Rapid determination device and method for formaldehyde in indoor air

Abstract

The invention discloses a rapid determination device and method for formaldehyde in indoor air, and relates to the technical field of indoor formaldehyde detection, including a mobile component and a dust filter collection component, wherein the mobile component includes a directional rail and a mounting seat, and the dust filter collection component includes a dust filter cylinder. The rapid determination device of the invention can accelerate the falling of dust attached to a fine filter screen, and the fallen dust is collected by a sticky net, thereby preventing dust from blocking the passage of air, accelerating the passage of air while realizing the operation of air dust filtration, and improving the effect of formaldehyde determination efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of indoor formaldehyde detection, and in particular to a rapid determination device and a determination method for formaldehyde in indoor air. Background Art

[0002] Formaldehyde testing refers to the quantitative detection of formaldehyde contained in air, water, food, clothing, boards, leather, etc. through specific methods or instruments. In newly renovated rooms, the emission of formaldehyde is relatively large. After the formaldehyde evaporates for a period of time, it is necessary to use a formaldehyde rapid determination device to detect the indoor formaldehyde content to avoid excessive formaldehyde content causing damage to human health.

[0003] During the use of the existing formaldehyde rapid detection device, since the indoor dust content of the newly installed house is high, after the indoor air enters the detection device, it carries a lot of dust. The presence of this part of dust is mixed in the air and affects the accuracy of the measurement results of the formaldehyde sensor. At the same time, the dust will gradually adhere to the measurement port of the formaldehyde sensor, further affecting the accuracy of the formaldehyde measurement results, thereby reducing the use value of the formaldehyde rapid detection device. Summary of the invention

[0004] The present invention discloses a rapid determination device and method for formaldehyde in indoor air, and aims to solve the technical problem that during use of the existing rapid formaldehyde determination device, due to the high dust content in the indoor air of a newly installed house, after the indoor air enters the determination device, it carries a lot of dust, and the presence of this part of dust confuses the air and affects the accuracy of the determination result of the formaldehyde sensor. At the same time, the dust will gradually adhere to the determination port of the formaldehyde sensor, further affecting the accuracy of the formaldehyde determination result.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A rapid determination device for formaldehyde in indoor air comprises a moving component and a dust collection component, wherein the moving component comprises a directional rail and a mounting seat, and the dust collection component comprises a dust filter cartridge, wherein a moving groove is formed in an annular manner inside the dust filter cartridge, and a moving slider is slidably connected inside each moving groove, and the outer side walls of a plurality of moving sliders are fixedly connected to the same mesh plate, a pull groove is formed in the outer side wall of the dust filter cartridge close to the mesh plate, a pull block is inserted inside the pull groove, a fixed ring frame is fixedly connected to the outer side wall of the pull block facing downward, a sticky net is provided inside the fixed ring frame, and one side of the pull block An arc-shaped pressing plate is fixedly connected, and the arc-shaped pressing plate is in contact with the outer wall of the dust filter cartridge. The outer walls of the dust filter cartridge at both ends of the pull block are fixedly connected with insert cylinders, and the same positioning rod is inserted into the two insert cylinders. A through hole is opened on one side of the pull block, and the positioning rod passes through the through hole. A fine filter screen is fixedly connected to the inner wall of the dust filter cartridge close to the fixed ring frame, and the fine filter screen is in contact with the outer wall of the fixed ring frame. The fixed ring frame is located between the mesh plate and the fine filter screen. Elastic connecting rods are distributed in an annular manner on the inner wall of the dust filter cartridge close to the mesh plate, and the end of each elastic connecting rod is fixedly connected to an impact block.

[0007] By providing a dust filter collection component, when collecting indoor air, the air pump is started, and the air pump guides air into the dust filter cartridge. The air carries a large impact force when entering the dust filter cartridge, and the impact force drives the mesh plate to move toward the fine filter. At the same time, the air drives the impact block on the elastic connecting rod to impact the mesh plate, thereby transmitting the vibration to the fine filter, and accelerating the falling of dust attached to the fine filter by means of vibration. The fallen dust is collected by the sticky net, thereby avoiding dust from blocking the passage of air. When the air dust filter operation is realized, the passage of air is accelerated, and the formaldehyde measurement efficiency is improved. After the dust carried in the air is filtered and collected, the clean air flows to the formaldehyde sensor body, thereby ensuring that the formaldehyde sensor body is not affected by dust during operation, thereby improving the accuracy of the formaldehyde measurement result.

[0008] In a preferred solution, a sliding block is slidably connected to the directional rail, and the mounting seat is fixedly connected to the top of the sliding block, the side of the directional rail away from the mounting seat is fixedly connected to an axis frame, one side of the axis frame is fixedly connected to a forward and reverse motor, the output shaft of the forward and reverse motor is fixedly connected to a rotating shaft through a coupling, one end of the rotating shaft is connected to an inner wall of one side of the axis frame through a bearing, the outer side of the rotating shaft is fixedly connected to a winding roller, the outer side of the winding roller is wrapped with a positioning guide rope, and one end of the positioning guide rope is fixedly connected to one side of the mounting seat.

[0009] By providing a moving component, when conducting indoor formaldehyde measurement, the directional rail is placed indoors, and during the process of introducing air into the detection tube, the drive motor 1 and the forward and reverse motors are started, the drive motor 1 drives the gas collecting arc cover to rotate, and the forward and reverse motors reel in the positioning guide rope, thereby driving the sliding block to slide in the directional rail. In this way, air collection at different positions in the room can be achieved, thereby realizing multi-position formaldehyde content measurement, thereby improving the use value of the formaldehyde rapid measurement device.

[0010] In a preferred embodiment, a motor slot is formed on the top of the mounting seat, and a drive motor 1 is fixedly connected to the inside of the motor slot, the output shaft of the drive motor 1 is fixedly connected to the rotating shaft via a coupling, and the top of the rotating shaft is fixedly connected to the base.

[0011] In a preferred embodiment, a heat dissipation hole is provided on one side of the mounting seat close to the motor slot, and the heat dissipation hole is communicated with the motor slot. An annular reinforcement groove is provided on the outer side of the driving motor of the mounting seat, and a reinforcement slide rod is equidistantly slidably connected inside the annular reinforcement groove, and the reinforcement slide rod is fixedly connected to the bottom of the base.

[0012] In a preferred solution, mounting rods are fixedly connected to both ends of the top of the base, and the same side of the two mounting rods is fixedly connected to the same gas collecting arc hood, the outer wall of the gas collecting arc hood away from the dust filter cylinder is provided with a gas collecting hole, the top of the base is fixedly connected to a lifting block, and the top of the lifting block is fixedly connected to a detection cylinder.

[0013] In a preferred solution, a pump ring frame is fixedly connected to the port of the detection cylinder facing the gas arc hood, and an air pump is fixedly connected to the inside of the pump ring frame, an air inlet end of the air pump is fixedly connected to an exhaust pipe, one end of the exhaust pipe is plugged into the inside of the gas arc hood, a dust filter cylinder is fixedly connected to the inner wall of the detection cylinder, an air delivery end of the air pump is fixedly connected to an air guide pipe, one end of the air guide pipe is plugged into the inside of the dust filter cylinder, a fitting hole is opened on the outer side wall of the detection cylinder facing upward, the width of the fitting hole is the same as the width of the groove, and the fitting hole and the groove are overlapped.

[0014] In a preferred solution, the end of the detection cylinder away from the gas collecting arc hood is provided with a loading and unloading cleaning assembly, and the loading and unloading cleaning assembly includes a mounting sleeve, a mounting hole is opened at the end of the dust filter cylinder away from the gas collecting arc hood, the mounting sleeve is fixedly connected to the inside of the mounting hole, and the side of the mounting sleeve located in the dust filter cylinder is fixedly connected with a dust collecting ring tube, and the outer wall of the dust collecting ring tube facing the center point of the mounting sleeve is provided with a dust collecting hole, and the outer wall of the detection cylinder facing upward is fixedly connected with a dust suction pump and a dust collecting box, the dust suction end of the dust suction pump is fixedly connected with a dust suction pipe, one end of the dust suction pipe is inserted into the inside of the dust collecting ring tube, and the dust delivery end of the dust suction pump is connected to the inside of the dust collecting box through a pipe.

[0015] By providing a loading and unloading cleaning component, when the formaldehyde sensor body is loaded and unloaded, the driving motor 2 is started, and the driving motor 2 drives the bristles on the rotating ring frame to clean the detection port of the formaldehyde sensor body passing through the inside of the installation sleeve. During the cleaning process, the dust suction pump is started, and the dust suction pump collects and processes the dust brushed off through the dust collecting holes on the dust collecting ring tube to prevent the dust from being retained in the dust filter cylinder and causing pollution, thereby eliminating dust adhesion during the loading and unloading process of the formaldehyde sensor body, and further improving the accuracy of the measurement results of the formaldehyde sensor body.

[0016] In a preferred solution, the inner side of the end of the mounting sleeve close to the dust collecting ring tube is fixedly connected with an annular limit rail, and the inner side of the annular limit rail is slidably connected with a limit slide rod at equal distances, the ends of multiple annular limit slide rods are fixedly connected with the same rotating ring frame, the outer side wall of the rotating ring frame is fixedly connected with a matching toothed disk, the inner side wall of the rotating ring frame is provided with bristles, one side of the mounting sleeve is fixedly connected with drive motor 2, the output shaft of drive motor 2 is fixedly connected with a driving shaft through a coupling, the outer side of the driving shaft is fixedly connected with a driving toothed disk, and the driving toothed disk and the matching toothed disk are meshed with each other.

[0017] In a preferred embodiment, the inner wall of the mounting sleeve away from the dust collecting ring tube is provided with an embedded guide rail in an annular shape, and the inner parts of the multiple embedded guide rails are slidably connected with the same sealing slide plate, the sealing slide plate is fitted with the inner wall of the mounting sleeve, the inner wall of the sealing slide plate is fixedly connected with a mounting ring, the interior of the mounting ring is fixedly connected with a formaldehyde sensor body, the formaldehyde sensor body is in contact with the bristles, and the side of the mounting ring facing the open end of the mounting sleeve is fixedly connected with a long pulling rod.

[0018] The method for rapid determination of formaldehyde in indoor air, using the rapid determination device for formaldehyde in indoor air as described above, comprises the following steps:

[0019] Step 1: First, install the formaldehyde sensor body, slide the outer sealing slide plate into each embedded guide rail, and during the loading process, start the drive motor 2, which drives the bristles on the rotating ring frame to clean the detection port of the formaldehyde sensor body passing through the inside of the installation sleeve. During the cleaning process, start the dust suction pump, which collects the dust brushed off through the dust collecting holes on the dust collecting ring pipe;

[0020] Step 2: After the formaldehyde sensor body is installed, during the air collection process, the drive motor 1 and the forward and reverse motors are started. The drive motor 1 drives the gas arc cover to rotate, and the forward and reverse motors reel in the positioning guide rope, thereby driving the sliding block to slide in the directional rail. In this way, air collection at different positions in the room is achieved;

[0021] Step 3: After the air is introduced into the detection cylinder, it carries a large impact force when entering the dust filter cylinder. The impact force drives the mesh plate to move toward the fine filter. At the same time, the air drives the impact block on the elastic connecting rod to impact the mesh plate, thereby transmitting the vibration to the fine filter. The vibration accelerates the falling of dust attached to the fine filter. The fallen dust is collected by the sticky net. The air enters the formaldehyde sensor body and starts to measure the formaldehyde content.

[0022] As can be seen from the above, the rapid determination device and method of formaldehyde in indoor air provided by the present invention have the characteristics of starting the air pump when collecting indoor air, and the air pump guides the air into the dust filter cartridge. The air carries a large impact force when entering the dust filter cartridge, and the impact force drives the mesh plate to move toward the fine filter. At the same time, the air drives the impact block on the elastic connecting rod to impact the mesh plate, thereby transmitting the vibration to the fine filter, and accelerating the falling of dust attached to the fine filter by vibration. The fallen dust is collected by the sticky net, thereby avoiding dust from blocking the passage of air. When the air dust filtration operation is realized, the passage of air is accelerated, and the technical effect of improving the efficiency of formaldehyde determination is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The figure is a schematic diagram of the overall structure of the device for rapid determination of formaldehyde in indoor air proposed by the present invention.

[0024] Figure 2 The figure is a side view of the overall structure of the device for rapid determination of formaldehyde in indoor air proposed by the present invention.

[0025] Figure 3 The present invention is a schematic diagram of the combined structure of the gas collecting arc hood and the detection tube of the rapid determination device for formaldehyde in indoor air proposed by the present invention.

[0026] Figure 4 for Figure 3 Schematic diagram of the internal structure of the detection tube.

[0027] Figure 5 This is a cross-sectional view of the dust filter cartridge structure of the device for quickly determining formaldehyde in indoor air proposed by the present invention.

[0028] Figure 6 This is a disassembled diagram of the mesh plate and fine filter of the device for rapid determination of formaldehyde in indoor air proposed by the present invention.

[0029] Figure 7 This is a schematic diagram of the structure of the loading, unloading and cleaning components of the rapid determination device for formaldehyde in indoor air proposed by the present invention.

[0030] Figure 8 The present invention is a cross-sectional view of the installation sleeve structure of the device for rapid determination of formaldehyde in indoor air proposed by the present invention.

[0031] Fig. 9 This is a schematic diagram of the internal structure of the installation sleeve of the rapid determination device for formaldehyde in indoor air proposed by the present invention.

[0032] Fig.10 This is a schematic diagram of the structure of the mobile components of the device for rapid determination of formaldehyde in indoor air proposed by the present invention.

[0033] Fig.11 This is a cross-sectional view of the mounting base structure of the device for rapid determination of formaldehyde in indoor air proposed by the present invention.

[0034] In the figure: 1. moving assembly; 101. directional rail; 102. shaft frame; 103. winding roller; 104. positioning guide rope; 105. sliding block; 106. forward and reverse motor; 107. rotating shaft; 108. mounting seat; 109. heat dissipation hole; 110. annular reinforcement groove; 111. rotating shaft; 112. reinforcement slide bar; 113. driving motor 1; 2. detection cylinder; 3. gas arc cover; 4. gas collecting hole; 5. exhaust pipe; 6. loading and unloading cleaning assembly; 601. mounting sleeve; 602. dust collecting box; 603. dust suction pump; 604. dust suction pipe; 605. limit slide bar; 606. dust collecting hole; 607. dust collecting ring pipe; 608. rotating ring frame; 609. matching toothed disc; 610. annular limit rail; 611. driving shaft; 612. driving gear disc; 613. driving motor 2; 614. bristles; 7. base; 8. lifting block; 9. mounting rod; 10. air pump; 11. air duct; 12. dust collection assembly; 1201. dust filter cartridge; 1202. pull groove; 1203. pull block; 1204. moving groove; 1205. impact block; 1206. elastic connecting rod; 1207. moving slider; 1208. mesh plate; 1209. positioning plug rod; 1210. plug cylinder; 1211. arc-shaped pressing piece; 1212. fixed ring frame; 1213. sticky net; 1214. fine filter; 13. formaldehyde sensor body; 14. mounting ring; 15. sealing slide plate; 16. embedded guide rail; 17. pulling long rod. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0036] The rapid formaldehyde determination device and determination method in indoor air disclosed in the present invention are mainly applied to the existing rapid formaldehyde determination device during use. Since the dust content in the newly installed house is relatively high, after the indoor air enters the determination device, it carries a lot of dust. The presence of this part of dust confuses the air and affects the accuracy of the measurement result of the formaldehyde sensor. At the same time, the dust will gradually adhere to the measurement port of the formaldehyde sensor, further affecting the accuracy of the formaldehyde measurement result.

[0037] Reference Figure 1-Figure 11 A rapid determination device for formaldehyde in indoor air comprises a moving component 1 and a dust collection component 12, wherein the moving component 1 comprises a directional rail 101 and a mounting seat 108, and the dust collection component 12 comprises a dust filter cartridge 1201, wherein a moving groove 1204 is provided in an annular manner inside the dust filter cartridge 1201, and a moving slider 1207 is slidably connected inside each moving groove 1204, and the outer side walls of a plurality of moving sliders 1207 are fixedly connected with the same mesh plate 1208, a groove 1202 is provided on the outer side wall of the dust filter cartridge 1201 close to the mesh plate 1208, a pull block 1203 is inserted inside the groove 1202, a fixed ring frame 1212 is fixedly connected to the outer side wall of the pull block 1203 facing downward, a sticky net 1213 is provided inside the fixed ring frame 1212, and an arc pressure is fixedly connected to one side of the pull block 1203 The outer wall of the dust filter cartridge 1201 at both ends of the pull block 1203 is fixedly connected with an insert cylinder 1210, and the same positioning rod 1209 is inserted into the two insert cylinders 1210. A through hole is opened on one side of the pull block 1203, and the positioning rod 1209 passes through the through hole. The inner wall of the dust filter cartridge 1201 close to the fixed ring frame 1212 is fixedly connected with a fine filter screen 1214, and the fine filter screen 1214 is in contact with the outer wall of the fixed ring frame 1212. The fixed ring frame 1212 is located between the mesh plate 1208 and the fine filter screen 1214. The inner wall of the dust filter cartridge 1201 close to the mesh plate 1208 is annularly distributed with elastic connecting rods 1206, and the end of each elastic connecting rod 1206 is fixedly connected with a collision block 1205.

[0038] In a specific application scenario, when collecting indoor air, the air pump 10 is started, and the air pump 10 guides the air into the dust filter cartridge 1201. The air carries a large impact force when entering the dust filter cartridge 1201, and the impact force drives the mesh plate 1208 to move toward the fine filter 1214. At the same time, the air drives the impact block 1205 on the elastic connecting rod 1206 to impact the mesh plate 1208, thereby transmitting the vibration to the fine filter 1214, and accelerating the falling of dust attached to the fine filter 1214 by vibration. The fallen dust is collected by the sticky net 1213, thereby avoiding dust blocking the passage of air. When the air dust filtration operation is realized, the passage of air is accelerated, and the formaldehyde determination efficiency is improved.

[0039] Specifically, after the sticky net 1213 inside the fixed ring frame 1212 has been used for a period of time, the positioning rod 1209 is removed, and the pull block 1203 is pulled to remove the fixed ring frame 1212 from the dust filter cartridge 1201 and replace it. After replacement, it is reinserted between the mesh plate 1208 and the fine filter 1214 to ensure that the sticky net 1213 has the best adhesion effect on dust.

[0040] It should be noted that there is a gap between the sticky net 1213 and the fine filter 1214. When the dust attached to the fine filter 1214 falls off due to vibration, it falls into the fixed ring frame 1212 and is adsorbed by the sticky net 1213. When the air passes through the air holes on the sticky net 1213, part of the dust carried has been adsorbed. The sticky net 1213 plays a preliminary dust filtering effect, further improving the air dust filtering effect, ensuring that the air passing through the fine filter 1214 does not carry dust, and improving the accuracy of the formaldehyde detection results.

[0041] Reference Figure 1 , Figure 2 , Fig.10 and Fig.11 In a preferred embodiment, a sliding block 105 is slidably connected to the directional rail 101, and a mounting seat 108 is fixedly connected to the top of the sliding block 105. A side of the directional rail 101 away from the mounting seat 108 is fixedly connected to a shaft frame 102, and a forward and reverse motor 106 is fixedly connected to one side of the shaft frame 102. The output shaft of the forward and reverse motor 106 is fixedly connected to a rotating shaft 107 through a coupling, and one end of the rotating shaft 107 is connected to an inner wall of one side of the shaft frame 102 through a bearing. A winding roller 103 is fixedly connected to the outer side of the rotating shaft 107, and a positioning guide rope 104 is wound around the outer side of the winding roller 103. One end of the positioning guide rope 104 The end is fixedly connected to one side of the mounting base 108, a motor slot is opened on the top of the mounting base 108, and a driving motor 113 is fixedly connected inside the motor slot, the output shaft of the driving motor 113 is fixedly connected to the rotating shaft 111 through a coupling, the top of the rotating shaft 111 is fixedly connected to the base 7, a heat dissipation hole 109 is opened on the side of the mounting base 108 close to the motor slot, and the heat dissipation hole 109 is communicated with the motor slot, the mounting base 108 is located on the outside of the driving motor 113 and an annular reinforcement groove 110 is opened, and a reinforcement slide bar 112 is equidistantly slidably connected inside the annular reinforcement groove 110, and the reinforcement slide bar 112 is fixedly connected to the bottom of the base 7.

[0042] It should be noted that when conducting indoor formaldehyde measurement, the directional rail 101 is placed indoors. During the process of introducing air into the detection tube 2, the drive motor 113 and the forward and reverse motor 106 are started. The drive motor 113 drives the gas arc cover 3 to rotate, and the forward and reverse motor 106 reels the positioning guide rope 104, thereby driving the sliding block 105 to slide in the directional rail 101. In this way, air collection at different positions in the room is achieved, thereby realizing multi-position formaldehyde content measurement, thereby improving the use value of the formaldehyde rapid measurement device.

[0043] Reference Figure 1-Figure 4 In a preferred embodiment, both ends of the top of the base 7 are fixedly connected with mounting rods 9, and the same side of the two mounting rods 9 is fixedly connected with the same gas collecting arc hood 3, and the outer wall of the gas collecting arc hood 3 away from the dust filter cylinder 1201 is provided with a gas collecting hole 4, and the top of the base 7 is fixedly connected with a lifting block 8, and the top of the lifting block 8 is fixedly connected with a detection cylinder 2, and the port of the detection cylinder 2 facing the gas collecting arc hood 3 is fixedly connected with a pump ring frame, and the inside of the pump ring frame is fixedly connected with an air pump 10, and the air inlet end of the air pump 10 is fixedly connected with an exhaust pipe 5, one end of the exhaust pipe 5 is inserted into the inside of the gas collecting arc hood 3, the dust filter cylinder 1201 is fixedly connected to the inner wall of the detection cylinder 2, and the air delivery end of the air pump 10 is fixedly connected with an air guide pipe 11, one end of the air guide pipe 11 is inserted into the inside of the dust filter cylinder 1201, and the outer wall of the detection cylinder 2 facing upward is provided with a fitting hole, and the width of the fitting hole is the same as the width of the groove 1202, and the fitting hole and the groove 1202 are overlapped.

[0044] Reference Figure 1 , Figure 5 , Figure 7 , Figure 8 and Fig. 9In a preferred embodiment, a loading and unloading cleaning component 6 is provided at one end of the detection cylinder 2 away from the gas arc hood 3, and the loading and unloading cleaning component 6 includes a mounting sleeve 601, a mounting hole is opened at one end of the dust filter cylinder 1201 away from the gas arc hood 3, the mounting sleeve 601 is fixedly connected to the inside of the mounting hole, a dust collecting ring pipe 607 is fixedly connected to one side of the mounting sleeve 601 located in the dust filter cylinder 1201, a dust collecting hole 606 is opened on the outer wall of the dust collecting ring pipe 607 facing the center point of the mounting sleeve 601, a dust suction pump 603 and a dust collecting box 602 are fixedly connected to the outer wall of the detection cylinder 2 facing upward, a dust suction end of the dust suction pump 603 is fixedly connected to a dust suction pipe 604, one end of the dust suction pipe 604 is plugged into the inside of the dust collecting ring pipe 607, and the dust conveying The end is connected to the interior of the dust collecting box 602 through a pipe, and the inner side of the end of the mounting sleeve 601 close to the dust collecting ring tube 607 is fixedly connected with an annular limit rail 610, and the inner side of the annular limit rail 610 is slidably connected with a limit slide bar 605 at equal distances, and the ends of multiple annular limit slide bars 605 are fixedly connected to the same rotating ring frame 608, and the outer side wall of the rotating ring frame 608 is fixedly connected with a matching toothed disc 609, and the inner side wall of the rotating ring frame 608 is provided with bristles 614, and one side of the mounting sleeve 601 is fixedly connected with a driving motor 2 613, and the output shaft of the driving motor 2 613 is fixedly connected with a driving shaft 611 through a coupling, and the outer side of the driving shaft 611 is fixedly connected with a driving toothed disc 612, and the driving toothed disc 612 and the matching toothed disc 609 are meshed.

[0045] Specifically, when the formaldehyde sensor body 13 is loaded and unloaded, the driving motor 2 613 is started, and the driving motor 2 613 drives the bristles 614 on the rotating ring frame 608 to clean the detection port of the formaldehyde sensor body 13 passing through the installation sleeve 601. During the cleaning process, the dust suction pump 603 is started, and the dust suction pump 603 collects and processes the dust brushed off through the dust collecting holes 606 on the dust collecting ring tube 607 to prevent the dust from being retained in the dust filter cylinder 1201 and causing pollution, thereby eliminating dust adhesion during the loading and unloading process of the formaldehyde sensor body 13, and further improving the accuracy of the measurement results of the formaldehyde sensor body 13.

[0046] Reference Figure 1 , Figure 8 and Fig. 9 In a preferred embodiment, an embedded guide rail 16 is provided in an annular shape on the inner side wall of the mounting sleeve 601 away from the dust collecting ring tube 607, and a plurality of embedded guide rails 16 are slidably connected to the same sealing slide plate 15 inside, the sealing slide plate 15 is in contact with the inner wall of the mounting sleeve 601, and a mounting ring 14 is fixedly connected to the inner side wall of the sealing slide plate 15, and a formaldehyde sensor body 13 is fixedly connected to the inside of the mounting ring 14, and the formaldehyde sensor body 13 is in contact with the bristles 614, and a pulling rod 17 is fixedly connected to the side of the mounting ring 14 facing the open end of the mounting sleeve 601.

[0047] The method for rapid determination of formaldehyde in indoor air, using the rapid determination device for formaldehyde in indoor air as described above, comprises the following steps:

[0048] Step 1: First, install the formaldehyde sensor body 13, slide the outer sealing slide plate 15 into each embedded guide rail 16, and during the loading process, start the second drive motor 613, and the second drive motor 613 drives the bristles 614 on the rotating ring frame 608 to clean the detection port of the formaldehyde sensor body 13 passing through the inside of the installation sleeve 601. During the cleaning process, start the dust suction pump 603, and the dust suction pump 603 collects and processes the dust brushed off through the dust collecting holes 606 on the dust collecting ring tube 607;

[0049] Step 2: After the formaldehyde sensor body 13 is installed, during the air collection process, the drive motor 113 and the forward and reverse motor 106 are started, the drive motor 113 drives the gas arc cover 3 to rotate, and the forward and reverse motor 106 reels the positioning guide rope 104, thereby driving the sliding block 105 to slide in the directional rail 101, and in this way, air collection at different positions in the room is achieved;

[0050] Step three: After the air is introduced into the detection tube 2, the air carries a large impact force when entering the dust filter tube 1201. The impact force drives the mesh plate 1208 to move toward the fine filter 1214. At the same time, the air drives the impact block 1205 on the elastic connecting rod 1206 to impact the mesh plate 1208, thereby transmitting the vibration to the fine filter 1214, and accelerating the dust attached to the fine filter 1214 to fall off by vibration. The fallen dust is collected by the sticky net 1213, and the air enters the formaldehyde sensor body 13 to start the formaldehyde content measurement.

[0051] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A rapid determination device for formaldehyde in indoor air, comprising a mobile component (1) and a dust collection component (12), characterized in that: The movable assembly (1) comprises a directional rail (101) and a mounting seat (108), and the dust filter collection assembly (12) comprises a dust filter cartridge (1201), the interior of the dust filter cartridge (1201) is provided with a movable groove (1204) in an annular shape, and the interior of each movable groove (1204) is slidably connected to a movable slider (1207), and the outer side walls of the plurality of movable sliders (1207) are fixedly connected to the same mesh plate (1208), and the dust filter cartridge (1201) is provided with a movable groove (1204) in an annular shape. The outer wall of the cylinder (1201) close to the mesh plate (1208) is provided with a groove (1202), a pull block (1203) is inserted into the groove (1202), a fixed ring frame (1212) is fixedly connected to the outer wall of the pull block (1203) facing downward, a sticky net (1213) is provided inside the fixed ring frame (1212), one side of the pull block (1203) is fixedly connected to an arc-shaped pressing sheet (1211), and the arc-shaped pressing sheet (1211) is fixedly connected to the outer wall of the pull block (1203) facing downward. 11) fits with the outer wall of the dust filter cartridge (1201), the outer walls of the dust filter cartridge (1201) at both ends of the pull block (1203) are fixedly connected with plug-in cartridges (1210), the interiors of the two plug-in cartridges (1210) are plugged with the same positioning plug-in rod (1209), one side of the pull block (1203) is provided with a through hole, the positioning plug-in rod (1209) passes through the through hole, the inner wall of the dust filter cartridge (1201) close to the fixed ring frame (1212) A fine filter (1214) is fixedly connected, and the fine filter (1214) contacts the outer wall of the fixed ring frame (1212), and the fixed ring frame (1212) is located between the mesh plate (1208) and the fine filter (1214), and elastic connecting rods (1206) are distributed in an annular manner on the inner wall of the dust filter cylinder (1201) close to the mesh plate (1208), and the end of each elastic connecting rod (1206) is fixedly connected to an impact block (1205).

2. The rapid determination device for formaldehyde in indoor air according to claim 1, characterized in that: The directional rail (101) is slidably connected to a sliding block (105), and the mounting seat (108) is fixedly connected to the top of the sliding block (105); a side of the directional rail (101) away from the mounting seat (108) is fixedly connected to an axis frame (102); a side of the axis frame (102) is fixedly connected to a forward and reverse motor (106); an output shaft of the forward and reverse motor (106) is fixedly connected to a rotating shaft (107) via a coupling; one end of the rotating shaft (107) is connected to an inner wall of one side of the axis frame (102) via a bearing; a winding roller (103) is fixedly connected to the outer side of the rotating shaft (107); a positioning guide rope (104) is wound around the outer side of the winding roller (103); and one end of the positioning guide rope (104) is fixedly connected to one side of the mounting seat (108).

3. The rapid determination device for formaldehyde in indoor air according to claim 2, characterized in that: A motor slot is formed on the top of the mounting seat (108), and a driving motor (113) is fixedly connected inside the motor slot. The output shaft of the driving motor (113) is fixedly connected to a rotating shaft (111) via a coupling, and the top of the rotating shaft (111) is fixedly connected to a base (7).

4. The rapid determination device for formaldehyde in indoor air according to claim 3, characterized in that: A heat dissipation hole (109) is provided on one side of the mounting seat (108) close to the motor slot, and the heat dissipation hole (109) is communicated with the motor slot. An annular reinforcement groove (110) is provided on the mounting seat (108) at the outer side of the driving motor (113), and a reinforcement slide bar (112) is equidistantly slidably connected inside the annular reinforcement groove (110), and the reinforcement slide bar (112) is fixedly connected to the bottom of the base (7).

5. The rapid determination device for formaldehyde in indoor air according to claim 4, characterized in that: Both ends of the top of the base (7) are fixedly connected to mounting rods (9), and the same side of the two mounting rods (9) is fixedly connected to the same gas collecting arc hood (3), and the outer wall of the gas collecting arc hood (3) away from the dust filter cylinder (1201) is provided with a gas collecting hole (4), and the top of the base (7) is fixedly connected to a lifting block (8), and the top of the lifting block (8) is fixedly connected to a detection cylinder (2).

6. The rapid determination device for formaldehyde in indoor air according to claim 5, characterized in that: The detection cylinder (2) is fixedly connected to a pump ring frame at the port facing the gas arc hood (3), and the inside of the pump ring frame is fixedly connected to an air pump (10), the air inlet end of the air pump (10) is fixedly connected to an exhaust pipe (5), one end of the exhaust pipe (5) is plugged into the inside of the gas arc hood (3), the dust filter cylinder (1201) is fixedly connected to the inner wall of the detection cylinder (2), the air delivery end of the air pump (10) is fixedly connected to an air guide pipe (11), one end of the air guide pipe (11) is plugged into the inside of the dust filter cylinder (1201), and a fitting hole is opened on the outer side wall of the detection cylinder (2) facing upward, the width of the fitting hole is the same as the width of the groove (1202), and the fitting hole and the groove (1202) are overlapped.

7. The rapid determination device for formaldehyde in indoor air according to claim 6, characterized in that: The end of the detection cylinder (2) away from the gas arc hood (3) is provided with a loading and unloading cleaning assembly (6), and the loading and unloading cleaning assembly (6) includes a mounting sleeve (601), and the end of the dust filter cylinder (1201) away from the gas arc hood (3) is provided with a mounting hole, and the mounting sleeve (601) is fixedly connected to the inside of the mounting hole, and the side of the mounting sleeve (601) located inside the dust filter cylinder (1201) is fixedly connected to a dust collecting ring pipe (607), and the dust collecting ring pipe (607) A dust collecting hole (606) is formed on the outer wall facing the center point of the installation sleeve (601); a dust suction pump (603) and a dust collecting box (602) are fixedly connected to the outer wall of the detection tube (2) facing upward; a dust suction end of the dust suction pump (603) is fixedly connected to a dust suction pipe (604); one end of the dust suction pipe (604) is inserted into the interior of the dust collecting ring pipe (607); and a dust conveying end of the dust suction pump (603) is connected to the interior of the dust collecting box (602) through a pipeline.

8. The rapid determination device for formaldehyde in indoor air according to claim 7, characterized in that: The inner side of the end of the installation sleeve (601) close to the dust collecting ring tube (607) is fixedly connected with an annular limit rail (610), and the inner side of the annular limit rail (610) is equidistantly slidably connected with a limit slide bar (605), and the ends of the plurality of annular limit slide bars (605) are fixedly connected with the same rotating ring frame (608), and the outer side wall of the rotating ring frame (608) is fixedly connected with a matching toothed disc (609), and the inner side wall of the rotating ring frame (608) is provided with bristles (614), and one side of the installation sleeve (601) is fixedly connected with a second drive motor (613), and the output shaft of the second drive motor (613) is fixedly connected with a driving shaft (611) through a coupling, and the outer side of the driving shaft (611) is fixedly connected with a driving toothed disc (612), and the driving toothed disc (612) and the matching toothed disc (609) are meshed.

9. The rapid determination device for formaldehyde in indoor air according to claim 8, characterized in that: The inner side wall of the installation sleeve (601) away from the dust collecting ring tube (607) is provided with an embedded guide rail (16) in an annular shape, and the inner sides of the multiple embedded guide rails (16) are slidably connected to the same sealing slide plate (15), the sealing slide plate (15) is in contact with the inner wall of the installation sleeve (601), the inner side wall of the sealing slide plate (15) is fixedly connected to a mounting ring (14), the inside of the mounting ring (14) is fixedly connected to a formaldehyde sensor body (13), the formaldehyde sensor body (13) is in contact with the bristles (614), and the side of the installation ring (14) facing the opening end of the installation sleeve (601) is fixedly connected to a pulling rod (17).

10. A method for rapidly determining formaldehyde in indoor air, using the device for rapidly determining formaldehyde in indoor air as claimed in claim 9, characterized in that: The following steps are involved: Step 1: First, the formaldehyde sensor body (13) is installed, and the sealing slide plate (15) on the outside thereof is slid into each embedded guide rail (16). During the loading process, the second drive motor (613) is started, and the second drive motor (613) drives the bristles (614) on the rotating ring frame (608) to clean the detection port of the formaldehyde sensor body (13) passing through the inside of the installation sleeve (601). During the cleaning process, the dust suction pump (603) is started, and the dust suction pump (603) collects and processes the dust brushed off through the dust collecting holes (606) on the dust collecting ring tube (607); Step 2: After the formaldehyde sensor body (13) is installed, during the air collection process, the drive motor 1 (113) and the forward and reverse motor (106) are started, the drive motor 1 (113) drives the gas arc cover (3) to rotate, and the forward and reverse motor (106) reels the positioning guide rope (104), thereby driving the sliding block (105) to slide in the directional rail (101), and in this way, air collection at different positions in the room is achieved; Step 3: After the air is introduced into the detection tube (2), it carries a large impact force when entering the dust filter tube (1201). The impact force drives the mesh plate (1208) to move toward the fine filter (1214). At the same time, the air drives the impact block (1205) on the elastic connecting rod (1206) to impact the mesh plate (1208), thereby transmitting the vibration to the fine filter (1214). The dust attached to the fine filter (1214) is accelerated to fall off by vibration. The fallen dust is collected by the sticky net (1213). The air enters the formaldehyde sensor body (13) and starts to measure the formaldehyde content.

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