CN202114566U - Power tool - Google Patents
Power tool Download PDFInfo
- Publication number
- CN202114566U CN202114566U CN2011201557315U CN201120155731U CN202114566U CN 202114566 U CN202114566 U CN 202114566U CN 2011201557315 U CN2011201557315 U CN 2011201557315U CN 201120155731 U CN201120155731 U CN 201120155731U CN 202114566 U CN202114566 U CN 202114566U
- Authority
- CN
- China
- Prior art keywords
- retainer
- locking piece
- axis
- power tool
- guard shield
- 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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Abstract
The utility model discloses a power tool, which comprises a casing with a motor. The casing is provided with a first axis, a casing of a transmission device, an output shaft, a protective cover, a locking device and a plane. The casing of the transmission device is provided with a first end and a second end which is connected with the casing, the output shaft rotatablely supports the casing of the transmission device and extends out of the first end of the casing of the transmission device, the output shaft is provided with a second axis, and the protective cover is movably connected with the casing of the transmission device in a matching mode. The locking device locks the protective cover relative to the casing of the transmission device and comprises a locking piece arranged on the protective cover and a retainer meshed with the locking piece in a locking location, the plane comprises a first axis and a second axis, the retainer rotates around a pivot shaft with a pivot axis which is perpendicular to the plane. The power tool has the advantages that the protective cover with the locking piece is simply added on a structure of a traditional power tool, in particular to a corner grinding machine, and the protective cover is reliably fixed on each rotation position through the retainer.
Description
Technical field
The utility model relates to a kind of power tool, especially a kind of electric tool that has guard shield.
Background technology
The electric tool that has guard shield comprises angle grinding machine, abrasive machine etc. usually.According to requirements of one's work, the operator need carry out the adjusting on the angle position to guard shield, and guard shield is reorientated to play a protective role.
Common in the market locking device is a cam lock holding mechanism, is applicable to the electric tool that collar is movable, and promptly the collar at guard shield is provided with cam member.After guard shield was installed on the fuselage, the operator pulled cam member, forced collar to shrink; Thereby make guard shield be able to locking; Regulate the angle of guard shield if desired, then pull open cam member, the collar of contraction is discharged; At this moment, guard shield can be rotated to regulate the new operating angle in location with respect to fuselage.But staff need apply bigger power and pull open cam member, has reduced the comfort level of people's hand operated, and this cam lock holding mechanism, during use, because vibration might cause the relative fuselage rotation of guard shield, thereby have potential safety hazard.
U.S. Pat 7063606 discloses a kind of rotary spanner that is positioned on the fuselage; Rotary spanner is provided with convexity, and under nature, rotary spanner is by spring force; Be fastened togather with the draw-in groove on the guard shield; If when the operator pulled the rotary spanner rotation, convexity on the spanner and the draw-in groove on the guard shield broke away from, thereby are rotated adjusting.Such mechanism makes the structure relative complex and the inconvenient operation of fuselage because rotary spanner is installed on the fuselage.
Publication number is the Chinese patent of CN101293330A; Disclose a kind of retainer that is arranged on the bearing block side arm, under nature, retainer is by spring force; Be fastened togather with the draw-in groove on the guard shield; If the operator operates retainer, the draw-in groove on retainer and the guard shield breaks away from, thereby carries out the rotation adjusting of guard shield.Such mechanism makes the size of bearing block increase because retainer is mounted on the side arm of bearing block on the one hand, complex structure, and operation is also inconvenient on the other hand.
The utility model content
The technical problem that the utility model solved is: a kind of safe and easy to operate guard shield locking mechanism simple in structure is provided.
For addressing the above problem; The power tool of the utility model comprises the housing that motor is housed; This housing has first axle, has the gear mechanism housing of first end and second end that is connected with casing, rotatably is supported on the gear mechanism housing and stretches out the output shaft of gear mechanism housing first end; This output shaft has second axis; Have guard shield that connects with the gear mechanism housing activity and the locking device that guard shield is locked with respect to gear mechanism housing, this locking device comprises locking piece that is arranged on the guard shield and the retainer that in a latched position, meshes with locking piece, comprises a plane of the first axle and second axis; This retainer around one have pivot axis pivotal axis rotate, this pivot axis is perpendicular to this plane.
The utlity model has its advantage, on traditional power tool, especially angle grinding machine, be provided with simple in structurely one have a locking piece guard shield, this guard shield is fixed in each position of rotation through retainer reliably.
Description of drawings
Fig. 1 is the stereogram that the guard shield locking device of the utility model electric tool is positioned at latched position;
Fig. 2 is the stereogram that the guard shield locking device of the utility model electric tool is positioned at the off-position;
Fig. 3 is the explosive view of the guard shield locking device of the utility model electric tool;
Fig. 4 is the stereogram of the guard shield of the utility model electric tool.
The specific embodiment
Shown in Fig. 1-4, the utility model discloses a kind of electric tool, particularly a kind of angle mill type electric tool; Comprise casing 1 and gear mechanism housing 2 that motor is housed, casing 1 has first axle X, and this gear mechanism housing 2 has first end 21 and second end 22 that is connected with casing; In gear mechanism housing 2, be provided with the bevel-gear sett (not shown); Vertically stretch out an output shaft 3 from first end 21 of this gear mechanism housing 2 with respect to first axle X, this output shaft 3 rotatably is supported in the bearing block 4, and this converts rotatablely moving of motor to output shaft 3 rotatablely moving around the second axis Y to bevel gear; Be installed in the rotatable working head (not shown) on the output shaft 3; One guard shield 5, this guard shield 5 can connect with bearing block 4 activities, the injury of the smear metal that guard shield 5 parts avoid being splashed with the personnel of this electric tool of protection operation round working head or the part of working head; One locking device 6; This locking device 6 comprises a locking piece 61 and retainer 62, and this locking piece 61 has towards first end 612 of gear mechanism housing 2 with towards second end 613 of guard shield 5, and locking piece 61 circumferentially is provided with a plurality of grooves 611 along the second axis Y's; These grooves 611 extend towards the direction of second end (613) of said locking piece 61 from first end (612) of locking piece (61).It is one outstanding 621 that this retainer 62 is provided with, and in a latched position, this outstanding 621 is meshed with one of them groove 611; Thereby prevent that effectively guard shield 5 relative bearing blocks 4 from rotating, and it is understandable that locking piece 61 is evenly distributed with a plurality of convexities on the circumference that with the second axis Y is the center of circle; These convexities are extended towards the direction away from second end 613 of locking piece 61 from first end 612 of locking piece 61; And retainer is provided with corresponding grooves, also can realize same locking, in the present embodiment; Preferably adopt retainer 62 to be provided with and give prominence to 621, locking piece 61 is provided with the structure of groove 611.
Like Fig. 3 and shown in Figure 4, bearing block 4 offers groove 71 along the direction that is parallel to the second axis Y, and the circumferential direction of the edge second axis Y offers annular groove 72; Guard shield 5 has a guard shield axle journal 51, and this guard shield axle journal 51 has an inner surface 511 and outer surface (not shown), and this inner surface 511 is provided with first protruding 512; Locking piece 61 has an inner surface 614, and this inner surface 614 is provided with second convexity 615, in the installation process of guard shield 5; Align with groove 71 first protruding 512 and second protruding 615; Guard shield 5 slides along groove 71 and drops in the annular groove 72 up to first protruding 512 and second convexity 615, and when as yet locking device 6 not being installed, guard shield 5 can rotate around second axis; At this moment, first protruding 512 and second protruding 615 be supported in this annular groove 72.After locking device 6 is installed; Have only when the groove 611 of locking piece 61 breaks away from outstanding 621 of retainer 62; Guard shield 5 just can rotate around second axis; Guard shield 5 rotates to after the proper angle, with outstanding 621 engagements of the groove of locking piece 61 611 with retainer 62, thereby guard shield 5 is fixed on suitable angle.Hereinafter will detail the process of locking device 6 work.
Shown in Fig. 1-3, locking device 6 comprises locking piece 61 and retainer 62, and this locking piece 61 is fixedly connected by welding together with guard shield 5; Also can pass through other fixed connection mode, like snap-in structure of protruding and groove or the like, this locking piece 61 has towards first end 612 of gear mechanism housing 2 with towards second end 613 of guard shield 5; Locking piece 61 circumferentially is provided with a plurality of grooves 611 along the second axis Y's, and this groove 611 extends towards the direction of second end 613 of locking piece 61 from first end 612 of locking piece, preferably; These grooves 611 are through first end 612 and second end 613 of locking piece 61; This retainer 62 can rotate around a pivot axis Z, and a flexible member 63 is preferably spring; The one of which end is installed on first end 21 of mechanism housing 2; The other end is installed on the retainer 62, and flexible member 63 is towards this retainer 62 of the direction bias voltage that is parallel to the second axis Y, thereby makes the outstanding 621 biased towards the direction of one of them groove 611 that passes locking piece 61 of retainer 62; The benefit that is provided with like this is; When electric tool was in running order, under the bias voltage of flexible member 63, outstanding 621 of retainer 62 can be after being in engagement with one of them groove 611 of locking piece 61 all the time.When needs are changed the relative position of guard shield 5 relative bearing blocks 4; Staff is pressed the press section 622 of locking device 6 to overcome the elastic force of flexible member 63, makes that outstanding 621 of retainer 62 break away from the groove 611 of locking piece, and this moment is bearing block 4 rotating shroud 5 relatively; After rotating to a suitable angle; Staff unclamps the press section, makes that outstanding 621 of retainer 62 are meshed with another groove 611 of locking piece under the effect of flexible member 63, thereby retightens guard shield 5.Wherein, retainer 62 is by such structure, and retainer 62 can pivot around an axis Z; One end of one support 64 links to each other with retainer; The other end is arranged on the gear mechanism housing, and perhaps this support 64 can be one-body molded with mechanism housing, and it is the circular hole of central axis with axis Z that this support 64 is provided with one; Retainer 62 is provided with one equally with the circular hole of the central axis of axis Z; One rivet 65 passes this two circular holes, so that retainer 62 is fixed on the support 64, makes retainer 62 rotatable with respect to support 64.Those of ordinary skills; That also can expect other easily is fixed on the structure on the support 64 with retainer 62; Be provided with the convexity of passing support 64 circular holes like retainer 62, pass the end of the convexity of circular hole then and flattened, thereby make retainer 62 and support 64 be fixed.Retainer 62 perpendicular to a plane P, comprises the first axle X and the second axis Y around the axis Z that pivots on this plane P, retainer 62 is built into the gap location between bearing block 4 and the guard shield 5, thereby makes the sufficient again operating space of staff operate retainer.Further, the press section 622 on the retainer 62 has the plane Q that contacts with staff, and this plane Q is perpendicular to plane P.
Only be wherein several kinds of specific embodiment of the utility model shown in the description of preceding text and the accompanying drawing, it is main with claims that the utility model requires the scope of protection.Through the understanding to preceding text description and accompanying drawing, those of ordinary skill in the art is through same mode, and perhaps with the form through simple replacement, non-creativeness ground is simply replaced partial component and is regarded as in the scope of the utility model protection.For example: can be arranged to groove on the retainer; Locking piece is provided with convexity, and the flexible member that is installed in addition between retainer and the mechanism housing also can be realized or the like through a mutually exclusive magnet is installed on retainer and mechanism housing respectively.
Claims (12)
1. power tool; Comprise the casing (1) that motor is housed, said casing has first axle (X), has the gear mechanism housing (2) of first end (21) and second end (22) that is connected with casing (1); Rotatably be supported in the bearing block (4) and stretch out the output shaft (3) of gear mechanism housing (2) first ends (21); Said output shaft (3) has second axis (Y), has guard shield (5) that connects with bearing block (4) activity and the locking device (6) that guard shield (5) is locked with respect to gear mechanism housing (2), and said locking device (6) comprises locking piece (61) that is arranged on the guard shield (5) and the retainer (62) that meshes with locking piece (61); The plane (P) that comprises first axle (X) and second axis (Y); It is characterized in that described retainer rotates around a pivot axis (Z), said pivot axis (Z) is perpendicular to said plane (P).
2. power tool as claimed in claim 1 is characterized in that, said locking device (6) comprises a flexible member (63), and said flexible member (63) is towards the said retainer of direction bias voltage (62) that is parallel to second axis (Y).
3. power tool as claimed in claim 2 is characterized in that, an end of described flexible member (63) links to each other with said gear mechanism housing (2), and the other end links to each other with said retainer (62).
4. power tool as claimed in claim 1; It is characterized in that; Said retainer (62) also comprises a press section (622), and said press section (622) have the plane (Q) that contacts with staff, and this plane (Q) is perpendicular to the said plane (P) that includes first axle (X) and second axis (Y).
5. power tool as claimed in claim 1; It is characterized in that; Said locking piece (61) has towards first end (612) of said gear mechanism housing (2) with towards second end (613) of said guard shield (5); Said locking piece (61) circumferentially is provided with a plurality of grooves (611) along second axis (Y), and said groove (611) extends towards the direction of second end (613) of said locking piece (61) from first end (612) of said locking piece (61).
6. power tool as claimed in claim 5 is characterized in that, said groove (611) is through first end (612) and second end (613) of said locking piece (61).
7. power tool as claimed in claim 5 is characterized in that, said retainer (62) is provided with outstanding (621), and mesh in a latched position with said groove (611) said outstanding (621).
8. power tool as claimed in claim 1; It is characterized in that; Said locking piece (61) has towards first end (612) of said gear mechanism housing (2) with towards second end (613) of said guard shield (5); Said locking piece (61) circumferentially is provided with a plurality of convexities along second axis (Y), and said convexity is extended towards the direction away from said locking piece (61) second ends (613) from first end (612) of said locking piece (61).
9. power tool as claimed in claim 8 is characterized in that, said retainer (62) is provided with groove, and said groove and said convexity mesh in a latched position.
10. power tool as claimed in claim 1; It is characterized in that; Said locking device (6) also comprises a support (64); One end of said support (64) links to each other with said retainer (62), and the other end is arranged on the said gear mechanism housing (2), and said retainer (62) is rotatable with respect to said support (64).
11. power tool as claimed in claim 1; It is characterized in that; Said gear mechanism housing (2) is provided with the groove (71) that is parallel to said second axis (Y) and around the annular groove (72) of said second axis (Y) circumferential arrangement; The inner surface (511) of said guard shield (5) is provided with first convexity (512), and the inner surface (614) of said locking piece (61) is provided with second convexity (615).
12. power tool as claimed in claim 11 is characterized in that, in a latched position, said first convexity (614) and second convexity (615) are supported in the described annular groove (72).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201557315U CN202114566U (en) | 2011-05-17 | 2011-05-17 | Power tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201557315U CN202114566U (en) | 2011-05-17 | 2011-05-17 | Power tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202114566U true CN202114566U (en) | 2012-01-18 |
Family
ID=45455664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201557315U Expired - Fee Related CN202114566U (en) | 2011-05-17 | 2011-05-17 | Power tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202114566U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106514496A (en) * | 2015-09-10 | 2017-03-22 | 株式会社牧田 | Grinder |
| CN111791129A (en) * | 2019-04-03 | 2020-10-20 | 南京德朔实业有限公司 | Multifunctional electric tool |
-
2011
- 2011-05-17 CN CN2011201557315U patent/CN202114566U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106514496A (en) * | 2015-09-10 | 2017-03-22 | 株式会社牧田 | Grinder |
| CN111791129A (en) * | 2019-04-03 | 2020-10-20 | 南京德朔实业有限公司 | Multifunctional electric tool |
| CN111791190A (en) * | 2019-04-03 | 2020-10-20 | 南京德朔实业有限公司 | Multifunctional electric tool |
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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: 20120118 Termination date: 20170517 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |