A tricycle chassis frame for mounting a battery pack

Abstract

The utility model discloses a three -wheel car chassis frame for installing battery package, including the frame, be equipped with the installation storehouse on the frame, can detachably be equipped with battery package in the installation storehouse, battery package outside is equipped with the fixing frame, detachably be equipped with quick -mounting sleeve on the fixing frame, the inside fixed of installation storehouse is equipped with quick -mounting rod, quick -mounting sleeve outside is equipped with the adaptation board, quick -mounting sleeve outside slide -in cover is equipped with the movement cover, one side of movement cover is connected and is equipped with the adaptation spring, quick -mounting sleeve one end fixedly equipped with quick -mounting board, quick -mounting board one side swing is equipped with the movable plate, movable plate one side is connected and is equipped with the elastic plate, elastic plate one side fixedly equipped with movable block, the oblique type of movement cover is equipped with the movement groove, the sliding of movement groove is equipped with the movement block, one end fixed connection of movement block is equipped with quick -mounting block, quick -mounting rod outside is equipped with quick -mounting groove, the utility model discloses the convenient dismounting of battery package has been realized to the effective fixed battery package simultaneously, is convenient for the overhauling maintenance and replacement of battery package in later period.

Description

Technical Field

[0001] This utility model relates to the technical field of tricycle chassis frames for mounting battery packs, and more specifically, it relates to a tricycle chassis frame for mounting battery packs. Background Technology

[0002] In existing technologies, the tricycle chassis frame used to install the battery pack is a key carrier of the energy system of electric tricycles. Its design quality directly affects the vehicle's safety, battery life, and the stability of the overall vehicle performance. However, the chassis frames currently circulating in the market still have some technical defects in terms of battery installation and fixation.

[0003] Firstly, the tricycle industry commonly uses a simple battery installation method, where the battery pack is placed directly in the space under the seat without professional securing devices. While this simple installation method has low initial cost and is easy to operate, it has significant technical defects: During vehicle operation, especially on bumpy roads or during sharp turns, the battery pack is prone to horizontal displacement or vertical jumping, leading to unstable connection between the battery and the vehicle's electrical interface and causing momentary circuit interruptions. Long-term displacement can also cause mechanical damage to the battery casing and internal structure, reducing battery life. More seriously, unstable battery interface connections may generate electrical sparks, posing a safety hazard under certain conditions. In addition, the uncertainty of the battery's position can affect the vehicle's center of gravity distribution, adversely affecting the tricycle's handling and driving stability, especially when fully loaded or traveling at high speeds, increasing the risk of tipping over. This design method, lacking an effective securing mechanism, not only reduces the user experience but also increases the frequency and cost of battery maintenance and replacement.

[0004] Secondly, with the continuous development of technology, some manufacturers have begun to try to solve the battery fixing problem by adding mounting brackets. However, although this improved design enhances the stability of battery installation, it still has significant shortcomings in terms of practicality and convenience: the installation and removal of the mounting bracket usually requires the use of multiple professional tools such as wrenches, sockets, and Allen wrenches, which is cumbersome, time-consuming, and labor-intensive, significantly reducing the efficiency of battery replacement and maintenance. More problematic is that the space under the seat is narrow and irregularly shaped, restricting the operator's hand movement and making it difficult to reach bolts at certain angles, thus rendering some tools ineffective and increasing the difficulty of operation. Although this design solves the battery fixing problem, its inconvenient installation and removal characteristics seriously affect the efficiency of daily battery maintenance and emergency replacement, causing many inconveniences for users in actual use. Especially in roadside assistance or emergency situations, the complicated installation and removal procedures may cause the vehicle to be unusable for a long time, resulting in unnecessary losses and troubles for users. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] In view of the problems existing in the prior art, this utility model provides a three-wheeled vehicle chassis frame for mounting a battery pack, so as to solve the technical problems mentioned in the background art.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a three-wheeled vehicle chassis frame for installing a battery pack, comprising a frame, a detachable mounting compartment on the frame, a detachable battery pack in the mounting compartment, a fixing frame on the outside of the battery pack, a detachable quick-release sleeve on the fixing frame, a quick-release rod fixedly mounted inside the mounting compartment, a quick-release sleeve detachably fitted onto the outside of the quick-release rod, an adapter plate fixedly mounted on the outside of the quick-release sleeve, a movable sleeve slidably mounted on the outside of the quick-release sleeve, an adapter spring connected to one side of the movable sleeve, the other end of the adapter spring connected to the adapter plate, a quick-release plate fixedly mounted at one end of the quick-release sleeve, a movable plate movably mounted on one side of the quick-release plate, an elastic plate connected to one side of the movable plate, a movable block fixedly mounted on one side of the elastic plate, a movable groove obliquely opened in the movable sleeve, a movable block slidably mounted in the movable groove, a quick-release block fixedly connected to one end of the movable block, a quick-release groove opened on the outside of the quick-release rod, and the quick-release block snapping into the quick-release groove.

[0009] The present invention is further configured such that a seat is provided above the installation compartment, the seat is rotatably connected to the installation compartment via a hinge, and a detachable cushion is provided on the seat. This design allows the seat to be easily flipped open, providing the operator with a space to directly contact the battery pack.

[0010] The present invention is further configured such that the side wall of the installation compartment is provided with multiple heat dissipation grooves. This ventilation design effectively solves the problem of heat accumulation generated by the battery during charging and use, forms a natural convection heat dissipation channel, reduces the battery operating temperature, and extends the battery life.

[0011] The present invention is further provided with a detachable handle at the top of the battery pack, and two handles are symmetrically arranged. This humanized design allows the operator to easily grasp the battery pack for picking up and putting it in. The symmetrical double handle design ensures even force distribution and avoids battery damage or muscle strain of the operator that may be caused by applying force on one side, which significantly improves the safety and convenience of battery replacement.

[0012] The present invention is further configured such that the outer wall of the movable sleeve adopts a rounded corner structure design and the movable block adopts an arc-shaped column structure design. This rounded corner and arc design forms a smooth pushing contact surface, ensuring smooth sliding between the movable sleeve and the movable block, reducing frictional resistance and jamming, and making the operation smoother.

[0013] The present invention is further configured such that the quick-installation slot is formed in a ring structure on the outside of the quick-installation rod. This ring design allows the quick-installation block to be firmly inserted into the quick-installation slot at any angle, eliminating the need to consider the installation angle and greatly simplifying the installation process.

[0014] The present invention is further configured such that a fixing ring is fixedly provided on the outer side of the quick-release sleeve, and the fixing ring is fixedly installed on one side of the quick-release plate. This design forms a travel limit structure for the movable sleeve and reserves space for the movable block.

[0015] The present invention is further configured such that an adapter groove is provided on the inner side of the movable sleeve, an adapter rod is fixedly connected to one side of the adapter plate, and the other end of the adapter rod is fixedly connected to the fixing ring. The movable sleeve is slidably connected to the adapter rod through the adapter groove, and the adapter spring is movably sleeved on the outside of the adapter rod. This guide sliding design ensures that the movable sleeve can only move in a straight line along a predetermined path and realizes the guide and limit of the adapter spring, effectively preventing the deflection and shaking of the movable sleeve and the adapter spring during operation.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, the present invention provides a three-wheeled vehicle chassis frame for mounting a battery pack, which has the following advantages:

[0018] 1. By innovatively designing the combined structure of the frame, mounting compartment, battery pack, and fixing bracket, and cleverly configuring the connection mechanism between the quick-release sleeve and quick-release rod, the problem of battery pack displacement caused by simple battery placement installation in existing technologies is completely solved. This design ensures that the battery pack is firmly connected to the mounting compartment through the fixing bracket. This design allows the battery pack to remain stable even when encountering bumpy roads or sharp turns during the tricycle's operation, completely preventing horizontal displacement and vertical jumping of the battery pack. It effectively avoids the instantaneous circuit interruption caused by unstable connection between the battery and the vehicle's electrical interface, while also reducing mechanical damage to the battery casing and internal structure, extending battery life. More importantly, the stable battery connection effectively prevents electrical sparks that may be generated by unstable connections, eliminating safety hazards. At the same time, the fixed position of the battery pack ensures the stability of the vehicle's center of gravity distribution, improving the tricycle's handling and driving stability. Especially under full load or high-speed driving conditions, it reduces the risk of rollover. This structural design significantly improves the user experience, reduces the frequency and cost of battery maintenance and replacement, and further ensures the safety of the electric tricycle, battery life, and the stability of the overall vehicle performance.

[0019] 2. Adopting an innovative quick-release mechanism, this design completely solves the problem of cumbersome installation and removal of the mounting bracket in existing technologies, which require specialized tools. The core of this design lies in the quick-locking and unlocking mechanism composed of components such as the movable sleeve, adapter spring, movable plate, elastic plate, movable block, movable slot, and quick-release block. This allows operators to install and remove the mounting bracket without any tools. For disassembly, simply pull the movable sleeve upwards to remove the quick-release sleeve from the outside of the quick-release rod, thus facilitating the easy removal of the mounting bracket and battery pack. For installation, first install the battery pack and mounting bracket in the installation compartment, then slip the quick-release sleeve onto the outside of the quick-release rod and press down on the quick-release sleeve until the quick-release block engages with the quick-release slot, completing the locking process. This design allows operators to install and remove the mounting bracket by hand. The disassembly and assembly process eliminates the need for specialized tools such as wrenches, sockets, and hex wrenches, greatly simplifying the operation and significantly reducing operational difficulty and time costs. Especially considering the limited and irregularly shaped space under the seat, it solves the problem of difficult tool use due to space constraints in traditional designs. Meanwhile, multiple heat dissipation slots on the side wall of the mounting compartment provide excellent heat dissipation, preventing battery overheating. Two symmetrical handles at the top of the battery pack facilitate battery access. This convenient disassembly and assembly design significantly improves the efficiency of daily battery maintenance and emergency replacement. Especially in roadside assistance or emergency situations, the quick disassembly and assembly process ensures the vehicle can be restored to use promptly, avoiding unnecessary losses and inconvenience, and comprehensively enhancing the ease of use and maintenance efficiency of the electric tricycle. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a three-wheeled vehicle chassis frame for mounting a battery pack according to the present invention;

[0021] Figure 2 This is a structural diagram of the mounting bracket and battery pack in this utility model;

[0022] Figure 3 This is a cross-sectional structural diagram of the quick-release sleeve, movable sleeve, movable plate, and quick-release rod in this utility model;

[0023] Figure 4 This is a structural schematic diagram of the quick-release sleeve, movable sleeve, movable plate, and quick-release rod in this utility model.

[0024] Figure 5 This is a schematic diagram of the dispersed structure of the movable block and movable sleeve in this utility model.

[0025] In the diagram: 1. Frame; 2. Mounting compartment; 3. Battery pack; 4. Mounting bracket; 5. Quick-release sleeve; 6. Quick-release rod; 7. Adapter plate; 8. Movable sleeve; 9. Adapter spring; 10. Quick-release plate; 11. Movable plate; 12. Elastic plate; 13. Movable block; 14. Movable slot; 15. Movable block; 16. Quick-release block; 17. Quick-release slot; 18. Seat; 19. Seat cushion; 20. Cooling slot; 21. Handlebar; 22. Fixing ring; 23. Adapter slot; 24. Adapter rod. Detailed Implementation

[0026] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0027] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0028] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0029] Please see Figures 1-5 A three-wheeled vehicle chassis frame for mounting a battery pack includes a frame 1, a detachable mounting compartment 2 on the frame 1, a detachable battery pack 3 in the mounting compartment 2, a fixing bracket 4 on the outside of the battery pack 3, a detachable quick-release sleeve 5 on the fixing bracket 4, a quick-release rod 6 fixed inside the mounting compartment 2, the quick-release sleeve 5 detachably sleeved on the outside of the quick-release rod 6, an adapter plate 7 fixed on the outside of the quick-release sleeve 5, a movable sleeve 8 slidably sleeved on the outside of the quick-release sleeve 5, and an adapter spring 9 connected to one side of the movable sleeve 8. The other end of the spring 9 is connected to the adapter plate 7. One end of the quick-release sleeve 5 is fixedly provided with a quick-release plate 10. A movable plate 11 is movably provided on one side of the quick-release plate 10. An elastic plate 12 is connected to one side of the movable plate 11. A movable block 13 is fixedly provided on one side of the elastic plate 12. A movable groove 14 is inclinedly opened in the movable sleeve 8. A movable block 15 is slidably provided in the movable groove 14. A quick-release block 16 is fixedly connected to one end of the movable block 15. A quick-release groove 17 is opened on the outside of the quick-release rod 6. The quick-release block 16 is inserted into the quick-release groove 17.

[0030] A seat 18 is provided above the installation compartment 2. The seat 18 is rotatably connected to the installation compartment 2 via a hinge. A seat cushion 19 is detachably provided on the seat 18.

[0031] The side wall of the installation compartment 2 has multiple heat dissipation slots 20.

[0032] The top of the battery pack 3 is detachably equipped with a handle 21, and there are two handles 21 symmetrically arranged.

[0033] In this embodiment, when the battery pack 3 needs to be removed for maintenance and repair, firstly, the seat 18 is pried outwards, causing the seat 18 to rotate along the hinge provided on one side of the mounting compartment 2, thereby opening the seat 18. Then, the movable sleeve 8 is pulled upwards, causing the adapter groove 23 to slide along the adapter rod 24. The movable sleeve 8, in conjunction with the adapter plate 7, compresses the adapter spring 9 sleeved on the outside of the movable rod. Simultaneously, the movable sleeve 8 causes the inclined movable groove 14 on the inner side to slide upwards. This causes the movable block 15 to slide outwards in the movable slot 14. The movable block 15 then drives one side of the quick-release block 16 to gradually slide out of the quick-release slot 17. Simultaneously, the rounded corner structure of the outer wall of the movable sleeve 8 pushes the movable block 13 outwards, causing the movable block 13 to tilt the elastic plate 12 outwards. Then, the movable sleeve 8 continues to be pulled upwards, causing the quick-release block 16 to be completely pulled out of the quick-release slot 17. At this point, the movable sleeve 8 moves to the other side of the movable block 13, and then the elastic plate 12 drives the movable block 13 to automatically return to its original position. Then, pull the quick-release sleeve 5 and the movable sleeve 8 upwards together, causing the quick-release sleeve 5 to disengage from the outside of the quick-release rod 6. Then, release the movable sleeve 8. The adapter spring 9 pushes the movable sleeve 8 to drive the adapter groove 23 to slide and reset along the adapter rod 24. The movable sleeve 8 will also drive the inner movable groove 14 to slide and reset, causing the movable block 15 to drive the quick-release block 16 to slide and reset inwards. At the same time, the movable sleeve 8 will push the movable block 13 on one side, causing the movable block 13 to drive the elastic plate 12 to slide along the quick-release plate 10. The elastic plate 12 will also drive the movable plate 16 to slide inwards. Slide the quick-release sleeve 5 away from the side of the quick-release plate 10. Then the movable sleeve 8 will abut against the side of the fixing ring 22 to achieve a complete reset. At this time, the movable block 13 is in the position corresponding to the fixing ring 22, thereby completely removing the quick-release sleeve 5. Then, follow the above steps to remove the other quick-release sleeves 5 together. Then, remove the fixing bracket 4 from the outside of the battery pack 3. Then, disconnect the wiring of the battery pack 3. Then, lift the battery pack 3 out of the installation compartment 2 through the two handles 21 to perform maintenance and repair on the battery pack 3.

[0034] Please see Figures 3-5 As a further implementation of the overall equipment: the outer wall of the movable sleeve 8 adopts a rounded corner structure design, and the movable block 13 is an arc-shaped column structure design.

[0035] The quick-release slot 17 is a ring-shaped structure located on the outside of the quick-release rod 6.

[0036] A fixing ring 22 is fixedly provided on the outer side of the quick-release sleeve 5, and the fixing ring 22 is fixedly installed on one side of the quick-release plate 10.

[0037] The movable sleeve 8 has an adapter groove 23 on its inner side. An adapter rod 24 is fixedly connected to one side of the adapter plate 7. The other end of the adapter rod 24 is fixedly connected to the fixing ring 22. The movable sleeve 8 is slidably connected to the adapter rod 24 through the adapter groove 23, and the adapter spring 9 is movably sleeved on the outside of the adapter rod 24.

[0038] More specifically, when the battery pack 3 needs to be reinstalled after maintenance and repair, firstly, the battery pack 3 is placed back into the installation compartment 2, and the wiring of the battery pack 3 is connected. Then, the fixing bracket 4 is placed outside the battery pack 3, and the quick-release rod 6 fixed inside the installation compartment 2 passes through the pre-drilled installation hole on the fixing bracket 4. Then, the quick-release sleeve 5 is fitted over the fixing bracket 4 from above to the outside of the fixing rod. Then, one side of the movable plate 11 will first contact the upper surface of the fixing bracket 4, so that the movable plate 11 will not move. Then, the movable plate 11, the elastic plate 12, and the movable block 13 will all... The movable block 13 remains stationary, pressing against one side of the movable sleeve 8, preventing it from moving further. At this point, the quick-release sleeve 5 moves other components downwards, causing the adapter plate 7 and the movable sleeve 8 to press against the adapter spring 9. The quick-release sleeve 5 also causes the adapter rod 24 to slide along the adapter groove 23. Meanwhile, the movable sleeve 8 will not move from the movable groove 14, and the movable block 15 will slide relative to it within the groove 14. This causes the movable block 15 to move the quick-release block 16 outwards again. When the quick-release sleeve 5 is fully fitted onto the outside of the quick-release rod 6, the position of the quick-release block 16 corresponds to the position of the quick-release groove 17. At this time, the adapter spring 9 applies a pushing force to the movable sleeve 8 that is greater than the deformation force of the elastic plate 12. Then, the adapter spring 9 pushes the movable sleeve 8 to slide and reset, causing the rounded corner structure on the other side of the outer wall of the movable sleeve 8 to push the movable block 13 outward. This causes the movable block 13 to tilt the elastic plate 12 outward. At the same time, the movable sleeve 8 will cause the adapter groove 23 to slide and reset along the adapter rod 24, and the movable sleeve 8 will also cause the inner inclined movable groove 14 to slide and reset, causing the movable block 15 to drive the quick-release block 16 on one side to slide and reset inward, thereby causing the quick-release block 16 to re-lock. When the quick-installation sleeve 16 is inserted into the quick-installation slot 17, the movable sleeve 8 moves to the other side of the movable block 13, causing the elastic plate 12 to drive the movable block 13 back to its original position. When the quick-installation block 16 is fully inserted into the quick-installation slot 17, the movable sleeve 8 is fully reset, and one side of the movable sleeve 8 abuts against the fixing ring 22, thereby achieving convenient installation of the quick-installation sleeve 5. Then, the other quick-installation sleeves 5 are installed in sequence according to the above steps to achieve convenient fixing of the fixing frame 4, thereby achieving convenient and stable fixing of the battery pack 3, ensuring the stable use of the battery pack 3, and thus ensuring the stable use of the electric tricycle.

[0039] In summary, when the battery pack 3 needs to be removed for maintenance or repair, first, pry the seat 18 outwards, causing the seat 18 to rotate along the hinge on one side of the mounting compartment 2, thus opening the seat 18. Then, pull the moving sleeve 8 upwards. The moving sleeve 8 will cause the adapter groove 23 to slide along the adapter rod 24, and the moving sleeve 8 will cooperate with the adapter plate 7 to compress the adapter spring 9 sleeved on the outside of the moving rod. At the same time, the moving sleeve 8 will cause the moving groove 1, which is inclined on the inside, to move. 4. Slide upwards, causing the movable block 15 to slide outwards in the movable slot 14. Then, the movable block 15 will drive one side of the quick-release block 16 to gradually slide out of the quick-release slot 17. At the same time, the rounded corner structure of the outer wall of the movable sleeve 8 will push the movable block 13 outwards, causing the movable block 13 to drive the elastic plate 12 to tilt outwards. Then, continue to pull the movable sleeve 8 upwards, so that the quick-release block 16 is completely pulled out of the quick-release slot 17. At this time, the movable sleeve 8 moves to the other side of the movable block 13, and then the elastic plate 12 will drive the movable block 13 to automatically... Return to center, then pull the quick-release sleeve 5 and the movable sleeve 8 upwards together, causing the quick-release sleeve 5 to disengage from the outside of the quick-release rod 6. Then release the movable sleeve 8. The adapter spring 9 pushes the movable sleeve 8, causing the adapter groove 23 to slide and reset along the adapter rod 24. The movable sleeve 8 will also cause the inner movable groove 14 to slide and reset, causing the movable block 15 to slide and reset the quick-release block 16 inwards. At the same time, the movable sleeve 8 will push one side of the movable block 13, causing the movable block 13 to cause the elastic plate 12 to slide along the quick-release plate 10. The elastic plate 12 will also cause the movable block 16 to slide and reset. Slide plate 11 toward the side away from quick-release plate 10, and then the movable sleeve 8 will abut against the side of the fixing ring 22 to achieve complete reset. At this time, the movable block 13 is in the position corresponding to the fixing ring 22, thereby achieving complete removal of quick-release sleeve 5. Then, follow the above steps to remove the other quick-release sleeves 5 together. Then, remove the fixing bracket 4 from the outside of the battery pack 3. Then, disconnect the wiring of the battery pack 3. Then, lift the battery pack 3 out of the installation compartment 2 through the two handles 21 to perform maintenance and repair on the battery pack 3.

[0040] When the battery pack 3 needs to be reinstalled after maintenance and repair, first place the battery pack 3 back into the installation compartment 2 and connect the wiring of the battery pack 3. Then, place the fixing bracket 4 outside the battery pack 3, and make the quick-release rod 6 fixed inside the installation compartment 2 pass through the reserved installation hole on the fixing bracket 4. Then, put the quick-release sleeve 5 from above the fixing bracket 4 to the outside of the fixing rod. Then, one side of the movable plate 11 will first contact the upper end face of the fixing bracket 4, so that the movable plate 11 will not move. Then, the movable plate 11, the elastic plate 12, and the movable block 13 will not move. This causes the movable block 13 to abut against one side of the movable sleeve 8, preventing the movable sleeve 8 from moving. At this time, the quick-release sleeve 5 drives other components to continue moving downwards, causing the adapter plate 7 and the movable sleeve 8 to cooperate in pressing the adapter spring 9. The quick-release sleeve 5 also causes the adapter rod 24 to slide along the adapter groove 23. At this time, the movable sleeve 8 will move but the groove 14 will not move. The movable block 15 will slide relative to the movable groove 14, causing the movable block 15 to drive the quick-release block 16 to slide outwards again. When the quick-release sleeve 5 is completely fitted onto the outside of the quick-release rod 6, the position of the quick-release block 16 corresponds to the position of the quick-release groove 17, and at this time... The adapter spring 9 applies a pushing force to the movable sleeve 8 that is greater than the deformation force of the elastic plate 12. Then, the adapter spring 9 pushes the movable sleeve 8 to slide and reset, causing the rounded corner structure on the other side of the outer wall of the movable sleeve 8 to push the movable block 13 outward. This causes the movable block 13 to tilt the elastic plate 12 outward. At the same time, the movable sleeve 8 will cause the adapter groove 23 to slide and reset along the adapter rod 24, and the movable sleeve 8 will also cause the inner inclined movable groove 14 to slide and reset, causing the movable block 15 to drive the quick-release block 16 on one side to slide and reset inward, thereby causing the quick-release block 16 to re-lock into place. Inside the quick-installation slot 17, during this process, the movable sleeve 8 moves to the other side of the movable block 13, causing the elastic plate 12 to drive the movable block 13 back to its original position. When the quick-installation block 16 is fully inserted into the quick-installation slot 17, the movable sleeve 8 is fully reset, and one side of the movable sleeve 8 abuts against the fixing ring 22, thereby achieving convenient installation of the quick-installation sleeve 5. Then, the other quick-installation sleeves 5 are installed in sequence according to the above steps to achieve convenient fixing of the fixing frame 4, thereby achieving convenient and stable fixing of the battery pack 3, ensuring the stable use of the battery pack 3, and thus ensuring the stable use of the electric tricycle.

[0041] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A three-wheeled vehicle chassis frame for mounting a battery pack, comprising a frame (1), characterized in that: The frame (1) is detachably provided with a mounting compartment (2), and a battery pack (3) is detachably provided in the mounting compartment (2). A fixing frame (4) is provided on the outside of the battery pack (3). A quick-release sleeve (5) is detachably provided on the fixing frame (4). A quick-release rod (6) is fixedly provided inside the mounting compartment (2). The quick-release sleeve (5) is detachably sleeved on the outside of the quick-release rod (6). An adapter plate (7) is fixedly provided on the outside of the quick-release sleeve (5). A movable sleeve (8) is slidably sleeved on the outside of the quick-release sleeve (5). An adapter spring (9) is connected to one side of the movable sleeve (8). The other end is connected to the adapter plate (7). One end of the quick-release sleeve (5) is fixedly provided with a quick-release plate (10). A movable plate (11) is movably provided on one side of the quick-release plate (10). An elastic plate (12) is connected to one side of the movable plate (11). A movable block (13) is fixedly provided on one side of the elastic plate (12). A movable groove (14) is opened in the movable sleeve (8) at an incline. A movable block (15) is slidably provided in the movable groove (14). A quick-release block (16) is fixedly connected to one end of the movable block (15). A quick-release groove (17) is opened on the outside of the quick-release rod (6).

2. A tricycle chassis frame for mounting a battery pack according to claim 1, characterized in that: A seat (18) is provided above the installation compartment (2). The seat (18) is rotatably connected to the installation compartment (2) via a hinge. A seat cushion (19) is detachably provided on the seat (18).

3. A tricycle chassis frame for mounting a battery pack according to claim 2, characterized in that: The installation compartment (2) has multiple heat dissipation slots (20) on its side wall.

4. A tricycle chassis frame for mounting a battery pack according to claim 3, characterized in that: The battery pack (3) has a detachable handle (21) at the top, and there are two handles (21) symmetrically arranged.

5. A three-wheeled vehicle chassis frame for mounting a battery pack according to any one of claims 1-4, characterized in that: The outer wall of the movable sleeve (8) adopts a rounded corner structure design, and the movable block (13) adopts an arc-shaped column structure design.

6. A tricycle chassis frame for mounting a battery pack according to claim 5, characterized in that: The quick-release slot (17) is a ring structure located on the outside of the quick-release rod (6).

7. A tricycle chassis frame for mounting a battery pack according to claim 6, characterized in that: The quick-release sleeve (5) is fixedly provided with a fixing ring (22) on the outside, and the fixing ring (22) is fixedly installed on one side of the quick-release plate (10).

8. A tricycle chassis frame for mounting a battery pack according to claim 7, characterized in that: The movable sleeve (8) has an adapter groove (23) on its inner side. An adapter rod (24) is fixedly connected to one side of the adapter plate (7). The other end of the adapter rod (24) is fixedly connected to the fixing ring (22). The movable sleeve (8) is slidably connected to the adapter rod (24) through the adapter groove (23). The adapter spring (9) is movably sleeved on the outside of the adapter rod (24).

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