TWM462290U - An electronic lock - Google Patents

Abstract

The utility model relates to an electronic lock which comprises a lock body (6) and a lock cylinder module (100), wherein a lock cylinder containing cavity (61) used for containing the lock cylinder module (100) is arranged on the lock body (6); the lock cylinder module (100) comprises a housing consisting of a metal head cover (71), a connecting cylinder (72) and a tail cover (73), and an electronic lock cylinder (70) arranged in the housing; the electronic lock cylinder (70) comprises an electronic lock head (12) used for inducing an unlocking signal; the metal head cover (71) is arranged on the electronic lock head (12) in a sleeving manner; an end face (711) of the metal head cover (71) is region-shaped with no lock hole; and the periphery of the metal head cover (71) and an inner wall of the lock cylinder containing cavity (61) form a metal seal structure. The electronic lock can prevent dust and moisture from entering the lock cylinder containing cavity (61), so that the service life of the electronic lock is prolonged; and the electronic lock is applicable to places inconvenient for power supply, such as a field or an emergency occasion.

Description

Electronic lock

The present invention relates to an anti-theft article, and more particularly to an electronic lock.

In the existing electronic lock, the lock cylinder generally needs to be continuously energized, and the user performs a password recognition process through the electronic component when the lock is unlocked. If the password is verified, the lock is powered or mechanically driven (such as a key unlock). The method causes the lock cylinder to shift the element, thereby opening the lock, otherwise the lock state is maintained. However, the shortcoming of these electronic locks is that, on the one hand, not all locks meet the requirements of being able to be energized at any time, especially for targets that may be relocated at any time (such as locks on disaster relief equipment or emergency equipment), existing electronic locks. Can not meet their use requirements. Secondly, in the case where the password is confirmed to be unlocked by the key machine, since the lock cylinder is exposed to the air for a long time, it is easy for dust, rain and the like to enter the lock hole for a long time, resulting in blockage. As a result, even if the password pairing is successful, the lock cannot be opened. Electronic locks.

In response to the above problems, the applicant of the present application filed on September 13, 2012, the application number is: 201210338440.9, the name of which is an electronic lock core and an electronic key of the Chinese invention patent, the electronic lock core and electronic key disclosed in the application The invention solves the problem that the electronic lock core must be energized in the conventional technology. The present invention is based on the patent, and the electronic lock core is further developed to enable practical application.

The purpose of the novel is to overcome the deficiencies of the prior art and provide an electronic lock that can be locked and opened without the lock body being energized, and can also prevent dust and water from entering the lock core cavity.

In order to achieve the above object, the following technical solution is adopted: an electronic lock includes a lock body and a lock core module, and the lock body is provided with a lock core cavity for accommodating the lock core module, and the lock core module Including a metal head cover, a connection a casing composed of a cylinder and a tail cover, and an electronic lock cylinder built in the casing, the electronic lock cylinder includes an electronic lock for sensing an unlocking signal, and the metal cover is sleeved on the electronic lock The end surface of the metal head cover has a shape without a keyhole, and the periphery of the metal head cover forms a metal sealing structure with the inner wall of the lock cylinder cavity.

Further, the lock cylinder cavity is divided into an inner cavity and an outer cavity, wherein the outer cavity extends to an outer surface of the lock body, and the inner cavity and the outer cavity are separated by a boss, the boss and An outer spring is disposed between the metal head cover, and the connecting cylinder is provided with a limiting hole in a relative direction, and the electronic lock core is provided with a locking pin that is engaged with the limiting hole.

Still further, the lock body is further provided with a latch that linearly displaces relative to the lock body, the latch has a U-shaped structure, and the U-shaped structure is connected to the lock body through two free ends.

Further, the lock body is provided with a first cavity for receiving the buckle and a second cavity, and the first cavity and the second cavity are respectively connected to the lock core cavity and are in the communication port The positional ball is set at a position, and the buckle is respectively provided with a groove at a free end to cooperate with the limit ball.

Further, the tail cover comprises a tail cover body and a tail cover protrusion, the tail cover protrusion is located away from the metal head cover, and a tail cover step is formed between the tail cover protrusion and the tail cover body .

As a specific embodiment, the inner cavity and the outer cavity have a circular cross section, and the metal head cover has a circular cross section.

As a specific embodiment, the surface structure of the end surface of the metal head cover is a plane, a spherical surface or a concave surface.

As a specific embodiment, the electronic lock cylinder includes a lock cylinder main body and a lock cylinder assembly mounted in the lock core main body, and the end of the lock core main body is provided with an electronic lock head, and the lock core element includes the electronic component a PCB board of the lock head and a spring seat and a slider set away from the PCB board, the spring seat is fixed to the inner wall of the lock core body, and the slider set is connected to the spring seat through a built-in spring, the PCB A heat shrinkable metal wire and a positive electrode lead are sequentially disposed between the plate and the slider group, and the heat shrinkable metal wire and the positive electrode lead are tensioned to compress the inner spring.

Further, the slider group is divided into a piston head and a limit head in the axial direction. The outer wall of the piston head is in contact with the inner wall of the lock core body, the limit head is dumbbell-shaped, the first ball head is connected to the piston head through a step surface, and the second ball head passes through a low temperature metal column and the first ball The head is connected, and the piston head, the low temperature metal post and the first ball head are each provided with a through hole in an axial direction, and the positive electrode lead is connected to the second ball head via the through hole.

Further, the lock core body has a cylindrical shape, and the lock core body is provided with a pin hole at a position close to the low temperature metal column, and the pin hole is movably provided with a lock that is radially displaced under the driving of the limit head pin.

Compared with the prior art, the present invention has the beneficial effects of: forming a metal sealing structure around the periphery of the metal head cover and the inner wall of the lock cylinder cavity, thereby preventing dust and water from entering the lock core cavity and prolonging the service life of the electronic lock; By setting the end face of the electronic lock to the shape of the face, the contact area of the electronic lock and the electronic key can be improved, and the opening of the electronic lock can be facilitated. The electronic lock body of the present invention can work without power supply, and avoids the disadvantage that the existing electronic lock fails when there is no power supply, and is suitable for places with inconvenient power supply such as in the field or in emergency situations.

100‧‧‧Electronic lock cylinder

12‧‧‧Electronic lock

14‧‧‧Lock core body

16‧‧‧Clock assembly

18‧‧‧PCB board

19‧‧‧negative contact

20‧‧‧positive lead

22‧‧‧ Built-in spring

26‧‧‧Nitinol wire

27‧‧‧Reflow wire

28‧‧‧Low temperature metal column

29‧‧‧Spring seat

3‧‧‧Electronic key

30‧‧‧ Key body

31‧‧‧ Identification head

32‧‧‧ switch

4‧‧‧External spring

50‧‧‧Limited head

52‧‧‧Locking

53‧‧ ‧ pinhole

54‧‧‧ piston head

55‧‧‧First ball head

56‧‧‧second ball head

6‧‧‧Lock body

61‧‧‧Clock cavity

611‧‧‧ lumen

612‧‧‧External cavity

613‧‧‧Boss

62‧‧‧Lock

63‧‧‧First cavity

64‧‧‧Second cavity

65, 66‧‧‧ Limit ball

67, 68‧‧‧ grooves

70‧‧‧Electronic lock cylinder

71‧‧‧Metal head cover

711‧‧‧ unlocking surface

72‧‧‧Connecting tube

721, 722‧‧‧ Limit holes

73‧‧‧Tail cover

731‧‧‧Tail cover body

732‧‧‧Tail cover bulge

733‧‧‧ tail step

S2‧‧‧Electronic switch

The first figure is a schematic diagram of the interlocking of the electronic lock and the electronic key of the present invention.

Figure 2 is a schematic view of the electronic lock of the present invention in an open state.

Fig. 3 is an enlarged schematic view (locked state) of the electronic lock cylinder of the electronic lock of the present invention.

Fig. 4 is an enlarged schematic view (open state) of the electronic lock core of the electronic lock of the present invention.

Referring to Figures 1 and 2, the electronic lock of the present invention includes a lock body 6 and a lock core module 100. The lock body 6 is provided with a lock core cavity for receiving the lock core module 100. 61. The lock cylinder module 100 includes a housing composed of a metal head cover 71, a connecting barrel 72 and a tail cover 73, and an electronic lock core 70 built in the housing. The electronic lock core 70 includes An electronic lock head 12 for sensing an unlocking signal, the metal head cover 71 is sleeved on the electronic lock head 12, and an end surface of the electronic lock head 12 abuts an inner end surface of the metal head cover 71, and an end surface of the metal head cover 71 is In the shape of the keyhole, the periphery of the metal head cover 71 forms a metal sealing structure with the inner wall of the lock cylinder cavity 61.

In this embodiment, the lock cylinder cavity 61 is divided into an inner cavity 611 and an outer cavity. 612, wherein the outer cavity 612 extends to an outer surface of the lock body 6. The inner cavity 611 and the outer cavity 612 are separated by a boss 613. An outer portion is disposed between the boss 613 and the metal head cover 71. The connecting sleeve 72 is provided with a limiting hole 721, 722 in the opposite direction. The electronic lock cylinder 70 is provided with a locking pin 52 which is engaged with the limiting hole 721, 722.

The electronic lock in this embodiment is preferably a padlock, and the padlock is provided with a latch 62 which is linearly displaced relative to the lock body 6. The latch 62 has a U-shaped structure, and the U-shaped structure passes through two The free end is connected to the lock body 6. The lock body 6 is provided with a first cavity 63 and a second cavity 64 for receiving the lock 62. The first cavity 63 and the second cavity 64 are disposed. The plurality of balls 65 and 66 are respectively disposed at the position of the communication port, and the buckles 62 are respectively provided with grooves 67 and 68 at the free ends to cooperate with the limiting balls 65 and 66. The tail cover 73 includes a tail cover body 731 and a tail cover protrusion 732. The tail cover protrusion 732 is located away from the metal head cover 71. A tail is formed between the tail cover protrusion 732 and the tail cover body 731. Cover step 733. The inner cavity 611 and the outer cavity 612 are circular in cross section, and the metal head cover 71 has a circular cross section.

Referring to FIGS. 3 and 4 , the electronic lock cylinder includes a lock cylinder main body 14 and a lock cylinder assembly 16 mounted in the lock core main body 14 . The lock core main body 14 is provided with an electronic lock 12 at an end thereof. The lock core component 16 includes a PCB board 18 adjacent to the electronic lock head 12 and a spring seat 29 and a slider set which are sequentially away from the PCB board 18. The spring seat 29 is fixed to the inner wall of the lock cylinder main body 14, and the slide The block group is connected to the spring seat 29 via a built-in spring 22, and a heat shrinkable metal wire and a positive electrode lead 20 are sequentially disposed between the PCB board 18 and the slider set, and the heat shrinkable metal wire and the positive electrode lead are disposed. 20 sheets of the built-in spring 22 are in a compressed state, the PCB board 18 includes a first micro processing unit and a first data interaction module and an electronic switch S2 connected to the first micro processing unit, the electronic switch S2 One end is connected to the connection point of the positive electrode lead 20 on the slider group through a return wire 27, and the other end is grounded. The electronic lock 12 is connected to the first micro processing unit, and the electronic switch S2 is preferably a normally open type electronic a switch, the first data interaction module includes a first input module and A first output module.

In this embodiment, the heat-shrinkable metal wire is a nickel-titanium alloy wire 26, and the electronic switch S2 is a normally open type. The PCB board is provided with a negative electrode contact 19 near the edge, and the electronic switch S2 passes through the negative electrode contact. 19 is grounded, and at the same time, the cylinder body 14 is also in electrical communication with the negative contact 19. The slider group is divided into a piston head 54 and a limit head 50 in the axial direction, the piston head The outer wall of the lock core body 14 is in contact with the inner wall of the lock cylinder main body 14 and is slid in the lock core main body 14 by a spring. The spring seat 29 is provided with a shaft hole in the axial direction, and the nitinol wire 26 and the return wire 27 are provided. Through the shaft hole. The limiting head 50 is dumbbell-shaped, and the first ball head 55 is connected to the piston head 54 through a stepped surface, and the second ball head 56 is connected to the first ball head 55 through a low temperature metal column 28, the piston head 54, The low temperature metal post 28 and the first ball head 55 are each provided with a through hole in the axial direction, and the positive electrode lead 20 is connected to the second ball head 56 via the through hole. The lock cylinder main body 14 has a cylindrical shape, and the lock core main body 14 is disposed at a position close to the low temperature metal post 28 with a pin hole 53. The pin hole 53 is movably disposed to be radially driven by the limit head 50. The displaced locking pin 52 can be provided with an abutting spring at the periphery of the locking pin 52 when the electronic lock is made. When the locking pin 52 is in the vacancy in the middle of the limiting head 50, the axis of the locking cylinder main body 14 is The position is close. The material of the low temperature metal column 28 is an alloy of one or more of lead, tin, antimony and indium, and the melting point thereof is preferably limited to 90 ° C or less.

Referring to FIG. 1 , an electronic key 3 is further disposed in cooperation with the electronic lock. The electronic key 3 includes a key body 30. One end of the key body 30 is provided with an identification head 31 that is mated with the metal head cover 71. Increasing the contact area between the electronic key 3 and the end surface of the metal head cover 71 to facilitate the transmission of electrical signals, the mating portions of the metal head cover 71 and the identification head 31 are disposed as mating abutment regions (ie, the unlocking surface 711), The structure may be a plane and a plane, or the spherical surface and the concave surface are opposite to each other. In the embodiment, the unlocking surface 711 is preferably a flat surface.

Based on the above structure, the following describes the working process of the electronic lock: Please refer to Figures 1 and 3, the lock body 6 of the present invention does not need to be energized, and the electronic lock cylinder 70 is in a normal state because of the nitinol wire 26 and the positive electrode lead 20 The tension acts to cause the inner spring 22 to be in a slightly compressed state. Due to the restriction of the first ball head 55 on the limiting head 50 to the locking pin 52, the locking pin 52 is pushed away from the lock by the surface of the first ball head 55. The axis of the core body 14 is such that the locking pin 52 catches the limiting holes 721 and 722 on the connecting cylinder 722, so that the housing of the key cylinder module 100 cannot move upward, and the limiting balls 65 and 66 respectively and the locking buckle The grooves 67 and 68 on the 62 cooperate with the limit so that the lock 62 and the lock body 1 remain locked.

Referring to Figures 2 and 4, when the electronic lock needs to be turned on, the electronic key 3 is docked with the metal head cover 71. The electronic key 3 is provided with a power supply and a control unit, and when the identification head 31 of the electronic key 3 and the metal head cover 71 are unlocked. After the 711 is connected, the power switch 32 is turned on, and the electronic key is The control unit of the key 31 transmits the encoded information to the circuit board 18 in the electronic lock 12 via the unlocking surface 711. If the encoded information matches the encoded information preset in the PCB 18, the first microprocessor commands the electronic switch. Turning on, thereafter, the current from the electronic key 3 flows through the PCB board 18 and turns on the Nitinol wire 26, the positive electrode lead 20, the return wire 27, the electronic switch, and finally grounds to form a conduction loop. Once the nitinol wire 26 is turned on, the heat generated after energization causes its own temperature to rise and contract, and the contraction action causes the slider group in the lock cylinder main body 14 to move in the direction of the spring seat 29 under the pulling force, and the inner spring 22 It is also further compressed, and when the limit head 50 of the slider set (specifically, the first ball head 55) leaves the position where the lock pin 52 is located, it can no longer limit the lock pin 52, so that the lock pin 52 Also moving to the position of the axis of the lock cylinder main body 14 by the compression spring preset to the lock body, and finally staying in the side groove formed by the first ball head 55 and the second ball head 56 and the low temperature metal post 28 . At this time, the fiber holes 721 and 722 on the connecting cylinder 72 are not restrained, so that the housing as a whole is ejected by the compression spring 4 to eject the lock cylinder cavity 61. When the tail cover 73 moves a certain distance toward the outer cavity 612 of the lock cylinder cavity 61, the tail cap main body 731 no longer limits the limit balls 65, 66, and the limit balls 65, 66 are received by the grooves 67, 68. The squeezing moves in the direction of the tail cap projection 732, and the position of the latch 62 is no longer restricted, thereby realizing the opening of the electronic lock.

It should be understood that the present invention is not limited to the embodiments described above, and that various changes and modifications may be made without departing from the spirit and scope of the inventions. New types also mean including these changes and variants.

100‧‧‧Electronic lock cylinder

3‧‧‧Electronic key

30‧‧‧ Key body

31‧‧‧ Identification head

32‧‧‧ switch

4‧‧‧External spring

52‧‧‧Locking

6‧‧‧Lock body

61‧‧‧Clock cavity

611‧‧‧ lumen

613‧‧‧Boss

62‧‧‧Lock

63‧‧‧First cavity

64‧‧‧Second cavity

65, 66‧‧‧ Limit ball

67, 68‧‧‧ grooves

70‧‧‧Electronic lock cylinder

71‧‧‧Metal head cover

711‧‧‧ unlocking surface

72‧‧‧Connecting tube

721, 722‧‧‧ Limit holes

73‧‧‧Tail cover

731‧‧‧Tail cover body

732‧‧‧Tail cover bulge

733‧‧‧ tail step

Claims (10)

An electronic lock includes a lock body and a lock core module, wherein the lock body is provided with a lock core cavity for accommodating the lock core module, and the lock core module comprises a metal head cover and a connection a casing composed of a cylinder and a tail cover, and an electronic lock cylinder built in the casing, the electronic lock cylinder includes an electronic lock for sensing an unlocking signal, and the metal cover is sleeved on the electronic lock The end surface of the metal head cover has a shape without a keyhole, and the periphery of the metal head cover forms a metal sealing structure with the inner wall of the lock cylinder cavity. The electronic lock of claim 1, wherein the lock cylinder cavity is divided into an inner cavity and an outer cavity, wherein the outer cavity extends to an outer surface of the lock body, the inner cavity and the outer cavity An outer spring is disposed between the boss and the metal head cover, and the connecting cylinder is provided with a limiting hole in a relative direction, and the electronic lock core is provided with a matching limit with the limiting hole. a lock pin. The electronic lock of claim 2, wherein the lock body is further provided with a latch that linearly displaces relative to the lock body, the lock has a U-shaped structure, and the U-shaped structure passes through two free The end is connected to the lock body. The electronic lock of claim 3, wherein the lock body further comprises a first cavity for receiving the latch and a second cavity, the first cavity and the second cavity A limiting ball is respectively disposed in the core of the lock cylinder and disposed at a position of the communication port, and the buckle is respectively disposed at a free end with a groove for engaging the limit ball. The electronic lock of claim 4, wherein the tail cover comprises a tail cover body and a tail cover protrusion, the tail cover protrusion is located away from the metal head cover, the tail cover protrusion and the A tail step is formed between the tail cap bodies. The electronic lock of claim 2, wherein the inner cavity and the outer cavity have a circular cross section, and the metal head cover has a circular cross section. The electronic lock of claim 2, wherein the surface structure of the end surface of the metal head cover is a flat surface, a spherical surface or a concave surface. The electronic lock of claim 2, wherein the electronic lock cylinder comprises a lock cylinder body and a lock cylinder assembly mounted in the lock core body, the end of the lock core body Provided with an electronic lock, the lock core component includes a PCB board adjacent to the electronic lock head, and a spring seat and a slider set away from the PCB board, the spring seat is fixed to the inner wall of the lock core body, The slider set is connected to the spring seat through a built-in spring, and a heat shrinkable metal wire and a positive lead are sequentially disposed between the PCB board and the slider set, and the heat shrinkable metal wire and the positive lead are tensioned The internal spring is in a compressed state. The electronic lock of claim 8, wherein the slider set is divided into a piston head and a limit head in an axial direction, and the outer wall of the piston head is in contact with the inner wall of the lock core body. The head is dumbbell-shaped, the first ball head is connected to the piston head through a step surface, and the second ball head is connected to the first ball head through a low temperature metal column, the piston head, the low temperature metal column and the first ball Each of the heads is provided with a through hole in the axial direction, and the positive lead is connected to the second ball head via the through hole. The electronic lock according to claim 9, wherein the lock core body has a cylindrical shape, and the lock core body is provided with a pin hole at a position close to the low temperature metal column, and the pin hole is disposed in the pin hole. A radially displaced locking pin that is driven by the limit head.