An indoor gas environment detection device with self-checking and self-cleaning functions

Abstract

The application discloses an indoor gas environment detection device with self-checking and self-cleaning functions, which comprises a base, a combined assembly, a gas control assembly, a gas storage bottle, a base, a detection device main body and a central control device. The combined assembly is fixedly connected to the top of the base and is used for supporting. The gas control assembly, the gas storage bottle and the central control device are fixedly connected in the combined assembly, and the gas control assembly is used for fixing the gas storage bottle and controlling the opening and closing of the gas storage bottle. The central control device is connected to and controls the telescopic assembly, the gas control assembly and the detection device main body respectively. The base is fixedly connected to the top of the combined assembly and is rotationally connected with the detection device main body. The detection device main body comprises an air inlet cover plate and a cleaning assembly. The cleaning assembly impacts the air inlet cover plate with the rotation of the detection device main body, so that the self-cleaning is realized. The application has the self-checking and self-cleaning functions, can reduce the inaccuracy of detection results caused by multiple factors and ensures the excellent use effect of the device.

Description

Technical Field

[0001] This invention relates to the field of air detection technology, and in particular to an indoor gas environment detection device with self-testing and self-cleaning functions. Background Technology

[0002] A gas detector is an instrument used to detect the concentration of leaked gases. These include portable gas detectors, handheld gas detectors, stationary gas detectors, and online gas detectors. They primarily utilize gas sensors to detect the types of gases present in the environment; gas sensors are used to detect the composition and concentration of gases.

[0003] In existing technologies, gas detection devices can be broadly classified into two types based on their usage: one is a portable handheld device that moves with the user to various testing locations, but the testing time for this type of device is usually short; the other is a detection device that is fixedly installed in a certain indoor location. However, since the location of this device is fixed, the structure it tests is not representative of the overall indoor space. For example, if the detection device is placed on a cabinet, the gas being detected may contain VOCs emitted from the cabinet. Therefore, this device also cannot reliably detect the air in the entire space. Summary of the Invention

[0004] To address the shortcomings of existing technologies, such as limitations in the use of detection devices and low reliability of detection results, this invention proposes the following technical solution:

[0005] An indoor gas environment detection device with self-testing and self-cleaning functions includes: a base, a combination component, a gas control component, a gas storage bottle, a base, a detection device body, and a central control device;

[0006] The assembly is fixedly connected to the top of the base for support; the gas control component and the gas storage bottle are fixedly connected inside the assembly, and the gas control component is used to fix the gas storage bottle and control the opening and closing of the gas storage bottle; the central control device is connected to and controls the gas control component and the main body of the detection device respectively; the base is fixedly connected to the top of the assembly and rotatably connected to the main body of the detection device.

[0007] The main body of the testing equipment includes: a testing cylinder, an air inlet hood, a cleaning component, a flow guide fan, an air detection module, and an air outlet hood; the air inlet hood, the cleaning component, the flow guide fan, the air detection module, and the air outlet hood are sequentially fixed inside the testing cylinder, and the air inlet hood and the air outlet hood are respectively fixed to both ends of the testing cylinder; the air inlet end of the main body of the testing equipment is located above the air outlet of the gas storage bottle;

[0008] The cleaning assembly includes: a moving ring, an impact rod, and two ratchet mechanisms fixed on the moving ring and located on both axially symmetrical sides of the detection cylinder; the ratchet mechanism includes a rotating wheel, a force-bearing rod, a connecting frame, an elastic structure, and a protective shell; the protective shell is fixed inside the detection cylinder near the air inlet hood, and the rotating wheel, force-bearing rod, connecting frame, and elastic structure are arranged axially inside the protective shell;

[0009] The rotating wheel is a wheel-shaped structure with multiple toothed surfaces on its outer edge. The rotating wheel and the base are connected in one direction via a ratchet. One end of the force-bearing rod abuts against the root of the teeth of the rotating wheel, and the other end of the force-bearing rod is fixedly connected to one end of the connecting frame. The other end of the connecting frame is provided with an elastic structure, and the other end of the elastic structure is fixedly connected to the protective shell. The ratchet mechanism is fixedly connected to the moving ring via the connecting frame. Multiple impact rods are fixedly connected in parallel to one side of the air intake shroud facing the moving ring.

[0010] Furthermore, the base includes: a support platform, a support assembly, and a telescopic assembly; the support assembly is rotatably fixed to the lower part of the support platform, and the telescopic assembly is fixed to the upper part of the support platform;

[0011] The support assembly is a triangular support structure, including three rotating cylinders and three support legs; each rotating cylinder has a support leg installed on its outer wall, and every two adjacent rotating cylinders are rotatably connected. The distance from the projection center point of each rotating cylinder to the support point on each support leg is different, so that the support assembly does not interfere with each support leg when it is folded up, making it easy to carry.

[0012] Further, the telescopic assembly includes: a fixed sleeve, a movable sleeve, a threaded block, a screw, a first gear, a second gear, and a drive motor; the fixed sleeve is fixedly connected to the top of the support platform, the movable sleeve is movably sleeved on the outer side of the outer wall of the fixed sleeve, the threaded block is fixedly connected to the upper part of the inner cavity of the fixed sleeve, and the screw is threadedly connected to and passes through the threaded block; the drive motor is inserted into and fixedly connected to the outer wall of the movable sleeve, the second gear is locked to the output shaft of the drive motor through a coupling, the first gear is fixedly connected to the top of the screw, and the first gear meshes with the second gear.

[0013] Furthermore, the assembly includes a connecting seat and a connecting plate; the connecting seat is fixedly connected to the top of the base, the connecting plate is fixedly connected between the connecting seat and the base, and a through hole is formed in the upper part of the connecting plate;

[0014] The gas control assembly includes: a snap-fit ​​block, a pressing plate, and a second push rod; there are two snap-fit ​​blocks, one end of each snap-fit ​​block is fixedly connected to the upper and lower ends of the gas storage bottle, and the other end is fixedly connected to the upper and lower ends of the connecting plate; the middle part of the pressing plate is rotatably connected to the end face of the upper snap-fit ​​block, one end of the pressing plate extends to the opening of the gas storage bottle, and an arc-shaped protrusion is provided between this end and the gas storage bottle; the other end of the pressing plate passes through a through hole in the connecting plate and is rotatably connected to the telescopic end of the second push rod; the fixed end of the second push rod is fixedly connected to the lower surface of the base.

[0015] Furthermore, it also includes a first push rod, the fixed end of which is fixedly connected to the base, and the telescopic end of which is fixedly connected to the outer wall of the outlet end of the main body of the detection equipment; the base includes connecting rods, one end of each of the two connecting rods is connected to the rotating wheel via a ratchet, and the other end of each connecting rod is rotatably connected to the base.

[0016] Furthermore, the central control device is connected to and controls the first push rod.

[0017] Furthermore, the base and the assembly, the components within the assembly, the gas control assembly and the assembly, and the gas control assembly and the gas storage bottle are all detachably connected.

[0018] The beneficial effects of this invention are:

[0019] (1) This invention achieves the function of periodically releasing standard gas in gas storage bottle through the cooperation between central control equipment and gas control component. After release, gas can enter the main body of detection equipment. By monitoring the gas and the value change of the main body of detection equipment, it is determined whether the current monitoring equipment is in a reliable working state. If the detection equipment cannot or can only weakly detect gas after gas release, it may be that the air detection module is faulty or the air intake channel is blocked. Therefore, this device can provide a self-test function for detection in unattended state, avoid inaccurate detection results caused by multiple factors, and ensure the use effect of detection equipment.

[0020] (2) In addition to the self-test function, the present invention also provides a cleaning component that can clean the air intake channel. When the self-test of the device is in an unreliable detection state, the cleaning component can continue to be triggered to clean the dust in the air intake channel by impact, so as to ensure the airflow effect of the channel. Therefore, after the device finds a problem in the self-test, it can deal with the possible problems in a timely manner, so that the problem can be solved automatically and effectively. During the use of the detection equipment, the accurate detection effect of the data is effectively guaranteed.

[0021] (3) The support component used in this invention is a triangular support structure. Combined with telescopic components and modular components, it can place the detection equipment in a reasonable spatial position and avoid interference from surrounding environmental factors. At the same time, each component of this device is independently and movable, making it easy to store and carry, which can improve the convenience of use for staff. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the indoor gas environment detection device provided in this embodiment from a first angle.

[0023] Figure 2 This is a second-angle structural schematic diagram of the indoor gas environment detection device provided in this embodiment;

[0024] Figure 3 This is a structural schematic diagram of the telescopic component and the support component provided in this embodiment;

[0025] Figure 4 This is a schematic diagram of the structure of the support components and support platform provided in this embodiment;

[0026] Figure 5 for Figure 1 Enlarged view of point A in the image;

[0027] Figure 6 for Figure 2 Enlarged view of point B in the image;

[0028] Figure 7 This is a schematic diagram of the gas storage bottle and its protrusions provided in this embodiment;

[0029] Figure 8 This is a structural schematic diagram of the main body of the detection device provided in this embodiment from a first angle;

[0030] Figure 9 This is a structural schematic diagram of the main body of the detection device provided in this embodiment from a second angle;

[0031] Figure 10 This is a schematic diagram of the rotating wheel provided in this embodiment;

[0032] Figure 11 This is a schematic diagram of the main body of the detection device provided in this embodiment when it is in a self-cleaning state.

[0033] In the diagram, the components are: support platform 1, support assembly 2, rotating cylinder 21, support leg 22, telescopic assembly 3, fixed sleeve 31, moving sleeve 32, threaded block 33, screw 34, first gear 35, second gear 36, drive motor 37, first push rod 4, combination assembly 5, connecting seat 51, connecting plate 52, support rod 53, gas control assembly 6, snap-fit ​​block 61, pressing plate 62, second push rod 63, gas storage bottle 7, base 8, connecting rod 81, main body of detection equipment 9, detection cylinder 91, air inlet cover 92, outer cover 921, elastic filter cover 922, cleaning assembly 93, rotating wheel 931, force rod 932, connecting frame 933, moving ring 934, impact rod 935, elastic structure 936, protective shell 937, guide fan 94, air detection module 95, turbulence ring 96, air outlet cover 97, and central control equipment 10. Detailed Implementation

[0034] The present invention will be described in detail below with reference to the accompanying drawings and preferred embodiments. The objectives and effects of the present invention will become clearer as a result. The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0035] like Figure 1 , Figure 2 As shown, the indoor gas environment detection device of the present invention includes: a support platform 1, a support component 2, a telescopic component 3, a first push rod 4, a combination component 5, a gas control component 6, a gas storage bottle 7, a base 8, a detection equipment body 9, and a central control device 10.

[0036] Support assembly 2 is rotatably mounted on the lower surface of support platform 1. Telescopic assembly 3 is fixedly connected to the upper surface of support platform 1. A combined assembly 5 is detachably mounted on the top of telescopic assembly 3. Combined assembly 5 is a support structure, and a gas control assembly 6 is detachably fixedly connected inside. The gas control assembly 6 fixes the gas storage bottle 7 and controls the opening and closing of the gas storage bottle 7. A base 8 is detachably fixedly connected above combined assembly 5. The fixed end of the first push rod 4 is fixedly connected to the upper surface of base 8, and the telescopic end of the first push rod 4 is fixedly connected to the outer wall of the detection device body 9 near the outlet end. The outer wall of the detection device body 9 near the inlet end is rotatably connected to base 8, and the inlet end of the detection device body 9 is located above the gas outlet position of gas storage bottle 7. A central control device 10 is fixedly connected to combined assembly 5 and connects to and controls telescopic assembly 3, first push rod 4, gas control assembly 6, and detection device body 9.

[0037] The assembly 5 includes a connecting seat 51, a connecting plate 52, and support rods 53. The connecting seat 51 is fixed to the top of the telescopic assembly 3 and has a hollow structure to reduce its weight. The connecting plate 52 is fixed between the connecting seat 51 and the base 8, and has a rectangular hole at its top. Both support rods 53 are fixed between the base 8 and the telescopic assembly 3, and the two support rods 53 and the connecting plate 52 are located on both sides of the gas storage bottle 7. All parts of the assembly 5 are detachably connected, providing the invention with the function of assembly and disassembly. When the whole device is moved, it can be independently disassembled into multiple structures for easy carrying.

[0038] like Figure 3 As shown, the telescopic assembly 3 includes: a fixed sleeve 31, a movable sleeve 32, a threaded block 33, a screw 34, a first gear 35, a second gear 36, and a drive motor 37. The fixed sleeve 31 is fixedly connected to the top center of the support platform 1. The movable sleeve 32 is movably sleeved on the outer side of the outer wall of the fixed sleeve 31, and a sealing cap is fixedly connected to the top of the movable sleeve 32. The threaded block 33 is fixedly installed in the upper part of the inner cavity of the fixed sleeve 31. The screw 34 is located in the inner cavity of the fixed sleeve 31, and the screw 34 is threadedly connected to and passes through the threaded block 33. The drive motor 37 is inserted into and fixedly connected to the outer wall of the movable sleeve 32. The first gear 35 is fixedly installed on the top of the screw 34. The second gear 36 is locked to the output of the drive motor 37 through a coupling, and the first gear 35 and the second gear 36 mesh.

[0039] A portion of the upper wall of the fixed sleeve 31 is cut off along the circumferential direction to allow the drive motor 37 and its driven second gear 36 to extend into the center of the fixed sleeve 31, thus preventing interference between the drive motor 37 and the fixed sleeve 31 when the telescopic assembly 3 moves axially. The uncut portion of the upper wall of the fixed sleeve 31 ensures that the movable sleeve 32 remains vertical even at higher axial lifting distances, reducing swaying caused by insufficient constraint.

[0040] When the drive motor 4 operates under the control of the central control device 10, it drives the second gear 36 to rotate, and the screw 34 rotates under the action of the two gears. The screw 34 and the threaded block 33 rotate through the threaded engagement, which drives the moving sleeve 32 to move axially, realizing the axial lifting effect of the telescopic component 3, so that the main body 9 of the detection equipment can be in different spatial positions, thereby obtaining more comprehensive detection results.

[0041] like Figure 3 , Figure 4As shown, the support assembly 2 is a triangular support structure, comprising three interlocking rotating cylinders 21 and support legs 22. Each rotating cylinder 21 has a support leg 22 mounted on its outer wall. Every two adjacent rotating cylinders 21 are rotatably connected, and the distance from the projection center point of each rotating cylinder 21 to the support point on each support leg 22 is different. This design ensures that when the support assembly 2 is folded up, rotating the rotating cylinders 21 so that the three support legs 22 are in the same plane, there is no interference between the support legs 22, making it easy to carry.

[0042] By combining the support component 2 and the telescopic component 3, the device of the present invention can be placed in a reasonable spatial position to avoid interference from the surrounding environmental factors.

[0043] like Figure 5-7 As shown, the gas control assembly 6 includes: a snap-fit ​​block 61, a pressing plate 62, and a second push rod 63. There are two snap-fit ​​blocks 61, fixedly connected to the upper and lower ends of the connecting plate 52 respectively, and the sizes of the two snap-fit ​​blocks 61 are adapted to the upper and lower ends of the gas storage bottle 7, for fixing the gas storage bottle 7. The middle part of the pressing plate 62 is rotatably connected to the end face of the upper snap-fit ​​block 61 via a hinge. One end of the pressing plate 62 extends to the opening of the gas storage bottle 7, and an arc-shaped protrusion is provided between this end and the gas storage bottle 7; the other end of the pressing plate 62 passes through a rectangular hole on the connecting plate 52 and is rotatably connected to the telescopic end of the second push rod 63; the fixed end of the second push rod 63 is fixedly connected to the lower surface of the base 8.

[0044] The gas storage bottle 7 is switched on and off by the cooperation of the second push rod 63 and the central control device 10. Under the control of the central control device 10, the second push rod 63 extends, pushing the end of the pressing plate 62 connected to the second push rod 63 downwards. As the pressing plate 62 rotates around its center, the end of the pressing plate 62 connected to the gas storage bottle 7 lifts, triggering the gas valve on the top opening of the gas storage bottle 7 to open. At this time, the gas in the gas storage bottle 7 is transported to the air inlet side of the detection device body 9 through the extended pipe at the bottle mouth. Correspondingly, under the control of the central control device 10, the second push rod 63 retracts, causing the end of the pressing plate 62 connected to the second push rod 63 to lift, and the end of the pressing plate 62 connected to the gas storage bottle 7 to press down, causing the gas valve on the top opening of the gas storage bottle 7 to close.

[0045] like Figure 8 , Figure 9As shown, the main body 9 of the testing equipment includes: a testing cylinder 91, an air inlet shroud 92, a cleaning component 93, a flow guide fan 94, an air detection module 95, a baffle ring 96, and an air outlet shroud 97. The testing cylinder 91 is a thin-walled cylinder with the air inlet shroud 92 installed at one end and the air outlet shroud 97 installed at the other end. Inside the testing cylinder 91, from the air inlet end to the air outlet end, the air inlet shroud 92, the cleaning component 93, the flow guide fan 94, the air detection module 95, the baffle ring 96, and the air outlet shroud 97 are sequentially fixed. The air inlet shroud 92 includes an outer cover 921 and an elastic filter cover 922. The outer cover 921 is detachably connected to one end of the testing cylinder 91, and the elastic filter cover 922 is movably disposed inside the outer cover 921.

[0046] Ambient air enters the detection cylinder 91 from the intake shroud 92 through the flow guide fan 94. The airflow within the detection cylinder 91 makes full contact with the air detection module 95, and the current air conditions in the space can be obtained through numerical detection by the air detection module 95. The turbulence ring 96 is used to stabilize the internal flow field of the detection equipment body 9, reduce eddy current generation, and ensure reliable operation.

[0047] like Figure 9 , Figure 10 As shown, the cleaning assembly 93 includes a moving ring 934, an impact rod 935, and two ratchet mechanisms fixed to the moving ring 934 and located on both circumferentially symmetrical sides of the detection cylinder 91. Each ratchet mechanism includes a rotating wheel 931, a force-bearing rod 932, a connecting frame 933, an elastic structure 936, and a protective shell 937. The protective shell 937 is fixedly connected inside the detection cylinder 91 near the air inlet. The rotating wheel 931, force-bearing rod 932, connecting frame 933, and elastic structure 936 are all located within the protective shell 937 and arranged sequentially along the axial direction. The outer edge of the rotating wheel 931 has a toothed surface at 90-degree intervals. The toothed surface does not interfere with the inner wall of the detection cylinder 91. The center of the rotating wheel 931 protrudes and penetrates the outer wall of the detection cylinder 91 (i.e.,...). Figure 8 The cleaning component 93 (pointed to the center) has a central protrusion that is connected to the rotating wheel 931 via a ratchet, allowing the rotating wheel 931 to rotate only in one direction. One end of the force-bearing rod 932 abuts against the root of the tooth of the rotating wheel 931, and the other end of the force-bearing rod 932 is fixedly connected to one end of the connecting frame 933. The other end of the connecting frame 933 is provided with an elastic structure 936, which in this embodiment is a spring, and the other end of the elastic structure 936 is fixed inside the protective shell 937. The ratchet mechanism is fixedly connected to the moving ring 934 via the connecting frame 933. Multiple impact rods 935 are fixedly connected in parallel on one side of the air intake shroud 92 facing the moving ring 934, and the positions of the impact rods 935 and the edge of the elastic filter cover 922 are all corresponding.

[0048] like Figure 11The diagram shows the device in its self-cleaning state. The rotatable connection between the main body 9 and the base 8 is achieved via connecting rods 81. One end of each connecting rod 81 is fixed to a protruding structure penetrating the outer wall of the rotating wheel 931, and the other end is rotatably connected to the base 8. This rotatable connection between the main body 9 and the base 8, in conjunction with the first push rod 4, allows for the switching between normal operation and self-cleaning states of the main body 9. When the main body 9 is in self-cleaning state, the air inlet faces downwards.

[0049] The device of this invention can realize the function of periodic self-inspection and self-cleaning of the main body 9 of the detection equipment. When an abnormality is found during the self-inspection, the self-cleaning function is performed to clean the dust in the air intake channel by impact, so as to ensure the airflow effect in the channel and ensure the reliability of long-term detection results without manual intervention.

[0050] The self-testing function of the device of the present invention is achieved through the cooperation of the gas control component 6, the gas storage bottle 7, the central control device 10, and the detection device body 9. Under the control of the central control device 10, the gas control component 6 opens the gas valve of the gas storage bottle 7, and the gas storage bottle 7 sprays out standard gas. This standard gas enters the detection device body 9. The air detection module 95 in the detection device body 9 performs gas detection under the control of the central control device 10. If the gas value detected by the air detection module 95 is similar to the relevant value of the sprayed standard gas, the current detection result is within the normal range, and the central control device 10 does not alarm the user. If the gas value detected by the air detection module 95 is abnormal, such as not being able to detect gas or only being able to detect gas weakly, it is determined that the air detection module 95 is malfunctioning or the air intake channel is blocked, and the central control device 10 executes a self-cleaning procedure.

[0051] The self-cleaning function of the device of the present invention is achieved through the cooperation of the central control device 10, the first push rod 4, and the cleaning component 93. The central control device 10 drives the telescopic end of the first push rod 4 to extend, pushing the main body 9 of the detection device to rotate as a whole until the detection cylinder 91 is in the position shown. Figure 11The vertical position is shown. During the rotation of the detection cylinder 91 in the current direction, the rotating wheel 931 does not rotate synchronously with the detection cylinder 91. As the detection cylinder 91 rotates, the force rod 932 moves axially along the toothed surface of the rotating wheel 931 under the action of the spring. When the force rod 932 reaches the maximum radius of the toothed surface, it disengages from the toothed surface. Under the reverse elastic thrust of the spring, it is instantly pushed to abut against the root of the tooth on the next toothed surface, thereby driving the connecting frame 933, the moving ring 934, and the impact rod 935 to move axially. The impact rod 935 will impact the elastic filter cover 922, and the dust on the elastic filter cover 922 will be shaken and fall vertically. After the self-cleaning is completed, the first push rod 4 retracts under the control of the central control device 10, driving the detection cylinder 91 back to the initial position. At the same time, the force rod 932 drives the rotating wheel 931 to reset, preparing for the subsequent cleaning action.

[0052] It will be understood by those skilled in the art that the above descriptions are merely preferred examples of the invention and are not intended to limit the invention. Although the invention has been described in detail with reference to the foregoing examples, those skilled in the art can still modify the technical solutions described in the foregoing examples or make equivalent substitutions for some of the technical features. All modifications and equivalent substitutions made within the spirit and principles of the invention should be included within the scope of protection of the invention.

Claims

1. An indoor gas environment detection device with self-testing and self-cleaning functions, characterized in that, include: Base, assembly components, gas control components, gas storage cylinders, base, main body of testing equipment, central control equipment; The assembly is fixedly connected to the top of the base for support; the gas control component and the gas storage bottle are fixedly connected inside the assembly, and the gas control component is used to fix the gas storage bottle and control the opening and closing of the gas storage bottle; the central control device is connected to and controls the gas control component and the main body of the detection device respectively. The base is fixed to the top of the assembly and rotatably connected to the main body of the detection device; The main body of the testing equipment includes: a testing cylinder, an air inlet hood, a cleaning component, a flow guide fan, an air detection module, and an air outlet hood; the air inlet hood, the cleaning component, the flow guide fan, the air detection module, and the air outlet hood are sequentially fixed inside the testing cylinder, and the air inlet hood and the air outlet hood are respectively fixed to both ends of the testing cylinder; the air inlet end of the main body of the testing equipment is located above the air outlet of the gas storage bottle; The cleaning assembly includes: a moving ring, an impact rod, and two ratchet mechanisms fixed on the moving ring and located on both axially symmetrical sides of the detection cylinder; the ratchet mechanism includes a rotating wheel, a force-bearing rod, a connecting frame, an elastic structure, and a protective shell; the protective shell is fixed inside the detection cylinder near the air inlet hood, and the rotating wheel, force-bearing rod, connecting frame, and elastic structure are arranged axially inside the protective shell; The rotating wheel is a wheel-shaped structure with multiple toothed surfaces on its outer edge. The rotating wheel and the base are connected in one direction via a ratchet. One end of the force-bearing rod abuts against the root of the teeth of the rotating wheel, and the other end of the force-bearing rod is fixedly connected to one end of the connecting frame. The other end of the connecting frame is provided with an elastic structure, and the other end of the elastic structure is fixedly connected to the protective shell. The ratchet mechanism is fixedly connected to the moving ring via the connecting frame. Multiple impact rods are fixedly connected in parallel on one side of the air intake shroud facing the moving ring. The indoor gas environment detection device also includes a first push rod, the fixed end of which is fixedly connected to the base, and the telescopic end of which is fixedly connected to the outer wall of the outlet end of the main body of the detection device; the base includes connecting rods, one end of each of the two connecting rods is connected to the rotating wheel via a ratchet, and the other end of each connecting rod is rotatably connected to the base.

2. The indoor gas environment detection device with self-testing and self-cleaning functions according to claim 1, characterized in that, The base includes: a support platform, a support assembly, and a telescopic assembly; the support assembly is rotatably fixed to the lower part of the support platform, and the telescopic assembly is fixed to the upper part of the support platform. The support assembly is a triangular support structure, including three rotating cylinders and three support legs; each rotating cylinder has a support leg installed on its outer wall, and every two adjacent rotating cylinders are rotatably connected. The distance from the projection center point of each rotating cylinder to the support point on each support leg is different, so that the support assembly does not interfere with each support leg when it is folded up, making it easy to carry.

3. The indoor gas environment detection device with self-testing and self-cleaning functions according to claim 2, characterized in that, The telescopic assembly includes: a fixed sleeve, a movable sleeve, a threaded block, a screw, a first gear, a second gear, and a drive motor; the fixed sleeve is fixedly connected to the top of the support platform, the movable sleeve is movably sleeved on the outer side of the outer wall of the fixed sleeve, the threaded block is fixedly connected to the upper part of the inner cavity of the fixed sleeve, and the screw is threadedly connected to and passes through the threaded block; the drive motor is inserted into and fixedly connected to the outer wall of the movable sleeve, the second gear is locked to the output shaft of the drive motor through a coupling, the first gear is fixedly connected to the top of the screw, and the first gear meshes with the second gear.

4. The indoor gas environment detection device with self-testing and self-cleaning functions according to claim 1, characterized in that, The assembly includes a connecting seat and a connecting plate; the connecting seat is fixedly connected to the top of the base, the connecting plate is fixedly connected between the connecting seat and the base, and a through hole is formed in the upper part of the connecting plate; The gas control assembly includes: a snap-fit ​​block, a pressing plate, and a second push rod; there are two snap-fit ​​blocks, one end of each snap-fit ​​block is fixedly connected to the upper and lower ends of the gas storage bottle, and the other end is fixedly connected to the upper and lower ends of the connecting plate; the middle part of the pressing plate is rotatably connected to the end face of the upper snap-fit ​​block, one end of the pressing plate extends to the opening of the gas storage bottle, and an arc-shaped protrusion is provided between this end and the gas storage bottle; the other end of the pressing plate passes through a through hole in the connecting plate and is rotatably connected to the telescopic end of the second push rod; the fixed end of the second push rod is fixedly connected to the lower surface of the base.

5. The indoor gas environment detection device with self-testing and self-cleaning functions according to claim 4, characterized in that, The central control device is connected to and controls the first push rod.

6. The indoor gas environment detection device with self-testing and self-cleaning functions according to claim 1, characterized in that, The base and the assembly, the components within the assembly, the gas control assembly and the assembly, and the gas control assembly and the gas storage bottle are all detachably connected.

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