Sampling device for air pollution control and use method thereof

Abstract

The invention discloses a sampling device for air pollution abatement and a using method thereof, and relates to the technical field of sampling devices.The sampling device comprises a tripod, a connecting rod is fixedly mounted at the top of the tripod, a sampling and collecting mechanism is arranged at the top of the connecting rod, and the sampling and collecting mechanism comprises a collecting module and an output module; an air inlet pipe is fixedly mounted on a collecting module of the sampling and collecting mechanism, a fixing frame is fixedly mounted on the circumferential surface of a connecting rod, a sampling bottle is fixedly mounted on the inner wall of the fixing frame, and an output module of the sampling and collecting mechanism is communicated with the interior of the sampling bottle through an air pipe. The sliding box can be quickly disassembled through standard operation, so that the overall sampling efficiency can be improved, air and particulate matters can be sampled at the same time, and more accurate data support is provided for air pollution abatement.

Description

Technical Field

[0001] The present invention relates to the technical field of sampling devices, and in particular to a sampling device for air pollution control and a use method thereof. Background Art

[0002] In air pollution control, sampling devices are key equipment used to obtain data on pollutants in the air. Through these devices, the content of harmful substances in the air can be accurately measured, helping environmental monitoring and pollution source analysis.

[0003] The patent with patent announcement number CN220690590U relates to a sampling device for air pollution control, including a collecting box, a dirt collecting box fixedly installed at the bottom of the collecting box, a base fixedly installed at the bottom of the dirt collecting box, a universal wheel fixedly installed at the bottom of the base, an air outlet pipe fixedly installed at the top of the collecting box, a water tank fixedly installed at the top of the base, a cleaning mechanism is arranged at the top of the collecting box, and an air intake mechanism is arranged on the right side of the collecting box. The cleaning mechanism includes a rotating component and a snap-on component, the rotating component is arranged at the top of the collecting box, and the snap-on component is arranged inside the collecting box. By brushing the inner wall of the device, the brush block can be removed and cleaned through the snap-on component, thereby reducing the influence of dust on the sampling and detection results. By adjusting the angle of the air guide cover, the air intake mechanism can sample air from multiple directions, thereby greatly improving the sampling efficiency.

[0004] The above patent has the function of improving sampling efficiency. The brush block can be disassembled for cleaning through the snap-on assembly to reduce the impact of dust on the sampling detection results. The angle of the air guide cover can be adjusted so that the air intake mechanism can sample air from multiple directions. However, during the sampling process, in order to ensure the accuracy of the sampling, the operator not only needs to collect the air itself, but also needs to effectively collect the particulate matter in the air to ensure the rationality of the atmospheric pollution control data. However, the filter plate will cause the intercepted particulate matter to be lost during the disassembly process, which directly increases the difficulty of the sampling work, and then leads to the measurement deviation of the pollutant concentration, affecting the reliability of the final detection results. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a sampling device for air pollution control and a method of using the same, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a sampling device for air pollution control, comprising a tripod, a connecting rod is fixedly installed on the top of the tripod, a sampling and collecting mechanism is arranged on the top of the connecting rod, the sampling and collecting mechanism comprises a collecting module and an output module, the collecting module of the sampling and collecting mechanism is fixedly installed with an air inlet pipe, a fixing frame is fixedly installed on the circumferential surface of the connecting rod, a sampling bottle is fixedly installed on the inner wall of the fixing frame, the output module of the sampling and collecting mechanism is connected with the inside of the sampling bottle through the air pipe, and also comprises a collecting device; wherein, the collecting device comprises a loading frame, a sliding box, a lifting plate, a filter plate, a sliding block, a No. 1 spring, a hollow rod, a T-shaped rod, an L-shaped plate and a supporting rod, the T-shaped rod is pushed to move upward, the movement of the T-shaped rod drives the L-shaped plate to move upward, and at the same time, the movement of the T-shaped rod drives the hollow rod to move upward, the loading frame is fixedly installed on a side of the air inlet pipe away from the sampling and collecting mechanism, The surface of the loading frame is provided with a rectangular slide groove, the sliding box is arranged on the rectangular slide groove, the lifting plate slides through the top of the sliding box, the filter plate is fixedly installed in the interior of the lifting plate, the sliding block slides through the surface of the lifting plate, the No. 1 spring is arranged between the sliding block and the lifting plate, the hollow rod is fixedly installed on the side of the sliding block away from the lifting plate, the hollow rod slides through the inner and outer walls of the sliding box, the T-shaped rod slides through the side of the hollow rod away from the lifting plate, the L-shaped plate is fixedly installed on the circumferential surface of the T-shaped rod, pulling the T-shaped rod to move in the direction away from the sliding box, the movement of the T-shaped rod drives the L-shaped plate to move in the direction away from the sliding box, the support rod is fixedly installed on the surface of the sliding box, and a rectangular groove is provided on the bottom of the inner wall of the loading frame; wherein, an auxiliary device for pushing the support rod is provided on the loading frame, and a protective device for controlling the pushing speed of the support rod is provided on the auxiliary device.

[0007] According to the above technical solution, a through groove is provided on the circumferential surface of the hollow rod, the L-shaped plate contacts the inner wall of the through groove, an arc surface is provided on the side of the L-shaped plate close to the sliding box, and a limiting groove is provided on the side of the sliding box close to the L-shaped plate. The L-shaped plate separates from the limiting groove during movement, so that the limitation on the sliding block is released.

[0008] According to the above technical solution, an arc-shaped slide groove is provided on one side of the loading frame close to the support rod, and the circumferential surface of the support rod contacts the inner wall of the arc-shaped slide groove. When the support rod moves, the loading frame provides support for the support rod through the arc-shaped slide groove.

[0009] According to the above technical scheme, it also includes an auxiliary device and a protective device; the auxiliary device includes a hollow plate, a telescopic rod, a contact plate, a trapezoidal plate, a No. 2 spring, a linkage block, a limit rod and a No. 3 spring. The trapezoidal plate stretches the No. 2 spring during movement, and the No. 2 spring is deformed by the stretching. The hollow plate is fixedly mounted on the surface of the loading frame, the telescopic rod slides through the inner and outer walls of the hollow plate, the contact plate is fixedly mounted on a side of the telescopic rod close to the support rod, the trapezoidal plate is fixedly mounted on a side of the telescopic rod away from the contact plate, the No. 2 spring is arranged between the trapezoidal plate and the hollow plate, the linkage block is fixedly mounted on the surface of the trapezoidal plate, the limit rod slides through the inner and outer walls of the hollow plate, the No. 3 spring is arranged between the limit rod and the hollow plate, and the contact plate away from the telescopic rod is provided with an arc surface 2, the arc surface 2 is in contact with the circumferential surface of the support rod, and the support rod contacts the arc surface 2 of the contact plate during movement, so that the movement of the support rod drives the contact plate to move in the direction of the limit rod.

[0010] According to the above technical solution, a hole groove is provided on one side of the trapezoidal plate close to the limiting rod, and a spherical surface 1 is provided on one side of the limiting rod close to the trapezoidal plate. The spherical surface 1 contacts the inner wall of the hole groove. During the movement, the spherical surface 1 of the limiting rod is separated from the surface in contact with the hole groove, resulting in the release of the limit imposed on the trapezoidal plate by the limiting rod.

[0011] According to the above technical scheme, the protective device includes a fixed rod, a C-shaped frame, multiple carrying rods, a rotating shaft, an arc piece, a knocking plate and an L-shaped block. The linkage block contacts the inner concave surface of the arc piece during movement, so that the linkage block continues to move and squeeze the arc piece. The fixed rod is fixedly installed on the inner and outer walls of the hollow plate. The C-shaped frame is fixedly installed on the side of the fixed rod close to the hollow plate. Multiple carrying rods are fixedly installed on the inner and outer walls of the C-shaped frame. The rotating shaft is rotatably installed on the surface of the carrying rod. The arc piece is fixedly installed on the circumferential surface of the rotating shaft. The linkage block contacts the curved surface of the arc piece during movement. The movement of the linkage block drives the arc piece to rotate in the direction away from the contact plate. The knocking plate is fixedly installed on the circumferential surface of the arc piece. The L-shaped block is fixedly installed on the inner wall of the C-shaped frame.

[0012] According to the above technical solution, a spiral spring is arranged between the rotating shaft and the carrying rod. The rotating shaft stretches the spiral spring during rotation, and the spiral spring is deformed due to the stretching. The arc-shaped sheet itself is elastic, and the spacing between the carrying rods is equal.

[0013] According to the above technical solution, a third arc surface is provided on one side of the L-shaped block close to the knocking plate, and the third arc surface contacts a side of the knocking plate away from the contact plate. The rotation of the arc piece drives the knocking plate to rotate rapidly toward the direction of the L-shaped block, and the knocking plate collides with the third arc surface during rotation.

[0014] A method for using a sampling device for air pollution control, using the above-mentioned sampling device for air pollution control, comprises the following steps: Step 1: Push the T-shaped rod to move upward, the movement of the T-shaped rod drives the hollow rod to move upward, the movement of the hollow rod drives the sliding block to move upward, and the movement of the sliding block drives the lifting plate to move upward; Step 2: The lifting plate moves to drive the filter plate to move upward, and the top of the lifting plate contacts the inner wall of the loading frame during the movement, so that the lifting plate is blocked and stops moving; Step 3: Control the T-shaped rod to move toward the sliding box, and the movement of the T-shaped rod drives the L-shaped plate to move toward the sliding box, and the arc surface of the L-shaped plate passes through the limit groove during the movement; Step 4: Start the sampling and collecting mechanism to collect air. The air comes into contact with the filter plate during the collection process, and the air collected by the sampling and collecting mechanism moves to the interior of the sampling bottle through the air pipe.

[0015] The present invention provides a sampling device for air pollution control, which has the following beneficial effects: (1) In the sampling device for air pollution control, spring No. 1 applies an upward thrust to the lifting plate. By squeezing spring No. 1, the lifting plate is ensured to maintain close contact with the loading frame, so that the filter plate can fully exert its filtering effect, thereby improving the overall quality of air sampling. At the same time, when the lifting plate moves to the inside of the sliding box, the particulate matter is effectively collected in the sliding box. The sliding box can be quickly disassembled through standardized operations, which helps to improve the overall efficiency of sampling and realizes the simultaneous sampling of air and particulate matter, providing more accurate data support for air pollution control.

[0016] (2) In the sampling device for air pollution control, the contact plate applies a thrust to the support rod, so that the movement of the contact plate drives the movement of the support rod. When the sliding box is removed, the contact plate applies an additional thrust to the support rod, which effectively speeds up the removal process and reduces the physical burden of the operator, thereby ensuring the stability of the sampling work. At the same time, the limit rod contacts the inner wall of the hole groove during movement. When the sliding box is installed, the limit rod automatically applies a limit to the trapezoidal plate, ensuring that the contact plate can be quickly activated, thereby effectively improving the stability during the continuous sampling process.

[0017] (3) In the sampling device for air pollution control, the linkage block squeezes the arc-shaped piece, so that the moving speed of the linkage block is effectively controlled. Intermittent resistance is applied to the linkage block by multiple arc-shaped pieces, which effectively controls the speed at which the contact plate pushes the support rod to move, thereby avoiding accidents caused by excessive pushing speed. At the same time, the knocking plate collides with the L-shaped block during rotation to generate vibration. When the sliding box is installed, the knocking plate collides with the L-shaped block to generate vibration, which helps to improve the smoothness of the overall movement, ensure the stable progress of the sampling work, and improve the practicality of the knocking plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the sampling and collecting mechanism and the position structure of the sampling bottle of the present invention; Figure 3 This is a schematic diagram of the position structure of the support rod and the contact plate of the present invention; Figure 4 This is a schematic diagram of the internal structure of the loading frame of the present invention; Figure 5 This is a schematic diagram of the internal structure of the acquisition device of the present invention; Figure 6 It is a schematic diagram of the position structure of the auxiliary device and the protective device of the present invention; Figure 7 It is a schematic diagram of the internal structure of the auxiliary device of the present invention; Figure 8 It is a schematic diagram of the internal structure of the protective device of the present invention.

[0019] In the figure: 1. tripod; 2. connecting rod; 3. sampling and collecting mechanism; 4. air inlet pipe; 5. fixing frame; 6. sampling bottle; 7. loading frame; 8. sliding box; 9. lifting plate; 10. filter plate; 11. sliding block; 12. spring No. 1; 13. hollow rod; 14. T-shaped rod; 15. L-shaped plate; 16. supporting rod; 171. hollow plate; 172. telescopic rod; 173. contact plate; 174. trapezoidal plate; 175. spring No. 2; 176. linkage block; 177. limiting rod; 178. spring No. 3; 181. fixing rod; 182. C-shaped frame; 183. carrying rod; 184. rotating shaft; 185. arc piece; 186. knocking plate; 187. L-shaped block. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0021] See also Figure 1-Figure 8, one embodiment of the present invention is: a sampling device for air pollution control, comprising a tripod 1, a connecting rod 2 is fixedly installed on the top of the tripod 1, a sampling and collecting mechanism 3 is arranged on the top of the connecting rod 2, the sampling and collecting mechanism 3 comprises a collecting module and an output module, the collecting module of the sampling and collecting mechanism 3 is fixedly installed with an air inlet pipe 4, a fixing frame 5 is fixedly installed on the circumferential surface of the connecting rod 2, a sampling bottle 6 is fixedly installed on the inner wall of the fixing frame 5, the output module of the sampling and collecting mechanism 3 is connected with the inside of the sampling bottle 6 through the air pipe, and also comprises a collecting device; wherein the collecting device comprises a loading frame 7, a sliding box 8, a lifting plate 9, a filter plate 10, a sliding block 11, a No. 1 spring 12, a hollow rod 13, a T-shaped rod 14, an L-shaped plate 15 and a support rod 16, the loading frame 7 is fixedly installed on the side of the air inlet pipe 4 away from the sampling and collecting mechanism 3, a rectangular slide groove is provided on the surface of the loading frame 7, the sliding box 8 is arranged on the rectangular slide groove, and the lifting plate 9 is provided with a lifting plate 1 ... lifting plate 11, a filter plate 10, a lifting plate 11, a No. 1 spring 12, a hollow rod 13, a T-shaped rod 1 The lowering plate 9 slides through the top of the sliding box 8, the filter plate 10 is fixedly mounted inside the lifting plate 9, the sliding block 11 slides through the surface of the lifting plate 9, the No. 1 spring 12 is arranged between the sliding block 11 and the lifting plate 9, the hollow rod 13 is fixedly mounted on the side of the sliding block 11 away from the lifting plate 9, the hollow rod 13 slides through the inner and outer walls of the sliding box 8, the T-shaped rod 14 slides through the side of the hollow rod 13 away from the lifting plate 9, the L-shaped plate 15 is fixedly mounted on the circumferential surface of the T-shaped rod 14, the support rod 16 is fixedly mounted on the surface of the sliding box 8, and a rectangular groove is provided at the bottom of the inner wall of the loading frame 7; wherein, an auxiliary device for pushing the support rod 16 is provided on the loading frame 7, and a protective device for controlling the pushing speed of the support rod 16 is provided on the auxiliary device, and by squeezing the No. 1 spring 12, it is ensured that the lifting plate 9 maintains close contact with the loading frame 7, so that the filter plate 10 can fully play its filtering effect.

[0022] A through groove is provided on the circumferential surface of the hollow rod 13, and the L-shaped plate 15 contacts the inner wall of the through groove. A curved surface 1 is provided on one side of the L-shaped plate 15 close to the sliding box 8, and a limiting groove is provided on one side of the sliding box 8 close to the L-shaped plate 15. The sliding box 8 can be quickly disassembled through standardized operations, which helps to improve the overall efficiency of sampling and realize the simultaneous sampling of air and particulate matter.

[0023] An arc-shaped slot is provided on one side of the loading frame 7 close to the support rod 16, and the circumferential surface of the support rod 16 contacts the inner wall of the arc-shaped slot. The loading frame 7 provides the support rod 16 with necessary supporting force, so that the sliding box 8 moves more smoothly during disassembly.

[0024] A method for using a sampling device for air pollution control, using the above-mentioned sampling device for air pollution control, comprises the following steps: Step 1: Push the T-shaped rod 14 to move upward, the movement of the T-shaped rod 14 drives the hollow rod 13 to move upward, the movement of the hollow rod 13 drives the sliding block 11 to move upward, and the movement of the sliding block 11 drives the lifting plate 9 to move upward; Step 2: The lifting plate 9 moves to drive the filter plate 10 to move upward, and the top of the lifting plate 9 contacts the inner wall of the loading frame 7 during the movement, so that the lifting plate 9 is blocked and stops moving; Step 3: Control the T-shaped rod 14 to move toward the sliding box 8. The movement of the T-shaped rod 14 drives the L-shaped plate 15 to move toward the sliding box 8. The arc surface of the L-shaped plate 15 passes through the limiting groove during the movement. Step 4: Start the sampling and collecting mechanism 3 to collect air. The air contacts the filter plate 10 during the collection process, and the air collected by the sampling and collecting mechanism 3 moves to the interior of the sampling bottle 6 through the air pipe.

[0025] When the present embodiment is working, the T-shaped rod 14 is pushed to move upward, and the movement of the T-shaped rod 14 drives the L-shaped plate 15 to move upward. At the same time, the movement of the T-shaped rod 14 drives the hollow rod 13 to move upward, and the movement of the hollow rod 13 drives the sliding block 11 to move upward, and the movement of the sliding block 11 drives the lifting plate 9 to move upward, and the movement of the lifting plate 9 drives the filter plate 10 to move upward. The lifting plate 9 contacts the inner wall of the rectangular groove during the movement, so that the lifting plate 9 moves to the inside of the loading frame 7, and the top of the lifting plate 9 continues to move and contacts the inner wall of the loading frame 7, so that the lifting plate 9 is blocked and stops moving, and the T-shaped rod 14 continues to be pushed upward, and the sliding block 11 moves to squeeze the No. 1 spring 12, and the No. 1 spring 12 is squeezed and deformed, and the deformed No. 1 spring 12 exerts pressure on the lifting plate 9. The lowering plate 9 applies an upward thrust, and the lifting plate 9 affected by the thrust contacts the loading frame 7 more closely. After the sliding block 11 moves to the specified position, the T-shaped rod 14 is controlled to move toward the sliding box 8. The movement of the T-shaped rod 14 drives the L-shaped plate 15 to move toward the sliding box 8. The arc surface of the L-shaped plate 15 passes through the limiting groove during the movement, so that the L-shaped plate 15 applies a limit to the sliding block 11 moved to the specified position, and then the sampling and collecting mechanism 3 is started. The collecting module of the sampling and collecting mechanism 3 collects air through the air inlet pipe 4. The air contacts the filter plate 10 during the collection process. The filter plate 10 effectively blocks the particulate matter in the air, and the air collected by the sampling and collecting mechanism 3 moves to the inside of the sampling bottle 6 through the air pipe. By squeezing The spring 12 ensures that the lifting plate 9 maintains close contact with the loading frame 7, so that the filter plate 10 can fully play its filtering role, thereby improving the overall quality of air sampling. After the sampling is completed, the T-shaped rod 14 is pulled to move away from the sliding box 8, and the movement of the T-shaped rod 14 drives the L-shaped plate 15 to move away from the sliding box 8. The L-shaped plate 15 separates from the limiting groove during the movement, so that the limit of the sliding block 11 is released, and the T-shaped rod 14 is controlled to move downward. The movement of the T-shaped rod 14 drives the hollow rod 13 to move downward, and the movement of the hollow rod 13 drives the sliding block 11 to move downward, so that the deformed spring 12 gradually recovers, and at the same time, the movement of the sliding block 11 drives the lifting plate 9 to move downward, and the movement of the lifting plate 9 drives the filter plate 10 to move downward. The movement of the filter plate 10 drives the blocked particles to move downward. When the lifting plate 9 moves to the inside of the sliding box 8, the particles are effectively collected in the sliding box 8, and the sliding box 8 is controlled to move away from the air intake pipe 4. The movement of the sliding box 8 drives the lifting plate 9 to move away from the air intake pipe 4. At the same time, the movement of the sliding box 8 drives the support rod 16 to move away from the air intake pipe 4. When the support rod 16 moves, the loading frame 7 provides the necessary supporting force for the support rod 16 through the arc-shaped slide groove, so that the sliding box 8 moves more smoothly during disassembly. The disassembly of the sliding box 8 can be quickly completed through standardized operations, which helps to improve the overall efficiency of sampling, and realizes the simultaneous sampling of air and particulate matter, providing more accurate data support for air pollution control.

[0026] See also Figure 1-Figure 8 On the basis of the above embodiment, another embodiment of the present invention further includes an auxiliary device and a protective device; the auxiliary device includes a hollow plate 171, a telescopic rod 172, a contact plate 173, a trapezoidal plate 174, a second spring 175, a linkage block 176, a limit rod 177 and a third spring 178, the hollow plate 171 is fixedly mounted on the surface of the loading frame 7, the telescopic rod 172 slides through the inner and outer walls of the hollow plate 171, the contact plate 173 is fixedly mounted on a side of the telescopic rod 172 close to the support rod 16, and the trapezoidal plate 174 is fixedly mounted on the telescopic rod 172 On the side away from the contact plate 173, the No. 2 spring 175 is arranged between the trapezoidal plate 174 and the hollow plate 171, the linkage block 176 is fixedly installed on the surface of the trapezoidal plate 174, the limit rod 177 slides through the inner and outer walls of the hollow plate 171, and the No. 3 spring 178 is arranged between the limit rod 177 and the hollow plate 171. The side of the contact plate 173 away from the telescopic rod 172 is provided with an arc surface 2, and the arc surface 2 is in contact with the circumferential surface of the support rod 16. When the sliding box 8 is disassembled, the contact plate 173 applies additional thrust to the support rod 16, which effectively speeds up the disassembly process.

[0027] A hole groove is formed on one side of the trapezoidal plate 174 close to the limiting rod 177, and a spherical surface 1 is formed on one side of the trapezoidal plate 174 close to the limiting rod 177. The spherical surface 1 contacts the inner wall of the hole groove. When the sliding box 8 is installed, the limiting rod 177 automatically limits the trapezoidal plate 174 to ensure that the contact plate 173 can be quickly activated.

[0028] The protective device includes a fixed rod 181, a C-shaped frame 182, a plurality of carrying rods 183, a rotating shaft 184, an arc-shaped piece 185, a knocking plate 186 and an L-shaped block 187. The fixed rod 181 is fixedly passed through the inner and outer walls of the hollow plate 171. The C-shaped frame 182 is fixedly installed on a side of the fixed rod 181 close to the hollow plate 171. A plurality of carrying rods 183 are fixedly passed through the inner and outer walls of the C-shaped frame 182. The rotating shaft 184 is rotatably installed on the surface of the carrying rod 183. The arc-shaped piece 185 is fixedly installed on the circumferential surface of the rotating shaft 184. The knocking plate 186 is fixedly installed on the circumferential surface of the arc-shaped piece 185. The L-shaped block 187 is fixedly installed on the inner wall of the C-shaped frame 182. Intermittent resistance is applied to the linkage block 176 through the plurality of arc-shaped pieces 185, thereby effectively controlling the speed at which the contact plate 173 pushes the support rod 16 to move.

[0029] A spiral spring is provided between the rotating shaft 184 and the carrying rod 183. The arc-shaped piece 185 itself is elastic, and the distances between the carrying rods 183 are equal. By providing the spiral spring, it is ensured that the rotating shaft 184 can be quickly reset after rotation.

[0030] The L-shaped block 187 has an arc surface three on one side close to the knocking plate 186, and the arc surface three contacts the side of the knocking plate 186 away from the contact plate 173. When the sliding box 8 is installed, the knocking plate 186 collides with the L-shaped block 187 to generate vibration, which helps to improve the smoothness of the overall movement.

[0031] When the present embodiment is working, when the sliding box 8 is disassembled, the auxiliary device can be selected to enable, and the limit rod 177 can be manually pulled to move in the direction away from the hollow plate 171. The limit rod 177 stretches the No. 3 spring 178 during the movement, and the No. 3 spring 178 is deformed by the stretching. At the same time, the spherical surface of the limit rod 177 is separated from the surface in contact with the hole groove during the movement, resulting in the release of the limit imposed by the limit rod 177 on the trapezoidal plate 174, so that the deformed No. 2 spring 175 is restored to drive the trapezoidal plate 174 to move in the direction of the support rod 16. The movement of the trapezoidal plate 174 drives the linkage block 176 to move in the direction of the support rod 16. At the same time, the trapezoidal plate 174 is The movement of the shaped plate 174 drives the telescopic rod 172 to move in the direction of the support rod 16, and the movement of the telescopic rod 172 drives the contact plate 173 to move in the direction of the support rod 16. The arc surface 2 of the contact plate 173 applies a thrust to the support rod 16 during the movement, so that the movement of the contact plate 173 drives the support rod 16 to move away from the hollow plate 171. When the sliding box 8 is removed, the contact plate 173 applies an additional thrust to the support rod 16, which effectively speeds up the disassembly process and reduces the physical burden of the operator, thereby ensuring the stability of the sampling work. When the sliding box 8 is installed, the support rod 16 moves with the contact plate 173. The second arc surface contacts, so that the support rod 16 moves and drives the contact plate 173 to move in the direction of the limit rod 177. The movement of the contact plate 173 drives the telescopic rod 172 to move in the direction of the limit rod 177. The movement of the telescopic rod 172 drives the trapezoidal plate 174 to move in the direction of the limit rod 177. The trapezoidal plate 174 stretches the second spring 175 during the movement. The second spring 175 is stretched and deformed. At the same time, the upper inclined surface of the trapezoidal plate 174 contacts the spherical surface 1 of the limit rod 177 during the movement. The trapezoidal plate 174 moves and squeezes the spherical surface 1. The limit rod 177 is squeezed and moves in the direction away from the hollow plate 171. The limit rod 177 moves. The No. 3 spring 178 is stretched during the movement, and the No. 3 spring 178 is deformed by the stretching. When the trapezoidal plate 174 moves to the specified position, the surface in contact with the spherical surface 1 is separated, so that the deformed No. 3 spring 178 is restored to drive the limit rod 177 to move toward the hollow plate 171. The spherical surface 1 of the limit rod 177 contacts the inner wall of the hole groove during the movement, so that the limit rod 177 automatically applies a limit to the trapezoidal plate 174 moved to the specified position. When the sliding box 8 is installed, the limit rod 177 automatically applies a limit to the trapezoidal plate 174, ensuring that the contact plate 173 can be quickly activated, thereby effectively improving the stability during the continuous sampling process; When the linkage block 176 moves toward the contact plate 173, the linkage block 176 contacts the inner concave surface of the arc piece 185 during the movement. Since the arc surface 3 of the L-shaped block 187 contacts the knocking plate 186, the rotation of the arc piece 185 toward the contact plate 173 is restricted, causing the linkage block 176 to continue to move and squeeze the arc piece 185. The arc piece 185 is squeezed and bends. The curved arc piece 185 exerts additional resistance on the linkage block 176. The speed of the linkage block 176 is slowed down by the additional resistance, so that the speed at which the contact plate 173 pushes the support rod 16 to move is controlled. When the linkage block 176 moves toward the contact plate 173, the arc piece 185 is pushed and bent. When the surface of the contacting arc piece 185 is separated, the arc piece 185 automatically recovers under the action of its own elasticity, and the linkage block 176 continues to move and contact with multiple arc pieces 185. The linkage block 176 repeats the above movement to squeeze the arc pieces 185, so that the moving speed of the linkage block 176 is effectively controlled in the intermittent contact. The multiple arc pieces 185 apply intermittent resistance to the linkage block 176, effectively controlling the speed at which the contact plate 173 pushes the support rod 16 to move, avoiding accidents caused by excessive pushing speed. When the linkage block 176 moves in the direction away from the contact plate 173, the linkage block 176 moves in the direction away from the contact plate 173. The curved surface of the arc-shaped piece 185 is in contact, and the linkage block 176 moves to drive the arc-shaped piece 185 to rotate in the direction away from the contact plate 173. The rotation of the arc-shaped piece 185 drives the rotating shaft 184 to rotate in the direction away from the contact plate 173. The rotating shaft 184 stretches the volute spring during rotation, and the volute spring is deformed by the stretching. At the same time, the arc-shaped piece 185 rotates to drive the knocking plate 186 to rotate in the direction away from the L-shaped block 187. The knocking plate 186 is separated from the curved surface of the L-shaped block 187 during rotation. At the same time, the linkage block 176 continues to move and separates from the curved surface of the arc-shaped piece 185, so that the deformed volute spring drives the rotating shaft 184 Quick reset, the reset of the rotating shaft 184 drives the arc piece 185 to rotate rapidly toward the contact plate 173, and the rotation of the arc piece 185 drives the knocking plate 186 to rotate rapidly toward the L-shaped block 187. The knocking plate 186 collides with the arc surface 3 during rotation to generate vibration, and the L-shaped block 187 transmits the vibration generated by the collision to the moving limit rod 177, so that the limit rod 177 can contact the inner wall of the hole groove more smoothly. When the sliding box 8 is installed, the knocking plate 186 collides with the L-shaped block 187 to generate vibration, which helps to improve the smoothness of the overall movement, ensure the stable sampling work, and improve the practicality of the knocking plate 186.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sampling device for air pollution control, comprising a tripod (1), characterized in that: A connecting rod (2) is fixedly mounted on the top of the tripod (1); a sampling and collecting mechanism (3) is arranged on the top of the connecting rod (2); the sampling and collecting mechanism (3) comprises a collecting module and an output module; an air inlet pipe (4) is fixedly mounted on the collecting module of the sampling and collecting mechanism (3); a fixing frame (5) is fixedly mounted on the circumferential surface of the connecting rod (2); a sampling bottle (6) is fixedly mounted on the inner wall of the fixing frame (5); the output module of the sampling and collecting mechanism (3) is connected to the interior of the sampling bottle (6) via the air pipe; and a collecting device is also included; The collection device comprises a loading frame (7), a sliding box (8), a lifting plate (9), a filter plate (10), a sliding block (11), a No. 1 spring (12), a hollow rod (13), a T-shaped rod (14), an L-shaped plate (15) and a support rod (16); the loading frame (7) is fixedly mounted on a side of the air inlet pipe (4) away from the sampling and collecting mechanism (3); a rectangular slide groove is provided on the surface of the loading frame (7); the sliding box (8) is arranged on the rectangular slide groove; the lifting plate (9) slides through the top of the sliding box (8); the filter plate (10) is fixedly mounted inside the lifting plate (9); the sliding box (8) is arranged on the surface of the loading frame (7); The block (11) slides through the surface of the lifting plate (9), the first spring (12) is arranged between the sliding block (11) and the lifting plate (9), the hollow rod (13) is fixedly mounted on the side of the sliding block (11) away from the lifting plate (9), the hollow rod (13) slides through the inner and outer walls of the sliding box (8), the T-shaped rod (14) slides through the side of the hollow rod (13) away from the lifting plate (9), the L-shaped plate (15) is fixedly mounted on the circumferential surface of the T-shaped rod (14), the support rod (16) is fixedly mounted on the surface of the sliding box (8), and a rectangular groove is provided at the bottom of the inner wall of the loading frame (7); Wherein, an auxiliary device for pushing the support rod (16) is provided on the loading frame (7), and a protective device for controlling the pushing speed of the support rod (16) is provided on the auxiliary device.

2. The sampling device for air pollution control according to claim 1, characterized in that: A through groove is formed on the circumferential surface of the hollow rod (13), the L-shaped plate (15) contacts the inner wall of the through groove, a curved surface is formed on one side of the L-shaped plate (15) close to the sliding box (8), and a limiting groove is formed on one side of the sliding box (8) close to the L-shaped plate (15).

3. The sampling device for air pollution control according to claim 2, characterized in that: An arc-shaped sliding groove is provided on a side of the loading frame (7) close to the support rod (16), and the circumferential surface of the support rod (16) contacts the inner wall of the arc-shaped sliding groove.

4. The sampling device for air pollution control according to claim 3 is characterized in that: The auxiliary device comprises a hollow plate (171), a telescopic rod (172), a contact plate (173), a trapezoidal plate (174), a second spring (175), a linkage block (176), a limit rod (177) and a third spring (178); the hollow plate (171) is fixedly mounted on the surface of the loading frame (7); the telescopic rod (172) slides through the inner and outer walls of the hollow plate (171); the contact plate (173) is fixedly mounted on a side of the telescopic rod (172) close to the support rod (16); and the trapezoidal plate (174) is fixedly mounted on the telescopic rod ( The second spring (175) is arranged between the trapezoidal plate (174) and the hollow plate (171), the linkage block (176) is fixedly mounted on the surface of the trapezoidal plate (174), the limit rod (177) slides through the inner and outer walls of the hollow plate (171), the third spring (178) is arranged between the limit rod (177) and the hollow plate (171), and the contact plate (173) is provided with an arc surface 2 on a side away from the telescopic rod (172), and the arc surface 2 contacts the circumferential surface of the support rod (16).

5. The sampling device for air pollution control according to claim 4, characterized in that: A hole groove is formed on one side of the trapezoidal plate (174) close to the limiting rod (177), and a spherical surface 1 is formed on one side of the limiting rod (177) close to the trapezoidal plate (174), wherein the spherical surface 1 contacts the inner wall of the hole groove.

6. The sampling device for air pollution control according to claim 5, characterized in that: The protective device comprises a fixed rod (181), a C-shaped frame (182), a plurality of carrying rods (183), a rotating shaft (184), an arc-shaped sheet (185), a knocking plate (186) and an L-shaped block (187); the fixed rod (181) is fixedly mounted on the inner and outer walls of the hollow plate (171); the C-shaped frame (182) is fixedly mounted on a side of the fixed rod (181) close to the hollow plate (171); the plurality of carrying rods (183) are fixedly mounted on the inner and outer walls of the C-shaped frame (182); the rotating shaft (184) is rotatably mounted on the surface of the carrying rod (183); the arc-shaped sheet (185) is fixedly mounted on the circumferential surface of the rotating shaft (184); the knocking plate (186) is fixedly mounted on the circumferential surface of the arc-shaped sheet (185); and the L-shaped block (187) is fixedly mounted on the inner wall of the C-shaped frame (182).

7. The sampling device for air pollution control according to claim 6, characterized in that: A spiral spring is provided between the rotating shaft (184) and the carrying rod (183); the arc-shaped sheet (185) itself has elasticity; and the spacings between the carrying rods (183) are all equal.

8. The sampling device for air pollution control according to claim 7, characterized in that: A third arc surface is formed on a side of the L-shaped block (187) close to the striking plate (186), and the third arc surface is in contact with a side of the striking plate (186) away from the contact plate (173).

9. A method for using a sampling device for air pollution control, using the sampling device for air pollution control according to claim 8, characterized in that: The following steps are involved: Step 1: Push the T-shaped rod (14) to move upwards, the movement of the T-shaped rod (14) drives the hollow rod (13) to move upwards, the movement of the hollow rod (13) drives the sliding block (11) to move upwards, and the movement of the sliding block (11) drives the lifting plate (9) to move upwards; Step 2: The lifting plate (9) moves to drive the filter plate (10) to move upward, and the top of the lifting plate (9) contacts the inner wall of the loading frame (7) during the movement, so that the lifting plate (9) is blocked and stops moving; Step 3: Control the T-shaped rod (14) to move toward the sliding box (8), so that the movement of the T-shaped rod (14) drives the L-shaped plate (15) to move toward the sliding box (8), and the arc surface of the L-shaped plate (15) passes through the limit groove during the movement; Step 4: Start the sampling and collecting mechanism (3) to collect air. During the collection process, the air comes into contact with the filter plate (10), and the air collected by the sampling and collecting mechanism (3) moves to the interior of the sampling bottle (6) through the air pipe.

Images