A buoyancy device for a sandbag installation

The combination of buoyancy pipes and underwater propulsion devices enables efficient and precise installation of sand blankets, solving the problems of complex construction and numerous equipment in existing technologies, and improving the safety and accuracy of construction.

CN224395566UActive Publication Date: 2026-06-23SUZHOU SHIBANG TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SUZHOU SHIBANG TECHNOLOGY CO LTD
Filing Date
2025-06-23
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Existing sand-covered installation methods require various large-scale ship machinery and equipment, have poor resistance to wind and waves during construction, involve many construction steps and are risky, have low installation accuracy, and are prone to damaging the pile foundation.

Method used

The buoyancy device, consisting of buoyancy pipes, water pumps, solenoid valves, and bidirectional underwater propulsion, adjusts buoyancy through water injection and drainage. Combined with lifting points and an automatic unhooking device, it achieves precise installation of the sand blanket, eliminating the need for large ship machinery.

Benefits of technology

It improved the accuracy of sand installation, reduced construction risks and costs, enhanced resistance to wind and waves, simplified construction steps, and reduced the risk of damage to the pile foundation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a kind of buoyancy device for sand being installed, including buoyancy pipeline, several buoyancy pipeline parallel or fan-shaped setting, fixed between buoyancy pipeline using hoop;One end of the buoyancy pipeline is provided with end cap, the other end is provided with plug;Water pump, the water pump is fixedly installed in end cap, the input of water pump is provided with the drain pipe being connected with buoyancy pipeline, and the output of water pump is provided with water outlet pipe;Solenoid valve, the solenoid valve is fixedly installed in end cap, and the both ends of solenoid valve are respectively provided with water pipe.This utility model structure is operated by buoyancy pipeline for sand being constructed, and the buoyancy of overall structure is adjusted by water injection, drainage to buoyancy pipeline, and direction is reliably controlled by bidirectional underwater thruster, sand being installed precision is high, and the risk of pile foundation damage can be reduced in construction process;Cancel the requirement of large flat barge, super-large crane and special hanger used in current sand construction process.
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Description

Technical Field

[0001] This utility model belongs to the field of seabed protection technology, and in particular relates to a buoyancy device for installing sand sheets. Background Technology

[0002] Seabed protection refers to a method of protecting the seabed surface from erosion by using sand sheets or other coverings to prevent deep pits from being eroded around the pile foundations of underwater structures, thus affecting the stability of the pile foundations. Sand sheets are usually made of geotextile in the form of grid cells, with the cells filled with sand and gravel, and the total weight is approximately 100 to 1000 tons.

[0003] The existing method of sand-filling construction involves filling the deck of a large flat barge with sand and gravel, then using a tugboat to tow the large flat barge loaded with sand to the vicinity of the pile foundation. Then, a super-large crane and special tooling are used to lift and install the sand to the designated seabed location. This construction method requires a lot of ship and machinery equipment, including large flat barges, super-large cranes, tugboats, and special tooling. The construction process has poor resistance to wind and waves, many construction steps, and high risks. Moreover, the sand installation accuracy is low, and the construction process is prone to damaging the pile foundation. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a highly efficient and energy-saving buoyancy device for installing sand blankets.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:

[0006] A buoyancy device for installing sand sheets includes:

[0007] A buoyancy pipe is provided, and several buoyancy pipes are fixed together by clamps; one end of the buoyancy pipe is provided with an end cap, and the other end is provided with a plug;

[0008] A water pump, which is fixedly installed inside the end cover, has a drain pipe connected to the buoyancy pipe at its input end and an outlet pipe at its output end.

[0009] A solenoid valve, which is fixedly installed inside the end cover, has water pipes at both ends.

[0010] The first bidirectional underwater thruster is located in the middle of the buoyancy pipe at the upper end;

[0011] The second bidirectional underwater propulsion device is located at the end of the buoyancy pipe in the middle.

[0012] Furthermore, the clamp has evenly distributed lifting points.

[0013] Furthermore, the buoyancy pipe is made of plastic.

[0014] Furthermore, a connecting joint is provided at one end of the vent pipe.

[0015] Furthermore, several of the buoyancy pipes are arranged in parallel or fan-shaped configurations.

[0016] Compared with the prior art, this utility model has the following advantages:

[0017] This utility model structure uses a buoyancy pipe for sand-covering construction. By injecting and draining water into the buoyancy pipe to adjust the buoyancy of the overall structure, the sand-covering is lifted and lowered using buoyancy. The direction is reliably controlled by a bidirectional underwater propulsion device. The sand-covering installation has high precision, and the risk of damage to the pile foundation can be reduced during the construction process. It eliminates the need for large flat barges, extra-large cranes, and special gantry cranes currently used in sand-covering construction. The construction time is short, the risk is low, the cost is low, the installation process has strong resistance to wind and waves, and the construction steps are simple. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the end cap of this utility model;

[0020] Figure 3 This is a schematic diagram of the connection and assembly of the buoyancy pipe and the clamp according to this utility model;

[0021] Figure 4 This is a schematic diagram of the fan-shaped arrangement structure of the buoyancy pipe of this utility model.

[0022] In the diagram: 1. Buoyancy pipe; 2. Clamp; 3. End cap; 4. Plug; 5. Water pump; 6. Drain pipe; 7. Water outlet pipe; 8. Solenoid valve; 9. Water supply pipe; 10. First bidirectional underwater thruster; 11. Second bidirectional underwater thruster; 13. Lifting point; 14. Connecting joint; 15. Air vent pipe. Detailed Implementation

[0023] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0024] like Figures 1-3 As shown, a buoyancy device for installing a sand blanket includes a buoyancy pipe 1, an end cap 3, a water pump 5, a solenoid valve 8, and a vent pipe 15. The buoyancy pipe 1 is sealed by the end cap 3, and the water pump 5, the solenoid valve 8, and the vent pipe 15 are installed inside the end cap 3. The buoyancy is adjusted by adjusting the amount of water in the buoyancy pipe 1.

[0025] Several buoyancy pipes 1 are arranged in parallel or in a fan shape, and the buoyancy pipes 1 are fixed together by clamps 2. Multiple clamps 2 are used to fix and connect the buoyancy pipes 1. The spacing of the clamps 2 can be adjusted according to the length of the buoyancy pipes 1 and the buoyancy requirements.

[0026] One end of the buoyancy pipe 1 is provided with an end cap 3 and the other end is provided with a plug 4. The end cap 3 and the plug 4 seal the buoyancy pipe 1 to prevent water and air leakage. The end cap 3 is provided with space for the installation of a water pump 5, a solenoid valve 8 and a vent pipe 15.

[0027] The water pump 5 is fixedly installed inside the end cover 3. The input end of the water pump 5 is provided with a drain pipe 6 that connects to the buoyancy pipe 1, and the output end of the water pump 5 is provided with a water outlet pipe 7.

[0028] The solenoid valve 8 is fixedly installed inside the end cover 3, and water pipes 9 are respectively provided at both ends of the solenoid valve 8.

[0029] The vent pipe 15 is installed inside the end cap 3. The water pump 5 drains water from the buoyancy pipe 1, and the solenoid valve 8 injects water into the buoyancy pipe 1, thereby realizing the overall rise and fall of the structure. The vent pipe 15 injects air into the buoyancy pipe 1 to avoid negative pressure and facilitate drainage.

[0030] The first bidirectional underwater thruster 10 is located in the middle of the buoyancy pipe 1 at the upper end. The first bidirectional underwater thruster 10 can adjust the vertical position of the device.

[0031] The second bidirectional underwater thruster 11 is located at the end of the buoyancy pipe 1 in the middle. The second bidirectional underwater thruster 11 can adjust the left and right positions of this device.

[0032] Furthermore, the clamp 2 is evenly distributed with lifting points 13, which are used to cooperate with the automatic unhooking device of the sand sheet. After the sand sheet is completely placed in the predetermined position on the seabed, the lifting strap of the sand sheet is detached from the lifting points 13 of the device by the automatic unhooking device.

[0033] Furthermore, the buoyancy pipe 1 is made of plastic material, such as high-density polyethylene (HDPE) or polyvinyl chloride (PVC), which are corrosion-resistant and have a long service life and low maintenance costs.

[0034] Furthermore, one end of the vent pipe 15 is provided with a connecting joint 14, which facilitates the connection of the vent pipe to an external gas supply pipeline.

[0035] Furthermore, the buoyancy pipes 1 are arranged in parallel or fan-shaped patterns, and different array structures are adopted according to different usage requirements, which makes them highly practical.

[0036] Working principle: In use, multiple buoyancy pipes 1 are connected by multiple clamps 2, and lifting points 13 that can cooperate with the automatic sand-removal device are set on the clamps 2. The two ends of the buoyancy pipes 1 are sealed by end caps 3 and plugs 4. A water pump 5, a solenoid valve 8 and a vent pipe 15 are set inside the end caps 3. The buoyancy of the whole device is adjusted by adjusting the water volume in the buoyancy pipes 1. The underwater position of the device is precisely controlled by the first bidirectional underwater thruster 10 and the second bidirectional underwater thruster 11 to achieve accurate installation of the sand.

[0037] It is understood that the above embodiments are merely exemplary implementations used to illustrate the principles of this utility model, and this utility model is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of this utility model, and these modifications and improvements are also considered to be within the protection scope of this utility model.

Claims

1. A buoyancy device for installing sand sheets, characterized in that it comprises: A buoyancy pipe (1) is fixed together by a clamp (2); one end of the buoyancy pipe (1) is provided with an end cap (3) and the other end is provided with a plug (4). Water pump (5), the water pump (5) is fixedly installed inside the end cover (3), the input end of the water pump (5) is provided with a drain pipe (6) that connects to the buoyancy pipe (1), and the output end of the water pump (5) is provided with a water outlet pipe (7). Solenoid valve (8), which is fixedly installed inside end cap (3), and water pipes (9) are provided at both ends of solenoid valve (8). Ventilation pipe (15), which is installed through the end cap (3); The first bidirectional underwater thruster (10) is located in the middle of the upper buoyancy pipe (1). The second bidirectional underwater thruster (11) is located at the end of the buoyancy pipe (1) in the middle.

2. The buoyancy device for installing a sand blanket according to claim 1, characterized in that, The clamp (2) has evenly distributed lifting points (13).

3. The buoyancy device for installing a sand blanket according to claim 1, characterized in that, The buoyancy pipe (1) is made of plastic.

4. The buoyancy device for installing a sand blanket according to claim 1, characterized in that, One end of the vent pipe is provided with a connecting joint (14).

5. A buoyancy device for installing a sand blanket according to claim 1, characterized in that, The buoyancy pipes (1) are arranged in parallel or fan-shaped configurations.