Lock body

Abstract

The utility model discloses a lock body which comprises a lock shell, a counter lock tongue, a driving motor and a handle seat, and the lock shell is provided with a plurality of first tongue holes; the counter lock tongue comprises a mounting plate and at least two square tongues connected to one end of the mounting plate, the square tongues are sequentially arranged at intervals, and each square tongue is correspondingly mounted in one first tongue hole; a receding notch is formed in one side of the mounting plate, and a rack part extending in the motion direction of the counter lock tongue is arranged in the receding notch. The driving motor is arranged in the lock shell and is in transmission connection with the rack part; and the handle seat is rotationally mounted on the lock shell and is in transmission connection with the rack part. According to the technical scheme, the counter lock tongue can move stably, and meanwhile the structure compactness of the lock body is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of locks, in particular to a lock body. Background Art

[0002] With the development of technology, the application of electronic locks has become more and more extensive. Compared with traditional pure mechanical locks, in electronic locks, a motor is generally set in the lock body, and the motor is controlled by an electronic key to achieve unlocking. In order to improve security, a counter-lock tongue (generally a square tongue) is generally set in the lock body, and a slide groove inclined relative to the movement direction of the counter-lock tongue is set on the counter-lock tongue. A rotatable fork is provided in the lock shell, so that one end of the fork is slidably installed in the slide groove. When the motor drives the fork to rotate, the counter-lock tongue is extended or retracted into the lock shell through the cooperation of the fork and the slide groove to achieve unlocking or locking. In order to ensure that the counter-lock tongue is evenly stressed and moves stably, the slide groove is usually placed close to the center area of ​​the counter-lock tongue. However, such a setting requires not only sufficient space on the counter-lock tongue to set the slide groove, but also requires a large space in the lock shell for the fork to move, which easily leads to an oversized lock body. Utility Model Content

[0003] The main purpose of the utility model is to provide a lock body, which aims to stabilize the movement of the anti-lock tongue and improve the compactness of the lock body structure.

[0004] In order to achieve the above-mentioned purpose, the lock body proposed by the utility model comprises:

[0005] The lock housing is provided with a plurality of first tongue holes;

[0006] The anti-locking tongue comprises a mounting plate and at least two square tongues connected to one end of the mounting plate, wherein the square tongues are arranged in sequence and spaced apart, and each square tongue is correspondingly mounted in one of the first tongue holes; an avoidance notch is provided on one side of the mounting plate, and a rack portion extending along the movement direction of the anti-locking tongue is provided in the avoidance notch;

[0007] A driving motor is disposed in the lock housing and is drivingly connected to the rack portion; and

[0008] The handle seat is rotatably mounted on the lock housing and is transmission-connected with the rack portion.

[0009] Optionally, the lock body further comprises a transmission gear, which is rotatably mounted on the lock housing and meshes with the rack portion, and the drive motor and the handle seat are both transmission-connected to the transmission gear.

[0010] Optionally, a first gear is provided on the handle seat, the first gear is meshed with the transmission gear, and is spaced apart from the mounting plate in the axial direction of the handle seat.

[0011] Optionally, a relief groove is provided on one side of the mounting plate facing the first gear, and the first gear is located at the relief groove.

[0012] Optionally, the mounting plate is provided with a relief hole, the handle seat passes through the relief hole, and the dimension of the relief hole along the movement direction of the anti-lock tongue is greater than the diameter of the corresponding part of the handle seat.

[0013] Optionally, the driving motor is located on the side of the transmission gear away from the handle seat.

[0014] Optionally, the mounting plate is provided with at least two sliding protrusions, and each sliding protrusion on the lock housing is provided with a sliding groove, the sliding groove extends along the movement direction of the anti-lock tongue, and the sliding protrusion is slidably mounted in the sliding groove.

[0015] Optionally, at least two of the sliding protrusions are spaced apart in the arrangement direction of two adjacent square tongues.

[0016] Optionally, the mounting plate has opposite first and second side surfaces, and the sliding protrusions are provided on both the first side surface and the second side surface.

[0017] Optionally, two sliding protrusions are provided at a position on the first side surface close to the square tongue, and the two sliding protrusions on the first side surface are spaced apart in the arrangement direction of two adjacent square tongues; at least one sliding protrusion is provided at a position on the second side surface away from the square tongue, and the sliding protrusion on the second side surface is located between the two sliding protrusions on the first side surface in the arrangement direction of two adjacent square tongues.

[0018] Optionally, an installation groove is provided on the mounting plate, the installation groove penetrates through the side surface of the mounting plate facing away from the rack portion, a contact portion is formed on the side wall of the installation groove away from the square tongue, the lock body further includes a lock core mechanism, the lock core mechanism is provided on the side of the mounting plate facing away from the rack portion and has a toggling member extending into the installation groove, the toggling member is located on the side of the contact portion facing the square tongue, so as to be able to push against the contact portion when the toggling member is moved by a key, thereby retracting the square tongue into the first tongue hole.

[0019] Optionally, the lock body further includes an electric control device and a sensing device, the sensing device is provided on the lock housing, the sensing device and the driving motor are both electrically connected to the electric control device, the sensing device is configured to be triggered when the door is closed, and the electric control device is configured to control the driving motor to drive the square tongue of the anti-lock tongue to extend out of the first tongue hole when the sensing device is triggered.

[0020] In the technical solution of the utility model, the anti-locking tongue comprises a mounting plate and at least two square tongues connected to one end of the mounting plate. By setting an avoidance notch on one side of the mounting plate, a rack portion extending along the movement direction of the anti-locking tongue is provided in the avoidance notch, and the rack portion is connected to the handle seat and the driving motor by transmission. In this way, on the one hand, the rack portion can be close to the central axis of the anti-locking tongue, and when the anti-locking tongue is driven to move by the handle seat or the driving motor, the anti-locking tongue can be subjected to a more uniform force, thereby improving the anti-locking tongue movement stability; on the other hand, the anti-locking tongue can be installed in the transmission mechanism by using the avoidance space, which can reduce the space occupied by the anti-locking tongue in the lock shell, improve the compactness of the lock body structure, and avoid the lock body from being too large in size. In addition, a first tongue hole is provided on the lock shell corresponding to each square tongue, which can not only ensure the reliability of anti-locking, but also provide a better guiding effect for the movement of the anti-locking tongue, thereby improving the anti-locking tongue movement stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0022] Figure 1 This is a structural schematic diagram of an embodiment of a lock body of the utility model;

[0023] Figure 2 for Figure 1 A schematic diagram of the structure on the other side of the middle lock body;

[0024] Figure 3 for Figure 1 Schematic diagram of the structure after the middle lock body hides part of the lock shell;

[0025] Figure 4 for Figure 3 A schematic diagram of the structure when the middle lock body is in the reverse locking state;

[0026] Figure 5 for Figure 1 Schematic diagram of the structure of the middle lock body after some of its structures are hidden;

[0027] Figure 6 for Figure 2 A schematic diagram of the structure of the central anti-lock bolt, the drive motor and the handle seat;

[0028] Figure 7 for Figure 6 Schematic diagram of the structure of the middle reverse lock tongue;

[0029] Figure 8 for Figure 7 Schematic diagram of the structure on the other side of the middle reverse lock tongue;

[0030] Figure 9 for Figure 6 A schematic diagram of the structure of the middle handle seat and the first gear;

[0031] Figure 10 for Figure 6 Schematic diagram of the structure of the middle transmission gear and the second gear.

[0032] Description of Figure Numbers:

[0033] 10. Lock housing; 11. First tongue hole; 12. Second tongue hole; 13. Slide groove; 20. Anti-lock tongue; 21. Mounting plate; 211. Avoidance gap; 212. Rack portion; 213. Avoidance hole; 214. Avoidance groove; 215. Sliding protrusion; 216. Mounting groove; 22. Square tongue; 30. Driving motor; 40. Handle seat; 41. Limiting protrusion; 51. Transmission gear; 511. Second abutment portion; 52. First gear; 521. Mounting hole; 522. Matching gap; 53. Second gear; 531. First abutment portion; 60. Toggle member; 61. First arm; 62. Second arm; 70. Lock core mechanism; 71. Fork; 80. Induction device; 81. Triggering oblique tongue; 82. Sensor; 83. Elastic member.

[0034] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0037] In addition, if the embodiments of the present utility model involve descriptions such as "first", "second", etc., the descriptions of "first", "second", etc. are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and / or" appearing throughout the text is that it includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, or solution B, or a solution where A and B are satisfied simultaneously. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0038] The present utility model provides a lock body.

[0039] In an embodiment of the present utility model, as Figures 1 to 10 shown, the lock body includes a lock case 10, a deadbolt 20, a driving motor 30, and a handle base 40. The lock case 10 is provided with a plurality of first tongue holes 11; the deadbolt 20 includes a mounting plate 21 and at least two square tongues 22 connected to one end of the mounting plate 21. The square tongues 22 are arranged at intervals in sequence, and each square tongue 22 is correspondingly installed in a first tongue hole 11; a relief notch 211 is provided on one side of the mounting plate 21, and a rack portion 212 extending along the movement direction of the deadbolt 20 is provided in the relief notch 211; the driving motor 30 is arranged in the lock case 10 and is in transmission connection with the rack portion 212; the handle base 40 is rotatably installed on the lock case 10 and is in transmission connection with the rack portion 212.

[0040] Specifically, the plurality of first tongue holes 11 are arranged at intervals in sequence along the height direction of the lock case 10. The mounting plate 21 and the square tongues 22 are integrally connected. The mounting plate 21 is parallel to the height direction of the lock case 10. That is, when the lock body is installed on the door body, the height direction of the lock case 10 is consistent with the up-down direction, and the relief notch 211 is located on the upper side or the lower side of the mounting plate 21.

[0041] In the technical solution of the present utility model, the anti-lock tongue 20 includes a mounting plate 21 and at least two square tongues 22 connected to one end of the mounting plate 21. By providing an avoidance notch 211 on one side of the mounting plate 21, a rack portion 212 extending along the movement direction of the anti-lock tongue 20 is provided in the avoidance notch 211, and the rack portion 212 is in transmission connection with the handle seat 40 and the driving motor 30. In this way, on the one hand, the rack portion 212 can be made closer to the central axis of the anti-lock tongue 20. When the anti-lock tongue 20 is driven to move by the handle seat 40 or the driving motor 30, the anti-lock tongue 20 can be more evenly stressed, thereby improving the movement stability of the anti-lock tongue 20. On the other hand, the transmission mechanism can be installed using the avoidance space, which can reduce the occupied space of the anti-lock tongue 20 in the lock housing 10, improve the compactness of the lock body structure, and prevent the lock body from being too large. Moreover, a first tongue hole 11 corresponding to each square tongue 22 is provided on the lock housing 10, which can not only ensure the anti-lock reliability but also provide a good guiding effect for the movement of the anti-lock tongue 20, thereby improving the movement stability of the anti-lock tongue 20.

[0042] In some embodiments, the lock body further includes a transmission gear 51. The transmission gear 51 is rotatably installed in the lock housing 10 and meshes with the rack portion 212. Both the driving motor 30 and the handle seat 40 are in transmission connection with the transmission gear 51. Specifically, the transmission gear 51 is located at the avoidance notch 211. Both the driving motor 30 and the handle seat 40 drive the anti-lock tongue 20 to move through the transmission gear 51. Compared with the method in which the handle seat 40 and the driving motor 30 each cooperate with the rack portion 212 through a gear, sharing the transmission gear 51 by the driving motor 30 and the handle seat 40 in this way can simplify the number of components of the transmission mechanism and improve the compactness of the lock body structure.

[0043] In some embodiments, the mounting plate 21 is provided with an avoidance hole 213. The handle seat 40 passes through the avoidance hole 213, and the dimension of the avoidance hole 213 along the movement direction of the anti-lock tongue 20 is larger than the diameter of the corresponding part of the handle seat 40. That is, the handle seat 40 rotatably passes through the avoidance hole 213. Compared with the case where the handle seat 40 is arranged beside the anti-lock tongue 20, the installation space of the handle seat 40 and the anti-lock tongue 20 partially overlaps in this way, which can further improve the compactness of the lock body structure.

[0044] In some embodiments, the driving motor 30 is located on the side of the transmission gear 51 away from the handle seat 40. That is, the handle seat 40 and the driving motor 30 are respectively arranged on opposite sides of the transmission gear 51, which can avoid interference between the driving motor 30 and the handle seat 40.

[0045] In some embodiments, a first gear 52 is provided on the handle base 40. The first gear 52 meshes with the transmission gear 51 and is spaced apart from the mounting plate 21 in the axial direction of the handle base 40. Such an arrangement can simplify the transmission structure between the handle base 40 and the transmission gear 51, which is beneficial to improving the compactness of the lock body structure. In the embodiment where the mounting plate 21 is provided with an avoidance hole 213, the diameter of the first gear 52 can be reduced, thereby further improving the compactness of the lock body structure.

[0046] Optionally, the first gear 52 is provided with a mounting hole 521 and a mating notch 522 located on the hole wall of the mounting hole 521. The first gear 52 is rotatably sleeved on the handle base 40 through the mounting hole 521. The handle base 40 is provided with a limiting convex portion 41, and the limiting convex portion 41 is correspondingly located within the mating notch 522. The width of the mating notch 522 in the circumferential direction of the handle base 40 is greater than the width of the limiting convex portion 41 in the circumferential direction of the handle base 40. That is, when the handle rotates relative to the first gear 52 until the limiting convex portion 41 abuts against any side wall of the mating notch 522, the handle base 40 can drive the first gear 52 to rotate. Such an arrangement, by adjusting the initial positions of the first gear 52 and the handle base 40, makes the limiting convex portion 41 close to the first side wall of the mating notch 522.

[0047] When the drive motor 30 drives the transmission gear 51 to rotate and drives the anti-lock tongue 20 to extend out of the first tongue hole 11, the transmission gear 51 drives the first gear 52 to rotate relative to the handle base 40. During this process, the second side wall (the second side wall is opposite to the first side wall) of the mating notch 522 gradually approaches the limiting convex portion 41. When the anti-lock tongue 20 extends in place, the second side wall of the mating notch 522 contacts or is spaced from the limiting convex portion 41. And when opening the door, the drive motor 30 drives the transmission gear 51 to rotate in the reverse direction to drive the anti-lock tongue 20 to retract into the first tongue hole 11. At this time, the first gear 52 also rotates in the reverse direction relative to the handle base 40, making the first side wall gradually approach the limiting convex portion 41. Until after the anti-lock tongue 20 retracts into the first tongue hole 11, the first side wall contacts or is spaced from the limiting convex portion 41. This can prevent the handle base 40 from rotating when the drive motor 30 drives the transmission gear 51 to rotate, and can reduce the load of the drive motor 30. Of course, in other embodiments, it is also possible to provide a movable pin between the first gear 52 and the handle base 40 to disengage the first gear 52 through the pin.

[0048] Optionally, the handle base 40 is used to connect the inner door handle, and the handle base 40 is separated from or connected to the outer door handle through a clutch mechanism. In this way, the user can unlock the anti-lock inside the door through the handle, and can also achieve anti-locking by the user through the handle inside the door, which is convenient for the user to use inside the door and at the same time avoids the situation of directly unlocking through the handle outside the door.

[0049] In some embodiments, a side of the mounting plate 21 facing the first gear 52 is provided with an avoidance groove 214, and the first gear 52 is located at the avoidance groove 214. In this way, the avoidance groove 214 can be used to accommodate at least part of the first gear 52, which is conducive to reducing the space occupied by the first gear 52 and the mounting plate 21 in the thickness direction of the lock housing 10, thereby reducing the thickness of the lock body.

[0050] In some embodiments, the mounting plate 21 is provided with at least two sliding protrusions 215, and the lock housing 10 is provided with a sliding groove 13 corresponding to each sliding protrusion 215, the sliding groove 13 extends along the movement direction of the anti-locking tongue 20, and the sliding protrusion 215 is slidably installed in the sliding groove 13. Such a simple structure can not only provide a good guide for the movement of the anti-locking tongue 20, but also avoid occupying the internal space of the lock housing 10.

[0051] In some embodiments, at least two sliding protrusions 215 are arranged at intervals in the arrangement direction of two adjacent square tongues 22. This can effectively prevent the anti-locking tongue 20 from deviating during the movement, thereby improving the movement stability of the anti-locking tongue 20.

[0052] In some embodiments, the mounting plate 21 has a first side surface and a second side surface opposite to each other, and both the first side surface and the second side surface are provided with a sliding protrusion 215. In this way, the forces on both sides of the anti-locking tongue 20 can be evenly applied, thereby improving the movement stability of the anti-locking tongue 20. Of course, in other embodiments, the sliding protrusions 215 on the first side surface and the second side surface are coaxially arranged.

[0053] In some embodiments, two sliding protrusions 215 are provided at a position close to the square tongue 22 on the first side, and the two sliding protrusions 215 on the first side are spaced apart in the arrangement direction of two adjacent square tongues 22; at least one sliding protrusion 215 is provided at a position away from the square tongue 22 on the second side, and the sliding protrusion 215 on the second side is located between the two sliding protrusions 215 on the first side in the arrangement direction of two adjacent square tongues 22. In this way, while the forces on both sides of the anti-lock tongue 20 are evenly applied, the anti-lock tongue 20 can be better prevented from being offset during movement, thereby improving the movement stability of the anti-lock tongue 20.

[0054] In some embodiments, a mounting groove 216 is provided on the mounting plate 21, and the mounting groove 216 passes through the side of the mounting plate 21 away from the rack portion 212. The side wall of the mounting groove 216 away from the square tongue 22 forms an abutment portion. The lock body also includes a lock core mechanism 70. The lock core mechanism 70 is arranged on the side of the mounting plate 21 away from the rack portion 212, and has a toggle member 60 extending to the mounting groove 216. The toggle member 60 is located on the side of the abutment portion facing the square tongue 22, so that when the toggle member 60 is moved by the key, it can push the abutment portion, thereby retracting the square tongue 22 into the first tongue hole 11.

[0055] Specifically, the toggle member 60 is rotatably installed on the lock housing 10, and has a first arm 61 extending toward the lock core mechanism 70 and a second arm 62 extending toward the counter lock tongue 20, the second arm 62 extends into the mounting groove 216, the first arm 61 is arranged corresponding to the fork 71 of the lock core mechanism 70, so that the fork 71 can push the first arm 61 to drive the second arm 62 to move toward the side wall of the mounting groove 216 facing the first tongue hole 11, so that when the second arm 62 abuts against the side wall of the mounting groove 216 facing the first tongue hole 11, the square tongue 22 is pushed to retract into the first tongue hole 11. That is, in the closed state, when the square tongue 22 extends from the first tongue hole 11, the fork 71 is rotated by the key, and the fork 71 pushes the first arm 61 to rotate the toggle member 60, so that the second arm 62 moves toward the side wall of the installation groove 216 facing the first tongue hole 11, and then the square tongue 22 is driven to retract into the first tongue hole 11 by pushing the side wall of the installation groove 216 facing the first tongue hole 11, thereby achieving unlocking. In this way, the anti-lock tongue 20 can be unlocked by driving the driving motor 30 or by driving the anti-lock tongue 20 by the key, which is convenient for users to choose to use, and even when the driving motor 30 is powered off, it can be unlocked by the key, which is convenient for users to use.

[0056] In some embodiments, the lock body further comprises a second gear 53, which is coaxially arranged with the transmission gear 51 and can rotate relative to the transmission gear 51, and the second gear 53 is in transmission connection with the driving motor 30, one of the second gear 53 and the transmission gear 51 is provided with two first abutting portions 531, and the other is provided with a second abutting portion 511 extending between the two first abutting portions 531, the two first abutting portions 531 are spaced apart along the circumference of the second gear 53, and the spacing between the two first abutting portions 531 in the circumferential direction of the second gear 53 is greater than the width of the second abutting portion 511 in the circumferential direction of the second gear 53, so that when the second abutting portion 511 abuts against one of the first abutting portions 531, the second abutting portion 511 is spaced apart from the other first abutting portion 531. When the second gear 53 rotates in any direction until the corresponding first abutting portion 531 abuts against the side of the second abutting portion 511, the transmission gear 51 is driven to rotate, thereby driving the anti-lock tongue 20 to move. With such arrangement, during assembly, by adjusting the cooperation among the second gear 53, the first gear 52 and the transmission gear 51, it is possible to prevent the handle base 40 from driving the transmission gear 51 to rotate and drive the drive motor 30 to rotate. In addition, the space in the thickness direction of the lock housing 10 can be used to arrange the second gear 53 and the transmission gear 51, which can improve the compactness of the lock body structure. Optionally, the drive motor 30 is a reduction motor.

[0057] In some embodiments, the lock body further includes an electric control device and an induction device 80. The induction device 80 is disposed in the lock housing 10. Both the induction device 80 and the drive motor 30 are electrically connected to the electric control device. The induction device 80 is configured to be triggered when the door is closed. The electric control device is configured to control the drive motor 30 to drive the square tongue 22 of the anti-lock tongue 20 to extend out of the first tongue hole 11 when the induction device 80 is triggered. Specifically, when the lock body is installed on the door body and used, in the open door state, the square tongue 22 is in a state of being retracted into the first tongue hole 11. When the door is closed until the door body is located within the door frame, the induction device 80 can be triggered by the door frame. The induction device 80 sends an electrical signal to the electric control device. When the electric control device receives the electrical signal sent by the induction device 80, it controls the drive motor 30 to drive the square tongue 22 of the anti-lock tongue 20 to extend out of the first tongue hole 11, so that the square tongue 22 extends into the corresponding lock hole of the door frame. In this way, automatic anti-locking can be achieved when the door is closed, avoiding the situation of manual anti-locking by the user and also avoiding the situation that the user forgets to anti-lock, which can improve the convenience and safety of user use.

[0058] In some embodiments, the induction device 80 includes a trigger inclined tongue 81, a sensor 82, and an elastic member 83. The lock housing 10 is further provided with a second tongue hole 12. The second tongue hole 12 is spaced from the first tongue hole 11. The trigger inclined tongue 81 is movably installed in the second tongue hole 12 and has a first position extending out of the second tongue hole 12 and a second position retracted into the second tongue hole 12. The elastic member 83 has an elastic deformation that drives the trigger inclined tongue 81 to move to the first position. The sensor 82 is disposed in the lock housing 10. When the trigger inclined tongue 81 moves to the second position, the sensor 82 is triggered. Specifically, when the door is opened, under the action of the elastic member 83, the trigger inclined tongue 81 extends out of the second tongue hole 12. When the door is closed, as the door body gradually fits into the door frame, the trigger inclined tongue 81 is abutted by the door frame and retracted into the second tongue hole 12. When the trigger inclined tongue 81 moves to the second position, that is, when the door body is completely closed, at this time, the anti-lock tongue 20 and the cross inclined tongue respectively correspond to the lock holes on the door frame. At the same time, the trigger inclined tongue 81 triggers the sensor 82, and the sensor 82 sends an electrical signal to the electric control device. When the electric control device receives the electrical signal sent by the induction device 80, it controls the drive motor 30 to drive the square tongue 22 of the anti-lock tongue 20 to extend out of the first tongue hole 11, so that the square tongue 22 extends into the corresponding lock hole of the door frame. Such a structure is simple and reliable, and the sensor 82 is located in the lock housing 10, avoiding the situation of being knocked and damaged. Among them, the elastic member 83 can be a spring or an elastic body, etc. The sensor 82 can be a micro switch, a Hall switch, an optical switch, etc. In addition, in other embodiments, the induction device 80 can also use a Hall switch or an infrared sensor to detect the position relationship between the door body and the door frame, etc.

[0059] The above are only the preferred embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structural transformation made under the inventive concept of the present utility model by using the content of the specification and drawings of the present utility model, or any direct / indirect application in other related technical fields shall be included within the patent protection scope of the present utility model.

Claims

1. A lock body, characterized in that: include: The lock housing is provided with a plurality of first tongue holes; The anti-locking tongue comprises a mounting plate and at least two square tongues connected to one end of the mounting plate, wherein the square tongues are arranged in sequence and spaced apart, and each square tongue is correspondingly mounted in one of the first tongue holes; an avoidance notch is provided on one side of the mounting plate, and a rack portion extending along the movement direction of the anti-locking tongue is provided in the avoidance notch; A driving motor is disposed in the lock housing and is drivingly connected to the rack portion; and The handle seat is rotatably mounted on the lock housing and is transmission-connected with the rack portion.

2. The lock body according to claim 1, characterized in that: The lock body also includes a transmission gear, which is rotatably mounted on the lock housing and meshes with the rack portion, and the drive motor and the handle seat are both transmission-connected to the transmission gear.

3. The lock body according to claim 2, characterized in that: The handle seat is provided with a first gear, which is meshed with the transmission gear and spaced apart from the mounting plate in the axial direction of the handle seat.

4. The lock body according to claim 3, characterized in that: A side of the mounting plate facing the first gear is provided with an avoidance groove, and the first gear is located at the avoidance groove.

5. The lock body according to claim 2, characterized in that: The mounting plate is provided with an avoidance hole, the handle seat is penetrated through the avoidance hole, the size of the avoidance hole along the movement direction of the anti-locking tongue is larger than the diameter of the corresponding part of the handle seat; and / or the drive motor is located on the side of the transmission gear away from the handle seat.

6. The lock body according to claim 1, characterized in that: The mounting plate is provided with at least two sliding protrusions, and the lock housing is provided with a sliding groove corresponding to each of the sliding protrusions. The sliding groove extends along the movement direction of the anti-locking tongue, and the sliding protrusion is slidably installed in the sliding groove.

7. The lock body according to claim 6, characterized in that: At least two of the sliding protrusions are arranged at intervals in the arrangement direction of two adjacent square tongues; The mounting plate has a first side surface and a second side surface opposite to each other, and the first side surface and the second side surface are both provided with the sliding protrusion.

8. The lock body according to claim 7, characterized in that: Two sliding protrusions are provided on the first side surface close to the square tongue, and the two sliding protrusions on the first side surface are spaced apart in the arrangement direction of two adjacent square tongues; at least one sliding protrusion is provided on the second side surface away from the square tongue, and the sliding protrusion on the second side surface is located between the two sliding protrusions on the first side surface in the arrangement direction of two adjacent square tongues.

9. The lock body according to any one of claims 1 to 8, characterized in that: The mounting plate is provided with a mounting groove, the mounting groove passes through the side surface of the mounting plate away from the rack portion, and the side wall of the mounting groove away from the square tongue forms an abutment portion. The lock body also includes a lock core mechanism, the lock core mechanism is arranged on the side of the mounting plate away from the rack portion, and has a toggle member extending to the mounting groove, the toggle member is located on the side of the abutment portion facing the square tongue, so that when the toggle member is moved by a key, the toggle member can push the abutment portion, thereby retracting the square tongue into the first tongue hole.

10. The lock body according to any one of claims 1 to 8, characterized in that: The lock body also includes an electric control device and a sensing device, wherein the sensing device is disposed on the lock shell, and the sensing device and the drive motor are both electrically connected to the electric control device, and the sensing device is configured to be triggered when the door is closed, and the electric control device is configured to control the drive motor to drive the square tongue of the anti-lock tongue to extend out of the first tongue hole when the sensing device is triggered.

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