CN201023227Y

CN201023227Y - Ratchet wheel trip head structure for power tool

Info

Publication number: CN201023227Y
Application number: CNU2007201415553U
Authority: CN
Inventors: 谢智庆
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-03-19
Filing date: 2007-03-19
Publication date: 2008-02-20
Anticipated expiration: 2017-03-19

Abstract

The utility model relates to a ratchet wheel wrench head structure for a power tool, mainly comprising a power driving piece which is provided with a driving device inside and a wrench head, wherein the power driving piece is provided with a holding portion on one end and a driving portion on other end. The utility model is characterized in that the driving portion is a design as a connecting piece, one end of the connecting piece is formed as a connecting portion, and the other end of the connecting piece is formed as a ratchet portion which could be meshed with an elastic-restorable clamping block, which forms a ratchet wheel wrench head for a power tool. The utility model solves the time and power consumption and non-applicable to the modern working environment problems of the prior structure, such as the prior structure can not be used as a normal wrench tool without the power driving, or the prior structure which can be used as the normal wrench tool should be pulled out, reset and reconnected with a screw fixed piece before the assembling and disassembling operation.

Description

The ratchet wheel pulling header structure of power tool

Technical field

The utility model relates to a kind of " the ratchet wheel pulling header structure of power tool ", particularly relate to a kind ofly under unpowered driving, still can using, and the ratchet wheel pulling header structure that rotates of tool two-way reset.

Background technology

Press, the The modern industry development rapidly, its progress can be said so at a tremendous pace, industry can be so flourishing, no doubt heavy industry is indispensable, but it is indispensable that hand-held tool already is only, even the apparatus of heavy industry also all is by these hand-held tool manufacturings, maintenance, it is in vogue to add in recent years DIY general mood, and mass society masses have been lax usual things for the utilization of hand-held tool, especially in order to cooperate complicated facility operation, the improvement hand-held tool that all kinds are easier is constantly weeded out the old and bring forth the new, so-called " a workman must first sharpen his tools if he is to do his work well ", desire to make work more handy, outstanding hand-held tool is indispensable, and Taiwan one is to the laudatory title that have " hand-held tool kingdom ", and domestic hand-held tool development has reached the stage that quite baptizes especially, no matter be product category or architecture quality, all obtain domestic and international consistent affirming, nonetheless, the hand-held tool industry still constantly drops into research and development, improvement, utility model is hand-held tool more easily, makes the lifting that can more make progress of integral production industry.

Power tool trip gear of generally commonly using such as TaiWan, China patent case number No. 094217557 " structural improvement of pneumatic impact spanner ", it is to comprise a main body, one cylinder, one pallet, one bearing, an one control sealing gland lid and a regulation and control button are formed, it is characterized in that: this control sealing gland lid is the room rear side that is screwed together in main body, so as to cylinder, the sealing process of main body room is located and finished to pallet and bearing, and cover the wind-guiding path that is respectively equipped with an air intake path and two composition corresponding states in this control sealing gland, so as to cooperating one to have the regulation and control button effect of controlling the wind path, the path and the air quantity of cylinder entered and discharged in order to do the control air, and then the direction of rotation and the rotary torsion of subjective role end effectively controlled.

Though the power tool of commonly using is promptly reached the effect that can pull screw tightening with less assembly, but if the drive unit temporary derangement or the other factors of this power tool can't use, when needing directly to use its pulling head, the pulling head of commonly using power tool generally all is to belong to free movement state, can't use as general Wrench at all; Again, the power tool pulling head of part is when driving stops, with its pulling head clip, the pneumatic tool that this kind commonly used type is to can be used as general Wrench to use, but its structure also is unfavorable for locking, unloading rotation, therefore cause locking, unload screw tightening and need turn to a period of time of half or three minutes, must earlier pulling head be withdrawed from, reset, be inserted in screw tightening more again and lock, unload action; So time-consuming effort again, only be work between the every minute and second for success or failure, be instant, duty is, how to make power tool with outside the power drive mode, can then be that this creator puzzles out the target that it improves mode in losing the operation that the driving force state still can be locked fast, unload again.

Because the defective that the ratchet wheel pulling header structure of above-mentioned available dynamic instrument exists, the design people is based on being engaged in this type of product design manufacturing abundant for many years practical experience and professional knowledge, and the utilization of cooperation scientific principle, actively studied innovation, ratchet wheel pulling header structure in the hope of the power tool of founding a kind of new structure, can improve the ratchet wheel pulling header structure of general available dynamic instrument, make it have more practicality.Through constantly research, design, and, create the utility model that has practical value finally through after studying sample and improvement repeatedly.

Summary of the invention

Main purpose of the present utility model is, overcome the defective of the ratchet wheel pulling header structure existence of available dynamic instrument, and a kind of ratchet wheel pulling header structure of power tool of new structure, technical problem to be solved are provided is to make it can improve the structure of commonly using to run out of steam and can't use as general Wrench when driving; Though or the structure of commonly using can be used as the Wrench use, but need lock, unload when using screw tightening turn to half or three/for the moment, must earlier pulling head be withdrawed from, reset, be inserted in screw tightening more again and lock, unload operation, waste time and energy, do not conform to shortcomings such as modern working environment demand, thereby be suitable for practicality more.

The purpose of this utility model and to solve its technical problem be to adopt following technical scheme to realize.Ratchet wheel pulling header structure according to a kind of power tool that the utility model proposes, it mainly is to comprise that an inside is installed with the power drive part and a pulling head of drive unit, this power drive part one end is to be provided with a grip part, the other end is to be equipped with a drive division, this drive division is to connect the Coupling of establishing pulling head, this Coupling one end is to form the socket part, the other end then is to form ratchet part, but and the engagement of the clipping block of this ratchet part and elastic reset, so as to constituting the ratchet wheel pulling head of a power tool.

The purpose of this utility model and solve its technical problem and can also be able to be further achieved by the following technical measures.

The ratchet wheel pulling header structure of aforesaid power tool, wherein said drive division and Coupling joint are to be equipped with a block holding part, are to wear a perforating on this block holding part.

The ratchet wheel pulling header structure of aforesaid power tool is to be provided with one to switch switch in the wherein said block holding part, and this change-over switch is to be located in the perforating.

The ratchet wheel pulling header structure of aforesaid power tool, be to be provided with a rotating part in the wherein said block holding part, this rotating part is and the change-over switch interlock, and this rotating part is to replace with clipping block, utilization is stirred this change-over switch with the interlock rotating part, and make rotating part change replace the clipping block mode, form whereby one can two-way rotation pulling head.

The ratchet wheel pulling header structure of aforesaid power tool, wherein said rotating part are to connect to establish one and take turns portion, and should wheel portion be and the block holding part interlock.

The ratchet wheel pulling header structure of aforesaid power tool is to be provided with groove in the wherein said block holding part, and should wheel portion be provided with corresponding groove, makes block holding part and wheel portion interlock whereby.

The ratchet wheel pulling header structure of aforesaid power tool, the wherein said portion of wheel is arranged with a groove, so as to ccontaining for clipping block.

The ratchet wheel pulling header structure of aforesaid power tool, the wherein said portion of wheel utilizes a pivot to run through clipping block, makes this portion of wheel articulate clipping block whereby.

The ratchet wheel pulling header structure of aforesaid power tool is provided with a control module between wherein said clipping block and wheel portion, and this control module comprises a supporting member and an elastomer, so as to this clipping block elastic reset is provided.

The utility model compared with prior art has tangible advantage and beneficial effect.Via as can be known above, in order to achieve the above object, the utility model provides a kind of ratchet wheel pulling header structure of power tool, this power tool body mainly includes power drive part and the pulling head that an inside is installed with drive unit, wherein: this power drive part one end is to be provided with grip part and driving switch, and this power drive part other end is to be provided with drive division, this drive division and this Coupling joint are the block holding parts that is provided with hollow, be to be concaved with groove in this block holding part, this block holding part is outward a sheathed ring plate, and is to wear a hole on this ring plate; One end of this Coupling is formed with the socket part, and this Coupling other end is to be made as ratchet part, and this ratchet part inner edge is the ratchet that is provided with ring-type; This rotating part is to be provided with one to switch switch, and this change-over switch is to be placed in the perforating of block holding part, and is arranged in the hole of ring plate; This axle center of taking turns portion is to be run through by rotating part, contiguous block holding part one end of this portion of wheel is to be provided with groove, this takes turns portion's lateral margin is to be arranged with a groove, this groove can be ccontaining for clipping block, and utilize a pivot to articulate clipping block, these clipping block two ends are the be shaped first tooth portion and the second tooth portion, the biend that this clipping block corresponds to groove is two inclined-planes that are staggered to form to the obtuse angle, and be to be provided with a control module between this clipping block and groove, this control module is made up of a supporting member and an elastomer, by this change-over switch of rotation and then swing control module, this clipping block is pushed against and left and right sides deflection can be produced, fasten the ratchet of ratchet part whereby, the effect that this body tool can two-wayly be pulled;

By technique scheme, the ratchet wheel pulling header structure of the utility model power tool has following advantage at least:

The utility model is to make the power tool of commonly using have extensive utilization concurrently, and when running out of steam, still can use as the Wrench of tool reset function; When power tool loses driving force, need screw tightening to be locked with manpower, during the operation of unloading, ring plate on this change-over switch is to be provided with lines to indicate switching direction, the user can pull out according to indication to change this change-over switch change lock, unload the switching direction of screw tightening, and with hand-held grip part, with the grip part is a radius, this Coupling is that turn is done in the axle center, and utilize and stir change-over switch to adjust rotating manner, when the screw tightening lock, can be reversed switching when unloading to the wrist extreme angles, the interrupted control module that makes of Coupling this moment slides along the inclined-plane, and this first tooth portion or the second tooth portion and ratchet produce the escape phenomenon, make the power drive part be reset to original predeterminated position, make the user can proceed lock, unload the screw tightening operation, so this body can be had an effect that two-way reset is rotated, so as to quick and convenient switching power drive part to lock, the operator who unloads; Can exempt in the use and generally commonly use complexity, the disappearance consuming time that the cover card screw tightening that need take out, reset when spanner turns to predetermined angle again continues switching, make the user simpler and easy, quick in use;

Above-mentioned explanation only is the general introduction of technical solutions of the utility model, for can clearer understanding technological means of the present utility model, and can be implemented according to the content of specification, and for above-mentioned and other purposes, feature and advantage of the present utility model can be become apparent, below especially exemplified by preferred embodiment, and conjunction with figs., be described in detail as follows.

Description of drawings

Fig. 1 is the perspective exploded view of the ratchet wheel pulling header structure of the utility model power tool.

Fig. 2 is the stereoscopic schematic diagram of the ratchet wheel pulling header structure of the utility model power tool.

Fig. 3 is the profile perspective of the ratchet wheel pulling header structure of the utility model power tool.

Fig. 4, the 5th, the change-over switch illustrative view of AB line segment among Fig. 2.

Fig. 6, the 7th, the utility model utilize manual mode to pull the illustrative view of body to lock, to unload screw tightening.

1: body 2: the power drive part

21: drive division 22: grip part

23: driving switch 3: pulling head

31: ring plate 311: hole

32: block holding part 321: perforating

322: groove 33: rotating part

331: change-over switch 331: groove

34: wheel portion 341: groove

342: axis hole 343: groove

344:C shape button 345: catching groove

35: 351: the first tooth portions of clipping block

352: the second tooth portions 353: inclined-plane

354: pivot 36: control module

361: supporting member 362: elastomer

37: Coupling 371: ratchet part

372: socket part 373: hole slot

374: ratchet 375: catching groove

4: sleeve 5: screw tightening

The specific embodiment

For further setting forth the utility model is to reach technological means and the effect that predetermined utility model purpose is taked, below in conjunction with accompanying drawing and preferred embodiment, to its specific embodiment of ratchet wheel pulling header structure, structure, feature and effect thereof according to the power tool that the utility model proposes, describe in detail as after.

The utility model is the ratchet wheel pulling header structure of relevant a kind of power tool, please cooperate with reference to Figure 1 and Figure 2, this power tool body 1 mainly includes the power drive part 2 that an inside is installed with drive unit, reach pulling head 3 in order to the switching subject matter, the extended spot of this power drive part 2 is to engage with the Coupling 37 of pulling head 3, and power drive part 2 extended spots and Coupling 37 inside are can be ccontaining for rotating part 33 and wheel portion 34, wherein:

These power drive part 2 one ends are to be provided with grip part 22 to grip use for the user, these 22 contiguous places, grip part are to be provided with driving switch 23, this driving switch 23 is in order to open and close the external force driving power of power drive part 2, and these power drive part 2 other ends are to be provided with drive division 21, this drive division 21 is the angles that are default with grip part 22, this drive division 21 is the block holding parts 32 that are provided with hollow with these Coupling 37 joints, this drive division 21 be can be with block holding part 32 integrally formed or assembling connect and establish, these block holding part 32 lateral margins are to be provided with a perforating 321, be to be concaved with groove 322 in this block holding part 32, outside this block holding part 32 is a sheathed ring plate 31, and be to wear a hole 311 on this ring plate 31, be to be provided with lines on this ring plate 31 to indicate switching direction.

One end of this Coupling 37 is formed with the socket part 372 of a quadrangular prism shape, in order to do supplying detachably pivot bush unit of sleeve 4 (please consulting separately shown in the 6th, seven figure), these Coupling 37 other ends are to be made as ratchet part 371, and these ratchet part 371 inner edges are the ratchets 374 that are provided with ring-type; The axle center of this Coupling 37 is to be concaved with a hole slot 373, so that sheathed mutually with this rotating part 33.

This rotating part 33 adjacent wheel portions one distolateral edge is to be concaved with groove 332, these rotating part 33 other end lateral margins are to be provided with one to switch switch 331, this change-over switch 331 is to be placed in the perforating 321 of block holding part 32, and be arranged in the hole 311 of ring plate 31, change-over switch 331 can be exposed to outside the ring plate 31.

This axle center of taking turns portion 34 is to run through an axis hole 342, establish so that connect with this rotating part 33, this takes turns portion's 34 contiguous block holding part 32 1 ends is the grooves 343 that are provided with corresponding block holding part, this takes turns portion's 34 lateral margins is to be arranged with a groove 341, this groove 341 is to be connected with axis hole 342, and this groove 341 can be ccontaining for a clipping block 35; Be to be provided with catching groove 345 between groove 341 and the groove 343, this catching groove 345 is to fasten the usefulness that buckles for C shape button 344, and these Coupling 37 ratchets 374 outsides also are provided with corresponding catching groove 375, Coupling 37 is articulated in the wheel portion 34 and movable pivot with this; And should wheel portion 34 utilize a pivot 354 to run through clipping block 35, so that clipping block 35 is articulated in the wheel portion 34, these clipping block 35 two ends are the be shaped first tooth portion 351 and the second tooth portion 352, the biend that this clipping block 35 corresponds to groove 341 is two inclined-planes 353 that are staggered to form to the obtuse angle, and 341 of this clipping block 35 and grooves are to be provided with a control module 36, this control module 36 is made up of a supporting member 361 and an elastomer 362, and this elastomer 362 is to be arranged in the groove 332 of rotating part 33, by this change-over switch 331 of rotation and then swing control module 36, this clipping block 35 is pushed against and left and right sides deflection can be produced, fasten the ratchet 374 of ratchet part 371 whereby, the effect that this body 1 tool can two-wayly be pulled.

Please refer to shown in Figure 3ly, this power drive part 2 is to utilize a driving switch 23 opening and closing the power of drive division 21, this drive division 21 be with block holding part 32 socket groups if integrally formed, make this block holding part 32 and drive division 21 synchronous starts; Be to be provided with groove 322 in this block holding part 32, this groove 322 is to fasten corresponding with the groove 343 of wheel portion 34, make this block holding part 32 driven wheel portions 34 interlocks, this is taken turns portion 34 and has provided rotating part 33, these rotating part 33 contiguous block holding part 32 ends are to be provided with change-over switch 331, this change-over switch 331 is the perforatings 321 that penetrate block holding part 32, and with hole 311 sockets of ring plate 31; These rotating part 33 adjacent wheel portions 34 ends are to be provided with groove 332, and to install this control module 36, this control module 36 is to fasten with clipping block 35 elasticity; This Coupling 37 is to utilize C shape button 344 to be articulated in the wheel portion 34, and this Coupling 37 is by C shape button 344 and movable pivot; This clipping block 35 is to utilize a pivot 354 to be articulated in the wheel portion 34, this clipping block 35 utilizes inclined-plane 353 and control module 36 to be deflection and fastens, this clipping block 35 also utilizes the ratchet 374 of this first, second tooth portion 351,352 and Coupling 37 to fasten, so that the utility model is able to two-way pulling.

Please refer to shown in the deflection generalized section of Fig. 4 and Fig. 5, two ends, the left and right sides with Fig. 4 and Fig. 5 are reference direction, when change-over switch 331 stressed switchings left and deflection towards the first tooth portion 351, and fasten the location with the inclined-plane 353 of the first tooth portion 351 bottoms, then if the user is switching body 1 in a clockwise direction, then this control module 36 is 353 slips along the inclined-plane, and then the first tooth portion 351 can't fasten generation escape phenomenon with the ratchet 374 of Coupling 37, unloads and can't lock screw tightening 5; If the user is with counter clockwise direction switching body 1, then this control module 36 is replaced inclined-plane 353, and makes this first tooth portion 351 fasten the ratchet 374 of Coupling 37, makes Coupling 37 stressed fastening and can lock and unload screw tightening 5; Again, vice versa, when change-over switch 331 stressed switchings to the right and deflection towards the second tooth portion 352, and fasten the location with the inclined-plane 353 of the second tooth portion 352 bottoms, then if the user is with counter clockwise direction switching body 1, then this control module 36 is 353 slips along the inclined-plane, and then the second tooth portion 352 can't fasten generation escape phenomenon with the ratchet 374 of Coupling 37, unloads and can't lock screw tightening 5; If user's switching body 1 in a clockwise direction, then this control module 36 is replaced inclined-plane 353, and makes this second tooth portion 352 fasten the ratchet 374 of Coupling 37, makes Coupling 37 stressed fastening and can lock and unload screw tightening 5.

Please refer to Figure 6 and Figure 7, the utility model is on using, this power drive part 2 is to cooperate sleeve 4 to be driven by power mode such as pneumatic, electronic, and also can be cooperated sleeves 4 to drive as general bottle opener instrument and screw tightening 5 is locked, unloaded by manpower mode switching power drive part 2; As shown in Figure 6, the user is in carrying out screw tightening 5 locks, when unloading operation, can push driving switch 23, then drive division 21 be subjected to electronic, the pneumatic power mode that waits drives, this block holding part 32 is to be subjected to 21 interlocks of drive division, and be groove 343 engagement and the driven wheel portions 34 that are provided with groove 322 and wheel portion 34 in this block holding part 32, this Coupling 37 is to utilize C shape button 344 to be articulated in the wheel portion 34, this is taken turns portion 34 and utilizes first of clipping block 35, the second tooth portion 351,352 fasten with ratchet 374, and drive Coupling 37 whereby, so only need push driving switch 23 and can make Coupling 37 turns, and utilize socket part 372 locks, unload screw tightening 5; When if power drive part 2 is not tended to act by external force, can utilize manpower that screw tightening 5 is locked, unload operation, as shown in Figure 7, the user is hand-holdable grip part 22, and with grip part 22 serve as the axle radius, Coupling 37 carries out turn for the axle center, and utilize and stir change-over switch 331 to adjust rotating manner, when screw tightening 5 locks, can be reversed switching when unloading to the wrist extreme angles, the interrupted control module 36 that makes of Coupling 37 this moment 353 slides along the inclined-plane, and this first tooth portion 351 or the second tooth portion 352 produce the escape phenomenon with ratchet 374, make power drive part 2 be reset to original predeterminated position, make the user can proceed lock, unload screw tightening 5 operations.

The utility model is to connect in conjunction with general power tool and by drive division 21 to establish block holding part 32, the intention of two-way change-over switch 331 is set in this block holding part 32, if when power tool loses driving force, the function of still can manpower use its lock, unloading screw tightening 5, and in the use, can exempt and generally commonly use complexity, the disappearance consuming time that the cover card screw tightening 5 that need take out, reset when spanner turns to predetermined angle again continues switching, make the user simpler and easy, quick in use.

The person only is in order to explain preferred embodiment of the present utility model from the above mentioned; be not that attempt is done any pro forma restriction to the utility model according to this; be with; all have following of identical creation spirit do relevant any modification of the present utility model or change; as this power drive mode is the type of drive that can implement according to this as electronic, pneumatic etc., all must be included in the utility model intention protection category.

The utility model is on structural design, use practicality and cost benefit, really it is required to meet on the industry development fully, and disclosed structure creation also is unprecedented innovation structure, so it has " novelty " and should not have doubt, the utility model conventional construction has more the effect enhancement again, therefore also has " progressive ".

Claims

1. the ratchet wheel pulling header structure of a power tool, it is characterized in that: it mainly is to comprise that an inside is installed with the power drive part and a pulling head of drive unit, this power drive part one end is to be provided with a grip part, the other end is to be equipped with a drive division, this drive division is to connect the Coupling of establishing pulling head, this Coupling one end is to form the socket part, and the other end then is to form ratchet part, but and the clipping block of this ratchet part and elastic reset engagement.

2. the ratchet wheel pulling header structure of power tool according to claim 1 is characterized in that described drive division and Coupling joint are to be equipped with a block holding part, is to wear a perforating on this block holding part.

3. the ratchet wheel pulling header structure of power tool according to claim 2 is characterized in that in the described block holding part it being to be provided with one to switch switch, and this change-over switch is to be located in the perforating.

4. the ratchet wheel pulling header structure of power tool according to claim 3, it is characterized in that in the described block holding part it being to be provided with a rotating part, this rotating part is and the change-over switch interlock, and this rotating part is to replace with clipping block, utilization is stirred this change-over switch with the interlock rotating part, and make rotating part change replace the clipping block mode, form one can two-way rotation pulling head.

5. the ratchet wheel pulling header structure of power tool according to claim 4 is characterized in that described rotating part is to connect to establish one and take turns portion, and should wheel portion be and the block holding part interlock.

6. the ratchet wheel pulling header structure of power tool according to claim 5 is characterized in that in the described block holding part it being to be provided with groove, and should wheel portion be provided with corresponding groove, makes block holding part and wheel portion interlock.

7. the ratchet wheel pulling header structure of power tool according to claim 6 is characterized in that the described portion of wheel is arranged with a groove, and is ccontaining for clipping block.

8. the ratchet wheel pulling header structure of power tool according to claim 7 is characterized in that the described portion of wheel utilizes a pivot to run through clipping block, and this portion of wheel articulates clipping block.

9. the ratchet wheel pulling header structure of power tool according to claim 5 is characterized in that between described clipping block and wheel portion one control module being set, and this control module comprises a supporting member and an elastomer, so as to this clipping block elastic reset is provided.