Motorcycle frame and bottom fork connecting structure

Abstract

The utility model discloses a motorcycle frame and bottom fork connecting structure, which relates to the technical field of motorcycle parts and comprises a bottom fork structure, the right end of the bottom fork structure is fixedly connected with a connecting sleeve, the front end and the rear end of the connecting sleeve are respectively provided with a connecting mechanism, and the right end of the connecting mechanism is fixedly connected with a motorcycle support. An auxiliary supporting frame is movably connected to the upper portion of the left side of the motorcycle support, and the bottom end of the auxiliary supporting frame is movably connected with the middle of the bottom fork structure. By rotating the knob, the two-way screw rod can drive the threaded sliding plate to rotate, and the sliding clamping plate can be driven to slide through the sliding sleeve plate, so that the sliding clamping plate can be clamped into the fastening groove through sliding of the sliding block in the guide sliding groove and the inclined sliding groove; therefore, the bottom fork can be tightly fixed under the condition that a gap exists, the bottom fork is convenient to use, and the stability of the rear wheel of the motorcycle is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of motorcycle parts, in particular to a motorcycle frame and a fork connection structure. Background Art

[0002] The fork is one of the important parts of a motorcycle or electric vehicle. It is basically composed of two symmetrically arranged arms and a connecting part arranged between the two arms. The overall structure is H-shaped, and the front end is used to connect to the rear wheel axle, and the rear end is hinged and rotated on the frame, playing a supporting and connecting role.

[0003] The existing technology has the following problems:

[0004] When the existing motorcycle frame is connected to the flat fork, it is mostly connected by hinged connection. However, due to the influence of processing accuracy, there will be a gap at the connection, which makes the connection effect poor, thereby failing to ensure the stability of the motorcycle rear wheel and being unfavorable to the use of the flat fork. Utility Model Content

[0005] The utility model provides a motorcycle frame and fork connection structure to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] A motorcycle frame and fork connection structure includes a fork structure, a connecting sleeve is fixedly connected to the right end of the fork structure, a connecting mechanism is arranged at the front and rear ends of the connecting sleeve, a motorcycle bracket is fixedly connected to the right end of the connecting mechanism, an auxiliary support frame is movably connected to the upper left side of the motorcycle bracket, and the bottom end of the auxiliary support frame is movably connected to the middle part of the fork structure.

[0008] The connecting mechanism comprises a connecting pin, the connecting pin passes through and is movably connected to the middle part of the connecting sleeve, and a reinforcing mechanism is arranged on the front and rear sides of the outer surface of the connecting pin, a cross-shaped slide groove is opened on the front and rear sides of the interior of the connecting pin, and eight oblique slide grooves are opened on the inner surface of the cross-shaped slide groove, and the reinforcing mechanism comprises a bidirectional screw, the front and rear ends of the bidirectional screw are respectively movably connected to the interior of the cross-shaped slide groove, the front and rear sides of the outer surface of the bidirectional screw are threadedly connected with a threaded slide plate, the threaded slide plate is slidably connected to the interior of the cross-shaped slide groove, the outer surface of the threaded slide plate is fixedly connected with a sliding sleeve plate in an annular array, and the interior of the sliding sleeve plate is fixedly connected with a sliding clamping plate, the front and rear ends of the connecting sleeve are provided with a fastening groove, the end of the sliding clamping plate away from the sliding sleeve plate passes through the interior of the fastening groove, the two sides of the sliding sleeve plate are provided with guide slide grooves, and the two sides of the sliding clamping plate are fixedly connected with sliding blocks, and the end of the sliding block away from the sliding clamping plate passes through the interior of the oblique slide groove and the outer surface is slidably connected to the inner surface of the guide slide groove.

[0009] A further improvement of the technical solution of the utility model is that the connecting mechanism includes two connecting ear plates 1, which are respectively arranged at the front and rear ends of the connecting sleeve and are fixedly connected to the lower right side of the motorcycle bracket.

[0010] A further improvement of the technical solution of the utility model is that the rear end of the connecting pin penetrates to the rear side of the rear connecting ear plate 1 and is fixedly connected to a baffle, and the rear end of the bidirectional screw penetrates to the rear side of the baffle and is fixedly connected to a knob.

[0011] A further improvement of the technical solution of the utility model is that the front end of the connecting pin penetrates to the front side of the front connecting ear plate and is fixedly connected with a threaded column, the rear side of the outer surface of the threaded column is slidably connected with a gasket, and the front side of the outer surface of the threaded column is threadedly connected with a fastening nut.

[0012] A further improvement of the technical solution of the utility model is that the auxiliary support frame includes a telescopic column, and the upper and lower ends of the telescopic column are slidably sleeved with telescopic sleeves, and the end of the telescopic sleeve away from the telescopic column is rotatably connected to a hinge shaft passing through the front and rear, and the front and rear ends of the hinge shaft are fixedly connected to a second connecting ear plate.

[0013] A further improvement of the technical solution of the utility model is that the two connecting ear plates 2 at the top are fixedly connected to the upper left side of the motorcycle bracket, and the two connecting ear plates 2 at the bottom are fixedly connected to the middle of the flat fork structure.

[0014] A further improvement of the technical solution of the utility model is that: both upper and lower ends of the telescopic column are fixedly connected with sliding pressure plates, the sliding pressure plates are slidably connected inside the telescopic sleeve plate, and a hydraulic damper is fixedly connected to the middle of the side of the sliding pressure plate away from the telescopic column.

[0015] A further improvement of the technical solution of the utility model is that one end of the hydraulic damper away from the sliding pressure plate is fixedly connected to the inner wall of the telescopic sleeve, and a side of the sliding pressure plate away from the telescopic column is fixedly connected to a buffer spring, and the buffer spring is arranged on the outer surface of the hydraulic damper.

[0016] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0017] 1. The utility model provides a connection structure between a motorcycle frame and a flat fork. Through the mutual cooperation among a knob, a bidirectional screw, a threaded slide plate, a sliding sleeve, a sliding card plate, a guide slide groove, and a sliding block, when the flat fork is hinged, the bidirectional screw can drive the threaded slide plate to rotate by rotating the knob, and the sliding card plate can be driven to slide by the sliding sleeve, so that the sliding card plate can be stuck in the fastening groove by the sliding block in the guide slide groove and the oblique slide groove, so that the flat fork can be tightly fixed even in the presence of a gap, which facilitates the use of the flat fork and improves the stability of the rear wheel of the motorcycle.

[0018] 2. The utility model provides a connection structure between a motorcycle frame and a flat fork. Through the mutual cooperation among a telescopic column, a telescopic sleeve, a hinged shaft, a connecting ear plate 2, a sliding pressure plate, a hydraulic damper, and a buffer spring, when the flat fork is connected, the middle part of the flat fork is also vertically supported by an auxiliary support frame, which can make the fixing effect of the flat fork better. At the same time, the sliding pressure plate is driven by the telescopic column to squeeze the hydraulic damper and the buffer spring, which can provide a certain shock-absorbing effect for the rear wheel when the flat fork is in use, making the use of the flat fork more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 It is a cross-sectional structural schematic diagram of the connecting sleeve and the connecting mechanism of the utility model;

[0021] Figure 3 It is a schematic diagram of the cross-sectional structure of the reinforcement mechanism of the utility model;

[0022] Figure 4 It is a schematic diagram of the cross-sectional structure of the sliding sleeve of the utility model;

[0023] Figure 5It is a schematic diagram of the cross-sectional structure of the auxiliary support frame of the utility model.

[0024] In the figure: 1. flat fork structure; 2. connecting sleeve; 21. fastening groove; 3. connecting mechanism; 31. connecting ear plate one; 32. baffle; 33. connecting pin; 331. cross-shaped slide groove; 332. oblique slide groove; 34. threaded column; 35. gasket; 36. fastening nut; 37. reinforcement mechanism; 371. knob; 372. bidirectional screw; 373. threaded slide plate; 374. sliding sleeve; 375. sliding card plate; 376. guide slide groove; 377. sliding block; 4. motorcycle bracket; 5. auxiliary support frame; 51. telescopic column; 52. telescopic sleeve; 53. hinge shaft; 54. connecting ear plate two; 55. sliding pressure plate; 56. hydraulic damper; 57. buffer spring. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods:

[0026] like Figure 1-2 As shown, the utility model provides a motorcycle frame and a flat fork connection structure, including a flat fork structure 1, a connecting sleeve 2 is fixedly connected to the right end of the flat fork structure 1, a connecting mechanism 3 is arranged at the front and rear ends of the connecting sleeve 2, a motorcycle bracket 4 is fixedly connected to the right end of the connecting mechanism 3, an auxiliary support frame 5 is movably connected to the upper left side of the motorcycle bracket 4, the bottom end of the auxiliary support frame 5 is movably connected to the middle part of the flat fork structure 1, the connecting mechanism 3 includes a connecting pin 33, the connecting pin 33 passes through the middle part of the connecting sleeve 2, and the outer surface of the connecting pin 33 is movably connected to the middle part of the flat fork structure 1. A reinforcing mechanism 37 is arranged on the side, and the connecting mechanism 3 includes two connecting ear plates 31, which are respectively arranged at the front and rear ends of the connecting sleeve 2 and are fixedly connected to the lower right side of the motorcycle bracket 4. The rear end of the connecting pin 33 penetrates to the rear side of the rear connecting ear plate 31 and is fixedly connected to a baffle 32. The front end of the connecting pin 33 penetrates to the front side of the front connecting ear plate 31 and is fixedly connected to a threaded column 34. A gasket 35 is slidably connected to the rear side of the outer surface of the threaded column 34, and a fastening nut 36 is threadedly connected to the front side of the outer surface of the threaded column 34.

[0027] When connecting the motorcycle frame and the flat fork, the connecting sleeve 2 at the right end of the flat fork structure 1 is placed between the two connecting ear plates 31, and the connecting pin 33 is inserted into the connecting sleeve 2 from the connecting ear plate 31 on the rear side and out from the connecting ear plate 31 on the front side. Then, the gasket 35 is put on the threaded column 34, and the fastening nut 36 is screwed on. The connecting pin 33 can be fixed by the baffle 32 and the gasket 35, so that the connection of the flat fork structure 1 is realized by the connecting pin 33 and the connecting sleeve 2. In addition, the motorcycle bracket 4 will also vertically support the middle part of the flat fork structure 1 through the auxiliary support frame 5, which can make the fixing effect of the flat fork better and facilitate the use of the flat fork.

[0028] like Figure 3-4 As shown, the utility model provides a motorcycle frame and flat fork connection structure, the front and rear sides of the interior of the connecting pin 33 are both provided with a cross-shaped slide groove 331, the inner surface of the cross-shaped slide groove 331 is provided with eight oblique slide grooves 332, the reinforcement mechanism 37 includes a bidirectional screw rod 372, the front and rear ends of the bidirectional screw rod 372 are respectively movably connected to the interior of the cross-shaped slide groove 331, the front and rear sides of the outer surface of the bidirectional screw rod 372 are both threadedly connected with a threaded slide plate 373, the threaded slide plate 373 is slidably connected to the interior of the cross-shaped slide groove 331, and the outer surface of the threaded slide plate 373 is fixedly connected with a sliding sleeve plate 374 in an annular array. The interior of the sliding sleeve 374 is fixedly connected with a sliding card plate 375, and fastening grooves 21 are provided at both ends of the connecting sleeve 2. The end of the sliding card plate 375 away from the sliding sleeve 374 penetrates into the interior of the fastening groove 21. Both sides of the sliding sleeve 374 are provided with guide grooves 376. Both sides of the sliding card plate 375 are fixedly connected with sliding blocks 377. The end of the sliding block 377 away from the sliding card plate 375 penetrates into the interior of the oblique groove 332 and the outer surface is slidably connected with the inner surface of the guide groove 376. The rear end of the bidirectional screw 372 penetrates to the rear side of the baffle 32 and is fixedly connected with a knob 371.

[0029] When tightening the planar fork, by rotating the knob 371, the bidirectional screw 372 can be rotated, and the threaded slide plate 373 can be driven to rotate inside the cross-shaped slide groove 331, and the sliding clamp plate 375 can be driven to slide through the sliding sleeve 374, so that the sliding block 377 can slide in the guide slide groove 376 and the oblique slide groove 332, so that the sliding clamp plate 375 can be extended from the inside of the sliding sleeve 374 and can be stuck in the fastening groove 21, so that the planar fork can be tightly fixed even in the presence of a gap, which facilitates the use of the planar fork and improves the stability of the rear wheel of the motorcycle.

[0030] like Figure 5As shown, the utility model provides a motorcycle frame and a flat fork connection structure, the auxiliary support frame 5 includes a telescopic column 51, the upper and lower ends of the telescopic column 51 are slidably sleeved with a telescopic sleeve 52, the end of the telescopic sleeve 52 away from the telescopic column 51 is rotatably connected to a hinge shaft 53 that penetrates front and back, the front and rear ends of the hinge shaft 53 are fixedly connected to a connecting ear plate 2 54, the two connecting ear plates 2 54 at the top are fixedly connected to the upper left side of the motorcycle bracket 4, and the two connecting ear plates 2 54 at the bottom are fixedly connected to the middle of the flat fork structure 1, the upper and lower ends of the telescopic column 51 are fixedly connected to a sliding pressure plate 55, the sliding pressure plate 55 is slidably connected to the inside of the telescopic sleeve 52, the middle part of the side of the sliding pressure plate 55 away from the telescopic column 51 is fixedly connected to a hydraulic damper 56, the end of the hydraulic damper 56 away from the sliding pressure plate 55 is fixedly connected to the inner wall of the telescopic sleeve 52, and the side of the sliding pressure plate 55 away from the telescopic column 51 is fixedly connected to a buffer spring 57, and the buffer spring 57 is arranged on the outer surface of the hydraulic damper 56;

[0031] When the flat fork is connected, the hinge shaft 53 at the upper and lower ends and the connecting ear plate 54 can enable the motorcycle bracket 4 to vertically support the middle part of the flat fork structure 1 through the auxiliary support frame 5, which can make the fixing effect of the flat fork better. When the motorcycle is in use, the sliding pressure plate 55 can be driven by the telescopic column 51 to slide inside the telescopic sleeve 52, so that the buffer spring 57 can be squeezed, which can provide a certain shock-absorbing effect for the rear wheel when the flat fork is in use, and the shock-absorbing effect can be better by squeezing the hydraulic damper 56, making the use of the flat fork more convenient.

[0032] The working principle of the motorcycle frame and the flat fork connection structure will be described in detail below.

[0033] like Figure 1-5As shown, when connecting the motorcycle frame and the flat fork, the connecting sleeve 2 at the right end of the flat fork structure 1 is placed between the two connecting ear plates 31, and the connecting pin 33 is inserted into the connecting sleeve 2 from the connecting ear plate 31 on the rear side and passes out from the connecting ear plate 31 on the front side. Then, the gasket 35 is sleeved on the threaded column 34, and the fastening nut 36 is screwed on to complete the connection of the flat fork structure 1. By rotating the knob 371, the bidirectional screw 372 can drive the threaded slide plate 373 to rotate, and the sliding sleeve plate 374 can be used to connect the motorcycle frame and the flat fork structure 1. The sliding card plate 375 is driven to slide, so that the sliding block 377 can slide in the guide slot 376 and the oblique slot 332, so that the sliding card plate 375 can be stuck in the fastening slot 21, so that the flat fork can be tightly fixed even in the presence of a gap, thereby improving the connection effect. In addition, through the hinge shaft 53 at the upper and lower ends and the connecting ear plate 2 54, the motorcycle bracket 4 can be used to vertically support the middle part of the flat fork structure 1 through the auxiliary support frame 5, which can make the fixing effect of the flat fork better and facilitate the use of the flat fork.

[0034] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A motorcycle frame and fork connection structure, comprising a fork structure (1), wherein the right end of the fork structure (1) is fixedly connected to a connecting sleeve (2), characterized in that: A connecting mechanism (3) is provided at the front and rear ends of the connecting sleeve (2); the right end of the connecting mechanism (3) is fixedly connected to a motorcycle bracket (4); an auxiliary support frame (5) is movably connected to the upper left side of the motorcycle bracket (4); and the bottom end of the auxiliary support frame (5) is movably connected to the middle of the flat fork structure (1); The connecting mechanism (3) comprises a connecting pin (33), the connecting pin (33) passes through the middle part of the connecting sleeve (2) and is movably connected to the front and rear sides of the outer surface of the connecting pin (33), a reinforcing mechanism (37) is arranged on the front and rear sides of the inner part of the connecting pin (33), a cross-shaped slide groove (331) is arranged on the front and rear sides of the inner part of the connecting pin (33), and eight oblique slide grooves (332) are arranged on the inner surface of the cross-shaped slide groove (331), and the reinforcing mechanism (37) comprises a bidirectional screw rod (372), the front and rear ends of the bidirectional screw rod (372) are movably connected to the inner part of the cross-shaped slide groove (331), and the front and rear ends of the outer surface of the bidirectional screw rod (372) are threadedly connected to the threaded slide plate (373), and the threaded slide plate (373) is slidably connected to the cross-shaped slide groove. (331), the outer surface of the threaded slide plate (373) is fixedly connected to a sliding sleeve (374) in an annular array, the sliding sleeve (374) is fixedly connected to a sliding clamp (375) inside, the front and rear ends of the connecting sleeve (2) are provided with fastening grooves (21), the end of the sliding clamp (375) away from the sliding sleeve (374) passes through the inside of the fastening groove (21), the two sides of the sliding sleeve (374) are provided with guide grooves (376), the two sides of the sliding clamp (375) are fixedly connected to sliding blocks (377), the end of the sliding block (377) away from the sliding clamp (375) passes through the inside of the oblique groove (332) and the outer surface is slidably connected to the inner surface of the guide groove (376).

2. The motorcycle frame and fork connection structure according to claim 1, characterized in that: The connecting mechanism (3) comprises two connecting ear plates (31), which are respectively arranged at the front and rear ends of the connecting sleeve (2) and are both fixedly connected to the lower right side of the motorcycle bracket (4).

3. The motorcycle frame and fork connection structure according to claim 2, characterized in that: The rear end of the connecting pin (33) passes through the rear side of the rear connecting ear plate (31) and is fixedly connected to the baffle (32), and the rear end of the bidirectional screw (372) passes through the rear side of the baffle (32) and is fixedly connected to the knob (371).

4. The motorcycle frame and fork connection structure according to claim 2, characterized in that: The front end of the connecting pin (33) passes through the front side of the front connecting ear plate (31) and is fixedly connected to a threaded column (34); a gasket (35) is slidably connected to the rear side of the outer surface of the threaded column (34); and a fastening nut (36) is threadedly connected to the front side of the outer surface of the threaded column (34).

5. The motorcycle frame and fork connection structure according to claim 1, characterized in that: The auxiliary support frame (5) comprises a telescopic column (51), and the upper and lower ends of the telescopic column (51) are slidably sleeved with a telescopic sleeve plate (52), and one end of the telescopic sleeve plate (52) away from the telescopic column (51) is rotatably connected to a hinge shaft (53) that passes through the front and rear, and the front and rear ends of the hinge shaft (53) are fixedly connected to a second connecting ear plate (54).

6. The motorcycle frame and fork connection structure according to claim 5, characterized in that: The two connecting ear plates (54) at the top are both fixedly connected to the upper left side of the motorcycle bracket (4), and the two connecting ear plates (54) at the bottom are both fixedly connected to the middle of the flat fork structure (1).

7. The motorcycle frame and fork connection structure according to claim 6, characterized in that: The upper and lower ends of the telescopic column (51) are fixedly connected with sliding pressure plates (55), and the sliding pressure plates (55) are slidably connected inside the telescopic sleeve (52). The middle part of the sliding pressure plate (55) away from the telescopic column (51) is fixedly connected with a hydraulic damper (56).

8. The motorcycle frame and fork connection structure according to claim 7, characterized in that: One end of the hydraulic damper (56) away from the sliding pressure plate (55) is fixedly connected to the inner wall of the telescopic sleeve (52), and one side of the sliding pressure plate (55) away from the telescopic column (51) is fixedly connected to a buffer spring (57), and the buffer spring (57) is arranged on the outer surface of the hydraulic damper (56).

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