A river ditch terrain detection device for land surveying and mapping

Abstract

The present invention relates to the technical field of surveying and mapping devices, and discloses a river ditch terrain detection device for land surveying, comprising 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 assembly is 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. The sub-measurement assembly comprises a body, a pull buckle, a power swivel seat, a swivel seat telescopic rod, a power shaft, and a clamping seat. The pull 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. This solves the problem in the prior art that it is difficult to measure the center depth of the ditch and difficult to measure the ditch across the ditch in the traditional method.

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] Chinese patent publication number CN118323973B discloses a river depth measuring device for land surveying, comprising a measurement and control device and a transducer body, the transducer body being electrically connected to a connecting cable, the connecting cable being provided with a connecting plug, the measurement and control device being provided with a connecting socket compatible with the connecting plug, the device also comprising a mounting frame, a sealing box, a conical cylinder, and a rotating winding assembly, with mounting chambers being provided on both sides of the mounting frame, the sealing box being provided at the bottom of the measurement and control device, the conical cylinder being provided in the middle of the mounting frame, the connecting cable passing through the conical cylinder, and a rotating winding assembly being provided between the sealing box and the conical cylinder. The above technical solution solves the problem in the prior art that ultrasonic depth sounders are prone to ultrasonic transducer deviation due to the fluidity of the river during use, and that the cable is easily damaged during use.

[0003] Chinese patent publication number CN117433495A discloses a river depth measuring instrument for land surveying, including a hull, a moving mechanism provided in the hull, a center console provided in the hull, a rudder provided on the lower side of the center console, two fixing mechanisms provided in the hull, the fixing mechanisms located at both ends of the hull, a measuring mechanism provided in the hull, a speed regulating box provided in the hull, an output shaft provided on the speed regulating box, the output shaft and the measuring mechanism are transmission-connected, a guide mechanism provided on the lower side of the hull, the guide mechanism and the speed regulating box are transmission-connected, the measuring mechanism is located inside the guide mechanism, a driving mechanism provided in the hull, the driving mechanism is movably connected to the moving mechanism, the fixing mechanism and the measuring mechanism respectively, a baffle fixedly connected to the hull, a receiver provided 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 this 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 multiple 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 component 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 slidingly 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 component 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 connected to the power rotating sleeve for rotation, 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 the four corners and is placed 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. The sensing spring is installed between the sensing float and the sensing support plate.

[0010] The sub-measurement 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 includes a sampling frame, a sampling running wheel, a sampling hinge rod, a sampling 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, the sampling drum is installed at the 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 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. The pull rope is connected to the frame drum.

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

[0015] The water supply and drainage pipe controls the filling and emptying of water in the bottom measuring float. 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 assembly sinks to the bottom.

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

[0017] This design allows the entire detection device to adapt to varying ditch terrains. With the support frame assembly fixed to the top of the floating base, the sub-measuring components arranged in a ring, and the bottom-measuring components connected to the bottom of the floating base, the entire device can be stably deployed in the ditch, improving measurement stability and accuracy. This design also allows for precise measurement of the center depth of the ditch, resolving the difficulty of measuring the center depth of the ditch with 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 the 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 and the power rotating sleeve are coaxially connected for rotation, 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 the sub-measurement assembly connected to the pull-frame assembly via a pull rope allows the sub-measurement assembly to move freely in the ditch while maintaining linkage with the pull-frame assembly. This allows for flexible measurements 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, improving 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 measurements, especially in complex ditch terrain. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

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

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

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

[0025] Reference numerals:

[0026] 1. Puller assembly; 2. Sub-measurement assembly; 3. Floating seat; 4. Bottom measurement assembly; 5. Puller bracket; 6. Puller slide; 7. Puller drum; 8. Pull rope; 9. Machine body; 10. Pull buckle; 11. Power swivel seat; 12. Power shaft; 13. Clamping seat; 14. Power cylinder; 15. Power telescopic rod; 16. Power swivel sleeve; 17. Power support block; 18. Power transfer; 19. Power fan; 20. Induction float; 2 1. Sensing sleeve; 22. Sensing spring; 23. Sensing support plate; 24. Multi-stage detection rod; 25. Detection block; 26. Detection head; 27. Bottom detection float; 28. Bottom detection power paddle; 29. ​​Bottom probe; 30. Water supply and drainage pipe; 31. Bottom detection 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 solutions and advantages of this application more clearly understood, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0028] The implementation of this application is described in detail below with reference to 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, they are based on the orientation or position relationship shown in the drawings. This is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate 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 and mapping, 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 through a pull rope 8, and the bottom measurement assembly 4 is connected to the bottom of the floating seat 3 through the pull rope 8.

[0031] This design allows the entire detection device to adapt to diverse ditch terrains. With the support frame assembly 1 fixed to the top of the floating base 3, the sub-measuring components 2 arranged in a ring, and the bottom measuring component 4 connected to the bottom of the floating base 3, the entire device can be stably deployed in the ditch, improving measurement stability and accuracy. This design also allows for precise measurement of the center depth of the ditch, resolving the difficulty of measuring the center depth of the ditch with traditional methods.

[0032] The sub-measurement component 2 includes a body 9, a pull buckle 10, a power swivel seat 11, a swivel seat telescopic rod 36, a power shaft 12 and a clamping seat 13. The pull buckle 10 is symmetrically fixed to the top of the body 9, the power swivel seat 11 is slidingly 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 rotating 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 of the sub-measurement component 2 being connected to the pull frame component 1 via a pull rope 8 allows the sub-measurement component 2 to move freely in the ditch while maintaining linkage with the pull frame component 1 and the sub-measurement component 2. This allows for flexible measurements 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, improving the safety and reliability during the measurement process. The sub-measurement component 2 includes 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 the four corners and is placed 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. 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 sub-measuring assembly 2 to sense changes in the ditch bottom. Through the sliding connection of sensing support plate 23 and the elasticity of sensing spring 22, precise detection of the ditch bottom topography is achieved, improving detection sensitivity and accuracy. This configuration helps to improve the reliability of measurement results, especially in cases where the ditch bottom topography 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 probe rod 24 to extend and retract according to varying water depths. The configuration of the probe block 25 and probe head 26 enables more precise detection, enabling detailed topographic data of the riverbed and enhancing the depth and detail of the detection. This design helps improve measurement accuracy and efficiency, especially in deepwater areas.

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

[0040] The sampling device 37 includes a sampling frame 32, a sampling running wheel 33, a sampling hinge 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 hinges 34 are installed at both ends of the sampling frame 32. The sampling drum 35 is installed at the end of the sampling hinge 34 away from the sampling frame 32, and a plurality of sampling scrapers 38 are installed on the outer wall of the sampling drum 35 at equal intervals.

[0041] The sampling device 37 includes a sampling frame 32, sampling wheels 33, a sampling hinge 34, a sampling drum 35, and a sampling scraper 38. This design enables the sampling device 37 to effectively collect samples from the bottom of the ditch, improving the efficiency and quality of sample collection. This design helps improve the efficiency and accuracy of sample collection, especially in situations where the bottom of the ditch has complex terrain.

[0042] The frame assembly 1 includes a frame support 5, a frame slider 6, and a frame drum 7. The frame support 5 is fixed 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 drum 7 is rotatably connected to the middle of the frame slider 6. The pull rope 8 is connected to the frame drum 7. The sliding and rotating connection design of the frame assembly 1 allows the frame assembly 1 to flexibly adjust its position and angle to adapt to different measurement requirements, improving measurement flexibility and efficiency. This design helps improve measurement flexibility and efficiency, especially when adjustment of measurement angle and position is required. The bottom measurement assembly 4 includes a bottom measurement buoy 27, a bottom measurement propeller 28, a bottom probe 29, a water supply and drainage pipe 30, and a bottom measurement frame 31. The bottom measurement buoy 27 is placed on the top of the bottom measurement frame 31. The bottom measurement propeller 28 is rotatably mounted in the middle of the bottom measurement frame 31. The water supply and drainage pipe 30 is connected to the middle of the bottom measurement buoy 27. The bottom probe 29 is mounted at the bottom of the bottom measurement frame 31.

[0043] This configuration of the bottom-detection assembly 4 enables it to be stably deployed at the bottom of the ditch and effectively survey the terrain. The configuration of the bottom-detection propeller 28 also allows the bottom-detection assembly 4 to move within the ditch, thereby improving the coverage and efficiency of the survey. This configuration helps improve the coverage and efficiency of surveys, especially in situations where the ditch bottom terrain is complex.

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

[0045] This design allows the bottom-detection float 27 to adjust its buoyancy as needed to maintain stability at the bottom of the ditch. It also maintains a consistent position after the bottom-detection assembly 4 sinks, improving detection stability and accuracy. This design helps improve measurement stability and accuracy, especially in situations where the bottom of the ditch has complex terrain.

[0046] Here's how this application works:

[0047] Overall structure and deployment:

[0048] The detection device consists of a frame assembly 1, sub-detection assemblies 2, a floating base 3, and a bottom detection assembly 4, forming a complete detection system. The frame assembly 1 is fixed to the top of the floating base 3 and serves as the support structure for the entire device. The sub-detection assemblies 2 are arranged in a ring on top of the floating base 3 and connected to the frame assembly 1 via a pull rope 8, which allows for adjustment and fixation of the sub-detection assemblies 2. The bottom detection assembly 4 is connected to the bottom of the floating base 3 via 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-detection assembly 2 comprises a body 9, a pull tab 10, a power swivel base 11, a swivel base telescopic rod 36, a power shaft 12, and a clamping base 13. The power swivel base 11 is slidably connected to the side of the body 9. The swivel base telescopic rod 36 is mounted on both sides of the body 9, with its telescopic ends connected to the power swivel base 11, enabling the telescopic movement of the sub-detection assembly 2. The power shaft 12 is rotatably connected to the power swivel base 11, and the clamping base 13 is mounted on the power shaft 12 to clamp and secure the detection equipment.

[0051] Power and Sensing Systems:

[0052] The sub-assembly 2 also includes a power cylinder 14, a power telescopic rod 15, a power swivel sleeve 16, a power support block 17, a power converter 18, and a power fan 19. The power cylinder 14 is clamped to the clamping base 13, and the power telescopic rod 15 is slidably connected to the power cylinder 14 to achieve power transmission and expansion. The power converter 16 is mounted on top of the power support block 17, and the power telescopic rod 15 is coaxially connected to the power converter 16 to achieve rotation. The power converter 18 is mounted on one side of the power support block 17, and the power fan 19 is driven by the power converter 18 to generate propulsion in the water.

[0053] Sensing and detection systems:

[0054] The sub-sensing assembly 2 also includes sensing floats 20, sensing rods 21, sensing springs 22, and sensing support plates 23. The sensing floats 20 are positioned at the four corners of the bottom of the housing 9. The sensing rods 21 are positioned at the bottom of the sensing floats 20. The sensing support plates 23 are slidably connected to the middle of the sensing rods 21. The sensing springs 22 are mounted between the sensing floats 20 and the sensing support plates 23 to sense changes in the ditch bottom.

[0055] Working principle of sampling device 37:

[0056] The sampling device 37 includes a sampling frame 32, sampling wheels 33, a sampling hinge 34, a sampling drum 35, and sampling scrapers 38. The sampling frames 32 are mounted with sampling wheels 33 on both sides, and rotatable sampling hinges 34 are mounted at both ends. The sampling drum 35 is mounted on the end of the sampling hinge 34 away from the sampling frame 32. Multiple sampling scrapers 38 are evenly spaced and mounted on the outer wall of the sampling drum 35 to collect samples from the bottom of the ditch.

[0057] Working principles of the pull-up component 1 and the bottom test component 4:

[0058] The gantry assembly 1 includes a gantry support 5, a gantry slider 6, and a gantry drum 7. The gantry support 5 is fixed to the top of the floating seat 3. The gantry slider 6 is slidably connected to the middle of the gantry support 5. The gantry drum 7 is rotatably connected to the middle of the gantry slider 6. A pull rope 8 is connected to the gantry drum 7 and is used to adjust 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 support 31. The bottom measurement buoy 27 is placed on the top of the bottom measurement support 31. The bottom measurement power paddle 28 is rotatably mounted in the middle of the bottom measurement support 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 support 31 and is used to detect 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 replacements and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A river ditch terrain detection device for land surveying and mapping, characterized in that: It comprises a pulling frame assembly (1), a sub-measurement assembly (2), a floating seat (3) and a bottom measurement assembly (4), wherein the pulling frame assembly (1) is fixedly connected to the top of the floating seat (3), a plurality of the 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); The sub-measurement component (2) includes a body (9), a buckle (10), a power rotating seat (11), a rotating seat telescopic rod (36), a power shaft (12) and a clamping seat (13), wherein the buckle (10) is symmetrically fixed to the top of the body (9), the power rotating seat (11) is slidably connected to the side of the body (9), the rotating seat telescopic rod (36) is installed on both sides of the body (9), the telescopic end of the rotating seat telescopic rod (36) is connected to the power rotating seat (11), the power shaft (12) is rotatably connected to the power rotating seat (11), and the clamping seat (13) is installed on the power shaft (12); The sub-measurement assembly (2) further 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), wherein the power cylinder (14) is clamped on the 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 machine (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).

2. The gully terrain detection device for land surveying and mapping according to claim 1, 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), wherein the sensing float (20) is disposed at four corners on the bottom of the 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).

3. The gully terrain detection device for land surveying and mapping according to claim 2, 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 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).

4. The gully terrain detection device for land surveying and mapping according to claim 3, characterized in that: A detachable sampling device (37) is installed at the bottom of the sensing support plate (23).

5. The gully terrain detection device for land surveying and mapping according to claim 4, characterized in that: The sampling device (37) comprises a sampling frame (32), a sampling wheel (33), a sampling hinge (34), a sampling drum (35) and a sampling scraper (38), wherein the sampling wheels (33) are mounted on both sides of the sampling frame (32), rotatable sampling hinges (34) are mounted on both ends of the sampling frame (32), a sampling drum (35) is mounted on one end of the sampling hinge (34) away from the sampling frame (32), and a plurality of sampling scrapers (38) evenly spaced are mounted on the outer wall of the sampling drum (35).

6. The gully terrain detection device for land surveying and mapping according to claim 5, characterized in that: The pull frame assembly (1) includes a pull frame bracket (5), a pull frame slider (6) and a pull frame reel (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 reel (7) is rotatably connected to the middle of the pull frame slider (6), and the pull rope (8) is connected to the pull frame reel (7).

7. The gully terrain detection device for land surveying and mapping according to claim 6, characterized in that: The bottom measuring assembly (4) includes 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), wherein the bottom measuring buoy (27) is placed on the top of the bottom measuring bracket (31), the bottom measuring power paddle (28) is rotatably mounted 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 mounted at the bottom of the bottom measuring bracket (31).

8. The gully terrain detection device for land surveying and mapping according to claim 7, 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 maintain the same position after the bottom measuring component (4) sinks to the bottom.

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