Water conservancy surveying and mapping unmanned ship device beneficial to navigation

By installing hollow cylinders and waterproof electric push rods on both sides of the unmanned vessel, the problem of navigation resistance was solved, and the stability of the unmanned vessel was improved when it was sailing quickly on calm water and in rough seas, thus improving the efficiency of water conservancy surveying and mapping.

CN224335801UActive Publication Date: 2026-06-09SHAANXI WATER CONSERVANCY & ELECTRIC POWER SURVEY & DESIGN INSTITUTE (GROUP) CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHAANXI WATER CONSERVANCY & ELECTRIC POWER SURVEY & DESIGN INSTITUTE (GROUP) CO LTD
Filing Date
2025-08-27
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

The existing unmanned vessels, when carrying heavy buoys, experience significant resistance, which affects the efficiency of water conservancy surveying work.

Method used

Hollow cylinders and waterproof electric push rods are installed on both sides of the unmanned vessel. The hollow cylinders are retracted when the water is calm to reduce navigation resistance; when the wind and waves are strong, the hollow cylinders are sunk and filled with water to increase the counterweight and improve stability.

Benefits of technology

It reduces navigation resistance when navigating quickly on calm waters, improves the efficiency of water conservancy surveying and mapping, and enhances stability in windy and turbulent conditions.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a navigation-friendly unmanned surface vessel (USV) for water conservancy surveying. It includes a USV body, a surveying instrument connected to one side of the top of the USV body, and several connecting arms hinged along the length of the USV body on opposite sides. Hollow cylinders are connected between the ends of the connecting arms on the same side of the USV body. Two electric push rods are hinged to the top of the USV body, with their ends hinged to the connecting arms on both sides of the USV body. This utility model uses connecting arms to install a hollow cylinder on each side of the USV body, and also installs waterproof electric push rods between the connecting arms and the USV body. This allows the hollow cylinders to be retracted and not in contact with the water during rapid navigation on calm water, thereby greatly reducing navigation resistance and improving the efficiency of water conservancy surveying work.
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Description

Technical Field

[0001] This utility model belongs to the technical field of water conservancy surveying equipment, specifically relating to a navigation-friendly unmanned vessel device for water conservancy surveying. Background Technology

[0002] Traditional aquatic environment monitoring and mapping involve mounting monitoring sensors or mapping equipment on survey vessels or marine monitoring ships. Surveyors pre-plan the survey lines, and the ship is then guided by a navigator to take measurements. However, with the emergence of new marine mapping platforms in recent years, such as unmanned surface vessels (USVs), methods using small vessels equipped with various monitoring sensors and operating remotely or autonomously to monitor specific hydrological and aquatic environmental elements are gaining increasing attention.

[0003] Chinese patent CN222329967U discloses an unmanned vessel for water conservancy surveying, including a hull and two sets of load-bearing buoys installed on the hull. The two sets of load-bearing buoys are located on both sides of the hull, and each set of load-bearing buoys has a water storage cavity.

[0004] To improve the stability of unmanned vessels on the water surface, a weighted buoy was added to each side of the unmanned vessel. Water was injected into the weighted buoy as a counterweight to improve the stability of the unmanned vessel. However, in actual use, there are still some shortcomings. For example, when the water is calm and fast navigation is required, the weighted buoy will cause a lot of resistance when the unmanned vessel is sailing, which greatly affects the efficiency of water conservancy surveying work. Utility Model Content

[0005] The purpose of this invention is to provide a navigation-friendly unmanned surface vessel (USV) for water conservancy surveying, which solves the problem that the heavy-duty buoys on USVs cause significant resistance during navigation in the prior art.

[0006] The technical solution adopted by this utility model is: a navigation-friendly unmanned water conservancy surveying vessel device, including an unmanned vessel body, a surveying instrument connected to one side of the top of the unmanned vessel body, several connecting arms hinged to the opposite sides of the unmanned vessel body along its length, hollow cylinders connected between the ends of the connecting arms on the same side of the unmanned vessel body, and two electric push rods hinged to the top of the unmanned vessel body, the ends of the two electric push rods being respectively hinged to the connecting arms on both sides of the unmanned vessel body.

[0007] The feature of this utility model is that,

[0008] The unmanned vessel's main body has a groove at the connection arm on its side wall, and the connection arm is connected to the bottom side of the groove.

[0009] The end of the electric push rod is hinged to the middle connecting arm on the same side of the unmanned vessel's main body.

[0010] The inner wall of the hollow cylinder is connected with a partition along its length. Two pressure relief pipes are connected to the top of the hollow cylinder, and the ends of the pressure relief pipes penetrate the partition. The bottom of the hollow cylinder has an inlet and outlet. The surface of the partition is connected to a water blocking component through a pushing assembly, and the water blocking component matches the inlet and outlet.

[0011] The actuation assembly includes an electric actuator connected to the surface of the partition plate. The electric actuator is positioned between two pressure relief pipes. A connecting block is connected to the end of the electric actuator, which penetrates the partition plate. The bottom edge of the connecting block is connected to a water-blocking component.

[0012] The partition has an opening, and the connecting block passes through the opening to connect with the water-blocking component.

[0013] The water-blocking component includes a water-blocking cylinder, which is located between the partition and the inner bottom of the hollow cylinder. The top wall of the water-blocking cylinder is connected to the connecting block, and the length of the water-blocking cylinder is not less than the inner diameter of the inlet and outlet.

[0014] A notch is provided on one side of the bottom of the water-blocking cylinder.

[0015] The beneficial effects of this utility model are:

[0016] This utility model relates to a navigation-friendly unmanned surface vessel (USV) for water conservancy surveying. A hollow cylinder is installed on each side of the USV's main body via a connecting arm. A waterproof electric push rod is also installed between the connecting arm and the USV's main body. When navigating rapidly on calm water, the hollow cylinders can be retracted to avoid contact with the water, thus greatly reducing navigation resistance and improving the efficiency of water conservancy surveying work. By dividing the interior of the hollow cylinders into an air chamber and a water chamber, the air chamber can be used to increase buoyancy, while the water chamber can be filled with water to increase counterweight and improve the stability of the USV in large waves. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the unmanned water conservancy surveying vessel device that facilitates navigation according to this utility model;

[0018] Figure 2 This is a bottom view of the navigation-friendly unmanned water conservancy surveying vessel device of this utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of the hollow cylinder in the navigation-friendly unmanned water conservancy surveying vessel device of this utility model;

[0020] Figure 4 This is a schematic diagram of the hollow cylinder structure in the navigation-friendly unmanned water conservancy surveying vessel device of this utility model;

[0021] Figure 5 This is a diagram showing the hollow cylinder in the retracted state of the unmanned water conservancy surveying vessel device that facilitates navigation, according to this utility model.

[0022] In the diagram, 1. Unmanned vessel body, 2. Surveying instrument, 3. Hollow cylinder, 4. Connecting arm, 5. Waterproof electric push rod, 6. Groove, 7. Partition, 8. Air chamber, 9. Water chamber, 10. Pressure relief pipe, 11. Inlet and outlet, 12. Water blocking cylinder, 13. Notch, 14. Connecting block, 15. Electric push rod, 16. Opening. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] This utility model provides an unmanned surface vessel device for water conservancy surveying that facilitates navigation, such as... Figure 1-2 As shown, the unmanned surface vessel (USV) includes a main body 1. A surveying instrument 2 is connected to one side of the top of the USV main body 1. Several connecting arms 4 are hinged along the length of the USV main body 1 on both opposite sides. Hollow cylinders 3 are connected between the ends of the connecting arms 4 on the same side of the USV main body 1. Two electric push rods 5 are hinged to the top of the USV main body 1, and the ends of the two electric push rods 5 are respectively hinged to the connecting arms 4 on both sides of the USV main body 1. The USV main body 1 adopts the type of USV commonly used in hydraulic surveying. The surveying instrument 2 is fixedly installed on the rear top of the USV main body 1. The electric push rods 5 are waterproof electric push rods. During use, when the water surface is relatively calm and rapid navigation is required, the connecting arms 4 can be pulled up by the waterproof electric push rods 5, so that the hollow cylinders 3 are suspended above the sides of the USV main body 1 and do not sink into the water. At this time, the USV main body 1 will not be subject to additional resistance when navigating on the water surface.

[0025] Example 1

[0026] A navigation-friendly unmanned surface vessel (USV) for water conservancy surveying includes a USV body 1. A surveying instrument 2 is connected to one side of the top of the USV body 1. Several connecting arms 4 are hinged to each other along the length of the USV body 1 on opposite sides. Hollow cylinders 3 are connected between the ends of the connecting arms 4 on the same side of the USV body 1. Two electric push rods 5 are hinged to the top of the USV body 1. The ends of the two electric push rods 5 are respectively hinged to the connecting arms 4 on both sides of the USV body 1.

[0027] A groove 6 is provided on the side wall of the unmanned vessel body 1 where the connecting arm 4 is connected, and the connecting arm 4 is connected to the bottom side of the groove 6. The groove 6 is located above the hinge point between the connecting arm 4 and the unmanned vessel body 1. When the hollow cylinder 3 is retracted, the connecting arm 4 will rotate upward. The groove 6 can prevent the connecting arm 4 from interfering with the side of the unmanned vessel body 1 and affecting the lifting operation of the hollow cylinder 3.

[0028] Example 2

[0029] A navigation-friendly unmanned surface vessel (USV) for water conservancy surveying includes a USV body 1. A surveying instrument 2 is connected to one side of the top of the USV body 1. Several connecting arms 4 are hinged to each other along the length of the USV body 1 on opposite sides. Hollow cylinders 3 are connected between the ends of the connecting arms 4 on the same side of the USV body 1. Two electric push rods 5 are hinged to the top of the USV body 1. The ends of the two electric push rods 5 are respectively hinged to the connecting arms 4 on both sides of the USV body 1.

[0030] A groove 6 is provided on the side wall of the unmanned vessel body 1 where the connecting arm 4 is connected, and the connecting arm 4 is connected to the bottom side of the groove 6.

[0031] The end of the electric push rod 5 is hinged to the middle connecting arm 4 on the same side of the unmanned vessel body 1. Since the ends of the connecting arms 4 on the same side of the unmanned vessel body 1 are all connected to the same hollow cylinder 3, the electric push rod 5 can move one of the connecting arms 4, thereby driving the hollow cylinder 3 to move.

[0032] Example 3

[0033] A navigation-friendly unmanned surface vessel (USV) for water conservancy surveying includes a USV body 1. A surveying instrument 2 is connected to one side of the top of the USV body 1. Several connecting arms 4 are hinged to each other along the length of the USV body 1 on opposite sides. Hollow cylinders 3 are connected between the ends of the connecting arms 4 on the same side of the USV body 1. Two electric push rods 5 are hinged to the top of the USV body 1. The ends of the two electric push rods 5 are respectively hinged to the connecting arms 4 on both sides of the USV body 1.

[0034] A groove 6 is provided on the side wall of the unmanned vessel body 1 where the connecting arm 4 is connected, and the connecting arm 4 is connected to the bottom side of the groove 6.

[0035] The end of the electric push rod 5 is hinged to the middle connecting arm 4 on the same side of the unmanned vessel body 1.

[0036] like Figure 3As shown, a partition 7 is connected to the inner wall of the hollow cylinder 3 along its length. Two pressure relief pipes 10 are connected to the top of the hollow cylinder 3, and the ends of the pressure relief pipes 10 penetrate the partition 7. An inlet and outlet water port 11 is provided at the bottom of the hollow cylinder 3. A water-blocking component is connected to the surface of the partition 7 through a pushing assembly, and the water-blocking component matches the inlet and outlet water port 11. The partition 7 divides the interior of the hollow cylinder into an air chamber 8 and a water chamber 9, which are distributed vertically. The air chamber 8 provides good buoyancy for the hollow cylinder 3, while water can be injected into the water chamber 9 through the inlet and outlet water port 11 to increase the counterweight. Both can be used to improve the stability of the unmanned vessel body 1. The pressure relief pipe 10 is connected to the water chamber 9. When water is injected into the water chamber 9, it is naturally injected into the water chamber 9 through the inlet and outlet 11. To prevent air in the water chamber 9 from affecting the water intake, the pressure relief pipe 10 is installed so that when water enters the water chamber 9 through the inlet and outlet 11, the air inside the water chamber 9 is discharged through the pressure relief pipe 10. When no water is being injected, the push assembly drives the water-blocking component to block the inlet and outlet 11.

[0037] Example 4

[0038] A navigation-friendly unmanned surface vessel (USV) for water conservancy surveying includes a USV body 1. A surveying instrument 2 is connected to one side of the top of the USV body 1. Several connecting arms 4 are hinged to each other along the length of the USV body 1 on opposite sides. Hollow cylinders 3 are connected between the ends of the connecting arms 4 on the same side of the USV body 1. Two electric push rods 5 are hinged to the top of the USV body 1. The ends of the two electric push rods 5 are respectively hinged to the connecting arms 4 on both sides of the USV body 1.

[0039] A groove 6 is provided on the side wall of the unmanned vessel body 1 where the connecting arm 4 is connected, and the connecting arm 4 is connected to the bottom side of the groove 6.

[0040] The end of the electric push rod 5 is hinged to the middle connecting arm 4 on the same side of the unmanned vessel body 1.

[0041] The inner wall of the hollow cylinder 3 is connected with a partition 7 along its length. Two pressure relief pipes 10 are connected to the top of the hollow cylinder 3. The ends of the pressure relief pipes 10 penetrate the partition 7. The bottom of the hollow cylinder 3 is provided with an inlet and outlet 11. The surface of the partition 7 is connected to a water blocking component through a pushing assembly. The water blocking component matches the inlet and outlet 11.

[0042] The actuating assembly includes an electric actuator 15, which is connected to the surface of the partition 7 and positioned between the two pressure relief pipes 10. A connecting block 14 is connected to the end of the electric actuator 15, penetrating the partition 7. The bottom edge of the connecting block 14 is connected to a water-blocking component. The electric actuator 15 pushes the connecting block 14, causing the water-blocking component to move and thus sealing the inlet and outlet ports 11.

[0043] Example 5

[0044] A navigation-friendly unmanned surface vessel (USV) for water conservancy surveying includes a USV body 1. A surveying instrument 2 is connected to one side of the top of the USV body 1. Several connecting arms 4 are hinged to each other along the length of the USV body 1 on opposite sides. Hollow cylinders 3 are connected between the ends of the connecting arms 4 on the same side of the USV body 1. Two electric push rods 5 are hinged to the top of the USV body 1. The ends of the two electric push rods 5 are respectively hinged to the connecting arms 4 on both sides of the USV body 1.

[0045] A groove 6 is provided on the side wall of the unmanned vessel body 1 where the connecting arm 4 is connected, and the connecting arm 4 is connected to the bottom side of the groove 6.

[0046] The end of the electric push rod 5 is hinged to the middle connecting arm 4 on the same side of the unmanned vessel body 1.

[0047] The inner wall of the hollow cylinder 3 is connected with a partition 7 along its length. Two pressure relief pipes 10 are connected to the top of the hollow cylinder 3. The ends of the pressure relief pipes 10 penetrate the partition 7. The bottom of the hollow cylinder 3 is provided with an inlet and outlet 11. The surface of the partition 7 is connected to a water blocking component through a pushing assembly. The water blocking component matches the inlet and outlet 11.

[0048] The actuation assembly includes an electric actuator 15, which is connected to the surface of the partition 7. The electric actuator 15 is disposed between two pressure relief pipes 10. The end of the electric actuator 15 is connected to a connecting block 14, which passes through the partition 7. The bottom edge of the connecting block 14 is connected to a water-blocking component.

[0049] The partition 7 has an opening 16, through which the connecting block 14 passes and connects to the water-blocking component. The water-blocking component seals the opening 16, which allows the connecting block 14 to move back and forth. During the movement of the connecting block 14, the opening 16 is always blocked by the top of the water-blocking component, so the water in the water cavity 9 will not enter the air cavity 8 through the opening 16, and the air cavity 8 is always kept in a sealed state to provide buoyancy.

[0050] Example 6

[0051] A navigation-friendly unmanned surface vessel (USV) for water conservancy surveying includes a USV body 1. A surveying instrument 2 is connected to one side of the top of the USV body 1. Several connecting arms 4 are hinged to each other along the length of the USV body 1 on opposite sides. Hollow cylinders 3 are connected between the ends of the connecting arms 4 on the same side of the USV body 1. Two electric push rods 5 are hinged to the top of the USV body 1. The ends of the two electric push rods 5 are respectively hinged to the connecting arms 4 on both sides of the USV body 1.

[0052] A groove 6 is provided on the side wall of the unmanned vessel body 1 where the connecting arm 4 is connected, and the connecting arm 4 is connected to the bottom side of the groove 6.

[0053] The end of the electric push rod 5 is hinged to the middle connecting arm 4 on the same side of the unmanned vessel body 1.

[0054] The inner wall of the hollow cylinder 3 is connected with a partition 7 along its length. Two pressure relief pipes 10 are connected to the top of the hollow cylinder 3. The ends of the pressure relief pipes 10 penetrate the partition 7. The bottom of the hollow cylinder 3 is provided with an inlet and outlet 11. The surface of the partition 7 is connected to a water blocking component through a pushing assembly. The water blocking component matches the inlet and outlet 11.

[0055] The actuation assembly includes an electric actuator 15, which is connected to the surface of the partition 7. The electric actuator 15 is disposed between two pressure relief pipes 10. The end of the electric actuator 15 is connected to a connecting block 14, which passes through the partition 7. The bottom edge of the connecting block 14 is connected to a water-blocking component.

[0056] The partition 7 has an opening 16, and the connecting block 14 passes through the opening 16 and connects to the water-blocking component.

[0057] The water-blocking component includes a water-blocking cylinder 12, which is disposed between the partition 7 and the inner bottom of the hollow cylinder 3. The top wall of the water-blocking cylinder 12 is connected to the connecting block 14, and the length of the water-blocking cylinder 12 is not less than the inner diameter of the inlet / outlet 11. Both ends of the water-blocking cylinder 12 are open, and the water-blocking cylinder 12 is a hollow cylinder, so that when water enters the water cavity 9 from the inlet / outlet 11, it can easily pass through the water-blocking cylinder 12.

[0058] Example 7

[0059] A navigation-friendly unmanned surface vessel (USV) for water conservancy surveying includes a USV body 1. A surveying instrument 2 is connected to one side of the top of the USV body 1. Several connecting arms 4 are hinged to each other along the length of the USV body 1 on opposite sides. Hollow cylinders 3 are connected between the ends of the connecting arms 4 on the same side of the USV body 1. Two electric push rods 5 are hinged to the top of the USV body 1. The ends of the two electric push rods 5 are respectively hinged to the connecting arms 4 on both sides of the USV body 1.

[0060] A groove 6 is provided on the side wall of the unmanned vessel body 1 where the connecting arm 4 is connected, and the connecting arm 4 is connected to the bottom side of the groove 6.

[0061] The end of the electric push rod 5 is hinged to the middle connecting arm 4 on the same side of the unmanned vessel body 1.

[0062] The inner wall of the hollow cylinder 3 is connected with a partition 7 along its length. Two pressure relief pipes 10 are connected to the top of the hollow cylinder 3. The ends of the pressure relief pipes 10 penetrate the partition 7. The bottom of the hollow cylinder 3 is provided with an inlet and outlet 11. The surface of the partition 7 is connected to a water blocking component through a pushing assembly. The water blocking component matches the inlet and outlet 11.

[0063] The actuation assembly includes an electric actuator 15, which is connected to the surface of the partition 7. The electric actuator 15 is disposed between two pressure relief pipes 10. The end of the electric actuator 15 is connected to a connecting block 14, which passes through the partition 7. The bottom edge of the connecting block 14 is connected to a water-blocking component.

[0064] The partition 7 has an opening 16, and the connecting block 14 passes through the opening 16 and connects to the water-blocking component.

[0065] The water blocking component includes a water blocking cylinder 12, which is disposed between the partition 7 and the inner bottom of the hollow cylinder 3. The top wall of the water blocking cylinder 12 is connected to the connecting block 14, and the length of the water blocking cylinder 12 is not less than the inner diameter of the inlet and outlet 11.

[0066] like Figure 4 As shown, a notch 13 is provided on one side of the bottom of the water-blocking cylinder 12. When water needs to be injected into the water chamber 9, the connecting block 14 can be pulled by the electric push rod 15 to move the water-blocking cylinder 12. When the notch 13 on the water-blocking cylinder 12 coincides with the inlet and outlet 11, the inlet and outlet 11 are no longer blocked, allowing water to enter the water chamber 9. After the water is injected, the water-blocking cylinder 12 is pushed in the opposite direction to block the inlet and outlet 11, thus preventing the water in the water chamber 9 from draining out and increasing the counterweight. When the water needs to be drained, the inlet and outlet 11 is removed from the water surface and the above steps are followed.

[0067] The working principle of this practical unmanned surface vessel for water conservancy surveying, which facilitates navigation, is as follows:

[0068] When the water surface is relatively calm and high-speed navigation is required during use, the connecting arm 4 can be raised by the waterproof electric push rod 5, so that the hollow cylinder 3 is suspended above both sides of the unmanned vessel body 1 without being submerged in water. Figure 5 As shown, the unmanned vessel body 1 will not experience additional resistance when navigating on the water surface. When the water surface is rough, in order to prevent the surveying unmanned vessel from being capsized, the connecting arm 4 can be lowered by pushing the waterproof electric push rod 5, so that the hollow cylinder 3 sinks into the water. During this process, in order to add counterweight to the surveying unmanned vessel, the connecting block 14 can be pulled by the electric push rod 15 first. Then the water blocking cylinder 12 is moved until it no longer blocks the inlet and outlet 11. Then the water will enter the water cavity 9 through the inlet and outlet 11. After the water cavity 9 is filled with water for counterweight, the connecting block 14 is pushed forward by the electric push rod 15. Then the water blocking cylinder 12 is moved until it blocks the inlet and outlet 11 again. At this time, the water inside the water cavity 9 will no longer be discharged from the inlet and outlet 11, but can only remain inside the water cavity 9 as counterweight. The sealed air cavity 8 can give the hollow cylinder 3 a certain buoyancy, thereby improving the stability of the unmanned vessel body 1.

[0069] This utility model is a navigation-friendly unmanned surface vessel (USV) for water conservancy surveying. A hollow cylinder is installed on each side of the USV body via a connecting arm. A waterproof electric push rod is also installed between the connecting arm and the USV body. When navigating rapidly on calm water, the hollow cylinder can be retracted to avoid contact with the water, thereby greatly reducing navigation resistance and improving the efficiency of water conservancy surveying work.

Claims

1. A navigation-friendly unmanned surface vessel (USV) for water conservancy surveying, characterized in that: The unmanned vessel includes a main body (1), a surveying instrument (2) is connected to one side of the top of the main body (1), and several connecting arms (4) are hinged to each other along their length on both sides of the main body (1). Hollow cylinders (3) are connected between the ends of the connecting arms (4) on the same side of the main body (1). Two electric push rods (5) are hinged to the top of the main body (1), and the ends of the two electric push rods (5) are respectively hinged to the connecting arms (4) on both sides of the main body (1).

2. The unmanned surface vessel device for water conservancy surveying as described in claim 1, characterized in that, The unmanned vessel body (1) has a groove (6) at the connecting arm (4) on the side wall, and the connecting arm (4) is connected to the bottom side of the groove (6).

3. The unmanned surface vessel device for water conservancy surveying as described in claim 1, characterized in that, The end of the electric push rod (5) is hinged to the middle connecting arm (4) on the same side of the unmanned vessel body (1).

4. The unmanned surface vessel for water conservancy surveying as described in claim 1, characterized in that, The inner wall of the hollow cylinder (3) is connected with a partition (7) along its length. The top of the hollow cylinder (3) is connected with two pressure relief pipes (10). The ends of the pressure relief pipes (10) penetrate the partition (7). The bottom of the hollow cylinder (3) is provided with an inlet and outlet (11). The surface of the partition (7) is connected with a water blocking component through a pushing assembly. The water blocking component matches the inlet and outlet (11).

5. The unmanned surface vessel device for water conservancy surveying as described in claim 4, characterized in that, The pushing assembly includes an electric push rod (15), which is connected to the surface of the partition (7). The electric push rod (15) is disposed between two pressure relief pipes (10). The end of the electric push rod (15) is connected to a connecting block (14), which penetrates the partition (7). The bottom edge of the connecting block (14) is connected to a water-blocking component.

6. The unmanned surface vessel for water conservancy surveying as described in claim 5, characterized in that, The partition (7) has an opening (16), and the connecting block (14) passes through the opening (16) and connects to the water-blocking component.

7. The unmanned surface vessel device for water conservancy surveying as described in claim 5, characterized in that, The water-blocking component includes a water-blocking cylinder (12), which is disposed between the partition (7) and the inner bottom of the hollow cylinder (3). The top wall of the water-blocking cylinder (12) is connected to the connecting block (14), and the length of the water-blocking cylinder (12) is not less than the inner diameter of the inlet and outlet (11).

8. The unmanned surface vessel device for water conservancy surveying as described in claim 7, characterized in that, The water-blocking cylinder (12) has a notch (13) on one side of the bottom of the cylinder body.