CN216636454U

CN216636454U - High-sealing brake pump

Info

Publication number: CN216636454U
Application number: CN202220129492.4U
Authority: CN
Inventors: 周锋
Original assignee: Wenzhou Jiangfeng Pump Industry Co ltd
Current assignee: Wenzhou Jiangfeng Pump Industry Co ltd
Priority date: 2022-01-18
Filing date: 2022-01-18
Publication date: 2022-05-31
Anticipated expiration: 2032-01-18

Abstract

The utility model discloses a high-sealing brake pump, which comprises a master brake pump, wherein an oil tank assembly is fixedly arranged on one side of the master brake pump, the oil tank assembly comprises a pressurizing tank fixedly connected to the master brake pump, a pressurizing cavity is formed in the pressurizing tank, a connecting plate is fixedly arranged in the middle of one side of the pressurizing tank, which is far away from the master brake pump, an oil tank body is fixedly arranged in the middle of one side of the connecting plate, which is far away from the pressurizing tank, a first sealing ring is fixedly arranged on the outer edge surface of the pressurizing tank in an annular array manner, a second sealing ring is fixedly arranged on the outer edge surface of one end, which faces the pressurizing tank, of the oil tank body in an annular array manner, an oil filling pipe is fixedly connected between the second sealing ring and the first sealing ring in a sealing manner, and rubber sealing rings for connecting the first sealing ring and the second sealing ring are respectively constructed on the outer edge surfaces of the two ends of the oil filling pipe, the high-sealing brake pump has a reasonable structure and is convenient for improving the sealing effect, the normal braking function of the vehicle is maintained, and the practicability is high.

Description

High-sealing brake pump

Technical Field

The utility model belongs to the technical field of brake pumps, and particularly relates to a high-sealing brake pump.

Background

The wheel cylinder is an indispensable chassis braking part of a braking system and mainly used for pushing a brake pad and rubbing the brake pad with a brake drum. The vehicle speed is reduced and stationary. After the brake is stepped on, the master cylinder generates thrust to press hydraulic oil to the slave cylinder, a piston in the slave cylinder starts to move under the action of the hydraulic pressure to push a brake pad, and the hydraulic brake is composed of a master cylinder and a brake oil storage tank. One end of each of the brake pedal and the brake oil pipe is connected with the other end of the brake pedal. The brake master cylinder is internally stored with brake oil and is provided with an oil outlet and an oil inlet.

When the brake pump is used, oil flows into a master cylinder through an oil storage tank, and enters a slave cylinder after being pressurized through the master cylinder, so that the oil can easily leak at the joint of the master cylinder when the oil is injected into the master cylinder by the oil storage tank, the oil pressure is reduced, the oil leaks, and the normal braking of a vehicle is influenced.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a highly sealed brake pump to solve the above problems.

In order to achieve the purpose, the utility model provides the following technical scheme:

a high-sealing brake pump comprises a brake master cylinder, wherein an oil tank assembly is fixedly arranged on one side of the brake master cylinder;

the oil tank assembly comprises a pressurizing tank fixedly connected to the master cylinder, a pressurizing cavity is formed in the pressurizing tank, a connecting plate is fixedly arranged in the middle of one side, away from the master cylinder, of the pressurizing tank, and an oil tank body is fixedly arranged in the middle of one side, away from the pressurizing tank, of the connecting plate;

the oil tank is characterized in that a first sealing ring is fixedly arranged on the outer edge surface of the pressurizing tank in an annular array mode, a second sealing ring is fixedly arranged on the outer edge surface of one end of the oil tank body facing the pressurizing tank in an annular array mode, an oil injection pipe is fixedly connected between the second sealing ring and the first sealing ring in a sealing mode, rubber sealing rings which are connected with the first sealing ring and the second sealing ring in a compression mode are constructed on the outer edge surfaces of the two ends of the oil injection pipe, and oil separating films are arranged at the compression joint positions of the first rubber sealing rings and the second sealing rings.

Further, an annular sealing groove is formed in the inner edge face of the first sealing ring and the inner edge face of the second sealing ring in the middle, the rubber sealing ring is installed in the annular sealing groove in a compression joint mode, and the oil separation film is arranged between the rubber sealing ring and the annular sealing groove.

Further, the position that adds the outer fringe face of pressure tank and correspond sealing ring one is the oilhole one that the annular array offered the switch-on pressure chamber, this internal oil storage chamber that has seted up of oil tank, and the position that the outer fringe face of oil tank body corresponds sealing ring two is the oilhole two that the annular array offered the switch-on oil storage chamber, annotate oil pipe switch-on oil storage chamber and pressure chamber, and install the valve on the outer fringe face of annotating oil pipe.

Further, the one end that the oil tank subassembly was kept away from to the master cylinder of brake fixed mounting placed in the middle has the rubber pad, and scalable the installing piston rod that passes the rubber pad in the master cylinder of brake, the one end that the rubber pad was kept away from to the piston rod can be dismantled and be connected with U type connecting piece.

Furthermore, an external thread is formed on the outer edge surface of one end, facing the U-shaped connecting piece, of the piston rod, and a locking nut is installed on the outer edge surface of one end, facing the U-shaped connecting piece, of the piston rod in a threaded fit mode.

Further, outer fringe face one side of brake master cylinder demountable installation has the end cover between two parties, and brake master cylinder outer fringe face is constructed towards the one end of oil tank subassembly and is had the connecting block, the connecting hole has been seted up in the connecting block.

Compared with the prior art, the utility model has the following beneficial effects: benefit from rubber seal and the setting that separates the oil film, realize sealedly through the crimping of rubber seal and ring seal groove, be in the extrusion deformation state during rubber seal and ring seal groove crimping, thereby make the junction of rubber seal and ring seal groove inseparable, and separate the oil film through setting up at the junction of rubber seal and ring seal groove, effectively kept apart the invasion of brake fluid, can promote the sealed effect of brake fluid under the combined action of rubber seal and oil film, reduce the condition that fluid leaks and influences vehicle braking effect.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of a fuel tank assembly according to the present invention;

figure 3 is a cross-sectional view of the fuel tank assembly of the present invention.

In the figure: 1. a master cylinder of the brake; 2. a rubber pad; 3. a piston rod; 4. a U-shaped connecting piece; 5. locking the nut; 6. an end cap; 7. connecting blocks; 8. connecting holes; 9. a fuel tank assembly; 901. a pressurizing box; 902. a pressurization cavity; 903. a first sealing ring; 904. a connecting plate; 905. an oil tank body; 906. an oil storage chamber; 907. a second sealing ring; 908. an oil filling pipe; 909. a rubber seal ring; 910. an oil-separating film.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described with the specific embodiments.

In order to improve the sealing effect and maintain the normal braking function of the vehicle, as shown in fig. 1-3, the high-sealing brake pump includes a master cylinder 1 having a tank assembly 9 fixedly mounted on one side thereof, the tank assembly 9 includes a pressurized tank 901 fixedly connected to the master cylinder 1, a pressurized cavity 902 is formed inside the pressurized tank 901, a connecting plate 904 is fixedly mounted centrally on one side of the pressurized tank 901 away from the master cylinder 1, a tank body 905 is fixedly mounted centrally on one side of the connecting plate 904 away from the pressurized tank 901, a first sealing ring 903 is fixedly mounted on an outer edge surface of the pressurized tank 901 in an annular array, a second sealing ring 907 is fixedly mounted on an outer edge surface of one end of the tank body 905 facing the pressurized tank 901 in an annular array, a sealing tube 908 is fixedly connected between the second sealing ring 907 and the first sealing ring 903 in a sealing manner, and rubber sealing rings 909 for pressing the first sealing ring 903 and the second sealing ring 907 are formed on outer edge surfaces of two ends of the sealing tube 908, an oil separation film 910 is arranged at the pressure joint of the rubber seal 909 and the first sealing ring 903 and the second sealing ring 907, annular sealing grooves are arranged in the middle of the inner edge surfaces of the first sealing ring 903 and the second sealing ring 907, the rubber seal 909 is arranged in the annular sealing grooves in a pressure joint mode, the oil separation film 910 is arranged between the rubber seal 909 and the annular sealing grooves, and due to the arrangement of the rubber seal 909 and the oil separation film 910, the sealing is realized by the compression joint of the rubber sealing ring 909 and the annular sealing groove, the rubber sealing ring 909 and the annular sealing groove are in an extrusion deformation state when being compressed and connected, so that the joint of the rubber sealing ring 909 and the annular sealing groove is tight, and the invasion of brake oil is effectively isolated by arranging the oil isolating film 910 at the joint of the rubber sealing ring 909 and the annular sealing groove, under the combined action of the rubber sealing ring 909 and the oil separation film 910, the sealing effect of the brake oil can be improved, and the situation that the brake effect of the vehicle is influenced by the oil leakage is reduced.

In order to control the on-off of the oil filling pipe 908, as shown in fig. 2 and 3, the first oil holes communicated with the pressure chamber 902 are formed in an annular array on the outer edge surface of the pressure tank 901 corresponding to the first sealing ring 903, the oil storage chamber 906 is formed in the oil tank body 905, the second oil holes communicated with the oil storage chamber 906 are formed in an annular array on the outer edge surface of the oil tank body 905 corresponding to the second sealing ring 907, the oil filling pipe 908 is communicated with the oil storage chamber 906 and the pressure chamber 902, and a valve is installed on the outer edge surface of the oil filling pipe 908.

In order to realize the braking to the vehicle conveniently, as shown in fig. 1, the one end of the master cylinder 1, which is far away from the oil tank assembly 9, is fixedly provided with a rubber pad 2 in the middle, a piston rod 3 which penetrates through the rubber pad 2 is telescopically arranged in the master cylinder 1, one end of the piston rod 3, which is far away from the rubber pad 2, is detachably connected with a U-shaped connecting piece 4, and during specific implementation, one end of the U-shaped connecting piece 4 can be connected with a brake pad, and the friction brake disc is extruded through the brake pad to realize the braking of the vehicle.

In order to install the brake pump conveniently, as shown in fig. 1, an external thread is formed on the outer edge surface of one end, facing the U-shaped connecting piece 4, of the piston rod 3, a locking nut 5 is installed on the outer edge surface of one end, facing the U-shaped connecting piece 4, of the piston rod 3 in a threaded fit mode, an end cover 6 is detachably installed on one side of the outer edge surface of the master brake pump 1 in the middle, a connecting block 7 is formed on one end, facing the oil tank assembly 9, of the outer edge surface of the master brake pump 1, and a connecting hole 8 is formed in the connecting block 7.

The working principle is as follows: when the high-sealing brake pump is used, in the braking process of a vehicle, a valve arranged on the outer edge surface of an oil filling pipe 908 is opened, oil in an oil tank body 905 enters the oil filling pipe 908 through a first oil hole and enters a pressurizing tank 901 through a second oil hole, the oil enters a pressurizing cavity 902 and then is pressurized, the pressurized oil enters a master brake pump 1 and pushes a piston rod 3 in the master brake pump 1 to extend out, so that a U-shaped connecting piece 4 extends out, in the specific implementation, one end of the U-shaped connecting piece 4 can be connected with a brake pad, a friction brake disc is extruded by the brake pad to realize vehicle braking, when the oil flows into the pressurizing tank 901 through the oil tank body 905, sealing is realized through compression joint of a rubber sealing ring 909 and an annular sealing groove, the rubber sealing ring 909 and the annular sealing groove are in a compression deformation state, so that the joint of the rubber sealing ring 909 and the annular sealing groove is tight, and through set up at the junction of rubber seal 909 and annular seal groove and separate oil film 910, effectively kept apart the invasion of brake fluid, can promote the sealed effect of brake fluid under the combined action of rubber seal 909 and oil film 910, this high sealed brake pump, rational in infrastructure, be convenient for promote sealed effect, maintain the normal braking function of vehicle, the practicality is strong.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A high-sealing brake pump comprises a brake master cylinder (1) with an oil tank assembly (9) fixedly arranged on one side;

the method is characterized in that: the oil tank assembly (9) comprises a pressurizing tank (901) fixedly connected to the master brake pump (1), a pressurizing cavity (902) is formed in the pressurizing tank (901), a connecting plate (904) is fixedly installed in the center of one side, away from the master brake pump (1), of the pressurizing tank (901), and an oil tank body (905) is fixedly installed in the center of one side, away from the pressurizing tank (901), of the connecting plate (904);

the oil tank is characterized in that a first sealing ring (903) is fixedly installed on the outer edge surface of the pressurizing tank (901) in an annular array mode, a second sealing ring (907) is fixedly installed on the outer edge surface of one end, facing the pressurizing tank (901), of the oil tank body (905) in an annular array mode, an oil filling pipe (908) is fixedly connected between the second sealing ring (907) and the first sealing ring (903) in a sealing mode, rubber sealing rings (909) for pressing the first sealing ring (903) and the second sealing ring (907) are constructed on the outer edge surfaces of the two ends of the oil filling pipe (908), and oil separating films (910) are arranged at the pressing positions of the rubber sealing rings (909) and the first sealing ring (903) and the second sealing ring (907).

2. The high-sealing brake pump as claimed in claim 1, wherein: and annular sealing grooves are formed in the inner edge surfaces of the first sealing ring (903) and the second sealing ring (907) in the middle, the rubber sealing ring (909) is installed in the annular sealing grooves in a compression joint mode, and the oil separating film (910) is arranged between the rubber sealing ring (909) and the annular sealing grooves.

3. The high-sealing brake pump as claimed in claim 2, wherein: the position that adds compact case (901) outer fringe face corresponds sealing ring one (903) is the oilhole one that the annular array seted up switch-on pressurization chamber (902), oil storage chamber (906) have been seted up in oil tank body (905), and the position that oil tank body (905) outer fringe face corresponds sealing ring two (907) is the oilhole two that the annular array seted up switch-on oil storage chamber (906), oiling pipe (908) switch-on oil storage chamber (906) and pressurization chamber (902), and install the valve on the outer fringe face of oiling pipe (908).

4. The high-sealing brake pump as claimed in claim 1, wherein: the one end that oil tank subassembly (9) were kept away from in brake master cylinder (1) fixed mounting placed in the middle has rubber pad (2), and scalable the installing piston rod (3) that pass rubber pad (2) in brake master cylinder (1), the one end that rubber pad (2) were kept away from in piston rod (3) can be dismantled and be connected with U type connecting piece (4).

5. The high-sealing brake pump as claimed in claim 4, wherein: the outer thread is constructed on the outer edge face of one end, facing the U-shaped connecting piece (4), of the piston rod (3), and the locking nut (5) is installed on the outer edge face of one end, facing the U-shaped connecting piece (4), of the piston rod (3) in a threaded fit mode.

6. The high-sealing brake pump as claimed in claim 1, wherein: outer fringe face one side of brake master cylinder (1) demountable installation placed in the middle has end cover (6), and brake master cylinder (1) outer fringe face is constructed towards the one end of oil tank subassembly (9) and is had connecting block (7), connecting hole (8) have been seted up in connecting block (7).