Electronic lock with emergency unlocking function

Abstract

The electronic lock with the emergency unlocking function comprises a lock shell, a lock sleeve, a lock cylinder, a transmission assembly, a key, a spring bolt and a rotating shaft, and the transmission assembly comprises a first transmission piece and a second transmission piece; the transmission assembly further comprises a clutch gear, a rotating block and a gear, the rotating shaft is sleeved with the rotating block, the clutch gear is rotationally installed on the rotating block, the gear meshed with the clutch gear is fixedly arranged on the rotating shaft, the gear is in transmission connection with the first transmission piece, a limiting block is fixedly arranged in the lock shell, and the rotating block is in transmission connection with the first transmission piece after abutting against any end of the limiting block. The clutch gear is in transmission connection with the second transmission part. Through the arrangement of the clutch gear, the rotating block and the gear, in the emergency unlocking process, the clutch gear pops up and does not drive the first transmission part to continue transmission, so that the whole emergency unlocking process is small in resistance and convenient to execute.

Description

Technical Field

[0001] The present invention relates to the technical field of locks, and in particular to an electronic lock with an emergency unlocking function. Background Art

[0002] Generally, safes and safe deposit boxes include double insurance of combination locks and mechanical locks. The door can only be opened if the combination locks and mechanical locks are unlocked at the same time. In order to prevent the door from being unable to be opened when the combination lock fails, an emergency unlocking function is generally set on the combination lock.

[0003] For example, the electric bolt lock for safes with the Chinese invention patent publication number CN111764762B realizes the locking cylinder and tongue by driving the bolt head with a motor, and also has an emergency unlocking function. However, such a structure still has the following significant defects:

[0004] 1. When the motor or circuit fails, due to the small inclination angle of the worm, a large resistance will be generated when pulling the emergency unlocking piece, which makes the emergency unlocking process laborious and difficult to execute, and the internal part of the password lock is easily damaged;

[0005] 2. Nowadays, criminals usually use more clever gadgets to pry open the lock on the safe through the keyhole and then commit theft. However, the lock core often does not have a secondary locking function, which gives criminals an opportunity to take advantage. Summary of the invention

[0006] The present invention aims to solve one of the technical problems existing in the prior art.

[0007] The present application provides an electronic lock with an emergency unlocking function, comprising a lock shell, a lock sleeve, a lock core, a transmission assembly, a key, a lock tongue and a rotating shaft, wherein the transmission assembly comprises a first transmission member and a second transmission member; the transmission assembly also comprises a clutch gear, a rotating block and a gear, a rotating block is sleeved on the rotating shaft, a clutch gear is rotatably mounted on the rotating block, a gear meshing with the clutch gear is fixedly provided on the rotating shaft, the gear is transmission-connected to the first transmission member, a limit block is fixedly provided in the lock shell, and after any end of the rotating block abuts against the limit block, the clutch gear is transmission-connected to the second transmission member.

[0008] Furthermore, the second transmission member includes a transmission block, a meshing first transmission gear and a meshing second transmission gear, a tooth block is provided on the transmission block, the tooth block meshes with the second transmission gear, an L-shaped groove is provided on the lock tongue, and an eccentric cylinder is provided at the bottom end of the transmission block to slide with the L-shaped groove;

[0009] Among them, after the rotating block abuts against any end of the limiting block, the clutch gear meshes with the No. 1 transmission gear.

[0010] Furthermore, a lock core is rotatably mounted on the inner end of the lock sleeve, and a transmission block is rotatably mounted on the outer end. A plug-in hole is provided at the bottom end of the transmission block. After the key is inserted into the lock core, the bottom end of the key will be plugged into the plug-in hole.

[0011] Furthermore, when the lock tongue is fully extended, the center of the eccentric cylinder is located on the symmetry axis of the lock tongue.

[0012] Furthermore, the rotating shaft, the first transmission member, the second transmission member and the lock tongue are located on the same side of the lock core.

[0013] Furthermore, a limiting groove is arranged on the lock sleeve, and a rotation limiting block which is slidably matched with the limiting groove is arranged on the peripheral wall of the lock core.

[0014] Furthermore, a sliding groove and a movable cavity are provided in the lock core, a locking bolt is slidably installed in the sliding groove, a pair of limiting holes are provided on the locking bolt, a pair of locking blocks are rotatably installed in the movable cavity, a convex block inserted in the limiting hole is provided on the locking block, and the pair of locking blocks are abutted on both sides of the locking bolt through a rubber ring;

[0015] Among them, a locking part and a trigger part are floatingly installed in the lock core, and an anti-theft hole is provided on the lock sleeve. Excessive turning of the locking part will push the trigger part, release the limit of the lock bolt by a pair of protrusions, and the lock bolt can be partially pushed into the anti-theft hole through a spring.

[0016] Furthermore, the trigger member includes a pushing block and a trapezoidal block, a pair of inclined surfaces on the trapezoidal block respectively abut against the locking block, and the trapezoidal block and the locking member are fixedly connected through the pushing block;

[0017] The sliding of the trapezoidal block can cause a pair of locking blocks to rotate, and a pair of protrusions can slide out of the corresponding limiting holes.

[0018] Furthermore, an installation cavity connected to the anti-theft hole is provided in the lock core, a right-angled triangle block is floatingly installed in the installation cavity, the inclined surface of the right-angled triangle block faces upward, and a socket is provided on the lock bolt, and the right-angled triangle block can be plugged into the socket.

[0019] The beneficial effects of the present invention are as follows:

[0020] 1. Through the setting of the clutch gear, rotating block and gear, during the emergency unlocking process, the clutch gear will pop out and will not drive the No. 1 transmission part to continue to transmit, so that the entire emergency unlocking process is subject to less resistance and is easy to execute. By setting the position of vulnerable parts such as the rotating shaft, it can effectively avoid damage to them caused by external forces, greatly improving their service life;

[0021] 2. Through the setting of the trigger, lock bolt, limit block, protrusion, rubber ring, right-angle triangle block and jack, when the locking piece is repeatedly turned, the lock core will automatically lock, thereby improving the safety performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the structure of an electronic lock with an emergency unlocking function in an embodiment of the present application;

[0023] Figure 2 This is a schematic diagram of the internal structure of an electronic lock with an emergency unlocking function in an embodiment of the present application;

[0024] Figure 3 It is a schematic diagram of the structure of the clutch gear, gear, rotating block and corresponding rotating shaft in the embodiment of the present application;

[0025] Figure 4 This is a schematic diagram of the internal structure of the lock housing in the embodiment of the present application;

[0026] Figure 5 This is a schematic diagram of the structure of the lock tongue and the transmission block in the embodiment of the present application;

[0027] Figure 6 This is a schematic diagram of the structure of the key and the transmission block in the embodiment of the present application;

[0028] Figure 7 This is a schematic diagram of the structure of the key, lock core, lock sleeve and transmission block in the embodiment of the present application;

[0029] Figure 8 for Figure 7 Schematic diagram of the cross-sectional structure along the AA direction;

[0030] Fig. 9 for Figure 7 Schematic diagram of the cross-sectional structure along the BB direction;

[0031] Fig.10 for Fig. 9 Schematic diagram of the enlarged structure at D in the middle;

[0032] Fig.11 for Figure 7 Schematic diagram of the cross-sectional structure along the CC direction;

[0033] Fig.12 for Fig.11 Schematic diagram of the enlarged structure at E in the middle.

[0034] Reference numerals

[0035] 1-lock housing, 2-lock sleeve, 21-limiting groove, 3-lock core, 31-rotation limiting block, 4-transmission assembly, 41-transmission member No. 1, 42-transmission member No. 2, 421-transmission block, 422-transmission gear No. 1, 423-transmission gear No. 2, 424-tooth block, 425-eccentric cylinder, 426-plug hole, 431-clutch gear, 432-rotation block, 433-gear, 5- Key, 6-lock tongue, 61-L-shaped slot, 7-limit block, 81-sliding slot, 82-movable cavity, 83-lock bolt, 84-limit hole, 85-locking block, 86-bump, 87-rubber ring, 88-spring, 89-anti-theft hole, 9-locking piece, 10-trigger piece, 101-pushing block, 102-trapezoidal block, 111-installation cavity, 112-right triangle block, 113-jack. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0037] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0038] In the following, in conjunction with the accompanying drawings, an electronic lock with an emergency unlocking function provided by an embodiment of the present application is described in detail through specific embodiments and application scenarios.

[0039] Embodiment 1:

[0040] like Figures 1 to 8As shown, the embodiment of the present application provides an electronic lock with an emergency unlocking function, including a lock shell 1, a lock sleeve 2, a lock core 3, a transmission assembly 4, a key 5, a lock tongue 6 and a rotating shaft, the transmission assembly 4 includes a No. 1 transmission member 41 and a No. 2 transmission member 42; the transmission assembly 4 also includes a clutch gear 431, a rotating block 432 and a gear 433, a rotating block 432 is sleeved on the rotating shaft, and the clutch gear 431 is rotatably mounted on the rotating block 432, the rotating shaft is fixedly provided with a gear 433 meshing with the clutch gear 431, the gear 433 is transmission-connected to the No. 1 transmission member 41, a limit block 7 is fixedly provided in the lock shell 1, after the rotating block 432 abuts against any end of the limit block 7, the clutch gear 431 is transmission-connected to the No. 2 transmission member 42.

[0041] Furthermore, the second transmission member 42 includes a transmission block 421, a meshing number one transmission gear 422 and a number two transmission gear 423, the transmission block 421 is provided with a tooth block 424, the tooth block 424 is meshed with the number two transmission gear 423, the lock tongue 6 is provided with an L-shaped groove 61, and the bottom end of the transmission block 421 is provided with an eccentric cylinder 425 that slides with the L-shaped groove 61; wherein, after the rotating block 432 abuts against any end of the limit block 7, the clutch gear 431 is meshed with the number one transmission gear 422.

[0042] Furthermore, a lock core 3 is rotatably mounted on the inner end of the lock sleeve 2 , and a transmission block 421 is rotatably mounted on the outer end. An insertion hole 426 is provided at the bottom end of the transmission block 421 . After the key 5 is inserted into the lock core 3 , the bottom end of the key 5 will be inserted into the insertion hole 426 .

[0043] Furthermore, when the locking tongue 6 is fully extended, the center of the eccentric cylinder 425 is located on the symmetry axis of the locking tongue 6 .

[0044] Furthermore, the rotating shaft, the first transmission member 41 , the second transmission member 42 and the lock tongue 6 are located on the same side of the lock core 3 .

[0045] Furthermore, a limiting groove 21 is provided on the lock sleeve 2 , and a rotation limiting block 31 which is slidably matched with the limiting groove 21 is provided on the peripheral wall of the lock core 3 .

[0046] In this embodiment of the present application, due to the adoption of the above-mentioned structure, a motor and a lock sleeve 2 are fixedly installed in the lock shell 1. When the safe needs to be unlocked, the fingerprint or password is matched, the motor is started, and the gear 433 and the rotating block 432 are driven to rotate counterclockwise through the No. 1 transmission member 41, until the rotating block 432 abuts against the limit block 7, and the rotating block 432 no longer rotates. The counterclockwise rotation of the gear 433 will then drive the clutch gear 431 to rotate clockwise. Since the rotating block 432 abuts against any end of the limit block 7, the clutch gear 431 is meshed with the No. 1 transmission gear 422. Therefore, the clockwise rotation of the clutch gear 431 drives the No. 1 transmission gear 422 to rotate counterclockwise, and the counterclockwise rotation of the No. 1 transmission gear 422 drives the No. 2 transmission gear 423 to rotate clockwise, thereby driving the transmission block 42 and the eccentric cylinder 425 to rotate counterclockwise. The counterclockwise rotation of the eccentric cylinder 425 will push the lock tongue 6 to slide and retract it, and then the safe is unlocked by unlocking the mechanical lock;

[0047] The first transmission member 41 is a worm and a worm wheel. The motor is provided with a worm, the worm and the worm wheel are meshed and connected, and the worm wheel is meshed and connected with the gear 433;

[0048] When it is necessary to lock the safe again, the door on it is closed, the motor is started, and the gear 433 and the rotating block 432 are driven to rotate clockwise through the No. 1 transmission member 41 until the rotating block 432 abuts against the other end of the limit block 7, and the rotating block 432 will not continue to rotate. The clockwise rotation of the gear 433 will then drive the clutch gear 431 to rotate counterclockwise. Since the clutch gear 431 is meshed with the No. 1 transmission gear 422 after the rotating block 432 abuts against any end of the limit block 7, the clutch gear 431 is engaged with the No. 1 transmission gear 422. Therefore, the counterclockwise rotation of the clutch gear 431 drives the No. 1 transmission gear 422 to rotate clockwise, and the clockwise rotation of the No. 1 transmission gear 422 drives the No. 2 transmission gear 423 to rotate counterclockwise, thereby driving the transmission block 42 and the eccentric cylinder 425 to rotate clockwise. The clockwise rotation of the eccentric cylinder 425 will push the lock tongue 6 to slide and make it extend again, and then the mechanical lock is locked, and the safe is locked;

[0049] After the safe is locked, the motor drives the rotating block 432 to rotate through the first transmission member 41, so that the rotating block 432 is reset;

[0050] When the motor or circuit has a problem, the key 5 is inserted into the lock cylinder 3 and rotated counterclockwise. Since the bottom end of the lock cylinder 3 is inserted into the insertion hole 426, the counterclockwise rotation of the lock cylinder 3 drives the transmission block 42 and the eccentric cylinder 425 to rotate counterclockwise. The counterclockwise rotation of the eccentric cylinder 425 pushes the lock tongue 6 to slide and retract it.

[0051] When the lock cylinder 3 rotates counterclockwise to drive the transmission block 42 to rotate counterclockwise, the transmission block 42 will drive the second transmission gear 423 to rotate clockwise, the second transmission gear 423 rotates clockwise to drive the first transmission gear 422 to rotate counterclockwise, the first transmission gear 422 rotates counterclockwise to drive the clutch gear 431 to rotate clockwise, the clutch gear 431 rotates clockwise to drive the gear and the rotating block 432 to rotate counterclockwise, so that the clutch gear 431 pops out and will not drive the first transmission member to continue to transmit, so that the whole emergency unlocking process is subject to less resistance and is easy to execute;

[0052] When the lock tongue 6 is fully extended, the center of the eccentric cylinder 425 is located on the symmetry axis of the lock tongue 6, so that when the lock tongue 6 is pushed, the eccentric shaft will not be driven to rotate, and the safety performance is better;

[0053] The motor, the rotating shaft, the first transmission member 41, the second transmission member 42 and the lock tongue 6 are located on the same side of the lock core 3. When pressure is applied to the lock tongue 6, the pressure will not act on the easily damaged parts such as the rotating shaft, which can effectively prevent them from being damaged;

[0054] The lock sleeve 2 is provided with a limit groove 21, and the peripheral wall of the lock core 3 is provided with a rotation limit block 31 that slidably cooperates with the limit groove 21. The limit groove 21 cooperates with the limit block 731 to limit the rotation angle of the lock core 3 to prevent the user from turning too far.

[0055] Embodiment 2:

[0056] like Figures 7 to 12 As shown, in this embodiment, in addition to the structural features of the aforementioned embodiments, a sliding groove 81 and an active cavity 82 are provided in the lock core 3, a locking bolt 83 is slidably installed in the sliding groove 81, a pair of limiting holes 84 are provided on the locking bolt 83, a pair of locking blocks 85 are rotatably installed in the active cavity 82, the locking blocks 85 are provided with protrusions 86 inserted into the limiting holes 84, and the pair of locking blocks 85 abut against the two sides of the locking bolt 83 through rubber rings 87; wherein, a locking member 9 and a trigger member 10 are floatingly installed in the lock core 3, and an anti-theft hole 89 is provided on the lock sleeve 2, excessively turning the locking member 9 will push the trigger member 10, release the limiting position of the pair of protrusions 86 on the locking bolt 83, and the locking bolt 83 can be partially pushed into the anti-theft hole 89 by the spring 88.

[0057] Furthermore, the trigger member 10 includes a pushing block 101 and a trapezoidal block 102, a pair of inclined surfaces on the trapezoidal block 102 respectively abut against the locking block 85, and the trapezoidal block 102 and the locking member 9 are fixedly connected through the pushing block 101; wherein, the sliding of the trapezoidal block 102 can cause the pair of locking blocks 85 to rotate, and the pair of protrusions 86 slide out of the corresponding limiting holes 84.

[0058] Furthermore, an installation cavity 111 connected to the anti-theft hole 89 is provided in the lock core 3, and a right-angled triangle block 112 is floatingly installed in the installation cavity 111, with the inclined surface of the right-angled triangle block 112 facing upward. A socket 113 is provided on the lock bolt 83, and the right-angled triangle block 112 can be plugged into the socket 113.

[0059] In this embodiment of the present application, due to the adoption of the above-mentioned structure, when criminals pry the lock on the safe, they usually use a clever little tool to move the locking pieces 9 in the lock core 3 back and forth to achieve the purpose of unlocking. In the process of repeatedly moving the locking pieces 9, the pushing block 101 and the trapezoidal block 102 are pushed to slide in the direction of the lock bolt 83. Since a pair of inclined surfaces on the trapezoidal block 102 are respectively in contact with the locking blocks 85, the trapezoidal block 102 pushes the pair of locking blocks 85 to rotate and overcomes the elastic force of the rubber ring 87. At this time, a pair of protrusions 86 slide out of the corresponding limiting holes 84, and then the lock bolt 83 is partially pushed into the anti-theft hole 89 by the spring 88, thereby fixing the position of the lock core 3 in the lock sleeve 2, realizing the automatic locking of the lock core 3, and improving the safety performance;

[0060] When the lock bolt 83 is partially pushed into the anti-theft hole 89, the lock bolt 83 will push the right-angled triangle block 112 to completely slide into the installation cavity 111. When the insertion hole 113 is connected to the installation cavity 111, the right-angled triangle block 112 is inserted into the insertion hole 113 under the action of the corresponding spring. Since the inclined surface of the right-angled triangle block 112 faces upward, the lock bolt 83 is not easy to slide out after being partially pushed into the anti-theft hole 89.

[0061] When the key 5 is normally used to unlock the lock, the key 5 pushes the locking member 9 to slide to a small extent, and the trapezoidal block 102 cannot make the pair of protrusions 86 slide out of the corresponding limiting holes 84. When the criminals use tools to move the locking members 9 in the lock core 3 back and forth, the locking members 9 slide to a large extent, and the trapezoidal block 102 can make the pair of protrusions 86 slide out of the corresponding limiting holes 84.

[0062] After the lock core 3 is locked, the safe can send a text message to the user's mobile phone through a set program, which is convenient for the user to report an alarm. After the lock core 3 is locked, it needs to be replaced by a professional to avoid the user being unable to intuitively discover the damage caused by criminals to other structures in the lock, thereby affecting the subsequent anti-theft performance.

[0063] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0064] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. An electronic lock with an emergency unlocking function, comprising a lock housing, a lock sleeve, a lock core, a transmission assembly, a key, a lock tongue and a rotating shaft, wherein the transmission assembly comprises a first transmission member and a second transmission member, and is characterized in that: The transmission assembly also includes a clutch gear, a rotating block and a gear. The rotating block is sleeved on the rotating shaft, and the clutch gear is rotatably installed on the rotating block. The rotating shaft is fixedly provided with a gear meshing with the clutch gear. The gear is transmission connected to the No. 1 transmission member. A limit block is fixed in the lock housing. After any end of the rotating block abuts against the limit block, the clutch gear is transmission connected to the No. 2 transmission member.

2. An electronic lock with emergency unlocking function according to claim 1, characterized in that: The second transmission member includes a transmission block, a meshing first transmission gear and a second transmission gear, a tooth block is provided on the transmission block, the tooth block meshes with the second transmission gear, an L-shaped groove is provided on the lock tongue, and an eccentric cylinder is provided at the bottom end of the transmission block to slide with the L-shaped groove; Among them, after the rotating block abuts against any end of the limiting block, the clutch gear meshes with the No. 1 transmission gear.

3. An electronic lock with emergency unlocking function according to claim 2, characterized in that: A lock core is rotatably mounted on the inner end of the lock sleeve, and a transmission block is rotatably mounted on the outer end. A plug-in hole is arranged at the bottom end of the transmission block. After the key is inserted into the lock core, the bottom end of the key will be plugged into the plug-in hole.

4. An electronic lock with emergency unlocking function according to claim 2, characterized in that: When the lock tongue is fully extended, the center of the eccentric cylinder is located on the symmetry axis of the lock tongue.

5. An electronic lock with emergency unlocking function according to claim 1, characterized in that: The rotating shaft, the first transmission member, the second transmission member and the lock tongue are located on the same side of the lock core.

6. An electronic lock with emergency unlocking function according to claim 1, characterized in that: A limiting groove is arranged on the lock sleeve, and a rotation limiting block which is slidably matched with the limiting groove is arranged on the peripheral wall of the lock core.

7. An electronic lock with emergency unlocking function according to claim 1, characterized in that: A sliding groove and a movable cavity are provided in the lock core, a locking bolt is slidably installed in the sliding groove, a pair of limiting holes are provided on the locking bolt, a pair of locking blocks are rotatably installed in the movable cavity, a convex block inserted in the limiting hole is provided on the locking block, and the pair of locking blocks are abutted on both sides of the locking bolt through a rubber ring; Among them, a locking part and a trigger part are floatingly installed in the lock core, and an anti-theft hole is provided on the lock sleeve. Excessive turning of the locking part will push the trigger part, release the limit of the lock bolt by a pair of protrusions, and the lock bolt can be partially pushed into the anti-theft hole through a spring.

8. An electronic lock with emergency unlocking function according to claim 7, characterized in that: The trigger member includes a pushing block and a trapezoidal block, a pair of inclined surfaces on the trapezoidal block abut against the locking block respectively, and the trapezoidal block and the locking member are fixedly connected through the pushing block; The sliding of the trapezoidal block can cause a pair of locking blocks to rotate, and a pair of protrusions can slide out of the corresponding limiting holes.

9. An electronic lock with emergency unlocking function according to claim 7, characterized in that: The lock core is provided with an installation cavity connected with the anti-theft hole, a right-angled triangle block is floatingly installed in the installation cavity, the inclined surface of the right-angled triangle block faces upward, and a plug hole is provided on the lock bolt, and the right-angled triangle block can be plugged into the plug hole.

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