Supporting and sealing structure at abutted seam of smoke duct and air duct

Abstract

The utility model discloses a supporting and sealing structure at a smoke and air duct splicing seam. The supporting and sealing structure comprises a floor, a cement smoke and air duct spliced at the floor, a supporting assembly connected to the interior of the cement smoke and air duct and located at the splicing position, and a bearing rib connected to the supporting assembly and penetrating out of the cement smoke and air duct. The bearing assembly comprises a bearing main part, a bearing notch formed in the bearing main part and a bearing carrying plate arranged at the notch. And a bearing rib penetrates through the bearing notch. The sealing device is used for splicing construction of finished cement flue gas ducts in the installation process of the finished cement flue gas ducts and improving the sealing performance. In the segmented installation process of the smoke and air duct, the upper and lower finished smoke and air ducts are in socket butt joint through the component, and the bearing ribs are arranged at the bearing notches, so that bearing is facilitated, and the width of a splicing seam cannot be increased due to the fact that protrusions are generated; according to the utility model, the butt-joint pipeline can be ensured to be straight up and down, and the butt-joint gap can be controlled within an allowable range.

Description

Technical Field

[0001] This utility model relates to the field of flue gas duct splice installation technology, and in particular to a support and sealing structure at the splice of a flue gas duct. Background Technology

[0002] Smoke and ventilation ducts are mainly used in residential kitchens and bathrooms, and their sealing performance directly affects the functionality of these spaces. Currently, the common installation method is to directly install prefabricated ducts, but this method has poor sealing performance and poses a risk of leakage. The drawbacks of existing technology are the difficulty in connecting the ducts, the tendency for misalignment, inaccurate duct positioning, and the possibility that the unloading reinforcement bars may be located at the joint between the upper and lower ducts, resulting in an excessively large gap. Even after connection, the limited space makes applying sealant mortar to the joint difficult, easily leading to incomplete sealing. Therefore, targeted support and sealing measures are needed at the joints and connections. Utility Model Content

[0003] This utility model provides a support and sealing structure for the joint of a flue gas duct, which solves the technical problems of convenient support, small gaps, and positioning installation at the joint of a flue gas duct.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A support and sealing structure for the joint of a flue gas duct includes a floor slab, a cement flue gas duct spliced ​​at the floor slab, a support component connected inside the cement flue gas duct and located at the joint, and a load-bearing reinforcement connected to the support component and extending out of the cement flue gas duct.

[0006] The load-bearing reinforcement extends into the floor slab and is covered by the rear sealing layer;

[0007] The support assembly includes a support main component, a support recess disposed on the support main component, and a support plate disposed at the recess.

[0008] The supporting recess is used to connect the bearing reinforcement.

[0009] Furthermore, the floor slab is provided with an opening for the cement flue gas duct to pass through, and the size of the opening is not smaller than the size of the cement flue gas duct.

[0010] Furthermore, the cement flue is a pre-made rectangular component, and the cement flue is assembled and connected within the building height range, with the joints located within the floor slab height range.

[0011] Furthermore, the cement flue has a notch corresponding to the support recess, and the notch is used to insert the bearing reinforcement.

[0012] Furthermore, the main supporting component is a vertical plate-shaped ring steel component, which is set according to the internal shape of the cement flue; the height of the main supporting component is at least three times the diameter of the bearing reinforcement and meets the design requirements for splicing and positioning of the cement flue.

[0013] Furthermore, the supporting recesses are provided on the upper part of the two opposite sides of the supporting main component, and at least two supporting recesses are provided on each side; the height of the supporting recesses on the opposite sides is set to correspond to the diameter of the bearing reinforcement.

[0014] Furthermore, the supporting plate is a rectangular short plate, which is horizontally arranged and vertically connected to the supporting main component; the supporting plate is supported on the floor slabs on both sides; the length of the supporting plate is greater than the wall thickness of the cement air duct.

[0015] Furthermore, the corresponding grooves in the floor slabs on both sides are chiseled out to support the supporting plates and reinforcing bars; the thickness of the grooves is not less than the diameter of the reinforcing bars; and the length of the supporting bars is not less than 10cm.

[0016] The beneficial effects of this utility model are reflected in:

[0017] This invention relates to a device for improving the sealing performance of prefabricated cement flue gas ducts during installation, specifically for the splicing of prefabricated flue gas ducts. During segmented installation, the upper and lower prefabricated flue gas ducts are joined using this component, with the load-bearing ribs positioned at the support recesses. This not only facilitates load-bearing capacity but also prevents protrusions that could increase the width of the splice joint. This invention ensures the straightness of the joined pipes and controls the joint gap within acceptable limits. Furthermore, using this device during flue gas duct installation aids in the adhesion and filling of sealing mortar at the joint gaps. It is simple to operate and easy to install, effectively solving the problem of loose joints in flue gas ducts. Moreover, using this device effectively solves the above problems, is simple to operate, and significantly increases material and installation costs while providing a substantial sealing effect and reducing the risk of smoke leakage.

[0018] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention; the main objectives and other advantages of this invention may be realized and obtained by means of the methods particularly pointed out in the description. Attached Figure Description

[0019] Figure 1 This is a vertical cross-sectional view of the installation of the support and sealing structure at the joint of the flue gas duct;

[0020] Figure 2 This is a schematic diagram of the connection between the supporting components and the load-bearing reinforcement.

[0021] Figure 3 This is a schematic diagram of the supporting component structure.

[0022] Attached reference numerals: 1-floor slab, 2-cement flue, 3-supporting component, 31-supporting main component, 32-supporting recess, 33-supporting support plate, 4-bearing reinforcement, 5-rear sealing layer. Detailed Implementation

[0023] Taking a residential building as an example, the building's flue is made of prefabricated cement pipes. To ensure accurate support and positioning at the joints of the cement flue, a support and sealing structure is installed at the joints of the flue.

[0024] like Figures 1 to 3 As shown, the joint support and sealing structure of the smoke duct includes a floor slab 1, a cement smoke duct 2 spliced ​​to the floor slab 1, a support component 3 connected inside the cement smoke duct 2 and located at the joint, and a load-bearing reinforcement 4 connected to the support component 3 and extending out of the cement smoke duct 2; the load-bearing reinforcement 4 extends into the floor slab 1 and is covered by the rear sealing layer 5.

[0025] The supporting component 3 includes a supporting main component 31, a supporting recess 32 provided on the supporting main component 31, and a supporting support plate 33 provided at the recess; the supporting recess 32 is connected to a bearing reinforcement 4.

[0026] In this embodiment, an opening for the cement flue duct 2 is provided at the floor slab 1, and the size of the opening is not smaller than the size of the cement flue duct 2. The cement flue duct 2 is a pre-fabricated rectangular component, which is assembled and connected within the building height range, and the joint is located within the height range of the floor slab 1. A notch is provided on the cement flue duct 2 corresponding to the supporting recess 32, and the notch is used to connect the supporting reinforcement 4.

[0027] In this embodiment, the supporting main component 31 is a vertical plate-shaped ring steel component, which is set according to the internal shape of the cement flue duct 2; the height of the supporting main component 31 is at least three times the diameter of the bearing reinforcement 4 and meets the design requirements for splicing and positioning of the cement flue duct 2. The supporting recesses 32 are set on the upper part of the two opposite sides of the supporting main component 31, and at least two supporting recesses 32 are set on each side; the height of the supporting recesses 32 on the opposite sides corresponds to the diameter of the bearing reinforcement 4. The supporting support plate 33 is a rectangular short plate, which is set horizontally and connected vertically to the supporting main component 31; the supporting support plate 33 is supported on the floor slabs 1 on both sides; the length of the supporting support plate 33 is greater than the wall thickness of the cement flue duct.

[0028] In the specific manufacturing process, a 60mm supporting main component 31 is made by bending and welding a 1.5mm thick galvanized steel plate. The upper and lower flue components are inserted 30mm each, with accurate positioning and controllable gaps. Two rectangular notches are bent on both sides to reserve space for the installation of unloading steel bars and overlap onto the cement flue duct 2.

[0029] In this embodiment, the grooves corresponding to the two floor slabs 1 are chiseled to support the support plate 33 and the load-bearing reinforcement 4; the thickness of the groove is not less than the diameter of the load-bearing reinforcement 4; the length of the load-bearing reinforcement 4 is not less than 10cm.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. A support and sealing structure for the joint of a flue gas duct, characterized in that, Includes a floor slab (1), a cement flue (2) spliced ​​at the floor slab (1), a support component (3) connected inside the cement flue (2) and located at the splice, and a load-bearing reinforcement (4) connected to the support component (3) and extending out of the cement flue (2). The load-bearing reinforcement (4) extends into the floor slab (1) and is covered by the rear sealing layer (5); The support component (3) includes a support main component (31), a support recess (32) provided on the support main component (31), and a support plate (33) provided at the recess. The supporting recess (32) is through which the bearing reinforcement (4) passes.

2. The flue gas duct joint support and sealing structure as described in claim 1, characterized in that, A hole is provided at the floor slab (1) for the cement flue (2) to pass through, and the size of the hole is not smaller than the size of the cement flue (2).

3. The flue gas duct joint support and sealing structure as described in claim 1, characterized in that, The cement flue (2) is a finished rectangular component. The cement flue (2) is assembled and connected within the building height range, and the joint is set within the height range of the floor slab (1).

4. The flue gas duct joint support and sealing structure as described in claim 1, characterized in that, The cement flue (2) has a notch corresponding to the support recess (32), and the notch is connected to the bearing reinforcement (4).

5. The flue gas duct joint support and sealing structure as described in claim 1, characterized in that, The supporting main component (31) is a vertical plate-shaped ring steel component, which is set according to the internal shape of the cement flue (2); the height of the supporting main component (31) is at least three times the diameter of the bearing reinforcement (4) and meets the splicing and positioning requirements of the cement flue (2) in the design.

6. The flue gas duct joint support and sealing structure as described in claim 1, characterized in that, The supporting recess (32) is provided on the upper part of the two opposite sides of the supporting main component (31), and at least two supporting recesses (32) are provided on each side; the height of the supporting recesses (32) on the opposite sides corresponds to the diameter of the bearing reinforcement (4).

7. The flue gas duct joint support and sealing structure as described in claim 1, characterized in that, The supporting plate (33) is a rectangular short plate. The supporting plate (33) is set horizontally and is vertically connected to the supporting main component (31). The supporting plate (33) is supported on the floor slabs (1) on both sides. The length of the supporting plate (33) is greater than the wall thickness of the cement air duct.

8. The flue gas duct joint support and sealing structure as described in claim 1, characterized in that, The corresponding grooves of the floor slabs on both sides (1) are chiseled out to support the supporting plate (33) and the reinforcing bar (4); the thickness of the groove is not less than the diameter of the reinforcing bar (4); the length of the supporting bar (4) is not less than 10cm.

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