Flue installation structure without hanging mold construction

Abstract

The utility model discloses a flue mounting structure of exempting from to hang the construction, it includes: lower concrete eave, upper concrete eave, main flue, cement leveling layer, vice flue, vertical fixed angle code and gypsum plugging layer, lower concrete eave is in the lower layer position of main body structure, upper concrete eave is in the upper layer position of main body structure, the lower end of main flue communicates with the upper end of lower concrete eave, cement leveling layer construction is between lower concrete eave and the lower end of main flue, the upper end of vice flue communicates with the lower end of upper concrete eave, the upper end of main flue communicates with the lower end of vice flue, vertical fixed angle code connects main flue and / or vice flue with wall body, gypsum plugging layer construction is between the top end of vice flue and upper concrete eave, the utility model discloses a flue mounting structure of exempting from to hang the construction can simplify construction procedure, shorten construction period, reduce construction cost. And can avoid the complexity and leakage risk of hanging the module and block, improve installation quality.

Description

Technical Field

[0001] This utility model belongs to the field of flue construction technology, and in particular relates to a flue installation structure that does not require formwork. Background Technology

[0002] In modern residential construction, flue installation has become an indispensable part. Firstly, strict adherence to building fire codes ensures residential safety; secondly, optimized ventilation and exhaust efficiency guarantees indoor air quality; simultaneously, carefully selected materials and a focus on durability extend service life. Ease of construction is highly valued to shorten construction time and reduce costs. Environmental protection and energy conservation requirements are consistently implemented, promoting green living. Furthermore, optimized space utilization enhances living comfort, while safety protection designs create a safe and secure living environment.

[0003] Currently, traditional flue installations mostly use round steel crossbeams fixed inside structural openings. However, this method is cumbersome. Installation must proceed from bottom to top, with workers inserting the flue's upper opening into the opening of the floor above, then lowering it onto the reinforcing steel of the crossbeam inside the flue's pre-reserved opening on the current floor. Furthermore, the overall flatness and gaps of the flue after installation are difficult to control effectively. Finally, after the entire building's flue installation is complete, the flue openings need to be sealed layer by layer using formwork. If, after construction, the flue sinks due to excessive bending of the crossbeam steel, causing cracks in the openings at the top of the flue and the top of the structure, the sealing of those openings must be repaired again. Therefore, traditional flue installation is slow, time-consuming, labor-intensive, and has many drawbacks. Utility Model Content

[0004] The purpose of this invention is to provide a flue installation structure that eliminates the need for formwork installation.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A flue installation structure that does not require formwork construction, comprising: a lower concrete eave, an upper concrete eave, a main flue, a cement leveling layer, a secondary flue, vertical fixing brackets, and a gypsum sealing layer; the lower concrete eave is a rectangular structure and is located on the lower layer of the main structure; the upper concrete eave is a rectangular structure and is located on the upper layer of the main structure; the lower end of the main flue is connected to the upper end of the lower concrete eave; the cement leveling layer is constructed between the lower concrete eave and the lower end of the main flue; the upper end of the secondary flue is connected to the lower end of the upper concrete eave; the upper end of the main flue is connected to the lower end of the secondary flue; the vertical fixing brackets connect the main flue and / or the secondary flue to the wall; the gypsum sealing layer is constructed between the top of the secondary flue and the upper concrete eave.

[0006] The flue installation structure for formwork-free construction described above further includes a structural adhesive layer, which is disposed at the position where the upper end of the main flue connects to the lower end of the auxiliary flue.

[0007] The flue installation structure for formwork-free construction described above further includes, in part, a wall comprising at least a first side wall and a second side wall that are perpendicularly connected to each other; the vertical cross-sections of the main flue and the auxiliary flue are both rectangular structures, and the main flue and the auxiliary flue are installed at the inside corner formed by the first side wall and the second side wall; and the vertical fixing bracket is provided between the wall and the flue.

[0008] The flue installation structure described above for construction without formwork further includes an L-shaped vertical fixing bracket, which is connected to the wall via expansion bolts.

[0009] The flue installation structure described above for construction without formwork further includes a vertical fixing bracket fixed at the connection point between the main flue and the auxiliary flue.

[0010] The flue installation structure of this utility model, as described above, which requires no formwork installation, further includes a secondary flue with a length of 1 / 10 to 1 / 2 that of the main flue.

[0011] The present invention provides a flue installation structure for construction without formwork, as described above. Further, the main flue and / or the auxiliary flue are provided with inspection ports, and a sealing cover is provided at the inspection port position.

[0012] The present invention provides a flue installation structure for construction without formwork, as described above. Further, the main flue includes a flue body and a connector, the connector being disposed at the top of the flue body, and the lower end of the secondary flue being insertable into the inner cavity of the connector.

[0013] The beneficial effects of this utility model are: 1. Simplified construction procedures, shortened construction period, and reduced construction costs. In this utility model's flue installation structure, both the main flue and auxiliary flue can be prefabricated in the flue factory. The flue installation structure is easier to install, eliminating the need for steel bars or angle steel for crossbeam unloading. Furthermore, the flue installation structure can be installed during the main structure construction phase, and can be installed as soon as the main structure is demolded, greatly shortening the construction period. 2. Avoids the complexity and leakage risk of formwork sealing, improving installation quality. The flue installation structure is directly installed on the concrete eaves of the structural base slab, achieving stable installation and self-unloading of the flue. This avoids the complex process of sealing the opening after traditional flue installation, improving flue installation efficiency and quality. The use of a cement leveling layer in the construction method can eliminate some errors in the main construction and can be flexibly adjusted according to actual needs, better adapting to various construction environments. Attached Figure Description

[0014] The advantages of the present invention, as described above and / or in the following detailed description in conjunction with the accompanying drawings, will become clearer and more readily understood. These drawings are merely illustrative and do not limit the scope of the present invention. Figure 1 A three-dimensional schematic diagram of a flue installation structure that can be constructed without formwork, according to one embodiment; Figure 2 A front view of a flue installation structure for formwork-free construction according to one embodiment; Figure 3 This is a top view schematic diagram of a flue installation structure for formwork-free construction according to one embodiment; Figure 4 for Figure 3 A magnified view of part A in the middle; Figure 5 for Figure 3 A magnified view of part B in the middle; Figure 6 This is a schematic diagram of the main flue and auxiliary flue structure in one embodiment.

[0015] The attached diagram lists the components represented by each number as follows: 1. Lower concrete eaves; 2. Upper concrete eaves; 3. Main flue; 31. Flue body; 32. Connecting part; 4. Secondary flue; 5. Vertical fixing bracket; 6. Expansion bolts; 7. Cement leveling layer; 8. Structural adhesive layer; 9. Plaster sealing layer; 10. First side wall; 11. Second side wall; 12. Main structure. Detailed Implementation

[0016] In the following description, embodiments of the flue installation structure of the present invention, which allows for construction without formwork, will be described with reference to the accompanying drawings.

[0017] The embodiments described herein are specific implementations of this utility model, used to illustrate the concept of this utility model. They are all illustrative and exemplary, and should not be construed as limiting the implementation methods or scope of this utility model. In addition to the embodiments described herein, those skilled in the art can employ other obvious technical solutions based on the content disclosed in the claims and specification of this application. These technical solutions include those that make any obvious substitutions and modifications to the embodiments described herein.

[0018] The accompanying drawings in this specification are schematic diagrams used to illustrate the concept of this utility model, and schematically show the shapes of the various parts and their interrelationships. Please note that, in order to clearly show the structure of the components of the embodiments of this utility model, the drawings are not drawn to the same scale. The same reference numerals are used to indicate the same parts.

[0019] Combination Figures 1 to 6 This invention describes a formwork-free flue installation structure according to an embodiment of the present invention, comprising: The lower concrete eaves 1 are rectangular structures located on the lower layer of the main structure 12. Specifically, the lower concrete eaves are brought out and completed during the main construction phase. The upper concrete eaves 2 are rectangular structures located on the upper part of the main structure 12. Specifically, the upper concrete eaves are brought out in one go during the main construction phase and completed. Main flue 3, the lower end of which is connected to the upper end of the lower concrete eaves 1; Cement leveling layer 7 is constructed between the lower concrete eaves 1 and the lower end of the main flue 3. The function of the cement leveling layer is to level the lower concrete eaves so that the lower end of the main flue can fit snugly against the lower concrete eaves when the main flue is installed, thereby preventing flue gas leakage at the bottom.

[0020] The upper end of the secondary flue 4 is connected to the lower end of the upper concrete eaves 2; the upper end of the main flue 3 is connected to the lower end of the secondary flue 4; in a preferred embodiment, the combined length of the main flue 3 and the secondary flue is the floor height minus the thickness of the roof slab, i.e., the net height of the flue installation.

[0021] Vertical fixing bracket 5 connects the main flue 3 and / or auxiliary flue 4 to the wall; in such cases... Figure 1 and Figure 3In a preferred embodiment of the flue installation structure for formwork-free construction shown, the wall includes at least a first side wall 10 and a second side wall 11 that are perpendicularly connected to each other; the vertical cross-sections of the main flue 3 and the auxiliary flue 4 are both rectangular structures, and the main flue 3 and the auxiliary flue 4 are installed at the inside corner position formed by the first side wall 10 and the second side wall 11; the vertical fixing bracket 5 is set between the wall and the flue.

[0022] In a further preferred embodiment of the flue installation structure that eliminates the need for formwork, the vertical fixing bracket 5 is an L-shaped structure, and is connected to the wall via expansion bolts 6. This method eliminates the need to drill holes in the flue, thus avoiding damage, and also achieves the fixation and connection between the flue and the wall.

[0023] In a further preferred embodiment of the flue installation structure for formwork-free construction, vertical fixing brackets 5 are fixed at the connection point between the main flue 3 and the auxiliary flue 4. Following this method, a single set of vertical fixing brackets 5 can simultaneously fix the positions of the main flue and the auxiliary flue, saving on construction material consumption.

[0024] In a further preferred embodiment of the flue installation structure that does not require formwork, the length of the secondary flue 4 is 1 / 10 to 1 / 2 of the length of the main flue 3.

[0025] In a further preferred embodiment of the flue installation structure for formwork-free construction, the main flue 3 and / or the auxiliary flue 4 are provided with inspection ports, and a sealing cover is provided at the inspection port position; in order to achieve flue gas sealing, preferably, a sealing gasket is provided between the inspection cover and the inspection port.

[0026] The main flue includes a flue body 31 and a connector 32. The connector 32 is located at the top of the flue body 31, and the lower end of the secondary flue 4 can be inserted into the inner cavity of the connector 32. In this preferred embodiment, the connector allows for adaptive adjustment of the overall height of the main and secondary flues by adjusting the depth of the secondary flue insertion into the connector. This avoids installation failures due to the flue height not meeting actual installation requirements (the flue height is greater than the required height, making installation impossible, or the overall flue height is less than the required height, resulting in insufficient overall flue length).

[0027] Plaster sealing layer 9 is constructed between the top of the secondary flue 4 and the upper concrete eaves 2.

[0028] In a preferred embodiment of the flue installation structure for formwork-free construction, a structural adhesive layer 8 is further included. The structural adhesive layer 8 is disposed at the position where the upper end of the main flue 3 connects to the lower end of the auxiliary flue 4. During flue installation, after the structural adhesive is evenly applied to the interface between the main flue and the auxiliary flue, the adhesive-coated surface of the auxiliary flue is vertically placed at the upper end of the main flue.

[0029] The construction steps for the formwork-free flue installation structure of this utility model are as follows: Step 1: The main flue 3 and the auxiliary flue 4 are manufactured in the flue manufacturer's processing workshop and then installed and used directly on the construction site; Step 2: After the main structure is demolded, first clean the lower concrete eaves 1, level it with an appropriate amount of cement slurry, then install the main flue tightly against the corner of the installation opening, and perform preliminary leveling work. Step 3: Apply structural adhesive to the upper port of the main flue 3 and the cross-section of the secondary flue 4, which have been initially installed. Then place the adhesive-coated side of the secondary flue 4 down on the upper port of the main flue 3. This process requires the installer to push it in horizontally. Step 4: Determine and mark the installation position of the vertical fixing bracket 5 based on the interface positions of the main flue 3 and the auxiliary flue 4 installed in Step 3. Step 5: According to the positions marked in Step 4, make two sets of Φ12 holes on both sides of the wall, with a hole depth of 50mm-80mm. Then, use expansion screws 6 to fix the vertical fixing angle brackets 5 on both sides of the interface position of the main flue 3 and the auxiliary flue 4. Step 6: Based on the fixed vertical corner bracket 5 in Step 5, adjust the position of the corner bracket according to the installed flue. One vertical surface should be close to the side wall of the flue, and the other vertical surface should be firmly fixed to the concrete wall with expansion bolts 6 to ensure the safety and stability of the installation of the main flue 3 and the auxiliary flue 4. Step 7: According to Step 6, finish the fixed secondary flue 4. Use plaster to fill the gap between the secondary flue 4 and the upper concrete eaves 2 to complete the finishing. After the installation is completed, check and confirm that the installation effect meets the requirements. Step 8: Repeat steps 1 to 7 for the subsequent flue installation until all flues are installed, and then conduct a smoke leakage test.

[0030] In the specific construction of a flue installation structure that does not require formwork, The lower concrete eaves 1 are made of 30mm reinforced concrete and are cast together with the main structure. The upper concrete eaves 2 are also made of 30mm reinforced concrete and cast together with the main structure. The main flue 3 and auxiliary flue 4 are both made of sulfoaluminate cement with alkali-resistant fiberglass mesh. Both are custom-made products manufactured according to the dimensions in the construction drawings. The vertical fixing bracket 5 is L50×50×3mm and made of stainless steel. The expansion bolt 6 has an M10 thread, a pitch of 1.5mm, an expansion tube diameter of 13mm, and a length of 70mm. The expansion bolt 6 is used to fix the vertical fixing bracket 5 at the joint of the main and auxiliary flues. The cement slurry used for the construction of the cement leveling layer 7 is fly ash cement or slag cement. The slurry is spread evenly on the lower concrete eaves to correct the flatness of the lower concrete eaves and to level and fix the main flue. The structural adhesive layer 8 is constructed by uniformly applying structural adhesive to the contact cross-section of the main and auxiliary flues. The gypsum sealing layer 9 is formed by using gypsum to seal the gap between the upper end of the auxiliary flue and the upper eaves.

[0031] Working principle: During the construction of this utility model flue installation structure, the main flue 3 is supported and fixed to the floor slab by the lower concrete eaves 1 and the cement leveling layer 7. The joint between the main flue and the auxiliary flue is sealed by the structural adhesive layer 8. Then, the main and auxiliary flues are clamped to the corner of the wall by the vertical fixing brackets 5 and the expansion bolts 6. Finally, the gap between the auxiliary flue 4 and the upper concrete eaves 2 is closed by the gypsum sealing layer 9, thus completing the support and installation of the flue. This avoids the need for users to unload the flue and seal the reserved openings, improving the installation efficiency of the flue.

[0032] The technical advantages of this utility model are as follows: 1. Simplified construction procedures, shortened construction cycle, and reduced construction costs. In the flue installation structure of this utility model, both the main flue and the auxiliary flue can be prefabricated in the flue factory. The flue installation structure is easier to install, eliminating the need for steel bars or angle steel for crossbeam unloading. Furthermore, the flue installation structure can be installed during the main structure construction phase, and can be installed as soon as the main structure is demolded, greatly shortening the construction period. 2. Avoiding the complexity and leakage risk of formwork sealing, improving installation quality. The flue installation structure is directly installed on the concrete eaves of the structural base slab, achieving stable installation and self-unloading of the flue. This avoids the complex process of sealing the opening with formwork after traditional flue installation, improving the efficiency and quality of flue installation. The use of a cement leveling layer in the construction method can eliminate some errors in the main construction and can be flexibly adjusted according to actual needs, better adapting to various construction environments.

[0033] The technical features disclosed above are not limited to the combinations of the disclosed features with other features. Those skilled in the art can also make other combinations of the technical features according to the purpose of the utility model in order to achieve the purpose of the utility model.

Claims

1. A flue installation structure that requires no formwork installation, characterized in that, include: The structure comprises a lower concrete eave (1), an upper concrete eave (2), a main flue (3), a cement leveling layer (7), a secondary flue (4), vertical fixing brackets (5), and a gypsum sealing layer (9); the lower concrete eave (1) is a rectangular structure and is located on the lower layer of the main structure (12); the upper concrete eave (2) is a rectangular structure and is located on the upper layer of the main structure (12); the lower end of the main flue (3) is connected to the lower concrete eave (1). The upper end of the main flue (3) is connected to the lower end of the main flue (2); the cement leveling layer (7) is constructed between the lower concrete eaves (1) and the lower end of the main flue (3); the upper end of the secondary flue (4) is connected to the lower end of the upper concrete eaves (2); the upper end of the main flue (3) is connected to the lower end of the secondary flue (4); the vertical fixing bracket (5) connects the main flue (3) and / or the secondary flue (4) to the wall; the gypsum sealing layer (9) is constructed between the top of the secondary flue (4) and the upper concrete eaves (2).

2. The flue installation structure for formwork-free construction according to claim 1, characterized in that, It also includes a structural adhesive layer (8), which is disposed at the position where the upper end of the main flue (3) connects to the lower end of the auxiliary flue (4).

3. The flue installation structure for formwork-free construction according to claim 1, characterized in that, The wall includes at least a first side wall (10) and a second side wall (11) that are perpendicularly connected to each other; the vertical cross-section of the main flue (3) and the auxiliary flue (4) are both rectangular structures, and the main flue (3) and the auxiliary flue (4) are installed at the inside corner formed by the first side wall (10) and the second side wall (11); the vertical fixing bracket (5) is set between the wall and the flue.

4. The flue installation structure for formwork-free construction according to claim 3, characterized in that, The vertical fixing bracket (5) has an L-shaped structure and is connected to the wall by expansion screws (6).

5. The flue installation structure for formwork-free construction according to claim 3, characterized in that, The vertical fixing bracket (5) is fixed at the position where the main flue (3) and the auxiliary flue (4) are connected.

6. The flue installation structure for formwork-free construction according to claim 1, characterized in that, The length of the secondary flue (4) is 1 / 10 to 1 / 2 of the length of the main flue (3).

7. The flue installation structure for formwork-free construction according to claim 1, characterized in that, The main flue (3) and / or the auxiliary flue (4) are provided with inspection ports, and a sealing cover is provided at the inspection port position.

8. The flue installation structure for formwork-free construction according to claim 7, characterized in that, The main flue includes a flue body (31) and a connector (32). The connector (32) is located on the top of the flue body (31), and the lower end of the secondary flue (4) can be inserted into the inner cavity of the connector (32).

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