Building smoke exhaust pipeline connection node structure

Abstract

The utility model discloses a building smoke exhaust pipeline connection node structure which comprises a floor slab, a socket sleeve, an upper layer smoke exhaust pipeline and a lower layer smoke exhaust pipeline, a smoke exhaust pipeline via hole is preset in the floor slab, and the socket sleeve is arranged in the smoke exhaust pipeline via hole and supported on the floor slab. The socket sleeve is provided with an upper sleeve part higher than the top surface of the floor slab and a lower sleeve part lower than the bottom surface of the floor slab, the upper-layer smoke exhaust pipeline is hermetically and internally sleeved on the upper sleeve part and is supported at the bottom of the upper sleeve part, and the lower sleeve part is hermetically and internally sleeved on the lower-layer smoke exhaust pipeline; by the adoption of the structure, stable alignment installation of the upper-layer smoke exhaust pipeline and the lower-layer smoke exhaust pipeline can be facilitated, oil stain leakage at the butt joint position is reduced, and construction efficiency is improved to a certain degree.

Description

Technical Field

[0001] The utility model belongs to the technical field of building construction, and particularly relates to a connection node structure of a building smoke exhaust pipe. Background Art

[0002] At present, the construction of indoor flues in buildings usually involves reserving holes for smoke exhaust pipes to pass through on the floor slabs between upper and lower floors, then directly docking and assembling prefabricated multi-section smoke exhaust pipes, and finally completing the sealing treatment of the holes and splicing parts. However, due to the easy misalignment of the upper and lower layer smoke exhaust pipes during the construction process, it is very difficult to ensure the dense embedding of polymer mortar at the joints. As the service time increases, the oil stains in the pipes will seep into the outer wall of the lower layer smoke exhaust pipe, and it is extremely difficult to repair. Therefore, it is urgent to improve the structure at the connection node of the existing building smoke exhaust pipe in order to facilitate the stable alignment installation of the upper and lower layer smoke exhaust pipes, reduce the oil stain leakage at the docking place, and improve the construction efficiency to a certain extent. Content of the Utility Model

[0003] In view of this, the purpose of the utility model is to provide a connection node structure of a building smoke exhaust pipe, which can facilitate the stable alignment of the upper and lower layer smoke exhaust pipes, reduce the oil stain leakage at the docking place, and improve the construction efficiency to a certain extent by adopting this structure.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A connection node structure of a building smoke exhaust pipe, including a floor slab, a socket sleeve, an upper layer smoke exhaust pipe and a lower layer smoke exhaust pipe. The floor slab is pre-provided with a smoke exhaust pipe through-hole, the socket sleeve is arranged in the smoke exhaust pipe through-hole and supported on the floor slab. The socket sleeve has an upper sleeve part protruding above the top surface of the floor slab and a lower sleeve part below the bottom surface of the floor slab. The upper layer smoke exhaust pipe is hermetically sleeved inside the upper sleeve part and supported at the bottom of the upper sleeve part, and the lower sleeve part is hermetically sleeved inside the lower layer smoke exhaust pipe.

[0005] Further, a supporting plate is fixedly connected to the part of the top surface of the floor slab corresponding to the smoke exhaust pipe through-hole. The supporting plate is used to support the socket sleeve and complete the limit of the socket sleeve on the horizontal plane.

[0006] Further, the supporting plate is an integrally formed annular plate, and the inner hole of the annular plate is conformally arranged with the socket sleeve.

[0007] Further, a lower groove is provided on the top surface of the floor slab. The supporting plate is fixed in the lower groove, and an active adjustment space relative to the side wall of the lower groove is provided in the circumferential direction of the supporting plate.

[0008] Further, a sealing layer is filled in the circumferential gap of the socket sleeve corresponding to the smoke exhaust pipe through-hole.

[0009] Further, the sealing layer is polymer mortar.

[0010] Further, a grouting hole leading to the sealing layer is provided at the bottom of the lower groove, and an avoidance opening is provided on the supporting plate corresponding to the grouting hole.

[0011] Further, the supporting plate is fixedly connected to the floor slab through fasteners.

[0012] Further, the supporting plate is a steel plate.

[0013] The beneficial effects of the present utility model are as follows:

[0014] In the connection node structure of the building smoke exhaust duct provided by the present utility model, by providing a socket sleeve and sealing the upper smoke exhaust duct inside the upper sleeve part, the bottom surface of the upper smoke exhaust duct is lower than the top surface of the socket sleeve, so that the oil stains at the socket joint of the upper smoke exhaust duct and the socket sleeve will not seep out; similarly, by sealing the lower sleeve part inside the lower smoke exhaust duct, the bottom surface of the socket sleeve is lower than the top surface of the lower smoke exhaust duct, so that the oil stains at the socket joint of the lower smoke exhaust duct and the socket sleeve will not seep out, effectively reducing the oil stain leakage at the docking place; at the same time, since the upper sleeve part of the socket sleeve is higher than the top surface of the floor slab and the lower sleeve part is lower than the bottom surface of the floor slab, it is beneficial to the visual installation of the upper smoke exhaust duct and the lower smoke exhaust duct, and can effectively reduce the misalignment of the upper smoke exhaust duct and the lower smoke exhaust duct during the assembly process, improving the construction efficiency to a certain extent; of course, it is also better conducive to stable alignment installation, improving the sealing performance of the socket part of the upper smoke exhaust duct and the lower smoke exhaust duct, and the good sealing effect is also beneficial to reducing oil stain leakage.

[0015] Other advantages, objectives and features of the present utility model will be described to some extent in the subsequent description, and to some extent, will be obvious to those skilled in the art based on the study of the following text, or can be taught from the practice of the present utility model. The objectives and other advantages of the present utility model can be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a cross-sectional schematic diagram of the present utility model

[0017] Figure 2 It is an axonometric structure schematic diagram of the present utility model

[0018] Figure 3 It is an exploded structure schematic diagram of the present utility model

[0019] Reference numerals: 1 - floor slab; 101 - smoke exhaust duct through hole; 102 - lower groove; 102a - grouting hole; 2 - socket sleeve; 201 - upper sleeve part; 202 - lower sleeve part; 3 - upper smoke exhaust duct; 4 - lower smoke exhaust duct; 5 - supporting plate; 501 - avoidance opening; 6 - sealing layer; 7 - fasteners. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] Next, in combination with the accompanying drawings in the embodiments of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0021] Please refer to Figures 1-3 , this embodiment discloses a connection node structure of a building smoke exhaust duct, including a floor slab 1, a socket sleeve 2, an upper smoke exhaust duct 3 and a lower smoke exhaust duct 4. The floor slab 1 is provided with a smoke exhaust duct through hole 101. The socket sleeve 2 is arranged in the smoke exhaust duct through hole 101 and supported on the floor slab 1. The socket sleeve 2 has an upper sleeve part 201 that is higher than the top surface of the floor slab 1 and a lower sleeve part 202 that is lower than the bottom surface of the floor slab 1. The upper smoke exhaust duct 3 is hermetically sleeved inside the upper sleeve part 201 and supported on the bottom of the upper sleeve part 201. The lower sleeve part 202 is hermetically sleeved inside the lower smoke exhaust duct 4. It can be understood that the hermetic sleeve here can usually be sealed at the mating part by means of sealant, foaming agent or mortar mixture, etc. The upper smoke exhaust duct 3 and the lower smoke exhaust duct 4 can be concrete-cast structures, mostly rectangular structures, and are generally installed at the corner of the wall, which will not be elaborated here;

[0022] In the above connection node structure of the building smoke exhaust duct, by setting the socket sleeve 2 and hermetically sleeving the upper smoke exhaust duct 3 inside the upper sleeve part 201, the bottom surface of the upper smoke exhaust duct 3 is lower than the top surface of the socket sleeve 2, so that the oil stains at the socket joint part of the upper smoke exhaust duct 3 and the socket sleeve 2 will not seep out; similarly, by hermetically sleeving the lower sleeve part 202 inside the lower smoke exhaust duct 4, the bottom surface of the socket sleeve 2 is lower than the top surface of the lower smoke exhaust duct 3, so that the oil stains at the socket joint part of the lower smoke exhaust duct 4 and the socket sleeve 2 will not seep out, effectively reducing the oil stain leakage at the butt joint; at the same time, since the upper sleeve part 201 of the socket sleeve 2 is higher than the top surface of the floor slab and the lower sleeve part 202 is lower than the bottom surface of the floor slab, this is conducive to the visual installation of the upper smoke exhaust duct 3 and the lower smoke exhaust duct 4, and can effectively reduce the misalignment of the upper smoke exhaust duct 4 and the lower smoke exhaust duct 2 during the assembly process, improving the construction efficiency to a certain extent; of course, it can also be better conducive to stable alignment installation, conducive to improving the sealing performance of the socket part of the upper smoke exhaust duct 3 and the lower smoke exhaust duct 4. Good sealing effect is also conducive to reducing oil stain leakage; in addition, the socket sleeve 2 can play a good supporting role for the upper smoke exhaust duct 3, with good reliability; in addition, the requirement for the vertical dimension accuracy can be reduced, and the deviation in height can be compensated by the socket part.

[0023] In this embodiment, a supporting plate 5 is fixedly connected to the top surface of the floor slab 1 corresponding to the smoke exhaust pipe through-hole 101. The supporting plate 5 is used to support the socket 2 and complete the limit of the socket 2 on the horizontal plane, that is, to prevent the displacement of the socket 2 in the horizontal plane. Specifically, the bottom surface of the sleeve part 201 of the socket 2 here is supported on the supporting plate 5. Generally, for the convenience of installation, the size of the smoke exhaust pipe through-hole 101 is generally larger than the size of the smoke exhaust pipe, and sufficient clearance needs to be reserved to ensure the convenience of installation. Therefore, by adding the supporting plate 5, after the socket 2 is aligned with the lower-layer smoke exhaust pipe 4, the supporting plate 5 is fixed to the floor slab 1, such as by bolts. This can effectively avoid the displacement of the socket 2 when installing the upper-layer exhaust pipe 3, which is beneficial to further improve the installation efficiency, improve the construction safety. At the same time, it can increase the supporting area and improve the bearing capacity of the upper-layer exhaust pipe 3.

[0024] In this embodiment, the supporting plate 5 is an integrally formed annular plate, and the inner hole of the annular plate is conformally arranged with the socket 2; it has a simple structure, is convenient to install, has reliable support, can be used as a template for subsequent construction, is beneficial to the waterproof construction of the subsequent floor slab surface, and is beneficial to further improve the construction efficiency.

[0025] In this embodiment, a lower groove 102 is provided on the top surface of the floor slab 1. The supporting plate 5 is fixed in the lower groove 102, and an adjustable space relative to the side wall of the lower groove 102 is provided in the circumferential direction of the supporting plate 5. By designing the lower groove 102, it is beneficial to ensure that the supporting plate 5 is not higher than the surface of the floor slab 1 after installation, ensure the aesthetics, and is beneficial to the subsequent leveling construction. Setting the adjustable space can facilitate the alignment position adjustment of the socket 2 and the lower-layer smoke exhaust pipe 4.

[0026] In this embodiment, a sealing layer 6 is filled in the circumferential gap of the socket 2 corresponding to the smoke exhaust pipe through-hole 101. Here, the circumferential gap is the reserved assembly gap. By setting the sealing layer 6, it is beneficial to the waterproof of the ground and reduces the water leakage of the kitchen floor.

[0027] In this embodiment, the sealing layer 6 is polymer mortar, which is cheap in material and has a good sealing effect. The foaming agent can be combined to strengthen the sealing.

[0028] In this embodiment, a grouting hole 102a leading to the sealing layer 6 is provided at the bottom of the lower groove 102. Specifically, here it is a sloping opening. A relief opening 501 is provided on the supporting plate 5 corresponding to the grouting hole 102a, which can avoid the position of the grouting hole 102a; during construction, formwork can be supported on the bottom surface of the floor slab, and a relatively closed space can be formed by borrowing the supporting plate 5; then, it is pressurized and grouted through the grouting hole 102a, which is convenient for construction, and the formed sealing layer is dense and reliable, and has a good sealing effect.

[0029] In this embodiment, the supporting plate 5 is fixedly connected to the floor slab 1 through a fastener 7. Specifically, here it is a screw, which has reliable connection and is convenient for installation.

[0030] In this embodiment, the supporting plate 5 is a steel plate with good structural strength.

[0031] The above-mentioned smoke exhaust duct can be constructed according to the following steps. After installing the lower-layer smoke exhaust duct 4, place the supporting plate 5 in the lower groove 102 of the floor slab 1, then install and position the socket 2, then fix the supporting plate 5, and then install the upper-layer smoke exhaust duct 3; then formwork and grout through the grouting hole 102a to complete the construction of the sealing layer, and finally finish the plastering and leveling of the bottom surface of the floor slab.

[0032] Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A building smoke exhaust pipe connection node structure, characterized in that: The invention comprises a floor (1), a socket sleeve (2), an upper smoke exhaust pipe (3) and a lower smoke exhaust pipe (4); the floor (1) is provided with a smoke exhaust pipe through hole (101); the socket sleeve (2) is arranged in the smoke exhaust pipe through hole (101) and supported on the floor (1); the socket sleeve (2) has an upper sleeve portion (201) higher than the top surface of the floor (1) and a lower sleeve portion (202) lower than the bottom surface of the floor (1); the upper smoke exhaust pipe (3) is sealedly sheathed in the upper sleeve portion (201) and supported on the bottom of the upper sleeve portion (201); and the lower sleeve portion (202) is sealedly sheathed in the lower smoke exhaust pipe (4).

2. The building smoke exhaust pipe connection node structure according to claim 1, characterized in that: A support plate (5) is fixedly connected to a portion of the top surface of the floor slab (1) corresponding to the smoke exhaust pipe through hole (101), and the support plate (5) is used to support the socket sleeve (2) and complete the positioning of the socket sleeve (2) on a horizontal plane.

3. The building smoke exhaust pipe connection node structure according to claim 2, characterized in that: The supporting plate (5) is an integrally formed annular plate, and the inner hole of the annular plate is configured to conform to the socket sleeve (2).

4. The building smoke exhaust pipe connection node structure according to claim 3, characterized in that: The top surface of the floor slab (1) is provided with a lower groove (102), the supporting plate (5) is fixed to the lower groove (102), and a movable adjustment space relative to the side wall of the lower groove (102) is provided in the circumferential direction of the supporting plate (5).

5. The building smoke exhaust pipe connection node structure according to claim 4, characterized in that: The circumferential gap between the socket sleeve (2) and the smoke exhaust pipe through hole (101) is filled with a sealing layer (6).

6. The building smoke exhaust pipe connection node structure according to claim 5, characterized in that: The sealing layer (6) is polymer mortar.

7. The building smoke exhaust pipe connection node structure according to claim 5, characterized in that: The bottom of the lower groove (102) is provided with a grouting hole (102a) leading to the sealing layer (6), and a avoidance opening (501) is provided on the support plate (5) at a position corresponding to the grouting hole (102a).

8. The building smoke exhaust pipe connection node structure according to claim 2, characterized in that: The supporting plate (5) is fixedly connected to the floor slab (1) via a fastener (7).

9. The building smoke exhaust duct connection node structure according to claim 2, characterized in that: The supporting plate (5) is a steel plate.

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