Land detection equipment based on construction cost

Abstract

The invention belongs to the field of land detection, and provides a land detection device based on construction cost, which comprises a vehicle body, a lifting frame is mounted on the vehicle body, a penetrometer is arranged on the lifting frame, a pull-up mechanism is further mounted on the lifting frame, and one end of the pull-up mechanism is connected with the input end of the penetrometer; a position counting mechanism and a counting mechanism are further installed on the vehicle body. Through the arrangement of the position counting mechanism and the counting mechanism, when the penetration rod is hammered, the penetration rod can drive the pointer to synchronously descend, so that the descending distance of the penetrometer can be directly observed, and compared with the prior art that a ruler is used for measuring the penetrometer, the penetrometer has the advantages that the measurement and calculation time is greatly shortened, the detection efficiency is improved, and meanwhile, the detection accuracy is improved. When the pointer descends, the number of descending times of the injection rod can be accurately recorded through the counting mechanism without being influenced by the outside, so that the counting result is more accurate, and the accuracy of the cost result is improved.

Description

Technical Field

[0001] The invention belongs to the field of land detection, and in particular relates to a land detection device based on engineering cost. Background Art

[0002] In engineering cost, land testing is an important part of the preliminary investigation of the project, and its results directly affect the foundation treatment plan, engineering quantity calculation and cost estimation. The land parameters generally required to be tested are soil type and stratification (such as the distribution and thickness of clay, sand, silt, gravel and other soil layers), soil physical properties (such as density and porosity, water content and liquid limit, permeability coefficient, etc.), foundation bearing capacity, soil pollution detection, radioactivity detection, terrain undulation and slope, etc.;

[0003] Among them, the standard penetration test (SPT) or the static penetration test (CPT) is usually used to detect the bearing capacity of the foundation. If the bearing capacity is insufficient, the foundation needs to be replaced, reinforced or deepened, which significantly increases the project cost.

[0004] The traditional standard penetration test (SPT) requires more than two construction workers to operate it, one person holding the penetrometer and the other operating the hammer. The compressibility, density and other parameters of the soil layer are judged based on the sinking distance of the penetrometer and the number of hammer blows. The traditional way to measure the sinking distance is for the worker to measure with a tape measure, and the way to calculate the number of hammer blows is for the worker to count verbally. Although the distance needs to be recorded every 30 cm, the worker still needs to make multiple measurements to ensure that the sinking distance of the penetrometer does not exceed 30 cm, thereby ensuring the accuracy of the data. Each time the sinking distance is measured, the hammer needs to be stopped, which will delay the test and reduce the test efficiency. The worker's verbal counting is easily affected by himself or the outside world and makes mistakes. When the worker is absent-minded or remembers the wrong number, it is easy to record the data incorrectly, resulting in inaccurate counting results, affecting the accuracy of the soil layer detection and analysis results, and thus causing deviations in the project cost results. Summary of the invention

[0005] The purpose of the present invention is to provide a land detection device based on engineering cost, aiming to solve the technical problems in the prior art of reduced test efficiency and deviation in engineering cost results caused by manual measurement and oral counting.

[0006] The present invention is implemented as follows: a land detection device based on engineering cost includes a vehicle body, a lifting frame is installed on the vehicle body, a penetrator is arranged on the lifting frame, an opening for the penetrator to pass through is opened on the vehicle body, a lifting mechanism is also installed on the lifting frame, and one end of the lifting mechanism is connected to the input end of the penetrator;

[0007] A position measuring mechanism and a counting mechanism are also installed on the vehicle body. One end of the position measuring mechanism is detachably connected to the penetrator. The position measuring mechanism is used to count the distance that the penetrator descends. One end of the counting mechanism is connected to the position measuring mechanism. The counting mechanism is used to count the number of times the position measuring mechanism descends.

[0008] Further technical solution: The position measuring mechanism includes a fixed sliding rod fixedly connected to the vehicle body. A collar is sleeved on the fixed sliding rod. One side surface of the collar close to the penetrator is connected with a fixed ring through a first connecting rod. The fixed ring is sleeved on the penetrator. A clamping assembly for fixing the fixed ring to the penetrator is installed on the fixed ring. The other side surface of the collar is connected with an indicating needle through a second connecting rod. A scale plate is fixedly installed on the vehicle body. Scale lines are provided on the side surface of the scale plate. The indicating needle extends to the side of the scale lines.

[0009] The clamping assembly includes two first screws. The two first screws are symmetrically threadedly connected to the fixed ring. Clamping pieces are rotatably installed at the opposite ends of the two first screws. A material with a relatively large friction coefficient is provided on the side surface of the clamping piece close to the penetrator.

[0010] Further technical solution: The counting mechanism includes a first mounting bracket fixedly connected to the vehicle body. A vertical cylinder body is fixedly installed on the first mounting bracket. A piston block is slidably installed inside the cylinder body. Hydraulic oil is filled on both sides of the piston block. Two one-way valve assemblies are provided on the piston block. The directions of the two one-way valve assemblies are opposite. A piston rod is fixedly connected to the side surface of the piston block. One end of the piston rod passing through the bottom of the cylinder body is fixedly connected with a portal frame. Infrared receiving ends and infrared transmitting ends that cooperate with each other are respectively fixedly installed at the bottom ends of the two ends of the portal frame. The infrared receiving end and the infrared transmitting end are both connected to a counter through wires. The infrared receiving end and the infrared transmitting end are respectively located on both sides of the second connecting rod. A light shielding plate is fixedly connected to the second connecting rod.

[0011] A connecting plate is fixedly connected to the portal frame. One end of the connecting plate is slidably installed on the fixed sliding rod. A tension spring is connected between the connecting plate and the collar. Initially, the light shielding plate is located above the infrared receiving end and the infrared transmitting end.

[0012] Further technical solution: The one-way valve assembly includes an oil inlet fine hole and an oil outlet thick hole opened on the piston block. The oil inlet fine hole and the oil outlet thick hole penetrate through the piston block. A polished rod is fixedly connected to the piston block. A plugging cone head is slidably installed on the polished rod. A compression spring is connected between the plugging cone head and the piston block. The plugging cone head plugs the port of the oil inlet fine hole.

[0013] Further technical solution: the lifting frame includes a fixed guide rail frame fixedly installed on the top of the vehicle body, a movable mounting frame is slidably installed on the fixed guide rail frame, a first telescopic rod is fixedly installed on the vehicle body, and a movable end of the first telescopic rod is fixedly connected to the movable mounting frame.

[0014] Further technical solution: the penetrator includes a guide rod, multiple penetration rods and a shoe head, the guide rod passes through and is slidably installed on the top of the movable mounting frame, the bottom end of the guide rod is screwed to the top end of the penetration rod, the shoe head is screwed to the bottom end of the penetration rod, the guide rod is sleeved with an electromagnetic assembly and a core hammer from top to bottom, and the guide rod is fixedly connected to a hammer seat on the side below the core hammer.

[0015] Further technical solution: the lifting mechanism includes a mounting plate fixedly mounted on the side of the movable mounting frame, a wire take-up drum is rotatably mounted on the mounting plate, a pull rope is wound on the wire take-up drum, one end of the pull rope is fixedly connected to the electromagnetic assembly, a third mounting frame is fixedly connected to the top of the movable mounting frame, a fixed pulley is provided on the third mounting frame, the middle part of the pull rope is wound on the fixed pulley, a second motor is also mounted on the mounting plate, and the output shaft of the second motor is fixedly connected to the wire take-up drum.

[0016] Further technical solution: The electromagnetic assembly includes an insulating shell sleeved on the guide rod, an outer electromagnet and an inner electromagnet are arranged on the insulating shell, a shielding ring is arranged between the outer electromagnet and the inner electromagnet, and the shielding ring is made of a material that can shield electromagnetic force. The outer electromagnet and the inner electromagnet are both connected to the controller.

[0017] A further technical solution includes a drill bit, the shoe head can be removed, and the drill bit can be screwed to the bottom of the penetration rod;

[0018] The lifting frame is also equipped with a power mechanism, which includes a second telescopic rod fixedly mounted on the vehicle body, a rotary cylinder fixedly mounted on the movable end of the second telescopic rod, a second mounting frame fixedly connected to the movable end of the rotary cylinder, a first motor fixedly mounted on the second mounting frame, a card joint fixedly mounted on the output shaft of the first motor, a card block matched with the card joint fixedly mounted on the top of the guide rod, and the card block and the card joint can be plugged in.

[0019] Further technical solution: A guide mechanism is also installed on the vehicle body, and the guide mechanism includes two vertical plates, and the two vertical plates are symmetrically installed on both sides of the penetrator. Guide plates are slidably installed on the two vertical plates through guide columns. A second screw is also threadedly connected to the vertical plate, and one end of the second screw is rotatably connected to the guide plate. The side of the guide plate close to the penetrator is made of a material with a small friction coefficient.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] 1. In the present invention, by setting a position indicating mechanism and a counting mechanism, when the penetration rod is hammered, the penetration rod will drive the indicating needle to descend synchronously, so that the descending distance of the penetrometer can be directly observed. Compared with the prior art where a ruler is used to measure the penetrometer, the present invention greatly shortens the measurement and calculation time, improves the detection efficiency. At the same time, when the indicating needle descends, the counting mechanism can accurately record the number of times the penetration rod descends, without being affected by the outside world, thus making the counting result more accurate and improving the accuracy of the cost estimation result;

[0022] 2. In the present invention, by setting an outer electromagnet and an inner electromagnet, the electromagnetic assembly can adsorb the impact hammer or the guide rod, making the lifting operation of the guide rod simpler. Compared with the prior art where the electromagnet abuts against the top of the guide rod and then drives the guide rod to lift, in the present invention, the inner electromagnet directly adsorbs the guide rod and then directly drives the guide rod to lift, making the operation of the guide rod simpler and more convenient;

[0023] 3. In the present invention, by setting a drill bit and a movable power mechanism to cooperate with it, before the test, the drill bit can be screwed to the bottom of the penetration rod, and then the power mechanism is inserted into the end of the guide rod. By driving the drill bit to rotate through the power mechanism, drilling can be carried out on the ground without manual drilling, saving the physical strength of the staff, improving the drilling efficiency and the detection efficiency;

[0024] 4. In the present invention, by setting a guiding mechanism, after the end of the penetration rod extends below the vehicle body, a material guiding channel can be formed by two guiding pieces, enabling the penetration rod to move along the material guiding channel, avoiding the deviation of the penetration rod, and eliminating the need for manual holding, thus avoiding harm to the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a front view structural schematic diagram of the whole of the present invention.

[0026] Figure 2 It is a side view structural schematic diagram of the whole of the present invention.

[0027] Figure 3 In the present invention Figure 2 An enlarged schematic diagram at position B in

[0028] Figure 4 It is a cross-sectional structural schematic diagram of the counting mechanism in the present invention.

[0029] Figure 5 It is a whole structural schematic diagram of the present invention when adding a penetration rod.

[0030] Figure 6This is a schematic structural diagram of the electromagnetic component in the present invention.

[0031] Figure 7 This is a schematic diagram of the overall structure when replacing the drill bit in the present invention.

[0032] Figure 8 In the present invention Figure 1 The enlarged schematic diagram at position A in

[0033] In the drawings: 1, vehicle body;

[0034] 2, lifting frame; 21, first telescopic rod; 22, movable mounting frame; 23, fixed guide rail frame;

[0035] 3, penetrator; 31, guide rod; 32, electromagnetic component; 321, insulating shell; 322, outer electromagnet; 323, shielding ring; 324, inner electromagnet; 33, through hammer; 34, hammer base; 35, penetration rod; 36, shoe head;

[0036] 4, position measuring mechanism; 41, first screw rod; 42, fixed ring; 43, clamping piece; 44, first connecting rod; 45, fixed slide bar; 46, collar; 47, second connecting rod; 48, indicating needle; 49, scale plate;

[0037] 5, counting mechanism; 51, tension spring; 52, connecting plate; 53, gantry; 54, piston rod; 55, infrared receiving end; 56, light shielding plate; 57, infrared transmitting end; 58, cylinder body; 59, first mounting frame; 510, piston block; 511, fine oil inlet hole; 512, plugging cone head; 513, thick oil outlet hole; 514, compression spring; 515, optical rod;

[0038] 6, power mechanism; 61, second mounting frame; 62, first motor; 63, clamping joint; 64, rotary cylinder; 65, clamping block; 66, second telescopic rod;

[0039] 7, lifting mechanism; 71, fixed pulley; 72, third mounting frame; 73, pulling rope; 74, wire reel; 75, second motor; 76, mounting plate;

[0040] 8, guiding mechanism; 81, vertical plate; 82, second screw rod; 83, guiding column; 84, guiding piece;

[0041] 9, drill bit; 10, opening. Detailed implementation manners

[0042] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0043] The following describes the specific implementation of the present invention in detail in combination with specific embodiments.

[0044] As Figures 1 - 8 shown, a land detection device based on project cost provided by the present invention includes a vehicle body 1. The vehicle body 1 can be a trolley or a semi-trailer. An elevating frame 2 is installed on the vehicle body 1. A penetrometer 3 is provided on the elevating frame 2. An opening 10 for the penetrometer 3 to pass through is formed on the vehicle body 1. A lifting mechanism 7 is also installed on the elevating frame 2. One end of the lifting mechanism 7 is connected to the input end of the penetrometer 3;

[0045] A position counting mechanism 4 and a counting mechanism 5 are also installed on the vehicle body 1. One end of the position counting mechanism 4 is detachably connected to the penetrometer 3. The position counting mechanism 4 is used to count the distance that the penetrometer 3 descends. One end of the counting mechanism 5 is connected to the position counting mechanism 4. The counting mechanism 5 is used to count the number of times that the position counting mechanism 4 descends.

[0046] In a land detection device based on project cost provided by the present invention, in this embodiment, the position counting mechanism 4 includes a fixed slide bar 45 fixedly connected to the vehicle body 1. A collar 46 is sleeved on the fixed slide bar 45. One side of the collar 46 close to the penetrometer 3 is connected with a fixed ring 42 through a first connecting rod 44. The fixed ring 42 is sleeved on the penetrometer 3. A clamping assembly for fixing the fixed ring 42 to the penetrometer 3 is installed on the fixed ring 42. The other side of the collar 46 is connected with an indicating needle 48 through a second connecting rod 47. A scale plate 49 is fixedly installed on the vehicle body 1. Scale lines are provided on the side of the scale plate 49. The scale lines have a small scale of 1 cm and a large scale of 30 cm. The indicating needle 48 extends to the side of the scale line.

[0047] The clamping assembly includes two first screw rods 41. The two first screw rods 41 are symmetrically threadedly connected to the fixed ring 42. Clamping pieces 43 are rotatably installed at opposite ends of the two first screw rods 41. A material with a relatively large friction coefficient, such as rubber, is provided on the side of the clamping piece 43 close to the penetrometer 3.

[0048] Rotate the first screw rod 41. The first screw rod 41 drives the clamping piece 43 to move, so that the clamping piece 43 clamps on the penetration rod 35, and the fixed ring 42 can be fixed to the penetration rod 35. When the penetration rod 35 penetrates the ground, the penetration rod 35 will drive the fixed ring 42 to descend synchronously through the clamping piece 43. The fixed ring 42 drives the indicating needle 48 to descend through the first connecting rod 44, the collar 46 and the second connecting rod 47. Then, the descending distance of the penetrometer 3 can be directly observed. Compared with the prior art in which a ruler is used to measure the penetrometer 3, the present invention greatly shortens the measurement and calculation time and improves the detection efficiency.

[0049] It should be noted that when fixing the fixed ring 42 to the penetration rod 35, it is best to make the indicating needle 48 point to the large scale line, which is convenient for subsequent observation and calculation.

[0050] A land detection device based on project cost provided by the present invention. In this embodiment, the counting mechanism 5 includes a first mounting frame 59 fixedly connected to the vehicle body 1. A vertical cylinder 58 is fixedly installed on the first mounting frame 59. A piston block 510 is slidably installed inside the cylinder 58. Hydraulic oil is filled on both sides of the piston block 510. Two one-way valve assemblies are provided on the piston block 510, and the directions of the two one-way valve assemblies are opposite. A piston rod 54 is fixedly connected to the side surface of the piston block 510. One end of the piston rod 54 passing through the bottom of the cylinder 58 is fixedly connected to a gantry 53. Infrared receiving ends 55 and infrared transmitting ends 57 that cooperate with each other are respectively fixedly installed at both bottom ends of the gantry 53. The infrared receiving end 55 and the infrared transmitting end 57 are both connected to a counter (not shown) through wires. The infrared receiving end 55 and the infrared transmitting end 57 are respectively located on both sides of the second connecting rod 47. A light shielding plate 56 is fixedly connected to the second connecting rod 47;

[0051] A connecting plate 52 is fixedly connected to the gantry 53. One end of the connecting plate 52 is slidably installed on the fixed sliding rod 45. A tension spring 51 is connected between the connecting plate 52 and the collar 46. Initially, the light shielding plate 56 is located above the infrared receiving end 55 and the infrared transmitting end 57.

[0052] Specifically, a controller and a storage battery are further provided on the vehicle body 1. The counter is installed on the controller, which can make the device move freely and then perform detection at different locations.

[0053] A land detection device based on project cost provided by the present invention. In this embodiment, the one-way valve assembly includes an oil inlet fine hole 511 and an oil outlet coarse hole 513 opened on the piston block 510. The oil inlet fine hole 511 and the oil outlet coarse hole 513 penetrate through the piston block 510. A polished rod 515 is fixedly connected to the piston block 510. A plugging cone head 512 is slidably installed on the polished rod 515. A compression spring 514 is connected between the plugging cone head 512 and the piston block 510. The plugging cone head 512 plugs the port of the oil inlet fine hole 511.

[0054] Specifically, one end of the plugging cone head 512 facing the oil inlet fine hole 511 is a cone. The maximum diameter of the plugging cone head 512 is smaller than the diameter of the oil outlet coarse hole 513. And the inside of the cylinder 58 is divided into two chambers by the piston block 510. The chamber where the piston rod 54 is located is denoted as the tension chamber, and the other chamber is denoted as the compression chamber;

[0055] During use, when the penetration rod 35 moves downward, the penetration rod 35 drives the collar 46 and the second connecting rod 47 to descend. The light shielding plate 56 on the second connecting rod 47 blocks the space between the infrared receiving end 55 and the infrared transmitting end 57. At the same time, due to the extremely rapid descent of the penetration rod 35, the collar 46 pulls the tension spring 51 to deform. After the penetrator 3 stops moving, under the pulling force of the tension spring 51, the connecting plate 52 drives the piston rod 54 to descend slowly, so that the infrared receiving end 55 and the infrared transmitting end 57 move back under the light shielding plate 56, and the infrared rays emitted by the infrared transmitting end 57 are received by the infrared receiving end 55 again. At this time, the on-off of the infrared rays between the infrared receiving end 55 and the infrared transmitting end 57 is a complete count, making the counting result more accurate and improving the accuracy rate of the cost calculation result;

[0056] Principle of the slow descent of the piston rod 54: When the tension spring 51 pulls the piston rod 54 and the piston block 510 to descend, the piston block 510 moves towards the tension chamber. The oil pressure in the tension chamber is greater than the elastic force of the compression spring 514, so that the hydraulic oil in the tension chamber pushes open the sealing cone head 512 and flows into the compression chamber through the thick oil outlet hole 513. Since the aperture of the thin oil inlet hole 511 is small, the flow rate of the hydraulic oil through the thin oil inlet hole 511 is slow. Therefore, the end of the tension spring 51 and the end of the piston rod 54 move out of sync.

[0057] When moving the counting mechanism 4 upward, the piston rod 54 can be slowly pushed to make the piston rod 54 move upward. Due to the incompressible property of the liquid, as long as the hydraulic oil does not leak from the one-way valve assembly, the position of the piston block 510 in the cylinder 58 remains unchanged. In the static state, in order to keep the position of the piston block 510 unchanged, initially, the elastic force of the compression spring 514 is slightly greater than the sum of the gravity of the piston block 510 and the piston rod 54.

[0058] A land detection device based on project cost provided by the present invention. In this embodiment, the lifting frame 2 includes a fixed guide rail frame 23 fixedly installed on the top of the vehicle body 1. An active mounting frame 22 is slidably mounted on the fixed guide rail frame 23. A first telescopic rod 21 is fixedly installed on the vehicle body 1, and the movable end of the first telescopic rod 21 is fixedly connected to the active mounting frame 22.

[0059] A land detection device based on project cost provided by the present invention. In this embodiment, the penetrator 3 includes a guide rod 31, a plurality of penetration rods 35 and a shoe head 36. The guide rod 31 penetrates and is slidably installed at the top of the movable mounting frame 22. The bottom end of the guide rod 31 is screwed to the top end of the penetration rod 35. The shoe head 36 is screwed to the bottom end of the penetration rod 35. An electromagnetic assembly 32 and a core hammer 33 are sleeved on the guide rod 31 from top to bottom. A hammer seat 34 is fixedly connected to the side of the guide rod 31 below the core hammer 33. The weight of the core hammer 33 is 63.5 kg.

[0060] A land detection device based on project cost provided by the present invention. In this embodiment, the lifting mechanism 7 includes a mounting plate 76 fixedly installed on the side of the movable mounting frame 22. A wire reel 74 is rotatably installed on the mounting plate 76. A pulling rope 73 is wound around the wire reel 74. One end of the pulling rope 73 is fixedly connected to the electromagnetic assembly 32. A third mounting frame 72 is fixedly connected to the top of the movable mounting frame 22. A fixed pulley 71 is arranged on the third mounting frame 72. The middle of the pulling rope 73 is wound around the fixed pulley 71. A second motor 75 is also installed on the mounting plate 76. The output shaft of the second motor 75 is fixedly connected to the wire reel 74.

[0061] When performing a standard penetration test, first dig a hole in the ground and clean the soil at the bottom of the hole. Then, the second motor 75 drives the wire reel 74 to wind up the pulling rope 73, so that the pulling rope 73 lifts the guide rod 31 through the electromagnetic assembly 32. When the height of the lifting frame 2 is not enough, the first telescopic rod 21 can be used to drive the movable mounting frame 22 to rise, leaving sufficient space for the penetrator 3. Then, the penetration rod 35 is screwed to the bottom of the guide rod 31, and the shoe head 36 is screwed to the bottom of the penetration rod 35. Then, the pulling rope 73 drives the guide rod 31 to descend, so that the shoe head 36 falls to the bottom of the hole. Then, one end of the position counting mechanism 4 is fixedly connected to the penetration rod 35;

[0062] One staff member holds the penetration rod 35 by hand, and another staff member operates the lifting mechanism 7. First, the electromagnetic assembly 32 is powered on to adsorb the core hammer 33 by the electromagnetic assembly 32. The wire reel 74 winds up the pulling rope 73. The pulling rope 73 drives the core hammer 33 to rise through the electromagnetic assembly 32, so that the core hammer 33 rises 76 cm. Then, the electromagnetic assembly 32 is powered off, and the core hammer 33 will fall naturally. When the core hammer 33 hits the hammer seat 34, due to inertia, the shoe head 36 and the penetration rod 35 are penetrated into the ground;

[0063] Meanwhile, the penetration rod 35 drives the indicating needle 48 to descend synchronously, and the distance of the descent of the penetration rod 35 can be accurately calculated. At the same time, the counting mechanism 5 also counts the number of times the penetration rod 35 descends, which is convenient for subsequent bearing capacity calculation, avoids errors during manual measurement and counting, and makes the test results more accurate.

[0064] For a land detection device based on project cost provided by the present invention, in order to make the device easy to operate and better control the guide rod 31, in this embodiment, the electromagnetic assembly 32 includes an insulating shell 321 sleeved on the guide rod 31. An outer electromagnet 322 and an inner electromagnet 324 are arranged on the insulating shell 321, and a shielding ring 323 is arranged between the outer electromagnet 322 and the inner electromagnet 324. The shielding ring 323 is made of a material that can shield electromagnetic force, such as silicon steel, copper, aluminum, etc. Both the outer electromagnet 322 and the inner electromagnet 324 are connected to the controller.

[0065] Specifically, when the power supply of the outer electromagnet 322 is turned on and the power supply of the inner electromagnet 324 is turned off, the electromagnetic assembly 32 only adsorbs the impact hammer 33. At this time, the electromagnetic assembly 32 can drive the impact hammer 33 to move upward. When the power supply of the inner electromagnet 324 is turned on and the power supply of the outer electromagnet 322 is turned off, the electromagnetic assembly 32 adsorbs the guide rod 31. At this time, only the first telescopic rod 21 can be used to drive the movable mounting frame 22 and the electromagnetic assembly 32 to rise synchronously, without starting the second motor 75 again. Thus, when adding the penetration rod 35 and the guide rod 31 needs to rise, the guide rod 31 is easier to operate;

[0066] Otherwise, when moving the guide rod 31 upward, it is necessary to first raise the movable mounting frame 22 and make the end of the guide rod 31 fall to the top of the movable mounting frame 22, and then the second motor 75 can be operated to make the pulling rope 73 drive the electromagnetic assembly 32 to rise, and the top of the electromagnetic assembly 32 is blocked by the top of the guide rod 31, and then the electromagnetic assembly 32 can drive the guide rod 31 to rise.

[0067] For a land detection device based on project cost provided by the present invention, since it is necessary to drill holes in the ground before the experiment, in order to save the time of manual drilling, in this embodiment, it further includes a drill bit 9. The shoe head 36 can be disassembled, and the drill bit 9 is screwed onto the bottom of the penetration rod 35;

[0068] A power mechanism 6 is further installed on the lifting frame 2. The power mechanism 6 includes a second telescopic rod 66 fixedly installed on the vehicle body 1. The movable end of the second telescopic rod 66 is fixedly installed with a rotary cylinder 64. The movable end of the rotary cylinder 64 is fixedly connected with a second mounting frame 61. A first motor 62 is fixedly installed on the second mounting frame 61. A clamping joint 63 is fixedly installed on the output shaft of the first motor 62. A clamping block 65 matched with the clamping joint 63 is fixedly installed at the top of the guide rod 31. The clamping block 65 and the clamping joint 63 can be inserted into each other.

[0069] Before the test, raise the penetration rod 35, first remove the boot head 36, then screw the drill bit 9 to the bottom of the penetration rod 35, and then control the guide rod 31 to descend so that the bottom of the drill bit 9 contacts the ground. Then drive the second mounting frame 61 and the first motor 62 to rotate 90° through the rotary cylinder 64, and adjust the height of the first motor 62 through the second telescopic rod 66 so that the clamping joint 63 is inserted into the clamping block 65. Then the first motor 62 can be started. The first motor 62 drives the guide rod 31, the penetration rod 35 and the drill bit 9 to rotate. At the same time, the second telescopic rod 66 drives the first motor 62 to slowly descend, and then drilling can be carried out on the ground. After drilling is completed, drive the second mounting frame 61 to return through the rotary cylinder 64, and then drive the guide rod 31 to rise through the electromagnetic assembly 32, replace the boot head 36, and then the test can be started. There is no need for manual drilling, which saves the physical strength of the staff, improves the drilling efficiency and the detection efficiency.

[0070] It should be noted that the rotation direction of the first motor 62 is opposite to the screwing direction of the guide rod 31 to prevent loosening between the guide rod 31 and the penetration rod 35.

[0071] For a land detection device based on project cost provided by the present invention, since the penetrator 3 is relatively long, the distance of the penetrator 3 in the air is relatively large, resulting in easy shaking of the penetrator 3. Therefore, when the penetrator 3 is penetrated into the ground, it is necessary for the staff to manually hold the penetration rod 35 to prevent the penetration rod 35 from deflecting. However, the staff holding the penetration rod 35 may cause damage to the hands of the staff. Therefore, in this embodiment, a guiding mechanism 8 is further installed on the vehicle body 1. The guiding mechanism 8 includes two vertical plates 81. The two vertical plates 81 are symmetrically installed on both sides of the penetrator 3. Guide plates 84 are slidably installed on the two vertical plates 81 through guide columns 83. A second screw rod 82 is also threadedly connected to the vertical plates 81. One end of the second screw rod 82 is rotatably connected to the guide plate 84. The side surface of the guide plate 84 close to the penetrator 3 is made of a material with a small coefficient of friction, such as polytetrafluoroethylene (PTFE), etc.

[0072] During the test, after the end of the penetration rod 35 extends under the vehicle body 1, the second screw rod 82 can be rotated. The second screw rod 82 drives the guide piece 84 to approach the penetrator 3, and makes the side surface of the guide piece 84 contact the penetrator 3. The two guide pieces 84 form a material guiding channel, which avoids the deflection of the penetration rod 35 and eliminates the need for manual support, thus preventing harm to the staff. When drilling before the test, since the diameter of the drill bit 9 is larger than that of the penetration rod 35, the two guide pieces 84 can be first separated from each other to allow the drill bit 9 to pass through.

[0073] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

[0074] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A land detection device based on project cost of construction, comprising a vehicle body, characterized in that, A lifting frame is installed on the vehicle body, a penetrator is arranged on the lifting frame, and a pulling mechanism is also installed on the lifting frame, one end of the pulling mechanism is connected to the input end of the penetrator; The vehicle body is also equipped with a measuring mechanism and a counting mechanism. One end of the measuring mechanism is detachably connected to the penetrator, and the measuring mechanism is used to count the distance the penetrator descends. One end of the counting mechanism is connected to the measuring mechanism, and the counting mechanism is used to count the number of times the measuring mechanism descends.

2. The land detection device based on project cost according to claim 1, wherein, The positioning mechanism includes a fixed slide rod fixedly connected to the vehicle body, a ring is sleeved on the fixed slide rod, a fixed ring is connected to a side of the ring close to the penetrator, the fixed ring is sleeved on the penetrator, a clamping assembly for fixing the fixed ring to the penetrator is installed on the fixed ring, the other side of the ring is connected to an indicator needle through a second connecting rod, a scale plate is fixedly installed on the vehicle body, and the indicator needle extends to the side of the scale plate.

3. The land detection device based on project cost according to claim 2, characterized in that The counting mechanism comprises a first mounting frame fixedly connected to the vehicle body, a vertical cylinder is fixedly mounted on the first mounting frame, a piston block is slidably mounted inside the cylinder, both sides of the piston block are filled with hydraulic oil, two one-way valve assemblies are arranged on the piston block, the two one-way valve assemblies are in opposite directions, a piston rod is fixedly connected to the side of the piston block, one end of the piston rod passing through the bottom of the cylinder is fixedly connected to a door frame, matching infrared receiving ends and infrared emitting ends are fixedly mounted on the bottoms of both ends of the door frame, the infrared receiving ends and the infrared emitting ends are connected to the counter through wires, the infrared receiving ends and the infrared emitting ends are respectively located on both sides of a second connecting rod, and a sunshade is fixedly connected to the second connecting rod; A connecting plate is fixedly connected to the door frame, one end of which is slidably mounted on a fixed slide rod, a tension spring is connected between the connecting plate and the ring, and initially, the shading plate is located above the infrared receiving end and the infrared transmitting end.

4. The land detection device based on project cost according to claim 3, characterized in that, The one-way valve assembly includes a fine oil inlet hole and a coarse oil outlet hole formed on the piston block, the fine oil inlet hole and the coarse oil outlet hole penetrate the piston block, a polished rod is fixedly connected to the piston block, a sealing cone head is slidably mounted on the polished rod, a compression spring is connected between the sealing cone head and the piston block, and the sealing cone head blocks the port of the fine oil inlet hole.

5. The land detection device based on project cost according to claim 1, wherein The lifting frame comprises a fixed guide rail frame fixedly mounted on the top of the vehicle body, a movable mounting frame is slidably mounted on the fixed guide rail frame, a first telescopic rod is fixedly mounted on the vehicle body, and a movable end of the first telescopic rod is fixedly connected to the movable mounting frame.

6. The land detection device based on project cost according to claim 1, characterized in that, The penetrator includes a guide rod, multiple penetration rods and a shoe head. The guide rod passes through and is slidably installed on the top of the lifting frame. The bottom end of the guide rod is screwed to the top of the penetration rod. The shoe head is screwed to the bottom end of the penetration rod. An electromagnetic component and a core hammer are sleeved on the guide rod from top to bottom. A hammer seat is fixedly connected to the side of the guide rod below the core hammer.

7. The land detection device based on project cost according to claim 6, wherein, The lifting mechanism includes a mounting plate fixedly installed on the side of the movable mounting frame. A wire reel is rotatably installed on the mounting plate. A pulling rope is wound around the wire reel. One end of the pulling rope is fixedly connected to the electromagnetic assembly. A third mounting frame is fixedly connected to the top of the movable mounting frame. A fixed pulley is arranged on the third mounting frame. The middle part of the pulling rope is wound around the fixed pulley. A second motor is also installed on the mounting plate. The output shaft of the second motor is fixedly connected to the wire reel.

8. The land detection device based on project cost according to claim 6, characterized in that, The electromagnetic assembly includes an insulating shell sleeved on the guide rod. An outer electromagnet and an inner electromagnet are arranged on the insulating shell. A shielding ring is arranged between the outer electromagnet and the inner electromagnet. The shielding ring is made of a material that shields electromagnetic force.

9. The land detection device based on project cost according to claim 6, wherein, The penetrator further includes a drill bit; A power mechanism adapted thereto is also installed on the lifting frame. The power mechanism includes a second telescopic rod fixedly installed on the vehicle body. The movable end of the second telescopic rod is fixedly installed with a rotary cylinder. The movable end of the rotary cylinder is fixedly connected to a second mounting frame. A first motor is fixedly installed on the second mounting frame. A clamping head is fixedly installed on the output shaft of the first motor. A clamping block matched with the clamping head is fixedly installed on the top of the guide rod. The clamping block and the clamping head can be inserted.

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