A road surface water seepage testing device

Abstract

This utility model discloses a road surface water seepage testing device, including a housing with a test chamber extending through the bottom. An electric telescopic rod is located at the top of the housing, with its free end extending into the test chamber. A lifting plate is located at the free end of the electric telescopic rod, and a testing component is located at the bottom of the lifting plate. The testing component includes a measuring cylinder at the bottom of the lifting plate and a sealing element at the bottom of the measuring cylinder. Preferably, the axis of the measuring cylinder coincides with the axis of the test chamber. A water inlet pipe is located at the top of the measuring cylinder, with its upper end extending upward through the housing and outward for injecting test water. The sealing element is a cylindrical structure, with its top sealed to the bottom drain outlet of the measuring cylinder and internally connected. An annular sealing ring is fixedly provided at the bottom opening edge of the sealing element. This utility model relates to the field of water seepage testing technology, specifically providing a road surface water seepage testing device.

Description

Technical Field

[0001] This utility model relates to the field of water seepage testing technology, specifically a road surface water seepage testing device. Background Technology

[0002] Road surface permeability testing involves applying a fixed amount of water to the road surface and measuring the amount of water that seeps into the road structure per unit time to evaluate the road's permeability. This indicator is of great significance for projects such as sponge cities, permeable asphalt concrete, and ecological roads. The basic components of a permeability testing device include a water-filled cylinder, a base, a sealing ring, an overflow outlet, and a measuring cup. During the test, the base is fitted to the road surface and sealed. A fixed amount of clean water is injected into the water-filled cylinder, and gravity causes the water to permeate the road surface. The rate at which the water level in the container drops is observed, and the time required to empty the container is recorded. The permeability coefficient is then calculated.

[0003] Currently, pavement permeability coefficient is an important indicator for evaluating pavement drainage performance. Traditional pavement permeability meters typically use manual pressing to ensure the sealing ring adheres to the pavement, which results in problems such as loose adhesion and easy leakage at the edges, leading to inaccurate test data. Furthermore, the entire testing process relies entirely on manual operation, which is inefficient and labor-intensive. Utility Model Content

[0004] The technical problem this invention aims to solve is how to effectively prevent edge leakage at the contact point between the test seal and the ground to ensure test accuracy; and how to achieve labor-saving and automated testing processes to improve testing efficiency.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: The present invention proposes a road surface water seepage testing device, including a device housing, a test cavity extending through the bottom inside the device housing, an electric telescopic rod at the top of the device housing with its free end extending through and into the test cavity, a lifting plate at the free end of the electric telescopic rod, and a test component at the bottom of the lifting plate.

[0006] The test assembly includes a measuring cylinder located at the bottom of the lifting plate and a sealing element located at the bottom of the measuring cylinder. The axis of the measuring cylinder is preferably coincident with the axis of the test chamber. A water inlet pipe is provided at the top of the measuring cylinder. The upper end of the water inlet pipe passes through the equipment housing and extends to the outside of it for injecting test water. The sealing element is a cylindrical structure. Its top is sealed to the bottom drain port of the measuring cylinder and is internally connected. An annular sealing ring is fixedly provided at the bottom opening edge of the sealing element.

[0007] Preferred technical solution 1: The equipment housing is further provided with a material storage chamber. A liquid pump is provided on the top wall of the material storage chamber. An annular recess is provided at the bottom of the equipment housing near the test chamber. Multiple sets of adhesive nozzles are evenly distributed in the annular recess with its central axis as the center. The liquid inlet end of the liquid pump is connected to the adhesive inside the material storage chamber through a hose and the adhesive is transported to the adhesive nozzles through another set of hoses.

[0008] Preferred technical solution 2: A rubber sealing ring is also fixedly embedded at the bottom of the equipment housing near the annular recess.

[0009] Preferred technical solution 3: The top of the equipment housing is provided with a liquid injection pipe, and the bottom of the liquid injection pipe is connected to the inside of the storage chamber.

[0010] Preferred technical solution four: An observation window is provided on the front side of the equipment housing.

[0011] Preferred technical solution five: The top of the equipment housing is also provided with a controller, the electric telescopic rod and the liquid pump are both electrically connected to the controller, and the top of the equipment housing is also provided with a lifting handle.

[0012] Preferred technical solution six: The sealant liquid is made of silicone sealant, which cures upon contact with moisture in the air.

[0013] The road surface seepage testing device proposed in this utility model has the following beneficial effects achieved by adopting the above-described structure:

[0014] (1) By setting up a sealant storage and spraying system, the sealant can be automatically filled into the annular area where the sealant contacts the ground during the test, forming an additional and reliable sealing ring, thereby completely eliminating the possibility of test water leakage from the edge where the device is in contact with the ground, and significantly improving the accuracy and reliability of the water permeability coefficient test results.

[0015] (2) The test components are raised and lowered by an electric telescopic rod, which replaces the traditional manual pressing and fixing method. This not only saves effort in operation, but also provides uniform and stable downward pressure, greatly improving the automation level and efficiency of the testing process.

[0016] (3) By setting a rubber sealing ring at the bottom of the equipment housing, the initial sealing between the equipment and the ground is enhanced, which helps to maintain the stability of the environment inside the test chamber and accommodate possible glue spillage; the integrated lifting handle and observation window make the equipment easy to move and the water level reading during the test is clear and intuitive, further improving the practicality and ease of operation of the equipment. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a schematic diagram of the overall structure of a road surface permeability testing device proposed in this utility model. Figure 1 ;

[0019] Figure 2 This is a schematic diagram of the overall structure of a road surface permeability testing device proposed in this utility model. Figure 2 ;

[0020] Figure 3 This is a schematic diagram of the internal structure of a road surface seepage testing device proposed in this utility model;

[0021] Figure 4 This is an internal sectional view of the housing of a road surface seepage testing device proposed in this utility model;

[0022] Figure 5 for Figure 4 A magnified view of part A;

[0023] Figure 6 This is a schematic diagram of the test components of a road surface water seepage testing device proposed in this utility model.

[0024] The components include: 1. Equipment housing; 2. Test chamber; 3. Electric telescopic rod; 4. Lifting plate; 5. Test assembly; 6. Measuring cylinder; 7. Seal; 8. Water inlet pipe; 9. Sealing ring; 10. Material storage chamber; 11. Liquid pump; 12. Annular recess; 13. Adhesive nozzle; 14. Adhesive sealing ring; 15. Injection pipe; 16. Observation window; 17. Controller; and 18. Lifting handle. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0026] It should be noted that the terms “front,” “back,” “left,” “right,” “up,” and “down” used in the following description refer to the directions shown in the attached diagram, while the terms “inside” and “outside” refer to the directions toward or away from the geometric center of a specific component, respectively.

[0027] Example 1

[0028] like Figures 1-6As shown, the technical solution adopted by this utility model is as follows: a road surface water seepage test device includes a device housing 1, a test cavity 2 that penetrates the bottom inside the device housing 1, an electric telescopic rod 3 that is provided at the top of the device housing 1 and its free end penetrates and extends into the test cavity 2, a lifting plate 4 that is provided at the free end of the electric telescopic rod 3 and a test component 5 that is provided at the bottom of the lifting plate 4.

[0029] like Figures 3-6 As shown, the test assembly 5 includes a measuring cylinder 6 located at the bottom of the lifting plate 4 and a sealing element 7 located at the bottom of the measuring cylinder 6. The axis of the measuring cylinder 6 preferably coincides with the axis of the test chamber 2. A water inlet pipe 8 is located at the top of the measuring cylinder 6, with its upper end extending upwards through the equipment housing 1 and outwards for injecting test water. The sealing element 7 is a cylindrical structure, with its top sealed to the bottom drain outlet of the measuring cylinder 6 and its interior interconnected, allowing water from the measuring cylinder 6 to flow into the sealing element 7. A ring-shaped sealing ring 9 is fixedly provided at the bottom opening edge of the sealing element 7 to form a contact seal with the road surface to be tested. In operation, the equipment housing 1 is placed on the road surface to be tested, and the electric telescopic rod 3 is activated via the controller 17, driving the lifting plate 4 and the entire test assembly 5 downwards until the sealing ring 9 at the bottom of the sealing element 7 is pressed firmly onto the ground, forming a sealed test area. Subsequently, a certain amount of water is injected into the measuring cylinder 6 through the water inlet pipe 8, and the water seepage test can begin. The water seepage coefficient is calculated by reading the scale changes of the measuring cylinder 6 through the observation window 16. The process uses electric drive instead of manual pressing, making it easier and more stable to operate.

[0030] like Figure 4 and Figure 5 As shown, to further enhance the sealing performance of the seal 7, a storage chamber 10 is also provided inside the equipment housing 1 for storing sealant. The sealant is a silicone sealant with a wide viscosity range, suitable for pumping, and cures upon contact with moisture in the air. A liquid pump 11 is provided on the top wall of the storage chamber 10, and an annular recess 12 is provided at the bottom of the equipment housing 1 near the test chamber 2. Multiple sets of sealant nozzles 13 are evenly distributed within the annular recess 12 with its central axis as the center. The inlet end of the liquid pump 11 is connected to the sealant inside the storage chamber 10 via a hose. The adhesive is then delivered to the adhesive nozzle 13 via another set of hoses. When the electric telescopic rod 3 drives the sealant 7 to press down and contact the ground, the controller 17 can start the liquid pump 11. The liquid pump 11 pumps the sealant from the storage chamber 10 and sprays it through the adhesive nozzle 13 into the annular space formed between the annular recess 12 and the outer wall of the sealant 7. The sealant quickly fills the space and cures or becomes semi-cured, thereby forming an additional, reliable sealing ring around the sealant 7, completely eliminating the possibility of edge leakage.

[0031] Example 2

[0032] Based on Example 1, such as Figure 4and Figure 5 As shown, to increase the sealing between the equipment housing 1 and the ground, a rubber sealing ring 14 is fixedly embedded at the bottom of the equipment housing 1 near the annular recess 12. When the equipment housing 1 is placed on the ground, the rubber sealing ring 14 first contacts the ground, which can initially improve the sealing between the equipment housing 1 and the ground, prevent external airflow and other factors from interfering with the air pressure in the test chamber 2, and at the same time help to contain any small amount of sealant that may overflow. The top of the equipment housing 1 is provided with a liquid injection pipe 15, and the lower part of the liquid injection pipe 15 is connected to the inside of the storage chamber 10.

[0033] like Figure 1 As shown, in order to facilitate the penetration of the water level scale of the measuring cylinder 6, an observation window 16 is provided on the front side of the equipment housing 1, which is positioned directly opposite the measuring cylinder 6, so that the tester can clearly observe the changes in the water level scale inside the measuring cylinder 6.

[0034] The top of the equipment housing 1 is also equipped with a controller 17. The electric telescopic rod 3 and the liquid pump 11 are both electrically connected to the controller 17. The controller 17 is programmable and realizes automatic sequential control of the raising and lowering of the electric telescopic rod 3 and the starting and stopping of the liquid pump 11. For example, the sealing element 7 is pressed down first, and then the liquid pump 11 is started to inject glue. After the glue injection is completed, it stops automatically, making the operation more convenient and intelligent. The top of the equipment housing 1 is also equipped with a lifting handle 18, which facilitates the handling of the equipment for easy operation and carrying.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, material, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, material, or apparatus.

[0036] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A road surface permeability testing device, comprising a housing (1), characterized in that: The device housing (1) has a test cavity (2) that extends through the bottom inside. The top of the device housing (1) has an electric telescopic rod (3) with its free end extending through and into the test cavity (2). The free end of the electric telescopic rod (3) has a lifting plate (4) and a test assembly (5) is provided at the bottom of the lifting plate (4). The test assembly (5) includes a measuring cylinder (6) located at the bottom of the lifting plate (4) and a sealing element (7) located at the bottom of the measuring cylinder (6). The axis of the measuring cylinder (6) is preferably coincident with the axis of the test chamber (2). The top of the measuring cylinder (6) is provided with a water inlet pipe (8). The upper end of the water inlet pipe (8) passes through the equipment housing (1) and extends to its outside for injecting test water. The sealing element (7) is a cylindrical structure. Its top is sealed and connected to the bottom drain port of the measuring cylinder (6) and the interior is connected, so that the water in the measuring cylinder (6) can flow into the sealing element (7). The bottom opening edge of the sealing element (7) is fixedly provided with an annular sealing ring (9).

2. The road surface permeability testing device according to claim 1, characterized in that: The equipment housing (1) is also provided with a storage chamber (10) for storing sealant. The top wall of the storage chamber (10) is provided with a liquid pump (11). The bottom of the equipment housing (1) is provided with an annular recess (12) near the test chamber (2). Multiple sets of sealant nozzles (13) are evenly distributed in the annular recess (12) with its central axis as the center. The liquid inlet of the liquid pump (11) is connected to the sealant inside the storage chamber (10) through a hose and the sealant is transported to the sealant nozzles (13) through another set of hoses.

3. The road surface permeability testing device according to claim 2, characterized in that: A rubber sealing ring (14) is also fixedly embedded at the bottom of the equipment housing (1) near the annular recess (12).

4. The road surface permeability testing device according to claim 3, characterized in that: The top of the equipment housing (1) is provided with a liquid injection pipe (15), and the bottom of the liquid injection pipe (15) is connected to the inside of the storage chamber (10).

5. A road surface permeability testing device according to claim 4, characterized in that: An observation window (16) is provided on the front side of the device housing (1), which is positioned directly opposite the measuring cylinder (6).

6. A road surface permeability testing device according to claim 5, characterized in that: The top of the equipment housing (1) is also provided with a controller (17), the electric telescopic rod (3) and the liquid pump (11) are both electrically connected to the controller (17), and the top of the equipment housing (1) is also provided with a lifting handle (18).

7. A road surface permeability testing device according to claim 6, characterized in that: The sealant used is a silicone sealant.

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