Frame integrated with motor hanging bracket seat

Abstract

The utility model relates to a frame integrated with a motor hanging bracket seat, which comprises a hanging bracket seat, a frame lower pipe, a middle pipe and a lower fork pipe, the upper end of the middle pipe is respectively connected with the frame lower pipe and the lower fork pipe through pipe fittings, and the upper part of the hanging bracket seat is sequentially provided with an extension support column A, an extension support column B and a connecting branch at intervals. And the lower ends of the frame lower pipe, the middle pipe and the lower fork pipe are respectively welded and fixed with the extension support column A, the extension support column B and the connecting branch. The frame structure is redesigned according to the welding process, and the extending supporting column A, the extending supporting column B and the connecting branch are designed on the hanging bracket seat, so that when other pipe fittings are welded with the hanging bracket seat, the welding bead position can be expanded outwards, special-shaped welding is reduced, the welding difficulty is reduced, and the welding thermal corrosion deformation is reduced; meanwhile, the welding bead position is expanded, the welding bead of the hanging bracket seat and the pipe fitting is more regular, a mechanical arm can be connected for welding in batch production, and the labor cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of bicycle frame structures, and more specifically, to a frame integrating a motor hanger seat. Background Art

[0002] Due to the trend of electrification surging into bicycle traffic, the market for electric-assisted bicycles is extremely hot in the current European and American markets. Compared with ordinary bicycles, electric-assisted bicycles have a several-fold increase in self-weight due to the addition of a series of electrical components such as batteries and motors. Coupled with a faster travel speed, it poses a greater challenge to the structural strength of the bicycle frame.

[0003] In the existing traditional technical structure, a metal bicycle frame is formed by splicing five types of tubes together, that is, through tube material arc punching, milling holes, and welding and forming on the surface of the tube materials under the support of an assembly mold; in the traditional welding structure, at the connection part of the tube materials, it only acts on the object surface, which actually brings two problems:

[0004] 1. Welding is to melt two adjacent metal parts and join them together. However, in traditional tube material welding, since it only acts on the axial surface part and cannot connect with each other in the radial part of the tube material, its ability to cope with the radial impact force of sports equipment is relatively weak;

[0005] 2. After steps such as arc punching of the tube materials, the formed connection part is usually an irregular joint surface, and usually there are situations such as overlap between the tube materials. Usually, a robotic arm cannot participate in welding. In the surface treatment of the weld bead (grinding the weld bead flat + filling), it will greatly increase the processing difficulty and increase the labor cost expenditure. Summary of the Utility Model

[0006] In order to solve the above technical problems, the purpose of the utility model is to provide a frame integrating a motor hanger seat, which is convenient to process, has high strength and low cost.

[0007] In order to achieve the above utility model purpose, the utility model adopts the following technical solutions:

[0008] A frame integrating a motor hanger seat, comprising a hanger seat, a lower frame tube, a middle tube and a lower fork tube. The upper end of the middle tube is respectively connected to the lower frame tube and the lower fork tube through pipe fittings. The upper part of the hanger seat is successively and spacedly provided with an extension strut A, an extension strut B and a connecting branch. The lower ends of the lower frame tube, the middle tube and the lower fork tube are respectively welded and fixed to the extension strut A, the extension strut B and the connecting branch.

[0009] As a preferred solution: The hanger seat, the extension strut A, the extension strut B and the connecting branch are integrally formed.

[0010] As a preferred solution: a convex edge is further provided at the top of the extension strut A, the lower tube of the frame is sleeved on the convex edge, and a welding gap is left between the top of the extension strut A and the lower tube of the frame.

[0011] As a preferred solution: a stepped surface is formed between the convex edge and the top of the extension strut A, and a plurality of limiting grains are arranged at intervals on the stepped surface, and the limiting grains abut against the lower tube of the frame.

[0012] As a preferred solution: a convex edge is further provided at the top of the extension strut B, the middle tube is sleeved on the convex edge, and a welding gap is left between the top of the extension strut B and the middle tube.

[0013] As a preferred solution: a stepped surface is formed between the convex edge and the top of the extension strut B, and a plurality of limiting grains are arranged at intervals on the stepped surface, and the limiting grains abut against the middle tube.

[0014] As a preferred solution: the two connecting branches are arranged at intervals, a convex edge is further provided at the top of the connecting branch, the lower fork tube is sleeved on the convex edge, and a welding gap is left between the top of the connecting branch and the lower fork tube.

[0015] As a preferred solution: a stepped surface is formed between the convex edge and the top of the connecting branch, and a plurality of limiting grains are arranged at intervals on the stepped surface, and the limiting grains abut against the connecting branch.

[0016] As a preferred solution: a charging and discharging seat mounting opening is further provided on the side wall of the extension strut B on the hanger seat.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0018] The present utility model redesigns the frame structure for the welding process. By designing the extension strut A, the extension strut B and the connecting branch on the hanger seat, when other pipe fittings are welded to the hanger seat, the position of the weld bead can be expanded outwards, reducing special-shaped welding, reducing the welding difficulty, and reducing the amount of welding heat erosion deformation; at the same time, due to the outward expansion of the weld bead position, the weld bead between the hanger seat and the pipe fitting is more regular, and robotic arm welding can be accessed during mass production, reducing labor costs. Description of the Drawings

[0019] The specification drawings forming a part of this application are used to provide a further understanding of this application. The schematic embodiments of this application and their descriptions are used to explain this application and do not constitute a limitation to this application.

[0020] Figure 1 is the overall structural schematic diagram of the present utility model;

[0021] Figure 2 is the structural schematic diagram of the hanger seat of the present utility model.

[0022] The reference numerals are: 1, hanger seat; 11, extension strut A; 12, extension strut B; 13, connecting branch; 14, limiting particle; 15, convex edge; 16, charging and discharging seat mounting opening; 2, lower tube of the vehicle frame; 3, middle tube; 4, lower fork tube. Detailed implementation mode

[0023] It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs.

[0024] It should be noted that the terms used herein are only for describing the specific implementation mode and are not intended to limit the exemplary implementation mode according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0025] In addition, in the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention.

[0026] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "plurality" is two or more, unless otherwise clearly defined.

[0027] In the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] In the present utility model, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on the top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under" and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is lower than that of the second feature.

[0029] The present utility model will be further described below in conjunction with the accompanying drawings and embodiments:

[0030] As Figure 1 and Figure 2 shown, a vehicle frame with an integrated motor hanger seat includes a hanger seat 1, a lower tube 2 of the vehicle frame, a middle tube 3 and a lower fork tube 4. The upper end of the middle tube 3 is respectively connected to the lower tube 2 of the vehicle frame and the lower fork tube 4 through pipe fittings. The upper part of the hanger seat 1 is successively and spacedly provided with an extension strut A11, an extension strut B12 and a connection trunk 13. The lower ends of the lower tube 2 of the vehicle frame, the middle tube 3 and the lower fork tube 4 are respectively welded and fixed to the extension strut A11, the extension strut B12 and the connection trunk 13. The hanger seat 1, the extension strut A11, the extension strut B12 and the connection trunk 13 are integrally formed, and the overall strength is high.

[0031] Due to the addition of the extension strut A11, the extension strut B12 and the connection trunk 13 on the hanger seat in the present utility model, the vehicle frame has greater advantages than the traditional hanger in terms of the feasibility degree of welding mechanization and the structural strength.

[0032] The specific structure of the hanger seat in this application is as Figure 2 shown. A flange 15 is further provided at the top of the extension strut A11. The lower tube 2 of the vehicle frame is sleeved on the flange 15, and a welding gap is left with the top of the extension strut A11. The flange 15 and the top of the extension strut A11 form a stepped surface, and a plurality of limiting grains 14 are spacedly provided on the stepped surface. The limiting grains 14 abut against the lower tube 2 of the vehicle frame.

[0033] A flange 15 is further provided at the top of the extension strut B12. The middle tube 3 is sleeved on the flange 15, and a welding gap is left with the top of the extension strut B12. The flange 15 and the top of the extension strut B12 form a stepped surface, and a plurality of limiting grains 14 are spacedly provided on the stepped surface. The limiting grains 14 abut against the middle tube 3. A charging and discharging seat mounting opening 16 is further provided on the side wall of the extension strut B12 on the hanger seat 1, and the overall function is more abundant.

[0034] The two connecting branches 13 are arranged at intervals, and a convex edge 15 is further provided at the top of the connecting branch 13. The lower fork tube 4 is sleeved on the convex edge 15, and a welding gap is left between the lower fork tube 4 and the top of the connecting branch 13. The convex edge 15 and the top of the connecting branch 13 form a stepped surface, and a plurality of limiting grains 14 are arranged at intervals on the stepped surface, and the limiting grains 14 abut against the connecting branch 13.

[0035] During production, the extension strut A11, the extension strut B12 on the hanger seat and the stepped structure of the connecting branch 13 are inserted into the corresponding lower frame tube 2, the middle tube 3 and the lower fork tube 4 of the frame. After insertion, the limiting grains can still leave a step between the hanger seat and the tube material for the welding torch to penetrate for welding. This design can reduce the development of the frame assembly mold during subsequent frame assembly, effectively reducing costs. At the same time, the stepped insertion into the tube material increases the radial welding connection, which can greatly enhance the strength.

[0036] The structure of the above hanger seat enhances the radial strength of the frame and the fit between the pipe fittings; at the same time, the limiting grain structure at the convex edge in the present invention is smaller, the number of subsequent CNC machining times is smaller, and within the same stepped area, the welding space of the present invention is wider and larger, and the structural strength is stronger than that of market products.

[0037] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0038] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention without departing from the principle and purpose of the present invention. Any simple modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A vehicle frame integrated with a motor hanger seat, comprising a hanger seat (1), a lower tube (2) of the vehicle frame, a middle tube (3) and a lower fork tube (4), wherein the upper end of the middle tube (3) is respectively connected to the lower tube (2) of the vehicle frame and the lower fork tube (4) through pipe fittings, and is characterized in that: The upper part of the hanger seat (1) is successively and spacedly provided with an extension strut A (11), an extension strut B (12) and a connecting branch (13). The lower ends of the frame down tube (2), the middle tube (3) and the lower fork tube (4) are respectively welded and fixed to the extension strut A (11), the extension strut B (12) and the connecting branch (13).

2. The vehicle frame with an integrated motor hanger seat according to claim 1, characterized in that: The hanger seat (1), the extension strut A (11), the extension strut B (12) and the connecting branch (13) are integrally formed.

3. The vehicle frame with an integrated motor hanger seat according to claim 1, characterized in that: The top of the extension strut A (11) is further provided with a flange (15). The frame down tube (2) is sleeved on the flange (15), and there is a welding gap left with the top of the extension strut A (11).

4. A vehicle frame with an integrated motor hanger seat according to claim 3, characterized in that: The flange (15) and the top of the extension strut A (11) form a stepped surface. A plurality of limiting grains (14) are spacedly arranged on the stepped surface, and the limiting grains (14) abut against the frame down tube (2).

5. The vehicle frame with an integrated motor hanger seat according to claim 1, characterized in that: The top of the extension strut B (12) is further provided with a flange (15). The middle tube (3) is sleeved on the flange (15), and there is a welding gap left with the top of the extension strut B (12).

6. The vehicle frame with an integrated motor hanger seat according to claim 5, characterized in that: The flange (15) and the top of the extension strut B (12) form a stepped surface. A plurality of limiting grains (14) are spacedly arranged on the stepped surface, and the limiting grains (14) abut against the middle tube (3).

7. A vehicle frame with an integrated motor hanger seat according to claim 1, characterized in that: Two connecting branches (13) are spacedly arranged. The top of the connecting branch (13) is further provided with a flange (15). The lower fork tube (4) is sleeved on the flange (15), and there is a welding gap left with the top of the connecting branch (13).

8. A vehicle frame with an integrated motor hanger seat according to claim 7, characterized in that: The flange (15) and the top of the connecting branch (13) form a stepped surface. A plurality of limiting grains (14) are spacedly arranged on the stepped surface, and the limiting grains (14) abut against the connecting branch (13).

9. The vehicle frame with an integrated motor hanger seat according to claim 1, characterized in that: The side wall of the extension strut B (12) on the hanger seat (1) is further provided with a charging and discharging seat mounting port (16).

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