Middle damping structure of motorcycle

Abstract

The utility model belongs to the technical field of vehicles, and relates to a middle shock absorption structure of a motorcycle, which comprises a frame and a rear fork, the rear fork is connected below the frame, the frame comprises a main beam tube, a left side tube and a right side tube, horizontal sections of the left side tube and the right side tube are connected with a front cross beam and a rear cross beam, and the front cross beam and the rear cross beam are connected through a connecting rod. The damping structure comprises a damper, a front connecting rod and a rear connecting rod, the rear end of the damper is hinged to the rear cross beam, the front end of the damper is hinged to the upper end of the front connecting rod, the rear end of the rear connecting rod is hinged to the rear bottom fork, the front end of the rear connecting rod is hinged to the middle of the front connecting rod, the lower end of the front connecting rod is hinged to the front cross beam, and the damper and the rear connecting rod are distributed up and down. The middle damping structure of the motorcycle has the advantages of being good in damping effect and small in occupied space.

Description

Technical Field

[0001] The utility model belongs to the technical field of transportation tools and relates to a central shock-absorbing structure of a motorcycle. Background Art

[0002] The design of the vehicle's shock absorption system plays an important role in maintaining the vehicle's good dynamic performance and improving the user's comfort. Especially for two-wheeled motorcycles, people ride directly on the vehicle, and the demand for shock absorption is more sensitive. Existing motorcycles generally have a pair of rear shock absorption mechanisms on the rear side of the motorcycle, but the shock absorption effect is not ideal and it takes up a lot of space.

[0003] Chinese utility model CN214296293U discloses a frame assembly and a two-wheeled vehicle, wherein the frame assembly includes a frame body, a rear swing arm and a shock absorber, wherein the frame body includes a left main beam, a right main beam and a rear swing arm connecting component, wherein a predetermined spacing is provided between the left main beam and the right main beam, wherein the rear swing arm connecting component is arranged between the left main beam and the right main beam, and wherein the rear swing arm connecting component is arranged below the left main beam and the right main beam; wherein the rear swing arm has a frame connecting structure, wherein the frame connecting structure is rotatably connected to the frame body via the rear swing arm connecting component, and wherein the rear end of the rear swing arm has a rear wheel connecting structure; wherein one end of the shock absorber is connected to the frame body, and the other end is connected to the rear swing arm.

[0004] The above-mentioned two-wheeled vehicle enhances its shock absorption performance by setting a center shock absorber, but the center shock absorber is directly connected to the frame body and the rear swing arm, and its shock absorption effect is very limited, and it still needs to be used in conjunction with the rear shock absorber. Utility Model Content

[0005] The utility model aims at the deficiencies of the prior art and provides a centrally mounted shock absorbing structure for a motorcycle, which has the advantages of good shock absorbing effect and small occupied space.

[0006] In order to solve the above technical problems, the purpose of the utility model is achieved through the following technical solutions:

[0007] A central shock-absorbing structure of a motorcycle comprises a frame and a rear fork, wherein the rear fork is connected to the bottom of the frame, the frame comprises a main beam tube, a left tube and a right tube, the horizontal sections of the left tube and the right tube are connected to a front cross beam and a rear cross beam, the shock-absorbing structure comprises a shock absorber, a front connecting rod and a rear connecting rod, the rear end of the shock absorber is hinged to the rear cross beam, and the front end is hinged to the upper end of the front connecting rod, the rear end of the rear connecting rod is hinged to the rear fork, and the front end is hinged to the middle part of the front connecting rod, the lower end of the front connecting rod is hinged to the front cross beam, and the shock absorber and the rear connecting rod are distributed up and down.

[0008] In the above-mentioned central shock-absorbing structure of a motorcycle, a front connecting rod mounting seat extending rearward and downward is arranged on the front cross beam, a front connecting rod connecting pipe is arranged at the lower end of the front connecting rod, and the front connecting rod connecting pipe is hinged to the front connecting rod mounting seat.

[0009] In the above-mentioned central shock-absorbing structure of a motorcycle, the front cross beam is in a downwardly curved arc structure, the front cross beam is integrally connected to the main beam tube, and the front connecting rod mounting seat extends forward and upward and is integrally connected to the main beam tube.

[0010] In the above-mentioned central shock-absorbing structure of a motorcycle, a shock absorber mounting seat is arranged on the front side of the rear cross beam, and the shock absorber is hinged to the shock absorber mounting seat.

[0011] In the above-mentioned mid-mounted shock-absorbing structure of a motorcycle, a rear link mounting seat is provided at the bottom of the front end of the rear flat fork, a rear link connecting pipe is provided at the rear end of the rear link, and the rear link connecting pipe is hinged to the rear link mounting seat.

[0012] In the above-mentioned mid-mounted shock-absorbing structure of a motorcycle, a shock absorber connecting fork is provided at the front end of the shock absorber, and a rear connecting rod connecting fork is provided at the front end of the rear connecting rod. The shock absorber connecting fork and the rear connecting rod connecting fork are respectively matched with the front connecting rod and hinged therewith.

[0013] In the above-mentioned central shock-absorbing structure of a motorcycle, each hinge structure can be composed of a hinge shaft, a bearing, a bushing, etc.

[0014] In the above-mentioned mid-mounted shock-absorbing structure of a motorcycle, the front connecting rod connecting pipe is located on the inner side of the front connecting rod mounting seat, the front connecting rod is located on the inner side of the shock absorber connecting fork and the rear connecting rod connecting fork, the shock absorber connecting end is located on the inner side of the shock absorber mounting seat, and the rear connecting rod connecting pipe is located on the rear side of the rear connecting rod mounting seat.

[0015] In the above-mentioned mid-mounted shock-absorbing structure of a motorcycle, the axis of the shock absorber is arranged parallel to the left tube and the right tube, the rear connecting rod is arranged downwardly inclined from front to rear, and the front connecting rod is arranged backwardly inclined from top to bottom. Furthermore, the hinge points of the shock absorber connecting fork, the rear connecting rod connecting fork and the front connecting rod are located in front of the hinge points of the front connecting rod connecting tube and the front connecting rod mounting seat.

[0016] In the above-mentioned central shock-absorbing structure of a motorcycle, a left guard beam and a right guard beam are arranged on the left and right sides of the shock absorber, and the front and rear ends of the left and right guard beams are respectively connected to the front cross beam and the rear cross beam, and the left and right guard beams are inclined inward from back to front.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] The utility model provides a mid-mounted shock-absorbing structure for a motorcycle, which adopts a combination of a shock absorber, a front connecting rod and a rear connecting rod, so that the front end of the shock absorber forms a limited movable end, which greatly increases the shock-absorbing amplitude of the shock absorber, thereby enhancing the shock-absorbing effect. After using the shock-absorbing structure provided by the utility model, it is no longer necessary to set a rear shock-absorbing mechanism. Therefore, the utility model has the advantages of good shock-absorbing effect and small space occupation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional diagram of the utility model;

[0020] Figure 2 It is the front view of the utility model;

[0021] Figure 3 It is a top view of the utility model;

[0022] Figure 4 It is a three-dimensional diagram of the shock absorbing structure of the utility model;

[0023] Figure numerals: 1. frame; 2. rear fork; 3. main beam tube; 4. left tube; 5. right tube; 6. front cross beam; 7. rear cross beam; 8. shock absorber; 9. front link; 10. rear link; 11. front link mounting seat; 12. front link connecting tube; 13. shock absorber mounting seat; 14. rear link mounting seat; 15. rear link connecting tube; 16. shock absorber connecting fork; 17. rear link connecting fork; 18. left guard beam; 19. right guard beam. DETAILED DESCRIPTION

[0024] The present invention will be further described below with reference to the accompanying drawings. Figure 1-4 :

[0025] A central shock-absorbing structure of a motorcycle comprises a frame 1 and a rear fork 2, wherein the rear fork 2 is connected to the bottom of the frame 1, the frame 1 comprises a main beam tube 3, a left tube 4 and a right tube 5, the horizontal sections of the left tube 4 and the right tube 5 are connected to a front cross beam 6 and a rear cross beam 7, the shock-absorbing structure comprises a shock absorber 8, a front connecting rod 9 and a rear connecting rod 10, the rear end of the shock absorber 8 is hinged to the rear cross beam 7, and the front end is hinged to the upper end of the front connecting rod 9, the rear end of the rear connecting rod 10 is hinged to the rear fork 2, and the front end is hinged to the middle part of the front connecting rod 9, the lower end of the front connecting rod 9 is hinged to the front cross beam 6, and the shock absorber 8 and the rear connecting rod 10 are distributed up and down.

[0026] The shock absorption principle of this embodiment is: when riding, when the motorcycle vibrates, the frame 1 produces a downward displacement, and the rear fork 2 rotates around its axis, and drives the rear connecting rod 10 to produce a backward displacement, and the rear connecting rod 10 pulls the front connecting rod 9 to rotate around the hinge point at its lower end, and the upper end of the front connecting rod 9 moves backward and compresses the shock absorber 8 to produce a shock absorption effect. Of course, when the vibration direction is opposite, the shock absorption effect can also be provided by stretching the shock absorber 8.

[0027] In this embodiment, the installation structure of the front link 9 is: a front link mounting seat 11 extending rearward and downward is provided on the front cross beam 6, and a front link connecting tube 12 is provided at the lower end of the front link 9, and the front link connecting tube 12 is hinged to the front link mounting seat 11.

[0028] Furthermore, in order to improve the installation strength of the front connecting rod 9, the front cross beam 6 is formed into a downwardly curved arc structure, the front cross beam 6 is connected to the main beam tube 3 as a whole, and the front connecting rod mounting seat 11 extends forward and upward and is connected to the main beam tube 3 as a whole.

[0029] The installation structure of the shock absorber 8 in this embodiment is as follows: a shock absorber mounting seat 13 is provided on the front side of the rear cross beam 7 , and the shock absorber 8 is hinged to the shock absorber mounting seat 13 .

[0030] The installation structure of the rear link 10 in this embodiment is as follows: a rear link mounting seat 14 is provided at the bottom of the front end of the rear flat fork 2, and a rear link connecting tube 15 is provided at the rear end of the rear link 10, and the rear link connecting tube 15 is hinged to the rear link mounting seat 14.

[0031] In this embodiment, the installation structure of the shock absorber 8, the rear connecting rod 10 and the front connecting rod 9 is as follows: a shock absorber connecting fork 16 is provided at the front end of the shock absorber 8, and a rear connecting rod connecting fork 17 is provided at the front end of the rear connecting rod 10. The shock absorber connecting fork 16 and the rear connecting rod connecting fork 17 are respectively matched with the front connecting rod 9 and hinged therewith.

[0032] In this embodiment, each hinge structure can be composed of a hinge shaft, a bearing, a sleeve, etc.

[0033] In this embodiment, the assembly relationships are as follows: the front link connecting tube 12 is located on the inner side of the front link mounting seat 11, the front link 9 is located on the inner side of the shock absorber connecting fork 16 and the rear link connecting fork 17, the connecting end of the shock absorber 8 is located on the inner side of the shock absorber mounting seat 13, and the rear link connecting tube 15 is located on the rear side of the rear link mounting seat 14.

[0034] In order to obtain a better shock absorption effect, the axis of the shock absorber 8 is arranged parallel to the left tube 4 and the right tube 5, the rear connecting rod 10 is arranged to be tilted downward from front to back, and the front connecting rod 9 is arranged to be tilted backward from top to bottom. Furthermore, the hinge points of the shock absorber connecting fork 16, the rear connecting rod connecting fork 17 and the front connecting rod 9 are located in front of the hinge points of the front connecting rod connecting tube 12 and the front connecting rod mounting seat 11. Through the above arrangement, the rear connecting rod 10 can better pull the front connecting rod 9 to move backward and make the shock absorber 8 produce a larger amplitude.

[0035] In order to protect the shock-absorbing structure, a left guard beam 18 and a right guard beam 19 are arranged on the left and right sides of the shock absorber 8. The front and rear ends of the left guard beam 18 and the right guard beam 19 are respectively connected to the front cross beam 6 and the rear cross beam 7. The left guard beam 18 and the right guard beam 19 are inclined inward from back to front.

[0036] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A mid-mounted shock-absorbing structure for a motorcycle, comprising a frame (1) and a rear fork (2), wherein the rear fork (2) is connected to the lower portion of the frame (1), wherein the frame (1) comprises a main beam tube (3), a left tube (4) and a right tube (5), wherein the horizontal sections of the left tube (4) and the right tube (5) are connected to a front cross beam (6) and a rear cross beam (7), wherein: The shock absorbing structure comprises a shock absorber (8), a front connecting rod (9) and a rear connecting rod (10); the rear end of the shock absorber (8) is hinged to the rear cross beam (7), and the front end is hinged to the upper end of the front connecting rod (9); the rear end of the rear connecting rod (10) is hinged to the rear fork (2), and the front end is hinged to the middle part of the front connecting rod (9); the lower end of the front connecting rod (9) is hinged to the front cross beam (6); and the shock absorber (8) and the rear connecting rod (10) are distributed up and down.

2. A motorcycle center shock absorbing structure according to claim 1, characterized in that: The front cross beam (6) is provided with a front link mounting seat (11) extending rearward and downward, and the lower end of the front link (9) is provided with a front link connecting pipe (12), and the front link connecting pipe (12) is hinged to the front link mounting seat (11).

3. A motorcycle center shock absorbing structure according to claim 2, characterized in that: The front cross beam (6) is in the form of an arc-shaped structure that bends downwards. The front cross beam (6) is connected to the main beam tube (3) as a whole. The front connecting rod mounting seat (11) extends forward and upward and is connected to the main beam tube (3) as a whole.

4. The central shock absorbing structure of a motorcycle according to claim 1, characterized in that: A shock absorber mounting seat (13) is arranged on the front side of the rear cross beam (7), and the shock absorber (8) is hinged to the shock absorber mounting seat (13).

5. The central shock absorbing structure of a motorcycle according to claim 1, characterized in that: A rear link mounting seat (14) is provided at the bottom of the front end of the rear flat fork (2), a rear link connecting pipe (15) is provided at the rear end of the rear link (10), and the rear link connecting pipe (15) is hinged to the rear link mounting seat (14).

6. A motorcycle center shock absorbing structure according to claim 1, characterized in that: The front end of the shock absorber (8) is provided with a shock absorber connecting fork (16), and the front end of the rear connecting rod (10) is provided with a rear connecting rod connecting fork (17). The shock absorber connecting fork (16) and the rear connecting rod connecting fork (17) are respectively matched with the front connecting rod (9) and are hinged therewith.

7. The central shock absorbing structure of a motorcycle according to claim 1, characterized in that: The axis of the shock absorber (8) is arranged parallel to the left tube (4) and the right tube (5); the rear connecting rod (10) is arranged to tilt downward from front to back; and the front connecting rod (9) is arranged to tilt backward from top to bottom.

8. The central shock absorbing structure of a motorcycle according to claim 1, characterized in that: A left guard beam (18) and a right guard beam (19) are arranged on the left and right sides of the shock absorber (8); the front and rear ends of the left guard beam (18) and the right guard beam (19) are respectively connected to the front cross beam (6) and the rear cross beam (7); and the left guard beam (18) and the right guard beam (19) are inclined inward from the back to the front.

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