Durable frame

Abstract

The utility model discloses a durable car frame which comprises a car frame body, a battery box, a limiting part and a lithium battery, the battery box is fixedly arranged in the car frame body, the lithium battery is arranged in the battery box, the battery box comprises a limiting screw in threaded connection with one side of the battery box and a fixing rod arranged at the top of the battery box, and the limiting screw is connected with the limiting part. The limiting part is arranged in the battery box and comprises two limiting plates arranged in the battery box, springs arranged on one sides of the limiting plates, two sliding bottom plates arranged in the battery box in a sliding manner and a gear rotationally arranged in the battery box. By arranging the limiting parts, when the lithium battery is mounted in the battery box, the two limiting plates are pushed to move through the springs, and the two limiting plates clamp the two sides of the lithium battery through transmission of the gears, so that the lithium battery is positioned in the center of the battery box; therefore, when the frame body is used, batteries of different models can be installed in the battery box in the frame body.

Description

Technical Field

[0001] The utility model relates to the technical field of electric vehicles, in particular to a durable vehicle frame. Background Art

[0002] Electric vehicles, that is, electric-driven vehicles, are also called electric-driven vehicles. Electric vehicles are divided into AC electric vehicles and DC electric vehicles. Existing electric vehicles generally include an electric vehicle body and front and rear wheels mounted on the lower part of the frame of the electric vehicle body. The hub in the middle of the rear wheel is connected to the rotating shaft of the frame. A motor is installed at the hub of the rear wheel. A lithium battery is installed inside the frame as an energy source. Through the controller, motor and other components, electrical energy is converted into mechanical energy movement to control the current size to change the speed of the vehicle. The lithium battery has a service life and needs to be replaced after a period of use.

[0003] Existing electric vehicle frames are usually provided with a battery box for placing lithium batteries inside, but the internal size is fixed and can only hold a single type of lithium battery. However, lithium batteries on the market have various types and sizes, and there is no protective structure in the battery box. Utility Model Content

[0004] The purpose of the utility model is to provide a durable frame to solve the problem that the electric vehicle frame proposed in the above background technology is usually provided with a battery box for placing lithium batteries inside, but the internal size is fixed, while the lithium batteries on the market have various models and sizes, and there is no protective structure in the battery box.

[0005] To achieve the above purpose, the utility model provides the following technical solutions: a durable frame, including a frame body, a battery box, a limiter and a lithium battery:

[0006] The battery box is fixedly arranged inside the frame body, and a lithium battery is arranged inside the battery box. The battery box includes a limit screw threadedly connected to one side of the battery box and a fixing rod arranged on the top of the battery box, and the limit part is arranged inside the battery box. The limit part is arranged inside the battery box, and the limit part includes two limit plates arranged inside the battery box, and a spring is arranged on one side of the limit plate; two sliding bottom plates are slidably arranged inside the battery box, and a gear is also rotatably arranged inside the battery box; the bottom of the limit plate is connected to the sliding bottom plate, and the spring pushes the limit plate to drive the sliding bottom plate to drive the gear to rotate.

[0007] By adopting the above technical solution, when the lithium battery is installed in the battery box, the two limit plates can be pushed to move by the spring, and the two limit plates can clamp the two sides of the lithium battery through the transmission of the gears so that it is located in the center of the battery box, and it is further fixed by setting a limit screw, so that different types of batteries can be installed in the battery box inside the frame body when it is in use.

[0008] Preferably, the interior of the battery box has a certain space for placing lithium batteries, and the battery box includes a limiting screw and a fixing rod. A threaded groove is provided at one end of the battery box, and the limiting screw passes through the threaded groove and is threadedly connected to the battery box, and the fixing rod is fixed to the top of the battery box by bolts.

[0009] By adopting the above technical solution, the rotation of the screw rod can be limited so that it can move inside the battery box, and the fixing rod can fix the lithium battery inside the battery box.

[0010] Preferably, one end of the limiting screw extends to the outside of the battery box and is provided with a rotating handle, and the end of the limiting screw facing the inside of the battery box is provided with a circular rubber pad.

[0011] By adopting the above technical solution, the limit screw can be driven to move by rotating the handle, so that the rubber pad can contact the lithium battery and clamp it to fix it.

[0012] Preferably, the battery box includes a rotating groove opened inside the battery box and sliding grooves opened on both sides of the rotating groove, the gear is embedded in the rotating groove and is rotatably connected to it, the sliding bottom plate is embedded in the sliding groove and is slidably connected to it, the top of the sliding bottom plate is connected to the limit plate, and the gear is rotatably set at the inner center of the battery box.

[0013] By adopting the above technical solution, the gear can be rotated at the inner center of the battery box, and the two sliding base plates can slide and move inside the battery box.

[0014] Preferably, the limiting portion includes the two limiting plates and a spring arranged on one side of the limiting plate, the other end of the spring is connected to the inner wall of the battery box, and the spring provides elastic force to push the two limiting plates to move toward the inner center of the battery box.

[0015] By adopting the above technical solution, the two limit plates can be pushed to move by the spring, so that the two limit plates clamp the two sides of the lithium battery, and the spring can also play a buffering role.

[0016] Preferably, the limiting part includes two sliding bottom plates slidably arranged in the battery box, a latching tooth arranged on the side of the sliding bottom plate, and a gear rotatably arranged in the battery box. The latching tooth and the gear are meshingly connected, and the two sliding bottom plates are symmetrical around the rotation center of the gear.

[0017] By adopting the above technical solution, the limit plate can move and drive the sliding bottom plate to move. Through the transmission of the gears, the two limit plates can move the same distance, thereby ensuring that the lithium battery is fixed in the center of the battery box.

[0018] Compared with the prior art, the beneficial effect of the utility model is that by setting a limiting portion, when the lithium battery is installed in the battery box, the two limiting plates are pushed to move by the spring, and through the transmission of the gears, the two limiting plates clamp the two sides of the lithium battery so that it is located in the center of the battery box, and it is further fixed by setting a limiting screw, so that different types of batteries can be installed in the battery box inside the frame body when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of this application;

[0020] Figure 2 This is a schematic diagram of the battery box structure of this application;

[0021] Figure 3 This is a schematic diagram of the cross-sectional structure of the battery box of this application;

[0022] Figure 4 This is a schematic diagram of the connection structure between the battery box and the limiting part of this application;

[0023] Figure 5 This is a schematic diagram of the structure of the limiting part of this application.

[0024] In the figure: 1. frame body; 2. battery box; 201. limit screw; 202. fixing rod; 203. rotating groove; 204. sliding groove; 3. limit part; 301. limit plate; 302. spring; 303. sliding bottom plate; 304. latch tooth; 305. gear; 4. lithium battery. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Embodiment 1

[0027] See also Figure 1 , Figure 2 and Figure 3 The utility model provides a technical solution: a durable frame, including a frame body 1, a battery box 2, a limiter 3 and a lithium battery 4:

[0028] The frame body 1 is a frame structure, and a battery box 2 is welded at the center thereof. The interior of the battery box 2 has a certain space for placing a lithium battery 4. The battery box 2 includes a limiting screw 201 threadedly connected to one side of the battery box 2 and a fixing rod 202 arranged at the top of the battery box 2. One end of the limiting screw 201 extends to the outside of the battery box 2 and is provided with a turning handle. The end of the limiting screw 201 facing the inside of the battery box 2 is provided with a circular rubber pad. The fixing rod 202 is fixed to the top of the battery box 2 by bolts, and the rotation of the limiting screw 201 can be limited to move inside the battery box 2, and the fixing rod 202 can fix the lithium battery 4 inside the battery box 2, limiting The positioning part 3 is arranged inside the battery box 2, and the limiting part 3 includes two limiting plates 301 arranged inside the battery box 2, a spring 302 arranged on one side of the limiting plate 301, two sliding bottom plates 303 slidably arranged inside the battery box 2 and a gear 305 rotatably arranged inside the battery box 2, the top of the sliding bottom plate 303 is connected to the bottom of the limiting plate 301, the spring 302 pushes the limiting plate 301 to drive the sliding bottom plate 303 to drive the gear 305 to rotate, and when the lithium battery 4 is installed in the battery box 2, the two limiting plates 301 can be pushed to move by the spring 302, and the two limiting plates 301 can clamp the two sides of the lithium battery 4 through the transmission of the gear 305.

[0029] Embodiment 2

[0030] See also Figure 3 , Figure 4 and Figure 5 The utility model provides a technical solution: a durable frame, including a battery box 2 and a limiter 3:

[0031] The battery box 2 includes a rotating groove 203 opened inside the battery box 2 and sliding grooves 204 opened on both sides of the rotating groove 203. The gear 305 is embedded in the rotating groove 203 and is rotatably connected thereto. The sliding bottom plate 303 is embedded in the sliding groove 204 and is slidably connected thereto. The top of the sliding bottom plate 303 is connected to the limit plate 301. When the sliding bottom plate 303 moves, it can drive the limit plate 301 to move. The gear 305 is rotatably set at the center of the inside of the battery box 2.

[0032] Embodiment 2

[0033] See also Figure 3 , Figure 4 and Figure 5 The utility model provides a technical solution: a durable frame, including a limiting portion 3, a limiting plate 301 and a sliding bottom plate 303:

[0034] The spring 302 provides elastic force to push the two limit plates 301 to move toward the inner center of the battery box 2, so that the two limit plates 301 clamp the two sides of the lithium battery 4. At the same time, the spring 302 can also play a buffering role. A plurality of latch teeth 304 and gears 305 are arranged on one side of the sliding bottom plate 303. The latch teeth 304 and the gears 305 are meshingly connected. The two sliding bottom plates 303 are symmetrical around the rotation center of the gear 305, so that when the limit plate 301 moves, the sliding bottom plate 303 can be driven to move. Through the transmission of the gear 305, the two limit plates 301 can move the same distance, thereby ensuring that the lithium battery 4 is fixed at the center of the battery box 2.

[0035] Working principle: First, when in use, the lithium battery 4 is placed between the two limit plates 301 in the battery box 2, and the two limit plates 301 are pushed to move by the spring 302, so that the two limit plates 301 clamp the two sides of the lithium battery 4. At the same time, the spring 302 can also play a buffering role. When the limit plate 301 moves, it will drive the sliding bottom plate 303 to move. One side of the sliding bottom plate 303 is provided with a plurality of latch teeth 304 and meshed with the gear 305. The two sliding bottom plates 303 surround the gear 305. 05 The rotation center is symmetrical. Through the transmission of the gear 305, the two limit plates 301 clamp the two sides of the lithium battery 4 so that it is located in the center of the battery box 2. Then, the rotation handle can drive the limit screw 201 to move, so that the rubber pad contacts with the lithium battery 4 and clamps it. Then, the fixing rod 202 is fixed to the top of the battery box 2 by bolts, so that the lithium battery 4 can be limited and fixed inside the battery box 2, so that the battery box 2 inside the frame body 1 can be installed with batteries of different models when the frame body 1 is in use.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A durable frame, characterized in that: include: Frame body; A battery box, wherein the battery box is fixedly mounted inside the frame body, a lithium battery is arranged inside the battery box, and the battery box comprises a limit screw threadedly connected to one side of the battery box and a fixing rod arranged on the top of the battery box; The limiting part is arranged inside the battery box, and the limiting part includes two limiting plates arranged inside the battery box, and a spring is arranged on one side of the limiting plate; two sliding bottom plates are slidably arranged inside the battery box, and a gear is also rotatably arranged inside the battery box; the bottom of the limiting plate is connected to the sliding bottom plate, and the spring pushes the limiting plate to drive the sliding bottom plate to drive the gear to rotate.

2. A durable frame according to claim 1, characterized in that: The battery box has a certain space inside for placing lithium batteries. The battery box includes a limiting screw and a fixing rod. A threaded groove is provided at one end of the battery box. The limiting screw passes through the threaded groove and is threadedly connected to the battery box. The fixing rod is fixed to the top of the battery box by bolts.

3. A durable frame according to claim 2, characterized in that: One end of the limiting screw extends to the outside of the battery box and is provided with a rotating handle, and one end of the limiting screw facing the inside of the battery box is provided with a circular rubber pad.

4. A durable frame according to claim 1, characterized in that: The battery box includes a rotating groove opened inside the battery box and sliding grooves opened on both sides of the rotating groove. The gear is embedded in the rotating groove and is rotatably connected to it. The sliding bottom plate is embedded in the sliding groove and is slidably connected to it. The top of the sliding bottom plate is connected to the limit plate. The gear is rotatably set at the inner center of the battery box.

5. A durable frame according to claim 1, characterized in that: The limiting part includes two limiting plates and a spring arranged on one side of the limiting plate, the other end of the spring is connected to the inner wall of the battery box, and the spring provides elastic force to push the two limiting plates to move toward the inner center of the battery box.

6. A durable frame according to claim 1, characterized in that: The limiting part includes two sliding bottom plates slidably arranged in the battery box, latch teeth arranged on the side of the sliding bottom plates and a gear rotatably arranged in the battery box, the latch teeth and the gear are meshingly connected, and the two sliding bottom plates are symmetrical around the rotation center of the gear.

Images