A device for detecting formaldehyde content in indoor decoration air

Abstract

The present invention discloses a device for detecting formaldehyde content in indoor decoration air, comprising: a detection cylinder, the top of which is connected to an exhaust pipe, and the inside of which is fixedly connected to a formaldehyde detector; a support frame, the bottom of which is fixedly connected to a universal roller; a filter screen, which has a hemispherical structure; an exhaust device, which quickly extracts indoor gas to the formaldehyde detector through the exhaust device; a cleaning device, which cleans impurities adhering to the outside of the filter screen through the cleaning device; an adsorption device, which adsorbs the detected gas before discharging it; the bottom of the detection cylinder is fixedly connected to the top of the filter screen, and the present invention relates to the technical field of formaldehyde content detection. The device for detecting formaldehyde content in indoor decoration air quickly extracts indoor air and directly transports it to the detection head, so that the gas containing formaldehyde can be detected more quickly by the detection head.

Description

Technical Field

[0001] The invention relates to the technical field of formaldehyde content detection, in particular to a device for detecting formaldehyde content in indoor decoration air. Background Art

[0002] At present, in interior decoration, newly renovated houses generally need to be vacant for a period of time before they can be moved in, because harmful substances such as formaldehyde contained in decoration materials will endanger the health of residents. Now people generally discharge formaldehyde in newly renovated houses by ventilating the room, eliminating formaldehyde that harms the human body to the greatest extent, and also use plants to absorb indoor formaldehyde. Therefore, before moving, people generally place plants in newly renovated houses, so that plants can absorb formaldehyde and produce fresh air. Although the above methods can reduce the formaldehyde concentration in indoor air, people cannot know the value of formaldehyde concentration in indoor air, which is inconvenient to move in. Therefore, people generally test the indoor formaldehyde content before moving in. If the indoor formaldehyde content is lower than the preset value, they can move in.

[0003] When existing devices perform formaldehyde detection in relatively open areas indoors, they are unable to quickly extract indoor air and directly transport it to the detection head. Gas containing formaldehyde cannot be detected by the detection head in a large space, resulting in low detection efficiency. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides: a device for detecting formaldehyde content in indoor decoration air, comprising:

[0005] A detection cylinder, the top of which is connected to an exhaust pipe, and the interior of which is fixedly connected to a formaldehyde detector;

[0006] A support frame, wherein a universal roller is fixedly connected to the bottom of the support frame;

[0007] A filter screen having a hemispherical structure;

[0008] A suction device is used to quickly extract indoor gas to the formaldehyde detector;

[0009] A cleaning device is used to clean impurities adhering to the outside of the filter screen;

[0010] An adsorption device, which adsorbs the detected gas before discharging it;

[0011] The bottom of the detection cylinder is fixedly connected to the top of the filter screen, the bottom of the detection cylinder is set to an open shape, the end of the support frame away from the universal roller is fixedly connected to the outer wall of the detection cylinder, the support frame is provided with multiple groups, the exhaust pipe is provided with two groups and is symmetrically distributed on both sides of the detection cylinder, the outer wall of the air extraction device is fixedly connected to the inner wall of the detection cylinder, the cleaning device is arranged at the bottom of the filter screen and is rotatably connected to the bottom of the filter screen, and one side of the adsorption device is connected to one end of the exhaust pipe;

[0012] Wherein, the air extraction device comprises:

[0013] An exhaust fan blade, the top of which is fixedly connected to a drive motor;

[0014] A positioning plate having a vent on the top thereof, through which gas passes and is blown to the detection head of the formaldehyde detector. The formaldehyde detector can then be used to detect the formaldehyde content in the delivered gas. The indoor air can be quickly extracted and directly delivered to the detection head, so that the gas containing formaldehyde can be detected more quickly by the detection head. A connecting frame is fixedly connected to the outer side of the positioning plate.

[0015] Preferably, the output end of the driving motor is fixedly connected to the top of the exhaust fan blade, the ventilation openings are provided in multiple groups and are evenly distributed on the top of the positioning plate, and the connecting frames are provided in multiple groups and are evenly distributed on the outside of the positioning plate.

[0016] Preferably, one end of the connecting frame away from the positioning plate is fixedly connected to the inner wall of the detection cylinder, and the bottom of the driving motor passes through the positioning plate and is fixedly connected to the positioning plate.

[0017] Preferably, the cleaning device includes a differential, the output end of the differential is fixedly connected to a rotating column, the bottom of the rotating column is fixedly connected to a rotating disk, the outer side of the rotating disk is fixedly connected to an arc-shaped limit frame, both ends of the inner wall of the arc-shaped limit frame are fixedly connected to an electric slide rail, the inner wall of the arc-shaped limit frame is fixedly connected to a comb scraper, the interior of the electric slide rail is slidably connected to an L-shaped push plate through an electric slider, one side of the L-shaped push plate is fixedly connected to an arc plate through a compression spring, and the arc plate is fixedly connected to a arc brush plate on a side close to the arc limit frame, the electric slide rail drives the L-shaped push plate to move through the internal electric slider, and the L-shaped push plate drives the arc plate to move through the compression spring, and the arc plate drives the arc brush plate to move along the outer wall of the filter screen and clean the outer wall of the filter screen, brushing off impurities attached to one side of the outer wall of the filter screen, avoiding impurities accumulation and clogging the filter screen, thereby improving the filtration efficiency of the filter screen, thereby avoiding impurities affecting the detection results, and improving the accuracy of formaldehyde detection.

[0018] Preferably, the input end of the differential is fixedly connected to the bottom of the exhaust fan blade, the outer side of the differential is fixedly connected to the inner wall of the filter through a bracket, and the bottom of the rotating column penetrates the bottom of the filter and is rotatably connected to the bottom of the filter through a sealed bearing.

[0019] Preferably, the comb-tooth scraper is provided with multiple groups and is evenly distributed on the inner wall of the arc-shaped limit frame, and the electric slider inside the electric slide rail drives the L-shaped push plate to move, so that the L-shaped push plate drives the arc plate to gradually move away from the filter screen, and the arc plate drives the arc brush plate to move away from one side of the filter screen through the comb-tooth scraper, and the comb-tooth scraper scrapes and cleans the brush head on the passing arc brush plate, and scrapes off the impurities adhered to the brush head; when the brush head on the arc brush plate is completely removed from the comb-tooth scraper, the brush head on the arc brush plate is driven by the electric slide rail to be reinserted into the comb-tooth scraper, and the cleaned arc brush plate can be used to clean the filter screen, avoiding the brush head on the arc brush plate from adhering to a large amount of impurities and affecting the cleaning efficiency; the L-shaped push plate is provided with two groups and is symmetrically distributed at both ends of the arc plate, the arc limit frame is provided with multiple groups and is evenly distributed on the outside of the turntable, and the arc limit frame is provided on the outside of the filter screen.

[0020] Preferably, the adsorption device includes an adsorption tube, which is provided with two groups. The two groups of adsorption tubes are connected by an arc-shaped connecting tube, the top of the adsorption tube is connected to an extension frame, the top of the extension frame is provided with an arc-shaped slide, the top of the extension frame is located on both sides of the arc-shaped slide, and are fixedly connected with an arc-shaped electric slide, the interior of the arc-shaped electric slide is slidably connected with a movable support plate through an electric slider, the bottom of the movable support plate is fixedly connected with an annular plate, the inner wall of the annular plate is fixedly connected with a toggle bar, both sides of the movable support plate are fixedly connected with elastic filter screens, and the side of the elastic filter screen away from the movable support plate is fixedly connected with a positioning side plate.

[0021] Preferably, the top of the arc-shaped connecting tube is connected to the bottom of the exhaust pipe, and the interior of the adsorption tube is filled with activated carbon particles. The activated carbon particles in the adsorption tube can adsorb the incoming gas, and the gas after adsorption is discharged from the filter holes of the elastic filter, so as to adsorb the gas containing formaldehyde and then discharge it. At the same time, the arc-shaped electric slide is turned on, and the arc-shaped electric slide drives the movable support plate to move along the arc-shaped slide mouth through the internal electric slider, and the movable support plate drives the annular plate to slide along the inner wall of the adsorption tube, and the annular plate drives the toggle bar to flip the activated carbon particles in the adsorption tube, so that the activated carbon particles can be evenly and fully in contact with the gas, through the adsorption efficiency, the arc-shaped connecting tube is sleeved on the outside of the detection tube, and the bottom of the movable support plate passes through the arc-shaped slide mouth and extends to the interior of the adsorption tube.

[0022] Preferably, the outer side of the annular plate is slidably connected to the inner wall of the adsorption tube, and the side of the positioning side plate away from the elastic filter screen is fixedly connected to the outer side of the extension frame.

[0023] The present invention provides a device for detecting formaldehyde content in indoor decoration air. It has the following beneficial effects:

[0024] 1. This indoor decoration air formaldehyde content detection equipment, through the installation of the exhaust device, the gas passes through the vent and blows to the detection head of the formaldehyde detector, the formaldehyde content of the gas delivered can be detected by the formaldehyde detector, the indoor air can be quickly extracted and directly delivered to the detection head, so that the gas containing formaldehyde can be detected more quickly by the detection head.

[0025] 2. This indoor decoration air formaldehyde content detection equipment, through the installation of cleaning device and filter net, the electric slide rail drives the L-shaped push plate to move through the internal electric slider, the L-shaped push plate drives the arc plate to move through the compression spring, the arc plate drives the arc brush plate to move along the outer wall of the filter net, and brushes the outer wall of the filter net to brush off the impurities attached to one side of the outer wall of the filter net, so as to avoid the accumulation of impurities and clogging the filter net, thereby improving the filtering efficiency of the filter net and avoiding the influence of impurities on the detection results, and improving the accuracy of formaldehyde detection.

[0026] 3. This indoor decoration air formaldehyde content detection equipment, through the installation of comb-tooth scraper, the electric slider inside the electric slide rail drives the L-shaped push plate to move, so that the L-shaped push plate drives the arc plate to gradually move away from the filter, and the arc plate drives the arc brush plate to move away from one side of the filter through the comb-tooth scraper, and the comb-tooth scraper scrapes and cleans the brush head on the passing arc brush plate, and scrapes off the impurities adhered to the brush head. When the brush head on the arc brush plate is completely removed from the comb-tooth scraper, the brush head on the arc brush plate is driven by the electric slide rail to be reinserted into the comb-tooth scraper, and the cleaned arc brush plate can be used to clean the filter, so as to avoid the brush head on the arc brush plate adhering to a lot of impurities that affect the cleaning efficiency.

[0027] 4. This indoor decoration air formaldehyde content detection equipment, through the installation of the adsorption device, since the adsorption tube is filled with activated carbon particles, the activated carbon particles in the adsorption tube can adsorb the incoming gas, and the gas after adsorption is discharged from the filter holes of the elastic filter, so the gas containing formaldehyde can be adsorbed and then discharged. At the same time, the arc-shaped electric slide is turned on, and the arc-shaped electric slide drives the moving support plate to move along the arc-shaped slide through the internal electric slider, and the moving support plate drives the annular plate to slide along the inner wall of the adsorption tube, and the annular plate drives the toggle bar to turn over the activated carbon particles in the adsorption tube, so that the activated carbon particles can be evenly and fully in contact with the gas, thereby improving the adsorption efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the structure of the indoor decoration air formaldehyde content detection device of the present invention;

[0029] Figure 2 It is a structural schematic diagram of the formaldehyde detector of the present invention;

[0030] Figure 3 It is a schematic diagram of the internal structure of the detection tube of the present invention;

[0031] Figure 4 Schematic diagram of the internal structure of the filter screen of the present invention;

[0032] Figure 5 It is a structural schematic diagram of the differential of the present invention;

[0033] Figure 6 It is a structural schematic diagram of the arc-shaped limiting frame of the present invention;

[0034] Figure 7 It is a structural schematic diagram of the curved plate of the present invention;

[0035] Figure 8 It is a structural schematic diagram of the arc-shaped connecting pipe of the present invention;

[0036] Fig. 9 Schematic diagram of the internal structure of the adsorption tube of the present invention.

[0037] In the figure: 1. detection cylinder; 2. exhaust pipe; 3. formaldehyde detector; 4. support frame; 5. universal roller; 6. filter; 7. exhaust device; 71. exhaust fan blade; 72. drive motor; 73. positioning plate; 74. vent; 75. connecting frame; 8. cleaning device; 81. differential; 82. rotating column; 83. turntable; 84. arc limit frame; 85. electric slide rail; 86. comb scraper; 87. L-shaped push plate; 88. compression spring; 89. arc plate; 810. arc brush plate; 9. adsorption device; 91. adsorption tube; 92. arc connecting pipe; 93. extension frame; 94. arc slide; 95. arc electric slide; 96. movable support plate; 97. ring plate; 98. toggle bar; 99. elastic filter; 910. positioning side plate. DETAILED DESCRIPTION

[0038] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0039] For the first embodiment, please refer to Figure 1-Figure 7 The present invention provides a technical solution: a device for detecting formaldehyde content in indoor decoration air, comprising:

[0040] A detection tube 1, the top of which is connected to an exhaust pipe 2, and the interior of the detection tube 1 is fixedly connected to a formaldehyde detector 3;

[0041] A support frame 4, the bottom of which is fixedly connected with a universal roller 5;

[0042] A filter screen 6 having a hemispherical structure;

[0043] The exhaust device 7 is used to quickly extract the indoor gas to the formaldehyde detector 3;

[0044] A cleaning device 8 is used to clean impurities adhering to the outside of the filter screen 6;

[0045] Adsorption device 9, which performs adsorption treatment on the detected gas before discharging it;

[0046] The bottom of the detection cylinder 1 is fixedly connected to the top of the filter screen 6, the bottom of the detection cylinder 1 is set to an open shape, the end of the support frame 4 away from the universal roller 5 is fixedly connected to the outer wall of the detection cylinder 1, the support frame 4 is provided with multiple groups, the exhaust pipe 2 is provided with two groups and is symmetrically distributed on both sides of the detection cylinder 1, the outer wall of the exhaust device 7 is fixedly connected to the inner wall of the detection cylinder 1, the cleaning device 8 is provided at the bottom of the filter screen 6 and is rotatably connected to the bottom of the filter screen 6, and one side of the adsorption device 9 is connected to one end of the exhaust pipe 2;

[0047] Wherein, the air extraction device 7 comprises:

[0048] The exhaust fan blade 71, the top of which is fixedly connected to a driving motor 72;

[0049] The positioning plate 73 has a vent 74 on its top and a connecting frame 75 fixedly connected to the outer side of the positioning plate 73 .

[0050] The output end of the driving motor 72 is fixedly connected to the top of the exhaust fan blade 71 , multiple groups of ventilation holes 74 are opened and evenly distributed on the top of the positioning plate 73 , and multiple groups of connecting frames 75 are evenly distributed on the outside of the positioning plate 73 .

[0051] One end of the connecting frame 75 away from the positioning plate 73 is fixedly connected to the inner wall of the detection tube 1 , and the bottom of the driving motor 72 passes through the positioning plate 73 and is fixedly connected to the positioning plate 73 .

[0052] The cleaning device 8 includes a differential 81, the output end of the differential 81 is fixedly connected to a rotating column 82, the bottom of the rotating column 82 is fixedly connected to a turntable 83, the outer side of the turntable 83 is fixedly connected to an arc-shaped limit frame 84, both ends of the inner wall of the arc-shaped limit frame 84 are fixedly connected to electric slide rails 85, the inner wall of the arc-shaped limit frame 84 is fixedly connected to a comb-tooth scraper 86, the interior of the electric slide rail 85 is slidably connected to an L-shaped push plate 87 through an electric slider, one side of the L-shaped push plate 87 is fixedly connected to an arc plate 89 through a compression spring 88, and the side of the arc plate 89 close to the arc-shaped limit frame 84 is fixedly connected to an arc-shaped brush plate 810.

[0053] The input end of the differential 81 is fixedly connected to the bottom of the exhaust fan blade 71, the outer side of the differential 81 is fixedly connected to the inner wall of the filter 6 through a bracket, and the bottom of the rotating column 82 passes through the bottom of the filter 6 and is rotatably connected to the bottom of the filter 6 through a sealed bearing.

[0054] There are multiple groups of comb-tooth scrapers 86 and they are evenly distributed on the inner wall of the arc-shaped limit frame 84. There are two groups of L-shaped push plates 87 and they are symmetrically distributed at both ends of the arc-shaped plate 89. There are multiple groups of arc-shaped limit frames 84 and they are evenly distributed on the outside of the turntable 83. The arc-shaped limit frames 84 are set on the outside of the filter screen 6.

[0055] When in use, the support frame 4 is pushed manually, and the universal roller 5 is used to drive the support frame 4 to move to the designated area, and then the driving motor 72 is turned on. The output end of the driving motor 72 drives the exhaust fan blades 71 to rotate, and the gas in the area is drawn to the filter 6. After being filtered by the filter 6, the gas enters the detection tube 1, and the gas passes through the vent 74 and is blown to the detection head of the formaldehyde detector 3. The formaldehyde detector 3 can be used to detect the formaldehyde content of the gas sent in, and the indoor air can be quickly extracted and directly transported to the detection head, so that the gas containing formaldehyde can be detected by the detection head more quickly.

[0056] The rotation of the exhaust fan blades 71 drives the input end of the differential 81 to rotate. Through the setting of the differential 81, the output end of the differential 81 drives the rotating column 82 to rotate, and the rotating column 82 drives the arc limit frame 84 to rotate. The arc limit frame 84 drives the electric slide rail 85 to rotate. The electric slide rail 85 drives the L-shaped push plate 87 to move through the internal electric slider. The L-shaped push plate 87 drives the arc plate 89 to move through the compression spring 88. The arc plate 89 drives the arc brush plate 810 to move along the outer wall of the filter screen 6, and cleans the outer wall of the filter screen 6, brushes off the impurities attached to one side of the outer wall of the filter screen 6, avoids the accumulation of impurities and clogging the filter screen 6, improves the filtering efficiency of the filter screen 6, thereby avoiding the influence of impurities on the detection results, and improves the accuracy of formaldehyde detection.

[0057] When it is necessary to clean the brush head on one side of the arc-shaped brush plate 810, the electric slide rail 85 is turned on, and the electric slider inside the electric slide rail 85 drives the L-shaped push plate 87 to move, so that the L-shaped push plate 87 drives the arc plate 89 to gradually move away from the filter screen 6. When the arc plate 89 drives the arc-shaped brush plate 810 to move away from one side of the filter screen 6, it passes through the comb-tooth scraper 86. The comb-tooth scraper 86 scrapes and cleans the brush head on the passing arc-shaped brush plate 810, and scrapes off the impurities adhered to the brush head. When the brush head on the arc-shaped brush plate 810 is completely removed from the comb-tooth scraper 86, the brush head on the arc-shaped brush plate 810 is driven by the electric slide rail 85 to be reinserted into the comb-tooth scraper 86, and the cleaned arc-shaped brush plate 810 can be used to clean the filter screen 6, so as to avoid the brush head on the arc-shaped brush plate 810 adhering to a large number of impurities that affect the cleaning efficiency.

[0058] For the second embodiment, please refer to Figure 1-Figure 9 The present invention provides a technical solution: on the basis of embodiment 1, the adsorption device 9 includes an adsorption tube 91, and the adsorption tube 91 is provided with two groups. The two groups of adsorption tubes 91 are connected by an arc-shaped connecting tube 92, and the top of the adsorption tube 91 is connected to an extension frame 93. The top of the extension frame 93 is provided with an arc-shaped sliding opening 94, and the top of the extension frame 93 is located on both sides of the arc-shaped sliding opening 94, and arc-shaped electric slides 95 are fixedly connected. The interior of the arc-shaped electric slide 95 is slidably connected to a movable support plate 96 through an electric slider, and the bottom of the movable support plate 96 is fixedly connected to an annular plate 97, and the inner wall of the annular plate 97 is fixedly connected to a toggle bar 98, and both sides of the movable support plate 96 are fixedly connected to elastic filter screens 99, and the side of the elastic filter screen 99 away from the movable support plate 96 is fixedly connected to a positioning side plate 910.

[0059] The top of the arc-shaped connecting tube 92 is connected to the bottom of the exhaust pipe 2 , the interior of the adsorption tube 91 is filled with activated carbon particles, the arc-shaped connecting tube 92 is sleeved on the outside of the detection tube 1 , and the bottom of the movable support plate 96 passes through the arc-shaped sliding opening 94 and extends to the interior of the adsorption tube 91 .

[0060] The outer side of the annular plate 97 is slidably connected to the inner wall of the adsorption tube 91 , and the side of the positioning side plate 910 away from the elastic filter screen 99 is fixedly connected to the outer side of the extension frame 93 .

[0061] During use, the detected gas is discharged from the exhaust pipe 2 into the arc-shaped connecting pipe 92, and then enters the adsorption tube 91 through the arc-shaped connecting pipe 92. Since the adsorption tube 91 is filled with activated carbon particles, the activated carbon particles in the adsorption tube 91 can adsorb the incoming gas, and the gas after adsorption is discharged from the filter holes of the elastic filter 99, so that the gas containing formaldehyde can be adsorbed and then discharged. At the same time, the arc-shaped electric slide 95 is turned on, and the arc-shaped electric slide 95 drives the movable support plate 96 to move along the arc-shaped slide 94 through the internal electric slider. The movable support plate 96 drives the annular plate 97 to slide along the inner wall of the adsorption tube 91, and the annular plate 97 drives the toggle bar 98 to flip the activated carbon particles in the adsorption tube 91, so that the activated carbon particles can be evenly and fully in contact with the gas, thereby improving the adsorption efficiency.

[0062] Working principle: manually push the support frame 4, use the universal roller 5 to drive the support frame 4 to move to the designated area, then turn on the drive motor 72, the output end of the drive motor 72 drives the exhaust fan blade 71 to rotate, and the gas in the area is drawn to the filter 6, and enters the detection cylinder 1 after being filtered by the filter 6, and the gas passes through the vent 74 and blows to the detection head of the formaldehyde detector 3, and the formaldehyde detector 3 can be used to detect the formaldehyde content of the gas sent in, the rotation of the exhaust fan blade 71 drives the input end of the differential 81 to rotate, and through the setting of the differential 81, the output end of the differential 81 drives the rotating column 82 to rotate, and the rotating column 82 drives the arc-shaped limit frame 84 to rotate, and the arc-shaped limit frame 84 drives the electric slide rail 85 to rotate. The electric slide rail 85 drives the L-shaped push plate 87 to move through the internal electric slider. The L-shaped push plate 87 drives the arc plate 89 to move through the compression spring 88. The arc plate 89 drives the arc-shaped brush plate 810 to move along the outer wall of the filter screen 6 and cleans the outer wall of the filter screen 6 to brush off the impurities attached to one side of the outer wall of the filter screen 6 to avoid impurities accumulating and clogging the filter screen 6. When it is necessary to clean the brush head on one side of the arc-shaped brush plate 810, the electric slide rail 85 is turned on, and the L-shaped push plate 87 is driven to move by the electric slider inside the electric slide rail 85, so that the L-shaped push plate 87 can be cleaned. The plate 87 drives the arc plate 89 to gradually move away from the filter screen 6. When the arc plate 89 drives the arc brush plate 810 to move away from one side of the filter screen 6, it passes through the comb-tooth scraper 86. The comb-tooth scraper 86 scrapes and cleans the brush head on the arc brush plate 810 passing by, and scrapes off the impurities adhering to the brush head. When the brush head on the arc brush plate 810 is completely removed from the comb-tooth scraper 86, the brush head on the arc brush plate 810 is driven by the electric slide rail 85 to be reinserted into the comb-tooth scraper 86. The cleaned arc brush plate 810 can be used to clean the filter screen 6. The detected gas is discharged from the exhaust pipe 2 into the arc connecting pipe 92, and then enters the adsorption gas through the arc connecting pipe 92. In the tube 91, since the adsorption tube 91 is filled with activated carbon particles, the activated carbon particles in the adsorption tube 91 can adsorb the incoming gas, and the gas after adsorption is discharged from the filter holes of the elastic filter 99, so the gas containing formaldehyde can be adsorbed and then discharged. At the same time, the arc-shaped electric slide 95 is turned on, and the arc-shaped electric slide 95 drives the movable support plate 96 to move along the arc-shaped slide 94 through the internal electric slider. The movable support plate 96 drives the annular plate 97 to slide along the inner wall of the adsorption tube 91, and the annular plate 97 drives the toggle bar 98 to flip the activated carbon particles in the adsorption tube 91, so that the activated carbon particles can be evenly and fully in contact with the gas.

[0063] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A device for detecting formaldehyde content in indoor decoration air, characterized in that: include: A detection cylinder (1), the top of the detection cylinder (1) being connected to an exhaust pipe (2), and the interior of the detection cylinder (1) being fixedly connected to a formaldehyde detector (3); A support frame (4), wherein a universal roller (5) is fixedly connected to the bottom of the support frame (4); A filter screen (6), the filter screen (6) having a hemispherical structure; An exhaust device (7), which quickly extracts indoor gas to the formaldehyde detector (3); A cleaning device (8) is used to clean impurities adhering to the outside of the filter screen (6); An adsorption device (9), the adsorption device (9) performs adsorption treatment on the detected gas before discharging it; The bottom of the detection cylinder (1) is fixedly connected to the top of the filter (6), the bottom of the detection cylinder (1) is arranged to be open, one end of the support frame (4) away from the universal roller (5) is fixedly connected to the outer wall of the detection cylinder (1), the support frame (4) is provided with a plurality of groups, the exhaust pipe (2) is provided with two groups and is symmetrically distributed on both sides of the detection cylinder (1), the outer wall of the exhaust device (7) is fixedly connected to the inner wall of the detection cylinder (1), the cleaning device (8) is arranged at the bottom of the filter (6) and is rotatably connected to the bottom of the filter (6), and one side of the adsorption device (9) is connected to one end of the exhaust pipe (2); Wherein, the air extraction device (7) comprises: An exhaust fan blade (71), the top of the exhaust fan blade (71) being fixedly connected to a drive motor (72); A positioning plate (73), wherein a vent (74) is provided on the top of the positioning plate (73), and a connecting frame (75) is fixedly connected to the outer side of the positioning plate (73); The cleaning device (8) comprises a differential (81), the output end of the differential (81) is fixedly connected to a rotating column (82), the bottom of the rotating column (82) is fixedly connected to a rotating disk (83), the outer side of the rotating disk (83) is fixedly connected to an arc-shaped limit frame (84), both ends of the inner wall of the arc-shaped limit frame (84) are fixedly connected to electric slide rails (85), the inner wall of the arc-shaped limit frame (84) is fixedly connected to a comb-tooth scraper (86), the interior of the electric slide rail (85) is slidably connected to an L-shaped push plate (87) via an electric slider, one side of the L-shaped push plate (87) is fixedly connected to an arc-shaped plate (89) via a compression spring (88), and the side of the arc-shaped plate (89) close to the arc-shaped limit frame (84) is fixedly connected to an arc-shaped brush plate (810); The input end of the differential (81) is fixedly connected to the bottom of the exhaust fan blade (71), the outer side of the differential (81) is fixedly connected to the inner wall of the filter screen (6) via a bracket, and the bottom of the rotating column (82) penetrates the bottom of the filter screen (6) and is rotatably connected to the bottom of the filter screen (6) via a sealed bearing; The adsorption device (9) comprises an adsorption tube (91), wherein two groups of the adsorption tube (91) are provided, and an arc-shaped connecting tube (92) is connected between the two groups of the adsorption tubes (91); the top of the adsorption tube (91) is connected to an extension frame (93), and the top of the extension frame (93) is provided with an arc-shaped sliding opening (94); the top of the extension frame (93) is located on both sides of the arc-shaped sliding opening (94) and is fixedly connected to an arc-shaped electric slideway (95); the interior of the arc-shaped electric slideway (95) is slidably connected to a movable support plate (96) via an electric slider; the bottom of the movable support plate (96) is fixedly connected to an annular plate (97); the inner wall of the annular plate (97) is fixedly connected to a toggle bar (98); both sides of the movable support plate (96) are fixedly connected to an elastic filter screen (99); and the side of the elastic filter screen (99) away from the movable support plate (96) is fixedly connected to a positioning side plate (910).

2. The indoor decoration air formaldehyde content detection device according to claim 1 is characterized by: The output end of the driving motor (72) is fixedly connected to the top of the exhaust fan blade (71), the ventilation openings (74) are provided in multiple groups and are evenly distributed on the top of the positioning plate (73), and the connecting frames (75) are provided in multiple groups and are evenly distributed on the outside of the positioning plate (73).

3. The indoor decoration air formaldehyde content detection device according to claim 1 is characterized in that: One end of the connecting frame (75) away from the positioning plate (73) is fixedly connected to the inner wall of the detection cylinder (1), and the bottom of the driving motor (72) passes through the positioning plate (73) and is fixedly connected to the positioning plate (73).

4. The indoor decoration air formaldehyde content detection device according to claim 1 is characterized by: The comb-tooth scrapers (86) are provided in multiple groups and are evenly distributed on the inner wall of the arc-shaped limit frame (84); the L-shaped push plates (87) are provided in two groups and are symmetrically distributed at both ends of the arc-shaped plate (89); the arc-shaped limit frames (84) are provided in multiple groups and are evenly distributed on the outside of the rotating disk (83); and the arc-shaped limit frames (84) are provided on the outside of the filter screen (6).

5. The indoor decoration air formaldehyde content detection device according to claim 1 is characterized by: The top of the arc-shaped connecting tube (92) is connected to the bottom of the exhaust pipe (2); the interior of the adsorption tube (91) is filled with activated carbon particles; the arc-shaped connecting tube (92) is sleeved on the outside of the detection tube (1); and the bottom of the movable support plate (96) passes through the arc-shaped sliding opening (94) and extends to the interior of the adsorption tube (91).

6. The indoor decoration air formaldehyde content detection device according to claim 1 is characterized by: The outer side of the annular plate (97) is slidably connected to the inner wall of the adsorption tube (91), and the side of the positioning side plate (910) away from the elastic filter screen (99) is fixedly connected to the outer side of the extension frame (93).

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