Brake fluid filler connecting structure

Abstract

The utility model relates to the technical field of brake fluid filling equipment, in particular to a brake fluid filling device connecting structure which comprises a base, and a fixing hole is formed in the top of the base. The outer wall of the limiting rod is in coaxial key connection with a limiting block, and the limiting rod is sleeved with a spring used for abutting against the limiting block. Limiting holes are formed in the inserting blocks, and the tail ends of the limiting rods are matched with the corresponding limiting holes in an inserted mode. Through the arrangement of the base, the connecting base, the liquid inlet pipe, the sealing cover and other structures, the sealing cover is detachably connected with the connecting base, when brake fluid is injected into different vehicle types, the sealing cover is detached, the sealing cover with a threaded cavity of the corresponding size is replaced to be connected with the connecting base, and then the sealing cover can be installed on an oil injection opening of a brake fluid storage tank; according to the design, the brake fluid filling device can be conveniently connected with oil filling ports of brake fluid storage tanks with different sizes, so that the brake fluid can be conveniently filled for different vehicle types, and the use requirements are met.

Description

Technical Field

[0001] This utility model relates to the technical field of brake fluid filling equipment, specifically a brake fluid filler connection structure. Background Technology

[0002] A brake fluid filler, also known as a brake fluid changer or brake oil change tool, uses an internal pump with precisely adjustable pressure to inject new brake fluid into every part of the braking system while simultaneously flushing out residual old fluid, ensuring the cleanliness and performance of the braking system. Currently, using a brake fluid filler requires connecting the device to the brake fluid reservoir's filler port via tubing to add brake fluid.

[0003] Utility model patent CN212289801U discloses a brake fluid replenishment device, which includes a brake fluid reservoir, a brake fluid reservoir cap, and a switch. The brake fluid reservoir is connected to a first interface of the switch via a first pipeline; the brake fluid reservoir cap is connected to a second interface of the switch via a second pipeline. The connection between the brake fluid reservoir and the brake fluid reservoir cap allows for automatic brake fluid replenishment during air bleeding, solving the problem of manually adding brake fluid to the reservoir after each wheel bleed, resulting in frequent refills. Furthermore, the threaded connection between the brake fluid reservoir cap and the compatible automotive reservoir ensures accurate injection of brake fluid, addressing the issue of spillage due to the small filler neck of the brake fluid reservoir.

[0004] Although this brake fluid replenishment device is convenient for adding brake fluid, it still has the following problems in practice: Because the installation space and location of the brake fluid reservoir often differ between different vehicle models, and the volume of brake fluid consumed during braking also varies, the volume and shape of the brake fluid reservoir generally vary significantly depending on the vehicle model, and the size of its filler neck may also differ. Furthermore, the brake fluid reservoir cap of this device can only be connected to a fixed-size filler neck, and the cap cannot be replaced. This makes it difficult to connect the cap to filler necks of different sizes, failing to meet the brake fluid filling needs of different vehicle models. Therefore, we propose a brake fluid refiller connection structure. Utility Model Content

[0005] The purpose of this invention is to provide a brake fluid filler connection structure to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A brake fluid filler connection structure includes a base, and a fixing hole is provided on the top of the base;

[0008] A connecting seat is fixed to the bottom of the base, and a fixing hole passes through the connecting seat. A fixing groove is opened on the top of the connecting seat, and the fixing groove passes through the connecting seat. Two brackets are fixed to the outer wall of the connecting seat, and a limiting rod is inserted through the bracket. One end of the limiting rod passes through the outer wall of the connecting seat and through the fixing groove. A limiting block is coaxially keyed to the outer wall of the limiting rod, and a spring is sleeved on the outside of the limiting rod to abut against the limiting block.

[0009] An inlet pipe for connecting a brake fluid filler is rotatably installed inside the fixing hole;

[0010] Below the connector is a sealing cap for connecting the brake fluid reservoir filler port. The bottom of the sealing cap has a threaded cavity. A vertical connecting pipe is also fixed to the sealing cap. Multiple oil outlet holes are opened at the bottom of the outer wall of the connecting pipe. The top of the connecting pipe is inserted into the bottom opening of the inlet pipe. Two inserts are fixed to the top of the sealing cap and are inserted into the fixing groove. Limiting holes are opened on the inserts. The end of the limiting rod is inserted into the corresponding limiting hole.

[0011] Preferably, the bottom end of the connecting seat is provided with a sealing groove, and a sealing ring is coaxially fixed on the top of the sealing cover, with the sealing ring and the sealing groove being inserted into each other.

[0012] Preferably, the bottom of the connector is provided with an installation groove; the outer wall of the liquid inlet pipe is coaxially fixed with limit rings on both the upper and lower sides, the upper limit ring abuts against the top of the base, and the lower limit ring is located in the installation groove.

[0013] Preferably, the inner wall of the fixing hole is provided with a plurality of sealing rings, and the overall shape of the sealing rings is annular.

[0014] Preferably, the bracket has a U-shaped cross-section and is fixedly connected to the outer wall of the connecting seat by bolts.

[0015] Preferably, a connector is installed at the top opening of the inlet pipe, and the connector is threadedly connected to the top end of the inlet pipe.

[0016] Preferably, a dial is fixed to one end of the limiting rod away from the insert block, and the dial is fixedly connected to the limiting rod by bolts.

[0017] Preferably, the sealing cap is tightly bonded to the connecting pipe, and both the sealing cap and the connecting pipe are made of plastic.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] The design incorporates a base, connector, inlet pipe, and sealing cap. The sealing cap and connector are detachably connected. When adding brake fluid to different vehicle models, the sealing cap is removed and replaced with one having a threaded cavity of the appropriate size. This allows the sealing cap to be installed on the brake fluid reservoir filler port. This design facilitates connection of the brake fluid filler to brake fluid reservoir filler ports of different sizes, making it convenient to add brake fluid to different vehicle models and meeting user needs. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a cross-sectional view of the overall structure of this utility model;

[0022] Figure 3 This is a cross-sectional view of the base structure in this utility model;

[0023] Figure 4 This is a schematic diagram of the limiting rod in this utility model;

[0024] Figure 5 This is a schematic diagram of the sealing cap structure in this utility model;

[0025] In the picture:

[0026] 1. Base; 10. Fixing hole; 11. Sealing ring;

[0027] 2. Connecting seat; 20. Fixing groove; 21. Mounting groove; 22. Sealing groove; 23. Bracket; 24. Limiting rod; 25. Dial head; 26. Limiting block; 27. Spring;

[0028] 3. Inlet pipe; 30. Limiting ring; 31. Connector;

[0029] 4. Sealing cap; 40. Threaded cavity; 41. Connecting pipe; 410. Oil outlet; 42. Insert block; 420. Limiting hole; 43. Sealing ring. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] This embodiment provides a technical solution:

[0032] Please see Figures 1-5As shown, a brake fluid filler connection structure includes a base 1 with a fixing hole 10 at its top; a connecting seat 2 is fixed to the bottom of the base 1, and the base 1 and the connecting seat 2 are fixedly connected by bolts, with the fixing hole 10 penetrating the connecting seat 2; a fixing groove 20 is formed at the top of the connecting seat 2, penetrating the connecting seat 2; two brackets 23 are fixed to the outer wall of the connecting seat 2, and a limiting rod 24 is inserted through the brackets 23, with one end of the limiting rod 24 passing through the outer wall of the connecting seat 2 and through the fixing groove 20; a limiting block 26 is coaxially keyed to the outer wall of the limiting rod 24, and a spring is sleeved on the outside of the limiting rod 24 to abut against the limiting block 26. Spring 27; An inlet pipe 3 for connecting a brake fluid filler is rotatably installed inside the fixing hole 10; A sealing cover 4 for connecting the brake fluid reservoir filling port is provided below the connecting seat 2. A threaded cavity 40 is opened at the bottom of the sealing cover 4. A vertical connecting pipe 41 is also fixed at the sealing cover 4. Multiple oil outlet holes 410 are opened at the bottom of the outer wall of the connecting pipe 41. The top of the connecting pipe 41 is inserted into the bottom opening of the inlet pipe 3; Two insert blocks 42 are fixed at the top of the sealing cover 4 and are inserted into the fixing groove 20. Limiting holes 420 are opened on the insert blocks 42. The end of the limiting rod 24 is inserted into the corresponding limiting hole 420.

[0033] In this embodiment, a sealing groove 22 is provided at the bottom of the connecting seat 2, and a sealing ring 43 is coaxially fixed at the top of the sealing cover 4. The sealing ring 43 is inserted into the sealing groove 22. The arrangement of the sealing ring 43 and the sealing groove 22 increases the tightness of the connection between the connecting seat 2 and the sealing cover 4, thereby improving the sealing performance of the device.

[0034] In this embodiment, the bottom of the connecting seat 2 is provided with an installation groove 21; the outer wall of the liquid inlet pipe 3 is coaxially fixed with limiting rings 30 on both the upper and lower sides. The upper limiting ring 30 abuts against the top of the base 1, and the lower limiting ring 30 is located in the installation groove 21. The limiting rings 30 limit the liquid inlet pipe 3, ensuring the installation stability and smooth rotation of the liquid inlet pipe 3.

[0035] In this embodiment, a plurality of sealing rings 11 are embedded in the inner wall of the fixing hole 10, and the overall shape of the sealing rings 11 is annular. The sealing rings 11 increase the sealing performance of the connection between the liquid inlet pipe 3 and the base 1, and prevent leakage.

[0036] In this embodiment, the bracket 23 has a U-shaped cross-section and is fixedly connected to the outer wall of the connecting seat 2 by bolts. The U-shaped bracket 23 has a better structure, while the bolt fixing method ensures the installation stability of the bracket 23.

[0037] In this embodiment, a connector 31 is installed at the top opening of the inlet pipe 3, and the connector 31 is threadedly connected to the top end of the inlet pipe 3. The connector 31 facilitates the connection of the brake fluid filler, improving the ease of installation.

[0038] In this embodiment, a dial 25 is fixed to the end of the limiting rod 24 away from the insert block 42, and the dial 25 is fixedly connected to the limiting rod 24 by bolts. The dial 25 facilitates pulling the limiting rod 24, improving the convenience of operation.

[0039] In this embodiment, the sealing cap 4 and the connecting tube 41 are tightly bonded together, and both the sealing cap 4 and the connecting tube 41 are made of plastic. The tight bonding method ensures the tight connection between the sealing cap 4 and the connecting tube 41, while the plastic material has the advantages of being easy to process and having low production costs.

[0040] It is understood that the threaded cavity 40 in this embodiment is not a fixed size. The sealing cap 4 with a threaded cavity 40 of the corresponding size can be produced according to the size of the brake fluid reservoir filling port of different models. When adding brake fluid to different models, the user can replace the sealing cap with a threaded cavity 40 of the corresponding size as needed.

[0041] It should be added that the inlet pipe 3 in this embodiment is rotatably connected to the fixing hole 10. This design allows the base 1, the connecting seat 2 and the sealing cover 4 to rotate. Therefore, by rotating the sealing cover 4, the sealing cover 4 can be tightened at the brake fluid reservoir filling port, which improves the convenience of operation.

[0042] In practical use, the user first pulls the dial 25 to both sides. The dial 25 drives the limiting rod 24 and the limiting block 26 to move to one side. The spring 27 is compressed by the limiting block 26. At this time, the end of the limiting rod 24 disengages from the limiting hole 420, and the limitation of the limiting rod 24 on the insert 42 is released. At this time, the user pushes the sealing cover 4 downward, and the insert 42 disengages from the fixing groove 20. The connecting pipe 41 disengages from the liquid inlet pipe 3. Then, the user takes out the sealing cover 4 with a threaded cavity 40 of appropriate size, inserts the insert 42 into the fixing groove 20, and inserts the connecting pipe 41 into the bottom opening of the liquid inlet pipe 3. At this time, the user releases the dials 25 on both sides. Under the elastic action of the spring 27, the limiting rod 24 moves inward. The end of the limiting rod 24 is inserted into the limiting hole 420 at the same time. The insert 42 is fixed with the fixing groove 20, and the sealing cover 4 is connected and fixed with the connecting seat 2.

[0043] When adding brake fluid, the user first tightens the sealing cap 4 through the threaded cavity 40 onto the filler port of the brake fluid reservoir. Then, the user connects the connector 31 to the outlet of the brake fluid filler. The brake fluid then enters the inlet pipe 3 and then enters the connecting pipe 41 through the inlet pipe 3. Finally, the brake fluid enters the brake fluid reservoir through the inlet pipe 3.

[0044] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A brake fluid filler connection structure, characterized in that: Includes a base (1), and a fixing hole (10) is provided on the top of the base (1); A connecting seat (2) is fixed at the bottom of the base (1), and a fixing hole (10) passes through the connecting seat (2). A fixing groove (20) is opened at the top of the connecting seat (2), and the fixing groove (20) passes through the connecting seat (2). Two brackets (23) are fixed on the outer wall of the connecting seat (2). A limiting rod (24) is passed through the bracket (23). One end of the limiting rod (24) passes through the outer wall of the connecting seat (2) and through the fixing groove (20). A limiting block (26) is coaxially keyed to the outer wall of the limiting rod (24). A spring (27) for pressing against the limiting block (26) is sleeved on the outside of the limiting rod (24). An inlet pipe (3) for connecting a brake fluid injector is rotatably installed inside the fixing hole (10); Below the connecting seat (2) is a sealing cap (4) for connecting the brake fluid reservoir filling port. The bottom of the sealing cap (4) has a threaded cavity (40). A vertical connecting pipe (41) is also fixed at the sealing cap (4). Multiple oil outlet holes (410) are opened at the bottom of the outer wall of the connecting pipe (41). The top of the connecting pipe (41) is inserted into the bottom opening of the inlet pipe (3). The top of the sealing cap (4) has two plugs (42) that are inserted into the fixing groove (20). Limiting holes (420) are opened on the plugs (42). The end of the limiting rod (24) is inserted into the corresponding limiting hole (420).

2. The brake fluid filler connection structure according to claim 1, characterized in that: The bottom end of the connecting seat (2) is provided with a sealing groove (22), and the top of the sealing cover (4) is coaxially fixed with a sealing ring (43), which is inserted into the sealing groove (22).

3. The brake fluid filler connection structure according to claim 1, characterized in that: The bottom of the connecting seat (2) is provided with an installation groove (21); the outer wall of the liquid inlet pipe (3) is coaxially fixed with limit rings (30) on both the upper and lower sides. The upper limit ring (30) abuts against the top of the base (1), and the lower limit ring (30) is located in the installation groove (21).

4. The brake fluid filler connection structure according to claim 1, characterized in that: The inner wall of the fixing hole (10) is fitted with a plurality of sealing rings (11), and the overall shape of the sealing rings (11) is annular.

5. The brake fluid filler connection structure according to claim 1, characterized in that: The cross-sectional shape of the bracket (23) is U-shaped, and the bracket (23) is fixedly connected to the outer wall of the connecting seat (2) by bolts.

6. The brake fluid filler connection structure according to claim 1, characterized in that: A connector (31) is installed at the top opening of the liquid inlet pipe (3), and the connector (31) is threadedly connected to the top end of the liquid inlet pipe (3).

7. The brake fluid filler connection structure according to claim 1, characterized in that: The end of the limiting rod (24) facing away from the insert block (42) is fixed with a dial (25), and the dial (25) is fixedly connected to the limiting rod (24) by bolts.

8. The brake fluid filler connection structure according to claim 1, characterized in that: The sealing cap (4) is tightly bonded to the connecting pipe (41), and both the sealing cap (4) and the connecting pipe (41) are made of plastic.

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