Assembly type externally-hung exhaust duct system

Abstract

The utility model discloses an assembly type externally-hung exhaust passage system which comprises an air cap and a plurality of through externally-hung exhaust passage bodies, the externally-hung exhaust passage bodies are in butt joint up and down to form an exhaust passage, and the air cap is detachably installed over the externally-hung exhaust passage body located at the top through a connecting flange; wherein a reinforcing framework is prefabricated on the externally-hung exhaust duct body, a connecting hole is formed in the butt joint end, close to the externally-hung exhaust duct body, of the reinforcing framework, a fixing piece is arranged in the connecting hole, and the fixing piece penetrates through the connecting hole and is fixed into a building outer wall so that the externally-hung exhaust duct body can be tightly attached to the building outer wall. According to the utility model, a modularized stress system can be formed while the assembly type installation is realized, the installation effect is more stable, and the later maintenance is more convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of externally-hung exhaust duct, in particular to an assembled externally-hung exhaust duct system. BACKGROUND

[0002] In China, a residential common exhaust duct system has been used in high-rise residential buildings for a long time. The system collects and discharges the oil fume from the kitchen and the foul gas from the bathroom to the roof, and then realizes high-altitude dilution and discharge, so as to improve the indoor air quality and create a healthy environment.

[0003] The current residential common exhaust duct system is an internal flue system, and the length of the flue is generally consistent with the floor height. During construction, the upper and lower finished flues are connected and installed at the floor position. This installation method needs to pass through each floor in the room, so it needs to be constructed during construction, which has defects such as occupying indoor area and being difficult to construct.

[0004] The traditional externally-hung flue is built after the completion of the main structure, and then the remaining outer wall of the flue is built, plastered, and painted or tiled (or an aluminum panel is used to seal the outer wall). An inner liner is arranged in the flue to prevent smoke leakage.

[0005] However, the method such as the traditional externally-hung flue cannot be applied to the current medium and high-rise buildings, and it also does not meet the development trend of prefabricated buildings. At the present stage, the residential buildings need to meet the requirements of green construction and ensure fire safety, and the prefabricated externally-hung exhaust duct system gradually becomes a new development direction of the residential common exhaust duct system. Based on this, the present application proposes a new prefabricated externally-hung exhaust duct system. SUMMARY

[0006] To at least partially solve the problems in the prior art, the main purpose of the present application is to provide a prefabricated externally-hung exhaust duct system.

[0007] To achieve the above main purpose, the present application discloses a prefabricated externally-hung exhaust duct system, which comprises a wind cap and a plurality of externally-hung exhaust duct bodies. The plurality of externally-hung exhaust duct bodies are connected in a top-down manner to form an exhaust passage. The wind cap is detachably installed above the externally-hung exhaust duct body at the top through a connecting flange, and is used to guide the smoke in the exhaust passage to be discharged. A reinforcing framework is prefabricated on the externally-hung exhaust duct body. A connecting hole is arranged on the reinforcing framework adjacent to the connecting end of the externally-hung exhaust duct body. A fixing member is arranged in the connecting hole and fixed to the building outer wall, so that the externally-hung exhaust duct body is tightly attached to the building outer wall.

[0008] According to one specific embodiment of the utility model, the reinforcing framework comprises reinforcing steel bars, and the reinforcing steel bars are prefabricated inside the externally-hung air exhaust duct body.

[0009] Further, the connecting holes are arranged to pass through the side walls of the externally-hung air exhaust duct body through the gaps between the different reinforcing steel bars.

[0010] Further, the reinforcing framework further comprises reinforcing members connected to the reinforcing steel bars, the reinforcing members are arranged at the abutting ends of the externally-hung air exhaust duct body, and the connecting holes are arranged to pass through the reinforcing members.

[0011] Further, the reinforcing members are reinforcing steel plates welded together with the reinforcing steel bars.

[0012] According to one specific embodiment of the utility model, the length of the reinforcing member in the length direction of the externally-hung air exhaust duct body is set to be more than 80 mm.

[0013] According to one specific embodiment of the utility model, the reinforcing framework further comprises pre-buried members, the inner ends of the pre-buried members are connected to the reinforcing steel bars, the outer ends of the pre-buried members extend to the side of the side wall of the externally-hung air exhaust duct body closely attached to the building outer wall, and the connecting holes are arranged at the outer ends of the pre-buried members.

[0014] Further, the pre-buried members are L-shaped or Z-shaped, and the outer ends of the pre-buried members are installed into the grooves of the building outer wall.

[0015] According to one specific embodiment of the utility model, the connecting flanges are metal flanges.

[0016] According to one specific embodiment of the utility model, the fixing members are anchor members.

[0017] The utility model has the following beneficial effects: a prefabricated externally-hung air exhaust duct system is provided, which adopts a modularized and standardized externally-hung air exhaust duct body and a hood, and is conducive to realizing prefabricated installation; the reinforcing framework is prefabricated on the externally-hung air exhaust duct body, and the structural strength is higher; each externally-hung air exhaust duct body is fixed through the fixing members during installation, the reinforcing framework formed by the externally-hung air exhaust duct body is used for overall installation, thereby forming a modularized stress system, and the installation effect is more stable. In addition, each externally-hung air exhaust duct body can be independently removed and replaced, and maintenance is more convenient.

[0018] In order to more clearly illustrate the purpose, technical scheme and advantages of the utility model, the utility model will be further described in detail below with reference to the drawings and specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is the structural schematic diagram of the externally-hung air exhaust duct system embodiment 1 of the utility model;

[0020] Figure 2 This is a cross-sectional view of Embodiment 1 of the external exhaust duct system of this utility model;

[0021] Figure 3 It is a cross-sectional view of the main body of the external exhaust duct;

[0022] Figure 4 This is another installation diagram of Embodiment 1 of the external exhaust duct system of this utility model;

[0023] Figure 5 This is a schematic diagram of the structure of Embodiment 2 of the external exhaust duct system of this utility model;

[0024] Figure 6 This is a cross-sectional view of Embodiment 2 of the external exhaust duct system of this utility model;

[0025] Figure 7 This is a structural schematic diagram of Embodiment 3 of the external exhaust duct system of this utility model. Detailed Implementation

[0026] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0027] Many specific details are set forth in the following description in conjunction with embodiments in order to provide a full understanding of the present invention. However, it should be understood that the following embodiments and detailed description are for illustrative purposes only and do not limit the scope of protection of the present invention.

[0028] Example 1

[0029] Example 1 provides a prefabricated external exhaust system, such as Figures 1-2 As shown, the structure includes an exterior wall 10, a vent cap 20, and multiple through-type external exhaust duct bodies 30. These bodies are sequentially connected vertically to form an exhaust channel. The vent cap 20 is detachably mounted above the top external exhaust duct body 30 via a connecting flange 40, guiding the exhaust gas from the exhaust channel. Specifically, the connecting flange 40 is a metal flange with a lower connecting end 41 that extends into the external exhaust duct body 30 and an upper bearing end 42 that supports the connecting pipe 21 of the vent cap 20. The lower connecting end 41 is fixed to the external exhaust duct body 30, for example, by riveting or bolting. The connecting pipe 21 of the vent cap 20 is supported on the upper bearing end 42 and fixed by bolts, and can also be reinforced by auxiliary welding.

[0030] like Figure 3As shown, the outer-hanging exhaust duct body 30 is prefabricated with a reinforcing framework 31, which includes a plurality of reinforcing steel bars 31a prefabricated inside the outer-hanging exhaust duct body 30, for example, directly formed in the outer-hanging exhaust duct body 30 during the manufacturing process of the outer-hanging exhaust duct body 30, and the reinforcing steel bars 31a are preferably located in the middle in the wall thickness direction. The abutting end of the outer-hanging exhaust duct body 30 is provided with a connecting hole 32, which can also be considered to be formed on the reinforcing framework 31, and is specifically arranged to penetrate the side wall of the outer-hanging exhaust duct body 30 through the gaps between different reinforcing steel bars 31a. The connecting hole 32 is provided with a fixing member 33, which penetrates the connecting hole 32 and is fixed in the building outer wall 10 to make the outer-hanging exhaust duct body 30 tightly adhere to the building outer wall 10.

[0031] The fixing member 33 in the embodiment can be an anchor member, for example, a chemical anchor; and the number of fixing members 33 on the same side wall of the outer-hanging exhaust duct body 30 is preferably two, three or even more, as long as the effective fixing of the outer-hanging exhaust duct body 30 can be achieved, and the specific number thereof is not limited here.

[0032] Further, a pre-buried seat (not shown in the figure) matched with the fixing member 33 can also be pre-buried on the building outer wall 10, for example, a pre-buried seat of a metal plate / block, which is pre-buried during the construction of the building outer wall 10 to form a more firm connection between the fixing member 33 and the pre-buried seat. A specific assembly process of the embodiment is as follows:

[0033] 1) A drill is used to drill mounting holes 11 matched with the fixing member 33 on the building outer wall 10 in sequence, and the mounting holes 11 are provided through the pre-buried member when the pre-buried member is used;

[0034] 2) A single-section outer-hanging exhaust duct body 30 is hoisted by, for example, a hanging basket construction operation technique, the connecting hole 32 is aligned with the mounting hole 11, and the fixing member 33 is installed;

[0035] 3) Waterproof mortar, for example, M15 waterproof mortar, is filled in the joint between the outer-hanging exhaust duct body 30 and the building outer wall 10;

[0036] 4) After the outer-hanging exhaust duct body 30 located below is installed in place, waterproof mortar is spread on the upper end surface of the outer-hanging exhaust duct body 30 located below;

[0037] 5) The above operation is repeated to install the outer-hanging exhaust duct body 30 located above, and the end surfaces of the two-section outer-hanging exhaust duct bodies 30 are kept aligned during installation.

[0038] The assembled outer-hanging exhaust duct system in the embodiment can not only be assembled in the scenario of being attached to two walls as shown, but also can be assembled in the scenario of being attached to one wall. Figure 2 Figure 4 ​The two scenarios can realize rapid assembly and have the advantage of high stability.

[0039] Embodiment 2

[0040] Embodiment 2 provides an assembled external exhaust duct system. On the basis of embodiment 1, the reinforcing framework 31 of embodiment 2 further comprises a reinforcing member 31b connected with the reinforcing steel bars 31a. The reinforcing member 31b is arranged at the abutting end of the external exhaust duct body 30, and the connecting hole 32 is arranged to penetrate the reinforcing member 31b.

[0041] Optionally, the reinforcing member 31b is a reinforcing steel plate welded with the reinforcing steel bars 31a, as shown in the figure. Figures 5-6 As shown in the figure, the reinforcing steel plate can also be prefabricated inside the external exhaust duct body 30, and is preferably located at the middle of the external exhaust duct body 30 in the wall thickness direction. This is conducive to improving the strength of the end of the external exhaust duct body 30 and realizing a stable stress system of the external exhaust duct body 30, thereby maintaining the stability of the structure for a long time.

[0042] Further, the length of the reinforcing member 31b in the length direction of the external exhaust duct body 30 is set to be more than 80 mm, for example, 100 mm, and for example, 120 mm, as long as it can realize the installation of the fixing member 33 and has high structural strength; the length direction here is the height direction when the external exhaust duct body 30 is vertically installed.

[0043] Embodiment 3

[0044] Embodiment 3 provides an assembled external exhaust duct system. On the basis of embodiment 1, the reinforcing framework 31 of embodiment 3 further comprises a pre-buried member 31c, as shown in the figure. Figure 7 As shown in the figure, the pre-buried member 31c is in L or Z shape. The inner end of the pre-buried member 31c is connected with the reinforcing steel bars 31a, and the outer end of the pre-buried member 31c extends to the side of the side wall of the external exhaust duct body 30 close to the building outer wall 10. The connecting hole 32 is arranged at the outer end of the pre-buried member 31c.

[0045] The pre-buried member 31c is preferably a metal member, which is welded to the reinforcing steel bars 31a to form a stable connection. The pre-buried member 31c can also be welded with the reinforcing steel bars 31a in advance, and then directly formed during the prefabrication of the external exhaust duct body 30, which is more convenient and efficient for production.

[0046] As an extension or variation of the above embodiment, the building outer wall 10 can also be provided with a recess 12, which is matched with the outer end of the embedded component 31c, that is, the outer end of the embedded component 31c is installed into the recess 12 of the building outer wall 10, so that the surface of the embedded component 31c is hidden, and the aesthetic appearance is improved.

[0047] As another extension or variation of the above embodiment, when the embedded component 31c is made of metal, and a metal type embedded component is pre-installed in the recess 12, the outer end of the embedded component 31c can also not be provided with the mounting hole 32, and the outer end of the embedded component 31c and the metal embedded component are directly welded by welding.

[0048] Although the present application is described above by embodiments, the above embodiments are only used to exemplarily describe the implementable solutions of the present application, and are not used to limit the protection scope of the present application, and any equivalent replacement or change made by those skilled in the art according to the present application should also be covered by the protection scope defined by the claims of the present application.

Claims

1. A prefabricated externally hung vent system, characterized in that The device comprises a hood and a plurality of externally-hung exhaust flue bodies, the plurality of externally-hung exhaust flue bodies are butted together to form an exhaust passage, the hood is detachably installed above the externally-hung exhaust flue body at the top through a connecting flange, and is used for guiding the flue gas in the exhaust passage to be discharged; wherein a reinforcing framework is prefabricated on the externally-hung exhaust flue body, a connecting hole is arranged on the reinforcing framework and close to the butt joint end of the externally-hung exhaust flue body, and a fixing member is arranged in the connecting hole and penetrates through the connecting hole and is fixed into the building outer wall so that the externally-hung exhaust flue body is tightly attached to the building outer wall.

2. The prefabricated externally hung vent system of claim 1, wherein: The reinforcing framework comprises reinforcing steel bars, and the reinforcing steel bars are prefabricated inside the externally-hung exhaust flue body.

3. The prefabricated externally hung vent system of claim 2, wherein: The connecting hole is arranged to penetrate through the side wall of the externally-hung exhaust flue body through the gap between different reinforcing steel bars.

4. The prefabricated externally hung vent system of claim 3, wherein: The reinforcing framework further comprises a reinforcing member connected with the reinforcing steel bars, the reinforcing member is arranged at the butt joint end of the externally-hung exhaust flue body, and the connecting hole is arranged to penetrate through the reinforcing member.

5. The prefabricated externally hung vent system of claim 4, wherein: The reinforcing member is a reinforcing steel plate welded with the reinforcing steel bars.

6. The prefabricated externally hung vent system of claim 4, wherein: The length of the reinforcing member in the length direction of the externally-hung exhaust flue body is greater than 80 mm.

7. The prefabricated externally hung vent system of claim 2, wherein: The reinforcing framework further comprises a pre-buried member, the inner end of the pre-buried member is connected with the reinforcing steel bars, the outer end of the pre-buried member extends to the side of the side wall of the externally-hung exhaust flue body tightly attached to the building outer wall, and the connecting hole is arranged at the outer end of the pre-buried member.

8. The prefabricated externally hung vent system of claim 7, wherein: The pre-buried member is in L shape or Z shape, and the outer end of the pre-buried member is installed into the groove of the building outer wall.

9. The prefabricated externally hung vent system of claim 1, wherein: The connecting flange is a metal flange.

10. The prefabricated externally hung vent system of claim 1, wherein: The fixing member is an anchor bolt.

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