Soil layer surveying device for engineering surveying

Abstract

The invention discloses a soil layer surveying device for engineering surveying, and particularly relates to the technical field of soil layer surveying.The soil layer surveying device comprises a rack and a drill rod, a control box is fixedly installed on the left portion of the front end of the rack, a drill bit is in threaded connection with the lower portion of the outer surface of the drill rod, and a sampling assembly is arranged in an inner cavity of the drill rod; a movable cleaning assembly is arranged on the inner surface of the rack, and the sampling assembly comprises an energy storage battery fixedly installed at the upper end of the drill rod. According to the soil layer surveying device for engineering surveying, the sampling assembly is arranged, so that the sampling barrel can efficiently drill and collect a soil sample on the inner wall of a hole, the integrity and accuracy of soil layer sampling are ensured, and the stability and consistency of the sampling process are effectively improved; and continuous sampling or discontinuous sampling can be carried out at different depths, the method is more flexible and changeable, reliable data support is provided for soil texture analysis, a scientific basis is further provided for engineering design, construction and safety evaluation, and the precision and reliability of engineering measurement are improved.

Description

Technical Field

[0001] The invention relates to the technical field of soil layer surveying, and in particular to a soil layer surveying device for engineering surveying. Background Art

[0002] "Geological exploration" refers to the investigation and research activities that use various means and methods to survey and detect geology, determine the appropriate bearing layer, determine the foundation type based on the bearing capacity of the bearing layer, and calculate the foundation parameters. During the survey, it is often necessary to use tools to survey the soil layer because of the need to study the underground soil layer conditions.

[0003] Chinese patent publication number CN113933095B discloses a soil layer surveying device for engineering surveying, comprising a base frame, a transfer assembly and a mobile assembly, wherein the base frame is located above the mobile assembly, and a plurality of mobile assemblies are located below the transfer assembly, and a plurality of sampling assemblies are installed on one side of the plurality of base frames, and a motor 2 is installed at one end of the rotating shaft 2 away from the roller 2, and a drill bit is installed at one end of the motor 2, and a sampling column is provided on the outside of the drill bit. After sampling is completed, the sample soil can be temporarily stored when the orientation is changed. When the soil layer surveying device for engineering surveying changes position, the sample soil will not be lost due to bumps, and sufficient sample soil can be brought back after sampling. After sampling, the sample soil of different areas can be separately stored, and the sample soil will not be mixed, which will cause the problem of inaccurate survey data, and is helpful to the accuracy of the survey data. However, the above patent document still has the following defects in the implementation process: Although the above patent can sample and preserve soil samples from different areas during implementation, it is unable to achieve continuous or discontinuous sampling at different depths of the soil layer, and is unable to guarantee the stability and consistency of the soil layer during the sampling process. Summary of the invention

[0004] The main purpose of the present invention is to provide a soil layer surveying device for engineering surveying, which can effectively solve the problem that continuous sampling or discontinuous sampling of soil layers at different depths cannot be achieved, and the stability and consistency of the soil layers during the sampling process cannot be guaranteed.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a soil layer survey device for engineering measurement, including a frame and a drill rod, a control box is fixedly installed on the left front end of the frame, a drill bit is threadedly connected to the lower part of the outer surface of the drill rod, a sampling assembly is arranged in the inner cavity of the drill rod, and a movable cleaning assembly is arranged on the inner surface of the frame.

[0006] Preferably, the sampling assembly includes an energy storage battery fixedly mounted on the upper end of the drill rod, a placing tube is threadedly connected to the inner surface of the drill rod, a rotating mechanism is provided on the inner surface of the drill rod, a propulsion mechanism is provided on the outer surface of the rotating mechanism, a pushing mechanism is provided on the inner surface of the propulsion mechanism, and an opening and closing mechanism is provided on the inner surface of the drill rod.

[0007] Preferably, the rotating mechanism includes an electric cylinder fixedly connected to the upper end of the drill rod, the inner surface of the drill rod is fixedly connected to an oil tank, the lower end of the electric cylinder is fixedly connected to a push plate slidably connected to the inner surface of the oil tank, a hollow cylinder is fixedly connected to the right side of the lower end of the oil tank, the upper part of the inner surface of the hollow cylinder penetrates and extends to the lower part of the inner surface of the oil tank and is fixedly connected to a connecting pipe, a piston rod is slidably connected to the inner surface of the hollow cylinder, a round rod is rotatably connected to the inner surface of the drill rod, a gear is fixedly connected to the middle part of the outer surface of the round rod, a rack meshingly connected to the gear is fixedly connected to a lower end of the piston rod, and the outer surface of the rack is slidably connected to the right part of the inner surface of the drill rod.

[0008] Preferably, the propulsion mechanism includes a circular groove block fixedly connected to the outer surface of the round rod, the inner surface of the circular groove block is fixedly connected to a fixed plate 1, the inner surface of the circular groove block is slidably connected to a piston rod 2 slidably connected to the fixed plate 1, the lower end of the piston rod 2 is fixedly connected to a servo motor 1, the upper part of the inner surface of the circular groove block penetrates and extends to the inner surface of the hollow cylinder and is fixedly connected to a connecting pipe, the output end of the servo motor 1 is fixedly connected to a rotating rod through a coupling, a sampling cylinder is provided on the inner surface of the circular groove block, the outer surface of the rotating rod is fixedly connected to a bearing 1, and the outer surface of the outer ring of the bearing 1 is fixedly connected to the inner surface of the sampling cylinder.

[0009] Preferably, the opening and closing mechanism includes an arc-shaped groove opened on the inner surface of the drill rod, two return springs are fixedly connected to the rear part of the inner surface of the arc-shaped groove, the front ends of the two return springs are commonly fixedly connected to an arc-shaped plate slidably connected to the inner surface of the arc-shaped groove, the rear part of the outer surface of the round rod is fixedly connected to a roller, and the outer surface of the roller is wrapped with a pull rope fixedly connected to the rear end of the arc-shaped plate.

[0010] Preferably, the pushing mechanism includes bearing 2 fixedly connected to the outer surface of the rotating rod, bearing 3 fixedly connected to the inner surface of the sampling tube, a circular plate fixedly connected to the inner surface of the inner ring of bearing 3, a reciprocating rod rotatably connected to the inner surface of the circular plate fixedly connected to the outer surface of the outer ring of bearing 2, and a slide plate slidably connected to the circular plate on the outer surface of the reciprocating rod.

[0011] Preferably, the movable cleaning assembly comprises a slide plate fixedly connected to the inner surface of the frame, the inner surface of the slide plate is provided with a moving mechanism, and the lower part of the inner surface of the frame is provided with a cleaning mechanism.

[0012] Preferably, the moving mechanism includes a threaded rod rotatably connected to the inner surface of the slide plate, the upper end of the threaded rod is fixedly connected to a servo motor 2 fixedly connected to the upper end of the frame, the outer surface of the threaded rod is threadedly connected to two circular blocks slidably connected to the inner surface of the slide plate, the inner surfaces of the two circular blocks are fixedly connected to bearings 4, the inner surfaces of the two bearings 4 are fixedly connected to the outer surface of the drill rod, the upper ends of the upper circular blocks are fixedly connected to a fixed block, and the upper end of the fixed block is fixedly connected to the lower end of the motor on the drill rod.

[0013] Preferably, the cleaning mechanism includes a fixed ring fixedly connected to the lower part of the inner surface of the frame, a plurality of cleaning brushes are fixedly connected to the upper part of the inner surface of the fixed ring at equal distances in a ring shape, a plurality of spring telescopic rods are fixedly connected to the lower part of the inner surface of the fixed ring, and a scraper is fixedly connected to the ends of the plurality of spring telescopic rods on the same side away from the fixed ring.

[0014] Compared with the prior art, the present invention has the following beneficial effects: In the present invention, by providing a sampling assembly, the sampling tube can efficiently drill and collect soil samples on the inner wall of the hole, ensuring the integrity and accuracy of soil layer sampling, effectively improving the stability and consistency of the sampling process, and can perform continuous sampling or discontinuous sampling at different depths, which is more flexible and changeable, providing reliable data support for soil analysis, and further providing a scientific basis for engineering design, construction and safety assessment, thereby improving the accuracy and reliability of engineering measurement.

[0015] In the present invention, a pushing mechanism is provided, and the cooperation of the reciprocating rod and the slide plate can realize pushing the sampled soil into the placement tube, which can effectively avoid accidental interference in the sampling process, ensure the stability of sampling and the integrity of the soil sample, and the up and down movement and limit control of the slide plate effectively push the soil sample into the placement tube, avoiding soil sample loss or contamination, improving the efficiency and accuracy of soil layer survey, and providing reliable soil quality data for engineering design.

[0016] In the present invention, a cleaning mechanism is provided, and the synergistic effect of the spring telescopic rod and the scraper can effectively clean the soil attached to the outer surface of the drill rod, ensuring that the equipment is clean and pollution-free during the sampling process. The self-rotation of the drill rod and the secondary cleaning of the cleaning brush further improve the cleaning efficiency, avoid the risk of cross-contamination of soil samples, ensure the long-term stability and accuracy of the sampling equipment, provide reliable protection for subsequent soil layer surveys, and ensure the accuracy and reliability of engineering measurement data. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the cross-sectional structure of the drill rod and the drill bit of the present invention; Figure 3It is a schematic diagram of the cross-sectional structure of the chute of the present invention; Figure 4 It is a schematic diagram of the cross-sectional structure of the hydraulic mechanism of the present invention; Figure 5 For the present invention Figure 4 A schematic diagram of the enlarged structure at A in the middle; Figure 6 It is a schematic diagram of the cross-sectional structure of the propulsion mechanism of the present invention; Figure 7 It is a schematic diagram of the opening and closing mechanism structure of the present invention; Figure 8 It is a schematic diagram of the cross-sectional structure of the driving mechanism of the present invention; Fig. 9 It is a schematic diagram of the structure of the mobile mechanism of the present invention; Fig.10 It is a schematic diagram of the explosion effect of the cleaning mechanism of the present invention; Fig.11 It is a schematic diagram of the cross-sectional structure of the opening and closing mechanism of the present invention.

[0018] In the figure: 1, frame; 2, control box; 3, drill rod; 4, drill bit; 5, sampling assembly; 51, energy storage battery; 52, rotating mechanism; 521, oil tank; 522, electric cylinder; 523, push plate; 524, hollow cylinder; 525, connecting pipe; 526, piston rod 1; 527, round rod; 528, rack; 529, gear; 53, propulsion mechanism; 531, round groove block; 532, fixing plate 1; 533, piston rod 2; 534, connecting pipe; 535, servo motor 1; 536, rotating rod; 537, sampling tube; 538, bearing 1; 54, opening and closing mechanism; 541. arc groove; 542. arc plate; 543. reset spring; 544. pull rope; 545. roller; 55. pushing mechanism; 551. bearing two; 552. reciprocating rod; 553. bearing three; 554. round plate; 555. slide plate; 56. placing cylinder; 6. mobile cleaning component; 61. mobile mechanism; 611. threaded rod; 612. circular ring block; 613. bearing four; 614. fixed block; 615. servo motor two; 62. slide plate; 63. cleaning mechanism; 631. fixed ring; 632. cleaning brush; 633. spring telescopic rod; 634. scraper. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0020] Embodiment 1, as Figure 1As shown, a soil layer surveying device for engineering surveying includes a frame 1 and a drill rod 3. A control box 2 is fixedly installed on the left front end of the frame 1, a drill bit 4 is threadedly connected to the lower part of the outer surface of the drill rod 3, a sampling component 5 is arranged in the inner cavity of the drill rod 3, and a movable cleaning component 6 is arranged on the inner surface of the frame 1.

[0021] During the implementation of this embodiment, after the frame 1 is moved to the set position, the control box 2 is operated to enable the mobile cleaning component 6 to drive the drill rod 3 and the drill bit 4 to move toward the ground. During the movement, the motor on the drill rod 3 drives the drill bit 4 to drill the soil layer. The drill rod 3 is then brought into the ground, and the inner surface of the hole is sampled by the sampling component 5. The removed soil layer samples are stored in the drill bit 4, so that fixed-distance sampling and cross-distance sampling can be achieved.

[0022] The drill rod 3 and the drill bit 4 mentioned above are both mature soil drilling equipment and components in the prior art, and their internal structures and principles will not be elaborated any more.

[0023] The control box 2 mentioned above is a mature control technology means and equipment in the prior art. In this solution, its controllable functions are utilized, and its internal structure, connection method and principle are not further explained.

[0024] Specifically, in order to sample the inner wall of the soil pore, refer to Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Fig.11 In this embodiment, the sampling assembly 5 includes an energy storage battery 51 fixedly installed on the upper end of the drill rod 3, a placement tube 56 is threadedly connected to the inner surface of the drill rod 3, a rotating mechanism 52 is provided on the inner surface of the drill rod 3, a propulsion mechanism 53 is provided on the outer surface of the rotating mechanism 52, a pushing mechanism 55 is provided on the inner surface of the propulsion mechanism 53, and an opening and closing mechanism 54 is provided on the inner surface of the drill rod 3.

[0025] For further information, see Figure 2 , Figure 4 and Figure 5In this embodiment, the rotating mechanism 52 includes an electric cylinder 522 fixedly connected to the upper end of the drill rod 3, an oil tank 521 fixedly connected to the inner surface of the drill rod 3, a push plate 523 slidably connected to the inner surface of the oil tank 521 fixedly connected to the lower end of the electric cylinder 522, a hollow cylinder 524 fixedly connected to the right side of the lower end of the oil tank 521, a connecting pipe 525 fixedly connected to the upper part of the inner surface of the hollow cylinder 524 penetrates and extends to the lower part of the inner surface of the oil tank 521, a piston rod 526 is slidably connected to the inner surface of the hollow cylinder 524, a round rod 527 is rotatably connected to the inner surface of the drill rod 3, a gear 529 is fixedly connected to the middle part of the outer surface of the round rod 527, a rack 528 meshingly connected to the gear 529 is fixedly connected to the lower end of the piston rod 526, and the outer surface of the rack 528 is slidably connected to the right part of the inner surface of the drill rod 3.

[0026] During the implementation process, the electric cylinder 522 is started to drive the push plate 523 to slide downward on the inner surface of the oil tank 521, so that the push plate 523 can push the hydraulic oil in the oil tank 521 into the inner cavity of the hollow cylinder 524 through the connecting pipe 525. Under the squeezing effect of the hydraulic oil, the piston rod 526 moves downward, driving the rack 528 to slide downward on the inner surface of the drill pipe 3. Since the rack 528 and the gear 529 are meshingly connected, the gear 529 drives the round rod 527 to rotate 90 degrees and change its position.

[0027] After the gear 529 and the rack 528 are meshed, the piston rod 526 drives the rack 528 to move a distance sufficient for the rack 528 to drive the gear 529 to rotate 90 degrees.

[0028] The energy storage battery 51 and the electric cylinder 522 mentioned above are both mature technical means and conventional designs in the prior art, and their internal structures, connection methods and principles are not further elaborated.

[0029] For further information, see Figure 2 , Figure 3 , Figure 7 and Fig.11 In this embodiment, the opening and closing mechanism 54 includes an arc groove 541 opened on the inner surface of the drill rod 3, two return springs 543 are fixedly connected to the rear of the inner surface of the arc groove 541, and the front ends of the two return springs 543 are commonly fixedly connected to an arc plate 542 that is slidably connected to the inner surface of the arc groove 541, and a roller 545 is fixedly connected to the rear of the outer surface of the round rod 527, and a pull rope 544 that is fixedly connected to the rear end of the arc plate 542 is wound around the outer surface of the roller 545.

[0030] During the implementation process, the rotation of the round rod 527 will drive the roller 545 to rotate. Under the action of the winding connection, the roller 545 tightens the pull rope 544, and then pulls the arc plate 542 to slide on the inner surface of the arc groove 541, so that the rectangular hole on the drill rod 3 is opened. At this time, the reset spring 543 is in a compressed state. Conversely, the reverse rotation of the round rod 527 will drive the roller 545 to relax the pull rope 544. At this time, the arc plate 542 is reset by the compression reaction force of the reset spring 543, so that the arc plate 542 can follow the rotation of the round rod 527 to achieve automatic closing and opening. During the sampling process, it can prevent the broken soil in the hole from entering the inner cavity of the drill rod 3 when no sampling is taken.

[0031] For further information, see Figure 2 and Figure 6 In this embodiment, the propulsion mechanism 53 includes a circular groove block 531 fixedly connected to the outer surface of the round rod 527, a fixed plate 532 fixedly connected to the inner surface of the circular groove block 531, a piston rod 533 slidably connected to the inner surface of the circular groove block 531, a servo motor 535 fixedly connected to the lower end of the piston rod 533, the upper part of the inner surface of the circular groove block 531 penetrates and extends to the inner surface of the hollow cylinder 524 and is fixedly connected to a connecting pipe 534, the output end of the servo motor 535 is fixedly connected to a rotating rod 536 through a coupling, a sampling barrel 537 is provided on the inner surface of the circular groove block 531, a bearing 538 is fixedly connected to the outer surface of the rotating rod 536, and the outer surface of the outer ring of the bearing 538 is fixedly connected to the inner surface of the sampling barrel 537.

[0032] During the implementation process, when it is necessary to sample the soil layer on the inner wall of the hole, the rotation of the round rod 527 will drive the circular groove block 531 to rotate 90 degrees. At this time, the lower end of the piston on the piston rod 1 526 will move to the lower part of the inner surface of the hollow cylinder 524, and the piston rod 1 526 cannot move. The push plate 523 continues to push, so that the hydraulic oil in the oil tank 521 will enter the space formed by the circular groove block 531 and the piston rod 2 533 through the connecting pipe 534, pushing the sampling cylinder 537 on the piston rod 2 533 to move to the left. One end of the sampling cylinder 537 gradually extends out of the inner cavity of the circular groove block 531, starting the output end of the servo motor 1 535 to drive the rotating rod 536 to rotate forward through the coupling, and under the action of the bearing 1 538, the rotating rod 536 is rotated forward. The sampling tube 537 is driven downward to rotate, so that the soil layer on the inner wall of the hole can be drilled and sampled while rotating and moving. After the soil layer sampling is completed, the sampling tube 537 can be retracted into the inner cavity of the circular groove block 531 through the reverse operation of the rotating mechanism 52, and the sampling tube 537 can be rotated 90 degrees to restore to the initial state. The soil samples on the inner wall of the hole can be drilled and collected efficiently, ensuring the integrity and accuracy of the soil layer sampling, and effectively improving the stability and consistency of the sampling process. Continuous sampling or discontinuous sampling can be performed at different depths, which is more flexible and changeable, providing reliable data support for soil analysis, and then providing a scientific basis for engineering design, construction and safety assessment, thereby improving the accuracy and reliability of engineering measurement.

[0033] A sampling tube 537 is provided on the inner surface of the middle circular groove block 531 , which satisfies that the sampling tube 537 can slide on the inner surface of the circular groove block 531 and can rotate at the same time, and that the outer surface of the sampling tube 537 and the inner surface of the circular groove block 531 have a certain friction.

[0034] For further information, see Figure 8 In this embodiment, the pushing mechanism 55 includes a second bearing 551 fixedly connected to the outer surface of the rotating rod 536, a third bearing 553 fixedly connected to the inner surface of the sampling tube 537, a circular plate 554 fixedly connected to the inner surface of the inner ring of the third bearing 553, a reciprocating rod 552 rotatably connected to the inner surface of the circular plate 554 fixedly connected to the outer surface of the outer ring of the second bearing 551, and a slide plate 555 slidably connected to the outer surface of the reciprocating rod 552.

[0035] During the implementation process, when the servo motor 1 535 drives the rotating rod 536 to rotate forward, the one-way locking of the bearing 1 538 is realized, so that the sampling barrel 537 can rotate along with the rotation of the rotating rod 536. The rotation of the sampling barrel 537 will drive the outer ring of the bearing 3 553 to rotate. Under the influence of friction, the inner ring of the bearing 3 553 will drive the circular plate 554 and the slide plate 555 to rotate. Since the circular plate 554 is rotatably connected with the reciprocating rod 552, the reciprocating rod 552 will rotate along with the circular plate 554 under the influence of the circular plate 554, that is, the slide plate 555 and the reciprocating rod 552 will rotate along with the sampling barrel 537 at the same time and maintain a state of relative motion. The slide plate 555 will shake to a certain extent on the reciprocating rod 552, but the slide plate 555 cannot be limited by the circular plate 554 and will not move up and down.

[0036] Secondly, when it is necessary to push the soil layer in the sampling tube 537 into the placing tube 56, the output end of the servo motor 1 535 is started to drive the rotating rod 536 to rotate in the opposite direction through the coupling. At this time, the bearing 1 538 is no longer in a locked state, and its inner ring is in an idling state. Then, when the bearing 2 551 is locked, the inner ring drives the outer ring to rotate, and then drives the reciprocating rod 552 to rotate on the inner surface of the circular plate 554. Under the action of the sliding connection, the slide plate 555 drives the inner ring of the bearing on the circular plate 554 to rotate. When the inner ring and outer ring of the bearing 3 553 are locked, the friction between the sampling tube 537 and the circular groove block 531 , so that the sampling tube 537 provides resistance to the rotation of the circular plate 554. At this time, the circular plate 554 cannot rotate, thereby limiting the position of the slide plate 555. Under the sliding connection between the reciprocating rod 552 and the slide plate 555, the slide plate 555 can reciprocate up and down, thereby pushing the sampled soil into the placement tube 56, which can effectively avoid accidental interference during the sampling process and ensure the stability of the sampling and the integrity of the soil sample. The up and down movement and limit control of the slide plate 555 effectively push the soil sample into the placement tube 56, avoiding soil sample loss or contamination, improving the efficiency and accuracy of soil layer survey, and providing reliable soil data for engineering design.

[0037] The bearing one 538, bearing two 551 and bearing three 553 mentioned above are all mature unidirectional rotating parts in the prior art. In the present scheme, they can lock the inner ring and the outer ring in one direction, and the inner ring and the outer ring in the other direction are not locked, and the inner ring is in an idling state. In addition, in the present scheme, the locking directions of bearing one 538, bearing two 551 and bearing three 553 are opposite, and the locking directions of bearing two 551 and bearing three 553 are the same, and their internal structure, principle and connection method will not be elaborated again.

[0038] The reciprocating rod 552 and the slide plate 555 mentioned above constitute a mature ball screw mechanism in the prior art.

[0039] Embodiment 2: Based on Embodiment 1, this embodiment adds a movable cleaning component 6 for adjusting the height of the drill rod 3 and cleaning it, so as to achieve the purpose of adjusting the height of the drill rod 3 and cleaning it.

[0040] Specifically, in order to adjust and clean the drill rod 3 in height, refer to Figure 8 , Fig. 9 and Fig.10 In this embodiment, the movable cleaning assembly 6 includes a slide plate 62 fixedly connected to the inner surface of the frame 1, a movable mechanism 61 is provided on the inner surface of the slide plate 62, and a cleaning mechanism 63 is provided at the lower part of the inner surface of the frame 1.

[0041] For further information, see Fig. 9 In this embodiment, the moving mechanism 61 includes a threaded rod 611 rotatably connected to the inner surface of the slide plate 62, the upper end of the threaded rod 611 is fixedly connected to a servo motor 615 fixedly connected to the upper end of the frame 1, the outer surface of the threaded rod 611 is threadedly connected to two circular blocks 612 slidably connected to the inner surface of the slide plate 62, the inner surfaces of the two circular blocks 612 are fixedly connected to bearings 613, the inner surfaces of the two bearings 613 are fixedly connected to the outer surface of the drill rod 3, the upper end of the upper circular block 612 is fixedly connected to a fixed block 614, and the upper end of the fixed block 614 is fixedly connected to the lower end of the motor on the drill rod 3.

[0042] For further information, see Fig.10 In this embodiment, the cleaning mechanism 63 includes a fixed ring 631 fixedly connected to the lower part of the inner surface of the frame 1, a plurality of cleaning brushes 632 are fixedly connected to the upper part of the inner surface of the fixed ring 631 in an annular manner and equidistantly, a plurality of spring telescopic rods 633 are fixedly connected to the lower part of the inner surface of the fixed ring 631, and a scraper 634 is fixedly connected to the ends of the plurality of spring telescopic rods 633 on the same side away from the fixed ring 631.

[0043] During the implementation process, when the soil sampling depth needs to be adjusted, the output end of the servo motor 2 615 is started to drive the threaded rod 611 to rotate through the coupling. Since the threaded rod 611 and the two circular ring blocks 612 are threadedly connected, the two circular ring blocks 612 will slide synchronously on the inner surface of the slide plate 62, and cooperate with the bearing 4 613 to drive the drill rod 3 to move up and down to realize the rotation of the drill rod 3, so as to adjust the soil sampling depth, ensure that the depth adjustment during the soil sampling process is accurate and flexible, and can be adjusted in real time according to the needs of different soil layers, thereby improving the efficiency and accuracy of the sampling process, and avoiding the risk of inaccurate depth or incomplete sampling.

[0044] Secondly, after the sampling of the soil layer is completed, the drill rod 3 can be tightly attached to the outer surface of the drill rod 3 during the upward movement with the cooperation of the spring telescopic rod 633 and the scraper 634, so as to clean the soil attached to the outer surface of the drill rod 3. The secondary cleaning operation can be achieved by the cleaning brush 632 in conjunction with the rotation of the drill rod 3. The coordinated action of the spring telescopic rod 633 and the scraper 634 can effectively clean the soil attached to the outer surface of the drill rod 3, ensuring that the equipment is clean and pollution-free during the sampling process. The rotation of the drill rod 3 and the secondary cleaning of the cleaning brush 632 further improve the cleaning efficiency, avoid the risk of cross-contamination of soil samples, ensure the long-term stability and accuracy of the sampling equipment, provide reliable guarantee for subsequent soil layer surveys, and ensure the accuracy and reliability of engineering measurement data.

[0045] Finally, the engineering surveyor can disassemble the drill bit 4 and rotate the sampling tube 537 to remove the sampling tube 537 from the inner cavity of the drill rod 3. The order of the soil layer samples in the sampling tube 537 is the reverse order of the sampling process.

[0046] The servo motor 1 535 and the servo motor 2 615 mentioned above are both mature driving technology means and equipment in the prior art. In this solution, the coupling at the output end can rotate forward and reverse, and can stop in time after rotating to a set number of circles. Its internal structure, principle and connection method will not be explained again.

[0047] The connecting pipe 534 mentioned above is a soft pipe in this embodiment.

[0048] Working process: When in use, the moving mechanism 61 drives the drill rod 3 and the drill bit 4 to perform soil drilling operations, and then the sampling tube 537 is rotated 90 degrees by the rotating mechanism 52, and the opening and closing mechanism 54 is opened during the rotation, and the inner wall of the soil layer is drilled through the cooperation of the rotating mechanism 52 and the pushing mechanism 53. The upper step is reversed, and the side sampling tube 537 returns to the initial state. The sampled soil layer is placed in the placement tube 56 under the action of the pushing mechanism 55. After the sampling is completed, the soil attached to the outer surface of the drill rod 3 is cleaned under the action of the cleaning mechanism 63.

[0049] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A soil layer surveying device for engineering surveying, comprising a frame (1) and a drill rod (3), characterized in that: A control box (2) is fixedly mounted on the left front end of the frame (1); a drill bit (4) is threadedly connected to the lower portion of the outer surface of the drill rod (3); a sampling assembly (5) is arranged in the inner cavity of the drill rod (3); and a movable cleaning assembly (6) is arranged on the inner surface of the frame (1).

2. The soil layer surveying device for engineering surveying according to claim 1 is characterized in that: The sampling assembly (5) comprises an energy storage battery (51) fixedly mounted on the upper end of a drill rod (3); a placement tube (56) is threadedly connected to the inner surface of the drill rod (3); a rotating mechanism (52) is provided on the inner surface of the drill rod (3); a propulsion mechanism (53) is provided on the outer surface of the rotating mechanism (52); a pushing mechanism (55) is provided on the inner surface of the propulsion mechanism (53); and an opening and closing mechanism (54) is provided on the inner surface of the drill rod (3).

3. The soil layer surveying device for engineering surveying according to claim 2 is characterized in that: The rotating mechanism (52) comprises an electric cylinder (522) fixedly connected to the upper end of the drill rod (3); an oil tank (521) is fixedly connected to the inner surface of the drill rod (3); a push plate (523) is fixedly connected to the lower end of the electric cylinder (522) and is slidably connected to the inner surface of the oil tank (521); a hollow cylinder (524) is fixedly connected to the right side of the lower end of the oil tank (521); the upper part of the inner surface of the hollow cylinder (524) penetrates and extends to the lower part of the inner surface of the oil tank (521); A connecting pipe (525) is fixedly connected to the hollow cylinder (524); a piston rod (526) is slidably connected to the inner surface of the hollow cylinder (524); a round rod (527) is rotatably connected to the inner surface of the drill rod (3); a gear (529) is fixedly connected to the middle of the outer surface of the round rod (527); a rack (528) meshingly connected to the gear (529) is fixedly connected to the lower end of the piston rod (526); and the outer surface of the rack (528) is slidably connected to the right part of the inner surface of the drill rod (3).

4. The soil layer surveying device for engineering surveying according to claim 3 is characterized in that: The propulsion mechanism (53) comprises a circular groove block (531) fixedly connected to the outer surface of the circular rod (527); a fixing plate 1 (532) is fixedly connected to the inner surface of the circular groove block (531); a piston rod 2 (533) slidably connected to the fixing plate 1 (532) is slidably connected to the inner surface of the circular groove block (531); a servo motor 1 (535) is fixedly connected to the lower end of the piston rod 2 (533); an upper portion of the inner surface of the circular groove block (531) penetrates through and extends to the inner surface of the hollow cylinder (524) and is fixedly connected to a connecting pipe (534); an output end of the servo motor 1 (535) is fixedly connected to a rotating rod (536) via a coupling; a sampling cylinder (537) is provided on the inner surface of the circular groove block (531); a bearing 1 (538) is fixedly connected to the outer surface of the rotating rod (536); and the outer surface of the outer ring of the bearing 1 (538) is fixedly connected to the inner surface of the sampling cylinder (537).

5. The soil layer surveying device for engineering surveying according to claim 3 is characterized in that: The opening and closing mechanism (54) comprises an arcuate groove (541) formed on the inner surface of the drill rod (3); two return springs (543) are fixedly connected to the rear of the inner surface of the arcuate groove (541); the front ends of the two return springs (543) are fixedly connected to an arcuate plate (542) slidably connected to the inner surface of the arcuate groove (541); the rear of the outer surface of the round rod (527) is fixedly connected to a roller (545); the outer surface of the roller (545) is wound around a pull rope (544) fixedly connected to the rear end of the arcuate plate (542).

6. The soil layer surveying device for engineering surveying according to claim 4, characterized in that: The pushing mechanism (55) comprises a second bearing (551) fixedly connected to the outer surface of the rotating rod (536); the inner surface of the sampling tube (537) is fixedly connected to a third bearing (553); the inner surface of the inner ring of the third bearing (553) is fixedly connected to a circular plate (554); the outer surface of the outer ring of the second bearing (551) is fixedly connected to a reciprocating rod (552) rotatably connected to the inner surface of the circular plate (554); the outer surface of the reciprocating rod (552) is slidably connected to a slide plate (555) slidably connected to the circular plate (554).

7. The soil layer surveying device for engineering surveying according to claim 1 is characterized in that: The movable cleaning assembly (6) comprises a slide plate (62) fixedly connected to the inner surface of the frame (1), a movable mechanism (61) is provided on the inner surface of the slide plate (62), and a cleaning mechanism (63) is provided at the lower part of the inner surface of the frame (1).

8. The soil layer surveying device for engineering surveying according to claim 7, characterized in that: The moving mechanism (61) comprises a threaded rod (611) rotatably connected to the inner surface of the slide plate (62); the upper end of the threaded rod (611) is fixedly connected to a servo motor 2 (615) fixedly connected to the upper end of the frame (1); the outer surface of the threaded rod (611) is threadedly connected to two circular blocks (612) slidably connected to the inner surface of the slide plate (62); the inner surfaces of the two circular blocks (612) are fixedly connected to bearing 4 (613); the inner surfaces of the two bearing 4 (613) are fixedly connected to the outer surface of the drill rod (3); the upper end of the circular block (612) located at the upper part is fixedly connected to a fixed block (614); the upper end of the fixed block (614) is fixedly connected to the lower end of the motor on the drill rod (3).

9. The soil layer surveying device for engineering surveying according to claim 7, characterized in that: The cleaning mechanism (63) comprises a fixing ring (631) fixedly connected to the lower portion of the inner surface of the frame (1); a plurality of cleaning brushes (632) are fixedly connected to the upper portion of the inner surface of the fixing ring (631) at equal intervals in an annular manner; a plurality of spring telescopic rods (633) are fixedly connected to the lower portion of the inner surface of the fixing ring (631); and a scraper (634) is fixedly connected to the ends of the plurality of spring telescopic rods (633) on the same side away from the fixing ring (631).

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