Bridge water seepage detection device

Abstract

The invention discloses a bridge water seepage detection device, which belongs to the technical field of bridge detection and comprises a base with a hole in the middle, and vacuum chucks are arranged on the peripheral side of the bottom of the base; an annular rotating seat is coaxially and rotatably connected in the base, a base is vertically and slidably arranged in the rotating seat, and a pushing structure used for driving the base to slide is arranged on the rotating seat; an annular liquid storage cavity is coaxially formed in the base, a plurality of downward liquid injection pipelines are arranged at the bottom of the liquid storage cavity, cylindrical liquid outlet pipelines connected with the outside are arranged at the bottoms of the liquid injection pipelines, and the diameters of the two ends of each liquid outlet pipeline gradually decrease in the direction away from the liquid outlet pipelines. Balls are movably arranged in the middles of the liquid outlet pipelines, and the diameters of the balls are larger than those of ports of the liquid outlet pipelines and smaller than those of the middles of the liquid outlet pipelines; a cavity is formed in the middle of the base; the objective of the invention is to solve the problem of poor sealing performance of an existing bridge water seepage detection device.

Description

Technical Field

[0001] The invention belongs to the technical field of bridge detection, and in particular relates to a bridge water seepage detection device. Background Art

[0002] A bridge is a road built at a height to provide transportation. Bridges are generally composed of superstructures, substructures and auxiliary structures. The superstructure mainly refers to the bridge span structure and support system; the substructure includes abutments, piers and foundations; and the auxiliary structures refer to the bridgehead slab, conical slope protection, revetment, diversion engineering, etc. Bridges are divided into four basic systems according to the structural system: beam bridges, arch bridges, rigid frame bridges, and cable-supported bridges.

[0003] During the construction of bridges, the water seepage performance of bridges is an important indicator of bridge stability. When testing for bridge water seepage, it is necessary to install sealing equipment on the bridge, inject water into the equipment, and measure the change in water volume over a period of time to test the water seepage performance of the bridge. However, existing bridge water seepage detection equipment often uses rubber sealing rings to seal the detection equipment. Generally, the surface flatness of bridge roads is poor, and the surface of bridge roads will be worn in outdoor environments, resulting in a further decrease in flatness. Therefore, simply relying on rubber rings for sealing can easily cause water to penetrate laterally outward, affecting the results of water seepage detection. Summary of the invention

[0004] In view of this, the present invention discloses a bridge water seepage detection device, which aims to solve the problem of poor sealing performance of the existing bridge water seepage detection device.

[0005] In order to achieve the above object, the present invention provides the following technical solutions:

[0006] A bridge water seepage detection device comprises a base with a hole in the middle, a vacuum suction cup is arranged on the peripheral side of the bottom of the base; an annular rotating seat is coaxially connected to the base, a base is arranged vertically slidingly in the rotating seat, and a pushing structure for driving the base to slide is arranged on the rotating seat; an annular liquid storage cavity is coaxially arranged inside the base, a plurality of downward liquid injection pipelines are arranged at the bottom of the liquid storage cavity, a cylindrical liquid outlet pipeline connected to the outside is arranged at the bottom of the liquid injection pipeline, the diameter of both ends of the liquid outlet pipeline gradually decreases in the direction away from the liquid outlet pipeline, and balls are movably arranged in the middle of the liquid outlet pipeline, the diameter of the balls is larger than the diameter of the port of the liquid outlet pipeline and smaller than the diameter of the middle of the liquid outlet pipeline; a concave cavity is opened in the middle of the base, a cylindrical cover plate is coaxially slidably arranged in the concave cavity, an elastic support member is arranged between the upper end of the cover plate and the base, a accommodating cavity is opened at the bottom of the cover plate, and a measuring cylinder vertically penetrating the base is connected to the top of the cover plate.

[0007] In this solution, a sealing adhesive material, such as glass glue, is placed in the liquid storage cavity. When the ball is not in contact with the bridge deck, the ball blocks the bottom of the liquid outlet pipeline under the action of gravity. During the inspection, the base is moved to the cleaned inspection point, and the bridge deck is adsorbed by a vacuum suction cup to initially stabilize the base; the base is pushed downward by the pushing structure for a distance until the ball contacts the ground, and the ball is pushed upward to the middle of the liquid outlet pipeline by the ground, so that the sealing adhesive material can flow out to the bridge deck through the liquid outlet pipeline port; the base is driven to rotate synchronously by rotating the rotating seat, so that the sealing adhesive material is more evenly coated on the bridge deck, and then the base is pushed against the bridge deck by the pushing structure, so that the base adheres to the bridge deck; at this time, the ball moves upward to contact the top port of the liquid outlet pipeline to prevent the sealing adhesive material from continuing to flow out; then water is injected into the measuring cylinder and the accommodating cavity for water seepage detection.

[0008] In this solution, sealing adhesive materials are used to enhance the sealing performance of the base to prevent water in the accommodating cavity from flowing out through the gap between the base and the bridge deck. In addition, during the coating process of the sealing adhesive material, the cover plate is always kept against the bridge deck under the action of the elastic support members to prevent the sealing adhesive material from flowing into the bridge area covered by the cover plate, affecting the normal water seepage in the area, and further affecting the accuracy of the results of bridge water seepage detection.

[0009] Furthermore, the number of the liquid storage chambers is two, and the diameters of the two liquid storage chambers are not equal; a coaxial annular cavity is provided at the bottom of the base, and the annular cavity is located between the two liquid storage chambers; a pressurizing device for ventilating the annular cavity is also included, and a pressure detection device for detecting the pressure in the annular cavity is provided in the annular cavity.

[0010] In this scheme, by setting up a pressurizing device, the pressure in the annular cavity is increased to prevent water from overflowing laterally through the gap between the base and the bridge deck, thereby avoiding affecting the accuracy of the results of bridge water seepage detection; in addition, by setting up a pressure detection device, the pressure in the annular cavity is maintained at the required strength to avoid the pressure in the annular cavity being too low and unable to prevent the lateral overflow of water. If the pressure is too high, the water at the edge of the cover plate will gather towards the middle, reducing the contact area between the water and the bridge deck, affecting the accuracy of the results of bridge water seepage detection.

[0011] Furthermore, an annular support frame is coaxially rotatably connected to the side wall of the annular cavity, a driving structure for driving the support member to rotate is arranged on the side wall of the annular cavity, a number of vertically arranged partitions are fixed on the support frame, the pressure detection equipment includes a number of pressure sensors equal to the number of partitions, and the pressure sensors are all arranged on the same side of the corresponding partitions; closing plates that are in contact with the ground are arranged between adjacent partitions, and gaps are arranged between both sides of the closing plates and the side wall of the annular cavity; the pressurizing equipment includes a number of booster pumps arranged on the corresponding closing plates.

[0012] In this solution, the annular cavity is divided into multiple areas by a partition, and the booster pump supplies gas to a single area separately. A closing plate is set to prevent the gas in the area from penetrating downward, resulting in a pressure change. The gaps set between the two sides of the closing plate and the side walls of the annular cavity increase the pressure at the contact point between the base and the bridge deck simultaneously. When cracks appear in the bridge deck horizontally, the gas in the area closes the detection point, so that water can only penetrate vertically, while the gas flows out horizontally to the outside area of ​​the base through the cracks. At this time, the pressure change in the area is detected by the pressure sensor, and the lateral penetration result of the bridge deck in the direction of the area can be detected, which can more comprehensively detect the penetration test results of the bridge deck; at the same time, the external placement of the partition can be adjusted by rotating the support frame, that is, the direction of the area can be adjusted, so that the lateral detection is more comprehensive.

[0013] Furthermore, a rubber sealing layer is provided on the peripheral side of the partition plate and the bottom surface of the closing plate.

[0014] Furthermore, a liquid level detection device is provided in the measuring cylinder.

[0015] Furthermore, universal wheels are provided at the bottom of the base.

[0016] Furthermore, a telescopic rod is provided between the vacuum suction cup and the base.

[0017] Furthermore, the top of the liquid outlet pipeline is provided with an elastic reset member facing the ball.

[0018] Other advantages, objectives and features of the present invention will be described in the following description and will be apparent to those skilled in the art to some extent, or those skilled in the art may be taught from the practice of the present invention. The objectives and other advantages of the present invention may be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to make the purpose, technical solution and beneficial effects of the present invention clearer, the present invention provides the following drawings for illustration:

[0020] Figure 1 It is a structural schematic diagram of an embodiment of the present invention;

[0021] Figure 2 A longitudinal cross-sectional view of an embodiment of the present invention;

[0022] Figure 3 for Figure 2 A local enlarged schematic diagram of the middle A;

[0023] Figure 4 It is a transverse cross-sectional view of the base in an embodiment of the present invention.

[0024] The markings in the accompanying drawings are as follows: base 1, vacuum suction cup 2, annular seat 3, base 4, driving structure 5, liquid storage chamber 6, liquid injection pipeline 7, liquid outlet pipeline 8, ball 9, cover plate 10, elastic support member 11, measuring cylinder 12, support frame 13, partition 14, pressure sensor 15, booster pump 16, closing plate 17, universal wheel 18, telescopic rod 19, elastic reset member 20. DETAILED DESCRIPTION

[0025] like Figures 1 to 4 As shown:

[0026] A bridge water seepage detection device comprises a base 1 with a hole in the middle, a vacuum suction cup 2 is arranged on the circumferential side of the bottom of the base 1; an annular rotating seat is coaxially connected to the base 1, a base 4 is vertically slidably arranged in the rotating seat, and a driving structure 5 for driving the base 4 to slide is arranged on the rotating seat; an annular liquid storage cavity 6 is coaxially arranged inside the base 4, a plurality of downward liquid injection pipelines 7 are arranged at the bottom of the liquid storage cavity 6, and a cylindrical liquid outlet pipeline 8 connected to the outside is arranged at the bottom of the liquid injection pipeline 7, and the The diameters of both ends of the liquid outlet pipeline 8 gradually decrease in the direction away from the liquid outlet pipeline 8, and a ball 9 is movably arranged in the middle of the liquid outlet pipeline 8, and the diameter of the ball 9 is larger than the diameter of the end of the liquid outlet pipeline 8 and smaller than the diameter of the middle of the liquid outlet pipeline 8; a concave cavity is opened in the middle of the base 4, and a cylindrical cover plate 10 is coaxially slidably arranged in the concave cavity, an elastic support member 11 is arranged between the upper end of the cover plate 10 and the base 4, a accommodating cavity is opened at the bottom of the cover plate 10, and the top of the cover plate 10 is connected to a measuring cylinder 12 which vertically penetrates the base 4.

[0027] In this solution, a sealing adhesive material, such as glass glue, is placed in the liquid storage chamber 6. When the ball 9 is not in contact with the bridge deck, the ball 9 blocks the bottom of the liquid outlet pipe 8 under the action of gravity. During the inspection, the base 1 is moved to the inspection point after cleaning, and the bridge deck is adsorbed by the vacuum suction cup 2 to initially stabilize the base 1; the pushing structure 5 is used to push the base 4 downward for a distance until the ball 9 contacts the ground, and the ball 9 is pushed upward to the middle of the liquid outlet pipe 8 by the ground, so that the sealing adhesive material can flow out to the bridge deck through the port of the liquid outlet pipe 8; the rotating seat is driven to drive the base 4 to rotate synchronously, so that the sealing adhesive material is more evenly coated on the bridge deck, and then the pushing structure 5 is used to push the base 4 against the bridge deck, so that the base 4 adheres to the bridge deck; at this time, the ball 9 moves upward to abut against the top port of the liquid outlet pipe 8 to prevent the sealing adhesive material from continuing to flow out; and then water is injected into the measuring cylinder 12 and the accommodating chamber for water seepage detection.

[0028] In this solution, sealing adhesive materials are used to enhance the sealing performance of the base 4 to prevent water in the accommodating cavity from flowing out through the gap between the base 4 and the bridge deck. In addition, during the coating process of the sealing adhesive material, the cover plate 10 is always kept against the bridge deck under the action of the elastic support member 11 to prevent the sealing adhesive material from flowing into the bridge area covered by the cover plate 10, affecting the normal water seepage in the area, and further affecting the accuracy of the results of the bridge water seepage detection.

[0029] In this embodiment, the number of the liquid storage chambers 6 is two, and the diameters of the two liquid storage chambers 6 are not equal; a coaxial annular cavity is provided at the bottom of the base 4, and the annular cavity is located between the two liquid storage chambers 6; a pressurizing device for ventilating the annular cavity is also included, and a pressure detection device for detecting the pressure in the annular cavity is provided in the annular cavity.

[0030] In this solution, by setting up a pressure-increasing device, the pressure in the annular cavity is increased to prevent water from overflowing laterally through the gap between the base 4 and the bridge deck, thereby avoiding affecting the accuracy of the results of the bridge water seepage detection. In addition, by setting up a pressure detection device, the pressure in the annular cavity is maintained at the required strength to avoid the pressure in the annular cavity being too low and unable to prevent the lateral overflow of water. If the pressure is too high, the water at the edge of the cover plate 10 will gather towards the middle, reducing the contact area between the water and the bridge deck, affecting the accuracy of the results of the bridge water seepage detection.

[0031] In this embodiment, an annular support frame 13 is coaxially rotatably connected to the side wall of the annular cavity, and a driving structure for driving the support member to rotate is provided on the side wall of the annular cavity (the driving structure in this embodiment is driven by a motor, which is a conventional technical means and is not drawn in the figure). A number of vertically arranged partitions 14 are fixed on the support frame 13, and the pressure detection equipment includes a number of pressure sensors 15 equal to the number of partitions 14, and the pressure sensors 15 are all arranged on the same side of the corresponding partitions 14; closing plates 17 that are in contact with the ground are provided between adjacent partitions 14, and gaps are provided between the two sides of the closing plate 17 and the side wall of the annular cavity; the pressurizing equipment includes a number of booster pumps 16 arranged on the corresponding closing plates 17.

[0032] In this solution, the annular cavity is divided into multiple areas by the partition 14, and the booster pump 16 supplies gas to a single area separately. The closing plate 17 is set to prevent the gas in the area from penetrating downward, resulting in pressure changes, and the gaps set between the two sides of the closing plate 17 and the side walls of the annular cavity increase the pressure of the contact part between the base 4 and the bridge deck synchronously. When cracks appear in the bridge deck horizontally, the gas in the area closes the detection point, so that water can only penetrate vertically, while the gas flows out horizontally to the external area of ​​the base 4 through the cracks. At this time, the pressure change in the area is detected by the pressure sensor 15, and the lateral penetration result of the bridge deck in the direction of the area can be detected, and the bridge deck penetration detection result can be more comprehensively detected; at the same time, the external placement of the partition 14 can be adjusted by rotating the support frame 13, that is, the direction of the area can be adjusted, so that the lateral detection is more comprehensive.

[0033] In this embodiment, a rubber sealing layer is provided on the peripheral side of the partition plate 14 and the bottom surface of the closing plate 17 .

[0034] By setting a rubber sealing layer, the gas flow between the areas is reduced, preventing the pressure between the areas from converging and affecting the detection results.

[0035] In this embodiment, a liquid level detection device is disposed in the measuring cylinder 12 .

[0036] By setting up liquid level detection equipment, water surface changes can be observed more accurately, and bridge seepage results can be detected more accurately.

[0037] In this embodiment, a universal wheel 18 is disposed at the bottom of the base 1 .

[0038] The universal wheels 18 are provided to facilitate the movement of the detection device.

[0039] In this embodiment, a telescopic rod 19 is provided between the vacuum suction cup 2 and the base 1 .

[0040] The telescopic rod 19 is provided to prevent the vacuum suction cup 2 from being unable to contact the bridge deck.

[0041] In this embodiment, the top end of the liquid outlet pipe 8 is provided with an elastic reset member 20 facing the ball 9 .

[0042] By providing the elastic reset member 20, a downward force is applied to the ball 9 to prevent the ball 9 from being unable to block the bottom end of the liquid outlet pipe 8 due to the viscosity of the sealing adhesive material.

[0043] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present invention.

Claims

1. A bridge water seepage detection device, characterized in that: The cam is provided with a plurality of camshafts, each of which ...

2. A bridge water seepage detection device according to claim 1, characterized in that: There are two liquid storage chambers, and the diameters of the two liquid storage chambers are not equal; a coaxial annular chamber is provided at the bottom of the base, and the annular chamber is located between the two liquid storage chambers; a pressurizing device for ventilating the annular chamber is also included, and a pressure detection device for detecting the pressure in the annular chamber is provided in the annular chamber.

3. A bridge water seepage detection device according to claim 2, characterized in that: An annular support frame is coaxially connected to the side wall of the annular cavity for rotation, a driving structure for driving the support member to rotate is arranged on the side wall of the annular cavity, a plurality of vertically arranged partitions are fixed on the support frame, the pressure detection equipment includes a plurality of pressure sensors equal to the number of the partitions, and the pressure sensors are all arranged on the same side of the corresponding partitions; a closing plate that fits the ground is arranged between adjacent partitions, and a gap is arranged between the two sides of the closing plate and the side wall of the annular cavity; the pressurizing equipment includes a plurality of booster pumps arranged on the corresponding closing plates.

4. A bridge water seepage detection device according to claim 3, characterized in that: The peripheral side of the partition plate and the bottom surface of the closing plate are provided with a rubber sealing layer.

5. A bridge water seepage detection device according to claim 4, characterized in that: A liquid level detection device is arranged in the measuring cylinder.

6. A bridge water seepage detection device according to claim 5, characterized in that: The bottom of the base is provided with universal wheels.

7. A bridge water seepage detection device according to claim 6, characterized in that: A telescopic rod is arranged between the vacuum suction cup and the base.

8. A bridge water seepage detection device according to claim 7, characterized in that: The top end of the liquid outlet pipeline is provided with an elastic reset piece facing the ball.

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