CN202381602U - Automobile hydraulic brake wheel cylinder - Google Patents
Automobile hydraulic brake wheel cylinder Download PDFInfo
- Publication number
- CN202381602U CN202381602U CN201120089869XU CN201120089869U CN202381602U CN 202381602 U CN202381602 U CN 202381602U CN 201120089869X U CN201120089869X U CN 201120089869XU CN 201120089869 U CN201120089869 U CN 201120089869U CN 202381602 U CN202381602 U CN 202381602U
- Authority
- CN
- China
- Prior art keywords
- piston
- cylinder
- cylinder body
- female
- 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
Links
Images
Landscapes
- Braking Arrangements (AREA)
Abstract
The utility model discloses an automobile hydraulic brake wheel cylinder, which can be used to solve the problem that the apron is damaged, even disabled, because the wheel cylinder apron can be extruded in the increased wear gap between a piston and a cylinder wall under the action of the brake oil pressure. The utility model is characterized in that pistons in a cylinder body (9) can be configured to be a male piston (1) and a female piston (4), which can be used to guide each other. An oil through hole (3) is disposed in an inner cylindrical surface (11) of the female piston (4), and sealing rings (7) are respectively sleeved on the male piston as well as the female piston, and are disposed in the cylinder body (9). A spring (8) is disposed in a guiding inner cavity of the piston, and an outer end of the spring (8) is cooperated with a supporting block (6), besides, two ends of the cylinder body are provided with protective covers (5). The automobile hydraulic brake wheel cylinder provided in the utility model has advantages of simple structure, reasonable design, and abilities of greatly prolonging the service lifetime and reducing the potential driving safety hazards by enabling the left and right pistons to guide each other.
Description
One, technical field
The utility model belongs to brake device for car, relates in particular to a kind of hydraulic vehicle braking wheel cylinder.
Two, background technique
Existing hydraulic braking system for automobile generally adopts drum brake, and its inner force-transmitting device adopts double piston wheel brake cylinder more.During braking,, cause the piston guide periphery very easily to wear and tear because the guiding frictional force that piston bears is bigger.After the wearing and tearing, the matching gap of piston and casing wall strengthens, and piston more is prone to unstability during braking, thereby guiding force sharply increases, and forms vicious circle.After piston and casing wall gap increased, the wheel cylinder apron was squeezed into this gap under the effect of braking oil pressure, cause the damage of apron to lose efficacy until it, the main problem that this exists for existing wheel cylinder.
Three, summary of the invention
The purpose of the utility model provides a kind of simple in structure, need not change the external structure and the installation dimension of wheel cylinder, only its inner body structure is carried out appropriate design, thereby significantly improves the hydraulic braking wheel cylinder in its working life.
The technological scheme of the utility model is: the hydraulic vehicle braking wheel cylinder is partly to be made up of cylinder body, piston, seal ring, spring, support block and dust-proof cover etc., and the existing piston in the cylinder body is set to public piston and female piston of guiding mutually.Said public piston has been set up external cylindrical surface to the cylinder interior end, and itself and female piston hole are formed movingly, and the control matching gap.Set up and the corresponding inner cylindrical surface of public outside piston cylinder to the cylinder interior end at female piston simultaneously, itself and public piston are formed movingly, and the control matching gap.On female piston inner cylindrical surface, also be provided with oil through; Public female piston is communicated with the piston guide inner chamber with oil pocket between cylinder body, and on the female piston of public affairs, all overlaps seal ring and be installed in the cylinder body, the piston guide inner chamber is provided with spring; Its outer end cooperates with support block, and the cylinder body two ends are provided with dust-proof cover.
The beneficial effect of the utility model is: owing in the hydraulic vehicle braking wheel cylinder, be provided with the male and female piston of mutual guiding; Increased the guiding length of piston, and the guiding force point of action is placed outside the force bearing point of piston two ends, guiding moment increases; Guiding force when making piston motion (the piston circumference is to the active force of inboard wall of cylinder block) significantly reduces; Thereby greatly alleviate wearing for piston, both improved working life, also eliminated traffic safety hidden danger.
Below in conjunction with accompanying drawing the utility model is further described.
Four, description of drawings
Fig. 1 is the utility model structural representation.
Among the figure: 1 is public piston, and 2 is oil inlet hole, and 3 is oil through, and 4 is female piston, and 5 is dust-proof cover, and 6 is support block, and 7 is seal ring, and 8 is spring, and 9 is cylinder body, and 10 is external cylindrical surface, and 11 is inner cylindrical surface.
Five, embodiment
As shown in Figure 1, on the basis that makes existing hydraulic vehicle braking wheel cylinder, piston is made into the public piston 1 and female piston 4 of mutual guiding, remaining parts is with existing consistent.Said public piston 1 is on the basis of former piston, to increase suitable length to wheel cylinder cylinder body 9 inside end, and is provided with one section external cylindrical surface 10.Said female piston 4 is on the basis of former piston, increases suitable length to wheel cylinder cylinder body 9 inside end, and is provided with one section inner cylindrical surface 11, its external cylindrical surface 10 with public piston 1 is formed movingly, and control matching gap.On female piston 4 bodies, also be provided with oil through 3, the area that retardation pressure is acted on the piston is constant; Change spring 8 sizes make it place the piston guide inner chamber, keep its original elimination support block 6 constant with the function in brake shoe gap; Two seal rings 7 are placed in respectively on public piston 1 and the female piston 4, make and form sealing between wheel cylinder inner chamber and outside; The support block 6 constant two ends that are installed on public female piston form wear-resisting support binding at brake shoe and piston space; Cylinder body 9 two ends are provided with dust-proof cover 5, prevent that external dust from getting into its inside.
When implementing the utility model, when needs made automobile brake, brake fluid got in the wheel cylinder through oil inlet hole 2, and is full of whole wheel cylinder inner chamber through oil through 3.Under the effect of braking oil pressure, public piston 1 with female piston 4 respectively to external movement and push brake shoe open and form braking force.In the outside movement process of piston; Because brake shoe belongs to a little stressed to the active force of support block; Do not have stabilising direction property and braking oil pressure belongs to the face effect to the active force of piston, piston is the unstability deflection very easily, so the housing inner headed face forms leading role to piston.
In the utility model, the guiding except between original piston and housing is constant, increased left and right sides two-piston-public piston 1 and female piston 4 guiding each other.This guiding force is in the rear of oil pressure active force, and is fabulous to the steering capability of action direction of guiding oil pressure, also increased guiding moment simultaneously, alleviated the friction between piston and wheel cylinder cylinder body, and the wearing for piston life-span is greatly improved.
Claims (2)
1. hydraulic vehicle braking wheel cylinder; It comprises cylinder body, piston, seal ring, spring, support block and dust-proof cover; It is characterized in that: the piston in the cylinder body (9) is set to public piston (1) and female piston (4) of guiding mutually, and said public piston (1) has been set up external cylindrical surface (10) to cylinder body (9) inside end, and female piston (4) has been set up the inner cylindrical surface (11) that cooperates with public outside piston cylinder (10) to the cylinder interior end; All overlapping seal ring (7) on public female piston is installed in the cylinder body (9); The piston guide inner chamber is provided with spring (8), and its outer end cooperates with support block (6), and the cylinder body two ends are provided with dust-proof cover (5).
2. hydraulic vehicle braking wheel cylinder according to claim 1 is characterized in that: on female piston (4) inner cylindrical surface (11), also be provided with oil through (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120089869XU CN202381602U (en) | 2011-03-30 | 2011-03-30 | Automobile hydraulic brake wheel cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120089869XU CN202381602U (en) | 2011-03-30 | 2011-03-30 | Automobile hydraulic brake wheel cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202381602U true CN202381602U (en) | 2012-08-15 |
Family
ID=46630107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120089869XU Expired - Fee Related CN202381602U (en) | 2011-03-30 | 2011-03-30 | Automobile hydraulic brake wheel cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202381602U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103216552A (en) * | 2013-05-06 | 2013-07-24 | 张庆冬 | Brake device |
| CN104265808A (en) * | 2014-09-11 | 2015-01-07 | 河南飞龙(芜湖)汽车零部件有限公司 | Combined brake wheel cylinder |
| CN105508472A (en) * | 2015-12-22 | 2016-04-20 | 芜湖恒坤汽车部件有限公司 | Vehicle brake wheel cylinder |
-
2011
- 2011-03-30 CN CN201120089869XU patent/CN202381602U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103216552A (en) * | 2013-05-06 | 2013-07-24 | 张庆冬 | Brake device |
| CN103216552B (en) * | 2013-05-06 | 2015-06-10 | 张庆冬 | Brake device |
| CN104265808A (en) * | 2014-09-11 | 2015-01-07 | 河南飞龙(芜湖)汽车零部件有限公司 | Combined brake wheel cylinder |
| CN105508472A (en) * | 2015-12-22 | 2016-04-20 | 芜湖恒坤汽车部件有限公司 | Vehicle brake wheel cylinder |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204284256U (en) | Picking-up vehicle double-action wet-type hydraulic brake | |
| CN202381602U (en) | Automobile hydraulic brake wheel cylinder | |
| CN101595325A (en) | Wet-type multi-plate brake device for vehicle | |
| CN202371053U (en) | Wet brake | |
| CN106523550A (en) | Vehicle gap adjustable conical brake device | |
| CN105545996A (en) | Underground carry-scraper parking brake speed reducer | |
| CN202215646U (en) | Mechanical normally-closed wet-type brake for vehicles | |
| CN203651807U (en) | Spring braking totally-closed wet-type parking brake | |
| CN103671643A (en) | Wet type vehicle brake braking force increasing mechanism | |
| CN202170947U (en) | Novel multi-disc brake | |
| CN102963212B (en) | Vehicle and rigid dead axle | |
| CN217271541U (en) | Normally closed wet brake with double friction pairs | |
| CN202756498U (en) | Braking force increasing mechanism for wet type automobile brake | |
| CN106286648B (en) | Brake for hydrostatic transmissions | |
| CN101839209A (en) | In-built baking cycloid hydraulic motor | |
| CN202215644U (en) | Drum brake wheel cylinder used for automobile hydraulic braking | |
| CN102364149A (en) | Bidirectional brake wheel cylinder assembly | |
| CN205592307U (en) | Brake assembly and mechanical device | |
| CN202301595U (en) | Multi-piston fully-closed wet-type brake | |
| CN204852084U (en) | Separation and reunion booster assembly | |
| CN205559650U (en) | Hydraulic braking jar | |
| CN102364146A (en) | Brake wheel cylinder assembly for preventing collision between pistons | |
| CN215861436U (en) | Novel wheel-side walking and parking integrated wet brake | |
| CN212318580U (en) | Novel braking system device of underground carry scraper | |
| CN201982550U (en) | Dual-sealing hydraulic rear wheel cylinder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Wang Yunfeng Document name: Notification to Pay the Fees |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120815 Termination date: 20140330 |