Environment detection device

Abstract

The invention discloses an environment detection device, and belongs to the field of environment detection, the environment detection device is mainly composed of a shell, a control mechanism and a working unit, the working unit comprises a sampling assembly, an absorption box, a transmission mechanism and a turnover mechanism; the turnover mechanism can be switched between an unfolded state and a folded state; the sampling mechanism can be switched among an open state, a closed state and an exhaust state; the transmission mechanism can work at a contraction working position and an extension working position; the control mechanism can drive the transmission mechanism to change the working position and can drive the sampling mechanism to change the working state; when the transmission mechanism is in the contraction working position, the sampling mechanism is in an open state, and the turnover mechanism is in an unfolded state; when the transmission mechanism is in the extending working position, the sampling mechanism is in a closed state, and the turnover mechanism is in a closed state; the accuracy of the formaldehyde concentration in the sample is guaranteed, pipeline disassembly can be avoided, and manpower is saved; meanwhile, no residue is generated, troublesome cleaning is not needed, and subsequent use is not affected.

Description

Technical Field

[0001] The invention belongs to the technical field of environmental detection, and in particular relates to an environmental detection device. Background Art

[0002] Volatile organic compounds are a type of volatile substances that pollute the air. The main volatile organic compounds in the room are formaldehyde, benzene, naphthalene, trichloroethylene, etc., and their main sources are organic solvents and adhesives in interior decoration materials and building materials. Before people move into a new house, they usually use an environmental detection device to sample the indoor air and perform optical detection on the samples to assess whether it is suitable for living. However, in the existing technology, the environmental detection device still has the following problems when used:

[0003] 1. At present, most environmental detection devices generally use an air pump to suck air from the environment into the device when sampling air, and then pass it into water to dissolve formaldehyde, and then use a high-precision optical detector to optically detect the water containing dissolved formaldehyde to finally determine the formaldehyde content. However, due to the suction of the air pump, the air around the air inlet will be supplemented, and the air discharged by the air pump will also reduce the concentration of formaldehyde, resulting in inaccurate test results;

[0004] 2. At present, when the environmental detection device is taking samples, it is generally necessary to set up the detection device indoors, and then tightly connect the pipelines required by the device. After the air extraction is completed, the pipeline needs to be disassembled and replaced with a new pipe before the next location of the air extraction test can be carried out. This can prevent the air in the pipeline from affecting subsequent sampling and ensure the accuracy of sampling. However, disassembling the pipeline is more troublesome and requires a lot of manpower. Summary of the invention

[0005] Based on this, it is necessary to provide an environment detection device to solve the above problems.

[0006] On the one hand, the present application provides an environment detection device, which includes: a shell, a control mechanism and a working unit; the working unit is arranged on the shell, and the working unit includes: a sampling mechanism, an absorption box, a transmission mechanism and a flipping mechanism; the flipping mechanism is arranged on the shell, and the flipping mechanism can be switched between an unfolded state and a folded state; the absorption box is detachably arranged in the flipping mechanism; the sampling mechanism is arranged in the shell, and the sampling mechanism can be switched between an open state, a closed state and an exhaust state; the transmission mechanism is arranged on the lower side of the shell, and the transmission mechanism can work in a retracted working position and an extended working position; The control mechanism is arranged in the shell, and the control mechanism can drive the transmission mechanism to change the working position, and the control mechanism can drive the sampling mechanism to change the working state; when the control mechanism drives the transmission mechanism to change to the retracted working position, the transmission mechanism drives the sampling mechanism to change to the open state, and drives the flip mechanism to switch to the unfolded state; when the control mechanism drives the transmission mechanism to change to the extended working position, the transmission mechanism drives the sampling mechanism to change to the closed state, and drives the flip mechanism to change to the closed state; the control mechanism can drive the sampling mechanism to switch from the closed state to the exhaust state.

[0007] According to a favorable embodiment, the flipping mechanism includes: a vertical plate frame, a flipping disk, a transmission rod and a flipping spring; the vertical plate frame is fixedly connected to the shell, the vertical plate frame is provided with a vertical plate air hole, and the lower side of the vertical plate frame is provided with a vertical plate slide groove; the flipping disk is rotatably connected to the vertical plate frame, and the flipping disk is provided with a flipping disk groove; the transmission rod is slidably arranged on the lower side of the vertical plate frame along the horizontal direction, and the transmission rod is provided with a transmission rod pin, and the transmission rod pin and the flipping disk groove are slidably matched; the flipping spring is sleeved on the transmission rod to drive the transmission rod to move in the direction of the axis of the shell.

[0008] According to a favorable embodiment, the absorption box includes: a box body, a piston, a box plate and a box spring; the box body is detachably arranged in the flip disk, and the box body is provided with a box body hole; the piston is slidably arranged in the box body, a piston cavity is formed between the piston and the box body, and the piston cavity is connected to the box body hole; the box plate is slidably connected to the box body, and a box plate hole is provided on the box plate, and the box plate can be switched between an upper position and a lower position, and when the box plate is in the upper position, the box plate disconnects the box body hole and the box plate hole, and when the box plate is in the lower position, the box plate hole is connected to the box body hole; the box spring is arranged on the box body to drive the box plate to move in the upward direction.

[0009] According to a favorable embodiment, the sampling mechanism includes: a sampling rod, a sampling frame, a rubber membrane, a sampling slide and a sampling spring; the sampling frame is slidably arranged in the vertical plate frame along the horizontal direction, and a frame slider is provided on the lower side of the sampling frame, and the frame slider and the vertical plate slide groove are slidably matched; the rubber membrane is fixedly arranged in the sampling frame; the sampling rod is slidably arranged on the shell along the horizontal direction, one end of the sampling rod is fixedly connected to the rubber membrane, and the sampling rod is provided with a rod annular groove; the sampling slide is slidably arranged in the shell along the vertical direction, and a slide groove is provided on the sampling slide, the sampling rod passes through the slide groove, and the sampling slide can be extended into the rod annular groove; the sampling spring is arranged in the shell to drive the sampling slide to slide into the rod annular groove.

[0010] According to a favorable embodiment, the transmission mechanism includes: a first transmission rod, a second transmission rod, a tension spring, a transmission disk, a steel ball, a transmission paddle, a limit ring and a limit pin group; the limit ring is fixedly arranged on the lower side of the shell, the limit ring is provided with a first limit plane and a second limit plane, and the limit ring is provided with a limit ring groove; the limit pin group is fixedly arranged in the shell, and the limit pin group includes a first limit pin and a second limit pin; one end of the first transmission rod is rotatably arranged in the limit ring, the first transmission rod is located between the first limit plane and the second limit plane, and the first transmission rod is provided with a transmission hole; one end of the second transmission rod is hinged to the other end of the first transmission rod, and the other end of the second transmission rod is hinged to the frame slider; the tension spring It is arranged on the lower side of the shell to drive the first transmission rod to swing towards the direction close to the first limiting plane; the transmission disk is rotatably arranged in the first transmission rod, and a transmission disk groove is provided on the transmission disk; the steel ball is slidably arranged in the transmission hole, and when the steel ball is in the limiting ring groove, the steel ball connects the first transmission rod and the limiting ring together, and when the steel ball is in the transmission disk groove, the steel ball connects the first transmission rod and the transmission disk together; the transmission paddle is rotatably arranged in the shell, and the transmission paddle is fixedly connected to the transmission disk, and a first paddle rod and a second paddle rod are provided on the transmission paddle, and the first paddle rod and the second paddle rod are located between the first limiting pin and the second limiting pin.

[0011] According to a favorable embodiment, the control mechanism includes: a control disk, a control spring, a control shaft, a first pawl, a second pawl, a first spring leaf and a second spring leaf; the control disk is rotatably connected to the inner shell, and a control ring is provided on the control disk; the control spring is arranged in the inner shell, driving the control disk to move upward; the control shaft is rotatably arranged in the inner shell, and the control shaft and the control disk are connected by a flat key; the first pawl is rotatably arranged on the control shaft; the second pawl is rotatably arranged on the control shaft, and the first pawl and the second pawl are symmetrical to each other; the first spring leaf is arranged in the control shaft, for driving the first pawl to rotate away from the control shaft; the second spring leaf is arranged in the control shaft, for driving the second pawl to rotate away from the control shaft.

[0012] According to an advantageous embodiment, the working units are provided in a plurality of groups, which are evenly distributed in the housing along a circumferential direction.

[0013] In summary, the present invention includes at least one of the following beneficial effects:

[0014] 1. By setting up a rubber membrane, it is not necessary to use a pump to extract air for sampling. Instead, the air at the sampling point is directly trapped by the deformation of the rubber membrane to avoid filling with surrounding air, thus ensuring the accuracy of the formaldehyde concentration in the sample air;

[0015] 2. By setting up the sampling mechanism, the vertical plate frame and the absorption box, when the sampled air is discharged into the absorption box, it does not need to pass through the pipeline, but only needs to pass through the vertical plate air holes on the vertical plate frame, thus avoiding the need to disassemble the pipeline and saving manpower;

[0016] 3. By setting up the sampling mechanism, when the sampling mechanism is in the open state, the side of the rubber membrane that contacts the sampling air is turned out. After the test is completed, just place the device in a ventilated place to allow the formaldehyde remaining in the pores of the rubber membrane and the vertical plate to evaporate quickly without any residue, without the need for troublesome cleaning, and without affecting subsequent use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A three-dimensional view of the present invention;

[0018] Figure 2 For the present invention Figure 1 Sectional view in the AA direction;

[0019] Figure 3 For the present invention Figure 1 Cross-sectional view in the BB direction;

[0020] Figure 4 For the present invention Figure 1 Cross-sectional view in CC direction;

[0021] Figure 5 For the present invention Figure 1 The enlarged image at point I in the middle;

[0022] Figure 6 For the present invention Figure 1 Enlarged view of II in the middle;

[0023] Figure 7 For the present invention Figure 3 Enlarged view of point III in the middle;

[0024] Figure 8 For the present invention Figure 4 Enlarged view of IV in the middle;

[0025] Fig. 9 For the present invention Figure 8 Cross-sectional view in the middle DD direction;

[0026] Fig.10 When the present invention is in the initial state Figure 1 Sectional view in the AA direction;

[0027] Fig.11 When the present invention is in the initial state Figure 1 Cross-sectional view along CC direction. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0029] like Figure 1-Figure 11As shown, an environment detection device, this embodiment includes: a shell 1, a control mechanism 2 and a working unit; the working unit is arranged on the shell 1, and the working unit includes: a sampling mechanism 3, an absorption box 4, a transmission mechanism 5 and a flip mechanism 6; the flip mechanism 6 is arranged on the shell 1, and the flip mechanism 6 can be switched between an unfolded state and a closed state; the absorption box 4 is detachably arranged in the flip mechanism 6; the sampling mechanism 3 is arranged in the shell 1, and the sampling mechanism 3 can be switched between an open state, a closed state and an exhaust state; the transmission mechanism 5 is arranged on the lower side of the shell 1, and the transmission mechanism 5 can work in a retracted working position and an extended working position operation; the control mechanism 2 is arranged in the shell 1, and the control mechanism 2 can drive the transmission mechanism 5 to change the working position, and the control mechanism 2 can drive the sampling mechanism 3 to change the working state; when the control mechanism 2 drives the transmission mechanism 5 to change to the retracted working position, the transmission mechanism 5 drives the sampling mechanism 3 to change to the open state, and drives the flip mechanism 6 to switch to the unfolded state; when the control mechanism 2 drives the transmission mechanism 5 to change to the extended working position, the transmission mechanism 5 drives the sampling mechanism 3 to change to the closed state, and drives the flip mechanism 6 to change to the closed state; the control mechanism 2 can drive the sampling mechanism 3 to switch from the closed state to the exhaust state.

[0030] like Figure 1-Figure 3 , Fig.10 As shown, the flip mechanism 6 includes: a vertical plate frame 61, a flip disk 62, a transmission rod 63 and a flip spring 64; the vertical plate frame 61 is fixedly connected to the shell 1, the vertical plate frame 61 is provided with a vertical plate air hole 611, and the lower side of the vertical plate frame 61 is provided with a vertical plate slide groove 612; the flip disk 62 is rotatably connected to the vertical plate frame 61, and the flip disk 62 is provided with a flip disk groove 621; the transmission rod 63 is slidably arranged on the lower side of the vertical plate frame 61 in the horizontal direction, and the transmission rod 63 is provided with a transmission rod pin 631, and the transmission rod pin 631 and the flip disk groove 621 are slidably matched; the flip spring 64 is sleeved on the transmission rod 63 to drive the transmission rod 63 to move toward the axial direction of the shell 1.

[0031] like Figure 1 , Figure 2 , Figure 6 , Fig.10 As shown, the absorption box 4 includes: a box body 41, a piston 42, a box plate 43 and a box spring 44; the box body 41 is detachably arranged in the flip disk 62, and a box body hole 411 is arranged on the box body 41; the piston 42 is slidably arranged in the box body 41, and a piston chamber 412 is formed between the piston 42 and the box body 41, and the piston chamber 412 is communicated with the box body hole 411; the box plate 43 is slidably connected to the box body 41, and a box plate hole 431 is arranged on the box plate 43, and the box plate 43 can be switched between an upper position and a lower position. When the box plate 43 is in the upper position, the box plate 43 disconnects the box body hole 411 and the box plate hole 431, and when the box plate 43 is in the lower position, the box plate hole 431 is communicated with the box body hole 411; the box spring 44 is arranged on the box body 41 to drive the box plate 43 to move in the upward direction.

[0032] like Figure 1 , Figure 2 , Figure 5 , Fig.10 As shown, the sampling mechanism 3 includes: a sampling rod 31, a sampling frame 32, a rubber membrane 33, a sampling slide 34 and a sampling spring 35; the sampling frame 32 is slidably arranged in the vertical plate frame 61 along the horizontal direction, and a frame slider 321 is provided on the lower side of the sampling frame 32, and the frame slider 321 and the vertical plate slide groove 612 are slidably matched; the rubber membrane 33 is fixedly arranged in the sampling frame 32; the sampling rod 31 is slidably arranged on the shell 1 along the horizontal direction, one end of the sampling rod 31 is fixedly connected to the rubber membrane 33, and a rod annular groove 311 is provided on the sampling rod 31; the sampling slide 34 is slidably arranged in the shell 1 along the vertical direction, and a slide groove 341 is provided on the sampling slide 34, the sampling rod 31 passes through the slide groove 341, and the sampling slide 34 can extend into the rod annular groove 311; the sampling spring 35 is arranged in the shell 1, and is used to drive the sampling slide 34 to slide into the rod annular groove 311.

[0033] In specific operation, by setting the rubber membrane 33, when sampling, there is no need to use a pump to extract air for sampling. Instead, the air at the sampling point is directly trapped by the deformation of the rubber membrane 33 to avoid filling with surrounding air, thereby ensuring the accuracy of formaldehyde concentration in the air.

[0034] like Figure 1 , Figure 3 , Figure 4 , Figure 7-Figure 11As shown, the transmission mechanism 5 includes: a first transmission rod 51, a second transmission rod 52, a tension spring 53, a transmission disk 54, a steel ball 55, a transmission paddle 56, a limit ring 57 and a limit pin group 58; the limit ring 57 is fixedly arranged on the lower side of the housing 1, and a first limit plane 571 and a second limit plane 572 are provided on the limit ring 57, and a limit ring groove 573 is provided in the limit ring 57; the limit pin group 58 is fixedly arranged in the housing 1, and the limit pin group 58 includes a first limit pin 581 and a second limit pin 582; one end of the first transmission rod 51 is rotatably arranged in the limit ring 57, the first transmission rod 51 is located between the first limit plane 571 and the second limit plane 572, and a transmission hole 511 is provided on the first transmission rod 51; one end of the second transmission rod 52 is hinged to the other end of the first transmission rod 51, and the other end of the second transmission rod 52 is hinged to the frame slider 321 The tension spring 53 is arranged at the lower side of the shell 1 to drive the first transmission rod 51 to swing towards the direction close to the first limiting plane 571; the transmission disk 54 is rotatably arranged in the first transmission rod 51, and a transmission disk groove 541 is provided on the transmission disk 54; the steel ball 55 is slidably arranged in the transmission hole 511, and when the steel ball 55 is in the limiting ring groove 583, the steel ball 55 connects the first transmission rod 51 and the limiting ring 57 together, and when the steel ball 55 is in the transmission disk groove 541, the steel ball 55 connects the first transmission rod 51 and the transmission disk 54 together; the transmission paddle 56 is rotatably arranged in the shell 1, and the transmission paddle 56 is fixedly connected to the transmission disk 54, and a first paddle rod 561 and a second paddle rod 562 are provided on the transmission paddle 56, and the first paddle rod 561 and the second paddle rod 562 are located between the first limiting pin 581 and the second limiting pin 582.

[0035] In specific operation, by setting up the sampling mechanism 3, the vertical plate frame 61 and the absorption box 4, when the sampled air is discharged into the absorption box 4, it does not need to pass through the pipeline, but only needs to pass through the vertical plate air hole 611 on the vertical plate frame 61, thereby avoiding the disassembly of the pipeline and saving manpower.

[0036] like Figure 1-Figure 3 , Figure 7 , Fig.10As shown, the control mechanism 2 includes: a control disk 21, a control spring 22, a control shaft 23, a first pawl 241, a second pawl 242, a first spring leaf 251 and a second spring leaf 252; the control disk 21 is rotatably connected to the inner shell 11, and a control ring 211 is provided on the control disk 21; the control spring 22 is arranged in the inner shell 11, and drives the control disk 21 to move upward; the control shaft 23 is rotatably arranged in the inner shell 11, and the control shaft 23 and the control disk 21 are connected by a flat key; the first pawl 241 is rotatably arranged on the control shaft 23; the second pawl 242 is rotatably arranged on the control shaft 23, and the first pawl 241 and the second pawl 242 are symmetrical to each other; the first spring leaf 251 is arranged in the control shaft 23, and is used to drive the first pawl 241 to rotate away from the control shaft 23; the second spring leaf 252 is arranged in the control shaft 23, and is used to drive the second pawl 242 to rotate away from the control shaft 23.

[0037] During specific operation, the sampling mechanism 3 is set so that when the sampling mechanism 3 is in an open state, the side of the rubber membrane 33 that contacts the sampling air is turned out. After the detection is completed, the device only needs to be placed in a ventilated place to allow the formaldehyde remaining in the rubber membrane 33 and the vertical plate pores 611 to evaporate quickly without generating any residue, eliminating the need for troublesome cleaning, and not affecting subsequent use.

[0038] like Figure 1-Figure 3 , Fig.10 As shown, there are multiple groups of working units, which are evenly distributed in the housing 1 along the circumferential direction.

[0039] The process and working principle of this environmental detection device for formaldehyde detection are as follows:

[0040] Step 1: Preparation:

[0041] When the present invention is used to detect the formaldehyde content in indoor air, the present invention is first in the initial state, at which time the flip mechanism 6 is in the unfolded state, the sampling mechanism 3 is in the open state, and the transmission mechanism 5 is in the retracted working position. First, all the absorption boxes 4 are removed from the flip disk 62, and the box spring 44 is overcome to push the box plate 43 to the lower position, so that the box plate hole 431 and the box body hole 411 are aligned, and the piston 42 is pushed to move the piston 42 a certain distance, and the volume of the piston chamber 412 increases, and then a proper amount of water is poured into the piston chamber 412, and then the box plate 43 is released, and the box plate 43 is pushed back to the upper position under the action of the box spring 44, thereby blocking the box body hole 411. After adding a proper amount of water to all the absorption boxes 4, all the absorption boxes 4 are placed in the flip disk 62 in turn to complete the preparation work.

[0042] Step 2: Air sampling:

[0043] After the preparation work is completed, the worker needs to carry the device to the room where the air needs to be tested, and then select a sampling point in the room, place the device at the sampling point, and turn the control disk 21. Since the control disk 21 and the control shaft 23 are matched through the flat key, the control shaft 23 is driven to rotate counterclockwise ( Fig.10 In the middle), since the transmission mechanism 5 is in the retracted working position ( Fig.11 ), so that when the control shaft 23 rotates counterclockwise, the second pawl 242 and the first paddle rod 561 are brought into contact, and then the first paddle rod 561 is pushed to drive the transmission paddle 56 to rotate clockwise, so that the first paddle rod 562 and the first limiting pin 581 are separated. Since the transmission paddle 56 and the transmission disk 54 are fixedly connected, the transmission disk 54 is driven to rotate clockwise. At this time, the steel ball 55 is simultaneously in the transmission hole 511 and the transmission disk groove 541. Under the action of the inner wall of the limiting ring 57, the first transmission rod 51 and the transmission disk 54 are connected together, thereby driving the first transmission rod 51 to overcome the tension spring 53 and rotate. One end of the second transmission rod 52 is hinged to the first transmission rod 51, and the other end is hinged to the frame slider 321. The frame slider 321 and the vertical plate slide groove 612 are slidably matched, and then the sampling frame 32 is driven by the second transmission rod 52 to move toward the vertical plate frame 61. Since the sampling slide plate 34 extends into the rod annular groove 311 at this time, the sampling rod 31 is positioned and cannot move, and then the sampling frame 32 drives the rubber membrane 33 to move. When the first transmission rod 51 rotates to align the transmission hole 511 with the limiting ring groove 573, the first transmission rod 51 just contacts the second limiting plane 572, and the transmission disk 54 continues to rotate, driving the steel ball 55 from the transmission plate 54 to the transmission plate 54. The first transmission rod 51 is positioned, and the first paddle rod 561 contacts the second limiting pin 582, and the second pawl 242 passes over the first paddle rod 561, thereby driving a set of transmission mechanisms 5 to switch to the extended working position. At this time, the sampling frame 32 and the vertical plate frame 61 are driven to fit together through the second transmission rod 52. At the same time, since the sampling rod 31 is positioned by the sampling slide plate 34, the rubber is pulled through the sampling plate 31. The membrane 33 is deformed and the sampling mechanism 3 is switched to a closed state, so that a cavity is formed between the rubber membrane 33, the sampling frame 32 and the vertical plate frame 61. At the same time, since the sampling frame 32 and the vertical plate frame 61 are in close contact at this time, the frame slider 321 pushes the transmission rod 63 to overcome the movement of the flip spring 64. Since the transmission rod pin 631 and the flip disk slot 621 are slidingly connected, when the transmission rod 63 drives the transmission rod pin 631 to move, it drives the flip disk 62 to rotate, and then drives the absorption box 4 placed in the flip disk 62 to rotate, so that the absorption box 4 is close to the vertical plate frame 61 and the vertical plate pores 611 are blocked to complete the sampling of the air here.

[0044] Step 3: Multiple sampling:

[0045] After completing the air sampling at one sampling point, the worker needs to carry the device to other sampling points in the room, continue to rotate the control disk 21, and then drive the second ratchet 242 to rotate counterclockwise through the control shaft 23 ( Fig.10 ), and when the first pawl 241 follows the rotation and touches the second paddle rod 562, under the action of the first spring 251, the first pawl 241 rotates and passes over the second paddle rod 562. As the second pawl 242 rotates, it drives the transmission mechanism 5, sampling mechanism 3, flip mechanism 6 and absorption box 4 in the next group of working units to complete the air sampling. After that, the worker needs to carry the equipment to the next sampling point for sampling. After sampling at all sampling points through cyclic work, the control disk 21 rotates one circle, all the transmission mechanisms 5 are switched to the extended working position, all the sampling mechanisms 3 are switched to the closed state, and all the flip mechanisms 6 are switched to the closed state (such as Figure 1-Figure 4 As shown), multiple sampling tasks are completed, and sampling work is completed for the indoor environment where the formaldehyde content needs to be tested.

[0046] Step 4: Aeration and mixing:

[0047] When sampling is completed, the control spring 22 is overcome to push the control disk 21, so that the control disk 21 contacts all the sampling slides 34, and the control ring 211 contacts all the box plates 43, thereby overcoming the sampling spring 35 to push the sampling slide 34 downward, and at the same time overcoming the box spring 44 to push the box plate 43. Since the depth of the rod annular groove 311 is shallow, the sampling slide 34 first exits the rod annular groove 311, and the sampling rod 31 is unlocked. The rubber membrane 33 contracts under its own elastic force to compress the sampled air. When the box plate 43 moves to the lower position, the box plate hole 431 is aligned with the box body hole 411, and the sampled air in each group is compressed by the rubber membrane 33. Under the action of contraction, the formaldehyde enters the piston cavity 412 through the vertical plate air hole 611, the box plate hole 431 and the box body hole 411, and pushes the piston 42 to move, so that the formaldehyde in the sampled air can be dissolved in the water in the piston cavity 412. When the rubber membrane 33 shrinks and is flush with the vertical plate frame 61, all sampling mechanisms 3 are switched to the exhaust state, the control disk 21 is released, and the control disk 21 is pushed to reset under the action of the control spring 22. The sampling slide plate 34 is pressed against the outer circumferential wall of the sampling rod 31 under the action of the sampling spring 35. At the same time, under the action of the box spring 44, the box plate 43 moves to the upper position to block the box body hole 411, completing the inflation and mixing work.

[0048] Step 5: Discharge detection and equipment reset:

[0049] After the gas filling and mixing is completed, the control plate 21 is reversed to drive the control shaft 23 to rotate clockwise, and then the first pawl 241 is driven to rotate through the control shaft 23, so that the first pawl 241 pushes the second paddle rod 562 to drive the transmission paddle 56 to rotate counterclockwise ( Figure 7When the first transmission rod 51 is in contact with the first limiting plane 571, the second transmission rod 52 drives the sampling frame 32 to move away from the vertical plate frame 61, and the sampling rod 31 is driven to move toward the sampling slide plate 34 through the rubber membrane 33. When the rod annular groove 311 and the sampling slide plate 34 are aligned, the sampling slide plate 34 enters the rod annular groove 311 under the action of the sampling spring 35, locks the sampling rod 31, and resets the sampling rod 31. Under the action of the tension spring 53, the second transmission rod 52 drives the sampling frame 32 to continue to move. When the first transmission rod 51 contacts the first limiting plane 571, the transmission mechanism When the air filter 512 is in the closed position, the second air filter 514 is in the closed position, and the second air filter 512 ... Fig.11 As shown), all the sampling mechanisms 3 are switched to the open state, and all the flipping mechanisms 6 are switched to the unfolded state, so that the present invention returns to the initial state, and then all the absorption boxes 4 are removed from the flipping disk 62, and then a high-precision optical detector is used to optically detect the water dissolved with formaldehyde in the absorption box 4, and the formaldehyde content of the air in the sampling room is detected, thereby completing the detection of the indoor environment.

[0050] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An environmental detection device, characterized in that: include: A housing (1), a control mechanism (2) and a working unit; The working unit is arranged on the housing (1), and comprises: a sampling mechanism (3), an absorption box (4), a transmission mechanism (5) and a turning mechanism (6); The flipping mechanism (6) is arranged on the housing (1), and the flipping mechanism (6) can be switched between an unfolded state and a folded state; The absorption box (4) is detachably arranged in the turning mechanism (6); The sampling mechanism (3) is arranged in the housing (1), and the sampling mechanism (3) can be switched between an open state, a closed state and an exhaust state; The transmission mechanism (5) is arranged on the lower side of the housing (1), and the transmission mechanism (5) can operate in a retracted working position and an extended working position; The control mechanism (2) is arranged in the housing (1), and the control mechanism (2) can drive the transmission mechanism (5) to change the working position, and the control mechanism (2) can drive the sampling mechanism (3) to change the working state; When the control mechanism (2) drives the transmission mechanism (5) to change to the retracted working position, the transmission mechanism (5) drives the sampling mechanism (3) to change to the open state, and drives the flip mechanism (6) to switch to the unfolded state; when the control mechanism (2) drives the transmission mechanism (5) to change to the extended working position, the transmission mechanism (5) drives the sampling mechanism (3) to change to the closed state, and drives the flip mechanism (6) to change to the closed state; the control mechanism (2) can drive the sampling mechanism (3) to switch from the closed state to the exhaust state.

2. An environment detection device according to claim 1, characterized in that: The turning mechanism (6) comprises: a vertical plate frame (61), a turning plate (62), a transmission rod (63) and a turning spring (64); The vertical plate frame (61) and the shell (1) are fixedly connected, the vertical plate frame (61) is provided with vertical plate air holes (611), and the lower side of the vertical plate frame (61) is provided with vertical plate sliding grooves (612); The flip plate (62) is rotatably connected to the vertical plate frame (61), and a flip plate groove (621) is provided on the flip plate (62); The transmission rod (63) is slidably arranged on the lower side of the vertical plate frame (61) in the horizontal direction, and a transmission rod pin (631) is provided on the transmission rod (63), and the transmission rod pin (631) and the flip plate groove (621) are slidably matched; The overturn spring (64) is sleeved on the transmission rod (63) to drive the transmission rod (63) to move in the axial direction of the housing (1).

3. An environment detection device according to claim 2, characterized in that: The absorption box (4) comprises: a box body (41), a piston (42), a box plate (43) and a box spring (44); The box body (41) is detachably arranged in the flip plate (62), and a box body hole (411) is provided on the box body (41); The piston (42) is slidably disposed in the box body (41), a piston chamber (412) is formed between the piston (42) and the box body (41), and the piston chamber (412) is communicated with the box body hole (411); The box plate (43) and the box body (41) are slidably connected, and a box plate hole (431) is provided on the box plate (43). The box plate (43) can be switched between an upper position and a lower position. When the box plate (43) is in the upper position, the box plate (43) disconnects the box body hole (411) and the box plate hole (431). When the box plate (43) is in the lower position, the box plate hole (431) is connected to the box body hole (411). The box spring (44) is arranged on the box body (41) to drive the box plate (43) to move in an upward direction.

4. An environment detection device according to claim 3, characterized in that: The sampling mechanism (3) comprises: a sampling rod (31), a sampling frame (32), a rubber membrane (33), a sampling slide plate (34) and a sampling spring (35); The sampling frame (32) is slidably arranged in the vertical plate frame (61) along the horizontal direction, and a frame slider (321) is provided on the lower side of the sampling frame (32), and the frame slider (321) and the vertical plate slide groove (612) are slidably matched; The rubber membrane (33) is fixedly arranged in the sampling frame (32); The sampling rod (31) is slidably arranged on the housing (1) in a horizontal direction, one end of the sampling rod (31) is fixedly connected to the rubber membrane (33), and a rod annular groove (311) is provided on the sampling rod (31); The sampling slide plate (34) is slidably arranged in the housing (1) along the vertical direction, and a slide plate groove (341) is provided on the sampling slide plate (34). The sampling rod (31) passes through the slide plate groove (341), and the sampling slide plate (34) can extend into the rod annular groove (311); The sampling spring (35) is arranged in the housing (1) to drive the sampling slide plate (34) to slide into the rod annular groove (311).

5. An environment detection device according to claim 4, characterized in that: The transmission mechanism (5) comprises: a first transmission rod (51), a second transmission rod (52), a tension spring (53), a transmission disc (54), a steel ball (55), a transmission paddle (56), a limiting ring (57) and a limiting pin group (58); The limiting ring (57) is fixedly arranged on the lower side of the housing (1); a first limiting plane (571) and a second limiting plane (572) are provided on the limiting ring (57); and a limiting ring groove (573) is provided inside the limiting ring (57); The limit pin group (58) is fixedly arranged in the housing (1), and the limit pin group (58) comprises a first limit pin (581) and a second limit pin (582); One end of the first transmission rod (51) is rotatably disposed in the limiting ring (57), the first transmission rod (51) is located between the first limiting plane (571) and the second limiting plane (572), and a transmission hole (511) is provided on the first transmission rod (51); One end of the second transmission rod (52) is hinged to the other end of the first transmission rod (51), and the other end of the second transmission rod (52) is hinged to the frame slider (321); The tension spring (53) is arranged on the lower side of the housing (1) and is used to drive the first transmission rod (51) to swing towards a direction close to the first limiting plane (571); The transmission disc (54) is rotatably disposed inside the first transmission rod (51), and a transmission disc groove (541) is provided on the transmission disc (54); The steel ball (55) is slidably arranged in the transmission hole (511); when the steel ball (55) is in the limiting ring groove (583), the steel ball (55) connects the first power transmission rod (51) and the limiting ring (57) together; when the steel ball (55) is in the transmission disc groove (541), the steel ball (55) connects the first transmission rod (51) and the transmission disc (54) together; The transmission paddle (56) is rotatably arranged in the housing (1); the transmission paddle (56) and the transmission plate (54) are fixedly connected; a first paddle rod (561) and a second paddle rod (562) are provided on the transmission paddle (56); the first paddle rod (561) and the second paddle rod (562) are located between the first limit pin (581) and the second limit pin (582).

6. An environment detection device according to claim 5, characterized in that: The control mechanism (2) comprises: a control disk (21), a control spring (22), a control shaft (23), a first pawl (241), a second pawl (242), a first reed (251) and a second reed (252); The control disk (21) is rotatably connected to the inner shell (11), and a control ring (211) is provided on the control disk (21); The control spring (22) is arranged in the inner shell (11) to drive the control disk (21) to move upward; The control shaft (23) is rotatably disposed in the inner housing (11), and the control shaft (23) and the control disk (21) are connected via a flat key; The first pawl (241) is rotatably disposed on the control shaft (23); The second pawl (242) is rotatably disposed on the control shaft (23), and the first pawl (241) and the second pawl (242) are symmetrical to each other; The first reed (251) is arranged in the control shaft (23) and is used to drive the first pawl (241) to rotate in a direction away from the control shaft (23); The second reed (252) is arranged inside the control shaft (23) and is used to drive the second pawl (242) to rotate in a direction away from the control shaft (23).

7. An environment detection device according to claim 6, characterized in that: The working units are provided in a plurality of groups, which are evenly distributed in the shell (1) along the circumferential direction.

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