Keel frame with good stability

Abstract

The utility model discloses a keel frame with good stability, and relates to the technical field of keel frames. A keel frame with good stability comprises a keel side pipe frame, a battery box mounting frame and a tail pipe frame, the tail pipe frame and the battery box mounting frame are both welded to the keel side pipe frame, a keel frame stabilizing structure is located on the keel side pipe frame and comprises a supporting auxiliary beam frame and a supporting main beam, one side of the supporting main beam is welded to the battery box mounting frame, and the other side of the supporting main beam is welded to the battery box mounting frame. The side, away from the battery box mounting frame, of the supporting main beam is welded to the tail pipe frame, and through the two supporting auxiliary beam frames and the two supporting main beams welded to the keel side pipe frame of the keel frame, under supporting of the two triangular frame supporting auxiliary beam frames internally welded with the multiple triangular frame supporting auxiliary beam frames, the stability and the deformation resistance of the keel frame are improved; by means of the design, the structural strength of the keel frame is enhanced, stress can be better dispersed when the keel frame faces external loads, the risks of deformation and damage are reduced, and the riding safety of the electric vehicle is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of keel frames, in particular to a keel frame with good stability. Background Art

[0002] The keel frame of an electric vehicle not only determines the shape and structure of the vehicle, but also bears the vehicle's weight, mechanical stress and vibration load, protecting key components such as the vehicle's internal battery, controller and motor. At the same time, the keel frame also provides electric vehicles with stable driving and good handling, and is an indispensable component of electric vehicles.

[0003] Traditional electric vehicle keels are usually constructed with a single pipe or profile. Although this can meet usage requirements to a certain extent, its stability and load-bearing capacity are often insufficient when facing complex road conditions and external impacts. Especially in extreme situations such as high-speed driving or sharp turns, the keel frame is at high risk of deformation and damage, posing a safety hazard to riders. Therefore, we propose a keel frame with good stability. Utility Model Content

[0004] The purpose of the present utility model is to solve at least one of the technical problems existing in the prior art and to provide a keel frame with good stability, which can solve the problem that the traditional electric vehicle keel frame is usually constructed with a single pipe or profile. Although it can meet the use requirements to a certain extent, its stability and load-bearing capacity are often insufficient when facing complex road conditions and external impacts. Especially in extreme cases such as high-speed driving or sharp turns, the risk of deformation and damage of the keel frame is high, posing a safety hazard to the rider.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a keel frame with good stability, comprising:

[0006] Keel side tube rack, battery box mounting rack and tail tube rack. The tail tube rack and battery box mounting rack are all welded to the keel side tube rack;

[0007] The keel frame stabilizing structure is located on the keel side pipe frame;

[0008] The keel frame stabilizing structure includes a supporting sub-beam frame and a supporting main beam. One side of the supporting main beam is welded to the battery box mounting frame, and the side of the supporting main beam away from the battery box mounting frame is welded to the tail pipe frame. One side of the supporting sub-beam frame is welded to the supporting main beam, and the side of the supporting sub-beam frame away from the supporting main beam is welded to the keel side pipe frame. The supporting sub-beam frame is welded together by multiple different triangular brackets. There are two keel frame stabilizing structures, and the two keel frame stabilizing structures are symmetrically arranged on the keel side pipe frame.

[0009] Preferably, a main beam tube is welded to the keel side tube frame, a head tube is welded to the top end of the main beam tube, and a support tube for easy support is welded at the angle between the main beam tube and the head tube.

[0010] Preferably, a lower head bowl is provided at one end of the head pipe, and an upper head bowl is provided at the end of the head pipe away from the lower head bowl.

[0011] Preferably, two offset support brackets are welded to the bottom of the keel side tube frame, and a seat bucket bracket is welded to the inclined tube of the keel side tube frame.

[0012] Preferably, a lock plate bracket is welded to the top of the tail pipe rack, and a controller mounting plate is welded inside the tail pipe rack.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. The keel frame with good stability is supported by two supporting sub-beams and two supporting main beams welded on the keel side tube frame of the keel frame, thereby improving the stability and deformation resistance of the keel frame. This design not only enhances the structural strength of the keel frame, but also enables it to better disperse stress when facing external loads, reduce the risk of deformation and damage, and further improve the riding safety of electric vehicles. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the supporting main beam structure of the utility model;

[0018] Figure 3 This is a structural schematic diagram of the battery box mounting frame of the present utility model.

[0019] Figure markings: 1. Keel side tube rack; 2. Main beam tube; 3. Support tube; 4. Head tube; 5. Side support bracket; 6. Battery box mounting bracket; 7. Support sub-beam rack; 8. Support main beam; 9. Lock plate bracket; 10. Controller mounting plate; 11. Tail pipe rack; 12. Seat bucket bracket; 13. Lower head bowl; 14. Upper head bowl. DETAILED DESCRIPTION

[0020] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0021] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0022] In the description of this utility model, terms such as "greater than," "less than," and "exceed" are understood to exclude the number indicated, while terms such as "above," "below," and "within" are understood to include the number indicated. The terms "first" and "second" are used solely to distinguish technical features and are not to be construed as indicating or implying relative importance, or as implicitly specifying the number or order of the technical features indicated.

[0023] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0024] See also Figure 1-3 The utility model provides a technical solution: a keel frame with good stability, comprising:

[0025] The keel side tube frame 1, the battery box mounting frame 6 and the tail pipe frame 11, the tail pipe frame 11 and the battery box mounting frame 6 are all welded to the keel side tube frame 1;

[0026] The keel frame stabilizing structure is located on the keel side pipe frame 1;

[0027] The keel frame stabilizing structure includes a supporting sub-beam frame 7 and a supporting main beam 8. One side of the supporting main beam 8 is welded to the battery box mounting frame 6, and the side of the supporting main beam 8 away from the battery box mounting frame 6 is welded to the tail pipe frame 11. One side of the supporting sub-beam frame 7 is welded to the supporting main beam 8, and the side of the supporting sub-beam frame 7 away from the supporting main beam 8 is welded to the keel side pipe frame 1. The supporting sub-beam frame 7 is welded from multiple different triangular brackets. There are two keel frame stabilizing structures, and the two keel frame stabilizing structures are symmetrically arranged on the keel side pipe frame 1.

[0028] A main beam tube 2 is welded to the keel side tube frame 1, a head tube 4 is welded to the top of the main beam tube 2, a support tube 3 for easy support is welded at the angle between the main beam tube 2 and the head tube 4, a lower head bowl 13 is provided at one end of the head tube 4, and an upper head bowl 14 is provided at the end of the head tube 4 away from the lower head bowl 13.

[0029] Two offset support brackets 5 are welded to the bottom of the keel side tube frame 1, a seat bucket bracket 12 is welded to the inclined tube of the keel side tube frame 1, a lock plate bracket 9 is welded to the top of the tail tube frame 11, and a controller mounting plate 10 is welded inside the tail tube frame 11.

[0030] By welding two supporting sub-beams 7 and two supporting main beams 8 on the keel side tube frame 1 of the keel frame, the stability and deformation resistance of the keel frame are improved with the support of two internally welded multiple tripod supporting sub-beams 7. This design not only enhances the structural strength of the keel frame, but also enables it to better disperse stress when facing external loads, reduce the risk of deformation and damage, and further improve the riding safety of electric vehicles.

[0031] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A keel frame with good stability, characterized in that: include: The keel side tube frame (1), the battery box mounting frame (6) and the tail tube frame (11) are welded to the keel side tube frame (1); A keel frame stabilizing structure, the keel frame stabilizing structure being located on the keel side pipe frame (1); The keel frame stabilizing structure includes a supporting sub-beam frame (7) and a supporting main beam (8), one side of the supporting main beam (8) is welded to the battery box mounting frame (6), the side of the supporting main beam (8) away from the battery box mounting frame (6) is welded to the tail pipe frame (11), one side of the supporting sub-beam frame (7) is welded to the supporting main beam (8), and the side of the supporting sub-beam frame (7) away from the supporting main beam (8) is welded to the keel side pipe frame (1); The supporting sub-beam frame (7) is formed by welding a plurality of different triangular brackets, and the number of keel frame stabilizing structures is two, and the two keel frame stabilizing structures are symmetrically arranged on the keel side pipe frame (1).

2. A keel frame with good stability according to claim 1, characterized in that: A main beam tube (2) is welded to the keel side tube frame (1), a head tube (4) is welded to the top end of the main beam tube (2), and a support tube (3) for easy support is welded at the angle between the main beam tube (2) and the head tube (4).

3. A keel frame with good stability according to claim 2, characterized in that: One end of the head tube (4) is provided with a lower head bowl (13), and one end of the head tube (4) away from the lower head bowl (13) is provided with an upper head bowl (14).

4. The keel frame with good stability according to claim 1, characterized in that: Two offset support brackets (5) are welded to the bottom of the keel side tube frame (1), and a seat bucket bracket (12) is welded to the inclined tube of the keel side tube frame (1).

5. The keel frame with good stability according to claim 1, characterized in that: A locking plate bracket (9) is welded to the top of the tail pipe frame (11), and a controller mounting plate (10) is welded inside the tail pipe frame (11).

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