Land survey sampling device

Abstract

The utility model relates to the technical field of soil sampling, and discloses a land investigation sampling device which comprises a sampling drill barrel and a plurality of drill pipe assemblies connected to the upper end of the sampling drill barrel, the upper ends of the drill pipe assemblies are fixedly connected with rotating handles, and the outer sides of the drill pipe assemblies are sleeved with heavy hammer assemblies. A sample pushing assembly is arranged in the sampling drill barrel, the drill pipe assembly and the heavy hammer assembly in a penetrating mode, the sampling drill barrel comprises a drill barrel body, and a spiral groove is formed in the outer side of the drill barrel body. According to the soil sampler, the sampling drill barrel can enter soil to sample the soil by rotating the rotary handle; when the rotating handle is difficult to rotate by hand, the heavy hammer assembly can be lifted and freely falls down, and the drilling pipe assembly is hammered by the heavy hammer assembly, so that the sampling drilling barrel can enter the soil, and the soil is sampled; by rotating the sample pushing assembly, the soil sample can be pushed out of the drill barrel body, and the shape and the position of the soil sample are not damaged.

Description

Technical Field

[0001] This utility model relates to the field of soil sampling technology, specifically a land survey sampling device. Background Technology

[0002] The main purpose of land status survey is to understand the actual situation of land resources and provide basic data for the rational use, planning and management of land. Through sampling and testing, we can understand the content and proportion of various nutrients in the soil, as well as key indicators such as soil pH and permeability. This requires the use of sampling equipment.

[0003] Chinese patent discloses a manual soil sampler (authorization announcement number CN219348232U). After the sampling tube is inserted into the soil for sampling, the staff can hold the knob to rotate it. At this time, the connecting rod will move downward in the long rod as the knob rotates, and can drive the bulldozer to push the soil collected in the sampling tube downward into the sampling tube. Compared with traditional samplers, it makes it easier and less laborious to remove the collected soil. However, it is not convenient to sample at the required depth and the sampling is inconvenient. Utility Model Content

[0004] The purpose of this invention is to provide a land survey sampling device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A land survey sampling device includes a sampling drill cylinder and several drill pipe assemblies connected to the upper end of the sampling drill cylinder. A rotating handle is fixedly connected to the upper end of each drill pipe assembly. A counterweight assembly is sleeved on the outside of each drill pipe assembly. A pusher assembly is provided through the interior of the sampling drill cylinder, the drill pipe assemblies, and the counterweight assembly. The sampling drill cylinder includes a drill cylinder body. A spiral groove is formed on the outside of the drill cylinder body, and an opening groove is formed at the lower end of the front side of the drill cylinder body. A connector pipe is fixedly connected to the upper end of the drill cylinder body. An internal threaded sleeve is connected to the interior of the junction of the drill cylinder body and the connector pipe. A first square tube head is connected to the upper end of the connector pipe. A first spring post is installed at both the front and rear ends of the first square tube head.

[0007] As a further embodiment of this utility model: the sample pushing assembly includes a sample pushing plate, an external threaded rod is fixedly connected to the upper end of the sample pushing plate, a plurality of extension rods are installed on the upper end of the external threaded rod, a lever head is installed on the upper end of the extension rod, and a through lever hole is opened on the inner side of the lever head.

[0008] As a further embodiment of this utility model: the sample pusher is located inside the drill barrel body, the external threaded rod is engaged with the inner side of the internal threaded sleeve, and the extension rod is inserted through the inner side of the drill pipe assembly.

[0009] As a further embodiment of this utility model: the drill pipe assembly includes a drill pipe, the outer surface of which is uniformly provided with scale lines, and a second square tube head is connected to the upper end of the drill pipe. The front and rear ends of the second square tube head are both equipped with second square tube heads. The interior of the lower end of the drill pipe matches the second square tube head, and a set of grooves matching the second spring post are opened in the interior of the lower end of the drill pipe.

[0010] As a further embodiment of this utility model: the hammer assembly includes a first hammer plate and a second hammer plate that matches the first hammer plate. The first hammer plate and the second hammer plate are both provided with a sliding groove hole at their center positions. Two sets of mounting holes are provided on the front and rear ends of the first hammer plate and the second hammer plate near the sliding groove hole. A pin is provided through the inner side of each set of mounting holes.

[0011] As a further embodiment of this utility model: the two sliding groove holes at the center of the first hammer and the second hammer are joined together to form a circular hole, the inner diameter of which is larger than the outer diameter of the drill pipe and smaller than the outer diameter of the limiting plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] This invention allows the sampling drill to enter the soil by rotating the handle, thus sampling the soil. When it is difficult to rotate the handle by hand, the hammer assembly can be raised and allowed to fall freely. The hammer assembly strikes the drill pipe assembly, allowing the sampling drill to enter the soil and achieve soil sampling. By rotating the pusher assembly, the soil sample can be pushed out of the drill pipe body without damaging the shape and position of the soil sample. Attached Figure Description

[0014] Figure 1 A schematic diagram of a land survey sampling device;

[0015] Figure 2 This is a schematic diagram of the sampling drill barrel in a land survey sampling device.

[0016] Figure 3 This is a partial cross-sectional schematic diagram of the sampling drill barrel in a land survey sampling device;

[0017] Figure 4 This is a partial structural diagram of a sampling component in a land survey sampling device;

[0018] Figure 5 This is a partially exploded structural diagram of the drill pipe assembly in a land survey sampling device.

[0019] Figure 6 This is a schematic diagram of the exploded structure of a weight assembly in a land survey sampling device.

[0020] In the diagram: 1. Sampling drill barrel; 11. Drill barrel body; 12. Connector pipe; 13. Spiral groove; 14. Opening groove; 15. Internal threaded sleeve; 16. First square tube head; 17. First spring post; 2. Drill pipe assembly; 21. Drill pipe; 22. Second spring post; 23. Second square tube head; 24. Limiting plate; 25. Scale line; 3. Hammer assembly; 31. First hammer plate; 32. Second hammer plate; 33. Mounting hole; 34. Pin shaft; 35. Sliding groove hole; 4. Rotating handle; 5. Sample pushing assembly; 51. Sample pushing plate; 52. External threaded rod; 53. Assist hole; 54. Assist head; 55. Extension rod. Detailed Implementation

[0021] Please see Figures 1-6 In this embodiment of the utility model, a land survey sampling device includes a sampling drill cylinder 1 and several drill pipe assemblies 2 connected to the upper end of the sampling drill cylinder 1. A rotating handle 4 is fixedly connected to the upper end of the drill pipe assembly 2, and a hammer assembly 3 is sleeved on the outside of the drill pipe assembly 2. A pusher assembly 5 is provided through the interior of the sampling drill cylinder 1, the drill pipe assembly 2, and the hammer assembly 3. When the sampling drill cylinder 1 is inserted into the soil to be sampled, the user holds and rotates the rotating handle 4 with both hands to allow the sampling drill cylinder 1 to enter the soil and sample the soil. When it is difficult to rotate the rotating handle 4 by hand, the hammer assembly 3 is lifted and allowed to fall freely. The hammer assembly 3 strikes the drill pipe assembly 2, allowing the sampling drill cylinder 1 to enter the soil and achieve soil sampling.

[0022] exist Figure 1 , Figure 2 and Figure 3 In the process, the sampling drill barrel 1 includes a drill barrel body 11. The outer side of the drill barrel body 11 is provided with a spiral groove 13, and an opening groove 14 is provided at the lower front end of the drill barrel body 11. When the drill barrel body 11 rotates, the soil is cut and discharged through the spiral groove 13, so that the drill barrel body 11 drills downward, and the soil enters into the drill barrel body 11 through the opening groove 14. A connector pipe 12 is fixedly connected to the upper end of the drill barrel body 11. An internal threaded sleeve 15 is connected to the inside of the junction of the drill barrel body 11 and the connector pipe 12. The upper end of the connector pipe 12 is connected to a first square tube head 16. A first spring post 17 is installed at both the front and rear ends of the first square tube head 16. The first square tube head 16 is embedded in the drill pipe assembly 2, and the first spring post 17 is locked in the groove in the drill pipe assembly 2. The sampling drill barrel 1 and the drill pipe assembly 2 can be installed together, and the drill pipe assembly 2 can be pulled out from the sampling drill barrel 1 by force.

[0023] exist Figure 1 and Figure 4 In the process, the sample pushing assembly 5 includes a sample pushing disk 51, with an external threaded rod 52 fixedly connected to the upper end of the sample pushing disk 51. Several extension rods 55 are installed on the upper end of the external threaded rod 52, and a lever head 54 is installed on the upper end of the extension rod 55. A through lever hole 53 is opened on the inner side of the lever head 54. The sample pushing disk 51 is located inside the drill barrel body 11. The external threaded rod 52 is connected to the inner side of the internal threaded sleeve 15. The extension rod 55 passes through the inner side of the drill pipe assembly 2. When the drill barrel body 11 is full of soil sample, a lever is inserted into the lever hole 53. By rotating the lever head 54 through the lever, the lever head 54, the external threaded rod 52 and the sample pushing disk 51 rotate together. The sample pushing disk 51 moves downward inside the drill barrel body 11, thereby pushing the soil sample inside the drill barrel body 11 and pushing the soil sample out without destroying the shape and position of the soil sample.

[0024] exist Figure 1 and Figure 5 In the drill pipe assembly 2, a drill pipe 21 is included. The outer surface of the drill pipe 21 is uniformly marked with graduation lines 25, which determine the depth to which the sampling drill pipe 1 enters the soil, thus meeting the needs of soil sampling. A second square tube head 23 is connected to the upper end of the drill pipe 21. The front and rear ends of the second square tube head 23 are both fitted with second square tube heads 23. The interior of the lower end of the drill pipe 21 matches the second square tube head 23, and a set of recesses matching the second spring post 22 is formed inside the lower end of the drill pipe 21. When the upper end of one drill pipe 21 is inserted into the lower end of another drill pipe 21, the second spring post 22 is engaged in the groove, which connects the two drill pipe assemblies 2 together to meet the sampling depth requirements. When the counterweight assembly 3 is needed, a limiting plate 24 needs to be installed between the two drill pipes 21. When the lower drill pipe 21 needs to be fully inserted into the soil, the limiting plate 24 needs to be removed. Therefore, the limiting plate 24 should be installed in a suitable position on the drill pipe 21 as needed.

[0025] exist Figure 1 and Figure 6 In the process, the hammer assembly 3 includes a first hammer 31 and a second hammer 32 that matches the first hammer 31. The first hammer 31 and the second hammer 32 are both provided with a sliding groove hole 35 at their center positions. Two sets of mounting holes 33 are provided on the first hammer 31 and the second hammer 32 near the front and rear ends of the sliding groove hole 35. A pin 34 is provided through the inner side of each set of mounting holes 33. The first hammer 31 and the second hammer 32 can be spliced ​​into a whole structure through the pin 34. The two sliding groove holes 35 at the center of the first hammer 31 and the second hammer 32 are spliced ​​into a circular hole. The inner diameter of the circular hole is larger than the outer diameter of the drill pipe 21 and smaller than the outer diameter of the limiting plate 24, so that the hammer assembly 3 can fall freely along the drill pipe 21 and hit the limiting plate 24, so that the sampling drill 1 enters the soil.

[0026] The working principle of this instrument is as follows: When soil sampling is required, firstly, the lever head 54 is rotated by the lever rod, so that the lever head 54, the external thread rod 52 and the sample pusher 51 rotate together. The sample pusher 51 moves upward inside the drill body 11 and is in close contact with the upper end of the drill body 11.

[0027] Then, the opening slot 14 in the sampling drill tube 1 is inserted into the soil. The user holds and rotates the rotating handle 4 with both hands. The soil is cut and discharged through the spiral groove 13, so that the drill tube body 11 drills downward. Soil enters the drill tube body 11 from the opening slot 14, thus achieving soil sampling. When it is difficult to rotate the rotating handle 4 by hand, a limiting plate 24 is installed between the two drill tubes 21. Then, the hammer assembly 3 is installed on the drill tube 21. The hammer assembly 3 is lifted and lowered. The hammer assembly 3 falls freely and strikes the drill tube assembly 2, which drives the sampling drill tube 1 into the soil, thus achieving soil sampling.

[0028] After the sampling drill 1 is removed from the soil, the pushing component 5 is rotated in the opposite direction. The pushing disk 51 moves downward inside the drill body 11, thereby pushing the soil sample inside the drill body 11 and pushing the soil sample out.

[0029] The above-described utility models are merely preferred embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A land survey sampling device, comprising a sampling drill cylinder (1) and a plurality of drill pipe assemblies (2) connected to the upper end of the sampling drill cylinder (1), wherein a rotating handle (4) is fixedly connected to the upper end of the drill pipe assembly (2), characterized in that, The outside of the drill pipe assembly (2) is fitted with a counterweight assembly (3). The inside of the sampling drill barrel (1), the drill pipe assembly (2) and the counterweight assembly (3) is connected by a pusher assembly (5). The sampling drill barrel (1) includes a drill barrel body (11). The outside of the drill barrel body (11) is provided with a spiral groove (13), and an opening groove (14) is provided at the lower end of the front side of the drill barrel body (11). The upper end of the drill barrel body (11) is fixedly connected with a connector pipe (12). The inside of the junction of the drill barrel body (11) and the connector pipe (12) is connected with an internal thread sleeve (15). The upper end of the connector pipe (12) is connected with a first square tube head (16). The front and rear ends of the first square tube head (16) are both equipped with first spring columns (17).

2. The land survey sampling device according to claim 1, characterized in that, The sample pushing assembly (5) includes a sample pushing plate (51), and an external threaded rod (52) is fixedly connected to the upper end of the sample pushing plate (51). Several extension rods (55) are installed on the upper end of the external threaded rod (52), and a lever head (54) is installed on the upper end of the extension rod (55). A through lever hole (53) is opened on the inner side of the lever head (54).

3. A land survey sampling device according to claim 2, characterized in that, The pusher plate (51) is located inside the drill barrel body (11), the external threaded rod (52) is engaged with the inner side of the internal threaded sleeve (15), and the extension rod (55) is engaged with the inner side of the drill pipe assembly (2).

4. A land survey sampling device according to claim 1, characterized in that, The drill pipe assembly (2) includes a drill pipe (21), the outer surface of which is uniformly provided with scale lines (25), and a second square tube head (23) is connected to the upper end of the drill pipe (21). The front and rear ends of the second square tube head (23) are both equipped with second square tube heads (23). The interior of the lower end of the drill pipe (21) matches the second square tube head (23), and a set of grooves matching the second spring post (22) is opened in the interior of the lower end of the drill pipe (21).

5. A land survey sampling device according to claim 1, characterized in that, The hammer assembly (3) includes a first hammer plate (31) and a second hammer plate (32) that matches the first hammer plate (31). The first hammer plate (31) and the second hammer plate (32) are provided with a sliding groove hole (35) at their center positions. Two sets of mounting holes (33) are provided on the first hammer plate (31) and the second hammer plate (32) near the front and rear ends of the sliding groove hole (35). A pin (34) is provided through the inner side of each set of mounting holes (33).

6. A land survey sampling device according to claim 5, characterized in that, The two groove holes (35) at the center of the first hammer (31) and the second hammer (32) are joined together to form a circular hole. The inner diameter of the circular hole is larger than the outer diameter of the drill pipe (21) and smaller than the outer diameter of the limiting plate (24).

Images