A multifunctional fireproof lock box

Abstract

The present invention provides a multifunctional fireproof lock box, which relates to the technical field of electric door locks, including installing a bottom box, a circuit board, a cover plate and a control board, wherein a button column and a knob buckle are arranged on the circuit board, an embedding groove is arranged on the cover plate, an elastic sheet, a knob part and a card slot are arranged on the control board, and a card plate for contacting the inner side of the card slot, a protruding column for contacting the knob buckle and a rotating groove for conveniently rotating the knob part are arranged on the knob part, so that when the rotating groove is stuck and the knob part is rotated, the protruding column abuts against the knob buckle to control the key column function to be turned on. The present invention has a simple structure and is easy to install. The bottom box is pre-buried in the wall, and the circuit board in the bottom box is controlled by the control board on the cover plate, and the original lock function can be generated by the rotation of the knob part, which plays the role of a switch for controlling the circuit board. The overall structure has strong card buckle connection stability, and the circuit board and the control board are waterproofed, so that the overall structure has good waterproof and fireproof capabilities and high safety.

Description

Technical Field

[0001] The present invention relates to the technical field of electric door locks.

[0002] More particularly, the present invention relates to a multifunctional fireproof lock box. Background Art

[0003] At present, electric doors and windows, roller shutters, etc. are widely used in houses, warehouses, shops, etc., among which electric doors and windows are opened and closed by motors, and roller shutters are locked by roller shutter door locks and ground locks to protect the finances inside the roller shutters. The opening and closing of electric doors and windows and roller shutters are controlled by the motor controller above them, but the existing electric doors still use mechanical door locks set on the ground or above the door. When opening and closing, people need to squat or climb to open and lock. This mechanical lock is very cumbersome to use.

[0004] With the popularization of the use of electronic remote control locks, more and more electronic doors and windows now use electronically controlled locks to control motors. For example, Chinese patent utility model patent CN208137665U discloses an electronic cabinet lock, including a lock box and a mounting base plate, wherein the lock box is provided with a circuit board, an electric transmission mechanism, and a lock tongue that is transmission-connected with the electric transmission mechanism and can extend out of the lock box, and the mounting base plate is provided with a fixing hole, wherein the electric transmission mechanism includes a motor, a worm gear sleeved on the output shaft of the motor, a gear set meshing with the worm gear, and a spur rack meshing with the gear set, wherein the lower end of the spur rack is convexly provided with a linkage block, wherein the linkage block is provided with a perforation, and the rear end of the lock box is provided with a locking rod, wherein the locking rod is penetrated in the perforation, and when the circuit board receives a control signal, the motor starts and drives the locking rod to extend and retract, thereby realizing the unlocking or locking function of the lock tongue. The utility model has a simple and reasonable structure, can realize the electric unlocking and locking functions, has a self-locking function after locking, realizes the state retention, thereby ensuring that the lock is locked more in place and is safer to use.

[0005] However, the lock box in the above-mentioned electronic lock structure still has the following problems: the structure is complex and the opening and closing of the electronic lock cannot be controlled. There is a circuit board inside the lock, the lock box has poor structural properties and insufficient stability. The circuit board and the control board that controls the circuit board are not structurally sound and are prone to loosening or detachment risks, and the waterproof and fireproof properties are poor.

[0006] Therefore, in order to solve the above problems, it is very necessary for us to design a reasonable and efficient multifunctional fireproof lock box. Summary of the invention

[0007] The purpose of the present invention is to provide a multifunctional fireproof lock box with a simple structure and convenient installation. The bottom box is embedded in the wall, and the circuit board in the bottom box is controlled by the control panel on the cover plate. The original lock function can be generated by rotating the knob, which plays the role of a switch for controlling the circuit board. The overall structure has a strong snap-on connection stability, and the circuit board and the control panel are waterproofed. In this way, the overall structure has good waterproof and fireproof capabilities and high safety.

[0008] In order to achieve the above object, the present invention adopts the following technical solutions:

[0009] A multifunctional fireproof lock box comprises an installation base box, a circuit board arranged in the installation base box, a cover plate arranged on the installation base box and a control panel arranged on the cover plate, the circuit board is provided with a button column and a knob buckle for controlling the on and off function of the button column, the cover plate is provided with an embedding groove for facilitating the installation of the control panel, the control panel is provided with an elastic sheet for contacting the button column, a knob member for connecting with the knob buckle and a card slot for facilitating the installation of the knob member, the knob member is provided with a card plate for contacting the inner side of the card slot, a protruding column for contacting the knob buckle and a rotating slot for facilitating the rotation of the knob member, so that when the rotating slot is stuck and the knob member is rotated, the protruding column abuts against the knob buckle to control the opening of the button column function.

[0010] As a preferred embodiment of the present invention, the card plate of the knob member is extended in a direction close to the circuit board, a protrusion is provided at one end of the card plate away from the circuit board, a groove for cooperating with the protrusion is provided on the inner side wall of the card slot, and a baffle extending to the end of the card plate close to the circuit board is provided on the inner side wall of the card slot.

[0011] As a preferred embodiment of the present invention, the inner side wall of the card slot is provided with a limiting buckle connected to the side edge of the card plate, and the card plate is an elastic member.

[0012] As a preferred embodiment of the present invention, the card plate of the knob member is extended in a direction close to the circuit board, a protrusion is provided at one end of the card plate close to the circuit board, a groove for cooperating with the protrusion is provided on the inner side wall of the card slot, and a buckle plate extending to one end of the card slot close to the circuit board is provided on the card plate.

[0013] As a preferred embodiment of the present invention, the buckle plate is an elastic member, and the inner side wall of the slot is provided with a limiting groove connected to the side of the buckle plate.

[0014] As a preferred embodiment of the present invention, the cover plate is provided with connecting screws for connecting the cover plate and the mounting base box, and the mounting base box is provided with screw holes for facilitating the passing of the connecting screws.

[0015] As a preferred embodiment of the present invention, the button column and the knob button are both arranged on a side of the circuit board close to the cover plate, and an interface end for electrical connection with a motor controller is arranged on a side of the circuit board away from the cover plate.

[0016] As a preferred embodiment of the present invention, a circuit sealing layer is provided on a side of the circuit board away from the cover plate, and a PVC waterproof board is provided on a side of the control board away from the circuit board.

[0017] As a preferred embodiment of the present invention, the PVC waterproof board is provided with a functional protrusion connected to the elastic sheet and a through hole for facilitating the passage of the knob member, and a functional label is provided on the side of the functional protrusion away from the through hole; the number of the functional protrusions is the same as the number of the elastic sheets, and the number of the elastic sheets is the same as the number of the button columns.

[0018] As a preferred embodiment of the present invention, the control panel is a plastic panel, and the cover panel is a sheet metal component.

[0019] The beneficial effects of the multifunctional fireproof lock box of the present invention are: simple structure, easy installation, the bottom box is pre-buried in the wall, the circuit board in the bottom box is controlled by the control board on the cover plate, and the function of the original lock head can be generated by the rotation of the knob, playing the role of a switch for controlling the circuit board, the overall structure has strong snap-on connection stability, the circuit board and the control board are waterproofed, so the overall structure has good waterproof and fireproof capabilities and high safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is an exploded schematic diagram of the overall structure of an embodiment of a multifunctional fireproof lock box of the present invention;

[0021] Figure 2 This is a schematic diagram of the three-dimensional structure of a cover plate of an embodiment of a multifunctional fireproof lock box of the present invention when viewed from above;

[0022] Figure 3 This is a schematic diagram of the three-dimensional structure of a cover plate of an embodiment of a multifunctional fireproof lock box of the present invention, viewed from above;

[0023] Figure 4 It is a schematic diagram of the three-dimensional structure of an embodiment of a multifunctional fireproof lock box of the present invention (excluding the installation bottom box) in an upward direction;

[0024] Figure 5 It is a three-dimensional structural schematic diagram of the connection between the knob member and the control panel of another embodiment of a multifunctional fireproof lock box of the present invention;

[0025] Figure 6 It is a cross-sectional structural schematic diagram of the connection between the knob member and the control panel of another embodiment of a multifunctional fireproof lock box of the present invention;

[0026] Figure 7 This is a three-dimensional structural diagram of the connection between a knob member and a control panel of another embodiment of a multifunctional fireproof lock box of the present invention;

[0027] Figure 8 It is a cross-sectional structural schematic diagram of the connection between a knob member and a control panel of another embodiment of a multifunctional fireproof lock box of the present invention;

[0028] Fig. 9 This is a three-dimensional structural diagram of the connection between a knob member and a control panel of another embodiment of a multifunctional fireproof lock box of the present invention;

[0029] In the figure: 1. Install the base box, 11. Screw hole, 2. Circuit board, 21. Button column, 22. Knob buckle, 23. Interface end, 24. Circuit sealing layer, 3. Cover plate, 31. Embedded slot, 32. Connecting screws, 4. Control board, 41. Elastic sheet, 42. Knob piece, 421. Card plate, 422. Extending column, 423. Rotating slot, 424. Protrusion, 425. Buckle plate, 43. Card slot, 431. Groove, 432. Baffle, 433. Limit buckle, 434. Limit slot, 44. PVC waterproof board, 441. Functional protrusion, 442. Perforation. DETAILED DESCRIPTION

[0030] The following are specific embodiments of the present invention, which further describe the technical solutions of the present invention, but the present invention is not limited to these embodiments.

[0031] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangement and steps of modules and steps set forth in these embodiments do not limit the scope of the present invention.

[0032] At the same time, it should be understood that for the convenience of description, the processes in the drawings are not just performed separately, but multiple steps are performed in an interlaced manner.

[0033] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the present invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0034] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

[0035] Technologies, methods, and systems known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and systems should be considered part of the authorization specification.

[0036] Embodiment 1: Figures 1 to 4 The figure is only one of the embodiments of the present invention, including a mounting base box 1, a circuit board 2 arranged in the mounting base box 1, a cover plate 3 arranged on the mounting base box 1, and a control board 4 arranged on the cover plate 3. The circuit board 2 is provided with a button column 21 and a knob 22 for controlling the on and off function of the button column 21. The cover plate 3 is provided with an embedding groove 31 for facilitating the installation of the control board 4. The control board 4 is provided with an elastic sheet 4 for contacting the button column 21. 1. A knob member 42 connected to the knob buckle 22 and a slot 43 for facilitating the installation of the knob member 42. The knob member 42 is provided with a card plate 421 for contacting the inner side of the slot 43, a protruding column 422 for contacting the knob buckle 22, and a rotating slot 423 for facilitating the rotation of the knob member 42, so that the protruding column 422 abuts against the knob buckle 22 when the knob member 42 is rotated, thereby controlling the button column 21 to turn on the function.

[0037] In the present invention, an installation base box 1 is pre-buried in a wall, and the installation base box 1 is a cavity with an opening on one side. A circuit board 2 is arranged in the installation base box 1, and a cover plate 3 covers one side of the opening of the installation base box 1. A control board 4 that can be connected to the circuit board 2 is arranged on the cover plate 3. The circuit opening and closing of the circuit board 2 is controlled by buttons on the control board 4, thereby controlling the opening, closing, stopping, quality inspection and resetting of electric doors and windows.

[0038] First, the structure of the lock box 1 and the cover plate 3 . The installation base box 1 is pre-buried in the wall. The installation base box 1 is a cube with one side open. The cover plate 3 covers the opening of the installation base box 1 .

[0039] Here, the installation base box 1 can be embedded in the platform or in the wall. We take embedding in the platform as an example, that is, taking the opening direction of the installation base box 1 as upward, that is, the cover plate 3 is located at the upper end of the installation base box 1, to explain the entire fireproof lock box, the same below.

[0040] Next is the structure of the circuit board 2, which is arranged in the mounting base box 1. The circuit board 2 is provided with a button column 21 and a knob 22 for controlling the opening and closing of the button column 21. Only when the knob 22 is pressed, the circuit where the button column 21 is located is connected, and the function of the button column 21 can be turned on. There are many button columns 21, some of which are used to control the opening of electric doors and windows (similar to the upward movement of rolling shutters), and some of which are used to control the closing of electric doors and windows (similar to the downward movement of rolling shutters), and so on.

[0041] Here, the button column 21 and the knob button 22 are both arranged on the side of the circuit board 2 close to the cover plate 3, and the side of the circuit board 2 away from the cover plate 3 is provided with an interface end 23 for electrical connection with the motor controller. That is, when the button column 21 is pressed, the electrical signal of the circuit board 2 is sent to the motor controller through the interface end 23, and the motor controller controls the motor to drive the electric door and window to work.

[0042] Next is the structure of the control panel 4. The cover panel 3 is provided with an embedding groove 31 for facilitating the installation of the control panel 4, that is, the control panel 4 is embedded in the embedding groove 31 in the middle of the cover panel 3. The control panel 4 is provided with an elastic sheet 41 for contacting the button column 21, a knob member 42 for connecting with the knob buckle 22, and a card slot 43 for facilitating the installation of the knob member 42.

[0043] There are many elastic sheets 41. When the elastic sheet 41 is pressed, the elastic sheet 41 bounces down and presses against the button column 21, so that the button column 21 is pressed, thereby controlling the opening and closing of the electric door and window; the knob member 42 is arranged in the card slot 43, and the card slot 43 is a circular slot. The knob member 42 can be rotated to press against the knob buckle 22, so that the knob buckle 22 is pressed, and the function of the button column 21 is turned on.

[0044] Finally, the control board 4 cooperates with the circuit board 2. The knob part 42 is provided with a card plate 421 for contacting the inner side of the card slot 43, a protruding column 422 for contacting the knob buckle 22, and a rotating slot 423 for facilitating the rotation of the knob part 42, so that when the rotating slot 423 is stuck and the knob part 42 is rotated, the protruding column 422 presses against the knob buckle 22, thereby controlling the button column 21 to turn on the function.

[0045] Of course, the protruding column 422 is not arranged at the center of the knob member 42, but is eccentrically arranged and extends downward. When the knob member 42 is rotated, the protruding column 422 rotates around the axis of the knob member 42 to resist or release the knob buckle 22.

[0046] When the key or special tool is inserted into the rotation slot 423, the knob 42 is rotated so that the extension column 422 abuts against the knob buckle 22. At this time, by pressing the corresponding elastic sheet 41, the designated button column 21 is pressed to control the operation of the electric door and window. Of course, by rotating the rotation slot 423 of the knob 42 again, the extension column 422 is separated from the knob buckle 22. At this time, any pressing of the elastic sheet 41 and the button column 21 will not control the operation of the electric door and window again. The purpose of this is to produce the same effect as the original lock function, and play the role of the switch of the circuit board control.

[0047] It is also important to note that the control board 4 is snap-connected to the embedding groove 31 of the cover plate 3; similarly, the circuit board 2 is also snap-connected to the lower surface of the control board 4; the knob 42 is also snap-connected to the slot 43, and the overall structure has a strong snap-connection stability.

[0048] In addition, a circuit sealing layer 24 is provided on the side of the circuit board 2 away from the cover plate 3, and a PVC waterproof board 44 is provided on the side of the control board 4 away from the circuit board 2. The overall structure has good waterproof and fireproof capabilities and high safety.

[0049] The multifunctional fireproof lock box of the present invention has a simple structure and is easy to install. The bottom box is pre-buried in the wall. The circuit board in the bottom box is controlled by the control panel on the cover plate, and the function of the original lock head can be generated by rotating the knob, which plays the role of a switch for controlling the circuit board. The overall structure has a strong snap-on connection stability, and the circuit board and the control panel are waterproofed. In this way, the overall structure has good waterproof and fireproof capabilities and high safety.

[0050] Embodiment 2, still as Figures 5 to 9 The figure is only one of the embodiments of the present invention. Based on the first embodiment, in a multifunctional fireproof lock box of the present invention, the installation methods of the knob member 42 are as follows:

[0051] The first type: the card plate 421 of the knob member 42 is extended in the direction close to the circuit board 2, and a protrusion 424 is provided at one end of the card plate 421 away from the circuit board 2, and a groove 431 for cooperating with the protrusion 424 is provided on the inner side wall of the card slot 43, and a baffle 432 extending to the end of the card plate 421 close to the circuit board 2 is provided on the inner side wall of the card slot 43. Here, a limit buckle 433 connected to the side of the card plate 421 is provided on the inner side wall of the card slot 43, and the card plate 421 is an elastic member; Figure 5 , 6 The knob 42 is inserted into the slot 43 of the control panel 4 from bottom to top.

[0052] When the knob member 42 is installed in the slot 43, if the knob member 42 is to be rotated, the limit buckle 433 on the inner wall of the slot 43 provides a large resistance to the rotation of the knob member 42. After the knob member 42 is rotated 90° so that the card plate 421 passes through the entirety to the other side of the limit buckle 433, the resistance disappears and the knob member 42 is rotated into place.

[0053] The second type: the card plate 421 of the knob member 42 is extended in the direction close to the circuit board 2, and a protrusion 424 is provided at one end of the card plate 421 close to the circuit board 2, and a groove 431 for cooperating with the protrusion 424 is provided on the inner wall of the card slot 43, and a buckle plate 425 extending to the end of the card slot 43 close to the circuit board 2 is provided on the card plate 421, where the buckle plate 425 is an elastic member, and a limiting groove 434 connected to the side of the buckle plate 425 is provided on the inner wall of the card slot 43; Figure 7 , 8 The knob 42 is inserted into the slot 43 of the control panel 4 from top to bottom.

[0054] When the knob member 42 is installed in the slot 43, if the knob member 42 is to be rotated, the limit groove 434 on the inner wall of the slot 43 provides a large resistance to the rotation of the knob member 42. After the knob member 42 is rotated 90° so that the side wall of the buckle plate 425 passes through the other limit groove 434 on the inner wall of the slot 43, the resistance disappears and the knob member 42 is rotated into place.

[0055] The third type: the card plate 421 of the knob member 42 is extended in the direction close to the circuit board 2, and a protrusion 424 is provided at one end of the card plate 421 close to the circuit board 2, and a groove 431 for cooperating with the protrusion 424 is provided on the inner wall of the card slot 43. A gusset 425 extending to one end of the card slot 43 close to the circuit board 2 is provided on the card plate 421, and a limiting groove 434 connected to the end of the gusset 425 is provided on the inner wall of the card slot 43. Unlike the second type, the end of the gusset 425 extends into the limiting groove 434. Of course, the gusset 425 is an elastic member, such as Fig. 9 shown.

[0056] When the knob 42 is installed in the slot 43 , if the knob 42 is to be rotated, there is resistance when the end of the buckle plate 425 rotates from one limiting slot 434 to another limiting slot 434 .

[0057] The core concept of the above three methods is the same, so that the knob 42 can be rotated to press against the knob buckle 22, but it is not easy to be rotated. Only by inserting a special tool into the rotation slot 423 on the knob 42 and twisting the knob 42 can the knob 42 be controlled to rotate, thereby preventing the knob 42 of the entire device from being twisted by mistake and causing danger. The knob 42 can only be rotated 90°, and there are two states at both ends of the knob 42 rotation. One state is that the extended column 422 presses against the knob buckle 22, and the electric door and window can be controlled by the button column 21; the other state is that the extended column 422 is separated from the knob buckle 22, and the electric door and window cannot be controlled by the button column 21 at this time.

[0058] Embodiment 2, still as Figures 1 to 9 The figure shown is only one embodiment of the present invention. On the basis of all the above embodiments, in a multifunctional fireproof lock box of the present invention, the cover plate 3 is provided with connecting screws 32 for connecting the cover plate 3 and the mounting base box 1, and the mounting base box 1 is provided with screw holes 11 for facilitating the passage of the connecting screws 32.

[0059] Of course, the outer side of the connecting screw 32 is provided with an external thread, the screw hole 11 is provided with an internal thread matching the external thread, and the number of the connecting screws 32 is multiple, which can ensure that the connection between the cover plate 3 and the mounting base box 1 is more stable.

[0060] Furthermore, the PVC waterproof board 44 is provided with a functional protrusion 441 connected to the elastic sheet 41 and a through hole 442 for facilitating the passage of the knob member 42, and a functional label is provided on the side of the functional protrusion 441 away from the through hole 442; the number of the functional protrusions 441 is the same as the number of the elastic sheets 41, and the number of the elastic sheets 41 is the same as the number of the button columns 21.

[0061] Finally, the control panel 4 is a plastic panel, and the cover panel 3 is a sheet metal component.

[0062] The multifunctional fireproof lock box of the present invention has a simple structure and is easy to install. The bottom box is pre-buried in the wall. The circuit board in the bottom box is controlled by the control panel on the cover plate, and the function of the original lock head can be generated by rotating the knob, which plays the role of a switch for controlling the circuit board. The overall structure has a strong snap-on connection stability, and the circuit board and the control panel are waterproofed. In this way, the overall structure has good waterproof and fireproof capabilities and high safety.

[0063] The present invention is not limited to the above specific implementations, and the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made to the above implementations based on the technical essence of the present invention shall be included in the protection scope of the present invention.

Claims

1. A multifunctional fireproof lock box, characterized in that: The invention comprises an installation base box (1), a circuit board (2) arranged in the installation base box (1), a cover plate (3) arranged on the installation base box (1), and a control board (4) arranged on the cover plate (3); the circuit board (2) is provided with a button column (21) and a knob button (22) for controlling the on and off of the function of the button column (21); the cover plate (3) is provided with an embedding groove (31) for facilitating the installation of the control board (4); the control board (4) is provided with an elastic sheet (41) for contacting the button column (21), a knob member (42) for connecting to the knob button (22), and a card slot (41) for facilitating the installation of the knob member (42). 3), the knob member (42) is provided with a card plate (421) for contacting the inner side of the card slot (43), a protruding column (422) for contacting the knob buckle (22), and a rotation slot (423) for facilitating the rotation of the knob member (42), so that when the knob member (42) is rotated by locking the rotation slot (423), the protruding column (422) abuts against the knob buckle (22), thereby controlling the button column (21) to activate a function; the cover plate (3) is provided with connecting screws (32) for connecting the cover plate (3) and the mounting base box (1); and a circuit sealing adhesive layer (24) is provided on a side of the circuit board (2) away from the cover plate (3).

2. A multifunctional fireproof lock box according to claim 1, characterized in that: The card plate (421) of the knob member (42) is extended in a direction close to the circuit board (2); a protrusion (424) is provided at one end of the card plate (421) away from the circuit board (2); a groove (431) for cooperating with the protrusion (424) is provided on the inner side wall of the card slot (43); and a baffle (432) is provided on the inner side wall of the card slot (43) extending to one end of the card plate (421) close to the circuit board (2).

3. A multifunctional fireproof lock box according to claim 2, characterized in that: The inner side wall of the clamping slot (43) is provided with a limiting buckle (433) connected to the side edge of the clamping plate (421), and the clamping plate (421) is an elastic member.

4. The multifunctional fireproof lock box according to claim 1, characterized in that: The card plate (421) of the knob member (42) is extended in a direction close to the circuit board (2); a protrusion (424) is provided at one end of the card plate (421) close to the circuit board (2); a groove (431) for cooperating with the protrusion (424) is provided on the inner side wall of the card slot (43); and a buckle plate (425) is provided on the card plate (421) and extends to one end of the card slot (43) close to the circuit board (2).

5. A multifunctional fireproof lock box according to claim 4, characterized in that: The buckle plate (425) is an elastic member, and the inner side wall of the clamping slot (43) is provided with a limiting slot (434) connected to the side edge of the buckle plate (425).

6. The multifunctional fireproof lock box according to claim 1, characterized in that: The installation base box (1) is provided with screw holes (11) for facilitating the passage of the connecting screws (32).

7. The multifunctional fireproof lock box according to claim 1, characterized in that: The button column (21) and the knob button (22) are both arranged on a side of the circuit board (2) close to the cover plate (3), and an interface terminal (23) for electrical connection with a motor controller is arranged on a side of the circuit board (2) away from the cover plate (3).

8. The multifunctional fireproof lock box according to claim 1, characterized in that: A PVC waterproof board (44) is provided on a side of the control board (4) away from the circuit board (2).

9. A multifunctional fireproof lock box according to claim 8, characterized in that: The PVC waterproof plate (44) is provided with a functional protrusion (441) connected to the elastic sheet (41) and a through hole (442) for facilitating the passage of the knob member (42); a functional label is provided on a side of the functional protrusion (441) away from the through hole (442); the number of the functional protrusions (441) is the same as the number of the elastic sheets (41), and the number of the elastic sheets (41) is the same as the number of the button columns (21).

10. The multifunctional fireproof lock box according to claim 1, characterized in that: The control panel (4) is a plastic panel, and the cover panel (3) is a sheet metal component.

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