CN104209911A - Labor-saving spanner - Google Patents
Labor-saving spanner Download PDFInfo
- Publication number
- CN104209911A CN104209911A CN201310208892.XA CN201310208892A CN104209911A CN 104209911 A CN104209911 A CN 104209911A CN 201310208892 A CN201310208892 A CN 201310208892A CN 104209911 A CN104209911 A CN 104209911A
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- China
- Prior art keywords
- gear
- dwang
- labour
- output
- power intake
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B17/00—Hand-driven gear-operated wrenches or screwdrivers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B17/00—Hand-driven gear-operated wrenches or screwdrivers
- B25B17/02—Hand-driven gear-operated wrenches or screwdrivers providing for torque amplification
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear Transmission (AREA)
Abstract
The invention discloses a labor-saving spanner which comprises an outer shell. A rotary rod is arranged in the outer shell and comprises a first end and a second end. The first end is connected with a power input end or the power input end is internally formed at the first end. The second end is connected with a reverse self-locking transmission mechanism. The reverse self-locking transmission mechanism provides an output end or is connected to the output end and at least comprises a driving mechanism and a driven mechanism. The driving mechanism is connected with the rotary rod. The driven mechanism is connected with a power output end or the driven mechanism and the power output end are integrally formed. The driving mechanism can drive the driven mechanism to move, but the driven mechanism can not drive the driving mechanism to move so that power of the power input end can be transmitted to the output end, and power of the output end can not be transmitted to the power input end. According to the labor-saving spanner, an operation mode of a bolt or a nut in the rotary unscrewing stage in the later pre-tightening and unscrewing period is improved, and the spanner is more convenient to use, simple in structure, low in cost and good in use effect.
Description
Technical field
The present invention relates to hand-held tool technical field, be specifically related to a kind of labour-saving spanner.
Background technology
Box spanner is commonly referred to as sleeve, it by multiple band hexagon ring or 12 corner apertures sleeve and be furnished with the multiple accessories such as handle, extension bar and form, be specially adapted to twist bolt or the nut of the very narrow and small or very depths of caving in, status.Traditional box spanner use procedure is cumbersome, during use, spanner can only turn an angle, often rotate a bolt all sleeve to be taken off, then put and again rotate, circulation like this by bolt or fastening nuts or could be taken off for several times, such operating process consumes the extensive work time, consumes user physical in a large number, inefficiency simultaneously.
Separately there is a kind of Bidirectional socket wrench to reach can to reach when handle rotates to both direction the object making bolt or nut screwing clamping or unclamp, simplify the use procedure of box spanner, but, owing to not needing very great strength at the revolving process in the pretension stage or dismounting later stage that use box spanner to carry out bolt or nut, and this device does not improve the rotation mode in these two stages, so to tighten or loosen bolt or nut hourly velocity still comparatively slow, compare and waste time and energy.And the restriction meeting of above-mentioned two kinds of spanners when narrow space uses due to space is more inconvenient.
Summary of the invention
The invention provides a kind of labour-saving spanner, to solve the revolving process inadequate labour-saving defect of existing spanner in the pretension stage of bolt or nut or dismounting later stage.
Technical scheme of the present invention is as follows:
A kind of labour-saving spanner, comprise an external shell, a dwang is provided with in described external shell, described dwang comprises first end and the second end, described first end connects power intake or an one-body molded power intake, described second end is connected with a reverse self-locking transmission mechanism, described reverse self-locking transmission mechanism provides an output or is connected to an output, described reverse self-locking transmission mechanism at least comprises a driving mechanism and a follower, wherein said driving mechanism is connected with described dwang, described follower is connected with described clutch end or one-body molded, described driving mechanism can drive described follower to move, but described follower can not drive described driving mechanism to move, thus make the kinetic force of described power intake be sent to described output, and the power of output can not be sent to described power intake.Labour-saving spanner of the present invention, when rotating described power intake, above-mentioned rotatory force can be converted to the power output of described output by described reverse self-locking transmission mechanism, thus rotate the bolt that is connected with described output or nut carries out pretension or dismantle the rotation in later stage unclamping, thus eliminate repeatedly the loaded down with trivial details work of repeated rotation spanner, easily carry out pretension and rotation is unclamped, when carrying out the stage of turning at first tightening or loosening bolt or nut after pretension completes, conventionally can hold handle carry out fastening or turn on, because the present invention is provided with reverse self-locking transmission mechanism, thus the power at bolt or nut place can not be made to be sent to described clutch end, thus the fastening of bolt or nut can be completed smoothly and unclamp.
In a preferred embodiment of the invention, described dwang is provided with speed increasing mechanism, can accomplish like this when power intake turns around, output can take a turn for the better a few circle, thus tighten faster or unclamp bolt or nut, and further preferred above-mentioned speed increasing mechanism is the speed increasing gear assembly that structure is simple, parts are easy to get.
Compared with prior art, beneficial effect of the present invention is as follows:
One, labour-saving spanner of the present invention achieves the object of easily tightening and unclamping status very narrow and small or cave in very depths bolt or nut with simple frame for movement, only need manpower or mechanical rotation power intake just can turn bolt or nut in the pretension stage, eliminate and use repeatedly repeatedly working needed for common spanner, and design cleverly also can ensure conventionally to carry out fastening simultaneously;
2nd, labour-saving spanner structure of the present invention is simple, and production technology is simple, and cost is low, and result of use is good.
Certainly, implement arbitrary product of the present invention might not need to reach above-described all advantages simultaneously.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the labour-saving spanner of the embodiment of the present invention 1;
Fig. 2 is the decomposition texture schematic diagram of the labour-saving spanner of the embodiment of the present invention 1;
Fig. 3 is the cross-sectional view after the assembling of the labour-saving spanner of the embodiment of the present invention 1;
Fig. 4 is the structural representation of Jie's gear of the labour-saving spanner of the embodiment of the present invention 1.
Detailed description of the invention
The invention provides a kind of labour-saving spanner, it comprises an external shell, a dwang is provided with in described external shell, described dwang comprises first end and the second end, described first end connects power intake or an one-body molded power intake, described second end is connected with a reverse self-locking transmission mechanism, described reverse self-locking transmission mechanism provides an output or is connected to an output, described reverse self-locking transmission mechanism at least comprises a driving mechanism and a follower, wherein said driving mechanism is connected with described dwang, described follower is connected with described clutch end or one-body molded, described driving mechanism can drive described follower to move, but described follower can not drive described driving mechanism to move, thus make the kinetic force of described power intake be sent to described output, and the power of output can not be sent to described power intake.The present invention is arranged by said structure and changes the occupation mode of traditional box spanner, can reach the object that rotational power input just can make bolt or nut pretension or unclamp dismounting, significantly reduce labour intensity, improve operating efficiency.
In following preferred embodiment mode, above-mentioned dwang is also provided with speed increasing mechanism.Can accomplish like this when power intake turns around, output can take a turn for the better a few circle, thus tightens faster or unclamp bolt or nut.Below with reference to specific embodiment, the present invention will be further described and illustrate to help better understanding the present invention, but following detailed description of the invention can not limit protection scope of the present invention.
Embodiment 1
See Fig. 1, Fig. 2 and Fig. 3, a kind of labour-saving spanner of the present embodiment, comprise an external shell 1, a dwang is provided with in this external shell 1, above-mentioned dwang comprises first end and the second end, wherein first end connects power intake or an one-body molded power intake, second end is connected with a reverse self-locking transmission mechanism, this reverse self-locking transmission mechanism provides an output or is connected to an output, wherein, reverse self-locking transmission mechanism at least comprises a driving mechanism and a follower, wherein driving mechanism is connected with dwang, follower is connected with clutch end or one-body molded, driving mechanism can drive follower to move, but follower can not drive driving mechanism to move, thus make the kinetic force of power intake be sent to output, and the power of output can not be sent to power intake.
Specifically in the present embodiment, external shell 1 comprises the two parts that can fasten, and be designated as Part I 11 and Part II 12, wherein Part I 11 has cavity, and Part II 12 is lid.Part I 11 comprises shank 111 and a head 112 on the other hand, Part II 12 also comprises shank 121 and a head 122 on the other hand, above-mentioned handle portion 111 and 121 can form holistic handle portion after fastening, and above-mentioned head 112 and 122 can form the head with entirety after fastening.Wherein, handle portion can be formed in one or be fixedly connected with the connected mode of head, detachable connection etc., and specifically in this enforcement, handle portion and head are connected by screw, see Fig. 1 and Fig. 2.
Specifically in the present embodiment, reverse self-locking transmission mechanism comprises a driving mechanism and a follower, driving mechanism is a worm screw 2 particularly, follower is the gear 3 engaged with this worm screw 2, wherein worm screw 2 is fixedly connected with the second end of dwang or is detachablely connected, one end that the non-and worm screw 2 of gear 3 engages is fixedly connected with output or is detachablely connected or is made into integration, and be formed in one an output 31 in the present embodiment, and this output 31 exposes the head of external shell 1; In the present embodiment, gear 3 is helical teeth cylindrical external gear, because helical gear and worm screw have better engagement, its reverse self-locking function is also better; The output 31 of gear 3 is a square cylinder that firmly can be connected with sleeve, can sheathed sleeve on this square cylinder, thus uses this sleeve to carry out tightening or loosening operation, or, also output 31 directly can be set to a sleeve.Wherein
Rotational power input, then worm screw 2 is rotated, and driven gear 3 rotates, and the rotation of power intake is converted to the rotation of output 31, thus or can tighten after unclamping or unclamp bolt or nut in bolt or nut not too tight pretension stage;
And when carry out fastening or the dismounting initial stage needs to turn energetically time, due to the power that the fastening bolt of need or nut can give output 31 1 reverse when stressed, when this reverse power is applied on worm screw 2 by gear 3, gear 3 and worm screw 2 can sting tightly, gear 3 and worm screw 2 are not all rotated, therefore dwang can not rotate, thus makes fastening or dismounting turn process and can carry out smoothly.
In the present embodiment, this labour-saving spanner is also provided with speed increasing mechanism on its dwang.Preferred speed increasing mechanism is the speed increasing gear assembly that structure is simple, parts are easy to get, and this speed increasing gear assembly is specially following setting:
Dwang comprises the first dwang portion 4 and the second dwang portion 5, wherein,
The first end 41 in the first dwang portion 4 connects a power intake or an one-body molded power intake, specifically in the present embodiment, being set to of this power intake: the first end 41 in the first dwang portion 4 has a junction 411, connecting portion 411 outer sheathed one is convenient to the wide footpath cylinder 6 that staff rotates, specifically herein, this wide footpath cylinder 6 is cylinder, and this wide footpath cylinder 6 can not relatively rotate with connecting portion 411, specifically in the present embodiment, see Fig. 2, it is square by connecting portion is set to, simultaneously in wide footpath cylinder 6, be equipped with square opening or square groove connects, thus make them not relatively rotate, except arrange square except, also can arrange other any these two parts that make can not shape in relative rotation, or, also circle can be set to, then be fixed by the mode such as bonding,
Second end 42 lateral surface in the first dwang portion 4 is fixed sheathed or is made into integration one first gear 7, and the inner side of the second end 42 is provided with storage tank or accommodating hole 421; Wherein
The first end 51 in the second dwang portion 5 inserts in storage tank or described accommodating hole 421, second end 52 in the second dwang portion 5 is worm shaft, worm screw 2 fixed cover is located on this worm shaft, and between the first end 51 in the second dwang portion 5 and the second end 52, fixed cover is provided with or is made into integration one second gear 8;
Some intermeshing Jie's gears 9 are provided with between the first gear 7 and the second gear 8.Specifically in the present embodiment, Jie's gear 9 arranges five, see Fig. 2, the fixed bar 10 that one fixes those Jie's gear positions is also set, this fixed bar 10 is fixed on the inner chamber of external shell 1, and see Fig. 3, those Jie's gears 9 are set on the first end 51 in fixed bar 10 and the second dwang portion 5 successively; Wherein
See Fig. 4, each Jie's gear 9 includes coaxially but two of different-diameter integrated gear wheels 91 and pinion 92, the gear wheel of each Jie's gear engages with the pinion of adjacent Jie's gear, every two adjacent Jie's gears are located on the first end 51 in fixed bar 10 and the second dwang portion 5 respectively, and engage with the first gear 7 of second end 42 in the first dwang portion 4 or the second gear 8 between the first end 51 in the second dwang portion 5 and the second end 52 respectively at the gear wheel of Jie's gear of end or pinion.Concrete composition graphs 2 and Fig. 3 can find out, the second gear 8 be set between the first end 51 in the gear wheel on fixed bar 10 Jie's gear topmost and the second dwang portion 5 and the second end 52 engages, and is set in the pinion on fixed bar 10 Jie's gear bottom and engages with the first gear 7 of second end 42 in the first dwang portion 4.And in the present embodiment, the first dwang portion 4 is arranged in handle portion, the second dwang portion 5, fixed bar 10 and worm screw 2 and be all arranged in the cavity of head with this worm screw 2 meshed gears 3.
The labour-saving spanner of the present embodiment tight a bolt or nut time, first output 31 is overlapped upper bush, by this jacket casing on bolt to be tightened or nut, then the wide footpath cylinder 6 of power intake is first rotated clockwise, carry out the pretension of bolt or nut, by the time when wide footpath cylinder 6 not easily rotates, pretension process completes substantially, now hold handle portion, along to tight a bolt or exert oneself turning handle portion in the direction of nut, can fastening bolt or nut, and then easily and complete tightening of bolt or nut fast.When using the labour-saving spanner of the present embodiment to unclamp bolt or nut, first output 31 is overlapped upper bush, by this jacket casing on bolt to be tightened or nut, then hold handle portion and rotate along the direction of unclamping bolt or nut, bolt or nut are fluffed, then the wide footpath cylinder 6 of rotational power input in the counterclockwise direction, thus unclamp or take out bolt or nut.Wherein, above about wide footpath cylinder 6 rotation direction and tighten or unclamp screw operation between not sole mode, in other embodiments of the invention, also can to rotate counterclockwise the direction as tightening, and in a clockwise direction as the direction of unclamping, should not be construed as limitation of the invention herein.
The disclosed preferred embodiment of the present invention just sets forth the present invention for helping above.Preferred embodiment does not have all details of detailed descriptionthe, does not limit the detailed description of the invention that this invention is only described yet.Obviously, according to the content of this description, can make many modifications and variations.This description is chosen and is specifically described these embodiments, is to explain principle of the present invention and practical application better, thus makes art technical staff understand well and to utilize the present invention.The present invention is only subject to the restriction of claims and four corner and equivalent.
Claims (10)
1. a labour-saving spanner, it is characterized in that, comprise an external shell, a dwang is provided with in described external shell, described dwang comprises first end and the second end, described first end connects power intake or an one-body molded power intake, described second end is connected with a reverse self-locking transmission mechanism, described reverse self-locking transmission mechanism provides an output or is connected to an output, described reverse self-locking transmission mechanism at least comprises a driving mechanism and a follower, wherein said driving mechanism is connected with described dwang, described follower is connected with described clutch end or one-body molded, described driving mechanism can drive described follower to move, but described follower can not drive described driving mechanism to move, thus make the kinetic force of described power intake be sent to described output, and the power of output can not be sent to described power intake.
2. labour-saving spanner as claimed in claim 1, it is characterized in that, described reverse self-locking transmission mechanism comprises a driving mechanism and a follower, described driving mechanism is a worm screw, described follower is the gear with this worm engaging, described worm screw is fixedly connected with the second end of described dwang or is detachablely connected, and one end of the non-and described worm engaging of described gear is fixedly connected with output or is detachablely connected or is made into integration; Wherein
Rotate described power intake, then worm screw is rotated, and drives described pinion rotation, thus the rotation of described power intake is converted to the rotation of output;
When described output rotates, described gear and described worm screw sting tightly, and described gear and described worm screw are not all rotated, and then described dwang does not rotate.
3. labour-saving spanner as claimed in claim 2, is characterized in that, described dwang is also provided with speed increasing mechanism.
4. labour-saving spanner as claimed in claim 3, it is characterized in that, described speed increasing mechanism is speed increasing gear assembly, and described speed increasing gear assembly is as follows:
Described dwang comprises the first dwang portion and the second dwang portion, wherein,
The first end in described first dwang portion connects a power intake or an one-body molded power intake, and the second end lateral surface in described first dwang portion is fixed sheathed or is made into integration one first gear, and is provided with storage tank or accommodating hole inside it;
The first end in described second dwang portion inserts in described storage tank or described accommodating hole, second end in described second dwang portion is worm shaft, described worm screw fixed cover is located on described worm shaft, and between the first end in described second dwang portion and the second end, fixed cover is provided with or is made into integration one second gear;
Some intermeshing Jie's gears are provided with between described first gear and described second gear.
5. labour-saving spanner as claimed in claim 4, it is characterized in that, also comprise fixing a fixed bar giving an account of gear position, described fixed bar is fixed on the inner chamber of described external shell, and described some Jie's gears are set on the first end in described fixed bar and described second dwang portion successively; Wherein
Described each Jie's gear includes coaxially but two of different-diameter integrated gear wheels and pinion, the gear wheel of each Jie's gear described engages with the pinion of adjacent Jie's gear, described adjacent Jie's gear is located in the first end in described fixed bar and described second dwang portion respectively, the gear wheel of described Jie's gear at end or pinion the second gears meshing respectively and between the first end in the first gear of second end in described first dwang portion or described second dwang portion and the second end.
6. labour-saving spanner as described in claim 5, it is characterized in that, described external shell comprises and being connected to each other or integrated proficiency shank and a head, described first dwang portion is arranged in described handle portion, described second dwang portion, described fixed bar and described worm screw and be all arranged in described head with the gear of this worm engaging.
7. labour-saving spanner as described in claim 2, it is characterized in that, described is helical teeth cylindrical external gear with the gear of worm engaging.
8. the labour-saving spanner as described in claim 2 or 7, is characterized in that, the described cylinder being sleeve with the output of the gear of worm engaging or firmly can being connected with sleeve.
9. the labour-saving spanner as described in claim 1 or 4, it is characterized in that, being set to of described power intake: one end of described dwang has a junction, described connecting portion outer sheathed is convenient to the wide footpath cylinder that staff rotates, and described wide footpath cylinder and described connecting portion can not relatively rotate.
10. the labour-saving spanner according to any one of claim 1-7, is characterized in that, described external shell comprises the two parts that can fasten, and a described wherein part has cavity, and another part is lid.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310208892.XA CN104209911A (en) | 2013-05-30 | 2013-05-30 | Labor-saving spanner |
| PCT/CN2014/078949 WO2014190938A1 (en) | 2013-05-30 | 2014-05-30 | Socket wrench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310208892.XA CN104209911A (en) | 2013-05-30 | 2013-05-30 | Labor-saving spanner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104209911A true CN104209911A (en) | 2014-12-17 |
Family
ID=52092025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310208892.XA Pending CN104209911A (en) | 2013-05-30 | 2013-05-30 | Labor-saving spanner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104209911A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07276254A (en) * | 1994-04-12 | 1995-10-24 | Nissei Kinzoku Kk | Thread fastening tool |
| CN2230648Y (en) * | 1995-10-16 | 1996-07-10 | 李忠贺 | Spanner with aid |
| CN2276861Y (en) * | 1996-12-13 | 1998-03-25 | 邵闽 | Fast two-way spanner |
| DE19716385A1 (en) * | 1997-04-18 | 1998-10-22 | Wojciech Muszynski | Spanner for nuts and bolts that are difficult to access |
| US6651532B1 (en) * | 2002-01-07 | 2003-11-25 | Darcy L. Whitelock | Drivable socket wrench |
| CN201922389U (en) * | 2010-05-04 | 2011-08-10 | 龚庙起 | Variable-speed spanner driven by duplicate gear |
-
2013
- 2013-05-30 CN CN201310208892.XA patent/CN104209911A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07276254A (en) * | 1994-04-12 | 1995-10-24 | Nissei Kinzoku Kk | Thread fastening tool |
| CN2230648Y (en) * | 1995-10-16 | 1996-07-10 | 李忠贺 | Spanner with aid |
| CN2276861Y (en) * | 1996-12-13 | 1998-03-25 | 邵闽 | Fast two-way spanner |
| DE19716385A1 (en) * | 1997-04-18 | 1998-10-22 | Wojciech Muszynski | Spanner for nuts and bolts that are difficult to access |
| US6651532B1 (en) * | 2002-01-07 | 2003-11-25 | Darcy L. Whitelock | Drivable socket wrench |
| CN201922389U (en) * | 2010-05-04 | 2011-08-10 | 龚庙起 | Variable-speed spanner driven by duplicate gear |
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Application publication date: 20141217 |
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