Asphalt pavement coring anti-pollution device

Abstract

This utility model provides a pollution prevention device for asphalt pavement core sampling, comprising: a splash guard, a drain outlet on the side of the splash guard, a waste liquid collection tray below the drain outlet, and an extension tube that engages with the upper part of the splash guard. This utility model's asphalt pavement core sampling pollution prevention device, by adding an extension tube that engages with the upper part of the splash guard, achieves adjustable height of the splash guard, solving the problem in existing pollution prevention devices where the tube height is fixed and cannot adapt to different core sampling depths and stratified sampling.

Description

Technical Field

[0001] This utility model relates to the field of road construction technology, specifically to an asphalt pavement core sampling and pollution prevention device. Background Technology

[0002] Core sampling of asphalt pavement is an essential part of road maintenance, quality inspection, and scientific research. By obtaining asphalt pavement samples through core sampling, key indicators such as asphalt performance, gradation, compaction degree, and thickness can be tested, thereby assessing the pavement's service condition, guiding the formulation of maintenance measures, and ensuring road safety and service life.

[0003] During coring operations, the drill bit experiences intense friction with the road surface material, generating a large amount of dust. Furthermore, to prevent overheating and damage to the drill bit, cooling water is typically used during coring, which carries a significant amount of asphalt debris, mud, and other impurities. Existing coring pollution prevention devices generally use a cylinder to enclose the coring area to reduce dust emissions and collect cooling water and impurities. However, the fixed height of existing cylinders means that when the drilling depth is large or layered sampling is required, the fixed-height cylinder cannot effectively cover the drill bit's working stroke, causing mud splashing beyond the sealed cavity. Existing adjustment methods mostly rely on external pads or manual cutting modifications, which are cumbersome, inefficient, and affect the practicality and effectiveness of the pollution prevention device. Utility Model Content

[0004] The purpose of this invention is to provide an anti-pollution device for coring asphalt pavement, which solves the problem that the height of the cylinder of the existing anti-pollution device is fixed and cannot adapt to different coring depths and layered sampling.

[0005] This utility model is achieved through the following technical solution, specifically:

[0006] A core sampling and pollution prevention device for asphalt pavement includes: a splash guard, a drain outlet opened on the side of the splash guard, and a waste liquid collection tray disposed below the drain outlet; it also includes an extension tube that is snapped onto the upper part of the splash guard.

[0007] As an improvement of the extension cylinder in this utility model, the extension cylinder includes a cylindrical body and a conical body connected to the upper part of the cylindrical body, wherein the end of the conical body connected to the cylindrical body is circular.

[0008] Furthermore, the end of the conical cylinder away from the cylindrical cylinder is square; the extension cylinder also includes a cover plate rotatably connected to each square edge of the conical cylinder, and a flexible connecting strip connected between adjacent cover plates.

[0009] As an improvement of the cover plate in this utility model, the cover plate is an isosceles trapezoidal plate.

[0010] As an improvement of the cover plate in this utility model, the lower edge of the cover plate is rotatably connected to the square edge of the conical cylinder, and the upper edge is arc-shaped.

[0011] As an improvement of the cover plate in this utility model, the surface of the cover plate is provided with a transparent observation window.

[0012] As an improvement of this utility model, the extension tube is snapped to the upper part of the splash shield via a snap-fit ​​structure. The snap-fit ​​structure includes multiple snap-fit ​​grooves disposed on the upper part of the side wall of the splash shield and multiple snap-fit ​​protrusions disposed on the inner wall of the extension tube.

[0013] The beneficial effects of this utility model are as follows:

[0014] This invention achieves adjustable splash guard height by adding an extension tube that engages with the upper part of the splash guard. When the coring depth is large or layered sampling is required, the extension tube can be installed or removed as needed to change the height of the splash guard, thereby effectively covering the drill bit's working stroke, preventing mud splashing beyond the sealed cavity, and reducing dust and mud pollution.

[0015] In addition to the technical problems solved by this utility model, the technical features constituting the technical solution, and the advantages brought about by the technical features of these technical solutions as described above, other technical problems that this utility model can solve, other technical features contained in the technical solution, and the advantages brought about by these technical features will be further explained in detail with reference to the accompanying drawings. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of an asphalt pavement core sampling and pollution prevention device according to an embodiment of this utility model;

[0017] Figure 2 This is a partial cross-sectional structural schematic diagram of an asphalt pavement core sampling and pollution prevention device according to an embodiment of this utility model;

[0018] Figure 3 This is a schematic diagram of one state of the extension tube in an embodiment of this utility model;

[0019] Figure 4 This is a schematic diagram of the extension tube in another embodiment of the present invention.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Splash guard; 2. Drain outlet; 3. Waste liquid collection tray; 4. Extension tube; 11. Snap-fit ​​groove; 41. Cylindrical body; 42. Conical body; 421. Cover plate; 422. Flexible connecting strip; 43. Snap-fit ​​protrusion. Detailed Implementation

[0022] The following will be combined with the appendix Figures 1-2 The embodiments of the present utility model are described in detail below. The following embodiments are only used to more clearly illustrate the technical solution of the present utility model, and are therefore merely examples and should not be used to limit the scope of protection of the present utility model. Furthermore, the technical features involved in the various embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0023] In view of the problems existing in the background technology or products, Figure 1 This diagram illustrates the structure of an asphalt pavement core sampling and pollution prevention device according to an embodiment of the present invention. Figure 2 A partial cross-sectional structural schematic diagram of an asphalt pavement core sampling and pollution prevention device according to an embodiment of this utility model is shown. Figure 1 and 2 As shown, this utility model embodiment provides an asphalt pavement core sampling and pollution prevention device, including: a splash guard 1, a drain outlet 2 opened on the side of the splash guard 1, and a waste liquid collection tray 3 disposed below the drain outlet 2; it also includes an extension tube 4 that is snapped onto the upper part of the splash guard 1.

[0024] Specifically, the splash guard 1 is made of sheet metal and can be cylindrical, square, or other shapes suitable for enclosing the coring area. The height and dimensions of the splash guard 1 are preset according to the actual coring depth and the size of the coring device, for example, an inner diameter of 155mm and a height of 165mm. The bottom of the splash guard 1 is sealed with putty to prevent leakage. The drain outlet 2 is located on the upper part of the side wall of the splash guard 1 and is inclined downward to allow the waste liquid to flow into the waste liquid collection tray 3 under the direction of gravity. The waste liquid collection tray 3 is used to collect the waste liquid containing asphalt debris, mud, and cooling water flowing out from the drain outlet 2. The connection between the extension tube 4 and the splash guard 1 can be a snap-fit ​​type, a threaded type, or other convenient and quick connection method for easy installation and disassembly. Preferably, the extension tube 4 is snapped to the upper part of the splash guard 1 by a snap-fit ​​structure, which includes multiple snap-fit ​​grooves 11 provided on the upper part of the side wall of the splash guard 1 and multiple snap-fit ​​protrusions 43 correspondingly provided on the inner wall of the extension tube 4. For example, the buckle groove 11 is a right-angled buckle groove, and the buckle protrusion 43 is a cylindrical protrusion that matches the right-angled buckle groove.

[0025] Continue reading Figure 1 and 2 In one implementation, the extension cylinder 4 includes a cylindrical body 41 and a conical body 42 connected to the upper part of the cylindrical body 41, wherein one end of the conical body 42 connected to the cylindrical body 41 is circular.

[0026] Specifically, the conical cylinder 42 makes the upper opening area of ​​the extension cylinder 4 larger, which facilitates the insertion of the core sampling device and also helps to gather the splashed cooling water and mixed waste liquid inward, reducing the outward diffusion of waste liquid and thus improving the pollution prevention effect.

[0027] Continue reading Figure 1 and 2 In one implementation, the end of the conical cylinder 42 away from the cylindrical cylinder 41 is square; the extension cylinder 4 further includes a cover plate 421 rotatably connected to each square edge of the conical cylinder 42, and a flexible connecting strip 422 connected between adjacent cover plates 421.

[0028] Specifically, the end of the conical cylinder 42 away from the cylindrical cylinder 41 is designed as a square, which serves to provide a stable and easy-to-seal boundary for the rotational connection of the cover plate 421. The square end of the conical cylinder 42 is used to achieve a rotational connection with the cover plate 421. The cover plate 421 is fixed to the square edge of the conical cylinder 42 by a hinge or rotating rod, so that the cover plate can be freely rotated and opened around the fixed point to adjust the closing angle. The flexible connecting strip 422 connecting adjacent cover plates 421 is made of wear-resistant and elastic material such as rubber or elastic plastic, and is connected around the edge of each cover plate along the square edge to connect multiple cover plates, ensuring the sealing between cover plates and the overall tightness. It also has a buffering and adjustment function, and can adapt to different angle changes during opening and closing, preventing damage caused by stress concentration due to rigid connection.

[0029] Figure 3 A schematic diagram of one state of the extension tube in an embodiment of this utility model is shown. For example... Figure 3 As shown, in this embodiment, the cover plate 421 is rotatably connected via the square end of the conical cylinder 42. A flexible connecting strip 422 enables the linkage and sealing of multiple cover plates 421, thus providing a splash guard function on the extension cylinder 4. When open, it facilitates the entry and exit of the coring device; when closed, the flexible connecting strip 422 effectively blocks splashes generated during coring, preventing the outward spread of waste liquid and contaminants, thereby improving the device's anti-pollution effect. Furthermore, the opening size of the splash guard can be easily adjusted by opening and closing the cover plate 421 to accommodate different coring tools and operational needs.

[0030] Preferably, the cover plate 421 is an isosceles trapezoid. The non-parallel sides of the isosceles trapezoid are of equal length, which allows the cover plate 421 to fit together more tightly when closed, enhancing the anti-pollution effect, and also makes it easier to lift and flip when opened, facilitating operation.

[0031] Figure 4 A schematic diagram of the extension tube in another embodiment of the present invention is shown. Figure 4As shown, preferably, the lower edge of the cover plate 421 is rotatably connected to the square edge of the conical cylinder 42, and the upper edge is arc-shaped. The arc-shaped upper edge can better fit the core-retrieving tool, forming a more effective seal.

[0032] Preferably, the surface of the cover plate 421 is provided with a transparent observation window. The transparent observation window can be made of, for example, transparent plastic or glass. The observation window allows the operator to observe the coring process without opening the cover plate, such as observing the coring depth, judging the coring quality, etc., and promptly identifying and adjusting any problems. The position and size of the observation window can be adjusted according to actual needs.

[0033] In the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, technical terms such as "set", "equipped with", "connected", and "installed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the embodiments of this utility model can be understood according to the specific circumstances.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A pollution prevention device for asphalt pavement core sampling, comprising: The splash guard (1), the drain outlet (2) opened on the side of the splash guard (1), and the waste liquid collection tray (3) set below the drain outlet (2); characterized in that it further includes an extension tube (4) that is snapped into the upper part of the splash guard (1).

2. The asphalt pavement core sampling and pollution prevention device as described in claim 1, characterized in that, The extension tube (4) includes a cylindrical body (41) and a conical body (42) connected to the upper part of the cylindrical body (41). The end of the conical body (42) connected to the cylindrical body (41) is circular.

3. The asphalt pavement core sampling and pollution prevention device as described in claim 2, characterized in that, The conical cylinder (42) has a square end away from the cylindrical cylinder (41); the extension cylinder (4) also includes a cover plate (421) rotatably connected to each square edge of the conical cylinder (42), and a flexible connecting strip (422) connected between adjacent cover plates (421).

4. The asphalt pavement core sampling and pollution prevention device as described in claim 3, characterized in that, The cover plate (421) is an isosceles trapezoidal plate.

5. An asphalt pavement core sampling and pollution prevention device as described in claim 3 or 4, characterized in that, The lower edge of the cover plate (421) is rotatably connected to the square edge of the conical cylinder (42), and the upper edge is arc-shaped.

6. The asphalt pavement core sampling and pollution prevention device as described in claim 3, characterized in that, The surface of the cover plate (421) is provided with a transparent observation window.

7. The asphalt pavement core sampling and pollution prevention device as described in claim 1, characterized in that, The extension tube (4) is snapped to the upper part of the splash shield (1) by a snap-fit ​​structure. The snap-fit ​​structure includes multiple snap-fit ​​grooves (11) provided on the upper part of the side wall of the splash shield (1) and multiple snap-fit ​​protrusions (43) provided on the inner wall of the extension tube (4).

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