CN2449879Y

CN2449879Y - Screwdriver with ratchet action

Info

Publication number: CN2449879Y
Application number: CN 00259207
Authority: CN
Inventors: 陈素霞
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-11-17
Filing date: 2000-11-17
Publication date: 2001-09-26
Anticipated expiration: 2010-11-17

Abstract

The utility model relates to a screwdriver with ratchet action, which comprises a grab handle, a control structure, a connecting seat structure, an engagement structure and an output connection rod structure, wherein, the periphery of the bottom end surface of the output connection rod structure is provided with a tooth-shaped groove, but the engagement structure is provided with two elastic elements supporting two engagement sliding blocks which are respectively engaged with tooth-shaped grooves arranged on both sides of the circle diameter, and each tooth-shaped groove is provided with an equidirectional inclined plane and a corresponding open slot. The engagement state of the engagement sliding block and the tooth-shaped groove is adjusted by a control structure to control the three stages of control transmission of one-way idling alternative-direction transmission or bidirectional transmission or one-way transmission alternative-direction idling, and the connecting seat guides and holds an inner hole of the output connection rod by the cylindrical surface to ensure the output and simultaneously keep the coaxiality efficiency.

Description

Screwdriver with ratchet action

The utility model relates to ratchet tool, belongs to field of hand.

Hand-held tool of commonly using such as simple screwdriver, because of having only lever front end extension bar to extend, and make in-line or cruciform head in the extension bar front end, so action with regard to simple lock screw, after just must locking an angle, hand-held tool breaks away from screw and revolution, aim at once more and snap in, lock an angle once more, the considerable time is wasted in sealed so repeatedly action, so someone develops the hand-held tools such as screwdriver of Retchet gear type, but because this kind instrument ratchet is the serration formula and can't bears high torsion, and because necessary on the project organization part, and cause extension bar and the lever axiality in when output to have problems, cause the difficulty of adjustment work and the damage or the life-span reduction of hand-held tool.

The purpose of this utility model, be to eliminate above-mentioned shortcoming, a kind of Screwdriver with ratchet action is provided, not only can guarantee the alignment of its output extension bar and connected structure, but also the unidirectional idle running with control ratchet tool is controlled the transmission effects to three sections of idle running in addition to transmission, two-way transmission or unidirectional transmission in addition.

For achieving the above object, the utility model provides a kind of ratchet tool, comprises the affixed lever of being located at of a connecting base structure, on this connecting base structure and be provided with three sections location structures, eat and close structure and output extension bar structure, and forms with a control structure socket envelope group.

According to embodiment of the present utility model, the bottom face periphery of above-mentioned output extension bar structure is established tool plural number profile of tooth groove, and close structure and establish two flexible members and push two and eat and close in the one profile of tooth groove that slide block meshes two ends, circle footpath respectively in eating, two eat and close slide block and tool inclined-plane and corresponding open slot in the same way.

According to another embodiment of the present utility model, above-mentioned output extension bar structure can be made into the combination of output extension bar seat and four unification extension bars and tool heads, and, establish fin on the four unification extension bars, establish the wing borehole jack of tool and close and export the perforate of extension bar seat.

The utility model ratchet tool, because this output extension bar structure bottom face periphery is established tool plural number profile of tooth groove therein, and it is eaten and closes structure tool two flexible member contacts two and eat and close the one profile of tooth groove that slide block meshes both sides, circle footpath respectively, two eat and close slide block and establish tool inclined-plane and corresponding open slot in the same way, therefore eat by the adjustment of control structure and close slide block and profile of tooth engagement form, the unidirectional idle running that can control ratchet tool in addition to transmission, two-way transmission or unidirectional transmission in addition to idle running, make it to have three sections control transmission effects.In addition, because the connecting base structure of the utility model ratchet tool is led the endoporus of holding output extension bar structure with its cylinder, therefore can guarantee to export the alignment between extension bar and the connecting base.

The technology that relevant the utility model adopted, means and effect thereof are lifted a preferred embodiment and conjunction with figs. now and are described in detail as follows, and believe the above-mentioned purpose of the utility model, structure and feature, all can obtain one thus and go deep into and concrete understanding.

Fig. 1 is the utility model Screwdriver with ratchet action one preferred embodiment perspective exploded view.

Fig. 2 is the utility model Screwdriver with ratchet action one preferred embodiment combination dissected figure.

Fig. 3 is that the preferred embodiment of the utility model Screwdriver with ratchet action one is in addition to cut-away view.

Fig. 4 is another preferred embodiment perspective exploded view of the utility model Screwdriver with ratchet action.

Fig. 5 is another preferred embodiment combination dissected figure of the utility model Screwdriver with ratchet action.

Fig. 6 is that the output extension bar seat of the utility model Screwdriver with ratchet action is in addition to schematic perspective view.

Consult shown in Figure 1ly, a kind of Screwdriver with ratchet action consists predominantly of:

One lever 10 is provided with combined hole 11;

One control structure 20 includes a knob 21 and fixes an arc lamellar body 23 with rivet 22, and tool inclined-plane 231 is established at the two ends of arc lamellar body 23 respectively, and knob 21 surperficial tool lugs represent that direction while tool revolves the anti-skidding effect of control;

One connecting base structure 30 comprises a cylinder 31, a hexagonal bar section 32, a C shape wire casing 33 and falls into groove 34, an annular groove 35 and a circular hole 36;

One eats and closes structure 40, includes two and eats and close slide block 41, two flexible members 42;

One output extension bar structure 50 includes an endoporus 51, and tool C shape wire casing 52 in the endoporus 51, the bottom face periphery of output extension bar structure 50 is established tool profile of tooth groove 53.

Consult shown in Figure 2, by combinations thereof, lever 10 combined holes 11 get the hexagonal bar section 32 of secure bond connecting base structure 30, connecting base structure 30 front end C shape wire casings 33 must be for behind the cover group C shape snap the line 60, to export extension bar structure 50 endoporus 51 with brute force urges in connecting base structure 30 front end cylinders 31, C shape snap the line 60 is blocked C shape wire casing 52 in output extension bar structure 50 endoporus 51 and the spacing extension bar structure 50 of firmly exporting, and just can appropriate cover group cylinder 31 with endoporus 51 degree of depth and aperture, and be the axiality of cylinder 31 correctings output extension bar structure 50, the two corresponding grooves 34 that fall into of connecting base structure 30 make ups respectively and eat the flexible member 42 that closes structure 40 and eat and

close slide block

41,35 of the annular grooves of connecting base structure 30 are placed arc lamellar body 23,36 appearance groups of circular hole steel ball spring 61, and live connecting base structure 30 by output extension bar structure 50 cover group knobs 21 big envelopes, and, form Screwdriver with ratchet action according to this with rivet 22 riveted fixed knobs 21 and arc lamellar body 23.

Consult Fig. 2, shown in Figure 3, it mainly establishes tool profile of tooth groove 53 at the bottom face periphery of output extension bar structure 50, two eat and close slide block 41 tools inclined-plane 411 and corresponding open slot 412 in the same way, two eat and close slide block 41 to be respectively flexible member 42 contacts be to be engaged in the one profile of tooth groove 53 at two ends, output extension bar structure 50 circle footpath, also keeping eating the open slot 412 that closes slide block 41 simultaneously has 2/3rds to aim at the annular groove 35 of connecting base structures 30, according to this when knob 21 turns and interlock arc lamellar body 23, the inclined-plane 231 of arc lamellar body 23 is to be able to be inserted to eat by this open slot 412 places of appearing close slide block 41, and inclined-plane 231 rear arc lamellar bodies 23 press to eat and close slide block and contract and compression elastic element 42 for 41 times, and break away from engaging teeth connected in star 53:

By its above-mentioned learning, knob 21 drives the control of cutting of arc lamellar body 23, reached three kinds of control forms, one is: eat and close 41 of slide blocks when arc lamellar body 23 is positioned at two or two, and without any roof pressure eat when closing slide block 41 action, steel ball spring 61 is just to peak at knob 21 centrally-located grooves 212, at this moment, two eat and close the profile of tooth groove 53 that slide block all is engaged in output extension bar structure 50, and because of inclined-plane 411 for dividing in the same way according to both sides, circle footpath, make its lever 10 no matter rotate either direction all have eat close slide block 41 face 413 pushing tow transmissions output extension bar structure, 50 synchronization actions directly;

They are two years old, three are: when arc lamellar body 23 is eaten when closing slide block and contracting for 41 times for knob 21 interlock roof pressure one, be only to eat to close

slide block

41 and 53 engagements of profile of tooth groove, this moment, 61 of steel ball springs peaked at the one detent 211 or 213 of knob 21 2 side detents, according to this when lever 10 rotation to closing slide block 41 inclined-planes 411 in the same way the time with eating of engagement, inclined-plane 411 is to form idle running for 54 synthlipsis of profile of tooth groove 53 projections, and lever 10 rotation directions are closed slide block 41 inclined-planes 411 oppositely the time with eating, eat close slide block 41 face directly 413 pushing tow transmission output extension bar structure 50 synchronization actions, reach unidirectional idle running in addition to transmission or unidirectional transmission in addition to two control actions of idle running.

Consult Fig. 4, Fig. 5, shown in Figure 6, it is another embodiment schematic diagram of the present utility model, it mainly becomes the combination of output extension bar seat 55 and four unification extension bars 56 and tool heads 57 in change output extension bar structure 50 ', establish fin 561 on the four unification extension bars, and 55 perforates 551 of output extension bar seat are established the wing hole 552 of tool for fits, and connecting base 30 also cooperates and establishes tool perforate 37 confession extension bars and run through plant.

The foregoing description, only in order to illustrate the utility model, according to this not from the scope of the utility model spirit, those who familiarize themselves with the technology with and the various distortion done, modify and application, all should be included in category of the present utility model.

Claims

1, a kind of Screwdriver with ratchet action is characterized in that this ratchet tool is to drive the affixed lever of being located at of joint chair structure by one, on this imperial joint chair structure and be provided with three sections location structures, eat and close structure and output extension bar structure, and forms with a control structure socket envelope group.

2, Screwdriver with ratchet action according to claim 1 is characterized in that this connecting base structure comprises that an annular groove, two falls into groove, a cylinder, a C shape wire casing, a circular hole and hexagonal bar section.

3, Screwdriver with ratchet action according to claim 2 is characterized in that the hexagonal bar section of this connecting base must be thought four angular poles or other geometric shape bodies of rod.

4, Screwdriver with ratchet action according to claim 1 is characterized in that this lever establishes tool hexagon combined hole.

5, Screwdriver with ratchet action according to claim 4 is characterized in that this lever hexagon combined hole must think quadrangle or other geometric shape combined holes.

6, Screwdriver with ratchet action according to claim 1 is characterized in that this is eaten to close structure and comprise that two eat and close slide block, two flexible members, and wherein this two is eaten and close slide block tool inclined-plane and corresponding open slot in the same way.

7, Screwdriver with ratchet action according to claim 1 is characterized in that this output extension bar structure comprises an endoporus, and tool C shape wire casing in it, the bottom face periphery of this output extension bar structure are established tool plural number profile of tooth groove.

8, Screwdriver with ratchet action according to claim 7, the combination that it is characterized in that this output extension bar structure or make output extension bar seat and four unification extension bars and tool heads, and, establish fin on the four unification extension bars, establish the wing borehole jack of tool and close and export the perforate of extension bar seat.

9, Screwdriver with ratchet action according to claim 1 is characterized in that these three sections location structures include the circular hole of steel ball spring, connecting base structure and three detents of knob inner face.

10, Screwdriver with ratchet action according to claim 1, it is characterized in that this control structure include a knob with rivet in conjunction with an arc lamellar body, this arc lamellar body two end tool inclined-planes, and the arc lamellar body is limited in slippage in the connecting base structure annular groove.

11, Screwdriver with ratchet action according to claim 1 is characterized in that the endoporus that the outstanding cylinder of this connecting base structure must cover group output extension bar structure, keeps the axiality of output according to this.

12, Screwdriver with ratchet action according to claim 10 is characterized in that the knob surface tool sign direction while tool of this control structure revolves the lug of the anti-skidding effect of control.

13, Screwdriver with ratchet action according to claim 1 is characterized in that this output extension bar structure and connecting base structure set up C shape wire casing separately, does not break away from the relevant position of spacing two members of C shape snap the line.

14, Screwdriver with ratchet action according to claim 13 is characterized in that this C shape snap the line is able to pin rod and replaces, and wherein pin rod is inserted to tie by output extension bar structure pin-and-hole and is fixed in connecting base structure C shape wire casing.