Sampling device for agricultural product quality detection

Abstract

The utility model relates to the field of agricultural product quality detection, and discloses a sampling device for agricultural product quality detection, which comprises a sampling barrel, a cover plate is in threaded connection with the inner wall of the bottom end of the sampling barrel, a drill bit is arranged on the lower surface of the cover plate, a sampling mechanism is arranged on the upper surface of the sampling barrel, and a supporting mechanism is arranged on the outer wall of the sampling barrel. The sampling mechanism comprises a sampling assembly and a rotating assembly, the sampling assembly comprises a rotating rod, the rotating rod is rotationally connected to the right side of the upper surface of the sampling barrel in a penetrating mode, and a sampling plate is fixedly connected to the lower surface of the rotating rod and rotationally connected to the inner wall of the right side of the bottom end of the sampling barrel. According to the soil sampling device, during sampling, the sampling barrel can be inserted into soil, then the rotating ring is rotated, then the multiple sets of sampling plates are opened through cooperation among the arranged round rod, the connecting plate and the rotating rod, at the moment, when the sampling barrel is rotated, soil can enter the inner wall of the sampling barrel along the opened sampling plates, and it is guaranteed that sampling can be successful.

Description

Technical Field

[0001] This utility model relates to the field of agricultural product quality testing, and in particular to a sampling device for agricultural product quality testing. Background Technology

[0002] The importance of agricultural product quality and safety is self-evident. As people's living standards continue to improve, the requirements for agricultural product quality are becoming increasingly stringent. Agricultural product quality testing is of great significance as a key step in ensuring the safe entry of agricultural products into the market and protecting consumer health. When conducting agricultural product quality testing, it is necessary to take samples from different depths of the soil where the agricultural products grow and from different parts of the agricultural products themselves. Only through testing experiments can the quality status of agricultural products be grasped in a timely manner. However, some soil sampling devices take out soil from different layers together and then select them, which is too troublesome.

[0003] A search revealed Chinese Patent Publication No. CN220418858U, which discloses a sampling device for agricultural product quality testing. The device includes a sampling container with sampling slots at both ends. An internal sampling mechanism is located within the container, and a positioning mechanism is located on the external side. This positioning mechanism includes a sliding disc, an annular plate, and positioning holes. The beneficial effect of this invention is that the scale allows operators to adjust the height of the sliding disc using a scale reference. When the designated testing position is reached, the positioning screws at both ends of the annular plate are tightened, inserting one end of each screw into a corresponding slot to fix the sliding disc in place. When testing agricultural product soil, the sampling container is inserted into the ground, ensuring the sliding disc is pressed against the surface, allowing for testing at a specific depth. This prevents deviation in test results and makes the testing more effective.

[0004] While the aforementioned technology can achieve precise sampling of soil from different layers through its designed structure, it uses negative pressure to sample the soil. However, some soil layers have gaps and are sticky, making it impossible to form a sealed space, resulting in unsatisfactory sampling results and low practicality. Therefore, a sampling device for agricultural product quality testing is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a sampling device for agricultural product quality testing, which aims to improve the problem of poor sampling effect in the use of some existing soil sampling devices for agricultural product quality testing.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a sampling device for agricultural product quality testing, comprising a sampling cylinder, a cover plate threadedly connected to the inner wall of the bottom end of the sampling cylinder, a drill bit provided on the lower surface of the cover plate, a sampling mechanism provided on the upper surface of the sampling cylinder, a support mechanism provided on the outer wall of the sampling cylinder, the sampling mechanism comprising a sampling component and a rotating component, the sampling component comprising a rotating rod, the rotating rod being rotatably connected through and rotatably to the right side of the upper surface of the sampling cylinder, a sampling plate being fixedly connected to the lower surface of the rotating rod, the sampling plate being rotatably connected to the inner wall of the right side of the bottom end of the sampling cylinder, a connecting plate being fixedly connected to the upper surface of the rotating rod, and the rotating component comprising a round rod, the round rod being slidably connected to the inner wall of the connecting plate.

[0007] As a further description of the above technical solution:

[0008] The support mechanism includes a sliding ring that slides on the outer wall of the sampling cylinder. Multiple sets of support plates are fixedly connected to the lower surface of the sliding ring, and support rings are fixedly connected to the lower surface of the support plates.

[0009] As a further description of the above technical solution:

[0010] The rotating assembly also includes a rotating ring, which is rotatably connected to the outer wall of the top of the sampling cylinder, and the upper surface of the round rod is rotatably connected to the lower surface of the rotating ring.

[0011] As a further description of the above technical solution:

[0012] A rod is slidably connected through the right end of the upper surface of the rotating ring, and a limiting groove is formed on the upper surface of the sampling cylinder, with the lower surface of the rod contacting the inner wall of the limiting groove.

[0013] As a further description of the above technical solution:

[0014] A spring is fitted onto the outer wall of the insertion rod. One end of the spring is fixedly connected to the lower surface of the insertion rod, and the other end of the spring is fixedly connected to the right end of the upper surface of the swivel ring.

[0015] As a further description of the above technical solution:

[0016] The support mechanism also includes a ground insertion rod, which is threaded through and connected to the upper surface of the support ring. Multiple sets of ground insertion rods are provided, and the multiple sets of ground insertion rods are arranged in a circular array with the center of the support ring as the origin.

[0017] As a further description of the above technical solution:

[0018] A bolt is threaded through the right surface of the sliding ring, and a threaded hole is opened on the top right surface of the sampling cylinder. The left end of the bolt is threaded to the inner wall of the threaded hole.

[0019] As a further description of the above technical solution:

[0020] The bottom end of the ground-inserting pole is designed to be conical.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, when taking samples, the sampling tube can be inserted into the soil, and then the rotating ring can be rotated. Subsequently, through the cooperation between the set round rod, connecting plate and rotating rod, multiple sets of sampling plates are opened. At this time, when the sampling tube is rotated, the soil will enter the inner wall of the sampling tube along the opened sampling plates, ensuring successful sampling.

[0023] 2. In this utility model, the cooperation between the sliding ring, the support plate and the support ring ensures that the sampling tube remains perpendicular to the ground during use, preventing it from tilting after being inserted into the ground and ensuring the accuracy of the sampling position. At the same time, the ground-inserting rod ensures the stability of the support. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the three-dimensional structure of the overall device in this utility model;

[0025] Figure 2 This is a split cross-sectional view of the three-dimensional structure of the sampling cylinder and drill bit in this utility model;

[0026] Figure 3 In this utility model Figure 2 An enlarged schematic diagram of the three-dimensional structure of region A;

[0027] Figure 4 In this utility model Figure 2 An enlarged schematic diagram of the three-dimensional structure of region B.

[0028] Legend:

[0029] 1. Sampling cylinder; 2. Drill bit; 31. Sampling assembly; 311. Sampling plate; 312. Rotating rod; 313. Connecting plate; 32. Rotating assembly; 321. Rotating ring; 322. Inserting rod; 323. Spring; 324. Round rod; 41. Sliding ring; 42. Support plate; 43. Support ring; 44. Grounding rod; 45. Bolt; 5. Limiting groove; 6. Cover plate. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Reference Figure 1 , Figure 3 - Figure 4 This utility model provides an embodiment of a sampling device for agricultural product quality testing, comprising a sampling cylinder 1 for sampling deep soil. A cover plate 6 is threadedly connected to the inner wall of the bottom end of the sampling cylinder 1. By opening the cover plate 6, the soil inside the sampling cylinder 1 can be easily extracted. A drill bit 2 is provided on the lower surface of the cover plate 6. The drill bit 2 is existing technology and is driven by a motor. The motor is located on the inner wall of a protective shell on its upper surface. The protective shell is installed on the lower surface of the cover plate 6 to ensure that the sampling cylinder 1 can smoothly penetrate deep into the ground. Its operation is existing technology and can be implemented by those skilled in the art. Since it is existing technology, it will not be described in detail in this case. A sampling mechanism is provided on the upper surface of the sampling cylinder 1, and a support mechanism is provided on the outer wall of the sampling cylinder 1. The sampling mechanism includes a sampling component 31 and a rotating component 32. The sampling component 31 includes a rotating rod 312 that ensures the stable rotation of the sampling plate 311. A sampling plate 311 is fixedly connected to the lower surface of the rotating rod 312, which is rotatably connected to the right side of the upper surface of the sampling cylinder 1. When the sampling cylinder 1 is deep underground, the sampling plate 311 can be rotated and opened by rotating the rotating rod 312, thus opening the bottom of the sampling cylinder 1. When the sampling cylinder 1 is rotated, the surrounding soil will enter the interior of the sampling cylinder 1 along the inclined surface of the sampling plate 311, which facilitates accurate sampling of soil from different layers. The sampling plate 311 is rotatably connected to the inner wall of the right side of the bottom end of the sampling cylinder 1. A connecting plate 313 is fixedly connected to the upper surface of the rotating rod 312. The rotating component 32 includes a round rod 324, which is slidably connected to the inner wall of the connecting plate 313. When the round rod 324 moves, it will slide on the inner wall of the connecting plate 313. Since the right end of the connecting plate 313 is fixedly connected to the rotating rod 312, the connecting plate 313 will rotate around the center of the rotating rod 312, ensuring that the sampling plate 311 can be opened smoothly.

[0032] Reference Figure 1 - Figure 2The support mechanism includes a sliding ring 41. The sampling tube 1 slides horizontally up and down and circumferentially on the inner wall of the sliding ring 41 to ensure that the sampling tube 1 can be vertically inserted into the ground and to ensure the accuracy of sampling. The sliding ring 41 slides on the outer wall of the sampling tube 1. Multiple sets of support plates 42 are fixedly connected to the lower surface of the sliding ring 41. Setting multiple sets of support plates 42 can improve the stability of the support. A support ring 43 that is in horizontal contact with the ground is fixedly connected to the lower surface of the support plate 42.

[0033] Reference Figure 2 - Figure 3 The rotating assembly 32 also includes a rotating ring 321, which slides circumferentially on the outer wall of the top end of the sampling cylinder 1. Rotation of the rotating ring 321 drives the round rod 324 to rotate stably at its eccentric point. The rotating ring 321 is rotatably connected to the outer wall of the top end of the sampling cylinder 1. The upper surface of the round rod 324 is rotatably connected to the lower surface of the rotating ring 321. A limiting rod 322 is slidably connected to the right end of the upper surface of the rotating ring 321 to limit its movement. A limiting groove 5 is formed on the upper surface of the sampling cylinder 1. The limiting groove 5 is designed with… There are two sets of limits: one set is the limit when the sampling plate 311 is closed, and the other set is the limit when the sampling plate 311 is open. The lower surface of the insertion rod 322 contacts the inner wall of the limit groove 5. A spring 323 is sleeved on the outer wall of the insertion rod 322. The spring 323 pulls the insertion rod 322 downward through its own elasticity to ensure the stability of the limit of the insertion rod 322. One end of the spring 323 is fixedly connected to the lower surface of the insertion rod 322, and the other end of the spring 323 is fixedly connected to the right end of the upper surface of the rotating ring 321.

[0034] Reference Figure 1 - Figure 2 The support mechanism also includes ground-inserting rods 44 to ensure the stability of the support ring 43. The ground-inserting rods 44 are threadedly connected to the upper surface of the support ring 43. Multiple sets of ground-inserting rods 44 are arranged in a circular array with the center of the support ring 43 as the origin. Multiple sets are arranged to ensure the stability of the sampling cylinder 1 during use. The right surface of the sliding ring 41 is threadedly connected to a bolt 45 to limit the sliding ring 41. When not in use, the sliding ring 41 can be pulled to the outer wall of the top of the sampling cylinder 1 and then fixed by the bolt 45 to reduce the space occupied and facilitate retrieval. The top right surface of the sampling cylinder 1 has a threaded hole, and the left end of the bolt 45 is threadedly connected to the inner wall of the threaded hole. The bottom end of the ground-inserting rod 44 is set in a pointed cone shape to ensure that the ground-inserting rod 44 can be smoothly inserted into the ground.

[0035] Working principle: When using the device, the sliding ring 41 can be adjusted to a suitable position as needed. When not in use, the sliding ring 41 can be pulled to the outer wall of the top of the sampling cylinder 1 and fixed with bolts 45 to reduce space occupation and facilitate retrieval. When in use, loosen the bolts 45, push the sliding ring 41 to move the support plate 42 and support ring 43, so that the support ring 43 contacts the ground. Then, rotate multiple sets of ground-inserting rods 44 in sequence to insert them into the ground, which improves stability. Then, the drill bit 2 can be started to insert the sampling cylinder 1 into the ground and stop when it reaches a specific position.

[0036] During sampling, simply pull the insertion rod 322. The insertion rod 322 will stretch the spring 323 until the insertion rod 322 disengages from the inner wall of the limiting groove 5. Then, the rotating ring 321 can be rotated. The round rod 324 will rotate at the eccentric point of the rotating ring 321. At the same time, the round rod 324 will slide on the inner wall of the connecting plate 313. The connecting plate 313 will drive the rotating rod 312 to rotate. The rotating rod 312 will drive the sampling plate 311 to rotate and penetrate into the soil at the bottom side of the sampling cylinder 1. Then, release the insertion rod 322, and the spring 323 will... 23 will use its own elasticity to pull the insertion rod 322 back to the inner wall of another set of grooves. At this time, rotate the sampling tube 1. The soil on the side of the sampling tube 1 will enter the inner wall of the bottom of the sampling tube 1 along the slope of the opened sampling plate 311, so that sampling can be carried out smoothly. After sampling is completed, rotate the rotating ring 321 in the opposite direction to close the sampling plate 311. The operation process is the same as above. Then the sampling tube 1 can be pulled out. Rotate the cover plate 6 to open it, and the soil collected inside the bottom of the sampling tube 1 can be taken out.

[0037] 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 sampling device for agricultural product quality testing, comprising a sampling cylinder (1), characterized in that: The inner wall of the bottom end of the sampling cylinder (1) is threaded with a cover plate (6). A drill bit (2) is provided on the lower surface of the cover plate (6). A sampling mechanism is provided on the upper surface of the sampling cylinder (1). A support mechanism is provided on the outer wall of the sampling cylinder (1). The sampling mechanism includes a sampling component (31) and a rotating component (32). The sampling component (31) includes a rotating rod (312). The rotating rod (312) is rotatably connected to the right side of the upper surface of the sampling cylinder (1). A sampling plate (311) is fixedly connected to the lower surface of the rotating rod (312). The sampling plate (311) is rotatably connected to the inner wall of the right side of the bottom end of the sampling cylinder (1). A connecting plate (313) is fixedly connected to the upper surface of the rotating rod (312). The rotating component (32) includes a round rod (324). The round rod (324) is slidably connected to the inner wall of the connecting plate (313).

2. The sampling device for agricultural product quality testing according to claim 1, characterized in that: The support mechanism includes a sliding ring (41) that slides on the outer wall of the sampling cylinder (1). The lower surface of the sliding ring (41) is fixedly connected to a support plate (42) in multiple sets. The lower surface of the support plate (42) is fixedly connected to a support ring (43).

3. The sampling device for agricultural product quality testing according to claim 1, characterized in that: The rotating assembly (32) also includes a rotating ring (321), which is rotatably connected to the outer wall of the top of the sampling cylinder (1), and the upper surface of the round rod (324) is rotatably connected to the lower surface of the rotating ring (321).

4. The sampling device for agricultural product quality testing according to claim 3, characterized in that: The right end of the upper surface of the rotating ring (321) is slidably connected to the insertion rod (322), and the upper surface of the sampling cylinder (1) is provided with a limiting groove (5), and the lower surface of the insertion rod (322) contacts the inner wall of the limiting groove (5).

5. The sampling device for agricultural product quality testing according to claim 4, characterized in that: A spring (323) is sleeved on the outer wall of the insertion rod (322). One end of the spring (323) is fixedly connected to the lower surface of the insertion rod (322), and the other end of the spring (323) is fixedly connected to the right end of the upper surface of the swivel ring (321).

6. The sampling device for agricultural product quality testing according to claim 2, characterized in that: The support mechanism also includes a ground insertion rod (44), which is threaded through and connected to the upper surface of the support ring (43). There are multiple sets of ground insertion rods (44), and the multiple sets of ground insertion rods (44) are arranged in a circular array with the center of the support ring (43) as the origin.

7. The sampling device for agricultural product quality testing according to claim 2, characterized in that: The right surface of the sliding ring (41) is threaded with a bolt (45), and the top right surface of the sampling cylinder (1) is provided with a threaded hole. The left end of the bolt (45) is threaded to the inner wall of the threaded hole.

8. The sampling device for agricultural product quality testing according to claim 6, characterized in that: The bottom end of the ground-inserting rod (44) is set in a pointed cone shape.

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