TWM514499U - Electronic lock core - Google Patents

Description

Electronic lock cylinder

This creation belongs to a type of lock, specifically to an electronic lock cylinder.

Today's lock technology has developed electronic lock cylinders that use electricity to operate, and such electronic lock cylinders are commonly used in today's society, such as electronic lock cylinders commonly used as door locks for doors, car locks or safe boxes. lock. The lock cylinder is the most important component in the lock. Most of the action of opening and locking the lock is done through the lock cylinder. In the existing electronic lock, the lock cylinder usually needs to be continuously energized, and the user usually goes through a password recognition process when the lock is unlocked. If the password is verified, the lock is powered or mechanically driven (such as a key unlock). The lock cylinder is displaced to open the lock, otherwise it remains locked. However, the shortcoming of these electronic locks is that, on the one hand, not all locks can meet the requirements of being able to be energized at any time, especially for locks such as disaster relief equipment or emergency equipment, the existing electronic locks cannot meet the requirements for use. Secondly, in the case of password confirmation and key mechanical unlocking, the lock cylinder is exposed to the air for a long time. It is easy for dust, rain and other impurities to enter the lock hole for a long time, resulting in blockage. As a result, even if the password pairing is successful, the electronic device cannot be turned on. lock.

In order to overcome the deficiencies of the prior art, the present invention provides an electronic lock cylinder which does not need continuous power supply and has no exposed keyhole, and has high reliability.

The technical solution adopted by the present invention to solve the technical problem is: an electronic lock cylinder comprising a sleeve-shaped lock body and a front lock core and a rear lock core disposed in the lock body cavity, the front lock core and the rear lock core mutually The card is connected to the inside of the lock body; the inner wall of the lock body is provided with a card slot, and the front lock core is provided with an electrode contact and a printed circuit board (PCB) block, and the electrode contact is embedded Connected to the front end of the front lock cylinder, and the front end of the front lock cylinder is provided with a nip portion matched with an electronic key, and the electrode contact is connected to the printed circuit board block; the rear end of the rear lock core is engaged with the rear end of the front lock cylinder, The other end of the extension body is provided with a through hole. One end of the through hole communicates with the slot of the lock body, and the other end communicates with the blind hole formed by the inner wall of the rear lock core and the common wall of the extension body. The ball hole is locked with a ball lock bar with a lock bar spring, the ball head of the ball head lock bar abuts the card slot, and the rod portion faces the blind hole; the rear lock core further includes a piston and a lever Actuator, tension spring, the piston is disposed in the blind hole, and the lever, the actuator and the tension spring are respectively connected to the printing a road block and the piston, and driving the piston; when not energized, the piston abuts the outlet of the through hole, so that the rod portion of the ball lock bar does not enter the blind hole; when the power is applied, the lever and the actuator The tension spring linkage moves the piston away from the original position, so that the rod portion of the ball head lock rod can enter the blind hole.

Further, one end of the lever is fixed by a lever pin, and the other end thereof is rotatable around the fixed point, and the rotating end of the lever is connected to the piston to drive the piston to move; the actuator is electrically connected to the printed circuit board. And the actuator pulls the lever to rotate the lever as a base point; one end of the tension spring is connected to the piston or the lever, and the elastic restoring force of the tension spring is to be pulled by the actuator And the lever is reset.

As a preferred solution, the actuator is a nickel-titanium alloy wire, the printed circuit board The block is thermally or electrically conductive with the nitinol wire, and the contraction of the nitinol wire causes the lever to rotate at the base of the lever pin.

As a further preferred embodiment, the actuator is a solenoid valve, a piezoelectric linear actuator or an electric motor, and the solenoid valve, the piezoelectric linear actuator or the motor pulls the lever to rotate at a base point of the lever pin.

Further, a copper alloy terminal is connected through the copper alloy terminal to the printed circuit board block, and the copper alloy terminal is soldered to the printed circuit board block by a low melting point solder.

Specifically, the engaging portion of the front lock cylinder that is engaged with the rear lock core is provided with n concave positions, and the engaging portion of the rear lock core and the front lock core is correspondingly provided with n bumps, and the n convex portions A joint line is respectively arranged at the joint between the block and the rear lock core; or the engaging portion of the front lock core and the rear lock core is provided with n bumps, and the rear lock core is engaged with the front lock core. There are n concave positions corresponding to the part, and a fracture line is respectively arranged at the joint of the n convex blocks and the front lock core; n is a natural number.

Further, the lever is a flexible lever.

Specifically, the piston has a hammerhead shape at one end, the hammer head of the piston is placed in the blind hole, and the other end is movably connected to the lever through a piston pin.

Specifically, one end of the tension spring is coupled to a tension spring pin fixed in the front lock cylinder or the rear lock core, thereby fixing one end of the tension spring in the front lock core or the rear lock core.

Further, the extension body is connected to the latch body.

Further, the extension body is connected to a coupling seat, and the extension body is fixedly connected to the coupling seat by a nut.

As another technical solution to solve the technical problem of the present creation, this creation provides one The electronic lock comprises an outer lock body and the electronic lock core, and the outer lock body is fixedly connected with the lock body of the electronic lock core.

Compared with the prior art, it has the following positive effects: 1. The core component of the creation is small and compact, and the linkage effect is good. At the same time, the electronic lock cylinder of the present invention does not store the power, the power source is provided by the electronic key, and the electronic lock core is safe and durable. 2, the creation of the electronic lock core anti-heating anti-smash lock, high security; 3, the creation of the electronic lock core structure is compact, can be made into a variety of sophisticated body shape, can replace a variety of mechanical lock core design.

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

10‧‧‧ cabinet lock

110‧‧‧After body

12‧‧‧ card slot

130‧‧‧ door lock body

14‧‧‧ Identification points

20‧‧‧ front lock cylinder

21‧‧‧Electrode contacts

212‧‧‧electrode insulation sleeve

23‧‧‧electrode snap ring

234‧‧‧Insulation washers

25‧‧‧Printed circuit boards

27‧‧‧Printed circuit board holder

275‧‧‧Low melting point solder

29‧‧‧ Limit pits

30‧‧‧ rear lock cylinder

31‧‧‧Extension

33‧‧‧ ball head lock lever

333‧‧‧Lock spring

34‧‧‧

345‧‧‧Pole pin

35‧‧‧Piston

357‧‧‧Piston pin

36‧‧‧Spring

368‧‧‧Retaining pin

37‧‧‧NiTi alloy wire

372‧‧‧copper alloy terminal

38‧‧‧ linkage seat

39‧‧‧Connecting seat

394‧‧‧ nuts

412‧‧‧ recessed

414‧‧‧Bumps

416‧‧‧Fracture line

50‧‧‧External lock core

60‧‧‧ steel balls

70‧‧‧Lock ring

90‧‧‧Electronic key

93‧‧‧Recognition head

1 is a schematic view showing the structure of Embodiment 1.

2 and 3 are external views of the first embodiment.

4 is a schematic structural view of a side surface of Embodiment 2.

Fig. 5 is a schematic structural view of the front surface of the second embodiment.

Fig. 6 is a cross-sectional view taken along line A-A of Fig. 5;

Fig. 7 corresponds to Fig. 6 and is a schematic structural view of a cross section of the second embodiment.

Fig. 8 is an external view of the second embodiment.

Fig. 9 is an external view of the third embodiment.

Figure 10 is a rear elevational view of Embodiment 3.

Fig. 11 is a cross-sectional view taken along line B-B of Fig. 10;

Figure 12 is an external view of the electronic key of the present invention.

Figure 13 is a schematic diagram of the electronic key unlocking of the present invention.

Fig. 14 and Fig. 15 are structural schematic views of the present invention for preventing external heating from damaging the lock cylinder.

16 and 17 are structural schematic diagrams of the present invention for preventing shackles.

As shown in FIG. 1-3, the electronic lock cylinder of the first embodiment includes a sleeve-like cabinet lock body 10, and a front lock cylinder 20 and a rear lock core 30 disposed in the inner cavity of the cabinet lock body 10. The outer wall of the cabinet lock body 10 is provided with a thread, and the cabinet lock body 10 is fixedly engaged by a locked object such as a cabinet door. The front lock cylinder 20 and the rear lock core 30 are engaged with each other and are inserted into the inner cavity of the cabinet lock body 10, and the front lock cylinder 20 and the rear lock core 30 are rotatable relative to the cabinet lock body 10.

Specifically, the inner wall of the cabinet lock body 10 is provided with a card slot 12, which is a blind slot extending from one end opening of the cabinet lock body 10 toward the other end opening.

The front lock cylinder 20 is a cavity in which an electrode contact 21, an electrode retaining ring 23, a printed circuit board block 25, and a printed circuit board base 27 are disposed. The electrode contact 21 is engaged with the front end of the front lock cylinder 20 to form a lock end face of the electronic lock cylinder. The inner side wall of the front lock core 20 outside the lock end face is provided with a limit recess 29 for use with the electronic key. The identification head 93 of 90 matches the connection and drives the front lock cylinder 20 to rotate. An insulator is disposed between the electrode contact 21 and the front lock cylinder 20 . Specifically, the insulator is an electrode insulating sleeve 212 that is sleeved on the electrode contact 21 . The electrode retaining ring 23 is sleeved with the electrode contact 21 to fix the electrode contact 21. Further, an insulating gasket 234 is interposed between the electrode retaining ring 23 and the front lock cylinder 20. The electrode insulating sleeve 212 and the insulating gasket 234 cooperate to ensure that the current flowing through the electrode contact 21 does not connect to the cabinet lock body 10. The electrode contact 21 is connected to the printed circuit board block 25. The printed circuit board holder 27 is disposed in the inner cavity of the front lock cylinder 20 and holds the printed circuit board block 25. The first micro-processing is arranged in the printed circuit board block 25 The first microprocessor includes a storage module.

The rear lock cylinder 30 is a cavity, one end of which is engaged with the front lock cylinder 20, and the other end of which is provided with the extension body 31. The connection end of the extension body 31 is provided with a stepped through hole, and the large aperture end of the stepped through hole and the cabinet The card slots 12 of the lock body 10 are perpendicularly communicated with each other, and the small aperture ends thereof are vertically communicated with each other, and the inner wall of the lock cylinder 30 and the outer wall of the extension body 31 form a blind hole. The extension body 31 is fixedly connected to the latch body. The rear lock cylinder 30 is provided with a ball lock lever 33, a lever 34, a piston 35, a tension spring 36, and a nitinol wire 37. After the ball lock lever 33 is put on the lock lever spring 333, it is inserted into the stepped through hole of the extension body 31, and the ball head of the ball lock lever 33 abuts against the card slot 12 of the cabinet lock body 10, and the lock lever spring 333 is abutted. The ball head of the ball lock lever and the countertop of the stepped through hole. One end of the piston 35 with the hammer head is placed in the blind hole, and the other end of the piston 35 is movably connected to the rotating end of the shift lever 34 via the piston pin 357, and the hammer head of the piston 35 moves as the piston 35 in the blind hole. The lever 34 is coupled to the piston 35. The rotating end of the lever 34 is movably coupled to the piston 35, and the other end is a base end. The base end of the lever 34 is movably coupled to the rear lock cylinder 30 via the lever pin 345 as a rotational base point of the lever 34. One end of the nickel-titanium alloy wire 37 is provided with a copper alloy terminal 372, and the copper alloy terminal 372 is soldered to the printed circuit board holder 27 by a low melting point solder 275. The other end of the Nitinol wire 37 is connected to one end of the lever 34 below the rotary base point, so that the contraction of the Nitinol wire 37 pulls the lever 34 to rotate clockwise at the base point. One end of the tension spring 36 is fixed to the inner cavity of the front lock cylinder 20 by the tension spring fixing pin 368, and the other end thereof is connected to the middle portion of the shift lever 34. The restoring force of the tension spring 36 pulls the lever 34 to rotate the base point to rotate counterclockwise.

The electronic lock cylinder of the present invention does not need to be energized, and the lock cylinder is in a locked state in a normal state. At this time, since the piston 35 is pinched by the tension spring 36, the hammer head of the piston 35 closes the outlet of the stepped through hole, and the ball lock lever 33 is restricted. In the stepped through hole, and the ball head is caught at the card slot 12 of the cabinet lock body 10, the lock cylinder cannot be rotated, and thus remains in the locked position.

As shown in FIG. 12, the electronic key 90 cooperates with the electronic lock cylinder of the first embodiment, The utility model comprises a key body and a power source and a second micro processing unit disposed in the key body. One end of the key body is provided with an identification head 93 that is mated with the electrode contact 21, and is connected to the second micro processing unit, and is also provided with storage. a module and a second data interaction module for exchanging data with the electronic lock, the end surface of the identification head 93 and the end surface of the electronic lock head are flat, and a side of the identification head 93 is provided with a protrusion. It is mated with the limiting recess 29 of the front lock cylinder 20.

As shown in FIG. 13, based on the above structure and arrangement, the electronic cylinder opening process of Embodiment 1 is divided into the following two steps:

1. Matching the electronic password, the electronic key 90 is docked with the front lock cylinder 20, so that the identification head 93 of the electronic key 90 and the lock end surface of the electronic lock head abut each other, and the power of the electronic key 90 is turned on, then the second micro processing unit The first input module of the front lock cylinder 20 feeds the coded information preset to the memory through the second output module, and the first micro processing unit of the front lock cylinder 20 receives the coded information, and then judges An output module and a second input module send feedback information to the second micro processing unit. In the above process, if the coded information transmitted by the electronic key 90 does not match the coded information in the preset front lock cylinder 20, the power source of the electronic key 90 cannot be connected to the Nitinol wire 37, and the electronic lock cylinder remains locked. If the encoded information transmitted by the electronic key 90 matches the encoded information in the preset front lock cylinder 20, the first microprocessor instructs the current of the electronic key 90 to flow through the printed circuit board block 25 and turns on the Nitinol Silk 37.

Second, the mechanical unlocking, in the previous step, once the Nitinol wire 37 is turned on, the heat generated after the energization causes the temperature to rise and shrink, the contraction action pulls the lever 34, the lever 34 rotates clockwise, the lever 34 pushes the piston 35 deeper into the blind hole, causing the hammer head of the piston 35 to move away from the exit of the stepped through hole of the extension 31, exposing the space. At this time, rotating the electronic key 90 drives the front lock cylinder 20 to rotate, and the front lock cylinder 20 drives the rear lock cylinder 30 that is engaged with it to rotate, and the rear lock cylinder 30 is opposite to the cabinet lock body 10 Rotating, the rod body of the ball lock lever 33 extends toward the blind hole, and the ball lock lever 33 slides away from the card slot 12 of the cabinet lock body 10, thereby lifting up the exposed space of the piston 35 and unlocking.

When the electronic lock cylinder is to be re-locked, the electronic key 90 is rotated and reset, and the ball lock lever 33 is reset to the upper side of the slot 12 of the cabinet lock body 10, and the ball of the ball lock lever 33 is passed by the elastic force of the lock lever spring 333. The head is pressed back into the card slot 12. At this time, the electronic key 90 is pulled away from the electronic lock core, the electronic lock core loses electric energy, the shrinkage of the nickel-titanium alloy wire 37 cannot be maintained, the nickel-titanium alloy wire 37 is restored to the original length, and the tension spring 36 pulls the piston 35 away from the blind hole, and the piston 35 The hammer head recloses the outlet of the stepped through hole, and the electronic lock cylinder resumes the locked state.

Example 2

As shown in FIG. 4-8, the electronic lock cylinder of the embodiment 2 includes a box type padlock body 110, a lock ring 70 connected thereto, and an outer lock core 50 and a front lock core disposed in the inner cavity of the padlock body 110. 20. The rear lock cylinder 30 and the two steel balls 60. The front lock cylinder 20 and the rear lock core 30 are engaged with each other and plugged into the inner cavity of the outer lock core 50. Both the front lock cylinder 20 and the rear lock core 30 are rotatable relative to the outer lock cylinder 50.

Specifically, the outer lock core 50 is fixed in the inner cavity of the padlock body 110 by a fixing pin, and the inner wall of the outer lock core 50 is provided with a card slot 12.

The front lock cylinder 20 is a cavity in which an electrode contact 21, an electrode retaining ring 23, a printed circuit board block 25, and a printed circuit board base 27 are disposed. The electrode contact 21 is engaged with the front end of the front lock cylinder 20 to form a lock end face of the electronic lock cylinder. The inner side wall of the front lock core 20 outside the lock end face is provided with a limit recess 29 for use with the electronic key. The identification head 93 of 90 matches the connection and drives the front lock cylinder 20 to rotate. An insulator is disposed between the electrode contact 21 and the front lock cylinder 20 . Specifically, the insulator is an electrode insulating sleeve 212 that is sleeved on the electrode contact 21 . The electrode retaining ring 23 is sleeved with the electrode contact 21 to fix the electrode contact 21. Further, an insulating gasket 234 is interposed between the electrode retaining ring 23 and the front lock cylinder 20. Electrode The edge sleeve 212 cooperates with the insulating gasket 234 to ensure that the current flowing through the electrode contact 21 does not open the padlock body 110. The electrode contact 21 is connected to the printed circuit board block 25. The printed circuit board holder 27 is disposed in the inner cavity of the front lock cylinder 20 and holds the printed circuit board block 25. The printed circuit board block 25 houses a first microprocessor, and the first microprocessor includes a memory module.

The rear lock cylinder 30 is a cavity, one end of which is engaged with the front lock cylinder 20, and the other end of which is provided with the extension body 31. The connection end of the extension body 31 is provided with a stepped through hole, the large aperture end of the stepped through hole and the padlock The card slots 12 of the body 110 are vertically connected to each other, and the small aperture ends thereof are vertically communicated with each other, and the inner wall of the lock cylinder 30 and the outer wall of the extension body 31 form a blind hole. The other end of the extension body 31 is a linkage seat 38, and a cam is arranged on the linkage seat. The rear lock cylinder 30 is provided with a ball lock lever 33, a lever 34, a piston 35, a tension spring 36, and a nitinol wire 37. After the ball lock lever 33 is put on the lock lever spring 333, it is inserted into the stepped through hole of the extension body 31, and the ball head of the ball lock lever 33 abuts against the card slot 12 of the padlock body 110, and the lock lever spring 333 is pressed against The ball head of the ball lock lever and the countertop of the stepped through hole. One end of the piston 35 with the hammer head is placed in the blind hole, and the other end of the piston 35 is movably connected to the rotating end of the shift lever 34 via the piston pin 357, and the hammer head of the piston 35 moves as the piston 35 in the blind hole. The lever 34 is coupled to the piston 35. The rotating end of the lever 34 is movably coupled to the piston 35, and the other end is a base end. The base end of the lever 34 is movably coupled to the inner cavity of the rear lock cylinder 30 by a lever pin 345 as a rotational base point of the lever 34. One end of the nickel-titanium alloy wire 37 is provided with a copper alloy terminal 372, and the copper alloy terminal 372 is soldered to the printed circuit board holder 27 by a low melting point solder 275. The other end of the Nitinol wire 37 is connected to one end of the lever 34 below the rotary base point, so that the contraction of the Nitinol wire 37 pulls the lever 34 to rotate clockwise at the base point. One end of the tension spring 36 is fixed to the inner cavity of the front lock cylinder 20 by the tension spring fixing pin 368, and the other end thereof is connected to the middle portion of the shift lever 34. The restoring force of the tension spring 36 pulls the lever 34 to rotate the base point to rotate counterclockwise.

The lock ring 70 has an inverted U shape, and two ends are respectively provided with notches, and both ends of the lock ring 70 are inserted. In the padlock body 110, a steel ball 60 is disposed between the notch of the two ends of the lock ring 70 and the linkage seat 38. Steel ball 60 limit lock ring 70.

As shown in FIG. 7 and FIG. 8, FIG. 7 is a locked state of the electronic lock cylinder, and FIG. 8 is an unlocked state of the electronic lock cylinder. The electronic lock cylinder of the present invention does not need to be energized, and the lock cylinder is in a locked state in a normal state. At this time, since the piston 35 is pinched by the tension spring 36, the hammer head of the piston 35 closes the outlet of the stepped through hole, and the ball lock lever 33 is restricted. In the stepped through hole, and the ball head is stuck at the card slot 12 of the padlock body 110, the lock cylinder cannot be rotated, so that the steel ball 60 is limited between the lock ring 70 and the cam of the linkage seat 38, thereby remaining locked. position. Only when the linkage rotates, its cam is removed from the ball 60 and the lock ring 70 can be opened.

As shown in FIG. 12, the electronic key 90 cooperates with the electronic lock cylinder of the second embodiment, and includes a key body and a power source and a second micro processing unit disposed in the key body, and one end of the key body is provided with an electrode contact The head 21 cooperates with the docking identification head 93 and is connected to the second micro processing unit, and is further provided with a storage module and a second data interaction module for exchanging data with the electronic lock, the end surface of the identification head 93 and the electronic lock The end faces of the head are flat, and a side of the identification head 93 is provided with a protrusion that is matched with the limiting recess 29 of the front lock cylinder 20.

As shown in FIG. 13, based on the above structure and arrangement, the electronic cylinder opening process of Embodiment 1 is divided into the following two steps:

1. Matching the electronic password, the electronic key 90 is docked with the front lock cylinder 20, so that the identification head 93 of the electronic key 90 and the end surface of the electronic lock head abut each other, and the power of the electronic key 90 is turned on, then the second micro processing unit passes the first The first output module of the front lock cylinder 20 feeds the coded information preset to the memory, and the first micro processing unit of the front lock cylinder 20 receives the above coded information, and then judges, and passes the first output. The module and the second input module send feedback information to the second Microprocessing unit. In the above process, if the coded information transmitted by the electronic key 90 does not match the coded information in the preset front lock cylinder 20, the power source of the electronic key 90 cannot be connected to the Nitinol wire 37, and the electronic lock cylinder remains locked. If the encoded information transmitted by the electronic key 90 matches the encoded information in the preset front lock cylinder 20, the first microprocessor instructs the current of the electronic key 90 to flow through the printed circuit board block 25 and turns on the Nitinol Silk 37.

Second, the mechanical unlocking, in the previous step, once the Nitinol wire 37 is turned on, the heat generated after the energization causes the temperature to rise and shrink, the contraction action pulls the lever 34, the lever 34 rotates clockwise, the lever 34 pushes the piston 35 deeper into the blind hole, causing the hammer head of the piston 35 to move away from the exit of the stepped through hole of the extension 31. At this time, rotating the electronic key 90 drives the front lock cylinder 20 to rotate, the front lock cylinder 20 drives the rear lock cylinder 30 that is engaged with it, and the rear lock cylinder 30 rotates relative to the outer lock cylinder 50, passing the rod of the ball lock lever 33. The body extends to the blind hole, the ball lock lever 33 slides away from the slot 12 of the padlock body 110, and the linkage seat 38 rotates accordingly, and the cam of the linkage seat 38 moves away. At this time, the cam no longer abuts against the steel ball 60, two The steel ball 60 can be moved toward the linkage seat 38, and the locking end of the lock ring 70 is withdrawn from the padlock body 110 to be unlocked.

When the electronic lock cylinder is to be re-locked, the locking end of the lock ring 70 is buckled into the padlock body 110, the electronic key 90 is rotated and re-set, and the linkage seat 38 is again pressed against the steel ball 60, and the steel ball 60 limits the lock ring 70. The ball lock lever 33 is reset to the upper side of the card slot 12 of the padlock body 110, and the ball end of the ball lock lever 33 is pressed back to the card slot 12 by the elastic force of the lock lever spring 333. At this time, the electronic key 90 is pulled away from the electronic lock core, the electronic lock core loses electric energy, the shrinkage of the nickel-titanium alloy wire 37 cannot be maintained, the nickel-titanium alloy wire 37 is restored to the original length, and the tension spring 36 pulls the piston 35 away from the blind hole, and the piston 35 The hammer head recloses the outlet of the stepped through hole, and the electronic lock cylinder resumes the locked state.

Example 3

As shown in FIG. 9-11, the electronic lock cylinder of Embodiment 3 is substantially the same as the electronic lock cylinder of Embodiment 1, except that: 1) The electronic lock cylinder of Embodiment 3 is mounted on the door panel, and the lock body is not threaded. a door lock body 130, and the door lock body 130 is provided with a fixing pin for fixing the door lock body 130 to the door panel; 2) the extension body 31 of the rear lock cylinder 30 of the embodiment 3 is connected to a coupling seat 39, and The extension 31 is fixedly coupled to the coupling seat 39 by a nut 394.

As can be seen from the above three embodiments, the mechanical actuation of the electronic lock cylinder is ultimately attributed to the temperature rise and contraction action of the Nitinol wire to which the printed circuit board is attached. Therefore, in order to prevent the electronic lock cylinder from being abnormally heated and stolen, the present invention has also made a special design for the electronic lock cylinder. 14 and FIG. 15 are structural schematic diagrams of the present invention for preventing external heating from damaging the lock cylinder, wherein FIG. 14 is a structure inside the lock cylinder under reasonable use, and FIG. 15 is a case where the lock core is broken after being heated by an external heat source. Structure, the unlocking function of the lock cylinder is invalid. The copper alloy terminal 372 is soldered to the printed circuit board holder 27 by a low melting point solder 275. When the front lock cylinder 20 is heated by an external heat source, the low melting point solder 275 is first melted before the nickel titanium alloy wire 37 is shrunk, and the nickel titanium alloy wire is melted. When the 37 is contracted, the two copper alloy terminals 372 can only be pulled, as shown in FIG. 15, without pulling the lever 34, and the electronic lock cylinder is still in the locked state.

Moreover, in order to avoid shackles, this creation also made a special design for the electronic lock cylinder. As shown in FIGS. 16 and 17, the front lock cylinder 20 and the rear lock core 30 are engaged with each other. Specifically, the engaging surface of the front lock cylinder 20 is provided with two recessed positions 412, and correspondingly, the engaging surface of the rear lock cylinder 30 is provided. There are two bumps 414, and a fracture line 416 is provided at the junction of the bump 414 and the rear lock core 30. When the electronic key 90 that is not matched by the electronic password is used, the front lock cylinder 20 and the rear lock core 30 are simply rotated by brute force, and the two bumps 414 collapse at the fracture line 416 before the rear lock cylinder 30 rotates. The lock cylinder 20 loses the snap-fit relationship with the rear lock cylinder 30, and the rear lock cylinder 30 remains locked. Or those skilled in the art can design through the technology, The recess 412 is interchanged with the bump 414 according to conventional means in the art, and the recess 412 is disposed on the rear lock core 30. The bump 414 is disposed on the front lock cylinder 20 or changes without changing the matching. The shape and number of the recess 412 and the bump 414.

Further, the lever 34 of the present embodiment is a flexible lever. When the rigid lever 34 is used, the nitinol wire 37 contracts to pull the rigid lever 34, and the piston 35 is stuck or blocked on the blind hole and cannot be smoothly inserted, and the rigid lever 34 is easily broken. With the flexible lever 34, the nitinol wire 37 shrinks and pulls the flexible lever 34, and the piston 35 is stuck or blocked on the blind hole and cannot be inserted smoothly, which only causes the deformation of the flexible lever 34 without breaking. .

Further, on the end face of the lock body of the electronic lock cylinder, the inner side wall of the lock body is provided with a concave identification point 14 which coincides with the limit pit 29 of the front lock cylinder 20 in the locked state for marking The position of the electronic key 90 is reset. The identification point 14 of the lock body of the electronic lock cylinder is a fixed point and does not rotate with the rotation of the electronic key 90. When the electronic lock cylinder needs to be re-locked, the electronic key 90 rotates the front lock cylinder 20 to the position where the identification point 14 coincides with the limit recess 29 of the front lock cylinder 20, and then the ball lock lever falls into the card slot 12 again. .

Further, it can be seen from the above three embodiments that the extended body 31 of the present invention can be adjusted correspondingly according to different locking structures, and those skilled in the art can replace the extension of other structures according to the technical principle of the present invention and the prior art. Therefore, the extension to be protected by the present creation is not limited to the structural shape described in the above three embodiments.

Further, in another preferred embodiment, the actuator is replaced with a nickel-titanium alloy wire 37 which can be rotated as needed by pulling the lever 34 to rotate the base point. Preferably, the actuator is a solenoid valve. Piezoelectric linear actuator or motor.

Compared with the prior art, the components in the lock cylinder of the electronic lock cylinder of the present invention are very Compact, with few moving parts and very modular. In addition, the electronic lock cylinder of the present invention has no power source, and the power source is provided by an electronic key. When the electronic key is inserted, the power source is charged into the electronic lock cylinder. Therefore, the electronic lock cylinder does not need to be charged periodically, nor is it self-powered, ensuring the normal use of the electronic lock cylinder and durability.

The present invention is not limited to the above-described embodiments, and if the various changes or modifications of the present invention do not depart from the spirit and scope of the present invention, if such changes and modifications fall within the scope of the claims and the equivalents of the present invention, the present invention also intends These changes and variants are included.

10‧‧‧ cabinet lock

12‧‧‧ card slot

14‧‧‧ Identification points

20‧‧‧ front lock cylinder

21‧‧‧Electrode contacts

212‧‧‧electrode insulation sleeve

23‧‧‧electrode snap ring

234‧‧‧Insulation washers

25‧‧‧Printed circuit boards

27‧‧‧Printed circuit board holder

29‧‧‧ Limit pits

30‧‧‧ rear lock cylinder

31‧‧‧Extension

33‧‧‧ ball head lock lever

333‧‧‧Lock spring

34‧‧‧

345‧‧‧Pole pin

35‧‧‧Piston

357‧‧‧Piston pin

36‧‧‧Spring

368‧‧‧Retaining pin

37‧‧‧NiTi alloy wire

372‧‧‧copper alloy terminal

Claims (8)

An electronic lock cylinder, comprising: a sleeve-shaped lock body and a front lock core and a rear lock core disposed in the lock body cavity; the front lock core and the rear lock core are coupled to each other and can be in the lock body Rotating; the inner wall of the lock body is provided with a card slot, and the front lock core is provided with an electrode contact and a printed circuit board (PCB) block, and the electrode contact is engaged with the front end of the front lock cylinder. The front end of the front lock cylinder is provided with a nip portion matched with an electronic key, and the electrode contact is connected to the printed circuit board block; the rear end of the rear lock core is engaged with the rear end of the front lock cylinder, and the other end thereof is provided with an extension body. The connecting end of the extending body is provided with a through hole, one end of the through hole communicates with the slot of the lock body, and the other end of the through hole communicates with the blind hole formed by the inner wall of the rear lock core and the common wall of the outer body; a ball lock lever of the lock lever spring, the ball head of the ball lock lever abuts the card slot, and the rod portion faces the blind hole; the rear lock core further includes a piston and a lever, an actuator, and a tension spring, a piston plug is disposed in the blind hole, and the lever, the actuator and the tension spring respectively connect the printed circuit board block and the piston, and drive the Plug movement; when non-energized, the piston abuts the outlet of the through hole, so that the rod portion of the ball lock lever does not enter the blind hole; when the power is applied, the lever, the actuator and the tension spring move the piston away In situ, the rod portion of the ball lock bar can enter the blind hole; wherein one end of the lever is fixed by the lever pin so that the other end can rotate around the fixed point, the rotation end of the lever and the piston Connecting, driving the piston to move; the actuator is electrically connected to the printed circuit board block, and the actuator pulls the lever to rotate the lever with the lever pin as a base point; one end of the tension spring is connected to the piston or dial The rod, the elastic restoring force of the tension spring will be reset by the piston and the lever that are pulled by the actuator. The electronic lock cylinder according to claim 1, wherein the actuator is a nickel-titanium alloy wire, and the printed circuit board block is thermally or electrically conductive with the nickel-titanium alloy wire, and the shrinkage of the nickel-titanium alloy wire is The lever is rotated by the lever pin as a base point. An electronic lock cylinder according to claim 1, wherein the actuator is a solenoid valve, a piezoelectric linear actuator or an electric motor, and the solenoid valve, the piezoelectric linear actuator or the motor pulls the lever to the lever The pin rotates at the base point. The electronic lock cylinder of claim 2, further comprising a copper alloy terminal connected to the printed circuit board block through the copper alloy terminal, the copper alloy terminal being soldered to the printed circuit board block by a low melting point solder . The electronic lock cylinder according to claim 1, wherein the engaging portion of the front lock cylinder that is engaged with the rear lock core is provided with n concave positions, and the rear lock core is correspondingly connected with the front lock core. n bumps, and a joint line is respectively arranged at the junction of the n bumps and the rear lock core; or the engaging portion of the front lock core and the rear lock core is provided with n bumps, and thereafter The engaging portion of the lock cylinder and the front lock cylinder is correspondingly provided with n concave positions, and a joint line is respectively arranged at the joint between the n convex blocks and the front lock core; n is a natural number. The electronic lock cylinder of claim 1, wherein the lever is a flexible lever. The electronic lock cylinder according to claim 1, wherein the piston is in the shape of a hammer end, the hammer head of the piston is placed in the blind hole, and the other end of the piston is movably connected to the lever through a piston pin. The electronic lock cylinder according to claim 1, wherein one end of the tension spring is connected with a tension spring pin fixed in the front lock cylinder or the rear lock core, thereby fixing one end of the tension spring to the front lock cylinder or the rear lock. Inside the core.