CN209958979U - Anti-error electronic padlock - Google Patents

Abstract

An anti-tamper electronic padlock comprising: the unlocking assembly comprises a locking sliding block, an elastic limiting piece matched with the locking sliding block and a limiting piece driving assembly driving the elastic limiting piece to reciprocate, the locking sliding block can move in a space between an unlocking position and a locking position, the moving direction of the locking sliding block is crossed with the moving direction of the elastic limiting piece, at least one part of the moving space of the elastic limiting piece is positioned in the moving space of the locking sliding block, and at least one part of the moving space can be completely separated from the moving space of the locking sliding block; still including emergent unblock subassembly, emergent unblock subassembly includes emergent driving piece and driving medium, and the driving medium is connected between emergent driving piece and elasticity locating part, and emergent driving piece is used for driving the driving medium and breaks away from the removal space of shutting slider with elasticity locating part. The utility model discloses can avoid damaging the tool to lock at emergency under the emergent unblock.

Description

Anti-error electronic padlock

Technical Field

The utility model relates to a tool to lock especially relates to a prevent mistake electron padlock.

Background

In order to prevent human operation accidents, microcomputer anti-misoperation locking systems have been widely used in substations and power plants. The traditional mechanical padlock has low efficiency and inconvenient management due to no electronic unlocking function, and is gradually replaced by an electronic padlock with a microcomputer anti-misoperation function. For example, the chinese utility model patent with patent number 201520090848.8 discloses an anti-misoperation electronic padlock. The electronic padlock comprises a lock body, a lock hook and an electronic locking mechanism, wherein a locking block of the electronic locking mechanism can limit the lock hook, and a limit stop of the electronic locking mechanism can limit the locking block. The electronic padlock can be connected with the unlocking device in a wireless mode and executes the electric unlocking action, the unlocking device transmits the instruction to an internal circuit of the electronic padlock, and the internal circuit controls the electronic locking mechanism to execute the action to unlock. The electronic padlock can realize the electronic unlocking function, and is more convenient to use than the traditional mechanical padlock. However, the electronic padlock is not provided with an emergency unlocking mechanism, when an unlocking key or a spare key is lost, the lock is difficult to open, and the lock can be unlocked only by destroying the lock by using the compression pliers, so that the operation is troublesome. In addition, most of the electronic padlocks are applied outdoors and are in an open air environment, and the problems of damage to the lockset and short service life caused by erosion of rainwater or accumulation of dust also exist.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a can emergent prevent mistake electron padlock of unblanking can need not to destroy the tool to lock and realize emergent unblanking under the condition that the key loses.

In order to achieve the above object, the present invention adopts the following technical solutions:

an anti-tamper electronic padlock comprising: the unlocking and locking device comprises a lock body, a lock hook and an unlocking and locking assembly arranged in the lock body, wherein the unlocking and locking assembly comprises a locking sliding block, an elastic limiting piece matched with the locking sliding block and a limiting piece driving assembly driving the elastic limiting piece to reciprocate, the locking slide block can move in a space between an unlocking position and a locking position, the moving direction of the locking slide block is crossed with the moving direction of the elastic limiting piece, at least one part of the moving space of the elastic limiting piece is positioned in the moving space of the locking slide block, at least a part of the moving space can be completely separated from the moving space of the locking slide block, and the emergency unlocking component is also included, the emergency unlocking component comprises a driving piece and a transmission piece, the transmission piece is connected between the driving piece and the elastic limiting piece, the driving piece is used for driving the transmission piece to enable the elastic limiting piece to be separated from the moving space of the locking sliding block.

Furthermore, the transmission part is a linkage rod arranged in parallel to the moving direction of the elastic limiting part, and a matching part is arranged on the linkage rod; the driving piece is a rotary lock knob, the axial direction of the rotary lock knob is perpendicular to the moving direction of the elastic limiting piece, the rotary lock knob can be arranged in a rotary lock knob mounting hole formed in the lock body in a rotating mode around the axial direction of the rotary lock knob, and a through hole extending along the circumferential direction of the hole wall is formed in the hole wall of the rotary lock knob mounting hole; the rotary lock is characterized in that a rotary pin is arranged on the rotary lock button, the rotary pin is connected with the rotary lock button along the radial direction of the rotary lock button, the free end of the rotary pin penetrates out of a through hole in the hole wall of a mounting hole of the rotary lock button to be matched with the matching part, and the rotary lock button is driven by the rotary pin to move along with the linkage rod when rotating.

According to the above technical scheme, the utility model discloses an electronic padlock has set up emergent unblock subassembly in the lock body, and driving piece and the cooperation interlock of driving medium through emergent unblock subassembly make elasticity locating part remove spacing to the shutting slider to can open the padlock, avoided can't unblank and can only destroy the tool to lock under the condition such as the key is lost, can reduce user's use and later maintenance cost to a certain extent.

Preferably, the padlock further comprises a limiting pin connected with the rotary lock knob along the radial direction of the rotary lock knob, the limiting pin is located in the rotary lock knob mounting hole, the limiting pin can move along the axial direction of the limiting pin, and a limiting pin spring enabling the limiting pin to be far away from the rotary lock knob is arranged between the limiting pin and the rotary lock knob; the lock body is provided with a limiting pin accommodating hole communicated with the rotary lock button mounting hole, the limiting pin accommodating hole is arranged along the radial direction of the rotary lock button, and an opening of the limiting pin accommodating hole is located at the position of the head part of the limiting pin when the rotary lock button rotates to enable the elastic limiting part to be separated from the moving space of the locking sliding block.

The setting can only follow the radial movement spacer pin of rotatory lock button, through the spacer pin with set up the continuous rotation of rotatory lock button after the unblock finishes with the cooperation restriction in the spacing hole of spacer pin in the lock body, realize disposable emergent unblock.

More specifically, elasticity locating part for set up in the iron core of shutting slider below, locating part drive assembly include the electro-magnet with set up in the electro-magnet with iron core reset spring between the iron core, the electro-magnet drive the iron core leaves the removal space of shutting slider, iron core reset spring drive the iron core gets into the removal space of shutting slider.

More specifically, the lock hook is provided with a pair of first limit grooves matched with the locking sliding block; the locking slide block comprises a first locking slide block and a second locking slide block, the first locking slide block comprises a first locking matching part and a first spring abutting part which are perpendicular to each other, the first locking matching part is matched with the first limiting groove, and a first iron core accommodating groove is formed in the bottom surface of the first locking matching part; the second locking sliding block comprises a second locking matching part and a second spring abutting part which are perpendicular to each other, the second locking matching part is matched with the other first limiting groove, a second iron core accommodating groove is formed in the bottom surface of the second locking matching part, and the first iron core accommodating groove and the second iron core accommodating groove form a groove for accommodating the top of the iron core; the first spring abutting portion faces the second locking matching portion through the first locking matching portion, the second spring abutting portion faces the first locking matching portion through the second locking matching portion, and a locking slider reset spring is arranged between the first locking slider and the second locking slider.

The two locking sliding blocks are arranged in parallel at intervals, and the spring provides reset acting force, so that the structure of the padlock can be simplified, and the manufacturing cost is reduced.

The linkage rod is provided with a hook-shaped head, the head is buckled at the top of the elastic limiting piece, and the head of the linkage rod is positioned between the first locking slide block and the second locking slide block; the latching slider return spring is disposed between the first latching engagement portion and the second spring abutting portion and between the second latching engagement portion and the first spring abutting portion.

The head of the linkage rod is arranged between the first locking slide block and the second locking slide block, the hook-shaped head drives the elastic limiting part to move, and meanwhile, the locking slide block reset spring is arranged between the first locking matching part and the second spring abutting part and between the second locking matching part and the first spring abutting part, so that the internal structure of the padlock is more compact.

Preferably, the padlock further comprises an anti-throw assembly comprising an anti-throw pin, a top block and a top block spring; an anti-throwing pin accommodating hole with the axis parallel to the moving direction of the elastic limiting piece is formed in the locking sliding block, and the anti-throwing pin is arranged in the anti-throwing pin accommodating hole; a top block accommodating hole is formed in the lock body and is located below the anti-throwing pin accommodating hole, the top block is arranged in the top block accommodating hole, and the outer diameter of the top block is larger than that of the anti-throwing pin; the outer diameter difference between the top block and the anti-throwing pin is smaller than the moving distance of the locking slide block from the locking position to the unlocking position; the ejector block spring is arranged between the bottom of the ejector block and the bottom wall of the ejector block accommodating hole and provides acting force for the ejector block to enable the anti-throwing pin to be abutted against the anti-throwing pin accommodating hole; the depth of the top block accommodating hole is greater than the sum of the heights of the top block and the top block spring and less than the sum of the length of the anti-throwing pin and the heights of the top block and the top block spring; the sum of the weights of the anti-throwing pin and the top block is greater than or equal to the weight of the elastic limiting piece.

Through setting up and preventing getting rid of the subassembly, can prevent that the padlock from swinging the time because of the condition emergence that inertia leads to unblanking, stop the phenomenon that the abnormal unblanking appears in the electron padlock.

Preferably, the padlock further comprises a dustproof cap made of elastic materials, the dustproof cap is in interference fit with the lock hook through hole in the shell of the lock body, and the free end of the lock hook can be inserted through the dustproof cap through hole.

Further, the dust cap includes the body and is even fixed part as an organic whole with the body, the fixed part is cylindrical and is located the below of body, be provided with radial sunken annular on the fixed part outer wall, be provided with the radial outstanding flange portion of round on the latch hook through-hole inner wall, the flange portion hold in the annular.

Furthermore, a water chute which is sunken downwards is arranged at the top of the dustproof cap, the water chute extends through two opposite side surfaces of the body and passes through the dustproof cap through hole, and an annular convex part which protrudes upwards from the bottom surface of the water chute is arranged on the periphery of the dustproof cap through hole.

The dustproof and waterproof performance of the padlock can be improved by arranging the dustproof cap, and the service life of the padlock is prolonged.

Drawings

In order to illustrate the embodiments of the present invention more clearly, the drawings that are needed in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings can be obtained by those skilled in the art without inventive effort.

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 1b is a top view of FIG. 1;

fig. 2 is an exploded schematic view of an embodiment of the present invention;

FIG. 3 is a cross-sectional view of FIG. 1;

fig. 4 is a schematic structural view of a dust cap according to an embodiment of the present invention;

FIG. 5 is a schematic view of another angle of the dust cap;

FIG. 6 is an enlarged partial view of portion A of FIG. 3;

fig. 7 is a schematic structural diagram of the embodiment of the present invention with the outer shell and the lock body removed;

fig. 8 is a schematic structural view of a first locking slider according to an embodiment of the present invention;

fig. 9 is a schematic structural view of a second locking slider according to an embodiment of the present invention;

FIGS. 10a to 10d are schematic views illustrating the operation of the locking slider, the iron core and the shackle when the padlock is changed from the locking state to the unlocking state;

FIG. 11 is a schematic view of the emergency release assembly without depressing the plunger;

fig. 12 is a schematic view of the emergency unlocking assembly pressing down the iron core;

fig. 13 is a schematic structural view of a rotary lock knob according to an embodiment of the present invention;

FIG. 14 is an exploded view of the rotary lock knob;

FIG. 15 is a cross-sectional view taken along line A-A of FIG. 1 b;

FIG. 16 is a cross-sectional view taken along line B-B of FIG. 1B;

FIG. 17 is a schematic view of the anti-slam pin limiting the locking slide;

fig. 18 is a sectional view taken along line C-C in fig. 3.

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

Detailed Description

In order to make the above and other objects, features and advantages of the present invention more apparent, the following embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As shown in fig. 1, 2 and 3, the electronic padlock of the embodiment for preventing error includes a lock body 1, a housing 2, a shackle 3 and a base 4. The base 4 is arranged at the bottom of the lock body 1 and connected with the lock body 1, and the lock body 1 is arranged in the shell 2. The lock body 1 and the shell 2 are both provided with pin holes, and the lock body 1 and the shell 2 are fixed together through fixing pins 5 penetrating through the pin holes.

The latch hook 3 of the present embodiment includes a connecting end 3a defined in the lock body 1, and a free end 3b insertable into or removable from the locking hole 1a on the lock body 1, the latch hook 3 being reciprocally movable in a direction parallel to an axis of the connecting end 3a so that the free end 3b can be removed from or inserted into the locking hole 1 a; when the free end 3b is disengaged from the locking hole 1a, the locking hook 3 can rotate around the axis of the connecting end 3 a. The connecting end 3a and/or the free end 3b of the locking hook 3 are/is provided with a first limiting groove 3c, the connecting end 3a and the free end 3b of the locking hook 3 are both provided with a first limiting groove 3c, and the first limiting grooves 3c on the connecting end 3a and the free end 3b are oppositely arranged. The first limiting groove 3c is spherical or cambered or inclined.

The shell 2 is provided with a lock hook through hole 2a corresponding to the lock hole 1a of the lock body 1, a dustproof cap 6 is arranged at the lock hook through hole 2a, the dustproof cap 6 is made of elastic rubber materials, as shown in fig. 4 and 5, the dustproof cap 6 comprises a body 6-1 and a fixing part 6-2 connected with the body 6-1 into a whole, the fixing part 6-2 is located below the body 6-1, and the fixing part 6-2 is cylindrical and can be in interference fit with the lock hook through hole 2 a. The dust cap 6 has a dust cap through hole 6a penetrating the body 6-1 and the fixing portion 6-2 along its own axis, and the free end 3b of the latch hook 3 is insertable through the dust cap through hole 6 a. In order to enhance the firmness of the fit between the dust cap 6 and the locking hook through hole 2a, the inner wall of the locking hook through hole 2a is provided with a circle of flange part 2b protruding along the radial direction, meanwhile, the outer wall of the fixing part 6-2 is provided with an annular groove 6-2a recessed along the radial direction, the annular groove 6-2a corresponds to the flange part 2b, and when the dust cap 6 is arranged at the locking hook through hole 2a, the flange part 2b is accommodated in the annular groove 6-2a (figure 6), so that the dust cap 6 is buckled at the locking hook through hole 2a, and the dust cap 6 is not easy to fall off. Meanwhile, the dustproof cap 6 has certain elasticity, and can be filled in a gap between the shell 2 (the lock hook through hole 2a) and the lock hook 3 to prevent rainwater or dust from entering the lock body through the gap, so that the waterproof and dustproof effects are achieved. Preferably, in order to quickly drain accumulated water on the dust cap 6, a water chute 6-1a which is concave downwards is arranged at the top of the body 6-1, the water chute 6-1a extends through two opposite side surfaces of the body 6-1 and passes through a dust cap through hole 6a, and an annular convex part 6b which protrudes upwards from the bottom surface of the water chute 6-1a is arranged at the periphery of the dust cap through hole 6 a. The top of the body 6-1a is provided with a downward-concave water guide groove 6-1a, when rainwater is accumulated on the top of the body 6-1, the rainwater can be quickly drained through the water guide groove 6-1a, and the annular convex part 6b on the periphery of the through hole 6a of the dustproof cap can prevent the rainwater from being drained into the through hole 6a of the dustproof cap. The extending direction of the water chute 6-1a corresponds to the moving path of the free end 3b of the latch hook 3 when the latch hook 3 rotates around the axis of the connecting end 3a, and the free end 3b passes through the water chute 6-1a when the latch hook 3 is pulled out upwards and rotates after being unlocked, so that water in the water chute 6-1a can be swept away. Or the water chute 6-1a can be arranged to extend from the middle to both ends in a downward inclined way, and water can be rapidly discharged through the inclined plane structure of the bottom surface of the water chute 6-1 a.

Referring to fig. 2, 3 and 7, an unlocking assembly, an emergency unlocking assembly and a PCB plate 7 are disposed in the lock body 1. The PCB 7 is provided with a control circuit, the unlocking key can transmit energy and instructions to the control circuit in a wireless mode, and the control circuit controls the unlocking component to execute actions according to the instructions. The unlocking and locking assembly comprises a locking sliding block 8, an electromagnet 9, an iron core 10 and an iron core return spring 11. One end part of the locking sliding block 8 is provided with a limiting head 12, the limiting head 12 is used for being matched with a first limiting groove 3c on the locking hook 3, and the part of the limiting head 12 matched with the first limiting groove 3c is a spherical surface, an arc surface or an inclined surface with a smooth surface. The limiting head 12 and the locking slider 8 can be of an integrated structure, namely the limiting head is a part of the locking slider, or the limiting head 12 and the locking slider 8 can also be mutually independent parts which are connected together in a threaded connection, welding, sticking or buckling, interference fit or other modes. The limiting head is used for realizing the matching between the locking sliding block and the first limiting groove.

As shown in fig. 8 and 9, the locking slider 8 of the present embodiment includes a first locking slider 8-1 and a second locking slider 8-2, and the first locking slider 8-1 and the second locking slider 8-2 are similar in structure, and the first locking slider 8-1 will be described below as an example. The first latch slider 8-1 includes a first latch mating portion 8-1a and a first spring abutting portion 8-1b, which are perpendicular to each other, the first latch mating portion 8-1a and the first spring abutting portion 8-1b are connected into a whole, and the first spring abutting portion 8-1b protrudes from the first latch mating portion 8-1a along a direction perpendicular to the first latch mating portion 8-1 a. The first spring abutment 8-1b may also be connected to the first latch mating portion 8-1a by conventional connection means such as welding, screwing, snapping, etc. The bottom surface (the side opposite to the core 10) of the first latching engagement portion 8-1a (the first latching slider 8-1) is provided with a first core receiving groove 8-1c, and the first core receiving groove 8-1c of the present embodiment extends from the inside to the outside to the side of the first latching engagement portion 8-1a adjacent to the first spring abutment portion 8-1 b. Similarly, the second locking slider 8-2 also comprises a second locking matching part 8-2a and a second spring abutting part 8-2b which are arranged perpendicular to each other, and a second iron core accommodating groove 8-2c is also arranged on the bottom surface of the second locking matching part 8-2 a.

The first locking slide block 8-1 and the second locking slide block 8-2 are arranged in a mutually parallel mode at intervals and combined together, the first spring abutting part 8-1b on the first locking slide block 8-1 is opposite to the second locking matching part 8-2a of the second locking slide block 8-2, the second spring abutting part 8-2b on the second locking slide block 8-2 is opposite to the first locking matching part 8-1a of the first locking slide block 8-1, namely the first spring abutting part faces the second locking matching part from the first locking matching part, and the second spring abutting part faces the first locking matching part from the second locking matching part. A locking slide return spring 13 is arranged between the first locking slide 8-1 and the second locking slide 8-2, which locking slide return spring 13 provides the locking slide with a force close to the free/connection end of the locking hook (moving to the locking position). The latching slider return springs 13 of the present embodiment are disposed between the first latching engagement portion 8-1a and the second spring abutment portion 8-2b and between the second latching engagement portion 8-2a and the first spring abutment portion 8-1b, and the latching slider return springs 13 provide forces for separating (returning) the two latching sliders, that is, forces for moving them toward the free end/connecting end near the latch hook. When the first and second locking sliders 8-1 and 8-2 are located at a specific position (the spacing head 12 is received in the first spacing groove 3 c), the first and second core-receiving grooves 8-1c and 8-2c together constitute a groove for receiving the top of the core 10. In the embodiment, the free end and the connecting end of the lock hook are both provided with the first limiting groove, so that the locking sliding block is composed of two locking sliding blocks capable of moving relatively, and when the first limiting groove is only arranged at the free end or the connecting end of the lock hook, only one locking sliding block can be arranged. Under the condition that the internal space of the lock body allows or the volumes of the first locking slide block and the second locking slide block are proper, the locking slide block return spring can be directly abutted between the first spring abutting part and the second spring abutting part; or the first and second locking sliders are not provided with a spring abutting part, the two locking sliders are arranged in a mode that the end parts are opposite, and the locking slider return spring is arranged between the opposite end parts of the two locking sliders. The core receiving groove may be provided only on one of the locking sliders.

In the embodiment, an iron core 10 is used as an elastic limiting part for limiting the movement of the locking slider, an electromagnet 9 is used as an iron core driving unit for driving the iron core to move, the electromagnet 9 is arranged below the locking slider 8, the iron core 10 is located between the locking slider 8 and the electromagnet 9, the iron core 10 can only move up and down along the self-axial direction, the moving direction of the iron core 10 is intersected with the moving direction of the locking slider 8, and the moving directions of the iron core 10 and the locking slider 8 are perpendicular in the embodiment. The iron core return spring 11 is arranged between the electromagnet 9 and the iron core 10, and the iron core return spring 11 serves as a driving piece for the iron core to return and provides acting force for the iron core 10 to move upwards (close to the locking sliding block 8). The electromagnet 9 is electrically connected with a control circuit on the PCB 7, and the control circuit can control the electromagnet 9 to generate a magnetic field or the magnetic field disappears. The electromagnet 9 and the iron core return spring 11 form a limiting part driving assembly for driving the iron core to reciprocate, and the magnetic action of the electromagnet 9 and the elastic action of the iron core return spring 11 can control the iron core 10 to move between the first position and the second position.

When the iron core 10 is at the first position, that is, the lock core 10 extends out of the electromagnet 9 (fig. 10a) upwards under the elastic force of the iron core return spring 11, the top (free end) of the lock core 10 extends into the iron core accommodating groove at the bottom of the locking slider 8 (the iron core moves into the moving space of the locking slider), because the iron core 10 can only move along the self axial direction and can not move in the horizontal direction, the locking slider 8 can not move horizontally due to the limit of the iron core 10; when the iron core 10 is in the second position, i.e. the iron core 10 is attracted by the magnetic force of the iron core return spring 11 and moves downwards to be retracted into the electromagnet 9 (fig. 10b), the iron core 10 leaves the iron core accommodating groove at the bottom of the locking slide block 8 (the iron core moves away from the moving space of the locking slide block), thereby releasing the limit to the locking slide block 8. When the lock core 10 is at the second position, the locking hook 3 or the lock body 1 is pulled outwards, so that the locking hook 3 and the lock body 1 are moved in a separated manner, along with the movement of the locking hook 3 in the direction away from the lock body 1, the free end 3b of the locking hook 3 and the first limiting groove 3c on the connecting end 3a also move along with the locking hook 3, and the groove wall of the first limiting groove 3c extrudes the end part (limiting head 12) of the locking slider 8 in the moving process, so that the locking slider 8 overcomes the acting force of the locking slider return spring 13 and moves in the direction away from the locking hook 3 (unlocking position) (fig. 10 c). After the free end 3b of the locking hook 3 is separated from the locking hole of the lock body, unlocking is completed, and the locking slide block 8 always has a tendency of moving towards the free end/connecting end close to the locking hook under the action of the locking slide block return spring 13. The locking slider return spring is used as a locking slider return driving piece for providing a return acting force for the locking slider, and other structural forms can also be adopted, for example, magnets are arranged at proper positions of the locking slider and the lock body, and the magnetic force between the magnets can also enable the locking slider to move towards the direction close to the free end/connecting end of the locking hook.

In order to prevent the locking hook 3 from being inertially released from the lock body 1 during the unlocking process, a second limiting groove 3d (fig. 10d) may be preferably provided at the connecting end 3b of the locking hook 3, the second limiting groove 3d being located below the first limiting groove 3 c. After the lock is unlocked, when the second limit groove 3d to which the lock hook 3 moves is opposite to the limit head 12 of the locking slide block 8, the locking slide block 8 is reset under the action of the locking slide block reset spring 13, the limit head 12 at the end part of the locking slide block 8 is accommodated in the second limit groove 3d, and the lock hook 3 can be limited to continue to move towards the direction far away from the lock body 1 through the matching of the locking slide block 8 (the limit head 12) and the second limit groove 3 d.

Referring to fig. 11, 12, 13 and 14, the emergency unlocking assembly includes a lever 14, a rotary lock knob 15, a rotary pin 16 and a rotary pin spring 17. The rotary lock knob 15 is used as a driving member for driving the iron core 10 to move, and the iron core 10 can be driven to leave the locking slide block 8 by the linkage 14 as a driving member. The trace 14 of the present embodiment has a hook-shaped head 14a, the head 14a of the trace 14 is located between the first latch slider 8-1 and the second latch slider 8-2, and the head 14a can be buckled on the top of the iron core 10. The linkage rod 14 can only move up and down along the axial direction of the linkage rod 14, the axial direction of the linkage rod 14 is parallel to the axial direction of the iron core 10, and when the linkage rod 14 moves downwards, the iron core 10 can be driven to move downwards by overcoming the elastic force of the iron core reset spring 11. The rotary lock knob 15 is rotatably disposed in a rotary lock knob mounting hole 1d (fig. 16) opened in the lock body 1 around its own axial direction, and the axial direction of the rotary lock knob 15 is perpendicular to the axial direction of the linkage rod 14 (i.e., the axial direction of the iron core). The rotation pin 16 is connected to the rotation lock knob 15 in a radial direction of the rotation lock knob 15, and a rotation pin spring 17 is provided between the rotation pin 16 and the rotation lock knob 15 in the present embodiment, and the rotation pin spring 17 provides a force to the rotation pin 16 in a radial direction away from the rotation lock knob 15. The trace 14 is provided with a fitting groove 14a, and the fitting groove 14a is adapted to be fitted with the rotation pin 16. The hole wall of the rotary lock knob mounting hole 1d is provided with a section of through hole extending along the circumferential direction of the hole wall, and the free end of the rotary pin 16 can extend into the assembling groove 14a of the linkage rod 14 through the through hole and can rotate within the range of the through hole. The length of the through hole can be correspondingly designed according to the requirement of rotating the rotary lock knob to achieve unlocking. When the rotary lock knob 15 rotates around its own axis, the rotary pin 16 is driven to rotate, and when the rotary pin 16 rotates, the linkage rod 14 is driven to move up and down by matching with the assembling groove 14a on the linkage rod 14. When the linkage 14 moves downwards, the iron core 10 can be pressed downwards, and when the linkage 14 moves upwards, the downward pressure on the iron core 10 is released, so that the iron core can move upwards. When the iron core 10 is pressed downwards by the linkage rod 14, the iron core 10 releases the limit of the locking slide block 8, so that the purpose of emergency unlocking is achieved. The rotation pin 16 may be connected to the iron core linkage 15 in other ways to move the linkage 14. The position of the linkage rod 14 can be changed according to the space in the lock body and the number of the locking sliders, for example, when only one locking slider is provided, the linkage rod can be arranged beside the locking slider, and under the condition that the space allows, the linkage rod can also be arranged below the locking slider or at other positions and connected with the iron core through other structures, so as to drive the iron core to move, for example, a protrusion protruding out of the iron core in the radial direction can be arranged on the iron core, and the linkage rod is hooked on the protrusion.

As a preferred embodiment of the present invention, the rotation lock knob 15 is further connected with a limit pin 18, the limit pin 18 is connected with the rotation lock knob 15 along the radial direction of the rotation lock knob 15, a limit pin spring 19 is provided between the limit pin 18 and the rotation lock knob 15, the limit pin 18 is compressed by the limitation of the hole wall of the rotation lock knob mounting hole 1d, the limit pin spring 19 provides an acting force for the limit pin 18 to keep away from the rotation lock knob 15, so that the limit pin 18 always tends to keep away from the rotation lock knob 15. The limit pin 18 and the rotation pin 16 are arranged at intervals, and an included angle between an axis of the limit pin 18 and an axis of the rotation pin 16 is 90 degrees in the embodiment, that is, the rotation lock knob 15 is arranged to rotate 90 degrees, so that the rotation pin 16 can completely press the iron core 10. In this embodiment, the rotation lock knob 15 is respectively provided with pin holes extending in the radial direction thereof, the rotation pin 16 and the stopper pin 18 are partially accommodated in the pin holes, and the head portions (free ends) are exposed from the pin holes. As shown in fig. 15, the lock body 1 is provided with a stopper pin receiving hole 1b that can receive the stopper pin 18, the stopper pin receiving hole 1b is provided along the radial direction of the rotary lock knob 15, and an opening of the stopper pin receiving hole 1b is located at a position where the head of the stopper pin 18 is located after the iron core 10 is completely pressed down by the rotary pin 16. When the rotary lock button 15 is rotated to perform emergency unlocking, the rotary pin 16 on the rotary lock button 15 presses the iron core 10 downwards, meanwhile, the limit pin 18 also rotates along with the rotary lock button 15, when the iron core 10 is pressed down to realize unlocking, the limit pin 18 just rotates to be opposite to the limit pin accommodating hole 1b, the limit pin 18 pops out under the elastic force action of the limit pin spring 19 and extends into the limit pin accommodating hole 1b, because the limit pin 18 can only move along the radial direction of the rotary lock button 15, the limit pin 18 can limit the rotary lock button 15 to continue rotating after extending into the limit pin accommodating hole 1b, the rotary lock button 15 can not rotate any more, and disposable emergency unlocking is realized. The padlock after the operation of once only emergent unblock need return the factory and disassemble the shell and reset back to rotary lock button, spacer pin etc. just can possess emergent unblock function again.

When current electron padlock receives external force, the condition that the iron core withdraws under inertia effect compression iron core reset spring backward can take place, when taking place this kind of condition, because the shutting slider has broken away from the spacing of iron core, alright carry out the unblock through applying external force. To prevent such an accident, it is preferred that an anti-throw assembly is also provided within the lock body 1, as shown in fig. 16, 17 and 18, the anti-throw assembly comprising an anti-throw pin 151, a top block 152 and a top block spring 153. A throw-preventing pin receiving hole a is provided in the latch slider, and the throw-preventing pin receiving hole a of this embodiment is provided in the first latch slider 8-1, and the axis of the throw-preventing pin receiving hole a (throw-preventing pin) is parallel to the axis of the iron core 10, and the throw-preventing pin 151 is received in the throw-preventing pin receiving hole a, and the throw-preventing pin 151 is immovable in the horizontal direction with respect to the throw-preventing pin receiving hole a. A top block accommodating hole 1c is formed in the lock body 1, the top block accommodating hole 1c (top block 152) is located below the locking slide block, the top block 152 is arranged in the top block accommodating hole 1c, and the axis of the top block accommodating hole 1c and the axis of the anti-throw pin accommodating hole a can be overlapped or staggered. The outside diameter of the top block 152 (the inside diameter of the top block receiving hole 1 c) is larger than the outside diameter of the anti-throw pin 151 (the inside diameter of the anti-throw pin receiving hole a) so that at least a part of the top end of the top block contacts the bottom of the locking slider, and the difference in the outside diameters between the top block 152 and the anti-throw pin 153 is smaller than the moving distance of the locking slider from the locked position to the unlocked position. The top block spring 153 abuts against between the bottom of the top block 152 and the bottom wall of the top block accommodating hole 1c, and the top block spring 153 pushes up the top block 152 upward, so that the top of the top block 152 abuts against the bottom of the anti-throw pin 151, and the anti-throw pin 151 is held in the anti-throw pin accommodating hole a (fig. 16).

When the padlock is subjected to external force, the movement inertia is generated, and the iron core 10 and the top block 152 move downwards against the elastic force of the iron core return spring 11 and the top block spring 153 respectively; at this time, since the top block 152 moves downward and retracts into the top block accommodating hole 1c, the anti-throwing pin 151 loses the support of the top block 152 and moves downward and falls into the top block accommodating hole 1c, the longitudinal space of the top block accommodating hole 1c is limited (the depth of the top block accommodating hole 1c is greater than the sum of the height of the top block 152 and the height of the top block spring 153 and is smaller than the sum of the length of the anti-throwing pin 151 and the heights of the top block 152 and the top block spring 153), the anti-throwing pin 151 cannot fall into the top block accommodating hole 1c completely but is clamped between the anti-throwing pin accommodating hole a and the top block accommodating hole 1c, the movement of the locking slider can still be limited, so that the situation of preventing throwing and inertial unlocking is achieved, and the phenomenon of unlocking of an electronic padlock is avoided. In order to ensure that the iron core 10 releases the position limitation of the slider assembly 8 by the shaking of the external force, the anti-shaking pin 151 is clamped between the anti-shaking pin accommodating hole a and the top block accommodating hole 1c to limit the movement of the slider assembly 8, the inertia of the anti-shaking pin 151 is larger than that of the iron core 10, and therefore the sum of the weights of the anti-shaking pin 151 and the top block 152 is larger than that of the iron core 10.

The above embodiments are only used to illustrate the technical solutions of the present invention and not to limit the same, although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the present invention can still be modified or replaced with equivalents, and any modification or equivalent replacement without departing from the spirit and scope of the present invention should be covered by the scope of the present invention.

Claims (10)

1. An anti-tamper electronic padlock comprising: lock body, latch hook, set up in the subassembly of shutting of separating in the lock body, the subassembly of shutting of separating includes the shutting slider, with shutting slider complex elasticity locating part, drive elasticity locating part reciprocating motion's locating part drive assembly, the shutting slider can be at the space between unblock position and the shutting position and remove, the moving direction of shutting slider with the moving direction of elasticity locating part is crossing, the moving space of elasticity locating part has at least partly to be located in the moving space of shutting slider, and has at least partly moving space and can make it break away from completely the moving space of shutting slider, its characterized in that:

still include emergent unblock subassembly, emergent unblock subassembly includes driving piece and driving medium, the driving medium connect in the driving piece with between the elasticity locating part, the driving piece is used for the drive the driving medium will elasticity locating part breaks away from the removal space of shutting slider.

2. The anti-tamper electronic padlock of claim 1, wherein:

the transmission part is a linkage rod arranged in parallel to the moving direction of the elastic limiting part, and a matching part is arranged on the linkage rod;

the driving piece is a rotary lock knob, the axial direction of the rotary lock knob is perpendicular to the moving direction of the elastic limiting piece, the rotary lock knob can be arranged in a rotary lock knob mounting hole formed in the lock body in a rotating mode around the axial direction of the rotary lock knob, and a through hole extending along the circumferential direction of the hole wall is formed in the hole wall of the rotary lock knob mounting hole; the rotary lock is characterized in that a rotary pin is arranged on the rotary lock button, the rotary pin is connected with the rotary lock button along the radial direction of the rotary lock button, the free end of the rotary pin penetrates out of a through hole in the hole wall of a mounting hole of the rotary lock button to be matched with the matching part, and the rotary lock button is driven by the rotary pin to move along with the linkage rod when rotating.

3. A security electronic padlock as claimed in claim 2, wherein: the limiting pin is positioned in the mounting hole of the rotary lock knob, the limiting pin can move along the self axial direction, and a limiting pin spring which enables the limiting pin to be far away from the rotary lock knob is arranged between the limiting pin and the rotary lock knob;

the lock body is provided with a limiting pin accommodating hole communicated with the rotary lock button mounting hole, the limiting pin accommodating hole is arranged along the radial direction of the rotary lock button, and an opening of the limiting pin accommodating hole is located at the position of the head part of the limiting pin when the rotary lock button rotates to enable the elastic limiting part to be separated from the moving space of the locking sliding block.

4. A security electronic padlock as claimed in claim 2 or claim 3 wherein: the elastic limiting part is an iron core arranged below the locking sliding block, the limiting part driving assembly comprises an electromagnet and an iron core reset spring arranged between the electromagnet and the iron core, the electromagnet drives the iron core to leave the moving space of the locking sliding block, and the iron core reset spring drives the iron core to enter the moving space of the locking sliding block.

5. The anti-tamper electronic padlock of claim 4, wherein: the lock hook is provided with a pair of first limit grooves matched with the locking sliding block;

the locking slide block comprises a first locking slide block and a second locking slide block, the first locking slide block comprises a first locking matching part and a first spring abutting part which are perpendicular to each other, the first locking matching part is matched with the first limiting groove, and a first iron core accommodating groove is formed in the bottom surface of the first locking matching part; the second locking sliding block comprises a second locking matching part and a second spring abutting part which are perpendicular to each other, the second locking matching part is matched with the other first limiting groove, a second iron core accommodating groove is formed in the bottom surface of the second locking matching part, and the first iron core accommodating groove and the second iron core accommodating groove form a groove for accommodating the top of the iron core;

the first spring abutting portion faces the second locking matching portion through the first locking matching portion, the second spring abutting portion faces the first locking matching portion through the second locking matching portion, and a locking slider reset spring is arranged between the first locking slider and the second locking slider.

6. The anti-tamper electronic padlock of claim 5, wherein: the linkage rod is provided with a hook-shaped head, the head is buckled at the top of the elastic limiting piece, and the head of the linkage rod is positioned between the first locking slide block and the second locking slide block;

the latching slider return spring is disposed between the first latching engagement portion and the second spring abutting portion and between the second latching engagement portion and the first spring abutting portion.

7. The anti-tamper electronic padlock of claim 4, wherein: the anti-throwing device comprises an anti-throwing pin, a top block and a top block spring;

an anti-throwing pin accommodating hole with the axis parallel to the moving direction of the elastic limiting piece is formed in the locking sliding block, and the anti-throwing pin is arranged in the anti-throwing pin accommodating hole;

a top block accommodating hole is formed in the lock body and is located below the anti-throwing pin accommodating hole, the top block is arranged in the top block accommodating hole, and the outer diameter of the top block is larger than that of the anti-throwing pin; the outer diameter difference between the top block and the anti-throwing pin is smaller than the moving distance of the locking slide block from the locking position to the unlocking position;

the ejector block spring is arranged between the bottom of the ejector block and the bottom wall of the ejector block accommodating hole and provides acting force for the ejector block to enable the anti-throwing pin to be abutted against the anti-throwing pin accommodating hole;

the depth of the top block accommodating hole is greater than the sum of the heights of the top block and the top block spring and less than the sum of the length of the anti-throwing pin and the heights of the top block and the top block spring; the sum of the weights of the anti-throwing pin and the top block is greater than or equal to the weight of the elastic limiting piece.

8. A security electronic padlock as claimed in claim 1, 2 or 3 wherein: still include the dustproof cap of an elastic material, dustproof cap with latch hook through-hole interference fit on the shell of lock body, the free end of latch hook can insert and pass dustproof cap through-hole.

9. The anti-tamper electronic padlock of claim 8, wherein: the dustproof cap comprises a body and a fixing part connected with the body into a whole, the fixing part is cylindrical and is located below the body, a radial sunken annular groove is formed in the outer wall of the fixing part, a circle of flange part protruding radially is arranged on the inner wall of a through hole of the lock hook, and the flange part is accommodated in the annular groove.

10. A security electronic padlock as claimed in claim 9, wherein: the top of the dustproof cap is provided with a water chute which is sunken downwards, the water chute extends through two opposite side surfaces of the body and passes through the dustproof cap through hole, and the periphery of the dustproof cap through hole is provided with an annular convex part which protrudes upwards from the bottom surface of the water chute.

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