Lock catch device for preventing battery of electric sports car from falling off

The battery anti-disengagement locking device, with its inlet, drive shaft, and semi-circular locking block structure, solves the problem of existing electric sports vehicle batteries requiring two-hand operation, enabling smooth locking and unlocking with one hand, and improving battery removal efficiency and locking stability.

CN224177458UActive Publication Date: 2026-04-28SHENZHEN SANDIN CYCLE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN SANDIN CYCLE CO LTD
Filing Date
2025-04-17
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

Existing anti-detachment locking devices for electric sports vehicles require two-hand operation, resulting in low removal efficiency and insufficient locking stability.

Method used

A battery anti-disengagement locking device was designed, which adopts an inlet, a drive shaft and a semi-circular locking block structure, combined with a coil spring and counterweight filler, to achieve one-handed locking and unlocking. The coil spring automatically drives the drive shaft to rotate through its winding force, thereby improving locking stability.

Benefits of technology

It enables smooth locking and unlocking with one hand, improves battery removal efficiency, and enhances locking stability and vibration resistance.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224177458U_ABST
    Figure CN224177458U_ABST
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Abstract

The utility model relates to the technical field of anti-falling lock catch devices, in particular to an anti-falling lock catch device for a battery of an electric sports car. The storage box has the advantages that when a battery is pushed in through the lead-in opening, the transmission shaft and the semicircular clamping block are pushed into the circular bayonet, and then the transmission shaft and the semicircular clamping block can be driven to rotate by rotating and retracting the pulling handle to the inner wall of the storage groove, so that the transmission shaft and the semicircular clamping block are transversely arranged at the top of the inner wall of the circular bayonet, and the upward degree of freedom is limited; the anti-disengaging lock catch structure is convenient to operate, locking and unlocking can be completed only by controlling the pulling handle to rotate with one hand, the unlocking action and the unlocking action are continuous, operation is smoother and more convenient, efficiency is improved, the winding force of the coil spring can automatically drive the transmission shaft to rotate through the winding force, the pulling handle can be automatically retracted, and the anti-disengaging lock catch structure is convenient to use. And meanwhile, by pulling the counterweight filler on the inner wall of the handle, the lifting resistance can be improved after locking, and the situation that the handle is bounced due to vibration is prevented.
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Description

Technical Field

[0001] This utility model relates to the technical field of anti-detachment locking devices, and in particular to an anti-detachment locking device for an electric sports vehicle battery. Background Technology

[0002] Currently, most electric sports vehicles (such as electric scooters and balance bikes) adopt a sliding rail battery compartment design, and the mainstream locking device relies on spring latches. However, this structure still has the following problems in actual use:

[0003] The current battery anti-detachment lock for electric sports vehicles is fixed by a spring-driven latch that engages with a locking hole. This means that each time the battery is pushed in or pulled out, one hand needs to pull the latch and the other hand needs to pull the battery, which is inconvenient and affects the efficiency of removal. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art and provide an anti-detachment locking device for electric sports vehicle batteries, which effectively solves the deficiencies of the prior art.

[0005] The objective of this utility model is achieved through the following technical solution: A battery anti-detachment locking device for an electric sports vehicle includes a battery fixing frame. An inlet is provided on one side of the top center of both sides of the battery fixing frame. A circular latch is provided at the bottom of the inlet. One side of the inner wall of the inlet is tangent to one side of the inner wall of the circular latch. A battery is slidably connected to the inner wall of the battery fixing frame. A storage groove is provided at the center of the top surface of the battery. Rotary shafts are rotatably connected to the center of the inner walls of both sides of the storage groove. Connecting pieces are fixedly connected to the facing ends of the two rotating shafts. A pull handle is fixedly connected to the center of the two connecting pieces on the side away from the rotating shaft. A drive shaft is fixedly connected to the center of one of the outer ends of the two rotating shafts. One end of each drive shaft passes through the center of the top of the two sides of the outer wall of the battery. A semi-circular locking block is fixedly connected to the end of each drive shaft that passes through the outer wall of the battery. The semi-circular locking block is concentric with the drive shaft. The center of the drive shaft corresponds to the center of the circular locking opening. The diameter of the semi-circular locking block matches the diameter of the inner wall of the circular locking opening. The sum of the radius of the semi-circular locking block and the radius of the drive shaft matches the width of the inlet.

[0006] Preferably, in any of the above embodiments, a circular hole is provided at the center of the interior of both sides of the top of the battery, and the two drive shafts pass through the center of the two circular holes respectively. A coil spring is wrapped around the outer wall of each of the two drive shafts. One end of the coil spring is fixedly connected to the drive shaft, and the other end of the coil spring is fixedly connected to the inner wall of the circular hole.

[0007] The technical effect achieved by adopting the above solution is that the winding force of the coil spring can automatically drive the drive shaft to rotate, so that the pull handle can be automatically retracted and the semi-circular locking block can be pressed.

[0008] Preferably, in any of the above solutions, the combined dimensions of the pull handle and connecting piece are adapted to the dimensions of the inner wall of the storage slot, and the inner wall of the pull handle is filled with counterweight filler.

[0009] The technical effect achieved by adopting the above solution is that by pulling the counterweight filling material on the inner wall of the handle, the resistance to lifting can be increased after locking, preventing vibration from causing it to bounce up.

[0010] Preferably, in any of the above solutions, the thickness of the semicircular clip is adapted to the wall thickness of the battery fixing frame, and the length of the drive shaft protruding from the outer wall of the battery is adapted to the thickness of the semicircular clip.

[0011] The technical effect achieved by adopting the above solution is that the drive shaft and the semi-circular locking block are both inside the circular locking slot, keeping the outer surface of the battery fixing frame flush.

[0012] Preferably, in any of the above solutions, the dimensions of the outer wall of the battery are adapted to the dimensions of the inner wall of the battery fixing frame, and heat dissipation openings are provided on all four sides of the outer wall of the battery fixing frame.

[0013] The technical effect achieved by adopting the above solution is that the heat dissipation area can be increased and the heat dissipation efficiency can be improved through the heat dissipation opening.

[0014] This utility model has the following advantages:

[0015] 1. The battery anti-detachment locking device of this electric sports vehicle, through the inlet, allows the drive shaft and semi-circular locking block to be pushed into the circular locking slot when the battery is pushed in. Then, as the pull handle is rotated and retracted into the inner wall of the storage slot, the drive shaft and semi-circular locking block can be rotated, causing them to be placed horizontally at the top of the inner wall of the circular locking slot, thereby restricting the upward freedom. This anti-detachment locking structure is easy to operate. Locking and unlocking can be completed by simply operating the rotation of the pull handle with one hand. Moreover, the unlocking action and the release action are continuous, making the operation smoother and more convenient, and improving efficiency.

[0016] 2. The battery anti-detachment locking device of this electric sports vehicle can automatically drive the drive shaft to rotate through the winding force of the coil spring, so that the pull handle can be automatically retracted and the semi-circular block can be pressed to improve the stability of the lock. At the same time, by pulling the counterweight filling material on the inner wall of the handle, the resistance to lifting can be increased after locking, preventing vibration from causing it to bounce up. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a side view of the structure of this utility model;

[0019] Figure 3 This utility model Figure 2 Schematic diagram of the cross-sectional structure at point AA;

[0020] Figure 4 This utility model Figure 2 Enlarged schematic diagram of the structure at point B.

[0021] In the diagram: 1-Battery fixing frame, 2-Heat dissipation opening, 3-Battery, 4-Inlet, 5-Circular bayonet, 6-Drive shaft, 7-Semi-circular locking block, 8-Storage slot, 9-Connecting piece, 10-Pull handle, 11-Rotating shaft, 12-Circular hole, 13-Coil spring. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited to the following description.

[0023] like Figures 1 to 4 As shown, an anti-detachment locking device for an electric sports vehicle battery includes a battery fixing frame 1. An inlet 4 is provided on one side of the top center of both sides of the battery fixing frame 1. A circular latch 5 is provided at the bottom of the inlet 4. One side of the inner wall of the inlet 4 is tangent to one side of the inner wall of the circular latch 5. A battery 3 is slidably connected to the inner wall of the battery fixing frame 1. A storage groove 8 is provided at the center of the top surface of the battery 3. Rotary shafts 11 are rotatably connected to the center of the inner sides of both sides of the storage groove 8. Connecting pieces 9 are fixedly connected to the facing ends of the two rotating shafts 11. The two connecting pieces 9 are located away from the rotating shafts. A pull handle 10 is fixedly connected to the center of one side of the shaft 11. A drive shaft 6 is fixedly connected to the center of one end of the outer side of the two shafts 11. One end of the two drive shafts 6 passes through the center of the top of the two sides of the outer wall of the battery 3. A semi-circular locking block 7 is fixedly connected to the end of the two drive shafts 6 that passes through the outer wall of the battery 3. The semi-circular locking block 7 is concentric with the drive shaft 6. The center of the drive shaft 6 corresponds to the center of the circular locking slot 5. The diameter of the semi-circular locking block 7 is adapted to the diameter of the inner wall of the circular locking slot 5. The sum of the radius of the semi-circular locking block 7 and the radius of the drive shaft 6 is adapted to the width of the inlet 4.

[0024] As an optional technical solution of this utility model: a circular hole 12 is provided at the center of the inside of both sides of the top of the battery 3. Two drive shafts 6 pass through the center of the two circular holes 12 respectively. A coil spring 13 is wrapped around the outer wall of each of the two drive shafts 6. One end of the coil spring 13 is fixedly connected to the drive shaft 6, and the other end of the coil spring 13 is fixedly connected to the inner wall of the circular hole 12. The winding force of the coil spring 13 can automatically drive the drive shaft 6 to rotate, so that the pull handle 10 can be automatically retracted and the semi-circular locking block 7 can be pressed.

[0025] As an optional technical solution of this utility model: the combined size of the pull handle 10 and the connecting piece 9 is adapted to the size of the inner wall of the storage groove 8. The inner wall of the pull handle 10 is filled with counterweight filler. By pulling the counterweight filler on the inner wall of the handle 10, the resistance to lifting can be increased after locking, preventing vibration from causing it to bounce up.

[0026] As an optional technical solution of this utility model: the thickness of the semi-circular locking block 7 is adapted to the wall thickness of the battery fixing frame 1, and the length of the drive shaft 6 protruding from the outer wall of the battery 3 is adapted to the thickness of the semi-circular locking block 7, so that the drive shaft 6 and the semi-circular locking block 7 are both inside the circular locking opening 5, keeping the outer surface of the battery fixing frame 1 flush.

[0027] As an optional technical solution of this utility model: the size of the outer wall of the battery 3 is adapted to the size of the inner wall of the battery fixing frame 1, and heat dissipation openings 2 are provided on all four sides of the outer wall of the battery fixing frame 1. The heat dissipation openings 2 can increase the heat dissipation area and improve the heat dissipation efficiency.

[0028] The working process of this utility model is as follows: When the user uses it...

[0029] 1) Through the inlet 4, when the battery 3 is pushed in, the drive shaft 6 and the semi-circular locking block 7 can be pushed into the circular locking slot 5;

[0030] 2) Then, as the pull handle 10 is rotated back to the inner wall of the storage slot 8, it can drive the drive shaft 6 and the semi-circular block 7 to rotate, so that they are placed horizontally on the top of the inner wall of the circular slot 5, thereby restricting the upward degree of freedom.

[0031] 3) When it is necessary to pull out, pull up the handle 10, which can drive the drive shaft 6 and the semi-circular locking block 7 to rotate and align with the inlet 4, thereby releasing the lock and allowing it to be pulled out.

[0032] In summary, this utility model, through the inlet 4, allows the drive shaft 6 and the semi-circular locking block 7 to be pushed into the circular locking slot 5 when the battery 3 is pushed in. Then, as the pull handle 10 is rotated and retracted into the inner wall of the storage groove 8, the drive shaft 6 and the semi-circular locking block 7 can be rotated, causing them to be placed horizontally at the top of the inner wall of the circular locking slot 5, thereby restricting the upward degree of freedom. This anti-detachment locking structure is easy to operate; locking and unlocking can be completed by simply rotating the pull handle 10 with one hand. Moreover, the unlocking and unlocking actions are continuous, making the operation smoother and more convenient, and improving efficiency. The winding force of the coil spring 13 can automatically drive the drive shaft 6 to rotate, allowing the pull handle 10 to retract automatically and press the semi-circular locking block 7, improving the stability of the lock. At the same time, the counterweight filling material on the inner wall of the pull handle 10 can increase the resistance to lifting after locking, preventing vibration from causing it to bounce up.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A battery anti-detachment locking device for an electric sports vehicle, characterized in that: The battery includes a battery fixing frame (1). An inlet (4) is provided on one side of the top center of both sides of the battery fixing frame (1). A circular latch (5) is provided at the bottom of the inlet (4). One side of the inner wall of the inlet (4) is tangent to one side of the inner wall of the circular latch (5). A battery (3) is slidably connected to the inner wall of the battery fixing frame (1). A storage groove (8) is provided at the center of the top surface of the battery (3). A rotating shaft (11) is rotatably connected to the center of the inner walls of both sides of the storage groove (8). Connecting pieces (9) are fixedly connected to the facing ends of the two rotating shafts (11). The center of the two connecting pieces (9) away from the rotating shafts (11) is located at... A pull handle (10) is fixedly connected to both of the two rotating shafts (11). A drive shaft (6) is fixedly connected to the center of one of the outer ends of each of the two drive shafts (6). One end of each drive shaft (6) passes through the center of the top of the two sides of the outer wall of the battery (3). A semi-circular locking block (7) is fixedly connected to the end of each drive shaft (6) that passes through the outer wall of the battery (3). The semi-circular locking block (7) is concentrically set with the drive shaft (6). The center of the drive shaft (6) corresponds to the center of the circular locking slot (5). The diameter of the semi-circular locking block (7) is adapted to the diameter of the inner wall of the circular locking slot (5). The sum of the radius of the semi-circular locking block (7) and the radius of the drive shaft (6) is adapted to the width of the inlet (4).

2. The anti-detachment locking device for an electric sports vehicle battery according to claim 1, characterized in that: The battery (3) has a circular hole (12) at the center of the inside of both sides of the top. The two drive shafts (6) pass through the center of the two circular holes (12) respectively. The outer walls of the two drive shafts (6) are fitted with coil springs (13). One end of the coil spring (13) is fixedly connected to the drive shaft (6), and the other end of the coil spring (13) is fixedly connected to the inner wall of the circular hole (12).

3. The anti-detachment locking device for an electric sports vehicle battery according to claim 1, characterized in that: The combined dimensions of the pull handle (10) and the connecting piece (9) are adapted to the dimensions of the inner wall of the storage groove (8), and the inner wall of the pull handle (10) is filled with counterweight filler.

4. The anti-detachment locking device for an electric sports vehicle battery according to claim 1, characterized in that: The thickness of the semicircular clip (7) is adapted to the wall thickness of the battery fixing frame (1), and the length of the drive shaft (6) protruding from the outer wall of the battery (3) is adapted to the thickness of the semicircular clip (7).

5. The anti-detachment locking device for an electric sports vehicle battery according to claim 1, characterized in that: The dimensions of the outer wall of the battery (3) are adapted to the dimensions of the inner wall of the battery fixing frame (1), and heat dissipation openings (2) are provided on all four sides of the outer wall of the battery fixing frame (1).