device is controlled to move up and down.
Preferably, the driving device includes the driving of a screw rod being arranged in rack vertically and a transmission connection screw rod
Dock pressure regulation executive device in the upper end of motor, the screw rod.
Preferably, the driving motor and screw rod coaxially arrange and are installed on the lower section of screw rod, the driving motor it is defeated
Shaft upward and is fixedly installed a sleeve being socketed on the outside of screw rod, and vertical sliding slot, the silk are offered on the sleeve
One positioning pin for passing through sliding slot is installed on bar.
Preferably, the monitoring device for the rotation of monitoring driving device is provided in the rack.
Preferably, the monitoring device is installed on the outside of sleeve, is provided with one and screw rod on the outside of the driving device
The monitored portion rotated synchronously, the monitoring device monitor the rotation of screw rod by monitoring monitored portion.
Preferably, the end of the positioning pin passes through sliding slot and extends the outside of sleeve, and the monitored portion is installed on
The end of positioning pin.
Preferably, the pressure regulator valve is internally provided with the film that elastic deformation can occurs along the vertical direction and adjust pressure
Piece, the pressure regulation executive device include positioned at diaphragm lower end and abutting the spring of diaphragm and being connected to lower spring end and can transport up and down
Dynamic tabletting, the driving device act in tabletting, to control tabletting up and down motion.
The beneficial effects of the present invention are: docking it under pressure regulator valve firstly, driving device to be installed on to the lower section of pressure regulator valve
The pressure regulation executive device at end avoids gravity to pressure controlled influence for traditional structure, and pressure controlling precision is higher,
Be conducive to improve the reliability of testing result；The diaphragm of pressure regulator valve, spring can also be overcome since self weight causes pressure that can not adjust
The shortcomings that section is to zero.Secondly, driving device can effectively reduce the reliability of abrasion, raising elevating movement by screw rod transmission, compared with
The service life is longer for slide bar type structure；Also, driving motor drives screw rod to rotate by sleeve and positioning pin, can effectively increase
The stability being driven by force, the service life is longer.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples:
Fig. 1 is cross-sectional view of the invention；
Fig. 2 is the operation schematic diagram of driving device in the present invention；
Fig. 3 is the scheme of installation of driving device in the present invention；
Fig. 4 is the structural schematic diagram of rack in the present invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.Therefore, below to the reality of the invention provided in the accompanying drawings
The detailed description for applying example is not intended to limit the range of claimed invention, but is merely representative of selected implementation of the invention
Example.
Referring to Fig.1~Fig. 4, the present invention disclose a kind of automatic pressure regulating mechanism comprising:
Rack；
The pressure regulator valve 1 being installed in rack, lower end are provided with pressure regulation executive device, by the pressure regulation executive device
It is lower to move adjustable pressure size；
It is installed in rack and is located at the driving device of 1 lower section of pressure regulator valve, is acted in pressure regulation executive device, to be used for
Pressure regulation executive device is controlled to move up and down.
Wherein the pressure regulator valve 1 be diaphragm type structure, specifically, the pressure regulator valve 1 have inlet end, outlet side be connected into
The inner flow passage at gas end and outlet side is provided with the diaphragm that elastic deformation can occurs along the vertical direction and adjust pressure in the runner
7, the upper surface of the diaphragm 7 is docked with inner flow passage.The pressure regulation executive device includes positioned at 7 lower end of diaphragm and abutting diaphragm 7
Spring 5 and the tabletting 6 that is connected to 5 lower end of spring and can move up and down, the driving device act in tabletting 6, with control
Tabletting 6 moves up and down.Since the structure of pressure regulator valve 1 has been disclosed in the prior art, therefore the setting of its inner flow passage is not made herein
It repeats.
Driving device is installed on the lower section of pressure regulator valve 1 by the present invention being arranged using the above structure, it is made to dock pressure regulator valve
Gravity suffered by the pressure regulation executive device of 1 lower end, diaphragm 7 and spring 5 is overcome by driving device, thus upwards, move downward
It is only driven device effect, for traditional structure, avoids gravity to pressure controlled influence, pressure controlling precision is higher,
The reliability for being conducive to improve testing result, the diaphragm that can also overcome pressure regulator valve, spring are since self weight causes pressure that can not adjust
The shortcomings that section is to zero, it is practical.
Preferably, the driving device includes the drive of a screw rod 4 being arranged in rack vertically and a transmission connection screw rod 4
The upper end of dynamic motor 2, the screw rod 4 passes through pressure regulator valve 1 and abuts the lower end surface of tabletting 6, to dock pressure regulation executive device.Tool
Body, which uses stepper motor, the driving motor 2 and the coaxial lower section arranged and be installed on screw rod 4 of screw rod 4,
The output shaft of the driving motor 2 upward and is fixedly installed a sleeve 3 for being socketed on the outside of screw rod 4, opens up on the sleeve 3
There is vertical sliding slot 301, a positioning pin 9 for passing through sliding slot 301 is installed on the screw rod 4.In order to reduce positioning pin 9 by
Power prolongs the service life, and the both ends of positioning pin 9 are pierced by screw rod 4 and extend outside, and the both ends of positioning pin 9 are corresponded on sleeve 3
Offer two sliding slots 301.
Its working mechanism is as follows: when driving motor 2 rotates, output shaft and sleeve 3 are rotated synchronously, and sleeve 3 passes through cunning
301 side wall of slot abuts positioning pin 9 to drive positioning pin 9 to rotate, and then screw rod 4 is driven to rotate, so that screw rod 4 moves up and down, pressure
Piece 6 follows the upper end of screw rod 4 to move up and down, and is acted on diaphragm 7 by spring 5, so that diaphragm 7 moves up and down to adjust pressure regulation
The pressure of valve 1.
The driving device is driven by screw rod 4, the reliability that can be effectively reduced abrasion, improve elevating movement, compared with slide bar type
The service life is longer for structure.Also, driving motor 2 drives screw rod 4 to rotate by sleeve 3 and positioning pin 9, can effectively enhance
The stability of transmission, the service life is longer.
Further, it is realized due to passing through sliding slot 301 and the cooperation of positioning pin 9 between screw rod 4 and driving motor 2, positioning pin 9
There are certain intervals between sliding slot 301, therefore in practical work process, and there may be one for the rotation of driving motor 2 and screw rod 4
Screw rod 4 continues to rotate certain angle etc. after determining deviation, such as lag or the stopping of driving motor 2, so, in institute in the present embodiment
State the monitoring device being provided in rack for monitoring the rotation of screw rod 4.Preferably, the monitoring device is installed on the outer of sleeve 3
Side, a monitored portion 10 rotated synchronously with screw rod 4 is provided on the outside of the driving device, and the monitoring device passes through monitoring
Portion 10 is monitored to monitor the rotation of screw rod 4.As shown in Fig. 2, the end of the positioning pin 9 passes through sliding slot 301 and extends set
The outside of cylinder 3, the monitored portion 10 are installed on the end of positioning pin 9, and the lateral profile in the monitored portion 10 is set as arcuation,
So that its rotation for being adapted to screw rod 4, while the influence to screw rod 4 can be reduced to a certain extent for arcuation, can avoid screw rod 4 because
Eccentric gravity influences and excessive wear etc..And central angle corresponding to the outside arcuation in the monitored portion 10 is less than 360 degree, from
And in 4 per revolution of screw rod, monitoring device can recognize apparent difference, improve the reliability of monitoring result.In addition,
Due to screw rod 4 during rotation can oscilaltion campaign, the monitored portion 10 for being fixedly installed in 9 end of positioning pin can be with
With up and down motion, so, which can be respectively set a detector in the two sides of sleeve 3 to monitor monitored portion 10,
And the height of the detector of two sides is different, so that avoiding monitored portion 10 from moving up and down exceeds the monitoring range of detector.The prison
The specific structure of device is surveyed using known structure on the market, therefore not to repeat here.
As shown in figure 4, in order to preferably install the structures such as pressure regulator valve 1, the rack in the present embodiment is provided with 11 He of top plate
Bottom plate 12, top plate 11 are fixedly connected to form a rectangular frame structure with the two sides of bottom plate 12 by two blocks of side plates 13, two pieces of sides
Plate 13 is equipped with the first mounting plate 15 and the second mounting plate 14 being distributed up and down, two blocks of side plates 13 between top plate 11 and bottom plate 12
On offer vertical strip-shaped hole, the both ends of the first mounting plate 15 and the second mounting plate 14 are by wearing bolt on the outside of strip-shaped hole
Or screw is fixedly installed on side plate 13, and can be can be adjusted up and down in height by strip-shaped hole.Wherein top plate 11 in 13 phase of side plate
Adjacent both ends extend downward with mounting wall 1101, also open up vertical strip-shaped hole on mounting wall 1101, pressure regulator valve 1 by
Bolt is worn on the outside of strip-shaped hole or screw is fixedly installed on mounting wall 1101.It is offered on first mounting plate 15 and pressure regulator valve 1
The resigning mouthful of the shell adaptation of upper installation pressure regulation executive device, when pressure regulator valve 1 is installed on mounting wall 1101, so that its lower end
It is just fitted in resigning mouthful, to carry out Horizontal limiting by the first mounting plate 15.The lower end of first mounting plate 15 can be set
Threaded hole is set to wear screw rod 4, but the present embodiment directly opens up spiral shell in the lower section of tabletting 6 on pressure regulator valve 1 to simplify structure
Screw rod 4 is directly arranged on pressure regulator valve 1 by pit.The lower end surface of second mounting plate 14 is installed by driving motor 2, and the second installation
Driving motor 2 is corresponded on plate 14 and also offers strip-shaped hole, in order to which the position of driving motor 2 is adjusted.Second mounting plate 14 simultaneously
On offer and wear mouth, in order to passing through for 2 output shaft of driving motor and/or sleeve 3.In the first mounting plate 15 and the second installation
Fixed plate 8 is installed in the both ends adjacent with both side plate 13 between plate 14, vertical strip-shaped hole is offered in fixed plate 8, is detected
The detector of device is installed in strip-shaped hole and adjusts height by strip-shaped hole.
Rack using the above structure, may be implemented pressure regulator valve 1, the isostructural installation of driving motor 2 is fixed, while can be with
It is adapted to pressure regulator valve 1, the driving motor 2 etc. of different specification size, and structure is simple, install convenient, is conducive to improve production group
It fills efficiency, reduce production cost, it is practical.
Above-described embodiment is preferred embodiment of the invention, and the present invention can also have other embodiments, such as replace screw rod 4
For slide bar, by driving device be changed to can driving slider lifting gear & rack structure or other known structures etc..This field
Technical staff can also make equivalent deformation or replacement on the premise of without prejudice to spirit of the invention, these equivalent variation or replacement
It is all contained in range set by the claim of this application.
Claims (7)
1. a kind of automatic pressure regulating mechanism, characterized by comprising:
Rack；
The pressure regulator valve (1) being installed in rack, lower end are provided with pressure regulation executive device, above and below the pressure regulation executive device
Move adjustable pressure size；
It is installed on the driving device in rack and being located at below pressure regulator valve (1), is acted in pressure regulation executive device, for controlling
Pressure regulation executive device processed moves up and down.
2. a kind of automatic pressure regulating mechanism as described in claim 1, which is characterized in that the driving device is worn vertically including one
In the driving motor (2) of screw rod (4) and transmission connection screw rod (4) in rack, the upper end docking pressure regulation of the screw rod (4) is held
Luggage is set.
3. a kind of automatic pressure regulating mechanism as claimed in claim 2, which is characterized in that the driving motor (2) and screw rod (4) are same
Axis arranges and is installed on the lower section of screw rod (4), and the output shaft of the driving motor (2) upward and is fixedly installed one and is socketed on silk
Sleeve (3) on the outside of bar (4) offers vertical sliding slot (301) on the sleeve (3), is equipped with one on the screw rod (4) and wears
Cross the positioning pin (9) of sliding slot (301).
4. a kind of automatic pressure regulating mechanism as claimed in claim 3, which is characterized in that be provided in the rack and driven for monitoring
The monitoring device of dynamic device rotation.
5. a kind of automatic pressure regulating mechanism as claimed in claim 4, which is characterized in that the monitoring device is installed on sleeve (3)
Outside, a monitored portion (10) rotated synchronously with screw rod (4), the monitoring device are provided on the outside of the driving device
The rotation of screw rod (4) is monitored by monitoring monitored portion (10).
6. a kind of automatic pressure regulating mechanism as claimed in claim 5, which is characterized in that the end of the positioning pin (9), which passes through, to be slided
Slot (301) and the outside for extending sleeve (3), the monitored portion (10) are installed on the end of positioning pin (9).
7. a kind of automatic pressure regulating mechanism as claimed in any one of claims 1 to 6, which is characterized in that the pressure regulator valve (1) it is interior
Portion is provided with the diaphragm (7) that elastic deformation can occurs along the vertical direction and adjust pressure, and the pressure regulation executive device includes being located at
Diaphragm (7) lower end and the tabletting (6) for abutting the spring (5) of diaphragm (7) and being connected to spring (5) lower end and can moving up and down, institute
It states driving device to act on tabletting (6), to control tabletting (6) up and down motion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910000653.2A CN109667966A (en) | 2019-01-02 | 2019-01-02 | A kind of automatic pressure regulating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910000653.2A CN109667966A (en) | 2019-01-02 | 2019-01-02 | A kind of automatic pressure regulating mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109667966A true CN109667966A (en) | 2019-04-23 |
Family
ID=66147534
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910000653.2A Pending CN109667966A (en) | 2019-01-02 | 2019-01-02 | A kind of automatic pressure regulating mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109667966A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114512785A (en) * | 2022-02-22 | 2022-05-17 | 成都老鹰信息技术有限公司 | Unmanned aerial vehicle disturbs rifle antenna structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1943709A1 (en) * | 1969-08-28 | 1971-03-04 | Messer Griesheim Gmbh | Single or multi-stage pressure regulator for pressure medium lines, in particular pressure gas lines |
| JPS6371710A (en) * | 1986-09-12 | 1988-04-01 | Tlv Co Ltd | Automatic set reducing valve |
| US4791954A (en) * | 1984-10-02 | 1988-12-20 | Tlv Co., Ltd. | Self-regulated pressure control valve |
| US5735308A (en) * | 1993-09-02 | 1998-04-07 | Kabushiki Kaisha Yokota Seisakusho | Automatic constant-pressure regulating lift device |
| CN2306374Y (en) * | 1996-04-25 | 1999-02-03 | 朴龙奎 | Airlock type gas pressure reducing valve |
| DE10330067A1 (en) * | 2003-07-03 | 2005-02-10 | Chun-Cheng Huang | Shut-off valve for gas flow control includes motor-driven tappet rod and a diaphragm actuated independently of impact spring and with pressure/through flow regulating valve ensuring gas flow shut off when required |
| CN101121054A (en) * | 2006-08-11 | 2008-02-13 | 深圳迈瑞生物医疗电子股份有限公司 | Expiratory valve |
| CN201137733Y (en) * | 2008-01-04 | 2008-10-22 | 浙江派沃自控仪表有限公司 | Self-operated pressure-differential pressure assembled regulation valve |
| CN101298890A (en) * | 2008-03-04 | 2008-11-05 | 浙江沃尔达铜业有限公司 | Adjustable compression release valve |
| JP2010255570A (en) * | 2009-04-27 | 2010-11-11 | Kyosan Denki Co Ltd | Pressure regulating device |
| JP2011215850A (en) * | 2010-03-31 | 2011-10-27 | Osaka Gas Co Ltd | Pressure adjustment device |
| CN103075552A (en) * | 2012-12-17 | 2013-05-01 | 中冶焊接科技有限公司 | High-flow-rate special gas pressure reducing device |
| CN103615582A (en) * | 2013-12-04 | 2014-03-05 | 沈阳航天新光集团有限公司 | Pressure reduction valve |
| CN106195378A (en) * | 2016-08-31 | 2016-12-07 | 张家港华日法兰有限公司 | A kind of decompressor structure |
| CN107061810A (en) * | 2017-06-27 | 2017-08-18 | 眉山中车制动科技股份有限公司 | A kind of overflow-type pressure-reducing valve with minimum operating pressures that |
| CN206513905U (en) * | 2016-12-30 | 2017-09-22 | 河北高昕暖通设备有限公司 | A kind of spring underneath type counter-force extending type balanced valve |
| CN209638466U (en) * | 2019-01-02 | 2019-11-15 | 中山市铧禧电子科技有限公司 | A kind of automatic pressure regulating mechanism |
-
2019
- 2019-01-02 CN CN201910000653.2A patent/CN109667966A/en active Pending
Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1943709A1 (en) * | 1969-08-28 | 1971-03-04 | Messer Griesheim Gmbh | Single or multi-stage pressure regulator for pressure medium lines, in particular pressure gas lines |
| US4791954A (en) * | 1984-10-02 | 1988-12-20 | Tlv Co., Ltd. | Self-regulated pressure control valve |
| JPS6371710A (en) * | 1986-09-12 | 1988-04-01 | Tlv Co Ltd | Automatic set reducing valve |
| US5735308A (en) * | 1993-09-02 | 1998-04-07 | Kabushiki Kaisha Yokota Seisakusho | Automatic constant-pressure regulating lift device |
| CN2306374Y (en) * | 1996-04-25 | 1999-02-03 | 朴龙奎 | Airlock type gas pressure reducing valve |
| DE10330067A1 (en) * | 2003-07-03 | 2005-02-10 | Chun-Cheng Huang | Shut-off valve for gas flow control includes motor-driven tappet rod and a diaphragm actuated independently of impact spring and with pressure/through flow regulating valve ensuring gas flow shut off when required |
| CN101121054A (en) * | 2006-08-11 | 2008-02-13 | 深圳迈瑞生物医疗电子股份有限公司 | Expiratory valve |
| CN201137733Y (en) * | 2008-01-04 | 2008-10-22 | 浙江派沃自控仪表有限公司 | Self-operated pressure-differential pressure assembled regulation valve |
| CN101298890A (en) * | 2008-03-04 | 2008-11-05 | 浙江沃尔达铜业有限公司 | Adjustable compression release valve |
| JP2010255570A (en) * | 2009-04-27 | 2010-11-11 | Kyosan Denki Co Ltd | Pressure regulating device |
| JP2011215850A (en) * | 2010-03-31 | 2011-10-27 | Osaka Gas Co Ltd | Pressure adjustment device |
| CN103075552A (en) * | 2012-12-17 | 2013-05-01 | 中冶焊接科技有限公司 | High-flow-rate special gas pressure reducing device |
| CN103615582A (en) * | 2013-12-04 | 2014-03-05 | 沈阳航天新光集团有限公司 | Pressure reduction valve |
| CN106195378A (en) * | 2016-08-31 | 2016-12-07 | 张家港华日法兰有限公司 | A kind of decompressor structure |
| CN206513905U (en) * | 2016-12-30 | 2017-09-22 | 河北高昕暖通设备有限公司 | A kind of spring underneath type counter-force extending type balanced valve |
| CN107061810A (en) * | 2017-06-27 | 2017-08-18 | 眉山中车制动科技股份有限公司 | A kind of overflow-type pressure-reducing valve with minimum operating pressures that |
| CN209638466U (en) * | 2019-01-02 | 2019-11-15 | 中山市铧禧电子科技有限公司 | A kind of automatic pressure regulating mechanism |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114512785A (en) * | 2022-02-22 | 2022-05-17 | 成都老鹰信息技术有限公司 | Unmanned aerial vehicle disturbs rifle antenna structure |
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