Electric bicycle lower tube for installing battery

Abstract

The utility model relates to a lower tube of an electric bicycle, in particular to a lower tube of an electric bicycle for installing a battery, which comprises a tube body provided with a functional cavity, a wiring cavity, a battery jar and a lock hole, the wiring cavity is arranged on one side of the functional cavity, the battery jar is arranged on the other side of the tube body and communicated with the functional cavity, and the lock hole is arranged in the functional cavity. The functional cavity is used for installing a battery box, and the lock hole is located in one side of the pipe body, communicated with the functional cavity and used for locking the battery box; the rear connecting pipe is arranged at one end of the pipe body and is used for being connected with a middle shaft pipe; the front connecting pipe is arranged at the other end of the pipe body and provided with a wiring hole, and the front connecting pipe is used for being connected with a head pipe. According to the electric bicycle lower tube for installing the battery, a battery box can be conveniently installed, meanwhile, the strength is high, deformation of the lower tube can be effectively prevented, and meanwhile the appearance is more attractive.

Description

Technical Field

[0001] The utility model relates to a down tube of an electric bicycle, in particular to a down tube of an electric bicycle for installing a battery. Background Art

[0002] To facilitate battery installation and avoid occupying additional space, many electric bicycles have begun to have battery mounting slots on the downtube, where the batteries are mounted. For example, CN206654153U discloses an electric bicycle battery box fixing mechanism comprising a frame tube, an anti-theft lock seat, and a controller storage box. The frame tube is a double-layer tube comprising a circumferentially closed outer tube and a partition disposed axially within the outer tube. The partition divides the double-layer tube into an upper tube and a lower tube. The frame tube is provided with a notch, which is the portion of the lower tube remaining after the upper tube is cut along the partition. The anti-theft lock seat and the controller storage box are detachably mounted at both ends of the notch along the length direction, with the battery box mounted between the anti-theft lock seat and the controller storage box. However, due to the large notch, this structure results in a low strength frame tube and is prone to deformation. Utility Model Content

[0003] In order to solve the above-mentioned problem of insufficient strength and easy deformation of the down tube, the utility model provides an electric bicycle down tube for installing a battery. The specific technical solution is as follows:

[0004] A down tube of an electric bicycle for installing a battery comprises: a tube body, provided with a functional cavity, a wiring cavity, a battery slot and a lock hole, wherein the wiring cavity is located on one side of the functional cavity, the battery slot is located on the other side of the tube body and communicates with the functional cavity, the functional cavity is used to install a battery box, and the lock hole is located on one side of the tube body and communicates with the functional cavity for locking the battery box; a rear pipe tube, provided at one end of the tube body and used to be connected to a bottom bracket tube; and a front pipe tube, provided at the other end of the tube body and provided with a wiring hole, the front pipe tube being used to be connected to a head tube.

[0005] Preferably, the front connecting pipe and the rear connecting pipe are bent toward two sides of the pipe body respectively.

[0006] Furthermore, the end of the front connecting pipe is triangular, and the end of the rear connecting pipe is rectangular.

[0007] Preferably, a reinforcement cavity is further provided on the tube body, and the reinforcement cavity and the wiring cavity are both located on the same side of the functional cavity.

[0008] Furthermore, the reinforcement cavity is symmetrically arranged on both sides of the routing cavity.

[0009] Preferably, a wiring hole is provided on one side of the front connecting pipe, and the wiring hole is communicated with the wiring cavity.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] The utility model provides an electric bicycle down tube for installing a battery, which can facilitate the installation of a battery box and has high strength, can effectively prevent the down tube from being deformed, and has a more beautiful appearance. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a stereogram from the first viewing angle of this application;

[0013] Figure 2 It is a stereogram of the second viewing angle of this application;

[0014] Figure 3 It is a front view of the present application;

[0015] Figure 4 It is a right view of this application;

[0016] Figure 5 It is a left view of this application;

[0017] Figure 6 It is along Figure 3 Sectional view along line AA. DETAILED DESCRIPTION

[0018] The present invention will now be further described with reference to the accompanying drawings.

[0019] like Figures 1 to 6 As shown, a downtube for an electric bicycle for mounting a battery comprises a tube body 1, a rear tube 2, and a front tube 3 disposed at each end of the tube body 1. The rear tube 2 and the front tube 3 form an integral structure with the tube body 1. The tube body 1 is made of an aluminum profile and includes a functional cavity 13, a wiring cavity 11, and a reinforcement cavity 12. The reinforcement cavity 12 is symmetrically located on either side of the wiring cavity 11. A battery slot 6 is provided on the other side of the tube body 1. The battery slot 6 communicates with the functional cavity 13 and is used to receive a battery box located within the functional cavity 13. A lock hole 4 is provided on the side of the tube body 1. The lock hole 4 communicates with the functional cavity 13 and is used to mount a lock, which is used to secure the battery box.

[0020] A battery slot 6 is machined on one side of the tube body 1, which is equivalent to removing part of the side of the tube body 1. The tube body 1 still retains two side edges, thus effectively improving the overall strength. At the same time, the wiring cavity 11 and the reinforcement cavity 12 enhance the strength of the tube body 1, making the tube body 1 less prone to deformation. The wiring cavity 11 can also be used for wiring to prevent the wires from being exposed. The rear pipe 2 and the front pipe 3 are both machined from both ends of the tube body 1. First, the partitions forming the functional cavity 13 and the reinforcement cavity 12 are removed from both ends of the tube body 1. Then, the diameters of the front pipe 3 and the rear pipe 2 are reduced through a closing process, and then bent so that the front pipe 3 and the rear pipe 2 are bent to both sides of the tube body 1 respectively. The bent structure can increase the strength and facilitate welding with the frame. The rear pipe 2 is used to connect to the middle axis tube; the front pipe 3 is used to connect to the head pipe. The end of the front pipe 3 is triangular, which is convenient for welding with the head pipe, and the end of the rear pipe 2 is rectangular, which is convenient for welding with the middle axis tube.

[0021] A wiring hole 5 is provided on the side of the front pipe 3, which is communicated with the wiring cavity 11 and is used to lead out the wires inside the pipe body 1 to facilitate connection with the control handle on the handlebar of the car.

[0022] Since the pipe body 1, the front pipe 3 and the rear pipe 2 are an integral structure, the overall strength is relatively high. The bent front pipe 3 and the rear pipe 2 can not only improve the strength and facilitate connection with the frame, but also make the appearance more beautiful.

[0023] The tube body 1 is made of aluminum profile, which can ensure strength while being light and low in cost.

[0024] The technical principles of the present invention have been described above with reference to specific embodiments. These descriptions are intended solely to illustrate the principles of the present invention and should not be construed in any way as limiting the scope of protection of the present invention. Based on the explanations herein, those skilled in the art will be able to devise other specific embodiments of the present invention without inventive effort, and such embodiments will fall within the scope of protection of the claims of the present invention.

Claims

1. A down tube of an electric bicycle for installing a battery, characterized in that: include: A tube body (1) is provided with a functional cavity (13), a wiring cavity (11), a battery slot (6) and a lock hole (4), wherein the wiring cavity (11) is located on one side of the functional cavity (13), the battery slot (6) is located on the other side of the tube body (1) and communicates with the functional cavity (13), the functional cavity (13) is used to install a battery box, and the lock hole (4) is located on one side of the tube body (1) and communicates with the functional cavity (13) and is used to lock the battery box; A rear pipe (2), provided at one end of the pipe body (1) and used for connecting with the center axis pipe; as well as A front pipe (3) is arranged at the other end of the pipe body (1) and is provided with a wiring hole (5). The front pipe (3) is used to be connected to the head pipe.

2. The down tube of an electric bicycle for installing a battery according to claim 1, characterized in that: The front pipe (3) and the rear pipe (2) are respectively bent toward two sides of the pipe body (1).

3. An electric bicycle down tube for installing a battery according to claim 1 or 2, characterized in that: The end of the front pipe (3) is triangular, and the end of the rear pipe (2) is rectangular.

4. The down tube of an electric bicycle for installing a battery according to claim 1, characterized in that: The tube body (1) is also provided with a reinforcement cavity (12), and the reinforcement cavity (12) and the wiring cavity (11) are both located on the same side of the functional cavity (13).

5. The down tube of an electric bicycle for installing a battery according to claim 4, characterized in that: The reinforcement cavity (12) is symmetrically arranged on both sides of the wiring cavity (11).

6. The down tube of an electric bicycle for installing a battery according to claim 1, characterized in that: A wiring hole (5) is provided on one side of the front pipe (3), and the wiring hole (5) is communicated with the wiring cavity (11).

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