A device for measuring underwater topography in shallow water areas

Abstract

The present invention discloses a device for measuring underwater topography in shallow water areas, comprising a telescopic strut structure with adjustable length, a floating platform structure capable of floating on the water surface, a measuring pyramid and a digital display control panel, wherein one end of the telescopic strut structure is provided with a first lifting rope assembly for connecting with the floating platform structure and capable of lifting and lowering the floating platform structure; the telescopic strut structure is detachably provided with a moving wheel structure for supporting and moving the telescopic strut structure, and the telescopic strut structure is provided with a support frame structure for positioning and supporting the telescopic strut structure. Through the mutual coordination and cooperation among the telescopic strut structure, the floating platform structure, the first lifting rope assembly, the measuring pyramid and the second lifting rope assembly, the adjustment of the detection position on the water surface and the automatic vertical measurement of the water depth of the detection point can be quickly realized, thereby improving both the measurement efficiency and the measurement accuracy.

Description

Technical Field

[0001] The present invention relates to the technical field of water area measurement, and in particular to a device for measuring underwater topography in shallow water areas. Background Art

[0002] Currently, in deep-water areas, surveyors use RTKs to measure the underwater elevation by boat. In shallow river areas, where boats are not allowed, surveyors wear boots and use handheld RTKs to measure. However, in shallow water areas, the bottom of the water is silted deeply and the terrain is complex, which poses a great safety hazard for personnel working in the water.

[0003] A device for measuring underwater topography in shallow water areas with publication number CN221764494U has a measuring rod hole in the center of the top plate of the measuring tripod, the top plate fixing clamp is welded to the lower plate surface of the top plate, the shore-based measuring rod is vertically inserted into the measuring rod hole, the top plate fixing clamp is clamped and connected to the shore-based measuring rod, and the measuring rod is placed vertically in the water.

[0004] However, currently when measuring water areas, the depth is determined by extending and retracting the rod, which makes it inconvenient to control the base point, and the position of the measuring point on the water surface is also inconvenient to change and adjust. Summary of the Invention

[0005] The purpose of the present invention is to provide a device for measuring underwater topography in shallow water areas in order to solve the above problems.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] The present invention provides a device for measuring underwater topography in shallow water areas, comprising a telescopic support structure with adjustable length, a floating platform structure capable of floating on the water surface, a measuring pyramid, and a digital display control panel. A first lifting rope assembly is provided at one end of the telescopic support structure for connecting to the floating platform structure and enabling the floating platform structure to be lifted and lowered.

[0008] The telescopic support rod structure is detachably provided with a moving wheel structure for supporting its movement, the telescopic support rod structure is provided with a support frame structure for positioning and supporting it, and the telescopic support rod structure is provided with a weight balance assembly capable of changing the center of gravity position at one end thereof close to the first lifting rope assembly;

[0009] The floating platform structure is provided with a first lifting rope assembly capable of lifting and lowering the measuring pyramid, and the floating platform structure is provided with a positioning clamping structure capable of clamping and fixing the measuring pyramid.

[0010] Furthermore, the telescopic support rod structure includes a main support rod, a sliding channel is opened in the main support rod, one end of the sliding channel is open and a suspension rod is slidably arranged at the opening, a first electric telescopic rod is fixedly arranged in the sliding channel for driving the suspension rod to slide and move in the sliding channel, a first wheel frame with a U-shaped outer profile is fixedly arranged on the end of the suspension rod passing through the main support rod, a rope support wheel is rotatably arranged on the first wheel frame, and the output end of the digital display control panel is electrically connected to the input end of the first electric telescopic rod.

[0011] Furthermore, the second lifting rope assembly includes a second lifting shell fixedly arranged on the main support pole, a second rope reel is rotatably arranged in the second lifting shell, a second lifting rope is wound around the second rope reel, and the second rope reel is provided with a second motor for driving it to rotate in the second lifting shell. A second rope threading hole for passing the second lifting rope is provided on one side of the second lifting shell, and an annular groove is provided on the outer side of the rope support wheel along its circumferential direction. One end of the second lifting rope passes through the second rope threading hole and around the annular groove in sequence and is connected to more than four hanging ropes. The lower end of the hanging rope is fixedly connected to the floating platform structure, and the output end of the digital display control panel is electrically connected to the input end of the second motor.

[0012] Furthermore, the main support pole is provided with a first rope threading ring for passing the second lifting rope, and the lifting pole is provided with a second rope threading ring for passing the second lifting rope. The outer contours of the first rope threading ring and the second rope threading ring are both ring-shaped and the cross-sectional shape is circular. The end of the second lifting rope is fixedly connected with a first hanging joint, and the upper ends of the hanging ropes are fixedly connected with second hanging joints, and the first hanging joint and the second hanging joint are threadedly connected to each other.

[0013] Furthermore, the floating platform structure includes a floating platform, an annular airbag is provided on the outside of the floating platform, the outside of the floating platform and the inside of the annular airbag are connected to each other by more than six connecting ropes, the outer shape of the floating platform is a truncated cone shape, and an open groove is provided at the center of the floating platform, and the first lifting rope assembly and the positioning clamping structure are respectively arranged in the open groove.

[0014] Furthermore, the first lifting rope assembly includes two parallel support plates, which are fixedly arranged on the floating platform, and a first lifting shell is fixedly arranged between the two support plates. A first rope reel is rotatably arranged in the first lifting shell, and a first lifting rope is wound around the first rope reel. The first rope reel is provided with a first motor for driving it to rotate in the first lifting shell. A first rope hole for passing the first lifting rope is opened on the bottom side of the first lifting shell, and one end of the first lifting rope passes through the first rope hole and is fixedly connected to the measuring pyramid. A torque sensor is provided between one of the ends of the rotation axis of the first rope reel and the inner side of the first lifting shell. A floating plate is provided on the first lifting rope located between the first lifting shell and the measuring pyramid, and a through hole is opened on the floating plate for sliding the first lifting rope through. More than two distance sensors for detecting the distance from the floating plate are provided on the bottom side of the first lifting shell, and the output ends of the torque sensor and the distance sensor are respectively electrically connected to the input end of the digital display control panel, and the output end of the digital display control panel is electrically connected to the input end of the first motor.

[0015] Furthermore, the positioning and clamping structure includes an embedding groove opened on the inner side wall of the open groove, a second electric telescopic rod is fixedly arranged in the embedding groove, the push rod head end of the second electric telescopic rod faces the open groove and is fixedly connected to a clamping plate, the outer contour of the clamping plate is consistent with the outer contour of the measuring pyramid, and the output end of the digital display control panel is electrically connected to the input end of the second electric telescopic rod.

[0016] Furthermore, the weight balancing assembly includes a slide slidably set on the main support rod, and a holding rack with a U-shaped outline is fixedly set on one side of the slide, and a number of weight blocks are detachably set in the holding rack, and more than two hanging rods are fixedly set in the holding rack, and each of the weight blocks is penetrated by a hanging hole for sliding through the hanging rod, and a third electric telescopic rod is fixedly set on the main support rod for driving the slide to slide on the main support rod, and the push rod head end of the third electric telescopic rod is fixedly connected to the holding rack, and the output end of the digital display control panel is electrically connected to the input end of the third electric telescopic rod.

[0017] Furthermore, the support frame structure includes a connecting member, one side of the connecting member is hinged to the main support pole through a hinge seat, and the other side of the connecting member is hinged to one end of two supporting legs through two hinged rotating heads. The other end of each supporting leg is fixed with a nail foot, and a connecting belt is provided between the two supporting legs. The connecting belt is provided with two binding straps for binding the supporting legs to the main support pole.

[0018] Furthermore, the movable wheel structure includes a fixing seat fixedly arranged on the main support rod, a second wheel frame with a U-shaped outer contour is fixedly arranged on the fixing seat by bolts, and a wheel body is rotatably arranged on the second wheel frame.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. Through the coordination and cooperation between the telescopic support structure, floating platform structure, first lifting rope assembly, measuring pyramid and second lifting rope assembly, the detection position on the water surface can be quickly adjusted, and the water depth of the detection point can be automatically measured vertically, which not only improves the measurement efficiency but also improves the measurement accuracy.

[0021] 2. The second lifting rope assembly, combined with the telescopic support structure, enables staff on the shore to drive and move the floating platform structure, as well as switch between floating detection and suspended detection on the water surface;

[0022] 3. The second electric telescopic rod can drive the clamping plate to clamp and fix the measuring pyramid, thereby keeping the measuring pyramid in a stable state and avoiding the problem of random shaking of the measuring pyramid during movement;

[0023] 4. The weight balancing assembly can balance the weight of the floating platform structure, thereby making the operation of the telescopic support structure more labor-saving and convenient when supported by the support frame structure;

[0024] 5. The telescopic support structure can be easily moved on the riverside road through the movable wheel structure thereon. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0026] Figure 2 This invention Figure 1 A schematic diagram of a three-dimensional structure in a first direction;

[0027] Figure 3 This invention Figure 1 A schematic diagram of the partially enlarged structure at point B;

[0028] Figure 4 It is a schematic diagram of the three-dimensional structure of the support frame structure of the present invention;

[0029] Figure 5 This invention Figure 1 A schematic diagram of the partially enlarged structure at point C;

[0030] Figure 6 This invention Figure 2 A schematic diagram of the local enlarged structure at D;

[0031] Figure 7 This invention Figure 1 AA cross-sectional structural diagram;

[0032] Figure 8 This invention Figure 1 A schematic diagram of the second direction structure;

[0033] Figure 9 This invention Figure 8 Schematic diagram of the local enlarged structure at E.

[0034] 1. The locating plate of the embodiment of the present invention is a kind of locating plate, which is used for the lifting of the lifting rope, and a kind of locating plate of the embodiment of the present invention are used as the locating plate of the present invention. The locating plate of the embodiment of the present invention is used as the locating plate of the present invention. The locating plate of the embodiment of the present invention is used as the locating plate of the present invention. Electric telescopic rod; 503, clamping plate; 6, second lifting rope assembly; 601, second lifting shell; 602, second lifting rope; 603, first hanging joint; 604, second hanging joint; 605, hanging rope; 606, second rope reel; 607, second motor; 7, ballast balance assembly; 701, slide; 702, storage rack; 703, ballast block; 704, hanging rod; 705, third electric telescopic rod; 8, support frame structure; 801, articulated seat; 802, connector; 803, articulated swivel head; 804, support leg; 805, connecting belt; 806, nail foot; 807, binding belt; 9, moving wheel structure; 901, second wheel frame; 902, fixed seat; 903, wheel body; 10, digital display control panel; 11, handle. DETAILED DESCRIPTION

[0035] To make the purpose, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention will be described in detail below. Obviously, the embodiments described are only some of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0036] See also Figures 1-9As shown, the present invention provides a device for measuring underwater topography in shallow water areas, including a telescopic strut structure 1 with adjustable length, a floating platform structure 2 capable of floating on the water surface, a measuring pyramid 4 and a digital display control panel 10, one end of the telescopic strut structure 1 is provided with a first lifting rope assembly 3 for connecting with the floating platform structure 2 and capable of lifting and lowering the floating platform structure 2; the telescopic strut structure 1 is detachably provided with a moving wheel structure 9 for supporting and moving it, the telescopic strut structure 1 is provided with a support frame structure 8 for positioning and supporting it, and the telescopic strut structure 1 is provided with a weight balancing assembly 7 capable of changing the center of gravity position near one end of the telescopic strut structure 1 close to the first lifting rope assembly 3; the floating platform structure 2 is provided with a first lifting rope assembly 3 capable of lifting and lowering the measuring pyramid 4, and the floating platform structure 2 is provided with a positioning clamping structure 5 capable of clamping and fixing the measuring pyramid 4.

[0037] See the instructions attached Figure 2 、 Figure 3 and Figure 8 As shown, the telescopic support rod structure 1 includes a main support rod 101 with a round rod shape. A sliding channel is formed in the main support rod 101. One end of the sliding channel is open and a suspension rod 102 is slidably installed in the opening. A first electric telescopic rod 106 is fixedly installed in the sliding channel for driving the suspension rod 102 to slide within the sliding channel. A first wheel frame 104 with a U-shaped outline is fixedly installed at the end of the suspension rod 102 that passes through the main support rod 101. A rope support wheel 105 is rotatably installed on the first wheel frame 104. The output end of the digital display control panel 10 is electrically connected to the input end of the first electric telescopic rod 106. Through the above-mentioned specific structural design, the extension and retraction of the push rod of the first electric telescopic rod 106 can drive the suspension rod 102 to slide within the sliding channel. The rope support wheel 105 pushes the second lifting rope 602 and moves the floating platform structure 2 horizontally, thereby changing the measurement point on the water surface.

[0038] See the instructions attached Figure 2 、 Figure 3 and Figure 7As shown, the second lifting rope assembly 6 includes a second lifting shell 601 fixedly arranged on the main support rod 101, and a handle 11 is provided on the second lifting shell 601 for hand-held operation by the staff. A second rope reel 606 is rotatably arranged in the second lifting shell 601, and a second lifting rope 602 is wound around the second rope reel 606. In actual application, a second rope reel groove is provided on the outer side of the second rope reel 606 along its circumferential direction, and a second motor 607 is provided on the second rope reel 606 for driving it to rotate in the second lifting shell 601. In actual application, the second motor 607 is fixedly arranged at the central axis of the second rope reel 606, and one of the central axis ends of the second rope reel 606 is connected to the second lifting shell 601. The inner sides of the second lifting shell 601 are rotatably connected to each other, and the second motor 607 passes through the other central axis end of the second rope reel 606 and is fixedly connected to the inner side of the second lifting shell 601. A second rope threading hole for passing the second lifting rope 602 is provided on one side of the second lifting shell 601, and an annular groove is provided on the outer side of the rope support wheel 105 along its circumferential direction. The annular groove plays a role in supporting and limiting the direction of the second lifting rope 602. One end of the second lifting rope 602 passes through the second rope threading hole and bypasses the annular groove in turn and is connected to more than four hanging ropes 605. The lower end of the hanging rope 605 is fixedly connected to the floating platform structure 2, and the output end of the digital display control panel 10 is electrically connected to the input end of the second motor 607. Through the above-mentioned specific structural design, the second lifting rope assembly 6 can play a role in stabilizing the lifting of the floating platform structure 2, so that during the lifting and suspension process of the floating platform structure 2, it remains vertically downward under the action of its own gravity, thereby realizing vertical detection of the water depth. In addition, the second lifting rope assembly 6 cooperates with the telescopic strut structure 1 to realize the driven movement of the position of the floating platform structure 2 by the staff on the shore, as well as the conversion between the two detection modes of floating detection and suspension detection on the water surface.

[0039] A first rope threading ring 103 for passing the second lifting rope 602 is provided on the main support pole 101, and a second rope threading ring 107 for passing the second lifting rope 602 is provided on the lifting pole 102. The outer contours of the first rope threading ring 103 and the second rope threading ring 107 are both annular and have a circular cross-sectional shape. The end of the second lifting rope 602 is fixedly connected with the first hanging joint 603, and the upper ends of the hanging ropes 605 are fixedly connected with the second hanging joint 604, and the first hanging joint 603 and the second hanging joint 604 are threadedly connected to each other.

[0040] See the instructions attached Figure 2 、 Figure 7 and Figure 8As shown, the floating platform structure 2 includes a floating platform 201, and an annular airbag 203 is arranged on the outside of the floating platform 201. The outside of the floating platform 201 and the inside of the annular airbag 203 are connected to each other by more than six connecting ropes 202. The outer shape of the floating platform 201 is a truncated cone shape, and an open groove 204 is opened at the center of the floating platform 201. The first lifting rope assembly 3 and the positioning clamping structure 5 are respectively arranged in the open groove 204.

[0041] See the instructions attached Figure 1 、 Figure 5 、 Figure 7 、 Figure 8 and Figure 9As shown, the first lifting rope assembly 3 includes two parallel distributed support plates 301, the support plates 301 are fixedly arranged on the floating platform 201, and a first lifting shell 302 is fixedly arranged between the two support plates 301, and a first rope drum 304 is rotatably arranged in the first lifting shell 302, and a first lifting rope 309 is wound around the first rope drum 304, and a first motor 303 for driving it to rotate in the first lifting shell 302 is provided on the first rope drum 304. In actual application, the first motor 303 is fixedly arranged at the central axis of the first rope drum 304, and one of the central axis ends of the first rope drum 304 is rotatably connected to the inner side of the first lifting shell 302, and a torque sensor 306 is provided at the connection between them. The first motor 303 is rotated from the other central axis of the first rope drum 304. The end passes through and is fixedly connected to the inner side of the first lifting shell 302. A first rope hole 308 for passing the first lifting rope 309 is provided on the bottom side of the first lifting shell 302. One end of the first lifting rope 309 passes through the first rope hole 308 and is fixedly connected to the measuring pyramid 4. A floating plate 305 is provided on the first lifting rope 309 located between the first lifting shell 302 and the measuring pyramid 4. A through hole 310 is provided on the floating plate 305 for sliding the first lifting rope 309. More than two distance sensors 307 for detecting the distance from the floating plate 305 are provided on the bottom side of the first lifting shell 302. The output ends of the torque sensor 306 and the distance sensor 307 are respectively electrically connected to the input end of the digital display control panel 10, and the output end of the digital display control panel 10 is electrically connected to the input end of the first motor 303. In practical applications, the first lifting rope assembly 3 cooperates with the measuring pyramid 4 to detect the water depth, and the torque sensor 306 and the distance sensor 307 cooperate to realize automatic detection of the water depth. Specifically, the first motor 303 drives the first retracting rope drum 304 to rotate to retract and release the first lifting rope 309. In the process, the torque sensor 306 is at a larger value due to the influence of the weight of the measuring pyramid 4 in the suspended state. When the measuring pyramid 4 touches the bottom, the first lifting rope 309 is loose, resulting in a smaller detection value of the torque sensor 306. At this time, the torque sensor 306 transmits the detected electrical signal to the digital display control panel 10, and the digital display control panel 10 controls the first motor 303 to stop rotating. At this time, the distance sensor 307 detects the distance of the floating plate 305 floating on the water surface. When the floating plate 305 falls on the water surface, the distance sensor 307 sets the distance detected at this time as the initial value, and calculates the number of retraction and extension circles of the first retraction rope drum 304 by the first motor 303 after this time point until the measuring pyramid 4 touches the bottom, and obtains the descending distance of the measuring pyramid 4, thereby judging the water depth distance.

[0042] The positioning and clamping structure 5 includes a recessed slot 501 defined within the inner wall of the opening 204. A second electrically operated telescopic rod 502 is fixedly mounted within the recessed slot 501. The push rod tip of the second electrically operated telescopic rod 502 faces the opening 204 and is fixedly connected to a clamping plate 503. The outer contour of the clamping plate 503 matches the outer contour of the measuring pyramid 4. The output of the digital display control panel 10 is electrically connected to the input of the second electrically operated telescopic rod 502. To prevent the measuring pyramid 4 from remaining suspended in mid-air and causing it to sway during movement, the second electrically operated telescopic rod 502 drives the clamping plate 503 to clamp and secure the measuring pyramid 4, thereby maintaining a stable state.

[0043] See the instructions attached Figure 2 and Figure 6 As shown, the ballast balance assembly 7 includes a slide 701 slidably set on the main support rod 101, and a U-shaped storage rack 702 is fixedly set on one side of the slide 701. A number of ballast blocks 703 are detachably set in the storage rack 702, and more than two hanging rods 704 are fixedly set in the storage rack 702. Each ballast block 703 is penetrated by a hanging hole for sliding through the hanging rod 704. A third electric telescopic rod 705 for driving the slide 701 to slide on the main support rod 101 is fixedly set on the main support rod 101. The push rod head end of the third electric telescopic rod 705 is fixedly connected to the storage rack 702, and the output end of the digital display control panel 10 is electrically connected to the input end of the third electric telescopic rod 705.

[0044] The support frame structure 8 includes a connecting member 802, one side of the connecting member 802 is hinged to the main support pole 101 through a hinge seat 801, and the other side of the connecting member 802 is hingedly connected to one end of two supporting legs 804 through two hinged rotating heads 803. The other end of each supporting leg 804 is fixed with a nail foot 806, and a connecting belt 805 is provided between the two supporting legs 804. Two binding straps 807 for binding the supporting legs 804 to the main support pole 101 are provided on the connecting belt 805.

[0045] The movable wheel structure 9 includes a fixing seat 902 fixedly mounted on the main support rod 101 , a second wheel frame 901 with a U-shaped outline is fixedly mounted on the fixing seat 902 by bolts, and a wheel body 903 is rotatably mounted on the second wheel frame 901 .

[0046] When in use, the telescopic support structure 1 is moved on the riverside road by the moving wheel structure 9 thereon. When it reaches the position to be detected, it stops moving, unties the binding belt 807, and separates the support leg 804 from the main support pole 101 by hinged rotation through the hinge seat 801. Then, the two support legs 804 are separated by the hinged head 803 until the connecting belt 805 is in a straight state. Then, the nail foot 806 is inserted into the ground for fixing. The floating platform structure 2 is hung on the second hanging joint 603 and the second hanging joint 604 are screwed together. On the lifting rope 602, the push rod of the first electric telescopic rod 106 is extended, thereby driving the hoisting rod 102 to extend outward, lifting the floating platform structure 2 above the water surface. In order to balance the weight of the floating platform structure 2 and make the operation of the telescopic support rod structure 1 more labor-saving, the third electric telescopic rod 705 of the weight balancing assembly 7 drives the weight block 703 to move axially along the main support rod 101, and the moving direction is toward the side away from the floating platform structure 2. When the floating platform structure 2 moves to the monitoring point, the second lifting rope assembly 6 lowers the floating platform structure 2 and drops it to the water surface. When the water is calm, the measuring pyramid 4 can be dropped directly by the first lifting rope assembly 3 for detection. Specifically, the first motor 303 drives the first retracting rope drum 304 to rotate. During the process of releasing the first lifting rope 309, the torque sensor 306 is at a larger value due to the weight of the measuring pyramid 4. When the measuring pyramid 4 touches the bottom, the first lifting rope 309 loosens, causing the torque sensor 306 to detect a smaller value. At this time, the torque sensor 306 transmits the detected electrical signal to the digital display control panel 10, which is controlled by the digital display. The panel 10 controls the first motor 303 to stop rotating. At this time, the distance sensor 307 detects the distance of the floating plate 305 floating on the water surface. When the floating plate 305 falls on the water surface, the distance detected by the distance sensor 307 is a certain value. The number of retraction and extension turns of the first retraction rope drum 304 by the first motor 303 from this time point until the measuring pyramid 4 touches the bottom is calculated to obtain the descending distance of the measuring pyramid 4, thereby determining the water depth. Then, the floating platform structure 2 is driven by the telescopic support rod structure 1 to move to the next measuring point on the water surface.

[0047] When the water surface is not calm, the measurement may be inaccurate due to the fluctuation of waves. The second lifting rope assembly 6 can be used to lift the floating platform structure 2 so that the floating platform structure 2 is separated from the water surface by a certain distance, and then the above-mentioned depth sounding method can be used for measurement.

Claims

1. A device for measuring underwater topography in shallow water areas, characterized by: The invention comprises a telescopic support rod structure (1) with adjustable length, a floating platform structure (2) capable of floating on the water surface, a measuring pyramid (4) and a digital display control panel (10); one end of the telescopic support rod structure (1) is provided with a second lifting rope assembly (6) for connecting with the floating platform structure (2) and enabling the floating platform structure (2) to be lifted and lowered; The telescopic support rod structure (1) is detachably provided with a moving wheel structure (9) for supporting its movement, the telescopic support rod structure (1) is provided with a support frame structure (8) for positioning and supporting it, and the telescopic support rod structure (1) is provided with a weight balancing assembly (7) capable of changing the center of gravity position at one end thereof close to the first lifting rope assembly (3); The floating platform structure (2) is provided with a first lifting rope assembly (3) capable of lifting and lowering the measuring pyramid (4), and the floating platform structure (2) is provided with a positioning clamping structure (5) capable of clamping and fixing the measuring pyramid (4).

2. The device for measuring underwater topography in shallow water areas according to claim 1, characterized in that: The telescopic support rod structure (1) comprises a main support rod (101), a sliding channel is provided in the main support rod (101), one end of the sliding channel is open and a suspension rod (102) is slidably provided at the opening, a first electric telescopic rod (106) is fixedly provided in the sliding channel for driving the suspension rod (102) to slide and move in the sliding channel, a first wheel frame (104) with a U-shaped outline is fixedly provided at one end of the suspension rod (102) passing through the main support rod (101), a rope support wheel (105) is rotatably provided on the first wheel frame (104), and an output end of the digital display control panel (10) is electrically connected to an input end of the first electric telescopic rod (106).

3. The device for measuring underwater topography in shallow water areas according to claim 2, characterized in that: The second lifting rope assembly (6) includes a second lifting shell (601) fixedly arranged on the main support rod (101), a second rope reel (606) is rotatably arranged in the second lifting shell (601), a second lifting rope (602) is wound around the second rope reel (606), and a second motor (607) is provided on the second rope reel (606) for driving it to rotate in the second lifting shell (601), a second rope threading hole for passing the second lifting rope (602) is provided on one side of the second lifting shell (601), an annular groove is provided on the outer side of the rope support wheel (105) along its circumferential direction, one end of the second lifting rope (602) passes through the second rope threading hole and around the annular groove in sequence and is connected to more than four hanging ropes (605), the lower end of the hanging rope (605) is fixedly connected to the floating platform structure (2), and the output end of the digital display control panel (10) is electrically connected to the input end of the second motor (607).

4. The device for measuring underwater topography in shallow water areas according to claim 3, characterized in that: The main support rod (101) is provided with a first rope threading ring (103) for passing the second lifting rope (602), and the lifting rod (102) is provided with a second rope threading ring (107) for passing the second lifting rope (602). The outer contours of the first rope threading ring (103) and the second rope threading ring (107) are both annular and have a circular cross-sectional shape. The end of the second lifting rope (602) is fixedly connected with a first hanging joint (603), and the upper ends of the hanging ropes (605) are fixedly connected with a second hanging joint (604), and the first hanging joint (603) and the second hanging joint (604) are threadedly connected to each other.

5. The device for measuring underwater topography in shallow water areas according to claim 1, characterized in that: The floating platform structure (2) includes a floating platform (201), an annular airbag (203) is provided on the outer side of the floating platform (201), the outer side of the floating platform (201) and the inner side of the annular airbag (203) are connected to each other through more than six connecting ropes (202), the outer shape of the floating platform (201) is a truncated cone, and an open groove (204) is provided at the center of the floating platform (201), and the first lifting rope assembly (3) and the positioning clamping structure (5) are respectively arranged in the open groove (204).

6. The device for measuring underwater topography in shallow water areas according to claim 5, characterized in that: The first lifting rope assembly (3) includes two support plates (301) distributed in parallel, the support plates (301) are fixedly arranged on the floating platform (201), and a first lifting shell (302) is fixedly arranged between the two support plates (301), a first rope reel (304) is rotatably arranged in the first lifting shell (302), a first lifting rope (309) is wound around the first rope reel (304), and a first motor (303) is provided on the first rope reel (304) for driving it to rotate in the first lifting shell (302), a first rope hole (308) for passing the first lifting rope (309) is provided on the bottom side of the first lifting shell (302), one end of the first lifting rope (309) passes through the first rope hole (308) and is fixedly connected to the measuring pyramid (4) A torque sensor (306) is provided between one of the ends of the rotation axis of the first retractable rope drum (304) and the inner side of the first lifting shell (302); a floating disk (305) is provided on the first lifting rope (309) between the first lifting shell (302) and the measuring pyramid (4); a through hole (310) is provided on the floating disk (305) for sliding through the first lifting rope (309); two or more distance sensors (307) for detecting the distance from the floating disk (305) are provided on the bottom side of the first lifting shell (302); the output ends of the torque sensor (306) and the distance sensor (307) are respectively electrically connected to the input end of the digital display control panel (10); and the output end of the digital display control panel (10) is electrically connected to the input end of the first motor (303).

7. The device for measuring underwater topography in shallow water areas according to claim 5, characterized in that: The positioning clamping structure (5) comprises an embedding groove (501) provided on the inner side wall of the opening groove (204); a second electric telescopic rod (502) is fixedly arranged in the embedding groove (501); a push rod head end of the second electric telescopic rod (502) faces the opening groove (204) and is fixedly connected to a clamping plate (503); the outer contour of the clamping plate (503) is consistent with the outer contour of the measuring pyramid (4); and the output end of the digital display control panel (10) is electrically connected to the input end of the second electric telescopic rod (502).

8. The device for measuring underwater topography in shallow water areas according to claim 2, characterized in that: The weight balancing assembly (7) includes a slide (701) slidably arranged on the main support rod (101), a U-shaped storage rack (702) is fixedly arranged on one side of the slide (701), and a plurality of weight blocks (703) are detachably arranged in the storage rack (702), and two or more hanging rods (704) are fixedly arranged in the storage rack (702), and each weight block (703) is penetrated by a hanging hole for sliding through the hanging rod (704), and a third electric telescopic rod (705) is fixedly arranged on the main support rod (101) for driving the slide (701) to slide on the main support rod (101), and the push rod head end of the third electric telescopic rod (705) is fixedly connected to the storage rack (702), and the output end of the digital display control panel (10) is electrically connected to the input end of the third electric telescopic rod (705).

9. The device for measuring underwater topography in shallow water areas according to claim 2, characterized in that: The support frame structure (8) includes a connecting member (802), one side of the connecting member (802) is hinged to the main support pole (101) through a hinge seat (801), and the other side of the connecting member (802) is hinged to one end of two supporting legs (804) through two hinged rotating heads (803), and the other end of each supporting leg (804) is fixedly provided with a nail foot (806), and a connecting belt (805) is provided between the two supporting legs (804), and the connecting belt (805) is provided with two binding belts (807) for binding the supporting legs (804) to the main support pole (101).

10. The device for measuring underwater topography in shallow water areas according to claim 2, characterized in that: The movable wheel structure (9) comprises a fixed seat (902) fixedly arranged on the main support rod (101); a second wheel frame (901) having a U-shaped outer profile is fixedly arranged on the fixed seat (902) by bolts; and a wheel body (903) is rotatably arranged on the second wheel frame (901).

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