Smoke and air duct bell and spigot connecting device

Abstract

The utility model discloses a bell and spigot connecting device for flue gas ducts. The bell and spigot connecting device comprises a first flue gas duct, the second flue gas duct is arranged at the top of the first flue gas duct; the connecting mechanism is arranged in the first flue gas duct, the connecting mechanism is used for enabling the second flue gas duct and the first flue gas duct to be connected in a socket and spigot joint mode, the first flue gas duct and the second flue gas duct are tightly connected, the connecting mechanism comprises a connecting part, and the connecting part is attached to the inner wall of the first flue gas duct; and the positioning part is positioned on the side part of the connecting part. According to the utility model, the steel wire mesh lining, the tin soldering layer and the iron sheet belt are mutually matched, the steel wire mesh lining is integrally poured in the first smoke and air duct by adopting a mold, and the iron sheet belt is inserted into the second smoke and air duct, so that smoke cannot directly flow along a joint, and the joint tightness can be ensured by adopting the socket-and-spigot connection mode; the joint plugging measures are reduced, the installation precision is improved, the process is easy and convenient to construct, and the joint plugging procedure can be omitted.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of smoke and air duct connection, especially to a smoke and air duct socket joint device. BACKGROUND

[0002] The residential smoke and air duct usually refers to the vertical duct product for discharging kitchen smoke or toilet exhaust, also called as exhaust duct, ventilation duct or residential exhaust duct, and is the main component of the exhaust duct system shared by the kitchen and toilet of the residence, mainly used for discharging exhaust gas and smoke.

[0003] The mechanism smoke and air duct in the prior art of residential building field has become a popular technology, and the smoke and air duct usually needs to be connected during installation, and the connection process of the prior art of the smoke and air duct is usually flat butt joint.

[0004] During the installation of the smoke and air duct, double steel bars are placed every two layers at the hole opening as the support of the smoke and air duct, and the smoke and air duct is placed on the steel bars, and then is installed layer by layer, but after the installation of the smoke and air duct, an 8-10mm joint gap is left between the adjacent smoke and air ducts, and thus the gap needs to be blocked to prevent the leakage of smoke.

[0005] The prior art usually blocks the installation gap with mortar first, and then pours the concrete at the structure hole of the smoke and air duct, but this way has the problem of complicated blocking operation steps, and because the smoke continuously flows at the joint gap, the smoke directly flows along the joint after long-term use, and thus the socket joint between the smoke and air ducts is necessary. UTILITY MODEL CONTENT

[0006] The utility model aims to provide a smoke and air duct socket joint device to solve the problems in the above background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a smoke and air duct socket joint device, comprising:

[0008] A first smoke and air duct;

[0009] A second smoke and air duct arranged at the top of the first smoke and air duct;

[0010] A connecting mechanism arranged in the first smoke and air duct, which is used for socket joint of the second smoke and air duct and the first smoke and air duct, and makes the first smoke and air duct and the second smoke and air duct connected closely.

[0011] Preferably, the connecting mechanism comprises:

[0012] A connecting part adhered to the inner wall of the first smoke and air duct;

[0013] The positioning part is located on the side of the connecting part;

[0014] The plug-in part is connected to the connecting part through the positioning part, and the plug-in part is used to make the second flue and the first flue plug and connect.

[0015] Preferably, the connecting part is integrally cast with the interior of the first flue, and the distance between the plug-in part and the inner wall of the first flue is 50mm.

[0016] Preferably, the connecting portion includes:

[0017] A wire mesh lining, wherein the wire mesh lining is provided with a casting surface adapted to the inner wall of the first flue;

[0018] The first welding part is located on the side of the wire mesh lining.

[0019] Preferably, the positioning part includes:

[0020] A solder layer, the solder layer being located on the side of the wire mesh lining;

[0021] A tin plate layer, which is soldered to the side of the first solder joint.

[0022] Preferably, the plug-in portion includes:

[0023] The iron belt has a second welding part at the bottom of its side, and the iron belt is welded to the solder layer through the second welding part. The width and thickness of the iron belt are 100mm and 1.2mm, respectively.

[0024] The socket is located at the top of the side of the iron belt and mates with the inner wall of the second flue.

[0025] The technical effects and advantages of this utility model are as follows:

[0026] This invention utilizes the interplay of a wire mesh lining, a solder layer, and a steel belt. The wire mesh lining is welded to the steel belt via the solder layer. The wire mesh lining is integrally cast into the interior of the first flue gas duct using a mold. The steel belt is interlocked with the second flue gas duct. This design prevents flue gas from flowing directly through the joints. Furthermore, the use of a socket connection ensures a tight seal at the interface, reducing the need for joint sealing measures and improving installation accuracy. This process is simple to construct and eliminates the need for joint sealing, effectively preventing flue gas leaks and avoiding secondary repairs during building handover. It has wide applicability. Attached Figure Description

[0027] Fig. 1 This is a front structural diagram of the present utility model.

[0028] Fig. 2 This is a front cross-sectional view of the present invention.

[0029] Fig. 3 This is a front cross-sectional view of the iron belt section of this utility model.

[0030] In the figure: 1. First flue gas duct; 2. Second flue gas duct; 3. Connecting mechanism; 31. Wire mesh lining; 311. First welding part; 312. Casting surface; 32. Solder layer; 321. Solder plate layer; 33. Insertion part; 331. Iron belt; 332. Socket part; 333. Second welding part. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] This utility model provides, for example Figs. 1-3 The shown is a flue gas duct socket connection device, comprising:

[0033] First smoke duct 1;

[0034] The second smoke duct 2 is located at the top of the first smoke duct 1;

[0035] The connecting mechanism 3 is located inside the first flue duct 1. The connecting mechanism 3 is used to connect the second flue duct 2 to the first flue duct 1 in a socket-type manner, so that the first flue duct 1 and the second flue duct 2 are tightly connected.

[0036] Specifically, the connecting mechanism 3 includes:

[0037] The connecting part is attached to the inner wall of the first flue duct 1;

[0038] The positioning part is located on the side of the connecting part;

[0039] The plug-in part 33 is connected to the connecting part through the positioning part. The plug-in part 33 is used to make the second flue duct 2 and the first flue duct 1 fit together. The plug-in part 33 is convenient to use as a plug-in part, which is conducive to the positioning and installation of the second flue duct 2. This process is simple to construct and can save the interface sealing process. The socket connection can ensure the interface is tight, reduce the joint sealing measures, and improve the installation accuracy.

[0040] It should be noted that the connecting part and the interior of the first flue gas duct 1 are integrally cast and molded. The connecting part is integrally cast with the first flue gas duct 1 using a mold. Thus, the first flue gas duct and the connecting part are integrally molded. According to the characteristics of flue gas flow, it generally flows upward. The flue gas cannot flow directly along the joint to increase the sealing performance. The distance between the plug part 33 and the inner wall of the first flue gas duct 1 is 50mm.

[0041] Specifically, the connecting part includes a wire mesh liner 31 and a first welding part 311. The wire mesh liner 31 is beneficial for supporting the iron belt 331 and increasing the safety of the joint between the first flue duct 1 and the second flue duct 2. The first welding part 311 is beneficial for welding the wire mesh liner 31. The wire mesh liner 31 is provided with a casting surface 312 that is adapted to the inner wall of the first flue duct 1, which is beneficial for the wire mesh liner 31 to be attached and fixed to the inner wall of the first flue duct 1, increasing the stability of the wire mesh liner 31 in use. The first welding part 311 is located on the side of the wire mesh liner 31.

[0042] Specifically, the positioning part includes a solder layer 32 and a tin plate layer 321. The solder layer 32 facilitates the connection and fixation of the iron belt 331 and the wire mesh lining 31 by soldering, and ensures the sealing. After welding, the tin plate layer 321 is formed. The solder layer 32 is located on the side of the wire mesh lining 31, and the tin plate layer 321 is welded to the side of the first welding part 311.

[0043] Specifically, the insertion part 33 includes a steel belt 331 and a socket part 332. The steel belt 331 is conducive to tightly fitting the inner wall of the second flue duct 2, and the second flue duct 2 is connected by a socket. According to the flue gas flow characteristics, the flue gas cannot flow directly along the joint. The bottom of the side of the steel belt 331 is provided with a second welding part 333, which is conducive to welding and fixing with the wire mesh lining 31. The steel belt 331 is welded to the solder layer 32 through the second welding part 333. The width and thickness of the steel belt 331 are 100mm and 1.2mm, respectively. The socket part 332 is located at the top of the side of the steel belt 331. The socket part 332 fits with the inner wall of the second flue duct 2. It is beneficial to take into account the precision error during the processing of the first flue duct 1. A socket gap is reserved on each side of the socket part 332 to avoid damage during the installation of the flue duct.

[0044] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A flue gas duct socket connection device, characterized in that, include: First flue (1); The second smoke duct (2) is located at the top of the first smoke duct (1); A connecting mechanism (3) is disposed inside the first smoke duct (1). The connecting mechanism (3) is used to connect the second smoke duct (2) to the first smoke duct (1) in a socket-type manner, so that the first smoke duct (1) and the second smoke duct (2) are tightly connected. The connecting mechanism (3) includes: The connecting part is attached to the inner wall of the first flue (1); The positioning part is located on the side of the connecting part; The plug-in part (33) is connected to the connecting part through the positioning part, and the plug-in part (33) is used to make the second smoke duct (2) and the first smoke duct (1) fit together.

2. The flue gas duct socket connection device according to claim 1, characterized in that, The connecting part and the interior of the first flue (1) are integrally cast and molded, and the distance between the plug part (33) and the inner wall of the first flue (1) is 50mm.

3. The flue gas duct socket connection device according to claim 1, characterized in that, The connecting part includes: A wire mesh lining (31) is provided with a casting surface (312) that is adapted to the inner wall of the first flue (1). The first welding part (311) is located on the side of the wire mesh lining (31).

4. The flue gas duct socket connection device according to claim 1, characterized in that, The positioning unit includes: Solder layer (32), said solder layer (32) is located on the side of the wire mesh lining (31); A tin plate layer (321) is soldered to the side of the first solder part (311).

5. The flue gas duct socket connection device according to claim 1, characterized in that, The plug-in portion (33) includes: The iron belt (331) has a second welding part (333) at the bottom of its side. The iron belt (331) is welded to the solder layer (32) through the second welding part (333). The width and thickness of the iron belt (331) are 100mm and 1.2mm, respectively. The socket (332) is located on the top of the side of the iron belt (331) and is fitted with the inner wall of the second flue (2).

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