Pavement water seepage metering instrument

Abstract

The utility model discloses a road surface water seepage metering instrument which comprises a metering cylinder, scales are arranged on the front side of the metering cylinder, an external thread cylinder is rotatably installed on the outer side of the metering cylinder, a worm gear is fixedly installed on the outer side of the external thread cylinder, an installation plate is fixedly installed on one side of the metering cylinder, and installation frames are fixedly installed on the front side and the rear side of the installation plate. A worm is rotationally mounted between the two mounting frames, the worm is meshed with the worm gear, and the outer side of the outer threaded cylinder is in threaded connection with a second push plate. The pedal is treaded down and the worm is rotated, the worm drives the worm gear to rotate so as to drive the external thread cylinder to rotate, the external thread cylinder drives the second push plate to descend under the guidance of the guide plate, and the second push plate drives the base to abut against the ground through the connecting plate in the descending process. Therefore, the sealing performance between the base and the ground is greatly enhanced, and water is prevented from flowing away from a gap between the base and the ground to affect the experiment result.

Description

Technical Field

[0001] This utility model relates to a measuring instrument, specifically a road surface seepage measuring instrument. Background Technology

[0002] The pavement permeability coefficient is a key technical indicator for evaluating the drainage performance of asphalt pavements and asphalt mixtures. The magnitude of the pavement permeability coefficient directly affects the traffic safety of asphalt pavements in rainy weather. It is generally measured using a pavement permeability coefficient measuring instrument. The pavement permeability coefficient is typically expressed as the volume of water that seeps into the pavement per unit time, usually measured in milliliters per minute (ml / min). With the development of transportation, pavement drainage performance has received increasing attention, necessitating the use of measuring instruments to assess the amount of water seepage.

[0003] The prior art disclosed in CN221038617U is a road seepage measuring instrument. The main body, fixed frame, positioning clamp, measuring cylinder and top cover work together to facilitate the replacement of the measuring cylinder according to the needs of use, thereby improving the measurement efficiency. Through the joint action of connecting pipe, control valve body, rotating shaft and adjusting handle, the speed of water flow can be adjusted according to the needs during the measurement of road seepage, so as to read accurate data.

[0004] However, the seepage metering instruments proposed in the prior art only achieve the sealing between the soil and the base through a sealing gasket, but do not apply pressure to the base, which may still result in leakage between the base and the soil. Therefore, this application proposes a road seepage metering instrument. Utility Model Content

[0005] The purpose of this utility model is to provide a road seepage metering instrument to solve the problem that the seepage metering instruments proposed in the prior art mentioned above only achieve the sealing between the soil and the base through a sealing gasket, but do not apply pressure to the base, which may still result in leakage between the base and the soil.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A road seepage metering instrument includes a measuring cylinder with a scale on its front side. An external threaded cylinder is rotatably mounted on the outer side of the measuring cylinder, and a worm gear is fixedly mounted on the outer side of the external threaded cylinder. A mounting plate is fixedly mounted on one side of the measuring cylinder, and mounting brackets are fixedly mounted on both the front and rear sides of the mounting plate. A worm gear is rotatably mounted between the two mounting brackets, and the worm gear meshes with the worm gear. A second push plate is threadedly connected to the outer side of the external threaded cylinder, and a guide plate is fixedly mounted on the other side of the measuring cylinder. One end of the guide plate passes through the second push plate and is slidably connected to it. Connecting plates are symmetrically fixedly mounted on the bottom of the second push plate, and a base is fixedly mounted on the bottom of both connecting plates. The base is sleeved on the outer side of the measuring cylinder and slidably sealed with the measuring cylinder. A first push plate is slidably sealed inside the measuring cylinder, and a push rod is fixedly mounted on the top of the first push plate. A water outlet pipe is fixedly mounted on the bottom of the measuring cylinder, and a solenoid valve is fixedly mounted on the water outlet pipe. Pedals are fixedly mounted on both sides of the top of the measuring cylinder.

[0008] As a further improvement of this utility model, a handle is fixedly installed at one end of both the push rod and the worm gear.

[0009] As a further improvement of this utility model, a sealing gasket is embedded and fixedly installed at the bottom of the base.

[0010] As a further embodiment of this utility model: a switch is fixedly installed on one of the connecting plates, a storage battery is fixedly installed on the connecting plate on which the switch is installed, the solenoid valve is electrically connected to the switch through a wire, and the switch is electrically connected to the storage battery through a wire.

[0011] As a further improvement of this utility model: the base is provided with a wire-passing hole for the wire to pass through, and a sealing ring is fixedly installed inside the wire-passing hole.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model involves stepping on a pedal and rotating a worm gear, which in turn drives a worm wheel to rotate, thereby rotating an external threaded cylinder. The external threaded cylinder then drives a second push plate to descend under the guidance of a guide plate. During the descent, the second push plate, through a connecting plate, causes the base to press firmly against the ground, thus greatly enhancing the sealing between the base and the ground and preventing water from flowing out through the gaps between the base and the ground, which would affect the experimental results.

[0014] 2. This utility model solves the inconvenience caused by manually opening and closing valves in the prior art by setting the valve on the water outlet pipe as a solenoid valve, which can quickly control the opening and closing of the valve by switching it on and off. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a partial sectional view of the present invention.

[0017] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle.

[0018] 1. Handle; 2. Push rod; 3. Measuring cylinder; 4. Worm gear; 5. Guide plate; 6. Connecting plate; 7. Base; 8. Scale; 9. External threaded cylinder; 10. Worm; 11. Mounting bracket; 12. Mounting plate; 13. First push plate; 14. Solenoid valve; 15. Water outlet pipe; 16. Wire hole; 17. Sealing ring; 18. Sealing gasket; 19. Second push plate; 20. Pedal. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figures 1-3 In this embodiment of the utility model, a road seepage measuring instrument includes a measuring cylinder 3. A scale 8 is provided on the front side of the measuring cylinder 3. An external threaded cylinder 9 is rotatably mounted on the outer side of the measuring cylinder 3. A worm gear 4 is fixedly mounted on the outer side of the external threaded cylinder 9. A mounting plate 12 is fixedly mounted on one side of the measuring cylinder 3. Mounting brackets 11 are fixedly mounted on both the front and rear sides of the mounting plate 12. A worm gear 10 is rotatably mounted between the two mounting brackets 11, and the worm gear 10 meshes with the worm gear 4. A second push plate 19 is threadedly connected to the outer side of the external threaded cylinder 9. A guide plate 5 is fixedly mounted on the other side of the measuring cylinder 3. One end of the guide plate 5 passes through the second push plate 19 and is slidably connected to the second push plate 19. A connecting plate 6 is symmetrically fixedly installed at the bottom of the second push plate 19. A base 7 is fixedly installed at the bottom of the two connecting plates 6. The base 7 is sleeved on the outside of the metering cylinder 3 and is slidably sealed with the metering cylinder 3. A first push plate 13 is slidably sealed inside the metering cylinder 3. A push rod 2 is fixedly installed on the top of the first push plate 13. A water outlet pipe 15 is fixedly installed at the bottom of the metering cylinder 3. A solenoid valve 14 is fixedly installed on the water outlet pipe 15. A pedal 20 is fixedly installed on both sides of the top of the metering cylinder 3.

[0021] A handle 1 is fixedly installed at one end of both the push rod 2 and the worm gear 10 to facilitate operation of the push rod 2 and the worm gear 10.

[0022] A sealing gasket 18 is embedded and fixed at the bottom of the base 7, which further improves the sealing performance.

[0023] A switch is fixedly installed on one of the connecting plates 6, and a storage battery is fixedly installed on the connecting plate 6 where the switch is installed. The solenoid valve 14 is electrically connected to the switch through a wire, and the switch is electrically connected to the storage battery through a wire.

[0024] The base 7 has a wire hole 16 for the wire to pass through, and a sealing ring 17 is fixedly installed inside the wire hole 16.

[0025] The working principle of this utility model is as follows:

[0026] In use, pull out the push rod 2 to add water to the measuring cylinder 3. After filling with water, insert the push rod 2 into the measuring cylinder 3. Remove dust, dirt, debris, and loose particles from the surface of the test point. Place the bottom of the base 7 against the ground and slowly add water to the measuring cylinder 3 until the water level reaches the highest mark of the measuring cylinder, usually 600ml or a set height, such as 150mm. At this point, the water pressure is zero. Step on the pedal 20, and then turn the handle 1 at one end of the worm gear 10 to drive the worm gear 10 to rotate. The worm gear 10 drives the worm wheel 4 to rotate, and the worm wheel 4 drives the external threaded cylinder 9 to rotate. During the rotation of the external threaded cylinder 9, it will drive the second push plate 19 connected to its outer thread to descend under the guidance of the guide plate 5. During the descent of the second push plate 19, it will pass through the connecting plate 6 drives the base 7 to descend. During the descent, the base 7 will press against the ground, and the sealing gasket 18 will also press against the ground, thus greatly enhancing the seal between the base 7 and the ground and preventing it from affecting the measurement of road seepage. Open the solenoid valve 14 at the bottom of the measuring cylinder 3 to allow water to flow into the space formed by the base 7 and the road surface. Continue to fill the cylinder with water until the water level in the measuring cylinder 3 drops to the set initial water head height, usually 125mm or 150mm. After reaching the initial water head, close the solenoid valve 14, start the stopwatch, and immediately open the solenoid valve 14 to allow the water to begin to seep into the road surface under the set water head pressure. Observe the water level drop in the measuring cylinder 3 and record the time required for the water level to drop by a certain amount, thus realizing the measurement of road seepage.

[0027] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A road surface seepage measuring instrument, comprising a measuring cylinder (3), characterized in that: The measuring cylinder (3) has a scale (8) on its front side. An external threaded cylinder (9) is rotatably mounted on the outside of the measuring cylinder (3). A worm gear (4) is fixedly mounted on the outside of the external threaded cylinder (9). A mounting plate (12) is fixedly mounted on one side of the measuring cylinder (3). Mounting brackets (11) are fixedly mounted on both the front and rear sides of the mounting plate (12). A worm (10) is rotatably mounted between the two mounting brackets (11). The worm (10) meshes with the worm gear (4). A second push plate (19) is threadedly connected to the outside of the external threaded cylinder (9). A guide plate (5) is fixedly mounted on the other side of the measuring cylinder (3). One end of the guide plate (5) passes through the second push plate. 19) and slidably connected with the second push plate (19). The bottom of the second push plate (19) is symmetrically fixedly installed with connecting plates (6). The bottom of the two connecting plates (6) is fixedly installed with a base (7). The base (7) is sleeved on the outside of the metering cylinder (3) and slidably sealed with the metering cylinder (3). The inside of the metering cylinder (3) is slidably sealed with a first push plate (13). The top of the first push plate (13) is fixedly installed with a push rod (2). The bottom of the metering cylinder (3) is fixedly installed with a water outlet pipe (15). A solenoid valve (14) is fixedly installed on the water outlet pipe (15). The top two sides of the metering cylinder (3) are fixedly installed with pedals (20).

2. The road surface seepage measuring instrument according to claim 1, characterized in that: A handle (1) is fixedly installed at one end of both the push rod (2) and the worm gear (10).

3. The road surface seepage metering instrument according to claim 1, characterized in that: A sealing gasket (18) is embedded and fixedly installed at the bottom of the base (7).

4. A road surface seepage measuring instrument according to claim 1, characterized in that: A switch is fixedly installed on one of the connecting plates (6), and a storage battery is fixedly installed on the connecting plate (6) on which the switch is installed. The solenoid valve (14) is electrically connected to the switch through a wire, and the switch is electrically connected to the storage battery through a wire.

5. A road surface seepage metering instrument according to claim 1, characterized in that: The base (7) has a wire hole (16) for the wire to pass through, and a sealing ring (17) is fixedly installed inside the wire hole (16).

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