An intelligent door lock

Abstract

The utility model is specifically related to an intelligent door lock, including front frame subassembly, rear casing subassembly, drive subassembly and lock cylinder subassembly, the front frame subassembly and rear casing subassembly between form have installation cavity, be equipped with PCB board in the installation cavity, still include the middle frame of clamping between the front frame subassembly and rear casing subassembly, the middle frame includes frame body part and is located at the handle part of the frame body part ring circumference one position, the frame body part with front frame subassembly, rear casing subassembly position opposite, the handle part is located at the edge outside of front frame subassembly, rear casing subassembly. Through setting up middle frame on front frame subassembly and rear casing subassembly, be equipped with handle part on the middle frame, make this structure not only structure simplifies, production cost is low, can change the position of handle part through setting up the installation orientation of middle frame according to need simultaneously, and installation flexibility is high.

Description

Technical Field

[0001] This utility model relates to the field of door lock technology, specifically to an intelligent door lock. Background Technology

[0002] The smart door lock includes a front panel housing, a rear panel housing, a PCB board, a drive assembly, and a lock cylinder assembly. The front panel housing faces the unlocking area outside the door and is equipped with a smart unlocking module, such as a password unlocking module, a fingerprint unlocking module, or a magnetic card unlocking module. The PCB board is electrically connected to the smart unlocking module and the drive assembly, and the drive assembly is connected to the lock cylinder assembly.

[0003] To facilitate door opening, existing smart door locks typically have a handle assembly on the front panel housing. The handle assembly mainly comes in two forms: (1) a rotating handle connected to the drive assembly; after the PCB board receives the unlocking signal from the smart unlocking module, it releases the lock on the drive assembly, and rotating the handle drives the drive assembly to release the lock cylinder assembly; (2) a handle fixed to the front panel housing; after the PCB board receives the unlocking signal from the smart unlocking module, it directly drives the drive assembly to move and release the lock cylinder assembly. However, both types of handle assemblies are complex in structure and have high production costs. Furthermore, the handle assembly only has a fixed installation orientation and cannot be adjusted according to the specific installation environment, resulting in low application flexibility. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings and deficiencies of the existing technology and to provide an intelligent door lock.

[0005] The technical solution adopted by this utility model is as follows: A smart door lock includes a front frame assembly, a rear housing assembly, a drive assembly, and a lock cylinder assembly. A mounting cavity is formed between the front frame assembly and the rear housing assembly. A PCB board is disposed within the mounting cavity. The drive assembly is electrically connected to the PCB board, and the lock cylinder assembly is connected to the drive assembly. It also includes an intermediate frame sandwiched between the front frame assembly and the rear housing assembly, the intermediate frame comprising a frame portion and a handle portion located at a position around the circumference of the frame portion. The frame portion is positioned opposite to the front frame assembly and the rear housing assembly, and the handle portion is located outside the edges of the front frame assembly and the rear housing assembly.

[0006] Preferably, the frame portion has a first through hole at its center, the front frame assembly includes a front frame, the rear housing assembly includes a rear housing, the front frame is provided with a first connecting hole, and the rear housing is provided with a corresponding second connecting hole. The front frame assembly and the rear housing assembly are detachably and fixedly connected by fasteners passing through the first connecting hole, the first through hole, and the second connecting hole, and the intermediate frame is clamped between the two.

[0007] Preferably, the front frame, rear shell, and frame body are all symmetrical about the center vertically and horizontally, and their shapes are adapted to each other.

[0008] Preferably, the frame portion is symmetrical front and back.

[0009] Preferably, the front frame includes a panel frame portion and a connecting frame portion that are concentrically arranged and connected, and the outer periphery of the connecting frame portion is symmetrical about the center vertically and horizontally. The panel frame is larger than the connecting frame and forms a first abutting step with it. The connecting frame passes through the first through hole, and the panel frame is limited to the outside of the first through hole. The two ends of the middle frame abut with the first abutting step and the end of the rear housing assembly, respectively.

[0010] Preferably, the outer periphery of the connecting frame portion includes, in sequence from the direction closest to to the panel frame portion, a first annular surface and a second annular surface that are concentric and connected. The second annular surface is smaller than the first annular surface and forms a second abutting step with it. The second annular surface is adapted to the size of the inner cavity of the rear housing and passes through it to form a fit. The first annular surface is adapted to the size of the first through hole and passes through it to form a fit. The second abutting step abuts against the end of the rear housing assembly.

[0011] Preferably, the rear housing assembly further includes a gasket, which is connected between the end face of the rear housing and the intermediate frame and abuts against both.

[0012] Preferably, the front frame assembly further includes a touch panel embedded at one end of the front frame away from the rear housing assembly, and the touch panel is connected and cooperates with the PCB board.

[0013] The beneficial effects of this utility model are as follows: by setting an intermediate frame on the front frame assembly and the rear housing assembly, and providing a handle on the intermediate frame, this structure is not only simplified and has low production cost, but also allows for high installation flexibility by changing the position of the handle by setting the installation orientation of the intermediate frame. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, obtaining other drawings based on these drawings without creative effort still falls within the scope of this utility model.

[0015] Figure 1 This is a front view of an embodiment of the present utility model; Figure 2 This is an exploded structural diagram of an embodiment of the present utility model; Figure 3 This is a front view of the intermediate frame in an embodiment of the present utility model; Figure 4 This is a side sectional view of an embodiment of the present utility model; Figure 5 for Figure 4 Enlarged view of the structure at point A in the middle; Figure 6 These are front views of the middle frame in different orientations in embodiments of this utility model; In the diagram, 1 is the front frame; 2 is the rear shell; 3 is the middle frame; 4 is the PCB board; 5 is the gasket; 6 is the touch panel; 11 is the panel frame; 12 is the connecting frame; 13 is the first abutting step; 31 is the frame; 32 is the handle; 101 is the first connecting hole; 121 is the first annular surface; 122 is the second annular surface; 123 is the second low step; 202 is the second connecting hole; and 311 is the first through hole. Detailed Implementation

[0016] To make the objectives, technical solutions and advantages of this utility model clearer, the utility model will be described in further detail below with reference to the accompanying drawings.

[0017] It should be noted that all uses of "first" and "second" in the embodiments of this utility model are for the purpose of distinguishing two entities or parameters with the same name but different names. It is clear that "first" and "second" are only for the convenience of expression and should not be construed as limiting the embodiments of this utility model. Subsequent embodiments will not explain this in detail.

[0018] The directional and positional terms used in this utility model, such as "up," "down," "front," "back," "left," "right," "inner," "outer," "top," "bottom," and "side," are merely for reference to the accompanying drawings. Therefore, the directional and positional terms used are for the purpose of explaining and understanding this utility model, and not for limiting the scope of protection of this utility model.

[0019] like Figures 1 to 6 As shown in the illustration, an intelligent door lock according to an embodiment of this utility model includes a front frame assembly, a rear housing assembly, a drive assembly, and a lock cylinder assembly. A mounting cavity is formed between the front frame assembly and the rear housing assembly. A PCB board 4 is disposed within the mounting cavity. The drive assembly is electrically connected to the PCB board 4, and the lock cylinder assembly is connected to the drive assembly. It also includes an intermediate frame 3 sandwiched between the front frame assembly and the rear housing assembly. The intermediate frame 3 includes a frame portion 31 and a handle portion 32 located at a position around the circumference of the frame portion 31. The frame portion 31 is positioned opposite to the front frame assembly and the rear housing assembly, and the handle portion 32 is located outside the edges of the front frame assembly and the rear housing assembly.

[0020] With this configuration, after receiving the unlock signal, the PCB board drives the drive assembly to release the lock cylinder assembly, allowing the door to be opened by gripping the handle. By setting an intermediate frame on the front frame assembly and the rear housing assembly, and placing the handle on this intermediate frame, the structure is not only simplified and low-cost, but also allows for high installation flexibility by adjusting the installation orientation of the intermediate frame. In this embodiment, the intermediate frame is a one-piece molded component.

[0021] The drive assembly and lock cylinder assembly can be built into the mounting cavity or placed outside the mounting cavity. In this embodiment, they are placed outside the mounting cavity. The rear housing assembly is provided with openings for wiring to pass through and connect, so as to further simplify the internal structure and facilitate the miniaturization and simplification of the smart door lock's appearance.

[0022] The frame portion 31 has a first through hole 311 at its center. The front frame assembly includes a front frame 1, and the rear housing assembly includes a rear housing 2. The front frame 1 is provided with a first connecting hole 101, and the rear housing 2 is provided with a corresponding second connecting hole 201. The front frame assembly and the rear housing assembly are detachably and fixedly connected by a fastener passing through the first connecting hole 101, the first through hole 311, and the second connecting hole 201, and the middle frame 3 is clamped between the two.

[0023] This design enables convenient assembly and disassembly of the front frame, middle frame, and rear shell, ensuring the stability of their connection. Since the middle frame is clamped between the front and rear shells, its orientation can be flexibly changed while keeping the positions of the connection holes of the front frame and rear shell unchanged.

[0024] The front frame 1, rear shell 2, and frame part 31 are all symmetrical about the center vertically and horizontally, and their shapes are adapted to each other.

[0025] This design not only ensures a unified overall shape, but also, due to its symmetrical shape both vertically and horizontally, maintaining a consistent and aesthetically pleasing overall structure regardless of the orientation of the central frame, allowing the handle to be positioned as shown in Figures a and b. In this embodiment, the handle is specifically rectangular.

[0026] The frame portion 31 is symmetrical front and back.

[0027] By changing the installation orientation of the middle frame so that the handle is located in the position shown in Figure a, the overall structure of the device can be kept uniform and more flexible.

[0028] The front frame 1 includes a panel frame portion 11 and a connecting frame portion 12 that are concentrically arranged and connected to each other. The outer periphery of the connecting frame portion 12 is symmetrical about the center vertically and horizontally. The panel frame portion 11 is larger than the connecting frame portion 12 and forms a first abutting step 13 with it. The connecting frame portion 12 passes through the first through hole 311, and the panel frame portion 11 is limited to the outside of the first through hole 311. The two ends of the intermediate frame 3 abut against the first abutting step 13 and the end of the rear housing assembly, respectively.

[0029] This design allows the connecting frame to radially limit the movement of the intermediate frame, improving the ease of assembly and further enhancing the stability of the front frame, intermediate frame, and rear housing after connection. The connecting frame has a rectangular outer shape to match the overall shape of the device and is also compatible with standard PCB board shapes on the market.

[0030] The outer periphery of the connecting frame portion 12, from the direction closest to to the panel frame portion 11, includes a first annular surface 121 and a second annular surface 122 that are concentric and connected. The second annular surface 122 is smaller than the first annular surface 121 and forms a second abutting step 123 with it. The second annular surface 122 is adapted to the size of the inner cavity of the rear housing 2 and passes through it to form a fit. The first annular surface 121 is adapted to the size of the first through hole 311 and passes through it to form a fit. The second abutting step 123 abuts against the end of the rear housing assembly.

[0031] This design improves the stability of the front frame and rear housing assembly fit together.

[0032] The rear housing assembly also includes a washer 5, which is connected between the end face of the rear housing 2 and the intermediate frame 3 and abuts against them.

[0033] This design further improves the tightness of the fit between the front frame, the middle frame, and the rear housing, while also reducing frictional wear between the middle frame and the rear housing. In this embodiment, the washer is specifically located between the end face of the rear housing and the second abutment step, and abuts against both. The washer is fitted outside the second annular surface and its dimensions are adapted to fit it.

[0034] The front frame assembly also includes a touch panel 6 embedded in the end of the front frame 1 away from the rear housing assembly, and the touch panel 6 is connected and cooperates with the PCB board 4.

[0035] With this configuration, the touch panel can include a password input interface and / or a fingerprint recognition interface, and the PCB board accordingly has a password unlocking module and a fingerprint unlocking module. In this embodiment, it is specifically configured as a password input interface.

[0036] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the claims of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A smart door lock, comprising a front frame assembly, a rear housing assembly, a drive assembly, and a lock cylinder assembly, wherein a mounting cavity is formed between the front frame assembly and the rear housing assembly, a PCB board (4) is disposed within the mounting cavity, the drive assembly is electrically connected to the PCB board (4), and the lock cylinder assembly is connected to the drive assembly, characterized in that: It also includes an intermediate frame (3) sandwiched between the front frame assembly and the rear housing assembly, the intermediate frame (3) including a frame portion (31) and a handle portion (32) located at a position around the frame portion (31). The frame part (31) is positioned opposite to the front frame assembly and the rear housing assembly, and the handle part (32) is located outside the edge of the front frame assembly and the rear housing assembly.

2. The smart door lock according to claim 1, characterized in that: The frame part (31) has a first through hole (311) at its center. The front frame assembly includes a front frame (1) and the rear housing assembly includes a rear housing (2). The front frame (1) is provided with a first connecting hole (101) and the rear housing (2) is provided with a corresponding second connecting hole (201). The front frame assembly and the rear housing assembly are detachably and fixedly connected by fasteners passing through the first connecting hole (101), the first through hole (311), and the second connecting hole (201), and the middle frame (3) is clamped between the two.

3. The smart door lock according to claim 2, characterized in that: The front frame (1), rear shell (2), and frame part (31) are all symmetrical about the center, both vertically and horizontally, and their shapes are adapted to each other.

4. A smart door lock according to claim 3, characterized in that: The frame part (31) is symmetrical from front to back.

5. A smart door lock according to claim 2, characterized in that: The front frame (1) includes a panel frame portion (11) and a connecting frame portion (12) that are concentrically arranged and connected to each other. The outer periphery of the connecting frame portion (12) is symmetrical about the center vertically and horizontally. The panel frame (11) is larger than the connecting frame (12) and forms a first abutting step (13) with it. The connecting frame (12) is inserted into the first through hole (311). The panel frame (11) is limited to the outside of the first through hole (311). The two ends of the intermediate frame (3) are respectively abutted and engaged with the first abutting step (13) and the end of the rear housing assembly.

6. A smart door lock according to claim 5, characterized in that: The outer periphery of the connecting frame (12) from the direction closest to the panel frame (11) includes a first annular surface (121) and a second annular surface (122) that are concentric and connected. The second annular surface (122) is smaller than the first annular surface (121) and forms a second abutting step (123) with it. The second annular surface (122) is adapted to the inner cavity size of the rear housing (2) and passes through it to form a fit. The first annular surface (121) is adapted to the size of the first through hole (311) and passes through it to form a fit. The second abutting step (123) abuts against the end of the rear housing assembly.

7. A smart door lock according to claim 2, characterized in that: The rear housing assembly also includes a washer (5), which is connected between the end face of the rear housing (2) and the intermediate frame (3) and abuts against them.

8. A smart door lock according to any one of claims 2-7, characterized in that: The front frame assembly also includes a touch panel (6) embedded in the front frame (1) at the end away from the rear housing assembly, and the touch panel (6) is connected and cooperates with the PCB board (4).

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