CN208237090U - A kind of air horn solenoid valve - Google Patents
A kind of air horn solenoid valve Download PDFInfo
- Publication number
- CN208237090U CN208237090U CN201820828252.7U CN201820828252U CN208237090U CN 208237090 U CN208237090 U CN 208237090U CN 201820828252 U CN201820828252 U CN 201820828252U CN 208237090 U CN208237090 U CN 208237090U
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- CN
- China
- Prior art keywords
- pedestal
- valve core
- coil block
- valve plug
- movable valve
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- Expired - Fee Related
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Abstract
The utility model discloses a kind of air horn solenoid valve, including valve body, coil block, quiet spool and movable valve plug, valve body includes shell and pedestal, and pedestal is equipped with gas outlet, and gas outlet inner end is equipped with valve core movement chamber, and valve core movement chamber side wall is equipped with air inlet；Valve core installation cavity is equipped in the skeleton of coil block, quiet spool is mounted on valve core installation cavity top, quiet spool lower part is equipped with guiding steel bushing, movable valve plug is slidably mounted in guiding steel bushing, movable valve plug is connected with quiet valve core chamber by reset spring, and end face seal pad is equipped at the center of movable valve plug lower end surface, and end face seal pad is corresponding with gas outlet inner port seal face on pedestal, under action of reset spring, movable valve plug is sealed by the end face seal pad of its bottom and the seal face of the gas outlet inner end of pedestal；Coil block and pedestal with outer shell rivething by being linked together.The utility model structure is simple, is easily installed, and can effectively solve the defect that existing air horn solenoid valve degree of protection is low, weatherability is poor, the service life is low.
Description
Technical field
The utility model relates to a kind of solenoid valves, and in particular to a kind of air horn solenoid valve.
Background technique
Existing commercial vehicle pneumatic loudspeaker control solenoid valve includes valve body, coil block and spool, in which: spool includes movable valve plug
With quiet spool, valve body includes shell and pedestal, and the bottom of pedestal is axially arranged with step gas outlet, and gas outlet inner end is equipped with installation
Chamber, installation cavity lower section are radially provided with air inlet, and coil block is sleeved on the outer of pedestal valve core installation cavity cavity and is placed in bottom
On seat, coil block is fastened on pedestal by outer casing screw；The top interference of valve core installation cavity is equipped with quiet spool, quiet
It is sealed between spool and pedestal by O-ring seals, the lower slide of valve core installation cavity is equipped with movable valve plug, quiet spool and movable valve plug
Between connected by cylindrical reduction spring, the lower end surface of movable valve plug is tapered surface；The inner face of the gas outlet is equipped with close
Packing, the centre of gasket are equipped with the through-hole adaptable with exhaust counterbore；Under the action of reset spring, the tapered portion of movable valve plug
Position presses against the connection for realizing sealing on the through-hole of gasket, and separating air through hole and being vented between counterbore；Coil block
Lead is drawn by rubber sleeve.
There are several respects in use in existing commercial vehicle pneumatic loudspeaker control solenoid valve:
First is that degree of protection is low, easily intake, leads to coil ablation, coil open circuit, short circuit.The reason is that: coil block draws
There are gaps to be easy water inlet between line and rubber sleeve, rubber sleeve and shell；Pass through straight screw connection between plastic shell and valve seat,
It is easily-deformable to cannot achieve sealing, lead to water inlet in valve body.
Second is that weatherability is poor.The reason is that: due to being sealed between quiet spool and valve seat by squeezing O-ring seal, sealing ring
Deflection is big；Solenoid valve is threadedly coupled entirely through the screw thread of plastic shell with valve seat, after by high temperature and low-temperature impact, plastic spiral
Line generates contraction distortion, and loose or dislocation occurs in threaded connection place；The envelope air cushion sharp corner that is sealed into of envelope air cushion and movable valve plug seals,
Serious by gasket sharp corner deformation after high temperature and low temperature, sealing effect is deteriorated；Cause solenoid valve weatherability poor in this way.
Third is that service life is low.The reason is that: other than both the above reason, the material that spool uses is outside electrical pure iron
Zinc-plated, movable valve plug moves up and down at work, and zinc coat abrasion easily gets rusty and causes electromagnetism defective valve.
Due to the defects such as degree of protection is low, weatherability is poor, the service life is low, car horn function is caused not to be available, to automobile
Safety in utilization affect, lead to vehicle performance unstability, this generally existing security risk always by
Consumer complains.
Summary of the invention
The purpose of this utility model is to solve the deficiencies in the prior art, and it is high, resistance to provide a kind of proposition degree of protection
Vibration performance is good, air horn solenoid valve with long service life.
The technical solution of the utility model is thus: a kind of air horn solenoid valve, including valve body, coil block, quiet spool
And movable valve plug, in which: valve body includes shell and pedestal, and the bottom of pedestal is axially arranged with gas outlet, and gas outlet inner end is equipped with spool
Chamber is moved, the side wall of valve core movement chamber is equipped with air inlet, and air inlet and air outlet are connected to by valve core movement chamber；Coil block
Positioned at the top of pedestal, coil block includes skeleton and coil, and jacket is fixed outside coil block and with pedestal, and feature exists
In: the gas outlet inner end of the base bottom is equipped with seal face,
Valve core installation cavity, the valve core movement chamber phase of valve core installation cavity and pedestal are axially arranged in the skeleton of the coil block
It adapts to and is linked as a cavity；
The quiet spool is the cylindrical body that one end is thick, one end is thin, and the butt end interference of quiet spool is mounted on valve core installation cavity
Top, seamless be welded has guiding steel bushing on the taper end diameter of axle of quiet spool, is oriented between steel bushing and valve core installation cavity and is interference fitted, is oriented to
The valve core movement that steel bushing extends to pedestal to the lower part of valve core installation cavity is intracavitary, is oriented to the diameter of axle outside the end of steel bushing and is equipped with annular
Boss, quiet spool are fixed on the base by pressing plate by guiding steel bushing, are fixed between pressing plate and pedestal by sunk screw；
The movable valve plug is slidably mounted in guiding steel bushing, and the upper surface of movable valve plug is equipped with spring installation cavity, spring installation
Intracavitary to be equipped with reset spring, one end of reset spring withstands on the lower end surface of quiet spool, and the other end of reset spring withstands on spring
The bottom of installation cavity；The lower end surface of movable valve plug is equipped with end face seal corresponding with the seal face of gas outlet inner end on pedestal
Pad, under action of reset spring, movable valve plug passes through the sealed end of the end face seal pad of its lower end surface and the gas outlet inner end of pedestal
Face sealing；
Reset spring top in terms of radial section is trapezoidal, lower part is cylindrical；
The shell is using metal material, coil block and pedestal by being linked together with outer shell rivething.
Preferably, using whole envelope modeling outside the coil block, lead is linked together with coil block.
Preferably, being equipped with groove along the diameter of axle among the annular convex platform of guiding steel bushing, it is equipped with O-ring seal in groove, is led
It is sealed between steel bushing and pedestal by O-ring seal.
Preferably, the end face seal pad of the movable valve plug lower end surface use embedded inverted trapezoidal structure, by vulcanization with
Movable valve plug is integrally formed.
Preferably, the movable valve plug and quiet spool use the stainless iron material of soft magnetism.
Preferably, the outer wall of the movable valve plug is coated with DOW CORNING coating.
The utility model has the advantages that
The utility model structure is simple, is easily installed, and it is low, resistance to can effectively to solve existing air horn solenoid valve degree of protection
The defect that time property is poor, the service life is low.
Reset spring shape trapezoidal, lower cylindrical shape structure using top, can avoid spring from being stuck completely；
Using whole envelope modeling outside coil block, lead is linked together with coil block, and water will not enter coil inside, is prevented
It is high to protect grade, therefore the service life is long；
It is oriented between steel bushing and pedestal and is equipped with O-ring seal, realize radial seal, cannot be introduced into water inside solenoid valve, together
When ensure that air-tightness；
The end face seal pad of movable valve plug lower end surface uses embedded inverted trapezoidal structure, and the small the inside of mouth is big, and passes through vulcanization one
It is body formed, it can effectively avoid rubber the phenomenon that falling off after valve hole part envelope rubber, extend the service life of solenoid valve；
Movable valve plug and quiet spool use the stainless iron material of soft magnetism, and corrosion resistance and wearability are much better than old structure, and by
There is no situations of getting rusty after abrasion, to increase the service life of solenoid valve；
Movable valve plug outer wall sprays antifriction DOW CORNING coating, and can effectively avoid in gas circuit leads to low temperature icing phenomenon containing moisture
Generation；
Solenoid valve is totally linked together using riveting, intensity height, high production efficiency, while can effectively reduce product cost.
Detailed description of the invention
Fig. 1 is the utility model air horn electromagnetic valve structure figure.
Fig. 2 is the structure chart of reset spring.
Fig. 3 is the scheme of installation of end face seal pad.
It is as shown in the figure: 1, shell；2, pedestal；3, gas outlet；3-1, gas outlet inner end seal face；4, air inlet；5,
Coil block；5-1, lead；6, quiet spool；7, movable valve plug；8, it is oriented to steel bushing；9, pressing plate；10, reset spring；10-1, trapezoidal knot
Structure；10-2, cylindrical structure；11, end face seal pad；12, O-ring seal；13, sunk screw.
Specific embodiment
The utility model is as shown in Figure 1 to Figure 3:
A kind of air horn solenoid valve, including valve body, coil block 5, quiet spool 6 and movable valve plug 7, in which: valve body includes outer
Shell 1 and pedestal 2, the bottom of pedestal 2 are axially arranged with gas outlet 3, and 3 inner end of gas outlet is equipped with seal face 3-1,3 inner end of gas outlet
Equipped with valve core movement chamber, the side wall of valve core movement chamber is equipped with air inlet 4, and air inlet 4 and gas outlet 3 are connected by valve core movement chamber
It is logical；Coil block 5 is located at the top of pedestal 2, and coil block 5 includes skeleton and coil, is sealed outside coil block 5 using whole
Modeling, lead 5-1 are linked together with coil block 5；
Valve core installation cavity, the valve core movement chamber of valve core installation cavity and pedestal are axially arranged in the skeleton of the coil block 5
It is adapted and is linked as a cavity.
The quiet spool 6 is the cylindrical body that one end is thick, the other end is thin, and the butt end interference of quiet spool 6 is mounted on spool installation
The top of chamber, seamless be welded has guiding steel bushing 8 on the taper end diameter of axle of quiet spool 6, is oriented to interference between steel bushing 8 and valve core installation cavity and matches
It closes, the valve core movement that guiding steel bushing 8 extends to pedestal to the lower part of valve core installation cavity is intracavitary, is oriented to the diameter of axle outside the end of steel bushing 8
It is equipped with annular convex platform, quiet spool 6 is fixed on pedestal 2 by being oriented to steel bushing 8 by pressing plate 9, guiding 8 annular convex platform of steel bushing
Centre is equipped with groove along the diameter of axle, is equipped with O-ring seal 12 in groove, is oriented to close by O-ring seal 12 between steel bushing 8 and pedestal 2
Envelope, it is fixed by sunk screw 13 between pressing plate 9 and pedestal 2；
The movable valve plug 7 is slidably mounted in guiding steel bushing 8, and the upper surface of movable valve plug 7 is equipped with spring installation cavity, spring peace
Reset spring 10 is installed in behaveing affectedly, one end of reset spring 10 withstands on the lower end surface of quiet spool 6, the other end of reset spring 10
Withstand on the bottom of spring installation cavity；The lower end surface of movable valve plug 7 is equipped with opposite with the seal face 3-1 of gas outlet inner end on pedestal
The end face seal pad 11 answered, under the effect of reset spring 10, end face seal pad 11 and pedestal that movable valve plug 7 passes through its lower end surface
The seal face 3-1 of gas outlet inner end is sealed；
The trapezoidal structure 10-1 in the top in terms of radial section of reset spring 10, lower part 10-2 cylindrical.
The shell 1 is metal material, and shell 1 covers on outside coil block 5 and is linked as one by riveting and the fixation of pedestal 2
Body.
The end face seal pad 11 of 7 lower end surface of movable valve plug uses embedded inverted trapezoidal structure, in which: and included angle A is 20 °,
It is integrally formed by vulcanization and movable valve plug 7.
The movable valve plug 7 and quiet spool 6 use the stainless iron material of soft magnetism.
The outer wall of the movable valve plug 7 is coated with DOW CORNING coating.
Working principle of the utility model is:
The utility model is normal-closed electromagnetic valve, i.e., in the normal state, air inlet 4 is not turned on gas outlet 3.It is powered
Afterwards, coil generates magnetic field, and static iron core 6 and movable valve plug 7 are magnetized and generate electromagnetic force, and movable valve plug 7 overcomes under the action of electromagnetic force
Spring force moves upwards, and solenoid valve is opened, and air inlet 4 is connected with gas outlet 3；After power-off, magnetic field disappears, and electromagnetic force disappears, and moves
Spool 7 resets under spring force, and the end face seal pad 11 of 7 lower end surface of movable valve plug compresses the seal face of gas outlet inner end
3-1, closes gas circuit, and solenoid valve is closed.
Claims (6)
1. a kind of air horn solenoid valve, including valve body, coil block, quiet spool and movable valve plug, in which: valve body includes shell and bottom
Seat, the bottom of pedestal are axially arranged with gas outlet, and gas outlet inner end is equipped with valve core movement chamber, the side wall of valve core movement chamber be equipped with into
Port, air inlet and air outlet are connected to by valve core movement chamber；Coil block is located at the top of pedestal, and coil block includes skeleton
And coil, jacket are fixed outside coil block and with pedestal, it is characterised in that: the gas outlet inner end of the base bottom is equipped with
Seal face,
It is axially arranged with valve core installation cavity in the skeleton of the coil block, the valve core movement chamber of valve core installation cavity and pedestal is adapted
And it is linked as a cavity；
The quiet spool is the cylindrical body that one end is thick, one end is thin, and the butt end interference of quiet spool is mounted on the top of valve core installation cavity,
Seamless be welded has guiding steel bushing on the taper end diameter of axle of quiet spool, is oriented between steel bushing and valve core installation cavity and is interference fitted, is oriented to steel bushing
The valve core movement for extending to pedestal to the lower part of valve core installation cavity is intracavitary, is oriented to the diameter of axle outside the end of steel bushing and is equipped with convex annular
Platform, quiet spool are fixed on the base by pressing plate by guiding steel bushing, are fixed between pressing plate and pedestal by sunk screw；
The movable valve plug is slidably mounted in guiding steel bushing, and the upper surface of movable valve plug is equipped with spring installation cavity, in spring installation cavity
Reset spring is installed, one end of reset spring withstands on the lower end surface of quiet spool, and the other end of reset spring withstands on spring installation
The bottom of chamber；The lower end surface of movable valve plug is equipped with end face seal pad corresponding with the seal face of gas outlet inner end on pedestal,
Under action of reset spring, movable valve plug is close by the seal face of the end face seal pad of its lower end surface and the gas outlet inner end of pedestal
Envelope；
Reset spring top in terms of radial section is trapezoidal, lower part is cylindrical；
The coil block and pedestal with outer shell rivething by being linked together.
2. a kind of air horn solenoid valve according to claim 1, it is characterised in that: using whole envelope outside the coil block
Modeling, lead are linked together with coil block.
3. a kind of air horn solenoid valve according to claim 1, it is characterised in that: among the annular convex platform of the guiding steel bushing
It is equipped with groove along the diameter of axle, O-ring seal is equipped in groove, is oriented between steel bushing and pedestal and is sealed by O-ring seal.
4. a kind of air horn solenoid valve according to claim 1, it is characterised in that: the end face seal of the movable valve plug lower end surface
Pad uses embedded inverted trapezoidal structure, is integrally formed by vulcanization and movable valve plug.
5. a kind of air horn solenoid valve according to claim 1, it is characterised in that: the movable valve plug and quiet spool use soft magnetism
Stainless iron material.
6. a kind of air horn solenoid valve according to claim 1, it is characterised in that: the outer wall of the movable valve plug is coated with health
Peaceful coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820828252.7U CN208237090U (en) | 2018-05-31 | 2018-05-31 | A kind of air horn solenoid valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820828252.7U CN208237090U (en) | 2018-05-31 | 2018-05-31 | A kind of air horn solenoid valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208237090U true CN208237090U (en) | 2018-12-14 |
Family
ID=64576114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820828252.7U Expired - Fee Related CN208237090U (en) | 2018-05-31 | 2018-05-31 | A kind of air horn solenoid valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208237090U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110553042A (en) * | 2018-05-31 | 2019-12-10 | 湖北中生汽车电器有限公司 | Air horn electromagnetic valve |
-
2018
- 2018-05-31 CN CN201820828252.7U patent/CN208237090U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110553042A (en) * | 2018-05-31 | 2019-12-10 | 湖北中生汽车电器有限公司 | Air horn electromagnetic valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181214 Termination date: 20210531 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |