CN116481847A

CN116481847A - Woodland soil sampler

Info

Publication number: CN116481847A
Application number: CN202310508999.XA
Authority: CN
Inventors: 孙耀清; 孙琳苒; 王欣; 刘建德; 姚建党; 李文婷; 夏曼; 赵赟; 杨策; 徐亚军; 赵春乐; 彭宸; 刘文祥; 张庆斌; 张辉
Original assignee: Xinyang Agriculture and Forestry University
Current assignee: Xinyang Agriculture and Forestry University
Priority date: 2023-05-08
Filing date: 2023-05-08
Publication date: 2023-07-25

Abstract

The invention discloses a woodland soil sampler which comprises a vehicle body, wherein a starting assembly is arranged at a handle at the top end of the vehicle body, overturning assemblies are arranged at the bottom ends of supporting legs of the vehicle body, the number of the overturning assemblies is two, and the two overturning assemblies are symmetrically arranged with the vehicle body as the center. According to the invention, through the arrangement of the positioning component, the positioning component is driven by the overturning component to connect the bottom of the vehicle body with the ground, so that the situation that the sampling component shifts or jacks up when the sand stone or hard soil surface is drilled, the sampling component is influenced to drill into the ground surface to acquire soil is avoided, and meanwhile, the situation that the vacuum environment is lost due to the shifting of the vehicle body when the sampling component drills in the vacuum environment, and the sampling environment is polluted is avoided; the existing device is positioned by pressing the sampling device by the dead weight of the device or a worker, so that the positioning is inconvenient or the worker observes the sampling work or surveys the next sampling position at any time in the drilling process of the sampling device, and the vacuum sampling environment is easy to lose during shifting.

Description

Woodland soil sampler

Technical Field

The invention relates to the technical field of samplers. In particular to a woodland soil sampler.

Background

The forest land is the forest land, the staff needs to sample the soil of the forest land regularly, detect whether each index of the soil of the forest land accords with vegetation growth needs, the soil sampler is fixed through dead weight or manpower at present, the reaction force of the sampling head is great when sampling the soil of the hard soil or the sandy soil, the sampler is shifted or the drilling progress is influenced; in addition, the sampling head is influenced by soil conditions when sampling is performed in a vacuum environment, the condition of poor sealing can occur to influence the vacuum environment, and the detection result is influenced and needs to be sampled secondarily.

Disclosure of Invention

Therefore, the technical problem to be solved by the invention is to provide a woodland soil sampler which is convenient to locate and manufacture a closed sampling environment.

In order to solve the technical problems, the invention provides the following technical scheme: the utility model provides a woodland soil sampler, includes the automobile body, the top handle department of automobile body is equipped with the start-up subassembly, the landing leg bottom of automobile body is equipped with the upset subassembly, the quantity of upset subassembly is two, two the upset subassembly is the symmetry setting as the center with the automobile body, the through-hole department at automobile body middle part is equipped with drive assembly, drive assembly's start-up end links to each other with the start-up subassembly, drive assembly's bottom is equipped with the sample subassembly, the side of sample subassembly is equipped with the auto-lock subassembly, the side of auto-lock subassembly is equipped with coupling assembling, coupling assembling's one end links to each other with the upset subassembly, the side of upset subassembly is equipped with locating component, locating component's top links to each other with the automobile body.

Above-mentioned woodland soil sampler, the subassembly that starts includes grab handle pole, sets up in the inboard spout of automobile body handle, the both ends of grab handle pole are fixed in the inboard one end of automobile body handle, the inner wall grafting of spout has slidable to press the pole, the opposite side of pressing pole and grab handle pole is fixed with reset spring, the lower surface of pressing the pole closely laminates and has the pressure plate, the one end and the drive assembly of pressure plate link to each other, the inner wall of pressure plate is fixed with the horizontal pole, the both ends of horizontal pole are fixed in the bottom of automobile body handle end inside wall.

The above-mentioned woodland soil sampler, the drive assembly includes the fixed bolster, the whole arch-shaped setting of fixed bolster, the top is the cap form setting; the bottom of fixed bolster is fixed at the upper surface of automobile body, the top of fixed bolster is fixed with electric hydraulic lifting rod, electric hydraulic lifting rod's output runs through the automobile body and links to each other with the sample subassembly, electric hydraulic lifting rod's top starts the top that the end runs through the fixed bolster and supports tightly at the lower surface of pressing plate.

Above-mentioned woodland soil sampler, the upset subassembly includes the upset horizontal pole, rotatable grafting in the landing leg inner wall of automobile body in the both ends of upset horizontal pole, the both ends side of upset horizontal pole is fixed with the movable leg, rotatable grafting in the bottom of movable leg has the universal pole, the inner wall of universal pole articulates through the pivot has the wheel, the middle part of upset horizontal pole links to each other with coupling assembling, be fixed with the toothed disc between the tip of upset horizontal pole and the coupling assembling, the side and the locating component meshing of toothed disc are connected.

Above-mentioned woodland soil sampler, coupling assembling includes three looks articulated folding rod, wherein the one end of folding rod is fixed mutually with the upset horizontal pole, and the side of folding rod one end of the other end has cup jointed the fixing base, the one end and the auto-lock subassembly of fixing base link to each other, and the other end the top of folding rod one end is fixed with the extrusion pole, the extrusion pole is located one side of auto-lock subassembly and establishes to the cambered surface, two coupling assembling's extrusion pole is located the opposite side of the electric hydraulic lifting rod in auto-lock subassembly middle part respectively.

Above-mentioned woodland soil sampler, the auto-lock subassembly is including seting up in two constant head tanks of electric hydraulic lifting rod side and cup jointing in the lifter plate of electric hydraulic lifting rod output side, the spout has been seted up to the one end that lifter plate both sides are located the extrusion pole, slidable plugboard has been pegged graft to the inner wall of spout, the plugboard is located the one end upper surface of extrusion pole and is the cambered surface setting, the plugboard is pegged graft in the side of constant head tank one end and is the cambered surface setting, and the cambered surface of adaptation in electric hydraulic lifting rod external diameter has been seted up to the one end of plugboard adjacent constant head tank, be fixed with second reset spring between the interior bottom wall of plugboard one end and spout.

Above-mentioned woodland soil sampler, locating component includes the support arm, the landing leg frame fixed connection of the top of support arm and automobile body, the inner wall grafting of support arm has the connecting rod, the top and the bottom of connecting rod all are the cap form setting, the bottom side of connecting rod has cup jointed the location awl, the side of location awl passes through the screw thread and links to each other with the gear wheel, the screw thread department at the outside top of location awl has cup jointed the tooth pole, the lower surface at the support arm is fixed at the top of tooth pole, closely laminating has third reset spring between the upper surface of connecting rod bottom and the interior roof of location awl, third reset spring cup joints the bottom side at the connecting rod, the bottom of connecting rod is fixed with the pull rod, the bottom of pull rod is the arch setting, the side of pull rod has cup jointed four springs that link to each other through ring one end, the spring uses the pull rod as the axle center partition, the one end of spring is fixed with the locating plate, the intercommunication groove of four symmetrical locating plates has been seted up to the inner wall of location awl, the one end of locating plate runs through the locating plate through the locating awl.

Above-mentioned woodland soil sampler, sampling assembly includes inside sampling tube and outer seal section of thick bamboo, the top of inside sampling tube passes through sensing assembly and links to each other with the inner wall of electric hydraulic lifting rod, the top of outer seal section of thick bamboo passes through the spiral shell arris and is connected at the surface of electric hydraulic lifting rod with the spiral shell groove cooperation, the outside of outer seal section of thick bamboo is fixed with the upper seal ring, two ring grooves have been seted up to the lower surface of upper seal ring, the inner wall of outer seal section of thick bamboo is located the lower extreme of upper seal ring and is fixed with down the seal ring, the lower surface of seal ring is established to the cambered surface down, the bottom of outer seal section of thick bamboo is connected with down the brill section of thick bamboo through spiral shell arris and spiral shell groove cooperation, a plurality of tooth grooves have all been seted up to outer seal section of thick bamboo and the lower surface down, and be located the tooth inslot side of outer seal section of thick bamboo lower surface is the inclined plane, the inside of electric hydraulic lifting rod is fixed with the negative pressure pump, the negative pressure pump links to each other with sensing assembly.

Above-mentioned woodland soil sampler, sensing subassembly is including seting up in the perpendicular groove of electric hydraulic lifting rod inside wall, the inner wall in perpendicular groove is pegged graft and is had the slidable sliding plate, the top side of sliding plate is closely laminated with the top side of negative pressure pump, just the sliding plate top side is located the start switch lower position department of negative pressure pump and establishes to the cambered surface, the bottom side of sliding plate is connected with the spliced pole through spiral shell arris and helicoid cooperation, the bottom threaded connection of spliced pole is at the top of inside sampling tube, the middle part of electric hydraulic lifting rod inner wall and the middle part of sliding plate all are fixed with the baffle, two the opposite face of baffle is fixed with fourth reset spring, and the gas vent has been seted up to the side that electric hydraulic lifting rod is located the automobile body lower surface.

The technical scheme of the invention has the following beneficial technical effects:

1. according to the invention, through the arrangement of the positioning component, the positioning component is driven by the overturning component to connect the bottom of the vehicle body with the ground, so that the situation that the sampling component shifts or jacks up when the sand stone or hard soil surface is drilled, the sampling component is influenced to drill into the ground surface to acquire soil is avoided, and meanwhile, the situation that the vacuum environment is lost due to the shifting of the vehicle body when the sampling component drills in the vacuum environment, and the sampling environment is polluted is avoided; the existing device is positioned by pressing the sampling device through the dead weight of the device or a worker, so that the positioning is inconvenient or the worker observes the sampling work or surveys the next sampling position at any time in the drilling process of the sampling device, and the vacuum sampling environment is easily lost during shifting, so that the normal operation of the sampling work is influenced.

2. According to the invention, through the arrangement of the overturning assembly, the overturning assembly is connected with the driving assembly through the self-locking assembly, and after the driving assembly moves downwards, the overturning assembly can be driven to overturn, the positioning assembly is propped against the ground to drill and position, and through the arrangement, the positioning assembly can work conveniently, and the device can be moved conveniently; the existing device is directly connected with the wheels through the support, is convenient to move but is inconvenient to position in the sampling work, so that the normal operation of the sampling work is affected.

3. According to the invention, through the arrangement of the sampling assembly, the sampling assembly is matched with the positioning assembly to fix the vehicle body in an initial movement stage, a vacuum environment is manufactured, a vacuum working space is formed after the vacuum environment is manufactured, meanwhile, through the arrangement of the teeth at the bottom of the sampling assembly and the sealing lantern rings, the ground and the bottom of the device can be closed, the top is closed with the drilling hole through the sealing lantern rings, the tightness of the vacuum environment is ensured, and the damage to the vacuum environment after the soil state of the drilling position and the drilling hole of the device is damaged is avoided; existing devices are advantageous for creating an environment at soft soil by pressing the bottom of the device directly against the ground, but it is difficult to create a vacuum environment at sandy or sand-gravel mixed ground.

Drawings

FIG. 1 is a schematic diagram of the structure of the present invention;

FIG. 2 is a schematic view of the structure of the pressing rod of the present invention;

FIG. 3 is a schematic view of the structure of the fixing bracket of the present invention;

FIG. 4 is a schematic cross-sectional view of a baffle plate of the present invention;

FIG. 5 is a schematic cross-sectional view of the elevating plate of the present invention;

FIG. 6 is a schematic cross-sectional view of the present invention;

FIG. 7 is a schematic cross-sectional view of the positioning burr of the present invention;

FIG. 8 is a schematic cross-sectional view of the present invention at the drill pipe running down;

fig. 9 is an enlarged schematic view of the structure of fig. 4 a of the present invention.

The reference numerals in the drawings are as follows: 1-a vehicle body; 2-a grab handle bar; 3-sliding grooves; 4-pressing the rod; 5-a return spring; 6-pressing the plate; 7-a cross bar; 8-fixing a bracket; 9-an electro-hydraulic lifting rod; 10-turning the cross bar; 11-movable legs; 12-universal bar; 13-wheels; 14-a gear disc; 15-folding bars; 16-a fixed seat; 17-extrusion rod; 18-positioning grooves; 19-lifting plates; 20-sliding grooves; 21-a plugboard; 22-a second return spring; 23-supporting arms; 24-connecting rods; 25-positioning a drill bit; 26-dental pole; 27-a third return spring; 28-drawing a pull rod; 29-a spring; 30-positioning plates; 31-an internal sampling tube; 32-an outer sealing cylinder; 33-upper seal ring; 34-a lower seal ring; 35-setting a drill cylinder; 36-a negative pressure pump; 37-vertical grooves; 38-a sliding plate; 39-connecting columns; 40-baffle plates; 41-fourth return spring.

Detailed Description

Referring to fig. 1, a woodland soil sampler comprises a vehicle body 1, wherein a starting assembly is arranged at a top handle of the vehicle body 1 and used as a driving switch for driving each working assembly to work by a worker; the bottom end of the supporting leg of the vehicle body 1 is provided with a turnover component which is used as an implementation piece for switching the moving and working states of the device; the number of the turnover assemblies is two, the two turnover assemblies are symmetrically arranged with the vehicle body 1 as a center, a driving assembly is arranged at a through hole in the middle of the vehicle body 1, and the driving assembly provides a power source for the movement of each assembly; the starting end of the driving assembly is connected with the starting assembly, the bottom of the driving assembly is provided with a sampling assembly, the sampling assembly is used as an implementation piece for sampling work, and a vacuum environment is created to obtain a soil sample; the side surface of the sampling assembly is provided with a self-locking assembly, and the self-locking assembly is used as a turnover assembly and a connecting switch of the positioning assembly and the sampling assembly and is used as the end of the first section of work of the device; the side of auto-lock subassembly is equipped with coupling assembling, and coupling assembling's one end links to each other with the upset subassembly, and the side of upset subassembly is equipped with locating component, and locating component's top links to each other with automobile body 1.

As shown in fig. 2, the starting component comprises a grab handle rod 2 and a chute 3 arranged on the inner side of a handle of the vehicle body 1, the chute 3 can plan the movement track of a pressing rod 4, and when the pressing rod 4 moves to the position of the grab handle rod 2, the following pressing plate 6 can be driven to wake up the driving component; the two ends of the grab handle rod 2 are fixed at one end of the inner side of the handle of the vehicle body 1, the inner wall of the chute 3 is inserted with a slidable pressing rod 4, the opposite sides of the pressing rod 4 and the grab handle rod 2 are fixed with a reset spring 5, and the reset spring provides a power source for resetting the pressing rod 4; the lower surface of the pressing rod 4 is tightly attached with a pressing plate 6, one end of the pressing plate 6 is connected with a driving assembly, a cross rod 7 is fixed on the inner wall of the pressing plate 6, and the cross rod 7 is used as the axis of rotation of the pressing plate 6; the two ends of the cross rod 7 are fixed at the bottom of the inner side wall of the handle end of the vehicle body 1.

As shown in fig. 4, the driving assembly comprises a fixed bracket 8, the fixed bracket 8 is integrally arranged in an arch shape, and the top end is arranged in a cap shape; the bottom of the fixed bracket 8 is fixed on the upper surface of the vehicle body 1, the top end of the fixed bracket 8 is fixed with an electric hydraulic lifting rod 9, and the electric hydraulic lifting rod 9 provides downward moving power so as to drive each component to work step by step; the output end of the electric hydraulic lifting rod 9 penetrates through the vehicle body 1 to be connected with the sampling assembly, and the top starting end of the electric hydraulic lifting rod 9 penetrates through the top of the fixing support 8 to be abutted against the lower surface of the pressing plate 6.

As shown in fig. 1, the turnover assembly comprises a turnover cross rod 10, wherein two ends of the turnover cross rod 10 are rotatably inserted into the inner walls of supporting legs of a vehicle body 1, movable legs 11 are fixed at two end sides of the turnover cross rod 10, universal rods 12 are rotatably inserted into the bottoms of the movable legs 11, and the universal rods 12 can ensure the rotation of wheels 13 in various directions so as to complete the turnover work and the movement work of the turnover assembly; the inner wall of the universal rod 12 is hinged with wheels 13 through a rotating shaft, the middle part of the overturning cross rod 10 is connected with a connecting component, a gear disc 14 is fixed between the end part of the overturning cross rod 10 and the connecting component, and the gear disc 14 serves as a connecting piece of the overturning component and the positioning component to play a key role; the side surface of the gear disk 14 is in meshed connection with the positioning component; the connecting component comprises three hinged folding rods 15, the folding rods 15 can move up and down through the self-locking component to drive the overturning component to work, and then drive the gear disk 14 to rotate to drive the positioning component to work; one end of a folding rod 15 at one end is fixed with the overturning cross rod 10, a side surface of one end of the folding rod 15 at the other end is sleeved with a fixing seat 16, one end of the fixing seat 16 is connected with a self-locking assembly, an extrusion rod 17 is fixed at the top of one end of the folding rod 15 at the other end, the extrusion rod 17 can extrude a plug board 21 to move after the folding rod 15 rotates to a certain angle, and the self-locking assembly and the electro-hydraulic lifting rod 9 are unlocked to ensure that the sampling assembly performs the next action; the extrusion rod 17 is arranged on one side of the self-locking assembly to form an arc surface, and the extrusion rods 17 of the two connecting assemblies are respectively arranged on the opposite sides of the electro-hydraulic lifting rod 9 in the middle of the self-locking assembly.

As shown in fig. 1 and 5, the self-locking assembly comprises two positioning grooves 18 arranged on the side surface of the electrohydraulic lifting rod 9 and a lifting plate 19 sleeved on the side surface of the output end of the electrohydraulic lifting rod 9, wherein sliding grooves 20 are arranged at one end of the extrusion rod 17 on two sides of the lifting plate 19, a slidable inserting plate 21 is inserted into the inner wall of each sliding groove 20, the inserting plate 21 is arranged on the upper surface of one end of the extrusion rod 17 and is arranged in a cambered surface manner, the side surface of one end of the inserting plate 21 inserted into the positioning groove 18 is arranged in a cambered surface manner, the cambered surface which is adapted to the outer diameter of the electrohydraulic lifting rod 9 is arranged at one end of the inserting plate 21 adjacent to the positioning groove 18, and the cambered surface arrangement can ensure that the inserting plate 21 is perfectly attached to the outer surface of the electrohydraulic lifting rod 9, so that conditions are provided for inserting the device resetting inserting plate 21 into the positioning groove 18; a second return spring 22 is fixed between one end of the plug board 21 and the inner bottom wall of the chute 20.

As shown in fig. 7, the positioning assembly comprises a supporting arm 23, the top of the supporting arm 23 is fixedly connected with a supporting leg frame of the vehicle body 1, a connecting rod 24 is inserted into the inner wall of the supporting arm 23, the top end and the bottom end of the connecting rod 24 are both in a hat shape, a positioning drill bit 25 is sleeved on the bottom side of the connecting rod 24, the side surface of the positioning drill bit 25 is connected with the gear plate 14 through a screw thread, and the screw thread integrally is in a spiral shape and matched with a tooth mouth rod 26 so as to enable the positioning drill bit 25 to rotate in the process of moving up and down, thereby completing the drilling work of the positioning drill bit 25; the tooth mouth pole 26 has been cup jointed to the screw thread department at the outside top of location awl 25, the lower surface at support arm 23 is fixed at the top of tooth mouth pole 26, closely laminate between the upper surface of connecting rod 24 bottom and the interior roof of location awl 25 has third reset spring 27, third reset spring 27 cup joints the bottom side at connecting rod 24, the bottom of connecting rod 24 is fixed with pull rod 28, the bottom of pull rod 28 is the arch setting, four springs 29 that link to each other through ring one end have been cup jointed to the side of pull rod 28, spring 29 uses pull rod 28 as the axle center partition, the one end of spring 29 is fixed with locating plate 30, the intercommunication groove of four symmetrical locating plates 30 has been seted up to the inner wall of location awl 25, the one end of locating plate 30 runs through location awl 25 through the intercommunication groove.

As shown in fig. 4 and 8, the sampling assembly comprises an inner sampling tube 31 and an outer sealing tube 32, wherein the top of the inner sampling tube 31 is connected with the inner wall of the electric hydraulic lifting rod 9 through a sensing assembly, the inner sampling tube 31 is used as a soil sampling tool, and the outer sealing tube 32 is matched with an upper sealing ring 33, a lower sealing ring 34 and a lower drilling tube 35 to complete the manufacturing of a sealed space of the inner sampling tube 31, so as to provide a foundation for sampling the inner sampling tube 31 in a vacuum environment; the top end of the outer sealing cylinder 32 is connected to the outer surface of the electric hydraulic lifting rod 9 in a matched mode through screw edges and screw grooves, an upper sealing ring 33 is fixed to the outer side of the outer sealing cylinder 32, two annular grooves are formed in the lower surface of the upper sealing ring 33, a lower sealing ring 34 is fixed to the inner wall of the outer sealing cylinder 32, the lower position of the upper sealing ring 33 is fixed to the lower position of the lower sealing ring 34, the lower surface of the lower sealing ring 34 is a cambered surface, a lower drilling cylinder 35 is connected to the bottom of the outer sealing cylinder 32 in a matched mode through screw edges and screw grooves, a plurality of tooth grooves are formed in the lower surfaces of the outer sealing cylinder 32 and the lower drilling cylinder 35, the inner sides of the tooth grooves located on the lower surface of the outer sealing cylinder 32 are inclined planes, a negative pressure pump 36 is fixed to the inner portion of the electric hydraulic lifting rod 9, and the negative pressure pump 36 is connected with a sensing component; the sensing assembly comprises a vertical groove 37 which is arranged on the inner side wall of the electro-hydraulic lifting rod 9, a sliding plate 38 which can slide is inserted into the inner wall of the vertical groove 37, and the sliding plate 38 is abutted with the ground to drive the inner sampling tube 31 to move downwards to drill soil for sampling; the top side of the sliding plate 38 is tightly attached to the top side of the negative pressure pump 36, the top side of the sliding plate 38 is arranged at the lower position of a starting switch of the negative pressure pump 36 to be a cambered surface, and the cambered surface can be arranged to drive the negative pressure pump 36 to work after the sliding plate 38 moves upwards to manufacture a vacuum environment before the inner sampling tube 31 drills into soil; the bottom side of sliding plate 38 is connected with spliced pole 39 through spiral shell arris and helicoidal groove cooperation, and the bottom threaded connection of spliced pole 39 is at the top of inside sampling tube 31, and the baffle 40 is all fixed with in the middle part of electric hydraulic lifting rod 9 inner wall and the middle part of sliding plate 38, and the opposite face of two baffles 40 is fixed with fourth reset spring 41, and the gas vent has been seted up to the side that electric hydraulic lifting rod 9 is located automobile body 1 lower surface.

The working flow is as follows: as shown in fig. 1, the vehicle body 1 is moved to the position to be sampled, the drill down barrel 35 is positioned on the soil sampling surface, then as shown in fig. 2, the finger is used for holding the pressing rod 4 to slide in the chute 3, the pressing plate 6 is driven to press the starting end of the electric hydraulic lifting rod 9, as shown in fig. 1, the output end of the electric hydraulic lifting rod 9 drives the lifting plate 19 to move downwards, the folding rod 15 drives the turning cross rod 10 to rotate, the wheels 13 move downwards as a whole of the vehicle body 1, the positioning drill bit 25 is driven to move downwards by the gear disc 14 at the moment, the positioning drill bit 26 is matched with the tooth mouth rod 26 to drill soil downwards, as shown in fig. 7, the top of the drawing rod 28 is abutted against the bottom of the positioning plate 30 after the top of the connecting rod 24 is jointed with the top of the supporting arm 23, one end of the positioning plate 30 penetrates the positioning drill bit 25 to be inserted into the soil, as shown in fig. 5, the inserting plate 21 is pressed by the pressing rod 17 shown in the figure, and then slides inwards, the plugboard 21 is separated from the chute 20, the electric hydraulic lifting rod 9 can not drive the lifting plate 19 to move downwards, then as shown in fig. 8, the lower drilling cylinder 35 abuts against the ground to cooperate with the outer sealing cylinder 32 to drill in a rotary way, the outer sealing cylinder 32 also rotates downwards to drill, when the sliding plate 38 abuts against the ground until the inner sampling cylinder 31 drills, the upper sealing ring 33 abuts against the surface of the soil drilling inlet, the lower sealing ring 34 abuts against the inner surface of the soil drilling inlet, the outer sealing cylinder 32 and the lower drilling cylinder 35 abut against and seal with the soil through the drilling tooth opening at the bottom of the outer sealing cylinder 32, after the sliding plate 38 abuts against the ground to be moved upwards, the connecting column 39 drives the inner sampling cylinder 31 to move downwards rapidly to sample, the inner sampling cylinder 31 abuts against the ground, as shown in fig. 9, the cambered surface of the sliding plate 38 presses the negative pressure pump 36 to start button extraction control to generate negative pressure, after the work is finished, the rotary inner sampling tube 31 is separated from the connecting column 39 to take down the sampled soil.

It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While the obvious variations or modifications which are extended therefrom remain within the scope of the claims of this patent application.

Claims

1. The utility model provides a woodland soil sampler, includes automobile body (1), its characterized in that, the top handle department of automobile body (1) is equipped with the start-up subassembly, the landing leg bottom of automobile body (1) is equipped with the upset subassembly, the quantity of upset subassembly is two, two the upset subassembly is the symmetry setting with automobile body (1) as the center, the through-hole department in automobile body (1) middle part is equipped with drive assembly, the start-up end of drive assembly links to each other with the start-up subassembly, drive assembly's bottom is equipped with the sample subassembly, the side of sample subassembly is equipped with auto-lock subassembly, the side of auto-lock subassembly is equipped with coupling assembling, coupling assembling's one end links to each other with the upset subassembly, the side of upset subassembly is equipped with locating component, locating component's top links to each other with automobile body (1).

2. The woodland soil sampler according to claim 1, wherein the starting assembly comprises a grab handle rod (2) and a chute (3) formed in the inner side of a handle of the vehicle body (1), two ends of the grab handle rod (2) are fixed at one end of the inner side of the handle of the vehicle body (1), a slidable pressing rod (4) is inserted into the inner wall of the chute (3), a reset spring (5) is fixed on the opposite side of the pressing rod (4) and the grab handle rod (2), a pressing plate (6) is tightly attached to the lower surface of the pressing rod (4), one end of the pressing plate (6) is connected with the driving assembly, a cross rod (7) is fixed on the inner wall of the pressing plate (6), and two ends of the cross rod (7) are fixed at the bottom of the inner side wall of the handle of the vehicle body (1).

3. A woodland soil sampler according to claim 2 and characterized in that said drive assembly comprises a fixed support (8), said fixed support (8) being integrally arched with a top end of a cap-like configuration; the bottom of fixed bolster (8) is fixed in the upper surface of automobile body (1), the top of fixed bolster (8) is fixed with electric hydraulic lifting rod (9), the output of electric hydraulic lifting rod (9) runs through automobile body (1) and links to each other with the sample subassembly, the top that electric hydraulic lifting rod (9) starts the end and runs through the top of fixed bolster (8) supports tightly at the lower surface of pressing plate (6).

4. A woodland soil sampler according to claim 3 and characterized in that the turnover assembly comprises a turnover cross rod (10), two ends of the turnover cross rod (10) are rotatably inserted into the inner walls of the supporting legs of the vehicle body (1), movable legs (11) are fixed at two end sides of the turnover cross rod (10), universal rods (12) are rotatably inserted into the bottoms of the movable legs (11), wheels (13) are hinged to the inner walls of the universal rods (12) through rotating shafts, the middle part of the turnover cross rod (10) is connected with the connecting assembly, a gear disc (14) is fixed between the end part of the turnover cross rod (10) and the connecting assembly, and the side faces of the gear disc (14) are in meshed connection with the positioning assembly.

5. The woodland soil sampler according to claim 4, wherein the connecting assembly comprises three hinged folding rods (15), one end of each folding rod (15) at one end is fixed with the overturning cross rod (10), a fixing seat (16) is sleeved on the side face of one end of each folding rod (15) at the other end, one end of each fixing seat (16) is connected with the self-locking assembly, an extrusion rod (17) is fixed at the top of one end of each folding rod (15) at the other end, one side of each extrusion rod (17) located in the self-locking assembly is provided with an arc surface, and the extrusion rods (17) of the two connecting assemblies are respectively located on opposite sides of an electro-hydraulic lifting rod (9) in the middle of the self-locking assembly.

6. The woodland soil sampler according to claim 5, characterized in that the self-locking assembly comprises two positioning grooves (18) formed in the side face of the electric hydraulic lifting rod (9) and a lifting plate (19) sleeved on the side face of the output end of the electric hydraulic lifting rod (9), wherein sliding grooves (20) are formed in two sides of the lifting plate (19) and located at one end of the extrusion rod (17), sliding inserting plates (21) are inserted into the inner walls of the sliding grooves (20), the upper surfaces of the inserting plates (21) located at one end of the extrusion rod (17) are arranged in an arc face, the inserting plates (21) are inserted into the side faces of one end of the positioning grooves (18) and are arranged in an arc face, one end of each inserting plate (21) adjacent to the positioning groove (18) is provided with an arc face which is matched with the outer diameter of the electric hydraulic lifting rod (9), and a second reset spring (22) is fixed between one end of the inserting plates (21) and the inner bottom wall of the sliding grooves (20).

7. The woodland soil sampler according to claim 6, wherein the positioning assembly comprises a supporting arm (23), the top of the supporting arm (23) is fixedly connected with a supporting leg frame of a vehicle body (1), a connecting rod (24) is inserted into the inner wall of the supporting arm (23), the top end and the bottom end of the connecting rod (24) are respectively arranged in a cap shape, a positioning drill bit (25) is sleeved at the bottom side of the connecting rod (24), the side surface of the positioning drill bit (25) is connected with a gear plate (14) through screw teeth, a tooth mouth rod (26) is sleeved at the screw teeth of the top of the outer side of the positioning drill bit (25), the top of the tooth mouth rod (26) is fixed on the lower surface of the supporting arm (23), a third return spring (27) is tightly attached between the upper surface of the bottom of the connecting rod (24) and the inner top wall of the positioning drill bit (25), a pull rod (28) is fixed at the bottom of the connecting rod (24), a pull rod (28) is arranged at the bottom of the connecting rod (24), a pull rod (28) is connected with a circular spring (29) through a four-way, one end of the pull rod (29) is connected with a positioning spring (29), the inner wall of the positioning drill bit (25) is provided with communication grooves of four symmetrical positioning plates (30), and one end of each positioning plate (30) penetrates through the positioning drill bit (25) through the communication grooves.

8. The woodland soil sampler according to claim 7, wherein the sampling assembly comprises an inner sampling tube (31) and an outer sealing tube (32), the top of the inner sampling tube (31) is connected with the inner wall of the electric hydraulic lifting rod (9) through a sensing assembly, the top of the outer sealing tube (32) is connected with the outer surface of the electric hydraulic lifting rod (9) through screw edges and screw grooves in a matched mode, an upper sealing ring (33) is fixed on the outer side of the outer sealing tube (32), two annular grooves are formed in the lower surface of the upper sealing ring (33), a lower sealing ring (34) is fixed on the inner wall of the outer sealing tube (32) in the lower position of the upper sealing ring (33), the lower surface of the lower sealing ring (34) is arranged to be an arc surface, the bottoms of the outer sealing tube (32) are connected with a lower drilling tube (35) through screw edges and screw grooves in a matched mode, a plurality of tooth grooves are formed in the lower surfaces of the outer sealing tube (32) and the lower drilling tube (35), the lower surface of the outer sealing tube (32) is located on the inner side of the outer sealing tube (32), the outer sealing tube is located on the lower surface of the outer sealing tube, the inner sealing tube is located on the inner side of the outer sealing tube, the outer sealing tube is located on the inner side of the outer sealing tube, and the outer sealing tube is connected with the electric hydraulic lifting rod (9), and the negative pressure pump is connected with the negative pressure sensing assembly.

9. The woodland soil sampler according to claim 8, characterized in that the sensing assembly comprises a vertical groove (37) formed in the inner side wall of the electric hydraulic lifting rod (9), a sliding plate (38) capable of sliding is inserted into the inner wall of the vertical groove (37), the top side of the sliding plate (38) is tightly attached to the top side of the negative pressure pump (36), the top side of the sliding plate (38) is located at the lower position of a starting switch of the negative pressure pump (36) and is provided with an arc surface, the bottom side of the sliding plate (38) is connected with a connecting column (39) through screw edges and screw grooves in a matched mode, the bottom of the connecting column (39) is connected with the top of the inner sampling tube (31) in a threaded mode, a baffle plate (40) is fixed to the middle part of the inner wall of the electric hydraulic lifting rod (9) and the middle part of the sliding plate (38), a fourth reset spring (41) is fixed to the opposite surfaces of the two baffle plates (40), and an exhaust port is formed in the side surface of the lower surface of the electric hydraulic lifting rod (9).