Electric cross-country bicycle

Abstract

The utility model relates to the technical field of bicycles, in particular to an electric cross-country bicycle which comprises a bicycle frame, and the bicycle frame comprises a main beam, a lower pipe, a head pipe and a vertical pipe and is used for installing all parts. The shock absorption assembly is arranged on the bicycle frame and comprises a damper, a first connecting rod, a second connecting rod, a third connecting rod and a fourth connecting rod, one end of the second connecting rod is rotationally connected with the vertical pipe, the tail end of the fourth connecting rod is rotationally connected with the tail end of the vertical pipe, and the shock absorption assembly is used for absorbing and dispersing shock and impact from the road surface in the riding process; and the electric driving assembly is arranged on the frame. Compared with the prior art, the multi-connecting-rod shock-absorbing system has the advantages that the shock-absorbing assembly is arranged, the first connecting rod, the second connecting rod, the third connecting rod, the fourth connecting rod and the damper jointly form the multi-connecting-rod shock-absorbing system, ground impact is effectively absorbed, and riding stability and comfort are guaranteed; and sufficient power can be provided under various terrain conditions.

Description

Technical Field

[0001] The present application relates to the technical field of bicycles, and in particular to an electric off-road bicycle. Background Art

[0002] Over the years, as people's environmental awareness increases and they pursue a healthy life, electric bicycles, as an environmentally friendly and convenient means of personal travel, have been increasingly used. In particular, electric off-road bicycles not only meet the needs of short-distance commuting in cities, but are also an ideal choice for outdoor adventure and mountain biking enthusiasts. However, most electric off-road bicycles on the market still have some design deficiencies.

[0003] In terms of the suspension system, the bumps and impacts frequently encountered in mountain biking pose severe challenges to the stability of the vehicle and the comfort of the rider. Although the traditional suspension system can alleviate vibrations to a certain extent, its shock absorption and cushioning effects are often unsatisfactory under extreme road conditions, causing the rider to become easily fatigued. Long-term riding may also increase the burden on the body.

[0004] In this regard, the present application proposes an electric off-road bicycle to solve this problem. Summary of the invention

[0005] The purpose of this application is to solve at least one of the technical deficiencies.

[0006] To this end, one purpose of the present application is to propose an electric off-road bicycle to solve the problems mentioned in the background technology and overcome the shortcomings of the prior art.

[0007] In order to achieve the above-mentioned objectives, an embodiment of one aspect of the present application provides an electric off-road bicycle, including a frame, wherein the frame includes a main beam, a down tube, a head tube, and a seat tube, which are used to install various components; a shock-absorbing assembly, arranged on the frame, including a damper, a first link, a second link, a third link and a fourth link, one end of the second link is rotatably connected to the seat tube, and the end of the fourth link is rotatably connected to the end of the seat tube, which is used to absorb and disperse vibrations and impacts from the road surface during riding; an electric drive assembly, arranged on the frame, including an integrated drive unit and an integrated power supply, which is used to provide additional power for the bicycle.

[0008] Preferably, any of the above schemes has one end of the damper being rotatably connected to the bottom of the main beam via a fixing seat, one end of the fixing seat being fixedly arranged at the bottom of the main beam, and the damper being horizontally mounted flat.

[0009] Preferably, from any of the above schemes, the other end of the damper is rotatably connected to one end of the first connecting rod, and the other end of the first connecting rod is rotatably connected to one end of the second connecting rod.

[0010] Preferably, from any of the above schemes, one end of the third connecting rod is rotatably connected to the end of the second connecting rod, the other end of the third connecting rod is rotatably connected to the head end of the fourth connecting rod, and the third connecting rod is rotatably connected to a rear wheel mounting shaft for mounting the rear wheel.

[0011] Preferably, any of the above schemes is that a receiving groove for receiving an integrated power source is provided on the lower tube, and a cover plate is provided on the lower tube, which can be detachably mounted on the receiving groove and used to close the receiving groove.

[0012] Preferably, any of the above schemes is that a crankset is mounted on the integrated drive unit, the integrated drive unit provides power to the transmission system of the bicycle through the crankset, and the outer wall of the integrated drive unit is respectively connected to the seat tube and the down tube.

[0013] Preferably, any of the above schemes has a seat detachably mounted in the seat tube, a handlebar mounted in the head tube, a front wheel mounting frame mounted at the bottom of the handlebar, and electronic buttons and an LCD instrument mounted on the handlebar.

[0014] Compared with the prior art, the advantages and beneficial effects of this application are:

[0015] In this application, a shock absorption assembly is provided, and a multi-link shock absorption system is composed of a first link, a second link, a third link, a fourth link and a damper to effectively absorb ground impact and ensure smooth and comfortable riding. An electric drive assembly is provided, and a powerful electric drive unit is used to ensure sufficient power under various terrain conditions.

[0016] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0018] Figure 1 It is a three-dimensional schematic diagram according to an embodiment of the present application;

[0019] Figure 2 This is a schematic diagram of the main beam connection according to an embodiment of the present application;

[0020] Figure 3 This is a schematic diagram of the connection of a damper according to an embodiment of the present application;

[0021] Figure 4 This is a schematic diagram of an integrated power supply explosion according to an embodiment of the present application.

[0022] In the figure: 1. frame, 101. main beam, 102. down tube, 103. head tube, 104. seat tube, 105. seat, 106. handlebar, 2. shock absorber assembly, 201. damper, 202. first connecting rod, 203. second connecting rod, 204. third connecting rod, 205. fourth connecting rod, 206. fixed seat, 3. electric drive assembly, 301. integrated drive unit, 302. integrated power supply, 303. chainring. DETAILED DESCRIPTION

[0023] like Figures 1 to 4 As shown, an electric off-road bicycle comprises a frame 1, a shock-absorbing component 2 and an electric drive component 3.

[0024] Furthermore, the frame 1 includes a main beam 101, a down tube 102, a head tube 103 and a seat tube 104. The main beam 101 is arranged horizontally, and its two ends are respectively connected to the head tube 103 and the seat tube 104. One end of the down tube 102 is connected to the head tube 103. A seat 105 is detachably installed in the seat tube 104. A handlebar 106 is installed in the head tube 103. A front wheel mounting frame is installed at the bottom of the handlebar 106. Electronic buttons and an LCD instrument are installed on the handlebar 106.

[0025] The electronic buttons are used to control the power output of the integrated drive unit 301, and the LCD instrument is convenient for observing the vehicle speed and the remaining power.

[0026] Furthermore, in order to absorb and disperse the vibration and impact from the road surface during riding and reduce the direct impact on the rider's body, a shock absorber assembly 2 is provided in the present application, and the shock absorber assembly 2 includes a damper 201, a first connecting rod 202, a second connecting rod 203, a third connecting rod 204 and a fourth connecting rod 205, one end of the second connecting rod 203 is rotatably connected to the seat tube 104, the end of the fourth connecting rod 205 is rotatably connected to the end of the seat tube 104, and one end of the damper 201 is connected to the main body through a fixing seat 206. The bottom of the beam 101 is rotatably connected, one end of the fixing seat 206 is fixedly arranged at the bottom of the main beam 101, the other end of the damper 201 is rotatably connected to one end of the first link 202, the other end of the first link 202 is rotatably connected to one end of the second link 203, one end of the third link 204 is rotatably connected to the end of the second link 203, the other end of the third link 204 is rotatably connected to the head end of the fourth link 205, and the third link 204 is rotatably connected with a rear wheel mounting shaft.

[0027] Among them, the damper 201 is installed horizontally and flatly, which has little effect on the height of the vehicle, is beneficial to lowering the center of gravity of the vehicle and improving the handling stability.

[0028] Furthermore, in order to provide additional power to the bicycle and improve the bicycle's endurance, an electric drive assembly is provided in the present application. The electric drive assembly 3 includes an integrated drive unit 301 and an integrated power supply 302. A chainring 303 is installed on the integrated drive unit 301. The integrated drive unit 301 provides power to the transmission system of the bicycle through the chainring 303. The outer walls of the integrated drive unit 301 are respectively connected to the seat tube 104 and the down tube 102.

[0029] The integrated drive unit 301 adopts a BAFANG M510 integrated drive unit 301, and the integrated power supply 302 adopts a built-in integrated battery of 20Ah / 720Wh75.

[0030] Furthermore, a receiving groove for receiving the integrated power supply 302 is provided on the lower tube 102, and a cover plate is provided on the lower tube 102, which can be detachably installed on the receiving groove and used to close the receiving groove, so as to facilitate quick disassembly and installation of the integrated power supply 302 and convenient removal of the integrated power supply 302 for charging.

[0031] Specifically, the rear wheel is rotatably connected to the rear wheel mounting shaft, a tower wheel is mounted on the rear wheel, and the tower wheel is connected to the toothed plate 303 through a chain, and the chain position change between the toothed plate 303 and the tower wheel is controlled by the finger shift transmission;

[0032] The front wheel is rotatably connected to the front wheel mounting frame, and both the front and rear wheels use 29-inch tires to make riding more stable.

[0033] An electric off-road bicycle, the working principle is as follows:

[0034] During riding, when the up and down vibration occurs due to the road surface, the rear wheel drives the rear wheel mounting shaft to move the third connecting rod 204, and the vibration is absorbed by the mutual conversion between the third connecting rod 204, the fourth connecting rod 205, the second connecting rod 203, the first connecting rod 202 and the damper 201. In this process, the movement direction of the rear wheel is an arc movement due to the mutual cooperation of the first connecting rod 202, the second connecting rod 203, the third connecting rod 204 and the fourth connecting rod 205.

[0035] When electric drive is required, the integrated drive unit 301 is controlled to output power by operating the electronic button to drive the chainring 303, which drives the tower wheel under the transmission of the chain, and then drives the rear wheel to drive the bicycle.

Claims

1. An electric off-road bicycle, characterized in that: The vehicle frame includes a main beam, a down tube, a head tube, and a seat tube, and is used for installing various components; A shock-absorbing assembly is arranged on the frame, comprising a damper, a first link, a second link, a third link and a fourth link, wherein one end of the second link is rotatably connected to the seat tube, and the end of the fourth link is rotatably connected to the end of the seat tube, and is used to absorb and disperse vibration and impact from the road surface during riding; The electric drive assembly is arranged on the frame and includes an integrated drive unit and an integrated power supply, and is used to provide additional power for the bicycle.

2. The electric off-road bicycle according to claim 1, characterized in that: One end of the damper is rotatably connected to the bottom of the main beam through a fixing seat, one end of the fixing seat is fixedly arranged at the bottom of the main beam, and the damper is horizontally installed.

3. An electric off-road bicycle according to claim 2, characterized in that: The other end of the damper is rotatably connected to one end of the first connecting rod, and the other end of the first connecting rod is rotatably connected to one end of the second connecting rod.

4. The electric off-road bicycle according to claim 1, characterized in that: One end of the third connecting rod is rotatably connected to the end of the second connecting rod, and the other end of the third connecting rod is rotatably connected to the head end of the fourth connecting rod. A rear wheel mounting shaft is rotatably connected to the third connecting rod for mounting the rear wheel.

5. The electric off-road bicycle according to claim 1, characterized in that: The lower tube is provided with a receiving groove for receiving the integrated power supply, and the lower tube is provided with a cover plate which can be detachably mounted on the receiving groove and is used to close the receiving groove.

6. The electric off-road bicycle according to claim 1, characterized in that: A crankset is mounted on the integrated drive unit, and the integrated drive unit provides power to the transmission system of the bicycle through the crankset. The outer wall of the integrated drive unit is respectively connected to the seat tube and the down tube.

7. The electric off-road bicycle according to claim 1, characterized in that: A seat is detachably mounted in the seat tube, a handlebar is mounted in the head tube, a front wheel mounting frame is mounted at the bottom of the handlebar, and an electronic button and an LCD instrument are mounted on the handlebar.

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