Fixed connecting piece for reinforcing and supporting fireproof pipe

Abstract

The utility model discloses a fixed connecting piece for reinforcing and supporting a fireproof pipe, which is characterized in that a U-shaped inserting strip with a U-shaped slot is formed by a long edge, a short edge and a slot bottom, the slot is an upper U-shaped inserting strip which is horizontally arranged, the long edge of the upper U-shaped inserting strip is positioned at the upper part of the slot, the short edge of the upper U-shaped inserting strip is positioned at the lower part of the slot, and the outer side surface of the short edge of the upper U-shaped inserting strip is fixedly connected with the vertical slot. The back face of the groove bottom of the lower U-shaped inserting strip is fixedly connected with the outer side face of the short edge of the upper U-shaped inserting strip, the back face of the groove bottom of the upper U-shaped inserting strip is flush with the outer side face of the long edge of the lower U-shaped inserting strip, an air pipe fixing connecting piece is formed, and inserting grooves of the upper U-shaped inserting strip and the lower U-shaped inserting strip of the air pipe fixing connecting piece are matched with cut air pipe plates respectively. And the self-tapping screws are used for fastening and connecting. The air duct splicing structure is reasonable in structure, can solve the quality problem of insufficient leakproofness of air duct splicing seams, ensures the product quality, achieves the sealing effect, and solves the problems of air duct splicing and the like fundamentally.

Description

Technical Field

[0001] The utility model belongs to a connecting piece for a fireproof pipe in building construction support, in particular to a fixed connecting piece for forming a reinforced support fireproof pipe. Background Art

[0002] During the assembly and splicing of air ducts, the traditional method in on-site processing plants is to press the air ducts into shape through a rolling machine, and then splice the air ducts together through a bite connection form. Each section of the air duct is connected by an insertion strip or a flange. The disadvantages of this method are: 1. The sealing performance is relatively weak, and the pipeline is prone to leakage at bends and corners, and the durability and stability are insufficient. 2. When the size of the air duct is greater than a certain extent, reinforcement is required, which will increase additional costs. Content of the Utility Model

[0003] The purpose of the utility model is to provide a fixed connecting piece for forming a reinforced support fireproof pipe, with a reasonable structure, which can solve the quality problem of insufficient tightness of the air duct splicing seam, ensure the product quality, achieve the sealing effect, and fundamentally solve problems such as the assembly of the air duct.

[0004] The purpose of the utility model is realized as follows: A fixed connecting piece for forming a reinforced support fireproof pipe is composed of a long side, a short side and a groove bottom to form a U-shaped insertion strip with a U-shaped slot. The U-shaped slot is a horizontally arranged upper U-shaped insertion strip. The long side of the upper U-shaped insertion strip is located at the upper part of the U-shaped slot, and the short side is located at the lower part of the U-shaped slot. On the outer side surface of the short side of the upper U-shaped insertion strip, a lower U-shaped insertion strip with a U-shaped slot is vertically fixed. The back of the groove bottom of the lower U-shaped insertion strip is fixedly connected to the outer side surface of the short side of the upper U-shaped insertion strip. The back of the groove bottom of the upper U-shaped insertion strip is flush with the outer side surface of the long side of the lower U-shaped insertion strip, forming an air duct fixed connecting piece. The U-shaped slots of the upper U-shaped insertion strip and the lower U-shaped insertion strip of the air duct fixed connecting piece are respectively matched with the cut air duct plates, and are fixedly connected by self-tapping screws. The air duct fixed connecting pieces arranged at the four corners of the rectangular air duct are sequentially inserted, assembled and fixedly connected with the cut air duct plates to form a self-supporting fireproof air duct.

[0005] The utility model cleverly splices and welds two U-shaped insertion strips into a similar shape by using the Chinese character "zhi" shape. The U-shaped insertion strips are welded at a vertical angle. The two ends of the air duct plate are directly inserted into the grooves at both ends of the "zhi" shape, and then self-tapping screws can be directly drilled on the splicing strip and drilled into the self-supporting air duct plate for fixation. According to the characteristics of the self-supporting plate, both the tightness requirement and the reinforcement and fixation requirement are met.

[0006] The material of the utility model is a metal material, and it is composed of two U-shaped insertion strips with a size of 10mm (U-shaped short side) * 30mm (U-shaped long side) * 1mm (U-shaped insertion strip thickness), which are vertically welded into a "zhi" shaped fixing device.

[0007] Use two U-shaped inserts and vertically weld them into a "stop"-shaped fixing device. Then, splice the self-supporting fireproof air duct plates and use self-tapping screws to fix the "stop"-shaped fixing device. This can fully meet the installation reinforcement and sealing requirements of the self-supporting fireproof air duct.

[0008] Construction steps:

[0009] (1) Select the corresponding model of U-shaped inserts according to the thickness of the self-supporting fireproof air duct plates selected for the project;

[0010] (2) Splice and weld the selected U-shaped inserts according to the required dimensions of the air duct. Vertically weld the short joint part of one U-shaped insert to the long side of the other U-shaped insert. After welding, conduct weld inspection. Only after the welding is firm can the next procedure be carried out;

[0011] (3) Determine the installation spacing of the self-tapping screws and hexagon screws according to the pressure of the self-supporting air duct, and fix the self-tapping screws on the "stop"-shaped fixing device to achieve the sealing effect;

[0012] (4) If it is necessary to fix it to the flange, mechanical punching needs to be used on the flange to fix the flange and the "stop"-type fixing device with external hexagon self-tapping screws.

[0013] The structure of the utility model is reasonable, which solves the quality problem of insufficient tightness of the air duct splicing seam, ensures the product quality, achieves the sealing effect, and fundamentally solves the problems such as the assembly of the air duct. Brief description of the drawings

[0014] The following will further describe the utility model in conjunction with the drawings. Figure 1 It is a schematic cross-sectional structure diagram of the utility model. Figure 2 It is a schematic structure diagram of the fireproof air duct formed by connecting and fixing with the utility model. Detailed implementation manners

[0015] A fixed connector for constructing a reinforced and supported fireproof pipe, such as Figure 1 、 Figure 2As shown in the figure, a U-shaped insert with a U-shaped slot 3 is formed by a long side 1, a short side 2 and a slot bottom 4. The U-shaped slot 3 is a horizontally arranged upper U-shaped insert. The long side 1 of the upper U-shaped insert is located at the upper part of the U-shaped slot 3, and the short side 2 is located at the lower part of the U-shaped slot 3. A lower U-shaped insert with the U-shaped slot 3 upright and opening downward is fixedly connected to the outer side surface of the short side 2 of the upper U-shaped insert. The back surface of the slot bottom 4 of the lower U-shaped insert is fixedly connected to the outer side surface of the short side 2 of the upper U-shaped insert. The back surface of the slot bottom 4 of the upper U-shaped insert is flush with the outer side surface of the long side 1 of the lower U-shaped insert, forming an air duct fixing connector. The U-shaped slots 3 of the upper U-shaped insert and the lower U-shaped insert of the air duct fixing connector are respectively matched with the cut air duct plate 5 and fixedly connected with self-tapping screws 6. The air duct fixing connectors arranged at the four corners of the rectangular air duct are sequentially inserted, assembled and fixedly connected with the cut air duct plate 5 to form a self-supporting fireproof air duct. An inward bending surface is arranged near the long side 1 of the slot bottom 4, and the included angle between the inward bending surface of the long side 1 and the slot bottom 4 is 93°-95°. The length of the long side 1 is 300 mm, the length of the short side 2 is 10-20 mm, and the slot width is 1 mm.

Claims

1. A fixed connector for reinforcing and supporting a fireproof pipe, characterized in that: A U-shaped inserting strip having a U-shaped slot (3) is formed by a long side (1), a short side (2) and a slot bottom (4); the U-shaped slot (3) is an upper U-shaped inserting strip arranged horizontally; the long side (1) of the upper U-shaped inserting strip is located at the upper part of the U-shaped slot (3); the short side (2) is located at the lower part of the U-shaped slot (3); a lower U-shaped inserting strip is fixedly connected to the outer side of the short side (2) of the upper U-shaped inserting strip, the U-shaped slot (3) is arranged upright and the opening is downward; the back side of the slot bottom (4) of the lower U-shaped inserting strip is connected to the short side of the upper U-shaped inserting strip; The outer sides of the upper U-shaped insert (4) are fixedly connected together, and the back of the groove bottom (4) of the upper U-shaped insert is flush with the outer side of the long side (1) of the lower U-shaped insert, forming a duct fixing connector. The U-shaped slots (3) of the upper U-shaped insert and the lower U-shaped insert of the duct fixing connector are respectively matched with the cut duct plate (5) and fastened with self-tapping screws (6). The duct fixing connectors arranged at the four corners of the rectangular duct are sequentially plugged, assembled and fixedly connected with the cut duct plate (5) to form a self-supporting fireproof duct.

2. A fixed connection member for reinforcing and supporting a fireproof pipe according to claim 1, characterized in that: An inwardly bent surface is arranged at the long side (1) close to the groove bottom (4), and the included angle between the inwardly bent surface of the long side (1) and the groove bottom (4) is 93°-95°.

3. The fixing connecting member for reinforcing and supporting a fireproof pipe according to claim 1 is characterized in that: The length of the long side (1) is 300 mm, the length of the short side (2) is 10-20 mm, and the groove width is 1 mm.

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