Pavement water seepage instrument
By introducing a sealing material positioning mechanism with inner and outer ring structures into the road surface permeability meter, the problem of cumbersome sealing material application steps in the existing technology is solved, achieving efficient and standardized sealing operation and ensuring the reliability of the test.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 广东粤湾工程检测有限公司
- Filing Date
- 2025-05-06
- Publication Date
- 2026-04-21
AI Technical Summary
Existing road surface permeability meters involve cumbersome and inefficient steps when applying sealant, and the sealant can easily extend beyond the marked line, leading to test failure.
A sealing material positioning mechanism including an inner ring structure and an outer ring structure was designed. The sealing material can be quickly applied through the annular groove, avoiding the steps of drawing circles with chalk and scraping off excess material. The sealing effect is increased by the annular protrusion.
It improved the efficiency of sealing material application, ensured the standardization and integrity of the seal, prevented leakage of sealing material, and increased the success rate of testing.
Smart Images

Figure CN224152283U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of road testing equipment technology, and in particular to a road surface permeability meter. Background Technology
[0002] A pavement permeability meter is an instrument used to determine the permeability of asphalt pavement mixtures. It is primarily used to evaluate the permeability of road surfaces, assisting road construction and maintenance departments in conducting on-site measurements and experimental research. A pavement permeability meter typically consists of a main body and a marking ring.
[0003] During testing, the testing points are first selected on the road surface. Dust and debris are then removed using a broom and fine wire brush. Next, circles are drawn on the cleaned road surface with chalk, aligning with the size of the testing instrument's base. A ring of sealant is then applied along the base, ensuring it fills all gaps and adheres firmly to the surface. However, it's unavoidable that some sealant will extend beyond the chalk lines. Therefore, after applying the bottom layer, the excess sealant must be carefully scraped off along the chalk lines, resulting in low efficiency. While some road permeability meters now include a ring wall to press against the inner ring after the chalk circle is drawn, preventing the sealant from extending beyond the inner ring, this addition still presents the problem of numerous tedious steps.
[0004] After the sealant is applied, the permeameter body can be placed on the sealant to begin testing. However, in some cases, if the tester does not press the permeameter body firmly onto the sealant, water may seep out between the sealant and the permeameter body during testing, causing the test to fail and requiring a new test site to be selected.
[0005] It is evident that existing technologies still need improvement and enhancement. Utility Model Content
[0006] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a road surface permeability meter, which aims to solve the technical problems of cumbersome steps and low efficiency in the application of sealant in the prior art.
[0007] To achieve the above objectives, the present invention adopts the following technical solution:
[0008] A road surface permeability meter includes a meter body and a sealing material positioning mechanism; the sealing material positioning mechanism includes an outer ring structure and an inner ring structure disposed in the middle of the outer ring structure; the inner ring structure and the outer ring structure are concentric; the tops of the inner ring structure and the outer ring structure are fixedly connected by at least one connecting plate; an annular groove is provided between the inner ring structure and the outer ring structure.
[0009] The road surface permeability meter, wherein the main body of the permeability meter includes, from bottom to top, a base, a drain pipe, an upper support plate, and a measuring cylinder; the bottom surface of the base is provided with a cavity; the cavity, the drain pipe, and the measuring cylinder are connected in sequence.
[0010] In the aforementioned road surface permeability meter, the concave cavity is cylindrical; the peripheral wall of the concave cavity is an annular wall; and the bottom surface of the annular wall is provided with multiple annular protrusions in a circumferential direction.
[0011] The road surface permeability meter is provided with an air release valve on the base; the air release valve is connected to the cavity.
[0012] The aforementioned road surface permeability meter includes a vent hole on the base; the vent hole vertically penetrates the base; the vent valve includes a vertical pipe and a water-stop cover; the vertical pipe is disposed on the vent hole; the water-stop cover is threadedly connected to the top of the vertical pipe; and a rubber gasket is disposed on the bottom surface of the water-stop cover.
[0013] The aforementioned road surface permeability meter includes a drain valve installed on the drainage pipe.
[0014] The aforementioned road surface permeability meter further includes multiple sets of counterweight components; each counterweight component includes two mirror-arranged arc-shaped counterweights; the arc-shaped counterweights are placed on the base to increase the weight of the main body of the permeability meter.
[0015] The aforementioned road surface permeability meter includes multiple support columns arranged between the base and the upper support plate, with the support columns equidistantly spaced around the drainage pipe.
[0016] Beneficial effects: This utility model provides a road surface permeability meter. The road surface permeability meter is equipped with a sealing material positioning mechanism with an inner ring structure and an outer ring structure. When applying the sealing material, it can be directly and quickly applied to the annular groove between the inner ring structure and the outer ring structure. There is no need to use chalk and rubber rings to draw marking lines, and the problem of sealing material exceeding the marking lines will not occur. The efficiency of applying sealing material is higher, and it can ensure that the sealing material is applied in accordance with the requirements each time, thus ensuring the standardization of operation. Attached Figure Description
[0017] Figure 1 A schematic diagram of the sealing material positioning mechanism.
[0018] Figure 2 Schematic diagram of the sealing material positioning mechanism Figure 1 .
[0019] Figure 3 Schematic diagram of the sealing material positioning mechanism Figure 2 .
[0020] Figure 4This is a schematic diagram of the vent valve.
[0021] Figure 5 Schematic diagram of the sealing material positioning mechanism Figure 3 .
[0022] Explanation of main component symbols: 1-body of the seepage meter, 2-sealing material positioning mechanism, 21-outer ring structure, 22-inner ring structure, 23-connecting plate, 24-annular groove, 11-base, 12-drain pipe, 13-upper support plate, 14-measuring cylinder, 111-annular protrusion, 15-vent valve, 112-vent hole, 113-cavity, 151-vertical pipe, 152-water stop cover, 153-pin, 154-rubber pad, 16-drain valve, 17-arc-shaped counterweight, 18-support column. Detailed Implementation
[0023] This utility model provides a road surface permeability meter. To make the purpose, technical solution, and effects of this utility model clearer and more explicit, the following describes this utility model in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.
[0024] In the description of this utility model, it should be understood that the terms "upper," "lower," "left," "right," etc., indicating orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or a specific orientational structure and operation. Therefore, they should not be construed as limitations on this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0025] Please see Figure 1This utility model provides a road surface permeability meter, comprising a meter body 1 and a sealing material positioning mechanism 2. The sealing material positioning mechanism 2 includes an outer ring structure 21 and an inner ring structure 22 disposed in the middle of the outer ring structure 21. The inner ring structure 22 and the outer ring structure 21 are concentrically arranged. The tops of the inner ring structure 22 and the outer ring structure 21 are fixedly connected by at least one connecting plate 23. An annular groove 24 is provided between the inner ring structure 22 and the outer ring structure 21. In use, first select the detection point, then align the center of the sealing material positioning mechanism 2 with the detection point and place it on the detection point. The annular groove 24 connects the upper and lower spaces. After the sealing material positioning mechanism 2 is placed, sealant can be applied to the ground in the annular groove 24. After the sealant is applied, the sealing material positioning mechanism 2 can be picked up directly, at which point an annular sealant is formed on the ground. Then, the permeability meter body 1 is placed on the sealant and pressed firmly to proceed to the next step. This invention, through the sealing material positioning mechanism 2, can quickly complete the application of sealing material without the need for chalk markings or concerns about the sealing material exceeding the marked inner circle, thus improving operational efficiency.
[0026] Preferably, the inner ring structure 22 and the outer ring structure 21 are fixedly connected by two opposing connecting plates 23. The number of connecting plates 23 should not be too large, otherwise it will affect the ease of filling the annular groove 24 with sealing material. Furthermore, the more connecting plates 23 there are, the stronger the connection between the inner ring structure 22 and the outer ring structure 21 will be.
[0027] Please see Figure 2 and Figure 3 In one embodiment, the main body 1 of the seepage meter includes, from bottom to top, a base 11, a drain pipe 12, an upper support plate 13, and a measuring cylinder 14; the bottom surface of the base 11 is provided with a cavity 113; the cavity 113, the drain pipe 12, and the measuring cylinder 14 are connected in sequence. In use, the base 11 is pressed firmly onto the sealing material, and the cavity 113 is aligned with the ground surrounded by the sealing material. During testing, water from the measuring cylinder 14 enters the cavity 113 through the drain pipe 12 and eventually falls onto the ground surrounded by the sealing material, thereby detecting the seepage of water from the ground.
[0028] Please see Figure 3 In one embodiment, the cavity 113 is cylindrical; the peripheral wall of the cavity 113 is an annular wall; and a plurality of annular protrusions 111 are circumferentially arranged on the bottom surface of the annular wall. Specifically, the height of the annular protrusions 111 is 0.5–1 cm. The annular protrusions 111 are used to insert into the sealing material, increasing the contact area between the bottom surface of the annular wall and the sealing material, and ensuring that the sealing material is in close contact with the annular protrusions 111, thus achieving sufficient leak-proof effect.
[0029] Preferably, there are three or more annular protrusions 111 on the bottom surface of the annular wall. The more annular protrusions 111 there are, the better the leak-proof effect can be achieved.
[0030] Please see Figure 2 In one embodiment, a vent valve 15 is provided on the base 11; the vent valve 15 is connected to the cavity 113. A drain valve 16 is provided on the drain pipe 12. The drain valve 16 is used to control the water flow from the measuring cylinder 14 to the ground below. After placing the main body 1 of the percolation meter on the sealing material and pressing it tightly, first open the drain valve 16 and the vent valve 15. When water comes out of the vent valve 15, it indicates that the air in the cavity 113 has been expelled. Then close the vent valve 15 and the drain valve 16. Then add water to the measuring cylinder 14 to a specific scale, and then reopen the drain valve 16 to start the test.
[0031] Please see Figure 3 and Figure 4 In one embodiment, the base 11 is provided with a vent hole 112; the vent hole 112 vertically penetrates the base 11; the vent valve 15 includes a vertical pipe 151 and a water-stop cover 152; the vertical pipe 151 is disposed on the vent hole 112; the water-stop cover 152 is threadedly connected to the top of the vertical pipe 151; a rubber gasket 154 is provided on the bottom surface of the water-stop cover 152. When venting is required, the water-stop cover 152 is loosened, and the gas can be discharged from the gap between the water-stop cover 152 and the vertical pipe 151. After tightening the water-stop cover 152, the rubber gasket 154 will press against the top of the vertical pipe 151, thereby achieving a leak-proof effect. Specifically, the water-stop cover 152 is provided with an internal thread, and the top of the vertical pipe 151 is correspondingly provided with an external thread.
[0032] Preferably, the bottom surface of the water-stop cover 152 is connected to a pin 153, which is inserted into the vertical pipe 151. The pin 153 is used to increase the weight of the water-stop cover 152 and to prevent it from falling off. When the water-stop cover 152 is fully unscrewed, it is easier to completely expel the air. At this time, water flows out from the vertical pipe 151 and will lift the water-stop cover 152. The pin 153 is still inside the vertical pipe 151, which plays a limiting role and prevents the water-stop cover 152 from falling off the vertical pipe 151.
[0033] Please see Figure 5 In one embodiment, the road surface permeability meter further includes multiple sets of counterweight components; each counterweight component includes two mirror-arranged arc-shaped counterweights 17; the arc-shaped counterweights 17 are placed on the base 11 to increase the weight of the permeability meter body 1. After the permeability meter body 1 is placed on the sealing material, the two arc-shaped counterweights 17 are placed on the base 11 respectively and combined into a ring shape to distribute the gravity evenly, pressing the permeability meter body 1 tightly onto the sealing material to prevent leakage.
[0034] Please see Figure 5 In one embodiment, multiple support columns 18 are provided between the base 11 and the upper support plate 13, and the multiple support columns 18 are equidistantly arranged circumferentially with the water pipe 12 as the center. The support columns 18 are used to improve the structural strength of the infiltration meter body 1.
[0035] In summary, this invention, by setting the sealing material positioning mechanism 2, allows for faster and more efficient application of the sealing material, eliminating the need for tedious operations such as marking with chalk and rubber rings, and scraping off excess sealing material. Furthermore, this invention further optimizes the structure of the base 11 by adding annular protrusions 111 to increase the contact area between the sealing material and the bottom surface of the base 11, thereby further improving the leak-proof effect.
[0036] It is understood that those skilled in the art can make equivalent substitutions or changes based on the technical solution and inventive concept of this utility model, and all such substitutions or changes should fall within the protection scope of the appended claims of this utility model.
Claims
1. A road surface water permeability meter, characterized by, The device includes a permeation meter body and a sealing material positioning mechanism; the sealing material positioning mechanism includes an outer ring structure and an inner ring structure disposed in the middle of the outer ring structure; the inner ring structure and the outer ring structure are arranged concentrically; the tops of the inner ring structure and the outer ring structure are fixedly connected by at least one connecting plate; an annular groove is provided between the inner ring structure and the outer ring structure.
2. The pavement water permeameter of claim 1, wherein, The main body of the infiltration meter includes, from bottom to top, a base, a drain pipe, an upper support plate, and a measuring cylinder; the bottom surface of the base is provided with a cavity; the cavity, the drain pipe, and the measuring cylinder are connected in sequence.
3. The pavement water permeability apparatus according to claim 2, wherein The cavity is cylindrical; the periphery of the cavity is an annular wall; and the bottom surface of the annular wall is provided with multiple annular protrusions in the circumferential direction.
4. The pavement water permeability apparatus according to claim 2, wherein The base is equipped with a vent valve; the vent valve is connected to the cavity.
5. The pavement water permeameter of claim 4, wherein, The base is provided with a vent hole; the vent hole vertically penetrates the base; the vent valve includes a vertical pipe and a water stop cover; the vertical pipe is provided on the vent hole; the water stop cover is threaded to the top of the vertical pipe; the bottom surface of the water stop cover is provided with a rubber gasket.
6. The pavement water permeability apparatus according to claim 2, wherein A drain valve is installed on the sewer pipe.
7. The pavement water permeability apparatus according to claim 2, wherein It also includes multiple sets of counterweight components; the counterweight components include two mirror-arranged arc-shaped counterweights; the arc-shaped counterweights are used to place on the base to increase the weight of the main body of the infiltration device.
8. The pavement water permeability apparatus according to claim 2, wherein Multiple support columns are provided between the base and the upper support plate, and the multiple support columns are equidistantly arranged around the water pipe as the center.