Exhaust passage assembled by metal components

Abstract

The invention belongs to the technical field of exhaust passage systems, and provides a metal component assembled exhaust passage which is formed by vertically stacking and assembling a plurality of metal components and penetrating through a floor reserved hole of a building internal corner, the top end and the bottom end of each metal component are each provided with a folded edge, and the folded edges of every two adjacent metal components are stacked and locked and fixed through a locking piece. An opening of the floor reserved hole is large in upper end and small in lower end, the folded edge is arranged in the opening and fixed through slurry, an isolation layer is arranged between the slurry and the outer wall of the metal component assembly exhaust passage, the metal component assembly exhaust passage is provided with an air inlet corresponding to each residence floor, the bottom of the metal component assembly exhaust passage is sealed, and the top of the metal component assembly exhaust passage is provided with an opening. And an air cap is arranged at the top opening. According to the metal component, the folded edges are additionally arranged at the top end and the bottom end of the metal component, the reserved hole is large in upper end and small in lower end, the folded edges play a role in fixing and supporting after backfilled slurry is solidified, no extra supporting component needs to be added, fixing is achieved through the locking piece, operation is easy, and cost is low.

Description

Technical Field

[0001] This application belongs to the field of exhaust duct system technology, and more specifically, relates to an exhaust duct assembled with metal components in a residential kitchen. Background Technology

[0002] Currently, some exhaust ducts in residential kitchens are constructed by enclosing the walls with thin-walled concrete components, while others are assembled from metal components. For exhaust ducts assembled from metal components, the metal components are fixed together by electric welding. The quality of the welding directly affects the quality of the exhaust duct, and welding quality is greatly affected by human factors. This requires highly skilled and responsible welders, and the process is complex and costly. In addition, the welded metal components require additional support for the exhaust duct, resulting in high construction costs and low efficiency. Summary of the Invention

[0003] The purpose of this application is to provide an exhaust duct for assembling metal components, which aims to solve the technical problems in the prior art such as uncontrollable welding quality of exhaust ducts for assembling metal components, the need for additional exhaust duct support, and high construction costs.

[0004] To achieve the above objectives, the technical solution adopted in this application embodiment is as follows: a metal component assembly exhaust duct, which is formed by stacking multiple metal components and passing through a reserved hole in the floor slab at the corner of the building. Each metal component has a folded edge at its top and bottom. The folded edges of two adjacent metal components are stacked and locked and fixed by locking components. The reserved hole in the floor slab has a larger opening at the top and a smaller opening at the bottom. The folded edge is located in the opening and fixed by grout backfilled in the opening. An isolation layer is provided between the grout and the outer wall of the metal component assembly exhaust duct. The metal component assembly exhaust duct has an air inlet corresponding to each residential floor. The bottom of the metal component assembly exhaust duct is sealed, and the top has an opening. A wind cap is provided at the top opening to prevent rainwater from entering.

[0005] Specifically, the isolation layer is a film, a waterproof coating, an ointment, or a metal sleeve.

[0006] Specifically, the metal component has a fixing hole on its folded edge, and the locking member passes through the fixing hole to lock and fix the folded edges of adjacent metal components.

[0007] Specifically, the locking element is a bolt or a rivet.

[0008] Specifically, a sealing groove is provided between the two folded edges of two adjacent overlapping metal components.

[0009] Specifically, the metal component is provided with reinforcing ribs or has convex and concave reinforcing parts.

[0010] Specifically, the air inlet is provided with a valve at the air inlet end and a guide or a flow guide and pressure transformer device composed of a guide and a surrounding plate at the air outlet end; or, the air inlet is provided with a branch pipe, the air inlet end of the branch pipe is provided with a valve and the air outlet end of the branch pipe is provided with a guide or a flow guide and pressure transformer device composed of a guide and a surrounding plate.

[0011] Specifically, the valve is a fireproof check valve, a flow-directing fireproof check valve, a pressure-variable fireproof check valve, or an electrically controlled multi-functional valve.

[0012] Specifically, the cross-section of the metal component is circular or polygonal.

[0013] Specifically, the metal component assembly exhaust duct is surrounded by an L-shaped structure, which is formed by L-shaped precast cement components, blocks, or panels.

[0014] In this application, folded edges are added to the top and bottom of the metal components. After stacking, they are fixedly connected and assembled by locking parts to form an exhaust channel. The upper end of the opening is larger and the lower end is smaller. When the folded edges are placed in the opening, the backfilled grout solidifies and fixes the folded edges. In this way, the entire exhaust channel does not need to add additional supporting parts. Fixing and support are completed at the same time as assembly. It is fixed by locking parts, which is easy to operate and has low cost. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a longitudinal sectional view of the metal component assembly exhaust channel provided in Embodiment 1 of this application; Figure 2 for Figure 1 A schematic diagram of the cross-section; Figure 3 This is a cross-sectional view of the metal component assembly exhaust channel provided in Embodiment 2 of this application; Figure 4 This is a longitudinal cross-sectional view of the metal component assembly exhaust channel provided in Embodiment 3 of this application; Figure 5 for Figure 4 A schematic diagram of its cross-section.

[0017] 10-Metal component; 11-Folded edge; 12-Fixing hole; 20 - Metal component assembly exhaust duct; 21 - Locking element; 22 - Sealing seal; 23 - Air inlet; 30 - Reserved opening; 31 - Grout; 40-branch pipe; 50-Valve; 51-Flow guide; 52-Flow guide transformer; 53-Enclosure; 60 - Building internal corner; 61 - Leveling layer; 70-hood; 80-L shaped structural member; 90- Ceiling. Detailed Implementation

[0018] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0019] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0020] It should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, and "several" means one or more, unless otherwise explicitly specified. Example

[0022] Reference Figure 1 , Figure 2 This application provides a metal component assembly exhaust duct 20, which is formed by stacking multiple metal components 10 and passing them through a pre-reserved hole 30 in the floor slab at the building's internal corner 60. In this embodiment, the cross-section of the metal component 10 is square. Each metal component 10 has a folded edge 11 at both its top and bottom ends, and the folded edges 11 of adjacent metal components 10 are stacked and locked together by a locking member 21. Figure 1As can be seen, the pre-reserved opening 30 in the floor slab is larger at the top and smaller at the bottom. The folded edge 11 is located inside the opening and fixed by the grout 31 backfilled inside the opening. An isolation layer (not shown in the figure) is provided between the grout 31 and the outer wall of the metal component assembly exhaust duct 20. The metal component assembly exhaust duct 20 is provided with an air inlet 23 for each residential floor. The bottom of the metal component assembly exhaust duct 20 is sealed, and the top has an opening, with a wind cap 70 at the top opening to prevent rainwater from entering.

[0023] In this embodiment, folded edges 11 are added to the top and bottom of the metal component 10. After being stacked, they are fixedly connected and assembled by locking member 21 to form an exhaust channel. The upper end of the opening is larger and the lower end is smaller. When the folded edge 11 is placed in the opening, the backfilled grout 31 solidifies and fixes the folded edge 11. In this way, the entire exhaust channel does not need to add additional supporting components. Fixing and support are completed at the same time as assembly. It is fixed by locking member 21, which is easy to operate and has low cost.

[0024] Furthermore, in this embodiment, the isolation layer is a thin film, a waterproof coating, an ointment, or a metal sleeve. The isolation layer prevents the slurry 31 from corroding the metal component 10 and enhances the durability of the metal component assembly exhaust duct 20.

[0025] Specifically, the flange 11 of the metal component 10 is provided with a fixing hole 12, and the locking member 21 passes through the fixing hole 12 to lock and fix the flange 11 of the adjacent metal component 10. The locking member 21 can be a bolt or a rivet, and different locking members 21 can be selected according to the actual site conditions.

[0026] Furthermore, to enhance the sealing performance of two adjacent metal components 10, a sealing seal 22 is provided between the two overlapping edges 11 of the two adjacent metal components 10. The sealant 22 is a fire-retardant sealant, a weather-resistant sealant, or a structural sealant.

[0027] Furthermore, to enhance the strength of the metal component 10, reinforcing ribs (not shown in the figure) may be added to the metal component 10 or convex and concave reinforcing parts (not shown in the figure) may be provided on the metal component 10.

[0028] In this embodiment, the air inlet 23 is provided with a branch pipe 40, the air inlet end of the branch pipe 40 is provided with a valve 50, and the air outlet end of the branch pipe 40 is provided with a guide member 51. The valve 50 at the air inlet end can be opened or closed to prevent smoke from flowing back into the kitchen from the exhaust duct 20 assembled with metal components, and to prevent the spread of fire in the event of a fire. The guide member 51 at the air outlet end ensures smoother exhaust flow within the exhaust duct.

[0029] Specifically, valve 50 can be a fireproof check valve, a flow-directing fireproof check valve, a variable-pressure fireproof check valve, or an electrically controlled multi-functional valve.

[0030] In this embodiment, an L-shaped structure 80 is provided around the metal component assembly exhaust duct 20. The L-shaped structure 80 is an L-shaped precast cement component. The L-shaped precast cement component has sound and heat insulation properties and is made of thin-walled cement, resulting in low cost and minimal space occupation. Of course, the L-shaped structure 80 can also be formed by blocks or panels.

[0031] In this embodiment, the bottom of the metal component assembly exhaust duct 20 is located on the ground and sealed by the leveling layer 61. This sealing method can better withstand the impact of objects falling into the exhaust duct. Of course, the bottom of the exhaust duct can also be left off the ground and sealed by welding or bolting metal plates. Example

[0032] Reference Figure 3 The metal component assembly exhaust duct 20 provided in Embodiment 2 of this application differs from Embodiment 1 in that the cross-sectional shape of the metal component 10 is different; in this embodiment, the cross-section of the metal component 10 is circular. Other structures in this embodiment are the same as in Embodiment 1, and will not be described again here. Example

[0033] Reference Figure 4 , Figure 5 The metal component assembly exhaust duct 20 provided in Embodiment 3 of this application differs from Embodiment 1 in that the air inlet 23 of the metal component 10 does not have a branch pipe 40. Instead, a valve 50 is provided at the air inlet end of the air inlet 23, and a flow guiding and pressure transforming device 52, composed of a flow guide 51 and a surrounding plate 53, is provided at the air outlet end. In this embodiment, the L-shaped structure 80 surrounding the metal component assembly exhaust duct 20 only reaches the ceiling 90 in height. Other structures in this embodiment are the same as in Embodiment 1 and will not be described again here.

[0034] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application.

Claims

1. A metal component assembly exhaust duct, formed by stacking and assembling multiple metal components and passing through a pre-reserved hole in the floor slab at the corner of a building, characterized in that: Each of the metal components has a folded edge at its top and bottom. The folded edges of two adjacent metal components are stacked and locked together by locking devices. The opening of the reserved hole in the floor slab is larger at the top and smaller at the bottom. The folded edge is located in the opening and fixed by grout backfilled in the opening. An isolation layer is provided between the grout and the outer wall of the exhaust duct of the metal component assembly. The exhaust duct of the metal component assembly has an air inlet corresponding to each residential floor. The bottom of the exhaust duct of the metal component assembly is sealed and the top has an opening. A wind cap is provided at the top opening to prevent rainwater from entering.

2. The metal component assembly exhaust duct according to claim 1, characterized in that: The isolation layer is a film, waterproof coating, grease, or metal sleeve.

3. The metal component assembly exhaust duct according to claim 1, characterized in that: The metal component has a fixing hole on its folded edge, and the locking member passes through the fixing hole to lock and fix the folded edges of adjacent metal components.

4. The metal component assembly exhaust duct according to claim 1 or 3, characterized in that: The locking element is a bolt or a rivet.

5. The metal component assembly exhaust duct according to claim 1, characterized in that: A sealing seal is provided between the two folded edges of two adjacent overlapping metal components.

6. The metal component assembly exhaust duct according to claim 1, characterized in that: The metal component is provided with reinforcing ribs or has convex and concave reinforcing parts.

7. The metal component assembly exhaust duct according to claim 1, characterized in that: The air inlet is provided with a valve at the air inlet end and a guide or a flow guide and pressure transformer device composed of a guide and a surrounding plate at the air outlet end; or, the air inlet is provided with a branch pipe, the air inlet end of the branch pipe is provided with a valve and the air outlet end of the branch pipe is provided with a guide or a flow guide and pressure transformer device composed of a guide and a surrounding plate.

8. The metal component assembly exhaust duct according to claim 1, characterized in that: The valve is a fireproof check valve, a flow-directing fireproof check valve, a variable-pressure fireproof check valve, or an electrically controlled multi-functional valve.

9. The metal component assembly exhaust duct according to claim 1, characterized in that: The cross-section of the metal component is circular or polygonal.

10. The metal component assembly exhaust duct according to claim 1, characterized in that: The metal component assembly exhaust duct is surrounded by an L-shaped structure, which is formed by L-shaped precast cement components, blocks, or panels.

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