CN113252488A - Pier is detection device under water - Google Patents
Pier is detection device under water Download PDFInfo
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- CN113252488A CN113252488A CN202110592203.4A CN202110592203A CN113252488A CN 113252488 A CN113252488 A CN 113252488A CN 202110592203 A CN202110592203 A CN 202110592203A CN 113252488 A CN113252488 A CN 113252488A
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- 238000001514 detection method Methods 0.000 title claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title abstract description 12
- 230000001360 synchronised effect Effects 0.000 claims abstract description 4
- 230000004888 barrier function Effects 0.000 claims 2
- 230000003628 erosive effect Effects 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 2
- 244000025254 Cannabis sativa Species 0.000 description 4
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 description 4
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 description 4
- 235000009120 camo Nutrition 0.000 description 4
- 235000005607 chanvre indien Nutrition 0.000 description 4
- 239000011487 hemp Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/56—Investigating resistance to wear or abrasion
- G01N3/567—Investigating resistance to wear or abrasion by submitting the specimen to the action of a fluid or of a fluidised material, e.g. cavitation, jet abrasion
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/06—Special adaptations of indicating or recording means
- G01N3/068—Special adaptations of indicating or recording means with optical indicating or recording means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/0641—Indicating or recording means; Sensing means using optical, X-ray, ultraviolet, infrared or similar detectors
- G01N2203/0647—Image analysis
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention relates to an underwater detection device for a pier, which effectively solves the problems that the existing pier erosion detection equipment has poor detection effect when used for erosion detection of a turbid water area, and the detection data and the actual large-in and large-out detection result are inaccurate; the technical scheme of its solution includes the fan-shaped cavity coaxial with the pier, the intrados opening of cavity, be equipped with an gasbag in the cavity, be equipped with a portable and flexible camera in the gasbag, the left and right sides of cavity respectively is equipped with an arc rather than coaxial, the synchronous looks or the dorsad removal of two arcs, the part that every arc was arranged in the cavity is fixed with a baffle along the cavity radial, the arc constitutes the piece that blocks of an L shape with corresponding the baffle, two blocks divide into three cavity with the cavity, the left and right sides of cavity respectively is equipped with a first gyro wheel, the left and right sides of cavity respectively is equipped with an arc cylinder coaxial with the cavity, the end that stretches out of every arc cylinder is fixed with a second gyro wheel.
Description
Technical Field
The invention relates to the field of bridge detection equipment, in particular to an underwater bridge pier detection device.
Background
The existing detection equipment is mostly a waterproof camera, photographs and photographs are taken around the bridge pier, the situation is suitable for rivers with clear water flow, but for the bridge pier in a yellow river basin, the visibility of the water flow is low, a pure waterproof camera cannot meet the requirement, the equipment can clear the visual field in a mode of circulating clear water at the present stage, but the mode has large water consumption and is inconvenient to operate, an inflatable balloon is arranged in front of the camera, an airbag space is formed in front of the camera and the bridge pier, and the airbag directly contacts with the hemp surface of the bridge pier in the mode, so that the water on the hemp surface cannot be discharged in time, and the hemp surface condition observed through the airbag is large in coming in and out with the actual condition, therefore, the detection photographing data is inaccurate, and the judgment of a detector on the bridge pier condition is influenced.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the pier underwater detection device, which effectively solves the problems that the existing pier erosion detection equipment has poor detection effect when used for erosion detection of turbid water areas, and the detection data and the actual large-scale detection result are inaccurate.
The technical scheme for solving the problems comprises a fan-shaped cavity coaxial with a pier, an inner arc surface of the cavity is provided with an opening, an interval is arranged between the opening position of the cavity and the pier, drain holes are formed in the left side wall and the right side wall of the cavity, an air bag is arranged in the cavity, an arc-shaped rail fixed on the inner wall of the outer arc surface of the cavity is arranged in the air bag, a remote control car is arranged on the arc-shaped rail, an electric telescopic rod along the radial direction of the cavity is arranged on the remote control car, a camera with a lighting device is arranged at the end part of the electric telescopic rod, arc-shaped plates coaxial with the cavity are respectively arranged on the left side and the right side of the cavity, an arc-shaped rack is coaxially fixed on the inner arc surface of each arc-shaped plate, gears driven by waterproof motors and meshed with the arc-shaped racks are respectively arranged on the left side wall and the right side wall of the cavity, synchronous rotation of the two waterproof motors drives the two arc-shaped plates to synchronously move towards or away from each other, the part that every arc was arranged in the cavity is fixed with one along the radial baffle of cavity, the arc constitutes the piece that blocks of an L shape with corresponding the baffle, two are blocked the piece and divide into three cavity with the cavity, the left and right sides of cavity respectively is equipped with a landing leg, install the first gyro wheel of an outer disc and pier laminating on every landing leg, the left and right sides of cavity respectively is equipped with an arc cylinder coaxial with the cavity, the end that stretches out of every arc cylinder is fixed with a second gyro wheel, when the piston rod of two arc cylinders did not stretch out, two arc cylinders are a minor arc with the arc structure of cavity formation, when the piston rod of two arc cylinders stretched out completely, two arc cylinders are a major arc with the arc structure that the cavity formed.
An air pump is arranged above the pier, the air pump is provided with two air supply valves, one valve is communicated with the air bag through a hose, the other valve is communicated with the two arc-shaped air cylinders through an air pipe, the pressure values of the two valves can be independently adjusted, and the air pump can positively rotate to suck air and reversely rotate to exhaust air.
The first idler wheels are in a roller shape, a notch for the arc-shaped air cylinder to pass through is formed between the first idler wheels, and the second idler wheels are in a roller shape.
Compared with the traditional equipment, the device has the following advantages:
1. this device falls into three cavity with the cavity through arc and baffle, the upper and lower lateral wall that two baffles and cavity = simultaneously form a long banding space under initial condition, the gasbag is outwards expanded through long banding space gradually when the inflation, this kind of expansion mode, make gasbag wall inseparable attached on the pier, move the in-process from the centre to both sides simultaneously and meet the pothole, gasbag wall is from one side water extrusion discharge in with the hole totally, and make gasbag wall be full of pothole bottom completely, when contrast traditional gasbag direct full contact, water in the pothole can not get rid of, when observing in the gasbag, darker pothole can only demonstrate more shallow state, thereby the effectual accuracy that improves the detection of pier pitted surface.
2. This device forms a window of hugging closely on the pier after the gasbag opens completely, and the camera that cooperation telecar and telescopic link drove can carry out detail and holistic shooting to the pitted surface on the pier for whole testing process pier pitted surface formation of image is more comprehensive, provides more favourable foundation to follow-up repair.
3. The gasbag of this device can adopt transparent also can adopt non-transparent, because the face of gasbag and pier laminating has can demonstrate the profile that the pier is numb the face totally in the gasbag inside, and precision equipment such as camera is whole to be wrapped up in the gasbag, can not intake in the removal and the process of shooing, can effectual protection camera equipment, reduces camera equipment's cost simultaneously.
Drawings
FIG. 1 is a top sectional view of the airbag of the present invention when the airbag is not inflated.
FIG. 2 is a top sectional view of the airbag of the present invention when it is inflated.
Fig. 3 is a front view of the present invention.
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
As shown in figures 1 to 3, the invention comprises a fan-shaped cavity 1 coaxial with a pier, an opening of an inner arc surface of the cavity 1, a gap is arranged between the opening position of the cavity 1 and the pier, drain holes 2 are arranged on the left side wall and the right side wall of the cavity 1, an air bag 3 is arranged in the cavity 1, an arc-shaped track 4 fixed on the inner wall of the outer arc surface of the cavity 1 is arranged in the air bag 3, a remote control car 5 is arranged on the arc-shaped track, an electric telescopic rod 6 along the radial direction of the cavity 1 is arranged on the remote control car 5, a camera 7 with a lighting device is arranged at the end part of the electric telescopic rod 6, arc-shaped plates 8 coaxial with the cavity 1 are respectively arranged on the left side and the right side of the cavity 1, an arc-shaped rack 9 is coaxially fixed on the inner arc surface of each arc-shaped plate 8, gears 10 driven by a waterproof motor and meshed with the arc-shaped racks 9 are respectively arranged on the left side wall and the right side wall of the cavity 1, the synchronous rotation of the two waterproof motors drives the two arc-shaped plates 8 to synchronously move in opposite directions or in opposite directions, a baffle 11 along the radial direction of the cavity 1 is fixed on the part of each arc-shaped plate 8 arranged in the cavity 1, the arc-shaped plates 8 and the corresponding baffles 11 form an L-shaped blocking piece, the cavity 1 is divided into three chambers by the two blocking pieces, the left side and the right side of the cavity 1 are respectively provided with a supporting leg 12, each supporting leg 12 is provided with a first roller 13 with an outer circular surface attached to a pier, the left side and the right side of the cavity 1 are respectively provided with an arc-shaped air cylinder 14 coaxial with the cavity 1, the extending end of each arc-shaped air cylinder 14 is fixed with a second roller 15, when the piston rods of the two arc-shaped air cylinders 14 are not extended, the arc structure that two arc cylinders 14 and cavity 1 formed is a minor arc, and when the piston rod of two arc cylinders 14 stretched out completely, the arc structure that two arc cylinders 14 and cavity 1 formed was an major arc.
In order to realize air supply of the air bag 3 and the air cylinder, an air pump 16 is arranged above the pier, the air pump 16 is provided with two air supply valves, one valve is communicated with the air bag 3 through a hose, the other valve is communicated with the two arc-shaped air cylinders 14 through an air pipe, the pressure values of the two valves can be independently adjusted, and the air pump 16 can rotate positively, suck air and rotate reversely to exhaust air.
In order to reduce the jolt caused by the fact that the first rollers 13 encounter pot holes when the pier goes upwards, the first rollers 13 are in a roller shape, gaps for the arc-shaped air cylinders 14 to pass through are formed between the first rollers 13, and the second rollers 15 are in a roller shape.
The specific working process of the invention is as follows: the device is hoisted by a hoisting tool and is arranged under water when in use, an air pump 16 is arranged above a pier, two arc plates 8 are driven to be drawn close to the middle of a cavity 1 by controlling two waterproof motors, at the moment, two baffle plates 11 are close to each other but are not contacted, space is provided for a remote control car 5 position and an electric telescopic rod 6, the two baffle plates 11 and the upper side wall and the lower side wall of the cavity 1 form a strip-shaped space, air in an air bag 3 and an arc cylinder 14 is pumped out by reversely pumping the air through the air pump 16, a piston rod of the arc cylinder 14 is contracted, at the moment, an arc structure formed by the two arc cylinders 14 and the cavity 1 is a minor arc, therefore, the outer edge of the pier can be attached when in meshing contact with the pier, an air inlet valve of the arc cylinder 14 is opened simultaneously under the assistance of hoisting equipment after the completion, so that the two arc cylinders 14 are inflated and the piston rod of an arc chamber is extended out, at the moment, the two arc cylinders 14 and the arc structure formed by the cavity 1 form a major arc, under the state, the two arc cylinders 14 can fix the cavity 1 on a pier, after the operation, a waterproof motor switch is driven to enable the waterproof motor to drive the arc rack 9 to drive the two arc plates 8 to move outwards slowly at a constant speed through the gear 10, meanwhile, air is supplied into the air bag 3 through the air pump 16, the air bag 3 is inflated to enable the air bag 3 to expand from a long strip-shaped space between the two baffle plates 11 to the pier surface, finally, the air bag is attached to the pier tightly, the arc plates 8 are folded continuously and move backwards, the interval between the two baffle plates 11 is increased continuously, the surface covered on the pier by the air bag 3 is gradually expanded from the middle to the two ends to finally attach the air bag 3 to the hemp surface of the pier tightly in a similar film covering mode, at the moment, the remote control device drives the remote control car 5 to move on the arc rail to conveniently observe the erosion conditions of different positions of the pier, and simultaneously, the extension and the contraction of the electric telescopic rod 6 are controlled, the erosion details can be viewed closely, and the pitted surface of the whole area can be observed macroscopically, so that the whole observation is more specific.
Accomplish to survey the back, move the arc track intermediate position in with the remote control dolly, and make 6 retractions of electric telescopic handle, exhaust through air pump 16 and realize the returning of gasbag 3 and contract, reverse drive arc 8 makes baffle 11 draw close from initial position again simultaneously, then can assist through hoisting equipment and realize this device and rotate around the pier, accomplish and bleed through arc cylinder 14 after the measurement and realize that two arc cylinders 14 and cavity 1 formed the excellent curved arc structure of excellent arc become the curved arc structure of inferior nature, this moment this device can break away from with the pier.
Claims (3)
1. An underwater detection device for a pier is characterized by comprising a fan-shaped cavity (1) coaxial with the pier, an opening of an inner arc surface of the cavity (1), a gap is reserved between the opening position of the cavity (1) and the pier, drain holes (2) are formed in the left side wall and the right side wall of the cavity (1), an air bag (3) is arranged in the cavity (1), an arc-shaped rail (4) fixed on the inner wall of the outer arc surface of the cavity (1) is arranged in the air bag (3), a remote control car (5) is installed on the arc-shaped rail, an electric telescopic rod (6) along the radial direction of the cavity (1) is installed on the remote control car (5), a camera (7) with a lighting device is installed at the end part of the electric telescopic rod (6), arc-shaped plates (8) coaxial with the cavity (1) are respectively arranged on the left side and the right side of the cavity (1), and arc-shaped racks (9) are coaxially fixed on the inner arc surface of each arc-shaped plate (8), the left side wall and the right side wall of the cavity (1) are respectively provided with a gear (10) which is driven by a waterproof motor and is meshed with the arc rack (9), the synchronous rotation of the two waterproof motors drives the two arc plates (8) to synchronously move in opposite directions or in opposite directions, the part of each arc plate (8) arranged in the cavity (1) is fixed with a baffle (11) along the radial direction of the cavity (1), the arc plates (8) and the corresponding baffles (11) form an L-shaped barrier part, the cavity (1) is divided into three chambers by the two barrier parts, the left side and the right side of the cavity (1) are respectively provided with a landing leg (12), each landing leg (12) is provided with a first roller (13) the outer circular surface of which is attached to a pier, the left side and the right side of the cavity (1) are respectively provided with an arc cylinder (14) which is coaxial with the cavity (1), and the extending end of each arc cylinder (14), when the piston rods of the two arc-shaped cylinders (14) do not extend out, the arc-shaped structures formed by the two arc-shaped cylinders (14) and the cavity (1) are minor arcs, and when the piston rods of the two arc-shaped cylinders (14) extend out completely, the arc-shaped structures formed by the two arc-shaped cylinders (14) and the cavity (1) are major arcs.
2. The underwater bridge pier detection device according to claim 1, wherein an air pump (16) is arranged above the bridge pier, the air pump (16) is provided with two air supply valves, one of the two air supply valves is communicated with the air bag (3) through a hose, the other valve is communicated with the two arc-shaped air cylinders (14) through an air pipe, pressure values of the two valves can be independently adjusted, and the air pump (16) can rotate forwards, suck air and rotate backwards to exhaust air.
3. The underwater bridge pier detection device according to claim 1, wherein the first rollers (13) are in a roller shape, gaps for the arc-shaped air cylinders (14) to pass through are formed between the first rollers (13), and the second rollers (15) are in a roller shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110592203.4A CN113252488B (en) | 2021-05-28 | 2021-05-28 | Pier detection device under water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110592203.4A CN113252488B (en) | 2021-05-28 | 2021-05-28 | Pier detection device under water |
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| Publication Number | Publication Date |
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| CN113252488A true CN113252488A (en) | 2021-08-13 |
| CN113252488B CN113252488B (en) | 2023-10-24 |
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| CN202110592203.4A Active CN113252488B (en) | 2021-05-28 | 2021-05-28 | Pier detection device under water |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117949387A (en) * | 2024-03-21 | 2024-04-30 | 河南黄河水工机械有限公司 | Hydraulic engineering construction quality check out test set |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9514359D0 (en) * | 1995-07-13 | 1995-09-13 | Sills Nicholas V | Underwater excavation and marine vehicle propulsion apparatus |
| US20030010404A1 (en) * | 2001-07-13 | 2003-01-16 | Mossman Stewart O. | Method and apparatus for underwater tree cutting and retrieval |
| KR100668484B1 (en) * | 2006-10-19 | 2007-01-16 | (주)평화엔지니어링 | Structure of protection erosion for pier foundation |
| WO2017115886A1 (en) * | 2015-12-29 | 2017-07-06 | 한동대학교 산학협력단 | Coastal erosion measurement device and coastal erosion restoration system |
| CN107387965A (en) * | 2017-08-31 | 2017-11-24 | 青岛罗博飞海洋技术有限公司 | A kind of Underwater Camera rotating basis |
| CN207963839U (en) * | 2018-03-10 | 2018-10-12 | 张军超 | A kind of road and bridge measuring device |
| CN209276989U (en) * | 2018-10-17 | 2019-08-20 | 武汉理航结构安全技术有限公司 | A kind of bridge submerged structure detection platform |
| CN111220514A (en) * | 2020-03-02 | 2020-06-02 | 山东建筑大学 | Underwater microbubble and floc measuring device thereof |
| CN111576209A (en) * | 2020-06-30 | 2020-08-25 | 武汉理工大学 | Modular pier underwater structure detection platform |
| CN111624210A (en) * | 2020-07-07 | 2020-09-04 | 江苏华淼电子科技有限公司 | Marine wind turbine tower section of thick bamboo intertidal zone corrosion detection device |
| JP2021056340A (en) * | 2019-09-30 | 2021-04-08 | 株式会社大林組 | Underwater imaging device and underwater imaging method |
-
2021
- 2021-05-28 CN CN202110592203.4A patent/CN113252488B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9514359D0 (en) * | 1995-07-13 | 1995-09-13 | Sills Nicholas V | Underwater excavation and marine vehicle propulsion apparatus |
| US20030010404A1 (en) * | 2001-07-13 | 2003-01-16 | Mossman Stewart O. | Method and apparatus for underwater tree cutting and retrieval |
| KR100668484B1 (en) * | 2006-10-19 | 2007-01-16 | (주)평화엔지니어링 | Structure of protection erosion for pier foundation |
| WO2017115886A1 (en) * | 2015-12-29 | 2017-07-06 | 한동대학교 산학협력단 | Coastal erosion measurement device and coastal erosion restoration system |
| CN107387965A (en) * | 2017-08-31 | 2017-11-24 | 青岛罗博飞海洋技术有限公司 | A kind of Underwater Camera rotating basis |
| CN207963839U (en) * | 2018-03-10 | 2018-10-12 | 张军超 | A kind of road and bridge measuring device |
| CN209276989U (en) * | 2018-10-17 | 2019-08-20 | 武汉理航结构安全技术有限公司 | A kind of bridge submerged structure detection platform |
| JP2021056340A (en) * | 2019-09-30 | 2021-04-08 | 株式会社大林組 | Underwater imaging device and underwater imaging method |
| CN111220514A (en) * | 2020-03-02 | 2020-06-02 | 山东建筑大学 | Underwater microbubble and floc measuring device thereof |
| CN111576209A (en) * | 2020-06-30 | 2020-08-25 | 武汉理工大学 | Modular pier underwater structure detection platform |
| CN111624210A (en) * | 2020-07-07 | 2020-09-04 | 江苏华淼电子科技有限公司 | Marine wind turbine tower section of thick bamboo intertidal zone corrosion detection device |
Non-Patent Citations (2)
| Title |
|---|
| DONG-WOO MAN: "Collaborative control method of underwater, surface and aerial robots based on sensor network", TRANSACTIONS OF THE KOREAN INSTITUTE OF ELECTRICAL ENGINEERS, vol. 65, no. 1, pages 135 - 141 * |
| 钟亚伟: "混凝土桥墩（台）表面质量研究", 中国优秀硕士学位论文全文数据库工程科技II辑, no. 2006, pages 98 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117949387A (en) * | 2024-03-21 | 2024-04-30 | 河南黄河水工机械有限公司 | Hydraulic engineering construction quality check out test set |
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| CN113252488B (en) | 2023-10-24 |
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