CN102358279B - Seeper-proof trailer brake valve - Google Patents
Seeper-proof trailer brake valve Download PDFInfo
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- CN102358279B CN102358279B CN 201110257018 CN201110257018A CN102358279B CN 102358279 B CN102358279 B CN 102358279B CN 201110257018 CN201110257018 CN 201110257018 CN 201110257018 A CN201110257018 A CN 201110257018A CN 102358279 B CN102358279 B CN 102358279B
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Abstract
The invention belongs to the field of brake valves, and more particularly relates to a seeper-proof trailer brake valve, which comprises a valve cover and a valve body, wherein a drainage device is connected to an air intake and exhaust control port; the drainage device comprises a shell, a reset spring and a piston body moving along the inner wall of the shell; the front end of the shell is provided with a braking air inlet; the lateral wall of the shell is provided with an exhaust port and a braking valve communicating port; the braking valve communicating port is closely connected with the air intake and exhaust control port; the piston body and the reset spring are positioned in the shell; the reset spring is fixed at the tail end of the shell; the diameter of the middle section of the piston body is less than the diameters of two ends of the piston body; and the piston body, the lateral wall of the shell and the braking valve communicating port and the exhaust port on the lateral wall of the shell jointly form an air guide channel. By arranging the drainage device at the air intake and exhaust control port of the trailer brake valve, seeper in the brake valve can be automatically drained to ensure safe and convenient running of vehicles; and because a heating device is arranged on the valve body, the brake valve can be ensured not to generate ice barrier in cold winter through heating.
Description
Technical field
The present invention relates to a kind of anti-ponding trailer braking valve, belong to the brake activation valve field.
Background technology
Along with the development of Domestic Automotive Industry, long-distance vehicle becomes development tendency in recent years, especially partly pulls automobile and occupies most of freight market.Semitrailer vehicles mostly adopts the braking of Pneumatic brake valve control vehicle, because the traditional braking valve adopts enclosed construction, there is for a long time inner product water problems in the brake activation valve use procedure always, need irregularly brake activation valve to be taken apart the inner ponding of removing, bring inconvenience to vehicle operating, ponding froze and causes vehicle to move when particularly temperature was low in the winter time.
Summary of the invention
According to above deficiency of the prior art, the technical problem to be solved in the present invention is: a kind of anti-ponding trailer braking valve that can automatically discharge the brake activation valve internal water accumulation, guarantee the convenient operation of vehicle safety is provided.
The technical solution adopted for the present invention to solve the technical problems is: described anti-ponding trailer braking valve, comprise valve gap and valve body, it is characterized in that: the control intake and exhaust port of valve gap connects freeing arrangement, freeing arrangement is by shell, retracing spring and the piston body formation that moves along outer casing inner wall, the front end of shell is provided with the brake gas import, sidewall is provided with exhausr port and brake activation valve connected entrance, the brake activation valve connected entrance closely links to each other with control intake and exhaust port, piston body and retracing spring are arranged in shell, retracing spring is fixed on the shell end, the diameter in piston body stage casing is less than the diameter at its two ends, piston body, brake activation valve connected entrance and exhausr port on side wall of outer shell and the sidewall form air guide channel jointly.
Described shell is combined by front end shell and terminal end cap, and retracing spring is installed on the end cap.By adopting split-type structural, can make things convenient for installation and the replacing of retracing spring.
Described valve body is provided with heating arrangement, and the heating arrangement startup is heated the brake activation valve valve body in the lower situation of temperature, and it is stifled to guarantee that brake activation valve can not produce ice in the winter of cold, makes the vehicle trouble-free operation.
Described heating arrangement is heating jacket, and heating jacket is arranged on the valve body periphery, thereby can guarantee the valve body thermally equivalent.
The specific works process is as follows:
1, when not braking, the piston body in the freeing arrangement arrives cover top portion under the effect of internal reset spring force, because the air guide effect of air guide channel makes the control intake and exhaust port of brake activation valve directly communicate with outside atmosphere, is conducive to distributing of moisture.
2, under the needs brake condition, brake gas pushing piston body with the exhausr port sealing of freeing arrangement, imports brake gas the control intake and exhaust port of trailer braking valve to the shell end movement simultaneously, and pressurized air is sent into trailer braking valve.
Because intake pressure reduces gradually, this moment, piston body return under the effect of retracing spring elastic force of freeing arrangement inside was discharged the residual gas of brake activation valve inside from the exhausr port of freeing arrangement, if exist ponding also can discharge from here in the lump when decontroling braking.
The beneficial effect that the present invention has is:
By the control intake and exhaust port at trailer braking valve freeing arrangement is installed, can be guaranteed that under the brakeless state brake activation valve communicates with the external world, reduced the cohesion of aqueous vapor; In the braking and releasing braking procedure of brake activation valve, freeing arrangement can be discharged residual gas and the inner ponding of brake activation valve inside automatically, need not to take apart brake activation valve and just can realize the removing to brake activation valve inside ponding, prevent that the ponding of brake activation valve froze when winter temperature was low, guarantee the safe ready operation of vehicle; Heating arrangement is installed on the valve body, and it is stifled to guarantee that brake activation valve can not produce ice in the winter of cold by heating.
Description of drawings
Fig. 1 is structural representation of the present invention under the non-braking mode;
Fig. 2 is structural representation of the present invention under the braking mode.
Among the figure: 1, brake gas import; 2, front end shell; 3, piston body; 4, brake activation valve connected entrance; 5, air guide channel; 6, exhausr port; 7, retracing spring; 8, end cap; 9, valve body; 10, heating jacket; 11, valve gap; 12, control intake and exhaust port.
The specific embodiment
Below in conjunction with accompanying drawing embodiments of the invention are described further:
Such as Fig. 1, shown in 2, the trailer braking valve freeing arrangement, comprise valve gap 11 and valve body 9, control intake and exhaust port one 2 places of valve gap 11 connect freeing arrangement, freeing arrangement is by shell, retracing spring 7 and piston body 3 formations that move along outer casing inner wall, shell is combined by front end shell 1 and terminal end cap 8, piston body 3 and retracing spring 7 are arranged in shell, retracing spring 7 is fixed on the end cap 8, the diameter in piston body stage casing is less than the diameter at its two ends, the front end of shell is provided with brake gas import 1, sidewall is provided with exhausr port 6 and brake activation valve connected entrance 4, brake activation valve connected entrance 4 closely links to each other piston body 3 with control intake and exhaust port one 2, brake activation valve connected entrance 4 on side wall of outer shell and the sidewall and the exhausr port 6 common air guide channels 5 that form, the valve body 9 outer heating jackets 10 that are arranged with.
The specific works process is as follows:
When not having the free state of braking maneuver, as shown in Figure 1, piston body 3 in the freeing arrangement arrives cover top portion under the effect of internal reset spring 7 elastic force, the air guide channel 5 that the trailer braking valve internal direct was connected freeing arrangement communicated with extraneous the maintenance, was conducive to distributing of moisture.
When needing braking, brake gas enters freeing arrangement and pushing piston body 3 to the shell end movement from brake gas import 1, with exhausr port 6 sealings of freeing arrangement, simultaneously brake gas is imported the control intake and exhaust port one 2 of trailer braking valve, pressurized air is sent into trailer braking valve.
When decontroling braking, because intake pressure reduces gradually, this moment, piston body 3 return under the effect of retracing spring 7 elastic force of freeing arrangement inside was discharged the residual gas of trailer braking valve inside from the exhausr port 6 of freeing arrangement, if exist ponding also can discharge from here in the lump.Like this, need not to take apart brake activation valve and just can realize the removing to brake activation valve inside ponding, prevent that the ponding of brake activation valve froze when winter temperature was low, guarantee the safe ready operation of vehicle.
In addition, the heating jacket 10 of valve body 9 peripheries can guarantee that brake activation valve can not produce ice in the winter of cold and block up by heating.
Claims (4)
1. anti-ponding trailer braking valve, comprise valve gap and valve body, it is characterized in that: the control intake and exhaust port of valve gap connects freeing arrangement, freeing arrangement is by shell, retracing spring and the piston body formation that moves along outer casing inner wall, the front end of shell is provided with the brake gas import, sidewall is provided with exhausr port and brake activation valve connected entrance, the brake activation valve connected entrance closely links to each other with control intake and exhaust port, piston body and retracing spring are arranged in shell, retracing spring is fixed on the shell end, the diameter in piston body stage casing is less than the diameter at its two ends, piston body, brake activation valve connected entrance and exhausr port on side wall of outer shell and the sidewall form air guide channel jointly.
2. anti-ponding trailer braking valve according to claim 1 is characterized in that: described shell is combined by front end shell and terminal end cap, and retracing spring is installed on the end cap.
3. anti-ponding trailer braking valve according to claim 1 and 2, it is characterized in that: described valve body is provided with heating arrangement.
4. anti-ponding trailer braking valve according to claim 3, it is characterized in that: described heating arrangement is heating jacket, and heating jacket is arranged on the valve body periphery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110257018 CN102358279B (en) | 2011-09-01 | 2011-09-01 | Seeper-proof trailer brake valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110257018 CN102358279B (en) | 2011-09-01 | 2011-09-01 | Seeper-proof trailer brake valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102358279A CN102358279A (en) | 2012-02-22 |
| CN102358279B true CN102358279B (en) | 2013-05-29 |
Family
ID=45583676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110257018 Expired - Fee Related CN102358279B (en) | 2011-09-01 | 2011-09-01 | Seeper-proof trailer brake valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102358279B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102616230B (en) * | 2012-04-06 | 2015-04-22 | 王福祥 | Upper cover of air-brake brake valve |
| CN103342123B (en) * | 2013-07-08 | 2016-02-03 | 李旭 | Draining synchronous relay valve |
| CN113357347A (en) * | 2021-07-22 | 2021-09-07 | 中车青岛四方机车车辆股份有限公司 | Exhaust device and rail vehicle |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2193289Y (en) * | 1994-05-13 | 1995-03-29 | 杨志洪 | Automotive pressure limit discharging valve |
| US5941271A (en) * | 1997-02-04 | 1999-08-24 | Chovan; Dale | Water release valve |
| CN2934366Y (en) * | 2005-12-28 | 2007-08-15 | 徐州工程机械科技股份有限公司徐工研究院 | Automatic drainer for loading machine braking system |
| GB2467958A (en) * | 2009-02-21 | 2010-08-25 | Haldex Brake Products Ltd | Brake modulator valve having water exclusion valve |
| CN202294781U (en) * | 2011-09-01 | 2012-07-04 | 李旭 | Trailer braking valve avoiding accumulated water |
-
2011
- 2011-09-01 CN CN 201110257018 patent/CN102358279B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN102358279A (en) | 2012-02-22 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130529 Termination date: 20170901 |
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| CF01 | Termination of patent right due to non-payment of annual fee |