A road maintenance pavement quality detection device

Abstract

The present invention provides a road maintenance pavement quality detection device, which belongs to the technical field of road pavement detection. It comprises a box body, the top of which is provided with a driving slide rail, the inner side of which is provided with a mounting block, the bottom end of which is provided with an electric push rod, and an extrusion assembly, which is installed at the bottom end of the electric push rod, and is used to provide an extrusion force. The present invention sets a pressure assembly and a scraping assembly, and by using a pulley group to transmit the pressure wheel and the scraping chain, it is possible to simultaneously perform pressure resistance and scratch resistance tests on the test sample, without the need to replace special test equipment, thereby improving the detection efficiency of the test sample, reducing the operating difficulty of the operator, and facilitating use.

Description

Technical Field

[0001] The present invention relates to the technical field of road pavement detection, and in particular to a road maintenance pavement quality detection device. Background Art

[0002] Road maintenance is the care and maintenance of roads, maintaining roads and the structures and facilities on them, maintaining road performance as much as possible, restoring damaged parts in a timely manner, ensuring safe, comfortable and smooth driving, saving transportation costs and time, taking correct technical measures, improving project quality, extending the service life of roads, and postponing reconstruction time.

[0003] Based on the existing road surface inspection equipment, different equipment is needed to detect different inspection purposes such as: compression flatness, road friction, resistance to exposure, etc. There are many operating devices and they occupy a large space. Operators are required to frequently change equipment for operation. The inspection efficiency is low, and the use environment cannot be simulated according to road usage conditions, which affects the accuracy of the inspection data. Therefore, the present application provides a road maintenance pavement quality inspection device to meet the needs. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a road maintenance pavement quality detection device to solve the problem that existing pavement detection equipment needs to use different equipment for different detection purposes such as: compression flatness, road friction, resistance to exposure, etc., and there are many operating devices and they occupy a large space. Operators need to frequently change equipment for operation, the detection efficiency is low, and the use environment cannot be simulated according to road usage conditions, affecting the accuracy of the detection data.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A road maintenance pavement quality detection device comprises a box body, a driving slide rail is arranged on the top of the box body, a mounting block is arranged on the inner side of the driving slide rail, and an electric push rod is arranged on the bottom end of the mounting block;

[0007] It also includes an extrusion assembly, which is installed at the bottom end of the electric push rod and is used to provide an extrusion force;

[0008] A pressure assembly, the pressure assembly is installed on the inner side of the extrusion assembly, and the pressure assembly is used to perform a pressure test on the test sample;

[0009] A scraping assembly, the scraping assembly is installed on the inner side of the extrusion assembly, and the scraping assembly is used to cooperate with the pressure assembly for transmission, and simultaneously perform a scratch resistance test on the test sample while performing a pressure test;

[0010] An auxiliary component, which is installed on the inner side of the box and is used to spray water on the surface of the test sample to simulate rain conditions and assist in pressure testing and anti-scratch testing;

[0011] The extrusion assembly includes a mounting plate, the mounting plate is mounted on the end of the electric push rod, the bottom end of the mounting plate is symmetrically connected to two mounting rods 1, a pressure sensor 1 is mounted on the inner side of each mounting rod 1, the bottom end of the pressure sensor 1 is connected to a spring 1, and the bottom end of the spring 1 is connected to a slider 1;

[0012] The slider 1 slides in the inner groove of the corresponding mounting rod 1, the bottom end of the mounting plate is symmetrically connected to two mounting rods 2, a pressure sensor 2 is installed on the inner side of each mounting rod 2, the bottom end of the pressure sensor 2 is connected to a spring 2, the bottom end of the spring 2 is connected to a slider 2, the slider 2 slides in the inner groove of the corresponding mounting rod 2, and the end of the slider 1 is connected to a motor;

[0013] The pressure assembly includes a pressure wheel, which is installed between the two sliders. The rotating shaft of the pressure wheel is connected to the motor. Four mounting grooves are arranged at equal angles on both side ends of the pressure wheel, and inner support blocks are installed inside the mounting grooves.

[0014] Four mounting seats are installed at equal angles on the outer side of the pressure wheel, and two mounting shafts are symmetrically installed at the bottom of each mounting seat. Bolts are threadedly engaged at the end of the mounting shaft. The mounting shaft passes through the pressure wheel and the inner support block for installation, and the outer side of the mounting seat is connected to a pressure block.

[0015] Optionally, the scraping assembly includes a rotating wheel, a rotating shaft of the rotating wheel is nested and installed on the inner sides of the two sliding blocks 2, the rotating wheel rotates between the two sliding blocks 2, and a scraping chain is connected to the outer side of the rotating wheel.

[0016] Optionally, scraping heads are evenly distributed and installed on the surface of the scraping chain, and the end of the rotating wheel is connected to a pulley group, and one pulley in the pulley group is sleeved on the output shaft of the motor.

[0017] Optionally, an auxiliary plate is installed on the inner side of the box body, the auxiliary plate slides on the inner side of the box body, an auxiliary scraping groove is provided on the inner side of the auxiliary plate, the scraping head slides inside the auxiliary scraping groove, and a heating plate is connected to the bottom end of the auxiliary plate.

[0018] Optionally, the auxiliary component includes a mounting frame, which is mounted on the inner side of the box body and slides on the inner side of the box body. A collection tank 1 is mounted on the inner side of the mounting frame, a collection tank 2 is nested on the inner side of the collection tank 1, and a nozzle is mounted on one side of the mounting frame.

[0019] Optionally, the nozzle is connected to a water pump via a pipeline, the water pump is connected to a water tank via a pipeline, the water tank is installed on one side of the box body, the inner edge of the collecting tank is connected to a sealing plug, one side of the sealing plug is connected to a fixing clamp, and the fixing clamp is installed on the inner side of the mounting frame.

[0020] Compared with the prior art, the present invention has at least the following beneficial effects:

[0021] In the above scheme, by setting up a pressure component and a scraping component, and by using a pulley group to transmit the pressure wheel and the scraping chain, the test sample can be tested for pressure resistance and scratch resistance at the same time. There is no need to replace special testing equipment, which improves the inspection efficiency of the test sample, reduces the operating difficulty of the operator, and is easy to use.

[0022] By setting up an extrusion assembly and using spring one and spring two to compress the inner sides of the corresponding mounting rod one and mounting rod two, the vibration generated in the anti-pressure detection and scratch detection is damped, so that there is no interference between the two groups of different detection mechanisms, and the stability of pressure transmission and scratch detection is avoided. At the same time, pressure can be transmitted to pressure sensor one and pressure sensor two, which facilitates the device to record the detection data.

[0023] By setting up auxiliary components and using sprinklers to spray water on the surface of the test sample, it is used to simulate the squeezing and scraping forces on the ground when it rains, so as to avoid single test results that cannot reflect the squeezing pressure of heavy-loaded vehicles on the ground and the scraping of objects on the road surface in real situations, making the test results more convincing.

[0024] By setting up a heating plate, the test sample is heated to simulate whether there will be cracks on the ground when the ground is under pressure after being exposed to the sun, thereby improving the detection efficiency and facilitating observation and detection by operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable those skilled in the relevant art to make and use the invention.

[0026] Figure 1 It is a schematic diagram of the three-dimensional structure of the road maintenance pavement quality detection device.

[0027] Figure 2 This is a top view of the three-dimensional structure of the road maintenance pavement quality detection device.

[0028] Figure 3 It is a schematic diagram of the three-dimensional structure of the extrusion component.

[0029] Figure 4 Schematic diagram of the three-dimensional structure of the extrusion component, pressure component and scraping component.

[0030] Figure 5 It is a schematic diagram of the three-dimensional structure of the pressure component.

[0031] Figure 6 This is a schematic diagram of the explosion of the three-dimensional structure of the pressure component.

[0032] Figure 7 Schematic diagram of the three-dimensional structure for assembling the scraping component and the auxiliary component.

[0033] Figure 8 It is a schematic diagram of the three-dimensional structure of the scraping component.

[0034] Fig. 9 for Figure 8 Enlarged schematic diagram of the three-dimensional structure at A in the middle.

[0035] Fig.10 It is a schematic diagram of the three-dimensional structure of the auxiliary component.

[0036] Reference numerals:

[0037] 1. Box; 2. Drive rail; 3. Mounting block; 4. Electric push rod; 5. Extrusion assembly; 51. Mounting plate; 52. Mounting rod 1; 53. Pressure sensor 1; 54. Spring 1; 55. Slider 1; 56. Mounting rod 2; 57. Pressure sensor 2; 58. Spring 2; 59. Slider 2; 510. Motor; 6. Pressure assembly; 61. Pressure wheel; 62. Mounting slot; 63. Inner support block; 64. Mounting Seat; 65, mounting shaft; 66, bolt; 67, pressure block; 7, scraping assembly; 71, rotating wheel; 72, scraping chain; 73, scraping head; 74, pulley set; 75, auxiliary plate; 76, auxiliary scraping groove; 77, heating plate; 8, auxiliary assembly; 81, mounting frame; 82, collecting tank one; 820, collecting tank two; 83, nozzle; 84, water pump; 85, water tank; 86, sealing plug; 87, fixing fixture.

[0038] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0039] The following is a detailed description of a road maintenance pavement quality detection device provided by the present invention in conjunction with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternative methods to implement some known technologies; and the accompanying drawings are only for a more specific description of the embodiments, and are not intended to specifically limit the present invention.

[0040] It should be noted that the references to "one embodiment", "embodiment", "exemplary embodiments", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).

[0041] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0042] It will be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” not only means “directly on” something, but also includes the meaning of being “on” something with intervening features or layers therebetween, and “on” or “over” not only means “on” or “above” something, but also includes the meaning of being “on” or “above” something with no intervening features or layers therebetween.

[0043] Additionally, spatially relative terms such as "under," "beneath," "lower," "above," "upper," and the like may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as shown in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein may be similarly interpreted accordingly.

[0044] like Figures 1 to 10As shown, an embodiment of the present invention provides a road maintenance pavement quality detection device, including a box body 1, a driving slide rail 2 is arranged on the top of the box body 1, a mounting block 3 is arranged on the inner side of the driving slide rail 2, an electric push rod 4 is arranged on the bottom end of the mounting block 3, and also includes an extrusion component 5, the extrusion component 5 is installed at the bottom end of the electric push rod 4, the extrusion component 5 is used to provide an extrusion force, a pressure component 6, the pressure component 6 is installed on the inner side of the extrusion component 5, the pressure component 6 is used to perform a pressure test on a test sample, a scraping component 7, the scraping component 7 is installed on the inner side of the extrusion component 5, the scraping component 7 is used to cooperate with the pressure component 6 for transmission, and while the pressure test is performed on the test sample, an anti-scratch ability test is performed simultaneously, an auxiliary component 8, the auxiliary component 8 is installed on the inner side of the box body 1, and the auxiliary component 8 is used to spray water on the surface of the test sample to simulate rain conditions, so as to assist the pressure test and the anti-scratch ability test.

[0045] like Figures 1 to 4 As shown, the extrusion assembly 5 includes a mounting plate 51, which is mounted on the end of the electric push rod 4. The bottom end of the mounting plate 51 is symmetrically connected to two mounting rods 52, and a pressure sensor 53 is mounted on the inner side of each mounting rod 52. The bottom end of the pressure sensor 53 is connected to a spring 54, and the bottom end of the spring 54 is connected to a slider 55. The slider 55 slides in the inner groove of the corresponding mounting rod 52. The bottom end of the mounting plate 51 is symmetrically connected to two mounting rods 56, and a pressure sensor 57 is mounted on the inner side of each mounting rod 56. The bottom end of the pressure sensor 57 is connected to a spring 58, and the bottom end of the spring 58 is connected to a slider 59. The slider 59 slides in the inner groove of the corresponding mounting rod 56, and the end of the slider 55 is connected to a motor 510.

[0046] By setting the extrusion assembly 5, the electric push rod 4 pushes the mounting plate 51 to move downward, so that the two mounting rods 1 52 and the mounting rod 2 56 move toward the test sample, and the slider 1 55 slides in the inner groove of the mounting rod 1 52, presses the spring 1 54 upward, and presses the pressure sensor 1 53. The spring 1 54 provides shock absorption for the pressure wheel 61 between the two sliders 1 55 during the pressure test. At the same time, the pressure sensor 1 53 records the pressure data every time the slider 1 55 presses the corresponding spring 1 54, so that the operator can compare the pressure resistance of the test sample through the pressure data. The two sliders 2 59 are respectively in the corresponding mounting grooves. The inner side of the mounting rod 56 slides, and the slider 59 presses the spring 58 upwards. The spring 58 contracts and presses the pressure sensor 57 upwards. The pressure sensor 57 can timely obtain the scratch pressure data in the scratch test. By using the spring 1 54 and the spring 2 58 to compress the inner sides of the corresponding mounting rods 1 52 and 2 56, the vibration generated in the anti-pressure detection and the scratch detection is reduced, so that there is no interference between the two groups of different detection mechanisms, avoiding affecting the stability of pressure transmission and scratch detection. At the same time, it can transmit pressure to the pressure sensor 1 53 and the pressure sensor 2 57, so that the device can record the detection data conveniently.

[0047] like Figures 4 to 6 As shown, the pressure assembly 6 includes a pressure wheel 61, which is installed between two sets of sliders 55. The rotating shaft of the pressure wheel 61 is connected to the motor 510. Four mounting grooves 62 are arranged at equal angles on both ends of the pressure wheel 61. An inner support block 63 is installed on the inner side of the mounting groove 62. Four mounting seats 64 are arranged at equal angles on the outer side of the pressure wheel 61. Two mounting shafts 65 are symmetrically installed at the bottom end of each mounting seat 64. Bolts 66 are threadedly engaged at the ends of the mounting shafts 65. The mounting shafts 65 penetrate the pressure wheel 61 and the inner support block 63 for installation. The outer side of the mounting seat 64 is connected to a pressure block 67.

[0048] By setting the pressure assembly 6, before performing the pressure test, the operator can select four pressure blocks 67 of a certain size, and respectively pass the two mounting shafts 65 fixedly connected at the bottom end of the pressure block 67 through the mounting holes of the corresponding mounting seats 64, and then pass through the mounting holes on the surface of the pressure wheel 61, and place the inner support block 63 on the inner side of the mounting groove 62 according to the shape. The mounting shaft 65 passes through the inner mounting hole of the inner support block 63 and is fixed to the end of the inner support block 63 by bolts 66, so that the pressure block 67 and the pressure wheel 61 form a whole. The inner support block 63 provides support force for the pressure block 67 and the mounting seat 64 on the inner side of the mounting groove 62. When performing the pressure test, the operator starts the electric push rod 4, so that the electric push rod 4 drives the mounting plate 51 to move downward, and the two sets of mounting rods 52 at the bottom end of the mounting plate 51 drive the pressure wheel 61 to move toward the surface of the test sample, and the surface of the pressure wheel 61 contacts the surface of the test sample, and the motor 510 is started, and the motor 510 drives the pressure wheel 61 rotates, and the pressure wheel 61 drives the pressure block 67 to rotate. When the pressure block 67 contacts the surface of the test sample during rotation, each contact provides an extrusion force on the surface of the test sample. After each pressure block 67 passes, the slider 55 slides in the inner groove of the mounting rod 52, presses the spring 54 upward, and presses the pressure sensor 53. The spring 54 provides shock absorption during the pressure test for the pressure wheel 61 between the two sliders 55 to avoid damage to the surface of the pressure wheel 61 and the pressure block 67 caused by excessive pressure. At the same time, the pressure sensor 53 records the pressure data every time the slider 55 presses the corresponding spring 54, so that the operator can compare the pressure resistance of the test sample through the pressure data to ensure the stability of the pressure resistance of the road. The operator can also judge whether the road quality is compliant by the deformation of the test sample surface after the pressure wheel 61 and the pressure block 67 continue to squeeze the test sample surface.

[0049] like Figures 7 to 9 As shown, the scraping assembly 7 includes a rotating wheel 71, the rotating shaft of which is nested and installed on the inner side of two sliders 59, the rotating wheel 71 rotates between the two sliders 59, the outer side of the rotating wheel 71 is connected with a scraping chain 72, the surface of the scraping chain 72 is evenly distributed and installed with scraping heads 73, the end of the rotating wheel 71 is connected with a pulley group 74, one pulley in the pulley group 74 is sleeved on the output shaft of the motor 510, an auxiliary plate 75 is installed on the inner side of the box body 1, the auxiliary plate 75 slides on the inner side of the box body 1, an auxiliary scraping groove 76 is arranged on the inner side of the auxiliary plate 75, the scraping head 73 slides inside the auxiliary scraping groove 76, and the bottom end of the auxiliary plate 75 is connected with a heating plate 77;

[0050] By setting the scraping assembly 7, the electric push rod 4 pushes the mounting plate 51 to move downward, and the two mounting rods 56 follow and move toward the test sample. The scraping head 73 located at the bottom end of the scraping chain 72 passes through the auxiliary scraping groove 76 and contacts the surface of the test sample. At the same time, the rotating wheel 71 and the pressure wheel 61 are connected through the pulley group 74, so that the motor 510 can drive the rotating wheel 71 to rotate during the process of driving the pressure wheel 61 to rotate. The rotating wheel 71 drives the scraping chain 72 to rotate. When the scraping chain 72 rotates, the scraping head 73 scrapes on the inner side of the auxiliary scraping groove 76. The auxiliary scraping groove 76 guides the scraping test of the scraping head 73. During the scraping process of the scraping head 73, due to the change in the scraping depth, the two sliders 59 slide on the inner side of the corresponding mounting rods 56 respectively, and the sliders 59 squeeze the spring upward. Second 58, spring second 58 contracts and squeezes pressure sensor second 57 upward. Pressure sensor second 57 can obtain the scratch pressure data in the scratch test in time. During the test, motor 510 is turned off and electric push rod 4 is reset. The operator can continue to push auxiliary plate 75 inward manually to make heating plate 77 located in the area after pressure wheel 61 performs pressure test, start heating plate 77, and transfer heat to the surface of the test sample to simulate the situation of real roads being exposed to the sun and tire pressure in high temperature weather. By using pulley group 74 to drive pressure wheel 61 and scratch chain 72, the test sample can be tested for pressure resistance and scratch resistance at the same time, without the need to replace special test equipment, thereby improving the detection efficiency of the test sample, reducing the operating difficulty of the operator, and facilitating use.

[0051] like Figure 7 and Fig.10 As shown, the auxiliary component 8 includes a mounting frame 81, which is mounted on the inner side of the box body 1, and the mounting frame 81 slides on the inner side of the box body 1. A collecting tank 1 82 is mounted on the inner side of the mounting frame 81, and a collecting tank 2 820 is nested and mounted on the inner side of the collecting tank 1 82. A nozzle 83 is mounted on one side of the mounting frame 81, and the nozzle 83 is connected to a water pump 84 through a pipeline. The water pump 84 is connected to a water tank 85 through a pipeline. The water tank 85 is mounted on one side of the box body 1. A sealing plug 86 is connected to the inner edge of the collecting tank 1 82, and one side of the sealing plug 86 is connected to a fixing fixture 87, and the fixing fixture 87 is mounted on the inner side of the mounting frame 81.

[0052] By setting the auxiliary component 8, the operator starts the water pump 84 to make the water in the water tank 85 flow out from the nozzle 83 through the pipeline, and the nozzle 83 sprays the water onto the surface of the test sample. At this time, the electric push rod 4 is started to repeat the above test operation to simulate the pressure condition of the road in rainy days. A sealing plug 86 is installed on the outside of the fixing fixture 87, so that the water sprayed by the nozzle 83 will not flow out from the side wall of the test sample, and the water will not flow out along the edge of the collection pool 1 82. The operator can observe the collection pool 2 820 made of transparent acrylic material to check whether there is any Water can be used to determine whether there are cracks on the test sample during the pressure test, so that the operator can observe the test effect. After the test, the operator can pull out the collection pool 1 82 and the collection pool 2 820 from the inside of the mounting frame 81, pour out the water inside the collection pool 1 82 and the collection pool 2 820, and use the nozzle 83 to spray water on the surface of the test sample to simulate the squeezing and scraping forces on the ground in rainy conditions, so as to avoid a single test result that cannot reflect the squeezing force of heavy-loaded vehicles on the ground and the scraping of objects on the road surface in real conditions, so as to make the test result more convincing.

[0053] The working principle of the technical solution provided by the present invention is as follows:

[0054] The operator first places the test sample on the top of the collection pool 2 820, and uses the fixing clamp 87 to clamp and fix the test sample to limit the freedom of the test sample to prevent the test sample from shifting during the test and affecting the test results. The operator then pushes the mounting frame 81 into the inner side of the box 1 to allow the test plate to enter the inner side of the box 1, and pushes the auxiliary plate 75 into the inner side of the box 1 to align the position of the auxiliary scraping groove 76 with the scraping chain 72 to provide guidance for the scraping test and avoid repeated scraping position overlap. The operator starts the driving slide rail 2 to make the mounting block 3 slide on the inner side of the driving slide rail 2, thereby driving the electric push rod 4 to move to the test area.

[0055] Before conducting a pressure test, the operator can select four pressure blocks 67 of one size, and pass the two mounting shafts 65 fixedly connected at the bottom of the pressure block 67 through the mounting holes of the corresponding mounting seats 64 respectively, and then pass through the mounting holes on the surface of the pressure wheel 61, and place the inner support block 63 on the inner side of the mounting groove 62 according to the shape. The mounting shaft 65 passes through the inner mounting hole of the inner support block 63 and is fixed to the end of the inner support block 63 by bolts 66, so that the pressure block 67 and the pressure wheel 61 form a whole. The inner support block 63 provides supporting force for the pressure block 67 and the mounting seat 64 on the inner side of the mounting groove 62. When conducting a pressure test, the operator starts the electric push rod 4, so that the electric push rod 4 drives the mounting plate 51 to move downward, and the two sets of mounting rods 52 at the bottom of the mounting plate 51 drive the pressure wheel 61 to move toward the surface of the test sample, and the surface of the pressure wheel 61 contacts the surface of the test sample, and the motor 510 is started, and the motor 510 drives the pressure wheel 61 to rotate The pressure wheel 61 drives the pressure block 67 to rotate. When the pressure block 67 contacts the surface of the test sample during rotation, each contact provides an extrusion force on the surface of the test sample. After each pressure block 67 passes, the slider 55 slides in the inner groove of the mounting rod 52, presses the spring 54 upward, and presses the pressure sensor 53. The spring 54 provides shock absorption for the pressure wheel 61 between the two sliders 55 during the pressure test to prevent the pressure wheel 61 and the pressure block 67 from being damaged due to excessive pressure. At the same time, the pressure sensor 53 records the pressure data every time the slider 55 presses the corresponding spring 54, so that the operator can compare the pressure resistance of the test sample through the pressure data to ensure the stability of the pressure resistance of the road. The operator can also judge whether the road quality is compliant by the deformation of the test sample surface after the pressure wheel 61 and the pressure block 67 continue to squeeze the test sample surface.

[0056] The electric push rod 4 pushes the mounting plate 51 to move downward, and the two mounting rods 56 follow and move toward the test sample. The scraping head 73 at the bottom end of the scraping chain 72 passes through the auxiliary scraping groove 76 and contacts the surface of the test sample. At the same time, the rotating wheel 71 and the pressure wheel 61 are connected through the pulley group 74, so that the motor 510 can drive the rotating wheel 71 to rotate during the rotation of the pressure wheel 61. The rotating wheel 71 drives the scraping chain 72 to rotate. When the scraping chain 72 rotates, the scraping head 73 scrapes on the inner side of the auxiliary scraping groove 76. The auxiliary scraping groove 76 guides the scraping test of the scraping head 73. During the scraping process of the scraping head 73, due to the change in the scraping depth, the two sliders 59 are respectively moved on the corresponding mounting rods 2 56 slides inwardly, the slider 59 presses the spring 58 upward, the spring 58 contracts, and presses the pressure sensor 57 upward. The pressure sensor 57 can obtain the scratch pressure data in the scratch test in time. During the test, the motor 510 is turned off and the electric push rod 4 is reset. The operator can continue to push the auxiliary plate 75 inward manually to make the heating plate 77 located in the area after the pressure wheel 61 performs the pressure test, start the heating plate 77, and transfer heat to the surface of the test sample to simulate the situation of real roads being exposed to the sun and tire pressure in high temperature weather.

[0057] The operator starts the water pump 84 to make the water in the water tank 85 flow out from the nozzle 83 through the pipeline, and the nozzle 83 sprays water onto the surface of the test sample. At this time, the electric push rod 4 is started to repeat the above test operation to simulate the pressure situation under rainy road conditions. A sealing plug 86 is installed on the outside of the fixing fixture 87, so that the water sprayed by the nozzle 83 will not flow out from the side wall of the test sample, and the water will be prevented from flowing out along the edge of the collection pool 1 82. The operator can observe the collection pool 2 820 made of transparent acrylic material to see whether there is water inside and judge whether there are cracks on the test sample during the pressure test, so as to facilitate the operator to observe the test effect. After the test is completed, the operator can draw out the collection pool 1 82 and the collection pool 2 820 from the inside of the mounting frame 81 and pour out the water inside the collection pool 1 82 and the collection pool 2 820.

[0058] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, but those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0059] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A road maintenance pavement quality detection device, characterized in that: It comprises a box body, a driving slide rail is arranged at the top of the box body, a mounting block is arranged at the inner side of the driving slide rail, and an electric push rod is arranged at the bottom end of the mounting block; It also includes an extrusion assembly, which is installed at the bottom end of the electric push rod and is used to provide an extrusion force; A pressure assembly, the pressure assembly is installed on the inner side of the extrusion assembly, and the pressure assembly is used to perform a pressure test on the test sample; A scraping assembly, the scraping assembly is installed on the inner side of the extrusion assembly, and the scraping assembly is used to cooperate with the pressure assembly for transmission, and simultaneously perform a scratch resistance test on the test sample while performing a pressure test; An auxiliary component, which is installed on the inner side of the box and is used to spray water on the surface of the test sample to simulate rain conditions and assist in pressure testing and anti-scratch testing; The extrusion assembly includes a mounting plate, the mounting plate is mounted on the end of the electric push rod, the bottom end of the mounting plate is symmetrically connected to two mounting rods 1, a pressure sensor 1 is mounted on the inner side of each mounting rod 1, the bottom end of the pressure sensor 1 is connected to a spring 1, and the bottom end of the spring 1 is connected to a slider 1; The slider 1 slides in the inner groove of the corresponding mounting rod 1, the bottom end of the mounting plate is symmetrically connected to two mounting rods 2, a pressure sensor 2 is installed on the inner side of each mounting rod 2, the bottom end of the pressure sensor 2 is connected to a spring 2, the bottom end of the spring 2 is connected to a slider 2, the slider 2 slides in the inner groove of the corresponding mounting rod 2, and the end of the slider 1 is connected to a motor; The pressure assembly includes a pressure wheel, which is installed between the two sliders. The rotating shaft of the pressure wheel is connected to the motor. Four mounting grooves are arranged at equal angles on both side ends of the pressure wheel, and inner support blocks are installed inside the mounting grooves. Four mounting seats are installed at equal angles on the outer side of the pressure wheel, and two mounting shafts are symmetrically installed at the bottom of each mounting seat. Bolts are threadedly engaged at the end of the mounting shaft. The mounting shaft passes through the pressure wheel and the inner support block for installation, and the outer side of the mounting seat is connected to a pressure block.

2. The road maintenance pavement quality detection device according to claim 1, characterized in that: The scraping assembly comprises a rotating wheel, a rotating shaft of which is nested and installed on the inner sides of the two sliding blocks 2, the rotating wheel rotates between the two sliding blocks 2, and a scraping chain is connected to the outer side of the rotating wheel.

3. The road maintenance pavement quality detection device according to claim 2, characterized in that: The scraping heads are evenly distributed and installed on the surface of the scraping chain. The end of the rotating wheel is connected to a pulley group. One pulley in the pulley group is sleeved on the output shaft of the motor.

4. The road maintenance pavement quality detection device according to claim 3, characterized in that: An auxiliary plate is installed on the inner side of the box body, and the auxiliary plate slides on the inner side of the box body. An auxiliary scraping groove is arranged on the inner side of the auxiliary plate, and the scraping head slides inside the auxiliary scraping groove. The bottom end of the auxiliary plate is connected to a heating plate.

5. The road maintenance pavement quality detection device according to claim 4, characterized in that: The auxiliary component includes a mounting frame, which is mounted on the inner side of the box body and slides on the inner side of the box body. A collecting pool 1 is mounted on the inner side of the mounting frame, a collecting pool 2 is nested on the inner side of the collecting pool 1, and a nozzle is mounted on one side of the mounting frame.

6. The road maintenance pavement quality detection device according to claim 5, characterized in that: The nozzle is connected to a water pump through a pipeline, the water pump is connected to a water tank through a pipeline, the water tank is installed on one side of the box body, the inner edge of the collection tank is connected to a sealing plug, one side of the sealing plug is connected to a fixing clamp, and the fixing clamp is installed on the inner side of the mounting frame.

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