A sealing material coating auxiliary device for detecting a road surface water permeability coefficient

Abstract

The utility model provides a kind of sealing material coating auxiliary device for road surface water permeability coefficient detection, including concentrically arranged outer positioning ring and inner positioning cylinder, annular through slot is had between outer positioning ring and inner positioning cylinder, detachable connecting rod is equipped on positioning cylinder and multiple connecting pieces are equipped on connecting rod along the circumferential direction interval of connecting rod, and the end of connecting piece away from connecting rod is respectively fixedly connected with outer positioning ring;Rotatable rotating seat and the drive assembly that is transmission connection with rotating seat are equipped in inner positioning cylinder, the axis of rotating seat coincides with the axis of positioning cylinder, scraper is equipped on rotating seat, scraper is located at the opening of annular through slot and the both ends of scraper respectively with the top surface of inner positioning cylinder and the top surface of outer positioning ring abut.The utility model solves the technical problem that manual coating sealing material coating is not uniform or sealing material enters inner circle and affects the accuracy of detection result, produces sealing ring with good sealing property formed by sealing material, and ensures the technical effect of reliable detection result.

Description

Technical Field

[0001] This utility model relates to the field of road surface testing technology, and in particular to an auxiliary device for applying sealing material for testing the permeability coefficient of road surface. Background Technology

[0002] The water permeability of asphalt pavement is an indirect indicator reflecting the gradation of asphalt mixture and an important indicator of the water stability of asphalt pavement. The water permeability coefficient is of great significance for improving the construction quality of asphalt pavement, measuring the traffic conditions of asphalt pavement, preventing water damage to asphalt pavement, and carrying out reasonable pavement maintenance.

[0003] The test method for the permeability coefficient of asphalt pavement in the "Specifications for Field Testing of Highway Subgrade and Pavement" (JTG 3450—2019) includes: placing a plastic ring on the test point on the pavement surface, and drawing circles along the inner and outer sides of the plastic ring with chalk. The area between the outer and inner rings is the area that needs to be sealed with sealant. Currently, the application of sealant is mainly done manually by testing personnel based on experience. During the operation, uneven application of sealant can easily occur, leading to incomplete sealing, or sealant may enter the inner ring, reducing the permeability area and thus affecting the accuracy of the test results. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an auxiliary device for applying sealant to road surface permeability coefficient testing. This device solves the problems of uneven application of sealant or sealant entering the inner ring, which affects the accuracy of test results in existing technologies.

[0005] According to an embodiment of this utility model, a sealing material coating auxiliary device for testing road permeability coefficient includes an outer positioning ring and an inner positioning cylinder arranged concentrically. An annular groove is provided between the outer positioning ring and the inner positioning cylinder. A detachable connecting rod is provided on the inner positioning cylinder, and multiple connecting pieces are spaced apart along the circumference of the connecting rod. The ends of the connecting pieces away from the connecting rod are respectively fixedly connected to the outer positioning ring. A rotatable rotating seat and a driving assembly connected to the rotating seat are provided inside the inner positioning cylinder. The axis of the rotating seat coincides with the axis of the inner positioning cylinder. A scraper is provided on the rotating seat. The scraper is located at the opening of the annular groove, and both ends of the scraper abut against the top surface of the inner positioning cylinder and the top surface of the outer positioning ring, respectively.

[0006] Furthermore, a support plate is provided on the side of the outer positioning ring away from the inner positioning cylinder, and the support plate is flush with the bottom surface of the outer positioning ring and the bottom surface of the inner positioning cylinder.

[0007] Furthermore, the support plate is provided with a detachable foot pedal, and the foot pedal is provided with anti-slip protrusions.

[0008] Furthermore, the outer positioning ring is provided with a limiting part, the limiting part is arranged around the annular through groove and the scraper is located in the area enclosed by the limiting part.

[0009] Furthermore, the limiting part is provided with a through discharge notch, and a guide surface is provided inside the discharge notch, and the height of the guide surface gradually decreases along the direction away from the annular through groove.

[0010] Furthermore, the inner positioning cylinder has a mounting hole that mates with the rotating seat, and the center of the mounting hole is located on the axis of the inner positioning cylinder.

[0011] Furthermore, the inner positioning cylinder is provided with a threaded hole concentric with the mounting hole, the connecting rod has a threaded portion that mates with the threaded hole, and the rotating seat is provided with a through hole through which the threaded portion passes.

[0012] Furthermore, the drive assembly includes a drive motor fixed on the connecting rod and a drive gear disposed at the output end of the drive motor. An internal gear is fixedly connected to the rotating seat, and the drive gear meshes with the internal gear.

[0013] Furthermore, the scraper includes a mounting rod, and the rotating seat is provided with a mounting groove that mates with one end of the mounting rod.

[0014] Compared with existing technologies, this utility model has the following advantages: By using a concentric outer positioning ring and inner positioning cylinder to form an annular groove, the outer positioning ring and inner positioning cylinder are connected by a connecting rod and a connecting piece to keep their relative positions fixed. After placing the outer positioning ring and inner positioning cylinder on the road surface, filling the annular groove with sealing material keeps the sealing material within the area enclosed by the annular groove. The drive component drives the rotating seat to rotate, causing the scraper to move continuously at the opening of the annular groove, compacting and smoothing the sealing material in the annular groove. This results in a complete and uniformly thick sealing ring formed by the sealing material. This solves the technical problem of uneven coating of sealing material or the sealing material entering the inner ring affecting the accuracy of the test results. It produces a sealing ring with good sealing performance and ensures reliable test results. It is also easy to use and helps to improve the coating efficiency of sealing material. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of an auxiliary device for applying sealing material for detecting the permeability coefficient of a road surface according to an embodiment of the present invention; Figure 2 This is a top view of an auxiliary device for applying sealing material to test the permeability coefficient of a road surface according to an embodiment of the present invention; Figure 3 This is a cross-sectional view of an auxiliary device for applying sealing material to test the permeability coefficient of a road surface, according to an embodiment of the present invention.

[0016] In the above attached figures: 1. Outer positioning ring; 11. Support plate; 12. Foot pedal; 13. Anti-slip protrusion; 14. Limiting part; 15. Discharge notch; 16. Guide surface; 2. Inner positioning cylinder; 21. Mounting hole; 3. Annular through groove; 4. Connecting rod; 41. Connecting piece; 42. Threaded part; 5. Rotating seat; 51. Scraper; 52. Internal gear; 53. Mounting rod; 6. Drive assembly; 61. Drive motor; 62. Drive gear. Detailed Implementation

[0017] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0018] like Figures 1 to 3 As shown in the figure, this utility model embodiment proposes a sealing material coating auxiliary device for testing the permeability coefficient of road surface, which is used to assist in coating the road surface with sealing material to form an annular sealing area during the testing of the permeability coefficient of asphalt road surface.

[0019] Please refer to Figure 1 and Figure 2 The auxiliary device for applying sealing material for testing road surface permeability coefficient includes an outer positioning ring 1 and an inner positioning cylinder 2 arranged concentrically. The inner diameter of the outer positioning ring 1 is 440 mm, and the outer diameter of the inner positioning cylinder 2 is 300 mm. An annular groove 3 is provided between the outer positioning ring 1 and the inner positioning cylinder 2. The inner positioning cylinder 2 is provided with a detachable connecting rod 4, and multiple connecting pieces 41 are spaced apart along the circumference of the connecting rod 4. The ends of the connecting pieces 41 away from the connecting rod 4 are fixedly connected to the outer positioning ring 1 to fix the relative position of the outer positioning ring 1 and the inner positioning cylinder 2. After the auxiliary device for applying sealing material for testing road surface permeability coefficient is placed on the road surface, sealing material is applied into the annular groove 3, thereby achieving the desired effect on the outer positioning ring 1. A ring-shaped sealing area is formed between the positioning ring 1 and the inner positioning cylinder 2. The inner positioning cylinder 2 is provided with a rotatable rotating seat 5 and a drive assembly 6 that is pulsatingly connected to the rotating seat 5. The axis of the rotating seat 5 coincides with the axis of the inner positioning cylinder 2. A scraper 51 is provided on the rotating seat 5. The scraper 51 is located at the opening of the annular through groove 3 and its two ends abut against the top surface of the inner positioning cylinder 2 and the top surface of the outer positioning ring 1, respectively. The drive assembly 6 drives the rotating seat 5 to rotate and moves the scraper 51 at the opening of the annular through groove 3. This can compact the sealing material filled in the annular through groove 3 onto the road surface and make the sealing ring formed by the sealing material uniform in height to ensure that the sealing ring formed by the sealing material has good sealing performance.

[0020] Specifically, the operation steps of applying sealing material to the road surface using the sealing material coating auxiliary device for testing road permeability coefficient provided in this embodiment are as follows: Place the sealing material coating auxiliary device for testing road permeability coefficient at a pre-selected position on the road surface and make the outer positioning ring 1 and the inner positioning cylinder 2 fit against the road surface. Then, apply sealing material into the annular groove 3, and keep the sealing material filled in the annular groove 3 within the area enclosed by the annular groove 3. When some sealing material overflows from the annular groove 3, activate the drive component 6 to drive the rotating seat 5 to rotate, and drive the scraper 51 to continuously move at the opening of the annular groove 3 to compact and flatten the sealing material in the annular groove 3. After the sealing material is flattened, remove the sealing material coating auxiliary device for testing road permeability coefficient from the road surface, so that the sealing ring formed by the sealing material is kept on the road surface. The sealing material coating auxiliary device for road permeability coefficient testing provided in this embodiment can ensure that the sealing ring formed by the sealing material on the road surface is complete in shape and uniform in thickness, ensuring that the sealing ring formed by the sealing material has good sealing performance, preventing the sealing material from entering the inner ring during coating, which is beneficial to improving the reliability of the test results, and is convenient to use and improves the coating efficiency of the sealing material.

[0021] like Figure 1 and Figure 2 As shown, a support plate 11 is provided on the side of the outer positioning ring 1 away from the inner positioning cylinder 2. The support plate 11 is flush with the bottom surface of the outer positioning ring 1 and the bottom surface of the inner positioning cylinder 2. The support plate 11 is used to fit against the road surface so that the auxiliary device for applying sealant for detecting road permeability coefficient remains stable on the road surface when placed on the road surface, and avoids the outer positioning ring 1 or the inner positioning cylinder 2 from shaking and affecting the application of sealant.

[0022] In this embodiment, the support plate 11 is provided with a detachable foot pedal 12, and the foot pedal 12 is provided with anti-slip protrusions 13. By stepping on the foot pedal 12, the inspector can fix the auxiliary device for applying sealing material for testing road permeability coefficient on the road surface and keep the support plate 11 in contact with the road surface, preventing the sealing material from leaking from the annular groove 3 due to gaps between the support plate 11 and the road surface.

[0023] like Figure 1 and Figure 3As shown, the outer positioning ring 1 is provided with a limiting part 14, which surrounds the annular through groove 3 and the scraper 51 is located within the area enclosed by the limiting part 14. The limiting part 14 is provided on the edge of the outer positioning ring 1 near the side of the outer positioning ring 1 away from the inner positioning cylinder 2, so as to block the sealing material pushed by the scraper 51 and prevent the sealing material from falling outside the outer positioning ring 1.

[0024] In detail, the limiting part 14 is provided with a through discharge notch 15, and a guide surface 16 is provided inside the discharge notch 15, the height of which gradually decreases in the direction away from the annular groove 3. The sealing material overflowing from the annular groove 3 is moved to the discharge notch 15 by the scraper 51 and discharged along the guide surface 16 into the area enclosed by the limiting part 14, so as to facilitate the collection of excess sealing material.

[0025] Please refer to Figure 3 The inner positioning cylinder 2 has a mounting hole 21 that mates with the rotating seat 5, and the center of the mounting hole 21 is located on the axis of the inner positioning cylinder 2. The rotating seat 5 is installed on the inner positioning cylinder 2 by mates with the mounting hole 21, so that the rotating seat 5 can rotate smoothly on the inner positioning cylinder 2, ensuring the stable operation of the auxiliary device for applying sealing material for road permeability coefficient detection.

[0026] Specifically, the inner positioning cylinder 2 has a threaded hole concentric with the mounting hole 21, the connecting rod 4 has a threaded portion 42 that mates with the threaded hole, and the rotating seat 5 has a through hole through which the threaded portion 42 passes. By passing the threaded portion 42 through the through hole and engaging with the threaded hole, the connecting rod 4 can be fixed to the inner positioning cylinder 2, and the connecting rod 4 can limit the rotation seat 5, keeping it within the mounting hole 21 and preventing the rotation seat 5 from detaching from the inner positioning cylinder 2.

[0027] Please combine Figure 1 and Figure 3 The drive assembly 6 includes a drive motor 61 fixed to the connecting rod 4 and a drive gear 62 disposed at the output end of the drive motor 61. An internal gear 52 is fixedly connected to the rotating seat 5, and the drive gear 62 meshes with the internal gear 52. The drive motor 61 drives the drive gear 62 to rotate, and the power output by the drive motor 61 is transmitted to the rotating seat 5 through the engagement of the drive gear 62 and the internal gear 52. This allows the rotating seat 5 to rotate smoothly under the drive of the drive motor 61, thereby enabling the scraper 51 to continuously scrape the sealing material in the annular groove 3, facilitating the use of the auxiliary device for applying sealing material for road surface permeability coefficient testing.

[0028] like Figure 3 As shown, the scraper 51 includes a mounting rod 53, and the rotating base 5 has a mounting groove that mates with one end of the mounting rod 53. The scraper 51 is fixed to the rotating base 5 by the engagement of the mounting rod 53 and the mounting groove, ensuring a secure connection between the scraper 51 and the rotating base 5, and facilitating the removal of the scraper 51 from the rotating base 5 for cleaning or replacement.

[0029] Please refer to Figure 1 To facilitate the separation of the sealing material coating auxiliary device for road permeability coefficient testing from the sealing material in the annular groove 3, after the sealing material coating auxiliary device for road permeability coefficient testing is placed on the road surface, a first washer and a second washer are inserted into the annular groove 3. The first washer and the second washer are both made of paper, with the first washer fitting against the inner wall of the outer positioning ring 1 and the second washer fitting against the outer wall of the inner positioning cylinder 2. When applying the sealing material, the sealing material is injected between the first washer and the second washer to avoid direct contact between the sealing material and the outer positioning ring 1 and the inner positioning cylinder 2, thereby preventing the sealing ring formed by the sealing material from deforming when the sealing material coating auxiliary device for road permeability coefficient testing is removed from the road surface. Furthermore, the first washer and the second washer can be removed after the sealing material has cured.

[0030] 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 preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An auxiliary device for applying sealing material for testing road surface permeability coefficient, characterized in that: The device includes a concentrically arranged outer positioning ring and an inner positioning cylinder. An annular groove exists between the outer positioning ring and the inner positioning cylinder. The inner positioning cylinder has a detachable connecting rod with multiple connecting pieces spaced circumferentially along the connecting rod. The ends of the connecting pieces away from the connecting rod are fixedly connected to the outer positioning ring. The inner positioning cylinder contains a rotatable rotating seat and a drive assembly connected to the rotating seat. The axis of the rotating seat coincides with the axis of the inner positioning cylinder. A scraper is provided on the rotating seat, located at the opening of the annular groove, with both ends of the scraper abutting against the top surface of the inner positioning cylinder and the top surface of the outer positioning ring, respectively.

2. The auxiliary device for applying sealing material for testing road surface permeability coefficient as described in claim 1, characterized in that: A support plate is provided on the side of the outer positioning ring away from the inner positioning cylinder, and the support plate is flush with the bottom surface of the outer positioning ring and the bottom surface of the inner positioning cylinder.

3. The auxiliary device for applying sealing material for testing road permeability coefficient as described in claim 2, characterized in that: The support plate is equipped with a detachable foot pedal, which has anti-slip protrusions.

4. The auxiliary device for applying sealing material for testing road surface permeability coefficient as described in claim 1, characterized in that: The outer positioning ring is provided with a limiting part, which surrounds the annular through groove and the scraper is located in the area enclosed by the limiting part.

5. The auxiliary device for applying sealing material for testing road surface permeability coefficient as described in claim 4, characterized in that: The limiting part is provided with a through discharge notch, and a guide surface is provided inside the discharge notch, and the height of the guide surface gradually decreases along the direction away from the annular through groove.

6. The auxiliary device for applying sealing material for testing road permeability coefficient as described in claim 1, characterized in that: The inner positioning cylinder has a mounting hole that mates with the rotating seat, and the center of the mounting hole is located on the axis of the inner positioning cylinder.

7. The auxiliary device for applying sealing material for testing road surface permeability coefficient as described in claim 6, characterized in that: The inner positioning cylinder is provided with a threaded hole concentric with the mounting hole, the connecting rod has a threaded portion that mates with the threaded hole, and the rotating seat is provided with a through hole through which the threaded portion passes.

8. The auxiliary device for applying sealing material for testing road permeability coefficient as described in claim 1, characterized in that: The drive assembly includes a drive motor fixed on the connecting rod and a drive gear disposed at the output end of the drive motor. An internal gear is fixedly connected to the rotating seat, and the drive gear meshes with the internal gear.

9. The auxiliary device for applying sealing material for testing road permeability coefficient as described in claim 1, characterized in that: The scraper includes a mounting rod, and the rotating base is provided with a mounting groove that mates with one end of the mounting rod.

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