CN105697854A - Pilot device for main pressure reducing valve - Google Patents
Pilot device for main pressure reducing valve Download PDFInfo
- Publication number
- CN105697854A CN105697854A CN201610198333.9A CN201610198333A CN105697854A CN 105697854 A CN105697854 A CN 105697854A CN 201610198333 A CN201610198333 A CN 201610198333A CN 105697854 A CN105697854 A CN 105697854A
- Authority
- CN
- China
- Prior art keywords
- diaphragm
- valve body
- valve
- main valve
- elastic component
- 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.)
- Pending
Links
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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/126—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like
- F16K31/1262—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like one side of the diaphragm being spring loaded
- F16K31/1264—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like one side of the diaphragm being spring loaded with means to allow the side on which the springs are positioned to be altered
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Driven Valves (AREA)
Abstract
The invention discloses a pilot device for a main pressure reducing valve. The pilot device for the main pressure reducing valve comprises a valve body, a mandril, a thread rod, and a diaphragm, wherein the valve body and the diaphragm form a breathing cavity in an encircling way; air holes are further formed in the valve body; an elastic element is further fixedly connected to the end part of the thread rod; a connection seat is further fixedly connected to the diaphragm; the elastic element is fixedly connected with the connection seat; and the mandril is fixed at one side departing from the breathing cavity, of the diaphragm. The pilot device for the main pressure reducing valve, which is disclosed by the invention, is simple in structure, and the main valve using the pilot device has a high output pressure adjustment accuracy; and in the pilot device, the movement track of a gear rod for braking the main valve is stable, thus the performance stability of the main valve is benefited.
Description
Technical field
The present invention relates to compression air pressure reducer field, particularly relate to a kind of decompression main valve guide device。
Background technology
Along with combustion gas is used more and more extensive, various forms of air relief valve emerge in an endless stream, and gas pressure-reducing valve arrangement is optimized utilization further that will promote combustion gas further。For environmental consciousness, combustion gas can be greatly reduced Vehicular exhaust pollution for the fuel of vehicle motor, as adopted natural gas even hydrogen, but in order to improve the single aeration stroke of the vehicle being fuel with combustion gas, vehicle is provided with gas cylinder for housing combustion gas, in prior art, hydrogen cylinder is intrinsic pressure up to more than 35Mpa, natural gas cylinder intrinsic pressure also at more than 20Mpa, and the gaseous-pressure being finally introducing cylinder is generally between several kPas to any several MPas, so, the air relief valve that high-pressure gas is reduced pressure is particularly important, simultaneously in practice, the stability of above air relief valve performance has also been reacted on the power of vehicle even in traffic safety intuitively。
Prior art mostly is, for the device of above combustion gas blood pressure lowering, the diaphragm type pneumatic pressure-release valve that sensitivity is higher, but owing to the two ends pressure reduction of air relief valve is big, the vibrations that in air relief valve work process, diaphragm produces will have influence on the stability of air pressure in follow-up gas system；Prior art occurs in that a kind of valve type pneumatic pressure-release valve of living, namely a piece bar simultaneously playing transmission and guide effect is set on diaphragm, the air relief valve of above version can be good restriction diaphragm amplitude, but owing to the bar frictional force that its side and valve body compressive stress produce while restriction vibrations affects again the response speed of bar and the sealing property in bar side face, in prior art, the mechanism of decompressor for combustion gas blood pressure lowering awaits further optimization。
Summary of the invention
Problem for diaphragm vibrations, sensitivity and sealing property that the pneumatic combustion gas dropping equipment of diaphragm type set forth above in use exists, make prior art awaits for the mechanism of decompressor of combustion gas blood pressure lowering the purpose of optimization further, the invention provides a kind of decompression main valve guide device。
For solving the problems referred to above, decompression main valve guide device provided by the invention solves problem by techniques below main points: decompression main valve guide device, including valve body, push rod and the threaded rod being threaded on valve body, also include the diaphragm being fixed on valve body, described valve body and diaphragm surround respiratory cavity, valve body is further opened with the pore communicated with respiratory cavity, the end of threaded rod is also fixedly connected with the elastic component being arranged in respiratory cavity, diaphragm is also fixedly connected with the connection seat being arranged in respiratory cavity, elastic component fixes connection with being connected seat, push rod is fixed on diaphragm and deviates from the side of respiratory cavity。
Concrete, the push rod arranged is for the valve rod effect with main valve, aperture size with control bound, the pore arranged is used for the control that respiratory cavity is intrinsic pressure, the structure being fixed on diaphragm by push rod is adopted to arrange, being easy to the deformation by diaphragm and reach the technique effect of braking mandril motion, namely first the technical program can be by diaphragm amplification principle to realize the intense adjustment of main valve aperture；The threaded rod arranged and elastic component for applying compressive stress on diaphragm, the generation of above compressive stress comes from the change of threaded rod screw-threaded engagement position on valve body and the elastic deformation of elastic component, adopt the version of threaded rod and diaphragm indirect connection, it is intended to be rigidly connected place's local stress by occur the elastic deformation on its radial and axial direction the to cushion diaphragm that diaphragm heterogeneous deformation causes of elastic component and threaded rod, deformation by elastic component axially direction, eliminate threaded rod and valve body to be rigidly connected the restriction to motion of membrane, the defect of the pressure at expulsion instability that the main valve aperture that buffering diaphragm causes when frequently shaking frequently changes and produces。
Further technical scheme is:
For ease of the intrinsic pressure control of lower intracavity, described pore includes venthole and air inlet。
For optimizing above-mentioned intrinsic pressure control effect further so that the main valve of effect of the present invention can timely respond to the duty of residing system, and described air inlet and/or venthole are additionally provided with electromagnetic valve。When applying to automobile-used air relief valve such as the present invention, air inlet and be respectively provided with electromagnetic valve on venthole, two electromagnetic valves are connected with the start-up circuit of vehicle, so can realize the state whether whether vehicle launch open with main valve and mate。
For ease of simplifying elastic component and connecting the structure of seat, alleviate the weight connecting seat, it is beneficial to operability and the sensitivity of the present invention, described elastic component is axial and the axial conllinear of threaded rod compression spring, connecting seat is the barrel-like structure that bottom is fixed on diaphragm, and the free end of compression spring is fixed on connection seat drum head face。As preferred form, the more than compression preferred conical helical spring of spring, so, connection seat in conjunction with above version, at compression spring by further compression process, connect the medial surface of seat and also have elastic component radial deformation is provided constraints, to prevent push rod under special circumstances, as threaded rod is pressed excessively down, cause that push rod departs from main valve valve rod and blocks main valve supply。
For promoting the anti-corrosion capability of diaphragm, extending the life-span of diaphragm, being beneficial to the life-span of the present invention, the material of described diaphragm is ethylene propylene diene rubber。
The method have the advantages that
Present configuration is simple, the push rod arranged is for the valve rod effect with main valve, aperture size with control bound, the pore arranged is used for the control that respiratory cavity is intrinsic pressure, the structure being fixed on diaphragm by push rod is adopted to arrange, being easy to the deformation by diaphragm and reach the technique effect of braking mandril motion, namely first the technical program can be by diaphragm amplification principle to realize the intense adjustment of main valve aperture；The threaded rod arranged and elastic component for applying compressive stress on diaphragm, the generation of above compressive stress comes from the change of threaded rod screw-threaded engagement position on valve body and the elastic deformation of elastic component, adopt the version of threaded rod and diaphragm indirect connection, it is intended to be rigidly connected place's local stress by occur the elastic deformation on its radial and axial direction the to cushion diaphragm that diaphragm heterogeneous deformation causes of elastic component and threaded rod, deformation by elastic component axially direction, eliminate threaded rod and valve body to be rigidly connected the restriction to motion of membrane, the defect of the pressure at expulsion instability that the main valve aperture that buffering diaphragm causes when frequently shaking frequently changes and produces。Namely in above structure, by adopting diaphragm that air pressure control signal is amplified so that use the main valve of the present invention to have good output pressure Adjustment precision, and the realization of this Adjustment precision can pass through pneumatic signal and hand-turning threaded rod is realized；In the present invention, the lever movement locus for braking main valve is relatively stable, is beneficial to the stability of main valve performance。
Accompanying drawing explanation
Fig. 1 is the structural representation of decompression one specific embodiment of main valve guide device of the present invention。
Figure acceptance of the bid note is respectively as follows: 1, valve body, and 11, venthole。12, air inlet, 2, connect seat, 3, push rod, 4, elastic component, 5, threaded rod, 6, diaphragm, 7, respiratory cavity。
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in further detail, but the structure of the present invention is not limited only to following example:
Embodiment 1:
As shown in Figure 1, decompression main valve guide device, including valve body 1, push rod 3 and the threaded rod 5 that is threaded on valve body 1, also include the diaphragm 6 being fixed on valve body 1, described valve body 1 and diaphragm 6 surround respiratory cavity 7, valve body 1 is further opened with the pore communicated with respiratory cavity 7, the end of threaded rod 5 is also fixedly connected with the elastic component 4 being arranged in respiratory cavity 7, diaphragm 6 is also fixedly connected with the connection seat 2 being arranged in respiratory cavity 7, elastic component 4 fixes connection with being connected seat 2, and push rod 3 is fixed on diaphragm 6 and deviates from the side of respiratory cavity 7。
In the present embodiment, the push rod 3 arranged is for the valve rod effect with main valve, aperture size with control bound, the pore arranged is used for the control that respiratory cavity 7 is intrinsic pressure, the structure being fixed on diaphragm 6 by push rod 3 is adopted to arrange, being easy to be reached the technique effect of braking mandril 3 motion by the deformation of diaphragm 6, namely first the technical program can be by diaphragm 6 amplification principle to realize the intense adjustment of main valve aperture；The threaded rod 5 arranged and elastic component 4 for applying compressive stress on diaphragm 6, the generation of above compressive stress comes from the change of threaded rod 5 screw-threaded engagement position on valve body 1 and the elastic deformation of elastic component 4, adopt the version of threaded rod 5 and diaphragm 6 indirect connection, it is intended to be rigidly connected place's local stress by occur the elastic deformation on its radial and axial direction the to cushion diaphragm 6 that diaphragm 6 heterogeneous deformation causes of elastic component 4 and threaded rod 5, deformation by elastic component 4 axially direction, eliminate threaded rod 5 and valve body 1 to be rigidly connected the restriction to diaphragm 6 motion, the defect of the pressure at expulsion instability that the main valve aperture that buffering diaphragm 6 causes when frequently shaking frequently changes and produces。
Embodiment 2:
The present embodiment is further qualified on the basis of embodiment 1, as it is shown in figure 1, for ease of the intrinsic pressure control of lower intracavity, described pore includes venthole 11 and air inlet 12。
For optimizing above-mentioned intrinsic pressure control effect further so that the main valve of effect of the present invention can timely respond to the duty of residing system, and described air inlet 12 and/or venthole 11 are additionally provided with electromagnetic valve。When applying to automobile-used air relief valve such as the present invention, air inlet 12 and be respectively provided with electromagnetic valve on venthole 11, two electromagnetic valves are connected with the start-up circuit of vehicle, so can realize the state whether whether vehicle launch open with main valve and mate。
For ease of simplifying elastic component 43 and connecting the structure of seat 2, alleviate the weight connecting seat 2, it is beneficial to operability and the sensitivity of the present invention, described elastic component 4 is axial and the axial conllinear of threaded rod 5 compression spring, connecting seat 2 and be fixed on the barrel-like structure on diaphragm 6 for bottom, the free end of compression spring is fixed on connection seat 2 drum head face。
Embodiment 3:
The present embodiment is further qualified on the basis of above example, as it is shown in figure 1, for promoting the anti-corrosion capability of diaphragm 6, extending the life-span of diaphragm 6, be beneficial to the life-span of the present invention, the material of described diaphragm 6 is ethylene propylene diene rubber。
Above content is the further description present invention made in conjunction with concrete preferred implementation, it is impossible to assert that the specific embodiment of the present invention is confined to these explanations。For general technical staff of the technical field of the invention, without departing from other embodiments drawn under technical scheme, should be included in protection scope of the present invention。
Claims (5)
1. decompression main valve guide device, including valve body (1), push rod (3) and the threaded rod (5) being threaded on valve body (1), it is characterized in that, also include the diaphragm (6) being fixed on valve body (1), described valve body (1) and diaphragm (6) surround respiratory cavity (7), valve body (1) is further opened with the pore communicated with respiratory cavity (7), the end of threaded rod (5) is also fixedly connected with the elastic component (4) being arranged in respiratory cavity (7), diaphragm (6) is also fixedly connected with the connection seat (2) being arranged in respiratory cavity (7), elastic component (4) fixes connection with being connected seat (2), push rod (3) is fixed on diaphragm (6) and deviates from the side of respiratory cavity (7)。
2. decompression main valve guide device according to claim 1, it is characterised in that described pore includes venthole (11) and air inlet (12)。
3. decompression main valve guide device according to claim 2, it is characterised in that described air inlet (12) and/or be additionally provided with electromagnetic valve on venthole (11)。
4. decompression main valve guide device according to claim 1, it is characterized in that, described elastic component (4) is axial and the compression spring of threaded rod (5) axially conllinear, connecting seat (2) and be fixed on the barrel-like structure on diaphragm (6) for bottom, the free end of compression spring is fixed on connection seat (2) drum head face。
5. according to decompression main valve guide device any one of in Claims 1-4, it is characterised in that the material of described diaphragm (6) is ethylene propylene diene rubber。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610198333.9A CN105697854A (en) | 2016-04-01 | 2016-04-01 | Pilot device for main pressure reducing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610198333.9A CN105697854A (en) | 2016-04-01 | 2016-04-01 | Pilot device for main pressure reducing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105697854A true CN105697854A (en) | 2016-06-22 |
Family
ID=56218969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610198333.9A Pending CN105697854A (en) | 2016-04-01 | 2016-04-01 | Pilot device for main pressure reducing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105697854A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111396593A (en) * | 2019-01-03 | 2020-07-10 | 浙江三花制冷集团有限公司 | Pilot-operated type electromagnetic valve |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10007478A1 (en) * | 1999-02-18 | 2000-08-31 | Tsubakimoto Chain Co | Hydraulic clamping device to charge drive belt/chain of vehicle engine has integrated outlet element and relief valve with pressure relief function and fluid leakage function for high pressure oil chamber |
| CN203809748U (en) * | 2014-04-08 | 2014-09-03 | 福建华龙化油器有限公司 | Membrane ejecting rod and elastic membrane sliding device of vehicle natural gas pressure reducing valve |
| CN204213426U (en) * | 2014-09-28 | 2015-03-18 | 杭州金奥阀门制造有限公司 | Interior pressure Self-operated pressure reducing valve |
| CN205479649U (en) * | 2016-04-01 | 2016-08-17 | 成都科盛石油科技有限公司 | Main valve guide device in decompression gas circuit |
-
2016
- 2016-04-01 CN CN201610198333.9A patent/CN105697854A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10007478A1 (en) * | 1999-02-18 | 2000-08-31 | Tsubakimoto Chain Co | Hydraulic clamping device to charge drive belt/chain of vehicle engine has integrated outlet element and relief valve with pressure relief function and fluid leakage function for high pressure oil chamber |
| CN203809748U (en) * | 2014-04-08 | 2014-09-03 | 福建华龙化油器有限公司 | Membrane ejecting rod and elastic membrane sliding device of vehicle natural gas pressure reducing valve |
| CN204213426U (en) * | 2014-09-28 | 2015-03-18 | 杭州金奥阀门制造有限公司 | Interior pressure Self-operated pressure reducing valve |
| CN205479649U (en) * | 2016-04-01 | 2016-08-17 | 成都科盛石油科技有限公司 | Main valve guide device in decompression gas circuit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111396593A (en) * | 2019-01-03 | 2020-07-10 | 浙江三花制冷集团有限公司 | Pilot-operated type electromagnetic valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205479649U (en) | Main valve guide device in decompression gas circuit | |
| CN205534354U (en) | A pressure regulating guide mechanism for in high pressure pneumatic system | |
| CN105697854A (en) | Pilot device for main pressure reducing valve | |
| CN105605243A (en) | Pressure-regulation pilot mechanism used in pneumatic system | |
| CN105179768B (en) | A kind of natural gas pressure-reducing valve for being beneficial to improve outlet pressure control accuracy | |
| CN2806924Y (en) | Poppet valve pilot type ultra-high pneumatic proportional pressure-reducing valve | |
| CN104595498A (en) | Automobile pressure reducing valve | |
| CN107763296A (en) | For the pressure regulation pilot mechanism in pneumatic system | |
| CN103511647A (en) | Manually pressed valve | |
| CN203082301U (en) | Gas pressure reducer for mass flow | |
| CN201487375U (en) | Two-stage relief valve with single valve core | |
| CN205534440U (en) | High -pressure gas valve that reduces pressure | |
| CN205534441U (en) | There is not gas of leakage relief pressure valve | |
| CN201461825U (en) | Pressure adjustable gas spring | |
| CN203868487U (en) | High-accuracy pressure regulating valve | |
| CN202646217U (en) | Diaphragm type pneumatic actuator | |
| CN105605275A (en) | Natural gas pressure reduction mechanism | |
| CN202118331U (en) | Self-operated pressure regulating valve capable of utilizing inner pressure | |
| CN204533546U (en) | A kind ofly be convenient to the automobile pressure reducing valve limiting the highest outlet pressure | |
| CN105135018B (en) | A kind of natural gas pressure-reducing valve | |
| CN204041278U (en) | Integral type decompression weighing apparatus pressure device | |
| KR200479656Y1 (en) | Control valve for goods train braking apparatus | |
| CN109139791B (en) | Damping structure for preventing pressure reducer from oscillating | |
| CN202812359U (en) | Pilot valve for relief valve | |
| CN201561417U (en) | Boiler safety valve suitable for train model |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160622 |
|
| RJ01 | Rejection of invention patent application after publication |