CN201049625Y - Two-chamber brake valve - Google Patents
Two-chamber brake valve Download PDFInfo
- Publication number
- CN201049625Y CN201049625Y CNU2007201492865U CN200720149286U CN201049625Y CN 201049625 Y CN201049625 Y CN 201049625Y CN U2007201492865 U CNU2007201492865 U CN U2007201492865U CN 200720149286 U CN200720149286 U CN 200720149286U CN 201049625 Y CN201049625 Y CN 201049625Y
- Authority
- CN
- China
- Prior art keywords
- piston
- lower body
- dual
- valve
- chamber brake
- 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
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The utility model is restructured from a duplex-cavity brake valve to improve the brake performance stability and reliability. The utility model comprises an upper body, a valve assembly and a lower body, wherein the upper body is provided with an upper piston, a push rod and a dust helmet and the lower body is provided with a middle piston. An eyelet into which the upper piston is sheathed is added inside the main hole of the upper body. Strengthening guide bars are added to the heads of the upper and the middle pistons as well as the eyelets of the upper and the lower bodies. The strengthening guide bars are tightly matched with nylon guide sleeves. Spiral filter screens are added to the inner sides of the inlet connecting ports of the upper and the lower bodies. The lower end of the upper piston is 39mm in diameter, and the lower end 57mm. The structural improvement of the utility model improves the proper alignment of the movement of the pistons of the valve assembly and the stability and the service life of the whole structure.
Description
Technical field:
The utility model belongs to locomotive brake parts technical field, particularly a kind of dual-chamber brake that improves structure.
Background technology:
Dual-chamber brake is substantially all adopted in automobile-used braking, and the foot-operated power of common brake activation valve is heavier, brakes when frequent, and pin is easy to produce tired, especially is prone to accidents when vehicle descending or emergency situation.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, the brake activation valve sensitivity of this kind structure is low, braking force is big, inner rubber is aging easily, and safety and stability are 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, braking effect has had improvement, but structure more complicated, sensitivity are still waiting to improve, and its stability does not obtain the essence raising.
The utility model content:
The technical problems to be solved in the utility model is that improvement has the structure of dual-chamber brake now, improves the reliability of its deceleration and stopping performance.
The technical solution adopted in the utility model is: a kind of dual-chamber brake, comprise upper body, valve assembly and lower body, be provided with upper piston, ram seat and dust boot in the upper body, lower body has middle piston, increased aperture in the main aperture in the main aperture of upper body, upper piston is sheathed in it.
The piston crown of described upper piston, middle piston has additional the reinforcement guiding rib, and the aperture place of upper and lower body has additional the reinforcement guiding rib.
The valve rubber of described valve assembly closely is arranged with the nylon orienting sleeve outward, and corresponding upper and lower body inboard is provided with the guiding reinforced rib, and itself and nylon guide closely cooperate to cover.
Have additional the spiral filtering net in the air inlet communication port of described upper and lower body.
Described upper piston lower end diameter is 39 millimeters, and upper end diameter is 57 millimeters.
The beneficial effects of the utility model are: the upper body main aperture is set up aperture, itself and upper piston lower end form long bearing fit, the coaxial piston motion that is obtains reliable guarantee, and structure is existing to existing two-chamber valve, and structure is compact more, has realized further the dwindling of lower end diameter of upper piston on this basis, reach 39 millimeters, reach 18 millimeters with the diameter difference of upper end, reduce piston area of thrust surface 53%, alleviate treadle effort during use more than 50%.The piston crown of upper piston, middle piston has additional the reinforcement guiding rib, the aperture place of last lower body has additional the reinforcement guiding rib, it cooperatively interacts, increase the intensity of piston head on the one hand, it is stable, concentric to make piston head cooperate with the valve seal line on the other hand, prevented that effectively pedal push rod wearing and tearing back is eccentric, and piston head is because the then big gas leak phenomenon that causes in the gap that wearing and tearing cause, prolonged brake activation valve single-piece service life; The valve rubber of valve assembly closely is arranged with the nylon orienting sleeve outward, corresponding upper and lower body inboard is provided with the guiding reinforced rib, and itself and nylon guide closely cooperate to cover, have guaranteed the sealing property of valve body, improve the service life of rubber ring, the intensity of nylon is withstanding corrosion, anti abrasive material in valve the time.It is provided with the guiding reinforced rib with the upper and lower body inboard and cooperates, improves the piston motion proper alignment of valve assembly and integrally-built stable, avoids causing the motion decentraction owing to wear and tear, even the major failure of braking failure occurs.Have additional the spiral filtering net, stoped particles such as the heavy dust of automobile pipeline, impurity to enter valve inner, the sealing surface of valve is kept clean, guarantee sealing property to prevent the valve hair fastener.
Description of drawings:
Fig. 1 is a structural representation of the present utility model.
Among the figure: 1, upper body; 2, valve assembly; 3, lower body; 4, upper piston; 5, middle piston; 6, ram seat; 7, dust boot; 8, air inlet communication port; 9, spiral filtering net; 11, aperture in the main aperture; 12, strengthen guiding rib; 13, guiding reinforced rib; 21, valve rubber; 22, nylon orienting sleeve; 31, strengthen guiding rib; 32, guiding reinforced rib.
The specific embodiment:
The utility model provides a kind of dual-chamber brake, in structural representation shown in Figure 1, dual-chamber brake comprises upper body 1, valve assembly 2 and lower body 3, be provided with upper piston 4, ram seat 6 and dust boot 7 in the upper body, lower body 3 has middle piston 5, in 1 main aperture of upper body, increase, aperture 11 in the main aperture, upper piston 4 is sheathed in it.The piston crown of upper piston 4, middle piston 5 has additional strengthens guiding rib 41,51, and the aperture place of upper and lower body has additional and strengthens guiding rib 12,31.The valve rubber 21 outer nylon orienting sleeves 22 that closely are arranged with of valve assembly 2, corresponding upper and lower body inboard is provided with guiding reinforced rib 13,32, and itself and nylon orienting sleeve 22 closely cooperate.Have additional spiral filtering net 9 in the air inlet communication port 8 of upper and lower body.Upper piston 4 lower end diameter are 39 millimeters, and upper end diameter is 57 millimeters.
Claims (5)
1. dual-chamber brake, comprise upper body (1), valve assembly (2) and lower body (3), be provided with upper piston (4), ram seat (6) and dust boot (7) in the upper body, lower body (3) has middle piston (5), it is characterized in that: increased aperture in the main aperture (11) in the main aperture of upper body (1), upper piston (4) is sheathed in it.
2. dual-chamber brake according to claim 1 is characterized in that: the piston crown of described upper piston (4), middle piston (5) has additional strengthens guiding rib (41,51), and the aperture place of upper and lower body has additional and strengthens guiding rib (12,31).
3. dual-chamber brake according to claim 1 and 2, it is characterized in that: the outer nylon orienting sleeve (22) that closely is arranged with of the valve rubber (21) of described valve assembly (2), corresponding upper and lower body inboard is provided with guiding reinforced rib (13,32), and itself and nylon orienting sleeve (22) closely cooperate.
4. dual-chamber brake according to claim 1 and 2 is characterized in that: have additional spiral filtering net (9) in the air inlet communication port (8) of described upper and lower body.
5. dual-chamber brake according to claim 1 and 2 is characterized in that: described upper piston (4) lower end diameter is 39 millimeters, and upper end diameter is 57 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201492865U CN201049625Y (en) | 2007-05-24 | 2007-05-24 | Two-chamber brake valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201492865U CN201049625Y (en) | 2007-05-24 | 2007-05-24 | Two-chamber brake valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201049625Y true CN201049625Y (en) | 2008-04-23 |
Family
ID=39336103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201492865U Expired - Fee Related CN201049625Y (en) | 2007-05-24 | 2007-05-24 | Two-chamber brake valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201049625Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103754198A (en) * | 2013-12-27 | 2014-04-30 | 芜湖盛力科技股份有限公司 | Single-cavity piston type air brake valve for commercial vehicle diesel engine brake system |
| CN104192134A (en) * | 2014-08-28 | 2014-12-10 | 陈仲明 | Four-gear output air pressure trailer brake valve |
| CN104386055A (en) * | 2014-11-10 | 2015-03-04 | 昌通科技有限公司 | Main braking valve with decelerating and filtering screen for Jianghuan vehicles |
-
2007
- 2007-05-24 CN CNU2007201492865U patent/CN201049625Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103754198A (en) * | 2013-12-27 | 2014-04-30 | 芜湖盛力科技股份有限公司 | Single-cavity piston type air brake valve for commercial vehicle diesel engine brake system |
| CN103754198B (en) * | 2013-12-27 | 2016-08-17 | 芜湖盛力科技股份有限公司 | Braking system of diesel engine of commercial vehicle single-chamber Piston Pneumatic Brake Valve |
| CN104192134A (en) * | 2014-08-28 | 2014-12-10 | 陈仲明 | Four-gear output air pressure trailer brake valve |
| CN104386055A (en) * | 2014-11-10 | 2015-03-04 | 昌通科技有限公司 | Main braking valve with decelerating and filtering screen for Jianghuan vehicles |
| CN104386055B (en) * | 2014-11-10 | 2016-10-05 | 昌通科技有限公司 | Carry the slow and main brake valve of drainage screen |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201049625Y (en) | Two-chamber brake valve | |
| CN102862564B (en) | Automobile anti-ineffectiveness brake system | |
| CN102336187B (en) | Hand brake valve of rubber-tire vehicle | |
| CN100436214C (en) | Two-stage electromagnetic booster braking general pump of three-inlet and multi-exit | |
| CN202669790U (en) | Fast-insertion and fast-release valve | |
| CN2787521Y (en) | Light-load double-chamber brake valve | |
| CN203427777U (en) | Vacuum check valve assembly | |
| CN201882071U (en) | Rubber diaphragm of automobile vacuum booster | |
| CN202541514U (en) | One-way valve for automobile hydraulic-brake vacuum booster system | |
| CN202215644U (en) | Drum brake wheel cylinder used for automobile hydraulic braking | |
| CN202827555U (en) | Car vacuum brake auxiliary device | |
| CN202593216U (en) | Altitude valve | |
| CN201916014U (en) | Operating cylinder of exhaust brake valve of automobile engine | |
| CN201891774U (en) | Wheel brake cylinder assembly | |
| CN201405841Y (en) | Hydraulic braking force distribution control valve | |
| CN202169941U (en) | Internal breathing valve for spring braking air chamber | |
| CN201891775U (en) | Wheel cylinder assembly | |
| CN105952624A (en) | Air outlet end cover assembly of electric vacuum pump for diaphragm type automobile | |
| CN207225338U (en) | EGR Delay Valve | |
| CN200985023Y (en) | Hand-control valve | |
| CN202283915U (en) | Hand braking valve | |
| CN205277734U (en) | Automatic sealed plunger pump of follow -up | |
| CN204821541U (en) | Parallel two -chamber braking main valve | |
| CN210101613U (en) | Exhaust joint with filtering capability | |
| CN216812130U (en) | Plunger pump |
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: 20080423 Termination date: 20120524 |