CN203717469U - Mesh-type outer-rotor fan - Google Patents
Mesh-type outer-rotor fan Download PDFInfo
- Publication number
- CN203717469U CN203717469U CN201420041126.9U CN201420041126U CN203717469U CN 203717469 U CN203717469 U CN 203717469U CN 201420041126 U CN201420041126 U CN 201420041126U CN 203717469 U CN203717469 U CN 203717469U
- Authority
- CN
- China
- Prior art keywords
- mesh
- axial
- connection portion
- annular
- annular connection
- Prior art date
- 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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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to the field of fan manufacturing, in particular to a mesh-type outer-rotor fan. The mesh-type outer-rotor fan comprises a front mesh, a fan body and a rear mesh, The bottom of the front mesh axial extends to form a first annular connection portion, the bottom of the rear mesh axial extends to form a second annular connection portion, and the second annular connection portion is embedded in the first annular connection portion; a plurality of inverted-L shaped positioning notches are evenly formed in the bottom periphery of the first annular connection portion, each positioning notch comprises an axial portion provided with an open bottom and a horizontal portion vertically intersected with the axial portion, and positioning pillars matched with the positioning notches are arranged on the second annular connection portion and are clamped and fixed at the tail end of the horizontal portion; each positioning pillar is provided with a limit ring in a penetrated manner, the first annular connection portion is provided with hooks, and the limit rings can be clamped in the hooks. By combining two mounting modes, axial positioning and horizontal positioning of the front mesh1 and the rear mesh 2 can be realized at the same time, and offset in the axial direction and the horizontal direction can be avoided; bolts are omitted, and connection is firm and easy to implement.
Description
Technical field
The utility model relates to blower fan and manufactures field, relates in particular to external rotor net cover type blower fan.
Background technique
Blower fan is mainly used in the ventilation in the fields such as metallurgy, petrochemical industry, electric power, urban track traffic, weaving, boats and ships and various places.Existing blower fan comprises motor and be contained in the blade on motor, and motor generally adopts external rotor electric machine, drives blade rotation by external rotor.Be provided with guard at blade and motor outside, utilize guard that larger bar is intercepted in guard outside, thereby blade is effectively protected.And the guard using mostly at present is former and later two guards and is fixedly connected with by screw, easily produce following problem: easy fitted not when screw is installed, often owing to there is no the good stripped thread that produces of contraposition, simultaneously because blade needs periodic cleaning, screw because aging being difficult to of getting rusty takes off, causes the inconvenience of guard dismounting after long-term use.
Model utility content
Technical problem to be solved in the utility model is to overcome the problems referred to above, and a kind of easy for installation, external rotor net cover type blower fan of being connected firmly is provided.
The technical solution of the utility model is:
External rotor net cover type blower fan, comprise front mesh enclosure, fan main body and rear net cover, is characterized in that: described front mesh enclosure bottom is extended with annular joint vertically No. one, described rear net cover bottom is extended with annular joint vertically No. two, and No. two annular joint can be embedded in an annular joint;
In the bottom peripheral edge of a described annular joint, evenly have the locating notch of multiple inverted L-shapeds, described locating notch comprises axial part and the perpendicular crossing transverse part of bottom end opening, described No. two annular joints are provided with the locating column matching with locating notch, and locating column is fastened in transverse part;
On described locating column, be equipped with a limited ring, a described annular connection part is provided with a grab matching with limited ring in transverse part front end place, and described limited ring is connected on grab.
The diameter of described locating column is less than the width of described axial groove and equals the width of transverse groove.
Described locating column top is provided with a flange, and described lip diameter is greater than the width of transverse groove.
The beneficial effects of the utility model are: the utility model is fastened in transverse part in locating notch and is realized the axially locating of front mesh enclosure and rear net cover by locating column, it cannot be offset in the axial direction; Again by corresponding with grab the limited ring on locating column fixing, the located lateral before and after realizing between guard, avoids locating column occurred level in transverse part to slide and the lateral shift of guard before and after causing.This technical pattern is reasonable, without using screw, is connected firmly, and easily realizes.
Brief description of the drawings
Fig. 1 is fractionation schematic diagram of the present utility model.
Fig. 2 is overall schematic of the present utility model.
Fig. 3 is the partial enlarged drawing of an annular joint in the utility model.
Fig. 4 is the partial enlarged drawing that annular joint and No. two annular joints cooperatively interact.
Embodiment
Now by reference to the accompanying drawings the utility model is further described:
As shown in Figure 1, the present embodiment is a kind of external rotor net cover type blower fan, comprises front mesh enclosure 1, fan main body and rear net cover 2.Described front mesh enclosure 1 bottom is extended with annular joint 3 vertically No. one, described rear net cover 2 bottoms are extended with annular joint 4 vertically No. two, the diameter of No. two annular joints 4 is slightly less than annular joint 3 No. one, thereby No. two annular joints 4 can be embedded in an annular joint 3.
As shown in Figure 2, Figure 3, Figure 4, evenly have the locating notch 30 of multiple inverted L-shapeds in the bottom peripheral edge of a described annular joint 3, described locating notch 30 comprises axial part 31 and the perpendicular crossing transverse part 32 of bottom end opening.Described No. two annular joints 4 are provided with the locating column 41 matching with locating notch 30.The diameter of described locating column 41 is less than the width of described axial part 31 and equals the width of transverse part 32.In the time that No. two annular joints 4 are fixedly connected with an annular joint 3, locating column 41 enters from the opening of axial part 31 bottoms, is freely arrived transverse part 32 and is fastened in transverse part 32 by axial part 31.Now can avoid the axial dipole field of locating column 41 in the locating notch 30 of inverted L-shaped, thereby ensure the axially locating between front mesh enclosure 1 and rear net cover 2.
On described locating column 41, be equipped with a limited ring 42, a described annular joint 3 is positioned at transverse part 32 front end places and is provided with a grab 33 matching with limited ring 42.When the diameter of limited ring 42 equals locating column 41 and is fastened in transverse part 32 end, limited ring 42 is to the distance of grab 33, thereby limited ring 42 can be connected in grab 33 just.When locating column 41 enters into transverse part 32 ends and is fastened in wherein, described limited ring 42 is connected in grab 33, make locating column 41 not transversely portion 32 move horizontally, thereby ensure the located lateral between front mesh enclosure 1 and rear net cover 2.
As preferentially, described locating column 41 tops are provided with a flange 43, and described flange 43 diameters are greater than the width of transverse groove 32.This is for locating column 41 is more firmly fixed in transverse groove 32, and can in transverse groove 32, not come off because annular joint 3 and No. two annular joints 4 such as are out of shape at the factor.
The utility model is fastened in transverse part 32 in locating notch 30 and is realized the axially locating of front mesh enclosure 1 and rear net cover 2 by locating column 41, it cannot be offset in the axial direction; By corresponding with grab 33 limited ring on locating column 41 42 fixing, realize the located lateral between front mesh enclosure 1 and rear net cover 2 again, avoid locating column 41 to cause the lateral shift of front mesh enclosure 1, rear net cover 2 in the interior occurred level slip of transverse part 32.This technical pattern is reasonable, without using screw, is connected firmly, and easily realizes.
Claims (3)
1. external rotor net cover type blower fan, comprise front mesh enclosure, fan main body and rear net cover, it is characterized in that: described front mesh enclosure bottom is extended with annular joint vertically No. one, described rear net cover bottom is extended with annular joint vertically No. two, and No. two annular joint can be embedded in an annular joint;
In the bottom peripheral edge of a described annular joint, evenly have the locating notch of multiple inverted L-shapeds, described locating notch comprises axial part and the perpendicular crossing transverse part of bottom end opening, described No. two annular joints are provided with the locating column matching with locating notch, and locating column is fastened in transverse part;
On described locating column, be equipped with a limited ring, a described annular connection part is provided with a grab matching with limited ring in transverse part front end place, and described limited ring is connected on grab.
2. according to external rotor net cover type blower fan claimed in claim 1, it is characterized in that: the diameter of described locating column is less than the width of described axial groove and equals the width of transverse groove.
3. according to external rotor net cover type blower fan claimed in claim 1, it is characterized in that: affiliated locating column top is provided with a flange, and described lip diameter is greater than the width of transverse groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420041126.9U CN203717469U (en) | 2014-01-23 | 2014-01-23 | Mesh-type outer-rotor fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420041126.9U CN203717469U (en) | 2014-01-23 | 2014-01-23 | Mesh-type outer-rotor fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203717469U true CN203717469U (en) | 2014-07-16 |
Family
ID=51156627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420041126.9U Expired - Fee Related CN203717469U (en) | 2014-01-23 | 2014-01-23 | Mesh-type outer-rotor fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203717469U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104632577A (en) * | 2015-02-04 | 2015-05-20 | 湖州申祥丝织有限责任公司 | Structure improved cold shield baffle of cryopump |
| CN106015117A (en) * | 2016-07-26 | 2016-10-12 | 珠海格力电器股份有限公司 | Cover structure and electric fan with same |
-
2014
- 2014-01-23 CN CN201420041126.9U patent/CN203717469U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104632577A (en) * | 2015-02-04 | 2015-05-20 | 湖州申祥丝织有限责任公司 | Structure improved cold shield baffle of cryopump |
| CN106015117A (en) * | 2016-07-26 | 2016-10-12 | 珠海格力电器股份有限公司 | Cover structure and electric fan with same |
| CN106015117B (en) * | 2016-07-26 | 2019-07-26 | 珠海格力电器股份有限公司 | Cover structure and electric fan with the cover structure |
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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: 20140716 Termination date: 20170123 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |