CN214776360U

CN214776360U - Improved rear bottom fork of motorcycle

Info

Publication number: CN214776360U
Application number: CN202121477250.6U
Authority: CN
Inventors: 卢照星
Original assignee: Foshan Jinshengchi Hardware Products Co ltd
Current assignee: Foshan Jinshengchi Hardware Products Co ltd
Priority date: 2021-06-30
Filing date: 2021-06-30
Publication date: 2021-11-19
Anticipated expiration: 2031-06-30

Abstract

The utility model relates to an improved generation motorcycle back chain stay, including the chain stay arm that two symmetries set up and the connecting plate of connecting two chain stays, the relative side of two chain stays is fixed connection respectively on the relative both sides of connecting plate, connecting plate top fixedly connected with shock attenuation mount pad, the transversal triangle-shaped of personally submitting of shock attenuation mount pad. This application has through setting up the shock attenuation mount pad in the connecting plate top and with the transversal triangle-shaped setting of personally submitting of shock attenuation mount pad, enable the shock attenuation mount pad more have stability, make the shock attenuation mount pad be difficult for taking place deformation or fracture under the impact force of bumper shock absorber, simultaneously with shock attenuation mount pad fixed connection on being tetragonal mount pad, the impact force that makes the mount pad receive can be in the mount pad dispersion everywhere, makes the difficult emergence of back chain stay deformation or cracked effect.

Description

Improved rear bottom fork of motorcycle

Technical Field

The application relates to the technical field of motorcycles, in particular to an improved rear bottom fork of a motorcycle.

Background

The motorcycle rear bottom fork is an important component of a motorcycle vehicle, is used for connecting a frame and an important component of a rear wheel, and plays a supporting role in a motorcycle shock absorber.

The rear bottom fork mainly comprises two flat fork arms and a connecting rod for connecting the two flat fork arms, and the rear shock absorber of the motorcycle is generally directly arranged on the two flat fork arms or the connecting rod through bolts.

In view of the above-mentioned related art, the inventor believes that there is a problem that when a motorcycle runs on a bumpy road surface, the impact force generated by the motorcycle is greater than the maximum bearing force of the rear fork, which easily causes the rear fork to be easily deformed or broken.

SUMMERY OF THE UTILITY MODEL

In order to strengthen the intensity of motorcycle back chain stay, this application provides an improved generation motorcycle back chain stay.

The application provides an improved generation motorcycle back chain stay adopts following technical scheme: the improved motorcycle rear bottom fork comprises two symmetrically arranged bottom fork arms and a connecting plate for connecting the two bottom fork arms, wherein the opposite side surfaces of the two bottom fork arms are fixedly connected to the opposite sides of the connecting plate respectively, a damping mounting seat is fixedly connected above the connecting plate, and the cross section of the damping mounting seat is triangular.

Through adopting above-mentioned technical scheme, through setting up the shock attenuation mount pad in the connecting plate top and personally submitting the transversal triangle-shaped setting of shock attenuation mount pad, enable shock attenuation mount pad more have stability, make the shock attenuation mount pad be difficult for taking place deformation or fracture under the impact force of bumper shock absorber, simultaneously with shock attenuation mount pad fixed connection on being tetragonal connecting plate, the impact force that makes the shock attenuation mount pad receive can be dispersed everywhere on the mount pad, make the difficult deformation or fracture of taking place of back chain stay.

Preferably, the shock absorption mounting seat comprises a supporting block with a triangular cross section, and one end of the supporting block, which is far away from the connecting plate, is fixedly connected with a shock absorption mounting cylinder.

Through adopting above-mentioned technical scheme, set up the supporting shoe through being the triangular block, set up the installation that the shock attenuation installation section of thick bamboo made things convenient for the bumper shock absorber, can strengthen the stability of supporting shoe greatly, increase back chain stay intensity, difficult emergence is out of shape or is split under the impact force of bumper shock absorber.

Preferably, one side of the connecting plate is fixedly connected with a middle shaft barrel, two ends of the middle shaft barrel extend outwards in the direction away from the connecting plate, and the two bottom fork arms extend towards the middle shaft barrel and are fixedly connected with the wall of the middle shaft barrel.

By adopting the technical scheme, the rear bottom fork is conveniently arranged on the motorcycle frame by the middle shaft cylinder.

Preferably, one side of the connecting plate, which is far away from the middle shaft cylinder, is fixedly connected with a triangular block, one side of the triangular block is fixedly connected with the side face of the flat fork arm, and the other side of the triangular block is fixedly connected with the side face of one end of the connecting plate, which is far away from the middle shaft cylinder.

Through above-mentioned technical scheme, through setting up two triangle blocks between two flat yoke arms and connecting plate, make two flat yoke arms and connecting plate be difficult to take place to warp under the effect of external force.

Preferably, the two flat fork arms are provided with axle mounting cylinders at ends far away from the middle axle cylinder, and the two axle mounting cylinders are provided with through holes.

By adopting the technical scheme, the wheel axle mounting cylinder is arranged and the through hole is formed in the mounting plate, so that the rear wheel axle of the motorcycle can be conveniently mounted, and the rear wheel of the motorcycle is mounted on the rear flat fork to form a basic frame of the motorcycle.

Preferably, at least two chain box limiting blocks are arranged on one of the flat fork arms, round holes are formed in the two chain box limiting blocks, and the circle centers of the two chain box limiting blocks are located on the same straight line.

By adopting the technical scheme, the chain box limiting block is arranged to conveniently mount the chain box on the rear flat fork for protecting the chain.

Preferably, a rear braking limiting block is arranged on the inner side wall of the other flat fork arm.

By adopting the technical scheme, the rear brake limiting block is arranged, so that the rear brake shaft is conveniently installed on the rear frame, and meanwhile, the rear brake device of the motorcycle is also conveniently installed.

Preferably, a dust baffle plate is arranged on one surface, far away from the supporting block, of the connecting plate.

By adopting the technical scheme, the dust blocking plate can reduce the possibility that mud dust rolled up along with the wheel enters the frame when the motorcycle moves.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the shock absorption mounting seat is set to be the triangular block and the middle shaft cylinder, so that the situation that the rear bottom fork of the motorcycle deforms or breaks under the impact force of the shock absorber on the motorcycle can be reduced.

2. The dust guard plate can reduce the dust rolled up along with the wheel when the motorcycle moves from entering the frame.

3. The triangular blocks can enhance the strength of the rear bottom fork.

Drawings

Fig. 1 is a schematic view of an improved rear bottom fork structure of a motorcycle.

Fig. 2 is a schematic view of a rear bottom fork structure of an improved motorcycle with different angles.

Description of reference numerals: 1. a left yoke arm; 2. a right yoke; 3. a shock-absorbing mounting seat; 31. a support block; 32. a shock absorbing mounting cylinder; 4. a connecting plate; 5. a triangular block; 6. a wheel axle mounting cylinder; 7. a through hole; 8. a chain case limiting block; 9. a rear brake limiting block; 10. a dust guard; 11. a middle shaft cylinder.

Detailed Description

The present application is described in further detail below with reference to figures 1-2.

The embodiment of the application discloses an improved generation motorcycle back chain stay. Referring to fig. 1, the device comprises two symmetrically arranged bottom fork arms and a connecting plate 4 for connecting the two bottom fork arms, wherein the two bottom fork arms are respectively a left bottom fork arm 1 and a right bottom fork arm 2, and a damping mounting seat 3 is fixedly connected to the connecting plate 4.

Referring to fig. 1, the shock mount 3 includes a support block 31 having a triangular cross section, and a shock mount cylinder 32 for mounting a shock absorber is fixedly connected to the support block 31. The triangular supporting block 31 is arranged to increase the strength of the rear bottom fork, so that the rear bottom fork is not easy to deform or break.

Referring to fig. 1, the connecting plate 4 is quadrilateral, the left fork arm 1 and the right fork arm 2 are respectively fixed on two opposite sides of the connecting plate 4, the length direction of the connecting plate 4 is consistent with the length directions of the left fork arm 1 and the right fork arm 2, the connecting plate 4 is fixedly connected with a center shaft cylinder 11 for mounting a center shaft of a motorcycle frame on one side adjacent to the left fork arm 1, two ends of the center shaft cylinder 11 extend outwards in the direction away from the connecting plate 4, and the left fork arm 1 and the right fork arm 2 extend towards the direction of the center shaft cylinder 4 and are fixedly connected with the side wall of the center shaft cylinder 4.

Referring to fig. 1, equal fixedly connected with triangle block 5 between the side that well beam barrel 11 is kept away from to connecting plate 4 on one side and two flat yoke relative, one side of one of them triangle block 5 and left flat yoke 1 fixed connection, another side and connecting plate 4 keep away from on one side fixed connection of well beam barrel 11, another triangle block 5 on one side and right flat yoke 2 fixed connection, another side and connecting plate 4 keep away from on one side fixed connection of well beam barrel 11, through setting up two triangle blocks 5 between two flat yokes and connecting plate 4, make two flat yokes and connecting plate 4 be difficult to take place to warp under the effect of external force, increase back flat fork intensity.

Referring to fig. 1, wheel axle mounting cylinders 6 are fixedly connected to the other ends of the left horizontal yoke 1 and the right horizontal yoke 2, through holes 7 are formed in the two wheel axle mounting cylinders 6, and a wheel axle of a rear wheel of the motorcycle is arranged between the two through holes 7 in a penetrating mode, so that the rear wheel of the motorcycle is connected with a frame of the motorcycle.

Referring to fig. 1 and 2, two chain box stoppers 8 of fixedly connected with are on the lateral wall that left side tie fork arm 1 is close to shock attenuation installation section of thick bamboo 32, the round hole has all been opened on two chain box stoppers 8, the centre of a circle of two round holes is at same height, two chain box stoppers 8 make things convenient for install motorcycle chain box on the tie fork, right side tie fork arm 2 and left tie fork arm 1 relative one side on fixedly connected with be used for installing rear brake axle's of motorcycle rear brake stopper 9, rear brake stopper 9 is the cuboid setting, rear brake stopper 9 cavity sets up, rear brake stopper 9 is close to through-hole 7 one end opening setting, rear brake stopper 9 goes up to open has a U type groove, make things convenient for the installation of rear brake axle of motorcycle.

Referring to fig. 1, one side of the connecting plate 4 opposite to the side provided with the shock absorption mounting seat 3 is fixedly connected with a dust guard plate 10, the dust guard plate 10 is located on one side of the connecting plate 4 far away from the middle shaft barrel 11, the dust guard plate 10 is bent into an arc shape towards the direction far away from the middle shaft barrel 11, and the dust guard plate 10 can reduce the dust rolled up along with the wheel when the motorcycle moves and enter the frame.

The embodiment principle of the improved motorcycle rear bottom fork in the embodiment is as follows:

referring to fig. 1 and 2, a left bottom fork arm 1 and a right bottom fork arm 2 are designed, and the two bottom fork arms are connected through a connecting plate 4 to form a base of a rear bottom fork, a middle shaft cylinder 11 and the left bottom fork arm 1, the right bottom fork arm 2 and the connecting plate 4 are arranged and fixedly connected, so that the rear bottom fork is conveniently connected with a motorcycle frame, a wheel shaft mounting cylinder 6 is arranged to facilitate mounting of a wheel shaft, a rear wheel of the motorcycle is also connected with the motorcycle frame through the rear bottom fork, a shock absorption mounting seat 3 is arranged and fixedly connected onto the connecting plate 4, so that a shock absorber is conveniently mounted, a supporting block 31 of the shock absorption mounting seat 3 is arranged to be a triangular block, the force generated by the movement of the motorcycle can be stably borne, the strength of the rear bottom fork is enhanced, and the rear bottom fork is not easy to deform or break. Set up chain box stopper 8 and can make things convenient for the chain box to install on the back flat fork on left flat fork, better protection chain, set up back braking stopper 9 on right flat yoke 2 and can restrict the removal of brake axle behind the motorcycle, can let back arresting gear's installation more convenient simultaneously, set up the dirt board and can reduce the mud dust that the motorcycle motion was curled up along with the wheel and enter into in the frame.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. An improved generation motorcycle back chain stay which characterized in that: including the chain stay arm that two symmetries set up and connecting plate (4) of connecting two chain stays, two the relative side of chain stay is fixed connection respectively on the relative both sides of connecting plate (4), connecting plate (4) top fixedly connected with shock mount pad (3), triangle-shaped is personally submitted in shock mount pad (3) is transversal.

2. An improved motorcycle rear fork as claimed in claim 1, wherein: the shock absorption mounting seat (3) comprises a supporting block (31) with a triangular cross section, and one end of the supporting block (31) far away from the connecting plate (4) is fixedly connected with a shock absorption mounting cylinder (32).

3. An improved motorcycle rear fork as claimed in claim 2, wherein: one side of the connecting plate (4) is fixedly connected with a middle shaft tube (11), two ends of the middle shaft tube (11) extend outwards in the direction away from the connecting plate (4), and the two flat fork arms are fixedly connected with the middle shaft tube (11).

4. An improved motorcycle rear fork as claimed in claim 3, wherein: keep away from in connecting plate (4) one side fixedly connected with triangle piece (5) of well beam barrel (11), triangle piece (5) one side with fork arm side fixed connection, triangle piece (5) another side with connecting plate (4) keep away from the side fixed connection of well beam barrel (11) one end.

5. An improved motorcycle rear fork as claimed in claim 4, wherein: and one ends of the two flat fork arms, which are far away from the middle shaft barrel (11), are respectively provided with a wheel shaft installation barrel (6), and the two wheel shaft installation barrels (6) are respectively provided with a through hole (7).

6. An improved motorcycle rear fork as claimed in claim 5, wherein: one of the flat fork arms is provided with at least two chain box limiting blocks (8), round holes are formed in the two chain box limiting blocks (8), and the circle centers of the two chain box limiting blocks (8) are located on the same straight line.

7. An improved motorcycle rear fork as claimed in claim 6, wherein: and a rear braking limiting block (9) is arranged on the inner side wall of the other flat fork arm.

8. An improved motorcycle rear fork as claimed in claim 7, wherein: and a dust blocking plate (10) is arranged on one surface of the connecting plate (4) far away from the supporting block (31).