CN107061811B - Diaphragm protective device and pressure regulator valve equipped with diaphragm protective device - Google Patents
Diaphragm protective device and pressure regulator valve equipped with diaphragm protective device Download PDFInfo
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- CN107061811B CN107061811B CN201611221458.5A CN201611221458A CN107061811B CN 107061811 B CN107061811 B CN 107061811B CN 201611221458 A CN201611221458 A CN 201611221458A CN 107061811 B CN107061811 B CN 107061811B
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- diaphragm
- ring bodies
- matrix
- connector
- spring
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- 230000001681 protective effect Effects 0.000 title claims abstract description 32
- 239000011159 matrix material Substances 0.000 claims abstract description 107
- 230000007423 decrease Effects 0.000 claims description 7
- 230000001105 regulatory effect Effects 0.000 claims description 7
- 230000001276 controlling effect Effects 0.000 claims description 5
- 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
- 239000011347 resin Substances 0.000 claims description 4
- 229920005989 resin Polymers 0.000 claims description 4
- 239000012745 toughening agent Substances 0.000 claims description 4
- 230000003447 ipsilateral effect Effects 0.000 claims description 3
- 239000003795 chemical substances by application 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 4
- 230000008859 change Effects 0.000 description 5
- 230000006872 improvement Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 239000011941 photocatalyst Substances 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 239000003063 flame retardant Substances 0.000 description 2
- 230000000670 limiting effect Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000000843 powder Substances 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
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process 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
- 238000001727 in vivo Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
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- 238000000746 purification Methods 0.000 description 1
- 230000002829 reductive effect Effects 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 protective device and the pressure regulator valve equipped with diaphragm protective device.The present invention relates to machinery fields.Diaphragm protective device, including a matrix, the upper end of matrix are equipped with the first connector for connecting diaphragm, and the lower end of matrix is equipped with the second connector for connecting spring.The present invention protects diaphragm by matrix, it is therefore prevented that corrosion of the gas leakage to diaphragm.The present invention is by being equipped with the first connector for connecting diaphragm in the upper end of matrix, the fixation of both diaphragm and matrix can be realized, matrix both may be implemented instead of film contact connecting spring by the second connector, realized that diaphragm remains to drive spring movement, guarantee the effect for realizing pressure regulation.
Description
Technical field
The present invention relates to field of mechanical technique more particularly to diaphragm-type pressure regulating valves.
Background technique
It when diaphragm-type pressure regulating valve is applied in engine crankshaft ventilation system, is generally used in combination, is used for oil mist separator
Adjust control crankcase pressure.
It is at pressure regulator valve air inlet that pressure regulator valve, which adjusts crankcase pressure by the change in location and spring force of diaphragm,
Pressure.When the pressure of pressure regulation valve air gate be greater than pressure regulator valve air inlet at pressure when, pressure difference acts on diaphragm, spring quilt
Compression, the distance of diaphragm to gas outlet become smaller, 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.Since diaphragm is in gas leakage in pressure regulator valve working environment
In gas, and by pulse warpage, and the ingredient containing corrosion rubber in blow-by gas.Diaphragm will appear crackle after being corroded,
It is even ruptured when serious, in turn results in pressure regulator valve disabler, influence crankcase ventilation system.
Summary of the invention
The object of the present invention is to provide a kind of diaphragm protective device and the pressure regulator valve equipped with diaphragm protective device, with solution
At least one certainly above-mentioned technical problem.
Technical problem solved by the invention can be realized using following technical scheme:
Diaphragm protective device, which is characterized in that including a matrix, the upper end of described matrix is equipped with for connecting diaphragm
First connector, the lower end of described matrix are equipped with the second connector for connecting spring.
The present invention protects diaphragm by matrix, it is therefore prevented that corrosion of the gas leakage to diaphragm.The present invention passes through in matrix
Upper end be equipped with the first connector for connecting diaphragm, the fixation of both diaphragm and matrix can be realized, pass through the second company
Matrix had both may be implemented instead of film contact connecting spring in fitting, realizes that diaphragm remains to drive spring movement, guarantees to realize pressure regulation
Effect.
As a preferred embodiment, first connector is one for being interference fitted connection and opening upwards with diaphragm
Groove, the central axis of the groove and the central axis of described matrix are in same straight line.It is convenient for by being interference fitted connection
Realize replacement, dismounting.
Further preferably, first connector is one for the through-hole with diaphragm interference fit connection, the through-hole
Central axis and the central axis of described matrix be in same straight line.
The present invention is interference fitted by through-hole and diaphragm, has been saved the cost of matrix, has still been able to achieve the effect of protective film piece.
As a preferred embodiment, 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.
Convenient for realizing the fixation of spring by the second connector.
The radial outer periphery of described matrix is equipped with one for controlling the diversion division of gas flow, and the diversion division is hollow in one
Cone, the internal diameter of the cone gradually successively decrease 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 equipped with diversion division by matrix, the top of gas flow matrix is prevented, to further prevent gas
Touch diaphragm.
As a preferred embodiment, described matrix includes that two central axis are in collinear ring bodies, 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 inner wall of first ring bodies is described matrix for connecting diaphragm
Joint face；
The outer diameter of first ring bodies is greater than the outer diameter of second ring bodies, the outer diameter of first ring bodies and institute
The difference for stating the outer diameter of the second ring bodies is greater than the radial thickness of the spring, and second ring bodies is the second connector, institute
The outer wall for stating the second ring bodies is joint face of the described matrix for connecting spring.
For the present invention by the structure of optimization matrix, structure is simple, while protecting diaphragm, controls cost.
Described matrix further includes a hollow cone；The outer wall of the upper end of the cone and 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 that gas be further prevented to touch diaphragm.
Described matrix is the matrix made of PA6 or PA66.While guaranteeing 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 resin 22%~60%, heat filling 20%~
30%, glass fibre 5%~15%, halogen-free flame retardants 1.0%~6%, toughener 2.0%~6%, coupling agent 0.1%~
0.5%, foaming agent 1%~2%.
The present invention can be with by heat filling while realizing corrosion resistant effect by the formula of improvement matrix
It is absorbed into the intracorporal heat of gas when realizing to substrate contact gas, while preventing heat from distributing outwardly, reduces the temperature of gas,
Reduce the corrosivity of gas.
Pressure regulator valve equipped with diaphragm protective device, including a valve body and valve deck, the valve body are equipped with one and are used for and crankshaft
The air inlet of case conducting is additionally provided with a gas outlet on the valve body, is equipped with a pressure regulating device, the pressure regulating device in the valve body
Including diaphragm and spring, the central axis of the diaphragm and spring is on same straight line, which is characterized in that the diaphragm and institute
It states and is equipped with a diaphragm protective device between spring；
The diaphragm protective device includes a matrix made of resistant material, and the upper end of described matrix, which is equipped with, to be used for
The first connector of diaphragm is connected, the lower end of described matrix is equipped with the second connector for connecting spring.
The present invention prevents corrosion of the intracorporal gas leakage of crankcase guide valve to diaphragm by diaphragm protective device, protects
Diaphragm.
As a preferred embodiment, first connector is one for being interference fitted connection and opening upwards with diaphragm
Groove, the central axis of the groove and the central axis of described matrix are in same straight line；
The diaphragm is equipped with the protrusion to match with the groove.
Replacement, dismounting are easy to implement by being interference fitted connection.
Further preferably, first connector is one for the through-hole with diaphragm interference fit connection, the through-hole
Central axis and the central axis of described matrix be in same straight line；
The diaphragm is equipped with the protrusion to match with the through-hole.
The present invention is interference fitted by through-hole and diaphragm, has been saved the cost of matrix, has still been able to achieve the effect of protective film piece.
The junction of the valve body and the valve deck is equipped with one for fixing the accommodating chamber of the diaphragm, the diaphragm it is outer
Edge is equipped with the protrusion to match with the accommodating chamber.It is easy to implement the connection that diaphragm is fixed on the valve body Yu the valve deck
Place.
The valve deck is equipped with the through-hole be connected with atmosphere；
The air inlet is respectively positioned on the ipsilateral 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 equipped with the annular projection for fixed spring, the central axis of the annular projection and the diaphragm
Central axis be on same straight line, the annular projection is equipped with one for exporting the through-hole of gas, is with the through-hole
The gas outlet；
The upper end of the spring and described matrix connect, and the lower end of the spring is outer with the annular projection
Wall connects.
The present invention adjusts the pressure of pressure regulator valve air inlet by the change in location and spring force of diaphragm.When pressure regulator valve goes out
When the pressure of port is larger, pressure difference is acted on diaphragm, and spring is compressed, and the distance of diaphragm to annular projection becomes smaller, 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 equipped with one for controlling the diversion division of gas flow, and the diversion division is hollow in one
Cone, the internal diameter of the cone gradually successively decrease 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 includes an inner cavity for gas circulation, and the internal diameter of the inner cavity is not less than the outer diameter of described matrix,
And the difference of the outer diameter of the internal diameter and described matrix of the inner cavity is not more than 3cm.
The present invention is equipped with diversion division by matrix, the top of gas flow matrix is prevented, to further prevent gas
Touch diaphragm.Outer diameter by limiting matrix prevents gas from touching diaphragm, protects diaphragm.
Detailed description of the invention
Fig. 1 is a kind of cross-sectional view of diaphragm protective device of the invention；
Fig. 2 is the partial structure diagram for the pressure regulator valve that the present invention is equipped with diaphragm protective device.
Specific embodiment
In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, tie below
Conjunction is specifically illustrating that the present invention is further explained.
Referring to Fig. 1, Fig. 2, diaphragm protective device 1, including a matrix, the upper end of matrix are equipped with for connecting diaphragm
A connection piece 11, the lower end of matrix are equipped with the second connector 12 for 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 in the upper end of matrix by being equipped with for connecting diaphragm
The fixation of both diaphragm and matrix can be realized in first connector, and matrix both may be implemented instead of diaphragm by the second connector
Spring is connected, realizes that diaphragm remains to drive spring movement, guarantees the effect for realizing pressure regulation.
As a preferred embodiment, the first connector be one for diaphragm be interference fitted connection and opening upwards it is recessed
Slot, the central axis of groove and the central axis of matrix are in same straight line.Replacement is easy to implement by being interference fitted connection, is torn open
Dress.
Further preferably, the first connector is one for the through-hole with diaphragm interference fit connection, the central axis 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,
Still it is able to achieve the effect of protective film piece.
As a preferred embodiment, the second connector is a ring bodies, and the outer wall of ring bodies is matrix for contact spring
Contact surface；The central axis of ring bodies and the central axis of matrix are on same straight line.Convenient for real by the second connector
The fixation of existing spring.
The radial outer periphery of matrix is equipped with one for controlling the diversion division 13 of gas flow, and diversion division 13 is in a hollow circular cone
Body, the internal diameter of cone gradually successively decrease 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 equipped with diversion division by matrix, the top of gas flow matrix is prevented, so that gas be further prevented to touch film
Piece.
As a preferred embodiment, matrix includes that two central axis are in collinear ring bodies, and 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 inner wall of the first ring bodies are the joint face that matrix is used to connect diaphragm；The outer diameter of first ring bodies is greater than the
The difference of the outer diameter of the outer diameter of two ring bodies, the outer diameter of the first ring bodies and the second ring bodies is greater than the radial thickness of spring, the
Two ring bodies are the second connector, and the outer wall of the second ring bodies is the joint face that matrix is used for connecting spring.The present invention passes through excellent
Change the structure of matrix, structure is simple, while protecting diaphragm, controls cost.
Matrix further 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.It is prevented by cone
The top of gas flow matrix, so that gas be further prevented to touch diaphragm.
Matrix is the matrix made of PA6 or PA66.While guaranteeing the service life of matrix, the corruption to diaphragm is prevented
Erosion.
Matrix includes the raw material of following mass percent, PA6 resin 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%.The present invention may be used also while realizing corrosion resistant effect by heat filling by the formula of improvement matrix
To be absorbed into the intracorporal heat of gas when realizing to substrate contact gas, while preventing 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 resin 22-60%, heat filling 20-30%, glass fibre
5%~15%, active carbon particle 5%-10%, white phosphorus 1%, fluorescent powder 3%~5%, photocatalyst 3%~10%, toughener
2.0-6%, coupling agent 0.1-0.5%, foaming agent 1%~2%.The present invention passes through the formula of improvement matrix, corrosion-resistant realizing
Effect while, can also realize the purification to air, white phosphorus and fluorescent powder in heat filling endothermic process, heat hair
Light, improves the clean-up effect of photocatalyst, purifies under the collective effect of photocatalyst and active carbon particle to gas.
Referring to fig. 2, the pressure regulator valve equipped with diaphragm protective device 1, including a valve body 4 and valve deck 3, valve body 4 are equipped with one and use
In being additionally provided with a gas outlet 42 on the air inlet 41 be connected with crankcase, valve body 4, a pressure regulating device, pressure regulator are equipped in valve body 4
Structure includes diaphragm 2 and spring, and diaphragm 2 and the central axis of spring are on same straight line, and a film is equipped between diaphragm 2 and spring
Piece protective device；Diaphragm protective device includes a matrix made of resistant material, and the upper end of matrix is equipped with for connecting
First connector of diaphragm 2, the lower end of matrix are equipped with the second connector for connecting spring.The present invention passes through diaphragm
Protective device prevents corrosion of the gas leakage to diaphragm 2 in crankcase guiding valve body 4, protects diaphragm 2.
The junction of valve body 4 and valve deck 3 is equipped with one for fixing the accommodating chamber of diaphragm 2, and the outer edge of diaphragm 2 is equipped with and appearance
The protrusion that chamber of receiving matches.It is easy to implement the junction that diaphragm 2 is fixed on valve body 4 Yu valve deck 3.
Valve deck 3 is equipped with the through-hole be connected with atmosphere；Air inlet 41 and gas outlet 42 are respectively positioned on the ipsilateral of diaphragm 2, and into
Port 41 and gas outlet 42 are located at the lower section of diaphragm 2；Valve body 4 is equipped with the annular projection for fixed spring, annular projection
The central axis of central axis and diaphragm 2 is on same straight line, and annular projection is equipped with a through-hole for being used to export gas, with
Through-hole is gas outlet 42；The upper end of spring is connect with substrate contact, and the lower end of spring contacts company with the outer wall of annular projection
It connects.The present invention adjusts the pressure of pressure regulator valve air inlet 41 by the change in location and spring force of diaphragm 2.When pressure regulator valve outlet
When the pressure of mouth 42 is larger, pressure difference is acted on diaphragm 2, and spring is compressed, and the distance of diaphragm 2 to annular projection becomes smaller, 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 be connected on valve deck with atmosphere is first through hole, and first through hole connects a regulator, and regulator includes
The opposite airflow channel of two airflow directions, respectively for first through hole conveying gas the first airflow channel, one be used for
Second airflow 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 airflow channel is connected with first through hole, the second airflow channel
Outlet side and atmosphere；First airflow channel is located at the lower section of the second airflow channel, the outlet side of the first airflow channel with
The inlet end of second airflow channel passes through a rotatable baffle connection；When air pump conveys gas to through-hole, baffle is in air-flow
Under the action of turn over, move in the second airflow channel, and baffle stop the second airflow channel conducting；When air pump stops working
When, baffle moves in the first airflow channel, and baffle stops the conducting of the first airflow channel, gas due to turning under gravity
Pump one microprocessor system of connection, microprocessor system connection one is for detecting the first air pressure transmission of air pressure at first through hole
Sensor and the second baroceptor for detecting air pressure below diaphragm.Convenient for the barometric information in control through-hole.
The radial outer periphery of matrix is equipped with one for controlling the diversion division of gas flow, and diversion division is in a hollow cone,
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 includes an inner cavity for gas circulation, inner cavity
Internal diameter is not less than the outer diameter of matrix, and the difference of the outer diameter of the internal diameter and matrix of inner cavity is not more than 3cm.The present invention passes through on matrix
Equipped with diversion division, the top of gas flow matrix is prevented, so that gas be further prevented to touch diaphragm 2.By limiting matrix
Outer diameter prevent gas from touching diaphragm 2, protect diaphragm 2.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, 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 (8)
1. a kind of diaphragm protective device, which is characterized in that including a matrix, the upper end of described matrix is equipped with for connecting diaphragm
The first connector, the lower end of described matrix is equipped with the second connector for connecting spring；
Second connector is ring bodies, and the outer wall of the ring bodies is the contact surface that described matrix is used for contact spring；
The radial outer periphery of described matrix is equipped with the diversion division for controlling gas flow, and the diversion division is in hollow cone,
The internal diameter of the cone gradually successively decreases from bottom to up；
The central axis of the central axis and described matrix of second connector and the cone is in same straight line.
2. diaphragm protective device according to claim 1, which is characterized in that first connector is one to be used for and diaphragm
The groove of interference fit connection and opening upwards, the central axis of the groove and the central axis of described matrix are in always
Line.
3. diaphragm protective device according to claim 1, which is characterized in that first connector is one to be used for and diaphragm
It is interference fitted the through-hole of connection, the central axis of the through-hole and the central axis of described matrix are in same straight line.
4. diaphragm protective device according to claim 1, which is characterized in that described matrix includes that two central axis are in
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 inner wall of first ring bodies is the company that described matrix is used to connect diaphragm
Junction；
The outer diameter of first ring bodies is greater than the outer diameter of second ring bodies, the outer diameter of first ring bodies and described the
The difference of the outer diameter of two ring bodies is greater than the radial thickness of the spring, and second ring bodies is the second connector, and described the
The outer wall of two ring bodies is the joint face that described matrix is used for connecting spring.
5. diaphragm protective device as claimed in any of claims 1 to 4, which is characterized in that described matrix is by PA6
Or matrix made of PA66.
6. diaphragm protective device as claimed in any of claims 1 to 4, which is characterized in that described matrix includes such as
The raw material of lower mass percent, PA6 resin 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%.
7. a kind of pressure regulator valve equipped with diaphragm protective device, including valve body and valve deck, the valve body, which is equipped with, to be used for and crankcase
The air inlet of conducting is additionally provided with gas outlet on the valve body, is equipped with pressure regulating device in the valve body, the pressure regulating device includes film
The central axis of piece and spring, the diaphragm and spring is on same straight line,
It is protected it is characterized in that, being equipped with diaphragm of any of claims 1-6 such as between the diaphragm and the spring
Device；
It is connected to the diaphragm interference fit first connector, the spring pocket is set to outside second connector.
8. the pressure regulator valve according to claim 7 equipped with diaphragm protective device, which is characterized in that the valve body and the valve
The junction of lid is equipped with the accommodating chamber for fixing the diaphragm, and the outer edge of the diaphragm is equipped with to match with the accommodating chamber
Protrusion；
The air inlet is respectively positioned on the ipsilateral of the diaphragm with the gas outlet, and the air inlet and the gas outlet are located at institute
State the lower section of diaphragm；
The valve body is equipped with the annular projection for fixed spring, in the central axis of the annular projection and the diaphragm
Mandrel line is on same straight line, and the annular projection is equipped with the through-hole for exporting gas, is gone out for described in the through-hole
Port；
The upper end of the spring and described matrix connect, and the lower end of the spring and the outer wall of the annular projection connect
Touching 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 CN107061811A (en) | 2017-08-18 |
| CN107061811B true 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)
| Country | Link |
|---|---|
| CN (1) | CN107061811B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE502005003985D1 (en) * | 2004-03-12 | 2008-06-19 | Hengst Gmbh & Co Kg | PNEUMATIC PRESSURE CONTROL VALVE |
| CN102913654B (en) * | 2012-11-01 | 2014-08-13 | 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 |
| JP2016169854A (en) * | 2015-03-16 | 2016-09-23 | アズビル株式会社 | Pressure reduction valve |
-
2016
- 2016-12-26 CN CN201611221458.5A patent/CN107061811B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN107061811A (en) | 2017-08-18 |
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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 |
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