CN205425400U - Down draught device is prevented completely to flap formula - Google Patents
Down draught device is prevented completely to flap formula Download PDFInfo
- Publication number
- CN205425400U CN205425400U CN201620275543.9U CN201620275543U CN205425400U CN 205425400 U CN205425400 U CN 205425400U CN 201620275543 U CN201620275543 U CN 201620275543U CN 205425400 U CN205425400 U CN 205425400U
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- CN
- China
- Prior art keywords
- air intake
- intake cylinder
- stack shell
- tray rack
- storm
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a down draught device is prevented completely to flap formula, including stack shell, an air inlet section of thick bamboo, two prevent wind the lid, two wear round pin and palette frame, the one end and the air inlet section of thick bamboo sealing connection of stack shell, the one end of an air inlet section of thick bamboo is used for connecting gas heater's the pipe of discharging fume, the other end of an air inlet section of thick bamboo is connected with palette frame, wears the round pin and places palette frame in rotationally in, two prevent wind the lid to connect in two to wear to sell correspondingly, two prevent wind to cover and can hide totally in the other end of an air inlet section of thick bamboo. The utility model discloses simple structure, the leakproofness is good, can prevent outdoor cold air to flow backward back the gas heater inner chamber completely.
Description
Technical field
This utility model relates to gas heater field, particularly to a kind of device preventing outdoor cold air from pouring in down a chimney from smoke exhaust pipe.
Background technology
Forced fume exhaust pipe is passed through by the harmful exhaust emissions of burning generation to outdoor when gas heater normally works.But, when gas heater quits work, outdoor cold gas can pour in down a chimney back the inner chamber of gas heater along smoke exhaust pipe, but the water inlet pipe and water outlet pipe of gas heater inner chamber the most all can retain a part of water yield, especially in the region that temperature is on the low side, the water freezing that cold gas because pouring in down a chimney retains in making water inlet pipe and water outlet pipe, thus cause inlet and outlet pipe lines to rupture.
Utility model content
The purpose of this utility model is to provide for a kind of complete backward-wind preventing device of foldable type, effectively stops outdoor cold gas to pour in down a chimney back gas heater inner chamber, thus the water freezing retained in avoiding water inlet pipe and water outlet pipe and the danger that causes water inlet pipe and water outlet pipe to rupture.
According to an aspect of the present utility model, provide a kind of complete backward-wind preventing device of foldable type, including stack shell, air intake cylinder, two storm shutters, two wear pin and tray rack, one end of stack shell is tightly connected with air intake cylinder, one end of air intake cylinder is for connecting the smoke exhaust pipe of gas heater, and the other end of air intake cylinder connects tray rack, wears pin and is built in tray rack rotationally, two storm shutters are connected correspondingly to two and wear pin, and two storm shutters can be completely covered by the other end of air intake cylinder.
When gas heater normally works by smoke exhaust pipe forced discharge waste gas, waste gas enters from air intake cylinder, owing to two storm shutters can carry out foldable type open, so that waste gas is from stack shell discharge chamber by wearing pin；When gas heater quits work; when outdoor cold gas pours in down a chimney from stack shell; pour in down a chimney under cold air pressure and two storm shutter Gravitative Loads in outdoor; two storm shutters are completely covered by air intake cylinder; in addition the protection of tray rack and Anti-air-leakage effect; cold air can be stoped completely to enter in water heater complete machine, to reach the purpose protecting Water heater pipeline freezing.
In some embodiments, the centrage at air intake cylinder place overlaps with the centrage at stack shell place, and air intake jacket casing is provided with plug, and air intake cylinder is connected with plug interference fit or hermetically sealed welding, the outer rim of plug and stack shell spot welding, riveting or hermetically sealed weld.Thus, by spot welding, riveting or the Joining Technology of hermetically sealed welding, overcome traditional spot welding Joining Technology, make stack shell seal without revealing.
In some embodiments, the inwall of the outer wall of air intake cylinder, the end face of plug and stack shell forms annular groove, storm shutter semicircular in shape, and the circular outer edge of two storm shutter compositions extends to annular groove.Thus, from the condensed water of storm shutter landing when collecting gas water heater working by annular groove, and when gas heater quits work, storm shutter self is the most frozen, normally-open during to ensure task under gas heater.
In some embodiments, storm shutter, to wear pin, tray rack parallel with the end face of air intake cylinder, and the both sides of tray rack are welded with the inwall of air intake cylinder.Thus, two storm shutters, to wear pin turning cover air intake cylinder, make storm shutter rotation fall process and cover air outlet with free falling body state, in being completely covered by state.
This utility model simple in construction, good airproof performance, it is possible to stop outdoor cold gas to pour in down a chimney back gas heater inner chamber completely.
Accompanying drawing explanation
Fig. 1 is the structural representation of the complete backward-wind preventing device of foldable type of this utility model one embodiment.
Detailed description of the invention
Below in conjunction with the accompanying drawings and this utility model is described in further detail by embodiment.
As shown in Figure 1, the complete backward-wind preventing device of this foldable type includes stack shell 1, air intake cylinder 2, storm shutter 3, wears pin 4 and tray rack 5, wherein air intake cylinder 2 connects the smoke exhaust pipe of gas heater, the centrage at air intake cylinder 2 place overlaps with the centrage at stack shell 1 place, and one end of air intake cylinder 2 is for connecting the smoke exhaust pipe of gas heater.
Air intake cylinder 2 is arranged with plug 6, and air intake cylinder 2 is connected or hermetically sealed welding with plug 6 interference fit, it is preferable that connect for interference fit.The outer rim of plug 6 and stack shell 1 spot welding, riveting or hermetically sealed weld, it is preferable that for hermetically sealed welding.
Above-mentioned whole device uses the processing of stack shell 1 integrally stretching, plug 6 to fix with air intake cylinder 2 interference fit and the outer rim of plug 6 connects into entirety with the hermetically sealed technique being welded and fixed of stack shell 1, give up traditional spot welding Joining Technology, made the stack shell 1 of whole device seal No leakage.Each parts of whole device all use stainless steel material, produce corrosion during to prevent gas heater harmful exhaust from passing through, durable in use.
Two equal semicirculars in shape of storm shutter 3, the circular outer edge that two storm shutters 3 are combined into matches with the other end of air intake cylinder 2, i.e. the other end of air intake cylinder 2 can be completely covered by by 2 semicircular storm shutters 3 combinations.The both sides of tray rack 5 are welded with the inwall of air intake cylinder 2, tray rack 5 is along the built-in pin-and-hole of diametric(al) 9 of air intake cylinder 2, wearing pin 4 for two and insert pin-and-hole 9 along same straight line, two storm shutters 3 weld two accordingly and wear pin 4, and storm shutter 3, to wear pin 4, tray rack 5 parallel with the end face of air intake cylinder 2.
Gap 8 in stack shell 1 makes cold air or the waste gas through stack shell 1 can be unblocked.The inwall of the outer wall of air intake cylinder 2, the end face of plug 6 and stack shell 1 forms the circular outer edge of 7,2 semicircle storm shutter 3 compositions of annular groove and extends to annular groove 7.From the condensed water of storm shutter 3 landing when collecting gas water heater working by annular groove 7, and when gas heater quits work, storm shutter 3 self is the most frozen, normally-open during to ensure task under gas heater.
Two storm shutters 3 rotate composition dome covering air intake cylinder 2 to wear pin 4 so that storm shutter 3 rotation falls process and covers air outlet with free falling body state, in being completely covered by state.When gas heater normally works by smoke exhaust pipe forced discharge waste gas, waste gas enters from air intake cylinder 2, owing to each storm shutter 3 drives two semicircular storm shutters 3 to be backed down by foldable type under gas pressure by the corresponding rotation wearing pin 4, thus waste gas passes the gap 8 of stack shell 1 from stack shell 1 discharge chamber；When gas heater quits work; when outdoor cold gas pours in down a chimney from stack shell 1; pour in down a chimney under cold air pressure and 2 semicircular storm shutter 3 Gravitative Loads in outdoor; 2 semicircular storm shutters 3 form complete dome; in addition the Anti-air-leakage of tray rack and protective effect; cold air is stoped to enter in gas heater complete machine completely, to reach the purpose protecting Water heater pipeline freezing, thus the water freezing retained in avoiding water inlet pipe and water outlet pipe and the danger that causes water inlet pipe and water outlet pipe to rupture.
Above-described is only embodiments more of the present utility model.For the person of ordinary skill of the art, on the premise of creating design without departing from this utility model, it is also possible to making some deformation and improvement, these broadly fall into protection domain of the present utility model.
Claims (4)
1. the complete backward-wind preventing device of foldable type, it is characterized in that, including stack shell (1), air intake cylinder (2), two storm shutters (3), two wear pin (4) and tray rack (5), one end of described stack shell (1) is tightly connected with described air intake cylinder (2), one end of described air intake cylinder (2) is for connecting the smoke exhaust pipe of gas heater, the other end of described air intake cylinder (2) connects tray rack (5), described pin (4) of wearing is built in tray rack (5) rotationally, storm shutter described in two (3) is connected correspondingly to two and wears pin (4), storm shutter described in two (3) can be completely covered by the other end of air intake cylinder (2).
The complete backward-wind preventing device of foldable type the most according to claim 1, it is characterized in that, the described centrage at air intake cylinder (2) place overlaps with the centrage at described stack shell (1) place, described air intake cylinder (2) is arranged with plug (6), described air intake cylinder (2) is connected or hermetically sealed welding with described plug (6) interference fit, the outer rim of described plug (6) and described stack shell (1) spot welding, riveting or hermetically sealed weld.
The complete backward-wind preventing device of foldable type the most according to claim 2, it is characterized in that, the inwall of the outer wall of described air intake cylinder (2), the end face of described plug (6) and described stack shell (1) forms annular groove (7), described storm shutter (3) semicircular in shape, the circular outer edge that storm shutter described in two (3) forms extends to annular groove (7).
4. according to the complete backward-wind preventing device of the foldable type described in claim 1 or 3, it is characterized in that, described storm shutter (3), to wear pin (4), tray rack (5) parallel with the end face of described air intake cylinder (2), and the both sides of described tray rack (5) are welded with the inwall of described air intake cylinder (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620275543.9U CN205425400U (en) | 2016-04-01 | 2016-04-01 | Down draught device is prevented completely to flap formula |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620275543.9U CN205425400U (en) | 2016-04-01 | 2016-04-01 | Down draught device is prevented completely to flap formula |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205425400U true CN205425400U (en) | 2016-08-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620275543.9U Expired - Fee Related CN205425400U (en) | 2016-04-01 | 2016-04-01 | Down draught device is prevented completely to flap formula |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205425400U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112212506A (en) * | 2020-09-29 | 2021-01-12 | 芜湖美的厨卫电器制造有限公司 | Pipe assembly and heating apparatus |
-
2016
- 2016-04-01 CN CN201620275543.9U patent/CN205425400U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112212506A (en) * | 2020-09-29 | 2021-01-12 | 芜湖美的厨卫电器制造有限公司 | Pipe assembly and heating apparatus |
| CN112212506B (en) * | 2020-09-29 | 2023-04-14 | 芜湖美的厨卫电器制造有限公司 | Pipe assembly and heating apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170418 Address after: Thirteen 528300 in Guangdong province Foshan city Shunde District Ronggui Kau Kau fine fine neighborhood No. 73 Patentee after: FOSHAN HANDAO METAL PRODUCTS CO.,LTD. Address before: 528000 Guangdong province Foshan city Shunde District Ronggui Street No. 1 Shang Lixuan Feng Yu Lu 3 No. 702 (good city) Patentee before: Zhao Rong |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160803 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |