Frame capable of increasing cab space

Abstract

The utility model relates to the field of cargo carrying electro-tricycles, and discloses a frame capable of enlarging cab space, which comprises two groups of front camber beams and rear camber beams, the two groups of front camber beams and rear camber beams are respectively positioned on two sides of the frame, each front camber beam comprises a first horizontal part and a C-shaped part, a first cross beam is arranged between the tops of the two C-shaped parts, and a second cross beam is arranged between the tops of the two C-shaped parts. A second cross beam is arranged between the bottoms of the two C-shaped parts, a headstock main beam is obliquely connected between the two first horizontal parts, and the upper end of the headstock main beam is connected with the first cross beam; the headstock main beam is bent, the included angle between the upper end of the headstock main beam and the horizontal plane is 40-50 degrees, the included angle between the lower end of the headstock main beam and the horizontal plane is 60 degrees, and the top of the headstock main beam is connected with a headstock mounting column. By improving the traditional design of the front frame of the electro-tricycle, the cab space is increased, the driving experience is improved, and safe operation of a driver is facilitated.

Description

Technical Field

[0001] The utility model relates to the field of electric cargo tricycles, in particular to a frame with increased cab space. Background Art

[0002] Electric tricycles are three-wheeled vehicles that are powered by batteries and driven by motors and are used to transport goods or people. Among them, freight electric tricycles have a wide market due to their maneuverability, ease of operation, low price, and suitability for short-distance cargo transportation.

[0003] The frame of an electric tricycle usually consists of two parts, the front frame and the rear frame, which are connected to each other. The rear frame is used to install the cargo bucket, the rear end of the front frame is installed with the seat, and the front end is installed with the front main beam for connecting the front of the vehicle. The driver's operating space, i.e., the cab, is formed between the front and the seat. In order to increase the cargo space, the design of the front frame of existing electric tricycles is relatively limited. While controlling the overall length of the electric tricycle, more space is often reserved for the rear frame, which makes the internal space of the cab cramped. The driver's operation is relatively limited during driving, which reduces the driving experience and increases the driving risk. Utility Model Content

[0004] The utility model aims to provide a frame with increased cab space, which increases the cab space, improves the driving experience and facilitates safe operation of the driver by improving the traditional design of the front frame of the electric tricycle.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a frame for increasing the space of a cab, comprising two groups of front curved beams and rear curved beams, the two groups of front curved beams and rear curved beams are respectively located on both sides of the frame, the front curved beams each comprise a first horizontal portion and a C-shaped portion, a first cross beam is provided between the tops of the two C-shaped portions, a second cross beam is provided between the bottoms of the two C-shaped portions, a front main beam is obliquely connected between the two first horizontal portions, and the upper end of the front main beam is connected to the first cross beam; the front main beam is bent, and the angle between the upper end of the front main beam and the horizontal plane is 40-50°, the angle between the lower end of the front main beam and the horizontal plane is 60°, and the top of the front main beam is connected to a front mounting column.

[0006] The beneficial effects of this solution are: 1. By designing the angles of the upper and lower ends of the bent front main beam, while ensuring that the front main beam has sufficient load-bearing capacity, by installing its lower end as tilted outward as possible, the purpose of providing more space for the cab above the first horizontal part is achieved, thereby ensuring that the overall length of the electric tricycle does not exceed the national standard and does not reduce the length of the rear frame, increasing the cab space and providing the driver with a more comfortable driving experience and safe driving operation space.

[0007] 2. The C-shaped portion, the first crossbeam and the second crossbeam form a structural component under the front of the electric tricycle. The first crossbeam and the second crossbeam are parallel to each other, which further improves the structural strength and stability of the front of the electric tricycle and lays a foundation for increasing the cab space design.

[0008] Preferably, the angle between the front mounting column and the vertical direction is 20°.

[0009] Preferably, it also includes a front reinforcement plate, the bottom of which is connected between the two first horizontal parts, the top of which is connected between the upper ends of the two C-shaped parts, and a connecting rod is provided between the front reinforcement plate and the C-shaped part.

[0010] Preferably, a reinforcing crossbeam is provided between the two C-shaped portions, and the reinforcing crossbeam is located between the first crossbeam and the second crossbeam.

[0011] Preferably, the rear curved beam includes an S-shaped portion and a second horizontal portion, the S-shaped portion includes horizontal sections on both sides and an inclined section located between the horizontal sections, the second horizontal portion is parallel to the first horizontal portion, and the angle between the inclined section in the middle of the S-shaped portion and the horizontal plane is 45°.

[0012] Preferably, a storage tank support frame is further included, and the storage tank support frame is arranged below the rear curved beam, and the storage tank support beam is connected to the top of the rear curved beam.

[0013] Preferably, the front curved beam and the rear curved beam are the same entity; the front curved beam and the rear curved beam are both square tubes, and the ratio of the height to the width of the square tube is 5:7. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front view of the frame in the embodiment of the utility model;

[0015] Figure 2 A top view of a frame in an embodiment of the utility model;

[0016] Figure 3 It is a left view of the frame in the embodiment of the utility model;

[0017] Figure 4 It is a schematic diagram of a square tube in an embodiment of the utility model. DETAILED DESCRIPTION

[0018] The following is further described in detail through specific implementation methods:

[0019] The figure marks in the drawings of the specification include: front curved beam 11, rear curved beam 12, front reinforcement plate 2, connecting rod 21, front main beam 3, front mounting column 31, first cross beam 32, second cross beam 33, reinforcement cross beam 34, tank support frame 4, tank support beam 41, square tube 5.

[0020] Example

[0021] The embodiment is basically as shown in the attached Figure 1-4 As shown, Figure 1 The frame for increasing the cab space shown in the figure comprises a front curved beam 11 and a rear curved beam 12 connected to each other, combined with Figure 2 As shown, two groups of interconnected front curved beams 11 and rear curved beams 12 are provided, and the two groups of front curved beams 11 and rear curved beams 12 are respectively arranged on both sides of the frame, thereby forming the main beam frame of the electric tricycle.

[0022] In this embodiment, the front curved beam 11 includes a first horizontal portion and a C-shaped portion, and the first horizontal portion and the C-shaped portion are integrally formed to improve the overall structural strength of the front curved beam 11 and increase the ability of the front frame of the electric tricycle to withstand impact. Figure 3 As shown, a first cross beam 32 is welded and fixed between the tops of the two C-shaped parts, and a second cross beam 33 is welded and fixed between the bottoms of the two C-shaped parts. The C-shaped parts, the first cross beam 32 and the second cross beam 33 form a structural component under the front of the electric tricycle. The first cross beam 32 and the second cross beam 33 are parallel to each other, and a reinforcing cross beam 34 is welded and fixed between the first cross beam 32 and the second cross beam 33. The enhanced reinforcing cross beam 34 further improves the structural strength and stability of the front of the electric tricycle, and lays a foundation for increasing the cab space design.

[0023] A bottom plate is welded and fixed between the two first horizontal parts, and a front main beam 3 is fixed obliquely on the bottom plate. Figure 1 As shown, the front main beam 3 is bent, and the upper end of the front main beam 3 is bent outward from the frame. The upper end of the front main beam 3 is fixed to the first cross beam 32 by welding. After fixing, the angle between the upper end of the front main beam 3 and the horizontal plane is 40-50° (set to 40° in this embodiment), and the angle between the lower end of the front main beam 3 and the horizontal plane is 60°; by designing the angles of the upper and lower ends of the bent front main beam 3, while ensuring that the front main beam 3 has sufficient load-bearing capacity, by installing its lower end as tilted outward as possible, the purpose of providing more space for the cab above the first horizontal part is achieved, thereby ensuring that the overall length of the electric tricycle does not exceed the national standard and does not reduce the length of the rear frame, increasing the cab space and providing the driver with a more comfortable driving experience and safe driving operation space.

[0024] like Figure 1As shown, a front mounting column 31 is welded and fixed on the top of the front main beam 3, and the front mounting column 31 is used to install the direction handlebar of the electric tricycle. In this embodiment, after being fixed, the angle between the front mounting column 31 and the vertical direction is 20°. Relative to the vertical front mounting column 31, the tilting setting can also reserve more operating space for the cab. The front mounting column 31 is connected to the shock absorber and the front wheel axle, so its tilt angle affects the driving safety of the electric tricycle. After research and testing, in this frame structure, when the tilt angle of the front mounting column 31 is set to 20°, the driving safety of the electric tricycle can be better guaranteed; if the tilt angle is greater than 20°, the force on the frame main beam becomes larger, and the frame main beam is prone to breakage; if the tilt angle is less than 20°, the electric tricycle lacks buffering during the forward driving process, which will increase the force on the shock absorber, thereby increasing the risk of shock absorber damage.

[0025] The front reinforcement plate 2 is also provided, and the front reinforcement plate 2 is also tilted outward. Figure 1 and Figure 2 As shown, the bottom of the front reinforcement plate 2 is connected to the bottom plate between the two first horizontal parts, and the top of the front reinforcement plate 2 is connected between the upper ends of the two C-shaped parts. Specifically, the top of the front reinforcement plate 2 is welded and fixed to the lower side of the first cross beam 32; a connecting rod 21 is welded and fixed between the front reinforcement plate 2 and the C-shaped part, and the structural strength of the connection between the front reinforcement plate 2 and the front curved beam 11 is further improved by the connecting rod 21, and the front reinforcement plate 2 further supports and reinforces the C-shaped part of the front curved beam 11, so as to improve the structural strength of the front of the electric tricycle, ensure the ability of the front of the vehicle to cope with accidental collision accidents after the improvement of the cab space structure, and ensure the safety of the driver.

[0026] like Figure 1 As shown, the rear curved beam 12 includes an S-shaped portion and a second horizontal portion, the S-shaped portion includes parallel sections at both ends and an inclined section located between the parallel sections, the S-shaped portion is connected to the first horizontal portion, and the second horizontal portion and the first horizontal portion are parallel to each other; the angle between the inclined section and the horizontal plane is 45°, so as to more evenly disperse the stress from the junction of the front curved beam 11 and the rear curved beam 12, improve the overall structural stability of the frame, especially when the load of the electric tricycle changes or it is driving on complex road conditions, it can better ensure the rigidity and strength of the frame, and avoid deformation or damage of the frame due to stress concentration; the 45° design helps to improve the center of gravity distribution and driving posture of the vehicle, reduce bumps and vibrations caused by unreasonable frame structure, thereby improving the driver's comfort and driving safety.

[0027] It also includes a tank support frame 4, which is welded and fixed to the bottom of the rear curved beam 12, and a tank support beam 41 is welded to the top of the rear curved beam 12. The tank support frame 4 and the tank support beam 41 constitute the tank structure of the electric tricycle. The interior of the tank is used to install equipment such as motors and batteries. The tank support frame 4 below allows the tank to extend below the rear curved beam 12, thereby increasing the cab space while ensuring the internal space of the tank.

[0028] In this embodiment, the front curved beam 11 and the rear curved beam 12 are also integrally formed to further improve the overall structural strength of the frame and provide stability guarantee for increasing the cab space design. Figure 4 As shown, the front curved beam 11 and the rear curved beam 12 are both square tubes 5 with the same cross-section, and the ratio of the height to the width of the square tube 5 is 5:7. In this embodiment, the height and width of the square tube 5 are 50 mm and 70 mm respectively, and the thickness is 2.5 mm. The one-piece frame has higher requirements on the structural strength of the square tube 5. Therefore, increasing the width of the square tube 5 and relatively reducing its height can better improve its load-bearing capacity.

[0029] The above is only an embodiment of the utility model, and the common knowledge such as the known specific technical solutions and / or characteristics in the solution is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the technical solution of the utility model, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A vehicle frame for increasing the space of a cab, comprising two sets of front curved beams and rear curved beams, the two sets of front curved beams and rear curved beams being respectively located on both sides of the vehicle frame, characterized in that: The front curved beams include a first horizontal portion and a C-shaped portion, a first cross beam is provided between the tops of the two C-shaped portions, a second cross beam is provided between the bottoms of the two C-shaped portions, a front main beam is obliquely connected between the two first horizontal portions, and the upper end of the front main beam is connected to the first cross beam; the front main beam is bent, and the angle between the upper end of the front main beam and the horizontal plane is 40-50°, the angle between the lower end of the front main beam and the horizontal plane is 60°, and the top of the front main beam is connected to the front mounting column.

2. A vehicle frame for increasing the cab space according to claim 1, characterized in that: The angle between the front mounting column and the vertical direction is 20°.

3. A vehicle frame for increasing the cab space according to claim 2, characterized in that: It also includes a front reinforcement plate, the bottom of which is connected between the two first horizontal parts, the top of which is connected between the upper ends of the two C-shaped parts, and a connecting rod is provided between the front reinforcement plate and the C-shaped part.

4. A vehicle frame for increasing the cab space according to claim 3, characterized in that: A reinforcing crossbeam is provided between the two C-shaped portions, and the reinforcing crossbeam is located between the first crossbeam and the second crossbeam.

5. A vehicle frame for increasing the cab space according to claim 4, characterized in that: The rear curved beams all include an S-shaped portion and a second horizontal portion, the S-shaped portion includes horizontal sections on both sides and an inclined section located between the horizontal sections, the second horizontal portion is parallel to the first horizontal portion, and the angle between the inclined section in the middle of the S-shaped portion and the horizontal plane is 45°.

6. A vehicle frame for increasing the cab space according to claim 5, characterized in that: It also includes a storage tank support frame, which is arranged below the rear curved beam, and the upper part of the rear curved beam is connected with the storage tank support beam.

7. The vehicle frame for increasing the cab space according to claim 1, characterized in that: The front curved beam and the rear curved beam are the same entity; both the front curved beam and the rear curved beam are square tubes, and the ratio of the height to the width of the square tube is 5:7.

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