Simple anti-disassembly intelligent access control talkback terminal

Abstract

The utility model discloses a simple anti-disassembly intelligent access control talkback terminal which comprises a terminal body, a rear cover and a bolting plate, and the side face of the terminal body is provided with an anti-disassembly front connecting assembly used for being connected with the rear cover; the front connecting assembly comprises a clamping column, a shielding column and a limiting module, the clamping column is slidably arranged between the terminal body and the rear cover, and the shielding column is slidably arranged on the inner side of the terminal body; the side face of the rear cover is provided with a rear connecting assembly used for being connected with the bolting plate and capable of preventing disassembly, the lifting column drives the limiting inclined block to rotate, so that the inclined face of the limiting inclined block is driven to make contact with the double-circular-truncated-cone, at the moment, the rear cover is driven to approach the bolting plate, the limiting inclined block moves to the position between the limiting column and the double-circular-truncated-cone, and then the rear cover is driven to move outwards; at the moment, the limiting inclined block drives the double circular truncated cones to move towards the semi-circle body, so that the limiting inclined block is separated from the semi-circle body through the double circular truncated cones, unconventional connection is formed through simple machinery, and the situation that the whole intercom terminal is maliciously taken away by people due to clamping connection is avoided.

Description

Technical Field

[0001] This utility model relates to the field of access control intercom terminal technology, specifically a simple and tamper-proof intelligent access control intercom terminal. Background Technology

[0002] Intelligent access control intercom terminals are smart security products that integrate multiple functions such as access control, intercom communication, and video surveillance. With the development of intelligent security technology, access control intercom terminals have become indispensable equipment in modern buildings. Traditional access control intercom terminals are usually installed outside the door, making them vulnerable to malicious disassembly or damage, leading to security risks and economic losses. Existing methods use anti-tamper modules connected to circuit boards for tamper protection, but these are relatively complex.

[0003] In the prior art, the authorized announcement number CN 217360858U discloses a cloud intercom access control terminal. The cloud intercom access control terminal has a display screen on its panel, a face recognition device above the display screen, and an ID card reader, a fingerprint reader, and an IC card reader below the display screen.

[0004] The aforementioned patents are installed outside the door during use, making them vulnerable to malicious disassembly or damage, leading to safety hazards and economic losses. Therefore, we need to propose a simple and tamper-proof intelligent access control intercom terminal. Utility Model Content

[0005] The purpose of this invention is to provide a simple and tamper-proof intelligent access control intercom terminal. By adsorbing the snap-fit ​​post and the blocking post, the blocking post is moved into the opening slot, and then the snap-fit ​​post is moved into the snap-fit ​​slot between the terminal body and the back cover. The blocking post enters the snap-fit ​​slot under gravity, thereby connecting the terminal body and the back cover through the snap-fit ​​post. At the same time, the blocking post blocks the snap-fit ​​post to achieve the tamper-proof effect, thus solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a simple and detachable intelligent access control intercom terminal, comprising a terminal body, a back cover and a bolt plate, wherein a number of anti-theft bolts are provided through the side of the bolt plate;

[0007] The terminal body has a front connection component on its side for connecting to the back cover and is detachable.

[0008] The front connection component includes a snap-fit ​​post, a blocking post, and a limiting module. The snap-fit ​​post is slidably disposed between the terminal body and the rear cover, and the blocking post is slidably disposed inside the terminal body.

[0009] The rear cover has a rear connection assembly on its side for connection with the bolt plate and is detachable.

[0010] The rear connection assembly includes a fixed post, a double truncated cone, and a snap-fit ​​module. The fixed post is fixedly disposed on the side of the rear cover, and the double truncated cone is slidably sleeved on the outer arc surface of the fixed post.

[0011] Preferably, the limiting module includes a rotating disk and a rotating column. The rotating disk is rotatably disposed inside the terminal body. The rotating column rotatably passes through the terminal body and is fixedly connected to the rotating disk. The inner side of the rotating disk is provided with a set of opening slots corresponding to the blocking column. The inner side of the rotating disk is provided with several sets of false slots corresponding to the blocking column. The terminal body and the back cover are provided with snap-fit ​​slots corresponding to the snap-fit ​​column.

[0012] Preferably, the snap-fit ​​module includes a limiting post, a semi-circular body, a limiting inclined block, and a lifting post. The limiting post is fixedly sleeved on the outer arc surface of the fixing post. The semi-circular body is fixedly disposed at the end of the fixing post away from the back cover. The double truncated cone is slidably disposed between the limiting post and the semi-circular body. The inner side of the bolt plate is provided with a moving groove corresponding to the semi-circular body.

[0013] Preferably, the limiting inclined block is fixedly disposed at the bottom end of the lifting column, and the limiting inclined block and the lifting column are slidably disposed inside the bolted plate, and the inclined surface of the limiting inclined block is configured as an inclined block corresponding to the inclined surface of the double truncated cone.

[0014] Preferably, the lifting column rotates through the bolted plate, and a compression spring is fixedly sleeved inside the bolted plate and located on the outer arc surface of the lifting column, and the lifting column is located between the double frustum and the semicircle.

[0015] Preferably, the bolt plate has several sets of scale strips on its side and around the lifting column, and the terminal body has several sets of scale rulers on its side and around the rotating column.

[0016] Preferably, a display screen and a camera are provided on the front side of the terminal body, and several sets of buttons are provided on the front side of the terminal body and between the display screen and the camera.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This utility model uses the adsorption of the snap-fit ​​post and the blocking post to move the blocking post into the opening slot, and then moves the snap-fit ​​post into the snap-fit ​​slot between the terminal body and the back cover. The blocking post enters the snap-fit ​​slot under gravity, thereby connecting the terminal body and the back cover through the snap-fit ​​post. At the same time, the blocking post blocks the snap-fit ​​post, and the rotating disk needs to be rotated to the position corresponding to the opening slot and the snap-fit ​​slot. At the same time, the magnet needs to drive the snap-fit ​​post and the snap-fit ​​slot to move, thereby preventing outsiders from maliciously disassembling the terminal body and the back cover.

[0019] 2. This utility model uses a lifting column to drive the limiting inclined block to rotate, thereby causing the inclined surface of the limiting inclined block to contact the double truncated cone. At this time, the back cover is driven to move closer to the bolt plate, and the limiting inclined block moves between the limiting column and the double truncated cone. Then, the back cover is driven to move outward. At this time, the limiting inclined block drives the double truncated cone to move towards the semi-circle, so that the limiting inclined block is separated from the semi-circle through the double truncated cone. A simple mechanical method is used to form an unconventional connection, avoiding the use of snap-fit ​​connections that could lead to the entire intercom terminal being maliciously taken away.

[0020] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures pointed out in the description and the drawings. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a cross-sectional view of the overall structure of this utility model;

[0023] Figure 3 This utility model Figure 2 Enlarged view of the structure at point A in the middle;

[0024] Figure 4 This utility model Figure 2 Enlarged view of the structure at point B in the middle.

[0025] In the diagram: 1. Terminal body; 2. Back cover; 3. Bolting plate; 4. Anti-theft bolt; 5. Display screen; 6. Button; 7. Camera; 8. Moving slot; 9. Fixing post; 10. Limiting post; 11. Double frustum; 12. Semicircle; 13. Limiting wedge; 14. Lifting post; 15. Compression spring; 16. Snap-fit ​​post; 17. Snap-fit ​​groove; 18. Blocking post; 19. Rotating disc; 20. Opening groove; 21. Dummy groove; 22. Rotating post. Detailed Implementation

[0026] 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.

[0027] This utility model provides: a simple and tamper-proof intelligent access control intercom terminal, such as... Figure 1-4As shown, the device includes a terminal body 1, a back cover 2, and a bolt plate 3. Several sets of anti-theft bolts 4 are installed through the side of the bolt plate 3. A display screen 5 and a camera 7 are installed on the front of the terminal body 1. Several sets of buttons 6 are installed on the front of the terminal body 1 and between the display screen 5 and the camera 7. The display screen 5, buttons 6, and camera 7 are provided to facilitate the use of the terminal body 1. The bolt plate 3 is bolted to the required installation position by the anti-theft bolts 4, thereby preventing the bolt plate 3 from being removed as a whole.

[0028] Preferably, the terminal body 1 has a front connection component on its side for connecting to the back cover 2 and is detachable. The front connection component includes a snap-fit ​​post 16, a blocking post 18, and a limiting module. The snap-fit ​​post 16 is slidably disposed between the terminal body 1 and the back cover 2, and the blocking post 18 is slidably disposed inside the terminal body 1. The terminal body 1 and the back cover 2 have snap-fit ​​grooves 17 corresponding to the snap-fit ​​post 16 inside. When the snap-fit ​​post 16 is located on the side of the snap-fit ​​groove 17 close to the back cover 2, the snap-fit ​​post 16 is located between the terminal body 1 and the back cover 2. The snap-fit ​​post 16 is set as an arc-shaped ring to prevent the terminal body 1 and the back cover 2 from being slid apart. The terminal body 1 and the back cover 2 are provided with protrusions and grooves to ensure that the terminal body 1 and the back cover 2 can only be opened by sliding, preventing the terminal body 1 and the back cover 2 from being disassembled from other directions.

[0029] Furthermore, the limiting module includes a rotating disk 19 and a rotating column 22. The rotating disk 19 is rotatably disposed inside the terminal body 1. The rotating column 22 rotatably passes through the terminal body 1 and is fixedly connected to the rotating disk 19. A set of opening slots 20 corresponding to the blocking column 18 is opened on the inner side of the rotating disk 19. Several sets of dummy slots 21 corresponding to the blocking column 18 are opened on the inner side of the rotating disk 19. The length of the opening slot 20 is greater than the length of the blocking column 18, and the length of the dummy slot 21 is less than the length of the blocking column 18. Both the locking column 16 and the blocking column 18 are made of metal material, so that the locking column 16 and the blocking column 18 can be moved by a magnet. At the same time, the rotating disk 19 can rotate. Only when the opening slot 20 is connected to the locking slot 17 can the blocking column 18 be driven into the opening slot 20 to open the terminal body 1 and the back cover 2, thereby further preventing the terminal body 1 and the back cover 2 from being maliciously opened.

[0030] Furthermore, the rear cover 2 has a rear connection assembly on its side for connection with the bolt plate 3 and is detachable; the rear connection assembly includes a fixing post 9, a double truncated cone 11 and a snap-fit ​​module. The fixing post 9 is fixedly set on the side of the rear cover 2, and the double truncated cone 11 is slidably sleeved on the outer arc surface of the fixing post 9. The double truncated cone 11 is configured to connect the two sets of truncated cones with the larger diameter side, and the two sides of the double truncated cone 11 are the two sets of truncated cones with the smaller diameter side, thereby ensuring that the limiting inclined block 13 can move along the double truncated cone 11 and drive the double truncated cone 11 to move along the fixing post 9.

[0031] It is worth noting that the snap-fit ​​module includes a limiting post 10, a semi-circular body 12, a limiting inclined block 13, and a lifting post 14. The limiting post 10 is fixedly sleeved on the outer arc surface of the fixing post 9. The semi-circular body 12 is fixedly disposed at the end of the fixing post 9 away from the rear cover 2, and the double truncated cone 11 is slidably disposed between the limiting post 10 and the semi-circular body 12. The inner side of the bolt plate 3 is provided with a moving groove 8 corresponding to the semi-circular body 12. Several sets of scale strips are provided on the side of the bolt plate 3 and around the lifting post 14, and several sets of scale rulers are provided on the side of the terminal body 1 and around the rotating post 22, thereby... To facilitate staff in recording the required rotation angles of the lifting column 14 and the rotating column 22, a limiting column 10 is set to limit the double frustum 11. The diameter of the semicircular body 12 is consistent with the larger diameter of the side of the double frustum 11. At the same time, the internal space of the moving groove 8 is large, ensuring that after the rear cover 2 and the bolt plate 3 are connected, the semicircular body 12 can still move into the moving groove 8. The rear cover 2 and the bolt plate 3 are connected by the semicircular body 12 being inserted into the moving groove 8. At this time, the rear cover 2 and the bolt plate 3 do not contact each other, ensuring that the rear cover 2 can continue to move into the bolt plate 3.

[0032] Specifically, the limiting inclined block 13 is fixedly installed at the bottom end of the lifting column 14, and the limiting inclined block 13 and the lifting column 14 are slidably installed inside the bolt plate 3. The inclined surface of the limiting inclined block 13 is set to be an inclined block corresponding to the inclined surface of the double truncated cone 11. The lifting column 14 rotates through the bolt plate 3. A compression spring 15 is fixedly sleeved inside the bolt plate 3 and located on the outer arc surface of the lifting column 14. The lifting column 14 is located between the double truncated cone 11 and the semi-circular body 12. A specific tool is inserted into the groove at the top of the lifting column 14, thereby driving the lifting column 14 to rotate, which in turn drives the inclined surface of the limiting inclined block 13 to contact the inclined surface of the double truncated cone 11. Then the rear cover 2 moves outward. At this time, the limiting inclined block 13 drives the double truncated cone 11 to move towards the semi-circular body 12, so that the limiting inclined block 13 moves to the inside of the semi-circular body 12 through the double truncated cone 11. A simple mechanical connection is formed to avoid the use of snap-fit, which would cause the entire intercom terminal to be maliciously taken away.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A simple, tamper-proof intelligent access control intercom terminal, characterized in that, Includes: terminal body (1), back cover (2) and bolt plate (3), wherein a number of anti-theft bolts (4) are provided through the side of the bolt plate (3); The terminal body (1) is provided with a front connection component on its side for connecting to the rear cover (2) and is detachable. The front connection component includes a snap-fit ​​post (16), a blocking post (18) and a limiting module. The snap-fit ​​post (16) is slidably disposed between the terminal body (1) and the rear cover (2), and the blocking post (18) is slidably disposed inside the terminal body (1). The side of the rear cover (2) is provided with a rear connection assembly for connecting to the bolt plate (3) and is detachable; The rear connection assembly includes a fixed post (9), a double truncated cone (11), and a snap-fit ​​module. The fixed post (9) is fixedly disposed on the side of the rear cover (2), and the double truncated cone (11) is slidably sleeved on the outer arc surface of the fixed post (9).

2. The simple and tamper-proof intelligent access control intercom terminal according to claim 1, characterized in that: The limiting module includes a rotating disk (19) and a rotating column (22). The rotating disk (19) is rotatably disposed inside the terminal body (1). The rotating column (22) rotatably passes through the terminal body (1) and is fixedly connected to the rotating disk (19). A set of opening slots (20) corresponding to the blocking column (18) is opened inside the rotating disk (19). Several sets of false slots (21) corresponding to the blocking column (18) are opened inside the rotating disk (19). The terminal body (1) and the back cover (2) are provided with snap-fit ​​slots (17) corresponding to the snap-fit ​​column (16).

3. The simple and tamper-proof intelligent access control intercom terminal according to claim 2, characterized in that: The snap-fit ​​module includes a limiting post (10), a semi-circular body (12), a limiting inclined block (13), and a lifting post (14). The limiting post (10) is fixedly sleeved on the outer arc surface of the fixing post (9). The semi-circular body (12) is fixedly disposed at one end of the fixing post (9) away from the back cover (2). The double truncated cone (11) is slidably disposed between the limiting post (10) and the semi-circular body (12). The inner side of the bolt plate (3) is provided with a moving groove (8) corresponding to the semi-circular body (12).

4. A simple, tamper-proof intelligent access control intercom terminal according to claim 3, characterized in that: The limiting inclined block (13) is fixedly set at the bottom end of the lifting column (14), and the limiting inclined block (13) and the lifting column (14) are slidably set inside the bolt plate (3). The inclined surface of the limiting inclined block (13) is set as an inclined block corresponding to the inclined surface of the double truncated cone (11).

5. A simple, tamper-proof intelligent access control intercom terminal according to claim 4, characterized in that: The lifting column (14) rotates through the bolted plate (3), and a compression spring (15) is fixedly sleeved inside the bolted plate (3) and located on the outer arc surface of the lifting column (14). The lifting column (14) is located between the double frustum (11) and the semicircle (12).

6. A simple, tamper-proof intelligent access control intercom terminal according to claim 2, characterized in that: The bolt plate (3) has several sets of scale strips on its side and around the lifting column (14), and the terminal body (1) has several sets of scale rulers on its side and around the rotating column (22).

7. A simple, tamper-proof intelligent access control intercom terminal according to claim 1, characterized in that: The terminal body (1) is provided with a display screen (5) and a camera (7) on the front side, and a number of buttons (6) are provided on the front side of the terminal body (1) and between the display screen (5) and the camera (7).

Images