Wetland deep ecological soil sampling device

Abstract

The wetland deep ecological soil sampling device comprises an outer frame, a chain plate sampling mechanism, a sample receiving box and a combined handle, and folding supporting legs are symmetrically installed on the outer end faces of the front side and the rear side of the outer frame; the chain plate sampling mechanism comprises a sampling frame, a driving mechanism and a chain plate conveying mechanism, the sampling frame comprises a platform plate and a conveying support frame, the platform plate is slidably mounted in the outer frame in the vertical direction, and the conveying support frame is vertically arranged below the platform plate and connected with the platform plate; precise deep sampling of wetland deep soil is realized through cyclic movement of the sample shoveling bucket of the chain plate conveying mechanism, so that sample falling is reduced, and the sampling precision and integrity are improved.

Description

Technical Field

[0001] This invention belongs to the field of wetland soil sampling technology, specifically relating to a wetland deep ecological soil sampling device. Background Technology

[0002] Wetlands, as one of the most important ecosystems on Earth, play an irreplaceable role in maintaining biodiversity, regulating the hydrological cycle, and improving water quality. To better understand the ecological environment of wetlands, sampling and analyzing deep wetland soil has become an important research method. However, existing soil sampling devices have significant limitations in soft soil conditions such as wetlands.

[0003] Currently, commonly used soil sampling tools mostly employ a cylindrical structure with an open bottom. When using this type of sampler, the operator vertically inserts the sampler into the soil, applying downward force to push the cylinder into the soil. During insertion, soil gradually fills the inside of the cylinder. During lifting, the soil inside the cylinder is simultaneously brought to the surface due to friction and gravity, thus achieving deep sampling. However, in actual operation, this sampling method has two major drawbacks: First, when the cylindrical sampler is lifted vertically upwards, it extracts soil from the entire depth along with the surface soil. This sampling method cannot accurately distinguish between soil layers at different depths, leading to inaccurate stratigraphic information in the sampling data. Inaccurate sampling results in data distortion, which in turn affects the judgment of pollutant migration patterns. Second, during lifting, due to the high moisture content of wetland soil, the soil at the bottom of the cylinder is prone to loosening and falling off. Sample loss not only reduces the amount of usable soil but may also lead to insufficient sample representativeness, further affecting the integrity and representativeness of the sampling. These problems not only limit the reliability of research data but also increase the difficulty of subsequent sample processing. Summary of the Invention

[0004] To address the shortcomings and problems of existing wetland soil sampling methods, this invention provides a wetland deep ecological soil sampling device. This device aims to achieve precise deep sampling of wetland deep soil through the cyclical movement of the shovel bucket via a chain conveyor mechanism, thereby reducing sample loss and improving sampling accuracy and integrity.

[0005] The solution adopted by this invention to solve its technical problem is: a wetland deep ecological soil sampling device, including an outer frame, a chain plate sampling mechanism, a sample receiving box, and a combined handle. Folding support legs are symmetrically installed on the outer end faces of the front and rear sides of the outer frame. The chain plate sampling mechanism includes a sampling frame, a drive mechanism, and a chain plate conveying mechanism. The sampling frame includes a platform plate and a conveying support frame. The platform plate is vertically slidably installed inside the outer frame, and the conveying support frame is vertically arranged below the platform plate and connected to it. The chain plate lifting mechanism is vertically installed on the conveying... Inside the support frame and connected to the drive mechanism, the circulating motion surface of the chain plate lifting mechanism protrudes from the conveying support frame, and multiple sample buckets are installed at intervals along the motion direction on the circulating motion surface of the chain plate lifting mechanism. The opening direction of the sample buckets is the same as the sample lifting direction. A sampling window is matched to the bottom of the outer frame below the conveying support frame. A sample throwing window is provided vertically on the side wall of the outer frame on the side of the descent trajectory of the sample bucket. The sample receiving box is hung on the outer end face of the outer frame at the bottom of the sample throwing window, and a box cover is hinged on the side of the sample receiving box away from the sample throwing window. The combined handle includes a central handle fixedly installed at the top center of the outer frame. Side handles are symmetrically provided on the left and right sides of the central handle. The side handles are hinged to the platform plate and extend outward from the outer frame. When the platform plate is at the top, driving the two side handles to rotate around the hinge end can combine with the central frame to form a carrying handle.

[0006] The conveying support frame includes two frame plates spaced longitudinally, and two fixed shafts are installed vertically parallel between the two frame plates. The two frame plates are fixedly connected together at the middle between the two fixed shafts, and connecting arms are fixedly installed on the outer top surfaces of both frame plates. The top ends of the connecting arms are fixedly connected to the platform plate. The two ends of the fixed shafts are respectively rotatably mounted on the same side frame plates, and the chain plate conveying mechanism is matched and mounted on the two fixed shafts, and is connected to the drive mechanism through the fixed shafts.

[0007] One end of the fixed shaft located on the upper side extends outward from the frame plate. The drive mechanism includes a motor that is fixedly mounted on the platform plate in the longitudinal direction. The motor is connected to a power supply and a controller. The motor shaft extends outward from the platform plate and is connected to the end of the fixed shaft that extends outward from the frame plate.

[0008] Both of the outer end faces of the frame plates are provided with guide grooves along the vertical direction. A slider is slidably installed in the guide groove along the vertical direction. The slider extends outward from the guide groove and is fixedly connected to the inner wall of the outer frame on the adjacent side.

[0009] The chain conveyor mechanism includes two sets of sprockets spaced apart along the longitudinal direction. Each sprocket set includes a plate chain and two support sprockets. The two support sprockets are respectively fixedly mounted on upper and lower fixed shafts and are connected together by the plate chain drive. The support frame is located in the outer circulation motion surface of the plate chain. The two ends of the shovel bucket are respectively matched and installed on the plate chains of the adjacent side sprocket sets.

[0010] The shovel bucket has conveying support frames extending outward from both its left and right ends.

[0011] The folding support leg includes a guide column, a locking assembly, and a double support rod. The upper and lower ends of the guide column are fixedly connected to the end face of the outer frame on the same side, and the guide column is arranged parallel to and spaced apart from the outer frame. A ring seat is fixedly fitted at the bottom end of the guide column. A sliding sleeve is slidably installed on the guide column above the ring seat along the vertical edge, and the upper connecting seat position can be locked by the locking assembly. A double support rod is provided on the left and right sides of the guide column and on the side away from the outer frame. The double support rod includes an upper rod body and a lower rod body. The top end of the upper rod body is hinged to the sliding sleeve, the tail end of the upper rod body is hinged to the top end of the lower rod body, and the tail end of the lower rod body is hinged to the ring seat.

[0012] The locking assembly includes two nuts, and the outer ring surface of the guide post is provided with internal threads. The two nuts are respectively fitted onto the guide posts on the upper and lower sides of the slide groove.

[0013] The beneficial effects of this invention are as follows: The wetland deep ecological soil sampling device provided by this invention achieves layer-by-layer sampling through the cyclic movement of the chain plate shovel sampling bucket, effectively avoiding sample drop and mixing, and improving sampling accuracy and integrity. Specifically, it includes the following beneficial effects: The shovel bucket scoops up and throws out soil layers one by one, ensuring that soil samples obtained from a specific depth are not contaminated by soil from other layers, thus improving the accuracy of sampling.

[0014] The shovel bucket effectively prevents soil from falling off as it moves upwards, ensuring the integrity and representativeness of the sample.

[0015] The design, which combines handles and folding support legs, allows operators to easily control the raising and lowering of the device without the aid of additional equipment, improving the convenience and efficiency of field operations.

[0016] The cyclic shovel method effectively avoids damage or loss of soil samples during the sampling process, ensuring the integrity and representativeness of the samples.

[0017] The design of the sample collection box allows for the direct collection of soil samples ejected from the shovel hopper, simplifying the sample collection process and facilitating subsequent sample processing and analysis. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural schematic diagram of the present invention.

[0019] Figure 2 This is a schematic diagram of the external frame structure of the present invention.

[0020] Figure 3 This is a schematic diagram of the sampling frame structure of the present invention.

[0021] Figure 4 yes Figure 3 Enlarged schematic diagram of the structure at point A in the middle.

[0022] Figure 5 This is a schematic diagram of the shovel bucket structure of the present invention.

[0023] Figure 6 This is a schematic diagram of the transmission support frame structure of the present invention.

[0024] Figure 7 This is a schematic diagram of the locking component structure of the present invention.

[0025] Figure 8 This is a schematic diagram of the internal structure of the shovel bucket of this invention.

[0026] The diagram labels are as follows: 1 is the outer frame, 11 is the sample throwing window, 12 is the sampling window, 2 is the sampling frame, 21 is the platform plate, 22 is the conveyor support frame, 221 is the frame plate, 2211 is the guide chute, 2212 is the slider, 222 is the fixed shaft, 223 is the connecting arm, 3 is the drive mechanism, 31 is the motor, 32 is the transmission chain, 4 is the chain plate lifting mechanism, 41 is the sprocket assembly, 411 is the plate chain, 412 is the support sprocket, 413 is the shaft, 5 is the shovel bucket, 51 is the fixed base, 5 2 is the outer shell of the sample shovel, 52 is the inner shovel, 6 is the sample receiving box, 61 is the box cover, 7 is the folding support leg, 71 is the guide post, 72 is the locking assembly, 721 is the fixing sleeve, 722 is the locking rod shell, 7222 is the locking block rod, 7223 is the locking block, 7224 is the locking head block, 7225 is the top spring a, 7226 is the stop bar, 723 is the lever block, 724 is the obtuse angle handle, 73 is the double support rod, 731 is the upper rod body, 732 is the lower rod body, 74 is the sliding sleeve, and 75 is the ring seat. 8 is the combination handle, 81 is the center handle, and 82 is the side handle. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments. Example

[0028] To address the problems mentioned in the background section, this embodiment provides a wetland deep ecological soil sampling device, such as... Figure 1-6As shown, the device includes an outer frame 1, a chain plate sampling mechanism, a sample receiving box 6, and a combined handle 8. Folding support legs 7 are symmetrically installed on the outer end faces of the front and rear sides of the outer frame 1 to provide stable support for the device during sampling. Each folding support leg 7 includes a guide post 71, a locking assembly 72, and a double support rod 73. The upper and lower ends of the guide post 71 are fixedly connected to the end face of the outer frame 1 on the same side, and the guide post 71 is parallel and spaced apart from the outer frame 1. For example, both the upper and lower ends of the guide post 71 are fixedly connected to connecting blocks by bolts, and the other end of the connecting block is welded or bolted to the outer frame 1. Fixed connection; a ring seat 75 is fixedly fitted at the bottom end of the guide column 71, and a sliding sleeve 74 is slidably installed on the upper edge of the guide column 71 above the ring seat 75. The upper connecting seat position can be locked by the locking assembly 72. A double support rod 73 is provided on the left and right sides of the guide column 71 and on the side away from the outer frame 1. The double support rod 73 includes an upper rod body 731 and a lower rod body 732. The top end of the upper rod body 731 is hinged to the sliding sleeve 74, the tail end of the upper rod body 731 is hinged to the top end of the lower rod body 732, and the tail end of the lower rod body 732 is hinged to the ring seat 75. Specifically: like Figure 2 As shown, the ring seat 75 is welded to the guide post 71. Hinges are fixed to the outer ring surfaces of the ring seat 75 and the sliding sleeve 74 on both sides, as well as on the outer ring surface away from the outer frame 1. The top end of the upper connecting rod of the double support rod 73 is mounted in the hinge seat on the same side of the sliding sleeve 74 via a pin. The tail end of the upper rod 731 is hinged to the top end of the lower rod 732 via a small circumference. The tail end of the lower rod 732 is mounted in the hinge seat on the same side of the ring seat 75 via a pin. The length of the upper connecting rod in the double support rod 73 is greater than the length of the lower connecting rod. When the sliding sleeve 74 slides downwards... When in motion, the upper rod 731 of the three double-linked support rods 73 will follow the movement of the sliding sleeve 74 to drive the lower rod 732 to flip downward around the corresponding hinge seat on the ring seat 75, thereby controlling the unfolding of the folding support leg 7. This causes the hinge ends of the upper and lower connecting rods of the three double-linked support rods 73 to contact the ground, thus supporting the device. Conversely, when the sliding sleeve 74 is controlled to slide upward, the upper rod 731 of the three double-linked support rods 73 will follow the movement of the sliding sleeve 74 to drive the lower rod 732 to flip upward around the corresponding hinge seat on the ring seat 75, thereby controlling the folding support leg 7 to fold.

[0029] There are various types of locking components 72. In this embodiment, the locking component 72 includes two nuts. The outer ring surface of the guide post 71 is provided with internal threads. The two nuts are respectively fitted onto the guide posts 71 on the upper and lower sides of the slide groove. In use, the position of the two nuts is adjusted by the knob to clamp the slide sleeve 74, thereby locking the position of the slide sleeve 74.

[0030] The chain plate sampling mechanism includes a sampling frame 2, a drive mechanism 3, and a chain plate conveying mechanism. The sampling frame 2 includes a platform plate 21 and a conveying support frame 22. The platform plate 21 is vertically slidably installed inside the outer frame 1. There are various ways to vertically slide the platform plate 21 inside the outer frame 1. For example, the shape and size of the platform plate 21 match the shape and size of the internal space of the outer frame 1, so that the platform plate 21 is fitted inside the outer frame 1 and can slide vertically along the inner walls of the outer frame 1.

[0031] The conveyor support frame 22 is vertically positioned below and connected to the platform plate 21. The chain plate lifting mechanism 4 is vertically installed inside the conveyor support frame 22 and is connected to the drive mechanism 3. The circulating motion surface of the chain plate lifting mechanism 4 protrudes from the conveyor support frame 22, and multiple sample hoppers 5 are spaced apart along the motion direction on the circulating motion surface of the chain plate lifting mechanism 4. The opening direction of the sample hoppers 5 is the same as the sample lifting direction. A sample throwing window 11 is provided vertically on the side wall of the outer frame 1 on the side of the descent trajectory of the sample hopper 5. Specifically: like Figure 6 As shown, the conveyor support frame 22 includes two longitudinally spaced frame plates 221. Two fixed shafts 222 are vertically parallel and installed between the two frame plates 221. The two frame plates 221 are fixedly connected at the middle between the two fixed shafts 222. There are various ways to fix the two plates together; for example, a connecting block is vertically installed between the two frame plates 221 between the two fixed shafts 222, with both ends of the connecting block fixedly connected to the adjacent frame plates 221. Connecting arms 223 are bolted to the outer top surfaces of both frame plates 221. The top ends of the connecting arms 223 are bolted to the platform plate 21, so that when the platform plate 21 rises and falls, it drives the conveyor support frame 22 and the chain plate lifting mechanism 4 and the shovel bucket 5 mounted on the conveyor support frame 22 to rise and fall synchronously. The two ends of the fixed shafts 222 are rotatably mounted on the same side frame plate 221. The chain plate conveying mechanism is matched and mounted on the two fixed shafts 222, and is connected to the drive mechanism 3 through the fixed shafts 222.

[0032] One end of the fixed shaft located on the upper side extends outward to form a frame plate. The drive mechanism includes a motor that is fixedly mounted on the platform plate along the longitudinal direction. The motor is connected to a power supply and a controller. The motor shaft extends outward to form a platform plate and is connected to the end of the upper fixed shaft that extends outward to form a frame plate. There are various ways to connect the two. For example, both the motor shaft of the motor 31 and the end of the upper fixed shaft that extends outward to form a frame plate are fitted with sprockets. The two sprockets are connected together by a transmission chain 32.

[0033] The chain conveyor mechanism includes two sets of sprocket groups 41 arranged longitudinally at intervals. Each sprocket group 41 includes a plate chain 411 and two support sprockets 412. The two support sprockets 412 are respectively fixedly mounted on upper and lower fixed shafts 222, and the two support sprockets 412 are connected together through the plate chain 411. The support frame is located in the outer circulation motion surface of the plate chain 411. The two ends of the shovel bucket 5 are respectively matched and installed on the plate chain 411 of the adjacent side sprocket groups 41. When the drive mechanism 3 drives the fixed shaft 222 to rotate, the rotating fixed shaft 222 will synchronously drive the chain conveyor mechanism to drive the shovel bucket 5 on the outer circulation motion surface to move cyclically.

[0034] There are several ways to connect the shovel bucket 5 to the plate chains 411 in the two side sprocket assemblies 41. For example, the shovel bucket 5 can be connected to the left and right side plate chains 411 through a transition connection structure. The transition connection structure includes two shafts 413 spaced apart along the conveying direction of the chain conveyor mechanism. The two ends of the shafts 413 are respectively connected to the links of the adjacent side plate chains 411. The shovel bucket 5 is rotatably mounted on either of the two shafts 413, and the shovel bucket 5 is slidably connected to the other shaft 413 and can rotate around the slidably connected shaft 413. Specifically, the end face of the shovel bucket 5 adjacent to the chain conveyor mechanism is provided with two fixed seats 51 at intervals along the conveying direction. Both fixed seats 51 are located between the two chain plates 411. The fixed seat 51 on the same side as the conveying direction has a shaft hole in the middle and is rotatably mounted on the shaft 413 on the same side as the conveying direction. The fixed seat 51 on the same side as the conveying direction has a flat hole in the middle and is matched and mounted on the shaft 413 on the opposite side of the conveying direction. The shaft 413 can rotate and slide within the flat hole.

[0035] The sample receiving box 6 is hung on the outer end face of the outer frame 1 at the bottom of the sample throwing window 11, and the sample receiving box 6 is hinged to the side away from the sample throwing window 11 (11) with a box cover 61; the combined handle 8 includes a central handle 81 fixedly installed at the top center of the outer frame 1, and side handles 82 are symmetrically provided on the left and right sides of the central handle. The side handles are hinged to the platform plate 21 and extend outward from the outer frame 1. When the platform plate 21 is at the top, the two side handles can be driven to rotate around the hinge end to form a carrying handle with the central frame.

[0036] When sampling deep ecological soil in wetlands, after transporting the wetland deep ecological soil sampling device provided in this embodiment to the sampling area by carrying the handle, unfold the folding support legs 7 on the front and rear sides of the outer frame 1 to stabilize the device; then move the handles on both sides to make them flip outwards and contact the surface of the platform plate 21. The operator stands in front of or behind the device, holding the handles on both sides with both hands to control the height of the chain plate sampling mechanism, and then starts the drive mechanism 3 to make the chain plate conveying mechanism start moving, driving the shovel bucket 5 to move in a cycle; then press down the side handle to drive the platform plate 21 to move down, and the conveyor support frame 22 carrying the chain plate conveying mechanism gradually moves down through the sampling window 12 and extends out of the outer frame 1. During this process, the shovel bucket 5, which is moving in a cycle, will scoop up soil when it moves downwards and turns. As the soil moves from upward to downward, the soil in the shovel bucket 5 is thrown out through the throwing window 11. As the chain plate sampling mechanism gradually moves downward, the shovel bucket 5 continuously scoops up and throws out soil layers, forming a sampling trough with increasing depth. When the chain plate sampling mechanism reaches the target sampling depth, the cover plate above the sample receiving box 6 is opened. As the chain plate sampling mechanism continues to move downward, the soil scooped up and thrown out by the shovel bucket 5 falls into the sample receiving box 6. Compared with the existing cylindrical sampler, the wetland deep ecological soil sampling device provided in this embodiment scoops up and throws out soil layers one by one by the shovel bucket 5, ensuring that the soil sample obtained from a specific depth is not contaminated by soil from other layers, thus improving the sampling accuracy. When the shovel bucket 5 moves upward, it can effectively prevent soil from falling off, ensuring the integrity and representativeness of the sample.

[0037] After sampling is completed, close the cover of the sample receiving box 6, remove the sample receiving box 6, lift the side handles with both hands, and lift the chain plate sampling mechanism back into the outer frame 1. When the platform plate 21 is at the top, drive the two side handles to rotate around the hinge end and form a carrying handle with the center handle. After lifting the entire device by holding the carrying handle, it can be moved to the next sampling area for sampling. Example

[0038] The difference between Example 2 and Example 1 is that both ends of the shovel bucket 5 extend outwards to form a conveying support frame 22 with a connecting arm 223. The top of the connecting arm 223 extends longitudinally outwards to the outside of the moving trajectory of the shovel bucket 5 and is fixedly connected to the platform plate 21 by bolts. Thus, during the sampling process, the size of the sampling trough formed by the shovel bucket 5 is larger than that of the conveying support frame 22. As the chain plate sampling mechanism gradually moves down, the conveying support frame 22 will not directly contact the sampling trough, thereby reducing the resistance during the sampling process and making the entire sampling process smoother. Example

[0039] The difference between Example 3 and Example 2 is that, as Figure 2 and Figure 6As shown, both outer end faces of the two frame plates 221 are provided with guide grooves 2211 along the vertical direction. A slider 2212 is slidably installed in the guide groove 2211 along the vertical direction. The slider 2212 extends outward from the guide groove 2211 and is fixedly connected to the inner wall of the outer frame 1 on the adjacent side. The slider 2212 is located at the bottom of the outer frame 1. When the sampling frame 2 extends downward through the sampling window 12 and out of the outer frame 1, the sliders 2212 on both sides will constrain the movement trajectory of the sampling frame 2, making its movement more stable. Example

[0040] The difference between Example 4 and Example 3 lies in the structure of the locking component 72, such as... Figure 7 As shown, the guide post 71 is a square post, and the outward end of the guide post is provided with right-angle teeth at intervals along the vertical direction, with the inclined end face of the right-angle teeth facing upward; the sliding sleeve is slidably mounted on the guide post 71 along the vertical direction, and the locking assembly 72 includes a fixing sleeve 721 that is slidably mounted on the guide post 72 above the sliding sleeve along the vertical direction. The fixing sleeve 721 is fixedly connected to the lower sliding sleeve 74. There are various ways to fix the two together, such as welding the top of the sliding sleeve and the bottom of the fixing sleeve 721 together.

[0041] A locking rod housing 722 is fitted to the outward-facing end of the fixed sleeve. The locking rod housing has a lock head window communicating with the interior of the fixed sleeve at its outward-facing end. A locking rod assembly is installed inside the locking rod housing 722. An unlocking handle is fitted to the top of the locking rod housing. The retractable rod assembly includes a locking block 7223 slidably installed within the locking rod housing 722. A lock head block 7224 matching right-angle teeth is located at the outward-facing end of the locking block 7223. The bottom surface of the lock head has a chamfered edge matching the beveled end face of the right-angle teeth. A locking block rod 722 is vertically installed at the outward-facing end of the locking block 7223. 2. The locking block rod 7222 extends outward through the outer wall of the locking rod housing, and a top spring a7225 is matched and installed on the locking block rod 7222 inside the locking rod housing 722. In its natural state, the top spring a7225 will push the locking block 7223 forward, causing the locking head block 7224 to pass through the locking head window and insert into the fixing sleeve to engage with the right-angle teeth on the guide post, thereby preventing the sliding sleeve 74 from moving upward. When the locking rod housing is pressed down, the chamfered edge of the locking head block 7224 will slide outward along the chamfered end of the right-angle teeth, causing the locking head block 7224 to retract into the locking rod housing to avoid the right-angle teeth.

[0042] The unlocking handle includes a hinge shaft that is rotatably mounted on the top of the lock bar housing. An obtuse angle handle 724 is fixedly mounted on the hinge shaft. The obtuse angle handle includes a horizontal section fixedly mounted on the hinge shaft. The other end of the horizontal section extends outward from the lock bar housing and is connected to a lifting section. When not in use, the horizontal section of the obtuse angle handle 724 is attached to the top of the lock bar housing.

[0043] Both ends of the hinge shaft of the obtuse angle handle extend outwards into the lock rod housing, and symmetrically fixed to the set of paddle blocks 723. A paddle rod is fixedly installed at the bottom of the paddle block. The lock block rod 7222 extending out of the lock rod housing 722 is inclined, and the left and right ends of the lock block rod 7222 on the side away from the guide post are symmetrically provided with stop bars 7226. When the obtuse angle handle 724 is pulled upwards, the obtuse angle handle 724 will rotate around the hinge end towards the guide post. During this process, the paddle block 723 will drive the paddle rod to rotate upwards with the hinge shaft and abut against the stop bar 7226. During the rotation of the paddle rod, it will push the stop bar 7226 outwards, causing the lock block rod 7222 to drive the lock head block 7224 to retract into the lock rod housing 722 through the lock block 7223, so that the locking assembly is unlocked and the sliding sleeve can be pulled up and moved along the guide post 71. Example

[0044] The difference between Example 5 and Example 4 lies in the structure of the shovel bucket, such as... Figure 8 As shown, the shovel bucket 5 includes a shovel bucket shell 52 with a fixed base 51. An inner shovel bucket 53 is slidably installed inside the shovel bucket shell 52 along the opening direction of the shovel bucket shell. When the opening of the shovel bucket shell 52 faces downward, the shovel end of the inner shovel bucket 53 will slide downward and extend out of the shovel bucket 5, so that when the shovel bucket 5 moves downward and turns, the inner shovel bucket 53 extends out and scoops up the soil. Conversely, when the opening of the shovel bucket 5 faces upward, the shovel end of the inner shovel bucket 53 will slide back into the shovel bucket 5, so that when the inner shovel bucket 53 slides downward and extends out, the soil in the inner shovel bucket will automatically fall under the action of inertia, which can effectively avoid the soil remaining in the bucket.

[0045] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of the invention and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of the invention should be included within the protection scope of the invention. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A wetland deep ecological soil sampling device, characterized in that It comprises an outer frame, a chain plate sampling mechanism, a sample receiving box and a combined handle, and folding support legs are symmetrically installed on the outer end surfaces of the front and rear sides of the outer frame; the chain plate sampling mechanism comprises a sampling frame, a driving mechanism and a chain plate conveying mechanism, and the sampling frame comprises a platform plate and a conveying support frame, the platform plate is vertically slidably installed in the outer frame, and the conveying support frame is vertically arranged below the platform plate and connected to the platform plate; the chain plate lifting mechanism is vertically installed in the conveying support frame and is transmission-connected with the driving mechanism, the circulating motion surface of the chain plate lifting mechanism protrudes from the conveying support frame, and a plurality of shovel sample buckets are installed at intervals along the moving direction on the circulating motion surface of the chain plate lifting mechanism, and the opening direction of the shovel sample bucket is the same as the lifting direction of the shovel sample; and a sampling window is matched with the bottom of the outer frame below the conveying support frame, and a sample throwing window is vertically provided on the side wall of the outer frame on the descending motion trajectory of the shovel sample bucket, and the sample receiving box is hung on the outer end surface of the outer frame at the bottom of the sample throwing window, and a box cover is hingedly installed on the side of the sample receiving box away from the sample throwing window; The combined handle includes a central handle fixedly mounted on the top center of the outer frame, and side handles are symmetrically arranged on the left and right sides of the central handle. The side handles are hingedly mounted on the platform plate and extend outward from the outer frame. When the platform plate is located at the top, the side handles are driven to flip toward each other around the hinged ends to form a carrying handle combined with the central frame.

2. The wetland deep ecological soil sampling device according to claim 1 is characterized in that: The conveying support frame includes two frame plates arranged at intervals along the longitudinal direction, two fixed shafts are installed between the two frame plates along vertical parallel intervals, the middle parts of the two frame plates between the two fixed shafts are fixedly connected together, and connecting arms are fixedly installed on the outer end surfaces of the tops of the two frame plates, and the tops of the connecting arms are fixedly connected to the platform plates; the two ends of the fixed shafts are respectively rotatably installed on the frame plates on the same side, and the chain plate conveying mechanism is matched and installed on the two fixed shafts, and is connected to the driving mechanism through the fixed shafts.

3. The wetland deep ecological soil sampling device according to claim 2 is characterized in that: One end of the fixed shaft located on the upper side extends outward from the frame plate, and the driving mechanism includes a motor fixedly installed on the platform plate along the longitudinal direction, and the motor is connected to a power supply and a controller; the motor shaft of the motor extends outward from the platform plate and is transmission-connected to one end of the fixed shaft extending out of the frame plate.

4. The wetland deep ecological soil sampling device according to claim 2 is characterized in that: The outer end surfaces of the two frame plates are both provided with guide grooves in the vertical direction, and sliders are installed in the guide grooves for vertical sliding. The sliders extend outwards from the guide grooves and are fixedly connected to the inner walls of the outer frames on the adjacent sides.

5. The wetland deep ecological soil sampling device according to claim 2 is characterized in that: The chain plate transmission mechanism includes two groups of sprocket groups arranged at intervals along the longitudinal direction. The sprocket groups include a plate chain and two supporting sprockets. The two supporting sprockets are respectively fixedly mounted on the upper and lower fixed shafts, and the two supporting sprockets are connected together through the plate chain transmission, and the support frame is located in the outer circulating motion surface of the plate chain. The two ends of the shovel bucket are respectively matched and installed on the plate chains of the adjacent side sprocket groups.

6. The wetland deep ecological soil sampling device according to claim 5 is characterized in that: The left and right ends of the shovel bucket both extend outwards to form a conveying support frame.

7. The wetland deep ecological soil sampling device according to claim 1 is characterized in that: The folding support leg includes a guide column, a locking assembly and a double support rod, the upper and lower ends of the guide column are fixedly connected to the end face of the outer frame on the same side, and the guide column and the outer frame are arranged in parallel and spaced apart; the bottom end of the guide column is fixedly sleeved with a ring seat, and a sliding sleeve is vertically slidably installed on the upper edge of the guide column above the ring seat, and the upper side connected to the seat position can be locked by the locking assembly, and a double support rod is provided on the left and right sides of the guide column and on the side away from the outer frame, the double support rod includes an upper rod body and a lower rod body, the top end of the upper rod body is hinged to the sliding sleeve, the tail end of the upper rod body is hinged to the top end of the lower rod body, and the tail end of the lower rod body is hinged to the ring seat.

8. The wetland deep ecological soil sampling device according to claim 7, characterized in that: The locking assembly includes two nuts. An inner thread is matched on the outer ring surface of the guide column. The two nuts are matched and sleeved on the guide columns on the upper and lower sides of the slide groove respectively.

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