Closed structure of kitchen discharge flue

Abstract

The utility model relates to the technical field of kitchen flue construction, and particularly discloses a kitchen discharge flue sealing structure which comprises a soft rubber strip A. Through holes are formed in the two sides of the interior of the soft rubber strip A. Steel wires are filled in the through holes. A groove body is formed in the middle of the soft rubber strip A. A soft rubber strip B is embedded in the groove body. The soft rubber strip A is embedded and matched with the kitchen exhaust flue opening after being wound, and the winding end of the soft rubber strip A is connected with a fastening bolt in a penetrating manner. According to the device, the soft rubber strip is used for manufacturing the sealing edge covering structure of the kitchen exhaust flue opening, the sealing edge covering structure is used for being subsequently and conveniently attached to the outer circumferential face of the flue check valve in a sealed mode, a gap between the flue check valve and the kitchen exhaust flue opening is filled, and the sealing performance of the kitchen exhaust flue and a kitchen is improved; the soft rubber strip can be cut according to the circumference of the kitchen exhaust flue opening, meanwhile, the steel wire is additionally arranged to improve the supporting performance, and therefore the size application range of the sealing edge covering structure is widened.

Description

Technical Field

[0001] This utility model relates to the field of kitchen exhaust duct construction technology, specifically to a sealed structure for a kitchen exhaust duct. Background Technology

[0002] Kitchen exhaust ducts are channels through which smoke from the kitchens of each household in high-rise buildings is transported. Users need to drill the kitchen exhaust duct opening themselves and install a backflow preventer to prevent smoke from flowing back. Since there is an installation gap between the kitchen exhaust duct opening and the outer circumference of the backflow preventer, it is usually sealed with filler. However, after a period of time, the filler cannot withstand the high temperature and voids appear, resulting in smoke leakage. Therefore, we propose a sealed structure for kitchen exhaust ducts. Utility Model Content

[0003] In view of the above-mentioned technical problems in related technologies, this utility model provides a sealed structure for kitchen exhaust ducts, which can solve the above problems.

[0004] To achieve the above-mentioned technical objectives, the technical solution of this utility model is implemented as follows:

[0005] A sealed structure for a kitchen exhaust duct includes a soft rubber strip A. Both sides of the soft rubber strip A have through holes filled with steel wire. A groove is formed in the middle of the soft rubber strip A, and a soft rubber strip B is embedded in the groove. The soft rubber strip A is wound up and fitted into the kitchen exhaust duct opening. A fastening bolt is connected through the wound end of the soft rubber strip A.

[0006] Furthermore, the groove of the soft rubber strip A includes a horizontal groove and a vertical groove, the vertical groove extending to the top surface of the soft rubber strip A, and the vertical cross-sectional shape of the soft rubber strip B is consistent with the vertical cross-sectional shape of the groove of the soft rubber strip A.

[0007] Furthermore, the soft rubber strip B includes horizontal strips and vertical strips. The thickness of the vertical strips is 2mm greater than the depth of the vertical groove, and the dimensions of the horizontal strips are consistent with the dimensions of the horizontal groove.

[0008] Furthermore, the winding ends of soft rubber strip A and soft rubber strip B are staggered.

[0009] Furthermore, the fastening bolts pass through soft rubber strip A and soft rubber strip B in sequence, and the ends of the fastening bolts are screwed with nuts.

[0010] The beneficial effects of this utility model are as follows: The device of this application uses a soft rubber strip to make a sealing edge structure for the kitchen exhaust duct opening. The sealing edge structure is used to facilitate subsequent sealing and fitting of the outer circumference of the flue backflow preventer valve, filling the gap between the flue backflow preventer valve and the kitchen exhaust duct opening, improving the sealing performance between the kitchen exhaust duct and the kitchen. The soft rubber strip can be cut according to the circumference of the kitchen exhaust duct opening, and steel wires are added to improve support, thereby increasing the size adaptability of the sealing edge structure. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] The present invention will now be described in further detail with reference to the accompanying drawings.

[0013] Figure 1 This is a structural diagram of a sealed kitchen exhaust duct.

[0014] Figure 2 This is an exploded view of soft rubber strip A and soft rubber strip B when unfolded.

[0015] Figure 3 This is a schematic diagram of the sealed structure of the kitchen exhaust duct installed in the kitchen exhaust duct.

[0016] Figure 4 This is a structural diagram of soft rubber strip A and soft rubber strip B when they are flattened and assembled.

[0017] In the picture:

[0018] 1. Soft rubber strip A; 101. Horizontal groove; 102. Vertical groove; 103. Through hole; 2. Soft rubber strip B; 201. Horizontal bar; 202. Vertical bar; 3. Steel wire; 4. Fastening bolt; 5. Kitchen exhaust duct; 6. Kitchen exhaust duct opening. Detailed Implementation

[0019] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.

[0020] like Figure 1-4 As shown, this utility model discloses a sealed structure for a kitchen exhaust duct, including a soft rubber strip A1. The soft rubber strip A1 has through holes 103 on both sides inside, and the through holes 103 are filled with steel wire 3. The soft rubber strip A1 has a groove in the middle, and a soft rubber strip B2 is embedded in the groove. After the soft rubber strip A1 is rolled up, it is fitted into the kitchen exhaust duct opening 6. The rolled end of the soft rubber strip A1 is connected to a fastening bolt 4.

[0021] Example 1: The kitchen exhaust duct 5 is drilled with an outlet 6 of similar size to the flue backflow preventer, based on site conditions. The soft rubber strips A1 and B2 are both made of fluororubber, which has high heat resistance and high elasticity, making it easy to fold into various shapes. Figure 1 As shown in the diagram, the lengths of soft rubber strips A1 and B2 are cut according to the circumference of the kitchen exhaust duct outlet 6. Then, soft rubber strip B2 is embedded into the horizontal groove 101 and vertical groove 102 in the middle of soft rubber strip A1. The soft rubber strip is bent into a circle. Soft rubber strip B2 is rotated so that the winding end of soft rubber strip B2 is offset from the winding end of soft rubber strip A1. Finally, fastening bolts 4 are screwed into both sides of the winding end of soft rubber strip A1. The fastening bolts 4 penetrate soft rubber strip A1 and soft rubber strip B2 in sequence. Washers and nuts are screwed into the ends of the fastening bolts 4 in sequence. At this time, soft rubber strips A1 and B2 form a whole circle. The vertical strip 202 of soft rubber strip B2 protrudes from the vertical groove 102. This design is used for a tight fit with the flue gas backflow preventer valve.

[0022] In the preferred technical solution, the groove of the soft rubber strip A1 includes a horizontal groove 101 and a vertical groove 102. The vertical groove 102 extends to the top surface of the soft rubber strip A1. The vertical cross-sectional shape of the soft rubber strip B2 is consistent with the vertical cross-sectional shape of the groove of the soft rubber strip A1. The soft rubber strip B2 includes a horizontal bar 201 and a vertical bar 202. The size of the horizontal bar 201 is consistent with the size of the horizontal groove 101. The soft rubber strip B2 not only serves as a filler for the soft rubber strip A1, but also works with the fastening bolt 4 to connect the soft rubber strip A1 to form a circular sealing structure. The thickness of the vertical bar 202 is 2mm greater than the depth of the vertical groove 102. This design is for subsequent tight fit with the outer circumferential surface of the flue gas check valve.

[0023] In the preferred technical solution, the winding ends of the soft rubber strip A1 and the soft rubber strip B2 are staggered, which facilitates the use of fastening bolts 4 to form a circular sealing structure with the soft rubber strip A1.

[0024] In the preferred technical solution, the fastening bolt 4 passes through the soft rubber strip A1 and the soft rubber strip B2 in sequence, and the end of the fastening bolt 4 is screwed into the washer and nut in sequence to fasten the winding end of the soft rubber strip A1.

[0025] In summary, the sealed structure of the kitchen exhaust duct 6 in this embodiment consists of soft rubber strips A1 and B2. The lengths of soft rubber strips A1 and B2 are cut according to the circumference of the kitchen exhaust duct 6. Then, soft rubber strip B2 is embedded into the horizontal groove 101 and vertical groove 102 in the middle of soft rubber strip A1. The soft rubber strip is bent into a circle. Finally, the soft rubber strip is fixed into a ring shape with bolts. The soft rubber strip is placed inside the kitchen exhaust duct 6 for fixation. Finally, the flue backflow preventer is installed in the inner ring of soft rubber strip B2. The vertical strip 202 of soft rubber strip B2 protrudes from the vertical groove 102. This design is used to fit tightly with the flue backflow preventer and improve the sealing of the kitchen exhaust duct 5 and the kitchen.

[0026] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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 kitchen exhaust air duct sealing structure characterized by comprising: Including soft rubber strip A (1), both sides of the soft rubber strip A (1) are provided with through holes (103) inside, the through holes (103) are filled with steel wires (3) inside, the soft rubber strip A (1) is provided with a groove inside, the groove is inlaid with a soft rubber strip B (2), the soft rubber strip A (1) is inlaid with a kitchen smoke flue (6) after winding, and the winding end of the soft rubber strip A (1) is penetrated with a fastening bolt (4).

2. A kitchen extractor duct closure construction according to claim 1, characterised in that, The groove of the soft rubber strip A (1) includes a horizontal groove (101) and a vertical groove (102), the vertical groove (102) extends to the top surface of the soft rubber strip A (1), and the vertical cross-sectional shape of the soft rubber strip B (2) is consistent with the vertical cross-sectional shape of the groove of the soft rubber strip A (1).

3. A kitchen extractor duct closure construction according to claim 2, wherein, The soft rubber strip B (2) includes a horizontal strip (201) and a vertical strip (202), the thickness of the vertical strip (202) is greater than the depth of the vertical groove (102) by 2mm, and the size of the horizontal strip (201) is consistent with the size of the horizontal groove (101).

4. A kitchen exhaust air duct closure structure according to claim 1, wherein The winding end of the soft rubber strip A (1) and the winding end of the soft rubber strip B (2) are staggered.

5. A kitchen exhaust air duct closure structure according to claim 1, wherein The fastening bolt (4) penetrates the soft rubber strip A (1) and the soft rubber strip B (2) in sequence, and the end of the fastening bolt (4) is provided with a nut.

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