Fire resistant duct

Abstract

The utility model discloses a fire -proof air pipe relates to fire -proof air pipe technical field, include: pipe body, first reinforced plate, second reinforced plate, reinforced support subassembly, first reinforced plate is equipped with two, is closely adhered to the left and right two sides inner wall of pipe body respectively, second reinforced plate is equipped with two, is embedded in the upper and lower inner wall of pipe body respectively, and the both ends of second reinforced plate are connected with two first reinforced plates respectively, adopt the fire -resistant reinforced structure of inner clamping type, through two first reinforced plates closely adhere to the both sides inner wall of pipe body, then set up two second reinforced plates on the upper and lower inner wall of pipe body, after the inner clamping of two first reinforced plates, form square -shaped fire -resistant reinforced structure, and the dismounting is convenient, then vertically install into a plurality of reinforced support subassembly, to the inner clamping fixed of second reinforced plate, strengthen the overall structure stability of fire -proof air pipe simultaneously, improve the compression resistance.

Description

Technical Field

[0001] This utility model relates to the field of fireproof air duct technology, and more specifically to a fireproof air duct. Background Technology

[0002] Fire-resistant air ducts are key building components made of non-combustible and fire-resistant materials. They are designed to isolate the spread of fire and maintain ventilation and smoke extraction functions in the event of a fire, and must meet the fire resistance rating standards required by regulations.

[0003] To improve fire resistance, existing fireproof ducts have added fire-resistant and heat-insulating structures to their inner walls. The connection methods used are adhesive bonding or bolt fixing. The former is not convenient for disassembly and maintenance, while the latter will damage the structure of the duct and reduce its overall structural stability. Utility Model Content

[0004] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention may be realized and obtained by means of the structures particularly pointed out in the description and other accompanying drawings.

[0005] The purpose of this utility model is to overcome the above-mentioned shortcomings and provide a fireproof air duct.

[0006] To achieve the above objectives, the technical solution of this utility model is: a fireproof air duct, comprising: a duct body, a first reinforcing plate, a second reinforcing plate, and a reinforcing support assembly; two first reinforcing plates are provided, which are respectively tightly attached to the inner walls of the left and right sides of the duct body; two second reinforcing plates are provided, which are respectively embedded in the upper and lower inner walls of the duct body, and the two ends of the second reinforcing plates are respectively connected to the two first reinforcing plates, so that the second reinforcing plates cooperate with the duct body to clamp and fix the first reinforcing plates; the reinforcing support assembly is located between the two second reinforcing plates to cooperate with the duct body to clamp and fix the second reinforcing plates.

[0007] As a preferred option, in order to form natural reinforcing ribs at the four corners and improve resistance to deformation, the tube body is a square tube structure.

[0008] Preferably, for connection and positioning, the upper and lower inner walls of the tube are respectively provided with assembly grooves that fit tightly into the second reinforcing plate.

[0009] Preferably, in order for the upper structure to clamp the first reinforcing plate and the lower structure to be embedded in the assembly groove, the cross-section of the second reinforcing plate is T-shaped.

[0010] Preferably, in order to internally clamp the second reinforcing plate and enhance the stability of the overall structure of the fireproof air duct, the reinforcing support assembly includes a vertically arranged support rod and a clamping nut threaded to the upper and lower ends of the support rod. The upper and lower ends of the support rod are provided with external thread structures corresponding to the clamping nut, and the end of the clamping nut away from the support rod is embedded in the surface of the second reinforcing plate.

[0011] Preferably, in order to achieve a tight fit, the edge of the second reinforcing plate is provided with a clamping groove corresponding to the clamping nut.

[0012] Preferably, in order to shorten the operating distance of the clamping nut, the length of the support rod is equal to the distance between the two second reinforcing plates.

[0013] As a preferred option, in order to improve the support strength, several reinforced support components are provided at equal intervals.

[0014] As a preferred option, in order to reduce the wind resistance of the support rod, several guide holes are punched sequentially from top to bottom on the outer wall of the support rod.

[0015] The beneficial effects of this utility model are as follows: It adopts an internally clamped fire-resistant reinforced structure, with two first reinforcing plates tightly attached to both sides of the inner wall of the pipe, and two second reinforcing plates set on the upper and lower inner walls of the pipe. After clamping the two first reinforcing plates, a square tube-shaped fire-resistant reinforced structure is formed, which is convenient for disassembly and assembly. Then, several reinforcing support components are vertically installed to clamp and fix the second reinforcing plates, thereby enhancing the overall structural stability of the fireproof air duct and improving its compressive strength. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of a fireproof air duct according to the present invention;

[0017] Figure 2 This is a cross-sectional structural diagram of a fireproof air duct according to the present invention;

[0018] Figure 3 for Figure 2 A magnified cross-sectional structural diagram of section A;

[0019] Figure 4 This is a partial structural diagram of the support rod.

[0020] Reference numerals: tube body-1, first reinforcing plate-2, second reinforcing plate-3, reinforcing support assembly-4, assembly groove-11, support rod-41, clamping nut-42, external thread structure-43, clamping groove-31, guide hole-44. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0023] Please see Figure 1-4 This utility model provides a fireproof air duct, including: a duct body 1, a first reinforcing plate 2, a second reinforcing plate 3, and a reinforcing support assembly 4; two first reinforcing plates 2 are provided, which are tightly attached to the inner walls of the left and right sides of the duct body 1 respectively; two second reinforcing plates 3 are provided, which are embedded in the upper and lower inner walls of the duct body 1 respectively, and the two ends of the second reinforcing plates 3 are respectively connected to the two first reinforcing plates 2, so that the second reinforcing plates 3 cooperate with the duct body 1 to clamp and fix the first reinforcing plates 2; the reinforcing support assembly 4 is located between the two second reinforcing plates 3, so as to cooperate with the duct body 1 to clamp and fix the second reinforcing plates 3.

[0024] Among them, the first reinforcing plate 2 and the second reinforcing plate 3 are made of one or two of rock wool and magnesium crystal board, which take into account both strength and fire resistance.

[0025] According to some embodiments of this application, optionally, in order to form natural reinforcing ribs at the four corners and improve the resistance to deformation, the tube body 1 is a square tube structure.

[0026] According to some embodiments of this application, optionally, in order to perform connection and positioning, the upper and lower inner walls of the tube body 1 are respectively provided with assembly grooves 11 that fit tightly into the second reinforcing plate 3.

[0027] According to some embodiments of this application, optionally, in order for the upper structure to clamp the first reinforcing plate 2, the lower structure is embedded in the assembly groove 11, and the cross-section of the second reinforcing plate 3 is T-shaped.

[0028] According to some embodiments of this application, optionally, in order to internally clamp the second reinforcing plate 3 and enhance the stability of the overall structure of the fireproof air duct, the reinforcing support assembly 4 includes a vertically arranged support rod 41 and a clamping nut 42 threadedly connected to the upper and lower ends of the support rod 41. The upper and lower ends of the support rod 41 are provided with external thread structures 43 corresponding to the clamping nut 42. The end of the clamping nut 42 away from the support rod 41 is embedded in the surface of the second reinforcing plate 3.

[0029] According to some embodiments of this application, optionally, in order to achieve a tight fit, the edge of the surface of the second reinforcing plate 3 is provided with a clamping groove 31 corresponding to the clamping nut 42.

[0030] The fire-resistant reinforced structure is internally clamped. Two first reinforcing plates 2 are tightly attached to both sides of the inner wall of the pipe body 1, and two second reinforcing plates 3 are set on the upper and lower inner walls of the pipe body 1. After the two first reinforcing plates 2 are internally clamped, a square tube-shaped fire-resistant reinforced structure is formed, which is easy to disassemble and assemble. Then, several reinforcing support components 4 are vertically installed to clamp and fix the second reinforcing plates 3 internally, thereby enhancing the overall structural stability of the fireproof air duct and improving its compressive strength.

[0031] The installation process of the reinforced support assembly 4 is as follows: In the initial state, the top of the clamping nut 42 at both ends of the support rod 41 is flush with the end face of the support rod 41. After the support rod 41 is vertically placed between the two reinforced support assemblies 4, the clamping nut 42 is unscrewed while the support rod 41 remains stationary, so that the clamping nut 42 is embedded in the surface of the second reinforcing plate 3. After both the upper and lower clamping nuts 42 are embedded, the clamping work of the two reinforced support assemblies 4 is completed.

[0032] According to some embodiments of this application, optionally, in order to shorten the operating distance of the clamping nut 42, the length of the support rod 41 is equal to the distance between the two second reinforcing plates 3.

[0033] According to some embodiments of this application, optionally, in order to improve the support strength, a plurality of reinforced support components 4 are provided at equal intervals.

[0034] According to some embodiments of this application, optionally, in order to reduce the wind resistance of the support rod 41, a plurality of guide holes 44 are punched sequentially from top to bottom on the outer wall of the support rod 41.

[0035] It should be understood that the embodiments disclosed herein are not limited to the specific processing steps or materials disclosed herein, but should be extended to equivalent substitutions of such features as understood by those skilled in the art. It should also be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting.

[0036] The term "embodiment" in this specification refers to a specific feature or characteristic described in connection with an embodiment that is included in at least one embodiment of the present invention. Therefore, phrases or "embodiments" appearing in various places throughout the specification do not necessarily refer to the same embodiment.

[0037] Furthermore, the described features or characteristics may be incorporated into one or more embodiments in any other suitable manner. In the above description, specific details, such as thickness, quantity, etc., are provided to provide a comprehensive understanding of embodiments of the present invention. However, those skilled in the art will understand that the present invention can be implemented without the aforementioned one or more specific details or may be implemented using other methods, components, materials, etc.

Claims

1. A fireproof air duct, characterized in that, include: tube body(1); The first reinforcing plate (2) has two pieces, which are tightly attached to the inner walls of the left and right sides of the tube body (1); The second reinforcing plate (3) has two pieces, which are respectively embedded in the upper and lower inner walls of the tube body (1). The two ends of the second reinforcing plate (3) are respectively connected to the two first reinforcing plates (2), so that the second reinforcing plate (3) cooperates with the tube body (1) to clamp and fix the first reinforcing plate (2); The reinforcement support component (4) is located between the two second reinforcement plates (3) to cooperate with the tube body (1) to clamp and fix the second reinforcement plates (3).

2. A fireproof air duct according to claim 1, characterized in that, The tube body (1) is a square tube structure.

3. A fireproof air duct according to claim 2, characterized in that, The upper and lower inner walls of the tube body (1) are respectively provided with assembly grooves (11) that fit tightly into the second reinforcing plate (3).

4. A fireproof air duct according to claim 3, characterized in that, The second reinforcing plate (3) has a T-shaped cross-section.

5. A fireproof air duct according to claim 1, characterized in that, The reinforced support assembly (4) includes a vertically arranged support rod (41) and a clamping nut (42) threaded to the upper and lower ends of the support rod (41). The upper and lower ends of the support rod (41) are provided with external thread structures (43) corresponding to the clamping nut (42). The end of the clamping nut (42) away from the support rod (41) is embedded in the surface of the second reinforcing plate (3).

6. A fireproof air duct according to claim 5, characterized in that, The second reinforcing plate (3) has a clamping groove (31) on its surface edge that corresponds to the clamping nut (42).

7. A fireproof air duct according to claim 5, characterized in that, The length of the support rod (41) is equal to the distance between the two second reinforcing plates (3).

8. A fireproof air duct according to claim 5, characterized in that, The reinforced support components (4) are provided at equal intervals.

9. A fireproof air duct according to claim 5, characterized in that, The outer wall of the support rod (41) is punched with several guide holes (44) from top to bottom.

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