CN204113977U - A kind of diaphragm brake chamber - Google Patents
A kind of diaphragm brake chamber Download PDFInfo
- Publication number
- CN204113977U CN204113977U CN201420512173.7U CN201420512173U CN204113977U CN 204113977 U CN204113977 U CN 204113977U CN 201420512173 U CN201420512173 U CN 201420512173U CN 204113977 U CN204113977 U CN 204113977U
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- CN
- China
- Prior art keywords
- epithelium
- upper cover
- housing
- edge
- diaphragm
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of diaphragm brake chamber, comprise upper cover (1), epithelium (2), housing (3) and clip (4), the edge of upper cover (1) and the edge of housing (3), be clipped in the middle the edge of epithelium (2); Epithelium (2) is provided with annular projection towards the one side of upper cover (1); Upper cover (1) is provided with the groove matched with it.Adopt technique scheme, elastomer diaphragm steadily, evenly medially can be placed in and cover, and housing steadily, be evenly medially placed on elastomer diaphragm, can not offset; Clip, when assembling is tightened up, because of the increasing of tightening force, and can not make a certain component deflection in upper cover, epithelium, housing, therefore this structure overcomes part skew defect not placed in the middle, improve sealability, eliminate potential faults, thus improve stability and the reliability of product.
Description
Technical field
The utility model belongs to the technical field of automobile and braking system of engineering machinery.Specifically, the utility model relates to a kind of diaphragm brake chamber.
Background technique
At present, what light-duty on market, medium-sized, heavy, agricultural automobile and the braking of braking system of engineering machinery middle rolling car generally adopted is diaphragm braking pattern.And the structural principle of this series products is: when run in vehicle travel process turn slow down, bad road conditions and urgent dangerous situation time, driver steps on brake petal, the pressurized air that main valve exports enters air chamber, promoting diaphragm makes push rod release, produce mechanical thrust, promote break, make automobile produce braking moment, thus car deceleration or stopping.
As depicted in figs. 1 and 2, diaphragm brake chamber of the prior art, comprises upper cover 1, epithelium 2, housing 3 and clip 4, and this structure is without center configuration, and after clip 4 tightens up, elastomer diaphragm 2 can produce slippage, eccentric phenomena.
In an assembling process or use after a period of time, generally there is following several fault in this series products:
1, elastomer diaphragm is placed in the middle in the middle of shell and lid, and after clip tightens up, locally leak air phenomenon;
2, because elastomer diaphragm is not placed in the middle in the middle of shell and lid, though temporarily air tight, after using a period of time, not etc., local does not affect by anticyclonic elastomer diaphragm periphery bowl-type stretch measure, upholds overlength, produce limiting fatigue and ftracture, in the course of time leak air, have a strong impact on car brakeing, occur traffic accident.
Model utility content
The utility model provides a kind of diaphragm brake chamber, its objective is the sealability of high product.
To achieve these goals, the technological scheme that the utility model is taked is:
Diaphragm brake chamber of the present utility model, comprises upper cover, epithelium, housing and clip, and the edge of described upper cover and the edge of housing, be clipped in the middle the edge of epithelium, and described epithelium is provided with annular projection towards the one side of upper cover; The groove matched with it is covered with on described.
Described projection is located at the position near epithelium outer rim, and the dead in line of its center of circle and described epithelium.
Described epithelium edge, is provided with towards the bending of housing; The edge of described housing matches with the indent of described bending.
The utility model adopts technique scheme, and elastomer diaphragm steadily, evenly medially can be placed in and cover, and housing steadily, be evenly medially placed on elastomer diaphragm, can not offset; Clip, when assembling is tightened up, because of the increasing of tightening force, and can not make a certain component deflection in upper cover, epithelium, housing, therefore this structure overcomes part skew defect not placed in the middle, improve sealability, eliminate potential faults, thus improve stability and the reliability of product.
Accompanying drawing explanation
Below the content expressed by each width accompanying drawing of this specification and the mark in figure are briefly described:
Fig. 1 is the structural representation of prior art;
The schematic diagram that the A place that Fig. 2 is structure shown in Fig. 1 amplifies;
Fig. 3 is structural representation of the present utility model;
The schematic diagram that the B place that Fig. 4 is structure shown in Fig. 3 amplifies.
Be labeled as in figure:
1, upper cover, 2, epithelium, 3, housing, 4, clip.
Embodiment
Contrast accompanying drawing below, by the description to embodiment, embodiment of the present utility model is described in further detail, have more complete, accurate and deep understanding to help those skilled in the art to inventive concept of the present utility model, technological scheme.
Structure of the present utility model expressed by Fig. 3, Fig. 4, for the novel anti-offset diaphragm brake chamber of one, relate to all kinds automobile and engineering machinery braking member field, brake chamber comprises upper cover 1, epithelium 2, housing 3 and clip 4, the edge of described upper cover 1 and the edge of housing 3, be clipped in the middle the edge of epithelium 2.
Annexation: brake chamber suction port is connected with relay valve, push rod fork is connected with the brake arm of break.Working principle: after air inlet, promotes push rod assembly by air pressure and travels forward, produce braking force, brake shoe is opened, thus realizes wheel braking.
In order to solve prior art Problems existing and overcome its defect, realize the goal of the invention of the sealability of high product, the technological scheme that the utility model is taked is:
As shown in Figure 3, Figure 4, diaphragm brake chamber of the present utility model, described epithelium 2 is provided with annular projection towards the one side of upper cover 1; Described upper cover 1 is provided with the groove matched with it.The surface design of fitting by upper cover 1 and epithelium 2 becomes an annular inner groovy form; Epithelium 2 is designed to the projection matched with the inner groovy of upper cover 1; Clamp after protruding and groove assembles.
Described projection is located at the position near epithelium 2 outer rim, and the dead in line of its center of circle and described epithelium 2.The inner side surface that upper cover 1 contacts with epithelium 2 is designed to fixing diameter seam placed in the middle, radial-play when assembling to prevent epithelium 2.
Described epithelium 2 edge, is provided with towards the bending of housing 3; The edge of described housing 3 matches with the indent of described bending.Namely the cylindrical of housing 3 matches with the seam of epithelium 2.The lateral layout that epithelium 2 contacts with housing 3 becomes with fixing diameter seam placed in the middle, radial-play when assembling to prevent housing 3.
Elastomer diaphragm energy even be placed on upper cover 1, can not skew be produced, keep placed in the middle; Housing 3 even be placed on elastomer diaphragm, can not skew be produced, keep placed in the middle; Clip 4, when assembling is tightened up, will because of the increasing of tightening force, and make a certain parts in upper cover 1, epithelium 2, housing 3 produce skew.Solve part skew problem not placed in the middle, make clip tighten up rear sealability reliable.
By reference to the accompanying drawings the utility model is exemplarily described above; obvious the utility model specific implementation is not subject to the restrictions described above; as long as have employed the improvement of the various unsubstantialities that method of the present utility model is conceived and technological scheme is carried out; or design of the present utility model and technological scheme directly applied to other occasion, all within protection domain of the present utility model without to improve.
Claims (3)
1. a diaphragm brake chamber, comprise upper cover (1), epithelium (2), housing (3) and clip (4), the edge of described upper cover (1) and the edge of housing (3), the edge of epithelium (2) is clipped in the middle, it is characterized in that: described epithelium (2) is provided with annular projection towards the one side of upper cover (1); Described upper cover (1) is provided with the groove matched with it.
2. according to diaphragm brake chamber according to claim 1, it is characterized in that: described projection is located at the position near epithelium (2) outer rim, and the dead in line of its center of circle and described epithelium (2).
3. according to diaphragm brake chamber according to claim 1, it is characterized in that: described epithelium (2) edge, is provided with towards the bending of housing (3); The edge of described housing (3) matches with the indent of described bending.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420512173.7U CN204113977U (en) | 2014-09-05 | 2014-09-05 | A kind of diaphragm brake chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420512173.7U CN204113977U (en) | 2014-09-05 | 2014-09-05 | A kind of diaphragm brake chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204113977U true CN204113977U (en) | 2015-01-21 |
Family
ID=52331290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420512173.7U Expired - Fee Related CN204113977U (en) | 2014-09-05 | 2014-09-05 | A kind of diaphragm brake chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204113977U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154150A (en) * | 2014-09-05 | 2014-11-19 | 芜湖盛力科技股份有限公司 | Diaphragm type brake chamber |
| CN105179534A (en) * | 2015-10-21 | 2015-12-23 | 上海拜克橡胶件有限公司 | Brake air chamber rubber diaphragm |
-
2014
- 2014-09-05 CN CN201420512173.7U patent/CN204113977U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154150A (en) * | 2014-09-05 | 2014-11-19 | 芜湖盛力科技股份有限公司 | Diaphragm type brake chamber |
| CN105179534A (en) * | 2015-10-21 | 2015-12-23 | 上海拜克橡胶件有限公司 | Brake air chamber rubber diaphragm |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150121 Termination date: 20160905 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |