CN102390373A - Braking main cylinder assembly with dual pistons - Google Patents
Braking main cylinder assembly with dual pistons Download PDFInfo
- Publication number
- CN102390373A CN102390373A CN2011102843041A CN201110284304A CN102390373A CN 102390373 A CN102390373 A CN 102390373A CN 2011102843041 A CN2011102843041 A CN 2011102843041A CN 201110284304 A CN201110284304 A CN 201110284304A CN 102390373 A CN102390373 A CN 102390373A
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- China
- Prior art keywords
- blind hole
- piston assembly
- cylinder body
- assembly
- main 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.)
- Pending
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- Transmission Of Braking Force In Braking Systems (AREA)
- Braking Arrangements (AREA)
Abstract
The invention discloses a braking main cylinder assembly with dual pistons. The braking main cylinder assembly comprises a cylinder body, wherein a blind hole is formed in cylinder body; a front piston assembly and a back piston assembly which are connected fixedly are arranged in the blind hole, and are in sliding fit with the hole wall of the blind hole; a check ring and a stopping check ring are arranged between the matching surfaces of the front end of the back piston assembly and the front end of the blind hole respectively; springs are connected between the front piston assembly and the back piston assembly as well as between the front piston assembly and the tail end of the blind hole respectively; a limiting screw is threaded on the cylinder body arranged in front of the front piston assembly; the upper end of the cylinder body is provided with two oil injection holes leading to the blind hole respectively, and is connected with an oil cup; and the lower end of the cylinder body is provided with two oil nozzles leading to the blind hole, and is connected with an oil outlet joint. The baking main cylinder assembly has a simple structure and very good practical value, and is very convenient to install and maintain; and the front piston assembly and the back piston assembly are applied to a brake, so that the baking performance is greatly improved.
Description
Technical field
The present invention relates to the car brake field, be specifically related to a kind of brake master cylinder assembly with double-piston.
Background technology
Master brake cylinder generally is made up of brake cylinder head, piston, piston rod, leather cup and release spring etc.; Effect through triple valve; When making pressurized air get into brake cylinder, promoting piston and play brake action through a cover base apparatus, is a part of car brake; Be used to produce the power that hinders vehicle movement or movement tendency, i.e. braking force.
The most more complicated of existing master brake cylinder structure, volume is big, and it is big to take up room, and has brought inconvenience to installation and maintenance; Its inside is provided with single-piston, floating-caliper brake mostly in addition, and it is not fine causing braking effect.
Summary of the invention
The purpose of this invention is to provide a kind of brake master cylinder assembly, the double-piston assembly is set and is applied to and improve deceleration and stopping performance in the drg with double-piston.
Technical scheme of the present invention is following:
A kind of brake master cylinder assembly with double-piston; Include cylinder body; It is characterized in that: be provided with blind hole in the said cylinder body; Be provided with the forward and backward piston assembly that is connected mutually in the described blind hole, the hole wall bearing fit of described forward and backward piston assembly and blind hole is respectively equipped with back-up ring and stopping back-up ring between the front end fitting surface of the front end of said primary piston assembly and blind hole; Be connected with spring respectively between the described forward and backward piston assembly and between the end of secondary piston assembly and blind hole, be positioned on the cylinder body in secondary piston assembly the place ahead and screwed togather stop screw; The upper end of said cylinder body is respectively equipped with two oil holes that lead to blind hole and connects lubricating cup, and the lower end of cylinder body is respectively equipped with two oil nozzles that lead to blind hole and connects discharge outlet.
Described brake master cylinder assembly with double-piston is characterized in that: be positioned on the cylinder body of blind hole front end and be installed with dust boot.
Beneficial effect of the present invention:
The present invention is rational in infrastructure, forward and backward double-piston assembly is set and is applied in the drg, improved deceleration and stopping performance greatly, and installation and maintenance is all very convenient, has good practical value.
Description of drawings
Fig. 1 is a structural representation of the present invention.
The specific embodiment
Referring to Fig. 1; A kind of brake master cylinder assembly with double-piston; Include cylinder body 1, be provided with blind hole 16 in the cylinder body 1, be provided with the forward and backward piston assembly 6,5 that is connected mutually in the blind hole 16; The hole wall bearing fit of forward and backward piston assembly 6,5 and blind hole 16; Be respectively equipped with back-up ring 2 and stopping back-up ring 3 between the front end fitting surface of the front end of primary piston assembly 5 and blind hole 16, forward and backward piston assembly 6, be connected with spring 17 respectively between 5 and between the end of secondary piston assembly 6 and blind hole 16, be positioned at and screwed togather stop screw 7 on the cylinder body 1 in secondary piston assembly 6 the place aheads and seal through O type circle 8; The upper end of cylinder body 1 is respectively equipped with two oil holes that lead to blind hole 16 and connects lubricating cup 14; The outer wall of lubricating cup 14 is provided with hoop 15; Be used for fixing; The lower end of cylinder body 1 is respectively equipped with two oil nozzles 10 that lead to blind hole 16 and connects discharge outlet 12, and the oral area of discharge outlet 12 is provided with dust plug 11, seals through copper packing 13 and O type circle 9 between the fitting surface of discharge outlet 12 and cylinder body 1.
Further, be positioned on the cylinder body 1 of blind hole 16 front ends and be installed with dust boot 4.
Claims (2)
1. brake master cylinder assembly with double-piston; Include cylinder body; It is characterized in that: be provided with blind hole in the said cylinder body; Be provided with the forward and backward piston assembly that is connected mutually in the described blind hole, the hole wall bearing fit of described forward and backward piston assembly and blind hole is respectively equipped with back-up ring and stopping back-up ring between the front end fitting surface of the front end of said primary piston assembly and blind hole; Be connected with spring respectively between the described forward and backward piston assembly and between the end of secondary piston assembly and blind hole, be positioned on the cylinder body in secondary piston assembly the place ahead and screwed togather stop screw; The upper end of said cylinder body is respectively equipped with two oil holes that lead to blind hole and connects lubricating cup, and the lower end of cylinder body is respectively equipped with two oil nozzles that lead to blind hole and connects discharge outlet.
2. the brake master cylinder assembly with double-piston according to claim 1 is characterized in that: be positioned on the cylinder body of blind hole front end and be installed with dust boot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102843041A CN102390373A (en) | 2011-09-22 | 2011-09-22 | Braking main cylinder assembly with dual pistons |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102843041A CN102390373A (en) | 2011-09-22 | 2011-09-22 | Braking main cylinder assembly with dual pistons |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102390373A true CN102390373A (en) | 2012-03-28 |
Family
ID=45857801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102843041A Pending CN102390373A (en) | 2011-09-22 | 2011-09-22 | Braking main cylinder assembly with dual pistons |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102390373A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104176028A (en) * | 2014-07-19 | 2014-12-03 | 芜湖恒坤汽车部件有限公司 | Brake master cylinder |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5551136A (en) * | 1978-10-09 | 1980-04-14 | Akebono Brake Ind Co Ltd | Wheel cylinder device with idle stroke |
| CN2362756Y (en) * | 1999-03-11 | 2000-02-09 | 李永忠 | Brake assembling pump for agricultural tricycle |
| CN2758140Y (en) * | 2004-04-22 | 2006-02-15 | 芜湖华亨汽车部件有限公司 | Vacuum booster having brake master cylinder |
| CN2855849Y (en) * | 2005-12-23 | 2007-01-10 | 吉林汽车制动器厂 | Plunger type main cylinder of automobile brake |
| CN200939879Y (en) * | 2006-08-18 | 2007-08-29 | 万安集团有限公司 | Automobile braking general pump assembly |
-
2011
- 2011-09-22 CN CN2011102843041A patent/CN102390373A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5551136A (en) * | 1978-10-09 | 1980-04-14 | Akebono Brake Ind Co Ltd | Wheel cylinder device with idle stroke |
| CN2362756Y (en) * | 1999-03-11 | 2000-02-09 | 李永忠 | Brake assembling pump for agricultural tricycle |
| CN2758140Y (en) * | 2004-04-22 | 2006-02-15 | 芜湖华亨汽车部件有限公司 | Vacuum booster having brake master cylinder |
| CN2855849Y (en) * | 2005-12-23 | 2007-01-10 | 吉林汽车制动器厂 | Plunger type main cylinder of automobile brake |
| CN200939879Y (en) * | 2006-08-18 | 2007-08-29 | 万安集团有限公司 | Automobile braking general pump assembly |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104176028A (en) * | 2014-07-19 | 2014-12-03 | 芜湖恒坤汽车部件有限公司 | Brake master cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120328 |