Adjustable adsorption distance magnetic suction lock

Abstract

The utility model relates to lock technology field especially for a kind of adjustable magnetic attraction lock of adsorption distance, including door body part and door frame part;The door body part includes the door handle installed on door body, and the armature plate installed on the side surface of door body;The door frame part includes the protective cover installed on door frame, installation panel, installation frame and movable box body, and the outer wall of movable box body two sides is equipped with connecting strip, and connecting strip top is equipped with rack, and is engaged with gear, and rotating knob drives gear rotation, and rack drives movable box body to move back and forth, and movable box body inside is equipped with magnetic attraction lock core, and the depth of magnetic attraction lock core is adjusted, so adjustable adsorption distance can be adjusted, and protective cover is covered in the outside of installation frame, and it has played the protection effect to its internal structure, prolongs its service life, and loosens screw and first bolt, and removes installation panel and installation frame, and then the depth of movable box body can be adjusted by rotating knob, which is more convenient and faster.

Description

Technical Field

[0001] This utility model relates to the field of lock technology, specifically to a magnetic lock with adjustable adsorption distance. Background Technology

[0002] A magnetic lock is a type of lock that uses magnetic force to lock and unlock. Also called an electromagnetic lock, its design is similar to that of an electromagnet, utilizing the principle that current generates magnetism. When current passes through the silicon steel sheet of the magnetic lock, the electromagnetic lock generates a strong attraction force, tightly attracting the magnet to achieve the effect of locking the door.

[0003] However, the existing technology has the following drawbacks:

[0004] The existing magnetic locks have a fixed lock cylinder position inside, and the lock cylinder is fixedly connected to the lock base box. However, once the lock base box is installed, it cannot be moved. If the bolt and the lock cylinder do not correspond, not only is adjustment troublesome, but it may also cause the bolt and the lock cylinder to not be able to stick tightly, resulting in a loose door lock and low security performance. Utility Model Content

[0005] The purpose of this invention is to provide a magnetic lock with adjustable adsorption distance to solve the problems mentioned in the background art.

[0006] To achieve one of the above objectives, this utility model provides the following technical solution:

[0007] A magnetic lock with adjustable adsorption distance includes a door body and a door frame. The door body includes a door handle mounted on the door and an armature plate mounted on the side of the door. The door frame includes a protective cover, a mounting panel, a mounting frame, and a movable box mounted on the door frame. The mounting panel has a lock hole in the center. The mounting frame and the protective cover are fixedly mounted sequentially on the center of one side of the mounting panel. The protective cover covers the outside of the mounting frame. The movable box is movably mounted inside the mounting frame, and a magnetic lock core is fixedly mounted inside the movable box. Connecting rods are rotatably mounted on both sides of the mounting frame via rotating connectors. A gear is fixedly mounted at one end of the connecting rod inside the mounting frame. Connecting strips are provided in the center of both sides of the movable box. A groove is provided at the top of the connecting strip, and a rack is fixedly mounted on the bottom inner wall of the groove. The gear meshes with the rack. A knob is fixedly mounted at the end of the connecting rod away from the gear.

[0008] Using the above technical solution, rotating the knob causes the gear and rack to rotate, and the rack drives the movable box to move, which can adjust the position of the magnetic lock core and thus adjust the adsorption distance.

[0009] On both inner walls of the two sides of the installation frame, there are convex strip plates fixedly installed. In the middle of the top of the convex strip plate, there is a chute. At the bottom of the connecting strip plate, there is a sliding strip, and the sliding strip is slidably installed inside the chute. The length of the convex strip plate is equal to the width of the side plate of the protective cover, and the end of the convex strip plate far away from the installation panel is in close contact with the inner wall of the back of the protective cover.

[0010] Adopting the above technical solution, the convex strip plate plays a limiting role on the movable box body. The two ends of the convex strip plate are in close contact with the inner wall of the protective cover and the back of the installation panel respectively, playing a limiting role.

[0011] The front of the installation frame is designed with an opening, and a through groove is provided in the middle of its back. On the outside of the front of the installation frame, there is a second fixed plate fixedly installed. In the middle of the four sides of the second fixed plate, there are second threaded through holes, and second bolts are threadedly installed inside the second threaded through holes.

[0012] Adopting the above technical solution, the through groove facilitates the movable box body to pass through and adjust its depth, and the second bolts connect the installation frame and the installation panel.

[0013] In the middle of the outer walls on both sides of the open end of the protective cover, there are first fixed plates. At both ends of the first fixed plate, there are first threaded through holes, and first bolts are threadedly installed inside the first threaded through holes.

[0014] Adopting the above technical solution, the first bolts play a role in connecting and fixing the protective cover and the installation panel.

[0015] The turning points on the sides of the installation panel are all made with smooth chamfered edges. The size of the lock hole is smaller than the size of the magnetic absorption lock core. At the four corners of the installation panel, there are first installation holes.

[0016] Adopting the above technical solution, the lock hole facilitates the lock tongue to pass through and adsorb and lock with the magnetic absorption lock core. Screws are used to fixedly connect the installation panel and the door frame through the first installation holes 3.

[0017] The convex strip plate is located at the bottom of the connecting strip plate. The cross-sectional shape of the chute and the cross-sectional shape of the sliding strip are both "convex" shaped.

[0018] Adopting the above technical solution, the "convex" shape plays a limiting role and prevents the sliding strip from falling off.

[0019] On both sides of the middle of the end of the protective cover far away from the installation panel, there are installation plates, and at both ends of the installation plate, there are second installation holes.

[0020] Adopting the above technical solution, the magnetic absorption lock core includes a fixed bracket and a bracket sleeve arranged on the fixed bracket. There are a plurality of core holes opened on the fixed bracket, and iron cores are arranged inside the core holes.

[0021] Using the above technical solution, the door body is installed on the door and the door frame is installed on the door frame. The protective cover is fixedly connected to the door frame through the mounting plate and the mounting holes of the door frame. The protective cover protects the internal structure.

[0022] Compared with the prior art, the beneficial effects of this utility model are:

[0023] This invention uses forward and reverse rotation to drive the gear to rotate. The gear meshes with the rack, which in turn drives the movable box to move back and forth inside the protective cover. By adjusting the depth of the movable box, the magnetic lock cylinder's attraction distance to the lock tongue can be adjusted. This adjustment can be made by removing the mounting panel, making it convenient and quick. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the movable box body in this utility model;

[0026] Figure 3 This is a schematic diagram of the magnetic lock core in this utility model;

[0027] Figure 4 This is a structural schematic diagram of the door frame portion of this utility model;

[0028] Figure 5 This is a side sectional view of the door frame portion of this utility model.

[0029] Figure 6 This is a schematic diagram of the mounting panel structure of the door frame portion in this utility model;

[0030] Figure 7 This is a schematic diagram of the movable box structure of the door frame part in this utility model;

[0031] Figure 8 This is a schematic diagram of the protective cover structure for the door frame portion of this utility model;

[0032] Figure 9 This is a schematic diagram of the back structure of the mounting frame for the door frame portion in this utility model.

[0033] In the diagram: 1. Protective cover; 2. Mounting panel; 3. First mounting hole; 4. First fixing plate; 5. First bolt; 6. Mounting frame; 7. Second bolt; 8. Movable box; 9. Lock hole; 10. Magnetic lock cylinder; 11. Connecting strip; 12. Groove; 13. Connecting rod; 14. Gear; 15. Rack; 16. First threaded through hole; 17. Second fixing plate; 18. Second threaded through hole; 19. Through groove; 20. Raised strip; 21. Sliding groove; 22. Sliding strip; 23. Mounting plate; 24. Second mounting hole; 30. Door body; 31. Door handle; 32. Armature plate; 40. Fixed bracket; 41. Bracket sleeve; 42. Core hole; 43. Iron core. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] Please see Figure 1-9 This utility model provides a magnetic lock with adjustable adsorption distance, including a door body and a door frame. The door body includes a door handle 31 installed on the door body 30 and an armature plate 32 installed on the side of the door body 30. The door frame includes a protective cover 1, a mounting panel 2, a mounting frame 6, and a movable box 8 installed on the door frame. A lock hole 9 is provided in the middle of the mounting panel 2. The mounting frame 6 and the protective cover 1 are fixedly installed in sequence on the middle of one side of the mounting panel 2. The protective cover 1 covers the outside of the mounting frame 6. The movable box 8 is movably installed on the door handle 31. Inside the mounting frame 6 and inside the movable box 8, a magnetic lock core 10 is fixedly installed. On both sides of the mounting frame 6, a connecting rod 13 is rotatably installed via a rotating connector. A gear 14 is fixedly installed at one end of the connecting rod 13 inside the mounting frame 6. A connecting strip 11 is provided in the middle of both sides of the movable box 8. A groove 12 is opened at the top of the connecting strip 11, and a rack 15 is fixedly installed on the bottom inner wall of the groove 12. The gear 14 meshes with the rack 15. A knob is fixedly installed at the end of the connecting rod 13 away from the gear 14. Several protruding ridges are evenly distributed on the side wall of the knob.

[0036] The inner walls on both sides of the mounting frame 6 are fixedly equipped with raised strips 20. A groove 21 is provided in the middle of the top of the raised strip 20. A sliding strip 22 is provided at the bottom of the connecting strip 11, and the sliding strip 22 is slidably installed inside the groove 21. The length of the raised strip 20 is equal to the width of the side plate of the protective cover 1, and the end of the raised strip 20 away from the mounting panel 2 is tightly abutted against the inner wall of the back of the protective cover 1. The raised strip 20 plays a limiting role for the movable box 8.

[0037] The mounting frame 6 has an open front and a through groove 19 in the middle of its back. A second fixing plate 17 is fixedly installed on the outer side of the front of the mounting frame 6. A second threaded through hole 18 is opened in the middle of each of the four sides of the second fixing plate 17. A second bolt 7 is installed inside the threaded through hole 18. The horizontal width of the through groove 19 is greater than the width of the movable box 8 plus the width of the two connecting strips 11.

[0038] The protective cover 1 has a first fixing plate 4 in the middle of the outer wall on both sides of the opening end. The first fixing plate 4 has a first threaded through hole 16 at both ends, and a first bolt 5 is installed in the internal thread of the first threaded through hole 16. The first fixing plate 4 is a rectangular ring plate.

[0039] All the corners of the mounting panel 2 are rounded. The size of the lock hole 9 is smaller than that of the magnetic lock cylinder 10. The four corners of the mounting panel 2 are provided with first mounting holes 3. The lock hole 9 is convenient for the lock tongue to pass through.

[0040] The convex strip 20 is located at the bottom of the connecting strip 11. The cross-sectional shape of the slide groove 21 and the cross-sectional shape of the slide 22 are both "convex" shaped. The length of the slide 22 is the same as the length of the connecting strip 11.

[0041] The protective cover 1 has mounting plates 23 on the middle of both sides of the end away from the mounting panel 2, and the mounting plates 23 have second mounting holes 24 at both ends.

[0042] The magnetic lock core 10 includes a fixed bracket 40 and a bracket sleeve 41 disposed on the fixed bracket 40. A plurality of core holes 42 are provided on the fixed bracket 40, and an iron core 43 is disposed in the core holes 42.

[0043] Working principle: When using this utility model, the door body is installed on the door body 30, and the door frame is installed on the door frame. First, the protective cover 1 is inserted into the door frame mounting groove and fixed with screws through the second mounting hole 24. Then, the mounting frame 6 is fixedly installed in the middle of the back of the mounting panel 2 with the second bolt 7. The movable box 8 is located inside the mounting frame 6. Rotating the knob in both directions drives the gear 14 to rotate. The gear 14 meshes with the rack 15, and the rack 15 drives the movable box 8 to move forward, thereby adjusting the depth of the magnetic lock cylinder 10. After inserting the mounting frame 6 into the protective cover 1, the mounting panel 2 is fixedly connected to the protective cover 1 with the first bolt 5. Finally, the mounting panel 2 is fixed with screws through the first mounting hole 3, completing the lock installation.

[0044] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A magnetic lock with adjustable adsorption distance, characterized in that, It includes a door body and a door frame; the door body includes a door handle (31) installed on the door body (30) and an armature plate (32) installed on the side of the door body (30); the door frame includes a protective cover (1), a mounting panel (2), a mounting frame (6) and a movable box (8) installed on the door frame. The mounting panel (2) has a lock hole (9) in the middle. The mounting frame (6) and the protective cover (1) are fixedly installed in sequence on the middle of one side of the mounting panel (2). The protective cover (1) covers the outside of the mounting frame (6). The movable box (8) is movably installed inside the mounting frame (6). The movable box (8) is equipped with a magnetic lock core (10) inside. Both sides of the mounting frame (6) are rotatably mounted with connecting rods (13) via rotating connectors. One end of the connecting rod (13) inside the mounting frame (6) is fixedly mounted with a gear (14). Both sides of the movable box (8) are provided with connecting strips (11). The top of the connecting strips (11) is provided with a groove (12), and a rack (15) is fixedly mounted on the bottom inner wall of the groove (12). The gear (14) meshes with the rack (15). A knob is fixedly mounted on the end of the connecting rod (13) away from the gear (14).

2. The magnetic lock with adjustable adsorption distance according to claim 1, characterized in that, The inner walls on both sides of the mounting frame (6) are fixedly installed with convex plates (20). A groove (21) is provided in the middle of the top of the convex plate (20). A slide (22) is provided at the bottom of the connecting strip (11). The slide (22) is slidably installed inside the groove (21). The length of the convex plate (20) is equal to the width of the side plate of the protective cover (1). The end of the convex plate (20) away from the mounting panel (2) is in close contact with the inner wall of the back of the protective cover (1).

3. The magnetic lock with adjustable adsorption distance according to claim 1, characterized in that, The mounting frame (6) has an open front and a through groove (19) in the middle of its back. A second fixing plate (17) is fixedly installed on the outer side of the front of the mounting frame (6). A second threaded through hole (18) is opened in the middle of the perimeter of the second fixing plate (17). A second bolt (7) is installed inside the threaded through hole (18).

4. A magnetic lock with adjustable adsorption distance according to claim 1, characterized in that, The protective cover (1) has a first fixing plate (4) in the middle of the outer wall on both sides of the opening end. The first fixing plate (4) has a first threaded through hole (16) at both ends, and a first bolt (5) is installed in the internal thread of the first threaded through hole (16).

5. A magnetic lock with adjustable adsorption distance according to claim 1, characterized in that, The side bends of the mounting panel (2) are all rounded and chamfered. The size of the lock hole (9) is smaller than that of the magnetic lock core (10). The four corners of the mounting panel (2) are provided with first mounting holes (3).

6. A magnetic lock with adjustable adsorption distance according to claim 2, characterized in that, The convex strip (20) is located at the bottom of the connecting strip (11), and the cross-sectional shape of the groove (21) and the cross-sectional shape of the slide (22) are both "convex".

7. A magnetic lock with adjustable adsorption distance according to claim 1, characterized in that, The protective cover (1) has mounting plates (23) in the middle of both sides of the end away from the mounting panel (2), and the mounting plates (23) have second mounting holes (24) at both ends.

8. A magnetic lock with adjustable adsorption distance according to claim 1, characterized in that, The magnetic lock core (10) includes a fixed bracket (40) and a bracket sleeve (41) disposed on the fixed bracket (40). Multiple core holes (42) are provided on the fixed bracket (40), and an iron core (43) is provided in the core holes (42).

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