Nondestructive pavement thickness detection device

Abstract

The invention discloses a nondestructive pavement thickness detection device, and belongs to the technical field of road detection equipment, the nondestructive pavement thickness detection device comprises a base and a detection mechanism, the detection mechanism comprises a support, a supporting frame, an adjusting assembly, a connecting assembly, an electromagnetic thickness gauge, a lifting assembly and a moving assembly; the lifting assembly can adjust the position of the supporting frame in the vertical direction, so that the distance between the electromagnetic thickness gauge and the ground is always kept consistent, the situation that the distance between the electromagnetic thickness gauge and the ground is changed due to shaking of the base can be effectively avoided, and the detection precision is improved. The detection distance between the electromagnetic thickness gauge and the ground can be adjusted through the adjusting assembly, the movement stability of the electromagnetic thickness gauge in the detection process can be ensured through the moving assembly, stones and dirt on the road surface can be cleaned through the cleaning assembly in the moving process, the stability of universal wheels in the moving process is ensured, and the detection accuracy is improved. And the accuracy of the detection data is further improved.

Description

Technical Field

[0001] The invention belongs to the technical field of road detection equipment, and in particular relates to a non-destructive road surface thickness detection device. Background Art

[0002] The construction thickness of cement-stabilized crushed stone subbase and base layer, asphalt concrete pavement surface layer is a key indicator of quality control during highway construction, and is also one of the main evaluation indicators for the acceptance of each structural layer, which is directly related to the quality of pavement construction. During highway construction, the thickness of the base layer and asphalt surface layer is usually controlled by loose paving thickness and loose paving coefficient, but changes in paver construction parameters, roller rolling process, material properties, etc. will affect the changes in the compaction thickness of the mixture; currently, the detection of the compaction thickness of the structural layer usually adopts the pit digging method or core drilling method. This method is a destructive test, and manual backfilling is required later. The detection efficiency is low, and it affects the appearance quality and local performance of the construction layer. Because it is a destructive test, the detection frequency is usually low. The research and development of non-destructive testing technology for pavement is increasingly receiving widespread attention at home and abroad.

[0003] The existing non-destructive pavement thickness detection device has a simple structure. It completes the pavement thickness detection by supporting the electromagnetic thickness gauge and moving the electromagnetic thickness gauge. During the actual detection process, the distance between the electromagnetic thickness gauge and the ground cannot always remain consistent. In addition, the stones or dirt on the road surface are prone to shaking during the movement process, resulting in measurement deviations and affecting the detection accuracy.

[0004] In order to avoid the above technical problems, it is necessary to provide a non-destructive road thickness detection device to overcome the above defects in the prior art. Summary of the invention

[0005] The purpose of the present invention is to provide a non-destructive road thickness detection device to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: A non-destructive road thickness detection device comprises a base and a detection mechanism, wherein the detection mechanism comprises: The bracket is fixedly mounted on the top side of the base, a limiting groove is provided in the middle of the base, a support frame is provided inside the limiting groove, a mobile frame is provided inside the support frame, an adjustment component is installed between the mobile frame and the support frame, and is used to adjust the position of the mobile frame inside the support frame, an electromagnetic thickness gauge is provided on the bottom side of the mobile frame, a connecting component is installed between the mobile frame and the electromagnetic thickness gauge, and is used to make the electromagnetic thickness gauge and the mobile frame detachably connected, and a lifting component is installed between the support frame and the bracket, which can be used to adjust the position of the support frame in the vertical direction; The four corners at the bottom of the support frame are each installed with a fixed plate, a support rod is installed on the bottom side of the fixed plate, a universal wheel is fixedly installed on the bottom side of the support rod, a moving component is installed on the bottom side of the base for driving the base to move, and a cleaning component is installed between the base and the moving component for cleaning the road surface to be inspected when the base moves.

[0007] As a further technical solution of the present invention: the adjustment component comprises: The cam is provided with a toothed structure which is adapted to move the gears of the driver and the user to move the gears. The cam is provided with a toothed structure which is adapted to move the gears of the driver and the user to move the gears. The toothed structure is adapted to move the gears of the driver and the user to move the gears.

[0008] As a further technical solution of the present invention: the connection assembly comprises: The slide groove is located on the movable frame, a connecting frame is fixedly installed on the top of the electromagnetic thickness gauge, chamfers are provided at both ends of the connecting frame, the connecting frame is slidably connected to the slide groove, the connecting frame is in a T-shape, positioning holes are provided at both ends of the connecting frame, a positioning frame is installed on the movable frame, a vertical short rod is installed on the positioning frame, a baffle is installed on the top of the short rod, the short rod passes through the positioning frame, a limiting hole is provided on the movable frame, the short rod extends into the inner side of the limiting hole, a fixing ring is installed on the outer side of the short rod, a first elastic member is sleeved on the outer side of the short rod, the first elastic member connects the fixing ring and the positioning frame, and the shape of the bottom end of the short rod is semicircular.

[0009] As a further technical solution of the present invention: the lifting assembly comprises: The cam is provided with a first end fixedly mounted on the support frame, and the second end of the first end is connected with the second support frame by the second end connecting the link to the support frame.

[0010] As a further technical solution of the present invention: the buffer assembly comprises: A limiting rod is fixedly mounted on the fixed plate and is vertically shaped, a positioning ring is sleeved on the outer side of the top end of the limiting rod, a vertical connecting plate is installed on the outer side of the positioning ring, a limiting plate is fixedly mounted on the top end of the limiting rod, a second elastic member is sleeved on the outer side of the limiting rod, the second elastic member is located between the fixed plate and the positioning ring, a buffer plate is fixedly mounted on the top end of the connecting plate, a first rotating frame is fixedly mounted on both sides of the buffer plate, a second rotating frame is installed on the bottom side of the movable plate, a cross-shaped adjusting frame is installed between the movable plate and the buffer plate, and the adjusting frame is rotatably connected to the first rotating frame and the second rotating frame.

[0011] As a further technical solution of the present invention: the mobile component comprises: The driving motor is installed on the bottom side of one end of the base, and rotating wheels are installed at both ends of the driving motor. A first limiting frame is installed at one end of the base away from the driving motor, and a long rod is installed on the first limiting frame, and rotating wheels are also installed at both ends of the long rod.

[0012] As a further technical solution of the present invention: the cleaning component comprises: The second limiting frame is installed on one end of the base close to the first limiting frame, and a transmission rod is installed on the second limiting frame. A third bevel gear is fixedly installed on one end of the transmission rod close to the long rod, and a fourth bevel gear is installed on the outer side of the long rod. The third bevel gear is meshed with the fourth bevel gear, and the transmission rod is rotatably connected to the second limiting frame, and a cleaning brush is installed in the middle of the transmission rod.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention provides a non-destructive road surface thickness detection device, wherein a bracket is fixedly installed on the base, and a lifting component is installed between the bracket and the support frame, and the position of the support frame in the vertical direction can be adjusted, so as to facilitate the electromagnetic thickness gauge to always keep the distance with the ground consistent, and can effectively prevent the shaking of the base from affecting the change of the distance between the electromagnetic thickness gauge and the ground, thereby improving the detection accuracy; the detection distance between the electromagnetic thickness gauge and the ground can be adjusted by the adjustment component to ensure the accuracy of the detection data; the electromagnetic thickness gauge can be conveniently disassembled and installed by the connection component; the stable movement of the electromagnetic thickness gauge during the detection process can be ensured by the moving component; and stones and dirt on the road surface can be cleaned by the cleaning component during the movement, thereby ensuring the stability of the universal wheel during the movement, thereby further improving the accuracy of the detection data. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the present invention.

[0015] Figure 2 It is a schematic structural diagram of the side surface of the present invention.

[0016] Figure 3 It is a schematic structural diagram of the bottom side of the present invention.

[0017] Figure 4 It is a structural schematic diagram of the lifting assembly in the present invention.

[0018] Figure 5 It is a schematic diagram of the structure between the support frame and the slide rail in the present invention.

[0019] Figure 6 It is a schematic diagram of the structure of the adjustment frame on the buffer plate in the present invention.

[0020] Figure 7 It is a schematic diagram of the structure of the buffer component in the present invention.

[0021] Figure 8 It is a schematic diagram of the structure of the inner side of the support frame in the present invention.

[0022] Fig. 9 For the present invention Figure 8 Schematic diagram of the structure enlarged at point A in the middle.

[0023] Fig.10 It is a schematic diagram of the structure of the connecting frame and the electromagnetic thickness gauge in the present invention.

[0024] In the accompanying drawings: 1-base, 2-bracket, 3-support frame, 4-movable frame, 5-adjustment component, 51-positioning plate, 52-rotating rod, 53-motor frame, 54-driving member, 55-driving rod, 56-first bevel gear, 57-second bevel gear, 6-connecting component, 61-slide, 62-connecting frame, 63-positioning hole, 64-positioning frame, 65-short rod, 66-baffle, 67-limiting hole, 68-fixing ring, 69-first elastic member, 7-lifting component, 71-movable plate, 72-slide rail, 73-rotating rod, 74-slider, 75-first hinge seat, 76-second hinge seat, 77-connecting rod, 78-fixed frame, 79-rotating Moving teeth, 70-adjusting rod, 700-handle, 8-moving assembly, 81-driving motor, 82-rotating wheel, 83-first limiting frame, 84-long rod, 9-cleaning assembly, 91-second limiting frame, 92-transmission rod, 93-third bevel gear, 94-fourth bevel gear, 95-cleaning brush, 10-buffer assembly, 101-limiting rod, 102-positioning ring, 103-connecting plate, 104-limiting plate, 105-second elastic member, 106-buffer plate, 107-first rotating frame, 108-second rotating frame, 109-adjusting frame, 11-electromagnetic thickness gauge, 12-fixed plate, 13-support rod, 14-universal wheel, 15-limiting groove. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0026] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0027] like Figures 1 to 10 As shown in the embodiment provided by the present invention, a non-destructive road thickness detection device includes a base 1 and a detection mechanism, wherein the detection mechanism includes: The bracket 2 is fixedly mounted on the top side of the base 1, a limiting groove 15 is provided in the middle of the base 1, a support frame 3 is provided inside the limiting groove 15, a mobile frame 4 is provided inside the support frame 3, an adjustment component 5 is installed between the mobile frame 4 and the support frame 3, and is used to adjust the position of the mobile frame 4 inside the support frame 3, an electromagnetic thickness gauge 11 is provided on the bottom side of the mobile frame 4, a connecting component 6 is installed between the mobile frame 4 and the electromagnetic thickness gauge 11, and is used to make the electromagnetic thickness gauge 11 and the mobile frame 4 detachably connected, and a lifting component 7 is installed between the support frame 3 and the bracket 2, which can be used to adjust the position of the support frame 3 in the vertical direction; The four corners at the bottom of the support frame 3 are each installed with a fixed plate 12, a support rod 13 is installed on the bottom side of the fixed plate 12, a universal wheel 14 is fixedly installed on the bottom side of the support rod 13, a moving component 8 is installed on the bottom side of the base 1 for driving the base 1 to move, and a cleaning component 9 is installed between the base 1 and the moving component 8 for cleaning the road surface to be inspected when the base 1 moves.

[0028] In this embodiment, a bracket 2 is fixedly mounted on the base 1, and a lifting component 7 is installed between the bracket 2 and the support frame 3, which can adjust the position of the support frame 3 in the vertical direction, so as to make the electromagnetic thickness gauge 11 always keep the distance with the ground consistent, and can effectively prevent the shaking of the base 1 from affecting the change of the distance between the electromagnetic thickness gauge 11 and the ground, thereby improving the detection accuracy. The detection distance between the electromagnetic thickness gauge 11 and the ground can be adjusted by the adjustment component 5 to ensure the accuracy of the detection data. The electromagnetic thickness gauge 11 can be conveniently disassembled and installed by the connection component 6, and the electromagnetic thickness gauge 11 can be ensured during the detection process by the moving component 8. The movement is stable, and the stones and dirt on the road surface can be cleaned by the cleaning component 9 during the movement, so as to ensure the stability of the universal wheel 14 during the movement, and further improve the accuracy of the detection data; the mobile frame 4 is horizontal, and the shape of the support frame 3 is an inverted U shape. The position of the mobile frame 4 inside the support frame 3 can be adjusted by the adjustment component 5. The fixed plate 12, the support rod 13 and the universal wheel 14 are each provided with four and divided into four groups of symmetrically distributed at the four corners of the bottom end of the support frame 3, so as to facilitate the stability of the electromagnetic thickness gauge 11 during the movement, and the lifting component 7 can ensure that the distance between the electromagnetic thickness gauge 11 and the ground is always consistent.

[0029] In one embodiment of the present invention, see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 8 , Fig. 9 and Fig.10 , the regulating component 5 comprises: A positioning plate 51 is fixedly mounted on the middle part of the bottom end of the support frame 3, a vertical rotating rod 52 is installed between the positioning plate 51 and the support frame 3, both ends of the rotating rod 52 are rotatably connected to the positioning plate 51 and the support frame 3, the rotating rod 52 passes through the moving frame 4, and the rotating rod 52 is threadedly connected to the moving frame 4, a motor frame 53 is fixedly mounted on the middle part of the top end inside the support frame 3, a driving member 54 is installed on the motor frame 53, a driving rod 55 is fixedly mounted on the output end of the driving member 54, a first bevel gear 56 is fixedly mounted on the end of the driving rod 55 away from the driving member 54, a second bevel gear 57 is fixedly mounted on the outer side of the top end of the rotating rod 52, and the first bevel gear 56 is meshed with the second bevel gear 57.

[0030] The connecting component 6 comprises: The slide groove 61 is located on the movable frame 4, and a connecting frame 62 is fixedly installed on the top of the electromagnetic thickness gauge 11. Chamfers are provided at both ends of the connecting frame 62. The connecting frame 62 is slidably connected to the slide groove 61. The shape of the connecting frame 62 is T-shaped, and positioning holes 63 are provided at both ends of the connecting frame 62. A positioning frame 64 is installed on the movable frame 4, and a vertical short rod 65 is installed on the positioning frame 64. A baffle 66 is installed on the top of the short rod 65. The short rod 65 passes through the positioning frame 64. A limiting hole 67 is provided on the movable frame 4. The short rod 65 extends into the inner side of the limiting hole 67. A fixing ring 68 is installed on the outer side of the short rod 65. A first elastic member 69 is sleeved on the outer side of the short rod 65. The first elastic member 69 connects the fixing ring 68 and the positioning frame 64. The bottom end of the short rod 65 is semicircular.

[0031] In this embodiment, the positioning plate 51 is fixedly mounted on the bottom side of the support frame 3, and a vertical rotating rod 52 is installed between the positioning plate 51 and the support frame 3. The rotating rod 52 is a threaded rod in this embodiment, and rolling bearings are installed between the two ends of the rotating rod 52 and the support frame 3 and the positioning plate 51. The rotating rod 52 passes through the moving frame 4 and is threadedly connected to the moving frame 4. When the rotating rod 52 rotates, the moving frame 4 can be driven to adjust its position on the inner side of the support frame 3. A motor frame 53 and a driving member 54 are fixedly installed in the middle of the top inner side of the support frame 3. The driving member 54 can be a rotating motor The driving member 54 is a dual-axis motor, and the two output ends of the driving member 54 are both equipped with a driving rod 55, and the driving rod 55 is fixedly equipped with a first bevel gear 56. The outer side of the top of the rotating rod 52 is equipped with a second bevel gear 57, and the first bevel gear 56 is meshed with the second bevel gear 57. The positioning plate 51, the rotating rod 52 and the second bevel gear 57 are each provided with two, and are divided into two groups and symmetrically installed on the inner side of the support frame 3. By controlling the driving member 54, the moving frame 4 can be stably moved inside the supporting frame 3, and the electromagnetic thickness gauge 11 can be further maintained stable. A slide groove 61 is provided on the bottom side of the movable frame 4, and the shape of the slide groove 61 is T-shaped. A connecting frame 62 is fixedly installed on the top side of the electromagnetic thickness gauge 11. The connecting frame 62 is slidably connected to the slide groove 61. Chamfers are provided at both ends of the connecting frame 62 to facilitate connection with the slide groove 61. A positioning frame 64 is installed on the movable frame 4. A vertical short rod 65 is provided on the positioning frame 64. The short rod 65 passes through the positioning frame 64. The bottom end of the short rod 65 passes through the limiting hole 67 on the movable frame 4. A fixing ring 68 is fixedly installed on the short rod 65. The first elastic member 69 connects the fixing ring 68 and the positioning frame 64. The first elastic member 69 can be a spring or rubber, etc. In this embodiment, the first elastic member 69 is a spring, and the shape of the bottom end of the short rod 65 is semicircular. When the connecting frame 62 extends into the inner side of the slide groove 61, the connecting frame 62 can make the short rod 65 move up to compress the first elastic member 69. When the positioning hole 63 on the connecting frame 62 and the short rod 65 are on the same axis, under the elastic force of the first elastic member 69, the short rod 65 extends into the inner side of the positioning hole 63 to limit the position of the connecting frame 62 on the moving frame 4, and completes the installation of the electromagnetic thickness gauge 11. When the electromagnetic thickness gauge 11 is disassembled, the baffle plate 66 is pulled to separate the short rod 65 from the positioning hole 63. At this time, the connecting frame 62 can be taken out from the inner side of the slide groove 61 to complete the disassembly of the electromagnetic thickness gauge 11. The operation is convenient, and the installation and disassembly of the electromagnetic thickness gauge 11 can be completed quickly, and the stability of the electromagnetic thickness gauge 11 after installation can be ensured, which is convenient for road thickness detection.

[0032] In one embodiment of the present invention, see Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 , the lifting assembly 7 comprises: The movable plate 71 is located on the top side of the bracket 2, and a buffer assembly 10 is installed between the movable plate 71 and the support frame 3. A slide rail 72 is fixedly installed on the top side of the bracket 2, a rotating rod 73 is installed on the inner side of the slide rail 72, and a slider 74 is installed on the outer side of the rotating rod 73. The slider 74 is slidably connected to the slide rail 72, and the rotating rod 73 is threadedly connected to the slider 74. A first hinge seat 75 is fixedly installed on the top side of the slider 74, and a second hinge seat 76 is fixedly installed at the bottom edge of the movable plate 71. A connecting rod 77 is installed between an articulated seat 75 and a second articulated seat 76, and both ends of the connecting rod 77 are rotatably connected to the first articulated seat 75 and the second articulated seat 76. A fixing frame 78 is fixedly installed at one end of the bracket 2, and a rotating rod 73 passes through the fixing frame 78 and is fixedly installed with a rotating tooth 79 at one end. An adjusting rod 70 is installed on the fixing frame 78, and the adjusting rod 70 is rotatably connected to the fixing frame 78. The adjusting rod 70 is cooperatively connected to the rotating tooth 79, and a handle 700 is installed at one end of the adjusting rod 70.

[0033] The buffer assembly 10 comprises: The limiting rod 101 is fixedly mounted on the fixed plate 12 and is vertically shaped. A positioning ring 102 is sleeved on the outer side of the top end of the limiting rod 101. A vertical connecting plate 103 is installed on the outer side of the positioning ring 102. A limiting plate 104 is fixedly mounted on the top end of the limiting rod 101. A second elastic member 105 is sleeved on the outer side of the limiting rod 101. The second elastic member 105 is located between the fixed plate 12 and the positioning ring 102. A buffer plate 106 is fixedly mounted on the top end of the connecting plate 103. A first rotating frame 107 is fixedly mounted on both sides of the buffer plate 106. A second rotating frame 108 is installed on the bottom side of the movable plate 71. A cross-shaped adjusting frame 109 is installed between the movable plate 71 and the buffer plate 106. The adjusting frame 109 is rotatably connected to the first rotating frame 107 and the second rotating frame 108.

[0034] In this embodiment, the movable plate 71 is located on the top side of the bracket 2, and a horizontal slide rail 72 is fixedly installed on the top side of the bracket 2. A rotating rod 73 is installed on the inner side of the slide rail 72. One end of the rotating rod 73 extends out of the slide rail 72. The rotating rod 73 is rotatably connected to the slide rail 72. A rolling bearing is installed between the rotating rod 73 and the slide rail 72. The rotating rod 73 is a threaded rod in this embodiment. A slider 74 is installed on the outer side of the rotating rod 73. The slider 74 is located on the inner side of the slide rail 72. The movable rod 73 passes through the slider 74 and is threadedly connected to the slider 74. A first hinge seat 75 is fixedly installed on the top side of the slider 74. A second hinge seat 76 is installed on the bottom side of the movable plate 71. Rolling bearings are installed between the first hinge seat 75 and the second hinge seat 76 and both ends of the connecting rod 77. The slider 74, the first hinge seat 75, the second hinge seat 76 and the connecting rod 77 are each provided with two and divided into two groups symmetrically distributed on the rotating rod 73. The rotating rod 73 is provided with two sections of threads with opposite rotation directions. When the rotating rod When 73 rotates, the two sliders 74 can be driven to move relative to each other. The rotating rod 73 extends out of the slide rail 72 and is fixedly installed with a rotating tooth 79 at one end. The rotating tooth 79 is a worm gear in this embodiment. A fixing frame 78 is also fixedly installed on the top side of the bracket 2. The rotating rod 73 passes through the fixing frame 78. A rolling bearing is installed between the rotating rod 73 and the fixing frame 78. An adjusting rod 70 is also installed on the fixing frame 78. A rolling bearing is installed between the adjusting rod 70 and the fixing frame 78. 70 is a worm in this embodiment. The handle 700 drives the adjusting rod 70 to rotate on the fixing frame 78. The adjusting rod 70 is connected with the rotating tooth 79. When the adjusting rod 70 rotates, the rotating tooth 79 can be driven to rotate, and the rotating rod 73 can be further rotated. The slide rail 72, the rotating rod 73 and the adjusting rod 70 are each provided with two. The adjusting rod 70 can simultaneously drive the two rotating rods 73 to rotate, and the moving plate 71 can be raised and lowered, so as to keep the moving plate 71 stable during the lifting process. A vertical limiting rod 101 is fixedly installed on the fixing plate 12, a positioning ring 102 is sleeved on the outer side of the top of the limiting rod 101, a connecting plate 103 is fixedly installed on the outer side of the positioning ring 102, a buffer plate 106 is fixedly installed on the top of the connecting plate 103, and a second elastic member 105 is also sleeved on the outer side of the limiting rod 101. The second elastic member 105 can be a spring or rubber, etc. In this embodiment, the second elastic member 105 is a spring. The limiting rod 101, the second elastic member 105, the limiting plate 104, the positioning ring 102 and the connecting plate 103 are each provided with four and divided into four groups and installed on four fixing plates 12 A first rotating frame 107 is installed on the top side of the buffer plate 106, and a second rotating frame 108 is installed on the bottom side of the movable plate 71. An adjusting frame 109 is installed between the first rotating frame 107 and the second rotating frame 108. The adjusting frame 109 is in a cross shape. Rolling bearings are installed between the adjusting frame 109 and the first rotating frame 107 and the second rotating frame 108. When the base 1 tilts and shakes, the electromagnetic thickness gauge 11 can be kept stable through the adjusting frame 109 and the second elastic member 105, so that the distance between the electromagnetic thickness gauge 11 and the ground is always consistent, thereby improving the accuracy of the detection data.

[0035] In one embodiment of the present invention, see Figure 1 , Figure 2 , Figure 3 and Figure 4 , the moving component 8 comprises: A driving motor 81 is installed on the bottom side of one end of the base 1, and rotating wheels 82 are installed at both ends of the driving motor 81. A first limiting frame 83 is installed at one end of the base 1 away from the driving motor 81, and a long rod 84 is installed on the first limiting frame 83, and rotating wheels 82 are also installed at both ends of the long rod 84.

[0036] The cleaning assembly 9 comprises: The second limiting frame 91 is installed on the end of the base 1 close to the first limiting frame 83, and a transmission rod 92 is installed on the second limiting frame 91. A third bevel gear 93 is fixedly installed on the end of the transmission rod 92 close to the long rod 84, and a fourth bevel gear 94 is installed on the outer side of the long rod 84. The third bevel gear 93 is meshed with the fourth bevel gear 94, and the transmission rod 92 is rotatably connected to the second limiting frame 91. A cleaning brush 95 is installed in the middle of the transmission rod 92.

[0037] In this embodiment, a driving motor 81 is installed at one end of the bottom side of the base 1, and rotating wheels 82 are installed at both ends of the driving motor 81. A first limiting frame 83 is installed at the other end of the bottom side of the base 1, and a rolling bearing is installed between the first limiting frame 83 and the long rod 84. Rotating wheels 82 are installed at both ends of the long rod 84. The driving motor 81 and the rotating wheels 82 can realize the stable movement of the base 1 on the road surface. A second limiting frame 91 is also installed on the bottom side of the base 1, and a transmission rod 92 is installed on the second limiting frame 91. The transmission rod 92 is connected to the The second limit frame 91 is rotatably connected, a third bevel gear 93 is installed at one end of the transmission rod 92, and a fourth bevel gear 94 is installed at one end of the long rod 84. The third bevel gear 93 is meshingly connected with the fourth bevel gear 94. When the long rod 84 rotates, the transmission rod 92 can be driven to rotate, and the cleaning brush 95 on the transmission rod 92 can be further rotated. The cleaning brush 95 can clean the stones and dirt on the road surface, ensure the stability of the universal wheel 14 during the movement, and further facilitate the electromagnetic thickness gauge 11 to detect the thickness of the road surface.

[0038] The working principle of the present invention is: In the present invention, the electromagnetic thickness gauge 11 is first installed, and the connecting frame 62 is extended into the inner side of the slide groove 61. When the positioning hole 63 on the connecting frame 62 and the axis of the short rod 65 are in the same straight line, under the action of the first elastic member 69, the short rod 65 is extended into the inner side of the positioning hole 63 to fix the position of the connecting frame 62, completing the installation operation of the electromagnetic thickness gauge 11. Then, the detection distance is calibrated and tested, and the handle 700 is turned to make the universal wheel 14 contact with the road surface and realize the compression of the second elastic member 105. Then, the driving member 54 is controlled to accurately adjust the distance between the electromagnetic thickness gauge 11 and the road surface. Then, the driving motor 81 is turned on to make the base 1 move stably on the road surface. During the movement, the cleaning brush 95 can be used to clean the road surface to be detected, thereby ensuring the stability of the movement of the universal wheel 14 and the distance between the electromagnetic thickness gauge 11 and the road surface, thereby further improving the accuracy of the detection data.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0040] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A non-destructive road thickness detection device, comprising a base (1) and a detection mechanism, characterized in that: The detection mechanism includes: The bracket (2) is fixedly mounted on the top side of the base (1); a limiting groove (15) is provided in the middle of the base (1); a support frame (3) is provided inside the limiting groove (15); a moving frame (4) is provided inside the support frame (3); an adjusting component (5) is installed between the moving frame (4) and the support frame (3) for adjusting the position of the moving frame (4) inside the support frame (3); an electromagnetic thickness gauge (11) is provided on the bottom side of the moving frame (4); a connecting component (6) is installed between the moving frame (4) and the electromagnetic thickness gauge (11) for making the electromagnetic thickness gauge (11) and the moving frame (4) detachably connected; a lifting component (7) is installed between the support frame (3) and the bracket (2) for adjusting the position of the support frame (3) in the vertical direction; The four corners at the bottom of the support frame (3) are all equipped with fixed plates (12), the bottom side of the fixed plate (12) is equipped with a support rod (13), the bottom side of the support rod (13) is fixedly equipped with a universal wheel (14), the bottom side of the base (1) is equipped with a moving component (8) for driving the base (1) to move, and a cleaning component (9) is installed between the base (1) and the moving component (8) for cleaning the road surface to be inspected when the base (1) moves.

2. The non-destructive road surface thickness detection device according to claim 1, characterized in that: The regulating component (5) comprises: A positioning plate (51) is fixedly mounted on the middle part of the bottom end of the support frame (3); a vertical rotating rod (52) is mounted between the positioning plate (51) and the support frame (3); both ends of the rotating rod (52) are rotatably connected to the positioning plate (51) and the support frame (3); the rotating rod (52) passes through the moving frame (4); the rotating rod (52) is threadedly connected to the moving frame (4); a motor frame (53) is fixedly mounted on the middle part of the top end inside the support frame (3); a driving member (54) is mounted on the motor frame (53); a driving rod (55) is fixedly mounted on the output end of the driving member (54); a first bevel gear (56) is fixedly mounted on the end of the driving rod (55) away from the driving member (54); a second bevel gear (57) is fixedly mounted on the outer side of the top end of the rotating rod (52); the first bevel gear (56) is meshingly connected with the second bevel gear (57).

3. The non-destructive road surface thickness detection device according to claim 2, characterized in that: The connecting component (6) comprises: The slide groove (61) is located on the movable frame (4). A connecting frame (62) is fixedly installed on the top of the electromagnetic thickness gauge (11). Both ends of the connecting frame (62) are provided with chamfers. The connecting frame (62) is slidably connected with the slide groove (61). The shape of the connecting frame (62) is T-shaped. Both ends of the connecting frame (62) are provided with positioning holes (63). A positioning frame (64) is installed on the movable frame (4). A vertical short rod (65) is installed on the positioning frame (64). A baffle (66) is installed at the top of the short rod (65), the short rod (65) passes through the positioning frame (64), the moving frame (4) is provided with a limiting hole (67), the short rod (65) extends into the inner side of the limiting hole (67), a fixing ring (68) is installed on the outer side of the short rod (65), a first elastic member (69) is sleeved on the outer side of the short rod (65), the first elastic member (69) connects the fixing ring (68) and the positioning frame (64), and the bottom end of the short rod (65) is semicircular.

4. The non-destructive road surface thickness detection device according to claim 3, characterized in that: The lifting assembly (7) comprises: The movable plate (71) is located on the top side of the bracket (2), a buffer assembly (10) is installed between the movable plate (71) and the support frame (3), a slide rail (72) is fixedly installed on the top side of the bracket (2), a rotating rod (73) is installed on the inner side of the slide rail (72), a slider (74) is installed on the outer side of the rotating rod (73), the slider (74) is slidably connected to the slide rail (72), the rotating rod (73) is threadedly connected to the slider (74), a first hinge seat (75) is fixedly installed on the top side of the slider (74), a second hinge seat (76) is fixedly installed at the bottom edge of the movable plate (71), and the first hinge seat (75) is fixedly installed on the top side of the movable plate (71). A connecting rod (77) is installed between an articulated seat (75) and a second articulated seat (76), and both ends of the connecting rod (77) are rotatably connected to the first articulated seat (75) and the second articulated seat (76). A fixing frame (78) is fixedly installed on one end of the bracket (2), and a rotating rod (73) passes through the fixing frame (78) and is fixedly installed with a rotating tooth (79) on one end. An adjusting rod (70) is installed on the fixing frame (78), and the adjusting rod (70) is rotatably connected to the fixing frame (78). The adjusting rod (70) is cooperatively connected to the rotating tooth (79), and a handle (700) is installed on one end of the adjusting rod (70).

5. The non-destructive road surface thickness detection device according to claim 4, characterized in that: The buffer assembly (10) comprises: A limiting rod (101) is fixedly mounted on the fixing plate (12) and is vertically shaped. A positioning ring (102) is sleeved on the outer side of the top end of the limiting rod (101). A vertical connecting plate (103) is installed on the outer side of the positioning ring (102). A limiting plate (104) is fixedly mounted on the top end of the limiting rod (101). A second elastic member (105) is sleeved on the outer side of the limiting rod (101). The second elastic member (105) is located between the fixing plate (12) and the positioning ring (102). 102), a buffer plate (106) is fixedly installed on the top of the connecting plate (103), a first rotating frame (107) is fixedly installed on both sides of the buffer plate (106), a second rotating frame (108) is installed on the bottom side of the movable plate (71), a cross-shaped adjustment frame (109) is installed between the movable plate (71) and the buffer plate (106), and the adjustment frame (109) is rotatably connected to the first rotating frame (107) and the second rotating frame (108).

6. The non-destructive road surface thickness detection device according to claim 1, characterized in that: The moving component (8) comprises: A driving motor (81) is mounted on the bottom side of one end of the base (1), and rotating wheels (82) are mounted on both ends of the driving motor (81). A first limiting frame (83) is mounted on the end of the base (1) away from the driving motor (81), and a long rod (84) is mounted on the first limiting frame (83), and rotating wheels (82) are also mounted on both ends of the long rod (84).

7. The non-destructive road surface thickness detection device according to claim 6, characterized in that: The cleaning component (9) comprises: The second limiting frame (91) is mounted on one end of the base (1) close to the first limiting frame (83); a transmission rod (92) is mounted on the second limiting frame (91); a third bevel gear (93) is fixedly mounted on one end of the transmission rod (92) close to the long rod (84); a fourth bevel gear (94) is mounted on the outer side of the long rod (84); the third bevel gear (93) is meshedly connected with the fourth bevel gear (94); the transmission rod (92) is rotatably connected to the second limiting frame (91); and a cleaning brush (95) is mounted in the middle of the transmission rod (92).

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