CN201109092Y - Power tool hammering transmission arrangement capable of preventing locking of bolt or screw cap - Google Patents
Power tool hammering transmission arrangement capable of preventing locking of bolt or screw cap Download PDFInfo
- Publication number
- CN201109092Y CN201109092Y CNU2007201947146U CN200720194714U CN201109092Y CN 201109092 Y CN201109092 Y CN 201109092Y CN U2007201947146 U CNU2007201947146 U CN U2007201947146U CN 200720194714 U CN200720194714 U CN 200720194714U CN 201109092 Y CN201109092 Y CN 201109092Y
- Authority
- CN
- China
- Prior art keywords
- hammering
- frame
- bolt
- power tool
- hammer
- 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
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The utility model relates to a hammering transmission mechanism of a power tool, which can prevent a bolt or a screw cap from tightly locking, and the hammering transmission mechanism of the power tool is provided with a shell, a rotor which is arranged in the shell in a containing way, a hammering group which is combined with the rotor, and a transmission shaft. The hammering group is provided with a hammering frame, at least a movable hammer which is arranged in the hammering frame in a combination way, and two hammering tips which penetrate the hammering frame and recline with each movable hammer. A punch hole perforates at the central part of each movable hammer, and the punch hole is provided with a fixture block and a flange inwards in a convex way, wherein, the fixture block and the flange are arranged in the punch hole symmetrically, and the volume of the fixture block is bigger than that of the flange. One end of the transmission shaft extends outside the shell, and the other end is inserted between the hammering frame and the movable hammer and is provided with an obstructive block, thus, the hammering transmission mechanism of the power tool, which can prevent a bolt or a screw cap from tightly locking, is formed.
Description
Technical field
The utility model relates to a kind of power tool and beats drive mechanism, refers to a kind of power tool hammering drive mechanism that prevents bolt or nut locking especially, and it belongs to the technical field of power tool.
Background technology
Power tool can be used to elements such as bolt or nut are carried out that pine moves back or fastening action, and is quite convenient and fast, therefore the application of such power tool is very wide at present;
Wherein, existing two hammering type (or single hammering type) power tool is used to assemble vehicle tyre, on the whole its kenel is provided with casing with handles, be located in the rotor in the casing, hammering group that combines with rotor and the power transmission shaft that combines with the hammering group, please consult shown in Figure 9 simultaneously, this hammering group 50 is provided with beats frame 51, two are arranged in the activity hammer 52 of beating frame 51 inside, two pass hammering frame 51 perisporiums and hammer the hammering tip 53 that 52 sides recline mutually into shape with activity, wherein each movable hammer 52 inside is equipped with and beats the perforation 521 that frame 51 is connected, and in the perforation 52 in to the interior fixture block 522 that convexes with the two-phase symmetry, and that an end of power transmission shaft 60 passes casing is outer combining with bolt or nut, and the other end penetrates and beats frame 51 and this end periphery and be provided with two and two activities and hammer the clipping block 61 that each fixture block 522 of 52 fastens into shape;
Existing two hammering type power tool is when using, (its type of drive is a known technology mainly to make rotor generation forward or backwards rotation by gas-powered, and it is irrelevant with this case) so do not give unnecessary details, and then when drive beating frame 51 and rotating forward or backwards, beat frame 51 this moment and wherein one beat the tip 53 and can force in a wherein movable hammer 52, and then fasten with the fixture block 522 of these corresponding movable hammer 52 inner edges and power transmission shaft 60 relative clipping blocks 61, drive power transmission shaft 60 and do rotation forward or backwards, pine moves back or fastening action so that carry out for bolt or nut, because two fixture blocks 522 of each movable hammer 52 is big or small identical, therefore when just changeing or reversing, two fixture blocks 522 are identical with the clip power of relative clipping block 61, so have identical just transferring to firmly and reverse effect power when carrying out fastening or loose moving back for nut or bolt;
Yet, the user generally locks for bolt or nut by just changeing (or reverse) active force, for example: during the maintenance vehicle tire for lock screw or nut locks or pine when moving back, can use by selection power tool identical with lock screw or nut or big pressure poundage traditionally, and for clamping screw or nut can securely be combined with workpiece, mostly can be after clamping screw or nut locking, can repeatedly beat for clamping screw or nut by power transmission shaft again and lock, therefore easily clamping screw or nut are produced quality harmful effect and damage, and then the pine that influences clamping screw or nut moves back and the normal use of the bolt safety of vehicle tyre, the method of this kind clamping screw does not meet safe regulation in fact, particularly do not meet of the requirement of American-European advanced country, the part improved is really arranged for the bolt safe handling.
The utility model content
The utility model is in view of existing two hammering type power tool structures and deficiency of using and disappearance, provide a kind of power tool of bolt or nut locking that prevents to beat drive mechanism, it can effectively avoid producing quality harmful effect and damage for bolt or nut, reaches the purpose of safe handling vehicle bolt and nut.
For solving the problems of the technologies described above, the technical scheme that the utility model adopted is: provide a kind of power tool of bolt or nut locking that prevents to beat drive mechanism, it includes housing, rotor, hammering group and power transmission shaft, wherein:
This housing is provided with room and Yu Yiduan forms handle;
Rotor is located in housing near in the room of handle and convex with driving shaft;
This hammering group combines with rotor and is located in the room of housing, it includes the hammering frame, at least one is mounted on the activity hammer of beating in the frame and two and is placed through the hammering tip of beating frame and reclining mutually with each movable hammer, the center section part of this hammering frame is provided with accommodation chamber, and be provided with the combined hole that combines with rotor drive shaft near an end of rotor, the other end of beating frame then is equipped with the through hole that is connected with combined hole, each movable hammer is placed in the accommodation chamber of beating frame, each activity is hammered into shape in central part and axially is equipped with perforation, in the perforation introversion, convex with fixture block and flange, wherein fixture block and flange are symmetrically and are located in the perforation, and the volume of fixture block is greater than the volume of flange; And
One end of power transmission shaft is stretched and is set out outside the housing, and other end via through holes and stretch into and beat between frame and the movable hammer, and power transmission shaft is provided with the clipping block that can lean with each movable hammer fixture block and flange in the periphery of this end.
Preferably, this hammering group is provided with two activity hammers, and the interval dislocation is provided with all right one way or the other clipping block that leans with two movable hammer fixture blocks and flange on the periphery of beating frame and movable this end of hammer and power transmission shaft stretches into.
Preferably, this hammering frame respectively is provided with elongated slot at the two side inner surface between between combined hole and through hole, and be equipped with two fixing holes that are connected with two elongated slots respectively on the end face of combined hole being provided with, and should activity the outer surface of hammer be provided with and the corresponding groove of elongated slot, and be provided with chute in a side that differs from groove, in addition two beat the tips through beating frame fixing hole and be arranged between the grooves and chute of elongated slot and two movable hammers, and then two movable hammers are hubbed in the accommodation chamber of beating frame.
Preferably, the outer surface of this driving shaft is equipped with in conjunction with tooth, and beat frame in the inner surface of this combined hole be provided with combine with driving shaft that tooth fastens in conjunction with tooth.
Preferably, this each movable hammer is for having the semicircle cylindrical shell of circular arc periphery.
Compared with prior art the beneficial effect that the utility model had is: the mode that power tool of the present utility model is provided with by movable hammer fixture block, because of power tool when rotor just changes, the clipping block of power transmission shaft only can with the less flange friction of volume against, the strength of its driving is little, the torsion poundage that power transmission shaft is produced is not high, therefore when operating for the nut of vehicle tyre or bolt, nut or bolt slightly can only be locked, and can't reach standard torsion poundage with the locking of nut or bolt, this moment must be again with manually with the standard torque spanner nut or bolt being locked to the torsion poundage that setting can be locked, and the bigger fixture block of volume can fasten with the clipping block of power transmission shaft when reversing, the torsion poundage that power transmission shaft is produced reaches the standard torsion poundage that pine moves back bolt or nut, just transferring of power tool locking nut or bolt exerted oneself move back the reverse power output of nut or bolt less than pine, prevent that power tool from can produce the phenomenon of damaging for nut or bolt etc., with the security of guaranteeing that vehicle tyre bolt and nut use, and the security regulations of match operation.
Description of drawings
Fig. 1 is the stereo appearance figure of the utility model power tool;
Fig. 2 is the sectional perspective exploded view of the utility model power tool;
Operation Profile figure when Fig. 3 is just changeing for the utility model power tool;
Another Operation Profile figure when Fig. 4 is just changeing for the utility model power tool;
Operation Profile figure when Fig. 5 reverses for the utility model power tool;
Another Operation Profile figure when Fig. 6 reverses for the utility model power tool;
Fig. 7 is the sectional perspective exploded view of another embodiment of the utility model power tool;
Fig. 8 is the utility model power tool sectional perspective exploded view of an embodiment again;
Fig. 9 is the generalized section of the hammering group of existing power tool.
Among the figure:
10 housings, 11 handles, 20 rotors, 21 driving shafts, 30 hammering groups 31 are beaten the frame 311 accommodation chambers 312 combined holes 313 through holes 314 elongated slots 315 fixing holes 32 movable hammer 321 perforation 322 fixture blocks 323 grooves 324 chutes 325 flanges 33 hammering tips 40 power transmission shafts 41 clipping blocks 50 hammering groups 51 and are beaten the frame 52 movable hammer 521 perforation 522 fixture blocks 53 hammering tips 60 power transmission shafts 61 clipping blocks
The specific embodiment
Be energy detail knowledge technical characterictic of the present utility model and practical effect, and can implement according to the content of specification, now further with preferred embodiment as shown in drawings, be described in detail as follows, see also Figure 1 and Figure 2, the utility model can prevent the power tool hammering drive mechanism of bolt or nut locking, and it includes housing 10, rotor 20, hammering group 30 and power transmission shaft 40, wherein:
This housing 10 is provided with the room of hollow, and forms handle 11 downwards in an end of housing 10;
Rotor 20 be located in housing 10 near in the room of handles 11 and an end convex with driving shaft 21, the outer surface of this driving shaft 21 is equipped with in conjunction with tooth;
This hammering group 30 combines with rotor 20 and is located in the room of housing 10, it includes beats frame 31, the two activities hammers 32 and two that are mounted in the hammering frame 31 are placed through hammering frame 31 and hammer the 32 hammering tips 33 that recline mutually into shape with two activities, the center section part of this hammering frame 31 is provided with accommodation chamber 311, and be provided with the combined hole 312 that combines with rotor 20 driving shafts 21 near an end of rotor 20, these combined hole 312 inner surfaces be provided with combine with driving shaft 21 that tooth fastens in conjunction with tooth, the other end of beating frame 31 then is equipped with the through hole 313 that is connected with combined hole 312, this hammering frame 31 respectively is provided with elongated slot 314 at the two side inner surface between 313 of combined hole 312 and through holes, and is equipped with two fixing holes 315 that are connected with two elongated slots 314 respectively on the end face that is provided with combined hole 312;
Two movable hammers 32 are placed in the accommodation chamber 311 of beating frame 31, each movable hammer 32 is for having the semicircle cylindrical shell of circular arc periphery, axially be equipped with perforation 321 in central part, movable hammer 32 in perforation 321 to interior fixture block 322 and the flange 325 of convexing with, wherein fixture block 322 is with flange 325 and is located at symmetrically in the perforation 321, and the volume of fixture block 322 is greater than the volume of flange 325, the outer surface of this activity hammer 32 is provided with and elongated slot 314 corresponding grooves 323, and is provided with chute 324 in a side that differs from groove 323;
And two beat the tips 33 through beating frame 31 fixing hole 315 and be arranged in 324 of the groove 323 of elongated slot 314 and two movable hammers 32 and chutes, and then two movable hammers 32 are hubbed in the accommodation chamber 311 of beating frame 31; And
One end of power transmission shaft 40 is stretched and is set out outside the housing 10, and other end via through holes 313 and stretch into and beat between frame 31 and the two movable hammers 32, power transmission shaft 40 on the periphery of this end at interval dislocation be provided with all right one way or the other clipping block 41 that leans with two movable hammer 32 fixture blocks 322 and flange 325.
When loading and unloading for vehicle tyre by power tool of the present utility model, when desire locks to nut or bolt, see also as shown in Figures 3 and 4, its rotor 20 can produce just changeing and driving beats frame 31 rotations, beat a side that the tip 33 be offset to movable hammer 32 chutes 324 because gravity can make this moment, since the clipping block 41 of power transmission shaft 40 can and flange 325 rub mutually against, can't produce bigger outputting torsion poundage because the volume of flange 325 is less, therefore can't hammer the natural rotating force of rotor 20 into shape 32 through activity by the hammering frame 31 and the hammering tip 33 effectively and be passed to power transmission shaft 40, even therefore repeatedly driving rotor 20 drives power transmission shaft 40, still can't there be enough torsion poundages that bolt or nut are locked on the vehicle tyre, then need to set correct torsion poundage bolt or nut to be locked on the vehicle tyre by the standard torque spanner with manual type this moment again, can avoid power tool to produce the phenomenon of damaging for nut or bolt etc. thus, with the security of guaranteeing that vehicle tyre nut and bolt use because of the improper meeting of mode of operation;
Moreover, when desire is carried out pine when moving back to nut or bolt, see also as Fig. 5 and shown in Figure 6, when rotor 20 is done counter-rotating, this hammering tip 33 can be offset to the opposite side of movable hammer 32 chutes 324, because the clipping block 41 of power transmission shaft 40 can fasten with the fixture block 322 of two movable hammers 32, therefore the reverse power of rotor 20 can be passed to power transmission shaft 40 by beating frame 31 and beating the tip 33 through activity hammer 32, power transmission shaft 40 is produced reverse, and then bolt or nut pine from the vehicle tyre is moved back.
Therefore, take shape in the movable 32 symmetrical positions of hammering into shape by fixture block 322 and flange 325, and the volume of flange 325 is less than the mode of fixture block 322, make movable hammer 32 when just changeing, produce lower outputting torsion poundage to power transmission shaft 40, and then allow the power tool of this architectural feature in when operation, can prevent effectively that the generation of nut or bolt is locked immediately, more can prevent to produce the phenomenon of damaging, and then meet the security regulations of vehicle tyre nut and bolt locking because of improper operation makes nut or bolt.
In addition, can be with reference to as shown in Figure 7, the utility model also can only use by activity hammer 32A, can when just changeing, produce lower outputting torsion poundage equally to power transmission shaft 40A, and then allow the power tool of this architectural feature in when operation, can prevent effectively that the generation of nut or bolt is locked immediately, more can prevent to produce the phenomenon of damaging, to meet the security regulations of vehicle tyre nut and bolt locking because of improper operation makes nut or bolt.
Moreover, as shown in Figure 8, when the hand of spiral of nut or bolt when oppositely being provided with, the utility model also can oppositely be installed two movable hammers 32, fixture block 322 is exchanged mutually with the position of flange 325, thus, when reverse nut and bolt during in locking, the counter-rotating locking torsion poundage that this power tool is provided by flange 325 can be less than the just commentaries on classics pine back twist power poundage of fixture block 322, can prevent that also nut or bolt from producing the phenomenon that is locked immediately and damages, and meets the security regulations of vehicle tyre nut and bolt locking equally.
Claims (7)
1, a kind of power tool of bolt or nut locking that prevents is beaten drive mechanism, and it includes housing, rotor, hammering group and power transmission shaft, it is characterized in that:
This housing is provided with room and Yu Yiduan forms handle;
Rotor is located in housing near in the room of handle and convex with driving shaft;
This hammering group combines with rotor and is located in the room of housing, it includes the hammering frame, at least one is mounted on the activity hammer of beating in the frame and two and is placed through the hammering tip of beating frame and reclining mutually with each movable hammer, the center section part of this hammering frame is provided with accommodation chamber, and be provided with the combined hole that combines with rotor drive shaft near an end of rotor, the other end of beating frame then is equipped with the through hole that is connected with combined hole, each movable hammer is placed in the accommodation chamber of beating frame, each activity is hammered into shape in central part and axially is equipped with perforation, in the perforation introversion, convex with fixture block and flange, wherein fixture block and flange are symmetrically and are located in the perforation, and the volume of fixture block is greater than the volume of flange; And
One end of power transmission shaft is stretched and is set out outside the housing, and other end via through holes and stretch into and beat between frame and the movable hammer, and power transmission shaft is provided with the clipping block that can lean with each movable hammer fixture block and flange in the periphery of this end.
2, the power tool of bolt or nut locking that prevents according to claim 1 is beaten drive mechanism, it is characterized in that, this hammering group is provided with two activity hammers, and the interval dislocation is provided with all right one way or the other clipping block that leans with two movable hammer fixture blocks and flange on the periphery of beating frame and movable this end of hammer and power transmission shaft stretches into.
3, the power tool of bolt or nut locking that prevents according to claim 1 and 2 is beaten drive mechanism, it is characterized in that, this hammering frame respectively is provided with elongated slot at the two side inner surface between between combined hole and through hole, and be equipped with two fixing holes that are connected with two elongated slots respectively on the end face of combined hole being provided with, and should activity the outer surface of hammer be provided with and the corresponding groove of elongated slot, and be provided with chute in a side that differs from groove, in addition two beat the tips through beating frame fixing hole and be arranged between the grooves and chute of elongated slot and two movable hammers, and then two movable hammers are hubbed in the accommodation chamber of beating frame.
4, the power tool of bolt or nut locking that prevents according to claim 3 is beaten drive mechanism, it is characterized in that, the outer surface of this driving shaft is equipped with in conjunction with tooth, and beat frame in the inner surface of this combined hole be provided with combine with driving shaft that tooth fastens in conjunction with tooth.
5, the power tool of bolt or nut locking that prevents according to claim 4 is beaten drive mechanism, it is characterized in that, this each movable hammer is for having the semicircle cylindrical shell of circular arc periphery.
6, the power tool of bolt or nut locking that prevents according to claim 1 is beaten drive mechanism, it is characterized in that, the outer surface of this driving shaft is equipped with in conjunction with tooth, and beat frame in the inner surface of this combined hole be provided with combine with driving shaft that tooth fastens in conjunction with tooth.
7, the power tool of bolt or nut locking that prevents according to claim 1 is beaten drive mechanism, it is characterized in that, this each movable hammer is for having the semicircle cylindrical shell of circular arc periphery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201947146U CN201109092Y (en) | 2007-11-22 | 2007-11-22 | Power tool hammering transmission arrangement capable of preventing locking of bolt or screw cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201947146U CN201109092Y (en) | 2007-11-22 | 2007-11-22 | Power tool hammering transmission arrangement capable of preventing locking of bolt or screw cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201109092Y true CN201109092Y (en) | 2008-09-03 |
Family
ID=39893611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201947146U Expired - Lifetime CN201109092Y (en) | 2007-11-22 | 2007-11-22 | Power tool hammering transmission arrangement capable of preventing locking of bolt or screw cap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201109092Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104786184A (en) * | 2014-01-22 | 2015-07-22 | Sp空气株式会社 | Twin hammer clutch impact wrench |
| CN106891302A (en) * | 2015-12-17 | 2017-06-27 | 冠亿齿轮股份有限公司 | Can double end operation power tool |
-
2007
- 2007-11-22 CN CNU2007201947146U patent/CN201109092Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104786184A (en) * | 2014-01-22 | 2015-07-22 | Sp空气株式会社 | Twin hammer clutch impact wrench |
| CN106891302A (en) * | 2015-12-17 | 2017-06-27 | 冠亿齿轮股份有限公司 | Can double end operation power tool |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8925646B2 (en) | Right angle impact tool | |
| JP2000042936A (en) | Strike structure for impact tool | |
| CN206465032U (en) | rotary fastening device | |
| US9545708B2 (en) | Pneumatic motor with built-in striker mechanism | |
| CN201109092Y (en) | Power tool hammering transmission arrangement capable of preventing locking of bolt or screw cap | |
| TWI262118B (en) | Structure improvement of head-rotatable wrench | |
| CN201320736Y (en) | Shock screw driver | |
| US10843314B2 (en) | Power tool | |
| TWM460752U (en) | Pneumatic ratchet wrench | |
| TWI421152B (en) | Built-in pneumatic mechanism motor with hitting mechanism | |
| US9440348B2 (en) | Hand tool gearing unit | |
| CN201565892U (en) | Pneumatic tool for fastening wire thread insert | |
| CN201325015Y (en) | Swinging type spanner | |
| CN202716198U (en) | Hand-held screwdriver | |
| TW201210714A (en) | Electric tool | |
| EP4370284A1 (en) | Impact tool anvil with improved detent pin | |
| CN209633188U (en) | The chain tensioning mechanism of Tree chain saw | |
| CN207673128U (en) | Two point handle lock | |
| CN218881854U (en) | Fast-assembling mechanism, handle and lock of handle | |
| CN215920358U (en) | Multifunctional tool | |
| CN107457749A (en) | the bending structure of handle | |
| CN220994304U (en) | Ratchet wrench | |
| JP2006305693A (en) | Structure of hammering set of powered tool | |
| JPH0732987B2 (en) | Bolt / nut tightening machine | |
| CN219359333U (en) | Spanner adapter and bolt assembly and disassembly tools |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080903 |