Double-tongue magnetic attraction lock body structure

By designing an exposed arc-shaped magnet block and a rotatable magnet column, the problem of magnetic particles adhering to the surface of the magnet block was solved, improving the lock's efficiency and security.

CN224326119UActive Publication Date: 2026-06-05ZHEJIANG JIAHE LOCK CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG JIAHE LOCK CO LTD
Filing Date
2025-07-18
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

The magnetic blocks of existing double-tongue magnetic locks are prone to magnetic particles adhering to their surface, which reduces the magnetic attraction force and decreases the efficiency and security of the lock.

Method used

A double-tongue magnetic lock body structure is designed, in which the surface of the arc-shaped magnetic block is exposed for easy cleaning, the magnetic column is slidably connected to the U-shaped frame through the arc-shaped groove, the magnetic column can rotate for easy cleaning, and the left end opening of the first mounting groove is arc-shaped to facilitate scraping and cleaning of particles on the surface of the magnetic column.

Benefits of technology

It effectively prevents magnetic particles from adhering, improves the lock's adsorption capacity, and enhances the efficiency and security of the door lock.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224326119U_ABST
    Figure CN224326119U_ABST
Patent Text Reader

Abstract

The utility model discloses a double -tongue magnetic attraction lock body structure relates to the technical field of magnetic attraction lock, solved the double -tongue magnetic attraction lock when using, will make the magnetic attraction of magnetic block decline, reduced the use efficiency of door lock, and the problem of security, including main lock and deputy lock, the inside upper end sliding joint of main lock has the wedge -shaped lock tongue, the main lock and deputy lock are fixed respectively in the inside of door body and door frame, the side wall of main lock and deputy lock is set up respectively second installation groove and first installation groove, the inside fixed mounting of first installation groove has the arc magnet block, the side wall of arc magnet block and the right side wall of deputy lock are horizontal, the inside of arc magnet block is provided with arc groove, through the surface of arc magnet block is exposed, can conveniently clean the surface of arc magnet block, can prevent the magnetic particle impurity of its surface and cause the magnetic attraction adsorption of lock main body to reduce under the use of long -term.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the technical field of magnetic locks, specifically to a double-tongue magnetic lock body structure. Background Technology

[0002] The double-tongue magnetic lock body is a core component of locks that combines mechanical locking tongues with electromagnetic attraction. It mainly consists of a double-tongue system, a magnetic drive device, a lock body shell, and a linkage mechanism. Its core feature is that it achieves double locking through two locking tongues with different functions working together with the magnetic device, combining the reliability of mechanical locking with the convenience of electromagnetic control.

[0003] However, in existing double-tongue magnetic locks, the surfaces of the magnetic blocks on both sides are horizontal, and the positions of the magnetic blocks installed on the door frame are fixed. Over time, a large amount of magnetic particles will adhere to the surfaces of the magnetic blocks on both sides. Furthermore, the magnetic blocks inside the door frame are not exposed outside the door frame. As a result, the magnetic attraction of the magnetic blocks will decrease over time, reducing the efficiency and security of the lock. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a double-tongue magnetic lock body structure. This solves the problem that in traditional double-tongue magnetic locks, the surfaces of the magnetic blocks on both sides are horizontal, and the positions of the magnetic blocks installed on the door frame are fixed. Over time, this causes a large amount of magnetic particles to adhere to the surfaces of the magnetic blocks. Furthermore, the magnetic blocks located inside the door frame are not exposed outside, leading to a decrease in magnetic attraction over time, thus reducing the lock's efficiency and security.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a double-tongue magnetic lock body structure, comprising a main lock and a secondary lock. A wedge-shaped locking tongue is slidably connected to the upper part of the main lock. The main lock and the secondary lock are respectively fixedly installed inside the door body and the door frame. A second mounting groove and a first mounting groove are respectively provided inside the side walls of the main lock and the secondary lock. An arc-shaped magnetic block is fixedly installed inside the first mounting groove. The side wall of the arc-shaped magnetic block is horizontal with the right side wall of the secondary lock. An arc-shaped groove is provided inside the arc-shaped magnetic block. A U-shaped frame is slidably connected inside the second mounting groove. A magnetic column is provided inside the U-shaped frame. Support columns are fixedly installed at both ends of the magnetic column, and the support columns are rotatably connected to the side walls at both ends of the U-shaped frame. The left end of the second mounting groove is arc-shaped, and its side wall fits against the side wall of the magnetic column. The magnetic column is magnetically attracted to the arc-shaped groove of the arc-shaped magnetic block.

[0006] Preferably, a lock hole is provided inside the left side wall of the main lock. The lock hole is located at the upper end of the second mounting groove, and the interior of the second mounting groove is connected to the interior of the lock hole. The wedge-shaped lock tongue is slidably connected to the interior of the lock hole. A moving block is fixedly installed on the bottom surface of the right end of the wedge-shaped lock tongue. A limiting block is fixedly installed at the upper end of the U-shaped frame. The moving block is located to the left of the limiting block, and when the magnet post is connected inside the arc-shaped groove, the moving block and the side wall of the limiting block are in contact with each other, thereby facilitating the movement of the magnet post into the interior of the first mounting groove.

[0007] Preferably, the upper end of the arc-shaped magnet block has a groove, and a wedge block is slidably connected inside the groove. A tension spring is symmetrically fixed between the upper end of the wedge block and the upper sidewall of the groove. The upper end of the magnet column has an annular limiting groove, and the wedge block is inserted into the limiting groove, thereby facilitating the limiting of the position of the magnet column.

[0008] Preferably, the upper corner of the magnet column is rounded, the bottom of the wedge block is rounded, and the inclined surface faces the inside of the first mounting groove, thereby facilitating the limiting and unlocking of the magnet column.

[0009] Preferably, the length of the first mounting slot matches the length of the U-shaped frame, thereby facilitating the entry of the U-shaped frame into the mounting slot.

[0010] Preferably, a limiting tube and a reset spring are symmetrically fixedly installed on the right side wall of the U-shaped frame. A fixing rod is slidably connected inside each limiting tube. The right end of the fixing rod and the right end of the reset spring are respectively fixedly connected to the right side wall of the second mounting groove, thereby facilitating the limiting of the position of the magnet column and its reset.

[0011] This utility model provides a double-tongue magnetic lock body structure. It has the following beneficial effects:

[0012] 1. The double-tongue magnetic lock body structure, when using the double-tongue magnetic lock body structure, by exposing the surface of the arc-shaped magnet, the surface of the arc-shaped magnet can be easily cleaned, which can prevent the magnetic particle impurities attached to its surface from reducing the magnetic attraction force of the lock body due to long-term use.

[0013] 2. This double-tongue magnetic lock body structure, when used, the arc-shaped opening at the left end of the first mounting groove can effectively scrape the surface of the rotatable magnetic column, which can conveniently clean the magnetic particles adsorbed on the surface of the magnetic column and improve the lock's adsorption capacity. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the secondary lock structure of this utility model;

[0016] Figure 3 This is a cross-sectional view of the magnet column of this utility model;

[0017] Figure 4 This is a schematic diagram of the magnet column structure of this utility model;

[0018] Figure 5 This utility model Figure 3 Enlarged structural diagram of section A.

[0019] In the diagram, 1. Main lock; 2. Secondary lock; 3. Wedge bolt; 4. Magnet post; 5. First mounting slot; 6. Arc-shaped magnet block; 7. Arc-shaped groove; 8. Second mounting slot; 9. Limiting groove; 10. U-shaped frame; 11. Moving block; 12. Support column; 13. Limiting tube; 14. Fixing rod; 15. Return spring; 16. Groove; 17. Wedge block; 18. Tensioning spring; 19. Limiting block; 20. Lock hole. Detailed Implementation

[0020] 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.

[0021] Example 1

[0022] Please see Figure 1-5This utility model embodiment provides a double-tongue magnetic lock body structure, including a main lock 1 and a secondary lock 2. A wedge-shaped locking tongue 3 is slidably connected to the upper part of the main lock 1. The main lock 1 and the secondary lock 2 are respectively fixedly installed inside the door body and the door frame. The side walls of the main lock 1 and the secondary lock 2 are respectively provided with a second mounting groove 8 and a first mounting groove 5. An arc-shaped magnetic block 6 is fixedly installed inside the first mounting groove 5. The side wall of the arc-shaped magnetic block 6 is horizontal with the right side wall of the secondary lock 2. An arc-shaped groove 7 is provided inside the arc-shaped magnetic block 6. A U-shaped frame 10 is slidably connected inside the second mounting groove 8. The frame 10 has a magnetic column 4 inside, and support columns 12 are fixedly installed at both the upper and lower ends of the magnetic column 4. The support columns 12 are rotatably connected to the side walls at the upper and lower ends of the U-shaped frame 10. The left end of the second mounting groove 8 is arc-shaped, and its side wall fits against the side wall of the magnetic column 4. The magnetic column 4 is magnetically attracted to the arc-shaped groove 7 of the arc-shaped magnetic block 6. The upper end of the arc-shaped magnetic block 6 has a groove 16 inside, and a wedge block 17 is slidably connected inside the groove 16. A tensioning device is symmetrically fixed between the upper end of the wedge block 17 and the upper side wall of the groove 16. The upper end of the spring 18 and the magnet post 4 is provided with an annular limiting groove 9, and the wedge block 17 is inserted into the limiting groove 9. When using the double-tongue lock body, the main lock 1 and the auxiliary lock 2 are fixedly installed inside the door panel and the door frame, respectively. Then, when closing the door body, the door panel and the door frame are closed. At this time, the wedge-shaped lock tongue will enter the lock hole. The first mounting groove 5 and the second mounting groove 8 fit together. Under the action of the arc-shaped magnet block 6, the position of the magnet post 4 can be easily moved, and the magnet post 4 is inserted into the arc-shaped groove 7. The upper sidewall has rounded corners. By pressing the wedge block 17 with the rounded corners, the wedge block 17 can be moved into the interior of the groove 16 until it is moved into the interior of the limiting groove 9. This can easily fix the position of the magnetic column 4, making the position of the magnetic column 4 stable. Since the magnetic column 4 can rotate, it is easy to use a magnet to pull the magnetic column 4 out from the outside, making it easy to clean its surface. At the same time, since the surface of the arc-shaped magnetic block 6 is on the outside, its surface can be easily cleaned, improving the efficiency of the device.

[0023] Example 2

[0024] To facilitate the repositioning of the magnet post 4, in this embodiment, as follows: Figure 1-5As shown, a lock hole 20 is provided inside the left side wall of the main lock 1. The lock hole 20 is located at the upper end of the second mounting groove 8, and the interior of the second mounting groove 8 is connected to the interior of the lock hole 20. The wedge-shaped lock tongue 3 is slidably connected to the interior of the lock hole 20. A moving block 11 is fixedly installed on the bottom right end of the wedge-shaped lock tongue 3. A limit block 19 is fixedly installed on the upper end of the U-shaped frame 10. The moving block 11 is located on the left side of the limit block 19. When the magnet post 4 is connected inside the arc-shaped groove 7, the moving block 11 and the side wall of the limit block 19 are in contact with each other. The upper corner of the magnet post 4 is rounded, the bottom of the wedge-shaped block 17 is rounded, and the inclined surface faces the interior of the first mounting groove 5. The length of the first mounting groove 5 is... The length of the U-shaped frame 10 is matched with the width of the U-shaped frame 10. The right side wall of the U-shaped frame 10 is symmetrically fixed with a limiting tube 13 and a return spring 15. The inside of the limiting tube 13 is slidably connected with a fixing rod 14. The right end of the fixing rod 14 and the right end of the return spring 15 are respectively fixedly connected to the right side wall of the second mounting groove 8. When the door panel needs to be opened, the wedge-shaped lock tongue 3 is moved by the handle on the door. The wedge-shaped lock tongue 3 moves into the inside of the second mounting groove 8. At this time, the limiting block 19 can be squeezed by the moving block 11. After the wedge-shaped block 17 is squeezed by the magnetic column 4, the magnetic column 4 can be dislodged from the inside of the wedge-shaped block 17.

[0025] It should be noted that, in this embodiment, as Figure 1-5 As shown, when using the double-tongue lock body, the main lock 1 and the auxiliary lock 2 are fixedly installed inside the door panel and door frame, respectively. Then, when closing the door body, the door panel and door frame are closed, and the wedge-shaped lock tongue enters the lock hole. The first mounting groove 5 and the second mounting groove 8 fit together. Under the action of the arc-shaped magnet 6, the position of the magnet post 4 can be easily moved, and the magnet post 4 is inserted into the arc-shaped groove 7. The upper side wall of the magnet post 4 is rounded. Using this rounded corner to press the wedge block 17, the wedge block 17 can be moved into the groove 16 until it is moved into the limiting groove 9, which can easily fix the position of the magnet post 4, making the position of the magnet post 4 stable. The magnetic column 4 can rotate, making it easy to pull it out using a magnet from the outside. This facilitates cleaning of its surface. Simultaneously, since the surface of the arc-shaped magnetic block 6 is on the outside, it can be easily cleaned, improving the efficiency of the device. When the door needs to be opened, the door handle moves the wedge-shaped latch 3 (this is a conventional door lock technique, so it is not described in detail here). The wedge-shaped latch 3 moves into the second mounting groove 8, at which point the moving block 11 presses against the limiting block 19. After being pressed by the magnetic column 4, the wedge-shaped block 17 can disengage the magnetic column 4 from its interior.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0027] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A double-tongue magnetic lock body structure, characterized in that: Includes a main lock (1) and a secondary lock (2). The upper part of the main lock (1) is slidably connected to a wedge-shaped latch (3). The main lock (1) and the secondary lock (2) are respectively fixedly installed inside the door body and the door frame. The side walls of the main lock (1) and the secondary lock (2) are respectively provided with a second mounting groove (8) and a first mounting groove (5). An arc-shaped magnet (6) is fixedly installed inside the first mounting groove (5). The side wall of the arc-shaped magnet (6) is horizontal with the right side wall of the secondary lock (2). An arc-shaped groove is provided inside the arc-shaped magnet (6). (7) A U-shaped frame (10) is slidably connected inside the second mounting groove (8). A magnetic column (4) is provided inside the U-shaped frame (10). Support columns (12) are fixedly installed at both the upper and lower ends of the magnetic column (4). The support columns (12) are rotatably connected to the inside of the side walls at the upper and lower ends of the U-shaped frame (10). The left end of the second mounting groove (8) is arc-shaped, and the side wall is in contact with the side wall of the magnetic column (4). The magnetic column (4) is magnetically attracted to the inside of the arc-shaped groove (7) of the arc-shaped magnetic block (6).

2. The double-tongue magnetic lock body structure according to claim 1, characterized in that: The main lock (1) has a lock hole (20) inside the left side wall. The lock hole (20) is located at the upper end of the second mounting groove (8). The interior of the second mounting groove (8) is connected to the interior of the lock hole (20). The wedge-shaped lock tongue (3) is slidably connected to the interior of the lock hole (20). A moving block (11) is fixedly installed on the bottom right end of the wedge-shaped lock tongue (3). A limiting block (19) is fixedly installed on the upper end of the U-shaped frame (10). The moving block (11) is located on the left side of the limiting block (19). When the magnet column (4) is connected to the inside of the arc groove (7), the moving block (11) and the side wall of the limiting block (19) are in contact with each other.

3. The double-tongue magnetic lock body structure according to claim 1, characterized in that: The upper end of the arc-shaped magnet block (6) has a groove (16) inside, and a wedge block (17) is slidably connected inside the groove (16). A tension spring (18) is symmetrically fixed between the upper end of the wedge block (17) and the upper side wall of the groove (16). The upper end of the magnet column (4) has an annular limiting groove (9), and the wedge block (17) is inserted into the limiting groove (9).

4. The double-tongue magnetic lock body structure according to claim 1, characterized in that: The upper corner of the magnet column (4) is rounded, the bottom of the wedge block (17) is rounded, and the inclined surface faces the inside of the first mounting groove (5).

5. The double-tongue magnetic lock body structure according to claim 1, characterized in that: The length of the first mounting slot (5) matches the length of the U-shaped frame (10).

6. The double-tongue magnetic lock body structure according to claim 1, characterized in that: The right sidewall of the U-shaped frame (10) is symmetrically fixed with a limiting tube (13) and a return spring (15). The inside of the limiting tube (13) is slidably connected with a fixing rod (14). The right end of the fixing rod (14) and the right end of the return spring (15) are respectively fixedly connected to the right sidewall of the second mounting groove (8).