CN201751254U - Improved structure for brake master cylinder - Google Patents
Improved structure for brake master cylinder Download PDFInfo
- Publication number
- CN201751254U CN201751254U CN2010202498610U CN201020249861U CN201751254U CN 201751254 U CN201751254 U CN 201751254U CN 2010202498610 U CN2010202498610 U CN 2010202498610U CN 201020249861 U CN201020249861 U CN 201020249861U CN 201751254 U CN201751254 U CN 201751254U
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- CN
- China
- Prior art keywords
- liquid storage
- brake
- valve seat
- storage cylinder
- 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 - Lifetime
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- Transmission Of Braking Force In Braking Systems (AREA)
Abstract
The utility model relates an improved structure for brake master cylinder, mainly comprises a liquid storage tank, a first liquid storage chamber communicated with the liquid storage tank, a first brake chamber communicated with the first liquid storage chamber, and a first piston assembly situated in the first liquid storage chamber and the first brake chamber. The improved structure for brake master cylinder is characterized in that a rapid filling valve is arranged on the oil-way between an oil tank and the first liquid storage chamber, so as to increase the operating pressure in the first brake cavity, effectively increase brake displacement, shorten idle stroke, and greatly improve brake sensitivity.
Description
Technical field
The utility model relates to the brake system field of automobile, is meant master brake cylinder in the brake system especially, with its structurally associated.
Background technology
As shown in Figure 1, master brake cylinder in the general brake system of car is to provide braking liquid by petrol storage tank to first liquid storage cylinder, glancing impact is to the stretcher application of force, utilize lever principle, by vacuum booster external force is amplified and start first liquid storage cylinder in the first piston assembly, compression makes first brake chamber produce pressure, and make braking liquid charge into each car side brake (being brake cylinder and brake clamp) realization braking, but this structure exists the braking liquid discharge capacity of first liquid storage cylinder not enough, can't make first brake chamber reach enough pressure rapidly, cause the braking procedure idle travel excessive, braking time is long, sensitivity is not high, and braking liquid can not be full of in brake cylinder or the brake clamp pressure chamber fully when normal brake application and emergency braking, causes the automobile brake poor effect.
The utility model content
Because above-mentioned deficiency, the purpose of this utility model is to provide a kind of structure-improved of master brake cylinder, can improve sensitivity, makes the braking effect of master brake cylinder better.
For reaching this purpose, the technical solution of the utility model is:
A kind of structure-improved of master brake cylinder, mainly include fluid reservoir, first liquid storage cylinder that communicates with fluid reservoir, be communicated with first liquid storage cylinder first brake chamber, be located at first liquid storage cylinder and the interior first piston assembly of first brake chamber, it is characterized in that: a quick charge valve is set on the oil circuit between the petrol storage tank and first liquid storage cylinder.
Described quick charge valve is made up of valve seat, shell fragment, loam cake and an oil return pad, described valve seat top tool one open end, and the middle part forms the V-slot of a tool relief hole, for being installed with a steel ball, some perforation are laid in the bottom of valve seat around this V-slot in addition, and a perforated side is therein established a fluting; Described shell fragment combines on the open end of being located at valve seat with loam cake, and this shell fragment and loam cake respectively are provided with perforate; Described oil return pad is located at the below of valve seat.
The utility model adopts said structure, can improve the operation pressure in first brake chamber, actv. increases the braking discharge capacity, shortened idle travel, significantly improve the sensitivity of glancing impact, and by this quick charge valve can stablize and balance first liquid storage cylinder and first brake chamber in pressure, guaranteed the reliable delivery and the quiet run of braking force.
Description of drawings
Fig. 1 is a structural representation of commonly using master brake cylinder;
Fig. 2 is the utility model unitized construction scheme drawing;
Fig. 3 is the local enlarged diagram of the utility model, shows the structure of quick charge valve;
Fig. 4 is the STRUCTURE DECOMPOSITION scheme drawing of the quick charge valve of the utility model;
Fig. 5 is the STRUCTURE DECOMPOSITION other direction scheme drawing of the quick charge valve of the utility model.
The specific embodiment
Extremely shown in Figure 5 as Fig. 2, structure improved combination scheme drawing for the utility model master brake cylinder, this master brake cylinder mainly includes fluid reservoir 1, first liquid storage cylinder 2 that communicates with fluid reservoir 1, is communicated with first brake chamber 3 of first liquid storage cylinder 2, is located at the first piston assembly 4 in first liquid storage cylinder 2 and first brake chamber 3, this part is the master brake cylinder structure of commonly seeing, so do not described in detail.And specifically, the utility model is that a quick charge valve 5 (referring to Fig. 2) is set on the oil circuit between the petrol storage tank 1 and first liquid storage cylinder 2, this quick charge valve 5 is by valve seat 51, shell fragment 52, a loam cake 53 and an oil return pad 54 are formed, described valve seat 51 corresponding sealings are located between the fluid reservoir 1 and first liquid storage cylinder 2, valve seat 51 top tools one open end 511, and the middle part forms the V-slot 512 of a tool relief hole 513, for being installed with a steel ball 514, and this steel ball 514 just can this relief hole 513 of corresponding capping, some perforation 515 are laid in the bottom of valve seat 51 around this V-slot 512 in addition, and therein one perforation 515 side establish a fluting 516, this this relief hole 513 of charge valve 5 mats and some perforation 515 and be communicated with the fluid reservoir 1 and first liquid storage cylinder 2; Described shell fragment 52 combines on the open end 511 of being located at valve seat 51 with loam cake 53, and respectively be provided with perforate 521,531 on this shell fragment 52 and the loam cake 53, this shell fragment 52 is in order to elastic limit steel ball 514, prevents that steel ball from deviating from outside the V-slot 512, and this loam cake 53 is in order to limitation and locate this shell fragment 52; Described oil return pad 54 is located at the below of valve seat 51, seals this V-slot 512 some perforation 515 on every side in order to correspondence.
The utilization said structure, principle of work of the present utility model is: during brake, to the stretcher application of force, make first piston assembly 4 () motion forward to the right as arrow indication among Fig. 2, make this first liquid storage cylinder 2 produce pressure, when first liquid storage cylinder, 2 pressure during greater than first brake chamber, 3 pressure, braking liquid will flow in first brake chamber 3 around the pressure apron of first piston assembly 4, make first liquid storage cylinder 2 and first brake chamber, 3 pressure equate, increase operation pressure in first brake chamber 3 with this, make braking liquid enter brake cylinder in advance or brake clamp (producing precompressed in advance) has shortened idle travel, promptly shorten the time that braking liquid enters each car side brake (brake cylinder or brake clamp), reduced the forced stroke of pedal.Along with first piston assembly 4 continues (to the right) motion forward, when the pressure in first liquid storage cylinder 2 during greater than barometric pressure, pressure in first liquid storage cylinder 2 are tightly pushed down and the perforation 515 of closed valve seat 51 the oil return pad 54 of quick charge valve 5, and unnecessary braking liquid flows into perforation 515 from the fluting 516 of a perforation 515 sides wherein and enters the fluid reservoir 1; First piston assembly 4 forward (to the right) move to first liquid storage cylinder, 2 internal pressures when reaching certain value (400Kpa), make braking liquid under pressure the relief hole 513 by charge valve 5 overcome shell fragment 52 steel ball 514 lifted, make braking liquid flow back to fast in the fluid reservoir 1 by the perforate 521,531 of relief hole 513 on shell fragment 52, loam cake 53, to stablize the pressure in first liquid storage cylinder 2, the reliable delivery and the quiet run of braking force have been guaranteed.
When loosen the brake, this first piston assembly 4 returns under the effect of its pull back spring, in first liquid storage cylinder 2, form negative pressure, suction function makes the braking liquid in the fluid reservoir 1 back down the oil return pad 54 of quick charge valve 5, on valve seat 51, respectively bore a hole 515, replenish fast and enter first liquid storage cylinder 2, for braking next time provides hydraulic medium.
As seen above-mentioned, the utility model is provided with this quick charge valve 5 and carries out repairing by increasing on the feed flow oil circuit of the petrol storage tank 1 of master brake cylinder and first liquid storage cylinder 2, not only can improve the operation pressure in first brake chamber 3, actv. increases the braking discharge capacity, shortened idle travel, significantly improve the sensitivity of glancing impact, and reach the stable pressure that reaches in balance first liquid storage cylinder 2 and first brake chamber 3, guaranteed the reliable delivery and the quiet run of braking force by this quick charge valve 5.
Claims (2)
1. the structure-improved of a master brake cylinder, mainly include fluid reservoir, first liquid storage cylinder that communicates with fluid reservoir, be communicated with first liquid storage cylinder first brake chamber, be located at first liquid storage cylinder and the interior first piston assembly of first brake chamber, it is characterized in that: a quick charge valve is set on the oil circuit between the petrol storage tank and first liquid storage cylinder.
2. the structure-improved of master brake cylinder as claimed in claim 1, it is characterized in that: this quick charge valve is made up of valve seat, shell fragment, loam cake and an oil return pad, described valve seat top tool one open end, and the middle part forms the V-slot of a tool relief hole, for being installed with a steel ball, some perforation are laid in the bottom of valve seat around this V-slot in addition, and a perforated side is therein established a fluting; Described shell fragment combines on the open end of being located at valve seat with loam cake, and this shell fragment and loam cake respectively are provided with perforate; Described oil return pad is located at the below of valve seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202498610U CN201751254U (en) | 2010-06-30 | 2010-06-30 | Improved structure for brake master cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202498610U CN201751254U (en) | 2010-06-30 | 2010-06-30 | Improved structure for brake master cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201751254U true CN201751254U (en) | 2011-02-23 |
Family
ID=43601659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202498610U Expired - Lifetime CN201751254U (en) | 2010-06-30 | 2010-06-30 | Improved structure for brake master cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201751254U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102363425A (en) * | 2011-09-24 | 2012-02-29 | 芜湖众发汽车制动系统有限公司 | Double-piston brake master cylinder with dustproof covers in double oil storage cups |
| CN102363426A (en) * | 2011-09-24 | 2012-02-29 | 芜湖众发汽车制动系统有限公司 | Double-piston brake master cylinder with front chamber oil storage cup and residual valves |
| CN102410321A (en) * | 2011-09-24 | 2012-04-11 | 芜湖众发汽车制动系统有限公司 | Two-piston brake master cylinder with stop bowls in two oil storage cups |
| CN103171542A (en) * | 2013-03-25 | 2013-06-26 | 玉环奥恒机械有限公司 | Hydraulic brake master pump structure of agricultural harvester |
| CN106715210A (en) * | 2014-09-26 | 2017-05-24 | 凯尔西-海耶斯公司 | Vehicle brake system having plunger power source |
-
2010
- 2010-06-30 CN CN2010202498610U patent/CN201751254U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102363425A (en) * | 2011-09-24 | 2012-02-29 | 芜湖众发汽车制动系统有限公司 | Double-piston brake master cylinder with dustproof covers in double oil storage cups |
| CN102363426A (en) * | 2011-09-24 | 2012-02-29 | 芜湖众发汽车制动系统有限公司 | Double-piston brake master cylinder with front chamber oil storage cup and residual valves |
| CN102410321A (en) * | 2011-09-24 | 2012-04-11 | 芜湖众发汽车制动系统有限公司 | Two-piston brake master cylinder with stop bowls in two oil storage cups |
| CN103171542A (en) * | 2013-03-25 | 2013-06-26 | 玉环奥恒机械有限公司 | Hydraulic brake master pump structure of agricultural harvester |
| CN103171542B (en) * | 2013-03-25 | 2015-09-02 | 玉环奥恒机械有限公司 | A kind of Hydraulic brake master pump structure of agricultural harvester |
| CN106715210A (en) * | 2014-09-26 | 2017-05-24 | 凯尔西-海耶斯公司 | Vehicle brake system having plunger power source |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110223 |
|
| CX01 | Expiry of patent term |