Folding type electro-tricycle frame and electro-tricycle

Abstract

The utility model relates to the technical field of electric bicycles, and discloses a folding electric tricycle frame and an electric tricycle. All the folding assemblies are arranged on the vehicle body base in an aligned mode, each folding assembly comprises a connecting base, a first transmission part and a fixing base which are arranged on the vehicle body base, and the two ends of each first transmission part are rotationally connected with the corresponding connecting base and the corresponding fixing base correspondingly; a telescopic rod is connected between the two first transmission pieces, pressing rods are arranged at the two ends of the telescopic rod in a telescopic mode, the fixing base is provided with an arc-shaped through groove partially coincident with the rotation track of the first transmission pieces, a limiting hole is formed in the arc-shaped through groove, and the pressing rods are located in the arc-shaped through groove; and the bearing seat is arranged on the fixed seat. After the carrying seat is folded, the electro-tricycle can be transversely placed or vertically placed, so that the occupied space of the electro-tricycle is greatly reduced, and the use convenience is improved.

Description

Technical Field

[0001] This utility model relates to the field of electric bicycles, and more particularly to a folding electric tricycle frame and an electric tricycle. Background Technology

[0002] Currently, electric tricycles on the market generally suffer from large size and low space utilization. Traditional frames use a fixed structure design, and the entire vehicle body cannot be adjusted or folded, resulting in a large space occupation when parked or transporting, which limits the applicability of electric tricycles, especially for short-distance urban transportation, family users, and warehousing and logistics scenarios, thus hindering the promotion and use of electric tricycles. Utility Model Content

[0003] The main purpose of this utility model is to provide a folding electric tricycle frame and an electric tricycle, aiming to solve the technical problem of the large space occupied by electric tricycles when not in use.

[0004] To achieve the above objectives, this utility model provides a folding electric tricycle frame, comprising: a vehicle base; at least two folding components, all folding components being aligned and disposed on the vehicle base, each folding component including a connecting seat, a first transmission member, and a fixed seat disposed on the vehicle base, the two ends of the first transmission member being rotatably connected to the connecting seat and the fixed seat respectively, a telescopic rod connecting the two first transmission members, the two ends of the telescopic rod being retractably provided with pressing rods, the fixed seat having an arc-shaped through groove partially coinciding with the rotation trajectory of the first transmission member, the arc-shaped through groove having a limiting hole, the pressing rod being located within the arc-shaped through groove; and a support seat disposed on the fixed seat, wherein when the pressing rod is in a retracted state, the pressing rod can move within the arc-shaped through groove and can extend radially into any one of the limiting holes and be engaged in the limiting hole, thereby changing the folding height between the support seat and the vehicle base.

[0005] Optionally, the folding assembly further includes a second transmission member, the two ends of which are rotatably connected to the connecting seat and the fixed seat respectively, and the second transmission member and the first transmission member are arranged in parallel.

[0006] Optionally, the connecting seat includes a first connecting portion and a second connecting portion, the first transmission member is rotatably disposed in the first connecting portion, the second transmission member is rotatably disposed in the second connecting portion, and the difference between the height of the second connecting portion and the height of the first connecting portion is greater than the width of at least one of the second transmission members.

[0007] Optionally, the telescopic rod body is provided with an elastic element, and the pressing rod includes a sliding part, a limiting part and a pressing part connected in sequence. The sliding part is slidably disposed in the telescopic rod body and supports the elastic element. The limiting part is adapted to the contour of the folding fixing hole. The maximum diameter of the cross-section of the pressing part is smaller than the width of the arc-shaped through groove.

[0008] Optionally, the first transmission member and the second transmission member are provided with a pair of folding rotating holes at both ends, and the folding rotating holes are provided with self-lubricating copper bushings. The folding rotating holes are used to rotatably connect with the connecting seat or the fixed seat.

[0009] Optionally, the bottom surface of the vehicle body base is provided with a mounting box, which is used to install various electrically driven accessories.

[0010] Optionally, the support seat is provided with a plurality of crossbeams, and the crossbeams are provided with connecting ears on one or both sides.

[0011] Optionally, a reinforcing beam connects the two first transmission components.

[0012] Optionally, the pressing rod protruding from the arc-shaped through groove is fitted with an extended button sleeve.

[0013] This utility model also provides an electric tricycle, including a seat, a rear wheel and the electric tricycle frame, wherein the rear wheel is mounted on the rear end of the vehicle body base and the seat is mounted on the support seat.

[0014] In the technical solution provided by this utility model, when folding is required, pressing the pressing rod moves it within the arc-shaped groove and engages with the limiting hole in the corresponding folding position (the diameter of the limiting hole is usually larger than the width of the arc-shaped groove, allowing the pressing rod to extend out of the arc-shaped groove and be engaged by the limiting hole). This changes the angle between the first transmission component and the vehicle body base, thereby changing the height between the cargo seat on the fixed seat at one end of the first transmission component and the vehicle body base. After folding the cargo seat, the electric tricycle can be placed horizontally or vertically, significantly reducing the space occupied by the electric tricycle and improving its ease of use. Attached Figure Description

[0015] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0016] Figure 1 This is a schematic diagram of the structure of one embodiment of the folding electric tricycle frame of this utility model;

[0017] Figure 2This is an exploded structural diagram of one embodiment of the folding electric tricycle frame of this utility model;

[0018] Figure 3 for Figure 2 Enlarged view of part A in the middle;

[0019] Figure 4 This is a side view of one embodiment of the folding electric tricycle frame of this utility model;

[0020] Figure 5 for Figure 4 Sectional view at point BB;

[0021] Figure 6 This is a structural schematic diagram of one embodiment of the folding electric tricycle frame of this utility model after folding.

[0022] In the diagram: 1. Vehicle body base; 11. Mounting box; 2. Folding assembly; 21. Connecting seat; 211. First connecting part; 212. Second connecting part; 22. Fixing seat; 221. Arc-shaped through groove; 2211. Limiting hole; 23. First transmission component; 231. Reinforcing beam; 24. Second transmission component; 25. Telescopic rod; 251. Elastic component; 26. Pressing rod; 261. Sliding part; 262. Limiting part; 263. Pressing part; 27. Folding rotation hole; 3. Bearing seat; 31. Crossbeam; 32. Connecting lug; 4. Rear wheel. Detailed Implementation

[0023] To facilitate understanding of this utility model, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as being "connected to" another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "vertical," "horizontal," "left," "right," "inner," "outer," and similar expressions used in this specification are for illustrative purposes only. In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating relative importance or implying the number of indicated technical features. Thus, unless otherwise stated, features defined as "first" or "second" may explicitly or implicitly include one or more of that feature; "multiple" means two or more. The term "comprising" and any variations thereof mean non-exclusive inclusion, where one or more other features, integers, steps, operations, units, components, and / or combinations thereof may be present or added.

[0024] Furthermore, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections via an intermediate medium, or internal communication between two components. All technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0025] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0026] Please refer to Figures 1 to 6 This utility model provides a folding electric tricycle frame, including: a vehicle base 1; at least two folding components 2, all folding components 2 are aligned and arranged on the vehicle base 1, each folding component 2 includes a connecting seat 21, a first transmission member 23, and a fixing seat 22 disposed on the vehicle base 1, the two ends of the first transmission member 23 are rotatably connected to the connecting seat 21 and the fixing seat 22 respectively, and a telescopic rod 25 is connected between the two first transmission members 23, the two ends of the telescopic rod 25 are telescopically provided with pressing rods 26. The fixed base 22 is provided with an arc-shaped through groove 221 that partially coincides with the rotation trajectory of the first transmission component 23. The arc-shaped through groove 221 is provided with a limiting hole 2211. The pressing rod 26 is located in the arc-shaped through groove 221. The bearing seat 3 is set on the fixed base 22. When the pressing rod 26 is in the retracted state, the pressing rod 26 can move in the arc-shaped through groove 221 and can extend radially into any limiting hole 2211 and be stuck in the limiting hole 2211, thereby changing the folding height between the bearing seat 3 and the vehicle body base 1.

[0027] In the technical solution provided by this utility model, when folding is required, pressing the pressing rod 26 causes it to move within the arc-shaped through groove 221 and engage with the limiting hole 2211 in the corresponding folding position (the diameter of the limiting hole 2211 is usually larger than the width of the arc-shaped through groove 221, allowing the pressing rod 26 to extend out of the arc-shaped through groove 221 and be engaged by the limiting hole 2211). This changes the angle between the first transmission member 23 and the vehicle body base 1, thereby changing the height between the cargo seat on the fixed seat 22 at one end of the first transmission member 23 and the vehicle body base 1. After folding the cargo seat, the electric tricycle can be placed horizontally or vertically, significantly reducing the space occupied by the electric tricycle and improving its ease of use.

[0028] Please refer to Figures 1 to 6In this embodiment, the folding assembly 2 further includes a second transmission member 24. The two ends of the second transmission member 24 are rotatably connected to the connecting seat 21 and the fixed seat 22, respectively. The second transmission member 24 and the first transmission member 23 are arranged parallel to each other. The function of the second transmission member 24 is to further fix the fixed seat 22, and its parallel arrangement with the first transmission member 23 prevents interference between the two transmission members during folding and rotation. The first transmission member 23 and the second transmission member 24 each have a pair of folding rotation holes 27 at their ends. The folding rotation holes 27 are equipped with self-lubricating copper bushings and are used for rotatable connection with the connecting seat 21 or the fixed seat 22. The self-lubricating copper bushings form an interference fit with the rotating shaft, reducing the rotational wear of the first transmission member 23 and the second transmission member 24. The function of the second transmission member 24 is to increase the support portion of the fixed seat 22, making the support seat 3 less prone to tipping over. Simultaneously, the parallel arrangement of the first transmission member 23 and the second transmission member 24 ensures that the support seat 3 remains horizontal during rotation, preventing tipping due to the angle difference between the two transmission members.

[0029] Please refer to Figures 1 to 6 In this embodiment, the connecting seat 21 includes a first connecting portion 211 and a second connecting portion 212. A first transmission member 23 is rotatably disposed in the first connecting portion 211, and a second transmission member 24 is rotatably disposed in the second connecting portion 212. The difference between the height of the second connecting portion 212 and the height of the first connecting portion 211 is greater than the width of at least one second transmission member 24. The main purpose of this arrangement is to prevent interference between the first transmission member 23 and the second transmission member 24. Please refer to [reference needed]. Figure 6 In the folded vehicle body, the first transmission component 23 and the second transmission component 24 are very close together. This design ensures that the second transmission component 24 will not collide with the first transmission component 23 during rotation.

[0030] Please refer to Figures 1 to 6 In this embodiment, the telescopic rod 25 is provided with an elastic element 251, and the pressing rod 26 includes a sliding part 261, a limiting part 262, and a pressing part 263 connected in sequence. The sliding part 261 is slidably disposed in the telescopic rod 25 and supports the elastic element 251. The limiting part 262 is adapted to the contour of the folding fixing hole, and the maximum diameter of the pressing part 263 is smaller than the width of the arc-shaped through groove 221. The elastic element 251 is generally a spring. In the normal state, the elastic element 251 pushes the limiting part 262 into the limiting hole 2211. When the pressing part 263 is subjected to pressure, the elastic element 251 contracts, and the limiting part 262 pushes into the arc-shaped through groove 221. At this point, the two ends of the telescopic rod 25 are provided with corresponding limiting structures to prevent the sliding part 261 from sliding out.

[0031] Please refer to Figures 1 to 6In this embodiment, the bottom surface of the vehicle body base 1 is provided with a mounting box 11. The mounting box 11 is used to install various accessories for electric drive, especially for installing the battery of the electric tricycle. The mounting box 11 is provided with wiring holes inside to facilitate wiring. The mounting box 11 will not interfere with other parts of the frame when the tricycle is folded.

[0032] Please refer to Figures 1 to 6 In this embodiment, the support base 3 is provided with several crossbeams 31, and the crossbeams 31 are provided with connecting ears 32 on one or both sides. The crossbeams 31 and the connecting ears 32 are used to install the seat cushion.

[0033] Please refer to Figures 1 to 6 In this embodiment, a reinforcing beam 231 is connected between the two first transmission components 23 to prevent the multiple first transmission components 23 from shifting during use and affecting the folding effect.

[0034] Please refer to Figures 1 to 6 In this embodiment, an extended button sleeve is fitted onto the protruding arc-shaped through groove 221 of the pressing rod 26 to facilitate the user pressing the pressing part 263 and protect the user's hand. This utility model also provides an electric tricycle, including a seat, a rear wheel 4, and the aforementioned electric tricycle frame. The rear wheel 4 is mounted on the rear end of the vehicle body base 1, and the seat is mounted on the support seat 3.

[0035] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Under the concept of this utility model, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of this utility model as described above. For the sake of brevity, they are not provided in detail. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A folding electric tricycle frame, characterized by, The utility model relates to a folding vehicle body, which comprises: a vehicle body base (1); at least two folding assemblies (2) are arranged on the vehicle body base (1) in alignment, each folding assembly (2) comprises a connecting seat (21), a first transmission member (23) and a fixing seat (22) arranged on the vehicle body base (1), the first transmission member (23) is rotatably connected to the connecting seat (21) and the fixing seat (22) at two ends respectively, a telescopic rod (25) is connected between the two first transmission members (23), the telescopic rod (25) is telescopically provided with a pressing rod (26) at two ends, the fixing seat (22) is provided with an arc-shaped through slot (221) partially coinciding with the rotation track of the first transmission member (23), the arc-shaped through slot (221) is provided with a limiting hole (2211) therein, and the pressing rod (26) is located in the arc-shaped through slot (221). a bearing seat (3) is arranged on the fixing seat (22), the pressing rod (26) can move in the arc-shaped through slot (221) when the pressing rod (26) is in a retracted state, and the pressing rod (26) can be radially clamped in any limiting hole (2211) to extend out of the limiting hole (2211), so that the folding height between the bearing seat (3) and the vehicle body base (1) is changed.

2. The folding electric tricycle frame of claim 1, wherein, The folding assembly (2) further comprises a second transmission member (24), the second transmission member (24) is rotatably connected to the connecting seat (21) and the fixing seat (22) at two ends respectively, and the second transmission member (24) and the first transmission member (23) are arranged in parallel.

3. The folding electric tricycle frame of claim 2, wherein, The connecting seat (21) comprises a first connecting part (211) and a second connecting part (212), the first transmission member (23) is rotatably arranged in the first connecting part (211), the second transmission member (24) is rotatably arranged in the second connecting part (212), and the difference between the height of the second connecting part (212) and the height of the first connecting part (211) is greater than the width of at least one second transmission member (24).

4. The folding electric tricycle frame of claim 3, wherein, The telescopic rod (25) is provided with an elastic member (251) in the body, the pressing rod (26) comprises a sliding part (261), a limiting part (262) and a pressing part (263) connected in sequence, the sliding part (261) is slidingly arranged in the body of the telescopic rod (25) and is supported on the elastic member (251), the limiting part (262) is matched with the profile of the folding fixing hole, and the maximum diameter of the cross section of the pressing part (263) is smaller than the width of the arc-shaped through slot (221).

5. The folding electric tricycle frame according to any one of claims 2 to 4, characterized in that, The first transmission member (23) and the second transmission member (24) are respectively provided with a pair of folding rotation holes (27) at two ends, the folding rotation holes (27) are provided with self-lubricating copper bushings, and the folding rotation holes (27) are used for being rotatably connected to the connecting seat (21) or the fixing seat (22).

6. The folding electric tricycle frame of claim 5, wherein, The bottom surface of the vehicle body base (1) is provided with a mounting box (11), and the mounting box (11) is used for mounting various accessories driven by electricity.

7. The folding electric tricycle frame of claim 6, wherein, The bearing seat (3) is provided with a plurality of cross beams (31), and one side or both sides of the cross beam (31) are provided with a connecting lug (32).

8. The folding electric tricycle frame of claim 7, wherein, Two said first transmission members (23) are connected with a reinforcing beam (231).

9. The folding electric tricycle frame of claim 8, wherein, The pressing rod (26) is sleeved with an elongated button sleeve at the part protruding from the arc-shaped through groove (221).

10. An electric tricycle, characterized by The electric tricycle frame, the rear wheel (4) is installed at the rear end of the vehicle body base (1), and the cushion is installed on the bearing seat (3).

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