Welding fire welding protection structure for upper flange of H-shaped steel beam

Abstract

The utility model discloses a welding fire welding protection structure of an H-shaped steel beam top flange. The welding fire welding protection structure comprises two H-shaped steel beams and a fire welding device arranged at the joint of the two H-shaped steel beams. The fire receiving device comprises a first fire receiving box and a second fire receiving box which are oppositely arranged on the two sides of a web of the H-shaped steel beam. The first fire receiving box comprises a bottom plate, a side clamping plate, a first side baffle, a second side baffle and an upper baffle; the bevel edge of the side clamping plate inclines towards the side away from the H-shaped steel beam, a clamping groove is formed in the intersection point of the bevel edge and the short side edge of the side clamping plate, clamping plates used for clamping the upper end face and the lower end face of the upper flange of the H-shaped steel beam are arranged on the outer edge of the clamping groove, and the top face of the first side baffle does not exceed the clamping groove. A connecting plate is further arranged between the first fire receiving box and the second fire receiving box. The technical problem that safety risks are caused due to the fact that sparks splashed during welding of the H-shaped steel beam are difficult to bear completely is solved.

Description

Technical Field

[0001] The utility model relates to the field of steel beam welding fire protection, in particular to a welding fire protection structure for an upper flange of an H-shaped steel beam. Background Art

[0002] During the on-site installation of steel beams, the ends of two H-shaped steel beams need to be welded. The upper flange of the H-shaped steel beam is usually welded at high altitude, and sparks fly during welding. The sparks mainly fly sideways and diagonally upward. The traditional fire-catching basin is mainly located below the welding interface, and it is extremely difficult to catch the sparks flying sideways and diagonally upward. However, the flying sparks are molten welding wire molten iron, which is extremely hot and can easily cause fires. Therefore, effective fire-catching measures are a problem that must be solved during the welding process. Utility Model Content

[0003] The utility model aims to provide a welding fire protection structure for the upper flange of an H-shaped steel beam, so as to solve the technical problem that the spark splashing during welding of the H-shaped steel beam is difficult to completely bear, thus causing safety risks.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The utility model provides a welding fire protection structure for the upper flange of an H-shaped steel beam, comprising two sections of H-shaped steel beams and a fire connection device arranged at the joint of the two sections of the H-shaped steel beams; the fire connection device comprises a first fire connection box and a second fire connection box which are arranged oppositely on both sides of the web of the H-shaped steel beam, and the first fire connection box and the second fire connection box have the same structure; the first fire connection box comprises a bottom plate, a side clamping plate, a first side baffle plate, a second side baffle plate and an upper baffle plate; the bottom plate is a rectangular plate, a pair of side clamping plates are arranged on a group of short sides of the bottom plate, a first side baffle plate is arranged on a long side of one side of the bottom plate close to the H-shaped steel beam, and a first side baffle plate is arranged on the other long side of the bottom plate The second side baffle plate; the side clamp plate is a pentagonal plate, including a top side, a bottom side, a short side side, a long side side and a hypotenuse, wherein an upper baffle plate is arranged between the top sides of a pair of side clamp plates, the long side side of the side clamp plate is connected to the second side baffle plate, and the short side side of the side clamp plate is connected to the first side baffle plate; the hypotenuse of the side clamp plate is inclined toward the side away from the H-shaped steel beam, and a slot is arranged at the intersection of the hypotenuse and the short side of the side clamp plate, and a clamping plate for clamping the upper and lower end faces of the upper flange of the H-shaped steel beam is arranged on the outer edge of the slot, and the top surface of the first side baffle plate does not exceed the slot; a connecting plate is also arranged between the first fire connection box and the second fire connection box.

[0006] Preferably, the connecting plate includes a fixed end and a movable end, the fixed end is hingedly fixed to the clamping plate of the first fire connection box, the movable end is provided with a limiting hole, the clamping plate of the second fire connection box is provided with a limiting plate, and the movable end is buckled with the limiting plate through the limiting hole.

[0007] Preferably, a rubber pad is provided on the surface of the clamping plate close to the upper flange of the H-shaped steel beam to increase friction.

[0008] Preferably, the rubber pad is bonded and fixed to the clamping plate.

[0009] Preferably, the side edge of the upper baffle close to the H-shaped steel beam is flush with the edge of the upper flange of the H-shaped steel beam.

[0010] Preferably, the length of the top edge of the side card is shorter than the length of the bottom edge.

[0011] Preferably, the length of the long side of the side clamp is equal to the height of the second side baffle.

[0012] Preferably, the bottom plate, the side card plate, the first side baffle plate, the second side baffle plate, the upper baffle plate and the clamping plate are all made of 1 mm thick steel plates.

[0013] Preferably, the bottom plate, the side clamping plate, the first side baffle plate, the second side baffle plate and the upper baffle plate are all welded and fixed, and the clamping plate and the side clamping plate are welded and fixed.

[0014] The beneficial effects of the utility model are embodied in:

[0015] 1) The utility model provides a welding fire protection structure for the upper flange of an H-shaped steel beam. By arranging a slot and a clamping plate, two fire boxes can be clamped and fixed on the upper flange of the H-shaped steel beam, and the two fire boxes are connected and fixed by a connecting plate, so as to strengthen the connection between the two fire boxes and prevent the fire boxes from sliding on the H-shaped steel beam. A rubber pad is pasted on the clamping plate to increase the contact friction between the clamping plate and the upper flange of the H-shaped steel beam, so as to further reinforce the fire box.

[0016] 2) The utility model provides a welding fire protection structure for the upper flange of an H-shaped steel beam, wherein the side clamping plate is arranged obliquely above the clamping groove, and the inner edge of the upper baffle plate is flush with the edge of the upper flange of the H-shaped steel beam, which provides a working space for welding and can shield the flying sparks to the maximum extent;

[0017] 3) The utility model provides a welding fire protection structure for the upper flange of an H-shaped steel beam. The fire devices are made of 1mm thick lightweight steel plates, have light weight, are easy to install and dismantle, are highly flexible, have strong turnover and economy, and the two fire boxes are symmetrically arranged, with obvious fire effect.

[0018] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the utility model. The main purpose and other advantages of the utility model can be realized and obtained by the solutions particularly pointed out in the description. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0020] Figure 1It is a stereogram of the utility model.

[0021] Figure 2 It is a stereoscopic diagram of the fire connection device of the utility model.

[0022] Figure markings: 1-H-shaped steel beam, 2-fire connection device, 3-connecting plate, 4-limiting plate, 21-first fire connection box, 22-second fire connection box, 31-limiting hole, 211-bottom plate, 212-side clamping plate, 213-first side baffle plate, 214-second side baffle plate, 215-upper baffle plate, 216-card slot, 217-clamping plate. DETAILED DESCRIPTION

[0023] The technical solution of the present invention is described in detail below through embodiments. The following embodiments are merely exemplary and can only be used to explain and illustrate the technical solution of the present invention, but cannot be interpreted as limiting the technical solution of the present invention.

[0024] Reference Figure 1-2The present embodiment provides a welding fire protection structure for the upper flange of an H-shaped steel beam, comprising two sections of H-shaped steel beams 1 and a fire connection device 2 arranged at the joint of the two sections of the H-shaped steel beams 1; the fire connection device 2 comprises a first fire connection box 21 and a second fire connection box 22 which are arranged opposite to each other on both sides of the web of the H-shaped steel beam 1, and the first fire connection box 21 and the second fire connection box 22 have the same structure; the first fire connection box 21 comprises a bottom plate 211, a side clamp plate 212, a first side baffle plate 213, a second side baffle plate 214 and an upper baffle plate 215, and the first fire connection box 21 adopts a 1m m thick steel plates are welded and fixed to each other; the bottom plate 211 is a rectangular plate, a pair of side clamps 212 are set on a group of short sides of the bottom plate 211, a first side baffle 213 is set on the long side of one side of the bottom plate 211 close to the H-shaped steel beam 1, and a second side baffle 214 is set on the other long side of the bottom plate 211; the side clamp 212 is a pentagonal plate, including a top side, a bottom side, a short side, a long side and a beveled side, the top side length of the side clamp 212 is shorter than the bottom side length, wherein an upper baffle 215 is set between the top sides of a pair of side clamps 212, and the side clamps 2 The long side of the side card plate 212 is connected to the second side baffle plate 214, and the length of the long side of the side card plate 212 is equal to the height of the second side baffle plate 214, and the short side of the side card plate 212 is connected to the first side baffle plate 213; the hypotenuse of the side card plate 212 is inclined toward the side away from the H-shaped steel beam 1, and a card slot 216 is set at the intersection of the hypotenuse and the short side of the side card plate 212. The outer edge of the card slot 216 is welded with a clamping plate 217 for clamping the upper and lower end surfaces of the upper flange of the H-shaped steel beam. The clamping plate 217 also adopts a 1mm thick lightweight steel plate. The clamping plate 217 A rubber pad is provided on the surface close to the upper flange of the H-shaped steel beam to increase friction, and the rubber pad is bonded and fixed to the clamping plate 217; the top surface of the first side baffle 213 does not exceed the slot 216; a connecting plate 3 is also provided between the first fire connection box 21 and the second fire connection box 22, and the connecting plate 3 includes a fixed end and a movable end, the fixed end is hinged and fixed to the clamping plate 217 of the first fire connection box 21, and a limiting hole 31 is provided at the movable end, and a limiting plate 4 is provided on the clamping plate 217 of the second fire connection box 22, and the movable end is buckled with the limiting plate 4 through the limiting hole 31.

[0025] Furthermore, the working principle of the utility model is as follows: first, assemble the first fire connection box 21 and the second fire connection box 22, install the connecting plate 3 on the clamping plate 217, glue and fix the rubber pad on the clamping plate 217, and then clamp and fix the first fire connection box 21 and the second fire connection box 22 to the upper flange at the joint of the two sections of H-shaped steel beams 1 that need to be welded, and buckle the limiting hole 31 on the movable end of the connecting plate 3 to the limiting plate 4 for welding; after the welding is completed, rotate the connecting plate 3, separate the movable end of the connecting plate 3 from the limiting plate 4, and then remove the first fire connection box 21 and the second fire connection box 22 for next use.

[0026] The above description is only a preferred specific implementation of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that a technician familiar with the technical field thinks of within the technical scope disclosed in the present invention should be included in the protection scope of the present invention.

Claims

1. A welding fire protection structure for the upper flange of an H-shaped steel beam, characterized in that: It comprises two sections of H-shaped steel beams (1) and a fire connection device (2) arranged at the joint between the two sections of H-shaped steel beams (1); The fire connection device (2) comprises a first fire connection box (21) and a second fire connection box (22) which are arranged opposite to each other on both sides of the web of the H-shaped steel beam (1); the first fire connection box (21) and the second fire connection box (22) have the same structure; The first fire connection box (21) comprises a bottom plate (211), a side clamping plate (212), a first side baffle plate (213), a second side baffle plate (214) and an upper baffle plate (215); the bottom plate (211) is a rectangular plate, a pair of side clamping plates (212) are arranged on a group of short sides of the bottom plate (211), a first side baffle plate (213) is arranged on a long side of one side of the bottom plate (211) close to the H-shaped steel beam (1), and a second side baffle plate (214) is arranged on the other long side of the bottom plate (211); The side clamping plate (212) is a pentagonal plate, comprising a top side, a bottom side, a short side side, a long side side and a beveled side, wherein an upper baffle (215) is arranged between the top sides of a pair of side clamping plates (212), the long side side of the side clamping plate (212) is connected to the second side baffle (214), and the short side side of the side clamping plate (212) is connected to the first side baffle (213); the beveled side of the side clamping plate (212) is inclined toward a side away from the H-shaped steel beam (1), a clamping groove (216) is arranged at the intersection of the beveled side and the short side side of the side clamping plate (212), a clamping plate (217) for clamping the upper and lower end surfaces of the upper flange of the H-shaped steel beam is arranged on the outer edge of the clamping groove (216), and the top surface of the first side baffle (213) does not exceed the clamping groove (216); A connecting plate (3) is also provided between the first fire connection box (21) and the second fire connection box (22).

2. A welding fire protection structure for the upper flange of an H-shaped steel beam as claimed in claim 1, characterized in that: The connecting plate (3) comprises a fixed end and a movable end, the fixed end being hingedly fixed to the clamping plate (217) of the first fire connection box (21), the movable end being provided with a limiting hole (31), the clamping plate (217) of the second fire connection box (22) being provided with a limiting plate (4), and the movable end being buckled with the limiting plate (4) through the limiting hole (31).

3. A welding fire protection structure for the upper flange of an H-shaped steel beam as claimed in claim 2, characterized in that: A rubber pad is provided on the surface of the clamping plate (217) close to the upper flange of the H-shaped steel beam to increase friction.

4. A welding fire protection structure for the upper flange of an H-shaped steel beam as claimed in claim 3, characterized in that: The rubber pad is bonded and fixed to the clamping plate (217).

5. The welding fire protection structure of the upper flange of an H-shaped steel beam as claimed in claim 1, characterized in that: The side edge of the upper baffle plate (215) close to the H-shaped steel beam (1) is flush with the edge of the upper flange of the H-shaped steel beam.

6. The welding fire protection structure of the upper flange of an H-shaped steel beam as claimed in claim 1, characterized in that: The length of the top side of the side clamping plate (212) is shorter than the length of the bottom side.

7. The welding fire protection structure of the upper flange of an H-shaped steel beam as claimed in claim 1, characterized in that: The length of the long side of the side clamping plate (212) is equal to the height of the second side baffle plate (214).

8. The welding fire protection structure of the upper flange of an H-shaped steel beam as claimed in claim 1, characterized in that: The bottom plate (211), the side clamping plate (212), the first side baffle plate (213), the second side baffle plate (214), the upper baffle plate (215) and the clamping plate (217) are all made of 1 mm thick steel plates.

9. A welding fire protection structure for the upper flange of an H-shaped steel beam as claimed in claim 8, characterized in that: The bottom plate (211), the side clamping plate (212), the first side baffle plate (213), the second side baffle plate (214) and the upper baffle plate (215) are all welded and fixed, and the clamping plate (217) and the side clamping plate (212) are welded and fixed.

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