Device for collecting earthworms and undisturbed soil and keeping integrity of earthworm ducts

Abstract

The utility model discloses a device for collecting earthworms and undisturbed soil and keeping the integrity of earthworm ducts. The device comprises a collecting column and a separating and cutting assembly, the collection column is composed of two cylindrical parts which are matched with each other, the attached positions of the two sides of the two cylindrical parts are connected through a hinge, and at least one side of the two cylindrical parts is provided with a detachable hinge; a groove is formed in the inner wall of the bottom of the cylindrical part in the circumferential direction of the cylindrical part, a plurality of retaining ring assemblies are fixedly arranged in the groove, and each retaining ring assembly comprises two retaining rings oppositely arranged in the groove; the separating and cutting assembly comprises a cutting line and a plurality of rotating and tightening valve assemblies, each rotating and tightening valve assembly comprises two rotating and tightening valves which are oppositely arranged, one end of the cutting line is connected with one rotating and tightening valve, and the other end of the cutting line sequentially penetrates through two opposite retaining rings and then is connected with the other rotating and tightening valve. The device can realize one-time quantitative collection and taking-out of earthworms and undisturbed soil, and meanwhile, can keep the integrity of earthworm pore channels in the soil body and effectively prevent the earthworms from escaping.

Description

Technical Field

[0001] The utility model relates to the technical field of soil and soil animals, and more specifically, to a device for collecting earthworms and original soil and maintaining the integrity of earthworm pores. Background Art

[0002] At present, when sampling soil, manual sampling is mostly adopted, and undisturbed soil is mostly collected by square metal frames. The inner wall diameter of the traditional soil collection device for drilling sampling is generally in the range of 5 to 10 cm, and the single collection volume is limited. The friction of the inner wall of the sampler can be used to remove the soil at one time. It is only suitable for collecting soil samples and is not suitable for collecting earthworms. The use of traditional square metal frames to collect undisturbed soil and earthworms in it is a commonly used device at present, which can achieve quantitative collection, and the device has a simple structure and is easy to operate. However, on the one hand, the device mainly relies on vertical external force to knock and squeeze into the soil, which is time-consuming and laborious, and the sound and vibration generated by the force are easy to alarm the earthworms in the soil, which is easy to cause the earthworms to escape downward; on the other hand, after the device enters the expected depth of the soil, it is impossible to remove the soil at one time, and other tools are needed to cut the bottom of the soil. In addition, due to the friction of the inner wall of the device, the soil sample in the box is not easy to remove, and the soil deformation is easy to occur during the removal process.

[0003] In recent years, in order to save manpower and collect soil quickly, a number of mechanically assisted soil collection devices have been introduced one after another. However, these devices only liberate labor and improve work efficiency, but the disturbance to the sampling points during the operation of the mechanical devices is too large, which can easily lead to the escape of earthworms in the soil and cannot meet the requirements of earthworm collection.

[0004] Patent CN202122085398.1 discloses an undisturbed soil collection device that can maintain the integrity of soil and plant roots, which is suitable for undisturbed soil collection and can meet the integrity of plant roots. The invention device is provided with a rotatable blade. After the collection cup is pressed into the soil, the plant roots can be cut by a rotating blade machine to take out the soil sample. However, this device is difficult to apply to the collection of soil animals. On the one hand, unlike the plant roots that do not move, soil animals (earthworms) can move through the holes they dig. When disturbed by the outside world, the earthworms will escape through the holes away from the interference. After the blade of the device is cut, the connectivity of the earthworm hole at the bottom of the collection cup is not affected, and it cannot prevent the earthworms from escaping downward, so it is not suitable for earthworm collection. On the other hand, since one end of the blade of the device is fixed on the rotating shaft, if there are large-sized stones in the soil, the cutting will be obstructed, and there is a risk of damage to the blade when the connecting rod is rotated with force.

[0005] Therefore, it is an urgent problem to be solved to develop an integrated device for collecting original soil and earthworms and maintaining the integrity of earthworm pores, which can take out soil samples at one time, keep the soil structure intact, the earthworm pores intact, the soil volume controllable, the soil can be collected quickly, and the earthworms can be prevented from escaping. The device has the advantages of convenient sampling, simple, reasonable and light structure, easy processing and manufacturing, saving time and effort, etc. Summary of the invention

[0006] In response to the above-mentioned existing technical problems, the purpose of the utility model is to provide a device for collecting earthworms and original soil and maintaining the integrity of earthworm pores, which can realize one-time quantitative collection and removal of earthworms and original soil, while maintaining the integrity of earthworm pores in the soil and effectively preventing earthworms from escaping.

[0007] The above-mentioned purpose of the utility model is achieved through the following technical solutions:

[0008] A device for collecting earthworms and original soil and maintaining the integrity of earthworm pores, comprising: a collecting column and a separation and cutting assembly; the collecting column is composed of two tubular components that cooperate with each other, and the two sides of the two tubular components are connected by hinges, at least one of which is a detachable hinge; a groove is provided on the bottom inner wall of the tubular component along the circumferential direction of the tubular component, and a plurality of groups of buckle ring assemblies are fixedly provided in the groove, and each group of buckle ring assemblies includes two buckle rings relatively arranged in the groove; the separation and cutting assembly includes a cutting line accommodated in the groove and a plurality of groups of rotary tightening valve assemblies arranged on the top of the collecting column, and the rotary tightening valve assembly includes two rotary tightening valves relatively arranged, one end of the cutting line is connected to one of the rotary tightening valves, and the other end passes through the two relatively buckling rings in turn and is then connected to the other rotary tightening valve.

[0009] The utility model provides a device for collecting earthworms and original soil and maintaining the integrity of earthworm pores. On the one hand, the multiple cutting lines at the bottom of the collection column are tightened to cut the soil. The multiple cutting lines that are fully tightened can form a cutting line network, which is convenient for taking out the soil and can achieve one-time collection of original soil, which is easy and convenient. On the other hand, the multiple cutting lines at the bottom of the collection column are tightened, and the mechanical cutting process of the soil can destroy the earthworm pore structure and connectivity at the bottom of the soil, preventing the earthworms from escaping downward. In addition, the collection column is composed of two cylindrical parts that cooperate with each other, and the two cylindrical parts are connected by at least one detachable hinge. After the soil is taken out, the detachable hinge is disassembled to separate the two cylindrical parts that cooperate with each other, so that the soil sample can be quickly and completely taken out.

[0010] The utility model provides a device for collecting earthworms and original soil and maintaining the integrity of earthworm pores. The device uses a rotating tightening valve assembly and a cutting line to tighten the cutting line, cut the soil, and the multiple cutting lines that are fully tightened can form a cutting line network, which is convenient for taking out the soil. The soil sample can be taken out at one time, and has the functions of maintaining the integrity of the soil structure, the integrity of the earthworm pores, the controllable volume of the soil, the rapid collection of soil, and the prevention of earthworm escape. It has the advantages of convenient sampling, simple, reasonable and light structure, convenient processing and manufacturing, and time and labor saving.

[0011] Preferably, the cylindrical component is a semicircular cylinder with an internal cavity and an opening at the bottom, and the cross-section of the bottom of the cylindrical component is a semicircle.

[0012] Preferably, of the two hinges, one hinge is a detachable hinge, and the other hinge is a fixed hinge.

[0013] Preferably, the detachable hinge is connected to the tubular component by bolts.

[0014] Preferably, vertical scale lines for measuring the depth of the collection column are provided on the inner wall of the collection column body.

[0015] Preferably, the bottom of the cylindrical component is provided with serrations.

[0016] Preferably, a protrusion for limiting the cutting line is provided on the inner wall of the groove. One end of the protrusion is connected to the inner wall of the groove, and the other end of the protrusion away from the groove is inclined toward the direction of the groove opening. The protrusion can prevent the cutting line in the groove from sliding upward when the collection column enters the soil, and can easily be drawn out when the rotary tightening valve is tightened.

[0017] Preferably, a level indicator is provided on the top of the collection column.

[0018] Preferably, a collection column handle is fixedly provided on the top of the collection column.

[0019] Preferably, the rotary tightening valve assembly is provided in two groups, and the buckle assembly is provided in two groups.

[0020] Preferably, the cutting wire can be a wire body conventionally used in the art, including but not limited to metal wire and the like.

[0021] Preferably, the buckle can be a buckle commonly used in the art, including but not limited to a metal buckle.

[0022] Compared with the prior art, the utility model has the following beneficial effects:

[0023] The utility model provides a device for collecting earthworms and original soil and maintaining the integrity of earthworm pores. The soil is cut by rotating and tightening the valve assembly and the cutting line. The multiple cutting lines that are fully tightened can form a cutting line network, which is convenient for taking out the soil. In addition, the setting of the detachable hinge also ensures the integrity of the soil. The utility model can take out soil samples at one time, and has the functions of maintaining the integrity of the soil structure, the integrity of the earthworm pores, the controllable volume of the soil, the rapid collection of soil, and the prevention of earthworm escape. It has the advantages of convenient sampling, simple, reasonable and light structure, convenient processing and manufacturing, and time and labor saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The present invention is a schematic diagram of the structure of a device for collecting earthworms and original soil and maintaining the integrity of earthworm pores.

[0025] Figure 2 for Figure 1 Schematic diagram of the structure of the device after removing the collection column handle.

[0026] Figure 3 for Figure 1 Schematic diagram of the structure of the groove in the device.

[0027] Figure 4 for Figure 1 Flow chart of the device's operation.

[0028] In the figure, 1-collecting column; 1-1 first tubular component; 1-2 second tubular component; 2-detachable hinge; 3-groove; 4-buckle; 5-cutting line; 6-rotation tightening valve; 7-vertical scale line; 8-protrusion; 9-level indicator; 10-collecting column handle; 11-first rotation tightening valve; 12-second rotation tightening valve; 13-third rotation tightening valve; 14-fourth rotation tightening valve; 15-first buckle; 16-second buckle; 17-third buckle; 18-fourth buckle; 19-sawtooth. DETAILED DESCRIPTION

[0029] The following embodiments are for illustrative purposes only and should not be construed as limiting the present invention. In order to better illustrate the present embodiment, some parts of the accompanying drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions may be omitted in the accompanying drawings. The positional relationships described in the accompanying drawings are for illustrative purposes only and should not be construed as limiting the present invention.

[0030] When describing the embodiments of the invention, terms such as "length", "width", "thickness", "height", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" indicating directions and positional relationships are based on the directions or positional relationships shown in the relevant drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the above terms should not be understood as limitations on the present invention.

[0031] Example 1 A device for collecting earthworms and undisturbed soil and maintaining the integrity of earthworm pores

[0032] like Figures 1 to 3 As shown, a device for collecting earthworms and original soil and maintaining the integrity of earthworm pores comprises: a collecting column 1 and a separation and cutting assembly; the collecting column 1 is composed of two tubular parts (a first tubular part 1-1 and a second tubular part 1-2) that cooperate with each other, and the two sides of the two tubular parts are connected by hinges 2 at the joints, at least one side of which is a detachable hinge 2; a groove 3 is provided on the inner wall of the bottom of the tubular part along the circumferential direction of the tubular part, and a plurality of groups of buckle ring assemblies are fixedly provided in the groove 3, and each group of buckle ring assemblies comprises two buckle rings 4 relatively arranged in the groove 3; the separation and cutting assembly comprises a cutting line 5 accommodated in the groove 3 and a plurality of groups of rotary tightening valve assemblies arranged on the top of the collecting column 1, and the rotary tightening valve assembly comprises two rotary tightening valves 6 relatively arranged, and one end of the cutting line 5 is connected to one of the rotary tightening valves 6, and the other end passes through the two relatively buckling rings 4 in turn and is then connected to the other rotary tightening valve 6.

[0033] In this embodiment, the cylindrical component is a semicircular cylinder with an internal cavity and an opening at the bottom, and the cross-section of the bottom of the cylindrical component is a semicircle.

[0034] In this embodiment, the detachable hinge 2 is connected to the tubular component by bolts.

[0035] In this embodiment, one of the two hinges is a detachable hinge 2 and the other is a fixed hinge. After the collection column 1 is taken out of the soil, the bolts of the detachable hinge 2 can be pulled out, and the two matching cylindrical parts can be separated to obtain a complete soil sample.

[0036] In this embodiment, the inner wall of the collecting column 1 is provided with vertical scale lines 7 for measuring the depth of the collecting column 1. Based on the setting of the vertical scale lines 7, the operator can quantitatively collect soil samples of a certain depth and volume as required, and realize the collection of samples of multiple volume specifications.

[0037] In this embodiment, a protrusion 8 for limiting the cutting line 5 is provided on the inner wall of the groove 3. One end of the protrusion 8 is connected to the inner wall of the groove 3, and the other end of the protrusion 8 away from the groove 3 is inclined toward the opening of the groove 3. The protrusion 8 can prevent the cutting line 5 in the groove 3 from sliding upward when the collection column 1 enters the soil, and can easily be drawn out when the rotary tightening valve 6 is tightened.

[0038] In this embodiment, a level indicator 9 is provided on the top of the collection column 1. The level indicator 9 helps to ensure the vertical direction of the collection column 1 and provides a reference for the collection column 1 to vertically enter the soil.

[0039] In this embodiment, a collection column handle 10 is fixedly provided on the top of the collection column 1. The operator can hold the collection column handle 10 and rotate the collection column handle 10 to drive the collection column 1 to rotate into the soil.

[0040] In this embodiment, two groups of rotary tightening valve assemblies are provided, including a first rotary tightening valve 11, a second rotary tightening valve 12, a third rotary tightening valve 13 and a fourth rotary tightening valve 14, wherein the first rotary tightening valve 11 and the second rotary tightening valve 12 are arranged opposite to each other, and the third rotary tightening valve 13 and the fourth rotary tightening valve 14 are arranged opposite to each other.

[0041] The buckle ring assembly is provided in two groups, including a first buckle ring 15, a second buckle ring 16, a third buckle ring 17 and a fourth buckle ring 18, wherein the first buckle ring 15 and the second buckle ring 16 are arranged opposite to each other, and the third buckle ring 17 and the fourth buckle ring 18 are arranged opposite to each other.

[0042] The first buckle ring 15 is arranged directly below the first rotary tightening valve 11 , the second buckle ring 16 is arranged directly below the second rotary tightening valve 12 , the third buckle ring 17 is arranged directly below the third rotary tightening valve 13 , and the fourth buckle ring 18 is arranged directly below the fourth rotary tightening valve 14 .

[0043] One end of the cutting line 5 is connected to the first rotary tightening valve 11 , and the other end of the cutting line 5 passes through the first buckle ring 15 and the second buckle ring 16 in sequence, and then is connected to the second rotary tightening valve 12 .

[0044] One end of the other cutting line 5 is connected to the third rotary tightening valve 13 , and the other end of the other cutting line 5 passes through the third buckle 17 and the fourth buckle 18 in sequence, and then is connected to the fourth rotary tightening valve 14 .

[0045] In this embodiment, the cutting line 5 is a metal wire.

[0046] In this embodiment, the buckle ring 4 is a metal buckle ring.

[0047] like Figure 4As shown, the utility model provides a device for collecting earthworms and original soil and maintaining the integrity of earthworm pores. The collection of earthworms and original soil can be completed according to the following method steps:

[0048] (1) Take a device for collecting earthworms and undisturbed soil while maintaining the integrity of the earthworm pores, and place the cutting wire 5 in the groove of the collecting column 1.

[0049] (2) Calibrate the level indicator 9.

[0050] (3) Rotate the collection column handle 10 and apply vertical pressure to the collection column 1 at the same time, and stop when the expected volume is reached.

[0051] (4) Tighten the first rotary tightening valve 11 and the second rotary tightening valve 12.

[0052] (5) Tighten the third rotary tightening valve 13 and the fourth rotary tightening valve 14.

[0053] (6) Lift the collection column 1 upward.

[0054] (7) Disassemble the detachable hinge 2.

[0055] (8) Take out the complete soil sample.

[0056] The utility model provides a device for collecting earthworms and original soil and maintaining the integrity of earthworm pores. The device uses a rotating tightening valve assembly and a cutting line to tighten the cutting line, cut the soil, and the multiple cutting lines that are fully tightened can form a cutting line network, which is convenient for taking out the soil. The soil sample can be taken out at one time, and has the functions of maintaining the integrity of the soil structure, the integrity of the earthworm pores, the controllable volume of the soil, the rapid collection of soil, and the prevention of earthworm escape. It has the advantages of convenient sampling, simple, reasonable and light structure, convenient processing and manufacturing, and time and labor saving.

[0057] Example 2 A device for collecting earthworms and undisturbed soil and maintaining the integrity of earthworm pores

[0058] The difference between this embodiment and embodiment 1 is that in this embodiment, the bottom of the cylindrical component is provided with saw teeth 19. Based on the setting of the saw teeth 19, the operator can accelerate the entry of the collection column 1 into the soil by rotating the collection column 1 left and right while applying downward pressure, saving time and effort.

[0059] Example 3 A device for collecting earthworms and undisturbed soil and maintaining the integrity of earthworm pores

[0060] The difference between this embodiment and embodiment 1 is that in this embodiment, both hinges are detachable hinges 2. In this embodiment, the bottom of the cylindrical component is provided with saw teeth 19. Based on the setting of the saw teeth 19, the operator can accelerate the entry of the collection column 1 into the soil by rotating the collection column 1 left and right while applying downward pressure, saving time and effort.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not intended to limit the scope of protection of the utility model. For ordinary technicians in this field, other different forms of changes or modifications can be made based on the above descriptions and ideas. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the utility model should be included in the scope of protection of the claims of the utility model.

Claims

1. A device for collecting earthworms and undisturbed soil and maintaining the integrity of earthworm pores, characterized in that: include: A collection column (1), the collection column (1) is composed of two mutually matching cylindrical parts, the two sides of the two cylindrical parts are connected by hinges (2), at least one side of which is a detachable hinge (2); a groove (3) is arranged on the inner wall of the bottom of the cylindrical part along the circumferential direction of the cylindrical part, and a plurality of groups of buckle ring assemblies are fixedly arranged in the groove (3), each group of buckle ring assemblies includes two buckle rings (4) arranged oppositely in the groove (3); A separation and cutting assembly, the separation and cutting assembly comprises a cutting line (5) received and placed in the groove (3) and a plurality of sets of rotating tightening valve assemblies arranged on the top of the collection column (1), the rotating tightening valve assembly comprising two rotating tightening valves (6) arranged opposite to each other, one end of the cutting line (5) is connected to one of the rotating tightening valves (6), and the other end passes through the two opposite buckles (4) in sequence and is then connected to the other rotating tightening valve (6).

2. The device according to claim 1, characterized in that: The cylindrical component is a semicircular cylinder with an internal cavity and an opening at the bottom, and the cross section of the bottom of the cylindrical component is a semicircle.

3. The device according to claim 1, characterized in that: Of the two hinges, one is a detachable hinge (2) and the other is a fixed hinge.

4. The device according to claim 1 or 3, characterized in that: The detachable hinge (2) is connected to the tubular component via bolts.

5. The device according to claim 1, characterized in that: The inner wall of the collecting column (1) is provided with a vertical scale line (7) for measuring the depth of the collecting column (1).

6. The device according to claim 1, characterized in that: The bottom of the tubular component is provided with saw teeth (19).

7. The device according to claim 1, characterized in that: A protrusion (8) for limiting the cutting line (5) is provided on the inner wall of the groove (3).

8. The device according to claim 1, characterized in that: A level indicator (9) is provided on the top of the collection column (1).

9. The device according to claim 1, characterized in that: A collection column handle (10) is fixedly arranged on the top of the collection column (1).

10. The device according to claim 1, characterized in that: The rotary tightening valve assembly is provided in two groups, and the buckle ring assembly is provided in two groups.

Images