Integrated special-shaped frame structure with high strength characteristics

Abstract

The utility model discloses an integrated special-shaped frame structure with high-strength characteristics, including the load-bearing frame assembly of frame main body assembly, load-bearing frame assembly includes special-shaped load-bearing frame main body, the overall profile of special-shaped load-bearing frame main body is "V" shape, the top of special-shaped load-bearing frame main body is equipped with an assembly baffle, and the "V" shape profile of assembly baffle and special-shaped load-bearing frame main body matches, and the upper surface of assembly baffle is fixed with the cushion, and the bottom shape of cushion is attached with the recessed profile of assembly baffle. The utility model solves the problem of the low safety and heavy weight of the existing technology in the scooter frame structure complex.

Description

Technical Field

[0001] This utility model relates to the field of bicycle structure, and in particular to an integrated irregular-shaped frame structure with high strength characteristics. Background Technology

[0002] Existing rickshaws and semi-motorized bicycles are typically assembled from traditional components such as top tube, bottom tube, seat tube, head tube, rear upper fork, and rear lower fork. A column extends upward from the intersection of the top tube and the seat tube at the rear, and then a seat is mounted on top of the column.

[0003] However, this type of traditional flat top tube and matching seat structure is not ergonomic, has poor load-bearing capacity, and because the seat is not protected, the upright underneath can easily penetrate and cause injury to the human body when subjected to heavy sitting or sitting conditions.

[0004] In view of this, this technical solution proposes an integrated irregular frame structure with high strength characteristics. It adopts an irregular load-bearing frame and eliminates multiple tubes and columns to ensure ergonomics and lighter weight. While ensuring high load-bearing performance, it reduces assembly difficulty and overall structural complexity. Utility Model Content

[0005] The present invention aims to at least partially solve one of the technical problems in the related art. Therefore, the main objective of this invention is to provide an integrated irregular-shaped frame structure with high strength characteristics, aiming to solve the problems of complex frame structure, low safety, and heavy weight of existing electric bicycles.

[0006] To achieve the above objectives, this utility model provides an integrated irregular-shaped vehicle frame structure with high strength characteristics, including a load-bearing frame assembly assembled with the main body of the vehicle frame. The main body of the frame includes a steering column sleeve and a connecting rod extending obliquely downward from the lower part of the steering column sleeve to one side. The other end of the connecting rod is connected to one side of a vertically mounted main support rod, and the other side of the bottom of the main support rod is connected to one end of a rear support frame. A shock absorber is provided on the top of the rear support frame. The load-bearing frame assembly includes an irregularly shaped load-bearing frame body. The overall outline of the irregularly shaped load-bearing frame body is "V" shaped. A horizontally placed flat-head fixing part extends from one end of the irregularly shaped load-bearing frame body. The flat-head fixing part has a columnar structure. The "V" shaped portion of the irregularly shaped load-bearing frame body opens upward. The other end of the flat-head fixing part is connected to the steering column sleeve and remains on the same side as the connecting rod on the steering column sleeve. The bottom of the irregularly shaped load-bearing frame body is a recessed portion. The recessed portion has a through hole for the head of the main support rod below to pass through. The other side, near the bottom of the recessed portion, is connected to one end of the shock absorber. An assembly baffle is provided above the main body of the irregular-shaped load-bearing frame. The assembly baffle matches the "V" shape of the main body of the irregular-shaped load-bearing frame. The assembly baffle is fixed by a fixing member at the bottom and a fixing hole in the main body of the irregular-shaped load-bearing frame. The head of the main support rod abuts against the bottom of the assembly baffle. A cushion is fixed on the upper surface of the assembly baffle. The bottom shape of the cushion fits the concave contour of the assembly baffle.

[0007] As a further improvement of this utility model, both the main body of the irregular-shaped load-bearing frame and the assembly baffle are integral composite welded structures.

[0008] As a further embodiment of this utility model, the bottom edge of the assembly baffle is rolled, and the edge of the "V"-shaped opening of the irregular load-bearing frame body is formed into a frame edge that cooperates with and is fixed to the rolled edge.

[0009] As a further embodiment of this utility model, the bottom surface of the mounting baffle protrudes upward to form a protrusion, and the bottom surface of the cushion forms a limiting groove corresponding to the protrusion.

[0010] As a further embodiment of this utility model, a fixing piece is provided on the main body of the irregularly shaped load-bearing frame, near the opening on one side of the flat-head fixing part, for fixing one end of the assembly baffle after insertion.

[0011] As a further improvement of this utility model, a horizontally placed "U-shaped" spring is provided in the main body of the irregularly shaped load-bearing frame, located outside the through hole.

[0012] As a further improvement of this utility model, the bottom of the assembly baffle is provided with reinforcing ribs.

[0013] The beneficial effects of this utility model are as follows: This solution combines a V-shaped, irregularly shaped load-bearing frame with a matching assembly baffle. The main support rod passes through a through-hole at the bottom of the frame and directly abuts against the baffle. Simultaneously, a flat-head fixing part connects to the steering column sleeve, and the bottom of the frame connects to the shock absorber, forming a stable triangular support structure. This simplifies the frame structure, reduces the number of traditional tubing and pillars, achieves overall weight reduction, and lowers assembly complexity. Its V-shaped structure is more ergonomic, providing more comfortable seat support. Furthermore, the main support rod is confined between the through-hole and the baffle, effectively eliminating the safety hazard of upward thrust and significantly improving safety under load. Ultimately, this solution successfully solves the problems of complex, heavy, and unsafe traditional frame structures while ensuring high strength and stability. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the technical solutions of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the main frame structure of the vehicle in this utility model, showing its initial disassembly from the vehicle.

[0016] Figure 2 This is a schematic diagram of the overall assembly of the vehicle frame body and the vehicle in this utility model.

[0017] Figure 3 This is a schematic diagram of the frame body and load-bearing frame components in this utility model.

[0018] Figure 4 This is a schematic diagram of the disassembled structure of the main frame of the present invention.

[0019] Figure 5 This is a bottom view diagram of the disassembled frame body of this utility model.

[0020] Figure 6 This is a schematic diagram of the planar shape of one side of the main body of the irregularly shaped load-bearing frame in this utility model.

[0021] Figure 7 This is a schematic diagram showing the arrangement of various components on the main body of the irregularly shaped load-bearing frame in this utility model.

[0022] 1 frame body 203 Through hole 10 Steering column sleeve 204 shrapnel 11 link 205 Frame edge 12 Main strut 206 Fixing hole 13 shock absorbers 21 Assembly baffle 14 Rear support frame 210 Reinforcing ribs 2 load-bearing frame components 211 crimping 20 Irregularly shaped load-bearing frame main body 212 Protrusion 200 Flat head fixing part 213 Fasteners 201 Depression 3 cushion 202 Fixing plate 30 Limiting groove Detailed Implementation

[0023] 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 a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] The term "one embodiment" or "implementation" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of this utility model. In the description of this utility model, it should be understood that the terms "upper," "lower," "left," "right," "top," "bottom," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" and "second" may explicitly or implicitly include one or more of that feature. Moreover, the terms "first," "second," etc., are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this utility model described herein can be implemented in orders other than those illustrated or described herein.

[0025] Please see the appendix Figure 1-7 , This solution relates to an integrated irregular frame structure with high strength characteristics. The frame body (1) includes a steering column sleeve (10) and a connecting rod (11) extending obliquely downward from the steering column sleeve (10) to one side. The other end of the connecting rod (11) is connected to one side of a vertically arranged main support rod (12). The other side of the bottom of the main support rod (12) is connected to one end of a rear support frame (14). A shock absorber (13) is provided on the top of the rear support frame (14). The load-bearing frame assembly (2) includes a non-circular load-bearing frame body (20), the overall outline of which is "V" shaped, with one end extending out to a horizontally placed flat-head fixing part (200). The flat-head fixing part (200) has a columnar structure and is connected to the steering column sleeve (10), and remains on the same side of the steering column sleeve (10) as the connecting rod (11). The "V" shaped part of the non-circular load-bearing frame body (20) opens upward, and the bottom is a recessed part (201). The recessed part (201) has a through hole (203), and the head of the main support rod (12) passes through the through hole (203) from below. An assembly baffle (21) is provided above the main body (20) of the irregular-shaped load-bearing frame. The assembly baffle (21) matches the "V"-shaped contour of the main body (20) of the irregular-shaped load-bearing frame and is fixed by a fixing member (213) provided at the bottom and a fixing hole (206) provided in the main body (20) of the irregular-shaped load-bearing frame. The head of the main support rod (12) abuts against the bottom of the assembly baffle (21) to prevent the main support rod (12) from being pushed upward. A cushion (3) is fixed on the upper surface of the assembly baffle (21). The bottom shape of the cushion (3) fits the concave contour of the assembly baffle (21). At the same time, the main body (20) of the irregular-shaped load-bearing frame is connected to one end of the shock absorber (13) on the other side near the bottom of the recess (201), thereby forming a stable triangular support structure.

[0026] Specifically, the main body (20) of the irregular load-bearing frame of this solution adopts an integrated "V" shaped structure, which matches the contour of the assembly baffle (21) and the seat (3), making the overall structure more compact and lightweight, reducing the use of multiple tubes and columns in the traditional frame, reducing weight and assembly difficulty. Secondly, the head of the main support rod (12) passes through the through hole (203) at the bottom of the irregular load-bearing frame and directly abuts against the assembly baffle (21). Combined with the connection of the shock absorber (13), the load pressure during riding is dispersed, the load-bearing strength and stability are improved, and the safety hazard of the columns easily penetrating in the traditional structure is avoided.

[0027] The "V" shaped contour design of this solution is more ergonomic. The fit between the seat cushion (3) and the mounting plate (21) provides a comfortable riding experience and reduces fatigue. The connection between the flat-head fixing part (200) and the steering column sleeve (10) and the triangular fixing method of the shock absorber (13) enhance the overall rigidity and impact resistance of the frame, ensuring safety and durability under complex road conditions. After the overall structure is simplified, not only is the production cost reduced, but maintenance is also more convenient. It comprehensively solves the problems of complex structure, low safety and heavy weight of existing electric bicycle frames.

[0028] Optionally, the surface of the seat cushion (3) can be an integral soft cushion structure with the bottom of the seat cushion (3), or the bottom can be a single component that matches the concavity of the mounting baffle (21), and then the surface layer is covered on this component. In another case, the mounting baffle (21) and the seat cushion (3) are made into an integral structure and are directly assembled with the irregularly shaped load-bearing frame body (20), further reducing the assembly process.

[0029] Reference Appendix Figure 4-7 As a preferred embodiment of this utility model, the irregular-shaped load-bearing frame body (20) and the assembly baffle (21) of this solution are both integral composite welded structures. For example, the platform fixing part of the irregular-shaped load-bearing frame body (20) to the middle section bent on one side is connected by arc welding. The two sides of the assembly baffle (21) are also composite welded. This can make the components without splicing welds, improve the structural strength and integrity of the irregular-shaped load-bearing frame body (20) and the assembly baffle (21), and make them more solid and durable.

[0030] Of course, in addition to this preferred integrated composite welding method, other feasible structural forms can also be considered for the irregular load-bearing frame body (20) and assembly baffle (21), such as using precision casting one-time molding process to manufacture, etc.

[0031] Reference Appendix Figure 5 , 7 As a preferred embodiment of this utility model, the bottom edge of the assembly baffle (21) of this solution forms a rolled edge (211), and a frame edge (205) that cooperates with the rolled edge (211) is provided on the edge of the "V"-shaped opening of the irregular load-bearing frame body (20). It can be quickly installed and fixed by aligning the rolled edge (211) with the frame edge (205) and sliding it in from one side. The operation is very convenient.

[0032] Understandably, the fit between the rolled edge (211) and the frame edge (205) also prevents the assembly baffle (21) from shifting or loosening under stress. Specifically, after the rolled edge (211) is aligned with the frame edge (205) and slides in from one side, the frame edge (205) limits the rolled edge (211), and because it is a "V" shape, the two are not easy to come apart.

[0033] Reference Appendix Figure 5 As a preferred embodiment of this utility model, in the scheme, an upwardly protruding part (212) is provided on the bottom surface of the mounting baffle (21), and a recessed limiting groove (30) matching the shape of the protruding part (212) is provided on the bottom surface of the seat (3). When the seat (3) is installed on the mounting baffle (21), the protruding part (212) will be embedded in the limiting groove (30), which can prevent the seat (3) from moving forward, backward, left, or right due to vibration or force during riding, thus ensuring the stability and comfort of riding. The cooperation between the protruding part and the limiting groove (30) is a simple and reliable anti-slip design.

[0034] Reference Appendix Figure 7 As a preferred embodiment of this utility model, a fixing piece (202) is provided on the side opening of the irregular load-bearing frame body (20) near the flat-head fixing part (200). After one end of the mounting baffle (21) is inserted into the irregular load-bearing frame body (20), the fixing piece (202) can be used to lock it to prevent it from accidentally coming out during vibration or load-bearing, thereby enhancing the safety and reliability of the connection of the entire load-bearing frame assembly (2).

[0035] Reference Appendix Figure 7 As a preferred embodiment of this utility model, in this solution, a horizontally placed "U"-shaped spring piece (204) is provided on the outside of the through hole (203) on the main body (20) of the irregular load-bearing frame. The "U"-shaped spring piece (204) can enhance the strength of the bottom recess (201) of the main body (20) of the irregular load-bearing frame, especially the bending area with the through hole (203). When subjected to the impact from the main support rod (12) and long-term load, it can provide additional support force, prevent plastic deformation or cracking in this area, absorb some energy, play a buffering role, and improve the fatigue resistance of the component, thereby extending the service life of the overall structure.

[0036] Of course, alternatively, there are other ways to strengthen the bottom bending area. For example, it can be achieved by locally increasing the thickness of the plate (i.e., setting reinforcing ribs) or by welding a metal reinforcing block of a specific shape.

[0037] Reference Appendix Figure 5As a preferred embodiment of this utility model, this solution provides reinforcing ribs (210) at the bottom of the mounting baffle (21). The reinforcing ribs (210) are preferably grid-shaped in this solution, and are mainly located in the rear area of ​​the mounting baffle (21) where the stress is concentrated. This prevents deformation when bearing the weight of the passenger, thus ensuring stable support for the seat cushion (3) and improving the overall structural durability.

[0038] The following points need to be explained: (1) The accompanying drawings of the embodiments of this disclosure only involve the structures involved in the embodiments of this disclosure. Other structures can be referred to the general design.

[0039] (2) Where there is no conflict, features of the same embodiment and different embodiments of this disclosure can be combined with each other.

[0040] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A one-piece irregular-shaped vehicle frame structure with high strength characteristics, characterized in that, include The load-bearing frame assembly assembled with the main body of the vehicle frame, The main body of the frame includes a steering column sleeve and a connecting rod extending obliquely downward from the lower part of the steering column sleeve to one side. The other end of the connecting rod is connected to one side of a vertically mounted main support rod, and the other side of the bottom of the main support rod is connected to one end of a rear support frame. A shock absorber is provided on the top of the rear support frame. The load-bearing frame assembly includes an irregularly shaped load-bearing frame body. The overall outline of the irregularly shaped load-bearing frame body is "V" shaped. A horizontally placed flat-head fixing part extends from one end of the irregularly shaped load-bearing frame body. The flat-head fixing part has a columnar structure. The "V" shaped portion of the irregularly shaped load-bearing frame body opens upward. The other end of the flat-head fixing part is connected to the steering column sleeve and remains on the same side as the connecting rod on the steering column sleeve. The bottom of the irregularly shaped load-bearing frame body is a recessed portion. The recessed portion has a through hole for the head of the main support rod below to pass through. The other side, near the bottom of the recessed portion, is connected to one end of the shock absorber. An assembly baffle is provided above the main body of the irregular-shaped load-bearing frame. The assembly baffle matches the "V" shape of the main body of the irregular-shaped load-bearing frame. The assembly baffle is fixed by a fixing member at the bottom and a fixing hole in the main body of the irregular-shaped load-bearing frame. The head of the main support rod abuts against the bottom of the assembly baffle. A cushion is fixed on the upper surface of the assembly baffle. The bottom shape of the cushion fits the concave contour of the assembly baffle.

2. The integrated irregular-shaped frame structure with high strength characteristics according to claim 1, characterized in that, Both the main body of the irregular-shaped load-bearing frame and the assembly baffle are integral composite welded structures.

3. The integrated irregular-shaped frame structure with high strength characteristics according to claim 1, characterized in that, The bottom edge of the assembly baffle is rolled, and the edge of the "V"-shaped opening of the irregular load-bearing frame body forms a frame edge that cooperates with and is fixed to the rolled edge.

4. The integrated irregular-shaped frame structure with high strength characteristics according to claim 1, characterized in that, The bottom surface of the assembly baffle protrudes upward to form a protrusion, and the bottom surface of the seat cushion forms a limiting groove that is recessed in relation to the protrusion.

5. The integrated irregular-shaped frame structure with high strength characteristics according to claim 1, characterized in that, On the main body of the irregular-shaped load-bearing frame, a fixing piece is provided at the opening position on the side near the flat-head fixing part for fixing one end of the assembly baffle after insertion.

6. The integrated irregular-shaped frame structure with high strength characteristics according to claim 1, characterized in that, In the main body of the irregularly shaped load-bearing frame, a horizontally placed "U-shaped" spring is provided outside the through hole.

7. The integrated irregular-shaped frame structure with high strength characteristics according to claim 1, characterized in that, The bottom of the assembly baffle is provided with reinforcing ribs.

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