Cabinet lock

Abstract

The utility model relates to the technical field of locks, in particular to a cabinet lock which comprises a lock body, and a clutch rod, a mounting seat, a first rotating core and a second rotating core are arranged in the lock body. One end of the second rotating core is connected to the mounting seat and is fixedly provided with a second spring bolt, the other end is provided with a first groove, and the groove wall of the first groove is provided with a through hole; the mounting seat is provided with an abutting wall, and an insertion hole is formed in the abutting wall; one end of the first rotating core is connected to the mounting seat and provided with a handle, the other end is connected to the first groove, and the first rotating core is provided with a blind hole; the clutch rod is simultaneously inserted into the through hole and the insertion hole; an elastic propping group is arranged in the blind hole; and an unlocking device is fixed on the mounting seat. After the technical scheme is adopted, after locking, the first rotating core is in a rotatable state and is not restrained by an internal structure, and therefore the situation that the internal structure of the lock body deforms due to the fact that the handle is forcefully twisted can be avoided.

Description

Technical Field

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

[0002] The cabinet is an indispensable component of electrical equipment, a carrier of electrical control equipment, and an independent or self-supporting housing for accommodating electrical equipment. Usually, a cabinet lock is installed on the cabinet door to protect the contents inside the cabinet, especially for cabinets installed outdoors, which are generally equipped with a management backend system. Existing cabinet locks are often unlocked by turning the shaft with a handle and then driving the lock tongue to work together. The cabinet lock is also equipped with a locking mechanism that limits the rotation of the shaft. The locking mechanism needs to be released before the shaft is rotated; after locking, the shaft is restricted by the locking mechanism.

[0003] The cabinet locks commonly used in the market now cannot be opened under normal circumstances when the lock is in the locked state. That is, if the locking mechanism is not released, if there is an intentional or unintentional situation, such as when the handle is hit or someone twists it forcefully by mistake, the internal structure of the lock body will be deformed, resulting in the need to replace the lock.

[0004] In view of this, the applicant conducted an in-depth study on the above-mentioned issues, which led to the present case. Utility Model Content

[0005] The utility model aims to provide a cabinet lock which can prevent the internal structure of the lock body from being deformed due to strong twisting of the handle.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A cabinet lock, wherein a clutch rod, a mounting seat, and a first rotating core and a second rotating core arranged coaxially are arranged inside the lock body; the mounting seat is fixed on the lock body; one end of the second rotating core is rotatably connected to the mounting seat, and the other end is provided with a first groove, and the groove wall of the first groove is provided with a through hole; the mounting seat has a top wall arranged around the first groove, and the top wall is provided with an insertion hole; one end of the first rotating core is rotatably connected to the mounting seat, and the other end is rotatably connected to the first groove, and the side wall of the first rotating core is provided with a blind hole; the blind hole, the through hole and the insertion hole are located on the same plane, and one end of the insertion hole faces the first rotating core; the rod length of the clutch rod is greater than the hole length of the through hole, and the rod length of the clutch rod is less than the sum of the hole depths of the blind hole and the insertion hole; a handle is installed at one end of the first rotating core connected to the mounting seat; a second lock tongue is fixed at one end of the second rotating core connected to the mounting seat; an elastic top group is arranged in the blind hole; an unlocking device for driving the clutch rod to move in the direction of the first rotating core is fixed to the mounting seat;

[0008] In the locked state, the clutch rod is only inserted through the through hole and the jack at the same time. One end of the elastic abutting group abuts against or is connected to the bottom of the blind hole, and the other end abuts against the wall of the first groove or the clutch rod. In the unlocked state, the clutch rod is only inserted through the through hole and the blind hole at the same time. One end of the clutch rod abuts against the elastic abutting group, and the other end abuts against the abutting wall or the unlocking device. One end of the elastic abutting group abuts against or is connected to the bottom of the blind hole, and the other end abuts against the clutch rod.

[0009] Preferably, the unlocking device includes a clutch top block and a driving mechanism. The mounting seat is provided with a sliding cavity that cooperates with the clutch top block. The sliding cavity and the unlocking device are both located on the side of the jack away from the first rotating core. The clutch top block is located between the driving mechanism and the jack; the driving mechanism is installed on the mounting seat, and the clutch top block is slidably connected to the sliding cavity;

[0010] In the locked state, one end of the clutch top block abuts against the clutch rod, and the other end abuts against the driving mechanism. In the unlocked state, the clutch top block abuts against the driving mechanism and the sliding cavity at the same time.

[0011] Preferably, the driving mechanism includes a driving motor, a threaded rod, a nut, and a compression spring. The driving motor is fixed to the mounting seat. The threaded rod is located between the driving motor and the clutch top block. One end of the threaded rod has a smooth section, and the other end is fixed to the output shaft of the driving motor. The smooth section of the threaded rod is slidably connected to the clutch top block; the nut is helically connected to the threaded rod and is slidably connected to the mounting seat. The compression spring is sleeved on the threaded rod and is located between the clutch top block and the nut. One end of the compression spring abuts against the clutch top block, and the other end abuts against the nut.

[0012] Preferably, the driving mechanism further includes a transmission plate. The transmission plate is sleeved on the threaded rod and is slidably connected to the mounting seat. The transmission plate is located between the nut and the compression spring. The compression spring indirectly abuts against the nut by abutting against the transmission plate.

[0013] Preferably, the driving mechanism includes a threaded rod, a compression spring, a transmission plate, and a lock core and a key that are matched with each other.

[0014] The lock core and the threaded rod are both installed in the lock body. The threaded rod is located between the lock core and the clutch top block. One end of the threaded rod has a smooth section, and the smooth section of the threaded rod is slidably connected to the clutch top block. The compression spring and the transmission plate are both sleeved on the threaded rod. The transmission plate is slidably connected to the mounting seat. One end of the compression spring abuts against the clutch top block, and the other end abuts against the transmission plate.

[0015] A push plate for pushing the transmission plate to move towards the clutch top block is also slidably connected in the lock body. The transmission plate is located between the lock core and the jack. One end of the push plate abuts against the lock tongue of the lock core, and the other end is provided with an abutting wing. The abutting wing is located on the side of the transmission plate away from the jack. The abutting wing abuts against the transmission plate.

[0016] Preferably, a control module is also installed in the lock body. The control module includes at least one of a fingerprint control module, a button module, a card reading module, and a communication module.

[0017] Preferably, the driving mechanism includes a lock core and a key that are matched with each other. The lock core is installed in the lock body.

[0018] The control module also includes a control circuit board. The lock core is provided with a first contact pin and a second contact pin that are electrically connected to the control circuit board. The key is provided with a power source, a first contact piece that cooperates with the first contact pin, a second contact piece that cooperates with the second contact pin, and a control chip that is electrically connected to the second contact piece. The control chip and the second contact piece are both electrically connected to the power source.

[0019] Preferably, a warning module with a communication function is also installed in the lock body. A positioning port is opened on the push plate, and a sensor that cooperates with the positioning port is fixed in the lock body. The sensor is electrically connected to the warning module.

[0020] Preferably, the elastic abutting group includes a second spring and a rolling ball. One end of the second spring abuts against or is connected to the bottom of the blind hole, and the other end abuts against or is connected to the rolling ball. In the locked state, the rolling ball abuts against the groove wall of the first groove or the clutch rod. In the unlocked state, the rolling ball abuts against the clutch rod.

[0021] Preferably, the first rotating core is provided with a connecting block. The connecting block is located between the handle and the first rotating core. The connecting block is rotatably connected to the lock body and is coaxially arranged with the first rotating core. One end of the connecting block is installed on the first rotating core, and the other end of the connecting block is rotatably connected to the handle. The handle is indirectly installed on the first rotating core through the rotational connection to the connecting block.

[0022] With the above technical solution, the beneficial effects of the present utility model are as follows:

[0023] By providing a clutch rod, a first rotating core, a second rotating core, an elastic abutting group and an unlocking device inside the lock body, after locking, the clutch rod is pushed out of the blind hole by the elastic abutting group and simultaneously inserted into the through hole and the jacking hole. The first rotating core is in a rotatable state and is not restricted by the internal structure, thereby avoiding the situation where the internal structure of the lock body is deformed due to strong twisting of the handle. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic exploded view of the structure of the cabinet lock of the present utility model;

[0025] Figure 2 It is a schematic cross-sectional structure view of the cabinet lock of the present utility model;

[0026] Figure 3 It is a schematic structure view of the push plate of the present utility model;

[0027] Figure 4 It is a schematic assembly structure view of the first rotating core and the second rotating core of the present utility model.

[0028] In the figure:

[0029] 10 - mounting base; 10a - bottom plate;

[0030] 10b - cover plate;

[0031] 12 - clutch top block; 13 - drive motor;

[0032] 14 - nut; 15 - compression spring;

[0033] 16 - threaded rod; 17 - transmission plate;

[0034] 18 - lock core; 19 - push plate;

[0035] 19a - positioning port; 20 - first rotating core;

[0036] 22 - clutch rod; 23 - handle;

[0037] 24 - connecting block;

[0038] 30 - second rotating core;

[0039] 32 - second spring; 33 - ball;

[0040] 99 - lock body. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0041] In order to make the objectives, technical solutions and advantages of the present utility model more clear and understandable, the following further details the present utility model in conjunction with embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0042] As Figures 1 to 4 shown, this embodiment provides a cabinet lock, which has locking and unlocking states. For the convenience of description, the case where the cabinet lock is in the locked state is taken as an example for description. The cabinet lock includes a lock body 99, and a clutch rod 22, a mounting seat 10, a first core 20 and a second core 30 are arranged inside the lock body 99. The first core 20 and the second core 30 are coaxially arranged; the mounting seat 10 is fixed on the lock body 99; the mounting seat 10 includes a bottom plate 10a and a cover plate 10b. The bottom plate 10a is fixed on the lock body 99, and the cover plate 10b is locked to the bottom plate 10a by screws.

[0043] Both the first core 20 and the second core 30 are mounted on the mounting seat 10. In this embodiment, both the first core 20 and the second core 30 are located between the bottom plate 10a and the cover plate 10b. One end of the second core 30 is close to the cover plate 10b, and the other end is far from the cover plate 10b; the end of the second core 30 far from the cover plate 10b is rotatably connected to the bottom plate 10a, and a second locking tongue (not shown in the figure) is fixed to the end of the second core 30 connected to the bottom plate 10a. A first groove is provided at the end of the second core 30 close to the cover plate 10b, and a through hole is provided on the groove wall of the first groove. The through hole is perpendicularly arranged to the second core 30. One end of the first core 20 is close to the bottom plate 10a, and the other end is far from the bottom plate 10a; the end of the first core 20 far from the bottom plate 10a is rotatably connected to the cover plate 10b, the end of the first core 20 close to the bottom plate 10a is rotatably connected to the first groove, and a blind hole is provided on the side wall of the first core 20.

[0044] A handle 23 is rotatably connected to the end of the first core 20 connected to the cover plate 10b. In this embodiment, the first core 20 is provided with a connecting block 24. The connecting block 24 is located between the handle 23 and the first core 20. The connecting block 24 is rotatably connected to the lock body 99 and is coaxially arranged with the first core 20. One end of the connecting block 24 is mounted on the first core 20, and the other end of the connecting block 24 is rotatably connected to the handle 23. The handle 23 is indirectly mounted on the first core 20 by being rotatably connected to the connecting block 24.

[0045] The connection structure between the connecting block 24 and the handle 23 is: the connecting block 24 and the handle 23 are respectively provided with corresponding rotation holes, the axis of the rotation holes is perpendicularly arranged to the axis of the first core 20, and the same rotation rod is inserted between the two corresponding rotation holes. By providing the handle 23, a gripping point convenient for applying force is provided, so that the user can easily rotate the first core 20.

[0046] The cover plate 10b has an abutting wall disposed around the first groove, and a jack is formed in the abutting wall.

[0047] The blind hole, the through hole and the jack are in the same plane, and one end of the jack faces the first rotating core. The rod length of the clutch lever 22 is greater than the hole length of the through hole, and the rod length of the clutch lever 22 is less than the sum of the hole depths of the blind hole and the jack.

[0048] An elastic abutting group is disposed in the blind hole. The elastic abutting group includes a second spring 32 and a rolling ball 33. One end of the second spring 32 abuts against or is connected to the bottom of the blind hole, and the other end abuts against or is connected to the rolling ball 33. In this embodiment, the second spring 32 abuts against both the bottom of the blind hole and the rolling ball 33. The mounting base 10 is fixed with an unlocking device for driving the clutch lever 22 to move towards the first rotating core 20.

[0049] Let the plane where the blind hole, the through hole and the jack are located be the reference plane, and the intersection point of the axis of the first rotating core 20 and the reference plane be the reference point; the ray extending from the reference point towards the blind hole is the blind hole position ray; the ray extending from the reference point towards the through hole is the through hole position ray; let the included angle between the through hole position ray and the blind hole position ray be the first included angle.

[0050] It should be noted that in the locked state, the mouth of the blind hole can be arranged opposite to the through hole, and at this time the first included angle is zero, or the value of the first included angle is a preset angle, 0 < preset angle ≤ 180°. When the included angle between the axis of the blind hole and the axis of the through hole is the preset angle, after the first rotating core 20 rotates by the corresponding preset angle, the first included angle becomes zero, and the position of the mouth of the blind hole is opposite to that of the through hole. In this embodiment, the case where the value of the first included angle in the locked state is the preset angle is taken as an example for description.

[0051] The clutch rod 22 is only inserted through the through hole and the jack hole simultaneously. It should be noted that the clutch rod 22 being only inserted through the through hole and the jack hole simultaneously means the situation where the clutch rod 22 is not inserted into the blind hole. If there are other holes provided between the through hole and the jack hole, it can also be inserted through that hole simultaneously; the rolling ball 33 abuts against the second spring 32 and the wall of the first groove at the same time. At this time, the first rotating core 20 rotates and drives the blind hole to rotate around the axis of the first rotating core 20. When the first rotating core 20 rotates to a position where the mouth of the blind hole is opposite to the through hole, the rolling ball 33 abuts against the second spring 32 and the clutch rod 22 at the same time, and the second rotating core 30 cannot rotate due to the obstruction of the clutch rod 22; when it is necessary to change the locked state to the unlocked state, rotate the first rotating core 20 so that the mouth of the blind hole is opposite to the through hole, and then the unlocking device pushes the clutch rod 22 into the blind hole. After the clutch rod 22 is only inserted through the through hole and the blind hole simultaneously, it should be noted that the clutch rod 22 being only inserted through the through hole and the blind hole simultaneously means the situation where the clutch rod 22 is not inserted into the jack hole. If there are other holes provided between the through hole and the blind hole, it can also be inserted through that hole simultaneously. The cabinet lock is then in the unlocked state. At this time, one end of the clutch rod 22 abuts against the rolling ball 33, and the other end abuts against the unlocking device, and the first rotating core 20 can drive the second lock core 30 to rotate. When the first rotating core 20 rotates by a certain angle, one end of the clutch rod 22 abuts against the rolling ball 33, and the other end abuts against the abutting wall.

[0052] The unlocking device includes a clutch top block 12 and a driving mechanism. A sliding cavity cooperating with the clutch top block 12 is provided between the bottom plate 10a and the cover plate 10b. The sliding cavity and the unlocking device are both located on the side of the jack away from the first rotating core 20. The clutch top block 12 is located between the driving mechanism and the jack. The driving mechanism is installed on the mounting seat 10. The clutch top block 12 is slidably connected to the sliding cavity. One end of the clutch top block 12 abuts against the clutch rod 22, and the other end abuts against the driving mechanism. When unlocking is required, the driving mechanism pushes the clutch top block 12 towards the first rotating core 20. Specifically, the driving mechanism is located between the bottom plate 10a and the cover plate 10b. The driving mechanism includes a driving motor 13, a threaded rod 16, a nut 14 and a compression spring 15. The threaded rod 16 is located between the driving motor 13 and the clutch top block 12. One end of the threaded rod 16 has a smooth section, and the other end is fixed to the output shaft of the driving motor 13. The clutch top block 12 is provided with a rotating hole matching the smooth section of the threaded rod 16. The smooth section of the threaded rod 16 is slidably connected in the rotating hole. The driving motor 13 is fixed to the bottom plate 10a. The nut 14 is screwed onto the threaded rod 16. One side of the nut 14 is slidably connected to the bottom plate 10a, and the other side is slidably connected to the cover plate 10b. The compression spring 15 is sleeved on the threaded rod 16 and is located between the clutch top block 12 and the nut 14. One end of the compression spring 15 abuts against the clutch top block 12, and the other end abuts against the nut 14. The driving motor 13 drives the threaded rod 16 to rotate, driving the nut 14 to move on the threaded rod 16. When the nut 14 moves towards the clutch top block 12, the nut 14 pushes the compression spring 15 towards the clutch top block 12, and the compression spring 15 pushes the clutch top block 12 towards the jack.

[0053] The driving motor 13 drives the threaded rod 16 to rotate, thereby driving the nut 14 to move along the axial direction of the threaded rod 16. For the convenience of description, it is assumed that when the driving motor 13 rotates forward, the nut 14 moves away from the driving motor 13, and when the driving motor 13 rotates in reverse, the nut 14 moves towards the driving motor 13.

[0054] The driving mechanism further includes a transmission plate 17. The transmission plate 17 is sleeved on the threaded rod 16 and is slidably connected to the mounting seat 10. Specifically, the transmission plate 17 is provided with a sleeving hole with a diameter larger than the outer diameter of the threaded rod 16. The sleeving hole of the transmission plate 17 is sleeved on the threaded rod 16. One side of the transmission plate 17 is slidably connected to the bottom plate 10a, and the other side is slidably connected to the cover plate 10b. The transmission plate 17 is located between the nut 14 and the compression spring 15. The compression spring 15 indirectly abuts against the nut 14 by abutting against the transmission plate 17. When the driving motor 13 rotates forward, the nut 14 moves towards the clutch top block 12, and the nut 14 indirectly pushes the compression spring 15 towards the clutch top block 12 through the transmission plate 17. The setting of the transmission plate 17 can prevent the nut 14 from driving the compression spring 15 to rotate when the nut 14 rotates, thereby avoiding the rotational wear of the compression spring 15 on the clutch top block 12.

[0055] In this embodiment, the driving mechanism further includes a lock core 18 and a key (not shown in the figure) that are matched with each other. The lock core 18 is installed in the lock body 99, and a push plate 19 is also slidably connected in the lock body 99. The transmission plate 17 is located between the lock core 18 and the jack. Specifically, a guide rail parallel to the threaded rod 16 is provided on the bottom plate 10a. The guide rail is located between the bottom plate 10a and the threaded rod 16. The push plate 19 is slidably connected to the guide rail. One end of the push plate 19 is close to the lock core 18, and the other end is far from the lock core 18. The end of the push plate 19 close to the lock core 18 has an expansion head, and an abutting wing is provided at the end of the push plate 19 far from the lock core 18. The expansion head of the push plate 19 abuts against the lock tongue of the lock core 18. The abutting wing of the push plate 19 is located on the side of the transmission plate 17 far from the jack, and the abutting wing abuts against the transmission plate 19. When unlocking is required, the matching key is used to rotate the lock core 18. The lock tongue of the lock core 18 rotates to push the expansion head and push the push plate 19 in the direction of the clutch top block 12. Then, the abutting wing pushes the transmission plate 17 in the direction of the clutch top block. Immediately afterwards, the transmission plate 17 pushes the clutch top block 12 in the direction of the jack through the compression spring 15, and the clutch top block 12 abuts the clutch rod 22 against the outer wall of the first rotating core 20. Then, the first rotating core 20 is rotated by means of the handle 23. Until the mouth of the blind hole is opposite to the through hole, the clutch rod 22 first abuts against the ball 33 and gradually presses the ball 33 towards the bottom of the blind hole until the clutch rod 22 is completely pushed out of the jack by the clutch top block 12, it is in the unlocked state. At this time, the clutch top block 12 abuts against the compression spring 15 and the sliding cavity at the same time, and the clutch rod 22 only penetrates through the through hole and the blind hole at the same time. The first rotating core 20 is rotated again by means of the handle 23. The first rotating core 20 drives the second rotating core 30 to rotate through the clutch rod 22, and the second lock tongue rotates along with the rotation of the second rotating core 30, so that the cabinet door can be opened.

[0056] It should be noted that it is also possible to first rotate the first rotating core 20 so that the mouth of the blind hole is opposite to the through hole, and then rotate the lock core 18. When the clutch rod 22 only penetrates through the through hole and the blind hole at the same time, the first rotating core 20 is rotated by means of the handle 23. The first rotating core 20 drives the second rotating core 30 to rotate through the clutch rod 22, and the second lock tongue rotates along with the rotation of the second rotating core 30, so that the cabinet door can be opened.

[0057] A control module is also installed in the lock body 99. The control module includes at least one of a fingerprint control module, a button module, a card reading module, and a communication module. The control module may also include a security module. In this embodiment, the control module further includes a control circuit board.

[0058] The lock core 18 is provided with a first contact pin and a second contact pin electrically connected to the control circuit board; the key is provided with a power source, a first contact piece matched with the first contact pin, a second contact piece matched with the second contact pin, and a control chip electrically connected to the second contact piece. The control chip and the second contact piece are both electrically connected to the power source.

[0059] When unlocking is required, insert the key into the lock core 18 to power on the control module, and then send a forward rotation command to the drive mechanism through the control chip on the key, causing the drive motor 13 to rotate forward and drive the nut 14 to move in the direction of the clutch top block 12. The nut 14 indirectly pushes the clutch top block 12 towards the jack through the transmission plate 17 and the compression spring 15. The clutch top block 12 presses the clutch rod 22 against the outer wall of the first rotating core 20. Then, rotate the first rotating core 20 with the handle 23 until the mouth of the blind hole is aligned with the through hole. The clutch rod 22 first abuts against the ball 33 and gradually presses the ball 33 towards the bottom of the blind hole until the clutch rod 22 is completely pushed out of the jack by the clutch top block 12. At this time, it is in the unlocked state. At this time, the drive motor 13 stops rotating, the clutch top block 12 abuts against the compression spring 15 and the sliding cavity at the same time, and the clutch rod 22 only penetrates through the through hole and the blind hole at the same time. Rotate the first rotating core 20 again with the handle 23. The first rotating core 20 drives the second rotating core 30 to rotate through the clutch rod 22, and the second lock tongue rotates with the rotation of the second rotating core 30, so that the cabinet door can be opened.

[0060] It should be noted that it is also possible to first rotate the first rotating core 20 so that the mouth of the blind hole is aligned with the through hole, and then send a forward rotation command to the drive mechanism through the control chip on the key. The drive motor 13 rotates forward, then the nut 14 pushes the clutch top block 12 towards the jack through the compression spring 15, and then abuts against the clutch rod 22. The clutch rod 22 first abuts against the ball 33 and gradually presses the ball 33 towards the bottom of the blind hole until the clutch rod 22 is completely pushed out of the jack by the clutch top block 12. At this time, the drive motor 13 stops rotating, and the clutch rod 22 only penetrates through the through hole and the blind hole at the same time. Rotate the first rotating core 20 with the handle 23. The first rotating core 20 drives the second rotating core 30 to rotate through the clutch rod 22, and the second lock tongue rotates with the rotation of the second rotating core 30, so that the cabinet door can be opened.

[0061] After opening the cabinet door, reset the handle 23, and the value of the angle between the axis of the blind hole and the axis of the through hole returns to the preset angle again.

[0062] When locking is required, first close the cabinet door. At this time, the clutch rod 22 abuts against the abutting wall. Rotate the first rotating core 20 by means of the handle 23. When the jack hole is opposite to the through hole, the clutch rod 22 separates from the abutting wall and abuts against the clutch abutting block 12. At this time, a reverse instruction is sent to the driving mechanism through the control chip on the key, and the driving motor 13 rotates in reverse. The nut 14 moves in the direction close to the driving motor 13, and the second spring 32 and the ball 33 in the blind hole gradually push the clutch rod 22 out of the blind hole; when the clutch rod 22 is completely pushed out of the blind hole, the driving motor 13 stops rotating, and the clutch rod 22 only penetrates through the through hole and the jack hole at the same time. At this time, it is in the locked state. Pull out the key, and the handle 23 can be reset. The first rotating core 20 enters the idle state, and the first rotating core 20 can be freely rotated by means of the handle 23, while the second rotating core 30 cannot rotate.

[0063] Furthermore, a warning module with communication function is also installed in the lock body 99. The warning module is used to transmit information to the user's background terminal; a positioning port 19a is opened on the pushing plate 19, and a sensor (not shown in the figure) matching the positioning port 19a is fixed in the lock body 99. The sensor is electrically connected to the warning module. The sensor can be a photoelectric sensor or an infrared sensor. In this embodiment, the sensor is taken as an example of an infrared sensor for illustration. The infrared sensor is located on one side of the positioning port 19a and fixed on the bottom plate 10a. The infrared sensor emits infrared light in the direction of the positioning port 19a. When the lock core 18 is rotated by the matching key to drive the pushing plate 19 to move, the infrared light emitted by the infrared sensor shines outside the positioning port 19a. At this time, the infrared sensor can detect that the pushing plate 19 is not in place, and feedback the data to the warning module and then to the user's background terminal, which is beneficial for the user to timely confirm the closing condition of the cabinet lock and improve the safety performance of the cabinet lock.

[0064] By setting the positioning port 19a and the sensor matching the positioning port 19a, it is used to monitor the state of the pushing plate 19, and then monitor the opening and closing states of the lock core 18.

[0065] It should be noted that in this embodiment, the driving mechanism includes a mutually supporting lock core 18 and key, a driving motor 13, a threaded rod 16, a nut 14, a compression spring 15 and a transmission plate 17 as an example for illustration.

[0066] Only one of the driving motor 13 and the mutually supporting lock core 18 and key can also be set. For example, the driving mechanism includes a driving motor 13, a threaded rod 16, a nut 14, a compression spring 15 and a transmission plate 17, or the driving mechanism includes a threaded rod 16, a nut 14, a compression spring 15, a transmission plate 17 and a mutually supporting lock core 18 and key; it can also be that the driving mechanism includes a driving motor 13, a threaded rod 16, a nut 14 and a compression spring 15.

[0067] By arranging a clutch rod, a first rotating core, a second rotating core, an elastic abutting group and an unlocking device inside the lock body 99, after locking, the clutch rod 22 is pushed out of the blind hole by the elastic abutting group and simultaneously inserted into the through hole and the jack, and the first rotating core 20 is in a rotatable state without being restricted by the internal structure, so as to avoid the situation that the internal structure of the lock body 99 is deformed due to strong twisting of the handle 23.

[0068] The above has made a detailed description of the present utility model in conjunction with the accompanying drawings. However, the implementation manners of the present utility model are not limited to the above implementation manners. Those skilled in the art can make various deformations to the present utility model according to the prior art, and these all belong to the protection scope of the present utility model.

Claims

1. A cabinet lock, comprising a lock body, characterized in that: Inside the lock body, a clutch rod, a mounting seat, and a first rotating core and a second rotating core arranged coaxially are provided; The mounting seat is fixed to the lock body; one end of the second rotating core is rotatably connected to the mounting seat, and the other end is provided with a first groove, and through holes are provided on the groove wall of the first groove; the mounting seat has an abutting wall arranged around the first groove, and a jack is provided on the abutting wall; one end of the first rotating core is rotatably connected to the mounting seat, and the other end is rotatably connected to the first groove, and a blind hole is provided on the side wall of the first rotating core; the blind hole, the through hole, and the jack are located on the same plane, and one end of the jack faces the first rotating core; The rod length of the clutch rod is greater than the hole length of the through hole, and the rod length of the clutch rod is less than the sum of the hole depths of the blind hole and the jack; a handle is installed at one end of the first rotating core connected to the mounting seat; a second lock tongue is fixed at one end of the second rotating core connected to the mounting seat; an elastic abutting group is arranged in the blind hole; an unlocking device for driving the clutch rod to move towards the first rotating core is fixed to the mounting seat; In the locked state, the clutch rod only penetrates through the through hole and the jack at the same time, one end of the elastic abutting group abuts against or is connected to the bottom of the blind hole, and the other end abuts against the groove wall of the first groove or the clutch rod. In the unlocked state, the clutch rod only penetrates through the through hole and the blind hole at the same time, one end of the clutch rod abuts against the elastic abutting group, the other end abuts against the abutting wall or the unlocking device, and one end of the elastic abutting group abuts against or is connected to the bottom of the blind hole, and the other end abuts against the clutch rod.

2. The cabinet lock according to claim 1, characterized in that: The unlocking device includes a clutch top block and a driving mechanism. The mounting seat is provided with a sliding cavity that cooperates with the clutch top block. The sliding cavity and the unlocking device are both located on the side of the jack away from the first rotating core. The clutch top block is located between the driving mechanism and the jack; the driving mechanism is installed on the mounting seat, and the clutch top block is slidably connected to the sliding cavity; In the locked state, one end of the clutch top block abuts against the clutch rod, and the other end abuts against the driving mechanism. In the unlocked state, the clutch top block abuts against the driving mechanism and the sliding cavity at the same time.

3. The cabinet lock according to claim 2, wherein: The driving mechanism includes a driving motor, a threaded rod, a nut, and a compression spring. The driving motor is fixed to the mounting seat. The threaded rod is located between the driving motor and the clutch top block. One end of the threaded rod has a smooth section, and the other end is fixed to the output shaft of the driving motor. The smooth section of the threaded rod is slidably connected to the clutch top block; the nut is helically connected to the threaded rod and is slidably connected to the mounting seat. The compression spring is sleeved on the threaded rod and is located between the clutch top block and the nut. One end of the compression spring abuts against the clutch top block, and the other end abuts against the nut.

4. The cabinet lock according to claim 3, wherein: The driving mechanism further includes a transmission plate sleeved on the threaded rod and slidably connected to the mounting seat. The transmission plate is located between the nut and the compression spring, and the compression spring indirectly abuts against the nut by abutting against the transmission plate.

5. The cabinet lock according to claim 2, wherein: The driving mechanism includes a threaded rod, a compression spring, a transmission plate, and a lock core and a key that are matched with each other. Both the lock core and the threaded rod are installed in the lock body. The threaded rod is located between the lock core and the clutch top block. One end of the threaded rod has a smooth section, and the smooth section of the threaded rod is slidably connected to the clutch top block. Both the compression spring and the transmission plate are sleeved on the threaded rod. The transmission plate is slidably connected to the mounting seat. One end of the compression spring abuts against the clutch top block, and the other end abuts against the transmission plate. A push plate for pushing the transmission plate to move in the direction of the clutch top block is also slidably connected in the lock body. The transmission plate is located between the lock core and the insertion hole. One end of the push plate abuts against the lock tongue of the lock core, and the other end is provided with an abutting wing located on the side of the transmission plate away from the insertion hole. The abutting wing abuts against the transmission plate.

6. The cabinet lock according to claim 4, characterized in that: A control module is also installed in the lock body, and the control module includes at least one of a fingerprint control module, a button module, a card reading module, and a communication module.

7. The cabinet lock according to claim 6, characterized in that: The driving mechanism includes a lock core and a key that are matched with each other, and the lock core is installed in the lock body. The control module further includes a control circuit board. The lock core is provided with a first contact pin and a second contact pin electrically connected to the control circuit board. The key is provided with a power source, a first contact piece matched with the first contact pin, a second contact piece matched with the second contact pin, and a control chip electrically connected to the second contact piece. Both the control chip and the second contact piece are electrically connected to the power source.

8. The cabinet lock according to claim 5, wherein: A warning module with a communication function is also installed in the lock body. A positioning hole is formed in the push plate, and a sensor matched with the positioning hole is fixed in the lock body. The sensor is electrically connected to the warning module.

9. The cabinet lock according to claim 1, characterized in that: The elastic abutting group includes a second spring and a rolling ball. One end of the second spring abuts against or is connected to the bottom of the blind hole, and the other end abuts against or is connected to the rolling ball. In the locked state, the rolling ball abuts against the groove wall of the first groove or the clutch rod. In the unlocked state, the rolling ball abuts against the clutch rod.

10. A cabinet lock as claimed in claim 1, wherein: The first rotating core is provided with a connecting block located between the door handle and the first rotating core. The connecting block is rotatably connected to the lock body and coaxially arranged with the first rotating core. One end of the connecting block is installed on the first rotating core, and the other end of the connecting block is rotatably connected to the door handle. The door handle is indirectly installed on the first rotating core by being rotatably connected to the connecting block.

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