Safe hidden battery box of electric power-assisted bicycle

Abstract

The invention provides a safe hidden battery box of an electric power-assisted bicycle, which comprises a battery box bin, a frame welded at two ends of the battery box bin, a closing assembly and a switch for the battery box bin, the closing assembly comprises an outer cover cylinder positioned at the outer end of the battery box bin, and an external thread cylinder is arranged at the front end of the outer cover cylinder; an outer arc-shaped groove is formed in the inner end of the rotary threaded cover; an inner arc-shaped groove is formed in the inner end of the outer threaded cylinder; an arc-shaped rod is arranged at the inner end of the outer arc-shaped groove; an inner movable groove is formed in the inner end of the arc-shaped rod, an inner spring is arranged at the inner end of the inner movable groove, a positioning rod is arranged at the lower end of the inner spring, and a magnetic groove is formed in the upper end of the arc-shaped rod; a magnetic block is arranged at the inner end of the magnetic groove, a telescopic rod is arranged at the outer end of the magnetic block, a rotating ring is arranged at the outer end of the telescopic rod, a rotating groove is formed in the outer end of the rotating ring, and a gear ring is arranged at the outer end of the magnetic block. The battery box solves the problem that the battery box cannot be completely hidden in an electric power-assisted bicycle frame, so that the phenomenon that the battery box is stolen is more.

Description

Technical Field

[0001] The invention relates to the technical field of battery boxes, and in particular to a safe hidden battery box for an electric-assisted bicycle. Background Art

[0002] A safe hidden battery box is a design that is cleverly integrated into the frame of an electric bicycle or in a difficult-to-detect location. This design means that the battery is no longer mounted on the outside of the frame like an ordinary electric bicycle, but is hidden in the body structure through special technical means. This layout is not only beautiful and generous, but also reduces additional wind resistance, avoids the risk of direct impact on the battery, and improves anti-theft performance and service life.

[0003] The safe hidden battery box can greatly improve the overall aesthetics: the clever hiding of the battery box can greatly improve the appearance design of the electric-assisted bicycle, making it look closer to a traditional bicycle, reducing the abrupt "sense of technology" common in general electric models, and more in line with modern aesthetic trends; it can enhance the anti-collision performance: because the battery is no longer exposed to the outside, the impact of external environmental factors is greatly reduced, such as natural erosion by rain, dust, and small collisions that may be encountered during driving, which can be effectively protected and extend the battery life; it can improve the anti-theft effect: the hidden design makes it difficult to find the battery position, thereby effectively preventing the battery from being stolen and ensuring property safety; it can optimize the weight distribution of the vehicle: reasonably placing the battery in the frame helps to optimize the center of gravity distribution of the entire vehicle and improve riding stability, especially when riding on rugged roads or turning quickly, it can provide better controllability and balance; it can improve the convenience of maintenance: although the battery is hidden in the car, designers usually consider setting up a convenient disassembly method to facilitate daily inspection and replacement of the battery to ensure ease of use.

[0004] In the prior art, during the use of the battery box, the battery box cannot be completely hidden in the frame of the electric-assisted bicycle, which often leads to theft. Therefore, we have made improvements to this and proposed a safe hidden battery box for an electric-assisted bicycle. Summary of the invention

[0005] The purpose of the present invention is to solve the problem that the current design of the battery box cannot completely hide the battery box in the frame of the electric power-assisted bicycle, which leads to the frequent theft.

[0006] In order to achieve the above-mentioned object of the invention, the present invention provides the following technical solutions: The invention discloses a safe hidden battery box for an electric power-assisted bicycle, so as to improve the above-mentioned problems.

[0007] The specific application is as follows: A safe hidden battery box for an electric power-assisted bicycle comprises a battery box compartment, two ends of which are welded with a frame, and further comprises: A closing component is used for the switch of a battery box compartment, the closing component includes an outer cover cylinder located at the outer end of the battery box compartment, an external threaded cylinder is provided at the front end of the outer cover cylinder, a rotating threaded cover is provided at the outer end of the external threaded cylinder, an outer arc groove is provided at the inner end of the external threaded cylinder, an arc rod is provided at the inner end of the outer arc groove, an inner movable groove is provided at the inner end of the arc rod, an inner spring is provided at the inner end of the inner movable groove, a positioning rod is provided at the lower end of the inner spring, a magnetic groove is provided at the upper end of the arc rod, a magnetic block is provided at the inner end of the magnetic groove, a telescopic rod is provided at the outer end of the telescopic rod, a rotating ring is provided at the outer end of the rotating ring, a rotating groove is provided at the outer end of the magnetic block, a gear ring is provided at the inner end of the gear ring, a micro motor is provided at the outer end of the gear, a card slot and a card block are provided between the gear ring and the rotating thread cover, and the rotating thread cover is movably connected to the frame.

[0008] As a preferred technical solution of the present application, the outer cover tube is fixedly connected to the external threaded tube, the rotating threaded cover is threadedly connected to the external threaded tube, and the outer arc groove and the inner arc groove are through-connected, and the arc rod slides along the outer arc groove and the inner arc groove.

[0009] As a preferred technical solution of the present application, the inner movable groove is embedded in the inner end of the arc rod, and the positioning rod is fixed at the inner end of the outer arc groove. The arc rod slides along the positioning rod through the inner movable groove. The upper end of the positioning rod is fixedly connected to the lower end of the inner spring, and the upper end of the inner spring is fixed to the inner surface of the upper end of the inner movable groove.

[0010] As a preferred technical solution of the present application, the upper end of the arc rod is fixedly connected to the magnetic slot, the inner end of the magnetic slot is magnetically connected to the magnetic block, the outer end of the magnetic block is fixedly connected to the movable end of the telescopic rod, the fixed end of the telescopic rod is fixed to the outer end of the rotating ring, and the rotating ring rotates along the rotating slot.

[0011] As a preferred technical solution of the present application, multiple groups of telescopic rods are provided, and the multiple groups of telescopic rods are arranged in a circular array along the rotating ring. The inner arc groove and the outer arc groove correspond to the telescopic rods one by one, and the movable ends of the telescopic rods are fixedly connected to the gear ring.

[0012] As a preferred technical solution of the present application, the gear ring is movably connected to the rotating threaded cover via a slot and a block, the gear ring is meshingly connected to the gear, and the outer end of the gear is movably connected to the micro motor.

[0013] As a preferred technical solution of the present application, it also includes a seamless component, which is used to hide the opening after the outer cover tube is covered. The seamless component includes an arc-shaped plate group located at the rear end of the outer cover tube, the front and rear ends of the arc-shaped plate group are respectively provided with an outer sliding rod, an inner sliding rod and a linkage groove, the inner end of the arc-shaped plate group is provided with an outer air groove and an inner air groove, the inner end of the inner air groove is provided with a positioning inclined plate, and the rear end of the arc-shaped plate group is provided with a movable ring plate.

[0014] As the preferred technical solution of the present application, the arc plate group is arranged in a circular array, and the front and rear ends of the arc plate group are respectively fixedly connected to the outer sliding rod and the inner sliding rod, and the outer ends of the outer sliding rod and the inner sliding rod slide along the linkage groove respectively, and the linkage groove at the front end is embedded in the rear end inner surface of the outer cover tube, and the linkage groove at the rear end is embedded in the inner end of the movable ring plate. The outer air groove and the inner air groove are connected through, and the inner end of the inner air groove is in contact with the positioning inclined plate, and the positioning inclined plate is fixed to the inner end of the frame.

[0015] As a preferred technical solution of the present application, an outer spring is provided at the rear end of the movable ring plate, an outer tube is provided at the outer end of the outer spring, the rear end of the movable ring plate is fixedly connected to the front end of the outer spring, the outer tube is wrapped around the outer end of the outer spring, and the outer tube is fixed to the inner end of the frame.

[0016] As a preferred technical solution of the present application, the inner end of the battery box compartment is movably connected to the linkage rod, the battery box compartment and the power-assisting battery are movably connected through the linkage rod, the outer end of the linkage rod is movably provided with the power-assisting battery, both ends of the power-assisting battery are provided with silicone sheets, the outer end of the silicone sheet is movably attached to the inner wall of the battery box compartment, the inner end of the battery box compartment is provided with a ventilation compartment, the ventilation compartment is provided with fire-extinguishing gas, and the front end of the ventilation compartment is provided with a hot-melt film.

[0017] Compared with the prior art, the present invention has the following beneficial effects: In the scheme of this application: By setting up the closed component and the traceless component, the battery box compartment can be well covered in the frame of the electric assisted bicycle to achieve complete concealment and prevent theft. Secondly, through the inner air groove and the outer air groove in the traceless component, the fire extinguishing gas can be hidden and moved to achieve traceless treatment, and a fire extinguishing air cavity is added in the battery box compartment to ensure the safety of the battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the overall structure of a safe hidden battery box for an electric-assisted bicycle provided in this application; Figure 2 A schematic diagram of the side section structure of a safe hidden battery box for an electric-assisted bicycle provided in the present application; Figure 3 A safe hidden battery box for an electric bicycle provided in this application Figure 2 A is a schematic diagram of the enlarged structure of the middle part; Figure 4 A schematic diagram of a closed side section structure of a battery box compartment of a safe hidden battery box for an electric power-assisted bicycle provided in the present application; Figure 5 A schematic diagram of the front cross-sectional structure of an arc-shaped plate assembly of a safe hidden battery box for an electric power-assisted bicycle provided in the present application; Figure 6 A schematic diagram of the side section structure of the outer cylinder of a safe hidden battery box for an electric power-assisted bicycle provided in the present application; Figure 7 A safe hidden battery box for an electric bicycle provided in this application Figure 6 Front section structure diagram.

[0019] Indicated in the figure: 1. Battery box compartment; 2. Frame; 3. Rotating threaded cover; 4. Outer arc groove; 5. Inner arc groove; 6. Telescopic rod; 7. Magnetic block; 8. Arc rod; 9. Magnetic groove; 10. Rotating groove; 11. Rotating ring; 12. Gear ring; 13. Gear; 14. Micro motor; 15. Inner spring; 16. Inner movable groove; 17. Positioning rod; 18. Outer cover cylinder; 19. Outer threaded cylinder; 20. Arc plate group; 21. Outer slide rod; 22. Inner slide rod; 23. Inner air groove; 24. Outer air groove; 25. Positioning inclined plate; 26. Outer spring; 27. Outer cylinder; 28. Power-assist battery; 29. ​​Linkage rod; 30. Silicone sheet. DETAILED DESCRIPTION

[0020] To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them.

[0021] Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the invention claimed for protection, but merely represents some embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. It should be noted that the embodiments of the present invention and the features and technical solutions in the embodiments can be combined with each other without conflict.

[0022] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0023] like Figure 1-Figure 4 As shown, this embodiment provides a safe hidden battery box for an electric power-assisted bicycle, including a battery box compartment 1, with a frame 2 welded to both ends of the battery box compartment 1, and also includes: A closing assembly is used for the switch of the battery box compartment 1. The closing assembly includes an outer cover tube 18 located at the outer end of the battery box compartment 1. The front end of the outer cover tube 18 is provided with an external threaded tube 19. The outer end of the external threaded tube 19 is provided with a rotating threaded cover 3. The inner end of the rotating threaded cover 3 is provided with an outer arc groove 4. The inner end of the external threaded tube 19 is provided with an inner arc groove 5. The inner end of the outer arc groove 4 is provided with an arc rod 8. The inner end of the arc rod 8 is provided with an inner movable groove 16. The inner end of the inner movable groove 16 is provided with an inner spring 15. The inner spring 15 is provided with an inner spring 15. A positioning rod 17 is provided at the lower end, a magnetic groove 9 is provided at the upper end of the arc rod 8, a magnetic block 7 is provided at the inner end of the magnetic groove 9, a telescopic rod 6 is provided at the outer end of the magnetic block 7, a rotating ring 11 is provided at the outer end of the telescopic rod 6, a rotating groove 10 is provided at the outer end of the rotating ring 11, a gear ring 12 is provided at the outer end of the magnetic block 7, a gear 13 is provided at the inner end of the gear ring 12, a micro motor 14 is provided at the outer end of the gear 13, a slot and a block are provided between the gear ring 12 and the rotating thread cover 3, and the rotating thread cover 3 is movably connected to the frame 2.

[0024] The outer cover tube 18 is fixedly connected to the outer threaded tube 19 , the rotating threaded cover 3 is threadedly connected to the outer threaded tube 19 , and the outer arc groove 4 is through-connected to the inner arc groove 5 , and the arc rod 8 slides along the outer arc groove 4 and the inner arc groove 5 .

[0025] The inner movable groove 16 is embedded in the inner end of the arc rod 8, and the positioning rod 17 is fixed to the inner end of the outer arc groove 4. The arc rod 8 slides along the positioning rod 17 through the inner movable groove 16. The upper end of the positioning rod 17 is fixedly connected to the lower end of the inner spring 15. The upper end of the inner spring 15 is fixed to the inner surface of the upper end of the inner movable groove 16.

[0026] The upper end of the arc rod 8 is fixedly connected to the magnetic groove 9, the inner end of the magnetic groove 9 is magnetically connected to the magnetic block 7, the outer end of the magnetic block 7 is fixedly connected to the movable end of the telescopic rod 6, the fixed end of the telescopic rod 6 is fixed to the outer end of the rotating ring 11, and the rotating ring 11 rotates along the rotating groove 10.

[0027] There are multiple groups of telescopic rods 6 , which are arranged in a circular array along the rotating ring 11 . The inner arc grooves 5 and the outer arc grooves 4 correspond to the telescopic rods 6 one by one, and the movable ends of the telescopic rods 6 are fixedly connected to the gear ring 12 .

[0028] The gear ring 12 is movably connected to the rotating threaded cover 3 via a clamping groove and a clamping block, the gear ring 12 is meshingly connected to the gear 13, and the outer end of the gear 13 is movably connected to the micro motor 14.

[0029] During use, through the closing component, when the battery box compartment 1 needs to be closed, the telescopic rod 6 is extended, the magnetic block 7 at the front end and the magnetic groove 9 are magnetically attracted to each other, and the toothed ring 12 fixed to the movable end of the telescopic rod 6 and the rotating threaded cover 3 are mutually engaged through the clamping block and the clamping groove. At this time, the arc rod 8 is completely moved into the outer arc groove 4, the inner spring 15 located in the outer arc groove 4 is opened, and the outer cover tube 18 is recovered by the elasticity of the outer tube 27 and the outer spring 26 (the outer cover tube 18 can only move left and right but not rotate), the outer threaded tube 19 and the rotating threaded cover 3 are in contact with each other, and the micro motor 14 drives the gear 13 to rotate, and the rotation of the gear 13 drives the toothed ring 12 to rotate, and the rotation of the toothed ring 12 drives the rotating threaded cover 3 connected with the outer end clamping groove and the clamping block to rotate, and the rotating threaded cover 3 is threadedly connected with the outer threaded tube 19, which promotes the threaded connection between the outer threaded tube 19 and the rotating threaded cover 3 to be stable; After the threaded connection between the external threaded barrel 19 and the rotating threaded cover 3 is closed, the telescopic rod 6 retracts, the magnetic block 7 and the magnetic slot 9 are separated (the clamping block and the clamping slot are separated at the same time), and the arc rod 8 corresponding to the magnetic slot 9 moves downward under the spring of the inner spring 15, and the lower end of the arc rod 8 enters the inner arc slot 5. At this time, the connection between the external threaded barrel 19 and the rotating threaded cover 3 is stable, which can well cover and hide the battery box compartment 1 to prevent the battery from being stolen.

[0030] like Figure 5-Figure 7 As shown, as a preferred embodiment, on the basis of the above-mentioned method, it further includes a seamless component for hiding the opening after the outer cover tube 18 covers it. The seamless component includes an arc plate group 20 located at the rear end of the outer cover tube 18, and the front and rear ends of the arc plate group 20 are respectively provided with an outer slide bar 21, an inner slide bar 22 and a linkage groove, the inner end of the arc plate group 20 is provided with an outer air groove 24 and an inner air groove 23, the inner end of the inner air groove 23 is provided with a positioning inclined plate 25, and the rear end of the arc plate group 20 is provided with a movable ring plate.

[0031] The arc plate group 20 is arranged in a circular array, and the front and rear ends of the arc plate group 20 are fixedly connected to the outer sliding rod 21 and the inner sliding rod 22 respectively. The outer ends of the outer sliding rod 21 and the inner sliding rod 22 slide along the linkage groove respectively. The linkage groove at the front end is embedded in the rear end inner surface of the outer cover tube 18, and the linkage groove at the rear end is embedded in the inner end of the movable ring plate. The outer air groove 24 and the inner air groove 23 are connected through, and the inner end of the inner air groove 23 is in contact with the positioning inclined plate 25, and the positioning inclined plate 25 is fixed to the inner end of the frame 2.

[0032] The setting of the traceless assembly can expand outwards through the arc plate group 20 at the rear end after the outer cover tube 18 is threadedly closed by the outer thread tube 19 and the rotating thread cover 3, so as to cover the recessed part of the frame 2 and better hide the battery box compartment 1. In this process: When the external threaded barrel 19 moves to the left, the inner gas groove 23 in the arc plate group 20 is contacted by the positioning inclined plate 25 in the frame 2, pushing the fire extinguishing gas in the inner gas groove 23 into the outer gas groove 24, causing the outer gas groove 24 to swell outward. The outer gas groove 24 and the inner gas groove 23 are both made of elastic rubber material, which can be well deformed. After the inner gas groove 23 is compressed, the gas will not rebound. When the external threaded barrel 19 is completely threadedly connected with the rotating threaded cover 3, the connection between the inner gas groove 23 and the outer gas groove 24 is fixed by the positioning inclined plate 25, and the outer gas groove 24 is completely bulged, pushing the outer end of the arc plate group 20 to slide on the outer slide bar 21 and the inner slide bar 22 on the linkage groove until the two adjacent ends in the arc plate group 20 are closed and sealed, thereby forming a traceless concealment on the surface of the frame 2, which can be very good at preventing theft; When the battery box compartment 1 needs to be opened, the external threaded barrel 19 and the rotating threaded cover 3 rotate the external threaded barrel 19 in the opposite direction to move, the inner air groove 23 and the outer air groove 24 are ventilated, and the gas enters the inner air groove 23 along the outer air groove 24, the expansion of the outer air groove 24 is reduced, and then the arc plate group 20 contracts inwardly. In order to ensure that the arc plate group 20 can be retracted and extended more autonomously, an elastic component such as a spring can be added to the linkage groove to facilitate the arc plate group 20 to contract well when the gas in the outer air groove 24 is reduced.

[0033] like Figure 2 As shown, as a preferred embodiment, on the basis of the above method, further, the rear end of the movable ring plate is provided with an outer spring 26, the outer end of the outer spring 26 is provided with an outer tube 27, the rear end of the movable ring plate is fixedly connected to the front end of the outer spring 26, the outer tube 27 is wrapped around the outer end of the outer spring 26, and the outer tube 27 is fixed to the inner end of the frame 2.

[0034] The inner end of the battery box compartment 1 is movably connected to the linkage rod 29, and the battery box compartment 1 and the booster battery 28 are movably connected through the linkage rod 29. The outer end of the linkage rod 29 is movably provided with the booster battery 28. Silicone sheets 30 are provided at both ends of the booster battery 28. The outer end of the silicone sheet 30 is movably attached to the inner wall of the battery box compartment 1. A ventilation compartment is provided at the inner end of the battery box compartment 1. Fire extinguishing gas is injected into the ventilation compartment, and a hot-melt film is provided at the front end of the ventilation compartment.

[0035] Silicone sheets 30 are installed at both ends of the power-assisting battery 28. When the power-assisting battery 28 rotates along the linkage rod 29, it can drive the air flow in the battery box compartment 1 to reduce the deposition of internal dust. In addition, a ventilation compartment is added to the inner end of the battery box compartment 1. When the battery spontaneously combusts, the hot melt film can be melted, and the fire-extinguishing gas can quickly enter the battery box compartment 1 through the ventilation compartment to achieve preliminary fire extinguishing.

[0036] The movement of the micro motor 14 and the telescopic rod 6 is controlled by the key and the lock of the electric assisted bicycle. When the battery box compartment 1 is controlled to be opened, the telescopic rod 6 moves first and then the micro motor 14 moves. When the battery box compartment 1 is controlled to be closed, the telescopic rod 6 moves after the micro motor 14 completes the movement.

[0037] When the present application is in use: through the closing component, when the battery box compartment 1 needs to be closed, the telescopic rod 6 is extended, the magnetic block 7 at the front end and the magnetic groove 9 are magnetically attracted to each other, and the toothed ring 12 fixed to the movable end of the telescopic rod 6 and the rotating threaded cover 3 are mutually engaged through the clamping block and the clamping groove. At this time, the arc rod 8 is completely moved into the outer arc groove 4, the inner spring 15 located in the outer arc groove 4 is opened, and the outer cover tube 18 is recovered by the elasticity of the outer tube 27 and the outer spring 26 (the outer cover tube 18 can only move left and right but not rotate), and the outer threaded tube 19 is connected with the rotating threaded cover 3. The threaded covers 3 are in contact with each other, the micro motor 14 drives the gear 13 to rotate, the gear 13 rotates to drive the gear ring 12 to rotate, the gear ring 12 rotates, drives the rotating threaded cover 3 connected with the outer end slot and the block to rotate, the rotating threaded cover 3 is threadedly connected with the external threaded barrel 19, and the threaded connection between the external threaded barrel 19 and the rotating threaded cover 3 is promoted to be stable; when the external threaded barrel 19 moves to the left, the inner gas groove 23 in the arc plate group 20 is contacted by the positioning inclined plate 25 in the frame 2, pushing the fire extinguishing gas in the inner gas groove 23 into the outer gas groove 24 , so that the outer air groove 24 bulges outwards. Both the outer air groove 24 and the inner air groove 23 are made of elastic rubber material and can be deformed well. After the inner air groove 23 is compressed, the gas will not rebound. When the outer threaded tube 19 is completely threadedly connected with the rotating threaded cover 3, the connection between the inner air groove 23 and the outer air groove 24 is fixed by the positioning inclined plate 25. The outer air groove 24 is completely bulged, pushing the outer end of the arc plate group 20 to slide on the outer slide bar 21 and the inner slide bar 22 on the linkage groove until the two adjacent ends of the arc plate group 20 are closed. The outer threaded barrel 19 and the rotating threaded cover 3 are sealed, so that a traceless concealment is formed on the surface of the vehicle frame 2, which can effectively prevent theft; after the threaded connection between the external threaded barrel 19 and the rotating threaded cover 3 is closed, the telescopic rod 6 retracts, the magnetic block 7 and the magnetic slot 9 are separated (the clamping block and the clamping slot are separated at the same time), and the arc rod 8 corresponding to the magnetic slot 9 moves downward under the elasticity of the inner spring 15, and the lower end of the arc rod 8 enters the inner arc slot 5. At this time, the connection between the external threaded barrel 19 and the rotating threaded cover 3 is stable, which can well cover and hide the battery box compartment 1 to prevent the battery from being stolen; When the battery box compartment 1 needs to be opened, the telescopic rod 6 pushes the magnetic block 7 and the magnetic groove 9 to attract each other. At this time, the arc rod 8 slides in the outer arc groove 4, and the external threaded tube 19 and the rotating threaded cover 3 are threadedly connected. The external threaded tube 19 and the rotating threaded cover 3 rotate the external threaded tube 19 in the opposite direction to move, and the inner gas groove 23 and the outer gas groove 24 are ventilated, and the gas enters the inner gas groove 23 along the outer gas groove 24. The bulging of the outer gas groove 24 is reduced, and then the arc plate group 20 shrinks inward. In order to ensure that the retraction and release of the arc plate group 20 can be more autonomous, an elastic component such as a spring can be added to the linkage groove, so that when the gas in the outer gas groove 24 is reduced, the arc plate group 20 can shrink well. When the external threaded tube 19 and the rotating threaded cover 3 are completely separated, the outer spring 26 rebounds in the outer tube 27, driving the arc plate group 20 to enter the frame 2, and the external threaded tube 19 covers the original position of the arc plate group 20, and then the power-assisting battery 28 is operated.

[0038] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. Although the present invention has been described in detail with reference to the above embodiments, the present invention is not limited to the above specific implementation methods. Therefore, any modification or equivalent replacement of the present invention; and all technical solutions and improvements thereof that do not depart from the spirit and scope of the invention are included in the scope of the claims of the present invention.

Claims

1. A safe hidden battery box for an electric power-assisted bicycle, comprising a battery box compartment (1), characterized in that: The battery box compartment (1) has a frame (2) welded to both ends thereof, and further comprises: A closing assembly, used for the switch of a battery box compartment (1), the closing assembly comprising an outer cover tube (18) located at the outer end of the battery box compartment (1), the front end of the outer cover tube (18) being provided with an external threaded tube (19), the outer end of the external threaded tube (19) being provided with a rotating threaded cover (3), the inner end of the rotating threaded cover (3) being provided with an external arc-shaped groove (4), the inner end of the external threaded tube (19) being provided with an internal arc-shaped groove (5), the inner end of the external arc-shaped groove (4) being provided with an arc-shaped rod (8), the inner end of the arc-shaped rod (8) being provided with an inner movable groove (16), the inner end of the inner movable groove (16) being provided with an inner spring (15), the lower end of the inner spring (15) being provided with A positioning rod (17), wherein the upper end of the arc rod (8) is provided with a magnetic groove (9), the inner end of the magnetic groove (9) is provided with a magnetic block (7), the outer end of the magnetic block (7) is provided with a telescopic rod (6), the outer end of the telescopic rod (6) is provided with a rotating ring (11), the outer end of the rotating ring (11) is provided with a rotating groove (10), the outer end of the magnetic block (7) is provided with a gear ring (12), the inner end of the gear ring (12) is provided with a gear (13), the outer end of the gear (13) is provided with a micro motor (14), a slot and a block are provided between the gear ring (12) and the rotating thread cover (3), and the rotating thread cover (3) is movably connected to the frame (2).

2. The safe hidden battery box for an electric-assisted bicycle according to claim 1, characterized in that: The outer cover tube (18) is fixedly connected to the outer threaded tube (19), the rotating threaded cover (3) is threadedly connected to the outer threaded tube (19), and the outer arc groove (4) and the inner arc groove (5) are through-connected, and the arc rod (8) slides along the outer arc groove (4) and the inner arc groove (5).

3. The safe hidden battery box for an electric-assisted bicycle according to claim 2, characterized in that: The inner movable groove (16) is embedded in the inner end of the arc rod (8), and the positioning rod (17) is fixed to the inner end of the outer arc groove (4); the arc rod (8) slides along the positioning rod (17) through the inner movable groove (16); the upper end of the positioning rod (17) is fixedly connected to the lower end of the inner spring (15); and the upper end of the inner spring (15) is fixed to the inner surface of the upper end of the inner movable groove (16).

4. The safe hidden battery box for an electric-assisted bicycle according to claim 3, characterized in that: The upper end of the arc rod (8) is fixedly connected to the magnetic slot (9), the inner end of the magnetic slot (9) is magnetically connected to the magnetic block (7), the outer end of the magnetic block (7) is fixedly connected to the movable end of the telescopic rod (6), the fixed end of the telescopic rod (6) is fixed to the outer end of the rotating ring (11), and the rotating ring (11) rotates along the rotating slot (10).

5. The safe hidden battery box for an electric-assisted bicycle according to claim 4, characterized in that: The telescopic rods (6) are provided in a plurality of groups, and the plurality of groups of telescopic rods (6) are arranged in a ring array along the rotating ring (11); the inner arc-shaped grooves (5) and the outer arc-shaped grooves (4) correspond to the telescopic rods (6) one by one, and the movable ends of the telescopic rods (6) are fixedly connected to the gear ring (12).

6. The safe hidden battery box for an electric-assisted bicycle according to claim 5, characterized in that: The gear ring (12) is movably connected to the rotating threaded cover (3) via a clamping groove and a clamping block, the gear ring (12) is meshingly connected to the gear (13), and the outer end of the gear (13) is movably connected to the micro motor (14).

7. The safe hidden battery box for an electric-assisted bicycle according to claim 6, characterized in that: It also includes a traceless component for hiding the opening after the outer cover tube (18) covers it. The traceless component includes an arc plate group (20) located at the rear end of the outer cover tube (18). The front and rear ends of the arc plate group (20) are respectively provided with an outer slide bar (21), an inner slide bar (22) and a linkage groove. The inner end of the arc plate group (20) is provided with an outer air groove (24) and an inner air groove (23). The inner end of the inner air groove (23) is provided with a positioning inclined plate (25). The rear end of the arc plate group (20) is provided with a movable ring plate.

8. The safe hidden battery box for an electric-assisted bicycle according to claim 7, characterized in that: The arc plate group (20) is arranged in a circular array, and the front and rear ends of the arc plate group (20) are respectively fixedly connected to the outer slide bar (21) and the inner slide bar (22), and the outer ends of the outer slide bar (21) and the inner slide bar (22) slide along the linkage groove respectively, and the linkage groove at the front end is embedded in the rear end inner surface of the outer cover tube (18), and the linkage groove at the rear end is embedded in the inner end of the movable ring plate, and the outer air groove (24) and the inner air groove (23) are connected through, and the inner end of the inner air groove (23) is in contact with the positioning inclined plate (25), and the positioning inclined plate (25) is fixed to the inner end of the frame (2).

9. The safe hidden battery box for an electric-assisted bicycle according to claim 8, characterized in that: An outer spring (26) is provided at the rear end of the movable ring plate, an outer tube (27) is provided at the outer end of the outer spring (26), the rear end of the movable ring plate is fixedly connected to the front end of the outer spring (26), the outer tube (27) is wrapped around the outer end of the outer spring (26), and the outer tube (27) is fixed to the inner end of the vehicle frame (2).

10. The safe hidden battery box for an electric-assisted bicycle according to claim 9, characterized in that: The inner end of the battery box compartment (1) is movably connected to the linkage rod (29), the battery box compartment (1) and the booster battery (28) are movably connected via the linkage rod (29), the outer end of the linkage rod (29) is movably provided with the booster battery (28), both ends of the booster battery (28) are provided with silicone sheets (30), the outer ends of the silicone sheets (30) are movably attached to the inner wall of the battery box compartment (1), the inner end of the battery box compartment (1) is provided with a ventilation compartment, fire extinguishing gas is injected into the ventilation compartment, and a hot melt film is provided at the front end of the ventilation compartment.

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