Vehicle rear fork

Abstract

The utility model discloses a rear fork of a vehicle, which relates to the technical field of vehicles and comprises two side support arms, a front beam and a connecting beam, the two side support arms are arranged in parallel, and the front beam is arranged at the same ends of the two side support arms; the two ends of the connecting beam are connected with the two side supporting arms respectively, the connecting beam is arched, and the arched direction of the connecting beam is perpendicular to the plane where the two side supporting arms are located; during installation, the motor is arranged at one end, far away from the front beam, of the side support arm; when the rear fork is used, due to the fact that the arch-shaped connecting beam supports the two side supporting arms, strength is higher, torsion transmitted by the two side supporting arms can be borne better, the service life of the rear fork is prolonged, and product competitiveness is improved.

Description

Technical Field

[0001] This utility model relates to the field of vehicle technology, specifically to a vehicle rear horizontal fork. Background Technology

[0002] The rear swingarm is an important supporting and connecting component of a vehicle. It consists of symmetrically arranged side arms, a swingarm tube connecting the central shaft, and a connector between the two arms. The quality of the rear swingarm directly affects the vehicle's safety, comfort, and service life.

[0003] In the assembly of electric tricycles, the two support arms on the rear swingarm are used to install the motor and the wheel respectively. The connecting parts between the two support arms are straight. When the two motors on both sides work at the same time, the torque is very large. The straight connecting parts have poor torque bearing capacity. With long-term use, the connecting parts are more likely to break.

[0004] In view of this, there is an urgent need for a vehicle rear swingarm to solve the above problems. Utility Model Content

[0005] To address the problems existing in the prior art, this utility model solves the problem using the following technical structure.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A vehicle rear swingarm includes: two side arms, a front beam, and a connecting beam, wherein the two side arms are arranged in parallel, and the front beam is disposed at the same end of the two side arms;

[0008] The two ends of the connecting beam are respectively connected to the two side arms. The connecting beam is arched, and the direction of the arch is perpendicular to the plane where the two side arms are located.

[0009] Multiple connecting beams are provided, and the multiple connecting beams are arranged in parallel.

[0010] Several first reinforcing bars are provided on two adjacent connecting beams.

[0011] The side arm is provided with an installation ring at the end away from the front beam.

[0012] The side support arm includes a first side support arm and a second side support arm. The first side support arm is disposed at one end of the second side support arm. The distance between the two first side support arms is less than the distance between the two second side support arms. The front beam is disposed at the end of the two first side support arms away from the second side support arms. The connecting beam is disposed on the two second side support arms.

[0013] A second reinforcing rod is provided between the two ends of the first side arms that are close to the second side arms.

[0014] The first side arm and the second side arm are connected by a circular arc transition.

[0015] The side support arm is made of round or square tube.

[0016] The connecting beam is made of round or square tubing.

[0017] The connecting beam is arc-shaped.

[0018] The above-described structure of this utility model can achieve the following beneficial effects:

[0019] During installation, the motor is positioned at the end of the side arm furthest from the front beam. During use, the arched connecting beam supports the two side arms, resulting in higher strength and better bearing of the torque transmitted by the two side arms, thereby extending the service life of the rear swingarm and improving product competitiveness. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this embodiment;

[0021] Figure 2 This is a side view of the structure in this embodiment.

[0022] In the diagram: 1. Side support arm; 11. First side support arm; 12. Second side support arm; 2. Front beam; 3. Connecting beam; 4. First reinforcing bar; 5. Mounting ring; 6. Second reinforcing bar. Detailed Implementation

[0023] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0024] It should be noted that the terms "comprising" and "having" and any variations thereof in the specification, claims and accompanying drawings of this utility model are intended to cover non-exclusive inclusion. For example, a process, method, apparatus, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such processes, methods, products or devices.

[0025] The following is in conjunction with the appendix Figures 1-2 This application will be described in further detail.

[0026] like Figures 1-2As shown, a vehicle rear swingarm includes: two side arms 1, a front beam 2, and a connecting beam 3. The two side arms 1 are arranged in parallel, and the front beam 2 is located at the same end of the two side arms 1. The two ends of the connecting beam 3 are respectively connected to the two side arms 1. The connecting beam 3 is arched (preferably arc-shaped), and the direction of the arch of the connecting beam 3 is perpendicular to the plane where the two side arms 1 are located (in use, the connecting beam 3 arches upward or downward). Thus, during installation, the motor is located at the end of the side arm 1 away from the front beam 2. In use, because the arched connecting beam 3 supports the two side arms 1, it has higher strength and can better bear the torque transmitted by the two side arms 1, thereby extending the service life of the rear swingarm and improving product competitiveness.

[0027] Further optimizations include, for example Figure 1 As shown, in order to further improve stability, multiple connecting beams 3 are provided, and the multiple connecting beams 3 are arranged in parallel; and several first reinforcing rods 4 are provided between two adjacent connecting beams 3 to support the two connecting beams 3, so as to improve the structural stability of the two connecting beams 3. In this embodiment, two connecting beams 3 are used, and several first reinforcing rods 4 are provided between the two connecting beams 3, and the several first reinforcing rods 4 are arranged in parallel.

[0028] like Figure 1 As shown, in order to facilitate the installation of the motor and wheels, a mounting ring 5 is provided at the end of the side arm 1 away from the front beam 2. The bearing can be easily installed through the mounting ring 5, and then the motor and wheels can be installed.

[0029] like Figure 1 As shown, the side support arm 1 includes a first side support arm 11 and a second side support arm 12. The first side support arm 11 is located at one end of the second side support arm 12, and the distance between the two first side support arms 11 is less than the distance between the two second side support arms 12. The front beam 2 is located at the end of the two first side support arms 11 away from the second side support arms 12, and the connecting beam 3 is located on the two second side support arms 12. In this way, the width of the side support arm 1 near the front wheel is reduced, and the width of the front of the vehicle is reduced. Furthermore, a second reinforcing rod 6 is provided between the ends of the two first side support arms 11 near the second side support arms 12, which further improves the stability and strength of the flat fork structure.

[0030] A further optimization is the use of a rounded transition between the first side arm 11 and the second side arm 12. This design effectively prevents stress concentration and avoids cracks or fractures caused by sharp corners, thereby improving the strength and durability of the side arm 1.

[0031] Further optimization involves making components such as the side support arm 1 and the connecting beam 3 from round or square tubes. In this embodiment, round tubes are used because they have stronger torsional resistance, thus further improving the strength of the structure.

[0032] In summary, during installation, the motor should be positioned at the end of the side support arm 1 furthest from the front beam 2. During use, the arched connecting beam 3 supports the two side support arms 1, providing greater strength and better bearing the torque transmitted by the two side support arms 1, thereby extending the service life of the rear swingarm and improving product competitiveness.

[0033] The above are merely preferred embodiments of this application, and the present invention is not limited to the above embodiments. It is understood that other improvements and variations that can be directly derived or conceived by those skilled in the art without departing from the spirit and concept of the present invention should be considered to be included within the protection scope of the present invention.

Claims

1. A vehicle rear horizontal fork, characterized in that, include: Two side arms (1), a front beam (2) and a connecting beam (3), the two side arms (1) are arranged in parallel, and the front beam (2) is located at the same end of the two side arms (1); The two ends of the connecting beam (3) are respectively connected to the two side arms (1). The connecting beam (3) is arched, and the direction of the arch of the connecting beam (3) is perpendicular to the plane where the two side arms (1) are located.

2. The vehicle rear dropout in accordance with claim 1, characterized in that: Multiple connecting beams (3) are provided, and the multiple connecting beams (3) are arranged in parallel.

3. The vehicle rear dropout according to claim 2, characterized in that: Several first reinforcing rods (4) are provided between two adjacent connecting beams (3).

4. The vehicle rear dropout according to claim 1, characterized in that: The side arm (1) is provided with an installation ring (5) at the end away from the front beam (2).

5. The vehicle rear swingarm according to claim 1, characterized in that: The side arm (1) includes a first side arm (11) and a second side arm (12). The first side arm (11) is located at one end of the second side arm (12). The distance between the two first side arms (11) is less than the distance between the two second side arms (12). The front beam (2) is located at one end of the two first side arms (11) away from the second side arms (12). The connecting beam (3) is located on the two second side arms (12).

6. The vehicle rear dropout in accordance with claim 5, characterized in that: A second reinforcing rod (6) is provided between the two ends of the first side arm (11) near the second side arm (12).

7. The vehicle rear dropout of claim 5, wherein: The first side arm (11) and the second side arm (12) are connected by a circular arc transition.

8. The vehicle rear dropout in claim 1, wherein: The side support arm (1) is made of a round tube or a square tube.

9. The vehicle rear dropout in claim 1, wherein: The connecting beam (3) is made of round or square tube.

10. The vehicle rear dropout in claim 1, wherein: The connecting beam (3) is arc-shaped.

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