CN207712221U - The body frame structure for automotive of centre fold - Google Patents

Abstract

The utility model relates to a vehicle frame structure folded in the middle, including a front wheel, a front axle, a bracket, a rotating shaft, a vehicle frame, a cover plate, a mounting seat, and a rear wheel. The normal riding state is composed of the bracket and the frame from front to back. When it needs to be folded, the handle is partially retracted first, and then the frame is rotated 180° along the rotation axis, and the front wheel is driven back to the front of the frame by the bracket. In the cavity of the front part of the frame, since the grooved through hole on the front cavity of the frame and the cover plate are sealed by the engaged plastic parts, the front wheelchair can pass through the grooved through hole smoothly, thereby connecting the front wheel and the rear wheel. The frame is folded, which reduces the folded size and makes it easier to carry. Therefore, it is convenient and practical.

Description

Middle folded frame structure

technical field

The utility model relates to the field of mechanical accessories, in particular to a vehicle frame structure with a middle fold.

Background technique

Electric vehicles, that is, electric drive vehicles, have another name called electric drive vehicles. Electric vehicles are divided into AC electric vehicles and DC electric vehicles. Generally speaking, electric vehicles use batteries as the energy source, and convert electrical energy into mechanical energy through controllers, motors and other components to control the current and change the speed of the vehicle.

The first electric car was manufactured in 1881. The inventor was French engineer Gustav Truff. It was a tricycle powered by a lead-acid battery. It was driven by a DC motor. Today, electric cars Huge changes have taken place and there are many types. Electric bicycles have been favored by low- and middle-income groups in cities for their cheap, convenient, and environmentally-friendly functional advantages. From the research and development of electric bicycles in China to the market launch in small batches in the mid-1990s, to the production and sales since 2012, it has been showing a momentum of substantial growth year by year. Due to strong demand, China's electric bicycle market has maintained leapfrog growth in recent years.

The structure of the electric vehicle is very simple. The basic units are the frame, plastic parts, shock absorbers, batteries, controllers, and motors. The quality of the frame is particularly critical. Many users don't care much about the quality of the frame because it is difficult to observe. However, the quality of the frame directly determines the safety performance of the vehicle. In order to prevent rust, the frame needs a process called electrophoresis. Many frame manufacturers simply spray black paint without electrophoresis in order to control costs. During the test drive, drive at a high speed and then brake suddenly to see if the frame shakes from side to side. If the shake is severe, it means that the quality of the frame is not up to standard and there are potential safety hazards. Shock absorption is a key component that affects comfort, and it is divided into front shock absorption and rear shock absorption. The choice of battery is also very important. A good battery can greatly reduce the later use and maintenance costs of consumers.

At present, most of the foldable battery cars fold the handle part toward the frame, so the overall length is relatively long, it is not easy to carry, and the range of use is limited.

Utility model content

The utility model aims at the above problems, and provides a telescopic handle, and can fold the front and rear wheels of the storage battery car to the frame structure in the middle of the side-by-side state.

The utility model realizes above-mentioned purpose through following technical scheme:

The frame structure folded in the middle includes front wheels, front axles, brackets, rotating shafts, vehicle frames, cover plates, mounting seats, and rear wheels. It is characterized in that the front wheels are arranged on the brackets through the front axles, and the brackets are connected to The frame is connected, the front part of the frame is set as a cavity, the rear part has a protruding part perpendicular to the front cavity, a cover plate is set above the front part of the frame, and a slot-shaped through hole is set in the middle of the front part of the frame. Corresponding positions on the board are also provided with slot-shaped through holes, and rear wheels are provided under the protruding part at the rear of the vehicle frame through the mounting seat. The front wheels are guide wheels. The rear wheels are load-bearing wheels. The front cavity of the vehicle frame is sealed with the grooved through hole on the cover plate through the engaged plastic parts.

In the utility model, in the state of use, the front wheel and the rear wheel form a normal riding state from front to back through the bracket and the frame. When it needs to be folded, the handle part is first contracted, and then the frame is rotated 180° along the rotation axis. , the front wheel is turned back into the cavity at the front of the frame under the drive of the bracket. Since the cavity at the front of the frame and the groove-shaped through hole on the cover plate are sealed by the meshed plastic parts, the front wheelchair can pass through the groove smoothly. Shaped through holes, so that the frame connected between the front wheel and the rear wheel is folded, which reduces the folded size and makes it easier to carry. Therefore, it is convenient and practical.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of the utility model, and Fig. 2 is a schematic diagram of the folded state of the utility model, wherein:

1—front wheel, 2—front axle, 3—support, 4—rotating shaft, 5—vehicle frame, 6—cover plate, 7—mounting seat, 8—rear wheel.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

The structure of the vehicle frame 5 folded in the middle includes a front wheel 1, a front axle 2, a bracket 3, a rotating shaft 4, a vehicle frame 5, a cover plate 6, a mounting seat 7, and a rear wheel 8, and it is characterized in that the front wheel 1 passes through the front axle 2 is arranged on the bracket 3, the bracket 3 is connected with the vehicle frame 5 through the rotating shaft 4, the front part of the vehicle frame 5 is set as a cavity, the rear part has a protruding part perpendicular to the front cavity, and the front part of the vehicle frame 5 is provided with a The cover plate 6 is provided with a groove-shaped through hole in the middle of the front part of the vehicle frame 5, and the corresponding position on the cover plate 6 is also provided with a groove-shaped through hole. . Front wheel 1 is guide wheel. Rear wheel 8 is load-bearing wheel. The front cavity of the vehicle frame 5 and the slot-shaped through hole on the cover plate 6 are sealed by engaging plastic parts.

In the utility model, under the use state, the front wheel 1 and the rear wheel 8 form a normal riding state from front to back through the bracket 3 and the frame 5. When it needs to be folded, the handle part is first contracted, and then the frame 5 is The rotating shaft 4 rotates 180°, and the front wheel 1 is turned back into the cavity at the front of the vehicle frame 5 under the drive of the bracket 3. Since the cavity at the front of the vehicle frame 5 and the slot-shaped through hole on the cover plate 6 pass through the engaged plastic The parts are sealed, and the front wheel 1 chair can pass through the grooved through hole smoothly, thereby the vehicle frame 5 connected between the front wheel 1 and the rear wheel 8 is folded, which reduces the folded size and is more convenient to carry. Therefore, it is convenient and practical.

It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, no matter from all points of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, so it is intended to fall within the scope of the claims All changes within the meaning and range of equivalents of the required elements are included in the present invention. Any reference sign in a claim should not be construed as limiting the claim concerned.

In addition, it should be understood that although this specification is described according to implementation modes, not each implementation mode only includes an independent technical solution, and this description in the specification is only for clarity, and those skilled in the art should take the specification as a whole , the technical solutions in the various embodiments can also be properly combined to form other implementations that can be understood by those skilled in the art.

Claims (4)

1. The frame structure folded in the middle, including front wheel, front axle, bracket, rotating shaft, frame, cover plate, mounting seat, rear wheel, is characterized in that the front wheel is set on the bracket through the front axle, and the bracket is rotated by The shaft is connected with the frame, the front part of the frame is set as a cavity, the rear part has a protruding part perpendicular to the front cavity, a cover plate is set above the front part of the frame, and a slot-shaped through hole is set in the middle of the front part of the frame , the corresponding position on the cover plate is also provided with a groove-shaped through hole, and the rear wheel is provided through the mounting seat under the protruding part of the rear part of the vehicle frame. 2. The vehicle frame structure folded in the middle according to claim 1, characterized in that the front wheels are guide wheels. 3. The vehicle frame structure folded in the middle according to claim 1, characterized in that the rear wheels are load-bearing wheels. 4. The vehicle frame structure folded in the middle according to claim 1, characterized in that the front cavity of the vehicle frame and the slot-shaped through hole on the cover plate are sealed by engaging plastic parts.