CN201646699U - Parallel pedal type pneumatic control main valve - Google Patents
Parallel pedal type pneumatic control main valve Download PDFInfo
- Publication number
- CN201646699U CN201646699U CN2010201848941U CN201020184894U CN201646699U CN 201646699 U CN201646699 U CN 201646699U CN 2010201848941 U CN2010201848941 U CN 2010201848941U CN 201020184894 U CN201020184894 U CN 201020184894U CN 201646699 U CN201646699 U CN 201646699U
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- China
- Prior art keywords
- valve
- wheel control
- pedal
- control cock
- control valve
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Abstract
The utility model discloses a parallel pedal type pneumatic control main valve, which consists of an upper cover plate, a main case, a lower cover plate, a seal ring, a pedal and a pedal bracket, wherein a front wheel control valve and a rear wheel control valve are arranged in the main case in parallel; mandril type valve cores are respectively arranged in the front wheel control valve and the rear wheel control valve; return springs are arranged on the mandril type valve cores; the mandril type valve cores of the front wheel control valve and the rear wheel control valve extend out of the same lateral surface and are connected by a connecting plate; and groove pulleys are arranged on a pedal and pressed on the connecting plate. Each mandril type valve core is provided with three ventilating holes for adjusting the air pressure. The utility model has the beneficial effects of realization of braking technology improvement on the pneumatic brake main valve, simple structure, reduction on the manufacturing cost and service life which is 3 times that of a cascade dual-cavity piston type pneumatic brake main valve.
Description
Technical field:
The utility model belongs to the brake valve of car technical field, is specifically related to a kind of pedal type air operated control main valve in parallel.
Background technology
Present braking main valve is a series connection two-chamber piston type pneumatic braking main valve, and structure is made up of valve piston spring, big piston, air extractor vent, push rod, loam cake, upper shell, upper piston assembly, upper piston pull back spring, middle shell, last Two purpose valve, snap ring, valve piston assembly, lower house, following Two purpose valve, blow off valve.Structure is comparatively complicated.The brake compensation state is to realize under the braking pressure situation equal with the balance spring force; When wanting glancing impact, the people passes through pedal, by push rod the upper piston assembly is depressed, at this moment go up Two purpose valve and open, gas reaches the purpose that trailing wheel is braked by last Two purpose valve, has difference of pressure between two chambeies up and down by what structure provided, when push rod top upper piston assembly moves down, because the valve piston assembly that has the cavity of resorption place of pressure moves down, following Two purpose valve is opened, and gas reaches the purpose of front wheel brake by following Two purpose valve; When wanting brake off, unclamp stretcher, piston assembly is returned state of equilibrium under the application force of pull back spring separately up and down, Two purpose valve closure up and down, and leave exhaust clearance, get rid of unnecessary gas; Its maximum shortcoming is a complex structure, and fault is more during use, and manufacture process requirement height, cost are also high, belongs to the precision manufacturing in accurate the manufacturing.Thereby product price is also higher, and service life is shorter.
Summary of the invention
The purpose of this utility model is to provide a kind of pedal type air operated control main valve in parallel, the technical matters that it will solve is to overcome disadvantages of background technology, a kind of simple and lower pneumatic control valve of manufacturing cost rational in infrastructure is provided, cuts down finished cost, and improve the service life of product.
The utility model for achieving the above object, be achieved through the following technical solutions: a kind of pedal type air operated control main valve in parallel, by upper cover plate, main casing, lower cover, seal ring, pedal and pedal support are formed, be set up in parallel front-wheel control cock and trailing wheel control cock in the main casing, in front-wheel control cock, the trailing wheel control cock post rod type spool is set respectively, on the post rod type spool retracing spring is installed, the post rod type spool of described front-wheel control cock and trailing wheel control cock stretches out in the same side and is linked to each other by connecting plate, mounting groove pulley on the pedal is on the groove pulley is pressed in and wins in succession.
Described post rod type spool is provided with 3 air extractor vents of regulating air pressure.
The beneficial effect that adopts the utility model to produce is: the technology that has realized the braking of compressed air brake main valve improves, and is simple in structure, makes old reduction, and be 3 times of series connection two-chamber piston type pneumatic braking main valve service life.
Description of drawings
Label shown in the accompanying drawing:
Among Fig. 1: 1 is that post rod type spool, 2 is that pedal, 3 is that groove pulley, 4 is that pedal support, 5 is that upper cover plate, 6 is that main casing, 7 is that lower cover, 8 is that retracing spring, 9 is that seal ring, 10 is a pin.11,12,14 is air extractor vent, and 13 is the valve vent, and 15 for winning in succession.
Among Fig. 2,13 is the valve vent, and P1 is that air inlet place pressure, P2 are the place's pressure of giving vent to anger.
The specific embodiment
The utility model is described in further detail for the contrast accompanying drawing:
A kind of pedal type air operated control main valve in parallel described in the utility model, agent structure is by upper cover plate, main casing, lower cover, seal ring, pedal, pedal support are formed, be set up in parallel front-wheel control cock and trailing wheel control cock in the main casing, in front-wheel control cock, the trailing wheel control cock post rod type spool is set respectively, on the post rod type spool retracing spring is set, the post rod type spool of described front-wheel control cock and trailing wheel control cock stretches out and is linked to each other by connecting plate at same face, mounting groove pulley on the pedal is on the groove pulley is pressed in and wins in succession.
The utility model is further characterized in that: 3 air extractor vents of regulating air pressure are arranged on the described post rod type spool.
In the utility model, two chamber parallel connections with original series connected two-chamber piston type pneumatic braking main valve, a chamber is the braking of control trailing wheel, a chamber control front wheel brake, that is: front-wheel control cock and trailing wheel control cock, all be provided with in each valve: post rod type spool and retracing spring, the effect of post rod type spool is that control cock actinal surface control flows is crossed gas, the effect of retracing spring is to allow post rod type valve core reset and close intake valve port when unclamping pedal, three holes are arranged on the post rod type spool, when depressing pedal, can regulate the pressure in post rod type spool and the valve pocket; Be for discharge-service valve inner high voltage gas when unclamping pedal.
Front-wheel control cock and trailing wheel control cock post rod type spool separately stretches out total valve body same side, the continuous connecting plate in upper end, put a groove pulley on the connecting plate, the groove pulley is contained on the pedal, it can regulate space motion complicated in the process of pedal, the operator can disposablely be stepped on, reach the purpose of braking simultaneously.
The utility model in use, when wanting glancing impact, push down on the pedal 2, pedal 2 is passed to power and is won 15 in succession by groove pulley 3, under 15 drives of winning in succession, the post rod type spool 1 of front-wheel control cock and trailing wheel control cock moves down, make retracing spring 8 distortion, at this moment air extractor vent 14 descends, sealed circle 9 is blocked, and air extractor vent 11 is blocked by the lower cover corresponding position simultaneously, and air extractor vent 12 enters valve pocket, valve vent 13 is opened, at this moment at this moment wheel braking before or after gas is realized by valve vent 13 places has certain pressure in the valve pocket, gas enters in the post rod type valve pocket by air extractor vent 12 places under pressure, make the interior pressure of valve pocket consistent with pressure in the post rod type spool chamber, the pressure size of import and export and the strength that pin is stepped on are directly proportional; When cancelling braking, unclamp pedal, post rod type spool 1 resets under the application force of retracing spring 8, valve vent 13 is closed, and air extractor vent 11 enters in the valve pocket, moves sealed circle 9 on the air extractor vent 12 and blocks, move on the air extractor vent 14, at this moment connect with extraneous by air extractor vent 11 and air extractor vent 14 in the valve, discharge gas, reduce pressure.
Claims (2)
1. pedal type air operated control main valve in parallel, by upper cover plate, main casing, lower cover, seal ring, pedal and pedal support are formed, it is characterized in that: be set up in parallel front-wheel control cock and trailing wheel control cock in the main casing, in front-wheel control cock, the trailing wheel control cock post rod type spool is set respectively, on the post rod type spool retracing spring is installed, the post rod type spool of described front-wheel control cock and trailing wheel control cock stretches out in the same side and is linked to each other by connecting plate, mounting groove pulley on the pedal is on the groove pulley is pressed in and wins in succession.
2. a kind of pedal type air operated control main valve in parallel according to claim 1 is characterized in that: the post rod type spool is provided with 3 air extractor vents of regulating air pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201848941U CN201646699U (en) | 2010-05-11 | 2010-05-11 | Parallel pedal type pneumatic control main valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201848941U CN201646699U (en) | 2010-05-11 | 2010-05-11 | Parallel pedal type pneumatic control main valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201646699U true CN201646699U (en) | 2010-11-24 |
Family
ID=43111923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201848941U Expired - Fee Related CN201646699U (en) | 2010-05-11 | 2010-05-11 | Parallel pedal type pneumatic control main valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201646699U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111976671A (en) * | 2020-08-27 | 2020-11-24 | 中国煤炭科工集团太原研究院有限公司 | Mechanical linkage control pedal mechanism |
-
2010
- 2010-05-11 CN CN2010201848941U patent/CN201646699U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111976671A (en) * | 2020-08-27 | 2020-11-24 | 中国煤炭科工集团太原研究院有限公司 | Mechanical linkage control pedal mechanism |
| CN111976671B (en) * | 2020-08-27 | 2021-07-20 | 中国煤炭科工集团太原研究院有限公司 | Mechanical linkage control pedal mechanism |
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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: 20101124 Termination date: 20110511 |