CN104999401B - Spiral rapid ratchet spanners - Google Patents

Spiral rapid ratchet spanners Download PDF

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Publication number
CN104999401B
CN104999401B CN201410153968.8A CN201410153968A CN104999401B CN 104999401 B CN104999401 B CN 104999401B CN 201410153968 A CN201410153968 A CN 201410153968A CN 104999401 B CN104999401 B CN 104999401B
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CN
China
Prior art keywords
clamping piece
clamping
spacing ring
outer sleeve
drive rod
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Active
Application number
CN201410153968.8A
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Chinese (zh)
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CN104999401A (en
Inventor
朱锋平
富志宏
杨成
艾瑞克·鲍德威
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Apex Tool HK Ltd
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Apex Tool HK Ltd
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Priority to CN201410153968.8A priority Critical patent/CN104999401B/en
Publication of CN104999401A publication Critical patent/CN104999401A/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B13/00Spanners; Wrenches
    • B25B13/46Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle
    • B25B13/461Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle with concentric driving and driven member
    • B25B13/462Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle with concentric driving and driven member the ratchet parts engaging in a direction radial to the tool operating axis
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B23/00Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/0007Connections or joints between tool parts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B23/00Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/16Handles

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Clamps And Clips (AREA)
  • Turning (AREA)

Abstract

Spiral rapid ratchet spanners of the present invention includes a driving means, one lever and a clamping and drawing device, driving means has a drive rod, lever includes an outer sleeve, outer sleeve is sheathed on outside drive rod, clamping and drawing device includes first spacing ring and second spacing ring, first spacing ring and the second spacing ring are sheathed on outside drive rod and between drive rod and outer sleeve, clamping and drawing device has an adjustment part, adjustment part is optionally in primary importance, move relative to outer sleeve between the second position with the 3rd position, clamping and drawing device is additionally provided with several clamping piece in adjustment part, drive clamping piece clip when adjustment part moves or depart from outside the first spacing ring and the second spacing ring, ratchet spanner turning of work piece i.e. can be made by pushing the action of handle, for user, it be tight quickly workpiece to be turned or turn pine.

Description

Spiral rapid ratchet spanners
Technical field
The invention mainly relates to a kind of ratchet spanner, particularly to a kind of spiral rapid ratchet spanners.
Background technology
Refer to No. I350232 " ratchet wrench device " patent of TaiWan, China patent, it is a kind of ratchet wrench device, bag Include have the drive rod of U-shaped seat and this U-shaped seat against ratchet head and be threaded onto the connecting piece of this U-shaped seat and this ratchet head; Wherein this U-shaped seat is equipped with a pair perforation, and this ratchet head system is arranged with pressing piece, and this pressing piece is equipped with and corresponds to this to wearing The perforate in hole, this ratchet head is equipped with a pair combined hole, and each combined hole is arranged with cushion pad body respectively, and each cushion pad body is worn respectively Be provided with correspond to this to perforation pad hole, this connecting piece be threaded onto this to perforation, this perforate and this to pad hole with this spine Wheel capitiform becomes pivot joint state.
But, in use, after ratchet head is incorporated into workpiece, promotion drive rod is with switching workpiece, when making for above-mentioned ratchet spanner User is intended to during rapid turning of work piece to be only capable of the speed accelerating mobile drive rod, the most inconvenient and consume one's strength.
Summary of the invention
Spiral rapid ratchet spanners of the present invention its main purpose is, provide one include a driving means, a lever and The ratchet spanner of one clamping and drawing device, driving means has a drive rod, and drive rod side face is arranged with at least one first chute And at least one second chute, the first chute and the second chute are the most in the shape of a spiral, the first chute and the second chute are respectively around driving Bar a few, the rotation direction of the first chute and the second chute is opposite each other, and lever includes an outer sleeve, and outer sleeve is sheathed on driving Outside bar, outer sleeve optionally slides relative to drive rod and rotates, outer sleeve be equipped with one first perforation, one second bore a hole, One the 3rd perforation and one the 4th perforation, the first perforation, the second perforation, the 3rd perforation and the 4th perforation extend through outside connection The inner side of the collar and outside, clamping and drawing device includes first spacing ring and second spacing ring, the first spacing ring and second Spacing ring is sheathed on outside drive rod and between drive rod and outer sleeve, is convexly equipped with at least one first limit inside the first spacing ring Position flange, the first defining flange is slidedly arranged in the first chute, is provided with first teeth portion, the second spacing ring outside the first spacing ring Inner side is convexly equipped with at least one second defining flange, and the second defining flange is slidedly arranged in the second chute, is provided with outside the second spacing ring One the second teeth portion, clamping and drawing device has an adjustment part, and adjustment part is located at the outer sleeve side away from drive rod, and adjustment part selects Moving relative to outer sleeve between the 3rd position in primary importance, the second position of selecting property, clamping and drawing device is additionally provided with in adjustment part One the first clamping piece, second clamping piece, the 3rd clamping piece and the 4th clamping piece, the first clamping piece has one Individual clamping end and a sliding-end away from clamping end, the clamping end of the first clamping piece is inserted in the first perforation and selective clip In the first teeth portion of the first spacing ring, the sliding-end of the first clamping piece is slidedly arranged on adjustment part, and the second clamping piece has a clamping end And a sliding-end away from clamping end, the clamping end of the second clamping piece is inserted in the second perforation and selective clip limits in first First teeth portion of position ring, the sliding-end of the second clamping piece is slidedly arranged on adjustment part, and it is remote that the 3rd clamping piece has a clamping end and one From the sliding-end of clamping end, the clamping end of the 3rd clamping piece be inserted in the 3rd perforation and selective clip in the of the second spacing ring Two teeth portion, the sliding-end of the 3rd clamping piece is slidedly arranged on adjustment part, and the 4th clamping piece has a clamping end and one away from clamping end Sliding-end, the clamping end of the 4th clamping piece be inserted in the 4th perforation and selective clip in the second teeth portion of the second spacing ring, The sliding-end of the 4th clamping piece is slidedly arranged on adjustment part, when adjustment part is in primary importance, and the first clamping piece and the second clamping piece clip In the first spacing ring, the 3rd clamping piece and the 4th clamping piece clip in the second spacing ring, when adjustment part is in the second position, first Clamping piece departs from the first spacing ring, and the second clamping piece clip departs from second in the first spacing ring, the 3rd clamping piece and the 4th clamping piece Spacing ring, when adjustment part is in three positions, the first clamping piece and the second clamping piece depart from the first spacing ring, the 3rd clamping piece card Pulling in the second spacing ring, the 4th clamping piece departs from the second spacing ring, only need because of ratchet spanner by push handle action can Enough turning of work piece, enable ratchet spanner for user, workpiece quickly to turn tight or to turn pine.
Accompanying drawing explanation
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, in describing embodiment below, required use is attached Figure is briefly described, it should be apparent that, the accompanying drawing in describing below is only some embodiments of the present invention, for this area From the point of view of those of ordinary skill, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1: for the stereo appearance figure of spiral rapid ratchet spanners of the present invention;
Fig. 2: for the three-dimensional exploded view of spiral rapid ratchet spanners of the present invention;
Fig. 3: for the three-dimensional exploded view of spiral rapid ratchet spanners clamping and drawing device of the present invention;
Fig. 4: for the sectional structure chart of spiral rapid ratchet spanners of the present invention;
Fig. 5: for spiral rapid ratchet spanners adjustment part of the present invention sectional structure chart of the first spacing ring when the primary importance;
Fig. 6: for spiral rapid ratchet spanners adjustment part of the present invention sectional structure chart of the second spacing ring when the primary importance;
Fig. 7: for spiral rapid ratchet spanners adjustment part of the present invention sectional structure chart of the first spacing ring when the second position;
Fig. 8: for spiral rapid ratchet spanners adjustment part of the present invention sectional structure chart of the second spacing ring when the second position;
Fig. 9: for the operation chart of spiral rapid ratchet spanners of the present invention pull-out drive rod;
Figure 10: for spiral rapid ratchet spanners adjustment part of the present invention action diagram of the first spacing ring when the second position pulls out drive rod;
Figure 11: for spiral rapid ratchet spanners adjustment part of the present invention action diagram of the second spacing ring when the second position pulls out drive rod;
Figure 12: turn the operation chart of pine workpiece for spiral rapid ratchet spanners of the present invention;
Figure 13: for spiral rapid ratchet spanners adjustment part of the present invention action diagram of the first spacing ring when the second position promotes handle;
Figure 14: for spiral rapid ratchet spanners adjustment part of the present invention sectional structure chart of the first spacing ring when three positions;
Figure 15: for spiral rapid ratchet spanners adjustment part of the present invention sectional structure chart of the second spacing ring when three positions;
Figure 16: turn the operation chart of clamping of workpieces for spiral rapid ratchet spanners of the present invention;
Figure 17: for spiral rapid ratchet spanners adjustment part of the present invention action diagram of the second spacing ring when the 3rd position promotes handle.
Wherein: 10 ratchet spanneres;20 driving means;21 drive rods;211 first chutes;212 second chutes;213 drive Moved end;214 abutment end;22 driving heads;23 rotating rings;30 levers;31 outer sleeves;311 first perforation;312 Two perforation;313 the 3rd perforation;314 the 4th perforation;315 jacks;32 hold set;321 tanks;322 positioning balls;323 Spring;33 elastic components;40 clamping and drawing device;41 first spacing rings;411 first defining flanges;412 first teeth portion;42 Two spacing rings;421 second defining flanges;422 second teeth portion;43 first locating rings;431 first keepers;44 second Locating ring;441 second keepers;45 adjustment parts;451 first chutes;452 second chutes;453 first tracks;4531 First rest position;4532 second rest position;4533 the 3rd rest position;4534 first clamping pieces;4535 clamping ends; 4536 sliding-ends;454 second tracks;4541 first rest position;4542 second rest position;4543 the 3rd against position Put;4544 second clamping pieces;4545 clamping ends;4546 sliding-ends;455 the 3rd tracks;4551 first rest position; 4552 second rest position;4553 the 3rd rest position;4554 the 3rd clamping pieces;4555 clamping ends;4556 sliding-ends; 456 the 4th tracks;4561 first rest position;4562 second rest position;4563 the 3rd rest position;4564 the 4th Clamping piece;4565 clamping ends;4566 sliding-ends;457 locating slots;46 first slide blocks;461 shell fragments;462 locking parts; 47 second slide blocks;471 shell fragments;472 locking parts;48 adjust change;481 stopper slots;482 locating parts;49 distance pieces.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing embodiment of the present invention made into One step ground describes in detail.
With reference to shown in Fig. 1 and Fig. 2, for stereo appearance figure and the three-dimensional exploded view of spiral rapid ratchet spanners of the present invention.The present invention Ratchet spanner 10 includes 20, lever 30 of a driving means and a clamping and drawing device 40;Wherein:
Continue referring to shown in Fig. 3 and Fig. 4, for clamping and drawing device three-dimensional exploded view and the section of spiral rapid ratchet spanners of the present invention Structure chart.This driving means 20 has a drive rod 21, and this drive rod 21 side face is arranged with at least one first chute 211 And at least one second chute 212, this first chute 211 with this second chute 212 the most in the shape of a spiral, this first chute 211 With this second chute 212 respectively around this drive rod 21 a few, and the rotation direction of this first chute 211 and this second chute 212 that This is contrary, and described at least one the first chute 211 quantity in the present embodiment is two, and described at least one second is sliding Groove 212 quantity in the present embodiment is two.
One end of this drive rod 21 is formed with a drive end 213, this drive rod 21 and one end shape away from this drive end 213 Becoming an abutment end 214, this drive rod 21 is pivoted with a driving head 22 in this drive end 213, and this driving head 22 can select This drive rod 21 relative of selecting property pivots, and this driving head 22 is in the present embodiment for ratchet work head.
This drive rod 21 is also arranged with a rotating ring 23 between two ends, and this rotating ring 23 can be freely relative to this drive rod 21 rotate.
This lever 30 includes an outer sleeve 31, and this outer sleeve 31 is in elongated tubular, and this outer sleeve 31 is sheathed on this drive rod Outside 21, this outer sleeve 31 optionally can slide relative to this drive rod 21 and rotate.This outer sleeve 31 is equipped with one One 312, one the 3rd perforation 313 of perforation 311, second perforation and one the 4th perforation 314, this first perforation 311, This second perforation the 312, the 3rd perforation 313 and the 4th perforation 314 extend through inner side and the outside connecting this outer sleeve 31. This outer sleeve 31 is also equipped with a jack 315, and this jack 315 runs through inner side and the outside connecting this outer sleeve 31.
This lever 30 is also arranged with one outside this outer sleeve 31 and holds set 32, and this holds set 32 by the abutment end 214 of this drive rod 21 And locking phase this drive rod 21 is slided or rotate be sheathed on this outer sleeve 31, and this is held in set 32 and is provided with an elastic component 33, The two ends of this elastic component 33 bear against holds set 32 and the abutment end 214 of this drive rod 21 in this.
This is held set and 32 is arranged with a tank 321 in the one end away from this drive rod 21 abutment end 214, in this tank 321 by Outer and interior being sequentially provided with a positioning ball 322 and a spring 323, the two ends of this spring 323 bear against holds set 32 in this And this positioning ball 322.
This clamping and drawing device 40 includes first spacing ring 41 and second spacing ring 42, this first spacing ring 41 and should Second spacing ring 42 is in circular, and this first spacing ring 41 and this second spacing ring 42 are sheathed on outside this drive rod 21 and are positioned at Between this drive rod 21 and this outer sleeve 31, inside this first spacing ring 41, it is convexly equipped with at least one first defining flange 411, Described at least one the first defining flange 411 quantity in the present embodiment is two, two described the first defining flanges 411 It is slidedly arranged on respectively in described two the first chute 211, outside this first spacing ring 41, is provided with first teeth portion 412.This is years old Being convexly equipped with at least one second defining flange 421 inside two spacing rings 42, described at least one the second defining flange 421 is at this Quantity in embodiment is two, and two described the second defining flanges 421 are slidedly arranged on described two the second chute 212 respectively In, it is provided with second teeth portion 422 outside this second spacing ring 42.
This clamping and drawing device 40 includes first locating ring 43 and second locating ring 44, this first locating ring 43 and should Second locating ring 44 is in circular, and this first locating ring 43 and this second locating ring 44 are sheathed on outside this drive rod 21 and are positioned at Between this drive rod 21 and this outer sleeve 31, it is second spacing away from this that this first locating ring 43 is resisted against this first spacing ring 41 The side of ring 42, this second locating ring 44 is resisted against this second spacing ring 42 side away from this first spacing ring 41.This is years old One locating ring 43 is provided with first keeper 431, and this first keeper 431 is inserted in this first locating ring 43 simultaneously and is somebody's turn to do Outer sleeve 31, this second locating ring 44 is provided with second keeper 441, this second keeper 441 be inserted in simultaneously this second Locating ring 44 and this outer sleeve 31.
This clamping and drawing device 40 has an adjustment part 45, and this adjustment part 45 is slidedly arranged on this outer sleeve 31 away from this drive rod 21 Side, this adjustment part 45 can optionally along this outer sleeve 31 circumferencial direction primary importance, the second position with the 3rd Move relative to this outer sleeve 31 between putting.This adjustment part 45 is provided with first chute 451 and second chute 452, This first chute 451 is parallel to each other with this second chute 452.
This first chute 451 has first track 453 and second track 454, this first track 453 along this The bearing of trend of one chute 451 is formed with 4531, second rest position 4532 of first rest position and one the 3rd Rest position 4533, the first rest position 4531 of this first track 453 is positioned at the second rest position 4532 and the 3rd against position Putting between 4533, the distance between the first rest position 4531 of this first track 453 to this outer sleeve 31 is less than this first rail Second rest position 4532 in road 453 or the 3rd rest position 4533 of this first track 453 between this outer sleeve 31 away from From.This second track 454 is formed with first rest position 4541, second along the bearing of trend of this first chute 451 Rest position 4542 and the 3rd rest position 4543, the first rest position 4541 of this second track 454 is positioned at second and supports By between position 4542 and the 3rd rest position 4543, the first rest position 4541 of this second track 454 is to this outer sleeve Distance between 31 equal to the second rest position 4542 of this second track 454 to the distance between this outer sleeve 31 less than should 3rd rest position 4543 of the second track 454 is to the distance between this outer sleeve 31.
This second chute 452 has the 3rd track 455 and the 4th track 456, the 3rd track 455 along this The bearing of trend of two chutes 452 is formed with 4551, second rest position 4552 of first rest position and one the 3rd Rest position 4553, the first rest position 4551 of the 3rd track 455 is positioned at the second rest position 4552 and the 3rd against position Putting between 4553, the distance between the first rest position 4551 of the 3rd track 455 to this outer sleeve 31 is equal to the 3rd rail 3rd rest position 4553 in road 455 to the distance between this outer sleeve 31 less than the 3rd track 455 second against position Put 4552 to the distance between this outer sleeve 31.4th track 456 is formed with one along the bearing of trend of this second chute 452 4561, second rest position 4562 of individual first rest position and the 3rd rest position 4563, the 4th track 456 The first rest position 4561 between the second rest position 4562 and the 3rd rest position 4563, the 4th track 456 First rest position 4561 is less than the second rest position 4562 of the 4th track 456 to the distance between this outer sleeve 31 or is somebody's turn to do 3rd rest position 4563 of the 4th track 456 is to the distance between this outer sleeve 31.
This clamping and drawing device 40 is additionally provided with 4534, second clamping piece 4544, of first clamping piece in this adjustment part 45 Individual 3rd clamping piece 4554 and the 4th clamping piece 4564, this first clamping piece 4534 has a clamping end 4535 and The individual sliding-end 4536 away from this clamping end 4535, the clamping end 4535 of this first clamping piece 4534 is inserted in this first perforation 311 and selective clip in the first teeth portion 412 of this first spacing ring 41, the sliding-end 4536 of this first clamping piece 4534 It is slidedly arranged on the first track 453 of this first chute 451.
This second clamping piece 4544 has a clamping end 4545 and a sliding-end 4546 away from this clamping end 4545, should The clamping end 4545 of the second clamping piece 4544 is inserted in this second perforation 312 and optionally clip is in this first spacing ring 41 First teeth portion 412, the sliding-end 4546 of this second clamping piece 4544 is slidedly arranged on the second track 454 of this first chute 451.
3rd clamping piece 4554 has a clamping end 4555 and a sliding-end 4556 away from this clamping end 4555, should The clamping end 4555 of the 3rd clamping piece 4554 is inserted in the 3rd perforation 313 and optionally clip is in this second spacing ring 42 Second teeth portion 422, the sliding-end 4556 of the 3rd clamping piece 4554 is slidedly arranged on the 3rd track 455 of this second chute 452.
4th clamping piece 4564 has a clamping end 4565 and a sliding-end 4566 away from this clamping end 4565, should The clamping end 4565 of the 4th clamping piece 4564 is inserted in the 4th perforation 314 and optionally clip is in this second spacing ring 42 Second teeth portion 422, the sliding-end 4566 of the 4th clamping piece 4564 is slidedly arranged on the 4th track 456 of this second chute 452.
This clamping and drawing device 40 is additionally provided with first slide block 46 and second slide block 47 in this adjustment part 45, this first cunning Block 46 is located at this outer sleeve 31 side away from this drive rod 21, and this first slide block 46 is located in this first chute 451, This first slide block 46 is provided with a shell fragment 461 and a locking part 462, this first slide block in the side away from this outer sleeve 31 One end of the shell fragment 461 of 46 is resisted against the sliding-end 4536 of this first clamping piece 4534 and the other end is resisted against this second clamping piece The sliding-end 4546 of 4544, the locking part 462 of this first slide block 46 is connected to through this shell fragment 461 and this first slide block 46 This outer sleeve 31.This second slide block 47 is located at this outer sleeve 31 side away from this drive rod 21, and this second slide block 47 sets In this second chute 452, this second slide block 47 is provided with a shell fragment 471 and a lock in the side away from this outer sleeve 31 Firmware 472, one end of the shell fragment 471 of this second slide block 47 is resisted against the sliding-end 4556 of the 3rd clamping piece 4554 and another End is resisted against the sliding-end 4566 of the 4th clamping piece 4564, the locking part 472 of this second slide block 47 through this shell fragment 471 and This second slide block 47 and be connected to this outer sleeve 31.
This adjustment part 45 is arranged with three locating slots 457 near this side holding set 32, and it is fixed that this locating slot 457 can house this Position steel ball 322, makes one of them that this positioning ball 322 can be optionally located in described three locating slots 457
This clamping and drawing device 40 also includes one and adjusts change 48, and what this adjustment change 48 can rotate is sheathed on this outer sleeve 31 This adjustment part 45 outer and the most sheathed, this adjustment change 48 is resisted against this adjustment part 45 and synchronizes to drive this adjustment part 45 Moving relative to this outer sleeve 31 between one position, the second position and the 3rd position, this adjustment change 48 holds set 32 phase each other with this Adjacent.
This adjustment change 48 is additionally provided with a stopper slot 481 and a locating part 482, and this locating part 482 is slidedly arranged on this stopper slot It is connected to this outer sleeve 31 in 481, makes this adjustment change 48 be limited in and be only capable of in primary importance, the second position and the 3rd Between position, this outer sleeve 31 relative pivots.
This clamping and drawing device 40 also includes a distance piece 49, and this distance piece 49 is inserted in the jack 315 of this outer sleeve 31, and This distance piece 49 is located between this first spacing ring 41 and this second spacing ring 42, and this distance piece 49 is away from this drive rod 21 Side is resisted against this adjustment change 48.
Continue referring to shown in Fig. 5 and Fig. 6, for spiral rapid ratchet spanners adjustment part of the present invention when the primary importance first spacing Ring and the sectional structure chart of the second spacing ring.When this adjustment part 45 is in primary importance, this first clamping piece 4534 is resisted against this First rest position 4531 of the first track 453, and this first clamping piece 4534 clip is in the first tooth of this first spacing ring 41 Portion 412, this second clamping piece 4544 is resisted against the first rest position 4541 of this second track 454, and this second clamping piece 4544 clips in the first teeth portion 412 (as shown in Figure 5) of this first spacing ring 41, the 3rd clamping piece 4554 be resisted against this First rest position 4551 of three tracks 455, and the 3rd clamping piece 4554 clip is in the second teeth portion of this second spacing ring 42 422, the 4th clamping piece 4564 is resisted against the first rest position 4561 of the 4th track 456, and the 4th clamping piece 4564 Clip in the second teeth portion 422 (as shown in Figure 6) of this second spacing ring 42, this first spacing ring 41 and this second spacing ring 42 Cannot rotate relative to this outer sleeve 31.
Continue referring to shown in Fig. 7 and Fig. 8, for spiral rapid ratchet spanners adjustment part of the present invention when the second position first spacing Ring and the sectional structure chart of the second spacing ring.When this adjustment part 45 is in the second position, this first clamping piece 4534 is resisted against this Second rest position 4532 of the first track 453, and this first clamping piece 4534 departs from the first teeth portion of this first spacing ring 41 412, this second clamping piece 4544 is resisted against the second rest position 4542 of this second track 454, and this second clamping piece 4544 Clip is in the first teeth portion 412 (as shown in Figure 7) of this first spacing ring 41, and the 3rd clamping piece 4554 is resisted against the 3rd track Second rest position 4552 of 455, and the 3rd clamping piece 4554 departs from the second teeth portion 422 of this second spacing ring 42, should 4th clamping piece 4564 is resisted against the second rest position 4562 of the 4th track 456, and the 4th clamping piece 4564 depart from Second teeth portion 422 (as shown in Figure 8) of this second spacing ring 42, this first spacing ring 41 can be in the first direction relative to this driving Bar 21 rotates, and this second spacing ring 42 can in the first direction and second direction rotates relative to this outer sleeve 31.
When this adjustment part 45 is in three positions, this first clamping piece 4534 is resisted against the 3rd of this first track 453 against position Putting 4533, and this first clamping piece 4534 departs from the first teeth portion 412 of this first spacing ring 41, this second clamping piece 4544 supports It is against the 3rd rest position 4543 of this second track 454, and this second clamping piece 4544 departs from the of this first spacing ring 41 One teeth portion 412 (as shown in figure 14), the 3rd clamping piece 4554 is resisted against the 3rd rest position 4553 of the 3rd track 455, And the 3rd clamping piece 4554 clip be resisted against this in the second teeth portion 422 of this second spacing ring 42, the 4th clamping piece 4564 3rd rest position 4563 of the 4th track 456, and the 4th clamping piece 4564 departs from the second teeth portion of this second spacing ring 42 422 (as shown in figure 15), this first spacing ring 41 can in the first direction and second direction rotates relative to this drive rod 21, should Second spacing ring 42 can rotate relative to this outer sleeve 31 in the first direction.
Continue referring to shown in Fig. 9 to Figure 11, pull out the operation chart of drive rod for spiral rapid ratchet spanners of the present invention and move Mapping.When using this ratchet spanner 10, need to first rotate this adjustment and save 48, make this adjustment part 45 move to the second position, and Being pulled out by this drive rod 21, make the drive end 213 of this drive rod 21 away from this lever 30, now this drive rod 21 drives and is somebody's turn to do First spacing ring 41 rotates relative to this drive rod 21 in the first direction and this second spacing ring 42 is in a second direction relative to this outer sleeve 31 rotate.
Continue referring to shown in Figure 12 and Figure 13, turn the operation chart of pine workpiece for spiral rapid ratchet spanners of the present invention and move Mapping.After again this driving head 22 being connected to workpiece, this lever 30 is pushed toward the direction of workpiece, this first spacing ring 41 Drive this drive rod 21 to rotate relative to this outer sleeve 31 in the first direction, make 10 turns of loose workpiece of this ratchet spanner.
Continue referring to shown in Figure 14 to Figure 17, turn the operation chart of clamping of workpieces for spiral rapid ratchet spanners of the present invention and move Mapping.Save 48 when rotating this adjustment, make this adjustment part 45 move to the 3rd position, and this drive rod 21 is pulled out, make this The drive end 213 of drive rod 21 is away from this lever 30, then after this driving head 22 is connected to workpiece, by past for this lever 30 The direction of workpiece pushes, and this second spacing ring 42 drives this drive rod 21 to rotate relative to this outer sleeve 31 in a second direction, makes this 10 turns of clamping of workpieces of ratchet spanner.
Because of this ratchet spanner 10 only need the action by pushing this handle 30 i.e. can turning of work piece, make this ratchet spanner 10 energy Enough for user, it be tight quickly workpiece to be turned or turn pine.Because this ratchet spanner 10 is provided with this adjustment part 45, user can pass through This adjustment part 45 quickly adjusts turning to of this ratchet spanner 10.
Can summarize with regard to the above and the invention have the advantages that
1. being spiral rapid ratchet spanners of the present invention, wherein ratchet spanner includes a driving means, a lever and a card Pulling device, driving means has a drive rod, and drive rod side face is arranged with at least one first chute and at least one is second sliding Groove, the first chute and the second chute the most in the shape of a spiral, the first chute and the second chute respectively around drive rod a few, the first chute Opposite each other with the rotation direction of the second chute, lever includes an outer sleeve, and outer sleeve is sheathed on outside drive rod, and outer sleeve selects Property slide relative to drive rod and rotate, outer sleeve be equipped with one first perforation, one second bore a hole, one the 3rd bore a hole and One the 4th perforation, the first perforation, the second perforation, the 3rd perforation and the 4th perforation extend through the inner side of connection outer sleeve and outer Side, clamping and drawing device includes first spacing ring and second spacing ring, the first spacing ring and the second spacing ring are sheathed on and drive Outside lever and between drive rod and outer sleeve, inside the first spacing ring, it is convexly equipped with at least one first defining flange, the first limit Position flange is slidedly arranged in the first chute, is provided with first teeth portion, is convexly equipped with at least inside the second spacing ring outside the first spacing ring One the second defining flange, the second defining flange is slidedly arranged in the second chute, is provided with second teeth portion outside the second spacing ring, Clamping and drawing device has an adjustment part, and adjustment part is located at the outer sleeve side away from drive rod, and adjustment part is optionally at first Put, the second position moves relative to outer sleeve between the 3rd position, clamping and drawing device be additionally provided with in adjustment part first clamping piece, One the second clamping piece, the 3rd clamping piece and the 4th clamping piece, it is remote that the first clamping piece has a clamping end and one From the sliding-end of clamping end, the clamping end of the first clamping piece be inserted in the first perforation and selective clip in the of the first spacing ring One teeth portion, the sliding-end of the first clamping piece is slidedly arranged on adjustment part, and the second clamping piece has a clamping end and one away from clamping end Sliding-end, the clamping end of the second clamping piece be inserted in the second perforation and selective clip in the first teeth portion of the first spacing ring, The sliding-end of the second clamping piece is slidedly arranged on adjustment part, and the 3rd clamping piece has a clamping end and a sliding-end away from clamping end, The clamping end of the 3rd clamping piece is inserted in the 3rd perforation and optionally clip is in the second teeth portion of the second spacing ring, the 3rd clamping piece Sliding-end be slidedly arranged on adjustment part, the 4th clamping piece has a clamping end and a sliding-end away from clamping end, the 4th clip The clamping end of part is inserted in the 4th perforation and optionally clip is in the second teeth portion of the second spacing ring, the sliding-end of the 4th clamping piece Be slidedly arranged on adjustment part, when adjustment part is in primary importance, the first clamping piece and the second clamping piece clip in the first spacing ring, the 3rd Clamping piece and the 4th clamping piece clip are in the second spacing ring, and when adjustment part is in the second position, it is spacing that the first clamping piece departs from first Ring, the second clamping piece clip departs from the second spacing ring in the first spacing ring, the 3rd clamping piece and the 4th clamping piece, when adjustment part exists During three positions, the first clamping piece and the second clamping piece depart from the first spacing ring, the 3rd clamping piece clip in the second spacing ring, Four clamping pieces depart from the second spacing ring, only need because of ratchet spanner by push handle action i.e. can turning of work piece, make ratchet Workpiece quickly can be turned tight for user or turn pine by spanner.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all the spirit and principles in the present invention it In, any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.

Claims (9)

1. a spiral rapid ratchet spanners, it is characterised in that described spiral rapid ratchet spanners includes:
One driving means, this driving means has a drive rod, this drive rod side face be arranged with at least one first chute and At least one second chute, the first chute of this drive rod and the second chute the most in the shape of a spiral, the first chute of this drive rod and Two chutes respectively around this drive rod a few, the first chute of this drive rod and the rotation direction of the second chute are opposite each other;
One lever, this lever includes an outer sleeve, and this outer sleeve is sheathed on outside this drive rod, and this outer sleeve is selective Slide relative to this drive rod and rotate, this outer sleeve be equipped with one first perforation, one second bore a hole, one the 3rd bore a hole and One the 4th perforation, this first perforation, this second perforation, the 3rd perforation and the 4th perforation extend through this outer sleeve of connection Inner side and outside;
One clamping and drawing device, this clamping and drawing device includes first spacing ring and second spacing ring, this first spacing ring and This second spacing ring is sheathed on outside this drive rod and between this drive rod and this outer sleeve, is convexly equipped with inside this first spacing ring At least one first defining flange, this first defining flange is slidedly arranged in the first chute of this drive rod, outside this first spacing ring Being provided with first teeth portion, be convexly equipped with at least one second defining flange inside this second spacing ring, this second defining flange is sliding to be set In the second chute of this drive rod, being provided with second teeth portion outside this second spacing ring, this clamping and drawing device has an adjustment Part, this adjustment part is located at this outer sleeve side away from this drive rod, and this adjustment part is optionally in primary importance, the second position Move relative to this outer sleeve with between the 3rd position, this adjustment part is provided with first chute and second chute, this adjustment Having first track and second track in first chute of part, this first track is along the extension of this adjustment part the first chute Direction is formed with first rest position, second rest position and the 3rd rest position, the first of this first track Rest position between the second rest position and the 3rd rest position, the first rest position of this first track to this outer sleeve it Between distance less than the second rest position of this first track or this first track the 3rd rest position between this outer sleeve away from Be formed with first rest position from, this second track along the bearing of trend of this adjustment part the first chute, one second against position Put and the 3rd rest position, the first rest position of this second track between the second rest position and the 3rd rest position, First rest position of this second track is equal to the second rest position of this second track to this overcoat to the distance between this outer sleeve Distance between ring and less than the 3rd rest position of this second track to the distance between this outer sleeve, the second of this adjustment part is sliding Having the 3rd track and the 4th track in groove, the 3rd track is formed along the bearing of trend of this adjustment part the second chute One the first rest position, second rest position and the 3rd rest position, the first rest position position of the 3rd track Distance etc. between the second rest position and the 3rd rest position, between the first rest position of the 3rd track to this outer sleeve In the 3rd rest position of the 3rd track to the distance between this outer sleeve less than the second rest position of the 3rd track to should Distance between outer sleeve, the 4th track along the bearing of trend of this adjustment part the second chute be formed first rest position, One the second rest position and the 3rd rest position, the first rest position of the 4th track is positioned at the second rest position and the Between three rest position, the distance between the first rest position of the 4th track to this outer sleeve is less than the second of the 4th track 3rd rest position of rest position or the 4th track to the distance between this outer sleeve, this clamping and drawing device in this adjustment part also It is provided with first clamping piece, second clamping piece, the 3rd clamping piece and the 4th clamping piece, this first clamping piece There is a clamping end and a sliding-end away from this clamping end, the clamping end of this first clamping piece be inserted in this first perforation and Selective clip is in the first teeth portion of this first spacing ring, and the sliding-end of this first clamping piece is slidedly arranged on this adjustment part the first chute The first track, this second clamping piece has a clamping end and a sliding-end away from this clamping end, this second clamping piece Clamping end is inserted in this second perforation and optionally clip is in the first teeth portion of this first spacing ring, the sliding of this second clamping piece End is slidedly arranged on the second track of this adjustment part the first chute, and the 3rd clamping piece has a clamping end and one away from this clamping end Sliding-end, the clamping end of the 3rd clamping piece be inserted in the 3rd perforation and selective clip in the second of this second spacing ring Teeth portion, the sliding-end of the 3rd clamping piece is slidedly arranged on the 3rd track of this adjustment part the second chute, and the 4th clamping piece has one Clamping end and a sliding-end away from this clamping end, the clamping end of the 4th clamping piece be inserted in the 4th perforation and selective Clip is slidedly arranged on the 4th rail of this adjustment part the second chute in the second teeth portion of this second spacing ring, the sliding-end of the 4th clamping piece Road;
When this adjustment part is in primary importance, this first clamping piece and this second clamping piece clip in this first spacing ring, the 3rd Clamping piece and the 4th clamping piece clip are in this second spacing ring, and when this adjustment part is in the second position, this first clamping piece departs from This first spacing ring, this second clamping piece clip in this first spacing ring, the 3rd clamping piece and the 4th clamping piece depart from this Two spacing rings, when this adjustment part is in three positions, this first clamping piece and this second clamping piece depart from this first spacing ring, should 3rd clamping piece clip departs from this second spacing ring in this second spacing ring, the 4th clamping piece.
2. spiral rapid ratchet spanners as claimed in claim 1, it is characterised in that wherein this clamping and drawing device is in this adjustment part Being additionally provided with first slide block and second slide block, this first slide block is located at this outer sleeve side away from this drive rod, and should First slide block is located in the first chute of this adjustment part, and this first slide block is provided with a shell fragment and in the side away from this outer sleeve Individual locking part, one end of the shell fragment of this first slide block is resisted against the sliding-end of this first clamping piece and the other end is resisted against this second card The sliding-end of valve part, the locking part of this first slide block is connected to this outer sleeve through this shell fragment and this first slide block, this second cunning Block is located at this outer sleeve side away from this drive rod, and this second slide block is located in the second chute of this adjustment part, this second cunning Block is provided with a shell fragment and a locking part in the side away from this outer sleeve, one end of the shell fragment of this second slide block be resisted against this The sliding-end of three clamping pieces and the other end are resisted against the sliding-end of the 4th clamping piece, and the locking part of this second slide block passes this shell fragment And this second slide block and be connected to this outer sleeve.
3. spiral rapid ratchet spanners as claimed in claim 1, it is characterised in that wherein this clamping and drawing device includes the One locating ring and second locating ring, this first locating ring and this second locating ring are sheathed on outside this drive rod and are positioned at this driving Between bar and this outer sleeve, this first locating ring is resisted against this first spacing ring side away from this second spacing ring, and this is second fixed Position ring is resisted against this second spacing ring side away from this first spacing ring, and this first locating ring is provided with first keeper, should First keeper is inserted in this first locating ring and this outer sleeve simultaneously, and this second locating ring is provided with second keeper, and this is years old Two keepers are inserted in this second locating ring and this outer sleeve simultaneously.
4. spiral rapid ratchet spanners as claimed any one in claims 1 to 3, it is characterised in that wherein this clamping and drawing device Also including one and adjust change, what this adjustment change can rotate is sheathed on this outer sleeve this adjustment part outer and the most sheathed, should Adjust change be resisted against this adjustment part and synchronize drive this adjustment part between primary importance, the second position and the 3rd position relative should Outer sleeve moves.
5. spiral rapid ratchet spanners as claimed in claim 4, it is characterised in that wherein one end of this drive rod is formed with Individual drive end, this drive rod forms an abutment end with the one end away from this drive end, and this lever is also arranged with outside this outer sleeve Holding set for one, this is held and is provided with an elastic component in set, the two ends of this elastic component bear against in this hold set and this drive rod against End.
6. spiral rapid ratchet spanners as claimed in claim 5, it is characterised in that wherein this hold overlap by this drive rod against End and locking phase slide this drive rod or rotation is sheathed on this outer sleeve, and this holds the one end being placed on away from this drive rod abutment end Being arranged with a tank, be the most sequentially provided with a positioning ball and a spring in this tank, the two ends of this spring are respectively Being resisted against this and hold set and this positioning ball, this adjustment part is arranged with three locating slots near this side holding set, and this positioning ball selects Selecting property be located in described three locating slots one of them.
7. spiral rapid ratchet spanners as claimed in claim 4, it is characterised in that wherein this outer sleeve is also equipped with and inserts Hole, this jack runs through inner side and the outside connecting this outer sleeve, and this clamping and drawing device also includes a distance piece, and this distance piece is inserted Being located at the jack of this outer sleeve, and this distance piece is located between this first spacing ring and this second spacing ring, this distance piece is away from this The side of drive rod is resisted against this adjustment change.
8. spiral rapid ratchet spanners as claimed in claim 1, wherein this drive rod is pivoted with one in the drive end of this drive rod Individual driving head, this driving head optionally pivots relative to this drive rod, and this driving head is ratchet work head, and this drive rod is in two ends Between be also arranged with a rotating ring, this rotating ring rotates relative to this drive rod freely, this first spacing ring and this is second spacing Ring is circular, this adjustment part along the circumferencial direction of this outer sleeve is relative between primary importance, the second position and the 3rd position should Outer sleeve moves, and the first chute and second chute of this adjustment part are parallel to each other.
9. a spiral rapid ratchet spanners, it is characterised in that described spiral rapid ratchet spanners includes:
One driving means, this driving means has a drive rod, and this drive rod side face is arranged with two the first chutes and two Second chute, the most in the shape of a spiral, the first chute and second chute of this drive rod divide for the first chute of this drive rod and the second chute Not around this drive rod a few, the first chute of this drive rod and the rotation direction of the second chute are opposite each other;
One lever, this lever includes an outer sleeve, and this outer sleeve is sheathed on outside this drive rod, and this outer sleeve is selective Slide relative to this drive rod and rotate, this outer sleeve be equipped with one first perforation, one second bore a hole, one the 3rd bore a hole and One the 4th perforation, this first perforation, this second perforation, the 3rd perforation and the 4th perforation extend through this outer sleeve of connection Inner side and outside;
One clamping and drawing device, this clamping and drawing device includes first spacing ring and second spacing ring, this first spacing ring and This second spacing ring is sheathed on outside this drive rod and between this drive rod and this outer sleeve, is convexly equipped with inside this first spacing ring Two the first defining flanges, two described the first defining flanges are slidedly arranged in described two the first chute respectively, this first limit It is provided with first teeth portion outside the ring of position, inside this second spacing ring, is convexly equipped with two the second defining flanges, described two second Defining flange is slidedly arranged in described two the second chute respectively, is provided with second teeth portion, this clip outside this second spacing ring Device has an adjustment part, and this adjustment part is located at this outer sleeve side away from this drive rod, and this adjustment part is optionally One position, the second position move relative to this outer sleeve between the 3rd position, and this clamping and drawing device is additionally provided with one in this adjustment part First clamping piece, second clamping piece, the 3rd clamping piece and the 4th clamping piece, this first clamping piece has one Clamping end and a sliding-end away from this clamping end, the clamping end of this first clamping piece be inserted in this first perforation and selective Clip is slidedly arranged on this adjustment part in the first teeth portion of this first spacing ring, the sliding-end of this first clamping piece, and this second clamping piece has Having a clamping end and a sliding-end away from this clamping end, the clamping end of this second clamping piece is inserted in this second perforation and selects The clip of selecting property is in the first teeth portion of this first spacing ring, and the sliding-end of this second clamping piece is slidedly arranged on this adjustment part, the 3rd card Valve part has a clamping end and a sliding-end away from this clamping end, and the clamping end of the 3rd clamping piece is inserted in the 3rd and wears Hole and selective clip is slidedly arranged on this adjustment part in the second teeth portion of this second spacing ring, the sliding-end of the 3rd clamping piece, should 4th clamping piece has a clamping end and a sliding-end away from this clamping end, and the clamping end of the 4th clamping piece is inserted in this 4th perforation and selective clip is slidedly arranged on this adjustment in the second teeth portion of this second spacing ring, the sliding-end of the 4th clamping piece Part;
When this adjustment part is in primary importance, this first clamping piece and this second clamping piece clip in this first spacing ring, the 3rd Clamping piece and the 4th clamping piece clip are in this second spacing ring, and when this adjustment part is in the second position, this first clamping piece departs from This first spacing ring, this second clamping piece clip in this first spacing ring, the 3rd clamping piece and the 4th clamping piece depart from this Two spacing rings, when this adjustment part is in three positions, this first clamping piece and this second clamping piece depart from this first spacing ring, should 3rd clamping piece clip departs from this second spacing ring in this second spacing ring, the 4th clamping piece.
CN201410153968.8A 2014-04-16 2014-04-16 Spiral rapid ratchet spanners Active CN104999401B (en)

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Publication number Priority date Publication date Assignee Title
CN111032288B (en) * 2017-08-29 2022-01-11 艾沛克斯品牌公司 Rail type hand wrench
CN109202807B (en) * 2018-11-30 2021-01-26 佛山科学技术学院 Nut rotating device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2280594Y (en) * 1996-08-13 1998-05-06 江苏省送变电公司 Quick-acting socket wrench
US6311584B1 (en) * 2000-06-05 2001-11-06 Te Chen Chu Ratchet wrench having an additional driving device
CN2521816Y (en) * 2001-09-18 2002-11-20 任新 Hand microgenerator
CN2756392Y (en) * 2004-12-04 2006-02-08 陈祖江 Quick spanners
DE202007014032U1 (en) * 2007-10-08 2007-12-13 A-KRAFT Tools Manufacturing Co., Ltd., Wufong Quick release device of a key

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2521816A (en) * 1946-10-08 1950-09-12 Raymond B Adams Double spiral ratchet wrench

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2280594Y (en) * 1996-08-13 1998-05-06 江苏省送变电公司 Quick-acting socket wrench
US6311584B1 (en) * 2000-06-05 2001-11-06 Te Chen Chu Ratchet wrench having an additional driving device
CN2521816Y (en) * 2001-09-18 2002-11-20 任新 Hand microgenerator
CN2756392Y (en) * 2004-12-04 2006-02-08 陈祖江 Quick spanners
DE202007014032U1 (en) * 2007-10-08 2007-12-13 A-KRAFT Tools Manufacturing Co., Ltd., Wufong Quick release device of a key

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