Soil pollutant detection device

Abstract

The utility model discloses a soil pollutant detection device, which comprises a vehicle body and a detection disc arranged in a groove at the bottom of the vehicle body, a second rotating shaft is arranged in the vehicle body, rear driving wheels are arranged at two ends of the second rotating shaft, the soil pollutant detection device is characterized in that a worm is sleeved on the second rotating shaft, a worm gear meshed with the worm is further arranged in the vehicle body, and the worm gear is meshed with the worm. A convex block is arranged on the worm gear; a movable shaft is further arranged in the vehicle body, the movable shaft is sleeved with a connecting rod, the connecting rod is connected with the side wall of the detection disc, strip-shaped openings distributed in the axial direction of the connecting rod are formed in the connecting rod, the protruding blocks are located in the strip-shaped openings, and the turbine is used for driving the connecting rod to swing on the horizontal plane around the movable shaft. The rear driving wheel is used for driving the worm gear and the worm to rotate in the rotating process, so that the connecting rod arranged in the vehicle body is driven to swing in the horizontal direction, the soil detection area of the detection disc is enlarged, and the detection efficiency of soil heavy metal pollutants is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of soil heavy metal detection, in particular to a soil pollutant detection device. Background Art

[0002] Heavy metal pollution in soil has the characteristics of poor mobility, long retention time and inability to be degraded by microorganisms in the soil. It can eventually affect human health, survival and development through media such as water and plants. Therefore, monitoring and prevention of heavy metal pollution in soil is crucial. The existing method of detecting heavy metal pollutants in soil is to use a metal detector to maintain a certain distance from the soil and detect whether there are heavy metal pollutants in the soil through the principle of electromagnetic induction. In order to avoid the arm pain caused by the detector being held by the inspector for a long time, the existing metal detector sets a metal detection plate at the bottom of the trolley, and pushes the trolley to move on the detection soil to detect heavy metal pollutants in the soil. However, since the detection plate is usually fixed at the bottom of the trolley, the detection area of ​​the soil by the detection plate is limited during the movement of the trolley, which makes the detection efficiency of heavy metal pollutants in the soil low. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the deficiencies in the prior art, and the purpose is to provide a soil pollutant detection device, which utilizes the rear drive wheel to drive the worm gear to rotate during the rotation process, thereby driving the connecting rod arranged in the vehicle body to swing in the horizontal direction, thereby expanding the detection area of ​​the detection disk for the soil and improving the detection efficiency of the heavy metal pollutants in the soil.

[0004] The utility model is realized by the following technical solutions:

[0005] A soil contaminant detection device comprises a vehicle body and a detection plate arranged in a groove at the bottom of the vehicle body, wherein a second rotating shaft is arranged in the vehicle body, and rear drive wheels are arranged at both ends of the second rotating shaft, and the second rotating shaft is sleeved with a worm, and a worm wheel meshing with the worm is also arranged in the vehicle body, and a protrusion is arranged on the worm wheel;

[0006] A movable shaft is also provided in the vehicle body, a connecting rod is sleeved on the movable shaft, the connecting rod is connected to the side wall of the detection plate, a strip opening is provided on the connecting rod along the axial direction of the connecting rod, the protrusion is located in the strip opening, and the worm gear is used to drive the connecting rod to swing around the movable shaft on a horizontal plane.

[0007] Furthermore, a connecting block is provided on the side wall of the detection plate, and a guide groove distributed along the vertical direction is provided on the connecting block, and the connecting rod is located in the guide groove;

[0008] Limiting grooves are also provided on both sides of the inner wall of the guide groove, and the limiting grooves are distributed along the direction of the guide groove. Limiting blocks are also provided on both sides of the connecting rod, and the limiting blocks are located in the limiting grooves.

[0009] Furthermore, the vehicle body is also provided with a second telescopic tube, the movable end of the second telescopic tube is provided with a vertical rod, the bottom of the vehicle body is provided with a groove, the bottom of the vertical rod extends into the groove and is connected to the detection plate;

[0010] The front end of the vehicle body is provided with an anti-scratch component, and the anti-scratch component includes a box body, a movable block, a first telescopic tube and a first conduit. The box body is detachably connected to the front end of the vehicle body, and an opening is provided at the bottom of the box body. One end of the first telescopic tube is fixed in the box body, and the other end is connected to the movable block. The bottom height of the movable block is not higher than the bottom height of the detection plate. One end of the first conduit is connected to the first telescopic tube, and the other end is connected to the second telescopic tube. When the first telescopic tube is compressed, the fluid in the first telescopic tube can be transferred to the second telescopic tube through the first conduit, so that the movable end of the second telescopic tube is stretched upward in the vertical direction.

[0011] Furthermore, a placement groove is provided on the top of the vehicle body, the bottom of the second telescopic tube is fixed in the placement groove, and a connecting cavity is provided in the vehicle body, and the connecting cavity is communicated with the second telescopic tube;

[0012] The front end of the vehicle body is provided with a notch, and the inner wall of the notch is provided with a first through hole communicating with the connecting cavity;

[0013] A support block is provided on the side wall of the box body, and the support block is located in the notch. The first conduit penetrates the support block and is inserted into the first through hole.

[0014] Furthermore, a mounting blind hole is provided on the inner wall of the first through hole, and a limiting second elastic member and a limiting ball are provided in the mounting blind hole;

[0015] A step hole communicating with the interior is also provided on the side wall of the first conduit, and the second elastic member is used to push the limiting ball to be inserted into the step hole.

[0016] Furthermore, a vertical hole communicating with the first telescopic tube is provided on the top of the box body, an adjusting rod is provided in the vertical hole, and the adjusting rod is vertically inserted into the first telescopic tube;

[0017] The first conduit is in communication with the vertical hole;

[0018] A channel is provided inside the adjusting rod, and a connecting hole and an air inlet hole communicating with the channel are provided on the side wall of the adjusting rod, the air inlet hole is located below the connecting hole, and the connecting hole is communicated with the first conduit;

[0019] A first elastic member is also provided in the box body, and the first elastic member is sleeved on the adjusting rod.

[0020] Furthermore, the bottom of the movable block is a hemispherical structure.

[0021] Furthermore, the vehicle body is provided with a first mounting hole and a second mounting hole, the first mounting hole is provided with a first rotating shaft, front drive wheels are provided at both ends of the first rotating shaft, the second rotating shaft is located in the second mounting hole, the first rotating shaft horizontally penetrates the vehicle body and is connected to the front drive wheel, the second rotating shaft horizontally penetrates the vehicle body and is connected to the rear drive wheel;

[0022] A handle is also provided on the rear end of the vehicle body.

[0023] Furthermore, the vehicle body is further provided with a mounting groove connected to the inner wall of the first mounting hole, and a third telescopic tube and a rubber sheet are provided in the mounting groove, one end of the third telescopic tube is connected to the inner wall of the mounting groove, and the other end is connected to the rubber sheet, and the third telescopic tube can push the rubber sheet to contact the outer wall of the first rotating shaft after expansion;

[0024] A second through hole is provided on the inner wall of the notch, and the second through hole is connected to the third telescopic tube through a hose;

[0025] A second conduit is also provided on the side wall of the box body. The second conduit is located directly above the first conduit. One end of the second conduit is connected to the vertical hole, and the other end of the second conduit passes through the support block and is inserted into the second through hole.

[0026] Furthermore, an arc plate is provided between the detection plate and the bottom of the vertical rod, the bottom of the vertical rod is connected to the arc plate, a slide groove is provided at the bottom of the arc plate, a slider is provided in the slide groove, and the slider is connected to the top of the detection plate.

[0027] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0028] 1. When the utility model passes through a stone protruding out of the soil, the movable block can be displaced upward according to the height of the stone, so that the movable block compresses the first telescopic tube, and then squeezes the gas inside the first telescopic tube into the second telescopic tube, changing the length of the first telescopic tube in the vertical direction, and finally pulling the detection plate upward under the action of the vertical rod, thereby preventing the detection plate from being scratched by the stone, and improving the safety of the detection plate during the detection process;

[0029] 2. When the vehicle body of the utility model moves forward, the rear drive wheel can drive the worm to rotate. When the worm rotates, it can drive the worm wheel meshing with it to rotate. When the worm wheel rotates, the protrusion set on the worm wheel is used to make the connecting rod drive the detection disk to swing around the movable axis on the horizontal plane, thereby expanding the detection area of ​​the detection disk on the horizontal plane and improving the detection efficiency of heavy metal pollutants in the soil. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The drawings described herein are used to provide a further understanding of the embodiments of the present utility model, constitute a part of this application, and do not constitute a limitation of the embodiments of the present utility model. In the drawings:

[0031] Figure 1 It is a schematic diagram of the structure of the utility model;

[0032] Figure 2 For this utility model Figure 1 Sectional view of the middle car body AA;

[0033] Figure 3 For this utility model Figure 1 Sectional view of the middle car body BB;

[0034] Figure 4 For this utility model Figure 1 A cross-sectional view of the middle body BB in another state;

[0035] Figure 5 This is a schematic diagram of the structure of the anti-scratch component of the utility model;

[0036] Figure 6 It is a schematic diagram of the internal structure of the vehicle body of the utility model;

[0037] Figure 7 For this utility model Figure 6 The schematic diagram of the structure after the enlargement of the middle C part;

[0038] Figure 8 It is a bottom view of the curved plate of the utility model;

[0039] Fig. 9 It is a side view of the support block of the utility model;

[0040] Fig.10 The utility model is a schematic diagram of the front structure of the vehicle body.

[0041] Marks and corresponding parts names in the attached drawings:

[0042] 1. Anti-scratch assembly; 3. Detection plate; 4. Vehicle body; 6. Handle; 7. First guide tube; 8. Second elastic member; 9. Connecting cavity; 10. Vertical rod; 11. Limiting ball; 12. Support block; 13. Third spring; 14. Front drive wheel; 15. Third telescopic tube; 16. Rubber sheet; 17. First rotating shaft; 18. Worm gear; 19. Second rotating shaft; 20. Bump; 21. Worm; 22. Connecting rod; 23. Connecting block; 24. Rear drive wheel; 25. Box; 26. First telescopic tube; 27. First spring; 28. Adjusting rod; 29. ​​First elastic member; 30. Second guide tube; 31. Movable block; 32. Arc plate; 33. Sliding block; 34. Second telescopic tube; 35. Second spring; 36. Sliding groove; 37. Notch; 38. First through hole; 39. Second through hole. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical solutions and advantages of the utility model more clearly understood, the utility model is further described in detail below in conjunction with embodiments and drawings. The schematic implementation manner of the utility model and its description are only used to explain the utility model and are not intended to limit the utility model.

[0044] Example

[0045] like Figures 1 to 10 As shown, the utility model includes a detection plate 3 and a vehicle body 4, wherein the vehicle body 4 is further provided with a second telescopic tube 34, wherein the movable end of the second telescopic tube 34 is provided with a vertical rod 10, and the bottom of the vehicle body is provided with a groove, wherein the bottom of the vertical rod 10 extends into the groove and is connected to the detection plate 3; an anti-scratch component 1 is provided at the front end of the vehicle body 4, wherein the anti-scratch component 1 includes a box body 25, a movable block 31, a first telescopic tube 26 and a first conduit 7, wherein the box body 25 is detachably connected to the front end of the vehicle body 4, and the box body 25 An opening is provided at the bottom, one end of the first telescopic tube 26 is fixed in the box body 25, and the other end is connected to the movable block 31. The bottom height of the movable block 31 is not higher than the bottom height of the detection plate 3. One end of the first conduit 7 is connected to the first telescopic tube 26, and the other end is connected to the second telescopic tube 34. When the first telescopic tube 26 is compressed, the fluid in the first telescopic tube 26 can be transferred to the second telescopic tube 34 through the first conduit 7, so that the movable end of the second telescopic tube 34 is stretched upward in the vertical direction.

[0046] In the prior art, when detecting heavy metal pollutants in soil, the traditional method is to use a handheld metal detection plate to move on the soil to be detected to detect heavy metal pollutants. However, since this method requires the detection personnel to hold the metal detection plate for a long time, which can easily cause arm soreness, the prior art installs the metal detection plate 3 at the bottom of a trolley, and pushes the trolley to move on the detection soil to detect heavy metal pollutants. Compared with the handheld metal detection plate, this structure can avoid the arm soreness caused by the detection personnel holding the detector for a long time. However, when the trolley is moved in some soil areas containing stones, the soil protruding outside the soil can easily cause scratches on the detection plate 3, which will cause damage to the detection plate 3 when moving along.

[0047] Based on the above reasons, the technical solution provides an anti-scratch component 1 at the front of the vehicle body 4. The box 25 of the anti-scratch component 1 is detachably connected to the vehicle body 4, and the user can selectively install the anti-scratch component 1 according to actual usage requirements. A first telescopic tube 26 is arranged in the cavity of the box body 25. The first telescopic tube 26 is a bellows with closed structures at both ends. It can be extended and retracted along its axial direction to change its length. The bottom of the first telescopic tube 26 is connected to the movable block 31. The movable block 31 is protruded from the opening of the box body 25 to the bottom of the box body 25, and the bottom of the movable block 31 is located at a horizontal plane lower than the horizontal plane where the bottom of the detection disk 3 at the bottom of the vehicle body 4 is located; at the same time, a second telescopic tube 34 is also arranged on the vehicle body 4. The second telescopic tube 34 is also a bellows with closed structures at both ends. It is connected to the first telescopic tube 26 through the first conduit 7, and a vertical rod 10 connected to the detection disk 3 is arranged inside the second telescopic tube 34. When the second telescopic tube 34 is stretched upward in the vertical direction, the movable end of the second telescopic tube 34 can pull the vertical rod 10 to move upward, thereby raising the height of the detection disk 3, the initial state , the first telescopic tube 26 is filled with gas, the first telescopic tube 26 is in an expanded and stretched state, and the second telescopic tube 34 is in an unexpanded and stretched state. Therefore, when the front of the vehicle body 4 encounters stones on the soil during the process of moving forward, the stones preferentially collide with the movable block 31 of the anti-scratch component 1. Under the action of the stones, the movable block 31 is pushed to move upward in the opening of the box body 25. The movable block 31 will compress the first telescopic tube 26 during the movement. When the first telescopic tube 26 is compressed, the gas inside it will be squeezed into the first conduit 7. The air inside the first telescopic tube 26 is squeezed into the second telescopic tube 34 through the first conduit 7, forcing the second telescopic tube 34 to stretch and expand upward in the vertical direction. In addition, the stones make the compression amount of the first telescopic tube 26 by the movable block 31 in the vertical direction consistent with the expansion and stretching amount of the second telescopic tube 34 in the vertical direction.

[0048] When the vehicle body 4 in the present technical solution encounters a stone higher than the bottom of the movable block 31 during movement, the part of the stone higher than the movable block 31 will squeeze the movable block 31, so that the movable block 31 moves upward by a distance equal to the distance the stone is higher than the movable block 31, that is, the compressed length of the first telescopic tube 26 is the height of the stone higher than the bottom of the movable block 31 in the initial state, thereby making the expanded and stretched length of the second telescopic tube 34 consistent with the compressed length of the first telescopic tube 26, and finally making the second telescopic tube 34 able to lift the detection plate 3 upward under the action of the vertical rod 10, and the lifted height is the compressed length of the first telescopic tube 26; when the anti-scratch component 1 at the head of the vehicle body 4 completely passes through the raised stone, the stone removes the impact on the movable block 31. After the upward force of the movable block 31, the expanded second telescopic tube 34 will be pulled to gradually restore to the initial state under the action of the deadweight of the detection plate 3. Since the height of the horizontal plane where the bottom of the movable block 31 is located in the initial state is lower than the height of the horizontal plane where the bottom of the detection plate 3 is located, that is, there is a certain height difference between the bottom of the detection plate 3 and the bottom of the movable block 31. At the same time, since the first telescopic tube 26 and the second telescopic tube 34 themselves have a certain buffer function, during the process of the second telescopic tube 34 slowly contracting from the stretched state, since the vehicle body 4 continues to move forward under the push of the detection personnel, the detection plate 3 can be ensured to have a certain amount of time to smoothly pass through the protruding stone during the slow descent of the detection plate 3.

[0049] In order to improve the buffering performance of the first telescopic tube 26 and the second telescopic tube 34 in this embodiment, a first spring 27 is provided in the first telescopic tube 26, and the first spring 27 is distributed axially along the first telescopic tube 26. A second spring 35 is provided in the second telescopic tube 34, and the second spring 35 is distributed axially along the second telescopic tube 34. When the first telescopic tube 26 is in a compressed state, the first spring 27 is also in a compressed state. When the second telescopic tube 34 is in a stretched state, the first spring 27 is in a stretched state.

[0050] A placement groove is provided on the top of the vehicle body 4, and the bottom of the second telescopic tube 34 is fixed in the placement groove. A connecting cavity 9 is provided in the vehicle body 4, and the connecting cavity 9 is communicated with the second telescopic tube 34; a notch 37 is provided at the front end of the vehicle body 4, and a first through hole 38 communicated with the connecting cavity 9 is provided on the inner wall of the notch 37; a support block 12 is provided on the side wall of the box body 25, and the support block 12 is located in the notch 37, and the first conduit 7 passes through the support block 12 and is inserted into the first through hole 38.

[0051] In order to achieve a detachable connection between the box body 25 and the head of the vehicle body 4 in this embodiment, a notch 37 is provided at the head of the vehicle body 4. During installation, the first conduit 7 on the box body 25 is inserted into the first through hole 38 of the notch 37 of the vehicle body 4, and the support block 12 on the side wall of the box body 25 is placed in the notch 37. The notch 37 is used to support the support block 12, thereby achieving a detachable connection between the anti-scratch component 1 and the vehicle body 4.

[0052] A mounting blind hole is also provided on the inner wall of the first through hole 38, and a limiting second elastic member 8 and a limiting ball 11 are provided in the mounting blind hole, and the outer diameter of the limiting ball 11 is consistent with the inner diameter of the mounting blind hole; a step hole connected to the interior is also provided on the side wall of the first conduit 7, and the inner diameter of the step hole increases from the inside to the outside, and the second elastic member 8 is used to push the limiting ball 11 to be inserted into the step hole.

[0053] In order to achieve a stable connection between the box body 25 and the vehicle body 4 in this embodiment, a second elastic member 8 and a limiting ball 11 are provided in the first through hole 38. When the first conduit 7 is inserted into the first through hole 38, the end of the first conduit 7 acts on the limiting ball 11, so that the limiting ball 11 is compressed into the second elastic member 8 and retracts into the installation blind hole, so as to prevent the limiting ball 11 from hindering the movement of the first conduit 7 in the first through hole 38. When the step hole on the first conduit 7 moves to the limiting ball 11, the limiting ball 11 will be inserted into the step hole under the action of the second elastic member 8, thereby fixing the first conduit 7 in the first through hole 38.

[0054] A vertical hole connected to the first telescopic tube 26 is provided on the top of the box body 25, and an adjusting rod 28 is provided in the vertical hole, and the adjusting rod 28 is vertically inserted into the first telescopic tube 26; the first conduit 7 is connected to the vertical hole; a channel is provided inside the adjusting rod 28, and a connecting hole and an air inlet hole connected to the channel are provided on the side wall of the adjusting rod 28, and the air inlet hole is located below the connecting hole, and the connecting hole is connected to the first conduit 7; a first elastic member 29 is also provided in the box body 25, and the first elastic member 29 is sleeved on the adjusting rod 28 and connected to the adjusting rod 28.

[0055] In order to achieve the connection between the first telescopic tube 26 and the first conduit 7 in this embodiment, an adjusting rod 28 is provided on the top of the box body 25. In the initial state, under the action of the first elastic member 29, the connecting hole on the outer wall of the adjusting rod 28 is exactly at the same height as the first conduit 7. At this time, when the first telescopic tube 26 is squeezed, the air inside it enters the air inlet hole on the side wall of the adjusting rod 28, and then the air enters the first conduit 7 through the connecting hole. The air in the first conduit 7 then enters the connecting cavity 9 of the vehicle body 4, and finally the air enters the second telescopic tube 34, forcing the second telescopic tube 34 to stretch in the vertical direction, thereby changing the length of the second telescopic tube 34.

[0056] The elastic force of the first elastic member 29 is large enough to ensure that when the first telescopic tube 26 is compressed to transfer the internal gas to the adjusting rod 28, the gas pressure will not push the adjusting rod 28 to automatically move upward.

[0057] In this embodiment, in order to facilitate the removal of the first conduit 7 from the first through hole 38 and the removal of the anti-scratch component 1 from the vehicle body 4, the adjusting rod 28 is moved in the vertical direction in the box body 25, that is, when the anti-scratch component 1 needs to be removed, the adjusting rod 28 is pushed downward or pulled upward by hand, so that the connecting hole on the adjusting rod 28 is misaligned with the first conduit 7. At this time, the connecting section of the first conduit 7 and the vertical hole is in a blocked state. Therefore, when the user squeezes the second telescopic tube 34 downward, the gas inside the second telescopic tube 34 is squeezed and flows back into the first conduit 7 through the connecting cavity 9. Under the action of the step hole of the first conduit 7, the air pressure entering the first conduit 7 acts on the limiting ball 11 located in the step hole, so that the limiting ball 11 retracts back and compresses the second elastic member 8, and finally removes the constraint of the limiting ball 11 on the first conduit 7, so that the box body 25 can be quickly removed from the notch 37 of the vehicle body 4.

[0058] The bottom of the movable block 31 is a hemispherical structure.

[0059] In this embodiment, in order to ensure that the stones protruding from the soil can effectively squeeze the movable block 31 , the movable block 31 can move upward in the box body 25 , thereby squeezing the first telescopic tube 26 .

[0060] A front drive wheel 14 and a rear drive wheel 24 are respectively provided on both sides of the vehicle body 4. A first mounting hole and a second mounting hole are provided in the vehicle body 4. A first rotating shaft 17 is provided in the first mounting hole, and a second rotating shaft 19 is provided in the second mounting hole. The first rotating shaft 17 horizontally penetrates the vehicle body 4 and is connected to the front drive wheel 14, and the second rotating shaft 19 horizontally penetrates the vehicle body 4 and is connected to the rear drive wheel 24. A handle 6 is also provided on the rear end of the vehicle body 4.

[0061] In this embodiment, in order to ensure that the vehicle body 4 can move on the soil to be detected, a front drive wheel 14 and a rear drive wheel 24 are provided on the vehicle body 4, and the front drive wheel 14 and the rear drive wheel 24 enable the vehicle body 4 to move normally on the soil.

[0062] The vehicle body 4 is further provided with a mounting groove connected to the inner wall of the first mounting hole, and a third telescopic tube 15 and a rubber sheet 16 are provided in the mounting groove. One end of the third telescopic tube 15 is connected to the inner wall of the mounting groove, and the other end is connected to the rubber sheet 16. After the third telescopic tube 15 is expanded, it can push the rubber sheet 16 to contact the outer wall of the first rotating shaft 17; a second through hole 39 is provided on the inner wall of the notch 37, and the second through hole 39 is connected to the third telescopic tube 15 through a hose; a second conduit 30 is further provided on the side wall of the box body 25, and the second conduit 30 is located directly above the first conduit 7, one end of the second conduit 30 is connected to the vertical hole, and the other end passes through the support block 12 and is inserted into the second through hole 39.

[0063] In the present technical solution, when encountering stones that are not high on the soil, the anti-scratch component 1 can dynamically adjust the height of the detection disk 3 by using the set anti-scratch component 1, thereby preventing small stones from scratching the detection disk 3. When encountering larger stones, the height of the stones is higher than the bottom of the vehicle body 4, stones of this size will cause scratches on the bottom of the vehicle body 4. In order to avoid the above situation, in this embodiment, a third telescopic tube 15 and a rubber sheet 16 are further provided in the vehicle body 4. The third telescopic tube 15 is also a corrugated tube with closed structures at both ends. When the third telescopic tube 15 is inflated to expand, the third telescopic tube 15 can push the rubber sheet 16 to move toward the first rotating shaft 17, and finally make the rubber sheet 16 closely fit on the outer wall of the first rotating shaft 17. The friction resistance between the rubber sheet 16 and the first rotating shaft is used to achieve braking of the first rotating shaft 17, thereby preventing the front drive wheel 14 from continuing to move on the soil, thereby preventing large stones from scratching the bottom of the vehicle body 4.

[0064] In order to realize that when a large stone moves to the anti-scratch component 1, the movable block 31 can automatically identify whether the stone will scratch the bottom of the vehicle body 4, so a second conduit 30 is also provided on the box body 25. In the initial state, the second conduit 30 is not connected with the connecting hole on the side wall of the adjusting rod 28. At this time, the second conduit 30 is in a blocked state. When the movable block 31 encounters a stone, the stone pushes the movable block 31 to move upward. When the movable block 31 moves, it first compresses the first telescopic tube 26. When the movable block 31 pushes the bottom end of the first telescopic tube 26 to be compressed to the adjusting rod 28, the first telescopic tube 26 will push the adjusting rod 28 to move upward when squeezed by the movable block 31, so that The connecting hole on the side wall of the adjusting rod 28 is moved upward from the first conduit 7 to the second conduit 30, so that the second conduit 30 is connected to the connecting hole of the adjusting rod 28. Therefore, as the movable block 31 continues to squeeze the first telescopic tube 26, the gas in the first telescopic tube 26 will enter the second conduit 30 through the connecting hole on the adjusting rod 28, and the gas in the second conduit 30 will enter the third telescopic tube 15 through the hose, so that the third telescopic tube 15 expands and stretches, and pushes the rubber sheet 16 to fit the outer wall of the first rotating shaft 17, thereby limiting the rotation of the front drive wheel 14, reminding the user that there is an obstacle in front of the vehicle body 4 that scratches the bottom of the vehicle body 4, and the forward direction of the vehicle body 4 needs to be changed in time.

[0065] A third spring 13 is also provided in the third telescopic tube 15. When the supporting force of the stone on the movable block 31 is removed, the third telescopic tube 15 is pulled back gradually under the action of the third spring, and the gas transferred inside the third telescopic tube 15 flows back along the original path to the first telescopic tube 26, thereby removing the restriction of the rubber sheet 16 on the first rotating shaft 17.

[0066] A worm 21 is sleeved on the second rotating shaft 19, and a worm wheel 18 meshing with the worm 21 is also arranged in the vehicle body 4, and a protrusion 20 is also arranged on the worm wheel 18; a movable shaft is also arranged in the vehicle body 4, and a connecting rod 22 is sleeved on the movable shaft, and the connecting rod 22 is connected to the side wall of the detection plate 3, and the connecting rod 22 can rotate around the movable shaft, and a strip opening distributed along the axial direction of the connecting rod 22 is provided on the connecting rod 22, and the protrusion 20 is located in the strip opening, and when the worm wheel 18 rotates around its own center of circle, the connecting rod 22 can drive the detection plate 3 to swing around the movable shaft on a horizontal plane.

[0067] The detection disc 3 in the prior art is usually fixedly arranged at the bottom of the vehicle body 4, which results in that the detection disc 3 can only detect the soil below the vehicle body 4 during movement, and its detection efficiency is low. In order to expand the detection range of the detection disc 3 at the bottom of the vehicle body 4 to the soil, a cavity is further provided inside the vehicle body 4 in this embodiment, a worm gear 18 is provided in the cavity, a rotating shaft is provided at the center of the worm gear 18, and the worm gear 18 can rotate around the rotating shaft in the cavity of the vehicle body 4, and a connecting rod 22 is further provided in the cavity of the vehicle body 4, and a strip-shaped opening is provided on the connecting rod 22, and a protrusion 20 provided on the worm gear 18 is located at the strip-shaped opening of the connecting rod 22. Therefore, when the operator pushes the vehicle body 4 to move, the second rotating shaft 19 is driven to rotate under the action of the rear drive wheel 24. When the second rotating shaft 19 rotates, it drives the worm 21 meshing with the worm gear 18 to rotate, thereby driving the rotation of the worm gear 18. When the worm gear 18 rotates, the protrusion 20 arranged on the worm gear 18 causes the connecting rod 22 to swing around the movable axis on the horizontal plane under the action of the strip-shaped opening of the connecting rod 22, and finally causes the detection plate 3 connected to the connecting rod 22 to swing left and right in the bottom opening of the vehicle body 4, thereby causing the vehicle body 4 to automatically drive the detection plate 3 to swing left and right during the movement, thereby achieving the purpose of expanding the detection area of ​​the detection plate 3.

[0068] An arc plate 32 is also provided between the detection plate 3 and the bottom of the vertical rod 10. The bottom of the vertical rod 10 is connected to the arc plate 32. A slide groove 36 is provided at the bottom of the arc plate 32. A slider 33 is provided in the slide groove 36. The slider 33 protrudes to the bottom of the arc plate 32 and is connected to the top of the detection plate 3.

[0069] In this embodiment, in order to ensure that the vertical rod 10 can drive the detection disk 3 to move upward when the detection disk 3 swings left and right to different positions, an arc plate 32 is also provided. The slider 33 in the slide groove 36 at the bottom of the arc plate 32 is connected with the detection disk 3, so that when the vertical rod 10 moves upward, the vertical rod 10 pulls the arc plate 32 to move together. When the arc plate 32 moves, the slider 33 pulls the detection disk 3 to move upward together.

[0070] A connecting block 23 is also provided on the side wall of the detection plate 3, and a guide groove distributed along the vertical direction is provided on the connecting block 23, and the connecting rod 22 is located in the guide groove; limit grooves are also provided on both sides of the inner wall of the guide groove, and the limit grooves are distributed along the direction of the guide groove. Limit blocks are also provided on both sides of the connecting rod 22, and the limit blocks are located in the limit grooves.

[0071] Since the detection disk 3 can automatically adjust its height according to the height of the obstacle on the soil, in order to ensure that the detection disks 3 at different heights can also swing left and right on the horizontal plane, a connecting block 23 is provided on the detection disk 3. When the detection disk 3 moves upward under the action of the vertical rod 10, the connecting rod 22 and the connecting block 23 can be relatively displaced under the action of the guide groove of the connecting block 23, and the connecting rod 22 and the connecting block 23 are prevented from falling off under the action of the limit block.

[0072] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above description is only the specific implementation method of the utility model and is not used to limit the protection scope of the utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A soil pollutant detection device, comprising a vehicle body (4) and a detection plate (3) arranged in a groove at the bottom of the vehicle body (4), wherein a second rotating shaft (19) is arranged in the vehicle body (4), and rear drive wheels (24) are arranged at both ends of the second rotating shaft (19), characterized in that: A worm (21) is sleeved on the second rotating shaft (19), a worm wheel (18) meshing with the worm (21) is also arranged in the vehicle body (4), and a protrusion (20) is arranged on the worm wheel (18); A movable shaft is also provided in the vehicle body (4), a connecting rod (22) is sleeved on the movable shaft, the connecting rod (22) is connected to the side wall of the detection plate (3), a strip opening is provided on the connecting rod (22) along the axial direction of the connecting rod (22), the protrusion (20) is located in the strip opening, and the worm gear (18) is used to drive the connecting rod (22) to swing around the movable shaft on a horizontal plane.

2. A soil contaminant detection device according to claim 1, characterized in that: A connecting block (23) is also provided on the side wall of the detection plate (3), and a guide groove distributed along the vertical direction is provided on the connecting block (23), and the connecting rod (22) is located in the guide groove; Limiting grooves are also provided on both sides of the inner wall of the guide groove, and the limiting grooves are distributed along the direction of the guide groove. Limiting blocks are also provided on both sides of the connecting rod (22), and the limiting blocks are located in the limiting grooves.

3. A soil contaminant detection device according to claim 1, characterized in that: The vehicle body (4) is also provided with a second telescopic tube (34), the movable end of the second telescopic tube (34) is provided with a vertical rod (10), the bottom of the vehicle body is provided with a groove, the bottom of the vertical rod (10) extends into the groove and is connected to the detection plate (3); The front end of the vehicle body (4) is provided with an anti-scratch component (1), the anti-scratch component (1) comprises a box (25), a movable block (31), a first telescopic tube (26) and a first conduit (7); the box (25) is detachably connected to the front end of the vehicle body (4); an opening is provided at the bottom of the box (25); one end of the first telescopic tube (26) is fixed in the box (25) and the other end is connected to the movable block (31); the bottom height of the movable block (31) is not higher than the bottom height of the detection plate (3); one end of the first conduit (7) is connected to the first telescopic tube (26) and the other end is connected to the second telescopic tube (34); when the first telescopic tube (26) is compressed, the fluid in the first telescopic tube (26) can be transferred to the second telescopic tube (34) through the first conduit (7), so that the movable end of the second telescopic tube (34) is stretched upward in the vertical direction.

4. A soil contaminant detection device according to claim 3, characterized in that: A placement groove is provided on the top of the vehicle body (4), the bottom of the second telescopic tube (34) is fixed in the placement groove, and a connecting cavity (9) is provided in the vehicle body (4), and the connecting cavity (9) is communicated with the second telescopic tube (34); A notch (37) is provided at the front end of the vehicle body (4), and a first through hole (38) communicating with the connecting cavity (9) is provided on the inner wall of the notch (37); A support block (12) is provided on the side wall of the box body (25), the support block (12) is located in the notch (37), and the first conduit (7) penetrates the support block (12) and is inserted into the first through hole (38).

5. A soil contaminant detection device according to claim 4, characterized in that: A mounting blind hole is also provided on the inner wall of the first through hole (38), and a limiting second elastic member (8) and a limiting ball (11) are provided in the mounting blind hole; A step hole communicating with the interior is also provided on the side wall of the first conduit (7), and the second elastic member (8) is used to push the limiting ball (11) to be inserted into the step hole.

6. A soil contaminant detection device according to claim 4, characterized in that: The top of the box body (25) is provided with a vertical hole connected to the first telescopic tube (26), and an adjusting rod (28) is provided in the vertical hole, and the adjusting rod (28) is vertically inserted into the first telescopic tube (26); The first conduit (7) is in communication with the vertical hole; The adjusting rod (28) has a passage inside, and a connecting hole and an air inlet hole in communication with the passage are provided on a side wall of the adjusting rod (28), the air inlet hole is located below the connecting hole, and the connecting hole is in communication with the first conduit (7); A first elastic member (29) is also provided in the box body (25), and the first elastic member (29) is sleeved on the adjusting rod (28).

7. A soil contaminant detection device according to claim 3, characterized in that: The bottom of the movable block (31) is a hemispherical structure.

8. A soil contaminant detection device according to claim 6, characterized in that: The vehicle body (4) is provided with a first mounting hole and a second mounting hole, the first mounting hole is provided with a first rotating shaft (17), front drive wheels (14) are arranged at both ends of the first rotating shaft (17), the second rotating shaft (19) is located in the second mounting hole, the first rotating shaft (17) horizontally penetrates the vehicle body (4) and is connected to the front drive wheel (14), the second rotating shaft (19) horizontally penetrates the vehicle body (4) and is connected to the rear drive wheel (24); A handle (6) is also provided on the rear end of the vehicle body (4).

9. A soil contaminant detection device according to claim 8, characterized in that: The vehicle body (4) is further provided with a mounting groove connected to the inner wall of the first mounting hole, and a third telescopic tube (15) and a rubber sheet (16) are provided in the mounting groove. One end of the third telescopic tube (15) is connected to the inner wall of the mounting groove, and the other end is connected to the rubber sheet (16). After the third telescopic tube (15) is expanded, it can push the rubber sheet (16) to contact the outer wall of the first rotating shaft (17); A second through hole (39) is provided on the inner wall of the notch (37), and the second through hole (39) is connected to the third telescopic tube (15) through a hose; A second conduit (30) is also provided on the side wall of the box body (25). The second conduit (30) is located directly above the first conduit (7). One end of the second conduit (30) is connected to the vertical hole, and the other end of the second conduit (30) passes through the support block (12) and is inserted into the second through hole (39).

10. A soil contaminant detection device according to claim 3, characterized in that: An arc plate (32) is further provided between the detection plate (3) and the bottom of the vertical rod (10), the bottom of the vertical rod (10) is connected to the arc plate (32), a slide groove (36) is provided at the bottom of the arc plate (32), a slider (33) is provided in the slide groove (36), and the slider (33) is connected to the top of the detection plate (3).

Images