CN113006613B

CN113006613B - Intelligent padlock for power equipment cabinet body

Info

Publication number: CN113006613B
Application number: CN202110308455.XA
Authority: CN
Inventors: 刘伟; 吴毓奋; 黄普师; 冼云政; 纪海鸿; 杨武智; 黄开浪
Original assignee: Wuzhishan Power Supply Bureau Of Hainan Power Grid Co ltd
Current assignee: Wuzhishan Power Supply Bureau Of Hainan Power Grid Co ltd
Priority date: 2021-03-23
Filing date: 2021-03-23
Publication date: 2022-05-03
Anticipated expiration: 2041-03-23
Also published as: CN113006613A

Abstract

The invention discloses an intelligent padlock for a power equipment cabinet body, which is characterized in that a Bluetooth control module and a power assembly are arranged in a lock body, so that the Bluetooth control module pushes a lock tongue by controlling the driving of the power assembly, the padlock is automatically unlocked, manual key unlocking is not needed, the unlocking efficiency of the padlock is effectively improved, the management of different keys of a plurality of padlocks is solved, and the management efficiency of the padlock is greatly improved. Meanwhile, through the arrangement of the guide groove and the guide rod, the lock hole is popped out under the action of the elastic component after the lock hook is unlocked, the lock hook is rotated to open the lock hook under the matching of the guide groove and the guide rod, and the problem that the padlock can be taken down from the cabinet body only by manually opening the lock hook after unlocking is solved. In addition, through setting up the shrink subassembly to combine the guide effect of guide way and guide bar, make the tip rotatable entering lockhole of latch hook promote the spring bolt to carry out the auto-lock, in order to realize the automatic locking of latch hook, thereby effectively improved the locking automaticity of padlock.

Description

Intelligent padlock for power equipment cabinet body

Technical Field

The invention relates to the technical field of lock hooks, in particular to an intelligent padlock for a cabinet body of electrical equipment.

Background

In the operation process of a power distribution system, a cable branch box, a ring main unit, an outdoor power distribution cabinet, a metering cabinet and other cabinet bodies need to be configured, in order to guarantee the operation safety of the cabinet bodies and equipment in the cabinet, a safety lock hook needs to be additionally arranged outside each cabinet body, a special key is configured to unlock the lock, and non-power distribution operation and maintenance personnel cannot open the lock hook of each cabinet body. With the continuous development of a power distribution system, the number of corresponding cabinets is continuously increased, the number of lock hooks and keys of the cabinets is also continuously increased, operation and maintenance personnel need to maintain safety keys of the electric equipment besides the electric equipment, and key management becomes a difficult problem. In addition, the traditional safety lock needs to handle application procedures each time operation and maintenance is finished, and a key needs to be returned and recorded after equipment maintenance is finished, so that the working efficiency is low; simultaneously, current padlock is opening and is needing the manual work to rotate the latch hook just can open the padlock, need rotate the latch hook and press to lockhole department when locking and just can lock, and the unblock all needs the manual work to operate the padlock with locking, can not carry out automatic opening padlock and lock automatically.

Disclosure of Invention

The invention provides an intelligent padlock for a power equipment cabinet body, and aims to solve the problem that the padlock cannot be automatically unlocked, rotated, opened and locked.

In order to achieve the purpose, the invention provides an intelligent padlock for a cabinet body of electrical equipment, which comprises a lock body, a shackle, a lock tongue, a Bluetooth control module and a power assembly, wherein one end of the shackle is arranged in the lock body through an elastic component, and the lock tongue is telescopically arranged in the lock body; the Bluetooth control module and the power assembly are arranged in the lock body, and the Bluetooth control module is electrically connected with the power assembly; the lock tongue is in intermittent meshing transmission with the power assembly; a guide groove is formed in the extension part of the lock hook, a guide rod is arranged in the lock hook, and one end of the guide rod is located in the guide groove; the telescopic mechanism is characterized by further comprising a contraction assembly, the contraction assembly and the power assembly are in intermittent meshing transmission, and a guide protrusion movably embedded with the contraction assembly is arranged on the extension portion, so that the guide protrusion drives the lock hook to compress the elastic component to perform contraction movement under the rotation of the contraction assembly.

Further, the guide groove includes first vertical groove, arc wall and second vertical groove, the one end of first vertical groove with the one end intercommunication of arc wall, the other end of arc wall with the second vertical groove intercommunication.

Further, the included angle between the first vertical groove and the second vertical groove along the horizontal plane is 90 degrees.

Furthermore, the retraction assembly comprises a rotary drum, a gear and a bearing, the bearing is arranged in the lock body through a bearing seat, the rotary drum is movably sleeved on the extension part, an inner ring of the bearing is sleeved on one end of the rotary drum, the gear is arranged at the other end of the rotary drum, and the gear and the power assembly are in intermittent meshing transmission.

Furthermore, the power assembly comprises a driving motor, a semicircular gear and a rotating block, the driving motor is arranged in the lock body, and the driving motor is electrically connected with the Bluetooth control module; the semicircular gear is connected to the output end of the driving motor and is in intermittent meshing transmission with the gear; the rotating block is connected to the upper end of the semicircular gear, a plurality of teeth are arranged on the rotating block along the circumferential direction, and the rotating block is in intermittent meshing transmission with the lock tongue through the teeth.

Furthermore, the spring bolt is telescopically arranged in the lock body through a return spring, a toothed bar is arranged on one side of the spring bolt, and the toothed bar is in intermittent meshing transmission with the rotating block.

Furthermore, a spiral groove and a through groove are vertically arranged in the rotary drum, the through groove is communicated with the spiral groove, the rotary drum enables the spiral groove to be movably embedded with the guide protrusion through reverse rotation, and the rotary drum drives the lock hook to perform contraction movement through the reverse rotation.

Furthermore, the horizontal section of the through groove is of an arc-shaped structure, and the included angle between the two ends of the arc-shaped structure and the circle center of the extending part along the horizontal plane is 90 degrees.

Furthermore, a limiting pipe is arranged in the lock body, a limiting part is arranged on the extending part, and the limiting part is positioned in the limiting pipe; the elastic component is a spring which is positioned in the limiting pipe and is abutted against the limiting part.

Furthermore, be equipped with the spacing hole of bar on the ratch, be equipped with the stopper in the lock body, the stopper is located through the pole on the spacing hole of bar.

Compared with the prior art, the method has the following beneficial effects:

1. through set up bluetooth control module and power component in the lock body to make bluetooth control module promote the spring bolt through control power component's drive, thereby carry out automatic unblock to the padlock, need not to carry out artifical manual key unblock, effectively improved the unblock efficiency of padlock, and solved the management of the different keys of a plurality of padlocks, improved padlock management efficiency greatly.

2. Through setting up guide way and guide bar, make the in-process that pops out the lockhole under elastomeric element's effect behind the latch hook unblock, the latch hook rises and breaks away from behind the lockhole under the cooperation of guide way and guide bar, rotates and opens the latch hook to the automatic unblock that realizes the latch hook is opened, has solved and need the manual problem of opening the latch hook just can take off the padlock from the cabinet body after the unblock, has effectively improved the efficiency of opening of padlock.

3. Through setting up the shrink component, make the rotary drum rotate under power component's semi-circular gear drive, direction arch on the extension is under the spiral groove cooperation of rotary drum inside, promote the extension and drive the latch hook and continue the shrink motion, and combine the guide effect of guide way and guide bar, make the latch hook rotate to the upper end of lockhole, and under the rotary drum continued motion, the tip of latch hook gets into the lockhole and promotes the spring bolt and carry out the auto-lock, in order to realize the automatic locking of latch hook, thereby effectively improved the locking automaticity of padlock, the loaded down with trivial details problem that the staff rotated latch hook and carried out the press to lockhole department when locking the padlock has been solved.

4. The semicircular gear and the rotating block provided with a plurality of teeth are arranged, so that the unlocking and locking of the locking hook are controlled by the unidirectional rotation of the driving motor, and the cost for controlling the driving motor is effectively saved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only preferred embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive exercise.

FIG. 1 is an internal schematic view of an intelligent padlock for a power equipment cabinet according to the present application;

FIG. 2 is a reverse internal schematic view of an intelligent padlock for a power equipment cabinet according to the present application;

FIG. 3 is an internal axial view of an intelligent padlock for a power equipment cabinet according to the present application;

FIG. 4 is a schematic exterior view of an intelligent padlock for a power equipment cabinet according to the present application;

FIG. 5 is an enlarged schematic view of part A of an intelligent padlock of the present application for a power equipment cabinet;

FIG. 6 is an enlarged schematic view of portion B of an intelligent padlock for a power equipment cabinet according to the present application;

FIG. 7 is a schematic view of a retraction assembly and power assembly of an intelligent padlock for an electrical equipment cabinet according to the present application;

FIG. 8 is a schematic view of a retraction assembly of an intelligent padlock for a power equipment cabinet according to the present application;

FIG. 9 is an extended schematic view of an intelligent padlock for a power equipment cabinet according to the present application;

FIG. 10 is a schematic view of a tumbler of an intelligent padlock for a power equipment cabinet according to the present application;

fig. 11 is a schematic view of the interior of a drum of an intelligent padlock for a power equipment cabinet according to the present application.

Reference numerals: 1-a lock body; 2-a latch hook; 3-a bolt; 4-a bluetooth control module; 5-a power assembly; 6-a guide groove; 7-a guide rod; 8-a retraction assembly; 9-a guide projection; 10-an elastic member; 11-a return spring; 12-a limit tube; 13-a limiting block; 14-a solar panel; 15-pressing a switch; 21-an extension; 22-a limiting part; 31-toothed bar; 41-a battery; 51-a drive motor; 52-semicircular gear; 53-rotating block; 61-a first vertical slot; 62-an arc-shaped groove; 63-a second vertical slot; 81-drum; 82-gear; 83-a bearing; 211-a first triangular groove; 311-strip-shaped limiting holes; 531-teeth; 811-helical groove; 812-through slots.

Detailed Description

For a better understanding of the present invention, its structure, and the functional features and advantages attained by its structure, reference is made to the following detailed description of the preferred embodiments taken in conjunction with the accompanying drawings, in which:

as shown in fig. 1 to 9, the present invention provides an intelligent padlock for a cabinet of an electrical device, including a lock body 1, a shackle 2, a locking tongue 3, a bluetooth control module 4 and a power assembly 5, wherein one end of the shackle 2 is disposed in the lock body 1 through an elastic component 10, and the locking tongue 3 is telescopically disposed in the lock body 1; the Bluetooth control module 4 and the power assembly 5 are arranged in the lock body 1, the Bluetooth control module 4 is electrically connected with the power assembly 5, and the Bluetooth control module 4 is the prior art characteristic with a battery 41 and is not detailed here; the bolt 3 is in intermittent meshing transmission with the power assembly 5. Through set up bluetooth control module 4 and power component 5 in lock body 1 to make bluetooth control module 4 promote lock tongue 3 through the drive of control power component 5, thereby carry out automatic unblock to the padlock, need not to carry out artifical manual key unblock, effectively improved the unblock efficiency of padlock, and solved the management of the different keys of a plurality of padlocks, improved padlock managerial efficiency greatly.

Extension 21 of latch hook 2 is equipped with guide way 6, be equipped with guide bar 7 in the latch hook 2, the one end of guide bar 7 is located guide way 6, to control power component 5 drive spring bolt 3 through bluetooth control module 4 and break away from the locked groove on latch hook 2 and realize the unblock, and rely on elastomeric element 10's reaction force to promote extension 21 and rise, the in-process latch hook 2 that rises rotates under the cooperation of guide way 6 and guide bar 7, thereby realize that the unblock of latch hook 2 rises and rotate and open, effectively improve the unblock efficiency and the automaticity of padlock. Through setting up guide way 6 and guide bar 7, make 2 unblocks of latch hook pop out the in-process of lockhole under elastomeric element 10's effect after, 2 rises behind the breaking away from the lockhole of latch hook under the cooperation of guide way 6 with guide bar 7, rotate and open latch hook 2 to the automatic unblock that realizes latch hook 2 is opened, has solved and has needed the manual problem that can take off the padlock from the cabinet body of opening latch hook 2 after the unblock, has effectively improved the efficiency of opening of padlock.

Specifically, the intelligent padlock further comprises a contraction assembly 8, the contraction assembly 8 and the power assembly 5 are in intermittent meshing transmission, and a guide protrusion 9 movably embedded with the contraction assembly 8 is arranged on the extension portion 21, so that the guide protrusion 9 drives the lock hook 2 to compress the elastic component 10 to perform contraction movement under the rotation of the contraction assembly 8, and the lock hook 2 is automatically contracted, rotated and locked on the lock tongue 3 in the lock body 1.

Specifically, the guide groove 6 includes a first vertical groove 61, an arc-shaped groove 62 and a second vertical groove 63, one end of the first vertical groove 61 is communicated with one end of the arc-shaped groove 62, and the other end of the arc-shaped groove 62 is communicated with the second vertical groove 63; the first vertical groove 61, the arc-shaped groove 62 and the second vertical groove 63 are of semicircular structures, and the end part of the guide rod 7 is of a semicircular structure, so that after the lock hook 2 is unlocked, the elastic part 10 pushes the lock hook 2 to ascend, and the guide groove 6 on the extension part 21 ascends and rotates under the action of the guide rod 7; the first vertical groove 61 is used for unlocking the padlock and vertically ascending to be separated from the lock hole, the arc-shaped groove 62 is used for rotating and opening the padlock, and the second vertical groove 63 is used for lifting the padlock for the second time, so that the automatic unlocking, lifting and rotating and opening of the padlock can be realized through three-stage movement.

Specifically, the included angle of first vertical groove 61 and second vertical groove 63 along the horizontal plane is 90 degrees, and the both ends of arc wall 62 become 90 degrees contained angles with the pole portion centre of a circle of latch hook 2 promptly to make the padlock can carry out the rotation of 90 degrees angles and open, thereby be convenient for the staff and take off the padlock from the cabinet body.

Specifically, a limiting pipe 12 is arranged in the lock body 1, a limiting part 22 is arranged on the extension part 21, and the limiting part 22 is positioned in the limiting pipe 12; the elastic component 10 is a spring, the spring is positioned in the limiting pipe 12 and is abutted against the limiting part 22, so that the extending part 21 is pushed by the acting force of the spring to drive the locking hook 2 to move upwards; further, the spring is movably abutted so that the locking hook 2 does not drive the spring to rotate in the rotating process.

Example 2:

as shown in fig. 1 to 9, in combination with the technical solution of embodiment 1, in this embodiment, the contracting assembly 8 includes a rotating cylinder 81, a gear 82 and a bearing 83, the bearing 83 is seated in the lock body 1 through the bearing 83, the rotating cylinder 81 can be movably sleeved on the extension part 21, so that the rotating cylinder 81 and the extension part 21 are in clearance fit; the inner ring of the bearing 83 is sleeved on one end of the revolving drum 81, so that the revolving drum 81 can be rotatably arranged in the lock body 1; the gear 82 is arranged at the other end of the rotary drum 81, and the gear 82 is in intermittent meshing transmission with the power assembly 5, so that the power assembly 5 is in transmission through the clearance meshing of the rotation and the gear 82, and the gear 82 drives the rotary drum 81 to rotate.

Specifically, the power assembly 5 comprises a driving motor 51, a semicircular gear 52 and a rotating block 53, wherein the driving motor 51 is a micro motor with unidirectional rotation; the driving motor 51 is arranged in the lock body 1, and the driving motor 51 is electrically connected with the Bluetooth control module 4 so as to control the driving motor 51 to rotate through the Bluetooth control module 4; the semicircular gear 52 is connected with the output end of the driving motor 51, and the semicircular gear 52 is in intermittent meshing transmission with the gear 82; the rotating block 53 is connected to the upper end of the semicircular gear 52, a plurality of teeth 531 are arranged on the rotating block 53 along the circumferential direction, and the rotating block 53 is in intermittent meshing transmission with the bolt 3 through the teeth 531. The driving motor 51 drives the rotating block 53 to rotate so that the teeth 531 drive the toothed bar 31 to perform linear motion, thereby pushing the bolt 3 to unlock the latch hook 2; further, each unlocking and locking of the locking hook 2 requires a rotation of the block 53 and the half-circular gear 52 by one turn, so that the teeth 531 return to the beginning.

The semicircular gear 52 and the rotating block 53 with a plurality of teeth 531 are arranged to realize the unidirectional rotation of the driving motor 51 to control the unlocking and locking of the locking hook 2, thereby effectively saving the cost for controlling the driving motor 51.

Specifically, the bolt 3 is telescopically arranged in the lock body 1 through the return spring 11, one side of the bolt 3 is provided with a toothed bar 31, the toothed bar 31 and the rotating block 53 are in intermittent meshing transmission, so that the bolt 3 is pushed to contract to be separated from a lock groove of the lock hook 2 in an intermittent meshing transmission mode, and the lock hook 2 is unlocked; the rotating block 53 is in intermittent meshing transmission with the bolt 3 through the teeth 531, so that the bolt 3 is driven to contract by the teeth 531 on the rotating block 53 when the lock hook 2 is unlocked; when the tooth 531 rotates the rack bar 31, the latch bolt 3 is reset by the force of the return spring 11.

Specifically, a bar-shaped limiting hole 311 is formed in the toothed bar 31, a limiting block 13 is arranged in the lock body 1, and the limiting block 13 is arranged on the bar-shaped limiting hole 311 through a rod, so that the toothed bar 31 and the bolt 3 are limited on one side of the lock hole through the limiting block 13, and the bolt 3 is driven to contract under the rotation of the teeth 531 on the rotating block 53; furthermore, a limiting ring (not shown) for limiting the bolt 3 is further disposed in the lock body 1, and the limiting ring is sleeved on the head of the bolt 3.

Example 3:

as shown in fig. 10 and fig. 11, in combination with the technical solution of embodiment 2, in this embodiment, a spiral groove 811 and a through groove 812 are vertically arranged in the drum 81, the through groove 812 is communicated with the spiral groove 811, and the drum 81 rotates in a reverse direction to movably engage the spiral groove 811 with the guide protrusion 9, so that the drum 81 rotates in a reverse direction to drive the locking hook 2 to perform a retracting motion.

Through setting up shrink subassembly 8, make rotary drum 81 rotate under the drive of power component 5's semicircular gear 52, direction arch 9 on the extension 21 is under the spiral groove 811 cooperation of rotary drum 81 inside, promote extension 21 and drive latch hook 2 and continue the shrinkage motion, and combine the guide effect of guide way 6 and guide bar 7, make latch hook 2 rotate to the upper end of lockhole, and under rotary drum 81 continues the motion, the tip of latch hook 2 gets into the lockhole and promotes spring bolt 3 and carry out the auto-lock, in order to realize the automatic locking of latch hook 2, thereby effectively improved the locking automaticity of padlock, the loaded down with trivial details problem that the staff rotated latch hook 2 and pressed to lockhole department when locking the padlock has been solved.

Specifically, the horizontal section of the through groove 812 is an arc-shaped structure, and the included angle between the two ends of the arc-shaped structure and the center of the circle of the extension portion 21 along the horizontal plane is 90 degrees, so that the guide protrusion 9 at the upper end of the extension portion 21 is always positioned in the through groove 812 in the process of opening, ascending and rotating the locking hook 2 by 90 degrees, so as to prevent the guide protrusion 9 from entering the spiral groove 811, thereby effectively solving the problem of interference with the rotary drum 81 in the process of unlocking, ascending and rotating the locking hook 2; further, the span of the spiral groove 811 in the horizontal plane occupies 3/4 of the cross section of the drum 81, and in the case that the semicircular gear 52 rotates half a turn, the drum 81 rotates one turn to return, so that the guide projection 9 can enter the upper port of the spiral groove 811 through the through groove 812 after the padlock is unlocked.

Example 4:

as shown in fig. 4, in combination with the technical solution of embodiment 3, in this embodiment, a solar panel 14 is further included, the solar panel 14 is disposed on two outer sides of the lock body 1, and the solar panel 14 is electrically connected to the bluetooth control module 4 to charge the battery 41, so as to reduce the problem that the padlock cannot be opened due to the power failure of the battery 41.

Specifically, still include push switch 15, push switch 15 locates the surface of lock body 1, push switch 15 electric connection is on bluetooth control module 4 to the padlock after coming the unblock through the mode of pressing presses the circuit of switch-on driving motor 51, thereby makes driving motor 51 rotate and drives shrink assembly 8 and promote latch hook 2 and contract, and rotates to lockhole department locking under the effect of guide way 6, further improves the automatic locking efficiency of padlock through the mode of pressing.

The foregoing is merely a preferred embodiment of the invention and is not intended to limit the invention in any manner. Those skilled in the art can make many possible variations and modifications to the disclosed solution, or modify equivalent embodiments using the teachings set forth above, without departing from the scope of the claimed solution. Therefore, any modification, equivalent change and modification made to the above embodiments according to the technology of the present invention are within the protection scope of the present invention, unless the content of the technical solution of the present invention is departed from.

Claims

1. The intelligent padlock is characterized by comprising a lock body (1), a shackle (2), a lock tongue (3), a Bluetooth control module (4) and a power assembly (5), wherein one end of the shackle (2) is arranged in the lock body (1) through an elastic component (10), and the lock tongue (3) is telescopically arranged in the lock body (1); the Bluetooth control module (4) and the power assembly (5) are arranged in the lock body (1), and the Bluetooth control module (4) is electrically connected with the power assembly (5); the lock tongue (3) and the power assembly (5) are in intermittent meshing transmission; a guide groove (6) is formed in the extending portion (21) of the lock hook (2), a guide rod (7) is arranged in the lock hook (2), and one end of the guide rod (7) is located in the guide groove (6); the telescopic hook is characterized by further comprising a contraction assembly (8), wherein the contraction assembly (8) is in intermittent meshing transmission with the power assembly (5), and a guide protrusion (9) movably embedded with the contraction assembly (8) is arranged on the extension part (21) so that the guide protrusion (9) drives the lock hook (2) to compress the elastic part (10) to perform contraction movement under the rotation of the contraction assembly (8);

the contraction assembly (8) comprises a rotary drum (81), a gear (82) and a bearing (83), the bearing (83) is arranged in the lock body (1) through the bearing (83), the rotary drum (81) is movably sleeved on the extension part (21), an inner ring of the bearing (83) is sleeved on one end of the rotary drum (81), the gear (82) is arranged on the other end of the rotary drum (81), and the gear (82) and the power assembly (5) are in intermittent meshing transmission.

2. An intelligent padlock for electric power equipment cabinets, according to claim 1, characterized in that the guide slot (6) comprises a first vertical slot (61), an arc-shaped slot (62) and a second vertical slot (63), one end of the first vertical slot (61) communicating with one end of the arc-shaped slot (62), the other end of the arc-shaped slot (62) communicating with the second vertical slot (63).

3. The smart padlock according to claim 2, characterized in that the first vertical slot (61) and the second vertical slot (63) have an angle of 90 degrees along the horizontal plane.

4. The intelligent padlock for electric equipment cabinets according to claim 1, characterized in that the power assembly (5) comprises a driving motor (51), a semicircular gear (52) and a rotating block (53), wherein the driving motor (51) is arranged in the lock body (1), and the driving motor (51) is electrically connected with the bluetooth control module (4); the semicircular gear (52) is connected to the output end of the driving motor (51), and the semicircular gear (52) is in intermittent meshing transmission with the gear (82); the rotating block (53) is connected to the upper end of the semicircular gear (52), a plurality of teeth (531) are arranged on the rotating block (53) along the circumferential direction, and the rotating block (53) is in intermittent meshing transmission with the bolt (3) through the teeth (531).

5. The intelligent padlock for the cabinet body of electric equipment according to claim 4, characterized in that the locking bolt (3) is telescopically arranged in the lock body (1) through a return spring (11), a toothed bar (31) is arranged on one side of the locking bolt (3), and the toothed bar (31) is in intermittent meshing transmission with the rotating block (53).

6. An intelligent padlock according to claim 3 or 4, characterized in that a spiral groove (811) and a through groove (812) are vertically arranged in the drum (81), the through groove (812) is communicated with the spiral groove (811), the drum (81) enables the spiral groove (811) and the guide projection (9) to be movably engaged through reverse rotation, so that the drum (81) drives the shackle (2) to perform retraction movement through reverse rotation.

7. The intelligent padlock for the cabinet body of electric power equipment according to claim 6, wherein the horizontal section of the through slot (812) is an arc-shaped structure, and the included angle between the two ends of the arc-shaped structure and the center of the extension (21) along the horizontal plane is 90 degrees.

8. The intelligent padlock for power equipment cabinets according to claim 1, characterized in that a limiting tube (12) is arranged inside the lock body (1), the extension (21) is provided with a limiting portion (22), and the limiting portion (22) is located inside the limiting tube (12); the elastic component (10) is a spring, and the spring is positioned in the limiting pipe (12) and is abutted against the limiting part (22).

9. The intelligent padlock for the cabinet body of electric equipment according to claim 5, wherein the toothed bar (31) is provided with a strip-shaped limiting hole (311), the lock body (1) is provided with a limiting block (13), and the limiting block (13) is arranged on the strip-shaped limiting hole (311) through a rod.