Asphalt pavement detection auxiliary device for expressway in cold region

Abstract

The utility model relates to a cold region expressway asphalt pavement detection auxiliary device, which comprises a circular heating seat plate, an annular rubber pad, a vertical screw rod, an upper supporting circular plate, a plastic measuring cylinder, a lower water guide pipe, a valve and a pipe connecting sleeve, the lower part of the circular heating seat plate is provided with a circular water seepage groove, and the lower part of the circular heating seat plate is connected with the annular rubber pad; the upper portion of the circular heating base plate is provided with a base plate upper pipe, the base plate upper pipe is provided with a water outlet hole, the upper portion of the base plate upper pipe is provided with an upper pipe connecting pipe, the lower portions of the vertical screws are connected with the circular heating base plate, and the vertical screws are evenly distributed on the axial side of the base plate upper pipe. The vertical screw is matched with the screw insertion hole and penetrates through the screw insertion hole, the supporting nut is in threaded connection through the vertical screw, the upper surface of the supporting nut is attached to the lower surface of the upper supporting circular plate, the upper portion of the vertical screw is connected with the nut, and the lower surface of the nut is attached to the upper supporting circular plate.

Description

Technical Field

[0001] This utility model relates to the field of highways in cold regions, and in particular to an auxiliary device for testing asphalt pavement of highways in cold regions. Background Technology

[0002] An existing patent (publication number: CN115979919A) discloses a bridge pavement seepage detection device. It includes a base, a support plate on top of the base, a measuring cylinder vertically mounted above the support plate, and a float inside the measuring cylinder. Sleeves are fixedly installed on the top of the support plate at both sides of the measuring cylinder, with support rods mounted on the sleeves. A top plate is fixedly installed on the top of the support rods, and a panel is mounted on the top plate. However, this device lacks a heating structure to slow down the freezing of the pavement, and its accuracy cannot be guaranteed under the influence of weather conditions when used in cold regions. Summary of the Invention

[0003] This utility model addresses the aforementioned shortcomings of the existing technology by providing an auxiliary device for testing asphalt pavement in cold regions. This device prevents inaccurate test results due to weather conditions in cold regions during asphalt pavement testing, and also prevents the impact of ice and snow cover on the asphalt pavement on the water seepage test results.

[0004] The objective of this utility model is achieved through the following technical solution:

[0005] An auxiliary device for testing asphalt pavement on highways in cold regions includes a circular heating base plate, an annular rubber pad, a vertical screw, an upper supporting circular plate, a plastic measuring cylinder, a lower water guide pipe, a valve, and a connecting sleeve. The circular heating base plate has a circular seepage groove at its lower part, and the annular rubber pad is connected to the lower part of the circular heating base plate. The axes of the circular heating base plate and the annular rubber pad coincide. The upper part of the circular heating base plate has a base plate tube with a water outlet hole. The upper part of the base plate tube has an upper pipe connecting sleeve. The lower part of the vertical screw is connected to the circular heating base plate. Multiple vertical screws are evenly distributed along the axis of the base plate tube. The upper supporting circular plate has multiple screw insertion holes. The vertical screws are adapted to the screw insertion holes and pass through the screw insertion holes. The support nut is threaded through the vertical screw. The upper surface of the support nut is in contact with the lower surface of the upper supporting circular plate. A nut is connected to the upper part of the vertical screw, and the lower surface of the nut is in contact with the upper supporting circular plate.

[0006] The lower part of the upper support circular plate is connected to the lower water guide pipe, which has an inner hole and a water guide pipe connector at the bottom. The upper part of the valve is connected to the water guide pipe connector by a thread, and the lower part of the valve is connected to the upper pipe connector by a thread. The upper support circular plate has a connector sleeve insertion hole, which is opposite to the inner hole of the lower water guide pipe. Beneficial effects

[0007] 1. In this utility model, the lower part of the vertical screw is fixedly installed on the circular heating base plate. The support nut supports the upper circular support plate. The vertical screw passes through the screw insertion hole and the connecting nut to fix the upper circular support plate, ensuring the position between the circular heating base plate and the upper circular support plate. The lower water guide pipe is installed and fixed below the upper circular support plate. The water guide pipe connector and the upper pipe connector are connected through the valve, so that the lower water guide pipe is connected to the pipe on the base plate. The plastic measuring cylinder is installed and fixed on the upper circular support plate. The plastic measuring cylinder is engraved with water level marks. The connector sleeve is inserted into the connector sleeve insertion hole. The lower water guide pipe can support the connector sleeve. The water in the plastic measuring cylinder enters the circular seepage tank through the lower water guide pipe, the valve, and the pipe on the base plate. When in use, the valve is closed and the plastic measuring cylinder is filled with water. Then the valve is opened to allow the water in the plastic measuring cylinder to flow into the circular seepage tank. When the water level in the plastic measuring cylinder drops more slowly, the valve is closed and the plastic measuring cylinder is filled with water again. This is used to test the permeability coefficient of asphalt pavement. This device is small in size and easy to handle.

[0008] 2. In use, the circular heating base plate of this utility model can be connected to an external power source to act as a heating plate, thereby heating the asphalt pavement being tested. This prevents inaccurate test results due to weather conditions in cold-region highway asphalt pavement testing, and also prevents the impact of ice and snow cover on the asphalt pavement on the water seepage test results. When using the device, place it on the asphalt pavement, clean the pavement to be tested, and seal the area where the circular rubber pad will contact the ground with a sealing strip to prevent water from flowing out of the circular seepage groove from the junction of the circular rubber pad and the ground. A counterweight is added to the circular heating base plate to ensure the sealing of the circular seepage groove. Attached Figure Description

[0009] Figure 1 This is a top-view axonometric drawing of an auxiliary device for detecting asphalt pavement on highways in cold regions, as described in this utility model.

[0010] Figure 2 The image shown is a bottom-view axonometric drawing of an auxiliary device for detecting asphalt pavement on highways in cold regions, as described in this utility model.

[0011] Figure 3 This is a top sectional view of an auxiliary device for detecting asphalt pavement on highways in cold regions, as described in this utility model.

[0012] Figure 4 This is a front view of an auxiliary device for detecting asphalt pavement on highways in cold regions, as described in this utility model.

[0013] Figure 5 This is a schematic diagram of the pipe sleeve structure described in this utility model. Detailed Implementation

[0014] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments:

[0015] Example 1:

[0016] An auxiliary device for testing asphalt pavement on highways in cold regions includes a circular heating base plate 01, an annular rubber pad 02, a vertical screw 04, an upper supporting circular plate 05, a plastic measuring cylinder 09, a lower water guide pipe 10, a valve 11, and a connecting sleeve 15. The circular heating base plate 01 has a circular seepage groove 18 at its lower part, and the annular rubber pad 02 is connected to the lower part of the circular heating base plate 01. The axes of the circular heating base plate 01 and the annular rubber pad 02 coincide. The upper part of the circular heating base plate 01 has an upper tube 12 with a water outlet 03. An upper connecting pipe 13 is located on the upper part of the upper tube 12. The lower part of the vertical screw 04 is connected to the circular heating base plate 01, and a fixed mounting is installed at the lower part of the vertical screw 04. A plurality of vertical screws 04 are evenly distributed axially on the tube 12 of the base plate, fixed on the circular heating base plate 01. The upper supporting circular plate 05 has a plurality of screw insertion holes 19, and the vertical screws 04 are adapted to the screw insertion holes 19. The vertical screws 04 pass through the screw insertion holes 19. The support nut 06 is threadedly connected to the vertical screws 04. The upper surface of the support nut 06 is in contact with the lower surface of the upper supporting circular plate 05, and the support nut 06 supports the upper supporting circular plate 05. The upper part of the vertical screws 04 is connected to the nut 07, and the lower surface of the nut 07 is in contact with the upper supporting circular plate 05, so that the upper supporting circular plate 05 is installed and fixed, ensuring the position between the circular heating base plate 01 and the upper supporting circular plate 05.

[0017] Example 2:

[0018] The lower part of the upper support circular plate 05 of this utility model is connected to the lower water guide pipe 10. The lower water guide pipe 10 is installed and fixed below the upper support circular plate 05. The lower water guide pipe 10 has a lower water guide pipe inner hole 08 and a water guide pipe connector 14 at the bottom. The upper part of the valve 11 is connected to the water guide pipe connector 14 by thread, and the lower part of the valve 11 is connected to the upper pipe connector 13 by thread. The water guide pipe connector 14 and the upper pipe connector 13 are connected by the valve 11, so that the lower water guide pipe 10 is connected to the pipe 12 on the seat plate. The upper support circular plate 05 has a connector sleeve insertion hole 16, which is opposite to the lower water guide pipe inner hole 08.

[0019] Example 3:

[0020] The connecting sleeve 15 of this utility model is adapted to the connecting sleeve insertion hole 16. The connecting sleeve 15 is inserted into the connecting sleeve insertion hole 16, and the lower surface of the connecting sleeve 15 is in contact with the upper surface of the lower water guide pipe 10. The lower water guide pipe 10 can support the connecting sleeve 15. The connecting sleeve 15 has an inner hole 17. The upper part of the connecting sleeve 15 is one centimeter higher than the upper supporting circular plate 05. The lower part of the plastic measuring cylinder 09 is connected to the upper supporting circular plate 05. The plastic measuring cylinder 09 is installed and fixed on the upper supporting circular plate 05. The plastic measuring cylinder 09 has water level markings. Its axis coincides with that of the upper supporting circular plate 05. The circular heating base plate 01 has a power connector 20 on its side. Water in the plastic measuring cylinder 09 enters the circular seepage tank 18 through the lower water pipe 10, valve 11, and the upper pipe 12. During use, valve 11 is closed, and the plastic measuring cylinder 09 is filled with water. Then, valve 11 is opened, allowing the water in the plastic measuring cylinder 09 to flow into the circular seepage tank 18. The water level in the plastic measuring cylinder 09 drops more slowly. Close valve 11 and refill plastic measuring cylinder 09 with water to test the permeability coefficient of asphalt pavement. This device is small in size and easy to handle. When using the device, the circular heating base plate 01 can be connected to an external power source to act as a heating plate, thereby heating the asphalt pavement being tested. This prevents inaccurate test results due to weather conditions in cold regions during asphalt pavement testing on highways in cold regions. It also prevents the permeability test results from being affected by ice and snow covering the asphalt pavement. When using the device, place it on the asphalt pavement and clean the asphalt pavement to be tested. Seal the position on the ground where it contacts the annular rubber pad 02 with a sealing strip to prevent water in the circular permeability groove 18 from flowing out from the junction of the annular rubber pad 02 and the ground during asphalt pavement testing on highways in cold regions. When using the device, add a counterweight to the circular heating base plate 01 to ensure the sealing of the circular permeability groove 18.

[0021] Example 4:

[0022] The installation steps of this utility model are as follows: First, connect the lower part of the vertical screw 04 to the circular heating base plate 01, connect the upper part of the annular rubber pad 02 to the circular heating base plate 01, connect the vertical screw 04 to the vertical screw 04 via threads, connect the lower part of the valve 11 to the upper pipe connector 13 via threads, connect the upper part of the valve 11 to the water guide pipe connector 14 via threads, pass the vertical screw 04 through the screw insertion hole 19 and connect the nut 07, connect the upper part of the lower water guide pipe 10 to the upper support circular plate 05, insert the connector sleeve 15 into the connector sleeve insertion hole 16, and connect the lower part of the plastic measuring cylinder 09 to the upper support circular plate 05.

[0023] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An auxiliary device for testing asphalt pavement on highways in cold regions, characterized in that: The system includes a circular heating base plate (01), an annular rubber pad (02), a vertical screw (04), an upper supporting circular plate (05), a plastic measuring cylinder (09), a lower water guide pipe (10), a valve (11), and a connecting sleeve (15). The circular heating base plate (01) has a circular seepage groove (18) at its lower part. The annular rubber pad (02) is connected to the lower part of the circular heating base plate (01). The axes of the circular heating base plate (01) and the annular rubber pad (02) coincide. The upper part of the circular heating base plate (01) has a base plate upper tube (12). The base plate upper tube (12) has a water outlet hole (03). The upper part of the base plate upper tube (12) has an upper tube connecting pipe (15). 13) The lower part of the vertical screw (04) is connected to the circular heating base plate (01). Multiple vertical screws (04) are evenly distributed on the axial side of the tube (12) on the base plate. The upper support circular plate (05) has multiple screw insertion holes (19). The vertical screws (04) are adapted to the screw insertion holes (19). The vertical screws (04) pass through the screw insertion holes (19). The support nut (06) is threaded through the vertical screws (04). The upper surface of the support nut (06) is in contact with the lower surface of the upper support circular plate (05). The upper part of the vertical screw (04) is connected to the nut (07). The lower surface of the nut (07) is in contact with the upper support circular plate (05).

2. The auxiliary device for testing asphalt pavement of highways in cold regions according to claim 1, characterized in that: The lower part of the upper support circular plate (05) is connected to the lower water guide pipe (10). The lower water guide pipe (10) has a lower water guide pipe inner hole (08). The bottom of the lower water guide pipe (10) has a water guide pipe connector (14). The upper part of the valve (11) is connected to the water guide pipe connector (14) by thread. The lower part of the valve (11) is connected to the upper pipe connector (13) by thread. The upper support circular plate (05) has a connector sleeve insertion hole (16). The connector sleeve insertion hole (16) is opposite to the lower water guide pipe inner hole (08).

3. The auxiliary device for testing asphalt pavement of highways in cold regions according to claim 2, characterized in that: The connecting sleeve (15) is adapted to the connecting sleeve insertion hole (16). The connecting sleeve (15) is inserted into the connecting sleeve insertion hole (16). The lower surface of the connecting sleeve (15) is in contact with the upper surface of the lower water pipe (10). The connecting sleeve (15) has a connecting sleeve inner hole (17).

4. The auxiliary device for testing asphalt pavement of highways in cold regions according to claim 1, characterized in that: The upper part of the connecting sleeve (15) is one centimeter higher than the upper support circular plate (05). The lower part of the plastic measuring cylinder (09) is connected to the upper support circular plate (05). The axis of the plastic measuring cylinder (09) coincides with that of the upper support circular plate (05). The side of the circular heating base plate (01) has a power connector (20).

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