Muck Sampling Device for Muck Trucks

Abstract

The present invention relates to a muck sampling device for a muck truck, which comprises a housing, a lifting seat plate, a lifting drive assembly, a sampling plate, a sampling plate opening and closing control assembly and a soil pushing mechanism. The lifting seat plate, the lifting drive assembly, the sampling plate, the sampling plate opening and closing control assembly and the soil pushing mechanism are all arranged in the housing; there are two sampling plates, which are arranged oppositely, and grooves for accommodating muck are respectively arranged on the inner sides of the two sampling plates. The lifting drive assembly is fixed on the inner wall of the housing, and the lifting seat plate is fixedly connected to the lifting movable end of the lifting drive assembly. The sampling plate opening and closing control assembly and the soil pushing mechanism are both arranged on the lifting seat plate; the sampling plate opening and closing control assembly comprises an opening and closing drive assembly and a connecting rod mechanism, and the opening and closing drive assembly drives the opening and closing movement of the sampling plate through the connecting rod mechanism; the soil pushing mechanism comprises a soil pushing drive assembly and a soil pushing assembly; the lifting drive assembly, the opening and closing drive assembly and the soil pushing drive assembly are all electric linear drive devices.

Description

Technical Field

[0001] The present invention relates to the field of soil pollutant detection, and particularly to a soil sampling device for a muck truck. Background Art

[0002] A muck truck is a vehicle for transporting muck. Muck is loaded in the rear compartment of the muck truck. When the muck in the muck truck is poured into a muck landfill, it is usually necessary to first sample and detect the muck carried on the muck truck.

[0003] During traditional muck sampling and detection, testers collect and prepare a small amount of soil samples from the muck truck at the detection site for detection. When detecting, it is necessary to hold the detection instrument by hand. Because there is a large amount of muck carried by the muck truck, therefore, when detecting, the randomness of the sampled muck is poor, and sampling can only be carried out near the surface of the muck. The sampled muck has poor representativeness, and the true heavy metal content and VOCs gas content of the muck on the entire muck truck cannot be obtained by detecting this part of the muck. Secondly, the detection process requires manual detection by operators, with low efficiency, and the detection data cannot be quickly stored and managed. During the detection process, the detection instrument is easily in contact with the muck, affecting the accuracy of the detection, and improper use of the detection instrument will affect its service life and the accuracy of the detection.

[0004] The first-generation soil sampling device for dump trucks applied by our company (publication number: CN111964956A) discloses the sampling mechanism of the soil detection device, which includes a connecting seat, a driving device and a sampling plate. There are two sampling plates, and the two sampling plates are movably connected to the connecting seat. Accommodating grooves are provided on the inner sides of the two sampling plates, and the accommodating grooves of the two sampling plates are arranged oppositely. Opposite inclined planes are provided on the upper parts of the two sampling plates, and the distance between the two inclined planes gradually increases from top to bottom. The position of the inclined plane is above the connecting part of the sampling plate and the connecting seat. Opposite stoppers are provided in the accommodating grooves of the two sampling plates, and the position of the stopper is below the connecting part of the sampling plate and the connecting seat. The distance between the two stoppers gradually decreases from top to bottom. The driving device is arranged on the connecting seat, and a top block is provided at the movable end of the driving device. The top block is arranged inside the accommodating grooves of the two sampling plates and is located between the inclined plane and the stopper. The driving device can drive the top block to move up and down. When the top block moves downward, it abuts between the two stoppers, causing the lower parts of the two sampling plates to open at a certain angle, so as to facilitate sampling of the soil to be detected. When the top block moves upward, it abuts between the two inclined planes, causing the lower parts of the two sampling plates to close and clamp the sampled soil. The disadvantages of this solution are as follows: This device can only be used by being installed on a gantry. An X-axis driving device, a Y-axis driving device and a detection device moving seat are installed on the gantry. The VOCs gas detection component and the heavy metal detection component are arranged on the detection device moving seat, and the sampling mechanism is arranged on the detection device moving seat. The sampling mechanism can move downward and insert into the soil on the dump truck, and clamp a part of the soil, then rise to the height of the VOCs gas detection component and the heavy metal detection component. The VOCs gas detection component and the heavy metal detection component move to the side of the sampling mechanism to detect the sampled soil. Therefore, it can only sample and detect the soil at one part of the dump truck. When the sampling device samples, if the resistance is too large, the sampling needs to be stopped, and the sampling device returns to its original position, unable to complete the sampling and detection. Moreover, this sampling mechanism cannot adapt to the soil sampling of dump trucks with different sizes and different soil loading heights. 2) The movement of the sampling mechanism needs to be driven by a hydraulic and pneumatic system, and corresponding pneumatic and hydraulic pipelines need to be configured. The structure is complex, and a special electric control cabinet needs to be set up. The electric control cabinet is placed outdoors without anti-wind and rain measures such as a rain shed. The mechanical equipment is relatively easy to be damaged and needs to be maintained regularly. The maintenance cost is relatively high. 3) When the sampling plate samples the soil, it is difficult to control the opening angle between the two sampling plates, and the opening angle of the sampling plate is prone to change; after the sampling plate samples, it is difficult to scrape off the soil exposed from the gap between the two sampling plates, which is easy to cause pollution and damage to the detection device and affect the accuracy of the detection. After the soil detection is completed, the soil can only be pushed back into the dump truck, and the soil pushing mechanism has a poor soil pushing effect, and it is easy to leave part of the soil in the sampling plate, which may affect the accuracy of subsequent soil detection. Therefore, it is necessary to improve the existing soil sampling device. Summary of the Invention

[0005] The object of the present invention is to provide a muck sampling device for a muck truck in view of the problems existing in the existing muck sampling devices described in the background art, such as being unable to adapt to different models of muck trucks, requiring pneumatic and hydraulic systems, having high maintenance costs, being difficult to control the opening angle of the sampling plate during sampling, and being difficult for the earth-moving mechanism to completely push out the muck.

[0006] To achieve the above object, the present invention is realized through the following technical solutions:

[0007] A muck sampling device for a muck truck, which includes a housing, a lifting seat plate, a lifting drive assembly, a sampling plate, a sampling plate opening and closing control assembly, and an earth-moving mechanism. The lifting seat plate, the lifting drive assembly, the sampling plate, the sampling plate opening and closing control assembly, and the earth-moving mechanism are all arranged inside the housing;

[0008] There are two sampling plates, which are arranged opposite to each other. Grooves for accommodating muck are respectively arranged on the inner sides of the two sampling plates, and a supporting part for retaining the clamped muck in the grooves is arranged below the grooves of the two sampling plates.

[0009] The lifting drive assembly is fixed on the inner wall of the housing, the lifting seat plate is fixedly connected to the lifting moving end of the lifting drive assembly, and the sampling plate opening and closing control assembly and the earth-moving mechanism are both arranged on the lifting seat plate;

[0010] The sampling plate opening and closing control assembly includes an opening and closing drive assembly and a connecting rod mechanism. The connecting rod mechanism includes a pushing block, connecting rods, a rotating arm, and an angle iron connecting piece. The inner ends of the two connecting rods are respectively movably connected to the left and right ends of the pushing block, the outer ends of the two connecting rods are respectively correspondingly connected to the upper free ends of the rotating arm, the lower free end of the rotating arm is fixedly connected to the upper end part of the corresponding sampling plate through the angle iron connecting piece. The rotating arm includes a vertical plate and a horizontal plate. The upper end of the vertical plate is the upper free end of the rotating arm, the lower end of the vertical plate is fixedly connected to the outer end part of the horizontal plate, the upper horizontal part of the angle iron connecting piece is fixedly connected to the lower surface of the horizontal plate, the upper end of the sampling plate is fixedly connected to the middle and lower vertical positions of the angle iron connecting piece, and the middle part of the rotating arm is movably connected to the lifting seat plate through a rotating shaft;

[0011] The opening and closing drive assembly is used to drive the pushing block to move up and down, and drive the opening and closing movement of the sampling plate through the connecting rod mechanism;

[0012] The earth-moving mechanism includes an earth-moving drive assembly and an earth-moving assembly. The earth-moving assembly includes a mounting seat and an elastic earth-moving plate. The mounting seat is fixedly connected to the lifting moving end of the earth-moving drive assembly. There are two elastic earth-moving plates, which are respectively movably connected to both sides of the mounting seat, and the two elastic earth-moving plates respectively extend into the grooves of the sampling plate;

[0013] The lifting drive assembly, the opening and closing drive assembly, and the earth-pushing drive assembly are all electric linear drive devices.

[0014] As a further improvement of the above solution, a position sensor is provided on the housing, and the position sensor is used to detect the height of the muck truck and the muck on the muck truck.

[0015] As a further improvement of the above solution, a soil scraping seat is further provided in the housing. The soil scraping seat is arranged below the sampling plate. An opening is provided in the middle of the soil scraping seat. The sampling plate passes through the opening. A scraping plate is provided in the opening, and the position of the scraping plate is opposite to the gap between the two sampling plates. Through this setting, after the sampling plate samples the muck, the scraping plate can scrape the muck exposed from the gap between the sampling plates, preventing the muck exposed from the sampling plate from polluting or damaging the detection instrument of the detection component and extending the service life of the detection component.

[0016] As a further improvement of the above solution, the mounting seat of the earth-pushing assembly includes a first horizontal connecting plate, a vertical connecting plate, a second horizontal connecting plate and a connecting seat. The first horizontal connecting plate is fixedly connected to the lifting movable end of the earth-pushing drive assembly. An opening groove is provided in the middle of the first horizontal connecting plate. The width of the opening groove is greater than the width of the sampling plate. The two sampling plates pass through the opening groove. The two vertical connecting plates are connected below the first horizontal connecting plate. The two vertical connecting plates are respectively located on the front and rear sides of the gap between the two sampling plates, and the width of the vertical connecting plate is less than the width of the gap between the two sampling plates. The second horizontal connecting plate is fixedly connected to the lower parts of the two vertical connecting plates. The second horizontal connecting plate passes through the gap between the two sampling plates. The connecting seat is fixedly connected to the lower surface of the second horizontal connecting plate. The two elastic earth-pushing plates are respectively movably connected to the left and right sides of the connecting seat. The lower ends of the two elastic earth-pushing plates respectively abut against the inner walls of the grooves of the corresponding sampling plates.

[0017] As a further improvement of the above solution, the connecting seat includes a bottom plate and two connecting columns arranged on the upper surface of the bottom plate. The connecting columns are fixedly connected to the second horizontal connecting plate. An empty groove is formed between the two connecting columns. Assembly grooves are respectively provided on the left and right sides of the bottom plate. Assembly holes are provided on both sides of the assembly groove. Through holes corresponding to the middle parts of the elastic earth-pushing plates are provided. The elastic earth-pushing plates are movably connected to the assembly grooves through connecting shafts. The upper parts of the two elastic earth-pushing plates extend to a height corresponding to the empty groove. Spring connecting columns are provided on the inner side surfaces of the elastic earth-pushing plates. Two spring fixing columns corresponding to the spring connecting columns are provided on the lower surface of the second horizontal connecting plate. The spring connecting columns on the two elastic earth-pushing plates are correspondingly connected to the spring fixing columns on the lower surface of the second horizontal connecting plate through springs.

[0018] As a further improvement of the above solution, a reinforcing angle iron is provided between the first horizontal connecting plate and the lifting movable plate of the bulldozing drive assembly.

[0019] As a further improvement of the above solution, the elastic bulldozing plate includes a connecting portion and an elastic bulldozing portion. The connecting portion is movably connected to the connecting seat. The elastic bulldozing portion is obliquely connected to the lower portion of the connecting portion at an angle α, and the elastic bulldozing portion is obliquely arranged towards the groove in the sampling plate.

[0020] As a further improvement of the above solution, a power signal connecting seat and a cable drag chain are further provided on the inner wall of the housing. The power supply lines of the opening and closing drive assembly and the bulldozing drive assembly extend to the power signal connecting seat through the cable drag chain.

[0021] As a further improvement of the above solution, dust covers are provided outside the lifting drive assembly, the opening and closing drive assembly and the bulldozing drive assembly. The dust covers are elastic and telescopic dust covers.

[0022] As a further improvement of the above solution, a limiting assembly is provided on the lifting seat plate. The limiting assembly is arranged below the pushing block of the sampling plate opening and closing control assembly. The limiting assembly includes a fixed seat plate and an adjustable ejector rod connected to the fixed seat plate. The adjustable ejector rod faces the lower surface of the pushing block.

[0023] The beneficial effects of the muck sampling device of the present invention are as follows: 1) For the muck sampling device of the present invention, the lifting drive assembly, the opening and closing drive assembly, and the earth-pushing drive assembly all adopt electric linear drive devices, eliminating the need to design pneumatic or hydraulic pipelines and control systems. This can greatly simplify the overall structure and reduce the equipment maintenance cost; 2) The muck sampling device of the present invention can be installed on a robotic arm and can sample the muck at multiple random sites on a muck truck. The randomness of sampling can better ensure that the sampled muck can represent the true situation of the muck in the muck truck. Compared with the first-generation muck sampling device, the sampling flexibility is higher. In the prior art, since sampling can only be carried out at one site, if sampling fails, the sampling will fail. For the muck sampling device of the present invention, when sampling cannot be carried out at one site, the robotic arm can move the muck sampling device to another site for sampling, which can greatly improve the sampling success rate; 3) For the muck sampling device of the present invention, the sampling plate opening and closing control assembly uses a link mechanism to control the opening and closing movement of the sampling plates. When the opening and closing drive assembly drives the pushing block to move downward, it will drive the link to rotate downward accordingly, driving the upper free end of the rotating arm to rotate outward and the lower end of the rotating arm to rotate inward, driving the two sampling plates to rotate towards each other and clamp the muck between the two sampling plates. When the opening and closing drive assembly drives the pushing block to move upward, it will drive the link to rotate upward accordingly, driving the upper free end of the rotating arm to rotate inward and the lower end of the rotating arm to rotate outward, causing the two sampling plates to open at a certain angle. Since the upper ends of the two sampling plates are connected to the link, the pushing block, and the opening and closing drive assembly through the rotating arm, when the pushing block is stationary, the angle between the two sampling plates can be ensured to be stable. In this way, during sampling, the sampling plates can be controlled to be vertically inserted into the muck to improve the penetration force of the sampling plates. When sampling is completed and the sampling plates are clamped, a stable clamping force can be formed on the muck to prevent the muck from falling; 4) For the muck sampling device of the present invention, a soil scraping seat is provided. When sampling is completed and the sampling plates rise, through the relative lifting displacement between the sampling plates and the soil scraping seat, the muck exposed in the gap between the sampling plates can be scraped off, avoiding contamination or damage to the muck detection device and ensuring the accuracy of muck detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic structural diagram of the muck sampling device of the present invention.

[0025] Figure 2 It is a schematic connection structure diagram of the muck sampling device of the present invention and a robotic arm.

[0026] Figure 3 It is a schematic structural diagram of the internal components of the housing of the muck sampling device of the present invention.

[0027] Figure 4 It is a schematic rear view of the internal components of the housing of the muck sampling device of the present invention.

[0028] Figure 5 This is a front - side structural schematic diagram of the internal components of the housing of the muck sampling device of the present invention.

[0029] Figure 6 This is a structural schematic diagram of the internal components of the housing of the muck sampling device of the present invention (with one sampling plate removed).

[0030] Figure 7 This is a structural schematic diagram of the connection between the elastic earth - pushing plate and the connection seat of the earth - pushing component.

[0031] In the figure, there are housing 1, opening 11, flange seat 12, power signal connection seat 13, cable drag chain 14, lifting seat plate 2, limiting component 21, fixed seat plate 211, adjustable ejector rod 212, lifting drive component 3, sampling plate 4, groove 41, support part 42, sampling - plate opening - and - closing control component 5, opening - and - closing drive component 51, link mechanism 52, pushing block 521, connecting rod 522, rotating arm 523, angle - iron connecting piece 524, earth - pushing mechanism 6, earth - pushing drive component 61, earth - pushing component 62, mounting seat 621, first horizontal connecting plate 6211, opening slot 62111, vertical connecting plate 6212, second horizontal connecting plate 6213, connection seat 6214, bottom plate 62141, connecting column 62142, tension spring 6215, elastic earth - pushing plate 622, connecting part 6221, elastic earth - pushing part 6222, reinforcing angle iron 63, position sensor 7, soil - scraping seat 8, opening 81, scraper 82, dust - proof cover 9. Detailed implementation manners

[0032] The technical solutions of the present invention will be clearly and completely described below through embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts belong to the scope of protection of the present invention.

[0033] As Figures 1 to 7 shown, a muck sampling device for a muck truck of the present invention includes a housing 1, a lifting seat plate 2, a lifting drive component 3, a sampling plate 4, a sampling - plate opening - and - closing control component 5, and an earth - pushing mechanism 6; the lifting seat plate 2, the lifting drive component 3, the sampling plate 4, the sampling - plate opening - and - closing control component 5, and the earth - pushing mechanism 6 are all arranged inside the housing 1.

[0034] The housing 1 is a rectangular or other-shaped housing. An opening 11 is provided at the lower end of the housing 1. The sampling plate 4 can extend downward from the opening 11 to sample the muck on the muck truck. The housing 1 can be made of a high-strength anti-corrosion material. To facilitate the maintenance of the components inside the housing 1, the housing 1 can be set as a detachable housing. To facilitate the connection between the housing 1 and the robotic arm, a flange seat 12 that can be connected to the free end of the robotic arm is provided on the rear side plate of the housing 1.

[0035] To facilitate the detection of the height of the muck truck and the height of the muck loaded on the muck truck, a position sensor 7 is also provided on the housing 1. The position sensor 7 can be set at a position inside the housing 1 close to the opening 11 at the lower end of the housing 1.

[0036] The rear side plate of the housing 1 is a mounting plate, and the lifting drive assembly 3 is fixedly arranged on the rear side plate. The lifting drive assembly 3 can adopt a variety of electrically driven linear drive devices. For example, a lead screw transmission mechanism driven by a motor can be adopted. To prevent dust or muck from contaminating the lifting drive assembly, a dust-proof cover 9 can be arranged outside the lifting drive assembly 3. The dust-proof cover 9 is an elastic and telescopic dust-proof cover.

[0037] The lifting seat plate 2 is a plate-shaped member with a certain strength. The lifting seat plate 2 is fixedly connected to the lifting movable end of the lifting drive assembly 3. To ensure the stability of the lifting movement of the lifting seat plate 2, the lifting movable end of the lifting drive assembly 3 can adopt a long plate-shaped member.

[0038] There are two sampling plates 4. The two sampling plates 4 are arranged oppositely, and grooves 41 for accommodating muck are respectively arranged on the inner sides of the two sampling plates 4. A support portion 42 for retaining the clamped muck in the groove is arranged below the grooves 41 of the two sampling plates 4.

[0039] The sampling plate opening and closing control assembly 5 and the earth-pushing mechanism 6 are both fixedly arranged on the lifting seat plate 2. The sampling plate opening and closing control assembly 5 is arranged in the upper middle part of the lifting seat plate 2, and the earth-pushing mechanism 6 is arranged beside the sampling plate opening and closing control assembly 5.

[0040] The sampling plate opening and closing control assembly 5 includes an opening and closing drive assembly 51 and a linkage mechanism 52. The linkage mechanism 52 includes a push block 521, connecting rods 522, a swing arm 523, and an angle iron connector 524. The inner ends of the two connecting rods 522 are respectively movably connected to the left and right ends of the push block 521. The outer ends of the two connecting rods 522 are respectively connected to the upper free ends of the swing arm 523. The lower free end of the swing arm 523 is fixedly connected to the upper end of the corresponding sampling plate 4 through the angle iron connector 524. The swing arm 523 includes a vertical plate and a horizontal plate. The upper end of the vertical plate is the upper free end of the swing arm 523. The lower end of the vertical plate is fixedly connected to the outer end of the horizontal plate. The upper horizontal part of the angle iron connector 524 is fixedly connected to the lower surface of the horizontal plate. The upper end of the sampling plate 4 is fixedly connected to the vertical position at the lower part of the angle iron connector 524. The middle part of the swing arm 523 is movably connected to the lifting seat plate 2 through a rotating shaft.

[0041] In the above solution, a limit assembly 21 can also be provided on the lifting seat plate 2. The limit assembly 21 is arranged below the push block 521 of the sampling plate opening and closing control assembly 5. The limit assembly 21 includes a fixed seat plate 211 and an adjustable ejector rod 212 connected to the fixed seat plate 211. The adjustable ejector rod 212 faces the lower surface of the push block 521. By providing the limit assembly 21, the downward movement range of the push block 521 of the sampling plate opening and closing control assembly 5 can be restricted. Since the adjustable ejector rod 212 is adopted, the height of the adjustable ejector rod 212 can be adjusted according to the clamping force requirement of the sampling plate 4, so that the clamping force of the sampling plate 4 on the muck reaches the required state.

[0042] The opening and closing drive assembly 51 is used to drive the push block 521 to move up and down, and drive the opening and closing movement of the sampling plate 4 through the linkage mechanism 52. The opening and closing drive assembly 51 can adopt a variety of electric-driven linear drive devices. For example, a lead screw transmission mechanism driven by a motor can be adopted. In order to prevent dust or muck from contaminating the opening and closing drive assembly, a dust-proof cover 9 can be provided outside the opening and closing drive assembly. The dust-proof cover 9 is an elastic and telescopic dust-proof cover.

[0043] The earth-pushing mechanism 6 includes an earth-pushing drive assembly 61 and an earth-pushing assembly 62. The earth-pushing assembly 62 includes a mounting seat 621 and elastic earth-pushing plates 622. The mounting seat 621 is fixedly connected to the lifting movable end of the earth-pushing drive assembly 61. There are two elastic earth-pushing plates 622. The elastic earth-pushing plates 622 are respectively movably connected to both sides of the mounting seat 621. The two elastic earth-pushing plates 622 respectively extend into the groove 41 of the sampling plate 4.

[0044] Specifically, the mounting seat 621 of the earth-pushing assembly 62 includes a first horizontal connecting plate 6211, a vertical connecting plate 6212, a second horizontal connecting plate 6213 and a connecting seat 6214. The first horizontal connecting plate 6211 is fixedly connected to the lifting movable end of the earth-pushing driving assembly 61. An opening groove 62111 is provided in the middle of the first horizontal connecting plate 6211. The width of the opening groove 62111 is greater than the width of the sampling plate 4. The two sampling plates 4 pass through the opening groove 62111. The two vertical connecting plates 6212 are connected below the first horizontal connecting plate 6211. The two vertical connecting plates 6212 are respectively located on the front and rear sides of the gap between the two sampling plates 4, and the width of the vertical connecting plate 6212 is less than the width of the gap between the two sampling plates 4. The second horizontal connecting plate 6213 is fixedly connected to the lower parts of the two vertical connecting plates 6212. The second horizontal connecting plate 6213 passes through the gap between the two sampling plates 4. The connecting seat 6214 is fixedly connected to the lower surface of the second horizontal connecting plate 6213. The two elastic earth-pushing plates 622 are respectively movably connected to the left and right sides of the connecting seat 6214. The lower ends of the two elastic earth-pushing plates 622 respectively abut against the inner walls of the grooves 41 of the corresponding sampling plates 4. With this setting, after the muck sampling device sends the sampled muck to the muck detection device for detection, the robotic arm can move the muck sampling device to the muck collector. Then, the opening and closing driving assembly drives the lower parts of the two sampling plates to move outward, releasing the clamping of the muck. The lifting driving assembly drives the lifting seat to rise. At the same time, the earth-pushing driving assembly drives the earth-pushing assembly to descend, so that the elastic earth-pushing plates push the muck between the two sampling plates out of the grooves in the sampling plates and fall into the muck collector, facilitating further detection, analysis and backup of the collected muck.

[0045] The above-mentioned connecting seat 6214 includes a bottom plate 62141 and two connecting columns 62142 arranged on the upper surface of the bottom plate 62141. The connecting columns 62142 are fixedly connected to the second horizontal connecting plate 6213. An empty groove is formed between the two connecting columns 62142. Assembly grooves are respectively provided on the left and right sides of the bottom plate 62141. Assembly holes are provided on both sides of the assembly grooves. Through holes corresponding to the middle parts of the elastic earth-pushing plates 622 are provided. The elastic earth-pushing plates 622 are movably connected to the assembly grooves through connecting shafts. The upper parts of the two elastic earth-pushing plates 622 extend to a height corresponding to the empty groove. Spring connecting columns are provided on the inner side surfaces of the elastic earth-pushing plates 622. Two spring fixing columns corresponding to the spring connecting columns are provided on the lower surface of the second horizontal connecting plate 6213. The spring connecting columns on the two elastic earth-pushing plates 622 are correspondingly connected to the spring fixing columns on the lower surface of the second horizontal connecting plate 6213 through springs 6215.

[0046] A reinforcing angle iron 63 is provided between the above-mentioned first horizontal connecting plate 6211 and the lifting movable plate of the earth-pushing drive assembly 61. By providing the reinforcing angle iron 63, the connection between the first horizontal connecting plate 6211 and the lifting movable plate of the earth-pushing drive assembly 61 can be made more firm, and the bending deformation of the connecting part can be prevented, ensuring that the earth-pushing mechanism 6 can move linearly up and down, and making the pushing out of the muck more thorough.

[0047] The above-mentioned elastic earth-pushing plate 622 includes a connecting part 6221 and an elastic earth-pushing part 6222. The connecting part 6221 is movably connected to the connecting seat 6214. The elastic earth-pushing part 6222 is inclined and connected below the connecting part 6221 at an angle α. The inclination angle α can be set as required, preferably 30-60°, and the elastic earth-pushing part is inclined towards the groove 41 in the sampling plate 4. By setting the inclination angle of the elastic earth-pushing part 6222, the effect of pushing out the muck can be better.

[0048] The earth-pushing drive assembly 61 is used to drive the earth-pushing assembly to move downward, so that the elastic earth-pushing plate 622 slides downward in the groove 41 inside the sampling plate 4, and pushes out the muck in the sampling plate 4. The earth-pushing drive assembly 61 can adopt a variety of electric-driven linear drive devices. For example, a lead screw transmission mechanism driven by a motor can be adopted. In order to prevent dust or muck from polluting the opening and closing drive assembly, a dust-proof cover 9 can be provided outside the earth-pushing drive assembly. The dust-proof cover 9 is an elastic and telescopic dust-proof cover.

[0049] In the above solution, a soil scraping seat 8 can also be provided in the housing 1. The soil scraping seat 8 is arranged at the lower part of the sampling plate 4. An opening 81 is provided in the middle of the soil scraping seat 8. The sampling plate 4 passes through the opening 81. A scraping plate 82 is provided in the opening 81. The position of the scraping plate 82 is opposite to the gap between the two sampling plates 4. By providing the soil scraping seat 8 and the scraping plate 82, after the sampling plate 4 samples the muck from the muck truck and rises through the scraping plate 82, the scraping plate 82 can scrape off the excess muck outside the gap between the two sampling plates 4, avoiding polluting the detection instrument during subsequent muck detection.

[0050] In the above solution, a power signal connection seat 13 and a cable drag chain 14 are further provided on the inner wall of the housing 1. The power lines and signal lines of the opening and closing drive assembly 51 and the earth-moving drive assembly 61 all pass through the cable drag chain 14. The power lines and signal lines of the lifting drive assembly 3, the opening and closing drive assembly 51, and the earth-moving drive assembly 61 are respectively connected to the power signal connection seat 13. By providing the power signal connection seat 13, it is convenient for the lifting drive assembly 3, the opening and closing drive assembly 51, and the earth-moving drive assembly 61 to be connected to the power supply and controller outside the housing 1. Since the opening and closing drive assembly 51 and the earth-moving drive assembly 61 will move up and down with the lifting of the lifting seat plate 2, therefore, the power lines and signal lines are prone to entanglement or bending, and may even be pulled off. By providing the cable drag chain 14, it can protect the power lines and signal lines of the opening and closing drive assembly 51 and the earth-moving drive assembly 61 provided on the lifting seat plate 2.

[0051] When the soil sampling device for a muck truck of the present invention is in use, it is fixed to the free end of the robotic arm through a flange. When the muck truck drives to the muck detection platform beside the robotic arm, the robotic arm drives the soil sampling device to rise above the muck. The height of the muck truck and the height of the muck loaded on the muck truck are detected by the position sensor on the soil sampling device. The robotic arm moves to a position at a certain height above the muck. The lifting drive device drives the lifting seat plate to move downward, driving the sampling plate to move downward, and extending out from the opening below the housing and inserting into the muck on the muck truck. After the sampling plate is inserted into the muck to a certain depth, the opening drive assembly drives the pushing block to move downward, driving the connecting rod to rotate downward, driving the upper free end of the rotating arm to rotate outward, so that the sampling plate connected to the lower free end of the rotating arm rotates inward to clamp the sampled muck. Then the lifting drive device drives the lifting seat plate to move upward, retracting the sampling plate into the housing. When passing through the soil scraping seat, the scraper scrapes off the muck exposed outside the sampling plate. Then the robotic arm drives the soil sampling device to move to the detection port of the soil detection device. The lifting drive device drives the lifting seat plate to descend, so that the lower end of the sampling plate carries the sampled muck and extends into the detection port of the soil detection device to perform PID and XRF detections on the muck, obtaining data on the harmful gas content and heavy metal content in the muck. After the detection is completed, the lifting drive device drives the lifting seat plate to move upward, causing the sampling plate to leave the soil detection device. Then the robotic arm drives the soil sampling device to move to the muck recycler. The earth-moving drive assembly drives the earth-moving mechanism to move downward, driving the elastic earth-moving plate to move downward along the groove inside the sampling plate, and pushing the muck sampled in the sampling plate into the muck recycler for further detection or backup processing of the muck.

[0052] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art will appreciate that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A muck sampling device for a muck truck, characterized in that: it includes a housing, a lifting seat plate, a lifting drive assembly, a sampling plate, a sampling plate opening and closing control assembly and a soil pushing mechanism, and the lifting seat plate, the lifting drive assembly, the sampling plate, the sampling plate opening and closing control assembly and the soil pushing mechanism are all arranged in the housing; there are two of the sampling plates, the two sampling plates are arranged oppositely, and grooves for accommodating muck are respectively arranged on the inner sides of the two sampling plates, and a supporting part for retaining the clamped muck in the grooves is arranged below the grooves of the two sampling plates; the lifting drive assembly is fixed on the inner wall of the housing, the lifting seat plate is fixedly connected to the lifting movable end of the lifting drive assembly, and the sampling plate opening and closing control assembly and the soil pushing mechanism are both arranged on the lifting seat plate; the sampling plate opening and closing control assembly includes an opening and closing drive assembly and a link mechanism, the link mechanism includes a pushing block, links, a rotating arm and an angle iron connecting piece, the inner ends of the two links are respectively movably connected to the left and right ends of the pushing block, the outer ends of the two links are respectively correspondingly connected to the upper free ends of the rotating arm, and the lower free end of the rotating arm is fixedly connected to the upper end of the corresponding sampling plate through the angle iron connecting piece respectively. The rotating arm includes a vertical plate and a horizontal plate, the upper end of the vertical plate is the upper free end of the rotating arm, the lower end of the vertical plate is fixedly connected to the outer end of the horizontal plate, the upper horizontal part of the angle iron connecting piece is fixedly connected to the lower surface of the horizontal plate, and the upper end of the sampling plate is fixedly connected to the middle and lower part of the angle iron connecting piece in the vertical position. The middle part of the rotating arm is movably connected to the lifting seat plate through a rotating shaft; the opening and closing drive assembly is used to drive the pushing block to move up and down, and drive the opening and closing movement of the sampling plate through the link mechanism; the soil pushing mechanism includes a soil pushing drive assembly and a soil pushing assembly, the soil pushing assembly includes a mounting seat and an elastic soil pushing plate, the mounting seat is fixedly connected to the lifting movable end of the soil pushing drive assembly, there are two elastic soil pushing plates, the elastic soil pushing plates are respectively movably connected to both sides of the mounting seat, and the two elastic soil pushing plates respectively extend into the grooves of the sampling plates; the lifting drive assembly, the opening and closing drive assembly and the soil pushing drive assembly are all electric linear drive devices; a position sensor is arranged on the housing, and the position sensor is used to detect the height of the muck truck and the muck on the muck truck; a soil scraping seat is also arranged in the housing, the soil scraping seat is arranged below the sampling plate, an opening is arranged in the middle of the soil scraping seat, the sampling plate passes through the opening, and a scraping plate is arranged in the opening, and the position of the scraping plate is opposite to the gap between the two sampling plates.

2. The muck sampling device for a muck truck according to claim 1, characterized in that: The mounting seat of the earth-moving assembly includes a first horizontal connecting plate, a vertical connecting plate, a second horizontal connecting plate and a connecting seat. The first horizontal connecting plate is fixedly connected to the lifting movable end of the earth-moving driving assembly. An opening groove is provided in the middle of the first horizontal connecting plate. The width of the opening groove is greater than the width of the sampling plate. Two sampling plates pass through the opening groove. Two vertical connecting plates are connected below the first horizontal connecting plate. The two vertical connecting plates are respectively located on the front and rear sides of the gap between the two sampling plates, and the width of the vertical connecting plate is less than the width of the gap between the two sampling plates. The second horizontal connecting plate is fixedly connected to the lower parts of the two vertical connecting plates. The second horizontal connecting plate passes through the gap between the two sampling plates. The connecting seat is fixedly connected to the lower surface of the second horizontal connecting plate. The two elastic earth-moving plates are respectively movably connected to the left and right sides of the connecting seat. The lower ends of the two elastic earth-moving plates respectively abut against the inner walls of the grooves of the corresponding sampling plates.

3. The muck sampling device for a muck truck according to claim 2, characterized in that: The connecting seat includes a bottom plate and two connecting columns arranged on the upper surface of the bottom plate. The connecting columns are fixedly connected to the second horizontal connecting plate. An empty groove is formed between the two connecting columns. Assembly grooves are respectively provided on the left and right sides of the bottom plate. Assembly holes are provided on both sides of the assembly groove. Through holes corresponding to the middle parts of the elastic earth-moving plates are provided. The elastic earth-moving plates are movably connected to the assembly grooves through connecting shafts. The upper parts of the two elastic earth-moving plates extend to a height corresponding to the empty groove. Spring connecting columns are provided on the inner side surfaces of the elastic earth-moving plates. Two spring fixing columns corresponding to the spring connecting columns are provided on the lower surface of the second horizontal connecting plate. The spring connecting columns on the two elastic earth-moving plates are correspondingly connected to the spring fixing columns on the lower surface of the second horizontal connecting plate through springs.

4. The muck sampling device for a muck truck according to claim 2, characterized in that: A reinforcing angle iron is provided between the first horizontal connecting plate and the lifting movable plate of the earth-moving driving assembly.

5. The muck sampling device for a muck truck according to claim 2, characterized in that: The elastic earth-moving plate includes a connecting part and an elastic earth-moving part. The connecting part is movably connected to the connecting seat. The elastic earth-moving part is obliquely connected to the lower part of the connecting part at an angle α, and the elastic earth-moving part is obliquely arranged towards the groove in the sampling plate.

6. The muck sampling device for a muck truck according to claim 1, characterized in that: A power signal connecting seat and a cable drag chain are further provided on the inner wall of the housing. The power supply lines of the opening and closing driving assembly and the earth-moving driving assembly all extend to the power signal connecting seat through the cable drag chain.

7. The muck sampling device for a muck truck according to claim 1, characterized in that: Dust-proof covers are provided outside the lifting driving assembly, the opening and closing driving assembly and the earth-moving driving assembly. The dust-proof covers are elastic and telescopic dust-proof covers.

8. The muck sampling device for a muck truck according to claim 1, characterized in that: A limiting component is provided on the lifting seat plate. The limiting component is arranged below the pushing block of the sampling plate opening and closing control component. The limiting component includes a fixed seat plate and an adjustable ejector rod connected to the fixed seat plate. The adjustable ejector rod faces the lower surface of the pushing block.

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