A rapid detection device for dam danger hazards based on a vehicle-mounted platform

Abstract

The present invention relates to the technical field of vehicle patrol and dam inspection, and specifically to a rapid detection device for dangerous conditions and hidden dangers of dams based on a vehicle-mounted platform, comprising a vehicle body, a radar detection device, a numerical control platform, a driving mechanism, a traction rope, a float, a measuring mechanism, a swivel and a measuring probe, wherein the traction rope is installed on the driving mechanism, the float is connected to the other end of the traction rope, the measuring mechanism is installed inside the float, the swivel is located inside the float, the driving mechanism drives the float to the upstream of the dam through the traction rope, the measuring mechanism judges the dangerous condition of the dam according to the difference in water flow velocity measured by the measuring probe, and when the difference in water flow velocity is greater than a set value, the measuring mechanism rotates the swivel and marks the position of the dangerous condition and hidden danger upstream of the dam, and by utilizing the difference in water flow velocity and the difference in water flow direction, the detection equipment is presented in different states, thereby being able to quickly detect the type of dangerous condition and hidden danger of the dam at that location.

Description

Technical Field

[0001] The invention relates to the technical field of vehicle patrol and dam hazard inspection, and in particular to a rapid detection device for dam hazard hidden dangers based on a vehicle-mounted platform. Background Art

[0002] Dams are artificial structures used to prevent flooding of rivers, lakes and other water bodies. Their main functions include flood control and water flow regulation, so inspections of the dams are necessary. Inspections of dams during flood seasons are mostly done manually or with the help of driving platforms equipped with physical detection equipment for continuous detection.

[0003] In the process of daily inspection and detection, it is necessary to monitor the flow velocity upstream of the dam. On the one hand, it can predict and warn the occurrence of floods through the rise of water levels. On the other hand, it can help evaluate the stability and safety of the dam structure by monitoring whether the flow velocity is abnormal, thereby avoiding the problem of dam collapse caused by the impact and erosion of the water flow. Common methods of detecting flow velocity in the prior art include flow meters, flow radars, and buoy tracking. However, the flow velocity upstream of the dam is turbulent, and ordinary flow meters are difficult to maintain stability in the water flow. In addition, the installation and replacement of flow meters are inconvenient, so they are difficult to use in daily detection. Flow radars use radar technology to detect flow velocity. By sending and receiving microwave signals and measuring the signal echo time to calculate the flow velocity, however, there is a certain time difference between the sending and receiving of signals in this way, and it is difficult to accurately know the instantaneous flow velocity of the water flow; although the buoy tracking method can timely observe the trajectory of the buoy moving on the water surface, and then calculate the water flow velocity through time, this measurement method can not only be used for the measurement of surface flow velocity, but its estimation calculation method will also cause large errors, and it is impossible to accurately know the size of the flow velocity. Therefore, the above methods cannot conveniently and accurately measure the water flow velocity upstream of the dam, and thus cannot timely know the flow change and water flow change direction at the dam, and cannot achieve rapid detection of dangerous hidden dangers.

[0004] In the prior art, there is a dam body leakage underwater detection system based on flow velocity sensing with patent number CN109781354A. Through the movement of the mobile platform and the pressure sensing of the flow velocity sensing device, the underwater leakage of the concrete panel rockfill dam panel can be detected quickly, efficiently and at low cost, and then the water flow velocity at the dam can be detected. However, this type of detection equipment cannot be moved conveniently, and cannot timely sense the direction of water flow change when the dam flow velocity changes, and thus it is difficult to know the specific reason for the change in water flow velocity, and thus it is difficult to accurately detect dangerous hidden dangers.

[0005] Based on this, in order to solve the problem that it is difficult to detect the specific cause of the change when the flow velocity upstream of the dam changes, and thus it is difficult to accurately detect dangerous hidden dangers, the present invention designs a rapid detection equipment for dangerous hidden dangers of the dam based on a vehicle-mounted platform. Summary of the invention

[0006] The present invention provides a rapid detection device for dangerous hidden dangers in dams based on a vehicle-mounted platform. In order to solve the problem that it is difficult to detect the specific cause of the change in flow velocity upstream of the dam, and thus it is difficult to accurately detect dangerous hidden dangers, the present invention makes use of the difference in water flow velocity and the difference in water flow direction to make the detection equipment present different states, so as to quickly detect the type of dangerous hidden dangers in the dam, thereby improving the accuracy of dam dangerous hidden danger detection.

[0007] In order to achieve the above object, the present invention provides the following technical solutions:

[0008] The present invention provides a rapid detection device for dangerous conditions and hidden dangers of dams based on a vehicle-mounted platform, comprising a vehicle body, a radar detection device, a numerical control platform, a driving mechanism, a traction rope, a floating block, a measuring mechanism, a swivel and a measuring probe, wherein the radar detection device is located above the vehicle body, and the radar detection device is used to detect various data except flow velocity, and the numerical control platform is installed on the vehicle body, and the numerical control platform is used to control the radar detection device and various electrically controlled driving parts in the device, and the driving mechanism is located above the vehicle body, and the traction rope is installed on the driving mechanism, and the driving mechanism is used to realize the release and recovery of the traction rope, and after the traction rope is pulled out by the floating block, the traction rope is driven to be recovered by the numerical control platform, thereby realizing repeated recycling;

[0009] The floating block is connected to the other end of the traction rope. The floating block can float upstream of the dam. At this time, under the pull of the traction rope, the floating block floats in an area, and the water surface height can be known through physical measurement. At the same time, by measuring the flow rate, the turbulence of the water flow at this time can be known, and the height of the liquid surface at this time can be judged through the CNC platform.

[0010] The measuring mechanism is installed inside the float, the swivel is located inside the float, and the measuring probe is installed on the swivel. The measuring probe here can use a conventional ultrasonic flowmeter, which transmits ultrasonic waves at the inlet of the swivel and measures the receiving time at the outlet; then the flow velocity in the swivel is calculated by the numerical control platform, and then the flow velocity near the swivel is known; the driving mechanism drives the float to the upstream of the dam through the traction rope, and the measuring mechanism judges the danger of the dam according to the difference in water flow velocity measured by the measuring probe. When the difference in water flow velocity is greater than the set value, the measuring mechanism rotates the swivel and marks the location of the dangerous hidden danger upstream of the dam.

[0011] The set value here is the value at which different water wheels can rotate relative to each other until they unfold under different differences in water flow velocities when the water flow velocity drives the water wheel to rotate. Based on this value as the bottom line, as long as the difference in water flow velocity is greater than the set value, the water wheels can rotate relative to each other, and then the measuring mechanism can rotate the swivel. The specific marking method is to use the positive direction of the non-rotating swivel or float as a reference, and the angle of rotation of the other swivel can reveal the approximate location of the dangerous hidden danger.

[0012] The driving mechanism on the vehicle body drives the floating block to move upstream of the dam. The floating block floats on the water surface under the action of the traction rope and its own material, and then it can be judged whether there is a dent or gap in the dam, so that timely remediation can be carried out. At the same time, when the water flow rate decreases, it can be known that the gravitational potential energy at that place increases, and then it can be known that the liquid level at that place rises, so that prevention of rising water can be taken in advance.

[0013] The driving mechanism includes a mounting frame, a return spring, a top block, a limit block, a hook, a torsion spring, an electric push rod, and a winding roller. The mounting frame is located at the edge of the vehicle body. The mounting frame is used to place a floating block and can enable the floating block to be ejected to the water surface and then reach the upstream of the dam. The area where the floating block is located can be controlled by the movement of the vehicle body, and the lateral position of the floating block and the vehicle body can also be adjusted. The return spring is installed on the mounting frame, and the top block is installed on the other end of the return spring. When the return spring is compressed, the top block contacts the floating block. The limit block is installed on the mounting frame, and the hook is located at the front end of the limit block. When the return spring is compressed, the hook locks the top block. The torsion spring is installed between the mounting frame and the limit block, and the electric push rod is installed above the limit block. The winding roller is installed on the mounting frame, and the traction rope is respectively wound around the two winding rollers.

[0014] In the initial state, the floating block is located on the mounting frame. At this time, the top block is compressed, which in turn drives the reset spring to be compressed, so that the limit block drives the hook to separate from the top block. At this time, the top block is acted upon by the reset spring, and the top block moves to the side away from the reset spring. The floating block for measurement can be automatically retracted and released through the push of the top block, thereby achieving a convenient measurement effect.

[0015] The measuring mechanism includes a water inlet, a turntable, a fixed shaft, a rotating shaft, a water wheel, a block, and a protrusion. The water inlet is opened on the side of the floating block close to the traction rope. The turntable is installed on the floating block. A swivel is provided in the turntable. The swivel is divided into a left ring and a right ring. The fixed shaft passes through the left ring, and the rotating shaft passes through the right ring. The water wheel is respectively installed on the fixed shaft and the rotating shaft. The water wheel is located in the swivel, the block is installed on the rotating shaft, and the protrusion is installed on the fixed shaft. The protrusion is embedded in the block, and the two are disengaged after the rotating shaft rotates.

[0016] In the initial state, the float gradually enters the water, and the liquid enters the swivel from the water inlet, which drives the water wheel to rotate. At this time, the water flow rate in the two swivels is the same, and the flow rate in the swivel is measured by the measuring probe.

[0017] The fixed axis and the rotating axis may be arc-shaped, so that when the rotating ring rotates, there is no interference, or there is a gap.

[0018] When a defect or depression occurs in a local area, the water flow velocity in the swivel near the area will increase relatively. When the flow velocities in the two swivels differ, the rotational speed of one of the water wheels differs from that of the other. On the one hand, the electronic sensing technology of the prior art can provide a specific value of the deflection angle, thereby quickly responding to the actual situation and giving the location of the area that needs to be addressed. On the other hand, the difference in flow velocity between the two swivels or the difference in rotational speed between the rotating swivel and the previous swivel can be compared to determine the specific difference in flow velocity at that location. This can help determine the specific problem of the dangerous situation at that location, and enable different pretreatments to be made according to different dangerous situations.

[0019] The turntable has three layers, the rotating ring is located at the top layer, the bottom layer of the turntable is the rotating plate, and the middle layer of the turntable is the flow-gathering layer. A traction ring is provided on the rotating plate, and the traction rope passes through the traction ring. The traction ring is initially located away from the hook, and when the traction rope is straightened, the traction ring is located at the hook.

[0020] The water inlet is in a funnel shape, and both sides of the floating block are designed to be streamlined.

[0021] In the initial state, the float is still located in the mounting frame, thereby ensuring that the water inlet is sealed in the initial state.

[0022] After the float is launched, the traction rope is not yet straightened, but the turntable is gradually rotating. When it rotates to 60°, it drives the water inlet of the convergence layer to open, thereby realizing the convergence of the liquid.

[0023] When the turntable rotates so that the traction ring is located at the midpoint of the winding roller and is directly opposite, the traction rope is straightened, thereby achieving normal flow rate detection and dangerous situation detection.

[0024] The rotating disk is located at the center of the floating block, and a counterweight is installed at the bottom of the rotating plate, so that the rotating disk can be quickly reset when entering the water, thereby improving the subsequent flow velocity detection.

[0025] A hydraulic chamber is installed on the right side of the front end of the right ring, and a right piston is slidably connected in the hydraulic chamber, and the tail end of the right piston is connected to the right ring. A collecting bin is installed on one side of the hydraulic chamber, and a one-way valve is installed at the connection between the hydraulic chamber and the collecting bin. The rotation angle of the right ring can be known by the moving distance of the right piston in the hydraulic chamber, where the right piston is hinged or only in contact with the right ring. The staff can know the moving distance of the right piston in the hydraulic chamber according to the amount of liquid in the collecting bin, thereby knowing the rotation angle of the right ring and knowing the change in the detected water flow velocity. The one-way valve can be opened or closed, and when closed, the oil can be injected back into the hydraulic chamber to improve the reset effect.

[0026] The mounting frame is movably connected to the vehicle body, and the mounting frame can be turned around the vehicle body. When the flow velocity at different positions needs to be measured, the lateral judgment can be achieved according to the lateral movement position of the vehicle body; and when the flow velocity at different points in the direction of water flow movement needs to be judged, the staff can turn the mounting frame, and the flow velocity at different points in the direction of water flow movement can be determined according to the travel distance of the vehicle body.

[0027] The beneficial effects of the present invention are as follows:

[0028] 1. The present invention is a rapid detection equipment for dangerous conditions and hidden dangers of dams based on a vehicle-mounted platform. The driving mechanism on the vehicle body drives the floating block to move, so that the floating block can be moved to the upstream of the dam, and then the floating block can float on the water surface under the action of the traction rope and its own material; at the same time, the water flow will flow through the swivel, thereby providing the water flow velocity at the place, and when the water flow velocity changes, the swivel will be driven to shift, and the shift of the swivel direction can be sensed by numerical control, so as to know the flow direction of the water flow area, so as to judge whether there is a depression or a gap at the dam; at the same time, when the water flow velocity decreases, it can be known that the gravitational potential energy at that place increases, and then it can be known that the liquid level height rises, thereby improving the accuracy of the detection of dangerous conditions and hidden dangers of the dam.

[0029] 2. The present invention is a rapid detection equipment for dangerous hidden dangers of dams based on a vehicle-mounted platform. When a defect or depression occurs in a local area, the water flow velocity in the rotating ring near the area will increase relatively. When the flow velocity in the two rotating rings differs, the rotation speed of one of the water wheels will differ from the rotation speed of the other water wheel, which will lead to the fixed shaft and the rotating shaft rotating at different speeds. At this time, the block and the protrusion will be misaligned, and the rotating ring where the rotating shaft is located will change its position laterally with the rotating ring where the fixed shaft is located. On the one hand, it can provide a specific value of the deflection angle through the electronic sensing of the existing technology, so as to quickly respond to the actual situation and give the location of the area that needs to be dealt with; on the other hand, it can compare the difference in flow velocity in the two rotating rings or the difference in rotation speed between the rotating ring and the previous rotating ring, so as to know the specific difference change in flow velocity at that place, and then know the specific problem of the dangerous situation at that place, and can make corresponding different pretreatments according to different dangerous situations, thereby improving the accuracy of dangerous hidden danger detection.

[0030] 3. The present invention is a rapid detection equipment for dangerous and hidden dangers of dams based on a vehicle-mounted platform. When the flow velocity of the left ring and the right ring differs due to depressions or gaps in some areas, the right ring will squeeze the hydraulic chamber through the right piston, and the right ring will move slowly through hydraulic drive, thereby avoiding excessive rotation of the right ring due to excessive flow velocity difference, and avoiding damage to the interior; at the same time, the hydraulic chamber can squeeze the oil into the collection bin. Under the record of the collection bin, the staff can, on the one hand, know the movement distance of the right piston in the hydraulic chamber according to the amount of liquid in the collection bin, and thus know the rotation angle of the right ring, and then know the situation that the detected water flow velocity has changed, and at the same time, know the angle value between the left ring and the right ring; on the other hand, the movement speed of the right piston in the hydraulic chamber is monitored according to the injection speed of the oil in the collection bin, and the rotation speed of the right ring can be monitored, so that the range of flow velocity change at this time can be known, and the degree of depression or gap can also be roughly judged, thereby improving the accuracy of dangerous and hidden danger detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the specific implementation mode of the present invention or the technical solution in the prior art, the drawings required for use in the specific implementation mode or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are one implementation mode of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0032] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0033] Figure 2 is a schematic diagram of the driving mechanism of the present invention;

[0034] Figure 3 The present invention Figure 2 The enlarged view of point A in the middle;

[0035] Figure 4 It is a schematic diagram of the swivel of the present invention;

[0036] Figure 5 This is a half-section schematic diagram of the swivel of the present invention;

[0037] Figure 6 It is a matching diagram of the clamping block and the protruding block of the present invention;

[0038] Figure 7 It is a schematic diagram of the present invention in which the floating block has not been ejected;

[0039] Figure 8 It is a schematic diagram of the present invention in which the floating block is ejected but the traction rope is not tightened;

[0040] Fig. 9 It is a schematic diagram of the floating block of the present invention after the traction rope is tightened.

[0041] In the figure: 1. vehicle body; 2. radar detection equipment; 3. CNC platform; 4. driving mechanism; 41. mounting frame; 42. reset spring; 43. top block; 44. limit block; 45. hook; 46. torsion spring; 47. electric push rod; 48. winding roller; 5. traction rope; 6. float; 7. measuring mechanism; 71. water inlet; 72. turntable; 721. turntable; 7211. traction ring; 722. focusing layer; 723. counterweight; 73. fixed shaft; 74. rotating shaft; 75. water wheel; 76. block; 77. bump; 8. swivel; 81. left ring; 82. right ring; 821. hydraulic chamber; 822. right piston; 823. collecting bin; 9. measuring probe. DETAILED DESCRIPTION

[0042] In order to better understand the above solution, the above technical solution is described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0043] like Figure 1As shown, the present invention provides a rapid detection equipment for dangerous hidden dangers of dams based on a vehicle-mounted platform, including a vehicle body 1, a radar detection device 2, a numerical control platform 3, a driving mechanism 4, a traction rope 5, a floating block 6, a measuring mechanism 7, a swivel 8 and a measuring probe 9, wherein the radar detection device 2 is located above the vehicle body 1, and the radar detection device 2 is used to detect various data except flow velocity, such as data monitoring of the dam and its surrounding terrain, settlement and displacement of the dam, and specific conditions below the dam, such as various parameters such as hidden geological faults and water infiltration paths, the numerical control platform 3 is installed on the vehicle body 1, and the numerical control platform 3 is used to control the radar detection device 2 and various electrically controlled driving parts in the device, the driving mechanism 4 is located above the vehicle body 1, and the traction rope 5 is installed on the driving mechanism 4, and the driving mechanism 4 is used to realize the release and recovery of the traction rope 5, and after the traction rope 5 is pulled out by the floating block 6, the traction rope 5 is driven to be recovered by the numerical control platform 3, thereby realizing repeated recycling;

[0044] The floating block 6 is connected to the other end of the traction rope 5. The floating block 6 can float upstream of the dam, and then under the pulling of the traction rope 5, the floating block 6 floats in an area. Since the water upstream of the dam will inevitably move downstream, when the floating block 6 is on the water surface, the water flow will drive the floating block 6 to move downstream. At this time, the traction rope 5 is bound to be in a taut state. At this time, the lateral distance between the floating block 6 and the vehicle body 1 is measured, and then the height of the floating block 6 from the vehicle body 1 can be calculated by the length of the traction rope 5; at the same time, by measuring the flow rate, the turbulence of the water flow at this time can be known, and then the numerical control platform 3 can be used to judge this The height of the liquid level at that time, the measuring mechanism 7 is installed inside the float 6, the swivel 8 is located in the float 6, and the measuring probe 9 is installed on the swivel 8. The measuring probe 9 here can use a conventional ultrasonic flowmeter, by emitting ultrasonic waves at the entrance of the swivel 8, measuring the receiving time at the outlet, and then calculating the flow velocity in the swivel 8 through the numerical control platform 3, and then knowing the flow velocity near the swivel 8; the driving mechanism 4 drives the float 6 to the upstream of the dam through the traction rope 5, and the measuring mechanism 7 feeds back the water flow height upstream of the dam according to the steering direction of the swivel 8 and the water flow velocity measured by the measuring probe 9.

[0045] The swivel 8 and the water inlet 71 can be integrated here, and both sides need to be sealed by a rubber layer to prevent water from entering between the swivels 8.

[0046] The driving mechanism 4 on the vehicle body 1 drives the floating block 6 to move, and then the floating block 6 can be moved to the upstream of the dam, and then float on the water surface under the action of the traction rope 5 and its own material. At the same time, the water flow will flow through the swivel 8, and then provide the water flow velocity at that place; however, when the water flow velocity changes, the swivel 8 will be driven to deviate. People can sense the deviation of the direction of the swivel 8 and then know the flow direction of the water flow area, and further determine whether there is a depression or gap at the dam, so as to facilitate timely remedial measures. At the same time, when the water flow velocity decreases, it can be known that the gravitational potential energy at that place increases, and then it can be known that the liquid level rises, so that it can be prevented in advance against rising water.

[0047] like Figure 2-3 As shown, the driving mechanism 4 includes a mounting frame 41, a return spring 42, a top block 43, a limit block 44, a hook 45, a torsion spring 46, an electric push rod 47, and a winding roller 48. The mounting frame 41 is located at the edge of the vehicle body 1. The mounting frame 41 is used to place the floating block 6, and can make the floating block 6 ejected to the water surface, and then reach the upstream of the dam. The area where the floating block 6 is located can be controlled by the movement of the vehicle body 1, and the lateral position of the floating block 6 and the vehicle body 1 can also be adjusted. The return spring 42 is installed on the mounting frame 41. The top block 43 is installed on the other end of the reset spring 42. When the reset spring 42 is compressed, the top block 43 contacts the floating block 6. The limit block 44 is installed on the mounting frame 41. The hook 45 is located at the front end of the limit block 44. When the reset spring 42 is compressed, the hook 45 locks the top block 43. The torsion spring 46 is installed between the mounting frame 41 and the limit block 44. The electric push rod 47 is installed above the limit block 44. The winding roller 48 is installed on the mounting frame 41, and the traction rope 5 is respectively wound around the two winding rollers 48.

[0048] In the initial state, the floating block 6 is located on the mounting frame 41, and the top block 43 is compressed, thereby driving the return spring 42 to be compressed. Under the action of the hook 45 and the torsion spring 46, the top block 43 is fixed at the position closest to the center of the vehicle body 1, and under the action of the electric push rod 47, the limit block 44 rotates around the torsion spring 46, so that the limit block 44 drives the hook 45 to disengage from the top block 43. At this time, the top block 43 is affected by the return spring 42, and then the top block 43 moves to the side away from the return spring 42, driving the floating block 6 to pop out, and the floating block 6 will be pulled by the traction rope 5 and will not be out of the control of the vehicle body 1, and then the floating block 6 can be automatically retracted and released to achieve the effect of convenient measurement. At the same time, the electric push rod 47 is retracted after the pressing is completed, and the hook 45 is automatically reset under the action of the torsion spring 46. At this time, the floating block 6 is put into the mounting frame 41 again, which will drive the top block 43 to shrink inward, and the hook 45 is squeezed and clamped to the top block 43, thereby achieving repeated use.

[0049] like Figure 4-7As shown, the measuring mechanism 7 includes a water inlet 71, a turntable 72, a fixed shaft 73, a rotating shaft 74, a water wheel 75, a block 76, and a protrusion 77. The water inlet 71 is opened on the side of the floating block 6 close to the traction rope 5. The turntable 72 is installed on the floating block 6. A swivel 8 is provided in the turntable 72. The swivel 8 is divided into a left ring 81 and a right ring 82. The fixed shaft 73 is arranged through the left ring 81, and the rotating shaft 74 is arranged through the right ring 82. The water wheel 75 is respectively installed on the fixed shaft 73 and the rotating shaft 74. The water wheel 75 is located in the swivel 8, the block 76 is installed on the rotating shaft 74, and the protrusion 77 is installed on the fixed shaft 73. The protrusion 77 is embedded with the block 76, and the two are disengaged after the rotating shaft 74 rotates.

[0050] In the initial state, the float 6 gradually enters the water, and the liquid enters the inside of the swivel 8 from the water inlet 71. At this time, driven by the flow direction of the liquid, the traction rope 5 is gradually stretched. When the liquid enters the swivel 8, it will drive the water wheel 75 to rotate. At this time, the water flow rate in the two swivels 8 is the same, resulting in the same rotation speed of the water wheel 75, and then the fixed shaft 73 and the rotating shaft 74 rotate coaxially and at the same speed. At this time, the block 76 is engaged with the protrusion 77, and the two swivels 8 move in the same direction, and then the flow rate in the swivel 8 is measured by the measuring probe 9.

[0051] At the same time, under the traction in the flow direction of the water flow, the traction rope 5 is stretched straight, and the length of the traction rope 5 is fixed. The staff can measure the lateral projection length of the buoy 6 from the vehicle to know the height of the buoy 6 at this time, and then combine the flow velocity measured there, and use the gravitational potential energy to calculate the height there. Specifically, the faster the flow velocity upstream of the dam, the smaller the gravitational potential energy. Through the above two methods, the water flow velocity can be monitored, and the water flow velocity can be accurately detected.

[0052] When a defect or depression occurs in a local area, the water flow velocity in the rotating ring 8 near the area will increase relatively. When the flow velocities in the two rotating rings 8 differ, the rotation speed of one of the water wheels 75 differs from the rotation speed of the other water wheel 75, which will drive the fixed shaft 73 and the rotating shaft 74 to rotate at different speeds, and the two will rotate relative to each other. At this time, the block 76 and the protrusion 77 will be misaligned. After the fixed shaft 73 and the rotating shaft 74 are separated from each other, the rotating ring 8 where the rotating shaft 74 is located will change its position laterally with the rotating ring 8 where the fixed shaft 73 is located. It will rotate with the rotating shaft at one end of itself, and then realize unidirectional rotation. On the one hand, it can provide a specific value of the deflection angle through the electronic induction of the existing technology, so as to quickly respond to the actual situation and give the location of the area that needs to be dealt with; on the other hand, it can be compared by comparing the difference in the flow velocity in the two rotating rings 8 or the difference in the rotation speed of the rotating ring 8 that is rotating with the rotating ring 8 before, so as to know the specific difference change in the flow velocity at that place, and then know the specific problem of the dangerous situation at that place, and make corresponding different pretreatments according to different dangerous situations.

[0053] like Figure 7-9 As shown, the rotating disk 72 has three layers, the rotating ring 8 is located at the top layer, the bottom layer of the rotating disk 72 is a rotating plate 721, and the middle layer of the rotating disk 72 is a flow-gathering layer 722. A traction ring 7211 is provided on the rotating plate 721, and the traction rope 5 passes through the traction ring 7211. The traction ring 7211 is initially located away from the hook 45. When the traction rope 5 is stretched straight, the traction ring 7211 is located at the hook 45.

[0054] The water inlet 71 is in a funnel shape, and both sides of the floating block 6 are designed to be streamlined.

[0055] In the initial state, the float 6 is still located in the mounting frame 41, and the water inlet 71 is not exposed to the outside. The traction ring 7211 is at an angle of 120° from the straight line where the center of the turntable 72 is located and the midpoint of the winding roller 48 is at an angle of 120° from the center of the turntable 72, thereby ensuring that the water inlet 71 is sealed in the initial state to prevent the water inlet 71 from being affected by the external environment, thereby preventing the water wheel 75 from being affected by wind and rotating in the initial state. If the rotation speeds of the two water wheels 75 are different, the fixed shaft 73 and the rotating shaft 74 will be misaligned before they enter the water, which will affect the detection effect of the swivel 8 after entering the water.

[0056] After the float 6 is launched, the traction rope 5 is not yet straightened, but the turntable 72 is gradually rotating. When it rotates to 60°, the turntable 72 drives the water inlet 71 of the focusing layer 722 to open, and water flows in from the water inlet 71, thereby initially stabilizing the float 6. At the same time, water flows in from the multiple holes of the water inlet 71 and then flows out from the single hole of the water outlet, realizing liquid convergence. The liquid on both sides will gather the float 6 to the center where the traction rope 5 is released, avoiding excessive deviation of the float 6 and reducing the impact on flow rate detection.

[0057] When the turntable 72 rotates so that the traction ring 7211 is located at the midpoint of the winding roller 48 and is facing it, the traction rope 5 is straightened and the turntable 72 rotates again, driving the swivel 8 to face the direction of the water flow, so that the liquid flows from the swivel 8 and the water wheel 75 rotates, realizing normal flow rate detection and danger detection.

[0058] like Figure 6 As shown, the rotating disk 72 is located at the center of the floating block 6, and a counterweight block 723 is installed at the bottom of the rotating plate 721. The rotating disk 72 can be quickly reset due to the counterweight block 723 when entering the water, so as to avoid that when the rotating disk 72 rotates to the water inlet 71 in the flow-gathering layer 722 facing the water flow direction, the floating block 6 has not yet floated on the water surface. At this time, when the three-hole water inlet 71 makes the water on both sides of the floating block 6 gather toward the front end of the floating block 6, the lateral position deviation of the floating block 6 cannot be balanced, and the floating block 6 will gradually drift away from the center of the winding roller 48, affecting the subsequent flow velocity detection.

[0059] like Figure 4-5 As shown, a hydraulic chamber 821 is installed on the right side of the front end of the right ring 82, and a right piston 822 is slidably connected in the hydraulic chamber 821, and the tail end of the right piston 822 is connected to the right ring 82. A collecting bin 823 is installed on one side of the hydraulic chamber 821, and a one-way valve is installed at the connection between the hydraulic chamber 821 and the collecting bin 823.

[0060] When the flow rate of the left ring 81 and the right ring 82 differs due to depressions or gaps in some areas, the right ring 82 will squeeze the hydraulic chamber 821 through the right piston 822, and the right ring 82 will move slowly through hydraulic drive, avoiding the problem of excessive rotation of the right ring 82 due to excessive flow rate difference; at the same time, the hydraulic chamber 821 can squeeze the oil into the collection bin 823. Under the record of the collection bin 823, the staff can know the moving distance of the right piston 822 in the hydraulic chamber 821 according to the amount of liquid in the collection bin 823, and thus know the rotation angle of the right ring 82, and can record and process the change of the detected water flow rate in time, and at the same time know the angle value between the left ring 81 and the right ring 82; on the other hand, the moving speed of the right piston 822 in the hydraulic chamber 821 can be monitored according to the injection speed of the oil in the collection bin 823, so as to monitor the rotation speed of the right ring 82, judge the range of flow rate change at this time, and also roughly judge the degree of depression or gap, thereby improving the accuracy of dangerous hidden danger detection.

[0061] The mounting frame 41 is movably connected to the vehicle body 1, and the mounting frame 41 can turn around the vehicle body 1. When it is necessary to measure the flow velocity at different positions, the flow velocity at different lateral positions can be determined according to the lateral movement position of the vehicle body 1, and when it is necessary to determine the flow velocity at different points in the direction of water flow movement, the staff can turn the mounting frame 41, and the mounting frame 41 is located at the rear of the vehicle, and the flow velocity at different points in the direction of water flow movement can be determined according to the travel distance of the vehicle body 1; at the same time, the change in position in different directions can be used to accurately determine the specific position of the depression and the gap through the change in the angle between the left ring 81 and the right ring 82.

[0062] When it is necessary to measure the flow velocity upstream of the dam, the radar detection equipment 2 is driven by the vehicle body 1 to move upstream in the direction of water flow, and various values ​​are measured by the CNC platform 3. At the same time, the traction rope 5 is wound by the driving mechanism 4, and the float 6 is installed on the driving mechanism 4. The end of the float 6 is installed on the end of the traction rope 5. The float 6 is ejected into the water under the action of the driving mechanism 4, and then the flow velocity of the water flow at that location is measured by the measuring probe 9 on the swivel 8. When the water flow velocity changes, the measuring mechanism 7 is used to detect whether the change in water flow is caused by a depression or gap in the dam.

[0063] Specifically, the vehicle body 1 is moved to the area to be detected, and the electric push rod 47 drives the limit block 44 to rotate around the torsion spring 46, drives the hook 45 to move upward, and the top block 43 is pushed out under the action of the reset spring 42, pushing the floating block 6 to move into the water, at which time the traction rope 5 on the winding roller 48 will be driven to gradually release the rope; the traction ring 7211 drives the rotating plate 721 to rotate, gradually opening the water inlet 71 and the water outlet of the gathering layer 722, driving the liquid to pass through the gathering layer 722, and as the traction rope 5 is gradually straightened, the gathering layer 722 is closed, and the swivel 8 is facing the water flow direction. The water flows through the swivel 8, driving the water wheel 75 to rotate, and at the same time, the measuring probe 9 measures the liquid flow rate at this location;

[0064] When a sag or crack occurs in the dam, the water flow velocity in the swivel 8 near the area will increase relatively. When the flow velocities in the two swivels 8 differ, the rotation speed of one water wheel 75 differs from the rotation speed of the other water wheel 75, which will drive the fixed shaft 73 and the rotating shaft 74 to rotate at different speeds, and the two will rotate relative to each other, which will cause the block 76 and the protrusion 77 to be misaligned. After the fixed shaft 73 and the rotating shaft 74 are separated from each other, the swivel 8 where the rotating shaft 74 is located will be aligned with the swivel where the fixed shaft 73 is located. 8 will undergo a lateral movement and position change, and it will rotate with the shaft at one end of itself, thereby realizing the unidirectional rotation of the right ring 82; the right ring 82 will squeeze the hydraulic chamber 821 through the right piston 822, and use the hydraulic drive method to make the right ring 82 move slowly, so as to avoid excessive rotation of the right ring 82 due to excessive difference in flow rate between the right ring 82 and the left ring 81. At the same time, the hydraulic chamber 821 can squeeze the oil into the collection bin 823, and use the collected oil volume to accurately measure the deflection angle of the right ring 82, thereby determining the approximate scope of the dam problem.

[0065] The basic principles and beneficial effects of the present invention are shown and described above. At the same time, the present invention is not limited to the above embodiments. Without departing from the effects and scope of the present invention, the present invention may have various changes and improvements. These changes and improvements all fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A rapid detection device for dam dangers based on a vehicle-mounted platform, characterized by: The vehicle comprises a vehicle body (1), a radar detection device (2), a numerical control platform (3), a driving mechanism (4), a traction rope (5), a floating block (6), a measuring mechanism (7), a swivel (8) and a measuring probe (9), wherein the radar detection device (2) is located above the vehicle body (1), the numerical control platform (3) is mounted on the vehicle body (1), the driving mechanism (4) is located above the vehicle body (1), the traction rope (5) is mounted on the driving mechanism (4), and the floating block (6) is connected to the other end of the traction rope (5). The measuring mechanism (7) is installed inside the floating block (6), the rotating ring (8) is located inside the floating block (6), the measuring probe (9) is installed on the rotating ring (8), the driving mechanism (4) drives the floating block (6) to the upstream of the dam through the traction rope (5), the measuring mechanism (7) determines the danger of the dam according to the water flow velocity difference measured by the measuring probe (9), and when the water flow velocity difference is greater than a set value, the measuring mechanism (7) rotates the rotating ring (8) and marks the location of the danger hazard upstream of the dam; The measuring mechanism (7) comprises a water inlet (71), a rotating disk (72), a fixed shaft (73), a rotating shaft (74), a water wheel (75), a clamping block (76), and a protrusion (77). The water inlet (71) is provided on a side of the floating block (6) close to the traction rope (5). The rotating disk (72) is mounted on the floating block (6). A rotating ring (8) is provided inside the rotating disk (72). The rotating ring (8) is divided into a left ring (81) and a right ring (82). The fixed shaft (71) is provided with a rotating ring (81) and a rotating ring (82). 3) is arranged through the left ring (81), the rotating shaft (74) is arranged through the right ring (82), the water wheel (75) is respectively mounted on the fixed shaft (73) and the rotating shaft (74), the water wheel (75) is located in the rotating ring (8), the clamping block (76) is mounted on the rotating shaft (74), the protrusion (77) is mounted on the fixed shaft (73), the protrusion (77) is engaged with the clamping block (76), and the two are separated after the rotating shaft (74) rotates.

2. According to claim 1, a rapid detection device for dangerous conditions and hidden dangers of dams based on a vehicle-mounted platform is characterized by: The driving mechanism (4) comprises a mounting frame (41), a return spring (42), a top block (43), a limit block (44), a hook (45), a torsion spring (46), an electric push rod (47), and a winding roller (48); the mounting frame (41) is located at an edge of the vehicle body (1); the return spring (42) is mounted on the mounting frame (41); the top block (43) is mounted on the other end of the return spring (42); when the return spring (42) is compressed, the top block (43) contacts the floating block (6). The limit block (44) is mounted on the mounting frame (41), the hook (45) is located at the front end of the limit block (44), the hook (45) locks the top block (43) when the return spring (42) is compressed, the torsion spring (46) is mounted between the mounting frame (41) and the limit block (44), the electric push rod (47) is mounted above the limit block (44), the winding roller (48) is mounted on the mounting frame (41), and the traction rope (5) is respectively wound around the two winding rollers (48).

3. According to claim 2, a rapid detection device for dangerous conditions and hidden dangers of dams based on a vehicle-mounted platform is characterized by: The rotating disk (72) has three layers, the rotating ring (8) is located at the top layer, the bottom layer of the rotating disk (72) is a rotating plate (721), and the middle layer of the rotating disk (72) is a flow focusing layer (722).

4. The rapid detection equipment for dangerous conditions and hidden dangers of dams based on a vehicle-mounted platform according to claim 3 is characterized by: The rotating disk (72) is located at the center of the floating block (6), and a counterweight block (723) is installed at the bottom of the rotating plate (721).

5. According to claim 1, a rapid detection equipment for dangerous conditions and hidden dangers of dams based on a vehicle-mounted platform is characterized by: A hydraulic chamber (821) is installed on the right side of the front end of the right ring (82), a right piston (822) is slidably connected in the hydraulic chamber (821), and the rear end of the right piston (822) is connected to the right ring (82).

6. The rapid detection equipment for dam danger and hidden danger based on a vehicle-mounted platform according to claim 4 is characterized by: The rotating plate (721) is provided with a traction ring (7211), the traction rope (5) passes through the traction ring (7211), the traction ring (7211) is initially located away from the hook (45), and when the traction rope (5) is stretched straight, the traction ring (7211) is located at the hook (45).

7. The rapid detection equipment for dam danger and hidden danger based on a vehicle-mounted platform according to claim 5 is characterized by: A collecting bin (823) is installed on one side of the hydraulic chamber (821), and a one-way valve is installed at the connection point between the hydraulic chamber (821) and the collecting bin (823).

8. The rapid detection equipment for dangerous conditions and hidden dangers of dams based on a vehicle-mounted platform according to claim 2 is characterized by: The mounting frame (41) is movably connected to the vehicle body (1), and the mounting frame (41) turns around the vehicle body (1).

9. The rapid detection equipment for dangerous conditions and hidden dangers of dams based on a vehicle-mounted platform according to claim 1 is characterized by: The water inlet (71) is in a funnel shape, and both sides of the floating block (6) are designed to be streamlined.

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