Improved bearing structure for residential exhaust passage
Through the design of metal connectors and support members, the problem of sealing and blockage of the exhaust duct support structure is solved, and the accurate butt and sealing of the exhaust duct is achieved, which is convenient to install and does not occupy internal space.
Patent Information
- Application Number
- CN202422410935.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-08
- Publication Date
- 2025-08-29
- Estimated Expiration
- 2034-10-08
AI Technical Summary
The support structure of the existing residential exhaust duct is prone to damage the sealing properties, resulting in flue gas leakage, and steel bars and angle steel are prone to intercept construction waste and cause blockage.
Metal connectors and metal support members are used to connect to the exhaust passage through the connecting grooves, and the support section of the metal support members is used to support the floor slab or wall to achieve accurate docking and sealing of the exhaust passage, while not occupying the internal space of the exhaust passage.
It realizes effective support of the exhaust duct, maintains good sealing, avoids smoke leakage and blockage problems, is convenient to install and does not affect the exhaust function.
Smart Images

Figure CN223281628U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of residential exhaust ducts, in particular to an improved supporting structure for residential exhaust ducts. Background Art
[0002] Existing residential exhaust ducts are formed by connecting several prefabricated exhaust pipes. These pipes are typically made of cement and are generally rectangular tubes. Each prefabricated exhaust pipe is typically the same height as the floor, with the upper and lower sections connected at the floor level. Typically, this connection involves applying a layer of polymer mortar to the upper end of the exhaust pipe, aligning the lower end of another section of exhaust pipe, and installing it on top. The polymer mortar seals the joints between the exhaust pipes. However, this approach presents the problem of leaky joints.
[0003] In high-rise buildings, the upper and lower connections of prefabricated exhaust ducts on each floor can easily cause the prefabricated exhaust ducts located on the ground floor of the building to be overloaded, which can easily cause product damage or even collapse. Therefore, supporting structures are generally provided on all or part of the floors to support the prefabricated exhaust ducts on the upper floors through the walls of the floors (including the wall body, the ring beams, structural beams and reserved openings in the floor slabs connected to the wall body), so as to achieve distributed support of the residential exhaust duct load.
[0004] The current support method relies on floor steel bars and angle steel that penetrate the interior of the exhaust duct. This method compromises the duct's overall sealing structure, resulting in gaps in the duct joints. These gaps, particularly in internal corners, are difficult to repair, allowing smoke inside the duct to leak outward. Furthermore, the steel bars and angle steel that penetrate the duct easily trap construction debris, causing blockage and hindering smoke emission. Utility Model Content
[0005] In order to at least partially solve the deficiencies in the prior art, the main purpose of the present invention is to provide an improved supporting structure that does not affect the internal space of a residential exhaust duct, and has the advantages of good supporting effect and easy installation.
[0006] In order to achieve the above-mentioned main purpose, the utility model discloses an improved supporting structure for a residential exhaust duct, wherein the residential exhaust duct includes two exhaust ducts, which are an upper exhaust duct and a lower exhaust duct respectively, and the upper exhaust duct and the lower exhaust duct are butted up and down at a reserved hole in the floor slab of a floor; the improved supporting structure includes a metal connector and a metal supporting member assembled on the metal connector, the metal connector is prefabricated to the top end of the lower exhaust duct, and is provided with a connecting groove with a top opening and a side opening, the metal supporting member can be pulled through the side opening and extended into the connecting groove and has a supporting section located outside the connecting groove; wherein, when the lower exhaust duct is installed in place, the supporting section is supported on the reserved hole in the floor slab or inserted into the wall to support the lower exhaust duct, and the bottom end of the upper exhaust duct extends into the connecting groove through the top opening and is aligned and connected with the lower exhaust duct.
[0007] According to a specific embodiment of the present invention, the metal supporting member passes through the connecting groove in the horizontal direction and has two protruding supporting sections, and the two supporting sections are respectively supported on the reserved holes in the floor and / or inserted into the wall.
[0008] Furthermore, the metal supporting member has a supporting section located in the connecting groove, and when the upper exhaust duct is installed in place, the bottom end of the upper exhaust duct is located above the supporting section.
[0009] Furthermore, the bottom end of the upper exhaust duct is provided with a plug-in component corresponding to the metal connector, and the plug-in component is provided with a plug-in protrusion protruding downward, and the plug-in protrusion extends downward into the connecting groove through the top opening.
[0010] Optionally, when the upper exhaust duct is installed in place, the plug-in protrusion and the supporting section located in the connecting groove abut against each other to provide support for the upper exhaust duct through the metal supporting member.
[0011] Optionally, the plug-in component has a bottom plate that is in contact with the bottom end surface of the upper exhaust duct; when the upper exhaust duct is installed in place, there is a gap between the plug-in protrusion and the support section located in the connecting groove, so that the bottom plate is supported on the top end surface of the metal connector.
[0012] According to a specific embodiment of the present invention, it also includes a supporting connector, which is pre-installed on a reserved hole in the floor or on a wall; wherein the supporting connector is provided with an installation hole for installation and a supporting hole for supporting, and the supporting section passes through the supporting hole and is supported by the supporting connector.
[0013] Furthermore, the supporting hole is located below the mounting hole.
[0014] According to a specific embodiment of the present invention, the metal supporting member is in the shape of a rod or a plate.
[0015] The present invention has the following beneficial effects: it provides an improved support structure that connects the exhaust duct to a reserved opening in a floor slab or a building wall through a metal connector and a metal support member that cooperate with each other, thereby effectively supporting the lower exhaust duct, making the installation position of the lower exhaust duct more accurate and conducive to maintaining a good butt seal, while also facilitating the installation of the upper exhaust duct. Furthermore, the metal support member of the present invention is disposed within the connection groove of the metal connector, thereby not occupying the internal space of the exhaust duct and not adversely affecting the exhaust flow of the exhaust duct.
[0016] In order to more clearly illustrate the purpose, technical solutions and advantages of the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is the first installation diagram of the supporting structure of the utility model;
[0018] Figure 2 This is the second installation diagram of the supporting structure of the utility model;
[0019] Figure 3 It is a cross-sectional view of the supporting structure of the utility model;
[0020] Figure 4 This is an installation diagram showing the supporting connector in the supporting structure of the present invention;
[0021] Figure 5 It is a three-dimensional diagram of the supporting connector. DETAILED DESCRIPTION
[0022] In order to more clearly understand the above-mentioned objectives, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.
[0023] In the following description, many specific details are explained in combination with the embodiments to facilitate a full understanding of the present invention. However, it should be understood that the following embodiments and detailed descriptions are only for illustrative purposes and do not limit the scope of protection of the present invention.
[0024] like Figure 3 As shown, the residential exhaust duct includes two exhaust ducts, namely an upper exhaust duct 1 and a lower exhaust duct 2. The upper exhaust duct 1 and the lower exhaust duct 2 are connected vertically at a reserved hole A in the floor slab. The residential exhaust duct in the embodiment can include more exhaust ducts. The specific structure is described here using two exhaust ducts as an example. It is understandable that more exhaust ducts can be directly expanded.
[0025] like Figure 1-3 As shown, the improved support structure includes a metal connector 3 and a metal support member 4. The metal connector 3 is prefabricated at the top of the lower exhaust duct 2 and is provided with a connecting groove 5 having a top opening and side openings. The metal support member 4 can be moved through the side openings and into the connecting groove 5. Specifically, the metal support member 4 is rod-shaped, such as a steel bar or rebar. In other embodiments, the metal support member 4 can also be plate-shaped, such as a steel plate. Preferably, a certain gap is provided between the metal support member 4 and the side openings to facilitate the movement of the metal support member 4.
[0026] In this embodiment, the metal support member 4 has a support section 401 located outside the connection groove 5. When the lower exhaust duct 2 is installed, the support section 401 is supported on the reserved hole A in the floor slab or inserted into the wall B to support the lower exhaust duct 2. The bottom end of the upper exhaust duct 1 extends through the top opening into the connection groove 5 and is aligned and connected with the lower exhaust duct 2. The connection groove 5 is preferably filled with sealing mortar 6 to form a better seal at the joint.
[0027] Furthermore, the metal supporting member 4 passes through the connecting groove 5 in the horizontal direction and has two protruding supporting sections 401. The two supporting sections 401 are respectively supported on the reserved opening A of the floor slab and / or inserted into the wall B. Figure 3 The metal supporting member 4 has a supporting section 402 located in the connecting groove 5. When the upper exhaust duct 1 is installed in place, the bottom end of the upper exhaust duct 1 is located above the supporting section 402. Figure 4 As shown, the bottom end of the upper exhaust duct 1 is provided with a mating member 7 corresponding to the metal connector 3. The mating member 7 has a downwardly protruding insertion protrusion 701, which extends downward through the top opening into the connecting groove 5. The mating member 7 has a bottom plate 702 that fits against the bottom end surface of the upper exhaust duct 1. When the upper exhaust duct 1 is installed, a gap exists between the insertion protrusion 701 and the support section 402 located in the connecting groove 5, allowing the bottom plate 702 to be supported on the top surface of the metal connector 3.
[0028] In some embodiments, when the upper exhaust duct 1 is installed in place, the insertion protrusion 701 can also directly abut against the support section 402 located in the connecting groove 5, so that the upper exhaust duct 1 can be supported by the metal supporting member 4.
[0029] In other embodiments, the number of metal supporting members 4 may be two, and the two metal supporting members 4 are not connected and each provides a supporting segment 401. The outward protrusion length of the supporting segment 401 is preferably greater than 40 mm, such as 50 mm, 60 mm, etc.
[0030] In the above installation process, when installing against a wall, it is necessary to pre-drill holes in the wall B, and the drilling positions need to be determined in advance. To simplify the installation, as an extension of the above embodiment, Figure 4-5 As shown, the supporting structure also includes a supporting connector 8, which is pre-installed on the reserved hole A of the floor or the wall B to cooperate with and support the supporting section 401 of the metal supporting member 4. The supporting connector 8 is provided with a mounting hole 801 for installation and a supporting hole 802 for support. The supporting connector 8 is fixed and installed, for example, by an expansion bolt passing through the mounting hole 801. For example, the number of the mounting holes 801 is multiple, for example Figure 5 Three are shown.
[0031] Specifically, support hole 802 is located below, preferably directly below, mounting hole 801. During installation, support segment 401 passes through support hole 802 and is supported by support connector 8, thereby supporting and securing the exhaust duct via metal support member 4 and metal connector 3. Preferably, support hole 802 is an elongated hole in the height direction to facilitate passage of support segment 401.
[0032] Although the present invention has been described above through embodiments, the above embodiments are only used to exemplarily describe the feasible implementation methods of the present invention, and are not used to limit the scope of protection of the present invention. Any equivalent substitutions or changes made by those skilled in the art in accordance with the present invention should also be covered by the scope of protection defined by the claims of the present invention.
Claims
1. An improved supporting structure for a residential exhaust duct, wherein the residential exhaust duct comprises two exhaust ducts, an upper exhaust duct and a lower exhaust duct, wherein the upper exhaust duct and the lower exhaust duct are butted up and down at a reserved opening in the floor slab; characterized in that: The improved supporting structure includes a metal connector and a metal supporting member assembled on the metal connector, the metal connector is prefabricated on the top end of the lower exhaust duct, and is provided with a connecting groove with a top opening and a side opening, the metal supporting member can be pulled through the side opening and extended into the connecting groove and has a supporting section located outside the connecting groove; wherein, when the lower exhaust duct is installed in place, the supporting section is supported on the reserved hole in the floor or inserted into the wall to support the lower exhaust duct, and the bottom end of the upper exhaust duct extends into the connecting groove through the top opening and is aligned with the lower exhaust duct and connected.
2. The improved supporting structure for residential exhaust duct according to claim 1, characterized in that: In the horizontal direction, the metal supporting member passes through the connecting groove and has two protruding supporting sections. The two supporting sections are respectively supported on the reserved holes in the floor slab and / or inserted into the wall.
3. The improved supporting structure for residential exhaust duct according to claim 2, characterized in that: The metal supporting component has a supporting section located in the connecting groove, and when the upper exhaust duct is installed in place, the bottom end of the upper exhaust duct is located above the supporting section.
4. The improved supporting structure for residential exhaust duct according to claim 3, characterized in that: The bottom end of the upper exhaust duct is provided with a plug-in component corresponding to the metal connector. The plug-in component is provided with a plug-in protrusion protruding downward. The plug-in protrusion extends downward into the connecting groove through the top opening.
5. The improved supporting structure for residential exhaust duct according to claim 4, characterized in that: When the upper exhaust duct is installed in place, the plug-in protrusion and the supporting section located in the connecting groove abut against each other to provide support for the upper exhaust duct through the metal supporting member.
6. The improved supporting structure for residential exhaust duct according to claim 4, characterized in that: The plug-in component has a bottom plate that is in contact with the bottom end surface of the upper exhaust duct; when the upper exhaust duct is installed in place, there is a gap between the plug-in protrusion and the support section located in the connecting groove, so that the bottom plate is supported on the top end surface of the metal connecting piece.
7. The improved supporting structure for residential exhaust duct according to claim 1, characterized in that: It also includes a supporting connector, which is pre-installed on a reserved hole in the floor or on a wall; wherein the supporting connector is provided with an installation hole for installation and a supporting hole for supporting, and the supporting section passes through the supporting hole and is supported by the supporting connector.
8. The improved supporting structure for residential exhaust duct according to claim 7, characterized in that: The supporting hole is located below the mounting hole.
9. The improved supporting structure for residential exhaust duct according to claim 1, characterized in that: The metal supporting member is in the shape of a rod or a plate.