L-shaped cement prefabricated flue connected with structural wall

Abstract

The utility model discloses an L-shaped cement prefabricated flue connected with a structural wall. A plastering pressing groove 3 is formed in the outer portion of the L-shaped prefabricated flue 1. The galvanized iron sheet 4 is clamped into the plastering pressing groove 3 and tightly attached to the structural wall body 2. The pre-buried galvanized iron sheet 4 is in anchoring connection with the structural wall body 2 through the gun nails 5; the galvanized iron sheet 4 is welded with the galvanized welded wire mesh 6 in the L-shaped prefabricated flue 1; a horizontal joint of each layer of L-shaped prefabricated flue 1 is reserved on the upper floor of a floor plate 10 and is tightly blocked by polymer mortar, and a gap between the horizontal joint and the floor plate 10 is made of C20 fine aggregate concrete 7; and joints between the two sides of the L-shaped prefabricated flue 1 and the structure of the structural wall 2 are blocked by using anti-crack mortar 9. According to the construction method, it is ensured that the L-shaped prefabricated flue 1 and the structural wall 2 are tightly connected, the construction method has the advantages of being firm in installation, good in integrity, reliable in quality and the like, the problem that the integrity of the L-shaped prefabricated flue 1 is poor is well solved, and the installation quality of the L-shaped prefabricated flue 1 is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to building engineering technical field especially a kind of L-shaped cement prefabricated flue connected with structural wall. BACKGROUND

[0002] Nowadays, L-shaped prefabricated flue can reduce nearly half of the cost, and the process is simple, the manufacturing time is greatly shortened, and the construction lapping is more convenient in vertical position.

[0003] But since the L-shaped prefabricated flue needs to be reliably connected with the wall surface, to avoid the flue from shaking due to insecure installation, it needs to ensure that it is in close contact with the structural wall, and there is currently no relevant specification or standard for the specific installation method, resulting in no basis and quality standard during on-site construction, which is prone to quality risks.

[0004] In order to solve the problems existing in the prior art, the utility model provides an L-shaped cement prefabricated flue connected with a structural wall. UTILITY MODEL CONTENTS

[0005] In order to solve the problems existing in the prior art, the utility model provides an L-shaped cement prefabricated flue connected with a structural wall.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] An L-shaped cement prefabricated flue connected with a structural wall, the L-shaped prefabricated flue 1 is provided with a plastering pressure groove 3 outside; a galvanized iron sheet 4 is clamped into the plastering pressure groove 3 and tightly adheres to the structural wall 2; the embedded galvanized iron sheet 4 is anchored and connected with the structural wall 2 by a cannon bolt 5; the galvanized iron sheet 4 is welded with a galvanized electric welding mesh 6 inside the L-shaped prefabricated flue 1; the horizontal joint of each layer of L-shaped prefabricated flue 1 is left on the floor slab 10, and a polymer mortar is used for sealing, and a C20 fine stone concrete 7 is used for the gap between the floor slab 10; the joint between the two sides of the L-shaped prefabricated flue 1 and the structure of the structural wall 2 is sealed with anti-cracking mortar 9.

[0008] The utility model also has the following additional technical features:

[0009] As a further specific optimization of the technical scheme of the utility model: the plastering pressure groove is 310mm thick, 100mm wide, and the same height as the structural wall 2.

[0010] As a further specific optimization of the technical scheme of the utility model: a triangular support pad is welded with a steel plate and a reinforcing bar at the bottom of the L-shaped prefabricated flue 1 and placed on the L-shaped prefabricated flue 1.

[0011] As a further specific optimization of the technical scheme of the utility model: the corner parts of the two sides of the L-shaped prefabricated flue 1 are supported by a supporting device 8.

[0012] As a further specific optimization of the technical solution of the present invention: after the anti-cracking mortar 9 is applied, it is flush with the structural wall 2, and the L-shaped prefabricated flue 1 is perpendicular to the structural wall 2.

[0013] Compared with the prior art, the utility model has the following advantages:

[0014] Advantage 1: The present invention adopts a reserved plastering groove 3 on the structural wall 2 with a width of 100 mm and a depth of 10 mm. During installation, the pre-buried galvanized iron sheet 4 of the L-shaped prefabricated flue 1 is placed in the plastering groove 3 to prevent the L-shaped prefabricated flue 1 from moving. The pre-buried galvanized iron sheet 4 of the L-shaped prefabricated flue 1 is fixed to the structural wall 2 with nails 5, and the internal angle joints are fully hung with fiberglass mesh cloth. The construction method of 10 mm anti-cracking mortar 9 decoration can ensure firm installation, the anti-cracking mortar 9 plastering surface is flush with the structural wall 2, the L-shaped prefabricated flue 1 is perpendicular to the structural wall 2, and the connection with the structural wall 2 is good in integrity, meeting the quality requirements.

[0015] Advantage 2: This construction method ensures that the L-shaped prefabricated flue 1 is tightly connected to the structural wall 2, and has the advantages of firm installation, good integrity, and reliable quality. It effectively solves the problem of poor integrity of the L-shaped prefabricated flue 1 and improves the installation quality of the L-shaped prefabricated flue 1. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figures 1-3 It is a structural diagram of the utility model;

[0017] Figure 4 This is a detailed diagram of the installation nodes of the utility model;

[0018] Figure 5 It is a three-dimensional detailed drawing of the installation of the utility model;

[0019] Figure 6 This is a transport front view of the utility model;

[0020] Figure 7 This is a schematic diagram of loading and transportation of the present utility model.

[0021] Explanation of the reference numerals: L-shaped prefabricated flue 1, structural wall 2, plaster groove 3, galvanized iron sheet 4, nails 5, galvanized welded mesh 6, C20 fine stone concrete 7, supporting device 8, anti-cracking mortar 9, floor slab 10, carriage 11, sleepers 12, binding belts 13. DETAILED DESCRIPTION

[0022] Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings.

[0023] The detailed description of the embodiments of the present application provided in the above drawings is not intended to limit the scope of the claimed present application, but merely represents selected embodiments of the present application.

[0024] Embodiment 1

[0025] An L-shaped cement prefabricated flue connected with a wall structure in construction, an external part of the L-shaped prefabricated flue 1 is provided with a plaster pressing groove 3; a galvanized iron sheet 4 is clamped into the plaster pressing groove 3 and closely adheres to the structural wall 2; the embedded galvanized iron sheet 4 is anchored and connected with the structural wall 2 through a cannon bolt 5; the galvanized iron sheet 4 is welded with a galvanized welded wire mesh 6 in the L-shaped prefabricated flue 1; a horizontal joint of each layer of the L-shaped prefabricated flue 1 is left on the upper surface of a floor slab 10 and is tightly blocked by using a polymer mortar, and a gap between the L-shaped prefabricated flue 1 and the floor slab 10 is filled with a C20 fine stone concrete 7; a joint between the two sides of the L-shaped prefabricated flue 1 and the structure of the structural wall 2 is blocked by using a crack-resistant mortar 9.

[0026] Optimization: the plaster pressing groove 3 is 310mm thick and 100mm wide, and is the same height as the structural wall 2.

[0027] Optimization: a triangular support pad is welded with a steel plate and a steel bar at the bottom of the L-shaped prefabricated flue 1 and is placed on the L-shaped prefabricated flue 1.

[0028] Optimization: the corner parts of the two sides of the L-shaped prefabricated flue 1 are supported by using a supporting device 8.

[0029] Optimization: after the crack-resistant mortar 9 is applied, the L-shaped prefabricated flue 1 is flush with the structural wall 2 and perpendicular to the structural wall 2.

[0030] Embodiment 2

[0031] A mounting method of an L-shaped cement prefabricated flue connected with a wall structure in construction, comprising the following steps:

[0032] Step 1: when the structural wall 2 of the L-shaped prefabricated flue 1 needs to be constructed, a plaster pressing groove 3 with a thickness of 10mm, a width of 100mm and a height same as the wall is reserved according to the design size of the L-shaped prefabricated flue 1.

[0033] Step 2: the reserved galvanized iron sheet 4 on the L-shaped prefabricated flue 1 is clamped into the plaster pressing groove 3 and closely adheres to the structural wall 2, then the embedded galvanized iron sheet 4 is anchored and connected with the structural wall 2 by using a cannon bolt 5, the galvanized iron sheet 4 is firmly welded with a galvanized welded wire mesh 6 in the L-shaped prefabricated flue 1, 20mm is embedded in the L-shaped prefabricated flue 1, 80mm is exposed outside, the first joint is 200mm away from the ground, and every 500mm is provided with a joint, if the structural wall 2 is a masonry wall, prefabricated concrete blocks can be built according to the design size of the L-shaped prefabricated flue 1 and the height of the embedded iron sheet, so as to be conveniently and firmly fixed.

[0034] Step 3: Install the L-shaped prefabricated flue 1 layer by layer from bottom to top. When installing the first layer, use 1:2 cement mortar to level the ground, and use a steel plate and steel reinforcement to weld a triangular support pad, which is placed on the L-shaped prefabricated flue 1.

[0035] Step 4: The horizontal joint of each layer of L-shaped prefabricated flue 1 is left on the floor slab 10, and polymer mortar is used to seal tightly. The gap between the floor slab 10 and the L-shaped prefabricated flue 1 is filled with C20 fine aggregate concrete 7. To ensure overall stress requirements, every 3 layers of residential buildings are supported by support devices 8 at both side corners, and every 2 layers of public buildings are supported by support devices 8 at both side corners.

[0036] Step 5: After installation is complete, use anti-cracking mortar 9 to seal the joint between the L-shaped prefabricated flue 1 and the structure wall 2 structure. Each side is equipped with 100mm wide fiberglass mesh. After applying the anti-cracking mortar 9, it is flush with the structure wall 2, and the L-shaped prefabricated flue 1 is perpendicular to the structure wall 2.

[0037] Example 3

[0038] Transportation method of L-shaped cement prefabricated flue:

[0039] Step 1: During transportation, the L-shaped prefabricated component is placed vertically in the carriage 11, and the bottom is supported by square wood. Every 6 pieces of L-shaped prefabricated flue 1 are stacked together and packed into bundles with packing tape.

[0040] Step 2: Each bundle is vertically separated by a 20mm thick spacer 12, which should be parallel to the carriage 11 panel. Each column is separated by an 80mm thick spacer 12, and the middle column is supported by a 100mm high spacer 12, while the two side columns are supported by a 50mm high spacer 12. This ensures that the middle column and the two side columns are offset by 50mm, ensuring that the L-shaped prefabricated flue 1 and the galvanized iron sheet 4 are not damaged by collision during transportation. The truck's binding strap 13 is tightly bound to the truck's panel.

[0041] Step 3: Structure wall 2 plastering pressure groove 3: When using aluminum formwork for structure wall 2, 10*100mm plastering pressure groove 3 profiles can be used to reserve grooves. When using wooden formwork, 100mm wide wooden strips can be used to reserve grooves. When plastering the rear wall, 100mm wide wooden strips are used to reserve grooves.

[0042] Step 4: Quality Control of Cast-in-Place Structural Wall 2: The formwork for Structural Wall 2 must be installed in strict accordance with regulatory requirements. After installation, use infrared to inspect the flatness and verticality of the formwork. Before installing the L-shaped prefabricated flue 1, recheck the flatness and verticality of Structural Wall 2. If the flatness and verticality of the wall surface exceed the allowable deviation, the wall surface must be polished and repaired. Only after the allowable deviation is met can the L-shaped prefabricated flue 1 be installed to ensure installation quality. Post-masonry quality control: Masonry and plastering must be performed in strict accordance with regulatory requirements to ensure that the overall verticality and flatness of Structural Wall 2 meet the installation requirements for the L-shaped prefabricated flue 1.

[0043] Step 5: When entering the site for installation, the cement performance of the L-shaped prefabricated flue 1, the performance of the hot-dip galvanized welded mesh 6, the performance of the galvanized iron sheet 4, and the test report of the fire resistance performance of the L-shaped prefabricated flue 1 should be checked. The cement performance of the L-shaped prefabricated flue 1 should comply with the provisions of GB175, the performance of the hot-dip galvanized welded mesh 6 should comply with the provisions of QBT2897, and the fire resistance performance should comply with the requirements of the standard for residential kitchen and bathroom exhaust duct products JGT194-2018.

[0044] Step 6: Check that there is no exposed wire mesh, honeycomb, collapse or hollowing on the inner and outer surfaces of the L-shaped prefabricated flue 1.

[0045] Step 7: After the L-shaped prefabricated flue 1 on the first floor is installed in place, the elevation and verticality of the L-shaped prefabricated flue 1 should be checked.

Claims

1. An L-shaped cement prefabricated flue connected to a structural wall, characterized by: A plastering groove (3) is provided on the outside of the L-shaped prefabricated flue (1); a galvanized iron sheet (4) is inserted into the plastering groove (3) and is tightly attached to the structural wall (2); the pre-buried galvanized iron sheet (4) is anchored to the structural wall (2) by means of nails (5); the galvanized iron sheet (4) is welded to the galvanized welded mesh (6) in the L-shaped prefabricated flue (1); the horizontal joints of each layer of the L-shaped prefabricated flue (1) are left on the floor slab (10) and are tightly sealed with polymer mortar, and the gap between the flue and the floor slab (10) is filled with C20 fine stone concrete (7); the joints between the two sides of the L-shaped prefabricated flue (1) and the structural wall (2) are sealed with anti-cracking mortar (9).

2. The L-shaped cement prefabricated flue connected to a structural wall according to claim 1, characterized in that: The plastering groove (3) is 10 mm thick and 100 mm wide, and is as high as the structural wall (2).

3. The L-shaped cement prefabricated flue connected to a structural wall according to claim 1, characterized in that: A triangular support pad is welded on the bottom of the L-shaped prefabricated flue (1) using steel plates and steel bars, and is placed on the L-shaped prefabricated flue (1).

4. The L-shaped cement prefabricated flue connected to a structural wall according to claim 1, characterized in that: The corners on both sides of the L-shaped prefabricated flue (1) are supported by supporting devices (8).

5. The L-shaped cement prefabricated flue connected to a structural wall according to claim 1, characterized in that: After the anti-cracking mortar (9) is applied, it is flush with the structural wall (2), and the L-shaped prefabricated flue (1) is perpendicular to the structural wall (2).

Images