CN204805394U - Car brake chamber - Google Patents
Car brake chamber Download PDFInfo
- Publication number
- CN204805394U CN204805394U CN201520376992.8U CN201520376992U CN204805394U CN 204805394 U CN204805394 U CN 204805394U CN 201520376992 U CN201520376992 U CN 201520376992U CN 204805394 U CN204805394 U CN 204805394U
- Authority
- CN
- China
- Prior art keywords
- seal
- cylinder body
- piston
- seal groove
- brake chamber
- 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
Links
Abstract
The utility model discloses a seal car brake chamber effectual, long service life. It includes the cylinder body, locate piston in the cylinder body, locate the cylinder body bottom the check valve subassembly, with piston fixed connection's middle pipe, piston periphery and the sealed cooperation of interior week of cylinder body, the piston periphery is equipped with the seal groove, be equipped with the sealing washer in the seal groove, be equipped with 3 sealed blades on the sealing washer, including 1 inside seal blade and 2 side seal blades, inside seal blade and the sealed cooperation of interior week of cylinder body, side seal blade and the interior side seal cooperation of seal groove, be equipped with V type opening on the sealing washer, the seal groove bottom is equipped with the air vent. The utility model is suitable for a car brake chamber.
Description
Technical field
The utility model relates to a kind of automobile component, particularly relates to a kind of brake chamber be applicable on automobile.
Background technique
Traditional spring brake chamber cylinder piston seal form adopts Y-shaped ring, namely the interference of y-type seal ring inner circle is arranged in piston groove, cylindrical and cylinder block interference are installed, by inner circle and piston interference, cylindrical and cylinder body interference in working procedure, in pressure sealing of being bullied; On the one hand, because cylinder piston and cylinder block exist certain gap when assembling, piston secundly can be caused, causing seal ring peripheral sealing and wearing and tearing uneven; On the other hand, due to the feature of brake spring, compression or stretching, extension in work, spring end can around axis rotation several angle, cylinder piston is caused to follow rotation, this unfavorable phenomenon causes Y-shaped ring circumferentially part stretching, Partial shrinkage, makes Y-shaped ring inner circle part throw off at the bottom of piston groove and leak gas, and shortens the working life of Y circle.
In addition, traditional internal respiration valve assembly, by screw thread and tubes connection, is deviate from, is caused conduit bursting epithelium and leak gas, thus affecting working life under long-term vibration and after loosening by pressure valve body and tubes connection.
Model utility content
The technical problems to be solved in the utility model is to provide the automobile brake chamber of a kind of good sealing effect, long service life.
In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions:
The utility model comprises cylinder body, be located at the piston in cylinder body, be located at the check valve assembly of cylinder base, the intermediate conductor be fixedly connected with piston, described piston outer periphery and cylinder body inner circumferential are sealed and matched, described piston outer periphery is provided with seal groove, seal ring is provided with in described seal groove, described seal ring is provided with 3 sealing cutting edges, comprise in 1 and seal cutting edge and 2 side sealing cutting edges, described interior sealing cutting edge and cylinder body inner circumferential are sealed and matched, described side sealing cutting edge coordinates with seal groove inner seal, described seal ring is provided with V-type opening, vent is provided with bottom described seal groove.
As preferably, described intermediate conductor front end is provided with internal respiration valve, and described internal respiration valve end is provided with valve gap, and described intermediate conductor end is provided with flange, described valve gap and flange riveting.
The utility model compared with prior art, has following obvious advantage and beneficial effect:
1, good sealing effect.Because the utility model adopts triple seal structure, interior sealing cutting edge and cylinder body inner circumferential are sealed and matched, and both sides sealing cutting edge and piston groove inner side surface are sealed and matched, and arrange vent at the bottom of piston groove, acted radially on the sealing cutting edge on seal ring by pressure, thus effectively improve sealing effect.
2, long service life.Because the valve gap on the internal respiration valve in the utility model and intermediate conductor end flange adopt riveting, improve the fastness of connection, thus effectively improve working life.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structure for amplifying schematic diagram at I place in Fig. 1;
The structure for amplifying schematic diagram of seal ring in Fig. 3 Fig. 2;
Fig. 4 is the structure for amplifying schematic diagram at II place in Fig. 1.
Embodiment
Below in conjunction with the drawings and the specific embodiments, the utility model is described in further detail:
As shown in Figures 1 to 4: the utility model comprises cylinder body 1, be located at the piston 2 in cylinder body 1, be located at the check valve assembly 3 bottom cylinder body 1, the intermediate conductor 5 be fixedly connected with piston 2, piston 2 periphery and cylinder body 1 inner circumferential are sealed and matched, piston 2 periphery is provided with seal groove 6, seal ring 7 is provided with in seal groove 6, seal ring 7 is provided with 3 sealing cutting edges 8, 9, 10, comprise in 1 and seal cutting edge 8 and 2 side sealing cutting edges 9, 10, interior sealing cutting edge 8 is sealed and matched with cylinder body 1 inner circumferential, side sealing cutting edge 9, 10 coordinate with seal groove 6 inner seal, seal ring 7 is provided with V-type opening 11, vent 12 is provided with bottom seal groove 6, pressurized air is made to enter in seal groove 6 by vent 12, act on seal ring 7V type opening 11, increase sealing cutting edge 8 and cylinder body inner circumferential and seal cutting edge 9, 10 with the active force of seal groove 6 both sides, thus effectively improve sealing effect, intermediate conductor 5 front end is provided with internal respiration valve 13, and internal respiration valve 13 end is provided with valve gap 15, and intermediate conductor 5 end is provided with flange 16, valve gap 15 and flange 16 riveting.
Claims (2)
1. an automobile brake chamber, comprise cylinder body, be located at the piston in cylinder body, be located at the check valve assembly of cylinder base, the intermediate conductor be fixedly connected with piston, described piston outer periphery and cylinder body inner circumferential are sealed and matched, described piston outer periphery is provided with seal groove, seal ring is provided with in described seal groove, it is characterized in that described seal ring is provided with 3 sealing cutting edges, comprise in 1 and seal cutting edge and 2 side sealing cutting edges, described interior sealing cutting edge and cylinder body inner circumferential are sealed and matched, described side sealing cutting edge coordinates with seal groove inner seal, described seal ring is provided with V-type opening, vent is provided with bottom described seal groove.
2. automobile brake chamber according to claim 1, is characterized in that described intermediate conductor front end is provided with internal respiration valve, and described internal respiration valve end is provided with valve gap, and described intermediate conductor end is provided with flange, described valve gap and flange riveting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520376992.8U CN204805394U (en) | 2015-06-02 | 2015-06-02 | Car brake chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520376992.8U CN204805394U (en) | 2015-06-02 | 2015-06-02 | Car brake chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204805394U true CN204805394U (en) | 2015-11-25 |
Family
ID=54590227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520376992.8U Expired - Fee Related CN204805394U (en) | 2015-06-02 | 2015-06-02 | Car brake chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204805394U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107676488A (en) * | 2017-10-30 | 2018-02-09 | 瑞立集团瑞安汽车零部件有限公司 | A kind of special-shaped seal ring |
-
2015
- 2015-06-02 CN CN201520376992.8U patent/CN204805394U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107676488A (en) * | 2017-10-30 | 2018-02-09 | 瑞立集团瑞安汽车零部件有限公司 | A kind of special-shaped seal ring |
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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: 20151125 Termination date: 20160602 |