Exhaust passage connecting structure with high sealing performance
By installing the bearing inserts and connectors on the building exhaust duct cylinder, combining the grouting grooves and slurry leakage holes, the problem of insufficient sealing and structural strength in the existing exhaust duct connection structure is solved, and high sealing and Durability and improve overall performance of the exhaust duct.
Patent Information
- Application Number
- CN202420869963.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-25
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-04-25
AI Technical Summary
The existing building exhaust duct connection structure has insufficient sealing and structural strength, resulting in smoke leakage and durability problems.
The bearing plug and connector structure are adopted. The bearing plug is installed at the port of the exhaust pipe body, and grouting grooves and slurry holes are set at the connection position to inject concrete to enhance sealing and structural strength.
It effectively avoids smoke leakage, improves the reliability of sealed connections and the durability of the exhaust duct, and significantly improves structural strength and stability.
Smart Images
Figure CN222183982U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of building exhaust ducts, and in particular relates to a high-seal exhaust duct connection structure. Background Art
[0002] Building exhaust ducts, also known as flues, are tubular devices for exhaust gas and smoke. For example, residential flues refer to vertical pipe products used to remove kitchen smoke or bathroom exhaust gas, also known as exhaust ducts, ventilation ducts, and residential exhaust ducts. Exhaust ducts are usually constructed by splicing multiple exhaust duct bodies in sequence. The exhaust duct body is usually a prefabricated concrete pipe with a rectangular cross-section. During construction, the exhaust duct bodies are stacked and spliced from bottom to top and sealed at the connection position, forming a flow channel for smoke to be discharged upwards, and the connection position is sealed to prevent smoke leakage.
[0003] The existing method of sealing the adjacent exhaust duct bodies is to hang a mesh sheet and set a mortar layer at the connection position of the exhaust duct, and to seal the connection position after hardening. This sealing structure has the following defects: first, due to the limited construction level and the material properties of the external mesh sheet and mortar layer, it cannot achieve a reliable sealing effect at the connection position. As time goes by, the external mesh sheet and mortar layer may fall off, causing smoke leakage; second, the aforementioned sealing connection structure does not help to enhance the structural strength of the exhaust duct.
[0004] In summary, it is necessary to develop and design a new exhaust duct connection structure to improve the reliability of the sealed connection to avoid smoke leakage, improve the durability of the exhaust duct, and at the same time improve the structural strength of the exhaust duct. Utility Model Content
[0005] The purpose of the utility model is to provide a high-sealing exhaust duct connection structure, improve the reliability of the sealed connection to avoid smoke leakage, improve the durability of the exhaust duct, and at the same time improve the structural strength of the exhaust duct.
[0006] The technical solution adopted by the utility model is: a high-sealing exhaust duct connection structure, including an exhaust duct body; a socket is installed on the upper port of the exhaust duct body, a connecting piece is provided between adjacent exhaust duct bodies and the connecting piece is located on the outside of the socket; the socket includes a lower body combined with the upper port of the exhaust duct body and an upper body exposed to the outside; the connecting piece includes a rectangular bottom plate with a window in the middle, the bottom plate is clamped between the ports of two adjacent exhaust duct bodies, vertical plates are provided on two adjacent sides of the bottom plate, outer plates with leakage holes are provided on the other two adjacent sides of the bottom plate, inner plates are respectively provided on the inner sides of the two outer plates, a grouting groove is formed between the outer plate and the inner plate and concrete is poured, mortar is provided in the space between the vertical plate and the upper body and between the inner plate and the upper body, and the lower end of the upper exhaust duct body is located in the mortar.
[0007] Preferably, horizontal folding edges are provided on the outer sides of the top edges of the two outer panels, and the horizontal folding edges are overlapped on the building floor slab outside the exhaust duct.
[0008] Preferably, the lower cylinder of the socket is in the shape of a straight cylinder, and the upper cylinder of the socket is in the shape of a quadrangular pyramid that gradually contracts upward.
[0009] Preferably, the lower body of the socket is fixedly connected to the inner wall of the upper port of the exhaust duct body by a fixing member, or the lower body of the socket is integrally cast in the upper port of the exhaust duct body.
[0010] Preferably, the outer side plate and the inner side plate have the same height, and the height of the vertical plate is greater than the heights of the outer side plate and the inner side plate.
[0011] Preferably, a plurality of connection holes are respectively provided on the two vertical plates, and the vertical plates are fixedly connected to the building wall outside the exhaust duct by using fixing members located in the connection holes.
[0012] The advantages and positive effects of the utility model are:
[0013] The utility model provides a high-sealing exhaust duct connection structure, which replaces the existing means of butt-connecting and sealing the exhaust duct barrel body. By arranging a socket on the upper port of the exhaust duct barrel body, when the ports of adjacent exhaust duct barrel bodies are butt-connected, the socket on the top of the exhaust duct barrel body of the next stage is inserted upward into the lower port of the exhaust duct barrel body of the previous stage, so that the butt gap between the adjacent exhaust duct barrel bodies is laterally blocked, which can effectively prevent the smoke inside the exhaust duct from leaking laterally through the butt gap.
[0014] The socket and the solidified mortar completely seal the potential channel that allows internal smoke to leak out, so the exhaust duct connection structure of the utility model is a highly sealed connection structure, which improves the reliability of the sealed connection to prevent smoke leakage. The method of sealing the connection position of the exhaust duct body with the socket, the connector and the mortar has good durability and will not fall off or crack during long-term use.
[0015] On the other hand, the exhaust duct connection structure of the utility model is provided with a socket, a connector and mortar, so that the overall structural strength of the exhaust duct can be improved. By clamping the bottom plate between the ports of two adjacent exhaust duct barrels, the connector is fixed. By providing a grouting groove and a grouting hole, the technical effect of pouring concrete into the grouting groove and the concrete leaking to the outside and combining with the external building structure is achieved. By combining with the external building structure, the structural strength and structural stability of the exhaust duct are significantly improved. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the external structure of the utility model;
[0017] Figure 2 yes Figure 1 Structural diagram of the middle bearing plug-in;
[0018] Figure 3 It is a schematic diagram of the cross-sectional structure of the utility model.
[0019] In the figure:
[0020] 1. Exhaust duct body; 2. Socket; 2-1. Lower cylinder; 2-2. Upper cylinder; 3. Connectors; 3-1. Bottom plate; 3-2. Vertical plate; 3-3. Outer plate; 3-4. Leakage hole; 3-5. Horizontal fold; 3-6. Inner plate; 3-7. Connecting hole; 4. Mortar; 5. Building floor; 6. Building wall; 7. Concrete. DETAILED DESCRIPTION
[0021] In order to further understand the content, features and effects of the present invention, the following embodiments are given to explain in detail.
[0022] See also Figure 1 , Figure 2 and Figure 3 The high-sealing exhaust duct connection structure of the utility model includes an exhaust duct body 1, a socket 2 is installed on the upper port of the exhaust duct body 1, and a connecting piece 3 is provided between adjacent exhaust duct bodies 1 and the connecting piece 3 is located on the outside of the socket 2.
[0023] The exhaust duct body 1 can be a prefabricated concrete pipe with an existing rectangular cross-section structure. The socket 2 is arranged on the upper port of the exhaust duct body 1 and is integrated with the exhaust duct body 1. When transferred and installed on site, the exhaust duct body 1 and the socket 2 are transferred and installed on site in an integrated manner. The connector 3 is an independent component, which is arranged between adjacent exhaust duct bodies 1 to play an auxiliary role in connection.
[0024] like Figure 1 As shown in , the socket 2 includes a lower body 2-1 combined with the upper port of the exhaust duct body 1 and an upper body 2-2 exposed to the outside. When the exhaust duct body 1 is installed step by step, the upper body 2-2 of the socket 2 of the next-stage exhaust duct body 1 is inserted upward into the lower port of the previous-stage exhaust duct body 1. Therefore, by providing the socket 2, the gap between the ports of adjacent exhaust duct bodies 1 can be closed to prevent internal smoke from leaking through the connecting gap.
[0025] In this embodiment, the lower cylinder 2-1 of the socket 2 is a straight cylinder shape, and the upper cylinder 2-2 of the socket 2 is a quadrangular pyramid shape that gradually shrinks upward. The lower cylinder 2-1 of the straight cylinder shape is easy to be combined with the upper port of the exhaust duct barrel 1, and the upper cylinder 2-2 of the quadrangular pyramid shape that gradually shrinks upward is easy to be inserted into the lower port of the upper exhaust duct barrel 1 for connection.
[0026] In this embodiment, the lower cylinder 2-1 of the socket 2 is fixedly connected to the inner wall of the upper port of the exhaust duct barrel 1 by a fixing member, or the lower cylinder 2-1 of the socket 2 is integrally cast and formed in the upper port of the exhaust duct barrel 1. In other words, the socket 2 and the exhaust duct barrel 1 can be combined in two specific ways, and the selection can be made according to the specific construction requirements. When the former method is adopted, the socket 2 and the exhaust duct barrel 1 are processed separately, and the two are fixedly connected by fixing members such as anchors before installation and construction (sealing pads, sealants, etc. should be set between the exhaust duct barrel 1 and the lower cylinder 2-1 to improve the sealing of the joint position). When the latter method is adopted, the socket 2 is pre-placed in the casting mold when the exhaust duct barrel 1 is produced, and then integrally cast and formed.
[0027] See also Figure 1 and Figure 3 , we can see that:
[0028] The connecting member 3 includes a rectangular bottom plate 3-1 with a window in the middle, vertical plates 3-2 are provided on two adjacent sides of the bottom plate 3-1, and outer plates 3-3 with leakage holes 3-4 are provided on the other two adjacent sides of the bottom plate 3-1. An inner plate 3-6 is provided on the inner side of each of the two outer plates 3-3, and a grouting groove is formed between the outer plate 3-3 and the inner plate 3-6 for pouring concrete 7. The concrete 7 poured into the grouting groove is leaked to the outside through the leakage holes 3-4 on the outer plate 3-3. After solidification, this part of concrete 7 is combined with the external building structure, which can significantly improve the structural strength and stability of the exhaust duct.
[0029] Mortar 4 is provided in the space between the vertical plate 3-2 and the upper cylinder 2-2 of the socket 2 and between the inner plate 3-6 and the upper cylinder 2 of the socket 2, and the lower end of the upper-level exhaust duct body 1 is located in the mortar 4 at this position. By arranging the mortar 4 in the aforementioned space, the lower end of the upper-level exhaust duct body 1, the socket 2 and the connecting piece 3 can be combined into a whole (referred to as the seating mortar process), and the mortar 4 in the aforementioned space can further close the potential leakage channel of the internal flue gas, further improving the sealing of the exhaust duct connection position. Therefore, this connection structure is a highly sealed connection structure, which effectively avoids smoke leakage and has good durability. It will not deteriorate structurally during long-term use, and can significantly improve the structural strength and structural stability of the exhaust duct.
[0030] On the other hand, it is conceivable that the two inner plates 3-6 of the connecting member 3 can also be eliminated, in which case the aforementioned grouting groove does not exist, and the mortar 4 can be poured into the space between the inner side of the outer plate 3-6 and the vertical plate 3-2 and the outer side of the upper cylinder 2-2, and then the upper-level exhaust duct body 1 is installed from above and the lower end of the exhaust duct body 1 is combined with the aforementioned mortar 4 (referred to as the seat mortar process). At the same time, the aforementioned mortar 4 can also leak outward from the leakage hole 3-4, and the leaked mortar 4 also has the effect of combining with the external building structure after solidification.
[0031] like Figure 1 As shown in , during installation, the bottom plate 3-1 of the connector 3 is clamped between the ports of two adjacent exhaust duct bodies 1. Therefore, after the connector 3 is sleeved on the outside of the socket 2 of the next-stage exhaust duct body 1 and the previous-stage exhaust duct body 1 is installed, the position of the connector 3 is limited.
[0032] In this embodiment, the heights of the outer side plate 3-3 and the inner side plate 3-6 are equal, and the height of the vertical plate 3-2 is greater than the heights of the outer side plate 3-3 and the inner side plate 3-6.
[0033] In this embodiment, a plurality of connection holes 3-7 are provided on each of the two vertical plates 3-2, and the vertical plates 3-2 are fixedly connected to the building wall 6 on the outside of the exhaust duct by means of fixing members located in the connection holes 3-7. In this way, by combining the connecting members 3 with the building wall 6, the structural strength and stability of the exhaust duct can be significantly improved.
[0034] In this embodiment, a horizontal folded edge 3-5 is provided on the outside of the top edge of the two outer panels 3-3, and the horizontal folded edge 3-5 is overlapped on the building floor 5 outside the exhaust duct, and the grouting groove is located between the end facade of the building floor 5 and the exhaust duct body 1.
[0035] Construction method:
[0036] First, the installation construction of the next-level exhaust duct body 1 is completed. At this time, the upper body 2-2 of the socket 2 is located in the flue installation hole reserved at the corner of the building floor 5. A connector 3 is arranged on the top of the exhaust duct body 1. The connector 3 falls into the aforementioned flue installation hole as a whole, and the two horizontal folded edges 3-5 of the connector 3 overlap the edge of the building floor 5; the two vertical plates 3-2 of the connector 3 are fixedly connected to the outer building wall 6 by a fixing member; mortar 4 is poured into the grouting groove, and the mortar 4 leaks to the outside through the leakage holes 3-4 on the outer plate 3-3. This part of the mortar 4 is located between the edge of the building floor 5 and the connector 3. After solidification, the connector 3 and the building floor 5 are combined into one.
[0037] Pour mortar 4 into the space between the vertical plate 3-2 and the upper cylinder 2-2 of the socket 2 and between the inner plate 3-6 and the upper cylinder 2 of the socket 2, and then stack the upper exhaust duct body 1 on the lower exhaust duct body 1. At this time, the upper cylinder 2-2 of the socket 2 is inserted into the lower port of the upper exhaust duct body 1. Figure 1 As shown in the figure, the lower end of the upper exhaust duct body 1 is embedded in the space between the vertical plate 3-2 and the upper cylinder 2-2, and between the inner plate 3-6 and the upper cylinder 2-2, and combined with the mortar 4 (referred to as the seating mortar process). After the mortar 4 in the aforementioned space solidifies, the exhaust duct body 1, the socket 2 and the connecting piece 3 are combined into one and the channel for smoke leakage is further closed.
Claims
1. A high-sealability exhaust duct connection structure, comprising an exhaust duct body (1); wherein: A socket (2) is installed on the upper port of the exhaust duct body (1); a connecting piece (3) is provided between adjacent exhaust duct bodies (1) and the connecting piece (3) is located outside the socket (2); the socket (2) comprises a lower body (2-1) coupled to the upper port of the exhaust duct body (1) and an upper body (2-2) exposed to the outside; the connecting piece (3) comprises a rectangular bottom plate (3-1) with a window in the middle; the bottom plate (3-1) is clamped between the ports of two adjacent exhaust duct bodies (1); vertical holes are provided on two adjacent sides of the bottom plate (3-1) The bottom plate (3-1) is provided with an outer plate (3-3) having a grouting hole (3-4) on the other two adjacent sides of the bottom plate (3-1), an inner plate (3-6) is provided on the inner side of each of the two outer plates (3-3), a grouting groove is formed between the outer plate (3-3) and the inner plate (3-6) and is poured with concrete (7), mortar (4) is provided in the space between the vertical plate (3-2) and the upper cylinder (2-2) and between the inner plate (3-6) and the upper cylinder (2-2), and the lower end of the upper exhaust duct body (1) is located in the mortar (4).
2. The high-seal exhaust duct connection structure according to claim 1, characterized in that: Horizontal folded edges (3-5) are provided on the outside of the top edges of the two outer panels (3-3), and the horizontal folded edges (3-5) are overlapped on the building floor (5) outside the exhaust duct.
3. The high-sealability exhaust duct connection structure according to claim 2, characterized in that: The lower cylinder (2-1) of the socket (2) is in the shape of a straight cylinder, and the upper cylinder (2-2) of the socket (2) is in the shape of a quadrangular pyramid that gradually contracts upwards.
4. The high-sealability exhaust duct connection structure according to claim 3, characterized in that: The lower barrel (2-1) of the socket (2) is fixedly connected to the inner wall of the upper port of the exhaust duct barrel (1) by means of a fixing member, or the lower barrel (2-1) of the socket (2) is integrally cast and formed in the upper port of the exhaust duct barrel (1).
5. The high-sealability exhaust duct connection structure according to claim 4, characterized in that: The heights of the outer side plate (3-3) and the inner side plate (3-6) are equal, and the height of the vertical plate (3-2) is greater than the heights of the outer side plate (3-3) and the inner side plate (3-6).
6. The high-seal exhaust duct connection structure according to claim 5, characterized in that: A plurality of connection holes (3-7) are respectively provided on the two vertical plates (3-2), and the vertical plates (3-2) are fixedly connected to the building wall (6) outside the exhaust duct by using fixing pieces located in the connection holes.