Fabricated roof-out air shaft structure

Abstract

The utility model discloses an assembly type out-of-roof air shaft structure which comprises a positioning shaft integrally formed with a roof panel, a prefabricated shaft arranged on the outer side of the positioning shaft in a sleeving mode, a prefabricated hoop beam arranged on the outer side of the prefabricated shaft in a sleeving mode and a shaft cover plate installed at the top end of the prefabricated shaft. The bottom face of the prefabricated hoistway and the bottom face of the prefabricated hoop beam are tightly attached to the top face of the roof panel, ventilation holes are formed in the prefabricated hoistway, an annular groove matched with the top end of the prefabricated hoistway is formed in the bottom face of the hoistway cover plate, and a roof pavement layer is arranged on the roof panel. And a roof waterproof layer of the roof pavement layer extends upwards from the roof panel and is paved on the outer side surface of the prefabricated hoistway. According to the utility model, the structure is simple, under the combined action of the positioning hoistway and the prefabricated hoop beam, the mounting position of the prefabricated hoistway can be accurately positioned, the mounting reliability and stability of the prefabricated hoistway can be ensured, the prefabricated assembly rate is high, the construction efficiency is greatly improved, the construction time is saved, and the waterproof effect is good.

Description

Technical Field

[0001] The utility model belongs to the technical field of building construction, and particularly relates to an assembled roof ventilation shaft structure. Background Art

[0002] The air shaft is a vertical passage or space used for ventilation and exhaust in a building. It plays an important role in ventilation, exhaust and fire smoke exhaust. The air shaft requires high-quality and long-life design and construction, good insulation and air tightness. The roof air shaft is connected to the ventilation shafts on other floors of the room. At present, the construction methods of roof air shafts are still mainly cast-in-place reinforced concrete structures and prefabricated assembled structures. The cast-in-place reinforced concrete structure has the problems of difficult formwork, inconvenient construction, and long construction period due to the age of concrete; the prefabricated assembled structure has poor installation position accuracy, complex installation structure and poor stability; therefore, a prefabricated roof air shaft structure that is easy to construct and has high installation accuracy should be provided. Utility Model Content

[0003] The technical problem to be solved by the present invention is to provide an assembled roof ventilation shaft structure in response to the deficiencies in the above-mentioned prior art. The structure is simple and the design is reasonable. Under the joint action of the positioning shaft and the prefabricated hoop beam, the structure can accurately locate the installation position of the prefabricated shaft and ensure the reliability and stability of the installation of the prefabricated shaft. The prefabrication assembly rate is high, which greatly improves the construction efficiency, saves construction time and has a good waterproof effect.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: an assembled roof air shaft structure, characterized in that it includes a positioning shaft integrally formed with the roof panel, a prefabricated shaft sleeved on the outside of the positioning shaft, a prefabricated hoop beam sleeved on the outside of the prefabricated shaft and a shaft cover installed on the top of the prefabricated shaft, the bottom surface of the prefabricated shaft and the bottom surface of the prefabricated hoop beam are both tightly attached to the top surface of the roof panel, the prefabricated shaft is provided with ventilation holes, the bottom surface of the shaft cover is provided with an annular groove matching the top of the prefabricated shaft, the roof panel is provided with a roof pavement layer, and the roof waterproof layer of the roof pavement layer extends upward from the roof panel and is laid to the outer surface of the prefabricated shaft.

[0005] The above-mentioned assembled roof air shaft structure is characterized in that: the positioning shaft and the prefabricated shaft are both rectangular shafts, the prefabricated hoop beams are rectangular hoop beams, the prefabricated shaft is formed by two parallel first side panels and two parallel second side panels, and the ventilation holes are opened on the second side panels.

[0006] The above-mentioned assembled roof ventilation shaft structure is characterized in that: the roof pavement layer includes a roof slope layer, a roof insulation layer, a roof leveling layer, a roof waterproof layer, a roof bonding layer and a roof surface layer laid in sequence from bottom to top, the roof waterproof layer is extended to a height of not less than 300mm on the outer surface of the prefabricated shaft, and the roof waterproof layer is sealed by a flashing aluminum alloy strip.

[0007] Compared with the prior art, the present invention has the following advantages:

[0008] 1. The utility model sets a positioning well formed as a whole with the roof panel, sets a prefabricated well outside the positioning well, and sets a prefabricated hoop beam outside the prefabricated well. During actual installation, the prefabricated hoop beam is installed first to form an annular installation cavity between the prefabricated hoop beam and the positioning well, and then the prefabricated well is installed. It is only necessary to clamp the bottom of the prefabricated well into the annular installation cavity so that the bottom of the prefabricated well is located between the positioning well and the prefabricated hoop beam. Under the joint action of the positioning well and the prefabricated hoop beam, the installation position of the prefabricated well can be accurately positioned, and the reliability and stability of the installation of the prefabricated well can be guaranteed.

[0009] 2. The utility model installs a manhole cover plate on the top of the prefabricated manhole, and an annular groove matching the top of the prefabricated manhole is provided on the bottom surface of the manhole cover plate. During actual installation, it is only necessary to clamp the top of the prefabricated manhole into the annular groove to realize the installation of the manhole cover plate on the top of the prefabricated manhole, which is convenient for disassembly and assembly, saving time and effort.

[0010] 3. The utility model extends the roof waterproof layer of the roof pavement layer upward from the roof panel to the outer side of the prefabricated shaft. During actual construction, the roof waterproof layer is supported by mortar and covered on the top of the prefabricated hoop beam, and smoothly transitions to the outer side of the prefabricated shaft, thereby ensuring the waterproof effect of the bottom of the prefabricated hoop beam and the prefabricated shaft.

[0011] 4. The utility model has a high prefabrication and assembly rate, which greatly improves construction efficiency, saves construction time, and reduces construction labor intensity, making it easy to promote and apply.

[0012] To sum up, the utility model has a simple structure and a reasonable design. Under the joint action of the positioning shaft and the prefabricated hoop beam, it can accurately locate the installation position of the prefabricated shaft, and can ensure the reliability and stability of the installation of the prefabricated shaft. The prefabrication assembly rate is high, which greatly improves the construction efficiency, saves construction time, and has a good waterproof effect.

[0013] The present invention will be described in further detail below through the accompanying drawings and examples. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1It is a structural diagram of the present utility model.

[0015] Figure 2 for Figure 1 AA cross-sectional view.

[0016] Figure 3 It is a structural schematic diagram of the shaft cover of the present utility model.

[0017] Description of the accompanying drawings:

[0018] 1—Roof panel; 1-1—Positioning shaft; 2—Prefabricated hoop beam;

[0019] 3—first side panel; 4—second side panel; 5—ventilation holes;

[0020] 6—Shaft cover; 6-1—Annular groove; 7—Roof slope layer;

[0021] 8—Roof insulation layer; 9—Roof leveling layer; 10—Roof waterproofing layer;

[0022] 11—Roof bonding layer; 12—Roof surface layer; 13—Flashing aluminum alloy strip. DETAILED DESCRIPTION

[0023] like Figure 1 、 Figure 2 and Figure 3 As shown, the utility model includes a positioning shaft 1-1 integrally formed with the roof panel 1, a prefabricated shaft mounted on the outside of the positioning shaft 1-1, a prefabricated hoop beam 2 mounted on the outside of the prefabricated shaft and a shaft cover 6 installed on the top of the prefabricated shaft, the bottom surface of the prefabricated shaft and the bottom surface of the prefabricated hoop beam 2 are both tightly attached to the top surface of the roof panel 1, the prefabricated shaft is provided with ventilation holes 5, and the bottom surface of the shaft cover 6 is provided with an annular groove 6-1 matching the top of the prefabricated shaft, the roof panel 1 is provided with a roof pavement layer, and the roof waterproof layer 10 of the roof pavement layer extends upward from the roof panel 1 and is laid to the outer surface of the prefabricated shaft.

[0024] In this embodiment, a positioning shaft 1-1 integrally formed with the roof panel 1 is provided, a prefabricated shaft is installed on the outside of the positioning shaft 1-1, and a prefabricated hoop beam 2 is installed on the outside of the prefabricated shaft. During actual installation, the prefabricated hoop beam 2 is installed first, so that an annular installation cavity is formed between the prefabricated hoop beam 2 and the positioning shaft 1-1, and then the prefabricated shaft is installed. It is only necessary to clamp the bottom of the prefabricated shaft in the annular installation cavity so that the bottom of the prefabricated shaft is located between the positioning shaft 1-1 and the prefabricated hoop beam 2. Under the joint action of the positioning shaft 1-1 and the prefabricated hoop beam 2, the installation position of the prefabricated shaft can be accurately positioned, and the reliability and stability of the installation of the prefabricated shaft can be guaranteed.

[0025] In this embodiment, a manhole cover plate 6 is installed at the top of the prefabricated manhole, and an annular groove 6-1 matching the top of the prefabricated manhole is provided on the bottom surface of the manhole cover plate 6. During actual installation, it is only necessary to clamp the top of the prefabricated manhole in the annular groove 6-1 to achieve the installation of the manhole cover plate 6 at the top of the prefabricated manhole, which is convenient for assembly and disassembly, saving time and effort.

[0026] In this embodiment, the roof waterproof layer 10 of the roof pavement layer is extended upward from the roof panel 1 and laid on the outer side of the prefabricated shaft. During actual construction, the roof waterproof layer 10 is supported by mortar and covered on the top of the prefabricated hoop beam 2, and smoothly transitions to the outer side of the prefabricated shaft, thereby ensuring the waterproof effect of the prefabricated hoop beam 2 and the bottom of the prefabricated shaft.

[0027] In this embodiment, the height of the prefabricated hoop beam 2 is equal to the height of the positioning shaft 1 - 1 , and the height of the positioning shaft 1 - 1 ranges from 250 mm to 300 mm.

[0028] In this embodiment, the depth of the annular groove 6 - 1 ranges from 80 mm to 100 mm.

[0029] like Figure 2 As shown, in this embodiment, the positioning shaft 1-1 and the prefabricated shaft are both rectangular shafts, the prefabricated hoop beam 2 is a rectangular hoop beam, the prefabricated shaft is formed by two parallel first side panels 3 and two parallel second side panels 4, and the ventilation holes 5 are opened on the second side panels 4.

[0030] like Figure 1 As shown, in this embodiment, the roof pavement layer includes a roof slope layer 7, a roof insulation layer 8, a roof leveling layer 9, a roof waterproof layer 10, a roof bonding layer 11 and a roof surface layer 12, which are laid in sequence from bottom to top. The roof waterproof layer 10 is extended to a height of not less than 300 mm on the outer surface of the prefabricated well, and the roof waterproof layer 10 is sealed by a flashing aluminum alloy strip 13.

[0031] like Figure 1 、 Figure 2 and Figure 3As shown, during actual construction, first, the prefabricated hoop beam 2 is installed to form two first side panel installation cavities and two second side panel installation cavities between the prefabricated hoop beam 2 and the positioning shaft 1-1; then, the two first side panels 3 and the two second side panels 4 are inserted, and special construction glue is injected into the joints between the adjacent first side panels 3 and the second side panels 4 to fill the gaps in the joints and complete the assembly of the rectangular shaft; then, the shaft cover plate 6 can be installed on the top of the rectangular shaft by simply clamping the top of the rectangular shaft into the annular groove 6-1; then, the roof pavement layer is laid on the roof panel 1; finally, the assembled roof ventilation shaft is subjected to exterior finishing treatment, using cement mortar for finishing, and the top surface of the shaft cover plate 6 is sloped according to the design requirements. The roof ventilation shaft structure has a high prefabrication rate, which greatly improves construction efficiency, saves construction time, and reduces construction labor intensity, making it easy to promote and apply.

[0032] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any way. Any simple modification, change and equivalent structural change made to the above embodiment based on the technical essence of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. An assembled roof ventilation shaft structure, characterized by: The invention comprises a positioning well (1-1) integrally formed with a roof panel (1), a prefabricated well (1-1) sleeved on the outside of the positioning well (1-1), a prefabricated hoop beam (2) sleeved on the outside of the prefabricated well, and a well cover (6) installed on the top of the prefabricated well, wherein the bottom surface of the prefabricated well and the bottom surface of the prefabricated hoop beam (2) are both closely attached to the top surface of the roof panel (1), the prefabricated well is provided with ventilation holes (5), the bottom surface of the well cover (6) is provided with an annular groove (6-1) matching the top of the prefabricated well, the roof panel (1) is provided with a roof paving layer, and the roof waterproof layer (10) of the roof paving layer extends upward from the roof panel (1) and is paved on the outer surface of the prefabricated well.

2. The assembled roof ventilation shaft structure according to claim 1, characterized in that: The positioning shaft (1-1) and the prefabricated shaft are both rectangular shafts, the prefabricated hoop beam (2) is a rectangular hoop beam, the prefabricated shaft is formed by being surrounded by two parallel first side panels (3) and two parallel second side panels (4), and the ventilation holes (5) are provided on the second side panels (4).

3. The assembled roof ventilation shaft structure according to claim 1, characterized in that: The roof paving layer comprises a roof slope layer (7), a roof insulation layer (8), a roof leveling layer (9), a roof waterproof layer (10), a roof bonding layer (11) and a roof surface layer (12) which are laid in sequence from bottom to top. The roof waterproof layer (10) is extended to a height of not less than 300 mm on the outer surface of the prefabricated well, and the roof waterproof layer (10) is sealed by a flashing aluminum alloy strip (13).

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