CN112881092B - Forestry reconnaissance device - Google Patents
Forestry reconnaissance device Download PDFInfo
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- CN112881092B CN112881092B CN202110064152.8A CN202110064152A CN112881092B CN 112881092 B CN112881092 B CN 112881092B CN 202110064152 A CN202110064152 A CN 202110064152A CN 112881092 B CN112881092 B CN 112881092B
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- drill pipe
- fixed
- rotary drum
- soil
- plate
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
- G01N2001/1418—Depression, aspiration
Abstract
The application relates to the technical field of forest investigation, and particularly discloses a forest investigation device, which comprises a drill pipe, a fixed plate, a sliding plate and an inflator pump, wherein the fixed plate is fixed in the drill pipe; an automatic valve is arranged on the part, below the fixed plate, of the side wall of the drill pipe; the lower part of the drill pipe is provided with a liquid inlet hole, and when the sliding plate moves to the limit position below, the sliding plate can seal the liquid inlet hole; the part of the drill pipe below the liquid inlet hole is provided with a baffle plate which is fixedly and hermetically connected with the drill pipe. The purpose of this patent is to solve the problem that soil solution collection system downstream's in-process solution extraction pipe is blocked by soil easily.
Description
Technical Field
The application relates to the technical field of forest investigation, in particular to a forest investigation device.
Background
Forest soil is the material foundation for developing forestry production, and moisture, nutrient, light, heat and air needed by forest organism accumulation are partially from the atmosphere, and the moisture, the nutrient and a part of oxygen are all dependent on the supplement of the forest soil and are supported by the foundation, so that the forest stands upright on the ground to perform various life activities. Fertility is an important characteristic of forest soil, and is a main factor determining forest productivity and a comprehensive reflection of physical, chemical and biological properties of soil. The soil fertility depends on the coordination of nutrients, moisture, air and temperature, namely water, fertilizer, gas and heat. Therefore, the water content of the forest soil is limited by weather and other conditions, and can be regulated and controlled by artificial management measures. Therefore, the moisture detection of the forest soil is necessary, and the forest soil is detected along with the moisture and then is accurately irrigated manually to meet the requirements of fast-growing and high-yield forest trees.
Soil and soil solution are the basis of soil science research, and soil reflects the integrity, such as total carbon, total nitrogen and the like of the soil; while the soil solution is one of the most active areas in the soil, reflecting the effective properties of the soil, such as available carbon, available nitrogen, etc.
The Chinese patent with the authority notice number of CN111351680B discloses a portable soil and soil solution collection device, including gathering a section of thick bamboo, the inboard middle part of gathering a section of thick bamboo has been seted up and has been gathered chamber and solution collection chamber, soil collection intracavity is installed and is stretched into the rotary rod in the drive chamber respectively in the both sides of drive chamber, installs helical blade on the rotary rod, solution collection intracavity cooperation slidable mounting has the piston plate, and the piston plate is installed to one side that is close to the drive chamber, and screw thread section of thick bamboo is connected with the threaded rod that stretches into the drive intracavity in screw thread cooperation, drive intracavity is installed and is used for selecting the rotatory drive assembly of drive rotary rod or threaded rod, the soil screen is still installed in the one end that the collection section of thick bamboo is close to the solution collection chamber in the cooperation, install the solution extraction pipe with solution collection chamber intercommunication in the soil screen: the driving assembly comprises a rotating shaft, a first guide plate, a rocking handle, an elastic telescopic fixing assembly, a supporting tube, a second guide plate, a rotating body, a first bevel gear, a second bevel gear and a third bevel gear; the collecting cylinders on two sides of the driving cavity are respectively provided with a first movable opening and a second movable opening, the first movable opening is provided with a first guide plate in a matched sliding manner, and the second movable opening is provided with a second guide plate in a matched sliding manner; the rotary shaft is rotatably arranged on the first guide plate, the support pipe is rotatably arranged on the second guide plate, the rotary shaft and the support pipe are coaxially arranged, one opposite ends of the rotary shaft and the support pipe are connected through a rotary body, the rocking handle is fixedly arranged at the other end of the rotary shaft, and the elastic telescopic fixing assembly capable of being abutted and fixed with the outer side wall of the collecting cylinder is arranged at the other end of the support pipe; a first bevel gear is arranged and fixed at the end part of the rotary rod in the driving cavity, and a second bevel gear is arranged and fixed at the end part of the threaded rod in the driving cavity; and a third bevel gear which can be meshed and connected with the first bevel gear and the second bevel gear is also arranged and fixed on the rotating shaft.
Through setting up the rotatory actuating assembly of rotary rod or threaded rod in the above-mentioned scheme, when actuating assembly drive rotary rod was rotatory, with the one end of collecting the section of thick bamboo and installing soil and keep off the net insert soil in, can block soil through soil and extrude the soil solution of filtering out, because of threaded rod and screw barrel cooperation threaded connection, screw barrel can move relative threaded rod, and then screw barrel can drive the piston board and remove, be convenient for through the extraction of solution extraction pipe to soil solution that filters out in the soil keeps off the net.
In the above scheme, although a soil solution sampling device is provided, the problem that the solution extraction pipe is easily blocked by soil in the process of downward movement of the soil solution sampling device still exists.
Disclosure of Invention
Aiming at the defects of the prior art, the technical problem solved by the application is to provide the forestry investigation device and solve the problem that a solution extraction pipe is easy to be blocked by soil in the downward movement process of a soil solution collecting device.
In order to solve the problems, the application adopts the following technical scheme: the forestry investigation device comprises a drill pipe, a fixed plate, a sliding plate and an inflator pump, wherein the fixed plate is fixed inside the drill pipe, a one-way air inlet valve is arranged on the fixed plate, the inflator pump is communicated with the one-way air inlet valve, the sliding plate is in sliding sealing connection inside the drill pipe, a first spring is arranged inside the drill pipe, one end of the first spring is fixed on the fixed plate, and the other end of the first spring is fixed on the sliding plate; an automatic valve is arranged on the part, below the fixed plate, of the side wall of the drill pipe; the lower part of the drill pipe is provided with a liquid inlet, and when the sliding plate moves to the lower limit position, the sliding plate can seal the liquid inlet; the part of the drill pipe below the liquid inlet hole is provided with a baffle plate which is fixedly and hermetically connected with the drill pipe.
The technical principle of the technical scheme is as follows:
1. setting a drill pipe, wherein the drill pipe is used for drilling soil to a designated depth;
2. the hydraulic drill pipe is characterized in that an inflator pump, a fixed plate and a sliding plate are arranged, air is filled into the part, located between the fixed plate and the sliding plate, inside the drill pipe through the inflator pump before use, the sliding plate overcomes the acting force of a first spring and slides downwards to the limit position below, the sliding plate seals a liquid inlet, and the phenomenon that the liquid inlet is blocked due to the fact that soil seals the liquid inlet in the downward movement process of the drill pipe is avoided; when the liquid inlet hole reaches the designated depth, the automatic valve is opened, air in the drill pipe is discharged through the automatic valve, the sliding plate moves upwards under the elasticity of the first spring, negative pressure is generated in the part, below the sliding plate, of the drill pipe, and soil solution with the designated depth is sucked into the drill pipe through the liquid inlet hole.
The beneficial effect that this scheme produced is: compared with the existing soil solution sampling device, the existing soil solution sampling device is easy to block by soil in the downward movement process; according to the scheme, the sliding plate is driven to move downwards to plug the liquid inlet hole by blowing air into the drill pipe in advance, so that the liquid inlet hole is prevented from being plugged in the process of moving the drill pipe downwards, when the depth reaches the designated depth, the automatic valve is opened, the sliding plate moves upwards, and soil solution with the designated depth can be sucked into the drill pipe.
Further, a columnar cavity is formed in the partition board, a turbine is coaxially arranged in the cavity, a shell of the turbine is fixed on the inner side wall of the cavity, a rotating shaft of the turbine is rotatably connected in the cavity, and the automatic valve is communicated with the cavity through an exhaust pipe; the lower end of the rotating shaft of the turbine is fixedly provided with a rotary drum, and the lower end of the rotary drum penetrates through the bottom wall of the fixed box and is in rotary sealing connection with the fixed box; the inside of the rotary drum is coaxially provided with spiral sheets; the liquid inlet hole is communicated with the lower part in the fixed box through a liquid suction pipe, a control mechanism is arranged on the side wall of the rotary drum, and when the rotary drum rotates, the control mechanism allows soil solution to pass through; the control mechanism seals the sidewall of the drum when the drum is stationary; and an exhaust valve is arranged at the bottom of the fixed box.
When the sliding plate moves downwards to a lower limit position, the sliding plate does not move downwards any more, the air pump continuously blows air into the drill pipe, the air is compressed in the drill pipe to form compressed air, after the automatic valve is opened, high-speed flowing gas is discharged from the drill pipe to enter a cavity in the partition plate, the high-speed flowing gas drives a rotating shaft of the turbine to rotate, the rotating shaft of the turbine drives the rotating drum to rotate to generate centrifugal force, the control mechanism is opened, the inner side and the outer side of the rotating drum are communicated, soil solution in the rotating drum can enter the fixed box through the control mechanism, and the interior of the drill pipe can suck soil solution samples in the fixed box through the liquid suction pipe; meanwhile, in order to prevent the soil solution from being blocked by soil in the process of sucking the soil solution by the liquid suction pipe, the rotary drum drives the spiral piece to rotate so as to discharge the soil in the rotary drum outwards, so that the soil at the lower end of the rotary drum forms a groove, the soil solution is collected in the groove, the soil solution is convenient to enter the rotary drum, and the soil is prevented from entering the fixed box and the liquid suction pipe through the control mechanism; stopping the inflator pump, closing the automatic valve after the exhaust of the interior of the drill pipe is completed, stopping the rotation of the rotating shaft of the turbine, stopping the rotation of the rotary drum, and blocking the inner side and the outer side of the rotary drum by the control mechanism to avoid leakage of soil samples in the interior of the drill pipe; after the drill pipe is taken out, the air pump is started, the air pump blows air into the drill pipe again, the air drives the sliding plate to move downwards to discharge soil solution in the drill pipe into the fixed box, and the emptying valve at the bottom of the fixed box is opened to discharge the soil solution.
Further, a fixed block is fixed on the side wall of the rotary drum, a blind hole is formed in the fixed block, and an opening of the blind hole faces the inner side of the rotary drum; the inside of the blind hole is connected with a blocking block in a sliding and sealing manner, a second spring is arranged inside the blind hole, one end of the second spring is fixed on the blocking block, and the other end of the second spring is fixed at the bottom of the blind hole; the lower part at the middle part of blind hole is provided with the through-hole with the inside and rotary drum outside intercommunication of blind hole.
The rotary drum rotates to generate centrifugal force, the blocking piece slides to the bottom of the blind hole under the action of the centrifugal force, the blind hole communicates the interior of the rotary drum with the through hole, and soil solution in the rotary drum can enter the fixed box; when the rotary drum stops rotating, centrifugal force disappears, and the blocking block resets under the acting force of the second spring to block the through hole.
Further, the blind holes are T-shaped blind holes. Avoid the block from slipping out of the blind hole
Further, the number of control mechanisms is set to 10-50 and is evenly distributed circumferentially about the axis of the drum. The arrangement of 10-50 control mechanisms can enable soil solution inside the rotary drum to quickly enter the fixed box.
Further, the lower end of the drill pipe is in a truncated cone shape. The soil is convenient to drill.
Drawings
Fig. 1 is a cross-sectional view of the overall structure.
Fig. 2 is an enlarged view of a portion a in fig. 1.
Detailed Description
The following is a further detailed description of the embodiments:
reference numerals in the drawings of the specification include: drill pipe 10, fixed plate 11, one-way intake valve 12, inflator 13, first spring 14, slide plate 15, automatic valve 16, exhaust pipe 17, shaft 20 of the turbine, housing 21 of the turbine, pipette 22, fixed case 30, rotary drum 40, rotary rod 41, spiral piece 42, fixed block 43, blind hole 44, second spring 45, block 46, through hole 47.
An example is substantially as shown in fig. 1-2: a forestry investigation device includes drill pipe 10, fixed plate 11, slide plate 15, inflator 13, baffle, turbine, fixed box 30 and rotary drum 40.
As shown in fig. 1, the upper part of the drill pipe 10 is cylindrical, the lower end of the drill pipe 10 is in a shape of an inverted circular table, the axis of the drill pipe 10 is arranged along the vertical direction, a fixed plate 11 is fixed at the upper part in the drill pipe 10, a one-way air inlet valve 12 is arranged on the fixed plate 11, an inflator 13 is fixed at the part, positioned above the fixed plate 11, in the drill pipe 10, an outlet end of the inflator 13 is communicated with the one-way air inlet valve 12, a sliding plate 15 is coaxially arranged with the drill pipe 10, the sliding plate 15 is in sliding sealing connection with the inside of the drill pipe 10, a first spring 14 is arranged in the drill pipe 10, one end of the first spring 14 is fixed on the fixed plate 11, and the other end of the first spring 14 is fixed on the sliding plate 15; an automatic valve 16 is arranged on the left side wall of the drill pipe 10 below the fixed plate 11, the automatic valve 16 is electrically connected with an automatic valve switch, the automatic valve switch is pressed down, the automatic valve 16 is opened, and then the automatic valve switch is pressed down, and the automatic valve 16 is closed; an automatic valve switch is fixed to the top of the drill pipe 10. The right lower part of the drill pipe 10 is provided with a liquid inlet, the part of the drill pipe 10 below the liquid inlet is provided with a baffle plate, and the baffle plate is fixedly and hermetically connected with the drill pipe 10; when the sliding plate 15 moves to the lower limit position, that is, the sliding plate 15 moves downwards to abut against the partition plate, the sliding plate 15 can seal the liquid inlet.
The drill pipe 10 is used for drilling earth so that the lower end of the present forestry investigation device can reach a specified depth. The lower end of the drill pipe 10 is provided with a round table shape, so that soil can be conveniently drilled.
Before the forestry investigation device is used, air is filled into the part, located between the fixed plate 11 and the sliding plate 15, inside the drill pipe 10 through the air pump 13, the sliding plate 15 slides downwards to a lower limit position against the acting force of the first spring 14 by the air, the liquid inlet hole is blocked by the sliding plate 15, and the liquid inlet hole is prevented from being blocked by soil in the process of downwards moving the drill pipe 10; when the liquid inlet hole reaches a designated depth, the automatic valve 16 is opened, air in the drill pipe 10 is discharged through the automatic valve 16, the sliding plate 15 moves upwards under the elasticity of the first spring 14, negative pressure is generated in the part of the drill pipe 10 below the sliding plate 15, and soil solution with the designated depth can be sucked into the drill pipe 10 through the liquid inlet hole.
As shown in fig. 1, a columnar cavity is formed in the partition plate, a turbine is coaxially arranged in the cavity, a shell 21 of the turbine is fixed on the inner side wall of the cavity, a rotating shaft 20 of the turbine is rotatably connected in the cavity, an automatic valve 16 is communicated with the inner top of the cavity through an exhaust pipe 17, and the left lower end of the cavity is communicated with the outside through a one-way exhaust valve; a fixed box 30 is coaxially fixed inside the lower part of the drill pipe 10, the fixed box 30 is cylindrical in shape, the lower end of a rotating shaft 20 of the turbine penetrates through a partition plate and the top wall of the fixed box 30 and extends into the fixed box 30, the rotating shaft 20 of the turbine is in rotary sealing connection with the partition plate and the fixed box 30, a rotary drum 40 is coaxially fixed at the lower end of the rotating shaft 20 of the turbine, the rotary drum 40 is cylindrical in shape, and the lower end of the rotary drum 40 penetrates through the bottom wall of the fixed box 30 and is in rotary sealing connection with the fixed box 30; the lower end of the rotary drum 40 is opened, a rotary rod 41 is coaxially fixed in the rotary drum 40, and a spiral piece 42 is fixed on the rotary rod 41; the liquid inlet hole is communicated with the inner lower part of the fixed box 30 through the liquid suction pipe 22; as shown in fig. 2, a fixed block 43 is fixed on the right side wall of the rotary drum 40, the left and right ends of the fixed block 43 penetrate through the inner and outer side walls of the rotary drum 40 and are in sealing connection with the rotary drum 40, a blind hole 44 is arranged in the inside of the fixed block 43, the axis of the blind hole 44 is arranged in the horizontal direction, the opening of the blind hole 44 is arranged towards the left, the blind hole 44 is a T-shaped blind hole 44, and the diameter of the opening of the blind hole 44 is 0.8 times the diameter of the bottom of the blind hole 44; the inside of the blind hole 44 is connected with a cylindrical blocking block 46 in a sliding and sealing manner, a second spring 45 is arranged in the blind hole 44, one end of the second spring 45 is fixed on the blocking block 46, and the other end of the second spring 45 is fixed at the bottom of the blind hole 44; a through hole 47 for communicating the inside of the blind hole 44 with the outside of the drum 40 is provided below the middle part of the blind hole 44; the bottom of the stationary box 30 is provided with an evacuation valve.
When the sliding plate 15 moves downwards to the lower limit position, the sliding plate 15 does not move downwards any more, the air pump 13 continuously blows air into the drill pipe 10, the air is compressed in the drill pipe 10 to form compressed air, after the automatic valve 16 is opened, high-speed flowing air is discharged from the drill pipe 10 to enter a cavity in the partition plate, the high-speed flowing air drives the rotating shaft 20 of the turbine to rotate, the rotating shaft 20 of the turbine drives the rotating drum 40 to rotate to generate centrifugal force, the blocking piece 46 moves towards the bottom of the blind hole 44 under the action of the centrifugal force and compresses the second spring 45, the blocking piece 46 moves to the right side of the through hole 47, the inner side and the outer side of the rotating drum 40 are communicated, soil solution in the rotating drum 40 can enter the fixed box 30 through the fixed block 43, and the soil solution sample in the fixed box 30 can be sucked into the drill pipe 10 through the liquid suction pipe 22; meanwhile, in order to prevent the soil solution from being blocked in the process of sucking the soil solution by the liquid suction pipe 22, the rotary drum 40 drives the rotary rod 41 to rotate, and the rotary rod 41 rotates to drive the spiral piece 42 to rotate so as to discharge the soil in the rotary drum 40 outwards, so that a soil layer at the lower end of the rotary drum 40 forms a groove, the soil solution is collected in the groove, the soil solution is convenient to enter the rotary drum 40, and the soil is prevented from entering the fixed box 30 and the liquid suction pipe 22 through the fixed block 43; after sampling is completed, the inflator pump 13 is stopped, after the internal exhaust of the drill pipe 10 is completed, the automatic valve 16 is closed, the rotating shaft 20 of the turbine stops rotating, the rotating drum 40 stops rotating, the inner side and the outer side of the rotating drum 40 are blocked by the fixing blocks 43, and the leakage of soil samples in the drill pipe 10 is avoided; after the drill pipe 10 is taken out, the air pump 13 is started, the air pump 13 blows air into the drill pipe 10 again, the air drives the sliding plate 15 to move downwards to discharge the soil solution in the drill pipe 10 into the fixed box 30, and the emptying valve at the bottom of the fixed box 30 is opened to discharge the soil solution.
In the present embodiment, the number of the fixing blocks 43 is set to 30 and is uniformly distributed circumferentially about the axis of the drum 40. The provision of 30 control mechanisms allows the soil solution within the drum 40 to quickly enter the stationary box 30.
The specific implementation process is as follows: in the initial state, the automatic valve 16 is closed; before the forestry investigation device is used, air is filled into the part, located between the fixed plate 11 and the sliding plate 15, of the drill pipe 10 through the air pump 13 so that the sliding plate 15 seals the liquid inlet; when the liquid inlet hole reaches a designated depth, the automatic valve 16 is opened, compressed air in the drill pipe 10 is discharged through the automatic valve 16, on one hand, the high-speed flowing gas drives the rotating shaft 20 of the turbine to rotate, the rotating shaft 20 of the turbine drives the rotary drum 40 to rotate to generate centrifugal force, the blocking block 46 moves towards the bottom of the blind hole 44 under the action of the centrifugal force, the inner side and the outer side of the rotary drum 40 are communicated, and soil solution in the rotary drum 40 can enter the fixed box 30 through the fixed block 43; on the other hand, the sliding plate 15 moves upward under the elastic force of the first spring 14, the part of the inside of the drill pipe 10 located below the sliding plate 15 generates negative pressure, and the inside of the drill pipe 10 can suck soil solution of a designated depth through the liquid inlet hole; simultaneously, the rotating drum 40 drives the spiral sheets 42 to rotate so as to discharge the soil in the rotating drum 40 outwards, so that a soil layer at the lower end of the rotating drum 40 forms a groove, and the soil solution is collected in the groove, so that the soil solution is convenient to enter the rotating drum 40, and the soil is prevented from entering the fixed box 30 and the liquid suction pipe 22 through the fixed block 43; to avoid clogging of the pipette 22 with soil during the sucking of the soil solution.
Compared with the existing soil solution sampling device, the soil solution sampling device is convenient to sample the soil solution by arranging the blocking net, the existing soil solution sampling device can only block large-particle soil by arranging the blocking net, cannot block small-particle soil, and cannot automatically discharge the soil entering the inner side of the blocking net, so that the soil solution sampling device still can be blocked by the small-particle soil in the processes of downward movement and extraction of the soil solution; in the scheme of the application, in the downward movement process of the drill pipe 10, the side wall of the rotary drum 40 is blocked by the fixing block 43, so that soil is prevented from entering the fixing box 30 and the liquid suction pipe 22, and the liquid suction pipe 22 is prevented from being blocked; on the other hand, the turbine drives the rotary drum 40 to rotate to generate centrifugal force, so that the inner side wall and the outer side wall of the rotary drum 40 are communicated, and the inside of the drill pipe 10 automatically sucks the soil solution sample; after the discharge, the fixing block 43 again seals the inner side wall of the rotary drum 40, preventing leakage of the soil solution sample inside the drill pipe 10.
The foregoing is merely exemplary embodiments of the present application, and specific structures and features that are well known in the art are not described in detail herein. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present application, and these should also be considered as the scope of the present application, which does not affect the effect of the implementation of the present application and the utility of the patent. The protection scope of the present application is subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.
Claims (5)
1. Forestry reconnaissance device, its characterized in that: the drill pipe comprises a drill pipe body, a fixing plate, a sliding plate and an air pump, wherein the fixing plate is fixed in the drill pipe body, a one-way air inlet valve is arranged on the fixing plate, the air pump is communicated with the one-way air inlet valve, the sliding plate is connected in the drill pipe body in a sliding sealing mode, a first spring is arranged in the drill pipe body, one end of the first spring is fixed on the fixing plate, and the other end of the first spring is fixed on the sliding plate; an automatic valve is arranged on the part, below the fixed plate, of the side wall of the drill pipe; the lower part of the drill pipe is provided with a liquid inlet, and when the sliding plate moves to the lower limit position, the sliding plate can seal the liquid inlet; the part of the drill pipe below the liquid inlet hole is provided with a baffle plate, the baffle plate is fixedly and hermetically connected with the drill pipe, a columnar cavity is formed in the baffle plate, a turbine is coaxially arranged in the cavity, a shell of the turbine is fixed on the inner side wall of the cavity, a rotating shaft of the turbine is rotationally connected in the cavity, and the automatic valve is communicated with the cavity through an exhaust pipe; the lower end of the rotating shaft of the turbine is fixedly provided with a rotary drum, and the lower end of the rotary drum penetrates through the bottom wall of the fixed box and is in rotary sealing connection with the fixed box; the inside of the rotary drum is coaxially provided with spiral sheets; the liquid inlet hole is communicated with the lower part in the fixed box through a liquid suction pipe, a control mechanism is arranged on the side wall of the rotary drum, and when the rotary drum rotates, the control mechanism allows soil solution to pass through; the control mechanism seals the sidewall of the drum when the drum is stationary; and an exhaust valve is arranged at the bottom of the fixed box.
2. A forestry investigation apparatus according to claim 1, wherein: a fixed block is fixed on the side wall of the rotary drum, a blind hole is formed in the fixed block, and an opening of the blind hole faces the inner side of the rotary drum; the inside of the blind hole is connected with a blocking block in a sliding and sealing manner, a second spring is arranged inside the blind hole, one end of the second spring is fixed on the blocking block, and the other end of the second spring is fixed at the bottom of the blind hole; the lower part at the middle part of blind hole is provided with the through-hole with the inside and rotary drum outside intercommunication of blind hole.
3. A forestry investigation apparatus according to claim 2, wherein: the blind holes are T-shaped blind holes.
4. A forestry investigation apparatus according to claim 1, wherein: the number of control mechanisms is set to 10-50 and is evenly distributed circumferentially about the axis of the drum.
5. A forestry investigation apparatus according to claim 1, wherein: the lower end of the drill pipe is in a round table shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110064152.8A CN112881092B (en) | 2021-01-18 | 2021-01-18 | Forestry reconnaissance device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110064152.8A CN112881092B (en) | 2021-01-18 | 2021-01-18 | Forestry reconnaissance device |
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| Publication Number | Publication Date |
|---|---|
| CN112881092A CN112881092A (en) | 2021-06-01 |
| CN112881092B true CN112881092B (en) | 2023-08-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110064152.8A Active CN112881092B (en) | 2021-01-18 | 2021-01-18 | Forestry reconnaissance device |
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| CN (1) | CN112881092B (en) |
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2021
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| CN112881092A (en) | 2021-06-01 |
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