Portable sampler for geological exploration

Abstract

The invention relates to the technical field of geological exploration, in particular to a portable sampler for geological exploration, which comprises a fixed cylinder, a sampling tube and the like, a sampling tube is mounted at the lower part of the fixed cylinder. The flow guide cylinders are blocked through the guide cylinders, so that the sampling pipe is in a closed state in the process of being inserted into the wetland marsh, and after the sampling pipe is inserted into the wetland marsh, the guide cylinders move downwards, so that the guide cylinders are separated from the corresponding flow guide cylinders; according to the sludge sampling device, the sludge can enter the sampling pipe automatically through the feeding port in the sampling pipe, then flows into the containing cavity of the sampling pipe through the through hole in the guide cylinder, flows to the outer wall of the guide cylinder when flowing into the containing cavity of the sampling pipe, and then is guided through the outer wall of the guide cylinder; sludge in the wetland marsh is sampled, and the sludge is filtered through all the filter screens on the sampling pipe, so that impurities entering the sampling pipe are reduced.

Description

Technical Field

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

[0002] A swamp refers to a state where the surface and subsurface soil are in an overly wet state for a long time, with wet plants and swamp plants growing on the surface. Under such environmental conditions, a peat layer is easily formed under the swamp. Peat is an important organic matter resource and plays an important role in both agriculture and industry. To explore the peat layer, it is necessary to rely on the surface morphological characteristics above the peat layer to make judgments, such as special vegetation forms. The more important and accurate method is to directly collect the swamp soil and swamp water above the peat layer for component analysis. However, the soil in the wetland swamp is silt-like, and silt at different depths has different hydrogeological characteristics and components, which makes their fluidity different.

[0003] Based on existing technology, it is found that existing sampling equipment is unable to make adaptive adjustments to silt with different fluidity when sampling silt at different depths in wetland swamps. This leads to a significant increase in energy consumption during the entire sampling process of the sampling equipment, while increasing the probability of failure of the sampling equipment, which is not conducive to the efficient implementation of sampling operations. Summary of the Invention

[0004] In order to overcome the shortcoming that existing sampling equipment cannot make adaptive adjustments to silt with different fluidities when sampling silt at different depths in wetlands and swamps, the present invention provides a portable sampler for geological exploration.

[0005] The technical implementation scheme of the present invention is: a portable sampler for geological exploration, including a fixed cylinder and a sampling tube; the sampling tube is installed at the lower part of the fixed cylinder, the sampling tube is provided with a plurality of feed ports, at least three accommodating chambers are provided in the sampling tube, and a plurality of blocking blocks are provided in the sampling tube, the blocking blocks are used to block the feed ports of the accommodating chambers; it also includes a pump, a round tube, a sleeve, an air guide tube, a drive assembly, a flow guide tube, a magnet and a blocking assembly; an air supply pipe is fixedly connected to the sampling tube; a pump is fixedly connected to the fixed cylinder; a pump The air inlet is fixedly connected to and communicated with a round tube; a sleeve is slidably connected to the round tube; a plurality of air guide tubes are fixedly connected to and communicated with the sleeve, and all air guide tubes located at the same height are a group; a driving assembly is connected to the fixed tube; the driving assembly is connected to the sleeve, and the driving assembly is used to drive the sleeve to move; at least three guide tubes are fixedly connected to the sampling tube, and a through hole is opened on the guide tube; a magnet is fixedly connected to each guide tube; all magnets are slidably connected to the sleeve; a sealing assembly for sealing the guide tube is connected to the sleeve.

[0006] Furthermore, the lower portion of the sampling tube is configured to be in an inverted cone shape.

[0007] Furthermore, the blocking assembly includes a guide tube, a T-shaped tube, a disc and an airbag; at least three guide tubes are slidably connected to the sleeve; each guide tube is provided with a thin iron sheet that cooperates with the magnet; each guide tube is in contact with a guide tube; each guide tube is fixed with a T-shaped tube, and the T-shaped tube has a plurality of through holes; all T-shaped tubes are slidably connected to the sleeve; each T-shaped tube is fixed with a disc, and each disc is provided with a displacement sensor; all discs are slidably connected to the sleeve; and each disc is installed with an airbag.

[0008] Furthermore, the guide tube and the guide tube are both configured to be conical in shape.

[0009] Furthermore, a breathable membrane is provided on the through hole of the T-shaped cylinder.

[0010] Furthermore, the interior of the sampling tube is coated with an anti-stick coating.

[0011] Furthermore, a filter screen is also included; a filter screen is fixedly connected to each feed port on the sampling tube, and the filter screens located at the same horizontal height are grouped together, and each group of filter screens corresponds to a guide tube position.

[0012] Furthermore, it also includes a sampling auxiliary system; the sampling auxiliary system is connected to the fixed cylinder; the sampling auxiliary system includes a motor, a spur gear, a transmission wheel, a spur gear ring, a ring sleeve, a round rod and a round ring; the motor is fixed to the fixed cylinder through a bracket, and the transmission wheel is rotatably connected to the bracket; the spur gear is fixed to the output shaft of the motor; the spur gear is meshed with the transmission wheel; the ring sleeve is rotatably connected to the fixed cylinder; the spur gear ring is fixed to the inner side of the ring sleeve; the spur gear ring is meshed with the transmission wheel; at least four round rods are connected to the ring sleeve; all the round rods are fixed to a ring at one end away from the ring sleeve.

[0013] Furthermore, it also includes a three-way valve, an annular tube, an air guide block and an air nozzle; at least two air supply channels I are provided on the fixed cylinder; at least two air supply channels II are provided on the sampling tube, and each air supply channel II is connected to a corresponding air supply channel I; a three-way valve is installed on the circular tube; the air outlet of the three-way valve is fixedly connected to and connected with an annular tube; the air outlet of the annular tube is connected to all air supply channels I; an air guide block is fixedly connected to the sampling tube; the air guide block is connected to the air supply channel II; and several air nozzles are fixedly connected to the air guide block.

[0014] Furthermore, a diaphragm is also included; each air nozzle is fixed with a diaphragm, and the diaphragm is made of rubber, and each diaphragm is divided into four equal parts.

[0015] The advantages and positive effects of the present invention are:

[0016] (1) The guide tube is sealed by the guide tube, so that the sampling tube is in a closed state during the process of being inserted into the wetland swamp. After the sampling tube is inserted into the wetland swamp, it is moved downward through the guide tube, so that the guide tube is separated from the corresponding guide tube, and then the sludge will automatically enter the sampling tube through the inlet on the sampling tube, and then flow into the storage chamber of the sampling tube through the through hole on the guide tube. When the sludge flows into the storage chamber of the sampling tube, it will flow to the outer wall of the guide tube, and then the sludge will be guided by the outer wall of the guide tube, thereby realizing the sampling of the sludge in the wetland swamp, and filtering the sludge through all the filter screens on the sampling tube to reduce the impurities entering the sampling tube.

[0017] (2) By controlling the pump to start the operation, negative pressure is generated in the circular tube, and then negative pressure is generated in the casing, so that suction is performed through the multiple air ducts on the casing, so that negative pressure is generated in the receiving chamber of the sampling tube, thereby sucking the silt in the wetland swamp, thereby increasing the sampling speed of the silt in the wetland swamp.

[0018] (3) As the silt gradually increases, the silt will squeeze the airbag and move the airbag upward, thereby causing the guide tube to move and reset and attract the corresponding guide tube, and the guide tube is sealed by the guide tube. At the same time, the pump is still in operation, so that a vacuum state is formed in the storage chamber where the sampling is completed, and the airbag corresponding to the storage chamber in the vacuum state expands and sucks out the gas in the silt in the storage chamber. At the same time, the sleeve can distribute more negative pressure suction to the remaining two storage chambers to help the remaining two storage chambers to suck the silt, thereby improving the overall sampling speed. Compared with the existing technology, it can greatly improve the sampling speed of the silt in the wetland swamp, and can timely adjust the negative pressure generated in the storage chamber for silt with different fluidity, thereby reducing the sampling energy consumption.

[0019] (4) Impurities attached to the filter screen are scraped off by rotating all the round rods, thereby preventing the filter screen from being blocked by impurities and affecting the sampling operation of the sampling tube. The negative pressure space is destroyed by blowing gas to the silt outside the sampling tube, thereby increasing the gap between the sampling tube and the silt, making it easier to extract the sampling tube from the silt. In addition, the setting of the diaphragm can reduce the phenomenon that the silt in the wetland swamp enters the air guide block when the sampling tube is inserted into the wetland swamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Schematic diagram of the three-dimensional structure of the portable sampler for geological exploration of the present invention;

[0021] Figure 2 A cross-sectional view of a combination of a fixed barrel and a sampling tube of a portable sampler for geological exploration according to the present invention;

[0022] Figure 3 This is a schematic diagram of the position of the gas transmission channel II of the portable sampler for geological exploration of the present invention;

[0023] Figure 4 This is a schematic diagram of the installation position of the drive assembly of the portable sampler for geological exploration of the present invention;

[0024] Figure 5 This is a schematic diagram of the three-dimensional structure of the sealing assembly of the portable sampler for geological exploration of the present invention;

[0025] Figure 6 A schematic diagram of three accommodating chambers of a sampling tube of a portable sampler for geological exploration according to the present invention;

[0026] Figure 7 This is a schematic diagram of a state in which the guide tube of the portable sampler for geological exploration of the present invention is separated from the flow guide tube;

[0027] Figure 8 This is a schematic diagram of the three-dimensional structure of the sampling auxiliary system of the portable sampler for geological exploration of the present invention;

[0028] Figure 9 This is a schematic diagram of the installation positions of the three-way valve and the annular tube of the portable sampler for geological exploration of the present invention;

[0029] Figure 10 This is a cross-sectional view of the combination of the air guide block, the air nozzle and the diaphragm of the portable sampler for geological exploration of the present invention.

[0030] In the above drawings: 1-fixed cylinder, 2-sampling tube, 11-gas transmission channel I, 23-gas transmission channel II, 24-filter, 201-pump, 202-circular tube, 203-casing, 2031-air guide tube, 204-electric actuator, 205-fixed plate, 206-flow guide cylinder, 207-magnet, 208-guide cylinder, 209-T-shaped cylinder, 210-disc, 211-air bag, 301-motor, 302-spur gear, 303-transmission wheel, 304-spur gear ring, 305-ring sleeve, 306-round rod, 307-circular ring, 401-three-way valve, 402-annular tube, 403-gas guide block, 404-gas nozzle, 405-diaphragm. DETAILED DESCRIPTION

[0031] To make the objectives, technical solutions, and advantages of the present invention more clearly understood, the present invention will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, descriptions of well-known structures and technologies are omitted to avoid unnecessary confusion of the concepts of the present invention.

[0032] Example 1:

[0033] A portable sampler for geological exploration, according to Figure 1-Figure 7 As shown, it includes a fixed cylinder 1 and a sampling tube 2; the sampling tube 2 is installed at the lower part of the fixed cylinder 1, and a plurality of feeding ports are opened on the sampling tube 2. Three accommodating chambers are set in the sampling tube 2, and a plurality of blocking blocks are set in the sampling tube 2. The blocking blocks are used to block the feeding ports of the accommodating chambers;

[0034] It also includes a pump 201, a circular tube 202, a sleeve 203, an air guide tube 2031, a drive assembly, a guide tube 206, a magnet 207 and a blocking assembly; an air supply tube is fixedly connected to the sampling tube 2; a pump 201 is fixedly connected to the inner side of the fixed tube 1; the air inlet of the pump 201 is fixedly connected to and communicated with the circular tube 202; the sleeve 203 is slidably connected to the inner side of the circular tube 202; a plurality of air guide tubes 2031 are fixedly connected to and communicated with the sleeve 203, and all air guide tubes 2031 located at the same height are grouped together; a drive assembly is connected to the fixed tube 1; the drive assembly is connected to the sleeve 203; three guide tubes 206 are fixedly connected to the inner side of the sampling tube 2, and a through hole is opened on the guide tube 206; a magnet 207 is fixedly connected to each guide tube 206; all magnets 207 are slidably connected to the sleeve 203; a blocking assembly is connected to the sleeve 203.

[0035] The lower portion of the sampling tube 2 is configured to be in an inverted cone shape so as to facilitate quicker insertion into the sludge.

[0036] The blocking assembly includes a guide tube 208, a T-shaped tube 209, a disc 210 and an airbag 211; three guide tubes 208 are slidably connected to the sleeve 203; each guide tube 208 is provided with a thin iron sheet that cooperates with the magnet 207; each guide tube 208 is in contact with a guide tube 206; a T-shaped tube 209 is fixedly connected to the lower part of each guide tube 208, and a plurality of through holes are opened on the T-shaped tube 209; all T-shaped tubes 209 are slidably connected to the sleeve 203; a disc 210 is fixedly connected to the lower part of each T-shaped tube 209, and each disc 210 is provided with a displacement sensor; all discs 210 are slidably connected to the sleeve 203; and an airbag 211 is installed on each disc 210.

[0037] The guide tube 206 and the guide tube 208 are both configured to be conical in shape to better guide the silt.

[0038] A breathable membrane is provided on the through hole of the T-shaped cylinder 209 to prevent silt from entering the T-shaped cylinder 209 through the vent hole.

[0039] The inside of the sampling tube 2 is coated with an anti-stick coating to facilitate the removal of sludge inside the sampling tube 2.

[0040] A filter screen 24 is also included; each feed port on the sampling tube 2 is fixed with a filter screen 24, and the filter screens 24 located at the same level are grouped together, and each group of filter screens 24 corresponds to a position of a guide tube 206.

[0041] The driving assembly includes an electric actuator 204 and a fixed plate 205; two electric actuators 204 are fixed to the inner side of the fixed cylinder 1, and the electric actuators 204 are electric push rods; the telescopic parts of all electric actuators 204 are fixed to a fixed plate 205; the fixed plate 205 is fixed to the sleeve 203.

[0042] When sampling, the fixed cylinder 1 is connected to the external connecting rod to facilitate the movement of the fixed cylinder 1 and the sampling tube 2 to the wetland swamp for sampling. It should be noted that the soil in the wetland swamp is silt-like, and the fluidity of silt at different depths is different. Since each guide cylinder 208 is provided with a thin iron sheet, the initial position of the three guide cylinders 208 is attracted by a corresponding magnet 207, so that each of the three guide cylinders 208 blocks a guide cylinder 206, as shown in FIG. Figure 6 As shown, the sampling tube 2 is in a sealed state during the insertion into the wetland swamp. Then, after the sampling tube 2 is inserted into the wetland swamp, the two electric actuators 204 are controlled to start and jointly drive the fixing plate 205 to move downward. The movement of the fixing plate 205 drives the sleeve 203 to move, so that the sleeve 203 moves downward along the circular tube 202 and always maintains a connected state with the circular tube 202. The movement of the sleeve 203 drives all the air guide tubes 2031 to move downward, so that each group of air guide tubes 2031 moves and presses against a corresponding T-shaped cylinder 209, and the T The T-shaped cylinder 209 is squeezed, causing the T-shaped cylinder 209 to move downward. The movement of the T-shaped cylinder 209 drives the corresponding guide cylinder 208, the corresponding disc 210 and the corresponding airbag 211 to move downward synchronously, thereby causing the three guide cylinders 208 to separate from the corresponding one of the guide cylinders 206. Then, the two electric actuators 204 are controlled to start and jointly drive the fixing plate 205 to move upward, thereby driving all the connected components to move, thereby causing the three groups of air guide tubes 2031 to move upward and reset synchronously, and each of the three groups of air guide tubes 2031 supports a guide cylinder 208, such as Figure 7 As shown, the sludge can enter the sampling tube 2.

[0043] After the three guide cylinders 208 are separated from the corresponding guide cylinders 206, the silt in the wetland swamp will autonomously enter the sampling tube 2 through the feed port on the sampling tube 2, and then flow into the containing chamber of the sampling tube 2 through the through hole on the guide cylinder 206. When the silt flows into the containing chamber of the sampling tube 2, it will flow toward the outer wall of the guide cylinder 208, and then be guided by the outer wall of the guide cylinder 208, and finally the silt will enter the containing chamber of the sampling tube 2, thereby realizing the sampling of the silt in the wetland swamp, and filtering the silt through all the filter screens 24 on the sampling tube 2 to reduce the entry of impurities into the sampling tube 2.

[0044] In order to further improve the sampling speed of sludge, the pump 201 is controlled to start operating so that negative pressure is generated in the circular tube 202, and then negative pressure is generated in the casing 203, so that suction is performed through the multiple air guide tubes 2031 on the casing 203, so that negative pressure is generated in the accommodating chamber of the sampling tube 2, thereby sucking the sludge in the wetland swamp, thereby improving the sampling speed of the sludge in the wetland swamp.

[0045] It should be noted that when the silt enters the receiving chamber of the sampling tube 2, as the silt gradually increases, the silt will squeeze the airbag 211, and the buoyancy generated by the silt on the airbag 211 will cause the airbag 211 to move upward, and the movement of the airbag 211 will drive the disc 210 to move, and the movement of the disc 210 will drive the T-shaped cylinder 209 to move, and the movement of the T-shaped cylinder 209 will drive the guide cylinder 208 to move upward. When the guide cylinder 208 moves to its original position and is attracted by the corresponding magnet 207, it indicates that the sampling operation in the receiving chamber has been completed, and at the same time, The guide tube 208 blocks the guide tube 206. However, due to the different fluidity of silt at different depths, the sampling speeds of the three accommodating chambers of the sampling tube 2 will be different when the sampling tube 2 samples the silt. The pump 201 is still in operation until the sampling is completed in the three accommodating chambers. When any one accommodating chamber completes the sampling, the accommodating chamber is in a vacuum state, while the other two accommodating chambers are still in the pumping and sampling state. At the same time, the guide tube 208 blocks the guide tube 206, so that the sampling is completed. A vacuum state is formed in the receiving chamber, and the air bag 211 corresponding to the receiving chamber in the vacuum state expands, thereby sucking out the gas in the sludge in the receiving chamber, and at the same time, the sleeve 203 can distribute more negative pressure suction to the other two receiving chambers to help the other two receiving chambers to suck out the sludge, thereby improving the overall sampling speed, and operating through the displacement sensor on the disc 210. When all the discs 210 are moved up and reset, it means that the sampling operation in the three receiving chambers is completed, and then the fixed cylinder 1 is fixed. The sampling tube 2 can be taken out from the wetland swamp. Compared with the existing technology, the sampling speed of the sludge in the wetland swamp can be greatly improved, and the negative pressure generated in the containing chamber can be adjusted in time according to the sludge with different fluidity, thereby reducing the sampling energy consumption and improving the sampling efficiency. If a suction pump 201 is set in each containing chamber of the sampling tube 2, the overall production cost of the sampling tube 2 will increase, and the required energy consumption will be greatly increased, and the probability of failure of the sampling equipment will be increased, which is not conducive to the efficient implementation of the sampling operation.

[0046] Example 2: Based on Example 1, Figure 3-Figure 5 and Figures 8-10As shown, it also includes a sampling auxiliary system; the sampling auxiliary system is connected to the fixed cylinder 1; the sampling auxiliary system includes a motor 301, a spur gear 302, a transmission wheel 303, a spur gear ring 304, a ring sleeve 305, a round rod 306 and a ring 307; the motor 301 is fixed to the inner side of the fixed cylinder 1 through a bracket, and the transmission wheel 303 is rotatably connected to the bracket; the spur gear 302 is fixed to the output shaft of the motor 301; the spur gear 302 is meshed with the transmission wheel 303; the ring sleeve 305 is rotatably connected to the fixed cylinder 1; the spur gear ring 304 is fixed to the inner side of the ring sleeve 305; the spur gear ring 304 is meshed with the transmission wheel 303; four round rods 306 are connected to the lower surface of the ring sleeve 305; all the round rods 306 are fixed to a ring 307 at one end away from the ring sleeve 305.

[0047] It also includes a three-way valve 401, an annular tube 402, an air guide block 403 and an air nozzle 404; two air delivery channels I11 are provided on the fixed cylinder 1; two air delivery channels II23 are provided on the sampling tube 2, and each air delivery channel II23 is connected to a corresponding air delivery channel I11; a three-way valve 401 is installed on the circular tube 202; an annular tube 402 is fixedly connected to and connected to the air outlet of the three-way valve 401; the air outlet of the annular tube 402 is connected to all the air delivery channels I11; an air guide block 403 is fixedly connected to the lower end of the inner side of the sampling tube 2; the air guide block 403 is connected to the air delivery channel II23; a number of air nozzles 404 are equidistantly arranged in a ring shape on the lower inner side of the air guide block 403.

[0048] It also includes a diaphragm 405; a diaphragm 405 is fixedly connected to the inner side of each air nozzle 404, and the diaphragm 405 is made of rubber. Each diaphragm 405 is divided into four equal parts.

[0049] Due to the presence of impurities such as branches and leaves in the sludge, when the sampling tube 2 is sampling the sludge, the impurities such as branches and leaves will move with the sludge and adhere to the filter screen 24, blocking the filter screen 24 and affecting the sampling operation of the sampling tube 2. By controlling the motor 301 to start, the output shaft of the motor 301 rotates to drive the spur gear 302 to rotate, the rotation of the spur gear 302 drives the transmission wheel 303 to rotate, the rotation of the transmission wheel 303 drives the spur gear ring 304 to rotate, the rotation of the spur gear ring 304 drives the ring sleeve 305 to rotate, and the rotation of the ring sleeve 305 drives all the round rods 306 to rotate along the outer wall of the sampling tube 2, that is, all the round rods 306 rotate along the outside of the filter screen 24, and then the impurities attached to the filter screen 24 are scraped off by the rotation of all the round rods 306, thereby avoiding the problem that the impurities block the filter screen 24 and affect the sampling operation of the sampling tube 2.

[0050] And after the sampling tube 2 has completed sampling, when the sampling tube 2 is drawn out from the wetland swamp, the silt in the wetland swamp will squeeze the sampling tube 2 when the sampling tube 2 is inserted into the wetland swamp, and the sampling tube 2 will suck the silt when sampling, which will increase the pressure caused by the silt on the sampling tube 2, thereby causing the sampling tube 2 to be time-consuming and labor-intensive to be taken out from the wetland swamp. After the sampling tube 2 has completed sampling, the three-way valve 401 is controlled to start operating to close the air flow channel between the circular tube 202 and the sleeve 203, and at the same time, the air flow channel between the circular tube 202 and the annular tube 402 is opened, and then the pump 201 is controlled to start operating to pass through the three-way valve 40 1 transports gas into the annular tube 402, thereby causing the gas to flow downward along the two gas delivery channels I11 on the fixed cylinder 1 and flow into the gas delivery channel II23 on the sampling tube 2, and finally causing the gas to enter the gas guide block 403 and be blown toward the diaphragm 405 through the gas nozzle 404, thereby causing the diaphragm 405 to expand, thereby causing the gas to blow toward the silt outside the sampling tube 2, destroying the negative pressure space, thereby increasing the gap between the sampling tube 2 and the silt, thereby facilitating the extraction of the sampling tube 2 from the silt, and the provision of the diaphragm 405 can reduce the phenomenon that the silt in the wetland swamp enters the gas guide block 403 when the sampling tube 2 is inserted into the wetland swamp.

[0051] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A portable sampler for geological exploration, comprising a fixed tube (1) and a sampling tube (2); the sampling tube (2) is mounted on the lower portion of the fixed tube (1), the sampling tube (2) is provided with a plurality of feed ports, the sampling tube (2) is provided with at least three accommodating chambers, and the sampling tube (2) is provided with a plurality of blocking blocks, the blocking blocks being used to block the feed ports of the accommodating chambers; the portable sampler is characterized by: The invention also includes a pump (201), a circular tube (202), a sleeve (203), an air guide tube (2031), a driving assembly, a flow guide tube (206), a magnet (207) and a blocking assembly; an air delivery tube is fixedly connected to the sampling tube (2); a pump (201) is fixedly connected to the fixed tube (1); an air inlet of the pump (201) is fixedly connected to and communicated with the circular tube (202); a sleeve (203) is slidably connected to the circular tube (202); a plurality of air guide tubes (2031) are fixedly connected to and communicated with the sleeve (203), and all of the air guide tubes (2031) located at the same height are fixedly connected to and communicated with the circular tube (202). The air guide tube (2031) is a group; a driving assembly is connected to the fixed tube (1); the driving assembly is connected to the sleeve (203), and the driving assembly is used to drive the sleeve (203) to move; at least three guide tubes (206) are fixed to the sampling tube (2), and the guide tubes (206) are provided with through holes; each guide tube (206) is fixed to a magnet (207); all magnets (207) are slidably connected to the sleeve (203); and a blocking assembly for blocking the guide tube (206) is connected to the sleeve (203).

2. A portable sampler for geological exploration according to claim 1, characterized in that: The lower part of the sampling tube (2) is arranged in an inverted cone shape.

3. A portable sampler for geological exploration according to claim 1, characterized in that: The blocking component comprises a guide tube (208), a T-shaped tube (209), a disc (210) and an air bag (211); at least three guide tubes (208) are slidably connected to the sleeve (203); each guide tube (208) is provided with a thin iron sheet that matches the magnet (207); each guide tube (208) is in contact with a guide tube (206); each guide tube (208) is fixedly connected to a T-shaped tube (209), and the T-shaped tube (209) is provided with a plurality of through holes; all T-shaped tubes (209) are slidably connected to the sleeve (203); each T-shaped tube (209) is fixedly connected to a disc (210), and each disc (210) is provided with a displacement sensor; all discs (210) are slidably connected to the sleeve (203); An air bag (211) is mounted on each disc (210).

4. A portable sampler for geological exploration according to claim 3, characterized in that: The guide tube (206) and the guide tube (208) are both configured to be conical in shape.

5. A portable sampler for geological exploration according to claim 3, characterized in that: A breathable membrane is provided on the through hole of the T-shaped cylinder (209).

6. A portable sampler for geological exploration according to claim 3, characterized in that: The inside of the sampling tube (2) is coated with an anti-stick coating.

7. A portable sampler for geological exploration according to any one of claims 3 to 6, characterized in that: It also includes a filter screen (24); each feed port on the sampling tube (2) is fixed with a filter screen (24), and the filter screens (24) located at the same level are grouped together, and each group of filter screens (24) corresponds to the position of a guide tube (206).

8. A portable sampler for geological exploration according to claim 7, characterized in that: The invention also includes a sampling auxiliary system; the sampling auxiliary system is connected to the fixed cylinder (1); the sampling auxiliary system includes a motor (301), a spur gear (302), a transmission wheel (303), a spur gear ring (304), a ring sleeve (305), a round rod (306) and a circular ring (307); the fixed cylinder (1) is fixed with the motor (301) via a bracket, and the transmission wheel (303) is rotatably connected to the bracket; the output shaft of the motor (301) is fixed with the motor (301) A spur gear (302) is provided; the spur gear (302) is meshed with a transmission wheel (303); a ring sleeve (305) is rotatably connected to the fixed cylinder (1); a spur gear ring (304) is fixedly connected to the inner side of the ring sleeve (305); the spur gear ring (304) is meshed with the transmission wheel (303); at least four round rods (306) are connected to the ring sleeve (305); and one end of all the round rods (306) away from the ring sleeve (305) is fixedly connected to a circular ring (307).

9. A portable sampler for geological exploration according to claim 8, characterized in that: The apparatus further comprises a three-way valve (401), an annular tube (402), an air guide block (403) and an air nozzle (404); at least two air delivery channels I (11) are provided on the fixed cylinder (1); at least two air delivery channels II (23) are provided on the sampling tube (2), and each air delivery channel II (23) is communicated with a corresponding air delivery channel I (11); a three-way valve (401) is installed on the circular tube (202); the air outlet of the three-way valve (401) is fixedly connected to and communicated with the annular tube (402); the air outlet of the annular tube (402) is communicated with all the air delivery channels I (11); a air guide block (403) is fixedly connected to the sampling tube (2); the air guide block (403) is communicated with the air delivery channel II (23); and a plurality of air nozzles (404) are fixedly connected to the air guide block (403).

10. A portable sampler for geological exploration according to claim 9, characterized in that: It also includes a diaphragm (405); each air nozzle (404) is fixed with a diaphragm (405), and the diaphragm (405) is made of rubber, and each diaphragm (405) is divided into four equal parts.

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