Bowl set of bicycle shaft core system capable of being quickly screwed

Abstract

The utility model discloses a bowl set of a bicycle shaft core system capable of being quickly screwed, which comprises a middle shaft, and an upper bowl body and a lower bowl body are respectively arranged above and below the middle shaft. By installing the balls and the like, when the device is used, self-rotation of the upper bearing and the lower bearing can be achieved through a movable structure formed by the limiting sliding cavities formed in the middle positions of the upper bearing and the lower bearing and the balls, and when the upper bowl body and the lower bowl body complete rotation movement along with the upper bearing and the lower bearing, the balls roll through the limiting sliding cavities, so that rotation of the upper bowl body and the lower bowl body is achieved. At the moment, the lubricating oil falling on the limiting sliding cavity and the balls through the oil guide ports based on the gravity effect can be continuously brought out to the movable parts of the upper bearing and the lower bearing along the rolling of the balls, so that the rotary movable structures of the upper bearing and the lower bearing can be well lubricated, and the friction resistance influence during rolling is reduced; and corrosion and abrasion can be reduced, so that the flexibility of the bowl group structure is improved, and the service life of the bowl group structure is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of bicycle axle core system structures, in particular to a bowl set of a bicycle axle core system capable of rapid screwing. Background Art

[0002] The bicycle axle system is one of the core components of the bicycle drive system, and the headset is a rotatable connecting component in the bicycle axle system. However, there are still some defects in the specific use of the headset of the bicycle axle system.

[0003] For example, a bicycle axle core system bowl set disclosed in application No. 201920461637.9, the axle core system includes a middle shaft, a middle tube placed outside the middle shaft, bearings located on both sides of the middle tube, and a bowl set located outside the bearing. The bowl set includes a bowl set body and a side cover. The bowl set body and the bearing are clearance-fitted. A thread is processed on the outer wall of the bowl set body. When the axle core system is installed on the bicycle frame, the bowl set body is clamped with the outer circle of the bearing through radial deformation to achieve interference fitting. An annular groove is processed in the middle of the side cover, and an outer groove and an inner groove are also processed on the side cover. The bowl set body and the bearing are clearance-fitted. It is very labor-saving to install the bearing into the bowl set body. When the system is screwed onto the frame, the main body of the headset deforms radially to achieve interference fit with the bearing, and the bearing plays a rolling role. A recessed groove is processed in the middle of the side cover for placing a reverse lip sealing ring. The side cover is processed with an outer groove and an inner groove, and a special tool is used to act on the outer groove or the inner groove to facilitate the side cover to be screwed onto the frame; however, it still has the problem of cumbersome assembly structure and difficulty in achieving rapid screwing and assembly. In addition, when the rotating movable parts on the headset move, the friction resistance is large and it is easy for rainwater to penetrate, which makes the headset structure prone to rust. Based on this, we propose a new headset with a quick-screwing bicycle axle core system to provide better use effect. Utility Model Content

[0004] The purpose of the present invention is to provide a bicycle headset with a quick-screw-on axle system to solve the problems mentioned above.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a bowl group of a bicycle axle core system that can be quickly screwed together, including a middle shaft, an upper bowl body and a lower bowl body are respectively installed above and below the middle shaft, an upper bearing is welded to the bottom of the upper bowl body, and a lower bearing is welded to the top of the lower bowl body, and tin soldering layers matching the upper bearing and the lower bearing are respectively provided on the upper bowl body and the lower bowl body, a mounting tube is welded to the top and bottom of the middle shaft, an internal threaded screw-on area that is threadedly connected to the mounting tube is provided inside the bottom end of the upper bearing and the top end of the lower bearing, a waterproof protective cover matching the upper bearing and the lower bearing is installed on the outer wall of the middle shaft, a lubricating oil storage shell is welded to the top of the inner top of the upper bearing and the lower bearing, a limiting sliding cavity and a ball are provided at the middle position of the upper bearing and the lower bearing, and oil guide ports are evenly provided between the lubricating oil storage shell and the limiting sliding cavity.

[0006] Preferably, a threaded external interface is provided at the middle position of the top of the upper bowl body and the middle position of the bottom of the lower bowl body, so that it is convenient to realize the threaded assembly of the bowl group structure and the bicycle axle core structure through the threaded external interface.

[0007] Preferably, the inner side wall of the threaded external interface is vulcanized with a non-slip silicone layer, which improves the non-slip and stable performance of the threaded external interface.

[0008] Preferably, an external threaded mounting area is provided on the central shaft, and a mounting groove threadedly connected to the external threaded mounting area is provided inside the waterproof protective cover, so as to facilitate the rapid disassembly and assembly of the waterproof protective cover.

[0009] Preferably, a refueling pipe is fixed to the top end of the lubricating oil storage housing.

[0010] Preferably, a rubber hose is threadedly connected to the refueling reserve pipe, and a pipe clamp is sleeved on the rubber hose.

[0011] Preferably, the upper bearing and the lower bearing both form a self-rotating structure through a limiting sliding cavity and a ball bearing, and the longitudinal section of the waterproof protective cover is trapezoidal.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] (1) The bowl assembly of the bicycle axle core system that can be quickly screwed together optimizes its own structure by installing a lower bearing, etc. The user first uses the solder layer on the upper bowl body and the lower bowl body to realize the welding pre-assembly of the upper bearing and the upper bowl body, and the lower bearing and the lower bowl body in the processing plant. Through this pre-assembly structure, the installation steps of subsequent buyers are reduced. During subsequent installation, the user only needs to use the threaded connection between the mounting tube on the middle axis and the internal threaded screw-on area on the upper bearing and the lower bearing to realize the rapid screw-on assembly between the upper bowl body, the lower bowl body and the middle axis. After the screw-on assembly is completed, the upper bowl body and the lower bowl body can be rotated along the middle axis. This optimizes the assembly structure of the bowl assembly and facilitates the user to quickly screw and disassemble and use it for maintenance.

[0014] (2) The bowl assembly of the bicycle axle system that can be quickly screwed on is equipped with balls, etc., so that the bowl assembly structure optimizes its own performance. On the one hand, the upper bearing and the lower bearing can realize the self-rotation of the upper bearing and the lower bearing by using the movable structure composed of the limit sliding cavity and the balls set at the middle position. When the upper bowl body and the lower bowl body complete the rotation activity along with the upper bearing and the lower bearing, the balls roll through the limit sliding cavity. At this time, the lubricating oil that falls into the limit sliding cavity and the balls through the oil guide port due to the action of gravity will be continuously brought out to the movable parts of the upper bearing and the lower bearing along with the rolling of the balls. The rotating movable structure of the upper and lower bearings can be well lubricated, thereby reducing the frictional resistance during rolling and reducing rust and wear, thereby improving the flexibility and service life of the headset structure. On the other hand, a waterproof protective cover is fixed to the outer wall of the middle end of the center shaft through a threaded connection structure. The longitudinal cross-section of the waterproof protective cover is trapezoidal, which facilitates the protection of the upper and lower bearings and prevents rainwater from penetrating into the limited sliding cavity and causing contamination. It is conducive to the downward discharge of rainwater along the outer wall of the waterproof protective cover, further improving the anti-rust protection.

[0015] (3) The bowl assembly of the bicycle axle core system that can be quickly screwed together is provided with an external threaded screw-on area, etc., so that when the bowl assembly structure is specifically used, on the one hand, by providing the external threaded screw-on area on the central axis and providing a mounting groove threadedly connected to the external threaded screw-on area inside the waterproof protective cover, it is convenient to quickly disassemble and assemble the waterproof protective cover on the central axis through the spiral connection structure; on the other hand, by providing a threaded external interface at the middle position of the top of the upper bowl body and the middle position of the bottom of the lower bowl body, it is convenient for the user to realize the threaded screwing assembly of the bowl assembly structure and the bicycle axle core structure through the threaded external interface. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the top view of the structure of the utility model;

[0018] Figure 3 This is a schematic diagram of a partial cross-sectional structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the cross-sectional structure of the upper bearing of the present invention from the front view.

[0020] In the figure: 1. Upper bowl; 2. Waterproof protective cover; 3. Lower bowl; 4. Threaded external interface; 5. Pipe clamp; 6. Rubber hose; 7. Upper bearing; 8. Middle shaft; 9. Lower bearing; 10. Soldering layer; 11. External threaded mounting area; 12. Mounting groove; 13. Mounting tube; 14. Oil guide port; 15. Internal threaded mounting area; 16. Limiting slide cavity; 17. Lubricating oil storage housing; 18. Ball bearing; 19. Oiling reserved tube. DETAILED DESCRIPTION

[0021] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0022] See also Figure 1-4 The present invention provides an embodiment of a bicycle headset with a quick-screw-on axle system, comprising a center axle 8, an upper bowl body 1 and a lower bowl body 3 mounted above and below the center axle 8, an upper bearing 7 welded to the bottom of the upper bowl body 1, and a lower bearing 9 welded to the top of the lower bowl body 3;

[0023] The upper bowl body 1 and the lower bowl body 3 are respectively provided with a solder layer 10 that matches the upper bearing 7 and the lower bearing 9;

[0024] Mounting tubes 13 are welded to the top and bottom of the middle shaft 8. Internal threaded mounting areas 15 are provided on the bottom of the upper bearing 7 and the top of the lower bearing 9, respectively, and are threadedly connected to the mounting tubes 13.

[0025] When in use, the user first uses the solder layer 10 on the upper bowl body 1 and the lower bowl body 3 to realize the welding pre-assembly of the upper bearing 7 and the upper bowl body 1, and the lower bearing 9 and the lower bowl body 3 in the processing factory. Through this pre-assembly structure, the installation steps of subsequent buyers are reduced. During subsequent installation, the user only needs to use the threaded connection between the mounting tube 13 on the middle shaft 8 and the internal threaded screw-on area 15 on the upper bearing 7 and the lower bearing 9 to realize the rapid screw-on assembly between the upper bowl body 1 and the lower bowl body 3 and the middle shaft 8. After the screw-on assembly is completed, the upper bowl body 1 and the lower bowl body 3 can be rotated along the middle shaft 8. This optimizes the assembly structure of the bowl set structure, facilitates the user's rapid screw-on and disassembly, and is convenient for inspection and maintenance.

[0026] A waterproof protective cover 2 is mounted on the outer wall of the central shaft 8, matching the upper and lower bearings 7, 9. A lubricating oil storage housing 17 is welded to the top of each of the upper and lower bearings 7, 9. A limiting sliding cavity 16 and a ball bearing 18 are provided in the middle of each of the upper and lower bearings 7, 9. Oil guide ports 14 are evenly spaced between the lubricating oil storage housing 17 and the limiting sliding cavity 16.

[0027] A refueling pipe 19 is fixed to the top of the lubricating oil storage housing 17;

[0028] The refueling reserved pipe 19 is threadedly connected to a rubber hose 6, and a pipe clamp 5 is sleeved on the rubber hose 6;

[0029] During use, the upper bearing 7 and the lower bearing 9 utilize the movable structure composed of the limiting sliding cavity 16 and the ball 18 provided at the middle position thereof to realize the self-rotation of the upper bearing 7 and the lower bearing 9. When the upper bowl body 1 and the lower bowl body 3 complete the rotational movement along with the upper bearing 7 and the lower bearing 9, the ball 18 rolls through the limiting sliding cavity 16. At this time, due to the action of gravity, the lubricating oil falls onto the limiting sliding cavity 16 and the ball 18 through the oil guide port 14. The lubricating oil is continuously brought out to the movable parts of the upper bearing 7 and the lower bearing 9 along with the rolling of the ball 18. This can achieve better lubrication treatment for the rotating movable structure of the upper bearing 7 and the lower bearing 9, thereby reducing the influence of friction resistance during rolling and reducing rust and wear, thereby improving the flexibility and service life of the bowl assembly structure.

[0030] A threaded external interface 4 is provided at the middle position of the top of the upper bowl body 1 and the middle position of the bottom of the lower bowl body 3, so that it is easy to realize the threaded assembly of the bowl assembly structure and the bicycle shaft core structure through the threaded external interface 4;

[0031] The inner wall of the threaded external interface 4 is vulcanized with a non-slip silicone layer, which improves the non-slip and stable performance of the threaded external interface 4;

[0032] An external threaded mounting area 11 is provided on the central axis 8, and a mounting groove 12 is provided inside the waterproof protective cover 2, which is threadedly connected to the external threaded mounting area 11, so as to facilitate the rapid disassembly and assembly of the waterproof protective cover 2;

[0033] When in use, the central shaft 8 is provided with an external threaded mounting area 11, and the interior of the waterproof protective cover 2 is provided with a mounting groove 12 threadedly connected to the external threaded mounting area 11, so that the waterproof protective cover 2 can be quickly disassembled and assembled on the central shaft 8 through the spiral connection structure;

[0034] The upper bearing 7 and the lower bearing 9 both form a self-rotating structure through the limiting sliding cavity 16 and the ball bearing 18. The longitudinal section of the waterproof protective cover 2 is trapezoidal.

[0035] When using the embodiment of the present application: the user first uses the solder layer 10 on the upper bowl body 1 and the lower bowl body 3 to realize the welding pre-assembly of the upper bearing 7 and the upper bowl body 1, and the lower bearing 9 and the lower bowl body 3 in the processing factory. Through this pre-assembly structure, the installation steps of subsequent buyers are reduced. During subsequent installation, the user only needs to use the threaded connection between the mounting tube 13 on the middle shaft 8 and the internal threaded screw-on area 15 on the upper bearing 7 and the lower bearing 9 to realize the rapid screw-on assembly between the upper bowl body 1 and the lower bowl body 3 and the middle shaft 8. After the screw-on assembly is completed, the upper bowl body 1 and the lower bowl body 3 can rotate along the middle shaft 8, which optimizes the assembly of the bowl set structure. The mounting structure is convenient for users to quickly screw and disassemble, and use for inspection and maintenance. Moreover, on the one hand, an external threaded mounting area 11 is provided on the middle shaft 8, and a mounting groove 12 threadedly connected to the external threaded mounting area 11 is provided inside the waterproof protective cover 2, so that the waterproof protective cover 2 can be quickly disassembled and assembled on the middle shaft 8 through the spiral connection structure. On the other hand, a threaded external interface 4 is provided at the middle position of the top of the upper bowl body 1 and the middle position of the bottom of the lower bowl body 3, so that users can realize the threaded screwing assembly of the bowl group structure and the bicycle shaft core structure through the threaded external interface 4. At the same time, the upper bearing 7 and the lower bearing 9 use the limit set at the middle position The movable structure composed of the sliding cavity 16 and the ball 18 can realize the self-rotation of the upper bearing 7 and the lower bearing 9. When the upper bowl body 1 and the lower bowl body 3 complete the rotation activity along with the upper bearing 7 and the lower bearing 9, the ball 18 rolls through the limiting sliding cavity 16. At this time, the lubricating oil that falls onto the limiting sliding cavity 16 and the ball 18 through the oil guide port 14 due to the action of gravity will be continuously brought out to the movable parts of the upper bearing 7 and the lower bearing 9 along with the rolling of the ball 18. This can achieve better lubrication treatment for the rotating movable structure of the upper bearing 7 and the lower bearing 9, thereby reducing the influence of friction resistance during rolling, and reducing rust and wear, thereby improving the flexibility of the bowl group structure. and service life. At the same time, the waterproof protective cover 2 is fixed to the outer wall of the middle end of the central axis 8 through a threaded connection structure, and the longitudinal section of the waterproof protective cover 2 is trapezoidal, which is convenient for the cover to protect the upper bearing 7 and the lower bearing 9, and prevent rainwater and the like from penetrating into the limiting sliding cavity 16 to cause pollution, and is conducive to the rainwater and the like being discharged downward along the outer wall of the waterproof protective cover 2, further improving the anti-rust protection effect. In addition, the user can use the threaded connection structure to thread the rubber hose 6 on the refueling reserve tube 19 fixed on the lubricating oil storage shell 17. The user only needs to open and close the pipe clamp 5 on the rubber hose 6 to facilitate the replenishment and addition of lubricating oil.

Claims

1. A headset with a quick-screw-on bicycle axle system, characterized in that: The invention comprises a central axis (8), an upper bowl body (1) and a lower bowl body (3) are respectively installed above and below the central axis (8), an upper bearing (7) is welded to the bottom of the upper bowl body (1), and a lower bearing (9) is welded to the top of the lower bowl body (3), and a soldering layer (10) matching the upper bearing (7) and the lower bearing (9) is respectively provided on the upper bowl body (1) and the lower bowl body (3), and a mounting tube (13) is welded to the top and bottom of the central axis (8), and the interior of the bottom end of the upper bearing (7) and the interior of the top end of the lower bearing (9) are An internal threaded screw-on area (15) threadedly connected to the mounting tube (13) is provided, and a waterproof protective cover (2) matching the upper bearing (7) and the lower bearing (9) is installed on the outer wall of the central shaft (8). The top ends of the upper bearing (7) and the lower bearing (9) are welded with a lubricating oil storage shell (17), and a limiting sliding cavity (16) and a ball (18) are provided at the middle position of the upper bearing (7) and the lower bearing (9). Oil guide ports (14) are evenly provided between the lubricating oil storage shell (17) and the limiting sliding cavity (16).

2. The headset assembly of a bicycle axle system with a quick screw-on design according to claim 1, characterized in that: A threaded external interface (4) is provided at the middle position of the top of the upper bowl body (1) and at the middle position of the bottom of the lower bowl body (3).

3. The headset assembly of the bicycle axle system with quick screw-on capability according to claim 2, characterized in that: The inner side wall of the threaded external interface (4) is vulcanized and connected with a non-slip silicone layer.

4. The headset assembly of a bicycle axle system with a quick screw-on design according to claim 1, characterized in that: An external threaded mounting area (11) is provided on the central shaft (8), and a mounting groove (12) threadedly connected to the external threaded mounting area (11) is provided inside the waterproof protective cover (2).

5. The headset assembly of a bicycle axle system with a quick screw-on design according to claim 1, characterized in that: A refueling reserve pipe (19) is fixed to the top end of the lubricating oil storage housing (17).

6. The headset assembly of the quick-screw bicycle axle system according to claim 5, characterized in that: The refueling reserve pipe (19) is threadedly connected with a rubber hose (6), and the rubber hose (6) is sleeved with a pipe clamp (5).

7. The headset assembly of the quick-screw bicycle axle system according to claim 1, characterized in that: The upper bearing (7) and the lower bearing (9) both form a self-rotating structure through a limiting sliding cavity (16) and a ball bearing (18), and the longitudinal section of the waterproof protective cover (2) is trapezoidal.

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