Asphalt surface layer construction quality nondestructive testing device and testing method thereof

Abstract

The invention discloses an asphalt surface layer construction quality nondestructive detection device and a detection method thereof.The device comprises a main body unit, a detection unit, a marking unit and a discharging closed drip-proof unit, and the main body unit comprises a movable base, wheel legs fixedly connected with the bottom of the movable base and wheels rotationally installed at the bottom ends of the wheel legs; the detection units are arranged at the bottom of the movable base in a linear array mode, the number of the marking units is the same as that of the detection units, the marking units are connected with the detection units and the movable base, and when the detection wheel rolls on a road surface and encounters a concave surface or a convex surface, the marking units can automatically drip pigment for marking. The number of the discharging closing anti-dripping units is consistent with that of the detection units, and the discharging closing anti-dripping units are connected with the marking units and the detection units and used for receiving residual pigment and preventing the residual pigment from dripping to other non-defect areas of the asphalt surface layer, so that the cleaning amount of subsequent repairing personnel is greatly reduced, and more importantly, the cleaning efficiency is improved. And the problem that the repair efficiency is reduced due to misleading is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of asphalt surface layer detection, and in particular to a nondestructive detection device for asphalt surface layer construction quality and a detection method thereof. Background Art

[0002] After the asphalt pavement layer is constructed, in order to ensure that the construction quality can pass the project quality acceptance, the asphalt surface layer needs to be non-destructively tested. Among them, a common non-destructive testing method is to use a specific non-destructive testing device to test the flatness of the asphalt pavement layer and mark it with paint to facilitate the subsequent repair of the convex or concave surface.

[0003] However, when existing nondestructive testing devices drip paint to mark convex or concave surfaces, they generally drip paint manually, which has low work efficiency. In addition, although some devices can automatically drip paint during the detection process, there is a more significant problem during use. During the dripping process of the paint, some paint often remains at the discharge port. As the detection device continues to move, these residual paints may inadvertently drip onto other non-defective locations on the asphalt surface. This not only increases the workload of subsequent cleaning, but more importantly, incorrect paint markings may mislead repair personnel, thereby affecting the repair efficiency of repair personnel. Summary of the invention

[0004] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a nondestructive testing device for asphalt surface construction quality, mainly comprising:

[0006] A main body unit, the main body unit comprising a mobile base, wheel legs fixedly connected to the four corners of the bottom of the mobile base, and wheels rotatably mounted to the bottom ends of the wheel legs;

[0007] A detection unit, wherein the detection unit is arranged in a linear array at the bottom of the mobile base, and the detection unit comprises an elastic telescopic member fixedly connected to the bottom of the mobile base, a mounting frame fixedly connected to the bottom end of the elastic telescopic member, and a detection wheel rotatably connected to the bottom end of the mounting frame, and the detection wheel is rollingly connected to the asphalt surface layer;

[0008] The marking unit has the same number as the detection unit and corresponds to the detection unit one by one. The marking unit is connected to the detection unit and the mobile base. When the detection wheel rolls on the road surface and encounters a concave or convex surface, the marking unit can automatically drip paint for marking;

[0009] The discharging closing and anti-drip unit has the same number as the detection unit and corresponds one to one. The discharging closing and anti-drip unit is connected with the marking unit and the detection unit to receive residual pigment and prevent it from dripping to other places.

[0010] As a preferred solution of the asphalt surface layer construction quality nondestructive testing device of the present invention, a moving handle is fixedly installed on the right side of the moving base, and a paint replenishing device is fixedly installed on the top right side of the moving base.

[0011] As a preferred solution of the non-destructive testing device for the construction quality of asphalt surface layer described in the present invention, the telescopic part includes a sleeve fixedly connected to the bottom of the movable base and opening downward, a first spring fixedly connected to the inner top wall of the sleeve, and a movable rod fixedly connected to the bottom end of the first spring, the movable rod is adapted to slide with the inside of the sleeve, and the bottom end of the movable rod slides out of the sleeve and is fixedly connected to the top of the mounting frame.

[0012] As a preferred solution of the nondestructive testing device for the construction quality of asphalt surface layer described in the present invention, wherein: the marking unit is located on the side of the testing unit facing the moving handle, the marking unit includes a rack fixedly connected to the mounting frame, a marking component fixedly arranged through the mobile base, and an opening and closing component located between the rack and the marking component, and the opening and closing component is connected to the rack, the mobile base and the marking component.

[0013] As a preferred solution of the asphalt pavement construction quality non-destructive testing device of the present invention, the marking component includes a paint cartridge fixedly arranged through the movable base, a pair of discharge pipes fixedly connected to the bottom end of the paint cartridge, and a discharge hopper fixedly connected to the bottom ends of the pair of discharge pipes, the top of the discharge hopper is a closed structure, a feeding port is arranged at the top of the paint cartridge, and a sealing cover is threadedly connected to the feeding port.

[0014] As a preferred solution of the asphalt surface construction quality nondestructive testing device of the present invention, wherein: the opening and closing assembly comprises a fixed rod fixedly connected to the bottom of the mobile base and a bracket fixedly connected to the bottom end of the fixed rod;

[0015] The first rotating shaft and the second rotating shaft are rotatably installed inside the bracket, and the first rotating shaft and the second rotating shaft are respectively fixedly sleeved with a first gear and a second gear outside, the first gear is meshingly connected to the rack, the second gear is located on the side of the first gear away from the rack, and is meshingly connected to the first gear, and a pair of eccentric wheel mechanisms are symmetrically fixedly sleeved on the second rotating shaft at the front and rear sides of the second gear, one end of the eccentric wheel mechanism is fixedly connected to an opening and closing mechanism, and the opening and closing mechanism is sealingly and slidingly connected to the top of the discharge hopper.

[0016] As a preferred solution of the asphalt pavement construction quality non-destructive testing device described in the present invention, the eccentric wheel mechanism includes an eccentric wheel fixedly sleeved on the outside of the second rotating shaft and a lifting rod movably engaged with a side of the eccentric wheel away from the second gear, the lifting rod is fixedly connected to a pair of bosses on the side facing the eccentric wheel, the pair of bosses are respectively in movably contact with the outer side and the inner side of the top of the eccentric wheel, the lifting rod slides through the top of the bracket, the lifting rod is fixedly connected to the opening and closing mechanism, and the distance between the top of the eccentric wheel and the center of the eccentric wheel is the shortest.

[0017] As a preferred solution of the non-destructive testing device for the construction quality of asphalt pavement described in the present invention, wherein: the opening and closing mechanism includes a connecting plate movably arranged between a pair of discharge pipes, a pair of connecting rods fixedly connected to one side of the connecting plate, and an opening and closing rod fixedly connected to the bottom of the connecting plate, the ends of the pair of connecting rods away from the connecting plate are respectively fixedly connected to a pair of lifting rods, the bottom end of the opening and closing rod is sealed and slidably inserted into the discharge hopper and fixedly connected with an opening and closing plug, the opening and closing plug is adapted to slide with the bottom of the discharge hopper, and when the opening and closing plug rises, the bottom outlet of the discharge hopper can be opened.

[0018] The cam is an angular channel that is fixedly connected to the top of the cam and is provided with a spring that is adapted to move the cam forwardly and downwardly from the top of the cam, wherein the cam is secured to the bottom of the cam and is secured to the bottom of the cam.

[0019] The detection method using the above-mentioned nondestructive detection device for asphalt surface construction quality comprises the following steps:

[0020] Step 1: First, place the device on the asphalt road surface to be tested, then operate the moving handle to push the moving base to move, and then push the wheels and the testing wheel to roll;

[0021] Step 2: When the detection wheel rolls on the asphalt pavement, if it encounters a concave surface, the elastic force generated by the first spring will cause the movable rod, the mounting frame, the detection wheel and the rack to move downward. The downward movement of the rack will drive the first gear to rotate. The first gear drives the second rotating shaft and the eccentric wheel to rotate clockwise through the second gear meshing with it. Since the top of the eccentric wheel is the shortest distance from the center of the eccentric wheel, when the eccentric wheel rotates, the lifting rod is driven to move upward through the cooperation of a pair of convex columns; the lifting rod drives the connecting plate, the opening and closing rod and the opening and closing plug to move upward through the connecting rod, the discharge port at the bottom of the discharge hopper is opened, and the pigment drips near the concave surface for marking. When the detection wheel rolls through the concave surface, the opening and closing plug moves down to reset and block the discharge hopper;

[0022] Step 3: When the detection wheel rolls on the asphalt pavement, if the pavement has a convex surface, the movable rod, the mounting frame, the detection wheel and the rack move upward, the first spring is compressed, and the rack moves upward to drive the first gear to rotate. The first gear drives the second rotating shaft and the eccentric wheel to rotate counterclockwise through the second gear meshing with it. Since the top of the eccentric wheel is the shortest distance from the center of the eccentric wheel, when the eccentric wheel rotates counterclockwise, the lifting rod can also be driven upward by the cooperation of a pair of convex columns, so that the opening and closing plug can move upward, the discharge port at the bottom of the discharge hopper is opened, and the pigment drips near the convex surface for marking. When the detection wheel rolls through the convex surface, the opening and closing plug moves down to reset and block the discharge hopper.

[0023] Step 4: When the detection wheel passes through the concave and convex surfaces, the mounting frame synchronously drives the synchronous rod to move downward or upward, and the synchronous rod drives the force rod to move synchronously. When the force rod moves downward or upward, the cooperation between the upper and lower inclined surfaces of the triangular groove and the upper and lower inclined surfaces of the force-bearing convex surface can push the force-bearing shell to move away from the discharge hopper. The force-bearing shell drives the material receiving box to move synchronously through the transverse sliding rod, so that the material receiving box is moved away from under the discharge hopper before the opening and closing plug is opened. At this time, the second spring is compressed. When the detection wheel passes through the concave and convex surfaces, the material receiving box is reset to the bottom of the discharge hopper under the action of the rebound force of the second spring, so as to receive the residual pigment and prevent it from dripping onto other asphalt pavements.

[0024] Beneficial effects of the present invention:

[0025] 1. In the present invention, when the detection wheel rolls and encounters a concave or convex surface, the deformation action of the first spring causes the mounting frame to move downward or upward, and the rack moves accordingly, thereby causing the first gear, the second gear and the eccentric wheel to rotate clockwise or counterclockwise. When the eccentric wheel rotates clockwise or counterclockwise, the lifting rod can be moved upward through the cooperation of a pair of convex columns, thereby opening the opening and closing mechanism and automatically releasing the paint for marking. The work efficiency is high, and it is convenient for the later repair personnel to repair the asphalt surface layer, and the repair efficiency is high.

[0026] 2. In the present invention, when the detection wheel rolls and encounters a concave or convex surface, the synchronization rod moves upward or downward synchronously with the mounting frame, and the synchronization rod drives the force rod to rise and fall synchronously. When the force rod moves upward or downward, the inclined surface of the triangular groove cooperates with the inclined surface of the force-bearing convex surface, so that the material receiving box can be moved away from under the discharge hopper, thereby not easily affecting the marking effect of the pigment. In addition, when the detection wheel rolls through the concave or convex surface, the material receiving box is reset to the bottom of the discharge hopper under the action of the rebound force of the second spring, which can prevent the residual pigment from accidentally dripping onto other non-defective positions of the asphalt surface layer, which not only greatly reduces the amount of cleaning for subsequent repair personnel, but more importantly, avoids the problem of reduced repair efficiency due to misleading. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0028] Figure 1 It is a schematic diagram of the overall structure of a nondestructive testing device for asphalt surface construction quality of the present invention.

[0029] Figure 2 It is a schematic diagram of the overall upward structure of a nondestructive testing device for asphalt surface construction quality of the present invention.

[0030] Figure 3 The present invention is a schematic diagram of the cross-sectional structure of a detection unit of a nondestructive detection device for asphalt surface construction quality.

[0031] Figure 4 The present invention is a schematic diagram of the connection structure between a detection unit, a marking unit and a discharge closure and anti-drip unit of a nondestructive detection device for asphalt surface construction quality of the present invention.

[0032] Figure 5 It is a structural schematic diagram of a marking unit of a nondestructive testing device for asphalt surface construction quality of the present invention.

[0033] Figure 6The present invention is a schematic cross-sectional structural diagram of the connection between an opening and closing mechanism and a discharge hopper of a nondestructive testing device for asphalt surface construction quality of the present invention.

[0034] Figure 7 The present invention is a schematic structural diagram of an eccentric wheel mechanism of a nondestructive testing device for asphalt surface construction quality.

[0035] Figure 8 It is a schematic cross-sectional structure diagram of a discharge closing anti-drip unit of a non-destructive testing device for asphalt surface construction quality of the present invention.

[0036] In the figure: 100, main unit; 101, mobile base; 102, wheel leg; 103, wheel; 104, mobile handle; 105, paint supply device; 200, detection unit; 201, mounting frame; 202, detection wheel; 203, sleeve; 204, first spring; 205, movable rod; 300, marking unit; 301, rack; 302, marking assembly; 302-1, paint cartridge; 302-2, discharge pipe; 302-3, discharge hopper; 303, opening and closing assembly; 303-1, fixed rod; 303-2, bracket; 303-3, first rotating shaft; 303-4, second rotating shaft ; 303-5, first gear; 303-6, second gear; 303-7, eccentric wheel mechanism; 303-71, eccentric wheel; 303-72, lifting rod; 303-73, boss; 303-8, opening and closing mechanism; 303-81, connecting plate; 303-82, connecting rod; 303-83, opening and closing rod; 303-84, opening and closing plug; 400, discharge closing anti-drip unit; 401, receiving box; 402, horizontal sliding rod; 403, force shell; 404, fixing plate; 405, second spring; 406, force convex surface; 407, force rod; 408, synchronization rod; 409, triangular groove. DETAILED DESCRIPTION

[0037] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0038] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0039] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0040] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0041] Example 1

[0042] Reference Figure 1 -7, is the first embodiment of the present invention, which provides a non-destructive testing device for asphalt surface construction quality, mainly comprising:

[0043] The main unit 100, such as Figure 1 The main unit 100 includes a mobile base 101, wheel legs 102 fixedly connected to the four corners of the bottom of the mobile base 101, and wheels 103 rotatably mounted on the bottom of the wheel legs 102. A mobile handle 104 is fixedly mounted on the right side of the mobile base 101, and a paint replenishing device 105 is fixedly mounted on the top right side of the mobile base 101. The paint replenishing device 105 usually includes a paint storage cylinder, a connecting pipe is fixedly connected to the bottom of one side of the paint storage cylinder, a valve is installed on the connecting pipe, a cup holder is fixedly connected to one side of the paint storage cylinder, and a replenishing cup is placed in the cup holder. The cup is used to facilitate the later replenishment of paint into the paint cylinder 302-1. In addition, the reflective material can be heated in the paint to achieve the effect of being able to see clearly at night.

[0044] The detection unit 200, such as Figure 4 The detection unit 200 is arranged in a linear array at the bottom of the mobile base 101. The detection unit 200 includes an elastic telescopic member fixedly connected to the bottom of the mobile base 101, a mounting frame 201 fixedly connected to the bottom end of the elastic telescopic member, and a detection wheel 202 rotatably connected to the bottom end of the mounting frame 201. The detection wheel 202 is rollingly connected to the asphalt surface layer;

[0045] The marking unit 300, such as Figure 2 The number of marking units 300 is the same as that of detection units 200, and they correspond one to one. The marking unit 300 is connected to the detection unit 200 and the mobile base 101. When the detection wheel 202 rolls on the road surface and encounters a concave or convex surface, the marking unit 300 can automatically drip paint for marking.

[0046] Specifically, Figure 3The telescopic part includes a sleeve 203 fixedly connected to the bottom of the mobile base 101 and opening downward, a first spring 204 fixedly connected to the inner top wall of the sleeve 203, and a movable rod 205 fixedly connected to the bottom end of the first spring 204. The movable rod 205 is adapted to slide with the inside of the sleeve 203, and the bottom end of the movable rod 205 slides out of the sleeve 203 and is fixedly connected to the top of the mounting frame 201. When the detection wheel 202 rolls on the road surface and encounters a concave or convex surface, the first spring 204 will be deformed, so that the mounting frame 201 can move downward or upward.

[0047] Specifically, Figure 5 The marking unit 300 is located on the side of the detection unit 200 facing the moving handle 104. The marking unit 300 includes a rack 301 fixedly connected to the mounting frame 201, a marking component 302 fixedly arranged through the moving base 101, and an opening and closing component 303 located between the rack 301 and the marking component 302. The opening and closing component 303 is connected to the rack 301, the moving base 101 and the marking component 302.

[0048] Furthermore, Figure 5 The marking component 302 includes a paint cartridge 302-1 fixedly penetrating the movable base 101, a pair of discharge pipes 302-2 fixedly connected to the bottom end of the paint cartridge 302-1, and a discharge hopper 302-3 fixedly connected to the bottom ends of the pair of discharge pipes 302-2. The top of the discharge hopper 302-3 is a closed structure. A feeding port is provided at the top of the paint cartridge 302-1. A sealing cover is threadedly connected to the feeding port for easy disassembly and assembly, and convenient for adding paint later.

[0049] like Figure 5 The opening and closing assembly 303 includes a fixed rod 303-1 fixedly connected to the bottom of the mobile base 101 and a bracket 303-2 fixedly connected to the bottom end of the fixed rod 303-1;

[0050] The first rotating shaft 303-3 and the second rotating shaft 303-4 are rotatably mounted inside the bracket 303-2 through bearings. The first rotating shaft 303-3 and the second rotating shaft 303-4 are respectively fixedly sleeved with the first gear 303-5 and the second gear 303-6. The first gear 303-5 is meshed and connected with the rack 301. The purpose of setting the first gear 303-5 is to increase the space between the second gear 303-6 and the mounting bracket 201 so that the eccentric wheel mechanism 303-7 can have enough space to rotate. The second gear 303-6 is located between the first gear 30 3-5 is away from one side of the rack 301 and is meshed with the first gear 303-5. When the rack 301 moves down or up with the mounting bracket 201, it can drive the first gear 303-5 to rotate, and the first gear 303-5 drives the second gear 303-6 meshed with it to rotate. A pair of eccentric wheel mechanisms 303-7 are symmetrically fixedly sleeved on the second rotating shaft 303-4 on the front and rear sides of the second gear 303-6. One end of the eccentric wheel mechanism 303-7 is fixedly connected to an opening and closing mechanism 303-8, and the opening and closing mechanism 303-8 is sealed and slidably connected to the top of the discharge hopper 302-3.

[0051] Furthermore, Figure 6 The eccentric wheel mechanism 303-7 includes an eccentric wheel 303-71 fixedly sleeved on the outside of the second rotating shaft 303-4 and a lifting rod 303-72 movably fitted with a side of the eccentric wheel 303-71 away from the second gear 303-6. The lifting rod 303-72 is fixedly connected with a pair of bosses 303-73 on the side facing the eccentric wheel 303-71. The pair of bosses 303-73 are movably contacted with the outer side and the inner side of the top of the eccentric wheel 303-71 respectively. The lifting rod 303-72 slides through the top of the bracket 303-2. The lifting rod 303-72 is fixedly connected to the opening and closing mechanism 303-8. The distance between the top of the eccentric wheel 303-71 and the center of the eccentric wheel 303-71 is the shortest. The purpose of this arrangement is that no matter whether the eccentric wheel 303-71 rotates clockwise or counterclockwise, the lifting rod 303-72 can be driven to move upward by the pair of bosses 303-73. In addition, the clockwise or counterclockwise rotation angle of the eccentric wheel 303-71 does not exceed 180°.

[0052] Furthermore, Figure 7The opening and closing mechanism 303-8 includes a connecting plate 303-81 movably arranged between a pair of discharge pipes 302-2, a pair of connecting rods 303-82 fixedly connected to one side of the connecting plate 303-81, and an opening and closing rod 303-83 fixedly connected to the bottom of the connecting plate 303-81. One end of the pair of connecting rods 303-82 away from the connecting plate 303-81 is fixedly connected to a pair of lifting rods 303-72 respectively. The bottom end of the opening and closing rod 303-83 is sealed and slidably inserted into the discharge hopper 302-3 and is fixedly connected with an opening and closing plug 303-84. The opening and closing plug 303-84 is adapted to slide with the bottom of the discharge hopper 302-3. When the opening and closing plug 303-84 rises, it can open the bottom outlet of the discharge hopper 302-3. Therefore, the shape of the discharge hopper 302-3 is an inverted conical structure, and the internal diameter decreases from top to bottom.

[0053] Example 2

[0054] Reference Figure 4 and Figure 8 , which is the second embodiment of the present invention. This embodiment is different from the first embodiment in that: the device also includes a discharge closing and drip-proof unit 400. The number of the discharge closing and drip-proof units 400 is consistent with that of the detection units 200, and they correspond one to one. The discharge closing and drip-proof unit 400 is connected to the marking unit 300 and the detection unit 200, and is used to receive residual pigment to prevent it from dripping to other places.

[0055] Specifically, the discharge closing anti-drip unit 400 includes a receiving box 401 located directly below the discharge hopper 302-3, a transverse slide bar 402 fixedly connected to the side of the receiving box 401 facing the mounting frame 201, a force-bearing shell 403 fixedly connected to the end of the transverse slide bar 402 away from the receiving box 401, and a fixed plate 404 slidably sleeved on the outside of the transverse slide bar 402, the top of the fixed plate 404 is fixedly connected to the top of one side of the discharge hopper 302-3, a second spring 405 is fixedly connected between the fixed plate 404 and the force-bearing shell 403, the second spring 405 is movably sleeved on the outside of the transverse slide bar 402, the force-bearing shell 403 is a top-to-bottom connecting structure, and a force-bearing convex surface 406 is arranged on the inner wall of the side of the force-bearing shell 403 away from the receiving box 401, and the upper and lower surfaces of the force-bearing convex surface 406 are symmetrically arranged The two inclined surfaces intersect, and the intersection is set to be an arc shape. A force-applying rod 407 is adapted and slidably connected inside the force-applying shell 403. A synchronization rod 408 is fixedly connected to the top of the force-applying rod 407. One end of the synchronization rod 408 is fixedly connected to the mounting bracket 201. A triangular groove 409 is provided on the synchronization rod 408 facing the side of the force-bearing convex surface 406. The upper and lower surfaces of the triangular groove 409 are movably fitted with the upper and lower surfaces of the force-bearing convex surface 406 respectively. Therefore, when the force-applying rod 407 is subjected to an upward or downward force, the upper and lower inclined surfaces of the triangular groove 409 can cooperate with the upper and lower inclined surfaces of the force-bearing convex surface 406 to push the force-bearing shell 403 to move away from the discharge hopper 302-3, so that the material receiving box 401 can be removed from the bottom of the discharge hopper 302-3 before the paint drips, and the marking effect will not be affected.

[0056] The remaining structures are the same as those of Example 1.

[0057] The detection method using the above-mentioned nondestructive detection device for the construction quality of asphalt surface layer is as follows: first, the device is placed on the asphalt pavement to be detected, and then the movable base 101 is pushed to move by operating the movable handle 104, and then the wheel 103 and the detection wheel 202 are pushed to roll. When the detection wheel 202 rolls on the asphalt pavement, if it encounters a concave surface of the pavement, the elastic force generated by the first spring 204 will cause the movable rod 205, the mounting frame 201, the detection wheel 202 and the rack 301 to move downward. The downward movement of the rack 301 will drive the first gear 303-5 to rotate. The first gear 303-5 drives the second rotating shaft 303-4 and the eccentric wheel 303-71 to rotate clockwise through the second gear 303-6 meshing with it. Since the eccentric wheel 303-71 is pushed up The distance between the eccentric wheel 303-71 and the center is the shortest. Therefore, when the eccentric wheel 303-71 rotates, the lifting rod 303-72 is driven to move upward by the cooperation of a pair of protruding columns 303-73. The lifting rod 303-72 drives the connecting plate 303-81, the opening and closing rod 303-83 and the opening and closing plug 303-84 to move upward through the connecting rod 303-82. The discharge port at the bottom of the discharge hopper 302-3 is opened, and the paint drips to the concave surface for marking, which is convenient for the later repair personnel to repair. When the detection wheel 202 rolls through the concave surface, the opening and closing plug 303-84 moves down to reset and block the discharge hopper 302-3. When the detection wheel 202 rolls on the asphalt road surface, if the road surface is convex, the movable rod 205, the mounting frame 201, the detection wheel 202 and the rack 301 move upward, the first spring 204 is compressed, and the rack 301 moves upward to drive the first gear 303-5 to rotate. The first gear 303-5 drives the second rotating shaft 303-4 and the eccentric wheel 303-71 to rotate counterclockwise through the second gear 303-6 meshing with it. The distance between the part and the center of the eccentric wheel 303-71 is the shortest. Therefore, when the eccentric wheel 303-71 rotates counterclockwise, the lifting rod 303-72 can be driven to move upward through the cooperation of a pair of convex columns 303-73, so that the opening and closing plug 303-84 can move upward, the discharge port at the bottom end of the discharge hopper 302-3 is opened, and the pigment drips near the convex surface for automatic marking. When the detection wheel 202 rolls through the convex surface, the opening and closing plug 303-84 moves down to reset and block the discharge hopper 302-3.When the detection wheel 202 passes through the concave surface and the convex surface, the mounting frame 201 synchronously drives the synchronous rod 408 to move downward or upward, and the synchronous rod 408 drives the force-applying rod 407 to move synchronously. When the force-applying rod 407 moves downward or upward, the upper and lower inclined surfaces of the triangular groove 409 cooperate with the upper and lower inclined surfaces of the force-bearing convex surface 406 to push the force-bearing shell 403 to move away from the discharge hopper 302-3. The force-bearing shell 403 drives the receiving box 401 to move synchronously through the transverse sliding rod 402, so that the receiving box 401 Before the opening and closing plug 303-84 is opened, it is moved away from under the discharge hopper 302-3. At this time, the second spring 405 is compressed. When the detection wheel 202 passes through the concave surface and the convex surface, the receiving box 401 is reset to the bottom of the discharge hopper 302-3 under the action of the rebound force of the second spring 405 to receive the residual paint and prevent the paint from dripping onto other non-defective positions of the asphalt surface layer. Therefore, not only the amount of cleaning for subsequent repair personnel is greatly reduced, but more importantly, the problem of reduced repair efficiency due to misleading is avoided.

[0058] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A nondestructive testing device for asphalt surface construction quality, characterized in that: include: A main body unit (100), the main body unit (100) comprising a mobile base (101), wheel legs (102) fixedly connected to four corners of the bottom of the mobile base (101), and wheels (103) rotatably mounted on the bottom ends of the wheel legs (102); A detection unit (200), the detection unit (200) being arranged in a linear array at the bottom of the mobile base (101), the detection unit (200) comprising an elastic telescopic member fixedly connected to the bottom of the mobile base (101), a mounting frame (201) fixedly connected to the bottom end of the elastic telescopic member, and a detection wheel (202) rotatably connected to the bottom end of the mounting frame (201), the detection wheel (202) being rollingly connected to the asphalt surface layer; The marking units (300) are the same in number as the detection units (200) and correspond one to one. The marking units (300) are connected to the detection units (200) and the mobile base (101). When the detection wheel (202) rolls on the road surface and encounters a concave or convex surface, the marking unit (300) can automatically drip paint for marking. The discharging closing and anti-drip unit (400) is consistent in number with the detection unit (200) and corresponds one to one. The discharging closing and anti-drip unit (400) is connected to the marking unit (300) and the detection unit (200) and is used to receive residual pigment to prevent it from dripping to other places.

2. The nondestructive testing device for asphalt surface construction quality according to claim 1, characterized in that: A moving handle (104) is fixedly mounted on the right side of the moving base (101), and a paint supply device (105) is fixedly mounted on the top right side of the moving base (101).

3. The nondestructive testing device for asphalt surface construction quality according to claim 1, characterized in that: The telescopic member comprises a sleeve (203) fixedly connected to the bottom of the movable base (101) and opening downward, a first spring (204) fixedly connected to the inner top wall of the sleeve (203), and a movable rod (205) fixedly connected to the bottom end of the first spring (204); the movable rod (205) is adapted to slide with the inside of the sleeve (203); the bottom end of the movable rod (205) slides out of the sleeve (203) and is fixedly connected to the top of the mounting frame (201).

4. The nondestructive testing device for asphalt surface construction quality according to claim 1, characterized in that: The marking unit (300) is located on a side of the detection unit (200) facing the moving handle (104), and comprises a rack (301) fixedly connected to the mounting frame (201), a marking component (302) fixedly arranged to penetrate the moving base (101), and an opening and closing component (303) located between the rack (301) and the marking component (302), wherein the opening and closing component (303) is connected to the rack (301), the moving base (101), and the marking component (302).

5. The nondestructive testing device for asphalt surface construction quality as claimed in claim 4, characterized in that: The marking component (302) comprises a paint cartridge (302-1) fixedly arranged to penetrate the movable base (101), a pair of discharge pipes (302-2) fixedly connected to the bottom end of the paint cartridge (302-1), and a discharge hopper (302-3) fixedly connected to the bottom ends of the pair of discharge pipes (302-2); the top of the discharge hopper (302-3) is a closed structure; the top of the paint cartridge (302-1) is provided with a feeding port, and a sealing cover is threadedly connected to the feeding port.

6. The nondestructive testing device for asphalt surface construction quality according to claim 4, characterized in that: The opening and closing assembly (303) comprises a fixing rod (303-1) fixedly connected to the bottom of the movable base (101) and a bracket (303-2) fixedly connected to the bottom end of the fixing rod (303-1); A first rotating shaft (303-3) and a second rotating shaft (303-4) are rotatably mounted inside the bracket (303-2); a first gear (303-5) and a second gear (303-6) are fixedly sleeved on the outside of the first rotating shaft (303-3) and the second rotating shaft (303-4), respectively; the first gear (303-5) is meshingly connected with the rack (301); the second gear (303-6) is located on a side of the first gear (303-5) away from the rack (301) and is meshingly connected with the first gear (303-5); a pair of eccentric wheel mechanisms (303-7) are symmetrically fixedly sleeved on the second rotating shaft (303-4) at the front and rear sides of the second gear (303-6); one end of the eccentric wheel mechanism (303-7) is fixedly connected with an opening and closing mechanism (303-8); the opening and closing mechanism (303-8) is sealingly and slidingly connected with the top of the discharge hopper (302-3).

7. The nondestructive testing device for asphalt surface construction quality according to claim 6, characterized in that: The eccentric wheel mechanism (303-7) comprises an eccentric wheel (303-71) fixedly sleeved on the outside of the second rotating shaft (303-4) and a lifting rod (303-72) movably fitted with a side of the eccentric wheel (303-71) away from the second gear (303-6); a pair of bosses (303-73) are fixedly connected to the lifting rod (303-72) on the side facing the eccentric wheel (303-71); the pair of bosses (303-73) are movably contacted with the outer side surface and the inner side surface of the top of the eccentric wheel (303-71), the lifting rod (303-72) is slidably penetrated through the top of the bracket (303-2), the lifting rod (303-72 is fixedly connected to the opening and closing mechanism (303-8), and the distance between the top of the eccentric wheel (303-71) and the center of the eccentric wheel (303-71) is the shortest.

8. The nondestructive testing device for asphalt surface construction quality according to claim 7, characterized in that: The opening and closing mechanism (303-8) comprises a connecting plate (303-81) movably arranged between a pair of discharge pipes (302-2), a pair of connecting rods (303-82) fixedly connected to one side of the connecting plate (303-81), and an opening and closing rod (303-83) fixedly connected to the bottom of the connecting plate (303-81), wherein one end of the pair of connecting rods (303-82) away from the connecting plate (303-81) is fixedly connected to a pair of lifting rods (303-72) respectively, and the bottom end of the opening and closing rod (303-83) is sealed and slidably inserted into the discharge hopper (302-3) and is fixedly connected with an opening and closing plug (303-84), and the opening and closing plug (303-84) is adapted and slidably connected to the bottom of the discharge hopper (302-3), and when the opening and closing plug (303-84) rises, the bottom outlet of the discharge hopper (302-3) can be opened.

9. The nondestructive testing device for asphalt surface construction quality according to claim 1, characterized in that: The discharging closing anti-drip unit (400) comprises a material receiving box (401) located directly below the material discharging hopper (302-3), a transverse sliding rod (402) fixedly connected to a side of the material receiving box (401) facing the mounting frame (201), a force-bearing shell (403) fixedly connected to an end of the transverse sliding rod (402) away from the material receiving box (401), and a fixed plate (404) slidably sleeved on the outside of the transverse sliding rod (402), the top of the fixed plate (404) being fixedly connected to the top of one side of the material discharging hopper (302-3), a second spring (405) being fixedly connected between the fixed plate (404) and the force-bearing shell (403), and the second spring (405) being movably sleeved on the transverse sliding rod (402). 02) outside, the force-bearing shell (403) is a structure connected up and down, and a force-bearing convex surface (406) is arranged on the inner wall of the side of the force-bearing shell (403) away from the material receiving box (401), and the upper and lower surfaces of the force-bearing convex surface (406) are symmetrically arranged inclined surfaces, and a force-applying rod (407) is adapted and slidably connected inside the force-bearing shell (403), and a synchronization rod (408) is fixedly connected to the top of the force-applying rod (407), and one end of the synchronization rod (408) is fixedly connected to the mounting frame (201), and a triangular groove (409) is provided on the side of the synchronization rod (408) facing the force-bearing convex surface (406), and the upper and lower surfaces of the triangular groove (409) are movably fitted with the upper and lower surfaces of the force-bearing convex surface (406) respectively.

10. The detection method of the asphalt surface layer construction quality nondestructive detection device according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: First, place the device on the asphalt road surface to be tested, then operate the moving handle (104) to push the moving base (101) to move, and then push the wheel (103) and the testing wheel (202) to roll; Step 2: When the detection wheel (202) rolls on the asphalt road surface, if the road surface is concave, the elastic force generated by the first spring (204) will cause the movable rod (205), the mounting frame (201), the detection wheel (202) and the rack (301) to move downward. The downward movement of the rack (301) will drive the first gear (303-5) to rotate. The first gear (303-5) drives the second rotating shaft (303-4) and the eccentric wheel (303-71) to rotate clockwise through the second gear (303-6) meshing with it. Since the top of the eccentric wheel (303-71) is 1.5 meters away from the eccentric wheel (303-6), the first gear (303-5) will rotate clockwise. The center of the eccentric wheel (303-71) is shortest, so when the eccentric wheel (303-71) rotates, the lifting rod (303-72) is driven to move upwards through the cooperation of a pair of convex columns (303-73); the lifting rod (303-72) drives the connecting plate (303-81), the opening and closing rod (303-83) and the opening and closing plug (303-84) to move upwards through the connecting rod (303-82), the discharge port at the bottom end of the discharge hopper (302-3) is opened, and the pigment drips to the vicinity of the concave surface for marking, and when the detection wheel (202) rolls through the concave surface, the opening and closing plug (303-84) moves downward to reset and block the discharge hopper (302-3); Step 3: When the detection wheel (202) rolls on the asphalt road surface, if the road surface is convex, the movable rod (205), the mounting frame (201), the detection wheel (202) and the rack (301) move upward, the first spring (204) is compressed, and the rack (301) moves upward to drive the first gear (303-5) to rotate. The first gear (303-5) drives the second rotating shaft (303-4) and the eccentric wheel (303-71) to rotate counterclockwise through the second gear (303-6) meshing with it. The top of the eccentric wheel (303-71) is shortest from the center of the eccentric wheel (303-71), so when the eccentric wheel (303-71) rotates counterclockwise, the lifting rod (303-72) can be driven to move upward through the cooperation of a pair of convex columns (303-73), so that the opening and closing plug (303-84) can be moved upward, the discharge port at the bottom end of the discharge hopper (302-3) is opened, and the pigment drips near the convex surface for marking. When the detection wheel (202) rolls through the convex surface, the opening and closing plug (303-84) moves downward to reset and block the discharge hopper (302-3); Step 4: When the detection wheel (202) passes through the concave surface and the convex surface, the mounting frame (201) synchronously drives the synchronization rod (408) to move downward or upward, and the synchronization rod (408) drives the force-applying rod (407) to move synchronously. When the force-applying rod (407) moves downward or upward, the upper and lower inclined surfaces of the triangular groove (409) cooperate with the upper and lower inclined surfaces of the force-bearing convex surface (406), so that the force-bearing shell (403) can be pushed to move in a direction away from the discharge hopper (302-3). The receiving box (401) is driven to move synchronously by the transverse sliding rod (402), so that the receiving box (401) is moved away from below the discharge hopper (302-3) before the opening and closing plug (303-84) is opened. At this time, the second spring (405) is compressed. When the detection wheel (202) passes through the concave surface and the convex surface, the receiving box (401) is reset to the bottom of the discharge hopper (302-3) under the action of the rebound force of the second spring (405) to receive the residual pigment and prevent it from dripping onto other asphalt pavement.

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