Hydraulic lifting platform for offshore pile splicing operation

Abstract

The utility model discloses a hydraulic lifting platform for offshore pile splicing operation, which comprises an operation platform and a platform base, the operation platform is positioned above the platform base, a scissor lifting device is arranged between the operation platform and the platform base, and a lifting lug is arranged on the platform base. By means of the working platform, the platform base and the scissor lifting device which are matched with one another, a pile splicing platform does not need to be built, construction steps are effectively reduced, the working efficiency of pile splicing is greatly improved, and the platform can be repeatedly used.

Description

Technical Field

[0001] The utility model relates to an auxiliary working platform, in particular to a hydraulic lifting platform used for offshore pile connection operations. Background Art

[0002] Offshore platforms do play a vital role in the modern offshore oil and gas industry. They are not only core facilities for oil and gas exploration, production, processing and transportation, but also an important link between marine resources and the market, and are of great significance to promoting national energy security, economic development and marine environmental protection. Pile foundation is the main form of fixed offshore platform, and pile connection is an indispensable and important process in pile foundation construction. Offshore pile connection refers to connecting the steel piles that have been driven into the seabed with the steel piles that are about to be driven in. This operation is crucial to ensure the stability and safety of offshore platforms.

[0003] Piles are usually connected at sea by welding or casing connection. In either case, a pile connection platform is needed to help workers with construction. Conventional pile connection platforms are built using scaffolding, which has a complex structure, low safety, and once built, the construction height is limited. It is also time-consuming and labor-intensive to dismantle after construction, which needs to be improved. Utility Model Content

[0004] The purpose of the utility model is to provide a hydraulic lifting platform for offshore pile connection operations, which solves the problems of heavy workload and low reusability in the prior art in building a pile connection platform.

[0005] To achieve the purpose of the utility model, the utility model comprises: a working platform and a platform base, wherein the working platform is located above the platform base, a scissors lifting device is arranged between the working platform and the platform base, and a lifting lug is arranged on the platform base.

[0006] The scissor lifting device comprises: two groups of lifting arms connected in series up and down, the lifting arms are composed of two groups of parallel X-shaped structural arms, the X-shaped structural arms are composed of two hinged connecting rods, a lifting drive device is arranged between the two groups of lifting arms, one end of the lifting arm located at the lower part is hinged to the platform base, the other end of the lifting arm located at the lower part is connected to a roller, and the roller slides on the base track below it, one end of the lifting arm located at the upper part is hinged to the bottom of the working platform, the other end of the lifting arm located at the upper part is connected to another roller, and the other roller slides on the working platform track above it.

[0007] A clamping device is provided at the bottom of the working platform, and the clamping device includes: a clamping block, one side of the clamping block is connected to a clamping hydraulic cylinder, the clamping hydraulic cylinder is connected to a fixed seat, sliders are provided on both sides of the clamping block, the sliders are located in the clamping guide rails, and the clamping guide rails and the fixed seat are connected to the clamping bracket.

[0008] The bottom of the lifting ear is connected to the lifting ear seat, and an opening is arranged on the working platform above the lifting ear. When the scissors lifting device falls, the lifting ear extends out of the opening.

[0009] A fence is arranged around the working platform.

[0010] The working platform and the platform base are both provided with working holes for the pile legs to pass through.

[0011] The utility model uses a working platform, a platform base, and a scissor lifting device that cooperate with each other, so there is no need to build a pile connection platform, which effectively reduces the construction steps and greatly improves the work efficiency of pile connection. In addition, the platform of the utility model can be reused repeatedly. Secondly, adding fences further ensures construction safety. Thirdly, the working platform is equipped with a clamping device to prevent the working platform from shaking during the pile connection operation, ensuring the safety of the operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a three-dimensional diagram of the utility model when it is raised. Figure 2 This is a three-dimensional diagram of the utility model when it falls. Figure 3 This is a three-dimensional diagram of the platform base of the utility model without the scissor lifting device. Figure 4 This is the front view of the platform base and the scissor lifting device of the utility model. Figure 5 for Figure 4 A stereogram of Figure 6 This is the main view of the utility model working platform. Figure 7 This is the front view of the clamping device of the utility model. Figure 8 for Figure 7 Left view of .

[0013] In the figure: 1 platform base, 2 scissor lifting device, 3 working platform, 4 lifting lug, 5 base track, 6 lifting lug seat, 7 clamping block, 8 connecting rod, 9 lifting drive device, 10 roller, 11 clamping hydraulic cylinder, 12 fixed seat, 13 crossbeam, 14 fence, 15 clamping bracket, 16 slider. DETAILED DESCRIPTION

[0014] like Figure 1 , Figure 2 and Figure 3 The utility model shown comprises: a working platform 3 and a platform base 1, both of which are provided with working holes for pile legs to pass through, and a fence 14 is provided around the working platform. The working platform is located above the platform base, and a scissor lifting device 2 is provided between the working platform and the platform base, and a lifting ear seat 6 is provided on the platform base 1, and the top of the lifting ear seat 6 is connected to the lifting ear 4, and an opening is provided on the working platform 3 above the lifting ear 4. When the scissor lifting device falls, the lifting ear 4 extends out of the opening, and a clamping device is provided at the bottom of the working platform 3.

[0015] like Figure 4 and Figure 5 The scissor lift device 2 shown includes: two sets of lifting arms connected in series from top to bottom, the lifting arms are composed of two sets of parallel X-shaped structural arms, the X-shaped structural arms are composed of two hinged connecting rods 8, and the two sets of parallel X-shaped structural arms are connected together through a crossbeam 13. A lifting drive device 9 is provided between the two sets of lifting arms, and the lifting drive device 9 is a lifting hydraulic cylinder, and the lifting device is connected to the crossbeam 13. One end of the lifting arm located at the lower part is hinged to the platform base 1, and the other end of the lifting arm located at the lower part is connected to a roller 10, and the roller 10 slides on the base track 5 below it, and one end of the lifting arm located at the upper part is hinged to the bottom of the working platform 3, and the other end of the lifting arm located at the upper part is connected to another roller 10, and the other roller 10 slides on the working platform track above it.

[0016] like Figure 6 , Figure 7 and Figure 8 The clamping device shown includes: a clamping block 7, one side of the clamping block 7 is connected to a clamping hydraulic cylinder 11, the clamping hydraulic cylinder 11 is connected to a fixing seat 12, sliders 16 are provided on both sides of the clamping block 7, the sliders 16 are located in the clamping guide rail, the clamping guide rail 13 and the fixing seat 12 are connected to a clamping bracket 15. The clamping bracket 15 is connected to the bottom of the working platform 3.

[0017] like Figure 1 and Figure 2 When the utility model shown is used, the working platform is first lowered to the lowest position, a lifting chain is installed on the lifting lug, and the entire utility model is hoisted to the steel pile leg fixing point of the pile to be connected by a crane, and then the platform base and the pile leg are fixed. The operator goes on the working platform, and then starts the scissor lifting device. After the working platform 3 rises to a predetermined height, the clamping devices on both sides of the working platform hold the outer wall of the pile leg to prevent the working platform from swinging, and then the pile connection operation is started again. After the pile connection operation is completed, the working platform 3 is lowered to the platform base 1 by the scissor lifting device, and then the lifting chain is installed on the platform lifting lug 6. After the lifting chain is hung on the crane, the personnel on the working platform 3 are evacuated, and the platform is hoisted to the next pile connection position. The aforementioned steps are repeated until the pile connection operation is completed.

[0018] The above-mentioned embodiments only express several implementation methods of the utility model, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A hydraulic lifting platform for offshore pile connection operations, comprising: A working platform and a platform base, wherein the working platform is located above the platform base, and is characterized in that a scissors lifting device is provided between the working platform and the platform base, and a lifting lug is provided on the platform base, and the scissors lifting device comprises: two groups of lifting arms connected in series up and down, the lifting arms are composed of two groups of parallel X-shaped structural arms, and the X-shaped structural arms are composed of two hinged connecting rods, and a lifting drive device is provided between the two groups of lifting arms, one end of the lifting arm located at the lower part is hinged to the platform base, and the other end of the lifting arm located at the lower part is connected to a roller, and the roller slides on the base track below it, and one end of the lifting arm located at the upper part is hinged to the bottom of the working platform, and the other end of the lifting arm located at the upper part is connected to another roller, and the other roller slides on the working platform track above it.

2. A hydraulic lifting platform for offshore pile connection operation according to claim 1, characterized in that: A clamping device is provided at the bottom of the working platform, and the clamping device includes: a clamping block, one side of the clamping block is connected to a clamping hydraulic cylinder, the clamping hydraulic cylinder is connected to a fixed seat, sliders are provided on both sides of the clamping block, the sliders are located in the clamping guide rails, and the clamping guide rails and the fixed seat are connected to the clamping bracket.

3. The hydraulic lifting platform for offshore pile connection operation according to claim 1, characterized in that: The bottom of the lifting ear is connected to the lifting ear seat, and an opening is arranged on the working platform above the lifting ear. When the scissors lifting device falls, the lifting ear extends out of the opening.

4. A hydraulic lifting platform for offshore pile connection operations according to any one of claims 1 to 3, characterized in that: A fence is arranged around the working platform.

5. A hydraulic lifting platform for offshore pile connection operation according to claim 4, characterized in that: The working platform and the platform base are both provided with working holes for the pile legs to pass through.

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