CN214929655U - Flow divider valve for motor vehicle braking - Google Patents

Abstract

The utility model discloses a flow divider for motor vehicle braking, the valve body has, be provided with front chamber and the back chamber of mutual isolation in the valve body, be provided with the front chamber piston in the front chamber, be provided with the back chamber piston in the back chamber, be provided with preceding input port and the preceding delivery outlet with the front chamber intercommunication on the valve body, and be provided with the back input port and the back delivery outlet with the back chamber intercommunication on the valve body, front chamber piston and back chamber piston rigid connection, be provided with the piece that resets that makes front chamber piston and back chamber piston reset in the valve body, the inner wall in its characterized in that front chamber is provided with preceding leather cup, preceding leather cup slides and sealing connection with the front chamber piston, the inner wall in back chamber is equipped with back leather cup, back leather cup slides and sealing connection with the back chamber piston. The utility model discloses a structure of piston adoption guide block and O type around having cancelled among the prior art, but adopts the direct leather cup structure that sets up at the valve body inner wall, has both solved sealed bad problem, makes the assembly degree of difficulty reduce again, has good application effect.

Description

Flow divider valve for motor vehicle braking

Technical Field

The utility model relates to a motor vehicle braking technical field, in particular to flow divider that motor vehicle braking was used.

Background

The hydraulic disc brake system is a common technical means for braking on motor vehicles, and is a brake device which utilizes hydraulic oil to transfer the power of a brake operating rod to a brake caliper and then utilizes the brake caliper to rub a disc to realize braking.

When the hydraulic disc brake system is used on a motorcycle, the hydraulic disc brake system generally comprises a brake pump, an oil cup, a connecting pipeline and brake calipers, and a brake mechanism, such as a hand brake or foot brake driving brake pump, conveys hydraulic oil in the oil cup to each brake caliper for braking through the connecting pipeline.

In order to solve the technical problem, a Chinese patent database is searched to obtain a utility model patent with an authorization publication number of CN20684140U and a name of a motor vehicle and a brake system thereof, and the following contents are disclosed: the utility model provides a braking system, includes first brake subassembly, second brake subassembly, first braking pincers, second braking pincers and flow divider, the flow divider includes the valve body, be provided with front chamber and the back chamber of mutual isolation in the valve body, be provided with the front chamber piston in the front chamber, be provided with the back chamber piston in the back chamber, be provided with on the valve body with the preceding input port of front chamber intercommunication, preceding delivery outlet and with the back input port of back chamber intercommunication, the front chamber piston with back chamber piston rigid connection, the back input port is used for the input liquid drive the back chamber piston drives the front chamber piston will the liquid warp in the front chamber the extrusion of delivery outlet, be provided with in the valve body and be used for making the front chamber piston and the first piece that resets that the back chamber piston resets. In fig. 2 of the document, a rear cavity piston is sleeved with a guide block, and an O-ring is arranged on the guide block. The brake system with the structure improves the defects to a great extent, but due to the adoption of the structure of the guide block and the O-shaped ring, poor sealing is easily caused, the phenomenon of oil leakage also exists, the potential safety hazard still exists, the structure is high in assembly difficulty, and the yield of products is directly reduced.

Disclosure of Invention

In view of the deficiencies in the prior art, the to-be-solved technical problem of the present invention is to provide a good-sealing and oil-leakage-proof flow divider for braking of a motor vehicle.

Therefore, the utility model discloses an adopt following technical scheme to realize: the utility model provides a flow divider for motor vehicle braking, the valve body has, be provided with front chamber and the back chamber of mutual isolation in the valve body, be provided with the front chamber piston in the front chamber, be provided with the back chamber piston in the back chamber, be provided with preceding input port and preceding delivery outlet with the front chamber intercommunication on the valve body, and be provided with the back input port and the back delivery outlet with the back chamber intercommunication on the valve body, front chamber piston and back chamber piston rigid connection, be provided with the piece that resets that makes front chamber piston and back chamber piston reset in the valve body, the inner wall of its characterized in that front chamber is provided with preceding leather cup, preceding leather cup slides and sealing connection with the front chamber piston, the inner wall of back chamber is equipped with the back leather cup, back leather cup slides and sealing connection with the back chamber piston.

The outer end of the front cavity of the valve body is provided with a plug cover, and the plug cover is in threaded connection with the valve body.

The front input port is connected with the liquid output end of the first brake assembly, the front output port is connected with the first brake caliper, the rear input port is connected with the liquid output end of the second brake assembly, and the rear output port is connected with the second brake caliper.

The utility model discloses a this kind of structure directly sets up the leather cup at the inner wall of valve body, has solved sealed bad problem promptly, makes the assembly of valve become simple again, has solved the cooperation that adopts O type circle and guide block among the prior art and the sealed problem that exists, has good application effect.

Drawings

The utility model discloses there is following figure:

FIG. 1 is a block diagram of the present invention;

FIG. 2 is a cross-sectional view of the present invention shown in FIG. 1;

fig. 3 is a structural diagram of the present invention applied to a braking system.

Detailed Description

Referring to the attached drawings, the flow divider for motor vehicle braking is provided with a valve body 1, a front cavity 6 and a rear cavity 14 which are isolated from each other are arranged in the valve body 1, a front cavity piston 9 is arranged in the front cavity 6, a rear cavity piston 16 is arranged in the rear cavity 14, a front input port 2 and a front output port 10 which are communicated with the front cavity 6 are arranged on the valve body 1, a rear input port 11 and a rear output port 12 which are communicated with the rear cavity 14 are arranged on the valve body 1, the front cavity piston 9 is rigidly connected with the rear cavity piston 16, a resetting piece for resetting the front cavity piston 9 and the rear cavity piston 16 is arranged in the valve body 1, wherein the resetting piece adopted by the front cavity piston 9 is a first spring 7, the resetting piece adopted by the rear cavity piston 16 is a second spring 15, a front leather cup 8 is arranged on the inner wall of the front cavity 6, and the front leather cup 8 is connected with the front cavity piston 9 in a sliding and sealing way, the inner wall of the rear cavity 14 is provided with a rear leather cup 13, and the rear leather cup 13 is connected with the rear cavity piston 16 in a sliding and sealing mode. The setting of leather cup around it, set up the slot at valve body 1 inner wall promptly, inlay the leather cup in the slot can, because the plasticity of leather cup, the diameter of leather cup only needs to be slightly bigger than the slot, press into the leather cup the slot can, simple to operate is simple, firm in connection moreover. By adopting the leather cup structure, the assembling process is greatly simplified, the assembly becomes simple and convenient, and the yield of products is greatly improved. The outer end of the front cavity 6 of the valve body 1 is provided with a blocking cover 21, and the blocking cover 21 is in threaded connection with the valve body 1. The structure is convenient to process and assemble. After the parts such as the piston and the like are installed, the parts are sealed, and pressure is built and released.

The front input port 2 is connected with a liquid output end of a first brake component 17, the front output port 10 is connected with a first brake caliper 20, the rear input port 11 is connected with a liquid output end of a second brake component 18, and the rear output port 12 is connected with a second brake caliper 19.

When the brake is used, hydraulic oil pumped out by the first brake assembly 17 enters the front cavity through the front input port 2 and flows to the first brake caliper 20 from the front output port 10, and the first brake caliper 20 is controlled to brake; when the second brake component 18 is operated, after hydraulic oil is input from the rear input port 11, the hydraulic oil is output from the rear output port 12 to control the second brake caliper 19, meanwhile, the rear cavity piston 16 is pushed to drive the front cavity piston 9 to move, when the front cavity piston 9 moves, the front leather cup 8 blocks the oil hole where the blocking cover 21 is located, so that the brake fluid in the front cavity flows to the first brake caliper through the front output port 10, the two brake calipers are linked, and when the second brake component is applied to a motor vehicle, the front brake caliper is linked with the rear brake caliper. It can be seen that this arrangement ensures that at least one of the sets of brake calipers is available, thereby improving the reliability and safety of the overall braking system.

Claims (3)

1. A flow divider for motor vehicle braking is provided with a valve body (1), wherein a front cavity (6) and a rear cavity (14) which are isolated from each other are arranged in the valve body (1), a front cavity piston (9) is arranged in the front cavity (6), a rear cavity piston (16) is arranged in the rear cavity (14), a front input port (2) and a front output port (10) which are communicated with the front cavity (6) are arranged on the valve body (1), a rear input port (11) and a rear output port (12) which are communicated with the rear cavity (14) are arranged on the valve body (1), the front cavity piston (9) is rigidly connected with the rear cavity piston (16), a reset piece which enables the front cavity piston (9) and the rear cavity piston (16) to reset is arranged in the valve body (1), and the flow divider is characterized in that a front leather cup (8) is arranged on the inner wall of the front cavity (6), the front leather cup (8) is connected with the front cavity piston (9) in a sliding and sealing way, the inner wall of back chamber (14) is equipped with back leather cup (13), back leather cup (13) with back chamber piston (16) slip and sealing connection.

2. The flow divider valve for motor vehicle brakes according to claim 1, characterized in that the outer end of the front chamber (6) of the valve body (1) is provided with a closure cap (21), said closure cap (21) being screwed to the valve body (1).

3. Flow divider valve for motor vehicle braking according to claim 1, characterized in that said front inlet (2) is connected to a fluid outlet of a first brake assembly (17), said front outlet (10) is connected to a first brake caliper (20), said rear inlet (11) is connected to a fluid outlet of a second brake assembly (18), and said rear outlet (12) is connected to a second brake caliper (19).

Images