CN203696862U - Spanner - Google Patents
Spanner Download PDFInfo
- Publication number
- CN203696862U CN203696862U CN201420044014.9U CN201420044014U CN203696862U CN 203696862 U CN203696862 U CN 203696862U CN 201420044014 U CN201420044014 U CN 201420044014U CN 203696862 U CN203696862 U CN 203696862U
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- China
- Prior art keywords
- spanner
- trigger
- feeding
- reset
- gear wheel
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- Expired - Fee Related
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- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The utility model discloses a spanner. The spanner comprises an upper jaw, a movable lower jaw and a spanner shell. The lower jaw is driven by a feeding mechanism to do rectilinear movement opposite to the rectilinear movement of the upper jaw. The feeding mechanism comprises a swing tooth, a driven gear and a feeding gear, wherein the driven gear is meshed with the front end of sawteeth of the swing tooth, the feeding gear is coaxial with the driven gear and drives the lower jaw, and the feeding gear is meshed with a braking pawl through which the feeding gear can rotate in the single direction. The spanner is characterized in that a one-way bearing is fixed in the driven gear, the feeding mechanism comprises a feeding trigger rotationally connected with the spanner shell, the feeding trigger is provided with a pressing part extending out of the spanner shell, and the swing tooth and the feeding trigger synchronously rotate at the front end in the spanner shell; the spanner further comprises a reset mechanism, the reset mechanism comprises a reset trigger capable of driving the swing tooth to disengage from the driven gear and driving the braking pawl to disengage from the feeding gear.
Description
Technical field
The utility model relates to a kind of manual fastened tools, especially a kind of spanner.
Background technology
Spanner is fastened tools, the especially monkey wrench of maintenance use conventional in daily life.Common monkey wrench is made up of handle, fixing feet and movable leg, wherein handle and fixing feet are fixed as one, movable leg moves linearly by the structure of worm and gear, make thus the width between fixing feet and movable leg adjustable, go for the operand of different size, as hex head screw or bolt, uncertain for various operands, but do not want again the occasion with too many instrument.
But in actual use procedure, conventionally can run into a hand needs supplemental support part, health etc., and can only pass through the situation of another hand one-handed performance spanner, causes inconvenient operation; And need continuous multipurpose rotary operand, and due to the reason of limited space, spanner can only rotate a certain angle, spanner must be exited to operating space thus, then rotary worm again after reorientating, this just needs the position of the mobile hand that grips pinch bar, larger for one-handed performance difficulty.
For this reason, also there is now the spanner that discloses some and facilitate one-handed performance, as the application number disclosed a kind of self-adjusting wrench with wheel gear locking mechanism of Chinese patent that is 200820031546.3, get final product automatic adjusting jaw to appropriate size by handle being applied to grip, vise the self-adjusting wrench with wheel gear locking mechanism of nut or bolt locked jaw, gear wheel is driven and is pulled a mouthful movable block by sliding rack, gear wheel side is fixed with the coaxial speed change gear wheel that a diameter is less, engage with swing tooth fan, spanner handle outside is provided with telescopic movable lever, in movable lever, be provided with pressure rod and resetting-mechanism, the transmission mechanism that is delivered to the wheel gear locking mechanism of spanner handle inner chamber by the deformation of arch spring leaf finally drives tooth member to engage and lock with gear wheel.But this spanner, vise after operand at spanner, realize locking by the distortion of pressure rod pressuring spring sheet, for making handle retraction promotion pressure rod and spring leaf generation deformation all need to apply larger grip, and before jaw is not adjusted to appropriate size (i.e. locking before) must keep holding with a firm grip state of handle, increase operation easier, in addition, the long-time rear spring sheet that uses is easily out of shape, and cause the accumulation along with access times, the power that need to apply is increasing, makes troubles to normal use.
Utility model content
Technical problem to be solved in the utility model is the problem existing for above-mentioned prior art, and a kind of spanner of easy and simple to handle, long service life is provided.
The utility model solves the problems of the technologies described above adopted technical scheme: a kind of spanner, comprise upper jaw, movable lower jaw and spanner housing, described lower jaw is driven and is done the rectilinear movement relative with upper jaw by feed mechanism, described feed mechanism comprises swing tooth, the driven gear engaging with the serrate front end of described swing tooth tool, and with the feed gear wheel of the described lower jaw of drive of the coaxial setting of described driven gear, on described feed gear wheel, be engaged with the braking ratchet of guaranteeing feed gear wheel single direction rotation, it is characterized in that, in described driven gear, be fixed with unilateral bearing, described feed mechanism also comprises the feeding trigger being rotationally connected with described spanner housing, described feeding trigger has the press section of extending outside described spanner housing, the leading section that described swing tooth and feeding trigger are positioned at spanner housing is synchronizeed and is rotated, described spanner also comprises resetting-mechanism, and described resetting-mechanism includes the reset trigger that can drive described swing tooth and the disengaging of described driven gear, described braking ratchet and described feed gear wheel to depart from.
The leading section that described feeding trigger is positioned at spanner housing offers locating slot, described swing tooth is arranged in described locating slot, thereby described locating slot and swinging is equipped with feeding trigger axle on tooth and forms feeding trigger, swings being rotationally connected of tooth and spanner housing, can realize thus the rotation of synchronizeing of swing tooth and feeding trigger.
On described swing tooth, offer clutch slot, one end of described feeding trigger axle is located in clutch slot and energy relative motion, the rearward end of described reset trigger is rotatably connected in described spanner housing, and be connected to the rear end of described swing tooth by connecting rod, thereby in the time that reset trigger is upwards pressed rearward end rotation, can will swing teeth directional post-tensioning and depart from driven gear by connecting rod.
Described feed mechanism also comprises and is connected to the adjustment spring leaf that described swing tooth rear end compresses the locating slot that swings tooth and feeding trigger, not only can remain on the comparatively state of close-fitting by swinging tooth and locating slot, prevents from swinging tooth and arbitrarily rotates; But also can be in the time making feeding trigger cannot cover a complete feed distance because operand specification is different, suitably deformation, makes feeding trigger continue feed motion and can not damage unilateral bearing.
Engage with described feed gear wheel the front portion of described braking ratchet, the middle part of described braking ratchet is rotatably connected in spanner housing, the rear portion of described braking ratchet is connected with described reset trigger by lever, thereby when reset trigger is upwards time, thereby can lift and make to brake ratchet rear portion and press down and anteriorly depart from feed gear wheel by lever rear end.
Described resetting-mechanism also comprises the jaw reset tension spring that keeps described feed gear wheel to have reversal trend, makes to brake after ratchet and feed gear wheel disengaging, and feed gear wheel, in the time of free state, applies reverse power and the reset of reversing to feed gear wheel.
The set-up mode of jaw reset tension spring, can be preferably, between described feed gear wheel and spanner housing, being formed with for the annular stopper slot that described jaw reset tension spring is set, the two ends of described jaw reset tension spring are fixed with spanner housing and feed gear wheel respectively.
Described feed mechanism also comprises that the described press section of maintenance has the feeding trigger torsion spring of reverse reset trend, thereby makes to unclamp after feeding trigger, can under the effect of feeding trigger torsion spring, automatically reset.
Described resetting-mechanism also comprises that the described reset trigger of maintenance has the reset trigger torsion spring of reverse reset trend, thereby makes to unclamp after reset trigger, can under the effect of reset trigger torsion spring, automatically reset.
Compared with prior art, the utility model has the advantage of: by unilateral bearing and braking ratchet are set, make to make it to rotate to press feeding trigger, thereby drive the mode of driven gear to operate, even if having ensured to unclamp feeding trigger, unilateral bearing and braking ratchet can not cause feed gear wheel reversion yet, make thus operation easier reduce (needn't whole process not loose one's grip in one action, and can drive several times lower jaw action), and the repeatedly action that can guarantee feeding trigger can make lower jaw continuous feed, and braking ratchet can bear the power of most reversion, can avoid the stressed damage of unilateral bearing, by resetting-mechanism is set, can make easily driven gear and feed gear wheel return to original state in free state, and feeding trigger and reset trigger also can reset rapidly automatically, conveniently work next time, in the end that swings tooth, adjustment spring leaf is set, not only can remain on the comparatively state of close-fitting by swinging tooth and locating slot, preventing from swinging tooth arbitrarily rotates, but also can be in the time making feeding trigger cannot cover a complete feed distance because operand specification is different, suitably deformation, makes feeding trigger continue feed motion and can not damage unilateral bearing.
Brief description of the drawings
Fig. 1 is the structural representation of spanner of the present utility model;
Fig. 2 is the partial structurtes schematic diagram (hiding housing and case lid) of spanner of the present utility model;
Fig. 3 is spanner working state schematic representation of the present utility model (before clutch);
Fig. 4 is spanner reset mode schematic diagram of the present utility model (after clutch);
Fig. 5 is that the A-A of Fig. 2 is to cutaway view.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiment is described in further detail the utility model.
Referring to Fig. 1, a kind of spanner, comprises upper jaw 1 and lower jaw 2, drives lower jaw 2 to move to upper jaw 1 direction by feed mechanism, drive lower jaw 2 to be returned to initial position by resetting-mechanism, feed mechanism and resetting-mechanism are contained in the spanner housing being formed by housing 3 and case lid 4.
For ease of describing, hereinafter, adopt the term at " front end (front portion) ", " rear end (rear portion) ", " front end (front portion) " refers to the one end near operand, and " rear end (rear portion) " refers to the one end away from operand.
Referring to Fig. 2 and Fig. 5, feed mechanism comprises feeding trigger 51, feeding trigger 51 comprises the press section 511 of extending outside spanner housing, the leading section that feeding trigger 51 is positioned at spanner housing offers locating slot 512, in locating slot 512, be provided with and swing tooth 52, on locating slot 512 and swing tooth 52, be equipped with feeding trigger axle 513, feeding trigger 51 and housing 3 and/or case lid 4 are rotationally connected, when press the press section 511 of feeding trigger 51, leading section lifts, thereby can drive the serrate front end of swing tooth 52 tool to move upward.Swing on tooth 52 and offer clutch slot 521, in the present embodiment, the form that clutch slot 521 is through hole, in the time that swing tooth 52 reaches certain thickness, clutch slot 521 can be also blind hole.One end of feeding trigger axle 513 is through this clutch slot 521, and relative motion can occur for clutch slot 521 and feeding trigger axle 13.By clutch slot 521, swinging tooth 52 can move by relative positioning groove 512.
The serrate front end of tool that swings tooth 52 engages with a driven gear 53, driven gear 53 is rotationally connected by follower shaft 531 and housing 3 and/or case lid 4, in driven gear 53, be fixed with unilateral bearing 532, and driven gear 53 coaxial be also provided with feed gear wheel 54.Due to the effect of unilateral bearing 532, when driven gear 53 rotates, the moment of torsion transmitting by unilateral bearing 532 and follower shaft 531 can only drive feed gear wheel 54 to rotate in one direction.
Feed gear wheel 54 engages with a transition gear 55, and transition gear 55 is rotationally connected by middle wheel shaft 551 and housing 3 and/or case lid 4.Transition gear 55 goes back and the tooth bar 56 fixing with lower jaw 2 engages, and thus, the rotation of transition gear 55 can drive the relative upper jaw 1 of lower jaw 2 to move linearly.
Because the power that unilateral bearing 532 can bear is limited, can be damaged in the time that the power of the reversion applying exceedes the scope that unilateral bearing 532 can bear, therefore feed mechanism is also provided with braking ratchet 57, engage with feed gear wheel 54 front portion, can bear major part and be applied to the power of the reversion on feed gear wheel 54, prevent that feed gear wheel 54 from reversing, the middle part of braking ratchet 57 and housing 3 and/or case lid 4 are rotationally connected.
511 belows, press section of feeding trigger 51 and an end butt of feeding trigger torsion spring 58, another end of feeding trigger torsion spring 58 and housing 3 lower wall butts, thus, after feeding trigger 51 has been pressed primary feed downwards and has been loosed one's grip, can reset by feeding trigger torsion spring 58, to press next time.
On feeding trigger 51, be also provided with and adjust spring leaf 59, its one end with swing tooth 52 rear end butts, thereby swings tooth 52 is pressed in locating slot 512 as much as possible so that swing tooth 52 lifting and move upward with feeding trigger 51 locating slots 512.In addition, if because of the specification problem of operand, cause feeding trigger 51 can not cover once complete feed distance and clamp (now feed gear wheel 54 can not be further rotated) when tight by operand, if now swinging tooth 52 further applies power to driven gear 53 and can cause unilateral bearing 532 to damage, therefore, adjust spring leaf 59 by arranging, in this case, adjust spring leaf 59 deformation can occur, swing tooth 52 and no longer continue to lift and driven gear 53 is applied to power, and feeding trigger 51 can further be pressed a complete feed distance.
Resetting-mechanism comprises reset trigger 61, extend spanner housing downside, the rearward end that reset trigger 61 is positioned at spanner housing can be rotationally connected with housing 3 and/or case lid 4, on it, be fixed with one end of a connecting rod 62, the other end of connecting rod 62 is connected to the rear end that swings tooth 52, on reset trigger 61, be also fixed with one end of lever 63, the other end of lever 63 is connected to the rear portion of braking ratchet 57, between the front and rear of braking ratchet 57, is formed with certain angle.
Resetting-mechanism also comprises jaw reset tension spring 64, is formed with for the stopper slot 65 that jaw reset tension spring 64 is set between housing 3 and feed gear wheel 54, and ringwise, the two ends of jaw reset tension spring 64 are fixing with housing 3 and feed gear wheel 54 respectively for stopper slot 65.
An end butt of the rearward end of reset trigger 61 and reset trigger torsion spring 66, another end of reset trigger torsion spring 66 and housing 3 lower wall butts, thus, after reset trigger 61 is upwards pressed, can reset by reset trigger torsion spring 66, to be returned to original state, resetting-mechanism no longer works.
Operation principle of the present utility model and process are as follows:
Need to operate operand time, mobile spanner makes operand between upper jaw 1 and lower jaw 2, then, press the press section 511 of feeding trigger 51 downwards, feeding trigger axle 513 is resisted against the rear end of the clutch slot 521 that swings tooth 52, thus, the locating slot 512 of feeding trigger 51 leading sections drives the front end that swings tooth 52 upwards to lift, driven gear 53 is rotated counterclockwise, by unilateral bearing 532, follower shaft 531 transmitting torques drive feed gear wheel 54 to be synchronously rotated counterclockwise, feed gear wheel 54 drives the transition gear 55 of engagement to turn clockwise thus, the tooth bar 56 engaging with transition gear 55 drives upwards (to upper jaw 1 direction) movement of lower jaw 2, in this process, engage with feed gear wheel 54 all the time braking ratchet 57 front portions, ensure normal feeding.In the present embodiment, 51 1 complete feed distances of feeding trigger can drive the feeding of lower jaw 2 general 6mm, by regulating the gearratio of feed gear wheel 54 and transition gear 55, the feeding of adjustable lower jaw 2.
After once pressing and loosing one's grip, feeding trigger 51 reset under the effect of feeding trigger torsion spring 58 (having compressed feeding trigger torsion spring 58 when press section 511 presses down), swing tooth 52 and driven gear 53 reverses thereupon, and due to unilateral bearing 532 and the effect of braking ratchet 57, the reversion of driven gear 53 can not drive feed gear wheel 54 to reverse together, can not drive lower jaw 2 oppositely to move, thereby can ensure again to press the continuous feeding of the rear realization of feeding trigger 51.Along with pressing of feeding trigger 51 each time, feed gear wheel 54, constantly along being rotated counterclockwise, in the interior elongation of stopper slot 65, applies the precompression of reverse reset by jaw reset tension spring 64 all the time to feed gear wheel 54.
By pressing of feeding trigger 51 at least one times, make lower jaw 2 move to interval between upper jaw 1 and the operand adaptation of current specific standard, upper jaw 1 and lower jaw 2 and operand close-fitting, rotary spanner is rotatable operand, referring to Fig. 3.
After finishing the work, upwards press reset trigger 61, thereafter end below rotation backward, pull the rear end that swings tooth 52 by connecting rod 62, make it along locating slot 511 translation backward, feeding trigger axle 513 abuts to the front end of clutch slot 521, and the sawtooth and the driven gear 53 that swing tooth 52 front ends are departed from; Meanwhile, lever 63 is elevated with one end that reset trigger 61 is connected, and lever 63 other ends is pressed down and drive braking ratchet 57 rear portions to press down, and braking ratchet 57 turns clockwise around middle part, and front portion and the feed gear wheel 54 of braking thus ratchet 57 depart from; Now, feed gear wheel 54 is in free state, no longer be subject to the restriction of admission, the pulling force of the reverse reset that the jaw reset tension spring 64 being now elongated applies feed gear wheel 54, make feed gear wheel 54 counter-rotate Rapid reset, drive lower jaw 2 to be returned to the jaw position of initial maximum, in this process, also can drive driven gear 53 to counter-rotate certain angle by follower shaft 531, and depart from driven gear 53 owing to now swinging tooth 52, avoid unilateral bearing 532 stressed and damage, referring to Fig. 4.After this, unclamp reset trigger 61, under the effect of reset trigger torsion spring 66, reset (while pressure on reset trigger 61, having compressed reset trigger torsion spring 66), swing tooth 52 along locating slot 511 forward the sawtooth of its front end of translation again engage with driven gear 53 so that operation next time is normally carried out.
Claims (9)
1. a spanner, comprises upper jaw (1), movable lower jaw (2) and spanner housing, and described lower jaw (2) is driven and done the rectilinear movement relative with upper jaw (1) by feed mechanism,
Described feed mechanism comprises swing tooth (52), the driven gear (53) engaging with the serrate front end of described swing tooth (52) tool, and with the feed gear wheel (54) of the described lower jaw of drive (2) of the coaxial setting of described driven gear (53), on described feed gear wheel (54), be engaged with the braking ratchet (57) of guaranteeing feed gear wheel (54) single direction rotation, it is characterized in that
In described driven gear (53), be fixed with unilateral bearing (532), described feed mechanism also comprises the feeding trigger (51) being rotationally connected with described spanner housing, described feeding trigger (51) has the press section (511) of extending outside described spanner housing, and the leading section that described swing tooth (52) and feeding trigger (51) are positioned at spanner housing is synchronizeed and rotated;
Described spanner also comprises resetting-mechanism, and described resetting-mechanism includes the reset trigger (61) that can drive described swing tooth (52) and described driven gear (53) disengaging, described braking ratchet (57) and described feed gear wheel (54) to depart from.
2. spanner as claimed in claim 1, it is characterized in that, the leading section that described feeding trigger (51) is positioned at spanner housing offers locating slot (512), described swing tooth (52) is arranged in described locating slot (512), described locating slot (512) and swing on tooth (52), be equipped with feeding trigger axle (513) thus form feeding trigger (51), swing being rotationally connected of tooth (52) and spanner housing.
3. spanner as claimed in claim 2, it is characterized in that, on described swing tooth (52), offer clutch slot (521), one end of described feeding trigger axle (513) is located in clutch slot (521) and energy relative motion, the rearward end of described reset trigger (61) is rotatably connected in described spanner housing, and is connected to the rear end of described swing tooth (52) by connecting rod (62).
4. spanner as claimed in claim 2, it is characterized in that, described feed mechanism also comprise be connected to described swing tooth (52) rear end will swing tooth (52) and feeding trigger (51) locating slot (512) compress adjustment spring leaf (59).
5. the spanner as described in any one in claim 1-4, it is characterized in that, engage with described feed gear wheel (54) front portion of described braking ratchet (57), the middle part of described braking ratchet (57) is rotatably connected in spanner housing, and the rear portion of described braking ratchet (57) is connected with described reset trigger (61) by lever (63).
6. the spanner as described in any one in claim 1-4, is characterized in that, described resetting-mechanism also comprises the jaw reset tension spring (64) that keeps described feed gear wheel (54) to have reversal trend.
7. spanner as claimed in claim 6, it is characterized in that, between described feed gear wheel (54) and spanner housing, be formed with for the annular stopper slot (65) that described jaw reset tension spring (64) is set, the two ends of described jaw reset tension spring (64) are fixing with spanner housing and feed gear wheel (54) respectively.
8. the spanner as described in any one in claim 1-4, is characterized in that, described feed mechanism also comprises the feeding trigger torsion spring (58) that keeps described press section (511) to have reverse reset trend.
9. the spanner as described in any one in claim 1-4, is characterized in that, described resetting-mechanism also comprises the reset trigger torsion spring (66) that keeps described reset trigger (61) to have reverse reset trend.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201420044014.9U CN203696862U (en) | 2014-01-23 | 2014-01-23 | Spanner |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201420044014.9U CN203696862U (en) | 2014-01-23 | 2014-01-23 | Spanner |
Publications (1)
Publication Number | Publication Date |
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CN203696862U true CN203696862U (en) | 2014-07-09 |
Family
ID=51047360
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN201420044014.9U Expired - Fee Related CN203696862U (en) | 2014-01-23 | 2014-01-23 | Spanner |
Country Status (1)
Country | Link |
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CN (1) | CN203696862U (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103753462A (en) * | 2014-01-23 | 2014-04-30 | 宁波黑松工具有限公司 | Spanner |
CN105328610A (en) * | 2015-12-16 | 2016-02-17 | 苏州太湖国家旅游度假区希成五金加工厂 | Movable wrench convenient to use |
CN105617670A (en) * | 2014-11-07 | 2016-06-01 | 刘玉雪 | Clapping device |
CN105617672A (en) * | 2014-11-07 | 2016-06-01 | 刘玉雪 | Clapping device |
CN106041802A (en) * | 2016-07-06 | 2016-10-26 | 南京机电职业技术学院 | Monkey wrench |
CN108858008A (en) * | 2018-07-20 | 2018-11-23 | 杭州巨星科技股份有限公司 | A kind of ratchet extruding spanner |
-
2014
- 2014-01-23 CN CN201420044014.9U patent/CN203696862U/en not_active Expired - Fee Related
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103753462A (en) * | 2014-01-23 | 2014-04-30 | 宁波黑松工具有限公司 | Spanner |
CN105617670A (en) * | 2014-11-07 | 2016-06-01 | 刘玉雪 | Clapping device |
CN105617672A (en) * | 2014-11-07 | 2016-06-01 | 刘玉雪 | Clapping device |
CN105617672B (en) * | 2014-11-07 | 2018-08-21 | 广州骏思知识产权管理咨询有限公司韶关分公司 | A kind of applause device |
CN105617670B (en) * | 2014-11-07 | 2018-09-18 | 广州骏思知识产权管理咨询有限公司韶关分公司 | A kind of applause device |
CN105328610A (en) * | 2015-12-16 | 2016-02-17 | 苏州太湖国家旅游度假区希成五金加工厂 | Movable wrench convenient to use |
CN106041802A (en) * | 2016-07-06 | 2016-10-26 | 南京机电职业技术学院 | Monkey wrench |
CN108858008A (en) * | 2018-07-20 | 2018-11-23 | 杭州巨星科技股份有限公司 | A kind of ratchet extruding spanner |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140709 Termination date: 20160123 |
|
EXPY | Termination of patent right or utility model |