CN110848981A

CN110848981A - Smoke outlet sealing structure of gas water heater

Info

Publication number: CN110848981A
Application number: CN201911061102.3A
Authority: CN
Inventors: 史衍龙; 穆生鸿; 王修东; 邓飞忠; 仇明贵; 潘叶江
Original assignee: Vatti Co Ltd
Current assignee: Vatti Co Ltd
Priority date: 2019-11-01
Filing date: 2019-11-01
Publication date: 2020-02-28

Abstract

The invention discloses an exhaust port sealing structure of a gas water heater, which comprises a shell, a fan, an exhaust pipe, a sealing gasket and a pressing plate, wherein the fan is arranged in the shell, an exhaust port is arranged on the shell, one end of the exhaust pipe is connected with an outlet of the fan, the other end of the exhaust pipe extends out of the exhaust port, the outer edge of the exhaust port and the shell are sunken from inside to outside to form a groove, the sealing gasket is sleeved outside the exhaust pipe and embedded in the groove, and the pressing plate is sleeved outside the exhaust pipe and fixes the sealing gasket in the groove.

Description

Smoke outlet sealing structure of gas water heater

Technical Field

The invention relates to the technical field of kitchen electricity, in particular to a smoke outlet sealing structure of a gas water heater.

Background

In the prior art, the sealing structure of the smoke outlet of the gas water heater is simple, but the sealing gasket is likely to loosen after the sealing gasket is aged, and the axial sealing strength of the smoke outlet is reduced at the moment. In addition, the sealing gasket may be displaced left and right due to looseness, so that the sealing performance of the gas water heater is reduced, and the performance of the whole machine is affected.

Disclosure of Invention

The invention aims to solve at least one of the problems in the prior related art to a certain extent, and therefore, the invention aims to provide a smoke outlet sealing structure of a gas water heater, which has a simple structure and stable and reliable sealing performance.

The above purpose is realized by the following technical scheme:

the utility model provides a gas heater's exhaust port seal structure, includes shell, fan, the pipe of discharging fume, sealed pad and clamp plate, the fan set up in the shell the inside be provided with the exhaust port on the shell, discharge fume pipe one end with the exit linkage of fan, the other end warp the exhaust port is past to stretch out the exhaust port outer fringe the shell is by interior toward outer sunken formation recess, sealed pad cover is located outside the pipe of discharging fume and inlay and locate in the recess, the clamp plate cover is located outside the pipe of discharging fume and will sealed pad is fixed in the recess.

In some embodiments, the groove is arcuate in cross-section.

In some embodiments, the cross section of the sealing gasket is arc-shaped, and the shape of the sealing gasket is matched with the shape of the groove.

In some embodiments, the pressure plate is welded to the inner wall of the housing.

In some embodiments, the inner ring of the gasket has a diameter less than the outer diameter of the smoke evacuation tube.

In some embodiments, the gasket is an interference fit with the smoke vent.

In some embodiments, the smoke outlet is arranged on the top of the housing, a step portion is arranged on the top of the inner ring of the sealing gasket, a flanging extending downwards is arranged on the top of the groove, and the flanging is pressed on the step portion.

In some embodiments, a ring-shaped protrusion is disposed on the outer wall of the smoke exhaust pipe extending out of the smoke exhaust port, and the protrusion abuts against the top of the groove.

Compared with the prior art, the invention at least comprises the following beneficial effects:

1. the smoke outlet sealing structure of the gas water heater has the advantages of simple structure and stable and reliable sealing performance.

Drawings

FIG. 1 is a schematic perspective view of a gas water heater in an embodiment of the present invention;

FIG. 2 is an exploded schematic view of a gas water heater in an embodiment of the present invention;

FIG. 3 is a schematic cross-sectional view of a gas water heater in an embodiment of the present invention;

fig. 4 is a partially enlarged view of a portion a in fig. 3.

Detailed Description

The present invention is illustrated by the following examples, but the present invention is not limited to these examples. Modifications to the embodiments of the invention or equivalent substitutions of parts of technical features without departing from the spirit of the invention are intended to be covered by the scope of the claims of the invention.

The first embodiment is as follows: as shown in fig. 1, fig. 2, fig. 3 and fig. 4, this embodiment provides a smoke vent sealing structure of gas water heater, including shell 1, fan 2, smoke vent 3, sealed pad 4 and clamp plate 5, fan 2 sets up in shell 1 the inside, be provided with exhaust port 100 on shell 1, the exit linkage of 3 one ends of smoke vent and fan 2, the other end stretches out through exhaust port 100 toward outside, at exhaust port 100 outer fringe, shell 1 forms recess 101 by interior toward outer sunken, sealed pad 4 cover is located outside smoke vent 3 and is inlayed and locate in recess 101, clamp plate 5 cover is located outside smoke vent 3 and is fixed in recess 101 with sealed pad 4.

The smoke outlet sealing structure of the gas water heater has the advantages of simple structure and stable and reliable sealing performance.

Specifically, sealed 4 covers of filling up locate to discharge fume 3 outside and inlay and locate in recess 101, 5 covers of clamp plate locate to discharge fume 3 outside and will fill up 4 and be fixed in recess 101, not only have the axial seal that is on a parallel with the 100 central lines of exhaust port from this, the radial seal of perpendicular to the central axis in addition, sealing performance is higher, clamp plate 5 can play limiting displacement to sealed 4 moreover, prevents that it from producing the skew because of external factors.

In this embodiment, the cross-section of the groove 101 is arc-shaped. Preferably, the cross section of the gasket 4 is arc-shaped, and the shape of the gasket 4 is adapted to the shape of the groove 101. Therefore, the position of the sealing gasket 4 can be better limited, and the sealing strength reduction caused by the fact that the sealing gasket 4 is loosened axially or radially easily is avoided.

Preferably, the pressing plate 5 is welded with the inner wall of the shell 1, the welding mode is simple and rapid, the pressing plate 5 can be firmly connected with the shell 1 in the welding mode, and the situation that the pressing plate 5 is loosened is avoided, so that the sealing strength is reduced due to the fact that the sealing gasket 4 is loosened axially or radially.

In this embodiment, the diameter of the inner ring of the sealing gasket 4 is smaller than the outer diameter of the smoke exhaust pipe 3, so that a tight interference fit can be formed between the sealing gasket 4 and the smoke exhaust pipe 3, and the sealing performance between the sealing gasket 4 and the smoke exhaust pipe 3 is improved. Meanwhile, the sealing strength reduction caused by the fact that the sealing gasket 4 is loosened axially or radially easily can be avoided.

More preferably, the sealing gasket 4 is in interference fit with the smoke exhaust 100, and the sealing gasket is reasonable and ingenious in design and is beneficial to improving the sealing performance between the sealing gasket 4 and the smoke exhaust 100. Meanwhile, the sealing strength reduction caused by the fact that the sealing gasket 4 is loosened axially or radially easily can be avoided.

In this embodiment, exhaust port 100 sets up on the top of shell 1, is provided with step portion 400 at the inner circle top of sealed 4, is provided with turn-ups 102 down extending on the top of recess 101, and turn-ups 102 compresses tightly on step portion 400, and its simple structure, reasonable in design, ingenious do benefit to the efficiency of promoting sealed 4 location, assembly, do benefit to the leakproofness between promotion sealed 4 and exhaust port 100 simultaneously.

Preferably, the outer wall of the part, extending out of the smoke exhaust port 100, of the smoke exhaust pipe 3 is provided with an annular bulge 300, the bulge 300 abuts against the top of the groove 101, and the smoke exhaust pipe is simple in structure, reasonable and ingenious in design, beneficial to improving the positioning and assembling efficiency between the smoke exhaust pipe 3 and the shell 1, and beneficial to improving the sealing performance between the sealing gasket 4 and the smoke exhaust port 100.

What has been described above are merely some embodiments of the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the inventive concept thereof, and these changes and modifications can be made without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a gas heater's exhaust port seal structure, includes shell (1), fan (2), discharges fume tub (3), sealed pad (4) and clamp plate (5), fan (2) set up in shell (1) the inside be provided with exhaust port (100) on shell (1), discharge fume tub (3) one end with the exit linkage of fan (2), the other end warp exhaust port (100) are toward stretching out outward, its characterized in that exhaust port (100) outer fringe shell (1) is by interior toward outer sunken recess (101) that forms, sealed pad (4) cover is located discharge fume tub (3) outer and inlay and locate in recess (101), clamp plate (5) cover is located discharge fume tub (3) outer and will sealed pad (4) are fixed in recess (101).

2. The exhaust port sealing structure of the gas water heater according to claim 1, wherein the cross section of the groove (101) is arc-shaped.

3. The smoke outlet sealing structure of the gas water heater is characterized in that the cross section of the sealing gasket (4) is arc-shaped, and the shape of the sealing gasket (4) is matched with the shape of the groove (101).

4. The exhaust port sealing structure of a gas water heater according to claim 1, 2 or 3, wherein the pressure plate (5) is welded with the inner wall of the housing (1).

5. The exhaust port sealing structure of the gas water heater according to the claim 1, 2 or 3, characterized in that the diameter of the inner ring of the sealing gasket (4) is smaller than the outer diameter of the exhaust pipe (3).

6. The exhaust port sealing structure of the gas water heater according to claim 5, wherein the sealing gasket (4) is in interference fit with the exhaust port (100).

7. The exhaust port sealing structure of the gas water heater according to claim 1, 2 or 3, wherein the exhaust port (100) is arranged on the top of the housing (1), a step part (400) is arranged on the top of the inner ring of the sealing gasket (4), a flange (102) extending downwards is arranged on the top of the groove (101), and the flange (102) is pressed on the step part (400).

8. The smoke outlet sealing structure of the gas water heater as claimed in claim 7, wherein an annular protrusion (300) is provided on the outer wall of the part of the smoke outlet (3) extending out of the smoke outlet (100), and the protrusion (300) abuts against the top of the groove (101).