Tailings pond sampling device

Abstract

The present invention provides a tailings pond sampling device, which belongs to the technical field of sampling devices and includes a vehicle body, a sampling tube, a closed shaft, a first annular member and a gravity block. Vehicle body plate. The sampling tube slides through the vehicle plate, and a first internal thread is provided in the sampling tube. The closed shaft is coaxially arranged in the sampling tube and is provided with a first external thread threadedly connected to the first internal thread. The bottom of the closed shaft is a tapered portion, and the first annular member is located above the vehicle plate. The first annular member is coaxially sleeved outside the sampling tube and is connected to the sampling tube. The gravity block is in the shape of a circular ring and coaxially sleeved outside the sampling tube. The gravity block is located above the first annular member. The tailings pond sampling device provided by the present invention can avoid the problem of repeated sampling multiple times when sampling deep in the tailings pond, which is a more cumbersome problem.

Description

Technical Field

[0001] The present invention belongs to the technical field of sampling devices, and more specifically, relates to a tailings pond sampling device. Background Art

[0002] Tailings ponds are constructed by damming valley mouths or enclosing land to store tailings or other industrial waste discharged from metal or non-metallic mines after ore sorting. To carry out ecological restoration and pollution control, tailings ponds require sampling using sampling devices. Sampling deep within tailings ponds requires repeated insertion of existing sampling devices into the upper tailings before sampling deeper tailings, which is cumbersome. Summary of the Invention

[0003] The purpose of the present invention is to provide a tailings pond sampling device, which aims to solve the problem that when sampling deep in the tailings pond, repeated sampling is required, which is relatively cumbersome.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: to provide a tailings pond sampling device, including a vehicle body, a sampling tube, a closed shaft, a first annular member and a gravity block. The vehicle body has a horizontally arranged vehicle plate. The sampling tube is vertically arranged and slides through the vehicle plate, and the upper part of the sampling tube is provided with a first internal thread. The closed shaft is coaxially arranged in the sampling tube and is provided with a first external thread threadedly connected to the first internal thread. The bottom of the closed shaft is a conical portion with a conical structure, and the cone tip of the conical portion faces downward. When the closed shaft is raised or lowered, the conical portion can penetrate the sampling tube upward or exit the sampling tube downward. The first annular member is located above the vehicle plate, and the first annular member is coaxially sleeved outside the sampling tube and connected to the sampling tube. The gravity block is annular and coaxially sleeved outside the sampling tube. The gravity block is located above the first annular member, and the gravity block is used to knock the first annular member downward.

[0005] In one possible implementation, the first annular member is capable of sliding up and down, the outer sidewall of the upper portion of the sampling tube has a protruding portion protruding outward, and the protruding portion is provided with a second external thread. The tailings pond sampling device further includes a second annular member and a connecting shaft. The second annular member is located above the first annular member, and the second annular member is sleeved outside the second external thread and is provided with a second internal thread threadedly connected to the second external thread. There are two connecting shafts, which are vertically arranged and located between the first annular member and the second annular member. The upper and lower ends of the connecting shafts are fixedly connected to the first annular member and the second annular member, respectively, and the connecting shafts slide through the gravity block.

[0006] In one possible implementation, the outer wall of the gravity block protrudes outward to the radially outer side of the first annular member, and the tailings pond sampling device further includes a positioning plate and a plurality of positioning pins. The positioning plate is horizontally arranged and located above the vehicle plate, and the middle portion of the positioning plate is provided with a through hole coaxially arranged with the first annular member. A plurality of positioning pins are fixed on the bottom surface of the positioning plate, the positioning pins are vertically arranged with the pin tips facing downward, and the positioning pins slide through the vehicle plate. Wherein, when the second annular member moves downward, the first annular member can pass downward through the through hole, and when the top surface of the first annular member is not higher than the top surface of the positioning plate, the gravity block can knock the positioning plate downward to allow the positioning pins to penetrate the ground.

[0007] In one possible implementation, the tailings pond sampling device further includes a fixed column and a connecting rod. The fixed column is vertically disposed and fixedly mounted on the vehicle deck. The connecting rod is horizontally disposed, with one end of the connecting rod fixedly connected to the sampling tube and the other end slidably sleeved outside the fixed column.

[0008] In a possible implementation, the tailings pond sampling device further includes two lifting shafts symmetrically arranged on both sides of the gravity block in a radial direction, the lifting shafts being arranged along the radial direction of the gravity block and having one end connected to the gravity block.

[0009] In one possible implementation, the outer wall of the gravity block is provided with an annular groove coaxial with the gravity block, and the tailings pond sampling device further includes a rotating ring, a bracket and a supporting shaft. The rotating ring can be rotatably sleeved in the annular groove, and one end of the lifting shaft is fixed on the rotating ring. The bracket is fixed on the vehicle plate, and the bracket is provided with a threaded hole, and the hole depth direction of the threaded hole is set along the radial direction of the gravity block. The supporting shaft is passed through the threaded hole and is provided with a third external thread threadedly connected to the threaded hole. One end of the supporting shaft faces the gravity block and the end face is provided with a supporting groove. Wherein, when the gravity block is at a preset height, the rotation of the rotating ring can enable one of the lifting shafts to be aligned with the supporting groove. At this time, the movement of the supporting shaft along its axial direction can enable the supporting shaft to be slidably sleeved outside the lifting shaft through the supporting groove.

[0010] In one possible implementation, the penetration hole is provided with a third internal thread, and the first annular member is provided with a fourth external thread. When the second annular member moves downward to disconnect the threaded connection with the second external thread, the first annular member can be threadedly connected to the third internal thread through the fourth external thread. The tailings pond sampling device also includes a square tube, a plug-in rod and a telescopic assembly. The square tube is vertically arranged and fixed on the gravity block. The plug-in rod is used to slide in the square tube and abut against the gravity block. The telescopic assembly is fixed on the plug-in rod, and the telescopic assembly has a retractable piston rod. When the plug-in rod is inserted into the square tube, the piston rod of the telescopic assembly retracts and contracts in the vertical direction.

[0011] In one possible implementation, the positioning plate is provided with a positioning hole, and the tailings pond sampling device further includes a slide rail, a slider, a support rod and a penetration shaft. The slide rail is horizontally arranged and fixed on the vehicle plate, with one end of the slide rail facing the positioning hole. The slider is slidably arranged on the slide rail. The support rod is parallel to the slide rail and fixed on the slider. The penetration shaft is vertically arranged and fixed on the support rod. The sliding of the slider can make the penetration shaft coaxially aligned with the positioning hole or make the support rod avoid the lifting path of the positioning plate. When the positioning plate is sleeved on the outside of the penetration shaft through the positioning hole and abuts against the support rod, the positioning pin is located above the ground.

[0012] In one possible implementation, the tailings pond sampling device further includes a limiting rod. The limiting rod is parallel to the supporting rod, is located above the penetration shaft, is fixedly connected to the supporting rod, and has a distance between the limiting rod and the penetration shaft greater than the thickness of the positioning plate. The limiting rod slides through the bracket, and one end of the limiting rod is located in the lifting path of the positioning plate and has an upwardly protruding anti-slip portion.

[0013] In one possible implementation, the sampling tube is provided in a split manner, including a first portion at the top and a second portion at the bottom. The top of the first portion is provided with a fourth internal thread. The closed shaft has an intermediate section located between the tapered portion and the first external thread. An annular gap is provided between the intermediate section and the sampling tube. The tailings pond sampling device also includes a connecting pipe. The connecting pipe is provided in the sampling tube and sleeved on the outside of the intermediate section. One section of the connecting pipe is located in the first portion and fixedly connected to the first portion. The other section of the connecting pipe is located in the second portion and is provided with a fifth external thread threadedly connected to the fourth internal thread. When the tapered portion slides into the second portion and abuts against the connecting pipe, the second portion has a sampling space located below the tapered portion.

[0014] In the embodiment of the present application, compared to the prior art, the initial state of the tapered portion is below the sampling tube and the gap between the tapered portion and the sampling tube is zero. In this way, the tapered portion seals the lower end of the sampling tube. After the weight block is lifted to a certain height and released, it falls downward and strikes the first ring member. Since the first ring member is connected to the sampling tube, the first ring member drives the sampling tube downward, thereby allowing the tapered portion and the sampling tube to penetrate the ground. When the sampling tube reaches a suitable depth underground, the sealing shaft is rotated so that the sealing shaft moves upward, and the tapered portion slides into the sampling tube, creating a sampling space below the tapered portion within the sampling tube. The weight block then continues to strike the first ring member to perform sampling. After sampling is complete, the sampling tube is removed by moving upward, thereby completing sampling. During the sampling process, the tapered portion prevents the upper tailings from entering the sampling tube 2, thereby enabling sampling deep within the tailings reservoir in a single sampling process. Therefore, it can avoid the cumbersome problem of repeated sampling when sampling deep in the tailings pond. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 A schematic diagram of the axonometric structure of a tailings pond sampling device provided in an embodiment of the present invention;

[0017] Figure 2 for Figure 1 Schematic diagram of the enlarged structure of local A in FIG;

[0018] Figure 3 A schematic diagram of an axonometric cross-sectional structure of a tailings pond sampling device provided in an embodiment of the present invention;

[0019] Figure 4 for Figure 3 Schematic diagram of the enlarged structure of the local B in FIG;

[0020] Figure 5 for Figure 3 Schematic diagram of the enlarged structure of the local C in FIG;

[0021] Figure 6 A schematic diagram of the axonometric structure of a gravity block in a tailings pond sampling device provided by an embodiment of the present invention;

[0022] Figure 7 A schematic diagram of the axonometric structure of a closed shaft in a tailings pond sampling device provided by an embodiment of the present invention;

[0023] Figure 8 This is a schematic diagram of the axonometric structure of the second part of the tailings pond sampling device provided in an embodiment of the present invention.

[0024] In the figure: 1, vehicle body; 11, vehicle plate; 2, sampling tube; 201, protrusion; 202, tapered surface; 21, first part; 22, second part; 3, closed shaft; 31, tapered part; 32, limiter; 33, middle section; 4, first annular member; 5, gravity block; 51, annular groove; 6, second annular member; 7, connecting shaft; 8, positioning plate; 81, through hole; 82, positioning hole; 9, fixed Positioning nail; 10, fixing column; 110, connecting rod; 120, lifting shaft; 130, rotating ring; 140, bracket; 150, supporting shaft; 1501, supporting groove; 160, square tube; 170, plug-in rod; 180, telescopic assembly; 190, slide rail; 20, slider; 210, supporting rod; 220, through-shaft; 230, limiting rod; 2301, anti-slip part; 240, connecting pipe. DETAILED DESCRIPTION

[0025] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0026] Please also refer to Figure 1 、 Figure 3 、 Figure 4 and Figure 7 , the tailings pond sampling device provided by the present invention is now described. The tailings pond sampling device includes a vehicle body 1, a sampling tube 2, a closed shaft 3, a first annular member 4 and a gravity block 5. The vehicle body 1 has a horizontally arranged vehicle plate 11. The sampling tube 2 is vertically arranged and slides through the vehicle plate 11, and a first internal thread is provided in the upper part of the sampling tube 2. The closed shaft 3 is coaxially arranged in the sampling tube 2 and is provided with a first external thread threadedly connected to the first internal thread. The bottom of the closed shaft 3 is a conical portion 31 with a conical structure, and the cone tip of the conical portion 31 faces downward. When the closed shaft 3 is raised or lowered, the conical portion 31 can penetrate the sampling tube 2 upward or exit the sampling tube 2 downward. The first annular member 4 is located above the vehicle plate 11, and the first annular member 4 is coaxially sleeved on the outside of the sampling tube 2 and connected to the sampling tube 2. The gravity block 5 is annular and coaxially sleeved outside the sampling tube 2 . The gravity block 5 is located above the first annular member 4 . The gravity block 5 is used to knock the first annular member 4 downward.

[0027] The tailings pond sampling device provided by the present invention is compared with the prior art. The initial state of the tapered portion 31 is located below the sampling tube 2 and the gap between the tapered portion 31 and the sampling tube 2 is zero. In this way, the tapered portion 31 closes the lower end of the sampling tube 2. After lifting the gravity block 5 to a certain height, the gravity block 5 is released. The gravity block 5 falls downward and hits the first annular member 4. Since the first annular member 4 is connected to the sampling tube 2, the first annular member 4 will drive the sampling tube 2 to move downward, so that the tapered portion 31 and the sampling tube 2 penetrate into the ground. When the sampling tube 2 reaches a suitable depth underground, the closing shaft 3 is rotated so that the closing shaft 3 moves upward, and the tapered portion 31 slides into the sampling tube 2, so that the sampling tube 2 has a sampling space located below the tapered portion 31. Then the gravity block 5 continues to hit the first annular member 4 to perform sampling. When the sampling is completed, the sampling tube 2 is removed by moving upward, thereby completing the sampling. During the sampling process, the conical portion 31 can prevent the upper tailings from entering the sampling tube 2, so that the deep end of the tailings pond can be sampled in one sampling process. Therefore, the problem of repeated sampling, which is more cumbersome, can be avoided when sampling deep into the tailings pond.

[0028] In this embodiment, the outer wall of the top of the closed shaft 3 has an outwardly protruding stopper 32. Stopper 32 is located above the sampling tube 2. When stopper 32 abuts the top surface of the sampling tube 2, the tapered portion 31 is located below the sampling tube 2, and the gap between the tapered portion 31 and the sampling tube 2 is zero. The bottom end of the sampling tube 2 is provided with a tapered surface 202. When the gap between the tapered portion 31 and the sampling tube 2 is zero, the tapered surface 202 mates with the tapered surface of the tapered portion 31. This facilitates the sampling tube 2 to be inserted into the ground along with the tapered portion 31.

[0029] In some embodiments, see Figure 1 、 Figure 3 、 Figure 4 and Figure 5 The first ring part 4 can slide up and down, and the outer side wall of the upper part of the sampling tube 2 has a protrusion 201 protruding outward, and the protrusion 201 is provided with a second external thread. The tailings pond sampling device also includes a second ring part 6 and a connecting shaft 7. The second ring part 6 is located above the first ring part 4, and the second ring part 6 is sleeved outside the second external thread and is provided with a second internal thread threadedly connected to the second external thread. There are two connecting shafts 7, which are vertically arranged and located between the first ring part 4 and the second ring part 6. The upper and lower ends of the connecting shaft 7 are fixedly connected to the first ring part 4 and the second ring part 6 respectively, and the connecting shaft 7 slides through the gravity block 5. The first ring part 4 is indirectly connected to the sampling tube 2 through the second ring part 6 and the connecting shaft 7. Since the second ring part 6 is threadedly connected to the sampling tube 2, rotating the second ring part 6 can adjust the height of the first ring part 4, that is, adjust the depth to which the sampling tube 2 can be inserted into the ground, which can be adjusted as needed.

[0030] In this embodiment, the second annular member 6 can be driven to rotate by two connecting shafts 7 , and the gravity block 5 and the first annular member 4 will rotate along with the second annular member 6 .

[0031] In some embodiments, see Figure 1 、 Figure 3 and Figure 4 , the outer wall of the gravity block 5 protrudes outward to the radially outer side of the first ring member 4, and the tailings pond sampling device also includes a positioning plate 8 and a plurality of positioning nails 9. The positioning plate 8 is arranged horizontally and is located above the vehicle plate 11. The middle part of the positioning plate 8 is provided with a through hole 81 coaxially arranged with the first ring member 4. A plurality of positioning nails 9 are fixed on the bottom surface of the positioning plate 8. The positioning nails 9 are arranged vertically with the nail tips facing downward, and the positioning nails 9 slide through the vehicle plate 11. Among them, when the second ring member 6 moves downward, the first ring member 4 can pass downward through the through hole 81. When the top surface of the first ring member 4 is not higher than the top surface of the positioning plate 8, the gravity block 5 can knock the positioning plate 8 downward to make the positioning nails 9 penetrate the ground. When arriving at the sampling location, first move the first ring member 4 downward. When the top surface of the first ring member 4 is not higher than the top surface of the positioning plate 8, lift the gravity block 5 upward, and then release the gravity block 5, so that the gravity block 5 knocks the positioning plate 8 downward, and then the positioning nail 9 penetrates into the ground. This can limit the movement of the device during the sampling process.

[0032] In some embodiments, see Figure 1 The tailings pond sampling device also includes a fixed column 10 and a connecting rod 110. The fixed column 10 is vertically arranged and fixedly mounted on the vehicle plate 11. The connecting rod 110 is horizontally arranged, with one end of the connecting rod 110 fixedly connected to the sampling tube 2 and the other end slidingly sleeved outside the fixed column 10. When the second annular member 6 is rotated, the fixed column 10 can limit the rotation of the sampling tube 2.

[0033] In some embodiments, see Figure 1 The tailings pond sampling device further includes two lifting shafts 120. The two lifting shafts 120 are symmetrically arranged on both sides of the radial direction of the gravity block 5. The lifting shafts 120 are arranged along the radial direction of the gravity block 5 and one end is connected to the gravity block 5. It is more convenient to lift the gravity block 5 through the two lifting shafts 120.

[0034] In some embodiments, see Figure 1 、 Figure 4 and Figure 6The outer wall of the gravity block 5 is provided with an annular groove 51 coaxial with the gravity block 5. The tailings pond sampling device also includes a rotating ring 130, a bracket 140 and a supporting shaft 150. The rotating ring 130 is rotatably sleeved in the annular groove 51, and one end of the lifting shaft 120 is fixed to the rotating ring 130. The bracket 140 is fixed to the vehicle plate 11. The bracket 140 is provided with a threaded hole, and the hole depth direction of the threaded hole is set along the radial direction of the gravity block 5. The supporting shaft 150 is passed through the threaded hole and is provided with a third external thread threadedly connected to the threaded hole. One end of the supporting shaft 150 faces the gravity block 5 and the end face is provided with a supporting groove 1501. When the weight block 5 is at a preset height, the rotation of the rotating ring 130 can align one of the lifting shafts 120 with the supporting groove 1501. At this time, the movement of the supporting shaft 150 along its axial direction can cause the supporting shaft 150 to slide around the outside of the lifting shaft 120 through the supporting groove 1501. The lifting shaft 120 is connected to the weight block 5 through the rotating ring 130. Before driving the second ring member 6 to rotate, thereby driving the first ring member 4 to move up and down, the weight block 5 is first raised to a preset height, and then the rotating ring 130 is driven to rotate so that one of the lifting shafts 120 is aligned with the supporting groove 1501. Then, the supporting shaft 150 is rotated, so that the supporting shaft 150 moves along its axial direction and slides around the outside of the lifting shaft 120 through the supporting groove 1501. In this way, the supporting shaft 150 can support the weight block 5, thereby preventing the first ring member 4 from supporting the weight block 5 to move up and down, thereby reducing the work required.

[0035] In some embodiments, see Figure 1 and Figure 2, the through hole 81 is provided with a third internal thread, and the first ring member 4 is provided with a fourth external thread. When the second ring member 6 moves downward to disconnect the threaded connection with the second external thread, the first ring member 4 can be threadedly connected to the third internal thread through the fourth external thread. The tailings pond sampling device also includes a square tube 160, an insertion rod 170 and a telescopic assembly 180. The square tube 160 is vertically arranged and fixed on the gravity block 5. The insertion rod 170 is used to slide inside the square tube 160 and abut against the gravity block 5. The telescopic assembly 180 is fixed on the insertion rod 170. The telescopic assembly 180 has a piston rod that can be telescoped. When the insertion rod 170 penetrates into the square tube 160, the piston rod of the telescopic assembly 180 telescopes in the vertical direction. After the sampling is completed, the gravity block 5 is moved upward to a preset height and the supporting shaft 150 is sleeved on the outside of a lifting shaft 120 through the supporting groove 1501. Then, the insertion rod 170 is inserted into the square tube 160 and abuts against the gravity block 5. Then, the piston rod of the telescopic assembly 180 is extended upward, thereby pushing the second ring member 6 upward and pulling the sampling tube 2 out of the ground. Subsequently, the piston rod of the telescopic assembly 180 is retracted downward, thereby moving the second ring member 6 downward and disconnecting the threaded connection with the second external thread. Then, the first ring member 4 is threadedly connected to the third internal thread via the fourth external thread. In this way, when the piston rod of the telescopic assembly 180 is extended upward to push the second ring member 6, the positioning plate 8 can be moved upward, thereby pulling the positioning nail 9 out of the ground.

[0036] In this embodiment, the telescopic assembly 180 can be a jack or a hydraulic cylinder. Before the gravity block 5 strikes the positioning plate 8 downward, the first annular member 4 can also be threadedly connected to the third internal thread via the fourth external thread.

[0037] In some embodiments, see Figure 1 and Figure 2, the positioning plate 8 is provided with a positioning hole 82, and the tailings pond sampling device also includes a slide rail 190, a slider 20, a supporting rod 210 and a penetration shaft 220. The slide rail 190 is horizontally arranged and fixed on the vehicle plate 11, and one end of the slide rail 190 faces the positioning hole 82. The slider 20 is slidably arranged on the slide rail 190. The supporting rod 210 is parallel to the slide rail 190 and is fixed on the slider 20. The penetration shaft 220 is vertically arranged and fixed on the supporting rod 210. Among them, the sliding of the slider 20 can make the penetration shaft 220 coaxially aligned with the positioning hole 82 or make the supporting rod 210 avoid the lifting path of the positioning plate 8. When the positioning plate 8 is sleeved on the outside of the penetration shaft 220 through the positioning hole 82 and abuts against the supporting rod 210, the positioning pin 9 is located above the ground. When sampling is completed, the slider 20 is driven to slide, so that the supporting rod 210 avoids the lifting path of the positioning plate 8, and then the positioning plate 8 rises to above the penetration shaft 220, and then the slider 20 is driven to slide again, so that the penetration shaft 220 is coaxially aligned with the positioning hole 82, and finally the positioning plate 8 is lowered until the positioning plate 8 is sleeved outside the penetration shaft 220 and the supporting rod 210 abuts against it, so that the supporting rod 210 will support the positioning plate 8. At this time, the positioning pin 9 is above the ground, so as not to affect the movement of the vehicle body 1.

[0038] In some embodiments, see Figure 1 and Figure 2 The tailings pond sampling device also includes a limiting rod 230. The limiting rod 230 is parallel to the supporting rod 210. The limiting rod 230 is located above the penetration shaft 220. The limiting rod 230 is fixedly connected to the supporting rod 210. The distance between the limiting rod 230 and the penetration shaft 220 is greater than the thickness of the positioning plate 8. The limiting rod 230 slides through the bracket 140. One end of the limiting rod 230 is located on the lifting path of the positioning plate 8 and has an upwardly protruding anti-slip portion 2301. When the positioning plate 8 moves upward, the limiting rod 230 limits the positioning plate 8 to prevent the positioning pin 9 from sliding upward and disengaging from the vehicle plate 11. When the positioning plate 8 abuts against the limiting rod 230, the positioning plate 8 is sleeved outside the penetration shaft 220 and abuts against the supporting rod 210. The anti-slip portion 2301 can limit the limiting rod 230, preventing the limiting rod 230 from sliding away from the bracket 140 in a direction away from the positioning plate 8, and ensuring that one end of the limiting rod 230 is always located in the lifting path of the positioning plate 8. At the same time, it can also prevent the slider 20 from sliding away from the positioning plate 8 and from the slide rail 190.

[0039] In some embodiments, see Figure 3 、 Figure 4 and Figure 8The sampling tube 2 is arranged in a split body, including a first portion 21 at the top and a second portion 22 at the bottom. The top of the first portion 21 is provided with a fourth internal thread. The closed shaft 3 has an intermediate section 33 located between the tapered portion 31 and the first external thread. There is an annular gap between the intermediate section 33 and the sampling tube 2. The tailings pond sampling device also includes a connecting pipe 240. The connecting pipe 240 is arranged in the sampling tube 2 and is sleeved on the outside of the intermediate section 33. One section of the connecting pipe 240 is located in the first portion 21 and is fixedly connected to the first portion 21. The other section of the connecting pipe 240 is located in the second portion 22 and is provided with a fifth external thread threadedly connected to the fourth internal thread. When the tapered portion 31 slides into the second portion 22 and abuts against the connecting pipe 240, a sampling space is provided in the second portion 22 below the tapered portion 31. The sampling tube 2 takes samples through the sampling space. When the sampling is completed and the sampling tube 2 is pulled out from the ground, the threaded connection between the second portion 22 and the connecting tube 240 is disconnected, and then the sample is taken out from the second portion 22 .

[0040] Furthermore, the slide rail 190, slider 20, support rod 210, through-shaft 220, limit rod 230, bracket 140, and support shaft 150 are combined into a connecting unit. Two connecting units are symmetrically positioned on either side of the gravity block 5. Thus, the two support shafts 150 can respectively fit over and support the two lifting shafts 120. Positioning holes 82 are provided on the positioning plate 8 corresponding to each connecting unit.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. Tailings pond sampling device, characterized in that: include: a vehicle body having a horizontally arranged vehicle deck; A sampling tube is vertically arranged and slides through the vehicle plate, and the upper portion of the sampling tube is provided with a first internal thread; a closing shaft coaxially disposed within the sampling tube and having a first external thread threadably connected to the first internal thread; the bottom of the closing shaft being a tapered portion with a conical structure, the tip of the tapered portion pointing downward, such that when the closing shaft is raised or lowered, the tapered portion can be passed upward into the sampling tube or downward out of the sampling tube; a first annular member, located above the vehicle plate, and coaxially sleeved outside the sampling tube and connected to the sampling tube; as well as a gravity block, which is annular and coaxially sleeved outside the sampling tube, the gravity block being located above the first annular member and being used to knock the first annular member downward; The first annular member is capable of sliding up and down, the outer side wall of the upper portion of the sampling tube has a protruding portion protruding outward, and the protruding portion is provided with a second external thread. The tailings pond sampling device further includes: a second annular member, located above the first annular member, the second annular member being sleeved outside the second external thread and provided with a second internal thread threadably connected to the second external thread; There are two connecting shafts, which are vertically arranged and located between the first annular member and the second annular member. The upper end and the lower end of the connecting shaft are fixedly connected to the first annular member and the second annular member respectively, and the connecting shaft slides through the gravity block.

2. The tailings pond sampling device according to claim 1, characterized in that: The outer side wall of the gravity block protrudes outward to the radial outside of the first annular member, and the tailings pond sampling device further includes: A positioning plate is horizontally arranged and located above the vehicle plate, and a through hole is provided in the middle of the positioning plate and is coaxially arranged with the first annular member; A plurality of positioning pins are fixed on the bottom surface of the positioning plate, the positioning pins are vertically arranged with the pin tips facing downward, and the positioning pins slide through the vehicle plate; Among them, when the second ring member moves downward, the first ring member can pass downward through the penetration hole. When the top surface of the first ring member is not higher than the top surface of the positioning plate, the gravity block can knock the positioning plate downward to make the positioning nail penetrate into the ground.

3. The tailings pond sampling device according to claim 1, characterized in that: Also includes: A fixed column, arranged vertically and fixed on the vehicle plate; The connecting rod is arranged horizontally, one end of the connecting rod is fixedly connected to the sampling tube, and the other end is slidably sleeved outside the fixing column.

4. The tailings pond sampling device according to claim 2, characterized in that: Also includes: Two lifting shafts are symmetrically arranged on both sides of the gravity block in a radial direction. The lifting shafts are arranged along the radial direction of the gravity block and one end of the lifting shafts is connected to the gravity block.

5. The tailings pond sampling device according to claim 4, characterized in that: The outer side wall of the gravity block is provided with an annular groove coaxial with the gravity block, and the tailings pond sampling device further comprises: A rotating ring is rotatably sleeved in the annular groove, and one end of the lifting shaft is fixed on the rotating ring; A bracket is fixed on the vehicle plate, the bracket is provided with a threaded hole, and the hole depth direction of the threaded hole is arranged along the radial direction of the gravity block; A supporting shaft is passed through the threaded hole and provided with a third external thread threadedly connected to the threaded hole, one end of the supporting shaft faces the gravity block and an end surface thereof is provided with a supporting groove; Among them, when the gravity block is at a preset height, the rotation of the rotating ring can make one of the lifting shafts align with the supporting groove. At this time, the movement of the supporting shaft along its axial direction can make the supporting shaft slide through the supporting groove and be mounted outside the lifting shaft.

6. The tailings pond sampling device according to claim 5, characterized in that: The through hole is provided with a third internal thread, and the first annular member is provided with a fourth external thread. When the second annular member moves downward to disconnect the threaded connection with the second external thread, the first annular member can be threadedly connected to the third internal thread through the fourth external thread. The tailings pond sampling device also includes: A square tube is vertically arranged and fixed on the gravity block; An insertion rod, which is slidably disposed in the square tube and abuts against the gravity block; The telescopic assembly is fixed on the plug-in rod and has a telescopic piston rod. When the plug-in rod penetrates into the square tube, the piston rod of the telescopic assembly telescopes in the vertical direction.

7. The tailings pond sampling device according to claim 5, characterized in that: The positioning plate is provided with a positioning hole, and the tailings pond sampling device further comprises: A slide rail is horizontally arranged and fixed on the vehicle plate, with one end of the slide rail facing the positioning hole; A slider, slidably disposed on the slide rail; A supporting rod, parallel to the slide rail and fixed on the slider; A through-shaft is vertically arranged and fixed on the supporting rod; Among them, the sliding of the slider can make the penetration shaft and the positioning hole coaxially aligned or make the supporting rod avoid the lifting path of the positioning plate. When the positioning plate is sleeved on the outside of the penetration shaft through the positioning hole and abuts against the supporting rod, the positioning pin is located above the ground.

8. The tailings pond sampling device according to claim 7, characterized in that: Also includes: The limiting rod is parallel to the supporting rod, the limiting rod is located above the penetration shaft, the limiting rod is fixedly connected to the supporting rod, the distance between the limiting rod and the penetration shaft is greater than the thickness of the positioning plate, the limiting rod slides through the bracket, and one end of the limiting rod is located on the lifting path of the positioning plate and has an upwardly protruding anti-slip portion.

9. The tailings pond sampling device according to claim 1, characterized in that: The sampling tube is provided in a split manner, including a first portion at the top and a second portion at the bottom. The top of the first portion is provided with a fourth internal thread. The closed shaft has an intermediate section located between the tapered portion and the first external thread. An annular gap is provided between the intermediate section and the sampling tube. The tailings pond sampling device further includes: a connecting pipe, passing through the sampling tube and sleeved outside the middle section, wherein one section of the connecting pipe is located in the first portion and fixedly connected to the first portion, and the other section of the connecting pipe is located in the second portion and has a fifth external thread threadedly connected to the fourth internal thread; When the tapered portion slides into the second portion and abuts against the connecting tube, a sampling space is provided in the second portion below the tapered portion.

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