A detection device and method for road and bridge construction in high-altitude permafrost areas of plateaus

Abstract

The present invention relates to the field of construction detection technology, and specifically discloses a detection device and method for road and bridge construction in a high-altitude permafrost area on a plateau. The device comprises a vehicle frame, a paint box is arranged on the top of the vehicle frame, and two colors of paint are arranged inside the paint box. The detection device for road and bridge construction also comprises a detection component, which comprises a straight tube arranged at the bottom of the vehicle frame, a sliding sleeve on the outer wall of the straight tube, a wheel installed at the bottom of the sleeve, a first spring arranged between the sleeve and the straight tube, drip tubes for the outflow of paint are arranged on both sides of the straight tube, an inclined frame is arranged at the rear end of the two drip tubes, and the side where the two inclined frames are close to each other is inclined, and an extrusion frame is arranged at the outer wall of the sleeve corresponding to the two inclined frames. Through the cooperation of the above structures, the greater the degree of protrusion and depression, the greater the distance between the drip tube and the sleeve, so that the dripping paint will be farther away from the wheel, and the degree of protrusion and depression can be judged by observing the lines of paint dripping on the roadbed.

Description

Technical Field

[0001] The present invention relates to the field of construction detection technology, and in particular to a detection device and method for road and bridge construction in plateau and high-altitude permafrost areas. Background Art

[0002] Plateau permafrost refers to various rocks and soils below zero degrees Celsius and containing ice. Seasonal permafrost is permafrost that lasts from half a month to several months or perennially. Constructing engineering structures in permafrost areas faces two major dangers: frost heave and thaw settlement. During the construction of seasonal road bases, in order to reduce the risks of frost heave and thaw settlement of plateau permafrost, the surface permafrost needs to be replaced. The over-excavation and replacement depth of seasonal permafrost is generally 80cm. The replacement material is coarse-grained gravel. Coarse-grained gravel has good permeability and reduces the harm caused by frost heave. After replacement, it is compacted. After the replacement is completed, a period of time is allowed to reserve a settlement period before reinforcement measures are taken.

[0003] When constructing roads and bridges in permafrost areas on the plateau, it is crucial to strictly test the flatness of the replacement gravel layer. The flatness of the replacement gravel directly affects the temperature distribution on the roadbed surface. If the surface is uneven, water or snow will easily accumulate in the depressions, forming "heat pockets" that accelerate the lower permafrost to absorb heat and melt. Therefore, during construction, a flatness detection device is needed to detect the flatness of the replacement gravel layer in the high-altitude permafrost areas of the plateau, identify uneven potholes, and carry out reinforcement construction there.

[0004] For example, the "Road Flatness Detection Device and Method for Road Traffic" with publication number "CN118814576A" uses the compression block of the lever to squeeze out different pigments from the material box and automatically mark the uneven areas of the road surface, which can facilitate the subsequent repair of uneven areas. Although the above scheme can mark the uneven areas of the roadbed, it cannot make different marks for potholes of different depths. It is difficult to make an intuitive judgment when judging the flatness and roughness later. In addition to potholes affecting the flatness of the roadbed, there may also be some raised positions. The above scheme is difficult to distinguish and mark the raised positions, affecting the accuracy of the flatness detection. Summary of the Invention

[0005] The purpose of the present invention is to provide a detection device and method for road and bridge construction in high-altitude permafrost areas on the plateau, which can make the distance between the drip tube and the sleeve greater when the degree of protrusion and depression is greater, so that the dripping paint will be farther away from the wheel. The degree of protrusion and depression can be judged by observing the lines of the paint dripping on the roadbed, so as to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a detection device for road and bridge construction in high-altitude permafrost areas of a plateau, comprising a frame, a paint box disposed on top of the frame, and two colors of paint disposed inside the paint box, characterized in that the detection device for road and bridge construction further comprises:

[0007] The detection assembly is arranged below the paint box and is used to detect the flatness and roughness of the roadbed. The detection assembly includes a straight tube arranged at the bottom of the frame, a sliding sleeve on the outer wall of the straight tube, a wheel installed at the bottom of the sleeve, a first spring arranged between the sleeve and the straight tube, drip tubes for the outflow of paint are arranged on both sides of the straight tube, and a tilting frame is arranged at the rear end of the two drip tubes. The two tilting frames are arranged at an angle on the side close to each other, and an extrusion frame is arranged on the outer wall of the sleeve corresponding to the two tilting frames. When the roadbed is uneven, the sleeve moves up and down, and the extrusion frame presses the tilting frame to make the drip tube move away from the sleeve, so that the bottom opening of the drip tube is aligned with a different position;

[0008] The pipe part is arranged at the bottom of the paint box and is used to guide the two colors of paint into the drip pipe;

[0009] The opening and closing component is arranged below the paint box and is used to control whether the paint drips. The paint drips when the drip tube is away from the sleeve.

[0010] Preferably, the detection component further comprises:

[0011] The mounting frame is arranged at the bottom of the vehicle frame. The top of the outer wall of the drip tube is provided with a fixing block. The outer wall of the fixing block and the inner side of the mounting frame are both provided with magnetic blocks. The magnetic poles of the two magnetic blocks are the same on the side where they are close to each other.

[0012] Preferably, the extrusion frame is rotatably connected to a circular shaft for reducing friction near the inclined portion of the inclined frame.

[0013] Preferably, the opening and closing assembly comprises:

[0014] The fixed frame is fixed to the inner side of the bottom of the drip tube. The inner side of the fixed frame is provided with an annular groove for pigment leakage. The bottom of the annular groove is provided with a blocking block for blocking the annular groove. The rear side of the blocking block is fixedly connected to a lifting plate. A second spring is fixedly connected between the lifting plate and the drip tube.

[0015] The bending frame is fixedly connected to the rear end of the top of the straight pipe. The bottom of the bending frame is fixedly connected to a limiting plate. The thickness of the limiting plate on both sides is greater than the thickness in the middle. The bottom of the limiting plate and the bottom of the thicker position on both sides are transitioned by an inclined setting.

[0016] Preferably, a sealing gasket is fixedly connected to the bottom of the fixed frame to ensure the sealing between the annular groove and the blocking block when the blocking block blocks the annular groove.

[0017] Preferably, the bending frame passes through the extrusion frame, and the extrusion frame slides with the bending frame.

[0018] Preferably, the detection device for road and bridge construction further includes:

[0019] The expansion assembly is arranged at the bottom of the drip tube. The expansion assembly includes a connecting frame fixedly connected to the bottom of the drip tube. The interior of the connecting frame is fixedly connected to an air cylinder. The interior of the air cylinder is provided with a piston plate. The top of the piston plate is fixedly connected to a lifting rod. The top of the lifting rod is fixedly connected to the bottom of the lifting plate. An air injection pipe is fixedly connected to the bottom of the ring side of the air cylinder. The end of the air injection pipe away from the air cylinder is inserted into the interior of the drip tube and is fixedly connected to an elastic bag. The elastic bag is located above the fixed frame.

[0020] Preferably, elastic strips are fixedly connected in an annular row to the top of the inner wall of the drip tube, and an elastic film is fixedly connected between the outside of the plurality of elastic strips and the inner wall of the drip tube.

[0021] A road and bridge construction detection method comprises the following steps:

[0022] S1. Judgment: When the roadbed is uneven, the casing moves up and down;

[0023] S2, drainage, when the sleeve moves up and down, the extrusion frame squeezes the tilt frame to make the drip tube away from the sleeve, and the discharge of pigment is controlled by the action of the opening and closing components

[0024] Preferably, the detection device for road and bridge construction further includes:

[0025] The blow-off assembly is arranged at the bottom of the drip tube. The blow-off assembly includes an exhaust pipe fitting fixedly plugged into the top of the air cylinder. The exhaust pipe fitting is located outside the drip tube and is fixedly connected to an elastic airbag. An electromagnetic valve is installed inside the exhaust pipe fitting. The end of the exhaust pipe fitting away from the air cylinder extends into the interior of the drip tube. The elastic airbag is connected to the interior of the exhaust pipe fitting. A distance sensor is installed on the inner wall of the drip tube below the block.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] 1. By coordinating the detection component and the opening and closing component, the greater the degree of protrusion and depression, the greater the distance between the drip tube and the casing, so that the dripping paint will be further away from the wheel. The degree of protrusion and depression can be judged by observing the lines of paint dripping on the roadbed;

[0028] 2. Through the cooperation of the detection component and the opening and closing component, different colors of pigments can be introduced into the drip tube on the left and the drip tube on the right, and the convex or concave state can be intuitively judged, thereby improving the detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0030] Figure 1 It is an overall side structural view of the present invention;

[0031] Figure 2 Schematic diagram of the partial structure of the paint box of the present invention;

[0032] Figure 3 It is a partial side view structural diagram of the paint box of the present invention;

[0033] Figure 4 It is a schematic diagram of the local structure of the sleeve of the present invention;

[0034] Figure 5 Schematic diagram of the rear view of the casing of the present invention;

[0035] Figure 6 Schematic diagram of the half-section structure of the sleeve of the present invention;

[0036] Figure 7 It is a partial structural schematic diagram of the extrusion frame of the present invention;

[0037] Figure 8 It is a partial half-section structural schematic diagram of the drip tube of the present invention;

[0038] Figure 9 It is a partial rear view structural diagram of the limiting plate of the present invention;

[0039] Figure 10 It is a partial side cross-sectional structural schematic diagram of the drip tube of the present invention;

[0040] Figure 11 A schematic diagram of a half-section structure of the mounting frame of the present invention;

[0041] Figure 12 It is a schematic diagram of the half-section structure of the gas cylinder of the present invention.

[0042] Description of reference numerals:

[0043] 1. Frame; 2. Paint box; 3. Pipe fittings; 4. Detection assembly; 41. Straight pipe; 42. Sleeve; 43. Wheel; 44. First spring; 45. Drip tube; 46. Tilting frame; 47. Extrusion frame; 48. Mounting frame; 49. Fixed block; 410. Magnetic block; 5. Opening and closing assembly; 51. Fixed frame; 52. Ring groove; 53. Block; 54. Lifting plate; 55. Bending frame; 56. Limiting plate; 57. Second spring; 6. Expansion assembly; 61. Connecting frame; 62. Air cylinder; 63. Piston plate; 64. Lifting rod; 65. Air injection pipe; 66. Elastic bag; 7. Elastic strip; 8. Elastic membrane; 9. Blow-off assembly; 91. Exhaust pipe fitting; 92. Elastic air bag; 93. Solenoid valve; 10. Round shaft; 11. Sealing gasket; 12. Distance sensor. DETAILED DESCRIPTION

[0044] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0045] Example 1: Please refer to Figures 1 to 11The present invention provides a technical solution: a detection device for road and bridge construction in high-altitude permafrost areas of the plateau, comprising a frame 1, a paint box 2 fixed on the top of the frame 1, and two colors of paint arranged inside the paint box 2. The detection device for road and bridge construction also includes a detection component 4 arranged below the paint box 2 for detecting the flatness and roughness of the roadbed. The detection component 4 includes a straight tube 41 fixed to the bottom of the frame 1, a sliding sleeve 42 on the outer wall of the straight tube 41, a wheel 43 installed at the bottom of the sleeve 42, a first spring 44 fixed between the sleeve 42 and the straight tube 41, drip tubes 45 for pigment outflow are arranged on both sides of the straight tube 41, an inclined frame 46 is fixed at the rear end of the two drip tubes 45, the two inclined frames 46 are inclined on the side close to each other, and the outer wall of the sleeve 42 is fixed with an extrusion rod corresponding to the two inclined frames 46. When the roadbed is uneven, the sleeve 42 moves up and down, and the extrusion frame 47 presses the tilting frame 46 to make the drip tube 45 move away from the sleeve 42, so that the bottom opening of the drip tube 45 is aligned with different positions. The detection device for road and bridge construction also includes a pipe member 3 fixedly plugged into the bottom of the paint box 2, which is used to introduce two colors of paint into the drip tube 45. The interior of the paint box 2 is provided with a partition, which is used to separate the two colors of paint. The pipe member 3 is provided with two groups, and the tops of the two pipe members 3 are respectively inserted into the paint box 2 on both sides of the partition. One of the pipe members 3 is connected to the drip tube 45 on the left, and the other pipe member 3 is connected to the drip tube 45 on the right, and the position of the pipe member 3 near the top of the drip tube 45 is made of a hose material, so that the pipe member 3 does not affect the movement of the drip tube 45.

[0046] The detection component 4 also includes a mounting frame 48 fixed to the bottom of the frame 1, a fixed block 49 is fixedly connected to the top of the outer wall of the drip tube 45, and a magnetic block 410 is fixed to the outer wall of the fixed block 49 and the inner side of the mounting frame 48. The magnetic poles of the two magnetic blocks 410 are the same on the side close to each other, and the extrusion frame 47 is rotatably connected to the inclination of the tilting frame 46 to reduce friction. The detection device for road and bridge construction also includes an opening and closing component 5 arranged under the paint box 2 to control whether the paint drips. When the drip tube 45 is away from the sleeve 42, the paint drips. The opening and closing component 5 includes a fixed frame 51 fixed to the inner side of the bottom of the drip tube 45, and the inner side of the fixed frame 51 is provided with an annular groove 52 for the leakage of the paint. The bottom of 52 is provided with a block 53 for blocking the annular groove 52, and a lifting plate 54 is fixedly connected to the rear side of the block 53, and a second spring 57 is fixedly connected between the lifting plate 54 and the drip tube 45. The lifting plate 54 moves up and down with the block 53 to control whether the block 53 blocks the annular groove 52, thereby controlling whether the paint is discharged. A bayonet is slidably connected to the inside of the sleeve 42, and a bayonet is provided in the straight tube 41 at the position corresponding to the bayonet. When the device is not applicable, the bayonet is inserted into the bayonet hole. At this time, the bottom of the wheel 43 is at the same height as the bottom of the wheel mounted on the frame 1, and the first spring 44 is in a compressed state. At this time, the two extrusion frames 47 do not squeeze the tilting frame 46, so that no paint will be discharged at this time.

[0047] The opening and closing assembly 5 also includes a bent frame 55 fixedly connected to the rear end of the top of the straight tube 41. The bottom of the bent frame 55 is fixedly connected to a limiting plate 56. The thickness on both sides of the limiting plate 56 is greater than the thickness in the middle. The bottom of the limiting plate 56 and the bottom of the position with larger thickness on both sides are transitioned by an inclined setting. The bottom of the fixed frame 51 is fixedly connected to a sealing gasket 11. When the block 53 blocks the annular groove 52, the sealing between the annular groove 52 and the block 53 is ensured. The bent frame 55 passes through the extrusion frame 47, and the extrusion frame 47 slides with the bent frame 55. The lifting plate 54 is rotatably connected to the position of the inclined transition near the bottom of the limiting plate 56 to reduce friction.

[0048] By adopting the above technical solution, when in use, the device is placed on the roadbed and is pulled out from the locking hole opened in the straight tube 41 through the locking pin. At this time, under the elastic force of the first spring 44, the bottom of the wheel 43 will be close to the roadbed surface. When the roadbed is flat, the two extrusion frames 47 are at a certain distance from the inclined part of the inclined frame 46 and do not squeeze the inclined frame 46, so that the two drip tubes 45 are both located close to the straight tube 41. At this time, the blocking block 53 blocks the annular groove 52, and the two colors of pigments do not fall.

[0049] It should be noted that when the bottom of the wheel 43 contacts the flat roadbed, the two extrusion frames 47 are at a certain distance from the inclined position of the tilting frame 46. When the flatness changes slightly, the extrusion frame 47 cannot squeeze the tilting frame 46, causing the paint to be discharged.

[0050] During the inspection, the frame 1 is moved at a uniform speed by the external tractor. As the frame 1 moves, when the detection component 4 reaches the recessed pothole position, the bottom of the wheel 43 enters the recessed pothole. At this time, under the elastic force of the first spring 44, the sleeve 42 can move downward with the extrusion frame 47, so that the extrusion frame 47 at the bottom squeezes the tilting frame 46 on the right side. At this time, under the action of the tilting frame 46, the tilting frame 46 on the right side can move with the drip tube 45 on the right side to the right. In this process, relative movement occurs between the lifting plate 54 and the limiting plate 56. The rotating shaft at the lifting plate 54 passes through the transition tilting point to make the lifting plate 54 reach the bottom of the position where the thickness of the limiting plate 56 is larger. At this time, the lifting plate 54 moves downward with the blocking block 53, so that the blocking block 53 does not block the annular groove 52, and the paint is discharged and falls, which makes it easy to judge that the place is a recessed pothole.

[0051] When the detection component 4 reaches the protruding position, the sleeve 42 moves upward with the extrusion frame 47, so that the extrusion frame 47 on the upper side squeezes the inclined frame 46 on the left side. At this time, under the action of the inclined part of the inclined frame 46, the inclined frame 46 on the left side can move to the right with the drip tube 45 on the left side. During this process, the lifting plate 54 reaches the bottom of the position where the thickness of the limiting plate 56 is larger. At this time, the lifting plate 54 moves downward with the blocking block 53, so that the blocking block 53 does not block the annular groove 52, and the pigment is discharged and falls.

[0052] When the detection component 4 returns to a flat position, under the action of two magnetic blocks 410 with the same magnetic poles on one side, the fixed block 49 slides along the inside of the mounting frame 48 and restores the drip tube 45. At this time, under the elastic force of the second spring 57, the lifting plate 54 moves upward with the blocking block 53 to restore, thereby sealing the annular groove 52.

[0053] It should be noted that the drip tube 45 on the left and the drip tube 45 on the right are filled with pigments of different colors, which can intuitively determine whether it is a convex or concave state, thereby improving the accuracy of detection.

[0054] It should be noted that when the degree of protrusion and depression is greater, the distance between the drip tube 45 and the sleeve 42 is greater, so that the dripping paint will be farther away from the wheel 43. The degree of protrusion and depression can be judged by observing the lines of paint dripping on the roadbed.

[0055] It should be noted that the bottom of the drip pipe 45 is relatively close to the ground of the roadbed.

[0056] Embodiment 2: The technical solution of this embodiment is different from that of embodiment 1 in that: Figure 5 、 Figure 6 and Figures 8 to 12 The inspection device for road and bridge construction also includes an expansion assembly 6 configured at the bottom of the drip tube 45. The expansion assembly 6 includes a connecting frame 61 fixedly connected to the bottom of the drip tube 45. The interior of the connecting frame 61 is fixedly connected to an air cylinder 62. A piston plate 63 is configured inside the air cylinder 62. The top of the piston plate 63 is fixedly connected to a lifting rod 64. The top of the lifting rod 64 is fixedly connected to the bottom of the lifting plate 54. An air injection pipe 65 is fixedly inserted into the bottom of the ring side of the air cylinder 62. The end of the air injection pipe 65 away from the air cylinder 62 is inserted into the interior of the drip tube 45 and is fixedly connected to an elastic bag 66. The elastic bag 66 is located above the fixed frame 51. The elastic bag 66 is made of elastic rubber material. The lifting rod 64 is slidably connected to the air cylinder 62.

[0057] By adopting the above technical solution, in actual use, the pigment is usually relatively viscous. When the detection component 4 reaches a concave or convex position, as the lifting plate 54 moves downward with the block 53 so that the block 53 does not block the annular groove 52, the pigment may not be able to flow downward in time due to its own viscosity, resulting in the pigment not being able to make marks in time, thereby affecting the accuracy of the roadbed flatness and roughness inspection. Therefore, this solution provides an expansion component 6.

[0058] When the lifting plate 54 moves downward with the block 53, the lifting plate 54 also moves downward with the lifting rod 64 and the piston plate 63, so that the space inside the air cylinder 62 below the piston plate 63 becomes smaller, so that air enters the elastic bag 66 through the air injection pipe 65. This increases the air pressure inside the elastic bag 66 and expands it, squeezing the pigment inside the drip tube 45. Due to the rapid expansion of the elastic bag 66, the pressure of the pigment inside the drip tube 45 increases instantly, which is conducive to the rapid discharge of the pigment from the bottom of the drip tube 45, reducing the situation where the pigment itself is viscous and cannot flow downward in time, thereby improving the accuracy of roadbed flatness and roughness detection.

[0059] It should be noted that when the lifting plate 54 moves upward with the blocking block 53 to reset, the lifting plate 54 moves upward with the lifting rod 64 and the piston plate 63, and at this time the elastic bag 66 contracts under the action of its own elastic force.

[0060] The top of the inner wall of the drip tube 45 is fixedly connected with elastic strips 7 in a circular row, and an elastic film 8 is fixedly connected between the outer parts of the elastic strips 7 and the inner wall of the drip tube 45 .

[0061] By adopting the above technical solution, in the initial state, the bottom opening of the elastic membrane 8 can smoothly pass the pigment, ensuring that the pigment can enter the bottom position of the drip tube 45 due to gravity. When the elastic capsule 66 expands rapidly, since the elastic capsule 66 occupies the space inside the drip tube 45, under the action of the pressure of the liquid, the elastic strip 7 and the elastic membrane 8 are deformed, so that the opening of the elastic membrane 8 becomes smaller, reducing the upward flow of the pigment due to the expansion of the elastic capsule 66. Most of the pressure generated by the expansion of the elastic capsule 66 is used to discharge the liquid downward, which is further conducive to the timely downward flow of the pigment and further improves the accuracy of the roadbed flatness and roughness detection.

[0062] The detection device for road and bridge construction also includes a blow-off assembly 9 arranged at the bottom of the drip tube 45. The blow-off assembly 9 includes an exhaust pipe fitting 91 fixedly plugged into the top of the air cylinder 62. The exhaust pipe fitting 91 is located outside the drip tube 45 and is fixedly connected to an elastic airbag 92. The elastic airbag 92 is made of elastic rubber material. An electromagnetic valve 93 is installed inside the exhaust pipe fitting 91. The end of the exhaust pipe fitting 91 away from the air cylinder 62 extends into the interior of the drip tube 45. The elastic airbag 92 is connected to the interior of the exhaust pipe fitting 91. The inner wall of the drip tube 45 is located below the block 53 and is equipped with a distance sensor 12. An O-ring is installed at the connection between the air cylinder 62 and the lifting rod 64 to ensure the sealing of the area.

[0063] By adopting the above-mentioned technical solution, when the detection component 4 returns to the flat position, the lifting plate 54 moves upward to reset. At this time, the lifting plate 54 moves upward with the lifting rod 64 and the piston plate 63, so that the space inside the air cylinder 62 above the piston plate 63 becomes smaller, which is convenient for the gas to enter the exhaust pipe 91. After the gas enters the exhaust pipe 91, it is blown toward the position where the pigment is discharged, so as to blow off the sticky pigment droplets and avoid the pigment droplets from dripping in the flat position of the roadbed, which affects the judgment of the flatness and roughness, thereby avoiding affecting the accuracy of the detection.

[0064] It should be noted that, when the lifting plate 54 moves downward with the block 53, the distance sensor 12 detects the position change of the block 53, transmits the signal to the external controller, and controls the solenoid valve 93 to close. When the lifting plate 54 moves upward with the block 53 and completes the reset, the distance sensor 12 detects the position change of the block 53 and controls the solenoid valve 93 to open through the controller, so that during the upward movement of the lifting plate 54 with the lifting rod 64 and the piston plate 63, the solenoid valve 93 is in a closed state, and the gas enters the interior of the elastic airbag 92 to expand the elastic airbag 92. When the block 53 moves upward and completes the reset, the solenoid valve 93 opens. At this time, under the elastic force of the elastic airbag 92, the gas is quickly ejected from the exhaust pipe 91, and the concentrated gas blows off the adhered pigment droplets, thereby improving the effect of blowing off the pigment droplets, thereby further improving the detection accuracy.

[0065] A road and bridge construction detection method comprises the following steps:

[0066] S1. Judgment: When the detection assembly 4 reaches the recessed pit position, the bottom of the wheel 43 enters the recessed pit. At this time, under the elastic force of the first spring 44, the sleeve 42 can move the squeezing frame 47 downward, so that the squeezing frame 47 at the bottom squeezes the inclined frame 46 at the right. At this time, under the action of the inclined portion of the inclined frame 46, the inclined frame 46 at the right can move the drip tube 45 at the right to the right. When the detection assembly 4 reaches the protruding position, the sleeve 42 moves the squeezing frame 47 upward, so that the squeezing frame 47 at the top squeezes the inclined frame 46 at the left. At this time, under the action of the inclined portion of the inclined frame 46, the inclined frame 46 at the left can move the drip tube 45 at the left to the right.

[0067] S2, drainage. When the drip tube 45 moves away from the sleeve 42, the lifting plate 54 reaches the bottom of the position where the limiting plate 56 is thicker. At this time, the lifting plate 54 moves downward with the blocking block 53, so that the blocking block 53 does not block the annular groove 52, and the pigment is discharged and falls.

[0068] Working principle: Pigments of different colors are introduced into the drip tube 45 on the left and the drip tube 45 on the right, so that the state of protrusion or depression can be judged intuitively, thereby improving the accuracy of detection.

[0069] It should be noted that when the degree of protrusion and depression is greater, the distance between the drip tube 45 and the sleeve 42 is greater, so that the dripping paint will be farther away from the wheel 43. The degree of protrusion and depression can be judged by observing the lines of paint dripping on the roadbed.

[0070] When the lifting plate 54 moves downward with the block 53, the lifting plate 54 moves downward with the lifting rod 64 and the piston plate 63, so that the space inside the air cylinder 62 below the piston plate 63 becomes smaller, thereby allowing air to enter the elastic bag 66 through the air injection pipe 65. This can increase the air pressure inside the elastic bag 66 and expand it, squeezing the paint inside the drip tube 45. Due to the rapid expansion of the elastic bag 66, the pressure of the paint inside the drip tube 45 instantly increases, which is conducive to the rapid discharge of the paint from the bottom of the drip tube 45. When the elastic bag 66 expands rapidly, since the elastic bag 66 occupies the space inside the drip tube 45, under the action of the pressure of the liquid, the elastic strip 7 and the elastic membrane 8 are deformed, so that the opening of the elastic membrane 8 becomes smaller, reducing the upward flow of the paint due to the expansion of the elastic bag 66, so that most of the pressure generated by the expansion of the elastic bag 66 is used to discharge the liquid downward.

[0071] When the lifting plate 54 moves downward with the block 53, the distance sensor 12 detects the position change of the block 53, transmits the signal to the external controller, and controls the solenoid valve 93 to close. When the lifting plate 54 moves upward with the block 53 and completes the reset, the distance sensor 12 detects the position change of the block 53 and controls the solenoid valve 93 to open through the controller, so that when the lifting plate 54 moves upward with the lifting rod 64 and the piston plate 63, the solenoid valve 93 is in a closed state, and the gas enters the interior of the elastic airbag 92 to expand the elastic airbag 92. When the block 53 moves upward and completes the reset, the solenoid valve 93 opens. At this time, under the elastic force of the elastic airbag 92, the gas is quickly ejected from the exhaust pipe 91, and the concentrated gas blows off the adhered paint droplets.

[0072] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A detection device for road and bridge construction in high-altitude permafrost areas of a plateau, comprising a vehicle frame (1), a paint box (2) disposed on the top of the vehicle frame (1), and two colors of paint disposed inside the paint box (2), characterized in that: The detection device for road and bridge construction also includes: A detection component (4) is arranged below the paint box (2) and is used to detect the smoothness and roughness of the roadbed. The detection component (4) includes a straight tube (41) arranged at the bottom of the vehicle frame (1), a sliding sleeve (42) on the outer wall of the straight tube (41), a wheel (43) installed at the bottom of the sleeve (42), a first spring (44) arranged between the sleeve (42) and the straight tube (41), drip tubes (45) for the outflow of paint are arranged on both sides of the straight tube (41), a tilting frame (46) is arranged at the rear end of the two drip tubes (45), the two tilting frames (46) are arranged at an angle on the side close to each other, and an extrusion frame (47) is arranged at the outer wall of the sleeve (42) corresponding to the two tilting frames (46). When the roadbed is uneven, when the sleeve (42) moves up and down, the extrusion frame (47) presses the tilting frame (46) to make the drip tube (45) move away from the sleeve (42), so that the bottom opening of the drip tube (45) is aligned with different positions; A pipe member (3) is arranged at the bottom of the paint box (2) and is used to guide two colors of paint into the dripping pipe (45); The opening and closing assembly (5) is arranged below the paint box (2) and is used to control whether the paint drips. When the dripping tube (45) is away from the sleeve (42), the paint drips. The opening and closing assembly (5) includes a fixed frame (51) fixed to the inner side of the bottom of the dripping tube (45). The inner side of the fixed frame (51) is provided with an annular groove (52) for the paint to leak out. The bottom of the annular groove (52) is provided with a blocking block (53) for blocking the annular groove (52). The rear side of the blocking block (53) is fixedly connected to a lifting plate (54). A second spring (57) is fixedly connected between the lifting plate (54) and the dripping tube (45). The opening and closing assembly (5) includes a bent frame (55) fixedly connected to the rear end of the top of the straight tube (41), a limiting plate (56) fixedly connected to the bottom of the bent frame (55), the thickness of the limiting plate (56) on both sides is greater than the thickness in the middle, and a transition is formed between the bottom of the limiting plate (56) and the bottom of the thicker position on both sides by an inclined setting. The bottom of the fixed frame (51) is fixedly connected to a sealing gasket (11), which ensures the sealing of the annular groove (52) and the blocking block (53) when the blocking block (53) blocks the annular groove (52). The bent frame (55) passes through the extrusion frame (47), and the extrusion frame (47) and the bent frame (55) slide.

2. The detection device for road and bridge construction in plateau and high-altitude permafrost areas according to claim 1 is characterized in that: The detection component (4) further includes: The mounting frame (48) is arranged at the bottom of the vehicle frame (1), and a fixing block (49) is arranged on the top of the outer wall of the drip tube (45). The outer wall of the fixing block (49) and the inner side of the mounting frame (48) are both provided with magnetic blocks (410), and the magnetic poles of the two magnetic blocks (410) on the sides close to each other are the same.

3. The detection device for road and bridge construction in plateau and high-altitude permafrost areas according to claim 1, characterized in that: The extrusion frame (47) is rotatably connected to a circular shaft (10) for reducing friction at an inclined position close to the inclined frame (46).

4. The detection device for road and bridge construction in plateau and high-altitude permafrost areas according to claim 1, characterized in that: The detection device for road and bridge construction also includes: An expansion assembly (6) is arranged at the bottom of the drip tube (45). The expansion assembly (6) includes a connecting frame (61) fixedly connected to the bottom of the drip tube (45). The interior of the connecting frame (61) is fixedly connected to an air cylinder (62). The interior of the air cylinder (62) is provided with a piston plate (63). The top of the piston plate (63) is fixedly connected to a lifting rod (64). The top of the lifting rod (64) is fixedly connected to the bottom of the lifting plate (54). An air injection pipe (65) is fixedly connected to the bottom of the ring side of the air cylinder (62). The end of the air injection pipe (65) away from the air cylinder (62) is inserted into the interior of the drip tube (45) and fixedly connected to an elastic bag (66). The elastic bag (66) is located above the fixed frame (51).

5. The detection device for road and bridge construction in plateau and high-altitude permafrost areas according to claim 4, characterized in that: The top of the inner wall of the drip tube (45) is annularly and fixedly connected with elastic strips (7), and an elastic film (8) is fixedly connected between the outside of the plurality of elastic strips (7) and the inner wall of the drip tube (45).

6. The detection device for road and bridge construction in plateau and high-altitude permafrost areas according to claim 1, characterized in that: The detection device for road and bridge construction also includes: The blow-off assembly (9) is arranged at the bottom of the drip tube (45), and the blow-off assembly (9) includes an exhaust pipe (91) fixedly plugged into the top of the air cylinder (62). The exhaust pipe (91) is located outside the drip tube (45) and is fixedly connected to an elastic air bag (92). An electromagnetic valve (93) is installed inside the exhaust pipe (91). The end of the exhaust pipe (91) away from the air cylinder (62) extends into the interior of the drip tube (45). The elastic air bag (92) is communicated with the interior of the exhaust pipe (91). A distance sensor (12) is installed on the inner wall of the drip tube (45) below the block (53).

7. A road and bridge construction detection method, characterized by: The method is applicable to the detection device for road and bridge construction in frozen soil areas according to any one of claims 1 to 6, comprising the following steps: S1, judgment, when the roadbed is uneven, the casing (42) moves up and down; S2, liquid discharge, when the sleeve (42) moves up and down, the extrusion frame (47) squeezes the tilting frame (46) to make the drip tube (45) away from the sleeve (42), and the discharge of the pigment is controlled under the action of the opening and closing component (5).

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