Underwater photography support for bridge foundation scouring experiment
By designing an underwater photography rig with multi-dimensional adjustment components and rotation function, the problems of existing devices being unable to precisely adjust the shooting angle and limited space were solved, enabling efficient and accurate shooting of bridge foundation scour experiments.
Patent Information
- Application Number
- CN202520017029.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-06
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-01-06
AI Technical Summary
Existing underwater photography support devices for bridge foundations cannot precisely adjust the shooting angle, have limited shooting space, and are not flexible enough in movement, resulting in an inability to accurately record the scouring process.
An underwater photography bracket was designed, which includes front-to-back adjustment components, left-to-right adjustment components, and height adjustment components. Combined with a photo-taking bracket device, it enables flexible adjustment of the shooting point and pitch angle, and achieves 360° rotation and precise positioning through a robotic arm and rotating components.
It achieves flexible control and precise positioning of the shooting position, can accurately record the scouring process of bridge foundation, and has a simple structure, small footprint, and is easy to operate, making it suitable for a wide range of scenarios.
Smart Images
Figure CN223782594U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of bridge scouring experiment, especially to underwater photography support for bridge foundation scouring experiment. BACKGROUND
[0002] China is a country with many rivers and mountains, under the background of the rapid development of China's transportation industry, the number of highway bridges across rivers is also increasing significantly, which further improves China's road traffic network and brings much convenience for residents' travel. However, in recent years, bridge disasters caused by foundation scouring occur frequently, and scouring has become an important reason threatening the safety of bridges across rivers. After the bridge is built, in addition to the natural evolution of the riverbed, the riverbed scouring caused by the interference of the bridge pier with the water flow and the movement of the sediment also occurs, and they are intertwined and carried out at the same time, and the scouring process is relatively complex.
[0003] The local scouring of the bridge pier is a relatively complex process, which mainly occurs around the bridge pier and is manifested as bed scouring and sediment movement. According to the current theoretical and practical research results, the local scouring of the bridge pier is mainly caused by the following reasons: due to the water blocking effect of the bridge pier, a spiral flow is formed in front of the bridge pier and propagates and develops downstream; at the same time, a backflow area is formed downstream of the bridge pier, which forms a vortex with a hollow center, produces a rotational flow, and carries the sediment downstream to cause bed scouring; the lateral flow after the water blocking of the bridge pier will gradually form a horseshoe-shaped spiral flow, which will cause scouring to the terrain on both sides of the bridge pier, gradually drive the sediment movement of the bed surface around the bridge pier, and gradually develop downstream, thereby forming a scouring pit. However, some scouring problems have complex physical phenomena, and the basic rules are not clear, which need to be carried out in a wave-current flume through simulation tests.
[0004] In order to clearly understand the formation process of scouring, the selection of the underwater photographing support device is very important, because the test size of the water tank model test is much smaller than the size of the bridge engineering practice, so the underwater photographing support device needs to have the characteristics of small space occupation, accurate photographing angle, and convenient operation.
[0005] The existing underwater photographing support device for bridge foundation hydrodynamic experiment cannot accurately adjust the photographing angle and the space for photographing is limited, and the movement is not flexible enough, and the photographing device cannot be involved in some special positions and cannot be photographed, so the specific process of scouring formation cannot be accurately and clearly photographed and recorded. SUMMARY
[0006] In order to overcome or alleviate one or more of the above technical problems, the utility model aims to provide an underwater photography support for bridge foundation scouring experiment.
[0007] The utility model provides the following technical scheme:
[0008] The underwater photography support for bridge foundation scouring experiment comprises front and rear adjusting assemblies arranged on the edges of a water tank, left and right adjusting assemblies arranged on the front and rear adjusting assemblies, a height adjusting assembly, and a photographing support device inserted into the water tank, the photographing support device is movably connected to the height adjusting assembly, and the photographing support device is used for rotatably fixing a photographing device; the photographing point position of the photographing support device for bridge foundation scouring experiment is adjusted in the front and rear, left and right, and height directions, and the photographing pitch angle is adjusted through the front and rear adjusting assemblies, the left and right adjusting assemblies, and the height adjusting assembly.
[0009] According to some embodiments, the photographing support device comprises a U-shaped sleeve (4) arranged below the height adjusting assembly, a mechanical arm (31), and a clamping device (21), the photographing device is clamped in the clamping device (21); the tail end of the mechanical arm (31) is connected to the sleeve (4) and can rotate in the XY plane; the head end of the mechanical arm (31) is connected to the clamping device (21) and can rotate in the YZ plane.
[0010] According to some embodiments, the head end of the mechanical arm (21) is provided with a first rotating assembly (41) for rotatably fixing the photographing device, and the tail end is provided with a second rotating assembly (42), through which the mechanical arm (31) is rotated and positioned.
[0011] According to some embodiments, the second rotating assembly (42) is arranged at the lower end of the sleeve (4) and comprises a horizontal shaft (211) inserted into the sleeve (4), a sleeve groove (212), a horizontal shaft protrusion (213) arranged on the horizontal shaft, a spring (214), a limiting nut (215), and a rotating scale (16); the sleeve groove (212) is arranged inside the sleeve (4); the horizontal shaft (211) is fixedly connected to the tail end of the mechanical arm (31); the horizontal shaft protrusion (213) is fixedly arranged on the horizontal shaft (211) and coupled with the sleeve groove (212) arranged in the sleeve (4); the spring (214) is sleeved on the horizontal shaft (211) and arranged between the mechanical arm (31) and the sleeve (4); the limiting nut (215) is arranged at one end of the horizontal shaft (211), and the rotating scale (16) is arranged at the other end of the horizontal shaft (211).
[0012] According to some embodiments, the first rotating assembly (41) comprises a through hole arranged on the clamping device (21) and a threaded hole arranged at the head end of the mechanical arm (31), and the clamping device (21) and the head end of the mechanical arm (31) are movably and rotatably connected through a bolt passing through the through hole and the threaded hole.
[0013] According to some embodiments, the front and back adjusting assembly comprises two fixed rods (11) arranged oppositely and a longitudinal slider (12) connected between the two fixed rods (11), the longitudinal slider (12) slides along the fixed rods (11); the left and right adjusting assembly comprises a transverse slider (13) arranged above the longitudinal slider (12), the transverse slider (13) slides left and right along the longitudinal slider (12); the height adjusting assembly comprises a vertical slider (14) arranged on the transverse slider (13), the vertical slider (14) slides up and down along the transverse slider (13), and the lower part of the height adjusting assembly is connected with the photographing support device.
[0014] According to some embodiments, the fixed rods (11) and the longitudinal slider (12), the longitudinal slider (12) and the transverse slider (13) and the vertical slider (14) and the transverse slider (13) are connected through the mutual engagement of the protrusions and the grooves.
[0015] According to some embodiments, the two ends of the longitudinal slider (12), one end of the transverse slider (13) and two sides of the vertical slider (13) are all provided with limiters; the fixed rods (11), the longitudinal slider (12) and the transverse slider (13) are all provided with scales.
[0016] According to some embodiments, the mechanical arm (31), the vertical slider (14) and the longitudinal slider (12) are all provided with wire grooves, which facilitates the wiring of the photographing equipment and the real-time transmission of data.
[0017] Compared with the prior art, the underwater photographing support provided by the utility model has the following beneficial effects:
[0018] The underwater photographing support provided by the utility model can more conveniently and accurately align the photographing position, can flexibly control the position of the monitoring probe, can accurately move the photographing equipment to a certain point X, Y and Z in space, can rotate by 360 degrees, can accurately photograph the desired experimental phenomenon, and has the advantages of simple structure, small space occupied by the equipment, convenient operation, high efficiency, wide use scenarios and the like. BRIEF DESCRIPTION OF DRAWINGS
[0019] Figure 1 A schematic view of the underwater photographing support for bridge foundation scouring experiment provided by the utility model embodiment.
[0020] Figure 2 A rotating state schematic view of the second rotating assembly provided by the utility model embodiment.
[0021] Figure 3 A fixed state schematic view of the second rotating assembly provided by the utility model embodiment.
[0022] Fig.:
[0023] 1, simulate the pier; 2, water tank body; 3, water tank bottom; 4, sleeve; 11, fixed rod; 12, longitudinal slider; 13, transverse slider; 14, vertical slider; 15, wire slot; 16, rotary scale; 21, clamping device; 31, mechanical arm; 41, first rotary assembly; 42, second rotary assembly; 51, fixed assembly; 211, horizontal shaft; 212, sleeve groove; 213, horizontal shaft protrusion; 214, spring; 215, limit nut. DETAILED DESCRIPTION
[0024] The utility model is described in detail below in combination with the embodiments and drawings, but it needs to be understood that the embodiments and drawings are only used for exemplarily describing the utility model, and cannot constitute any limitation on the protection scope of the utility model. All reasonable changes and combinations included in the utility model spirit range fall into the protection scope of the utility model.
[0025] In the description of the utility model, it needs to be explained that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "front", "rear" and the like is the orientation or position relationship based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and cannot be understood as indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model; the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance, and in addition, unless otherwise explicitly specified and limited, the terms "set", "installed", "connected", "connected" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0026] The utility model is further described below in combination with the drawings.
[0027] Example 1
[0028] As Figure 1As shown, the embodiment provides an underwater photography support for bridge foundation scouring experiment, which comprises front and rear adjusting assemblies arranged on the edges of the water tank, left and right adjusting assemblies arranged on the front and rear adjusting assemblies, a height adjusting assembly, and a photographing support device arranged in the water tank. The front and rear adjusting assemblies comprise two fixed rods 11 arranged oppositely on the edges of the water tank and a longitudinal sliding block 12 striding over the two fixed rods 11, which slides forward and backward along the fixed rods 11; the left and right adjusting assemblies comprise a transverse sliding block 13 arranged above the longitudinal sliding block 12, which slides left and right along the longitudinal sliding block 12; the height adjusting assembly comprises a vertical sliding block 14 arranged on the transverse sliding block 13, which slides up and down along the transverse sliding block 13, and the lower part of the height adjusting assembly is connected with the photographing support device.
[0029] The front and rear adjusting assemblies and the left and right adjusting assemblies can adjust the horizontal position of the photographing device, so that the photographing device can be moved at the same horizontal height to find a suitable photographing angle. The height adjusting assembly can adjust the height of the photographing device, so that the photographing device can be moved at different heights to find a suitable photographing angle. Therefore, by the cooperation of the front and rear position adjusting assembly, the left and right position adjusting assembly, and the height position adjusting assembly, the photographing device can be moved to a certain point X, Y, Z in space, effectively solving the problems of limited space for photographing by traditional photographing equipment, insufficient flexibility in movement, and inability to photograph at certain special positions.
[0030] The photographing support device comprises a "U"-shaped sleeve 4 arranged below the height adjusting assembly, a mechanical arm 31, and a clamping device 21, and a photography or photographing device is clamped and fixed in the clamping device 21. The tail end of the mechanical arm 31 is connected with the "U"-shaped sleeve 4 arranged below the height adjusting assembly and can rotate in a first plane (XZ plane); the head end of the mechanical arm 31 is connected with the clamping device 21 and can rotate in a second plane (YZ plane); the first plane and the second plane are perpendicular to each other. The photographing device is fixed and placed by the clamping device 21.
[0031] The fixed rod 11 is provided with a scale line, and the length thereof should be greater than the length of the experimental area of the bridge foundation hydrodynamic experiment; the longitudinal sliding block 12, the transverse sliding block 13, and the vertical sliding block 14 are all provided with scales. The fixed rod 11 and the longitudinal sliding block 12 and the longitudinal sliding block 12 and the transverse sliding block 13 are connected through the mutually engaged protrusions and grooves, and the vertical sliding block 14 and the transverse sliding block 13 are connected through the mutually engaged protrusions and grooves.
[0032] The front and back adjusting assembly further comprises a first limiting member for limiting the longitudinal slider 12; the left and right adjusting assembly further comprises a limiting member for limiting the transverse slider 13; the height adjusting assembly further comprises a limiting member for limiting the vertical slider 13. The first limiting member is arranged at both ends of the longitudinal slider 12, the second limiting member is arranged at one end of the transverse slider 13, and the third limiting member is arranged at both sides of the vertical slider 13.
[0033] The first, second and third limiting members are all baffle plates, which are fixed by a screw rod penetrating through the baffle plate and being screwed with the baffle plate to prevent the sliders from sliding out.
[0034] As shown in Figure 1 , the mechanical arm 31 is provided with a rotating device at the head and tail, i.e. a first rotating assembly 41 arranged at the head and a second rotating assembly 42 arranged at the tail. The first rotating assembly 41 comprises a through hole arranged on the clamping device 21 and a threaded hole arranged at the head of the mechanical arm 31. A bolt is connected with the threaded hole after penetrating through the through hole, thereby forming the first rotating assembly 41. The clamping device can rotate 360° around the plane of the clamping device 21. The clamping device 21 is provided with a sliding groove above and below, an "L-shaped" telescopic rod is contained in the sliding groove, one end of a third spring is fixed on the "L-shaped" telescopic rod and the other end is fixed on the bottom of the clamping device 21. The width of the clamping device 21 is adjusted by adjusting the position of the "L-shaped" telescopic rod in the sliding groove. The clamping device 21 is a commonly used existing device. In the initial state, the third spring is in a balanced state. After the width of the clamping device 21 is adjusted by the "L-shaped" rod, the clamping device tightly presses the clamped shooting equipment under the tension of the third spring, thereby being fixed stably.
[0035] As shown in Figure 2 , Figure 3 , the second rotating assembly 42 is arranged at the lower end of the sleeve 4 and comprises a horizontal shaft 211 inserted into the sleeve 4, a sleeve groove 212, a horizontal shaft protrusion 213 arranged on the horizontal shaft 211, a spring 214 and a limiting nut 215, and a rotating scale 16. The horizontal shaft 211 is fixedly connected with the tail end of the mechanical arm 31, the horizontal shaft protrusion 213 is fixedly arranged on the horizontal shaft 211 and corresponds to the position of the sleeve groove 212 arranged in the sleeve 4, and the horizontal shaft protrusion 213 is clamped with the sleeve groove 212 in a fixed state, thereby having good stability. The spring 214 is sleeved on the horizontal shaft 211 and arranged between the mechanical arm 31 and the sleeve 4, thereby assisting the mechanical arm 31 to realize the functions of rotation and fixation. The limiting nut 215 is arranged at the longer end of the horizontal shaft 211, thereby limiting the displacement of the mechanical arm 31 in a fixed state and playing a reinforcing role. The rotating scale 16 is arranged at the other end of the horizontal shaft 211, thereby facilitating the checking of the positional relationship between the horizontal shaft protrusion 213 and the sleeve groove 212 in a rotating state and ensuring the corresponding state of the horizontal shaft protrusion 213 and the sleeve groove 212.
[0036] After loosening the limiting nut 215, push the horizontal shaft 211 away from the limiting nut 215, so that the horizontal shaft protrusion 213 is separated from the sleeve groove 212, at this time the second rotating assembly 42 is in a rotatable state. Rotate the mechanical arm 31, observe the rotating scale 16 and check whether the horizontal shaft protrusion 213 corresponds to the sleeve groove 212. Push back the horizontal shaft 211, so that the horizontal shaft protrusion 213 and the sleeve groove 212 are clamped with each other. Tighten the limiting nut 215, at this time the second rotating assembly 42 is in a fixed state.
[0037] The mechanical arm 31, the height adjusting assembly and the left-right adjusting assembly are provided with wire grooves, so that the underwater camera can be wired and the photographed data can be transmitted to the terminal device in real time. Therefore, the device is more intelligent and efficient.
[0038] When the bridge foundation scouring experiment needs to photograph a point with coordinates (X, Y, Z) and an angle α, the experimental steps are as follows:
[0039] 1. First, adjust the longitudinal slide 12 to slide along the scale on the fixed rod 11 to the X position to be detected and fix it;
[0040] 2. Then adjust the transverse slide 13 to slide along the scale on the longitudinal slide 12 to the Y position to be detected and fix it;
[0041] 3. Then adjust the first rotating assembly 41 and the second rotating assembly 42 to the angle α to be detected and fix them;
[0042] 4. Then press the camera device tightly on the clamping device 21;
[0043] 5. Then adjust the vertical slide 14 to slide along the scale on the transverse slide 13 to the Z position to be detected and fix it;
[0044] 6. Finally, through the assembly provided with a wire groove, the underwater camera transmits the photographed data to the terminal device in real time and observes the experimental process.
[0045] When the position to be detected in the bridge foundation scouring experiment changes and the angle to be detected does not change, the experimental steps are as follows:
[0046] 1. First, adjust the transverse slide 13 to slide along the scale on the longitudinal slide 12 to the changed position and fix it;
[0047] 2. Then adjust the transverse slide 13 to slide along the scale on the longitudinal slide 12 to the changed position and fix it;
[0048] 3. Then adjust the vertical slide 14 to slide along the scale on the transverse slide 13 to the changed position and fix it;
[0049] 4. Finally, through the assembly of the wire slot, the underwater camera transmits the data of the shooting to the terminal device and observes the experimental process.
[0050] The above embodiments are only preferred embodiments of the present application, and the protection scope of the present application is not limited to the above embodiments. Any technical scheme falling within the concept of the present application belongs to the protection scope of the present application. It should be pointed out that, for ordinary skilled in the art, improvements and refinements without departing from the principles of the present application, these improvements and refinements should also be considered as the protection scope of the present application.
Claims
1. An underwater photography support for bridge foundation scour experiments, characterized in that: The application relates to a bridge foundation scouring experiment photographing device, which comprises front and rear adjusting assemblies arranged on the edges of a water tank, left and right adjusting assemblies arranged on the front and rear adjusting assemblies, a height adjusting assembly, and a photographing support device arranged in the water tank, the photographing support device is movably connected to the height adjusting assembly, and the photographing support device is used for rotatably fixing a photographing equipment; the photographing point position of the bridge foundation scouring experiment and the photographing pitch angle are adjusted through the front and rear adjusting assemblies, the left and right adjusting assemblies, and the height adjusting assembly in the front and rear, left and right, and height directions respectively.
2. The underwater photography support for bridge foundation scour experiment according to claim 1, characterized in that: The photographing support device comprises a U-shaped sleeve (4) arranged below the height adjusting assembly, a mechanical arm (31), and a clamping device (21), the photographing equipment is clamped in the clamping device (21); the tail end of the mechanical arm (31) is connected with the sleeve (4) and can rotate in the XY plane; the head end of the mechanical arm (31) is connected with the clamping device (21) and can rotate in the YZ plane.
3. The underwater photography support for bridge foundation scour experiment according to claim 2, characterized in that: The head end of the mechanical arm (31) is provided with a first rotating assembly (41) used for rotatably fixing the photographing equipment, and the tail end is provided with a second rotating assembly (42), through which the mechanical arm (31) is rotated and positioned.
4. The underwater photography support for bridge foundation scour experiment according to claim 3, characterized in that: The second rotating assembly (42) is arranged at the lower end of the sleeve (4) and comprises a horizontal shaft (211) inserted into the sleeve (4), a sleeve groove (212), a horizontal shaft protruding block (213) arranged on the horizontal shaft, a spring (214), a limiting nut (215), and a rotating scale (16); the sleeve groove (212) is arranged in the sleeve (4); the horizontal shaft (211) is fixedly connected with the tail end of the mechanical arm (31); the horizontal shaft protruding block (213) is fixedly arranged on the horizontal shaft (211) and is coupled with the sleeve groove (212) arranged in the sleeve (4); the spring (214) is sleeved on the horizontal shaft (211) and arranged between the mechanical arm (31) and the sleeve (4); the limiting nut (215) is arranged at one end of the horizontal shaft (211), and the rotating scale (16) is arranged at the other end of the horizontal shaft (211).
5. The underwater photography support for bridge foundation scour experiment according to claim 3, characterized in that: The first rotating assembly (41) comprises a through hole arranged on the clamping device (21) and a threaded hole arranged at the head end of the mechanical arm (31), a bolt is arranged through the through hole and the threaded hole, and the clamping device (21) and the head end of the mechanical arm (31) are movably and rotatably connected.
6. The underwater photography support for bridge foundation scour experiment of claim 1, wherein: The front and rear adjusting assemblies comprise two fixed rods (11) arranged oppositely and a longitudinal sliding block (12) arranged across the two fixed rods (11), the longitudinal sliding block (12) slides along the fixed rods (11) in the front and rear directions; the left and right adjusting assemblies comprise a horizontal sliding block (13) arranged above the longitudinal sliding block (12), the horizontal sliding block (13) can slide along the longitudinal sliding block (12) in the left and right directions; the height adjusting assembly comprises a vertical sliding block (14) arranged on the horizontal sliding block (13), the vertical sliding block (14) can slide along the horizontal sliding block (13) in the up and down directions, and the lower part of the height adjusting assembly is connected with the photographing support device.
7. The underwater photography support for bridge foundation scour experiment according to claim 6, characterized in that: The fixed rod (11) and the longitudinal sliding block (12), the longitudinal sliding block (12) and the transverse sliding block (13) and the vertical sliding block (14) and the transverse sliding block (13) are slidably connected through mutually engaging protrusions and grooves.
8. The underwater photography support for bridge foundation scour experiment of claim 6, wherein: Both ends of the longitudinal sliding block (12), one end of the transverse sliding block (13) and both sides of the vertical sliding block (14) are provided with limiting members; the fixed rod (11), the longitudinal sliding block (12) and the transverse sliding block (13) are all provided with scales.
9. The underwater photography support for bridge foundation scour experiment of claim 6, wherein: The vertical sliding block (14) and the longitudinal sliding block (12) are both provided with wire grooves.
10. The underwater photography support for bridge foundation scour experiment of claim 5, wherein: The mechanical arm (31) is provided with a wire groove.