Automobile brake pump

Abstract

The utility model relates to the technical field of brake pumps, in particular to an automobile brake pump which comprises a brake master cylinder, an oil inlet pipe and an oil outlet pipe are arranged on the side wall of the brake master cylinder, and the automobile brake pump is characterized in that a connecting block is fixedly installed at the end of the oil inlet pipe, and an oil pipe connecting opening is formed in the end, away from the oil inlet pipe, of the connecting block; a round hole is formed in the connecting block so that the connecting block can be communicated with the oil inlet pipe, and an inserting groove is formed in the top of the connecting block. According to the oil residue filtering device, the connecting block is arranged, the inserting plate is inserted into the top of the connecting block, the filtering plate is installed on the inserting plate, oil residues can be filtered through the filtering plate, the inserting plate is pulled out to conveniently disassemble the filtering plate and clean the oil residues, operation is convenient, practicability is high, and the filtering plate is located at the position of the through hole; due to the special design of the sizes of the two ends of the through hole, a large cavity is formed between the filter plate and the through hole, filtered oil residues can be accumulated at the bottom of the through hole, and the phenomenon that the filter plate is directly blocked easily is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of brake pumps, in particular to an automobile brake pump. Background Art

[0002] The brake master cylinder is divided into two categories: pneumatic brake master cylinder and hydraulic brake master cylinder. Pneumatic brake master cylinder is mainly used in load-carrying vehicles (such as heavy trucks, large buses, engineering vehicles) and some agricultural vehicles, while hydraulic brake master cylinder is mainly used in small cars (such as cars, vans, small trucks, small buses) and some agricultural vehicles. The automobile brake master cylinder is the main control device in the automobile driving brake system, and realizes sensitive follow-up control during the braking and release processes of the dual-circuit main brake system.

[0003] When in use, the brake pump uses the foot pedal to push the push rod, and the push rod pushes the internal piston to push the brake oil into the brake cylinder, and then returns to the brake pump through the pipe to form a circulation. A lot of oil residue will appear in the brake oil after long-term use. The long-term presence of these oil residues in the brake pump will affect the oil circuit connectivity between the brake pump and the brake cylinder, thereby affecting the braking effect, and posing certain safety hazards. Utility Model Content

[0004] The utility model aims to provide a car brake pump, which solves the problem in the prior art that a lot of oil residue will appear in the brake oil after long-term use. The long-term existence of these oil residues in the brake pump will affect the oil circuit connection between the brake pump and the brake cylinder, thereby affecting the braking effect and posing certain safety hazards.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A car brake pump comprises a brake master cylinder, wherein the side wall of the brake master cylinder is provided with an oil inlet pipe and an oil outlet pipe, and is characterized in that a connecting block is fixedly installed at the end of the oil inlet pipe, an end of the connecting block away from the oil inlet pipe is provided with an oil pipe connecting port, a circular hole is provided inside the connecting block to achieve a state of communication with the oil inlet pipe, a slot is provided on the top of the connecting block, a plug plate is slidably inserted inside the slot, a through hole is provided on the surface of the plug plate, the through hole and the circular hole are concentric, an inner diameter of one end of the through hole close to the oil pipe connecting port is smaller than an inner diameter of the other end away from the oil pipe connecting port, and a filter plate is provided at the end of the through hole away from the oil pipe connecting port.

[0007] Preferably, a top plate is fixedly mounted on the top of the plug plate, bolts are arranged on the surface of the top plate, the top plate is fixedly connected to a connecting block via the bolts, and a handle is fixedly mounted on the top of the top plate.

[0008] Preferably, a groove is provided on the top of the connection block at a position relative to the slot, a rubber ring is fixedly mounted on the bottom of the top plate, and the rubber ring is sleeved on the surface of the plug board.

[0009] Preferably, a first embedding groove and a second embedding groove are respectively formed on both sides of the insert plate, and a first sealing gasket and a second sealing gasket are respectively disposed inside the first embedding groove and the second embedding groove.

[0010] Preferably, three limit blocks are arranged in a circular array on the inner wall of the through hole, and the filter plate is located between the limit blocks and the master brake cylinder.

[0011] Preferably, the filter plate is composed of a circular frame and a filter screen fixedly installed inside the circular frame, and the size of the circular frame is matched with the size of the through hole.

[0012] The utility model has at least the following beneficial effects:

[0013] By setting a connecting block, inserting a plug plate on the top of the connecting block, and installing the filter plate on the plug plate, the filter plate can be used to filter the oil residue. Pulling out the plug plate is convenient for disassembling the filter plate and cleaning the oil residue. The operation is convenient and practical. The filter plate is located at the position of the through hole, and the special design of the size of the two ends of the through hole forms a larger cavity between the filter plate and the through hole, so that the filtered oil residue can be accumulated at the bottom of the through hole, and the filter plate will not be easily directly blocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the oil inlet pipe structure of the utility model;

[0017] Figure 3 This is a cross-sectional view of the connection block of the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the limit block of the utility model;

[0019] Figure 5 It is a cross-sectional view of the plug board of the utility model.

[0020] In the figure: 1. brake master cylinder; 2. oil inlet pipe; 3. oil outlet pipe; 4. connecting block; 5. oil pipe connecting port; 6. slot; 7. plug-in plate; 8. top plate; 9. handle; 10. bolt; 11. rubber ring; 12. first sealing gasket; 13. first embedded groove; 14. second embedded groove; 15. second sealing gasket; 16. filter plate; 17. limit block; 18. through hole; 19. groove. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In addition, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0024] The electrical components mentioned in this article are all connected to an external main controller and 220V mains electricity, and the main controller can be a conventional known device for controlling a computer or the like.

[0025] In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0026] Reference Figure 1-5, a car brake pump comprises a brake master cylinder 1, the side wall of the brake master cylinder 1 is provided with an oil inlet pipe 2 and an oil outlet pipe 3, the end of the oil inlet pipe 2 is fixedly installed with a connecting block 4, the end of the connecting block 4 away from the oil inlet pipe 2 is provided with an oil pipe connecting port 5, a circular hole is provided inside the connecting block 4 to achieve a state of communication with the oil inlet pipe 2, a slot 6 is provided on the top of the connecting block 4, a plug plate 7 is slidably inserted inside the slot 6, a through hole 18 is provided on the surface of the plug plate 7, the through hole 18 is concentric with the circular hole, the inner diameter of one end of the through hole 18 close to the oil pipe connecting port 5 is smaller than the inner diameter of the other end away from the oil pipe connecting port 5, a filter plate 16 is provided at the end of the through hole 18 away from the oil pipe connecting port 5, when the brake oil enters the brake cylinder through the oil outlet pipe 3, returns to the oil inlet pipe 2 through the brake cylinder, and passes through the connecting block 4 before entering the oil inlet pipe 2, and the purpose of filtering the brake oil is achieved by using the plug plate 7 and the filter plate 16 provided inside the connecting block 4, The filtered oil residue remains in the plug plate 7, and it is only necessary to pull the plug plate 7 upward for a certain distance, then remove the filter plate 16, and finally clean the filtered oil residue. In this process, the plug plate 7 is always inserted in the slot 6 of the connecting block 4 without being detached, so that the brake oil will not seep out from the top of the slot 6, which is convenient for use. In addition, the filter plate 16 is located at the position of the through hole 18, and the special design of the dimensions at both ends of the through hole 18 forms a larger cavity between the filter plate 16 and the through hole 18. After the oil residue is filtered, it is continuously impacted by the brake oil and its own gravity, so that the filtered oil residue can be accumulated at the bottom of the through hole 18, and the filter plate 16 will not be easily directly blocked. By setting the connecting block 4, inserting the plug plate 7 at the top of the connecting block 4, and installing the filter plate 16 on the plug plate 7, the filter plate 16 can be used to filter the oil residue. The plug plate 7 is pulled out to facilitate the disassembly of the filter plate 16 and the cleaning of the oil residue, which is convenient to operate and has strong practicality.

[0027] Furthermore, a top plate 8 is fixedly installed on the top of the plug plate 7, and bolts 10 are provided on the surface of the top plate 8. The top plate 8 is fixedly connected to the connecting block 4 by the bolts 10. A handle 9 is fixedly installed on the top of the top plate 8. By providing the top plate 8, the plug plate 7 can be inserted into the slot 6 to play a sealing role. The provided bolts 10 serve the purpose of fastening the plug plate 7 and the top plate 8. The provided handle 9 facilitates the plug plate 7 to be pulled out of the slot 6.

[0028] Furthermore, a groove 19 is provided at the top of the connecting block 4 relative to the position of the slot 6, a rubber ring 11 is fixedly installed at the bottom of the top plate 8, and the rubber ring 11 is sleeved on the surface of the plug plate 7. By providing the rubber ring 11, the sealing between the top plate 8, the plug plate 7 and the slot 6 is further strengthened, thereby reducing the leakage of brake oil from the top of the slot 6 during normal use of the brake pump.

[0029] Furthermore, a first embedding groove 13 and a second embedding groove 14 are respectively provided on both sides of the plug board 7, and a first sealing gasket 12 and a second sealing gasket 15 are respectively provided inside the first embedding groove 13 and the second embedding groove 14. The first sealing gasket 12 and the second sealing gasket 15 are provided to further enhance the sealing performance of the plug board 7 inserted in the slot 6, and the first embedding groove 13 and the second embedding groove 14 can limit the first sealing gasket 12 and the second sealing gasket 15, so that the first sealing gasket 12 and the second sealing gasket 15 will not be out of position when the plug board 7 is pulled out upward or pushed downward.

[0030] Furthermore, three limit blocks 17 are arranged in a circular array on the inner wall of the through hole 18, and the filter plate 16 is located between the limit block 17 and the master brake cylinder 1. By setting the limit block 17, the position of the filter plate 16 can be limited, so that one side of the filter plate 16 is limited by the limit block, and the other side is limited by the inner wall of the slot 6. The filter plate 16 will not shake, and when the plug plate 7 is pulled out, the filter plate 16 can be directly taken out from the side away from the limit block 17, which is convenient for use.

[0031] Furthermore, the filter plate 16 is composed of a circular frame and a filter screen fixedly installed inside the circular frame, and the size of the circular frame is matched with the size of the through hole 18.

[0032] In summary, during use, the brake oil enters the brake cylinder through the oil outlet pipe 3, returns to the oil inlet pipe 2 through the brake cylinder, and passes through the connecting block 4 before entering the oil inlet pipe 2. The connecting block 4 is provided with a plug plate 7 and a filter plate 16 inside to achieve the purpose of filtering the brake oil. The filtered oil residue remains in the plug plate 7. It only needs to pull the plug plate 7 upward for a certain distance, and then remove the filter plate 16, and finally clean the filtered oil residue. In this process, the plug plate 7 is always inserted in the slot 6 of the connecting block 4 without being detached, so that the brake oil will not be discharged from the top of the slot 6 The filter plate 16 is located at the position of the through hole 18, and the special design of the dimensions of the two ends of the through hole 18 forms a large cavity between the filter plate 16 and the through hole 18, so that the filtered oil residue can be accumulated at the bottom of the through hole 18, and the filter plate 16 will not be easily blocked directly. By setting the connecting block 4, inserting the plug plate 7 on the top of the connecting block 4, and installing the filter plate 16 on the plug plate 7, the filter plate 16 can be used to filter the oil residue, and the plug plate 7 can be pulled out to facilitate the disassembly of the filter plate 16 and the cleaning of the oil residue, which is convenient to operate and has strong practicality. By setting the top plate 8, the plug plate 7 can play a sealing role after being inserted into the slot 6. The bolts 10 provided are used to fasten the plug plate 7 and the top plate 8. The handle 9 provided is convenient for pulling the plug plate 7 out of the slot 6. By setting the rubber ring 11, the sealing between the top plate 8, the plug plate 7 and the slot 6 is further strengthened, and the situation that the brake oil leaks from the top of the slot 6 during normal use of the brake pump is reduced. The sealing of the plug plate 7 inserted in the slot 6 is further strengthened by setting the first sealing gasket 12 and the second sealing gasket 15, and the first embedded The groove 13 and the second embedding groove 14 can limit the first sealing gasket 12 and the second sealing gasket 15, so that the first sealing gasket 12 and the second sealing gasket 15 will not be out of position when the plug plate 7 is pulled out upward or pushed downward. The position of the filter plate 16 can be limited by setting the limit block 17, so that one side of the filter plate 16 is limited by the limit block and the other side is limited by the inner wall of the slot 6, and the filter plate 16 will not shake. Moreover, when the plug plate 7 is pulled out, the filter plate 16 can be directly taken out from the side away from the limit block 17, which is convenient for use.

[0033] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An automobile brake pump, comprising a brake master cylinder (1), wherein the side wall of the brake master cylinder (1) is provided with an oil inlet pipe (2) and an oil outlet pipe (3), characterized in that: A connecting block (4) is fixedly mounted on the end of the oil inlet pipe (2); an oil pipe connecting port (5) is provided at one end of the connecting block (4) away from the oil inlet pipe (2); a circular hole is provided inside the connecting block (4) to achieve a state of communication with the oil inlet pipe (2); a slot (6) is provided on the top of the connecting block (4); a plug plate (7) is slidably inserted inside the slot (6); a through hole (18) is provided on the surface of the plug plate (7); the through hole (18) and the circular hole are concentric; the inner diameter of one end of the through hole (18) close to the oil pipe connecting port (5) is smaller than the inner diameter of the other end away from the oil pipe connecting port (5); and a filter plate (16) is provided inside the through hole (18) at one end away from the oil pipe connecting port (5).

2. The automobile brake pump according to claim 1, characterized in that: A top plate (8) is fixedly mounted on the top of the plug plate (7), bolts (10) are provided on the surface of the top plate (8), the top plate (8) is fixedly connected to the connecting block (4) via the bolts (10), and a handle (9) is fixedly mounted on the top of the top plate (8).

3. The automobile brake pump according to claim 2, characterized in that: A groove (19) is provided at the top of the connection block (4) at a position relative to the slot (6), a rubber ring (11) is fixedly mounted at the bottom of the top plate (8), and the rubber ring (11) is sleeved on the surface of the plug plate (7).

4. The automobile brake pump according to claim 1, characterized in that: A first embedding groove (13) and a second embedding groove (14) are respectively provided on both sides of the insert plate (7), and a first sealing gasket (12) and a second sealing gasket (15) are respectively provided inside the first embedding groove (13) and the second embedding groove (14).

5. The automobile brake pump according to claim 1, characterized in that: Three limit blocks (17) are arranged in a circular array on the inner wall of the through hole (18), and the filter plate (16) is located between the limit blocks (17) and the master brake cylinder (1).

6. The automobile brake pump according to claim 1, characterized in that: The filter plate (16) is composed of a circular frame and a filter screen fixedly mounted inside the circular frame, and the size of the circular frame is compatible with the size of the through hole (18).

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