Magnetic type lock body

Abstract

The utility model discloses a magnetic attraction type lock body which comprises a lock shell and a spring bolt stretching out and drawing back relative to the lock shell, a sliding frame connected with the spring bolt and a dial wheel piece linked with the sliding frame are arranged in the lock shell, the sliding frame can be driven to slide by rotating the dial wheel piece, and the dial wheel piece comprises a driven dial wheel and a driving dial wheel which are arranged in the stretching-out and drawing-back direction of the spring bolt. The driven dial wheel and the driving dial wheel are rotationally arranged in the lock shell, the driving dial wheel and the driven dial wheel are in meshing transmission, the driving dial wheel does not interfere with movement of the sliding frame when rotating, and the dial wheel rotates along with the driving dial wheel and can push the sliding frame to enable the spring bolt to retract into the lock shell. The sliding frame can be indirectly driven to slide by rotating the driving shifting wheel by a small angle, so that the lock tongue retracts into the lock shell.

Description

Technical Field

[0001] This utility model relates to the field of door lock technology, and in particular to a magnetic lock body. Background Technology

[0002] The bolt is a crucial component of a lock, and single-mortise locks have a wide range of applications, such as room door locks, kitchen locks, bathroom locks, and balcony locks. However, when used as room door locks, single-mortise locks generally offer poor security, primarily due to weak resistance to prying and picking. Furthermore, most single-mortise locks have excessively large bolt travel, and the handle rotation angle is also quite large, sometimes exceeding 75°. This makes the process time-consuming and laborious for consumers.

[0003] Chinese patent application CN200820046733.9 discloses a die-cast single-tongue lock body with a handle that can rotate 45° and an anti-jamming tongue, belonging to the hardware lock industry. It features a cylindrical anti-jamming tongue mounted inside the single-tongue lock body, a protrusion at the top of the latch, and a latch stop on the inner bottom surface of the main cover plate. These components, in conjunction with other parts, achieve anti-pry, anti-jamming, and anti-technical opening, requiring only a 45° rotation of the handle.

[0004] The problem with the aforementioned patent is that the existing lock handle can only rotate 45°. Although the rotation angle has been reduced compared to the existing lock body, there is still room for improvement. Based on this problem, the internal structure of the lock body is optimized. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings and deficiencies of the existing technology and to provide a magnetic lock body.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a magnetic lock body, including a lock shell, a bolt that extends and retracts relative to the lock shell, a sliding frame connected to the bolt and a dial component linked to the sliding frame are provided inside the lock shell, rotating the dial component can drive the sliding frame to slide, the dial component includes a driven dial and a driving dial arranged along the extension and retraction direction of the bolt, the driven dial and the driving dial are rotatably disposed inside the lock shell and the driving dial and the driven dial are engaged in transmission, the driving dial does not interfere with the movement of the sliding frame when it rotates, the driven dial can push the sliding frame to retract the bolt into the lock shell when it rotates with the driving dial.

[0007] As a preferred embodiment of this utility model, the active dial is provided with a plurality of active teeth, and a first tooth groove is formed between adjacent active teeth. The driven dial is provided with a plurality of driven teeth that mesh with the first tooth groove, and a second tooth groove is formed between adjacent driven teeth.

[0008] As a preferred embodiment of this utility model, the active teeth are provided with three teeth, and the driven teeth are provided with two teeth.

[0009] As a preferred technical solution of this utility model, a limiting member is provided at one end of the sliding frame relative to the locking tongue. The limiting member is provided with a limiting surface for blocking the rotation of the active tooth. The limiting surface is located on the rotation path of the active tooth. When the active tooth abuts against the limiting surface, the rotation angle of the active dial is 25°-β-35°.

[0010] As a preferred embodiment of this utility model, the limiting member is L-shaped, the limiting member is fixed inside the lock housing and the limiting member and the inner wall of the lock housing form a limiting opening, and the end of the limiting opening that is relatively far away from the sliding frame forms the limiting surface.

[0011] As a preferred technical solution of this utility model, the included angle between two adjacent driving teeth is 25°<α<35°, and the included angle between two adjacent driven gears is 2α.

[0012] In a preferred embodiment of this invention, the driven dial and the driving dial are collinear and parallel.

[0013] As a preferred technical solution of this utility model, the sliding frame includes sliding plates located on both sides of the dial wheel, the locking tongue is fixed to the front end of the two sliding plates, the sliding plates are provided with long grooves, and the driven dial wheel is provided with a paddle, which can abut against the rear end of the long groove when it rotates.

[0014] As a preferred embodiment of this utility model, a torsion spring is sleeved on the active dial, and a positioning block located at the rear end of the active dial is provided inside the lock housing. The two torsion ends of the torsion spring are respectively placed on both sides of the positioning block.

[0015] As a preferred embodiment of this utility model, the lock housing is provided with a through hole corresponding to the position of the driven dial, and the driven dial is provided with a through hole corresponding to the through hole.

[0016] In summary, the beneficial effects of this utility model are as follows: an active dial wheel and a driven dial wheel are linked together inside the lock housing along the extension and retraction direction of the bolt. A small-angle rotation of the active dial wheel can indirectly drive the sliding frame to move, causing the bolt to retract into the lock housing. With the double dial wheel structure, the length of the sliding frame can be shortened. Therefore, only a small-angle rotation of the active dial wheel is needed to make the driven dial wheel move in coordination with the sliding frame, making the handle rotation easy and effortless. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of this utility model without the top shell;

[0019] Figure 3 This is a schematic diagram of the structure of this utility model without the lower shell;

[0020] Figure 4 This is a structural schematic diagram of the dial component in this utility model.

[0021] Reference numerals: 1. Lock case; 2. Lock tongue; 3. Upper case; 4. Lower case; 5. Sliding frame; 6. Dial wheel assembly; 7. Driven dial wheel; 8. Driving dial wheel; 9. Driving tooth; 10. First tooth groove; 11. Driven tooth; 12. Second tooth groove; 13. Limiting component; 14. Limiting surface; 15. Limiting opening; 16. Long groove; 17. Dial plate; 18. Torsion spring; 19. Positioning block; 20. Torsion end; 21. Through hole; 22. Through hole. Detailed Implementation

[0022] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments and accompanying drawings. However, the following embodiments are merely preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described in the implementation plan without creative effort are all within the protection scope of this utility model.

[0023] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0024] like Figure 1-4 The magnetic lock body shown includes a lock shell 1 (an upper shell 3 and a lower shell 4 are assembled to form the lock shell 1), a bolt 2 that extends and retracts relative to the lock shell 1, and the bolt 2 is a magnetic bolt. The lock shell 1 is provided with a sliding frame 5 connected to the bolt 2 and a dial 6 that is linked to the sliding frame 5. Rotating the dial 6 can drive the sliding frame 5 to slide. The dial 6 includes a driven dial 7 and a driven dial 8 arranged along the extension and retraction direction of the bolt 2. The driven dial 7 and the driven dial 8 are collinear and parallel. The driven dial 7 and the driven dial 8 are rotatably arranged in the lock shell 1 and are engaged in transmission. When the driven dial 8 rotates, it does not interfere with the movement of the sliding frame 5. The driven dial 7 rotates with the driven dial 8 and can push the sliding frame 5 to retract the bolt 2 into the lock shell 1. In this embodiment, the driven dial 8 is provided with a square shaft hole, and the square shaft is inserted into the square shaft hole and connected to the handle.

[0025] Inside the lock housing 1, there are a drive wheel 8 and a driven wheel 7 that are linked together along the extension and retraction direction of the bolt 2. Rotating the drive wheel 8 at a small angle can indirectly drive the sliding frame 5 to move, so that the bolt 2 retracts into the lock housing 1. With the structure of double wheels, the length of the sliding frame 5 can be shortened. Therefore, only a small angle rotation of the drive wheel 8 is needed to make the driven wheel 7 move in coordination with the sliding frame 5, making the handle easy and effortless to turn.

[0026] The active dial 8 is provided with several active teeth 9, and a first tooth groove 10 is formed between adjacent active teeth 9. The driven dial 7 is provided with several driven teeth 11 that mesh with the first tooth groove 10, and a second tooth groove 12 is formed between adjacent driven teeth 11. A torsion spring 18 is sleeved on the active dial 8. A positioning block 19 located at the rear end of the active dial 8 is provided inside the lock housing 1. The two torsion ends 20 of the torsion spring 18 are respectively placed on both sides of the positioning block 19. In this embodiment, there are three active teeth 9 and two driven teeth 11. When the lock tongue 2 does not extend out of the lock housing 1, there is no need to rotate the active dial 8. The active dial 8 is centered under the action of the torsion spring 18, and the active tooth 9 in the center of the active dial 8 is exactly located in the middle position of the two driven teeth 11.

[0027] A limiting member 13 is provided at one end of the sliding frame 5 relative to the locking tongue 2. The limiting member 13 is provided with a limiting surface 14 for blocking the clockwise or counterclockwise rotation of the driving tooth 9. The limiting surface 14 is located on the rotation path of the driving tooth 9. When the driving tooth 9 abuts against the limiting surface 14, the rotation angle of the driving wheel 8 is 25°-β-35°. In this embodiment, β is preferably 28°. The included angle between two adjacent driving teeth 9 is 25°<α<35°, and the included angle between two adjacent driven teeth 11 is 2α. α is preferably 28°.

[0028] The limiting member 13 is L-shaped. The limiting member 13 is fixed inside the lock housing 1 and the limiting member 13 and the inner wall of the lock housing 1 form a limiting opening 15. The end of the limiting opening 15 that is relatively far away from the sliding frame 5 forms the limiting surface 14.

[0029] The sliding frame 5 includes sliding plates located on both sides of the dial wheel 6. The locking tongue 2 is fixed to the front end of the two sliding plates. The sliding plates are provided with long grooves 16. The driven dial wheel 7 is provided with a paddle 17, and the paddle 17 can abut against the rear end of the long groove 16 when it rotates. In this embodiment, when the locking tongue 2 retracts into the lock housing 1, the paddle 17 is located at the front end of the long groove 16. When the locking tongue 2 extends out of the lock housing 1, the paddle 17 corresponds to the rear end of the long groove 16.

[0030] A through hole 21 is provided on the lock housing 1 corresponding to the position of the driven dial 7, and a through hole 22 corresponding to the through hole 21 is provided on the driven dial 7. The lock body is fixed to the door frame by fasteners.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the utility model as defined by the appended claims and their equivalents.

Claims

1. A magnetic lock body, comprising a lock shell (1), a bolt (2) that extends and retracts relative to the lock shell (1), a sliding frame (5) connected to the bolt (2) and a dial (6) linked to the sliding frame (5) are provided inside the lock shell (1), rotating the dial (6) can drive the sliding frame (5) to slide, characterized in that: The dial component (6) includes a driven dial (7) and a driving dial (8) arranged along the extension and retraction direction of the latch (2). The driven dial (7) and the driving dial (8) are rotatably disposed in the lock housing (1) and the driving dial (8) and the driven dial (7) are engaged in transmission. When the driving dial (8) rotates, it does not interfere with the movement of the sliding frame (5). The driven dial (7) rotates with the driving dial (8) and can push the sliding frame (5) to retract the latch (2) into the lock housing (1).

2. The magnetic lock body according to claim 1, characterized in that: The active dial (8) is provided with a plurality of active teeth (9), and a first tooth groove (10) is formed between adjacent active teeth (9). The driven dial (7) is provided with a plurality of driven teeth (11) that mesh with the first tooth groove (10), and a second tooth groove (12) is formed between adjacent driven teeth (11).

3. The magnetic lock body according to claim 2, characterized in that: The active tooth (9) is provided with three teeth, and the driven tooth (11) is provided with two teeth.

4. The magnetic lock body according to claim 2 or 3, characterized in that: The sliding frame (5) is provided with a limiting member (13) at one end relative to the locking tongue (2). The limiting member (13) is provided with a limiting surface (14) for blocking the rotation of the active tooth (9). The limiting surface (14) is located on the rotation path of the active tooth (9). When the active tooth (9) abuts against the limiting surface (14), the rotation angle of the active dial (8) is 25°-β-35°.

5. The magnetic lock body according to claim 4, characterized in that: The limiting member (13) is L-shaped and is fixed inside the lock housing (1). The limiting member (13) and the inner wall of the lock housing (1) form a limiting opening (15). The limiting opening (15) forms the limiting surface (14) at the end that is relatively away from the sliding frame (5).

6. The magnetic lock body according to claim 2 or 3, characterized in that: The included angle between two adjacent driving teeth (9) is 25° < α < 35°, and the included angle between two adjacent driven teeth (11) is 2α.

7. The magnetic lock body according to claim 1, characterized in that: The driven dial (7) and the driving dial (8) are collinear and parallel.

8. The magnetic lock body according to claim 1, characterized in that: The sliding frame (5) includes sliding plates located on both sides of the dial wheel (6), the locking tongue (2) is fixed to the front end of the two sliding plates, the sliding plates are provided with long grooves (16), the driven dial wheel (7) is provided with a paddle (17) and the paddle (17) can abut against the rear end of the long groove (16) when it rotates.

9. The magnetic lock body according to claim 1, characterized in that: A torsion spring (18) is fitted on the active dial (8), and a positioning block (19) located at the rear end of the active dial (8) is provided inside the lock housing (1). The two torsion ends (20) of the torsion spring (18) are respectively placed on both sides of the positioning block (19).

10. The magnetic lock body according to claim 1, characterized in that: The lock housing (1) is provided with a through hole (21) corresponding to the position of the driven dial (7), and the driven dial (7) is provided with a through hole (22) corresponding to the through hole (21).

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