Bicycle rear fork clamp
By designing the bottom plate and block assembly of the bicycle rear fork fixture and fixing the fork pipe with fixed grooves and drive parts, the fork pipe is solved, and the fork pipe is stable and precisely processed.
Patent Information
- Application Number
- CN202422474857.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-14
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-10-14
AI Technical Summary
During the cutting and welding process, the fork tube of the bicycle rear fork has poor fixed stability due to irregular shape, resulting in large manufacturing errors.
A bicycle rear fork clamp is designed, including a base plate and a holder assembly, with fixed grooves in different directions for accommodating the bent or taper sections of the fork tube, and the fork tube is fixed by a drive member and a press member to prevent it from moving during processing.
Effectively prevent the fork pipe from moving relative to the bracket during cutting or welding, reduce manufacturing errors, and improve the fixing stability and processing accuracy of the fork pipe.
Smart Images
Figure CN223146993U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bicycles, in particular to a bicycle rear fork fixture. Background Art
[0002] The bicycle rear fork includes an upper fork and a lower fork. Both the upper fork and the lower fork include two fork tubes. During the manufacturing process of the two fork tubes, the required shapes are made through forms such as tube drawing, preforming, forming, and water injection. Finally, the two fork tubes are symmetrical to each other and each has an irregular shape. Subsequently, when cutting and welding the two fork tubes, it is necessary to fix the two fork tubes. Since the fork tubes have irregular shapes, the fork tubes have poor fixing stability, and during subsequent cutting and welding, the fork tubes move, thereby causing large errors in the manufacturing of the upper fork or the lower fork.
[0003] Therefore, there is an urgent need for a bicycle rear fork fixture to solve the above problems. Summary of the Utility Model
[0004] The purpose of the utility model is to provide a bicycle rear fork fixture to solve the problem that in the related technology, due to the irregular shapes of the fork tubes, the fork tubes have poor fixing stability, and during subsequent cutting and welding, the fork tubes move, thereby causing large errors in the manufacturing of the rear fork.
[0005] The utility model provides a bicycle rear fork fixture for fixing two fork tubes of an upper fork or a lower fork. The bicycle rear fork fixture includes:
[0006] A bottom plate;
[0007] A support block assembly, including a support block. The support block is arranged on the bottom plate. Two fixing grooves extending along a first direction are recessed on one side of the support block away from the bottom plate. The two fixing grooves are arranged at intervals along a second direction, and the two fixing grooves are symmetrically arranged. The two fixing grooves are respectively used for accommodating the bent sections or tapered sections of the two fork tubes, and the groove walls of the fixing grooves are attached to the outer peripheral walls of the corresponding bent sections or tapered sections of the fork tubes. The first direction and the second direction are perpendicular.
[0008] As a preferred technical solution of the bicycle rear fork fixture, at least two support block assemblies are provided, and at least two support blocks are arranged at intervals along the first direction.
[0009] As a preferred technical solution of the bicycle rear fork fixture, anti-fooling guide holes are arranged at positions of the bottom plate opposite to the support blocks;
[0010] The support block is provided with guide posts opposite to the anti-fooling guide holes, and the guide posts are inserted into the anti-fooling guide holes.
[0011] As a preferred technical solution of the bicycle rear fork fixture, an anti-fooling groove is provided at a position of the bottom plate opposite to the supporting block;
[0012] The supporting block is convexly provided with an anti-fooling protrusion opposite to the anti-fooling groove, and the anti-fooling protrusion is inserted into the anti-fooling groove.
[0013] As a preferred technical solution of the bicycle rear fork fixture, the supporting block assembly further includes a driving member and a pressing member. The driving member drives the pressing member to slide relative to the supporting block in a third direction and has a first position and a second position. The first position is that the pressing member abuts against the surface of the supporting block away from the bottom plate to close the notch of the fixing groove in the third direction, and the second position is that the pressing member is spaced from the supporting block in the third direction. The third direction is perpendicular to the first direction and the second direction respectively.
[0014] As a preferred technical solution of the bicycle rear fork fixture, the driving member is provided with an oblong hole extending along the first direction;
[0015] The bottom plate is provided with a threaded hole opposite to the oblong hole, and a locking bolt passes through the oblong hole and is screwed with the inner wall of the threaded hole.
[0016] As a preferred technical solution of the bicycle rear fork fixture, the pressing member includes a support plate and a rubber strip. The support plate is fixedly connected to the driving end of the driving member, and the side surface of the support plate opposite to the supporting block is fixedly connected to the rubber strip.
[0017] As a preferred technical solution of the bicycle rear fork fixture, the driving member is a driving cylinder.
[0018] As a preferred technical solution of the bicycle rear fork fixture, a positioning pin protrudes from a side of the bottom plate away from the supporting block assembly.
[0019] As a preferred technical solution of the bicycle rear fork fixture, a reference line is engraved on the surface of the supporting block away from the bottom plate, and the reference line is a straight line extending along the second direction.
[0020] The beneficial effects of the present utility model are:
[0021] The present utility model provides a bicycle rear fork fixture for fixing two fork tubes of an upper fork or a lower fork. The bicycle rear fork fixture includes a bottom plate and a support block assembly. The support block assembly includes a support block disposed on the bottom plate. On a side of the support block away from the bottom plate, two fixing grooves extending in a first direction are recessed. The two fixing grooves are spaced along a second direction and symmetrically arranged. The two fixing grooves are respectively used for accommodating the bent sections or tapered sections of the two fork tubes, and the groove walls of the fixing grooves are attached to the outer peripheral walls of the corresponding bent sections or tapered sections of the fork tubes. The first direction and the second direction are perpendicular. When processing the upper fork or the lower fork, since the fixing grooves on the two support blocks are recessed by imitating the bent sections or tapered sections of the two fork tubes, when the bent sections or tapered sections of the two fork tubes are disposed in the corresponding two fixing grooves, the support block can prevent the two fork tubes from moving in the fixing grooves. In subsequent cutting or welding, the fork tubes will not move relative to the support block, thereby reducing the manufacturing error of the upper fork or the lower fork. Description of the Drawings
[0022] Figure 1 Structural schematic diagram of the bicycle rear fork fixture in the embodiment of the present utility model Figure 1 (The pressing member is in the first position);
[0023] Figure 2 Structural schematic diagram of the bicycle rear fork fixture in the embodiment of the present utility model Figure 2 (The pressing member is in the first position);
[0024] Figure 3 Structural schematic diagram of the bicycle rear fork fixture in the embodiment of the present utility model Figure 3 (The pressing member is in the first position);
[0025] Figure 4 Structural schematic diagram of the bicycle rear fork fixture in the embodiment of the present utility model Figure 1 (The pressing member is in the second position).
[0026] In the figure:
[0027] X, the first direction; Y, the second direction; Z, the third direction;
[0028] 100, fork tube;
[0029] 1, bottom plate; 11, anti-fooling guiding hole; 12, anti-fooling groove; 13, positioning pin;
[0030] 2, support block assembly; 21, support block; 211, fixing groove; 212, anti-fooling protrusion; 213, reference line; 22, driving member; 221, waist-shaped hole; 23, pressing member; 231, support plate; 232, rubber strip. Detailed Description of the Embodiment
[0031] The technical solution of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0032] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions. Moreover, the first feature being "above", "over" and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "under" the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicating that the first feature has a lower horizontal height than the second feature.
[0033] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "connected" and "coupled" shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0034] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation of the present utility model.
[0035] As Figures 1 to 4As shown in the figure, this embodiment provides a bicycle rear fork fixture for fixing two fork tubes 100 of an upper fork or a lower fork. The bicycle rear fork fixture includes a bottom plate 1 and a support block assembly 2. The support block assembly 2 includes a support block 21. The support block 21 is arranged on the bottom plate 1. On the side of the support block 21 away from the bottom plate 1, two fixing grooves 211 extending along the first direction X are recessed. The two fixing grooves 211 are spaced along the second direction Y, and the two fixing grooves 211 are symmetrically arranged. The two fixing grooves 211 are respectively used to accommodate the bent sections or tapered sections of the two fork tubes 100, and the groove walls of the fixing grooves 211 are attached to the outer peripheral walls of the corresponding bent sections or tapered sections of the fork tubes 100. The first direction X and the second direction Y are perpendicular. When machining the upper fork or the lower fork, since the fixing grooves 211 on the two support blocks 21 are recessed by imitating the bent sections or tapered sections of the two fork tubes 100, when the bent sections or tapered sections of the two fork tubes 100 are arranged in the corresponding two fixing grooves 211, the support block 21 can prevent the two fork tubes 100 from moving in the fixing grooves 211. In subsequent cutting or welding, the fork tubes 100 will not move relative to the support block 21, thereby reducing the manufacturing error of the upper fork or the lower fork and ensuring that the two fork tubes 100 are symmetrically arranged.
[0036] Optionally, there are at least two support block assemblies 2, and at least two support blocks 21 are spaced along the first direction X. In this embodiment, at least two support blocks 21 are spaced along the first direction X. This setting enables the two fork tubes 100 to have multiple support points along the first direction X, which can further improve the stability of fixing the two fork tubes 100 and facilitate the position accuracy during subsequent welding or shearing of the two fork tubes 100. Specifically, two support blocks 21 are provided in this application.
[0037] Optionally, anti-fooling guide holes 11 are arranged at the position of the bottom plate 1 opposite to the support block 21; the support block 21 is provided with guide posts opposite to the anti-fooling guide holes 11, and the guide posts are inserted into the anti-fooling guide holes 11. In this embodiment, the guide posts are inserted into the anti-fooling guide holes 11, thereby realizing the rapid positioning of the support block 21 relative to the bottom plate 1. Specifically, there are multiple anti-fooling guide holes 11, and multiple guide posts are provided and are inserted into the multiple anti-fooling guide holes 11 in one-to-one correspondence.
[0038] Optionally, anti-fooling grooves 12 are arranged at the position of the bottom plate 1 opposite to the support block 21; the support block 21 is convexly provided with anti-fooling protrusions 212 opposite to the anti-fooling grooves 12, and the anti-fooling protrusions 212 are inserted into the anti-fooling grooves 12. In this embodiment, the anti-fooling protrusions 212 are inserted into the anti-fooling grooves 12, which can further realize the rapid positioning of the support block 21 relative to the bottom plate 1. Specifically, the anti-fooling grooves 12 are rectangular, and the anti-fooling protrusions 212 are inserted into the anti-fooling grooves 12 and are in contact with the peripheral walls of the anti-fooling grooves 12.
[0039] Optionally, the fastening bolt passes through the bottom plate 1 and is screwed to the bracket 21. In other embodiments, the bottom plate 1 and the bracket 21 are fixed by clamping.
[0040] Optionally, the support block assembly 2 further includes a driving member 22 and a pressing member 23. The driving member 22 drives the pressing member 23 to slide relative to the support block 21 along the third direction Z and has a first position and a second position. The first position is that the pressing member 23 abuts against the surface of the support block 21 away from the bottom plate 1 to close the notch of the fixing groove 211 along the third direction Z. The second position is that the pressing member 23 and the support block 21 are spaced apart along the third direction Z. The third direction Z is respectively perpendicular to the first direction X and the second direction Y. In this embodiment, when the fork tube 100 is welded or sheared, at this time, both ends of the fork tube 100 will be subjected to a force along the third direction Z, and then the fork tube 100 may be tilted relative to the support block 21. To prevent this problem from occurring, the pressing member 23 is adjusted to the first position. At this time, the pressing member 23 presses the fork tube 100 in the fixing groove 211, thereby preventing the fork tube 100 from tilting along the third direction Z.
[0041] Optionally, the driving member 22 is provided with a waist-shaped hole 221, and the waist-shaped hole 221 extends along the first direction X; the bottom plate 1 is provided with a threaded hole opposite to the waist-shaped hole 221, and the locking bolt passes through the waist-shaped hole 221 and is screwed with the hole wall of the threaded hole. In this embodiment, when the locking bolt is loosened, the locking bolt can move in the waist-shaped hole 221, and then adjust the position of the clamping member 23 relative to the support block 21 along the first direction X, so that the clamping member 23 can be located above the support block 21 along the third direction Z; when the position of the clamping member 23 is adjusted, the locking bolt is tightened to clamp the driving member 22 and the bottom plate 1, thereby achieving the fixing of the driving member 22 relative to the bottom plate 1. Specifically, there are two waist-shaped holes 221, and the two waist-shaped holes 221 are spaced apart along the second direction Y, and there are two locking bolts, and the two locking bolts pass through the two waist-shaped holes 221 respectively and are screwed with the two threaded holes on the bottom plate 1.
[0042] Optionally, the pressing member 23 includes a support plate 231 and a rubber strip 232. The support plate 231 is fixedly connected to the driving end of the driving member 22, and the side of the support plate 231 opposite to the support block 21 is fixedly connected to the rubber strip 232. In this embodiment, when the pressing member 23 is in the first position, the rubber strip 232 directly abuts against the support block 21. Since the rubber strip 232 is elastic, when the fork tube 100 tilts, the fork tube 100 causes the rubber strip 232 to deform elastically, thereby preventing the pressing member 23 from causing the fork tube 100 to deform. The support plate 231 plays a role in supporting and pressing the rubber strip 232.
[0043] Optionally, the driving member 22 is a driving cylinder. In other embodiments, the driving member 22 may also be an oil cylinder, a linear motor, a screw nut structure, a gear rack structure, etc.
[0044] Optionally, a positioning pin 13 protrudes from the side of the bottom plate 1 away from the support block assembly 2. In this embodiment, when fixing the bicycle rear fork fixture, the positioning pin 13 of the bottom plate 1 is inserted into the workbench, and at the same time, a bolt passes through the bottom plate 1 and is screwed with the workbench, thereby realizing the relative fixation of the bottom plate 1 and the workbench.
[0045] Optionally, a reference line 213 is engraved on the surface of the support block 21 away from the bottom plate 1, and the reference line 213 is a straight line extending along the second direction Y. In this embodiment, when welding or cutting one end of two fork tubes 100, it is ensured that the distances from the welding or cutting position to the reference line 213 are the same, thereby ensuring the manufacturing accuracy of the upper fork or the lower fork, and further implementing the concept of "fixture replacing inspection tool".
[0046] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limiting the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.
Claims
1. A bicycle rear fork clamp for fixing two fork tubes (100) of an upper fork or a lower fork, characterized in that Comprising: Base plate (1); Support block assembly (2), including a support block (21), the support block (21) is arranged on the base plate (1), two fixing grooves (211) extending along a first direction (X) are recessed on a side of the support block (21) away from the base plate (1), the two fixing grooves (211) are spaced along a second direction (Y), and the two fixing grooves (211) are symmetrically arranged. The two fixing grooves (211) are respectively used for accommodating the bent sections or tapered sections of the two fork tubes (100), and the groove walls of the fixing grooves (211) are attached to the outer peripheral walls of the corresponding bent sections or tapered sections of the fork tubes (100). The first direction (X) and the second direction (Y) are perpendicular.
2. The bicycle rear fork clamp according to claim 1, characterized in that, There are at least two support block assemblies (2), and at least two support blocks (21) are spaced along the first direction (X).
3. The bicycle rear fork fixture according to claim 1, wherein Anti-fooling guiding holes (11) are arranged at positions of the base plate (1) opposite to the support blocks (21); The support block (21) is provided with guiding columns opposite to the anti-fooling guiding holes (11), and the guiding columns are inserted into the anti-fooling guiding holes (11).
4. The bicycle rear fork clamp according to claim 3, wherein, Anti-fooling grooves (12) are arranged at positions of the base plate (1) opposite to the support blocks (21); The support block (21) is convexly provided with anti-fooling protrusions (212) opposite to the anti-fooling grooves (12), and the anti-fooling protrusions (212) are inserted into the anti-fooling grooves (12).
5. The bicycle rear fork clamp according to claim 1, characterized in that, The support block assembly (2) further includes a driving member (22) and a pressing member (23). The driving member (22) drives the pressing member (23) to slide relative to the support block (21) along a third direction (Z) and has a first position and a second position. The first position is that the pressing member (23) abuts against the surface of the support block (21) away from the base plate (1) to close the notch of the fixing groove (211) along the third direction (Z). The second position is that the pressing member (23) is spaced from the support block (21) along the third direction (Z). The third direction (Z) is perpendicular to the first direction (X) and the second direction (Y) respectively.
6. The bicycle rear fork clamp according to claim 5, wherein The driving member (22) is provided with a waist-shaped hole (221), and the waist-shaped hole (221) extends along the first direction (X); The base plate (1) is provided with a threaded hole opposite to the waist-shaped hole (221), and a locking bolt passes through the waist-shaped hole (221) and is screwed with the hole wall of the threaded hole.
7. The bicycle rear fork clamp according to claim 5, characterized in that, The pressing member (23) includes a support plate (231) and a rubber strip (232). The support plate (231) is fixedly connected to the driving end of the driving member (22), and the side surface of the support plate (231) opposite to the support block (21) is fixedly connected to the rubber strip (232).
8. The bicycle rear fork fixture according to claim 5, characterized in that, The driving member (22) is a driving cylinder.
9. The bicycle rear fork clamp according to any one of claims 1-8, characterized in that A positioning pin (13) is convexly provided on a side of the base plate (1) away from the support block assembly (2).
10. The bicycle rear fork clamp according to any one of claims 1-8, characterized in that, A reference line (213) is engraved on the surface of the support block (21) away from the base plate (1), and the reference line (213) is a straight line extending along the second direction (Y).