Rectangular air pipe through-wall structure
By installing hangers and connecting them with embedded parts on rectangular ducts, the problem of lack of stable support for rectangular ducts in wall penetrations is solved, enabling stable duct penetration through walls and improving construction safety and economic efficiency.
Patent Information
- Application Number
- CN202520613299.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-02
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2035-04-02
AI Technical Summary
The rectangular duct lacks stable and reliable support in the wall through-hole, resulting in unstable support.
By installing hangers on rectangular ducts during building construction, and fixing them with hangers, the fire dampers at the wall penetration points of the rectangular ducts are fixed by hangers. The wall penetration points and floor slab construction points include embedded parts, fixing rings and insulation layers. The hangers are connected to the embedded parts to enhance the stability of the ducts.
It enhances the stability of rectangular ducts penetrating walls, ensures the safety of fire dampers, and has been widely adopted and promoted, resulting in good economic benefits.
Smart Images

Figure CN223754848U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the field of building construction, in particular to a rectangular air pipe wall-penetrating structure. BACKGROUND
[0002] The air pipe is generally rectangular, and the wall body is provided with a through hole for the rectangular air pipe to pass through, and the wall body provides support for the rectangular air pipe through the hole wall. Limited by the thickness of the wall body, the length of the through hole is generally short, and the rectangular air pipe cannot be stably and reliably supported. CONTENT OF THE UTILITY MODEL
[0003] The utility model aims at providing a rectangular air pipe wall-penetrating structure to solve the technical problem that the rectangular air pipe is not stably and reliably supported in the prior art.
[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:
[0005] A rectangular air pipe wall-penetrating structure, a fire damper is arranged on the rectangular air pipe at a distance of 150-200 mm from a wall-penetrating node, and the fire damper is fixed through a hanger, characterized in that: the wall-penetrating structure comprises a wall-penetrating construction node and a floor-penetrating construction node, the wall-penetrating construction node and the floor-penetrating construction node are the same in structure and each comprises a reserved hole, a pre-embedded part, a fixed ring and a thermal insulation layer, the rectangular air pipe passes through the center part of the reserved hole, the gap between the rectangular air pipe and the inner wall of the reserved hole is filled with the thermal insulation layer, the thermal insulation layer is a hydrophobic centrifugal glass wool, the pre-embedded part is in an angular structure, the re-embedded part is provided with a buried reinforcing bar at the inner corner part of the angular structure, the vertical plate of the angular structure is arranged in close contact with the inner wall of the reserved hole, the horizontal plate of the angular structure is arranged in close contact with the outer wall of the wall plate or the floor, and the fixed ring is welded and fixed with the bottom wall of the horizontal plate of the angular structure.
[0006] Further preferably, the area of the central hole of the fixed ring is adapted to the cross-sectional area of the rectangular air pipe.
[0007] Further, an angular reinforcing part is arranged between the fixed ring and the rectangular air pipe, and the angular reinforcing part is arranged in parallel with the pre-embedded part.
[0008] Further, the thickness of the thermal insulation layer is adapted to the distance between the rectangular air pipe and the inner wall of the reserved hole, and the thickness of the thermal insulation layer is 50-60 mm.
[0009] Further, the rectangular air pipe is wrapped with at least 2 m of hydrophobic centrifugal glass wool plate on both sides of the wall body or the floor.
[0010] In addition, a construction node at a deformation joint of the wall body is also included, and the construction node at the deformation joint of the wall body comprises an inner wall-penetrating construction node and an outer wall-penetrating construction node, the inner wall-penetrating construction node is the same in structure as the wall-penetrating construction node, and the outer wall-penetrating construction node only comprises a fixed ring and a thermal insulation layer.
[0011] More preferably, the corner structure is made of angle steel.
[0012] Compared with the prior art, the utility model has the following characteristics and beneficial effects:
[0013] The application has the characteristics of safety and applicability by setting the embedded part, the corner reinforcing part and the hanging bracket, has good popularization and practical value, and will produce good economic benefits after wide popularization and application. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 It is a construction node structure schematic view of the floor slab penetrating construction involved in the application;
[0015] Figure 2 It is a construction node structure schematic view of the wall penetrating construction involved in the application;
[0016] Figure 3 It is a construction node structure schematic view of the wall deformation joint involved in the application;
[0017] Figure 4 It is a hanging bracket structure schematic view involved in the application.
[0018] The drawing mark: 1-rectangular air pipe; 2-fire damper; 3-hanging bracket; 4-reserved hole; 5-embedded part; 6-fixing ring; 7-thermal insulation layer; 8-embedded reinforcement; 9-corner reinforcing part; 10-wall deformation joint. DETAILED DESCRIPTION
[0019] In order to make the technical means, the innovative features, the purposes and the effects achieved by the utility model easy to understand, the utility model is further explained as follows.
[0020] The embodiments described herein are specific concrete embodiments of the utility model, are explanatory and exemplary, and should not be interpreted as limiting the embodiments and the scope of the utility model. In addition to the embodiments described herein, those skilled in the art can also adopt other technical solutions that are obvious based on the contents disclosed in the claims and the description of the application, and these technical solutions include technical solutions that make any obvious replacement and modification to the embodiments described herein.
[0021] Embodiment 1
[0022] A rectangular air pipe wall penetrating structure, such as Figures 1-4As shown, the fire damper 2 is arranged on the rectangular air duct 1 at a distance of 200 mm from the through-wall node 150, and the fire damper 2 is fixed by a hanger 3. The through-wall structure includes a through-wall construction node and a through-floor construction node, and the through-wall construction node and the through-floor construction node are of the same structure and each include a reserved hole 4, a pre-embedded part 5, a fixed ring 6, and a thermal insulation layer 7. The rectangular air duct 1 passes through the center of the reserved hole 4, and the gap between the rectangular air duct 1 and the inner wall of the reserved hole 4 is filled with the thermal insulation layer 7. The thermal insulation layer 7 is a hydrophobic centrifugal glass wool. The pre-embedded part 5 is of an angular structure, and the reentrant corner part of the angular structure is provided with a buried reinforcing bar 8. The vertical plate of the angular structure is arranged in close contact with the inner wall of the reserved hole 4, and the horizontal plate of the angular structure is arranged in close contact with the outer wall of the wall or floor, that is, it is arranged around the reentrant corner part of the bottom of the reserved hole 4. The fixed ring 6 is welded and fixed with the bottom wall of the horizontal plate of the angular structure. The central hole area of the fixed ring 6 is adapted to the cross-sectional area of the rectangular air duct 1. An angular reinforcing part 9 is arranged between the fixed ring 6 and the rectangular air duct 1, and the angular reinforcing part 9 is arranged in parallel with the pre-embedded part 5. The thickness of the thermal insulation layer 7 is adapted to the distance between the rectangular air duct 1 and the inner wall of the reserved hole 4. The thickness of the thermal insulation layer 7 is 50-60 mm. The rectangular air duct 1 is wrapped with at least 2 m of hydrophobic centrifugal glass wool board on the wall or floor.
[0023] Example 2
[0024] Based on example 1, the wall deformation joint 10 is also included. The wall deformation joint 10 includes an inner through-wall construction node and an outer through-wall construction node. The inner through-wall construction node is of the same structure as the through-wall construction node. The outer through-wall construction node only includes the fixed ring 6 and the thermal insulation layer 7. The angular structure is made of angle steel.
[0025] The hanger includes at least two full toothed lead screws and first and second C-shaped channel steels fixed between the two full toothed lead screws. The space between the first and second C-shaped channel steels is a rectangular air duct installation space. The full toothed lead screws are fixed with the floor support plate through anti-seismic anchor bolts. The first C-shaped channel steel is further provided with a stiffening device above the full toothed lead screw. The stiffening device includes a C-shaped channel steel and an omega-shaped pressing block. The C-shaped channel steel is sleeved on the full toothed lead screw, and the full toothed lead screw is pressed and fixed with the C-shaped channel steel through the omega-shaped pressing block. The omega-shaped pressing block 9 includes a pressing block body, a screw rod, and a stop piece. The pressing block body is omega-shaped. The screw rod is a double-step screw rod including a coarse screw rod threadedly connected with the stop piece and a fine screw rod for limiting the pressing block body. The opening diameter of the elliptical top of the pressing block body is smaller than that of the coarse screw rod and larger than that of the fine screw rod. The fine screw rod passes through the opening and is fixed by double nuts to limit the pressing block body. The two nuts of the double nuts are respectively fixed on the two sides of the pressing block body, mainly serving to limit and non-fixedly fix the pressing block body. The pressing block body can rotate freely on the coarse screw rod.
[0026] In addition to the derrick, the main support structure of the application is formed by C-shaped channel steel, the bottom plate of the C-shaped channel steel should be uniformly and spacedly provided with bolt holes (oval holes), the side plate should be relatively provided with a curled edge, the side plate should also be spacedly provided with bolt holes according to the need, specifically, the back plate of the first C-shaped channel steel and the second C-shaped channel steel are both uniformly and spacedly provided with oval holes, and both are provided with a notch downward, the bottom surface of the first C-shaped channel steel and the top surface of the second C-shaped channel steel are both fixed with rubber washers through screws.
[0027] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above, for those skilled in the art, obviously, the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic features of the utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the utility model is defined by the appended claims rather than the above description, therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.
[0028] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.
Claims
1. A rectangular duct wall-penetrating structure, wherein a fire damper (2) is provided on the rectangular duct (1) at a distance of 150-200mm from the wall-penetrating node, and the fire damper (2) is fixed by a hanger (3), characterized in that: The wall-penetrating structure comprises a wall-penetrating construction node and a floor-penetrating construction node, and the wall-penetrating construction node and the floor-penetrating construction node are structurally identical and each comprises a reserved hole (4), a pre-embedded part (5), a fixing ring (6) and a thermal insulation layer (7), the rectangular air pipe (1) penetrates the center of the reserved hole (4), the gap between the rectangular air pipe (1) and the inner wall of the reserved hole (4) is filled with the thermal insulation layer (7), the thermal insulation layer (7) is a hydrophobic centrifugal glass wool, the pre-embedded part (5) has an angular structure in cross section, the re-embedded part (5) is provided with a buried reinforcing bar (8) at the inner corner of the angular structure, the vertical plate of the angular structure is arranged in close contact with the inner wall of the reserved hole (4), and the horizontal plate of the angular structure is arranged in close contact with the outer wall of the wall or the floor, and the fixing ring (6) is welded and fixed to the bottom wall of the horizontal plate of the angular structure.
2. A rectangular duct wall -penetrating structure according to claim 1, characterized in that: The central hole area of the fixing ring (6) is adapted to the cross-sectional area of the rectangular air pipe (1).
3. A rectangular duct wall penetrating structure according to claim 1, wherein: An angular reinforcing part (9) is arranged between the fixing ring (6) and the rectangular air pipe (1), and the angular reinforcing part (9) is arranged in parallel with the pre-embedded part (5).
4. A rectangular duct wall penetrating structure according to claim 1, characterized in that: The thickness of the thermal insulation layer (7) is adapted to the distance between the rectangular air pipe (1) and the inner wall of the reserved hole (4), and the thickness of the thermal insulation layer (7) is 50-60 mm.
5. A rectangular duct wall penetrating structure according to claim 1, wherein: The rectangular air pipe (1) is wrapped with at least 2 m of hydrophobic centrifugal glass wool plate on both sides of the wall or the floor.
6. A rectangular duct wall penetrating structure according to claim 1, characterized in that: The wall-penetrating structure further comprises a construction node at a wall deformation joint (10), and the construction node at the wall deformation joint (10) comprises an inner wall-penetrating construction node and an outer wall-penetrating construction node, the inner wall-penetrating construction node is structurally identical to the wall-penetrating construction node, and the outer wall-penetrating construction node only comprises the fixing ring (6) and the thermal insulation layer (7).
7. A rectangular air duct wall -passing structure according to any one of claims 1 to 6, wherein: The angular structure is made of angle steel.