Quick battery replacing structure of electro-tricycle

Abstract

The invention relates to the technical field of tricycle manufacturing, and discloses a quick battery replacing structure of an electro-tricycle. The quick battery replacing structure comprises a tricycle main body, a mounting frame arranged on the tricycle main body, and a storage box fixedly mounted on the mounting frame and used for placing a power supply; the power supply mechanism comprises two transverse spring plates and two longitudinal spring plates which are used for fixing a power supply, and further comprises a power supply connector connected with the positive electrode and the negative electrode of the power supply through a power line, and the power supply connector is in contact fixation with a clamping plate through a pressing plate installed in the storage box; a new power supply is grabbed and placed on the power-off mechanism through external grabbing equipment, a new power supply connector is placed on a clamping groove of a clamping plate, at the moment, the power-off mechanism is pushed into a storage box, the power supply is fixed again through reverse movement of an internal structure, meanwhile, the new power supply connector is in butt joint with a fixed connector, and the power-off mechanism is fixed. The purpose of quickly replacing the power supply is achieved.

Description

Technical Field

[0001] This invention relates to the field of tricycle manufacturing technology, and in particular to a fast battery swapping structure for electric tricycles. Background Technology

[0002] With the development of motor vehicles, electric tricycles are becoming increasingly common in our lives. Compared with electric vehicles, electric tricycles can carry more goods. Electric tricycles have advantages such as strong applicability, maneuverability, simple maintenance, convenient repair, and low price. They can flexibly navigate narrow roads, and electric tricycles have a reverse switch to easily achieve forward and reverse driving functions. They are very practical in narrow alleys and lanes, and are very convenient to drive and park.

[0003] Currently, when electric tricycles are in use, their internal power supply is depleted, requiring an external charger to recharge. This causes the tricycle to malfunction while charging. Furthermore, the power supply is typically located under the driver's seat, making it inconvenient to access and replace. Additionally, the power supply is not securely fixed in the box under the seat, making it susceptible to impact with the internal components during use, thus affecting its lifespan.

[0004] Based on this, the present invention designs a fast battery swapping structure for electric tricycles to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a fast battery swapping structure for electric tricycles, aiming to solve the technical problems existing in the prior art mentioned in the background.

[0006] The present invention is implemented as follows: a fast battery swapping structure for an electric tricycle, the structure comprising: Vehicle body: including a mounting frame on the vehicle body, on which a storage box for holding power supply is fixedly mounted; Power supply mechanism: includes two horizontal spring plates and two vertical spring plates for fixing the power supply, and a power connector connected to the positive and negative poles of the power supply via a power cord. The power connector is fixed by a clamping plate and a snap-fit ​​plate installed inside the storage box. It also includes a fixed joint installed on the inner wall of the storage box to cooperate with the power connector to transmit electrical energy. Power-off mechanism: In conjunction with the self-locking mechanism, it drives the power connector to move laterally; Limiting mechanism: used to drive the pressure plate to move in the vertical direction; Positioning mechanism: used to drive the horizontal spring plate and the vertical spring plate to move synchronously.

[0007] Furthermore, the power-off mechanism includes an L-shaped plate fixedly connected to the surface of the snap-fit ​​plate, a compression spring fixedly mounted on the surface of the L-shaped plate, a ring-head connecting rod fixedly mounted on the surface of the L-shaped plate, two spiral track blocks fixedly mounted on the surface of the ring-head connecting rod, and a drawer frame slidably connected to the mounting frame. The drawer frame has a through groove that mates with the ring-head connecting rod. The drawer frame is rotatably connected to a T-shaped rotating cylinder. A linkage rod that mates with the spiral track blocks is fixedly mounted on the surface of the T-shaped rotating cylinder. A torsion spring is fixedly mounted at one end of the T-shaped rotating cylinder. The end of the torsion spring away from the T-shaped rotating cylinder is connected to the drawer frame. The other end of the T-shaped rotating cylinder is connected to the output end of a bevel gear assembly. A linkage gear is fixedly mounted on the input end connecting shaft of the bevel gear assembly, and the input end connecting shaft of the bevel gear assembly is rotatably connected to the drawer frame. The linkage gear meshes with an L-shaped rack. The L-shaped rack is slidably connected to the surface of the drawer frame. The L-shaped rack is connected to the drawer frame via a return spring. The inner wall of the T-shaped rotating cylinder is fixedly connected to a self-locking mechanism.

[0008] Furthermore, the limiting mechanism includes two limiting connecting rods fixedly connected to the surface of the pressing plate. The limiting connecting rods pass through the snap-fit ​​plate and are slidably connected to the snap-fit ​​plate. The surface of the limiting connecting rods is connected to the surface of the snap-fit ​​plate through a tension spring. A sliding column head block is fixedly installed on the surface of the limiting connecting rods. Multiple buffer springs are fixedly installed on the drawer frame. The end of the buffer spring away from the drawer frame is connected to the linkage frame. A track slide plate that cooperates with the column head on the sliding column head block is fixedly installed on the surface of the linkage frame. A transverse spring plate is slidably connected to the linkage frame, and a longitudinal spring plate is slidably connected to the linkage frame.

[0009] Furthermore, the self-locking mechanism includes two sliding heads fixedly installed inside the T-shaped rotating cylinder, and a fixed column fixedly installed on the inner wall of the storage box. The surface of the fixed column is provided with arc-shaped grooves and straight grooves that are smoothly connected in sequence and cooperate with the sliding heads.

[0010] Furthermore, the positioning mechanism includes a movable rod fixedly connected to the surface of the transverse spring plate, the movable rod being slidably connected to the drawer frame, and the transverse spring plate being connected to the linkage frame via a connecting spring. A transverse rack is fixedly installed on the surface of the transverse spring plate, and both transverse racks mesh with a transmission gear. A synchronous gear is fixedly installed on the connecting shaft of the transmission gear, and the synchronous gear meshes with both longitudinal racks. Each longitudinal rack is fixedly installed on the longitudinal spring plate.

[0011] Furthermore, the sliding mechanism includes multiple omnidirectional balls rotatably mounted on the linkage frame.

[0012] Furthermore, the contact end between the moving rod and the trapezoidal block is provided with a ball bearing, and the mating end between the sliding head and the arc-shaped groove and the straight groove is provided with a ball bearing.

[0013] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention uses a power-off mechanism to drive the snap-fit ​​plate to move laterally away from the fixed connector, thereby disengaging the power connector from the fixed connector and achieving the purpose of automatically cutting off the power to the tricycle.

[0014] 2. This invention uses an external gripping device to grab and place a new power supply onto the power-off mechanism, and places the new power connector into the slot of the snap-fit ​​plate. At this time, the power-off mechanism is pushed into the storage box, and the power supply is fixed again through the reverse movement of the internal structure. At the same time, the new power connector is connected to the fixed connector, so as to achieve the purpose of quickly replacing the power supply. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a fast battery swapping structure for an electric tricycle provided in an embodiment of the present invention; Figure 2 This is a schematic cross-sectional view of the present invention; Figure 3 For the present invention Figure 2 A magnified structural diagram at point A; Figure 4 For the present invention Figure 3 A magnified structural diagram at point B; Figure 5 This is another cross-sectional view of the fast battery swapping structure for an electric tricycle according to the present invention; Figure 6 For the present invention Figure 5 A magnified structural diagram at point C; Figure 7 This is another cross-sectional structural schematic diagram of a fast battery swapping structure for an electric tricycle according to the present invention. Figure 8 For the present invention Figure 7 A magnified structural diagram at point D; Figure 9 This is an exploded view of some parts of the quick battery swapping structure for an electric tricycle according to the present invention. Figure 10 For the present invention Figure 9 Enlarged structural diagram at point E: Figure 11 For the present invention Figure 9 Enlarged structural diagram at point F: Figure 12 For the present invention Figure 9 Enlarged structural diagram at point G: Figure 13 This is a schematic diagram of the installation location of the storage box of the present invention: Figure 14 For the present invention Figure 13 A magnified structural diagram at point H.

[0016] In the attached diagram: 1. Vehicle body; 101. Mounting frame; 102. Storage box; 2. Power supply mechanism; 201. Power supply; 202. Transverse spring plate; 203. Longitudinal spring plate; 204. Power connector; 205. Pressure plate; 206. Snap-fit ​​plate; 207. Fixed connector; 3. Power-off mechanism; 301. L-shaped plate; 302. Compression spring; 303. Ring head connecting rod; 304. Spiral track block; 305. Linkage rod; 306. T-shaped rotating cylinder; 307. Torsion spring; 308. Bevel gear set; 309. Linkage gear; 310. L-shaped rack. 311. Drawer frame; 312. Return spring; 4. Limiting mechanism; 401. Limiting connecting rod; 402. Tension spring; 403. Sliding column head block; 404. Track slide plate; 405. Linkage frame; 406. Buffer spring; 5. Self-locking mechanism; 501. Sliding head; 502. Fixed column; 503. Arc groove; 504. Straight groove; 6. Positioning mechanism; 601. Moving rod; 602. Trapezoidal block; 603. Transverse rack; 604. Transmission gear; 605. Synchronous gear; 606. Longitudinal rack; 7. Sliding mechanism; 701. Universal ball. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0018] It is understood that the terms “first,” “second,” etc., used in this application may be used herein to describe various elements, but unless otherwise stated, these elements are not limited by these terms. These terms are used only to distinguish one element from another.

[0019] like Figure 1 , Figure 2 , Figure 3 , Figure 6 , Figure 8 , Figure 10 , Figure 11 and Figure 12 As shown, in one embodiment, a fast battery swapping structure for an electric tricycle is proposed, the structure comprising: Vehicle body 1: includes a mounting frame 101 disposed on the vehicle body 1, and a storage box 102 for holding the power supply 201 is fixedly mounted on the mounting frame 101; Power supply mechanism 2: includes two transverse spring plates 202 and two longitudinal spring plates 203 for fixing the power supply 201, and also includes a power connector 204 connected to the positive and negative poles of the power supply 201 via a power cord. The power connector 204 is fixed by contact between a clamping plate 205 and a snap-fit ​​plate 206 installed inside the storage box 102, and also includes a fixed connector 207 fixedly installed on the inner wall of the storage box 102 and cooperating with the power connector 204 to transmit electrical energy. Power-off mechanism 3: In cooperation with self-locking mechanism 5, it drives the power connector 204 to move laterally; Limiting mechanism 4: used to drive the pressing plate 205 to move in the vertical direction; Positioning mechanism 6: used to drive the horizontal spring plate 202 and the vertical spring plate 203 to move synchronously.

[0020] In practical applications, when the battery needs to be replaced, a person applies force to the power-off mechanism 3, such as... Figure 3 As shown, the power-off mechanism 3 causes the snap-fit ​​plate 206 to move laterally away from the fixed connector 207, thereby disengaging the power connector 204 from the fixed connector 207, thus achieving the purpose of automatically cutting off the power to the tricycle. Figure 11 As shown, the power-off mechanism 3 and the self-locking mechanism 5 work together to remove the power-off mechanism 3 from the limiting effect of the self-locking mechanism 5. At this point, pulling the power supply 201 out of the storage box 102 causes the power supply 201 to be pulled out gradually. Figure 10 As shown, the limiting mechanism 4 causes the clamping plate 205 to move vertically upward and disengage from the power connector 204, thus no longer limiting the power connector 204. After this process occurs, as... Figure 6 and Figure 8 As shown, the positioning mechanism 6 prevents the power supply 201 from being limited by the horizontal spring plate 202 and the vertical spring plate 203. The horizontal spring plate 202 and the vertical spring plate 203 are used to reduce the swaying amplitude of the power supply 201 when the tricycle is moving, thereby increasing the service life of the power supply 201. When the power-off mechanism 3 is pulled out into place, the power connector 204 is removed from the snap plate 206 by personnel, and the power supply 201 is taken out from the power-off mechanism 3 by an external gripping device, thereby achieving the purpose of automatic, safe and fast unloading. Then, the new power supply 201 is gripped and placed on the power-off mechanism 3 by the external gripping device, and the new power connector 204 is placed in the slot of the snap plate 206. At this time, the power-off mechanism 3 is pushed into the storage box 102, and the power supply 201 is fixed again by the reverse movement of the internal structure. At the same time, the new power connector 204 is connected to the fixed connector 207, thereby achieving the purpose of quickly replacing the power supply 201.

[0021] like Figure 3 , Figure 11 , Figure 13 and Figure 14 As shown, in a preferred embodiment of the present invention, the power-off mechanism 3 includes an L-shaped plate 301 fixedly connected to the surface of the snap-fit ​​plate 206. A compression spring 302 is fixedly mounted on the surface of the L-shaped plate 301. A ring-head connecting rod 303 is fixedly mounted on the surface of the L-shaped plate 301. Two spiral track blocks 304 are fixedly mounted on the surface of the ring-head connecting rod 303. It also includes a drawer frame 311 slidably connected to the mounting frame 101. The drawer frame 311 has a through groove that mates with the ring-head connecting rod 303. The drawer frame 311 is rotatably connected to a T-shaped rotating cylinder 306. A linkage rod 304 that mates with the spiral track blocks 304 is fixedly mounted on the surface of the T-shaped rotating cylinder 306. 5. A torsion spring 307 is fixedly installed at one end of the T-shaped rotating cylinder 306. The end of the torsion spring 307 away from the T-shaped rotating cylinder 306 is connected to the drawer frame 311. The other end of the T-shaped rotating cylinder 306 is connected to the output end of the bevel gear group 308. A linkage gear 309 is fixedly installed on the input end connecting shaft of the bevel gear group 308. The input end connecting shaft of the bevel gear group 308 is rotatably connected to the drawer frame 311. The linkage gear 309 meshes with the L-shaped rack 310. The L-shaped rack 310 is slidably connected to the surface of the drawer frame 311. The L-shaped rack 310 is connected to the drawer frame 311 through the return spring 312. The inner wall of the T-shaped rotating cylinder 306 is fixedly connected to the self-locking mechanism 5.

[0022] In practical applications, when it is necessary to replace the power supply 201, such as... Figure 14 As shown, when an external force is applied to the L-shaped rack 310, it moves towards the drawer frame 311, simultaneously compressing the return spring 312. It should be noted that the L-shaped rack 310 is mounted on the inner wall of the drawer frame 311 to conceal it, preventing accidental contact from external forces that could cause the drawer frame 311 to slide out of the storage box 102, thus protecting the internal power supply. The movement of the L-shaped rack 310 drives the linkage gear 309 to rotate via rack and pinion transmission. The rotation of the linkage gear 309, in turn, drives the T-shaped rotating cylinder 306 to rotate via the bevel gear set 308. Figure 11 As shown, at this time, the rotation of the T-shaped rotating cylinder 306 releases the limiting effect on the drawer frame 311 through the action of the self-locking mechanism 5. At the same time, the rotation of the T-shaped rotating cylinder 306 causes the ring head connecting rod 303 to move away from the torsion spring 307 by sliding on the spiral track block 304 through the linkage rod 305. Figure 3As shown, at this time, the ring head connecting rod 303 drives the snap plate 206 to move away from the fixed joint 207 through the L-shaped plate 301, thereby causing the power connector 204 to disengage from the fixed joint 207, achieving the purpose of automatically cutting off the power to the tricycle.

[0023] like Figure 9 and Figure 10 As shown, in another preferred embodiment of the present invention, the limiting mechanism 4 includes two limiting connecting rods 401 fixedly connected to the surface of the pressing plate 205. The limiting connecting rods 401 pass through the snap-fit ​​plate 206 and are slidably connected to the snap-fit ​​plate 206. The surface of the limiting connecting rods 401 is connected to the surface of the snap-fit ​​plate 206 through a tension spring 402. A sliding column head block 403 is fixedly installed on the surface of the limiting connecting rods 401. A plurality of buffer springs 406 are fixedly installed on the drawer frame 311. The end of the buffer spring 406 away from the drawer frame 311 is connected to the linkage frame 405. A track slide plate 404 that cooperates with the column head on the sliding column head block 403 is fixedly installed on the surface of the linkage frame 405. The transverse spring plate 202 is slidably connected to the linkage frame 405, and the longitudinal spring plate 203 is slidably connected to the linkage frame 405.

[0024] In practical applications, when the drawer frame 311 is pulled out of the storage box 102 by a person, as shown in the embodiments of the present invention... Figure 10 As shown, at this time, the power connector 204 and the fixed connector 207 have been disengaged. During this process, the sliding head block 403 moves on the track of the track slide 404. The sliding head block 403 moves from the flat slope section of the track slide 404 to the ramp end of the track slide 404. Under the action of the tension spring 402, it drives the limiting connecting rod 401 to move vertically upward, thereby causing the pressure plate 205 to disengage from the pressure on the power connector 204, thus achieving the purpose of automatically releasing the limiting of the power connector 204.

[0025] like Figure 11 As shown, in another preferred embodiment of the present invention, the self-locking mechanism 5 includes two sliding heads 501 fixedly installed inside the T-shaped rotating cylinder 306, and also includes a fixed column 502 fixedly installed on the inner wall of the storage box 102. The surface of the fixed column 502 is provided with an arc-shaped groove 503 and a straight groove 504 that are smoothly connected in sequence and cooperate with the sliding heads 501.

[0026] In practical applications, the embodiments of the present invention, such as Figure 11As shown, when the T-shaped rotating drum 306 rotates, it drives the sliding head 501 to slide on the arc-shaped groove 503. When it reaches the end of the arc-shaped groove 503, the drawer frame 311 can be pulled outward, so that the sliding head 501 slides along the straight groove 504, thereby achieving the purpose of automatically limiting the drawer frame 311. At the same time, due to the blocking effect of the straight groove 504, the T-shaped rotating drum 306 cannot rotate under the elastic potential energy of the torsion spring 307, thereby achieving the purpose of automatically limiting the power connector 204. After the power supply 201 is replaced, the drawer frame 311 is pushed into the storage box 102. At the end, the elastic potential energy of the torsion spring 307 drives the T-shaped rotating drum 306 to reverse, thereby driving the power connector 204 to connect and cooperate with the fixed connector 207 through the power-off mechanism 3, thereby achieving the purpose of automatically powering the tricycle.

[0027] like Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, in another preferred embodiment of the present invention, the positioning mechanism 6 includes a movable rod 601 fixedly connected to the surface of the transverse spring plate 202. The movable rod 601 is slidably connected to the drawer frame 311, and the transverse spring plate 202 is connected to the linkage frame 405 through a connecting spring. A transverse rack 603 is fixedly installed on the surface of the transverse spring plate 202. Both transverse racks 603 mesh with the transmission gear 604. A synchronous gear 605 is fixedly installed on the connecting shaft of the transmission gear 604. The synchronous gear 605 meshes with both longitudinal racks 606. Each longitudinal rack 606 is fixedly installed on the longitudinal spring plate 203.

[0028] In practical applications, when the drawer frame 311 is pulled out of the storage box 102 by human force, as in the embodiments of the present invention... Figure 6 As shown, at this time, the moving rod 601 slides along the trajectory of the trapezoidal block 602, and under the action of the connecting spring, it drives the transverse spring plate 202 away from the surface of the power supply 201, thus no longer applying a restrictive force to the surface of the power supply 201, as... Figure 8 As shown, at this time, the movement of the transverse spring plate 202 drives the transmission gear 604 to rotate through the action of the gear rack. The rotation of the transmission gear 604 drives the synchronous gear 605 to rotate synchronously, thereby driving the longitudinal spring plate 203 away from the surface of the power supply 201, thereby achieving the purpose of automatically releasing the limit of the power supply 201.

[0029] like Figure 6 As shown, in another preferred embodiment of the present invention, the sliding mechanism 7 includes a plurality of universal balls 701 rotatably mounted on the linkage frame 405.

[0030] In practical applications, the embodiments of the present invention, such as Figure 6 As shown, by setting the omnidirectional ball 701, when the new power supply 201 is placed on the linkage frame 405, the sliding friction of the power supply 201 is converted into rolling friction by the horizontal spring plate 202 and the vertical spring plate 203 pushing the power supply 201 towards the center to limit it, thereby avoiding scratches on the bottom of the power supply 201.

[0031] like Figure 6 and Figure 11 As shown, in another preferred embodiment of the present invention, the contact end of the moving rod 601 and the trapezoidal block 602 is provided with a ball bearing, and the mating end of the sliding head 501 and the arc groove 503 and the straight groove 504 is provided with a ball bearing.

[0032] In practical applications, the present invention increases the stability of part movement and improves the service life of parts by incorporating a set of rolling balls.

[0033] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0034] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A fast battery swapping structure for an electric tricycle, characterized in that, The structure includes: Vehicle body (1): includes a mounting frame (101) provided on the vehicle body (1), and a storage box (102) for placing a power supply (201) is fixedly installed on the mounting frame (101). Power supply mechanism (2): includes two transverse spring plates (202) and two longitudinal spring plates (203) for fixing the power supply (201), and also includes a power connector (204) connected to the positive and negative poles of the power supply (201) via a power line. The power connector (204) is fixed by contact with a clamping plate (205) and a snap-fit ​​plate (206) installed inside the storage box (102). It also includes a fixed joint (207) fixedly installed on the inner wall of the storage box (102) and cooperates with the power connector (204) to transmit electrical energy. Power-off mechanism (3): In cooperation with the self-locking mechanism (5), it drives the power connector (204) to move laterally; Limiting mechanism (4): used to drive the pressing plate (205) to move in the vertical direction; Positioning mechanism (6): used to drive the horizontal spring plate (202) and the vertical spring plate (203) to move synchronously.

2. The fast battery swapping structure for an electric tricycle according to claim 1, characterized in that, The power-off mechanism (3) includes an L-shaped plate (301) fixedly connected to the surface of the snap-fit ​​plate (206), a compression spring (302) fixedly mounted on the surface of the L-shaped plate (301), a ring-head connecting rod (303) fixedly mounted on the surface of the L-shaped plate (301), two spiral track blocks (304) fixedly mounted on the surface of the ring-head connecting rod (303), and a drawer frame (311) slidably connected to the mounting frame (101). The drawer frame (311) has a through groove that cooperates with the ring-head connecting rod (303). The drawer frame (311) is rotatably connected to the T-shaped rotating cylinder (306). The surface of the T-shaped rotating cylinder (306) is fixedly mounted with a linkage rod (305) that cooperates with the spiral track block (304). One end of the cylinder is fixedly installed with a torsion spring (307). The end of the torsion spring (307) away from the T-shaped rotating cylinder (306) is connected to the drawer frame (311). The other end of the T-shaped rotating cylinder (306) is connected to the output end of the bevel gear group (308). A linkage gear (309) is fixedly installed on the input end connecting shaft of the bevel gear group (308). The input end connecting shaft of the bevel gear group (308) is rotatably connected to the drawer frame (311). The linkage gear (309) meshes with the L-shaped rack (310). The L-shaped rack (310) is slidably connected to the surface of the drawer frame (311). The L-shaped rack (310) is connected to the drawer frame (311) through a return spring (312). The inner wall of the T-shaped rotating cylinder (306) is fixedly connected to the self-locking mechanism (5).

3. The fast battery swapping structure for an electric tricycle according to claim 2, characterized in that, The limiting mechanism (4) includes two limiting connecting rods (401) fixedly connected to the surface of the pressing plate (205). The limiting connecting rods (401) pass through the snap-fit ​​plate (206) and are slidably connected to the snap-fit ​​plate (206). The surface of the limiting connecting rods (401) is connected to the surface of the snap-fit ​​plate (206) through a tension spring (402). A sliding column head block (403) is fixedly installed on the surface of the limiting connecting rods (401). Multiple buffer springs (406) are fixedly installed on the drawer frame (311). One end of the buffer spring (406) away from the drawer frame (311) is connected to the linkage frame (405). A track slide plate (404) that cooperates with the column head on the sliding column head block (403) is fixedly installed on the surface of the linkage frame (405). The transverse spring plate (202) is slidably connected to the linkage frame (405), and the longitudinal spring plate (203) is slidably connected to the linkage frame (405).

4. The fast battery swapping structure for an electric tricycle according to claim 2, characterized in that, The self-locking mechanism (5) includes two sliding heads (501) fixedly installed inside the T-shaped rotating cylinder (306), and also includes a fixed column (502) fixedly installed on the inner wall of the storage box (102). The surface of the fixed column (502) is provided with an arc-shaped groove (503) and a straight groove (504) that are sequentially and smoothly connected and cooperate with the sliding heads (501).

5. The fast battery swapping structure for an electric tricycle according to claim 4, characterized in that, The positioning mechanism (6) includes a movable rod (601) fixedly connected to the surface of the transverse spring plate (202). The movable rod (601) is slidably connected to the drawer frame (311), and the transverse spring plate (202) is connected to the linkage frame (405) through a connecting spring. A transverse rack (603) is fixedly installed on the surface of the transverse spring plate (202). Both transverse racks (603) mesh with the transmission gear (604). A synchronous gear (605) is fixedly installed on the connecting shaft of the transmission gear (604). The synchronous gear (605) meshes with both longitudinal racks (606). Each longitudinal rack (606) is fixedly installed on the longitudinal spring plate (203).

6. The fast battery swapping structure for an electric tricycle according to claim 3, characterized in that, The sliding mechanism (7) includes a plurality of universal balls (701) rotatably mounted on the linkage frame (405).

7. The fast battery swapping structure for an electric tricycle according to claim 5, characterized in that, The contact end of the moving rod (601) and the trapezoidal block (602) is provided with a ball bearing, and the mating end of the sliding head (501) and the arc groove (503) and the straight groove (504) is provided with a ball bearing.

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