Soil core sample sampler for geological exploration

Abstract

The invention provides a soil core sample sampler for geological exploration, and relates to the technical field of geological exploration sampling, the soil core sample sampler comprises a pressure applying support part, a sampling barrel mechanism and a main frame body. The sampling barrel mechanism is mounted on the pressure applying bracket through a clamping seat part, and a hollow sealing body and a temperature adjusting assembly are arranged in the sampling barrel mechanism. During sampling, the pressure applying support is pressed downwards and drives the sampling barrel to rotate and be inserted into soil, the temperature adjusting assembly enables water in the hollow sealing body to be solidified and expanded and extrudes the soil core to form a fixed arc groove, meanwhile, water stains on the outer wall of the soil core are frozen at low temperature, adhesive force is enhanced, and the soil core is effectively prevented from falling off in the sampling process. After sampling is completed, the temperature adjusting assembly enables ice to be liquefied, the hollow sealing body shrinks, and the push-out assembly rapidly pushes out the soil core. The problems that a soil core of a traditional sampler is prone to falling off and discharging is difficult are solved, and the sampling success rate and the detection efficiency are remarkably improved.

Description

Technical Field

[0001] The present invention relates to the technical field of geological exploration sampling, and in particular to a soil core sample sampler for geological exploration. Background Art

[0002] Geological exploration is an investigation activity that uses various means and methods to explore and detect the geology, determine a suitable bearing layer, determine the foundation type according to the foundation bearing capacity of the bearing layer, and calculate the foundation parameters. Generally, pits, trenches, wells, and holes are excavated manually or mechanically to directly observe the natural state of the rock and soil layers and the geological structure of each stratum, and to be able to take undisturbed soil samples close to the actual situation.

[0003] During geological exploration, the collection of soil core samples is an important means to analyze the soil structure, composition, and geological characteristics. Traditional soil core samplers usually insert the sampling cylinder into the soil by means of mechanical pressing or rotary drilling, and then pull out the sampling cylinder together with the soil core sample by external force. However, the existing technologies have the following problems:

[0004] The soil core sample is prone to falling off: When the sampling cylinder is pulled out of the soil, due to insufficient soil adhesion or small friction on the inner wall of the sampling cylinder, the soil core sample is likely to fall off from the sampling cylinder, resulting in sampling failure or damage to the sample integrity.

[0005] The discharging efficiency is low: After sampling, the soil core sample may be difficult to be quickly pushed out due to strong adhesion, affecting the subsequent detection efficiency. Summary of the Invention

[0006] The purpose of the present invention is to provide a soil core sample sampler for geological exploration to solve the technical problems existing in the background art.

[0007] To achieve the above purpose, the present invention provides the following technical solutions:

[0008] A geological exploration soil core sample sampler, comprising a pressure application support component, a sampling cylinder mechanism, and a main frame body. The pressure application support component is slidably arranged on the main frame body, and the sampling cylinder mechanism is detachably installed in the middle position of the pressure application support component through a clamping seat component. The pressure application support component can apply an upward or downward force to the sampling cylinder mechanism so that the sampling cylinder mechanism is inserted into the soil for sampling. The sampling cylinder mechanism includes a sampling cylinder body, an upper circular frame, a temperature adjustment component, a rotation driving component, and a pushing component. The upper circular frame is connected to the clamping seat component. The top of the sampling cylinder body is inserted into the upper circular frame and is rotationally matched with it. The rotation driving component is arranged on the upper circular frame and is connected to the top of the sampling cylinder body. A plurality of circumferentially distributed sharp teeth are arranged on the bottom wall of the sampling cylinder body. The sampling cylinder body has an inner liner, and there is an inner cavity between the inner liner and the outer wall. A plurality of groups of mounting openings are formed in the inner liner, and a hollow seal body is arranged in each mounting opening. Water is stored inside the hollow seal body, and the side wall of the hollow seal body facing the inside of the sampling cylinder body has expansibility and contractibility. The temperature adjustment component is arranged on the top of the upper circular frame, and a plurality of hollow seal bodies are all connected to the temperature adjustment component. The temperature adjustment component is used to adjust the temperature inside the hollow seal body so that the water solidifies and liquefies. One end of the pushing component extends into the sampling cylinder body, and the upper end of the pushing component extends to the top of the sampling cylinder body. The pushing component is used to push out the soil core sample in the sampling cylinder body.

[0009] On the basis of the above technical solution, the present invention also provides the following optional technical solutions:

[0010] In an optional solution: the temperature adjustment component includes a temperature adjustment air conditioner, two liquid guide pipes, and a plurality of heat exchange annular pipes. A plurality of heat exchange annular pipes are arranged inside the inner cavity and surround the outer wall of the inner liner of the sampling cylinder body. The heat exchange annular pipes are connected to the hollow seal bodies. The two liquid guide pipes are located inside the inner cavity, and the liquid guide pipes are connected to all the heat exchange annular pipes. The top of the liquid guide pipe is connected to the temperature adjustment air conditioner. The temperature adjustment air conditioner is arranged on the sampling cylinder body and is used to adjust the temperature of the heat exchange medium circulating in the heat exchange annular pipes and the liquid guide pipes.

[0011] In an optional solution: a plurality of groups of hollow seal bodies are axially distributed on the wall of the inner liner of the sampling cylinder body, and each group of hollow seal bodies is multiple and circumferentially distributed.

[0012] In an optional solution: the rotation driving component includes a rotation motor and a rotation main shaft. The rotation motor is installed on the upper circular frame. One end of the rotation main shaft is rotatably connected to the upper circular frame, and the other end is fixedly connected to the center of the top of the sampling cylinder body. Gear pairs are arranged on the output end of the rotation motor and the rotation main shaft, and the two gear pairs are meshed with each other.

[0013] In an alternative solution: the rotating main shaft is of a hollow structure, the pushing-out assembly includes a push plate part, a push rod member and a wire winding wheel. The push plate part is arranged inside the sampling cylinder body, and the edge of the push plate part is axially slidably engaged with the inner wall of the sampling cylinder body. The push rod member can slide through the rotating main shaft. The bottom end of the push rod member is fixedly connected to the push plate part, and a rotating head is arranged at the top of the push rod member and is rotationally engaged therewith. The wire winding wheel is rotatably arranged on the upper circular frame, and the main shaft of the upper circular frame is connected to the output end of the wire winding motor. The wire winding wheel winds a pulling wire, and one end of the pulling wire is connected to the rotating head.

[0014] In an alternative solution: the pressing support member includes a top beam part and two support members respectively arranged on both sides of the top beam part. The top beam part is connected to the top of the clamping seat member. The support member includes a movable support frame and two roller parts. The top of the movable support frame is rotatably connected to the side of the top beam part. The two roller parts are respectively arranged at both ends of the bottom of the movable support frame. At least one double-headed cylinder member is further arranged between the two movable support frames, and both ends of the double-headed cylinder member are hinged to the side parts of the two movable support frames respectively.

[0015] In an alternative solution: a base part is further arranged on the lower side of the pressing support member. The base part has two sliding grooves and a fastening seat on the side wall of the base part. The roller part is installed in the sliding groove and can roll therein.

[0016] In an alternative solution: an installation ring is arranged at the bottom of the upper circular frame, and the installation ring is rotatably connected to the outer wall of the sampling cylinder body. The clamping seat member includes two semi-circular clamping ring assemblies. The two semi-circular clamping ring assemblies can be combined into a hoop part that clamps outside the installation ring. A fixed support arm is fixedly connected to the side of each semi-circular clamping ring assembly. One of the fixed support arms is fixedly connected to the top beam part, and an upper movable seat is arranged at the top of the other fixed support arm. The upper movable seat is slidably engaged with a guiding hole opened on the top beam part. The upper movable seat and the side wall of the guiding hole are connected by an upper return spring.

[0017] In an alternative solution: the semi-circular clamping ring assembly includes a semi-circular clamping ring, a semi-circular supporting strip plate and an outer semi-circular connecting ring. The bottom of the semi-circular clamping ring is fixedly connected to the fixed support arm. The semi-circular supporting strip plate is arranged on the inner side wall of the semi-circular clamping ring and is used for supporting the installation ring. A semi-circular sliding groove is arranged on the outer wall of the semi-circular clamping ring. The outer semi-circular connecting ring is rotatably slidably arranged in the semi-circular sliding groove. A plurality of pressing pieces are arranged at the upper end of the semi-circular clamping ring, and the pressing pieces can press on the installation ring located on the semi-circular supporting strip plate.

[0018] In an alternative embodiment: The briquetting member includes a restricting portion and a follower strip frame. The restricting portion is located on the semi-circular snap ring, and one end of the restricting portion is rotatably connected to the upper end portion of the semi-circular snap ring through a support portion. One end of the follower strip frame is fixedly connected to the restricting portion, and the other end of the follower strip frame extends to the upper side of the outer semi-circular connecting ring. A plurality of driving posts are provided on the outer semi-circular connecting ring, and the driving posts are correspondingly inserted into the interior of the follower strip frame.

[0019] Adopting the above technical solution, the present invention has the following beneficial effects:

[0020] In the geological exploration soil core sample sampler provided by the present invention, the water in the hollow seal is controlled by the temperature regulating component to solidify or liquefy. By utilizing the expansion characteristic of ice, the hollow seal protrudes and embeds into the side wall of the soil core sample, significantly increasing the friction force and preventing the soil core sample from falling off during the sampling process. The water stains on the outer wall of the soil core sample are condensed and solidified into ice, further adhering to the inner wall of the sampling cylinder inner liner. The dual fixing mechanism ensures the integrity of the sample; after sampling, the temperature regulating component melts the ice into water, and the hollow seal shrinks and resets, reducing the resistance to the soil core. The pushing component can efficiently push out the sample, improving the detection efficiency; it is applicable to soil conditions with different humidity and hardness, especially having a better sampling effect on loose or high water content soils. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0022] Figure 1 It is a schematic diagram of the overall structure of the sampler in an embodiment of the present invention.

[0023] Figure 2 It is a schematic diagram of the structure of the sampling cylinder mechanism in an embodiment of the present invention.

[0024] Figure 3 It is a schematic diagram of the internal structure of the sampling cylinder mechanism in an embodiment of the present invention.

[0025] Figure 4 For Figure 3 The enlarged structure schematic diagram at A in

[0026] Figure 5 It is a schematic diagram of the structure of the temperature regulating component in an embodiment of the present invention.

[0027] Figure 6 For Figure 3 The enlarged structure schematic diagram at B in

[0028] Figure 7 Schematic structural diagram of the pressure application support component in an embodiment of the present invention.

[0029] Figure 8 Schematic structural diagram of the upper circular frame in an embodiment of the present invention.

[0030] Figure 9 Schematic structural diagram of the connection structure between the upper circular frame and the card seat component in an embodiment of the present invention.

[0031] Figure 10 Schematic structural diagram of the card seat component in an embodiment of the present invention.

[0032] Annotation of reference numerals in the drawings: pressure application support component 100, top beam part 110, roller part 120, movable support frame 130, double-headed cylinder part 140, guide hole 150, sampling cylinder mechanism 200, sampling cylinder body 210, inner cavity body 211, installation port 212, hollow seal body 213, pointed teeth 214, guide hole 215, upper circular frame 220, installation ring 221, temperature control component 230, temperature control air conditioner 231, liquid guide pipe 232, heat exchange annular pipe 233, rotation drive part 240, rotation motor 241, rotation main shaft 242, gear pair 243, push-out component 250, push plate part 251, push rod part 252, rotating head 253, winding wheel 254, winding motor 255, pulling wire 256, base part 300, main frame body 400, card seat component 500, semi-circular snap ring component 510, semi-circular snap ring 511, semi-circular supporting strip plate 512, outer semi-circular connecting ring 513, limiting part 514, support part 515, follower strip frame 516, active column 517, fixed support arm 520, upper movable seat 530, upper return spring 540. Detailed implementation manners

[0033] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0034] The left, right, up, and down positions of the various components shown in the drawings are only one arrangement method, and the specific positions are set according to specific needs.

[0035] In one embodiment, as Figures 1 - 3As shown in the figure, a geological exploration soil core sample sampler includes a pressure application support member 100, a sampling cylinder mechanism 200, and a main frame body 400. The pressure application support member 100 is slidably disposed on the main frame body 400, and the sampling cylinder mechanism 200 is detachably installed at the middle position of the pressure application support member 100 through a clamping seat member 500. The pressure application support member 100 can apply an upward or downward force to the sampling cylinder mechanism 200 so that the sampling cylinder mechanism 200 is inserted into the soil for sampling. The sampling cylinder mechanism 200 includes a sampling cylinder body 210, an upper circular frame 220, a temperature adjustment component 230, a rotation driving member 240, and a pushing component 250. The upper circular frame 220 is connected to the clamping seat member 500. The top of the sampling cylinder body 210 is inserted into the upper circular frame 220 and is rotatably matched with it. The rotation driving member 240 is disposed on the upper circular frame 220 and is connected to the top of the sampling cylinder body 210. A plurality of circumferentially distributed sharp teeth 214 are provided on the bottom wall of the sampling cylinder body 210. The sampling cylinder body 210 has an inner liner, and there is an inner cavity 211 between the inner liner and the outer wall. A plurality of groups of mounting openings 212 are formed in the inner liner, and a hollow seal 213 is provided in each mounting opening 212. Water is stored inside the hollow seal 213, and the side wall of the hollow seal 213 facing the inside of the sampling cylinder body 210 has expansibility and contractibility. The temperature adjustment component 230 is disposed on the top of the upper circular frame 220, and a plurality of hollow seals 213 are all connected to the temperature adjustment component 230. The temperature adjustment component 230 is used to adjust the temperature inside the hollow seal 213 so that the water solidifies and liquefies. One end of the pushing component 250 extends into the sampling cylinder body 210, and the upper end of the pushing component 250 extends to the top of the sampling cylinder body 210. The pushing component 250 is used to push out the soil core sample in the sampling cylinder body 210.

[0036] In an embodiment of the present invention, during the sampling process, the pressing support member 100 applies a downward pressure to the top of the sampling cylinder mechanism 200 through the clamping seat member 500. At the same time, the rotation driving member 240 operates and drives the sampling cylinder body 210 to rotate. The pointed teeth 214 at the bottom of the sampling cylinder body 210 act on the soil, and under the downward pressing force of the pressing support member 100, the sampling cylinder body 210 gradually inserts into the soil, and the soil core sample is gradually placed inside the sampling cylinder body 210. The end of the pushing assembly 250 extending into the sampling cylinder body 210 moves towards the top of the sampling cylinder body 210 under the pushing of the soil core sample until the soil core sample fills the inside of the sampling cylinder body 210. The staff controls the temperature regulating assembly 230 to operate. The temperature regulating assembly 230 causes the water in the plurality of hollow seals 213 to gradually solidify and form ice blocks through heat exchange. The solidification of water into ice blocks causes the hollow seals 213 to expand. The side walls of the hollow seals 213 protruding towards the inside of the sampling cylinder body 210 press against the side walls of the soil core sample, and a relatively shallow arc groove is formed on the side wall of the soil core sample. The portion of the hollow seal 213 placed inside the sampling cylinder body 210 is caught in the arc groove, effectively increasing the friction with the soil core sample and preventing the soil core sample from moving relative to the sampling cylinder body 210. At the same time, the temperature inside the hollow seal 213 decreases and is conducted to the soil core sample through the side wall of the hollow seal 213. The soil core sample is cooled and the water stains inside it gradually solidify. The water stains near the outer wall of the soil core sample solidify into ice blocks and adhere to the inner wall of the sampling cylinder body 210. Further increasing the adhesion between the soil core sample and the inner wall of the sampling cylinder body 210. The pressing support member 100 applies an upward pulling force to the sampling cylinder mechanism 200, and the sampling cylinder mechanism 200 moves upward. Since the side wall of the hollow seal 213 is caught in the arc groove of the soil core sample, it plays a role in preventing the soil core sample from detaching from the inside of the sampling cylinder body 210, and the water stains on the outer wall of the soil core sample solidify into ice stains and adhere to the inner wall of the sampling cylinder body 210, further increasing the resistance for the soil core sample to detach from the inside of the sampling cylinder body 210. Thus, when the sampling cylinder mechanism 200 is pulled out of the soil, the phenomenon of the soil core sample falling off is effectively avoided, and the integrity of the soil core sample is ensured. When the sampling cylinder mechanism 200 is removed from the soil, the temperature regulating assembly 230 liquefies the ice blocks in the hollow seals 213 again through heat exchange and the volume decreases. The hollow seals 213 contract and completely retract into the installation opening 212, and the hollow seals 213 no longer block the movement of the soil core sample inside the sampling cylinder body 210. At the same time, the temperature of the hollow seals 213 rises and liquefies the ice stains in the soil core sample, and reduces the adhesion between the soil core sample and the inner wall of the sampling cylinder body 210. The pushing assembly 250 operates and the end of the pushing assembly 250 extending into the sampling cylinder body 210 moves towards the port of the sampling cylinder body 210. The pushing assembly 250 can quickly push the soil core sample out of the inside of the sampling cylinder body 210, realizing rapid discharging, so as to facilitate subsequent detection of the soil core sample. Among them, the hollow seal 213 is made of titanium alloy material.

[0037] In one embodiment, asFigures 1 - 5 As shown in the figure, the temperature control component 230 includes a temperature control air conditioner 231, two liquid guide pipes 232, and a plurality of heat exchange annular pipes 233; the plurality of heat exchange annular pipes 233 are arranged inside the inner cavity 211 and surround the outer wall of the inner liner of the sampling cylinder 210. The heat exchange annular pipes 233 are connected to the hollow seal 213. The two liquid guide pipes 232 are located inside the inner cavity 211, and the liquid guide pipes 232 are connected to the plurality of heat exchange annular pipes 233. The top of the liquid guide pipe 232 is connected to the temperature control air conditioner 231; the temperature control air conditioner 231 is arranged on the sampling cylinder 210 and is used to adjust the temperature of the heat exchange medium circulating in the heat exchange annular pipes 233 and the liquid guide pipes 232; in the embodiment of the present invention, the heat exchange medium circulates in the temperature control air conditioner 231, the two liquid guide pipes 232, and the plurality of heat exchange annular pipes 233. The temperature control air conditioner 231 adjusts the heat exchange medium as needed. The heat exchange medium exchanges heat with the water or ice cubes inside the hollow seal 213 through the heat exchange annular pipes 233, so that the water can be solidified into ice to cause the hollow seal 213 to expand, preventing the soil core sample from detaching from the sampling cylinder 210; the ice cubes are liquefied into water to cause the hollow seal 213 to contract, and the hollow seal 213 no longer blocks the soil core sample, facilitating the soil core sample to be pushed out of the sampling cylinder 210.

[0038] In one embodiment, as Figures 1 - 5 shown, multiple groups of hollow seals 213 are axially distributed on the inner wall of the inner liner of the sampling cylinder 210, and each group of hollow seals 213 is multiple and circumferentially distributed; in the embodiment of the present invention, each group of hollow seals 213 is connected to one of the heat exchange annular pipes 233, which can ensure that the water in each group of hollow seals 213 solidifies synchronously, blocking the soil core sample at the same level and reducing the relative movement of the soil core sample with respect to the sampling cylinder 210 due to the pulling of the underlying soil.

[0039] In one embodiment, as Figures 2 - 6 shown, the rotary driving member 240 includes a rotary motor 241 and a rotary main shaft 242. The rotary motor 241 is installed on the upper circular frame 220. One end of the rotary main shaft 242 is rotatably connected to the upper circular frame 220, and the other end is fixedly connected to the center of the top of the sampling cylinder 210. Gear pairs 243 are provided on both the output end of the rotary motor 241 and the rotary main shaft 242, and the two gear pairs 243 are engaged with each other; in the embodiment of the present invention, the rotary motor 241 operates and drives the rotary main shaft 242 to rotate through the engagement of the two gear pairs 243. The rotary main shaft 242 drives the sampling cylinder 210 to rotate so that the rotating pointed teeth 214 act on the soil, facilitating the insertion of the sampling cylinder 210 into the soil for sampling.

[0040] In one embodiment, as Figures 2 - 6As shown, the rotating main shaft 242 is a hollow structure. The pushing-out assembly 250 includes a push plate portion 251, a push rod member 252, and a wire winding wheel 254. The push plate portion 251 is arranged inside the sampling cylinder body 210, and the edge of the push plate portion 251 is axially slidably engaged with the inner wall of the sampling cylinder body 210. The push rod member 252 can slidably penetrate the rotating main shaft 242. The bottom end of the push rod member 252 is fixedly connected to the push plate portion 251, and a rotating head 253 is arranged at the top of the push rod member 252 and is rotationally engaged therewith. The wire winding wheel 254 is rotatably arranged on the upper circular frame 220, and the main shaft of the upper circular frame 220 is connected to the output end of the wire winding motor 255. The wire winding wheel 254 winds a pulling wire 256, and one end of the pulling wire 256 is connected to the rotating head 253. In the embodiment of the present invention, the wire winding motor 255 does not have a braking mechanism. In the non-operating state of the wire winding motor 255, the wire winding wheel 254 can freely rotate to wind and release the pulling wire 256. When the sampling cylinder body 210 is inserted into the soil for sampling, the soil core sample enters the inside of the sampling cylinder body 210 and upwardly pushes the push plate portion 251. The push plate portion 251 and the push rod member 252 move upward. The push rod member 252 pulls the pulling wire 256 through the rotating head 253. The pulling wire 256 pulls the wire winding wheel 254 to rotate and release the pulling wire 256. When it is necessary to push out the soil core sample from the inside of the sampling cylinder body 210, the wire winding motor 255 operates and drives the wire winding wheel 254 to rotate back. The wire winding wheel 254 winds the pulling wire 256. Under the pulling of the pulling wire 256, the push rod member 252 and the push plate portion 251 move downward. The push plate portion 251 acts on the soil core sample and pushes it out of the sampling cylinder body 210, so as to quickly take out the soil core sample.

[0041] In one embodiment, as Figure 1 and Figure 7 shown, the pressure application support member 100 includes a top beam portion 110 and two support members respectively arranged on both sides of the top beam portion 110. The top beam portion 110 is connected to the top of the clamping seat member 500. The support member includes a movable support frame 130 and two roller portions 120. The top of the movable support frame 130 is rotatably connected to the side of the top beam portion 110. The two roller portions 120 are respectively arranged at both ends of the bottom of the movable support frame 130. At least one double-headed cylinder member 140 is further arranged between the two movable support frames 130. The two ends of the double-headed cylinder member 140 are respectively hinged to the side portions of the two movable support frames 130. In the embodiment of the present invention, the roller portions 120 at the bottom of the movable support frame 130 are in contact with the ground and play a supporting role. The double-headed cylinder member 140 acts on the two movable support frames 130 through expansion and contraction. The two movable support frames 130 rotate around their connection points with the top beam portion 110, so that the roller portions 120 on the two movable support frames 130 move away from each other. The top beam portion 110 gradually moves down or up along the main frame body 400. The top beam portion 110 acts on the sampling cylinder mechanism 200 through the clamping seat member 500 to make it lift and lower, so as to complete the work of inserting into the ground and pulling out of the ground.

[0042] In one embodiment, Figure 1 and Figure 7 As shown, a base portion 300 is also provided on the lower side of the pressure bracket component 100, and the base portion 300 has two slides and a fastening seat on the side wall of the base portion 300, and the roller portion 120 is installed in the slide and can roll therein; in the embodiment of the present invention, before sampling, the base portion 300 is placed horizontally on the ground and fixed to the ground by the fastening seat and the ground nails; because the roller portion 120 rolls in the slide on the base portion 300, the stability of the entire device can be guaranteed, and the sampling tube mechanism 200 is prevented from tilting due to the uneven ground caused by the roller portion 120 directly contacting the ground, thereby increasing the resistance of the sampling tube body 210 to be inserted into the soil.

[0043] In one embodiment, Figure 1 , Figure 2 , Figure 7 , Figure 8 , Figure 9 and Figure 10 As shown, a mounting ring 221 is provided at the bottom of the upper circular frame 220, and the mounting ring 221 is rotatably connected to the outer wall of the sampling cylinder 210, and the clamping seat component 500 includes two semicircular clamping ring assemblies 510, and the two semicircular clamping ring assemblies 510 can be combined into a clamping hoop portion clamped on the outside of the mounting ring 221, and each of the semicircular clamping ring assemblies 510 is fixedly connected to a fixed support arm 520 on the side, one of the fixed support arms 520 is fixedly connected to the top beam portion 110, and an upper movable seat 530 is provided on the top of the other fixed support arm 520, and the upper movable seat 530 is slidably matched with the guide hole 150 opened on the top beam portion 110; the upper movable seat 530 is connected to the side wall of the guide hole 150 by an upper return spring 540 Connection; In the embodiment of the present invention, when installing the sampling tube mechanism 200, the staff moves one of the fixed arms 520 so that the upper movable seat 530 compresses the upper return spring 540 and moves along the guide hole 150, so that the two semicircular clamping ring assemblies 510 are separated from each other and the distance between the two semicircular clamping ring assemblies 510 is increased, and the sampling tube mechanism 200 can be placed between the two semicircular clamping ring assemblies 510, and the fixed arm 520 is loosened. Under the elastic force of the upper return spring 540 to restore the deformation, the upper movable seat 530 and the fixed arm 520 move back, and the two semicircular clamping ring assemblies 510 clamp the mounting ring 221 accordingly, so that the sampling tube mechanism 200 can be quickly fixed and the sampling tube mechanism 200 is easy to disassemble.

[0044] In one embodiment, Figure 1 , Figure 2 , Figure 7 , Figure 8 , Figure 9 and Figure 10As shown, the semi-circular snap ring assembly 510 includes a semi-circular snap ring 511, a semi-circular supporting strip 512, and an outer semi-circular connecting ring 513. The bottom of the semi-circular snap ring 511 is fixedly connected to the fixed support arm 520. The semi-circular supporting strip 512 is arranged on the inner side wall of the semi-circular snap ring 511 and is used to support the mounting ring 221. The outer wall of the semi-circular snap ring 511 has a semi-circular sliding groove, and the outer semi-circular connecting ring 513 is rotatably slidably arranged in the semi-circular sliding groove. The upper end of the semi-circular snap ring 511 has a plurality of pressing members, and the pressing members can press on the mounting ring 221 on the semi-circular supporting strip 512. In the embodiment of the present invention, when the two semi-circular snap rings 511 are opposed to form a ring, the mounting ring 221 is on the annular seat formed by the two semi-circular supporting strips 512. The operator rotates one of the outer semi-circular connecting rings 513, and both outer semi-circular connecting rings 513 rotate and slide in the semi-circular sliding groove. The two ends of the outer semi-circular connecting ring 513 are respectively in the semi-circular sliding grooves on the two semi-circular snap rings 511, so as to limit the separation of the two semi-circular snap rings 511 and ensure the fastening of the clamping of the mounting ring 221 by the two semi-circular snap rings 511. The rotational sliding of the outer semi-circular connecting ring 513 also acts on the pressing members, so that the pressing members are placed on the upper side of the mounting ring 221 and limit the upward movement of the mounting ring 221, ensuring the firm clamping of the upper circular frame 220.

[0045] In one embodiment, as Figure 1 , Figure 2 , Figure 7 , Figure 8 , Figure 9 and Figure 10 shown, the pressing member includes a limiting portion 514 and a follower strip frame 516. The limiting portion 514 is located on the semi-circular snap ring 511, and one end of the limiting portion 514 is rotatably connected to the upper end of the semi-circular snap ring 511 through a support portion 515. One end of the follower strip frame 516 is fixedly connected to the limiting portion 514, and the other end of the follower strip frame 516 extends to the upper side of the outer semi-circular connecting ring 513. A plurality of driving columns 517 are arranged on the outer semi-circular connecting ring 513, and the driving columns 517 are correspondingly inserted into the interior of the follower strip frame 516. In the embodiment of the present invention, when the outer semi-circular connecting ring 513 rotates and slides in the semi-circular sliding groove, the outer semi-circular connecting ring 513 acts on the follower strip frame 516 through the driving columns 517, and the follower strip frame 516 drives the limiting portion 514 and the support portion 515 to rotate. Thus, the limiting portion 514 can rotate to the upper side of the mounting ring 221 or rotate to the outside of the semi-circular snap ring 511. When the limiting portion 514 is on the upper side of the mounting ring 221, it can cooperate with the semi-circular supporting strip 512 to fix the mounting ring 221, realizing the fixation of the upper circular frame 220. When the limiting portion 514 rotates to the outside of the semi-circular snap ring 511, it is convenient to disassemble the upper circular frame 220 from between the two semi-circular snap ring assemblies 510.

[0046] The above embodiment provides a geological exploration soil core sample sampler. Among them, the pressure application support member 100 applies a downward pressure to the top of the sampling cylinder mechanism 200 through the clamping seat member 500. At the same time, the rotary drive member 240 operates and drives the sampling cylinder body 210 to rotate. The pointed teeth 214 at the bottom of the sampling cylinder body 210 act on the soil, and under the downward pressing force of the pressure application support member 100, the sampling cylinder body 210 gradually inserts into the soil, and the soil core sample is gradually placed inside the sampling cylinder body 210. The end of the pushing component 250 extending into the sampling cylinder body 210 moves towards the top of the sampling cylinder body 210 under the pushing of the soil core sample until the soil core sample fills the inside of the sampling cylinder body 210. The staff controls the temperature regulating component 230 to operate. The temperature regulating component 230 makes the water in the multiple hollow seals 213 gradually solidify and form ice blocks through heat exchange. The solidification of water into ice blocks causes the hollow seals 213 to expand. The hollow seals 213 protrude towards the side wall inside the sampling cylinder body 210 and squeeze the side wall of the soil core sample, forming a relatively shallow arc groove on the side wall of the soil core sample. The part of the hollow seal 213 placed inside the sampling cylinder body 210 is stuck in the arc groove, effectively increasing the friction with the soil core sample and blocking the relative movement of the soil core sample with respect to the sampling cylinder body 210. At the same time, the temperature inside the hollow seal 213 decreases and is conducted to the soil core sample through the side wall of the hollow seal 213. The soil core sample is cooled and the water stains inside it gradually solidify. The water stains near the outer wall of the soil core sample solidify into ice blocks and adhere to the inner wall of the sampling cylinder body 210. Further increasing the adhesion between the soil core sample and the inner wall of the sampling cylinder body 210. The pressure application support member 100 applies an upward pulling force to the sampling cylinder mechanism 200, and the sampling cylinder mechanism 200 moves upward. Since the side wall of the hollow seal 213 is stuck in the arc groove of the soil core sample, it plays a role in preventing the soil core sample from detaching from the inside of the sampling cylinder body 210, and the water stains on the outer wall of the soil core sample solidify into ice stains and adhere to the inner wall of the sampling cylinder body 210, further increasing the resistance for the soil core sample to detach from the inside of the sampling cylinder body 210. Thus, when pulling out the sampling cylinder mechanism 200, it effectively avoids the phenomenon of the soil core sample falling off and ensures the integrity of the soil core sample. When the sampling cylinder mechanism 200 is removed from the soil, the temperature regulating component 230 liquefies the ice blocks in the hollow seal 213 again through heat exchange and the volume decreases. The hollow seal 213 shrinks and completely retracts into the installation opening 212. The hollow seal 213 no longer blocks the movement of the soil core sample inside the sampling cylinder body 210. At the same time, the temperature of the hollow seal 213 rises and liquefies the ice stains in the soil core sample, reducing the adhesion between the soil core sample and the inner wall of the sampling cylinder body 210. The pushing component 250 operates and the end of the pushing component 250 extending into the sampling cylinder body 210 moves towards the port of the sampling cylinder body 210. The pushing component 250 can quickly push the soil core sample out of the inside of the sampling cylinder body 210, realizing rapid discharging, so as to facilitate subsequent detection of the soil core sample.

[0047] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

Claims

1. A soil core sampler for geological exploration, comprising a pressure support component, a sampling tube mechanism and a main frame, wherein the pressure support component can be slidably arranged on the main frame and the sampling tube mechanism can be detachably installed in the middle position of the pressure support component through a holder component, characterized in that: The pressure-applying bracket component can apply an upward or downward force to the sampling tube mechanism so that the sampling tube mechanism is inserted into the soil and samples are taken; The sampling cylinder mechanism comprises a sampling cylinder body, an upper circular frame, a temperature adjustment component, a rotating drive component and a pushing component; The upper circular frame is connected to the card holder component, the top of the sampling cylinder is inserted into the upper circular frame and rotates with it, the rotary drive member is arranged on the upper circular frame and connected to the top of the sampling cylinder; a plurality of circumferentially distributed sharp teeth are arranged on the bottom wall of the sampling cylinder; The sampling cylinder has an inner shell and an inner cavity between the inner shell and the outer wall; the inner shell is provided with a plurality of mounting openings and each mounting opening is provided with a hollow sealing body; Water is stored inside the hollow sealing body, and the side wall of the hollow sealing body facing the inside of the sampling cylinder has expansion and contraction properties; The temperature regulating component is arranged on the top of the upper circular frame and the plurality of hollow sealed bodies are connected to the temperature regulating component, and the temperature regulating component is used to regulate the temperature inside the hollow sealed body so as to solidify and liquefy the water; One end of the pushing component extends to the interior of the sampling cylinder and the upper end of the pushing component extends to the top of the sampling cylinder. The pushing component is used to push the soil core sample in the sampling cylinder.

2. The geological survey soil core sampler according to claim 1, characterized in that: The temperature control assembly includes a temperature control air conditioner, two liquid guide pipes and a plurality of heat exchange annular pipes; A plurality of heat exchange annular tubes are arranged inside the inner cavity and surround the outer wall of the inner liner of the sampling cylinder, and the heat exchange annular tubes are connected to the hollow sealing body; The two liquid guide tubes are located inside the inner cavity and are connected to multiple heat exchange annular tubes. The top of the liquid guide tubes is connected to a temperature regulating air conditioner; the temperature regulating air conditioner is located at the top of the sampling cylinder and is used to adjust the temperature of the heat exchange medium circulating in the heat exchange annular tubes and the liquid guide tubes.

3. The geological survey soil core sampler according to claim 2, characterized in that: A plurality of groups of hollow sealing bodies are axially distributed on the inner wall of the sampling cylinder, and each group of hollow sealing bodies is multiple and circumferentially distributed.

4. The geological survey soil core sampler according to claim 1, characterized in that: The rotary drive member includes a rotary motor and a rotary spindle; The rotating motor is installed on the upper circular frame, one end of the rotating main shaft is rotatably connected to the upper circular frame and the other end is fixedly connected to the top center of the sampling cylinder, and gear pairs are arranged on the output end of the rotating motor and the rotating main shaft, and the two gear pairs are meshed.

5. The geological survey soil core sampler according to claim 4, characterized in that: The rotating main shaft is a hollow structure, and the pushing assembly includes a pushing plate portion, a pushing rod member and a winding wheel; The push plate part is arranged inside the sampling cylinder, and the edge of the push plate part and the inner wall of the sampling cylinder can be axially slidably matched; The push rod member can slide through the rotating main shaft, the bottom end of the push rod member is fixedly connected to the push plate portion and a rotating head is provided on the top of the push rod member to rotate with it, the winding wheel is rotatably arranged on the upper circular frame and the main shaft of the upper circular frame is connected to the output end of the winding motor, the winding wheel is wound with a pulling wire and one end of the pulling wire is connected to the rotating head.

6. The geological survey soil core sampler according to claim 1, characterized in that: The pressure support component includes a top beam and two support components respectively arranged on both sides of the top beam, and the top beam is connected to the top of the clamping seat component; The supporting component includes a movable supporting frame and two roller parts. The top of the movable supporting frame is rotatably connected to the side of the top beam part. The two roller parts are respectively arranged at the two end parts of the bottom of the movable supporting frame. At least one double-headed cylinder part is also arranged between the two movable supporting frames. The two ends of the double-headed cylinder part are respectively connected to the side parts of the two movable supporting frames.

7. The soil core sampler for geological survey according to claim 6, characterized in that: A base portion is also arranged on the lower side of the pressure bracket component. The base portion is provided with two slideways and a fastening seat is arranged on the side wall of the base portion. The roller portion is installed in the slideway and can roll therein.

8. The geological survey soil core sampler according to any one of claims 1 to 7, characterized in that: The bottom of the upper circular frame is provided with a mounting ring which is rotatably connected to the outer wall of the sampling cylinder, and the clamping seat component includes two semicircular clamping ring assemblies; The two semicircular clamp ring assemblies can be combined into a clamping hoop portion clamped on the outside of the mounting ring, and the side of each of the semicircular clamp ring assemblies is fixedly connected to a fixed support arm, one of the fixed support arms is fixedly connected to the top beam portion, and an upper movable seat is provided on the top of the other fixed support arm, and the upper movable seat is slidably matched with a guide hole provided on the top beam portion; The upper movable seat is connected to the side wall of the guide hole through an upper return spring.

9. The geological survey soil core sampler according to claim 8, characterized in that: The semicircular clamping ring assembly comprises a semicircular clamping ring, a semicircular supporting strip plate and an outer semicircular connecting ring; The bottom of the semicircular snap ring is fixedly connected to the fixed support arm, and the semicircular supporting strip is arranged on the inner side wall of the semicircular snap ring and is used to support the mounting ring; the outer wall of the semicircular snap ring has a semicircular sliding groove, and the outer semicircular connecting ring is rotatably slidably arranged in the semicircular sliding groove; The upper end of the semicircular clamping ring is provided with a plurality of pressing blocks, and the pressing blocks can be pressed on the mounting ring on the semicircular supporting strip.

10. The geological survey soil core sampler according to claim 9, characterized in that: The pressing block comprises a limiting portion and a follower bar frame; The limiting portion is located on the semicircular clamping ring and one end of the limiting portion is rotatably connected to the upper end of the semicircular clamping ring through a support portion, one end of the follower frame is fixedly connected to the limiting portion and the other end of the follower frame extends to the upper side of the outer semicircular connecting ring, and a plurality of active columns are arranged on the outer semicircular connecting ring and the active columns are correspondingly inserted into the interior of the follower frame.

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