Soil sampling device for land resource planning

Abstract

The invention discloses a soil sampling device for land resource planning, which comprises a drilling sampling mechanism, the drilling sampling mechanism comprises a stable bottom plate, the top of the stable bottom plate is provided with a material containing switching mechanism, the material containing switching mechanism comprises a bearing sliding plate, the top of the stable bottom plate is fixedly connected with a guide sliding top frame through a bracket, and the bearing sliding plate is fixedly connected with the guide sliding top frame. The two sides of an inner cavity of the guide sliding top frame are each provided with a guide sliding base in a sliding manner. According to the soil sampling device for land resource planning, the drilling sampling mechanism and the material containing switching mechanism are used in a combined mode, through the arrangement of the structures, a spiral drill can be used for drilling a hole with the corresponding depth at first, then a ground drilling cylinder is used for accurate sampling, linkage between the structures can be utilized in the whole process, and the sampling efficiency is improved. And the soil of different depths is subjected to blanking receiving and conversion, so that subsequent distinguishing of workers is facilitated, the accuracy of soil information is ensured, and the current use requirement is met.

Description

Technical Field

[0001] The invention relates to the technical field of soil sampling, in particular to a soil sampling device for land resource planning. Background Art

[0002] Land planning refers to the long-term arrangement for the rational use of land in accordance with the prospects and needs of economic development. The basis of planning is the distribution and allocation of existing natural resources, technical resources and human resources, so as to ensure that the land is fully and effectively utilized without wasting it due to human factors. In the process of natural resource soil exploration, sampling work is required. The sampling equipment currently used obtains shallow soil samples and lacks natural information. At the same time, it is mostly manually operated, which is time-consuming and labor-intensive. Patent documents have been made to improve this.

[0003] For example, Chinese patent CN117949238A discloses a soil sampling device for land and natural resources planning, comprising a vehicle plate, a push rod, moving wheels, an opening, a sample collection box, a horizontal bracket, a slide, and a sampler. The push rod is fixedly connected to the top rear of the vehicle plate, four moving wheels are equidistantly connected to the bottom of the vehicle plate, the opening is opened at the front end of the vehicle plate, the sample collection box is slidably connected to the rear of the vehicle plate, two horizontal brackets are equidistantly fixedly connected to both sides of the top of the vehicle plate, the slide is opened on the inner side of the horizontal bracket, and the sampler is slidably connected between the two slides. The present invention designs a device structure for the sampling process during natural resource land survey work, so that the samples obtained are at a certain depth from the ground surface and the information obtained is richer. At the same time, a mechanical structure is adopted to reduce the use of manpower and improve sampling efficiency.

[0004] Although the equipment in the above document can use the ground drilling tube to take out the soil and discharge all the soil in the tube for the convenience of collection by the staff, it still has obvious defects in actual use, such as: When the ground drilling tube is used for sampling, soils of multiple different depths and layers are usually stored in the tube. When the material is taken, the soil in the tube will be mixed together after being discharged, resulting in the inability to collect soil at the corresponding depth for information collection, resulting in inaccurate collected information; Therefore, a soil sampling device for land resource planning that can improve the accuracy of soil collection is now designed to solve such defects. Summary of the invention

[0005] In view of the deficiencies of the prior art, the present invention provides a soil sampling device for land resource planning, which solves the problem that the prior soil sampling device easily causes sample mixing.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a soil sampling device for land resource planning, including a drilling sampling mechanism, the drilling sampling mechanism includes a stable base plate, a material switching mechanism is installed on the top of the stable base plate, and the material switching mechanism includes a supporting slide plate.

[0007] Preferably, the top of the stable bottom plate is fixedly connected to a guide sliding top frame through a bracket, guide sliding seats are slidably installed on both sides of the inner cavity of the guide sliding top frame, a lowering opening for use with the guide sliding seat is opened on the top of the guide sliding top frame, an auger is fixedly connected to the bottom of the guide sliding seat on the right side, and a circular through-opening is opened on the top of the stable bottom plate.

[0008] Preferably, the bottom of the guide slide seat on the left side is fixedly connected to a drilling cylinder, and side sliding grooves are opened on both sides of the surface of the drilling cylinder. A strip plate is slidably installed on the inner side of the side sliding groove. A pushing rod is fixedly connected to the bottom of the strip plate and located on the inner side of the drilling cylinder, and the bottom end of the pushing rod is fixedly connected to a pushing plate through a fixed block.

[0009] Preferably, the rear part of the guide sliding top frame is fixedly connected to a cylinder via a fixing plate, the top end of the cylinder is fixedly connected to a motor via a bracket, the output shaft of the motor is fixedly connected to a polygonal rotating rod via a coupling, polygonal inner grooves are provided on opposite sides of the two guide sliding seats, a rectangular groove is provided at the bottom of the inner cavity of the polygonal inner groove, a sealing plate is provided on the inner side of the rectangular groove, a lifting rod is fixedly connected to the front and rear sides of the top of the sealing plate, and the top end of the lifting rod passes through the polygonal inner groove and extends to the upper part of the guide sliding seat, and a first spring is provided on the surface of the lifting rod and located on the upper part of the guide sliding seat.

[0010] Preferably, an inner groove slide is slidably installed on the left side of the guide sliding top frame, and a vertical sliding rod is slidably installed on the inner side of the inner groove slide, and the bottom ends of the vertical sliding rod are fixedly connected to a bearing sleeve and a sliding pressure plate through a fixing plate, respectively, and the bearing sleeve is rotatably installed on the surface of the drilling tube, and an inclined pressure plate is slidably installed on the inner side of the sliding pressure plate, and the top of the inclined pressure plate is fixedly connected to a U-shaped frame, and the front and rear sides of the top of the U-shaped frame are slidably installed with vertical push rods used in conjunction with the strip plates through openings, and the bottom of the inner side of the inclined pressure plate is fixedly connected to a second spring, and the top of the second spring is fixedly connected to the sliding pressure plate.

[0011] Preferably, the front and rear sides of the top of the guide sliding top frame are fixedly connected to a double arc abutment plate used in conjunction with the lifting rod through a fixing block, and the right side of the top of the stable bottom plate is fixedly connected to a protective frame used in conjunction with the auger through a fixing plate.

[0012] Preferably, the rear side of the top of the stable base plate is fixedly connected to a retractable frame via a bracket, an arc-shaped tooth plate is slidably installed on the inner side of the retractable frame, a third spring is fixedly connected between the arc-shaped tooth plate and the inner wall of the retractable frame, and rectangular sliding grooves are provided on the front and rear sides of the top of the stable base plate.

[0013] Preferably, a supporting slide is slidably installed between the inner sides of the two rectangular slide grooves, and the top of the supporting slide is rotatably connected to an annular gear frame used in conjunction with the circular through-opening through an opening, and a load-bearing rod is slidably installed on the surface of the annular gear frame through an opening, and a plurality of load-bearing rods are provided, one end of the load-bearing rod located on the inner side of the annular gear frame is fixedly connected to a material box used in conjunction with the drilling tube, and one end of the load-bearing rod located on the outside of the annular gear frame is fixedly connected to a pull plate used in conjunction with the inclined pressure plate, and a fourth spring is provided on the surface of the load-bearing rod and located inside the annular gear frame.

[0014] Preferably, a guide rail groove is provided at the bottom of the load-bearing rod, and a curved guide rail frame used in conjunction with the guide rail groove is fixedly connected to the lower portion of the inner side of the annular gear frame through a fixing block, and the curved guide rail frame is located inside a plurality of guide rail grooves. Beneficial Effects

[0015] The present invention provides a soil sampling device for land resource planning. Compared with the existing technology, it has the following beneficial effects: (1) The soil sampling device for land resource planning uses a drilling sampling mechanism and a material switching mechanism in combination. The arrangement of these structures can first use an auger to drill a hole of corresponding depth, and then use the ground drill to accurately sample. In addition, the entire process can also utilize the linkage between the structures to carry out material feeding, acceptance and conversion of soil at different depths, which facilitates the subsequent staff to distinguish, ensures the accuracy of soil information, and satisfies current use.

[0016] (2) The soil sampling device for land resource planning is equipped with a ring-shaped tooth frame rotatably installed on the top of the supporting slide plate, and a plurality of material boxes are installed on the surface of the ring-shaped tooth frame by using a load-bearing rod. The device is used in conjunction with an arc-shaped tooth plate and a curved guide rail frame. When the supporting slide plate is pulled, the arrangement of these structures can drive the ring-shaped tooth frame and the arc-shaped tooth plate to mesh and rotate so that the plurality of material boxes can change positions, so that the soil of different depths can fall into different material boxes each time the drilling tube discharges the material, and the soil will not be mixed, thereby improving the accuracy of soil information collection.

[0017] (3) The soil sampling device for land resource planning is equipped with a vertical slide bar installed inside the guide slide top frame by using an inner groove slide plate, and an inclined pressure plate is installed at the bottom of the vertical slide bar by using a sliding pressure plate, and is used in conjunction with a vertical push rod. The arrangement of these structures enables the inclined pressure plate to squeeze the pull plate when the drilling tube descends, so that the material box on the left side can move to the left and retract without conflicting with the material box. After the drilling tube rises again, the material box can be released and moved to the bottom of the drilling tube. Finally, the vertical push rod is used to press the strip plate to discharge the soil and accurately drop it into the material box, without the need for workers to perform cumbersome material collection procedures.

[0018] (4) The soil sampling device for land resource planning has a rectangular groove inside the polygonal inner groove and a sealing plate installed therein, and uses a lifting rod in combination with a double arc stop plate. The arrangement of these structures enables the sealing plate to close the polygonal inner groove when the guide slide seat descends, thereby ensuring the fixity of the connection between the polygonal rotating rod and the guide slide seat, ensuring greater stability during subsequent rotation and lifting, and improving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a rear view of the structure of the present invention; Figure 3 It is a schematic diagram of the structure of the auger, cylinder and motor of the present invention; Figure 4 It is a schematic diagram of the motor and the polygonal rotating rod structure of the present invention; Figure 5 It is a schematic diagram of the rectangular groove, lifting rod and blocking plate structure of the present invention; Figure 6 It is a cross-sectional view of the earth-drilling tube structure of the present invention; Figure 7 It is a schematic diagram of the inclined pressure plate, U-shaped frame and vertical support rod structure of the present invention; Figure 8 is a cross-sectional view of the retractable frame structure of the present invention; Fig. 9 It is a schematic diagram of the material switching mechanism structure of the present invention; Fig.10 It is a schematic diagram of the material holding box, the pull plate and the fourth spring structure of the present invention; Fig.11 It is a schematic diagram of the curved guide rail frame structure of the present invention.

[0020] In the figure: 1, drilling sampling mechanism; 2, material switching mechanism; 101, stable bottom plate; 102, guide sliding top frame; 103, lower opening; 104, guide sliding seat; 105, auger; 106, ground drilling tube; 107, push plate; 108, side sliding slot; 109, cylinder; 110, motor; 111, polygonal rotating rod; 112, polygonal inner groove; 113, rectangular groove; 114, lifting rod; 115, blocking plate; 116, first spring; 117, inner groove slide plate; 118, vertical slide rod; 119, bearing sleeve; 120, Sliding plate; 121, inclined pressure plate; 122, U-shaped frame; 123, vertical support rod; 124, second spring; 125, round hole; 126, double arc support plate; 127, protection frame; 128, retracting frame; 129, arc tooth plate; 130, third spring; 131, rectangular slide groove; 132, push rod; 133, strip plate; 201, supporting slide plate; 202, annular tooth frame; 203, load-bearing rod; 204, material box; 205, pull plate; 206, fourth spring; 207, curved guide frame; 208, guide groove. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] See also Figure 1-11 The present invention provides a technical solution: a soil sampling device for land resource planning, comprising a drilling sampling mechanism 1, the drilling sampling mechanism 1 comprises a stable bottom plate 101, a material switching mechanism 2 is installed on the top of the stable bottom plate 101, and the material switching mechanism 2 comprises a supporting slide plate 201.

[0023] Please refer to Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8, showing the overall structure of the drilling sampling mechanism 1, the top of the stable bottom plate 101 is fixedly connected to the guide sliding top frame 102 through a bracket, both sides of the inner cavity of the guide sliding top frame 102 are slidably installed with guide sliding seats 104, the top of the guide sliding top frame 102 is provided with a lowering port 103 used in conjunction with the guide sliding seat 104, the bottom of the right guide sliding seat 104 is fixedly connected with an auger 105, the top of the stable bottom plate 101 is provided with a round through hole 125, the bottom of the left guide sliding seat 104 is fixedly connected with a drilling tube 106, both sides of the surface of the drilling tube 106 are provided with side sliding grooves 108, the inner side of the side sliding grooves 108 is slidably installed with a strip plate 133, and the bottom of the strip plate 133 and the inner side of the drilling tube 106 are fixedly connected with a push rod 13 2. The bottom end of the push rod 132 is fixedly connected to the push plate 107 through a fixed block. The push plate 107 fits the inner wall of the drilling tube 106. The rear part of the guide slide top frame 102 is fixedly connected to the cylinder 109 through a fixed plate. The top of the cylinder 109 is fixedly connected to the motor 110 through a bracket. The motor 110 is a servo motor. The output shaft of the motor 110 is fixedly connected to the polygonal rotating rod 111 through a coupling. The two guide slide seats 104 have polygonal inner grooves 112 on opposite sides. The bottom of the inner cavity of the polygonal inner groove 112 is provided with a rectangular groove 113. A blocking plate 115 is provided on the inner side of the rectangular groove 113. The front and rear sides of the top of the blocking plate 115 are fixedly connected to the lifting rod 114, and the top of the lifting rod 114 passes through the polygonal inner groove. 112 and extends to the upper part of the guide slide seat 104, the surface of the lifting rod 114 and the upper part of the guide slide seat 104 are sleeved with a first spring 116, the left side of the guide slide top frame 102 is slidably installed with an inner groove slide plate 117, the inner side of the inner groove slide plate 117 is slidably installed with a vertical slide rod 118, the bottom end of the vertical slide rod 118 is fixedly connected with a bearing sleeve 119 and a sliding plate 120 through a fixing plate, the bearing sleeve 119 is rotatably installed on the surface of the drilling tube 106, the inner side of the sliding plate 120 is slidably installed with an inclined pressure plate 121, the top of the inclined pressure plate 121 is fixedly connected with a U-shaped frame 122, the front and rear sides of the top of the U-shaped frame 122 are slidably installed with a vertical push rod 123 used in conjunction with the strip plate 133 through an opening, A second spring 124 is fixedly connected to the bottom of the inner side of the surface pressure plate 121, and the top of the second spring 124 is fixedly connected to the sliding pressure plate 120, the front and rear sides of the top of the guide sliding top frame 102 are fixedly connected to the double arc abutment plate 126 used in conjunction with the lifting rod 114 through a fixed block, the right side of the top of the stable bottom plate 101 is fixedly connected to the protective frame 127 used in conjunction with the spiral drill 105 through a fixed plate, the rear side of the top of the stable bottom plate 101 is fixedly connected to the retraction frame 128 through a bracket, the inner side of the retraction frame 128 is slidably installed with an arc tooth plate 129, the arc tooth plate 129 and the inner wall of the retraction frame 128 are fixedly connected with a third spring 130, and the front and rear sides of the top of the stable bottom plate 101 are provided with rectangular sliding grooves 131.

[0024] When in use, the equipment is first transported to the designated position, and then the guide slide seat 104 on the right is pushed to drive the auger 105 to move to the middle of the guide slide top frame 102. When the guide slide seat 104 moves to the middle, the lifting rod 114 is squeezed by the double arc abutment plate 126 to push the blocking plate 115 down to open the polygonal inner groove 112. At the same time, the polygonal rotating rod 111 is docked with the inside of the polygonal inner groove 112. Then the cylinder 109 is started to push the motor 110 and the guide slide seat 104 to descend together. After the guide slide seat 104 descends, the lifting rod 114 is separated from the double arc abutment plate 126, so that the blocking plate 115 and the lifting rod 114 rise under the elastic force of the first spring 116, so that the blocking plate 115 closes the polygonal inner groove 112 and limits the polygonal rotating rod 111. , and then start the motor 110 to use the polygonal rotating rod 111 to drive the guide slide 104 and the auger 105 to rotate synchronously. As the cylinder 109 continues to descend, the auger 105 passes through the circular hole 125 to drill holes in the ground. After drilling to the specified depth, it stops descending and starts the cylinder 109 to drive the guide slide 104 and the auger 105 to rise. After the guide slide 104 rises to the inside of the guide slide top frame 102, the lifting rod 114 will be squeezed by the double arc abutment plate 126 again to push the sealing plate 115 to descend and open the polygonal inner groove 112. Then push the guide slide 104 to drive the auger 105 to separate from the polygonal rotating rod 111 and move to the rightmost side of the guide slide top frame 102, and the auger 105 enters the protection frame 127 for internal protection.

[0025] Please refer to Fig. 9 , Fig.10 and Fig.11 , showing the overall structure of the material switching mechanism 2, a supporting slide 201 is slidably installed between the inner sides of the two rectangular slide grooves 131, and the top of the supporting slide 201 is rotatably connected to an annular gear frame 202 used in conjunction with the circular opening 125 through an opening, and the arc-shaped gear plate 129 and the annular gear frame 202 are pre-set, and each pull and rotation can just make the annular gear frame 202 rotate the same distance, and the surface of the annular gear frame 202 is slidably installed with a load-bearing rod 203 through an opening, and a plurality of load-bearing rods 203 are provided, and the load-bearing rods 203 are located inside the annular gear frame 202. One end of the side is fixedly connected to a material box 204 used in conjunction with the drilling tube 106, and the end of the load-bearing rod 203 located outside the annular gear frame 202 is fixedly connected to a pull plate 205 used in conjunction with the inclined pressure plate 121. The surface of the load-bearing rod 203 and the inside of the annular gear frame 202 are sleeved with a fourth spring 206, and a guide rail groove 208 is opened at the bottom of the load-bearing rod 203. The lower part of the inner side of the annular gear frame 202 is fixedly connected to a curved guide rail frame 207 used in conjunction with the guide rail groove 208 through a fixed block, and the curved guide rail frame 207 is located inside several guide rail grooves 208.

[0026] The guide slide seat 104 on the left is pushed to dock with the polygonal rotating rod 111, and at the same time, the supporting slide plate 201 is pushed to move right under the limit of the moment slide groove 131. After the supporting slide plate 201 moves to the limit position, it is aligned with the circular hole 125, and then the cylinder 109 is started to push the guide slide seat 104 and the drilling tube 106 to descend. When the drilling tube 106 descends, the bearing sleeve 119 will allow the sliding plate 120 to press the inclined pressure plate 121 to descend under the limit of the vertical sliding rod 118. When the inclined pressure plate 121 descends, it will squeeze the leftmost resisting plate 205. After the resisting plate 205 is squeezed, it will push the material box 204 to move left and not engage with the drilling tube 1 06 is offset, after the inclined pressure plate 121 drops to the bottom, as the drilling tube 106 continues to drop, the sliding pressure plate 120 continues to drop under the sliding of the inclined pressure plate 121 and compresses the second spring 124. At this time, the motor 110 is started to drive the drilling tube 106 to rotate. After the drilling tube 106 rotates into the hole, the soil is cut into the inside of the drilling tube 106. After the soil enters the inside of the drilling tube 106, it pushes the push plate 107 and the strip plate 133 to rise. At this time, the motor 110 is turned off to restore the rotation angle of the drilling tube 106 to the initial state, and then the cylinder 109 drives the drilling tube 106 to rise, and the sliding pressure plate 120 It will first rise to the top of the inclined pressure plate 121, and because the vertical push rod 123 is a sliding connection, the vertical push rod 123 is pushed up by the strip plate 133, driving the cylinder 109 to continue to rise, and the drilling tube 106 will drive the inclined pressure plate 121 to rise and separate from the pull plate 205. At this time, the drilling tube 106 rises to the top and the material box 204 moves to the bottom of the drilling tube 106 through the fourth spring 206. As the drilling tube 106 continues to rise, the top of the vertical push rod 123 abuts against the bottom of the guide sliding top frame 102, and at the same time, the vertical push rod 123 squeezes the strip plate 133 to push the pushing plate 107 to discharge the soil, and the soil falls on The soil at this depth inside the material box 204 is taken out, and then the supporting slide 201 is pushed back to the left side, and then the auger 105 is re-connected with the polygonal rotating rod 111 to drill a deeper hole again. When the supporting slide 201 is pulled to the middle again, the annular gear frame 202 will mesh with the arc-shaped gear plate 129 and drive the annular gear frame 202 and several material boxes 204 to rotate. When the material box 204 rotates, the curved guide rail frame 207 is connected with the guide rail groove 208 and drives the previous material box 204 to rotate to other positions, and the empty material box 204 moves to the far left to prepare for the next material receiving.

[0027] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims

1. A soil sampling device for land resource planning, comprising a drilling sampling mechanism (1), characterized in that: The drilling sampling mechanism (1) comprises a stable bottom plate (101), a material holding switching mechanism (2) is installed on the top of the stable bottom plate (101), and the material holding switching mechanism (2) comprises a supporting slide plate (201).

2. A soil sampling device for land resource planning according to claim 1, characterized in that: The top of the stable bottom plate (101) is fixedly connected to a guide sliding top frame (102) via a bracket, guide sliding seats (104) are slidably mounted on both sides of the inner cavity of the guide sliding top frame (102), a lowering opening (103) for use with the guide sliding seat (104) is provided on the top of the guide sliding top frame (102), a spiral drill (105) is fixedly connected to the bottom of the right guide sliding seat (104), and a round through-opening (125) is provided on the top of the stable bottom plate (101).

3. A soil sampling device for land resource planning according to claim 2, characterized in that: The bottom of the guide slide seat (104) on the left side is fixedly connected to a drilling tube (106), and side sliding grooves (108) are provided on both sides of the surface of the drilling tube (106). A strip plate (133) is slidably installed inside the side sliding groove (108), and a push rod (132) is fixedly connected to the bottom of the strip plate (133) and located inside the drilling tube (106), and the bottom end of the push rod (132) is fixedly connected to a push plate (107) via a fixed block.

4. A soil sampling device for land resource planning according to claim 2, characterized in that: The rear part of the guide slide top frame (102) is fixedly connected to a cylinder (109) via a fixing plate, the top of the cylinder (109) is fixedly connected to a motor (110) via a bracket, the output shaft of the motor (110) is fixedly connected to a polygonal rotating rod (111) via a coupling, and a polygonal inner groove (112) is provided on opposite sides of the two guide slide seats (104), a rectangular groove (113) is provided at the bottom of the inner cavity of the polygonal inner groove (112), a blocking plate (115) is provided on the inner side of the rectangular groove (113), the front and rear sides of the top of the blocking plate (115) are fixedly connected to a lifting rod (114), and the top of the lifting rod (114) passes through the polygonal inner groove (112) and extends to the upper part of the guide slide seat (104), and a first spring (116) is sleeved on the surface of the lifting rod (114) and located at the upper part of the guide slide seat (104).

5. A soil sampling device for land resource planning according to claim 2, characterized in that: An inner groove slide plate (117) is slidably installed on the left side inside the guide sliding top frame (102), and a vertical slide rod (118) is slidably installed on the inner side of the inner groove slide plate (117). The bottom ends of the vertical slide rod (118) are respectively fixedly connected to a bearing sleeve (119) and a sliding pressure plate (120) through a fixing plate. The bearing sleeve (119) is rotatably installed on the surface of the drilling tube (106). An inclined pressure plate (121) is slidably installed on the inner side of the sliding pressure plate (120). The top of the inclined pressure plate (121) is fixedly connected to a U-shaped frame (122). The front and rear sides of the top of the U-shaped frame (122) are slidably installed with a vertical support rod (123) used in conjunction with the strip plate (133) through an opening. The bottom of the inner side of the inclined pressure plate (121) is fixedly connected to a second spring (124), and the top of the second spring (124) is fixedly connected to the sliding pressure plate (120).

6. A soil sampling device for land resource planning according to claim 4, characterized in that: The front and rear sides of the top of the guide sliding top frame (102) are fixedly connected to a double arc abutment plate (126) used in conjunction with the lifting rod (114) via a fixing block, and the right side of the top of the stable bottom plate (101) is fixedly connected to a protective frame (127) used in conjunction with the auger (105) via a fixing plate.

7. A soil sampling device for land resource planning according to claim 2, characterized in that: A retractable frame (128) is fixedly connected to the rear side of the top of the stable bottom plate (101) via a bracket, an arc-shaped toothed plate (129) is slidably mounted on the inner side of the retractable frame (128), a third spring (130) is fixedly connected between the arc-shaped toothed plate (129) and the inner wall of the retractable frame (128), and rectangular sliding grooves (131) are provided on the front and rear sides of the top of the stable bottom plate (101).

8. The soil sampling device for land resource planning according to claim 7, characterized in that: A supporting slide plate (201) is slidably mounted between the inner sides of the two rectangular slide grooves (131); the top of the supporting slide plate (201) is rotatably connected to an annular tooth frame (202) used in conjunction with the circular opening (125) through an opening; a load-bearing rod (203) is slidably mounted on the surface of the annular tooth frame (202) through an opening; and a plurality of load-bearing rods (203) are provided; one end of the load-bearing rod (203) located inside the annular tooth frame (202) is fixedly connected to a material box (204) used in conjunction with the earth-drilling tube (106); one end of the load-bearing rod (203) located outside the annular tooth frame (202) is fixedly connected to a pull plate (205) used in conjunction with the inclined pressure plate (121); and a fourth spring (206) is sleeved on the surface of the load-bearing rod (203) and located inside the annular tooth frame (202).

9. A soil sampling device for land resource planning according to claim 8, characterized in that: A guide rail groove (208) is provided at the bottom of the load-bearing rod (203), and a curved guide rail frame (207) used in conjunction with the guide rail groove (208) is fixedly connected to the lower portion of the inner side of the annular gear frame (202) via a fixing block, and the curved guide rail frame (207) is located inside a plurality of guide rail grooves (208).

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