Shock-proof front fork with spring quick replacement structure

Abstract

The utility model relates to the technical field of suspension forks, and discloses a suspension fork with a quick spring replacement structure, which comprises two fork barrels, positioning columns are fixedly connected to the sides, far away from each other, of the fork barrels, a chassis is arranged at the bottom of the inner side of each fork barrel, a bolt is connected to the inside of each chassis in an engaged manner, and the positioning columns are fixedly connected to the positioning columns. The left side of the bolt is in threaded connection with a first nut, the top of the chassis is fixedly connected with a long spring, the top of the long spring is fixedly connected with a fixing disc, the top of the fixing disc is in meshed connection with a threaded sleeve, and the top of the threaded sleeve is fixedly connected with a stroke pipe. According to the utility model, firstly, the clamping with the positioning column is canceled, then the connection between the fixed sleeve I and the stroke pipe is released, then the stroke pipe is taken out from the inside of the fork cylinder, and at the moment, the fixed disc is rotated, so that the long spring can be disassembled, and the completeness of other parts can be effectively protected while the replacement is convenient and rapid.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of shock absorbing front fork, especially to a shock absorbing front fork with spring quick replacement structure. BACKGROUND

[0002] The bicycle front fork is originally only simple metal pipe, plays the role of connecting frame and front wheel, realizes steering, along with the development of bicycle movement, people have higher requirement to the comfort and control of riding, installs the shock absorbing front fork in the bicycle head part for connecting frame and front wheel, and its core function is to absorb and buffer the impact force from the road surface, makes the riding process more stable and comfortable, when the driver rotates the handlebar to carry out the turning operation, the front fork can buffer the additional vibration and impact force due to the inclination of the vehicle and the uneven road surface, makes the steering process more stable and smooth, when high speed turns, even if encountering the small pits and protrusions of the road surface, the front fork can reduce the interference of these factors to the steering, especially the mountain bike, the road bike and the motorcycle racing car type with higher requirement to the control and comfort, in the specific field of competitive sports, professional riding and racing car, the performance and quality of the front fork are crucial to the overall performance and safety of the vehicle, directly influence the comfort of riding, the precision of control and the ability to deal with complex road conditions.

[0003] The shock absorbing front fork can reduce the vibration transmission to the hands and body of the driver, and also can enhance the contact of the wheel and the ground, improve the controllability and safety of the vehicle, whether it is the slight road texture change or the larger terrain fluctuation, the shock absorbing front fork can make the bicycle ride more stable, in the mountain riding, when the driver passes a downhill section full of stones, the shock absorbing front fork can absorb the vibration while adjusting the position of the wheel according to the shape and fluctuation of the road surface in time, maintains the sufficient grip, the good grip can make the driver more accurately control the riding direction and speed of the bicycle, but when the spring problem is found and the new spring is needed, due to the complex replacement process, the spring cannot be quickly taken out and replaced with the new spring, the trip has to be shortened and the riding has to be cancelled, which brings negative influence to the riding experience. UTILITY MODEL CONTENTS

[0004] In order to make up for the above shortcomings, the utility model provides a shock absorbing front fork with spring quick replacement structure, aims at improving the problem that in the prior art, when the spring problem is found and the new spring is needed, due to the complex replacement process, the spring cannot be quickly taken out and replaced with the new spring, the trip has to be shortened and the riding has to be cancelled, which brings negative influence to the riding experience.

[0005] In order to achieve the above object, the utility model discloses the following technical scheme: a shock-absorbing front fork with spring quick replacement structure, including two fork cylinders, the far side of the fork cylinder is fixedly connected with the positioning column, the inside bottom of the fork cylinder is provided with the base plate, the inside engagement of the base plate is connected with the bolt, the left side screw thread of the bolt is connected with the nut no.

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

[0007] The fixed mechanism includes two rotating shafts, the front side of the rotating shaft is rotatably connected with the inside rear side of the fork cylinder, the front side of the rotating shaft is fixedly connected with the pinion, the inside of the fork cylinder is fixedly connected with the fixed seat, the inside of the fixed seat is slidably connected with the sliding block, the inside of the sliding block is slidably connected with the T-shaped block, the bottom adjacent side of the fixed disc is provided with the hole, and the far side of the sliding block is clamped with the inner wall of the corresponding hole.

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

[0009] The top of the nut no. 2 is fixedly connected with the handle, and the adjacent fork bridge is fixedly connected between the stroke pipes.

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

[0011] The bottom front side of the fork cylinder is fixedly connected with the fork leg, and the adjacent fork leg is rotatably connected with the axle.

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

[0013] The middle outer wall of the fork cylinder is fixedly connected with the protective sleeve, and the two protective sleeves are symmetrically designed.

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

[0015] The top outer wall of the stroke pipe is fixedly connected with the fixed sleeve no. 2, and the adjacent fork shoulder is fixedly connected with the fixed sleeve no. 1.

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

[0017] The top of the fork shoulder is fixedly connected with the upper pipe, and the bottom outer wall of the upper pipe is fixedly connected with the fixed ring.

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

[0019] The rear side of the right fork cylinder is fixedly connected with a disc brake mounting seat, and the rear side of the rotating shaft is fixedly connected with a knob.

[0020] The utility model has the advantages of the following beneficial effects:

[0021] 1. In the utility model, when it is necessary to disassemble and replace the long spring, the nut one on the right side of the bolt is unscrewed, the bolt is then rotated to cancel the clamping with the positioning column, the nut two is then rotated to disengage the fixed sleeve one from the stroke pipe, and the stroke pipe is then taken out from the inside of the fork cylinder. At this time, the fixed disc is rotated to disengage the long spring. By orderly disengaging the connection between the components, the integrity of other components can be effectively protected, and the maintainability of the equipment is improved to a certain extent.

[0022] 2. In the utility model, when the shock absorption function is not needed, the rotation of the rotating shaft can bring the rotation of the pinion. When one side of the T-shaped block moves to the inside of the hole, the fixing of the fixed disc is completed. After the position of the fixed disc is fixed, the long spring cannot be stretched and contracted for shock absorption. In the scene where shock absorption is not needed, the long spring can be quickly and conveniently fixed, the shock absorption fork is converted into a rigid structure, the energy loss caused by the stretching and contraction of the spring can be effectively reduced, the power is more directly transmitted to the wheel, and the riding speed and efficiency are improved. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 A fork cylinder front side perspective view of the shock absorption fork with the spring quick replacement structure is provided for the utility model;

[0024] Figure 2 A stroke pipe disassembly view of the shock absorption fork with the spring quick replacement structure is provided for the utility model;

[0025] Figure 3 A fixed sleeve one disassembly view of the shock absorption fork with the spring quick replacement structure is provided for the utility model;

[0026] Figure 4 A fixed disc disassembly view of the shock absorption fork with the spring quick replacement structure is provided for the utility model;

[0027] Figure 5 A sliding block disassembly view of the shock absorption fork with the spring quick replacement structure is provided for the utility model;

[0028] Figure 6 A disc brake mounting seat display view of the shock absorption fork with the spring quick replacement structure is provided for the utility model;

[0029] Figure 7 The utility model provides a bolt of shock absorbing front fork with spring quick replacement structure.

[0030] Legend:

[0031] 1, fork cylinder; 2, fixed mechanism; 201, pivot; 202, pinion; 203, fixed seat; 204, sliding block; 205, T-shaped block; 206, hole; 3, positioning column; 4, chassis; 5, bolt; 6, nut one; 7, long spring; 8, fixed disc; 9, threaded sleeve; 10, stroke pipe; 11, fixed sleeve one; 12, nut two; 13, handle; 14, fork bridge; 15, fork leg; 16, wheel shaft; 17, protective sleeve; 18, fixed sleeve two; 19, fork shoulder; 20, fixed ring; 21, upper pipe; 22, disc brake mounting seat; 23, knob. Specific implementation

[0032] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model and not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0033] Please refer to the drawings of the embodiments of the utility model Figure 2 , the drawings of the embodiments of the utility model Figure 3 and the drawings of the embodiments of the utility model Figure 4 , the utility model provides an embodiment: a shock absorbing front fork with spring quick replacement structure, including two fork cylinders 1, the far side of fork cylinder 1 is fixedly connected with positioning column 3, the inner side bottom of fork cylinder 1 is provided with chassis 4, the inside of chassis 4 is hingedly connected with bolt 5, realizes the fixed of chassis 4 and fork cylinder 1, the left side of bolt 5 is threadedly connected with nut one 6, the top of chassis 4 is fixedly connected with long spring 7, realizes shock absorbing effect, the top of long spring 7 is fixedly connected with fixed disc 8, the top of fixed disc 8 is hingedly connected with threaded sleeve 9, realizes stable connection, the top of threaded sleeve 9 is fixedly connected with stroke pipe 10, the outer wall of stroke pipe 10 is slidingly connected in the inner wall of fork cylinder 1, the top of stroke pipe 10 is provided with fixed sleeve one 11, the top end middle part of fixed sleeve one 11 is threadedly connected with nut two 12, the inside of fork cylinder 1 is provided with fixed mechanism 2, fixed mechanism 2 is used for the fixed of fixed disc 8, ensures the functionality of entire shock absorbing front fork in the use process;

[0034] Specific, the role of positioning column 3 is to ensure the stability of the internal structure in the process of use, chassis 4 not only plays a supporting role, its inside is also engaged with bolt 5, the left side of bolt 5 is screwed with nut 1, the right side is engaged with the inner wall of positioning column 3, the purpose of fixing chassis 4 at the bottom of the inside of fork cylinder 1 is completed, long spring 7 realizes the shock absorption function, the outer wall of stroke tube 10 can slide on the inner wall of fork cylinder 1, so that the shock absorber fork can provide smooth travel when moving, the bottom of nut 2 is screwed with the top of stroke tube 10 through fixed sleeve 1, which ensures the stability of the structure.

[0035] Please refer to the attached Figure 1 , attached Figure 5 and attached Figure 6 , fixed mechanism 2 includes two rotating shafts 201, the front side of rotating shaft 201 is rotatably connected with the inside of fork cylinder 1, which is convenient for operation of the mechanism, the front side of rotating shaft 201 is fixedly connected with pinion 202, the inside of fork cylinder 1 is fixedly connected with fixed seat 203, which is used to protect the internal structure of fixed mechanism 2, the inside of fixed seat 203 is slidably connected with sliding block 204, the inside of sliding block 204 is slidably connected with T-shaped block 205, the bottom of fixed disc 8 is adjacent to one side of hole 206, so that the sliding of T-shaped block 205 can be engaged with hole 206, the side away from sliding block 204 is engaged with the inner wall of corresponding hole 206, which completes the fixation of fixed disc 8.

[0036] Specifically, rotating shaft 201 ensures the adjustability of the mechanism, pinion 202 can slide with T-shaped block 205 in the inside of fixed seat 203, so that it can be engaged with hole 206 to ensure the fixation of fixed disc 8, thereby playing a limiting role in shock absorption function.

[0037] Please refer to the attached Figure 1 , attached Figure 5 and attached Figure 7 , the top outer wall of stroke tube 10 is fixedly connected with fixed sleeve 2 18, the adjacent fixed sleeve 1 11 is fixedly connected with fork shoulder 19, which provides a guide function for the structure, the top of nut 2 12 is fixedly connected with handle 13, which facilitates the removal of nut 2 12, the adjacent stroke tube 10 is fixedly connected with fork bridge 14, the rear side of right fork cylinder 1 is fixedly connected with disc brake mounting seat 22, which provides a braking function for the structure, the rear side of rotating shaft 201 is fixedly connected with knob 23.

[0038] Specifically, the fixed sleeve 18 provides a stable support point for the device, the fork shoulder 19 not only enhances the stability of the structure but also provides guidance for the movement of the device, the handle 13 makes it easy to adjust the state of the device, the fork bridge 14 can further strengthen the structural strength of the device and ensure the precise fit between the components, the disc brake mounting base 22 provides the necessary braking function for the device to ensure that it can stop quickly in an emergency, and the knob 23 allows the device to be controlled by a simple rotation action, improving the convenience of operation.

[0039] Please see the appendix Figure 1 Appendix Figure 5 and attached Figure 7 The top of the fork shoulder 19 is fixedly connected to the upper tube 21, and the bottom outer wall of the upper tube 21 is fixedly connected to the fixing ring 20, which increases the stability of the structure. The middle outer wall of the fork tube 1 is fixedly connected to the protective sleeve 17 to ensure effective protection of the fork tube 1. Both protective sleeves 17 adopt a symmetrical design. The bottom front side of the fork tube 1 is fixedly connected to the fork foot 15, and the adjacent fork feet 15 are rotatably connected to the axle 16.

[0040] Specifically, the top tube 21 ensures the integrity and stability of the overall vehicle structure, the fixing ring 20 further enhances the overall stability, the protective sleeve 17 prevents accidental wear and damage to the fork tube 1, the fork feet 15 enable the fork tube 1 to be more efficient, and the wheel axle 16 improves the flexibility of operation. When turning at high speed, the good cooperation between the wheel axle 16 and the fork tube 1 can effectively transmit centrifugal force and keep the vehicle stable.

[0041] Working principle: When it is necessary to disassemble and replace the long spring 7, unscrew the nut 6 on the right side of the bolt 5, then rotate the bolt 5 so that the middle part of the bolt 5 leaves the inside of the chassis 4 and cancels the engagement with the positioning post 3. Then rotate the nut 12 to disconnect the fixing sleeve 11 from the stroke tube 10, and then take the stroke tube 10 out of the inside of the fork 1. At this time, rotating the fixing plate 8 will complete the removal of the long spring 7. This step-by-step disassembly method makes the disassembly of the long spring 7 more convenient and faster. During the disassembly and replacement process, by orderly disconnecting the connections between various components, the integrity of other components can be effectively protected. Even non-professional maintenance personnel can successfully complete the disassembly of the long spring 7, which improves the maintainability of the equipment to a certain extent.

[0042] The fixed plate 8 is fixed by the sliding block 204 inside the fixing seat 203 on the inner wall of the fork 1. When the shock absorption function is not needed, rotating the shaft 201 will rotate the pinion 202. The rotation of the pinion 202 will move the bottom T-block 205. Due to the restriction of the sliding block 204, it will start to move horizontally. When one side of the T-block 205 moves into the hole 206, the fixed plate 8 is fixed. After the fixed plate 8 is fixed, the long spring 7 can no longer extend and retract to absorb shock, so that the shock absorption function can be turned on and off according to actual needs. In the case where shock absorption is not needed, the long spring 7 can be fixed quickly and easily, and the shock-absorbing fork can be converted into a rigid structure. This can effectively reduce the energy loss caused by the extension and retraction of the spring, so that the power can be transmitted to the wheel more directly, improving riding speed and efficiency, and adapting to various road conditions and riding styles.

[0043] 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 shock-absorbing front fork with a spring quick-change structure, comprising two fork tubes (1), characterized in that: Positioning pins (3) are fixedly connected to the opposite sides of the fork barrel (1). A base plate (4) is provided at the bottom of the inner side of the fork barrel (1). A bolt (5) is engaged with the inside of the base plate (4). A nut (6) is threadedly connected to the left side of the bolt (5). A long spring (7) is fixedly connected to the top of the base plate (4). A fixing plate (8) is fixedly connected to the top of the long spring (7). A threaded sleeve (9) is engaged with the top of the fixing plate (8). A stroke tube (10) is fixedly connected to the top of the threaded sleeve (9). The outer wall of the stroke tube (10) is slidably connected to the inner wall of the fork barrel (1). A fixing sleeve (11) is provided at the top of the stroke tube (10). A nut (12) is threadedly connected to the middle of the top of the fixing sleeve (11). A fixing mechanism (2) is provided inside the fork barrel (1). The fixing mechanism (2) is used to fix the fixing plate (8).

2. The shock-absorbing front fork with a quick-change spring structure according to claim 1, characterized in that: The fixing mechanism (2) includes two rotating shafts (201). The front side of each rotating shaft (201) is rotatably connected to the rear side of the inside of the fork (1). A small gear (202) is fixedly connected to the front side of each rotating shaft (201). A fixed seat (203) is fixedly connected inside each fork (1). A sliding block (204) is slidably connected inside the fixed seat (203). A T-shaped block (205) is slidably connected inside the sliding block (204). Holes (206) are opened on the adjacent sides of the bottom of the fixing plate (8). The opposite sides of the sliding block (204) are engaged with the inner wall of the corresponding hole (206).

3. A shock-absorbing front fork with a quick-change spring structure according to claim 1, characterized in that: Each of the nuts (12) has a handle (13) fixedly connected to its top, and the stroke tubes (10) are fixedly connected to each other with a fork bridge (14).

4. A shock-absorbing front fork with a quick-change spring structure according to claim 1, characterized in that: The bottom front side of the fork tube (1) is fixedly connected to a fork foot (15), and the adjacent fork feet (15) are rotatably connected to axles (16).

5. A shock-absorbing front fork with a quick-change spring structure according to claim 1, characterized in that: The outer wall of the middle part of the fork tube (1) is fixedly connected with a protective sleeve (17), and the two protective sleeves (17) are symmetrically designed.

6. A shock-absorbing front fork with a quick-change spring structure according to claim 1, characterized in that: The top outer wall of each travel tube (10) is fixedly connected with a second fixing sleeve (18), and adjacent fixing sleeves (11) are fixedly connected with fork shoulders (19).

7. A shock-absorbing front fork with a quick-change spring structure according to claim 6, characterized in that: The top of the fork shoulder (19) is fixedly connected to an upper tube (21), and the bottom outer wall of the upper tube (21) is fixedly connected to a retaining ring (20).

8. A shock-absorbing front fork with a quick-change spring structure according to claim 2, characterized in that: A disc brake mounting bracket (22) is fixedly connected to the rear side of the fork (1) on the right side, and a knob (23) is fixedly connected to the rear side of the pivot (201).

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