Access control device

Abstract

The utility model provides an access control device, which is used for being fixed in a mounting groove of a wall body, the access control device comprises a shell used for being fixed in the mounting groove, the shell is provided with a mounting opening and a mounting cavity which are communicated with each other, and the end face where the mounting opening is located is used for being flush with the outer surface of the wall body; the access control body is detachably arranged in the mounting cavity, the operation surface of the access control body is flush with the end surface where the mounting opening is located, a connecting structure is arranged between the access control body and the shell, and the connecting structure has a connecting state and an unlocking state which are oppositely arranged; and the driving assembly is arranged on the shell and is in driving connection with the connecting structure so as to drive the connecting structure to be switched from the connecting state to the unlocking state. According to the technical scheme provided by the invention, the problem that the access control body in the prior art is extremely easy to damage during disassembly can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of access control devices, in particular to an access control device. Background Art

[0002] The access control device is a common smart building product, usually installed on the wall at the door or the wall of the passage. The access control device includes a sunken shell and an access control body. The sunken shell is fixed on the wall. To facilitate the removal and installation of the access control body, the access control body is usually set protruding from the wall after being fixed. However, the door or passage is the facade of the building. In this way, the access control body is exposed to the outside world and is easily damaged after being fixed, which will affect the cleanliness of the building.

[0003] Therefore, in the prior art, some access control devices are completely embedded in the wall. However, when dismantling the access control body, the staff can only use prying tools to dismantle the access control body. Such forceful dismantling of the access control body is very likely to cause damage to the access control body. Utility Model Content

[0004] The utility model provides a door control device to solve the problem in the prior art that the door control body is easily damaged when being disassembled.

[0005] The utility model provides a door access control device, which is used to be fixed in an installation groove of a wall, and the door access control device comprises: a shell, which is used to be fixed in the installation groove, the shell having an installation port and an installation cavity which are interconnected, and the end surface where the installation port is located is used to be arranged flush with the outer surface of the wall; a door access control body, which is detachably arranged in the installation cavity, the operating surface of the door access control body is arranged flush with the end surface where the installation port is located, and a connection structure is provided between the door access control body and the shell, and the connection structure has a connection state and an unlocking state which are relatively arranged; a driving component, which is arranged on the shell and is drivingly connected to the connection structure to drive the connection structure to switch from the connection state to the unlocking state.

[0006] Furthermore, the access control device also includes: a push rod, which is arranged between the shell and the access control body, and the push rod is arranged on the rear side of the access control body. The driving component is connected to the push rod, and the driving component drives the access control body to move away from the shell through the push rod.

[0007] Furthermore, the connection structure includes a buckle structure and a reset member, the buckle structure has a connected state and an unlocked state, and the reset member is drivingly connected to the buckle structure to drive the buckle structure to switch from the unlocked state to the connected state.

[0008] Furthermore, a fixing groove is provided on the shell, the fixing groove is connected with the installation cavity, a locking block and a reset piece are provided in the fixing groove, and the reset piece is provided between the locking block and the fixing groove; a connecting protrusion is provided on the access control body, the locking block cooperates with the connecting protrusion to form a snap-fit ​​structure, when the snap-fit ​​structure is in a connected state, the locking block is snap-fitted with the connecting protrusion, and when the snap-fit ​​structure is in an unlocked state, the locking block is arranged away from the connecting protrusion.

[0009] Furthermore, a first abutting surface is provided on a side of the locking block close to the connecting protrusion, and a second abutting surface is provided on a side of the connecting protrusion close to the locking block. The first abutting surface is inclined and gradually inclines toward the connecting protrusion along the direction away from the mounting opening, and / or the second abutting surface is inclined and gradually inclines toward the locking block along the direction away from the mounting opening, and the first abutting surface can contact the second abutting surface.

[0010] Furthermore, a fixing portion is provided on the top of the shell, the bottom of which is sunk into the installation cavity, the fixing portion has a fixing groove and a connecting port, the fixing groove is connected to the installation cavity through the connecting port, and part of the locking block extends into the installation cavity through the connecting port.

[0011] Furthermore, a connection groove is provided on the top of the access control body, and a connection protrusion is provided in the connection groove. When the buckle structure is in a connected state, the connection groove cover is provided on the outer side of the bottom of the fixing part.

[0012] Furthermore, a through hole is provided at the top of the shell, and the driving assembly includes: a driving plate, which is movably arranged at the top of the shell, the driving plate is arranged corresponding to the through hole, the driving plate has a third abutting surface, the first abutting surface is inclined, and the first abutting surface is gradually inclined toward the direction close to the driving plate along the direction away from the mounting port, and / or the third abutting surface is inclined, and the third abutting surface is gradually inclined toward the direction away from the locking block along the direction away from the mounting port, the third abutting surface can abut against the first abutting surface, and the driving plate drives the buckle structure to switch from a connected state to an unlocked state.

[0013] Furthermore, a guide structure is provided between the driving plate and the housing.

[0014] Furthermore, the push rod is rotatably arranged on the shell, the push rod has a first end and a second end arranged opposite to each other, the driving assembly is drivingly connected to the first end of the push rod, and the second end of the push rod is located between the installation cavity and the access control body.

[0015] Furthermore, a rotating structure is provided between the installation cavity and the access control body, the rotating structure is arranged at the bottom end of the installation cavity, and the top rod is arranged at the top end of the installation cavity.

[0016] Furthermore, a sensing element and an alarm are provided between the shell and the access control body. The sensing element can sense the position of the access control body relative to the shell, and the alarm can operate according to the signal of the sensing element.

[0017] By applying the technical solution of the utility model, the shell is fixed in the mounting groove of the wall, and the end face where the mounting opening of the shell is located is located in the same plane as the outer surface of the wall. The access control body is detachably arranged in the mounting cavity of the shell, and the operating surface of the access control body is located in the same plane as the end face where the mounting opening is located. With the above structure, the access control device is completely embedded in the wall, which can avoid damage to the access control device and ensure the cleanliness of the building. Among them, there is a connecting structure between the access control body and the shell, and the driving component can switch the connecting structure from a connected state to an unlocked state. In this way, when the connecting structure is switched to the unlocked state, the access control body can be disassembled, which is convenient for disassembly of the access control, avoiding the use of tools to forcibly dismantle the access control body, and thus avoiding damage to the access control body during the process of disassembling and assembling the access control body, which is convenient for the subsequent use of the access control body, thereby increasing the service life of the access control body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0019] Figure 1 A schematic diagram showing the structure of the door access device provided by the utility model in cooperation with a wall;

[0020] Figure 2 An exploded view showing the matching of the access control device provided by the utility model with the wall;

[0021] Figure 3 The structure diagram of the access control device provided by the utility model is shown;

[0022] Figure 4 An exploded view of the access control device provided by the utility model is shown;

[0023] Figure 5 Shows Figure 4 A partial enlarged view of the middle A;

[0024] Figure 6 Shows Figure 4 A partial enlarged view of point B in the middle;

[0025] Figure 7 A schematic diagram showing the structure of the housing and the ejector rod provided by the utility model in cooperation with each other;

[0026] Figure 8 Shows Figure 7 A partial enlarged view of point C in the middle;

[0027] Fig. 9 A schematic diagram showing the structure of the housing and the connecting structure provided by the utility model in cooperation with each other;

[0028] Fig.10 Shows Fig. 9 A partial enlarged view of point D in the middle;

[0029] Fig.11 A cross-sectional view showing the door access control device provided by the utility model in cooperation with a wall;

[0030] Fig.12 Shows Fig.11 A partial enlarged view of point E in the middle.

[0031] The above drawings include the following reference numerals:

[0032] 10. Shell;

[0033] 11. Installation port;

[0034] 12. Installation cavity; 121. Rotation protrusion;

[0035] 13. fixing portion; 131. fixing groove; 132. connecting port;

[0036] 14. Through hole;

[0037] 15. first guide groove; 16. second guide groove;

[0038] 20. Access control system;

[0039] 21. Operation surface; 22. Connection slot;

[0040] 31. Locking block; 311. First abutting surface;

[0041] 32. Connecting protrusion; 321. Second abutting surface;

[0042] 33. Reset parts;

[0043] 40. Drive assembly;

[0044] 41. Driver board;

[0045] 411, third abutting surface; 412, guide slider; 413, driving protrusion;

[0046] 50. Ejector rod;

[0047] 61. Magnet;

[0048] 70. Cover body;

[0049] 100. Wall; 110. Installation groove. DETAILED DESCRIPTION

[0050] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0051] like Figures 1 to 5 As shown, an embodiment of the utility model provides an access control device for fixing in a mounting groove 110 of a wall 100. The access control device comprises a housing 10, a access control body 20 and a drive assembly 40. The housing 10 is used to be fixed in the mounting groove 110, and the housing 10 has a mounting port 11 and a mounting cavity 12 that are interconnected, and the end surface where the mounting port 11 is located is used to be flush with the outer surface of the wall 100. The access control body 20 is detachably arranged in the mounting cavity 12, and the operating surface 21 of the access control body 20 is flush with the end surface where the mounting port 11 is located, and there is a connection structure between the access control body 20 and the housing 10, and the connection structure has a connection state and an unlocked state that are relatively set. The drive assembly 40 is arranged on the housing 10, and is driven and connected to the connection structure to drive the connection structure to switch from the connection state to the unlocked state. Among them, the housing 10 can be fixed to the wall 100 by cement or screws.

[0052] By applying the technical solution of the present application, the housing 10 is fixed in the mounting groove 110 of the wall 100, and the end face where the mounting opening 11 of the housing 10 is located is located in the same plane as the outer surface of the wall 100. The access control body 20 is detachably arranged in the mounting cavity 12 of the housing 10, and the operating surface 21 of the access control body 20 is located in the same plane as the end face where the mounting opening 11 is located. With the above structure, the access control device is completely embedded in the wall 100, which can avoid damage to the access control device and ensure the cleanliness of the building. Among them, there is a connection structure between the access control body 20 and the housing 10, and the driving component 40 can switch the connection structure from the connection state to the unlocked state. In this way, when the connection structure is switched to the unlocked state, the access control body 20 can be disassembled, which is convenient for disassembly of the access control, avoiding the use of tools to forcefully dismantle the access control body 20, and thus avoiding damage to the access control body 20 during the process of disassembling and assembling the access control body 20, which is convenient for the subsequent use of the access control body 20, thereby improving the service life of the access control body 20.

[0053] like Figure 7As shown, the access control device further includes a push rod 50. The push rod 50 is disposed between the housing 10 and the access control body 20, and the push rod 50 is disposed at the rear side of the access control body 20. The driving assembly 40 is drivingly connected to the push rod 50, and the driving assembly 40 drives the access control body 20 to move away from the housing 10 through the push rod 50. In this arrangement, the push rod 50 can directly push the access control body 20 out of the installation cavity 12, further facilitating the staff to take the access control body 20 out of the installation cavity 12, and further reducing the difficulty of the staff to disassemble the access control body 20.

[0054] like Figures 5 to 10 As shown, the connection structure includes a buckle structure and a reset member 33. The buckle structure has a connection state and an unlocked state. The reset member 33 is connected to the buckle structure to drive the buckle structure to switch from the unlocked state to the connection state. This arrangement facilitates the connection between the housing 10 and the access control body 20. At the same time, the reset member 33 can automatically connect the housing 10 and the access control body 20 by driving the buckle structure, which is convenient for the staff to install the access control body 20.

[0055] like Figure 6 and Figure 8 As shown, a fixing groove 131 is provided on the housing 10, and the fixing groove 131 is communicated with the installation cavity 12. A locking block 31 and a reset member 33 are provided in the fixing groove 131, and the reset member 33 is provided between the locking block 31 and the fixing groove 131. A connecting protrusion 32 is provided on the access control body 20, and the locking block 31 cooperates with the connecting protrusion 32 to form a buckle structure. When the buckle structure is in a connected state, the locking block 31 and the connecting protrusion 32 are engaged and matched. When the buckle structure is in an unlocked state, the locking block 31 is arranged away from the connecting protrusion 32, and the driving assembly 40 can drive the locking block 31 to move in a direction away from the connecting protrusion 32. Such an arrangement can ensure the stability of the connection between the connecting protrusion 32 and the locking block 31. When installing the access control body 20, the staff can directly push the access control body 20, which reduces the difficulty of installing the access control body 20 for the staff.

[0056] Specifically, in the present application, the reset member 33 is a spring.

[0057] A first abutting surface 311 is disposed on a side of the locking block 31 close to the connecting protrusion 32 , and a second abutting surface 321 is disposed on a side of the connecting protrusion 32 close to the locking block 31 .

[0058] Optionally, the first abutting surface 311 is inclined, and the first abutting surface 311 gradually inclines from the direction away from the installation opening 11 to the direction close to the connecting protrusion 32. Alternatively, the second abutting surface 321 is inclined, and the second abutting surface 321 gradually inclines from the direction away from the installation opening 11 to the direction away from the locking block 31.

[0059] In the present application, both the first abutting surface 311 and the second abutting surface 321 are arranged at an inclination.

[0060] The first abutting surface 311 can contact the second abutting surface 321 .

[0061] With the above structure, during the installation process, the second abutting surface 321 squeezes the first abutting surface 311 to move, and when the second abutting surface 321 passes over the first abutting surface 311, the reset member 33 drives the locking block 31 to move toward the connecting protrusion 32, so that the connecting protrusion 32 is engaged with the locking block 31. With this arrangement, the locking block 31 and the door control body 20 have simple structures, are easy to process, and are easy to operate.

[0062] like Figure 3 and Fig.10 As shown, in the present application, there are two connection structures between the access control body 20 and the housing 10, and the two connection structures are respectively located on both sides of the access control body 20. Such a configuration can further ensure the stability of the connection between the access control body 20 and the housing 10, and avoid looseness between the access control body 20 and the housing 10. When the connection structure is switched from the connected state to the unlocked state, the two connection structures move away from each other, and when the connection structure is switched from the unlocked state to the connected state, the two connection structures move towards each other.

[0063] like Figures 7 to 9 As shown, a fixing portion 13 is provided on the top of the housing 10, and the bottom of the fixing portion 13 sinks into the installation cavity 12. The fixing portion 13 has a fixing groove 131 and a connection port 132. The fixing groove 131 is connected to the installation cavity 12 through the connection port 132, and part of the locking block 31 extends into the installation cavity 12 through the connection port 132. Such a configuration is convenient for processing the housing 10, and is convenient for placing the locking block 31 and the reset member 33, avoiding interference between the locking block and the reset member 33 and the wall 100, and ensuring the normal operation of the locking block 31 and the reset member 33.

[0064] like Figure 3 and Figure 6 As shown, a connection groove 22 is provided at the top of the access control body 20, and a connection protrusion 32 is provided at the connection groove 22. When the buckle structure is in the connection state, the connection groove 22 is covered on the outside of the bottom of the fixing portion 13. Such a configuration facilitates the positioning of the access control body 20, and can further ensure the stability of the matching between the connection protrusion 32 and the locking block 31. In addition, with the above structure, the top of the access control body 20 can abut against the top of the installation cavity 12, avoiding the interval between the access control body 20 and the housing 10, thereby reducing the volume of the access control device.

[0065] The connection groove 22 has an opening. When the access control body 20 is installed, the connection groove 22 slides through the opening to the bottom of the fixing portion 13 .

[0066] like Fig.10 and Fig.11 As shown, a through hole 14 is provided on the top of the housing 10, and the driving assembly 40 includes a driving plate 41, which is movably provided on the top of the housing 10, and the driving plate 41 is provided corresponding to the through hole 14. The driving plate 41 has a third abutting surface 411.

[0067] Optionally, the first abutting surface 311 is tilted, and the first abutting surface 311 gradually tilts from the direction away from the installation opening 11 to the direction close to the driving plate 41. Alternatively, the third abutting surface 411 is tilted, and the third abutting surface 411 gradually tilts from the direction away from the installation opening 11 to the direction away from the locking block 31.

[0068] In the present application, the first abutting surface 311 and the third abutting surface 411 are both arranged to be inclined.

[0069] The third abutting surface 411 can abut against the first abutting surface 311 , and the driving plate 41 drives the buckle structure to switch from the connected state to the unlocked state.

[0070] With the above structure, when the driving plate 41 moves away from the installation opening 11, the buckle structure can be switched from the connected state to the unlocked state. When the door control body 20 is removed, the reset member 33 drives the driving plate 41 to move toward the installation opening 11 through the locking block 31, and the locking block 31 is reset at the same time. With such a configuration, the locking block 31 and the driving plate 41 have a simple structure, are easy to process, and are easy to operate.

[0071] In the present application, the driving plate 41 is located between the two connection structures. The driving plate 41 has two third abutting surfaces 411 . The two third abutting surfaces 411 are arranged in one-to-one correspondence with the two connection structures.

[0072] Specifically, when disassembling the access control body 20 , the staff can pass the driving rod through the through hole 14 and make the driving rod abut against the driving plate 41 to drive the driving plate 41 to move, which is easy to operate.

[0073] In the prior art, some access control bodies 20 and housings 10 are connected by bolts. However, in such a configuration, the access control body 20 and housing 10 need to be repeatedly disassembled and installed with bolts during disassembly and assembly, which is cumbersome. In addition, bolts are a common connection method, and the access control body 20 is more likely to be lost.

[0074] However, in the present application, when installing the access control body 20, the access control body 20 can be directly pushed into the installation cavity 12, and the connection structure can automatically connect the access control body 20 and the housing 10. When disassembling the access control body 20, the driving rod can be directly inserted into the through hole 14 to drive the driving plate 41 to move. In addition, the risk of losing the access control body 20 can be reduced.

[0075] There is a guide structure between the driving plate 41 and the housing 10. This arrangement can ensure the stability of the driving plate 41 during movement, prevent the driving plate 41 from being deflected during movement, and ensure that the driving plate 41 switches the driving buckle structure from the connected state to the unlocked state, avoid failure of unlocking the connection structure, and thus ensure the normal disassembly of the access control body 20.

[0076] like Figure 5 As shown, two guide sliders 412 are provided at the bottom of the driving plate 41, and the two guide sliders 412 are respectively provided on both sides of the driving plate 41, and the guide sliders 412 extend along the moving direction of the driving plate 41. Two first guide grooves 15 are provided at the top of the housing 10, and the two first guide grooves 15 are provided in a one-to-one correspondence with the two guide sliders 412, and the guide sliders 412 are slidably provided in the corresponding first guide grooves 15, and the guide sliders 412 cooperate with the first guide grooves 15 to form a guide structure.

[0077] like Figure 7 , Figures 10 to 12 As shown, the push rod 50 is rotatably arranged on the housing 10, and the push rod 50 has a first end and a second end arranged opposite to each other, the driving assembly 40 is drivingly connected to the first end of the push rod 50, and the second end of the push rod 50 is located between the installation cavity 12 and the access control body 20. Such an arrangement facilitates the driving of the push rod 50 to rotate, has a simple structure, and is easy to operate.

[0078] Specifically, the first end of the push rod 50 has a bending section, and the bending section is inclined in the direction close to the driving plate 41. The top of the housing 10 has a second guide groove 16, and the second guide groove 16 is arranged in parallel with the first guide groove 15. The end of the second guide groove 16 has an inclined section, and in a natural state, the bending section is located in the inclined section. A driving protrusion 413 is provided at one end of the driving plate 41 close to the push rod 50, and the driving protrusion 413 is slidably arranged in the second guide groove 16. When the driving plate 41 moves in the direction close to the push rod 50, the driving protrusion 413 can abut against the bending section and drive the push rod 50 to rotate.

[0079] Such an arrangement can ensure that the driving plate 41 can abut against the push rod 50 , and at the same time can increase the rotation angle of the second end of the push rod 50 , thereby ensuring that the access control body 20 is driven to the outside of the installation cavity 12 .

[0080] like Fig. 9 and Fig.11As shown, there is a rotating structure between the installation cavity 12 and the door control body 20, the rotating structure is arranged at the bottom end of the installation cavity 12, and the top rod 50 is arranged at the top end of the installation cavity 12. In this way, the top rod 50 can drive the door control body 20 to rotate, which can reduce the difficulty of taking the door control body 20 out of the installation cavity 12, and also facilitate the staff to fix the door control body 20 into the installation cavity 12.

[0081] Specifically, two rotating protrusions 121 are provided at the bottom of the installation cavity 12, and two rotating grooves are provided at the bottom of the access control body 20. The two rotating grooves are provided in a one-to-one correspondence with the two rotating protrusions 121, and the rotating protrusions 121 are rotatably provided in the corresponding rotating grooves.

[0082] like Figure 4 and Figure 5 As shown, in the present application, a cover body 70 is provided on the top of the shell 10, and the cover body 70 is provided on the outside of the connecting structure and the driving assembly 40. The cover body 70 can protect the connecting structure and the driving assembly 40 to prevent the connecting structure and the driving assembly 40 from being damaged.

[0083] Specifically, the cover 70 is threadedly connected to the housing 10 .

[0084] like Fig.11 As shown, there are sensing elements and alarms inside the housing 10 and between the access control body 20. The sensing elements can sense the position of the access control body 20 relative to the housing 10, and the alarm can work according to the signal of the sensing elements. In this way, when the access control body 20 is stolen, the alarm can sound an alarm, thereby promptly reminding the staff.

[0085] Specifically, a magnet 61 is fixedly arranged in the installation cavity 12, and the access control body 20 has a Hall sensor, and the Hall sensor and the magnet 61 are electrically matched. When the access control body 20 is removed, the Hall sensor in the access control body 20 has no signal due to separation from the magnet 61, and the alarm of the access control body 20 will send out an alarm signal. The magnet 61 and the Hall sensor cooperate to form a sensing element.

[0086] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0087] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the utility model. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0088] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0089] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0090] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0091] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A door access control device, used to be fixed in a mounting groove (110) of a wall (100), characterized in that: The access control device comprises: A shell (10) is used to be fixed in the installation groove (110), the shell (10) having an installation opening (11) and an installation cavity (12) which are connected to each other, and the end surface where the installation opening (11) is located is used to be flush with the outer surface of the wall (100); A door control body (20) is detachably arranged in the installation cavity (12); an operating surface (21) of the door control body (20) is arranged flush with an end surface where the installation opening (11) is located; a connection structure is provided between the door control body (20) and the housing (10); the connection structure has a connected state and an unlocked state which are arranged relatively; A driving assembly (40) is arranged on the housing (10) and is drivingly connected to the connection structure to drive the connection structure to switch from the connection state to the unlocking state.

2. The access control device according to claim 1, characterized in that: The access control device further comprises: A push rod (50) is arranged between the shell (10) and the access control body (20), and the push rod (50) is arranged on the rear side of the access control body (20). The driving component (40) is drivingly connected to the push rod (50), and the driving component (40) drives the access control body (20) to move in a direction away from the shell (10) through the push rod (50).

3. The access control device according to claim 1, characterized in that: The connection structure comprises a buckle structure and a reset member (33), the buckle structure having the connection state and the unlocking state, and the reset member (33) is drivingly connected to the buckle structure to drive the buckle structure to switch from the unlocking state to the connection state.

4. The access control device according to claim 3, characterized in that: The housing (10) is provided with a fixing groove (131), the fixing groove (131) is communicated with the mounting cavity (12), a locking block (31) and a reset member (33) are provided in the fixing groove (131), and the reset member (33) is provided between the locking block (31) and the fixing groove (131); A connecting protrusion (32) is provided on the access control body (20), and the locking block (31) cooperates with the connecting protrusion (32) to form the buckle structure. When the buckle structure is in the connected state, the locking block (31) and the connecting protrusion (32) are engaged in a buckle manner. When the buckle structure is in the unlocked state, the locking block (31) is arranged away from the connecting protrusion (32).

5. The access control device according to claim 4, characterized in that: A first abutting surface (311) is provided on a side of the locking block (31) close to the connecting protrusion (32), and a second abutting surface (321) is provided on a side of the connecting protrusion (32) close to the locking block (31). The first abutting surface (311) is inclined, and the first abutting surface (311) is gradually inclined toward the connecting protrusion (32) along a direction away from the mounting opening (11), and / or the second abutting surface (321) is inclined, and the second abutting surface (321) is gradually inclined toward the locking block (31) along a direction away from the mounting opening (11), and the first abutting surface (311) can contact the second abutting surface (321).

6. The access control device according to claim 5, characterized in that: A fixing portion (13) is provided on the top of the shell (10), the bottom of the fixing portion (13) is sunken into the installation cavity (12), the fixing portion (13) has the fixing groove (131) and the connecting port (132), the fixing groove (131) is connected to the installation cavity (12) through the connecting port (132), and part of the locking block (31) extends into the installation cavity (12) through the connecting port (132).

7. The access control device according to claim 6, characterized in that: The top of the access control body (20) is provided with a connection groove (22), and the connection groove (22) is provided with the connection protrusion (32). When the buckle structure is in the connection state, the connection groove (22) is covered on the outer side of the bottom of the fixing part (13).

8. The access control device according to claim 6, characterized in that: The top of the housing (10) is provided with a through hole (14), and the driving assembly (40) comprises: A drive plate (41) is movably arranged on the top of the shell (10), the drive plate (41) is arranged corresponding to the through hole (14), the drive plate (41) has a third abutting surface (411), the first abutting surface (311) is inclined, the first abutting surface (311) is gradually inclined from the direction away from the mounting opening (11) to the direction close to the drive plate (41), and / or the third abutting surface (411) is inclined, the third abutting surface (411) is gradually inclined from the direction away from the mounting opening (11) to the direction away from the locking block (31), the third abutting surface (411) can abut against the first abutting surface (311), and the drive plate (41) drives the buckle structure to switch from the connected state to the unlocked state.

9. The access control device according to claim 8, characterized in that: A guide structure is provided between the driving plate (41) and the housing (10).

10. The access control device according to claim 2, characterized in that: The push rod (50) is rotatably arranged on the shell (10), and the push rod (50) has a first end and a second end that are arranged opposite to each other. The driving assembly (40) is drivingly connected to the first end of the push rod (50), and the second end of the push rod (50) is located between the installation cavity (12) and the access control body (20).

11. The access control device according to claim 2, characterized in that: A rotating structure is provided between the installation cavity (12) and the access control body (20), the rotating structure being arranged at the bottom end of the installation cavity (12), and the top rod (50) being arranged at the top end of the installation cavity (12).

12. The access control device according to claim 1, characterized in that: A sensing element and an alarm are provided inside the shell (10) and between the access control body (20); the sensing element can sense the position of the access control body (20) relative to the shell (10); and the alarm can operate according to a signal from the sensing element.

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