A reinforced prefabricated flue designed to address the problem of tile detachment.
Patent Information
- Application Number
- CN202521330309.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-26
- Publication Date
- 2026-09-01
- Estimated Expiration
- 2035-06-26
AI Technical Summary
但在工程实践中粘贴在烟道部位的墙砖非常容易脱落
[0013]与现有技术相比,本实用新型的针对贴砖脱落问题加强的成品烟道的优点为:
Smart Images

Figure CN224705433U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of flues, and in particular to a finished flue that is reinforced to address the problem of tile detachment. Background Technology
[0002] Currently, most residential buildings use prefabricated flues, which, as part of the kitchen space, require tile decoration. However, in practice, the wall tiles attached to the flue area are very prone to falling off. The reason for this is that prefabricated flues typically use 15mm thick cement fiberboard. Firstly, the cement mortar used for tiling has poor adhesion to the fiberboard, and the flue walls are often quite smooth, further affecting adhesion. Secondly, due to the thin flue walls, the flue is susceptible to deformation due to thermal expansion and contraction and micro-vibrations, further affecting the integrity and adhesion of the mortar. Utility Model Content
[0003] The purpose of this invention is to provide a finished flue that is reinforced to address the problem of tile detachment. This not only enhances the structural stability of the flue but also improves its resistance to deformation.
[0004] To achieve the above objectives, this utility model provides a finished flue that is reinforced to address the problem of tile detachment. It includes a cylindrical flue inner shell, with a mortar layer bonded to the outer wall of the inner shell and facing bricks bonded to the outside of the mortar layer. Multiple stiffening hoops are arranged sequentially along the length of the inner shell, and the stiffening hoops are fitted to the inner wall of the inner shell. Multiple bundles of steel fibers are connected to the stiffening hoops, with the outer ends of the steel fibers passing outward through the inner shell and located within the mortar layer.
[0005] As a further improvement of this utility model, the steel fiber includes a bent portion of the steel fiber embedded in the mortar layer, and the bent portion of the steel fiber extends toward the plane where the mortar layer is located.
[0006] As a further improvement of this utility model, the length of the bent portion of the steel fiber is 2cm-10cm.
[0007] As a further improvement of this utility model, each bundle of steel fibers comprises 2-10 steel fiber monomers.
[0008] As a further improvement of this utility model, the multiple bundles of steel fibers are arranged along the outer periphery of the stiffening hoop, and the spacing between adjacent bundles of steel fibers is 1-10cm.
[0009] As a further improvement of this utility model, the stiffening hoop is a metal stiffening hoop, which includes a square hoop and a rhombus hoop. The four corners of the rhombus hoop are welded to the middle of the four edges of the square hoop, and a hollow structure is formed between the square hoop and the rhombus hoop. The outer edge of the square hoop is attached to the inner wall of the flue inner shell. The inner end of the steel fiber is welded to the square hoop.
[0010] As a further improvement of this utility model, the inner shell of the flue is located inside the building masonry wall and vertically passes through the building structural floor slab, and the inner wall of the building masonry wall and the outer wall of the flue inner shell are bonded together by the mortar layer.
[0011] As a further improvement of this utility model, the mortar layer is made of waterproof mortar.
[0012] Beneficial effects
[0013] Compared with existing technologies, the advantages of the finished flue gas duct of this invention, which is reinforced to address the problem of tile detachment, are as follows:
[0014] 1. Because the outer ends of the steel fibers on the stiffening hoop extend outward through the inner shell of the flue and are located within the mortar layer, the stiffening hoop can be fixed to the inner wall of the flue shell on one hand, and it can also be tied to the mortar layer when tiling, thus preventing the mortar layer from cracking and falling off. This design not only enhances the structural stability of the flue, but also improves its resistance to deformation.
[0015] 2. The bent part of the steel fiber extends towards the plane of the mortar layer, which can increase the adhesion of the steel fiber in the mortar layer, greatly reduce the probability of the steel fiber sliding relative to the mortar layer, and improve the connection stability.
[0016] 3. In the stiffening hoop, the four corners of the diamond hoop are welded to the center of the four edges of the square hoop, which improves the rigidity of the stiffening hoop.
[0017] 4. The mortar layer is waterproof mortar, which not only provides additional waterproof protection but also enhances the durability of the flue. The hollow structure of the flue's reinforcing hoops helps with heat insulation and noise reduction, while also reducing the overall structural weight.
[0018] The present invention will become clearer from the following description and in conjunction with the accompanying drawings, which are used to explain the embodiments of the present invention. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, 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 utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 A top view of the finished flue gas duct reinforced to address the issue of tile detachment;
[0021] Figure 2 Top view of the stiffening hoop and steel fibers;
[0022] Figure 3 for Figure 1 AA view;
[0023] Figure 4 for Figure 3 Enlarged view of point B. Detailed Implementation
[0024] Embodiments of the present invention will now be described with reference to the accompanying drawings.
[0025] Example
[0026] The specific embodiments of this utility model are as follows: Figures 1 to 4 As shown, a reinforced flue designed to address the problem of tile detachment includes a cylindrical inner shell 3. A mortar layer 4 is bonded to the outer wall of the inner shell 3, and facing bricks 5 are bonded to the outer side of the mortar layer 4. Multiple reinforcing hoops 1 are arranged sequentially along the length of the inner shell 3. The reinforcing hoops 1 are fitted to the inner wall of the inner shell 3, and multiple bundles of steel fibers 2 are attached to the reinforcing hoops 1. The outer ends of the steel fibers 2 extend outward through the inner shell 3 and are located within the mortar layer 4. The steel fibers 2 are generally wavy.
[0027] The mortar layer 4 uses waterproof mortar, which not only provides additional waterproof protection but also enhances the durability of the flue. The inner shell of the flue is made of cement fiberboard.
[0028] The steel fiber 2 includes a bent portion 21 embedded in the mortar layer 4, which extends toward the plane of the mortar layer 4. Specifically, the bent portion 21 can extend upward or downward within the mortar layer 4, or it can extend laterally within the mortar layer 4, as long as its extension direction is located in the plane of the mortar layer 4 and is always within the mortar layer 4.
[0029] The length of the steel fiber bend 21 is 2cm-10cm. In this embodiment, the length of the steel fiber bend 21 is 6cm.
[0030] Each bundle of steel fibers 2 comprises 2-10 steel fiber monomers. In this embodiment, each bundle of steel fibers 2 comprises 4 steel fiber monomers, such as... Figure 4 As shown.
[0031] Multiple bundles of steel fibers 2 are arranged along the outer periphery of the stiffening hoops 1, with a spacing of 1-10 cm between adjacent bundles. In this embodiment, the spacing between adjacent bundles is 4 cm. The spacing between adjacent upper and lower stiffening hoops 1 within the inner cavity of the flue inner shell 3 is 20-50 cm.
[0032] The stiffening hoop 1 is a metal stiffening hoop, which includes a square hoop 11 and a rhombus hoop 12. The four corners of the rhombus hoop 12 are welded to the center of the four edges of the square hoop 11, forming a hollow structure 6 between the square hoop 11 and the rhombus hoop 12. Figure 2As shown. The outer edge of the square hoop 11 fits against the inner wall of the flue inner shell 3. The inner end of the steel fiber 2 is welded to the square hoop 11 by pressure welding. Under normal circumstances, the metal stiffening hoop is only connected to the flue inner shell 3 by the steel fiber 2. As an optional measure, a toothed structure can be stamped on the stiffening hoop 1, and the toothed structure can be bent horizontally. During the subsequent forming of the flue wall, the connection can be achieved by embedding the toothed structure on the stiffening hoop 1 into the inner wall of the flue inner shell 3.
[0033] The inner shell of the flue 3 is located inside the masonry wall 7 and vertically passes through the structural floor slab 9. The inner wall of the masonry wall 7 and the outer wall of the inner shell of the flue 3 are bonded together by a mortar layer 4. The masonry wall 7 is connected to the upper part of the building structure 8, and the inner shell of the flue 3 is located between the building structure 8 and the structural floor slab 9. Figure 3 As shown.
[0034] In this embodiment, the inner shell 3 of the flue has a square cross-section. Two of the perpendicular outer walls of the inner shell 3 are adjacent to the masonry wall 7, and the other two perpendicular outer walls of the inner shell 3 are covered with facing bricks 5 by mortar layer 4. The masonry wall 7 and the building structural floor slab 9 constitute the external support structure of the flue, ensuring the stability and safety of the flue. The building structure 8 plays a key supporting role in the entire system, ensuring the stability of the flue under various environmental conditions.
[0035] Through the above design, the flue is not only structurally strengthened but also more functionally diversified. The combined use of metal stiffeners and steel fibers makes the flue more stable under external pressure and temperature changes, reducing deformation and damage caused by thermal expansion and contraction. Simultaneously, the use of waterproof mortar effectively prevents moisture penetration, protecting the internal structure of the flue from the effects of a humid environment. This not only extends the service life of the flue but also enhances its adaptability to various environmental conditions, demonstrating high practical value and potential for widespread application.
[0036] The present invention has been described above in conjunction with the preferred embodiments, but the present invention is not limited to the embodiments disclosed above, but should cover various modifications and equivalent combinations made in accordance with the essence of the present invention.
Claims
1. A finished flue reinforced to address the problem of tile detachment, comprising a cylindrical flue inner shell (3), characterized in that, The outer wall of the flue inner shell (3) is bonded with a mortar layer (4), and the outer side of the mortar layer (4) is bonded with facing bricks (5); the inside of the flue inner shell (3) is provided with a number of stiffening hoops (1) arranged in sequence along its length direction. The stiffening hoops (1) are attached to the inner wall of the flue inner shell (3). Multiple bundles of steel fibers (2) are connected to the stiffening hoops (1). The outer ends of the steel fibers (2) pass outward through the flue inner shell (3) and are located in the mortar layer (4).
2. A finished flue reinforced to address the problem of tile detachment as described in claim 1, characterized in that, The steel fiber (2) includes a bent portion (21) of steel fiber embedded in the mortar layer (4), and the bent portion (21) of steel fiber extends toward the plane of the mortar layer (4).
3. A finished flue reinforced to address the problem of tile detachment as described in claim 2, characterized in that, The length of the steel fiber bending section (21) is 2cm-10cm.
4. A finished flue reinforced to address the problem of tile detachment as described in claim 1, characterized in that, Each bundle of steel fibers (2) comprises 2-10 individual steel fibers.
5. A finished flue gas duct reinforced to address the problem of tile detachment according to claim 1, characterized in that, The multiple bundles of steel fibers (2) are arranged along the outer periphery of the stiffening hoop (1), and the spacing between adjacent bundles of steel fibers (2) is 1-10cm.
6. A finished flue reinforced to address the problem of tile detachment according to claim 1, characterized in that, The stiffening hoop (1) is a metal stiffening hoop, which includes a square hoop (11) and a rhombus hoop (12). The four corners of the rhombus hoop (12) are welded to the middle of the four edges of the square hoop (11), and a hollow structure (6) is formed between the square hoop (11) and the rhombus hoop (12). The outer edge of the square hoop (11) is attached to the inner wall of the flue inner shell (3). The inner end of the steel fiber (2) is welded to the square hoop (11).
7. A finished flue reinforced to address the problem of tile detachment as described in claim 1, characterized in that, The inner shell of the flue (3) is located inside the building masonry wall (7) and passes vertically through the building structural floor slab (9). The inner wall of the building masonry wall (7) and the outer wall of the inner shell of the flue (3) are bonded together by the mortar layer (4).
8. A finished flue reinforced to address the problem of tile detachment according to claim 1, characterized in that, The mortar layer (4) is made of waterproof mortar.