Hidden lock cylinder structure
By introducing a linkage piston pillar and sealed airbag into the hidden lock core, the problem of dust entering the lock core is solved, better protection performance and convenience of use are achieved, and the stability and practicality of the lock core are enhanced.
Patent Information
- Application Number
- CN202422080974.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-27
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-08-27
AI Technical Summary
During use, the existing hidden lock core structure is still easy to enter through the baffle gap, affecting the service life of the lock core.
The design of a linkage piston pillar and a sealed airbag is adopted. When rotating the protective rotor plate, the protective rotor plate pushes the linkage piston pillar to enter the sealed airbag and expands. The sealed airbag fits the inner wall of the protective rotor plate to prevent dust from entering; combined with the sliding and rotation of the positioning connecting column and the protective rotor plate, automatic reset and limit are achieved.
It effectively prevents dust from entering the lock core, improves the protection performance and convenience of the lock core, reduces wear, and enhances the stability and practicality of the lock core.
Smart Images
Figure CN223062193U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of concealed lock cores, in particular to a concealed lock core structure. Background Technique
[0002] The lock core adopts multiple anti-theft technologies and a variety of special-shaped anti-pulling pins to prevent technical unlocking. With the unique design of the pin and blade structure, it has a high safety performance against technical unlocking. The lock cylinder is equipped with precision code pins and special-shaped pin structures. When performing technical unlocking, the code pins and special-shaped pins must be pulled simultaneously, and the lock will automatically lock, making the technical unlocking in vain. The lock core uses a multiple combination of a variety of special-shaped marbles and can be encoded with up to billions of key numbers, thus achieving zero mutual opening in the area. The lock core is equipped with a side inward pressing side column locking device, greatly improving the ability to prevent violent forced twisting. The concealed lock core structure usually refers to a structural form in which the lock core is concealed.
[0003] The advantage of this concealed lock core structure is that it has a beautiful overall visual effect, low wind noise, and high comfort. In the actual use process, the existing concealed lock core is protected by a slidable baffle, and at the same time, the spring drives the movement of the block to limit the baffle. The baffle is convenient for blocking foreign impurities, but fine dust is still easy to enter the lock core through the gap of the baffle, thus affecting the service life of the lock core. Content of the Utility Model
[0004] The purpose of the utility model is to provide a concealed lock core structure to solve the problem that the baffle in the above background technique is convenient for blocking foreign impurities, but fine dust is still easy to enter the lock core through the gap of the baffle, thus affecting the service life of the lock core.
[0005] To achieve the above purpose, the utility model provides the following technical solution: A concealed lock core structure, including an installation housing, a groove is provided on its rear surface, a positioning opening is provided on the front surface of one end of the installation housing, a positioning connection column is provided on the inner wall of the positioning opening of the installation housing, one end of the positioning connection column penetrates through the positioning opening of the installation housing, and a protective rotating plate is installed at one end of the positioning connection column. An installation opening is provided on the front surface of the installation housing, a protective guiding plate is installed on the inner wall of the installation opening of the installation housing, a lock core body is fixedly provided on the rear surface of the installation opening of the installation housing, an anti-slip extrusion block is fixed on the rear surface of the protective rotating plate, a fixed groove is provided on the front surface of the installation housing, and a linkage sealing mechanism is provided on the surface of the installation housing, which pushes air from the communication air guide groove inside the extension pipe to the sealing airbag for expansion and sealing through the movement of the linkage piston column.
[0006] Preferably, a protrusion is provided on the front surface of one end of the installation housing. The thickness of the protrusion of the installation housing is the same as the thickness of the protective rotating plate. An arc-shaped groove is provided on the side surface of the protrusion of the installation housing, and the outer surface of one end of the protective rotating plate is arc-shaped.
[0007] With the above technical solution, the protrusion of the installation housing and the protective rotating plate are matched, which is beneficial to improving the aesthetics, and the wear is reduced through the cooperation of the protective rotating plate and the installation housing.
[0008] Preferably, the positioning connection column is designed as a cylinder, and a limiting block is provided at one end of the positioning connection column. The positioning connection column is slidably connected to the installation housing, and a spring is connected between the positioning connection column and the installation housing. The positioning connection column is rotatably connected to the protective rotating plate.
[0009] With the above technical solution, through the sliding of the positioning connection column, the positioning connection column drives the protective rotating plate to expand and contract for limiting, and the use state is changed by rotating the protective rotating plate relative to the positioning connection column.
[0010] Preferably, a keyhole is provided on the surface of the protective guide plate, and an arc-shaped groove is provided on the surface of the protective guide plate. The distance between the anti-slip extrusion block and the positioning connection column is equal to the distance between the fixed groove and the positioning connection column.
[0011] With the above technical solution, the key is guided through the arc-shaped groove of the protective guide plate, and is fixed by the engagement of the anti-slip extrusion block and the fixed groove when closed.
[0012] Preferably, the linkage sealing mechanism includes an extension pipe, which is fixed on the inner wall of the groove of the installation housing. A communicating air guide groove is opened inside the extension pipe. One end of the communicating air guide groove penetrates the surface of the fixed groove, and a linkage piston column is slidably connected to the inner wall of one end of the communicating air guide groove. A limiting groove is opened on the front surface of the installation housing, and a sealing airbag is fixed on the inner wall of the limiting groove.
[0013] With the above technical solution, the communicating air guide groove is conveniently opened through the extension pipe, so that the communicating air guide groove is communicated with the fixed groove.
[0014] Preferably, a spring is connected between the linkage piston column and the inner wall of the communicating air guide groove, and one end of the communicating air guide groove is communicated with the limiting groove.
[0015] With the above technical solution, the anti-slip extrusion block is pushed to move the linkage piston column, so that the linkage piston column pushes air from the communicating air guide groove into the limiting groove.
[0016] Preferably, the limiting groove is designed in a ring shape, and the minimum diameter of the limiting groove is greater than the diameter of the installation opening on the surface of the installation shell. The sealing airbag is designed in a ring shape, and the cavity of the sealing airbag is communicated with the communicating air guide groove.
[0017] With the above technical solution, the air in the limiting groove enters the sealing airbag, causing the sealing airbag to expand and fit the surface of the protective rotating plate, facilitating the sealing of the protective rotating plate to prevent dust from entering.
[0018] Compared with the prior art, the beneficial effects of the present utility model are as follows: This hidden lock core structure:
[0019] 1. There are a linkage piston column and a sealing airbag. When the device works, when the protective rotating plate is rotated to be shielded and hidden, the protective rotating plate pushes the linkage piston column to slide through the anti-slip extrusion block, so that the linkage piston column guides the air from the communicating air guide groove to the sealing airbag, facilitating the expansion of the sealing airbag. When the keyhole of the device is hidden, the sealing airbag fits the inner wall of the protective rotating plate, thereby improving the protection performance against dust and impurities.
[0020] 2. There are a positioning connection column and a protective rotating plate. When the device works, through the spring on the surface of the positioning connection column, it is convenient to automatically reset after pulling the positioning connection column to drive the protective rotating plate to slide, and it is beneficial to limit the protective rotating plate when unlocking the device, improving the convenience of use. Through the arc design of the protective rotating plate and the matching arc-shaped groove on the protruding installation shell, the wear generated during rotation is reduced, improving the practicality of the device.
[0021] 3. There are a protective guide plate and an anti-slip extrusion block. When the device works, the rotation of the protective guide plate is convenient for changing the use state. When the protective guide plate is rotated to be closed, the anti-slip extrusion block on the surface of the protective guide plate will correspond to the fixed groove, and by clamping the anti-slip extrusion block into the fixed groove, it is convenient to limit the protective guide plate, improving the stability of hiding the lock core of the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 It is a three-dimensional structural schematic diagram of the connection between the installation shell and the protective guide plate of the present utility model;
[0023] Figure 2 It is a three-dimensional structural schematic diagram of the connection between the installation shell and the positioning connection column of the present utility model;
[0024] Figure 3 It is a three-dimensional structural schematic diagram of the protective guide plate of the present utility model;
[0025] Figure 4 It is a three-dimensional structural schematic diagram of the connection between the protective rotating plate and the anti-slip extrusion block of the present utility model;
[0026] Figure 5Schematic three-dimensional structure diagram of the connection between the extension pipe and the linkage piston column of the present utility model;
[0027] Figure 6 The present utility model Figure 5 Enlarged structure diagram at position A in the present utility model.
[0028] In the figure: 1. Installation housing; 2. Positioning connection column; 3. Protective rotating plate; 4. Protective guide plate; 5. Lock core body; 6. Anti-slip extrusion block; 7. Fixed groove; 8. Extension pipe; 9. Linkage piston column; 10. Connecting air guide groove; 11. Limit groove; 12. Sealing airbag. Specific implementation mode
[0029] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0030] Please refer to Figures 1-6 , the present utility model provides a technical solution: a concealed lock core structure, including an installation housing 1, a positioning connection column 2, a protective rotating plate 3, a protective guide plate 4, a lock core body 5, an anti-slip extrusion block 6, a fixed groove 7, an extension pipe 8, a linkage piston column 9, a connecting air guide groove 10, a limit groove 11 and a sealing airbag 12. The installation housing 1 has a groove on its rear surface, a protrusion on the front surface of one end of the installation housing 1, the thickness of the protrusion of the installation housing 1 is the same as the thickness of the protective rotating plate 3, and an arc-shaped groove is provided on the side surface of the protrusion of the installation housing 1. The outer surface of one end of the protective rotating plate 3 is arc-shaped. When using this device, first fix this device through the installation housing 1. When unlocking is required, pull the protective rotating plate 3, so that the protective rotating plate 3 drives the protective guide plate 4 to slide out of the installation housing 1, so that the anti-slip extrusion block 6 is away from the fixed groove 7. By rotating the protective rotating plate 3 relative to the axis of the protective guide plate 4, the protective rotating plate 3 is rotated to expose the protective guide plate 4. Subsequently, the spring pulls the protective guide plate 4 to slide back to its original position, thereby limiting the rotated protective rotating plate 3, thus improving the practicability.
[0031] A positioning opening is provided on the front surface at one end of the installation housing 1. A positioning connection post 2 is provided on the inner wall of the positioning opening of the installation housing 1. One end of the positioning connection post 2 penetrates through the positioning opening of the installation housing 1, and a protective rotating plate 3 is installed at one end of the positioning connection post 2. The positioning connection post 2 is designed as a cylinder, and a limiting block is provided at one end of the positioning connection post 2. The positioning connection post 2 is slidably connected to the installation housing 1, and a spring is connected between the positioning connection post 2 and the installation housing 1. The positioning connection post 2 is rotatably connected to the protective rotating plate 3. A keyhole is provided on the surface of the protective guiding plate 4, and an arc-shaped groove is provided on the surface of the protective guiding plate 4. The distance between the anti-slip extrusion block 6 and the positioning connection post 2 is equal to the distance between the fixed groove 7 and the positioning connection post 2. The arc-shaped groove on the surface of the protective guiding plate 4 facilitates guiding the key to insert into the keyhole of the protective guiding plate 4, which is beneficial for personnel to perform blind insertion with the key and improves the practicability.
[0032] An installation opening is provided on the front surface of the installation housing 1. A protective guiding plate 4 is installed on the inner wall of the installation opening of the installation housing 1. A lock core body 5 is fixedly provided on the rear surface of the installation opening of the installation housing 1. An anti-slip extrusion block 6 is fixed on the rear surface of the protective rotating plate 3. A fixed groove 7 is provided on the front surface of the installation housing 1. The linkage sealing mechanism includes an extension pipe 8, which is fixed on the inner wall of the groove of the installation housing 1. A communicating air guide groove 10 is provided inside the extension pipe 8. One end of the communicating air guide groove 10 penetrates through the surface of the fixed groove 7, and a linkage piston column 9 is slidably connected to the inner wall of one end of the communicating air guide groove 10. A limiting groove 11 is provided on the front surface of the installation housing 1, and a sealing airbag 12 is fixed on the inner wall of the limiting groove 11. When the lock core needs to be hidden, by pulling the positioning connection post 2, the protective rotating plate 3 is not pressed by the surface of the installation housing 1. Then rotate the protective rotating plate 3 so that the anti-slip extrusion block 6 on the surface of the protective rotating plate 3 corresponds to the fixed groove 7. Then release the protective rotating plate 3, so that the spring pulls the positioning connection post 2 to slide back to its original position, and the anti-slip extrusion block 6 is engaged with the fixed groove 7, thereby limiting the protective rotating plate 3.
[0033] The surface of the installation housing 1 is provided with a linkage sealing mechanism, which pushes air from the communication air guide groove 10 inside the extension pipe 8 to the sealing airbag 12 for expansion and sealing through the movement of the linkage piston column 9. A spring is connected between the linkage piston column 9 and the inner wall of the communication air guide groove 10. One end of the communication air guide groove 10 is connected to the limit groove 11. The limit groove 11 is annularly designed, and the minimum diameter of the limit groove 11 is larger than the diameter of the installation opening on the surface of the installation housing 1. The sealing airbag 12 is annularly designed, and the cavity of the sealing airbag 12 is communicated with the communication air guide groove 10. When the protective rotating plate 3 is closed, the linkage piston column 9 is pushed to move by the anti-slip extrusion block 6, so that the linkage piston column 9 pushes air from the communication air guide groove 10 inside the extension pipe 8 into the limit groove 11. Subsequently, the air in the limit groove 11 will be introduced into the cavity of the sealing airbag 12 to make it expand, and the inner surface of the protective rotating plate 3 is fitted by the sealing airbag 12, thereby preventing external dust from entering and improving the protection performance of the device.
[0034] Working principle: When using this hidden lock core structure, the device is fixed through the installation housing 1. The protective rotating plate 3 is pulled by the spring on the surface of the positioning connecting column 2 to abut against the installation housing 1 for protection. At this time, the anti-slip extrusion block 6 is engaged with the fixed groove 7 for fixation. At the same time, the anti-slip extrusion block 6 pushes the linkage piston column 9 to slide, so that the linkage piston column 9 introduces air from the communication air guide groove 10 inside the extension pipe 8 into the limit groove 11, and the sealing airbag 12 is inflated through the limit groove 11, so that the sealing airbag 12 expands and fits the surface of the protective rotating plate 3 for sealing. When unlocking is required, the protective rotating plate 3 is pulled to drive the positioning connecting column 2 to slide out of the installation housing 1, facilitating the rotation of the protective rotating plate 3 to expose the protective guide plate 4 for use, and guiding the key through the groove of the protective guide plate 4, increasing the overall practicability.
[0035] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A concealed lock core structure, comprising a mounting housing (1) with a groove provided on its rear surface, characterized in that: A positioning opening is provided on the front surface of one end of the installation housing (1). A positioning connection column (2) is provided on the inner wall of the positioning opening of the installation housing (1). One end of the positioning connection column (2) penetrates through the positioning opening of the installation housing (1), and a protective rotating plate (3) is installed at one end of the positioning connection column (2). An installation opening is provided on the front surface of the installation housing (1). A protective guiding plate (4) is installed on the inner wall of the installation opening of the installation housing (1). A lock core body (5) is fixedly provided on the rear surface of the installation opening of the installation housing (1). An anti-slip extrusion block (6) is fixed on the rear surface of the protective rotating plate (3). A fixed groove (7) is formed on the front surface of the installation housing (1). A linkage sealing mechanism is provided on the surface of the installation housing (1), and it pushes air from the communication air guide groove (10) inside the extension pipe (8) to the sealing airbag (12) through the movement of the linkage piston column (9) for inflation and sealing.
2. The hidden lock cylinder structure according to claim 1, characterized in that: A protrusion is provided on the front surface of one end of the installation housing (1). The thickness of the protrusion of the installation housing (1) is the same as the thickness of the protective rotating plate (3). An arc-shaped groove is provided on the side surface of the protrusion of the installation housing (1). The outer surface of one end of the protective rotating plate (3) is arc-shaped.
3. A hidden lock cylinder structure according to claim 1, characterized in that: The positioning connection column (2) is designed as a cylinder, and a limiting block is provided at one end of the positioning connection column (2). The positioning connection column (2) is slidably connected to the installation housing (1), and a spring is connected between the positioning connection column (2) and the installation housing (1). The positioning connection column (2) is rotatably connected to the protective rotating plate (3).
4. A concealed lock cylinder structure according to claim 1, characterized in that: A keyhole is provided on the surface of the protective guiding plate (4), and an arc-shaped groove is provided on the surface of the protective guiding plate (4). The distance between the anti-slip extrusion block (6) and the positioning connection column (2) is equal to the distance between the fixed groove (7) and the positioning connection column (2).
5. A hidden lock core structure according to claim 1, characterized in that: The linkage sealing mechanism includes an extension pipe (8), which is fixed on the inner wall of the groove of the installation housing (1). A communication air guide groove (10) is formed inside the extension pipe (8). One end of the communication air guide groove (10) penetrates through the surface of the fixed groove (7), and a linkage piston column (9) is slidably connected to the inner wall of one end of the communication air guide groove (10). A limiting groove (11) is formed on the front surface of the installation housing (1), and a sealing airbag (12) is fixed on the inner wall of the limiting groove (11).
6. A concealed lock core structure according to claim 5, characterized in that: A spring is connected between the linkage piston column (9) and the inner wall of the communication air guide groove (10). One end of the communication air guide groove (10) is communicated with the limiting groove (11).
7. A concealed lock cylinder structure according to claim 5, characterized in that: The limiting groove (11) is annularly designed, and the minimum diameter of the limiting groove (11) is larger than the diameter of the installation opening on the surface of the installation housing (1). The sealing airbag (12) is annularly designed, and the cavity of the sealing airbag (12) is communicated with the communication air guide groove (10).