Vertical cylinder oil pressure disc brake upper pump

Abstract

The utility model discloses a vertical cylinder oil pressure disc brake upper pump which comprises a cylinder body, an oil pipe body, a brake handle and a piston assembly. The cylinder bodies are symmetrically arranged, so that the cylinder bodies are communicated left and right; an oil chamber oil way hole is formed in the cylinder body, and the piston assembly is arranged in the oil chamber oil way hole. The brake handle is rotationally arranged on the cylinder body, and the brake handle is connected with the other end of the piston assembly through a height adjusting structure; an oil cavity is formed in the cylinder body, and an oil cover assembly is arranged on the oil cavity. The oil cavity is communicated with the oil chamber oil way hole; the oil pipe body is arranged on the oil pipe connector of the cylinder body in a sealed mode. The height of the handle can be freely adjusted, individual requirements of different riders can be met, hand fatigue is reduced, riding comfort and safety are improved, and the bicycle handle is suitable for various types of riders such as common bicycles and folding bicycles.

Description

Technical Field

[0001] This utility model relates to the field of bicycle braking systems, specifically to a vertical cylinder hydraulic disc brake upper pump. Background Technology

[0002] Currently, there are many problems with hydraulic disc brake boosters on the bicycle market. Some brake levers have a fixed height, making them unadjustable to accommodate different riders' hand shapes, habits, and needs. This can easily lead to hand fatigue during long rides, affecting the riding experience and safety. Most brake levers have inflexible connection methods, resulting in high friction during rotation, slow braking response, and reduced braking efficiency. The cylinder lacks an effective venting design, allowing air to remain in the brake system, leading to unstable braking force and affecting braking performance.

[0003] Furthermore, the existing hydraulic disc brake pump's main structure typically lacks left-right compatibility, increasing production, inventory, and management costs. In addition, the external oil pipe structure has poor sealing performance, easily leading to oil leaks, which not only wastes brake fluid but also affects braking performance and the cleanliness of the bicycle. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a vertical cylinder hydraulic disc brake upper pump to solve the problems existing in the background art.

[0005] The present invention relates to a vertical cylinder hydraulic disc brake upper pump, which is achieved through the following technical solution, including a cylinder body, an oil pipe body, a brake handle, and a piston assembly.

[0006] The cylinder body is symmetrically arranged so that its left and right sides are interconnected; the cylinder body is provided with an oil chamber oil passage hole, and the piston assembly is located in the oil chamber oil passage hole; the brake handle is rotatably mounted on the cylinder body, and the brake handle is connected to the other end of the piston assembly through a height adjustment structure.

[0007] The cylinder body is provided with an oil chamber, and an oil cover assembly is provided on the oil chamber; the oil chamber is connected to the oil passage hole of the oil chamber; the main body of the oil pipe is sealed on the oil pipe interface of the cylinder body.

[0008] As a preferred technical solution, the height adjustment structure includes a rotating shaft and a push rod. The rotating shaft is rotatably connected to the brake handle via a bearing. The push rod is machined with external threads, one end of which is connected to a piston assembly, and the other end passes through the rotating shaft.

[0009] The other end of the push rod is provided with an internal hexagon countersunk hole. The height of the handle can be adjusted up and down by rotating the push rod with an internal hexagon wrench.

[0010] As a preferred technical solution, the piston assembly includes a spring and an upper pump piston;

[0011] An O-ring is provided at the upper end of the upper pump piston, and a V-ring is provided at the lower end of the upper pump piston; the spring is provided at the lower end of the upper pump piston, and the other end of the spring contacts the end of the oil passage hole in the oil chamber.

[0012] The upper pump piston is located inside the oil passage hole of the oil chamber, and a washer and a retaining ring are provided at the piston rod at the upper end of the upper pump piston.

[0013] As a preferred technical solution, vent holes are symmetrically arranged on the cylinder block, and the vent holes are located at the top of the cylinder block to ensure that air in the braking system can be effectively discharged; the vent holes are connected to vent screws; and a first oil seal is provided between the vent screws and the vent holes.

[0014] As a preferred technical solution, an oil pipe interface is provided on the cylinder block, and a locking nut is provided at the oil pipe interface. A clamping screw is provided on the oil pipe body. A copper sleeve is provided at the front end of the clamping screw, and a copper needle is provided inside the oil pipe interface. When the clamping screw is threadedly connected to the locking nut of the oil pipe interface, the copper sleeve is squeezed and deformed to hug the oil pipe body and at the same time fit against the conical surface of the oil pipe interface of the cylinder block, and the copper needle is placed inside the copper sleeve. Furthermore, the oil pipe interface adopts a conical surface seal and an O-ring seal to ensure a tight connection between the oil pipe body and the cylinder block and prevent brake fluid leakage.

[0015] As a preferred technical solution, the oil cap assembly includes an oil cup gasket and an oil cap body;

[0016] The oil cup gasket is placed inside the oil cavity, and the oil cap body is set on the oil cup gasket; the oil cup gasket and the oil cap body are fixed by oil cap fixing screws;

[0017] The cylinder body is symmetrically provided with oil injection holes, and the oil injection holes are corresponding to the positions of the oil chambers. Oil is injected into the oil chambers through the oil injection holes. An oil injection screw is provided on the oil injection hole, and a second oil seal is provided between the oil injection screw and the oil injection hole.

[0018] As a preferred technical solution, the front and back of the cylinder are fixed with an upper lock handle cover and a lower lock handle cover by lock handle screws; the upper lock handle cover and the lower lock handle cover are rotatably connected by a fixing pin.

[0019] As a preferred technical solution, the cylinder body is provided with a threaded fixing hole, the bearing is installed in the slot of the brake handle, and the handle fixing screw passes through the inner hole of the bearing and connects with the corresponding threaded hole on the cylinder body, thereby realizing the rotational connection of the brake handle.

[0020] The beneficial effects of this utility model are:

[0021] The handle height of this invention is freely adjustable, which can meet the personalized needs of different cyclists, reduce hand fatigue, and improve riding comfort and safety. It is suitable for various types of cyclists, such as ordinary bicycles and folding bikes.

[0022] This invention improves operation by using a brake handle bearing connection, increases braking response speed and service life of the handle connection, reduces maintenance costs, and ensures long-term stable operation of the bicycle braking system.

[0023] The cylinder of this invention has an exhaust port, which can effectively expel air from the braking system, ensure the stability of the braking effect, improve the braking safety of the bicycle, and is suitable for various road conditions and riding environments.

[0024] The oil pipe body of this invention improves sealing performance, prevents brake fluid leakage, and ensures the cleanliness of the bicycle and the reliability of the braking system. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0027] Figure 2 This is a schematic diagram of the exploded structure of this utility model;

[0028] Figure 3 This is a schematic diagram of the height adjustment structure of this utility model;

[0029] Figure 4 This is a schematic diagram of the oil chamber oil passage hole of this utility model;

[0030] Figure 5 This is a schematic diagram of the main body connection of the oil pipe of this utility model.

[0031] Explanation of reference numerals in the attached figures

[0032] 1. First oil seal; 2. Exhaust screw; 3. Oil pipe body; 4. Clamping screw; 5. Copper sleeve; 6. Copper needle; 7. Cylinder block; 8. Spring; 9. Upper pump piston; 10. Washer; 11. Snap ring; 12. Push rod; 13. Handle fixing screw; 14. Bearing; 15. Shaft; 16. Brake handle; 17. O-ring; 18. V-ring; 19. Oil cap fixing screw; 20. Oil cap body; 21. Oil cup gasket; 22. Second oil seal; 23. Oil filling screw; 24. Locking handle screw; 25. Upper locking handle cover; 26. Fixing pin; 27. Lower locking handle cover; 28. Oil chamber oil passage hole. Detailed Implementation

[0033] All features disclosed in this specification, or all steps in all disclosed methods or processes, may be combined in any way, except for mutually exclusive features and / or steps.

[0034] like Figures 1-5 As shown, the present invention provides a vertical cylinder hydraulic disc brake upper pump, which includes a cylinder body 7, an oil pipe body 3, a brake handle 16, and a piston assembly.

[0035] The cylinder body 7 is symmetrically arranged so that the left and right sides are interconnected. In the design of the cylinder body, the symmetry of the left and right installation is fully considered. The layout of each mounting hole, connection part and internal oil passage has the characteristics of left and right symmetry. This allows the same set of molds to produce products suitable for installation on the left and right sides of bicycles, which greatly reduces mold cost and production management cost, while reducing inventory pressure.

[0036] The cylinder body 7 is provided with an oil chamber oil passage hole 28, and the piston assembly is disposed in the oil chamber oil passage hole; the brake handle 16 is rotatably disposed on the cylinder body 7, and the brake handle 16 is connected to the other end of the piston assembly through a height adjustment structure.

[0037] The cylinder body 7 is provided with an oil chamber, and an oil cover assembly is provided on the oil chamber; the oil chamber is connected to the oil passage hole of the oil chamber; the oil pipe body 3 is sealed on the oil pipe interface of the cylinder body 7.

[0038] The brake lever is designed for one-finger operation, which conforms to ergonomic principles and allows riders to brake quickly and easily during riding, making it especially suitable for models such as crawler bikes that require frequent braking.

[0039] The height adjustment structure includes a rotating shaft 15 and a push rod 12. The rotating shaft 15 is rotatably connected to the brake handle 16 via a bearing 14. The push rod 12 is machined with external threads. One end of the push rod 12 is connected to the piston assembly, and the other end passes through the rotating shaft 15.

[0040] The other end of the push rod 12 is provided with an internal hexagon countersunk hole. By rotating the push rod 12 with an internal hexagon wrench, the height of the handle can be adjusted up and down.

[0041] The piston assembly includes a spring 8 and an upper pump piston 9.

[0042] An O-ring 17 is provided at the upper end of the upper pump piston 9, and a V-ring 18 is provided at the lower end of the upper pump piston 9; the spring 8 is provided at the lower end of the upper pump piston 9, and the other end of the spring 8 is in contact with the end of the oil passage hole in the oil chamber.

[0043] The upper pump piston 9 is disposed in the oil passage hole of the oil chamber, and a washer 10 and a retaining ring 11 are provided at the piston rod at the upper end of the upper pump piston 9.

[0044] The cylinder 7 is symmetrically provided with vent holes, which are located at the top of the cylinder 7 to ensure that air in the braking system can be effectively discharged. The vent holes are connected to vent screws 2. A first oil seal 1 is provided between the vent screws 2 and the vent holes. When air needs to be discharged, the vent screws are loosened, the brake lever is pressed, and the brake fluid discharges the air from the vent holes. Then the vent screws are tightened, which ensures the purity of the brake fluid in the braking system and improves the stability of the braking effect.

[0045] The cylinder block 7 is equipped with an oil pipe interface, and a locking nut is installed at the oil pipe interface. A clamping screw 4 is installed on the oil pipe body 3. A copper sleeve 5 is installed at the front end of the clamping screw 4, and a copper needle 6 is installed inside the oil pipe interface. When the clamping screw 4 is threadedly connected to the locking nut of the oil pipe interface, the copper sleeve 5 is compressed and deformed to clamp the oil pipe body 3 and simultaneously fit against the conical surface of the oil pipe interface of the cylinder block 7. The copper needle 6 is placed inside the copper sleeve 5. Furthermore, the oil pipe interface adopts a conical surface seal and an O-ring seal to ensure a tight connection between the oil pipe body 3 and the cylinder block 7 and prevent brake fluid leakage. The clamping screw and locking nut further strengthen the connection of the oil pipe body and improve the reliability of the connection.

[0046] In addition, the oil cap assembly includes an oil cup gasket 21 and an oil cap body 20;

[0047] The oil cup pad 21 is placed inside the oil cavity, and the oil cap body 20 is placed on the oil cup pad 21; the oil cup pad 21 and the oil cap body 20 are fixed by the oil cap fixing screw 19;

[0048] The cylinder body 7 is symmetrically provided with oil injection holes, and the oil injection holes are corresponding to the positions of the oil chambers. Oil is injected into the oil chambers through the oil injection holes. An oil injection screw 23 is provided on the oil injection hole, and a second oil seal 22 is provided between the oil injection screw 23 and the oil injection hole.

[0049] In addition, the front and back of the cylinder body 7 are fixed with an upper lock handle cover 25 and a lower lock handle cover 27 by lock handle screws 24; the upper lock handle cover 25 and the lower lock handle cover 27 are rotatably connected by a fixing pin 26.

[0050] In addition, the cylinder body 7 is provided with a threaded fixing hole, and the bearing 14 is installed in the slot of the brake handle 16. The handle fixing screw 13 passes through the inner hole of the bearing 14 and connects with the corresponding threaded hole on the cylinder body 7, thereby realizing the rotational connection of the brake handle 16. This can significantly reduce the friction when the handle rotates, making the braking operation smoother, improving the braking response speed, and extending the service life of the handle connection part, thus reducing maintenance costs.

[0051] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions conceived without inventive effort should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope defined in the claims.

Claims

1. A vertical cylinder hydraulic disc brake upper pump, characterized in that, Includes cylinder block (7), oil pipe body (3), brake handle (16) and piston assembly; The cylinder body (7) is symmetrically arranged so that its left and right sides are interconnected; the cylinder body (7) is provided with an oil chamber oil passage hole (28), and the piston assembly is located in the oil chamber oil passage hole (28); the brake handle (16) is rotatably mounted on the cylinder body (7), and the brake handle (16) is connected to the other end of the piston assembly through a height adjustment structure; The cylinder body (7) is provided with an oil chamber, and an oil cover assembly is provided on the oil chamber; the oil chamber is connected to the oil passage hole of the oil chamber; the oil pipe body (3) is sealed on the oil pipe interface of the cylinder body (7).

2. The vertical cylinder hydraulic disc brake upper pump according to claim 1, characterized in that: The height adjustment structure includes a rotating shaft (15) and a push rod (12). The rotating shaft (15) is rotatably connected to the brake handle (16) via a bearing (14). The push rod (12) is machined with external threads. One end of the push rod (12) is connected to the piston assembly, and the other end passes through the rotating shaft (15). The other end of the push rod (12) is provided with an internal hexagon countersunk hole. The height of the handle can be adjusted up and down by rotating the push rod (12) with an internal hexagon wrench.

3. The vertical cylinder hydraulic disc brake upper pump according to claim 1, characterized in that: The piston assembly includes a spring (8) and an upper pump piston (9); An O-ring (17) is provided at the upper end of the upper pump piston (9), and a V-ring (18) is provided at the lower end of the upper pump piston (9); the spring (8) is provided at the lower end of the upper pump piston (9), and the other end of the spring (8) is in contact with the end of the oil passage hole in the oil chamber. The upper pump piston (9) is located in the oil passage hole of the oil chamber, and a washer (10) and a snap ring (11) are provided at the piston rod at the upper end of the upper pump piston (9).

4. The vertical cylinder hydraulic disc brake upper pump according to claim 1, characterized in that: The cylinder (7) is symmetrically provided with exhaust holes, which are located at the top of the cylinder (7) to ensure that air in the braking system can be effectively discharged; the exhaust holes are connected to exhaust screws (2); a first oil seal (1) is provided between the exhaust screws (2) and the exhaust holes.

5. The vertical cylinder hydraulic disc brake upper pump according to claim 1, characterized in that: The cylinder body (7) is provided with an oil pipe interface, and a locking nut is provided at the oil pipe interface. A clamping screw (4) is provided on the oil pipe body (3). A copper sleeve (5) is provided at the front end of the clamping screw (4), and a copper needle (6) is provided inside the oil pipe interface. When the clamping screw is threadedly connected to the locking nut of the oil pipe interface, the copper sleeve (5) is squeezed and deformed to hug the oil pipe body (3) and at the same time fits against the conical surface of the oil pipe interface of the cylinder body (7). The copper needle (6) is placed inside the copper sleeve (5). By using conical surface sealing and O-ring sealing at the oil pipe interface, the oil pipe body (3) is tightly connected to the cylinder body (7) to prevent brake fluid leakage.

6. The vertical cylinder hydraulic disc brake upper pump according to claim 1, characterized in that: The oil cap assembly includes an oil cup gasket (21) and an oil cap body (20); The oil cup pad (21) is placed inside the oil cavity, and the oil cap body (20) is placed on the oil cup pad (21); the oil cup pad (21) and the oil cap body (20) are fixed by the oil cap fixing screw (19); The cylinder body (7) is symmetrically provided with oil injection holes, and the oil injection holes are corresponding to the positions of the oil chambers. Oil is injected into the oil chambers through the oil injection holes. An oil injection screw (23) is provided on the oil injection hole, and a second oil seal (22) is provided between the oil injection screw (23) and the oil injection hole.

7. The vertical cylinder hydraulic disc brake upper pump according to claim 1, characterized in that: The cylinder body (7) has an upper lock handle cover (25) and a lower lock handle cover (27) fixed on its front and back sides by lock handle screws (24); the upper lock handle cover (25) and the lower lock handle cover (27) are rotatably connected by a fixing pin (26).

8. The vertical cylinder hydraulic disc brake upper pump according to claim 1, characterized in that: The cylinder body (7) is provided with a threaded fixing hole. The bearing (14) is installed in the slot of the brake handle (16). The handle fixing screw (13) passes through the inner hole of the bearing (14) and connects with the corresponding threaded hole on the cylinder body (7), thereby realizing the rotational connection of the brake handle (16).

Images