Sampling device for geological environment monitoring

Abstract

The invention discloses a sampling device for geological environment monitoring, belongs to the field of geological sampling, and aims to solve the problem that when soil in a sampling barrel is directly poured out, due to the lack of effective layered isolation measures, all layers of the soil are very easy to mix, so that a sampled sample cannot accurately reflect the accuracy of all the soil layers. A sampling device for geological environment monitoring comprises a base, a hydraulic cylinder fixedly connected to the upper portion of the middle of the base, a hydraulic rod fixedly connected to the output end of the hydraulic cylinder and a first sampling barrel fixedly connected to the lower end of the hydraulic rod. According to the sampling device, the pulling mechanism is driven to move upwards when the first sampling barrel moves upwards, then the second sampling barrel is driven to enter the inner side of the first sampling barrel for sampling, and compared with the prior art, samples do not need to be poured out of the first sampling barrel, but are directly sampled, layering is stable, and therefore the purpose that sampling is more accurate is achieved.

Description

Technical Field

[0001] The invention relates to the field of geological sampling, and in particular to a sampling device for geological environment monitoring. Background Art

[0002] The sampling device for geological environment monitoring is mainly used to obtain various samples in the geological environment. These samples include soil, etc. By collecting soil samples from different locations and depths, the mineral composition can be analyzed. For example, it can be determined whether the soil contains various metal elements and non-metallic elements such as iron, aluminum, potassium, and their content. This is critical to understanding the soil fertility. For example, the content of nitrogen, phosphorus, and potassium in the soil can help determine whether the land is suitable for crop growth.

[0003] The publication number is CN116929827A, which discloses a sampling device for geological environment monitoring, and relates to the technical field of sampling equipment, including a placement frame and a sampling mechanism, and the placement frame is provided with an activity space for installing the sampling mechanism; the sampling mechanism includes a lifting motor, a rotating plate, a lifting box and a drill tube arranged in sequence from top to bottom, and the two sides of the rotating plate are rotatably connected to the activity space. In the field of geological environment monitoring, it is very important to accurately obtain representative soil samples. A commonly used soil sampling method is to insert the sampling tube into the soil, then pull the sampling tube upward, and rely on friction to drive the soil to move upward together, and finally pour the soil out of the sampling tube to complete the sampling. This traditional sampling method is relatively simple to operate and can quickly obtain soil samples in many scenarios. However, in practical applications, especially when it is necessary to perform stratified analysis on the soil, its limitations are highlighted. The soil usually presents a clear stratified structure in its natural state, and the soil at different levels has differences in physical, chemical and biological properties. For example, the surface soil may be rich in humus and have high microbial activity, while the deep soil may contain different mineral components and physical and chemical properties. These stratification information is of great significance for studying the formation process of soil, the migration and transformation of pollutants, and the function of soil ecosystems. When the soil in the sampling tube is poured out directly, due to the lack of effective stratification and isolation measures, the soil layers are very likely to mix, which will result in the samples taken being unable to accurately reflect the accuracy of each soil layer.

[0004] To solve the above problems, a sampling device for geological environment monitoring is proposed. Summary of the invention

[0005] The purpose of the present invention is to provide a sampling device for geological environment monitoring, which solves the problem that the samples taken cannot accurately reflect the accuracy of each soil layer.

[0006] To achieve the above object, the present invention provides the following technical solutions: A sampling device for geological environment monitoring, comprising a base, a hydraulic cylinder fixedly connected to the middle upper part of the base, a hydraulic rod fixedly connected to the output end of the hydraulic cylinder, a first sampling tube fixedly connected to the lower end of the hydraulic rod, a pulling mechanism fixedly connected to the outer side of the hydraulic rod, and a rotating mechanism arranged on the inner side of the pulling mechanism;

[0007] The pulling mechanism includes a sliding assembly and a guide assembly, and the guide assembly is arranged on one side of the sliding assembly;

[0008] The sliding assembly includes a first connecting rod arranged on the outside of the hydraulic rod, a first pull plate arranged below the first connecting rod, first grooves arranged inside both sides of the first pull plate, a first hole is connected above the first groove, a second pull plate is arranged on the inner side of the first groove, a pull rod is fixedly connected to the upper end of the second pull plate, the uppermost pull rod is fixedly connected to the first connecting rod, and the remaining pull rods are fixedly connected to the first pull plates corresponding to the upper parts, a sampling hole is provided on the side of the first sampling cylinder close to the first connecting rod, a second hole is arranged in the middle of the first pull plate, a second sampling cylinder is arranged on the inner side of the second hole, the central axis of the second sampling cylinder is perpendicular to the central axis of the first sampling cylinder, a detachable material dish is arranged on the side of the first pull plate close to the first sampling cylinder, a first sliding groove is arranged inside the hydraulic rod, a third sliding block fixedly connected to the first connecting rod is arranged inside the first sliding groove, and a spring fixedly connected to the hydraulic rod is fixedly connected below the third sliding block.

[0009] Preferably, the sampling holes are evenly distributed inside the first sampling cylinder, and the number of the pull rods is consistent with the number of the sampling holes.

[0010] Preferably, the width of the first groove is greater than the width of the first hole, and the inner side surface of the first hole fits the outer side surface of the pull rod, and the central axis of the pull rod is perpendicular to the lower surface of the base.

[0011] Preferably, the guide assembly includes a first support plate fixedly connected to the upper side of the base, a first guide groove is arranged inside the first support plate, a plurality of first guide grooves are arranged inside the first support plate, a first guide rod is arranged on the inner side of the first guide groove, a third hole is arranged inside the base, a first slider is vertically slidably connected inside the third hole, a fourth hole is arranged inside the first slider, the second sampling tube is nested on the inner side of the fourth hole, one end of the first guide rod is fixedly connected to a connecting plate, a fifth hole is arranged on the inner side of the connecting plate, a second groove is connected on the inner wall of the fifth hole, and a rotating ring fixedly connected to the second sampling tube is nested inside the second groove.

[0012] Preferably, the outer structure of the upper end of the first guide groove is a vertical straight line, and the outer structure of the lower end of the first guide groove is an inclined straight line, and the upper end of the first guide groove is closer to the first sampling tube than the lower end of the first guide groove.

[0013] Preferably, the first guide grooves are equidistantly distributed inside the first support plate, and the horizontal height of the first guide groove close to one end of the hydraulic cylinder is lower than the horizontal height of the first guide groove far from one end of the hydraulic cylinder.

[0014] Preferably, the rotating mechanism includes a second support plate which is arranged on a side of the first support plate away from the hydraulic cylinder and fixedly connected to the base, a second slide groove is arranged on the inner side of the second support plate, a second slider is arranged on the inner side of the second slide groove, one end of the second slider is fixedly connected to a push rod, one end of the push rod is fixedly connected to a rubber top plate, the rubber top plate is nested on the inner side of the second sampling tube, a second guide groove is opened on the outer wall of one end of the second sampling tube close to the hydraulic cylinder, and a second guide rod fixedly connected to the slider is arranged on the inner side of the second guide groove.

[0015] Preferably, the inner side surface of the second sliding groove fits the outer side surface of the second sliding block, and the width of the second sliding block at one end close to the hydraulic cylinder is smaller than the width of the second sliding block at one end away from the hydraulic cylinder.

[0016] Preferably, the appearance structure of the second guide groove is spiral, and the second guide groove and the second guide rod are matched in a clearance fit.

[0017] Preferably, the central axis of the second slide groove along the height direction is parallel to the central axis of the first sampling cylinder, and the height of the second slide groove is greater than the height of the third hole.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The present invention provides a sampling device for geological environment monitoring. By setting a pulling mechanism, when the first sampling tube moves upward, the pulling mechanism is driven to move upward, thereby driving the second sampling tube to enter the inner side of the first sampling tube for sampling. Compared with the prior art, since the sample does not need to be poured out of the first sampling tube, but is directly sampled, its stratification is more stable, thereby making the sampling more accurate.

[0020] 2. The present invention provides a sampling device for geological environment monitoring. Through the rotating mechanism, when the pulling mechanism moves up and down, the rotating mechanism is driven to rotate, so that the sample inside the second sampling tube can be pushed out more thoroughly, thereby reducing pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the front cross-sectional structure of the base of the present invention;

[0023] Figure 3 It is a schematic diagram of the left-side cross-sectional structure of the first pull plate of the present invention;

[0024] Figure 4 It is a front view structural schematic diagram of the first guide groove of the present invention;

[0025] Figure 5 It is a schematic diagram of the right side cross-sectional structure of the rotating ring of the present invention;

[0026] Figure 6 For the present invention Figure 2 Schematic diagram of the structure at A in the middle;

[0027] Figure 7 For the present invention Figure 2 Schematic diagram of the structure at B in the middle;

[0028] Figure 8 For the present invention Figure 2 Schematic diagram of the structure at C in the middle;

[0029] Fig. 9 It is a schematic diagram of the appearance structure of the connecting plate of the present invention.

[0030] In the figure: 1, base; 2, hydraulic cylinder; 3, hydraulic rod; 6, first sampling tube; 4, pulling mechanism; 41, sliding assembly; 4101, first connecting rod; 4102, first pull plate; 4103, first groove; 4104, first hole; 4105, second pull plate; 4106, pull rod; 4107, sampling hole; 4108, second hole; 4109, second sampling tube; 4110, detachable material dish; 4111, first slide groove; 4112, third slide block; 4113, spring; 42, guide Toward component; 4201, first support plate; 4202, first guide groove; 4203, first guide rod; 4204, third hole; 4205, first slider; 4206, fourth hole; 4207, connecting plate; 4208, fifth hole; 4209, second groove; 4210, rotating ring; 5, rotating mechanism; 501, second support plate; 502, second slide groove; 503, second slider; 504, push rod; 505, rubber top plate; 506, second guide groove; 507, second guide rod. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] See also Figure 1-Figure 9 The present invention provides a technical solution: a sampling device for geological environment monitoring, comprising a base 1, a hydraulic cylinder 2 fixedly connected to the middle upper part of the base 1, a hydraulic rod 3 fixedly connected to the output end of the hydraulic cylinder 2, a first sampling tube 6 fixedly connected to the lower end of the hydraulic rod 3, a pulling mechanism 4 fixedly connected to the outer side of the hydraulic rod 3, and a rotating mechanism 5 is arranged on the inner side of the pulling mechanism 4;

[0033] The pulling mechanism 4 includes a sliding component 41 and a guide component 42, and the guide component 42 is arranged on one side of the sliding component 41;

[0034] The sliding assembly 41 includes a first connecting rod 4101 arranged on the outside of the hydraulic rod 3, a first pull plate 4102 is arranged below the first connecting rod 4101, first grooves 4103 are arranged inside the two sides of the first pull plate 4102, the top of the first groove 4103 is connected to the first hole 4104, a second pull plate 4105 is arranged inside the first groove 4103, a pull rod 4106 is fixedly connected to the upper end of the second pull plate 4105, and the uppermost pull rod 4106 is connected to the first connecting rod 4101. The connection mode of the connecting rod 4101 is fixed connection, and the connection mode of the remaining pull rods 4106 and the corresponding first pull plate 4102 above is fixed connection. The first sampling cylinder 6 is provided with sampling holes 4107 on the side close to the first connecting rod 4101. The sampling holes 4107 are evenly distributed inside the first sampling cylinder 6, and the number of the pull rods 4106 is consistent with the number of the sampling holes 4107, so that the corresponding second sampling cylinder 4109 can enter the interior of the sampling holes 4107. A second hole 4108 is provided in the middle of the plate 4102, and a second sampling tube 4109 is provided inside the second hole 4108. The central axis of the second sampling tube 4109 is perpendicular to the central axis of the first sampling tube 6. The width of the first groove 4103 is greater than the width of the first hole 4104, and the inner side of the first hole 4104 is in contact with the outer side of the pull rod 4106, and the central axis of the pull rod 4106 is perpendicular to the lower surface of the base 1, so that the pull rod 4106 can be It moves on the inner side of the first hole 4104, but the pull rod 4106 will not move out of the inner side of the first hole 4104, a detachable material discharge dish 4110 is provided on the side of the first pull plate 4102 close to the first sampling tube 6, a first slide groove 4111 is provided inside the hydraulic rod 3, a third slider 4112 fixedly connected to the first connecting rod 4101 is provided inside the first slide groove 4111, and a spring 4113 fixedly connected to the hydraulic rod 3 is fixedly connected below the third slider 4112.

[0035] The guide assembly 42 includes a first support plate 4201 fixedly connected to the upper side of the base 1, and a first guide groove 4202 is arranged inside the first support plate 4201. The first guide grooves 4202 are equidistantly distributed inside the first support plate 4201, and the horizontal height of the first guide groove 4202 close to the end of the hydraulic cylinder 2 is lower than the horizontal height of the first guide groove 4202 far from the end of the hydraulic cylinder 2. A plurality of first guide grooves 4202 are arranged inside the first support plate 4201, and a first guide rod 4203 is arranged on the inner side of the first guide groove 4202. The outer side structure of the upper end of the first guide groove 4202 is a vertical straight line, and the outer appearance structure of the lower end of the first guide groove 4202 is an inclined straight line, and the upper end of the first guide groove 4202 is closer to the first sampling tube 6 than the lower end of the first guide groove 4202, so that the first A guide rod 4203 will move left and right when moving on the inner side below the first guide groove 4202, and will not move left and right when moving on the inner side above the first guide groove 4202. A third hole 4204 is provided inside the base 1, and a first slider 4205 is vertically slidably connected inside the third hole 4204. A fourth hole 4206 is provided inside the first slider 4205, and the second sampling tube 4109 is nested inside the fourth hole 4206. A connecting plate 4207 is fixedly connected to one end of the first guide rod 4203, and a fifth hole 4208 is provided on the inner side of the connecting plate 4207. The inner wall of the fifth hole 4208 is connected to a second groove 4209, and a rotating ring 4210 fixedly connected to the second sampling tube 4109 is nested inside the second groove 4209.

[0036] The rotating mechanism 5 includes a second support plate 501 which is arranged on the side of the first support plate 4201 away from the hydraulic cylinder 2 and is fixedly connected to the base 1, a second slide groove 502 is arranged on the inner side of the second support plate 501, a second slider 503 is arranged on the inner side of the second slide groove 502, one end of the second slider 503 is fixedly connected to a push rod 504, one end of the push rod 504 is fixedly connected to a rubber top plate 505, the rubber top plate 505 is nested on the inner side of the second sampling cylinder 4109, a second guide groove 506 is opened on the outer wall of the end of the second sampling cylinder 4109 close to the hydraulic cylinder 2, a second guide rod 507 fixedly connected to the first slider 4205 is arranged on the inner side of the second guide groove 506, the inner side surface of the second slide groove 502 is in contact with the outer side surface of the second slider 503, and the second slider 503 is close to the hydraulic cylinder 2, the width of one end is smaller than the width of the second slider 503 away from the hydraulic cylinder 2, so that the second slider 503 will not shake when moving inside the second slide groove 502 and the second slider 503 will not move out of the second slide groove 502. The appearance structure of the second guide groove 506 is spiral, and the second guide groove 506 and the second guide rod 507 are matched in a clearance fit, so that when the second guide groove 506 moves, it will be pushed by the second guide rod 507 to drive the second sampling tube 4109 to rotate. The central axis of the second slide groove 502 along the height direction is parallel to the central axis of the first sampling tube 6, and the height of the second slide groove 502 is greater than the height of the third hole 4204, so that the second slider 503 can move up and down inside the second slide groove 502.

[0037] The device is placed above the ground of the geological environment to be sampled, the base 1 is placed stably on the ground, the hydraulic cylinder 2 is in a retracted state, the hydraulic rod 3 is not extended, the first sampling tube 6 is located close to the ground but not in contact with the ground, in the pulling mechanism 4, the first connecting rod 4101 is fixed to the outside of the hydraulic rod 3, the first pulling plate 4102 is connected to the first connecting rod 4101 through the pulling rod 4106, the second pulling plate 4105 is located in the first groove 4103 of the first pulling plate 4102, the second sampling tube 4109 is placed in the second hole 4108, and the disassembly dish 4 110 is not installed, in the guide assembly 42, the first guide rod 4203 is located in the first guide groove 4202, the first slider 4205 is in the third hole 4204, the rotating ring 4210 is connected to the second sampling tube 4109 and is located in the second groove 4209 of the connecting plate 4207, in the rotating mechanism 5, the second slider 503 is located in the second slide groove 502, one end of the top rod 504 is connected to the second slider 503, and the rubber top plate 505 at the other end is nested on the inner side of the second sampling tube 4109, and the second guide rod 507 is located in the second guide groove 506.

[0038] When the hydraulic cylinder 2 is started, the hydraulic cylinder 2 extends and pushes the hydraulic rod 3 to move downward. Since a first slide groove 4111 is provided inside the hydraulic rod 3, a third slider 4112 is provided on the inner side of the first slide groove 4111, and a spring 4113 fixedly connected to the hydraulic rod 3 is fixedly connected above the third slider 4112. When the first sampling tube 6 is pressed downward, the first pull plate 4102 is completely contracted, and the first pull plate 4102 can no longer move downward, the spring 4113 is compressed by force, and the first pull plate 4102 can slide relative to the hydraulic rod 3 to prevent the first pull plate 4102 from being pressed down to below the ground with the first sampling tube 6 and breaking the second sampling tube 4109. When the first sampling tube 6 moves upward, the spring 4113 restores its deformation and drives the first pull plate 4102 to move upward with the hydraulic rod 3, thereby driving the first sampling tube 6 to be pressed vertically downward and inserted into the soil. As the first sampling tube 6 gradually penetrates into the soil, the soil enters the first sampling tube 6 to complete the preliminary sampling.

[0039] When the soil in the sampling tube is directly poured out, due to the lack of effective stratification and isolation measures, the soil layers are easily mixed. It is necessary to reduce mixing and improve sampling accuracy. The specific operations are as follows:

[0040] The hydraulic cylinder 2 is started to drive the hydraulic rod 3 and the first sampling tube 6 to move upward, and the first connecting rod 4101, the second pull plate 4105 and the pull rod 4106 to move upward. Because the width of the first groove 4103 is greater than the width of the first hole 4104, and the inner side of the first hole 4104 is in contact with the outer side of the pull rod 4106, and the central axis of the pull rod 4106 is perpendicular to the lower surface of the base 1, the second pull plate 4105 cannot be separated from the first groove 4103, thereby driving the second connecting rod 4101, the second pull plate 4105 and the pull rod 4106 to move upward. The first pull plate 4102 moves upward, driving the second sampling tube 4109 in the second hole 4108 to move upward, driving the rotating ring 4210 and the connecting plate 4207 to move upward, and driving the first guide rod 4203 fixedly connected to the connecting plate 4207 to move upward. Since the upper end outer structure of the first guide groove 4202 is a vertical straight line, and the lower end appearance structure of the first guide groove 4202 is an inclined straight line, the first guide grooves 4202 are equidistantly distributed on the first support plate 420 1, and the length of the lower end of the first guide groove 4202 close to one end of the hydraulic cylinder 2 is greater than the length of the lower end of the first guide groove 4202 far from the end of the hydraulic cylinder 2, and the length of the upper end of the first guide groove 4202 close to one end of the hydraulic cylinder 2 is less than the length of the upper end of the first guide groove 4202 far from the end of the hydraulic cylinder 2, so that the uppermost first guide rod 4203 first moves upward along the oblique side of the lower end of the first guide groove 4202, driving the second sampling cylinder 4109 to move in the direction of the first sampling cylinder 6, and move to the inside of the sampling hole 4107, and will continue to move upward, the second sampling cylinder 4109 continues to sample the soil in the first sampling cylinder 6 through the sampling hole 4107, and similarly, the second sampling cylinder 4109 below will also be pulled upward by the corresponding second pull plate 4105 and pull rod 4106 to move, because the first sampling cylinder 6 is sampled successively, because the sample does not need to be poured out of the first sampling cylinder 6 for direct sampling, its stratification is relatively stable, making the sampling standard more accurate.

[0041] After the second sampling tube 4109 is fully inserted into the inner side of the first sampling tube 6, the sample needs to be taken out from the inside of the second sampling tube 4109. At this time, the detachable material placing dish 4110 is hung on the side of the first pull plate 4102 close to the first sampling tube 6, and the hydraulic cylinder 2 is started on the spot to move downward to drive the first sampling tube 6, and the downward movement drives the first connecting rod 4101 to move downward. Because the first pull plate 4102, the second pull plate 4105, the second sampling tube 4109 and the first guide rod 4203 move downward under the action of gravity, the second sampling tube 4109 at the bottom and its corresponding first guide rod 4203 are moved downward. The rod 4203 moves downward and first contacts the lower end of the corresponding first guide groove 4202. Under the action of gravity, the first guide rod 4203 and the second sampling cylinder 4109 move to the side away from the first sampling cylinder 6. At this time, the positions of the ejector rod 504 and the rubber top plate 505 remain unchanged, so that the sample inside the second sampling cylinder 4109 is ejected and falls to the inside of the corresponding detachable dish 4110. At this time, the hydraulic cylinder 2 is stopped to disassemble the detachable dish 4110 for sampling. The operation is repeated to complete the sampling process. Finally, the entire device is cleaned for the next sampling.

[0042] When the second sampling tube 4109 moves toward the first sampling tube 6, it will drive the second guide groove 506 to move laterally. Because the second guide rod 507 is nested on the inner side of the second guide groove 506, the appearance structure of the second guide groove 506 is spiral, and the second guide groove 506 and the second guide rod 507 are matched in a clearance fit, and the second guide rod 507 will not move laterally, so that the second guide rod 507 pushes the edge of the second guide groove 506 to drive the second sampling tube 4109 to rotate and insert into the inner side of the first sampling tube 6 for sampling. When rotating and inserting, the movement mode of soil particles changes and they will move in a circular direction. For example, in uniform sandy soil, soil particles will roll around the circumference of the rotating sampling tube and rearrange themselves. Regular movement in the horizontal direction avoids direct damage to the vertical layered structure by concentrated squeezing force in the vertical direction. From the stress perspective, when inserted vertically, the stress is concentrated on the front end and edge of the sampling tube. Due to the pressure on the front end and the friction on the edge, the local soil structure is easily seriously damaged, just like a sharp object hitting a material with uniform texture, and the structure near the force point is seriously damaged; when inserted in rotation, the sampling tube is regarded as a cylinder, and the friction and squeezing force generated by the soil particles and the side of the cylinder are evenly distributed in the circumferential direction due to the rotation. According to the principles of material mechanics, the evenly distributed force can reduce the local stress peak, reduce the damage to the soil structure, reduce the horizontal downward movement of the sample inside the first sampling tube 6, reduce the sample from falling or moving downward, and thus improve the accuracy of the sampling data.

[0043] Similarly, when the second sampling cylinder 4109 moves away from the first sampling cylinder 6, the second sampling cylinder 4109 will still rotate. When sampling, there may be hard objects inside the sample that will scratch the inner wall of the second sampling cylinder 4109 and leave a gap, causing subsequent materials to remain inside the gap. At this time, the second sampling cylinder 4109 rotates to discharge the material, so that the rubber top plate 505 can better push the material inside the gap, thereby reducing pollution and improving the accuracy of the sampling data.

[0044] When the second sampling tube 4109 enters the inner side of the first sampling tube 6, the insertion order is from top to bottom. By inserting the small sampling tubes in the order from top to bottom, each operation is limited to the current upper soil layer, and unnecessary disturbance will not be caused to the lower soil layer too early. This allows the disturbance range to be accurately controlled. As the small sampling tubes are inserted downward in sequence, each new operation is performed in a relatively stable environment. For example, when studying a soil sample with complex stratification, the thickness and properties of each layer of soil vary greatly. If the small sampling tubes are inserted one by one from the upper layer, sampling operations are performed on only that layer of soil each time. The lower soil layer will not be disturbed prematurely, causing its structure to be damaged, thereby causing the upper soil layer to fall off. This operation sequence can minimize the risk of overall soil falling off due to improper operation.

[0045] When the second sampling cylinder 4109 is inserted, it is inserted immediately when the first sampling cylinder 6 is moving upward. This is because as time goes by, the possibility of the material inside the first sampling cylinder 6 moving downward is increasing. Inserting the second sampling cylinder 4109 into the inner side of the first sampling cylinder 6 as early as possible reduces the possibility of the sample falling or moving downward, thereby improving the accuracy of the sampling data.

[0046] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0047] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sampling device for geological environment monitoring, comprising a base (1), a hydraulic cylinder (2) fixedly connected to the middle upper part of the base (1), a hydraulic rod (3) fixedly connected to the output end of the hydraulic cylinder (2), and a first sampling tube (6) fixedly connected to the lower end of the hydraulic rod (3), characterized in that: The outer side of the hydraulic rod (3) is fixedly connected to a pulling mechanism (4), and the inner side of the pulling mechanism (4) is provided with a rotating mechanism (5); The pulling mechanism (4) comprises a sliding component (41) and a guide component (42), wherein the guide component (42) is arranged on one side of the sliding component (41); The sliding assembly (41) includes a first connecting rod (4101) arranged on the outside of the hydraulic rod (3), a first pull plate (4102) is arranged below the first connecting rod (4101), first grooves (4103) are arranged inside the two sides of the first pull plate (4102), the top of the first groove (4103) is connected to a first hole (4104), a second pull plate (4105) is arranged inside the first groove (4103), and a pull rod (4106) is fixedly connected to the upper end of the second pull plate (4105), the uppermost pull rod (4106) is connected to the first connecting rod (4101) in a fixed manner, and the remaining pull rods (4106) are connected to the corresponding first pull plate (4102) in a fixed manner, and the first sampling tube (6) is close to the first sampling tube (6). A sampling hole (4107) is provided on one side near the first connecting rod (4101), a second hole (4108) is provided in the middle of the first pull plate (4102), a second sampling tube (4109) is provided on the inner side of the second hole (4108), the central axis of the second sampling tube (4109) is perpendicular to the central axis of the first sampling tube (6), a detachable material discharge dish (4110) is provided on one side of the first pull plate (4102) near the first sampling tube (6), a first slide groove (4111) is provided inside the hydraulic rod (3), a third slider (4112) fixedly connected to the first connecting rod (4101) is provided inside the first slide groove (4111), and a spring (4113) fixedly connected to the hydraulic rod (3) is fixedly connected below the third slider (4112).

2. A sampling device for geological environment monitoring according to claim 1, characterized in that: The sampling holes (4107) are evenly distributed inside the first sampling cylinder (6), and the number of the pull rods (4106) is consistent with the number of the sampling holes (4107).

3. A sampling device for geological environment monitoring according to claim 1, characterized in that: The width of the first groove (4103) is greater than the width of the first hole (4104), and the inner side surface of the first hole (4104) fits the outer side surface of the pull rod (4106), and the central axis of the pull rod (4106) is perpendicular to the lower surface of the base (1).

4. A sampling device for geological environment monitoring according to claim 1, characterized in that: The guide assembly (42) comprises a first support plate (4201) fixedly connected to one side of the base (1), a first guide groove (4202) is arranged inside the first support plate (4201), a plurality of first guide grooves (4202) are arranged inside the first support plate (4201), a first guide rod (4203) is arranged inside the first guide groove (4202), a third hole (4204) is arranged inside the base (1), and a first slider (4205) is vertically slidably connected inside the third hole (4204), A fourth hole (4206) is provided inside the first sliding block (4205), and the second sampling tube (4109) is nested inside the fourth hole (4206). One end of the first guide rod (4203) is fixedly connected to a connecting plate (4207), and a fifth hole (4208) is provided on the inner side of the connecting plate (4207). The inner wall of the fifth hole (4208) is connected to a second groove (4209), and a rotating ring (4210) fixedly connected to the second sampling tube (4109) is nested inside the second groove (4209).

5. A sampling device for geological environment monitoring according to claim 4, characterized in that: The outer structure of the upper end of the first guide groove (4202) is a vertical straight line, and the outer structure of the lower end of the first guide groove (4202) is an inclined straight line, and the upper end of the first guide groove (4202) is closer to the first sampling tube (6) than the lower end of the first guide groove (4202).

6. A sampling device for geological environment monitoring according to claim 4, characterized in that: The first guide grooves (4202) are equidistantly distributed inside the first support plate (4201), and the horizontal height of the first guide groove (4202) close to one end of the hydraulic cylinder (2) is lower than the horizontal height of the first guide groove (4202) far from one end of the hydraulic cylinder (2).

7. A sampling device for geological environment monitoring according to claim 1, characterized in that: The rotating mechanism (5) comprises a second support plate (501) which is arranged on a side of the first support plate (4201) away from the hydraulic cylinder (2) and is fixedly connected to the base (1); a second slide groove (502) is arranged on the inner side of the second support plate (501); a second slider (503) is arranged on the inner side of the second slide groove (502); one end of the second slider (503) is fixedly connected to a push rod (504); one end of the push rod (504) is fixedly connected to a rubber top plate (505); the rubber top plate (505) is nested on the inner side of a second sampling tube (4109); a second guide groove (506) is provided on the outer wall of one end of the second sampling tube (4109) close to the hydraulic cylinder (2); a second guide rod (507) fixedly connected to the slider (4205) is arranged on the inner side of the second guide groove (506).

8. A sampling device for geological environment monitoring according to claim 7, characterized in that: The inner side surface of the second slide groove (502) fits the outer side surface of the second slider (503), and the width of the second slider (503) at one end close to the hydraulic cylinder (2) is smaller than the width of the second slider (503) at one end away from the hydraulic cylinder (2).

9. A sampling device for geological environment monitoring according to claim 7, characterized in that: The appearance structure of the second guide groove (506) is spiral, and the matching mode between the second guide groove (506) and the second guide rod (507) is clearance matching.

10. A sampling device for geological environment monitoring according to claim 7, characterized in that: The central axis of the second slide groove (502) along the height direction is parallel to the central axis of the first sampling tube (6), and the height of the second slide groove (502) is greater than the height of the third hole (4204).

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