A sampling device and method for soil pollution control

Abstract

The present invention discloses a sampling device and method for soil pollution control, which relates to the technical field of soil sampling, and includes a sampling body, wherein the top of the sampling body is slidably connected with a tooth plate. The present invention removes the stoppers set on both sides of the sampling tube, disassembles the sampling tubes that have lost their fixation in sequence, then puts the soil in the inner wall of the sampling tube into a collection bag, and the sampling tubes are uniformly recovered, and the new sampling tubes are combined, then fixed by the stoppers, and reinstalled into the sampling chamber, so as to facilitate the subsequent sampling of soil at different sampling locations, and further solves the problem that during the use of the traditional sampling device for soil pollution control, due to the need to collect soil sampling in batches at different locations in the same area, part of the previous batch of samples still remain in the device during soil sampling, resulting in cross-infection between the current batch of samples and the previous batch of samples, thereby causing the problem that the soil sample data is not accurate enough.

Description

Technical Field

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

[0002] Agricultural plant protection is the abbreviation of plant protection. Its purpose is to promote the healthy growth and development of plants. In the process of plant protection, soil sampling and soil analysis are required. Soil sampling refers to the process of taking out a representative part of the soil from the field or cultivation unit. This process needs to be carried out in accordance with certain specifications and standards to ensure that the collected soil samples can reflect the actual situation of the research object. In soil sampling, parameters such as sampling depth, density and breadth are usually determined according to the purpose and scope of the research.

[0003] The existing technology has the following problems:

[0004] 1. During the use of existing soil pollution control sampling equipment, since soil sampling needs to be carried out in batches at different locations in the same area, part of the previous batch of samples still remains in the equipment during soil sampling, resulting in cross-infection between the current batch of samples and the previous batch of samples, thus causing the problem of inaccurate soil sample data;

[0005] 2. During the use of the existing soil pollution control sampling equipment, after the sampling equipment collects soil, not only the weight of the equipment itself is increased, but also it is squeezed by the deep soil, which often requires a lot of effort to remove the equipment, resulting in the inconvenience of using the soil sampling equipment;

[0006] 3. During the use of existing sampling equipment for soil pollution control, the sampled soil is easily affected by many external factors when it is taken out, which causes the sampled soil to fall off easily, thereby causing the stratification between the soil to change, resulting in the problem of inaccurate sampling data. Summary of the invention

[0007] The present invention provides a sampling device and method for soil pollution control to solve the problems raised in the above background technology.

[0008] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0009] A sampling device and method for soil pollution control, comprising a sampling body, the top of the sampling body is slidably connected to a tooth plate, the bottom of the tooth plate is fixedly connected to a first motor, the output end of the first motor is fixedly connected to a sampling chamber, the bottom of the sampling chamber is fixedly connected to a hollow drill bit, and the hollow drill bit is connected to the center of the bottom of the sampling chamber, and a closing mechanism is provided between the bottom of the sampling chamber and the top of the hollow drill bit;

[0010] The inner cavity of the sampling chamber is slidably connected with an arc door, and the arc door and the sampling chamber are fixed with screws, and the length of the arc door is greater than the length of the inner cavity, a plurality of sampling tubes are clamped at the center of the inner wall of the sampling chamber, and one side of the outer wall of the sampling tube is in contact with the inner wall of the sampling chamber, and the opening at the bottom of the sampling tube is the same size as the cavity of the hollow drill bit, a filling block is placed between the sampling tube and the arc door, and the inner wall of the filling block is in contact with the outer wall of the sampling tube, and slots are provided at the top and bottom of the front and rear sides of the outer wall of the sampling tube;

[0011] A limiting block is fixedly connected to the center of the inner wall of the sampling body, one side of the outer wall of the limiting block is slidably connected to the outer wall of the sampling chamber, and a push-pull mechanism is arranged on the left and right sides of the outer wall of the limiting block.

[0012] A further improvement of the technical solution of the present invention is that the push-pull mechanism includes a transmission gear plate rotatably connected to the left and right sides of the outer wall of the limit block, a rotating shaft is rotatably connected at the center of one side of the outer wall of the transmission gear plate, a handle is fixedly connected to one side of the outer wall of the rotating shaft, a linkage plate is fixedly connected to the side of the outer wall of the rotating shaft close to the handle, and the angle between the linkage plate and the handle is 90°, one end of the outer wall of the linkage plate is rotatably connected to an engaging block, and one end of the outer wall of the engaging block is clamped in the gap of the transmission gear plate.

[0013] A further improvement of the technical solution of the present invention is that a plurality of support columns are fixedly connected around the outer wall of the transmission gear plate away from the rotating shaft, and one end of the support column is clamped in the gap of the gear plate.

[0014] A further improvement of the technical solution of the present invention is that the closing mechanism includes a pushing toothed disk rotatably connected to the bottom of the sampling chamber, and arc-shaped grooves are provided at the four corners of the top of the pushing toothed disk. A traction rod is slidably connected to the inner wall of the arc-shaped groove, and a closing block is fixedly connected to the bottom of the traction rod, and the bottom of the closing block is slidably connected to the top of the hollow drill bit.

[0015] A further improvement of the technical solution of the present invention is that: one end of the top of the inner cavity of the sampling chamber is fixedly connected to a second motor, the output end of the second motor is fixedly connected to a transmission gear rod, and the outer wall of the transmission gear rod is rotatably connected to the inner wall of the sampling chamber, and one side of the outer wall of the transmission gear rod is meshed with the outer wall of the push gear disk.

[0016] A further improvement of the technical solution of the present invention is that: the left and right sides of the inner wall of the sampling bin are clamped with limiters, one side of the outer wall of the limiter is in contact with the outer wall of the sampling tube, one side of the outer wall of the limiter is rotatably connected with a bevel gear, one side of the outer wall of the bevel gear is meshed with a hollow gear rod, the top and bottom of the inner wall of the hollow gear rod are threadedly connected with a telescopic screw rod, one end of the telescopic screw rod is fixedly connected with a clamping plate, and the top and bottom clamping plates are respectively clamped with the topmost and bottommost sampling tubes.

[0017] A further improvement of the technical solution of the present invention is that a first push rod and a second push rod are respectively slidably connected at the center of the left and right sides of the outer wall of the sampling body, and the structures on the first push rod and the second push rod are the same and in opposite directions; a return spring rod is fixedly connected to one end of the outer wall of the first push rod, a blocking block is fixedly connected to the middle of the outer wall of the return spring rod, a fixed block is fixedly connected to one end of the outer wall of the return spring rod, and one side of the outer wall of the fixed block is clamped with the gap of the transmission gear disk.

[0018] A further improvement of the technical solution of the present invention is that: a blocking block is slidably connected to the lower surface of the reset spring rod, a protrusion on the top of the blocking block is engaged with one side of the outer wall of the blocking block, and one side of the outer wall of the blocking block is fixedly connected to the inner wall of the sampling body.

[0019] A further improvement of the technical solution of the present invention is that arc blocks are fixedly connected to both ends of the top of the sampling tube, and arc grooves are provided at both ends of the bottom of the sampling tube.

[0020] A method for sampling equipment for soil pollution control, the method adopts the above-mentioned sampling equipment for soil pollution control, and the method is as follows:

[0021] S1: After the soil sampling is completed, remove the screws between the inner cavity of the sampling chamber and the arc door, push the arc door into the inner cavity of the sampling chamber, then take out the filling block set in the sampling chamber, take out the sampling tube after sampling together with the stopper, then combine the new sampling tubes, use the stopper to fix both sides of the outer wall of the sampling tube, then put it into the sampling chamber, put the filling block into the sampling chamber, and then use the screws to fix the sampling chamber and the arc door to avoid soil remaining inside the equipment during multiple soil collections, causing cross-infection of the soil;

[0022] S2: The push-pull mechanism moves the linkage plate arranged on one side of the outer wall of the rotating shaft forward or backward, so that the engaging block arranged on one end of the outer wall is engaged with the gear gap on one side of the outer wall of the transmission gear plate. At this time, the handle is pressed or lifted to control the lifting of the sampling chamber arranged at the bottom of the gear plate;

[0023] S3: The closing mechanism starts the second motor and uses the second motor to drive the transmission gear rod, so that the transmission gear rod drives the push gear disc to rotate. An arc groove is set on the top of the push gear disc. When the push gear disc rotates, the arc groove pushes the traction rod set on the inner wall, so that the closing block set at the bottom of the traction rod extends from the top of the hollow drill bit to support the soil sample in the sampling tube.

[0024] Due to the adoption of the above technical solution, the present invention has the following technical advances compared with the prior art:

[0025] 1. The present invention provides a sampling device and method for soil pollution control, which comprises the following steps: inserting a plurality of plastic soft plates into slots arranged between sampling tubes, then removing the stoppers arranged on both sides of the sampling tubes, removing the sampling tubes that have lost their fixation in sequence, then putting the soil in the inner walls of the sampling tubes into a collection bag, and collecting the sampling tubes in a unified manner, combining new sampling tubes, then fixing them with stoppers, and reinstalling them into a sampling bin, so as to facilitate subsequent sampling of soil at different sampling locations, further solving the problem that during the use of conventional sampling equipment for soil pollution control, part of the previous batch of samples still remain in the device during soil sampling, resulting in cross-infection between the current batch of samples and the previous batch of samples, thereby causing the soil sample data to be inaccurate.

[0026] 2. The present invention provides a sampling device and method for soil pollution control. The engaging block is pushed forward and embedded in the gap of the transmission gear disk. The handle is pressed to drive the rotating shaft to drive the linkage plate. The engaging block is used to push the transmission gear disk to rotate clockwise, so that the support column lifts the gear plate upward, thereby pulling the gear plate together with the first motor, the sampling chamber, and the hollow drill bit out of the sampling hole. In the pulling process, since the transmission gear disk 11 and the support column 16 are not continuously engaged, the sampling chamber 4 will generate frequent up and down vibrations during the rising process, thereby cleaning the soil on the surface of the sampling chamber 4. This further solves the problem that in the use of traditional soil pollution control sampling equipment, after the sampling equipment collects soil, not only the weight of the equipment itself is increased, but also it is squeezed by the deep soil, resulting in a lot of effort when taking out the equipment, which makes the soil sampling equipment inconvenient to use.

[0027] 3. The present invention provides a sampling device and method for soil pollution control. Arc grooves are arranged at the four corners of the top of a pushing toothed disc. When the pushing toothed disc rotates, the arc grooves are used to drive the traction rod arranged inside the pushing toothed disc, so that the traction rod drives the closing block arranged at the bottom to move inward, so that one end of the closing block is inserted into the sampled soil, the bottom of the sampled soil is supported, the stratification between the soil is stabilized, and the soil is prevented from becoming loose and falling off. This further solves the problem that in the use of traditional sampling equipment for soil pollution control, the sampled soil is easily affected by many external factors when the sampled soil is taken out, which causes the sampled soil to fall off easily, thereby causing the stratification between the soil to change, resulting in inaccurate sampling data. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of the present invention;

[0029] Figure 2 It is a back schematic diagram of the present invention;

[0030] Figure 3 It is a schematic diagram of the internal structure of the present invention;

[0031] Figure 4 It is a schematic diagram of the internal back structure of the present invention;

[0032] Figure 5 This is a schematic diagram of opening the sampling chamber of the present invention;

[0033] Figure 6 It is a side sectional view of the sampling chamber of the present invention;

[0034] Figure 7 It is a cross-sectional view of the top surface of the sampling bin of the present invention;

[0035] Figure 8 is a cross-sectional view of the top surface of the hollow drill bit of the present invention;

[0036] Fig. 9 It is a front cross-sectional view of the stopper and the sampling tube of the present invention;

[0037] Fig.10 It is a schematic diagram of the sampling tube structure of the present invention;

[0038] Fig.11 For the present invention Figure 3 The enlarged schematic diagram at A in the middle;

[0039] Fig.12 For the present invention Figure 4 Large schematic diagram of room B in the middle.

[0040] In the figure: 1. sampling body; 2. tooth plate; 3. first motor; 4. sampling chamber; 5. hollow drill bit; 6. arc door; 7. sampling tube; 8. filling block; 9. slot; 10. limit block; 11. transmission gear disc; 12. rotating shaft; 13. handle; 14. linkage plate; 15. interlocking block; 16. supporting column; 17. pushing gear disc; 18. arc groove; 19. traction rod; 20. closing block; 21. second motor; 22. transmission gear rod; 23. limiter; 24. bevel gear; 25. hollow gear rod; 26. telescopic screw rod; 27. clamping plate; 28. first push rod; 29. ​​second push rod; 30. reset spring rod; 31. blocking block; 32. fixing block; 33. clamping block; 34. arc block; 35. arc clamping groove. DETAILED DESCRIPTION

[0041] The present invention is further described in detail below in conjunction with embodiments: Example 1

[0042] like Figure 1-12 As shown, the present invention provides a sampling device for soil pollution control, including a sampling body 1, a tooth plate 2 is slidably connected to the top of the sampling body 1, a first motor 3 is fixedly connected to the bottom of the tooth plate 2, a sampling chamber 4 is fixedly connected to the output end of the first motor 3, a hollow drill bit 5 is fixedly connected to the bottom of the sampling chamber 4, and the hollow drill bit 5 is connected to the center of the bottom of the sampling chamber 4, a closing mechanism is arranged between the bottom of the sampling chamber 4 and the top of the hollow drill bit 5, an arc door 6 is slidably connected to the inner cavity of the sampling chamber 4, a slide groove for the arc door 6 to pass through is opened in the sampling chamber 4, and the arc door 6 is fixed to the sampling chamber 4 with screws, and The length of the arc door 6 is greater than the length of the inner cavity. Several sampling tubes 7 are clamped at the center of the inner wall of the sampling chamber 4, and one side of the outer wall of the sampling tube 7 is in contact with the inner wall of the sampling chamber 4, and the opening at the bottom of the sampling tube 7 is the same size as the cavity of the hollow drill bit 5. A filling block 8 is placed between the sampling tube 7 and the arc door 6, and the inner wall of the filling block 8 is in contact with the outer wall of the sampling tube 7. Slots 9 are provided at the top and bottom of the front and rear sides of the outer wall of the sampling tube 7. A limit block 10 is fixedly connected to the center of the inner wall of the sampling body 1, and one side of the limit block 10 is slidably connected to the outer wall of the sampling chamber 4. Push-pull mechanisms are provided on the left and right sides of the outer wall of the limit block 10.

[0043] In this embodiment, the sampling body 1 is pushed to the soil sampling point by using the handle 13, and the screws fixing the inner cavity of the sampling chamber 4 and the arc door 6 are removed, so that the arc door 6 slides into the inner cavity of the sampling chamber 4 along the slide groove. Since the length of the arc door 6 is greater than the length of the inner cavity of the sampling chamber 4, one side of the arc door 6 always extends out of the inner cavity. Then, the filling block 8 placed on the inner wall of the sampling chamber 4 is taken out, and then a plurality of sampling tubes 7 are combined with each other, and the combined plurality of sampling tubes 7 are clamped and fixed by using the limiter 23. Then, the sampling tube 7 and the limiter 23 are placed together in the center of the inner wall of the sampling chamber 4, so that one side of the sampling tube 7 is tightly fitted to the inner wall of the sampling chamber 4, and then the filling block 8 is put back into the sampling chamber 4 so that the outer wall of the filling block 8 is tightly fitted to the outer wall of the other side of the sampling tube 7. The sampling tube 7 is tightly fitted, thereby closing the slots 9 set at the top and bottom of the front and rear sides of the outer wall of the sampling tube 7, and then the arc door 6 is pulled to make the screw holes set at the four corners of the outer wall of the arc door 6 correspond to the screw holes set on the outer wall of the sampling chamber 4, and then it is fixed with fixing screws to make the screw nuts enter the arc door 6, and a limit block 10 is set at the center of the inner wall of the sampling body 1, and then the push-pull mechanism set on the left and right sides of the outer wall of the limit block 10 is used to control the tooth plate 2 set on the top of the sampling body 1 to move up and down. When collecting soil, the push-pull mechanism is used to make the tooth plate 2 drive the first motor 3 set at the bottom and the sampling chamber 4 to move downward until the hollow drill bit 5 set at the bottom of the sampling chamber 4 contacts the soil surface, and the first motor 3 is started to fix the sampling chamber 4 at its output end. The chamber 4 drives the hollow drill bit 5 to drill. During the drilling process, since a hole with the same inner diameter as the sampling tube 7 is provided at the bottom of the sampling chamber 4, and the hole size is the same as the size of the hole drilled by the hollow drill bit 5, when the push-pull mechanism pushes the tooth plate 2 to make the sampling chamber 4 and the hollow drill bit 5 continue to drill downward, the external soil is squeezed out by the oblique section of the outer wall of the hollow drill bit 5, and the soil at the center of the hole drilled by the hollow drill bit 5 enters the sampling tube 7 along the hole set at the bottom of the sampling chamber 4. When the soil collection at the specified depth is completed, the closing mechanism set between the bottom of the sampling chamber 4 and the top of the hollow drill bit 5 is used to support the bottom soil in the sampling tube 7 to prevent the soil from falling off during the removal process, and the push-pull mechanism is used again to push the tooth plate 2 together with the first motor 3 , the sampling chamber 4 and the hollow drill bit 5 are pulled out of the sampling hole, which optimizes the problem that the soil sampling equipment is very laborious during the removal process. When the sampling chamber 4 is taken out from the sampling hole, the arc door 6 and the filling block 8 are repeatedly disassembled. At this time, a number of plastic soft boards are inserted into the slots 9 set between the sampling tubes 7 to divide the soil in the sampling tubes 7, which is convenient for the subsequent removal of the sampling tubes 7 and the removal of the sampled soil. Then, the sampling tubes 7 are taken out from the sampling chamber 4 together with the limiters 23, and the sampling tubes 7 that have lost their fixation are disassembled in sequence by disassembling the limiters 23 set on both sides of the sampling tubes 7, and then the soil in the inner wall of the sampling tubes 7 is put into the collection bag, and the sampling tubes 7 are uniformly recovered, and the new sampling tubes 7 are combined and then fixed with the limiters 23.Reinstalling it into the sampling chamber 4 facilitates the subsequent sampling of soil at different sampling locations, further solving the problem that during the use of traditional soil pollution control sampling equipment, part of the previous batch of samples still remain in the equipment during soil sampling, resulting in cross-infection between the current batch of samples and the previous batch of samples, thus causing the soil sample data to be inaccurate. Example 2

[0044] like Figure 1-12 As shown, on the basis of Example 1, the present invention provides a technical solution: the push-pull mechanism includes a transmission gear plate 11 rotatably connected to the left and right sides of the outer wall of the limit block 10, a rotating shaft 12 is rotatably connected at the center of one side of the outer wall of the transmission gear plate 11, a handle 13 is fixedly connected to one side of the outer wall of the rotating shaft 12, a linkage plate 14 is fixedly connected to the side of the outer wall of the rotating shaft 12 close to the handle 13, and the angle between the linkage plate 14 and the handle 13 is 90°, one end of the outer wall of the linkage plate 14 is rotatably connected to an interlocking block 15, one end of the outer wall of the interlocking block 15 is clamped with the gap of the transmission gear plate 11, and a plurality of support columns 16 are fixedly connected around the outer wall of the transmission gear plate 11 away from the rotating shaft 12, and one end of the support column 16 is clamped with the gap of the tooth plate 2.

[0045] In this embodiment, a transmission toothed disc 11 is arranged on the left and right sides of the outer wall of the limit block 10, so that a plurality of support columns 16 arranged around one side of the outer wall of the transmission toothed disc 11 are interlocked with the gap between the toothed plate 2, a rotating shaft 12 is arranged on the other side of the transmission toothed disc 11 away from the support column 16, a handle 13 is arranged on one side of the outer wall of the rotating shaft 12, and a linkage plate 14 is arranged on the side of the outer wall of the rotating shaft 12 close to the handle 13, and the linkage plate 14 and the handle 13 form a 90° angle, and the interlocking block 15 arranged on one end of the outer wall of the linkage plate 14 is pushed backward to make one side of the outer wall of the interlocking block 15 engage with the gap between the transmission toothed disc 11. When the toothed plate 2 needs to be moved downward, the handle 13 is lifted up to make the rotating shaft 12 drive the linkage plate 14, and the interlocking block 15 is used to push the transmission toothed disc 11 to rotate clockwise, so that the support column 16 presses the toothed plate 2 downward to move. When the soil sampling is completed, the interlocking block 1 5 is moved forward to embed the engaging block 15 into the gap of the transmission toothed disc 11, and by pressing the handle 13, the rotating shaft 12 drives the linkage plate 14, and the engaging block 15 is used to push the transmission toothed disc 11 to rotate counterclockwise, so that the support column 16 lifts the toothed plate 2 and moves upward, so that the toothed plate 2 together with the first motor 3, the sampling chamber 4, and the hollow drill bit 5 are pulled out of the sampling hole, and in the pulling process, because the transmission toothed disc 11 and the support column 16 are not continuously engaged, the sampling chamber 4 will produce frequent up and down vibrations during the rising process, so that the soil on the surface of the sampling chamber 4 is cleaned, which further solves the problem that in the use of the traditional sampling equipment for soil pollution control, after the sampling equipment collects soil, not only the weight of the equipment itself is increased, but also it is squeezed by the deep soil, resulting in that a lot of effort is often required when taking out the equipment, which makes the soil sampling equipment inconvenient to use. Example 3

[0046] like Figure 1-12 As shown, on the basis of Example 1, the present invention provides a technical solution: the closing mechanism includes a pushing toothed disk 17 rotatably connected to the bottom of the sampling chamber 4, and arc-shaped grooves 18 are provided at four corners of the top of the pushing toothed disk 17. The inner wall of the arc-shaped groove 18 is slidably connected with a traction rod 19, and the bottom of the traction rod 19 is fixedly connected with a closing block 20, and the bottom of the closing block 20 is slidably connected to the top of the hollow drill bit 5. One end of the top of the inner cavity of the sampling chamber 4 is fixedly connected with a second motor 21, and the output end of the second motor 21 is fixedly connected with a transmission gear rod 22, and the outer wall of the transmission gear rod 22 is rotatably connected to the inner wall of the sampling chamber 4, and one side of the outer wall of the transmission gear rod 22 is meshed with the outer wall of the pushing toothed disk 17.

[0047] In this embodiment, by arranging a second motor 21 at one end of the top of the inner cavity of the sampling chamber 4, when the soil sampling is completed and the sampling chamber 4 needs to be pulled upward, since the soil in the sampling tube 7 is easily affected by many external factors, the soil is easy to fall off from the hole of the hollow drill bit 5 along the sampling tube 7, the second motor 21 is started to drive the transmission gear rod 22 arranged at the output end, so that the transmission gear rod 22 is used to provide power to the push toothed disc 17, and by arranging arc grooves 18 at the four corners of the top of the push toothed disc 17, when the push toothed disc 17 rotates, the arc groove 18 is used to drive the traction rod 19 arranged inside it, so that the traction rod 19 drives the closing block 20 arranged at the bottom to move inward, so that one end of the closing block 20 is inserted into the sampled soil, the bottom of the sampled soil is supported, the stratification between the soil is stabilized, and the soil is prevented from being loose and falling off, which further solves the problem that the traditional sampling equipment for soil pollution control is easily affected by many external factors when the sampled soil is taken out during use, resulting in the sampled soil being easy to fall off, thereby causing the stratification between the soil to change, resulting in the problem of inaccurate sampling data. Example 4

[0048] like Figure 1-12 As shown, on the basis of Example 1, the present invention provides a technical solution: preferably, the left and right sides of the inner wall of the sampling chamber 4 are clamped with limiters 23, one side of the outer wall of the limiter 23 is in contact with the outer wall of the sampling tube 7, one side of the outer wall of the limiter 23 is rotatably connected with a bevel gear 24, one side of the outer wall of the bevel gear 24 is meshed with a hollow gear rod 25, the top and bottom of the inner wall of the hollow gear rod 25 are threadedly connected with a telescopic screw rod 26, one end of the telescopic screw rod 26 is fixedly connected with a clamping plate 27, and the top and bottom clamping plates 27 are respectively clamped with the topmost and bottommost sampling tubes 7.

[0049] In this embodiment, by setting a limiter 23 on the left and right sides of the inner wall of the sampling chamber 4, one side of the outer wall of the limiter 23 is fitted with the outer wall of the assembled sampling tube 7, and then the bevel gear 24 set on one side of the outer wall of the limiter 23 is rotated, so that the bevel gear 24 drives the hollow gear rod 25 to rotate, so that the telescopic screw rod 26 set at the top and bottom of the inner wall of the hollow gear rod 25 is continuously retracted inward, and a clamping plate 27 is set at one end of the telescopic screw rod 26, so that the telescopic screw rods 26 at the upper and lower ends drive the clamping plate 27 to move, and then the topmost sampling tube 7 and the bottommost sampling tube 7 are fixed, thereby avoiding the problem that the sampling tube 7 is loosened due to the influence of centrifugal force in the sampling chamber 4 during soil sampling, thereby causing damage to the internal part of the equipment. Example 5

[0050] like Figure 1-12As shown, on the basis of Example 1, the present invention provides a technical solution: preferably, a first push rod 28 and a second push rod 29 are slidably connected at the center of the left and right sides of the outer wall of the sampling body 1, respectively, and the structure on the first push rod 28 is the same as the structure on the second push rod 29, but is symmetrically arranged, one end of the outer wall of the first push rod 28 is fixedly connected to a return spring rod 30, the middle part of the outer wall of the return spring rod 30 is fixedly connected to a blocking block 31, one end of the outer wall of the return spring rod 30 is fixedly connected to a fixing block 32, and one side of the outer wall of the fixing block 32 is clamped with the gap of the transmission gear disc 11.

[0051] In this embodiment, a first push rod 28 and a second push rod 29 are respectively arranged at the center of the left and right sides of the outer wall of the sampling body 1, and the structure on the first push rod 28 is the same as the structure on the second push rod 29, but is symmetrically arranged. A reset spring rod 30 is arranged at one end of the outer wall of the first push rod 28, and a fixed block 32 is arranged at one end of the outer wall of the reset spring rod 30. When it is necessary to move the device, when the first push rod 28 and the second push rod 29 are pushed inward at the same time, the fixed blocks 32 at both ends are simultaneously embedded in the gap of the transmission gear disc 11, so that The handle 13 is fixed, and then the device can be moved to the collection position; when the push-pull mechanism is needed, the first push rod 28 and the second push rod 29 are pulled according to the conditions of pressing down and pulling up. When the sampling chamber 4 needs to be pulled up, the first push rod 28 remains stationary, so that the fixed block 32 corresponding to the first push rod 28 is engaged with the gap of the transmission gear disc 11, and the second push rod 29 is pulled outward and rotated clockwise for half a circle, so that the blocking block 31 set in the middle of the outer wall of the reset spring rod 30 is engaged with the protrusion of the card block 33 , to prevent the second push rod 29 from loosening and affecting the rotation of the transmission gear disc 11. When the transmission gear disc 11 moves counterclockwise, when the tooth block outside the transmission gear disc 11 passes the fixed block 32, the reset spring rod 30 is used to tilt the fixed block 32 in the counterclockwise direction without affecting the rotation of the transmission gear disc 11. When it is necessary to press down the sampling chamber 4, the second push rod 29 is rotated half a circle counterclockwise and pushed inward so that the corresponding fixed block 32 is embedded in the gap of the transmission gear disc 11. At this time, the first push rod 28 is pulled outward and rotated half a circle counterclockwise. The block 31 provided in the middle of the outer wall of the reset spring rod 30 is engaged with the protrusion of the card block 33 to prevent the first push rod 28 from loosening. When the transmission gear disc 11 moves clockwise, when the tooth block outside the transmission gear disc 11 passes the fixed block 32, the reset spring rod 30 is used to tilt the fixed block 32 in the clockwise direction without affecting the rotation of the transmission gear disc 11. When the soil sampling is completed, the fixed blocks 32 corresponding to the first push rod 28 and the second push rod 29 are simultaneously pushed into the gap of the transmission gear disc 11, thereby locking the transmission gear disc 11. Example 6

[0052] like Figure 1-12As shown, based on Example 1, the present invention provides a technical solution: preferably, the lower surface of the reset spring rod 30 is slidably connected with a block 33, the protrusion on the top of the block 33 is clamped with one side of the outer wall of the block 31, and one side of the outer wall of the block 33 is fixedly connected to the inner wall of the sampling body 1.

[0053] In this embodiment, a block 33 is provided on the lower surface of the reset spring rod 30, and one side of the outer wall of the block 33 is connected to the sampling body 1. When the sampling personnel operate improperly, resulting in the rotation direction of the transmission gear disc 11 being opposite to the corresponding inclination direction of the fixed block 32, one side of the outer wall of the block 31 and the protrusion on the top of the block 33 are used to support and fix the fixed block 32, thereby preventing the transmission gear disc 11 from rotating, avoiding improper operation, thereby causing damage to parts, causing the handle 13 to lose the function of pushing the equipment, and causing the sampling equipment to be difficult to move. Example 7

[0054] like Figure 1-12 As shown, based on Example 1, the present invention provides a technical solution: preferably, arc blocks 34 are fixedly connected at both ends of the top of the sampling tube 7, and arc grooves 35 are opened at both ends of the bottom of the sampling tube 7.

[0055] In this embodiment, arc blocks 34 are provided at both ends of the top of the sampling tube 7, and arc grooves 35 are provided at both ends of the bottom of the sampling tube 7. When the sampling tubes 7 are combined with each other, the arc blocks 34 are embedded in the arc grooves 35, which facilitates the rapid installation of the sampling tubes 7.

[0056] A method for sampling equipment for soil pollution control, the method adopts the above-mentioned sampling equipment for soil pollution control, and the method is as follows:

[0057] S1: After the soil sampling is completed, the screws set between the inner cavity of the sampling chamber 4 and the arc door 6 are removed, and the arc door 6 is pushed into the inner cavity of the sampling chamber 4, and then the filling block 8 set in the sampling chamber 4 is taken out, and the sampling tube 7 after sampling is taken out together with the stopper 23, and then the new sampling tubes 7 are combined with each other, and the two sides of the outer wall of the sampling tube 7 are fixed by the stopper 23, and then put into the sampling chamber 4, and the filling block 8 is put into the sampling chamber 4, and then the sampling chamber 4 and the arc door 6 are fixed by screws, so as to avoid the problem of soil remaining inside the equipment during multiple soil collections, causing cross infection of the soil;

[0058] S2: The push-pull mechanism moves the engaging block 15 provided at one end of the outer wall of the linkage plate 14 forward or backward, so that the engaging block 15 is engaged with the gear gap on one side of the outer wall of the transmission gear plate 11. At this time, the handle 13 is pressed or lifted to control the sampling chamber 4 provided at the bottom of the gear plate 2 to rise and fall;

[0059] S3: The closing mechanism starts the second motor 21 and uses the second motor 21 to drive the transmission gear rod 22, so that the transmission gear rod 22 drives the pushing toothed disc 17 to rotate. By setting an arc groove 18 on the top of the pushing toothed disc 17, when the pushing toothed disc 17 rotates, the arc groove 18 pushes the traction rod 19 set on the inner wall, so that the closing block 20 set at the bottom of the traction rod 19 extends from the top of the hollow drill bit 5 to support the soil sample in the sampling tube 7.

[0060] The following is a detailed description of the working principle of the sampling equipment and method for soil pollution control.

[0061] like Figure 1-12As shown, when working, the sampling body 1 is pushed to the soil sampling point by using the handle 13, and the screws fixing the inner cavity of the sampling chamber 4 and the arc door 6 are removed, so that the arc door 6 slides into the inner cavity of the sampling chamber 4 along the groove. Since the length of the arc door 6 is greater than the length of the inner cavity of the sampling chamber 4, one side of the arc door 6 always extends out of the inner cavity. By taking out the filling block 8 placed on the inner wall of the sampling chamber 4, arc blocks 34 are set at both ends of the top of the sampling tube 7, and arc grooves 35 are set at both ends of the bottom of the sampling tube 7. When the sampling tubes 7 are combined with each other, the arc blocks 34 are embedded in the arc grooves 35, which is convenient for the rapid installation of the sampling tubes 7, and one side of the outer wall of the limiter 23 is fitted with the outer wall of the combined sampling tube 7, and then the bevel gear set on one side of the outer wall of the limiter 23 is rotated. The wheel 24 causes the bevel gear 24 to drive the hollow gear rod 25 on one side of the outer wall. As the hollow gear rod 25 rotates, the telescopic screw rods 26 set at the top and bottom of the inner wall are continuously retracted inward. By setting a clamping plate 27 at one end of the telescopic screw rod 26, the telescopic screw rods 26 at the upper and lower ends drive the clamping plate 27 to fix the topmost sampling tube 7 and the bottommost sampling tube 7, thereby avoiding the problem that the sampling tube 7 is loosened in the sampling chamber 4 due to the influence of centrifugal force during soil sampling, thereby causing damage to the internal part of the equipment. Subsequently, the sampling tube 7 is placed together with the stopper 23 at the center of the inner wall of the sampling chamber 4, so that one side of the sampling tube 7 is tightly attached to the inner wall of the sampling chamber 4, and then the filling block 8 is put back into the sampling chamber 4 so that the filling block 8 The outer wall is tightly fitted with the outer wall of the other side of the sampling tube 7, so that the slots 9 set at the top and bottom of the front and rear sides of the outer wall of the sampling tube 7 are closed, and then the arc door 6 is pulled to make the screw holes set at the four corners of the outer wall of the arc door 6 correspond to the screw holes set on the outer wall of the sampling chamber 4, and then it is fixed with fixing screws to make the screw nuts enter the arc door 6, by respectively setting a first push rod 28 and a second push rod 29 at the center of the left and right sides of the outer wall of the sampling body 1, and the structure on the first push rod 28 is the same as the structure on the second push rod 29, but symmetrically arranged, by setting a reset spring rod 30 at one end of the outer wall of the first push rod 28, and setting a fixing block 32 at one end of the outer wall of the reset spring rod 30, when the first push rod 28 and the second push rod 29 are pushed inward at the same time, both ends The fixing block 32 is embedded in the gap of the transmission gear disc 11 at the same time, so as to fix the handle 13. By arranging a limit block 10 at the center of the inner wall of the sampling body 1, and arranging the transmission gear disc 11 on the left and right sides of the outer wall of the limit block 10, a plurality of support columns 16 arranged around one side of the outer wall of the transmission gear disc 11 are interlocked with the gap of the tooth plate 2. By arranging a rotating shaft 12 on the other side of the transmission gear disc 11 away from the support column 16, a handle 13 is arranged on one side of the outer wall of the rotating shaft 12, and a linkage plate 14 is arranged on the side of the outer wall of the rotating shaft 12 close to the handle 13, and the linkage plate 14 and the handle 13 form an angle of 90°, and by shifting the interlocking block 15 arranged at one end of the outer wall of the linkage plate 14 backward, one side of the outer wall of the interlocking block 15 is interlocked with the gap of the transmission gear disc 11.When the toothed plate 2 needs to be moved downward, the second push rod 29 remains stationary, so that the fixed block 32 corresponding to the second push rod 29 is engaged with the gap of the transmission gear plate 11, and the first push rod 28 is pulled outward and rotated counterclockwise half a circle, so that the blocking block 31 set in the middle of the outer wall of the return spring rod 30 is engaged with the protrusion of the card block 33, so as to prevent the first push rod 28 from loosening and affecting the rotation of the transmission gear plate 11. When the transmission gear plate 11 moves clockwise, when the tooth block outside the transmission gear plate 11 passes the fixed block 32, the return spring rod 30 is used to tilt the fixed block 32 in the clockwise direction without affecting the rotation of the transmission gear plate 11. By lifting the handle 13, the rotating shaft 12 drives the linkage plate 14, and the engaging block 15 is used to push the transmission gear plate 11 to rotate clockwise, so as to rotate the transmission gear plate 11 clockwise. The support column 16 presses the tooth plate 2 downward until the hollow drill bit 5 set at the bottom of the sampling chamber 4 contacts the soil surface, and the first motor 3 is started to drive the sampling chamber 4 fixed at its output end to drive the hollow drill bit 5 to drill. During the drilling process, since a hole with the same inner diameter as the sampling tube 7 is provided at the bottom of the sampling chamber 4, and the hole size is the same as the drilling size of the hollow drill bit 5, when the push-pull mechanism pushes the tooth plate 2 to make the sampling chamber 4 and the hollow drill bit 5 continue to drill downward, the external soil is squeezed out by the oblique surface of the outer wall of the hollow drill bit 5, and the soil at the center of the hole drilled by the hollow drill bit 5 enters the sampling tube 7 along the hole set at the bottom of the sampling chamber 4. When the soil collection at the specified depth is completed, a second motor 2 is set at one end of the top of the inner cavity of the sampling chamber 4. 1. When soil sampling is completed, the sampling chamber 4 is pulled upward. Since the soil in the sampling tube 7 is easily affected by many external factors, the soil is easy to fall off from the hole of the hollow drill bit 5 along the sampling tube 7. The second motor 21 is started to drive the transmission gear rod 22 set at the output end, so that the transmission gear rod 22 is used to provide power to the push toothed disc 17. By setting arc grooves 18 at the four corners of the top of the push toothed disc 17, when the push toothed disc 17 rotates, the arc groove 18 is used to drive the traction rod 19 set inside it, so that the traction rod 19 drives the closing block 20 set at the bottom to move inward, so that one end of the closing block 20 is inserted into the sampled soil, the bottom of the sampled soil is supported, and the stratification between the soil is stabilized to avoid soil The problem of loose soil and falling off is further solved. In the process of using the traditional sampling equipment for soil pollution control, the sampled soil is easily affected by many external factors when taking out the sampled soil, which causes the sampled soil to fall off easily, thereby causing the stratification between the soil to change and resulting in the problem of inaccurate sampling data. When the soil sampling is completed, the first push rod 28 is rotated clockwise and pushed inward so that its corresponding fixed block 32 is embedded in the gap of the transmission gear disk 11. At this time, the second push rod 29 is pulled out and rotated clockwise half a circle so that the blocking block 31 set in the middle of the outer wall of the reset spring rod 30 is engaged with the protrusion of the card block 33, so as to prevent the second push rod 29 from loosening and affecting the rotation of the transmission gear disk 11. When the transmission gear disk 11 moves counterclockwise,When the tooth block outside the transmission gear disk 11 passes the fixed block 32, the reset spring rod 30 is used to tilt the fixed block 32 in the counterclockwise direction without affecting the rotation of the transmission gear disk 11. By pushing the engaging block 15 forward, the engaging block 15 is embedded in the gap of the transmission gear disk 11, and the handle 13 is pressed to make the rotating shaft 12 drive the linkage plate 14, and the engaging block 15 is used to push the transmission gear disk 11 to rotate counterclockwise, so that the support column 16 lifts the tooth plate 2 and moves it upward, so that the tooth plate 2 together with the first motor 3, the sampling chamber 4, and the hollow drill bit 5 are pulled out of the sampling hole, and in the pulling process, because the transmission gear disk 11 and the support column 16 are not continuously engaged, the sampling chamber 4 will produce frequent up and down vibrations during the rising process, so that the soil on the surface of the sampling chamber 4 is cleaned, and the lower surface of the reset spring rod 30 is provided with A card block 33 is arranged, and one side of the outer wall of the card block 33 is connected to the sampling body 1. When the sampling personnel operate improperly, resulting in the transmission gear disc 11 rotating in the opposite direction to the corresponding tilt direction of the fixed block 32, the fixed block 32 is fixed by supporting the one side of the outer wall of the block 31 and the bulge on the top of the card block 33, thereby preventing the rotation of the transmission gear disc 11, avoiding improper operation, thereby causing damage to parts, causing the handle 13 to lose the function of pushing the device, and making the sampling device difficult to move. This further solves the problem that during the use of traditional soil pollution control sampling equipment, after the sampling equipment collects soil, not only the weight of the equipment itself is increased, but also it is squeezed by the deep soil, resulting in the need to spend a lot of effort when taking out the equipment, which leads to the inconvenience of using the soil sampling equipment.

[0062] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A sampling device for soil pollution control, comprising a sampling body (1), characterized in that: The top of the sampling body (1) is slidably connected to the tooth plate (2), the bottom of the tooth plate (2) is fixedly connected to a first motor (3), the output end of the first motor (3) is fixedly connected to a sampling chamber (4), the bottom of the sampling chamber (4) is fixedly connected to a hollow drill bit (5), and the hollow drill bit (5) is connected to the center of the bottom of the sampling chamber (4), and a closing mechanism is provided between the bottom of the sampling chamber (4) and the top of the hollow drill bit (5); The inner cavity of the sampling chamber (4) is slidably connected to an arc-shaped door (6), and the arc-shaped door (6) and the sampling chamber (4) are fixed by screws, and the length of the arc-shaped door (6) is greater than the length of the inner cavity. A plurality of sampling tubes (7) are clamped at the center of the inner wall of the sampling chamber (4), and one side of the outer wall of the sampling tube (7) is in contact with the inner wall of the sampling chamber (4), and the opening at the bottom of the sampling tube (7) is the same size as the cavity of the hollow drill bit (5). A filling block (8) is placed between the sampling tube (7) and the arc-shaped door (6), and the inner wall of the filling block (8) is in contact with the outer wall of the sampling tube (7). Slots (9) are provided at the top and bottom of the front and rear sides of the outer wall of the sampling tube (7); A limit block (10) is fixedly connected at the center of the inner wall of the sampling body (1), one side of the outer wall of the limit block (10) is slidably connected to the outer wall of the sampling chamber (4), and push-pull mechanisms are provided on the left and right sides of the outer wall of the limit block (10); The push-pull mechanism comprises a transmission gear disc (11) rotatably connected to the left and right sides of the outer wall of the limit block (10); a rotating shaft (12) is rotatably connected to the center of one side of the outer wall of the transmission gear disc (11); a handle (13) is fixedly connected to one side of the outer wall of the rotating shaft (12); a linkage plate (14) is fixedly connected to the side of the outer wall of the rotating shaft (12) close to the handle (13); and the angle between the linkage plate (14) and the handle (13) is 90°; one end of the outer wall of the linkage plate (14) is rotatably connected to a fitting block (15); and one end of the outer wall of the fitting block (15) is clamped in the gap of the transmission gear disc (11); A plurality of support columns (16) are fixedly connected around the outer wall of the transmission gear plate (11) away from the rotating shaft (12), and one end of the support column (16) is clamped in the gap of the gear plate (2); The engaging block (15) is pushed forward to be embedded in the gap of the transmission gear disc (11), and the handle (13) is pressed to make the rotating shaft (12) drive the linkage plate (14), and the engaging block (15) is used to push the transmission gear disc (11) to rotate clockwise, so that the support column (16) lifts the toothed plate (2) to move upward, thereby pulling the toothed plate (2) together with the first motor (3), the sampling chamber (4), and the hollow drill bit (5) out of the sampling hole. In addition, during the pulling process, since the transmission gear disc (11) and the support column (16) are not continuously engaged, the sampling chamber (4) will frequently vibrate up and down during the rising process, thereby cleaning the soil on the surface of the sampling chamber (4).

2. A soil pollution control sampling device according to claim 1, characterized in that: The closing mechanism comprises a push toothed disc (17) rotatably connected to the bottom of the sampling chamber (4), arc-shaped grooves (18) are provided at four corners of the top of the push toothed disc (17), a traction rod (19) is slidably connected to the inner wall of the arc-shaped groove (18), a closing block (20) is fixedly connected to the bottom of the traction rod (19), and the bottom of the closing block (20) is slidably connected to the top of the hollow drill bit (5).

3. A soil pollution control sampling device according to claim 2, characterized in that: A second motor (21) is fixedly connected to one end of the top of the inner cavity of the sampling chamber (4), a transmission gear rod (22) is fixedly connected to the output end of the second motor (21), and the outer wall of the transmission gear rod (22) is rotatably connected to the inner wall of the sampling chamber (4), and one side of the outer wall of the transmission gear rod (22) is meshed with the outer wall of the push gear disc (17).

4. The soil pollution control sampling device according to claim 3 is characterized in that: The left and right sides of the inner wall of the sampling chamber (4) are clamped with limiters (23), one side of the outer wall of the limiter (23) is in contact with the outer wall of the sampling tube (7), one side of the outer wall of the limiter (23) is rotatably connected to a bevel gear (24), one side of the outer wall of the bevel gear (24) is meshed with a hollow gear rod (25), the top and bottom of the inner wall of the hollow gear rod (25) are threadedly connected with a telescopic screw rod (26), one end of the telescopic screw rod (26) is fixedly connected with a clamping plate (27), and the top and bottom clamping plates (27) are respectively clamped to the topmost and bottommost sampling tubes (7).

5. A soil pollution control sampling device according to claim 4, characterized in that: A first push rod (28) and a second push rod (29) are slidably connected at the center of the left and right sides of the outer wall of the sampling body (1), respectively, and the structures on the first push rod (28) and the second push rod (29) are the same but in opposite directions. A return spring rod (30) is fixedly connected to one end of the outer wall of the first push rod (28), a blocking block (31) is fixedly connected to the middle of the outer wall of the return spring rod (30), and a fixed block (32) is fixedly connected to one end of the outer wall of the return spring rod (30). One side of the outer wall of the fixed block (32) is clamped with the gap of the transmission gear disc (11).

6. The soil pollution control sampling device according to claim 5, characterized in that: A clamping block (33) is slidably connected to the lower surface of the return spring rod (30), a protrusion on the top of the clamping block (33) is clamped to one side of the outer wall of the blocking block (31), and one side of the outer wall of the clamping block (33) is fixedly connected to the inner wall of the sampling body (1).

7. A soil pollution control sampling device according to claim 6, characterized in that: Arc-shaped blocks (34) are fixedly connected at both ends of the top of the sampling tube (7), and arc-shaped slots (35) are provided at both ends of the bottom of the sampling tube (7).

8. A method for sampling equipment for soil pollution control, the method adopts the sampling equipment for soil pollution control according to claim 7, characterized in that: The method looks like this: S1: After the soil sampling is completed, the screws provided between the inner cavity of the sampling chamber (4) and the arc door (6) are removed, and the arc door (6) is pushed into the inner cavity of the sampling chamber (4), and then the filling block (8) provided in the sampling chamber (4) is taken out, and the sampling tube (7) after sampling together with the stopper (23) is taken out, and then the new sampling tubes (7) are combined with each other, and the two sides of the outer wall of the sampling tube (7) are fixed by the stopper (23), and then the new sampling tubes (7) are placed in the sampling chamber (4), and the filling block (8) is placed in the sampling chamber (4), and then the sampling chamber (4) and the arc door (6) are fixed by screws, so as to avoid the problem of soil remaining in the equipment during the process of collecting soil multiple times, which may cause cross infection of the soil; S2: The push-pull mechanism moves the engaging block (15) provided at one end of the outer wall of the linkage plate (14) forward or backward, so that the engaging block (15) engages with the gear gap on one side of the outer wall of the transmission gear plate (11). At this time, the handle (13) is pressed or lifted, thereby controlling the lifting of the sampling chamber (4) provided at the bottom of the gear plate (2); S3: The closing mechanism starts the second motor (21), and uses the second motor (21) to drive the transmission gear rod (22), so that the transmission gear rod (22) drives the push toothed disc (17) to rotate. By providing an arc groove (18) at the top of the push toothed disc (17), when the push toothed disc (17) rotates, the arc groove (18) pushes the traction rod (19) provided on the inner wall, so that the closing block (20) provided at the bottom of the traction rod (19) extends from the top of the hollow drill bit (5) to support the soil sample in the sampling tube (7).

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