A door access controller

Abstract

The utility model discloses a kind of access control machines, including shell and body body, shell is equipped with containing cavity, body body is located in containing cavity, body body includes middle frame, back cover, lens transparent cover, key assembly and card swiping plate cover plate, first waterproof ring sealing is passed through being equipped between middle frame and back cover, lens transparent cover and middle frame are sealed through the second waterproof ring sealing being equipped between, third waterproof ring sealing is passed through being equipped between card swiping plate cover plate and middle frame, key assembly includes key main body and key pressing plate, waterproof rib position sealing is passed through being equipped between key main body and middle frame, key pressing plate is located the surface of waterproof rib position and key pressing plate is connected with middle frame clamping connection. The utility model can resist outdoor storm and other extreme environment without additional installation rain cover, avoid rainwater infiltration to cause internal component failure, and simultaneously can flexibly adapt to the demand of different building or family unit to different key quantity.

Description

Technical Field

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

[0002] With the continuous development of the security industry, access control machines, as core equipment for personnel access management and security protection, have been widely used in outdoor building entrances, community unit doors, and other scenarios. In outdoor environments, access control machines are constantly exposed to harsh conditions such as rain and moisture. To ensure normal operation, current technologies typically include an additional rain cover to prevent rainwater from directly contacting the machine. However, this additional rain cover not only increases the overall installation cost and space required, but also necessitates regular cleaning and maintenance. Otherwise, accumulated dust and debris can affect the button operation and recognition functions of the access control machine, causing inconvenience to users.

[0003] Meanwhile, the number of residents varies across different buildings or apartment units, leading to different requirements for the number of buttons on access control machines. Existing access control machines mostly employ a fixed button design; once manufactured, the number and arrangement of buttons cannot be adjusted. This makes it difficult for the same model of access control machine to adapt to scenarios with varying numbers of residents, resulting in low equipment versatility and flexibility. While some improved access control machines attempt to implement button replacement functionality, they often use screw connections to fix the button components. Replacement requires the use of screwdrivers and other tools to remove the screws, making the operation cumbersome and time-consuming. This significantly reduces maintenance efficiency, especially in scenarios requiring batch replacement of buttons on access control machines in different buildings, and fails to meet users' needs for quickly adjusting the number of buttons. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide an access control machine.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] This utility model provides an access control machine, including a housing and a main body. The housing has a receiving cavity, and the main body is disposed within the receiving cavity. The main body includes a middle frame, a rear cover, a lens cover, a button assembly, and a card reader cover. The middle frame and the rear cover are sealed by a first waterproof ring, the lens cover and the middle frame are sealed by a second waterproof ring, and the card reader cover and the middle frame are sealed by a third waterproof ring. The button assembly includes a button body and a button pressing plate. The button body and the middle frame are sealed by a waterproof rib, and the button pressing plate is located on the surface of the waterproof rib and is snap-fitted to the middle frame.

[0007] Furthermore, the button pressing plate is provided with a buckle, and the middle frame is provided with a fixing hole, and the buckle is engaged in the fixing hole.

[0008] Furthermore, the buckle includes an elastic arm and a hook. The elastic arm extends perpendicularly to the button pressing plate, and the hook is connected to the end of the elastic arm and extends to the side from the end. The wall of the fixing hole is provided with a locking step. After the elastic arm of the buckle extends into the fixing hole, the hook of the buckle is in close contact with the locking step.

[0009] Furthermore, the side of the hook that contacts the locking step is the hook mating surface, and the side of the locking step that contacts the hook mating surface is the locking mating surface. Both the hook mating surface and the locking mating surface are inclined surfaces.

[0010] Furthermore, the button pressing plate has a long plate-shaped structure, and the button pressing plate is provided with the buckle at the bottom of both ends near its length direction. The middle frame is provided with a through groove that can accommodate the button pressing plate. Support parts are provided on two opposite sides of the through groove extending towards the center of the through groove. The fixing hole is provided on the support part corresponding to the position of the buckle.

[0011] Furthermore, the through groove has easy-lock holes on both sides of the support portion, and the easy-lock holes correspond to the ends of the button pressing plate.

[0012] Furthermore, the front of the middle frame is provided with a first avoidance window for avoiding the card reader cover and a second avoidance window for avoiding the lens cover.

[0013] Furthermore, the main body of the device also includes a speaker and an indicator light guide column. The inner side of the middle frame is provided with a first glue groove, and the speaker and the indicator light guide column are filled and sealed in the first glue groove.

[0014] Furthermore, the main body of the device also includes a microphone assembly, and the inner side of the back cover is provided with a second adhesive groove, in which the microphone assembly is filled with adhesive and sealed.

[0015] Furthermore, the outer shell includes a front shell and a rear shell connected to the front shell, the front shell is provided with a clearance opening, and the bottom of the rear shell is provided with a connector.

[0016] The beneficial effects of this utility model compared with the prior art are as follows: An access control machine includes a shell and a main body. The shell has a receiving cavity, and the main body is disposed in the receiving cavity. The main body includes a middle frame, a rear cover, a lens transparent cover, a button assembly, and a card reader cover. The middle frame and the rear cover are sealed by a first waterproof ring, the lens transparent cover and the middle frame are sealed by a second waterproof ring, and the card reader cover and the middle frame are sealed by a third waterproof ring. The button assembly includes a button body and a button pressing plate. The button body and the middle frame are sealed by a waterproof rib. The button pressing plate is located on the surface of the waterproof rib and is snap-fitted to the middle frame. The middle frame, rear cover, lens cover, and card reader cover of this invention are respectively sealed with a first waterproof ring, a second waterproof ring, and a third waterproof ring, forming a comprehensive and reliable waterproof system. It can withstand extreme environments such as outdoor storms without the need for an additional rain cover, preventing rainwater from seeping in and causing internal component failure, and significantly improving the reliability and service life of the device in outdoor scenarios. At the same time, the button pressing plate of the button assembly is connected to the middle frame by a snap-fit, which can quickly disassemble and replace the buttons. It can flexibly adapt to the different button requirements of different buildings or residential units, and can be operated without tools, greatly improving the flexibility of use and the convenience of maintenance of the access control machine.

[0017] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model, it can be implemented according to the contents of the specification. In order to make the above and other objectives, features and advantages of this utility model more obvious and easy to understand, the following are preferred embodiments, which are described in detail below. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 An exploded view of an access control machine provided for a specific embodiment of this utility model.

[0020] Figure 2 A front view of an access control machine provided for a specific embodiment of this utility model.

[0021] Figure 3 A cross-sectional view of an access control machine provided in a specific embodiment of this utility model. Figure 1 .

[0022] Figure 4 for Figure 3 A magnified view of part A.

[0023] Figure 5 for Figure 3 A magnified view of part B.

[0024] Figure 6 for Figure 3 A magnified view of part C.

[0025] Figure 7 for Figure 3 A magnified view of part D.

[0026] Figure 8 A partial schematic diagram of an access control machine provided for a specific embodiment of this utility model. Figure 1 .

[0027] Figure 9 A partial schematic diagram of an access control machine provided for a specific embodiment of this utility model. Figure 2 .

[0028] Figure 10 This is a schematic diagram illustrating the disassembly and assembly of the button press plate provided in a specific embodiment of the present utility model.

[0029] Figure 11 A cross-sectional view of an access control machine provided in a specific embodiment of this utility model. Figure 2 .

[0030] Figure 12 for Figure 11 A magnified view of part A.

[0031] Figure 13 This is a disassembly diagram of the button press plate provided for a specific embodiment of the present utility model.

[0032] Figure 14 Example diagrams showing different numbers of button press plates provided for specific embodiments of this utility model.

[0033] Figure Labels

[0034] 1. Outer shell; 11. Front shell; 111. Clearance opening; 12. Rear shell; 2. Body; 21. Mid-frame; 211. First adhesive groove; 212. Through groove; 2121. Locking step; 21211. Locking mating surface; 213. Easy-close hole; 22. Rear cover; 221. Second adhesive groove; 23. Lens transparent cover; 24. Button assembly; 241. Button body; 242. Button pressing plate; 2421. Clip; 24211. Elastic locking arm; 24212. Hook; 242121. Hook mating surface; 25. Card reader cover; 26. Speaker; 27. Indicator light guide column; 28. Microphone assembly; 3. First waterproof ring; 4. Second waterproof ring; 5. Third waterproof ring; 6. Waterproof rib. Detailed Implementation

[0035] The technical solution of this utility model will be clearly and completely described below with reference to specific embodiments. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0036] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0038] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0039] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0040] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0041] like Figures 1 to 14 As shown, this utility model embodiment provides an access control machine, including a housing 1 and a main body 2. The housing 1 has a receiving cavity, and the main body 2 is disposed in the receiving cavity. The main body 2 includes a middle frame 21, a rear cover 22, a lens transparent cover 23, a button assembly 24, and a card reader cover 25. The middle frame 21 and the rear cover 22 are sealed by a first waterproof ring 3, the lens transparent cover 23 and the middle frame 21 are sealed by a second waterproof ring 4, and the card reader cover 25 and the middle frame 21 are sealed by a third waterproof ring 5. The button assembly 24 includes a button body 241 and a button pressing plate 242. The button body 241 and the middle frame 21 are sealed by a waterproof rib 6. The button pressing plate 242 is located on the surface of the waterproof rib 6 and is snapped into the middle frame 21.

[0042] The middle frame 21 is sealed to the rear cover 22, the lens cover 23, and the card reader cover 25 by a first waterproof ring 3, a second waterproof ring 4, and a third waterproof ring 5, respectively, forming a comprehensive and reliable waterproof system. It can withstand extreme environments such as outdoor storms without the need for an additional rain cover, preventing rainwater from seeping in and causing internal components to fail, and significantly improving the reliability and service life of the device in outdoor scenarios. At the same time, the button pressing plate 242 of the button assembly 24 is connected to the middle frame 21 by a snap-fit ​​connection, which can quickly remove and replace the buttons. It can flexibly adapt to the different button requirements of different buildings or home units, and can be operated without tools, greatly improving the flexibility of use and the convenience of maintenance of the access control machine.

[0043] like Figure 14As shown, Figure 14 The illustration shows example diagrams of access control machines with different numbers of button press plates 242. The number and size of the button press plates 242 can be adjusted as needed to meet usage requirements.

[0044] The outer shell 1 is a hollow structure with a cavity. The shape of the cavity is adapted to the shape of the fuselage body 2. The fuselage body 2 is fully embedded in the cavity. The outer shell 1 can provide physical protection for the fuselage body 2, preventing the fuselage body 2 from being directly damaged by external collisions and friction.

[0045] The first waterproof ring 3 is made of aging-resistant rubber and is pre-installed in an annular groove on the side of the middle frame 21 facing the rear cover 22. When the rear cover 22 is fixed to the middle frame 21 with screws, the edge of the rear cover 22 will press the first waterproof ring 3, causing the first waterproof ring 3 to elastically deform and tightly fit into the gap between the middle frame 21 and the rear cover 22, effectively preventing rainwater and moisture from seeping into the body through the connection gap. The lens cover 23 is made of highly transparent acrylic material and is used to protect the lens assembly inside the body 2. The lens cover 23 and the middle frame 21 are sealed by a second waterproof ring 4. The second waterproof ring 4 is also made of rubber and its shape matches the edge contour of the lens cover 23. The second waterproof ring 4 is pre-installed in an annular groove on the side of the middle frame 21 facing the rear cover 22. The lens cover 23 is fixed to the middle frame 21 by the lens transparent cover 23 through the buckle 2421 structure. The second waterproof ring 4 is pressed between the two to prevent rainwater from seeping in from the joint between the lens transparent cover 23 and the middle frame 21 and damaging the lens assembly. The card reader cover 25 is used to cover and protect the card reader in the body 2. The card reader cover 25 and the middle frame 21 are sealed by the third waterproof ring 5. The installation method of the third waterproof ring 5 is similar to that of the first waterproof ring 3. It is embedded in the mounting groove of the middle frame 21 corresponding to the card reader cover 25. When the card reader cover 25 is fastened to the middle frame 21, the third waterproof ring 5 tightly fills the gap between the two to prevent external impurities and moisture from affecting the recognition performance of the card reader.

[0046] The button body 241 has a conventional structure and can realize the press trigger function. The button body 241 and the middle frame 21 are sealed by a waterproof rib 6. The waterproof rib 6 is an annular protrusion structure integrally formed on the edge of the button body 241. When the button body 241 is installed in the button mounting hole of the middle frame 21, the waterproof rib 6 will fit tightly with the inner wall of the button mounting hole of the middle frame 21, forming a sealing barrier to prevent rainwater from seeping in from the button gap. The button pressing plate 242 is located on the surface of the waterproof rib 6 and is made of hard plastic. It can protect the button body 241 and realize button operation by pressing.

[0047] like Figure 10As shown, the button pressing plate 242 is provided with a buckle 2421, and the middle frame 21 is provided with a fixing hole, and the buckle 2421 is engaged in the fixing hole. The clip 2421 is a raised structure integrally injection molded from the button press plate 242. The fixing hole is a through hole that penetrates the thickness direction of the middle frame 21. The shape of the fixing hole is adapted to the shape of the clip 2421. When installing the button press plate 242, simply align the clip 2421 at the bottom of the button press plate 242 with the fixing hole on the middle frame 21 and apply a certain pressure to insert the clip 2421 into the fixing hole, thereby achieving the snap-fit ​​fixation between the button press plate 242 and the middle frame 21. When it is necessary to disassemble the button press plate 242, simply apply a slight force to the outside of the clip 2421 to disengage the clip 2421 from the fixing hole, and the button press plate 242 can be removed from the middle frame 21. In this way, the button press plate 242 and the middle frame 21 can be quickly installed and disassembled without the need for screwdrivers or other tools, making the operation convenient and greatly improving the efficiency of button replacement.

[0048] In one embodiment, such as Figure 12 As shown, the buckle 2421 includes an elastic locking arm 24211 and a locking hook 24212. The elastic locking arm 24211 extends perpendicularly to the button pressing plate 242. The locking hook 24212 is connected to the end of the elastic locking arm 24211 and extends to the side from the end. The wall of the fixing hole is provided with a locking step 2121. After the elastic locking arm 24211 of the buckle 2421 extends into the fixing hole, the locking hook 24212 of the buckle 2421 is in close contact with the locking step 2121.

[0049] The elastic arm 24211 is made of a plastic material with good elasticity. One end of it is vertically connected to the bottom of the button pressing plate 242, and the other end extends away from the button pressing plate 242. The number of elastic arms 24211 is the same as the number of buckles 2421, and each elastic arm 24211 is connected to a hook 24212 at its end. The hook 24212 extends from the end of the elastic arm 24211 to the side to form an L-shaped structure. When installing the button press plate 242, align the elastic clip arm 24211 with the fixing hole and insert it. During the insertion process, the elastic clip arm 24211 is squeezed by the inner wall of the fixing hole and undergoes elastic deformation. When the elastic clip arm 24211 is fully inserted into the fixing hole, the elastic clip arm 24211 returns to its deformation, and the hook 24212 is in close contact with the locking step 2121. The lower surface of the hook 24212 is attached to the upper surface of the locking step 2121, thereby realizing the locking and fixing of the buckle 2421 with the fixing hole and preventing the button press plate 242 from detaching from the middle frame 21 during use.

[0050] The combination of the elastic locking arm 24211 and the latch 24212 enables the latch 2421 to form a stable locking connection with the fixing hole, preventing the button press plate 242 from detaching from the middle frame 21 due to vibration, accidental touch or other factors during daily use, thus improving the structural stability of the button assembly 24. At the same time, the elastic deformation characteristics of the elastic locking arm 24211 ensure the convenience of inserting and removing the latch 2421 from the fixing hole, without affecting the efficiency of disassembling and replacing the button press plate 242.

[0051] In one embodiment, such as Figure 12 As shown, the side of the hook 24212 that contacts the locking step 2121 is the hook mating surface 242121, and the side of the locking step 2121 that contacts the hook mating surface 242121 is the locking mating surface 21211. Both the hook mating surface 242121 and the locking mating surface 21211 are inclined surfaces, meaning that both mating surfaces are inclined at a certain angle to the horizontal plane, with the inclination angle being 15°-30°. Thus, when the button press plate 242 is disassembled, an upward force is applied to one end of the button press plate 242. The inclined surface between the hook mating surface 242121 and the locking mating surface 21211 can convert the upward force into a lateral force that deforms the elastic arm 24211, making it easier for the elastic arm 24211 to deform outwards. This allows the hook 24212 to disengage from the locking step 2121, facilitating the disassembly of the button press plate 242.

[0052] like Figure 10 In the illustrated embodiment, the button pressing plate 242 has a long plate-like structure. Each end of the button pressing plate 242 has a latch 2421 at its bottom. The middle frame 21 has a through-slot 212 that can accommodate the button pressing plate 242. Support portions extend from two opposite sides of the through-slot 212 towards its center, and fixing holes are provided on the support portions corresponding to the positions of the latches 24212. Thus, the design of the latches 2421 at both ends ensures the stability and balance of the engagement.

[0053] In one embodiment, such as Figure 13 As shown, the through groove 212 has easy-open holes 213 on both sides of the support portion, and the easy-open holes 213 correspond to the ends of the button press plate 242. Thus, when replacing the button press plate 242, it can be easily removed and replaced by prying it up with your fingers into the easy-open holes 213 and applying an upward force to the button press plate 242.

[0054] In one embodiment, the front of the middle frame 21 is provided with a first clearance window and a second clearance window. The first clearance window is used to avoid the card reader cover 25. The shape of the first clearance window is adapted to the shape of the card reader cover 25. For example, when the card reader cover 25 is a rectangular structure, the first clearance window is also a rectangular hole. The size of the first clearance window is slightly larger than the size of the card reader cover 25, so that the card reader cover 25 can be completely embedded in the first clearance window. At the same time, it reserves installation space for the third waterproof ring 5 between the card reader cover 25 and the middle frame 21. The second clearance window is used to avoid the lens cover 23. The shape of the second clearance window is adapted to the shape of the lens cover 23. For example, when the lens cover 23 is a circular structure, the second clearance window is also a circular hole. The size of the second clearance window matches the size of the lens cover 23, so that the lens cover 23 can be tightly embedded in the second clearance window, ensuring the sealing performance between the lens cover 23 and the middle frame 21.

[0055] In one embodiment, such as Figure 8 As shown, the main body 2 also includes a speaker 26 and an indicator light guide column 27. A first adhesive groove 211 is provided on the inner side of the middle frame 21, and the speaker 26 and indicator light guide column 27 are sealed in the first adhesive groove 211 with adhesive. Thus, the combination of the first adhesive groove 211 and the waterproof adhesive further enhances the access control machine's waterproofness.

[0056] In one embodiment, such as Figure 9 As shown, the main body 2 also includes a microphone module 28, and a second adhesive groove 221 is provided on the inner side of the back cover 22. The microphone module 28 is sealed in the second adhesive groove 221 with adhesive. In this way, the combination of the second adhesive groove 221 and the waterproof adhesive can further improve the waterproofness of the access control machine.

[0057] In one embodiment, the outer casing 1 includes a front casing 11 and a rear casing 12 connected to the front casing 11 by screws or clips 2421. The front casing 11 has a clearance opening 111, the position of which corresponds to the positions of the button assembly 24, the card reader cover 25, and the lens cover 23 on the main body 2. The shape and size of the clearance opening 111 are adapted to the shape and size of the button assembly 24, the card reader cover 25, and the lens cover 23, respectively. The bottom of the rear casing 12 has a connector, which is an integrally formed mounting plate or an independent mounting bracket. The connector has mounting holes for screws or expansion bolts to be inserted, so as to fix the access control machine to the wall or other mounting carrier through the connector, ensuring the stability of the access control machine installation.

[0058] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. An access control machine, characterized in that, The device includes an outer shell and a main body. The outer shell has a receiving cavity, and the main body is disposed within the receiving cavity. The main body includes a middle frame, a rear cover, a lens cover, a button assembly, and a card reader cover. The middle frame and the rear cover are sealed by a first waterproof ring, the lens cover and the middle frame are sealed by a second waterproof ring, and the card reader cover and the middle frame are sealed by a third waterproof ring. The button assembly includes a button body and a button pressing plate. The button body and the middle frame are sealed by a waterproof rib, and the button pressing plate is located on the surface of the waterproof rib and is snap-fitted to the middle frame.

2. The access control machine according to claim 1, characterized in that, The button pressing plate is provided with a buckle, and the middle frame is provided with a fixing hole, and the buckle is engaged in the fixing hole.

3. The access control machine according to claim 2, characterized in that, The buckle includes an elastic arm and a hook. The elastic arm extends perpendicularly to the button pressing plate, and the hook is connected to the end of the elastic arm and extends to the side from the end. The wall of the fixing hole is provided with a locking step. After the elastic arm of the buckle extends into the fixing hole, the hook of the buckle is in close contact with the locking step.

4. The access control machine according to claim 3, characterized in that, The side of the hook that contacts the locking step is the hook mating surface, and the side of the locking step that contacts the hook mating surface is the locking mating surface. Both the hook mating surface and the locking mating surface are inclined surfaces.

5. An access control machine according to claim 3, characterized in that, The button pressing plate has a long plate-shaped structure. The button pressing plate has buckles at the bottom of both ends near its length. The middle frame has a through groove that can accommodate the button pressing plate. Support parts are provided on two opposite sides of the through groove extending towards the center of the through groove. The fixing holes are opened on the support parts corresponding to the positions of the buckles.

6. An access control machine according to claim 5, characterized in that, The through groove has easy-lock holes on both sides of the support portion, and the easy-lock holes correspond to the ends of the button pressing plate.

7. An access control machine according to claim 1, characterized in that, The front of the middle frame is provided with a first avoidance window for avoiding the card reader cover and a second avoidance window for avoiding the lens cover.

8. An access control machine according to claim 1, characterized in that, The main body of the device also includes a speaker and an indicator light guide column. The inner side of the middle frame is provided with a first glue groove, and the speaker and the indicator light guide column are filled with glue and sealed in the first glue groove.

9. An access control machine according to claim 1, characterized in that, The main body of the device also includes a microphone assembly, and the inner side of the back cover is provided with a second glue groove, in which the microphone assembly is filled with glue and sealed.

10. An access control machine according to claim 1, characterized in that, The outer shell includes a front shell and a rear shell connected to the front shell. The front shell is provided with a clearance opening, and the bottom of the rear shell is provided with a connector.

Images