CN216978437U

CN216978437U - Electric root drill with quick replacement function

Info

Publication number: CN216978437U
Application number: CN202220481436.7U
Authority: CN
Inventors: 邹瑾; 王晓佳; 曹兵; 刘佳嘉; 张萍; 卞莹莹
Original assignee: Ningxia University
Current assignee: Ningxia University
Priority date: 2022-03-07
Filing date: 2022-03-07
Publication date: 2022-07-15
Anticipated expiration: 2032-03-07

Abstract

The utility model relates to an electric root drill with a quick replacement function, which comprises a fixed frame, a power device, a worm and gear speed reducer and a soil sampling assembly, wherein the fixed frame comprises a base plate and at least two supporting columns, adjacent supporting columns are arranged below the base plate in a preset interval manner, the power device and the worm and gear speed reducer are arranged on the base plate, the power device and the worm and gear speed reducer are connected through a shaft, the soil sampling assembly comprises a quick-change connector and a sampling drill cylinder, the upper end of the quick-change connector is detachably connected with the lower end of a screw rod of the worm and gear speed reducer, the lower end of the quick-change connector is detachably connected with the upper end of the sampling drill cylinder, the soil sampling assemblies with different sizes and specifications are replaced by disassembling and assembling the quick-change connector and the screw rod, the obtained sampling soil can be conveniently taken out of the sampling drill cylinder after the sampling drill cylinder and the quick-change connector are disassembled, the efficiency of soil sampling work is promoted.

Description

Electric root drill with quick replacement function

Technical Field

The utility model relates to the technical field of soil sampling equipment, in particular to an electric root drill with a quick replacement function.

Background

The plant root system, especially the fine root, is an important component of the underground carbon reservoir of the forest ecosystem. Accurate estimation of root system biomass of the ecosystem can influence the estimation effect of carbon density of the ecosystem. As for the estimation method of the root system biomass of the ecological system, a full excavation method and a root drilling method are provided. Although the full-excavation method can accurately estimate the root biomass of a single forest, the full-excavation method is limited by manpower and financial resources, particularly the full-excavation method is limited by digging out roots and destroying the forest land, and is not suitable for estimating the root biomass of the forest ecosystem by taking trees as dominant species. The root drilling method is limited by the diameter of a root drilling bit, cannot estimate thick roots, but can estimate the biomass of thin roots, and has far less destructive effect on a forest ecosystem than the full excavation method, so that the root drilling method is widely applied to the estimation of the biomass of the thin roots of the forest ecosystem.

Then appeared like application number 201921325761.9, the name "root is bored convenient to borrow and arrange soil", the scheme that its provided can provide the purpose of soil sample, but, after accomplishing soil sample, when needing to take out the soil after the sample and carry out experiment on next step, need take out the soil of sample with the spades in the ring sword of taking out with the shovel, the in-process of taking out need rotate whole device and accomplish, brings very big inconvenience for sample work.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide an electric root drill with a quick replacement function.

An electric root drill with a quick replacement function comprises a fixing frame, a power device, a worm gear speed reducer and a soil sampling assembly, wherein the fixing frame comprises a base plate and at least two supporting columns, adjacent supporting columns are arranged below the base plate in a preset interval mode, the power device and the worm gear speed reducer are arranged on the base plate, the power device is connected with the worm gear speed reducer through a shaft, the soil sampling assembly comprises a quick conversion connector and a sampling drill cylinder, the upper end of the quick conversion connector is detachably connected with the lower end of a screw rod of the worm gear speed reducer, the lower end of the quick conversion connector is detachably connected with the upper end of the sampling drill cylinder, the replacement of soil sampling assemblies with different sizes and specifications is realized through the disassembly and the assembly of the quick switching joint and the screw rod, the sampling drill cylinder is convenient to take out the obtained sampling soil from the sampling drill cylinder after being detached from the quick adapter.

Preferably, the soil sampling assembly comprises a quick-change-over joint, a bolt and a sampling drill barrel, the upper end of the quick-change-over joint is fixedly connected with the lower end of a screw rod of the worm gear speed reducer through a jackscrew bolt after being sleeved, and the bolt is inserted into the lower end of the quick-change-over joint and the upper end of the sampling drill barrel after the lower end of the quick-change-over joint is sleeved with the upper end of the sampling drill barrel.

Preferably, the sampling drill cylinder further comprises a sampling container and a push-out assembly, the top wall of the sampling drill cylinder is provided with a hollow butt joint part, the upper end of the push-out assembly is detachably connected with the hollow butt joint part, the sampling container is sleeved in the sampling drill cylinder, and the lower end of the push-out assembly is close to the top end of the sampling container.

Preferably, the pushing assembly comprises a first screw rod, a first spring, a first base and a first nut, the first base is arranged at the lower end of the first screw rod, the bottom end of the first base is fixedly connected with the bottom end of the first screw rod, the first spring is sleeved on the first screw rod, the size of the first base is larger than the diameter of the first spring, the first screw rod is inserted into the hollow butt joint part, the first base is located in the sampling drill cylinder, the first spring is located between the top wall of the sampling drill cylinder and the first base, the first nut is installed at the top end of the first screw rod, the pushing assembly is limited and fixed in the hollow butt joint part through the first nut and the first spring, and the first spring is in a compression state due to mutual extrusion of the top wall of the sampling drill cylinder and the first base.

Preferably, the pushing assembly comprises a second screw rod, a second spring, a second base and a second nut, the second screw rod is inserted into the hollow butt joint part, a third through hole is arranged on the second base, a first annular groove is arranged on the side wall of the second base, the upper end of the second screw rod and the upper end of the hollow butt joint part are fixed by the second nut, the lower end of the second screw rod extends into the sampling drill cylinder, the second spring is sleeved on the second screw rod, the lower end of the second screw rod is inserted into the third through hole after the spring is compressed, the bolt sequentially passes through the first through hole and the second through hole and then is inserted into the first annular groove, the sampling container is installed in the sampling drill cylinder, the top end of the sampling drill cylinder is close to the second fixing seat, after the bolt is sequentially pulled out of the first annular groove, the second through hole and the first through hole, the second spring pushes the second base to move towards the lower port of the sampling drill cylinder in the process of recovering deformation, so that the second base gradually separates from the lower end of the second screw rod, then the second base pushes the sampling container to gradually separate from the sampling drill cylinder in the process of moving towards the lower port of the sampling drill cylinder.

Preferably, the top wall of the quick adapter is provided with a fourth through hole, the fourth through hole is positioned right above the hollow butt joint part, the pushing assembly comprises a third screw rod, a third spring, a third base and a third nut, the third nut is fixed at the upper end of the hollow butt joint part, the top end of the third screw rod is provided with a stop block, the diameter of the stop block is larger than that of a threaded hole of the third nut, the third screw rod is inserted into the third nut and the hollow butt joint part in sequence, the third spring is sleeved on the third screw rod, the bottom end of the third screw rod is fixedly connected with the third base, the third spring is positioned between the third base and the lower end face of the hollow butt joint part, the side wall of the third base is provided with a second annular groove, and the third base is pushed to move towards the hollow butt joint part to enable the second annular groove and the first through hole, the second through holes are aligned, and the bolt sequentially penetrates through the first through hole and the second through hole and then is inserted into the second annular groove.

Preferably, the worm gear speed reducer further comprises a screw nut shaft, the screw nut shaft is installed in the speed reducer through a key, the worm gear speed reducer rotates to drive the screw to move up and down, the lower portion of the base plate is provided with a limiting support, the lower limiting buffer block is arranged on the lower side of the front end of the limiting support, the upper portion of the screw is provided with an upper safety limiting buffer block, and the lower portion of the base plate is provided with a distance detection sensor.

Preferably, the bolt comprises a bolt outer barrel, a pressing rod, a second spring and a pressing type lock tongue, an accommodating cavity is arranged in the bolt outer barrel, the extending direction of the accommodating cavity is consistent with the axial direction of the bolt, a first cavity and a second cavity are arranged in the accommodating cavity, the size of the first cavity is smaller than that of the second cavity, a step part is formed at the joint of the first cavity and the second cavity, two openings are symmetrically arranged near the front end of the bolt and communicated with the first cavity, a preset distance is reserved between the openings and the front end of the first cavity, the second spring is sleeved on the pressing rod, the pressing rod comprises a front end part and a rear end part, the appearance of the front end part is matched with the first cavity, the length of the front end part is larger than the depth of the first cavity, the appearance of the rear end part is matched with the pressing cavity, the length of the rear end part is smaller than the depth of the second cavity, and the front end of the pressing rod sequentially extends into the second cavity and the first cavity, one end of the second spring is contacted with the step part, the other end of the second spring is contacted with the end face of the rear end part, the pressing type spring bolt is inserted from one opening and then extends out of the other opening, and the front end of the pressing rod is fixedly connected with the middle of the pressing type spring bolt.

Preferably, the lower end of each support column is provided with a pedal, the lower end face of each pedal is provided with a stabilizing assembly, the stabilizing assembly is rotatably connected with the lower end face of each pedal, the stabilizing assembly is in an open state after rotating each stabilizing assembly, so that the lower end of the stabilizing assembly can be conveniently inserted into soil for soil sampling, the stabilizing assembly comprises a fixing part, a soil breaking cone, a support connecting part, a first pin shaft, a second pin shaft, a third spring and a locking and pressing part, the fixing part is a U-shaped groove, the rear end of the soil breaking cone is rotatably connected with the fixing part through the first pin shaft, the front end of the soil breaking cone can be accommodated into the fixing part to be completely folded after rotating the soil breaking cone, two side walls of the fixing part are respectively provided with a sliding groove, one end of the support connecting part is rotatably connected with the second pin shaft, the other end of the support connecting part is rotatably connected with the soil breaking cone through the third pin shaft, and two ends of the second pin shaft respectively extend out of the sliding grooves, one end of a third spring is connected with a second pin shaft, the other end of the third spring is connected with the inner wall of the fixing part, the joint of the third spring and the fixing part is close to a first pin shaft, the locking pressing part is connected with the rotating shaft of the fixing part, a torsional spring is installed on the pivoting shaft of the locking pressing part, one end of the torsional spring abuts against the inner wall of the locking pressing part, the other end of the torsional spring abuts against the inner wall of the fixing part, one end of the locking pressing part is provided with a bayonet, one end of the locking pressing part, which is provided with the bayonet, is normally close to the top wall of the fixing part under the condition of no external force action through the torsional spring, the first pin shaft is close to one end of the fixing part, and the pivoting shaft of the locking pressing part is close to the other end of the fixing part.

Preferably, the non-slip mat is mounted on the upper end surface of the pedal, the two handles are further arranged on the upper end surface of the base plate, the two handles are symmetrically arranged on the upper end surface of the base plate, and the handles are rotatably arranged on the upper end surface of the base plate.

In the above-mentioned electronic root is bored with quick replacement function, quick crossover sub's upper end and the lead screw lower extreme of turbine worm speed reducer are connected with the detachable mode, quick crossover sub's lower extreme and the upper end that the section of thick bamboo was bored in the sample are connected with the detachable mode, realize the change of the soil sampling subassembly of different dimensions through quick crossover sub and lead screw dismouting, bore a section of thick bamboo through the sample and be convenient for after dismantling with quick crossover sub with the sample soil that obtains and take out from the sample bores a section of thick bamboo fast, promote the efficiency of soil sampling work.

Drawings

Fig. 1 is a perspective view of the present invention.

Fig. 2 is a front view of fig. 1.

Fig. 3 is a cross-sectional view at a-a in fig. 2.

FIG. 4 is a front view of a soil sampling assembly.

Fig. 5 is a sectional view at B-B in fig. 4.

FIG. 6 is a cross-sectional view of the quick-change coupling and sampling drill barrel disassembled.

Fig. 7 is a cross-sectional view of a second embodiment of a push-out assembly and installed in the present invention.

Fig. 8 is a cross-sectional view of a third embodiment of a push-out assembly and installed in the present invention.

Figure 9 is a cross-sectional view of the latch.

Figure 10 is a cross-sectional view of the latch outer barrel.

Figure 11 is a block diagram of the deployed state of the stabilizing assembly.

Figure 12 is a block diagram of the collapsed state of the stabilizing assembly.

In the figure: the electric root drill 100 with the quick replacement function, the fixing frame 10, the base plate 11, the handle 111, the support column 12, the pedal 121, the stabilizing component 122, the fixing component 1221, the sliding groove 12211, the ground breaking cone 1222, the support connector 1223, the first pin 1224, the second pin 1225, the third pin 1226, the third spring 1227, the locking and pressing component 1228, the bayonet 12281, the torsion spring 1229, the anti-slip pad 123, the power device 20, the power source 21, the operation box 22, the forward rotation button 221, the reverse rotation button 222, the pause button 223, the emergency stop button 224, the worm gear reducer 30, the lead screw 31, the jackscrew bolt 32, the lead screw nut shaft 33, the limit bracket 34, the lower limit buffer 35, the upper safety limit buffer 36, the distance detection sensor 37, the soil sampling component 40, the quick change-over joint 41, the first through hole 411, the fourth through hole 412, the second through hole 420 of the sampling drill cylinder 42, the sampling container 421, the push-out component 422, the push-out component, The spring bolt comprises a first screw 4221, a first spring 4222, a first base 4223, a first nut 4224, a second screw 4225, a second spring 4226, a second base 4227, a third through hole 42271, a first annular groove 42272, a second nut 4228, a third screw 42201, a third spring 42202, a third base 42203, a third nut 42204, a stop 42205, a second annular groove 42206, a disc plate 42207, a hollow butt joint part 423, a plug 43, a plug outer cylinder 431, a pressing rod 432, a second spring 433, a containing cavity 4311, a first cavity 4312, a second cavity 4313, a stepped part 4314, an opening 4315 and a pressing type lock tongue 434.

Detailed Description

The technical solution and the technical effect of the embodiments of the present invention will be further described in detail with reference to the accompanying drawings.

Referring to fig. 1 to 3, an electric root drill 100 with a quick replacement function includes a fixing frame 10, a power device 20, a worm gear speed reducer 30 and a soil sampling assembly 40, the fixing frame 10 includes a base plate 11 and at least two supporting columns 12, the adjacent supporting columns 12 are disposed below the base plate 11 at predetermined intervals, the power device 20 and the worm gear speed reducer 30 are mounted on the base plate 11, the power device 20 and the worm gear speed reducer 30 are connected by a shaft, the soil sampling assembly 40 includes a quick adapter 41 and a sampling drill cylinder 42, an upper end of the quick adapter 41 is detachably connected with a lower end of a screw rod 31 of the worm gear speed reducer 30, a lower end of the quick adapter 41 is detachably connected with an upper end of the sampling drill cylinder 42, the quick switching joint 41 is assembled and disassembled with the screw rod 31, so that the soil sampling assembly 40 with different sizes and specifications can be replaced. The sampling drill cylinder 42 is detached from the quick adapter 41 to take out the obtained sampling soil from the sampling drill cylinder 42, the soil can be taken out only by rotating the sampling drill cylinder 42, and the soil sample does not need to be taken out by turning the whole electric root drill 100 with the quick replacement function.

Referring to fig. 1 to 3, the soil sampling assembly 40 further includes a plug 43, a first through hole 411 is disposed on a side wall of the quick connector 41, the first through hole 411 is close to a lower port of the quick connector 41, a second through hole 420 is disposed on a side wall of the sampling drill cylinder 42, and the second through hole 420 is close to a top end of the sampling drill cylinder 42; the upper end of the quick change-over joint 41 is fixedly connected with the lower end of the screw rod 31 of the worm gear speed reducer 30 through the jackscrew bolt 32 after being sleeved, the lower end of the quick change-over joint 41 is sleeved with the upper end of the sampling drill cylinder 42, the bolt 43 is inserted into the sleeved part of the lower end of the quick change-over joint 41 and the upper end of the sampling drill cylinder 42, and the bolt 43 can be operated to enable the bolt 43 to be quickly pulled out or inserted from the sleeved part of the lower end of the quick change-over joint 41 and the upper end of the sampling drill cylinder 42, so that the quick disassembly and assembly of the sampling drill cylinder 42 and the quick change-over joint 41 are realized. The lower extreme of a sample brill section of thick bamboo 42 sets up annular sawtooth, rotates the plant rhizome in the cutting soil and then promotes the efficiency of soil sampling through annular sawtooth.

Referring to fig. 4 to 5, the sampling drill cylinder 42 further includes a sampling container 421 and a push-out component 422, the top wall of the sampling drill cylinder 42 is provided with a hollow abutting portion 423, the upper end of the push-out component 422 is detachably connected with the hollow abutting portion 423, the sampling container 421 is sleeved in the sampling drill cylinder 42, the upper end of the push-out component 422 is detachably connected with the top wall of the sampling drill cylinder 42, and the lower end of the push-out component 422 is close to the top end of the sampling container 421. Before sampling, the lower end of the pushing assembly 422 and the top end of the sampling container 421 may or may not be in contact. After soil sampling is completed, the latch 43 is pulled out, the sampling drill cylinder 42 is separated from the quick change-over joint 41, the push-out component 422 is detached from the hollow butt joint part 423, and then the push-out component 422 and the sampling container 421 are pushed from the top end of the push-out component 422 to gradually withdraw from the lower port of the sampling drill cylinder 42.

In the first embodiment of the pushing assembly, referring to fig. 4 to 6, the pushing assembly 422 includes a first screw 4221 and a first spring 4222, the sampling drill comprises a first base 4223 and a first nut 4224, the lower end of a first screw 4221 is provided with the first base 4223, the first base 4223 is disc-shaped, the first base 4223 is fixedly connected with the bottom end of the first screw 4221, a first spring 4222 is sleeved on the first screw 4221, the size of the first base 4223 is larger than the diameter of the first spring 4222, the first screw 4221 is inserted into a hollow butt joint part, the first base 4223 is positioned in a sampling drill cylinder, the first spring 4222 is positioned between the top wall of the sampling drill cylinder 42 and the first base 4223, the top end of the first screw 4221 is provided with the first nut 4224, the first nut 4224 is positioned at the upper end of the hollow butt joint part 423, the first nut 4224 and the first spring 4222 push out a component limit 422 to be fixed on the hollow butt joint part 423, and the first spring 4222 is in a compression state under the mutual extrusion of the top wall of the sampling drill cylinder 42 and the first base 4223. After the sampling drill cylinder 42 drives the sampling container 421 to drill the soil to be sampled, the plug 43 is pulled out from the joint between the fast adapter 41 and the sampling drill cylinder 42, the sampling drill cylinder 42 is separated from the fast adapter 41, the first nut 4224 is loosened at this time, the first nut 4224 is separated from the end of the first screw 4221, the two ends of the first spring 4222 in the extruding state respectively push the inner side of the top wall of the sampling drill cylinder 42 and the outer side of the first base 4223, the first base 4223 drives the first screw 4221 to move together towards the lower port of the sampling drill cylinder 42, the first base 4223 pushes the sampling container 421 to move towards the lower port of the sampling drill cylinder 42, the sampling container is separated from the sampling drill cylinder 42, the sampling container 421 is quickly separated from the sampling drill cylinder 42 through the push-out assembly 422, and the taking-out speed of the sampling container 421 is effectively improved. Sampling container 421 can adopt disposable plastic products, in order to make sampling container 421 be convenient for install in sample brill section of thick bamboo 42, sampling container 421 is the top little and the big frustum form in bottom, sampling container 421's top sets up confined roof, sampling container 421's bottom sets up the opening, after a sampling container 421 accomplishes the sample, when the soil sample to different destinations is needed, only need to change reserve vacant sampling container 421 can, paste the mark to sampling container 421 that has accomplished the sample simultaneously, this mark content is including the sample place, information such as time, need not to place the soil after the sample work such as mark again in other containers, the convenience of sample has been promoted.

In a second embodiment of the push-out assembly, referring to fig. 7, the push-out assembly 422 includes a second screw 4225, a second spring 4226, a second base 4227 and a second nut 4228, the second screw 4225 is inserted into the hollow docking portion 423, the second base 4227 is provided with a third through hole 42271, a side wall of the second base 4227 is provided with a first annular slot 42272, the second nut 4228 fixes an upper end of the second screw 4225 and an upper end of the hollow docking portion 423 such that the second screw 4225 cannot move relative to the hollow docking portion 423, a lower end of the second screw 4225 extends into the sampling drill cylinder 42, the second spring 4226 is sleeved on the second screw 4225, a lower end of the second screw 4225 is inserted into the third through hole 42271 after the second spring 4226 is compressed, the bolt 43 is inserted into the first annular slot 42272 after sequentially passing through the first through hole 411 and the second through hole 420, the quick change-over joint and the sampling drill cylinder 42 are fixed by the bolt 43, and the second screw 4227 is locked in the sampling drill cylinder 4227, the sampling container 421 is installed in the sampling drill cylinder 42, the top end of the sampling drill cylinder 42 is close to the second fixed seat, after the bolt 43 is sequentially pulled out from the first annular slot 42272, the second through hole 420 and the first through hole 411, the second spring 4226 pushes the second base 4227 to move towards the lower port of the sampling drill cylinder 42 in the process of restoring deformation, so that the second base 4227 is gradually separated from the lower end of the second screw 4225, and then the second base 4227 pushes the sampling container 421 to gradually separate from the sampling drill cylinder 42 in the process of moving towards the lower port of the sampling drill cylinder 42.

In a third embodiment of the push-out assembly, referring to fig. 8, a fourth through hole 412 is disposed on a top wall of the quick coupling 41, the fourth through hole 412 is located right above the hollow docking portion 423, the push-out assembly 422 includes a third screw 42201, a third spring 42202, a third base 42203 and a third nut 42204, the third nut 42204 is fixed on an upper end of the hollow docking portion 423, a stopper 42205 is disposed on a top end of the third screw 42201, a diameter of the stopper 42205 is larger than a diameter of a threaded hole of the third nut 42204, the third screw 42201 is inserted from the third nut 42204 and the hollow docking portion 423 in sequence, the third spring 42202 is sleeved on the third screw 42201, a bottom end of the third screw 42201 is fixedly connected with the third base 42203, the third spring 42202 is located between the third base 42203 and a lower end surface of the hollow docking portion 423, a second annular slot 42206 is disposed on a side wall of the third base 42203, and pushes the third base 42203 to move toward the hollow docking portion 42206 and then make the first annular slot 42206 and the first annular slot 411, The second through holes 420 are aligned, the latch 43 is inserted into the second annular groove 42206 after passing through the first through hole 411 and the second through hole 420 in sequence, at this time, the third spring 42202 is in a compressed state, the upper end of the third screw 42201 extends into the fourth through hole 412, the bolt 43 is used for fixing the quick change-over joint 41 and the sampling drill cylinder 42, and simultaneously, the third base 42203 is further locked in the sampling drill barrel 42 by the latch 43, the sampling container 421 is installed in the sampling drill barrel 42, the top end of the sampling container 421 is close to the third base 42203, after the latch 43 is pulled out from the second annular slot 42206, the second through hole 420 and the first through hole 411 in sequence, the third spring 42202 pushes the third seat 42203 to move towards the lower port of the sampling drill cylinder 42 during the deformation recovery process, so that the third seat 42203 drives the third screw 42201 to slide along the hollow butt joint part 423, the third seat 42203 then pushes the sample container 421 out of the sampling drill cylinder 42 gradually as it moves toward the lower port of the sampling drill cylinder 42. Furthermore, in order to prevent the top wall of the plastic material from being broken and the sampling soil from being scattered during the pushing of the sampling vessel 421, the disc plate 42207 is fixedly installed at the bottom end of the third base 42203, and the diameter of the disc plate 42207 is consistent with that of the top wall of the sampling vessel 421, so that the top wall of the sampling vessel 421 is not easily broken during the pushing process by the disc plate 42207. Furthermore, in order to rapidly take out the soil from the sampling container 421, a preset spacing opening is arranged on the side wall of the sampling container 421, and after the sampling is completed and the side wall of the sampling container 421 is separated along the preset spacing opening, the soil after sampling can be conveniently and completely taken out.

Further, referring to fig. 9 to 10, the latch 43 includes a latch outer cylinder 431, a pressing rod 432, a second spring 433 and a pressing type latch 434, a receiving cavity 4311 is disposed in the latch outer cylinder 431, an extending direction of the receiving cavity 4311 is identical to an axial direction of the latch 43, a first cavity 4312 and a second cavity 4313 are disposed in the receiving cavity 4311, a size of the first cavity 4312 is smaller than a size of the second cavity 4313, a step 4314 is formed at a junction of the first cavity 4312 and the second cavity 4313, two openings 4315 are disposed near a front end of the latch 43, the two openings 4315 are symmetrically disposed, the two openings 4315 are both communicated with the first cavity 4312, a predetermined distance is formed between the opening 4315 and a front end of the first cavity 4312, the pressing rod 432 is sleeved with the second spring 433, the pressing rod 432 includes a front end 4321 and a rear end 4322, an outer shape of the front end 4321 is matched with the first cavity 4312, a length of the front end 4321 is greater than a depth of the first cavity 4312, the shape of the rear end 4322 matches the second cavity 4313, the length of the rear end 4322 is smaller than the depth of the second cavity 4313, the front end of the pressing rod 432 sequentially extends into the second cavity 4313 and the first cavity 4312, one end of the second spring 433 contacts the step 4314, the other end of the second spring 433 contacts the end surface of the rear end 4322, the pressing latch 434 extends from one opening 4315 and the other opening 4315 after being inserted into the other opening, the front end of the pressing rod 432 is fixedly connected with the middle of the pressing latch 434, the front end of the pressing rod 432 pushes the two ends of the pressing latch 434 to gradually taper back into each opening 4315 by pressing the rear end of the pressing rod 432, and the latch 43 is pulled to separate from the latch hole at the joint of the quick change-over connector 41 and the sampling drill barrel 42. The latch 43 is a push type latch.

Referring to fig. 11, the worm gear reducer 30 further includes a screw nut shaft 33, the screw nut shaft 33 is installed in the reducer through a key, the worm gear reducer 30 rotates to drive the screw rod 31 to move up and down, in order to ensure the safety of the up-and-down stroke of the screw rod 31, a limit bracket 34 is arranged at the lower part of the base plate 11, a lower limit buffer block 35 is arranged at the lower side of the front end of the limit bracket 34, an upper safety limit buffer block 36 is arranged at the upper part of the screw rod 31, and when the screw rod 31 rotates to drive the soil sampling assembly 40 to move upwards, the upper end of the soil sampling assembly 40 is contacted with the lower limiting buffer block 35, and then the soil sampling assembly 40 can be buffered and prevented from further rising, so that the upper end of the soil sampling assembly 40 is prevented from directly colliding with the lower end surface of the base plate 11, in the process that the screw rod 31 rotates to drive the soil sampling assembly 40 to move downwards, the upper safety limiting buffer block 36 at the top end of the screw rod 31 is firstly contacted with the upper end face of the substrate 11, so that the screw rod 31 can be buffered to directly collide with the upper end face of the substrate 11; in addition, a distance detecting sensor 37 is disposed under the base plate 11, and the distance detecting sensor 37 is used to detect the elevation height and sampling depth of the soil sampler 40.

Further, referring to fig. 1, the power device 20 is a motor, the power device 20 further includes a power source 21 and an operation box 22, the operation box 22 is electrically connected to the power source 21 and the motor, the operation box 22 is provided with a forward rotation button 221, a reverse rotation button 222, a pause button 223 and an emergency stop button 224, the forward rotation of the motor is controlled by the forward rotation button 21 of the operation box 22, the motor drives the screw rod 31 of the worm gear speed reducer 30 to rotate and extend towards the ground at the same time after forward rotation, the soil sampling assembly 40 is driven to rotate towards the ground during the rotation of the screw rod 31 and drill into the soil to be sampled, after the soil sampling assembly 40 extends into the soil depth to be acquired, the reversing button 22 on the operation box 22 is operated, the motor reversely rotates to drive the screw rod 31 to rotate and retract, and the soil sampling assembly 40 rotates under the drive of the screw rod 31 to separate from the soil to finish soil sampling; the pause button 223 can stop the motor from working at any time; in an emergency, the motor stops when the emergency stop button 224 is pressed, and the motor does not rotate when other buttons are operated after the emergency stop button 224 is pressed, so that the aim of safe operation is fulfilled.

Please refer to fig. 3, fig. 11 and fig. 12, the lower end of each support column 12 is provided with a pedal 121, the lower end surface of each pedal 121 is provided with a stabilizing component 122, the stabilizing component 122 is rotatably connected with the lower end surface of the pedal 121, an open state is formed after each stabilizing component 122 is rotated so that the lower end of the stabilizing component 122 can be inserted into the soil for soil sampling, so as to fix the soil sampling device, after the soil sampling is completed, each stabilizing component 122 is rotated to enable each stabilizing component 122 to be attached to the lower end surface of the pedal 121 to form a folded state, the soil sampling device is convenient to carry during the soil sampling process, the clothes of soil sampling workers are prevented from being scraped due to the fact that the lower end of the stabilizing component 122 is opened, and the condition that the workers are injured due to the opening of the lower end of the stabilizing component 122 is avoided.

Further, referring to fig. 3, 11 and 12, the stabilizing assembly 122 includes a fixing member 1221, a ground-breaking cone 1222, a support connector 1223, a first pin 1224, a second pin 1225, a third pin 1226, a third spring 1227 and a locking and pressing member 1228, the fixing member 1221 is a U-shaped groove, the rear end of the ground-breaking cone 1222 and the fixing member 1221 are rotatably connected by the first pin 1224, the front end of the ground-breaking cone 1222 can be accommodated in the fixing member 1221 to be folded after the ground-breaking cone 1222 is rotated, sliding grooves 12211 are respectively disposed on both side walls of the fixing member 1221, one end of the support connector 1223 is rotatably connected to the second pin 1225, the other end of the support connector 1223 is rotatably connected to the ground-breaking cone 1226, both ends of the second pin 1225 respectively extend from the sliding grooves 12211, one end of the third spring 1227 is connected to the second pin 1225, the other end of the third spring 1227 is connected to the inner wall of the fixing member 1221, a connection position of the fixing member 1227 and the fixing member 1224 is close to the first pin 1224, the locking pressing piece 1228 is connected with the fixing piece 1221 in a rotating shaft mode, a torsion spring 1229 is installed on a pivoting shaft of the locking pressing piece 1228, one end of the torsion spring 1229 abuts against the inner wall of the locking pressing piece 1228, the other end of the torsion spring 1229 abuts against the inner wall of the fixing piece 1221, a bayonet 12281 is arranged at one end of the locking pressing piece 1228, one end, provided with the bayonet 12281, of the locking pressing piece 1228 is always close to the top wall of the fixing piece 1221 through the torsion spring 1229 under the condition that no external force acts on the end of the locking pressing piece 1228, the first pin 1224 is close to one end of the fixing piece 1221, and the pivoting shaft of the locking pressing piece 1228 is close to the other end of the fixing piece 1221. The third spring 1227 pulls the second pin 1225 to make the second pin 1225 slide along the sliding groove 12211, the second pin 1225 pushes one end of the supporting and connecting member 1223 to slide along the sliding groove 12211 through the second pin 1225 in the process of sliding along the sliding groove 12211, the other end of the supporting and connecting member 1223 pushes the third pin 1226, and the third pin 1226 pushes the soil breaking cone 1222 to make the soil breaking cone 1222 rotate to the unfolded state by taking the first pin 1224 as an axis. In the unfolded state, the operator stands on the pedal 121 to insert the tip of the soil-breaking cone 1222 into the ground, so that the fixing frame 10 is stabilized on the ground, and soil sampling is facilitated. After the soil sampling is completed, the soil-breaking awl 1222 is stored in the fixing member 1221 in response to the rotation of the operator, the fixing member 1221 pushes the third pin 1226 in the rotation process, the third pin 1226 pushes the support connector 1223, the support connector 1223 pushes the second pin 1225 to slide the second pin 1225 along the sliding groove 12211, the second pin 1225 slides along the sliding groove 12211 against the end of the locking and pressing member 1228 to rotate the locking and pressing member 1228, the second pin 1225 enters the bayonet 12281, the torsion spring 1229 recovers to deform to apply a force to the locking and pressing member 1228 to rotate the bayonet 12281 toward the second pin 1225, so that the second pin 1225 is hooked by the bayonet 12281, the folded and stored state of the soil-breaking awl 1222 is completed, the folded and stored stable assembly 122 completely enters the fixing member 1221 due to the tip of the soil-breaking awl 1222, and the operator carries the utility model without the tip of the soil-breaking awl 1222 piercing clothes, And to injure the carrying person.

Further, please refer to fig. 3, a non-slip mat 123 is installed on the upper end surface of the pedal plate 121, during the soil sampling process, an operator needs to stand on the pedal plate 121, and stand on the non-slip mat 123, and under the condition that the motor is turned on to drive the sampling drill cylinder 42 to rotate to generate vibration, the non-slip mat 123 and the sole have a large friction force, so that the operator cannot slip off from the pedal plate 121, and the fixing frame 10 is more stable, thereby facilitating the smooth soil sampling.

Referring to fig. 1, for carrying convenience, two handles 111 are further disposed on the upper end surface of the substrate 11, the two handles 111 are symmetrically disposed on the upper end surface of the substrate 11, and two operators respectively hold one handle 111 to facilitate moving the device. The handle 111 is rotatably disposed on the upper end surface of the base plate 11, and when the handle 111 needs to be moved, the handle 111 is rotated to be vertically erected for holding, and when the handle does not need to be moved, the handle 111 can automatically rotate to abut against the upper end surface of the base plate 11.

Claims

1. The utility model provides an electronic root is bored with quick replacement function which characterized in that: including the mount, power device, worm gear speed reducer machine and soil sampling subassembly, the mount includes base plate and two at least support columns, adjacent support column sets up in the base plate below with preset spaced mode, install power device and worm gear speed reducer machine on the base plate, hub connection between power device and the worm gear speed reducer machine, soil sampling subassembly includes quick crossover sub and sample drill barrel, quick crossover sub's upper end and the lead screw lower extreme of worm gear speed reducer machine are connected with the detachable mode, quick crossover sub's lower extreme and the upper end of sample drill barrel are connected with the detachable mode, realize the change of the soil sampling subassembly of different size specifications through quick crossover sub and lead screw dismouting, be convenient for take out the sample soil that obtains in the sample drill barrel after dismantling through sample drill barrel and quick crossover sub.

2. The electric root drill with quick replacement function according to claim 1, wherein: the soil sampling assembly comprises a quick adapter, a bolt and a sampling drill barrel, the upper end of the quick adapter is fixedly connected with the lower end of a screw rod of the worm gear speed reducer through a jackscrew bolt after being sleeved, and the bolt is inserted into the lower end of the quick adapter and the upper end of the sampling drill barrel after the lower end of the quick adapter and the upper end of the sampling drill barrel are sleeved.

3. The electric root drill with quick replacement function according to claim 2, wherein: the sampling drill cylinder further comprises a sampling container and a push-out assembly, the top wall of the sampling drill cylinder is provided with a hollow butt joint part, the upper end of the push-out assembly is detachably connected with the hollow butt joint part, the sampling container is sleeved in the sampling drill cylinder, and the lower end of the push-out assembly is close to the top end of the sampling container.

4. The electric root drill with quick replacement function according to claim 3, wherein: the push-out assembly comprises a first screw rod, a first spring, a first base and a first nut, the lower end of the first screw rod is provided with the first base, the bottom end of the first base is fixedly connected with the bottom end of the first screw rod, the first spring is sleeved on the first screw rod, the size of the first base is larger than the diameter of the first spring, the first screw rod is inserted into the hollow butt joint part, the first base is located in the sampling drill cylinder, the first spring is located between the top wall of the sampling drill cylinder and the first base, the first nut is installed at the top end of the first screw rod, the push-out assembly is limited and fixed in the hollow butt joint part through the first nut and the first spring, and the first spring is in a compression state due to the fact that the top wall of the sampling drill cylinder and the first base are mutually extruded.

5. The electric root drill with quick replacement function according to claim 3, wherein: the pushing assembly comprises a second screw rod, a second spring, a second base and a second nut, the second screw rod is inserted into the hollow butt joint part, a third through hole is formed in the second base, a first annular groove is formed in the side wall of the second base, the upper end of the second screw rod and the upper end of the hollow butt joint part are fixed by the second nut, the lower end of the second screw rod extends into the sampling drill cylinder, the second spring is sleeved on the second screw rod, the lower end of the second screw rod is inserted into the third through hole after the spring is compressed, the bolt sequentially penetrates through the first through hole and the second through hole and then is inserted into the first annular groove, the sampling container is installed in the sampling drill cylinder, the top end of the sampling drill cylinder is close to the second fixed seat, the bolt is sequentially pulled out of the first annular groove, the second through hole and the first through hole, the second spring pushes the second base to move towards the lower port of the sampling drill cylinder in the process of restoring deformation, and the second base is gradually separated from the lower end of the second screw rod, and then the second base pushes the sampling container to gradually separate from the sampling drill cylinder in the process of moving towards the lower port of the sampling drill cylinder.

6. The electric root drill with quick replacement function according to claim 3, wherein: the top wall of the quick adapter is provided with a fourth through hole, the fourth through hole is positioned right above the hollow butt joint part, the pushing assembly comprises a third screw, a third spring, a third base and a third nut, the third nut is fixed at the upper end of the hollow butt joint part, the top end of the third screw is provided with a stop block, the diameter of the stop block is larger than that of a threaded hole of the third nut, the third screw is inserted into the third nut and the hollow butt joint part in sequence, the third spring is sleeved on the third screw, the bottom end of the third screw is fixedly connected with the third base, the third spring is positioned between the third base and the lower end surface of the hollow butt joint part, the side wall of the third base is provided with a second annular groove, and the third base is pushed to move towards the hollow butt joint part to enable the second annular groove and the first through hole, the second through holes are aligned, and the bolt sequentially penetrates through the first through hole and the second through hole and then is inserted into the second annular groove.

7. The electric root drill with quick replacement function according to any one of claims 1 to 6, wherein: the worm gear speed reducer further comprises a lead screw nut shaft, the lead screw nut shaft is installed in the speed reducer through a key, the worm gear speed reducer rotates to drive a lead screw to move up and down, a limiting support is arranged on the lower portion of the base plate, a lower limiting buffer block is arranged on the lower side of the front end of the limiting support, an upper safety limiting buffer block is arranged on the upper portion of the lead screw, and a distance detection sensor is arranged on the lower portion of the base plate.

8. The electric root drill with quick replacement function according to claim 7, wherein: the bolt comprises a bolt outer barrel, a pressing rod, a second spring and a pressing type lock tongue, an accommodating cavity is arranged in the bolt outer barrel, the extending direction of the accommodating cavity is consistent with the axial direction of the bolt, a first cavity and a second cavity are arranged in the accommodating cavity, the size of the first cavity is smaller than that of the second cavity, a step part is formed at the joint of the first cavity and the second cavity, two openings are symmetrically arranged near the front end of the bolt and are communicated with the first cavity, the openings and the front end of the first cavity are at a preset distance, the second spring is sleeved on the pressing rod, the pressing rod comprises a front end part and a rear end part, the appearance of the front end part is matched with the first cavity, the length of the front end part is larger than the depth of the first cavity, the appearance of the rear end part is matched with the second cavity, the length of the rear end part is smaller than the depth of the second cavity, and the front end of the pressing rod sequentially extends into the second cavity and the first cavity, one end of the second spring is contacted with the step part, the other end of the second spring is contacted with the end face of the rear end part, the pressing type spring bolt is inserted from one opening and then extends out from the other opening, and the front end of the pressing rod is fixedly connected with the middle of the pressing type spring bolt.

9. The electric root drill with quick replacement function according to claim 8, wherein: the lower end of each support column is provided with a pedal, the lower end face of each pedal is provided with a stabilizing assembly, the stabilizing assembly is rotatably connected with the lower end face of each pedal, an open state is formed after each stabilizing assembly is rotated, the lower end of each stabilizing assembly is convenient to insert into soil for soil sampling, each stabilizing assembly comprises a fixing part, a ground breaking cone, a support connecting part, a first pin shaft, a second pin shaft, a third spring and a locking and pressing part, each fixing part is a U-shaped groove, the rear end of the ground breaking cone is rotatably connected with the fixing part through the first pin shaft, the front end of the ground breaking cone can be accommodated into the fixing part to complete folding after the ground breaking cone is rotated, two side walls of each fixing part are respectively provided with a sliding groove, one end of each support connecting part is rotatably connected with the second pin shaft, the other end of each support connecting part is rotatably connected with the ground breaking cone through the third pin shaft, two ends of the second pin shafts respectively extend out of the sliding grooves, and one end of the third spring is connected with the second pin shafts, the other end of the third spring is connected with the inner wall of the fixing part, the joint of the third spring and the fixing part is close to the first pin shaft, the locking pressing part is connected with the rotating shaft of the fixing part, a torsion spring is installed on the pivot shaft of the locking pressing part, one end of the torsion spring abuts against the inner wall of the locking pressing part, the other end of the torsion spring abuts against the inner wall of the fixing part, one end of the locking pressing part is provided with a bayonet, one end of the locking pressing part, which is provided with the bayonet, is often close to the top wall of the fixing part through the torsion spring under the condition of no external force, the first pin shaft is close to one end of the fixing part, and the pivot shaft of the locking pressing part is close to the other end of the fixing part.

10. The electric root drill with quick replacement function of claim 9, wherein: the upper end surface of the pedal is provided with the non-slip mat, the upper end surface of the base plate is also provided with two handles, the two handles are symmetrically arranged on the upper end surface of the base plate, and the handles are rotatably arranged on the upper end surface of the base plate.