CN202946675U - Dust-proof mat in interlayer cavity structure - Google Patents
Dust-proof mat in interlayer cavity structure Download PDFInfo
- Publication number
- CN202946675U CN202946675U CN 201220639570 CN201220639570U CN202946675U CN 202946675 U CN202946675 U CN 202946675U CN 201220639570 CN201220639570 CN 201220639570 CN 201220639570 U CN201220639570 U CN 201220639570U CN 202946675 U CN202946675 U CN 202946675U
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- China
- Prior art keywords
- interlayer cavity
- dust
- proof mat
- cavity structure
- interlayer
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- 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 dust-proof mat in an interlayer cavity structure. The dust-proof mat in the interlayer cavity structure comprises a body, wherein the body is in an annulus shape, an interlayer cavity is arranged in the cross section of the body, the lower surface of the interlayer cavity is a planar surface, the upper surface is an arc-shaped surface, an annulus arc-shaped protrusion is arranged on the upper surface of the body corresponding to the arc-shaped surface, and the interlayer cavity is a sealed space. The lower surface of the body is a planar surface. The maximum height of the interlayer cavity is larger than half of the thickness of the body. The distance between the interlayer cavity and the surface of the body is at least 5 millimeters. Due to the design of the interlayer cavity, the dust-proof mat in the interlayer structure has the advantages of being capable of achieving elastic sealing of the cavity, enabling elasticity of the dust-proof mat to be better and still achieving good sealing performance under the condition that the surface of the dust-proof mat is abraded.
Description
Technical field
The utility model relates to a kind of interlayer cavity structure dust-proof cushion, is applied on the main shaft of tunnel excavator.
Background technique
The working environment of tunnel excavator is complicated, so often can enter dust or particle in the main shaft of tunnel excavator, easily causes spindle abrasion serious.Dust-proof cushion commonly used is a simple pad, adopts the flexible material manufacturing, and because working environment is complicated, after using a period of time, flexible material can dust stratification, aging, distortion etc., causes and can't play dustproof effect.
The model utility content
In order to prevent that dust and particle from entering in the main shaft of tunnel excavator, the utility model provides a kind of interlayer cavity structure dust-proof cushion.
The purpose of this utility model is come specific implementation by the following technical programs:
Interlayer cavity structure dust-proof cushion, comprise body, described body is ring, be provided with interlayer cavity on the cross section of body, the lower surface of described interlayer cavity is the plane, upper surface is arc shaped surface, and corresponding described arc shaped surface is made as the arc convex of ring at the upper surface of body, and described interlayer cavity is confined space.
The lower surface of described body is made as the plane.
The maximum height of described interlayer cavity is greater than half of body thickness.
Described interlayer cavity is at least 5mm apart from the distance of body surface.
Through the interlayer cavity structure dust-proof cushion of above-mentioned design, by the design of interlayer cavity, can realize the cavity elastic packing, make the elasticity of dust-proof cushion better, in the situation that the dust-proof cushion surface is worn still and can realizes good sealing.
Description of drawings
The below is described in further detail the utility model according to drawings and embodiments.
Fig. 1 is the structural drawing of the described interlayer cavity structure of the utility model embodiment dust-proof cushion.
Embodiment
As shown in Figure 1, the described interlayer cavity structure of the utility model embodiment dust-proof cushion, comprise body 1, described body 1 is ring, be provided with interlayer cavity 2 on the cross section of body 1, the lower surface of described interlayer cavity 2 is the plane, and upper surface is arc shaped surface, and corresponding described arc shaped surface is made as the arc convex 3 of ring at the upper surface of body 1, described interlayer cavity is confined space.
The lower surface of described body 1 is made as the plane.
The maximum height of described interlayer cavity 2 is greater than half of body thickness.
Described interlayer cavity 2 is at least 5mm apart from the distance on body 1 surface, and namely on the inwall of described interlayer cavity 2, any point is at least 5mm apart from the perpendicular distance of body surface.
Through the interlayer cavity structure dust-proof cushion of above-mentioned design, by the design of interlayer cavity, can realize the cavity elastic packing, make the elasticity of dust-proof cushion better, in the situation that the dust-proof cushion surface is worn still and can realizes good sealing.
Claims (4)
1. interlayer cavity structure dust-proof cushion, comprise body, described body is ring, it is characterized in that, be provided with interlayer cavity on the cross section of body, the lower surface of described interlayer cavity is the plane, and upper surface is arc shaped surface, and corresponding described arc shaped surface is made as the arc convex of ring at the upper surface of body, and described interlayer cavity is confined space.
2. interlayer cavity structure dust-proof cushion as claimed in claim 1, is characterized in that, the lower surface of described body is made as the plane.
3. interlayer cavity structure dust-proof cushion as claimed in claim 1, is characterized in that, the maximum height of described interlayer cavity is greater than half of body thickness.
4. interlayer cavity structure dust-proof cushion as claimed in claim 1, is characterized in that, described interlayer cavity is at least 5mm apart from the distance of body surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220639570 CN202946675U (en) | 2012-11-28 | 2012-11-28 | Dust-proof mat in interlayer cavity structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220639570 CN202946675U (en) | 2012-11-28 | 2012-11-28 | Dust-proof mat in interlayer cavity structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202946675U true CN202946675U (en) | 2013-05-22 |
Family
ID=48422377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220639570 Expired - Fee Related CN202946675U (en) | 2012-11-28 | 2012-11-28 | Dust-proof mat in interlayer cavity structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202946675U (en) |
-
2012
- 2012-11-28 CN CN 201220639570 patent/CN202946675U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130522 Termination date: 20131128 |