CN207864671U - Double containment gas spray valve - Google Patents
Double containment gas spray valve Download PDFInfo
- Publication number
- CN207864671U CN207864671U CN201820105385.1U CN201820105385U CN207864671U CN 207864671 U CN207864671 U CN 207864671U CN 201820105385 U CN201820105385 U CN 201820105385U CN 207864671 U CN207864671 U CN 207864671U
- Authority
- CN
- China
- Prior art keywords
- spool
- valve
- tail portion
- hole
- spring base
- 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.)
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Links
- 239000007921 spray Substances 0.000 title claims abstract description 17
- 238000007789 sealing Methods 0.000 claims abstract description 11
- 230000003068 static effect Effects 0.000 claims description 12
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 14
- 230000000694 effects Effects 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Magnetically Actuated Valves (AREA)
Abstract
The utility model discloses a kind of double containment gas spray valves, including：The front valve shell and rear valve body being fixed together, the front valve shell offer air inlet and gas outlet, valve seat and spool mounting hole are provided in the front valve shell；The extending direction of the deflector hole of spool deviates the center of the spool, and the air-flow flowed through from the deflector hole is made to generate rotary force to the spool；The tail portion of the spool abuts against the return spring by spring base, and the tail portion of the spool abuts against the return spring by spring base, and the tail portion of the spring base and the spool is rotatably assorted.Frictional force between spring base and spool described in the utility model tail portion is very small, and when air-flow is flowed through from the deflector hole, air-flow is slowly rotated and taken a seat to the rotary force band movable valve plug that spool generates, to improve the sealing performance of spool and valve seat.
Description
Technical field
It is opened and closed the utility model is related to gas spray valve technical field more particularly to a kind of Electromagnetic Control spool
Gas spray valve.
Background technology
Chinese utility model patent CN206754406U discloses a kind of double containment gas spray valve, and flow-guiding channel is opened
It is located on spool, eliminates the valve rod playing the guiding role, the guide part of spool is made to be arranged between two sealing surfaces, it is simple in structure,
Guide effect is good, and solve makes the center of gravity of spool be easy to cause valve not on guide part since valve rod is arranged in one end of spool
The problem of core eccentric wear, reduction seal spool effect.Meanwhile flow-guiding channel is processed on spool than the handling ease on valve body
It is more, in the case where valve body has same external dimensions, the bigger that spool can be done, thus the flow-passing surface of gas can be improved
Product, and reduce manufacturing cost.
But above-mentioned technical proposal has the following problems：Spool moves reciprocatingly relative to valve body along valve core axis direction,
It was verified that in order to ensure the sealing effect of spool and the valve body conical surface, it is desirable to spool does slow rotary motion around its axis,
Since the spool end and return spring end-face friction of above-mentioned patent are too big, cause spool that cannot rotate, influences sealing effect,
To influence the service life of valve.
Utility model content
The above deficiency for the above-mentioned prior art, the utility model provide a kind of double containment gas spray valve, to improve
The sealing performance of spool and valve seat.
In order to solve the above technical problems, the double containment gas spray valve of the utility model, including：It is fixed together
Front valve shell and rear valve body, the front valve shell offer air inlet and gas outlet, and valve seat and spool peace are provided in the front valve shell
Fill hole；Spool, the spool are slidably matched with the spool mounting hole, and the spool is matched with the valve seat realizes the spray
Penetrate being turned on and off for valve；The air inlet is connected to the body cavity positioned at the spool side；The peripheral surface of the spool
Be arranged there are two annular flange part, the flange part have sealing surface compatible with the valve seat, two of the spool
Part formation annular chamber corresponding with the inner surface of the front valve shell between flange part, the annular chamber connect with the gas outlet
Logical, the part between two flange parts of the spool is provided with guide part, and the guide part is opposite with the spool mounting hole
It answers, the guide part of the spool offers diversion trench, and the valve core inside, which offers, to be connected in the front valve shell of the spool both sides
The flow-guiding channel of chamber；The flow-guiding channel include be opened in the spool axial pass-through holes and by the axial pass-through holes with
The deflector hole of the peripheral surface connection of the spool；Moving armature, static gag bit and electromagnetic coil, the moving armature are fixed on the spool
Tail portion, the static gag bit is fixed on the rear valve body, and the electromagnetic coil is around the periphery of the static gag bit, the quiet rank
Sheathed spring sleeve in the endoporus of iron is provided with return spring in the spring spool；The extending direction of the deflector hole deviates
The center of the spool makes the air-flow flowed through from the deflector hole generate rotary force to the spool；The tail portion of the spool is logical
It crosses spring base and abuts against the return spring, the tail portion of the spring base and the spool is rotatably assorted.
Preferably, the tail portion of the spring base and the spool is rotatably assorted by concaveconvex structure.
Preferably, the tail portion of the spool offers recessed supported hole, and the spring base is provided with convex supporting surface, institute
Supporting surface is stated to be engaged with the supported hole line.
Preferably, the supported hole is internal taper hole, and the supporting surface is spherical surface.
Preferably, the deflector hole with it is tangent for the circle of radius to be sized by the center of circle of the center of the spool.
Preferably, the deflector hole is opened in the flange part close to the spool tail portion.
After adopting the above technical scheme, the utility model has the technical effect that, the spring base is matched with the rotation of spool tail portion
It closes, the frictional force between both is very small, when air-flow is flowed through from the deflector hole, rotary force band that air-flow generates spool
Movable valve plug is slowly rotated and is taken a seat, to improve the sealing performance of spool and valve seat.
Description of the drawings
Fig. 1 is the structure sectional view of the utility model embodiment；
Fig. 2 is the longitudinal sectional view of spool in Fig. 1；
Fig. 3 is A-A sectional views in Fig. 2；
In figure, 100- front valve shells, 101- air inlets, the gas outlets 102-, 200- spools, 201- flange parts, 202- guide rings,
203- diversion trenches, 204- axial pass-through holes, 205- deflector holes, 206- spools tail portion, 300- rear valve bodies, 401- end caps, 402- electricity
Magnetic coil, 403- moving armatures, 404- magnetism-isolating loops, 405- static gag bits, 501- spring spools, 502- return springs, 503- spring bases,
T- magnetic gaps, R- circles.
Specific implementation mode
The utility model is further illustrated with reference to the accompanying drawings and examples.
As shown in Figure 1, a kind of double containment gas spray valve, front valve shell 100 and rear valve body 300 are fixed together, electricity
The moving armature 403 of magnet is fixed on spool tail portion 206, and static gag bit 405 is fixed on rear valve body 300, is covered in the endoporus of static gag bit 405
If spring spool 501, return spring 502 is provided in spring spool 501.
Rear valve body 300 is connected with end cap 401, is equipped with sealing ring between the two, rear valve body 300 is placed in electromagnetic coil 402
In end cap 401, " in set " be with " side " in contrast.Magnetism-isolating loop 404 is provided in the endoporus of electromagnetic coil 402, every
For magnet ring 404 by being constituted every magnetic metal material, two end faces of magnetism-isolating loop 404 are posted by the side wall and end cap of rear valve body 300 respectively
401 inner side end forms flat seal, in this way, the surrounding of electromagnetic coil 402 is just by rear valve body 300, end cap 401 and magnetism-isolating loop
404 are surrounded, and so that electromagnetic coil 402 and the body cavity of gassy (being also likely to be fuel gas) is isolated entirely from, disappear
In addition to security risk.It is installed for the ease of component, rear valve body 300 is configured to separate structure.When electromagnetic coil 402 " side "
When, electromagnetic coil also need to be around the periphery of static gag bit.
Centre bore of the moving armature 403 through end cap 401 stretches into the endoporus of magnetism-isolating loop 404, static gag bit 405 from the other end stretch into every
The endoporus of magnet ring 404, two end faces are opposite, and centre is the stroke of spool 200 there are magnetic gap t, magnetic gap t.
As shown in Figure 1, front valve shell 100 offers air inlet 101 and gas outlet 102, it is provided with valve seat in front valve shell 100,
Spool mounting hole is offered in valve body 100, spool 200 is slidably matched with spool mounting hole, and spool 200 matches realization with valve seat
Above-mentioned injection valve is turned on and off.Air inlet 101 is connected to the body cavity positioned at 200 side of spool.In order to improve valve body
Wearability, guide sleeve (the present embodiment is not shown) can be provided in the spool mounting hole of valve body 100, correspondingly, spool 200
It should just be slidably matched with guide sleeve.Valve seat is wholely set with front valve shell 100, valve seat and front valve shell 100 can also split settings,
Material manufacture relatively more resistant to abrasive wear may be used in valve seat.
As shown in Fig. 2, the peripheral surface setting of spool 200 is there are two the flange part 201 of annular, flange part 201 has and valve
The compatible sealing surface of seat.Part formation corresponding with the inner surface of valve body 100 between two flange parts 201 of spool 200
Annular chamber, the annular chamber are connected to gas outlet 102.
Part between two flange parts 201 of spool 200 is provided with guide part, the guide part and spool mounting hole phase
Corresponding, the guide part of the spool offers diversion trench 203, the valve body for being connected to the spool both sides is offered inside spool 200
The flow-guiding channel of inner cavity.The guide part of spool includes two spaced guide rings 202, and diversion trench 203 is opened in guide ring
On 202 circumferential surface.The interval of guide ring 202 setting, first, in order to open up the needs of diversion trench, second is that in order to reduce guide part and valve
The contact area of core mounting hole prevents spool 200 from being blocked by abrasive dust.
In the present embodiment, flow-guiding channel includes being opened in the axial pass-through holes 204 of spool 200 and by axial pass-through holes
204 deflector holes 205 being connected to the peripheral surface of spool 200, deflector hole 205 are opened in the flange part 201 close to spool tail portion 206
On.
As shown in figure 3, the extending direction of deflector hole 205 deviates the center of spool 200, make the gas flowed through from deflector hole 205
Stream generates rotary force to spool 200.In the present embodiment, deflector hole 205 with by the center of circle of the center of spool to be sized as half
The circle R of diameter is tangent, is more advantageous to increase rotary force.
As depicted in figs. 1 and 2, spool tail portion 206 abuts against return spring 502 by spring base 503, spring base 503 with
The tail portion 206 of spool is rotatably assorted, it is preferred that spring base 503 and the tail portion 206 of spool are rotatably assorted by concaveconvex structure.Into
One step, spool tail portion 206 offers recessed supported hole, and spring base 503 is provided with convex supporting surface, supporting surface and the support
Hole line is engaged.In the present embodiment, the supported hole is internal taper hole, and the supporting surface is spherical surface.
In conclusion the utility model is mainly reflected in the contribution of the prior art, spring base 503 is increased, spring is made
The structure that is rotatably assorted is formed between seat 503 and spool tail portion 206, the frictional force between both is very small, and on spool 200
Provided with the deflector hole 205 that can generate rotary force by air-flow, when air-flow is flowed through from the deflector hole, air-flow is to spool 200
The rotary force band movable valve plug of generation is slowly rotated and is taken a seat, to improve the sealing performance of spool and valve seat.
The utility model is not limited to the above embodiment, all design, principle, structure and methods based on the utility model
Made various improvement, fall within the scope of protection of the utility model.
Claims (6)
1. a kind of double containment gas spray valve, including：
The front valve shell and rear valve body being fixed together, the front valve shell offer air inlet and gas outlet, the front valve shell
Inside it is provided with valve seat and spool mounting hole；
Spool, the spool are slidably matched with the spool mounting hole, and the spool is matched with the valve seat realizes the spray
Penetrate being turned on and off for valve；The air inlet is connected to the body cavity positioned at the spool side；The peripheral surface of the spool
Be arranged there are two annular flange part, the flange part have sealing surface compatible with the valve seat, two of the spool
Part formation annular chamber corresponding with the inner surface of the front valve shell between flange part, the annular chamber connect with the gas outlet
Logical, the part between two flange parts of the spool is provided with guide part, and the guide part is opposite with the spool mounting hole
It answers, the guide part of the spool offers diversion trench, and the valve core inside, which offers, to be connected in the front valve shell of the spool both sides
The flow-guiding channel of chamber；The flow-guiding channel include be opened in the spool axial pass-through holes and by the axial pass-through holes with
The deflector hole of the peripheral surface connection of the spool；
Moving armature, static gag bit and electromagnetic coil, the moving armature are fixed on the tail portion of the spool, and the static gag bit is fixed on institute
State rear valve body, the electromagnetic coil is around the periphery of the static gag bit, sheathed spring sleeve in the endoporus of the static gag bit, institute
It states and is provided with return spring in spring spool；It is characterized in that,
The extending direction of the deflector hole deviates the center of the spool, makes the air-flow flowed through from the deflector hole to the spool
Generate rotary force；
The tail portion of the spool abuts against the return spring by spring base, and the tail portion of the spring base and the spool rotates
Cooperation.
2. double containment gas spray valve as described in claim 1, which is characterized in that the tail portion of the spring base and the spool
It is rotatably assorted by concaveconvex structure.
3. double containment gas spray valve as claimed in claim 2, which is characterized in that the tail portion of the spool offers recessed branch
Hole is supportted, the spring base is provided with convex supporting surface, and the supporting surface is engaged with the supported hole line.
4. double containment gas spray valve as claimed in claim 3, which is characterized in that the supported hole is internal taper hole, the branch
Support face is spherical surface.
5. double containment gas spray valve as described in claim 1, which is characterized in that the deflector hole with in the spool
The heart is that the center of circle is tangent for the circle of radius to be sized.
6. double containment gas spray valve as described in claim 1, which is characterized in that the deflector hole is opened in close to the valve
The flange part of core tail portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820105385.1U CN207864671U (en) | 2018-01-23 | 2018-01-23 | Double containment gas spray valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820105385.1U CN207864671U (en) | 2018-01-23 | 2018-01-23 | Double containment gas spray valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207864671U true CN207864671U (en) | 2018-09-14 |
Family
ID=63462803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820105385.1U Active CN207864671U (en) | 2018-01-23 | 2018-01-23 | Double containment gas spray valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207864671U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108180293A (en) * | 2018-01-23 | 2018-06-19 | 潍坊力创电子科技有限公司 | Double containment gas spray valve |
-
2018
- 2018-01-23 CN CN201820105385.1U patent/CN207864671U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108180293A (en) * | 2018-01-23 | 2018-06-19 | 潍坊力创电子科技有限公司 | Double containment gas spray valve |
| CN108180293B (en) * | 2018-01-23 | 2024-06-07 | 潍坊力创电子科技有限公司 | Double-sealing gas injection valve |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |