CN106314411A - Automobile relay valve - Google Patents
Automobile relay valve Download PDFInfo
- Publication number
- CN106314411A CN106314411A CN201610483540.9A CN201610483540A CN106314411A CN 106314411 A CN106314411 A CN 106314411A CN 201610483540 A CN201610483540 A CN 201610483540A CN 106314411 A CN106314411 A CN 106314411A
- Authority
- CN
- China
- Prior art keywords
- valve body
- filter screen
- air inlet
- relay
- piston assembly
- 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
Links
- 239000000428 dust Substances 0.000 abstract description 8
- 239000012535 impurity Substances 0.000 description 5
- 239000010985 leather Substances 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- -1 steam Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T15/00—Construction arrangement, or operation of valves incorporated in power brake systems and not covered by groups B60T11/00 or B60T13/00
- B60T15/02—Application and release valves
- B60T15/18—Triple or other relay valves which allow step-wise application or release and which are actuated by brake-pipe pressure variation to connect brake cylinders or equivalent to compressed air or vacuum source or atmosphere
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The invention relates to an automobile braking system, and particularly discloses an automobile relay valve. The automobile relay valve comprises an upper valve body and a lower valve body, wherein the lower valve body is provided with an air inlet, an air outlet and a valve body chamber; a relay piston chamber is arranged between the upper valve body and the lower valve body; an air inlet hole communicates with the valve body chamber; the valve body chamber communicates with the relay piston chamber; a piston assembly is arranged in the valve body chamber; a filter screen is arranged in the lower valve body; the filter screen is in a tube shape; the piston assembly is wrapped in the filter screen. The automobile relay valve disclosed by the invention has the advantages that particulate matters such as dust can be effectively prevented from entering the valve body. Compared with the condition of installing the filter screen at the air inlet part, the effective area of the filter screen is increased; the risk of filter screen blockage is reduced; meanwhile, the filter screen is arranged at the outer side of the piston assembly; the airflow circulation area in the air inlet is also increased; the air inlet blockage by dust is prevented; the air inlet smoothness and the airflow stability in the air inlet are ensured.
Description
Technical field
The present invention relates to brake system of car, especially Car Relay Valve.
Background technology
Automobile is in use, moisture in the steam of air compressor machine work generation and air enters inside relevant valve body assembly with dust granules, affect all parts in air braking system, time produces a large amount of impurity and corrosion material etc. for a long time afterwards, thus affect car load line clear degree, affect braking performance of vehicle under serious conditions.
The Chinese invention patent of Patent No. ZL200720311691.2 discloses a kind of controlled brake relay valve, this controlled brake relay valve is provided with filter screen at air inlet, it is effectively reduced the impurity such as steam, dust and enters valve inner, improve the cleannes of car load pipeline.But owing at air inlet, passage is the least, the effective area of filter screen is the least, when more rugged environment uses, it is more likely that there will be filter screen part or all block, the air-flow making air inlet is unstable, thus causes the serious conditions such as brake lag, brake force deficiency；And due to the narrow space between air inlet to filter screen, filter screen assembly difficulty when mounted is the biggest.
Summary of the invention
It is an object of the invention to provide one and while impurity, do not interfere with the patency of air inlet, it is ensured that follow-up system reliably uses the Car Relay Valve of gas, and this Car Relay Valve also has advantage easy to assembly in effective removal air inlet.
For achieving the above object, the present invention adopts the following technical scheme that Car Relay Valve, including upper valve body and lower valve body, described lower valve body is provided with air inlet, gas outlet and valve body room, it is provided with relay piston room between described upper valve body and lower valve body, described air inlet connects with valve body room, and described valve body room connects with relay piston room, and described valve body indoor are provided with piston assembly；Described valve body indoor are provided with filter screen, and described filter screen is tubular and piston assembly is wrapped in filter screen.
As preferably, between described filter screen and piston assembly, it is provided with limited step.
As preferably, described upper valve body and lower valve body are bolted, and connect reliable, convenient disassembly.
As preferably, described lower valve body is provided with air vent.
Use above technical scheme obtain following beneficial effect:
1. filter screen being arranged on valve body indoor, air-flow enters valve body room through drainage screen, and dust-like particulate matter can be filtered by filter screen effectively, it is ensured that the cleannes in valve body；
2., relative to filter screen being arranged on the mode at air inlet, filter screen being arranged on valve body indoor, increasing the effective area of filter screen, reduce the risk of filter net jam；
3. filter screen is arranged on valve body indoor, be arranged at air inlet with by filter screen compared with, air inlet does not affect the obstruction thing of gas circulation, it is ensured that the patency of air-flow and stability in air inlet, it is ensured that the stability of relay valve work；
4. limited step is set between filter screen and piston assembly, can effectively prevent filter screen from the situation such as deformation, dislocation occurring:
5. the valve body interior space is relatively big, more convenient at valve body indoor location filter screen.
Accompanying drawing explanation
Illustrate for accompanying drawing below:
Fig. 1 is the structural representation of first embodiment of the invention Car Relay Valve；
Fig. 2 is the structural representation of second embodiment of the invention Car Relay Valve；
Fig. 3 is the partial enlarged drawing of valve body room in first embodiment of the invention Car Relay Valve；
Fig. 4 is the partial enlarged drawing of valve body room in second embodiment of the invention Car Relay Valve.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Embodiment one
As it is shown in figure 1, Car Relay Valve, including upper valve body 1, lower valve body 8 and relay piston 11, described lower valve body 8 is provided with air inlet 3 and gas outlet 9, is provided with piston assembly between described air inlet 3 and gas outlet 9；Described upper valve body 1 is provided with control mouth 2, is provided with filter screen 4 in described valve body room 7, and described filter screen 4 is in tubular and part piston assembly is wrapped in filter screen 4；It is provided with limited step 14 between described filter screen 4 and piston assembly；Described lower valve body 8 is provided with valve body room 7 and relay piston room 10, and described valve body room 7 connects with relay piston room 10；Described air inlet 3 connects with valve body room 7, and described gas outlet 9 connects with relay piston room 10；Gas enters from air inlet 3, through valve body room 7, be positioned at valve body room 7 filter screen 4 and relay piston room 10, flow out from gas outlet 9；Described upper valve body 1 and lower valve body 8 are bolted, and connect reliable, convenient disassembly；Described lower valve body 8 is provided with air vent 5, and described piston assembly includes that spring 6 and piston, described spring 6 one end are connected with piston, and the other end is connected with lower valve body 8；Described control mouth 2 includes that the first control mouth 25 and second controls mouth 21, it is provided with inlet suction port 24 in the first described control mouth 25, the first described control mouth 25 and second controls to be provided with control air chamber 23 between mouth 21, and described control air chamber 23 connects with relay piston 11；The first described control mouth 25 and second controls to be provided with diaphragm 26 between mouth 21, and described diaphragm 26 controls mouth 25 and second first and controls to move left and right between mouth 21；The second described control mouth 21 is provided with cover plate 22, and described cover plate 22 one end is fixing with upper valve body 1 to be connected, and the setting of dual control donsole eliminates two-way valve, simple in construction, reduces production cost.
The air inlet 3 of Car Relay Valve is connected with air pump, gas entrance valve body through overcompression, through valve body room 7, it is positioned at filter screen 4 and the relay piston room 10 of valve body room 7, flow out from gas outlet 9, gas outlet 9 connects brake chamber, controlling mouth 2 and connect brake valve, the output pressure of brake valve is as the control air pressure of relay valve；Giving vent to anger the problem containing the impurity such as steam and dust for air pump, piston assembly is trapped among in cylindrical filter screen 4, i.e. arranges defecator between piston assembly and air inlet 3 by the present invention, effectively blocks the particulate matters such as dust and enters in valve body；Relative to filter screen 4 being arranged on the situation at air inlet 3, filter screen 4 being arranged at piston assembly, increasing the effective area of filter screen 4, reduce the risk of dust blocking filter screen 4 hole；The outside that filter screen 4 is arranged on piston assembly simultaneously also increases the space between air inlet 3 to filter screen 4, prevents dust from blocking air inlet 3, it is ensured that air inlet is unobstructed；Limited step 14 is set between filter screen 4 and piston assembly, can effectively prevent filter screen 4 from the problems such as deformation, dislocation occurring.Through substantial amounts of practical proof, show to be arranged on filter screen valve body is indoor be arranged at air inlet with by filter screen compared with, the fault rate of 80% ~ 90% can be reduced.
Embodiment two
Car Relay Valve as shown in Figure 2, the difference with embodiment one is, described piston assembly includes spring 6, spring base and leather cup 13, and described leather cup 13 is ringwise；Described spring 6 one end is connected on spring base, the other end is connected with leather cup 13, described lower valve body 8 also includes valve seat 12, under naturalness, leather cup 13 is in sealing contact with valve seat 12 under spring 6 acts on, and described control mouth 2 is provided with two-way valve, the diaphragm that alternative embodiment is a kind of, it is provided with sealing ring between described valve seat 12 and lower valve body 8, uses check valve to replace diaphragm structure, more reliable performance.
Above-described Car Relay Valve, decreases steam and the impurity entering valve body, greatly reduces the fault rate of gas circuit, extend the service life of valve body.
In a word, the foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all any amendment, equivalent and improvement etc. made within the spirit and principles in the present invention, should be included within the scope of the present invention.
Claims (4)
1. Car Relay Valve, including upper valve body (1) and lower valve body (8), described lower valve body (8) is provided with air inlet (3), gas outlet (9) and valve body room (7), it is provided with relay piston room (10) between described lower valve body (8) and upper valve body (1), described air inlet (3) connects with valve body room (7), described valve body room (7) connects with relay piston room (10), it is provided with piston assembly in described valve body room (7), it is characterized in that: in described lower valve body (8), be provided with filter screen (4), described filter screen (4) is wrapped in tubular and by piston assembly in filter screen (4).
Car Relay Valve the most according to claim 1, it is characterised in that: it is provided with limited step (14) between described filter screen (4) and piston assembly.
Car Relay Valve the most according to claim 1 and 2, it is characterised in that: described upper valve body (1) and lower valve body (8) are bolted.
Car Relay Valve the most according to claim 3, it is characterised in that: described lower valve body (8) is provided with air vent (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610483540.9A CN106314411A (en) | 2016-06-28 | 2016-06-28 | Automobile relay valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610483540.9A CN106314411A (en) | 2016-06-28 | 2016-06-28 | Automobile relay valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106314411A true CN106314411A (en) | 2017-01-11 |
Family
ID=57726349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610483540.9A Pending CN106314411A (en) | 2016-06-28 | 2016-06-28 | Automobile relay valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106314411A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101266017A (en) * | 2007-12-29 | 2008-09-17 | 甘肃红峰机械有限责任公司 | Float ball guided piston type steam bleeder |
| CN201154700Y (en) * | 2007-12-13 | 2008-11-26 | 傅树苗 | Controlled brake relay valve |
| CN201842084U (en) * | 2010-08-06 | 2011-05-25 | 李玉喜 | Wet pneumatic-control master valve |
| CN205086903U (en) * | 2015-11-04 | 2016-03-16 | 谢洪川 | Filtration that admits air of valve body for car |
| CN205706655U (en) * | 2016-06-28 | 2016-11-23 | 浙江万安科技股份有限公司 | A kind of Car Relay Valve assembly |
-
2016
- 2016-06-28 CN CN201610483540.9A patent/CN106314411A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201154700Y (en) * | 2007-12-13 | 2008-11-26 | 傅树苗 | Controlled brake relay valve |
| CN101266017A (en) * | 2007-12-29 | 2008-09-17 | 甘肃红峰机械有限责任公司 | Float ball guided piston type steam bleeder |
| CN201842084U (en) * | 2010-08-06 | 2011-05-25 | 李玉喜 | Wet pneumatic-control master valve |
| CN205086903U (en) * | 2015-11-04 | 2016-03-16 | 谢洪川 | Filtration that admits air of valve body for car |
| CN205706655U (en) * | 2016-06-28 | 2016-11-23 | 浙江万安科技股份有限公司 | A kind of Car Relay Valve assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170111 |
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| RJ01 | Rejection of invention patent application after publication |