CN102198648B - Screwdriver of ratchet mechanism - Google Patents
Screwdriver of ratchet mechanism Download PDFInfo
- Publication number
- CN102198648B CN102198648B CN201010135122.3A CN201010135122A CN102198648B CN 102198648 B CN102198648 B CN 102198648B CN 201010135122 A CN201010135122 A CN 201010135122A CN 102198648 B CN102198648 B CN 102198648B
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- China
- Prior art keywords
- screwdriver
- base portion
- locking plate
- gear member
- pullover
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Abstract
The invention discloses a screwdriver of a ratchet mechanism, comprising a front rod, a rear rod and a handle, wherein the front part of the front rod is connected with a cavity of a cutter head of the screwdriver and the rear part of the front rod is provided with a central gear piece; the front part of the rear rod is provided with a base part and the rear part of the rear rod is provided with a connection part; the central gear piece is inserted in the base part and fixedly connected with the base part and can rotate in the base part. The screwdriver is characterized by further comprising a left lock plate, a right lock plate and a middle control plate; a rotary sleeve head for controlling the rotation direction is sleeved outside the base part; under the matching of the rotary sleeve head, the central control plate and the lock plates, the functions of the rotation lock and the one-way rotation lock of the central gear piece can be realized and the one-way idle operation of the screwdriver is realized; the rotation direction of the screwdriver can be controlled more conveniently by users in the use process; and the screws can be screwed and unscrewed more conveniently in a labor-saving way.
Description
Technical field
The present invention relates to a kind of screwdriver, particularly relate to a kind of screwdriver that can control its direction of rotation.
Background technology
Screwdriver is as a kind of conventional handware, for slack adjuster, common screwdriver is as shown in Chinese patent CN2071113U, generally include handle 1, knife bar 2 and cutter head 3, user drives knife bar 2 and cutter head 3 to rotate by turning handle 1, thus cutter head 3 drives screw turns to carry out the degree of tightness of screw.But such screwdriver rotates by manpower completely, use compare effort and direction is also wayward, convolution use may be caused in rotation process more not inconvenient.Therefore, occur that some can realize the ratchet screwdriver of one direction idle running, disclosed in Chinese patent CN2307658Y " hidden ratchet screw driver " and " a kind of Combined ratchet screw driver " disclosed in Chinese patent CN2900088Y, Combined ratchet screw driver disclosed in CN2307658Y comprises spring, extension bar 33 and drive link 44 and by positioning ratchet wheel 41, the ratchet group that left-hand ratchet 42 and dextrad ratchet 42 form, location parts such as lug 445 grade, Combined ratchet screw driver disclosed in CN2900088Y comprises Connection Block, sleeve, brake block, the structures such as arcuated sliding bush, two ratchet screwdriver although it is so all can realize the unidirectional idle running of this screwdriver, but such screwdriver structure is complicated, volume is larger, and assembling and make production stage also more complicated, easily because the damage of a finding or disappearance cause screwdriver to use dumb with break down.
Summary of the invention
Technical problem to be solved by this invention be provide for above-mentioned prior art present situation a kind of simple and compact for structure, volume is little and can realize one direction idle running screwdriver.
The present invention solves the problems of the technologies described above adopted technical scheme: a kind of screwdriver of ratchet mechanism, comprise the anterior cavity for connecting screw jet blade, the front bar of gear member centered by rear portion, anterior for base portion rear portion be rear bar and the handle of connecting portion, described sun gear member is inserted described base portion and is connected with described base portion and rotates in described base portion, it is characterized in that: also comprise two pieces of left sides, right locking plate and middle control strip, the outside cover of described base portion has the rotation controlling rotation direction pullover, described base portion periphery have accommodating two pieces of left sides, two containing grooves of right locking plate and middle control strip, two pieces of described left sides, the inboard card end of right locking plate to be conflicted with sun gear member from left and right both direction respectively and is coordinated in two of described base portion containing grooves, described middle control strip is located at a described left side, right locking plate and described rotation pullover between, on a described left side, be provided with between right locking plate and described middle control strip and make a described left side, right locking plate keeps the elastic component with described sun gear member conflict trend, a described left side, the struck side, outside of right locking plate is extended outer and two arc grooves of inner surface pullover with described rotation respectively of two containing grooves of described base portion and is coordinated, described sun gear member energy selectable one-way is dallied or twist-lock.Such structure can make sun gear member realize the one direction idle running of twist-lock and both direction, enables rear bar relative to the idle running of front bar one direction, and then can not circle round when the turn of the screw cutter.
Preferably, described elastic component is two springs, and described middle control strip has two projections and is connected and fixed two springs respectively.
In order to more firmly can must fix front bar rear bar and rotate pullover, the front end of described base portion also has stretches out the pullover outer screw thread of rotation, and fixed cover is enclosed within front bar, and by the screw thread of fixed cover inner face and being threaded of described base portion.
More preferably, and described left and right locking plate is " convex " font, and described inboard card end is wider one end of " convex " font, and described struck side, outside is the narrower one end of " convex " font.
In order to rotate pullover more easily and locate, described base portion outer surface is provided with the built-in spring of spring eye and steel ball, and accordingly, described rotary sleeve in front side surface arranges three steel bead grooves matched.
The conveniently rotation direction of regulable control sun gear member, the pullover outer surface of described rotation has ridge design.
Conveniently operate, described connecting portion has ridge design, described connecting portion is for connecting outer handle.
Compared with prior art, the invention has the advantages that operation that can be convenient and simple rotates pullover, adjust the rotation direction of sun gear member, realize the locking of the spin locking of gear, suitable, counterclockwise two single direction rotations, user can be made can to realize unidirectional idle running in operation, and rotation screw cutter realizes the degree of tightness of screw like a cork.
Accompanying drawing explanation
Fig. 1 is the perspective view of screwdriver in the embodiment of the present invention.
Fig. 2 is the three-dimensional exploded view of screwdriver in the embodiment of the present invention.
Fig. 3 is the three-dimensional cutaway view of the base portion of screwdriver in the embodiment of the present invention.
Fig. 4 is the locking plate of screwdriver in the embodiment of the present invention and the schematic perspective view of center control strip.
Fig. 5 is the front bar of screwdriver in the embodiment of the present invention and rotates pullover three-dimensional exploded view.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail.
Fig. 1 is the stereogram of screwdriver of the present invention, and the screwdriver in this figure has assembled, and comprises front bar 1 and rear bar 2, and is enclosed within the rotation pullover 3 in rear bar 2 and the fixed cover 7 between front bar 1 and rear bar 2.Fig. 2 is the three-dimensional exploded view of screwdriver of the present invention, as shown in FIG., front bar 1 comprises anterior for being fixedly connected with the cavity 11 of driver bit and being positioned at the sun gear member 12 at cavity 11 rear portion, the driver bit that described cavity 11 may be used for connecting different types screws or unclamps various dissimilar screw, rear bar 2 comprises connecting portion 22 and base portion 21, the front end of base portion 21 has screw thread 24, the diameter dimension of base portion 21 is greater than connecting portion 22, this connecting portion 22 can be connected and installed various types of handle for handled easily, and connecting portion 22 has the decorative pattern 23 of some projections, connect various types of handle for convenient or be convenient to rotating operation.The base portion 21 of rear bar 2 forms the sun gear member 12 of a cavity for accommodating front bar 1, sun gear member 12 is positioned at the cavity of the base portion 21 of rear bar 2 completely and is connected with rear bar 2, and when outside does not add other parts any, rear bar 2 and front bar 1 can relatively be rotated, wherein any one rotation of front bar 1 or rear bar 2 all can not drive another to rotate, preferably, sun gear member 12 and base portion 21 are interconnected by pin.
The base portion 21 of rear bar 2 have two containing grooves 25, as shown in Figure 2, these two containing grooves 25 are two symmetrical grooves, and the sun gear member 12 of containing groove 25 exposed portion, two pieces of locking plates 41 are provided with in this containing groove 25, 42, preferably, locking plate 41, 42 all in " convex " font, wherein " convex " font locking plate 41, 42 wider one namely inboard card end in containing groove 25, prop up sun gear member 12, other end i.e. struck side, outside is stretched out from the containing groove 25 of base portion 21 and is exposed to outside, described locking plate 41, 42 and sun gear member 12 form a ratchet mechanism, two panels locking plate 41 in containing groove 25, center control strip 6 is stamped on 42, as shown in Figure 4, this center control strip 6 has two projections 61 and fixes two springs 5 respectively, these two springs 5 prop up the locking plate 41 in containing groove 25 respectively, 42, as Fig. 2, shown in Fig. 3, on rib 26 between two grooves 25 that part between two projections 61 of center control strip 6 is just in time fixed on base portion 21, center control strip 6 and locking plate 41, after in 42 containing grooves 25 being located at base portion 21, by extrusion spring 5 just in time its profile match with base portion 21, fill up the part between the containing groove 25 of base portion 21 and containing groove 25, only has locking plate 41, namely narrower one end of " convex " font of 42 stretches out struck side, outside from containing groove 25.And as shown in Figure 5, base portion 21 also has a spring eye 29 at the opposite side of containing groove 25, is provided with spring 28 and steel ball 27 in spring eye 29, steel ball 27 emersion, in the surface of base portion 21, stressedly can to stretch in spring eye 29.
As shown in Fig. 3,5, the inner side rotating pullover 3 has two symmetrical arc grooves 32, these two arc grooves 32 are just being used on and are holding the struck side, outside that locking plate 41,42 stretches out in base portion 21, make rotation pullover 3 can be enclosed within the outside of base portion 21 smoothly and can not mutually depart from, and described rotation pullover 3 also have three steel bead grooves 33 of accommodating steel ball 27.After two pieces of locking plates 41,42 stretch out base portion 21, the struck side in outside is positioned at the arc groove 32 rotated inside pullover 3, sun gear member 12 is just in time propped up under the effect of two springs 5 on the inboard Ka Duan center control strip 6 of locking plate 41,42, under these circumstances, sun gear member 12 is propped up by two pieces of locking plates 41,42 and can not relative to base portion 21 left-right rotation in base portion 21, the steel ball 33 of base portion 21 is just in time stuck in one of three steel bead grooves 33 centres rotating pullover 3, and this position is rotation lock location.Now, because sun gear member 12 can not be rotated in base portion 21, interfix between front bar 1 and rear bar 2, front bar 1 and rear bar 2 can not relatively rotate, and any rotation of rear bar 2 has all driven front bar 1 rotating in same direction.
When rotating clockwise the state rotated shown in pullover 3 to Fig. 3, when making the struck side, outside of one piece of locking plate 41 in one of them arc groove 32 of rotation pullover 3 prop up the edge of this arc groove 32, the steel ball 27 on base portion 21 surface is stuck in one of them of both sides in three steel bead grooves 33 rotating pullover 3 and matches and be fixed on this position.As shown in the sectional view of Fig. 3, because the effect at arc groove 32 edge, the inboard card end of this locking plate 41 is upturned and extrudes the spring 5 above it, in such a state, relieve the locking effect of locking plate 41 pairs of sun gear member 12, and the locking plate 42 of another side still has the effect blocking location to sun gear member 12, therefore sun gear member 12 can only rotate along the clockwise direction shown in Fig. 3 relative to base portion 21 and can not be rotated counterclockwise in base portion 21 under these circumstances.Now, when rear bar 2 rotates along pin inverse shown in Fig. 3, rotating pullover 3 along with the base portion 21 of rear bar rotates counterclockwise too, and front bar 1 is because the locking eliminating locking plate 41 pairs of sun gear member 12 would not follow rear bar 2 to rotate counterclockwise; But when rear bar 2 driven rotary pullover 3 rotates clockwise, due to the effect of locking plate 42 between front bar 1 and rear bar 2, front bar 1 follows rear bar 2 to rotate, and under that is such state, rear bar 2 creates idle running when rotating counterclockwise as shown in Figure 3.
In like manner, same with reference to Fig. 3, when rotate pullover 3 along Fig. 3 be rotated counterclockwise the one end making locking plate 42 prop up sun gear member 12 be upturned extrusion spring 5 time, relieve the locking of locking plate 42 pairs of sun gear member 12, and locking plate 41 still can prop up sun gear member 12, sun gear member 12 can be rotated along the counter clockwise direction shown in Fig. 3.As long as now counterclockwise rotate rear bar 2, front bar 1 also can be rotated counterclockwise simultaneously, and when rear bar 2 turns clockwise, front bar 1 can not and then be rotated, and now, achieves the clockwise idle running of rear bar 2.Therefore by such structure, can realize controlling the clockwise idle running of this screwdriver or dally counterclockwise, so when using screwdriver, due to the unidirectional idle running of rear bar 2, the screw be connected on front bar 1 driver bit and then can not be circled round, make the use of this screwdriver convenient laborsaving.And the outside rotating pullover 3 has ridge design 31, conveniently can rotate and rotate pullover 3 and come locking to sun gear member 12 and one-directional rotation lock function, and then realize the unidirectional idle running of screwdriver.
Described sun gear member 12, two pieces of locking plates 41,42 and center control strip 6 and rotate pullover 3 form the ratchet mechanism coordinated, can control centre's gear member 12 one-directional rotation, user can be made can to realize the unidirectional idle running of screwdriver in operation, and rotation screw cutter realizes the degree of tightness of screw like a cork.
Rotate pullover 3 be enclosed within the base portion 21 of rear bar 2 after, the screw thread 24 of base portion 21 front end still stretches out and rotates outside pullover 3, now more threaded for inner face tool fixed cover 7 is enclosed within this screw thread 24 position, more firmly can fixes and rotate pullover 3 and front bar 1, rear bar 2.
In addition to the implementation, the present invention also includes other embodiments, the technical scheme that all employing equivalents or equivalent substitute mode are formed, within the protection domain that all should fall into the claims in the present invention.
Claims (7)
1. a screwdriver of ratchet mechanism, comprise front bar (1), rear bar (2) and handle, the front portion of described front bar (1) is the cavity (11) of connecting screw jet blade, gear member (12) centered by the rear portion of described front bar (1), the front portion of described rear bar (2) is base portion (21), the rear portion of described rear bar (2) is connecting portion (22), described sun gear member (12) is inserted described base portion (21) and is connected with described base portion (21) and rotates in described base portion (21), it is characterized in that: also comprise two pieces of left sides, right locking plate (41, 42) and middle control strip (6), the outside cover of described base portion (21) has the rotation pullover (3) controlling rotation direction, described base portion (21) periphery have accommodating two pieces of left sides, right locking plate (41, 42) and two containing grooves (25) of middle control strip (6), two pieces of described left sides, right locking plate (41, 42) inboard card end to be conflicted with sun gear member (12) from left and right both direction respectively and is coordinated in two containing grooves (25) of described base portion (21), described middle control strip (6) is located at a described left side, right locking plate (41, 42) and between described rotation pullover (3), on a described left side, right locking plate (41, 42) and be provided with between described middle control strip (6) and make a described left side, right locking plate (41, 42) elastic component with described sun gear member (12) conflict trend is kept, a described left side, right locking plate (41, 42) struck side, outside extend described base portion (21) two containing grooves (25) outward and respectively two arc grooves (32) of the inner surface of pullover with described rotation (3) match, described sun gear member (12) can be dallied or twist-lock by selectable one-way.
2. screwdriver of ratchet mechanism as claimed in claim 1, it is characterized in that: described elastic component is two springs (5), described middle control strip (6) has two projections (61) and is connected and fixed two springs (5) respectively.
3. screwdriver of ratchet mechanism as claimed in claim 2, it is characterized in that: the front end of described base portion (21) also has stretches out rotation pullover (3) screw thread outward (24), fixed cover (7) is enclosed within front bar (1), and is connected with the screw thread (24) of described base portion (21) by the screw thread of fixed cover (7) inner face.
4. the screwdriver of ratchet mechanism as described in any one of claim 1-3, it is characterized in that: described left and right locking plate (41,42) is " convex " font, described inboard card end is wider one end of " convex " font, and described struck side, outside is the narrower one end of " convex " font.
5. the screwdriver of ratchet mechanism as described in any one of claim 1-3, it is characterized in that: described base portion (21) outer surface is provided with spring eye (29), built-in spring (28) and steel ball (27), accordingly, the inboard surface of described rotation pullover (3) arranges three steel bead grooves (33) matched.
6. the screwdriver of ratchet mechanism as described in any one of claim 1-3, is characterized in that: described rotation pullover (3) outer surface has ridge design (31).
7. the screwdriver of ratchet mechanism as described in any one of claim 1-3, is characterized in that: described connecting portion (22) has ridge design (23), and described connecting portion (22) is for connecting outer handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010135122.3A CN102198648B (en) | 2010-03-25 | 2010-03-25 | Screwdriver of ratchet mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010135122.3A CN102198648B (en) | 2010-03-25 | 2010-03-25 | Screwdriver of ratchet mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102198648A CN102198648A (en) | 2011-09-28 |
| CN102198648B true CN102198648B (en) | 2015-05-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010135122.3A Active CN102198648B (en) | 2010-03-25 | 2010-03-25 | Screwdriver of ratchet mechanism |
Country Status (1)
| Country | Link |
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| CN (1) | CN102198648B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203471672U (en) * | 2013-09-18 | 2014-03-12 | 慈溪市诚佳五金工具有限公司 | Ratchet wheel screwdriver |
| CN104191400B (en) * | 2014-08-25 | 2016-09-07 | 慈溪市诚佳五金工具有限公司 | A kind of ratchet structure of screwdriver |
| WO2019046991A1 (en) * | 2017-09-05 | 2019-03-14 | 慈溪市诚佳五金工具有限公司 | Screwdriver |
| CN110355711A (en) * | 2019-08-14 | 2019-10-22 | 李理 | A kind of screwdriver with ratchet structure |
| CN111993895B (en) * | 2020-08-28 | 2022-01-18 | 湖北航天技术研究院特种车辆技术中心 | Automatic device and electric motor car that drops of on-vehicle high voltage battery package |
| CN114670149B (en) * | 2022-03-31 | 2023-07-21 | 华能伊敏煤电有限责任公司 | Impeller dismantling device with damping |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2201214Y (en) * | 1993-12-30 | 1995-06-21 | 徐宏奇 | Ratchet screwdriver |
| US5749271A (en) * | 1996-06-24 | 1998-05-12 | Liu; Tasi-Fa | Dual purpose ratchet screwdriver |
| CN2283550Y (en) * | 1996-04-11 | 1998-06-10 | 庄正雄 | Control structure for ratchet screwdriver |
| CN2920550Y (en) * | 2006-05-24 | 2007-07-11 | 义成工厂股份有限公司 | Screwdriver capable of one-directional acting |
| CN201625945U (en) * | 2010-03-25 | 2010-11-10 | 孙成纲 | Screwdriver with ratchet mechanism |
-
2010
- 2010-03-25 CN CN201010135122.3A patent/CN102198648B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2201214Y (en) * | 1993-12-30 | 1995-06-21 | 徐宏奇 | Ratchet screwdriver |
| CN2283550Y (en) * | 1996-04-11 | 1998-06-10 | 庄正雄 | Control structure for ratchet screwdriver |
| US5749271A (en) * | 1996-06-24 | 1998-05-12 | Liu; Tasi-Fa | Dual purpose ratchet screwdriver |
| CN2920550Y (en) * | 2006-05-24 | 2007-07-11 | 义成工厂股份有限公司 | Screwdriver capable of one-directional acting |
| CN201625945U (en) * | 2010-03-25 | 2010-11-10 | 孙成纲 | Screwdriver with ratchet mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102198648A (en) | 2011-09-28 |
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