Air environment protection quality monitoring equipment

Abstract

The present invention discloses an air environment quality monitoring device, which relates to the field of air quality monitoring technology and includes a weight-adding positioning mechanism. The weight-adding positioning mechanism includes a rectangular channel frame, a monitoring and protection mechanism is installed on the top of the rectangular channel frame, a protective top frame is fixedly connected to the top of the rectangular channel frame, and a pull-out opening is opened on the surface of the protective top frame. The air environment quality monitoring device uses the weight-adding positioning mechanism and the monitoring and protection mechanism in combination. The arrangement of these two mechanisms can increase the weight by utilizing the water absorption of the sponge block when the amount of rainwater is large, thereby utilizing the linkage between the structures to drive the shielding frame and the isolation baffle to close and descend, thereby protecting the equipment box and the air detector, preventing the equipment from being exposed to rain for a long time, and does not require manual operation by staff, which is convenient for use.

Description

Technical Field

[0001] The present invention relates to the technical field of air quality monitoring, in particular to an air environment protection quality monitoring device. Background Art

[0002] Air monitoring refers to the fixed-point, continuous or timed sampling and measurement of pollutants in the air. In order to monitor the air, several air monitoring points are generally set up in a city, and automatic monitoring instruments are installed for continuous automatic monitoring. The monitoring results are regularly retrieved by people for analysis and relevant data is obtained. The air monitoring items mainly include sulfur dioxide, nitrogen monoxide, hydrocarbons, floating dust, etc. Air monitoring is the basis for air quality control and reasonable evaluation of air quality.

[0003] Most existing air monitoring equipment is installed outdoors for use. In order to cope with complex external conditions, it usually has good waterproof performance. However, it still has obvious defects in actual use, such as:

[0004] Although air monitoring equipment is waterproof and can withstand rain, if it is exposed to the elements and encounters heavy rain or long periods of light rain, it will corrode and age rapidly over time, thus reducing its overall service life and increasing the failure rate.

[0005] Therefore, a kind of air environment protection quality monitoring equipment that can improve protection is now designed to solve this type of defect. Summary of the Invention

[0006] In view of the shortcomings of the existing technology, the present invention provides an air environment protection quality monitoring device, which solves the problem that the existing equipment is easily aged due to being outside for a long time.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: an air environment protection quality monitoring device, including a weight-increasing positioning mechanism, the weight-increasing positioning mechanism includes a rectangular channel frame, and a monitoring and protection mechanism is installed on the top of the rectangular channel frame.

[0008] Preferably, the top of the rectangular channel frame is fixedly connected to a protective top frame, a pull-out opening is opened on the surface of the protective top frame, and four pull-out openings are provided, both sides of the bottom of the inner cavity of the protective top frame and the front and rear sides are fixedly connected to a slide frame through brackets, a slider seat is slidably installed on the inner side of the slide frame, the top of the slider seat is fixedly connected to an equipment box through a fixing plate, and the side of the equipment box away from the pull-out opening is fixedly connected to a positioning slot plate through a fixing block.

[0009] Preferably, both sides, front side and rear side of the protective top frame are fixedly connected with a shielding frame used in conjunction with the pull-out opening, a lifting slot is provided on the top of the shielding frame, an isolation baffle is slidably installed inside the lifting slot, a curved pull rod is slidably installed on the top of the protective top frame through the opening, the top ends of the four curved pull rods are fixedly connected to the isolation baffle through a fixing plate, a first spring is provided on the surface of the curved pull rod, and the bottom end of the first spring is in contact with the top of the protective top frame, and a water leakage net frame is fixedly connected between the bottom ends of the four curved pull rods through a fixing block.

[0010] Preferably, the bottom of the inner cavity of the water leakage net frame is fixedly connected to a lifting and lowering column through a fixing block, the top of the lifting and lowering column passes through the rectangular channel frame and extends to the inner side of the protective top frame, a sponge block is installed on the inner side of the water leakage net frame, and one end of the lifting and lowering column extending to the inside of the protective top frame is fixedly connected to a cross top plate through a fixing block, both sides of the bottom of the cross top plate and the front and rear sides are fixedly connected to pin columns used in conjunction with the positioning slot plate through fixing blocks, and the top of the cross top plate is fixedly connected to a direction ring hook through a fixing plate.

[0011] Preferably, the surface of the pressure-lifting column is provided with a rectangular guide groove extending to the rear, the bottom of the inner cavity of the protective top frame and the inner side of the rectangular guide groove are fixedly connected to a bow-shaped plate through a fixing block, the top of the bow-shaped plate is fixedly installed with a button, the bottom of the rectangular channel frame is fixedly connected to a water pressure top plate used in conjunction with the sponge block through a bracket, and the water pressure top plate is sleeved on the surface of the pressure-lifting column, the top of the protective top frame is fixedly connected to a linkage top box through an opening, side guide grooves are provided on both sides of the linkage top box, the two sides of the bottom of the rectangular channel frame and the front and rear sides are fixedly connected to a liquid guide bend used in conjunction with the pressure-lifting column through openings, and an inclined pressure block is fixedly installed on the right side of the top of the inner cavity of the protective top frame.

[0012] Preferably, the monitoring and protection mechanism includes a U-shaped top plate, which is fixedly installed on the top of the protective top frame through a fixing plate, and a cylindrical support rod is slidably installed on the top of the U-shaped top plate through an opening, and the bottom end of the cylindrical support rod passes through the linkage top box and extends to the inner side of the protective top frame, and both sides of the cylindrical support rod and the inner side of the linkage top box are fixedly connected with a limiting cross bar, one end of the limiting cross bar passes through the side guide groove and extends to the outside of the linkage top box, and both sides of the top of the U-shaped top plate are fixedly connected with an electric telescopic rod through an opening, and the bottom end of the electric telescopic rod is fixedly connected to the top of the limiting cross bar through a fixing block, and an air detector is fixedly installed on the top of the cylindrical support rod.

[0013] Preferably, both sides of the top of the U-shaped top plate are fixedly connected to side supports through fixed plates, and the opposite sides of the two side supports are rotatably connected to a shielding frame used in conjunction with an air detector through a rotating part, and the interior of the shielding frame is fixedly connected to a closing frame used in conjunction with the air detector, and a second spring is fixedly connected between the shielding frame and the side supports through a fixed plate.

[0014] Preferably, the bottom end of the cylindrical support rod is fixedly connected to an L-shaped pressure frame, and a pull-back spring rod is slidably installed on the right side of the L-shaped pressure frame through an opening, and one end of the pull-back spring rod located on the inner side of the L-shaped pressure frame is fixedly connected to a blocking plate, and the inner side of the blocking plate is rotatably connected to an arc-shaped lifting hook used in conjunction with the direction ring hook through a rotating part, and the other end of the pull-back spring rod is fixedly connected to a square ring used in conjunction with the inclined pressure block, and a third spring is sleeved on the surface of the pull-back spring rod and located between the L-shaped pressure frame and the blocking plate.

[0015] The present invention provides an air quality monitoring device. Compared with existing technologies, it has the following advantages:

[0016] (1) The air quality monitoring equipment for environmental protection uses a weight-increasing positioning mechanism and a monitoring and protection mechanism in combination. The two mechanisms can increase the weight by utilizing the water absorption of the sponge block when the amount of rainwater is large, thereby utilizing the linkage between the structures to drive the shielding frame and the isolation baffle to close and descend, thereby protecting the equipment box and the air detector and preventing the equipment from being exposed to the rain for a long time. In addition, the staff does not need to operate manually, which is convenient for use. In addition, the equipment can be directly reset when the electric telescopic rod is started again, which is convenient for daily use.

[0017] (2) The air quality monitoring equipment is provided with four liquid guiding bends at the bottom of the rectangular channel frame, and is used in combination with an isolation baffle, a button and an electric telescopic rod. The arrangement of these structures allows rainwater to flow into the leaking net frame through the liquid guiding bends, thereby increasing the weight of the sponge block, driving the isolation baffle and the lifting column to descend, and pressing the button on the lifting column to start the electric telescopic rod to cause the air detector to begin to descend. The air detector is used to squeeze the closing frame to close the two shielding frames, thereby ensuring that the equipment box and the air detector can be protected in time, without the need for manual operation by the staff, and meeting the current use.

[0018] (3) The air quality monitoring equipment is equipped with an arc-shaped lifting hook and a square ring at the bottom of the cylindrical support rod by using an L-shaped pressure frame, and is used in conjunction with a direction ring hook and a water pressure top plate. The arrangement of these structures enables the arc-shaped lifting hook to be directly hooked with the direction ring hook after the air detector is lowered, ensuring that the water leakage net frame can be directly lifted up and reset after the air detector is raised. Moreover, after the air detector is raised, the water pressure top plate can squeeze the sponge block to discharge water, thereby ensuring the smoothness of subsequent use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the present invention;

[0020] Figure 2 A cross-sectional view of the rectangular channel frame and protective top frame structure of the present invention;

[0021] Figure 3 A schematic diagram of the slider seat, equipment box and positioning slot plate structure of the present invention;

[0022] Figure 4 Schematic diagram of the water leakage screen frame, lifting and lowering columns and sponge block structure of the present invention;

[0023] Figure 5 A side view of the internal structure of the rectangular channel frame and protective top frame of the present invention;

[0024] Figure 6 A bottom view of the internal structure of the protective top frame of the present invention;

[0025] Figure 7 A schematic diagram of the monitoring and protection mechanism structure of the present invention;

[0026] Figure 8 A schematic diagram of the shielding frame, the closing frame and the second spring structure of the present invention;

[0027] Figure 9 Schematic diagram of the blocking plate, arc-shaped lifting hook and third spring structure of the present invention.

[0028] In the figure: 1. Weight-increasing positioning mechanism; 2. Monitoring and protection mechanism; 101. Rectangular channel frame; 102. Protective top frame; 103. Pull-out opening; 104. Slide frame; 105. Slider seat; 106. Equipment box; 107. Positioning slot plate; 108. Shielding frame; 109. Lifting slot; 110. Isolation baffle; 111. Curved pull rod; 112. First spring; 113. Leakage net frame; 114. Lifting and lowering pressure column; 115. Sponge block; 116. Cross top plate; 117. Latch column; 118. Direction ring hook; 119. Rectangular guide groove; 120. Water pressure top plate; 121, bow-shaped plate; 122, button; 123, inclined pressure block; 124, linkage top box; 125, side guide groove; 126, liquid guide elbow; 201, U-shaped top plate; 202, cylindrical support rod; 203, electric telescopic rod; 204, limit cross bar; 205, air detector; 206, side support frame; 207, shielding frame; 208, closing frame; 209, second spring; 210, L-shaped pressure frame; 211, pull-back spring rod; 212, blocking plate; 213, arc-shaped lifting hook; 214, third spring; 215, square ring. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] See also Figure 1-9 The present invention provides a technical solution: an air environment protection quality monitoring device, including a weight-increasing positioning mechanism 1, the weight-increasing positioning mechanism 1 includes a rectangular channel frame 101, the top of the rectangular channel frame 101 is a concave groove on the edge side, and a monitoring and protection mechanism 2 is installed on the top of the rectangular channel frame 101.

[0031] Please refer to Figure 3 、 Figure 4 、 Figure 5 and Figure 6, showing the overall structure of the weight-increasing positioning mechanism 1, the top of the rectangular channel frame 101 is fixedly connected to the protective top frame 102, and the surface of the protective top frame 102 is provided with a pull-out opening 103, and four pull-out openings 103 are provided. Both sides of the bottom of the inner cavity of the protective top frame 102 and the front and rear sides are fixedly connected to the slide frame 104 through brackets, and a slider seat 105 is slidably installed on the inner side of the slide frame 104. The top of the slider seat 105 is fixedly connected to the equipment box 106 through a fixed plate, and the side of the equipment box 106 away from the pull-out opening 103 is fixedly connected to the positioning slot plate 107 through a fixed block. Both sides and the front and rear sides of the protective top frame 102 are fixedly connected to the shield used in conjunction with the pull-out opening 103. The baffle frame 108 and the shielding frame 108 are provided with a lifting slot 109 on the top, and an isolation baffle 110 is slidably installed inside the lifting slot 109. The top of the protective top frame 102 is slidably installed with a curved pull rod 111 through the opening. The top ends of the four curved pull rods 111 are fixedly connected to the isolation baffle 110 through a fixed plate. The surface of the curved pull rod 111 is provided with a first spring 112, and the bottom end of the first spring 112 is in contact with the top of the protective top frame 102. The bottom ends of the four curved pull rods 111 are fixedly connected with a water leakage net frame 113 through a fixed block. The bottom of the inner cavity of the water leakage net frame 113 is fixedly connected with a lifting and pressure column 114 through a fixed block. The top of the lifting and pressure column 114 passes through the rectangular The channel frame 101 extends to the inner side of the protective top frame 102, and a sponge block 115 is installed on the inner side of the leaking net frame 113. The sponge block 115 can be disassembled and replaced from the inner side of the leaking net frame 113. The lifting and pressure column 114 extends to one end of the interior of the protective top frame 102 and is fixedly connected to a cross top plate 116 through a fixing block. Both sides of the bottom of the cross top plate 116 and the front and rear sides are fixedly connected to a latch column 117 used in conjunction with the positioning slot plate 107 through a fixing block. The top of the cross top plate 116 is fixedly connected to a direction ring hook 118 through a fixing plate. The surface of the lifting and pressure column 114 is provided with a rectangular guide groove 119 that runs through to the rear. The bottom of the inner cavity of the protective top frame 102 is located in the rectangular guide groove 119. The inner side of the rectangular channel frame 101 is fixedly connected to a bow-shaped plate 121 through a fixed block, and a button 122 is fixedly installed on the top of the bow-shaped plate 121. The bottom of the rectangular channel frame 101 is fixedly connected to a water-pressurizing top plate 120 used in conjunction with the sponge block 115 through a bracket, and the water-pressurizing top plate 120 is sleeved on the surface of the lifting and pressure column 114. The top of the protective top frame 102 is fixedly connected to a linkage top box 124 through an opening. Side guide grooves 125 are provided on both sides of the linkage top box 124. The two sides of the bottom of the rectangular channel frame 101 and the front and rear sides are fixedly connected to a liquid guide bend 126 used in conjunction with the lifting and pressure column 114 through openings. An inclined pressure block 123 is fixedly installed on the right side of the top of the inner cavity of the protective top frame 102.

[0032] Please refer to Figure 7 、 Figure 8 and Figure 9, showing the overall structure of the monitoring and protection mechanism 2, the monitoring and protection mechanism 2 includes a U-shaped top plate 201, the U-shaped top plate 201 is fixedly installed on the top of the protection top frame 102 through a fixing plate, the top of the U-shaped top plate 201 is slidably installed with a cylindrical support rod 202 through an opening, and the bottom end of the cylindrical support rod 202 passes through the linkage top box 124 and extends to the inner side of the protection top frame 102, both sides of the cylindrical support rod 202 and the inner side of the linkage top box 124 are fixedly connected to the limiting cross bar 204, one end of the limiting cross bar 204 passes through the side The side guide groove 125 extends to the outside of the linkage top box 124. Both sides of the top of the U-shaped top plate 201 are fixedly connected to the electric telescopic rod 203 through openings. The electric telescopic rod 203 is a waterproof electric device, and the bottom end of the electric telescopic rod 203 is fixedly connected to the top of the limit cross bar 204 through a fixed block. The top of the cylindrical support rod 202 is fixedly installed with an air detector 205. The model of the air detector 205 is JH-6120-A. Both sides of the top of the U-shaped top plate 201 are fixedly connected to the side brackets through fixed plates. 206, the two side supports 206 are rotatably connected to the shielding frame 207 used in conjunction with the air detector 205 on the opposite side through a rotating member, the shielding frame 207 is fixedly connected to the closing frame 208 used in conjunction with the air detector 205 inside, the shielding frame 207 and the side supports 206 are fixedly connected to a second spring 209 through a fixing plate, the bottom end of the cylindrical support rod 202 is fixedly connected to an L-shaped pressure frame 210, and a retraction spring rod 211 is slidably installed on the right side of the L-shaped pressure frame 210 through an opening. One end of the pull-back elastic rod 211 located on the inner side of the L-shaped pressure frame 210 is fixedly connected to a blocking plate 212, and the inner side of the blocking plate 212 is rotatably connected to an arc-shaped lifting hook 213 used in conjunction with the direction ring hook 118 through a rotating member. The arc-shaped lifting hook 213 can only be flipped upward due to the obstruction of the blocking plate 212, and the other end of the pull-back elastic rod 211 is fixedly connected to a square ring 215 used in conjunction with the inclined surface pressure block 123. A third spring 214 is sleeved on the surface of the pull-back elastic rod 211 and located between the L-shaped pressure frame 210 and the blocking plate 212.

[0033] The air quality monitoring method comprises the following steps:

[0034] S1. Before use, first install the rectangular channel frame 101 outdoors, then install the sponge block 115 inside the leakage net frame 113, and then start the air detector 205 for detection. The monitoring data is viewed through the equipment box 106. If the equipment box 106 needs to be operated, the slider seat 105 and the chute frame 104 are used to limit the equipment box 106 to be pulled out from the pull-out opening 103. After the equipment box 106 is pulled out, it can be operated and maintained;

[0035] S2. During daily use, if it rains heavily, rainwater falls into the grooves around the top of the rectangular channel frame 101, and then the rainwater on the top of the rectangular channel frame 101 flows into the inner side of the leaking mesh frame 113 through the liquid guiding elbow 126, and then the sponge block 115 absorbs the water inside the leaking mesh frame 113. After the sponge block 115 absorbs the water, the overall weight increases. At this time, the weighted sponge block 115 uses the limited position of the curved pull rod 111 to pull the leaking mesh frame 113, the curved pull rod 111 and the lifting and lowering column 114 to drop synchronously, and when the curved pull rod 111 drops, it will drive the four isolation baffles 110 to drop, thereby closing the pull-out opening 103, and the closed shielding frame 108 protects the equipment box 106. At the same time, the decline of the cross top plate 116 will drive the latch column 117 to insert The inner sides of the four positioning slot plates 107 fix the equipment box 106, and the lifting and lowering pressure column 114 that descends to the bottom will press the button 122 on the top of the inner cavity of the rectangular guide slot 119 to start the electric telescopic rod 203. After the electric telescopic rod 203 is started, it will push the cylindrical support rod 202 and the air detector 205 to descend. After the air detector 205 descends to the inner side of the shielding frame 207, it will press the closing frames 208 on both sides, thereby driving the two shielding frames 207 to flip and close each other to protect the air detector 205. At the same time, the L-shaped pressure frame 210 also descends to the bottom, and the arc-shaped lifting hook 213 flips upward and then hooks with the direction ring hook 118. Then the electric telescopic rod 203 stops. In this state, the air detector 205 and the equipment box 106 are both protected.

[0036] S3. After the rain stops, the electric telescopic rod 203 is manually started to pull the cylindrical support rod 202 up. After the cylindrical support rod 202 rises, the square ring 215 is used to hook the direction ring hook 118 to drive the cross top plate 116 to rise. As the air detector 205 rises, it no longer presses down on the closing frame 208. At this time, the two shielding frames 207 are flipped open in opposite directions under the elastic tension of the second spring 209 to expose the air detector 205. After the cylindrical support rod 202 rises to the top, it will pull the water leakage net frame 113 and the sponge block 115 to squeeze the water pressure top plate 120. The cotton block 115 squeezes out the moisture to reduce the overall weight of the leaking mesh frame 113, and at the same time, the isolation baffle 110 is raised to open the shielding frame 108, and the latch column 117 is pulled out from the inner side of the positioning slot plate 107 to restore the movement of the equipment box 106, until the L-shaped pressure frame 210 rises to the top, the inclined pressure block 123 will be inserted into the square ring 215 and squeeze it, and after the square ring 215 is squeezed, it drives the arc-shaped lifting hook 213 to move to the right and disengage from the direction ring hook 118. At this time, the elastic force of the first spring 112 supports the isolation baffle 110 from falling, and then the air detector 205 continues to monitor.

[0037] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims

1. An air quality monitoring device, comprising a weight-increasing positioning mechanism (1), characterized in that: The weight-increasing positioning mechanism (1) comprises a rectangular channel frame (101), and a monitoring and protection mechanism (2) is installed on the top of the rectangular channel frame (101); The top of the rectangular channel frame (101) is fixedly connected to a protective top frame (102), a surface of the protective top frame (102) is provided with a draw-out opening (103), and four draw-out openings (103) are provided. Both sides of the bottom of the inner cavity of the protective top frame (102) and the front and rear sides are fixedly connected to a slide frame (104) through a bracket. A slider seat (105) is slidably installed on the inner side of the slide frame (104). The top of the slider seat (105) is fixedly connected to an equipment box (106) through a fixing plate. The side of the equipment box (106) away from the draw-out opening (103) is fixedly connected to a positioning slot plate (107) through a fixing block. Both sides, front side and rear side of the protective top frame (102) are fixedly connected with a shielding frame (108) used in conjunction with the drawer opening (103); a lifting slot (109) is provided on the top of the shielding frame (108); an isolation baffle (110) is slidably installed inside the lifting slot (109); a curved pull rod (111) is slidably installed on the top of the protective top frame (102) through the opening; the top ends of the four curved pull rods (111) are fixedly connected to the isolation baffle (110) through a fixing plate; a first spring (112) is sleeved on the surface of the curved pull rod (111), and the bottom end of the first spring (112) contacts the top of the protective top frame (102); a water leakage net frame (113) is fixedly connected between the bottom ends of the four curved pull rods (111) through a fixing block; The bottom of the inner cavity of the water leakage net frame (113) is fixedly connected to a lifting and lowering column (114) through a fixing block, the top of the lifting and lowering column (114) passes through the rectangular channel frame (101) and extends to the inner side of the protective top frame (102), and a sponge block (115) is installed on the inner side of the water leakage net frame (113). One end of the lifting and lowering column (114) extending to the inside of the protective top frame (102) is fixedly connected to a cross top plate (116) through a fixing block, and both sides of the bottom of the cross top plate (116) and the front and rear sides are fixedly connected to a latch column (117) used in conjunction with the positioning slot plate (107) through a fixing block, and the top of the cross top plate (116) is fixedly connected to a direction ring hook (118) through a fixing plate.

2. The air quality monitoring device according to claim 1, characterized in that: The surface of the lifting and lowering pressure column (114) is provided with a rectangular guide groove (119) extending to the rear, the bottom of the inner cavity of the protective top frame (102) and located inside the rectangular guide groove (119) is fixedly connected to a bow plate (121) through a fixing block, the top of the bow plate (121) is fixedly installed with a button (122), the bottom of the rectangular channel frame (101) is fixedly connected to a water pressure top plate (120) used in conjunction with the sponge block (115) through a bracket, and the water pressure top plate (120) is sleeved on The surface of the lifting and lowering pressure column (114), the top of the protective top frame (102) is fixedly connected to the linkage top box (124) through an opening, and side guide grooves (125) are provided on both sides of the linkage top box (124). The two sides of the bottom of the rectangular channel frame (101) and the front and rear sides are fixedly connected to the liquid guide bend (126) used in conjunction with the lifting and lowering pressure column (114) through openings, and an inclined pressure block (123) is fixedly installed on the right side of the top of the inner cavity of the protective top frame (102).

3. The air quality monitoring device according to claim 2, characterized in that: The monitoring and protection mechanism (2) includes a U-shaped top plate (201), the U-shaped top plate (201) is fixedly mounted on the top of the protection top frame (102) through a fixing plate, a cylindrical support rod (202) is slidably mounted on the top of the U-shaped top plate (201) through an opening, and the bottom end of the cylindrical support rod (202) passes through the linkage top box (124) and extends to the inner side of the protection top frame (102), and both sides of the cylindrical support rod (202) and the inner side of the linkage top box (124) are A limiting cross bar (204) is fixedly connected, one end of the limiting cross bar (204) passes through the side guide groove (125) and extends to the outside of the linkage top box (124), both sides of the top of the U-shaped top plate (201) are fixedly connected to the electric telescopic rod (203) through an opening, and the bottom end of the electric telescopic rod (203) is fixedly connected to the top of the limiting cross bar (204) through a fixed block, and an air detector (205) is fixedly installed on the top of the cylindrical support rod (202).

4. The air quality monitoring device according to claim 3, characterized in that: Both sides of the top of the U-shaped top plate (201) are fixedly connected to side supports (206) via fixed plates, and opposite sides of the two side supports (206) are rotatably connected to a shielding frame (207) used in conjunction with the air detector (205) via rotating members, and a closure frame (208) used in conjunction with the air detector (205) is fixedly connected inside the shielding frame (207), and a second spring (209) is fixedly connected between the shielding frame (207) and the side supports (206) via a fixed plate.

5. The air quality monitoring device according to claim 4, characterized in that: The bottom end of the cylindrical support rod (202) is fixedly connected to an L-shaped pressure frame (210), and a retraction spring rod (211) is slidably installed on the right side of the L-shaped pressure frame (210) through an opening. One end of the retraction spring rod (211) located inside the L-shaped pressure frame (210) is fixedly connected to a blocking plate (212), and the inner side of the blocking plate (212) is rotatably connected to an arc-shaped lifting hook (213) used in conjunction with a direction ring hook (118) through a rotating member. The other end of the retraction spring rod (211) is fixedly connected to a square ring (215) used in conjunction with an inclined pressure block (123), and a third spring (214) is sleeved on the surface of the retraction spring rod (211) and located between the L-shaped pressure frame (210) and the blocking plate (212).

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