Brake fluid oil pot cover fixing structure
By introducing a fixing and adjusting device into the brake fluid reservoir cap, the problem of reduced sealing effect caused by vibration and impact loosening of the brake fluid reservoir cap is solved, achieving a more stable sealing effect and preventing leakage.
Patent Information
- Application Number
- CN202423255113.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-28
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-28
AI Technical Summary
Brake fluid reservoir caps can easily loosen under vibration and impact, reducing their sealing effectiveness and potentially causing brake fluid leakage.
A brake fluid reservoir cap structure including a fixing device and an adjusting device was designed. The fixing device achieves secondary fixation through a combination of a locking block, a limiting block, and a spring. The adjusting device achieves tight fit of the sealing block through a combination of bolts and a sliding block.
It effectively prevents the brake fluid reservoir cap from loosening under vibration and impact, improves the sealing effect, avoids brake fluid leakage, and ensures the stability of vehicle use.
Smart Images

Figure CN223618717U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of brake fluid reservoir cap fixing structure, and in particular to brake fluid reservoir cap fixing structure. Background Technology
[0002] The brake fluid reservoir cap is a component that covers the upper part of the brake fluid reservoir. Its main function is to seal and protect the brake fluid inside the reservoir. It is usually fixed to the brake fluid reservoir in some way to ensure that the brake fluid does not leak.
[0003] When the brake fluid reservoir cap is screwed onto the brake fluid reservoir body for sealing, over time, the internal sealing gasket of the brake fluid reservoir cap may age or lose its elasticity. This can cause the brake fluid reservoir cap to loosen at the inlet due to poor sealing. Additionally, the vehicle is subjected to various vibrations and impacts during driving, which can also gradually loosen the brake fluid reservoir cap, reducing the sealing effect at the inlet and potentially causing brake fluid leakage. Utility Model Content
[0004] The technical problem this invention aims to solve is that vibration and impact may gradually cause the brake fluid reservoir cap to loosen, reducing the sealing effect at the inlet of the brake fluid reservoir and potentially causing brake fluid leakage.
[0005] The technical solution adopted by this utility model to solve its technical problem is: a brake fluid reservoir cap fixing structure, including a brake fluid reservoir body and a brake fluid reservoir cap body. The inner wall of the brake fluid reservoir cap body is threadedly connected to the outer surface of the inlet of the brake fluid reservoir body. A fixing device is provided between the outer surface of the inlet of the brake fluid reservoir body and one side of the brake fluid reservoir cap body. An adjustment device is provided on the inner wall of the brake fluid reservoir cap body. The fixing device can perform secondary fixing and limiting of the brake fluid reservoir cap body screwed on at the inlet of the brake fluid reservoir body.
[0006] Preferably, the fixing device includes two locking blocks. A U-shaped block is symmetrically fixedly connected to the outer surface of the inlet of the brake fluid reservoir body. A round shaft is rotatably connected to the inner wall of the U-shaped block. A limit block is fixedly connected to the outer surface of the round shaft. One side of the limit block abuts against one side of the brake fluid reservoir cap body. The inner wall of one end of the limit block is slidably connected to the outer surface of one end of the locking block. A spring is sleeved on the outer surface of one end of the locking block. The two ends of the spring are fixedly connected to one side of the locking block and one side of the limit block, respectively. A plurality of locking slots are opened on one side of the brake fluid reservoir cap body. One end of the locking block is inserted into the inner wall of the locking slot.
[0007] The effect achieved by the above-mentioned components is as follows: By setting up a fixing device, when the brake fluid reservoir body is installed on the vehicle for use, after a certain amount of brake fluid is filled into the brake fluid reservoir body, the brake fluid reservoir cap body is screwed onto the outer surface of the brake fluid reservoir body inlet to seal it. To prevent the brake fluid reservoir cap body from loosening due to various vibrations and impacts during vehicle operation, the locking block can be manually pulled to one end to a certain position in the inner wall of the limiting block, causing the spring to be stretched open. Then, the limiting block is rotated to a certain angle in the inner wall of the U-shaped block by means of a round shaft, and one end of it abuts against one side of the brake fluid reservoir cap body. This releases the locking block, allowing it to be locked into the slot on the brake fluid reservoir cap body under the return action of the spring, thus fixing the limiting block and making it more securely fixed to the brake fluid reservoir cap body. This prevents the brake fluid reservoir cap body from loosening during use, improves the sealing effect, and avoids brake fluid leakage that could affect vehicle use.
[0008] Preferably, one end of the locking block has an angled opening, and the angled opening is located at the end away from the spring.
[0009] The effect achieved by the above-mentioned components is as follows: by setting one end of the locking block to be angled, when the limiting block is used to limit the brake fluid reservoir cover body, it is not necessary to pull the locking block first. You only need to rotate the limiting block directly. Then, when the side of the locking block with the angled part abuts against the outer surface of the brake fluid reservoir cover body, it is convenient for the brake fluid reservoir cover body to push against it and retract into the inner wall of the limiting block, which facilitates the installation and fixation of the limiting block.
[0010] Preferably, a pull block is fixedly connected to one side of the card block, and the longitudinal section of the pull block is semi-circular.
[0011] The effect achieved by the above components is that by setting up the pull block, the contact area at one end of the block can be increased, making it easier to manually grasp and pull one end.
[0012] Preferably, the adjusting device includes a bolt, a threaded hole is provided on one side of the inner wall of the brake fluid reservoir cap body, the inner wall of the threaded hole is threadedly connected to the outer surface of the bolt, a sliding block is rotatably connected to one end of the bolt, the outer surface of the sliding block is slidably connected to the inner wall of the brake fluid reservoir cap body, and a sealing block is fixedly connected to one side of the sliding block.
[0013] The effect achieved by the above-mentioned components is as follows: By setting an adjustment device, if the sealing block ages and does not fit tightly against the inlet of the brake fluid reservoir body after the brake fluid reservoir body has been used for a long time, the bolt can be rotated to move it spirally to one end in the inner wall of the threaded hole to a certain position. This will cause the sliding block and the sealing block to slide to one end in the inner wall of the brake fluid reservoir body, squeezing the sealing block so that it can fit more tightly against the inlet of the brake fluid reservoir body, improving the sealing effect, and preventing the brake fluid reservoir body from becoming loose due to poor sealing. This improves the sealing performance of the brake fluid reservoir body and avoids brake fluid leakage that may affect vehicle use.
[0014] Preferably, a bearing is fixedly connected to the outer surface of one end of the bolt, and the outer ring of the bearing is fixedly connected to one side of the sliding block.
[0015] The effect achieved by the above components is that by setting bearings, rotational wear between bolts and sliding blocks can be reduced, thereby increasing the service life of both.
[0016] Preferably, a plurality of screw blocks are fixedly connected to the outer surface of one end of the bolt, and the plurality of screw blocks are arranged at equal intervals.
[0017] The effect achieved by the above components is that by setting the screw block, the contact area at one end of the bolt can be increased, making it easier to manually hold and tighten it.
[0018] Preferably, the outer surface of the sliding block is symmetrically fixedly connected with protrusions, and the inner wall of the brake fluid reservoir cap body is symmetrically provided with grooves, and the grooves are slidably connected to the protrusions.
[0019] The effect achieved by the above components is that by setting protrusions and grooves, the sliding block can be limited so that it does not rotate as the bolt is tightened, thereby improving the stability of operation and making it less prone to shaking.
[0020] The beneficial effects of this utility model are:
[0021] The fixing device can further fix and limit the brake fluid reservoir cap, which is screwed onto the inlet of the brake fluid reservoir body, so that it is not easy to loosen due to long-term vibration and impact in the operating environment during use, thereby improving the sealing effect and preventing brake fluid leakage from affecting vehicle use. Attached Figure Description
[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0023] Figure 1 This is a schematic diagram of the structure of this utility model.
[0024] Figure 2 This is a three-dimensional structural diagram of the brake fluid reservoir body of this utility model;
[0025] Figure 3 for Figure 2 A three-dimensional schematic diagram of a local structure;
[0026] Figure 4 This is a three-dimensional structural diagram of the main body of the brake fluid reservoir cap of this utility model.
[0027] Legend: 1. Brake fluid reservoir body; 2. Fixing device; 3. Adjusting device; 4. Brake fluid reservoir cap body; 21. U-shaped block; 22. Round shaft; 23. Limiting block; 24. Locking block; 25. Spring; 26. Locking groove; 27. Pulling block; 31. Threaded hole; 32. Bolt; 33. Sliding block; 34. Sealing block; 35. Bearing; 36. Tightening block; 37. Protrusion; 38. Groove. Detailed Implementation
[0028] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.
[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0030] Figure 1-4 The brake fluid reservoir cap fixing structure shown includes a brake fluid reservoir body 1 and a brake fluid reservoir cap body 4. The inner wall of the brake fluid reservoir cap body 4 is threadedly connected to the outer surface of the inlet of the brake fluid reservoir body 1. A fixing device 2 is provided between the outer surface of the inlet of the brake fluid reservoir body 1 and one side of the brake fluid reservoir cap body 4. An adjusting device 3 is provided on the inner wall of the brake fluid reservoir cap body 4. The fixing device 2 can perform secondary fixing and limiting of the brake fluid reservoir cap body 4 screwed onto the inlet of the brake fluid reservoir body 1.
[0031] Figure 2 and Figure 3The fixing device 2 shown includes two locking blocks 24. A U-shaped block 21 is symmetrically fixedly connected to the outer surface of the inlet of the brake fluid reservoir body 1. A round shaft 22 is rotatably connected to the inner wall of the U-shaped block 21. A limit block 23 is fixedly connected to the outer surface of the round shaft 22. One side of the limit block 23 abuts against one side of the brake fluid reservoir cover body 4. The inner wall of one end of the limit block 23 is slidably connected to the outer surface of one end of the locking block 24. A spring 25 is sleeved and connected to the outer surface of one end of the locking block 24. The two ends of the spring 25 are fixedly connected to one side of the locking block 24 and one side of the limit block 23, respectively. Several slots 26 are opened on one side of the brake fluid reservoir cover body 4. One end of the locking block 24 is inserted into the inner wall of the slot 26. When the brake fluid reservoir body 1 is installed on the vehicle, a certain amount of brake fluid is added inside. Then, the brake fluid reservoir cap body 4 is screwed onto the outer surface of the inlet of the brake fluid reservoir body 1 to seal it. To prevent the brake fluid reservoir cap body 4 from loosening due to various vibrations and impacts during vehicle operation, the locking block 24 can be manually pulled to one end to a certain position within the inner wall of the limiting block 23, causing the spring 25 to be stretched open. Then, the limiting block 23 is moved in a U-shape using the round shaft 22. After the inner wall of block 21 is rotated to a certain angle, one side of one end abuts against one side of the brake fluid reservoir cap body 4. This is because the locking block 24 is released, and under the reset action of the spring 25, one end can be locked into the locking groove 26 on the brake fluid reservoir cap body 4, fixing the limiting block 23. This makes the limiting block 23 more firmly fixed to the brake fluid reservoir cap body 4, thereby preventing the brake fluid reservoir cap body 4 from becoming loose during use, improving the sealing effect, and avoiding brake fluid leakage that could affect vehicle use.
[0032] Figure 2 and Figure 3 The locking block 24 shown has an angled end, located away from the spring 25. By angled one end of the locking block 24, when the brake fluid reservoir cap body 4 is positioned using the limiting block 23, it is not necessary to pull the locking block 24 first. Simply rotate the limiting block 23, and the angled side of the locking block 24 will abut against the outer surface of the brake fluid reservoir cap body 4, allowing the brake fluid reservoir cap body 4 to push against it and retract into the inner wall of the limiting block 23, facilitating the installation and fixation of the limiting block 23. A pull block 27 is fixedly connected to one side of the locking block 24, with a semi-circular cross-section. The pull block 27 increases the contact area at one end of the locking block 24, making it easier to manually grasp and pull that end.
[0033] Figure 4The adjustment device 3 shown includes a bolt 32. A threaded hole 31 is provided on one side of the inner wall of the brake fluid reservoir cap body 4. The inner wall of the threaded hole 31 is threadedly connected to the outer surface of the bolt 32. A sliding block 33 is rotatably connected to one end of the bolt 32. The outer surface of the sliding block 33 is slidably connected to the inner wall of the brake fluid reservoir cap body 4. A sealing block 34 is fixedly connected to one side of the sliding block 33. If, after prolonged use, the sealing block 34 ages and no longer fits tightly against the inlet of the brake fluid reservoir body 1, the bolt 32 can be rotated to move it spirally to one end within the threaded hole 31. This causes the sliding block 33 and the sealing block 34 to slide to one end within the inner wall of the brake fluid reservoir body 4, compressing the sealing block 34 and ensuring a tighter fit against the inlet of the brake fluid reservoir body 1. This improves the sealing effect and prevents the brake fluid reservoir body 4 from becoming loose due to poor sealing, thus enhancing the sealing performance of the brake fluid reservoir body 4 and preventing brake fluid leakage that could affect vehicle operation.
[0034] Figure 4 A bearing 35 is fixedly connected to the outer surface of one end of the bolt 32 shown, and the outer ring of the bearing 35 is fixedly connected to one side of the sliding block 33. By setting the bearing 35, the rotational wear between the bolt 32 and the sliding block 33 can be reduced, and the service life of both can be improved. Several screw blocks 36 are fixedly connected to the outer surface of one end of the bolt 32, and the screw blocks 36 are arranged at equal intervals. By setting the screw blocks 36, the contact area of one end of the bolt 32 can be increased, making it easier to hold and tighten manually. Protrusions 37 are symmetrically fixedly connected to the outer surface of the sliding block 33, and grooves 38 are symmetrically opened on the inner wall of the brake fluid reservoir cap body 4. The grooves 38 are slidably connected to the protrusions 37. By setting the protrusions 37 and the grooves 38, the sliding block 33 can be limited, so that it does not rotate with the tightening of the bolt 32, improving the stability of operation and making it less prone to shaking.
[0035] Working principle: When the brake fluid reservoir body 1 is installed on the vehicle, a certain amount of brake fluid is added inside. Then, the brake fluid reservoir cap body 4 is screwed onto the outer surface of the inlet of the brake fluid reservoir body 1 to seal it. To prevent the brake fluid reservoir cap body 4 from loosening due to various vibrations and impacts during vehicle operation, the locking block 24 can be manually pulled to one end to a certain position within the inner wall of the limiting block 23, causing the spring 25 to be stretched open. Then, the limiting block 23 is moved back to the starting position using the round shaft 22. After the U-shaped block 21 rotates to a certain angle within its inner wall, one end abuts against one side of the brake fluid reservoir cap body 4. This releases the locking block 24, allowing it to be reset by the spring 25, so that one end can be inserted into the locking groove 26 on the brake fluid reservoir cap body 4, thus fixing the limiting block 23. This makes the limiting block 23 more securely fixed to the brake fluid reservoir cap body 4, preventing the brake fluid reservoir cap body 4 from becoming loose during use, improving the sealing effect, and avoiding brake fluid leakage that could affect vehicle operation.
[0036] If, after prolonged use, the sealing block 34 ages and no longer fits tightly against the inlet of the brake fluid reservoir body 1, the bolt 32 can be rotated to move it spirally to one end within the threaded hole 31. This causes the sliding block 33 and the sealing block 34 to slide to one end within the inner wall of the brake fluid reservoir body 4, compressing the sealing block 34 and ensuring a tighter fit against the inlet of the brake fluid reservoir body 1. This improves the sealing effect and prevents the brake fluid reservoir body 4 from becoming loose due to poor sealing, thus enhancing the sealing performance of the brake fluid reservoir body 4 and preventing brake fluid leakage that could affect vehicle operation.
[0037] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.
Claims
1. A brake fluid reservoir cap fixing structure, comprising a brake fluid reservoir body (1) and a brake fluid reservoir cap body (4), characterized in that: The inner wall of the brake fluid reservoir cap body (4) is threadedly connected to the outer surface of the inlet of the brake fluid reservoir body (1). A fixing device (2) is provided between the outer surface of the inlet of the brake fluid reservoir body (1) and one side of the brake fluid reservoir cap body (4). An adjusting device (3) is provided on the inner wall of the brake fluid reservoir cap body (4). The fixing device (2) can perform secondary fixing and limiting of the brake fluid reservoir cap body (4) screwed on at the inlet of the brake fluid reservoir body (1).
2. The brake fluid reservoir cap fixing structure according to claim 1, characterized in that: The fixing device (2) includes two locking blocks (24). A U-shaped block (21) is symmetrically fixedly connected to the outer surface of the inlet of the brake fluid reservoir body (1). A round shaft (22) is rotatably connected to the inner wall of the U-shaped block (21). A limit block (23) is fixedly connected to the outer surface of the round shaft (22). One side of the limit block (23) abuts against one side of the brake fluid reservoir cover body (4). The inner wall of one end of the limit block (23) is slidably connected to the outer surface of one end of the locking block (24). A spring (25) is sleeved and connected to the outer surface of one end of the locking block (24). The two ends of the spring (25) are fixedly connected to one side of the locking block (24) and one side of the limit block (23), respectively. Several slots (26) are opened on one side of the brake fluid reservoir cover body (4). One end of the locking block (24) is inserted into the inner wall of the slot (26).
3. The brake fluid reservoir cap fixing structure according to claim 2, characterized in that: One end of the locking block (24) is provided with an angle, which is located at the end away from the spring (25).
4. The brake fluid reservoir cap fixing structure according to claim 2, characterized in that: A pull block (27) is fixedly connected to one side of the card block (24), and the longitudinal section of the pull block (27) is semi-circular.
5. The brake fluid reservoir cap fixing structure according to claim 1, characterized in that: The adjusting device (3) includes a bolt (32). A threaded hole (31) is provided on one side of the inner wall of the brake fluid reservoir body (4). The inner wall of the threaded hole (31) is threadedly connected to the outer surface of the bolt (32). A sliding block (33) is rotatably connected to one end of the bolt (32). The outer surface of the sliding block (33) is slidably connected to the inner wall of the brake fluid reservoir body (4). A sealing block (34) is fixedly connected to one side of the sliding block (33).
6. The brake fluid reservoir cap fixing structure according to claim 5, characterized in that: A bearing (35) is fixedly connected to the outer surface of one end of the bolt (32), and the outer ring of the bearing (35) is fixedly connected to one side of the sliding block (33).
7. The brake fluid reservoir cap fixing structure according to claim 5, characterized in that: A plurality of screw blocks (36) are fixedly connected to the outer surface of one end of the bolt (32), and the plurality of screw blocks (36) are arranged at equal distances.
8. The brake fluid reservoir cap fixing structure according to claim 5, characterized in that: The outer surface of the sliding block (33) is symmetrically fixed with protrusions (37), and the inner wall of the brake fluid reservoir cap body (4) is symmetrically provided with grooves (38), and the grooves (38) are slidably connected with the protrusions (37).