Rapid fixing tool for steel springboard

Abstract

The utility model discloses a quick fixing tool for a steel springboard, which is characterized in that the fixing tool comprises a stop sleeve (3) welded on a bottom plate (2) of the steel springboard (1), the stop sleeve (3) and a threaded sleeve (5) arranged on a cross beam (4) are coaxially arranged, a bolt (6) is movably connected in the stop sleeve (3), and the threaded sleeve (5) and the bolt (6) are coaxially arranged. The top end face of the steel springboard (1) is provided with an inner threaded hole, the top end face of the steel springboard (1) is provided with a bolt (6), the bolt (6) is in threaded connection with the inner threaded hole of the threaded sleeve (5), the top end face of the steel springboard (1) is provided with an operation hole (7), the operation hole (7) is located over the stop sleeve (3), the hole diameter of the operation hole (7) and the hole diameter of the stop sleeve (3) are both smaller than the maximum outer diameter of the bolt (6), the length of the bolt (6) is L1, the distance between the top end face of the stop sleeve (3) and the top plate (8) is L2, and L1 is larger than L2.

Description

Technical Field

[0001] The utility model relates to a tooling structure, in particular to a steel springboard quick fixing tooling. Background Art

[0002] On the LNG ship installation platform or the scaffolding in the construction industry, the steel gangway is a commonly used structure to provide a working plane, and its laying and disassembly are aerial operations. The steel gangway is fixed to the steel structure beam by either winding steel wire or using a special clamp. The method of fixing with steel wire winding is not easy to locate, and the steel wire is difficult to recycle, resulting in waste. In addition, the fastening and disassembly process is prone to falling and injuring the structure or personnel below. The method of fixing with a special clamp requires a suitable installation space, and because there are many types of beams with different cross-sectional shapes to match, it is inconvenient to install and store, and there is also a risk of falling. In some special fields (such as the construction of the LNG ship installation platform), if the parts fall, the internal structure of the hull may be damaged, and the traditional fixing methods have certain safety hazards.

[0003] Therefore, a method or device capable of solving the above problems is now needed. Summary of the invention

[0004] The utility model aims to solve the above-mentioned deficiencies in the prior art and proposes a fixing tool which has a simple structure, ingenious design, reasonable layout, can quickly and conveniently install a steel springboard and can ensure that no parts fall off.

[0005] The technical solution of the utility model is: a fast fixing tool for a steel springboard, characterized in that: the fixing tool comprises a stop sleeve 3 welded on a bottom plate 2 of a steel springboard 1, the stop sleeve 3 is coaxially arranged with a threaded sleeve 5 arranged on a crossbeam 4, a bolt 6 is movably connected in the stop sleeve 3, and the bolt 6 is threadedly connected with the internal threaded hole of the threaded sleeve 5, an operating hole 7 is opened on the top surface of the steel springboard 1, and the operating hole 7 is located directly above the stop sleeve 3,

[0006] The diameters of the operating hole 7 and the stop sleeve 3 are both smaller than the maximum outer diameter of the bolt 6.

[0007] The length of the bolt 6 is L1, the distance between the top end surface of the stop sleeve 3 and the top plate 8 is L2, and L1>L2.

[0008] Compared with the prior art, the utility model has the following advantages:

[0009] This type of steel springboard fast fixing tool has a simple structure, ingenious design and reasonable layout. It aims at the shortcomings of the traditional steel springboard fixing connection method and designs a special structure tool. It welds a threaded sleeve on the crossbeam, welds a stop sleeve in the steel springboard, and then uses the bolts sleeved in the stop sleeve to connect in the threaded sleeve, so as to achieve the fixed connection between the steel springboard and the crossbeam; this fixing operation is convenient and fast, and its biggest feature is that the bolts cannot be disengaged from the stop sleeve (there is not enough space), so it can be ensured that no scattered parts will fall during the installation process, which is suitable for the installation of steel springboards under special working conditions such as LNG hull construction. And its manufacturing process is simple and the manufacturing cost is low, so it can be said that it has many advantages, especially suitable for promotion and application in this field, and its market prospects are very broad. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a cross-sectional view (front view direction) of an embodiment of the utility model.

[0011] Figure 2 It is a cross-sectional view (top view) of an embodiment of the utility model. DETAILED DESCRIPTION

[0012] The specific implementation of the present utility model will be described below in conjunction with the accompanying drawings. Figure 1 , Figure 2 As shown: a steel springboard quick fixing tool, which includes a stop sleeve 3 welded on the bottom plate 2 of the steel springboard 1, the stop sleeve 3 and the threaded sleeve 5 arranged on the crossbeam 4 are coaxially arranged, a bolt 6 is movably connected in the stop sleeve 3, and the bolt 6 is threadedly connected with the internal threaded hole of the threaded sleeve 5, an operating hole 7 is opened on the top surface of the steel springboard 1, and the operating hole 7 is located directly above the stop sleeve 3,

[0013] The diameters of the operating hole 7 and the stop sleeve 3 are both smaller than the maximum outer diameter of the bolt 6.

[0014] The length of the bolt 6 is L1, the distance between the top end surface of the stop sleeve 3 and the top plate 8 is L2, and L1>L2.

[0015] The working process of the steel springboard quick fixing tool of the embodiment of the utility model is as follows: the bolt 6 is pre-placed into the stop sleeve 3, and then the stop sleeve 3 is welded to the bottom plate 2. During welding, it is necessary to ensure that the stop sleeve 3 is located directly below the operating hole 7 (a stop sleeve 3 must be welded below each operating hole 7);

[0016] When installing the steel springboard 1 on the crossbeam 4, insert the hexagonal wrench through the operating hole 7, insert the end of the hexagonal wrench into the hexagonal hole at the end of the bolt 6, use the hexagonal wrench to drive the bolt 6 to rotate, and the bolt 6 is screwed into the threaded sleeve 5 below and threadedly connected with it; when the bottom end surface of the end of the bolt 6 is pressed against the top end surface of the stop sleeve 3, the movement stops, and at this time the steel springboard 1 and the crossbeam 4 are connected into an integrated structure by multiple bolts 6;

[0017] Since the outer diameter of the bolt 6 is larger than the hole diameters of the operating hole 7 and the stop sleeve 3, and the length of the bolt 6 is larger than the distance between the stop sleeve 3 and the top plate 8, the bolt 6 can neither fall out of the operating hole 7 nor fall out of the stop sleeve 3. This structure can ensure that the bolt 6 will not separate from or fall off the steel gangway under any circumstances, thereby meeting special requirements under certain conditions (such as the production and processing of LNG ships).

Claims

1. A steel springboard quick fixing tool, characterized by: The fixing fixture comprises a stop sleeve (3) welded to the bottom plate (2) of the steel springboard (1), the stop sleeve (3) being coaxially arranged with a threaded sleeve (5) arranged on the crossbeam (4), a bolt (6) being movably connected in the stop sleeve (3), and the bolt (6) being threadedly connected to the internal threaded hole of the threaded sleeve (5), an operating hole (7) being opened on the top surface of the steel springboard (1), and the operating hole (7) being located directly above the stop sleeve (3), The diameters of the operating hole (7) and the stop sleeve (3) are both smaller than the maximum outer diameter of the bolt (6). The length of the bolt (6) is L1, the distance between the top end surface of the stop sleeve (3) and the top plate (8) is L2, and L1>L2.

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