CN2723124Y

CN2723124Y - Tool ratchet wheel device with rotary disc

Info

Publication number: CN2723124Y
Application number: CN 200420092472
Authority: CN
Inventors: 李万传; 曾恺中
Original assignee: TENGDA TOOL INDUSTRIAL Co Ltd
Current assignee: TENGDA TOOL INDUSTRIAL Co Ltd
Priority date: 2004-09-17
Filing date: 2004-09-17
Publication date: 2005-09-07
Anticipated expiration: 2014-09-17

Abstract

The utility model provides a tool ratchet wheel device with rotary disc. A wrenching rod with an inner ring ratchet wheel tooth is equipped with a ratchet wheel head for clamping to drive which is provided with two cutting grooves. The two cutting grooves are respectively provided with two clamping blocks with the ratchet wheel. A rotating disc with a rorating axis is mounted in the ratchet wheel head. The rorating axis can choose and pull one of the two clamping blocks to shrink inward. The switching direction of application of force operation is controlled and chosen by the rotating disc, and the switching direction is in opposite to the quick rotating direction of the ratchet wheel head driven by the rotating disc. The ratchet wheel head is clamped to not follow to rotate when the ratchet wheel head is anti-switched. The rotating disc can be quick operated with the same application of force direction of the wrenching rod, and the direction of application of force operation is easily chosen to switch to achieve the effectiveness of convenient use when the rotating disc is anti-rotated.

Description

Instrument ratchet device with rolling disc

Technical field

The utility model provides a kind of instrument ratchet device with rolling disc, it is to utilize rolling disc to select to collude to draw in the clipping block to contract, so that replacing, clipping block drives the rotation fast of ratchet head do, and when the backward rotation rolling disc, the selection that can make application of force direction of operating is switched, so that the instrument ratchet device with rolling disc that the user manipulates.

Background technology

In existing technology, see also Fig. 1, it shows the ratchet tool with rolling disc of habit formula one, it is to offer bearing 101 at plate stem 10 1 ends, for installing one ratchet head 11, these ratchet head 11 1 ends are start post 111, relative then moulding one rolling disc 112 of holding in addition, 112 of start post 111 and rolling discs then encircle establishes ratchet 113, bearing 101 1 sides offer a grooving 102 in addition, for the clipping block 12 that installing one has a ratchet, this clipping block 12 also can be replaced piece 13 and by one and switches switch 14 controls and switch, to select the application of force direction of operating of plate stem 10.See also Fig. 2, to unscrew object, after plate stem 10 application of forces unscrew object, for object is got loose fast, the user can follow direct rotation rolling disc 112, drives start post 111 by rolling disc 112 and rotates, and do not need forward and reverse blocked operation plate stem 10, make object to get loose fast, this is the effect that rolling disc 112 is provided with; Yet the ratchet tool of this kind kenel, because of its control to mechanism be the side of being located at ratchet head 11, will make that the volume of entire tool is bigger, also seem comparatively heavy in the use.In order to improve this situation, have then the dealer will control to mechanism be located on the ratchet head, to reduce the volume of instrument; See also Fig. 3, it shows another kind of habit formula, promptly practise the ratchet tool with rolling disc of formula two, its be plate stem 20 1 ends offer have in the ring ratchet 202 bearing 201, for installing one ratchet head 21, these ratchet head 21 1 ends are start post 211, relative then moulding one rolling disc 212 of holding in addition, 212 of start post 211 and rolling discs then offer a grooving 213, in this grooving 213 with a pivot 25 clipping block 22 with ratchet that is pivoted, this clipping block 22 also can be replaced piece 23 and by one and switch bull stick 24 control switchings, to select the application of force direction of operating of plate stem 20.See also the 4th figure, when the plate stem 20 counterclockwise application of forces unscrew object, because clipping block 22 right side ratchets 222 are subjected to replacing the elasticity of piece 23 and replace, and protrude and interior ring ratchet 202 clips, 221 of the ratchets in left side are resisted against grooving 213 walls, so plate stem 20 can utilize the left side ratchet 221 of clipping block 22 to be resisted against grooving 213 walls when rotating counterclockwise, and the space of contracting in not having, and then drive ratchet head 21 rotates counterclockwise.See also Fig. 5, after getting loose, directly change and adopt when rotating counterclockwise rolling disc 212, because plate stem 20 is for maintaining static state, when therefore rotating counterclockwise rolling disc 212, the right side ratchet 222 of clipping block 22 can be subjected in the ring ratchet 202 pushing and in contract, rolling disc 212 just can rotate counterclockwise, and what the user just can be directly identical rotates rolling disc 212 with counter clockwise direction, and object can be got loose fast; See also Fig. 6, in the time will doing the switching of application of force direction of operating, switching bull stick 24 is to do counterclockwise rotation, so that the left side ratchet 221 of clipping block 22 protrudes and interior ring ratchet 202 clips, and this switches bull stick 24 anticlockwise switchings rotations, but be same as the direction that ratchet head can rotate counterclockwise, rotating at switching bull stick 24 must be with bigger strength to overcome under the elastic force of replacing piece 23, rotate counterclockwise switching bull stick 24 and will can drive ratchet head on the contrary in company with rotation, and can't do the switching of direction, therefore switching bull stick 24 desires rotates counterclockwise when switching, must hold the start post of rolling disc 212 or below with another, prevent in company with rotating to fix ratchet head 21, switch bull stick 24 and could do the switching of identical rotation direction with ratchet head, though therefore the ratchet tool of this kind kenel can improve the volume problem of instrument, but produce the problem that is difficult for manipulating.

Summary of the invention

The purpose of this utility model is the defective that overcomes above-mentioned prior art, a kind of instrument ratchet device with rolling disc is provided, but it is the ratchet head by installing one clip transmission on the plate stem of ring ratchet in having, offer two groovings on this ratchet head, for installing two clipping blocks with ratchet respectively, another rolling disc with rotating shaft is to be installed in the ratchet head, and can rotating shaft select to collude to draw wherein to contract in the clipping block, and make the overhanging interior ring ratchet engagement with plate stem of another clipping block, and be resisted against the grooving wall of the first side of ratchet; In view of the above, when pulling plate stem, can utilize the overhanging clipping block of interior ring ratchet engagement pushing and pressing of plate stem, and make clipping block ejection grooving wall, and then drive the ratchet head rotation, with application of force operation tool, and when changing directly by turn disc, the clipping block that contracts in can being pushed against by the rotating shaft of rolling disc rotates and make the clipping block ejection drive ratchet head, with quick operation tool, and can provide operator scheme fast by rolling disc.

Another purpose of the present utility model is a kind of instrument ratchet device with rolling disc that provides, but wherein in having, install the ratchet head of a clip transmission on the plate stem of ring ratchet, offer two groovings on this ratchet head, for installing two clipping blocks with ratchet respectively, another rolling disc with rotating shaft is to be installed in the ratchet head, and can rotating shaft select to collude to draw wherein to contract in the clipping block, and make the overhanging interior ring ratchet engagement with plate stem of another clipping block, and be resisted against the grooving wall of the first side of ratchet; In view of the above, when the backward rotation rolling disc, ratchet head is subjected to the reverse pushing and pressing of ring ratchet in the plate stem because of overhanging clipping block, make clipping block ejection grooving wall, and make the ratchet head can't be in company with rotation, rolling disc be convertible collude to draw contract in the overhanging clipping block, the clipping block that contracts in former then changes over overhanging state, switching to the use of another application of force direction of operating, and then the operator scheme that can facilitate and switch by rolling disc.

The purpose of this utility model realizes by the form technical scheme, the instrument ratchet device with rolling disc provided by the utility model, and it includes:

Plate stem: the bearing of ring ratchet in its end is offered and had;

Ratchet head: it is to be installed in the bearing of plate stem, and this ratchet head lower end is a start post, offer on the body two directly to grooving and always to big footpath axis hole, and big footpath axis hole is communicated with two groovings;

Rolling disc: the disk body lower end is to convex with a rotating shaft, and this rotating shaft also is placed in the big footpath axis hole of ratchet head, and rotating shaft one side also forms two and colludes piece;

Two clipping blocks: be to be installed in respectively in two groovings of ratchet head, its outer ring surface be provided with ratchet with the interior ring ratchet engagement clip of plate stem, the side of two clipping blocks also convexes with to piece, with the rolling disc rotating shaft collude that piece is corresponding to be replaced, and can stretch out or shrink by rolling disc control.

Understand in depth for having further, enumerate a preferred embodiment now, and conjunction with figs. is described in detail the utility model.

Description of drawings

Fig. 1 practises the parts explosion of formula one ratchet tool;

Fig. 2 practises the use schematic diagram of formula one ratchet tool;

Fig. 3 practises the parts explosion of formula two ratchet tools;

Fig. 4 practises the schematic diagram that formula two ratchet tools are manipulated by plate stem;

Fig. 5 practises the schematic diagram that formula two ratchet tools are manipulated by rolling disc;

Fig. 6 practises formula two ratchet tools and makes the schematic diagram that application of force direction of operating switches;

Fig. 7 parts explosion of the present utility model;

Fig. 8 combination appearance figure of the present utility model;

The schematic diagram that Fig. 9 the utility model is manipulated as the application of force by plate stem;

Figure 10 the utility model plate stem do oppositely to reset schematic diagram;

The schematic diagram that Figure 11 the utility model is manipulated by rolling disc;

Figure 12 the utility model rolling disc can't drive the counter-rotational schematic diagram of ratchet head;

Figure 13 the utility model rolling disc is made the schematic diagram that application of force direction of operating switches;

Use schematic diagram after Figure 14 the utility model application of force direction of operating switches.

The assembly numbering:

Habit formula part:

10 plate stems; 101 bearings; 102 groovings; 11 ratchet heads; 111 start posts; 112 rolling discs; 113 ratchets; 12 clipping blocks; 13 replace piece; 14 change-over switches; 20 plate stems; 201 bearings; Ring ratchet in 202; 21 ratchet heads; 211 start posts; 212 rolling discs; 213 groovings; 22 clipping blocks; 221 left side ratchets; 222 right side ratchets; 23 replace piece; 24 switch bull stick; 25 pivots.

The utility model part:

30 plate stems; 301 bearings; Ring ratchet in 302; 31 ratchet heads; 311 start posts; 312 groovings; 313 groovings; 314 big footpath axis holes; 315 replace wall; 316 replace wall; 317 path axis holes; 318 decorative pearls on top of an official cap; 319 insert the hole; 32 rolling discs; 321 rotating shafts; 322 collude piece; 323 collude piece; 324 push up the groove of pulling; 325 push up the groove of pulling; 326 through holes; 33 depression bars; 331 arc grooves; 34 clipping blocks; 341 ratchets; 342 support piece; 35 clipping blocks; 351 ratchets; 352 support piece; 36 springs; 37 replace piece; 38 springs; 39 springs.

The specific embodiment

See also Fig. 7,8 and 9, ratchet device of the present utility model its mainly be an end of plate stem 30 offer have in the ring ratchet 302 bearing 301, but ratchet head 31 for installing one clip transmission, these ratchet head 31 lower ends are a start post 311, then offer on the body two directly to grooving 312,313 and always to big footpath axis hole 314, and make big footpath axis hole 314 and grooving 312,313 communicate, grooving 312,313 also replace wall 315 in side formation respectively, 316, big footpath axis hole 314 is again in start post 311 positions, be communicated with and offer a path axis hole 317, a decorative pearl on top of an official cap 318 is also installed in path axis hole 317 sides, the sidewall of big in addition footpath axis hole 314 is offered one and is inserted hole 319, for installing a spring 36 and replacing piece 37, one rolling disc, 32 belows are to convex with rotating shaft 321, this rotating shaft 321 also is placed in the big footpath axis hole 314, rotating shaft 321 1 sides form two and collude piece 322,323, in addition side then forms two tops groove 324 of pulling, 325, the center of rotating shaft 321 offers through hole 326 in addition, for installing one depression bar 33, this depression bar 33 offers arc groove 331, for the use of contracting in the decorative pearl on top of an official cap 318, and be that a design that makes sleeve break away from start post 311 fast (is designed to a known techniques owing to this takes off soon, so repeat no more), two have ratchet 341,351 clipping block 34, the 35th, be installed in the grooving 312 of ratchet head 31 respectively, in 313, and with

spring

38,39 elasticity is replaced, and can be in grooving 312, flexible in 313, two clipping blocks 34 in addition, 35 side also convexes with to piece 342,352, with with rotating shaft 321 collude piece 322,323 correspondences are replaced, and then can be by rotating shaft 321 controls two clipping blocks 34 of

rolling disc

32,35 in grooving 312, stretch out in 313 or shrink, and when stretching out, indivedual pushing tows are replaced wall 315,316, with by

clipping block

34,35 interlocks are to ratchet head 31.

See also Fig. 9, the utility model is an example to desire unscrewing object, the piece 323 that colludes of rolling disc 32 rotating shafts 321 is to contract in clipping block 35 is compressed, and clipping block 34 is not because of being colluded compressing of piece 322, and be overhanging state by the elastic force of spring 38, therefore when plate stem 30 is pulled counterclockwise, ring ratchet 302 will mesh the ratchet 341 of clipping block 34 counterclockwise in it, and clipping block 34 is replaced wall 315 because of what be resisted against grooving 312, rotate counterclockwise synchronously and can drive ratchet head 31, unscrew object with application of force operation.

See also Figure 10, when plate stem 30 is oppositely pulled clockwise, encircle ratchet 302 ratchet 341 of roof pressure clipping block 34 clockwise in it, make clipping block 34 compressible spring 38 and in contract, the interior ring ratchet 302 of plate stem 30 can be crossed over the ratchet 341 of clipping block 34, and can oppositely reset, unscrew object counterclockwise so that proceed next circulation.

See also Figure 11, when unscrewing object when unclamping, for object is got loose fast, the user can then change the mode of rotating rolling disc 32 of adopting, by the counterclockwise rotation of rolling disc 32 identical dos, when rolling disc 32 rotates counterclockwise, the colluding piece 323 and will contract of its rotating shaft 321 because of compressing in the clipping block 35, therefore when rolling disc 32 rotates,, rotate counterclockwise synchronously and can drive ratchet head 31 by rolling disc 32 by by clipping block 35 pushing tow ratchet heads 31, at this moment, the ratchet 341 of clipping block 34 contracts in inciting somebody to action, and to cross over the interior ring ratchet 302 of plate stem 30, unscrews object with quick rotation.

See also Figure 12, when unscrewing object fast, if desire oppositely to clockwise rotate rolling disc 32, this moment, ratchet head 31 itself was to clockwise rotate, and its reason is the counter-force that the interior ring ratchet 302 of plate stem 30 is produced, and will push against clipping block 34, what make that its maintenance is resisted against grooving 312 replaces wall 315, therefore itself, clockwise rotate ratchet head 31 and promptly be the state of killing, and can't clockwise rotate with regard to ratchet head 31.

See also Figure 13, utilization clockwise rotates rolling disc 32, and ratchet head 31 is the state that can't rotate of killing, continue to clockwise rotate rolling disc 32, then rolling disc 32 rotating shafts 321 collude piece 322, contract in can compressing clipping block 34, and conversion makes clipping block 35 do not colluded compressing of piece 323, and be overhanging state, and finish the switching of application of force direction of operating by the elastic force of spring 39; It should be noted that especially, clockwise rotate in the handoff procedure of making direction at rolling disc 32, ratchet head 31 is because of killing the state of being maintained fixed, and can't rotate in company with rolling disc 32, make rolling disc 32 separately backward rotation do the switching of application of force direction of operating, and must not hold the start post of ratchet head 31 belows with another, the therefore operator scheme that can facilitate and switch by rolling disc 32.

See also Figure 14, after clockwise rotating the switching of finishing application of force direction of operating when rolling disc 32, when then plate stem 30 is pulled clockwise, can use for screwing object by application of force operation change, rolling disc 32 clockwise rotates then identical driven ratchet head 31 and screws object as quick rotation synchronously.

In sum, the utility model utilizes structure Design, make rolling disc not only can do quick rotation use and switching operation modes use, and when handover operation, rolling disc switch in the direction opposite the rotating direction of ratchet head, the feasible operation that is easy to switch, and dark tool practicality and progressive.

The above is the utility model preferred embodiment, and all equalizations of being done according to the utility model claim change, and all belong to the row of the utility model claim.

Claims

1, a kind of instrument ratchet device with rolling disc is characterized in that it includes:

Plate stem: the bearing of ring ratchet in its end is offered and had;

Two clipping blocks: it is to be installed in respectively in two groovings of ratchet head, its outer ring surface be provided with ratchet with the interior ring ratchet engagement clip of plate stem, the side of two clipping blocks also convexes with to piece, with the rolling disc rotating shaft collude that piece is corresponding to be replaced, and can stretch out or shrink by rolling disc control.

2, the instrument ratchet device with rolling disc according to claim 1 is characterized in that this two clipping block is to replace in two groovings that are installed in ratchet head with spring respectively, and can be in grooving elastic telescopic.

3, the instrument ratchet device with rolling disc according to claim 1, two groovings that it is characterized in that this ratchet head are to form in a side respectively to replace wall, for clipping block replace and interlock to ratchet head.

4, the instrument ratchet device with rolling disc according to claim 1, the rotating shaft that it is characterized in that this rolling disc in addition side forms two tops groove of pulling, and offer one at the big footpath of ratchet head axis hole sidewall and insert the hole, to install spring and to replace piece, and when turn disc, replace top that piece can the be resisted against rotating shaft respectively groove of pulling, for the location.

5, the instrument ratchet device of tool rolling disc according to claim 1, the big footpath axis hole that it is characterized in that this ratchet head is in relative start post position, be communicated with and offer a path axis hole, a decorative pearl on top of an official cap is also installed in path axis hole side, the rotating shaft center of rolling disc offers through hole in addition, installing one is provided with the depression bar of arc groove in this through hole, can contract in the decorative pearl on top of an official cap when depression bar presses down, and break away from use fast for sleeve and start post.