Scaffold

Abstract

The utility model discloses a scaffold, and belongs to auxiliary equipment for installation and construction. The scaffold comprises a base, the base is connected with a first supporting piece, the first supporting piece and a second supporting piece are movably arranged, a control mechanism is arranged, and positioning holes and plug pins are further arranged and used for relative locking of the first supporting piece and the second supporting piece. A support is installed on the second supporting piece, and combination of a plurality of devices is achieved through the installation support. According to the base of the scaffold, lifting control can be achieved, construction of the plane where the base is located cannot be hindered, and operation is convenient.

Description

Technical Field

[0001] The utility model belongs to the manufacturing technology of natural gas transport warehouse, in particular to a scaffold, which belongs to an auxiliary device for installing an insulation box of an LNG ship. Background Art

[0002] Scaffolding is a working platform set up to ensure the smooth progress of each construction process. According to the location of the scaffolding, it can be divided into external scaffolding and internal scaffolding; according to different materials, it can be divided into wooden scaffolding, bamboo scaffolding, and steel pipe scaffolding; according to the structural form, it can be divided into vertical pole scaffolding, bridge scaffolding, door scaffolding, suspended scaffolding, hanging scaffolding, cantilever scaffolding, and climbing scaffolding. However, in general, traditional scaffolding generally adopts a fixed construction mode. When carrying out construction in certain limited spaces, and the scaffolding occupies the entire space, there is a situation where the supporting legs hinder the construction, causing construction inconvenience. Utility Model Content

[0003] The utility model aims to provide a scaffold, the base of which can be lifted and lowered to avoid affecting the construction.

[0004] Technical solution: A scaffolding comprises a base, the base is connected to a first support member, the first support member and the second support member are movably arranged, a control mechanism is provided, and a positioning hole and a latch are provided for relative locking of the first support member and the second support member;

[0005] A bracket is installed on the second supporting member, and a combination of several devices is achieved by installing the bracket.

[0006] Furthermore, a winch is fixed on the second support member, and the winch is connected to the first support member through a steel cable, so as to link the lifting and lowering of the base through the first support member.

[0007] Furthermore, the top of the second support member includes a fixed pulley, and the steel cable is connected to the first support member after passing through the fixed pulley.

[0008] In the above solution, the first support member and the second support member are embedded in each other, including placing the first support member inside the second support member.

[0009] The first support member and the second support member are movably arranged via a groove, and the first support member moves in a groove provided on the second support member.

[0010] The base is connected to one end of the first support member via a screw rod, and the screw rod includes a rotating handle for adjusting the distance between the base and the end of the first support member.

[0011] The winch comprises a large gear and a small gear, the small gear is driven by a handle, and the large gear is used for winding the steel cable.

[0012] The second support member includes a mounting ear, and a reinforcement member is arranged through the mounting ear.

[0013] Furthermore, the top of the second support member includes a connecting member.

[0014] Furthermore, the first support member or the second support member includes a height ruler or a level ruler.

[0015] Beneficial effect: Compared with the prior art, the scaffolding described in the utility model can be combined to meet the construction needs of different scenes and spaces, and the base and supporting legs of the scaffolding can be extended and retracted without causing any problems in the construction plan, and the operation is simpler, more convenient and quicker. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the composition structure of the scaffolding described in the utility model;

[0017] Figure 2 It is a structural schematic diagram of the winch in the utility model;

[0018] Figure 3 It is a structural schematic diagram of the second supporting member in the utility model;

[0019] Figure 4 It is a structural schematic diagram of the first supporting member in the utility model. DETAILED DESCRIPTION

[0020] In order to further illustrate the technical solution disclosed by the utility model, a specific introduction is given below in combination with the drawings in the specification and the application scenarios of the LNG ship in the laying construction process of the insulation box and the Invar steel.

[0021] LNG ship refers to a ship that transports natural gas. Its cabin requires a special insulation compartment. Two layers of thermal insulation should be laid inside the insulation compartment to ensure that the compartment can reach an ultra-low temperature environment of minus 163 degrees Celsius. Each layer is composed of thick insulation box material plus 0.7 mm Invar steel film. The material of the insulation box is mostly imported special wood. This wood is firm, durable and not easy to deform. The box is filled with powdered perlite, which has a good thermal insulation effect. The maximum deformation rate of each insulation box must be less than 0.06 mm per meter, which is equivalent to the diameter of a hair. The 0.7 mm thick Invar steel wrapped around the wooden insulation box is a corrosion-resistant material that can effectively isolate natural gas from the outside world.

[0022] For example, in the construction plan recorded in the "Study on the Installation of Benchmark Wedge Blocks for Insulation Boxes of LNG Ships", during the construction of the insulation box and the invar steel, there will be many scaffolding support legs on the cargo hold floor, which will hinder the installation of the insulation box and the measurement of the three-meter ruler. During the construction process, the base of the scaffolding needs to be lifted, which is time-consuming and labor-intensive. Therefore, the scaffolding described in the utility model can improve work efficiency and reduce labor costs, and the base can be lifted quickly and conveniently.

[0023] Combination Figure 1-Figure 4 As shown, the scaffolding described in the utility model is composed of a first support member 3 and a second support member 2 to form a support leg of the scaffolding. The second support member 2 can be designed to be hollow. The first support member 3 is placed in the second support member 2 and can be extended. The lower end of the first support member 2 is connected to a base 4, which can be connected by a screw 7. The screw 7 is provided with a handle 701 for rotating, which can achieve fine adjustment of the height of the base 4 contacting the warehouse ground after the first support member 3 and the second support member 2 are fixed. The upper end of the first support member 3 is connected to a steel cable 6, which also passes through the fixed pulley at the top of the second support member 2 and returns to the winch 5. The winch 5 is fixed on the second support member 2 and is provided with a handle 503. The handle 503 drives the small gear 502 to rotate, and the small gear 502 drives the large gear 501 to rotate. The large gear 501 is connected to the steel cable 6 to control the zoom. Of course, in order to avoid reverse operation after letting go, a brake pin can be provided. After the first support member 3 and the second support member 2 are controlled by the winch 5 to reach corresponding positions, the positioning holes 301 on the first support member 3 and the second support member 2 are opposite to each other, and then the latch is inserted to fix and lock them.

[0024] It is to be supplemented here that in some other embodiments, including replacing the control mechanism (hand winch) with electric, etc., conventional choices can be made according to the actual construction. In this embodiment, considering the convenience such as cost, hand cranking can be used. For the relative sliding of the first support member 3 and the second support member 2, a groove for the sliding of the first support member 3 can also be provided in the second support member 2. The first support member 3 is preferably located in the groove, and the second support member 2 wraps it. Further considerations, in order to avoid the occurrence of offset during the support process, the edge of the groove includes a limit component to prevent the first support member 3 from sliding out of the groove.

[0025] The following is an introduction to the scaffolding assembly described in the utility model. Figure 1As shown, the mounting frame 1 is located on the right side of the second support member 2. Of course, it can also be symmetrically arranged on both sides of the second support member 2. Then, a level ruler 9 or an infrared level meter can be arranged at the location of the winch 5 to align the entire scaffolding horizontally and improve the installation progress. Based on the second support member 2, the mounting frame 1, and the mounting ears 201, the space construction at the same height position can be achieved through screws, bolts, etc., that is, it can be connected with the adjacent second support member 2. Its height can be further increased by the connecting member 8 on the top of the second support member 2, thereby forming a whole, which is convenient for the construction of the entire space (LNG ship insulation tank).

[0026] For the construction of LNG ship insulation tanks, the base can be lifted up by a winch to remove obstructions, and then lowered after the construction is completed to support the scaffolding again.

Claims

1. A scaffold, characterized in that: The invention comprises a base (4), the base (4) being connected to a first support member (3), the first support member (3) and the second support member (2) being movably arranged, comprising a control mechanism, and also comprising a positioning hole and a latch for relative locking of the first support member (3) and the second support member (2); A bracket (1) is installed on the second support member (2), and a combination of a plurality of scaffolds is achieved by installing the bracket (1).

2. The scaffold according to claim 1, characterized in that: A winch (5) is fixed on the second support member (2); the winch (5) is connected to the first support member (3) via a steel cable (6), and the base (4) is lifted and lowered in linkage with the first support member (3).

3. The scaffold according to claim 2, characterized in that: The top of the second support member (2) includes a fixed pulley, and the steel cable (6) is connected to the first support member (3) after passing through the fixed pulley.

4. The scaffold according to claim 1, characterized in that: The first support member (3) and the second support member (2) are arranged to be embedded inside and outside, including placing the first support member (3) inside the second support member (2).

5. The scaffold according to claim 1, characterized in that: The first support member (3) and the second support member (2) are movably arranged via a groove, and the first support member (3) moves within a groove provided on the second support member (2).

6. The scaffold according to claim 1, characterized in that: The base (4) is connected to one end of the first support member (3) via a screw rod (7), and the screw rod (7) includes a rotating handle for adjusting the distance between the base (4) and the end of the first support member (3).

7. The scaffold according to claim 2, characterized in that: The winch (5) comprises a large gear (501) and a small gear (502), wherein the small gear (502) is driven by a handle (503), and the large gear (501) is used to wind the steel cable (6).

8. The scaffold according to claim 1, characterized in that: The second support member (2) includes a mounting ear (201) provided thereon, and a reinforcement member is provided through the mounting ear (201).

9. The scaffold according to claim 1, characterized in that: The top of the second support member (2) includes a connecting member (8).

10. The scaffold according to claim 1, characterized in that: The first support member (3) or the second support member (2) includes a height gauge or a level gauge.

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