Plant root sampling device

Abstract

The present invention relates to the technical field of biological sample extraction sampling devices, and specifically to a plant root sampling device. Existing root research methods are usually divided into two steps: sampling and measurement. The root system to be obtained is required to be complete, at least the main root system involved in the research purpose cannot be incomplete, and it should also maintain its original state in the soil environment without deformation, and the sampling work is required to be fast and accurate. The sampling device of the present invention includes a branch binding part, a stem binding part, and a flushing part; the stem binding part includes a binding belt and a soft cushion, and the branch binding part includes an umbrella pole and an umbrella cloth; the flushing part includes a cross frame, a leg, a conduit, and a water pipe; the water pipe includes a pipe body and a nozzle, and the nozzle includes a pointed mouth section, a middle section, a thin section, and a connecting section. The pointed mouth section is located at the front end, and the middle section includes a front shell, a middle shell, and a rear shell. The pointed mouth section is provided with a weight pipe. The present invention facilitates the flushing and excavation operations and sampling of the root system, and can collect plant roots more completely, especially for taproot plants with obvious differences in branch root diameters.

Description

Technical Field

[0001] The invention relates to the technical field of biological sample extraction and sampling devices, in particular to a plant root sampling device. Background Art

[0002] The plant body is composed of roots, stems, leaves, flowers, fruits and seeds. Cells constitute tissues, tissues constitute organs, and organs constitute the plant body. The root system is the main organ for plants to absorb nutrients and water. It is the basis for the survival of the aboveground parts. According to different plant species, it is roughly divided into taproot system and fibrous root system. The fibrous root system has an insignificant root structure, while the taproot system generally has obvious main roots growing vertically downward, lateral roots growing laterally, or horizontal roots growing horizontally. The root system of plants is deep underground, and it is difficult to observe and study it. Therefore, reasonable root sampling devices and research methods are particularly important for studying field root systems. At present, although there are many devices for root sampling and how to observe the root system, most of them are concentrated in non-field conditions. The plant root system has strong plasticity. In different growth media (such as agar, hydroponics, etc.), the morphology and function are completely different. Therefore, studying the root system under field conditions is more in line with the actual growth conditions of plants.

[0003] In my country, the long-term research on crop root systems has been different in scope, content, emphasis and effectiveness due to the characteristics of the times, cultural and technological levels, and people's cognitive abilities. In recent years, in order to grasp the true situation of plant root growth and distribution in the soil, people have developed a variety of root observation methods. Existing root research methods are usually divided into two steps: sampling and measurement. The root system must be complete, at least the main root system involved in the research purpose must not be incomplete, and it should also maintain its original state in the soil environment without deformation. The sampling work must be fast and accurate.

[0004] However, most of the sampling devices used in the current soil core drilling method are simple stainless steel soil drills, which are composed of a worm gear mechanism, a lead screw, and a sampling drill bit. Although its structure is simple, it needs to be manually rotated and pressure is applied downwards when in use, and even needs to be struck with a hammer to achieve its function of drilling soil sampling, which is time-consuming and labor-intensive, and the sampling effect is not ideal. Therefore, it is urgent to develop a new sampling device with a high degree of automation, which can reduce manpower and material resources, and at the same time reduce the labor burden of scientific researchers. Summary of the invention

[0005] The purpose of the present invention is to develop a plant root sampling device with a simple structure and certain automation functions, which can greatly reduce manpower and material resources and alleviate the labor burden of scientific researchers. The plant root samples taken are good and are conducive to the implementation of subsequent experiments.

[0006] The technical solution adopted to solve the above technical problems is:

[0007] A plant root sampling device, characterized in that:

[0008] The sampling device comprises a branch-binding part, a stem-binding part, and a flushing part;

[0009] The stem-binding part is arranged on the main stem above the plant root and below the leaves, and the stem-binding part surrounds and is detachably fixed to the stem position, and is used to build a base platform for the branch-binding part and the flushing part on the plant;

[0010] The branch-binding part is located on the upper part of the stem-binding part, and is in an inverted umbrella shape. The bottom end of the branch-binding part is hinged with the stem-binding part, and the bottom end of the branch-binding part rotates along the hinge with the stem-binding part. The branch-binding part has two states: unfolded and folded.

[0011] The flushing part is located around the stem part, and the flushing part is movably connected to the stem part, and the movably connected part includes but is not limited to any one of a buckle, a slot, a latch, a hinge, a bolt, and a quick-release locking buckle;

[0012] The stem portion includes a strap and a cushion. The strap is made of a soft material with no elastic deformation capability. Buckles are provided at both ends of the strap to enclose and lock the two ends of the strap. The cushion is made of a soft and fluffy material with elastic deformation capability.

[0013] The soft pad is fixedly lined on the inner wall of the strap, and the upper edge and the lower edge of the soft pad protrude from the upper edge and the lower edge of the strap respectively;

[0014] A hinged connection piece is provided on the upper part of the outer wall of the tie belt, and the hinged connection piece is used to connect the branch binding part, and the hinged connection piece is hinged to the bottom end of the branch binding part;

[0015] A detachable connecting piece is provided at the middle or lower part of the outer wall of the strap, and the detachable connecting piece is used to connect the flushing part, and the detachable connecting piece is detachably connected to the flushing part;

[0016] The branch binding part includes an umbrella pole and an umbrella cloth; there are multiple umbrella poles, the bottom ends of which are hinged to the hinged connector on the harness, and the top ends are provided with a ring; the umbrella cloth is arranged between two adjacent umbrella poles, and the umbrella cloth is made of a soft cloth material; the umbrella pole is provided with a tightening rope, which passes through the ring at the top end of the umbrella pole in turn, and the two ends of the tightening rope are movably connected;

[0017] The flushing part includes a horizontal frame, a leg, a conduit, and a water pipe; the horizontal frame is arranged horizontally, one end of the horizontal frame is provided with a detachable connector matching the detachable connector of the upper strap of the stem bundle part, and the other end of the horizontal frame is fixedly connected to the leg, and the leg is inclined outward;

[0018] The cross frame is provided with at least three conduits, each of which is movably connected to the cross frame by a ball joint structure;

[0019] The conduit includes an inlet end and an outlet end. The inlet end is located above the horizontal frame and is bent outward. The outlet end is located below the horizontal frame and has a curvature that tends to extend in a specific direction. The outlet ends of multiple conduits can be arranged in a fan shape.

[0020] The conduit is hollow, made of rigid material, and the inner diameter of the conduit is larger than the outer diameter of the water pipe;

[0021] When there are three conduits, the three conduits are respectively a flat root conduit, a lateral root conduit, and a main root conduit. The outlet end of the flat root conduit extends horizontally outwards, corresponding to the horizontal roots of the plant, the outlet end of the lateral root conduit extends downwards and tilts outwards, corresponding to the lateral roots of the plant, and the outlet end of the main root conduit extends vertically downwards, corresponding to the main root of the plant.

[0022] The water pipe comprises a pipe body and a nozzle. The pipe body is made of a bendable and tough material. The end of the pipe body away from the flushing part is connected to an external water source, and the end of the pipe body close to the flushing part is connected to the nozzle.

[0023] The nozzle includes a pointed nozzle section, a middle section, a thin section, and a connecting section. The pointed nozzle section is located at the front end, and the rear part of the pointed nozzle section is connected to the middle section, the thin section, and the connecting section in sequence. The connecting section is used for assembly and connection with the water pipe body.

[0024] The pointed mouth section, the middle section, the thin section and the connecting section are all hollow, and the pointed mouth section has a nozzle structure for spraying water.

[0025] The middle section includes a front shell, a middle shell and a rear shell. The front shell is a forward conical surface, and the front shell is fixedly connected or integrated with the rear end of the tip section; the rear shell is a backward conical surface, and the rear shell is fixedly connected or integrated with the thin section; the middle shell is the part where the front shell and the rear shell are threadedly connected; the conical surface of the front shell is provided with a plurality of water spray holes;

[0026] The pointed mouth section is provided with a component pipe, the front end of the component pipe is fixedly connected or integrated with the rear end of the pointed mouth section, the rear end of the component pipe extends backward, and there is a gap between the rear end of the component pipe and the rear shell of the middle section.

[0027] The stem portion is provided with a slide rail, which surrounds the outer wall of the strap, and the two ends of the slide rail are respectively aligned with the two edges of the strap, and plugs are provided at both ends of the slide rail;

[0028] The detachable connecting piece on the strap of the stem portion is provided with a sliding block, and the detachable connecting piece on the strap is assembled and connected with the slide rail via the sliding block.

[0029] The beneficial effects of the present invention are: the main stem and branches above the main stem of the plant are fixed or gathered by using the stem-binding part and the branch-binding part, which can provide a support platform for the root flushing device and facilitate the flushing and digging operations of the root system, and can also protect the plant to prevent damage to the plant during the sampling process and affect the subsequent experimental operation. The present invention uses water flow to flush, dig and sample the plant root system, and can collect the plant root system more completely, especially for taproot plants with obvious differences in branch root diameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The attached pictures are as follows:

[0031] Figure 1 1 is a schematic diagram of the structure of the sampling device according to the first embodiment of the present invention, in which the flushing part is in a disassembled state and the bundle branch part is in an unfolded state;

[0032] Figure 2 1 is a schematic diagram of the structure of the sampling device according to the first embodiment of the present invention, in which the flushing part is in an assembled state and the branch binding part is in a folded state;

[0033] Figure 3 is a schematic structural diagram of the stem bundle portion according to the first embodiment of the present invention;

[0034] Figure 4 is a schematic cross-sectional structural diagram of the stem portion of the first embodiment of the present invention;

[0035] Figure 5 is a schematic structural diagram of the flushing portion according to the first embodiment of the present invention;

[0036] Figure 6 is a schematic diagram of the structure of the conduit and the water pipe according to the first embodiment of the present invention;

[0037] Figure 7 is a schematic structural diagram of the nozzle according to the first embodiment of the present invention;

[0038] Figure 8 is a schematic diagram of the structure of the nozzle according to the second embodiment of the present invention;

[0039] Fig. 9 It is a schematic structural diagram of the stem portion and the slide rail described in the third embodiment of the present invention.

[0040] in:

[0041] 10 plant 11 branch 12 main stem 13 horizontal root 14 lateral root 15 taproot

[0042] 20 branch binding part 21 umbrella pole 22 umbrella cloth 23 ring 24 tightening rope

[0043] 30 stem portion 31 strap 32 cushion 33 buckle 34 hinged connector 35 detachable connector 36 slide rail 37 slider

[0044] 40 flushing part 41 cross frame 42 ball joint structure 43 leg 44 conduit 45 water pipe 46 inlet end 47 outlet end 48 pipe body

[0045] 50 nozzle 51 nozzle section 52 middle section 521 front shell 522 middle shell 523 rear shell 53 thin section 54 connecting section

[0046] 55 water spray holes and 56 component pipes. DETAILED DESCRIPTION

[0047] Embodiment 1:

[0048] like Figure 1 , 2 As shown, the plant root sampling device described in this embodiment is characterized by:

[0049] The sampling device comprises a branch-binding part, a stem-binding part, and a flushing part;

[0050] The stem-binding part is arranged on the main stem above the plant root and below the leaves, and the stem-binding part surrounds and is detachably fixed to the stem position, and is used to build a base platform for the branch-binding part and the flushing part on the plant;

[0051] The branch-binding part is located on the upper part of the stem-binding part, and is in an inverted umbrella shape. The bottom end of the branch-binding part is hinged with the stem-binding part, and the bottom end of the branch-binding part rotates along the hinge with the stem-binding part. The branch-binding part has two states: unfolded and folded.

[0052] The flushing part is located around the stem part, and the flushing part is movably connected to the stem part, and the movably connected part includes but is not limited to any one of a buckle, a slot, a latch, a hinge, a bolt, and a quick-release locking buckle; the above-mentioned movably connected part between the flushing part and the stem part refers to a detachable device for assembling the flushing part on the stem part, such as the above-mentioned buckle, quick-release locking buckle, etc. The movably connected detachable device enables the flushing part to be conveniently and quickly assembled to the stem part, or detached from it. Regarding the specific structure of the detachable device, reference can be made to the structure of the commercially available bicycle seat tube (seat post) quick-release clamp, and it can also be improved on this basis through matching by conventional means to achieve a quick-release connection between the flushing part and the stem part. There are a lot of prior arts for the details of the above-mentioned specific technical solution, which will not be repeated here.

[0053] like Figure 3 , 4As shown, the stem portion includes a strap and a cushion. The strap is made of a soft material with no elastic deformation capability. Buckles are provided at both ends of the strap to enclose and lock the two ends of the strap. The cushion is made of a soft and fluffy material with elastic deformation capability.

[0054] The soft pad is fixedly lined on the inner wall of the strap, and the upper edge and the lower edge of the soft pad protrude from the upper edge and the lower edge of the strap respectively;

[0055] A hinged connection piece is provided on the upper part of the outer wall of the tie belt, and the hinged connection piece is used to connect the branch binding part, and the hinged connection piece is hinged to the bottom end of the branch binding part;

[0056] A detachable connecting piece is provided at the middle or lower part of the outer wall of the strap, and the detachable connecting piece is used to connect the flushing part, and the detachable connecting piece is detachably connected to the flushing part;

[0057] It should be noted that the stem binding part is used to fix the plants and provide a support platform for other parts. The types of plants fixed by it, the sizes of plants and the thickness of plants are not the same. Therefore, the straps on the stem binding part and the cushions can be fixedly connected, that is, the cushions are fixed inside the straps and do not move, or the cushions can be movably assembled and connected to the straps in the form of tracks or the like. When in use, the cushions can be adjusted according to the size of the plants to achieve a stable fixation. Furthermore, the cushions can also be set in the form of air cushions. First, the straps are wrapped around the main stems of the plants, and then the air cushions are inflated so that the stem binding part firmly binds the plants for subsequent operations. As for the specific structure of the tracks, air cushions and other components, any existing known technology can be used and will not be elaborated.

[0058] The branch binding part includes an umbrella pole and an umbrella cloth; there are multiple umbrella poles, the bottom ends of which are hinged to the hinged connector on the harness, and the top ends are provided with a ring; the umbrella cloth is arranged between two adjacent umbrella poles, and the umbrella cloth is made of a soft cloth material; the umbrella pole is provided with a tightening rope, which passes through the ring at the top end of the umbrella pole in turn, and the two ends of the tightening rope are movably connected;

[0059] The branch binding part has two states: unfolded and folded. When the branch binding part is unfolded, the tightening rope is extended, the umbrella pole rotates around the hinged connector and unfolds outward, and the umbrella cloth between the umbrella poles is also stretched between the umbrella poles. The branch binding part is used to gather branches, twigs, leaves, etc. above the main stem of the plant to facilitate the operation of the flushing part; therefore, the preferred solution of the branch binding part is that the branch binding part is in an inverted umbrella shape with an opening at the top, and the umbrella pole rotates from top to bottom by no more than 90 degrees. At this time, the umbrella cloth between the umbrella poles is at the maximum unfolding degree, that is, the unfolded umbrella-shaped branch binding part is a cone with a low middle and high sides, which is conducive to carrying plant branches and twigs and convenient for the folding operation of the branch binding part. When the branch binding part is folded and folded, the tightening rope is stored to gather the top of the umbrella pole, so that the plant branches and twigs can be gathered upward into a smaller cone space. At this time, the bottom of the branch binding part and both sides of the stem binding part have a large activity space to facilitate the operation of the flushing part.

[0060] like Figure 5 , 6 As shown, the flushing part includes a horizontal frame, a leg, a conduit, and a water pipe; the horizontal frame is arranged horizontally, one end of the horizontal frame is provided with a detachable connecting piece matching the detachable connecting piece of the strap on the stem portion, and the other end of the horizontal frame is fixedly connected to the leg, and the leg is inclined outward;

[0061] The cross frame is provided with at least three conduits, each of which is movably connected to the cross frame by a ball joint structure; the ball joint connection structure refers to a movable connection structure that enables the conduit to move freely (rotate) within a certain range on the cross frame, such as patent documents CN104145151B, CN1242238C, CN202972449U, etc. disclose the same or similar technical solutions, which can be referred to to implement the functions described in this embodiment. Specifically, the ball joint structure between the conduit and the cross frame described in this embodiment is composed of a spherical surface of the outer wall of the conduit, a hole on the cross frame that is adapted to the conduit, and a spherical seat in the hole, etc., which can realize the conduit to swing around the ball joint within a certain range on the cross frame to adjust the direction of the conduit, that is, to adjust the direction of the water flow ejected from the conduit through the water pipe, so as to flush the plant root system.

[0062] The conduit includes an inlet end and an outlet end. The inlet end is located above the horizontal frame and is bent outward. The outlet end is located below the horizontal frame and has a curvature that tends to extend in a specific direction. The outlet ends of multiple conduits can be arranged in a fan shape.

[0063] The conduit is hollow, made of rigid material, and the inner diameter of the conduit is larger than the outer diameter of the water pipe;

[0064] When there are three conduits, the three conduits are respectively a flat root conduit, a lateral root conduit, and a main root conduit. The outlet end of the flat root conduit extends horizontally outwards, corresponding to the horizontal roots of the plant, the outlet end of the lateral root conduit extends downwards and tilts outwards, corresponding to the lateral roots of the plant, and the outlet end of the main root conduit extends vertically downwards, corresponding to the main root of the plant.

[0065] The inlet end of the conduit is bent outward to avoid interference between adjacent conduits when they are freely swinging. Within the permitted range, the inlet ends of each conduit can be as far apart as possible to avoid interference. The outlet end of the conduit has a curvature that tends to extend in a specific direction, which refers to the horizontal roots, lateral roots, main roots, etc. that mainly point to the plant root system. Of course, depending on the different plant root systems, the outlet end of the conduit can be further set to be detachable, and outlet ends with various curvatures and specifications can be designed to facilitate the use of different types of outlet end conduits according to the root system.

[0066] like Figure 7As shown, the water pipe includes a pipe body and a nozzle. The pipe body is made of a bendable and tough material. The end of the pipe body away from the flushing part is connected to an external water source, and the end of the pipe body close to the flushing part is connected to the nozzle.

[0067] The nozzle includes a pointed nozzle section, a middle section, a thin section, and a connecting section. The pointed nozzle section is located at the front end, and the rear part of the pointed nozzle section is connected to the middle section, the thin section, and the connecting section in sequence. The connecting section is used for assembly and connection with the water pipe body.

[0068] The pointed mouth section, the middle section, the thin section and the connecting section are all hollow, and the pointed mouth section has a nozzle structure for spraying water.

[0069] Embodiment 2:

[0070] Furthermore, if Figure 8 As shown, based on the above embodiment, the middle section of this embodiment includes a front shell, a middle shell and a rear shell, the front shell presents a forward conical surface, and the front shell is fixedly connected or integrated with the rear end of the tip section; the rear shell presents a backward conical surface, and the rear shell is fixedly connected or integrated with the thin section; the middle shell is the part where the front shell and the rear shell are threadedly connected; the conical surface of the front shell is provided with a plurality of water spray holes;

[0071] The pointed mouth section is provided with a component pipe, the front end of the component pipe is fixedly connected or integrated with the rear end of the pointed mouth section, the rear end of the component pipe extends backward, and there is a gap between the rear end of the component pipe and the rear shell of the middle section.

[0072] The front shell and the rear shell are connected by a threaded connection, so that the distance between the front shell and the pointed nozzle section and other parts of the sprinkler can be achieved. At the same time, the gap between the component pipe and the rear shell can be adjusted, thereby adjusting the amount of water flowing through the component pipe inside and outside, that is, the amount of water ejected through the pointed nozzle section and the water spray hole of the front shell respectively, so as to flush the extension direction of the plant roots and the soil and other attachments around the extension direction, so as to facilitate more complete excavation of the plant root system.

[0073] Embodiment three:

[0074] Furthermore, if Fig. 9 As shown, based on the above embodiment, the stem portion of this embodiment is provided with a slide rail, which surrounds the outer wall of the strap, and the two ends of the slide rail are respectively aligned with the two edges of the strap, and plugs are provided at both ends of the slide rail. The flushing portion and the stem portion are assembled and connected by a detachable connector. When the above slide rail scheme is adopted, the detachable connector provided on the strap of the stem portion is provided with a slider, that is, the detachable connector on the strap is assembled and connected with the slide rail through the slider, so that the detachable connector and the flushing portion can slide along the slide rail to adjust the flushing position.

[0075] Embodiment 4:

[0076] Furthermore, on the basis of the above-mentioned embodiment, the nozzle described in this embodiment is provided with a camera, which is arranged in the connection section of the nozzle, and the side of the connection section connected to the thin section has a cone surface, and 1-3 cameras are arranged along the cone surface to collect the real image information of the nozzle's forward direction. The data line and / or power line of the camera can be combined with the water pipe. After extending along the water pipe, the above-mentioned cables can be electrically connected to the corresponding power supply, image processing equipment and other devices to realize the image processing function. The above-mentioned technical scheme can refer to the public contents of patent documents CN208784800U, CN208725954U, CN202051686U, etc., and will not be repeated here.

[0077] Finally, it should be noted that the above specific implementation methods are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to examples, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A plant root sampling device, characterized in that: The sampling device comprises a branch-binding part, a stem-binding part, and a flushing part; The stem-binding part is arranged on the main stem above the plant root and below the leaves, and the stem-binding part surrounds and is detachably fixed to the stem position, and is used to build a base platform for the branch-binding part and the flushing part on the plant; The branch-binding part is located on the upper part of the stem-binding part, and is in an inverted umbrella shape. The bottom end of the branch-binding part is hinged with the stem-binding part, and the bottom end of the branch-binding part rotates along the hinge with the stem-binding part. The branch-binding part has two states: unfolded and folded. The flushing part is located around the stem part, and the flushing part is movably connected to the stem part, and the movably connected part adopts any one of a buckle, a slot, a latch, a hinge, a bolt, and a quick-release locking buckle; The stem portion includes a strap and a cushion. The strap is made of a soft material with no elastic deformation capability. Buckles are provided at both ends of the strap to enclose and lock the two ends of the strap. The cushion is made of a soft and fluffy material with elastic deformation capability. The soft pad is fixedly lined on the inner wall of the strap, and the upper edge and the lower edge of the soft pad protrude from the upper edge and the lower edge of the strap respectively; A hinged connection piece is provided on the upper part of the outer wall of the tie belt, and the hinged connection piece is used to connect the branch binding part, and the hinged connection piece is hinged to the bottom end of the branch binding part; A detachable connecting piece is provided at the middle or lower part of the outer wall of the strap, and the detachable connecting piece is used to connect the flushing part, and the detachable connecting piece is detachably connected to the flushing part; The branch binding part includes an umbrella pole and an umbrella cloth; there are multiple umbrella poles, the bottom ends of which are hinged to the hinged connector on the harness, and the top ends are provided with a ring; the umbrella cloth is arranged between two adjacent umbrella poles, and the umbrella cloth is made of a soft cloth material; the umbrella pole is provided with a tightening rope, which passes through the ring at the top end of the umbrella pole in turn, and the two ends of the tightening rope are movably connected; The flushing part includes a horizontal frame, a leg, a conduit, and a water pipe; the horizontal frame is arranged horizontally, one end of the horizontal frame is provided with a detachable connector matching the detachable connector of the upper strap of the stem bundle part, and the other end of the horizontal frame is fixedly connected to the leg, and the leg is inclined outward; The cross frame is provided with at least three conduits, each of which is movably connected to the cross frame by a ball joint structure; The conduit includes an inlet end and an outlet end. The inlet end is located above the horizontal frame and is bent outward. The outlet end is located below the horizontal frame and has a curvature that tends to extend toward the plant root system. The outlet ends of multiple conduits can be arranged in a fan shape. The conduit is hollow, made of rigid material, and the inner diameter of the conduit is larger than the outer diameter of the water pipe; When there are three conduits, the three conduits are respectively a flat root conduit, a lateral root conduit, and a main root conduit. The outlet end of the flat root conduit extends horizontally outwards, corresponding to the horizontal roots of the plant, the outlet end of the lateral root conduit extends downwards and tilts outwards, corresponding to the lateral roots of the plant, and the outlet end of the main root conduit extends vertically downwards, corresponding to the main root of the plant. The water pipe comprises a pipe body and a nozzle. The pipe body is made of a bendable and tough material. The end of the pipe body away from the flushing part is connected to an external water source, and the end of the pipe body close to the flushing part is connected to the nozzle. The nozzle includes a pointed nozzle section, a middle section, a thin section, and a connecting section. The pointed nozzle section is located at the front end, and the rear part of the pointed nozzle section is connected to the middle section, the thin section, and the connecting section in sequence. The connecting section is used for assembly and connection with the water pipe body. The pointed mouth section, the middle section, the thin section and the connecting section are all hollow, and the pointed mouth section has a nozzle structure for spraying water; The nozzle is provided with a camera, which is arranged at the connecting section of the nozzle.

2. A plant root sampling device according to claim 1, characterized in that: The middle section includes a front shell, a middle shell and a rear shell. The front shell is a forward conical surface, and the front shell is fixedly connected or integrated with the rear end of the tip section; the rear shell is a backward conical surface, and the rear shell is fixedly connected or integrated with the thin section; the middle shell is the part where the front shell and the rear shell are threadedly connected; the conical surface of the front shell is provided with a plurality of water spray holes; The pointed mouth section is provided with a component pipe, the front end of the component pipe is fixedly connected or integrated with the rear end of the pointed mouth section, the rear end of the component pipe extends backward, and there is a gap between the rear end of the component pipe and the rear shell of the middle section.

3. A plant root sampling device according to claim 1 or 2, characterized in that: The stem portion is provided with a slide rail, which surrounds the outer wall of the strap, and the two ends of the slide rail are respectively aligned with the two edges of the strap, and plugs are provided at both ends of the slide rail; The detachable connecting piece on the strap of the stem portion is provided with a sliding block, and the detachable connecting piece on the strap is assembled and connected with the slide rail via the sliding block.

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