A collection device for soil biodiversity survey and assessment

Abstract

The present invention belongs to the technical field of auxiliary equipment for biodiversity assessment, and specifically relates to a collection device for soil biodiversity survey and assessment, comprising an upper support, a connecting seat, a transmission member, a sampling end, and a collection barrel disposed between the connecting seat and the sampling end and connected to the internal space of the sampling end, wherein an extrusion ring is sleeved on the collection barrel; wherein the collection barrel comprises a barrel wall and a plurality of abutment members disposed on the outer circumference of the barrel wall, and the extrusion ring is provided with protrusions at positions corresponding to the abutment members; the abutment members comprise a U-shaped support disposed on the outer circumference of the barrel wall, an abutment block movably disposed within the U-shaped support, a connecting plate connected to the bottom surface of the abutment block, and a top plate disposed at the end of the connecting plate; by arranging the extrusion ring and the abutment members on the collection barrel, the present invention can sequentially eject a soil sample, insert an injection needle, and inject a fertilizer solution into the soil sample when the extrusion ring is quickly pulled, thereby effectively preventing the inactivation of microorganisms in the soil sample after sampling.

Description

Technical Field

[0001] The invention belongs to the technical field of auxiliary equipment for biodiversity assessment, and in particular relates to a collection device for soil biodiversity investigation and assessment. Background Art

[0002] Soil microorganisms play a crucial role in promoting soil quality and plant health. The structure and compositional diversity of soil microbial communities, as well as their changes, reflect soil quality to a certain extent. To better understand soil health, it is crucial to develop effective methods to study the diversity, distribution, and behavior of soil microorganisms. This review reviews recent methods for measuring the structural and functional diversity of contaminated soil microbial communities, both domestically and internationally, including biochemical and molecular biological techniques. The first step in these methods is soil sampling, making soil collection equipment essential.

[0003] After using the existing collection device to sample soil microorganisms, it was found that the existing collection device has the following defects:

[0004] (1) Since the research on microbial communities requires that microorganisms have a certain degree of activity, the existing collection device will quickly lose water and nutrients in the soil after sampling, resulting in rapid inactivation of microorganisms, which greatly reduces the accuracy of research results;

[0005] (2) When sampling hard soil, the existing collection device can achieve drilling sampling, but it is not easy to remove the hard soil from the sampler after sampling. The sample soil needs the assistance of equipment to be removed, which is more cumbersome to use. Summary of the Invention

[0006] The purpose of the present invention is to provide a collection device for soil biodiversity survey and assessment to solve the problems raised in the background technology.

[0007] The present invention achieves the above-mentioned purpose through the following technical solutions:

[0008] A collection device for soil biodiversity survey and assessment includes an upper support, a connecting seat, a transmission member, a sampling end, and a collection tube disposed between the connecting seat and the sampling end and connected to the inner space of the sampling end, wherein an extrusion ring is sleeved on the collection tube;

[0009] The collecting cylinder includes a cylinder wall and a plurality of abutment members provided on the outer peripheral surface of the cylinder wall, and the extrusion ring is provided with a protrusion corresponding to the position of the abutment members;

[0010] The abutment member includes a U-shaped support arranged on the outer periphery of the cylinder wall, an abutment block movably arranged in the U-shaped support, a connecting plate connected to the bottom surface of the abutment block, and a top plate arranged at the end of the connecting plate; the connecting plate passes through the U-shaped support and the cylinder wall and faces the collecting cylinder, and the part of the connecting plate located in the U-shaped support is sleeved with a spring member.

[0011] As a further optimization solution of the present invention, a motor is provided in the connecting seat, and the motor output shaft is rigidly connected to the upper end of the transmission member, which is specifically a "convex" frame member, and the collecting cylinder is located in the cover space of the transmission member.

[0012] As a further optimization scheme of the present invention, the sampling end includes a hollow drill bit connected to the internal space of the collecting tube, a connecting piece provided at the upper end of the hollow drill bit, and a threaded portion provided at the outer periphery of the connecting piece, and a spiral blade is provided inside the hollow drill bit; the lower end of the collecting tube is rotatably connected to the upper end surface of the connecting piece, and the sampling end is detachably connected to the transmission piece through the threaded portion.

[0013] As a further optimized solution of the present invention, the upper support includes a liquid storage tank, a refrigeration plate arranged on the side of the liquid storage tank, and a handle for assisting handheld sampling.

[0014] As a further optimized solution of the present invention, a liquid storage cavity communicating with the liquid storage tank is provided in the connecting seat, and an outer end of the liquid storage cavity is provided with a liquid injection pipe communicating with the liquid storage cavity;

[0015] A liquid channel is provided in the cylinder wall, and a liquid injection hole is provided at the outer end of the cylinder wall and is connected to the liquid channel;

[0016] Before the collection device is put into operation, the injection tube is connected to the injection jack to inject liquid into the liquid channel. After the injection is completed, the connection between the injection tube and the injection jack is disconnected.

[0017] As a further optimization scheme of the present invention, the abutment member also includes an abutment rod that movably passes through the abutment block, and the end of the abutment rod away from the cylinder wall protrudes from the upper surface of the abutment block. A liquid injection cavity connected to the liquid channel is opened in the connecting plate, and a piston plate is movably provided in the liquid injection cavity. The piston plate is fixedly connected to the abutment rod near the end of the abutment block, and the end face of the top plate near the collecting cylinder is provided with an injection needle connected to the liquid injection cavity.

[0018] As a further optimization solution of the present invention, the top plate is in an arc shape that fits the cylinder wall, and the injection needle is facing the center of the arc surface of the top plate.

[0019] As a further optimization solution of the present invention, the extrusion ring further includes a soft ring sleeve and an anti-slip portion provided on the outer periphery of the soft ring sleeve.

[0020] The beneficial effects of the present invention are:

[0021] 1) In the present invention, a transmission member is provided between the connecting base and the sampling end, thereby realizing mechanical transmission between the motor and the sampling end; the convex frame member is designed to leave space for the staff to move the extrusion ring up and down after completing the sampling;

[0022] 2) In the present invention, by arranging an extrusion ring and an abutment member on the collecting tube, when the extrusion ring is quickly pulled, the soil sample can be ejected, the injection needle can be inserted, and the fertilizer solution can be injected into the soil sample, which can effectively prevent the inactivation of the microorganisms in the soil sample after sampling. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the structure of the connection between the connecting seat, the transmission member, the collecting tube and the sampling end in the present invention;

[0025] Figure 3 It is a schematic structural diagram of the extrusion ring in the present invention;

[0026] Figure 4 It is a structural schematic diagram of the sampling end and the collecting tube in the present invention;

[0027] Figure 5 It is a top view of the collecting cylinder of the present invention;

[0028] Figure 6 It is an enlarged structural schematic diagram of the abutment member of the present invention;

[0029] Figure 7 It is a schematic structural diagram of the spiral blades in the hollow drill bit of the present invention.

[0030] In the figure: 1. upper support; 2. connecting seat; 3. transmission member; 4. sampling end; 5. collecting tube; 6. extrusion ring; 11. refrigeration plate; 12. handle; 21. shell; 22. motor; 23. liquid storage chamber; 24. injection tube; 41. hollow drill bit; 42. connecting member; 43. threaded portion; 51. abutment; 52. cylinder wall; 53. injection jack; 61. ring sleeve; 62. anti-slip portion; 63. protrusion; 411. spiral blade; 511. U-shaped support; 512. abutment block; 513. connecting plate; 514. top plate; 515. spring member; 516. injection chamber; 517. piston plate; 518. abutment rod; 519. injection needle. DETAILED DESCRIPTION

[0031] The present invention is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present invention and cannot be understood as limiting the scope of protection of the present invention. Those skilled in the art can make some non-essential improvements and adjustments to the present invention based on the above invention content.

[0032] Example 1

[0033] like Figure 1 As shown, the present invention provides a collection device for soil biodiversity survey and assessment, comprising an upper support 1, a connecting base 2, a transmission member 3, a sampling end 4, and a collecting tube 5 disposed between the connecting base 2 and the sampling end 4 and communicating with the internal space of the sampling end 4. The collecting tube 5 is sleeved with an extrusion ring 6; wherein the collecting tube 5 includes a tube wall 52 and a plurality of abutment members 51 disposed on the outer circumference of the tube wall 52, and the extrusion ring 6 is provided with a protrusion 63 at a position corresponding to the abutment members 51.

[0034] Combine Figure 2-4 In the present invention, the sampling end 4 is driven to rotate by the transmission member 3 to achieve drilling sampling. Since the collecting tube 5 is connected to the internal space of the sampling end 4, the soil sample will continuously enter the collecting tube 5 during the drilling sampling process until the sampling is completed. In order to facilitate the staff to identify the completion of the collection of soil samples, a window can be opened on the surface of the collecting tube 5 near the upper support 1 to assist in observing the amount of soil collected in the collecting tube 5.

[0035] Combine Figure 5 and 6 The abutment 51 includes a U-shaped support 511 arranged on the outer periphery of the cylinder wall 52, an abutment block 512 movably arranged in the U-shaped support 511, a connecting plate 513 connected to the bottom surface of the abutment block 512, and a top plate 514 arranged at the end of the connecting plate 513; the connecting plate 513 passes through the U-shaped support 511 and the cylinder wall 52 and faces the collecting cylinder 5, and the part of the connecting plate 513 located in the U-shaped support 511 is sleeved with a spring member 515.

[0036] Combine Figure 1 and Figure 6 In the present invention, after completing the sampling, the staff holds the squeezing ring 6 and pulls it downward along the collecting tube 5, so that the protrusion 63 quickly squeezes the abutment block 512. During this process, the abutment block 512 quickly moves along the U-shaped support 511, and at the same time compresses the spring member 515. The connecting plate 513 quickly drives the top plate 514 to move, and the top plate 514 quickly pushes the soil sample in the collecting tube 5, so that the soil sample and the inner wall of the collecting tube 5 are separated. That is, during the process of the squeezing ring 6 being quickly pulled down and reset, the top plate 514 makes a small reciprocating ejection and reset action.

[0037] Combine Figure 2A motor 22 is provided in the connecting seat 2, and the output shaft of the motor 22 is rigidly connected to the upper end of the transmission member 3. The transmission member 3 is specifically a "convex" frame member, and the collecting tube 5 is located in the cover space of the transmission member 3.

[0038] In the present invention, the transmission member 3 is provided for the following functions: mechanical transmission between the motor 22 and the sampling end 4; the "convex" frame member is shaped to leave space for the staff to move the extrusion ring 6 up and down after completing the sampling.

[0039] In order to further facilitate the disassembly of the sampling end 4 and the transmission member 3 after the sampling is completed, the sampling end 4 includes a hollow drill bit 41 connected to the internal space of the collecting tube 5, a connecting member 42 provided at the upper end of the hollow drill bit 41, and a threaded portion 43 provided on the outer periphery of the connecting member 42. A spiral blade 41 is provided on the inner side of the hollow drill bit 41, and the lower end of the collecting tube 5 is rotatably connected to the upper end surface of the connecting member 42. The sampling end 4 is detachably connected to the transmission member 3 through the threaded portion 43.

[0040] Combine Figure 7 A spiral blade 41 is provided inside the hollow drill bit 41. When the hollow drill bit 41 rotates, the internal spiral blade 41 can not only take the soil but also transmit it to the collecting cylinder 5 at the upper end.

[0041] Combine Figure 1 The upper support 1 includes a liquid storage tank, a cooling plate 11 provided on the side of the liquid storage tank, and a handle 12 for assisting handheld sampling; wherein, an aqueous solution of a water-soluble microbial fertilizer can be introduced into the liquid storage tank so that the solution enters the soil sample to prevent the inactivation of the microbial community from affecting the evaluation results of the soil microorganisms; the setting of the cooling plate 11 can cool the solution to prevent the motor 22 from being overheated when the collection device is running for a long time, resulting in a high temperature of the aqueous solution.

[0042] Combine Figure 2 A liquid storage chamber 23 communicating with the liquid storage tank is provided in the connecting seat 2, and a liquid injection tube 24 communicating with the liquid storage chamber 23 is provided at the outer end thereof; a liquid channel is provided in the cylinder wall 52, and a liquid injection hole 53 communicating with the liquid channel is provided at the outer end of the cylinder wall 52; before the collection device is working, the liquid injection tube 24 is connected to the liquid injection hole 53 to inject liquid into the liquid channel, and the connection between the liquid injection tube 24 and the liquid injection hole 53 is disconnected after the injection is completed.

[0043] Among them, the upper end of the transmission member 3 is provided with a through groove for the liquid injection tube 24 to pass through before the collection device works, so as to facilitate the injection of liquid into the liquid channel.

[0044] Combine Figure 5 and Figure 6The abutment 51 also includes an abutment rod 518 that movably passes through the abutment block 512, and the end of the abutment rod 518 away from the cylinder wall 52 protrudes from the upper surface of the abutment block 512. A liquid injection chamber 516 connected to the liquid channel is opened in the connecting plate 513, and a piston plate 517 is movably provided in the liquid injection chamber 516. The piston plate 517 is fixedly connected to the abutment rod 518 near the end of the abutment block 512, and an injection needle 519 connected to the injection chamber 516 is provided on the end surface of the top plate 514 near the collecting cylinder 5; the top plate 514 is in an arc shape that fits the cylinder wall 52, and the injection needle 519 is facing the center of the arc surface of the top plate 514.

[0045] In the present invention, when the extrusion ring 6 is pulled, the Figure 6 The shape and position of the abutment block 512 and the abutment rod 518, there are two actions in the process of the protrusion 63 quickly colliding with the abutment member 51, one of which is: the protrusion 63 will first squeeze the abutment block 512, and in this process, the abutment block 512 drives the top plate 514 to complete a small-amplitude ejection operation of the soil sample, and the end surface of the top plate 514 near the collection tube 5 is provided with an injection needle 519 connected to the injection cavity 516, which will enable the injection needle 519 to be quickly inserted into the soil sample, and this process realizes the ejection of the soil sample and the insertion of the injection needle 519; the other action is: the protrusion 62 will squeeze the abutment rod 518 after squeezing the abutment block 512, and due to the The piston plate 517 connected to the abutment rod 518 is located in the injection chamber 516. Since the injection chamber 516 is connected to the liquid channel, the liquid channel is connected to the injection tube 24 for injection before the collection device works, so that the fertilizer solution is introduced into the injection chamber 516, and the abutment rod 518 will drive the piston plate 517 to move after being squeezed, and then the injection needle 519 will quickly inject a certain amount of fertilizer solution into the soil sample; the above two actions are implemented quickly. After the extrusion ring 6 is reset, the abutment block 512 will quickly reset under the elastic force of the spring member 515 in the abutment member 51, that is, the whole process realizes the separation of the soil sample from the cylinder wall and the operation of injecting the fertilizer solution into the soil sample.

[0046] Furthermore, the extrusion ring 6 further includes a soft ring sleeve 61 and an anti-slip portion 62 provided on the outer periphery of the soft ring sleeve 61 .

[0047] The above-described embodiments merely illustrate several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that variations and modifications are possible without departing from the scope of the present invention, and such variations and modifications are fully within the scope of protection of the present invention.

Claims

1. A collection device for soil biodiversity survey and assessment, characterized by: The invention comprises an upper support (1), a connecting seat (2), a transmission member (3), a sampling end (4), and a collecting tube (5) disposed between the connecting seat (2) and the sampling end (4) and communicating with the internal space of the sampling end (4), wherein an extrusion ring (6) is sleeved on the collecting tube (5); wherein, The collecting cylinder (5) comprises a cylinder wall (52) and a plurality of abutment members (51) provided on the outer peripheral surface of the cylinder wall (52); the extrusion ring (6) is provided with a protrusion (63) at a position corresponding to the abutment member (51); The abutment member (51) includes a U-shaped support (511) provided on the outer periphery of the cylinder wall (52), an abutment block (512) movably provided in the U-shaped support (511), a connecting plate (513) connected to the bottom surface of the abutment block (512), and a top plate (514) provided at the end of the connecting plate (513); the connecting plate (513) passes through the U-shaped support (511) and the cylinder wall (52) and faces the collecting cylinder (5); a portion of the connecting plate (513) located in the U-shaped support (511) is sleeved with a spring member (515); The upper support (1) comprises a liquid storage tank, a refrigeration plate (11) arranged on the side of the liquid storage tank, and a handle (12) for assisting handheld sampling; A liquid storage cavity (23) communicating with the liquid storage tank is provided in the connecting seat (2), and an outer end of the liquid storage cavity (23) is provided on a liquid injection pipe (24) communicating with the liquid storage cavity (23); A liquid channel is provided in the cylinder wall (52), and a liquid injection hole (53) communicating with the liquid channel is provided at the outer end of the cylinder wall (52); Before the collection device is operated, the injection tube (24) is connected to the injection socket (53) to inject liquid into the liquid channel, and the connection between the injection tube (24) and the injection socket (53) is disconnected after the injection is completed; The abutment member (51) further comprises an abutment rod (518) movably extending through the abutment block (512), wherein the end of the abutment rod (518) away from the cylinder wall (52) protrudes from the upper surface of the abutment block (512), and the connecting plate (513) is provided with an injection cavity (516) connected to the liquid channel, and a piston plate (517) is movably provided in the injection cavity (516), and the piston plate (517) is fixedly connected to the abutment rod (518) near the end of the abutment block (512), and an injection needle (519) is provided on the end surface of the top plate (514) near the collecting cylinder (5) and is connected to the injection cavity (516).

2. The collection device for soil biodiversity survey and assessment according to claim 1, characterized in that: A motor (22) is provided in the connecting seat (2), and an output shaft of the motor (22) is rigidly connected to the upper end of the transmission member (3). The transmission member (3) is specifically a "convex" frame member, and the collecting cylinder (5) is located in the housing space of the transmission member (3).

3. The collection device for soil biodiversity survey and assessment according to claim 2, characterized in that: The sampling end (4) comprises a hollow drill bit (41) communicating with the internal space of the collecting tube (5), a connecting piece (42) provided at the upper end of the hollow drill bit (41), and a threaded portion (43) provided on the outer periphery of the connecting piece (42), wherein a spiral blade (411) is provided on the inner side of the hollow drill bit (41); the lower end of the collecting tube (5) is rotatably connected to the upper end surface of the connecting piece (42), and the sampling end (4) is detachably connected to the transmission member (3) via the threaded portion (43).

4. The collection device for soil biodiversity survey and assessment according to claim 1, characterized in that: The top plate (514) is in an arc shape that fits the cylinder wall (52), and the injection needle (519) faces the center of the arc surface of the top plate (514).

5. The collection device for soil biodiversity survey and assessment according to claim 1, characterized in that: The extrusion ring (6) further comprises a soft ring sleeve (61) and an anti-slip portion (62) provided on the outer periphery of the soft ring sleeve (61).

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