Split assembly type electro-tricycle frame

Abstract

The utility model relates to the field of tricycle frame design, and discloses a split assembly type electro-tricycle frame which comprises a connecting frame, the front side of the connecting frame is fixedly connected with a tricycle head frame, the rear side of the connecting frame is fixedly connected with a front fixing frame, the left end and the right end of the rear side of the front fixing frame are fixedly connected with first front connecting strips, and the left end and the right end of the rear side of the front fixing frame are fixedly connected with second front connecting strips. The left end and the right end of the rear side of the front fixing frame are fixedly connected with second front connecting strips, the second front connecting strips are located on the bottom sides of the first front connecting strips, the bottom sides of the second front connecting strips at the two ends are fixedly connected with mounting strips, and motors are mounted on the front sides of the mounting strips. The overall size of the frame can be flexibly adjusted according to the length of the basket, the motor is started to drive the rotating rod and the gear to rotate, the second rear connecting strip and the rear fixing frame are driven to move through meshing of the gear and the rack, the length between the front fixing frame and the rear fixing frame is changed, the design adapts to the length requirements of different baskets, the universality of the frame is improved, and convenience and rapidness are achieved. And diversified mounting requirements are met.

Description

Technical Field

[0001] This utility model relates to the field of tricycle frame design, and in particular to a split-assembly electric tricycle frame. Background Technology

[0002] Electric tricycles are a common mode of transportation, widely used in logistics, individual businesses, and rural transportation. Depending on the application scenario, users have diverse needs regarding the length of the tricycle's basket. For example, in urban express delivery, a smaller basket is needed for maneuvering through the streets; while in rural areas, transporting agricultural products may require a larger basket to carry more goods.

[0003] Currently, most electric tricycle frames on the market have relatively fixed structures, and the basket length cannot be flexibly adjusted. This fixed frame structure has many shortcomings in practical use. When users need to change to a different basket length, because the frame size is fixed, it cannot be directly adapted to the new basket, often requiring a complete frame replacement. This not only increases user costs but also wastes resources. Furthermore, the fixed frame design struggles to meet the diverse needs of different industries and scenarios, limiting the application range of electric tricycles. At the same time, the existing frames are cumbersome to install baskets, typically requiring multiple tools and complex operations, consuming significant time and labor costs. Therefore, designing an electric tricycle frame that allows for flexible basket length adjustment, convenient basket installation, and high versatility has become an urgent technical problem to be solved. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a modular electric tricycle frame, which aims to solve the problem that existing modular electric tricycle frames cannot be adjusted.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A modular electric tricycle frame includes a connecting frame. A head frame is fixedly connected to the front side of the connecting frame, and a front fixed frame is fixedly connected to the rear side of the connecting frame. Front connecting strips one and two are fixedly connected to the left and right ends of the rear side of the front fixed frame. Front connecting strips two are located at the bottom side of front connecting strips one. Mounting strips are fixedly connected to the bottom sides of front connecting strips two at both ends. A motor is mounted on the front side of the mounting strip. The drive end of the motor is connected to two rear connecting strips two through a transmission assembly. A rear fixed frame is fixedly connected to the rear side of the rear connecting strips two at both ends. A fixed frame is fixedly connected to the right end of the top side of the rear fixed frame. A fixed strip is connected to the left end of the top side of the rear fixed frame through a rotating assembly. A basket is provided between the front and rear fixed frames.

[0007] Furthermore, the transmission assembly includes a rotating rod, which is rotatably connected inside the mounting strip. The right end of the rotating rod passes through the outer wall of the rotating rod and is fixedly connected to the drive end of the motor. Gears are fixedly connected to both ends of the outer wall of the rotating rod. A rack is fixedly connected to the front side of the second rear connecting strip, and the rack meshes with the gear. A rack groove is provided on the bottom side of the second front connecting strip, and the rack is slidably connected inside the rack groove.

[0008] Furthermore, the rotating assembly includes a rotating frame, the bottom side of which is connected to the left end of the top side of the rear fixed frame via a rotating shaft, and a limit strip is rotatably connected to the left end of the rotating frame, the fixed strip being slidably connected inside the rotating frame.

[0009] Furthermore, the right end of the fixing strip is located inside the fixing frame, the left side of the fixing strip is fixedly connected to a limiting piece, the right side of the limiting strip abuts against the left side of the limiting piece, a fixing groove is provided at the rear end of the top side of the basket, the middle end of the fixing strip is located inside the fixing groove, and the right end of the fixing strip is located inside the fixing frame.

[0010] Furthermore, both the front and rear ends of the front side of the rear fixed frame are fixedly connected to a rear connecting strip one. The rear connecting strip one is located on the top side of the rear connecting strip two. A slider is fixedly connected to the front end of the rear connecting strip one, and the slider is slidably connected inside the front connecting strip one.

[0011] Furthermore, each of the two rear connecting strips at opposite ends has a sliding groove at its front end, and each of the two front connecting strips at opposite ends has a connecting strip fixedly connected to its rear end. The two connecting strips at opposite ends are slidably connected to the interior of the sliding grooves at both ends.

[0012] Furthermore, a plurality of limiting blocks are fixedly connected to the rear side of the front fixed frame, and the bottom side of the limiting blocks abuts against the top side of the basket.

[0013] Furthermore, a counterweight is provided inside the connecting frame, and a receiving frame is fixedly connected to the bottom left side of the rear fixing frame.

[0014] This utility model has the following beneficial effects:

[0015] 1. In this utility model, the overall size of the frame can be flexibly adjusted according to the length of the basket. By starting the motor to drive the rotating rod and gear to rotate, the meshing of the gear and rack drives the rear connecting strip and the rear fixed frame to move, thereby changing the length between the front and rear fixed frames. This design adapts to different basket length requirements, improves the versatility of the frame, is convenient and quick, and meets diverse installation needs.

[0016] 2. In this utility model, the installation process of the bicycle basket is simple and efficient. First, place the bicycle basket on the top sides of the front and rear connecting strips and use the limiting blocks to limit it. Then, rotate the rotating shaft to push the fixing strip into the fixing groove and fixing frame. Then, rotate the limiting strip to make it abut against the limiting piece, which quickly completes the installation and fixing of the bicycle basket, saves installation time, and improves work efficiency. Attached Figure Description

[0017] Figure 1 This is a perspective view of a modular electric tricycle frame proposed in this utility model;

[0018] Figure 2 This is a schematic diagram of the rotating frame structure of a split-assembly electric tricycle frame proposed in this utility model;

[0019] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0020] Figure 4 This is a schematic diagram of the support frame structure of a split-assembly type electric tricycle frame proposed in this utility model;

[0021] Figure 5 This is a schematic diagram of the pivot structure of a split-assembly type electric tricycle frame proposed in this utility model;

[0022] Figure 6 This is a schematic diagram of the sliding bar structure of a split-assembly electric tricycle frame proposed in this utility model.

[0023] Legend:

[0024] 1. Connecting frame; 2. Front fixed frame; 3. Limiting block; 4. Front connecting strip one; 5. Rear connecting strip one; 6. Fixing strip; 7. Basket; 8. Rear fixed frame; 9. Rear connecting strip two; 10. Slide groove; 11. Motor; 12. Connecting strip; 13. Front connecting strip two; 14. Slide bar; 15. Counterweight block; 16. Head frame; 17. Rotating frame; 18. Limiting strip; 19. Limiting piece; 20. Fixing frame; 21. Rotating shaft; 22. Receiving frame; 23. Rack; 24. Gear; 25. Rotating rod; 26. Mounting strip; 27. Fixing groove. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Reference Figure 1-3This utility model provides an embodiment of a split-assembly electric tricycle frame, including a connecting frame 1. A head frame 16 is fixedly connected to the front side of the connecting frame 1, and a front fixing frame 2 is fixedly connected to the rear side of the connecting frame 1. Front connecting strips 1-4 are fixedly connected to both ends of the rear side of the front fixing frame 2, and front connecting strips 2-13 are fixedly connected to both ends of the rear side of the front fixing frame 2. The front connecting strips 2-13 are located at the bottom side of the front connecting strips 1-4. Mounting strips 26 are fixedly connected to the bottom side of the two ends of the front connecting strips 2-13. A motor 11 is mounted on the front side of the mounting strips 26. The drive end of the motor 11 is connected to two rear connecting strips 2-9 through a rotating rod 25. A rear fixing frame 8 is fixedly connected to the rear side of the two ends of the rear connecting strips 2-9. A fixing frame 20 is fixedly connected to the right end of the top side of the rear fixing frame 8. A fixing strip 6 is connected to the left end of the top side of the rear fixing frame 8 through a rotating frame 17. A basket 7 is provided between the front fixing frame 2 and the rear fixing frame 8. The right end of the fixing strip 6 is located inside the fixing frame 20, and the left end of the fixing strip 6 is located inside the fixing frame 20. A limiting piece 19 is fixedly connected, and the right side of the limiting strip 18 abuts against the left side of the limiting piece 19. A fixing groove 27 is provided at the rear end of the top side of the basket 7. The middle end of the fixing strip 6 is located inside the fixing groove 27, and the right end of the fixing strip 6 is located inside the fixing frame 20. Both the front and rear ends of the front side of the rear fixing frame 8 are fixedly connected to the first rear connecting strip 5. The first rear connecting strip 5 is located on the top side of the second rear connecting strip 9. The front end of the first rear connecting strip 5 is fixedly connected to the sliding strip 14, which is slidably connected to the front connecting strip 9. Inside the 14, the front ends of the two rear connecting strips 29 on opposite sides are provided with sliding grooves 10, and the rear ends of the two front connecting strips 23 on opposite sides are fixedly connected with connecting strips 12. The two connecting strips 12 on the near sides are respectively slidably connected inside the sliding grooves 10. Multiple limiting blocks 3 are fixedly connected to the rear side of the front fixed frame 2. The bottom side of the limiting block 3 abuts against the top side of the basket 7. The inside of the connecting frame 1 is provided with a counterweight block 15. The bottom left side of the rear fixed frame 8 is fixedly connected with a receiving frame 22.

[0027] Specifically, the connecting frame 1 is equipped with a counterweight 15. Considering the weight differences caused by varying basket lengths 7, and to prevent the tricycle from tipping over due to excessive weight of the basket 7, the weight of the counterweight 15 can be adjusted accordingly based on the actual length of the basket 7. By properly configuring the counterweight 15, the vehicle's center of gravity can be effectively balanced, improving the stability and safety of the vehicle.

[0028] Reference Figure 5 and Figure 6 The rotating rod 25 is rotatably connected inside the mounting strip 26. The right end of the rotating rod 25 passes through the outer wall of the rotating rod 25 and is fixedly connected to the drive end of the motor 11. Gears 24 are fixedly connected to both ends of the outer wall of the rotating rod 25. A rack 23 is fixedly connected to the front side of the rear connecting strip 2 9. The rack 23 and the gear 24 mesh with each other. A rack groove is opened on the bottom side of the front connecting strip 2 13. The rack 23 is slidably connected inside the rack groove.

[0029] Specifically, when installing the basket 7 of the modular electric tricycle frame, the frame can be adjusted as a whole according to the length of the basket 7. First, start the motor 11. After the motor 11 starts running, it drives the rotating rod 25 to rotate, and the rotating rod 25 drives the gear 24 connected to it to rotate synchronously. Since the gear 24 meshes with the rack 23, the rotation of the gear 24 will drive the rack 23 to move. The rack 23 is connected to the rear connecting strip 9, which in turn drives the rear fixed frame 8 to move. In this way, the distance between the front fixed frame 2 and the rear fixed frame 8 can be flexibly adjusted to achieve the adjustment of the overall length of the frame to accommodate baskets 7 of different lengths.

[0030] Reference Figure 2-4 The bottom side of the rotating frame 17 is connected to the left end of the top side of the rear fixed frame 8 via the rotating shaft 21. The left end of the rotating frame 17 is rotatably connected to the limit strip 18, and the fixed strip 6 is slidably connected inside the rotating frame 17.

[0031] Specifically, after adjusting the frame length and setting the counterweight, the basket 7 can be installed. The basket 7 is placed on top of the front connecting strip 13 and the rear connecting strip 9. The limiting block 3 initially limits the basket 7, ensuring its accurate position on the frame. Then, the rotating shaft 21 is rotated, causing the fixing strip 6 to move smoothly into the fixing groove 27 at the bottom of the basket 7 and inside the fixing frame 20, further securing the basket 7's position. Finally, the limiting strip 18 is rotated so that its right side tightly abuts against the left side of the limiting piece 19. Through this series of operations, the basket 7 can be quickly and securely installed and fixed on the split-assembly electric tricycle frame, ensuring the integrity of the vehicle structure and driving safety.

[0032] Working principle: When installing the basket 7, the overall frame can be adjusted according to the length of the basket 7. First, the motor 11 is started to drive the rotating rod 25 and gear 24 to rotate. Since the gear 24 meshes with the rack 23, the motor 11 drives the rack 23 and the rear connecting strip 9 to move the rear fixed frame 8, thereby adjusting the length between the front fixed frame 2 and the rear fixed frame 8, thus adjusting the overall frame. At the same time, the connecting frame 1 is equipped with a counterweight 15, which can be adjusted according to the length of the basket 7. The weight of the counterweight 15 is adjusted to prevent the basket 7 from becoming too heavy and causing the tricycle to tip over. When installing the basket 7, the basket 7 is placed on the top side of the front connecting strip 13 and the rear connecting strip 9, and the basket 7 is limited by the limiting block 3. Then, the rotating shaft 21 is rotated and the fixing strip 6 is pushed, so that the fixing strip 6 enters the fixing groove 27 and the fixing frame 20. Then, the limiting strip 18 is rotated so that the right side of the limiting strip 18 abuts against the left side of the limiting piece 19, thereby quickly installing and fixing the basket 7.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A modular electric tricycle frame, characterized in that, Includes a connecting frame (1), with a front frame (16) fixedly connected to the front side of the connecting frame (1), and a front fixing frame (2) fixedly connected to the rear side of the connecting frame (1). Front connecting strip one (4) is fixedly connected to both the left and right ends of the rear side of the front fixing frame (2), and front connecting strip two (13) is fixedly connected to both the left and right ends of the rear side of the front fixing frame (2). The front connecting strip two (13) is located on the bottom side of the front connecting strip one (4), and mounting strips are fixedly connected to the bottom sides of the front connecting strip two (13) at both ends. (26) A motor (11) is installed on the front side of the mounting strip (26). The driving end of the motor (11) is connected to two rear connecting strips (9) through a transmission assembly. A rear fixing frame (8) is fixedly connected to the rear side of the two rear connecting strips (9) at both ends. A fixing frame (20) is fixedly connected to the right end of the top side of the rear fixing frame (8). A fixing strip (6) is connected to the left end of the top side of the rear fixing frame (8) through a rotating assembly. A basket (7) is provided between the front fixing frame (2) and the rear fixing frame (8).

2. The modular electric tricycle frame according to claim 1, characterized in that, The transmission assembly includes a rotating rod (25), which is rotatably connected inside the mounting strip (26). The right end of the rotating rod (25) passes through the outer wall of the rotating rod (25) and is fixedly connected to the drive end of the motor (11). Gears (24) are fixedly connected to both ends of the outer wall of the rotating rod (25). A rack (23) is fixedly connected to the front side of the rear connecting strip (9). The rack (23) meshes with the gear (24). A rack groove is provided on the bottom side of the front connecting strip (13). The rack (23) is slidably connected inside the rack groove.

3. The modular electric tricycle frame according to claim 1, characterized in that, The rotating assembly includes a rotating frame (17), the bottom side of which is connected to the left end of the top side of the rear fixed frame (8) via a rotating shaft (21), the left end of which is rotatably connected to a limiting strip (18), and the fixing strip (6) is slidably connected inside the rotating frame (17).

4. The modular electric tricycle frame according to claim 3, characterized in that: The right end of the fixing strip (6) is located inside the fixing frame (20). The left side of the fixing strip (6) is fixedly connected to the limiting piece (19). The right side of the limiting strip (18) abuts against the left side of the limiting piece (19). The rear end of the top side of the basket (7) is provided with a fixing groove (27). The middle end of the fixing strip (6) is located inside the fixing groove (27). The right end of the fixing strip (6) is located inside the fixing frame (20).

5. The modular electric tricycle frame according to claim 1, characterized in that: The front and rear ends of the front side of the rear fixed frame (8) are fixedly connected with rear connecting strip one (5). The rear connecting strip one (5) is located on the top side of the rear connecting strip two (9). The front end of the rear connecting strip one (5) is fixedly connected with a slide strip (14). The slide strip (14) is slidably connected inside the front connecting strip one (4).

6. The modular electric tricycle frame according to claim 1, characterized in that: The front ends of the two rear connecting strips (9) at both ends are provided with grooves (10), and the rear ends of the two front connecting strips (13) at both ends are fixedly connected with connecting strips (12). The two connecting strips (12) at both ends are slidably connected to the inside of the grooves (10) at both ends respectively.

7. The modular electric tricycle frame according to claim 1, characterized in that: The rear side of the front fixed frame (2) is fixedly connected with a plurality of limiting blocks (3), and the bottom side of the limiting blocks (3) abuts against the top side of the basket (7).

8. The modular electric tricycle frame according to claim 1, characterized in that: The connecting frame (1) is provided with a counterweight (15) inside, and the bottom of the left side of the rear fixing frame (8) is fixedly connected with a receiving frame (22).

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