Hazardous waste sampling and detecting device and detecting method thereof

Abstract

The application relates to the technical field of hazardous waste sampling devices, in particular to a hazardous waste sampling and detecting device and a detecting method thereof, which comprises a cylinder, a handle is fixedly connected to the top of the cylinder, and a connecting rod is threadedly connected to the top of the handle; a conveying mechanism and a collecting mechanism are arranged in the cylinder; the collecting mechanism comprises a driving motor, the driving motor is bolt-connected to the top of the cylinder, and the output shaft of the driving motor is fixedly connected with a driving shaft. The piston plate extracts the high-humidity and high-viscosity hazardous waste in the inside of the stretchable folding bag through the first one-way valve into the inside of the suction cavity, meanwhile, the driving rod drives the connecting cylinder to move inward, the connecting cylinder extrudes the high-humidity and high-viscosity hazardous waste in the inside of the stretchable folding bag to move inward, the high-humidity and high-viscosity hazardous waste moves close to the area of the first one-way valve, the subsequent suction of the first one-way valve is facilitated, and the high-humidity and high-viscosity hazardous waste outside cannot be mixed with the high-humidity and high-viscosity hazardous waste in the inside of the stretchable folding bag.

Description

Technical Field

[0001] This invention relates to the field of hazardous waste sampling devices, and in particular to a hazardous waste sampling and testing device and its testing method. Background Technology

[0002] Patent CN217304442U discloses a sampler for high-moisture, high-viscosity hazardous waste, including a sampling probe and a detachable scraper threadedly connected to the sampling probe. The sampling probe is made of a straight metal tube, with a portion of the tube wall cut off at one end to form a U-shaped metal tube. The other end of the straight metal tube is threaded to connect to the scraper. The scraper is made of a stainless steel cylindrical tube, with the diameter of the stainless steel cylindrical tube being slightly smaller than the inner diameter of the U-shaped metal tube.

[0003] In the aforementioned prior art, a probe is inserted into the material to be sampled at a certain angle, and the sampler is rotated to allow the sample to enter and fill the U-shaped metal tube. During the insertion process, the material at the upper end of the sampling area is easily drawn into the U-shaped metal tube, causing the sample collected in the U-shaped metal tube to mix with the sample from other areas. Summary of the Invention

[0004] Therefore, the present invention provides a hazardous waste sampling and testing device and a testing method thereof to solve the above-mentioned technical problems.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a hazardous waste sampling and detection device and its detection method, comprising a cylinder, a handle fixedly connected to the top of the cylinder, and a connecting rod threadedly connected to the top of the handle; a conveying mechanism and a collecting mechanism are provided inside the cylinder; the collecting mechanism includes a drive motor, the drive motor is bolted to the top of the cylinder, the output shaft of the drive motor is fixedly connected to a drive shaft, the drive shaft is rotatably connected to the top of the cylinder, and a connecting frame is fixedly connected inside the cylinder; a drive shaft is rotatably connected to the connecting frame, a first bevel gear is rotatably connected to the connecting frame, an adsorption magnetic ring is fixedly connected to the inner center of the first bevel gear, and the drive shaft passes through the center of the first bevel gear and the center of the adsorption magnetic ring; a second bevel gear is rotatably connected to the connecting frame, the second bevel gear meshes with the first bevel gear, a lead screw is fixedly connected to the center of the second bevel gear, the lead screw is internally threadedly connected to a sliding rod, and the sliding rod is slidably connected to the inner side wall of the connecting frame.

[0006] Preferably, the connecting frame is provided with a suction chamber, and a piston plate is slidably connected in the suction chamber, and the piston plate is fixedly connected to the sliding rod;

[0007] The suction chamber is provided with a first one-way valve on its side wall and a second one-way valve at the bottom of the suction chamber. A channel is embedded in the side wall of the cylinder. A telescopic folding bag is fixedly connected to the side wall of the connecting frame. The telescopic folding bag wraps the liquid inlet of the first one-way valve inside. The other end of the telescopic folding bag is connected to the sealing mechanism.

[0008] Preferably, the lower end of the second one-way valve is connected to a three-way solenoid valve, one end of the three-way solenoid valve is connected to the first delivery pipe, the other end of the three-way solenoid valve is connected to the second delivery pipe, the second delivery pipe is connected to a connecting pipe, the connecting pipe is fixedly connected to the cylinder, and the other end of the first delivery pipe extends outward through the side wall of the cylinder.

[0009] Preferably, the sealing mechanism includes a connecting cylinder connected to one end of a telescopic folding bag. A main disc is fixedly connected inside the connecting cylinder. Multiple sets of first sliding grooves are embedded in the main disc. A drive gear is rotatably connected to the main disc. A drive gear ring is rotatably connected to the main disc. The drive gear ring meshes with the drive gear. A motor is bolted to the main disc. The output shaft of the motor is fixedly connected to the drive gear.

[0010] Preferably, the drive gear ring is fixedly connected to the drive disk, the drive disk is provided with multiple sets of second slide grooves, a protruding rod is slidably connected to the second slide groove, the protruding rod is fixedly connected to the closure member, and a slider is fixedly connected to the side wall of the other end of the closure member away from the protruding rod, the slider being inserted into the first slide groove.

[0011] Preferably, the conveying mechanism includes a transmission pipe, which is fixedly connected to the cylinder and connected to the conveying hose via a solenoid valve.

[0012] Preferably, the other end of the conveying hose is connected to the drive rod, the drive rod is hollow and communicates with the conveying hose, one end of the drive rod is fixedly connected to the sliding rod, and the other end of the drive rod is fixedly connected to the surface of the connecting cylinder.

[0013] Preferably, the telescopic folding bag is provided with conveying nozzles at equal intervals, and multiple sets of conveying nozzles are connected to the drive rod through a folding tube.

[0014] Preferably, the connecting frame, the first bevel gear, the adsorption magnetic ring, the second bevel gear, the lead screw, the sliding rod, the suction chamber, the piston plate, the first one-way valve, the telescopic folding bag, the sealing mechanism, the channel, the second one-way valve, the three-way solenoid valve, the first conveying pipe, the second conveying pipe, and the connecting pipe constitute a collection unit, and the collection unit is provided with multiple sets respectively arranged at the upper and lower ends of the inner cylinder.

[0015] A detection method for a hazardous waste sampling and detection device includes the following steps:

[0016] S1. The staff holds the handle or connecting rod to push the cylinder downward into the collection area. When the cylinder moves to the appropriate depth, the insertion of the cylinder is stopped.

[0017] S2. Control the operation of the collection mechanism. The drive motor inside the collection mechanism applies power to drive the first bevel gear and the second bevel gear to drive the lead screw to rotate. The lead screw drives the piston plate to move. The piston plate collects samples from the outside through the sealing mechanism.

[0018] S3. During the collection process, the sample collected by the telescopic folding bag is filled with liquid with the assistance of the conveying mechanism.

[0019] The beneficial effects of this invention are:

[0020] This invention connects a transmission pipe to an external water source, which then delivers water to the inside of a delivery hose and a drive rod. The water is then delivered to a telescopic folding bag via the drive rod and subsequently sprayed into the bag through a delivery nozzle. This process adds moisture to the highly humid and viscous hazardous waste inside, making sampling easier.

[0021] In this invention, the piston plate draws highly humid and viscous hazardous waste from inside the telescopic folding bag into the suction chamber through the first one-way valve. At the same time, the drive rod moves the connecting cylinder inward, causing the connecting cylinder to squeeze the highly humid and viscous hazardous waste inside the telescopic folding bag and move it inward. The highly humid and viscous hazardous waste moves closer to the area of ​​the first one-way valve, which facilitates the subsequent suction of the first one-way valve. This prevents the highly humid and viscous hazardous waste from the outside from mixing with the highly humid and viscous hazardous waste inside the telescopic folding bag, thereby improving the accuracy of sampling highly humid and viscous hazardous waste.

[0022] Furthermore, the movement of the corresponding piston plate can be controlled by controlling the adsorption magnetic rings at different heights, thus avoiding the need to move the sampling device while simultaneously sampling high-moisture, high-viscosity hazardous waste at different heights within the sampling area.

[0023] After use, the entire device is placed inside the cleaning liquid. The drive motor is controlled to move multiple sets of piston plates. The multiple sets of piston plates draw the external cleaning liquid into the connecting frame and discharge it outward through the second one-way valve, the second delivery pipe, and the connecting pipe, forming a cleaning circuit. This allows for automatic and convenient cleaning of the sampling device, preventing workers from coming into contact with dangerous items. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0025] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0026] Figure 3 This is a schematic diagram of the internal structure of the cylinder of the present invention;

[0027] Figure 4 This is a schematic diagram of the collection mechanism structure of the present invention. Figure 1 ;

[0028] Figure 5 This is a schematic diagram of the collection mechanism structure of the present invention. Figure 2 ;

[0029] Figure 6 This is a schematic diagram of the closed mechanism structure of the present invention. Figure 1 ;

[0030] Figure 7 This is a schematic diagram of the closed mechanism structure of the present invention. Figure 2 ;

[0031] Figure 8 This is a schematic diagram of the closed mechanism structure of the present invention. Figure 3 .

[0032] The components include: cylinder-1, handle-2, connecting rod-3, conveying mechanism-4, collecting mechanism-5, transmission pipe-41, conveying hose-42, drive rod-43, drive motor-51, drive shaft-52, connecting frame-53, first bevel gear-54, magnetic adsorption ring-55, second bevel gear-56, lead screw-57, sliding rod-58, suction chamber-59, piston plate-510, first one-way valve-511, and telescopic folding bag-51. 2. Closing mechanism - 513, Channel - 514, Second check valve - 515, Three-way solenoid valve - 5151, First delivery pipe - 516, Second delivery pipe - 517, Connecting pipe - 518, Connecting cylinder - 5131, Main disc - 5132, First slide groove - 5133, Drive gear - 5134, Drive gear ring - 5135, Drive disc - 5136, Second slide groove - 5137, Protruding rod - 5138, Closing component - 5139. Detailed Implementation

[0033] To further explain the technical solution of the present invention, a detailed description is provided below through specific embodiments.

[0034] like Figure 1 As shown, the present invention provides a hazardous waste sampling and testing device and its testing method, including a cylinder 1, a handle 2 fixedly connected to the top of the cylinder 1, and a connecting rod 3 threadedly connected to the top of the handle 2;

[0035] The cylinder 1 is equipped with a conveying mechanism 4 and a collecting mechanism 5. The cylinder 1 is also equipped with a controller and a 5G transmission module. The controller is electrically connected to the electrical components and is connected to the 5G transmission module, which allows the controller to be operated from the outside via the 5G transmission module.

[0036] like Figure 2-4 As shown, in this embodiment, the collecting mechanism 5 includes a drive motor 51, which is bolted to the top of the cylinder 1. The output shaft of the drive motor 51 is fixedly connected to the drive shaft 52, and the drive shaft 52 is rotatably connected to the top of the cylinder 1. A connecting frame 53 is fixedly connected inside the cylinder 1.

[0037] Among them, a drive shaft 52 is rotatably connected to the connecting frame 53, a first bevel gear 54 is rotatably connected to the connecting frame 53, an adsorption magnetic ring 55 is fixedly connected to the inner center of the first bevel gear 54, and the drive shaft 52 passes through the center of the first bevel gear 54 and the adsorption magnetic ring 55.

[0038] The connecting frame 53 is rotatably connected to a second bevel gear 56, which meshes with a first bevel gear 54. The center of the second bevel gear 56 is fixedly connected to a lead screw 57. The lead screw 57 is internally threaded to a sliding rod 58, and the sliding rod 58 is slidably connected to the inner side wall of the connecting frame 53.

[0039] like Figure 1-5 As shown in this embodiment, the connecting frame 53 is provided with a suction cavity 59, and a piston plate 510 is slidably connected in the suction cavity 59. The piston plate 510 is fixedly connected to the sliding rod 58; the piston plate 510 is driven to move by the sliding rod 58.

[0040] The suction chamber 59 has a first one-way valve 511 on its side wall and a second one-way valve 515 at its bottom. The cylinder 1 has a channel 514 embedded in its side wall. The connecting frame 53 has a telescopic folding bag 512 fixedly connected to its side wall. The telescopic folding bag 512 wraps the liquid inlet of the first one-way valve 511 inside. The other end of the telescopic folding bag 512 is connected to the sealing mechanism 513.

[0041] like Figure 3-8 As shown in this embodiment, the lower end of the second one-way valve 515 is connected to the three-way solenoid valve 5151. One end of the three-way solenoid valve 5151 is connected to the first delivery pipe 516, and the other end of the three-way solenoid valve 5151 is connected to the second delivery pipe 517. The sample collection is controlled to be delivered to the second delivery pipe 517 or the first delivery pipe 516 by controlling the connection port of the three-way solenoid valve 5151.

[0042] The second delivery pipe 517 is connected to the connecting pipe 518, and the connecting pipe 518 is fixedly connected to the cylinder 1. The bottom of the connecting pipe 518 penetrates the bottom of the cylinder 1, which facilitates the subsequent collection of samples to be transported to the bottom area of ​​the cylinder 1 through the connecting pipe 518, which facilitates the subsequent collection and transfer of the collected samples to the external detection device for detection. The other end of the first delivery pipe 516 extends outward through the side wall of the cylinder 1.

[0043] The closure mechanism 513 includes a connecting cylinder 5131, which is connected to one end of a telescopic folding bag 512. The telescopic folding bag 512 can expand or contract as the connecting cylinder 5131 moves. A main disk 5132 is fixedly connected inside the connecting cylinder 5131. Multiple sets of first sliding grooves 5133 are embedded in the main disk 5132. A drive gear 5134 is rotatably connected to the main disk 5132. A drive gear ring 5135 is rotatably connected to the main disk 5132. The drive gear ring 5135 meshes with the drive gear 5134. A motor is bolted to the main disk 5132. The output shaft of the motor is fixedly connected to the drive gear 5134.

[0044] like Figure 2-4 As shown in this embodiment, the drive gear ring 5135 is fixedly connected to the drive disk 5136, so that the drive gear ring 5135 drives the drive disk 5136 to rotate while rotating. The drive disk 5136 is provided with multiple sets of second sliding grooves 5137.

[0045] In this section, a protruding rod 5138 is slidably connected to the second slide groove 5137. The protruding rod 5138 is fixedly connected to the closure member 5139. A slider is fixedly connected to the other side wall of the closure member 5139 away from the protruding rod 5138. The slider is inserted into the first slide groove 5133.

[0046] like Figure 3-5 As shown, in this embodiment, the conveying mechanism 4 includes a transmission pipe 41, which is fixedly connected to the cylinder 1, providing a fixed installation area for the transmission pipe 41. The transmission pipe 41 is connected to the conveying hose 42 through a solenoid valve, which facilitates the control of conveying liquid into the conveying hose 42. The other end of the conveying hose 42 is connected to the drive rod 43, which facilitates the conveying of liquid into the drive rod 43. The drive rod 43 is hollow and communicates with the conveying hose 42. One end of the drive rod 43 is fixedly connected to the sliding rod 58, so that the sliding rod 58 can drive the drive rod 43 to move while moving. The drive rod 43 can also drive the connecting cylinder 5131 to move. The other end of the drive rod 43 is fixedly connected to the surface of the connecting cylinder 5131.

[0047] The telescopic folding bag 512 is equipped with conveying nozzles at equal intervals. Multiple sets of conveying nozzles are connected to the drive rod 43 through a folded tube, which facilitates the addition of moisture to mix the high-moisture and high-viscosity hazardous waste inside the telescopic folding bag 512.

[0048] like Figure 1-8As shown, in this embodiment, the connecting frame 53, the first bevel gear 54, the adsorption magnetic ring 55, the second bevel gear 56, the lead screw 57, the sliding rod 58, the suction chamber 59, the piston plate 510, the first one-way valve 511, the telescopic folding bag 512, the sealing mechanism 513, the channel 514, the second one-way valve 515, the three-way solenoid valve 5151, the first conveying pipe 516, the second conveying pipe 517, and the connecting pipe 518 form a collection unit, and the collection unit has multiple sets respectively set at the upper and lower ends of the inner cylinder 1; the collection unit facilitates the collection of high-moisture and high-viscosity hazardous waste at different heights.

[0049] This invention provides a hazardous waste sampling and detection device and its detection method, the working principle of which is as follows;

[0050] First, when collecting high-moisture and high-viscosity hazardous waste, the user picks up the cylinder 1 with the handle 2 and can adjust the length of the cylinder 1 by the connecting rod 3, and then inserts the cylinder 1 into the collection area. After inserting to the insertion depth, the user stops applying force to the cylinder 1.

[0051] Then, the drive motor 51 is controlled to drive the drive shaft 52 to rotate, and the magnetic ring 55 at the corresponding height is energized to generate magnetism and attract the drive shaft 52. The drive shaft 52 drives the first bevel gear 54 to rotate, the first bevel gear 54 meshes and drives the second bevel gear 56 to rotate, the second bevel gear 56 drives the lead screw 57 to rotate, and the lead screw 57 drives the sliding rod 58 to push the piston plate 510 and the drive rod 43 to move.

[0052] Second, the drive rod 43 drives the sealing mechanism 513 and the telescopic folding bag 512 to unfold outward through the channel 514 and insert into the sample collection area. After moving to a suitable depth, the control motor drives the drive gear 5134 to rotate. The drive gear 5134 applies torque to drive the drive gear ring 5135 to rotate. The drive gear ring 5135 drives the drive disk 5136 to rotate. The drive disk 5136 drives multiple sets of sealing components 5139 to rotate through the second slide groove 5137 and the protrusion 5138. The multiple sets of sealing components 5139 close the hollow part in the center of the main disk 5132, so that the space between the main disk 5132 and the telescopic folding bag 512 is in a closed state.

[0053] Third, the transmission pipe 41 can be connected to an external water source, and the water source can be transported to the inside of the transmission hose 42 and the drive rod 43 through the transmission pipe 41. Then, the water is transported to the telescopic folding bag 512 through the drive rod 43 and then sprayed into the telescopic folding bag 512 through the transmission nozzle inside the telescopic folding bag 512.

[0054] The drive motor 51 is controlled to drive the drive shaft 52 to rotate in the opposite direction. The drive shaft 52 indirectly drives the piston plate 510 to reset and move through the sliding rod 58. At the same time, the sliding rod 58 drives the drive rod 43 to reset and move.

[0055] Fourth, the piston plate 510 draws the highly humid and viscous hazardous waste from the inside of the telescopic folding bag 512 into the suction chamber 59 through the first one-way valve 511. At the same time, the drive rod 43 drives the connecting cylinder 5131 to move inward, causing the connecting cylinder 5131 to squeeze the highly humid and viscous hazardous waste inside the telescopic folding bag 512 inward. The highly humid and viscous hazardous waste moves closer to the area of ​​the first one-way valve 511, so that the space containing the highly humid and viscous hazardous waste gradually decreases as the piston plate 510 moves, which facilitates the subsequent suction of the first one-way valve 511. This prevents the highly humid and viscous hazardous waste from mixing with the highly humid and viscous hazardous waste inside the telescopic folding bag 512, thereby improving the accuracy of sampling the highly humid and viscous hazardous waste.

[0056] Furthermore, the movement of the corresponding piston plate 510 can be controlled by controlling the adsorption magnetic ring 55 at different heights, and the sampling device can be moved while sampling high-moisture and high-viscosity hazardous waste at different heights in the sampling area is carried out separately.

[0057] Fifth, after sampling is completed, the cylinder 1 is pulled outward to separate the cylinder 1 from the sampling area. When it is necessary to transfer the sample inside the cylinder 1, the piston plate 510 moves to push the sample inside through the second one-way valve 515 into the three-way solenoid valve 5151. Then, it is transported to the first delivery pipe 516 through one end of the three-way solenoid valve 5151. A collection frame can be placed below the outer end of the first delivery pipe 516. The first delivery pipe 516 transports the collected sample into the collection frame, so that samples at different heights can be collected separately.

[0058] When it is necessary to mix samples collected at different heights, the three-way solenoid valve 5151 is controlled to open the other end connected to the second delivery pipe 517, so that the sample is transported into the second delivery pipe 517 through the three-way solenoid valve 5151, and then slides down into the connecting pipe 518. Subsequently, the sample is discharged outward through the bottom of the connecting pipe 518 and collected and transferred to the detection device for data detection.

[0059] After use, the entire device is placed inside the cleaning liquid. The drive motor 51 is controlled to move multiple sets of piston plates 510. The multiple sets of piston plates 510 draw the external cleaning liquid into the connecting frame 53 and discharge it outward through the second one-way valve 515, the second delivery pipe 517, and the connecting pipe 518, forming a cleaning circuit. This allows for automatic and convenient cleaning of the sampling device, preventing staff from coming into contact with dangerous items.

[0060] This invention connects the transmission pipe 41 to an external water source, and transports the water source through the transmission pipe 41 to the inside of the delivery hose 42 and the drive rod 43. Then, the water is transported through the drive rod 43 to the telescopic folding bag 512, and then sprayed into the telescopic folding bag 512 through the delivery nozzle inside the telescopic folding bag 512. This adds moisture to the highly humid and viscous hazardous waste inside, making it easier to complete the sampling.

[0061] In this invention, the piston plate 510 draws high-moisture, high-viscosity hazardous waste from inside the telescopic folding bag 512 into the suction chamber 59 via the first one-way valve 511. Simultaneously, the drive rod 43 moves the connecting cylinder 5131 inward, causing the connecting cylinder 5131 to squeeze the high-moisture, high-viscosity hazardous waste inside the telescopic folding bag 512 inward. The high-moisture, high-viscosity hazardous waste moves closer to the area of ​​the first one-way valve 511, facilitating subsequent suction by the first one-way valve 511. This prevents the high-moisture, high-viscosity hazardous waste from mixing with the high-moisture, high-viscosity hazardous waste inside the telescopic folding bag 512, thereby improving the accuracy of sampling the high-moisture, high-viscosity hazardous waste.

[0062] Furthermore, the movement of the corresponding piston plate 510 can be controlled by controlling the adsorption magnetic ring 55 at different heights, and the sampling device can be moved while sampling high-moisture and high-viscosity hazardous waste at different heights in the sampling area is sampled separately.

[0063] After use, the entire device is placed inside the cleaning liquid. The drive motor 51 is controlled to move multiple sets of piston plates 510. The multiple sets of piston plates 510 draw the external cleaning liquid into the connecting frame 53 and discharge it outward through the second one-way valve 515, the second delivery pipe 517, and the connecting pipe 518, forming a cleaning circuit. This allows for automatic and convenient cleaning of the sampling device, preventing personnel from coming into contact with dangerous items.

[0064] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A hazardous waste sampling detection device, comprising a barrel (1), the top of the barrel (1) is fixedly connected with a handle (2), and the top of the handle (2) is threadedly connected with a connecting rod (3); characterized in that A conveying mechanism (4) and a collecting mechanism (5) are arranged in the barrel (1); The collecting mechanism (5) comprises a driving motor (51), the driving motor (51) is boltedly connected with the top of the barrel (1), the output shaft of the driving motor (51) is fixedly connected with a driving shaft (52), the driving shaft (52) is rotatably connected with the top of the barrel (1), and an adapter frame (53) is fixedly connected in the barrel (1); The adapter frame (53) is rotatably connected with the driving shaft (52), the adapter frame (53) is rotatably connected with a first bevel gear (54), the first bevel gear (54) is fixedly connected with a magnetic ring (55) at the center of the inner circle, and the driving shaft (52) penetrates the center of the first bevel gear (54) and the magnetic ring (55); The adapter frame (53) is rotatably connected with a second bevel gear (56), the second bevel gear (56) is meshed with the first bevel gear (54), the second bevel gear (56) is fixedly connected with a lead screw (57) at the center, the lead screw (57) is threadedly connected with a sliding rod (58), and the sliding rod (58) is slidably connected with the inner side wall of the adapter frame (53); an suction cavity (59) is arranged in the adapter frame (53), a piston plate (510) is slidably connected in the suction cavity (59), and the piston plate (510) is fixedly connected with the sliding rod (58); A first one-way valve (511) is arranged on the side wall of the suction cavity (59), a second one-way valve (515) is arranged at the bottom of the suction cavity (59), a channel (514) is embedded in the side wall of the barrel (1), a telescopic folding bag (512) is fixedly connected with the side wall of the adapter frame (53), the telescopic folding bag (512) wraps the liquid inlet of the first one-way valve (511) in, and the other end of the telescopic folding bag (512) is connected with a sealing mechanism (513); The second one-way valve (515) is connected with a three-way electromagnetic valve (5151) at the lower end, one end of the three-way electromagnetic valve (5151) is connected with a first conveying pipe (516), the other end of the three-way electromagnetic valve (5151) is connected with a second conveying pipe (517), the second conveying pipe (517) is communicated with an adapter pipe (518), the adapter pipe (518) is fixedly connected with the barrel (1), and the other end of the first conveying pipe (516) extends outwardly through the side wall of the barrel (1).

2. The hazardous waste sampling and testing device of claim 1, wherein: The closing mechanism (513) comprises a connecting barrel (5131) connected with one end of the telescopic folding bag (512), a main disc (5132) fixedly connected in the connecting barrel (5131), a plurality of first sliding grooves (5133) embedded on the main disc (5132), a driving gear (5134) rotatably connected to the main disc (5132), a driving gear ring (5135) rotatably connected to the main disc (5132) and engaged with the driving gear (5134), and a motor bolted to the main disc (5132) and having an output shaft fixedly connected with the driving gear (5134).

3. The hazardous waste sampling and testing device of claim 2, wherein: The driving gear ring (5135) is fixedly connected with a driving disc (5136), a plurality of second sliding grooves (5137) are arranged on the driving disc (5136), a convex rod (5138) is slidably connected to the second sliding grooves (5137), the convex rod (5138) is fixedly connected with a closing piece (5139), and a sliding block is fixedly connected to a side wall of the other end of the closing piece (5139) away from the convex rod (5138) and inserted into the first sliding groove (5133).

4. The hazardous waste sampling and testing device of claim 1, wherein: The conveying mechanism (4) comprises a transmission pipe (41) fixedly connected with the barrel (1) and connected with a conveying hose (42) through an electromagnetic valve.

5. The hazardous waste sampling and testing device of claim 4, wherein: The other end of the conveying hose (42) is connected with a driving rod (43) in communication with the conveying hose (42) in a hollow manner, one end of the driving rod (43) is fixedly connected with a sliding rod (58), and the other end of the driving rod (43) is fixedly connected with the surface of the connecting barrel (5131).

6. The hazardous waste sampling and testing device of claim 1, wherein: A plurality of conveying nozzles are equidistantly arranged in the telescopic folding bag (512) and in communication with the driving rod (43) through a folding pipe.

7. The hazardous waste sampling and testing device of claim 1, wherein: The connecting frame (53), the first bevel gear (54), the adsorption magnetic ring (55), the second bevel gear (56), the lead screw (57), the sliding rod (58), the suction cavity (59), the piston plate (510), the first check valve (511), the telescopic folding bag (512), the closing mechanism (513), the channel (514), the second check valve (515), the three-way electromagnetic valve (5151), the first conveying pipe (516), the second conveying pipe (517), and the connecting pipe (518) constitute a collection unit, and the collection unit is provided with a plurality of upper and lower ends arranged in the barrel (1).

8. A detection method of a hazardous waste sampling and detecting device, using the hazardous waste sampling and detecting device of claim 1, characterized in that: The method comprises the following steps: S1, an operator holds the handle (2) or the connecting rod (3) to drive the barrel (1) to be inserted into a collection area downward, and stops the insertion of the barrel (1) when the barrel (1) moves to a proper depth; S2, the driving motor (51) in the collection mechanism (5) is powered to drive the first bevel gear (54) and the second bevel gear (56) to drive the lead screw (57) to rotate, the lead screw (57) drives the piston plate (510) to move, and the piston plate (510) collects samples outside through the closing mechanism (513). S3, in the process of collecting, through the aid of the conveying mechanism (4), the sample filling liquid of the telescopic folding bag (512) is collected.

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