River terrain detection device for land surveying and mapping

Abstract

The invention relates to the technical field of surveying and mapping devices, and discloses a river terrain detection device for land surveying and mapping, the river terrain detection device comprises a pull frame assembly, separate measurement assemblies, a floating seat and a bottom measurement assembly, the pull frame assembly is fixedly connected to the top of the floating seat, a plurality of separate measurement assemblies are annularly and uniformly arranged on the top of the floating seat, and the separate measurement assemblies are connected with the pull frame assembly through pull ropes; the bottom measuring assembly is connected with the bottom of the floating seat through a pull rope. Each separate measuring assembly comprises a machine body, pull buckles, a power rotating seat, rotating seat telescopic rods, a power rotating shaft and a clamping seat, the pull buckles are symmetrically and fixedly connected to the top of the machine body, the power rotating seat is slidably connected with the side edge of the machine body, the rotating seat telescopic rods are installed on the two sides of the machine body, and the telescopic ends of the rotating seat telescopic rods are connected with the power rotating seat; the power rotating shaft is rotationally connected with the power rotating seat, the clamping seat is installed on the power rotating shaft, and the problems that in the prior art, the center depth of a river is difficult to measure, and crossing measurement is difficult to conduct on the river in a traditional method are solved.

Description

Technical Field

[0001] This patent application relates to the technical field of surveying and mapping devices, and specifically, to a river ditch terrain detection device for land surveying and mapping. Background Art

[0002] The Chinese patent with the publication number CN118323973B discloses a river ditch depth measuring device for land surveying, including a measurement and control device and a transducer body, the transducer body is electrically connected with a connecting cable, the connecting cable is provided with a connecting plug, the measurement and control device is provided with a connecting socket adapted to the connecting plug, and also includes a mounting frame, a sealing box, a conical cylinder and a rotating winding assembly, both sides of the mounting frame are provided with mounting chambers, the sealing box is arranged at the bottom of the measurement and control device, the conical cylinder is arranged in the middle of the mounting frame, the connecting cable passes through the conical cylinder, and a rotating winding assembly is arranged between the sealing box and the conical cylinder. Through the above technical scheme, the problems of ultrasonic transducer displacement due to the fluidity of the river and cable damage during use in the prior art ultrasonic depth sounder are solved.

[0003] A Chinese patent with publication number CN117433495A discloses a river ditch depth measuring instrument for land surveying, including a hull, a moving mechanism is arranged in the hull, a center console is arranged in the hull, a rudder is arranged on the lower side of the center console, two fixing mechanisms are arranged in the hull, the fixing mechanisms are located at both ends of the hull, a measuring mechanism is arranged in the hull, a speed regulating box is arranged in the hull, an output shaft is arranged on the speed regulating box, the output shaft and the measuring mechanism are connected in driving connection, a guide mechanism is arranged on the lower side of the hull, the guide mechanism and the speed regulating box are connected in driving connection, the measuring mechanism is located inside the guide mechanism, a driving mechanism is arranged in the hull, the driving mechanism is movably connected to the moving mechanism, the fixing mechanism and the measuring mechanism respectively, a baffle is fixedly connected to the hull, and a receiver is arranged on the baffle, which effectively improves the test accuracy of the equipment, makes the equipment more convenient during testing, and reduces the disadvantages of equipment testing.

[0004] However, it is difficult to measure the center depth of the ditch and to conduct cross-ditch measurements using traditional methods. Summary of the invention

[0005] The purpose of the present application is to provide a ditch terrain detection device for land surveying and mapping, aiming to solve the problem in the prior art that it is difficult to measure the center depth of the ditch and difficult to measure the cross-ditch in the traditional method.

[0006] The present application is implemented as follows: a river ditch terrain detection device for land surveying and mapping includes a pulling frame assembly, a sub-measurement assembly, a floating seat and a bottom measurement assembly. The pulling frame assembly is fixedly connected to the top of the floating seat, and a plurality of the sub-measurement assemblies are arranged in a ring on the top of the floating seat. The sub-measurement assemblies are connected to the pulling frame assembly by a pull rope, and the bottom measurement assembly is connected to the bottom of the floating seat by a pull rope.

[0007] The sub-measurement assembly includes a body, a buckle, a power swivel seat, a swivel seat telescopic rod, a power shaft and a clamping seat. The buckle is symmetrically fixed to the top of the body, the power swivel seat is slidably connected to the side of the body, the swivel seat telescopic rod is installed on both sides of the body, the telescopic end of the swivel seat telescopic rod is connected to the power swivel seat, the power shaft is rotatably connected to the power swivel seat, and the clamping seat is installed on the power shaft.

[0008] The sub-measurement assembly also includes a power cylinder, a power telescopic rod, a power rotating sleeve, a power support block, a power rotary machine and a power fan. The power cylinder is clamped on a clamping seat, the power telescopic rod is slidingly connected to the power cylinder, the power rotating sleeve is installed on the top of the power support block, the power telescopic rod is coaxially rotatably connected to the power rotating sleeve, the power rotary machine is installed on one side of the power support block, and the power fan is driven to rotate by the power rotary machine.

[0009] The sub-measurement assembly also includes a sensing float, a sensing sleeve rod, a sensing spring and a sensing support plate. The sensing float is distributed at four corners at the bottom of the body, the sensing sleeve rod is placed at the bottom of the sensing float, the sensing support plate is slidably connected to the middle of the sensing sleeve rod, and the sensing spring is installed between the sensing float and the sensing support plate.

[0010] The sub-detection assembly includes a multi-stage detection rod, a detection block and a detection head. The multi-stage detection rod is installed at the bottom of the body, the detection block is detachably connected to the bottom of the multi-stage detection rod, and the detection head is installed at the bottom and side of the detection block.

[0011] A detachable sampling device is installed at the bottom of the induction support plate.

[0012] The sampling device comprises a sampling frame, a sampling running wheel, a sampling hinge rod, a sampling rotating drum and a sampling scraper. The sampling running wheels are installed on both sides of the sampling frame, rotatable sampling hinge rods are installed at both ends of the sampling frame, a sampling rotating drum is installed at one end of the sampling hinge rod away from the sampling frame, and a plurality of sampling scrapers evenly spaced are installed on the outer wall of the sampling rotating drum.

[0013] The frame assembly includes a frame bracket, a frame slider and a frame drum. The frame bracket is fixed to the top of the floating seat, the frame slider is slidably connected to the middle of the frame bracket, the frame drum is rotatably connected to the middle of the frame slider, and the pull rope is connected to the frame drum.

[0014] The bottom measuring assembly includes a bottom measuring buoy, a bottom measuring power paddle, a bottom probe, a water supply and drainage pipe and a bottom measuring bracket. The bottom measuring buoy is placed on the top of the bottom measuring bracket, the bottom measuring power paddle is rotatably installed in the middle of the bottom measuring bracket, the water supply and drainage pipe is connected to the middle of the bottom measuring buoy, and the bottom probe is installed at the bottom of the bottom measuring bracket.

[0015] The water supply and drainage pipe controls the filling and emptying of water in the bottom measuring buoy. The bottom measuring bracket and the bottom of the floating seat are both provided with sensing probes, which keep the same position after the bottom measuring component sinks to the bottom.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] This design enables the entire detection device to adapt to different river ditch terrains. With the pull-frame assembly fixed to the top of the floating seat, the sub-measurement assembly arranged in a ring, and the bottom measurement assembly connected to the bottom of the floating seat, the entire device can be stably deployed in the ditch, improving the stability and accuracy of the measurement. This design also allows the center depth of the ditch to be accurately measured, solving the problem of difficulty in measuring the center depth of the ditch in traditional methods.

[0018] The sub-measurement assembly also includes a power cylinder, a power telescopic rod, a power rotating sleeve, a power support block, a power rotor and a power fan. The power cylinder is clamped on a clamping seat, the power telescopic rod is slidingly connected to the power cylinder, the power rotating sleeve is installed on the top of the power support block, the power telescopic rod is coaxially rotatably connected to the power rotating sleeve, the power rotor is installed on one side of the power support block, and the power fan is driven to rotate by the power rotor.

[0019] The design of connecting the sub-measurement assembly to the pull-frame assembly through a pull rope allows the sub-measurement assembly to move freely in the ditch while maintaining linkage with the pull-frame assembly, so that flexible measurements can be made under different water depths and terrain conditions, enhancing the adaptability and flexibility of the measurement. This connection method also facilitates the control of the stability of the hull and improves the safety and reliability of the measurement process. The sub-measurement assembly contains multiple power and sensing components. This design enables the sub-measurement assembly to perform complex operations, such as power extension, rotation, and clamping. These functions enable the sub-measurement assembly to adapt to the changing ditch environment and achieve accurate terrain detection. This design improves the accuracy and efficiency of the measurement, especially in complex ditch terrain. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of a river ditch terrain detection device for land surveying and mapping in the present application;

[0021] Figure 2 This is a structural schematic diagram of a pulling frame assembly in a river ditch terrain detection device for land surveying and mapping in the present application;

[0022] Figure 3This is a schematic diagram of the structure of a sub-measurement component in a river ditch terrain detection device for land surveying and mapping in the present application;

[0023] Figure 4 This is a schematic diagram of the structure of a bottom measuring component in a river ditch terrain detection device for land surveying and mapping in the present application;

[0024] Figure 5 It is a structural schematic diagram of a sampling device in a river ditch terrain detection device for land surveying and mapping of the present application;

[0025] Reference numerals:

[0026] 1. Pulling frame assembly; 2. Sub-measurement assembly; 3. Floating seat; 4. Bottom measurement assembly; 5. Pulling frame bracket; 6. Pulling frame slider; 7. Pulling frame drum; 8. Pull rope; 9. Machine body; 10. Pull buckle; 11. Power rotating seat; 12. Power rotating shaft; 13. Clamping seat; 14. Power cylinder; 15. Power telescopic rod; 16. Power rotating sleeve; 17. Power support block; 18. Power transfer machine; 19. Power fan; 20. Induction float; 2 1. Induction sleeve rod; 22. Induction spring; 23. Induction support plate; 24. Multi-stage detection rod; 25. Detection block; 26. Detection head; 27. Bottom measurement float; 28. Bottom measurement power paddle; 29. ​​Bottom probe; 30. Water supply and drainage pipe; 31. Bottom measurement bracket; 32. Sampling rack; 33. Sampling walking wheel; 34. Sampling hinge rod; 35. Sampling drum; 36. Rotating seat telescopic rod; 37. Sampling device; 38. Sampling scraper. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0028] The implementation of the present application is described in detail below in conjunction with specific embodiments.

[0029] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of this application, it should be understood that if the terms "upper", "lower", "left", "right", etc. indicate an orientation or position relationship based on the orientation or position relationship shown in the drawings, it is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0030] like Figure 1-5As shown, the present application provides a river ditch terrain detection device for land surveying, including a pulling frame assembly 1, a sub-measurement assembly 2, a floating seat 3 and a bottom measurement assembly 4. The pulling frame assembly 1 is fixedly connected to the top of the floating seat 3, and multiple sub-measurement assemblies 2 are arranged in a ring on the top of the floating seat 3. The sub-measurement assemblies 2 are connected to the pulling frame assembly 1 by a pull rope 8, and the bottom measurement assembly 4 is connected to the bottom of the floating seat 3 by the pull rope 8.

[0031] This design enables the entire detection device to adapt to different river ditch terrains. With the pull frame assembly 1 fixed to the top of the floating seat 3, the sub-measurement assembly 2 arranged in a ring, and the bottom measurement assembly 4 connected to the bottom of the floating seat 3, the entire device can be stably deployed in the ditch, improving the stability and accuracy of the measurement. This design also allows the center depth of the ditch to be accurately measured, solving the problem of difficulty in measuring the center depth of the ditch in traditional methods.

[0032] The sub-measurement component 2 includes a body 9, a buckle 10, a power swivel seat 11, a swivel seat telescopic rod 36, a power shaft 12 and a clamping seat 13. The buckle 10 is symmetrically fixed to the top of the body 9, the power swivel seat 11 is slidably connected to the side of the body 9, the swivel seat telescopic rod 36 is installed on both sides of the body 9, the telescopic end of the swivel seat telescopic rod 36 is connected to the power swivel seat 11, the power shaft 12 is rotatably connected to the power swivel seat 11, and the clamping seat 13 is installed on the power shaft 12.

[0033] The sub-measurement component 2 also includes a power cylinder 14, a power telescopic rod 15, a power rotating sleeve 16, a power support block 17, a power rotary machine 18 and a power fan 19. The power cylinder 14 is clamped on the clamping seat 13, the power telescopic rod 15 is slidingly connected to the power cylinder 14, the power rotary sleeve 16 is installed on the top of the power support block 17, the power telescopic rod 15 is coaxially rotatably connected to the power rotary sleeve 16, the power rotary machine 18 is installed on one side of the power support block 17, and the power fan 19 is driven to rotate by the power rotary machine 18.

[0034] The design that the sub-measurement component 2 is connected to the pull frame component 1 through the pull rope 8 allows the sub-measurement component 2 to move freely in the ditch while maintaining the linkage with the pull frame component 1 and the sub-measurement component 2, so that flexible measurements can be performed under different water depths and terrain conditions, enhancing the adaptability and flexibility of the measurement. This connection method also facilitates the control of the stability of the hull and improves the safety and reliability during the measurement process. The sub-measurement component 2 contains multiple power and sensing components. This design enables the sub-measurement component 2 to perform complex operations, such as power extension, rotation and clamping. These functions enable the sub-measurement component 2 to adapt to the changing ditch environment and achieve accurate terrain detection. This design improves the accuracy and efficiency of the measurement, especially in complex ditch terrain.

[0035] The sub-measurement component 2 also includes a sensing float 20, a sensing rod 21, a sensing spring 22 and a sensing support plate 23. The sensing float 20 is distributed at four corners at the bottom of the body 9, the sensing rod 21 is placed at the bottom of the sensing float 20, the sensing support plate 23 is slidably connected to the middle of the sensing rod 21, and the sensing spring 22 is installed between the sensing float 20 and the sensing support plate 23.

[0036] The configuration of these sensing components enables the sub-measurement assembly 2 to sense changes in the bottom of the ditch, and through the sliding connection of the sensing support plate 23 and the elasticity of the sensing spring 22, it can accurately detect the terrain at the bottom of the ditch, thereby improving the sensitivity and accuracy of the detection. This configuration helps to improve the reliability of the measurement results, especially when the terrain at the bottom of the ditch is complex.

[0037] The sub-detection component 2 includes a multi-stage detection rod 24, a detection block 25 and a detection head 26. The multi-stage detection rod 24 is installed at the bottom of the body 9, the detection block 25 is detachably connected to the bottom of the multi-stage detection rod 24, and the detection head 26 is installed at the bottom and side of the detection block 25.

[0038] This multi-stage design allows the multi-stage detection rod 24 to be extended and retracted according to different water depths. The configuration of the detection block 25 and the detection head 26 makes the detection more accurate, and can obtain detailed topographic data of the bottom of the river ditch, enhancing the depth and details of the detection. This design helps to improve the accuracy and efficiency of the measurement, especially in the measurement of deep water areas.

[0039] A detachable sampling device 37 is installed at the bottom of the induction support plate 23 .

[0040] The sampling device 37 includes a sampling frame 32, sampling running wheels 33, a sampling hinge rod 34, a sampling drum 35 and a sampling scraper 38. The sampling running wheels 33 are installed on both sides of the sampling frame 32, and rotatable sampling hinge rods 34 are installed at both ends of the sampling frame 32. The sampling drum 35 is installed at one end of the sampling hinge rod 34 away from the sampling frame 32, and a plurality of sampling scrapers 38 evenly spaced are installed on the outer wall of the sampling drum 35.

[0041] The sampling device 37 includes a sampling frame 32, a sampling wheel 33, a sampling hinge rod 34, a sampling drum 35 and a sampling scraper 38. This design enables the sampling device 37 to effectively collect samples at the bottom of the ditch, thereby improving the efficiency and quality of sample collection. This design helps to improve the efficiency and accuracy of sample collection, especially when the terrain at the bottom of the ditch is complex.

[0042] The pull frame assembly 1 includes a pull frame bracket 5, a pull frame slider 6 and a pull frame drum 7. The pull frame bracket 5 is fixed to the top of the floating seat 3, the pull frame slider 6 is slidably connected to the middle of the pull frame bracket 5, the pull frame drum 7 is rotatably connected to the middle of the pull frame slider 6, and the pull rope 8 is connected to the pull frame drum 7. The sliding and rotating connection design of the pull frame assembly 1 enables the pull frame assembly 1 to flexibly adjust the position and angle to adapt to different measurement requirements, thereby improving the flexibility and efficiency of the measurement. This design helps to improve the flexibility and efficiency of the measurement, especially when it is necessary to adjust the measurement angle and position. The bottom measurement assembly 4 includes a bottom measurement buoy 27, a bottom measurement power paddle 28, a bottom probe 29, a water supply and drainage pipe 30 and a bottom measurement bracket 31. The bottom measurement buoy 27 is placed on the top of the bottom measurement bracket 31, the bottom measurement power paddle 28 can be rotatably installed in the middle of the bottom measurement bracket 31, the water supply and drainage pipe 30 is connected to the middle of the bottom measurement buoy 27, and the bottom probe 29 is installed at the bottom of the bottom measurement bracket 31.

[0043] This configuration of the bottom measuring assembly 4 enables the bottom measuring assembly 4 to be stably deployed at the bottom of the ditch and perform effective terrain detection. The configuration of the bottom measuring power paddle 28 also allows the bottom measuring assembly 4 to move in the ditch, thereby improving the coverage and efficiency of detection. This configuration helps to improve the coverage and efficiency of measurement, especially when the terrain at the bottom of the ditch is complex.

[0044] The water supply and drainage pipe 30 controls the filling and emptying of the water volume of the bottom measuring buoy 27. The bottom measuring bracket 31 and the bottom of the floating seat 3 are both provided with sensing probes, which keep the same position after the bottom measuring component 4 sinks to the bottom.

[0045] This design enables the bottom measuring float 27 to adjust the buoyancy as needed to maintain stability at the bottom of the ditch, and at the same time maintains a consistent position after the bottom measuring assembly 4 sinks to the bottom, thereby improving the stability and accuracy of detection. This design helps to improve the stability and accuracy of measurement, especially when the terrain at the bottom of the ditch is complex.

[0046] Here’s how this application works:

[0047] Overall structure and deployment:

[0048] The detection device is composed of a pull frame assembly 1, a sub-measurement assembly 2, a floating seat 3 and a bottom measurement assembly 4, forming a complete detection system. The pull frame assembly 1 is fixed on the top of the floating seat 3 as the supporting structure of the entire device. The sub-measurement assembly 2 is arranged in a ring on the top of the floating seat 3 and is connected to the pull frame assembly 1 by a pull rope 8 to achieve position adjustment and fixation of the sub-measurement assembly 2. The bottom measurement assembly 4 is connected to the bottom of the floating seat 3 by a pull rope 8 and is used to detect the terrain at the bottom of the ditch.

[0049] Working principle of sub-test component 2:

[0050] The sub-measurement assembly 2 includes a body 9, a buckle 10, a power swivel seat 11, a swivel telescopic rod 36, a power shaft 12 and a clamping seat 13. The power swivel seat 11 is slidably connected to the side of the body 9, and the swivel telescopic rod 36 is installed on both sides of the body 9, and the telescopic end is connected to the power swivel seat 11 to achieve the telescopic movement of the sub-measurement assembly 2. The power shaft 12 is rotatably connected to the power swivel seat 11, and the clamping seat 13 is installed on the power shaft 12 for clamping and fixing the detection equipment.

[0051] Power and Sensing Systems:

[0052] The sub-measurement assembly 2 also includes a power cylinder 14, a power telescopic rod 15, a power rotating sleeve 16, a power support block 17, a power rotary machine 18 and a power fan 19. The power cylinder 14 is clamped on the clamping seat 13, and the power telescopic rod 15 is slidably connected with the power cylinder 14 to achieve power transmission and extension. The power rotary sleeve 16 is installed on the top of the power support block 17, and the power telescopic rod 15 is coaxially rotatably connected with the power rotary sleeve 16 to achieve rotation. The power rotary machine 18 is installed on one side of the power support block 17, and the power fan 19 is driven to rotate by the power rotary machine 18 to generate propulsion in the water.

[0053] Sensing and detection systems:

[0054] The sub-measurement assembly 2 also includes a sensing float 20, a sensing rod 21, a sensing spring 22 and a sensing support plate 23. The sensing float 20 is arranged at the bottom of the body 9 in a four-corner distribution, the sensing rod 21 is arranged at the bottom of the sensing float 20, the sensing support plate 23 is slidably connected to the middle of the sensing rod 21, and the sensing spring 22 is installed between the sensing float 20 and the sensing support plate 23 to sense changes in the bottom of the ditch.

[0055] Working principle of sampling device 37:

[0056] The sampling device 37 includes a sampling frame 32, a sampling wheel 33, a sampling hinge 34, a sampling drum 35 and a sampling scraper 38. The sampling wheels 33 are installed on both sides of the sampling frame 32, the rotatable sampling hinges 34 are installed at both ends of the sampling frame 32, the sampling drum 35 is installed at one end of the sampling hinge 34 away from the sampling frame 32, and a plurality of sampling scrapers 38 evenly spaced are installed on the outer wall of the sampling drum 35 for collecting samples at the bottom of the ditch.

[0057] Working principles of the pull-frame assembly 1 and the bottom measuring assembly 4:

[0058] The pull frame assembly 1 includes a pull frame bracket 5, a pull frame slider 6 and a pull frame drum 7. The pull frame bracket 5 is fixedly connected to the top of the floating seat 3. The pull frame slider 6 is slidably connected to the middle of the pull frame bracket 5. The pull frame drum 7 is rotatably connected to the middle of the pull frame slider 6. The pull rope 8 is connected to the pull frame drum 7 for adjusting the position of the sub-measurement assembly 2. The bottom measurement assembly 4 includes a bottom measurement buoy 27, a bottom measurement power paddle 28, a bottom probe 29, a water supply and drainage pipe 30 and a bottom measurement bracket 31. The bottom measurement buoy 27 is placed on the top of the bottom measurement bracket 31. The bottom measurement power paddle 28 can be rotatably installed in the middle of the bottom measurement bracket 31. The water supply and drainage pipe 30 is connected to the middle of the bottom measurement buoy 27. The bottom probe 29 is installed at the bottom of the bottom measurement bracket 31 for detecting the terrain at the bottom of the ditch.

[0059] Control principle of water supply and drainage pipe 30:

[0060] The water supply and drainage pipe 30 controls the filling and emptying of the water in the bottom float 27 to adjust the buoyancy of the bottom float 27 and maintain the stability of the bottom assembly 4 at the bottom of the ditch.

[0061] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A river ditch terrain detection device for land surveying and mapping, characterized in that: The invention comprises a pulling frame assembly (1), a sub-measurement assembly (2), a floating seat (3) and a bottom measurement assembly (4); the pulling frame assembly (1) is fixedly connected to the top of the floating seat (3); a plurality of sub-measurement assemblies (2) are arranged in a ring shape on the top of the floating seat (3); the sub-measurement assemblies (2) are connected to the pulling frame assembly (1) via a pull rope (8); and the bottom measurement assembly (4) is connected to the bottom of the floating seat (3) via a pull rope (8).

2. A ditch terrain detection device for land surveying and mapping according to claim 1, characterized in that: The sub-measurement component (2) comprises a machine body (9), a buckle (10), a power swivel seat (11), a swivel seat telescopic rod (36), a power shaft (12) and a clamping seat (13); the buckle (10) is symmetrically fixed to the top of the machine body (9); the power swivel seat (11) is slidably connected to the side of the machine body (9); the swivel seat telescopic rod (36) is installed on both sides of the machine body (9); the telescopic end of the swivel seat telescopic rod (36) is connected to the power swivel seat (11); the power shaft (12) is rotatably connected to the power swivel seat (11); and the clamping seat (13) is installed on the power shaft (12).

3. A ditch terrain detection device for land surveying and mapping according to claim 2, characterized in that: The sub-measurement assembly (2) further comprises a power cylinder (14), a power telescopic rod (15), a power rotating sleeve (16), a power support block (17), a power rotary machine (18) and a power fan (19); the power cylinder (14) is clamped on a clamping seat (13); the power telescopic rod (15) is slidably connected to the power cylinder (14); the power rotary machine (16) is mounted on the top of the power support block (17); the power telescopic rod (15) is coaxially rotatably connected to the power rotary sleeve (16); the power rotary machine (18) is mounted on one side of the power support block (17); and the power fan (19) is driven to rotate by the power rotary machine (18).

4. A river ditch terrain detection device for land surveying and mapping according to claim 3, characterized in that: The sub-measurement assembly (2) further comprises a sensing float (20), a sensing sleeve rod (21), a sensing spring (22) and a sensing support plate (23); the sensing float (20) is disposed at four corners at the bottom of the machine body (9); the sensing sleeve rod (21) is disposed at the bottom of the sensing float (20); the sensing support plate (23) is slidably connected to the middle of the sensing sleeve rod (21); and the sensing spring (22) is installed between the sensing float (20) and the sensing support plate (23).

5. The river ditch terrain detection device for land surveying and mapping according to claim 4, characterized in that: The sub-detection assembly (2) comprises a multi-stage detection rod (24), a detection block (25) and a detection head (26); the multi-stage detection rod (24) is mounted on the bottom of the machine body (9); the detection block (25) is detachably connected to the bottom of the multi-stage detection rod (24); and the detection head (26) is mounted on the bottom and side of the detection block (25).

6. A ditch terrain detection device for land surveying and mapping according to claim 5, characterized in that: A detachable sampling device (37) is installed at the bottom of the induction support plate (23).

7. A ditch terrain detection device for land surveying and mapping according to claim 6, characterized in that: The sampling device (37) comprises a sampling frame (32), a sampling running wheel (33), a sampling hinge rod (34), a sampling rotating drum (35) and a sampling scraper (38); the sampling running wheels (33) are installed on both sides of the sampling frame (32); rotatable sampling hinge rods (34) are installed at both ends of the sampling frame (32); the sampling rotating drum (35) is installed at one end of the sampling hinge rod (34) away from the sampling frame (32); and a plurality of sampling scrapers (38) evenly spaced are installed on the outer wall of the sampling rotating drum (35).

8. The river ditch terrain detection device for land surveying and mapping according to claim 7, characterized in that: The frame assembly (1) comprises a frame support (5), a frame slider (6) and a frame reel (7); the frame support (5) is fixedly connected to the top of the floating seat (3); the frame slider (6) is slidably connected to the middle of the frame support (5); the frame reel (7) is rotatably connected to the middle of the frame slider (6); and the pull rope (8) is connected to the frame reel (7).

9. The river ditch terrain detection device for land surveying and mapping according to claim 8, characterized in that: The bottom measuring assembly (4) comprises a bottom measuring buoy (27), a bottom measuring power paddle (28), a bottom probe (29), a water supply and drainage pipe (30) and a bottom measuring bracket (31); the bottom measuring buoy (27) is placed on the top of the bottom measuring bracket (31); the bottom measuring power paddle (28) is rotatably installed in the middle of the bottom measuring bracket (31); the water supply and drainage pipe (30) is connected to the middle of the bottom measuring buoy (27); and the bottom probe (29) is installed at the bottom of the bottom measuring bracket (31).

10. The river ditch terrain detection device for land surveying and mapping according to claim 9, characterized in that: The water supply and drainage pipe (30) controls the filling and emptying of the water volume of the bottom measuring buoy (27). The bottom measuring bracket (31) and the bottom of the floating seat (3) are both provided with sensing probes, which keep the same position after the bottom measuring component (4) sinks to the bottom.

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