A land detection device based on engineering cost

Abstract

The present invention belongs to the field of land detection and provides a land detection device based on project cost, comprising a vehicle body, a lifting frame installed on the vehicle body, a penetrometer installed on the lifting frame, a lifting mechanism installed on the lifting frame, one end of the lifting mechanism connected to the input end of the penetrometer; and a position measuring mechanism and a counting mechanism installed on the vehicle body. By providing the position measuring mechanism and the counting mechanism, when the penetrometer rod is hammered, the penetrometer rod drives the indicator needle to descend synchronously, so that the descending distance of the penetrometer can be directly observed. Compared with the prior art method of measuring the penetrometer with a ruler, the present invention greatly shortens the measurement and calculation time and improves the detection efficiency. At the same time, when the indicator needle descends, the counting mechanism can accurately record the number of times the penetrometer rod descends without being affected by the outside world, thereby making the counting result more accurate and improving the accuracy of the cost result.

Description

Technical Field

[0001] The present 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 estimation, land testing is a crucial step in the early stages of a project's investigation, as its results directly impact foundation treatment plans, engineering quantity calculations, and cost estimates. Commonly tested land parameters include soil type and stratification (e.g., the distribution and thickness of clay, sand, silt, gravel, and other soil layers), soil physical properties (e.g., density and porosity, water content and liquid limit, permeability coefficient), foundation bearing capacity, soil contamination testing, radioactivity testing, and terrain undulation and slope.

[0003] Among them, the standard penetration test (SPT) or 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 holds the penetrometer and the other operates the hammer. The compressibility, density and other parameters of the soil layer are judged according to the sinking distance of the penetrometer and the number of hammer blows. The traditional way to measure the sinking distance is that the staff uses a tape measure to measure, and the way to calculate the number of hammer blows is for the staff to count verbally. Although the distance needs to be recorded every 30 cm, the staff 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. The hammer needs to be stopped every time the sinking distance is measured, which will delay the test and reduce the test efficiency. The staff's verbal counting is prone to errors due to their own or external influences. When the staff is absent-minded or remembers the wrong number, data recording errors are likely to occur, 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 equipment 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 verbal counting.

[0006] The present invention is achieved by providing a land inspection device based on engineering cost, comprising a vehicle body, a lifting frame mounted on the vehicle body, a penetrator mounted on the lifting frame, an opening for the penetrator to pass through the vehicle body, a lifting mechanism mounted on the lifting frame, one end of the lifting mechanism being connected to an input end of the penetrator;

[0007] 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.

[0008] Further technical solution: the positioning mechanism includes a fixed slide rod fixedly connected to the vehicle body, the fixed slide rod is sleeved with a collar, the collar is connected to a fixed ring on a side close to the penetrator via 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 of the collar is connected to an indicator needle via a second connecting rod, a scale plate is fixedly mounted on the vehicle body, scale lines are opened on the side of the scale plate, and the indicator needle extends to the side of the scale lines;

[0009] The clamping assembly includes two first screws, which are symmetrically threaded on the fixing ring. Clamping plates are rotatably installed on the opposite ends of the two first screws. The side of the clamping plate close to the penetrator is provided with a material with a large friction coefficient.

[0010] Further technical solution: the counting mechanism includes a first mounting frame fixedly connected to the vehicle body, a vertical cylinder is fixedly installed on the first mounting frame, a piston block is slidably installed inside the cylinder, both sides of the piston block are filled with hydraulic oil, two one-way valve assemblies are provided on the piston block, and 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, and matching infrared receiving ends and infrared emitting ends are fixedly installed on the bottom of both ends of the door frame, respectively, the infrared receiving end and the infrared emitting end are connected to the counter through wires, the infrared receiving end and the infrared emitting end are respectively located on both sides of a second connecting rod, and a light shielding plate is fixedly connected to the second connecting rod;

[0011] A connecting plate is fixedly connected to the door frame, one end of the connecting plate is slidably mounted on a fixed slide rod, a tension spring is connected between the connecting plate and the collar, and initially, the shading plate is located above the infrared receiving end and the infrared emitting end.

[0012] Further technical solution: The one-way valve assembly includes a fine oil inlet hole and a coarse oil outlet hole opened on the piston block, the fine oil inlet hole and the coarse oil outlet hole pass through the piston block, a light rod is fixedly connected to the piston block, a sealing cone head is slidably installed on the light 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.

[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 the 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 of the penetration rod. The shoe head is screwed to the bottom end of the penetration rod. The guide rod is provided with an electromagnetic assembly and a core hammer from top to bottom. 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 take-up drum is rotatably mounted on the mounting plate, a pull rope is wound on the 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 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 provided on the insulating shell, a shielding ring is provided 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 onto 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 matching 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, which 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 low friction coefficient.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The present invention provides a position meter mechanism and a counting mechanism. When the penetration rod is hammered, the penetration rod drives the indicator needle to descend synchronously, thereby directly observing the descending distance of the penetrometer. Compared with the prior art method of measuring the penetrometer using a ruler, the present invention greatly shortens the measurement and calculation time and improves the detection efficiency. At the same time, when the indicator needle descends, the counting mechanism can accurately record the number of times the penetration rod descends without being affected by external factors, thereby making the counting result more accurate and improving the accuracy of the cost result.

[0022] 2. The present invention provides an outer electromagnet and an inner electromagnet so that the electromagnetic assembly can adsorb the core hammer or the guide rod, making the lifting and lowering operation of the guide rod simpler. Compared with the prior art, which requires the electromagnet to abut against the top of the guide rod before driving the guide rod to rise and fall, the present invention directly adsorbs the guide rod through the inner electromagnet, thereby directly driving the guide rod to rise and fall, making the operation of the guide rod simpler and more convenient.

[0023] 3. The present invention provides a drill bit and a movable power mechanism to cooperate therewith, so that before the test, the drill bit can be screwed to the bottom of the penetration rod, and then the power mechanism is plugged into the end of the guide rod. The power mechanism drives the drill bit to rotate, and a hole can be drilled on the ground. Manual drilling is unnecessary, which saves the physical strength of the workers, improves the drilling efficiency, and improves the detection efficiency.

[0024] 4. The present invention provides a guide mechanism. After the end of the penetration rod extends to the bottom of the vehicle body, a material guide channel can be formed through two guide plates, so that the penetration rod moves along the material guide channel, avoiding the penetration rod from being deflected, and no manual support is required, thereby avoiding injuries to workers. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0026] Figure 2 It is a schematic diagram of the overall side structure of the present invention.

[0027] Figure 3 For the present invention Figure 2 Enlarged schematic diagram of point B in the middle.

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

[0029] Figure 5 This is a schematic diagram of the overall structure of the present invention when a penetration rod is added.

[0030] Figure 6Schematic diagram of the structure of the electromagnetic component in the present invention.

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

[0032] Figure 8 For the present invention Figure 1 Enlarged schematic diagram of point A in the middle.

[0033] In the accompanying 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 assembly; 321. Insulation shell; 322. Outer electromagnet; 323. Shielding ring; 324. Inner electromagnet; 33. Core hammer; 34. Hammer base; 35. Penetration rod; 36. Boot head;

[0036] 4. Positioning mechanism; 41. First screw; 42. Fixing ring; 43. Clamping piece; 44. First connecting rod; 45. Fixed slide rod; 46. Collar; 47. Second connecting rod; 48. Indicator needle; 49. Scale plate;

[0037] 5. Counting mechanism; 51. Tension spring; 52. Connecting plate; 53. Door frame; 54. Piston rod; 55. Infrared receiver; 56. Light shield; 57. Infrared transmitter; 58. Cylinder; 59. First mounting bracket; 510. Piston block; 511. Oil inlet hole; 512. Blocking cone; 513. Oil outlet hole; 514. Compression spring; 515. Polished rod;

[0038] 6. Power mechanism; 61. Second mounting bracket; 62. First motor; 63. Snap joint; 64. Rotary cylinder; 65. Snap block; 66. Second telescopic rod;

[0039] 7. Lifting mechanism; 71. Fixed pulley; 72. Third mounting bracket; 73. Pull rope; 74. Take-up reel; 75. Second motor; 76. Mounting plate;

[0040] 8. Guide mechanism; 81. Vertical plate; 82. Second screw; 83. Guide column; 84. Guide piece;

[0041] 9. Drill bit; 10. Hole opening. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, 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 intended to limit the present invention.

[0043] The specific implementation of the present invention is described in detail below with reference to specific embodiments.

[0044] like Figures 1-8 As shown, a land inspection device based on engineering cost provided by the present invention includes a vehicle body 1, which can be a cart or a semi-trailer. A lifting frame 2 is installed on the vehicle body 1, and a penetrator 3 is installed on the lifting frame 2. An opening 10 for the penetrator 3 to pass through is opened on the vehicle body 1. A lifting mechanism 7 is also installed on the lifting frame 2, and one end of the lifting mechanism 7 is connected to the input end of the penetrator 3.

[0045] The vehicle body 1 is also equipped with a metering mechanism 4 and a counting mechanism 5. One end of the metering mechanism 4 is detachably connected to the penetrator 3. The metering mechanism 4 is used to count the distance the penetrator 3 descends. One end of the counting mechanism 5 is connected to the metering mechanism 4. The counting mechanism 5 is used to count the number of times the metering mechanism 4 descends.

[0046] The present invention provides a land detection equipment based on engineering cost. In this embodiment, the positioning mechanism 4 includes a fixed slide rod 45 fixedly connected to the vehicle body 1, and a ring 46 is sleeved on the fixed slide rod 45. The ring 46 is connected to a fixed ring 42 on one side close to the penetrator 3 through a first connecting rod 44. The fixed ring 42 is sleeved on the penetrator 3. A clamping assembly for fixing the fixed ring 42 to the penetrator 3 is installed on the fixed ring 42. The other side of the ring 46 is connected to an indicator needle 48 through a second connecting rod 47. A scale plate 49 is fixedly installed on the vehicle body 1. Scale lines are opened on the side of the scale plate 49. The scale lines have 1 cm as a small scale and 30 cm as a large scale. The indicator needle 48 extends to the side of the scale line.

[0047] The clamping assembly includes two first screws 41, which are symmetrically threaded on a fixing ring 42. Clamping plates 43 are rotatably installed on opposite ends of the two first screws 41. The side of the clamping plate 43 close to the penetrator 3 is provided with a material with a large friction coefficient, such as rubber.

[0048] By rotating the first screw 41, the first screw 41 drives the clamping piece 43 to move, so that the clamping piece 43 is clamped on the penetration rod 35, and the fixing ring 42 can be fixed to the penetration rod 35. When the penetration rod 35 is penetrated into the ground, the penetration rod 35 will drive the fixing ring 42 to descend synchronously through the clamping piece 43, and the fixing ring 42 drives the indicator needle 48 to descend through the first connecting rod 44, the collar 46 and the second connecting rod 47, and then the descending distance of the penetrometer 3 can be directly observed. Compared with the prior art of using a ruler to measure the penetrometer 3, the present invention greatly shortens the measurement and calculation time and improves the detection efficiency.

[0049] It is worth noting that when the fixing ring 42 is fixed to the penetration rod 35, it is best to make the indicator needle 48 point to the large scale line to facilitate subsequent observation and calculation.

[0050] The present invention provides a land detection equipment based on engineering cost. In this embodiment, the counting mechanism 5 includes a first mounting frame 59 fixedly connected to the vehicle body 1, and a vertical cylinder 58 is fixedly mounted on the first mounting frame 59. A piston block 510 is slidably mounted inside the cylinder 58. Both sides of the piston block 510 are filled with hydraulic oil. Two one-way valve assemblies are provided on the piston block 510, and the two one-way valve assemblies are in opposite directions. A piston rod 54 is fixedly connected to the side of the piston block 510. One end of the piston rod 54 passes through the bottom of the cylinder 58 and is fixedly connected to a door frame 53. The bottoms of both ends of the door frame 53 are respectively fixedly mounted with matching infrared receiving ends 55 and infrared emitting ends 57. The infrared receiving ends 55 and the infrared emitting ends 57 are connected to a counter (not shown) through wires. The infrared receiving ends 55 and the infrared emitting ends 57 are respectively located on both sides of a second connecting rod 47, and a light shielding plate 56 is fixedly connected to the second connecting rod 47.

[0051] A connecting plate 52 is fixedly connected to the door frame 53, and one end of the connecting plate 52 is slidably mounted on the fixed slide rod 45. A tension spring 51 is connected between the connecting plate 52 and the ring 46. Initially, the shading plate 56 is located above the infrared receiving end 55 and the infrared transmitting end 57.

[0052] Specifically, a controller and a battery are also provided on the vehicle body 1, and a counter is installed on the controller, so that the device can be moved at will and then perform detection at different locations.

[0053] The present invention provides a land detection equipment based on engineering cost. In this embodiment, the one-way valve assembly includes an oil inlet hole 511 and an oil outlet hole 513 opened on the piston block 510. The oil inlet hole 511 and the oil outlet hole 513 pass through the piston block 510. A light rod 515 is fixedly connected to the piston block 510. A sealing cone head 512 is slidably installed on the light rod 515. A compression spring 514 is connected between the sealing cone head 512 and the piston block 510. The sealing cone head 512 blocks the port of the oil inlet hole 511.

[0054] Specifically, the end of the sealing cone head 512 facing the oil inlet hole 511 is conical, and the maximum diameter of the sealing cone head 512 is smaller than the diameter of the oil outlet hole 513. The interior of the cylinder 58 is divided into two chambers by the piston block 510. The chamber where the piston rod 54 is located is recorded as the tension chamber, and the other chamber is recorded as the compression chamber.

[0055] During use, as the penetration rod 35 moves downward, the penetration rod 35 will drive the collar 46 and the second connecting rod 47 to move downward, and the light shielding plate 56 on the second connecting rod 47 will block between the infrared receiving end 55 and the infrared emitting end 57. At the same time, since the penetration rod 35 descends very quickly, the collar 46 will pull the tension spring 51 to deform. After the penetrometer 3 stops moving, under the tension of the tension spring 51, the connecting plate 52 will drive the piston rod 54 to slowly descend, so that the infrared receiving end 55 and the infrared emitting end 57 move back to the bottom of the light shielding plate 56, so that the infrared rays emitted by the infrared emitting 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 emitting end 57 constitutes a complete count, which makes the counting result more accurate and improves the accuracy of the cost result.

[0056] The 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 downward, the piston block 510 will move toward 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 will push open the blocking cone head 512 and flow into the compression chamber through the oil outlet hole 513. However, since the aperture of the oil inlet hole 511 is small, the flow rate of the hydraulic oil through the oil inlet hole 511 is slow. Therefore, the end of the tension spring 51 and the end of the piston rod 54 will move asynchronously.

[0057] When the position measuring mechanism 4 is moved upward, the piston rod 54 can be slowly pushed to move the piston rod 54 upward. Due to the incompressible nature 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 will remain unchanged. In the static state, in order to maintain the position of the piston block 510 unchanged, the elastic force of the compression spring 514 is initially made slightly greater than the sum of the weights of the piston block 510 and the piston rod 54.

[0058] The present invention provides a land inspection equipment based on engineering cost. In this embodiment, the lifting frame 2 includes a fixed guide rail frame 23 fixedly installed on the top of the vehicle body 1, and a movable mounting frame 22 is slidably mounted on the fixed guide rail frame 23. A first telescopic rod 21 is fixedly mounted on the vehicle body 1, and the movable end of the first telescopic rod 21 is fixedly connected to the movable mounting frame 22.

[0059] The present invention provides a land detection equipment based on engineering cost. In this embodiment, the penetrator 3 includes a guide rod 31, multiple penetration rods 35 and a shoe head 36. The guide rod 31 passes through and is slidably installed on the top of the movable mounting frame 22. The bottom end of the guide rod 31 is screwed to the top of the penetration rod 35, and the shoe head 36 is screwed to the bottom end of the penetration rod 35. The guide rod 31 is provided with an electromagnetic assembly 32 and a core hammer 33 from top to bottom. The side of the guide rod 31 below the core hammer 33 is fixedly connected to a hammer seat 34. The weight of the core hammer 33 is 63.5 kg.

[0060] The present invention provides a land detection equipment based on engineering cost. In this embodiment, the lifting mechanism 7 includes a mounting plate 76 fixedly mounted on the side of a movable mounting frame 22, and a take-up drum 74 is rotatably mounted on the mounting plate 76. A pull rope 73 is wound on the take-up drum 74, and one end of the pull 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, and a fixed pulley 71 is provided on the third mounting frame 72. The middle part of the pull rope 73 is wound on the fixed pulley 71. A second motor 75 is also installed on the mounting plate 76, and the output shaft of the second motor 75 is fixedly connected to the take-up drum 74.

[0061] When conducting a standard penetration test, a pit is first dug on the ground and the soil at the bottom of the pit is cleared. Then, the second motor 75 drives the take-up drum 74 to reel in the pull rope 73, so that the pull rope 73 lifts the guide rod 31 through the electromagnetic assembly 32. If 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 penetrometer 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 pull rope 73 drives the guide rod 31 to descend, so that the shoe head 36 falls to the bottom of the pit, and then one end of the position measuring mechanism 4 is fixed to the penetration rod 35.

[0062] One worker holds the penetration rod 35 while another worker operates the lifting mechanism 7. They first energize the electromagnetic assembly 32, causing it to attract the core hammer 33. The pull rope 73 is then reeled in by the take-up reel 74. The pull rope 73 drives the core hammer 33 upward through the electromagnetic assembly 32, causing the core hammer 33 to rise 76 cm. The electromagnetic assembly 32 is then de-energized, causing the core hammer 33 to naturally fall. When the core hammer 33 strikes the hammer seat 34, the shoe head 36 and the penetration rod 35 are driven into the ground by inertia.

[0063] At the same time, the penetration rod 35 drives the indicator needle 48 to descend synchronously, so that the distance the penetration rod 35 descends can be accurately calculated. At the same time, the counting mechanism 5 will also count the number of times the penetration rod 35 descends, which is convenient for the subsequent calculation of the bearing capacity, avoids errors in manual measurement and counting, and makes the detection results more accurate.

[0064] The present invention provides a land detection equipment based on engineering cost. In order to make the device easy to operate and to better control the guide rod 31, in this embodiment, the electromagnetic assembly 32 includes an insulating shell 321 sleeved on the guide rod 31, and an outer electromagnet 322 and an inner electromagnet 324 are provided on the insulating shell 321. A shielding ring 323 is provided 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. The outer electromagnet 322 and the inner electromagnet 324 are both 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 will only attract the core hammer 33. At this time, the electromagnetic assembly 32 can drive the core 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 will attract the guide rod 31. At this time, only the first telescopic rod 21 can drive the movable mounting frame 22 and the electromagnetic assembly 32 to rise synchronously, and there is no need to start the second motor 75. This makes it easier to operate the guide rod 31 when the penetration rod 35 is added and the guide rod 31 needs to rise.

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

[0067] The present invention provides a land detection device based on engineering cost. Since it is necessary to drill a hole on the ground before conducting an experiment, in order to save manual drilling time, in this embodiment, it also includes a drill bit 9. The shoe head 36 can be removed and the drill bit 9 can be screwed onto the bottom of the penetration rod 35.

[0068] The lifting frame 2 is also equipped with a power mechanism 6, which includes a second telescopic rod 66 fixedly mounted on the vehicle body 1, a rotary cylinder 64 fixedly mounted on the movable end of the second telescopic rod 66, and a second mounting frame 61 fixedly connected to the movable end of the rotary cylinder 64. A first motor 62 is fixedly mounted on the second mounting frame 61, and a card joint 63 is fixedly mounted on the output shaft of the first motor 62. A card block 65 that cooperates with the card joint 63 is fixedly mounted on the top of the guide rod 31, and the card block 65 and the card joint 63 can be plugged in.

[0069] After the drill bit 9 is drilled, the guide rod 31 is lowered and the guide rod 31 is lowered to the bottom of the drill bit 9. The guide rod 31 is then lowered to the bottom of the drill bit 9. The second mounting bracket 61 and the first motor 62 are then driven by the rotary cylinder 64 to rotate 90 degrees, and the height of the first motor 62 is adjusted by the second telescopic rod 66 so that the card joint 63 is plugged into the card block 65. The first motor 62 is then started, and 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 a hole can be drilled on the ground. After the drilling is completed, the rotary cylinder 64 drives the second mounting bracket 61 to return, and then the electromagnetic assembly 32 drives the guide rod 31 to rise, and the shoe head 36 is replaced. The test can be started without manual drilling, which saves the physical strength of the staff, improves the drilling efficiency, and improves the detection efficiency.

[0070] It is worth noting that the rotation direction of the first motor 62 is opposite to the rotation direction of the guide rod 31 to prevent the guide rod 31 and the penetration rod 35 from being loosened.

[0071] The present invention provides a land detection equipment based on engineering cost. Since the penetrometer 3 is long, the distance of the penetrometer 3 in the air is large, which makes the penetrometer 3 easy to shake. Therefore, when penetrometer 3 is penetrated into the ground, the staff needs to manually support 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 staff's hands. Therefore, in this embodiment, a guide mechanism 8 is also installed on the vehicle body 1. The guide mechanism 8 includes two vertical plates 81. The two vertical plates 81 are symmetrically installed on both sides of the penetrometer 3. Guide pieces 84 are slidably installed on the two vertical plates 81 through guide columns 83. A second screw 82 is also threadedly connected to the vertical plate 81. One end of the second screw 82 is rotatably connected to the guide piece 84. The side of the guide piece 84 close to the penetrometer 3 is made of a material with a low friction coefficient, such as polytetrafluoroethylene (PTFE).

[0072] During the test, after the end of the penetration rod 35 extends to the bottom of the vehicle body 1, the second screw 82 can be rotated. The second screw 82 drives the guide piece 84 to approach the penetrator 3 and makes the side of the guide piece 84 contact the penetrator 3. The two guide pieces 84 form a material guide channel, which prevents the penetration rod 35 from deflecting and does not require manual support, thereby avoiding injury to the staff. When drilling before the test, since the diameter of the drill bit 9 is larger than the diameter of the penetration rod 35, the two guide pieces 84 can be moved away from each other to allow the drill bit 9 to pass through.

[0073] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

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

Claims

1. A land detection device based on engineering cost, comprising a vehicle body, characterized in that: The vehicle body is provided with a lifting frame, a penetrator is provided on the lifting frame, and a lifting mechanism is also provided on the lifting frame, one end of the lifting mechanism is connected to the input end of the penetrator; The vehicle body is further provided with a position measuring mechanism and a counting mechanism, one end of the position measuring mechanism is detachably connected to the penetrometer, the position measuring mechanism is used to count the distance the penetrometer descends, and 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; The position measuring mechanism includes a fixed slide bar fixedly connected to the vehicle body, a collar is sleeved on the fixed slide bar, a fixed ring is connected to a side of the collar 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 collar is connected to an indicator needle via a second connecting rod, a scale plate is fixedly mounted on the vehicle body, and the indicator needle extends to the side of the scale plate; The counting mechanism includes 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 provided on the piston block, and 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, and matching infrared receiving ends and infrared emitting ends are fixedly mounted on the bottom of both ends of the door frame respectively, the infrared receiving end and the infrared emitting end are connected to the counter through wires, the infrared receiving end and the infrared emitting end are respectively located on both sides of a second connecting rod, and a light shielding plate is fixedly connected to the second connecting rod; A connecting plate is fixedly connected to the door frame, one end of the connecting plate is slidably mounted on a fixed slide rod, a tension spring is connected between the connecting plate and the collar, and initially, the shading plate is located above the infrared receiving end and the infrared emitting end.

2. The land detection equipment based on construction cost according to claim 1, 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 pass through the piston block, a polished rod is fixedly connected to the piston block, a blocking cone head is slidably mounted on the polished rod, a compression spring is connected between the blocking cone head and the piston block, and the blocking cone head blocks the port of the fine oil inlet hole.

3. The land detection equipment based on construction cost according to claim 1, characterized in that: The lifting frame includes a fixed guide rail frame fixedly installed 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 installed on the vehicle body, and a movable end of the first telescopic rod is fixedly connected to the movable mounting frame.

4. The land detection equipment based on construction 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 end of the penetration rod. The shoe head is screwed to the bottom end of the penetration rod. The guide rod is provided with an electromagnetic assembly and a core hammer from top to bottom. The side of the guide rod below the core hammer is fixedly connected to a hammer seat.

5. The land detection equipment based on construction cost according to claim 4 is characterized in that: The lifting mechanism includes a mounting plate fixedly mounted on the side of the movable mounting frame, a take-up drum is rotatably mounted on the mounting plate, a pull rope is wound on the 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 take-up drum.

6. The land detection equipment based on construction cost according to claim 4 is characterized in that: The electromagnetic assembly includes an insulating shell sleeved on the guide rod, an outer electromagnet and an inner electromagnet are provided on the insulating shell, a shielding ring is provided between the outer electromagnet and the inner electromagnet, and the shielding ring is made of a material that shields electromagnetic force.

7. The land detection equipment based on construction cost according to claim 4 is characterized in that: The penetrator also includes a drill bit; The lifting frame is also equipped with a power mechanism adapted thereto, and the power mechanism 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 matching the card joint fixedly mounted on the top of the guide rod, and the card block and the card joint can be plugged in.

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