A fall protection triangular profile structure and method of installation

Abstract

The application provides a fall-preventing triangular profile structure and a mounting method. The triangular profile structure comprises a triangular cross-section structure formed by sequentially connecting a first side 1, a second side 2 and a third side 3; an angle alpha between the second side 2 and the third side 3 is 90-120 degrees; an angle beta between the first side 1 and the second side 2 is 30-60 degrees; the length of the third side 3 is less than the length of the first side 1; and an anti-skid structure is arranged on the bottom surface of the third side 3. The technical scheme can simplify the construction process, improve the operation flexibility, and save the construction cost.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of ship safety protection, and particularly relates to a three-edged profile structure for preventing falling and a mounting method. BACKGROUND

[0002] At present, in order to control the structural weight of a ship, a waist-round opening is arranged in a non-powerful component of a main hull, a platform, a rib plate and the like to reduce the structural weight. Such an opening for reducing the weight of a ship without other influences is referred to as a lightening hole. However, the lightening hole is arranged at a horizontal platform in some positions, which are used as a channel for construction and subsequent maintenance. A profile is usually arranged on the lightening hole of the channel to prevent personnel from falling into the lightening hole, and the profile is referred to as a falling-preventing square steel.

[0003] The falling-preventing square steel on the market is all square-shaped, and is arranged along the longitudinal direction of the lightening hole during construction and laying. The falling-preventing square steel is mainly arranged in two ways, one of which is perpendicular to the platform, and the other of which is inclined by 45° to the platform. Since the falling-preventing square steel is arranged in a ballast tank, and also needs to have an anti-skid effect, the tank is long-term humid, and mud is attached to the platform. The first installation method is not very acceptable in actual use, because it is parallel to the platform, and the anti-skid effect is poor when the actual contact with the shoe sole is a parallel surface. The second installation method is inclined by 45°, and since the square steel itself is relatively small, the welding space is small when it is installed by 45°, and the construction is difficult. However, the contact surface with the shoe sole is a point plane in actual use, and the effect is good.

[0004] Therefore, how to provide a three-edged profile structure for preventing falling and a mounting method, which can simplify the construction process, improve the operation flexibility, save the construction cost, has become a technical problem to be solved. SUMMARY

[0005] The embodiment of the present application provides a three-edged profile structure for preventing falling and a mounting method, which can simplify the construction process, improve the operation flexibility, and save the construction cost.

[0006] In one embodiment of the present application, a three-edged profile structure for preventing falling includes a three-edged cross-section structure formed by a first edge 1, a second edge 2 and a third edge 3 connected in sequence, an included angle a between the second edge 2 and the third edge 3 is 90°-120°, an included angle β between the first edge 1 and the second edge 2 is 30°-60°, a length of the third edge 3 is less than a length of the first edge 1, and an anti-skid structure is arranged on a bottom surface of the third edge 3.

[0007] Further, the included angle a is 90°, and the included angle β is 45°.

[0008] Further, the anti-skid structure comprises wave-shaped anti-skid lines arranged along the length direction of the third edge 3 at intervals, the interval between adjacent anti-skid lines is 5 mm-8 mm, and the line height is 1.5 mm-2 mm.

[0009] Further, the profile structure is made of galvanized steel or stainless steel material, and a fillet structure with a fillet radius of 2 mm-3 mm is arranged at the connection of each edge of the profile structure.

[0010] In another embodiment of the present application, a mounting method of a three-edged profile structure for preventing falling is based on any one of the above-mentioned three-edged profile structures for preventing falling, and the mounting method comprises the following steps:

[0011] The second edge 2 and the third edge 3 are perpendicular and horizontal to the surface of the structure platform respectively, and the end of the second edge 2 in contact with the structure platform is provided with a welded fixing part 4.

[0012] Further, the welded flat surface extending 8 mm-10 mm from the bottom of the second edge 2 is set as the welded fixing part, and a double fillet weld is used for welding, the weld leg size is not less than 4 mm, and the weld length is not less than 80% of the length of the profile edge.

[0013] The present application has the following beneficial effects:

[0014] As can be seen from the above scheme, the present application provides a three-edged profile structure for preventing falling and a mounting method thereof, the three-edged profile structure comprises a three-edged cross-section structure formed by sequentially connecting a first edge 1, a second edge 2 and a third edge 3, the included angle α between the second edge 2 and the third edge 3 is 90°-120°, the included angle β between the first edge 1 and the second edge 2 is 30°-60°, the length of the third edge 3 is less than the length of the first edge 1, and the bottom surface of the third edge 3 is provided with an anti-skid structure. The technical scheme of the present application can simplify the construction process, improve the operation flexibility, and save the construction cost. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 Fig. 1 is a schematic view of a three-edged profile structure for preventing falling according to an embodiment of the present application;

[0016] In the figure, 1 is a first edge, 2 is a second edge, and 3 is a third edge. DETAILED DESCRIPTION

[0017] In order to make the objects, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0018] At present, the profile structure is installed according to an inclination of 45°. The included angle of installation has a space of 45°. Since the square steel is small, 22*22mm, the actual welding space is small, welding is difficult, and the welding quality is difficult to guarantee. Moreover, since the square steel is long-term handled in the ballast tank and the humid area, the long-term corrosion is higher in welding requirement. However, when the shoe sole contacts, the upper end is point contact, which can play a better anti-skid effect.

[0019] The profile structure is installed according to a verticality of 90°. When installed, the structure platform is vertical, the welding space and the line of sight are better, and the welding quality can be guaranteed. However, since the ballast tank is long-term drained and discharged in the tank, there are inevitably silt, marine organisms and other corrosion attachments. When the personnel pass, the shoe sole contacts the anti-falling square steel as a surface and surface contact surface, and the anti-skid effect is poor.

[0020] As shown in Figure 1 , Figure 1 It is a schematic diagram of a three-edged profile structure for preventing falling.

[0021] In the figure, the three-edged profile structure for preventing falling includes a three-edged cross-section structure formed by sequentially connecting a first edge 1, a second edge 2 and a third edge 3; an included angle α between the second edge 2 and the third edge 3 is 90°-120°, an included angle β between the first edge 1 and the second edge 2 is 30°-60°; the length of the third edge 3 is less than the length of the first edge 1, and the bottom surface of the third edge 3 is provided with an anti-skid structure.

[0022] In an embodiment of the present application, the included angle α is preferably 90°, and the included angle β is preferably 45°.

[0023] It can be understood that in other implementation manners of the embodiment of the present application, the included angle α and the included angle β can be adjusted according to design requirements, and the specific included angle is not specifically limited here.

[0024] In another embodiment of the present application, the anti-skid structure includes: wave-shaped anti-skid lines arranged at intervals along the length direction of the third edge 3, the interval between adjacent anti-skid lines is 5mm-8mm, and the line height is 1.5mm-2mm.

[0025] In another embodiment of the present application, the profile structure is made of galvanized steel or stainless steel material, and a fillet structure is arranged at the connection of each side of the profile structure, and the fillet radius of the fillet structure is 2mm-3mm.

[0026] In another embodiment of the present application, a mounting method of the anti-falling three-edge profile structure is based on any one of the anti-falling three-edge profile structures, and the mounting method comprises the following steps:

[0027] The second side 2 is perpendicular to the surface of the structure platform, and the third side 3 is horizontal to the surface of the structure platform, and the end of the second side 2 in contact with the structure platform is provided with a welded fixing part 4.

[0028] In another embodiment of the present application, the welded flat surface extending 8mm-10mm along the bottom of the second side 2 is set as the welded fixing part, and a double fillet weld is used in welding, the fillet size is not less than 4mm, and the weld length is not less than 80% of the length of the profile side.

[0029] In the embodiment of the present application, the fillet size and the weld length can be selected with different parameters according to specific conditions, and the specific parameter selection is not specifically limited herein.

[0030] The embodiment of the present application provides an anti-falling three-edge profile structure and a mounting method, the three-edge profile structure comprises: a three-edge cross-section structure formed by sequentially connecting a first side 1, a second side 2 and a third side 3; the included angle α between the second side 2 and the third side 3 is 90°-120°, and the included angle β between the first side 1 and the second side 2 is 30°-60°; the length of the third side 3 is less than the length of the first side 1, and the bottom surface of the third side 3 is provided with an anti-skid structure.

[0031] The technical scheme of the present application can simplify the construction process, improve the operation flexibility, and save the construction cost.

[0032] The above is the preferred embodiment of the present application, and it should be pointed out that for ordinary skilled in the art, without departing from the principle of the present application, a number of improvements and refinements can be made, and these improvements and refinements should be considered as the protection scope of the present application.

Claims

1. A fall arrest triangular profile section structure, characterised in that, The three-edge profile structure comprises a three-edge cross-section structure formed by sequentially connecting a first edge (1), a second edge (2) and a third edge (3); an included angle α between the second edge (2) and the third edge (3) is 90°-120°, an included angle β between the first edge (1) and the second edge (2) is 30°-60°; a length of the third edge (3) is less than a length of the first edge (1), and an undersurface of the third edge (3) is provided with an anti-skid structure; The second edge (2) is kept in a perpendicular relationship with a surface of a structural platform, the third edge (3) is kept in a horizontal relationship with the surface of the structural platform, and an end portion of the second edge (2) in contact with the structural platform is provided with a welded fixing portion (4); The welded fixing portion is provided by extending a welding plane along an undersurface of the second edge (2) by 8mm-10mm, a double-face fillet weld is used in welding, a weld leg size is not less than 4mm, and a weld length is not less than 80% of a length of the profile edge.

2. A fall arrest triangular profile structure according to claim 1, characterised in that, The included angle α is 90°, and the included angle β is 45°.

3. A fall arrest triangular profile structure according to claim 1, characterised in that, The anti-skid structure comprises wave-shaped anti-skid lines arranged at intervals along a length direction of the third edge (3), a spacing between adjacent anti-skid lines is 5mm-8mm, and a line height is 1.5mm-2mm.

4. A fall arrest triangular profile structure according to claim 1, characterised in that, The profile structure is made of galvanized steel or stainless steel material, each edge connecting portion of the profile structure is provided with a reverse fillet structure, and a fillet radius of the reverse fillet structure is 2mm-3mm.

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