A tunnel construction quality detection device in an alpine region

Abstract

The application belongs to the technical field of tunnel detection, and particularly relates to a high-cold region tunnel construction quality detection equipment, which comprises a vehicle body; a display panel is installed on one side of the vehicle body; a mounting column is slidably connected to the top of the vehicle body; a hydraulic cylinder is installed in the vehicle body, and the output end of the hydraulic cylinder is fixedly connected to the bottom of the mounting column; a mounting block is fixedly connected to one side of the mounting column through an extension assembly; a thickness measuring probe is arranged on the side of the mounting block away from the extension assembly; when the thickness of tunnel lining is detected, the vehicle body is first moved to the vicinity of the surface of the tunnel lining, the mounting column is controlled to slide on the top of the vehicle body through the hydraulic cylinder, so that the mounting block is adjusted to a proper height, and the thickness measuring probe is attached to the surface of the lining, then the vehicle body is controlled to slowly move in the tunnel, the thickness of the tunnel lining can be detected in a large area through the device, the moving process is relatively convenient and fast, and the thickness of the lining at different positions of the tunnel is obtained at one time.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of tunnel detection, and particularly relates to a tunnel construction quality detection equipment in an alpine region. BACKGROUND

[0002] Tunnel lining refers to a permanent support structure constructed along the periphery of a tunnel hole body by using reinforced concrete and other materials to prevent deformation or collapse of surrounding rock. After the lining is constructed, the construction quality of the lining needs to be detected, such as lining thickness, surface quality, waterproof performance, etc. Repair measures need to be taken in time after quality problems are found.

[0003] A tunnel lining thickness detection device is disclosed in a Chinese patent with the publication number CN211425285U, which comprises a propulsion mechanism, an electric drilling mechanism with a current display module, a ruler mechanism with a ruler and a pointer, and the ruler is arranged along the tunneling direction of the electric drilling mechanism, and the pointer is connected to the electric drilling mechanism at one end and points to the ruler at the other end. The utility model provides a tunnel lining thickness detection device, which has the characteristics of simple structure and rapid operation.

[0004] The tunnel lining thickness detection device in the prior art is inconvenient to move, and can only be detected at a fixed position. If large-area detection of the thickness of the tunnel lining is required, the detection device needs to be frequently moved to obtain the lining thickness at different positions of the tunnel, which is time-consuming and laborious in the use process.

[0005] Therefore, the application provides a tunnel construction quality detection equipment in an alpine region. SUMMARY

[0006] In order to make up for the deficiencies of the prior art and solve at least one technical problem proposed in the background art.

[0007] The technical scheme adopted by the present application to solve its technical problems is: the high-cold region tunnel construction quality detection equipment, comprising a vehicle body; a display panel is installed on one side of the vehicle body; a mounting column is slidably connected to the top of the vehicle body; a hydraulic cylinder is installed inside the vehicle body, and the output end of the hydraulic cylinder is fixedly connected to the bottom of the mounting column; a mounting block is fixedly connected to one side of the mounting column through an extension assembly; a thickness measuring probe is arranged on the side of the mounting block away from the extension assembly; the thickness measuring probe can measure the thickness of the lining through ultrasonic waves and output the measurement results through the display panel; the tunnel lining thickness detection device in the prior art is inconvenient to move, and can only be used for detection at fixed positions, if large-area detection of the thickness of the tunnel lining is required, the detection device needs to be frequently moved to obtain the lining thickness at different positions of the tunnel, which is time-consuming and laborious in use; at this time, when the lining thickness of the tunnel is detected, the vehicle body is first moved to the vicinity of the tunnel lining surface, the mounting column is controlled to slide on the top of the vehicle body through the hydraulic cylinder, so as to adjust the mounting block to an appropriate height and make the thickness measuring probe adhere to the lining surface, then the vehicle body is controlled to slowly travel inside the tunnel, so that the thickness measuring probe continuously detects the lining thickness along the travel route and outputs the measurement results through the display panel, through the device, the thickness of the tunnel lining can be detected in a large area, the movement process is relatively convenient and fast, the lining thickness at different positions of the tunnel can be obtained at one time, which is convenient for detecting the construction quality of the tunnel lining and improving the reliability of the tunnel project.

[0008] Preferably, the extension assembly comprises a sleeve and an extension rod, the sleeve is fixedly connected with the mounting column, and the extension rod is fixedly connected with the mounting block; one end of the extension rod is slidably connected inside the sleeve, and a compression spring is fixedly connected between the extension rod and the sleeve; by arranging the sleeve, the extension rod and the compression spring, when the thickness measuring probe moves on the lining surface, if the surface is uneven, the extension rod can be self-adaptively extended and retracted inside the sleeve, the adhesion between the thickness measuring probe and the lining surface is improved, and the accuracy of the measurement results is improved.

[0009] Preferably, a matching roller is rotatably connected to the side of the mounting block away from the extension rod through a support; a plurality of thickness measuring probes are arranged, and the thickness measuring probes are uniformly embedded on the circumferential surface of the matching roller; the emitting end of the thickness measuring probe faces the outside of the matching roller; by arranging a plurality of thickness measuring probes and uniformly distributing them on the surface of the matching roller, the matching roller is adhered to and rolled on the lining surface during detection, and then the plurality of thickness measuring probes intermittently contact and measure the thickness of the lining, avoiding the problem that the thickness measuring probe is always in sliding friction with the lining surface, thereby prolonging the service life of the thickness measuring probe.

[0010] Preferably, the mounting block is rotatably connected with a coating roller through a support on the side away from the telescopic rod; the coating roller is circumferentially and uniformly provided with a group of coating blocks on the circumferential surface, and the coating blocks are made of water-absorbing material; the coating blocks protrude from the surface of the coating roller, and the coating blocks are internally immersed with coupling agent; by controlling the traveling direction of the vehicle body, the coating roller is always located in front of the matching roller, and both of them are attached to and rolled on the lining surface, when the coating roller rolls, the lining will squeeze the coating blocks on the surface of the coating roller, and then the coupling agent in the coating blocks is squeezed out and applied to the lining surface, and when the matching roller rolls to this position of the lining, the air between the thickness measuring probe and the lining surface can be excluded due to the presence of the coupling agent, so that the ultrasonic wave can effectively penetrate into the lining to achieve the detection purpose.

[0011] Preferably, the coating roller is made of benign heat-conducting material; an electric heating ring is fixedly connected inside the coating roller, and the electric heating ring is powered by a power supply; due to the cold climate in the high-cold region, a thin layer of ice often covers the surface of the tunnel lining, which will affect the detection of the lining thickness, by setting the electric heating ring, the electric heating ring is powered during the detection process, and the heat generated by the electric heating ring is conducted to all parts of the coating roller, and then the ice layer on the lining surface can be melted when the coating roller rolls, thereby reducing the influence of the ice layer on the ultrasonic wave measurement and improving the accuracy of the measurement result.

[0012] Preferably, the mounting block is of hollow structure, and the mounting block is internally added with coupling agent; a liquid guide opening is formed in the position close to the coating roller of the mounting block; a liquid guide block is fixedly connected inside the liquid guide opening, and the liquid guide block is made of water-absorbing material; the coating block can contact with the liquid guide block during the rotation of the coating roller; the coupling agent in the mounting block can continuously immerse into the liquid guide block, and when the coating block contacts with the liquid guide block during the rotation of the coating roller, the coupling agent in the liquid guide block is sucked into the coating block, so as to be applied to the lining surface by the coating block in the subsequent operation, which can timely supplement the coupling agent in the coating block and avoid the interruption of the application of the coupling agent.

[0013] Preferably, a sealing cover is fixedly connected to the inner wall of the mounting block in the position close to the liquid guide opening, and the sealing cover completely covers the liquid guide opening; an electromagnetic valve is arranged in the middle of the sealing cover; by arranging the sealing cover and the electromagnetic valve, the electromagnetic valve is opened during use, and the coupling agent in the mounting block flows into the liquid guide block through the electromagnetic valve, and the electromagnetic valve is closed when not in use, thereby avoiding the waste caused by the overflow of the coupling agent in the mounting block to the outside through the liquid guide block.

[0014] Preferably, the outer side wall of the mounting block is fixedly connected with an arc-shaped pipe near the position of the coating roller, and the arc-shaped pipe is located at the side of the coating roller away from the laminating roller; an air hole is formed in the end of the arc-shaped pipe away from the mounting block; a magnetic piston is slidably connected inside the arc-shaped pipe; a tension spring is fixedly connected between the magnetic piston and the mounting block; a group of magnetic sheets are uniformly distributed on the circumferential surface of the coating roller, and the magnetic sheets can attract each other when they are close to each other; during the rotation of the coating roller, when the magnetic sheets are close to the arc-shaped pipe, an attractive force is generated on the magnetic piston, and then the magnetic piston is driven to slide inside the arc-shaped pipe through the attractive force, and the air inside the arc-shaped pipe is extruded outward through the air hole, and then the air is sprayed in front of the travel route of the coating roller, so that the impurity particles on the front lining surface are blown away, the influence of impurities on thickness measurement is reduced, and the accuracy of the measurement result is further improved; then the magnetic sheets are away from the magnetic piston, the magnetic piston is reset under the action of the tension spring, and the air is reabsorbed into the arc-shaped pipe, and the cycle is repeated.

[0015] Preferably, the magnetic sheets are located inside the coating block, and the magnetic sheets are not in direct contact with the coating roller; by arranging the magnetic sheets inside the coating block, when the magnetic sheets attract each other, the magnetic sheets can drive the coating block to deform away from the coating roller, so as to facilitate the expansion and reset of the coating block, reduce the problem that the coating block is plastically deformed and difficult to automatically reset due to long-term extrusion of the coating roller and the lining, and prolong the service life of the coating block.

[0016] Preferably, the elastic block is fixedly connected inside the coating block, and the elastic block has a hollow structure; support elastic strips are fixedly connected between the inner side walls of the elastic block; a group of guide holes are uniformly formed in the side of the elastic block away from the coating roller; by arranging the elastic block and the support elastic strips, the supporting force on the coating block is further improved, the automatic reset capability of the coating block is improved, and the coupling agent inside the coating block can enter the elastic block through the guide holes; when the coating block is extruded by the coating roller and the lining, the elastic block is also extruded synchronously, and then the coupling agent inside the elastic block is extruded outward through the guide holes; by using the guide holes with smaller diameters, the pressure can be increased when the coupling agent passes through, so as to improve the speed and force of the extrusion of the coupling agent, and increase the coating area and uniformity of the coupling agent on the lining surface.

[0017] The beneficial effects of the present application are as follows:

[0018] 1. The high-cold region tunnel construction quality detection equipment, when detecting the thickness of the tunnel lining, first moves the vehicle body to the vicinity of the tunnel lining surface, controls the mounting column to slide on the top of the vehicle body through the hydraulic cylinder, adjusts the mounting block to the appropriate height, and makes the thickness measuring probe adhere to the lining surface, then controls the vehicle body to slowly travel inside the tunnel, and the thickness measuring probe continuously detects the lining thickness on the travel route and outputs the measurement results through the display panel, which can detect the thickness of the tunnel lining in a large area, is convenient and fast to move, obtains the lining thickness at different positions of the tunnel at one time, is convenient for detecting the construction quality of the tunnel lining, and improves the reliability of the tunnel engineering.

[0019] 2. The high-cold region tunnel construction quality detection equipment, when the thickness measuring probe moves on the lining surface, if the surface is uneven, the telescopic rod can be self-adaptively telescopic in the sleeve, improves the adhesion between the thickness measuring probe and the lining surface, and thus improves the accuracy of the measurement results. BRIEF DESCRIPTION OF DRAWINGS

[0020] The application will be further described below in combination with the drawings.

[0021] Figure 1 is a perspective view of the application;

[0022] Figure 2 is a structural schematic view of the adhesion roller and the coating roller in the application;

[0023] Figure 3 is Figure 2 is a local enlarged view of A in

[0024] Figure 4 is a structural schematic view of the coating block in the application;

[0025] In the drawings: vehicle body 1, display panel 2, mounting column 3, mounting block 4, thickness measuring probe 5, sleeve 6, telescopic rod 7, adhesion roller 8, coating roller 9, coating block 10, electric heating ring 11, liquid guide block 12, sealing cover 13, electromagnetic valve 14, arc-shaped pipe 15, air hole 16, magnetic piston 17, magnetic sheet 18, elastic block 19, supporting elastic strip 20, guide hole 21. DETAILED DESCRIPTION

[0026] In order to make the technical means, creative features, purposes and effects of the application easy to understand, the application will be further described below in combination with the specific embodiments.

[0027] Embodiment one

[0028] As Figures 1 to 2As shown, the tunnel construction quality detection equipment in the high-cold region of the embodiment of the application comprises a vehicle body 1; a display panel 2 is installed on one side of the vehicle body 1; a mounting column 3 is slidably connected to the top of the vehicle body 1; a hydraulic cylinder is installed inside the vehicle body 1, and the output end of the hydraulic cylinder is fixedly connected to the bottom of the mounting column 3; a mounting block 4 is fixedly connected to one side of the mounting column 3 through an extension assembly; a thickness measuring probe 5 is arranged on the side of the mounting block 4 away from the extension assembly; the thickness measuring probe 5 can measure the thickness of the lining through ultrasonic waves and output the measurement results through the display panel 2; the tunnel lining thickness detection device in the prior art is inconvenient to move, and can usually only be used for detection at fixed positions; if it is necessary to detect the thickness of the tunnel lining on a large scale, the detection device needs to be frequently moved to obtain the lining thickness at different positions of the tunnel, and the use process is time-consuming and laborious; at this time, when the tunnel lining thickness is detected, the vehicle body 1 is first moved to the vicinity of the tunnel lining surface, the mounting column 3 is controlled to slide on the top of the vehicle body 1 through the hydraulic cylinder, the mounting block 4 is adjusted to an appropriate height, and the thickness measuring probe 5 is attached to the lining surface, then the vehicle body 1 is controlled to slowly travel inside the tunnel, and then the thickness measuring probe 5 continuously detects the lining thickness on the travel route and outputs the measurement results through the display panel 2; through the device, the thickness of the tunnel lining can be detected on a large scale, the moving process is relatively convenient and fast, the lining thickness at different positions of the tunnel can be obtained at one time, the construction quality of the tunnel lining can be conveniently detected, and the reliability of the tunnel project is improved.

[0029] The extension assembly comprises a sleeve 6 and an extension rod 7, the sleeve 6 is fixedly connected to the mounting column 3, and the extension rod 7 is fixedly connected to the mounting block 4; one end of the extension rod 7 is slidably connected inside the sleeve 6, and a compression spring is fixedly connected between the extension rod 7 and the sleeve 6; by arranging the sleeve 6, the extension rod 7 and the compression spring, when the thickness measuring probe 5 moves on the lining surface, if the surface is uneven, the extension rod 7 can be self-adaptively extended and retracted inside the sleeve 6, the attachment degree between the thickness measuring probe 5 and the lining surface is improved, and thus the accuracy of the measurement results is improved.

[0030] A matching roller 8 is rotatably connected to the side of the mounting block 4 away from the extension rod 7 through a support; a plurality of thickness measuring probes 5 are arranged, and the thickness measuring probes 5 are uniformly embedded on the circumferential surface of the matching roller 8; the emitting end of the thickness measuring probe 5 faces the outside of the matching roller 8; by arranging a plurality of thickness measuring probes 5 and uniformly distributing them on the surface of the matching roller 8, the matching roller 8 is attached to and rolled on the lining surface during the detection process, and then the plurality of thickness measuring probes 5 intermittently contact and measure the thickness of the lining, thereby avoiding the problem that the thickness measuring probe 5 is always in sliding friction with the lining surface, causing the thickness measuring probe 5 to be rapidly worn out, and prolonging the service life of the thickness measuring probe 5.

[0031] The mounting block 4, on the side away from the telescopic rod 7, is rotatably connected to a coating roller 9 via a bracket. A set of coating blocks 10 are evenly distributed around the circumference of the coating roller 9, and the coating blocks 10 are made of absorbent material. The coating blocks 10 protrude from the surface of the coating roller 9, and the inside of the coating blocks 10 is impregnated with a coupling agent. By controlling the travel direction of the vehicle body 1, the coating roller 9 is always located in front of the fitting roller 8, and both are in contact with the lining surface and roll on its surface. When the coating roller 9 rolls, the lining will squeeze the coating blocks 10 on its surface, and then the coupling agent inside the coating blocks 10 will be squeezed out and applied to the lining surface. Afterwards, when the fitting roller 8 rolls to the lining position, due to the presence of the coupling agent, the air between the thickness probe 5 and the lining surface can be eliminated, so that the ultrasonic waves can effectively penetrate into the interior of the lining to achieve the detection purpose.

[0032] The coating roller 9 is made of a heat-conducting material; an electric heating ring 11 is fixed inside the coating roller 9 and is powered by a power source; due to the cold climate in high-altitude and cold regions, the surface of the tunnel lining is often covered with a thin layer of ice, which will affect the detection of the lining thickness. By setting up the electric heating ring 11, the electric heating ring 11 is powered during the detection process, and the heat generated by the electric heating ring 11 is conducted to all parts of the coating roller 9. As the coating roller 9 rolls, it can melt the ice layer on the lining surface, reduce the influence of the ice layer on the ultrasonic measurement, and improve the accuracy of the measurement results.

[0033] like Figure 3 As shown, the mounting block 4 has a hollow structure and a coupling agent is added inside it. A liquid guide port is provided near the coating roller 9 on the mounting block 4. A liquid guide block 12 is fixed inside the liquid guide port and is made of absorbent material. During the rotation of the coating roller 9, the coating block 10 can contact the liquid guide block 12. The coupling agent inside the mounting block 4 continuously seeps into the liquid guide block 12. During the rotation of the coating roller 9, when the coating block 10 and the liquid guide block 12 come into contact, they squeeze each other, thereby drawing the coupling agent inside the liquid guide block 12 into the coating block 10. This allows the coating block 10 to apply the coupling agent to the lining surface in a timely manner, avoiding interruptions in the coupling agent application process.

[0034] A sealing cover 13 is fixedly attached to the inner wall of the mounting block 4 near the liquid guide port, and the sealing cover 13 completely covers the liquid guide port; a solenoid valve 14 is provided in the middle of the sealing cover 13; by setting the sealing cover 13 and the solenoid valve 14, when in use, the solenoid valve 14 is opened, and the coupling agent inside the mounting block 4 flows into the liquid guide block 12 through the solenoid valve 14; when not in use, the solenoid valve 14 is closed to avoid the problem of the coupling agent inside the mounting block 4 overflowing outward through the liquid guide block 12 and causing waste.

[0035] The arc-shaped pipe 15 is fixed to the outer wall of the mounting block 4 near the coating roller 9, and the arc-shaped pipe 15 is located on the side of the coating roller 9 away from the matching roller 8; the air hole 16 is arranged at the end of the arc-shaped pipe 15 away from the mounting block 4; the magnetic piston 17 is slidably connected inside the arc-shaped pipe 15; the tension spring is fixed between the magnetic piston 17 and the mounting block 4; a group of magnetic sheets 18 are uniformly distributed on the circumferential surface of the coating roller 9, and the magnetic sheets 18 and the magnetic piston 17 can attract each other when they are close to each other; during the rotation of the coating roller 9, when the magnetic sheets 18 are close to the arc-shaped pipe 15, the magnetic sheets 18 will generate an attractive force on the magnetic piston 17, and then the attractive force drives the magnetic piston 17 to slide inside the arc-shaped pipe 15, and the air inside the arc-shaped pipe 15 is extruded outward through the air hole 16, and then the air is sprayed in front of the travel route of the coating roller 9, thereby blowing away the impurity particles on the front lining surface, reducing the influence of impurities on the thickness measurement, and further improving the accuracy of the measurement result, and then the magnetic sheets 18 are away from the magnetic piston 17, and the magnetic piston 17 is reset under the action of the tension spring and the air is reabsorbed into the arc-shaped pipe 15, thereby circulating.

[0036] The magnetic sheets 18 are located inside the coating block 10, and the magnetic sheets 18 are not in direct contact with the coating roller 9; by arranging the magnetic sheets 18 inside the coating block 10, when the magnetic sheets 18 and the magnetic piston 17 attract each other, the magnetic sheets 18 can drive the coating block 10 to deform away from the coating roller 9, thereby promoting the expansion and reset of the coating block 10, reducing the problem that the coating block 10 is extruded by the coating roller 9 and the lining for a long time, causing plastic deformation and difficulty in automatic reset, prolonging the service life of the coating block 10.

[0037] Embodiment two

[0038] As shown in Figure 4 Another embodiment of the present application is shown in the comparative embodiment one, wherein the elastic block 19 is fixed inside the coating block 10, and the elastic block 19 is a hollow structure; the support elastic strips 20 are fixed between the inner walls of the elastic block 19; a group of guide holes 21 are uniformly arranged on the side of the elastic block 19 away from the coating roller 9; by arranging the elastic block 19 and the support elastic strips 20, the support force on the coating block 10 is further improved, and the ability of the coating block 10 to automatically reset is improved, and the coupling agent inside the coating block 10 will enter the inside of the elastic block 19 through the guide holes 21, when the coating block 10 is extruded by the coating roller 9 and the lining, the elastic block 19 is also extruded synchronously, and then the coupling agent inside the elastic block 19 is extruded outward through the guide holes 21, and the coupling agent can increase the pressure when passing through the guide holes 21 with smaller diameter, thereby improving the speed and force of the coupling agent extrusion, and increasing the coating area and uniformity of the coupling agent on the lining surface.

[0039] Working principle: when the tunnel lining thickness is detected, the vehicle body 1 is first moved to the surface of the tunnel lining, the mounting column 3 is controlled to slide on the top of the vehicle body 1 through the hydraulic cylinder, the mounting block 4 is adjusted to the appropriate height, and the thickness measuring probe 5 is attached to the lining surface, then the vehicle body 1 is controlled to slowly travel inside the tunnel, and the thickness measuring probe 5 continuously detects the lining thickness along the travel route, and the measurement results are output through the display panel 2, the device can detect the thickness of the tunnel lining in a large area, and the moving process is convenient and fast, the lining thickness at different positions of the tunnel is obtained at one time, the construction quality of the tunnel lining is convenient for detecting, and the reliability of the tunnel engineering is improved; the sleeve 6, the telescopic rod 7 and the compression spring are arranged, when the thickness measuring probe 5 moves on the lining surface, if the surface is uneven, the telescopic rod 7 can be self-adaptively telescopic in the sleeve 6, the attachment degree between the thickness measuring probe 5 and the lining surface is improved, and then the measurement accuracy is improved; a plurality of thickness measuring probes 5 are arranged and are uniformly distributed on the surface of the attachment roller 8, the attachment roller 8 is attached to the lining surface and rolls on the lining surface during the detection process, then the plurality of thickness measuring probes 5 are intermittently contacted with the lining and measure the thickness of the lining, the problem that the thickness measuring probe 5 is always in sliding friction with the lining surface and is rapidly worn is avoided, and the service life of the thickness measuring probe 5 is prolonged; the travel direction of the vehicle body 1 is controlled, so that the coating roller 9 is always located in front of the attachment roller 8, and the two are attached to the lining surface and roll on the surface, the lining extrudes the coating block 10 on the surface of the coating roller 9 when the coating roller 9 rolls, then the coupling agent in the coating block 10 is extruded and applied to the lining surface, and when the attachment roller 8 rolls to the position of the lining, the air between the thickness measuring probe 5 and the lining surface can be excluded due to the existence of the coupling agent, so that the ultrasonic wave can effectively penetrate into the lining to achieve the detection purpose; because the climate in the high-cold region is cold, a thin layer of ice is often covered on the surface of the tunnel lining, which affects the detection of the lining thickness, the electric heating ring 11 is arranged, power is supplied to the electric heating ring 11 during the detection process, heat generated by the electric heating ring 11 is conducted to the coating roller 9, then the ice layer on the lining surface can be melted when the coating roller 9 rolls, the influence degree of the ice layer on the ultrasonic measurement is reduced, and the measurement accuracy is improved; the coupling agent in the mounting block 4 can continuously immerse into the liquid guide block 12, the coating block 10 and the liquid guide block 12 are extruded when the coating roller 9 rotates, then the coupling agent in the liquid guide block 12 is sucked into the coating block 10, so that the coupling agent in the coating block 10 can be supplemented in time, and the problem that the coupling agent is interrupted during application is avoided; the sealing cover 13 and the electromagnetic valve 14 are arranged, the electromagnetic valve 14 is opened during use, the coupling agent in the mounting block 4 flows into the liquid guide block 12 through the electromagnetic valve 14, and the electromagnetic valve 14 is closed when not in use, so that the problem that the coupling agent in the mounting block 4 is wasted due to overflow through the liquid guide block 12 is avoided.When the magnetic sheet 18 approaches the arc-shaped tube 15 during the rotation of the coating roller 9, an attractive force is generated on the magnetic piston 17, which drives the magnetic piston 17 to slide in the arc-shaped tube 15, and air in the arc-shaped tube 15 is extruded outward through the air hole 16, and then the air is sprayed in front of the travel route of the coating roller 9, so that the impurity particles on the front lining surface are blown away, the influence of the impurities on the thickness measurement is reduced, and the accuracy of the measurement result is further improved, and then the magnetic sheet 18 moves away from the magnetic piston 17, the magnetic piston 17 is reset under the action of the tension spring, and the air is reabsorbed into the arc-shaped tube 15, and the cycle is repeated; by arranging the magnetic sheet 18 in the coating block 10, when the magnetic sheet 18 and the magnetic piston 17 attract each other, the magnetic sheet 18 can drive the coating block 10 to deform away from the coating roller 9, so as to expand and reset the coating block 10, reduce the problem that the coating block 10 is plastically deformed and difficult to reset automatically due to long-term extrusion of the coating roller 9 and the lining, and prolong the service life of the coating block 10; by arranging the elastic block 19 and the supporting elastic strip 20, the supporting force on the coating block 10 is further improved, the automatic resetting capacity of the coating block 10 is improved, and the coupling agent in the coating block 10 enters the elastic block 19 through the guide hole 21, when the coating block 10 is extruded by the coating roller 9 and the lining, the elastic block 19 is also extruded synchronously, and then the coupling agent in the elastic block 19 is extruded outward through the guide hole 21, the coupling agent can increase the pressure when passing through the guide hole 21 with a smaller diameter, so as to improve the speed and force of the coupling agent extrusion, and increase the coating area and uniformity of the coupling agent on the lining surface.

[0040] The above-mentioned front, rear, left, right, top and bottom are based on the Figure 1 The front of the device is defined as the front of the observer, the left of the observer is defined as the left, and the like.

[0041] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the scope of protection of the present application.

[0042] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A quality testing device for tunnel construction in high-altitude and cold regions, characterized in that: Includes a vehicle body (1); a display panel (2) is installed on one side of the vehicle body (1); a mounting column (3) is slidably connected to the top of the vehicle body (1); a hydraulic cylinder is installed inside the vehicle body (1), and the output end of the hydraulic cylinder is fixedly connected to the bottom of the mounting column (3); a mounting block (4) is fixedly connected to one side of the mounting column (3) through a telescopic component; a thickness measuring probe (5) is provided on the side of the mounting block (4) away from the telescopic component; the thickness measuring probe (5) can measure the thickness of the lining by ultrasonic waves and output the measurement result through the display panel (2); The telescopic assembly includes a sleeve (6) and a telescopic rod (7), and the sleeve (6) is fixedly connected to the mounting post (3), and the telescopic rod (7) is fixedly connected to the mounting block (4); one end of the telescopic rod (7) is slidably connected inside the sleeve (6), and a compression spring is fixedly connected between the telescopic rod (7) and the sleeve (6); The mounting block (4) is rotatably connected to a coating roller (9) via a bracket on the side away from the telescopic rod (7); a set of coating blocks (10) are uniformly arranged on the circumference of the coating roller (9), and the coating blocks (10) are made of water-absorbing material; the coating blocks (10) protrude from the surface of the coating roller (9), and the inside of the coating blocks (10) is impregnated with a coupling agent. An arc-shaped tube (15) is fixedly connected to the outer wall of the mounting block (4) near the coating roller (9), and the arc-shaped tube (15) is located on the side of the coating roller (9) away from the fitting roller (8); an air hole (16) is opened at the end of the arc-shaped tube (15) away from the mounting block (4); a magnetic piston (17) is slidably connected inside the arc-shaped tube (15); a tension spring is fixedly connected between the magnetic piston (17) and the mounting block (4); a set of magnetic plates (18) are evenly distributed on the circumference of the coating roller (9), and the magnetic plates (18) and the magnetic piston (17) can attract each other when they are close to each other.

2. The tunnel construction quality testing equipment for high-altitude and cold regions according to claim 1, characterized in that: The mounting block (4) is rotatably connected to a fitting roller (8) on the side away from the telescopic rod (7) via a bracket; multiple thickness measuring probes (5) are provided, and the thickness measuring probes (5) are evenly embedded on the peripheral surface of the fitting roller (8); the transmitting end of the thickness measuring probe (5) faces the outside of the fitting roller (8).

3. The tunnel construction quality testing equipment for high-altitude and cold regions according to claim 1, characterized in that: The coating roller (9) is made of a good thermally conductive material; an electric heating ring (11) is fixed inside the coating roller (9), and the electric heating ring (11) is powered by a power source.

4. The tunnel construction quality testing equipment for high-altitude and cold regions according to claim 1, characterized in that: The mounting block (4) has a hollow structure and a coupling agent is added inside the mounting block (4); a liquid guide port is provided on the mounting block (4) near the coating roller (9); a liquid guide block (12) is fixed inside the liquid guide port and the liquid guide block (12) is made of water-absorbing material; during the rotation of the coating roller (9), the coating block (10) can contact the liquid guide block (12).

5. The tunnel construction quality testing equipment for high-altitude and cold regions according to claim 1, characterized in that: A sealing cover (13) is fixed to the inner wall of the mounting block (4) near the liquid guide port, and the sealing cover (13) completely covers the liquid guide port; a solenoid valve (14) is provided in the middle of the sealing cover (13).

6. The tunnel construction quality testing equipment for high-altitude and cold regions according to claim 1, characterized in that: The magnetic sheet (18) is located inside the coating block (10), and the magnetic sheet (18) does not directly contact the coating roller (9).

7. The tunnel construction quality testing equipment for high-altitude and cold regions according to claim 1, characterized in that: An elastic block (19) is fixedly connected inside the coating block (10), and the elastic block (19) has a hollow structure; a support elastic strip (20) is fixedly connected between the inner sidewalls of the elastic block (19); a set of guide holes (21) are evenly opened on the side of the elastic block (19) away from the coating roller (9).

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