CN216975980U - Sealing structure - Google Patents
Sealing structure Download PDFInfo
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- CN216975980U CN216975980U CN202220439307.1U CN202220439307U CN216975980U CN 216975980 U CN216975980 U CN 216975980U CN 202220439307 U CN202220439307 U CN 202220439307U CN 216975980 U CN216975980 U CN 216975980U
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- sealing
- sealing body
- positioning groove
- framework
- positioning
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Abstract
The utility model discloses a sealing structure, which belongs to the technical field of heat treatment equipment and comprises: the valve body is provided with a positioning groove, and a positioning hole is formed in the positioning groove; one end of the valve rod extends into the positioning hole; the sealing seat comprises a framework and a sealing body coated on the framework, the framework is sleeved on the valve rod, one end of the sealing body is tightly attached to the valve rod, and the other end of the sealing body is abutted to the bottom surface of the positioning groove; the spring is sleeved on the sealing body and enables the sealing body to have a tendency of approaching to the direction of the positioning groove; the sealing body can seal the valve body only by covering the outer surface of the framework, so that the manufacturing process of the sealing seat is greatly simplified. The rubber material demand is reduced, the structure is simple, the use is convenient, and the production cost is reduced.
Description
Technical Field
The utility model relates to the technical field of heat treatment equipment, in particular to a sealing structure.
Background
Present seal structure for valve and pneumatic brake, as shown in fig. 1, it is flexible to drive spring 4 through valve rod 2 removal usually, under the effect of spring 4, make seal receptacle 3 closely laminate with valve body 1 and prevent the gas leakage in the valve body 1, the inside and outside surface of the skeleton 31 of seal receptacle 3 all need cover the seal 32 of rubber material, utilize seal 32 on the skeleton 31 internal face to be connected with 1 interference of valve body and realize sealedly, the preparation technology of this type of seal receptacle is very loaded down with trivial details, and the rubber sizing material that needs is also more, great increase manufacturing cost.
Therefore, designing a sealing structure with simple structure, low production cost and better sealing effect is an urgent problem to be solved by sealing seat manufacturers.
SUMMERY OF THE UTILITY MODEL
For the problems in the prior art, the utility model provides the sealing structure, the sealing body only needs to cover the outer surface of the framework to realize the sealing of the valve body, the manufacturing process of the sealing seat is greatly simplified, the demand of rubber sizing materials is reduced, the structure is simple, the use is convenient, and the production cost is reduced.
In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:
the present invention provides a sealing structure, including:
the valve body is provided with a positioning groove, and a positioning hole is formed in the positioning groove;
one end of the valve rod extends into the positioning hole;
the sealing seat comprises a framework and a sealing body coated on the framework, the framework is sleeved on the valve rod, one end of the sealing body is tightly attached to the valve rod, and the other end of the sealing body is abutted to the bottom surface of the positioning groove;
the spring is sleeved on the sealing body, and the sealing body has a tendency of approaching to the direction of the positioning groove.
As a preferred technical scheme, the positioning groove is arranged as an annular groove, a positioning protrusion is arranged in the positioning groove, and the positioning hole is located on the positioning protrusion.
As a preferred technical scheme, the framework is made of a metal material, the sealing body is made of a rubber material, and the sealing body is fixed on the framework in a heat treatment mode.
As a preferred technical scheme, a locking ring is arranged at the position, close to the valve rod, of the sealing body.
As a preferable technical solution, the framework is in a shape of a bell with an open upper end, and the sealing body is wrapped on an outer surface of the framework.
As a preferred technical scheme, a first bulge is arranged at the close joint of the sealing body and the valve rod, and a second bulge is arranged at the butt joint of the sealing body and the positioning groove.
As a preferable technical solution, the first protrusion and the second protrusion have circular arc-shaped cross sections.
The beneficial effects of the utility model are as follows:
the sealing body can seal the valve body only by covering the outer surface of the framework, greatly simplifies the manufacturing process of the sealing seat, reduces the demand of rubber materials, has a simple structure, is convenient to use, and reduces the production cost.
Drawings
FIG. 1 is a schematic view of a prior art seal arrangement;
fig. 2 is a schematic view of the overall structure of a seal structure according to the present invention.
In the figure: 1-valve body, 11-positioning groove, 12-positioning hole, 13-positioning bulge, 2-valve rod, 3-sealing seat, 31-framework, 32-sealing body, 321-first bulge, 322-second bulge, 4-spring and 5-locking ring.
Detailed Description
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
Referring to fig. 2, the present invention provides a sealing structure, including:
the valve comprises a valve body 1, wherein a positioning groove 11 is formed in the valve body 1, and a positioning hole 12 is formed in the positioning groove 11;
one end of the valve rod 2 extends into the positioning hole 12;
the sealing seat 3 comprises a framework 31 and a sealing body 32 coated on the framework 31, the framework 31 is sleeved on the valve rod 2, one end of the sealing body 32 is tightly attached to the valve rod 2, and the other end of the sealing body 32 is abutted against the bottom surface of the positioning groove 11, so that the sealing body 32 seals the valve body 1;
the spring 4, the spring 4 is located on the sealing body 32, and the spring 4 makes the sealing body 32 have the trend that is close to the direction of constant head tank 11, specifically, the other end of spring 4 and valve rod 2 butt (not shown in the figure), and valve rod 2 removes (valve rod 2 usually passes through axial displacement under the effect of cam), can compress tightly seal receptacle 3 through spring 4.
In this embodiment, referring to fig. 2, the positioning groove 11 is an annular groove, a positioning protrusion 13 is disposed in the positioning groove 11, and the positioning hole 12 is located on the positioning protrusion 13.
The frame 31 is preferably made of a metal material, the sealing body 32 is preferably made of a rubber material, and the sealing body 32 is preferably fixed to the frame 31 by heat treatment.
In this embodiment, please refer to fig. 2, a locking ring 5 is disposed at a position of the sealing body 32, where the sealing body 32 is tightly attached to the valve rod 2, and the locking ring 5 can ensure a sealing effect between the sealing body 32 and the valve rod 2.
In the present embodiment, referring to fig. 2, the frame 31 is in a bell shape with an open upper end, and the sealing body 32 covers the outer surface of the frame 31, so as to facilitate the sealing between the sealing body 32 and the valve stem 2 and the sealing seat 3, respectively.
In this embodiment, referring to fig. 2, a first protrusion 321 is disposed at a close joint of the sealing body 32 and the valve rod 2, and the first protrusion 321 can improve a sealing effect between the sealing body 32 and the valve rod 2; the abutting part of the sealing body 32 and the positioning groove 11 is provided with a second bulge 322, and the second bulge 322 can improve the sealing effect between the sealing body 32 and the positioning groove 11; specifically, the cross sections of the first projection 321 and the second projection 322 are preferably circular arc-shaped.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A sealing structure, comprising:
the valve body is provided with a positioning groove, and a positioning hole is formed in the positioning groove;
one end of the valve rod extends into the positioning hole;
the sealing seat comprises a framework and a sealing body coated on the framework, the framework is sleeved on the valve rod, one end of the sealing body is tightly attached to the valve rod, and the other end of the sealing body is abutted to the bottom surface of the positioning groove;
the spring is sleeved on the sealing body, and the sealing body has a tendency of approaching to the direction of the positioning groove.
2. A sealing structure according to claim 1, wherein said positioning groove is provided as an annular groove, a positioning protrusion is provided in said positioning groove, and said positioning hole is located on said positioning protrusion.
3. A sealing structure according to claim 1, wherein said frame is made of a metal material, said sealing body is made of a rubber material, and said sealing body is fixed to said frame by means of heat treatment.
4. A sealing structure according to claim 1, wherein a locking ring is provided on said sealing body at a position where said sealing body is tightly attached to said valve stem.
5. A sealing structure according to claim 1, wherein said frame has a bell shape with an open upper end, and said sealing body is coated on an outer surface of said frame.
6. A sealing structure according to claim 5, wherein a first protrusion is provided at a position where the sealing body is tightly attached to the valve stem, and a second protrusion is provided at a position where the sealing body abuts against the positioning groove.
7. A sealing arrangement according to claim 6, wherein the first and second projections are each arcuate in cross-section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220439307.1U CN216975980U (en) | 2022-03-02 | 2022-03-02 | Sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220439307.1U CN216975980U (en) | 2022-03-02 | 2022-03-02 | Sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216975980U true CN216975980U (en) | 2022-07-15 |
Family
ID=82354936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220439307.1U Active CN216975980U (en) | 2022-03-02 | 2022-03-02 | Sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216975980U (en) |
-
2022
- 2022-03-02 CN CN202220439307.1U patent/CN216975980U/en active Active
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| GR01 | Patent grant | ||
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