Wire-fixing bicycle head bowl set
By introducing graduated lines and pressure springs into the fixed-line bicycle headset, combined with a hexagonal retaining ring and guide chamfer, the problem of difficulty in judging the tightness of the retaining ring is solved, enabling precise adjustment of the retaining ring and protection of the bearings, thus improving ease of use and the cleanliness of the bicycle.
Patent Information
- Application Number
- CN202520589427.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-03-31
AI Technical Summary
During the installation and adjustment of fixed-line bicycle headsets, there is a lack of convenient methods to judge the tightness of the retaining ring, especially in the absence of a torque wrench, making it difficult to achieve precise adjustment of the retaining ring.
A fixed-line bicycle headset was designed. By setting scale lines and pressure springs on the slide sleeve, the pressure of the retaining ring can be adjusted using a regular wrench. Combined with the hexagonal retaining ring structure and guide chamfer, the retaining ring can be precisely adjusted. At the same time, the cable harness structure and cover prevent rainwater from entering, maintaining the stability of the bearing and the cleanliness of the brake cable.
It enables precise adjustment of the retaining ring pressure using a regular wrench without the need for a torque wrench, ensuring bearing stability and brake cable neatness, and improving ease of use and the cleanliness of the bicycle's appearance.
Smart Images
Figure CN223919500U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of bicycle components, and more particularly to a cable-stayed bicycle headset. Background Technology
[0002] The main function of a fixed-cable bicycle headset is to connect the handlebars and fork, ensuring that they can rotate freely in the head tube of the frame, thereby achieving steering and balance control. Specifically, the headset ensures a tight connection between the fork and the frame through the embedding of bearings or balls, allowing the front of the bike to rotate smoothly and providing stable handling performance.
[0003] However, since the headband headset needs to be tightened during installation, a torque wrench is needed to apply a fixed torque value to prevent it from being too loose or too tight. During use, the tightness of the retaining ring also needs to be adjusted according to the actual situation, which also requires the use of a torque wrench. When there is no torque wrench, it is impossible to know the specific tightness of the retaining ring when turning it with a regular wrench, which is inconvenient to use. Utility Model Content
[0004] In order to clearly determine the tightness of the retaining ring when it is twisted, so that the tightness of the retaining ring can be precisely adjusted using a regular wrench, this application provides a cable-locked bicycle headset.
[0005] This application provides a cable-mounted bicycle headset, which adopts the following technical solution:
[0006] A fixed-cable bicycle headset includes a head tube frame, an upper cup that is engaged at the top of the head tube frame, an upper bearing that is engaged inside the upper cup, the top side of the upper bearing abutting against the bottom end of a pressure sleeve, a sliding sleeve that is slidably connected to the periphery of the pressure sleeve, the top end of the sliding sleeve abutting against a retaining ring, the retaining ring being threaded to a fork, a pressure spring that is sleeved on the outside of the sliding sleeve, the top end of the pressure spring abutting against the sliding sleeve, the bottom end of the pressure spring abutting against the pressure sleeve, and the pressure sleeve having graduated lines.
[0007] By adopting the above technical solution, the flexibility of the fork rotation can be adjusted by adjusting the pressure of the upper bearing. During the adjustment process, the bottom end of the sliding sleeve will be located at different positions on the scale line. Therefore, the specific pressure can be known by the position of the bottom end of the sliding sleeve corresponding to the corresponding scale line. Thus, even without a torque wrench, the pressure of the fixed ring can be accurately adjusted with the help of an ordinary wrench, making it more convenient to use.
[0008] Optionally, the outer side of the transverse section of the fixing ring has a hexagonal structure, the bottom of the outer side of the upper cup is chamfered, and the outer wall of the lower part of the upper cup fits against the inner wall of the top of the frame head tube.
[0009] By adopting the above technical solution, the outer side of the transverse cross-section of the retaining ring is hexagonal, which facilitates the rotation of the retaining ring with a wrench. Furthermore, the bottom of the outer side of the upper cup has a chamfer, which guides the upper cup as it is inserted into the head tube of the frame.
[0010] Optionally, a cover is fixedly connected to the pressure sleeve, and the cover is provided with a wire harness structure.
[0011] By adopting the above technical solution, the gap between the pressure sleeve and the upper cup can be blocked by the cover, thereby preventing rainwater from entering the interior of the upper cup and causing adverse effects on the upper bearing. The cable harness structure can also restrain the brake cable to a certain extent, making the bicycle cleaner.
[0012] Optionally, the wire harness structure includes a connecting block and a rotating shaft. The connecting block is fixedly connected to the cover, the rotating shaft is rotatably connected to the connecting block, and a stop block is fixedly connected to the rotating shaft. The connecting block is provided with two wire harness grooves, and the stop block abuts against the connecting block.
[0013] By adopting the above technical solution, when it is necessary to restrain the brake cable, the stop block can be rotated, which will drive the shaft to rotate on the connecting block. When the stop block does not block the two cable trays, the brake cable can be moved into the inside of the cable trays. Then, the stop block is rotated in the opposite direction to block the two brake cables, thereby restraining the brake cable and making the bicycle look neater.
[0014] Optionally, a torsion spring is fixedly connected to the rotating shaft, and the torsion spring is fixedly connected to the connecting block.
[0015] By adopting the above technical solution, when the stop block is released, the torsion spring will deform and cause the shaft to rotate. The rotation of the shaft will drive the stop block to move toward the connecting block until the stop block and the connecting block come into contact. Therefore, the stop block can always be in contact with the connecting block without the action of external force, thereby preventing the brake cable from coming off the inside of the cable tray and effectively improving the stability of use.
[0016] Optionally, a lower cup is engaged at the bottom end of the head tube of the frame, a lower bearing is engaged inside the lower cup, and a base is fitted on the outside of the fork, with the top of the base abutting against the bottom end of the lower bearing.
[0017] By adopting the above technical solution, when installing the headset, the bottom bracket can be placed on the fork, and then the headset can be pressed against the bottom of the head tube of the frame. After the headset is installed, the lower bearing is placed inside the headset, and then the fork is passed through the head tube of the frame until the top of the bottom bracket and the bottom of the lower bearing are in contact. At this time, the headset is installed.
[0018] Optionally, the top of the outer side of the lower cup is chamfered, and the outer wall of the upper part of the lower cup is fitted with the inner wall of the bottom end of the frame head tube.
[0019] By adopting the above technical solution, it is possible to guide the lower cup when it is pressed into the bottom of the frame head tube.
[0020] In summary, this application includes at least one of the following beneficial technical effects:
[0021] 1. When the retaining ring is turned with a regular wrench, the retaining ring will cause the sliding sleeve to slide on the pressure sleeve, and the pressure spring will contract. During the sliding process, the bottom end of the sliding sleeve will be at different positions of the scale line. Therefore, the specific pressure can be known by the position of the bottom end of the sliding sleeve corresponding to the corresponding scale line. Thus, even without a torque wrench, the pressure of the retaining ring can be accurately adjusted with a regular wrench, making it more convenient to use.
[0022] 2. When it is necessary to tighten the brake cables, the stop block can be rotated. The stop block will drive the shaft to rotate on the connecting block. When the stop block does not block the two cable trays, the brake cables can be moved into the inside of the cable trays. Then, the stop block can be rotated in the opposite direction to block the two brake cables, thereby tightening the brake cables and making the bicycle look neater.
[0023] 3. The gap between the pressure sleeve and the upper bowl is blocked by the cover, thereby preventing rainwater from entering the interior of the upper bowl and causing adverse effects on the upper bearing. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0025] Figure 2 for Figure 1 The enlarged schematic diagram of part A shown below;
[0026] Figure 3 This is a schematic diagram of the connection structure between the lower bowl and the lower bearing of this utility model;
[0027] Figure 4 for Figure 3 The enlarged schematic diagram of section B is shown below;
[0028] Figure 5 This is a schematic diagram of the connection structure between the cover and the connecting block of this utility model.
[0029] Reference numerals: 1. Head tube; 2. Fork; 3. Upper headset; 4. Upper bearing; 5. Pressure sleeve; 6. Sliding sleeve; 7. Compression spring; 8. Retaining ring; 9. Cable harness structure; 901. Connecting block; 902. Shaft; 903. Stop block; 904. Torsion spring; 905. Cable harness groove; 10. Cover; 11. Scale line; 12. Lower headset; 13. Lower bearing; 14. Base plate. Detailed Implementation
[0030] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.
[0031] This application discloses a cable-stayed bicycle headset. (Refer to...) Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 A fixed-line bicycle headset includes a frame head tube 1, an upper cup 3 is engaged at the top of the frame head tube 1, an upper bearing 4 is located between the upper cup 3 and a pressure sleeve 5, a sliding sleeve 6 is slidably connected to the periphery of the pressure sleeve 5, the top of the sliding sleeve 6 abuts against a retaining ring 8, and the retaining ring 8 is threadedly connected to the front fork 2.
[0032] After the lower headset 12 is installed, the lower bearing 13 is placed inside the lower headset 12. Then, the fork 2 is passed through the head tube 1 of the frame until the top of the bottom bracket 14 contacts the bottom of the lower bearing 13. At this point, the lower headset is installed. During the adjustment process, the bottom of the sliding sleeve 6 will be at different positions on the scale line 11. Therefore, the specific pressure can be known by the position of the bottom of the sliding sleeve 6 corresponding to the corresponding scale line 11. Thus, even without a torque wrench, the pressure of the retaining ring 8 can be accurately adjusted with the help of an ordinary wrench, making it more convenient to use.
[0033] Reference Figure 2 and Figure 4 A cover 10 is fixedly connected to the pressure sleeve 5, and a wire harness structure 9 is provided on the cover 10.
[0034] The cover 10 can block the gap between the pressure sleeve 5 and the upper bowl 3, thereby preventing rainwater from entering the interior of the upper bowl 3 and causing adverse effects on the upper bearing 4, thus preventing damage to the upper bearing 4 and ensuring the service life of the upper bearing 4.
[0035] Reference Figure 1 and Figure 2 The wire harness structure 9 includes a connecting block 901 and a rotating shaft 902. The connecting block 901 is fixedly connected to the cover 10, and the rotating shaft 902 is fixedly connected to the stop block 903. The connecting block 901 is provided with two wire harness grooves 905. The rotating shaft 902 is fixedly connected to a torsion spring 904, and the torsion spring 904 is fixedly connected to the connecting block 901.
[0036] When the stop block 903 does not block the two cable trays 905, the brake cable can be moved into the inside of the cable tray 905. Then, the stop block 903 is released. When the stop block 903 is released, the torsion spring 904 will deform and cause the shaft 902 to rotate. The rotation of the shaft 902 will drive the stop block 903 to move towards the connecting block 901 until the stop block 903 and the connecting block 901 come into contact, thereby restraining the brake cable and making the bicycle look neater.
[0037] This application discloses the implementation principle of a fixed-cable bicycle headset as follows: When installing the lower headset, the base 14 is placed on the fork 2, and then the lower headset 12 is pressed against the bottom end of the head tube 1. After the lower headset 12 is installed, the lower bearing 13 is placed inside the lower headset 12. Then, the fork 2 passes through the head tube 1 until the top of the base 14 abuts against the bottom end of the lower bearing 13, thus completing the installation of the lower headset. After the lower headset 12 is pressed against the bottom end of the head tube 1, the upper headset 3 is pressed against the top end of the head tube 1. After the fork 2 passes through the head tube 1, the upper bearing 4 is placed inside the upper headset 3. Then, the pressure sleeve 5 is placed on the top end of the upper bearing 4, and then the pressure spring 7 is sleeved on the outside of the pressure sleeve 5. Then, the sliding sleeve 6 is sleeved on the pressure sleeve 5. At this time, the top end of the pressure spring 7 will abut against the sliding sleeve 6. Then, the retaining ring 8 is sleeved on the fork 2, and then the retaining ring 8 is manually twisted so that its bottom end is against the top end of the sliding sleeve 6. The ends abut against each other, and then the retaining ring 8 is turned with a regular wrench. The retaining ring 8 will cause the sliding sleeve 6 to slide on the pressure sleeve 5, and the pressure spring 7 will contract. As the sliding sleeve 6 slides on the pressure sleeve 5, the pressure of the pressure spring 7 will gradually increase. The force of the pressure spring 7 will act on the pressure sleeve 5 and be transmitted to the upper bearing 4 through the pressure sleeve 5. During the adjustment process, the bottom end of the sliding sleeve 6 will be located at different positions on the scale line 11. When it is necessary to bind the brake cable, the stop block 903 can be rotated. The stop block 903 will drive the rotating shaft 902 to rotate on the connecting block 901. When the stop block 903 does not abut against the two cable trays 905, the brake cable can be moved into the inside of the cable tray 905. Then the stop block 903 is released. When the stop block 903 is released, the torsion spring 904 will deform and cause the rotating shaft 902 to rotate. The rotation of the rotating shaft 902 will drive the stop block 903 to move towards the connecting block 901 until the stop block 903 and the connecting block 901 abut against each other.
[0038] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A cable-stayed bicycle headset, comprising a head tube (1), characterized in that: The top of the head tube (1) of the frame is fitted with an upper cup (3), and the upper cup (3) is fitted with an upper bearing (4). The top side of the upper bearing (4) abuts against the bottom end of the pressure sleeve (5). The outer periphery of the pressure sleeve (5) is slidably connected with a sliding sleeve (6). The top of the sliding sleeve (6) abuts against a retaining ring (8). The retaining ring (8) is threadedly connected to the front fork (2). A pressure spring (7) is sleeved on the outside of the sliding sleeve (6). The top of the pressure spring (7) abuts against the sliding sleeve (6), and the bottom end of the pressure spring (7) abuts against the pressure sleeve (5). The pressure sleeve (5) is provided with a scale line (11).
2. The fixed-cable bicycle headset according to claim 1, characterized in that: The outer side of the cross section of the fixing ring (8) is hexagonal, the bottom of the outer side of the upper bowl (3) is chamfered, and the outer wall of the lower part of the upper bowl (3) is fitted with the inner wall of the top of the frame head tube (1).
3. The fixed-cable bicycle headset according to claim 1, characterized in that: A cover (10) is fixedly connected to the pressure sleeve (5), and a wire harness structure (9) is provided on the cover (10).
4. A fixed-cable bicycle headset according to claim 3, characterized in that: The wire harness structure (9) includes a connecting block (901) and a rotating shaft (902). The connecting block (901) is fixedly connected to the cover (10). The rotating shaft (902) is rotatably connected to the connecting block (901). A stop block (903) is fixedly connected to the rotating shaft (902). The connecting block (901) is provided with two wire harness grooves (905). The stop block (903) abuts against the connecting block (901).
5. A fixed-cable bicycle headset according to claim 4, characterized in that: A torsion spring (904) is fixedly connected to the rotating shaft (902), and the torsion spring (904) is fixedly connected to the connecting block (901).
6. A fixed-cable bicycle headset according to claim 1, characterized in that: The bottom end of the head tube (1) of the frame is fitted with a lower cup (12), and the lower cup (12) is fitted with a lower bearing (13). The front fork (2) is fitted with a base (14), and the top end of the base (14) abuts against the bottom end of the lower bearing (13).
7. A fixed-cable bicycle headset according to claim 6, characterized in that: The top of the outer side of the lower bowl (12) is chamfered, and the outer wall of the upper part of the lower bowl (12) is in contact with the inner wall of the bottom end of the frame head tube (1).