Rear upper fork soil removing distance fine adjustment structure
By introducing a sliding adjustment block and locking screw into the dirt-removing structure of the bicycle's rear upper fork, the friction problem caused by loosening in traditional fixing methods is solved, enabling precise adjustment and stable fixing of the dirt-removing distance from the tire, thus improving the riding experience.
Patent Information
- Application Number
- CN202520602161.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-29
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-03-29
AI Technical Summary
The traditional bicycle rear seat fork's fixed connection to the tire is prone to loosening, leading to friction and wear, and it is difficult to maintain a proper gap, affecting the riding experience.
The system employs a sliding adjustment block and locking screw structure. By adjusting the relative position of the sliding adjustment block and the upper fork bridge plate, the distance between the soil remover and the tire can be precisely adjusted, and the locking screw is used to fix it to avoid friction.
This design achieves a suspended and fixed soil removal system, avoiding friction with the tires and improving riding comfort and ease of assembly.
Smart Images

Figure CN223949277U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a bicycle, especially to a rear upper fork mudguard spacing fine adjustment structure. BACKGROUND
[0002] In the traditional rear upper fork mudguard mounting structure, the mudguard is fixedly connected with the upper support rod welded with the frame upper fork through a screw, and the other end of the mudguard is supported and fixed at the rear end of the mudguard by a mudguard support, and the mudguard support is locked and connected with the lock hole of the rear hook claw section of the frame. Although this fixed connection method is simple, it has obvious defects in actual application. When riding for a certain period of time, the locking relationship between the mudguard and the lock hole of the upper support rod will gradually loosen, which will cause the mudguard to shake slightly. During the riding process, the mudguard will touch the tire end face and wear the tire. In addition, the upper support rod circular hole locking point will be deformed, and it is difficult to achieve a reasonable gap between the mudguard and the tire even if the locking is repeated. In addition, the mudguard shaking will also cause the gap between the mudguard support and the rear hook claw lock hole to become larger and looser, resulting in more serious friction. The screw rod will also lose the fastening effect. With the extension of the service life, the tire may rub against the inner edge of the mudguard during riding, and then the friction sound will occur, and the riding feeling is poor. SUMMARY
[0003] The technical problem to be solved by the utility model is to provide a rear upper fork mudguard spacing fine adjustment structure which can suspend and fix the mudguard, avoid friction between the mudguard and the tire, and facilitate assembly and adjustment.
[0004] To solve the above technical problems, the utility model adopts the following technical scheme.
[0005] A rear upper fork mudguard spacing fine adjustment structure comprises a middle pipe, a mudguard support, a mudguard, a sliding adjustment block and a rear upper fork. The middle pipe is arranged at the front end of the rear upper fork. The mudguard support is fixed to the rear end of the rear upper fork. The mudguard is fixedly connected with the mudguard support through a top screw. The rear upper fork is fixedly connected with an upper fork bridge piece. The upper fork bridge piece is located on the outer side of the mudguard. A sliding groove is formed in the sliding adjustment block. A locking hole is arranged on the upper fork bridge piece. The sliding adjustment block and the upper fork bridge piece are fixedly connected through a locking screw arranged in the sliding groove and the locking hole. The end part of the sliding adjustment block is fixedly connected with the mudguard through a fastening screw. The relative position of the sliding adjustment block and the locking screw is adjusted to adjust the spacing between the mudguard and the tire.
[0006] Preferably, a mudguard reinforcing rib is attached to the inner side of the mudguard. A screw seat is arranged on the mudguard reinforcing rib and is screwed with the top screw.
[0007] Preferably, the outer side of the soil reinforcement is provided with a nut groove with a "T" shaped cross section, and a slidable locking nut is provided in the nut groove, and the fastening screw is screwed into the locking nut.
[0008] Preferably, a locking nut that engages with the locking screw is provided below the sliding adjusting block.
[0009] Preferably, the sliding adjustment block is L-shaped.
[0010] Preferably, the upper end of the soil removal support has an inverted "U"-shaped soil removal fixing part, and the soil removal is located on the inner side of the soil removal fixing part.
[0011] Preferably, the upper fork bridge piece is triangular.
[0012] In the rear upper fork ground clearance fine-tuning structure disclosed in this utility model, the center tube and the rear upper fork are respectively located in the middle and rear of the bicycle frame. The front end of the rear upper fork is fixedly connected to the center tube, and the upper fork bridge plate is fixedly installed on the inner side of the front end of the rear upper fork. The sliding adjustment block is attached to the bottom of the upper fork bridge plate. The two are fixedly connected by the locking screw. Since the locking screw passes through the sliding groove and the two slide together, the relative position of the sliding adjustment block and the upper fork bridge plate can be adjusted when the locking screw is loosened, thereby adjusting the ground clearance to an appropriate position. Then the locking screw is tightened to fix it. Based on the above structure and principle, this utility model can suspend and fix the ground clearance, effectively avoiding friction between the ground clearance and the tire, and is convenient for users to assemble and adjust, thus better meeting application needs. Attached Figure Description
[0013] Figure 1 A structural diagram of a bicycle;
[0014] Figure 2 This is a structural diagram of the rear upper fork and the middle tube;
[0015] Figure 3 This is a structural exploded view of the rear upper fork soil removal spacing fine-tuning structure;
[0016] Figure 4 This is a structural diagram of the sliding adjustment block and the soil reinforcement. Detailed Implementation
[0017] The present invention will now be described in more detail with reference to the accompanying drawings and embodiments.
[0018] This utility model discloses a rear upper fork soil removal spacing fine-tuning structure, combined with Figures 1 to 4As shown, it comprises a middle tube 1, a soil removing support 2, a soil remover 3, a sliding adjusting block 4 and a rear upper fork 5, the middle tube 1 is arranged at the front end of the rear upper fork 5, the soil removing support 2 is fixed at the rear end of the rear upper fork 5, the soil remover 3 is fixedly connected with the soil removing support 2 through a top end screw 20, the rear upper fork 5 is fixedly connected with an upper fork bridge plate 6, the upper fork bridge plate 6 is located at the outer side of the soil remover 3, a sliding groove 40 is arranged on the sliding adjusting block 4, a locking hole 60 is arranged on the upper fork bridge plate 6, the sliding adjusting block 4 and the upper fork bridge plate 6 are fixedly connected through a locking screw 41 arranged in the sliding groove 40 and the locking hole 60, the end of the sliding adjusting block 4 and the soil remover 3 are fixedly connected through a fastening screw 42, the relative position of the sliding adjusting block 4 and the locking screw 41 is adjusted, and the distance between the soil remover 3 and the tire is adjusted.
[0019] In the above structure, the middle tube 1 and the rear upper fork 5 are arranged at the middle and rear parts of the bicycle frame respectively, the front end of the rear upper fork 5 is fixedly connected with the middle tube 1, the upper fork bridge plate 6 is fixedly arranged at the inner side of the front end of the rear upper fork 5, the bottom of the upper fork bridge plate 6 is fixedly arranged with the sliding adjusting block 4, and the two are fixedly connected through the locking screw 41, because the locking screw 41 passes through the sliding groove 40 and the two are slidingly matched, so that the relative position of the sliding adjusting block 4 and the upper fork bridge plate 6 can be adjusted when the locking screw 41 is loosened, and then the soil remover 3 is adjusted to the appropriate position, and then the locking screw 41 is tightened and fixed, based on the above structure and principle, the soil remover can be suspended and fixed, the friction between the soil remover and the tire is effectively avoided, the user can conveniently assemble and adjust, and the application requirement is better met.
[0020] In actual application, the soil remover is generally an arc-shaped and thin plastic part or hardware part, in order to reliably fix the soil remover and improve the stress strength, in the embodiment, the inner side of the soil remover 3 is fixedly arranged with a soil remover reinforcing rib 7, and the soil remover reinforcing rib 7 is arranged with a screw seat 70 which is screwed with the top end screw 20.
[0021] As a preferred mode, in combination with Figure 3 and Figure 4 As shown, the outer side of the soil remover reinforcing rib 7 is arranged with a nut sliding groove 71 with a "T"-shaped cross section, the nut sliding groove 71 is arranged with a locking nut 72 which can slide, and the fastening screw 42 is screwed with the locking nut 72.
[0022] In actual application, when the position of the sliding adjusting block 4 is adjusted, the relative position between the fastening screw 42 and the soil removal reinforcing rib 7 will change slightly. In order to match the position of the sliding adjusting block 4, in the embodiment, the soil removal reinforcing rib 7 is provided with the nut sliding groove 71, the cross section of the nut sliding groove 71 is in the shape of "T", and the locking nut 72 can slide in the nut sliding groove 71, so as to be well matched with the sliding adjusting block 4.
[0023] In order to conveniently screw the locking nut 43, in the embodiment, the lower side of the sliding adjusting block 4 is provided with the locking nut 43 which is screwed with the locking screw 41.
[0024] As a preferred mode, the sliding adjusting block 4 is in the shape of "L". The "L" shape structure is convenient for arranging the sliding groove 40 and is also beneficial for arranging the fastening screw 42.
[0025] Regarding the specific structure of the soil removal support 2, in the embodiment, the upper end of the soil removal support 2 is formed with the soil removal fixing part 21 in the shape of inverted "U", and the soil removal 3 is arranged on the inner side of the soil removal fixing part 21.
[0026] Please refer to Figures 1 to 3 In the embodiment, the upper cross bridge 6 is in the shape of triangle. The triangle structure can conveniently fix the upper cross bridge 6 between the left and right cross rods of the rear upper cross 5.
[0027] Based on the above structure and principle, it can be seen that in the embodiment, the sliding adjusting block is additionally arranged in the soil removal mounting structure, the same circle degree of the soil removal and the tire can be accurately adjusted, the built-in elliptical long hole hollow structure of the soil removal sliding block can slide at any position in the hole through the adjusting screw, and after the distance between the soil removal, the soil removal support and the tire reaches the extreme same circle degree, the sliding block can be accurately locked and fixed at the corresponding position. The surface of the sliding block which is connected with the soil removal is a convex surface, the contact area with the soil removal can be increased, and the locking hole structure is arranged.
[0028] Meanwhile, the soil removal is provided with the soil removal reinforcing rib, the reinforcing rib is designed with the groove structure, the locking nut is fixed through the groove structure, the locking nut is conveniently clamped into the soil removal reinforcing rib, the soil removal reinforcing rib is provided with a group of locking holes which are connected with the soil removal, the soil removal reinforcing rib is locked in the soil removal through the locking holes, and the soil removal reinforcing rib can be used to support the soil removal structure to be not deformed and to keep the present characteristics for a long time.
[0029] In addition, the soil removing support is a "V" type support structure, which is a left-right symmetrical structure, and has a group of mounting holes parallel to the center surface of the vehicle frame. The soil removing support is locked in the corresponding locking holes of the rear hook of the vehicle frame through the mounting holes. This mounting hole direction is more secure than the perpendicular to the center surface of the vehicle frame and the left and right side surface mounting hole mode of the rear hook. The vehicle is more prone to up and down jolts. The locking hole direction parallel to the center surface of the vehicle frame can resist jolts better and is not prone to loosening. The top of the soil removing support has a group of locking holes for locking connection with the soil removing device and the soil removing reinforcing rib, and the reinforcing rib is hidden in the soil removing device to be more secure.
[0030] The above description is only the preferred embodiment of the present application and is not used to limit the present application. Any modification, equivalent replacement or improvement within the technical scope of the present application shall be included in the scope of protection of the present application.
Claims
1. A rear upper fork soil removal spacing fine-tuning structure, characterized in that, The utility model relates to a soil removing device for agricultural machinery, which comprises a middle tube (1), a soil removing support (2), a soil removing device (3), a sliding adjusting block (4) and a rear upper fork (5), wherein the middle tube (1) is arranged at the front end of the rear upper fork (5), the soil removing support (2) is fixed to the rear end of the rear upper fork (5), the soil removing device (3) is fixedly connected to the soil removing support (2) through a top screw (20), the rear upper fork (5) is fixedly connected with an upper fork web (6), the upper fork web (6) is located outside the soil removing device (3), the sliding adjusting block (4) is provided with a sliding groove (40), the upper fork web (6) is provided with a locking hole (60), the sliding adjusting block (4) and the upper fork web (6) are fixedly connected through a locking screw (41) arranged in the sliding groove (40) and the locking hole (60), the end of the sliding adjusting block (4) is fixedly connected to the soil removing device (3) through a fastening screw (42), and the distance between the soil removing device (3) and the tire is adjusted by adjusting the relative position of the sliding adjusting block (4) and the locking screw (41).
2. The rear upper wishbone soil removal spacing fine tuning structure of claim 1, wherein, The inner side of the soil removing device (3) is attached with a soil removing reinforcing rib (7), and the soil removing reinforcing rib (7) is provided with a screw seat (70) that is screwed with the top screw (20).
3. The rear upper wishbone track adjustment structure of claim 2, wherein The outer side of the soil removing reinforcing rib (7) is provided with a nut sliding groove (71) in the shape of a "T" section, the nut sliding groove (71) is provided with a locking nut (72) that can slide, and the fastening screw (42) is screwed with the locking nut (72).
4. The rear upper wishbone de-dusting gap micro-adjustment structure according to claim 1, wherein The lower side of the sliding adjusting block (4) is provided with a locking nut (43) that is screwed with the locking screw (41).
5. The rear upper wishbone de-dusting gap micro-adjustment structure according to claim 1, wherein The sliding adjusting block (4) is in the shape of an "L".
6. The rear upper wishbone track adjustment structure of claim 1, wherein The upper end of the soil removing support (2) is formed with a soil removing fixing part (21) in the shape of an inverted "U", and the soil removing device (3) is arranged at the inner side of the soil removing fixing part (21).
7. The rear upper wishbone track adjustment structure of claim 1, wherein The upper fork web (6) is in the shape of a triangle.