CN217561021U

CN217561021U - Deep soil distributed collector with freezing function

Info

Publication number: CN217561021U
Application number: CN202221663130.XU
Authority: CN
Inventors: 夏辉; 郭俊刚; 程鹏举; 卢邦稳
Original assignee: Zhengzhou Institute of Multipurpose Utilization of Mineral Resources CAGS
Current assignee: Zhengzhou Institute of Multipurpose Utilization of Mineral Resources CAGS
Priority date: 2022-06-30
Filing date: 2022-06-30
Publication date: 2022-10-11
Anticipated expiration: 2032-06-30

Abstract

The utility model discloses a deep soil distributed collector with freezing function, relate to environmental pollution investigation technical field, install in the top of tracked vehicle and be used for driving the vertical underdrill that the drilling rod bored into to the soil layer and support drive unit, install jointly in the bottom of drilling rod and inside and be used for distributed sample and freeze the horizontal sample refrigeration drive unit who prevents organic pollutant volatilization to the soil of taking a sample, this collector has still carried on the drilling rod and has set up the structure that is used for horizontal extension to gather deep soil layer soil sample all around, one time vertical underdrill has been realized, gather the soil sample of a plurality of positions on every side simultaneously, need not to utilize large-scale drilling equipment to go on many times and underdrill and obtain the multiple spot soil sample, in addition, when gathering the multiple spot sample all around, still be equipped with liquid nitrogen refrigerating system, can freeze the preservation to the organic pollutant of volatilizing completely or semi-volatility in the soil, improve the validity that soil sample gathered.

Description

Deep soil distributed collector with freezing function

Technical Field

The utility model relates to an environmental pollution investigation technical field specifically is a distributed collector of deep soil with freezing function.

Background

In recent years, china has achieved remarkable performance in the development of social economy. However, the vigorous development of the industries such as industry, agriculture, mining industry, transportation industry and the like aggravates the contradiction between human beings and the environment. Associated pollutants caused by unreasonable production and development activities are gradually gathered into the nearby soil environment, so that the environmental quality of the soil is gradually reduced, heavy metals exceed the standard, the problem of soil pollution environment which cannot be ignored is formed, and the balance of a local ecological system and the health safety of human beings are threatened.

Soil pollution investigation is the first important link to solve environmental problems. The accuracy of the soil survey results is dependent on the representativeness of the collected soil samples. For this reason, "quincunx compound" sampling is generally performed, that is, a plurality of samples are collected at the center and around the coordinate of one sampling point and mixed into one soil sample. The advantage of such a collection is that the mixed soil sample can be a representative sample of the sampling coordinate area, with a representative representation. For surface soil (0-20 cm), the method has no collection difficulty. However, this approach is clearly undesirable once deep soil has to be collected.

At present, drilling technology is mostly adopted for collecting deep soil samples. On the one hand the cost of drilling technology is high; on the other hand, the technology is not suitable for collecting volatile and semi-volatile organic polluted soil, and the volatile and semi-volatile organic pollutants are volatilized into the air due to the disturbance of the soil caused by the drilling process, so that the content of the pollutants in the soil is reduced, and the collected soil sample is distorted and cannot represent the in-situ soil. Therefore, it is urgently needed to develop a novel in-situ collection technology for the deep soil polluted by volatile and semi-volatile organic compounds, and therefore, a dispersive deep soil collector with a freezing function is proposed by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a distributed collector of deep soil with freezing function can obtain deep normal position soil sample fast, timely, accurately at first scene, has also avoided organic pollutant's the effect of volatilizing simultaneously.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a deep soil distributed collector with a freezing function comprises a crawler, wherein a vertical drilling support driving unit for driving a drill rod to vertically drill into a soil layer is mounted above the crawler, a horizontal sampling freezing driving unit for performing distributed sampling and freezing the sampled soil to prevent organic pollutants from volatilizing is mounted at the bottom end and the inner part of the drill rod together, and a drill bit for drilling the soil is mounted at the bottom end of the horizontal sampling freezing driving unit;

the horizontal sampling freezing driving unit comprises a first mounting frame and a second mounting frame which are sequentially mounted inside the drill rod from top to bottom, a drilling barrel is fixedly connected between the horizontal sampling freezing driving unit and the drill bit through a flange plate, a liquid nitrogen storage tank is mounted above the first mounting frame, a liquid nitrogen delivery pump is mounted in the middle of the upper portion of the second mounting frame, the input end of the liquid nitrogen delivery pump is connected with the output end of the liquid nitrogen storage tank in series through a liquid nitrogen delivery pipe, a push-down driving hydraulic cylinder with a telescopic end downward is mounted in the middle of the lower portion of the second mounting frame, a transverse sampling unit is mounted at the bottom end of the interior of the drilling barrel, and a liquid nitrogen shunting mechanism is mounted above the second mounting frame and located on the outer side of the liquid nitrogen delivery pump;

the horizontal sampling unit comprises a bearing base fixedly installed at the bottom end inside the drill cylinder, the top end of the bearing base is connected with a plurality of limit columns distributed in a circumferential direction, a plurality of steering transition arc surfaces are arranged on the circumferential side of the bearing base, a push-down linkage plate fixedly connected with the telescopic end of the push-down driving hydraulic cylinder is arranged inside the limit columns, a push-down sliding cavity used for the push-down linkage plate to vertically slide is reserved between every two adjacent limit columns, each limit column and each steering transition arc surface correspond to a group of horizontal extension sampling mechanisms together, and a plurality of horizontal extension holes used for enabling the horizontal extension sampling mechanisms to horizontally extend outwards are formed in the circumferential side of the drill cylinder;

every group horizontal epitaxial sampling mechanism is kept somewhere a section of thick bamboo by a plurality of sampling and forms jointly, and the adjacent terminal surface that a section of thick bamboo was kept somewhere in a plurality of sampling all articulates together, every the lateral wall that a section of thick bamboo was kept somewhere in the sampling all is fixed with the pipe strap, a plurality of the inside of pipe strap alternates jointly and is provided with a liquid nitrogen and carries flexible pipe, per two the sampling is kept somewhere between the section of thick bamboo and all is provided with liquid nitrogen and spouts the mouth with articulated one side of locating mutually the lateral wall that flexible pipe was carried to liquid nitrogen just corresponds every the position that liquid nitrogen spouts the mouth all is connected with the liquid nitrogen shower nozzle, is located the bottommost the tip that a section of thick bamboo was kept somewhere in the sampling articulates there is the soil rotary-cut mechanism that is used for cutting soil.

As a further technical scheme of the utility model, be located the top the lateral wall of a section of thick bamboo is kept somewhere in the sampling with the tip fixed connection of pushing down the linkage board.

As a further technical scheme of the utility model, liquid nitrogen reposition of redundant personnel mechanism is including installing the branch flow box at second mounting bracket top edge, the top of dividing the flow box is sealed through the annular cover plate, set up on the annular cover plate one with the liquid nitrogen pump that liquid nitrogen delivery pump output end concatenated connects, the bottom intercommunication of dividing the flow box has concatenated a plurality of spring pipes, every spring pipe and corresponding position the flexible pipe concatenation is carried to the liquid nitrogen together.

As a further technical scheme of the utility model, soil rotary-cut mechanism include with the bottommost the articulated a section of thick bamboo that links together of a section of thick bamboo is kept somewhere in the sampling the motor mounting groove has been seted up at the top of a section of thick bamboo the internally mounted of motor mounting groove has rotary-cut driving motor, the driving gear is installed to rotary-cut driving motor's drive end.

As a further technical scheme of the utility model, the cutter mounting groove has been seted up to the tip that links up a section of thick bamboo, the inside rotation of cutter mounting groove is connected with the rotary-cut cutter, the rotary-cut cutter orientation the terminal surface of cutter mounting groove is connected with the ring gear collar the external fixation of ring gear collar cup joint with the driven outer ring gear of driving gear engaged with, the rotary-cut cutter with it is linked together to link up a section of thick bamboo.

As a further technical scheme of the utility model, vertical brill supports drive unit including set up in tracked vehicle load-bearing platform on the tracked vehicle the both sides of tracked vehicle load-bearing platform top correspond respectively and install the carrier bar and seted up spacing spout, the inside slip of spacing spout is provided with the slide, upset drive pneumatic cylinder is installed to the lateral wall of carrier bar, upset drive pneumatic cylinder's flexible end with slide fixed connection.

As a further technical scheme of the utility model, bearing frame's articulated being provided with in top decides bearing frame, it is provided with to move bearing frame to decide bearing frame's inside slip, decide bearing frame and move between the bearing frame and carry out spacingly and direction through a plurality of group's direction wheelset that set up, bearing frame's top and be located that bearing frame's both sides are articulated to be provided with two sets of drive cylinder that bores down, and are two sets of the flexible end of drive cylinder that bores down is connected jointly move bearing frame's top, the slide with it articulates jointly to be provided with the support swing arm to decide bearing frame.

As a further technical scheme of the utility model, move the top front side that bears the weight of the frame and install the motor mount pad the internally mounted of motor mount pad has driving motor, driving motor's drive end pass through the shaft coupling with the top fixed connection of drilling rod, the drilling rod is provided with a plurality of sections, a plurality of sections all fix through the flange between the drilling rod.

Advantageous effects

The utility model provides a distributed collector of deep soil with freezing function. Compared with the prior art, the method has the following beneficial effects:

this distributed collector of deep soil with freezing function, through being provided with the drilling rod that vertical drilling into the soil layer downwards respectively, the drill bit and be used for the drive unit of vertical drilling down, still carried on the drilling rod simultaneously and set up the structure that is used for horizontal extension to gather deep soil layer soil sample all around, vertical drilling down has once been realized, gather the soil sample of a plurality of position points on every side simultaneously, need not to utilize large-scale drilling equipment to carry out drilling down many times and obtain the multiple spot soil sample, in addition, when gathering the multiple spot sample all around, still be equipped with liquid nitrogen refrigerating system, can freeze the preservation to the organic pollutant of complete volatility or semi-volatility in the soil, improve the validity that soil sample gathered.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural view of the horizontal sampling freezing driving unit of the present invention;

fig. 3 is a schematic view of an exploded structure of the lateral sampling unit of the present invention;

fig. 4 is a schematic structural view of the horizontal epitaxial sampling mechanism of the present invention;

fig. 5 is a sectional view of the horizontal extension sampling mechanism of the present invention;

FIG. 6 is a schematic structural view of the liquid nitrogen diversion mechanism of the present invention;

fig. 7 is an exploded schematic view of the soil rotary cutting mechanism of the present invention;

fig. 8 is an assembly structure schematic diagram of the soil rotary cutting mechanism of the present invention;

fig. 9 is a sectional view of the soil rotary cutting mechanism of the present invention;

fig. 10 is a schematic structural view of the vertical drilling support driving unit of the present invention;

fig. 11 is a sectional view of the internal structure of the drill rod of the present invention;

figure 12 is a cross-sectional view of the horizontal extension sampling mechanism of figure 11, pushed out of the drill stem in accordance with the present invention;

figure 13 is a perspective view of the horizontal extension sampling mechanism of figure 11 after being pushed out of the drill rod in accordance with the present invention.

In the figure: 1. a tracked vehicle; 2. a vertical drill-down support drive unit; 21. a crawler carrier platform; 22. a limiting chute; 23. a load-bearing beam; 24. a slide base; 25. a turnover driving hydraulic cylinder; 26. fixing a bearing frame; 27. a movable carrying frame; 28. a guide wheel set; 29. a drill-down driving hydraulic cylinder; 210. supporting the swing arm; 211. a motor mounting base; 212. a coupling; 213. a drive motor; 3. drilling a rod; 4. a horizontal sampling freezing driving unit; 41. a first mounting bracket; 42. a second mounting bracket; 43. drilling a barrel; 431. a horizontally extending bore; 44. a liquid nitrogen storage tank; 45. a liquid nitrogen delivery pump; 46. a push-down driving hydraulic cylinder; 47. a transverse sampling unit; 471. a horizontal extension sampling mechanism; 4711. sampling and keeping the tube; 4712. a pipe clamp; 4713. a liquid nitrogen conveying flexible pipe; 4714. a liquid nitrogen injection port; 4715. a liquid nitrogen spray head; 4716. a soil rotary cutting mechanism; 4716-1, a connecting cylinder; 4716-2, motor mounting groove; 4716-3, rotary cutting drive motor; 4716-4, a drive gear; 4716-5, a cutter mounting groove; 4716-6, rotary cutter; 4716-7, a gear ring mounting ring; 4716-8, driven outer gear ring; 472. a limiting column; 473. a steering transition arc surface; 474. pushing down the sliding cavity; 475. pushing down the linkage plate; 476. a load-bearing base; 48. a liquid nitrogen delivery pipe; 49. a liquid nitrogen shunting mechanism; 491. a shunt box; 492. an annular cover plate; 493. a liquid nitrogen pump joint; 494. a spring tube; 5. a drill bit.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Referring to fig. 1, the present invention provides a technical solution: the utility model provides a distributed collector of deep soil with freezing function, including tracked vehicle 1, install in tracked vehicle 1's top and be used for driving 3 vertical underdrillings that bore into to the soil layer of drilling rod to support drive unit 2, drilling rod 3 is provided with a plurality of sections, all fix through the flange between a plurality of sections drilling rod 3, install jointly in the bottom of drilling rod 3 and inside and be used for distributed sample and freeze the horizontal sampling refrigeration drive unit 4 that prevents organic pollutant volatilization to the soil of taking a sample, drill bit 5 that is used for boring soil is installed to the bottom of horizontal sampling refrigeration drive unit 4.

Referring to fig. 2, the horizontal sampling freezing driving unit 4 includes a first mounting frame 41 and a second mounting frame 42 sequentially installed inside the drill rod 3 from top to bottom, a drill cylinder 43 is fixedly connected between the horizontal sampling freezing driving unit 4 and the drill bit 5 through a flange, a liquid nitrogen storage tank 44 is installed above the first mounting frame 41, a liquid nitrogen delivery pump 45 is installed in the middle of the upper portion of the second mounting frame 42, the input end of the liquid nitrogen delivery pump 45 is connected in series with the output end of the liquid nitrogen storage tank 44 through a liquid nitrogen delivery pipe 48, a downward push-down driving hydraulic cylinder 46 with a telescopic end is installed in the middle of the lower portion of the second mounting frame 42, a horizontal sampling unit 47 is installed at the bottom end of the inner portion of the drill cylinder 43, and a liquid nitrogen shunting mechanism 49 is installed above the second mounting frame 42 and outside the liquid nitrogen delivery pump 45.

Referring to fig. 3, the horizontal sampling unit 47 includes a bearing base 476 fixedly installed at the bottom end inside the drill cylinder 43, the top end of the bearing base 476 is connected with a plurality of circumferentially distributed limiting columns 472, a plurality of turning transition arc surfaces 473 are arranged on the circumferential side of the bearing base 476, a push-down linkage plate 475 fixedly connected with the telescopic end of the push-down driving hydraulic cylinder 46 is arranged inside the plurality of limiting columns 472, a push-down sliding chamber 474 for the push-down linkage plate 475 to vertically slide is reserved between two adjacent limiting columns 472, each limiting column 472 and the turning transition arc surface 473 correspond to a group of horizontal extension sampling mechanisms 471, and a plurality of horizontal extension holes 431 for the horizontal extension sampling mechanisms 471 to horizontally extend outward are arranged on the circumferential side of the drill cylinder 43.

Referring to fig. 4-5, each group of horizontal extension sampling mechanisms 471 is formed by a plurality of sampling retention tubes 4711, adjacent end faces of the plurality of sampling retention tubes 4711 are hinged together, a tube clamp 4712 is fixed on a side wall of each sampling retention tube 4711, a liquid nitrogen delivery flexible tube 4713 is inserted into the plurality of tube clamps 4712, a liquid nitrogen injection port 4714 is arranged on one side between every two sampling retention tubes 4711 opposite to the hinged joint, a liquid nitrogen spray nozzle 4715 is connected to a position on the side wall of the liquid nitrogen delivery flexible tube 4713 corresponding to each liquid nitrogen injection port 4714, the side wall of the topmost sampling retention tube 4711 is fixedly connected to an end of a push-down linkage plate 475, and a soil rotary cutting mechanism 4716 for cutting soil is hinged to an end of the bottommost sampling retention tube 4711.

Referring to fig. 6, the liquid nitrogen shunting mechanism 49 includes a shunting box 491 installed at the upper edge of the second mounting frame 42, the top end of the shunting box 491 is sealed by an annular cover plate 492, a liquid nitrogen pump joint 493 connected in series with the output end of the liquid nitrogen delivery pump 45 is arranged on the annular cover plate 492, the bottom end of the shunting box 491 is connected in series with a plurality of spring tubes 494, each spring tube 494 is connected in series with a corresponding liquid nitrogen delivery flexible tube 4713, the arrangement of the spring tubes 494 is to facilitate the external delay, distance increase and feasibility of liquid nitrogen delivery of each group of horizontal extension sampling mechanisms 471, and the liquid nitrogen delivery flexible tube 4713 is to facilitate the liquid nitrogen delivery of the whole horizontal extension sampling mechanisms 471 when the horizontal extension sampling mechanisms 471 are changed from vertical to horizontal.

Referring to fig. 7-9, the soil rotary cutting mechanism 4716 includes a connecting cylinder 4716-1 hinged with the bottommost sampling retention cylinder 4711, a motor mounting groove 4716-2 is formed at the top of the connecting cylinder 4716-1, a rotary cutting driving motor 4716-3 is mounted inside the motor mounting groove 4716-2, a driving gear 4716-4 is mounted at the driving end of the rotary cutting driving motor 4716-3, a cutter mounting groove 4716-5 is formed at the end of the connecting cylinder 4716-1, a rotary cutting cutter 4716-6 is rotatably connected inside the cutter mounting groove 4716-5, a ring gear mounting ring 4716-7 is connected to the end surface of the rotary cutting cutter 4716-6 facing the cutter mounting groove 4716-5, a driven outer ring gear 4716-8 meshed with the driving gear 4716-4 is fixedly sleeved outside the ring gear mounting ring 4716-7, the rotary cutting cutter 4716-6 is communicated with the connecting cylinder 4716-1, the motor mounting groove 4716-2 is provided with a wear-resistant sealing structure corresponding to the meshing part of the driving gear 4716-4 and the driven outer ring 4716-8, and a wear-resistant sealing structure is provided to prevent the wear-resistant material from being lost during the sampling process.

Referring to fig. 10, the vertical drilling support driving unit 2 includes a crawler carrier 21 disposed on the crawler 1, a carrier beam 23 and a limit sliding groove 22 are respectively and correspondingly mounted on two sides above the crawler carrier 21, a sliding seat 24 is slidably disposed inside the limit sliding groove 22, a turning drive hydraulic cylinder 25 is mounted on a side wall of the carrier beam 23, a telescopic end of the turning drive hydraulic cylinder 25 is fixedly connected to the sliding seat 24, a fixed carrier frame 26 is hinged above the carrier beam 23, a movable carrier frame 27 is slidably disposed inside the fixed carrier frame 26, the fixed carrier frame 26 and the movable carrier frame 27 are limited and guided by a plurality of guide wheel sets 28, two sets of drilling drive hydraulic cylinders 29 are hinged above the carrier beam 23 and located on two sides of the fixed carrier frame 26, telescopic ends of the two sets of drilling drive hydraulic cylinders 29 are commonly connected to a top of the movable carrier frame 27, a support swing arm 210 is hinged between the sliding seat 24 and the fixed carrier frame 26, a motor mounting seat 211 is mounted on a front side of a top of the movable carrier frame 27, a drive motor 213 is mounted inside the motor mounting seat 211, a drive motor 213 is connected to a top end of a drill rod 3 through a fixed coupling 212, and a drill rod 3 is driven by a drill rod driving motor.

In addition, in the embodiment, it should be noted that, because it is considered that the whole device needs electric power support when extending horizontally outward and it is inconvenient to connect an external wire for supplying power during drilling, a power supply (not shown in the figure) is further provided inside the drill rod 3, and the power supply mainly provides electric power requirements for the liquid nitrogen delivery pump 45, the downward pushing driving hydraulic cylinder 46 and the rotary cutting driving motor 4716-3, and how to control the states of the liquid nitrogen delivery pump 45, the downward pushing driving hydraulic cylinder 46 and the rotary cutting driving motor 4716-3 is well known technology, and will not be described in detail herein.

When the device is used, firstly, the driving motor 213 is started, the drill rod 3, the horizontal sampling freezing driving unit 4 and the drill bit 5 are driven to integrally rotate through the coupler 212, and the down-drilling driving hydraulic cylinder 29 is controlled to be shortened while the drill rod is rotated, so that the drill rod 3 is matched with the drill bit 5 to drill into a soil layer;

after the drilling is finished to a certain depth, the driving motor 213 is closed, the drilling is stopped, then, the pushing down driving hydraulic cylinder 46, the rotary cutting driving motor 4716-3 and the liquid nitrogen delivery pump 45 are enabled to work normally, the pushing down driving hydraulic cylinder 46 pushes the pushing down linkage plate 475 to move downwards in the pushing down sliding cavity 474, as the pushing down linkage plate 475 is fixedly connected with the topmost sampling indwelling barrel 4711, all the topmost sampling indwelling barrels 4711 are pushed to synchronously move downwards, and each sampling indwelling barrel 4711 is hinged and matched with the steering transition cambered surface 473, so that each sampling indwelling barrel 4711 which is originally in a vertical state is in a horizontal state when coming out of the horizontal extension hole 431 after passing through the steering transition cambered surface 473;

in the integral moving process of the sampling indwelling barrel 4711, the rotary cutting driving motor 4716-3 drives the driven outer gear ring 4716-8 to rotate through the driving gear 4716-4, and further drives the rotary cutting tool 4716-6 to rotate at a high speed to cut the soil layer, so that the purposes of cutting and pushing to collect soil are realized;

in the process of collecting soil samples in a horizontal and peripheral scattered manner, a liquid nitrogen delivery pump 45 pumps out liquid nitrogen in a liquid nitrogen storage tank 44 through a liquid nitrogen delivery pipe 48, and delivers the liquid nitrogen to a flow distribution box 491 through a liquid nitrogen pump joint 493, the flow distribution box 491 then delivers the liquid nitrogen to each spring tube 494, each spring tube 494 delivers the liquid nitrogen to a corresponding liquid nitrogen delivery flexible tube 4713, and finally sprays the liquid nitrogen to the soil samples in a sampling retention tube 4711 through a liquid nitrogen spray nozzle 4715 and a liquid nitrogen spray inlet 4714 to freeze the soil samples, so that the volatilization of completely volatile or semi-volatile organic pollutants in the soil is prevented, and the effectiveness of sampling is ensured;

after each group of horizontal extension sampling mechanisms 471 collects soil, the hydraulic cylinder 46 is pushed down to contract, the operation is carried out in the same way, the soil collected in each sampling and remaining cylinder 4711 is brought back, after the horizontal extension sampling mechanisms 471 recover the initial position, the drill driving hydraulic cylinder 29 is extended downwards, the drill rod 3 is pulled out of the soil layer, after the drill rod is pulled out, a worker removes the flanges of the drill cylinder 43 and the drill bit 5, and the soil collected in the sampling and remaining cylinder 4711 is taken out;

after the soil sampling work is completed, the whole equipment needs to be folded, firstly, the overturning driving hydraulic cylinder 25 is controlled to extend to push the sliding seat 24 to move towards the tail part of the crawler 1 in the limiting sliding groove 22, in the moving process, the supporting swing arm 210 rotates anticlockwise to generate pulling force for the fixed bearing frame 26 to enable the fixed bearing frame 26 to rotate clockwise until the fixed bearing frame arrives at the position, after the fixed bearing frame arrives at the position, the drilling driving hydraulic cylinder 29 is controlled to shorten, and under the action of the guide wheel set 28, the movable bearing frame 27 moves into the fixed bearing frame 26.

Claims

1. A deep soil distributed collector with a freezing function comprises a crawler (1), and is characterized in that a vertical underdrilling support driving unit (2) for driving a drill rod (3) to vertically drill into a soil layer is installed above the crawler (1), a horizontal sampling freezing driving unit (4) for distributed sampling and freezing the sampled soil to prevent organic pollutants from volatilizing is installed at the bottom end and the inner part of the drill rod (3), and a drill bit (5) for drilling the soil is installed at the bottom end of the horizontal sampling freezing driving unit (4);

the horizontal sampling freezing driving unit (4) comprises a first mounting frame (41) and a second mounting frame (42) which are sequentially mounted inside the drill rod (3) from top to bottom, a drilling barrel (43) is fixedly connected between the horizontal sampling freezing driving unit (4) and a drill bit (5) through a flange plate, a liquid nitrogen storage tank (44) is mounted above the first mounting frame (41), a liquid nitrogen delivery pump (45) is mounted in the middle of the upper portion of the second mounting frame (42), the input end of the liquid nitrogen delivery pump (45) is connected with the output end of the liquid nitrogen storage tank (44) in series through a liquid nitrogen delivery pipe (48), a downward push-down driving hydraulic cylinder (46) with a telescopic end is mounted in the middle of the lower portion of the second mounting frame (42), a transverse sampling unit (47) is mounted at the bottom end of the inner portion of the drilling barrel (43), and a liquid nitrogen distribution mechanism (49) is mounted above the second mounting frame (42) and located outside the liquid nitrogen delivery pump (45);

the horizontal sampling unit (47) comprises a bearing base (476) fixedly installed at the bottom end inside the drill barrel (43), the top end of the bearing base (476) is connected with a plurality of circumferentially distributed limiting columns (472), a plurality of turning transition arc surfaces (473) are arranged on the circumferential side of the bearing base (476), a push-down linkage plate (475) fixedly connected with the telescopic end of the push-down driving hydraulic cylinder (46) is jointly arranged inside the limiting columns (472), a push-down sliding cavity (474) used for the push-down linkage plate (475) to vertically slide is reserved between every two adjacent limiting columns (472), each limiting column (472) and each turning transition arc surface (473) jointly correspond to one group of horizontal extension sampling mechanisms (471), and a plurality of horizontal extension holes (431) used for the horizontal extension sampling mechanisms (471) to horizontally extend outwards are formed in the circumferential side of the drill barrel (43);

every group level epitaxial sampling mechanism (471) all is kept somewhere a section of thick bamboo (4711) by a plurality of sampling and forms jointly, and the adjacent terminal surface that a section of thick bamboo (4711) was kept somewhere in a plurality of sampling all articulates together, every the lateral wall that a section of thick bamboo (4711) was kept somewhere in the sampling all is fixed with pipe strap (4712), a plurality of the inside of pipe strap (4712) alternates jointly and is provided with a liquid nitrogen and carries flexible pipe (4713), per two the sampling is kept somewhere between a section of thick bamboo (4711) and all is provided with liquid nitrogen with articulated one side that stands opposite and spouts entry (4714) the lateral wall that flexible pipe (4713) was carried to liquid nitrogen and corresponds every the position of liquid nitrogen spout entry (4714) all is connected with liquid nitrogen shower nozzle (4715), is located the bottommost the sampling is kept somewhere the tip of a section of thick bamboo (4711) articulates there is soil rotary-cut mechanism (4716) that is used for cutting soil.

2. The deep soil dispersion collector with freezing function as claimed in claim 1, wherein the side wall of the sampling retention barrel (4711) at the top is fixedly connected with the end of the push-down linkage plate (475).

3. The deep soil decentralized collector with freezing function as claimed in claim 2, wherein said liquid nitrogen diversion mechanism (49) includes a diversion box (491) installed at the upper edge of said second mounting frame (42), the top end of said diversion box (491) is sealed by an annular cover plate (492), said annular cover plate (492) is provided with a liquid nitrogen pump connector (493) connected in series with the output end of said liquid nitrogen delivery pump (45), the bottom end of said diversion box (491) is connected in series with a plurality of spring tubes (494), each spring tube (494) is connected in series with the corresponding position of said liquid nitrogen delivery flexible tube (4713).

4. The deep soil dispersive collector with the freezing function according to claim 1, wherein the rotary cutting mechanism (4716) of the soil comprises a connecting cylinder (4716-1) hinged with the bottommost sampling retention cylinder (4711), a motor mounting groove (4716-2) is opened at the top of the connecting cylinder (4716-1), a rotary cutting driving motor (4716-3) is installed inside the motor mounting groove (4716-2), and a driving gear (4716-4) is installed at the driving end of the rotary cutting driving motor (4716-3).

5. The deep soil decentralized collector with freezing function according to claim 4, characterized in that a cutter mounting groove (4716-5) is opened at an end of the connecting cylinder (4716-1), a rotary cutter (4716-6) is rotatably connected inside the cutter mounting groove (4716-5), a gear ring mounting ring (4716-7) is connected to an end surface of the rotary cutter (4716-6) facing the cutter mounting groove (4716-5), a driven outer gear ring (4716-8) engaged with the driving gear (4716-4) is fixedly sleeved outside the gear ring mounting ring (4716-7), and the rotary cutter (4716-6) is communicated with the connecting cylinder (4716-1).

6. The deep soil decentralized collector with freezing function as claimed in claim 1, wherein the vertical drilling support driving unit (2) comprises a tracked vehicle bearing platform (21) arranged on the tracked vehicle (1), a bearing beam (23) and a limiting sliding groove (22) are respectively and correspondingly installed on two sides above the tracked vehicle bearing platform (21), a sliding seat (24) is slidably arranged inside the limiting sliding groove (22), a turning driving hydraulic cylinder (25) is installed on a side wall of the bearing beam (23), and a telescopic end of the turning driving hydraulic cylinder (25) is fixedly connected with the sliding seat (24).

7. The deep soil dispersive collector with freezing function according to claim 6, wherein a fixed bearing frame (26) is hinged above the bearing beam (23), a movable bearing frame (27) is slidably arranged inside the fixed bearing frame (26), the fixed bearing frame (26) and the movable bearing frame (27) are limited and guided by a plurality of guide wheel sets (28), two sets of drilling driving hydraulic cylinders (29) are hinged above the bearing beam (23) and on two sides of the fixed bearing frame (26), the telescopic ends of the drilling driving hydraulic cylinders (29) are connected to the top of the movable bearing frame (27), and the sliding base (24) and the fixed bearing frame (26) are hinged to form a supporting swing arm (210).

8. The deep soil dispersion type collector with the freezing function as claimed in claim 7, wherein a motor mounting seat (211) is installed at the front side of the top of the movable bearing frame (27), a driving motor (213) is installed inside the motor mounting seat (211), the driving end of the driving motor (213) is fixedly connected with the top end of the drill rod (3) through a coupling (212), the drill rod (3) is provided with a plurality of sections, and the drill rods (3) are all fixed through flanges.