CN2423983Y

CN2423983Y - Fast dropping structure of jacket

Info

Publication number: CN2423983Y
Application number: CN 00217492
Authority: CN
Inventors: 谢智庆
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-04-29
Filing date: 2000-04-29
Publication date: 2001-03-21
Anticipated expiration: 2010-04-29

Abstract

The utility model discloses a fast dropping structure of a sleeve, which mainly comprises a sleeve connecting rod, a braking rod, a push rod and a regulating wheel, wherein, the tail end of the braking rod forms an oblique conical face, and the other end is fixedly connected with the push rod; the outer edge of a sleeve joint seat of the sleeve connecting rod is sheathed with the regulating wheel; a proper point of an outer ring surface of the regulating wheel form an inner shaft hole which can just used for sheathing with the push rod, and a through hole of the sleeve joint seat is formed as a through round hole which is slightly larger than the push rod for a plurality of times. When the regulating wheel is rotated, the push rod and the braking rod are driven to move, so as to cause the automatic dropping of the sleeve to be quicker and more accurate.

Description

The quick dropping structure of sleeve

The utility model relates to box spanner, refers to a kind of dropping structure of sleeve especially.

The use of ratchet wrench is one of indispensable hand-held tool for industry development now, by prior art as can be known, the structure of general ratchet wrench as shown in Figure 1, it is that jacket casing is located in the rotating shaft of spanner on using, by steel ball sleeve is pushed against, fixes, then directly sleeve is dialled down when exchanging for hand by rotating shaft.Yet, because steel ball is to be tight against within sleeve, also lose time so when changing sleeve, comparatively require great effort, therefore, just have the people to create improved ratchet spanner in succession, as shown in Figures 2 and 3, it is provided with a press section at the head of ratchet spanner or an end of extension rod respectively, can conveniently break away from the structure of rotating shaft by made sleeve by pressing down of press section, but still have the inconvenience part in its use, thereby, necessity of in addition further transforming is arranged.

The purpose of this utility model is to provide a kind of quick dropping structure of sleeve, and the sleeve that makes spanner can be accurately when changing, promptly come off automatically, reaches quick-replaceable result of use.

In order to realize above-mentioned task, the solution that the utility model adopts is: a kind of quick dropping structure of sleeve is provided, mainly comprises assemblies such as a sleeve connecting rod, a stopper rod, a catch bar and transfer wheel; Wherein, sleeve connecting rod inner edge is through with the perforation of an adapter sleeve joint chair, and the suitable place of covered joint seat is equipped with one laterally perpendicular to the through hole of perforation, in order to supply stopper rod and catch bar sheathed respectively; Its characteristics are: the terminal scalene cone that forms of this stopper rod, and end links fixing with catch bar in addition; Simultaneously, utilize a holder to locate an elastomer, in order to system stopper rod location, top at the catch bar outer peripheral face of corresponding covered joint seat inner edge; Again, the covered joint seat outer rim of this sleeve connecting rod sheathed is transferred wheel, and this suitable place of outer ring surface that transfers wheel forms axis hole in, just can be sheathed for catch bar; And the through hole of this covered joint seat is configured as the circular hole that runs through that is slightly larger than the catch bar several times, and catch bar can be moved along the peritreme of through hole, can be driven catch bar and stopper rod and be moved by the turn of transferring wheel then.

By structure of the present utility model as can be known, the utility model is compared with traditional box spanner has following beneficial effect: having overcome conventional spanner needs with hand sleeve to be taken off when changing sleeve, changes the phenomenon that sleeve is comparatively required great effort and also lost time; And among the utility model, make catch bar by on carry or when rotating, sleeve is reached accurately, automatic rapidly falling-off effect.

Below in conjunction with accompanying drawing the specific embodiment of the present utility model is remake and to describe in further detail.

Fig. 1 is the outside drawing that tradition is commonly used ratchet spanner.

Fig. 2 is that another commonly uses the ratchet spanner outside drawing.

Fig. 3 commonly uses sleeve connecting rod outside drawing.

Fig. 4 is a stereo appearance figure of the present utility model.

Fig. 5 is an exploded view of the present utility model.

Fig. 6 is a combination dissected figure of the present utility model.

Fig. 7 is the action diagram that the utility model is faced.

Fig. 8 is the action diagram of looking on the utility model.

Fig. 9 is another most preferred embodiment figure of the present utility model.

Label declaration in the accompanying drawing:

1-sleeve connecting rod 11-covered joint seat

111-through hole 12-perforation

Position, 13-hole 2-stopper rod

22-oblique cone 3-catch bar

31-post hole 4-transfers wheel

41-axis hole 5-spring

6-holder 61-C shape button

7-steel ball 71-screw rod

Seeing also Fig. 4～Fig. 9, is the structure of the selected a kind of embodiment of the utility model shown in the figure, and this only for the usefulness of explanation, is not subjected to the restriction of this kind structure in patent application.Certainly, the utility model is on some part, and is or perhaps different in the arrangement of part, but selected embodiment then in this manual, described in detail, and showed its structure in the accompanying drawings.

See also Fig. 4～shown in Figure 6, the quick dropping structure of the utility model sleeve mainly is by sleeve connecting rod 1, stopper rod 2, catch bar 3 and transfer member such as wheel 4, cooperates assemblies such as spring 5, holder 6, steel ball 7 to combine, wherein:

This sleeve connecting rod 1, it is member for a strip, be through with the perforation 12 of an adapter sleeve joint chair 11 at axial inner edge, and 11 suitable places are equipped with a horizontal through hole 111 perpendicular to perforation 12 at covered joint seat, in order to supply stopper rod 2 and catch bar 3 sheathed respectively, and the feature of these through hole 111 maximums is that its aperture is greater than catch bar 3 several times, catch bar 3 can be moved along the circumference of through hole 111, again, the suitable place, the outside, end of this sleeve connecting rod 1 is formed with the position, hole 13 of a connection inner edge, in the time of can making steel ball 7 in being located in be subjected to stopper rod 2 contacts, slightly outwards protrude.

This stopper rod 2, it also is the bar axle of a strip, one termination face is drilled with a screw, can wear catch bar 3 back spiral shells admittedly for a screw rod 71, end then forms a scalene cone 22 in addition, the position, hole 13 of this scalene cone 22 by chance corresponding sleeve connecting rod 1 when the location, thereby but contact steel ball 7 outwards protrudes, again, the suitable place of catch bar 3 outer peripheral faces of these stopper rod 2 corresponding covered joint seat 11 inner edges also utilizes a holder 6 location one elastomer 5, in order to the location of top system stopper rod 2.

This catch bar 3 is to be a pole bar, is positioned in the through hole 111 of sleeve connecting rod 1 by the coating of transferring wheel 4, and the suitable place of its stage casing edge is penetrated with a post hole 31, can wear for screw rod 71.

Transfer wheel 4, it is the hollow member that slightly is colyliform for, can pull covered joint seat 11 outer peripheral faces that are placed in sleeve connecting rod 1 and be the slip attitude, its outer ring surface is formed with the lines of annular, coefficient of friction in the time of can increasing user's turn, simultaneously, offer one for the sheathed axis hole 41 of catch bar 3, make when transferring wheel 4 turns at the outer ring surface appropriate location.Can drive catch bar 3 actions in the lump.

By above-mentioned creation, utilize screw rod 71 to link stopper rod 2 and catch bar 3 fixing, simultaneously, detain 61 blocking holders 6 with location elastomer 5 by a C shape, and by the elastic-restoring force of elastomer 5 with stopper rod 2 contacts location, make the thicker end of its scalene cone 22 can push against steel ball 7 and protrude from its position, hole 13 outer rims.Have again, in sheathed catch bar 3, utilize and transfer wheel 4 its coating location, and make transfer wheel 4 be placed on covered joint seat 11 outer rims of sleeve connecting rod 1, make transfer wheel 4 by turn or on when carrying, catch bar 3 can be driven in the lump and stopper rod 2 moves up, thereby the effect that sleeve is broken away from automatically is more accurate, rapidly, see also Fig. 7, shown in Figure 8, what must add a supplementary explanation is again, because for catch bar 3 sheathed through holes 111 is to be the endoporus of an aperture greater than catch bar 3 several times, thereby, when transferring wheel 4 forward or during reverse turn, all can drive catch bar 3 and move along the peritreme of through hole 111, stopper rod 2 is upwards driven, perhaps, will transfer wheel 4 and upwards draw when carrying, also can directly stopper rod 2 upwards be driven, make the scalene cone 22 of contact steel ball 7 steel ball 7 outer rims that speed away, make the fastening force of sleeve invar pearl 7 disappear and come off automatically.And above-mentioned action, but except that bimanualness, also can one-handed performance, thereby more convenient user's sleeve exchanging operation.

In addition, please consult shown in Figure 9ly again, the utility model also can directly protrude from catch bar 3 covered joint seat 11 two ends outer rims, but the hole shape of its through hole 111 then forms the ellipticity of strip.During use, utilize singlehanded forefinger and middle finger to sketch the contours bar that catch bar 3 protrudes firmly, upwards carry simultaneously pushing away and can drive stopper rod 2 and move up, sleeve breaks away from effect automatically thereby reach more easily.

The announcement of the above embodiment is in order to explanation the utility model, is not in order to restriction the utility model, so the displacement of the change of numerical value or equivalence element must be under the jurisdiction of the utility model category such as.

Claims

1, a kind of quick dropping structure of sleeve comprises: a sleeve connecting rod, a stopper rod, a catch bar and transfer wheel; Wherein, sleeve connecting rod inner edge is through with the perforation of an adapter sleeve joint chair, and covered joint seat is equipped with one laterally perpendicular to the through hole of perforation, is arranged with stopper rod and catch bar respectively;

It is characterized in that: the terminal scalene cone that forms of this stopper rod, end links fixing with catch bar in addition; Catch bar outer peripheral face at corresponding covered joint seat inner edge is located an elastomer by a holder, and system stopper rod location, top; The covered joint seat outer rim of this sleeve connecting rod sheathed one is transferred wheel, and this outer ring surface of transferring wheel forms one and can supply the sheathed interior axis hole of catch bar, and the through hole of this covered joint seat is configured as the circular hole that runs through greater than the catch bar several times.

2, the quick dropping structure of sleeve as claimed in claim 1, it is characterized in that: the through hole of this covered joint seat forms elliptoid strip hole.