CN216617198U

CN216617198U - Passive lockset

Info

Publication number: CN216617198U
Application number: CN202122704143.9U
Authority: CN
Inventors: 林福运; 栾光辉; 洪龙城; 饶光喜
Original assignee: Xiamen Meike Iot Technology Co ltd
Current assignee: Xiamen Meike Iot Technology Co ltd
Priority date: 2021-11-05
Filing date: 2021-11-05
Publication date: 2022-05-27
Anticipated expiration: 2031-11-05

Abstract

The utility model discloses a passive lock, comprising: the lock comprises a key and a lock body, wherein a power supply is arranged in the key, the lock body comprises an electromagnet, a lock shell, a slide rod, a first elastic part, a lock core, a movable pin and a second elastic part, the lock core is arranged in the lock shell, the electromagnet is accommodated in the lock core, the electromagnet is provided with a first accommodating chamber, the slide rod presses the first elastic part against the first accommodating chamber, a first axial groove is formed in the inner side wall of the lock shell, a second accommodating chamber is formed in the end part, far away from the key, of the side wall of the lock core, the movable pin presses the second elastic part against the second accommodating chamber, the tail part of the movable pin can penetrate out of the second accommodating chamber, and the slide rod movably supports the tail part of the movable pin.

Description

Passive lockset

Technical Field

The utility model relates to the technical field of locks, in particular to a passive lock.

Background

Along with the continuous improvement of science and technology level, the intellectuality more receives people's favor, the express delivery cabinet, automatic vending machine, the switch board, the locker, equipment such as ATM often needs the staff to maintain, they often need to carry the key of a big cluster just can open corresponding equipment, need carefully identify corresponding key when unblanking, the electronic lock that uses the electrified source is cracked by the people again easily, the security is lower, have the power on the key of passive electronic lock, only the circuit board on the tool to lock body, there is not the power, can solve above-mentioned problem well.

The existing passive electronic lock adopts a motor-driven unlocking mode, a lock body is driven by a motor to unlock during unlocking, a key needs to be pulled out during locking, and the lock can be closed only by resetting the lock body by a reset mechanism because a power supply is arranged on the key, so that the problems of complex structure and high cost exist in the passive electronic lock driven by the motor to unlock.

In view of the above, the present inventors have devised the present invention.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a passive lock with simple structure and low cost.

In order to achieve the purpose, the technical solution of the utility model is as follows:

a passive lockset, comprising: the lock comprises a key and a lock body, wherein a power supply is arranged in the key, the lock body comprises an electromagnet, a lock shell, a slide rod, a first elastic part, a lock core, a movable pin and a second elastic part, the lock core is arranged in the lock shell, the electromagnet is accommodated in the lock core, the electromagnet is provided with a first accommodating chamber, the slide rod presses the first elastic part against the first accommodating chamber, a first axial groove is formed in the inner side wall of the lock shell, a second accommodating chamber is formed in the end part, away from the key, of the side wall of the lock core, the movable pin presses the second elastic part against the second accommodating chamber, the tail part of the movable pin can penetrate out of the second accommodating chamber, and the slide rod can movably support the tail part of the movable pin; when a key is inserted into the lock cylinder, the power supply energizes the electromagnet, the electromagnet magnetically attracts the slide rod, the slide rod retracts to compress the first elastic piece, the slide rod is separated from supporting the tail of the movable pin, the key drives the lock cylinder to rotate, the head of the movable pin is separated from the first axial groove, and the second elastic piece is compressed to realize unlocking; when the rotary key is locked, the key drives the lock cylinder to rotate, the head of the movable pin is aligned to the first axial groove, the second elastic piece resets, the head of the movable pin is clamped into the first axial groove, the key is extracted, the electromagnet is powered off, the first elastic piece resets, the slide rod is supported to the tail of the movable pin again, and locking is achieved.

The lock body further comprises a steel ball, a sliding block and a third elastic piece, a first concave part is arranged at the end part, facing the lock body, of the key, a through hole for containing the steel ball is formed in the end part, close to the key, of the side wall of the lock cylinder, a third containing chamber is formed in one side, close to the key, of the lock cylinder, and the sliding block presses the third elastic piece against the third containing chamber; during unlocking, the steel ball is separated from the first axial groove, the steel ball sinks into the first concave part, the key presses the sliding block, the sliding block compresses the third elastic piece, and the key cannot pull out the lock cylinder; when the key rotates to the position where the head of the movable pin is aligned to the first axial groove, the steel ball is aligned to the first axial groove, the key is pulled out, the third elastic piece elastically resets, the sliding block resets to the position below the steel ball, the steel ball is supported, and the steel ball is limited to the first axial groove.

The lock core comprises a lock core head and a lock core tail, wherein at least one clamping block is convexly arranged on the lock core head, at least one clamping groove is formed in the end part, facing the lock core head, of the lock core tail, and the clamping block is clamped into the clamping groove, so that the lock core head and the lock core tail are linked.

The lock body further comprises a clamp spring, a clamp spring groove is formed in the inner side wall of the lock shell, the clamp spring is clamped at the tail of the lock cylinder and clamped in the clamp spring groove, and the lock cylinder is limited and fixed in the lock shell.

The lock body further comprises a circuit board, two copper columns are fixedly arranged on the circuit board at intervals, two spring ejector pins are arranged on the end face, facing the lock core, of the key at intervals, the spring ejector pins are electrically connected with the copper columns respectively, and the circuit board is detachably and fixedly arranged in the lock core.

The copper columns are respectively sleeved with an insulating sleeve.

And after the key is inserted into the lock cylinder to complete unlocking, the circuit board controls the electromagnet to be powered off according to the set electromagnet power-on time.

When the key rotates to the locking position, the movable pin is clamped into the first axial groove, and at the moment, if the electromagnet is powered off before the key is pulled out, the sliding rod can be immediately popped out to the tail part of the movable pin after the movable pin is clamped into the first axial groove; and if the electromagnet is still in the electrified state, the sliding rod is popped out to the tail part of the movable pin after the key is pulled out.

And the key is provided with an indicator light for indicating the power supply to electrify the electromagnet.

The time required for the lock body to be connected with the key until the indicator lamp is turned on is longer than the time required for the electromagnet to suck back the sliding rod.

After the technical scheme is adopted, through the structural design of the lock body and the key, when the key is inserted into the lock cylinder for unlocking, the electromagnet of the lock body is electrified by using the power supply in the key, the electromagnet of the lock body magnetically attracts the slide bar, the slide bar retracts to compress the first elastic piece, the slide bar is separated from supporting the tail part of the movable pin, and the key can drive the lock cylinder to rotate for unlocking; when the key is rotated to lock, the key drives the lock cylinder to rotate until the head of the movable pin is aligned to the first axial groove, the key is pulled out, the electromagnet is powered off, the first elastic piece resets to enable the sliding rod to be supported against the tail of the movable pin again, the second elastic piece resets, and the head of the movable pin is clamped into the first axial groove to realize locking; therefore, the lock is unlocked and locked by electrifying and powering off the electromagnet of the lock body, unlocking and setting a reset mechanism are not required by utilizing a motor driving mode, the overall structure is simple, and the cost is low.

Drawings

FIG. 1 is a schematic diagram of a locked state according to the present invention;

FIG. 2 is a schematic structural view of an unlocked state of the present invention;

FIG. 3 is an exploded view of the present invention;

FIG. 4 is a cross-sectional view of a locked lock body according to the present invention;

FIG. 5 is a cross-sectional view of the present invention after unlocking;

FIG. 6 is a perspective view of the lock housing of the present invention;

FIG. 7 is a schematic view of the face of the key of the present invention facing the lock body;

FIG. 8 is a schematic view of the lock body without the lock shell;

FIG. 9 is a schematic view of an assembly structure of the circuit board and the cylinder head;

fig. 10 is a perspective view of a key of the present invention.

[ notation ] to show

Key 1

First recess 11 spring ejector pin 12

Indicator light 13

Lock body 2

Electromagnet 20 lock case 21

The first chamber 201 has a first axial recess 211

Jump ring groove 212

Slide bar 22 first elastic member 23

Lock core 24 removable pin 25

The through hole 242 of the second accommodating chamber 241

Third chamber 243 lock core head 244

Lock cylinder tail 245

Clamp block 2441 clamp groove 2451

Second elastic member 26 steel ball 27

Third elastic member 29 of slider 28

Clamp spring 01 circuit board 02

Copper column 03 insulating sleeve 04

Column 05.

Detailed Description

To achieve the above objects and advantages, the present invention provides a novel and improved technical means and structure, which will be described in detail in connection with the preferred embodiments of the present invention.

Referring to fig. 1 to 10, the present invention discloses a passive lock device, including: the lock comprises a key 1 and a lock body 2, wherein a power supply is arranged in the key 1, the lock body 2 comprises an electromagnet 20, a lock shell 21, a sliding rod 22, a first elastic piece 23, a lock core 24, a movable pin 25 and a second elastic piece 26, the lock core 24 is arranged in the lock shell 21, the electromagnet 20 is arranged in the lock core 24, the electromagnet 20 is provided with a first accommodating chamber 201, the sliding rod 22 presses the first elastic piece 23 against the first accommodating chamber 201, the inner side wall of the lock shell 21 is provided with a first axial groove 211, the end part, far away from the key 1, of the side wall of the lock core 24 is provided with a second accommodating chamber 241, the movable pin 25 presses the second elastic piece 26 against the second accommodating chamber 241, the tail part of the movable pin 25 can penetrate out of the second accommodating chamber 241, and the sliding rod 22 movably supports the tail part of the movable pin 25; when the key 1 is inserted into the lock cylinder 24, the power supply energizes the electromagnet 20, the electromagnet 20 magnetically attracts the sliding rod 22, the sliding rod 22 retracts to compress the first elastic piece 23, the sliding rod 22 is separated from supporting against the tail part of the movable pin 25, the key 1 drives the lock cylinder 24 to rotate, the head part of the movable pin 25 is separated from the first axial groove 211, and the second elastic piece 26 is compressed to realize unlocking; when the key 1 is rotated to be locked, the key 1 drives the lock cylinder 24 to rotate, the head of the movable pin 25 is aligned to the first axial groove 211, the key 1 is pulled out, the electromagnet 20 is powered off, the first elastic piece 23 is reset, the sliding rod 22 is supported against the tail of the movable pin 25 again, the second elastic piece 26 is reset, and the head of the movable pin 25 is clamped into the first axial groove 211 to realize locking; wherein, the surface of the lock core 24 facing the key 1 is provided with a plug hole for inserting the key 1, and the head of the movable pin 25 is a ball head; because the lock body 2 of the utility model has the ID of the lock body, the key 1 of the utility model is connected with a computer, software in the computer can authorize the corresponding key 1 to unlock the lock body 2 with the corresponding ID, so that the lock body 2 can be unlocked only by the correct key 1, and when the software in the computer authorizes the corresponding key 1, the computer and the key 1 of the utility model complete the authorization in a wireless connection mode or a wired connection mode such as Bluetooth and the like, which is the prior art and is not described herein again.

Therefore, through the structural design of the lock body 2 and the key 1, when the key 1 is inserted into the lock cylinder 24 for unlocking, the electromagnet 20 of the lock body 2 is electrified by using a power supply in the key 1, the electromagnet 20 of the lock body 2 magnetically attracts the sliding rod 22, the sliding rod 22 retracts to compress the first elastic piece 23, the sliding rod 22 is separated from supporting the tail part of the movable pin 25, and the key 1 can drive the lock cylinder 24 to rotate for unlocking; when the key 1 is rotated to be locked, the key 1 drives the lock cylinder 24 to rotate until the head of the movable pin 25 is aligned to the first axial groove 211, the key 1 is pulled out, the electromagnet 20 is powered off, the first elastic piece 23 is reset, the sliding rod 22 is supported against the tail of the movable pin 25 again, the second elastic piece 26 is reset, and the head of the movable pin 25 is clamped into the first axial groove 211 to realize locking; therefore, the lock is unlocked and locked by electrifying and powering off the electromagnet 20 of the lock body 2, unlocking and setting a reset mechanism are not required by utilizing a motor driving mode, the whole structure is simple, and the cost is low.

Moreover, the lock body 2 may further include a steel ball 27, a slider 28 and a third elastic member 29, the end of the key 1 facing the lock body 2 is provided with a first concave portion 11, the end of the side wall of the key cylinder 24 adjacent to the key 1 is provided with a through hole 242 for accommodating the steel ball 27, one side of the key cylinder 24 adjacent to the key 1 is provided with a third accommodating chamber 243, and the slider 28 presses the third elastic member 29 against the third accommodating chamber 243; in unlocking, the steel ball 27 is disengaged from the first axial groove 211, the steel ball 27 sinks into the first concave part 11, the key 1 presses the slide block 28, the slide block 28 compresses the third elastic element 29, and the key 1 cannot pull out the lock cylinder 24; in the locking process, when the key 1 rotates until the head of the movable pin 25 is aligned to the first axial groove 211, the steel ball 27 is aligned to the first axial groove 211, the key 1 is pulled out, the third elastic element 29 elastically resets, the slide block 28 resets to the position below the steel ball 27 and supports against the steel ball 27, and the steel ball 27 is limited in the first axial groove 211; therefore, the key 1 can be pulled out only after being locked through the matching arrangement of the steel ball 27, the slide block 28 and the third elastic element 29; after unlocking is completed and before the key 1 is rotated after the key 1 is inserted into the lock cylinder 24, the first concave part 11 is aligned with the first axial groove 211, the first concave part 11, the first axial groove 211 and the steel ball 27 are positioned on the same straight line, the key 1 can be pulled out, the steel ball 27 can be pushed by the first concave part 11 to be clamped into the first axial groove 211, when the key 1 is not rotated after being inserted into the lock cylinder 24 for a certain time, the circuit board 02 stops supplying power to the electromagnet 20, the electromagnet 20 automatically pops up and returns to a locking state; the first concave portion 11 and the first axial groove 211 may be both curved surfaces of circular arcs.

Next, in order to facilitate the assembly and disassembly, the lock core 24 may include a lock core head 244 and a lock core tail 245, the lock core head 244 is convexly provided with at least one latch 2441, an end of the lock core tail 245 facing the lock core head 244 is provided with at least one latch groove 2451, and the latch 2441 is latched into the latch groove 2451, so that the lock core head 244 and the lock core tail 245 are linked; in an embodiment, the number of the clamping blocks 2441 is two and the clamping blocks 2451 are arranged at intervals, and the number of the clamping grooves 2451 is two and the clamping grooves are arranged at intervals, but not limited thereto; the electromagnet 20, the movable pin 25, the first elastic element 23, the second elastic element 26, the sliding rod 22, the third elastic element 29 and the sliding block 28 are all accommodated in the lock cylinder tail 245; the first elastic member 23, the second elastic member 26 and the third elastic member 29 may be springs, but not limited thereto.

Further, in order to firmly arrange the lock cylinder 24 in the lock case 21 and prevent the lock cylinder 24 from being removed, the lock body 2 may further include a clamp spring 01, a clamp spring slot 212 is formed in an inner side wall of the lock case 21, the clamp spring 01 is clamped at the lock cylinder tail 245 and is clamped in the clamp spring 01 slot 212, and the lock cylinder 24 is limited and fixed in the lock case 21.

Secondly, in order to facilitate the power supply to energize the electromagnet 20, the lock body 2 may further include a circuit board 02, two copper columns 03 arranged at intervals are fixedly arranged on the circuit board 02, two spring ejector pins 12 arranged at intervals are arranged on the end surface of the key 1 facing the lock cylinder 24, the spring ejector pins 12 are electrically connected with the copper columns 03 respectively, and the circuit board 02 is detachably and fixedly arranged in the lock cylinder 24; the circuit board 02 is arranged in the lock cylinder head 244, and the end part of the slide block 28 far away from the lock cylinder tail 245 can be clamped in an insertion hole of the lock cylinder head 244 for inserting the key 1; the face of lock core head 244 towards circuit board 02 is equipped with post 05, post 05 is connected with the negative pole of circuit board 02 through the welded mode, and one of them copper post 03 is the positive pole of circuit board 02, and another copper post 03 is the communication terminal that has the communication effect to let the power in the key 1 supply power for electro-magnet 20.

Further, in order to save power, when the key 1 is inserted into the key cylinder 24 and the key is unlocked, the circuit board 02 may control the electromagnet 20 to be powered off according to the set power-on time of the electromagnet 20.

Wherein, when the key 1 rotates to the locking position, the movable pin 25 is blocked in the first axial groove 211, and at this time, if the electromagnet 20 is powered off before the key 1 is pulled out, the sliding rod 22 will pop up to the tail of the movable pin 25 immediately after the movable pin is blocked in the first axial groove 211; if the electromagnet 20 is still energized, the sliding rod 22 springs out to the end of the movable pin 25 after the key 1 is pulled out. Further, in order to protect the copper cylinder 03 and prevent the conduction between the copper cylinder 03 and the lock cylinder head 244, the copper cylinder 03 is respectively sleeved with an insulating sleeve 04.

In addition, the key 1 can be provided with an indicator light 13 for indicating the power supply to electrify the electromagnet 20; when the lock body 2 confirms that the key 1 is the correct key, the power supply energizes the electromagnet 20 to drive the electromagnet 20, and the indicator light 13 is turned on.

Further, the time required from the time when the lock body 2 is connected with the key 1 to the time when the indicator light 13 is turned on can be longer than the time required for the electromagnet 20 to suck back the sliding rod 22; so that when the indicator light 13 on the key 1 is illuminated it indicates that the electromagnet 20 has retracted the slide bar 22 and the key 1 can be rotated to unlock.

While the utility model has been described with reference to specific embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the utility model. Therefore, the scope of the present invention should not be limited to the embodiments disclosed, but includes various alternatives and modifications without departing from the present invention, which are encompassed by the claims.

Claims

1. A passive lockset, comprising: the lock comprises a key and a lock body, wherein a power supply is arranged in the key, the lock body comprises an electromagnet, a lock shell, a slide rod, a first elastic part, a lock core, a movable pin and a second elastic part, the lock core is arranged in the lock shell, the electromagnet is accommodated in the lock core, the electromagnet is provided with a first accommodating chamber, the slide rod presses the first elastic part against the first accommodating chamber, a first axial groove is formed in the inner side wall of the lock shell, a second accommodating chamber is formed in the end part, away from the key, of the side wall of the lock core, the movable pin presses the second elastic part against the second accommodating chamber, the tail part of the movable pin can penetrate out of the second accommodating chamber, and the slide rod can movably support the tail part of the movable pin;

when a key is inserted into the lock cylinder, the power supply energizes the electromagnet, the electromagnet magnetically attracts the slide rod, the slide rod retracts to compress the first elastic piece, the slide rod is separated from supporting the tail of the movable pin, the key drives the lock cylinder to rotate, the head of the movable pin is separated from the first axial groove, and the second elastic piece is compressed to realize unlocking;

when the rotary key is locked, the key drives the lock cylinder to rotate, the head of the movable pin is aligned to the first axial groove, the second elastic piece resets, the head of the movable pin is clamped into the first axial groove, the key is extracted, the electromagnet is powered off, the first elastic piece resets, the slide rod is supported to the tail of the movable pin again, and locking is achieved.

2. The passive lockset of claim 1 wherein: the lock body further comprises a steel ball, a sliding block and a third elastic piece, a first concave part is arranged at the end part, facing the lock body, of the key, a through hole for containing the steel ball is formed in the end part, close to the key, of the side wall of the lock cylinder, a third containing chamber is formed in one side, close to the key, of the lock cylinder, and the sliding block presses the third elastic piece against the third containing chamber;

in unlocking, the steel ball is separated from the first axial groove, the steel ball sinks into the first concave part, the key presses the sliding block, the sliding block compresses the third elastic piece, and the key cannot pull out the lock cylinder; when the key rotates to the position where the head of the movable pin is aligned to the first axial groove, the steel ball is aligned to the first axial groove, the key is pulled out, the third elastic piece elastically resets, the sliding block resets to the position below the steel ball, the steel ball is supported, and the steel ball is limited to the first axial groove.

3. A passive lock according to any of claims 1 or 2, wherein: the lock core comprises a lock core head and a lock core tail, wherein at least one clamping block is convexly arranged on the lock core head, at least one clamping groove is formed in the end part, facing the lock core head, of the lock core tail, and the clamping block is clamped into the clamping groove, so that the lock core head and the lock core tail are linked.

4. A passive lock according to claim 3, wherein: the lock body further comprises a clamp spring, a clamp spring groove is formed in the inner side wall of the lock shell, the clamp spring is clamped at the tail of the lock cylinder and clamped in the clamp spring groove, and the lock cylinder is limited and fixed in the lock shell.

5. A passive lock according to any of claims 1 or 2, wherein: the lock body further comprises a circuit board, two copper columns are fixedly arranged on the circuit board at intervals, two spring ejector pins are arranged on the end face, facing the lock core, of the key at intervals, the spring ejector pins are electrically connected with the copper columns respectively, and the circuit board is detachably and fixedly arranged in the lock core.

6. The passive lockset of claim 5 wherein: the copper columns are respectively sleeved with an insulating sleeve.

7. The passive lockset of claim 5 wherein: and after the key is inserted into the lock cylinder to complete unlocking, the circuit board controls the electromagnet to be powered off according to the set electromagnet power-on time.

8. The passive lockset of claim 7 wherein: when the key rotates to the locking position, the movable pin is clamped into the first axial groove, and at the moment, if the electromagnet is powered off before the key is pulled out, the sliding rod can be immediately popped out to the tail part of the movable pin after the movable pin is clamped into the first axial groove; and if the electromagnet is still in the electrified state, the sliding rod is popped out to the tail part of the movable pin after the key is pulled out.

9. A passive lock according to any of claims 1 or 2, wherein: and the key is provided with an indicator light for indicating the power supply to electrify the electromagnet.

10. The passive lockset of claim 9 wherein: the time required for the indicator lamp to be turned on after the lock body is connected with the key is longer than the time required for the electromagnet to suck back the sliding rod.