Fabricated finished fire-resistant air duct

Abstract

The utility model relates to an assembly type finished fire-resistant air pipe which comprises a square pipe body, a first connecting flange and a second connecting flange, the first connecting flange and the second connecting flange are arranged at the two ends of the pipe body respectively, and an installation groove plate is fixedly connected between the first connecting flange and the second connecting flange. The installation groove plate comprises a plurality of branch plates which are distributed on one side of the pipe body respectively and are equal to the pipe body in distance, an opening allowing the fireproof heat insulation plate to penetrate through is formed between every two adjacent branch plates, the fireproof heat insulation plate is located between the installation groove plate and the pipe body and fixedly connected with the pipe body through steel rivets, and a protection corner plate is arranged at each opening. According to the assembly type finished fire-resistant air pipe, heat insulation materials outside the fire-resistant air pipe are protected, the service life is prolonged, and damage is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of air ducts, in particular to an assembled finished fire-resistant air duct. Background Art

[0002] Air ducts, also known as ventilation pipes, are generally used in large quantities in clean workshops, shopping malls, lightweight assembled rooms, wall insulation, fireproof sandwich doors and other fields. For example, these building facilities are equipped with central air-conditioning ducts, hot and cold delivery pipelines, etc.

[0003] Fire-resistant air ducts are used in scenarios where fire-resistant performance is required, and generally the outside of the pipe body is wrapped with insulation materials. However, the existing fire-resistant air duct insulation materials are exposed to the outside, which is easily affected by the outside world, resulting in a shortened lifespan and being easily damaged. Utility Model Content

[0004] The utility model aims to design an assembled finished fire-resistant air duct, so as to protect the heat-insulating material outside the fire-resistant air duct, increase the service life and avoid damage.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A prefabricated finished fire-resistant air duct comprises a square tube body, a first connecting flange and a second connecting flange, wherein the first connecting flange and the second connecting flange are respectively arranged at two ends of the tube body, a mounting slot plate is fixedly connected between the first connecting flange and the second connecting flange, the mounting slot plate comprises a plurality of sub-plates respectively distributed on one side of the tube body and equidistant from the tube body, openings for the passage of fire-resistant heat insulation plates are arranged between adjacent sub-plates, the fire-resistant heat insulation plates are located between the mounting slot plate and the tube body, the fire-resistant heat insulation plates are fixedly connected to the tube body by steel rivets, and a protective angle plate is arranged at the opening.

[0007] Furthermore, in the above-mentioned assembled finished fire-resistant air duct, the installation groove plate includes an F-shaped partition plate and two I-shaped partition plates, the two I-shaped partition plates are respectively located on the adjacent two sides of the tube body, and the F-shaped partition plate is located on the remaining two sides of the tube body. The short transverse plate side of the F-shaped partition plate is located on the same plane as one side of the tube body, and the short transverse plate is connected to the tube body.

[0008] Furthermore, in the above-mentioned assembled finished fire-resistant air duct, the protective angle plate is welded to the partition plate.

[0009] Furthermore, in the above-mentioned assembled finished fire-resistant air duct, the protective angle plate and the partition plate are fixedly connected by screws.

[0010] Furthermore, in the above-mentioned assembled finished fire-resistant air duct, the fire-resistant insulation board includes a first fire-resistant insulation board and a second fire-resistant insulation board.

[0011] Furthermore, in the above-mentioned assembled finished fire-resistant air duct, the first fire-resistant insulation board is a glass wool board, and the second fire-resistant insulation board is an aluminum silicate board.

[0012] Furthermore, in the above-mentioned assembled finished fire-resistant air duct, reinforcing rods are fixedly connected to the four inner corners of the tube body.

[0013] Furthermore, in the above-mentioned assembled finished fire-resistant air duct, a positioning groove is provided on the first connecting flange, and a positioning protrusion is provided on the second connecting flange, and the positioning protrusion cooperates with the positioning groove.

[0014] Compared with the prior art, the utility model has the following beneficial effects: the utility model provides an assembled finished fire-resistant air duct, in which the fire-resistant insulation board is first installed into the installation groove plate, and then the fire-resistant insulation board is fixedly connected to the pipe body by steel rivets, and then the protective angle plate is installed at the opening, so that the exposed surface of the fire-resistant insulation board can be covered by the installation groove plate and the protective angle plate, thereby protecting the insulation material outside the fire-resistant air duct, improving its service life and avoiding damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a structural schematic diagram of another viewing angle of the utility model;

[0018] Figure 3 It is a cross-sectional view of the utility model;

[0019] Figure 4 Another cross-sectional view of the utility model;

[0020] The names of the components marked in the figure are as follows:

[0021] 1. First connecting flange; 11. Positioning groove; 2. Tube body; 21. Reinforcing rod; 3. Second connecting flange; 31. Positioning protrusion; 4. Mounting slot plate; 41. Steel rivet; 5. Protective angle plate; 51. Screw; 6. Aluminum silicate plate; 7. Glass wool plate. DETAILED DESCRIPTION

[0022] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0023] Example: Please refer to Figure 1-4 A prefabricated finished fire-resistant air duct comprises a square tube body 2, a first connecting flange 1 and a second connecting flange 3, wherein the first connecting flange 1 and the second connecting flange 3 are respectively fixedly connected to both ends of the tube body 2. A positioning groove 11 is provided on the first connecting flange 1, and a positioning convex block 31 is provided on the second connecting flange 3. The positioning convex block 31 matches the positioning groove 11 in shape. When one air duct is connected to another air duct, the two air ducts can be accurately aligned through the positioning convex block 31 and the positioning groove 11.

[0024] A mounting slot plate 4 is fixedly connected between the first connecting flange 1 and the second connecting flange 3. The mounting slot plate 4 includes a plurality of sub-plates, which are respectively distributed on one side of the pipe body 2 and are equidistant from the pipe body 2 to install fire-resistant insulation panels of the same thickness.

[0025] In this embodiment, the mounting slot plate 4 includes an F-shaped dividing plate and two I-shaped dividing plates, the two I-shaped dividing plates are respectively located on the adjacent two sides of the tube body 2, the long horizontal plate and the vertical plate of the F-shaped dividing plate are respectively located on the remaining two sides of the tube body 2, the side surface of the short horizontal plate of the F-shaped dividing plate is located on the same plane as one side surface of the tube body 2, and the short horizontal plate is connected to the tube body 2, such as Figure 3 and Figure 4 As shown. An opening is provided between adjacent partitions for the installation of the fire-resistant heat insulation board. The fire-resistant heat insulation board is located between the installation slot plate 4 and the tube body 2. The fire-resistant heat insulation board is fixedly connected to the tube body 2 by steel rivets 41. In order to prevent the need to drill holes on site on the installation slot plate 4 when punching the steel rivets 41, the installation slot plate 4 can be pre-set with holes for punching the steel rivets 41. A protective angle plate 5 is provided at the opening. In this embodiment, the protective angle plate 5 is fixedly connected to the partition plate by screws 51. In other specific embodiments, the protective angle plate 5 can also be welded to the partition plate. One F-shaped partition plate and two I-shaped partition plates can reduce the need for one protective angle plate 5. The exposed surface of the fire-resistant heat insulation board can be covered by installing the slot plate 4 and the protective angle plate 5, thereby protecting the insulation material outside the fire-resistant air duct, improving its service life and avoiding damage.

[0026] The fireproof insulation board includes a first fireproof insulation board and a second fireproof insulation board. The first fireproof insulation board is a glass wool board 7, and the second fireproof insulation board is an aluminum silicate board 6. The double-layer fireproof insulation board enhances the fire resistance.

[0027] Furthermore, reinforcing rods 21 are fixedly connected to the four inner corners of the tube body 2 to improve the overall stability of the tube body 2 .

[0028] Working principle of this embodiment: This embodiment provides a prefabricated finished fire-resistant air duct, first install the fire-resistant heat insulation board into the installation groove plate 4, then fix the fire-resistant heat insulation board with the pipe body 2 through the steel rivet 41, and then install the protective angle plate 5 at the opening, so that the exposed surface of the fire-resistant heat insulation board can be covered by the installation groove plate 4 and the protective angle plate 5, so as to protect the insulation material outside the fire-resistant air duct, improve the service life and avoid damage. When one air duct is connected to another air duct, the two air ducts can be accurately aligned by the positioning protrusion 31 on the second connecting flange 3 and the positioning groove 11 on the first connecting flange 1.

[0029] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an element centered thereon. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an element centered thereon. The terms "upper", "lower", "left", "right", "front", "rear" and similar expressions used herein are for illustrative purposes only.

[0030] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. An assembled finished fire-resistant air duct, comprising a square tube body (2), a first connecting flange (1) and a second connecting flange (3), wherein the first connecting flange (1) and the second connecting flange (3) are respectively arranged at two ends of the tube body (2), characterized in that: A mounting groove plate (4) is fixedly connected between the first connecting flange (1) and the second connecting flange (3); the mounting groove plate (4) comprises a plurality of sub-plates respectively distributed on one side of the tube body (2) and equidistant from the tube body (2); openings for the passage of a fire-resistant heat insulation plate are provided between adjacent sub-plates; the fire-resistant heat insulation plate is located between the mounting groove plate (4) and the tube body (2); the fire-resistant heat insulation plate is fixedly connected to the tube body (2) by rivets; and a protective angle plate (5) is provided at the opening.

2. The assembled finished fire-resistant air duct according to claim 1 is characterized in that: The mounting slot plate (4) comprises an F-shaped dividing plate and two I-shaped dividing plates, the two I-shaped dividing plates are respectively located on two adjacent sides of the tube body (2), the F-shaped dividing plate is located on the remaining two sides of the tube body (2), the short transverse plate side surface of the F-shaped dividing plate and one side surface of the tube body (2) are located on the same plane, and the short transverse plate is connected to the tube body (2).

3. The assembled finished fire-resistant air duct according to claim 1 is characterized in that: The protective corner plate (5) is welded to the split plate.

4. The assembled finished fire-resistant air duct according to claim 1 is characterized in that: The protective corner plate (5) is fixedly connected to the split plate via screws (51).

5. The assembled finished fire-resistant air duct according to claim 1 is characterized in that: The fire-resistant heat-insulating board comprises a first fire-resistant heat-insulating board and a second fire-resistant heat-insulating board.

6. The assembled finished fire-resistant air duct according to claim 5 is characterized in that: The first fire-resistant heat-insulating board is a glass wool board (7), and the second fire-resistant heat-insulating board is an aluminum silicate board (6).

7. The assembled finished fire-resistant air duct according to claim 1 is characterized in that: Reinforcement rods (21) are fixedly connected at the four inner corners of the tube body (2).

8. The assembled finished fire-resistant air duct according to claim 1 is characterized in that: The first connecting flange (1) is provided with a positioning groove (11), and the second connecting flange (3) is provided with a positioning protrusion (31), and the positioning protrusion (31) cooperates with the positioning groove (11).

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