CN201520290U - Brake wheel cylinder assembly - Google Patents
Brake wheel cylinder assembly Download PDFInfo
- Publication number
- CN201520290U CN201520290U CN200920188255XU CN200920188255U CN201520290U CN 201520290 U CN201520290 U CN 201520290U CN 200920188255X U CN200920188255X U CN 200920188255XU CN 200920188255 U CN200920188255 U CN 200920188255U CN 201520290 U CN201520290 U CN 201520290U
- Authority
- CN
- China
- Prior art keywords
- cylinder body
- brake wheel
- dust
- oil seal
- wheel cylinder
- 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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- Braking Arrangements (AREA)
Abstract
The utility model discloses a brake wheel cylinder assembly which comprises a cylinder body, wherein pistons are arranged on two ends of the cylinder body, an oil seal chamber is formed between the two pistons in the cylinder body, an oil seal spring and leather cups arranged on two ends of the oil seal spring are arranged in the oil seal chamber, the leather cups are contacted with a piston board, two ends of the cylinder body are further provided with dust shields, the inner walls on two ends of the cylinder body are provided with cover grooves, and the dust shields with a metal framework are placed in the cover groove. The brake wheel cylinder assembly places the dust shields with the metal framework in the cover grooves through arranging the cover grooves on the inner walls on two ends of the cylinder body, leads the dust shields to be arranged in the cylinder body of the brake wheel cylinder, leads the dust shields and the cylinder body to have interference fit, and the dust shields can be effectively prevented from dropping during the moving process of the piston, and impurities as dust, oil dirt and the like can be effectively prevented from entering the cylinder body.
Description
Technical field
The utility model relates to a kind of brake wheel cylinder.
Background technology
Brake wheel cylinder is positioned at drg, and it changes into the brake fluid pressure from master brake cylinder and promotes the thrust that slipper compresses brake wheel.Brake wheel cylinder is divided into twin-tub and single cylinder, and every of twin-tub has a piston; Single cylinder has only one piston is arranged, the other end sealing.In the brake wheel cylinder of twin-tub, form the oil sealing chamber on the cylinder body between the two-piston, the indoor leather cup that has oil seal spring and be positioned at the oil seal spring two ends of oil sealing, spring makes leather cup and piston plate closed contact, helps to prevent air admission.Most wheel cylinder assemblies have oil inlet and relief port, and oil inlet and oil inlet link, and feed hydraulic oil; Have air bleed screw on the relief port, be used for the air of the system of emitting, the dust protecting cap that is installed in the cylinder body two ends can prevent that dust, greasy dirt etc. from entering in the cylinder body.And dust protecting cap on the market all is external dust protecting cap, is about to dust protecting cap and is enclosed within on the outer wall at cylinder body two ends, and so external dust protecting cap comes off in the process of piston motion easily, can not play effectively dustproof, the effect of anti-greasy dirt.
The utility model content
The purpose of this utility model provides a kind of brake wheel cylinder assembly, makes the dust boot difficult drop-off, and prevents entering of dust and greasy dirt effectively.
In order to solve technical matters recited above, the utility model is taked following technical scheme:
The utility model provides a kind of brake wheel cylinder assembly, include cylinder body, two ends at cylinder body have piston, form the oil sealing chamber in the cylinder body between the two-piston, the indoor leather cup that has oil seal spring and be positioned at the oil seal spring two ends of oil sealing, leather cup contacts with piston plate, also has the dust boot of band metallic framework at the two ends of cylinder body, inwall at the cylinder body two ends offers the cover groove, and the dust boot of band metallic framework is placed in the cover groove.
The dust boot of band metallic framework is built in the two ends of cylinder body.
Under the effect of oil seal spring, leather cup and piston plate closed contact help to prevent entering of air.
The utility model is by offering the cover groove at the inwall at cylinder body two ends, the dust boot of band metallic framework is placed in the cover groove, make the dust boot of band metallic framework be built in the cylinder body two ends of brake wheel cylinder, dust boot is combined with the cylinder body interference, in the process of piston motion, can prevent coming off of dust boot effectively, and can prevent effectively that impurity such as dust, greasy dirt from entering in the cylinder body.
Description of drawings
Fig. 1 is existing brake wheel cylinder constructional drawing with external dust boot.
Fig. 2 is the constructional drawing of the utility model brake wheel cylinder.
Among the figure, 1. cylinder body, 2. dust boot, 3. piston, 4. leather cup, 5. oil seal spring, 6. the cover groove.
The specific embodiment
See also Fig. 1 and Fig. 2, as shown in the figure, the brake wheel cylinder assembly includes cylinder body 1, at cylinder body 1 two ends piston 3 is installed, form the oil sealing chamber in the cylinder body 1 between the two-piston, the indoor leather cup 4 that oil seal spring 5 is arranged and be positioned at oil seal spring 5 two ends of oil sealing is under the effect of oil seal spring 5, leather cup 4 and piston plate closed contact can effectively prevent entering of air; The dust boot 2 that also has the band metallic framework at the two ends of cylinder body 1, in the existing brake wheel cylinder as Fig. 1, dust boot 2 places outside the cylinder body 1, it comes off in the process of piston motion easily, in the drawing wheel cylinder of the present utility model of Fig. 2, inwall at cylinder body 1 two ends offers cover groove 6, dust boot 2 is placed in the cover groove 6, dust boot 2 combines with cylinder body 1 interference, in the piston motion process, can prevent coming off of dust boot effectively, enter in the cylinder body more effectively to prevent impurity such as dust, greasy dirt.
Although the utility model has been done to describe in detail and quoted embodiment as proof, for those of ordinary skill in the art, obviously various schemes, modification and the change that can make according to above-mentioned explanation all should be included within the scope of claim.
Claims (2)
1. brake wheel cylinder assembly, include cylinder body (1), has piston (3) at the two ends of cylinder body (1), form the oil sealing chamber between the interior two-piston of cylinder body (1), the indoor leather cup (4) that has oil seal spring (5) and be positioned at oil seal spring (5) two ends of oil sealing, leather cup (4) contacts with piston plate, the dust boot (2) that also has the band metallic framework at the two ends of cylinder body (1), it is characterized in that: the inwall at cylinder body (1) two ends offers cover groove (6), and the dust boot (2) of band metallic framework is placed in the cover groove (6).
2. brake wheel cylinder assembly as claimed in claim 1 is characterized in that: the dust boot of described band metallic framework (2) is built in the two ends of cylinder body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920188255XU CN201520290U (en) | 2009-10-14 | 2009-10-14 | Brake wheel cylinder assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920188255XU CN201520290U (en) | 2009-10-14 | 2009-10-14 | Brake wheel cylinder assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201520290U true CN201520290U (en) | 2010-07-07 |
Family
ID=42506469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920188255XU Expired - Fee Related CN201520290U (en) | 2009-10-14 | 2009-10-14 | Brake wheel cylinder assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201520290U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102367849A (en) * | 2011-09-23 | 2012-03-07 | 芜湖恒坤汽车部件有限公司 | Easy-to-install braking master cylinder |
-
2009
- 2009-10-14 CN CN200920188255XU patent/CN201520290U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102367849A (en) * | 2011-09-23 | 2012-03-07 | 芜湖恒坤汽车部件有限公司 | Easy-to-install braking master cylinder |
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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: 20100707 Termination date: 20131014 |