A lock

Abstract

The present invention provides a lock, which includes a body, a lock tongue, a locking member and a control mechanism; a locking groove is provided on the lock tongue; a first spring is provided between the lock tongue and the body; the control mechanism includes an actuator and a locking member; a locking portion and a locking portion are provided on the lock member; a second spring is provided between the lock member and the body; a third spring is provided between the locking member and the body; the actuator is used to drive the locking member to overcome the elastic force of the third spring and rotate in the opposite direction or move in the opposite direction parallelly and then disengage from the locking portion. The present invention has a more sophisticated structure, higher safety, higher versatility, and can meet the installation needs of various forms of cabinets.

Description

Technical Field

[0001] The present invention relates to the technical field of locks, and in particular to a lock for cabinets. Background Art

[0002] With the continuous development of social and urban civilization, various outdoor electrical control cabinets are becoming more and more common. For safety management, it is necessary to set safety locks on electrical control cabinets to prevent people from opening them privately and damaging electrical facilities. The existing cabinet locks have poor safety and controllability, especially the inability to achieve remote control, which needs to be improved.

[0003] Also, many old cabinets were not previously equipped with remotely controlled locks and needed to be retrofitted. However, due to the variety of cabinets, existing electric locks have poor versatility and cannot meet the installation needs of various cabinet door locks. Summary of the invention

[0004] The object of the present invention is to provide a lock to solve at least one of the above technical problems existing in the prior art.

[0005] In order to solve the above technical problems, the present invention provides a lock comprising: a body, and a lock tongue, a locking member and a control mechanism arranged on the body;

[0006] The lock tongue is movably arranged on the body; a slot is arranged on the lock tongue; a first spring is arranged between the lock tongue and the body, and the first spring tends to force the lock tongue to retreat and release the locking state;

[0007] The control mechanism includes an actuator and a locking member;

[0008] The locking member is movably arranged on the body, and is provided with a locking portion adapted to the slot and a locking portion adapted to the locking member;

[0009] A second spring is provided between the locking member and the body, and the second spring tends to force the locking portion of the locking member to move and then extend into the slot or the moving path of the slot;

[0010] The locking member is movably arranged on the body, and a third spring is arranged between the locking member and the body, and the third spring tends to force the locking member to rotate or translate, abut against the locking portion, and thus prevent the locking portion of the locking member from exiting the locking slot;

[0011] The actuator is used to drive the locking member to overcome the elastic force of the third spring and rotate in the opposite direction or move in the opposite direction in parallel to disengage from the locking portion.

[0012] When unlocking, the actuator drives the locking member to overcome the spring force of the third spring and disengage from the locking part, and presses the locking member to overcome the force of the second spring and exit the slot, releasing the lock on the lock tongue. The lock tongue retracts under the action of the first spring, releasing the locking state of the entire lock. When the entire lock is in use, the lock tongue is forced to extend to overcome the reset force of the first spring by external force, and the slot on the lock tongue moves to the set position (on the moving path of the locking part). The locking member rotates or moves under the action of the second spring, and its locking part is inserted into the slot. The locking member contacts the locking part on the locking member under the action of the third spring. The locking member and the locking part form a limiting structure. The locking member cannot move under the action of external force, preventing the locking part from exiting the slot, thereby preventing the lock tongue from retreating, and the lock is locked.

[0013] Preferably, the lock tongue is a straight plate type, and the lock tongue can be arranged on the body in a translational manner; or, the lock tongue is an arc-shaped strip, and the lock tongue can be arranged on the body in a swingable manner.

[0014] Furthermore, it also includes a limiting structure for limiting the position of the lock tongue during movement, for example, a limiting plate / limiting platform when the lock tongue extends to a set position, and a guide groove and a guide pin for limiting the movement path of the lock tongue.

[0015] Preferably, a guide groove is provided on the lock tongue, and the card slot is provided in the middle of the guide groove. The card slot is in the shape of a circular hole, and the diameter of the card slot is larger than the width of the guide groove; guide pins adapted to the guide groove are provided on the main body and on one or both sides of the card slot.

[0016] Preferably, the guide pin is provided with a supporting ring platform below the lock tongue, and a pressure cap is provided above the lock tongue, thereby limiting the lock tongue in two dimensions, i.e., up and down, to prevent the lock tongue from falling off.

[0017] Furthermore, the locking member is movably arranged on the body up and down in a direction perpendicular to the locking tongue plate surface.

[0018] Furthermore, the locking member is columnar, including an inner portion arranged in the body and an outer portion that can extend out of the body; the inner portion is provided with a locking portion whose outer diameter is adapted to the slot, and the locking portion is an annular limiting surface.

[0019] After the locking piece is in contact with the annular limiting surface, the locking piece is prevented from being pressed down under the action of external force and the locking part is prevented from being separated from the locking groove.

[0020] Preferably, an annular groove is provided on the inner portion and between the locking portion and the outer portion; the width of the annular groove is greater than the thickness of the locking tongue, and the outer diameter of the locking member at the annular groove is smaller than the width of the locking tongue guide groove. When the locking member is pressed down and the locking portion exits the slot, the thin neck portion corresponding to the annular groove on the locking member is inserted into the locking tongue guide groove, and the locking tongue can move under the action of the first spring.

[0021] The annular side surface of the annular groove on one side of the locking member is the annular limiting surface forming the locking portion.

[0022] Furthermore, a through hole is provided on the main body for the outer part to extend out; a limiting boss is provided on one side of the inner part of the outer part, and the outer diameter of the limiting boss is larger than the aperture of the through hole, so as to prevent the locking member from completely popping out from the main body.

[0023] Further, one end of the locking member is hingedly connected to the body, and the other end is connected to the actuator, and the locking member is provided with a clamping plate portion adapted to the locking portion. Preferably, the locking member is T-shaped as a whole.

[0024] Preferably, the third spring is arranged between the other end of the locking member and the body. The third spring tends to force the locking member to rotate, thereby achieving the limiting cooperation between the clamping plate portion and the locking portion.

[0025] Preferably, the third spring is a bent elastic metal sheet or metal wire.

[0026] Furthermore, the actuator is an electric telescopic mechanism, and its telescopic rod abuts against the other end of the locking member.

[0027] Furthermore, it also includes a built-in control module, which is connected to the actuator and is used to control the action of the actuator. More preferably, it also includes a wired communication module or a wireless communication module, which is used to connect to a remote background, or to connect to a mobile terminal such as a mobile phone or a notebook on site, so as to realize the switch control of the lock.

[0028] Furthermore, it also includes an external control unit, which includes an external power supply, an external control module and a plug; the main body is provided with an interface that is plugged in with the plug and is used to connect the external power supply and the external control module to the actuator.

[0029] When the built-in control module or the built-in power supply of the main body fails, a plug is inserted into the interface, and the actuator is powered by an external power supply. The external control module replaces the built-in control module and connects to the actuator to achieve control of the actuator and the entire lock.

[0030] The external control module and the internal control module are mature existing technologies and will not be described in detail here.

[0031] Furthermore, the external control unit also includes a control switch.

[0032] Furthermore, the interface outer cover has a sealing cover plate, and the sealing cover plate is fixedly connected to the body by screws, wherein the screw head preferably adopts a special-shaped structure to prevent non-professionals from opening it privately.

[0033] Furthermore, it also includes an emergency unlocking piece for emergency unlocking, and a through hole connecting the inside and outside of the main body is opened on the side panel of the main body, and the through hole is arranged facing the other end of the locking piece; the emergency unlocking piece can extend from the outside into the main body through the through hole and be connected to the other end of the locking piece, and is used to pull the locking piece to release the restriction on the locking part.

[0034] Furthermore, the front end of the emergency unlocking member (such as a metal wire) is provided with a hook or a ring, and the other end of the locking member is provided with a hook-shaped portion adapted to the hook or the ring on one side of the through hole;

[0035] Alternatively, a first magnetic block is disposed at the front end of the emergency unlocking member (eg, in a rod shape), and a second magnetic block that can be mutually attracted to the first magnetic block is disposed at the other end of the locking member on one side of the through hole.

[0036] Preferably, a blocking screw is screwed onto the through hole, and the blocking screw head preferably adopts a special-shaped structure to prevent non-professionals from opening it privately.

[0037] Furthermore, a lock plate matched with the lock tongue is also included. The main body and the lock plate are respectively arranged on the door body and the door frame. The lock plate can be straight, L-shaped or Z-shaped, so that it can be suitable for different door bodies and door frame structures.

[0038] Furthermore, it also includes a first sensor for sensing and monitoring whether the locking plate is plugged into the set position of the body.

[0039] Furthermore, a second sensor is included for sensing and monitoring whether the lock tongue is extended to a set locking position.

[0040] Preferably, the second sensor is a Hall sensor, and the lock tongue is provided with a second magnetic block adapted thereto. After the lock tongue is extended to a set position, the second magnetic block is close to the Hall sensor.

[0041] Furthermore, a buckle plate cavity for accommodating the lock buckle plate is provided on one side of the main body; a lock tongue hole for the lock tongue head to extend into the buckle plate cavity is provided on the inner plate wall of the buckle plate cavity; and a tail hole for the lock tongue tail to extend out is provided on the other side of the main body.

[0042] By setting up the buckle plate cavity, after the body and the lock buckle plate are buckled together, the connection structure between the lock buckle plate and the lock tongue is completely hidden in the buckle plate cavity, which is safer and more reliable.

[0043] Furthermore, the first sensor is a Hall sensor, and a first magnetic block is arranged on the outer plate wall of the buckle plate cavity; the first magnetic block and the first sensor are arranged relatively spaced apart; the locking plate is made of a material that can achieve magnetic shielding, and after the locking plate is inserted into the buckle plate cavity, it is placed between the first magnetic block and the first sensor to cut off the electromagnetic induction between the first magnetic block and the first sensor.

[0044] Furthermore, the main body includes a base and a box-shaped cover; the base is L-shaped as a whole, including a bottom plate and side plates, and the side plates and the cover body enclose the buckle plate cavity.

[0045] By adopting the above technical solution, the present invention has the following beneficial effects:

[0046] The lock provided by the present invention has a more sophisticated structure, higher safety, higher versatility, and can meet the installation needs of various forms of cabinets. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0048] Figure 1 A three-dimensional diagram of a lock provided by an embodiment of the present invention;

[0049] Figure 2 for Figure 1 An exploded view of the lock shown with the base removed;

[0050] Figure 3 for Figure 1 The lock is shown in a front view with the base removed;

[0051] Figure 4 for Figure 1 An exploded view of the lock shown with the base removed;

[0052] Figure 5 for Figure 1 A three-dimensional view of the lock with the cover removed;

[0053] Figure 6 A front view of a lock provided by an embodiment of the present invention;

[0054] Figure 7 for Figure 6 AA section view in;

[0055] Figure 8 is a three-dimensional diagram of a locking member;

[0056] Fig. 9 A three-dimensional diagram of the lock when equipped with an emergency unlocking component and an external control unit;

[0057] Fig.10 A cross-sectional view when locked with the locking plate;

[0058] Fig.11 It is a structural diagram of a straight type locking plate;

[0059] Fig.12 It is the structural diagram of the L-shaped lock plate;

[0060] Fig.13 This is a structural diagram of a Z-shaped lock plate. DETAILED DESCRIPTION

[0061] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0062] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0063] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0064] The present invention is further explained below in conjunction with specific implementation modes.

[0065] like Figure 1-10 As shown, a lock provided in this embodiment includes: a body 100 , wherein the body 100 includes a base 110 and a box-shaped cover 120 .

[0066] A lock tongue 200, a locking member 300 and a control mechanism 400 are arranged in the main body 100; the lock tongue 200 is movably arranged on the main body 100; a card slot 220 is arranged on the lock tongue 200; a first spring 210 is arranged between the lock tongue 200 and the main body 100, and the first spring 210 tends to force the lock tongue 200 to retreat and thus release the locked state; the control mechanism 400 includes an actuator 410 and a locking member 420.

[0067] The locking member 300 is movably arranged on the main body 100, and is provided with a locking portion 321 adapted to the slot 220, and a locking portion 322 adapted to the locking member 420; a second spring 310 is arranged between the locking member 300 and the main body 100, and the second spring 310 tends to force the locking portion 321 of the locking member 300 to move and enter the slot 220.

[0068] The locking member 420 is movably arranged on the main body 100, and a third spring 430 is arranged between the locking member 420 and the main body 100. The third spring 430 tends to force the locking member 420 to rotate, and the card plate portion 421 on the locking member 420 abuts against the locking portion 322 of the locking member 300, preventing the locking portion 321 from withdrawing from the slot 220; the actuator 410 is used to drive the locking member 420 to overcome the elastic force of the third spring 430 and rotate in the opposite direction or move in the opposite direction in parallel, thereby causing the card plate portion 421 to disengage from the locking portion 322.

[0069] Reference Figure 7 and 10 As shown, when unlocking, the actuator 410 drives the locking member 420 to overcome the spring force of the third spring 430 and disengage from the locking portion 322. By pressing or other means, the locking member 300 moves under the action of the external force to overcome the action of the second spring 310, and the locking portion 321 withdraws from the slot 220, releasing the lock on the lock tongue 200. The lock tongue 200 retracts under the action of the first spring 210, releasing the locking state of the entire lock. When the entire lock is in use, external force is used to force the lock tongue 200 to overcome the restoring force of the first spring 210 and extend, and the slot 220 on the lock tongue 200 moves to the set position or the moving path of the locking portion 321. In this embodiment, the locking member 300 can move up and down, and the slot 220 moves to the bottom of the locking member. The locking member 300 moves under the action of the second spring 310, and the locking portion 321 is inserted into the slot 220. The locking member 420 contacts the locking portion 322 on the locking member 300 under the action of the third spring 430. The locking member 420 and the locking portion 322 form a limiting structure. The locking member cannot move under the action of external force, preventing the locking portion 321 from exiting the slot 220, thereby preventing the lock tongue 200 from retreating, and the lock is locked.

[0070] In this embodiment, preferably, the lock tongue 200 is a straight plate type, and the lock tongue 200 can be arranged on the body 100 so as to be translatable left and right; and suboptimally, the lock tongue 200 can also be an arc-shaped strip, and the lock tongue 200 can be arranged on the body 100 so as to be swingable.

[0071] This embodiment also includes a limiting structure for limiting the position of the lock tongue 200 during its movement. The limiting plate / limiting platform when the lock tongue 200 extends to the set position, and the guide groove and guide pins used to limit the moving path of the lock tongue 200. Preferably, the lock tongue 200 is provided with a guide groove 230, and a clamping groove 220 is provided in the middle of the guide groove 230. The clamping groove 220 is in the shape of a circular hole, and the diameter of the clamping groove 220 is greater than the width of the guide groove 230; the body 100 and the left or right side of the clamping groove 220 are provided with a guide pin 500 adapted to the guide groove 230.

[0072] More preferably, the guide pin 500 is provided with a supporting ring platform below the lock tongue 200 and a pressure cap above the lock tongue 200, thereby limiting the lock tongue 200 in two dimensions, i.e., the upper and lower dimensions, to prevent the lock tongue 200 from falling off.

[0073] In this embodiment, the locking member 300 is disposed on the body 100 so as to be movable up and down in a direction perpendicular to the plate surface of the locking tongue 200. Figure 8 As shown, the locking member 300 is columnar, including an inner portion 320 disposed in the body 100 and an outer portion 330 that can extend out of the body 100; the inner portion 320 is provided with a locking portion 321 whose outer diameter matches the slot 220, and the locking portion 322 is an annular limiting surface. After the locking member 420 is in contact with the annular limiting surface, the locking member 300 is prevented from moving and disengaging from the slot 220 under the action of external forces such as being pressed. In this embodiment, the locking portion 322 is an annular groove 323 disposed between the locking portion 321 and the outer portion 330. The annular side surface of the annular groove 323 on one side of the locking member 420 or the outer portion 330 is the annular limiting surface forming the locking portion 322. The width of the annular groove 323 is greater than the thickness of the locking tongue 200, and the outer diameter of the locking member 300 at the annular groove 323 is smaller than the width of the guide groove 230 of the locking tongue 200. When the locking member 300 is pressed down and the locking portion 321 withdraws from the slot 220, the thin neck portion corresponding to the annular groove 323 on the locking member is inserted into the guide groove 230 of the locking tongue 200, and the locking tongue 200 can move along the direction of the guide groove relative to the locking member 300.

[0074] The main body 100 is provided with a through hole for the outer portion 330 to extend out; the outer portion 330 is provided with a limiting boss 331 on one side of the inner portion 320, and the outer diameter of the limiting boss 331 is larger than the aperture of the through hole, which is used to prevent the locking member 300 from completely popping out from the main body 100.

[0075] One end of the locking member 420 is hinged to the body 100 through the pivot shaft 440, and the other end is connected to the actuator 410. The locking member 420 is provided with a clamping plate portion 421 adapted to the locking portion 322. Preferably, the locking member 420 is T-shaped as a whole.

[0076] Preferably, the third spring 430 is disposed between the other end of the locking member 420 and the body 100. The third spring 430 tends to force the locking member 420 to rotate, thereby realizing the limited cooperation between the card plate portion and the locking portion 322. Preferably, the third spring 430 is a bent elastic metal sheet or metal wire. The actuator 410 is an electric telescopic mechanism. Its telescopic rod abuts against the other end of the locking member 420.

[0077] This embodiment also includes a built-in control module 450, which is connected to the actuator 410 and is used to control the action of the actuator 410. More preferably, it also includes a wired communication module or a wireless communication module (not shown) for connecting to a remote background, or to a mobile terminal such as a mobile phone or a notebook on site, so as to realize the switch control of the lock. In addition, a QR code 150 can be pasted on the outer shell of the body 100, and the lock can be identified by scanning the code using the app applet, and the lock can be controlled by the applet.

[0078] Reference Fig. 9 As shown, preferably, an external control unit 600 is configured, and the external control unit 600 includes an external power supply, an external control module, and a plug; the body 100 is provided with an interface 130 that is plugged with the external control unit 600 plug, and is used to connect the external power supply and the external control module with the actuator 410. When the built-in control module 450 or the built-in power supply of the body 100 fails, the external control unit 600 plug is inserted into the interface 130, and the external control unit 600 is provided with a control switch. After pressing the control switch, the external power supply supplies power to the actuator 410, and the external control module replaces the built-in control module and connects to the actuator 410 to achieve control of the actuator 410 and the entire lock. The external control module and the built-in control module are mature existing technologies and will not be described in detail here.

[0079] The interface 130 of the body 100 is covered with a sealing cover plate 140, and the sealing cover plate 140 is fixedly connected to the body 100 by screws. The screw head preferably adopts a special-shaped structure to prevent non-professionals from opening it privately.

[0080] Reference Fig. 9As shown, it is more preferred to further include an emergency unlocking member 700 for emergency unlocking, a through hole 102 connecting the inside and outside of the body 100 is provided on the side plate of the body 100, and the through hole 102 is arranged facing the other end of the fixing member 420; the emergency unlocking member 700 can extend from the outside into the body 100 through the through hole 102 and connect with the other end of the fixing member 420, and is used to pull the fixing member 420 to release the restriction on the fixing portion 322. There are various specific connection methods, for example, the emergency unlocking member 700 is a metal wire, a hook or a ring is provided at the front end, and a hook-shaped portion adapted to the hook or the ring is provided at the other end of the fixing member 420 on one side of the through hole; or, the emergency unlocking member 700 is a rod-shaped member, a first magnetic block is provided at the front end, and a second magnetic block that can be mutually adsorbed with the first magnetic block is provided at the other end of the fixing member 420 on one side of the through hole. Preferably, a blocking screw is screwed on the through hole 102 when it is not in use, and the blocking screw head preferably adopts a special-shaped structure to prevent non-professionals from opening it privately.

[0081] This embodiment further includes a lock plate 800 that cooperates with the lock tongue 200. The body 100 and the lock plate 800 are respectively arranged on the door body and the door frame.

[0082] The built-in control module 450 further includes a first sensor 451 for sensing and monitoring whether the locking plate 800 is plugged into a set position of the body 100; and a second sensor 452 for sensing and monitoring whether the locking tongue 200 is extended to a set locking position.

[0083] Preferably, the second sensor 452 is a Hall sensor, and a second magnetic block 453 adapted thereto is disposed on the lock tongue 200. After the lock tongue 200 extends to a set position, the second magnetic block 453 is close to the Hall sensor.

[0084] A latch plate cavity 101 for receiving the latch plate 800 is provided on one side of the main body 100; a latch hole 111 for the head of the latch tongue 200 to extend into the latch plate cavity 101 is provided on the inner wall of the latch plate cavity 101; and a tail hole 121 for the tail of the latch tongue 200 to extend out is provided on the other side of the main body 100.

[0085] By providing the buckle plate cavity 101, after the main body 100 and the locking plate 800 are buckled together, the connection structure between the locking plate 800 and the locking tongue 200 is completely hidden in the buckle plate cavity 101, which is safer and more reliable.

[0086] As an implementation mode, the first sensor 451 is a Hall sensor, which extends from the sensor hole 112 on the base 110 into the buckle plate cavity 101, and a first magnetic block (not shown) is provided on the outer plate wall of the buckle plate cavity 101; the first magnetic block and the first sensor 451 are arranged relatively spaced apart; the locking plate 800 is made of magnetic shielding material, and the locking plate 800 is inserted into the buckle plate cavity 101 and then placed between the first magnetic block and the first sensor 451, thereby cutting off the electromagnetic induction between the first magnetic block and the first sensor 451.

[0087] Furthermore, in this embodiment, the base 110 is L-shaped as a whole, including a bottom plate and a side plate, and a pinch plate cavity 101 is enclosed between the side plate and the cover body 120 .

[0088] Among them, refer to Figure 11-13 As shown, the locking plate 800 can be straight (or straight), L-shaped or Z-shaped, so that it can be suitable for different door bodies and door frame structures.

[0089] The lock provided by the present invention has a more sophisticated structure, higher safety, higher versatility, and can meet the installation needs of various forms of cabinets.

[0090] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A lock, characterized in that: include: A body, and a locking tongue, a locking member and a control mechanism arranged on the body; The lock tongue is movably arranged on the body; a slot is arranged on the lock tongue; a first spring is arranged between the lock tongue and the body, and the first spring tends to force the lock tongue to retreat and release the locking state; The control mechanism includes an actuator and a locking member; The locking member is movably arranged on the body, and is provided with a locking portion adapted to the slot and a locking portion adapted to the locking member; A second spring is provided between the locking member and the body, and the second spring tends to force the locking portion of the locking member to move and then extend into the slot or the moving path of the slot; The locking member is movably arranged on the body, and a third spring is arranged between the locking member and the body, and the third spring tends to force the locking member to rotate or translate, abut against the locking portion, and thus prevent the locking portion of the locking member from exiting the locking slot; The actuator is used to drive the locking member to overcome the elastic force of the third spring and rotate in the opposite direction or move in the opposite direction in parallel to disengage from the locking portion.

2. The lock according to claim 1, characterized in that: The lock tongue is a straight plate type, and the lock tongue can be arranged on the body in a translational manner; or the lock tongue is an arc-shaped strip, and the lock tongue can be arranged on the body in a swingable manner.

3. The lock according to claim 1, characterized in that: The locking tongue is provided with a guide groove, the middle part of which is provided with the clamping groove, which is in the shape of a circular hole, and the diameter of which is larger than the width of the guide groove; the body and one or both sides of the clamping groove are provided with guide pins adapted to the guide groove.

4. The lock according to claim 3, characterized in that: The guide pin column is provided with a supporting ring platform below the lock tongue, and a pressing cap is provided above the lock tongue.

5. The lock according to claim 3, characterized in that: The locking member is arranged on the main body so as to be movable up and down in a direction perpendicular to the locking tongue plate surface.

6. The lock according to claim 5, characterized in that: The locking member is columnar, comprising an inner portion arranged in the body and an outer portion that can extend out of the body; the inner portion is provided with a locking portion whose outer diameter matches the slot, and the locking portion is an annular limiting surface.

7. The lock according to claim 6, characterized in that: An annular groove is provided on the inner portion and between the locking portion and the outer portion; the width of the annular groove is greater than the thickness of the locking tongue, and the outer diameter of the locking member at the annular groove is smaller than the width of the locking tongue guide groove. When the locking member is pressed down and the locking portion exits the slot, the thin neck portion corresponding to the annular groove on the locking member is inserted into the locking tongue guide groove, and the locking tongue can move under the action of the first spring.

8. The lock according to claim 6, characterized in that: The main body is provided with a through hole for the outer part to extend out; the outer part is provided with a limiting boss on one side of the inner part, and the outer diameter of the limiting boss is larger than the aperture of the through hole, which is used to prevent the locking member from completely popping out from the main body.

9. The lock according to claim 1, characterized in that: One end of the locking member is hinged to the main body, and the other end is connected to the actuator. The locking member is provided with a locking plate portion adapted to the locking portion.

10. The lock according to claim 9, characterized in that: The third spring is arranged between the other end of the locking member and the body; the third spring tends to force the locking member to rotate, thereby achieving the limiting cooperation between the clamping plate part and the locking part.

11. The lock according to claim 1, characterized in that: It also includes a built-in control module, which is connected to the actuator and is used to control the action of the actuator.

12. The lock according to claim 11, characterized in that: It also includes a wired communication module or a wireless communication module for connecting to a remote background or to an on-site mobile terminal to achieve switch control of the lock.

13. The lock according to claim 11, characterized in that: It also includes an external control unit, which includes an external power supply, an external control module and a plug; the main body is provided with an interface that is plugged in with the plug and is used to connect the external power supply and the external control module to the actuator.

14. The lock according to claim 13, characterized in that: The external control unit also includes a control switch.

15. The lock according to claim 13, characterized in that: The interface outer cover is provided with a sealing cover plate, and the sealing cover plate is fixedly connected to the body by screws.

16. The lock according to claim 1, characterized in that: It also includes an emergency unlocking piece for emergency unlocking, and a through hole connecting the inside and outside of the main body is opened on the side panel of the main body, and the through hole is arranged facing the other end of the locking piece; the emergency unlocking piece can extend into the main body from the outside through the through hole and be connected with the other end of the locking piece, and is used to pull the locking piece to release the restriction on the locking part.

17. The lock according to claim 16, characterized in that: The front end of the emergency unlocking member is provided with a hook or a ring, and the other end of the locking member is provided with a hook-shaped portion adapted to the hook or the ring on one side of the through hole; Alternatively, a first magnetic block is arranged at the front end of the emergency unlocking member, and a second magnetic block which can be mutually attracted to the first magnetic block is arranged at the other end of the locking member on one side of the through hole.

18. The lock according to claim 16, characterized in that: A blocking screw is screwed onto the through hole.

19. The lock according to claim 1, characterized in that: It also includes a lock plate matched with the lock tongue; the main body and the lock plate are respectively arranged on the door body and the door frame.

20. The lock according to claim 19, characterized in that: It also includes a first sensor for sensing and monitoring whether the locking plate is plugged into the set position of the body.

21. The lock according to claim 19, characterized in that: A second sensor is also included, which is used to sense and monitor whether the lock tongue is extended to a set locking position.

22. The lock according to claim 21, characterized in that: The second sensor is a Hall sensor, and a second magnetic block adapted thereto is arranged on the lock tongue.

23. The lock according to claim 20, characterized in that: A buckle plate cavity for receiving the lock buckle plate is arranged on one side of the main body; a lock tongue hole for the lock tongue head to extend into the buckle plate cavity is arranged on the inner plate wall of the buckle plate cavity; and a tail hole for the lock tongue tail to extend out is arranged on the other side of the main body.

24. The lock according to claim 23, characterized in that: The first sensor is a Hall sensor, and a first magnetic block is arranged on the outer wall of the buckle plate cavity; the first magnetic block and the first sensor are arranged relatively spaced apart; the locking plate is made of magnetic shielding material, and the locking plate is inserted into the buckle plate cavity and placed between the first magnetic block and the first sensor to cut off the electromagnetic induction between the first magnetic block and the first sensor.

25. The lock according to claim 23, characterized in that: The body comprises a base and a box-shaped cover; the base is L-shaped as a whole, comprising a bottom plate and side plates, and the side plates and the cover form the buckle plate cavity.

26. The lock according to claim 19, characterized in that: The locking plate can be straight, L-shaped or Z-shaped.

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