A wheat corn rhizosphere soil sampler

Abstract

The utility model discloses a kind of wheat corn rhizosphere soil samplers, which relates to rhizosphere soil sampling technical field.The utility model discloses a collecting pipe, the top side of the collecting pipe is fixedly connected with a gas cylinder body, the bottom side of the gas cylinder body is fixedly connected with a gas pipe, the one side of the gas pipe is formed with a blockage, the inner wall of the blockage is slidably connected with a blockage, and the top side of the blockage and the bottom side of the collecting pipe are slidably connected.The utility model is provided with the gas pipe, and a sealed air cavity is formed in the gas cylinder body, the gas pipe and the telescopic pipe, so as to store a certain amount of compressed air.After the collecting pipe is pressed into the ground to a suitable depth, the compressed air in the gas cylinder body is pressed into the telescopic pipe by the movement of the piston block, which drives the telescopic pipe to elongate, thereby pushing the blockage out to seal the bottom end of the collecting pipe, and then pulling out the device, so as to prevent the soil from sliding out of the collecting pipe during the pulling-out process, and improve the accuracy of sampling.

Description

Technical Field

[0001] This utility model relates to the field of rhizosphere soil sampling technology, specifically a rhizosphere soil sampler for wheat and corn. Background Technology

[0002] Rhizosphere soil refers to the micro-domain of soil directly affected by plant roots, including the soil 1-2 mm from active roots and the root surface and its adhering soil. It is unique in the soil system and can reflect the activity of soil, roots, and microorganisms. Rhizosphere research has become an emerging interdisciplinary branch in plant nutrition. An existing rhizosphere soil sampler based on in-situ root growth in fruit trees (publication number: CN221377109U) has revealed at least the following shortcomings in use: The above-mentioned solution allows for easy manual pushing of the device to the soil sampling point via handrails and multiple casters. The cylinder, positioning plate, and fixing cone facilitate stable manual fixation of the device to the ground. The combined use of the drive motor and lifting mechanism enables the connecting rod to rotate and move vertically, allowing the sampling tube to smoothly penetrate the soil and be easily pulled out of the ground. However, in actual use, the soil sample slips during the extraction process, causing misalignment between the soil sample and the depth marked on the collection tube, resulting in inaccurate soil condition. Therefore, a wheat and corn rhizosphere soil sampler was developed. Summary of the Invention

[0003] The main purpose of this invention is to provide a rhizosphere soil sampler for wheat and corn, which can effectively solve the problems in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A rhizosphere soil sampler for wheat and maize includes a collection tube, a gas storage cylinder fixedly connected to the top side of the collection tube, a venting pipe fixedly connected to the bottom side of the gas storage cylinder, a sealing port opened at the bottom end of the venting pipe facing the collection tube, a receiving tube disposed inside the venting pipe, a sealing ring fixedly connected to the end of the receiving tube facing away from the sealing port, a telescopic tube fixedly connected to the side of the sealing ring facing the sealing port, and a sealing block fixedly connected to the side of the telescopic tube facing the sealing port, the top side of the sealing block and the bottom side of the collection tube being slidably connected.

[0005] Preferably, a piston block is slidably connected between the inner walls of the gas storage cylinder, and a sliding rod is fixedly connected to one end of the piston block. One end of the sliding rod extends to the outside of the gas storage cylinder, and a connecting piece is fixedly connected to the outer end of the sliding rod.

[0006] Preferably, a vent is provided at the bottom of the gas storage cylinder, and the vent pipe is connected to the inside of the gas storage cylinder through the vent. Multiple inner blocking plates are fixedly connected between the inner walls of the gas storage cylinder, and one side of the inner blocking plate is flush with the corresponding side of the inner wall of the vent.

[0007] Preferably, a pressing handle is fixedly connected to the top side of the gas storage cylinder, and a set of limiting brackets is fixedly connected to one side of the pressing handle, the limiting brackets and the connecting piece being engaged.

[0008] Preferably, an observation window is provided on one side of the collecting pipe, and a discharge port is provided on the side of the collecting pipe facing away from the vent pipe. A discharge disc is rotatably connected between the inner walls of the discharge port, and a soil guide cone is fixedly connected to the bottom end of the side of the collecting pipe facing away from the vent pipe. The inner wall of the soil guide cone is flush with the inner wall of the collecting pipe.

[0009] Preferably, an air guide hopper is provided between the inner walls of the vent pipe, the bottom end of the air guide hopper extends between the side of the receiving pipe facing away from the sealing port and the corresponding side of the vent pipe, and a cooperating cone is fixedly connected to the bottom end of the vent pipe.

[0010] Compared with the prior art, the present invention has the following beneficial effects: By setting up the vent pipe, a sealed air chamber is formed inside the air storage cylinder, vent pipe, and telescopic pipe, thereby storing a certain amount of compressed air. After the collection pipe is pressed into the ground to a suitable depth, the movement of the piston block in the air storage cylinder forces the compressed air in the air storage cylinder into the telescopic pipe, causing the telescopic pipe to extend. This pushes out the sealing block to seal the bottom end of the collection pipe, and then the device is pulled out. This prevents soil from slipping out of the collection pipe during the pulling process, thus improving the accuracy of sampling. Attached Figure Description

[0011] Figure 1 This is an isometric view of the present invention; Figure 2 This is a schematic diagram of the sampling tube structure of this utility model; Figure 3 This is a schematic diagram of the sealing device of this utility model; Figure 4 This is a schematic diagram of the cylinder device structure of this utility model.

[0012] In the diagram: 101, collecting pipe; 102, observation window; 103, discharge port; 104, soil guide cone; 105, discharge rotating plate; 201, vent pipe; 202, air guide hopper; 203, sealing ring; 204, receiving pipe; 205, cooperating cone; 206, sealing block; 207, telescopic pipe; 208, sealing port; 301, air storage cylinder; 302, inner barrier plate; 303, vent; 304, piston block; 305, connecting plate; 306, sliding rod; 307, pressing handle; 308, limit bracket. Detailed Implementation

[0013] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0014] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0015] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0016] Please see Figures 1-4 This utility model provides a technical solution: A rhizosphere soil sampler for wheat and corn includes a collection tube 101, an observation window 102 on one side of the collection tube 101, and a discharge port 103 on the side of the collection tube 101 facing away from the ventilation pipe 201. A discharge flap 105 is rotatably connected to the inner wall of the discharge port 103. A soil guide cone 104 is fixedly connected to the bottom end of the side of the collection tube 101 facing away from the ventilation pipe 201, and the inner wall of the soil guide cone 104 is flush with the inner wall of the collection tube 101. In use, the soil guide cone 104 penetrates the ground and guides the soil into the collection tube 101. The observation window 102 is transparent and has graduations, which helps the operator observe the depth of the soil sample. The soil sample is extracted from the corresponding depth by opening the discharge flap 105.

[0017] A gas storage cylinder 301 is fixedly connected to the top side of the collecting pipe 101. A piston block 304 is slidably connected between the inner walls of the gas storage cylinder 301. A sliding rod 306 is fixedly connected to one end of the piston block 304. One end of the sliding rod 306 extends to the outside of the gas storage cylinder 301, and a connecting piece 305 is fixedly connected to the outer end of the sliding rod 306. A vent 303 is opened at the bottom of the gas storage cylinder 301. The vent pipe 201 communicates with the inside of the gas storage cylinder 301 through the vent 303. Multiple blocking inner pieces 302 are fixedly connected between the inner walls of the gas storage cylinder 301. One side of the blocking inner piece 302 is flush with the corresponding side of the inner wall of the vent 303. A pressing handle 307 is fixedly connected to the top side of the gas storage cylinder 301. A set of limiting brackets 308 is fixedly connected to one side of the pressing handle 307. The limiting brackets 308 and the connecting piece 305 are engaged. In this embodiment, compressed air is injected into the air storage cylinder 301. When the limiting bracket 308 and the connecting piece 305 are connected, the piston block 304 is positioned outward, allowing the air to concentrate inside the air storage cylinder 301.

[0018] A vent pipe 201 is fixedly connected to the bottom side of the air storage cylinder 301. A sealing port 208 is provided at the bottom end of the vent pipe 201 facing the collection pipe 101. A receiving pipe 204 is disposed inside the vent pipe 201. A sealing ring 203 is fixedly connected to the end of the receiving pipe 204 facing away from the sealing port 208. A telescopic pipe 207 is fixedly connected to the side of the sealing ring 203 facing the sealing port 208. A sealing block 206 is fixedly connected to the side of the telescopic pipe 207 facing the sealing port 208. The top side of the sealing block 206 is slidably connected to the bottom side of the collection pipe 101. In this embodiment, when the piston block 304 slides inward, it pushes compressed air into the telescopic pipe 207, stretching the telescopic pipe 207 and allowing the sealing block 206 to insert into the soil guide cone 104, sealing the bottom end of the collection pipe 101 and preventing the soil sample from slipping out. An air guide hopper 202 is provided between the inner walls of the vent pipe 201 and the corresponding side of the receiving pipe 204 (away from the sealing port 208), guiding compressed air into the telescopic pipe 207. A coordinating cone 205 is fixedly connected to the bottom of the vent pipe 201. The auxiliary device is inserted into the ground.

[0019] It should be noted that this utility model, as a rhizosphere soil sampler for wheat and corn, forms a sealed air chamber within the air storage cylinder 301, the air vent 201, and the telescopic tube 207 during use, thereby storing a certain amount of compressed air. After the collection tube 101 is pressed into the ground to a suitable depth, the piston block 304 moves within the air storage cylinder 301, forcing the compressed air in the air storage cylinder 301 into the telescopic tube 207, causing the telescopic tube 207 to extend. This extends the sealing block 206, sealing the bottom end of the collection tube 101. The device is then pulled out, preventing soil from slipping out of the collection tube 101 during the pulling process and improving sampling accuracy.

[0020] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended embodiments and their equivalents.

Claims

1. A rhizosphere soil sampler for wheat and maize, comprising a collection tube (101), characterized in that: A gas storage cylinder (301) is fixedly connected to the top side of the collection pipe (101). A vent pipe (201) is fixedly connected to the bottom side of the gas storage cylinder (301). A sealing port (208) is opened on the side of the bottom end of the vent pipe (201) facing the collection pipe (101). A receiving pipe (204) is provided inside the vent pipe (201). A sealing ring (203) is fixedly connected to the end of the receiving pipe (204) facing away from the sealing port (208). A telescopic pipe (207) is fixedly connected to the side of the sealing ring (203) facing the sealing port (208). A sealing block (206) is fixedly connected to the side of the telescopic pipe (207) facing the sealing port (208). The top side of the sealing block (206) and the bottom side of the collection pipe (101) are slidably connected.

2. The wheat and maize rhizosphere soil sampler according to claim 1, characterized in that: A piston block (304) is slidably connected between the inner walls of the gas storage cylinder (301). A slide rod (306) is fixedly connected to one end of the piston block (304). One end of the slide rod (306) extends to the outside of the gas storage cylinder (301), and a connecting piece (305) is fixedly connected to the outer end of the slide rod (306).

3. The wheat and maize rhizosphere soil sampler according to claim 1, characterized in that: The bottom end of the gas storage cylinder (301) is provided with a vent (303). The vent pipe (201) is connected to the inside of the gas storage cylinder (301) through the vent (303). Multiple blocking inner plates (302) are fixedly connected between the inner walls of the gas storage cylinder (301). One side of the blocking inner plate (302) is flush with the corresponding side of the inner wall of the vent (303).

4. A wheat and maize rhizosphere soil sampler according to claim 2, characterized in that: A pressing handle (307) is fixedly connected to the top side of the gas storage cylinder (301), and a set of limiting brackets (308) is fixedly connected to one side of the pressing handle (307). The limiting brackets (308) and the connecting piece (305) are engaged.

5. A wheat and maize rhizosphere soil sampler according to claim 1, characterized in that: An observation window (102) is provided on one side of the collection pipe (101). A discharge port (103) is opened on the side of the collection pipe (101) facing away from the vent pipe (201). A discharge disc (105) is rotatably connected between the inner walls of the discharge port (103). A soil guide cone (104) is fixedly connected to the bottom end of the side of the collection pipe (101) facing away from the vent pipe (201). The inner wall of the soil guide cone (104) is flush with the inner wall of the collection pipe (101).

6. A wheat and maize rhizosphere soil sampler according to claim 1, characterized in that: An air guide hopper (202) is provided between the inner walls of the vent pipe (201). The bottom end of the air guide hopper (202) extends between the side of the receiving tube (204) facing away from the sealing port (208) and the corresponding side of the vent pipe (201). A cooperating cone (205) is fixedly connected to the bottom end of the vent pipe (201).

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