CN207433513U - A kind of air valve structure - Google Patents
A kind of air valve structure Download PDFInfo
- Publication number
- CN207433513U CN207433513U CN201721571249.3U CN201721571249U CN207433513U CN 207433513 U CN207433513 U CN 207433513U CN 201721571249 U CN201721571249 U CN 201721571249U CN 207433513 U CN207433513 U CN 207433513U
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- CN
- China
- Prior art keywords
- spool
- sealing ring
- accommodating chamber
- clamp nut
- annular groove
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Abstract
The utility model discloses a kind of air valve structure, including valve body, valve body has an accommodating chamber, spool is equipped in accommodating chamber, the upper end of accommodating chamber is equipped with clamp nut, clamp nut is set in the surrounding of spool, the bottom of spool is equipped with axial groove, compression spring is equipped in axial groove, clamp nut is extended downward into close to the position of spool lower end, outer circumferential surface of the spool at the top of it is equipped with first annular slot, the first sealing ring is equipped in first annular slot, outer circumferential surface of the spool in the middle part of it is equipped with the second annular groove, the second sealing ring is equipped in second annular groove, inner wall of the accommodating chamber close to spool bottom is equipped with the 3rd annular groove, the 3rd sealing ring is equipped in 3rd annular groove.Sealing ring only needs to be assemblied in annular groove in the utility model, need not be bonded, and not only assembly technology is simple, but also energy lift-off seal effect and braking effect, and then promotes the service life of air valve structure entirety and promote the reliability of product.
Description
Technical field
The utility model is related to locomotive brake installation air bleeding valve technical field more particularly to a kind of air valve structures.
Background technology
Air valve belongs to motorcycle safety control operating element.Its main function be locomotive need brake when Quick air-discharge and
Make locomotive fast braking, ensure the safety of entire locomotive system, so as to ensure the safe operation of locomotive.
Chinese utility model patent CN203876746U discloses a kind of air valve structure, which is using clamp nut
It is pressed on the upper end of spool, the sealing element needs on spool are connected to by way of bonding on spool, and spool is in the mistake of movement
Cheng Zhong, sealing ring are easily deviate from or shift, and not only assembly technology is complicated, but also can influence sealing effect and braking effect
Fruit can also influence the service life of air valve.In addition, clamp nut axial dimension is shorter, it is therefore desirable to clamp nut and spool it
Between there is higher concentricity could realize spool is fixed, accuracy of manufacture requirement is high, and difficulty of processing is big.It is in addition, existing
Some air valve structures are high to the Geometrical Tolerance Principle for requiring each part, and difficulty of processing is big, product qualification rate is low, high failure rate.
Based on the above problem, thus this case generates.
Utility model content
The purpose of this utility model is to provide a kind of assembly technology is simple, the reliable air valve structure of structure.
In order to solve the above technical problems, the utility model provides following technical scheme：
A kind of air valve structure, including valve body, valve body has an accommodating chamber, and spool, the upper end of accommodating chamber are equipped in accommodating chamber
Equipped with for sealing the clamp nut of accommodating chamber, clamp nut is set in the surrounding of spool and for compressing spool, the bottom of spool
Portion is equipped with axial groove, compression spring is equipped in axial groove, the both ends for compressing spring are connected to top and the receiving of axial groove
The bottom of chamber, the clamp nut are extended downward into close to the position of spool lower end, and outer circumferential surface of the spool at the top of it is equipped with
First annular slot, first annular slot is interior to be equipped with the first sealing ring, and outer circumferential surface of the spool in the middle part of it is equipped with the second annular groove, the
The second sealing ring is equipped in second ring slot, the neighboring of first, second sealing ring is sticked on the inner wall of clamp nut, is accommodated
Inner wall of the chamber close to spool bottom is equipped with the 3rd annular groove, and the 3rd sealing ring is equipped in the 3rd annular groove, the 3rd sealing ring
Inner periphery is sticked on the outer circumferential surface of spool.
Further, the body top is located at the one side of the clamp nut and is equipped with support base, opposite on support base to set
There are two installing plate, a compression bar is articulated between two installing plates, the spool upwardly extends and passes through clamp nut, spool
Upper end is equipped with a sphere, and one end of the compression bar is pressed on sphere.
Further, the cross section of second sealing ring for circle, described first and the 3rd sealing ring cross section be Y
Shape.
Further, the bottom of the accommodating chamber is equipped with through hole, and filtering plug is equipped in through hole.
Sealing element (sealing ring) in the utility model on spool only needs to be assemblied in annular groove, need not be glued
It connecing, spool is during movement, and sealing ring will not be deviate from or shift from annular groove, and not only assembly technology is simple,
And can lift-off seal effect and braking effect, and then promoted air valve structure entirety service life and promotion product it is reliable
Property.
Clamp nut axial dimension is longer in the utility model, due to the length that coordinates between clamp nut and spool compared with
It is long, without having higher concentricity between clamp nut and spool, it can also realize and spool is fixed, so
It is relatively low to clamp nut and the requirement of the spool accuracy of manufacture, and then difficult processing and assembly difficulty are reduced, improve the reliability of product, drop
Less trouble.Since clamp nut is convenient and reliable with closing with spool, so as to reduce the Geometrical Tolerance Principle of valve body.
Accommodating chamber upper end is locked using clamp nut in the utility model, clamp nut by being set in the surrounding of spool,
So as to form radial seal structure, and then valve core movement need to only overcome the frictional force of sealing ring, compared with end face seal mode, need
The operating force and the reset force of compression spring wanted are small, and action is more reliable.
Description of the drawings
Fig. 1 is a kind of overall structure figure of air valve structure；
Fig. 2 is a kind of sectional view of air valve structure.
Specific embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model part of the embodiment, instead of all the embodiments.
In the description of the technical program, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", "front", "rear",
The orientation or position relationship of the instructions such as "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer " is based on attached drawing institutes
The orientation or position relationship shown is for only for ease of description the utility model and simplifies description rather than instruction or imply signified
Device or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that this practicality
The limitation of novel protected scope, the utility model is described in further detail below in conjunction with the accompanying drawings.
A kind of air valve structure, as depicted in figs. 1 and 2, including valve body 11, valve body 11 has an accommodating chamber 12, accommodating chamber 12
Interior to be equipped with spool 13, the upper end of accommodating chamber 12 is equipped with to seal the clamp nut 14 of accommodating chamber, and clamp nut 14 is set in valve
The surrounding of core 13 simultaneously is used to compress spool 13, and the bottom of spool 13 is equipped with axial groove 131, compression spring is equipped in axial groove 131
15, the both ends of compression spring 15 are connected to the top of axial groove 131 and the bottom of accommodating chamber 12, the clamp nut 14 to
Under extend close to the position of 13 lower end of spool, outer circumferential surface of the spool 13 at the top of it is equipped with first annular slot, first annular
The first sealing ring 19 is equipped in slot, outer circumferential surface of the spool 13 in the middle part of it is equipped with the second annular groove, is equipped in the second annular groove
Second sealing ring 21, the neighboring of first, second sealing ring are sticked on the inner wall of clamp nut 14, and accommodating chamber 12 is close to valve
The inner wall of 13 bottom of core is equipped with the 3rd annular groove, is equipped with the 3rd sealing ring 22 in the 3rd annular groove, the 3rd sealing ring 22 it is interior
Circumferential edges are sticked on the outer circumferential surface of spool 13.
Sealing element (sealing ring) in the present embodiment on spool only needs to be assemblied in annular groove, need not be bonded,
Spool is during movement, and sealing ring will not be deviate from or shift from annular groove, and not only assembly technology is simple, but also
Energy lift-off seal effect and braking effect, and then promote the service life of air valve structure entirety and promote the reliability of product.
Clamp nut axial dimension is longer in the present embodiment, since the length coordinated between clamp nut and spool is longer,
It is so right without, with higher concentricity, can also realize and spool is fixed between clamp nut and spool
Clamp nut and the requirement of the spool accuracy of manufacture are relatively low, and then reduce difficult processing and assembly difficulty, improve the reliability of product, reduce
Failure rate.Since clamp nut is convenient and reliable with closing with spool, so as to reduce the Geometrical Tolerance Principle of valve body.
Accommodating chamber upper end is locked using clamp nut in the present embodiment, clamp nut by being set in the surrounding of spool, from
And form radial seal structure, and then valve core movement need to only overcome the frictional force of sealing ring, compared with end face seal mode, it is necessary to
Operating force and compress spring reset force it is small, action it is more reliable.
On the basis of above-described embodiment, it is preferred that as depicted in figs. 1 and 2,11 top of valve body is located at the compression
The one side of nut 14 is equipped with support base 23, opposite on support base 23 to set there are two installing plate 24, is pivotally connected between two installing plates 24
There is a compression bar 25, the spool 13 upwardly extends and through clamp nut 14, and the upper end of spool 13 is equipped with a sphere 26, the pressure
One end of bar 25 is pressed on sphere 26.
On the basis of above-described embodiment, it is preferred that as depicted in figs. 1 and 2, the cross section of second sealing ring 21 is
Circle, described first and the 3rd sealing ring cross section be Y shape.
On the basis of above-described embodiment, it is preferred that as depicted in figs. 1 and 2, the bottom of the accommodating chamber 12, which is equipped with, to be led to
Hole, through hole is interior to be equipped with filtering plug 31.
Various embodiments above is only to illustrate the technical solution of the utility model, but the utility model is not limited to this reality
Mode is applied, in the knowledge possessed in person of ordinary skill in the field, is not departing from the utility model aims
Under the premise of, it can also make a variety of changes.Person of ordinary skill in the field is from above-mentioned design, without creativeness
Work, made a variety of conversion are all fallen in the scope of protection of the utility model.
Claims (4)
1. a kind of air valve structure, including valve body, valve body has an accommodating chamber, is equipped with spool in accommodating chamber, the upper end of accommodating chamber is set
The clamp nut of sealing accommodating chamber is useful for, clamp nut is set in the surrounding of spool and for compressing spool, the bottom of spool
Equipped with axial groove, compression spring is equipped in axial groove, the both ends for compressing spring are connected to top and the accommodating chamber of axial groove
Bottom, which is characterized in that the clamp nut extends downward into the position close to spool lower end, and spool is outer at the top of it
Circumferential surface is equipped with first annular slot, and the first sealing ring is equipped in first annular slot, and outer circumferential surface of the spool in the middle part of it is equipped with second
Annular groove, the second annular groove is interior to be equipped with the second sealing ring, and the neighboring of first, second sealing ring sticks on the interior of clamp nut
On wall, inner wall of the accommodating chamber close to spool bottom is equipped with the 3rd annular groove, is equipped with the 3rd sealing ring in the 3rd annular groove, and the 3rd
The inner periphery of sealing ring is sticked on the outer circumferential surface of spool.
2. a kind of air valve structure according to claim 1, which is characterized in that the body top is located at the clamp nut
One side be equipped with support base, it is opposite on support base to set there are two installing plate, be articulated with a compression bar, the valve between two installing plates
Core upwardly extends and passes through clamp nut, and the upper end of spool is equipped with a sphere, and one end of the compression bar is pressed on sphere.
3. a kind of air valve structure according to claim 1, which is characterized in that the cross section of second sealing ring is circle
Shape, described first and the 3rd sealing ring cross section be Y shape.
4. a kind of air valve structure according to claim 1, which is characterized in that the bottom of the accommodating chamber is equipped with through hole, leads to
Filtering plug is equipped in hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721571249.3U CN207433513U (en) | 2017-11-22 | 2017-11-22 | A kind of air valve structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721571249.3U CN207433513U (en) | 2017-11-22 | 2017-11-22 | A kind of air valve structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207433513U true CN207433513U (en) | 2018-06-01 |
Family
ID=62287291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721571249.3U Active CN207433513U (en) | 2017-11-22 | 2017-11-22 | A kind of air valve structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207433513U (en) |
-
2017
- 2017-11-22 CN CN201721571249.3U patent/CN207433513U/en active Active
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| GR01 | Patent grant |