CN213839609U - Air valve structure and sealing device - Google Patents
Air valve structure and sealing device Download PDFInfo
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- CN213839609U CN213839609U CN202022881243.4U CN202022881243U CN213839609U CN 213839609 U CN213839609 U CN 213839609U CN 202022881243 U CN202022881243 U CN 202022881243U CN 213839609 U CN213839609 U CN 213839609U
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- positioning hole
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Abstract
The utility model discloses an air valve structure, which comprises an upper bracket, a lower bracket and a piston; the upper bracket is provided with a first positioning hole which is formed by surrounding a first pipe wall; the lower bracket is provided with a second positioning hole which is formed by the surrounding of a second pipe wall; the lower support is arranged below the upper support, the first positioning hole and the second positioning hole are coaxially arranged, and a clamping groove is formed between the first pipe wall and the second pipe wall at a preset interval; the top of the piston is provided with a clamping head, the middle of the piston is provided with an annular clamping bulge, the piston is arranged in the first positioning hole and the second positioning hole, the clamping head is arranged above the first pipe wall, the clamping bulge is matched in the clamping groove, and the clamping bulge has axial movement allowance along the first positioning hole in the clamping groove; the piston has the clearance between the outer wall of screens arch deviating from screens head one side and the inner wall of second pipe wall. The air valve has the advantages of simple structure, reliable operation, good sealing property under the sealing state, convenience in switching to the pressure relief state and good use convenience.
Description
Technical Field
The utility model relates to the mechanical structure field, concretely relates to air valve structure and sealing device.
Background
When the sealing device needs to keep sealing, the sealing performance of the sealing device needs to be ensured; when the sealing device needs to be opened, the sealing device needs to be opened after pressure relief, so that the opening difficulty of the sealing device is reduced, and therefore, the structure related to pressure relief needs to be switched between a sealing state and an opening state to achieve the required functions of the sealing device.
SUMMERY OF THE UTILITY MODEL
In order to realize pressure release structure's function, the utility model provides an air valve structure and sealing device, this air valve structure retrencies, and the operation is reliable, and the leakproofness is good under the encapsulated situation, and it is convenient to switch into pressure release state, has good convenience in use.
Correspondingly, the utility model provides an air valve structure, which comprises an upper bracket, a lower bracket and a piston;
the upper bracket is provided with a first positioning hole which is formed by surrounding a first pipe wall;
the lower support is provided with a second positioning hole which is formed by the surrounding of a second pipe wall;
the lower support is arranged below the upper support, the first positioning hole and the second positioning hole are coaxially arranged, and a clamping groove is formed between the first pipe wall and the second pipe wall at a preset interval;
the top of the piston is provided with a clamping head, the middle of the piston is provided with an annular clamping bulge, the piston is arranged in a first positioning hole and a second positioning hole, the clamping head is arranged above the first pipe wall, the clamping bulge is matched in the clamping groove, and the clamping bulge has axial movement allowance along the first positioning hole in the clamping groove;
the piston is in the screens arch deviates from have the clearance between the outer wall of screens head one side with the inner wall of second pipe wall.
In an alternative embodiment, the piston is made on the basis of a soft material.
In an alternative embodiment, the outer wall of the piston between the detent head and the detent projection is attached to the inner wall of the first tube wall.
In an alternative embodiment, a counterbore is provided in the bottom surface of the piston.
In an alternative embodiment, the edge of the detent projection protrudes upward and/or downward to form a drop-off prevention edge.
Correspondingly, the utility model provides a sealing device, including arbitrary optional pneumatic valve structure.
The utility model provides an air valve structure and sealing device, this air valve structure retrencies, and the operation is reliable, and the leakproofness is good under the encapsulated situation, and it is convenient to switch into the pressure release state, has good convenience of use.
Drawings
Fig. 1 shows a schematic view of a gas valve structure according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Figure 1 shows the schematic view of the air valve structure of the embodiment of the utility model
The embodiment of the utility model provides an air valve structure, which comprises an upper bracket 10, a lower bracket 30 and a piston 20;
the upper bracket 10 is provided with a first positioning hole surrounded by a first pipe wall;
the lower bracket 30 is provided with a second positioning hole surrounded by a second pipe wall;
the lower bracket 30 is arranged below the upper bracket 10, the first positioning hole and the second positioning hole are coaxially arranged, and a clamping groove is formed between the first pipe wall and the second pipe wall at a preset interval;
the top of the piston 20 is provided with a clamping head 201, the middle of the piston 20 is provided with an annular clamping protrusion 202, the piston 20 is arranged in a first positioning hole and a second positioning hole, the clamping head 201 is arranged above the first pipe wall, the clamping protrusion 202 is matched in the clamping groove, and the clamping protrusion 202 has axial movement allowance along the first positioning hole in the clamping groove;
the piston 20 has a gap between the outer wall of the detent projection 202 on the side facing away from the detent head 201 and the inner wall of the second tube wall.
In specific implementation, the first pipe wall is positioned outside the sealing device, the lower end of a second positioning hole of the second pipe wall is communicated to the inside of the sealing device, and the upper end of a second positioning hole of the second optical ratio is communicated to the outside of the sealing device; the clamping bulge 202 of the piston 20 is matched on the top surface of the second pipe wall by pressing down the piston 20, so that the second positioning hole is sealed; by lifting the piston 20, the clamping protrusion 202 of the piston 20 is separated from the top surface of the second pipe wall, the second positioning hole is communicated with the outside, and the internal and external air pressures of the sealing device are balanced.
Specifically, if the piston is made of a hard material, in order to ensure sealing, the bottom surface of the clamping protrusion 202 and the top surface of the second pipe wall need to ensure certain matching performance and certain processing precision, and the actual processing cost and the processing difficulty are high; thus, alternatively, the piston 20 may be made based on a soft material, such as soft gel.
Correspondingly, because the piston 20 does not generate a function related to air pressure balancing on the upper part of the clamping protrusion, in specific implementation, the outer wall of the piston between the clamping head and the clamping protrusion is attached to the inner wall of the first pipe wall, so that the first pipe wall can guide the movement of the piston in the direction. Specifically, in fig. 1, a gap is formed on the outer wall of the piston between the retaining head and the retaining protrusion.
Further, a counterbore 204 is provided in the bottom surface of the piston 20. The arrangement of the counter bore 204, on the one hand, saves the manufacturing material of the piston, and on the other hand, can make the overall deformation degree of the piston 20 greater when generating the sealing effect, and accordingly, the sealing capability is stronger (the restoring force is stronger).
Further, in order to further prevent the piston from falling into the second tube wall due to excessive air pressure, the edge of the detent protrusion 202 protrudes upward and/or downward to form a falling-off prevention edge 203. The anti-falling edge 203 can be clamped on the first pipe wall and/or the second pipe wall, so that the piston 20 is prevented from falling into the first positioning hole and the second positioning hole.
Correspondingly, the utility model also provides a sealing device, including arbitrary optional pneumatic valve structure. In particular, the lower bracket 30 may be integrally formed on the housing of the sealing device, and the upper bracket 10 is fixed to the housing 10 in a coupling manner.
To sum up, the embodiment of the utility model provides an air valve structure and sealing device, this air valve structure retrencies, and the operation is reliable, and the leakproofness is good under the encapsulated situation, and it is convenient to switch into the pressure release state, has good convenience of use.
The above detailed description is made on the air valve structure and the sealing device provided by the embodiment of the present invention, and the specific examples are applied herein to explain the principle and the implementation of the present invention, and the description of the above embodiments is only used to help understand the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, to sum up, the content of the present specification should not be understood as the limitation of the present invention.
Claims (6)
1. An air valve structure is characterized by comprising an upper bracket, a lower bracket and a piston;
the upper bracket is provided with a first positioning hole which is formed by surrounding a first pipe wall;
the lower support is provided with a second positioning hole which is formed by the surrounding of a second pipe wall;
the lower support is arranged below the upper support, the first positioning hole and the second positioning hole are coaxially arranged, and a clamping groove is formed between the first pipe wall and the second pipe wall at a preset interval;
the top of the piston is provided with a clamping head, the middle of the piston is provided with an annular clamping bulge, the piston is arranged in a first positioning hole and a second positioning hole, the clamping head is arranged above the first pipe wall, the clamping bulge is matched in the clamping groove, and the clamping bulge has axial movement allowance along the first positioning hole in the clamping groove;
the piston is in the screens arch deviates from have the clearance between the outer wall of screens head one side with the inner wall of second pipe wall.
2. The air valve train of claim 1 wherein the piston is made based on a soft material.
3. The air valve train of claim 1 wherein the outer wall of the piston between the retaining head and the retaining projection abuts the inner wall of the first tube wall.
4. The air valve train of claim 1 wherein the bottom surface of the piston is provided with a counterbore.
5. The air valve structure as claimed in claim 1, wherein the edge of the retaining projection is projected upward and/or downward to form a falling-off prevention edge.
6. A sealing device comprising the air valve structure of any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022881243.4U CN213839609U (en) | 2020-12-04 | 2020-12-04 | Air valve structure and sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022881243.4U CN213839609U (en) | 2020-12-04 | 2020-12-04 | Air valve structure and sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213839609U true CN213839609U (en) | 2021-07-30 |
Family
ID=76996083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022881243.4U Active CN213839609U (en) | 2020-12-04 | 2020-12-04 | Air valve structure and sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213839609U (en) |
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2020
- 2020-12-04 CN CN202022881243.4U patent/CN213839609U/en active Active
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Legal Events
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211110 Address after: 312000 East head, floor 2, building 4, zhupu'ao, Kuaiji village, Pingshui Town, Keqiao District, Shaoxing City, Zhejiang Province Patentee after: Zhejiang yuancosmic Electric Appliance Co., Ltd Address before: 310016 room 505-7, building 3, Zhonghao international business center, No. 672, Xintang Road, Jianggan District, Hangzhou City, Zhejiang Province Patentee before: Zhejiang Qianyi Technology Co., Ltd |