Concrete one-step forming structure of firewood flue of outer wall

Abstract

The utility model provides an outer wall firewood flue concrete one-time forming structure which comprises a chimney structural body, a reserved chimney section, a floor slab, an aluminum formwork, a back ridge and flue outer wall structural steel bars. A chimney standard section on the bottommost layer of the chimney structural body is connected with the top end of a reserved chimney section on the lower layer, the reserved chimney section is higher than the upper surface of a floor slab, aluminum formworks are arranged on the periphery of the chimney structural body, the aluminum formwork on one side is arranged on the indoor side of flue outer wall structural steel bars, and the aluminum formwork on the other side is arranged on the outer wall of the chimney structural body. Back ridges are buckled on the outer sides of the aluminum formworks, the opposite aluminum formworks are fixed through opposite-pull screws, and a concrete pouring space is defined by the multiple aluminum formworks. According to the utility model, the construction procedures can be effectively reduced, the construction efficiency is improved, the operation safety is ensured, and the popularization value is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of an external wall firewood smoke duct, in particular to a concrete one-time forming structure of an external wall firewood smoke duct. Background Art

[0002] In construction projects, chimneys installed on the exterior walls of buildings are generally prefabricated double-layer stainless steel chimneys. Prefabricated double-layer stainless steel chimneys are divided into inner liner, insulation layer and outer liner in terms of structure. Both the inner and outer liner are made of stainless steel and are installed in multiple sections. At present, the traditional installation process for installing this type of diesel generator stainless steel chimney includes the following steps: determine the position → install the fixed bracket → install the guide bracket → add sealant to the chimney flange port before installation → chimney docking → flange connection, bolts → correct verticality → fill the insulation cotton at the connection between the two sections of the smoke pipe → surround the ring cover and tighten the ring cover bolts → masonry and plastering.

[0003] The above-mentioned prior art must use steel brackets to fix the chimney during the installation process, and then carry out bricklaying and plastering to seal it, and finally form an external wall firewood smoke duct structure. However, the external wall firewood smoke duct structure in the prior art means that more reinforcement operation space is required. Therefore, during the construction process, a shaft hole for installing a stainless steel chimney needs to be reserved in the floor structure, which will cause a greater installation risk. In addition, during the construction process, masonry can only be carried out after the chimney is installed, which affects the construction period.

[0004] Therefore, it is necessary to optimize the molding structure and installation layout process of the existing external wall firewood smoke duct to solve some problems existing in the prior art. Utility Model Content

[0005] The utility model aims to provide a one-time concrete forming structure for an exterior wall firewood smoke duct.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an external wall firewood flue concrete one-time forming structure, including a chimney structure, a reserved chimney section, a floor, an aluminum formwork, a back rib, and a flue external wall structural steel bar, the chimney structure is formed by a plurality of chimney standard sections connected in sequence up and down, the chimney standard section of the bottom layer of the chimney structure is connected to the top of the reserved chimney section of the lower layer, the reserved chimney section is higher than the upper surface of the floor, aluminum formworks are respectively arranged around the chimney structure, one side of the aluminum formworks is arranged on the indoor side of the flue external wall structural steel bar, a back rib is buckled on the outer side of the aluminum formworks, the relative aluminum formworks are fixed by tension screws, and a plurality of aluminum formworks are enclosed to form a concrete pouring space.

[0007] The chimney standard section comprises an outer tube and an inner tube, wherein the outer tube and the inner tube are filled with glass fiber insulation cotton, and the upper and lower inner tubes are connected by a connecting ring, and the two end ports of the connecting ring are fixed by bolts.

[0008] A ring cover is arranged around the connection of the upper and lower outer cylinders, and the two end ports of the ring cover are fixed by bolts.

[0009] The outer portion of the outer cylinder is provided with a convex ring, and the convex ring limits the position of the ring cover.

[0010] The reserved chimney section is 20 cm higher than the upper surface of the floor slab.

[0011] Compared with the existing technology, the above technical solution has the following beneficial effects:

[0012] 1. There is no need to fix the chimney with a steel bracket, which eliminates the generation of reserved holes for flues from the root, reduces the source of danger on the construction site, reduces construction safety accidents caused by reserved holes, and ensures construction safety;

[0013] 2. The construction is convenient and fast, the operation is simple and convenient, and the construction period can be shortened;

[0014] 3. The full concrete forming method eliminates the need for masonry after chimney installation, which can reduce the workload of wet operations and is more energy-saving and environmentally friendly.

[0015] In general, the utility model can effectively reduce the construction process, improve the construction efficiency and ensure the safety of the operation, and has great promotion value. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 It is a partial structural schematic diagram of the utility model;

[0019] Figure 3 It is a partial structural schematic diagram of the standard chimney section 11 in the utility model;

[0020] Figure 4 It is a schematic diagram of the local structure of the connection of adjacent inner cylinders 112 in the utility model;

[0021] Figure 5 It is a schematic diagram of the connection between the skirt 1121 and the connecting ring 1122 in the present invention.

[0022] Explanation of the reference numerals: 1. Chimney structure; 11. Standard chimney section; 111. Outer tube; 1111. Ring cover; 1112. Convex ring; 112. Inner tube; 1121. Skirt; 1122. Connecting ring; 1123. Bolt; 1124. U-shaped groove; 113. Glass fiber insulation wool; 2. Reserved chimney section; 3. Floor slab; 4. Aluminum formwork; 41. Tension screw; 42. Concrete pouring space; 5. Back rib; 6. Structural steel bars for flue exterior wall. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail in combination with the embodiments below. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model.

[0024] In view of the problems existing in the prior art, the utility model provides an external wall firewood smoke duct concrete one-time forming structure and a construction method thereof. The utility model is described in detail below in conjunction with the accompanying drawings.

[0025] See also Figure 1-Figure 5 As shown, the technical solution adopted in this specific implementation method is: an external wall firewood smoke duct concrete one-time forming structure, including a chimney structure 1, a reserved chimney section 2, a floor slab 3, an aluminum formwork 4, a back rib 5, and a flue outer wall structural steel bar 6. The chimney structure 1 is formed by a plurality of chimney standard sections 11 connected in sequence up and down.

[0026] Specifically, the chimney standard section 11 includes an outer tube 111 and an inner tube 112 , and glass fiber thermal insulation wool 113 is filled between the outer tube 111 and the inner tube 112 .

[0027] The upper and lower ends of the inner cylinder 112 are respectively provided with skirts 1121, and the connection between adjacent inner cylinders 112 is externally enclosed by a connecting ring 1122. Specifically, the connecting ring 1122 has a U-shaped groove 1124 on the inner side surface close to the inner cylinder 112, and the U-shaped groove 1124 is used to accommodate the skirts 1121 of the upper and lower sections of the inner cylinder 112. The skirts of the upper and lower sections of the inner cylinder 112 are fixedly mounted in the U-shaped groove 1124. Finally, the two end ports of the connecting ring 1122 are fixed by bolts 1123.

[0028] Specifically, the connection between the adjacent outer tubes 111 is surrounded by a ring cover 1111, and the two end ports of the ring cover 1111 are fixed by bolts 1123. The outer part of the outer tube 111 near the ring cover 1111 is provided with a convex ring 1112, and the ring cover 1111 is located between the convex rings 1112 of the upper and lower outer tubes 112, and the convex rings 1112 of the upper and lower outer tubes 112 can limit the ring cover 1111.

[0029] The bottom chimney standard section 11 of the chimney structure 1 is connected to the top of the reserved chimney section 2 of the lower layer, and the connection method between the bottom chimney standard section 11 and the inner tube 112 and outer tube 111 of the reserved chimney section 2 is as described above.

[0030] It should be specifically noted that the reserved chimney section 2 is higher than the upper surface of the floor 3 by a certain distance, so as to facilitate the connection between the chimney standard section 11 at the bottom layer of the chimney structure 1 and the reserved chimney section 2. Specifically, the reserved chimney section 2 is higher than the upper surface of the floor 3 by 15-30 cm, and preferably, the reserved chimney section 2 is higher than the upper surface of the floor 3 by 20 cm.

[0031] The floor slab 3 is arranged on the outside of the building exterior wall structure.

[0032] Aluminum formworks 4 are respectively arranged around the chimney structure 1, wherein the aluminum formworks 4 on one side are arranged on the inner side of the flue outer wall structural steel bars 6, the outer side surface of the aluminum formworks 4 is fitted and connected with a back rib 5, the opposite aluminum formworks 4 or the opposite back ribs 5 are fixed by tension screws 41, the aluminum formworks 4 on all sides are connected to form a concrete pouring space 42, the flue outer wall structural steel bars 6 are arranged in the concrete pouring space 42, and cement is poured in the concrete pouring space 42 to form a one-time connection between the chimney structure 1 and the flue outer wall structure.

[0033] The construction method of the one-time concrete forming structure of the external wall firewood smoke duct includes the following steps:

[0034] S1. Reserved chimney section: A reserved chimney section 15-30cm higher than the floor surface is reserved on the floor of the working layer;

[0035] S2. Connecting standard chimney sections: according to the chimney installation plan, transport the standard chimney sections to the working layer, and sequentially connect multiple standard chimney sections to form a chimney structure, wherein the first standard chimney section is connected to the reserved chimney section;

[0036] In S2, the standard chimney section at the top of the current working layer should be 15-30cm higher than the floor surface of the next working layer;

[0037] In S2, attention should be paid to the consistency of pipe diameter when connecting the chimney standard section, and sealant should be used to seal the pipe joints to avoid smoke leakage;

[0038] S3. Install insulation and ring cover: After the upper and lower chimney standard sections are connected, fill the connection with insulation and surround the ring cover and tighten the bolts;

[0039] S4. External formwork installation: Aluminum formwork is installed around the chimney structure, one side of which is installed on the inner side of the steel bars of the flue outer wall structure, and the aluminum formworks on all sides enclose a concrete pouring space;

[0040] Before installing the S4 outer formwork, it is necessary to first check whether the vertical reinforcement measures of the chimney structure are reliable. The formwork can be sealed only after acceptance. At the same time, the inner surface of the aluminum formwork must be cleaned before sealing the formwork, and the release agent must be evenly applied;

[0041] S5. Insert the tension screws for reinforcement: After the outer formwork is installed, buckle the back ribs and insert the tension screws to the opposite aluminum formwork for tension and locking reinforcement;

[0042] S6. Concrete pouring: Concrete can be poured in the concrete pouring space only after the external formwork reinforcement is completed. At this point, the concrete of the external wall firewood flue and the flue external wall structure is formed at one time, and the construction is completed.

[0043] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0044] The above description is only used to illustrate the technical solution of the utility model rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the utility model by ordinary technicians in this field should be included in the scope of the claims of the utility model as long as they do not depart from the spirit and scope of the technical solution of the utility model.

Claims

1. A one-step concrete forming structure of an exterior wall firewood smoke duct, characterized in that: It includes a chimney structure, a reserved chimney section, a floor slab, an aluminum formwork, a back rib, and a flue outer wall structural steel bar. The chimney structure is formed by connecting a plurality of standard chimney sections in sequence from top to bottom. The chimney standard section at the bottom layer of the chimney structure is connected to the top of the reserved chimney section at the lower layer. The reserved chimney section is higher than the upper surface of the floor slab. Aluminum formworks are respectively arranged around the chimney structure, one side of the aluminum formworks is arranged on the indoor side of the flue outer wall structural steel bar, a back rib is buckled on the outer side of the aluminum formworks, and the relative aluminum formworks are fixed by tension screws. A plurality of aluminum formworks are enclosed to form a concrete pouring space.

2. The one-step concrete forming structure of the exterior wall firewood smoke duct according to claim 1 is characterized in that: The chimney standard section comprises an outer tube and an inner tube, wherein the outer tube and the inner tube are filled with glass fiber insulation cotton, and the upper and lower inner tubes are connected by a connecting ring, and the two end ports of the connecting ring are fixed by bolts.

3. The one-step concrete forming structure of the exterior wall firewood smoke duct according to claim 2 is characterized in that: A ring cover is arranged around the connection of the upper and lower outer cylinders, and the two end ports of the ring cover are fixed by bolts.

4. The one-step concrete forming structure of the exterior wall firewood smoke duct according to claim 3 is characterized in that: The outer portion of the outer cylinder is provided with a convex ring, and the convex ring limits the position of the ring cover.

5. The one-step concrete forming structure of the exterior wall firewood smoke duct according to claim 1 is characterized in that: The reserved chimney section is 20 cm higher than the upper surface of the floor slab.

6. The one-step concrete forming structure of the exterior wall firewood smoke duct according to claim 1 is characterized in that: The inner surface of the aluminum template is evenly coated with a release agent.

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