Simple hoisting platform for operation in narrow water area

By designing a simple hoisting platform consisting of a pontoon, an H-shaped steel frame, and a hand-operated hoist, the problem of hoisting operations in narrow waterways was solved, achieving safe and effective construction results.

CN224117480UActive Publication Date: 2026-04-14TIANJIN COASTAL ZONE ENG
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TIANJIN COASTAL ZONE ENG
Filing Date
2025-06-10
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

In narrow waterways, existing equipment is insufficient to meet the hoisting requirements of crane vessels, making it difficult to install anchor blocks in the water intake channel.

Method used

Design a simple lifting platform including pontoons, H-shaped steel frames, steel beams, and hand-operated hoists. The pontoons are steel structures filled with polyurethane foam and are positioned using small vessels to ensure the platform's construction safety in narrow waters.

Benefits of technology

It enabled safe and efficient hoisting operations in narrow waterways, solved the problem of anchor block installation, and ensured the safety of the platform and the operators.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a simple hoisting platform for operation in narrow water area, including buoyancy tank, H-shaped steel frame, girder and chain block, two buoyancy tank are arranged oppositely and through the H-shaped steel frame between the two buoyancy tank, the H-shaped steel frame is arranged above the buoyancy tank, the girder is arranged on the top of the H-shaped steel frame, and the chain block is arranged on the girder. And a chain block for realizing a hoisting function is arranged on the steel beam. The hoisting platform designed by the utility model is simple in structure, and can be towed by a small ship to position the platform, so that hoisting construction on a narrow water area is realized, the problem that an anchoring block body in an existing water taking open channel is difficult to mount is solved, and the floating box is filled with the polyurethane foaming body, so that the floating box is convenient to mount and dismount. The potential safety hazard of water leakage of the buoyancy tank is avoided, and the protective handrails are mounted on the periphery of the top of the buoyancy tank, so that the safety of workers on the platform is ensured.
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Description

Technical Field

[0001] This utility model relates to the technical field of lifting equipment for water transport, and in particular to a simple lifting platform for operation in narrow waters. Background Technology

[0002] In recent years, nuclear power plants (thermal power plants) in my country have reported a number of operational incidents caused by marine organisms or debris clogging the water intake system.

[0003] To ensure the safe operation of the cooling source, several power plants have added debris interception, collection, and suction equipment to their water intake channels. Most of the new equipment is fixed using underwater concrete blocks. However, the narrowness of the waterway does not meet the requirements for construction operations by crane vessels.

[0004] Therefore, a simple lifting platform was designed to enable lifting operations in narrow waterways. Utility Model Content

[0005] In view of the above-mentioned technical problems, this utility model provides a simple hoisting platform for operation in narrow waters. The overall structure is simple and it enables hoisting operations in narrow waters, solving the problem that anchor blocks are difficult to install in open water intake channels.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows:

[0007] A simple lifting platform for operation in narrow waters is characterized by comprising pontoons, an H-beam steel frame, steel beams, and a hand-operated hoist. Two pontoons are arranged opposite each other and connected by the H-beam steel frame. The H-beam steel frame is positioned above the pontoons, and a steel beam is mounted on top of the H-beam steel frame. A hand-operated hoist for lifting is mounted on the steel beam.

[0008] Furthermore, the pontoon is made of steel.

[0009] Furthermore, the pontoon is filled with polyurethane foam, which ensures the safety of the lifting platform and avoids the safety hazard of water leakage.

[0010] Furthermore, protective railings are installed around the top perimeter of the pontoon to ensure the safety of personnel working on the platform.

[0011] Furthermore, the size of the pontoon can be determined according to the heavy load required for hoisting, to meet the needs of different working conditions.

[0012] The beneficial effects of this utility model are:

[0013] The hoisting platform designed in this utility model consists of a steel pontoon that can float on the water, a steel frame, and a hand-operated hoist with hoisting function. It is not only simple in structure, but can also be positioned by towing with a small boat, thereby enabling hoisting operations in narrow waters and solving the problem that anchor blocks are difficult to install in open water intake channels.

[0014] The platform designed in this utility model has a floating box, which is filled with polyurethane foam to avoid the safety hazard of water leakage. Protective railings are installed on the outer perimeter of the top of the floating box to ensure the safety of the staff on the platform. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a simple hoisting platform for operation in narrow waters according to the present invention;

[0016] Figure 2 This is a schematic diagram of the AA structure of a simple hoisting platform for operation in narrow waters according to the present invention;

[0017] Figure 3 This is a schematic diagram of the BB structure of a simple hoisting platform for operation in narrow waters according to the present invention;

[0018] As shown in the figure: 100. Water surface, 1. Floating box, 11. Railing, 2. H-shaped steel frame, 3. Steel beam, 4. Hand chain hoist. Detailed Implementation

[0019] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0022] Example 1

[0023] As shown in the figure, two pontoons 1 are arranged opposite each other and connected by an H-shaped steel frame 2. The H-shaped steel frame 2 is set above the pontoons 1. The pontoons 1 are made of steel structure and filled with polyurethane foam to ensure the safety of the lifting platform and avoid the safety hazard of water leakage from the pontoons 1.

[0024] like Figure 2 and 3 The top of the H-shaped steel frame 2 is equipped with a steel beam 3, and a hand-operated hoist 4 is installed on the steel beam 3 to enable hoisting. A protective railing 11 is installed on the outer perimeter above the floating box 1 to ensure the safety of personnel working on the top of the platform.

[0025] Example 2

[0026] The lifting platform designed in this utility model first determines the size of the pontoon 1 according to the lifting load requirements, then welds it with steel plates, and fills the inner cavity of the pontoon with polyurethane foam to prevent the pontoon from leaking.

[0027] After the two pontoons 1 are made, they are connected together by an H-shaped steel frame 2, and a steel beam 3 is installed on the top of the H-shaped steel frame 2. The hoisting hand chain hoist 4 is then installed on the steel beam 3.

[0028] The completed lifting platform can be lowered into the water using a tire crane or crawler crane, and positioned by a small vessel to enable lifting operations in narrow waterways.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. The various components mentioned in this utility model are common technologies in the existing field. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A simple hoisting platform for operations in narrow waters, characterized in that... The system includes pontoons, an H-beam steel frame, steel beams, and a hand-operated hoist. Two pontoons are arranged opposite each other and connected by the H-beam steel frame. The H-beam steel frame is located above the pontoons, and a steel beam is provided on the top of the H-beam steel frame. A hand-operated hoist is mounted on the steel beam to perform the hoisting function.

2. A simple hoisting platform for operation in narrow waters according to claim 1, characterized in that... The pontoon is made of steel.

3. A simple hoisting platform for operation in narrow waters according to claim 1, characterized in that... The pontoon is filled with polyurethane foam.

4. A simple hoisting platform for operation in narrow waters according to claim 1, characterized in that... The outer perimeter of the pontoon is equipped with protective railings.