CN203627321U - Centrifugal fan with plug-in type spiral case - Google Patents
Centrifugal fan with plug-in type spiral case Download PDFInfo
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- CN203627321U CN203627321U CN201320811721.1U CN201320811721U CN203627321U CN 203627321 U CN203627321 U CN 203627321U CN 201320811721 U CN201320811721 U CN 201320811721U CN 203627321 U CN203627321 U CN 203627321U
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- spiral case
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- snail
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Abstract
The utility model discloses a centrifugal fan with a plug-in type spiral case. The centrifugal fan comprises a body formed by two parallel side plates and a spiral case between the two side plates, and the spiral case and the two side plates are enclosed to form a wind channel. The spiral case is formed by a plurality of elongated spiral plates, and a plurality of positioning holes are uniformly arranged in the two side plates along the periphery of the wind channel. Each spiral plate passes through one positioning hole in one side plate, and is inserted in the corresponding positioning hole in the other side plate, and air-tight spiral case films are arranged on the circumferential wall of the spiral plates along the periphery of the wind channel. The spiral plates inserted in the two side plates form a skeleton structure of the spiral case, and the spiral case film covers the outer side of the spiral plate, so that the spiral plates and the two side plates form a wind channel. The spiral case is formed by spiral plates cooperating with spiral case films, and the spiral plates can be installed by directly inserting in the side plates. The spiral case films can be glued to the outside of the spiral plates. Compared with a conventional spiral case, the centrifugal fan is convenient for dismounting and is labor-saving and time-saving.
Description
Technical field
The utility model relates to a kind of centrifugal blower, especially a kind of centrifugal blower with plug-in type spiral case.
Background technique
Centrifugal blower is the mechanical energy that relies on input, improves supply gas the side by side machinery of body of gas pressure, and it is a kind of driven fluid machinery, and it is widely used in ventilation, the dust discharge and cooling of factory, mine, tunnel, cooling tower, vehicle, boats and ships and building; The ventilation of boiler and industrial furnace and air inducing; Cooling and ventilation in the apparatus of air conditioning and domestic electric appliance; The oven dry of cereal and selecting and recommending; Inflation and the propelling etc. of wind-tunnel wind regime and Hovercraft.
Tradition centrifugal blower mainly comprises fuselage and is installed on the wind wheel on fuselage by live axle, and its middle machine body is by two blocks of side plates that are parallel to each other and be positioned between biside plate and form with the spiral case that side plate forms wind passage, and wind wheel is positioned at this wind passage.When manufacturer production centrifugal blower, side plate and spiral case are all to adopt to be welded and fixed deadly, and such assembling mode is not only bad for the assembly and disassembly of fuselage, but also makes the quality of fuselage overweight, is unfavorable for carrying and transport.
Summary of the invention
In order to overcome the deficiencies in the prior art, it is a kind of simple in structure, reasonable in design that the utility model provides, easy disassembly, and reduced the centrifugal blower with plug-in type spiral case of own wt.
The utility model solves the technological scheme that its technical problem adopts: a kind of centrifugal blower with plug-in type spiral case, comprise fuselage, fuselage is made up of two blocks of side plates that are parallel to each other and the spiral case that is positioned between biside plate, spiral case and biside plate surround wind passage, described spiral case is made up of the snail plate of some long strips, all offers some positioning holes of arranging along wind passage periphery on biside plate; Each snail plate passes the wherein positioning hole of side plate, and is inserted in positioning hole corresponding on another side plate; On snail plate perisporium, also have along wind passage periphery and arrange and air-locked spiral case film.
For the ease of the dismounting of snail plate, each snail plate is parallel to each other, and on biside plate, the quantity of positioning hole is identical, and is symmetrically set.
On same side plate, distance between any two adjacent positioning holes has determined the distance of two adjacent snail plates, if between any two adjacent positioning holes apart from too far away, the suffered support meeting deficiency of spiral case film, in the time that wind wheel is worked, blast in wind passage can change according to the change of turnover tolerance and wind wheel working state, therefore, spiral case film can expand or shrink with the change of blast, can there is friction and collision with the snail plate for supporting in relative spiral case film, so not only can produce noise, and can make spiral case film be stretched, if things go on like this, will greatly affect spiral case film and be coated on the leakproofness on wind passage.Through studying discovery for a long period of time, for the spiral case film that adopts common pvc to support, the distance that same side plate is taken up an official post between meaning two adjacent positioning holes is 10～50mm.When spiral case film is installed, adopt S type ground to cover around snail plate, as, spiral case film is positioned at snail plate outside at first snail plate place, at second snail plate place around to snail plate inner side, at the 3rd snail plate place around to snail plate outside, at the 4th snail plate place around to snail plate inner side, the like.
Preferably be set to, the distance that same side plate is taken up an official post between meaning two adjacent positioning holes is 30mm.
In the time that snail plate is installed on biside plate, for the ease of assembling and the dismounting of snail plate, the snail plate positive stop hook that wherein an end is provided with on side plate, positioning hole periphery matches, the other end is provided with the pin-and-hole plugging for latch.On snail plate, the wherein positioning hole of side plate is passed in end, pin-and-hole place, and be inserted in positioning hole corresponding on another side plate, now ensure that pin-and-hole is positioned at the outside of side plate, by insert latch in pin-and-hole, thereby prevent the extraction of snail plate, and can prevent the positioning hole of snail plate through side plate away from the positive stop hook on snail plate, realize thus the installation of snail plate on biside plate.
The beneficial effects of the utility model are: insert biside plate by snail plate, now each snail plate has formed the skeletal structure of spiral case, the spiral case film that is covered in snail plate outside coordinates side plate, make to form wind passage between snail plate and biside plate, in the utility model, spiral case is cooperatively interacted and is formed by snail plate and spiral case film, and snail plate is directly slotting as side plate while installing, as long as and spiral case film sticks in snail plate outward, there is easy accessibility with respect to traditional spiral case, time saving and energy saving advantage.
Brief description of the drawings
Fig. 1 is the utility model embodiment's structural representation, has an X-rayed visible snail plate, spiral case film and wind passage.
Fig. 2 is the utility model embodiment's plan view.
Fig. 3 is the A portion enlarged view of Fig. 2.
Fig. 4 is the erection drawing of the utility model embodiment side plate and snail plate.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described:
As shown in Figure 1,2,3, 4, the present embodiment comprises fuselage 1, and fuselage 1 is made up of two blocks of side plates that are parallel to each other 11 and the spiral case 12 that is positioned between biside plate 11, and spiral case 12 and biside plate 11 surround wind passage 2.Spiral case 12 is made up of the snail plate 121 of some long strips, and each snail plate 121 is arranged in parallel; On biside plate 11, all offer some positioning holes 111 of arranging along wind passage 2 peripheries, on biside plate 11, positioning hole 111 quantity are identical, and be symmetrically set, on biside plate 11, have positioning hole 111 one to one, and the positioning hole 111 of two correspondences is for fixing same snail plate 121 use; Each snail plate 121 passes the wherein positioning hole 111 of side plate 11, and is inserted in positioning hole 111 corresponding on another side plate 11; On snail plate 121 perisporiums, also have along wind passage 2 peripheries and arrange and air-locked spiral case films 122.Meanwhile, for ensure spiral case film 122 install after wind passage 2 stable, on side plate 11, the distance of 111 of adjacent positioning holes of two-phase is 30mm arbitrarily.Wherein, spiral case film 122 is fixing by the forms such as mighty bond or iron wire and snail plate 121.
In addition, in the time that snail plate 121 is installed on biside plate 11, for the ease of assembling and the dismounting of snail plate 121, snail plate 121 positive stop hook 1211 that wherein an end is provided with on side plate 11, positioning hole 111 peripheries match, the other end is provided with the pin-and-hole 1212 plugging for latch 1213.On snail plate 121, the wherein positioning hole 111 of side plate is passed in pin-and-hole 1212 ends, place, and be inserted in positioning hole 111 corresponding on another side plate 11, now ensure that pin-and-hole 1212 is positioned at the outside of side plate 11, by the past interior insertion latch 1213 of pin-and-hole 1212, thereby prevent that snail plate 121 from extracting out, and can prevent the positioning hole 111 of snail plate 121 through side plate 11 away from the positive stop hook 1211 on snail plate 121, realize thus the installation of snail plate 121 on biside plate 11.
In the utility model, insert biside plate 11 by snail plate 121, now each snail plate 121 has formed the skeletal structure of spiral case 12, the spiral case film 122 that is covered in snail plate 121 outsides coordinates side plate 11, make formation wind passage 2 between snail plate 121 and biside plate 11, in the utility model, spiral case 12 is cooperatively interacted and is formed by snail plate 121 and spiral case film 122, and snail plate 121 is directly inserted as side plate 11 while installing, as long as and spiral case film 122 sticks in outside snail plate 121, there is easy accessibility with respect to conventional volute, time saving and energy saving advantage.
Claims (5)
1. the centrifugal blower with plug-in type spiral case, comprise fuselage, fuselage is made up of two blocks of side plates that are parallel to each other and the spiral case that is positioned between biside plate, spiral case and biside plate surround wind passage, it is characterized in that: described spiral case is made up of the snail plate of some long strips, on biside plate, all offer some positioning holes of arranging along wind passage periphery; Each snail plate passes the wherein positioning hole of side plate, and is inserted in positioning hole corresponding on another side plate; On snail plate perisporium, also have along wind passage periphery and arrange and air-locked spiral case film.
2. the centrifugal blower with plug-in type spiral case according to claim 1, is characterized in that: each snail plate is parallel to each other, and on biside plate, the quantity of positioning hole is identical, and is symmetrically set.
3. the centrifugal blower with plug-in type spiral case according to claim 2, is characterized in that: the distance that same side plate is taken up an official post between meaning two adjacent positioning holes is 10～50mm.
4. the centrifugal blower with plug-in type spiral case according to claim 3, is characterized in that: the distance that same side plate is taken up an official post between meaning two adjacent positioning holes is 30mm.
5. the centrifugal blower with plug-in type spiral case according to claim 1, is characterized in that: the described snail plate positive stop hook that wherein an end is provided with on side plate, positioning hole periphery matches, the other end is provided with the pin-and-hole plugging for latch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320811721.1U CN203627321U (en) | 2013-12-11 | 2013-12-11 | Centrifugal fan with plug-in type spiral case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320811721.1U CN203627321U (en) | 2013-12-11 | 2013-12-11 | Centrifugal fan with plug-in type spiral case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203627321U true CN203627321U (en) | 2014-06-04 |
Family
ID=50813804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320811721.1U Expired - Fee Related CN203627321U (en) | 2013-12-11 | 2013-12-11 | Centrifugal fan with plug-in type spiral case |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203627321U (en) |
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2013
- 2013-12-11 CN CN201320811721.1U patent/CN203627321U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140604 Termination date: 20141211 |
|
| EXPY | Termination of patent right or utility model |