Asphalt pavement strength detection device

Abstract

The utility model discloses an asphalt pavement strength detection device, including box body, down-pressing plate, threaded rod, placing plate and scraping strip, down-pressing plate is movably connected to the inner wall of box body, threaded rod is movably connected to the top of down-pressing plate through bearing, placing plate is fixedly installed at the bottom of two sides of the inner wall of box body, and the scraping strip is fixed on the bottom of box body. And the scraping strip is movably connected to the inner wall of the placing plate. Through the arrangement of the movable groove, the movable plate, the positioning plate and the driving assembly, the problems that a solid asphalt sample cannot be positioned when the lower pressing plate downwards detects the strength of the asphalt sample due to lack of a positioning structure for the solid asphalt sample, and the solid asphalt sample cannot be positioned when the lower pressing plate downwards moves and applies pressure to the solid asphalt are solved; the solid asphalt strength detection device solves the problems that the solid asphalt cannot be stably detected at the top of a placement plate due to the fact that the asphalt has certain viscosity and plasticity and can slide and displace under the action of force, and then the precision of solid asphalt strength detection is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of road surface strength detection, in particular to an asphalt road surface strength detection device. Background Art

[0002] Asphalt pavement refers to various types of pavement paved with road asphalt materials mixed into mineral materials. Asphalt binder improves the ability of paving aggregate to resist damage to the road surface caused by traffic and natural factors, making the road surface smooth, dust-free, waterproof and durable. Therefore, asphalt pavement is a new type of high-grade pavement in road construction and is the most widely used device for testing the strength of highway asphalt pavement. The asphalt structural layer of the asphalt pavement itself belongs to the category of flexible pavement, but its base layer can also use rigid cement concrete or semi-rigid hydraulic materials in addition to flexible materials. The existing technology for asphalt pavement strength testing is to collect a piece of asphalt sample. Asphalt samples refer to various asphalt material samples collected from different locations to check the quality of asphalt products. These samples can be used for routine and non-routine inspections to evaluate the performance and use of asphalt. Therefore, solid asphalt samples need to be placed on special strength testing equipment for testing.

[0003] At present, the Chinese utility model with publication number CN216160333U discloses an asphalt pavement strength detection device, which belongs to the field of pavement strength detection technology, including a first box body, a threaded hole is opened on the top of the first box body, a first threaded rod is rotatably connected in the threaded hole, the bottom end of the first threaded rod extends into the first box body and is rotatably connected to a pressure plate, the bottom of the pressure plate is fixedly connected to an extrusion column, a placement groove is opened on the inner bottom of the first box body, a push block is slidably connected in the placement groove, the bottom of the first box body is fixedly connected to the second box body, the inner wall of the second box body is rotatably connected to a rotating rod, the rotating rod is fixedly connected to a first bevel gear, the second box body is fixedly connected to a third box body, and the third box body is connected to a moving assembly, the moving assembly includes a second threaded rod and a moving block, and by setting the push block, the broken asphalt sample blocks after detection can be scraped off, and the U-shaped opening is set to facilitate cleaning of broken asphalt sample blocks.

[0004] Based on the search of the above patents and in combination with the equipment in the prior art, it was found that during the application of the above equipment, due to the lack of a positioning structure for the solid asphalt sample, the solid asphalt sample cannot be positioned when the lower pressure plate is pressed downward to perform strength testing on the asphalt sample. When the lower pressure plate moves downward and applies pressure to the solid asphalt, due to the certain viscosity and plasticity of the asphalt, sliding and displacement will occur under the action of force, making it impossible for the solid asphalt to be stably tested on the top of the placement plate, thereby reducing the accuracy of the solid asphalt strength test. Utility Model Content

[0005] In order to solve the problems raised in the above-mentioned background technology, the purpose of the present utility model is to provide an asphalt pavement strength detection device, which has the advantage of facilitating the positioning of asphalt samples, and solves the problem that due to the lack of a positioning structure for solid asphalt samples, the solid asphalt samples cannot be positioned when the lower pressure plate is pressed downward to perform strength detection on the asphalt samples. When the lower pressure plate moves downward and applies pressure to the solid asphalt, due to the certain viscosity and plasticity of the asphalt, sliding and displacement will occur under the action of force, thereby making it impossible for the solid asphalt to be stably detected on the top of the placement plate, thereby reducing the accuracy problem of solid asphalt strength detection.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an asphalt pavement strength detection device, comprising a box body, a lower pressure plate, a threaded rod, a placement plate and a scraper strip, the lower pressure plate being movably connected to the inner wall of the box body, the threaded rod being movably connected to the top of the lower pressure plate through a bearing, the placement plate being fixedly installed at the bottom on both sides of the inner wall of the box body, the scraper strip being movably connected to the inner wall of the placement plate, movable grooves being provided on both sides of the top of the placement plate, the inner wall of the movable groove being movably connected to a movable plate, the surface of the movable plate being movably connected to a positioning plate, the inner wall of the movable groove being fixedly installed with a driving assembly, and downward pressure assemblies being provided on the front and rear sides of both sides of the movable plate.

[0007] As a preferred embodiment of the present invention, the driving assembly includes a dual-axis motor, which is fixedly mounted on the inner wall of the movable groove, and the output end of the dual-axis motor is fixedly connected to a screw, a screw hole is opened on the surface of the movable plate, and the surface of the screw is threadedly connected to the inner wall of the screw hole.

[0008] As a preferred embodiment of the present invention, the pressing assembly includes a slide groove, which is opened on the front and rear sides of both sides of the movable plate, and both sides of the inner wall of the slide groove are fixedly connected to the limit rod, the surface of the limit rod is movably connected with a slider, and the surface of the limit rod is sleeved with a spring, one end of the spring is fixedly connected to the top of the inner wall of the slide groove, and the other end of the spring is fixedly connected to the top of the slider, and both sides of the slider are fixedly connected to the two sides of the inner wall of the positioning plate.

[0009] As a preferred embodiment of the present invention, anti-slip grooves are provided on the inner side of the positioning plate, and the anti-slip grooves are arranged in several groups and are distributed at equal distances.

[0010] As a preferred embodiment of the present invention, movable grooves are provided on the front sides of both sides of the box body, and the inner walls of the movable grooves are movably connected to protective baffles.

[0011] As a preferred embodiment of the present invention, a rectangular groove is provided on the surface of the protective baffle, and an observation plate is fixedly connected to the inner wall of the rectangular groove.

[0012] As a preferred embodiment of the present invention, grooves are provided at the bottoms of both sides of the inner wall of the box, and the inner walls of the grooves are movably connected to the collection boxes.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] 1. The utility model provides a movable groove, a movable plate, a positioning plate and a driving component, so that the driving component can effectively drive the movable plate to move on the inner wall of the movable groove, so that the movable plate drives the positioning plate to clamp and position the asphalt sample, thereby improving the stability during asphalt testing, and solves the problem that the solid asphalt sample cannot be positioned when the lower pressure plate is pressed downward to perform strength testing on the asphalt sample due to the lack of a positioning structure for the solid asphalt sample. When the lower pressure plate moves downward and applies pressure to the solid asphalt, the asphalt has certain viscosity and plasticity, and sliding and displacement will occur under the action of force, so that the solid asphalt cannot be stably tested on the top of the placement plate, thereby reducing the accuracy problem during solid asphalt strength testing, and has the advantage of being easy to position the asphalt sample.

[0015] 2. The utility model is provided with a driving assembly, which can effectively enable the dual-axis motor to drive the screw to rotate on the inner wall of the movable groove. The screw rotates on the inner wall of the screw hole, thereby driving the movable plate to move inward, so that the positioning plate can clamp and position asphalt samples of different sizes.

[0016] 3. The utility model provides a downward pressure component, which can effectively limit the limit rod on the inner wall of the slide groove to limit the spring. The action of the spring pushes the slider to move downward on the surface of the limit rod, and the slider drives the positioning plate to move downward, so that the positioning plate can position asphalt samples of different thicknesses, and at the same time avoid the positioning plate affecting the downward pressure of the lower pressure plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the cross-sectional three-dimensional structure of the lower pressure plate of the utility model;

[0019] Figure 3 This is a schematic diagram of the cross-sectional three-dimensional structure of the positioning plate of the utility model.

[0020] In the figure: 1. Box body; 2. Lower pressure plate; 3. Threaded rod; 4. Placement plate; 5. Scraper; 6. Movable groove; 7. Moving plate; 8. Positioning plate; 9. Drive assembly; 91. Dual-axis motor; 92. Screw; 93. Screw hole; 10. Lower pressure assembly; 101. Slide groove; 102. Limit rod; 103. Slider; 104. Spring; 11. Anti-slip groove; 12. Moving groove; 13. Protective baffle; 14. Rectangular groove; 15. Observation plate; 16. Groove; 17. Collection box. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] like Figures 1 to 3 As shown, the utility model provides an asphalt pavement strength detection device, including a box body 1, a lower pressure plate 2, a threaded rod 3, a placement plate 4 and a scraper 5. The lower pressure plate 2 is movably connected to the inner wall of the box body 1, the threaded rod 3 is movably connected to the top of the lower pressure plate 2 through a bearing, the placement plate 4 is fixedly installed at the bottom on both sides of the inner wall of the box body 1, the scraper 5 is movably connected to the inner wall of the placement plate 4, and movable grooves 6 are provided on both sides of the top of the placement plate 4. The inner wall of the movable groove 6 is movably connected to a movable plate 7, and the surface of the movable plate 7 is movably connected to a positioning plate 8. The inner wall of the movable groove 6 is fixedly installed with a driving component 9, and the front and rear sides of both sides of the movable plate 7 are provided with a lower pressure component 10.

[0023] refer to Figure 1 and Figure 2 The driving assembly 9 includes a dual-axis motor 91, which is fixedly mounted on the inner wall of the movable groove 6. The output end of the dual-axis motor 91 is fixedly connected to a screw 92. A screw hole 93 is opened on the surface of the movable plate 7. The surface of the screw 92 is threadedly connected to the inner wall of the screw hole 93.

[0024] As a technical optimization solution of the present invention, by setting up a driving component 9, the dual-axis motor 91 can effectively drive the screw 92 to rotate on the inner wall of the movable groove 6. The screw 92 rotates on the inner wall of the screw hole 93, thereby driving the movable plate 7 to move inward, so that the positioning plate 8 can clamp and position asphalt samples of different sizes.

[0025] refer to Figure 1 and Figure 3The pressing component 10 includes a slide groove 101, which is opened on the front and rear sides of both sides of the movable plate 7. Both sides of the inner wall of the slide groove 101 are fixedly connected to the limit rod 102, and the surface of the limit rod 102 is movably connected with a slider 103. The surface of the limit rod 102 is provided with a spring 104, one end of the spring 104 is fixedly connected to the top of the inner wall of the slide groove 101, and the other end of the spring 104 is fixedly connected to the top of the slider 103. The two sides of the slider 103 are fixedly connected to the two sides of the inner wall of the positioning plate 8.

[0026] As a technical optimization solution of the present invention, by setting up a downward pressing component 10, the limiting rod 102 on the inner wall of the slide groove 101 can effectively limit the spring 104, and the action force of the spring 104 pushes the slider 103 to move downward on the surface of the limiting rod 102, and the positioning plate 8 is driven downward by the slider 103, so that the positioning plate 8 can position asphalt samples of different thicknesses, and at the same time, it can avoid the positioning plate 8 affecting the downward pressure of the lower pressing plate 2.

[0027] refer to Figure 1 and Figure 2 The inner side of the positioning plate 8 is provided with an anti-slip groove 11, and the number of the anti-slip grooves 11 is provided in several groups and is distributed at equal distances.

[0028] As a technical optimization solution of the present invention, by setting the anti-skid groove 11, the anti-skid groove 11 can be effectively opened on the inner side of the positioning plate 8, thereby increasing the friction between the asphalt and the positioning plate 8 and preventing the asphalt from shaking during positioning.

[0029] refer to Figure 1 A movable groove 12 is provided on the front side of both sides of the box body 1, and a protective baffle 13 is movably connected to the inner wall of the movable groove 12.

[0030] As a technical optimization solution of the present invention, by setting a movable groove 12 and a protective baffle 13, when testing the asphalt, the user inserts the protective baffle 13 into the inner wall of the movable groove 12, and the protective baffle 13 can block the front side of the placement plate 4 to prevent asphalt from splashing during testing and causing harm to the user.

[0031] refer to Figure 1 A rectangular groove 14 is formed on the surface of the protective baffle 13 , and an observation plate 15 is fixedly connected to the inner wall of the rectangular groove 14 .

[0032] As a technical optimization solution of the present invention, by providing the rectangular groove 14 and the observation plate 15 , the rectangular groove 14 can be effectively fixed to the observation plate 15 , and the user can observe the detection status of the asphalt inside the box 1 through the observation plate 15 .

[0033] refer to Figure 1The bottom of both sides of the inner wall of the box body 1 is provided with grooves 16, and the inner wall of the groove 16 is movably connected to the collection box 17.

[0034] As a technical optimization solution of the present invention, by setting the groove 16 and the collection box 17, the collection box 17 can be effectively slid into the inner wall of the groove 16. When the asphalt is cleaned by the scraper 5, the asphalt can be discharged into the interior of the collection box 17 through the groove 16 on the top of the placement plate 4, so that the user can collect the asphalt after detection.

[0035] The working principle and use process of the present invention are as follows: when in use, the user first puts the asphalt to the top of the placement plate 4, and then the user rotates the threaded rod 3 to drive the lower pressing plate 2 to move downward. When the lower pressing plate 2 is close to the asphalt sample, the limiting rod 102 on the inner wall of the slide groove 101 limits the spring 104, and the action of the spring 104 pushes the slider 103 to move downward on the surface of the limiting rod 102, and drives the positioning plate 8 to move downward through the slider 103, so that the positioning plate 8 can fit with the top of the placement plate 4, and then starts the dual-axis motor 91 to drive the screw 92 to rotate on the inner wall of the movable groove 6, and the screw 92 rotates on the inner wall of the screw hole 93, thereby driving the movable plate 7 to move inward, so that the positioning plate 8 can fit with the asphalt. The sample is clamped and positioned. When the asphalt is positioned, the threaded rod 3 is rotated again to move the lower pressure plate 2 downward, so that the lower pressure plate 2 can complete the strength test of the asphalt, thereby preventing the asphalt sample from sliding and displacing and affecting the detection structure. In the process of testing the asphalt, the user inserts the protective baffle 13 into the inner wall of the movable groove 12. The protective baffle 13 can block the asphalt to prevent the particles generated during the asphalt testing from splashing and causing harm to the user, thereby improving the safety of asphalt testing. After the asphalt is tested, the scraper 5 is pulled to scrape the asphalt, large pieces of asphalt can be scraped out, and the granular asphalt can be hung into the inside of the collection box 17 through the groove 16 on the top of the placement plate 4, thereby facilitating the collection of the asphalt.

[0036] To sum up: this asphalt pavement strength testing device, by setting a movable groove 6, a movable plate 7, a positioning plate 8 and a driving component 9, can effectively enable the driving component 9 to drive the movable plate 7 to move on the inner wall of the movable groove 6, so that the movable plate 7 drives the positioning plate 8 to clamp and position the asphalt sample, thereby improving the stability during asphalt testing, and solving the problem of being unable to position the solid asphalt sample when the lower pressure plate is pressed down to perform strength testing on the asphalt sample due to the lack of a positioning structure for the solid asphalt sample. When the lower pressure plate moves downward and applies pressure to the solid asphalt, due to the certain viscosity and plasticity of the asphalt, sliding and displacement will occur under the action of force, thereby making it impossible for the solid asphalt to be stably tested on the top of the placement plate, thereby reducing the accuracy problem during solid asphalt strength testing.

[0037] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0038] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An asphalt pavement strength testing device, comprising a box (1), a lower pressure plate (2), a threaded rod (3), a placement plate (4) and a scraper (5), characterized in that: The lower pressure plate (2) is movably connected to the inner wall of the box body (1), the threaded rod (3) is movably connected to the top of the lower pressure plate (2) through a bearing, the placement plate (4) is fixedly installed at the bottom of both sides of the inner wall of the box body (1), the scraper (5) is movably connected to the inner wall of the placement plate (4), both sides of the top of the placement plate (4) are provided with movable grooves (6), the inner wall of the movable groove (6) is movably connected to a movable plate (7), the surface of the movable plate (7) is movably connected to a positioning plate (8), the inner wall of the movable groove (6) is fixedly installed with a driving component (9), and the front and rear sides of both sides of the movable plate (7) are provided with lower pressure components (10).

2. The asphalt pavement strength detection device according to claim 1, characterized in that: The driving assembly (9) includes a dual-axis motor (91), the dual-axis motor (91) is fixedly mounted on the inner wall of the movable groove (6), the output end of the dual-axis motor (91) is fixedly connected to a screw (92), a screw hole (93) is provided on the surface of the movable plate (7), and the surface of the screw (92) is threadedly connected to the inner wall of the screw hole (93).

3. The asphalt pavement strength testing device according to claim 1, characterized in that: The pressing assembly (10) includes a slide groove (101), the slide groove (101) is opened on the front side and the rear side of both sides of the movable plate (7), both sides of the inner wall of the slide groove (101) are fixedly connected to the limiting rod (102), the surface of the limiting rod (102) is movably connected to the slider (103), the surface of the limiting rod (102) is provided with a spring (104), one end of the spring (104) is fixedly connected to the top of the inner wall of the slide groove (101), the other end of the spring (104) is fixedly connected to the top of the slider (103), and both sides of the slider (103) are fixedly connected to both sides of the inner wall of the positioning plate (8).

4. The asphalt pavement strength detection device according to claim 1, characterized in that: An anti-slip groove (11) is provided on the inner side of the positioning plate (8), and the anti-slip grooves (11) are arranged in several groups and are distributed at equal distances.

5. The asphalt pavement strength testing device according to claim 1, characterized in that: The front sides of both sides of the box body (1) are provided with movable grooves (12), and the inner walls of the movable grooves (12) are movably connected to protective baffles (13).

6. The asphalt pavement strength testing device according to claim 5, characterized in that: A rectangular groove (14) is provided on the surface of the protective baffle (13), and an observation plate (15) is fixedly connected to the inner wall of the rectangular groove (14).

7. The asphalt pavement strength testing device according to claim 1, characterized in that: Grooves (16) are provided at the bottoms of both sides of the inner wall of the box body (1), and the inner walls of the grooves (16) are movably connected to a collection box (17).

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