Portable soil sampler for tobacco planting

Abstract

The utility model discloses a portable soil sampler for tobacco planting, which relates to the technical field of soil sampling and comprises a sampling cylinder, two pedals are fixed outside the sampling cylinder, a bearing component is placed below the sampling cylinder, the sampling cylinder is placed on the bearing component by the aid of the two pedals, a through hole is formed in the top of the sampling cylinder, and the sampling cylinder is arranged in the through hole. A guide rod is slidably inserted into the through hole, a spiral drill bit is fixed to the bottom end of the guide rod, the spiral drill bit is sleeved with the sampling cylinder, the bearing assembly is used for containing soil collected by the spiral drill bit, and the guide rod is fixedly sleeved with a fixing plate. The distance that the fixing plate can move downwards is controlled by referring to the dial gauge on the guide rod, moving the carrier plate on the stud and adjusting the distance between the limiting ring and the fixing plate, so that the sampling depth is accurately controlled, subsequent accurate detection and adjustment of soil are facilitated, the carrier plate can be fixed on the stud by means of the two nuts, the position of the limiting ring is locked, and the sampling depth is controlled. And the limiting ring effectively limits the downward moving distance of the fixing plate.

Description

Technical Field

[0001] This utility model relates to the field of soil sampling technology, and in particular to a portable soil sampler for tobacco cultivation. Background Technology

[0002] Tobacco is an annual herbaceous plant belonging to the genus Nicotiana in the family Solanaceae. Native to South America, it is widely cultivated throughout China. Tobacco prefers warm, sunny environments, is not cold-hardy, but is relatively heat-tolerant. It thrives in fertile, deep, and well-drained soil. Propagation is primarily through division and sowing. Soil is where tobacco absorbs nutrients and water, and various environmental conditions also influence its growth and development through the soil. From the perspective of tobacco production and its impact on leaf quality, the differences in leaf quality between different soil types are very significant.

[0003] To improve the quality of tobacco cultivation, it is necessary to regularly test various indices of the soil in tobacco-growing areas and adjust the soil composition as needed to better meet the actual requirements of tobacco cultivation and growth. The first step in soil testing is soil sampling. Commonly used portable soil sampling devices are generally operated manually by staff, whose subjective control over the sampling depth leads to inconsistent sampling depths at multiple points. This affects the accuracy of soil index testing, consequently impacting subsequent soil improvement and adjustments, and ultimately hindering tobacco cultivation and growth. Utility Model Content

[0004] The purpose of this application is to provide a portable soil sampler for tobacco cultivation, in order to solve the problem that the commonly used portable soil sampling devices mentioned in the background art are generally operated manually by staff, and the subjective control of soil sampling depth leads to inconsistent sampling depths at multiple points. This affects the accuracy of soil index detection, and consequently affects subsequent soil improvement and adjustment, which is detrimental to tobacco cultivation and growth.

[0005] To achieve the above objectives, this application provides the following technical solution: a portable soil sampler for tobacco cultivation, comprising a sampling tube, two pedals fixed to the outside of the sampling tube, and a support assembly placed below the sampling tube. The sampling tube rests on the support assembly with the aid of the two pedals. A through hole is provided at the top of the sampling tube, and a guide rod is slidably inserted into the through hole. A auger drill bit is fixed at the bottom end of the guide rod. The sampling tube is sleeved on the outside of the auger drill bit. The support assembly is used to hold the soil collected by the auger drill bit. A fixing plate is fixedly sleeved on the outside of the guide rod, and a rotating rod is fixed at the top end of the guide rod. A stud is fixed at the top of the sampling tube, and two nuts are sleeved on the stud, with the stud and the two nuts being threadedly connected. A carrier plate is slidably sleeved on the outside of the stud, with the bottom of the carrier plate located between the two nuts. A limit ring is fixed at the top of the carrier plate, and the limit ring is sleeved on the outside of the guide rod, with the limit ring located between the fixing plate and the sampling tube.

[0006] Furthermore, a scale is provided on the outside of the guide rod.

[0007] Furthermore, a stop is fixed to the top of the stud.

[0008] Furthermore, a spring is fixed to the outer wall of the sampling tube, an end plate is fixed to the other end of the spring, a locking rod is fixed to the end plate, a sliding groove for sliding the locking rod is provided on the sampling tube, and a locking groove adapted to the locking rod is provided on the guide rod.

[0009] Furthermore, the load-bearing assembly includes a transfer cylinder, the outer wall of which is fixed with a handle.

[0010] Furthermore, a fixing block is fixed to the outer wall of the transfer cylinder, and an insertion hole is provided on the fixing block, into which a rubber hammer is slidably inserted.

[0011] Furthermore, a limit cap is fitted onto the bottom of the rubber hammer, and the rubber hammer is threadedly connected to the limit cap.

[0012] In summary, the technical effects and advantages of this utility model are as follows:

[0013] In this invention, referring to the scale on the guide rod, the carrier plate on the stud is moved to adjust the distance between the limiting ring and the fixed plate, so as to control the downward distance that the fixed plate can move, thereby accurately controlling the sampling depth and facilitating subsequent accurate detection and adjustment of the soil. The carrier plate can be fixed on the stud with the help of two nuts, thereby locking the position of the limiting ring, so that the limiting ring effectively restricts the downward distance of the fixed plate.

[0014] In this invention, with the help of the spring force, the end plate can push the locking rod into the slot to lock the positions of the sampling tube, guide rod and locking rod. In this way, the auger drill bit can be completely wrapped by the sampling tube to prevent it from scratching the staff during transportation.

[0015] In this invention, a transfer cylinder is used to support the sampling cylinder on the two pedals, and the auger bit is pushed into the transfer cylinder. A rubber hammer is used to strike the guide rod and the sampling cylinder, causing the soil collected by the sampling cylinder and the auger bit to fall off. The transfer cylinder is then used to collect the soil, which is convenient for subsequent bagging and testing. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the embodiments or the prior art will be briefly introduced below.

[0017] Figure 1 This is a three-dimensional structural diagram of a portable soil sampler for tobacco cultivation according to an embodiment of this application;

[0018] Figure 2 This is a diagram showing the positional relationship between the sampling cylinder, pedal, guide rod, and stud in the embodiments of this application;

[0019] Figure 3 This is a diagram showing the connection relationship between the guide rod, auger drill bit, fixing plate, and rotating rod in the embodiments of this application;

[0020] Figure 4 This is a diagram showing the positional relationship between the sampling cylinder, spring, end plate, and clamping rod in the embodiments of this application;

[0021] Figure 5 This is a schematic diagram of the overall structure of the carrier component in the embodiments of this application;

[0022] Figure 6 This is a partial structural schematic diagram of the carrier component in an embodiment of this application.

[0023] In the diagram: 1. Sampling tube; 2. Pedal; 3. Through hole; 4. Guide rod; 5. Spiral drill bit; 6. Fixing plate; 7. Rotating rod; 8. Stud; 9. Nut; 10. Carrier plate; 11. Limiting ring; 12. Spring; 13. End plate; 14. Clamping rod; 15. Clamping groove; 16. Transmission tube; 17. Handle; 18. Fixing block; 19. Insertion hole; 20. Rubber hammer; 21. Limiting cover. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Example: Reference Figure 1-6The portable soil sampler for tobacco cultivation shown includes a sampling tube 1, two foot pedals 2 fixed to the outside of the sampling tube 1, and a support assembly placed below the sampling tube 1. The sampling tube 1 rests on the support assembly with the help of the two foot pedals 2. A through hole 3 is opened at the top of the sampling tube 1, and a guide rod 4 is slidably inserted into the through hole 3. A scale is attached to the outside of the guide rod 4, and a auger drill bit 5 is fixed to the bottom end of the guide rod 4. The sampling tube 1 is sleeved on the outside of the auger drill bit 5. The support assembly is used to hold the soil collected by the auger drill bit 5. A fixing plate 6 is fixedly sleeved on the outside of the guide rod 4, and a rotating rod 7 is fixed to the top end of the guide rod 4. Rotating and pressing down the rotating rod 7 causes the rotating rod 7 to drive the guide rod 4 to pull. The auger bit 5 rotates and can be screwed into the soil layer for sampling. After the auger bit 5 is lifted, the sampling tube 1 can wrap the soil to be sampled, which facilitates the soil sampling work. A stud 8 is fixed at the top of the sampling tube 1, and a stop block is fixed at the top of the stud 8. Two nuts 9 are sleeved on the stud 8, and the stud 8 and the two nuts 9 are threaded. A carrier plate 10 is slidably sleeved on the outside of the stud 8. The stop block can prevent the carrier plate 10 and the two nuts 9 from detaching from the stud 8. The bottom of the carrier plate 10 is located between the two nuts 9. A limit ring 11 is fixed at the top of the carrier plate 10. The limit ring 11 is sleeved on the outside of the guide rod 4, and the limit ring 11 is located between the fixed plate 6 and the sampling tube 1.

[0026] Referring to the scale on the guide rod 4, move the carrier plate 10 on the stud 8 and adjust the distance between the limiting ring 11 and the fixing plate 6 to control the downward movement distance of the fixing plate 6, thereby accurately controlling the sampling depth and facilitating subsequent accurate soil testing and adjustment. The carrier plate 10 can be fixed on the stud 8 with the help of the two nuts 9, thereby locking the position of the limiting ring 11 and effectively limiting the downward movement distance of the fixing plate 6.

[0027] Among them, a spring 12 is fixed on the outer wall of the sampling tube 1, an end plate 13 is fixed on the other end of the spring 12, a locking rod 14 is fixed on the end plate 13, a sliding groove for the locking rod 14 is opened on the sampling tube 1, and a locking groove 15 adapted to the locking rod 14 is opened on the guide rod 4.

[0028] With the help of the spring force of the spring 12, the end plate 13 can push the locking rod 14 into the slot 15 to lock the positions of the sampling tube 1, guide rod 4 and locking rod 14. In this way, the spiral drill bit 5 can be completely wrapped by the sampling tube 1 to prevent it from scratching the staff during transportation.

[0029] The supporting component includes a transfer cylinder 16. A handle 17 and a fixing block 18 are fixed to the outer wall of the transfer cylinder 16. The handle 17 is used to facilitate lifting the transfer cylinder 16. An insertion hole 19 is provided on the fixing block 18. A rubber hammer 20 is slidably inserted into the insertion hole 19. The rubber hammer 20 consists of a hammer head and a hammer handle. The hammer head is installed on the hammer handle. A limit cover 21 is sleeved on the end of the hammer handle away from the hammer head. The limit cover 21 is threadedly connected to the hammer handle. When the hammer handle of the rubber hammer 20 is inserted into the insertion hole 19, the limit cover 21 is threadedly connected to the hammer handle, so that the limit cover 21, together with the hammer head, can prevent the rubber hammer 20 from separating from the fixing block 18, thereby reducing the possibility of the rubber hammer 20 being lost.

[0030] Using the transfer cylinder 16 to support the sampling cylinder 1 on the two pedals 2, the auger bit 5 is pushed into the transfer cylinder 16. The rubber hammer 20 is used to strike the guide rod 4 and the sampling cylinder 1, so that the soil collected on the sampling cylinder 1 and the auger bit 5 is shaken off and collected with the help of the transfer cylinder 16, which facilitates the subsequent bagging and testing of the soil.

[0031] Working principle of this utility model:

[0032] This utility model is designed based on the existing portable soil sampler, which is small in size and easy to carry and use. During sampling, the staff steps on the pedal 2 to apply pressure to the sampling tube 1, forcing the sampling tube 1 to insert into the soil layer. The carrier plate 10 is moved upward along the stud 8, and the distance between the limiting ring 11 and the fixing plate 6 is adjusted. Referring to the scale on the guide rod 4, the distance between the limiting ring 11 and the fixing plate 6 is made to correspond to the soil drilling depth. The two nuts 9 are tightened with a wrench to fix the carrier plate 10 to the stud 8. In this way, the position of the limiting ring 11 is locked.

[0033] While rotating the rotating rod 7, press down on the rotating rod 7, so that the rotating rod 7 drives the auger drill bit 5 to rotate with the help of the guide rod 4, causing the auger drill bit 5 to spin into the soil layer until the fixed plate 6 is restricted by the limiting ring 11 and can no longer move down. This indicates that the auger drill bit 5 has drilled to a suitable depth below the soil layer. Pull the rotating rod 7 upward, so that the rotating rod 7 pulls the auger drill bit 5 upward with the help of the guide rod 4 until the auger drill bit 5 is completely inside the sampling tube 1. The end plate 13 can push the locking rod 14 into the slot 15 with the help of the elastic force of the spring 12, so that the sampling tube 1 and the guide rod 4 are locked by the locking rod 14. In this way, the auger drill bit 5 and the sampling tube 1 can maintain a relatively stable position, and the sampling tube 1 can be pulled out from the soil layer.

[0034] Insert the sampling tube 1 into the transfer tube 16. The sampling tube 1 can be mounted on the transfer tube 16 with the help of the two pedals 2. Pull the end plate 13 to make the locking rod 14 disengage from the locking groove 15. The auger bit 5 can slide down and detach from the sampling tube 1 by its own weight. Unscrew the limit cover 21 to remove the rubber hammer 20. Use the rubber hammer 20 to strike the sampling tube 1 and the auger bit 5 to shake off the soil on both. The sampled soil falls into the transfer tube 16. After that, remove the sampling tube 1. The staff can hold the handle 17 to bag the sampled soil and send it for testing. After cleaning the device, soil sampling can be carried out again.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A portable soil sampler for tobacco cultivation, comprising a sampling tube (1), characterized in that: Two foot pedals (2) are fixed to the outside of the sampling tube (1), and a support assembly is placed below the sampling tube (1). The sampling tube (1) rests on the support assembly with the help of the two foot pedals (2). A through hole (3) is opened at the top of the sampling tube (1), and a guide rod (4) is slidably inserted into the through hole (3). A spiral drill bit (5) is fixed at the bottom end of the guide rod (4). The sampling tube (1) is sleeved on the outside of the spiral drill bit (5). The support assembly is used to hold the soil collected by the spiral drill bit (5). A fixing plate (6) is fixedly sleeved on the outside of the guide rod (4). The top of the guide rod (4) is fixed with a rotating rod (7), the top of the sampling tube (1) is fixed with a stud (8), two nuts (9) are sleeved on the stud (8), and the stud (8) and the two nuts (9) are threaded together. The outside of the stud (8) is slidably sleeved with a carrier plate (10), the bottom of the carrier plate (10) is located between the two nuts (9), the top of the carrier plate (10) is fixed with a limiting ring (11), the limiting ring (11) is sleeved on the outside of the guide rod (4), and the limiting ring (11) is located between the fixed plate (6) and the sampling tube (1).

2. The portable soil sampler for tobacco cultivation according to claim 1, characterized in that: The guide rod (4) is equipped with a scale on its exterior.

3. A portable soil sampler for tobacco cultivation according to claim 2, characterized in that: A stop is fixed to the top of the stud (8).

4. A portable soil sampler for tobacco cultivation according to claim 1, characterized in that: A spring (12) is fixed to the outer wall of the sampling tube (1), and an end plate (13) is fixed to the other end of the spring (12). A locking rod (14) is fixed on the end plate (13). A sliding groove for sliding the locking rod (14) is provided on the sampling tube (1), and a locking groove (15) adapted to the locking rod (14) is provided on the guide rod (4).

5. A portable soil sampler for tobacco cultivation according to claim 1, characterized in that: The load-bearing component includes a transfer cylinder (16), and a handle (17) is fixed to the outer wall of the transfer cylinder (16).

6. A portable soil sampler for tobacco cultivation according to claim 5, characterized in that: The outer wall of the transfer cylinder (16) is fixed with a fixing block (18), and the fixing block (18) has an insertion hole (19), in which a rubber hammer (20) is slidably inserted.

7. A portable soil sampler for tobacco cultivation according to claim 6, characterized in that: The bottom of the rubber hammer (20) is fitted with a limiting cover (21), and the rubber hammer (20) is threadedly connected to the limiting cover (21).

Images