Front wheel package welding-free structure

Abstract

The utility model discloses a front wheel package welding-free structure, and relates to the technical field of tricycle parts. Comprising a front wheel bag upper portion, a front wheel bag lower portion and a front face metal plate, a plurality of concave table through holes are formed in a circle of the bottom of the front wheel bag upper portion, a circle of inner curled edge is arranged on one side of the front wheel bag lower portion, a butt joint hole is formed in the top of the other side of the front wheel bag lower portion, and a plurality of first fixing studs are arranged in a circle of the inner curled edge. Compared with a front wheel package structure fixed by welding in the prior art, the front wheel package upper part, the front wheel package lower part and the front face metal plate can be combined and fixed only through self-tapping screws by arranging the concave table through hole, the fixing stud I, the fixing stud II and the fixing hole; and finally, the combined front wheel package upper part, the front wheel package lower part and the front face metal plate are fixedly connected with the bottom frame through self drilling screws, welding equipment and welding tool molds do not need to be used, pollution is reduced, the installation efficiency is guaranteed, later maintenance and replacement operation are more convenient, and use is safer.

Description

Technical Field

[0001] The utility model relates to the technical field of tricycle parts, and particularly relates to a front wheel cover welding-free structure. Background Art

[0002] An electric tricycle is a three-wheel transport vehicle powered by a battery and driven by a motor for pulling goods or people. The electric tricycle adopts a tubular large-capacity, left and right liners, deep-discharge, traction-type battery, which can meet the requirements of continuous discharge for long-term work. The battery can be used normally for two years without reducing the internal capacity.

[0003] At present, the combination of the front wheel cover and the vehicle body of a tricycle has only one connection method, namely welding combination. Assembly requires combination through welding tooling and molds, which is time-consuming and laborious, not easy to overhaul and replace later, and the welding equipment pollutes the environment, there are certain safety hazards, and the use effect is not ideal. Content of the Utility Model

[0004] The utility model provides a front wheel cover welding-free structure to solve the problems in the background art.

[0005] To achieve the above object, the utility model provides the following technical solution: A front wheel cover welding-free structure includes an upper front wheel cover, a lower front wheel cover, and a front face sheet metal. A plurality of concave platform through holes are arranged in a circle at the bottom of the upper front wheel cover. One side of the lower front wheel cover is provided with a circle of inward curling edges, and the other side is provided with butt holes at the top. A plurality of fixing studs one are arranged inside the circle of the inward curling edges. A plurality of fixing studs two corresponding to the plurality of concave platform through holes one by one are arranged in a circle of the butt holes. The bottom of the front face sheet metal is provided with a circle of inner concave edges sleeved with the inward curling edges, and a plurality of fixing holes corresponding to the plurality of fixing studs one by one are arranged in a circle of the inner concave edges.

[0006] Specifically, one end of the fixing stud two extends into the concave platform through hole, and the fixing stud two and the concave platform through hole are fixed by a self-tapping screw. The fixing stud one and the fixing hole are fixed by a self-tapping screw.

[0007] Specifically, the bottom of the upper front wheel cover is provided with a circle of butt edge fitting the circle of the butt holes, and the plurality of concave platform through holes are arranged on the butt edge.

[0008] Specifically, a triangular rib plate one is arranged outside the fixing stud one, and a triangular rib plate two is arranged outside the fixing stud two.

[0009] Specifically, a plurality of support rib plates are arranged inside the circle of the inward curling edges, and the support rib plates are U-shaped.

[0010] Specifically, it further includes a chassis, and the chassis includes columns and a support plate arranged at the bottom of the columns.

[0011] Specifically, a bottom plate is provided at the bottom under the front wheel housing. The bottom plate is located below the support plate, and the bottom plate and the support plate are fixed by self-drilling screws.

[0012] Specifically, two limiting frames and a positioning hole located between the two limiting frames are provided on one side of the front wheel housing away from the inner curling edge. The two limiting frames are located on both sides of the column, and the positioning hole and the column are fixed by self-drilling screws.

[0013] Compared with the prior art, the present utility model provides a front wheel housing structure without welding, having the following

[0014] Beneficial effects:

[0015] For the front wheel housing structure without welding, compared with the front wheel housing structure fixed by welding in the prior art, by providing a concave platform through hole, a fixing stud one, a fixing stud two and a fixing hole, the combination and fixation of the upper front wheel housing, the lower front wheel housing and the front face sheet metal can be completed only by self-tapping screws. Finally, the combined upper front wheel housing, lower front wheel housing and front face sheet metal are connected and fixed to the chassis by self-drilling screws, without the need to use welding equipment and welding tooling molds, reducing pollution, ensuring the installation efficiency, making the later maintenance and replacement operations more convenient, and being safer to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the present utility model;

[0017] Figure 2 is a side view of the structure of the present utility model;

[0018] Figure 3 is an exploded view of the structure of the present utility model;

[0019] Figure 4 is Figure 3 an enlarged view of the structure at A in

[0020] Figure 5 is an exploded view of the structure of the present utility model;

[0021] Figure 6 is Figure 5 an enlarged view of the structure at A in

[0022] Figure 7 is Figure 5 an enlarged view of the structure at B in

[0023] In the figure: 1. Upper front wheel housing; 11. Docking edge; 12. Concave through hole; 2. Lower front wheel housing; 21. Inner curled edge; 22. Docking hole; 23. First fixing stud; 231. First triangular rib plate; 24. Second fixing stud; 241. Second triangular rib plate; 25. Support rib plate; 26. Bottom plate; 27. Limiting frame; 28. Positioning hole; 3. Front face sheet metal; 31. Inner concave edge; 32. Fixing hole; 4. Underframe; 41. Column; 42. Support plate. Detailed implementation mode

[0024] In order to understand the features and technical content of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are only for reference and explanation, and are not used to limit the embodiments of the present disclosure. In the following technical description, for the sake of explanation, multiple details are provided to provide a full understanding of the disclosed embodiments. However, one or more embodiments can still be implemented without these details. In other cases, well-known structures and devices can be shown in a simplified manner to simplify the drawings.

[0025] In the embodiments of the present disclosure, terms such as "first" and "second" in the specification, claims and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so as to implement the embodiments of the present disclosure described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion.

[0026] In the embodiments of the present disclosure, the orientation or positional relationship indicated by terms such as "upper", "lower", "inner", "middle", "outer", "front", "rear", etc. is based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the embodiments of the present disclosure and their embodiments, and are not used to limit that the indicated devices, elements or components must have a specific orientation or be constructed and operated in a specific orientation. And, in addition to being able to represent an orientation or positional relationship, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0027] In addition, the terms "set", "connect" and "fix" should be understood in a broad sense. For example, "connect" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or there is internal communication between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0028] Unless otherwise specified, the term "a plurality of" means two or more.

[0029] It should be noted that, without conflict, the embodiments in the present disclosure and the features in the embodiments can be combined with each other.

[0030] Please refer to Figures 1-7 , the present utility model discloses a front wheel arch non-welding structure, which includes an upper front wheel arch 1, a lower front wheel arch 2 and a front face sheet metal 3. A plurality of concave platform through holes 12 are arranged on the bottom circumference of the upper front wheel arch 1. One side of the lower front wheel arch 2 is provided with an inner curling edge 21, and the other side is provided with a docking hole 22 at the top. A plurality of fixing studs one 23 are arranged inside the inner curling edge 21 in a circle. A plurality of fixing studs two 24 corresponding to the plurality of concave platform through holes 12 one by one are arranged in a circle of the docking hole 22. The bottom of the front face sheet metal 3 is provided with an inner concave edge 31 sleeved with the inner curling edge 21, and a plurality of fixing holes 32 corresponding to the plurality of fixing studs one 23 one by one are arranged in a circle of the inner concave edge 31.

[0031] Specifically, one end of the fixing stud two 24 extends into the concave platform through hole 12, and the fixing stud two 24 and the concave platform through hole 12 are fixed by self-tapping screws. The fixing stud one 23 and the fixing hole 32 are fixed by self-tapping screws. When in use, first fix the upper front wheel arch 1 and the lower front wheel arch 2 together by self-tapping screws, then fix the combined lower front wheel arch 2 and the front face sheet metal 3 by self-tapping screws, and finally fix the combined lower front wheel arch 2 and the chassis 4 by self-drilling screws.

[0032] Specifically, the bottom of the upper front wheel arch 1 is provided with a docking edge 11 that fits with the circumference of the docking hole 22. The plurality of concave platform through holes 12 are arranged on the docking edge 11, and the circumference of the docking hole 22 is nested inside the docking edge. Refer to Figure 2 and Figure 3 , this design method makes the inner wall of the lower front wheel arch 2 and the inner wall of the upper front wheel arch 1 transition more smoothly, more beautiful, and not easy to hide dust.

[0033] Specifically, a triangular rib plate one 231 is arranged outside the fixing stud one 23, and a triangular rib plate two 241 is arranged outside the fixing stud two 24. The arrangement of the triangular rib plate one 231 and the triangular rib plate two 241 ensures the structural strength of the fixing stud one 23 and the fixing stud two 24 and improves the stability.

[0034] Specifically, a plurality of support rib plates 25 are arranged inside the inner curling edge 21 in a circle. The support rib plates 25 are U-shaped. The arrangement of the support rib plates 25 ensures the integrity of the inner circle of the inner curling edge 21, supports the inner curling edge 21, and ensures the fitting effect between the inner curling edge 21 and the inner concave edge 31.

[0035] Specifically, it further includes a chassis 4. The chassis 4 includes columns 41 and a support plate 42 arranged at the bottom of the columns 41. A bottom plate 26 is arranged in a circle at the bottom of the lower front wheel housing 2. The bottom plate 26 is located below the support plate 42. The bottom plate 26 and the support plate 42 are fixed by self-drilling screws. Two limit frames 27 and a positioning hole 28 located between the two limit frames 27 are arranged on one side of the lower front wheel housing 2 away from the inner curling edge 21. The two limit frames 27 are located on both sides of the column 41. The positioning hole 28 and the column 41 are fixed by self-drilling screws. The chassis 4 and the lower front wheel housing 2 are fixedly connected by self-drilling screws without using welding for fixation. The two limit frames 27 can stably hold the column 41, avoiding relative displacement between the column 41 and the upper front wheel housing 1 and the lower front wheel housing 2, and making the use more stable.

[0036] In summary, for this front wheel housing structure without welding, compared with the front wheel housing structure fixed by welding in the prior art, by setting the concave platform through hole 12, the first fixing stud 23, the second fixing stud 24 and the fixing hole 32, the combination and fixation of the upper front wheel housing 1, the lower front wheel housing 2 and the front face sheet metal 3 can be completed only by self-tapping screws. Finally, the combined upper front wheel housing 1, the lower front wheel housing 2 and the front face sheet metal 3 are connected and fixed to the chassis 4 by self-drilling screws. There is no need to use welding equipment and welding tooling molds, reducing pollution, ensuring the installation efficiency, making the later maintenance and replacement operations more convenient, and making the use safer.

[0037] The above description and drawings fully illustrate the embodiments of the present disclosure so that those skilled in the art can practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless explicitly required, the individual components and functions are optional, and the order of operations may vary. Parts and features of some embodiments may be included in or substituted for parts and features of other embodiments. The embodiments of the present disclosure are not limited to the structures already described and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present disclosure is only limited by the appended claims.

Claims

1. A front wheel arch welding-free structure, comprising an upper front wheel arch (1), a lower front wheel arch (2) and a front face sheet metal (3), characterized in that: A number of concave through-holes (12) are provided on the bottom circumference of the upper front wheel housing (1). One side of the lower front wheel housing (2) is provided with a circumferential inward curling edge (21), and the top of the other side is provided with a docking hole (22). A number of first fixing studs (23) are provided inside the circumferential inward curling edge (21). A number of second fixing studs (24) corresponding one-to-one to the number of concave through-holes (12) are provided on the circumference of the docking hole (22). The bottom of the front face sheet metal (3) is provided with a circumferential inward concave edge (31) sleeved with the inward curling edge (21). A number of fixing holes (32) corresponding one-to-one to the number of first fixing studs (23) are provided on the circumference of the inward concave edge (31).

2. The front wheel housing non-welding structure according to claim 1, wherein: One end of the second fixing stud (24) extends into the interior of the concave through-hole (12), and the second fixing stud (24) and the concave through-hole (12) are fixed by self-tapping screws. The first fixing stud (23) and the fixing hole (32) are fixed by self-tapping screws.

3. A front wheel arch welding-free structure according to claim 1, characterized in that: The bottom of the upper front wheel housing (1) is provided with a circumferential docking edge (11) that fits with the circumference of the docking hole (22). The number of concave through-holes (12) is provided on the docking edge (11).

4. The front wheel housing free-welding structure according to claim 1, characterized in that: A first triangular rib plate (231) is provided on the outside of the first fixing stud (23). A second triangular rib plate (241) is provided on the outside of the second fixing stud (24).

5. A front wheel arch non-welded structure according to claim 1, characterized in that: A number of support rib plates (25) are provided inside the circumferential inward curling edge (21). The support rib plates (25) are U-shaped.

6. The front wheel housing free-welding structure according to claim 1, characterized in that: It further includes a chassis (4). The chassis (4) includes columns (41) and a support plate (42) provided at the bottom of the columns (41).

7. A front wheel arch non-welding structure according to claim 6, characterized in that: The bottom of the lower front wheel housing (2) is provided with a circumferential bottom plate (26). The bottom plate (26) is located below the support plate (42). The bottom plate (26) and the support plate (42) are fixed by self-drilling screws.

8. The front wheel arch free-welding structure according to claim 6, characterized in that: Two limiting frames (27) and a positioning hole (28) located between the two limiting frames (27) are provided on one side of the lower front wheel housing (2) away from the inward curling edge (21). The two limiting frames (27) are located on both sides of the column (41). The positioning hole (28) and the column (41) are fixed by self-drilling screws.

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