Damping electric bicycle frame

Abstract

The utility model discloses a damping electric bicycle frame, which belongs to the technical field of bicycle frames and comprises a first support frame, a second support frame is rotatably connected to an inner cavity of the first support frame, a screw rod is rotatably connected to the top of an inner cavity of the second support frame, and the bottom of the screw rod penetrates through the second support frame. The outer side of the lead screw is fixedly sleeved with a worm gear and is in threaded connection with a moving plate in sequence from top to bottom, the rear side of an inner cavity of the second supporting frame is rotationally connected with a worm matched with the worm gear, inclined plates are fixedly installed on the left side and the right side of the bottom of the second supporting frame correspondingly, and damping rods are fixedly installed at the bottoms of the inclined plates on the left side and the right side correspondingly; the front side and the rear side of the left side of the second supporting frame are rotationally connected with a second arc-shaped plate and a first arc-shaped plate correspondingly. The elastic force of the damping spring can be adjusted, a rider can conveniently adjust the damping spring according to different environments, the driving feeling of the rider is improved, the worm can be protected, and the worm is prevented from being touched by mistake.

Description

Technical Field

[0001] The utility model relates to the technical field of bicycle frames, in particular to a shock-absorbing electric bicycle frame. Background Art

[0002] Electric bicycles are a common means of transportation. This type of vehicle has a relatively simple design and basic functions. It generally has basic riding functions and may be equipped with a simple lighting system and power display.

[0003] The existing electric bicycle frame has poor shock absorption effect and is not convenient for adjusting the elastic force of the shock-absorbing spring, which makes the rider feel a greater bumpiness during riding, affecting the rider's riding experience and reducing the practicality of the device. Therefore, we propose a shock-absorbing electric bicycle frame to solve this problem. Utility Model Content

[0004] The purpose of the present utility model is to provide a shock-absorbing electric bicycle frame to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] The cam is secured to the chassis and has a pivotal portion for securing the second support frame to the cam, and the cam is secured to the chassis on the chassis cam.

[0007] Preferably, the outer fixed sleeve of the damping rod is provided with a limit plate, the movable plate is movably sleeved on the outer side of the damping rod, the left and right sides of the bottom of the movable plate are fixedly connected with shock-absorbing springs, the bottom of the shock-absorbing spring is fixedly connected to the top of the limit plate, and the shock-absorbing spring is sleeved on the outer side of the damping rod.

[0008] Preferably, the rear thread of the positioning bolt passes through the front connecting block and the thread extends to the interior of the rear connecting block. Limiting rods are fixedly installed on the left and right sides of the bottom of the second support frame. The bottom of the limiting rod movably passes through the movable plate and is fixedly connected to the fixed plate. The bottom of the screw rod is fixedly connected to the bottom of the fixed plate.

[0009] Preferably, a support rod is fixedly installed on the bottom of the damping rod, and a connecting rod is fixedly connected to the corresponding side of the support rod on the left and right sides.

[0010] Preferably, the front side of the worm movably passes through the second support frame.

[0011] Preferably, the outer side of the limiting rod is in sliding contact with the inner side of the movable plate.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. In the utility model, the worm drives the worm wheel to rotate through the forward rotation of the worm, the worm wheel drives the lead screw to rotate, the lead screw drives the movable plate screwed together to move upward, and the movable plate drives the shock-absorbing spring to stretch, thereby adjusting the elastic force of the shock-absorbing spring, making it convenient for the rider to adjust the shock-absorbing spring according to different environments, thereby improving the rider's driving experience.

[0014] 2. In the present invention, the positioning bolt is rotated forward to move it away from the connecting block at the rear side, and then the second arc plate and the first arc plate are rotated toward the front and rear sides respectively and opened, thereby protecting the worm and preventing the worm from being accidentally touched. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of a shock-absorbing electric bicycle frame proposed by the present utility model;

[0016] Figure 2 This is a schematic cross-sectional view of a shock-absorbing electric bicycle frame proposed in the present invention;

[0017] Figure 3 for Figure 2 A partial enlarged view of part A;

[0018] Figure 4 for Figure 2 A partial enlarged view of part B.

[0019] In the figure: 1. First support frame; 2. Second support frame; 3. Screw; 4. Worm gear; 5. Worm; 6. First curved plate; 7. Second curved plate; 8. Connecting block; 9. Positioning bolt; 10. Moving plate; 11. Inclined plate; 12. Damping rod; 13. Support rod; 14. Connecting rod; 15. Shock-absorbing spring; 16. Limiting rod; 17. Fixed plate. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] Reference Figure 1-4 A shock-absorbing electric bicycle frame includes a first support frame 1, the inner cavity of the first support frame 1 is rotatably connected to the second support frame 2, the top of the inner cavity of the second support frame 2 is rotatably connected to a screw rod 3, the bottom of the screw rod 3 passes through the second support frame 2, and the outer side of the screw rod 3 is fixedly sleeved with a worm gear 4 and a movable plate 10 screwed thereon from top to bottom. The rear side of the inner cavity of the second support frame 2 is rotatably connected to a worm 5 that matches the worm gear 4. The left and right sides of the bottom of the second support frame 2 are fixedly installed with inclined plates 11, and the bottoms of the inclined plates 11 on both sides are fixedly installed with damping rods 12. The front and rear sides of the left side of the second support frame 2 are rotatably connected to the second curved plate 7 and the first curved plate 6 respectively. The right sides of the first curved plate 6 and the second curved plate 7 are fixedly installed with connecting blocks 8, and the top and bottom of the front connecting block 8 are provided with positioning bolts 9.

[0022] In this embodiment, a limit plate is provided on the outer side of the damping rod 12, and the movable plate 10 is movably sleeved on the outer side of the damping rod 12. The left and right sides of the bottom of the movable plate 10 are fixedly connected with shock-absorbing springs 15, and the bottom of the shock-absorbing spring 15 is fixedly connected to the top of the limit plate. The shock-absorbing spring 15 is sleeved on the outer side of the damping rod 12, and the rear side thread of the positioning bolt 9 passes through the front connecting block 8 and the thread extends to the inside of the rear connecting block 8. The left and right sides of the bottom of the second support frame 2 are fixedly installed with limit rods 16, and the bottom of the limit rod 16 movably passes through the movable plate 10 and is fixedly connected to the fixed plate 17. The bottom of the screw rod 3 is fixedly connected to the bottom of the fixed plate 17. The front and rear connecting blocks 8 can be fixed by the positioning bolt 9.

[0023] In this embodiment, a support rod 13 is fixedly installed at the bottom of the damping rod 12, and a connecting rod 14 is fixedly connected to the corresponding side of the support rod 13 on the left and right sides. The front side of the worm 5 moves through the second support frame 2, and the outer side of the limiting rod 16 is in sliding contact with the inside of the movable plate 10. The movable plate 10 can be limited by the limiting rod 16, thereby improving the stability of the up and down movement of the movable plate 10.

[0024] In this embodiment, when in use, by rotating the worm 5 forward, the worm 5 drives the worm wheel 4 to rotate, the worm wheel 4 drives the screw rod 3 to rotate, the screw rod 3 drives the screwed movable plate 10 to move upward, and the movable plate 10 drives the shock-absorbing spring 15 to stretch, and the elastic force of the shock-absorbing spring 15 can be adjusted, which is convenient for the rider to adjust the shock-absorbing spring 15 according to different environments, thereby improving the rider's driving experience. By rotating the positioning bolt 9 forward, the positioning bolt 9 is moved away from the rear connecting block 8, and then the second curved plate 7 and the first curved plate 6 are rotated to the front and rear sides respectively and opened, which can protect the worm 5 and prevent the worm 5 from being accidentally touched.

[0025] The above describes in detail the shock-absorbing electric bicycle frame provided by the present invention. Specific embodiments are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is intended only to facilitate understanding of the method and core concept of the present invention. It should be noted that those skilled in the art may, without departing from the principles of the present invention, make various improvements and modifications to the present invention, and such improvements and modifications fall within the scope of protection of the claims of the present invention.

Claims

1. A shock-absorbing electric bicycle frame, comprising a first support frame (1), characterized in that: The inner cavity of the first support frame (1) is rotatably connected to the second support frame (2), the top of the inner cavity of the second support frame (2) is rotatably connected to the screw rod (3), the bottom of the screw rod (3) passes through the second support frame (2), the outer side of the screw rod (3) is fixedly sleeved with a worm gear (4) and a movable plate (10) screwed thereon from top to bottom, the rear side of the inner cavity of the second support frame (2) is rotatably connected to a worm gear (5) adapted to the worm gear (4), the left and right sides of the bottom of the second support frame (2) are fixedly installed with inclined plates (11), the bottoms of the inclined plates (11) on the left and right sides are fixedly installed with damping rods (12), the front and rear sides of the left side of the second support frame (2) are rotatably connected to the second curved plate (7) and the first curved plate (6), the right sides of the first curved plate (6) and the second curved plate (7) are fixedly installed with connecting blocks (8), and the top and bottom of the connecting block (8) on the front side are provided with positioning bolts (9).

2. The shock-absorbing electric bicycle frame according to claim 1, characterized in that: The outer side of the damping rod (12) is fixedly sleeved with a limit plate, the movable plate (10) is movably sleeved on the outer side of the damping rod (12), and the left and right sides of the bottom of the movable plate (10) are fixedly connected with shock-absorbing springs (15), the bottom of the shock-absorbing spring (15) is fixedly connected to the top of the limit plate, and the shock-absorbing spring (15) is sleeved on the outer side of the damping rod (12).

3. The shock-absorbing electric bicycle frame according to claim 1, characterized in that: The rear thread of the positioning bolt (9) passes through the front connecting block (8) and extends to the interior of the rear connecting block (8). The left and right sides of the bottom of the second support frame (2) are fixedly installed with limiting rods (16). The bottom of the limiting rod (16) movably passes through the movable plate (10) and is fixedly connected to the fixed plate (17). The bottom of the screw rod (3) is fixedly connected to the bottom of the fixed plate (17).

4. The shock-absorbing electric bicycle frame according to claim 1, characterized in that: A support rod (13) is fixedly mounted on the bottom of the damping rod (12), and a connecting rod (14) is fixedly connected to the corresponding side of the support rod (13) on the left and right sides.

5. The shock-absorbing electric bicycle frame according to claim 1, characterized in that: The front side of the worm (5) movably passes through the second support frame (2).

6. The shock-absorbing electric bicycle frame according to claim 3, characterized in that: The outer side of the limiting rod (16) is in sliding contact with the inner side of the movable plate (10).

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