CN2336924Y

CN2336924Y - Spanner with torsion detection and bump screw of improved structure

Info

Publication number: CN2336924Y
Application number: CN 98207614
Authority: CN
Inventors: 陈雄传; 刘国珍
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-07-24
Filing date: 1998-07-24
Publication date: 1999-09-08
Anticipated expiration: 2008-07-24

Abstract

The utility model relates to a torsion detecting and screw impacting spanner with an improved structure. The utility model comprises a ratchet spanner body, a handle part, and a ratchet head which is arranged on the front end of the ratchet spanner body, wherein, the ratchet head is provided with a pivot hole, a butting part, a push rod, and a heavy hammer, and the heavy hammer is provided with a convex part, an impacting part, and a rod part; the rod part is provided with a spring, and the handle part is provided with a bottom block, a pivot fixing hole, a screw hole, a containing hole, and a pivot rod; the spring is sheathed on the rod part, and the heavy hammer and the ratchet head are arranged in the containing part of the handle part; the ratchet head is fixedly pivoted in the handle part, and the impacting part of the heavy hammer is butted with the ratchet head. By means of the principle of fastening link by link, force generated by pressing is relieved for the heavy hammer, and the heavy hammer impacts the butting part of the ratchet head for being favorable to rotating a screw through a ratchet spanner.

Description

The structure improved spanner that has torsion mensuration and collide screw

The utility model relates to hand tools, relates in particular to a kind of structure improved spanner that screw was measured and collided to torsion that has.

Rotation screw, the hand tools that nut is used, from simple screwdriver, spanner, develop into the exchangeable tool head and can make things convenient for the ratchet spanner of reversion type, because the machinery that some is accurate, quite pay attention to the locking force of its screw, can not be too loose, can not be too tight, so the someone designs the ratchet spanner that can adjust torsion again, this spanner comprises spanner handle and is positioned at the ratchet structure of spanner handle one end, its inside is provided with a hollow lever arm with torque setting device, spanner handle inserts in this hollow lever arm, and the nearly ratchet structure of spanner handle place is articulated in hollow lever arm one end, when ratchet structure rotates, its inside just can be touched mutually with the spanner handle that be articulated in hollow lever arm in approaching with it, at the same time, torque setting device in the hollow lever arm just can the generation effect, its effect is according to user's setting, produce a fixing torsion, control the locking tightness of ratchet structure via spanner handle by its torsion to screw, the more traditional ratchet spanner rotation screw of this structure, the function of nut, though improve a lot, the user is at rotation screw, during nut, easily, but, the screw of not all locking can its occupation mode and smoothly dismounting, such as the screw that gets rusty or do not tear open for a long time, just can not use this kind structure spanner to dismantle, because this screw is when removing, all be that ratchet spanner is enclosed within on the screw, beat the shank of spanner again with weight, make screw produce slightly little vibration, move, so that it comes off along with iron filings and removes, the not only easy damaged screws of the action of at this moment beaing, also damage ratchet spanner easily, when if the double offset ring spanner that calls in is also firmer than ratchet spanner, very easily cause screw not rotate, and that the spanner handle of ratchet spanner has been pulled is curved by double offset ring spanner, the situation of damage, therefore the ratchet spanner of this structure still can not reach quite practical effect.

The purpose of this utility model is to provide a kind of structure improved spanner that screw was measured and collided to torsion that has, make some quite be difficult to rotate, or the dismounting of basic stuck screw is more convenient, do not need to assist a ruler in governing a country again instrument, rotation screw smoothly just, and can avoid damaging ratchet spanner.

The purpose of this utility model is realized by following technical scheme.

The structure improved spanner that has torsion mensuration and collide screw of the utility model, comprise the ratchet head that ratchet spanner body, shank and ratchet spanner body front end are provided with, its improvements are, the appropriate location of described ratchet head is respectively equipped with pivot hole, supporting part and push rod, be provided with a weight again, be respectively equipped with protuberance, bump portion and bar portion in the both sides of weight, bar portion is provided with a spring relatively; The rear side spiral shell of described shank is provided with a sole piece, and is respectively equipped with pivot solid hole, screw hole and holding part at the appropriate location of shank, is provided with hinged arm again; Spring housing is located in the bar portion, and weight and ratchet head are inserted in the holding part of shank, and ratchet head is solid in shank by the hinged arm pivot, and the bump portion contact of weight is on the supporting part of ratchet head.

Above-mentioned purpose of the present utility model can also further realize by following technical measures.

The utility model is structure improved to have a spanner that screw was measured and collided to torsion, and described ratchet head can be the oblique shape of θ angle lapping for one.

The structure improved spanner that has torsion mensuration and collide screw of the utility model, pass through spring force, the structure that cooperates weight bump ratchet head, reach ratchet head and have the effect of being convenient to dismantle screw, make the function that the utlity model has two kinds of instruments, two operational motions of dismounting screw can be merged into one, operation sequence is more easy.

Concrete structure of the present utility model is provided in detail by following examples and accompanying drawing thereof.

Fig. 1 is the utility model decomposition texture schematic diagram

Fig. 2 is the utility model combining structure schematic appearance

Fig. 3 is the utility model combining structure generalized section

Fig. 4 is the utility model protuberance and nose bar contact structure enlarged diagram

Fig. 5 is the action schematic diagram of the utility model bump portion and supporting part

Fig. 6 is the enlarged diagram of the utility model nose bar contact protuberance structure

Fig. 7 is action of the utility model bump portion and nose bar contractive action schematic diagram

Fig. 8 is another example structure schematic diagram of the utility model

Consult shown in Figure 1, the structure improved spanner that has torsion mensuration and collide screw of the utility model, comprise ratchet spanner body 10, shank 13 and the ratchet head 11 that is provided with at ratchet spanner body 10 front ends, the bar appropriate location that prolongs of ratchet head 11 is respectively equipped with pivot hole 111, the supporting part 112 of depression and a push rod 113 that is provided with at supporting part 112 1 ends, be provided with a weight 12 again, side at weight 12 is provided with protuberance 122, extend the bump portion 121 that is provided with again by protuberance 122, and be provided with bar portion 123 at the opposite side of weight 12, appropriate location at shank 13 is respectively equipped with the solid hole 131 of pivot in addition, screw hole 132 and 133, and dig in shank 13 inside and to be provided with holding part 134, the solid hole 131 of pivot is provided with hinged arm 1311 relatively, screw hole 132 is provided with screw 1321 and spring 1322 relatively, screw hole 133 is respectively equipped with screw 1331 relatively in addition, spring 1332 and nose bar 1333 are provided with a spring 14 and sole piece 15 again.

Consult shown in Fig. 2,3,4, spring 14 is inserted in the bar portion 123 of weight 12, again weight 12 and ratchet head 11 are successively inserted in the holding part 134 of shank 13, pass the solid hole 131 of pivot of shank 13 and the pivot hole 111 of ratchet head 11 simultaneously with hinged arm 1311, it is solid to give pivot, and bump portion 121 contacts that make its weight 12 are screwed into shank 13 with sole piece 15 and make sole piece 15 compression springs 14 at ratchet head 11 supporting parts 112; Spring 1322 and screw 1321 successively inserted and lock on the screw hole 132 of shank 13, make the both sides of spring 1322 contacts in ratchet head 11, nose bar 1333, spring 1332 are successively inserted the screw hole 133 of shank 13, again with on the screw 1331 locking screw holes 133, make nose bar 1333 contacts on the push rod 113 of ratchet head 11 (shown in Fig. 3,4), become the structure improved spanner that has torsion mensuration and collide screw of the utility model.

Consult Fig. 5, shown in Figure 6, operation principle of the present utility model is, ratchet head 11 is in the holding part 134 of shank 13, hinged arm 1311 is solid in the holding part 134 of shank 13 with mobilizable mode pivot, again in the both sides of ratchet head 11 respectively with spring 1322 contacts, when being adjusted into the ratchet head 11 of ratchet spanner body 10, the user is loosening state counterclockwise, and when forwarding ratchet spanner body 10 to the end toward counter clockwise direction, its ratchet head 11 can be the center of circle with hinged arm 1311 just, do slight moving clockwise, after ratchet head 11 moves, the spring 1322 of ratchet head 11 downsides is subjected to compressing (Fig. 5, shown in 6), because of moving of ratchet head 11, force former contact at the weight 12 in supporting part 112 centres of ratchet head 11 indirectly by the supporting part 12 of ratchet head 11 contact of turning right, so that push rod 113 meetings of ratchet head 11 thereby contact are at protuberance 122 places of weight 12, but and make nose bar 1333 proper contacts between push rod 113 and protuberance 122, make weight 12 be subjected to temporary transient compressing (Fig. 5, shown in 6), when weight 12 is turned right contact, spring 14 also is subjected to the compressing of weight 12, when spring 14 moving because of ratchet head 11, and when being forced into the limit, spring 14 just can produce reaction force (because ratchet spanner has been in by the user to forward the state at the end counterclockwise to originally, so the user will use spanner 10 to remove to turn round screw now), and ratchet head 11 up bullet top is returned to original position (this part moves as Fig. 5,6, shown in 7), in ratchet head 11 by in the bullet top up, because nose bar 1333 is between the protuberance 122 of the push rod 113 of ratchet head 11 and weight 12, so ratchet head 11 can be by pushing up solid state because push rod 113 is subjected to protuberance 122 originally, and can allow push rod 113 up slide along the inclined-plane of nose bar 1333, and then state is consolidated on the top of removing between its script and the protuberance 122, at push rod 113 when nose bar 1333 is up sliding, also can simultaneously nose bar 1333 up be pushed up, after weight 12 is removed the compacting of its ratchet head 11, user's desire is used before ratchet spanner 10 rotation screws, weight 12 just can be because of the bounce of its rear end spring 14, and impinge upon the supporting part 112 of ratchet head 11, originally the screw (unnumbered) that rotates by ratchet head 11 of sheathed desire receive bump between also, make the rotation that screw can be more convenient; Ratchet head 11 of the present utility model also can slightly be the oblique shape of a θ angle lapping as shown in Figure 8, make weight 12 when bump, can produce one just as impact along the loosening direction of screw, make the impact of weight 12 reach double effect, because the rear side spiral shell at shank 13 is provided with a sole piece 15 in order to contact spring 14, so the past more shank of spring 14 13 inside are screwed into, can cause spring 14 torsion big more, and make the impact of weight 12 bigger indirectly, therefore by the adjustment of sole piece 15 position shank 13 in, reach the purpose of the impact size of the torque magnitude of adjustment spring 14 and weight 12.

In sum, the structure improved spanner that has torsion mensuration and collide screw of the utility model, structural design is simple, reasonable, overcomes the defective of traditional product, reaches design purpose.

Claims

1, a kind of structure improved spanner that screw was measured and collided to torsion that has, comprise the ratchet head that ratchet spanner body, shank and ratchet spanner body front end are provided with, it is characterized in that, described ratchet head appropriate location is respectively equipped with pivot hole, supporting part and push rod, be provided with a weight again, be respectively equipped with protuberance, bump portion and bar portion in the both sides of weight, bar portion is provided with a spring relatively; The rear side spiral shell of described shank is provided with a sole piece, and is respectively equipped with pivot solid hole, screw hole and holding part at the appropriate location of shank, is provided with hinged arm again; Spring housing is located in the bar portion, and weight and ratchet head are inserted in the holding part of shank, and ratchet head is solid in shank by the hinged arm pivot, and the bump portion contact of weight is on the supporting part of ratchet head.

According to the described structure improved spanner that torsion is measured and collide screw that has of claim 1, it is characterized in that 2, described ratchet head can be the oblique shape of θ angle lapping for one.