A magnetic lock body

Abstract

The invention discloses a magnetic lock body, comprising a lock tongue, a lock body, a square core sleeve and a locking driver, wherein the square core sleeve is rotatably mounted on the lock body, a locking member is rotatably mounted between the lock tongue and the square core sleeve, a first lock hook and a first stopper are provided on the locking member, a second lock hook matched with the first lock hook is provided on the lock tongue, a second stopper matched with the first stopper is provided on the square core sleeve, a locking driver is slidably mounted on the lock body, and a driving rotation mechanism is provided between the locking driver and the locking member. The invention can effectively avoid the problem that people accidentally lock the lock tongue out when the door is open or children lock the lock tongue out when playing; and the invention has a simple structure, is easy to assemble and manufacture, has a more stable and reliable transmission, is not easy to get stuck and damaged after long-term use, and prolongs the service life of the lock.

Description

Technical Field

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

[0002] A door lock is a commonly used door protection device to prevent illegal intrusion, usually including a lock shell; a lock tongue assembly arranged in the lock shell and limited to reciprocating sliding between a lock-out terminal position and a lock-in terminal position along a lock-out direction, and a lock-in and lock-out control mechanism for controlling the reciprocating sliding of the lock tongue assembly. The lock tongue assembly has a lock tongue plate for supporting the lock tongue. With the continuous improvement of protection requirements and the increase of door lock functions, a door lock anti-lock mechanism is added inside the door lock. The door lock anti-lock mechanism is an internal mechanism of the door lock set to improve indoor privacy. The existing anti-lock mechanism has the following problems: When people accidentally lock the lock tongue out when the door is open or when a child locks the lock tongue out when playing, the lock tongue collides with the door frame under the action of wind or the push of the child, causing damage to the lock body.

[0003] A Chinese patent with patent number CN109025510A discloses a magnetic lock body, comprising a lock tongue, a lock body, a lock tongue square core shaft and an anti-locking driving member arranged in the lock body, wherein the upper end of the lock tongue is arranged on a lock hole provided in the lock body, and the end is connected with a push-pull rod, and the lower end of the lock tongue is rotatably arranged on the lock body through a pin shaft; the anti-locking driving member is provided with an anti-locking portion in the direction of the lock tongue; a resisting piece rotatably arranged on the lock body is provided between the anti-locking portion and the lock tongue, one end of the resisting piece is embedded in the lock tongue, and the other end is arranged opposite to the anti-locking portion; when the lock tongue is placed in the lock hole, the resisting piece is in conflict with the anti-locking portion, restricting the anti-locking driving member from moving forward to perform anti-locking, effectively preventing people from accidentally locking the lock tongue out in the state of opening the door or children from locking the lock tongue out when playing, thereby preventing the lock body from being damaged after the lock tongue collides with the door frame under the action of wind or the push of children. The defects of the prior art are that the abutment piece and the linkage piece rotate respectively to reversely lock the lock tongue and the lock tongue square core shaft, the device structure is delicate and complex, the assembly is inconvenient, and the reliability is poor. It is easy to get stuck and damaged after long-term use. Summary of the invention

[0004] The present invention aims to solve the above problems existing in the prior art and provide a magnetic lock body which has a simple structure, high reliability and is not prone to getting stuck or damaged after long-term use.

[0005] The present invention solves the technical problem by adopting the following technical solution: a magnetic lock body, comprising a lock tongue, a lock body, a square core sleeve and a locking driving member, wherein the square core sleeve is rotatably mounted on the lock body, a toggle rod is arranged on the square core sleeve, a first reset torsion spring is arranged between the square core sleeve and the lock body, the lock tongue is movably arranged on a lock hole opened on the side wall of the lock body, the lock tongue can extend out of the lock hole under magnetic drive and be buckled with an external magnetic buckle box, a first reset spring is arranged between the lock tongue and the lock body, and the first reset spring can cause the lock tongue to retract into the lock hole when not subjected to magnetic force; a push-pull rod is arranged at the inner end of the lock tongue, and a toggle rod is arranged on the square core sleeve to rotate the square core sleeve to release the toggle rod. When the shaft sleeve is turned, the toggle rod can drive the push-pull rod to move backward, thereby driving the lock tongue to retract into the lock hole, a locking piece is rotatably installed inside the lock body, a second reset torsion spring is arranged between the locking piece and the lock body, a first lock hook portion and a first stop portion are arranged on the locking piece, a second lock hook portion cooperating with the first lock hook portion is arranged on the lock tongue, a second stop portion cooperating with the first stop portion is arranged on the square core shaft sleeve, the locking driving piece is transversely slidably installed on the lock body, a driving rotation mechanism is arranged between the locking driving piece and the locking piece, and the driving rotation mechanism is used to convert the linear motion of the locking driving piece into the rotation motion of the locking piece;

[0006] When the lock is in the open state, the first lock hook part and the second lock hook part are separated from each other, and the first stop part and the second stop part are separated from each other. At this time, the lock tongue can extend out of the lock hole under the drive of the magnetic force, and can also be retracted into the lock hole under the drive of the square core sleeve;

[0007] When the lock is in a closed state, the lock tongue extends out of the lock hole under the drive of the magnetic force, the first lock hook portion and the second lock hook portion are separated from each other, and the first stop portion and the second stop portion stop each other. At this time, the square core sleeve is restricted from rotating, and the lock tongue cannot be retracted into the lock hole under the drive of the square core sleeve;

[0008] When the lock is in the safety state, the lock tongue is located in the lock hole, the first lock hook portion and the second lock hook portion are engaged with each other, and the first stop portion and the second stop portion stop each other. At this time, the lock tongue is restricted from moving, and the square core sleeve is restricted from rotating. The lock tongue cannot extend out of the lock hole and combine with the magnetic buckle box under magnetic drive.

[0009] The lock member is provided with at least two spaced-apart toggle grooves on the lower side of the lock driving member, and the lock body is provided with mounting holes near the two toggle grooves, and a lock core with a dial wheel is installed on the mounting hole, and a dial handle is provided on the dial wheel. When the dial wheel rotates, the lock driving member can be driven to move left and right through the cooperation of the dial handle and the two toggle grooves; a positioning rack is provided on the upper side of the lock driving member, and a positioning member is provided on the back side of the lock driving member, and the positioning member is vertically slidably installed inside the lock body, and a second return spring is provided between the positioning member and the lock body. A driving plate located behind the two toggle grooves is provided on the lower side of the positioning member, and a buckle ring that is snap-fitted with the positioning rack is provided on the upper side of the positioning member. When the toggle handle is dialed into the toggle groove, the driving plate can be toggled to make the positioning member move up, so as to realize the disengagement of the buckle ring and the positioning rack. When the toggle handle is disengaged from the toggle groove, the second return spring drives the positioning member to move down for reset, so as to realize the buckling of the buckle ring and the positioning rack.

[0010] For further improvement, the locking drive member and the positioning member are both L-shaped structures, the locking drive member is provided with a first horizontal slide groove and a second horizontal slide groove, the positioning member is provided with a first vertical slide groove and a second vertical slide groove, and the inner wall of the lock body is fixedly provided with a first limit slide column, a second limit slide column and a third limit slide column, the first horizontal slide groove and the first vertical slide groove are respectively slidably connected to the first limit slide column and the third limit slide column, and the second horizontal slide groove and the second vertical slide groove are both slidably connected to the second limit slide column.

[0011] To further improve, the driving rotation mechanism is an inclined guide mechanism, including a reset inclined guide surface and a toggle inclined guide surface arranged on the locking drive member, and the locking member is provided with a rotating surface matching the reset inclined guide surface. When the locking drive member moves to the left, the toggle inclined guide surface guides the first stopping portion to move downward, driving the locking member to rotate forward to lock; when the locking drive member moves to the right, under the action of the second reset torsion spring, the rotating surface fits with the reset inclined guide surface, driving the locking member to rotate in the opposite direction to disengage.

[0012] For further improvement, the locking drive member and the second stopping portion are staggered front and back.

[0013] For further improvement, the driving rotation mechanism can also be a gear rack mechanism, including a driving rack and a driving gear meshingly connected to each other, and the driving rack and the driving gear are respectively fixedly arranged on the locking driving member and the locking member.

[0014] For further improvement, the driving rotation mechanism can also be a crank slider mechanism, including a connecting rod and a crank rod, the crank rod is fixedly arranged on the locking member, and the two ends of the connecting rod are respectively hinged to the crank rod and the locking driving member.

[0015] For further improvement, the push-pull rod is provided with a limit transverse groove, both ends of the limit transverse groove are provided with a buffer column, and the inner wall of the lock body is fixedly provided with a limit convex column, and the limit convex column is slidably matched with the limit transverse groove.

[0016] For further improvement, the inner end of the push-pull rod is provided with a protruding sliding seat, and the sliding seat is slidably connected with a hollow transverse groove provided on the lock body.

[0017] For further improvement, a magnetic cover is fixedly mounted on the lock tongue, a trapezoidal guide groove is respectively provided on the upper and lower sides of the magnetic cover, a trapezoidal protrusion is respectively provided on the upper and lower sides of the lock hole, and the trapezoidal protrusion is slidably matched with the trapezoidal guide groove.

[0018] The beneficial effects of the present invention are as follows: when the lock is in the open state, the first lock hook portion and the second lock hook portion are disengaged from each other, and the first stop portion and the second stop portion are disengaged from each other. At this time, the lock tongue can extend out of the lock hole under the drive of the magnetic force, and can also be retracted into the lock hole under the drive of the door handle and the square core shaft sleeve; when the lock tongue extends out of the lock hole under the drive of the magnetic force, the locking drive member is moved to make the first stop portion and the second stop portion stop each other, which can limit the rotation of the square core shaft sleeve and the movement of the lock tongue, realize the normal locking function, and the door handle cannot rotate; in the insurance state, the lock tongue is located in the lock hole, the first lock hook portion and the second lock hook portion are engaged with each other, the first stop portion and the second stop portion stop each other, and the lock tongue is restricted. The invention can effectively prevent people from accidentally locking the lock tongue out of the lock hole when the door is open or children from locking the lock tongue out when playing, thereby preventing the lock body from being damaged by the collision between the lock tongue and the door frame due to the action of wind or the push of children. Compared with the prior art, the invention has a simpler structure, and the first lock hook portion and the first stop portion are centrally arranged on one locking member, so that assembly and manufacturing are more convenient, transmission is more stable and reliable, wear of multiple parts is effectively reduced, transmission accuracy is high, and it is not easy to get stuck or damaged after long-term use, thereby extending the service life of the lock. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of the front structure of the lock in the open state.

[0020] Figure 2 is a schematic diagram of the reverse structure of the lock in the open state.

[0021] FIG3 is a schematic diagram of the structure of the lock in the safe state.

[0022] FIG. 4 is a three-dimensional diagram of the lock in the open state.

[0023] Figure 5 is a three-dimensional view of the back side of the lock body.

[0024] Description of the accompanying drawings: 1. lock tongue, 11. first return spring, 12. push-pull rod, 13. second lock hook, 14. limit transverse groove, 15. buffer column, 16. sliding seat, 17. magnetic cover, 2. lock body, 21. lock hole, 22. mounting hole, 23. first limit slide column, 24. second limit slide column, 25. third limit slide column, 26. limit convex column, 27. hollow transverse groove, 3. square core sleeve, 31. toggle rod, 32. second stopper, 4. locking drive member, 41. toggle groove, 42. positioning rack, 43. first transverse slide groove, 44. second transverse slide groove, 5. locking member, 51. first lock hook, 52. first stopper, 6. Driving rotating mechanism, 61, resetting inclined guide surface, 62, toggling inclined guide surface, 63, rotating surface, 7, positioning member, 71, second resetting spring, 72, driving plate, 73, buckle ring, 74, first vertical slide groove, 75, second vertical slide groove. DETAILED DESCRIPTION

[0025] The present invention will be further described below in conjunction with the accompanying drawings:

[0026] Referring to the accompanying drawings: a magnetic lock body in this embodiment comprises a lock tongue 1, a lock body 2, a square core sleeve 3 and a locking drive member 4, wherein the square core sleeve 3 is rotatably mounted on the lock body 2, a toggle rod 31 is provided on the square core sleeve 3, a first reset torsion spring is provided between the square core sleeve 3 and the lock body 2, the lock tongue 1 is movably arranged on a lock hole 21 provided on the side wall of the lock body 2, the lock tongue 1 can extend out of the lock hole 21 under magnetic drive and be buckled with an external magnetic buckle box, a first reset spring 11 is provided between the lock tongue 1 and the lock body 2, the first reset spring 11 can cause the lock tongue 1 to retract into the lock hole 21 when not subjected to magnetic force; a push-pull rod 12 is provided at the inner end of the lock tongue 1, when the square core sleeve 3 is rotated, the toggle rod 31 can drive the push-pull rod 12 to move backward, thereby driving the lock tongue 1 to retract into the lock hole 21, a locking member 5 is rotatably mounted inside the lock body 2, the locking member 5 and the lock body 2 are locked together. A second reset torsion spring is arranged between the locking member 5, a first lock hook portion 51 and a first stop portion 52 are arranged on the locking member 5, a second lock hook portion 13 cooperating with the first lock hook portion 51 is arranged on the lock tongue 1, a second stop portion 32 cooperating with the first stop portion 52 is arranged on the square core sleeve 3, the locking driving member 4 is laterally slidably mounted on the lock body 2, a driving rotation mechanism 6 is arranged between the locking driving member 4 and the locking member 5, and the driving rotation mechanism 6 is used to convert the linear motion of the locking driving member 4 into the rotational motion of the locking member 5;

[0027] As shown in Figures 1-2, when the lock is in the open state, the first lock hook portion 51 and the second lock hook portion 13 are separated from each other, and the first stop portion 52 and the second stop portion 32 are separated from each other. At this time, the lock tongue 1 can extend out of the lock hole 21 under the drive of the magnetic force, and can also be retracted into the lock hole 21 under the drive of the square core sleeve 3;

[0028] When the lock is in the closed state, the lock tongue 1 extends out of the lock hole 21 under the drive of the magnetic force, the first lock hook portion 51 and the second lock hook portion 13 are separated from each other, and the first stop portion 52 and the second stop portion 32 stop each other. At this time, the square core sleeve 3 is restricted from rotating, and the lock tongue 1 cannot be retracted into the lock hole 21 under the drive of the square core sleeve 3;

[0029] As shown in FIG. 3 , when the lock is in the safety state, the lock tongue 1 is located in the lock hole 21, the first lock hook portion 51 and the second lock hook portion 13 are engaged with each other, and the first stop portion 52 and the second stop portion 32 stop each other. At this time, the lock tongue 1 is restricted from moving, and the square core sleeve 3 is restricted from rotating. The lock tongue 1 cannot extend out of the lock hole 21 under magnetic drive to combine with the magnetic buckle box.

[0030] The locking drive member 4 is provided with at least two toggle grooves 41 arranged at intervals on the lower side, and the lock body 2 is provided with a mounting hole 22 near the two toggle grooves 41, and a lock core with a dial wheel is installed on the mounting hole 22, and a dial handle is provided on the dial wheel. When the dial wheel rotates, the locking drive member 4 can be driven to move left and right through the cooperation of the dial handle and the two toggle grooves 41; the upper side of the locking drive member 4 is provided with a positioning rack 42, and the back side of the locking drive member 4 is provided with a positioning member 7, and the positioning member 7 is vertically slidably installed inside the lock body 2, and a second reset spring 71 is provided between the positioning member 7 and the lock body 2, and the lower side of the positioning member 7 is provided with a driving plate 72 located behind the two toggle grooves 41, and the upper side of the positioning member 7 is provided with a buckle 73 that is snap-fitted with the positioning rack 42, and when the toggle handle is dialed into the toggle groove 41, the driving plate 72 can be toggled to move the positioning member 7 upward, so as to realize the buckle 73 and the positioning rack 42. When the handle is disengaged from the toggle slot 41, the second reset spring 71 drives the positioning member 7 to move downward for reset, thereby achieving the engagement of the buckle ring 73 and the positioning rack 42.

[0031] The locking drive member 4 and the positioning member 7 are both L-shaped structures, the locking drive member 4 is provided with a first horizontal slide groove 43 and a second horizontal slide groove 44, the positioning member 7 is provided with a first vertical slide groove 74 and a second vertical slide groove 75, the inner wall of the lock body 2 is fixedly provided with a first limiting slide post 23, a second limiting slide post 24 and a third limiting slide post 25, the first horizontal slide groove 43 and the first vertical slide groove 74 are slidably connected to the first limiting slide post 23 and the third limiting slide post 25 respectively, and the second horizontal slide groove 44 and the second vertical slide groove 75 are slidably connected to the second limiting slide post 24.

[0032] The driving rotation mechanism 6 is an inclined plane guiding mechanism, including a reset inclined plane 61 and a toggle inclined plane 62 provided on the locking driving member 4. The locking member 5 is provided with a rotating surface 63 matched with the reset inclined plane 61. When the locking driving member 4 moves to the left, the toggle inclined plane 62 guides the first stop portion 52 to move downward, driving the locking member 5 to rotate forward to lock; when the locking driving member 4 moves to the right, under the action of the second reset torsion spring, the rotating surface 63 fits with the reset inclined plane 61, driving the locking member 5 to rotate in the opposite direction to disengage.

[0033] As attached Figure 4 As shown, the locking driving member 4 and the second stopping portion 32 are staggered in front and back, which can avoid interference between the locking driving member 4 and the second stopping portion 32, making the internal structure of the lock body 2 more compact.

[0034] The second structure of the driving rotating mechanism 6 is a gear rack mechanism, including a driving rack and a driving gear meshing with each other, and the driving rack and the driving gear are respectively fixedly arranged on the locking driving member 4 and the locking member 5. The main structure refers to Figure 1, and the position of the locking driving member 4 is appropriately adjusted so that when the locking driving member 4 moves right, the driving rack drives the driving gear and the locking member 5 to rotate counterclockwise to achieve locking, and when the locking driving member 4 moves left, the driving rack drives the driving gear and the locking member 5 to rotate clockwise to achieve unlocking. The advantage of this structure in resetting is that the second resetting torsion spring can be omitted, and the contact surface is not easy to wear.

[0035] The third structure of the driving rotation mechanism 6 is a crank slider mechanism, including a connecting rod and a crank rod, the crank rod is fixedly arranged on the locking member 5, and the two ends of the connecting rod are respectively hinged to the crank rod and the locking driving member 4. The main structure refers to Figure 1, when the locking driving member 4 moves to the left, the connecting rod drives the crank rod and the locking member 5 to rotate counterclockwise to achieve locking, and when the locking driving member 4 moves to the left, the connecting rod drives the crank rod and the locking member 5 to rotate clockwise to achieve unlocking. This structure is simpler and more convenient to manufacture.

[0036] The push-pull rod 12 is provided with a limit transverse groove 14, and a buffer column 15 is provided at each end of the limit transverse groove 14. A limit convex column 26 is fixedly provided on the inner wall of the lock body 2. The limit convex column 26 slides with the limit transverse groove 14 to limit the travel of the lock tongue. The buffer column 15 can play a role in buffering and reducing noise when the lock tongue is extended and retracted.

[0037] As shown in FIG. 5 , the inner end of the push-pull rod 12 is provided with a protruding sliding seat 16, and the sliding seat 16 is slidably connected to a hollow transverse groove 27 provided on the lock body 2. The sliding seat 16 can limit the inner end of the push-pull rod 12, so that the movement of the lock tongue is more stable, and the hollow transverse groove 27 can facilitate observation of the telescopic state of the lock tongue.

[0038] The lock tongue 1 is fixedly mounted with a magnetic cover 17, which can be made of a magnet and used in conjunction with a magnetic buckle box. The upper and lower sides of the magnetic cover 17 are each provided with a trapezoidal guide groove, and the upper and lower sides of the lock hole 21 are each provided with a trapezoidal protrusion, which is slidably matched with the trapezoidal guide groove. The trapezoidal guide groove can make the lock tongue slide more stably and improve the anti-bending performance of the magnetic cover 17.

[0039] Although the present invention has been shown and described with reference to preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A magnetic lock body, comprising a lock tongue (1), a lock body (2), a square core sleeve (3) and a locking drive member (4), wherein the square core sleeve (3) is rotatably mounted on the lock body (2), a toggle rod (31) is provided on the square core sleeve (3), a first reset torsion spring is provided between the square core sleeve (3) and the lock body (2), the lock tongue (1) is movably arranged on a lock hole (21) provided on a side wall of the lock body (2), the lock tongue (1) can extend out of the lock hole (21) under magnetic drive and be engaged with an external magnetic buckle box, a first reset spring (11) is provided between the lock tongue (1) and the lock body (2), the first reset spring (11) can cause the lock tongue (1) to retract into the lock hole (21) when not subjected to magnetic force; a push-pull rod (12) is provided at the inner end of the lock tongue (1), When the square core sleeve (3) is rotated, the toggle rod (31) can drive the push-pull rod (12) to move backward, thereby driving the lock tongue (1) to retract into the lock hole (21), characterized in that: a locking member (5) is rotatably installed inside the lock body (2), a second return torsion spring is provided between the locking member (5) and the lock body (2), a first lock hook portion (51) and a first stop portion (52) are provided on the locking member (5), a second lock hook portion (13) cooperating with the first lock hook portion (51) is provided on the lock tongue (1), and a second stop portion (32) cooperating with the first stop portion (52) is provided on the square core sleeve (3), the locking drive member (4) is laterally slidably installed on the lock body (2), a driving rotation mechanism (6) is provided between the locking drive member (4) and the locking member (5), and the driving rotation mechanism (6) is used to convert the linear motion of the locking drive member (4) into the rotational motion of the locking member (5); When the lock is in the open state, the first lock hook portion (51) and the second lock hook portion (13) are separated from each other, and the first stop portion (52) and the second stop portion (32) are separated from each other. At this time, the lock tongue (1) can extend out of the lock hole (21) under the drive of the magnetic force, and can also be retracted into the lock hole (21) under the drive of the square core sleeve (3); When the lock is in a closed state, the lock tongue (1) extends out of the lock hole (21) under the drive of magnetic force, the first lock hook portion (51) and the second lock hook portion (13) are separated from each other, and the first stop portion (52) and the second stop portion (32) stop each other. At this time, the square core sleeve (3) is restricted from rotating, and the lock tongue (1) cannot be retracted into the lock hole (21) under the drive of the square core sleeve (3); When the lock is in the safety state, the lock tongue (1) is located in the lock hole (21), the first lock hook portion (51) and the second lock hook portion (13) are engaged with each other, and the first stop portion (52) and the second stop portion (32) are blocked with each other. At this time, the lock tongue (1) is restricted from moving, and the square core shaft sleeve (3) is restricted from rotating. The lock tongue (1) cannot extend out of the lock hole (21) and combine with the magnetic buckle box under magnetic drive.

2. A magnetic lock body according to claim 1, characterized in that: The locking drive member (4) is provided with at least two spaced-apart toggle grooves (41) on the lower side, the lock body (2) is provided with a mounting hole (22) near the two toggle grooves (41), a lock core with a dial wheel is mounted on the mounting hole (22), the dial wheel is provided with a dial handle, when the dial wheel rotates, the locking drive member (4) can be driven to move left and right through the cooperation of the dial handle and the two toggle grooves (41); the locking drive member (4) is provided with a positioning rack (42) on the upper side, the locking drive member (4) is provided with a positioning member (7) on the back side, the positioning member (7) is vertically slidably mounted inside the lock body (2), and the positioning member (7) is rotatably connected to the lock body (2) ), a second return spring (71) is provided between the positioning member (7), a driving plate (72) located behind the two toggle grooves (41) is provided on the lower side of the positioning member (7), a buckle (73) engaged with the positioning rack (42) is provided on the upper side of the positioning member (7), the driving plate (72) can be toggled to move the positioning member (7) upward when the toggle handle is inserted into the toggle groove (41), thereby achieving the separation of the buckle (73) and the positioning rack (42), and the second return spring (71) drives the positioning member (7) to move downward for reset when the toggle handle is separated from the toggle groove (41), thereby achieving the engagement of the buckle (73) and the positioning rack (42).

3. A magnetic lock body according to claim 2, characterized in that: The locking drive member (4) and the positioning member (7) are both L-shaped structures. The locking drive member (4) is provided with a first transverse sliding groove (43) and a second transverse sliding groove (44). The positioning member (7) is provided with a first vertical sliding groove (74) and a second vertical sliding groove (75). A first limiting sliding column (23), a second limiting sliding column (24) and a third limiting sliding column (25) are fixedly provided on the inner wall of the lock body (2). The first transverse sliding groove (43) and the first vertical sliding groove (74) are respectively slidably connected to the first limiting sliding column (23) and the third limiting sliding column (25). The second transverse sliding groove (44) and the second vertical sliding groove (75) are both slidably connected to the second limiting sliding column (24).

4. A magnetic lock body according to claim 1, characterized in that: The driving rotation mechanism (6) is an inclined plane guiding mechanism, comprising a reset inclined plane (61) and a toggle inclined plane (62) provided on the locking driving member (4); the locking member (5) is provided with a rotating plane (63) matched with the reset inclined plane (61); when the locking driving member (4) moves to the left, the toggle inclined plane (62) guides the first stop portion (52) to move downward, driving the locking member (5) to rotate in the forward direction to lock; when the locking driving member (4) moves to the right, under the action of the second reset torsion spring, the rotating plane (63) fits with the reset inclined plane (61), driving the locking member (5) to rotate in the reverse direction to disengage.

5. A magnetic lock body according to claim 4, characterized in that: The locking drive member (4) and the second blocking portion (32) are arranged staggered in front and back.

6. A magnetic lock body according to claim 1, characterized in that: The driving rotation mechanism (6) is a gear rack mechanism, comprising a driving rack and a driving gear meshingly connected to each other, wherein the driving rack and the driving gear are respectively fixedly arranged on the locking driving member (4) and the locking member (5).

7. A magnetic lock body according to claim 1, characterized in that: The driving rotation mechanism (6) is a crank slider mechanism, comprising a connecting rod and a crank rod, wherein the crank rod is fixedly arranged on the locking member (5), and the two ends of the connecting rod are respectively hinged to the crank rod and the locking driving member (4).

8. A magnetic lock body according to claim 1, characterized in that: The push-pull rod (12) is provided with a limit transverse groove (14), and a buffer column (15) is provided at each end of the limit transverse groove (14). A limit convex column (26) is fixedly provided on the inner wall of the lock body (2), and the limit convex column (26) is slidably matched with the limit transverse groove (14).

9. A magnetic lock body according to claim 1, characterized in that: The inner end of the push-pull rod (12) is provided with a protruding sliding seat (16), and the sliding seat (16) is slidably connected to a hollow transverse groove (27) provided on the lock body (2).

10. A magnetic lock body according to claim 1, characterized in that: A magnetic cover (17) is fixedly mounted on the lock tongue (1), a trapezoidal guide groove is provided on the upper and lower sides of the magnetic cover (17), and a trapezoidal protrusion is provided on the upper and lower sides of the lock hole (21), and the trapezoidal protrusion is slidably matched with the trapezoidal guide groove.

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