CN209213147U - A kind of dust cover of solenoid valve - Google Patents
A kind of dust cover of solenoid valve Download PDFInfo
- Publication number
- CN209213147U CN209213147U CN201822039689.5U CN201822039689U CN209213147U CN 209213147 U CN209213147 U CN 209213147U CN 201822039689 U CN201822039689 U CN 201822039689U CN 209213147 U CN209213147 U CN 209213147U
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- CN
- China
- Prior art keywords
- solenoid valve
- dust
- rubber pad
- guide rod
- gas vent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of dust covers of solenoid valve, belong to Solenoid Valve Technology field, it specifically includes: dust shroud and rubber pad, the dust shroud is the hollow tubular structure of lower ending opening, and lower inner side wall is equipped with screw thread, and dust shroud upper end lateral wall is equipped with deflector hole, the deflector hole is connected to gas vent, the dust shroud is equipped with guide rod towards gas vent side coaxial line, and the diameter of the guide rod is less than the diameter of gas vent, and the rubber pad is sheathed on guide rod；The utility model blocks or opens gas vent by displacement of the rubber pad under solenoid valve and ambient atmos pressure change and deformation, solenoid valve normal work is not influenced, it can effectively avoid impurity, dust in atmosphere etc. to enter solenoid valve again, can effectively extend the service life of solenoid valve.
Description
Technical field
The utility model relates to Solenoid Valve Technology field, in particular to a kind of dust cover of solenoid valve.
Background technique
Solenoid valve is electromagnetically controlled industrial equipment, for a kind of actuator that can be rapidly opened and closed, is used in Industry Control system
Direction, flow, speed and the other parameters of medium are adjusted in system；It is expected to realize that solenoid valve can cooperate different circuits
Control；Its working principle is that: when energization, electromagnetic coil generates electromagnetic force and closure member is lifted from valve seat, and valve is opened；Power-off
When, electromagnetic force disappears, and reset spring is pressed in closure member on valve seat, and valve is closed；This solenoid valve is after valve closing, valve chamber
Generally remain compressed gas, need to separately be arranged gas vent discharge residual gas, however gas vent all be connection atmosphere, it is exposed
Outside valve body, under long-term placement, a large amount of dusts can be entered in valve chamber by gas vent, and magnetic valve performance is caused to decline；And electromagnetism
For valve after continuous perseveration, valve chamber easily forms negative pressure, at this point, outside air easily enters in valve body from by gas vent, in turn
Bring impurity, the steam etc. in air into, especially in the biggish working environment of dust, dust leads to electromagnetism to the erosion of solenoid valve
Valve plunger and spool card resistance akinesia, increase the failure rate of solenoid valve, reduce the working efficiency of solenoid valve.
Utility model content
The purpose of this utility model is to provide a kind of dust covers of solenoid valve, by rubber pad in solenoid valve and the external world
The lower displacement of gas pressure intensity variation and deformation block or open gas vent, i.e., do not influence solenoid valve and work normally, and can be effective
It avoids impurity, dust in atmosphere etc. from entering solenoid valve, the service life of solenoid valve can be extended.
The above-mentioned technical purpose of the utility model has the technical scheme that
A kind of dust cover of solenoid valve, including dust shroud and rubber pad, the dust shroud are in lower ending opening
Hollow tube-like structure, lower inner side wall be equipped with screw thread, dust shroud upper end lateral wall be equipped with deflector hole, the deflector hole with
Gas vent connection, the dust shroud are equipped with guide rod towards gas vent side coaxial line, and the diameter of the guide rod is less than exhaust
The diameter in hole, the rubber pad are sheathed on guide rod.
Further, the rubber pad is dish-shaped rubber ring, and the low arc surface of the dish rubber ring is towards gas vent.
Further, the rubber pad is made of fluorubber or ethylene propylene diene rubber or silastic material.
Further, the guide rod is threadedly coupled with dust shroud.
Further, the dust shroud is equipped with interior step, and the rubber pad is held on interior step.
Further, the guide rod is equipped with back-off, and the rubber pad is held in back-off.
The beneficial effects of the utility model are:
1, dust cover is arranged in the exposed gas vent of solenoid valve in the utility model, and when solenoid valve vents, rubber pad is by interior
Portion's pressure influences, and is close to dust shroud, and deflector hole is opened, and gas is discharged via deflector hole, and air-flow is unobstructed, does not influence normal work
Make；When solenoid valve vents mouth is not vented, inner and outer air pressure is consistent, and rubber pad is fallen on static iron core under self gravitation effect, envelope
Stifled gas vent, blocks dust drop into inside solenoid valve；When occur valve chamber be negative pressure abnormal conditions when, atmosphere is via deflector hole
Into making rubber pad by atmospheric pressure, be close to gas vent, thus seal vents, hinder dust in air, miscellaneous to greatest extent
Matter enters solenoid valve, reduces the probability of solenoid valve failure, increases safety to equipment operation, and then extend making for solenoid valve
Use the service life；Secondly dust boot design is simple, easy to use, has a good application prospect.
2, the utility model is had biggish elasticity, can be played good pressure compensation effect using dish-shaped rubber ring,
It is prone to deformation under air pressure change preferably to block or open gas vent.
3, dust shroud and solenoid valve, dust shroud and guide rod are to be detachably connected, and are easily installed, and are convenient for basis
The size of static iron core gas vent replaces rubber pad, to adapt to the solenoid valve of more polytypic, secondly, convenient for clear after rubber pad dust stratification
It washes or replaces, it is only necessary to unload guide rod, so that it may easily take out rubber pad.
Detailed description of the invention
It, below will be to required in embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model
Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the structural schematic diagram of the dust cover embodiment one of the solenoid valve of the utility model；
Fig. 2 is the structural schematic diagram of the dust cover embodiment two of the solenoid valve of the utility model；
Fig. 3 is the structural schematic diagram of the dust cover embodiment three of the solenoid valve of the utility model；
Fig. 4 is the structural schematic diagram when dust cover of the solenoid valve of the utility model uses；
In figure, 1, dust cover；11, dust shroud；12, deflector hole；13, guide rod；14, interior step；15, it is buckled to；2, rubber
Rubber mat；3, solenoid valve；31, coil case；32, coil block；33, valve body；34, dynamic iron core；35, static iron core；351, gas vent；
36, reset spring；37, sealing element.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, the technical solution in embodiment is carried out it is clear, complete
Ground description.Obviously, described embodiment is only a part of the embodiment of the utility model, instead of all the embodiments.
Based on the embodiments of the present invention, institute obtained by those of ordinary skill in the art without making creative efforts
There are other embodiments, fall within the protection scope of the utility model.
As shown in figures 1-4, dust cover 1 provided by the utility model is shown in figure to be applied in solenoid valve 3, the electromagnetism
Valve 3 includes coil case 31, coil block 32, valve body 33, dynamic iron core 34, static iron core 35, reset spring 36 and sealing element 37, institute
It states coil block 32 and is connected in the coil case 31 with external power supply, the driving sliding of dynamic iron core 34 when energization, the valve body 33
There is medium flow channel, medium flow pass and connection medium flow channel and medium equipped with a valve chamber, in the valve chamber
The valve port of flow pass, in the centre of coil block 32, the lower end of the dynamic iron core 34 is equipped with for the 34 activity cooperation of dynamic iron core
Sealing element 37, sealing element 37 are arranged with reset with the mobile opening of dynamic iron core 34 or closing valve port, 34 lower end outside of dynamic iron core
Spring 36, the upper and lower side of the reset spring 36 abut coil case 31 and sealing element 37 respectively, and the static iron core 35 is hollow
Tubular structure, forms gas vent 351, and the gas vent 351 is connected to valve chamber and the external world, wherein medium flow channel, medium outflow
Channel and connection medium flow channel and medium flow pass valve port and gas vent 351 be used for solenoid valve 3 be powered when into
Row gas exchanges.Under original state, coil block 32, which is not powered, does not generate magnetic force, under the action of reset spring 36, sealing
Part 37 blocks valve port, and when the coil is energized, solenoid valve 3 starts, and dynamic iron core 34 moves up under the magnetic attraction of static iron core 35, close
Sealing 37 moves up opening valve port, and medium (such as gas) can enter medium flow pass from medium flow channel.
Dust cover 1 provided by the utility model is set to outside the static iron core 35.
Embodiment one
As shown in Figure 1, a kind of dust cover 1 of solenoid valve 3, including dust shroud 11 and rubber pad 2, the dust shroud
11 be the hollow tubular structure of lower ending opening, and lower inner side wall is equipped with screw thread, and is connect by the screw thread with solenoid valve 3, institute
11 upper end lateral wall of dust shroud is stated equipped with deflector hole 12, the deflector hole 12 is connected to gas vent 351, the dust shroud 11
It is equipped with guide rod 13 towards 351 side coaxial line of gas vent, the diameter of the guide rod 13 is less than the straight of 3 gas vent 351 of solenoid valve
Diameter, the rubber pad 2 are sheathed on guide rod 13.
In use, passing through the screw thread of 11 inner sidewall of dust shroud and the external screw thread phase being set on 3 static iron core 35 of solenoid valve
Matching is formed between 3 static iron core 35 of dust shroud 11 and solenoid valve for accommodating so that dust cover 1 is mounted on solenoid valve 3
The space of rubber pad 2, when solenoid valve 3 is vented, 351 internal pressure of gas vent is powerful in atmospheric pressure, and rubber pad 2 is by internal pressure shadow
It rings, is close to dust shroud 11, deflector hole 12 is opened, and gas is discharged via deflector hole 12, until when inner and outer air pressure is consistent, rubber pad
2 fall under self gravitation effect on static iron core 35, block gas vent 351, and blocks dust drops into inside solenoid valve 3；When out
When existing valve chamber is the abnormal conditions of negative pressure, atmosphere enters via deflector hole 12, makes rubber pad 2 by atmospheric pressure, is close to gas vent
351, thus seal vents 351, effectively reduce dust, impurity enters solenoid valve 3, reduces the probability of 3 failure of solenoid valve,
Safety is increased to equipment operation.Dust shroud 11 is detachably connected with solenoid valve 3 by screw thread, is easily installed and is replaced.
In the present embodiment, the rubber pad 2 is dish-shaped rubber ring, and the low arc surface of the dish rubber ring is towards gas vent
351.Dish-shaped rubber ring has biggish elasticity, can play good pressure compensation effect, be prone to become under air pressure change
Shape is preferably to block or open gas vent 351.Preferably, the rubber pad 2 is by fluorubber or ethylene propylene diene rubber or silicon rubber
The wear resistant corrosion resistants such as glue material and have both elasticity material be made.
In the present embodiment, the guide rod 13 is threadedly coupled with dust shroud 11, convenient for according to 35 gas vent 351 of static iron core
Size replace rubber pad 2, to adapt to the solenoid valve 3 of more polytypic, secondly, after 2 dust stratification of rubber pad convenient for cleaning or replacement,
It only needs to unload guide rod 13, so that it may easily take out rubber pad 2.
Embodiment two
As shown in Fig. 2, a kind of dust cover 1 of solenoid valve 3, including dust shroud 11 and rubber pad 2, the dust shroud
11 be the hollow tubular structure of lower ending opening, and lower inner side wall is equipped with screw thread, and is connect by the screw thread with solenoid valve 3, institute
11 upper end lateral wall of dust shroud is stated equipped with deflector hole 12, the deflector hole 12 is connected to gas vent 351, the dust shroud 11
It is equipped with guide rod 13 towards 351 side coaxial line of gas vent, the diameter of the guide rod 13 is less than the straight of 3 gas vent 351 of solenoid valve
Diameter, the rubber pad 2 are sheathed on guide rod 13.The dust shroud 11 is additionally provided with interior step 14, and the rubber pad 2 is held on
In dust cover 1 on step 14, formed between 11 inner wall of step 14 and dust shroud for accommodating rubber pad 2 in dust shroud 11
Space, the present embodiment is similar with the structure of embodiment 1 and working principle, and difference from example 1 is that, the rubber
Pad 2 is held in dust shroud 11 on step 14.It is fixed convenient for rubber pad 2, prevent in 1 installation process of dust cover rubber pad 2 from
It is slid on guide rod 13.
In the present embodiment, the rubber pad 2 is dish-shaped rubber ring.
In the present embodiment, the guide rod 13 is threadedly coupled with dust shroud 11.
Embodiment three
As shown in figure 3, a kind of dust cover 1 of solenoid valve 3, including dust shroud 11 and rubber pad 2, the dust shroud
11 be the hollow tubular structure of lower ending opening, and lower inner side wall is equipped with screw thread, and is connect by the screw thread with solenoid valve 3, institute
11 upper end lateral wall of dust shroud is stated equipped with deflector hole 12, the deflector hole 12 is connected to gas vent 351, the dust shroud 11
It is equipped with guide rod 13 towards 351 side coaxial line of gas vent, the diameter of the guide rod 13 is less than the straight of 3 gas vent 351 of solenoid valve
Diameter, the rubber pad 2 are sheathed on guide rod 13.The guide rod 13 is equipped with back-off 15, and the rubber pad 2 is held on back-off
On 15.Forms the space for accommodating rubber pad 2 between back-off 15 and 11 inner wall of dust shroud on guide rod 13, the present embodiment and
The structure of embodiment 1 is similar with working principle, and difference from example 1 is that, the rubber pad 2 is held on dust cover
In lid 11 on step 14.It is fixed convenient for rubber pad 2, prevent rubber pad 2 in 1 installation process of dust cover from sliding from guide rod 13.
In the present embodiment, the rubber pad 2 is dish-shaped rubber ring.
In the present embodiment, the guide rod 13 is threadedly coupled with dust shroud 11.
Claims (6)
1. a kind of dust cover of solenoid valve, which is characterized in that including dust shroud (11) and rubber pad (2), the dust cover
The hollow tubular structure that (11) are lower ending opening is covered, lower inner side wall is equipped with screw thread, dust shroud (11) the upper end outside
Wall is equipped with deflector hole (12), and the deflector hole (12) is connected to gas vent (351), and the dust shroud (11) is towards gas vent
(351) side coaxial line is equipped with guide rod (13), and the diameter of the guide rod (13) is less than the diameter of gas vent (351), the rubber
Rubber mat (2) is sheathed on guide rod (13).
2. the dust cover of solenoid valve as described in claim 1, which is characterized in that the rubber pad (2) is dish-shaped rubber ring,
The low arc surface direction exhaust of the dish rubber ring.
3. the dust cover of solenoid valve as claimed in claim 1 or 2, which is characterized in that the rubber pad (2) by fluorubber or
Ethylene propylene diene rubber or silastic material are made.
4. the dust cover of solenoid valve as described in claim 1, which is characterized in that the guide rod (13) and dust shroud
(11) it is threadedly coupled.
5. the dust cover of solenoid valve as described in claim 1, which is characterized in that the dust shroud (11) is equipped with interior step
(14), the rubber pad (2) is held on interior step (14).
6. the dust cover of solenoid valve as described in claim 1, which is characterized in that the guide rod (13) is equipped with back-off
(15), the rubber pad (2) is held on back-off (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822039689.5U CN209213147U (en) | 2018-12-04 | 2018-12-04 | A kind of dust cover of solenoid valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822039689.5U CN209213147U (en) | 2018-12-04 | 2018-12-04 | A kind of dust cover of solenoid valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209213147U true CN209213147U (en) | 2019-08-06 |
Family
ID=67463205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822039689.5U Expired - Fee Related CN209213147U (en) | 2018-12-04 | 2018-12-04 | A kind of dust cover of solenoid valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209213147U (en) |
-
2018
- 2018-12-04 CN CN201822039689.5U patent/CN209213147U/en not_active Expired - Fee Related
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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: 20190806 Termination date: 20201204 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |