Electronic cabinet lock

Abstract

The present invention relates to an electronic cabinet lock, which comprises a lock housing, a handle and an electric control locking device. An auxiliary unlocking operation mechanism and an unlocking member driven by the auxiliary unlocking operation mechanism are provided on the handle. The electric control locking device includes a self-holding electromagnet, and the iron core of the self-holding electromagnet has a locking end for locking / unlocking the handle. An anti-blocking surface and an unlocking linkage member corresponding to and cooperating with the locking end are provided in the lock housing. The unlocking member is at a position where it pushes the unlocking linkage member to release the locking of the locking end on the handle, and the unlocking member is at a position corresponding to the anti-blocking surface, so as to form a stop cooperation between the unlocking member and the anti-blocking surface in the opening direction of the handle. It has the advantages of reasonable structural design and good anti-prying performance.

Description

Technical Field

[0001] The present invention relates to the technical field of locks, specifically an electronic cabinet lock. Background Art

[0002] Traditional outdoor cabinets are often only equipped with mechanical cabinet locks, which cannot meet the requirements of access control management after informatization. Therefore, a large number of electronic cabinet locks have been developed and used. In order to improve the anti-theft performance of electronic cabinet locks, it is required that the electronic cabinet locks can achieve remote door opening. The mechanical key can only be used to open the door when the access control system fails, such as power failure, network interruption, equipment failure, etc., to avoid the risk that the mechanical key is easily copied and difficult to manage in daily life. For example, in the patent document "An Electronic Cabinet Lock and Its Control Method" disclosed in Chinese Patent No. CN201610043462.0, by utilizing the characteristics of a self-holding electromagnet and cooperating with an unlocking member (a clamping plate in the document) in the mechanical unlocking structure, the electronic lock has the functions of automatic unlocking in daily life and the key can only be opened when the lock fails. However, the core of the self-holding electromagnet of this cabinet lock (a bearing in the document) is directly interlocked and cooperated with the unlocking member, resulting in unreasonable structural design and insufficient anti-prying performance. Summary of the Invention

[0003] Object of the Invention: To overcome the defects existing in the prior art, the present invention provides an electronic cabinet lock with reasonable structural design and good anti-prying performance.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] An electronic cabinet lock includes a lock shell and a handle movably arranged on the lock shell. An electric control locking device for locking the handle is arranged in the lock shell. An auxiliary unlocking operation mechanism and an unlocking member driven by the auxiliary unlocking operation mechanism are arranged on the handle. The electric control locking device includes a self-holding electromagnet. The core of the self-holding electromagnet has a locking end for locking / unlocking the handle. It is characterized in that: a blocking surface and an unlocking linkage member corresponding to the locking end are arranged in the lock shell. When the unlocking member pushes the unlocking linkage member to release the locking of the locking end on the handle, the unlocking member is located at the corresponding position of the blocking surface, thereby forming a stop cooperation between the unlocking member and the blocking surface in the opening direction of the handle.

[0006] When the handle is unlocked, the unlocking member is released from the locking mechanism and the handle is locked. The locking end of the self-holding electromagnet cooperates with the unlocking part through the unlocking linkage part to separate the locking end and the unlocking part in space. When the unlocking part releases the locking action of the locking end on the handle, the unlocking part itself needs to enter the blocking surface position to lock the handle, thereby improving the safety and reliability of the lock and improving the anti-pry performance.

[0007] Preferably, a toggle block is provided on the unlocking linkage, and the locking end has a linkage protrusion that cooperates with the toggle block to push, and the unlocking linkage has an unlocking position and a closing position along the movable direction. When the unlocking member pushes the unlocking linkage to the unlocking position, the toggle block pushes the linkage protrusion to drive the locking end to release the handle lock, and the unlocking linkage is equipped with a reset mechanism that provides a reset driving force for the unlocking linkage to move from the unlocking position to the closed position.

[0008] By adopting the above technical solution, the unlocking linkage and the locking end are linked by pushing cooperation. The unlocking linkage is reset from the unlocking position to the closed position by the reset mechanism. The locking end can be disengaged from the unlocking linkage and electrically driven by the electric-controlled locking device to complete the locking and unlocking actions, thereby reducing power consumption.

[0009] Preferably, the unlocking linkage is also provided with a reset block, the toggle block and the reset block are spaced apart along the extension and contraction direction of the iron core to form a movable gap, the linkage protrusion extends into the movable gap, the unlocking linkage is limited in the closed position by the handle stop in a state of being engaged with the lock shell, and when the unlocking linkage is in the closed position, the movable gap covers the movable stroke of the locking / unlocking action of the locking end, and the unlocking linkage also has an open position driven by the reset driving force of the reset mechanism, and the handle in the open state on the lock shell releases the limitation on the unlocking linkage, thereby constituting that the unlocking linkage moves to the open position through the reset mechanism, and the unlocking linkage moves to the open position and pushes the linkage protrusion through the reset block so that the locking end is in the locking handle position.

[0010] By adopting the above scheme, when the handle is buckled on the lock shell, the unlocking linkage is kept in the closed position by the limitation of the handle and the reset driving force of the reset mechanism, and the locking end can be disengaged from the unlocking linkage and electrically driven by the electric-controlled locking device to complete the locking and unlocking actions, thereby reducing power consumption; when the handle is opened from the lock shell, the unlocking linkage moves to the open and closed position under the action of the reset driving force of the reset mechanism, and at the same time, the reset shift block shifts the linkage protrusion so that the locking end is located in the locking position for locking the handle. In the absence of power (or in the event of an electrical failure of the electronic system including power outage, chip burnout, software crash, etc.), after the handle is opened, the locking end is automatically reset to the locked position by the action of the unlocking linkage, and the handle can be buckled when the handle is closed next time.

[0011] Preferably, the reset mechanism includes a reset spring, one end of which abuts against the unlocking linkage, and the other end of which abuts against the lock housing. Under this structural design, the unlocking linkage is reset through the reset spring, which has the advantages of simple structure, stable and reliable operation.

[0012] Preferably, it also includes a sensing switch installed in the lock housing for sensing the unlocking operation performed by the auxiliary unlocking operating mechanism, and a trigger rod is provided on the unlocking linkage. The unlocking member triggers the sensing switch through the trigger rod at the same time or before the unlocking member pushes the unlocking linkage to release the position where the locking end locks the handle, so as to output a sensing signal for the auxiliary unlocking operating mechanism to perform the unlocking operation. Under this structural design, a trigger rod is formed on the unlocking linkage, and the trigger rod moves with the unlocking linkage. When the unlocking linkage moves to the unlocking position, the triggering sensing switch is reached to form a trigger signal for the auxiliary unlocking operating mechanism to perform the unlocking operation. Furthermore, the reset spring is a coil spring sleeved on the trigger rod, the lock housing has a circuit board protection compartment for placing a circuit board of an electric-controlled locking device, the induction switch is placed in the circuit board protection compartment, the circuit board protection compartment has an avoidance through hole for the trigger end of the trigger rod to extend into, a rubber sealing ring is provided in the outer port of the avoidance through hole, the rubber sealing ring is sleeved on the trigger rod, the rubber sealing ring and the trigger rod are movably sealed, one axial end of the rubber sealing ring abuts against the wall of the circuit board protection compartment, and the other axial end of the rubber sealing ring abuts against a protective gasket, the protective gasket restricts the rubber sealing ring in the outer port of the avoidance through hole, and the reset spring abuts against the protective gasket, thereby constituting the reset spring abutting against the lock housing. Under this structural design, the trigger rod is used to position and install the reset spring, the circuit board is placed in the circuit board protection compartment to achieve dust and water protection, the trigger rod enters the circuit board protection compartment through the avoidance through hole and cooperates with the induction switch, and the trigger rod and the avoidance through hole are sealed through a rubber sealing ring to ensure the dust and water resistance of the circuit board protection compartment, the reset spring presses the rubber sealing ring against the protective gasket to achieve positioning and protection of the rubber sealing ring; the above structure has the advantage of compact structure.

[0013] Preferably, the locking end includes a lock tongue, which is driven by an iron core, and the lock tongue is linearly positioned and slidably matched in the lock housing. A clamping platform is provided on the handle, and the lock tongue and the clamping platform are clamped to realize the lock of the handle by the lock tongue. Under this structural design, the locking end adopts a lock tongue structure design driven by an iron core, and the lock tongue is positioned and slidably matched in the lock housing, thereby improving the anti-pry performance.

[0014] Preferably, the sides of the lock tongue and the card platform that are engaged with each other are provided with a buckle groove that is engaged with each other to form a buckle groove along the sliding direction of the lock tongue to prevent the lock tongue from being disengaged from the card platform, and the buckle grooves on the lock tongue and the card platform are engaged and disengaged along the opening and closing direction of the handle. Under this structural design, the anti-pry performance is improved. When unlocking, the handle needs to be pressed along the opening and closing direction of the handle to release the buckle of the buckle groove, so that the lock tongue can slide to disengage from the card platform to complete the unlocking action.

[0015] Preferably, the unlocking member includes a dial wheel that rotates and cooperates with the handle, and a cam protrudes radially from the dial wheel. The cam pushes and cooperates with the unlocking linkage member, and the auxiliary unlocking operating mechanism drives the dial wheel to rotate to realize the cam swinging into and out of the blocking surface. Under this structural design, the dial wheel rotates to move the cam, and then the cam enters the blocking surface and pushes the unlocking linkage member; it has the advantages of simple and compact structure and stable and reliable operation.

[0016] Preferably, the auxiliary unlocking mechanism is a lock core opened by a key, a key port for inserting the key into the lock core is provided on the handle, and a cover for blocking and opening the key port is provided on the handle. Under this structural design, the lock core has a certain anti-theft performance, and the cover blocks the key port and plays a role in dust protection.

[0017] Preferably, the handle has a protruding lifting tab on the open end thereof for moving the handle. With this structural design, when the lifting tab is stuck when the handle pops out, it is convenient to hold the handle to open it.

[0018] The present invention will be further described below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional diagram of an electronic cabinet lock according to a specific embodiment of the present invention;

[0020] Figure 2 This is a diagram showing a handle locking state of an electronic cabinet lock according to a specific embodiment of the present invention;

[0021] Figure 3 This is a diagram of the electric control unlocking state of an electronic cabinet lock according to a specific embodiment of the present invention;

[0022] Figure 4 This is a diagram showing the unlocking state of the auxiliary unlocking operating mechanism of the electronic cabinet lock in the first specific embodiment of the present invention;

[0023] Figure 5 The figure shows the open state of the handle of the electronic cabinet lock in the first specific embodiment of the present invention;

[0024] Figure 6 The figure is a schematic structural diagram of the unlocking linkage in the first specific embodiment of the present invention;

[0025] Figure 7 is Figure 4 a partial enlarged view of part A in;

[0026] Figure 8 The figure shows the open state of the handle of the electronic cabinet lock in the second specific embodiment of the present invention. Specific embodiments

[0027] Refer to the attached Figures 1-7 , the first specific embodiment;

[0028] An electronic cabinet lock disclosed by the present invention includes a lock housing 1 and a handle 2 movably arranged on the lock housing 1. A handle groove 11 for the handle 2 to be buckled is provided on the lock housing 1. An electric control locking device for locking the handle is arranged in the lock housing 1. An auxiliary unlocking operation mechanism 3 and an unlocking member 4 driven by the auxiliary unlocking operation mechanism 3 are provided on the handle 2. As is well known to those skilled in the art, the auxiliary unlocking operation mechanism 3 can be a lock core, a knob, a push button or a button, etc. To achieve the anti-theft performance of the mechanical operation mechanism, a lock core design is preferably adopted. The electric control locking device includes a self-holding electromagnet 5. The self-holding electromagnet 5 is a conventional component in the prior art. It can keep the iron core in the extended state or the retracted state when the electromagnetic coil is powered off, and drive the iron core to expand and contract by energizing the electromagnetic coil forward and backward (the electromagnetic coil and the permanent magnet are not shown in the figure). Therefore, its specific structure will not be described in detail. The iron core 51 of the self-holding electromagnet 5 has a locking end 52 for locking / unlocking the handle. A blocking surface 12 and an unlocking linkage 6 corresponding to and cooperating with the locking end 52 are arranged in the lock housing 1. When the unlocking member 4 pushes the unlocking linkage 6 to release the locking of the handle by the locking end 52, the unlocking member 4 enters the corresponding position of the blocking surface 12, thereby forming a stop cooperation between the unlocking member 4 and the blocking surface 12 in the opening direction of the handle 2 (such as Figure 4As shown). The locking end 52 on the iron core 51 of the self-holding electromagnet 5 cooperates with the unlocking member 4 through the unlocking linkage 6 to achieve the unlocking action through the auxiliary unlocking operating mechanism. When the auxiliary unlocking operating mechanism needs to release the lock of the handle from the locking end, the unlocking member enters the blocking surface position in the lock shell and is blocked by the blocking surface to lock the handle. To complete the opening of the handle, it is necessary to further release the lock of the unlocking member and the blocking surface. Therefore, when the self-holding electromagnet is normally powered on and operates, when the unlocking member exits the blocking surface, the unlocking member 4 releases the push of the unlocking linkage 6, and the locking end will be locked again under the action of the iron core, so that the auxiliary unlocking method cannot be used when the electric control locking device is working normally; when the self-holding electromagnet is powered off, the iron core is under the action of the self-holding electromagnet, and then the locking end is unlocked by the unlocking linkage 6 to maintain the position in the unlocked state, and then the unlocking member exits the blocking surface, and the handle can be opened; the electronic lock has the function of daily automatic unlocking and mechanical unlocking can only be opened when the electric control locking device fails. The locking end of the self-holding electromagnet cooperates with the unlocking part through the unlocking linkage part, so that the locking end and the unlocking part are separated in space. When the unlocking part releases the locking action of the locking end on the handle, the unlocking part itself needs to enter the blocking surface position to lock the handle, thereby improving the safety and reliability of the lock and improving the anti-pry performance. In addition, under the design of the blocking surface, it can cooperate with the unlocking part to lock the handle, so that the cabinet lock can also be used as a mechanical lock.

[0029] In order to reduce the power consumption of the electric control locking device when working, the unlocking linkage member 6 is provided with a toggle block 61, and the locking end 52 has a linkage protrusion 521 that pushes and cooperates with the toggle block 61. The unlocking linkage member 6 has an unlocking position (such as Figure 4 unlocked linkage 6 position as shown) and closed position (as shown Figure 2 and Figure 3As shown in the unlocking linkage member 6 position, when the unlocking member 4 pushes the unlocking linkage member 6 to the unlocking position, the toggle block 61 pushes the linkage protrusion 521 to drive the locking end 52 to unlock the handle 2, and the unlocking linkage member 6 is equipped with a reset mechanism that provides a reset driving force for the unlocking linkage member 6 to move from the unlocking position to the closed position. The reset mechanism includes a reset spring 6-1, one end of the reset spring 6-1 abuts on the unlocking linkage member 6, and the other end of the reset spring 6-1 abuts on the lock housing 1. Of course, as a feasible solution of the present invention, the reset mechanism can also use magnetic pole repulsion to provide a reset driving force, but the spring design has the advantages of simple structure and stable and reliable operation. During operation, the unlocking linkage member and the locking end are linked by pushing and matching, and the unlocking linkage member is reset from the unlocking position to the closed position by the reset mechanism, then the locking end can be detached from the unlocking linkage member and electrically driven by the electric control locking device to complete the locking and unlocking actions, thereby reducing power consumption. Under the guidance of the essential spirit of the present invention, those skilled in the art can adopt the design of a follower structure connected to the unlocking linkage member and the locking end without considering power consumption.

[0030] The unlocking linkage member 6 is further provided with a reset block 62. The reset block 62 and the reset block 61 are arranged in a spaced relationship along the extension direction of the iron core 51 to form an active space I. The linkage protrusion 521 extends into the active space I. The unlocking linkage member 6 is stopped by the handle 2 in a state of being buckled with the lock housing 1 and is limited in the closed position (such as Figure 2 and Figure 3 The unlocking linkage member 6 is in the position shown in the figure), as shown in the figure in this specific embodiment, the end of the unlocking linkage member abuts against the unlocking member to be restricted in the closed position. Of course, the end of the unlocking linkage member can directly abut against the outer surface of the handle to be restricted in the closed position, etc., and when the unlocking linkage member 6 is in the closed position, the movable interval I covers the movable stroke of the linkage protrusion 521 during the locking / unlocking action of the locking end 52, that is, when the unlocking linkage member 6 is in the closed position, the locking end 52 is locked and unlocked. The linkage protrusion 521 moves freely in the movable interval I, and the unlocking linkage member 6 also has an open position (as shown) driven by the reset driving force of the reset mechanism. Figure 5The unlocking linkage member 6 is in the position shown in the figure), and the handle 2 in the open state on the lock housing 1 releases the restriction on the unlocking linkage member 6, so that the unlocking linkage member 6 moves to the open position through the reset mechanism. The unlocking linkage member 6 moves to the open position and pushes the linkage protrusion 521 through the reset block 62 so that the locking end 52 is in the position of locking the handle 2. When the handle is opened from the lock housing, the unlocking linkage member moves to the open and closed position under the reset driving force of the reset mechanism, and the reset block moves the linkage protrusion so that the locking end is in the locking position of locking the handle. The locking end 52 is moved and avoided from the locking handle 2 position to the unlocking handle 2 position by the handle 2. Since the avoidance stroke is small, the iron core can be reset to the locking handle 2 position under the reset force and after the locking end 52 releases the contact pressure. The structure for realizing the displacement avoidance by the handle 2 pressing the locking end 52 can be a slope surface 5222 set on the locking end 52, or / and a slope 212 is set at the part of the handle 2 that locks with the locking end 52.

[0031] In order to improve the control performance of the lock, the cabinet lock also includes a sensing switch 7 installed in the lock shell 1 for sensing the unlocking operation performed by the auxiliary unlocking operating mechanism 3. A trigger rod 64 is set on the unlocking linkage 6. The unlocking member 4 pushes the unlocking linkage 6 to release the locking end 52 from the locked position of the handle 2 at the same time or before the trigger rod 64 triggers the sensing switch 7 to output the sensing signal of the auxiliary unlocking operating mechanism 3 to perform the unlocking operation. It should be pointed out here that the sensing switch can be a micro switch, or a photoelectric switch, or a magnetic induction switch, etc. The triggering is achieved by the action of the trigger rod to achieve the conversion of the sensing switch from one state to another, so that the sensing switch forms a sensing signal. Therefore, the triggering is not limited to the trigger rod 64 touching the sensing switch 7 to output the sensing signal of the auxiliary unlocking operating mechanism 3 to perform the unlocking operation; it can also be other forms, such as from the original touching and pressing state, the trigger rod 64 releases the sensing switch 7 to output the sensing signal of the auxiliary unlocking operating mechanism 3 to perform the unlocking operation. It is not difficult to understand that in realizing the induction of the unlocking action of the auxiliary unlocking operating mechanism, the movement of the components corresponding to the associated movement of the auxiliary unlocking operating mechanism can be used as the induction trigger signal, so the induction signal can also be, for example, the unlocking member moves to push the unlocking linkage member to release the locking action of the lock end on the handle, or the induction of the movement of the internal components of the auxiliary unlocking operating mechanism, etc. When the trigger rod design is adopted, the reset spring 6-1 used for resetting the unlocking linkage member is a coil spring, and the reset spring 6-1 can be mounted on the trigger rod 64, making the structural design more compact.

[0032] The lock housing 1 is provided with a circuit board protection bin 13 for placing a circuit board 8 that powers the electric control locking device. The induction switch 7 is placed inside the circuit board protection bin 13. The circuit board protection bin 13 has an avoidance through hole 131 for the trigger end of the trigger rod 64 to extend into. A rubber sealing ring 6-2 is provided inside the outer port of the avoidance through hole 131 (it should be noted here that the outer port of the avoidance through hole 131 is the end port corresponding to the outside of the circuit board protection bin 13 along the axis of the avoidance through hole 131). The rubber sealing ring 6-2 is sleeved on the trigger rod 64, and the rubber sealing ring 6-2 is in movable sealing cooperation with the trigger rod 64. One axial end of the rubber sealing ring 6-2 abuts against the wall of the circuit board protection bin 13, and a protective gasket 6-3 is abutted against the other axial end of the rubber sealing ring 6-2. The protective gasket 6-3 confines the rubber sealing ring 6-2 inside the outer port of the avoidance through hole 131. The return spring 6-1 abuts against the protective gasket 6-3, thus constituting that the return spring 6-1 abuts against the lock housing 1. The circuit board is placed in the circuit board protection bin to achieve dust and water protection. The trigger rod enters the circuit board protection bin through the avoidance through hole to cooperate with the induction switch, and the trigger rod and the avoidance through hole are in sealed cooperation through the rubber sealing ring, ensuring the dust and water protection performance of the circuit board protection bin. The return spring abuts against the protective gasket to press the rubber sealing ring, realizing the positioning and protection of the rubber sealing ring.

[0033] To further improve the security of the lock, the locking end 52 includes a lock tongue 522 driven by an iron core 51. The lock tongue 522 is in linear positioning and sliding fit inside the lock housing 1. A clamping platform 21 is provided on the handle 2, and the lock tongue 522 is clamped with the clamping platform 21 to realize the locking of the lock tongue 522 to the handle 2. Compared with the traditional structure design where the locking end is directly constituted by the end of the iron core, the locking end adopts a lock tongue structure driven by an iron core. The lock tongue is in positioning and sliding fit inside the lock housing, making the locking end have better fitting compactness and reliability, effectively improving the anti-prying performance.

[0034] Furthermore, on the side surfaces where the lock tongue 522 and the clamping platform 21 are mutually clamped, there are buckling grooves 5221 and 211 that are mutually buckled to form a blockage in the direction of preventing the lock tongue 522 from disengaging from the clamping platform 21 along the sliding direction of the lock tongue 522. The buckling grooves on the lock tongue 522 and the clamping platform 21 are buckled and disengaged along the opening and closing direction of the handle 2. In this way, the lock tongue cannot be directly toggled along the sliding direction of the iron core to disengage from the clamping platform on the handle. When unlocking, it is necessary to press the handle along the opening and closing direction of the handle to release the buckle of the clamping groove, and then the lock tongue can slide to disengage from the clamping platform to complete the unlocking action, further improving the security and anti-prying performance.

[0035] In this specific embodiment, the unlocking member 4 includes a dial wheel 41 that rotates and cooperates with the handle 2. The dial wheel 41 is installed on the lock core and driven to rotate by the lock core. The dial wheel 41 has a cam 42 protruding radially. The cam 42 pushes and cooperates with the unlocking linkage member 6. The auxiliary unlocking operating mechanism 3 drives the dial wheel 41 to rotate so as to swing the cam 42 into and out of the blocking surface 12. The dial wheel rotates to move the cam, and then the cam enters the blocking surface and pushes the unlocking linkage member; it has the advantages of simple and compact structure and stable and reliable operation. Of course, as known in the art, the action of the unlocking member is not limited to rotation, but can also be sliding, so the unlocking member can also be a sliding plate slidably set on the handle.

[0036] When the auxiliary unlocking operating mechanism 3 is designed as a lock core opened by a key, a key hole 22 for inserting a key into the lock core is provided on the handle 2, and a cover 2-1 for covering and opening the key hole 22 can also be provided on the handle 2. The lock core has a certain anti-theft performance, and the cover can cover the key hole and play a role in dust protection. The cover can further adopt an anti-theft structure design, such as the cover can be detachably installed on the handle using anti-theft bolts.

[0037] In existing products, the handle is usually designed to pop up automatically, but in order to deal with the limitation of the automatic pop-up function of the handle, as an emergency operation, the handle 2 has a protruding lifting tab 23 at one end for moving the handle 2. In this way, when the handle pops up and gets stuck, the lifting tab can be pinched to open the handle.

[0038] like Figure 8 As shown, another embodiment of the present invention is different from the specific embodiment 1 in that a reset block 62 is provided on the locking end 52, and the linkage protrusion 521 and the reset block 62 are spaced apart along the extension and contraction direction of the iron core 51 to form an active gap I, the toggle block extends into the active gap, and the unlocking linkage 6 is limited to the closed position by the stopper of the handle 2 in a state of being engaged with the lock shell 1, and when the unlocking linkage 6 is in the closed position, the active gap I covers the active stroke of the locking / unlocking action of the locking end, and the unlocking linkage 6 also has an open position driven by the reset driving force of the reset mechanism, and the handle in the open state on the lock shell releases the limitation on the unlocking linkage, thereby forming the unlocking linkage moving to the open position through the reset mechanism, and the unlocking linkage 6 moves to the open position and pushes the reset block 62 through the toggle block 61 so that the locking end 52 is in the locking handle position.

Claims

1. An electronic cabinet lock, comprising a lock housing and a handle movably arranged on the lock housing. An electric control locking device for locking the handle is arranged in the lock housing. An auxiliary unlocking operation mechanism and an unlocking member driven by the auxiliary unlocking operation mechanism are arranged on the handle. The electric control locking device includes a self-holding electromagnet, and the iron core of the self-holding electromagnet has a locking end for locking / unlocking the handle. It is characterized in that: The lock shell is provided with a blocking surface and an unlocking linkage piece corresponding to the locking end. The unlocking piece pushes the unlocking linkage piece to release the position of the locking end to lock the handle. The unlocking piece is located at the corresponding position of the blocking surface, thereby constituting a stop cooperation between the unlocking piece and the blocking surface in the opening direction of the handle. A toggle block is provided on the unlocking linkage piece. The locking end has a linkage protrusion that pushes and cooperates with the toggle block. The unlocking linkage piece has an unlocking position and a closing position along the movable direction. When the unlocking piece pushes the unlocking linkage piece to the unlocking position, the toggle block pushes the linkage protrusion to drive the locking end to release the handle lock. The unlocking linkage piece is cooperated with a reset mechanism that provides a reset driving force for the unlocking linkage piece to move from the unlocking position to the closed position.

2. The electronic cabinet lock according to claim 1, wherein: The unlocking linkage is also provided with a reset block, and the toggle block and the reset block are spaced apart along the extension and contraction direction of the iron core to form an active gap, and the linkage protrusion extends into the active gap, and the unlocking linkage is limited to the closed position by the handle stop in a state of being engaged with the lock shell, and when the unlocking linkage is in the closed position, the active gap covers the active stroke of the locking / unlocking action of the locking end, and the unlocking linkage also has an open position driven by the reset driving force of the reset mechanism, and the handle in the open state on the lock shell releases the limitation on the unlocking linkage, thereby forming the unlocking linkage moving to the open position through the reset mechanism, and the unlocking linkage moves to the open position and pushes the linkage protrusion through the reset block so that the locking end is in the locking handle position.

3. The electronic cabinet lock according to claim 1, wherein: The locking end is also provided with a reset block, and the linkage protrusion and the reset block are spaced apart along the extension and contraction direction of the iron core to form an active gap, and the toggle block extends into the active gap, and the unlocking linkage is limited to the closed position by the handle stop in a state of being buckled with the lock shell, and when the unlocking linkage is in the closed position, the active gap covers the active stroke of the locking / unlocking action of the locking end, and the unlocking linkage also has an open position driven by the reset driving force of the reset mechanism, and the handle in the open state on the lock shell releases the limitation on the unlocking linkage, thereby forming the unlocking linkage moving to the open position through the reset mechanism, and the unlocking linkage moves to the open position and pushes the reset block through the toggle block so that the locking end is in the locking handle position.

4. The electronic cabinet lock according to claim 2 or 3, characterized in that: The locking end is moved from the locking handle position to the unlocking handle position by being pressed by the handle, and can be reset to the locking handle position after the locking end releases the contact pressure.

5. The electronic cabinet lock according to claim 1, characterized in that: The reset mechanism comprises a reset spring, one end of which abuts against the unlocking linkage member, and the other end of which abuts against the lock housing.

6. The electronic cabinet lock according to claim 1, wherein: It further includes an induction switch installed inside the lock case for sensing the unlocking operation using the auxiliary unlocking operation mechanism. A trigger rod is provided on the unlocking linkage member. The unlocking member, when pushing the unlocking linkage member to release the locking position of the handle locking end, simultaneously or before, passes through the trigger rod trigger to sense the switch to output an induction signal for the auxiliary unlocking operation mechanism to perform the unlocking operation.

7. The electronic cabinet lock according to claim 5, wherein: The invention also includes a sensing switch installed in the lock housing for sensing the unlocking operation performed by the auxiliary unlocking operating mechanism. A trigger rod is provided on the unlocking linkage member. The unlocking member is pushed to release the locking end of the handle from the position of locking by the trigger rod at the same time or before the unlocking linkage member is pushed to release the locking end of the handle from the position of locking. trigger The induction switch outputs an induction signal for assisting the unlocking operating mechanism to perform an unlocking operation. The reset spring is a coil spring sleeved on the trigger rod. The lock shell has a circuit board protection compartment for placing a circuit board of an electric-controlled locking device. The induction switch is placed in the circuit board protection compartment. The circuit board protection compartment has an avoidance through hole for the trigger end of the trigger rod to extend into. A rubber sealing ring is provided in the outer port of the avoidance through hole. The rubber sealing ring is sleeved on the trigger rod. The rubber sealing ring and the trigger rod are movably sealed. One axial end of the rubber sealing ring abuts against the wall of the circuit board protection compartment. A protective gasket is provided at the other axial end of the rubber sealing ring. The protective gasket limits the rubber sealing ring in the outer port of the avoidance through hole. The reset spring abuts against the protective gasket, thereby constituting a reset spring abutting against the lock shell.

8. The electronic cabinet lock according to claim 1, wherein: The locking end comprises a locking tongue, which is driven by an iron core. The locking tongue is linearly positioned and slidably matched in the lock housing. A clamping platform is provided on the handle, and the locking tongue and the clamping platform are clamped to realize locking of the handle by the locking tongue.

9. The electronic cabinet lock according to claim 1, wherein: The unlocking member includes a thumbwheel rotatably engaged with the handle, a cam radially protruding from the thumbwheel, the cam pushes and cooperates with the unlocking linkage member, and the auxiliary unlocking operating mechanism drives the thumbwheel to rotate, so as to realize the cam swinging into and out of the blocking surface.

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