Portable gas detection alarm device based on Internet of Things

Abstract

The invention relates to the technical field of gas detection, and particularly discloses a portable gas detection alarm device based on Internet of Things, which comprises a fixed frame, the inner wall of the fixed frame is slidably connected with a detection assembly, the top of the fixed frame is fixedly connected with a movable pull ring, and the side surface of the fixed frame is fixedly connected with a fixing device. The fixing frame integrally supports the equipment, the detection assembly performs flow detection in the air, so that continuous sampling of air is facilitated, homogenization detection of gas is facilitated, detection accuracy is improved, the fixing frame is moved through the movable pull ring, and the equipment is convenient to carry. According to the portable gas detection alarm device based on the Internet of Things, the portable gas detection alarm device is simple in structure, equipment is fixed through the fixing device, so that the portable gas detection alarm device is conveniently and stably placed after being carried to a designated position, the equipment is conveniently fixed, continuous sampling of the equipment is facilitated, and the portable gas detection alarm device based on the Internet of Things achieves the purposes of being convenient to carry and easy to fix.

Description

Technical Field

[0001] This invention relates to the field of gas detection technology, specifically to a portable gas detection alarm device based on the Internet of Things. Background Technology

[0002] Gas detection and alarm devices are critical equipment for ensuring industrial production safety, environmental monitoring, and personal safety. Their development has evolved from traditional analog to digital, and then to intelligent and networked systems. Early products primarily used specific gas sensors (such as electrochemical sensors and catalytic combustion sensors) combined with simple analog or digital circuits to achieve local display of gas concentration and audible and visual alarms. Data storage capacity was limited, typically requiring manual export via USB or Bluetooth. Detection data was confined to the device itself and could not be transmitted remotely in real time. Managers could not immediately grasp on-site hazards, nor could they conduct effective remote command and dispatch. There was no linkage between devices, making regional safety early warning impossible. When one device alarmed, other nearby personnel could not be notified of the danger in a timely manner, requiring regular manual inspections and data downloads. Remote monitoring and intelligent management of equipment status (such as battery level, sensor lifespan, and malfunctions) were not possible. In-depth mining and analysis of historical data was lacking, making it difficult to predict gas leakage trends or assess long-term exposure risks. Fixed gas detection systems, on the other hand, installed fixed gas detectors in critical areas such as factories and tunnels, transmitting data to a central control room via wired or simple wireless methods.

[0003] Early products mainly used specific gas sensors, which could only monitor gas concentration at fixed points. Fixed systems could not meet the needs of modern operations for mobility and temporary deployment. Summary of the Invention

[0004] To achieve the above objectives, the present invention provides the following technical solution: a portable gas detection alarm device based on the Internet of Things, comprising a fixed frame, a detection component slidably connected to the inner wall of the fixed frame, a movable pull ring fixedly connected to the top of the fixed frame, and a fixing device fixedly connected to the side of the fixed frame. The fixed frame provides overall support for the device. The detection component performs flow detection in the air, thereby facilitating continuous air sampling, gas homogenization detection, and improved detection accuracy. The movable pull ring allows the fixed frame to be moved, facilitating device transport. The fixing device secures the device, enabling stable placement after transport to a designated location, thus facilitating continuous sampling.

[0005] The detection component includes a network module, a positioning groove on the side of the network module, a first spring fixedly connected to the top of the network module, a detection alarm module fixedly connected to the top of the positioning groove, an air inlet pipe connected to the bottom of the detection alarm module, an air inlet component connected to the bottom of the air inlet pipe, the top of the first spring fixedly connected to the top of the inner wall of the fixed frame, and the network module slidably connected to the inner wall side of the fixed frame through the positioning groove.

[0006] Preferably, the air intake assembly includes a rotating base plate, an arc-shaped air intake plate fixedly connected to the bottom of the rotating base plate, an arc-shaped air outlet pipe fixedly connected to the top of the arc-shaped air intake plate, a connecting pipe fixedly connected to the top of the inner wall of the rotating base plate, an air inlet opened on the side of the connecting pipe, a detection pipe fixedly connected to the top of the inner wall of the connecting pipe, the top of the detection pipe communicating with the top of the air intake pipe, and the top of the rotating base plate rotatably connected to the bottom of the fixed frame. During testing, the rotating base plate is manually rotated, causing the arc-shaped air intake plate to rotate, which in turn causes air to flow. The air moves and flows along the side of the arc-shaped air inlet plate and enters the interior of the air inlet. The air is detected by the detection tube and discharged along the arc-shaped air outlet pipe, which facilitates air flow sampling. During the movement of the equipment, the vibration of the network module and the detection alarm module is absorbed by the first spring, thereby reducing the impact of vibration on the equipment. The equipment is supported by the positioning slide groove, and the network module and the detection alarm module absorb vibration under the action of the first spring, thus maintaining the stability of the equipment. The design of the air inlet pipe facilitates the increase of air flow velocity, thereby facilitating the detection of air quality.

[0007] Preferably, the fixing device includes a movable rod, a second spring is sleeved and slidably connected to the side of the movable rod, a fixing component is fixedly connected to the side of the movable rod above the torque component, a fixing seat is slidably connected to the side of the fixing component, a drive gear is fixedly connected to the bottom of the movable rod, a sliding component is meshed with the side of the drive gear, a positioning component is rotatably connected to the bottom of the drive gear, the movable rod passes through the top of the fixing frame and is slidably connected to the top of the fixing frame, the top of the fixing seat is fixedly connected to the top of the fixing frame, the positioning component is slidably connected to the side of the fixing frame, and the top of the second spring is fixedly connected to the bottom of the fixing frame.

[0008] Preferably, the torque assembly includes a rotating seat, a drive bar is fixedly connected to the inner wall side of the rotating seat, a torsion spring is fixedly connected to the side of the rotating seat, the rotating seat is slidably connected to the moving rod through the drive bar, and the end of the torsion spring away from the rotating seat is fixedly connected to the side of the fixed frame.

[0009] Preferably, the fixing component includes a connecting seat, a fixing plate fixedly connected to the side of the connecting seat, a limiting groove formed on the side of the fixing plate, the side of the fixing plate slidably connected to the inner wall of the fixing seat, and the bottom of the connecting seat fixedly connected to the top of the moving rod. During fixing, the limiting groove is disengaged from the inside of the fixing seat, and under the elastic force of the second spring, the drive gear descends, thereby causing the sliding component to descend. The sliding component then causes the positioning component to descend, facilitating the fixing of the positioning component on the object surface. When the moving rod descends, under the elastic force of the torsion spring, the rotating seat rotates, causing the drive bar to rotate. The rotation of the drive bar causes the moving rod to rotate along the top of the fixing frame, and the drive bar drives the moving rod... The rotation of the moving rod drives the rotation of the drive gear, which in turn drives the positioning component, increasing its projected area and facilitating stable fixation of the equipment at the detection position. Simultaneously, during movement, the manual rotation of the limiting groove rotates the moving rod, which in turn rotates the drive bar. This drive bar, in turn, generates a torsion spring, which in turn rotates the drive gear. The drive gear then rotates the positioning component along the sliding component, thus retracting the positioning component and facilitating equipment movement. After retraction, the positioning groove and the fixed base are positioned to secure the moving rod.

[0010] Preferably, the sliding assembly includes a sliding base plate, a horizontal slide bar fixedly connected to the top of the sliding base plate, a vertical slide bar fixedly connected to the top of the sliding base plate at a position between the horizontal slide bars, the top of the sliding base plate being rotatably connected to the bottom of the drive gear, and the sliding base plate being slidably connected to the side of the fixed frame via the vertical slide bar.

[0011] Preferably, the positioning component includes a sliding rack with a transverse groove on its side. A connecting post is fixedly connected to the bottom of the sliding rack, and a suction cup is fixedly connected to the bottom of the connecting post. The sliding rack is slidably connected to the side of a transverse slide bar via the transverse groove. The side of the sliding rack meshes with the side of the drive gear. The transverse slide bar provides lateral limitation for the sliding rack, and the vertical slide bar drives the sliding base plate to slide along the side of the fixed frame, thereby facilitating the sliding base plate to rise or fall. The transverse groove on the sliding rack cooperates with the transverse slide bar, facilitating the sliding rack to slide along the side of the transverse slide bar. Simultaneously, the drive gear meshes with the side of the sliding rack, facilitating the drive gear to drive the sliding rack to move. The connecting post supports the suction cup, facilitating the fixation of the suction cup to the fixed surface.

[0012] This invention provides a portable gas detection and alarm device based on the Internet of Things (IoT). It has the following advantages:

[0013] 1. This portable gas detection alarm device based on the Internet of Things is equipped with a movable pull ring and a fixed frame that provides overall support for the device. The detection component performs flow detection in the air, which facilitates continuous air sampling and gas homogenization detection, thereby improving detection accuracy. The movable pull ring allows the fixed frame to be moved, making the device easy to carry. The device is also secured by a fixing device, which allows for stable placement after being carried to a designated location, facilitating continuous sampling.

[0014] 2. This portable gas detection and alarm device based on the Internet of Things is equipped with a rotating base plate. During detection, the base plate is manually rotated, which in turn rotates the arc-shaped air inlet plate. The rotation of the arc-shaped air inlet plate causes air to flow along its side and enter the air inlet. The air passes through the detection tube and is discharged along the arc-shaped air outlet pipe, thus facilitating air flow sampling. During the movement of the device, the vibration of the network module and the detection and alarm module is absorbed by the action of the first spring, thereby reducing the impact of vibration on the device. The device is supported by a positioning groove, and the network module and the detection and alarm module absorb vibration under the action of the first spring, thus maintaining the stability of the device. The air inlet pipe is designed to increase the air flow rate, thereby facilitating air quality detection.

[0015] 3. This portable gas detection alarm device based on the Internet of Things is equipped with a limit groove. During fixation, the limit groove is disengaged from the inside of the fixing seat. Under the elastic force of the second spring, the drive gear descends, thereby causing the sliding component to descend. The sliding component then causes the positioning component to descend, facilitating the fixing of the positioning component on the object surface. When the moving rod descends, under the elastic force of the torsion spring, it causes the rotating seat to rotate. The rotation of the rotating seat causes the drive bar to rotate, which in turn causes the moving rod to rotate along the top of the fixing frame. The drive bar then causes the moving rod to rotate, which in turn causes the drive gear to rotate, and the drive gear then causes the positioning component to rotate. The drive increases the projected area of ​​the positioning component, facilitating stable fixation of the device and ensuring it is positioned correctly for detection. During movement, the limiting groove is manually rotated, causing the moving rod to rotate, which in turn rotates the drive bar. This rotation of the drive bar, in turn, causes the torsion spring to generate elasticity, which in turn rotates the drive gear. The drive gear then rotates the positioning component along the sliding component, allowing it to be stored and easily moved. After storage, the positioning groove and the fixed base are positioned to secure the limiting groove and the moving rod.

[0016] 4. This portable gas detection alarm device based on the Internet of Things is equipped with a horizontal slide bar, which limits the horizontal movement of the sliding rack. The vertical slide bar drives the sliding base plate to slide along the side of the fixed frame, thus facilitating the raising or lowering of the sliding base plate. The horizontal groove on the sliding rack cooperates with the horizontal slide bar, allowing the sliding rack to slide along the side of the horizontal slide bar. At the same time, the drive gear meshes with the side of the sliding rack, facilitating the drive gear to drive the sliding rack to move. The connecting column supports the suction cup, thus facilitating the fixation of the suction cup to the fixed surface. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the portable gas detection and alarm device based on the Internet of Things according to the present invention;

[0018] Figure 2 This is a schematic diagram of the detection group structure of the present invention;

[0019] Figure 3 This is a schematic diagram of the intake assembly structure of the present invention;

[0020] Figure 4 This is a schematic diagram of the fixing device structure of the present invention;

[0021] Figure 5 This is a schematic diagram of the torsion component structure of the present invention;

[0022] Figure 6 This is a schematic diagram of the fixed component structure of the present invention;

[0023] Figure 7 This is a schematic diagram of the sliding component structure of the present invention;

[0024] Figure 8 This is a schematic diagram of the positioning component structure of the present invention.

[0025] In the diagram: 1. Fixed frame; 2. Detection component; 3. Moving pull ring; 4. Fixing device; 201. Networking module; 202. Positioning slide; 203. First spring; 204. Detection alarm module; 205. Air inlet pipe; 206. Air intake component; 2061. Rotating base plate; 2062. Arc-shaped air inlet plate; 2063. Arc-shaped air outlet pipe; 2064. Connecting pipe; 2065. Air inlet; 2066. Detection pipe; 401. Moving rod; 402. Second spring; 403. Torque. Components; 404, Fixed component; 405, Fixed base; 406, Drive gear; 407, Sliding component; 408, Positioning component; 4031, Rotating base; 4032, Drive bar; 4033, Torsion spring; 4041, Connecting base; 4042, Fixed plate; 4043, Limiting groove; 4071, Sliding base plate; 4072, Horizontal slide bar; 4073, Vertical slide bar; 4081, Sliding rack; 4082, Horizontal slide groove; 4083, Connecting column; 4084, Suction cup. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] For the first embodiment, please refer to... Figure 1 The present invention provides a technical solution: a portable gas detection alarm device based on the Internet of Things, including a fixed frame 1, a detection component 2 slidably connected to the inner wall of the fixed frame 1, a movable pull ring 3 fixedly connected to the top of the fixed frame 1, and a fixing device 4 fixedly connected to the side of the fixed frame 1.

[0028] The fixed frame 1 provides overall support for the equipment, and the detection component 2 performs flow detection during air movement, which facilitates continuous air sampling, gas homogenization detection, and improved detection accuracy. The fixed frame 1 is moved by the movable pull ring 3, which facilitates carrying the equipment. The equipment is fixed by the fixing device 4, which allows for stable placement after being carried to the designated location, thus facilitating continuous sampling.

[0029] For the second embodiment, please refer to... Figures 1-3Based on the first embodiment, the present invention provides a technical solution: the detection component 2 includes a network module 201, a positioning groove 202 is provided on the side of the network module 201, a first spring 203 is fixedly connected to the top of the network module 201, a detection alarm module 204 is fixedly connected to the top of the positioning groove 202, an air inlet pipe 205 is connected to the bottom of the detection alarm module 204, an air inlet component 206 is connected to the bottom of the air inlet pipe 205, the top of the first spring 203 is fixedly connected to the top of the inner wall of the fixed frame 1, and the network module 201 is slidably connected to the inner wall side of the fixed frame 1 through the positioning groove 202.

[0030] The air intake assembly 206 includes a rotating base plate 2061, an arc-shaped air intake plate 2062 fixedly connected to the bottom of the rotating base plate 2061, an arc-shaped air outlet pipe 2063 fixedly connected to the top of the arc-shaped air intake plate 2062, a connecting pipe 2064 fixedly connected to the top of the inner wall of the rotating base plate 2061, an air inlet 2065 opened on the side of the connecting pipe 2064, a detection pipe 2066 fixedly connected to the top of the inner wall of the connecting pipe 2064, the top of the detection pipe 2066 communicating with the top of the air intake pipe 205, and the top of the rotating base plate 2061 rotatably connected to the bottom of the fixed frame 1.

[0031] During testing, the rotating base plate 2061 is manually rotated. The rotation of the base plate 2061 drives the arc-shaped air inlet plate 2062 to rotate, which in turn causes air to flow along its side and into the air inlet 2065. The air is then detected by the detection tube 2066 and discharged along the arc-shaped air outlet pipe 2063, facilitating air flow sampling. During equipment movement, the vibration of the network module 201 and the detection alarm module 204 is absorbed by the first spring 203, reducing the impact of vibration on the equipment. The equipment is also supported by the positioning groove 202, which allows the network module 201 and the detection alarm module 204 to absorb vibration under the action of the first spring 203, thus maintaining equipment stability. Furthermore, the air inlet pipe 205 facilitates the increase of airflow velocity, making it easier to detect air quality.

[0032] Third embodiment, please refer to Figures 1-6Based on the second embodiment, the present invention provides a technical solution: the fixing device 4 includes a movable rod 401, a second spring 402 is sleeved and slidably connected to the side of the movable rod 401, a torque component 403 is slidably connected to the side of the movable rod 401, a fixing component 404 is fixedly connected to the movable rod 401 above the torque component 403, a fixing seat 405 is slidably connected to the side of the fixing component 404, a drive gear 406 is fixedly connected to the bottom of the movable rod 401, a sliding component 407 is meshed with the side of the drive gear 406, a positioning component 408 is rotatably connected to the bottom of the drive gear 406, the movable rod 401 passes through the top of the fixing frame 1 and is slidably connected to the top of the fixing frame 1, the top of the fixing seat 405 is fixedly connected to the top of the fixing frame 1, the positioning component 408 is slidably connected to the side of the fixing frame 1, and the top of the second spring 402 is fixedly connected to the bottom of the fixing frame 1.

[0033] The torque assembly 403 includes a rotating seat 4031, a drive bar 4032 fixedly connected to the inner side of the rotating seat 4031, and a torsion spring 4033 fixedly connected to the side of the rotating seat 4031. The rotating seat 4031 is slidably connected to the moving rod 401 through the drive bar 4032, and the end of the torsion spring 4033 away from the rotating seat 4031 is fixedly connected to the side of the fixed frame 1.

[0034] The fixing component 404 includes a connecting seat 4041, a fixing plate 4042 fixedly connected to the side of the connecting seat 4041, a limiting groove 4043 formed on the side of the fixing plate 4042, the side of the fixing plate 4042 being slidably connected to the inner wall of the fixing seat 405, and the bottom of the connecting seat 4041 being fixedly connected to the top of the moving rod 401.

[0035] During fixing, the limiting groove 4043 is disengaged from the inside of the fixing seat 405. Under the elastic force of the second spring 402, the driving gear 406 descends, thereby causing the sliding component 407 to descend. The sliding component 407 then causes the positioning component 408 to descend, facilitating the fixing of the positioning component 408 on the object surface. When the moving rod 401 descends, under the elastic force of the torsion spring 4033, the rotating seat 4031 rotates. The rotation of the rotating seat 4031 causes the drive bar 4032 to rotate. The rotation of the drive bar 4032 causes the moving rod 401 to rotate along the top of the fixing frame 1. The rotation of the drive bar 4032 causes the moving rod 401 to rotate, which in turn causes the driving gear 406 to rotate. The rotation of the driving gear 406 then drives the positioning component 408, thereby increasing... The projected area of ​​the positioning component 408 facilitates stable fixation of the equipment, making it easy to fix the equipment at the detection position. Simultaneously, during movement, the limiting groove 4043 is manually rotated, causing the moving rod 401 to rotate, which in turn causes the drive bar 4032 to rotate. The drive bar 4032 then generates elastic force in the torsion spring 4033, which in turn causes the drive gear 406 to rotate. The drive gear 406 then causes the positioning component 408 to rotate along the sliding component 407, thus storing the positioning component 408 for easy movement and carrying of the equipment. Furthermore, after storage, the positioning groove 4043 and the fixed base 405 are positioned to fix the position of the limiting groove 4043, thereby facilitating the fixation of the moving rod 401.

[0036] For the fourth embodiment, please refer to [link / reference]. Figures 1-8 Based on the third embodiment, the present invention provides a technical solution: the sliding assembly 407 includes a sliding base plate 4071, a horizontal slide bar 4072 is fixedly connected to the top of the sliding base plate 4071, a vertical slide bar 4073 is fixedly connected to the top of the sliding base plate 4071 at a position between the horizontal slide bars 4072, the top of the sliding base plate 4071 is rotatably connected to the bottom of the drive gear 406, and the sliding base plate 4071 is slidably connected to the side of the fixed frame 1 through the vertical slide bar 4073.

[0037] The positioning component 408 includes a sliding rack 4081, a transverse groove 4082 on the side of the sliding rack 4081, a connecting post 4083 fixedly connected to the bottom of the sliding rack 4081, a suction cup 4084 fixedly connected to the bottom of the connecting post 4083, the sliding rack 4081 is slidably connected to the side of the transverse slide bar 4072 through the transverse groove 4082, and the side of the sliding rack 4081 meshes with the side of the drive gear 406.

[0038] The horizontal slide bar 4072 limits the horizontal movement of the sliding rack 4081, and the vertical slide bar 4073 drives the sliding base plate 4071 to slide along the side of the fixed frame 1, thereby facilitating the raising or lowering of the sliding base plate 4071. The horizontal slide groove 4082 provided on the sliding rack 4081 cooperates with the horizontal slide bar 4072, thereby facilitating the sliding rack 4081 to slide along the side of the horizontal slide bar 4072. At the same time, the drive gear 406 meshes with the side of the sliding rack 4081, thereby facilitating the drive gear 406 to drive the sliding rack 4081 to move. The connecting column 4083 supports the suction cup 4084, thereby facilitating the fixation of the suction cup 4084 to the fixed surface.

[0039] Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in the present invention, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A portable gas detection and alarm device based on the Internet of Things, characterized in that: It includes a fixed frame (1), a detection component (2) is slidably connected to the inner wall of the fixed frame (1), a movable pull ring (3) is fixedly connected to the top of the fixed frame (1), and a fixing device (4) is fixedly connected to the side of the fixed frame (1). The detection component (2) includes a network module (201), a positioning groove (202) is provided on the side of the network module (201), a first spring (203) is fixedly connected to the top of the network module (201), a detection alarm module (204) is fixedly connected to the top of the positioning groove (202), an air inlet pipe (205) is connected to the bottom of the detection alarm module (204), an air inlet component (206) is connected to the bottom of the air inlet pipe (205), the top of the first spring (203) is fixedly connected to the top of the inner wall of the fixed frame (1), and the network module (201) is slidably connected to the inner wall side of the fixed frame (1) through the positioning groove (202).

2. The portable gas detection and alarm device based on the Internet of Things according to claim 1, characterized in that: The air intake assembly (206) includes a rotating base plate (2061), an arc-shaped air intake plate (2062) is fixedly connected to the bottom of the rotating base plate (2061), an arc-shaped air outlet pipe (2063) is fixedly connected to the top of the arc-shaped air intake plate (2062), a connecting pipe (2064) is fixedly connected to the top of the inner wall of the rotating base plate (2061), an air inlet (2065) is provided on the side of the connecting pipe (2064), a detection pipe (2066) is fixedly connected to the top of the inner wall of the connecting pipe (2064), the top of the detection pipe (2066) is connected to the top of the air intake pipe (205), and the top of the rotating base plate (2061) is rotatably connected to the bottom of the fixed frame (1).

3. The portable gas detection and alarm device based on the Internet of Things according to claim 1, characterized in that: The fixing device (4) includes a movable rod (401), a second spring (402) is sleeved and slidably connected to the side of the movable rod (401), a torque assembly (403) is slidably connected to the side of the movable rod (401), a fixing assembly (404) is fixedly connected to the movable rod (401) above the torque assembly (403), a fixing seat (405) is slidably connected to the side of the fixing assembly (404), and a drive gear (406) is fixedly connected to the bottom of the movable rod (401). The side of the drive gear (406) is engaged with a sliding component (407), the bottom of the drive gear (406) is rotatably connected with a positioning component (408), the moving rod (401) passes through the top of the fixed frame (1) and is slidably connected to the top of the fixed frame (1), the top of the fixed seat (405) is fixedly connected to the top of the fixed frame (1), the positioning component (408) is slidably connected to the side of the fixed frame (1), and the top of the second spring (402) is fixedly connected to the bottom of the fixed frame (1).

4. A portable gas detection and alarm device based on the Internet of Things according to claim 3, characterized in that: The torque assembly (403) includes a rotating seat (4031), a drive bar (4032) is fixedly connected to the inner wall side of the rotating seat (4031), a torsion spring (4033) is fixedly connected to the side of the rotating seat (4031), the rotating seat (4031) is slidably connected to the moving rod (401) through the drive bar (4032), and the end of the torsion spring (4033) away from the rotating seat (4031) is fixedly connected to the side of the fixed frame (1).

5. A portable gas detection and alarm device based on the Internet of Things according to claim 3, characterized in that: The fixing component (404) includes a connecting seat (4041), a fixing plate (4042) is fixedly connected to the side of the connecting seat (4041), a limiting groove (4043) is opened on the side of the fixing plate (4042), the side of the fixing plate (4042) is slidably connected to the inner wall of the fixing seat (405), and the bottom of the connecting seat (4041) is fixedly connected to the top of the moving rod (401).

6. A portable gas detection and alarm device based on the Internet of Things according to claim 3, characterized in that: The sliding assembly (407) includes a sliding base plate (4071), a horizontal slide bar (4072) is fixedly connected to the top of the sliding base plate (4071), and a vertical slide bar (4073) is fixedly connected to the top of the sliding base plate (4071) at a position between the horizontal slide bars (4072).

7. A portable gas detection and alarm device based on the Internet of Things according to claim 6, characterized in that: The top of the sliding base plate (4071) is rotatably connected to the bottom of the drive gear (406), and the sliding base plate (4071) is slidably connected to the side of the fixed frame (1) through a vertical slide bar (4073).

8. A portable gas detection and alarm device based on the Internet of Things according to claim 3, characterized in that: The positioning component (408) includes a sliding rack (4081), a transverse groove (4082) is provided on the side of the sliding rack (4081), a connecting post (4083) is fixedly connected to the bottom of the sliding rack (4081), and a suction cup (4084) is fixedly connected to the bottom of the connecting post (4083).

9. A portable gas detection alarm device based on the Internet of Things according to claim 8, characterized in that: The sliding rack (4081) is slidably connected to the side of the transverse slide bar (4072) through the transverse slide groove (4082), and the side of the sliding rack (4081) meshes with the side of the drive gear (406).

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