Fabricated wave absorbing eave for explosion-proof wall

Abstract

The invention discloses an assembly type wave absorbing eave for an anti-explosion wall in the technical field of explosion prevention, which comprises a main framework, an anti-bending purline and an anti-explosion steel plate, the main framework is sequentially connected with a presser foot, a vertical framework and an anti-bending framework from bottom to top, and the included angle between the anti-bending framework and the vertical framework is an obtuse angle; the plurality of anti-bending purlines are fixed on the anti-explosion steel plate; the anti-bending frameworks of the two main frameworks are connected with the two ends of the anti-bending purline respectively. According to the anti-explosion wall, the protection quality and efficiency of the anti-explosion wall are improved through the wave absorbing eaves, secondary damage caused by fragments of the anti-explosion wall is reduced, and the protection level of personnel and important infrastructures is improved; modular design and assembly type construction are adopted, production, transportation, installation and maintenance are convenient, the protection level can be improved under the condition that the existing structure of the explosion-proof wall is not changed, and the explosion-proof wall can be rapidly maintained after being damaged by explosion attack to resist subsequent explosion hazards.

Description

Technical Field

[0001] The invention relates to an assembled wave-breaking eave for an explosion-proof wall, belonging to the technical field of explosion-proofing. Background Art

[0002] The blast shock waves and fragments generated by the explosion pose a serious threat to the safety of relevant personnel and buildings. Preventive work on the above problems is urgent. Explosion-proof walls have emerged as an important protective project to resist blast waves and reduce damage from fragments.

[0003] Currently, the commonly used explosion-proof walls are gravity-type explosion-proof walls, which generally use steel bars and geotextiles as the external structure and are filled with sand inside. According to existing research data, the protective performance of the explosion-proof wall is positively correlated with the wall height. The interior of the explosion-proof wall is loose sand. In order to ensure the wall's anti-overturning stability, the wall's volume often needs to increase by more than 1.6 times the unit volume when the unit height is increased. This has a great impact on changing the protection level of the explosion-proof wall, and the construction speed of the protection project is slow and the protection quality and efficiency are low. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the defects of the prior art and provide an assembled wave-breaking eave for explosion-proof walls.

[0005] In order to solve the above technical problems, the present invention is implemented by adopting the following technical solutions.

[0006] The present invention discloses an assembled wave-breaking eave for explosion-proof walls, comprising a main frame, anti-bending purlins, and explosion-proof steel plates. The main frame is sequentially connected with a presser foot, a vertical frame, and an anti-bending frame from bottom to top, and the angle between the anti-bending frame and the vertical frame is an obtuse angle. A plurality of the anti-bending purlins are fixed on the explosion-proof steel plate; The two anti-bending frames of the main frames are respectively connected to the two ends of the anti-bending purlins.

[0007] Furthermore, the vertical frame is vertically arranged on the upper surface of the presser foot.

[0008] Furthermore, the vertical frame, the anti-bending frame and the presser foot are integrally formed to form a main frame.

[0009] Furthermore, the vertical frame and the bending-resistant frame are I-beams.

[0010] Furthermore, the upper flange and the lower flange of the anti-bending frame are both provided with a plurality of fixing holes, and the anti-bending purlins are connected through the fixing holes and fasteners.

[0011] Furthermore, the explosion-proof steel plate is also provided with a plurality of fixing holes, and the anti-bending purlins are connected through the fixing holes and fasteners.

[0012] Furthermore, the fixing hole is a threaded hole; the fastener includes a nut and a fixing bolt, and is fixed by the cooperation of the nut and the fixing bolt; the nut and the fixing bolt are made of high-strength alloy steel.

[0013] Furthermore, the angle between the anti-bending frame and the vertical frame is 130°-140°.

[0014] Furthermore, the anti-bending purlins are made of low-alloy high-strength square steel.

[0015] Furthermore, the explosion-proof steel plate is made of ordinary carbon structural steel.

[0016] The beneficial effects achieved by the present invention are: The present invention improves the protection quality and effectiveness of explosion-proof walls through wave-breaking eaves, reduces secondary damage caused by the explosion-proof wall's own fragments, and improves the level of protection for personnel and important infrastructure; the present invention adopts modular design and prefabricated construction, which is convenient for production, transportation, installation and maintenance. It can improve the protection level without changing the existing structure of the explosion-proof wall, and can quickly repair it after being damaged by an explosion attack to resist subsequent explosion hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional schematic diagram of the assembled wave-breaking eaves; Figure 2 for Figure 1 Schematic diagram of the main skeleton; Figure 3 for Figure 1 Schematic diagram of the medium bending purlin; Figure 4 for Figure 1 Schematic diagram of medium explosion-resistant steel plate; Figure 5 for Figure 1 Schematic diagram of the fixing bolts; Figure 6 Schematic diagram of the assembled explosion-proof steel plate.

[0018] Among them: 1. Main frame; 2. Bending purlin; 3. Explosion-proof steel plate; 4. Fasteners; 41. Nuts; 42. Fixing bolts; 5. Presser foot; 6. Vertical frame; 7. Bending frame; 8. Fixing holes. DETAILED DESCRIPTION

[0019] The present invention will be further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present invention and are not intended to limit the scope of protection of the present invention.

[0020] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0021] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0022] Example 1: This example introduces an assembled wave-breaking eave for explosion-proof walls. Figure 1 and Figure 2 As shown, the structure comprises a main frame 1, bending purlins 2, and explosion-proof steel plates 3. The main frame 1 is connected, from bottom to top, to a presser foot 5, a vertical frame 6, and a bending frame 7, with the bending frame 7 and the vertical frame 6 forming an obtuse angle. Three bending purlins 2 are fixed to the explosion-proof steel plates 3. The bending frames 7 of the two main frames 1 are connected to the ends of the bending purlins 2, respectively. With the main frame 1 serving as the basic force-bearing system, the bending purlins 2 serving as the primary bending-resistant components, and the explosion-proof steel plates 3 serving as the direct explosion-proof components, the overall explosion-proof performance of the explosion-proof wall is improved. The angle between the bending frame and the vertical frame is set at 130°-140°.

[0023] The vertical frame 6 is vertically arranged on the upper surface of the presser foot 5; the vertical frame 6, the anti-bending frame 7 and the presser foot 5 are integrally formed to form the main frame. The integrally formed vertical frame 6, the anti-bending frame 7 and the presser foot 5 have strong stability, strong anti-bending ability and good explosion resistance.

[0024] The vertical frame 6 and the anti-bending frame 7 are I-beams, which have the advantages of low cost, easy processing and rapid installation.

[0025] The upper and lower flanges of the anti-bending frame 7 are each provided with a plurality of fixing holes 8, through which the anti-bending purlins 2 are connected via fasteners 4. The explosion-proof steel plate 3 is also provided with a plurality of fixing holes 8, through which the anti-bending purlins 2 are connected via fasteners 4. The fixing holes 8 are threaded holes. The fasteners include a nut 41 and a fixing bolt 42, which are used for securing. The nut 41 and fixing bolt 42 are made of high-strength alloy steel. By providing fixing holes and securing with nuts and fixing bolts, installation is quick and replacement is easy.

[0026] The angle between the anti-bending frame 7 and the vertical frame 6 is 135 degrees, which can maximize the blocking of the diffraction path of the explosion shock wave and improve the explosion-proof effect.

[0027] In this embodiment, the nuts 41 and fixing bolts 42 are made of high-strength alloy steel, the anti-bending purlins 2 are made of low-alloy high-strength square steel, and the explosion-proof steel plates 3 are made of ordinary carbon structural steel, which has the advantages of low cost, easy processing and quick installation.

[0028] Example 2 is based on the same inventive concept as Example 1. This example introduces an assembled wave-breaking eave for an explosion-proof wall. The explosion-proof wall adopts the Hiseco explosion-proof wall, including a main frame 1, anti-bending purlins 2, and explosion-proof steel plates 3. The main frame 1 is used as the basic force system, the anti-bending purlins 2 are used as the main anti-bending components, and the explosion-proof steel plates 3 are used as direct explosion-proof components. They are connected by fixed bolts to improve the overall explosion-proof performance of the Hiseco explosion-proof wall.

[0029] The main frame 1 is made of Q460 I-steel (No. 20), with a height of 200mm, a leg width of 100mm, a waist thickness of 9mm, an angle between the bending frame and the vertical frame of 135°, and 3 fixing holes on each side, with a diameter of 20mm and a spacing of 200mm.

[0030] The anti-bending purlin 2 is made of Q345 low-alloy high-strength square steel, with a long side of 100 mm, a short side of 20 mm, and a wall thickness of 5 mm. A fixing hole 8 with a diameter of 20 mm is set on both sides at 25 mm and 125 mm from the end, which is used to connect the anti-bending purlin 2 and the explosion-proof steel plate 3.

[0031] The blast-resistant steel plate 3 is made of Q235 ordinary carbon structural steel, with a length of 1800 mm, a width of 600 mm, and a thickness of 15 mm. Three fixing holes 8 are reserved at each end, 100 mm from the short edge, for connecting the bending-resistant purlins 2. As a component that directly resists the blast wave, the blast-resistant steel plate 3 plays a primary role in wave absorption and preventing shock wave diffraction.

[0032] The fixing bolts 42 are made of high-strength alloy steel, with a screw length of 150 mm and a screw diameter of 20 mm. The nuts and caps 41 are both 50 mm in diameter. They are used to connect the main frame 1, the bending purlins 2, and the explosion-proof steel plates 3, and are quick to install and easy to replace.

[0033] The principle of the present invention is as follows: when setting up the Haisco explosion-proof wall, the assembled wave-breaking eaves are set up simultaneously, the main frame is placed according to the length of the bending purlin (generally set to 2 meters), the pressure foot is placed under the explosion-proof wall, and then the explosion-proof wall is filled, and the bending purlin and explosion-proof steel plates are installed.

[0034] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An assembled wave-breaking eave for explosion-proof walls, characterized in that: It comprises a main frame (1), anti-bending purlins (2), and explosion-proof steel plates (3), and is characterized in that: The main frame (1) is connected to a presser foot (5), a vertical frame (6), and an anti-bending frame (7) in sequence from bottom to top, and the angle between the anti-bending frame (7) and the vertical frame (6) is an obtuse angle; A plurality of the anti-bending purlins (2) are fixed on the explosion-proof steel plate (3); The anti-bending frames (7) of the two main frames (1) are respectively connected to the two ends of the anti-bending purlin (2).

2. The assembled wave-breaking eaves for explosion-proof walls according to claim 1, characterized in that: The vertical frame (6) is vertically arranged on the upper surface of the presser foot (5).

3. The assembled wave-breaking eaves for explosion-proof walls according to claim 1, characterized in that: The vertical frame (6), the anti-bending frame (7) and the presser foot (5) are integrally formed to form the main frame (1).

4. The assembled wave-breaking eaves for explosion-proof walls according to claim 1, characterized in that: The vertical frame (6) and the bending-resistant frame (7) are I-beams.

5. The assembled wave-breaking eaves for explosion-proof walls according to claim 4, characterized in that: The upper flange and the lower flange of the anti-bending frame (7) are both provided with a plurality of fixing holes, and the anti-bending purlins (2) are connected via the fixing holes and fasteners.

6. The assembled wave-breaking eaves for explosion-proof walls according to claim 5, characterized in that: The explosion-proof steel plate (3) is also provided with a plurality of fixing holes, and the anti-bending purlins (2) are connected via the fixing holes and fasteners.

7. The assembled wave-breaking eaves for explosion-proof walls according to claim 6, characterized in that: The fixing hole is a threaded hole; the fastener includes a nut and a fixing bolt, and is fixed by the cooperation of the nut and the fixing bolt; the nut and the bolt are made of high-strength alloy steel.

8. The assembled wave-breaking eaves for explosion-proof walls according to claim 1, characterized in that: The angle between the anti-bending frame (7) and the vertical frame (6) is 130°-140°.

9. The assembled wave-breaking eaves for explosion-proof walls according to claim 1, characterized in that: The anti-bending purlin (2) is made of low-alloy high-strength square steel.

10. The assembled wave-breaking eaves for explosion-proof walls according to claim 1, characterized in that: The explosion-proof steel plate (3) is made of ordinary carbon structural steel.

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