Rectangular section flue mounting structure

Abstract

The utility model discloses a rectangular section flue mounting structure, and relates to the technical field of house building flues. The embedded installation device and a cast-in-place formwork of a building floor slab are fixedly installed, the U-shaped groove is filled with the polystyrene batten, and cement paste is prevented from entering the U-shaped groove along a gap between the formwork and the embedded installation device to pollute and block the U-shaped groove when the floor slab is poured. The upper end of the flue with the rectangular section is inserted into the U-shaped groove, so that the mounting accuracy of the flue is ensured; cushion blocks are installed at the bottom of the lower end of the rectangular-section flue to support the flue, the inner side face of the rectangular-section flue is tightly attached to an L-shaped angle steel vertical plate, a waterproof reverse table is arranged on the outer side face of the rectangular-section flue, the contact portion of a floor slab and the waterproof reverse table is scabbled, combination of the waterproof reverse table and the concrete floor slab is facilitated, and the better waterproof effect is achieved. The rectangular-section flue mounting structure and the mounting construction method thereof are simple, manufacturing and mounting are convenient, construction efficiency is improved, smoke leakage and water seepage are prevented, mounting precision is high, and construction cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of smoke ducts in house buildings and relates to a smoke duct installation structure with a rectangular cross section. Background Art

[0002] The flue of a building is a tubular device for discharging exhaust gas and smoke. The residential flue refers to a vertical pipe product used to remove kitchen smoke or bathroom exhaust gas. However, there are currently quality problems such as water leakage at the root of the flue and smoke leakage at the joints of the flue, which cause losses to the residents' property. Smoke leakage seriously affects the residents' home air environment.

[0003] The traditional flue installation method is wire hanging formwork construction. The wire is easy to rust and collapse, the pouring is not dense, there is a great risk of leakage, the construction quality is poor, and the cost is high. Utility Model Content

[0004] In order to make up for the deficiencies of the prior art, the utility model provides a rectangular cross-section flue installation structure. The utility model can facilitate construction and effectively prevent water seepage and smoke leakage by arranging a pre-buried installation device.

[0005] The utility model is realized through the following technical scheme: the utility model provides a rectangular cross-section flue installation structure, including a floor slab and a rectangular cross-section flue, a pre-embedded installation device is fixedly installed at the flue connection on the inner side of the floor slab, the pre-embedded installation device includes an L-shaped angle steel, an embedded main body and a U-shaped groove connected in sequence from top to bottom, the L-shaped angle steel includes a horizontal plate and a vertical plate; the upper end of the rectangular cross-section flue is inserted into the U-shaped groove of the upper floor slab; the lower end of the rectangular cross-section flue is inserted into the L-shaped angle steel of the lower floor slab, a pad is arranged below the connection between the lower end of the rectangular cross-section flue and the L-shaped angle steel, the pad is fixed on the L-shaped angle steel, the inner side surface of the lower end of the rectangular cross-section flue is close to the vertical plate of the L-shaped angle steel, a waterproof reverse platform is arranged on one side of the pad and the rectangular cross-section flue; the waterproof reverse platform fixes the rectangular cross-section flue to the inner side of the L-shaped angle steel; the pre-embedded installation device is close to the floor slab cutout and is symmetrically installed; the pre-embedded installation device is made of stainless steel.

[0006] Preferably, the embedded installation device is fixedly installed with the cast-in-place formwork of the building floor, and the embedded installation device and the cast-in-place formwork are firmly fixed by oblique steel bars.

[0007] Preferably, a waterproof countertop is provided on the outer side surface of the lower end of the flue, and the contact portion between the floor slab and the waterproof countertop is roughened.

[0008] Preferably, the waterproof countertop adopts one of micro-expanding fine stone concrete, high-strength grouting material or waterproof mortar.

[0009] Preferably, the pad is a wooden pad or an iron pad.

[0010] Preferably, the U-shaped groove is filled with polystyrene strips before being plugged into the rectangular cross-section flue.

[0011] The beneficial effects of the utility model are:

[0012] The rectangular cross-section flue installation structure and the installation construction method of the utility model are simple, easy to manufacture and install, improve construction efficiency, prevent smoke leakage and water seepage, have high installation precision, and reduce construction costs. The embedded installation device is fixedly installed with the cast-in-place formwork of the building floor, and the U-shaped groove is filled with polystyrene strips to prevent cement slurry from entering the U-shaped groove along the gap between the formwork and the embedded installation device when pouring the floor to contaminate and block the U-shaped groove; the upper end of the rectangular cross-section flue is inserted into the U-shaped groove to ensure the accuracy of the flue installation; a pad is installed at the bottom of the lower end of the rectangular cross-section flue to support the flue, the inner side of the rectangular cross-section flue is close to the L-shaped angle steel vertical plate, and a waterproof countertop is set on the outer side of the rectangular cross-section flue, and the contact part between the floor and the waterproof countertop is roughened, which is conducive to the combination of the waterproof countertop and the concrete floor, achieving a better waterproof effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described below in conjunction with the accompanying drawings;

[0014] Figure 1 It is a cross-sectional view of the rectangular cross-section flue installation structure of the utility model;

[0015] Figure 2 A plan view of the openings of the flue of the utility model, which are not against the wall on all four sides;

[0016] Figure 3 for Figure 2 AA section view in (the rectangular flue is not installed against the wall on all four sides);

[0017] Figure 4 A plan view of a wall opening on one side reserved for the flue of the utility model;

[0018] Figure 5 for Figure 4 AA section view in (one side of the rectangular flue is installed against the wall);

[0019] Figure 6 Plan view of the two wall openings reserved for the flue of the utility model;

[0020] Figure 7 for Figure 6 AA section view in (the rectangular flue is installed against the wall on both sides);

[0021] Figure 8 It is a cross-sectional view of the embedded installation device of the utility model;

[0022] In the figure, 1 is floor slab, 2 is rectangular cross-section flue, 3 is embedded installation device, 4 is cushion block, 5 is waterproof counter platform, 6 is wall, 301 is L-shaped angle steel, 302 is embedded main body, 303 is U-shaped groove, 3011 is horizontal plate, and 3012 is vertical plate. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0024] The accompanying drawing is a specific embodiment of a rectangular cross-section flue installation structure of the utility model, including a floor 1 and a rectangular cross-section flue, and a pre-embedded installation device is fixedly installed at the flue connection on the inner side of the floor, and the pre-embedded installation device includes an L-shaped angle steel 301, an embedded main body 302 and a U-shaped groove 303 connected in sequence from top to bottom; the L-shaped angle steel 301 includes a horizontal plate 3011 and a vertical plate 3012. The upper end of the rectangular cross-section flue 2 is inserted into the U-shaped groove 303 of the upper floor; the lower end of the rectangular cross-section flue 2 is inserted into the L-shaped angle steel of the lower floor slab 1, and a pad 4 is arranged below the connection between the lower end of the rectangular cross-section flue and the L-shaped angle steel, and the pad is fixed on the L-shaped angle steel. The inner side surface of the lower end of the rectangular cross-section flue is close to the vertical plate 3012 of the L-shaped angle steel 301, and a waterproof countertop 5 is arranged on one side of the pad and the rectangular cross-section flue; the waterproof countertop fixes the rectangular cross-section flue 1 to the inner side of the L-shaped angle steel; the embedded installation device is close to the floor slab cutout and symmetrically installed; the embedded installation device 3 is made of stainless steel.

[0025] A waterproof countertop 5 is arranged on the outer side of the lower end of the flue, and the contact part between the floor and the waterproof countertop 5 is roughened, which is conducive to the combination of the waterproof countertop 5 and the concrete floor, and has a better waterproof effect. The waterproof countertop 5 adopts one of micro-expansion fine stone concrete, high-strength grouting material or waterproof mortar.

[0026] A cushion block 4 is installed at the bottom of the lower end of the rectangular cross-section flue 1 to support the flue; the cushion block 4 is a cushion of wood or iron.

[0027] The embedded installation device 3 is fixedly installed with the cast-in-place formwork of the building floor, and the embedded installation device 3 is firmly fixed with the cast-in-place formwork by oblique steel bars. The embedded installation device 3 is made of stainless steel to ensure the durability of the embedded installation device 3. The embedded main body 301, L-shaped angle steel 302, and U-shaped groove 303 are welded into one body, and the weld is polished and smooth. The horizontal plate 3011 of the L-shaped angle steel 301 is made of stainless steel plate with high flatness to ensure the verticality of the rectangular cross-section flue installation. At the same time, the horizontal plate 3011 can also serve as the floor thickness control point when pouring the floor concrete.

[0028] Before the U-shaped groove 303 is connected to the rectangular cross-section flue, polystyrene strips are stuffed inside it to prevent cement slurry from entering the U-shaped groove 303 along the gap between the template and the embedded installation device during pouring of the floor slab and contaminating and blocking the U-shaped groove; when the rectangular cross-section flue needs to be connected and installed, the polystyrene strips in the U-shaped groove are taken out, and one end of the rectangular cross-section flue is inserted into the U-shaped groove 303 to ensure the accuracy of the flue installation.

[0029] Specific embodiment 1, the method for installing the rectangular cross-section flue is as follows: when the four sides of the flue opening reserved for house construction are not attached to the wall, as shown in the attached Figure 1 , Figure 2 , Figure 3 As shown, first, the embedded installation device 3 is fixedly installed on the cast-in-place template of the building floor 1, and then the concrete of the floor 1 is poured. The horizontal plate 3011 can also serve as the floor thickness control point when pouring the floor concrete, so that the embedded installation device 3 and the floor 1 form a whole; secondly, the U-shaped groove 303 is filled with polystyrene strips to prevent cement slurry from entering the U-shaped groove 303 along the gap between the template and the embedded installation device 3 when pouring the floor 1, contaminating and blocking the U-shaped groove 303; before installing the rectangular cross-section flue, the polystyrene board in the U-shaped groove 303 is taken out after the template of the floor 1 is removed, and the U-shaped groove 303 is filled with polystyrene strips. The upper part of the rectangular cross-section flue 2 is cleaned; the upper end of the rectangular cross-section flue 2 is inserted into the U-shaped groove 303 to ensure the accuracy of the installation of the rectangular cross-section flue 2; a pad 4 is installed at the bottom of the lower end of the rectangular cross-section flue 2 to support the flue; the inner side surface of the lower end of the rectangular cross-section flue 2 is installed close to the L-shaped angle steel 301 vertical plate 3012; then a wooden formwork is supported on the outer side surface of the lower end of the rectangular cross-section flue 2 to cast a waterproof countertop 5, and the waterproof countertop 5 can be made of slightly expanded fine stone concrete; after casting the waterproof countertop, the contact part between the floor slab 1 and the waterproof countertop 5 is roughened, which is conducive to the combination of the waterproof countertop 5 and the concrete floor slab 1, and has a better waterproof effect.

[0030] Specific embodiment 2 is different from embodiment 1 in that the rectangular cross-section flue reserved in the building structure of this embodiment has one side against the wall, as shown in the attached Figure 4 , Figure 5As shown; the construction and installation steps of Example 1 are different in that when one side of the rectangular cross-section flue is against the wall, no pad is set at the bottom of the wall. When the waterproof countertop is poured, the gap at the bottom of the rectangular cross-section flue is filled simultaneously.

[0031] Specific embodiment 3 is different from embodiment 1 in that the rectangular cross-section flue reserved in the building structure of this embodiment has two sides against the wall, as shown in the attached Figure 6 , Figure 7 As shown; the difference from the construction and installation steps of Example 1 is that when the two sides of the rectangular cross-section flue are against the wall, no pads are set at the bottom against the wall. When the waterproof countertop is poured, the gap at the bottom of the rectangular cross-section flue is filled simultaneously.

Claims

1. A rectangular cross-section flue installation structure, comprising a floor plate (1) and a rectangular cross-section flue (2), characterized in that: A pre-buried installation device (3) is fixedly installed at the flue connection on the inner side of the floor slab (1), the pre-buried installation device comprising an L-shaped angle steel (301), a pre-buried main body (302) and a U-shaped groove (303) connected in sequence from top to bottom, the L-shaped angle steel (301) comprising a horizontal plate (3011) and a vertical plate (3012); the upper end of the rectangular cross-section flue (2) is inserted into the U-shaped groove (303) of the upper floor slab; the lower end of the rectangular cross-section flue (2) is inserted into the U-shaped groove (303) of the lower floor slab (1 ), a cushion block (4) is arranged below the connection between the lower end of the rectangular cross-section flue and the L-shaped angle steel, the cushion block is fixed on the L-shaped angle steel, the inner side surface of the lower end of the rectangular cross-section flue is closely attached to the vertical plate (3012) of the L-shaped angle steel (301), and a waterproof countertop (5) is arranged on one side of the cushion block and the rectangular cross-section flue; the waterproof countertop fixes the rectangular cross-section flue to the inner side of the L-shaped angle steel; the embedded installation device is closely attached to the floor cutout and symmetrically installed; the embedded installation device (3) is made of stainless steel.

2. The rectangular cross-section flue installation structure according to claim 1, characterized in that: The pre-embedded installation device (3) is fixedly installed on the cast-in-place formwork of the building floor (1), and the pre-embedded installation device (3) and the cast-in-place formwork are firmly fixed by oblique steel bars.

3. The rectangular cross-section flue installation structure according to claim 1, characterized in that: A waterproof countertop (5) is arranged on the outer side surface of the lower end of the flue, and the contact portion between the floor slab and the waterproof countertop (5) is roughened.

4. The rectangular cross-section flue installation structure according to claim 1, characterized in that: The waterproof countertop (5) is made of micro-expansion fine stone concrete, high-strength grouting material or waterproof mortar.

5. The rectangular cross-section flue installation structure according to claim 1, characterized in that: The cushion block (4) is a cushion of wood or iron.

6. The rectangular cross-section flue installation structure according to claim 1, characterized in that: Before the U-shaped groove (303) is connected to the rectangular cross-section flue, a polystyrene strip is stuffed inside the groove.

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