Detection device and method for road and bridge construction in plateau high-altitude frozen soil region

Abstract

The invention relates to the technical field of construction detection, and particularly discloses a detection device and method for road and bridge construction in a plateau high-altitude frozen soil region, the detection device comprises a frame, a paint box is arranged at the top of the frame, two colors of paint are arranged in the paint box, and the detection device for road and bridge construction further comprises a detection assembly, the detection assembly comprises a straight pipe arranged at the bottom of the frame, a sleeve sliding on the outer wall of the straight pipe, wheels installed at the bottom of the sleeve, a first spring arranged between the sleeve and the straight pipe, dripping pipes arranged on the two sides of the straight pipe and used for pigment outflow, inclined frames arranged at the rear ends of the two dripping pipes, and the sides, close to each other, of the two inclined frames are arranged in an inclined mode. The extrusion frames are arranged at the positions, corresponding to the two inclined frames, of the outer wall of the sleeve, and through cooperation of the structures, the larger the protruding degree and the sinking degree are, the larger the distance between the material dripping pipe and the sleeve is, so that the farther the dripped pigment is away from the wheels, and the protruding degree and the sinking degree can be judged by observing the line, dripped on a roadbed, of the pigment.

Description

Technical Field

[0001] The present invention relates to the technical field of construction inspection, and in particular to a detection device and method for road and bridge construction in plateau permafrost areas at high altitudes. Background Technique

[0002] Plateau permafrost refers to various rocks and soils with a temperature below zero degrees Celsius and containing ice. Seasonal permafrost is permafrost that lasts for half a month to several months and for many years. When constructing engineering structures in permafrost areas, there are two major risks: frost heaving and thaw settlement. When dealing with seasonal roadbeds during construction, in order to reduce the risks of frost heaving and thaw settlement of plateau permafrost, it is necessary to replace the surface permafrost. The depth of overexcavation and replacement for seasonal permafrost is generally 80 cm, and the replacement material is coarse-grained gravel. The coarse-grained gravel has good water permeability and reduces the harm caused by frost heaving. After replacement, it is compacted. After the replacement is completed, a settlement period is reserved for a period of time, and then a reinforcement measure is carried out again.

[0003] When conducting road and bridge construction in plateau permafrost areas, it is crucial to strictly detect the flatness of the replaced gravel layer. The flatness of the replaced gravel directly affects the temperature distribution on the roadbed surface. If the surface is uneven, water or snow is likely to accumulate in the depressions, forming a "thermal pocket", which accelerates the absorption of heat by the underlying permafrost and causes it to melt. Therefore, during construction, a flatness detection device is required to detect the flatness of the replaced gravel layer in plateau permafrost areas at high altitudes, find the uneven pits, and carry out reinforcement construction at these locations.

[0004] For example, in the "Road Flatness Detection Device and Method for Road Traffic" with the publication number "CN118814576A", the compression block of the dial rod is used to extrude different pigments from the material box to automatically mark the uneven places on the road surface at the same time, which can facilitate the subsequent repair of the uneven places. Although the above solution can mark the uneven places on the roadbed, it cannot make different marks for holes with different depths, and it is difficult to make an intuitive judgment when judging the flatness and roughness later. In addition to the holes affecting the flatness of the roadbed, there may also be some protruding positions, and the above solution is difficult to distinguish and mark the protruding positions, affecting the accuracy of 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 plateau permafrost areas at high altitudes, which can make the distance between the drip tube and the sleeve larger when the degree of protrusion and depression is greater, so that the dripping pigment will be farther away from the wheel. The degree of protrusion and depression can be judged by observing the lines formed by the pigment droplets on the roadbed, so as to solve the problems raised in the above background technique.

[0006] To achieve the above object, the present invention provides the following technical solution: A detection device for road and bridge construction in plateau and high altitude permafrost areas, including a vehicle frame, a paint box is configured on the top of the vehicle frame, and two colors of paint are configured inside the paint box. It is characterized in that the detection device for road and bridge construction further includes: A detection component, configured below the paint box, for detecting the flatness and roughness of the roadbed. The detection component includes a straight pipe configured at the bottom of the vehicle frame, a sliding sleeve is arranged on the outer wall of the straight pipe, wheels are installed at the bottom of the sleeve, a first spring is configured between the sleeve and the straight pipe, and drip pipes for the paint to flow out are arranged on both sides of the straight pipe. The rear ends of the two drip pipes are configured with inclined frames, and the inclined sides of the two inclined frames close to each other are inclined. Squeezing frames are configured on the outer wall of the sleeve corresponding to the two inclined frames. When the roadbed is uneven and the sleeve moves up and down, the squeezing frame acts on the inclined frame to make the drip pipe away from the sleeve, causing the bottom opening of the drip pipe to align with different positions; Pipe components, configured at the bottom of the paint box, for introducing two colors of paint into the drip pipes; An opening and closing component, configured below the paint box, for controlling whether the paint drips. When the drip pipe is away from the sleeve, the paint drips.

[0007] Preferably, the detection component further includes: An installation frame, configured at the bottom of the vehicle frame. Fixed blocks are configured at the top of the outer wall of the drip pipe, and magnetic blocks are configured on the outer wall of the fixed block and the inner side of the installation frame. The magnetic poles of the two magnetic blocks close to each other are the same.

[0008] Preferably, a round shaft for reducing friction is rotatably connected to the inclined part of the squeezing frame close to the inclined frame.

[0009] Preferably, the opening and closing component includes: A fixed frame, fixed to the inner bottom of the drip pipe. An annular groove for the paint to leak out is opened on the inner side of the fixed frame. A blocking block for blocking the annular groove is configured at the bottom of the annular groove. A lifting plate is fixedly connected to the rear side of the blocking block, and a second spring is fixedly connected between the lifting plate and the drip pipe; A bent frame, fixedly connected to the rear end of the top of the straight pipe. A limiting plate is fixedly connected to the bottom of the bent frame. The thickness of both sides of the limiting plate is greater than the middle thickness, and the bottom of the limiting plate and the bottom of the positions with greater thickness on both sides are connected through an inclined setting.

[0010] 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.

[0011] Preferably, the bent frame passes through the squeezing frame, and the squeezing frame slides with the bent frame.

[0012] Preferably, the detection device for road and bridge construction further includes: The expansion assembly is configured at the bottom of the drip tube. The expansion assembly includes a connection frame fixedly connected to the bottom of the drip tube. Inside the connection frame, a cylinder is fixedly connected. Inside the cylinder, a piston plate is configured. At the top of the piston plate, a lifting rod is fixedly connected. The top of the lifting rod is fixedly connected to the bottom of the lifting plate. At the bottom of the circumferential side of the cylinder, an injection pipe is fixedly inserted. The end of the injection pipe away from the cylinder is inserted into the drip tube and fixedly connected with an elastic bladder, and the elastic bladder is located above the fixed frame.

[0013] Preferably, at the top of the inner wall of the drip tube, elastic strips are fixedly connected in a circumferential array. Between the outer parts of the plurality of elastic strips and the inner wall of the drip tube, an elastic film is fixedly connected.

[0014] A road and bridge construction detection method includes the following steps: S1. Judgment: When the roadbed is uneven, the sleeve moves up and down. S2. Liquid discharge: When the sleeve moves up and down, the extrusion frame squeezes the inclined frame to move the drip tube away from the sleeve, and under the action of the opening and closing assembly, the pigment is controlled to be discharged. Preferably, the detection device for road and bridge construction further includes: The blowing-off assembly is configured at the bottom of the drip tube. The blowing-off assembly includes an exhaust pipe member fixedly inserted at the top of the cylinder. Outside the drip tube, the exhaust pipe member is fixedly connected with an elastic airbag. Inside the exhaust pipe member, a solenoid valve is installed. The end of the exhaust pipe member away from the cylinder extends into the drip tube. The elastic airbag is communicated with the inside of the exhaust pipe member. A distance sensor is installed on the inner wall of the drip tube below the block.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. Through the cooperation of the detection assembly and the opening and closing assembly, when the degree of protrusion and depression is greater, the distance between the drip tube and the sleeve is greater, so that the dripping pigment will be farther away from the wheel. The degree of protrusion and depression can be judged by observing the line where the pigment drops on the roadbed. 2. Through the cooperation of the detection assembly and the opening and closing assembly, different colors of pigments can be introduced into the drip tube on the left and the drip tube on the right, and the state of protrusion or depression can be intuitively judged, improving the detection accuracy. Description of the Drawings

[0016] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0017] Figure 1 It is a schematic side view structure view of the whole of the present invention; Figure 2 It is a partial structural schematic diagram of the pigment box of the present invention; Figure 3 It is a partial side view structural schematic diagram of the pigment box of the present invention; Figure 4 It is a partial structural schematic diagram of the sleeve of the present invention; Figure 5 It is a rear view structural schematic diagram of the sleeve of the present invention; Figure 6 It is a half-sectional structural schematic diagram of the sleeve of the present invention; Figure 7 It is a partial structural schematic diagram of the extrusion frame of the present invention; Figure 8 It is a partial half-sectional structural schematic diagram of the drip pipe of the present invention; Figure 9 It is a partial rear view structural schematic diagram of the limiting plate of the present invention; Figure 10 It is a partial side sectional view structural schematic diagram of the drip pipe of the present invention; Figure 11 It is a half-sectional structural schematic diagram of the installation frame of the present invention; Figure 12 It is a half-sectional structural schematic diagram of the air cylinder of the present invention.

[0018] Explanation of reference numerals: 1, vehicle frame; 2, pigment box; 3, pipeline component; 4, detection component; 41, straight pipe; 42, sleeve; 43, wheel; 44, first spring; 45, drip pipe; 46, inclined frame; 47, extrusion frame; 48, installation frame; 49, fixed block; 410, magnetic block; 5, opening and closing component; 51, fixed frame; 52, annular groove; 53, plug block; 54, lifting plate; 55, bent frame; 56, limiting plate; 57, second spring; 6, expansion component; 61, connecting frame; 62, air cylinder; 63, piston plate; 64, lifting rod; 65, injection pipe; 66, elastic capsule; 7, elastic strip; 8, elastic film; 9, blowing-off component; 91, exhaust pipe component; 92, elastic air bag; 93, solenoid valve; 10, round shaft; 11, sealing gasket; 12, distance sensor. Detailed implementation manners

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] Embodiment 1: Please refer to Figures 1 to 11, the present invention provides a technical solution: a detection device for road and bridge construction in high-altitude permafrost areas, including a vehicle frame 1. A paint box 2 is fixed on the top of the vehicle frame 1. Two colors of paint are configured inside the paint box 2. The detection device for road and bridge construction further 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 pipe 41 fixed to the bottom of the vehicle frame 1. A sliding sleeve 42 is sleeved on the outer wall of the straight pipe 41. Wheels 43 are installed at the bottom of the sleeve 42. A first spring 44 is fixed between the sleeve 42 and the straight pipe 41. Drip pipes 45 for paint to flow out are arranged on both sides of the straight pipe 41. The rear ends of the two drip pipes 45 are fixed with inclined frames 46. The sides of the two inclined frames 46 close to each other are inclined. An extrusion frame 47 is fixed on the outer wall of the sleeve 42 corresponding to the two inclined frames 46. When the sleeve 42 moves up and down due to uneven roadbed, the extrusion frame 47 acts on the inclined frame 46 to make the drip pipe 45 move away from the sleeve 42, causing the bottom openings of the drip pipes 45 to be aligned with different positions. The detection device for road and bridge construction further includes a pipe component 3 fixedly inserted into the bottom of the paint box 2 for introducing two colors of paint into the drip pipes 45. A partition is arranged inside the paint box 2 to separate the two colors of paint. There are two groups of pipe components 3. The tops of the two pipe components 3 are respectively inserted into the two sides of the paint box 2 located on both sides of the partition. One of the pipe components 3 is connected to the drip pipe 45 on the left side, and the other pipe component 3 is connected to the drip pipe 45 on the right side. And the position of the pipe component 3 close to the top of the drip pipe 45 is made of a section of flexible hose material to ensure that the pipe component 3 does not affect the movement of the drip pipe 45. The detection component 4 further includes a mounting frame 48 fixed to the bottom of the vehicle frame 1. A fixing block 49 is fixedly connected to the top of the outer wall of the drip pipe 45. Fixed magnets 410 are fixed to the outer wall of the fixing block 49 and the inner side of the mounting frame 48. The magnetic poles of the two magnets 410 on the side close to each other are the same. A round shaft 10 for reducing friction is rotatably connected to the inclined part of the extrusion frame 47 close to the inclined frame 46. The detection device for road and bridge construction further includes an opening and closing component 5 arranged below the pigment box 2 for controlling whether the pigment drips. When the drip pipe 45 is far away from the sleeve 42, the pigment drips. The opening and closing component 5 includes a fixed frame 51 fixed to the inner bottom of the drip pipe 45. An annular groove 52 for the pigment to leak out is opened in the inner side of the fixed frame 51. A plug 53 for blocking the annular groove 52 is arranged at the bottom of the annular groove 52. A lifting plate 54 is fixedly connected to the rear side of the plug 53. A second spring 57 is fixedly connected between the lifting plate 54 and the drip pipe 45. The lifting plate 54 drives the plug 53 to move up and down to control whether the plug 53 blocks the annular groove 52, so as to control whether the pigment is discharged. A latch is slidably connected inside the sleeve 42. A latch hole is opened in the straight pipe 41 corresponding to the latch. When the device is not in use, the latch is inserted into the latch hole. At this time, the bottom of the wheel 43 is at the same height as the bottom of the wheel installed on the vehicle frame 1. The first spring 44 is in a compressed state. At this time, neither of the two extrusion frames 47 squeezes the inclined frame 46, so no pigment is discharged at this time.

[0021] The opening and closing component 5 further includes a bent frame 55 fixedly connected to the rear end of the top of the straight pipe 41. A limiting plate 56 is fixedly connected to the bottom of the bent frame 55. The thickness of both sides of the limiting plate 56 is greater than that of the middle. The bottom of the limiting plate 56 is transitioned through an inclined setting with the bottom of the positions where the thickness of both sides is large. A sealing gasket 11 is fixedly connected to the bottom of the fixed frame 51 to ensure the sealing performance between the annular groove 52 and the plug 53 when the plug 53 blocks the annular groove 52. The bent frame 55 passes through the extrusion frame 47, and the extrusion frame 47 slides with the bent frame 55. A rotating shaft for reducing friction is rotatably connected to the position of the lifting plate 54 close to the inclined part of the bottom transition of the limiting plate 56.

[0022] By adopting the above technical solution, when in use, the device is placed on the roadbed. The latch is pulled out from the latch hole opened in the straight pipe 41. At this time, under the elastic force of the first spring 44, the bottom of the wheel 43 will be close to the roadbed ground. When the roadbed is in a flat state, the two extrusion frames 47 are at a certain position from the inclined part of the inclined frame 46 and do not squeeze the inclined frame 46, so that the two drip pipes 45 are both located close to the straight pipe 41 at this time. At this time, the plug 53 blocks the annular groove 52, and neither of the two colors of pigments drops.

[0023] It should be noted that when the bottom of the wheel 43 touches the flat roadbed, the two extrusion frames 47 are at a certain position from the inclined part of the inclined frame 46. When the flatness changes slightly, the extrusion frame 47 cannot extrude the inclined frame 46 to cause the paint to be discharged.

[0024] During the detection, the vehicle frame 1 moves at a constant speed through an external tractor. As the vehicle frame 1 moves, when the detection component 4 reaches the sunken pothole position, the bottom of the wheel 43 enters the sunken pothole. At this time, under the elastic force of the first spring 44, the sleeve 42 can drive the extrusion frame 47 to move downward. In this way, the lower extrusion frame 47 extrudes the inclined frame 46 on the right. At this time, under the action of the inclined part of the inclined frame 46, the inclined frame 46 on the right can drive the drip pipe 45 on the right to move to the right. During this process, relative movement occurs between the lifting plate 54 and the limiting plate 56. The rotating shaft at the lifting plate 54 reaches the bottom of the position with a larger thickness of the limiting plate 56 through the transitional inclined part. At this time, the lifting plate 54 drives the blocking block 53 to move downward accordingly, so that the blocking block 53 does not block the annular groove 52, and the paint is discharged and falls, so as to facilitate the judgment that this place is a sunken pothole.

[0025] When the detection component 4 reaches the protruding position, the sleeve 42 drives the extrusion frame 47 to move upward. In this way, the upper extrusion frame 47 extrudes the inclined frame 46 on the left. At this time, under the action of the inclined part of the inclined frame 46, the inclined frame 46 on the left can drive the drip pipe 45 on the left to move to the right. During this process, the lifting plate 54 reaches the bottom of the position with a larger thickness of the limiting plate 56. At this time, the lifting plate 54 drives the blocking block 53 to move downward accordingly, so that the blocking block 53 does not block the annular groove 52, and the paint is discharged and falls.

[0026] When the detection component 4 returns to the flat position, under the action of two magnetic blocks 410 with the same magnetic poles on the closer sides, the fixed block 49 slides inside the mounting frame 48 and drives the drip pipe 45 to reset. And at this time, under the elastic force of the second spring 57, the lifting plate 54 drives the blocking block 53 to move upward to reset, realizing the blocking of the annular groove 52.

[0027] It should be noted that the drip pipe 45 on the left and the drip pipe 45 on the right are filled with paints of different colors, which can visually judge whether it is a protruding or sunken state and improve the detection accuracy.

[0028] It should be noted that when the degree of protrusion and depression is greater, the distance between the drip pipe 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 line where the paint drops on the roadbed.

[0029] It should be noted that the bottom of the drip tube 45 is relatively close to the ground of the roadbed.

[0030] Embodiment 2: The technical solution of this embodiment is different from that of Embodiment 1 in that: as Figure 5 , Figure 6 and Figures 8 to 12 , the road and bridge construction detection device further includes an expansion assembly 6 disposed at the bottom of the drip tube 45. The expansion assembly 6 includes a connection frame 61 fixedly connected to the bottom of the drip tube 45. An air cylinder 62 is fixedly connected inside the connection frame 61. A piston plate 63 is disposed inside the air cylinder 62. A lifting rod 64 is fixedly connected to the top of the piston plate 63. The top of the lifting rod 64 is fixedly connected to the bottom of the lifting plate 54. An injection pipe 65 is fixedly inserted into the bottom of the circumferential side of the air cylinder 62. One end of the injection pipe 65 away from the air cylinder 62 is inserted into the drip tube 45 and fixedly connected with an elastic bladder 66. The elastic bladder 66 is located above the fixed frame 51. The elastic bladder 66 is made of an elastic rubber material. The lifting rod 64 is slidably connected with the air cylinder 62.

[0031] By adopting the above technical solution, in the actual use process, the pigment is usually relatively viscous. When the detection assembly 4 reaches a concave or convex position, as the lifting plate 54 drives the plug 53 downward so that the plug 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 a mark in time, thereby affecting the accuracy of the inspection of the flatness and roughness of the roadbed. Therefore, the expansion assembly 6 is provided in this solution.

[0032] When the lifting plate 54 drives the plug 53 downward, the lifting plate 54 drives the lifting rod 64 and the piston plate 63 downward, so that the space inside the air cylinder 62 below the piston plate 63 becomes smaller, so that air enters the inside of the elastic bladder 66 through the injection pipe 65. In this way, the air pressure inside the elastic bladder 66 can become larger and expand, squeezing the pigment inside the drip tube 45. Due to the rapid expansion of the elastic bladder 66, the pressure of the pigment inside the drip tube 45 instantaneously becomes larger, which is conducive to the rapid discharge of the pigment from the bottom of the drip tube 45, reducing the situation where the pigment cannot flow downward in time due to its own viscosity, thereby improving the accuracy of the inspection of the flatness and roughness of the roadbed.

[0033] It should be noted that when the lifting plate 54 drives the plug 53 upward to reset, the lifting plate 54 drives the lifting rod 64 and the piston plate 63 upward. At this time, the elastic bladder 66 contracts under the action of its own elasticity.

[0034] Elastic strips 7 are fixedly connected in a circular array at the top of the inner wall of the drip tube 45. Elastic membranes 8 are fixedly connected between the outer parts of the plurality of elastic strips 7 and the inner wall of the drip tube 45.

[0035] By adopting the above technical solution, in the initial state, the bottom opening of the elastic film 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 bladder 66 expands rapidly, since the elastic bladder 66 occupies the space inside the drip tube 45, under the pressure of the liquid, the elastic strips 7 and the elastic film 8 deform, causing the opening of the elastic film 8 to become smaller, reducing the upward flow of the pigment due to the expansion of the elastic bladder 66, so that most of the pressure generated by the expansion of the elastic bladder 66 is used to discharge the liquid downward, further facilitating the timely downward outflow of the pigment and further improving the accuracy of the subgrade flatness roughness detection.

[0036] The detection device for road and bridge construction further includes a blowing component 9 arranged at the bottom of the drip tube 45. The blowing component 9 includes an exhaust pipe member 91 fixedly inserted at the top of the air cylinder 62. The exhaust pipe member 91 is fixedly connected with an elastic air bladder 92 outside the drip tube 45. The elastic air bladder 92 is made of elastic rubber material. An electromagnetic valve 93 is installed inside the exhaust pipe member 91. The end of the exhaust pipe member 91 away from the air cylinder 62 extends into the inside of the drip tube 45. The elastic air bladder 92 is communicated with the inside of the exhaust pipe member 91. A distance sensor 12 is installed on the inner wall of the drip tube 45 below the plug 53. An O-ring is installed at the connection between the air cylinder 62 and the lifting rod 64 to ensure the sealing performance at this place.

[0037] By adopting the above 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 drives the lifting rod 64 and the piston plate 63 to move upward, making the space above the piston plate 63 inside the air cylinder 62 smaller, facilitating the entry of gas into the inside of the exhaust pipe member 91. After the gas enters the exhaust pipe member 91, it blows to the position where the pigment is discharged, facilitating the blowing off of the adhered pigment droplets, preventing the pigment droplets from dripping at the flat position of the subgrade and affecting the judgment of the flatness roughness, and further avoiding affecting the detection accuracy.

[0038] It should be noted that after the lifting plate 54 drives the plug 53 to move downward, the distance sensor 12 detects the position change of the plug 53 and transmits the signal to the peripheral controller to control the electromagnetic valve 93 to close. After the lifting plate 54 drives the plug 53 to move upward to complete the reset, when the distance sensor 12 detects the position change of the plug 53, the controller controls the electromagnetic valve 93 to open, so that during the upward movement of the lifting plate 54 with the lifting rod 64 and the piston plate 63, the electromagnetic valve 93 is in the closed state, and the gas enters the inside of the elastic air bladder 92 to make the elastic air bladder 92 expand. After the plug 53 moves upward to complete the reset, the electromagnetic valve 93 opens. At this time, under the elastic force of the elastic air bladder 92, the gas quickly sprays out from the exhaust pipe member 91, concentrating the gas to blow off the adhered pigment droplets, improving the effect of blowing off the pigment droplets, and further improving the detection accuracy.

[0039] A road and bridge construction detection method includes the following steps: S1. Judgment: When the detection component 4 reaches the sunken pothole position, the bottom of the wheel 43 enters the sunken pothole. At this time, under the elastic force of the first spring 44, the sleeve 42 can drive the extrusion frame 47 to move downward. In this way, the lower extrusion frame 47 squeezes the inclined frame 46 on the right side. At this time, under the action of the inclined part of the inclined frame 46, the inclined frame 46 on the right side can drive the drip tube 45 on the right side to move to the right. When the detection component 4 reaches the protruding position, the sleeve 42 drives the extrusion frame 47 to move upward. In this way, the upper extrusion frame 47 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 drive the drip tube 45 on the left side to move to the right. S2. Liquid 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 has a larger thickness. At this time, the lifting plate 54 drives the blocking block 53 to move downward accordingly, so that the blocking block 53 no longer blocks the annular groove 52, and the pigment drains and falls.

[0040] Working principle: The drip tube 45 on the left side and the drip tube 45 on the right side are filled with pigments of different colors, and the convex or concave state can be visually judged, improving the detection accuracy.

[0041] 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 pigment will be farther away from the wheel 43. The degree of protrusion and depression can be judged by observing the line where the pigment drops on the roadbed.

[0042] When the lifting plate 54 drives the blocking block 53 to move downward, the lifting plate 54 drives the lifting rod 64 and the piston plate 63 to move downward at the same time, making the space below the piston plate 63 inside the air cylinder 62 smaller. As a result, air enters the inside of the elastic capsule 66 through the injection pipe 65. In this way, the air pressure inside the elastic capsule 66 becomes larger and it expands, squeezing the pigment inside the drip tube 45. Due to the rapid expansion of the elastic capsule 66, the pressure of the pigment inside the drip tube 45 instantaneously becomes larger, which is conducive to the rapid discharge of the pigment from the bottom of the drip tube 45. When the elastic capsule 66 expands rapidly, since the elastic capsule 66 occupies the space inside the drip tube 45, under the pressure of the liquid, the elastic strip 7 and the elastic membrane 8 deform, making the opening of the elastic membrane 8 smaller, reducing the situation where the pigment flows upward due to the expansion of the elastic capsule 66, so that most of the pressure generated by the expansion of the elastic capsule 66 is used to discharge the liquid downward.

[0043] After the lifting plate 54 moves downward with the blocking block 53, the distance sensor 12 detects the position change of the blocking block 53, transmits a signal to the peripheral controller to control the solenoid valve 93 to close. After the lifting plate 54 moves upward with the blocking block 53 to complete the reset, when the distance sensor 12 detects the position change of the blocking block 53, the controller controls the solenoid valve 93 to open. 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 the closed state, enabling gas to enter the inside of the elastic airbag 92 to make the elastic airbag 92 expand. After the blocking block 53 moves upward to complete the reset, the solenoid valve 93 opens. At this time, under the elastic force of the elastic airbag 92, the gas quickly sprays out from the exhaust pipe fitting 91, and the concentrated gas blows off the adhered pigment droplets.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions 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 plateau permafrost areas at high altitudes, including a vehicle frame (1), a paint box (2) is arranged on the top of the vehicle frame (1), and two colors of paint are arranged inside the paint box (2), and it is characterized in that, The detection device for road and bridge construction further includes: A detection component (4), arranged below the pigment box (2), for detecting the flatness and roughness of the roadbed. The detection component (4) includes a straight pipe (41) arranged at the bottom of the vehicle frame (1). A sliding sleeve (42) is arranged on the outer wall of the straight pipe (41). Wheels (43) are installed at the bottom of the sleeve (42). A first spring (44) is arranged between the sleeve (42) and the straight pipe (41). Drip pipes (45) for the outflow of pigment are arranged on both sides of the straight pipe (41). Inclined frames (46) are arranged at the rear ends of the two drip pipes (45). The inclined sides of the two inclined frames (46) close to each other are inclined. An extrusion frame (47) is arranged on the outer wall of the sleeve (42) corresponding to the two inclined frames (46). When the roadbed is uneven and the sleeve (42) moves up and down, the extrusion frame (47) acts on the inclined frame (46) to make the drip pipe (45) away from the sleeve (42), causing the bottom openings of the drip pipes (45) to align with different positions. A pipe component (3), arranged at the bottom of the pigment box (2), for introducing two-color pigments into the drip pipes (45). An opening and closing component (5), arranged below the pigment box (2), for controlling whether the pigment drips. When the drip pipe (45) is away from the sleeve (42), the pigment drips.

2. The inspection device for road and bridge construction in plateau and high altitude permafrost areas according to claim 1, wherein, The detection component (4) further includes: An installation frame (48), arranged at the bottom of the vehicle frame (1). Fixed blocks (49) are arranged at the top of the outer wall of the drip pipe (45). Magnetic blocks (410) are arranged on the outer walls of the fixed blocks (49) and the inner sides of the installation frame (48). The magnetic poles of the two magnetic blocks (410) close to each other are the same.

3. The inspection device for road and bridge construction in plateau and high-altitude permafrost regions according to claim 1, characterized in that: A circular shaft (10) for reducing friction is rotatably connected to the inclined part of the extrusion frame (47) close to the inclined frame (46).

4. The inspection device for road and bridge construction in plateau and high-altitude permafrost regions according to claim 1, wherein, The opening and closing component (5) includes: A fixed frame (51), fixed to the inner bottom of the drip pipe (45). An annular groove (52) for the leakage of pigment is arranged inside the fixed frame (51). A plug block (53) for blocking the annular groove (52) is arranged at the bottom of the annular groove (52). A lifting plate (54) is fixedly connected to the rear side of the plug block (53). A second spring (57) is fixedly connected between the lifting plate (54) and the drip pipe (45). A bent frame (55), fixedly connected to the rear end of the top of the straight pipe (41). A limiting plate (56) is fixedly connected to the bottom of the bent frame (55). The thicknesses of both sides of the limiting plate (56) are greater than the middle thickness. The bottom of the limiting plate (56) and the bottoms of the positions with greater thickness on both sides are transitioned through an inclined setting.

5. The inspection device for road and bridge construction in plateau and high-altitude permafrost areas according to claim 4, characterized in that, A sealing gasket (11) is fixedly connected to the bottom of the fixed frame (51) to ensure the sealing between the annular groove (52) and the plug block (53) when the plug block (53) blocks the annular groove (52).

6. The inspection device for road and bridge construction in plateau and high altitude permafrost regions according to claim 4, characterized in that: The bent frame (55) passes through the extrusion frame (47), and the extrusion frame (47) slides with the bent frame (55).

7. 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 further includes: An expansion assembly (6) is arranged at the bottom of the drip pipe (45). The expansion assembly (6) includes a connection frame (61) fixedly connected to the bottom of the drip pipe (45). An air cylinder (62) is fixedly connected inside the connection frame (61). A piston plate (63) is arranged inside the air cylinder (62). A lifting rod (64) is fixedly connected to the top of the piston plate (63). The top of the lifting rod (64) is fixedly connected to the bottom of a lifting plate (54). An injection pipe (65) is fixedly inserted into the bottom of the circumferential side of the air cylinder (62). One end of the injection pipe (65) away from the air cylinder (62) is inserted into the drip pipe (45) and fixedly connected with an elastic bladder (66). The elastic bladder (66) is located above the fixed frame (51).

8. The detection device for road and bridge construction in plateau and high altitude permafrost areas according to claim 7, characterized in that: A plurality of elastic strips (7) are fixedly connected in a circumferential array at the top inner wall of the drip pipe (45). An elastic film (8) is fixedly connected between the outer parts of the plurality of elastic strips (7) and the inner wall of the drip pipe (45).

9. 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 further includes: A blowing-off assembly (9) is arranged at the bottom of the drip pipe (45). The blowing-off assembly (9) includes an exhaust pipe part (91) fixedly inserted into the top of the air cylinder (62). An elastic air bag (92) is fixedly connected to the exhaust pipe part (91) located outside the drip pipe (45). A solenoid valve (93) is installed inside the exhaust pipe part (91). One end of the exhaust pipe part (91) away from the air cylinder (62) extends into the drip pipe (45). The elastic air bag (92) is communicated with the inside of the exhaust pipe part (91). A distance sensor (12) is installed on the inner wall of the drip pipe (45) below the block (53).

10. A road and bridge construction inspection method, characterized in that: This method is applicable to the detection device for road and bridge construction in frozen soil areas described in any one of claims 1-9, and includes the following steps: S1. Judgment: When the roadbed is uneven, the sleeve (42) moves up and down; S2. Liquid drainage: When the sleeve (42) moves up and down, the extrusion frame (47) extrudes the inclined frame (46) to make the drip pipe (45) away from the sleeve (42), and the discharge of the pigment is controlled under the action of the opening and closing assembly (5).

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