Soil sampling device

Abstract

The utility model relates to a soil sampling device which comprises a sampling barrel, the sampling barrel comprises an inner barrel with an opening in the bottom end and an outer barrel which is coaxially and rotationally matched with the inner barrel, the bottom end of the outer barrel is fixedly connected with a coaxial annular saw blade, and the bottom end of the annular saw blade protrudes out of the opening in the bottom end of the inner barrel; a driving part is connected to the outer cylinder and used for driving the outer cylinder to rotate on the inner cylinder. The utility model relates to a soil sampling device, and aims to solve the problems that in the prior art, when tight and firm soil is sampled, a sampling barrel is difficult to insert into the ground and needs to be inserted into the soil under relatively high pressure, so that the working intensity of soil sampling is relatively high, and the working efficiency of soil sampling is influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of soil detection, and particularly relates to a soil sampling device. Background Technique

[0002] Soil refers to a layer of loose material on the earth's surface, which is composed of various granular minerals, organic matter, moisture, air, microorganisms, etc., and can grow plants. People usually use soil to grow crops. The nutrient components such as fertilizers in the soil are important factors affecting the growth of crops. Therefore, relevant technicians often collect soil samples, detect the content of each fertilizer nutrient in the soil samples, and adjust the content of each fertilizer nutrient in the soil according to the detection data to promote the healthy growth of crops.

[0003] In the prior art, a sampling cylinder with a tubular structure is usually used for soil sampling work. By facing the opening of the sampling cylinder downward and inserting the sampling cylinder into the ground with force, part of the soil is embedded in the sampling cylinder, and the soil embedded in the sampling cylinder is pulled out of the soil together with the sampling cylinder to complete the soil sampling work. However, when sampling compact and firm soil, it is difficult to insert the sampling cylinder into the ground, and a relatively large pressure is required to insert the sampling cylinder into the soil, resulting in a high intensity of soil sampling work, thereby affecting the efficiency of soil sampling work. Content of the Utility Model

[0004] In view of this, the purpose of the utility model is to provide a soil sampling device to solve the problem that in the prior art, when sampling compact and firm soil, it is difficult to insert the sampling cylinder into the ground, and a relatively large pressure is required to insert the sampling cylinder into the soil, resulting in a high intensity of soil sampling work, thereby affecting the efficiency of soil sampling work.

[0005] The utility model is realized through the following technical solutions:

[0006] A soil sampling device includes a sampling cylinder. The sampling cylinder includes an inner cylinder with an open bottom end and an outer cylinder that is coaxially rotatably fitted with the inner cylinder. The bottom end of the outer cylinder is fixedly connected with a coaxial annular saw blade, and the bottom end of the annular saw blade protrudes from the bottom end opening of the inner cylinder.

[0007] A driving part is connected to the outer cylinder, and the driving part is used to drive the outer cylinder to rotate on the inner cylinder.

[0008] Further, a support column coaxial with the inner cylinder is provided at the top end of the inner cylinder. One end of the support column is fixedly connected to the top wall of the inner cylinder, and the other end passes through the top wall of the outer cylinder and is fixedly connected with a handle.

[0009] Further, a driven bevel gear sleeved outside the support column and a driving bevel gear meshing with the driven bevel gear are provided at the top end of the outer cylinder. The driven bevel gear is fixedly connected to the outer top surface of the outer cylinder.

[0010] The driving bevel gear is rotationally engaged with the outer cylindrical surface of the support column, and the plane of the rotation locus of the driving bevel gear is parallel to the axial direction of the support column.

[0011] Furthermore, the driving part includes a rack that is slidably connected to the support column along the axial direction of the support column, and a cylindrical gear that meshes with the rack. The cylindrical gear is rotationally engaged with the outer cylindrical surface of the support column, and the cylindrical gear is drivingly connected to the driving bevel gear.

[0012] Furthermore, a chute along the axial direction of the support column is provided on the outer cylindrical surface of the support column. One side of the rack is embedded in the chute and is slidably engaged along the axial direction of the support column;

[0013] A pedal perpendicular to the axial direction of the support column is provided on the rack. One side of the pedal is fixedly connected to the rack, and the other side extends radially outward from the support column.

[0014] Furthermore, two sprockets and a chain engaged with the two sprockets are provided on one side of the support column;

[0015] The axial direction of the cylindrical gear is parallel to the axial direction of the driving bevel gear, and the two sprockets are respectively fixedly connected to the cylindrical gear and the driving bevel gear.

[0016] Furthermore, there is one rack, and an elastic support member is provided between the rack and the chute. When the elastic support member is in a natural extended state, the top end of the rack abuts against the plane of the chute facing away from the outer cylinder.

[0017] Furthermore, there are two racks, and the two racks are symmetrically arranged with the cylindrical gear as the center. Two chutes corresponding to the two racks are provided on the support column.

[0018] The beneficial effects of the present utility model are as follows:

[0019] For this soil sampling device, an outer cylinder is sleeved outside the inner cylinder and is rotationally engaged. An annular saw blade is provided at the bottom end of the outer cylinder. The outer cylinder is driven to rotate on the inner cylinder by the driving part, so that the annular saw blade moves relative to the soil, cutting and separating the soil enclosed by the inner cylinder from the soil around the inner cylinder, facilitating the smooth insertion of the inner cylinder below the ground. At the same time, under the cutting action of the annular saw blade, only a relatively small pressure is required to press the cut and separated soil into the inner cylinder, reducing the working intensity of relevant technicians and improving the efficiency of soil sampling work to a certain extent.

[0020] Other advantages, objectives, and features of the present utility model will be described to some extent in the subsequent specification, and to some extent, will be obvious to those skilled in the art based on the study of the following text, or can be taught from the practice of the present utility model. The objectives and other advantages of the present utility model can be achieved and obtained through the following specification. Brief Description of the Drawings

[0021] Figure 1 It is a three-dimensional structural schematic diagram of the first embodiment of the present utility model;

[0022] Figure 2 It is an exploded view of the first embodiment of the present utility model;

[0023] Figure 3 It is Figure 2 an enlarged view of part A in

[0024] In the figure: inner cylinder 11, support column 12, chute 121, grip 13, driving bevel gear 14, push rod 17, cleaning disc 18, limit disc 19;

[0025] outer cylinder 21, annular saw blade 22, driven bevel gear 23;

[0026] rack 31, pedal 311, cylindrical gear 32, sprocket 33, chain 34. Detailed Description of the Preferred Embodiment

[0027] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model. Generally, the components of the embodiments of the present utility model described and illustrated in the drawings herein can be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the present utility model claimed, but is merely representative of selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without any creative effort fall within the scope of protection of the present utility model.

[0029] It should be noted that: like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, it does not require further definition and explanation in subsequent drawings.

[0030] In the above description of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "one side" and "the other side" is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, terms such as "first" and "second" are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0031] In addition, terms such as "identical" do not mean that the components are required to be absolutely identical, but there may be slight differences. The term "vertical" only means that the positional relationship between the components is relatively more vertical than "parallel", and does not mean that the structure must be completely vertical, but may be slightly inclined.

[0032] Embodiment 1

[0033] Please refer to Figures 1-3 , the present utility model provides a technical solution: a soil sampling device, including a sampling cylinder, the sampling cylinder includes an inner cylinder 11 with an open bottom end, and an outer cylinder 21 rotatably and coaxially fitted with the inner cylinder 11. A coaxial annular saw blade 22 is fixedly connected to the bottom end of the outer cylinder 21, and the bottom end of the annular saw blade 22 protrudes from the opening at the bottom end of the inner cylinder 11;

[0034] A driving part is connected to the outer cylinder 21, and the driving part is used to drive the outer cylinder 21 to rotate on the inner cylinder 11.

[0035] A cleaning disk 18 is arranged inside the inner cylinder 11. The outer circumferential surface of the cleaning disk 18 is attached to the inner circumferential surface of the inner cylinder 11, and the cleaning disk 18 is slidably and axially fitted with the inner cylinder 11 along the axis of the inner cylinder 11. A push rod 17 is arranged on the side of the cleaning disk 18 facing away from the opening of the inner cylinder 11. One end of the push rod 17 is fixedly connected to the cleaning disk 18, and the other end penetrates through the top wall of the inner cylinder 11 and extends outside the inner cylinder 11.

[0036] During use, when conducting soil sampling work, the inner cylinder 11 is placed with its opening facing downwards on the ground. The soil enclosed by the inner cylinder 11 is the soil to be sampled. The serrations of the annular saw blade 22 at the bottom end of the outer cylinder 21 come into contact with the soil. Manually apply a downward pressure to the inner cylinder 11 to make the annular saw blade 22 fully contact the soil. The driving part drives the outer cylinder 21 to rotate on the inner cylinder 11, causing the annular saw blade 22 to move relative to the soil, thereby cutting and separating the soil to be sampled from the surrounding soil and forming an annular groove on the ground to facilitate the insertion of the outer cylinder 21 and the inner cylinder 11 into the soil. At the same time, under the action of the downward pressure, the inner cylinder 11 automatically inserts into the annular groove together with the outer cylinder 21, causing the soil to be sampled to embed inside the inner cylinder 11 along the inner wall of the inner cylinder 11 to achieve the purpose of soil sampling. Under the action of the annular saw blade 22, the sampling cylinder can be inserted into the soil with a relatively small pressure to conduct soil sampling work, reducing the work intensity of relevant technical personnel and improving the efficiency of soil sampling work to a certain extent. After the inner cylinder 11 is filled with soil, shake and swing the sampling cylinder to break and separate the soil inside the inner cylinder 11 from the underground soil at the opening of the inner cylinder 11. Take out the sampling cylinder from the ground soil, and the soil inside the inner cylinder 11 will be taken out together with the sampling cylinder, thus completing the soil sampling work. Align the opening of the inner cylinder 11 with the opening of the container for holding the soil sample. Hold the outer cylinder 21 with one hand and press the push rod 17 forcefully with the other hand. The push rod 17 pushes the cleaning plate 18 to slide towards the opening of the inner cylinder 11. Then, the soil inside the inner cylinder 11 is pushed out and falls into the holding container, and the outer circular surface of the cleaning plate 18 is in contact with the inner circular surface of the inner cylinder 11, scraping off and pushing out the soil adhering to the inner circular surface of the inner cylinder 11 to facilitate the next soil sampling work.

[0037] In this embodiment: A support column 12 coaxial with the inner cylinder 11 is provided at the top end of the inner cylinder 11. One end of the support column 12 is fixedly connected to the top wall of the inner cylinder 11, and the other end passes through the top wall of the outer cylinder 21 and is fixedly connected to a handle 13.

[0038] By setting the support column 12 and fixedly connecting a handle 13 to the top end of the support column 12, it is convenient for relevant technical personnel to control the sampling device. At the same time, the support rod is used to transmit a downward pressure to the inner cylinder 11, providing convenience for the use of relevant technical personnel. The support column 12 is a hollow tubular structure. The end of the push rod 17 facing away from the inner cylinder 11 passes through the support column 12 and extends outside the support column 12, and is fixedly connected to a limit disk 19. The diameter value of the limit disk 19 is greater than the aperture value of the support column 12 to limit the limit disk 19 from sliding into the support column 12 and prevent the cleaning plate 18 from sliding out and falling off from inside the inner cylinder 11.

[0039] In this embodiment: A driven bevel gear 23 sleeved outside the support column 12 and a driving bevel gear 14 meshing with the driven bevel gear 23 are provided at the top end of the outer cylinder 21. The driven bevel gear 23 is fixedly connected to the outer top surface of the outer cylinder 21;

[0040] The driving bevel gear 14 is rotatably matched with the outer circumferential surface of the support column 12 , and the rotation track plane of the driving bevel gear 14 is parallel to the axial direction of the support column 12 .

[0041] In this embodiment: the driving part includes a rack 31 connected to the support column 12 for sliding along the axial direction of the support column 12, and a cylindrical gear 32 meshing with the rack 31, the cylindrical gear 32 is rotationally matched with the outer cylindrical surface of the support column 12, and the cylindrical gear 32 is transmission-connected to the driving bevel gear 14.

[0042] During use, when soil sampling is performed, a downward pressure is manually applied to the rack 31, causing the rack 31 to slide downward on the support column 12, pushing the cylindrical gear 32 to rotate on the support column 12, providing power for driving the bevel gear 14 to rotate on the support column 12, and then driving the bevel gear 14 to push the driven bevel gear 23 and the outer cylinder 21 to rotate on the inner cylinder 11, so that the annular saw blade 22 at the bottom end of the outer cylinder 21 cuts and separates the soil, and the inner cylinder 11 performs soil sampling.

[0043] In this embodiment: the outer circumferential surface of the support column 12 is provided with a slide groove 121 along the axial direction of the support column 12, and one side of the rack 31 is embedded in the slide groove 121 and slides along the axial direction of the support column 12;

[0044] The rack 31 is provided with a pedal 311 which is axially perpendicular to the support column 12 . One side of the pedal 311 is fixedly connected to the rack 31 , and the other side of the pedal 311 extends radially outward from the support column 12 .

[0045] A chute 121 is provided on the outer surface of the support column 12 along the axial direction of the support column 12, and one side of the rack 31 is embedded in the chute 121 to limit the free rotation of the rack 31 on the support column 12, so that the connection between the rack 31 and the cylindrical gear 32 is more stable. The pedal 311 is used for the relevant technical personnel to step on. By stepping on and squeezing the pedal 311, a downward pressure is applied to the rack 31, and the rack 31 is pushed to slide downward in the chute 121 to perform soil sampling. The operation is simple and convenient, and the work intensity of the relevant technical personnel is reduced to a certain extent. At the same time, by stepping on the pedal 311, a downward pressure is applied to the sampling device, so that the annular saw blade 22 is fully in contact with the soil, which promotes the insertion of the sampling tube below the ground and improves the efficiency of soil sampling.

[0046] In this embodiment: two sprockets 33 and a chain 34 meshing with the two sprockets 33 are provided on one side of the support column 12;

[0047] The axial direction of the cylindrical gear 32 is parallel to the axial direction of the driving bevel gear 14 , and the two sprockets 33 are fixedly connected to the cylindrical gear 32 and the driving bevel gear 14 respectively.

[0048] The cylindrical gear 32 is arranged in the middle of the support column 12. By arranging the cylindrical gear 32 away from the outer cylinder 21, the rack 31 has a larger sliding stroke on the support column 12. So that in a complete pedaling action, the rack 31 slides from the highest point to the lowest point, pushing the cylindrical gear 32 to rotate multiple circles at one time. Through the transmission of the sprocket 33 and the chain 34, the driving gear rotates multiple circles at one time, so that the driven bevel gear 23 drives the circular saw blade 22 at the bottom of the outer cylinder 21 to rotate continuously, continuously cutting and separating the soil, making the sampling cylinder quickly inserted below the ground, and improving the efficiency of soil sampling work.

[0049] There are two racks 31, and the two racks 31 are symmetrically arranged with the cylindrical gear 32 as the center. Two sliding grooves 121 corresponding to the two racks 31 are opened on the support column 12.

[0050] By arranging two racks 31, when the cylindrical gear 32 rotates, the two racks 31 slide in opposite directions in the corresponding sliding grooves 121.

[0051] During use, when stepping on the pedal 311 on the first rack 31, the pedal 311 pushes the first rack 31 to slide downward in the corresponding sliding groove 121, and the cylindrical gear 32 rotates forward, so that the circular saw blade 22 rotates forward. Since stepping on the pedal 311 applies a downward pressure to the whole sampling device, the circular saw blade 22 rotates forward while being in close contact with the soil, cutting and separating the soil with higher efficiency.

[0052] When the first rack 31 slides downward until it abuts against the plane of the sliding groove 121 facing the outer cylinder 21, step on the pedal 311 on the second rack 31, and the cylindrical gear 32 rotates reversely, so that the circular saw blade 22 rotates reversely. Since stepping on the pedal 311 applies a downward pressure to the whole sampling device, the circular saw blade 22 rotates reversely while being in close contact with the soil, and continues to cut and separate the soil with higher efficiency.

[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the purpose and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A soil sampling device, comprising a sampling cylinder, characterized in that: The sampling tube comprises an inner tube (11) with an opening at the bottom end, and an outer tube (21) coaxially rotatably matched with the inner tube (11); a coaxial annular saw blade (22) is fixedly connected to the bottom end of the outer tube (21), and the bottom end of the annular saw blade (22) protrudes from the bottom end opening of the inner tube (11); The outer cylinder (21) is connected to a driving part, and the driving part is used to drive the outer cylinder (21) to rotate on the inner cylinder (11); The driving part comprises a rack (31) connected to the support column (12) in an axially sliding manner along the support column (12), and a cylindrical gear (32) meshing with the rack (31); the cylindrical gear (32) is rotationally matched with the outer circumferential surface of the support column (12), and the cylindrical gear (32) is transmission-connected to the driving bevel gear (14); The outer circumferential surface of the support column (12) is provided with a slide groove (121) along the axial direction of the support column (12), and one side edge of the rack (31) is embedded in the slide groove (121) and slides along the axial direction of the support column (12); The rack (31) is provided with a pedal (311) axially perpendicular to the support column (12); one side of the pedal (311) is fixedly connected to the rack (31) and the other side extends radially outward from the support column (12) along the support column (12); Two racks (31) are provided, and the two racks (31) are symmetrically arranged with the cylindrical gear (32) as the center. The support column (12) is provided with two sliding grooves (121) corresponding to the two racks (31) one by one.

2. The soil sampling device according to claim 1, characterized in that: A support column (12) coaxial with the inner cylinder (11) is provided at the top end of the inner cylinder (11); one end of the support column (12) is fixedly connected to the top wall of the inner cylinder (11), and the other end passes through the top wall of the outer cylinder (21) and is fixedly connected to a handle (13).

3. The soil sampling device according to claim 2, characterized in that: The top end of the outer cylinder (21) is provided with a driven bevel gear (23) sleeved outside the support column (12) and a driving bevel gear (14) meshing with the driven bevel gear (23), and the driven bevel gear (23) is fixedly connected to the outer top surface of the outer cylinder (21); The driving bevel gear (14) is rotationally matched with the outer cylindrical surface of the support column (12), and the rotation track plane of the driving bevel gear (14) is parallel to the axial direction of the support column (12).

4. The soil sampling device according to claim 3, characterized in that: One side of the support column (12) is provided with two sprocket wheels (33) and a chain (34) meshed with the two sprocket wheels (33); The axial direction of the cylindrical gear (32) is parallel to the axial direction of the driving bevel gear (14), and the two sprockets (33) are fixedly connected to the cylindrical gear (32) and the driving bevel gear (14) respectively.

Images