CN201875122U - Rubber cup for brake cylinder - Google Patents
Rubber cup for brake cylinder Download PDFInfo
- Publication number
- CN201875122U CN201875122U CN2010206314993U CN201020631499U CN201875122U CN 201875122 U CN201875122 U CN 201875122U CN 2010206314993 U CN2010206314993 U CN 2010206314993U CN 201020631499 U CN201020631499 U CN 201020631499U CN 201875122 U CN201875122 U CN 201875122U
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- Prior art keywords
- rubber cup
- sealing
- utility
- model
- stress
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- Expired - Lifetime
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- Transmission Of Braking Force In Braking Systems (AREA)
Abstract
The utility model discloses a rubber cup for a brake cylinder. An inner lip and an outer lip of the rubber cup are provided with a plurality of convex sealing ribs. In the utility model, the plurality of convex sealing ribs are arranged on the inner lip and the outer lip of the rubber cup, therefore after the rubber cup with the sealing ribs is assembled with the piston of the brake cylinder, the inner diameter of the rubber cup is expanded and generates deformation stress, the deformation stress is exerted on the convex sealing ribs so that secondary deformation occurs, the stress at the parts of the sealing ribs is increased, accordingly, the sealing force is increased, the surface sealing of the Y-shaped rubber cup is changed into line sealing, the needed sealing stress becomes smaller and the sealing property is better.
Description
Technical field
The utility model relates to a kind of sealed member, particularly a kind of railway locomotive, the vehicle rubber cup of band sealed muscle.
Background technique
Rubber cup is the strength member that railway locomotive, vehicle are used master cylinder, and its sealability is the key factor that influences the master cylinder usability.Master cylinder adopted Y type rubber cup in the past, and its sealing surface is regular plane, and sealing area is big, and the Sealing Stress that needs is also very big, so that its sealability is relatively poor.
The model utility content
Goal of the invention of the present utility model is: at the problem of above-mentioned existence, a kind of railway locomotive, the car brakeing cylinder rubber cup of band sealed muscle is provided, this rubber cup makes the face seal of Y type rubber cup become linear sealing, makes the Sealing Stress that needs become littler, and sealability is better.
The technical solution of the utility model is achieved in that a kind of master cylinder leather cup, it is characterized in that: the epipharynx of leather cup is provided with the sealed muscle A of some projectioies, also is provided with the sealed muscle B of projection on the outer lip of described leather cup.
Master cylinder leather cup described in the utility model, the height of its described sealed muscle A projection is 0.3～0.5mm.
Master cylinder leather cup described in the utility model, the radius of its described sealed muscle B are 1～3mm.
The utility model is provided with the sealed muscle of some projectioies by the epipharynx at rubber cup, like this, after the rubber cup of band sealed muscle and the assembling of master cylinder piston, the expansion of leather cup internal diameter produces distortional stress, and this stress makes it that secondary deformation takes place on the sealed muscle of projection, and sealed muscle position stress increases, sealing force is increased, make the face seal of Y type rubber cup become linear sealing, the Sealing Stress that needs becomes littler, and sealability is better; The circular arc of the sealed muscle of rubber cup outer lip then forms concentrated sealing force with the point of contact of master cylinder inboard wall of cylinder block.
Description of drawings
Fig. 1 is a cross-sectional view of the present utility model.
Fig. 2 is the package assembly schematic representation of the utility model and master cylinder cylinder body.
Mark among the figure: 1 is leather cup, and 2 is sealed muscle A, and 3 is sealed muscle B, and 4 is the master cylinder cylinder body, and 5 is piston body.
Embodiment
Below in conjunction with accompanying drawing, the utility model is done detailed explanation.
In order to make the purpose of this utility model, technological scheme and advantage clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
As shown in Figure 1, a kind of master cylinder leather cup, the epipharynx of leather cup 1 are provided with the sealed muscle A2 of two projectioies, and the height of described sealed muscle A2 projection is 0.3～0.5mm; The outer lip of described leather cup 1 is provided with sealed muscle B3, and the radius of arc of described sealed muscle B3 is 1～3mm.
As shown in Figure 2, the epipharynx of rubber cup enters in the leather cup groove of piston body fully, and the circular arc point of contact circumference of the sealed muscle B of rubber cup outer lip contacts with master cylinder cylinder body 4 inwalls; The internal diameter of rubber cup is than the little 2mm～4mm of leather cup groove external diameter that leather cup is installed on the piston body 5, the external diameter of rubber cup is than the big 4mm～5mm of master cylinder cylinder diameter, like this, after rubber cup and piston body 5 assemblings, the expansion of leather cup internal diameter produces distortional stress, this stress makes it that secondary deformation takes place on the sealed muscle A of two projectioies, sealed muscle A position stress increases, sealing force is increased, and make the face seal of Y type rubber cup become linear sealing, the Sealing Stress that needs becomes littler, and sealability is better.
During work, pressurized air produces active force to the epipharynx of rubber cup, and this active force further increases sealed muscle A position stress, and sealing force is further increased.
During work, pressurized air produces active force to the outer lip of rubber cup, the sealed muscle B circular arc point of contact circumference that this force localization acts on the rubber cup outer lip makes it produce deformational stress, makes the sealed muscle B circular arc of rubber cup outer lip and the inwall of master cylinder cylinder body form concentrated sealing force.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (3)
1. master cylinder leather cup, it is characterized in that: the epipharynx of leather cup (1) is provided with the sealed muscle A(2 of some projectioies), on the outer lip of described leather cup (1), also be provided with the sealed muscle B(3 of projection).
2. master cylinder leather cup according to claim 1 is characterized in that: described sealed muscle A(2) Tu Qi height is 0.3～0.5mm.
3. master cylinder leather cup according to claim 1 and 2 is characterized in that: radius described sealed muscle B(3) is 1～3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206314993U CN201875122U (en) | 2010-11-30 | 2010-11-30 | Rubber cup for brake cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206314993U CN201875122U (en) | 2010-11-30 | 2010-11-30 | Rubber cup for brake cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201875122U true CN201875122U (en) | 2011-06-22 |
Family
ID=44163039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206314993U Expired - Lifetime CN201875122U (en) | 2010-11-30 | 2010-11-30 | Rubber cup for brake cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201875122U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104924266A (en) * | 2015-06-18 | 2015-09-23 | 豫北转向***股份有限公司 | Y-shaped leather cup press-fitting tool |
| CN108980355A (en) * | 2017-06-02 | 2018-12-11 | 株式会社万都 | A kind of integrated sealing circle in master cylinder |
-
2010
- 2010-11-30 CN CN2010206314993U patent/CN201875122U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104924266A (en) * | 2015-06-18 | 2015-09-23 | 豫北转向***股份有限公司 | Y-shaped leather cup press-fitting tool |
| CN108980355A (en) * | 2017-06-02 | 2018-12-11 | 株式会社万都 | A kind of integrated sealing circle in master cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Three road 620010 Meishan province Sichuan City Dongpo District of Meishan science and Technology Industrial Park No. 68 Patentee after: Meisha Zhongke Brake Technology Co., Ltd. Address before: Three road 620010 Meishan province Sichuan City Dongpo District of Meishan science and Technology Industrial Park No. 68 Patentee before: Sichuan Brake Science and Technology Co. Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20110622 |
|
| CX01 | Expiry of patent term |