Soil sampler for tobacco field

Abstract

A soil sampler for a tobacco field relates to the technical field of soil sampling and comprises a sampler main body and an accommodating space, a connecting pipe is arranged on the lower end face of the sampler main body, a circular-tube-shaped connecting shaft is fixedly arranged on the left side of the top of the connecting pipe, and a sampling head is fixedly arranged at the bottom of the connecting pipe. A sampling head is arranged in the sampler body, an inlet is formed between the center of the bottom of the sampling head and the interior of the sampling head in a communicating mode, the containing space is formed in the bottom end face of the sampler body, and a push plate is slidably arranged at the upper end of the interior of the containing space; particularly, after the sampler completes soil collection, the connecting pipe is rotated to the other side, so that the accommodating space at the lower end of the sampler is opened, and then the soil sample can be completely pushed out of the sampler through the synergistic effect of the push rod and the push plate; therefore, the problem that soil is loose in a traditional soil unloading mode is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of soil sampling, and more particularly to a soil sampler used in tobacco fields. Background Art

[0002] In tobacco cultivation, soil quality directly impacts tobacco growth and leaf quality. Therefore, regular soil sampling and analysis are crucial for ensuring healthy tobacco growth. Soil samplers, specialized tools for obtaining soil samples, are widely used in agriculture and environmental monitoring. Existing soil samplers typically utilize shovel-like structures or soil augers to facilitate sampling at varying depths. However, existing soil sampling devices exhibit several technical drawbacks in their soil unloading methods.

[0003] For example, after removing a sample, traditional samplers typically tilt the sampling tube and gently shake it, or suspend it in mid-air and tap it gently with hands or other tools to expel the soil sample from the tube. This method easily loosens the soil sample during unloading and fails to maintain the soil's stratigraphic sequence and composition. This method is particularly difficult to meet the requirements for sample integrity in geological exploration.

[0004] Therefore, in view of the above technical defects, it is necessary to propose a soil sampler for tobacco fields. Utility Model Content

[0005] The utility model aims to address the above-mentioned defects and proposes a soil sampler for tobacco fields. After completing sampling and collection, the sampler can keep the unloaded soil intact, thereby avoiding the problem of loose soil samples.

[0006] The utility model provides a soil sampler for tobacco fields, comprising:

[0007] The sampler body is provided with a connecting tube on the lower end surface of the sampler body, a circular tubular connecting shaft is fixedly provided on the left side of the top of the connecting tube, and the upper end of the connecting shaft is rotatably connected to the bottom end surface of the sampler body, a sampling head is fixedly provided at the bottom of the connecting tube, and an inlet is opened between the sampling head and the interior along the center of the bottom, and the inlet is connected to the interior of the connecting tube;

[0008] The accommodating space is opened at the bottom end surface of the sampler body, and the accommodating space is connected with the internal space of the connecting tube and the sampling head. A push plate is slidably provided at the upper end of the interior of the accommodating space, and a group of push rod assemblies is fixedly provided on the upper end surface of the push plate, wherein one end of the push rod assembly also extends to the top upper end of the sampler body.

[0009] Preferably: the push rod assembly includes an upper push rod and a lower push rod, wherein the lower push rod is fixedly arranged on the push plate, and a fixing groove corresponding to the lower push rod is opened at the top of the accommodating space, and the fixing sleeve and the upper end of the lower push rod are threadedly connected, and a vertical groove is opened at the center of the upper end surface of the sampler body to communicate with the fixing groove, and the lower end of the upper push rod passes through the vertical groove and is connected to the lower push rod.

[0010] Preferably, the diameter of the vertical groove is smaller than the diameter of the fixed groove.

[0011] Preferably, a blocking piece is fixedly provided on one side of the outer wall of the sampler body, and the lower end of the blocking piece extends toward the outer side surface of the connecting tube.

[0012] Preferably: first inner cavities separated from each other are respectively provided above the accommodating space along the inside of the sampler body, wherein the first inner cavity is vertically arranged and filled with gas, a piston rod is slidably arranged between the first inner cavity and the accommodating space, a mounting block is fixedly provided at the bottom end of the piston rod, and a group of springs are provided through the outer end surface of the piston rod, and the upper and lower ends of the springs are respectively connected to the top surface of the accommodating space and the mounting block.

[0013] Preferably: the connecting tube is provided with a fixed seat with a circular tubular structure suspended along the inner center end, and a support rod for support is fixedly provided along the outer end surface of the fixed seat and the inner wall of the connecting tube, and a sealing head with a conical structure is provided on the lower surface of the fixed seat, wherein the sealing head is arranged opposite to the inlet, and a second inner cavity is vertically opened on the lower surface of the fixed seat, and a connecting rod is slidably provided in the second inner cavity, and the lower end of the connecting rod is connected to the sealing head.

[0014] The beneficial effects of the utility model are:

[0015] 1. Compared with the existing technology, this solution achieves non-destructive removal of soil samples by providing a rotating connecting tube and a push plate that can move up and down in the sampler. Specifically, after the sampler completes soil collection, the connecting tube is rotated to the other side to open the accommodating space at the lower end of the sampler. Then, through the coordinated action of the push rod and the push plate, the soil sample can be completely pushed out of the sampler, avoiding the problem of loose soil in traditional soil unloading methods and ensuring the integrity of the soil sample.

[0016] 2. This solution incorporates a removable plug at the inlet connecting the tube and the sampling head. This innovative design allows for immediate sealing of the inlet after soil collection, effectively preventing the soil sample from accidentally falling out during retrieval. This instant sealing mechanism not only improves the preservation quality of the soil sample but also reduces potential contamination and loss during transportation and subsequent processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The utility model is a schematic structural diagram of a soil sampler for tobacco fields.

[0018] Figure 2 for Figure 1 Schematic diagram of the installation structure at point A in the figure.

[0019] Figure 3 The utility model is a schematic diagram of the internal structure of a soil sampler used in tobacco fields.

[0020] Figure 4 for Figure 3 Enlarged schematic diagram of point B in FIG.

[0021] Figure 5 This is a schematic diagram of the installation structure of the upper push rod and the lower push rod of the utility model.

[0022] Figure 6 This is a schematic diagram of the cross-sectional structure of the connecting pipe and the sampling head of the utility model.

[0023] Figures 1-6 Middle: 1- sampler body; 11- accommodating space; 12- vertical slot; 13- fixing slot; 14- first inner cavity; 15- piston rod; 16- spring; 17- mounting block; 18- air duct; 19- baffle; 2- upper push rod; 21- lower push rod; 22- push plate; 3- connecting pipe; 31- connecting shaft; 32- fixing seat; 33- supporting rod; 34- second inner cavity; 341- air supply pipe; 35- connecting rod; 36- plugging head; 4- sampling head; 41- inlet; 5- limiting slot; 51- limiting block. DETAILED DESCRIPTION

[0024] The following will be combined with the embodiments to clearly and completely describe the technical solutions of the present invention. Obviously, the embodiments described are only some of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work shall fall within the scope of protection of the present invention.

[0025] As attached Figure 1 To the attached Figure 6As shown: A soil sampler for tobacco fields, including a sampler body 1, a connecting tube 3 is provided on the lower end surface of the sampler body 1, and a connecting shaft 31 is fixedly provided on the top left side of the connecting tube 3. The connecting shaft 31 is a circular tubular structure, and the upper end of the connecting shaft 31 is rotatably connected to the bottom end surface of the sampler body 1. Then, a conical sampling head 4 is fixedly provided at the bottom of the connecting tube 3. The sampling head 4 has an inlet 41 connected between the bottom center and the interior, and the inlet 41 is connected to the interior of the connecting tube 3. At the same time, a storage space 11 for storing soil is provided between the sampler body 1 and the bottom end surface. The storage space 11 is connected to the internal space of the connecting tube 3 and the sampling head 4.

[0026] In the above structure, through the arrangement of the sampling head 4 and the connecting tube 3, when the sampler body is inserted into the soil, the soil can be stored in the storage space 11 from the inlet 41; when the storage is completed, the connecting tube 3 can be rotated to the other side through the connecting shaft 31, and the storage space 11 at the lower end of the sampler will be opened after rotation, making it convenient to take out the soil in the storage space 11.

[0027] Furthermore, a baffle 19 is fixedly mounted on one side of the outer wall of the sampler body 1, and the lower end of the baffle 19 extends toward the outer side of the connecting tube 3. This design allows the extending end of the baffle 19 to limit the rotating connecting tube 3, allowing the connecting tube 3 to be quickly aligned with the sampler's receiving space 11 during rotation.

[0028] like Figures 1 to 5 As shown, in this embodiment, a push plate 22 is slidably mounted on the upper end of the accommodating space 11, and a lower push rod 21 is fixedly mounted on the upper end surface of the push plate 22. A fixing groove 13 corresponding to the lower push rod 21 is provided at the top end of the accommodating space 11, and the fixing sleeve is threadedly connected to the upper end of the lower push rod 21. Furthermore, a vertical groove 12 is provided at the center of the upper end surface of the sampler body 1, connecting to the fixing groove 13. The diameter of the vertical groove 12 is smaller than that of the fixing groove 13. An upper push rod 2 is disposed above the sampler body 1, and the lower end of the upper push rod 2 passes through the vertical groove 12 and is connected to the lower push rod 21.

[0029] In the above structure, the arrangement of the upper push rod 2, the lower push rod 21, and the push plate 22 allows the user to apply a downward thrust to the push plate 22 via the upper and lower push rods 21, thereby allowing the push plate 22 to move downward within the receiving space 11, thereby smoothly pushing the soil within the receiving space 11 to the outside, thereby ensuring the integrity of the soil during collection. In addition, the threaded design of the lower push rod 21 and the fixing groove 13 allows the two push rods to be fixed after the lower push rod 21 and the fixing groove 13 are threadedly connected. Once fixed, the entire push plate 22 can be fixed, thus avoiding the problem of the push plate 22 automatically slipping during soil collection.

[0030] Furthermore, a pressing plate is fixedly provided on the upper end surface of the upper push rod 2. When in use, the sampler body 1 is allowed to be quickly squeezed into the soil by the pressing plate.

[0031] Furthermore, two first inner cavities 14 separated from each other are respectively provided above the accommodating space 11 along the interior of the sampler body 1. The first inner cavity 14 is vertically arranged and filled with gas. Then, a piston rod 15 is slidably provided between the first inner cavity 14 and the accommodating space 11. A mounting block 17 is fixedly provided at the bottom end of the piston rod 15, and a set of springs 16 are provided through the outer end surface of the piston rod 15. The upper and lower ends of the spring 16 are respectively connected to the top surface of the accommodating space 11 and the mounting block 17. This design allows the push plate 22 to push the piston rod 15 upward when the user drives the push plate 22 upward through the upper push rod 2. At this time, the piston rod 15 can squeeze out the gas in the first inner cavity 14.

[0032] Furthermore, an air duct 18 is provided on one side of the interior of the sampler body, and the upper end of the air duct 18 is connected to the first inner cavity 14. This design can squeeze the gas in the first inner cavity 14 into the air duct 18.

[0033] like Figures 3 to 6 In this embodiment, a cylindrical fixing seat 32 is suspended along the center end of the connecting tube 3. A support rod 33 is fixedly mounted along the outer end surface of the fixing seat 32 and the inner wall of the connecting tube 3 for support. A conical plugging head 36 is disposed on the lower surface of the fixing seat 32, and the plugging head 36 is positioned opposite the inlet 41. A second inner cavity 34 is vertically defined on the lower surface of the fixing seat 32. A connecting rod 35 is slidably mounted within the second inner cavity 34, and the lower end of the connecting rod 35 is connected to the plugging head 36.

[0034] In the above structure, the second inner cavity 34 and the plugging head 36 are provided so that the plugging head 36 can be moved by the connecting rod 35. After the movement, the plugging head 36 can seal the inlet 41. This design allows the plugging head 36 to block the inlet 41 after the sampler completes soil collection, thereby preventing the soil in the sampler from falling out of the inlet 41. In addition, because the fixing seat 32 is provided in the middle of the connecting tube 3, when the soil enters the inlet 41 of the sampling head 4, it can enter the receiving space 11 from the inner edge of the connecting tube 3, thus ensuring that the soil can be stably collected into the receiving space 11.

[0035] Furthermore, an air pipe 341 is provided on one side of the interior of the connecting pipe 3, wherein one end of the air pipe 341 passes through the inner end of the connecting shaft 31 and is sealed and rotatably connected to the air duct 18. The other end of the air pipe 341 is connected to the second inner cavity 34. This design allows the gas in the air duct 18 to be transported to the second inner cavity 34 through the air pipe 341, which makes it convenient for the connecting rod 35 to push the blocking head 36 to move. In addition, since one end of the air pipe 341 is also rotatably and sealed with the interior of the air pipe 341, this design enables the air pipe 341 to adapt to the rotation process of the connecting pipe 3, so that the connecting pipe 3 will not interfere with the air pipe 341 after rotation, thereby ensuring that the gas in the air pipe 341 can be stably transported to the second inner cavity 34.

[0036] Furthermore, corresponding limiting assemblies are provided in both the first inner cavity 14 and the second inner cavity 34. These limiting assemblies include limiting grooves 5 and limiting blocks 51. The limiting grooves 5 are vertically distributed and arranged on the inner wall end surfaces of the first inner cavity 14 and the second inner cavity 34, while the limiting blocks 51 are slidably disposed within the limiting grooves 5, and one end of the limiting blocks 51 is respectively connected to the corresponding piston rod 15 or connecting rod 35. This design allows the limiting grooves 5 and the limiting blocks 51 to limit the sliding distance of the piston rod 15 and the connecting rod 35 when they slide in the corresponding first inner cavity 14 and the second inner cavity 34, effectively preventing the piston rod 15 and the connecting rod 35 from slipping out of the grooves during movement.

[0037] Finally, it should be noted that the above embodiments are only specific implementation methods of the present application, which are used to illustrate the technical solutions of the present application rather than to limit them. The protection scope of the present application is not limited thereto. Although the present application has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that any technician familiar with this technical field can still modify the technical solutions recorded in the aforementioned embodiments within the technical scope disclosed in the present application, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A soil sampler for tobacco fields, characterized in that: include: A sampler body (1), wherein a connecting tube (3) is provided on the lower end surface of the sampler body (1), a circular tubular connecting shaft (31) is fixedly provided on the left side of the top of the connecting tube (3), and the upper end of the connecting shaft (31) is rotatably connected to the bottom end surface of the sampler body (1), a sampling head (4) is fixedly provided on the bottom of the connecting tube (3), and an inlet (41) is opened along the bottom center of the sampling head (4) to communicate with the interior, and the inlet (41) and the interior of the connecting tube (3) are communicated with each other; An accommodating space (11) is provided at the bottom end surface of the sampler body (1), and the accommodating space (11) is connected to the internal space of the connecting tube (3) and the sampling head (4), a push plate (22) is slidably provided at the upper end of the interior of the accommodating space (11), and a push rod assembly is fixedly provided on the upper end surface of the push plate (22), wherein one end of the push rod assembly also extends to the top upper end of the sampler body (1).

2. A soil sampler for tobacco fields according to claim 1, characterized in that: The push rod assembly includes an upper push rod (2) and a lower push rod (21), wherein the lower push rod (21) is fixedly arranged on the push plate (22), and a fixing groove (13) corresponding to the lower push rod (21) is opened at the top end of the accommodating space (11), and the fixing sleeve and the upper end of the lower push rod (21) are connected in a threaded manner. At the same time, a vertical groove (12) is opened at the center of the upper end surface of the sampler body (1) and communicated with the fixing groove (13). After the lower end of the upper push rod (2) passes through the vertical groove (12), it is connected to the lower push rod (21).

3. The soil sampler for tobacco fields according to claim 2, characterized in that: The diameter of the vertical groove (12) is smaller than the diameter of the fixed groove (13).

4. The soil sampler for tobacco fields according to claim 1, characterized in that: A baffle (19) is fixedly provided on one side of the outer wall of the sampler body (1), and the lower end of the baffle (19) extends toward the outer side surface of the connecting tube (3).

5. The soil sampler for tobacco fields according to claim 1, characterized in that: Above the accommodating space (11), first inner cavities (14) separated from each other are respectively provided along the interior of the sampler body (1), wherein the first inner cavity (14) is vertically arranged and filled with gas, and a piston rod (15) is slidably provided in the first inner cavity (14) and between the accommodating space (11), a mounting block (17) is fixedly provided at the bottom end of the piston rod (15), and a spring (16) is provided through the outer end surface of the piston rod (15), and the upper and lower ends of the spring (16) are respectively connected to the top surface of the accommodating space (11) and the mounting block (17).

6. The soil sampler for tobacco fields according to claim 1, characterized in that: The connecting tube (3) is provided with a fixed seat (32) of a circular tubular structure suspended along the inner center end thereof, and a support rod (33) is fixedly provided along the outer end surface of the fixed seat (32) and the inner wall of the connecting tube (3) for support, and a plugging head (36) of a conical structure is provided on the lower surface of the fixed seat (32), wherein the plugging head (36) is arranged opposite to the inlet (41), and a second inner cavity (34) is vertically opened on the lower surface of the fixed seat (32), and a connecting rod (35) is slidably provided in the second inner cavity (34), and the lower end of the connecting rod (35) is connected to the plugging head (36).

7. A soil sampler for tobacco fields according to any one of claims 1 or 5, characterized in that: An air duct (18) is also provided on one side of the interior of the sampler body (1), and the upper end of the air duct (18) is connected to the first inner cavity (14). An air supply pipe (341) is also provided on one side of the interior of the connecting tube (3), wherein one end of the air supply pipe (341) passes through the inner end of the connecting shaft (31) and is sealed and rotatably connected to the air duct (18), and the other end of the air supply pipe (341) is connected to the second inner cavity (34).

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