Electromagnetic lock and lock hook structure

By setting up emergency lock opening rods, micro switches and connecting wires on the lock body of the electromagnetic lock, and setting up a stable groove and connection structure on the lock tongue, the impact force is buffered by springs to achieve the size adjustment of the lock hook, which solves the problems of the short service life of the electromagnetic lock and the limitations of the lock hook structure, and improves the protection and versatility of the electromagnetic lock.

CN222949626UActive Publication Date: 2025-06-06SHENZHEN WUFU TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202421731479.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-22
Publication Date
2025-06-06
Estimated Expiration
2034-07-22

AI Technical Summary

Technical Problem

The existing electromagnetic lock has a short service life and the use of the lock hook structure has limitations, so it cannot adapt to lock bodies of different sizes.

Method used

An electromagnetic lock and lock hook structure is designed. By setting up an emergency lock opening lever, micro switch and connecting wire on the lock body, and setting a stable groove and connecting structure on the lock tongue, the impact force is buffered by using a spring to achieve the size adjustment of the lock hook.

Benefits of technology

The electromagnetic lock is prevented from damage to the impact force through spring cushioning, which improves the protection of the electromagnetic lock, and expands the scope of application of the lock hook through size adjustment, improving versatility.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides an electromagnetic lock and a lock hook structure, and relates to the technical field of electromagnetic locks. The electromagnetic lock and lock hook structure comprises a lock body, an emergency unlocking rod is arranged on the upper side of the lock body, a microswitch is arranged on the right side of the lock body, and a connecting wire is arranged on the lower side of the lock body; a spring bolt is rotationally connected to the side, close to the microswitch, of the lock body, a stabilizing groove is formed in the middle of the spring bolt, a connecting structure is arranged on the inner wall of the stabilizing groove, a contact block is arranged on the connecting structure, and two springs are arranged on one side of the contact block. The connecting structure can drive the contact block to slide in the depth direction of the stabilizing groove so as to compress the two springs. According to the electromagnetic lock and the lock hook structure, the hook body on the mounting frame collides with the contact block to conduct moving operation, the closing protection effect is achieved, the effect of improving the use protection performance of the electromagnetic lock is achieved, the rotating disc is manually rotated to conduct rotating operation, the size adjusting effect is achieved, and the effect of improving the universality of the lock hook is achieved.
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Description

Technical Field

[0001] The utility model relates to an electromagnetic lock and a lock hook structure, belonging to the technical field of electromagnetic locks. Background Art

[0002] Electromagnetic locks use the principle of electromagnetism. When current passes through silicon steel sheets, the electromagnetic lock will generate a strong suction force to tightly absorb the adsorption iron plate to achieve the effect of locking the door. Nowadays, the application scope of electromagnetic locks is very wide. For example, electromagnetic locks are used in vending machines, display cabinets, storage cabinets, lockers, express cabinets and other lockers.

[0003] The existing electromagnetic lock includes a mounting base, a lock catch, a lock hook, a cam, a transmission assembly, an electromagnetic assembly, an iron core column and a micro switch. The lock catch, the cam, the transmission assembly, the electromagnetic assembly and the iron core column are all installed in the mounting base, the lock catch abuts against the cam, the transmission assembly is connected between the cam and the iron core column, and the iron core column is connected to the electromagnetic assembly. Taking a locker as an example, generally, the lock hook is suitable for being installed on the door of the locker, and the mounting base is suitable for being installed on the cabinet body of the locker. The electromagnetic lock is switched on and off by making the lock hook engage or separate with the cam in the mounting base, and an external force is applied to the lock hook to push it. The movable cam rotates counterclockwise, and the rotation of the cam drives the lock buckle to rotate counterclockwise. The cam rotates until it engages with the lock hook, and the lock buckle rotates clockwise again until it engages with the cam to fix the cam. At this time, the electromagnetic lock is in a locked state; when unlocking is required, the electromagnetic component is energized, and the electromagnetic component drives the iron core column to move in the direction of the electromagnetic component. Then the iron core column drives the lock buckle to rotate counterclockwise through the transmission component, so that the lock buckle is disengaged from the cam. The cam rotates clockwise under the action of the driving force, thereby separating the cam from the lock hook and driving the micro switch to push the cabinet door open. At this time, the electromagnetic lock is in an unlocked state.

[0004] Although the existing electromagnetic lock can be used in daily life, in actual use, since the lock tongue can only be closed by the lock hook hitting the lock tongue when closing the door, the impact force generated by the collision acts completely on the lock body, which can easily damage the lock body in the long run, thereby making the electromagnetic lock less protective. In addition, the size of the lock hook is relatively fixed, so the lock hook can only be used in conjunction with the lock body at a fixed distance. If the lock hook is too long or too short, it will affect the normal use of the electromagnetic lock, thereby limiting the use of the lock hook structure. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] The utility model provides an electromagnetic lock and a lock hook structure to solve the problems in the prior art that the electromagnetic lock has a short service life and the lock hook structure has limitations in use.

[0007] (II) Technical solution

[0008] The utility model is implemented by the following technical scheme: an electromagnetic lock comprises a lock body, an emergency unlocking rod is arranged on the upper side of the lock body, a micro switch is arranged on the right side of the lock body, and a connecting wire is arranged on the lower side of the lock body;

[0009] The lock body is rotatably connected to a lock tongue on one side close to the micro switch, a stabilizing groove is provided in the middle of the lock tongue, a connecting structure is provided on the inner wall of the stabilizing groove, a contact block is provided on the connecting structure, and two springs are provided on one side of the contact block; the connecting structure can slide with the contact block in the depth direction of the stabilizing groove to compress the two springs, and use the elastic force to buffer the impact force of the lock hook.

[0010] Preferably, the connection structure comprises a stabilizing block, a contact block is fixed to one end of the stabilizing block, two stabilizing rods are fixed to the other end of the stabilizing block, and two springs are fixed to the other end of the stabilizing block.

[0011] Preferably, one end of the two springs is fixed to one end of the two stabilizing blocks, and the other end of the two springs is fixed to the inner wall of the stabilizing groove. The two springs are sleeved on two stabilizing rods, and the two stabilizing rods pass through one side of the lock tongue. The outer surface of the stabilizing block is slidably connected to the inner wall of the stabilizing groove, and one end of the contact block is fixed to the middle of the stabilizing block, and the contact block passes through the other side of the lock tongue.

[0012] Preferably, it includes a mounting frame, wherein mounting holes are provided at four corners of the mounting frame, a fixing frame is fixed in the middle of the mounting frame, a frame groove is provided in the middle of the fixing frame, an adjusting frame is slidably connected to the inner wall of the frame groove, a hook body is fixed in the middle of the adjusting frame, a threaded rod is threadedly connected to one side of the adjusting frame, a turntable is fixed to one end of the threaded rod, and a limiting rod is slidably connected to the other side of the adjusting frame.

[0013] Preferably, the outer surface of the adjustment frame is slidably connected to the inner wall of the frame groove, the outer surface of the threaded rod is threadedly connected to one side of the adjustment frame, the outer surface of the limit rod is slidably connected to the other side of the adjustment frame, and both ends of the limit rod are fixed to one side of the fixing frame.

[0014] Preferably, the outer surface of the threaded rod is rotatably connected to the inner wall of the fixing frame, the middle part of the turntable is fixed to one end of the threaded rod, the cross-section of the threaded rod is T-shaped, the outer surface of the turntable is rotatably connected to the inner wall of the fixing frame, and a plurality of protrusions are fixed to one end of the turntable away from the fixing frame.

[0015] Preferably, the hook body passes through one end of the fixing frame away from the mounting frame, two ends of the hook body are fixed at the middle of the adjusting frame, and the cross section of the hook body is U-shaped.

[0016] The utility model provides an electromagnetic lock and a lock hook structure, which has the following beneficial effects:

[0017] (1) The electromagnetic lock and lock hook structure moves by the hook body on the mounting frame hitting the contact block, so that the lock tongue, the stabilizing groove, the stabilizing block, the contact block, the stabilizing rod, and the spring work together to achieve the closing protection effect, thereby preventing the electromagnetic lock from being damaged by the impact force during closing, thereby achieving the effect of improving the protection of the electromagnetic lock.

[0018] (2) The electromagnetic lock and lock hook structure rotates by manually turning the turntable, so that the fixed frame, frame slot, adjustment frame, hook body, threaded rod, turntable, and limit rod cooperate with each other to achieve the effect of size adjustment. The size of the lock hook can be adjusted accordingly according to the installation needs on site to expand the scope of application, thereby achieving the effect of improving the versatility of the lock hook. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional diagram of the utility model;

[0020] Figure 2 It is a partial structural schematic diagram of the utility model;

[0021] Figure 3 For this utility model Figure 2 A magnified view of the structure of part A;

[0022] Figure 4 It is a cross-sectional view of the fixing frame of the utility model.

[0023]

Main component symbol description

[0024] 1. Lock body; 2. Emergency unlocking rod; 3. Micro switch; 4. Connecting wires; 5. Lock tongue; 6. Stabilizing groove; 7. Stabilizing block; 8. Contact block; 9. Stabilizing rod; 10. Spring; 11. Mounting frame; 12. Mounting hole; 13. Fixed frame; 14. Frame slot; 15. Adjustment frame; 16. Hook body; 17. Threaded rod; 18. Turntable; 19. Limit rod. DETAILED DESCRIPTION

[0025] The embodiment of the utility model provides an electromagnetic lock and a lock hook structure.

[0026] See also Figure 1 , Figure 2 , Figure 3 and Figure 4, including a lock body 1, the lock body 1 is an electromagnetic lock body, which uses the principle of electromagnetism. When current passes through the silicon steel sheet, the electromagnetic lock will generate a strong suction force to tightly absorb the adsorption iron plate to achieve the effect of locking the door. An emergency unlocking rod 2 is arranged on the upper side of the lock body 1, and the emergency unlocking rod 2 performs the function of emergency unlocking. A micro switch 3 is arranged on the right side of the lock body 1, and the micro switch 3 applies a thrust when unlocking. A connecting wire 4 is arranged on the lower side of the lock body 1, and the connecting wire 4 is connected to the power supply; a lock tongue 5 is rotatably connected to the side of the lock body 1 close to the micro switch 3, and the lock tongue 5 cooperates with the lock hook to achieve the locking function. A stabilizing groove 6 is opened in the middle of the lock tongue 5, and a connecting structure is arranged on the inner wall of the stabilizing groove 6. The connecting structure includes a stabilizing block 7, and a contact block 8 is fixed to one end of the stabilizing block 7, and two stabilizing rods 9 are fixed to the other end of the stabilizing block 7, and two springs 10 are fixed to the other end of the stabilizing block 7.

[0027] Please refer again Figure 1 , Figure 2 , Figure 3 and Figure 4 It is worth specifying that one end of the two springs 10 is fixed to one end of the two stabilizing blocks 7, and the other end of the two springs 10 is fixed to the inner wall of the stabilizing groove 6. The two springs 10 are sleeved on two stabilizing rods 9, and the two stabilizing rods 9 pass through one side of the lock tongue 5. The outer surface of the stabilizing block 7 is slidably connected to the inner wall of the stabilizing groove 6, and one end of the contact block 8 is fixed to the middle of the stabilizing block 7, and the contact block 8 passes through the other side of the lock tongue 5.

[0028] Please refer again Figure 1 , Figure 2 , Figure 3 and Figure 4 It is worth specifically explaining that it includes a mounting frame 11, and mounting holes 12 are opened at the four corners of the mounting frame 11. A fixing frame 13 is fixed in the middle of the mounting frame 11, and a frame groove 14 is opened in the middle of the fixing frame 13. An adjusting frame 15 is slidably connected to the inner wall of the frame groove 14, and a hook body 16 is fixed in the middle of the adjusting frame 15. A threaded rod 17 is threadedly connected to one side of the adjusting frame 15, and a turntable 18 is fixed to one end of the threaded rod 17. The other side of the adjusting frame 15 is slidably connected to a limiting rod 19.

[0029] Please refer again Figure 1 , Figure 2 , Figure 3 and Figure 4It is worth specifically explaining that the outer surface of the adjusting frame 15 is slidably connected to the inner wall of the frame groove 14, the outer surface of the threaded rod 17 is threadedly connected to one side of the adjusting frame 15, the outer surface of the limit rod 19 is slidably connected to the other side of the adjusting frame 15, both ends of the limit rod 19 are fixed to one side of the fixing frame 13, the outer surface of the threaded rod 17 is rotatably connected to the inner wall of the fixing frame 13, the middle part of the turntable 18 is fixed to one end of the threaded rod 17, the cross-section of the threaded rod 17 is T-shaped, the outer surface of the turntable 18 is rotatably connected to the inner wall of the fixing frame 13, and a plurality of protrusions are fixed on the end of the turntable 18 away from the fixing frame 13, the hook body 16 penetrates the end of the fixing frame 13 away from the mounting frame 11, the two ends of the hook body 16 are fixed to the middle part of the adjusting frame 15, and the cross-section of the hook body 16 is U-shaped.

[0030] When the utility model is used, the mounting frame 11 is first mounted on the cabinet door, and then the lock body 1 is mounted on the cabinet, and then the door is closed, and the hook body 16 on the mounting frame 11 hits the contact block 8 to move, so that the stabilizing block 7 fixedly connected to the contact block 8 moves under the stability of the stabilizing groove 6, and the moving stabilizing block 7 compresses the two springs 10 under the stability of the two stabilizing rods 9, so that the two springs 10 are compressed to generate elastic support, and the elastic force generated by the compression of the spring 10 is opposite to the impact force generated by the impact of the hook body 16, and the impact is buffered by the elastic force, so as to achieve the effect of closing protection and avoid the impact when closing. The impact force damages the electromagnetic lock, thereby achieving the effect of improving the protectiveness of the electromagnetic lock. Subsequently, the turntable 18 is rotated by manpower, so that the threaded rod 17 fixedly connected to the turntable 18 is rotated under the stability of the fixed frame 13. The rotating threaded rod 17 drives the adjustment frame 15 threadedly connected to the outer surface to move under the limit of the frame groove 14 and the limit rod 19. The moving adjustment frame 15 drives the hook body 16 fixed in the middle to move, completing the effect of size adjustment. The size of the lock hook can be adjusted accordingly according to the installation needs on site to expand the scope of application, thereby achieving the effect of improving the versatility of the lock hook.

[0031] Working principle: The hook body 16 on the mounting frame 11 hits the contact block 8 to move, so that the contact block 8 drives the stabilizing block 7 to compress the spring 10, thereby achieving the closing protection effect, avoiding the impact force during closing from damaging the electromagnetic lock, thereby achieving the effect of improving the protection of the electromagnetic lock. Subsequently, the turntable 18 is rotated by manpower, so that the threaded rod 17 connected to the turntable 18 drives the adjusting frame 15 to move, thereby achieving the effect of size adjustment. The size of the lock hook can be adjusted accordingly according to the installation needs on site to expand the scope of application, thereby achieving the effect of improving the versatility of the lock hook.

[0032] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An electromagnetic lock, comprising a lock body (1), characterized in that: An emergency unlocking rod (2) is arranged on the upper side of the lock body (1), a micro switch (3) is arranged on the right side of the lock body (1), and a connecting wire (4) is arranged on the lower side of the lock body (1); A lock tongue (5) is rotatably connected to a side of the lock body (1) close to the micro switch (3); a stabilizing groove (6) is provided in the middle of the lock tongue (5); a connecting structure is provided on the inner wall of the stabilizing groove (6); a contact block (8) is provided on the connecting structure; two springs (10) are provided on one side of the contact block (8); the connecting structure can slide with the contact block (8) in the depth direction of the stabilizing groove (6) to compress the two springs (10) and use the elastic force to buffer the impact force of the lock hook.

2. An electromagnetic lock according to claim 1, characterized in that: The connection structure comprises a stabilizing block (7), a contact block (8) being fixed to one end of the stabilizing block (7), two stabilizing rods (9) being fixed to the other end of the stabilizing block (7), and two springs (10) being fixed to the other end of the stabilizing block (7).

3. An electromagnetic lock according to claim 2, characterized in that: One end of the two springs (10) is fixed to one end of the two stabilizing blocks (7), and the other end of the two springs (10) is fixed to the inner wall of the stabilizing groove (6). The two springs (10) are sleeved on two stabilizing rods (9), and the two stabilizing rods (9) pass through one side of the lock tongue (5). The outer surface of the stabilizing block (7) is slidably connected to the inner wall of the stabilizing groove (6). One end of the contact block (8) is fixed to the middle of the stabilizing block (7), and the contact block (8) passes through the other side of the lock tongue (5).

4. A lock hook structure for an electromagnetic lock according to any one of claims 1 to 3, characterized in that: The invention comprises a mounting frame (11), wherein the mounting frame (11) is provided with mounting holes (12) at four corners, a fixing frame (13) is fixed in the middle of the mounting frame (11), a frame groove (14) is provided in the middle of the fixing frame (13), an adjusting frame (15) is slidably connected to the inner wall of the frame groove (14), a hook body (16) is fixed in the middle of the adjusting frame (15), a threaded rod (17) is threadedly connected to one side of the adjusting frame (15), a rotating disk (18) is fixed to one end of the threaded rod (17), and a limiting rod (19) is slidably connected to the other side of the adjusting frame (15).

5. The locking hook structure according to claim 4, characterized in that: The outer surface of the adjusting frame (15) is slidably connected to the inner wall of the frame groove (14), the outer surface of the threaded rod (17) is threadedly connected to one side of the adjusting frame (15), the outer surface of the limiting rod (19) is slidably connected to the other side of the adjusting frame (15), and both ends of the limiting rod (19) are fixed to one side of the fixing frame (13).

6. The locking hook structure according to claim 4, characterized in that: The outer surface of the threaded rod (17) is rotatably connected to the inner wall of the fixing frame (13); the middle part of the turntable (18) is fixed to one end of the threaded rod (17); the cross section of the threaded rod (17) is T-shaped; the outer surface of the turntable (18) is rotatably connected to the inner wall of the fixing frame (13); and a plurality of protrusions are fixed to one end of the turntable (18) away from the fixing frame (13).

7. The locking hook structure according to claim 4, characterized in that: The hook body (16) penetrates through one end of the fixing frame (13) away from the mounting frame (11), and both ends of the hook body (16) are fixed to the middle of the adjusting frame (15). The cross section of the hook body (16) is U-shaped.