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An anti-windback structure for the top cylinder of the smoke collecting hood of a gas water heater

A technology for gas water heaters and smoke collection hoods, which is applied to fluid heaters, combustion methods, exhaust gas devices, etc. It can solve problems such as affecting appearance, bursting pipe fittings, scratches by staff, etc., and achieves the effect of avoiding scratch accidents

Active Publication Date: 2020-06-30
QINGDAO ECONOMIC & TECHN DEV ZONE HAIER WATER HEATER +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the improvement of living standards, gas water heaters have entered thousands of households. However, for the safety of use, the top tube of the existing gas water heater must be extended outdoors. There is a defect in the top tube that extends outdoors. The backflow from the top tube into the water heater will cause the accumulated water in the heat exchanger tube to freeze and burst the pipe fittings, which will bring too much trouble and maintenance costs to the water heater manufacturers and consumers. In order to avoid the above problems, the existing top tube Anti-wind structure inside
[0003] In the existing anti-wind structure, after the pin shaft is fixedly connected to the top tube, its two ends are exposed outside the top tube, which is easy to cause scratches to the staff during the installation process, and also affects the appearance

Method used

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  • An anti-windback structure for the top cylinder of the smoke collecting hood of a gas water heater
  • An anti-windback structure for the top cylinder of the smoke collecting hood of a gas water heater
  • An anti-windback structure for the top cylinder of the smoke collecting hood of a gas water heater

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Such as figure 2 As shown, the support frame 2 includes two fixing pieces 6 arranged vertically near the inner wall of the top cylinder 3, and the two fixing pieces 6 are arranged symmetrically with respect to the vertical diameter section of the top cylinder 3; the fixing piece 6 is provided with a supply pin shaft 1 socket 7 for plugging. Let the end of the pin shaft 1 pass through the socket 7 and place it in the gap between the fixing member 6 and the inner wall of the top cylinder 3 after the support frame 2 is inserted into the interior of the top cylinder 3 .

[0041] The socket 7 is a through hole with a circular cross section, and the pin shaft 1 is correspondingly columnar, and the pin shaft 1 is inserted into the socket 7 and is flexibly connected.

[0042] preferred, such as Figure 4 , 5 As shown, the socket 7 is provided with a flanging 8 formed by bending toward the inside of the top cylinder 3. The flanging 8 is a tapered surface that gradually shrin...

Embodiment 2

[0046] Such as figure 2 , 3 As shown, the upper end and / or lower end of the fixing member 6 is bent outward to form a positioning plate 13, and the inner wall of the top cylinder is provided with a corresponding groove 14. After the support frame 2 is inserted into the inside of the top cylinder 3, the positioning plate 13 Insert it into the groove 14 to limit insertion.

[0047] The above setting realizes the positioning connection between the support frame 2 and the top cylinder 3, and the staff can realize the complete fixed connection between the support frame 2 and the top cylinder 3 by spot welding the position. The gap between the inner walls of the tube 3 ensures the airtightness when closing the inner channel of the top tube 3 .

[0048] The groove 14 is an annular groove.

[0049] The above setting is convenient for adjusting the solder joints between the support frame 2 and the top tube 3 according to the requirement.

Embodiment 3

[0051] Such as figure 1 As shown, the first side of the fixing member 6 is provided with a radially protruding semicircular rotating part 9 corresponding to the socket 7, and the rotating baffle plate 11 rotates and moves along the outer circumference of the semicircular rotating part 9 , and sealed contact.

[0052] The above setting does not affect the rotation of the baffle plate 11 matching the inner passage of the top cylinder 3, and ensures the airtightness when closing the inner passage of the top cylinder 3.

[0053] The second sides of the two fixing parts 6 are connected through the support frame main body 5 , and the support frame main body 5 is fixedly connected with the inner wall of the top cylinder 3 .

[0054] The fixing part 6 may deform to the inside of the top tube 3 after long-term use. Once the fixing part 6 is deformed, it will affect the sensitivity of the pin shaft 1 rotation, thereby affecting the rotation of the baffle plate 11. The above-mentioned set...

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Abstract

The invention relates to an anti-downdraft structure of a gas water heater exhaust fume collecting hood top cylinder. The anti-downdraft structure of the gas water heater exhaust fume collecting hoodtop cylinder comprises a top cylinder and a baffle plate matched with an inner channel of the top cylinder. The baffle plate is fixed to the inner portion of the top cylinder by a pin shaft arranged on the baffle plate in a penetrating mode. The baffle plate can rotate around the pin shaft which is used as a rotating shaft to open or close the inner channel of the top cylinder. Two ends of the pinshaft are arranged inside the top cylinder and are correspondingly hinged to two sides of the top cylinder. According to the anti-downdraft structure of a gas water heater exhaust fume collecting hood top cylinder, a staff is avoided from being scratched during the installation, and at the same time, the appearance is more attractive.

Description

technical field [0001] The invention relates to the field of water heaters, in particular to an anti-downwind structure of a top cylinder of a smoke collecting hood of a gas water heater. Background technique [0002] With the improvement of living standards, gas water heaters have entered thousands of households. However, for the safety of use, the top tube of the existing gas water heater must be extended outdoors. There is a defect in the top tube that extends outdoors. The backflow from the top tube into the water heater will cause the accumulated water in the heat exchanger tube to freeze and burst the pipe fittings, which will bring too much trouble and maintenance costs to the water heater manufacturers and consumers. In order to avoid the above problems, the existing top tube There are anti-wind structures inside. [0003] In the existing anti-wind structure, after the pin shaft is fixedly connected to the top cylinder, its two ends are exposed outside the top cylin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F23J13/08F24H9/00
CPCF23J13/08F23J2213/50F24H9/00
Inventor 邱朝志李键汤以兴
Owner QINGDAO ECONOMIC & TECHN DEV ZONE HAIER WATER HEATER
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