Quick disassembly and repair of bicycle suspension forks

Abstract

This utility model relates to the field of bicycle technology and discloses a bicycle suspension fork that allows for quick disassembly and repair. The fork includes a shoulder, with caps fixedly connected to the top of both left and right sides. Each cap has a threaded travel tube connected to its bottom. Multiple grooves are formed on the top of both left and right sides of the shoulder. Multiple fixing plates are fixedly connected to the bottom of each cap. A spring is fixedly connected to the right side of each fixing plate, and a locking block is fixedly connected to the right side of each spring. Multiple springs are fixedly connected to the outer wall of the shoulder. In this utility model, when the caps need to be removed, pressing the compression plate on the outer wall of the shoulder compresses the springs. The springs cause the locking blocks to retract inwards against the elastic force of the springs, and the fixing plates move inwards towards the caps, releasing the locking state with the shoulder. At this point, the caps can be pulled out from the travel tubes, thus achieving quick disassembly of the shoulder and travel tubes and improving adaptability.

Description

Technical Field

[0001] This utility model relates to the field of bicycle technology, and in particular to a bicycle suspension fork that can be quickly disassembled and repaired. Background Technology

[0002] A bicycle suspension fork is a type of bicycle fork equipped with a shock absorption device, mainly used to buffer and absorb vibrations from the road surface. When a bicycle is riding on a bumpy road, the wheel is subjected to the impact force from the ground, and the fork legs move upward relative to the frame, causing the inner tube to compress the shock absorption spring or air spring. At the same time, the damping device controls the compression speed of the spring to prevent the fork from being over-compressed and causing a loss of control.

[0003] When problems arise with the travel tube and fork shoulder, traditional disassembly methods require multiple tools and a significant amount of time to remove surrounding components before reaching the problematic area. Existing bicycle suspension forks employ a quick-release design at the handlebar-fork connection point. By locating the handlebar clamp fixing screw and loosening it by turning the screw counterclockwise with an Allen wrench, the handlebar can be directly removed from the fork, speeding up the separation of the fork from the handlebar and facilitating the inspection of the fork and related components. However, when a fault occurs, if the repair tools are not carried, it is impossible to separate and repair the fork shoulder and travel tube outdoors, resulting in reduced adaptability. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a bicycle suspension fork that can be quickly disassembled and repaired, aiming to improve the problem in the prior art that the fork shoulder and travel tube cannot be separated for repair when a failure occurs outdoors, resulting in reduced adaptability.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a bicycle suspension fork that can be quickly disassembled and repaired, including a fork shoulder. Caps are fixedly connected to the top of both left and right sides of the fork shoulder. A travel tube is threadedly connected to the bottom of each of the two caps. Multiple grooves are provided on the top of both left and right sides of the fork shoulder. Multiple fixing plates are fixedly connected to the bottom of each of the two caps. A spring is fixedly connected to the right side of each of the multiple fixing plates. A locking block is fixedly connected to the right side of each of the multiple springs. Multiple springs are fixedly connected to the outer wall of the fork shoulder. A compression plate is fixedly connected to the right side of each of the multiple springs. A fork barrel is fixedly connected to the bottom of each of the two travel tubes. Protective mechanisms are provided on the bottom of both left and right sides of the fork shoulder. These two protective mechanisms are used to prevent dust and impurities from entering the interior of the travel tubes.

[0006] As a further description of the above technical solution:

[0007] The protective mechanism includes two protective sleeves, both of which are fixedly connected to the bottom left and right sides of the fork shoulder. Both stroke tubes have multiple semi-circular grooves inside. Both protective sleeves have a protective sleeve at their bottom inner side. Both protective sleeves have multiple semi-circular grooves on their outer walls. A rotating ball is rotatably connected between adjacent semi-circular grooves. A baffle is fixedly connected to the bottom of the semi-circular groove and the top of the semi-circular groove.

[0008] As a further description of the above technical solution:

[0009] Each of the two fork barrels has a fixed ring fixedly connected to the top of its outer wall, and a fork bridge is fixedly connected to the front side of each of the two fixed rings.

[0010] As a further description of the above technical solution:

[0011] A conduit is fixedly connected to the front side of the fork bridge, and a screw is threaded onto the front side of the conduit.

[0012] As a further description of the above technical solution:

[0013] Both of the fork buckets have fixed bases fixedly connected to their bottom outer walls, and fixed rods are fixedly connected between adjacent fixed bases.

[0014] As a further description of the above technical solution:

[0015] Multiple friction pads are fixedly connected to the rear side of the fork bridge, and all of the friction pads are of a smooth design.

[0016] As a further description of the above technical solution:

[0017] A clamping ring is fixedly connected to the top front side of the fork shoulder, and bolts are fixedly connected to the four corners of the front side of the clamping ring.

[0018] As a further description of the above technical solution:

[0019] The tops of the multiple fixing plates are equidistantly fixed to the bottom left and right sides of the fork shoulder, and the left sides of the multiple springs are equidistantly fixed to the outer wall of the fork shoulder.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, when it is necessary to remove the cap, press the extrusion plate on the outer wall of the fork shoulder. The extrusion plate compresses the second spring. The second spring transmits force to cause the locking block to overcome the elastic force of the first spring and retract inward. The fixing plate then moves into the cap and releases the locking state with the fork shoulder. At this time, the cap can be pulled out from the stroke tube, thereby realizing the quick disassembly of the fork shoulder and the stroke tube and improving adaptability.

[0022] 2. In this utility model, when the stroke tube goes deeper into the fork barrel, the ball bearing located in the semi-circular groove 2 on the outer wall of the protective sleeve 2 will enter the protective sleeve 1 as the stroke tube moves down. The ball bearing rolls between the semi-circular grooves, so that the stroke tube can smoothly go deeper into the fork barrel. Baffles are installed at the bottom of the semi-circular groove 1 and the top of the semi-circular groove 2 to prevent the ball bearing from falling off, thereby achieving protection of the stroke tube. Attached Figure Description

[0023] Figure 1 This is a perspective view of the bicycle suspension fork that can be quickly disassembled and repaired according to this utility model.

[0024] Figure 2 This is a front view of the bicycle shock absorber fork that can be quickly disassembled and repaired according to this utility model;

[0025] Figure 3 This is a rear view of the bicycle suspension front fork that can be quickly disassembled and repaired according to this utility model.

[0026] Figure 4 This is an exploded view of the groove in the bicycle suspension fork that allows for quick disassembly and repair, as proposed in this utility model.

[0027] Figure 5 This is a cross-sectional view of the ball bearing of the bicycle suspension fork that allows for quick disassembly and repair, as proposed in this utility model.

[0028] Legend:

[0029] 1. Fork shoulder; 2. Protective mechanism; 201. Protective sleeve one; 202. Semicircular groove one; 203. Protective sleeve two; 204. Semicircular groove two; 205. Rotary ball; 206. Baffle; 3. Cap; 4. Stroke tube; 5. Groove; 6. Fixing plate; 7. Spring one; 8. Clamping block; 9. Spring two; 10. Squeezing plate; 11. Fork bucket; 12. Fixing ring; 13. Fork bridge; 14. Conduit; 15. Screw; 16. Fixing seat; 17. Fixing rod; 18. Friction pad; 19. Clamping ring; 20. Bolt. 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] Reference Figure 1 and Figure 4This utility model provides an embodiment of a bicycle suspension fork that can be quickly disassembled and repaired, including a fork shoulder 1. Caps 3 are fixedly connected to the top of both the left and right sides of the fork shoulder 1. A travel tube 4 is threadedly connected to the bottom of each cap 3. Multiple grooves 5 are provided on the top of both the left and right sides of the fork shoulder 1. Multiple fixing plates 6 are fixedly connected to the bottom of each cap 3. The fixing plates 6 can be inserted into the grooves 5 for engagement. Spring 7 is fixedly connected to the right side of each fixing plate 6. A locking block 8 is fixedly connected to the right side of each spring 7. Multiple springs 9 are fixedly connected to the outer wall of the fork shoulder 1. A pressing plate 10 is fixedly connected to the right side of each spring 9. Pressing the pressing plate 10 causes the locking block 8 to compress the spring 7, causing the fixing plate 6 to move inward. The caps 3 are then pulled out, separating the caps 3 from the travel tube 4. Fork barrels 11 are fixedly connected to the bottom of each travel tube 4. Protective mechanisms 2 are provided on the bottom of both the left and right sides of the fork shoulder 1 to prevent dust and impurities from entering the travel tube 4.

[0032] Specifically, caps 3 are fixed to the top of the left and right sides of the fork shoulder 1. The bottom of the two caps 3 are connected to the stroke tube 4 by threads, ensuring the stability and sealing of the structure. There are multiple grooves 5 on the top two sides of the fork shoulder 1. Multiple fixing plates 6 fixed to the bottom of the caps 3 can be precisely inserted into the grooves 5 to achieve locking. Each fixing plate 6 is connected to a spring 7 on the right side. The locking block 8 at the right end of the spring 7 can lock the fork shoulder 1 under normal conditions, further strengthening the connection effect. Multiple springs 9 on the outer wall of the fork shoulder 1 and the compression plate 10 connected to them provide a convenient operation method. Simply press the compression plate 10 to make the locking block 8 compress the spring 7, causing the fixing plate 6 to move inward, easily pull out the caps 3, and smoothly separate the caps 3 from the stroke tube 4. The bottom of the stroke tube 4 is connected to the fork barrel 11.

[0033] Reference Figure 5 The protection mechanism 2 includes two protective sleeves 201. The interior of each protective sleeve 201 is fixedly connected to the bottom left and right sides of the fork shoulder 1. The interior of each of the two stroke tubes 4 is provided with multiple semi-circular grooves 202. The bottom inner side of each of the two protective sleeves 201 is provided with a protective sleeve 203. The outer wall of each of the two protective sleeves 203 is provided with multiple semi-circular grooves 204. A rotating ball 205 is rotatably connected between adjacent semi-circular grooves 202 and semi-circular grooves 204. When the stroke tube 4 enters the fork barrel 11, the rotating ball 205 inside the semi-circular groove 204 on the outer wall of the protective sleeve 203 enters the fork barrel 11 along with the stroke tube 4. The protective sleeve 203 enters the interior of the protective sleeve 201. The rotating ball 205 slides inside the semi-circular grooves 202 and semi-circular grooves 204. The bottom of each semi-circular groove 202 and the top of each semi-circular groove 204 are fixedly connected with a baffle 206 to prevent the rotating ball 205 from falling off.

[0034] Specifically, two protective sleeves 201 are fixed to the bottom left and right sides of the fork shoulder 1 to protect the stroke tube 4. The multiple semi-circular grooves 202 inside the stroke tube 4 and the semi-circular grooves 204 on the outer wall of the protective sleeve 203 form the moving track of the ball bearing 205. When the stroke tube 4 goes deeper into the fork barrel 11, the ball bearing 205 in the semi-circular grooves 204 on the outer wall of the protective sleeve 203 follows suit. At this time, the protective sleeve 203 also slides into the protective sleeve 201. The ball bearing 205 slides flexibly between the two semi-circular grooves, which greatly reduces frictional resistance and ensures smooth operation. To prevent the ball bearing 205 from falling off accidentally, baffles 206 are precisely installed at the bottom of the semi-circular groove 202 and the top of the semi-circular groove 204 to prevent the ball bearing 205 from falling off.

[0035] Reference Figure 1 and Figure 2 Each of the two fork barrels 11 has a fixed ring 12 fixedly connected to the top of its outer wall. The front of the two fixed rings 12 is fixedly connected to the fork bridge 13 to ensure stable support and withstand impact from the ground during riding. The front of the fork bridge 13 is fixedly connected to the cable conduit 14 for fixing the cable. The front of the cable conduit 14 is threaded with a screw 15 to fix the cable conduit 14. Each of the two fork barrels 11 has a fixed seat 16 fixedly connected to its bottom. The two fixed seats 16 are fixedly connected to each other with a fixed rod 17 for controlling the direction of the front wheel.

[0036] Specifically, the fork bridge 13, which is fixed to the front of the fixing ring 12 at the top of the outer wall of the two fork barrels 11, can stably support the vehicle body during riding, effectively buffer the impact of the ground, and ensure a smooth ride. The cable conduit 14 on the front of the fork bridge 13 provides a regular path for various cables, and the screw 15 further fixes it. The combination of the fixing seat 16 and the fixing rod 17 at the bottom of the outer wall of the fork barrel 11 precisely controls the steering of the front wheel.

[0037] Reference Figure 2 and Figure 3 Multiple friction pads 18 are fixedly connected to the rear side of the fork bridge 13. All friction pads 18 are rounded to increase friction. A clamping ring 19 is fixedly connected to the top front side of the fork shoulder 1. Bolts 20 are fixedly connected to the four corners of the front side of the clamping ring 19 to fix the clamping ring 19. The tops of multiple fixing plates 6 are fixedly connected to the bottom of the left and right sides of the fork shoulder 1 at equal intervals. The left sides of multiple springs 9 are fixedly connected to the outer wall of the fork shoulder 1 at equal intervals.

[0038] Specifically, the multiple friction pads 18 on the rear side of the fork bridge 13 can cleverly increase friction when in contact, ensuring close cooperation between components and improving overall stability. The clamping ring 19 on the front top of the fork shoulder 1 is secured by bolts 20 at the four corners. Multiple fixing plates 6 and springs 29 are fixed at equal intervals to the corresponding parts of the fork shoulder 1.

[0039] Working principle: The cap 3 is threaded to the top of the stroke tube 4. The grooves 5 on both sides of the shoulder 1 are adapted to the bottom fixing plate 6 of the cap 3. After the fixing plate 6 is inserted into the groove 5, the spring 7 pushes the locking block 8 to lock the shoulder 1, making the connection between the cap 3 and the shoulder 1 more secure and able to withstand a certain external impact without loosening. When it is necessary to remove the cap 3, press the extrusion plate 10 on the outer wall of the shoulder 1. The extrusion plate 10 compresses the spring 9. The spring 9 transmits force to make the locking block 8 overcome the elasticity of the spring 7 and retract inward. The fixing plate 6 then moves into the cap 3, releasing the locking state with the shoulder 1. At this time, the cap 3 can be pulled out from the stroke tube 4 to separate the two for internal structure inspection, maintenance and other operations.

[0040] Furthermore, the two protective sleeves 201 are fixed to the bottom left and right sides of the fork shoulder 1, surrounding the outside of the stroke tube 4, effectively preventing foreign objects from colliding with the stroke tube 4 and avoiding damage. When the stroke tube 4 extends into the fork hopper 11, the semi-circular groove 202 and the semi-circular groove 204 form the moving track of the ball bearing 205. The ball bearing 205 located in the semi-circular groove 204 on the outer wall of the protective sleeve 203 will follow the downward movement of the stroke tube 4. The protective sleeve 203 gradually slides into the protective sleeve 201, and the ball bearing 205 moves between the two semi-circular grooves. The rolling motion transforms the sliding friction between the stroke tube 4 and the protective sleeve 201 or other adjacent components into rolling friction, greatly reducing the coefficient of friction. This allows the stroke tube 4 to smoothly penetrate the fork bucket 11, reducing energy loss and improving operating efficiency. Baffles 206 are installed at the bottom of the semi-circular groove 202 and the top of the semi-circular groove 204. The baffles 206 are tightly fitted at both ends of the moving path of the ball bearing 205, effectively preventing the ball bearing 205 from leaving the track due to vibration, collision or other unexpected factors, whether in a static or moving state.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A bicycle suspension fork that can be quickly disassembled and repaired, including a fork shoulder (1), characterized in that: The top of the left and right sides of the fork shoulder (1) is fixedly connected with caps (3), and the bottom of the two caps (3) is threadedly connected with stroke tubes (4). The top of the left and right sides of the fork shoulder (1) is provided with multiple grooves (5). The bottom of the two caps (3) is fixedly connected with multiple fixing plates (6). The right side of the multiple fixing plates (6) is fixedly connected with spring one (7). The right side of the multiple spring one (7) is fixedly connected with a locking block (8). The outer wall of the fork shoulder (1) is fixedly connected with multiple spring two (9). The right side of the multiple spring two (9) is fixedly connected with a pressing plate (10). The bottom of the two stroke tubes (4) is fixedly connected with fork barrels (11). The bottom of the left and right sides of the fork shoulder (1) is provided with protective mechanisms (2). The two protective mechanisms (2) are used to prevent dust and impurities from entering the inside of the stroke tubes (4).

2. The quick-disassembly and repairable bicycle suspension fork according to claim 1, characterized in that: The protective mechanism (2) includes two protective sleeves (201). The interior of each of the two protective sleeves (201) is fixedly connected to the bottom left and right sides of the fork shoulder (1). The interior of each of the two stroke tubes (4) is provided with multiple semi-circular grooves (202). The bottom of the inner side of each of the two protective sleeves (201) is provided with a protective sleeve (203). The outer wall of each of the two protective sleeves (203) is provided with multiple semi-circular grooves (204). A rotating ball (205) is rotatably connected between adjacent semi-circular grooves (202) and semi-circular grooves (204). A baffle (206) is fixedly connected to the bottom of each semi-circular groove (202) and the top of each semi-circular groove (204).

3. The quick-disassembly and repairable bicycle suspension fork according to claim 1, characterized in that: The top of the outer wall of each of the two fork barrels (11) is fixedly connected with a fixing ring (12), and the front side of the two fixing rings (12) is fixedly connected with a fork bridge (13).

4. The quick-disassembly and repairable bicycle suspension fork according to claim 3, characterized in that: The front side of the fork bridge (13) is fixedly connected to a conduit (14), and the front side of the conduit (14) is threaded with a screw (15).

5. The quick-disassembly and repairable bicycle suspension fork according to claim 1, characterized in that: The bottom of the outer walls of the two fork buckets (11) are fixedly connected to a fixed seat (16), and a fixed rod (17) is fixedly connected between adjacent fixed seats (16).

6. The quick-disassembly and repairable bicycle suspension fork according to claim 3, characterized in that: Multiple friction pads (18) are fixedly connected to the rear side of the fork bridge (13), and all of the friction pads (18) are rounded.

7. The quick-disassembly and repairable bicycle suspension fork according to claim 1, characterized in that: A clamping ring (19) is fixedly connected to the top front side of the fork shoulder (1), and bolts (20) are fixedly connected to the four corners of the front side of the clamping ring (19).

8. The quick-disassembly and repairable bicycle suspension fork according to claim 1, characterized in that: The tops of the multiple fixing plates (6) are fixedly connected at equal intervals to the bottom left and right sides of the fork shoulder (1), and the left sides of the multiple springs (9) are fixedly connected at equal intervals to the outer wall of the fork shoulder (1).

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