Underground engineering sampling device

Abstract

The invention provides an underground engineering sampling device, which relates to the technical field of underground engineering sampling and comprises a supporting mechanism, a sampling mechanism, an intermittent dust falling mechanism and a reciprocating cleaning mechanism. The soil sampling device has the beneficial effects that when soil is sampled, the motor drives the lead screw mechanism to drive the soil sampling barrel to move downwards to be inserted into the soil, and meanwhile, a sliding block of the lead screw mechanism drives a driving gear to rotate along a transmission toothed plate so as to drive a gear mechanism to drive an auger blade to rotate to convey out the soil in the soil sampling barrel; meanwhile, a driving gear rotates to drive an intermittent toothed plate to intermittently move downwards, so that a water blocking plate intermittently slides downwards, and a liquid inlet hole in the upper end of the water blocking plate intermittently enters a water tank, so that the water tank intermittently supplies water to a water spraying assembly, water is sprayed to the periphery of a soil sampling barrel through the water spraying assembly, and dust generated in the sampling process is adsorbed in time; the dust concentration in the working environment is effectively reduced, the quality of the working environment is improved, the health of workers is protected, and the risk of respiratory system diseases is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of underground engineering sampling, and in particular to an underground engineering sampling device. Background Art

[0002] Underground engineering plays an important role in urban construction, mining development, environmental protection and other fields. Accurate underground sampling is essential for evaluating the properties of soil, rock and groundwater. In the process of underground soil sampling, soil sampling devices are usually required. Soil sampling devices can quickly and effectively obtain soil samples from different depths and locations to ensure the representativeness of the samples. However, in the existing soil sampling device, the dust generated during the sampling process will float in the air, thereby increasing the dust concentration in the working environment, which poses a threat to the health of the workers and increases the risk of respiratory diseases. In addition, the existing device also has shortcomings in cleaning and maintenance. Due to the lack of an effective cleaning mechanism, the soil sampling barrel is prone to accumulate dirt after use, which increases the workload of the workers in the process of cleaning the soil sampling barrel. Summary of the invention

[0003] In view of this, in order to solve the problem that dust generated during the sampling process of the existing soil sampling device will float in the air, an embodiment of the present invention provides an underground engineering sampling device.

[0004] An embodiment of the present invention provides an underground engineering sampling device, comprising: Support mechanism; A sampling mechanism is arranged on the supporting mechanism, the sampling mechanism comprises a motor, a soil sampling barrel, an auger blade, a screw mechanism, a transmission tooth plate and a gear mechanism, wherein the screw mechanism comprises a screw rod and a slider, the motor is connected to the screw rod, the slider is connected to the soil sampling barrel, the auger blade is rotatably arranged in the soil sampling barrel, a rotatable first rotating shaft is arranged on the slider, one end of the first rotating shaft is connected to the driving gear, and the other end is connected to the gear mechanism, the gear mechanism is connected to the auger blade, the transmission tooth plate is fixedly arranged on one side of the screw rod, the driving gear is meshed with the transmission tooth plate, the slider moves along the screw rod to drive the soil sampling barrel to rise and fall, and drives the driving gear to rotate along the transmission tooth plate, so as to drive the gear mechanism to drive the auger blade to rotate through the first rotating shaft; and an intermittent dust reduction mechanism, which comprises a water tank, a water blocking plate, an intermittent tooth plate, a guide slide plate and a water spray assembly, the water blocking plate can be slidably mounted on the guide slide plate, the guide slide plate is fixedly arranged on the other side of the screw rod, the intermittent tooth plate is arranged on one side of the water blocking plate, the intermittent tooth plate can intermittently mesh with the driving gear, the water tank is fixedly arranged above the water blocking plate, and the upper end of the water blocking plate can slidably extend into the water tank, the upper end of the water blocking plate is provided with a liquid inlet hole and a flow channel inside, the lower end of the water blocking plate is connected to the water spray assembly, the guide slide plate is provided with a constraint groove, the side of the water blocking plate is provided with a movable block, the movable block can be slidably arranged in the constraint groove, and an elastic member is arranged in the constraint groove, the elastic member is connected to the movable block, and the rotation of the driving gear can also drive the intermittent tooth plate to intermittently move downward, so that the water blocking plate intermittently slides downward, and the liquid inlet hole intermittently enters the water tank, so that the water tank intermittently supplies water to the water spray assembly.

[0005] Furthermore, the water spray assembly includes an extrusion box, an extrusion plate, a one-way valve and a spray pipe. The extrusion plate is hollow inside, and the lower end of the water blocking plate is connected to the extrusion plate through the one-way valve, so that the water blocking plate can flow one-way between the extrusion plates. The extrusion plate can be slidably inserted into the extrusion box, and the bottom of the extrusion box is connected to the spray pipe.

[0006] Furthermore, the spray pipe is arranged around the soil collecting barrel, and a plurality of liquid outlet nozzles arranged at intervals are provided on the spray pipe.

[0007] Furthermore, the lower end of the extrusion plate is connected to a sealing frame, and an edge of the sealing frame is in contact with an inner wall of the extrusion box.

[0008] Furthermore, it also includes a reciprocating cleaning mechanism, which includes a connecting frame and a cleaning cylinder, the connecting frame is connected to the intermittent tooth plate, the cleaning cylinder is connected to the connecting frame and is located at the periphery of the soil taking cylinder, and the inner wall of the cleaning cylinder is provided with a cleaning pad.

[0009] Furthermore, the reciprocating cleaning mechanism also includes an infusion tube and a shower tube, one end of the infusion tube is connected to the water blocking plate, and the other end is connected to the shower tube, the shower tube is arranged on the cleaning cylinder and has a plurality of liquid outlet heads for spraying water onto the cleaning pad.

[0010] Furthermore, the motor is connected to a first gear, the upper end of the lead screw is connected to an intermediate gear, and the first gear is meshed with the intermediate gear.

[0011] Further, the gear mechanism includes a first bevel gear, a second bevel gear and a gear group, the first rotating shaft is horizontally arranged and one end is connected to the first bevel gear, the second bevel gear is installed on the second rotating shaft, the second rotating shaft is vertically arranged and rotatably installed on the slider, the second bevel gear is meshed with the first bevel gear, and the gear group connects the second rotating shaft and the auger blade.

[0012] Furthermore, the support mechanism includes a base, a support top plate, a plurality of support rods and a plurality of support legs, each of the support legs is arranged at the bottom of the base, the support top plate is arranged above the base, each of the support rods is arranged between the support top plate and the base, the soil taking barrel can pass through the base, and the transmission tooth plate and the guide slide plate are fixedly installed on the base.

[0013] Furthermore, the base is provided with a plurality of limit plates extending vertically upward, the outer wall of the soil-extracting barrel is provided with a plurality of limit grooves, and each of the limit plates is embedded in a limit groove, so that the soil-extracting barrel can slide along each of the limit plates.

[0014] The beneficial effects brought about by the technical solution provided by the embodiment of the present invention are: 1. An underground engineering sampling device of the present invention, when sampling soil, drives the soil sampling barrel downward to be inserted into the soil through the motor-driven lead screw mechanism, and at the same time, the slider of the lead screw mechanism drives the driving gear to rotate along the transmission tooth plate, so as to drive the gear mechanism to drive the auger blade to rotate and transport the soil in the soil sampling barrel out; at the same time, the driving gear rotates to drive the intermittent tooth plate to intermittently move downward, so that the water blocking plate intermittently slides downward, and the liquid inlet hole on the upper end of the water blocking plate intermittently enters the water tank, so that the water tank intermittently supplies water to the water spraying assembly, and water is sprayed around the soil sampling barrel through the water spraying assembly to timely absorb dust generated during the sampling process, effectively reducing the dust concentration in the working environment, improving the quality of the working environment, protecting the health of the staff, and reducing the risk of respiratory diseases.

[0015] 2. In an underground engineering sampling device of the present invention, during the soil sampling process, the intermittent tooth plate of the driving gear intermittently moves downward. At the same time, under the action of the restoring force of the elastic member, the intermittent tooth plate intermittently rises and falls, thereby driving the cleaning cylinder to reciprocate up and down, so that the cleaning pad in the cleaning cylinder reciprocates up and down on the outer wall of the soil sampling cylinder, thereby effectively improving the cleanliness of the soil sampling cylinder and bringing convenience to the staff's subsequent cleaning work.

[0016] 3. The underground engineering sampling device of the present invention can drive the sampling mechanism, intermittent dust reduction mechanism and reciprocating cleaning mechanism to work simultaneously only by a single motor, which simplifies the circuit and reduces the use of the driving mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1It is a first schematic diagram of an underground engineering sampling device of the present invention; Figure 2 is a second schematic diagram of an underground engineering sampling device of the present invention; Figure 3 is a schematic diagram of the support mechanism; Figure 4 It is a partial schematic diagram of an underground engineering sampling device of the present invention; Figure 5 is a schematic diagram of the sampling mechanism; Figure 6 is a cross-sectional view of the sampling mechanism; Figure 7 It is a schematic diagram of the intermittent dust suppression mechanism and the reciprocating cleaning mechanism; Figure 8 It is a cross-sectional view of the intermittent dust suppression mechanism; Fig. 9 yes Figure 8 A partial enlarged view of the middle A; Fig.10 It is a schematic diagram of the intermittent dust suppression mechanism; Fig.11 It is a schematic diagram of the reciprocating cleaning mechanism.

[0018] In the figure: 1, support mechanism; 101, base; 102, support top plate; 103, support leg; 104, support rod; 2, sampling mechanism; 201, motor; 202, screw rod; 203, slider; 204, soil sampling tube; 205, driving gear; 206, auger blade; 207, transmission gear plate; 208, first gear; 209, intermediate gear; 210, first rotating shaft; 211, first bevel gear; 212, second bevel gear; 213, second rotating shaft; 214, second gear; 215, third gear; 216, fourth gear; 217, third rotating shaft; 218, fifth gear; 219, limit groove; 220, limit plate; 3, intermittent dust suppression mechanism; 301, water tank; 302, water blocking plate; 303, guide slide plate; 304, intermittent tooth plate; 305, duckbill connecting pipe; 306, extrusion box; 307, extrusion plate; 308, one-way valve; 309, spray pipe; 310, flow channel; 311, liquid inlet; 312, sealing frame; 313, movable block; 314, elastic member; 315, constraint groove; 4, reciprocating cleaning mechanism; 401, infusion tube; 402, connecting frame; 403, cleaning cylinder; 404, cleaning pad; 405, spray pipe; 406, liquid outlet head; 407, control valve; 408, reciprocating ring frame. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the present invention clearer, the following will further describe the embodiments of the present invention in conjunction with the accompanying drawings. The following is a preferred embodiment of the present invention, which is intended to provide a basic understanding of the present invention, but is not intended to confirm the key or decisive elements of the present invention or to limit the scope of protection.

[0020] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0021] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0022] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in the subsequent drawings. At the same time, it should be understood that for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship.

[0023] It should be noted that, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] Please refer to Figure 1 , 2 4. An embodiment of the present invention provides an underground engineering sampling device, which is used for underground soil sampling and mainly includes a supporting mechanism 1, a sampling mechanism 2 and an intermittent dust reduction mechanism 3.

[0025] The supporting mechanism 1 mainly supports and fixes other components, and can be flexibly configured according to actual application scenarios. Figure 3As in this embodiment, the support mechanism 1 includes a base 101, a support top plate 102, a plurality of support rods 104 and a plurality of support legs 103. Each of the support legs 103 is arranged at the bottom of the base 101, and the number of the support legs 103 is set to four. The upper end of the support leg 103 is fixedly connected to the edge of the bottom of the base 101. The four support legs 103 are evenly spaced around the edge of the base 101 and can be stably supported on the ground. The support top plate 102 is arranged above the base 101, and the support top plate 102 and the base 101 are both arranged horizontally. The number of the support rods 104 is set to three, and each of the support rods 104 is arranged between the support top plate 102 and the base 101. The upper end of each of the support rods 104 is fixedly connected to the support top plate 102, and the lower end is fixedly connected to the base 101.

[0026] Please refer to Figure 5 and 6 The sampling mechanism 2 is arranged on the supporting mechanism 1, and the sampling mechanism 2 includes a motor 201, a soil sampling barrel 204, an auger blade 206, a screw mechanism, a transmission tooth plate 207 and a gear mechanism.

[0027] The motor 201 is generally a servo motor, and the screw mechanism is generally composed of a screw 202 and a slider 203, and the slider 203 is sleeved on the screw 202. The model specifications of the motor 201 and the screw mechanism can be selected and determined according to the actual application scenario. The screw 202 is vertically arranged and smooth at both ends. The motor 201 is installed on the support top plate 102, and the power transmission shaft of the motor 201 is vertically arranged downward and passes through the support top plate 102 to connect the upper end of the screw 202. The lower end of the screw 202 can rotatably pass through the base 101.

[0028] In some embodiments, the output shaft of the motor 201 is connected to the first gear 208, the upper end of the screw rod 202 is connected to the middle gear 209, and the first gear 208 and the middle gear 209 are meshed, so that the motor 201 drives the first gear 208 and the middle gear 209 to drive the screw rod 202 to rotate, thereby driving the slider 203 to move vertically along the screw rod 202.

[0029] The slider 203 is connected to the soil collecting barrel 204. Specifically, the soil collecting barrel 204 is vertically arranged on one side of the screw rod 202, and one side of the slider 203 is fixedly connected to the soil collecting barrel 204. The base 101 is provided with a through hole aligned with the lower end of the soil collecting barrel 204. The sliding vertical motion can drive the soil collecting barrel 204 to rise and fall, and when the soil collecting barrel 204 descends, the lower end can pass through the through hole and be inserted into the soil to be sampled.

[0030] In some embodiments, the base 101 is provided with a plurality of limit plates 220 extending vertically upward, and the outer wall of the soil collecting barrel 204 is provided with a plurality of limit grooves 219, each of the limit plates 220 is embedded in a limit groove 219, and the limit plates 220 are evenly spaced around the periphery of the soil collecting barrel 204, so as to limit the soil collecting barrel 204, so that the soil collecting barrel 204 can only slide along the limit plates 220, even if the soil collecting barrel 204 can only move in the vertical direction.

[0031] The auger blade 206 is rotatably arranged in the soil taking barrel 204. The slider 203 is provided with a rotatable first rotating shaft 210, and the first rotating shaft 210 passes through the slider 203. One end of the first rotating shaft 210 is connected to the driving gear 205, and the other end is connected to the gear mechanism. The gear mechanism is connected to the auger blade 206. The transmission tooth plate 207 is vertically arranged and the lower end is fixedly installed on the base 101. The transmission tooth plate 207 is located on one side of the screw rod 202, and the driving gear 205 is meshed with the transmission tooth plate 207. The vertical movement of the slider 203 can drive the driving gear 205 to roll along the transmission tooth plate 207, so that the first rotating shaft 210 rotates, so as to drive the gear structure to transmit to the auger blade 206, thereby driving the auger blade 206 to rotate.

[0032] The gear mechanism can be flexibly arranged according to actual application needs. For example, in the present embodiment, the gear mechanism includes a first bevel gear 211, a second bevel gear 212 and a gear set, the first rotating shaft 210 is arranged horizontally and one end is connected to the first bevel gear 211, the second bevel gear 212 is mounted on the second rotating shaft 213, the second rotating shaft 213 is arranged vertically and rotatably mounted on the slider 203, the second bevel gear 212 is meshed with the first bevel gear 211, and the gear set connects the second rotating shaft 213 and the auger blade 206.

[0033] In some embodiments, the gear set includes a second gear 214, a third gear 215, a fourth gear 216 and a fifth gear 218, wherein the second gear 214 is mounted on the second rotating shaft 213, the third gear 215 and the fourth gear 216 are respectively mounted on both ends of the third rotating shaft 217, the third rotating shaft 217 is vertically arranged and rotatably mounted on one side of the slider 203, and the third gear 215 is meshed with the second gear 214. The fifth gear 218 is mounted on the upper end of the auger blade 206, and the fifth gear 218 is meshed with the fourth gear 216. In this way, the rotation of the second bevel gear 212 can drive the auger blade 206 to rotate through the gear set.

[0034] Please refer to Figure 7 , 8 , 9 and 10, the intermittent dust reduction mechanism 3 includes a water tank 301, a water blocking plate 302, an intermittent tooth plate 304, a guide slide plate 303 and a water spray assembly. The water tank 301 is fixed on the supporting top plate 102, the water blocking plate 302 is slidably mounted on the guide slide plate 303, the guide slide plate 303 is vertically arranged and the lower end is fixedly mounted on the base 101. The guide slide plate 303 is located on the other side of the screw rod 202, that is, on the side opposite to the transmission tooth plate 207. The intermittent tooth plate 304 is arranged on one side of the water blocking plate 302, and the intermittent tooth plate 304 is provided with a plurality of racks arranged at intervals along the vertical direction, and the intermittent tooth plate 304 can intermittently mesh with the driving gear 205.

[0035] The water tank 301 is fixedly arranged above the water blocking plate 302, and the upper end of the water blocking plate 302 can be slidably extended into the water tank 301. The upper end of the water blocking plate 302 is provided with a liquid inlet hole and a flow channel 310 is provided inside. Here, the water blocking plate 302 is a rectangular plate, and the interior is hollowed to form the flow channel 310. The contact portion between the water blocking plate 302 and the bottom of the water tank 301 is sealed. The liquid inlet hole is located on one side of the upper end of the water blocking plate 302. When the water blocking plate 302 moves up and down, the liquid inlet hole can enter or leave the water tank 301, so that intermittent water inflow can be achieved in the liquid inlet hole.

[0036] The lower end of the water blocking plate 302 is connected to the water spray assembly, a constraint groove 315 is provided on the guide slide plate 303, and a movable block 313 is provided on the side of the water blocking plate 302. The movable block 313 is slidably arranged in the constraint groove 315, and an elastic member 314 is provided in the constraint groove 315, and the elastic member 314 is connected to the movable block 313. Here, the constraint groove 315 is a rectangular groove, and the movable block 313 is a rectangular block. The movable block 313 is embedded in the constraint groove 315 and can slide vertically along the rectangular groove. The elastic member 314 is a spring, and the upper end of the spring is fixedly connected to the upper part of the constraint groove 315, and the lower end is connected to the movable block 313.

[0037] In some embodiments, a plurality of the constraint grooves 315 and the movable blocks 313 can be provided, and a plurality of the constraint grooves 315 are arranged on the guide slide plate 303 at intervals along the vertical direction, and the positions of the movable blocks 313 and the constraint grooves 315 correspond one by one, and each movable block 313 is embedded in its corresponding constraint groove 315 and connected to the constraint groove 315 through an elastic member 314.

[0038] The water spray assembly includes a squeeze box 306, a squeeze plate 307, a one-way valve 308 and a spray pipe 309. The squeeze box 306 is a rectangular parallelepiped box body, which is fixedly mounted on the base 101. The squeeze plate 307 is hollow inside, and the lower end of the water blocking plate 302 is connected to the squeeze plate 307 through the one-way valve 308, so that the water blocking plate 302 flows one-way between the squeeze plate 307. Here, the upper end of the squeeze plate 307 is connected to the one-way valve 308 through the duckbill connecting pipe 305. The lower part of the squeeze plate 307 can be slidably inserted into the squeeze box 306, and the bottom of the squeeze box 306 is connected to the spray pipe 309. The water in the water blocking plate 302 can flow into the squeeze box 306, and when the water blocking plate 302 moves downward, it can drive the squeeze plate 307 to move downward to squeeze the accumulated water in the squeeze box 306, so that the accumulated water is sprayed out from the spray pipe 309.

[0039] The spray pipe 309 is arranged around the soil collecting tube 204, and a plurality of liquid outlets are arranged at intervals on the spray pipe 309. Here, the spray pipe 309 is annular and fixed to the lower surface of the base 101, and water can be sprayed to the periphery of the soil collecting tube 204 through each liquid outlet.

[0040] In some embodiments, the lower end of the extrusion plate 307 is connected to the sealing frame 312, and the edge of the sealing frame 312 contacts the inner wall of the extrusion box 306. The middle of the sealing frame 312 is hollow, so that the water in the extrusion plate 307 can flow into the extrusion box 306. The extrusion plate 307 moves downward through the sealing frame 312 to squeeze the accumulated water in the extrusion box 306 with a larger area, which is convenient for squeezing out the accumulated water, and the upward movement of the extrusion plate 307 drives the sealing frame 312 to move upward, so that negative pressure is formed inside the extrusion box 306. The negative pressure formed at this time will accelerate the speed at which the water in the water tank 301 flows into the liquid inlet hole and the water blocking plate 302, further ensuring the stable operation of the spray dust reduction work.

[0041] In addition, please refer to Fig.11 In some embodiments, the underground engineering sampling device further includes a reciprocating cleaning mechanism 4, which includes a connecting frame 402 and a cleaning cylinder 403. The connecting frame 402 is connected to the intermittent tooth plate 304, and the middle part of the connecting frame 402 can slide through the base 101. The cleaning cylinder 403 is connected to the connecting frame 402 and is located at the periphery of the soil sampling cylinder 204. The inner wall of the cleaning cylinder 403 is provided with a cleaning pad 404. Here, the lower end of the connecting frame 402 is connected to a reciprocating ring frame 408, and the reciprocating ring frame 408 is sleeved on the outer wall of the cleaning cylinder 403 and fixedly connected to the cleaning cylinder 403. The inner wall of the cleaning cylinder 403 is provided with an annular mounting frame, and the cleaning pad 404 is mounted on the mounting frame.

[0042] In some other embodiments, the reciprocating cleaning mechanism 4 further includes an infusion tube 401 and a spraying tube 405, one end of the infusion tube 401 is connected to the water blocking plate 302, the infusion tube 401 is a corrugated tube, and a control valve 407 is provided at the upper end of the infusion tube 401, and the control valve 407 is connected to the lower part of the water blocking plate 302. The other end of the infusion tube 401 is connected to the spraying tube 405, the spraying tube 405 is arranged on the cleaning cylinder 403, and is provided with a plurality of liquid outlets 406 for spraying water to the cleaning pad 404. The spraying tube 405 is fixed to the upper end of the cleaning cylinder 403 in an annular shape, and the liquid outlet 406 faces the inner wall of the cleaning cylinder 403, and can spray water to the cleaning pad 404, thereby improving the cleaning effect of the cleaning pad 404 by increasing the wetness of the cleaning pad 404.

[0043] The process of sampling soil by an underground engineering sampling device of the present invention is as follows: The support mechanism 1 is supported on the ground at the sampling point, and the motor 201 drives the lead screw mechanism to make the slider 203 move downward along the lead screw 202, and the slider 203 drives the soil sampling barrel 204 to move downward and insert into the soil, and the soil enters the soil sampling barrel 204; at the same time, the slider 203 drives the driving gear 205 to move downward and roll along the transmission gear plate 207, and the driving gear 205 rolls and drives the first rotating shaft 210 to rotate, thereby driving the auger blade 206 to rotate through the gear mechanism, and the rotation of the auger blade 206 transports the soil in the soil sampling barrel 204 upward, and the soil in the soil sampling barrel 204 is output outward to obtain a soil sample.

[0044] When the slider 203 moves downward along the screw rod 202, the driving gear 205 meshes with the rack on the intermittent tooth plate 304, and the portion between the driving gear 205 and the rack on the intermittent tooth plate 304 cannot mesh. In this way, the driving gear 205 meshes with the rack on the intermittent tooth plate 304 to drive the intermittent tooth plate 304 to move downward, and drive the water blocking plate 302 to move downward, the liquid inlet 311 at the upper end of the water blocking plate 302 leaves the water tank 301, and stops water from entering the water blocking plate 302, the elastic member 314 is stretched, and the water blocking plate 302 drives the squeezing plate 307 to insert into the squeezing box 306, squeezing the accumulated water in the squeezing box 306 to the spray pipe 309, spraying water on the periphery of the soil sampling tube 204, and timely absorbing the dust generated during the sampling process. Then the driving gear 205 moves downward and the part between the gears on the intermittent tooth plate 304 cannot be meshed. The restoring force of the elastic member 314 causes the intermittent tooth plate 304 to move upward, driving the water blocking plate 302 to move upward. The liquid inlet 311 at the upper end of the water blocking plate 302 leaves the water tank 301, and water is again introduced into the water blocking plate 302, so that water accumulates in the squeezing box 306. Repeating the above process, the slider 203 moves downward, which can drive the intermittent tooth plate 304 to move downward intermittently, causing the water blocking plate 302 to slide downward intermittently, and the liquid inlet hole intermittently enters the water tank 301, so that the water tank 301 intermittently supplies water to the water spraying assembly, thereby spraying water on the periphery of the soil taking barrel 204 intermittently.

[0045] In addition, due to the intermittent lifting and lowering movement of the water blocking plate 302, the cleaning cylinder 403 is driven to reciprocate up and down, so that the cleaning pad 404 in the cleaning cylinder 403 reciprocates up and down on the outer wall of the soil collecting cylinder 204. The reciprocating cleaning pad 404 continuously wipes the outer wall of the soil collecting cylinder 204, thereby effectively improving the cleanliness of the outer wall of the soil collecting cylinder 204. The control valve 407 can also be opened to transfer water to the shower tube 405 through the liquid transfer tube 401, and then flow to the inner wall of the soil collecting cylinder 204 through the liquid outlet head 406, and then flow to the cleaning pad 404, thereby improving the cleaning effect of the cleaning pad 404 by increasing the wetness of the cleaning pad 404.

[0046] In this article, the directional words such as front, back, top, and bottom involved are defined by the positions of the parts in the drawings and the positions of the parts relative to each other, just for the sake of clarity and convenience in expressing the technical solution. It should be understood that they are relative concepts and can change accordingly according to different ways of use and placement, and the use of the directional words should not limit the scope of protection claimed in this application.

[0047] In the absence of conflict, the above embodiments and features in the embodiments may be combined with each other. The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An underground engineering sampling device, characterized in that: include: Support mechanism; A sampling mechanism is arranged on the supporting mechanism, the sampling mechanism comprises a motor, a soil sampling barrel, an auger blade, a screw mechanism, a transmission tooth plate and a gear mechanism, wherein the screw mechanism comprises a screw rod and a slider, the motor is connected to the screw rod, the slider is connected to the soil sampling barrel, the auger blade is rotatably arranged in the soil sampling barrel, a rotatable first rotating shaft is arranged on the slider, one end of the first rotating shaft is connected to the driving gear, and the other end is connected to the gear mechanism, the gear mechanism is connected to the auger blade, the transmission tooth plate is fixedly arranged on one side of the screw rod, the driving gear is meshed with the transmission tooth plate, the slider moves along the screw rod to drive the soil sampling barrel to rise and fall, and drives the driving gear to rotate along the transmission tooth plate, so as to drive the gear mechanism to drive the auger blade to rotate through the first rotating shaft; and an intermittent dust reduction mechanism, which comprises a water tank, a water blocking plate, an intermittent tooth plate, a guide slide plate and a water spray assembly, the water blocking plate can be slidably mounted on the guide slide plate, the guide slide plate is fixedly arranged on the other side of the screw rod, the intermittent tooth plate is arranged on one side of the water blocking plate, the intermittent tooth plate can intermittently mesh with the driving gear, the water tank is fixedly arranged above the water blocking plate, and the upper end of the water blocking plate can slidably extend into the water tank, the upper end of the water blocking plate is provided with a liquid inlet hole and a flow channel inside, the lower end of the water blocking plate is connected to the water spray assembly, the guide slide plate is provided with a constraint groove, the side of the water blocking plate is provided with a movable block, the movable block can be slidably arranged in the constraint groove, and an elastic member is arranged in the constraint groove, the elastic member is connected to the movable block, and the rotation of the driving gear can also drive the intermittent tooth plate to intermittently move downward, so that the water blocking plate intermittently slides downward, and the liquid inlet hole intermittently enters the water tank, so that the water tank intermittently supplies water to the water spray assembly.

2. An underground engineering sampling device as claimed in claim 1, characterized in that: The water spray assembly includes an extrusion box, an extrusion plate, a one-way valve and a spray pipe. The extrusion plate is hollow inside, and the lower end of the water blocking plate is connected to the extrusion plate through the one-way valve, so that the water blocking plate flows unidirectionally between the extrusion plates. The extrusion plate can be slidably inserted into the extrusion box, and the bottom of the extrusion box is connected to the spray pipe.

3. An underground engineering sampling device as claimed in claim 2, characterized in that: The spray pipe is arranged around the soil taking barrel, and a plurality of liquid outlet nozzles arranged at intervals are arranged on the spray pipe.

4. An underground engineering sampling device as claimed in claim 2, characterized in that: The lower end of the extrusion plate is connected to a sealing frame, and the edge of the sealing frame contacts the inner wall of the extrusion box.

5. An underground engineering sampling device as claimed in claim 1, characterized in that: It also includes a reciprocating cleaning mechanism, which includes a connecting frame and a cleaning cylinder. The connecting frame is connected to the intermittent tooth plate, and the cleaning cylinder is connected to the connecting frame and is located at the periphery of the soil taking cylinder. A cleaning pad is provided on the inner wall of the cleaning cylinder.

6. An underground engineering sampling device as claimed in claim 5, characterized in that: The reciprocating cleaning mechanism also includes an infusion tube and a shower tube. One end of the infusion tube is connected to the water blocking plate, and the other end is connected to the shower tube. The shower tube is arranged on the cleaning cylinder and has a plurality of liquid outlets for spraying water onto the cleaning pad.

7. An underground engineering sampling device as claimed in claim 1, characterized in that: The motor is connected to a first gear, the upper end of the lead screw is connected to an intermediate gear, and the first gear is meshed with the intermediate gear.

8. An underground engineering sampling device as claimed in claim 1, characterized in that: The gear mechanism includes a first bevel gear, a second bevel gear and a gear set. The first rotating shaft is horizontally arranged and one end is connected to the first bevel gear. The second bevel gear is installed on the second rotating shaft. The second rotating shaft is vertically arranged and rotatably installed on the slider. The second bevel gear is meshed with the first bevel gear. The gear set connects the second rotating shaft and the auger blade.

9. An underground engineering sampling device as claimed in claim 1, characterized in that: The support mechanism includes a base, a support top plate, a plurality of support rods and a plurality of support legs, each of the support legs is arranged at the bottom of the base, the support top plate is arranged above the base, each of the support rods is arranged between the support top plate and the base, the soil taking barrel can pass through the base, and the transmission gear plate and the guide slide plate are fixedly installed on the base.

10. An underground engineering sampling device as claimed in claim 9, characterized in that: The base is provided with a plurality of limit plates extending vertically upward, the outer wall of the soil taking barrel is provided with a plurality of limit grooves, and each of the limit plates is embedded in a limit groove, so that the soil taking barrel can slide along each of the limit plates.

Images