A multifunctional household security device

Abstract

The present invention relates to the field of security technology, specifically a multifunctional household security device, including a three-way pipe, a smoke sensing mechanism, a monitoring mechanism and an adjusting mechanism, the three-way pipe is provided with a connecting portion, the adjusting mechanism is fixedly connected to the connecting portion, the three-way pipe includes two branch pipe openings and a main pipe opening, the two branch pipe openings and the main pipe opening are both circular, the axes of the two branch pipe openings are symmetrically arranged on both sides of the axis of the main pipe opening, the monitoring mechanism includes an infrared emitting component, a first light splitting prism and a camera, the infrared emitting component is fixedly connected to a branch pipe opening, the first light splitting prism is circular, the axis of the first light splitting prism is collinear with the axis of the main pipe opening, and the infrared emitting component includes a shell and a plurality of infrared lamps. The beneficial effect of the present invention is that the monitoring device and the smoke sensing device are combined together, and the monitoring device has multiple functions such as monitoring, smoke sensing, harmful gas component detection, temperature sensing and humidity sensing.

Description

Technical Field

[0001] The invention relates to the technical field of security, in particular to a multifunctional household security device. Background Art

[0002] Monitoring is one of the most widely used systems in security systems. Among them, infrared monitoring cameras are widely used. Existing infrared cameras emit infrared light through infrared lamps, and then receive infrared light reflected by objects through cameras. The received infrared light is analyzed by analysis equipment to produce images, thereby achieving the purpose of monitoring. Existing photoelectric smoke sensors also emit infrared light through infrared lamps. The infrared light travels in a straight line in the optical maze. A photosensitive element is provided on the side of the optical maze. When there is a large amount of smoke in the optical maze, the infrared optics is refracted so that the photosensitive element senses the infrared light, thereby generating a signal and transmitting the signal to the alarm system. Both infrared monitoring cameras and photoelectric smoke sensors need to emit infrared light through infrared lamps. Installing infrared monitoring cameras and photoelectric smoke sensors at the same time will increase the installation cost. In addition, it is necessary to install air detection devices, temperature sensors, and humidity sensors at home, which requires a lot of expenses and is also cumbersome to install. Summary of the invention

[0003] The object of the present invention is to provide a multifunctional household security device which has both an infrared monitoring function and a smoke sensing alarm function.

[0004] The technical scheme of the present invention is: comprising a three-way pipe with a Y-shaped structure, a smoke sensing mechanism, a control terminal, a monitoring mechanism and an adjusting mechanism, wherein the smoke sensing mechanism, the monitoring mechanism and the adjusting mechanism are all connected to the control terminal, the monitoring mechanism is installed in the three-way pipe, the smoke sensing mechanism is fixedly connected to one end of the three-way pipe, the three-way pipe is provided with a connecting portion fixedly connected thereto, the adjusting mechanism is fixedly connected to the connecting portion, the three-way pipe comprises two branch pipe openings and a main pipe opening, the main pipe opening and the two branch pipe openings are both circular, the axes of the two branch pipe openings are symmetrically arranged on both sides of the axis of the main pipe opening, the monitoring mechanism comprises an infrared emitting assembly, a first light splitting prism and a camera, the infrared emitting assembly is fixedly connected to one branch pipe opening, the first light splitting prism is circular and the first light splitting prism is installed in the three-way pipe, the axis of the first light splitting prism is colinear with the axis of the main pipe opening, the camera is installed at the main pipe opening and the rear end of the camera is fixedly connected to the middle part of the first light splitting prism, the infrared emitting assembly comprises a shell and a plurality of infrared lamps installed at the front end of the shell, and the front end of the shell is fixedly connected to the three-way pipe.

[0005] In a preferred embodiment of the present invention, a concave lens is provided at the main port of the three-way pipe, and the concave lens is located directly in front of the camera.

[0006] In a preferred embodiment of the present invention, a convex lens is provided at one branch pipe opening of the three-way pipe. The convex lens is circular and the axis of the convex lens is colinear with the axis of the branch pipe opening fixedly connected thereto.

[0007] In a preferred embodiment of the present invention, the smoke sensing mechanism includes a light funnel and a photosensitive shell, the light funnel is fixedly connected to a branch pipe opening of the three-way pipe, the photosensitive shell is fixedly connected to the light funnel, a first accommodating chamber and a second accommodating chamber separated from each other are provided in the photosensitive shell, the first accommodating chamber is communicated with the light funnel, a second light splitting prism arranged obliquely is provided between the first accommodating chamber and the second accommodating chamber, a first photosensitive element arranged toward the second light splitting prism is provided in the second accommodating chamber, a first arc-shaped channel is provided at the front of the first accommodating chamber, a first reflector is provided at the end of the first arc-shaped channel, a second arc-shaped channel connected to the first arc-shaped channel is also provided at the end of the first arc-shaped channel, a second reflector is provided at the end of the second arc-shaped channel, and a second photosensitive element facing the second reflector is provided on the side of the second reflector.

[0008] In a preferred embodiment of the present invention, a controller is provided in the connecting part, the camera, infrared lamp, first light sensing element and second light sensing element are all electrically connected to the controller, a spectral analysis device is provided in the control terminal, the first light sensing element and second light sensing element are both connected to the spectral analysis device, and the controller is connected to the control terminal.

[0009] In a preferred embodiment of the present invention, a plurality of smoke-permeable holes are provided on the side wall of the photosensitive shell, and a light-shielding plate fixedly connected to the photosensitive shell is provided beside each smoke-permeable hole.

[0010] In a preferred embodiment of the present invention, the adjustment mechanism includes a first adjustment component and a second adjustment component, the first adjustment component is fixedly connected to the connecting portion, and the second adjustment component is installed on the upper end of the first adjustment component.

[0011] In a preferred embodiment of the present invention, the first adjustment component includes a mounting block, an articulated shaft and a first adjustment motor, one end of the mounting block is provided with an articulated seat, one end of the connecting portion is provided with an articulated block, the articulated shaft sequentially passes through the articulated seat and the articulated block to articulate the two, the first adjustment motor is installed on the side of the mounting block and a driving gear is provided at its output end, one end of the articulated shaft is provided with a driven gear and the driven gear is meshed with the driving gear, and a shell for protecting the first adjustment motor is provided on the side of the mounting block.

[0012] In a preferred embodiment of the present invention, the second adjustment component includes a fixed block and a second adjustment motor, the second adjustment motor is installed in the fixed block and the output end of the second adjustment motor passes through the fixed block and is fixedly connected to the upper end of the mounting block, the upper end of the fixed block is provided with a connecting plate, and the connecting plate is provided with a plurality of fixing holes distributed in a circumference.

[0013] In a preferred embodiment of the present invention, a temperature sensor and a humidity sensor are provided in the first accommodating chamber, and both the temperature sensor and the humidity sensor are electrically connected to the controller.

[0014] The present invention provides a multifunctional household security device through improvements. Compared with the prior art, the present invention has the following improvements and advantages: infrared light is emitted by an infrared lamp. After the infrared light propagates in a straight line to a first beam splitter, most of the infrared light is refracted through the first beam splitter and emitted from the main pipe port to the outside of the three-way pipe. When the infrared light is irradiated on surrounding objects, reflection occurs. The reflected infrared light is received by a camera to monitor the surrounding environment. Some of the infrared light is reflected to a smoke sensing mechanism, which senses the smoke situation in the surrounding environment. The angle of the monitoring mechanism can be adjusted by an adjustment mechanism to increase the monitoring range of the monitoring mechanism. The present invention combines the monitoring mechanism and the smoke sensing mechanism together, and emits infrared light through the same infrared emitting component, which not only reduces the cost of the monitoring equipment and the smoke sensing equipment, but also reduces energy consumption. While monitoring, it can sense the smoke situation and detect the components of harmful gases in the air, and can also collect information such as air humidity and temperature at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further explained below in conjunction with the accompanying drawings and Examples:

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0017] Figure 2 A top view of the present invention;

[0018] Figure 3 for Figure 2 Sectional view along line c-c;

[0019] Figure 4 for Figure 3 The enlarged view of point A in the middle;

[0020] Figure 5 is a cross-sectional view of the present invention;

[0021] Figure 6 for Figure 4 The enlarged view of point B in the middle;

[0022] Figure 7 It is a partial cross-sectional view of the present invention;

[0023] Figure 8 for Figure 6 Enlarged view of point C in the middle;

[0024] Fig. 9It is a schematic diagram of the split three-dimensional structure of the present invention;

[0025] Description drawings: three-way pipe 1, smoke sensing mechanism 2, light funnel 2a, photosensitive shell 2b, smoke penetration hole 2b1, light shielding plate 2b2, second accommodating chamber 2d, second light splitting prism 2e, first light sensing element 2f, first arc channel 2g, first reflector 2h, second arc channel 2j, second reflector 2k, second light sensing element 2m, monitoring mechanism 3, infrared emitting component 3a, shell 3a1, infrared lamp 3a2, first light splitting prism 3b, camera 3c, adjustment mechanism 4, first adjustment component 4a, mounting block 4a1, hinge shaft 4a2, first adjustment motor 4a3, hinge seat 4a4, hinge block 4a5, driving gear 4a6, driven gear 4a7, shell 4a8, second adjustment component 4b, fixing block 4b1, second adjustment motor 4b2, connecting piece 4b3, fixing hole 4b4, connecting part 5, concave lens 6, convex lens 7, temperature sensor 8, humidity sensor 9. DETAILED DESCRIPTION

[0026] The following will be combined with the attached Figures 1 to 9 The present invention is described in detail, and the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] The present invention provides a multifunctional household security device through improvement. Figure 1-Figure 9As shown, it includes a three-way pipe 1 with a Y-shaped structure, a smoke sensing mechanism 2, a control terminal, a monitoring mechanism 3 and an adjusting mechanism 4, wherein the smoke sensing mechanism 2, the monitoring mechanism 3 and the adjusting mechanism 4 are all connected to the control terminal, the monitoring mechanism 3 is installed in the three-way pipe 1, the smoke sensing mechanism 2 is fixedly connected to one end of the three-way pipe 1, the three-way pipe 1 is provided with a connecting portion 5 fixedly connected thereto, the adjusting mechanism 4 is fixedly connected to the connecting portion 5, the three-way pipe 1 includes two branch pipe openings and a main pipe opening, the main pipe opening and the two branch pipe openings are all circular, and the axes of the two branch pipe openings are symmetrically arranged on both sides of the axis of the main pipe opening, the monitoring mechanism 3 includes an infrared emitting component 3a, a first light splitting prism 3b and a camera 3c, the infrared emitting component 3a It is fixedly connected to a branch pipe outlet, the first beam splitter 3b is circular and is installed in the three-way pipe 1, the axis of the first beam splitter 3b is colinear with the axis of the main pipe outlet, the camera 3c is installed at the main pipe outlet and the rear end of the camera 3c is fixedly connected to the middle of the first beam splitter 3b, the infrared emitting component 3a includes a shell 3a1 and a plurality of infrared lamps 3a2 installed at the front end of the shell 3a1, and the front end of the shell 3a1 is fixedly connected to the three-way pipe 1; the infrared light is emitted by the infrared lamp 3a2, and after the infrared light propagates in a straight line to the first beam splitter 3b, most of the infrared light is refracted through the first beam splitter 3b and emitted from the main pipe outlet to the outside of the three-way pipe 1, and some of the infrared light is reflected to the smoke sensing mechanism 2.

[0028] The working principle of the present invention is as follows: infrared light is emitted by the infrared lamp 3a2. After the infrared light propagates in a straight line to the first beam splitter 3b, most of the infrared light is refracted through the first beam splitter 3b and emitted from the main port to the outside of the three-way pipe 1. When the infrared light is irradiated on the surrounding objects, reflection will occur. The reflected infrared light is received by the camera 3c to monitor the surrounding environment. Some of the infrared light is reflected to the smoke sensing mechanism 2. The smoke sensing mechanism 2 senses the smoke situation in the surrounding environment and generates a signal which is transmitted to the control terminal through the controller. The control terminal analyzes the signal to know whether there is harmful gas in the air. The angle of the monitoring mechanism 3 can be adjusted by the adjustment mechanism 4 to increase the monitoring range of the monitoring mechanism 3.

[0029] A concave lens 6 is provided at the main pipe port of the three-way pipe 1, and the concave lens 6 is located directly in front of the camera 3c; when the infrared light is emitted from the main pipe port to the outside of the three-way pipe 1, the infrared light is diverged by the concave lens 6, so that the infrared light irradiates a larger range.

[0030] A convex lens 7 is provided at a branch pipe opening of the three-way pipe 1. The convex lens 7 is circular and the axis of the convex lens 7 is collinear with the axis of the branch pipe opening fixedly connected thereto. The infrared light reflected toward the smoke sensing mechanism 2 by the first beam splitter prism 3b is weak and scattered, and the infrared light is gathered by the convex lens 7 to concentrate the infrared light.

[0031] The smoke sensing mechanism 2 includes a light funnel 2a and a photosensitive shell 2b, wherein the light funnel 2a is fixedly connected to a branch pipe opening of the three-way pipe 1, and the photosensitive shell 2b is fixedly connected to the light funnel 2a, and a first accommodating chamber and a second accommodating chamber 2d separated from each other are provided in the photosensitive shell 2b, the first accommodating chamber is communicated with the light funnel 2a, a second light splitting prism 2e arranged obliquely is provided between the first accommodating chamber and the second accommodating chamber 2d, a first light sensing element 2f arranged toward the second light splitting prism 2e is provided in the second accommodating chamber 2d, a first arc-shaped channel 2g is provided at the front part of the first accommodating chamber, a first reflector 2h is provided at the end of the first arc-shaped channel 2g, a second arc-shaped channel 2j communicated with the first arc-shaped channel 2g is also provided at the end of the first arc-shaped channel 2g, a second reflector 2k is provided at the end of the second arc-shaped channel 2j, and a second reflector 2k is provided on the side of the second reflector 2k facing the second reflector 2k Photosensitive element 2m; the infrared light concentrated in the middle can be irradiated into the photosensitive shell 2b through the light funnel 2a, and the infrared light dispersed at the edge can be blocked by the side wall of the light funnel 2a. After the infrared light reaches the second beam splitter 2e, part of the infrared light is refracted and irradiated to the first photosensitive element 2f, and the spectrum information is collected by the first photosensitive element 2f, and analyzed by the spectrum analysis device. The spectrum analysis device analyzes the cost of harmful gases in the air according to the spectrum information. Another part of the infrared light is reflected and enters the first accommodating cavity. If there is smoke in the first accommodating cavity, the infrared light is reflected and refracted by the smoke, and propagates along the first arc channel 2g and enters the second arc channel 2j under the reflection of the first reflector 2h. The infrared light passes through the second arc channel 2j and is reflected by the second reflector 2k and is emitted to the second photosensitive element 2m, and the second photosensitive element 2m generates a smoke signal.

[0032] A controller is provided in the connecting part 5, and the camera 3c, infrared lamp 3a2, first light sensing element 2f and second light sensing element 2m are all electrically connected to the controller; a spectral analysis device is provided in the control terminal, and the first light sensing element 2f and second light sensing element 2m are both connected to the spectral analysis device, and the controller is connected to the control terminal; the operation of the camera 3c and the infrared lamp 3a2 is controlled by the controller, and the signals of the first light sensing element 2f and second light sensing element 2m are received by the controller.

[0033] A plurality of smoke holes 2b1 are provided on the side wall of the photosensitive shell 2b, and a shading plate 2b2 fixedly connected to the photosensitive shell 2b is provided next to each smoke hole 2b1; smoke and air can enter the first accommodating chamber and the second accommodating chamber 2d through the smoke holes 2b1, and the shading plate 2b2 prevents external light from entering the first accommodating chamber and the second accommodating chamber 2d and interfering therewith.

[0034] The adjustment mechanism 4 includes a first adjustment component 4a and a second adjustment component 4b, wherein the first adjustment component 4a is fixedly connected to the connecting portion 5, and the second adjustment component 4b is installed on the upper end of the first adjustment component 4a; through the first adjustment component 4a and the second adjustment component 4b, the camera 3c can be controlled to monitor multiple angles, thereby increasing its monitoring range.

[0035] The first adjustment component 4a includes a mounting block 4a1, an articulated shaft 4a2 and a first adjustment motor 4a3. One end of the mounting block 4a1 is provided with an articulated seat 4a4, one end of the connecting portion 5 is provided with an articulated block 4a5, the articulated shaft 4a2 sequentially passes through the articulated seat 4a4 and the articulated block 4a5 to articulate the two, the first adjustment motor 4a3 is installed on the side of the mounting block 4a1 and a driving gear 4a6 is provided at its output end, one end of the articulated shaft 4a2 is provided with a driven gear 4a7 and the driven gear 4a7 is meshed with the driving gear 4a6, the mounting block 4a1 is provided with an articulated seat 4a4, one end of the connecting portion 5 is provided with an articulated block 4a5, the articulated shaft 4a2 sequentially passes through the articulated seat 4a4 and the articulated block 4a5 to articulate the two, the first adjustment motor 4a3 is installed on the side of the mounting block 4a1 and a driving gear 4a6 is provided at its output end, the driven gear 4a7 is meshed with the driving gear 4a6, and the mounting block 4a1 is provided with an articulated seat 4a4. A housing 4a8 for protecting the first adjusting motor 4a3 is provided on the side of a1; the first adjusting motor 4a3 drives the driving gear 4a6 to rotate, and the driving gear 4a6 drives the driven gear 4a7 to rotate, so that the connecting part 5 rotates around the axis of the hinge shaft 4a2, and the diameter of the driving gear 4a6 is smaller than the diameter of the driven gear 4a7. When the driving gear 4a6 and the driven gear 4a7 have the same linear speed, the rotation angle of the driven gear 4a7 is smaller than the rotation angle of the driving gear 4a6 in the same time, which can play a role in deceleration.

[0036] The second adjustment component 4b includes a fixed block 4b1 and a second adjustment motor 4b2, the second adjustment motor 4b2 is installed in the fixed block 4b1, and the output end of the second adjustment motor 4b2 passes through the fixed block 4b1 and is fixedly connected to the upper end of the mounting block 4a1, and a connecting piece 4b3 is provided at the upper end of the fixed block 4b1, and a plurality of fixing holes 4b4 distributed in a circumference are provided on the connecting piece 4b3; the second adjustment motor 4b2 drives the mounting block 4a1 to rotate, so that the monitoring mechanism 3 and the smoke sensing mechanism 2 connected to the mounting block 4a1 rotate.

[0037] A temperature sensor 8 and a humidity sensor 9 are provided in the first accommodating chamber, and both the temperature sensor 8 and the humidity sensor 9 are electrically connected to the controller; the temperature and humidity of the air are detected respectively by the temperature sensor 8 and the humidity sensor 9.

[0038] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A multifunctional household security device, characterized in that: The invention comprises a three-way pipe (1) with a Y-shaped structure, a smoke sensing mechanism (2), a control terminal, a monitoring mechanism (3) and an adjusting mechanism (4), wherein the smoke sensing mechanism (2), the monitoring mechanism (3) and the adjusting mechanism (4) are all connected to the control terminal, the monitoring mechanism (3) is installed in the three-way pipe (1), the smoke sensing mechanism (2) is fixedly connected to one end of the three-way pipe (1), the three-way pipe (1) is provided with a connecting portion (5) fixedly connected thereto, the adjusting mechanism (4) is fixedly connected to the connecting portion (5), the three-way pipe (1) comprises two branch pipe openings and one main pipe opening, the main pipe opening and the two branch pipe openings are all circular, and the axes of the two branch pipe openings are symmetrically arranged on both sides of the axis of the main pipe opening. The monitoring mechanism (3) comprises an infrared emitting component (3a), a first light splitting prism (3b) and a camera (3c); the infrared emitting component (3a) is fixedly connected to a branch pipe port; the first light splitting prism (3b) is circular and is installed in a three-way pipe (1); the axis of the first light splitting prism (3b) is colinear with the axis of the main pipe port; the camera (3c) is installed at the main pipe port and the rear end of the camera (3c) is fixedly connected to the middle of the first light splitting prism (3b); the infrared emitting component (3a) comprises a shell (3a1) and a plurality of infrared lamps (3a2) installed at the front end of the shell (3a1); the front end of the shell (3a1) is fixedly connected to the three-way pipe (1); The smoke sensing mechanism (2) comprises a light funnel (2a) and a photosensitive shell (2b), wherein the light funnel (2a) is fixedly connected to a branch pipe opening of the three-way pipe (1), and the photosensitive shell (2b) is fixedly connected to the light funnel (2a), wherein a first accommodating chamber and a second accommodating chamber (2d) separated from each other are provided in the photosensitive shell (2b), wherein the first accommodating chamber and the light funnel (2a) are communicated with each other, and a second light splitting prism (2e) arranged in an inclined manner is provided between the first accommodating chamber and the second accommodating chamber (2d), and wherein the second accommodating chamber (2 d) is provided with a first light sensing element (2f) arranged toward the second light splitting prism (2e), a first arc-shaped channel (2g) is provided at the front of the first accommodation cavity, a first reflector (2h) is provided at the end of the first arc-shaped channel (2g), a second arc-shaped channel (2j) connected thereto is also provided at the end of the first arc-shaped channel (2g), a second reflector (2k) is provided at the end of the second arc-shaped channel (2j), and a second light sensing element (2m) facing the second reflector (2k) is provided on the side of the second reflector (2k).

2. The multifunctional household security device according to claim 1, characterized in that: A concave lens (6) is provided at the main port of the three-way pipe (1), and the concave lens (6) is located directly in front of the camera (3c).

3. The multifunctional household security device according to claim 1, characterized in that: A convex lens (7) is provided at a branch pipe opening of the three-way pipe (1); the convex lens (7) is circular, and the axis of the convex lens (7) is colinear with the axis of the branch pipe opening to which it is fixedly connected.

4. The multifunctional household security device according to claim 1, characterized in that: A controller is provided in the connection portion (5); the camera (3c), the infrared lamp (3a2), the first light sensing element (2f) and the second light sensing element (2m) are all electrically connected to the controller; a spectrum analysis device is provided in the control terminal; the first light sensing element (2f) and the second light sensing element (2m) are both connected to the spectrum analysis device; and the controller is connected to the control terminal.

5. The multifunctional household security device according to claim 1, characterized in that: A plurality of smoke holes (2b1) are provided on the side wall of the photosensitive shell (2b), all of the smoke holes (2b1) are in communication with the first accommodating cavity, and a light shielding plate (2b2) ​​fixedly connected to the photosensitive shell (2b) is provided on the side of each smoke hole (2b1).

6. The multifunctional household security device according to claim 1, characterized in that: The adjustment mechanism (4) comprises a first adjustment component (4a) and a second adjustment component (4b), wherein the first adjustment component (4a) is fixedly connected to the connecting portion (5), and the second adjustment component (4b) is mounted on the upper end of the first adjustment component (4a).

7. The multifunctional household security device according to claim 6, characterized in that: The first adjustment component (4a) comprises a mounting block (4a1), an articulated shaft (4a2) and a first adjustment motor (4a3); a hinge seat (4a4) is provided at one end of the mounting block (4a1); a hinge block (4a5) is provided at one end of the connecting portion (5); the articulated shaft (4a2) passes through the articulated seat (4a4) and the articulated block (4a5) in sequence to articulate the two; the first adjustment motor (4a3) is mounted on the side of the mounting block (4a1) and a driving gear (4a6) is provided at the output end thereof; a driven gear (4a7) is provided at one end of the articulated shaft (4a2) and the driven gear (4a7) is meshed with the driving gear (4a6); and a housing (4a8) for protecting the first adjustment motor (4a3) is provided on the side of the mounting block (4a1).

8. The multifunctional household security device according to claim 6, characterized in that: The second adjustment component (4b) comprises a fixed block (4b1) and a second adjustment motor (4b2), the second adjustment motor (4b2) being mounted in the fixed block (4b1) and the output end of the second adjustment motor (4b2) passing through the fixed block (4b1) and being fixedly connected to the upper end of the mounting block (4a1), the upper end of the fixed block (4b1) being provided with a connecting piece (4b3), the connecting piece (4b3) being provided with a plurality of fixing holes (4b4) distributed in a circumferential manner.

9. The multifunctional household security device according to claim 5, characterized in that: A temperature sensor (8) and a humidity sensor (9) are provided in the first accommodating chamber, and the temperature sensor (8) and the humidity sensor (9) are both electrically connected to the controller.

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