CN201534325U - Multi-functional electric hand tool - Google Patents

Multi-functional electric hand tool Download PDF

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Publication number
CN201534325U
CN201534325U CN2009201251891U CN200920125189U CN201534325U CN 201534325 U CN201534325 U CN 201534325U CN 2009201251891 U CN2009201251891 U CN 2009201251891U CN 200920125189 U CN200920125189 U CN 200920125189U CN 201534325 U CN201534325 U CN 201534325U
Authority
CN
China
Prior art keywords
driving shaft
motor
tool
shaft
shell
Prior art date
Application number
CN2009201251891U
Other languages
Chinese (zh)
Inventor
王亮
Original Assignee
王亮
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 王亮 filed Critical 王亮
Priority to CN2009201251891U priority Critical patent/CN201534325U/en
Application granted granted Critical
Publication of CN201534325U publication Critical patent/CN201534325U/en

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Abstract

The utility model relates to a multi-functional electric hand tool. The multi-functional electric hand tool comprises a casing (1), a motor (2), a driving shaft (3) and a tool part (4), wherein the motor (2) and the driving shaft (3) are installed in the casing; the tool part (4) is connected at the end part of the driving shaft (3); an opening (11) for allowing the driving shaft to be exposed is formed at the front end of the casing; and the multi-functional electric hand tool is characterized in that the tool part is detachably connected at the end part of the driving shaft, the driving shaft is limited in the casing (1) and can rotate around the axial line of the driving shaft, and an output shaft (21) of the motor drives the driving shaft (3) to make reciprocating rotation around the own axial line through an eccentric transmission mechanism within a certain angle range. Since the driving shaft for connecting the tool part is driven by the motor to make reciprocating rotation around the own axial line within a certain angle range, the electric hand tool is particularly suitable for various tool parts, for example, circular saw blades or sand paper; and in addition, the tool part is detachably connected at the end part of the driving shaft, and therefore, the electric hand tool can be matched with various different tool parts such as circular saw blades, sand paper, panel saw blades and the like, and can realize multiple applications of cutting, burnishing and the like.

Description

The multifunctional motor-driven hand-held tool

Technical field

The utility model belongs to the technical field of hand-held tool, relates in particular to a kind of multifunctional motor-driven hand-held tool.

Background technology

Existing its structure of electronic hand-held tool generally comprises shell, be provided with battery, motor in the shell, the output shaft of motor drives the drive rod linear reciprocating motion by transmission mechanism, the top of drive rod is connected with various tool spare, what tool piece was commonly used is saw blade, and saw blade is realized cutting function by the reciprocal drive of drive rod.

As a patent No. is a kind of electric reciprocating saw so the Chinese utility model patent " cam driving electric reciprocating saw " of ZL01244780.3 (notification number is CN2482473Y) has disclosed, comprise housing, motor, reducing gear, the work fork, saw blade, motor is arranged at the housing rear end, the pinion of reducing gear is set on the extended rotating shaft of electric machine main shaft, gear wheel cooperates with pinion and is arranged on the Large Gear Shaft During, the reciprocating cam of driving work fork is set on the Large Gear Shaft During, cam path is set on the cam, drive rod is connected on the work fork, the lower end of drive rod is arranged in the cam path, flexibly connects.The utility model compared with prior art, its remarkable advantage is: the direction of the driving force that drive rod provides is in full accord with the direction of motion of work fork, actuating arm top moving linearly, wearing and tearing and vibrate little, and simple in structure, processing and installation operate steadily easily, stuck phenomenon can not occur, the work fork can not rotate.

As a patent No. is that a kind of power saws comprised the Chinese utility model patent " a kind of power saws " of ZL200720049572.4 (notification number is CN201012413Y) had disclosed: CD-ROM drive motor, drive the gear train motion that is connected with saw blade, it is characterized in that: CD-ROM drive motor connects the two-stage planet group and slows down, described planetary gear and one is with eccentric power disk to be connected, its eccentric wheel connects connecting rod, connecting rod is connected with the slide of saw blade, and described slide can move back and forth in runner frame.

All there is the defective of function singleness in above-mentioned hand-held tool, and the function of transmission mechanism is for driving the drive rod linear reciprocating motion, and this transmission mechanism only is fit to drive this tool piece work of straight blade, and is not suitable for driving as tool piece work such as saw blade or sand paper.

Summary of the invention

Technical problem to be solved in the utility model is the multifunctional motor-driven hand-held tool that a kind of suitable drive such as tool piece work such as saw blade or sand paper are provided at above-mentioned prior art present situation.

The utility model solves the problems of the technologies described above the technical scheme that is adopted: a kind of multifunctional motor-driven hand-held tool, include shell, in the enclosure motor and driving shaft are installed, are connected the tool piece of driveshaft end, the front end of described shell has the opening that exposes for driving shaft, it is characterized in that: described tool piece removably is connected the end of driving shaft, described driving shaft is spacing in the enclosure also can be around self axis rotation, and the output shaft of described motor drives driving shaft around self axis back and forth rotation in the certain angle scope by eccentric drive mechanism.

Above-mentioned eccentric drive mechanism comprises eccentric wheel, oscillating deck, described eccentric wheel also can rotate with output shaft with the output shaft of motor is continuous, the axis of described oscillating deck and the axis normal of motor output shaft, the front portion of oscillating deck is set on the driving shaft, and the reciprocally swinging of oscillating deck can drive driving shaft around self axially back and forth rotation in the certain angle scope, the rear portion of oscillating deck has a breach that matches with described eccentric wheel, this eccentric wheel inserts in the described breach, and eccentric energy of rotation drives the oscillating deck reciprocally swinging.It is few that this eccentric drive mechanism relates to parts, and it is easy to assembly, when eccentric wheel rotates under driven by motor, cooperating of breach by eccentric wheel and oscillating deck rear portion, eccentric rotation can drive back and forth swing fast about oscillating deck, and then drive driving shaft around self axis back and forth rotation in the certain angle scope, finally the tool piece that is connected with driving shaft back and forth rotates, to play the effect of processing work.

For make driving shaft can be better around himself axis rotation, above-mentioned driving shaft is installed in the enclosure by bearing.

Being connected with one on the output shaft of above-mentioned motor can be with the output shaft rotating drive shafts, and this power transmission shaft is installed in the enclosure by bearing, and described eccentric wheel is installed on this power transmission shaft and can rotates with power transmission shaft.Because the output shaft of motor is to be structure as a whole with motor, its profile is certain, so motor output shaft links to each other with eccentric wheel by power transmission shaft, can simplify mounting structure, need process separately with the supporting power transmission shaft of motor output shaft and eccentric wheel to get final product.

Above-mentioned motor provides electric power by the lithium battery of being located at the shell afterbody.Can certainly be common electric power storage battery, can also be to link to each other with external power supply by power line.

For with the quick firm fixation of tool piece on driving shaft, above-mentioned driving shaft lower end has connecting portion, has a screwed hole on the lower surface of this connecting portion, and the lower surface of connecting portion is provided with a plurality of down protruding reference columns.During installation, only need on corresponding tool spare end face, to have and the reference column positioning hole corresponding, make reference column pass locating hole after the installation, passing the tool piece end face with screw again is threaded with screwed hole on the driving shaft lower surface, so just, be connected on the driving shaft tool piece is firm, tool piece is installed fast simple.

Above-mentioned reference column has eight, is distributed on around the screwed hole, like this can 360 degree adjustment means part positions, to adjust the working face of tool piece.

Compared with prior art, advantage of the present utility model is: since the driving shaft that connects for tool piece under driven by motor around self axis back and forth rotation in the certain angle scope, so this electronic hand-held tool is particularly suitable for the use as tool pieces such as saw blade or sand paper; There is tool piece removably to be connected the end of driving shaft again, therefore can cooperates multiple different tool piece,, can realize multiple application such as cutting, polishing as saw blade, sand paper, bladed saw sheet or the like.

Description of drawings

Fig. 1 is the perspective view (tool piece is a saw blade) of the utility model embodiment;

Fig. 2 is the structure cutaway view (tool piece is a saw blade) of the utility model embodiment;

Fig. 3 removes perspective view (tool piece does not show) behind half housing for the utility model embodiment;

Fig. 4 is the stereochemical structure broken away view (tool piece is a saw blade) of the utility model embodiment;

Fig. 5 is the three-dimensional exploded view (tool piece is the bladed saw sheet) of eccentric drive mechanism among the utility model embodiment;

Fig. 6 is the perspective view (tool piece is the bladed saw sheet) of the utility model embodiment;

Fig. 7 is the structure cutaway view (tool piece is a sand paper) of the utility model embodiment.

The specific embodiment

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.

Shown in Fig. 1~7, be a preferred embodiment of the present utility model.

A kind of multifunctional motor-driven hand-held tool includes shell 1, this shell 1 by about half housing be formed by connecting by screw, the monnolithic case of shell 1 is roughly L shaped.

Lithium battery 10, motor 2, driving shaft 3, tool piece 4 are installed in the shell 1, and lithium battery 10 is located at the afterbody of shell 1 and electric power is provided for motor 2, and housing 1 outside also is provided with the circuit turn-on whether switch 13 between control lithium battery 10 and the motor 2.

Tool piece 4 removably is connected the end of driving shaft 3, specifically can adopt following structure to connect, has connecting portion 31 in driving shaft 3 lower ends, have a screwed hole 32 on the lower surface of this connecting portion 31, and the lower surface of connecting portion 31 is provided with eight protruding reference columns 33 down, is distributed on around the screwed hole 32.During installation, only need on corresponding tool spare 4 end faces, to have and reference column 33 positioning hole corresponding 41, make reference column 33 pass locating hole 41 after the installation, pass the tool piece end face with screw 12 again and be threaded, so just with tool piece 4 firm being connected on the driving shaft 3 with screwed hole 32 on connecting portion 31 lower surfaces.Tool piece 4 can be a saw blade, shown in Fig. 1~4, also can be the bladed saw sheet, shown in Fig. 5,6, can also be sand paper, as shown in Figure 7.

Driving shaft 3 is installed in the shell 1 by bearing 7, and driving shaft 3 also can be around self axis rotation, front end at shell 1 has the opening 11 that exposes for driving shaft 3, and the output shaft 21 of motor drives driving shaft 3 around self axis back and forth rotation in the certain angle scope by eccentric drive mechanism.

As shown in Figure 5, eccentric drive mechanism comprises eccentric wheel 5, oscillating deck 6, power transmission shaft 8, power transmission shaft 8 is connected on the output shaft 21 of motor 2 and can be with output shaft 21 rotation, and power transmission shaft 8 is installed in the shell 1 by bearing 9, eccentric wheel 5 is installed on this power transmission shaft 8 and can rotates with power transmission shaft 8, eccentric wheel 5 can be cam, oscillating deck 6 is positioned at shell 1, the axis normal of the axis of oscillating deck 6 and motor output shaft 21, the front portion of oscillating deck 6 is set on the driving shaft 3, and with driving shaft 3 close-fittings, so the reciprocally swinging of oscillating deck 6 can drive driving shaft 3 around self axially back and forth rotation in the certain angle scope, certainly also can cooperate between oscillating deck 6 and the driving shaft 3 and realize this purpose by square hole, the rear portion of oscillating deck 6 has a breach 61 that matches with described eccentric wheel 5, this eccentric wheel 5 inserts in the described breach 61, and the side face of eccentric wheel 5 can be touched with the inwall of breach 61, so the energy of rotation of eccentric wheel 5 drives oscillating deck 6 reciprocally swingings.

Operation principle of the present utility model and process are as follows:

Select the proper tools part to be installed on the connecting portion of driving shaft, during installation, to fit with connecting portion 31 lower surfaces on corresponding tool spare 4 end faces, reference column 33 on the connecting portion passes the locating hole 41 on the tool piece, pass tool piece 4 end faces with screw 12 again and be threaded, so just with tool piece 4 firm being connected on the driving shaft 3 with screwed hole 32 on the driving shaft lower surface;

Connect switch, lithium battery 10 gives motor 2 energisings, motor 2 drives eccentric wheel 5 rotations, inwall touching by eccentric wheel 5 side faces and oscillating deck rear portion breach 61, make oscillating deck 6 can be within the specific limits about back and forth swing fast, and then drive driving shaft 3 around self axis back and forth rotation in the certain angle scope, finally the tool piece 4 that is connected with driving shaft 3 back and forth rotates, to play the effect of processing work.

According to multiple different annex, can realize multiple application such as cutting, polishing, can sawing and cutting timber, plastics, plasterboard, nonferrous metal and fixture (for example nail, clip etc.).Also can process soft nogging, dry grind and scraping on little area.This instrument is particularly suitable for the marginal operation at workpiece, and cuts flat work.

Claims (7)

1. multifunctional motor-driven hand-held tool, include shell (1), be installed in motor (2) and driving shaft (3) in the shell (1), be connected the tool piece (4) of driving shaft (3) end, the front end of described shell (1) has the opening (11) that exposes for driving shaft (3), it is characterized in that: described tool piece (4) removably is connected the end of driving shaft (3), described driving shaft (3) is spacing also can be around self axis rotation in shell (1), and the output shaft of described motor (21) drives driving shaft (3) around self axis back and forth rotation in the certain angle scope by eccentric drive mechanism.
2. multifunctional motor-driven hand-held tool according to claim 1, it is characterized in that: described eccentric drive mechanism comprises eccentric wheel (5), oscillating deck (6), described eccentric wheel (5) also can rotate with output shaft with the output shaft (21) of motor is continuous, the axis normal of the axis of described oscillating deck (6) and motor output shaft (21), the front portion of oscillating deck (6) is set on the driving shaft (3), and the reciprocally swinging of oscillating deck (6) can drive driving shaft (3) around self axially back and forth rotation in the certain angle scope, the rear portion of oscillating deck (6) has a breach (61) that matches with described eccentric wheel (5), this eccentric wheel (5) inserts in the described breach (61), and the energy of rotation of eccentric wheel (5) drives oscillating deck (6) reciprocally swinging.
3. multifunctional motor-driven hand-held tool according to claim 2 is characterized in that: described driving shaft (3) is installed in the shell (1) by bearing (7).
4. multifunctional motor-driven hand-held tool according to claim 2, it is characterized in that: being connected with one on the output shaft (21) of described motor (2) can be with output shaft (21) rotating drive shafts (8), this power transmission shaft (8) is installed in the shell (1) by bearing (9), and described eccentric wheel (5) is installed in this power transmission shaft (8) and goes up also and can rotate with power transmission shaft (8).
5. multifunctional motor-driven hand-held tool according to claim 1 is characterized in that: described motor (2) provides electric power by the lithium battery of being located at the shell afterbody (10).
6. according to the described multifunctional motor-driven hand-held tool of arbitrary claim in the claim 1~5, it is characterized in that: described driving shaft (3) lower end has connecting portion (31), have a screwed hole (32) on the lower surface of this connecting portion (31), and the lower surface of connecting portion (31) is provided with a plurality of protruding reference columns (33) down.
7. multifunctional motor-driven hand-held tool according to claim 6 is characterized in that: described reference column (33) has eight, is distributed on screwed hole (32) all around.
CN2009201251891U 2009-07-16 2009-07-16 Multi-functional electric hand tool CN201534325U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009201251891U CN201534325U (en) 2009-07-16 2009-07-16 Multi-functional electric hand tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009201251891U CN201534325U (en) 2009-07-16 2009-07-16 Multi-functional electric hand tool

Publications (1)

Publication Number Publication Date
CN201534325U true CN201534325U (en) 2010-07-28

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Application Number Title Priority Date Filing Date
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012041211A1 (en) * 2010-10-01 2012-04-05 苏州宝时得电动工具有限公司 Oscillating power tool
CN102430799A (en) * 2011-09-08 2012-05-02 中国人民解放军第四军医大学 Multipurpose miniature electric saw for electronics
CN102441871A (en) * 2010-10-01 2012-05-09 苏州宝时得电动工具有限公司 Accessory and power tool
CN103240713A (en) * 2012-02-06 2013-08-14 苏州宝时得电动工具有限公司 Hand-held electric tool
CN104249340A (en) * 2013-06-27 2014-12-31 苏州宝时得电动工具有限公司 Swinging power tool

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012041211A1 (en) * 2010-10-01 2012-04-05 苏州宝时得电动工具有限公司 Oscillating power tool
CN102441871A (en) * 2010-10-01 2012-05-09 苏州宝时得电动工具有限公司 Accessory and power tool
CN102441871B (en) * 2010-10-01 2014-06-04 苏州宝时得电动工具有限公司 Accessory and power tool
CN102430799A (en) * 2011-09-08 2012-05-02 中国人民解放军第四军医大学 Multipurpose miniature electric saw for electronics
CN103240713A (en) * 2012-02-06 2013-08-14 苏州宝时得电动工具有限公司 Hand-held electric tool
CN104249340A (en) * 2013-06-27 2014-12-31 苏州宝时得电动工具有限公司 Swinging power tool
CN104249340B (en) * 2013-06-27 2017-05-31 苏州宝时得电动工具有限公司 Swing-type power tool

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Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
EE01 Entry into force of recordation of patent licensing contract

Assignee: Ningbo Liangye Electric Appliance Co., Ltd.

Assignor: Wang Liang

Contract record no.: 2010330001379

Denomination of utility model: Multi-functional electric hand tool

Granted publication date: 20100728

License type: Exclusive License

Record date: 20100719

CX01 Expiry of patent term

Granted publication date: 20100728

CX01 Expiry of patent term