CN2787521Y - Light-load double-chamber brake valve - Google Patents
Light-load double-chamber brake valve Download PDFInfo
- Publication number
- CN2787521Y CN2787521Y CN 200420110893 CN200420110893U CN2787521Y CN 2787521 Y CN2787521 Y CN 2787521Y CN 200420110893 CN200420110893 CN 200420110893 CN 200420110893 U CN200420110893 U CN 200420110893U CN 2787521 Y CN2787521 Y CN 2787521Y
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- China
- Prior art keywords
- piston
- chamber
- ring
- upper body
- valve
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- Expired - Fee Related
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- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The utility model relates to a brake valve, particularly to a light-load double-chamber type brake valve for automobile use. which mainly improves the structures of an upper piston and a tappet in the existing brake valve, the corresponding position relations, etc. The light-load double-chamber type brake valve comprises an upper body, a lower body, an upper valve, a lower valve, an upper piston, a lower piston, etc., wherein a retaining ring is arranged between an excircle surface at the upper part of the upper piston and an inner ring surface of the upper body, and the parts between the retaining ring and the upper piston as well as the upper body are respectively provided with two sealing rings. The utility model reduces the treadling force when braking, and improves the sensibility of braking.
Description
Technical field
The utility model relates to a kind of brake activation valve, especially a kind of automobile-used light He dual-chamber brake.
Background technology
In the prior art, automobile-used brake activation valve substantially all adopts dual-chamber brake, and the foot-operated power of common brake activation valve is heavier, brakes when frequent, and pin is easy to produce tired, especially when vehicle descending or emergency situation, is prone to accidents.Realize flexible location by rubber between tappet in the existing dual-chamber brake housing and the piston, piston top uses the back-up ring that is enclosed within on the tappet to form the hermetically-sealed construction of piston and tappet, and the brake activation valve sensitivity of this kind structure is low, and braking force is big, inner rubber is aging easily, and safety is not high.Chinese patent ZL01120490.7 discloses a kind of piston for brake valve of car, piston portion to brake activation valve improves, technical scheme is: a kind of piston for brake valve of car, comprise overcoat, piston, tip-lever support, elastic, piston be positioned at overcoat and with its bearing fit, one end of piston has a columniform thin neck, and the through hole of coaxial different-diameter is arranged in piston, has flange to be stuck in the hole of pistons end in the other end outside of this pole socket; Sealed groove and displacement groove along circumference are arranged outside piston, seal ring is arranged in sealed groove; Inboard at described overcoat is fluted along circumference, and jump ring is arranged within it, and the interior edge of this jump ring is positioned at the displacement slot of piston, also has in the outside of overcoat along the groove of the circumference seal ring in extremely, and the external diameter of this overcoat matches with the internal diameter of brake activation valve valve body.This technical scheme has adopted the overcoat of a transition and interior piston thereof, has improved the area of piston end surface, and it is reduced at the suffered pressure of glancing impact, and braking effect has had improvement, but the structure more complicated, sensitivity is from being still waiting raising.
Summary of the invention
In order to design a kind of rational in infrastructure, foot-operated light He dual-chamber brake that power is little, sensitivity is high of braking, the utility model has mainly been done improvement to the structure of upper piston in the existing brake activation valve and tappet and corresponding position relation etc.The technical solution of the utility model is so to realize:
A kind of light lotus dual-chamber brake, comprise upper body (1), lower body (17), last valve (14), lower valve (21), upper piston (4), lower piston (18), brake chamber (5) in upper body (1) and upper piston (4) formation, lower body (17) forms brake chamber (19) down with lower piston (18), form between last valve (14) and upper body (1) and go up inlet chamber (6), form inlet chamber (20) down between lower valve (21) and the lower body (17), the tappet (3) of band bearing edge moves up and down by balance spring (11) drive upper piston (4) in the upper piston (4), thereby reaches braking effect, be provided with back-up ring (2) between upper piston (4) top periphery and upper body (1) inner ring surface, be respectively equipped with seal ring (10) and seal ring (9) between back-up ring (2) and upper piston (4) and upper body (1).
As preferably, tappet (3) bottom is provided with the screw (13) that limits its moving range.
As preferably, upper body (1) inner cylinder is provided with the back-up ring screens step (28) that stops back-up ring (2) to move vertically.
As preferably, upper piston (4) outer ring surface is provided with annular lip (27), and described annular lip (27) external diameter is consistent with upper body (1) internal diameter.
The utility model has improved the structure of upper piston (4), between upper piston (4) and upper body (1), be provided with the back-up ring (2) of band seal ring, adopt spring reset structure rational in infrastructure between tappet (3) and the upper piston (4), reduced the foot-operated power of glancing impact, improved the sensitivity of braking.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing,, the technical solution of the utility model is described in further detail by embodiment.
Embodiment: with reference to the accompanying drawings 1, light lotus dual-chamber brake, comprise upper body (1), lower body (17), last valve (14), lower valve (21), upper piston (4), lower piston (18), brake chamber (5) in upper body (1) and upper piston (4) formation, lower body (17) forms brake chamber (19) down with lower piston (18), form between last valve (14) and upper body (1) and go up inlet chamber (6), form inlet chamber (20) down between lower valve (21) and the lower body (17), the tappet (3) of the interior band of upper piston (4) bearing edge drives upper piston (4) by balance spring (11) and pull back spring (12) and moves up and down, action is located at the last valve (14) on the valve seat (15), thereby reaches braking effect; Be provided with back-up ring (2) between upper piston (4) top periphery and upper body (1) inner ring surface, back-up ring (2) inner headed face and periphery are provided with groove, be respectively equipped with seal ring (10) and seal ring (9) in the groove, form hermetically-sealed construction between back-up ring (2) and upper piston (4) and upper body (1); There is a flange on back-up ring (2) top, the flange internal diameter is more smaller than upper piston (4) upper-end inner diameter, be that flange portion and upper piston (4) inwall is overlapping, upper body (1) inwall is provided with dust boot (8) and hole back-up ring (7), dust boot (8) other end is connected with tappet (3), forms the external world and reaches the hermetically-sealed construction of going up brake chamber (5) with upper piston (4).
Tappet (3) structure as shown in Figure 1, its underpart is provided with the screw (13) that limits its moving range, adopt between screw (13) and the tappet (3) to be threaded, screw (13) spiral shell emits the outer to play position-limiting action, and trimming screw (13) enters tappet (3) inner distance as required.Upper body (1) inner cylinder is provided with screens step (28), stops back-up ring (2) motion down vertically.Upper piston (4) outer ring surface is provided with annular lip (27), and described annular lip (27) external diameter is consistent with upper body (1) internal diameter.
Claims (4)
1. one kind light lotus dual-chamber brake, comprise upper body (1), lower body (17), last valve (14), lower valve (21), upper piston (4), lower piston (18), brake chamber (5) in upper body (1) and upper piston (4) formation, lower body (17) forms brake chamber (19) down with lower piston (18), form between last valve (14) and upper body (1) and go up inlet chamber (6), form inlet chamber (20) down between lower valve (21) and the lower body (17), the tappet (3) of band bearing edge moves up and down by balance spring (11) drive upper piston (4) in the upper piston (4), thereby reaches braking effect, it is characterized in that being provided with back-up ring (2) between described upper piston (4) top periphery and upper body (1) inner ring surface, be respectively equipped with seal ring (10) and seal ring (9) between back-up ring (2) and upper piston (4) and upper body (1).
2. a kind of light lotus dual-chamber brake according to claim 1 is characterized in that described tappet (3) bottom is provided with the screw (13) that limits its moving range.
3. a kind of light lotus dual-chamber brake according to claim 1 is characterized in that described upper body (1) inner cylinder is provided with the back-up ring screens step (28) that stops back-up ring (2) to move vertically.
4. a kind of light lotus dual-chamber brake according to claim 1 and 2 is characterized in that described upper piston (4) outer ring surface is provided with annular lip (27), and described annular lip (27) external diameter is consistent with upper body (1) internal diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420110893 CN2787521Y (en) | 2004-12-06 | 2004-12-06 | Light-load double-chamber brake valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420110893 CN2787521Y (en) | 2004-12-06 | 2004-12-06 | Light-load double-chamber brake valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2787521Y true CN2787521Y (en) | 2006-06-14 |
Family
ID=36785812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420110893 Expired - Fee Related CN2787521Y (en) | 2004-12-06 | 2004-12-06 | Light-load double-chamber brake valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2787521Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101837774A (en) * | 2010-05-31 | 2010-09-22 | 河南昌通科技有限公司 | Two-stage cadence braking master valve (type V) |
| CN101857018A (en) * | 2010-05-18 | 2010-10-13 | 河南昌通科技有限公司 | Two-stage foot braking master valve |
| CN101857019A (en) * | 2010-05-18 | 2010-10-13 | 河南昌通科技有限公司 | Two-stage stab-braking double-cavity parallel arrangement type brake master valve |
| CN107399311A (en) * | 2017-05-24 | 2017-11-28 | 浙江万安科技股份有限公司 | A kind of limiting mechanism of pressure and electric-controlled type air brake valve assembly |
| CN113280126A (en) * | 2021-05-12 | 2021-08-20 | 十堰市华迪汽车零部件有限公司 | Novel air dryer series exhaust valve for vehicle |
-
2004
- 2004-12-06 CN CN 200420110893 patent/CN2787521Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101857018A (en) * | 2010-05-18 | 2010-10-13 | 河南昌通科技有限公司 | Two-stage foot braking master valve |
| CN101857019A (en) * | 2010-05-18 | 2010-10-13 | 河南昌通科技有限公司 | Two-stage stab-braking double-cavity parallel arrangement type brake master valve |
| CN101857018B (en) * | 2010-05-18 | 2011-09-14 | 河南昌通科技有限公司 | Two-stage foot braking master valve |
| CN101837774A (en) * | 2010-05-31 | 2010-09-22 | 河南昌通科技有限公司 | Two-stage cadence braking master valve (type V) |
| CN101837774B (en) * | 2010-05-31 | 2013-06-05 | 昌通科技有限公司 | Two-stage cadence braking master valve (type V) |
| CN107399311A (en) * | 2017-05-24 | 2017-11-28 | 浙江万安科技股份有限公司 | A kind of limiting mechanism of pressure and electric-controlled type air brake valve assembly |
| CN107399311B (en) * | 2017-05-24 | 2023-08-08 | 浙江万安科技股份有限公司 | Pressure limiting mechanism and electric control type air brake valve assembly |
| CN113280126A (en) * | 2021-05-12 | 2021-08-20 | 十堰市华迪汽车零部件有限公司 | Novel air dryer series exhaust valve for vehicle |
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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: 20060614 Termination date: 20131206 |