CN202114567U - Quick-change structure of burst protection and protective cover of electric power tool work piece - Google Patents
Quick-change structure of burst protection and protective cover of electric power tool work piece Download PDFInfo
- Publication number
- CN202114567U CN202114567U CN2011201800453U CN201120180045U CN202114567U CN 202114567 U CN202114567 U CN 202114567U CN 2011201800453 U CN2011201800453 U CN 2011201800453U CN 201120180045 U CN201120180045 U CN 201120180045U CN 202114567 U CN202114567 U CN 202114567U
- Authority
- CN
- China
- Prior art keywords
- protective cover
- quick change
- quick
- groove
- anchor ear
- 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 - Lifetime
Links
Images
Landscapes
- Grinding-Machine Dressing And Accessory Apparatuses (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The utility model discloses a quick-change structure of a burst protection and protective cover of an electric power tool work piece, which comprises a bearing seat and a protective cover. The protective cover is connected to the bearing seat through a hoop, the hoop is connected with a quick-change handle, the quick-change handle is provided with a convex rib, the bearing seat is provided with a slip slot, the convex rib penetrates through the hoop to be limited in the slip slot so that the protective cover plays a role of burst protection, a gap of the hoop is connected with a nut through a bolt, a connecting end of the quick-change handle is in a shape of an eccentric cam, the connecting end of the quick-change handle is articulated with the bolt, the hoop is provided with at least a radial through slot, the convex rib penetrates through a corresponding through slot to be limited in the slip slot, the bearing seat is provided with a circular slot which is positioned below the slip slot, a convex point is arranged in the hoop, and the convex point penetrates through the slip slot to be limited in the circular slot. With the adoption of the quick-change structure of the burst protection and protective cover of the electric power tool work piece, the protective cover can not be rotated again after being rotated by a certain angle so that the problem of oversize rotation angle of the protective cover is effectively solved when a grinding wheel piece bursts. The quick-change structure of the burst protection and protective cover of the electric power tool work piece can effectively protect an operator, has rigid positioning and is safe and reliable.
Description
Technical field
The utility model relates to a kind of electric tool, is specifically related to the blow out protection of angle grinding machine active gage and the quick change construction of protective cover.
Background technology
Electric angle grinder is widely used in grinding, cutting, engraving of metal and stone material etc.; Owing to be handheld tool, add its work under bad environment, for guaranteeing operating personnel's safety; Sanding machine all is provided with protective cover above emery wheel, be used to control machining angle and prevent that emery wheel from hurting sb.'s feelings.Specification requirement according to electric angle grinder; When being used for metal removal, electric angle grinder need use the grinding protective cover; Need use the cutting protective cover during cutting of metal and stone material; Prior art is the side that protective cover is fixed on the outer bearing chamber of output shaft, is fixedly clamped with cruciform slot screw and square nut, and is as shown in Figure 1.This structure makes to be adjusted sanding machine protective cover angle and changes very inconvenience of protective cover, and each adjustment need be retightened protective cover with instrument.And a very important examination point is arranged in the specification requirement of electric angle grinder, the anglec of rotation that is exactly the protective cover in designated environment lower grinding wheel sheet blast back can not be greater than 90 degree.Common do not have the protective cover of special measure can not meet this condition certainly; Just in case grinding wheel was using and middle blast; Because to the limiting structure of protective cover rotation, the blast enormous motivation that produces can not make protective cover 360 degree rotations, thereby might damage operating personnel.
The utility model content
The purpose of the utility model is to provide the blow out protection of electric tool active gage and the quick change construction of protective cover, and can solve existing angle grinding machine effectively possibly damage operating personnel, has potential safety hazard, and the problem of changing protective cover inconvenience.
In order to solve the problems of the technologies described above, the utility model adopts following technical scheme:
The blow out protection of electric tool active gage and the quick change construction of protective cover; Comprise bearing block and protective cover; Protective cover is connected on the bearing block through anchor ear, it is characterized in that: anchor ear is connected with the quick change handle, and the quick change handle is provided with convex tendon; Bearing block is provided with draw-in groove, and convex tendon passes anchor ear and is limited in and makes protective cover play the blow out protection effect in the draw-in groove.
Further, the breach of anchor ear connects through screw bolt and nut, and the link of quick change handle is the eccentric cam shape, the link of quick change handle and bolted splice.
Preferably, the link of quick change handle through bolt with rivet on bolt.
Preferably, spot welding is connected protective cover with anchor ear.
Further, anchor ear is provided with at least one radially groove, and convex tendon is limited in the draw-in groove after passing corresponding radially groove, can be according to different situation, and make convex tendon pass corresponding one radially in the groove.
Preferably, the central angle of draw-in groove on bearing block is 60～120 degree, defines the rotary angle of protective cover, prevents that the protective cover anglec of rotation is excessive, thereby improves the safety coefficient of electric tool.
Further, bearing block is provided with annular groove, and annular groove is positioned at the below of draw-in groove, is provided with salient point in the anchor ear, and salient point is limited in the annular groove after passing draw-in groove, avoids producing jumping of above-below direction after the protective cover connecting axle bearing.
The utility model is owing to adopted technique scheme; After protective cover rotates to an angle, protective cover can't rotate again, efficiently solve the excessive problem of the anglec of rotation of grinding wheel explosion time protective cover; The operator is played effective protection, rigidity location, safe and reliable.Simultaneously can be not by the instrument angle can be fast, convenient conversion and the protective cover changed, and simple in structure, installing and replacing is conveniently, and is safe and reliable.The utility model is simple in structure, manufacturing is easy, cost is low, practical.
Description of drawings
Below in conjunction with accompanying drawing the utility model is described further:
Fig. 1 is the structural representation of existing protective cover;
Structural representation when Fig. 2 is in locking state for quick change handle in the utility model;
Structural representation when Fig. 3 mediates for quick change handle in the utility model;
Structural representation when Fig. 4 is in open mode for quick change handle in the utility model;
Fig. 5 is the structural representation of the utility model bottom bracket and protective cover;
Fig. 6 is the structural representation after the utility model bottom bracket and protective cover rotate an angle.
The specific embodiment
To shown in Figure 6, be the blow out protection of the utility model electric tool active gage and the quick change construction of protective cover like Fig. 2, comprise bearing block 1 and protective cover 2, protective cover 2 is connected on the bearing block 1 through anchor ear 3, and 3 spot welding are connected protective cover 2 with anchor ear.Anchor ear 3 is connected with quick change handle 4, and quick change handle 4 is provided with convex tendon 41, and bearing block 1 is provided with draw-in groove 11; The central angle of draw-in groove 11 on bearing block 1 is 60～120 degree; Convex tendon 41 passes anchor ear 3 and is limited in the draw-in groove 11, and draw-in groove 11 defines protective cover 2 rotary angles, prevents that protective cover 2 anglecs of rotation are excessive; Make protective cover 2 play the blow out protection effect, thereby improve the safety coefficient of electric tool.Anchor ear 3 is provided with at least one radially groove 33, and convex tendon 41 is limited in the draw-in groove 11 after passing corresponding radially groove 33, can be according to different situation, and make convex tendon 41 pass corresponding one radially in the groove 33.The breach of anchor ear 3 is connected with nut 32 through bolt 31, and the link 42 of quick change handle 4 is the eccentric cam shape, and the link 42 of quick change handle 4 is hinged with bolt 31, and the link 42 of quick change handle 4 is riveted on the bolt 31 with rivet 43 through bolt.When quick change handle 4 was opened, size was being opened a business when the anchor ear 3 of protective cover 2 was shaped according to self, and through pulling quick change handle 4, quick change handle 4 rotates around rivet 43, and the cam eccentric throw changes impels compressing anchor ear 3, made anchor ear 3 reduced and was contained on the bearing block 1.Convex tendon 41 in the quick change handle 4 snaps onto in the draw-in groove 11 through the radially groove 33 in the protective cover anchor ear 3, limits the rotary angle of protective cover.Bearing block 1 is provided with annular groove 12, and annular groove 12 is positioned at the below of draw-in groove 11, is provided with salient point 34 in the anchor ear 3, and salient point 34 is limited in the annular groove 12 after passing draw-in groove 11, avoids protective cover 2 connecting axle bearings 1 back to produce jumping of above-below direction.
More than be merely the specific embodiment of the utility model; But the technical characterictic of the utility model is not limited thereto; Any is the basis with the utility model; For realizing essentially identical technique effect, do the ground simple change, be equal to replacement or modification etc., all be covered by among the protection domain of the utility model.
Claims (7)
1. the quick change construction of the blow out protection of electric tool active gage and protective cover; Comprise bearing block (1) and protective cover (2); Said protective cover (2) is connected on the bearing block (1) through anchor ear (3), it is characterized in that: said anchor ear (3) is connected with quick change handle (4), and said quick change handle (4) is provided with convex tendon (41); Said bearing block (1) is provided with draw-in groove (11), and said convex tendon (41) passes anchor ear (3) and is limited in and makes protective cover (2) play the blow out protection effect in the draw-in groove (11).
2. the blow out protection of electric tool active gage according to claim 1 and the quick change construction of protective cover; It is characterized in that: the breach of said anchor ear (3) is connected with nut (32) through bolt (31); The link (42) of said quick change handle (4) is the eccentric cam shape, and the link (42) of said quick change handle (4) is hinged with bolt (31).
3. the blow out protection of electric tool active gage according to claim 2 and the quick change construction of protective cover is characterized in that: the link (42) of said quick change handle (4) is riveted on the bolt (31) with rivet (43) through bolt.
4. the blow out protection of electric tool active gage according to claim 1 and the quick change construction of protective cover is characterized in that: spot welding is connected said protective cover (2) with anchor ear (3).
5. the blow out protection of electric tool active gage according to claim 1 and the quick change construction of protective cover; It is characterized in that: said anchor ear (3) is provided with at least one radially groove (33), and said convex tendon (41) is limited in the draw-in groove (11) after passing corresponding radially groove (33).
6. according to the blow out protection of claim 1 or 5 described electric tool active gages and the quick change construction of protective cover, it is characterized in that: the central angle of said draw-in groove (11) on bearing block (1) is 60～120 degree.
7. the blow out protection of electric tool active gage according to claim 1 and the quick change construction of protective cover; It is characterized in that: said bearing block (1) is provided with annular groove (12); Said annular groove (12) is positioned at the below of said draw-in groove (11); Be provided with salient point (34) in the said anchor ear (3), said salient point (34) is limited in the annular groove (12) after passing draw-in groove (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201800453U CN202114567U (en) | 2011-05-31 | 2011-05-31 | Quick-change structure of burst protection and protective cover of electric power tool work piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201800453U CN202114567U (en) | 2011-05-31 | 2011-05-31 | Quick-change structure of burst protection and protective cover of electric power tool work piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202114567U true CN202114567U (en) | 2012-01-18 |
Family
ID=45455665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201800453U Expired - Lifetime CN202114567U (en) | 2011-05-31 | 2011-05-31 | Quick-change structure of burst protection and protective cover of electric power tool work piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202114567U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104325407A (en) * | 2014-10-30 | 2015-02-04 | 深圳市京田精密五金有限公司 | Protective housing of grinding wheel machine |
| CN104493721A (en) * | 2014-12-23 | 2015-04-08 | 深圳市京田精密五金有限公司 | Protective housing of grinding machine |
| CN104552003A (en) * | 2014-12-23 | 2015-04-29 | 深圳市京田精密五金有限公司 | Grinding machine protection cover capable of being fast dismounted |
| CN108161729A (en) * | 2017-12-13 | 2018-06-15 | 东莞市玮明实业有限公司 | A kind of bull main axle structure of polishing grinding equipment |
| CN109058385A (en) * | 2018-10-28 | 2018-12-21 | 朱晨骏 | Angle grinder is converted into the attachment device of garden instrument |
-
2011
- 2011-05-31 CN CN2011201800453U patent/CN202114567U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104325407A (en) * | 2014-10-30 | 2015-02-04 | 深圳市京田精密五金有限公司 | Protective housing of grinding wheel machine |
| CN104493721A (en) * | 2014-12-23 | 2015-04-08 | 深圳市京田精密五金有限公司 | Protective housing of grinding machine |
| CN104552003A (en) * | 2014-12-23 | 2015-04-29 | 深圳市京田精密五金有限公司 | Grinding machine protection cover capable of being fast dismounted |
| CN104552003B (en) * | 2014-12-23 | 2017-07-11 | 深圳市京田精密科技有限公司 | A kind of quick-detachable abrasive disc machine shield |
| CN108161729A (en) * | 2017-12-13 | 2018-06-15 | 东莞市玮明实业有限公司 | A kind of bull main axle structure of polishing grinding equipment |
| CN109058385A (en) * | 2018-10-28 | 2018-12-21 | 朱晨骏 | Angle grinder is converted into the attachment device of garden instrument |
| CN109058385B (en) * | 2018-10-28 | 2024-04-05 | 永康市励鹰工贸有限公司 | Connecting device for converting angle grinder into garden tool |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202114567U (en) | Quick-change structure of burst protection and protective cover of electric power tool work piece | |
| CN204148964U (en) | A kind of multi-angle tool sharpening device | |
| CN102251936A (en) | Fan and wind wheel locking device thereof | |
| CN204107599U (en) | One two pulverizer at a slow speed | |
| CN204308763U (en) | A kind of quick trimming device of Inner arc emery wheel | |
| WO2012028604A3 (en) | Method and apparatus for the centreless grinding of a workpiece | |
| CN201350520Y (en) | Special free edge milling cutter | |
| CN203509795U (en) | Cutter and shear grinder | |
| CN2892333Y (en) | Rotatable precision lathe tool | |
| CN205200649U (en) | Milling cutter coils and has milling machine of milling cutter dish | |
| CN105710736B (en) | It is a kind of can the double mills of thickness electric knife sharpeners | |
| CN203817996U (en) | Alloy knife grinding wheel | |
| CN203774993U (en) | Squirrel-cage motor rotor balancing device | |
| CN202114566U (en) | Power tool | |
| CN207239313U (en) | A kind of electric discharge device that batch roll flute can be carried out to saw blade | |
| CN204771980U (en) | Conveniently dismantle electric polishing machine of mill | |
| CN204308762U (en) | A kind of trimming device of cylindrical emery wheel | |
| CN202934411U (en) | Blade grinding tool for pruning machine | |
| CN214621595U (en) | Rotor dynamic balance adjusting device | |
| CN203804765U (en) | Grinding head unit applicable to circumference and end surface grinding | |
| CN202901084U (en) | Universal joint for four-shaft honing machine | |
| CN102205484A (en) | Method for machining conical hole of wind-power locking disk, and special cutter | |
| CN202639364U (en) | Cutter head used for numerical control machine tool | |
| CN215919920U (en) | Numerical control knife sharpener emery wheel transposition mechanism | |
| CN203390661U (en) | Fine grinder for end milling cutters |
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: 20120118 |