CN107061811A - Diaphragm protection device and the pressure regulator valve provided with diaphragm protection device - Google Patents
Diaphragm protection device and the pressure regulator valve provided with diaphragm protection device Download PDFInfo
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- CN107061811A CN107061811A CN201611221458.5A CN201611221458A CN107061811A CN 107061811 A CN107061811 A CN 107061811A CN 201611221458 A CN201611221458 A CN 201611221458A CN 107061811 A CN107061811 A CN 107061811A
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- Prior art keywords
- diaphragm
- matrix
- ring bodies
- protection device
- described matrix
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- 230000007423 decrease Effects 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 7
- 230000001105 regulatory effect Effects 0.000 claims description 7
- 239000007822 coupling agent Substances 0.000 claims description 4
- 239000004088 foaming agent Substances 0.000 claims description 4
- 239000003365 glass fiber Substances 0.000 claims description 4
- 239000002994 raw material Substances 0.000 claims description 4
- 229920005989 resin Polymers 0.000 claims description 4
- 239000011347 resin Substances 0.000 claims description 4
- 239000012745 toughening agent Substances 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 239000004047 hole gas Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 11
- 238000005260 corrosion Methods 0.000 abstract description 10
- 230000007797 corrosion Effects 0.000 abstract description 10
- 230000033228 biological regulation Effects 0.000 abstract description 5
- 230000008859 change Effects 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 4
- 239000011941 photocatalyst Substances 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003063 flame retardant Substances 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- DXZMANYCMVCPIM-UHFFFAOYSA-L zinc;diethylphosphinate Chemical compound [Zn+2].CCP([O-])(=O)CC.CCP([O-])(=O)CC DXZMANYCMVCPIM-UHFFFAOYSA-L 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
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- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 229920005560 fluorosilicone rubber Polymers 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229920006168 hydrated nitrile rubber Polymers 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
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- 230000008569 process Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
Abstract
The invention discloses a kind of diaphragm protection device and the pressure regulator valve provided with diaphragm protection device.The present invention relates to mechanical field.Diaphragm protection device, including a matrix, the upper end of matrix are provided with the first connector for being used for connecting diaphragm, and the bottom of matrix is provided with the second connector for being used for contacting connecting spring.The present invention is protected by matrix to diaphragm, it is therefore prevented that corrosion of the gas leakage to diaphragm.The present invention in the upper end of matrix by being provided with the first connector for being used for connecting diaphragm, the fixation of diaphragm and both matrixes can be achieved, it can both realize that matrix replaced film contact connecting spring by the second connector, and realize that diaphragm remained to drive spring movement, it is ensured that realize the effect of pressure regulation.
Description
Technical field
The present invention relates to field of mechanical technique, more particularly to diaphragm-type pressure regulating valve.
Background technology
When diaphragm-type pressure regulating valve is applied in engine crankshaft ventilation system, typically it is used in combination, is used for oil mist separator
Regulation control crankcase pressure.
It is at pressure regulator valve air inlet that pressure regulator valve adjusts crankcase pressure by the change in location of diaphragm with spring force
Pressure.When the pressure of pressure regulation valve air gate is more than the pressure at pressure regulator valve air inlet, pressure differential is acted on diaphragm, spring quilt
Compression, the distance of diaphragm to gas outlet diminishes, and blow-by gas is throttled in the upper end of gas outlet, the pressure meeting of pressure regulator valve air inlet
It is controlled in zone of reasonableness.
Diaphragm material is usually using rubber such as FVMQ or HNBR.Because diaphragm is in gas leakage in pressure regulator valve working environment
In gas, and by pulse warpage, and the composition containing corrosion rubber in blow-by gas.Crackle occurs after being corroded in diaphragm,
Even ruptured when serious, in turn result in pressure regulator valve disabler, influence crankcase ventilation system.
The content of the invention
It is an object of the present invention to provide a kind of diaphragm protection device and the pressure regulator valve provided with diaphragm protection device, to solve
At least one certainly above-mentioned technical problem.
Technical problem solved by the invention can be realized using following technical scheme：
Diaphragm protection device, it is characterised in that including a matrix, the upper end of described matrix, which is provided with, to be used to connect diaphragm
First connector, the bottom of described matrix is provided with the second connector for being used for contacting connecting spring.
The present invention is protected by matrix to diaphragm, it is therefore prevented that corrosion of the gas leakage to diaphragm.The present invention is by matrix
Upper end be provided with and be used to connect the first connector of diaphragm, you can realize the fixation of diaphragm and both matrixes, pass through second and connect
Fitting can both realize that matrix replaced film contact connecting spring, realize that diaphragm remains to drive spring movement, it is ensured that realize pressure regulation
Effect.
As a kind of preferred scheme, first connector is one for being connected and opening upwards with diaphragm interference fit
Groove, the central axis of the groove and the central axis of described matrix are in same straight line.It is easy to by being interference fitted connection
Realize and change, dismount.
More preferably, first connector is a through hole for being used to be connected with diaphragm interference fit, the through hole
Central axis and described matrix central axis be in same straight line.
The present invention is interference fitted by through hole and diaphragm, has saved the cost of matrix, remains to realize the effect of protection diaphragm.
As a kind of preferred scheme, second connector is a ring bodies, and the outer wall of the ring bodies is described matrix
Contact surface for contact spring；
The central axis of the ring bodies and the central axis of described matrix are on same straight line.
It is easy to realize the fixation of spring by the second connector.
The radial outer periphery of described matrix is provided with a diversion division for controlling gas flow, and the diversion division is hollow in one
Cone, the internal diameter of the cone gradually successively decreases from bottom to up, the central axis of the cone and the center of described matrix
Axis is in same straight line.
The present invention is provided with diversion division by matrix, the top of gas flow matrix is prevented, so as to further prevent gas
Touch diaphragm.
As a kind of preferred scheme, described matrix includes two central axis and is in collinear ring bodies, is respectively
First ring bodies, the second ring bodies, the lower surface of first ring bodies are fixedly connected with the upper surface of second ring bodies；
First ring bodies is the first connector, and the inwall of first ring bodies is used to connect diaphragm for described matrix
Joint face；
The external diameter of first ring bodies is more than the external diameter of second ring bodies, the external diameter of first ring bodies and institute
The difference for stating the external diameter of the second ring bodies is more than the radial thickness of the spring, and second ring bodies is the second connector, institute
Stating the outer wall of the second ring bodies is used for the joint face of connecting spring for described matrix.
Structure of the invention by optimizing matrix, it is simple in construction, while protection diaphragm, control cost.
Described matrix also includes a hollow cone；The upper end of the cone and the outer wall of first ring bodies
It is fixedly connected；
The internal diameter of the cone gradually successively decreases from bottom to up, the central axis of the cone and first ring bodies
Central axis be in same straight line；
Described matrix is to be fixedly connected with the matrix constituted by the first ring bodies, the second ring bodies, cone three.
The top of gas flow matrix is prevented by cone, so as to further prevent gas from touching diaphragm.
Described matrix is the matrix being made up of PA6 or PA66.While ensureing the service life of matrix, prevent to diaphragm
Corrosion.Described matrix can also be made of other resistant materials.
Described matrix includes the raw material of following mass percent, and PA6 resins 22%~60%, heat filling 20%~
30%th, glass fibre 5%~15%, halogen-free flame retardants 1.0%~6%, toughener 2.0%~6%, coupling agent 0.1%~
0.5%th, foaming agent 1%~2%.
The present invention is by improveing the formula of matrix, while corrosion resistant effect is realized, can be with by heat filling
The heat being absorbed to during to substrate contact gas in gas is realized, while preventing that heat from distributing outwardly, the temperature of gas is reduced,
Reduce the corrosivity of gas.
Pressure regulator valve provided with diaphragm protection device, including a valve body and bonnet, the valve body are used for and bent axle provided with one
It is additionally provided with the air inlet of case conducting, the valve body in a gas outlet, the valve body and is provided with a pressure regulating device, the pressure regulating device
Including diaphragm and spring, the central axis of the diaphragm and spring is on same straight line, it is characterised in that the diaphragm and institute
State and a diaphragm protection device is provided between spring；
The diaphragm protection device includes a matrix being made up of resistant material, and the upper end of described matrix, which is provided with, to be used for
The first connector of diaphragm is connected, the bottom of described matrix is provided with the second connector for being used for contacting connecting spring.
The present invention prevents corrosion of the gas leakage to diaphragm in crankcase guide valve body by diaphragm protection device, protects
Diaphragm.
As a kind of preferred scheme, first connector is one for being connected and opening upwards with diaphragm interference fit
Groove, the central axis of the groove and the central axis of described matrix are in same straight line；
The diaphragm is provided with the projection with the groove match.
Replacing, dismounting are easy to implement by being interference fitted connection.
More preferably, first connector is a through hole for being used to be connected with diaphragm interference fit, the through hole
Central axis and described matrix central axis be in same straight line；
The diaphragm is provided with the projection matched with the through hole.
The present invention is interference fitted by through hole and diaphragm, has saved the cost of matrix, remains to realize the effect of protection diaphragm.
The junction of the valve body and the bonnet is provided with outside an accommodating chamber for being used to fix the diaphragm, the diaphragm
Edge is provided with the projection matched with the accommodating chamber.It is easy to implement the connection that diaphragm is fixed on the valve body and the bonnet
Place.
The bonnet is provided with the through hole turned on air；
The air inlet is respectively positioned on the homonymy of the diaphragm, and the air inlet and gas outlet position with the gas outlet
In the lower section of the diaphragm；
The valve body is provided with the annular projection for being used for fixing spring, the central axis of the annular projection and the diaphragm
Central axis be on same straight line, the annular projection is used to export the through hole of gas provided with one, using the through hole as
The gas outlet；
The upper end of the spring contacts connection with described matrix, and the bottom of the spring is outer with the annular projection
Wall contact connection.
The present invention adjusts the pressure of pressure regulator valve air inlet by the change in location of diaphragm with spring force.When pressure regulator valve goes out
When the pressure of gas port is larger, pressure differential is acted on diaphragm, and spring is compressed, and the distance of diaphragm to annular projection diminishes, gas
It is throttled in annular projection upper end, the pressure of air inlet can be controlled in zone of reasonableness.
The radial outer periphery of described matrix is provided with a diversion division for controlling gas flow, and the diversion division is hollow in one
Cone, the internal diameter of the cone gradually successively decreases from bottom to up, the central axis of the cone and the center of described matrix
Axis is in same straight line；
The gas imported in the valve body through air inlet is oriented to the gas outlet through diversion division；
The valve body, which includes one, is used for the inner chamber that gas circulates, and the internal diameter of the inner chamber is not less than the external diameter of described matrix,
And the internal diameter of the inner chamber and the difference of external diameter of described matrix are not more than 3cm.
The present invention is provided with diversion division by matrix, the top of gas flow matrix is prevented, so as to further prevent gas
Touch diaphragm.Prevent gas from touching diaphragm by limiting the external diameter of matrix, protect diaphragm.
Brief description of the drawings
Fig. 1 is a kind of sectional view of diaphragm protection device of the invention；
Fig. 2 is provided with the part-structure schematic diagram of the pressure regulator valve of diaphragm protection device for the present invention.
Embodiment
In order that the technical means, the inventive features, the objects and the advantages of the present invention are easy to understand, tie below
Conjunction, which is specifically illustrating, is expanded on further the present invention.
Referring to Fig. 1, Fig. 2, diaphragm protection device 1, including a matrix, the upper end of matrix, which is provided with, is used to connecting the of diaphragm
A connection piece 11, the bottom of matrix is provided with the second connector 12 for being used for contacting connecting spring.The present invention is by matrix to film
Piece is protected, it is therefore prevented that corrosion of the gas leakage to diaphragm.The present invention is used to connect diaphragm by being provided with the upper end of matrix
First connector, you can realize the fixation of diaphragm and both matrixes, can both realize that matrix replaced diaphragm by the second connector
Connecting spring is contacted, realizes that diaphragm remains to drive spring movement, it is ensured that realize the effect of pressure regulation.
As a kind of preferred scheme, the first connector be one be used for diaphragm be interference fitted be connected and opening upwards it is recessed
Groove, the central axis of groove and the central axis of matrix are in same straight line.Replacing is easy to implement by being interference fitted connection, torn open
Dress.
More preferably, the first connector is a through hole for being used to be connected with diaphragm interference fit, the central shaft of through hole
The central axis of line and matrix is in same straight line.The present invention is interference fitted by through hole and diaphragm, has saved the cost of matrix,
Remain to realize the effect of protection diaphragm.
As a kind of preferred scheme, the second connector is a ring bodies, and the outer wall of ring bodies is that matrix is used for contact spring
Contact surface；The central axis of ring bodies and the central axis of matrix are on same straight line.It is easy to real by the second connector
The fixation of existing spring.
The radial outer periphery of matrix is in a hollow circular cone provided with a diversion division 13 for controlling gas flow, diversion division 13
Body, the internal diameter of cone gradually successively decreases from bottom to up, and the central axis of cone and the central axis of matrix are in same straight line.
The present invention is provided with diversion division by matrix, the top of gas flow matrix is prevented, so as to further prevent gas from touching film
Piece.
As a kind of preferred scheme, matrix includes two central axis and is in collinear ring bodies, respectively first
Ring bodies, the second ring bodies, the lower surface of the first ring bodies are fixedly connected with the upper surface of the second ring bodies；First ring bodies is
First connector, the inwall of the first ring bodies is used for the joint face for connecting diaphragm for matrix；The external diameter of first ring bodies is more than the
The difference of the external diameter of the external diameter of two ring bodies, the external diameter of the first ring bodies and the second ring bodies is more than the radial thickness of spring, the
Two ring bodies are the second connector, and the outer wall of the second ring bodies is used for the joint face of connecting spring for matrix.The present invention is by excellent
Change the structure of matrix, it is simple in construction, while protection diaphragm, control cost.
Matrix also includes a hollow cone；The upper end of cone is fixedly connected with the outer wall of the first ring bodies；Circle
The internal diameter of cone gradually successively decreases from bottom to up, and the central axis of the central axis of cone and the first ring bodies is in always
Line；Matrix is to be fixedly connected with the matrix constituted by the first ring bodies, the second ring bodies, cone three.Prevented by cone
The top of gas flow matrix, so as to further prevent gas from touching diaphragm.
Matrix is the matrix being made up of PA6 or PA66.While ensureing the service life of matrix, the corruption to diaphragm is prevented
Erosion.
Matrix includes the raw material of following mass percent, PA6 resins 22%~60%, heat filling 20%~30%, glass
Glass fiber 5%~15%, halogen-free flame retardants 1.0%~6%, toughener 2.0%~6%, coupling agent 0.1%~0.5%, foaming
Agent 1%~2%.Formula of the invention by improveing matrix, while corrosion resistant effect is realized, may be used also by heat filling
To realize the heat being absorbed to during to substrate contact gas in gas, while preventing that heat from distributing outwardly, the temperature of gas is reduced
Degree, reduces the corrosivity of gas.
Matrix includes the raw material of following mass percent, PA6 resins 22-60%, heat filling 20-30%, glass fibre
5%~15%, activated carbon granule 5%-10%, white phosphorus 1%, fluorescent material 3%~5%, photocatalyst 3%~10%, toughener
2.0-6%, coupling agent 0.1-0.5%, foaming agent 1%~2%.Formula of the invention by improveing matrix, it is corrosion-resistant realizing
Effect while, can also realize the purification to air, white phosphorus with fluorescent material in heat filling endothermic process, heat hair
Gas is purified under the collective effect of light, the clean-up effect of raising photocatalyst, photocatalyst and activated carbon granule.
Referring to Fig. 2, the pressure regulator valve provided with diaphragm protection device 1, including a valve body 4 and bonnet 3, valve body 4 is provided with a use
A pressure regulating device is provided with being additionally provided with the air inlet 41 turned on crankcase, valve body 4 in a gas outlet 42, valve body 4, pressure regulator
Structure includes diaphragm 2 and spring, and the central axis of diaphragm 2 and spring is on same straight line, and a film is provided between diaphragm 2 and spring
Piece protection device；Diaphragm protection device includes a matrix being made up of resistant material, and the upper end of matrix, which is provided with, to be used to connect
First connector of diaphragm 2, the bottom of matrix is provided with the second connector for being used for contacting connecting spring.The present invention passes through diaphragm
Protection device prevents corrosion of the gas leakage that crankcase is oriented in valve body 4 to diaphragm 2, protects diaphragm 2.
The junction of valve body 4 and bonnet 3 is provided with an accommodating chamber for being used to fix diaphragm 2, and the outward flange of diaphragm 2 is provided with and appearance
The projection that chamber of receiving matches.It is easy to implement the junction that diaphragm 2 is fixed on valve body 4 and bonnet 3.
Bonnet 3 is provided with the through hole turned on air；Air inlet 41 is respectively positioned on the homonymy of diaphragm 2 with gas outlet 42, and enters
Gas port 41 is located at the lower section of diaphragm 2 with gas outlet 42；Valve body 4 is provided with the annular projection for being used for fixing spring, annular projection
The central axis of central axis and diaphragm 2 is on same straight line, and annular projection is provided with a through hole for being used to export gas, with
Through hole is gas outlet 42；The upper end of spring is connected with substrate contact, and the bottom of spring and the wall contacts of annular projection connect
Connect.The present invention adjusts the pressure of pressure regulator valve air inlet 41 by the change in location of diaphragm 2 with spring force.When pressure regulator valve outlet
When the pressure of mouth 42 is larger, pressure differential is acted on diaphragm 2, and spring is compressed, and the distance of diaphragm 2 to annular projection diminishes, gas
Body is throttled in annular projection upper end, and the pressure of air inlet 41 can be controlled in zone of reasonableness.
The through hole turned on bonnet with air is first through hole, and first through hole connects a regulator, and regulator includes
The opposite gas channel of two airflow directions, is respectively used for for the first gas channel to first through hole conveying gas, one
Second gas channel of the gas discharge in through hole；The inlet end of first inlet channel is connected with the outlet side of air pump, the first gas
The outlet side of circulation road is connected with first through hole, and the inlet end of the second gas channel is connected with first through hole, the second gas channel
Outlet side and atmosphere；First gas channel be located at the second gas channel lower section, the outlet side of the first gas channel with
The inlet end of second gas channel is connected by a rotatable catch；When air pump conveys gas to through hole, catch is in air-flow
In the presence of on turn over, move in the second gas channel, and catch stop the second gas channel conducting；When air pump is stopped
When, catch is moved in the first gas channel due to being turned under Action of Gravity Field, and catch stops the conducting of the first gas channel, gas
Pump connects a microprocessor system, and microprocessor system connection one is used for the first air pressure transmission for detecting air pressure at first through hole
Sensor and the second baroceptor for detecting air pressure below diaphragm.It is easy to control the barometric information in through hole.
The radial outer periphery of matrix is in a hollow cone provided with a diversion division for controlling gas flow, diversion division,
The internal diameter of cone gradually successively decreases from bottom to up, and the central axis of cone and the central axis of matrix are in same straight line；Valve
The gas imported in vivo through air inlet is oriented to gas outlet through diversion division；Valve body, which includes one, is used for the inner chamber that gas circulates, inner chamber
Internal diameter is not less than the external diameter of matrix, and the internal diameter of inner chamber and the difference of external diameter of matrix are not more than 3cm.The present invention is by matrix
Provided with diversion division, the top of gas flow matrix is prevented, so as to further prevent gas from touching diaphragm 2.By limiting matrix
External diameter prevent that gas from touching diaphragm 2, protect diaphragm 2.
The general principle and principal character and advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the simply explanation described in above-described embodiment and specification is originally
The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (10)
1. diaphragm protection device, it is characterised in that including a matrix, the upper end of described matrix, which is provided with, is used to connecting the of diaphragm
A connection piece, the bottom of described matrix is provided with the second connector for being used for contacting connecting spring.
2. diaphragm protection device according to claim 1, it is characterised in that first connector is one to be used for and diaphragm
Interference fit connection and the groove of opening upwards, the central axis of the groove and the central axis of described matrix are in always
Line.
3. diaphragm protection device according to claim 1, it is characterised in that first connector is one to be used for and diaphragm
The through hole of connection is interference fitted, the central axis of the through hole and the central axis of described matrix are in same straight line.
4. diaphragm protection device according to claim 1, it is characterised in that second connector is a ring bodies, institute
The outer wall for stating ring bodies is that described matrix is used for the contact surface of contact spring；
The central axis of the ring bodies and the central axis of described matrix are on same straight line.
5. diaphragm protection device according to claim 1, it is characterised in that described matrix is in including two central axis
Collinear ring bodies, respectively the first ring bodies, the second ring bodies, the lower surface of first ring bodies and described second
The upper surface of ring bodies is fixedly connected；
First ring bodies is the first connector, and the inwall of first ring bodies is used for the company for connecting diaphragm for described matrix
Junction；
The external diameter of first ring bodies is more than the external diameter of second ring bodies, the external diameter of first ring bodies and described the
The difference of the external diameter of two ring bodies is more than the radial thickness of the spring, and second ring bodies is the second connector, described the
The outer wall of two ring bodies is that described matrix is used for the joint face of connecting spring.
6. diaphragm protection device according to claim 5, it is characterised in that the radial outer periphery of described matrix is used for provided with one
Control the diversion division of gas flow, the diversion division is in a hollow cone, the internal diameter of the cone is from bottom to up gradually
Successively decrease, the central axis of the cone and the central axis of described matrix are in same straight line.
7. diaphragm protection device as claimed in any of claims 1 to 6, it is characterised in that described matrix is by PA6
Or the matrix that PA66 is made.
8. diaphragm protection device as claimed in any of claims 1 to 6, it is characterised in that described matrix is included such as
The raw material of lower mass percent, PA6 resins 22-60%, heat filling 20-30%, glass fibre 5%~15%, halogen-free flameproof
Agent 1.0-6%, toughener 2.0-6%, coupling agent 0.1-0.5%, foaming agent 1%~2%.
9. the pressure regulator valve provided with diaphragm protection device, including a valve body and bonnet, the valve body are used for and crankcase provided with one
It is additionally provided with the air inlet of conducting, the valve body in a gas outlet, the valve body and is provided with a pressure regulating device, the pressure regulating device bag
Include diaphragm and spring, the central axis of the diaphragm and spring is on same straight line, it is characterised in that the diaphragm with it is described
A diaphragm protection device is provided between spring；
The diaphragm protection device includes a matrix being made up of resistant material, and the upper end of described matrix, which is provided with, to be used to connect
First connector of diaphragm, the bottom of described matrix is provided with the second connector for being used for contacting connecting spring.
10. diaphragm protection device according to claim 9 and the pressure regulator valve provided with diaphragm protection device, it is characterised in that
The junction of the valve body and the bonnet is provided with an accommodating chamber for being used to fix the diaphragm, and the outward flange of the diaphragm is provided with
The projection matched with the accommodating chamber；
The air inlet is respectively positioned on the homonymy of the diaphragm with the gas outlet, and the air inlet is located at institute with the gas outlet
State the lower section of diaphragm；
The valve body is provided with the annular projection for being used for fixing spring, the central axis of the annular projection and the diaphragm
Heart axis is on same straight line, and the annular projection, provided with a through hole for exporting gas, is described using the through hole
Gas outlet；
The upper end of the spring contacts connection with described matrix, and the bottom of the spring and the outer wall of the annular projection connect
Touch connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611221458.5A CN107061811B (en) | 2016-12-26 | 2016-12-26 | Diaphragm protective device and pressure regulator valve equipped with diaphragm protective device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611221458.5A CN107061811B (en) | 2016-12-26 | 2016-12-26 | Diaphragm protective device and pressure regulator valve equipped with diaphragm protective device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107061811A true CN107061811A (en) | 2017-08-18 |
| CN107061811B CN107061811B (en) | 2019-05-10 |
Family
ID=59624317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611221458.5A Active CN107061811B (en) | 2016-12-26 | 2016-12-26 | Diaphragm protective device and pressure regulator valve equipped with diaphragm protective device |
Country Status (1)
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| CN (1) | CN107061811B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110192473A1 (en) * | 2004-03-12 | 2011-08-11 | Hengst Gmbh & Co. Kg | Pneumatic pressure regulating valve |
| CN102913654A (en) * | 2012-11-01 | 2013-02-06 | 卓旦春 | Pressure reducing valve |
| CN203571097U (en) * | 2013-10-28 | 2014-04-30 | 世格流体控制（上海）有限公司 | Sealing gasket, diaphragm assembly and pulse dust removing valve |
| CN203730876U (en) * | 2014-01-09 | 2014-07-23 | 广州市精鼎电器科技有限公司 | Fuel gas pressure stabilizing device |
| CN204176093U (en) * | 2014-10-14 | 2015-02-25 | 靖江市大诚自动化工程有限公司 | Trigger inlet and discharge valve |
| EP3070567A1 (en) * | 2015-03-16 | 2016-09-21 | Azbil Corporation | Pressure-reducing valve |
-
2016
- 2016-12-26 CN CN201611221458.5A patent/CN107061811B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110192473A1 (en) * | 2004-03-12 | 2011-08-11 | Hengst Gmbh & Co. Kg | Pneumatic pressure regulating valve |
| CN102913654A (en) * | 2012-11-01 | 2013-02-06 | 卓旦春 | Pressure reducing valve |
| CN203571097U (en) * | 2013-10-28 | 2014-04-30 | 世格流体控制（上海）有限公司 | Sealing gasket, diaphragm assembly and pulse dust removing valve |
| CN203730876U (en) * | 2014-01-09 | 2014-07-23 | 广州市精鼎电器科技有限公司 | Fuel gas pressure stabilizing device |
| CN204176093U (en) * | 2014-10-14 | 2015-02-25 | 靖江市大诚自动化工程有限公司 | Trigger inlet and discharge valve |
| EP3070567A1 (en) * | 2015-03-16 | 2016-09-21 | Azbil Corporation | Pressure-reducing valve |
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| CN107061811B (en) | 2019-05-10 |
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Address after: No. 1299, Huancheng North Road, industrial comprehensive development zone, Fengxian District, Shanghai, 201499 Patentee after: MAHLE Investment (China) Co.,Ltd. Country or region after: China Address before: No. 1299, Huancheng North Road, industrial comprehensive development zone, Fengxian District, Shanghai, 201499 Patentee before: MAHLE TECHNOLOGY INVESTMENT (CHINA) Co.,Ltd. Country or region before: China |