Combined motorcycle frame

Abstract

The combined type motorcycle frame comprises a main pipe, a vertical pipe, a tail frame and an engine support, the main pipe comprises a straight pipe section and an arc-shaped pipe section, the right end of the straight pipe section is fixedly connected with the left end of the arc-shaped pipe section, a connecting block is fixedly arranged on the side wall of the vertical pipe, the connecting block is detachably inserted into the left end of the straight pipe section, and the tail frame is connected with the engine support. The connecting block is fixedly connected with the straight pipe section through a bolt, the tail frame is detachably installed on the right side of the arc-shaped pipe section through a bolt, and the engine support is detachably installed at the bottom of the arc-shaped pipe section through a bolt. By means of the arrangement, the vertical pipe, the tail frame and the engine support are detachably installed on the main pipe respectively, when any part is damaged, the purpose of independently disassembling the damaged part can be achieved by loosening the bolts connected between the main pipe and the corresponding part, maintenance is convenient, and meanwhile maintenance cost is saved.

Description

Technical Field

[0001] The utility model belongs to the technical field of motorcycles, and particularly relates to a combined motorcycle frame. Background Art

[0002] As one of the key components of a motorcycle, the motorcycle frame has an important impact on the driving stability and safety. The backbone frame is one type of motorcycle frame, which uses a relatively thick steel pipe as the main beam to support components such as the fuel tank and engine.

[0003] Chinese Patent with the publication number CN200967524Y discloses a motorcycle frame. The solution includes a riser pipe, a main pipe, an upper shock absorber connection support, two rear bracket pipes, and two bracket support pipes. The above solution rigidly connects the upper shock absorber connection support to the main pipe and rigidly connects the rear bracket pipes to the upper shock absorber connection support, ensuring the overall structural strength of the frame.

[0004] During the driving process of a motorcycle, the frame may be damaged due to impact. If the frame in the above solution is damaged, the entire frame needs to be replaced, and the damaged components cannot be replaced individually, resulting in a relatively high maintenance cost. Content of the Utility Model

[0005] The utility model aims to provide a combined motorcycle frame to solve the problem that the damaged components cannot be replaced individually in the above solution.

[0006] To achieve the above purpose, the utility model provides the following technical solution:

[0007] A combined motorcycle frame includes a main pipe, a riser pipe, a tail frame, and an engine bracket. The main pipe includes a straight pipe section and an arc pipe section. The right end of the straight pipe section is fixedly connected to the left end of the arc pipe section. A connection block is fixedly arranged on the side wall of the riser pipe. The connection block is detachably inserted into the left end of the straight pipe section, and the connection block and the straight pipe section are fixedly connected by bolts. The tail frame is detachably installed on the right side of the arc pipe section by bolts, and the engine bracket is detachably installed on the bottom of the arc pipe section by bolts.

[0008] Principle and effect of this technical solution:

[0009] During installation, insert the connection block into the left end of the straight pipe section, pass the bolt through the straight pipe section and the connection block, and sleeved a nut at one end of the bolt to fixedly arrange the riser pipe at the left end of the main pipe. Subsequently, install the tail frame on the right side of the arc pipe section by bolts, and finally install the engine bracket on the bottom of the arc pipe section by bolts.

[0010] With the above settings, the riser, the tail frame and the engine support are respectively detachably installed on the main pipe. When any of the above components is damaged, the damaged component can be separately disassembled by loosening the bolts connecting the main pipe and the corresponding component, which not only facilitates maintenance but also saves maintenance costs.

[0011] In the present utility model, two through first mounting holes for installing bolts are spaced apart on the front wall of the connecting block, and the straight pipe section is provided with through holes matching the first mounting holes in the transverse direction.

[0012] The principle and effect of this technical solution:

[0013] Insert the connecting block into the left end of the straight pipe section. When the side wall of the riser abuts against the left end of the straight pipe section, the first mounting holes of the connecting block are aligned with the corresponding through holes of the straight pipe section. With the above settings, it is convenient to pass the bolts through the connecting block and the straight pipe section, and then the connecting block and the straight pipe section are fixedly connected by bolts.

[0014] In the present utility model, a reinforcing plate is further included. A first convex block is fixedly arranged below the connecting block on the side wall of the riser, and a second convex block is fixedly arranged at the bottom of the left end of the straight pipe section. The reinforcing plate is respectively fixedly connected to the first convex block and the second convex block by bolts.

[0015] The principle and effect of this technical solution:

[0016] After the connecting block and the straight pipe section are fixedly connected by bolts, the reinforcing plate is respectively clamped on the first convex block and the second convex block. Then, the bolts are passed through the reinforcing plate and the first convex block, and then the bolts are passed through the reinforcing plate and the second convex block, so that the reinforcing plate is respectively fixedly connected to the first convex block and the second convex block.

[0017] With the above settings, the connection stiffness between the riser and the main pipe can be enhanced, and the overall stability of the device can be improved.

[0018] In the present utility model, a connecting shaft is fixedly arranged at the top of the right side wall of the arc-shaped pipe section. The front and rear sides of the arc-shaped pipe section are respectively connected by bolts with mounting plates protruding from the right side of the arc-shaped pipe section. The tail frame includes a mounting frame and a support frame. The left end of the mounting frame is rotatably connected to the connecting shaft by bolts, the top of the support frame is connected to the mounting frame by bolts, and the bottom of the support frame is connected to the mounting plate by bolts.

[0019] In the present utility model, two first lining pipes are fixedly arranged at intervals inside the arc-shaped pipe section. The first lining pipes are provided with through second mounting holes for installing bolts along their axes, and through holes matching the two second mounting holes are arranged on the left side of the front wall of the mounting plate.

[0020] In the present utility model, the bottom of the support frame has a cross bar, and the cross bar is provided with a through third mounting hole along its axis for mounting bolts. A plurality of through holes cooperating with the third mounting hole are spaced apart on the right side of the front wall of the mounting plate.

[0021] Principle and effect of this technical solution:

[0022] Align the through holes on the left sides of the two mounting plates with the corresponding second mounting holes on the front and rear sides of the arc-shaped pipe section respectively, then pass bolts through the through holes on the left sides of the two mounting plates and the corresponding second mounting holes, and sleeved nuts on one end of the bolts to fix the two mounting plates on the front and rear sides of the arc-shaped pipe section. Subsequently, connect the top of the support frame and the mounting frame with bolts, and rotatably connect the left end of the mounting frame and the connecting shaft with bolts. Then rotate the tail frame. According to the usage requirements, align the third mounting hole on the cross bar with one group of through holes on the mounting plate, and then pass bolts through the through holes on the right sides of the two mounting plates and the corresponding third mounting hole, and sleeved nuts on one end of the bolts to complete the fixation of the tail frame.

[0023] Through the above settings, by rotatably connecting the left end of the mounting frame and the connecting shaft, and providing a plurality of through holes cooperating with the third mounting hole on the mounting plate, it is convenient for installers to adjust the angle between the tail frame and the arc-shaped pipe section according to needs, improving the practicability of the present utility model.

[0024] In the present utility model, the engine support includes two support plates symmetrically arranged on the front and rear sides of the arc-shaped pipe section. A second lining pipe is also fixedly arranged in the arc-shaped pipe section. The second lining pipe is provided with a through fourth mounting hole along its axis for mounting bolts. Square grooves are recessed at both ends of the fourth mounting hole. A limiting block cooperating with the groove is fixedly arranged on the side of the support plate close to the arc-shaped pipe section. A through hole communicating with the end wall of the limiting block and cooperating with the fourth mounting hole is provided on the side of the support plate far from the arc-shaped pipe section.

[0025] Principle and effect of this technical solution:

[0026] Adjust the support plate to be horizontal, then snap the limiting block into the corresponding groove. At this time, the through hole on the support plate is aligned with the fourth mounting hole. Pass bolts through the through holes on the two support plates and the fourth mounting hole, and sleeved nuts on one end of the bolts to fixedly arrange the two support plates on the front and rear sides of the arc-shaped pipe section.

[0027] Through the above settings, after fixedly arranging the support plate on the arc-shaped pipe section, it can prevent the support plate from rotating relative to the arc-shaped pipe section, thereby ensuring the stability of the engine and improving the practicability of the present utility model. Description of the Drawings

[0028] Figure 1 Isometric view of the overall structure of the present utility model;

[0029] Figure 2 is the axonometric sectional view of the present utility model;

[0030] Figure 3 is the disassembly of the components of the present utility model Figure 1 ;

[0031] Figure 4 is the disassembly of the components of the present utility model Figure 2 . Specific embodiments

[0032] The present utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments:

[0033] The reference numerals in the accompanying drawings of the specification include: 10, main pipe; 11, straight pipe section; 111, second convex block; 12, arc pipe section; 13, connecting shaft; 14, first liner; 141, second mounting hole; 15, second liner; 151, fourth mounting hole; 152, card slot; 20, riser; 21, connecting block; 211, first mounting hole; 22, first convex block; 30, tail frame; 31, mounting frame; 32, support frame; 321, cross bar; 322, third mounting hole; 40, engine bracket; 41, support plate; 411, limiting block; 50, reinforcing plate; 60, mounting plate.

[0034] As shown in the Figures 1-4 accompanying drawings, the present utility model discloses a combined motorcycle frame, including a main pipe 10, a riser 20, a tail frame 30 and an engine bracket 40. The main pipe 10 includes a straight pipe section 11 and an arc pipe section 12. The right end of the straight pipe section 11 is fixedly connected to the left end of the arc pipe section 12. A connecting block 21 is fixedly arranged on the side wall of the riser 20. The connecting block 21 is detachably inserted into the left end of the straight pipe section 11, and the connecting block 21 and the straight pipe section 11 are fixedly connected by bolts. The tail frame 30 is detachably mounted on the right side of the arc pipe section 12 by bolts, and the engine bracket 40 is detachably mounted on the bottom of the arc pipe section 12 by bolts.

[0035] In this embodiment, two through first mounting holes 211 for installing bolts are spaced apart on the front wall of the connecting block 21, and the straight pipe section 11 is provided with through holes matching the first mounting holes 211 in the transverse direction.

[0036] In this embodiment, a reinforcing plate 50 is further included. A first convex block 22 is fixedly arranged on the side wall of the riser 20 below the connecting block 21, and a second convex block 111 is fixedly arranged at the bottom of the left end of the straight pipe section 11. The reinforcing plate 50 is fixedly connected to the first convex block 22 and the second convex block 111 by bolts respectively.

[0037] In this embodiment, a connecting shaft 13 is fixedly arranged at the top of the right side wall of the arc-shaped pipe section 12. Mounting plates 60 protruding from the right side of the arc-shaped pipe section 12 are respectively connected to the front and rear sides of the arc-shaped pipe section 12 by bolts. The tail frame 30 includes a mounting frame 31 and a support frame 32. The left end of the mounting frame 31 is rotatably connected to the connecting shaft 13 by bolts. The top of the support frame 32 is connected to the mounting frame 31 by bolts. The bottom of the support frame 32 is connected to the mounting plate 60 by bolts.

[0038] In this embodiment, two first lining pipes 14 are fixedly arranged at intervals inside the arc-shaped pipe section 12. A through second mounting hole 141 for installing bolts is arranged along the axis of the first lining pipe 14. A through hole matching the two second mounting holes 141 is formed in the left side of the front wall of the mounting plate 60.

[0039] In this embodiment, the bottom of the support frame 32 has a cross bar 321. A through third mounting hole 322 for installing bolts is arranged along the axis of the cross bar 321. A plurality of through holes matching the third mounting hole 322 are formed at intervals in the right side of the front wall of the mounting plate 60.

[0040] In this embodiment, the engine support 40 includes two support plates 41 symmetrically arranged on the front and rear sides of the arc-shaped pipe section 12. A second lining pipe 15 is also fixedly arranged inside the arc-shaped pipe section 12. A through fourth mounting hole 151 for installing bolts is arranged along the axis of the second lining pipe 15. Square card slots 152 are recessed at both ends of the fourth mounting hole 151. A limiting block 411 matching the card slot 152 is fixedly arranged on the side of the support plate 41 close to the arc-shaped pipe section 12. A through hole penetrating to the end wall of the limiting block 411 and matching the fourth mounting hole 151 is formed in the side of the support plate 41 far from the arc-shaped pipe section 12.

[0041] The specific implementation process is as follows:

[0042] During installation, the connecting block 21 is inserted into the left end of the straight pipe section 11, and bolts are passed through the straight pipe section 11 and the connecting block 21, and nuts are sleeved on one end of the bolts to fixedly arrange the vertical pipe 20 at the left end of the main pipe 10. Subsequently, the tail frame 30 is installed on the right side of the arc-shaped pipe section 12 by bolts, and finally the engine support 40 is installed on the bottom of the arc-shaped pipe section 12 by bolts.

[0043] Insert the connecting block 21 into the left end of the straight pipe section 11. When the side wall of the vertical pipe 20 abuts against the left end of the straight pipe section 11, the first mounting hole 211 of the connecting block 21 is aligned with the corresponding through hole of the straight pipe section 11.

[0044] After fixedly connecting the connecting block 21 and the straight pipe section 11 by bolts, the reinforcing plates 50 are respectively clamped on the first convex block 22 and the second convex block 111. Then, bolts are passed through the reinforcing plates 50 and the first convex block 22, and then the bolts are passed through the reinforcing plates 50 and the second convex block 111, so that the reinforcing plates 50 are respectively fixedly connected to the first convex block 22 and the second convex block 111.

[0045] Align the through holes on the left sides of the two mounting plates 60 with the corresponding second mounting holes 141 on the front and rear sides of the arc-shaped pipe section 12 respectively. Then, pass bolts through the through holes on the left sides of the two mounting plates 60 and the corresponding second mounting holes 141, and sleeved nuts on one ends of the bolts to fix the two mounting plates 60 on the front and rear sides of the arc-shaped pipe section 12. Then, connect the top of the support frame 32 and the mounting frame 31 by bolts, and rotatably connect the left end of the mounting frame 31 and the connecting shaft 13 by bolts. Then, rotate the tail frame 30. According to the use requirements, align the third mounting hole 322 on the cross bar 321 with one group of through holes on the mounting plate 60. Then, pass bolts through the through holes on the right sides of the two mounting plates 60 and the corresponding third mounting hole 322, and sleeved nuts on one ends of the bolts to complete the fixation of the tail frame 30.

[0046] Adjust the support plate 41 to be horizontal. Then, clamp the limit block 411 in the corresponding card slot 152. At this time, the through hole on the support plate 41 is aligned with the fourth mounting hole 151. Pass bolts through the through holes on the two support plates 41 and the fourth mounting hole 151, and sleeved nuts on one ends of the bolts to fixedly arrange the two support plates 41 on the front and rear sides of the arc-shaped pipe section 12.

[0047] The above are only the embodiments of the present invention. Specific technical solutions or common knowledge such as characteristics that are well known in the solution are not described in detail here. It should be noted that for those skilled in the art, without departing from the technical solution of the present invention, several deformations and improvements can still be made, and these should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicability of the patent. The protection scope required by this application should be subject to the content of its claims, and the specific implementation manners described in the specification can be used to interpret the content of the claims.

Claims

1. A modular motorcycle frame, characterized in that: include: A main pipe, the main pipe comprising a straight pipe section and an arc-shaped pipe section, the right end of the straight pipe section being fixedly connected to the left end of the arc-shaped pipe section; A vertical pipe, wherein a connecting block is fixedly arranged on the side wall of the vertical pipe, the connecting block is detachably inserted into the left end of the straight pipe section, and the connecting block is fixedly connected to the straight pipe section by bolts; A tail frame, which is detachably mounted on the right side of the arc-shaped pipe section by bolts; The engine bracket is detachably mounted on the bottom of the arc-shaped pipe section by bolts.

2. The combined motorcycle frame according to claim 1, characterized in that: The front wall of the connection block is provided with two through first mounting holes for mounting bolts, and the straight pipe section is provided with through holes matching with the first mounting holes in the transverse direction.

3. The combined motorcycle frame according to claim 2, characterized in that: It also includes a reinforcement plate. The side wall of the vertical pipe is fixedly provided with a first protrusion below the connecting block. The bottom of the left end of the straight pipe section is fixedly provided with a second protrusion. The reinforcement plate is fixedly connected to the first protrusion and the second protrusion by bolts respectively.

4. The combined motorcycle frame according to claim 1, characterized in that: A connecting shaft is fixedly arranged on the top of the right side wall of the arc-shaped pipe segment, and the front and rear sides of the arc-shaped pipe segment are respectively connected with mounting plates protruding from the right side of the arc-shaped pipe segment by bolts. The tail frame includes a mounting frame and a supporting frame, and the left end of the mounting frame is rotatably connected to the connecting shaft by bolts, the top of the supporting frame is connected to the mounting frame by bolts, and the bottom of the supporting frame is connected to the mounting plate by bolts.

5. The combined motorcycle frame according to claim 4, characterized in that: Two first liner tubes are fixedly arranged at intervals in the arc-shaped pipe section, and the first liner tube is provided with a through second mounting hole for mounting bolts along its axis, and a through hole matching with the two second mounting holes is opened on the left side of the front wall of the mounting plate.

6. The combined motorcycle frame according to claim 5, characterized in that: The support frame has a cross bar at the bottom, and a third mounting hole for mounting bolts is arranged along the axis of the cross bar. A plurality of through holes matching the third mounting hole are arranged at intervals on the right side of the front wall of the mounting plate.

7. The assembled motorcycle frame according to claim 1, characterized in that: The engine bracket includes two support plates symmetrically arranged on the front and rear sides of the arc-shaped pipe section. A second liner is also fixedly arranged in the arc-shaped pipe section. The second liner is provided with a fourth mounting hole along its axis for mounting bolts. Square card slots are also recessed at both ends of the fourth mounting hole. A limit block cooperating with the card slot is fixedly arranged on the side of the support plate close to the arc-shaped pipe section, and a through hole penetrating to the end wall of the limit block and cooperating with the fourth mounting hole is opened on the side of the support plate away from the arc-shaped pipe section.

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