Access control device

Abstract

The utility model discloses an access control device which comprises an access control gate machine and further comprises a face recognition machine, the bottom of the face recognition machine is installed on the access control gate machine through an angle adjusting mechanism, the face recognition machine comprises a protective shell, and a glass panel is fixedly installed on the front wall of the protective shell in a penetrating mode. During use, the fan is started, external air can be sucked into the protective shell through the air inlet hole, sent into the flow guide strip through the air outlet hole and finally blown to the glass panel through the flow channel, and an airflow wall can be formed on the surface of the glass panel to prevent dust from making contact with the glass panel, so that dust attached to the surface of the glass panel is reduced, and the service life of the glass panel is prolonged. The camera is prevented from being blocked by a large amount of dust, air entering the protective shell can be filtered through the arrangement of the filtering mechanism so as to reduce dust carried by the airflow wall, and when airflow flows through the protective shell, the airflow can be matched with the cooling fins to effectively cool the metal shell in an air cooling mode, so that the cooling effect is improved. Therefore, the operation stability of the face recognition machine is ensured.

Description

Technical Field

[0001] This utility model relates to the field of security device technology, and in particular to an access control device. Background Technology

[0002] To manage personnel, construction site dormitories typically use access control systems to manage entry and exit. The access control systems in construction site dormitories are similar in structure to those in other places, mostly consisting of access gates and facial recognition machines, to enable cardless entry and exit, and to facilitate the statistics of dormitory occupancy rate and personnel return to their dormitories.

[0003] However, due to the high level of dust in and around the construction site, the access control gates often accumulate a thick layer of dust during use, which can obstruct the cameras and affect the success rate of facial recognition. This needs to be improved.

[0004] Therefore, it is necessary to develop an access control device to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to design an access control device to solve the above-mentioned problems.

[0006] This utility model achieves the above objectives through the following technical solutions:

[0007] An access control device includes an access control gate and a facial recognition device. The bottom of the facial recognition device is mounted on the access control gate via an angle adjustment mechanism. The facial recognition device includes a protective shell, with a glass panel embedded in the front wall of the protective shell. A metal inner shell is fixedly installed inside the protective shell. A display screen and a camera are embedded in the front wall of the metal inner shell, and both the display screen and the camera are flush with the glass panel. A main board is installed inside the metal inner shell, and the main board is electrically connected to the display screen and the camera, respectively. An air inlet is provided at the lower rear wall of the protective shell, and a fan is fixedly installed inside the protective shell at a position corresponding to the air inlet. Heat dissipation fins are fixedly installed on the outer wall above the fan. An air outlet is provided through the top of the front wall of the protective shell. A guide strip is fixedly installed at the top of the front wall of the protective shell. A flow channel is provided through the guide strip, and the air inlet end of the flow channel is connected to the air outlet. The air outlet end of the flow channel is set towards the glass panel outside the camera. A filter mechanism is installed on the outer side of the rear wall of the protective shell corresponding to the air inlet. The air passage of the access control device is configured as follows: under the suction action of the fan, the external air enters the protective shell through the filter mechanism, then enters the protective shell through the air inlet, then passes upward through the heat dissipation fins, and finally passes through the air outlet and flow channel before being blown out onto the glass panel.

[0008] The beneficial effects of this utility model are as follows:

[0009] When in use, the fan draws outside air into the protective housing through the air inlet and into the air guide strip through the air outlet. Finally, the air is blown onto the glass panel through the flow channel, forming an airflow wall on the glass panel surface to block dust from contacting the glass panel, thereby reducing the amount of dust adhering to the glass panel surface and preventing the camera from being blocked by a large amount of dust. Through the setting of the filtration mechanism, the air entering the protective housing can be filtered to reduce the dust carried by the airflow wall itself. When the airflow flows through the protective housing, it can work with the heat dissipation fins to effectively cool the metal housing, thereby ensuring the stability of the face recognition machine's operation. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of an access control device;

[0011] Figure 2 This is a schematic diagram of the structure of a facial recognition device in an access control system.

[0012] Figure 3 This is a cross-sectional structural diagram of a facial recognition device in an access control system;

[0013] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0014] Figure 5 This is a schematic diagram of the angle adjustment mechanism in an access control device.

[0015] Legend: 1-Access control gate, 2-Face recognition machine, 3-Protective shell, 4-Glass panel, 5-Metal inner shell, 6-Display screen, 7-Camera, 8-Main board, 9-Heat sink, 10-Air inlet, 11-Fan, 12-Air outlet, 13-Guide strip, 14-Flow channel, 15-Positioning frame, 16-Frame, 17-Filter screen, 18-Light shield, 19-Column, 20-First hemispherical seat, 21-First bolt, 22-Second hemispherical seat, 23-Groove, 24-Moving block, 25-Rubber pad, 26-Second bolt, 27-Steel ball, 28-Connecting rod, 29-Handle, 30-Label. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0017] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0018] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0019] In the description of this utility model, it should be understood that the terms "upper", "lower", "inner", "outer", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use, or the orientation or positional relationship that is commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0021] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, terms such as "set" and "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0022] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0023] like Figure 1-3As shown, an access control device includes an access control gate 1 and a face recognition device 2. The bottom of the face recognition device 2 is mounted on the access control gate 1 via an angle adjustment mechanism. The face recognition device 2 includes a protective shell 3. A glass panel 4 is embedded in the front wall of the protective shell 3. A metal inner shell 5 is fixedly installed inside the protective shell 3. A display screen 6 and a camera 7 are embedded in the front wall of the metal inner shell 5, and both the display screen 6 and the camera 7 are attached to the glass panel 4. A main board 8 is installed inside the metal inner shell 5, and the main board 8 is electrically connected to the display screen 6 and the camera 7 respectively. An air inlet 10 is provided at the lower rear wall of the protective shell 3. A fan 11 is fixedly installed inside the protective shell 3 at the corresponding position of the air inlet 10. A heat dissipation fin 9 is fixedly installed on the outer wall above the fan 11. An air outlet 12 is provided through the top of the front wall of the protective shell 3. A guide strip 13 is fixedly installed at the top of the front wall of the protective shell 3. A flow channel 14 is provided through the guide strip 13, and the air inlet end of the flow channel 14 is connected to the air outlet 12. The air outlet end of the flow channel 14 is set towards the glass panel outside the camera 7. A filter mechanism is installed on the outer side of the rear wall of the protective shell 3 at the corresponding position of the air inlet 10. The air passage of the access control device is configured as follows: under the suction action of the fan 11, the external air enters the protective shell 3 through the filter mechanism, then enters the protective shell 3 through the air inlet, then passes upward through the heat dissipation fin 9, and then passes through the air outlet 12 and the flow channel 14 before being blown out onto the glass panel.

[0024] By adopting the above-mentioned solution, this utility model allows the fan 11 to draw outside air into the protective shell 3 through the air inlet 10 during use, and then send it into the guide strip 13 through the air outlet 12. Finally, the air is blown onto the glass panel 4 through the flow channel 14 to form an airflow wall on the surface of the glass panel 4, thereby blocking dust from contacting the glass panel 4 and reducing the amount of dust adhering to the surface of the glass panel 4. This prevents the camera 7 from being blocked by a large amount of dust. Through the setting of the filter mechanism, the air entering the protective shell 3 can be filtered to reduce the dust carried by the airflow wall itself. When the airflow flows through the protective shell 3, it can work with the heat dissipation fins 9 to effectively cool the metal shell 5, thereby ensuring the stability of the face recognition machine 2.

[0025] like Figure 2-3 As shown, in some embodiments, a light shield 18 is fixedly installed on the top outer wall of the protective shell 3, and part of the glass panel and the air guide strip 13 on the outside of the camera 7 are located inside the light shield 18. By setting the light shield 18, the influence of ambient light on the camera 7 can be reduced, and the light shield 18 can play a certain blocking effect, thereby reducing the influence of ambient wind on the airflow wall on the surface of the glass panel 4. In some embodiments, the protective shell 3 is formed into a U-shaped structure.

[0026] like Figure 3-4As shown, in some embodiments, the filtering mechanism includes a positioning frame 15, a frame 16, and a filter screen 17. The positioning frame 15 is formed as a rectangular frame structure, and its lower end is connected to the outer wall of the protective shell via a horizontal plate. A gap is formed between the inner side of the positioning frame 15 and the outer wall of the protective shell. The frame 16 is also formed as a rectangular frame structure, and the filter screen 17 is installed inside the frame 16. The frame 16 is inserted into the gap from the top, and the filter screen 17 is positioned outside the air inlet 10. The filter screen 17 filters the air entering the protective shell 3 through the air inlet 10. The cooperation between the positioning frame 15 and the frame 16 facilitates the removal, installation, and replacement of the filter screen 17 on the protective shell 3.

[0027] like Figure 2 and 3 As shown in Figure 5, in some embodiments, the angle adjustment mechanism includes a column 19 fixedly installed on the top of the access control gate 1. A first hemispherical seat 20 is fixedly installed on the top of the column 19. A second hemispherical seat 22 is fixedly connected to the outer wall of the first hemispherical seat 20 by a first bolt 21. A steel ball 27 is provided in both the first hemispherical seat 20 and the second hemispherical seat 22. A connecting rod 28 is fixedly connected to the outer wall of the steel ball 27. The top of the connecting rod 28 is fixedly connected to the protective shell 3.

[0028] Through the cooperation of the first hemispherical seat 20, the second hemispherical seat 22, and the steel ball 27, the orientation of the face recognition machine 2 can be adjusted within a wide range of angles. This allows workers of different heights to adjust the orientation of the camera 7 according to their own needs for face recognition. During adjustment, the handle 29 can be turned to deflect the steel ball and all its components.

[0029] like Figure 5 As shown, in some embodiments, a groove 23 is provided on the inner side of the second hemispherical seat 22, and a movable block 24 is slidably disposed in the groove 23. A rubber pad 25 is fixedly connected to the first end of the movable block 24. A threaded hole is provided on the outer wall of the second hemispherical seat 22, which communicates with the groove 23. A second bolt 26 is screwed into and passes through the threaded hole, and the head of the second bolt 26 contacts the second end of the movable block 24. The rubber pad 25 contacts the outer wall of the steel ball 27. By rotating the set screw 26, the movable block 24 can be pushed towards the steel ball 27 to compress the rubber pad 25, so that the rotation of the steel ball 27 needs to overcome a certain resistance, so as to prevent the face recognition machine 2 from moving relative to the access control gate 1 without human operation.

[0030] like Figure 2 and 3 As shown, in some embodiments, a handle 29 is fixedly connected to the bottom of the outer wall of the protective shell 3.

[0031] like Figure 2As shown, in some embodiments, a label 30 is provided at the bottom of the front wall of the protective shell 3, and the label 30 has a prompt such as "Pull the handle to adjust the direction" or similar, to prompt the worker to adjust the orientation of the face recognition machine 2 by using the handle 29.

[0032] like Figure 3 As shown, in some embodiments, the air outlet of the flow channel 14 is designed to gradually narrow downwards. This design aims to increase the air velocity and make it easier to blow away dust on the glass panel 4.

[0033] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An access control device, comprising an access control gate (1), characterized in that, The access control device also includes a face recognition machine (2). The bottom of the face recognition machine (2) is mounted on the access control gate (1) via an angle adjustment mechanism. The face recognition machine (2) includes a protective shell (3). A glass panel (4) is embedded in the front wall of the protective shell (3). A metal inner shell (5) is fixedly installed inside the protective shell (3). A display screen (6) and a camera (7) are embedded in the front wall of the metal inner shell (5). The display screen (6) and the camera (7) are both attached to the glass panel (4). A main board (8) is installed inside the metal inner shell (5). The main board (8) is electrically connected to the display screen (6) and the camera (7) respectively. An air inlet (10) is provided at the bottom of the rear wall of the protective shell (3). A fan (11) is fixedly installed inside the protective shell (3) at the corresponding position of the air inlet (10). The metal inner shell (5) is located at Heat dissipation fins (9) are fixedly installed on the outer wall above the fan (11). An air outlet (12) is provided through the top of the front wall of the protective shell (3). A guide strip (13) is fixedly installed at the top of the front wall of the protective shell (3). A flow channel (14) is provided through the guide strip (13). The air inlet end of the flow channel (14) is connected to the air outlet (12). The air outlet end of the flow channel (14) is set towards the glass panel outside the camera (7). A filter mechanism is installed on the outer side of the rear wall of the protective shell (3) corresponding to the air inlet (10). The air passage of the access control device is set as follows: under the suction action of the fan (11), the external air enters the protective shell (3) through the filter mechanism, then enters the protective shell (3) through the air inlet, and then passes through the heat dissipation fins (9) and then through the air outlet (12) and the flow channel (14) before being blown out onto the glass panel.

2. The access control device according to claim 1, characterized in that, A light shield (18) is fixedly installed on the top outer wall of the protective shell (3). The glass panel and the guide strip (13) on the outside of the camera (7) are located inside the light shield (18).

3. The access control device according to claim 1, characterized in that, The filtration mechanism includes a positioning frame (15), a frame (16), and a filter screen (17). The positioning frame (15) is formed as a rectangular frame structure. The lower end of the positioning frame (15) is connected to the outer wall of the protective shell through a horizontal plate. A gap is formed between the inner side of the positioning frame (15) and the outer wall of the protective shell. The frame (16) is formed as a rectangular frame structure. The filter screen (17) is installed inside the frame (16). The frame (16) is inserted into the gap from the top. The filter screen (17) is placed outside the air inlet (10).

4. The access control device according to claim 1, characterized in that, The angle adjustment mechanism includes a column (19) fixedly installed on the top of the access control gate (1). A first hemispherical seat (20) is fixedly installed on the top of the column (19). A second hemispherical seat (22) is fixedly connected to the outer wall of the first hemispherical seat (20) by a first bolt (21). A steel ball (27) is provided in both the first hemispherical seat (20) and the second hemispherical seat (22). A connecting rod (28) is fixedly connected to the outer wall of the steel ball (27). The top of the connecting rod (28) is fixedly connected to the protective shell (3).

5. The access control device according to claim 4, characterized in that, The inner side of the second hemisphere (22) is provided with a groove (23), and a movable block (24) is slidably provided in the groove (23). A rubber pad (25) is fixedly connected to the first end of the movable block (24). A threaded hole is provided on the outer wall of the second hemisphere (22), and the threaded hole communicates with the groove (23). A second bolt (26) is screwed in and passes through the threaded hole. The head of the second bolt (26) contacts the second end of the movable block (24), and the rubber pad (25) contacts the outer wall of the steel ball (27).

6. The access control device according to claim 1, characterized in that, A handle (29) is fixedly connected to the bottom of the outer wall of the protective shell (3).

7. The access control device according to claim 1, characterized in that, The outlet end of the flow channel (14) is set to gradually narrow downwards.

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