CN201972964U - Volute closing structure of induced draft fan - Google Patents
Volute closing structure of induced draft fan Download PDFInfo
- Publication number
- CN201972964U CN201972964U CN2011200347678U CN201120034767U CN201972964U CN 201972964 U CN201972964 U CN 201972964U CN 2011200347678 U CN2011200347678 U CN 2011200347678U CN 201120034767 U CN201120034767 U CN 201120034767U CN 201972964 U CN201972964 U CN 201972964U
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- China
- Prior art keywords
- spiral case
- cover plate
- volute
- fasteners
- fastener
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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 - Lifetime
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Abstract
The utility model discloses a volute closing structure of an induced draft fan, which comprises a volute (1) and a cover plate (2), wherein a cavity (4) is formed in the middle of the volute (1), an opening (5) is arranged at the bottom of the volute (1), the cover plate (2) is arranged at the bottom of the volute (1) to close the opening (5), a plurality of fasteners (21) are extended upwards from the cover plate (2), a plurality of grooves (11) corresponding to the fasteners (21) are arranged on the edge of the bottom end part of the volute (1), a boss (12) is arranged on the outer wall of the volute (1) in a protruding way, the fasteners (21) are embedded in the grooves (11), and the tops of the fasteners (21) are hooked on the boss (12). For the volute closing structure, the structure is simple, the assembling operation is simple, and the disassembling is convenient.
Description
Technical field:
The utility model relates to a kind of induced draught fan spiral case and closes and cover structure.
Background technique:
The fixing of traditional blower mainly is to fix by the mode of screw, welding, plastic packaging, and along with the raising of product manufacture level, gas combustion air conditioner MANUFACTURER is more and more paid attention to the reliability and the dismounting property of induced draught fan.
Summary of the invention:
The purpose of this utility model provides a kind of induced draught fan spiral case and closes and cover structure, its simple structure, and assembly manipulation is simple, convenient disassembly.
The purpose of this utility model is to be achieved by following technological scheme.
A kind of induced draught fan spiral case closes and covers structure, comprise spiral case and cover plate, form cavity in the middle of the spiral case, the bottom of spiral case is provided with opening, and cover plate is installed in spiral case bottom lock opening, and cover plate up stretches out several fasteners, the edge, bottom of spiral case is provided with some and the fastener corresponding groove, above groove, the spiral case outer wall is protruding with boss, fastener is nested in the groove the inside, the fastener top is hooked on the boss.
The quantity of above-mentioned described some fasteners is more than 2 or 2.
Above-mentioned described some fasteners evenly circumferentially are distributed in patch ends.
Above-mentionedly describedly between spiral case and cover plate, seal washer is installed.
The utility model beneficial effect compared with prior art is: 1) cover plate up stretches out several fasteners, the edge, bottom of spiral case is provided with some and the fastener corresponding groove, above groove, the spiral case outer wall is protruding with boss, fastener is nested in the groove the inside, and realization spiral case and cover plate are circumferentially located, and the fastener top is hooked on the boss, realize spiral case and cover plate axially locating, this simple structure, assembly manipulation is simple, convenient disassembly; 2) quantity of some fasteners is more than 2 or 2, evenly circumferentially is distributed in patch ends, and stressed even, it is fastening that spiral case and cover plate are fastened; 3) between spiral case and cover plate, seal washer is installed, makes spiral case loam cake and spiral case lower cover sealing effect better.
Description of drawings:
Fig. 1 is a stereogram of the present utility model;
Fig. 2 is an exploded view of the present utility model;
Fig. 3 is a sectional view of the present utility model;
Fig. 4 is the enlarged view of Fig. 3 A-A part.
Embodiment:
Also in conjunction with the accompanying drawings the utility model is described in further detail below by specific embodiment.
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, a kind of induced draught fan spiral case of the present utility model closes and covers structure, comprise spiral case 1 and cover plate 2, form cavity 4 in the middle of the spiral case 1, the bottom of spiral case 1 is provided with opening 5, cover plate 2 is installed in spiral case 1 bottom lock opening 5, cover plate 2 up stretches out several fasteners 21, the edge, bottom of spiral case 1 is provided with some and fastener 21 corresponding groove 11, above groove 11, spiral case 1 outer wall is protruding with boss 12, fastener 21 is nested in groove 11 the insides, and fastener 21 tops are hooked on the boss 12; The quantity of described some fasteners 21 is more than 2 or 2; Some fasteners 21 evenly circumferentially are distributed in cover plate 2 ends; Between spiral case 1 and cover plate 2, seal washer 3 is installed.
The utility model cover plate 2 up stretches out several fasteners 21, the edge, bottom of spiral case 1 is provided with some and fastener 21 corresponding groove 11, and above groove 11, spiral case 1 outer wall is protruding with boss 12, fastener 21 is nested in groove 11 the insides, fastener 21 tops are hooked on the boss 12, the quantity of some fasteners 21 is more than 2 or 2, evenly circumferentially is distributed in cover plate 2 ends, and is stressed even, make spiral case 1 and cover plate 2 fasten fastening, this simple structure, assembly manipulation is simple, convenient disassembly.
Claims (4)
1. an induced draught fan spiral case closes and covers structure, comprise spiral case (1) and cover plate (2), form cavity (4) in the middle of the spiral case (1), the bottom of spiral case (1) is provided with opening (5), cover plate (2) is installed in spiral case (1) bottom lock opening (5), it is characterized in that: cover plate (2) up stretches out several fasteners (21), the edge, bottom of spiral case (1) is provided with some and fastener (21) corresponding groove (11), top in groove (11), spiral case (1) outer wall is protruding with boss (12), fastener (21) is nested in groove (11) the inside, and fastener (21) top is hooked on the boss (12).
2. a kind of induced draught fan spiral case according to claim 1 closes and covers structure, it is characterized in that: the quantity of described some fasteners (21) is more than 2 or 2.
3. a kind of induced draught fan spiral case according to claim 1 and 2 closes and covers structure, it is characterized in that: some fasteners (21) evenly circumferentially are distributed in cover plate (2) end.
4. a kind of induced draught fan spiral case according to claim 1 and 2 closes and covers structure, it is characterized in that: between spiral case (1) and cover plate (2) seal washer (3) is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200347678U CN201972964U (en) | 2011-01-28 | 2011-01-28 | Volute closing structure of induced draft fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200347678U CN201972964U (en) | 2011-01-28 | 2011-01-28 | Volute closing structure of induced draft fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201972964U true CN201972964U (en) | 2011-09-14 |
Family
ID=44578067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200347678U Expired - Lifetime CN201972964U (en) | 2011-01-28 | 2011-01-28 | Volute closing structure of induced draft fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201972964U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104421207A (en) * | 2013-08-22 | 2015-03-18 | 珠海格力电器股份有限公司 | Volute component and ducted air conditioner |
| CN107796121A (en) * | 2017-11-23 | 2018-03-13 | 王子宝 | A kind of intelligent bathing device |
-
2011
- 2011-01-28 CN CN2011200347678U patent/CN201972964U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104421207A (en) * | 2013-08-22 | 2015-03-18 | 珠海格力电器股份有限公司 | Volute component and ducted air conditioner |
| CN107796121A (en) * | 2017-11-23 | 2018-03-13 | 王子宝 | A kind of intelligent bathing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110914 |