Air monitoring device

Abstract

The embodiment of the invention provides an air monitoring device, and relates to the technical field of air monitoring. An air monitoring device comprises a support, the inner side of the support is rotationally connected with a top frame, the bottom of the top frame is provided with a bottom frame, the top of the top frame is provided with a protective cover, the top of the protective cover is fixedly connected with a storage frame, and piston cylinders are fixed to the opposite angles of the outer side of the bottom frame; an acting assembly which is in reciprocating fit with the piston cylinder is arranged in the bottom frame, the acting assembly comprises a double-head motor, and a suction assembly is arranged on the piston cylinder; an expansion assembly used in cooperation with the storage frame is arranged at the outer end of the suction assembly, monitoring assemblies used for air monitoring are arranged in the top frame and the protective cover, and each monitoring assembly comprises a pollutant sensing module set, a particulate matter sensing module set and an environmental parameter sensing module set which are embedded in the protective cover. And flexible and efficient monitoring operation is carried out on air in ground, air and underground multi-scene and multi-complex places.

Description

Technical Field

[0001] This invention belongs to the field of air monitoring technology, and in particular relates to an air monitoring device. Background Technology

[0002] Air monitoring refers to the sampling and measurement of pollutants in the air at fixed points, continuously or at fixed times. In order to monitor the air, several air monitoring points are usually set up in a city and automatic monitoring instruments are installed for continuous automatic monitoring. In addition, air monitoring is also carried out in the air in highly polluted areas, as well as in places such as wells and caves.

[0003] In existing technology (patent application CN115792127B, entitled "An Ambient Air Monitoring Device"), the monitoring of ambient air points at different heights and directions is achieved, reducing the error in assessing the ambient air quality of the region. However, in implementing this technical solution, at least the following problems were found in the existing technology: During air monitoring, the air is mainly captured and monitored by ground-based monitoring sensors. However, since some substances in the air may drift and stagnate in mid-air or condense in underground spaces, this method is insufficient for air monitoring in such locations. Other auxiliary measures are needed, which is cumbersome, laborious, and inefficient. Summary of the Invention

[0004] This application aims to at least address one of the technical problems existing in the prior art that prevents flexible and efficient monitoring of air in various complex environments, including ground, air, and underground locations. To this end, this application proposes an air monitoring device.

[0005] To achieve the above objectives, the specific technical solution of the present invention is as follows: An air monitoring device includes a bracket, a top frame rotatably connected to the inner side of the bracket, a base frame provided at the bottom of the top frame, a protective cover provided at the top of the top frame, and a storage rack fixedly connected to the top of the protective cover. A piston cylinder is fixed diagonally on the outer side of the base frame. The base frame is equipped with a power-operating component that reciprocates with the piston cylinder. The power-operating component includes a dual-head motor embedded between the top frame and the base frame. The piston cylinder is equipped with a suction component, which includes a first three-way valve and a second three-way valve respectively connected to the piston cylinder. The outer end of the suction component is provided with an expansion component for use with the storage rack, and the expansion component includes a secondary helium supply pipe and a secondary water supply pipe that pass through the outer end of the storage rack. The top frame and the protective cover are provided with a monitoring component for air monitoring, and the monitoring component includes a pollutant sensing module group, a particulate matter sensing module group and an environmental parameter sensing module group respectively embedded in the protective cover.

[0006] Preferably, the power-operating component further includes a drive gear fixed on one output shaft of the dual-head motor, and a first driven gear and a second driven gear are respectively provided on the outer side of the drive gear. A first electric push rod and a second electric push rod that rotate with the piston cylinder are respectively fixedly connected to the outer side of the first driven gear and the second driven gear. A cam is fixedly connected to the outer side of the first electric push rod and the second electric push rod. A connecting rod is hinged on the cam, and a piston that slides with the piston cylinder is hinged on the connecting rod.

[0007] Preferably, the suction assembly further includes a flow sensor embedded in the first three-way valve and the second three-way valve, and the suction ports of the first three-way valve and the second three-way valve are respectively connected to a helium suction pipe and a water suction pipe. The ends of the helium suction pipe and the water suction pipe are respectively connected to a helium storage tank and a water storage tank fixed diagonally to the top frame. The supply and discharge ports of the first three-way valve and the second three-way valve are respectively connected to a primary helium delivery pipe and a primary water delivery pipe that are embedded and matched with the top frame, and are connected to a secondary helium delivery pipe and a secondary water delivery pipe.

[0008] Preferably, the expansion assembly further includes a pressure relief valve connected to the secondary helium supply pipe and the secondary water supply pipe, and the outer end of the pressure relief valve is connected to a recovery head and a return head for helium and water recovery, respectively. The inner ends of the secondary helium supply pipe and the secondary water supply pipe are connected to an expansion ball that is fixedly fitted with the storage rack. The expansion ball is provided with a waterproof layer, a reinforcing layer and an inner liner layer from the outside to the inside. The reinforcing layer adopts a cross-woven elastic braided yarn design.

[0009] Preferably, the monitoring component further includes a wireless transceiver embedded in the protective cover, which is wirelessly connected to the pollutant sensing module group, the particulate matter sensing module group, and the environmental parameter sensing module group. A lifting cylinder is fixed to the other output shaft of the dual-head motor via a coupling, and a dual-head gear is fixedly connected to the lifting cylinder. Lower gears are provided around the bottom of the dual-head gear, and a winding frame that rotates with the top frame is fixedly connected to the outer side of the lower gear. A steel wire rope that is fixedly engaged with the protective cover is wound on the winding frame and passes through the top frame.

[0010] Preferably, the helium storage tank and the water storage tank are respectively equipped with a concentration sensor and a liquid level sensor, and the helium storage tank, the helium suction pipe, the primary helium transfer pipe and the secondary helium transfer pipe are all covered with a heat-insulating protective sleeve.

[0011] Preferably, the primary helium delivery pipe and the primary water delivery pipe are fitted with sealing sleeves that connect and seal with the secondary helium delivery pipe and the secondary water delivery pipe, and both sides of the storage rack are hinged with sealing caps that cooperate with the expansion ball sealing via damping hinges.

[0012] Preferably, the bottom of the protective cover is fixedly connected to positioning sleeves that are fitted into the top frame, and is fixed with four steel wire ropes.

[0013] Preferably, a three-stage cylinder is embedded on both sides of the bracket, and the bottom of the three-stage cylinder passes through the bracket and is fixedly connected to a traveling wheel with brake pads, and a three-color alarm light is fixedly connected to the top of the bracket.

[0014] Preferably, the outer side of the bracket is fixedly connected to a flipping motor that rotates and cooperates with the top frame, the bottom frame and the protective cover, and the inner side of the bracket is fixedly connected to a ring frame, and the outer side of the top frame is provided with a side sliding opening that slides and cooperates with the ring frame.

[0015] An air monitoring device according to the present invention has the following advantages: 1. This air monitoring device first controls the opening of a first or second electric push rod according to the current air monitoring scenario requirements. After adjusting the meshing stroke between the drive gear and the first and second driven gears, a dual-head motor drives one set of cams to rotate through the meshed first or second driven gears and the drive gear. The cams drive the piston on the connecting rod to reciprocate within the piston cylinder. The negative pressure generated by the work done in the piston cylinder is passed through the helium suction pipe and water suction pipe on the first or second three-way valve to draw helium from the helium storage tank or water from the water storage tank. After the flow rate is detected by the flow sensor, the drawn helium and water are supplied to the primary helium supply pipe and the primary water supply pipe, achieving the corresponding suction and supply effect of helium and water, providing convenience for subsequent air monitoring on the ground, in the air, or underground.

[0016] 2. In this air monitoring device, firstly, helium or water supplied by the primary helium supply pipe and the primary water supply pipe are pumped into the expansion sphere through the secondary helium supply pipe and the secondary water supply pipe. As helium or water is continuously added, the expansion sphere expands and grows larger. When helium is added, according to the characteristics of helium, the expanding sphere, through the storage frame, causes the monitoring sensor module inside the protective cover to float upwards into the air to monitor the air. When water is added, the expansion sphere also expands and grows larger. The expanding sphere, through the flipped-down storage frame, causes the monitoring sensor module inside the protective cover to descend into the underground space to monitor the air in the underground space. When helium or water is not added to the expansion sphere, the monitoring sensor module inside the protective cover monitors the air on the ground in its initial state, achieving efficient monitoring of air on the ground, in the air, and underground in multiple scenarios. Next, the pollutant sensing module group, particulate matter sensing module group, and environmental parameter sensing module group, which follow the protective cover to the ground, air, or underground scene, conduct diverse monitoring of the current air pollutants, particulate matter, and environmental parameter data. The protective cover will drive four steel wire ropes to pull upward or downward, providing tension protection for the protective cover. At the same time, the wireless transceiver will wirelessly transmit the monitoring data to the back-end terminal. After the air monitoring in the air or underground scene is completed, the lifting cylinder will first control the engagement stroke between the double-headed gear and the four lower gears to be in place. Then, the double-headed motor will drive the four winding frames to rotate through the engaged double-headed gear and the four lower gears to wind up the protective cover. The four winding frames will drive the four steel wire ropes to wind up and reset the protective cover located in the air or underground. This meets the diverse and comprehensive monitoring needs of the ground, air, or underground scene, and also facilitates the tension protection and winding reset work of the monitoring sensing modules inside the protective cover.

[0017] 3. In this air monitoring device, when the monitoring and sensing module inside the protective cover monitors the air in an aerial or underground scene, the lifting cylinder is first adjusted to the meshing stroke between the double-headed gear and the four upper gears. Then, the double-headed motor drives the four short lead screws to rotate synchronously through the meshed double-headed gear and the four upper gears. The four short lead screws drive the sliding parts on the four sets of lead screw sleeves to slide outward synchronously in the inclined sliding grooves. The four sets of sliding parts drive the four sets of card seats to move outward and disengage from the card slots at the four corners of the protective cover, releasing the protective cover on the top frame. Finally, the monitoring and sensing module inside the protective cover is lifted into the air or lowered into the ground by the expansion ball filled with helium or water in the storage rack, so as to efficiently monitor the air in the aerial or underground scene. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a diagram illustrating the air monitoring status of an air monitoring device according to the present invention. Figure 2 This is a diagram illustrating the underground air monitoring status of an air monitoring device according to the present invention. Figure 3 This is a ground air monitoring status diagram of an air monitoring device structure according to the present invention; Figure 4 This is a cross-sectional view of an air monitoring device according to the present invention; Figure 5This is a side view of the structure of the protective cover, storage rack, piston cylinder, working component, suction component and expansion component of the present invention. Figure 6 This is a bottom view of the structure of the storage rack, piston cylinder, working component, suction component and expansion component of the present invention; Figure 7 Helium-filled structural diagrams of the storage rack, piston cylinder, working assembly, suction assembly, and expansion assembly of the present invention. Figure 8 A diagram showing the water-filled structure of the storage rack, piston cylinder, working component, suction component, and expansion component of the present invention. Figure 9 This is an exploded cross-sectional view of the piston cylinder, power assembly, and suction assembly of the present invention. Figure 10 This is a cross-sectional view of the expansion sphere structure of the present invention; Figure 11 This is an initial state diagram of the protective cover, dual-head motor, and monitoring component structure of the present invention; Figure 12 This is a diagram showing the structural working state of the protective cover, dual-head motor, and monitoring component of the present invention. Figure 13 This is a partial exploded view of the dual-head motor and monitoring component structure of the present invention; Figure 14 This is an initial state diagram of the protective cover, dual-head motor, and anti-detachment component of the present invention; Figure 15 This is a diagram showing the release state of the dual-head motor and anti-detachment component structure of the present invention; Figure 16 This is a side cross-sectional view of the protective cover and monitoring component structure of the present invention; Figure 17 This is a side view of the support, top frame, and base frame structure of the present invention; Figure 18 This is an exploded view of the support, top frame, and base frame structure of the present invention.

[0020] Explanation of markings in the diagram: 1. Bracket; 2. Top frame; 3. Base frame; 4. Protective cover; 5. Storage rack; 6. Piston cylinder; 71. Dual-head motor; 72. Drive gear; 73. First driven gear; 74. First electric push rod; 75. Second driven gear; 76. Second electric push rod; 77. Cam; 78. Connecting rod; 79. Piston; 81. First three-way valve; 82. Second three-way valve; 83. Flow sensor; 84. Helium suction pipe; 85. Helium storage tank; 86. Primary helium delivery pipe; 87. Water suction pipe; 88. Water storage tank; 89. Primary water delivery pipe; 91. Secondary helium delivery pipe; 92. Secondary water delivery pipe; 93. Pressure relief valve; 94. Recovery head; 95. Return head; 96. Expansion ball; 97. 98. Waterproof layer; 99. Reinforcing layer; 100. Inner liner layer; 101. Pollutant sensing module group; 102. Particulate matter sensing module group; 103. Environmental parameter sensing module group; 104. Wireless transceiver; 105. Lifting cylinder; 106. Double-headed gear; 107. Lower gear; 108. Winding frame; 109. Steel wire rope; 111. Upper gear; 112. Short lead screw; 113. Lead screw sleeve; 114. Sliding component; 115. Inclined slide groove; 116. Card seat; 117. Card slot; 12. Concentration sensor; 13. Liquid level sensor; 14. Sealing sleeve; 15. Sealing cap; 16. Positioning sleeve; 17. Three-stage cylinder; 18. Tilting motor; 19. Ring frame; 20. Side sliding port. Detailed Implementation

[0021] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments: like Figures 1-18 As shown, an air monitoring device of the present invention includes a bracket 1, a top frame 2 rotatably connected to the inner side of the bracket 1, a base frame 3 at the bottom of the top frame 2, a protective cover 4 at the top of the top frame 2, and a storage rack 5 fixedly connected to the top of the protective cover 4. Piston cylinders 6 are fixedly mounted diagonally on the outer side of the base frame 3. Three-stage cylinders 17 are embedded on both sides of the bracket 1 to adjust the height of the bracket 1, top frame 2, base frame 3, and the entire device. The bottom of the three-stage cylinders 17 penetrates the bracket 1 and is fixedly connected to a traveling wheel with brake pads, facilitating the movement of the bracket 1, top frame 2, base frame 3, and the entire device. The top of the bracket 1 is fixedly connected with a three-color alarm light to warn of the equipment's operating status. The outside of the bracket 1 is fixedly connected with a flip motor 18 that rotates and cooperates with the top frame 2, the bottom frame 3, and the protective cover 4. The bracket 1 serves as a support to flip and adjust the top frame 2, the bottom frame 3, and the whole structure, which is beneficial for monitoring air in the air and underground. The inside of the bracket 1 is fixedly connected with a ring frame 19. The outside of the top frame 2 is provided with a side sliding opening 20 that slides and cooperates with the ring frame 19 to provide rotational support for the top frame 2, the bottom frame 3, and the whole structure in the flipped state, thereby improving its stability during rotation. The base frame 3 is equipped with a working component that reciprocates with the piston cylinder 6. The working component includes a dual-head motor 71 embedded between the top frame 2 and the base frame 3. The piston cylinder 6 is equipped with a suction component, which includes a first three-way valve 81 and a second three-way valve 82 respectively connected to the piston cylinder 6. The outer end of the suction component is equipped with an expansion component that works with the storage rack 5. The expansion component includes a secondary helium supply pipe 91 and a secondary water supply pipe 92 that pass through the outer end of the storage rack 5. The top frame 2 and the protective cover 4 are equipped with a monitoring component for air monitoring. The monitoring component includes a pollutant sensing module group 101, a particulate matter sensing module group 102 and an environmental parameter sensing module group 103 respectively embedded in the protective cover 4. This allows for flexible and efficient monitoring of air in various complex environments, including ground, air, and underground locations.

[0022] like Figures 5-13 As shown, the working assembly also includes a drive gear 72 fixed on one output shaft of the dual-head motor 71. A first driven gear 73 and a second driven gear 75 are respectively disposed on the outer side of the drive gear 72. A first electric push rod 74 and a second electric push rod 76, which rotate and cooperate with the piston cylinder 6, are respectively fixedly connected to the outer sides of the first driven gear 73 and the second driven gear 75. According to the current air monitoring scenario requirements, the first electric push rod 74 or the second electric push rod 76 is controlled to open and control the drive gear 72 and the first driven gear 73. The meshing stroke between the first electric push rod 74 and the second electric push rod 76 is adjusted to the correct position, and the outer sides of the first electric push rod 74 and the second electric push rod 76 are fixedly connected to the cam 77. The cam 77 is hinged to the connecting rod 78, and the connecting rod 78 is hinged to the piston 79 which slides with the piston cylinder 6. Then, the dual-head motor 71 drives one of the cams 77 to rotate through the first driven gear 73 or the second driven gear 75 that are meshed to the correct position and the drive gear 72. The cam 77 drives the piston 79 on the connecting rod 78 to reciprocate in the piston cylinder 6. The suction assembly also includes a flow sensor 83 embedded in the first three-way valve 81 and the second three-way valve 82. The suction ports of the first three-way valve 81 and the second three-way valve 82 are respectively connected to a helium suction pipe 84 and a water suction pipe 87. The negative pressure generated by the work done in the piston cylinder 6 passes through the helium suction pipe 84 and the water suction pipe 87 on the first three-way valve 81 or the second three-way valve 82. The ends of the helium suction pipe 84 and the water suction pipe 87 are respectively connected to a helium storage tank 85 and a water storage tank 88 fixed diagonally to the top frame 2, respectively, to pump helium from the helium storage tank 85. The gas or water in the storage tank 88 is drawn in, and the flow rate is detected by the flow sensor 83. The inlet and outlet ports of the first three-way valve 81 and the second three-way valve 82 are respectively connected to the primary helium supply pipe 86 and the primary water supply pipe 89, which are embedded and cooperate with the top frame 2, and are connected to the secondary helium supply pipe 91 and the secondary water supply pipe 92. The drawn helium and water are then supplied to the primary helium supply pipe 86 and the primary water supply pipe 89 respectively, so as to achieve the corresponding drawing and supply effect of helium and water, which provides convenience for subsequent air monitoring on the ground, in the air or underground. The expansion assembly also includes a pressure relief valve 93 connected to the secondary helium supply pipe 91 and the secondary water supply pipe 92. The outer end of the pressure relief valve 93 is connected to a recovery head 94 and a return head 95 for helium and water recovery, respectively. The inner ends of the secondary helium supply pipe 91 and the secondary water supply pipe 92 are connected to an expansion ball 96 fixedly fitted to the storage rack 5. Helium or water supplied by the primary helium supply pipe 86 and the primary water supply pipe 89 is injected into the expansion ball 96 via the secondary helium supply pipe 91 and the secondary water supply pipe 92. As helium or water is continuously injected, the expansion ball 96 expands. When helium is injected, according to the characteristics of helium, the expanding expansion ball 96 drives the monitoring and sensing module inside the protective cover 4 via the storage rack 5. The ball floats into the air to monitor the air. When filled with water, the expansion ball 96 will also expand and grow larger. The expanded ball 96, through the flipped-down storage rack 5, will drive the monitoring sensor module inside the protective cover 4 to descend into the underground space to monitor the air in the underground space. When the expansion ball 96 is not filled with helium or water, the monitoring sensor module inside the protective cover 4 will monitor the air on the ground in its initial state, achieving efficient monitoring of air on the ground, in the air and underground in multiple scenarios. The expansion ball 96 is equipped with a waterproof layer 97, a reinforcing layer 98 and an inner liner layer 99 from the outside to the inside. The reinforcing layer 98 adopts a cross-woven elastic braided design to enhance the waterproof and pressure-resistant performance of the expansion ball 96. Concentration sensor 12 and liquid level sensor 13 are embedded in helium storage tank 85 and water storage tank 88 respectively, to monitor the helium gas in helium storage tank 85 and the water volume in water storage tank 88 in real time, so as to replenish them in time. Helium storage tank 85, helium suction pipe 84, primary helium transfer pipe 86 and secondary helium transfer pipe 91 are all covered with heat-insulating protective sleeves to reduce the impact of external temperature on the storage and transportation of helium gas inside. Primary helium transfer pipe 86 and primary water transfer pipe 89 are covered with sealing sleeves 14 that connect and seal with secondary helium transfer pipe 91 and secondary water transfer pipe 92, enhancing the tightness of the connection between primary helium transfer pipe 86 and primary water transfer pipe 89 and secondary helium transfer pipe 91 and secondary water transfer pipe 92. Both sides of the storage rack 5 are hinged with sealing caps 15 that cooperate with the sealing of expansion ball 96 through damping hinges, which protect the expansion ball 96.

[0023] The monitoring component also includes a wireless transceiver 104 embedded in the protective cover 4, which is wirelessly connected to the pollutant sensing module group 101, the particulate matter sensing module group 102 and the environmental parameter sensing module group 103. The pollutant sensing module group 101, the particulate matter sensing module group 102 and the environmental parameter sensing module group 103, which follow the protective cover 4 to the ground, air or underground scene, perform diverse monitoring of pollutants, particulate matter and environmental parameter data in the current air. The protective cover 4 will drive the four steel wire ropes 109 to pull upward or downward, providing traction protection for the protective cover 4, while the wireless transceiver 104 wirelessly sends the monitoring data to the back-end terminal. A lifting cylinder 105 is fixed to the other output shaft of the dual-head motor 71 via a coupling. A dual-head gear 106 is fixedly connected to the lifting cylinder 105. Lower gears 107 are arranged around the bottom of the dual-head gear 106. After the air monitoring in the aerial or underground scene is completed, the lifting cylinder 105 is first controlled to adjust the meshing stroke between the dual-head gear 106 and the four lower gears 107 to the correct position. A winding frame 108 that rotates with the top frame 2 is fixedly connected to the outer side of the lower gears 107. The dual-head motor 71 drives the four winding frames 108 to rotate and wind up the equipment through the meshed dual-head gear 106 and the four lower gears 107. The frame 108 is wound with steel wire ropes 109 that are fixedly matched with the protective cover 4 and pass through the top frame 2. The four winding frames 108 drive the four steel wire ropes 109 to wind up and reset the protective cover 4 located in the air or underground. This meets the diverse and comprehensive monitoring needs of ground, air or underground scenarios, and also facilitates the pulling protection and winding and resetting of the monitoring sensor module inside the protective cover 4. The bottom of the protective cover 4 is fixedly connected to the four sides of the top frame 2 with positioning sleeves 16 that are embedded and fixed with the four steel wire ropes 109. This not only prevents friction of the four steel wire ropes 109, but also achieves docking and positioning between the protective cover 4 and the top frame 2.

[0024] like Figures 14-16As shown, during air monitoring in aerial or underground scenarios, the monitoring sensor module inside the protective housing 4 needs to be raised or lowered. After monitoring, the protective housing 4 is retracted and reset. During this period, positioning and release functions are not available. The top frame 2 is equipped with an anti-detachment component that works with the protective housing 4. The anti-detachment component includes upper gears 111 arranged around the double-headed gear 106. When the monitoring sensor module inside the protective housing 4 monitors the air in aerial or underground scenarios, the lifting cylinder 105 is first controlled to adjust the meshing stroke between the double-headed gear 106 and the four upper gears 111. The outer side of the upper gears 111 is fixedly connected to a short lead screw 112 that rotates with the top frame 2. The double-headed motor 71 drives the four short lead screws 112 to rotate synchronously through the meshed double-headed gear 106 and the four upper gears 111. A screw sleeve 113 is threaded onto the screw 112. A sliding member 114 is fixedly connected to the top of the screw sleeve 113. The top frame 2 has inclined grooves 115 around its perimeter that slide with the sliding member 114. The four short screws 112 drive the sliding members 114 on the four sets of screw sleeves 113 to slide outward synchronously within the inclined grooves 115. A retainer 116 is fixedly connected to the top of the sliding member 114. The four corners of the protective cover 4 have slots 117 that engage with the retainer 116. The four sets of sliding members 114 drive the four sets of retainers 116 to move outward and disengage from the slots 117 at the four corners of the protective cover 4, releasing the protective cover 4 on the top frame 2. Finally, the monitoring and sensing module inside the protective cover 4 floats up into the air or falls to the ground through the expansion ball 96 filled with helium or water in the storage rack 5, enabling efficient monitoring of the air in the air or underground.

[0025] The working principle of an air monitoring device is as follows: First, the four three-stage cylinders 17 are opened and the bracket 1 drives the top frame 2, the bottom frame 3 and the protective cover 4 to move into place as a whole. Then, the pollutant sensing module group 101, the particulate matter sensing module group 102 and the environmental parameter sensing module group 103 in the protective cover 4 perform comprehensive and diverse monitoring of formaldehyde, harmful gases and volatile organic compounds, PM2.5 / PM10 and negative oxygen ions in the ground air, as well as the temperature, humidity, atmospheric pressure and air flow in the air. Then, the various parameter data obtained by monitoring are wirelessly transmitted to the back-end terminal through the wireless transceiver 104. Thus, the monitoring of ground air is completed. If it is necessary to monitor the air in the air, first control the first electric push rod 74 to open and drive the first driven gear 73 to move into the meshing part of the drive gear 72. Then control the double-head motor 71 to open and drive the cam 77 at the first driven gear 73 to rotate through the meshed drive gear 72. The cam 77 drives the piston 79 on the connecting rod 78 to reciprocate in the piston cylinder 6. The negative pressure generated by the work done in the piston cylinder 6 is transmitted to the helium suction pipe 84 through the first three-way valve 81. Under the action of negative pressure suction, the helium gas pre-filled in the helium storage tank 85 is sucked out. The sucked helium gas is then discharged to the first-stage helium delivery pipe 86 through the original route. The flow sensor 83 measures the flow rate of the sucked helium gas, and the concentration sensor 12 monitors the helium concentration in the helium storage tank 85 in real time so that helium gas can be added in time. Meanwhile, a fixed amount of helium gas discharged into the primary helium pipe 86 is injected into the expansion ball 96 in the storage rack 5 through the secondary helium pipe 91. With the waterproof layer 97, the reinforcing layer 98 and the inner liner layer 99 providing high waterproof and high pressure resistance, the expansion ball 96 expands and grows as helium gas is continuously injected. After breaking through the storage rack 5 and opening the sealing cover 15, due to the properties of helium gas, the expansion ball 96, which carries buoyancy, generates an upward force on the protective cover 4 through the storage rack 5. After the expansion ball 96 expands to the optimal shape and generates the maximum upward force on the protective cover 4, the dual-head motor 71 is first controlled to pause, and then the first electric push rod 74 is controlled to close and drive the first driven gear 73 to move outward and disengage from the meshing part of the drive gear 72 to the initial state. At this time, the work done into the expansion ball 96 and the injection of helium gas are stopped. Next, the lifting cylinder 105 is first opened, driving the double-headed gear 106 to move upward and engage with the meshing part of the four sets of upper gears 111. Then, the double-headed motor 71 is reopened, and the engaged double-headed gear 106 drives the short lead screws 112 on the four sets of upper gears 111 to rotate synchronously in reverse. The four short lead screws 112 drive the sliding parts 114 on the four sets of lead screw sleeves 113 to slide synchronously outward in the inclined slide grooves 115. The four sliding parts 114 drive the four sets of clamps 116 to simultaneously disengage from the clamps 117 at the four corners of the protective cover 4. After releasing the protective cover 4 on the top frame 2, the double-headed motor 71 is first stopped, and then the lifting is controlled. As cylinder 105 closes and drives double-headed gear 106 to move down and disengage from the meshing part of the four sets of upper gears 111 to the initial position, the expansion ball 96, which has expanded to the optimal shape, drives the protective cover 4 and the monitoring and sensing module inside it to float upward through the storage frame 5. The floating storage frame 5 also drives the secondary helium pipe 91 to disengage from the primary helium pipe 86, and the secondary water pipe 92 to disengage from the sealing sleeve 14 at the primary water pipe 89. At this time, the pressure relief valves 93 on the secondary helium pipe 91 and the secondary water pipe 92 are both closed, and the protective cover 4 drives the steel wire ropes 109 inside the four positioning sleeves 16 to pull upward. After the protective cover 4 detaches from the top frame 2 and floats into the air, similarly, the pollutant sensing module group 101, particulate matter sensing module group 102 and environmental parameter sensing module group 103 inside the protective cover 4 in the air conduct a comprehensive and diverse monitoring of formaldehyde, harmful gases and volatile organic compounds, PM2.5 / PM10 and negative oxygen ions, as well as temperature, humidity, atmospheric pressure and air flow in the air. Then, the monitored parameter data are wirelessly transmitted to the back-end terminal via the wireless transceiver 104. Thus, the monitoring of the air in the air is completed. Then, first, control the lifting cylinder 105 to open and drive the double-headed gear 106 to move down and engage with the meshing part of the four sets of lower gears 107. Then, control the double-headed motor 71 to reopen and drive the winding frame 108 on the four sets of lower gears 107 to rotate synchronously through the meshed double-headed gear 106. The four winding frames 108 drive the four steel wire ropes 109 to wind synchronously. As the length of the four steel wire ropes 109 gradually shortens, the protective cover 4 floating in the air will gradually retract downward under the winding pull of the four steel wire ropes 109 until the protective cover 4 is reset above the top frame 2. Then, re-insert the secondary helium pipe 91 into the primary helium pipe 86 and the secondary water pipe 92 into the sealing sleeve 14 at the primary water pipe 89. Then, control the pressure relief valve 93 on the secondary helium pipe 91 to open and re-recover the helium in the expansion ball 96 into the helium storage tank 85 through the external pipe at the recovery head 94. As the helium gas inside the expansion ball 96 is gradually depressurized and recovered, the expansion ball 96 also contracts into a deflated shape, losing its upward buoyancy force on the protective cover 4 and its outward squeezing force on the sealing cover 15. The damping hinge then causes the sealing cover 15 to close again, returning the expansion ball 96, now in its initial state, to be stored back in the storage rack 5. After resealing, the dual-head motor 71 is first paused; then the lifting cylinder 105 is activated, causing the dual-head gear 106 to move upward again and engage with the meshing part of the four sets of upper gears 111. Finally, the dual-head... The motor 71 is restarted and drives the short lead screws 112 on the four sets of upper gears 111 to rotate synchronously through the meshed double-headed gear 106. The four short lead screws 112 drive the sliding parts 114 on the four sets of lead screw sleeves 113 to slide synchronously in the inclined slide groove 115. The four sliding parts 114 drive the four sets of card seats 116 to lock synchronously into the card slots 117 at the four corners of the protective cover 4, thereby repositioning the protective cover 4 that has been pulled back to the top frame 2 and releasing the pulling measures of the four steel wire ropes 109 on the repositioned protective cover 4. After the air monitoring is completed, when it is necessary to monitor the underground air, first move the support 1 above the entrance of the underground shaft or cave, and then control the tilting motor 18 to tilt the top frame 2 and the bottom frame 3 so that the protective cover 4 faces downward. Similarly, first control the second electric push rod 76 to open and drive the second driven gear 75 to move inward and engage with the drive gear 72, and then control the double-head motor 71 to open and drive the piston 79 on the cam 77 and connecting rod 78 at the second driven gear 75 to reciprocate in another set of piston cylinders 6 through the engaged drive gear 72. The negative pressure suction generated in another set of piston cylinders 6 passes through the second three-way valve 82 and the water suction pipe 87 to discharge the water pre-filled in the water storage tank 88 to the first-level water supply pipe 89. Similarly, the flow sensor 83 monitors the amount of water pumped and discharged in real time, and the liquid level sensor 13 monitors the water level in the water storage tank 88 in real time so as to add water in time. Then, the water discharged to the first-level water supply pipe 89 is filled into the expansion ball 96 through the second-level water supply pipe 92. As the water is continuously filled, the expansion ball 96 also expands and grows larger, and breaks through the storage rack 5 to open the sealing cover 15. First, control the dual-head motor 71 to pause, then control the second electric push rod 76 to close and drive the second driven gear 75 to move outward, disengaging from the meshing part of the drive gear 72 to the initial position, stopping the filling of the expansion ball 96 with water. Similarly, control the four sets of locking seats 116 to disengage from the locking slots 117 at the four corners of the protective cover 4. After the limit is released, and under the action of the weight of the water, the expansion ball 96 filled with water is forced to pull the monitoring and sensing module inside the protective cover 4 down into the underground space. The falling protective cover 4 also pulls the four steel wire ropes 109 downward in the same way, waiting for the protective cover to fall. After the protective cover 4 is lowered into place, the pollutant sensing module group 101, particulate matter sensing module group 102 and environmental parameter sensing module group 103 inside the underground protective cover 4 will conduct comprehensive and diverse monitoring of formaldehyde, harmful gases and volatile organic compounds, PM2.5 / PM10 and negative oxygen ions, as well as temperature, humidity, atmospheric pressure and air flow in the underground air. The monitored parameters are then wirelessly transmitted to the back-end terminal via the wireless transceiver 104. Thus, the monitoring of underground air is completed. Similarly, the falling protective cover 4 is retrieved and reset by winding up the four steel wire ropes 109. Then, the four sets of clamps 116 are used to tighten and limit the clamps 117 at the four corners of the protective cover 4. Then, the pressure relief valve 93 on the secondary water supply pipe 92 is opened and the water in the expansion ball 96 is returned to the water storage tank 88 through the external pipe of the return head 95. As the water is lost, the expansion ball 96 shrinks into a deflated shape and is returned to the storage frame 5. Finally, the flipping motor 18 drives the protective cover 4 to flip to the upward reset state through the top frame 2 and the bottom frame 3. The four three-stage cylinders 17 are closed and the top frame 2, the bottom frame 3 and the protective cover 4 are moved down to the initial position.

[0026] It should be noted that the specific models and specifications of the dual-head motor 71, electric push rod, cylinder, tilting motor 18, and various sensors and valves need to be selected and determined according to the actual specifications of the device. The specific selection and calculation method adopts the existing technology in this field, so it will not be elaborated in detail.

[0027] The power supply circuits for the dual-head motor 71, electric push rod, cylinder, tilting motor 18, and various sensors and valves are clear to those skilled in the art and will not be described in detail here.

[0028] It is understood that the present invention has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of the invention. Furthermore, under the teachings of the present invention, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of the present invention.

Claims

1. An air monitoring device, comprising a support (1), characterized in that: The bracket (1) is rotatably connected to a top frame (2), and a base frame (3) is provided at the bottom of the top frame (2). A protective cover (4) is provided at the top of the top frame (2), and a storage rack (5) is fixedly connected to the top of the protective cover (4). A piston cylinder (6) is fixed diagonally on the outer side of the base frame (3). The base frame (3) is provided with a working component that reciprocates with the piston cylinder (6), and the working component includes a double-headed motor (71) embedded between the top frame (2) and the base frame (3). The piston cylinder (6) is provided with a suction component, and the suction component includes a first three-way valve (81) and a second three-way valve (82) respectively connected to the piston cylinder (6). The outer end of the suction component is provided with an expansion component for use with the storage rack (5), and the expansion component includes a secondary helium pipe (91) and a secondary water pipe (92) that pass through the outer end of the storage rack (5). The top frame (2) and the protective cover (4) are provided with a monitoring component for air monitoring, and the monitoring component includes a pollutant sensing module group (101), a particulate matter sensing module group (102) and an environmental parameter sensing module group (103) that are respectively embedded in the protective cover (4).

2. An air monitoring device according to claim 1, characterized in that: The power-operating component also includes a drive gear (72) fixed on one output shaft of a dual-head motor (71), and a first driven gear (73) and a second driven gear (75) are respectively provided on the outer side of the drive gear (72). A first electric push rod (74) and a second electric push rod (76) that rotate with the piston cylinder (6) are respectively fixedly connected to the outer side of the first electric push rod (74) and the second electric push rod (76). A cam (77) is fixedly connected to the outer side of the first electric push rod (74) and the second electric push rod (76). A connecting rod (78) is hinged on the cam (77), and a piston (79) that slides with the piston cylinder (6) is hinged on the connecting rod (78).

3. An air monitoring device according to claim 2, characterized in that: The suction assembly also includes a flow sensor (83) embedded in the first three-way valve (81) and the second three-way valve (82). The suction ports of the first three-way valve (81) and the second three-way valve (82) are respectively connected to a helium suction pipe (84) and a water suction pipe (87). The ends of the helium suction pipe (84) and the water suction pipe (87) are respectively connected to a helium storage tank (85) and a water storage tank (88) fixed diagonally to the top frame (2). The inlet and outlet ports of the first three-way valve (81) and the second three-way valve (82) are respectively connected to a primary helium delivery pipe (86) and a primary water delivery pipe (89) embedded in the top frame (2), and are connected to the secondary helium delivery pipe (91) and the secondary water delivery pipe (92).

4. An air monitoring device according to claim 3, characterized in that: The expansion assembly also includes a pressure relief valve (93) connected to the secondary helium pipe (91) and the secondary water pipe (92), and the outer end of the pressure relief valve (93) is connected to a recovery head (94) and a return head (95) for helium and water recovery, respectively. The inner ends of the secondary helium pipe (91) and the secondary water pipe (92) are connected to an expansion ball (96) that is fixedly matched with the storage rack (5), and the expansion ball (96) is provided with a waterproof layer (97), a reinforcing layer (98) and an inner liner layer (99) from the outside to the inside. The reinforcing layer (98) adopts a cross-woven elastic braided design.

5. An air monitoring device according to claim 4, characterized in that: The monitoring component also includes a wireless transceiver (104) embedded in the protective cover (4) and wirelessly connected to the pollutant sensing module group (101), the particulate matter sensing module group (102) and the environmental parameter sensing module group (103). A lifting cylinder (105) is fixed on the other output shaft of the dual-head motor (71) via a coupling, and a double-head gear (106) is fixedly connected to the lifting cylinder (105). Lower gears (107) are provided around the bottom of the double-head gear (106), and a winding frame (108) that rotates with the top frame (2) is fixedly connected to the outside of the lower gear (107). A steel wire rope (109) that is fixedly engaged with the protective cover (4) is wound on the winding frame (108) and penetrates the top frame (2).

6. An air monitoring device according to claim 5, characterized in that: The helium storage tank (85) and the water storage tank (88) are respectively equipped with a concentration sensor (12) and a liquid level sensor (13), and the helium storage tank (85), the helium suction pipe (84), the primary helium transfer pipe (86) and the secondary helium transfer pipe (91) are all covered with heat-insulating protective sleeves.

7. An air monitoring device according to claim 6, characterized in that: The primary helium pipe (86) and the primary water pipe (89) are fitted with sealing sleeves (14) that are connected and sealed to the secondary helium pipe (91) and the secondary water pipe (92). Both sides of the storage rack (5) are hinged with sealing caps (15) that cooperate with the expansion ball (96) for sealing.

8. An air monitoring device according to claim 7, characterized in that: The bottom of the protective cover (4) is fixedly connected with positioning sleeves (16) that are fitted into the top frame (2) and are fixed with four steel wire ropes (109).

9. An air monitoring device according to claim 8, characterized in that: Both sides of the bracket (1) are fitted with three-stage cylinders (17), and the bottom of the three-stage cylinders (17) passes through the bracket (1) and is fixedly connected to a traveling wheel with brake pads, and the top of the bracket (1) is fixedly connected to a three-color alarm light.

10. An air monitoring device according to claim 9, characterized in that: The bracket (1) is fixedly connected to a flipping motor (18) that rotates and cooperates with the top frame (2), the bottom frame (3) and the protective cover (4), and the bracket (1) is fixedly connected to a ring frame (19). The top frame (2) is provided with a side sliding opening (20) that slides and cooperates with the ring frame (19).

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