CN103231341B - Hand-pressed self-rotation type screwdriver - Google Patents

Hand-pressed self-rotation type screwdriver Download PDF

Info

Publication number
CN103231341B
CN103231341B CN201310175078.2A CN201310175078A CN103231341B CN 103231341 B CN103231341 B CN 103231341B CN 201310175078 A CN201310175078 A CN 201310175078A CN 103231341 B CN103231341 B CN 103231341B
Authority
CN
China
Prior art keywords
pipe fitting
interior pipe
casing
shell
screw
Prior art date
Application number
CN201310175078.2A
Other languages
Chinese (zh)
Other versions
CN103231341A (en
Inventor
李光耀
孙光永
张哲硕
谭坚
Original Assignee
湖南大学
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 湖南大学 filed Critical 湖南大学
Priority to CN201310175078.2A priority Critical patent/CN103231341B/en
Publication of CN103231341A publication Critical patent/CN103231341A/en
Application granted granted Critical
Publication of CN103231341B publication Critical patent/CN103231341B/en

Links

Abstract

A hand-pressed self-rotation type screwdriver comprises a one-way mechanism, a ball screw mechanism, a returning mechanism, a (an) lower casing/upper casing and an organic sleeve. The one-way mechanism is provided with an inner pipe fitting, a limiting conduit, a pair of steel balls, a lower spring and a rear press cover. The ball screw mechanism comprises a screw and a pair of steel balls. The returning mechanism comprises two springs. By pressing the rear press cover and the screw, the screw can be obliged to carry out helical motion relative to a casing so as to achieve the effect of tightening or dismantling the screw; when pressure is removed, the returning mechanism can oblige every mechanism to return; and when the screw is tightened, only extrusion motion needs to be performed through the hand-pressed self-rotation type screwdriver, and the effects of time saving and convenience are achieved.

Description

Hand self-rotary screwdriver
Technical field
The present invention relates to a kind of screwdriver, particularly a kind of long service life, quick detachable, pressure is converted to rotatablely move, stroke is long and compression travel finishes the rear screw rod hand self-rotary screwdriver of translation reset automatically.
Background technology
In prior art, the screwdriver handling screw generally using once can only rotate half-turn, and speed is very slow.
Had a kind of left handed screw cutter and dextrorotation screwdriver, its practicality still has disappearance to exist in the past.Although this screwdriver can drive screw fast rotational, but because the screw mandrel diameter of its ball wire rod mechanism is too large, cause stroke shorter, in addition after the compression travel of screwdriver finishes, need to counter-rotate again and get back to initialization position, this in actual use the stand-by period longer, and easily block, very inconvenient.
Had electric screw driver, but the general volume of electric screw driver is larger in the past, and needs external power supply, a lot of occasions are not suitable for using.
Summary of the invention
The object of the invention be to provide a kind of long service life, quick detachable, do not need external power supply, pressure is converted to rotatablely move, stroke is relatively long and compression travel finishes the rear screw rod hand self-rotary screwdriver of translation reset automatically.
The invention provides a kind of hand self-rotary screwdriver, comprising an one-way mechanism, ball wire rod mechanism, resetting-mechanism, lower casing, upper shell and one has mantle;
Described one-way mechanism has an interior pipe fitting, a spacing conduit, a pair of steel ball, a lower spring and a rear pressing cover, this interior pipe fitting lower end is enclosed within lower casing, lower bottom part has an oblique surface, upper end is enclosed within shell, this spacing sheathed catheter is in the interstitial hole of interior pipe fitting bottom, spacing conduit has a steel ball bearing hole, the mutual correspondence of oblique surface of the steel ball bearing hole of spacing conduit and interior pipe fitting is being coated a pair of steel ball, the lower spring of this one-way mechanism is arranged between spacing conduit and interior pipe fitting bottom interstitial hole, the elasticity that this spacing conduit upper end is subject to this lower spring compresses, lower end withstands in an inside groove of lower casing, this interior pipe fitting be subject to lower spring upspring to, one trapezoid boss is arranged at this rear pressing cover top, be stuck in shell upper, one inside groove is arranged at rear pressing cover bottom,
Described ball wire rod mechanism operating position is arranged on spacing catheter interior, comprises a screw rod, a pair of steel ball;
Described resetting-mechanism comprises two springs, is arranged on interior inside pipe fitting, the butted interior pipe fitting of lower spring and spacing conduit, the butted rear pressing cover of upper spring and screw rod;
The whole tapered tubulose of described lower casing, top is provided with external screw thread, can connect with the internal thread of described upper outer casing underpart, one endoporus is arranged at this lower casing top, be enclosed within interior pipe fitting bottom, a stopper slot is arranged at this endoporus bottom, blocks spacing conduit bottom, one taper protuberance is arranged at described lower casing bottom, inside has guide hole to stretch out for screw rod;
The whole tapered tubulose of described upper shell, on this, shell upper arranges stepped hole, spacing for rear pressing cover, upper enclosure has been coated with mantle, upper shell with have mantle to bond together, upper outer casing underpart has internal thread, with described lower casing top thread connection.
Hand self-rotary screwdriver of the present invention, this interior pipe fitting lower, outer perimeter has a location outstanding, and there is a chute inside of this lower casing, outstanding being embedded in the chute of lower casing in location of interior pipe fitting, interior pipe fitting relatively lower casing slides up and down.
Hand self-rotary screwdriver of the present invention, this spacing conduit upper periphery has a location outstanding, and there is a chute the corresponding inside of this interior pipe fitting, outstanding being embedded in the chute of interior pipe fitting in location of spacing conduit, spacing conduit can only slide up and down by relatively interior pipe fitting.
Hand self-rotary screwdriver of the present invention, on this, the connection screw thread of shell, lower casing is triangle thread, has good self-locking performance.
Screw flight of the present invention is symmetrically arranged pair of screw thread, and thread segment shape bottom is and the circular arc of steel ball with radius, and top is the skew lines tangent with this circular arc, this cross sectional shape can so that: in the course of the work, screw rod and steel ball no-float; In reset, screw rod pushes up steel ball to both sides.
In the present invention, described rear pressing cover is subject to gliding after the pressure of palm, pressing interior pipe fitting glides, during past the pressing down of interior pipe fitting bottom oblique surface, steel ball can move in the both sides steel ball bearing hole of spacing conduit, embeds in screw flight track, make both sides steel ball bearing hole and the steel ball interlock of interior pipe fitting bottom oblique surface, spacing conduit produce closure function, allow ball screw mechanism generation effect, when screw rod is under pressure, can only move upward by spiral.
In the present invention, be applied to after the pressure disappearance on described screw rod, unclamp the pressure of rear pressing cover simultaneously, the spring of resetting-mechanism starts to work, and lower spring is by interior pipe fitting and rear pressing cover jack-up, and upper spring pushes up under screw rod, when screw rod is descending, steel ball in one-way mechanism is backed down along slope of thread, steel ball slides in the space reserving after the steel ball bearing hole of spacing conduit and interior pipe fitting rise, and screw rod is limited by steel ball no longer, and directly under upper spring effect, initialization position is replied in translation.
The present invention can quick-detachment, and the part of damage can quick-replaceable.
In the present invention, screw flight is made to left-handed or dextrorotation, with correspondence be respectively applicable to tightening the screw nail and two kinds of occasions of dismounting screw.
In the present invention, on screw rod, with " tightly ", " pine " printed words on laser incising, indicate and tighten use, or dismounting use.
In the present invention, indentation of mark on the excircle of lower casing bottom, the narrow limit of corresponding driver bit, determines screw rod initialization position fast for user.
Beneficial effect of the present invention is: screw rod, when being subject to upward pressure, arranges the screw flight cross section of rear pressing cover, interior pipe fitting, spacing conduit, steel ball and given shape by one-way mechanism, screw rod is spinned and rotate rising; Screw rod, after earth pressure release, by resetting-mechanism and one-way mechanism effect, makes screw rod do quick translation decline and resets; Upper and lower shell joins by triangle thread, has good self-locking action, and it is convenient to connect disassembling, assembling and replacing part; Upper shell, lower casing be shaped as tapered tubular,, have mantle and upper shell to be bonded together, the profile of formation is beneficial to user's hand and grasps screwdriver, this profile provides operating pressure while being beneficial to work, uses comfortable; Mark " pine ", " tightly " printed words and indentation, can person easy to use be used; Screw rod arranges complete driver bit, realizes quick-replaceable, the function that a cutter is multiplex.
Accompanying drawing explanation
Fig. 1 is the explosive view of hand self-rotary screwdriver of the present invention;
Fig. 2 is the cross section view of the initialization state of hand self-rotary screwdriver of the present invention;
Fig. 3 is the partial enlarged drawing of above-mentioned initialization state cross section view;
Fig. 4 is the cross section view of hand self-rotary screwdriver of the present invention in range;
Fig. 5 is the above-mentioned partial enlarged drawing in maximum travel position cross section view;
Fig. 6 is the cross section view of a certain position in hand self-rotary screwdriver reseting procedure of the present invention;
Fig. 7 is the partial enlarged drawing of certain position profile view in above-mentioned reseting procedure;
The specific embodiment
Below in conjunction with drawings and Examples, the present invention is described in detail:
Referring to Fig. 1, each part of hand self-rotary screwdriver of the present invention, comprising the spacing conduit of the interior pipe fitting of a upper shell 1,2,3, lower spring 4, lower casing 5, screw rod 6, rear pressing cover 7, a pair of steel ball 8, upper spring 9 and one has casing 10.
Referring to Fig. 2 and Fig. 3, now hand self-rotary screwdriver is in initialization state, and under this state, screw rod 6 major parts reach outside lower casing 5.Hand self-rotary screwdriver comprises shell 1, lower casing 5, one-way mechanism, ball wire rod mechanism and resetting-mechanism.One-way mechanism has an interior pipe fitting 2, a spacing conduit 3, a pair of steel ball 8, a lower spring 4 and a rear pressing cover 7, these interior pipe fitting 2 lower ends are enclosed within lower casing 5, lower bottom part has an oblique surface 22, upper end is enclosed within shell 1, this spacing conduit 3 is enclosed within the interstitial hole of interior pipe fitting 2 bottoms, spacing conduit 3 has a steel ball bearing hole 32, the steel ball bearing hole 32 of spacing conduit and the mutual correspondence of the oblique surface of interior pipe fitting 22 are being coated a pair of steel ball 8, the lower spring 4 of this one-way mechanism is arranged between spacing conduit 3 and interior pipe fitting 2 bottom interstitial holes, the elasticity that these spacing conduit 3 upper ends are subject to this lower spring 4 compresses, lower end withstands in the inside groove of lower casing 5, this interior pipe fitting 2 be subject to lower spring 4 upspring to, one trapezoid boss is arranged at these rear pressing cover 7 tops.Rear pressing cover 7 is subject to gliding after the pressure of palm, pressing interior pipe fitting 2 glides, interior pipe fitting 2 bottom oblique surfaces 22 are when pressing down, steel ball 8 can be to the both sides steel ball bearing hole 32 interior movements of spacing conduit 3, embed in screw rod 6 thread tracks 61, make both sides steel ball bearing hole 32 and steel ball 8 interlocks of interior pipe fitting bottom oblique surface 22, spacing conduit produce closure function, allow ball screw mechanism generation effect, when screw rod 6 is under pressure, can only produce screw.
Referring to Fig. 4 and Fig. 5, hand self-rotary screwdriver reaches its maximum travel position from initialization position, and screw rod 6 is substantially all within lower casing 5.And then referring to Fig. 6 and Fig. 7, be applied to after the pressure disappearance on screw rod 6, unclamp the pressure of rear pressing cover 7 simultaneously, the spring of resetting-mechanism starts to work, lower spring 4 is by interior pipe fitting 2 and rear pressing cover 7 jack-up, upper spring 9 is by 6 times tops of screw rod, when screw rod 6 is descending, steel ball in one-way mechanism 8 is backed down along slope of thread 61, steel ball 8 slides in the space reserving after the steel ball bearing hole 32 of spacing conduit 3 and interior pipe fitting 2 rise, screw rod 6 is limited by steel ball no longer, directly at upper spring 9, to translation under down spring effect, replys initialization position.
Referring to Fig. 3, Fig. 5 and Fig. 7, interior pipe fitting 2 lower, outer perimeter have a location to give prominence to 21, and there is a chute inside of this lower casing 5, and the location outstanding 21 of interior pipe fitting 2 is embedded in the chute of lower casing 5, and interior pipe fitting 2 relatively lower casing 5 slides up and down.Spacing conduit 3 upper periphery have a location to give prominence to 31, and there is a chute this corresponding inside of interior pipe fitting 2, and the location outstanding 31 of spacing conduit is embedded in the chute of interior pipe fitting 2, and spacing conduit 3 can only slide up and down by relatively interior pipe fitting 2.
Referring to Fig. 3, the connection screw thread 51 of upper shell 1, lower casing 5 is triangle thread, has good self-locking performance.
Participate in Fig. 3 and Fig. 7, screw rod 6 screw threads 62 are symmetrically arranged pair of screw thread, and thread segment shape bottom is and the circular arc of steel ball with radius that top is the skew lines tangent with this circular arc, this cross sectional shape can so that: in the course of the work, screw rod 6 and steel ball 8 no-floats; In reset, screw rod 6 pushes up steel ball 8 to both sides.

Claims (7)

1. a hand self-rotary screwdriver, it comprises shell (1), lower casing (5), one-way mechanism, ball wire rod mechanism and resetting-mechanism, it is characterized in that:
Described one-way mechanism comprises interior pipe fitting (2), spacing conduit (3), a pair of steel ball (8), lower spring (4) and rear pressing cover (7), described interior pipe fitting (2) lower end is enclosed within lower casing (5), lower bottom part is provided with oblique surface (22), described interior pipe fitting (2) upper end is enclosed within shell (1), described spacing conduit (3) is enclosed within the interstitial hole of interior pipe fitting (2) bottom, described spacing conduit (3) is provided with steel ball bearing hole (32), the oblique surface (22) of described steel ball bearing hole (32) and interior pipe fitting mutually correspondence is being coated a pair of steel ball (8), described lower spring (4) is arranged between spacing conduit (3) and interior pipe fitting (2) bottom interstitial hole, the elasticity that this spacing conduit (3) upper end is subject to this lower spring (4) compresses, lower end withstands in the inside groove of lower casing (5), this interior pipe fitting (2) be subject to lower spring (4) upspring to, trapezoid boss is arranged at described rear pressing cover (7) top, by described boss, be stuck in upper shell (1) top, one inside groove is arranged at described rear pressing cover (7) bottom,
Described ball wire rod mechanism operating position is arranged on spacing conduit (3) inside, comprises a screw rod (6), described a pair of steel ball (8);
Described resetting-mechanism comprises two springs, is arranged on interior pipe fitting (2) inside, the butted interior pipe fitting of described lower spring (4) (2) and spacing conduit (3), the butted rear pressing cover of upper spring (9) (7) and screw rod (6);
The whole tapered tubulose of described lower casing (5), top is provided with triangle external screw thread (51), can connect with the internal thread of upper shell (1) bottom, described lower casing (5) top is provided with an endoporus, be enclosed within interior pipe fitting (2) bottom, a stopper slot is arranged at this endoporus bottom, blocks spacing conduit (3) bottom, one taper protuberance is arranged at lower casing (5) bottom, inside has guide hole to stretch out for screw rod (6);
The whole tapered tubulose of described upper shell (1), shell on this (1) top arranges stepped hole, spacing for rear pressing cover (7), upper shell (1) outside has been coated with mantle (10), upper shell (1) with have mantle (10) to bond together, internal thread is arranged at upper shell (1) bottom, with lower casing (5) top thread connection.
2. hand self-rotary screwdriver as claimed in claim 1, it is characterized in that: interior pipe fitting (2) lower, outer perimeter has a location to give prominence to (21), there is a chute inside of this lower casing (5), the location of interior pipe fitting (2) outstanding (21) is embedded in the chute of lower casing (5), make interior pipe fitting (2) relatively lower casing (5) slide up and down.
3. hand self-rotary screwdriver as claimed in claim 1, it is characterized in that: spacing conduit (3) upper periphery has a location to give prominence to (31), there is a chute this corresponding inside of interior pipe fitting (2), outstanding embed (31), location of spacing conduit (3) are in the chute of interior pipe fitting (2), and spacing conduit (3) can only slide up and down by relatively interior pipe fitting (2).
4. hand self-rotary screwdriver as claimed in claim 1, is characterized in that: the connection screw thread (51) of upper shell (1), lower casing (5) is triangle thread, has good self-locking performance.
5. hand self-rotary screwdriver as claimed in claim 1, it is characterized in that: the screw thread of described screw rod (6) is symmetrically arranged pair of screw thread, thread segment shape bottom is and the circular arc of steel ball (8) with radius, top is the skew lines tangent with this circular arc, this cross sectional shape can so that: in the course of the work, screw rod (6) and steel ball (8) no-float; In reset, screw rod (6) pushes up steel ball (8) to both sides.
6. hand self-rotary screwdriver as claimed in claim 1, is characterized in that: the screw thread of screw rod (6) can be made into left-handed or dextrorotation, with correspondence be respectively applicable to tightening the screw nail and two kinds of occasions of dismounting screw.
7. hand self-rotary screwdriver as claimed in claim 1, it is characterized in that: upper shell (1) is coated with mantle (10), there is the organic material of quality softness for mantle (10), together with inner surface is adhesively fixed with upper shell (1), outer surface is coarse, keeps good friction with user's hand.
CN201310175078.2A 2013-05-13 2013-05-13 Hand-pressed self-rotation type screwdriver CN103231341B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310175078.2A CN103231341B (en) 2013-05-13 2013-05-13 Hand-pressed self-rotation type screwdriver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310175078.2A CN103231341B (en) 2013-05-13 2013-05-13 Hand-pressed self-rotation type screwdriver

Publications (2)

Publication Number Publication Date
CN103231341A CN103231341A (en) 2013-08-07
CN103231341B true CN103231341B (en) 2014-12-10

Family

ID=48879447

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310175078.2A CN103231341B (en) 2013-05-13 2013-05-13 Hand-pressed self-rotation type screwdriver

Country Status (1)

Country Link
CN (1) CN103231341B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103600326B (en) * 2013-11-23 2015-06-17 虞静丽 Torsion-adjustable screwdriver
CN104668946B (en) 2013-11-30 2017-03-01 赛恩倍吉科技顾问(深圳)有限公司 Screw fixing machine
CN104175265A (en) * 2014-08-20 2014-12-03 张家港市天华五金工具有限公司 Screwdriver
CN106214242A (en) * 2016-08-31 2016-12-14 天津正天医疗器械有限公司 Fast rotation quick change spanner
CN108214381B (en) * 2017-12-14 2019-06-14 燕山大学 Direct Action Type accumulation of energy screwdriver

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1415822A (en) * 1920-05-22 1922-05-09 North Bros Mfg Co Screw driver
US2947334A (en) * 1957-01-05 1960-08-02 Issartel Rene Antoine Marie Hand brace
US5024565A (en) * 1990-08-20 1991-06-18 Henry Pinand Hand tool
CN201565888U (en) * 2009-12-31 2010-09-01 刘勉群 Portable screw driver

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002224969A (en) * 2001-01-31 2002-08-13 Matsushita Electric Ind Co Ltd Screwdriver and method for screw driving using it

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1415822A (en) * 1920-05-22 1922-05-09 North Bros Mfg Co Screw driver
US2947334A (en) * 1957-01-05 1960-08-02 Issartel Rene Antoine Marie Hand brace
US5024565A (en) * 1990-08-20 1991-06-18 Henry Pinand Hand tool
CN201565888U (en) * 2009-12-31 2010-09-01 刘勉群 Portable screw driver

Also Published As

Publication number Publication date
CN103231341A (en) 2013-08-07

Similar Documents

Publication Publication Date Title
USD820327S1 (en) Setting sleeve
USD657314S1 (en) Power connector
NZ546479A (en) Self-drilling anchor
RU2013150800A (en) Set of dental components
AU2013322656A1 (en) Portable tool, portable expanding apparatus, hydraulic piston/cylinder arrangement and method for operating a portable tool
WO2010148318A3 (en) Flashlight with pivotable legs
CN208321524U (en) A kind of pipeline cleaning robot
CN103170424B (en) One is elevated gondola water faucet easily
CN204947491U (en) A kind of power cord wire stripper
MY155104A (en) Method for manufacturing hose assembly
CN203312261U (en) Bulb replacement disassembling and assembling device
TWM508294U (en) Ball-type rotary mop rod
MX336871B (en) Connecting structure.
WO2013126044A8 (en) Downhole clamping mechanism
TWM473901U (en) Adapter structure of power hand tool
CN103567955B (en) The quick disassembled pull bar of double handle formula draw cap and pulling plug instrument
CN203524596U (en) Speed-changeable and hand-pressing rotating mop rod
CN201547082U (en) Spiral tensioning telescopic rod
CN203126385U (en) Universal wheel of plastic wheel fork
RU2009127712A (en) Toothbrush and brush for her
CN207246387U (en) It is a kind of that there is the gear of self-lubricate
CN203279944U (en) Walking stick special for climbing mountains
CN204457609U (en) Electric controlled multi-functional derailing switch
CN204355238U (en) The folding handles of Kickboard Scooter
CN203017340U (en) Hand massage device

Legal Events

Date Code Title Description
PB01 Publication
C06 Publication
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20141210

Termination date: 20160513

CF01 Termination of patent right due to non-payment of annual fee