Battery cover structure of electronic padlock

By designing a battery cover structure with the motor-driven slider sliding in the electronic padlock, the controllable opening of the battery cover is achieved, solving the problem of easily lost or stolen batteries, and improving safety and convenience.

CN119754630APending Publication Date: 2025-04-04XIAMEN MAKE IOT TECH CO LTD
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Patent Information

Application Number
CN202411825529.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-12
Publication Date
2025-04-04

AI Technical Summary

Technical Problem

The battery cover of existing electronic padlocks is easily removed, resulting in the loss or stolen battery, and there is a lack of effective anti-theft measures.

Method used

An electronic padlock battery cover structure is designed, using components such as motor, driven wheel, slider, lock block, lock lever and spring. The motor drives the slider to slide by input commands to unlock the lock lever, allowing the battery cover to be opened controllable, realizing the safe replacement and anti-theft functions of the battery.

Benefits of technology

The controllable opening of the battery cover is realized, and users can safely replace the battery by entering instructions, effectively preventing the battery from being lost or stolen, and improving the safety and convenience of the electronic padlock.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention discloses a battery cover structure of an electronic padlock, which realizes controllable opening of the battery cover to achieve the purpose of battery theft prevention. The structure comprises a lock body, a battery cover, a motor, a driven wheel, a slider, a locking block, a locking rod, a slider spring, a locking spring and a locking rod spring; the lock body is provided with a battery compartment, and the battery cover is detachably mounted on the port of the battery compartment; the motor is mounted in the lock body and is used to drive the driven wheel to rotate; the slider, the locking block and the locking rod are respectively slidably fitted in the lock body; the slider is transmission-connected to the driven wheel and is provided with a yielding recess; the locking block is opposite to the battery cover and restricts the battery cover from escaping from the port of the battery compartment when it abuts against the battery cover; the locking rod is arranged between the slider and the locking block, and when the locking rod is misaligned with the yielding recess, it abuts against the locking block to restrict its sliding, and when the locking rod is opposite to the yielding recess, the sliding of the locking block is unlocked; the slider spring, the locking spring and the locking rod spring act on the slider, the locking block and the locking rod respectively.
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Description

Technical Field

[0001] The invention belongs to the technical field of electronic padlocks, and in particular relates to a battery cover structure of an electronic padlock. Background Art

[0002] An electronic padlock is a padlock controlled by electronic technology. It usually contains a small electronic device that can be unlocked and locked by password, remote control, fingerprint recognition, RFID (radio frequency identification), etc. It is safer and more convenient than traditional mechanical locks. Electronic padlocks are widely used in various occasions that require security protection, such as door locks, suitcases, cabinets, etc.

[0003] Electronic padlocks are usually powered by batteries, so a detachable battery cover is required. In the prior art, the battery cover is installed on the lock body by threaded connection, rotating clamping connection or snap connection, and can be easily removed, which faces the problem of easy loss and theft of batteries. Summary of the invention

[0004] The main purpose of the present invention is to provide a battery cover structure of an electronic padlock, which solves the problems existing in the prior art and can realize the controllable opening of the battery cover to prevent the battery from being stolen.

[0005] In order to achieve the above object, the solution of the present invention is: A battery cover structure of an electronic padlock, comprising a lock body, a battery cover, a motor, a driven wheel, a slider, a locking block, a locking rod, a slider spring, a locking spring and a locking rod spring; the lock body is provided with a battery compartment, and the battery cover is detachably mounted on the port of the battery compartment; the motor is mounted in the lock body and is used to drive the driven wheel to rotate; the slider, the locking block and the locking rod are respectively slidably fitted in the lock body; the slider is transmission-connected to the driven wheel and is provided with a yielding recess; the locking block is opposite to the battery cover and restricts the battery cover from being disengaged from the port of the battery compartment when abutting against the battery cover; the locking rod is arranged between the slider and the locking block, and when the locking rod is misaligned with the yielding recess, it abuts against the locking block to restrict its sliding, and when the locking rod is opposite to the yielding recess, the sliding of the locking block is unlocked; the slider spring, the locking spring and the locking rod spring act on the slider, the locking block and the locking rod respectively.

[0006] The slider spring is used to drive the slider to displace the recess and the lock rod; the locking spring is used to drive the locking block to abut against the battery cover; and the lock rod spring is used to drive the lock rod to abut against the locking block.

[0007] The circumferential surface of the battery cover is provided with a limiting ring groove, and a connecting port connecting the side surface of the limiting ring groove and the inner end surface of the battery cover; the port of the battery compartment is provided with a limiting protrusion that enters the limiting ring groove through the connecting port and movably fits in the limiting ring groove; the circumferential surface of the battery cover is provided with a stop groove; the locking block is provided with a stop convex portion matching the stop groove, and the stop convex portion movably abuts against the circumferential surface of the battery cover under the elastic force of the locking spring; the stop groove is a V-shaped groove.

[0008] Preferably, the upper and lower surfaces of the anti-rotation protrusion are respectively a plane and an inclined plane; under the elastic force of the locking spring, the plane blocks the moving path of the battery.

[0009] The output shaft of the motor is coaxially connected with a driving wheel, and the driving wheel is meshed with the driven wheel.

[0010] The surface of the slider is provided with a convex column, and the driven wheel is provided with a hook; the hook is movably hooked on the convex column as the driven wheel rotates, and pulls the slider to move in the direction of compressing the slider spring.

[0011] The locking block is recessed on one side facing the locking rod to form a limiting groove. Under the elastic force of the locking rod spring, the locking rod abuts against the surface of the locking block and is embedded in the limiting groove. When one end of the locking rod is misaligned with the yielding recess, the other end thereof cannot escape from the limiting groove. The limiting groove is a spherical groove.

[0012] The battery cover structure of the electronic padlock also includes a lock beam installed on the lock body, and a lock beam spring for popping out the lock beam; the lock beam is provided with a locking groove; a movable steel ball is provided in the lock body, and the steel ball is driven by a cam that rotates synchronously with the driven wheel; when the cam rotates, the steel ball is pushed into the locking groove to achieve locking, or the movement of the steel ball is given way to achieve unlocking of the lock beam.

[0013] Preferably, a driving circuit board is provided in the lock body, and the rotating shaft of the cam is passed through the driving circuit board and connected to the driven wheel key; the driving circuit board is electrically connected to the motor and is provided with a first Hall switch and a second Hall switch; the lock beam and the cam are respectively embedded with a first magnet and a second magnet that inductively cooperate with the first Hall switch and the second Hall switch.

[0014] Preferably, the battery cover structure of the electronic padlock also includes a main circuit board with Bluetooth function; the lock body includes a lock shell, a base and a bottom cover assembled from top to bottom, and a fixing seat and a cam seat installed in the lock shell; the lock shell and the fixing seat and the cam seat therein constitute the upper body of the electronic padlock, and the base and the bottom cover constitute the lower body of the electronic padlock; the motor, the driven wheel, the slider, the locking rod, the slider spring, the locking rod spring, the locking beam, the locking beam spring, the steel ball, the cam and the driving circuit board are assembled with the upper body, and the battery cover, the locking block, the locking spring and the main circuit board are assembled with the lower body, and the driving circuit board is electrically connected to the main circuit board through a connecting wire; the base and the bottom cover are made of plastic.

[0015] After adopting the above technical solution, the present invention has the following technical effects: The present invention is suitable for an electronic padlock. When a user inputs a correct instruction in a preset manner, the motor can be controlled to start, and then the driven wheel drives the slider to slide, so that the yielding recess of the slider is opposite to the locking rod. At this time, the restriction of the locking rod on the locking block is unlocked, and the locking block can slide freely in the direction of compressing the locking spring, and the opening of the battery cover is no longer restricted, and the user can remove and replace the battery. The present invention enables the user to unlock the battery cover by inputting instructions, and realize the controllable opening of the battery cover, so as to achieve the purpose of anti-theft. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional diagram of a specific embodiment of the present invention; Figure 2 An exploded view of a specific embodiment of the present invention; Figure 3 A schematic diagram of a part of the structure of a specific embodiment of the present invention Figure 1 ; Figure 4 A schematic diagram of a part of the structure of a specific embodiment of the present invention Figure 2 ; Figure 5 A three-dimensional diagram of a driving wheel, a driven wheel and a slider according to a specific embodiment of the present invention; Figure 6 A three-dimensional diagram of a locking block according to a specific embodiment of the present invention; Figure 7 It is a schematic diagram of the split design of a specific embodiment of the present invention; Figure 8 It is a schematic diagram of electrical connection of a specific embodiment of the present invention; Fig. 9 It is a schematic diagram of waterproof design of a specific embodiment of the present invention; Description of Figure Numbers: 1-lock body; 1a-lock shell; 1b-base; 1c-bottom cover; 1d-fixed seat; 1e-cam seat; 11-battery compartment; 111-limiting protrusion; 2-battery cover; 21-limiting ring groove; 22-connecting port; 23-stop groove; 3-motor; 4-driven wheel; 41-hook; 5-slider; 51-displacement recess; 52-convex column; 6-locking block; 61-stop convex part; 611-plane; 612-inclined surface; 62-limiting groove; 7-locking rod; 8-slider spring; 9-locking spring; 10-locking rod spring spring; 20-driving wheel; 30-locking beam; 301-locking groove; 40-locking beam spring; 50-steel ball; 60-cam; 70-driving circuit board; 701-first Hall switch; 702-second Hall switch; 80-first magnet; 90-second magnet; 100-main circuit board; 1001-conductive sheet; 200-connecting line; 300-positive pole seat; 400-positive pole spring; 500-negative pole spring; 600-wake-up button; 700-button; a-battery; b, c-glue filling space; d-sealing ring. DETAILED DESCRIPTION

[0017] In order to further explain the technical solution of the present invention, the present invention is described in detail below through specific embodiments.

[0018] refer to Figure 1-9 As shown, a specific embodiment discloses an electronic padlock, which involves a battery cover structure and an electrical connection structure of the electronic padlock, both of which are related to the battery cover and its matching parts. The battery cover structure includes a lock body 1, a battery cover 2, a motor 3, a driven wheel 4, a slider 5, a locking block 6, a locking rod 7, a slider spring 8, a locking spring 9 and a locking rod spring 10; The lock body 1 is provided with a battery compartment 11 for accommodating a battery a, and the battery cover 2 is detachably mounted on the port of the battery compartment 11; The motor 3 is installed in the lock body 1 and is used to drive the driven wheel 4 to rotate; The slider 5, the locking block 6, and the locking rod 7 are respectively slidably matched in the lock body 1; the slider 5 is transmission-connected to the driven wheel 4, and a recessed portion 51 is provided on the slider 5; the locking block 6 is opposite to the battery cover 2, and when it abuts against the battery cover 2, it restricts the battery cover 2 from being disengaged from the port of the battery compartment 11; the locking rod 7 is arranged between the slider 5 and the locking block 6, and when the locking rod 7 is misaligned with the recessed portion 51, it abuts against the locking block 6 to restrict its sliding, and when the locking rod 7 is opposite to the recessed portion 51, the sliding of the locking block 6 is unlocked; The slider spring 8 is used to drive the slider 5 to displace the recess 51 from the locking rod 7, so that the locking rod 7 keeps restricting the locking block 6 in a normal state (when the motor 2 is not running), and the battery cover 2 cannot be disassembled; The locking spring 9 is used to drive the locking block 6 to abut against the battery cover 2; The locking rod spring 10 is used to drive the locking rod 7 to abut against the locking block 6 .

[0019] Through the above scheme, the present invention is suitable for electronic padlocks. When the user inputs the correct command through a password, a remote control, fingerprint recognition, RFID (radio frequency identification), etc., the motor 2 can be controlled to start, and then the driven wheel 4 drives the slider 5 to slide, so that the recessed portion 51 of the slider 5 is opposite to the locking rod 7. At this time, the restriction of the locking rod 7 on the locking block 6 is unlocked, and the locking block 6 can slide freely in the direction of the compressed locking spring 9, and the opening of the battery cover 2 is no longer restricted. The user can replace the battery a; the present invention enables the user to unlock the battery cover 2 by inputting a command, and realize the controllable opening of the battery cover 2, so as to achieve the purpose of anti-theft.

[0020] Specific embodiments of the present invention are shown below.

[0021] The battery cover 2 is detachably mounted with the lock body 1 by means of rotational engagement, specifically: the circumferential surface of the battery cover 2 is provided with a limiting ring groove 21, and a connecting port 22 connecting the side of the limiting ring groove 21 and the inner end surface of the battery cover 2; the port of the battery compartment 11 is provided with a limiting protrusion 111 that enters the limiting ring groove 21 through the connecting port 22 and movably fits in the limiting ring groove 21. Therefore, the function of the locking block 6 is to limit the rotation of the battery cover 2, that is, to limit the rotation of the battery cover 2 to the angle at which the connecting port 22 and the limiting protrusion 111 are relative.

[0022] Furthermore, the battery cover 2 is provided with a rotation-stopping groove 23 on its circumference; the locking block 6 is provided with a rotation-stopping protrusion 61 matching the rotation-stopping groove 23, and the rotation-stopping protrusion 61 movably abuts against the circumference of the battery cover 2 under the elastic force of the locking spring 9. In this embodiment, the rotation-stopping groove 23 is a V-shaped groove, and when the locking rod 7 does not restrict the sliding of the locking block 6, the rotation-stopping protrusion 61 can be disengaged from the rotation-stopping groove 23 by twisting the battery cover 2.

[0023] Secondly, see Figure 6 , with the lower surface of the battery cover 2 installed on the lock body 1 as the reference direction, the upper and lower surfaces of the anti-rotation protrusion 61 are respectively a plane 611 and an inclined surface 612, and the plane 611 blocks the moving path of the battery a under the elastic force of the locking spring 9. When the battery a is loaded into the battery compartment 11, the locking block 6 can compress the locking spring 9 under the action of the inclined surface 612 to move backward, so that the battery a can be directly pushed into the battery compartment 11 without manually pressing the locking block 6 to move it backward; when the battery cover 2 is opened, the battery a will be blocked by the plane 611 and will not fall out of the battery compartment 11 immediately, avoiding damage or hitting people. At this time, the user can only take out the battery a by manually pressing the locking block 6 to move it backward.

[0024] The output shaft of the above-mentioned motor 3 is coaxially connected to the driving wheel 20, and the driving wheel 20 is meshed with the driven wheel 4, so that the motor 3 drives the driven wheel 4, and the position of the driven wheel 4 and the motor 3 is no longer limited to the end position of the motor 3. The installation position is more flexible, such as being able to be set on the side of the motor 3, which is conducive to the miniaturization of the lock product.

[0025] The surface of the slider 5 is provided with a protruding column 52, and the driven wheel 4 is provided with a hook 41; the hook 41 is hooked on the protruding column 52 as the driven wheel 4 rotates, and pulls the slider 5 to move in the direction of compressing the slider spring 8, so that the lock rod 7 is opposite to the recessed portion 51. In this embodiment, the recessed portion 51 is a step-shaped structure formed on the side of the slider 5 facing the lock rod 7.

[0026] The locking block 6 is recessed on one side facing the locking rod 7 to form a limiting groove 62. The locking rod 7 abuts against the surface of the locking block 6 and is embedded in the limiting groove 62 under the elastic force of the locking rod spring 10. When one end of the locking rod 7 is misaligned with the recessed portion 51, the other end of the locking rod 7 cannot escape from the limiting groove 62, thereby limiting the sliding of the locking block 6. In this embodiment, the locking rod spring 10 is sleeved on the end of the locking rod 7 facing the slider 5 and abuts against the slider 5; the limiting groove 62 is a spherical groove. When one end of the locking rod 7 is opposite to the recessed portion 51, the user can press the locking block 6 to make it retreat so that the end of the locking rod 7 can escape from the limiting groove 62 under the guidance of the spherical surface of the limiting groove 62.

[0027] The lock body 1 is provided with groove-shaped or hole-shaped structures for slidingly cooperating with the slider 5, the locking block 6 and the locking rod 7, respectively, for guiding the sliding direction of the slider 5 / locking block 6 / locking rod 7 and limiting the movement stroke. In this embodiment, the sliding grooves of the slider 5 and the locking block 6 are perpendicular to the sliding groove of the locking rod 7, and the sliding groove of the slider 5 is perpendicular to the sliding groove of the locking block 6. If the sliding groove of the locking rod 7 is defined as the Z-axis direction, the sliding grooves of the slider 5 and the locking block 6 are the Y-axis and Z-axis directions, respectively.

[0028] The present invention also includes a lock beam 30 installed on the lock body 1, and a lock beam spring 40 for popping out the lock beam 30; usually, the lock beam 30 of the electronic padlock is a U-shaped part, and a locking groove 301 is arranged on its surface; a movable steel ball 50 is arranged in the lock body 1, and the steel ball 50 is driven by a cam 60 that rotates synchronously with the driven wheel 4; when the cam 60 rotates, the steel ball 50 is pushed into the locking groove 301 to achieve locking, or the movement of the steel ball 50 is given to achieve unlocking the lock beam 30.

[0029] Furthermore, a driving circuit board 70 is provided in the lock body 1, and the rotating shaft of the cam 60 is passed through the driving circuit board 70 and connected to the driven wheel 4 to realize synchronous rotation; the driving circuit board 70 is electrically connected to the motor 3, and is provided with a first Hall switch 701 and a second Hall switch 702; the lock beam 30 and the cam 60 are respectively embedded with a first magnet 80 and a second magnet 90 that are inductively matched with the first Hall switch 701 and the second Hall switch 702. In this way, the motor state and the lock beam state can be sensed and judged, and the motor 3 can be automatically started and stopped in accordance with the corresponding program setting.

[0030] Secondly, the present invention also includes a main circuit board 100 with Bluetooth function; the lock body 1 includes a lock shell 1a, a base 1b and a bottom cover 1c assembled from top to bottom, and a fixing seat 1d and a cam seat 1e installed in the lock shell 1a; see Figure 7 The present invention comprises a lock shell 1a and a fixing seat 1d and a cam seat 1e therein to form the upper body of the electronic padlock, and a base 1b and a bottom cover 1c to form the lower body of the electronic padlock. The motor 3, driven wheel 4, slider 5, lock rod 7, slider spring 8, lock rod spring 10, lock beam 30, lock beam spring 40, steel ball 50, cam 60 and drive circuit board 70 are assembled with the upper body, and the battery cover 2, locking block 6, locking spring 9 and main circuit board 100 are assembled with the lower body. The drive circuit board 70 is electrically connected to the main circuit board 100 through a connecting line 200. Such a split structure can make the various components more compact, so that the battery a has a larger assembly space, and the capacity of the battery a can be increased. At the same time, the base 1b and the bottom cover 1c are made of plastic, which can avoid metal shielding of the signal and increase the Bluetooth and 4G signal strength on the main circuit board 100. In this embodiment, the battery compartment 11 is composed of the fixing seat 1d, the base 1b and a part of the bottom cover 1c, and the battery cover 2 is detachably connected to the bottom cover 1c; the fixing seat 1d is the main mounting seat of the upper body, and is provided with a groove or hole structure for sliding cooperation of the slider 5, the locking block 6 and the locking rod 7, and the cam 70 is installed in the cam seat 1e, and the driving circuit board 70 is located between the cam seat 1e and the fixing seat 1d; see Fig. 9 The various parts of the lock body 1 can be sealed by means of sealing rings or glue filling or a combination of the two to improve the waterproof level of the electronic lock to meet market demand. For example, a glue filling space b is set between the driving circuit board 70 and the cam seat 1e, a glue filling space c is designed between the base 1b and the main circuit board 100, and a sealing ring d is set between the lock shell 1a and the base 1b.

[0031] In some embodiments provided with a driving circuit board 70 and a main circuit board 100, in order to achieve a simpler circuit connection and save parts and structural space, the present invention also improves the electrical connection structure, specifically: The lock body 1 is provided with a driving circuit board 70 and a main circuit board 100, which are electrically connected via a connecting line 200, and the driving circuit board 70 is electrically connected to the motor 3; Figure 8 And with Figure 2 , 3 It can be seen that the inner end of the battery compartment 11 is provided with a positive electrode seat 300, on which a positive electrode spring 400 is installed, and one end of the positive electrode spring 400 is electrically connected to the driving circuit board 70; a negative electrode spring 500 is installed in the battery cover 2, the battery cover 2, the locking block 6 and the locking rod 7 are all made of conductive materials, and the main circuit board 100 is provided with a conductive sheet 1001 that is tightly fitted on the surface of the locking rod 7, and the conductive sheet 1001 always contacts the locking rod 7 with its own elasticity as the locking rod 7 slides. Thus, a circuit of the positive electrode of battery a-positive electrode spring 400-driving circuit board 70-connecting wire 200-main circuit board 100-conductive sheet 1001-locking rod 7-locking block 6-battery cover 2-negative electrode spring 500-negative electrode of battery a is formed, so that the battery a can be used to supply power to the electrical components in the electronic padlock, and the locking rod 7 can be used as a locking member and a conductive member in the electronic padlock at the same time, and the number of parts of the product is simplified, the structure is simpler, and the volume is smaller. In this embodiment, one end of the positive electrode spring 400 is led to the screw column of the positive electrode seat 300 and contacts the positive electrode pad of the driving circuit board 70. In addition, a screw passing through the driving circuit board 70 is screwed into the screw column to achieve locking, and the positive electrode pad is connected to the main circuit board 100 through the connecting wire 200.

[0032] Furthermore, the main circuit board 100 is configured with an automatic sleep function, and is provided with a wake-up button 600 electrically connected to the main circuit board 100; a key 700 opposite to the wake-up button 600 is provided on the surface of the lock body 1. When the main circuit board 100 is not working or has not been operated for a preset time, it will automatically sleep and enter a standby state to reduce unnecessary power consumption, and can be awakened by the user by pressing the key 700.

[0033] The above embodiments and drawings do not limit the product form and style of the present invention. Any appropriate changes or modifications made by ordinary technicians in the relevant technical field should be deemed to be within the patent scope of the present invention.

Claims

1. A battery cover structure for an electronic padlock, characterized in that: It includes a lock body, a battery cover, a motor, a driven wheel, a slider, a locking block, a locking rod, a slider spring, a locking spring and a locking rod spring; The lock body is provided with a battery compartment, and the battery cover is detachably mounted on a port of the battery compartment; The motor is installed in the lock body and is used to drive the driven wheel to rotate; The slider, the locking block, and the locking rod are respectively slidably fitted in the lock body; the slider is transmission-connected to the driven wheel, and is provided with a recessed portion for giving way; the locking block is opposite to the battery cover, and when it abuts against the battery cover, it limits the battery cover from coming out of the port of the battery compartment; the locking rod is arranged between the slider and the locking block, and when the locking rod is misaligned with the recessed portion for giving way, it abuts against the locking block to limit its sliding, and when the locking rod is opposite to the recessed portion for giving way, it unlocks the sliding of the locking block; The slider spring, the locking spring and the locking rod spring act on the slider, the locking block and the locking rod respectively.

2. The battery cover structure of the electronic padlock as claimed in claim 1, characterized in that: The slider spring is used to drive the slider to displace the recess and the lock rod; the locking spring is used to drive the locking block to abut against the battery cover; and the lock rod spring is used to drive the lock rod to abut against the locking block.

3. The battery cover structure of the electronic padlock as claimed in claim 1, characterized in that: The circumferential surface of the battery cover is provided with a limiting ring groove, and a connecting port connecting the side surface of the limiting ring groove and the inner end surface of the battery cover; the port of the battery compartment is provided with a limiting protrusion that enters the limiting ring groove through the connecting port and movably fits in the limiting ring groove; the circumferential surface of the battery cover is provided with a stop groove; the locking block is provided with a stop convex portion matching the stop groove, and the stop convex portion movably abuts against the circumferential surface of the battery cover under the elastic force of the locking spring; the stop groove is a V-shaped groove.

4. The battery cover structure of the electronic padlock as claimed in claim 3, characterized in that: The upper and lower surfaces of the anti-rotation protrusion are respectively a plane and an inclined surface; under the elastic force of the locking spring, the plane blocks the moving path of the battery.

5. The battery cover structure of the electronic padlock as claimed in claim 1, characterized in that: The output shaft of the motor is coaxially connected with a driving wheel, and the driving wheel is meshed with the driven wheel.

6. The battery cover structure of the electronic padlock as claimed in claim 1, characterized in that: The surface of the slider is provided with a convex column, and the driven wheel is provided with a hook; the hook is movably hooked on the convex column as the driven wheel rotates, and pulls the slider to move in the direction of compressing the slider spring.

7. The battery cover structure of the electronic padlock as claimed in claim 1, characterized in that: The locking block is recessed on one side facing the locking rod to form a limiting groove. Under the elastic force of the locking rod spring, the locking rod abuts against the surface of the locking block and is embedded in the limiting groove. When one end of the locking rod is misaligned with the yielding recess, the other end thereof cannot escape from the limiting groove. The limiting groove is a spherical groove.

8. The battery cover structure of the electronic padlock as claimed in claim 1, characterized in that: It also includes a lock beam installed on the lock body, and a lock beam spring for popping out the lock beam; the lock beam is provided with a locking groove; a movable steel ball is provided in the lock body, and the steel ball is driven by a cam that rotates synchronously with the driven wheel; when the cam rotates, the steel ball is pushed into the locking groove to achieve locking, or the movement of the steel ball is given way to achieve unlocking of the lock beam.

9. The battery cover structure of the electronic padlock as claimed in claim 8, characterized in that: A driving circuit board is provided in the lock body, and the rotating shaft of the cam is passed through the driving circuit board and connected to the driven wheel key; the driving circuit board is electrically connected to the motor and is provided with a first Hall switch and a second Hall switch; the lock beam and the cam are respectively embedded with a first magnet and a second magnet that are inductively matched with the first Hall switch and the second Hall switch.

10. The battery cover structure of the electronic padlock according to claim 9, characterized in that: It also includes a main circuit board with Bluetooth function; the lock body includes a lock shell, a base and a bottom cover assembled in sequence from top to bottom, and a fixing seat and a cam seat installed in the lock shell; the lock shell and the fixing seat and cam seat therein constitute the upper body of the electronic padlock, and the base and the bottom cover constitute the lower body of the electronic padlock; the motor, the driven wheel, the slider, the locking rod, the slider spring, the locking rod spring, the locking beam, the locking beam spring, the steel ball, the cam and the driving circuit board are assembled with the upper body, and the battery cover, the locking block, the locking spring and the main circuit board are assembled with the lower body, and the driving circuit board is electrically connected to the main circuit board through a connecting wire; the base and the bottom cover are made of plastic.