A kind of assembled building roof exhaust structure and construction method

Abstract

The present invention relates to the field of construction engineering technology, and specifically to an assembled building roof exhaust structure and construction method, comprising a roof structure top plate, the upper end surface of the roof structure top plate is cast with concrete and installed with a reinforced concrete base, the upper end inner cavity of the reinforced concrete base is vertically plugged with an exhaust pipe, and fine stone concrete is cast and installed between the reinforced concrete base and the lower end outer wall of the exhaust pipe. The beneficial effects are as follows: the present invention meets the roof exhaust function by adopting a new construction method, realizes assembly production and assembly, improves work efficiency and reduces engineering costs, and exhausts air through a hemispherical hood composed of stainless steel plate slices, and the inner cavity of the hemisphere is provided with a louver fan, which has the functions of exhaust and rain protection; the precise position installation and convenient plug-in of the decorative panel are achieved by adopting the combination of slots and plug-ins, thereby greatly improving the installation efficiency and improving the sealing of the connection position, avoiding accidents such as water seepage.

Description

Technical Field

[0001] The invention relates to the technical field of building engineering, and in particular to an assembled building roof exhaust structure and a construction method. Background Art

[0002] The exhaust of kitchen and bathroom in construction projects is one of the functions of construction projects. It is necessary to specially design a concrete exhaust tower on the roof structure. However, the selection of traditional exhaust towers is mostly based on standard drawings, which are only 0.6 meters high. However, with the increase in the use of building roof projects, such as solar energy, electromechanical equipment, etc., which need to be installed on the roof, for safety reasons, the height of the parapet has been continuously increased, even reaching several meters. Therefore, it cannot meet the requirement that the roof exhaust tower should exceed the height of the parapet by 0.3 meters. If the traditional exhaust tower is raised, it will not meet the earthquake resistance requirements and increase the project cost, so it needs to be replaced or improved.

[0003] To this end, a prefabricated building roof exhaust structure and construction method are provided to solve the height adaptation problem and cost problem of the exhaust pipe. Summary of the invention

[0004] The object of the present invention is to provide a prefabricated building roof exhaust structure and a construction method to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A prefabricated building roof exhaust structure and construction method, comprising a roof structure top plate, the upper end surface of the roof structure top plate is cast with a reinforced concrete base, an exhaust pipe is vertically inserted into the upper inner cavity of the reinforced concrete base, fine stone concrete is cast between the reinforced concrete base and the lower outer wall of the exhaust pipe, a decorative flashing metal frame is installed on the outer side of the reinforced concrete base, the lower end of the decorative flashing metal frame is fixedly installed on the upper end surface of the roof structure top plate, the decorative flashing metal frame is concentrically sleeved on the outer side of the exhaust pipe, and the decorative flashing metal frame is A gap is left between the inner wall and the outer wall of the reinforced concrete base, and the decorative flashing side panels are fitted on the outer walls of the decorative flashing metal frame. The decorative flashing panel is sleeved on the upper end of the decorative flashing metal frame, and the upper end surface of the decorative flashing panel is provided with a first slot that runs through the side position from top to bottom. The upper and lower end surfaces of the decorative flashing side panels are respectively vertically welded with an upper plug plate and a lower plug plate, and the upper plug plate is plugged into the first slot. The decorative flashing panel is fitted on the upper end surface of the decorative flashing metal frame, and the upper end of the decorative flashing panel is provided with sealant.

[0007] A construction method for an assembled building roof exhaust structure, the construction method comprising the following steps:

[0008] Step 1: Basic positioning, determine the center position of the exhaust position according to the construction requirements;

[0009] Step 2: Build the model, tie the steel bars according to the positioning position, and set the inner and outer templates with circular rings at the upper end of the exhaust vent;

[0010] Step 3: pouring the base, pouring concrete in the gap between the inner and outer formwork constructed in step 2, pouring the roof structure top plate and the reinforced concrete base at the same time, and testing its strength after standing and air drying. When the strength is not less than %, remove the inner and outer formwork;

[0011] Step 4: Pipe installation: insert a certain length of metal or PVC exhaust pipe into the inner cavity ring formed by the inner cavity of the reinforced concrete base, then align the metal or PVC exhaust pipe with the center, hang it vertically, and fix it. Pour the gap between the metal pipe or PVC exhaust pipe and the inner wall of the foundation with fine stone concrete;

[0012] Step 5: Install the decorative panel. Fix the decorative flashing metal frame on the roof structure top plate. The fixing position should be symmetrical with the metal or PVC exhaust pipe. Then use the decorative flashing side panels to seal the surrounding area. The upper part of the decorative flashing panel needs to be closed. A through hole needs to be set in the center of the panel. The gap between the through hole and the outer wall of the metal or PVC exhaust pipe should be sealed with silicone sealant.

[0013] Step 6: Install the hood. Install the hemispherical hood and fix the hemispherical hood to the metal or PVC exhaust pipe with self-tapping screws.

[0014] Preferably, a hemispherical hood is provided at the upper end of the exhaust duct, and a louver fan distributed in a circumferential array is rotatably mounted in the upper inner cavity of the hemispherical hood, and the lower end of the hemispherical hood is fixedly welded to the upper end surface of the exhaust duct.

[0015] Preferably, a through hole is opened in the middle of the upper end surface of the decorative flashing panel, the through hole is sleeved on the outer wall of the exhaust pipe, the inner diameter of the through hole is larger than the exhaust pipe, and the sealant is embedded and bonded in the gap between the through hole and the arc outer wall of the exhaust pipe.

[0016] Preferably, the lower end surface of the decorative flashing metal frame is provided with four extended ear seats distributed in a circumferential array, and the upper ends of the extended ear seats are fixedly mounted on the upper end surface of the roof structure top plate by fixing screws.

[0017] Preferably, a second slot penetrating from top to bottom is provided on a side of the upper end of the extending ear seat close to the decorative flashing side plate, and the lower plug plate is vertically plugged and installed in the inner cavity of the second slot.

[0018] Preferably, the upper and lower ends of the outer side of the decorative flashing metal frame are provided with protective plates with right-angle cross-sections, the protective plates are fixedly welded to the outer wall of the decorative flashing metal frame, and the other side of the protective plates is attached to the decorative flashing side panels and the decorative flashing panel.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The present invention satisfies the roof exhaust function by adopting a new construction method, realizes assembly production and assembly, improves work efficiency and reduces engineering costs. At the same time, exhaust is achieved through a hemispherical hood composed of stainless steel plate slices. A louver fan is provided in the inner cavity of the hemisphere, which has the functions of exhaust and rain protection;

[0021] 2. The present invention realizes accurate installation and convenient plug-in of the decorative panel by using the combination of the slot and the plug-in plate, thereby greatly improving the installation efficiency and the sealing of the connection position, avoiding accidents such as water seepage. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the present invention;

[0023] Figure 2 A top view of the present invention;

[0024] Figure 3 It is a schematic diagram of the three-dimensional structure of the decorative flashing side plate of the present invention;

[0025] Figure 4 It is a schematic diagram of the three-dimensional structure of the decorative flashing panel of the present invention;

[0026] Figure 5 It is an enlarged construction flow chart of the present invention.

[0027] In the figure: 1. roof structure top plate; 2. reinforced concrete base; 3. exhaust duct; 4. fine stone concrete; 5. decorative flashing metal frame; 6. decorative flashing side panels; 7. hemispherical hood; 8. decorative flashing panel; 9. sealant; 10. extension ear seat; 11. fixing screws; 12. protective sheet; 13. louver; 14. upper plug plate; 15. first slot; 16. lower plug plate; 17. through hole; 18. second slot. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] See also Figures 1 to 5 , the present invention provides a technical solution:

[0030] An assembled building roof exhaust structure and construction method, comprising a roof structure top plate 1, the upper end surface of the roof structure top plate 1 is concrete-cast and installed with a reinforced concrete base 2, the upper end inner cavity of the reinforced concrete base 2 is vertically plugged with an exhaust pipe 3, and the exhaust pipe 3 is plugged and installed by using the reinforced concrete base 2.

[0031] Fine stone concrete 4 is poured between the reinforced concrete base 2 and the outer wall of the lower end of the exhaust pipe 3, and the position of the exhaust pipe 3 is fixed by the fine stone concrete 4.

[0032] A hemispherical hood 7 is provided at the upper end of the exhaust pipe 3, and a louver fan 13 distributed in a circular array is rotatably installed in the upper inner cavity of the hemispherical hood 7. The lower end of the hemispherical hood 7 is fixedly welded to the upper end surface of the exhaust pipe 3. Exhaust is achieved through the hemispherical hood 7 composed of stainless steel plate slices. The louver fan 13 arranged in the hemispherical surface has the functions of exhaust and rain protection.

[0033] A decorative flashing metal frame 5 is installed on the outer side of the reinforced concrete base 2, and the lower end of the decorative flashing metal frame is fixedly installed on the upper end surface of the roof structure top plate 1. The decorative flashing metal frame 5 is concentrically sleeved on the outer side of the exhaust pipe 3. The lower end surface of the decorative flashing metal frame 5 is provided with four extended ear seats 10 distributed in a circular array, and the upper end of the extended ear seat 10 is fixedly installed on the upper end surface of the roof structure top plate 1 by fixing screws 11. The fixed installation of the decorative flashing metal frame 5 is achieved by the cooperation of the extended ear seat 10 and the fixing screws 11.

[0034] The upper and lower ends of the outer side of the decorative flashing metal frame 5 are provided with protective sheets 12 with a right-angle cross-section. The protective sheets 12 are fixedly welded to the outer wall of the decorative flashing metal frame 5, and the other side of the protective sheets 12 is attached to the decorative flashing side panels 6 and the decorative flashing panel 8. The protective sheets 12 are used to achieve wear-resistant protection, thereby avoiding mutual friction damage with the outer decorative panels.

[0035] A through hole 17 is formed in the middle of the upper end surface of the decorative flashing panel 8, and the through hole 17 is sleeved on the outer wall of the exhaust pipe 3. The inner diameter of the through hole 17 is larger than the exhaust pipe 3. The sealant 9 is embedded and bonded in the gap between the through hole 17 and the arc outer wall of the exhaust pipe 3. The decorative flashing panel 8 is attached to the upper end surface of the decorative flashing metal frame 5, and the upper end of the decorative flashing panel 8 is provided with sealant 9, and the decorative flashing panel 8 is fixedly installed by the sealant 9.

[0036] A gap is left between the inner wall of the decorative flashing metal frame 5 and the outer wall of the reinforced concrete base 2, and the decorative flashing side panels 6 are fitted on the outer walls of the decorative flashing metal frame 5. The upper and lower end surfaces of the decorative flashing side panels 6 are vertically welded with an upper plug plate 14 and a lower plug plate 16 respectively. A second slot 18 that runs through the upper and lower ends of the extended ear seat 10 is provided on one side close to the decorative flashing side panel 6. The lower plug plate 16 is vertically plugged into the inner cavity of the second slot 18. The lower plug plate 16 cooperates with the second slot 18 to achieve fixed plug-in installation of the lower end of the decorative flashing side panel 6.

[0037] The decorative flashing panel 8 is sleeved and installed on the upper end of the decorative flashing metal frame 5. The upper end surface of the decorative flashing panel 8 is provided with a first slot 15 that penetrates up and down at the side position. The upper plug-in plate 14 is plugged and installed in the first slot 15. The first slot 15 cooperates with the upper plug-in plate 14 to achieve precise position connection between the decorative flashing panel 8 and the decorative flashing side panel 6.

[0038] A construction method for an assembled building roof exhaust structure, the construction method comprising the following steps:

[0039] Step 1: Basic positioning, determine the center position of the exhaust position according to the construction requirements;

[0040] Step 2: Build the model, tie the steel bars according to the positioning position, and set the inner and outer templates with circular rings at the upper end of the exhaust vent;

[0041] Step 3: pouring the base, pouring concrete in the gap between the inner and outer formworks constructed in step 2, pouring the roof structure top plate 1 and the reinforced concrete base 2 at the same time, and testing their strength after standing and air drying. When the strength is not less than 70%, remove the inner and outer formworks;

[0042] Step 4: Pipe installation: insert a certain length of metal or PVC exhaust pipe 3 into the inner cavity ring surrounded by the inner cavity of the reinforced concrete base 2, then align the metal or PVC exhaust pipe 3 with the center, hang it vertically, and fix it. Pour the gap between the metal pipe or PVC exhaust pipe 3 and the inner wall of the foundation with fine stone concrete 4;

[0043] Step 5: Install the decorative panel. Fix the decorative flashing metal frame 5 on the roof structure top plate 1. The fixing position should be symmetrical with the metal or PVC exhaust pipe 3. Then use the decorative flashing side plate 6 to seal the surrounding area. The upper part is closed with the decorative flashing panel 8. A through hole 17 needs to be set in the center of the panel surface. The gap between the through hole 17 and the outer wall of the metal or PVC exhaust pipe 3 is sealed with silicone sealant 9.

[0044] Step 6: Install the wind hood. Install the hemispherical wind hood 7. Fix the hemispherical wind hood 7 and the metal or PVC exhaust pipe 3 with self-tapping screws.

[0045] Working principle: First, the reinforced concrete base 2 is cast while the roof structure plate 1 is cast. When the strength of the roof structure plate 1 and the reinforced concrete base 2 is not less than 70%, the exhaust pipe 3 is vertically plugged and installed. Before installing the exhaust pipe 3, the hemispherical wind hood 7 should be fixed to one end of the exhaust pipe 3 with self-tapping screws and placed on the top. Exhaust is achieved through the hemispherical wind hood 7 composed of stainless steel plate slices. The shutter fan 13 arranged in the hemispherical sphere has the functions of exhaust and rain protection.

[0046] The exhaust pipe 3 should be installed perpendicular to the horizontal plane of the concrete base 2 and centered on the concrete base 2, and then fine stone concrete 4 is poured in the gap between the exhaust pipe 3 and the inner wall of the foundation to fix the position of the exhaust pipe 3 using the fine stone concrete 4.

[0047] When the strength of the fine stone concrete 4 reaches 70%, the decorative flashing metal frame 5 is installed. The center of the decorative flashing metal frame 5 should coincide with the center of the exhaust pipe 3. The extended ear seat 10 and the fixing screw 11 are used to achieve the fixed installation of the decorative flashing metal frame 5. The protective sheet 12 is used to achieve the effect of wear-resistant protection, thereby avoiding mutual friction damage with the outer decorative panel.

[0048] After the decorative flashing metal frame 5 is firmly installed and passed the acceptance inspection, the decorative flashing side plate 6 and the decorative flashing panel 8 are installed. The lower plug-in plate 16 cooperates with the second slot 18 to achieve fixed plug-in installation of the lower end of the decorative flashing side plate 6. The first slot 15 cooperates with the upper plug-in plate 14 to achieve precise position connection between the decorative flashing panel 8 and the decorative flashing side plate 6, thereby achieving precise position installation and convenient plug-in of the decorative panel, thereby greatly improving the installation efficiency and improving the sealing of the connection position to avoid accidents such as water seepage. After the decorative flashing panel 8 is installed and passed the acceptance inspection, the sealant caulking 9 is constructed.

[0049] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An assembled building roof exhaust structure, comprising a roof structure top plate (1), characterized in that: The upper end surface of the roof structure top plate (1) is cast with a reinforced concrete base (2), an exhaust pipe (3) is vertically inserted into the upper inner cavity of the reinforced concrete base (2), fine stone concrete (4) is cast between the reinforced concrete base (2) and the lower outer wall of the exhaust pipe (3), a decorative flashing metal frame (5) is installed on the outer side of the reinforced concrete base (2), the lower end of the decorative flashing metal frame (5) is fixedly installed on the upper end surface of the roof structure top plate (1), the decorative flashing metal frame (5) is concentrically sleeved on the outer side of the exhaust pipe (3), and the inner wall of the decorative flashing metal frame (5) and the outer wall of the reinforced concrete base (2) are connected. A gap is left between the decorative flashing side panels (6) and the outer walls of the decorative flashing metal frame (5) are all fitted with decorative flashing side panels (6), the upper end of the decorative flashing metal frame (5) is sleeved with a decorative flashing panel (8), a first slot (15) penetrating from top to bottom is provided at the side edge of the upper end surface of the decorative flashing panel (8), an upper plug plate (14) and a lower plug plate (16) are respectively vertically welded to the upper and lower end surfaces of the decorative flashing side panels (6), the upper plug plate (14) is plugged and installed in the first slot (15), the decorative flashing panel (8) is fitted on the upper end surface of the decorative flashing metal frame (5), and a sealant (9) is provided at the upper end of the decorative flashing panel (8); The lower end surface of the decorative flashing metal frame (5) is provided with four extended ear seats (10) distributed in a circumferential array, the upper ends of the extended ear seats (10) are fixedly mounted on the upper end surface of the roof structure top plate (1) by means of fixing screws (11), the upper end of the extended ear seats (10) is provided with a second slot (18) penetrating from top to bottom on a side close to the decorative flashing side plate (6), the lower plug plate (16) is vertically plugged into the inner cavity of the second slot (18), the upper end of the exhaust pipe (3) is provided with a hemispherical hood (7), the upper end inner cavity of the hemispherical hood (7) is rotatably mounted with shutters (13) distributed in a circumferential array, and the lower end of the hemispherical hood (7) is fixedly welded to the upper end surface of the exhaust pipe (3).

2. The construction method of a prefabricated building roof exhaust structure according to claim 1, characterized in that: The construction method comprises the following steps: Step 1: Basic positioning, determine the center position of the exhaust position according to the construction requirements; Step 2: Build the model, tie the steel bars according to the positioning position, and set up the inner and outer templates in a circular shape at the upper end of the exhaust vent; Step 3: pouring the base, pouring concrete in the gap between the inner and outer formworks constructed in step 2, pouring the roof structure top plate (1) and the reinforced concrete base (2) at the same time, and testing their strength after standing and air drying. When the strength is not less than 70%, remove the inner and outer formworks; Step 4: Pipe installation, insert a metal exhaust pipe (3) of a certain length into the inner cavity ring formed by the inner cavity of the reinforced concrete base (2), then align the metal exhaust pipe (3) with the center, then hoist it vertically and fix it, and pour the gap between the metal exhaust pipe (3) and the inner wall of the foundation with fine stone concrete (4); Step 5: Install the decorative panel. Fix the decorative flashing metal frame (5) on the roof structure top plate (1). The fixing position should be symmetrical with the metal exhaust pipe (3). Then, use the decorative flashing side plate (6) to seal the surrounding area. The upper part is sealed with the decorative flashing panel (8). A through hole (17) needs to be set in the center of the panel surface. The gap between the through hole (17) and the outer wall of the metal exhaust pipe (3) is sealed with silicone sealant (9). Step 6: Install the hood. Install the hemispherical hood (7). Use self-tapping screws to fix the hemispherical hood (7) and the metal exhaust pipe (3).

3. The construction method of the assembled building roof exhaust structure according to claim 2, characterized in that: A through hole (17) is formed in the middle of the upper end surface of the decorative flashing panel (8), the through hole (17) is sleeved on the outer wall of the exhaust pipe (3), the inner diameter of the through hole (17) is larger than the exhaust pipe (3), and the sealant (9) is embedded and bonded in the gap between the through hole (17) and the arc outer wall of the exhaust pipe (3).

4. The construction method of the assembled building roof exhaust structure according to claim 2, characterized in that: The upper and lower ends of the outer side of the decorative flashing metal frame (5) are both provided with protective sheets (12) with a right-angle cross section, the protective sheets (12) are fixedly welded to the outer wall of the decorative flashing metal frame (5), and the other side of the protective sheets (12) is attached to the decorative flashing side panels (6) and the decorative flashing panel (8).

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