Damping frame and bicycle or electric bicycle

Abstract

The invention discloses a damping frame, which comprises a front bracket, a rear bracket, a rear bracket and a damping device, wherein the front bracket is used for mounting a front wheel and a steering assembly; the rear bracket is used for mounting a rear wheel, and the front bracket is rotationally connected with the rear bracket; a seat bracket and an elastic component are arranged between the front bracket and the rear bracket; wherein the elastic component is rotatably connected with the front bracket and the rear bracket respectively; one end of the seat support is hinged to the front support or the rear support, and the other end of the seat support is connected with the rear support or the front support through a limiting structure. The front support is rotationally connected with the rear support, the seat support is connected with the front support and the rear support in a hinged and limiting connection combined mode, the elastic assembly is installed between the front support and the rear support, and through the structure, impact of the ground on a vehicle and a human body is reduced, and the damping effect is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of bicycles and electric vehicles, and in particular relates to a shock-absorbing frame and a bicycle or an electric vehicle. Background Art

[0002] Bicycles, also known as bicycles or bikes, can be used as an environmentally friendly means of transportation for travel. The focus of the world's bicycle industry has also shifted from transportation tools to sports, mountain and leisure tools. In developed countries such as the United States, Europe, and other countries, bicycles are a common sports, fitness, and leisure entertainment product.

[0003] With the development of bicycles, higher requirements are placed on them, especially in terms of shock absorption. Some bicycles install the shock absorber under the seat, while others install it on the front wheel fork or the rear wheel fork, or both the front and rear wheel forks, which greatly increases the cost of the bicycle.

[0004] For example, application number CN202223110554.6 discloses a frame structure and a bicycle or electric vehicle, which adopts two elastic components, which are respectively arranged between the front frame and the seat bracket and between the rear frame and the seat bracket, and the production cost is relatively high. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a shock-absorbing frame and a bicycle or electric vehicle. The present invention optimizes and adjusts the structure of the frame, the connection method between the seat bracket and the front frame and the rear frame, and the elastic component, thereby improving the shock-absorbing performance of the frame and the comfort of the rider during riding.

[0006] Specifically, the present invention discloses a shock-absorbing frame, comprising:

[0007] Front bracket, used to install the front wheels and steering components;

[0008] A rear bracket, used for mounting the rear wheel, wherein the front bracket is rotatably connected to the rear bracket;

[0009] A seat bracket and an elastic component are provided between the front bracket and the rear bracket; wherein,

[0010] The elastic components are rotatably connected to the front bracket and the rear bracket respectively;

[0011] One end of the seat support is hinged to the front support or the rear support, and the other end is connected to the rear support or the front support via a limiting structure.

[0012] By adopting the above scheme, an elastic component is arranged between the front bracket and the rear bracket, and a seat bracket connected to the front bracket and the rear bracket is arranged above the elastic component. When the front wheel passes over an obstacle, the front bracket is lifted upward, the elastic component is compressed, and the part where the front bracket, the rear bracket and the seat bracket are connected restricts the movement of the seat bracket, so that the height of the seat bracket is reduced, thereby keeping the height of the human body unchanged. After passing over the obstacle, the elastic component is reset, and the seat bracket is reset at the same time; similarly, when the rear wheel passes over an obstacle, the rear bracket is lifted, and the front bracket and the rear bracket restrict the movement of the seat bracket, so that the height of the seat bracket is reduced, and the height of the human body remains unchanged.

[0013] Furthermore, the hole through which one end of the seat bracket is hinged to the front bracket or the hole through which one end of the seat bracket is hinged to the rear bracket is circular or waist-shaped and is provided at one end of the seat bracket.

[0014] By adopting the above solution, the shape of the hinge hole is set to a variety of structures, which facilitates the rotation or sliding of the pin in the hinge hole and also limits the movement of the seat bracket.

[0015] Furthermore, the front bracket includes a first connecting rod and L-shaped forward mounting plates fixed on both sides of the first connecting rod, the two forward mounting plates are rotatably connected to the rear bracket, and a first pin shaft for connecting the seat bracket is provided between the two forward mounting plates.

[0016] Furthermore, the rear bracket includes a second connecting rod and an inverted L-shaped reverse mounting plate fixed at one end of the second connecting rod, the two reverse mounting plates are rotatably connected to the front bracket, and a second pin shaft connected to the seat bracket is provided between the two reverse mounting plates.

[0017] By adopting the above solution, the forward mounting plate and the reverse mounting plate are arranged in an L shape to facilitate the installation of the elastic component. In addition, the elastic component is arranged between the forward mounting plate and the reverse mounting plate, and the shock absorbing effect will be better.

[0018] Furthermore, one end of the elastic component is rotatably connected to the first pin shaft, and the other end is rotatably connected to the second pin shaft.

[0019] Furthermore, the elastic component includes a bracket, a coil spring, and a damper. The bracket is installed at both ends of the damper, and the spring is sleeved on the outside of the damper and fixedly connected to both ends of the bracket.

[0020] By adopting the above scheme, the elastic component adopts a structure combining a coil spring and a damper, which has a better shock absorption effect. Other structures can also be adopted and selected according to road conditions.

[0021] Furthermore, the limiting structure is a waist-shaped through hole, which is arranged at one end of the seat bracket and is slidably connected to the first pin shaft or the second pin shaft.

[0022] By adopting the above solution, a waist-shaped through hole is adopted at the other end of the seat bracket, which limits the movement direction and movement range of the rear end of the seat bracket.

[0023] Furthermore, the limiting structure includes a limiting plate and a circular through hole, and the circular through hole is provided at one end of the seat support;

[0024] The limit plate is installed between the forward mounting plate and the seat bracket or between the reverse mounting plate and the seat bracket;

[0025] One end of the limiting plate is connected to the first pin shaft, and the other end is connected to the circular through hole of the seat bracket through the third pin shaft, and the other end of the seat bracket is hinged to the second pin shaft; or one end of the limiting plate is connected to the second pin shaft, and the other end is connected to the circular through hole of the seat bracket through the third pin shaft, and the other end of the seat bracket is hinged to the first pin shaft.

[0026] By adopting the above solution, the limiting plate and the circular through hole limit the movement direction of the seat bracket, and the seat bracket can obtain different movement directions and shock absorption effects, which is suitable for various road conditions. It only needs to replace the seat bracket, which has a simple structure and greater flexibility.

[0027] The present application also discloses a bicycle, comprising any of the above-mentioned shock-absorbing frames.

[0028] The present application also discloses an electric vehicle, comprising any of the above-mentioned shock-absorbing frames. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0030] Figure 1 It is a schematic diagram of the shock-absorbing frame;

[0031] Figure 2 It is an exploded view of the shock absorber frame;

[0032] Figure 3 is a schematic diagram of a shock-absorbing frame limiting structure including a limiting plate;

[0033] Figure 4 It is an exploded view of the limit structure of the shock-absorbing frame including the limit plate;

[0034] Figure 5 It is a structural schematic diagram of a hinged hole in a seat bracket that is waist-shaped and a limiting structure that is a waist-shaped through hole;

[0035] Figure 6 It is a structural schematic diagram in which the hinged hole in the seat bracket is waist-shaped and the limiting structure is a circular through hole;

[0036] Figure 7 It is a structural schematic diagram in which the hinged hole in the seat bracket is circular and the limiting structure is a waist-shaped through hole;

[0037] Figure 8 It is a schematic diagram of the rear bracket structure.

[0038] The numbers involved in the accompanying drawings are as follows: front bracket 1, first connecting rod 11, forward mounting plate 12, first pin 13, rear bracket 2, second connecting rod 21, reverse mounting plate 22, sleeve 221, second pin 23, limit plate 24, third pin 25, rear wheel 29, seat bracket 3, seat 31, hinged hole 32, steering assembly 4, handlebar 41, front fork 42, front wheel 43, elastic assembly 6. DETAILED DESCRIPTION

[0039] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0040] like Figure 1-2 As shown, the present invention discloses a shock-absorbing frame, comprising:

[0041] A front bracket 1, used for mounting a front wheel 43 and a steering assembly 4;

[0042] The rear bracket 2 is used to install the rear wheel 29. The front bracket 1 is rotatably connected to the rear bracket 2 via a connecting piece, and the connecting piece is a sleeve 221;

[0043] A seat support 3 and an elastic component 6 are provided between the front support 1 and the rear support 2;

[0044] The elastic component 6 is rotatably connected to the front bracket 1 and the rear bracket 2 respectively;

[0045] One end of the seat support 3 is hinged to the front support 1 or the rear support 2, and the other end is connected to the rear support 2 or the front support 1 through a limiting structure.

[0046] The front bracket 1 includes a first connecting rod 11 and L-shaped forward mounting plates 12 fixed on both sides of the first connecting rod 11. The two forward mounting plates 12 are rotatably connected to the rear bracket 2 through a sleeve 221, and a first pin shaft 13 for connecting the seat bracket 3 is provided between the two forward mounting plates 12.

[0047] The shape of the hole 32 for hingedly connecting the seat support 3 with the front support 1 or the rear support 2 is not only circular, but also waist-shaped or arc-shaped. The hole is located at one end of the seat support 3 .

[0048] The rear bracket 2 includes a second connecting rod 21, an inverted L-shaped reverse mounting plate 22 fixed at one end of the second connecting rod 21, and a rear wheel 29 is installed at the other end of the second connecting rod 21. The two reverse mounting plates 22 are rotatably connected to the front bracket 1 through a sleeve 221, and a second pin shaft 23 connected to the seat bracket 3 is provided between the two reverse mounting plates 22.

[0049] The steering assembly 4 includes a front fork 42 rotatably connected to the first connecting rod 11 and a handlebar 4 for controlling the front fork 42 . A front wheel 43 is mounted at the bottom of the front fork 42 . The handlebar 4 is fixedly mounted on the top of the front fork 42 to control the travel direction of the front wheel 43 .

[0050] One end of the elastic component 6 is rotatably mounted on the first pin shaft 13 , and the other end is rotatably mounted on the second pin shaft 23 .

[0051] The elastic component 6 includes a bracket, a coil spring, and a damper. The bracket is installed at both ends of the damper. The inner diameter of the spring is larger than the outer diameter of the damper. The spring is sleeved on the outside of the damper and fixedly connected to both ends of the bracket.

[0052] Among them, the limiting mechanism is arranged at one end of the seat bracket 3 and is set as a waist-shaped through hole. When the first pin shaft 13 is hinged to the seat bracket 3, the second pin shaft 23 is slidingly connected to the seat bracket through the waist-shaped through hole; when the first pin shaft 13 is slidingly connected to the seat bracket 3 through the waist-shaped through hole, the second pin shaft 23 is hinged to the seat bracket.

[0053] In actual application, when the front wheel 43 passes an obstacle, the front bracket 1 is lifted upward with the sleeve 221 as the fulcrum, the elastic component 6 is compressed, the first pin 13 or the second pin 23 rotates or slides in the hinged hole 32, the second pin 23 or the first pin 13 slides in the waist-shaped through hole, the hinged hole 32 and the waist-shaped through hole limit the movement direction of the seat bracket 3, so that the height of the seat bracket 3 is reduced, thereby keeping the height of the human body unchanged, after passing the obstacle, the elastic component 6 is reset, and at the same time drives the seat bracket 3 to reset; similarly, when the rear wheel 29 passes an obstacle, the rear bracket 2 is lifted, the hinged hole 32 or the waist-shaped through hole limits the movement direction of the seat bracket 3, so that the height of the seat bracket 3 is reduced, and the height of the human body remains unchanged.

[0054] like Figure 3-4 As shown, in some embodiments of the present invention, the difference from other embodiments is that the limiting structure includes a limiting plate 24 and a circular through hole, the limiting plate 24 is installed between the forward mounting plate 12 and the seat bracket 3 or between the reverse mounting plate 22 and the seat bracket 3, and the circular through hole is provided at one end of the seat bracket 3.

[0055] In actual application, when the front wheel 43 passes an obstacle, the front bracket 1 is lifted upward with the sleeve 221 as a fulcrum, the elastic component 6 is compressed, the third pin 25 rotates in the circular through hole, the second pin 23 rotates or slides in the hinged hole 32, and the limit plate 24 also swings between the forward mounting plate 12 and the seat bracket 3; or the first pin 13 rotates or slides in the hinged hole 32, the third pin 25 rotates in the circular through hole, and the limit plate 24 also swings between the reverse mounting plate 22 and the seat bracket 3. The hinged hole 32, the limit plate 24, and the circular through hole cooperate to limit the movement direction of the seat bracket 3, so that the height of the seat bracket 3 is reduced, so that the height of the human body remains unchanged. After passing the obstacle, the elastic component 6 is reset, and the seat bracket 3 is reset at the same time; similarly, when the rear wheel 29 passes an obstacle, the rear bracket 2 is lifted, the hinged hole 32, the limit plate 24, and the circular through hole limit the movement direction of the seat bracket 3, so that the height of the seat bracket 3 is reduced, and the height of the human body remains unchanged.

[0056] In addition, if both ends of the seat support 3 are rotatably connected to the front support 1 and the rear support 2 (i.e., connected through circular through holes), this connection forms a fixed triangle, which restricts the movement of the front support 1 and the rear support 2, and the elastic component 6 cannot work.

[0057] Therefore, one end of the seat bracket 3 is hinged to the front bracket 1, and the other end is connected to the rear bracket 2 through a limiting structure; or one end of the seat bracket 3 is hinged to the rear bracket 2, and the other end is connected to the front bracket 1 through a limiting structure. This limiting structure connection requires a relative non-pure rotational displacement between the front bracket 1 and / or the rear bracket 2 and the seat bracket 3, so that the front bracket 1 and the rear bracket 2 can rotate relative to each other, and the elastic component 6 is compressed or stretched to reset, thereby achieving shock absorption.

[0058] During normal riding, the elastic component 6 pushes the front bracket 1 and the rear bracket 2 outward under the action of elastic force, and is limited by the seat bracket 3 or by the elastic component 6 itself, so that the front bracket 1 and the rear bracket 2 form a stable structure.

[0059] When one end of the seat bracket 3 is hinged to the front bracket 1 and the other end is connected to the rear bracket 2 through a limiting structure, this combined limiting structure connection can also be that the seat bracket 3 and the rear bracket 2 abut against each other and are pressed down into position by the weight of the rider. When the front bracket 1 and / or the rear bracket 2 encounter an obstacle, the front bracket 1 and the rear bracket 2 rotate relative to each other, the seat bracket 3 and the front bracket 1 rotate relative to each other, the seat bracket 3 and the rear bracket 2 are relatively displaced, the shock absorbing assembly 6 is compressed, and shock absorption can also be achieved.

[0060] The present application also provides a bicycle, comprising any of the above-mentioned frame structures. On the basis of the above-mentioned frame, a seat 31, a steering assembly 4, a front wheel 43 and a rear wheel 29 are installed, the seat 31 is installed on the seat frame 3, the front wheel 43 is installed on the front fork 42 of the steering assembly 4, the steering of the front wheel 43 is controlled by the handlebar 4, so as to control the direction of travel of the bicycle, and the rear wheel 29 is installed on the rear frame 2.

[0061] The present application also provides an electric vehicle, comprising any of the above-mentioned frame structures. A motor can be arranged on the front bracket 1 or the rear bracket 2, and a battery can be installed at a suitable position of the front bracket 1 or the rear bracket 2, and power can be provided to the front wheel 43 or the rear wheel 29 through a transmission assembly, so that it can become an electric vehicle.

[0062] For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, all of which fall within the protection scope of the present invention.

Claims

1. A shock-absorbing frame, characterized in that: include: A front bracket (1) for mounting a front wheel (43) and a steering assembly (4); A rear bracket (2) is used to mount a rear wheel (29), wherein the front bracket (1) is rotatably connected to the rear bracket (2); A seat support (3) and an elastic component (6) are provided between the front support (1) and the rear support (2); wherein: The elastic component (6) is rotatably connected to the front bracket (1) and the rear bracket (2) respectively; One end of the seat support (3) is hinged to the front support (1) or the rear support (2), and the other end is connected to the rear support (2) or the front support (1) via a limiting structure.

2. The shock-absorbing frame according to claim 1, characterized in that: The hole through which one end of the seat support (3) is hinged to the front support (1) or the hole through which one end of the seat support (3) is hinged to the rear support (2) is circular or waist-shaped and is arranged at one end of the seat support (3).

3. The shock-absorbing frame according to claim 1, characterized in that: The front bracket (1) comprises a first connecting rod (11), and L-shaped forward mounting plates (12) fixed on both sides of the first connecting rod (11); the two forward mounting plates (12) are rotatably connected to the rear bracket (2), and a first pin shaft (13) for connecting the seat bracket (3) is provided between the two forward mounting plates (12).

4. The shock-absorbing frame according to claim 2, characterized in that: The rear bracket (2) comprises a second connecting rod (21), an inverted L-shaped reverse mounting plate (22) fixed to one end of the second connecting rod (21), the two reverse mounting plates (22) being rotatably connected to the front bracket (1), and a second pin shaft (23) connected to the seat bracket (3) is provided between the two reverse mounting plates (22).

5. The shock-absorbing frame according to claim 3 or 4, characterized in that: One end of the elastic component (6) is rotatably connected to the first pin shaft (13), and the other end is rotatably connected to the second pin shaft (23).

6. The shock-absorbing frame according to claim 5, characterized in that: The elastic component (6) comprises a bracket, a coil spring and a damper. The bracket is mounted at two ends of the damper. The spring sleeve is arranged on the outside of the damper and is fixedly connected to the two ends of the bracket.

7. The shock-absorbing frame according to claim 4, characterized in that: The limiting structure is a waist-shaped through hole, which is arranged at one end of the seat bracket (3) and is slidably connected to the first pin shaft (13) or the second pin shaft (32).

8. The shock-absorbing frame according to claim 4, characterized in that: The limiting structure comprises a limiting plate (24) and a circular through hole, wherein the circular through hole is arranged at one end of the seat support; The limiting plate (24) is installed between the forward mounting plate (12) and the seat bracket (3) or between the reverse mounting plate (22) and the seat bracket (3); One end of the limiting plate (24) is connected to the first pin shaft (13), and the other end is connected to the circular through hole of the seat bracket (3) through the third pin shaft (25), and the other end of the seat bracket (3) is hinged to the second pin shaft (23); or one end of the limiting plate (24) is connected to the second pin shaft (23), and the other end is connected to the circular through hole of the seat bracket (3) through the third pin shaft (25), and the other end of the seat bracket (3) is hinged to the first pin shaft (13).

9. A bicycle, characterized in that: The invention comprises the shock absorbing frame according to any one of claims 1 to 8.

10. An electric vehicle, characterized in that: The invention comprises the shock absorbing frame according to any one of claims 1 to 8.

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