CN204800592U - Electric tool - Google Patents
Electric tool Download PDFInfo
- Publication number
- CN204800592U CN204800592U CN201520370001.5U CN201520370001U CN204800592U CN 204800592 U CN204800592 U CN 204800592U CN 201520370001 U CN201520370001 U CN 201520370001U CN 204800592 U CN204800592 U CN 204800592U
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- Prior art keywords
- locking piece
- operating parts
- electric tool
- connector
- power input
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Abstract
The utility model discloses an electric tool, include: casing, motor and gear box, the casing holds motor and gear box, the gear box includes inputs the piece with the synchronous pivoted power of the rotor of motor, electric tool still includes: locking piece, operating parts, middle subassembly and biased element, power input piece is including a spacing plane that is on a parallel with the pivot of power input piece, the locking piece includes an ability and spacing plane complex locking plane and a joint portion, the operating parts includes a drive division, middle subassembly include one with the first connecting portion of joint portion complex and an ability by drive division driven second connecting portion, the biased element supports the locking piece, operating parts and casing constitution swing joint make starter motor of locking piece unblock power input piece through middle subassembly when the first direction activity is followed to the relative casing of operating parts, biased element messenger locking piece locking power input piece was passed through for the circuit of motor power supply to the disconnection when activity of second direction was followed to the relative casing of operating parts.
Description
Technical field
The utility model relates to a kind of electric tool, is specifically related to a kind of electric tool of unidirectional delivery torsion.
Background technology
Electric tool generally includes motor, transmission component and output precision, and output precision is in order to act on attachment, usually needs to connect clamping device.But, when we are at extracting tool annex, easily cause getting loose of the relative output precision of clamping device, getting loose of clamping device, attachment can be made to rupture.And the reverse rotation of motor also may be impacted clamping device clamping device is got loose, thus attachment is caused to rupture.Therefore in order to address this problem the pretightning force that we wish to increase the relative output precision of clamping device, the increase of pretightning force then by transmission component back transfer torsion to motor shaft, thus may may cause the damage of motor.
Summary of the invention
For solving the deficiencies in the prior art, the purpose of this utility model is to provide a kind of electric tool that can adapt to clamping device pretightning force and increase.
In order to realize above-mentioned target, the utility model adopts following technical scheme:
A kind of electric tool, comprising: housing, motor and gear-box; Housing holds motor and gear-box; Gear-box comprises the power input with the rotor synchronous axial system of motor; Electric tool also comprises: locking piece, operating parts, intermediate module and biased element; Power input comprises the spacing plane that is parallel to the rotating shaft of power input; Locking piece comprises the lock plane and a joint portion that an energy coordinates with spacing plane; Operating parts comprises a drive division; Intermediate module comprises the second connecting portion that first connecting portion coordinated with joint portion and an energy driven part drive; Biased element support lock locking member; Operating parts forms with housing and is flexibly connected, and makes locking piece unlock power input and starter motor when the relative housing of operating parts is movable along first direction by intermediate module; The relative housing of operating parts along be broken as during second direction activity feeding electric motors circuit and by biased element make locking piece lock power input.
Further, operating parts and housing form and are slidably connected, and first direction and second direction are the both direction that operating parts is relative when sliding relative to housing.
Further, intermediate module makes locking piece move along the first rectilinear direction, and the first rectilinear direction of locking piece movement is perpendicular to first direction and second direction.
Further, the first connecting portion comprises cylinder, and joint portion is formed with engagement groove, and cylinder passes engagement groove and contacts with joint portion.
Further, the second connecting portion comprises cambered surface, and drive division comprises can contact the driving inclined-plane of driving second connecting portion relative to housing movement with cambered surface.
Further, intermediate module comprises the first connector of a relative housing into rotation of energy, and the one end stating the first connector forms the first connecting portion, and the rotating shaft of the first connector is perpendicular to the first direction of the relative housing activity of operating parts; Intermediate module also comprises second connector of an energy relative to housing linearly movement, and one end of the second connector forms the second connecting portion, the other end is connected with the first connector.
Further, the first connector is formed with groove in the junction with the second connector, and the second connector is partially submerged in groove.
Further, housing is formed with guide part, and guide part second connector that leads moves along the first rectilinear direction being parallel to locking piece movement.
Further, electric tool also comprises installation component, the relative shell position of installation component is fixed, installation component is formed with mounting groove, locking piece is positioned at mounting groove at least partly, locking piece is formed with the first supporting surface, and mounting groove is formed with the second supporting surface, and the two ends of biased element support the first supporting surface and the second supporting surface respectively.
Further, power input comprises: gear part and installation portion, and installation portion is formed with spacing plane.
Usefulness of the present utility model is: this electric tool comprises one can the locking piece of the direct rotation of lock out motor axle, the active force that this locking piece acts on power input can adapt to the increase of clamping device pretightning force, thus avoid getting loose of the relative output precision of clamping device, and then solve the problem of clamping device and attachment inefficacy.
Accompanying drawing explanation
Figure 1 shows that the structural representation of a preferred embodiment of electric tool of the present utility model;
Figure 2 shows that the partial internal view of the electric tool in Fig. 1;
Figure 3 shows that the amplification assumption diagram of the a-quadrant in Fig. 2;
Figure 4 shows that the stereogram of the part-structure in Fig. 2;
Figure 5 shows that structure shown in Fig. 4 remove motor shaft after part explosive view.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, concrete introduction is done to the utility model.
The utility model proposes a kind of electric tool 100, in the present embodiment, this electric tool 100 can be such as drill kind tool.Figure 1 shows that the structural representation of a preferred embodiment of electric tool of the present utility model, Figure 2 shows that the partial internal view of the electric tool in Fig. 1.Shown in Fig. 1 and Fig. 2, this electric tool 100 comprises: housing 10, motor 20, output precision and gear-box.Housing 10 defines main frame portion 11 and handle portion 12, and main frame portion 11 is for holding motor 20, output precision and gear-box etc., and handle portion 12 is for supplying user's handling to operate this electric tool 100.In the present embodiment, handle portion 12 and main frame portion 11 are roughly mutually vertical, motor 20 is as the power resources of this electric tool 100, it comprises interactional stators and rotators, rotor comprises can the motor shaft 21 of outputting power, motor shaft 21 passes through the center axis thereof around passing himself, thus outputting power.
Output precision is used for outputting torsion to outside attachment.Gear-box is arranged between motor 20 and output precision, gear-box comprises the power input 31 with motor shaft 21 synchronous axial system in the rotor of motor 20, power input 31 for the rotation of motor shaft 21 is incorporated in gear-box, gear-box again by power transmission to output precision.It should be noted that power input 31 and rotor synchronous axial system refer to the angular speed of angular speed that power input 31 rotates and rotor turns identical, power input 31 is for introducing gear-box by power, in other words, this power input 31 can be the first order sun gear in gear-box.
In the present embodiment, preferably, this gear-box at least comprises primary speed-down assembly, this reduction assemblies is passed to the rotating speed of output precision for reducing motor shaft 21, under the effect of this reduction assemblies, make the output speed of output precision lower than when not this reduction assemblies time output precision output speed, the outputting torsion of output precision is improved by the reduction of output precision output speed, the torsion that in other words reduction assemblies can make motor shaft 21 export is increased and is passed to output precision after reduction assemblies, thus improve the outputting torsion of this electric tool 100, improve its load capacity.
We know, output precision needs to connect clamping device usually, and connect outside attachment by clamping device, and getting loose of the relative output precision of clamping device is easily caused when extracting tool annex, getting loose of clamping device, what can make attachment is broken into possibility, the reverse rotation of motor 20 in other words also may be impacted clamping device and clamping device is got loose, therefore in order to address this problem the pretightning force that we wish to increase the relative output precision of clamping device, the increase of pretightning force then may by gear-box back transfer torsion to motor shaft 21, thus the damage of motor 20 may be caused.For this reason, we have proposed a kind of locking device for locking electric tool 100 back transfer moment of torsion, and this locking device still can realize electric tool 100 from motor 20 to output precision unidirectional delivery torsion when the pretightning force of clamping device increases, in other words the intensity of this locking device is enough to the increase of the pretightning force adapting to clamping device, thus getting loose of clamping device can be avoided, and then avoid the fracture of attachment.
For this reason, as shown in Figures 2 to 5, electric tool 100 of the present utility model also comprises: locking piece 40, operating parts 50, intermediate module 60 and biased element 70, and wherein, namely locking piece 40, operating parts 50, intermediate module 60 and biased element 70 constitute above-described locking device.In order to coordinate with locking device, power input 31 is formed with spacing plane 312a, and this spacing plane 312a is parallel to the rotating shaft of power input 31.Further, power input 31 comprises gear part 311 and installation portion 312, gear part 311 for other gears meshing in gear-box, installation portion 312 can be fitted on motor shaft 21 by interference fit, and installation portion 312 is formed with above-described spacing plane 312a.
Locking piece 40 comprises sticking department 41 and joint portion 42, sticking department 41 is formed with a lock slots 411, lock plane 411a is formed in lock slots 411, lock plane 411a can coordinate with spacing plane 312a, and realizes the locking to power input 31 when lock plane 411a contacts with spacing plane 312a.Operating parts 50 comprises a drive division 51, intermediate module 60 comprises the first connecting portion 611 and the second connecting portion 621, wherein the first connecting portion 611 can coordinate with joint portion 42, and the second connecting portion 621 can driven part 51 drive, and operating parts 50 forms with housing 10 and is flexibly connected.Make locking piece 40 unlock power input 31 starter motor 20 simultaneously when relatively housing 10 is movable along first direction for operating parts 50 by intermediate module 60, when operating parts 50 relatively housing 10 along being broken as circuit that motor 20 powers during second direction activity and making locking piece 40 lock power input 31 by biased element 70.
Therefore say, when operating parts 50 is movable along first direction, drive division 51 drives the second connecting portion 621, second connecting portion 621 links the first connecting portion 611, at this moment because the first connecting portion 611 coordinates with joint portion 42, therefore now the first connecting portion 611 by driving the lock plane 411a of locking piece 40 to depart from spacing plane 312a with coordinating of joint portion 42, remove the locking to power input 31, thus make also to be unlocked with the motor shaft 21 of power input 31 synchronous axial system, at this moment because motor shaft 21 is unlocked, operating parts 50 can also be communicated with the circuit for motor 20 power supply simultaneously, thus starter motor 20, and when operating parts 50 is along second direction activity, operating parts 50 can be cut to the circuit that motor 20 is powered, at this moment under the effect of biased element 70, the lock plane 411a of locking piece 40 contacts with spacing plane 312a, thus locking power input 31, at this moment the motor shaft 21 of motor 20 stops operating and is locked.
In other words, locking device in the application is not when motor 20 is activated, biased element 70 can drive locking piece 40 to lock power input 31 all the time, and when needs starter motor 20, under the effect of operating parts 50, locking piece 40 could remove the locking to power input 31, and whether lock out motor 20 is mutually corresponding with motor 20 start and stop to make locking device like this, realize AutoLock feature, ensure that security performance, simultaneously because motor shaft 21 synchronous axial system of power input 31 and motor 20, therefore locking piece 40 can realize the function of axle lock by direct lock out motor axle 21, again because be provided with gear-box between output precision and power input 31, the less active force of locking piece 40 pairs of power input 31 is exaggerated by gear-box, the active force be exaggerated makes still can realize electric tool 100 from motor 20 to output precision unidirectional delivery torsion when the pretightning force of clamping device increases, in other words the intensity of this locking device is enough to the increase of the pretightning force adapting to clamping device, thus getting loose of clamping device can be avoided, and then avoid the fracture of attachment.In the utility model, whether operating parts 50 locks power input 31 for being user-operably control locking piece 40, and operating parts 50 is also for controlling the start and stop of motor 20 simultaneously, and in other words, operating parts 50 is simultaneously also as the trigger member of starter motor 20.
Concrete, operating parts 50 is arranged at handle portion 12 place, forms be slidably connected with housing 10, and first direction and second direction are the both direction that the relative housing of operating parts 50 10 is relative when sliding, and this both direction all can be thought to extend along straight line.In other words, the corresponding above-described first direction of positive and negative both direction that operating parts 50 is relative when housing 10 slides relatively and second direction.This first direction and second direction are also parallel to the rotating shaft of power input 31.Intermediate module 60 moves along the first rectilinear direction for driving locking piece 40, and the first rectilinear direction of locking piece 40 movement is perpendicular to the first direction of operating parts 50 and second direction, such locking piece 40 when moving along the first rectilinear direction can with the shortest stroke near or away from power input 31.Certainly can understand, when operating parts 50 and housing 10 forms be rotationally connected time, first direction be then the clockwise direction that rotates of operating parts 50 and counterclockwise in one, second direction be then clockwise direction and another in counter clockwise direction.
Locking piece 40 can be driven to unlock power input 31 in order to realize operating parts 50 intermediate module 60 when moving along first direction, intermediate module 60 comprises the first connector 61 and the second connector 62.One end of first connector 61 forms the first connecting portion 611, and the first connector 61 can rotate relative to housing 10, and the first direction that the rotating shaft of the first connector 61 is slided relative to housing 10 perpendicular to operating parts 50 is also perpendicular to the first rectilinear direction of locking piece 40 movement.One end of second connector 62 forms the second connecting portion 621, the other end is connected with the first connector 61, and the second connector 62 linearly can move relative to housing 10.First connector 61 is also formed with groove 612 in the junction with the second connecting portion 621, and the second connector 62 can embed in groove 612 at least partly, and further, the second connector 62 comprises the connecting rod 622 that can embed in groove 612.Like this, when the second connector 62 linearly moves, the cell wall of connecting rod 622 pairs of grooves 612 produces an active force, this active force drives the first connector 61 to rotate relative to housing 10, when the first connector 61 rotates, first connecting portion 611 acts on the joint portion 42 of locking piece 40 and drives locking piece 40 away from power input 31, thus unlocks power input 31.
In the present embodiment, the first connector 61 can rotate relative to housing 10.Certainly in other embodiments, this first connector 61 also can be a torsion spring, and one end of torsion spring forms the first connecting portion, the other end is connected with the second connector, specifically repeats no more.In addition, in the present embodiment, first connector 61 and the second connector 62 are separately formed, understandable, first connector 61 and the second connector 62 also can one-body moldedly be a connector, this connector can rotate relative to housing 10, and the two ends of this connector form the first connecting portion and the second connecting portion respectively, specifically also repeat no more.
Can linearly move to realize operating parts 50 second connector 62 when sliding along first direction, operating parts 50 comprises drive division 51, this drive division 51 comprises one and drives inclined-plane 511, second connecting portion 621 comprises can with the cambered surface driving inclined-plane 511 to contact, like this when operating parts 50 slides along first direction, drive inclined-plane 511 and the second connecting portion 621 to act on and the second connector 62 is moved.Further, housing 10 is also formed with guide part 13, guide part 13 comprises guide surface, guide surface contacts with the second connector 62 and makes the second connecting portion 621 when mobile along rectilinear movement, simultaneously also the lead direction of the second connector 62 linearly movement is parallel to the first rectilinear direction of locking piece 40 movement, and the second connector 62 can be made so more easily to drive the first connector 61 to rotate relative to housing 10.
Locking piece 40 is driven to move when rotating in order to realize the first connector 61, first connecting portion 611 comprises cylinder 611a, the joint portion 42 of locking piece 40 is formed with engagement groove 421, cylinder 611a passes engagement groove 421 and contacts with joint portion 42, joint portion 42 roughly presents L-type structure, this L-type structure comprises two, two L-type symmetrical configuration are arranged and the also above-described engagement groove 421 of formation spaced apart between two L-type structures, can be sticked in L-type structure like this when cylinder 611a passes engagement groove 421.
Preferably, electric tool 100 also comprises installation component 80, and this installation component 80 is for installing locking piece 40.Concrete, installation component 80 is fixed housing 10 position relatively, and installation component 80 inside is formed with mounting groove 81, and locking piece 40 is positioned at mounting groove 81 at least partly, and mounting groove 81 makes locking piece 40 move along the first rectilinear direction for limiting locking piece 40.Locking piece 40 is also formed with the first supporting surface 43, and mounting groove 81 is formed with the second supporting surface 811, and the two ends of biased element 70 support the first supporting surface 43 and the second supporting surface 811 respectively.In the present embodiment, this biased element 70 is preferably helical spring, and helical spring is supported in the first supporting surface 43 and the second supporting surface 811 by what compress.Like this when operating parts 50 is not triggered by user, when that is to say that operating parts 50 is positioned at original state, locking piece 40 can be driven under helical spring effect to remain on the position of locking power input 31.In other words when operating parts 50 slides along first direction, now locking piece 40 moves to the position unlocking power input 31, biased element 70 is biased simultaneously, when operating parts 50 slides along second direction, at this moment, under the effect of the biasing force of biased element 70, locking piece 40 relocks power input 31.
More than show and describe general principle of the present utility model, principal character and advantage.The technical staff of the industry should understand, and above-described embodiment does not limit the utility model in any form, the technical scheme that the mode that all employings are equal to replacement or equivalent transformation obtains, and all drops in protection domain of the present utility model.
Claims (10)
1. an electric tool, comprising: housing, motor and gear-box; Described housing holds described motor and described gear-box; Described gear-box comprises the power input with the rotor synchronous axial system of described motor; It is characterized in that: described electric tool also comprises: locking piece, operating parts, intermediate module and biased element; Described power input comprises the spacing plane that is parallel to the rotating shaft of described power input; Described locking piece comprises the lock plane and a joint portion that an energy coordinates with described spacing plane; Described operating parts comprises a drive division; Described intermediate module comprises the second connecting portion that first connecting portion coordinated with described joint portion and an energy are driven by described drive division; Described biased element supports described locking piece; Described operating parts forms with described housing and is flexibly connected, and makes described locking piece unlock described power input and start described motor when the relatively described housing of described operating parts is movable along first direction by described intermediate module; The relatively described housing of described operating parts is along the circuit being broken as described feeding electric motors during second direction activity and make described locking piece lock described power input by described biased element.
2. electric tool according to claim 1, is characterized in that, described operating parts and described housing form and be slidably connected, and described first direction and described second direction are the both direction that described operating parts relative described housing is relative when sliding.
3. electric tool according to claim 2, is characterized in that, described intermediate module makes described locking piece move along the first rectilinear direction, and the first rectilinear direction of described locking piece movement is perpendicular to described first direction and described second direction.
4. electric tool according to claim 1, is characterized in that, described first connecting portion comprises cylinder, and described joint portion is formed with engagement groove, and described cylinder passes described engagement groove and contacts with described joint portion.
5. electric tool according to claim 1, is characterized in that, described second connecting portion comprises cambered surface, and described drive division comprises and can contact the driving inclined-plane driving described second connecting portion relative to described housing movement with described cambered surface.
6. electric tool according to claim 3, it is characterized in that, described intermediate module comprises one can the first connector of relatively described housing into rotation, described one end stating the first connector forms described first connecting portion, and the rotating shaft of described first connector is perpendicular to the first direction of the relatively described housing activity of described operating parts; Described intermediate module also comprises one can relative to the second connector of described housing linearly movement, and one end of described second connector forms described second connecting portion, the other end is connected with the first connector.
7. electric tool according to claim 6, is characterized in that, described first connector is formed with groove in the junction with described second connector, and described second connector is partially submerged in described groove.
8. electric tool according to claim 6, is characterized in that, described housing is formed with guide part, and described second connector of described guide part guiding moves along the first rectilinear direction being parallel to described locking piece movement.
9. electric tool according to claim 1, it is characterized in that, described electric tool also comprises installation component, the relatively described shell position of described installation component is fixed, described installation component is formed with mounting groove, and described locking piece is positioned at described mounting groove at least partly, and described locking piece is formed with the first supporting surface, described mounting groove is formed with the second supporting surface, and the two ends of described biased element support described first supporting surface and described second supporting surface respectively.
10. the electric tool according to claim 1 to 9 any one, is characterized in that, described power input comprises: gear part and installation portion, and described installation portion is formed with described spacing plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520370001.5U CN204800592U (en) | 2015-06-01 | 2015-06-01 | Electric tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520370001.5U CN204800592U (en) | 2015-06-01 | 2015-06-01 | Electric tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204800592U true CN204800592U (en) | 2015-11-25 |
Family
ID=54585482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520370001.5U Expired - Fee Related CN204800592U (en) | 2015-06-01 | 2015-06-01 | Electric tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204800592U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109590545A (en) * | 2017-09-30 | 2019-04-09 | 南京德朔实业有限公司 | Clamping device for clamping working accessory and electric tool |
-
2015
- 2015-06-01 CN CN201520370001.5U patent/CN204800592U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109590545A (en) * | 2017-09-30 | 2019-04-09 | 南京德朔实业有限公司 | Clamping device for clamping working accessory and electric tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 211106 No. 529, 159, Jiangjun Avenue, Jiangning District, Nanjing, Jiangsu Province Patentee after: Nanjing Quanfeng Technology Co.,Ltd. Address before: 211106, No. 159, general road, Jiangning economic and Technological Development Zone, Nanjing, Jiangsu Patentee before: NANJING CHERVON INDUSTRY Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151125 |