CN201105426Y

CN201105426Y - Forward-inverse forcing steady antiskid sleeve barrel

Info

Publication number: CN201105426Y
Application number: CNU2007201937750U
Authority: CN
Inventors: 李凤凰
Original assignee: LEADER UNION ENTERPRISE CO Ltd
Current assignee: LEADER UNION ENTERPRISE CO Ltd
Priority date: 2007-11-22
Filing date: 2007-11-22
Publication date: 2008-08-27
Anticipated expiration: 2017-11-22

Abstract

The utility model discloses an anti-skid sleeve with stable force application towards the forward and the reverse directions, the central positions of the inner walls of at least three sides of a connecting hole of the sleeve are respectively axially formed with a rectangular clamping part, then the rectangular clamping parts can be simultaneously connected with the peripheral surface of the head part of a working object face-to-face; thus, the anti-skid sleeve can not only be used for normally driving the working object, but can also be applicable under the states that a corner of the head part of the working object is worn or damaged, the head part of the working object can be easily driven regardless of the forward and the reverse directions, and the slipping situation which is relative to the head part of the working object can not be happened.

Description

The anti-skid sleeve that forward and reverse application of force is stable

Technical field

The utility model relates to a kind of tube-in-tube structure, and more specifically it is meant the corner abrasion or the impaired stable anti-skid sleeve of forward and reverse application of force that drive the working substance head relevant for a kind of especially.

Background technology

The driving nut or the bolt head of general spanner commonly used, usually all can on spanner, put a sleeve earlier, then jacket casing is combined on nut or the bolt head again, so user's rotating spanner makes spanner drive sleeve, when sleeve rotates with spanner, sleeve i.e. together turn nut or the bolt head operation of locking or unclamping, really in the operation its convenience is arranged, have much practical characteristic, but when abrasion or impaired situation being arranged as if the corner corner that runs into nut or bolt head, general sleeve is probably with powerless, therefore be a kind of improved sleeve to occur afterwards, as depicted in figs. 1 and 2, sleeve 1 the register hole 11 corresponding nuts of one end or bolt head 2 each side centre be provided with inwardly be the convergent gradient fasten tiltedly protruding 12, sleeve 1 protruding 12 is equipped in nut or bolt head 2 each side centre by fastening tiltedly, can drive nut or bolt head 2 rotations, it should be noted that, because sleeve 1 only is the contact of point with contacting of nut or bolt head 2, just the area of contact is extremely limited to each other, the strength that therefore can drive nut or bolt head 2 lockings or unclamp is comparatively not enough, and often can find to still have a lot of nuts or bolt is to drive.

In view of this, this case creator thinks funiculus through detailed, and amasss and be engaged in the research of hand-held tool and every assembly thereof, the experience of developing and peddling for many years, several times manufactures experimently and studies, and must create the stable anti-skid sleeve of a kind of forward and reverse application of force eventually.

The utility model content

Technical problem to be solved in the utility model provides the stable anti-skid sleeve of a kind of forward and reverse application of force, except that can using for working substances such as driven nut or bolt heads, under the corner abrasion or impaired state of nut or bolt head, it still can bring into play suitable.

For solving the problems of the technologies described above, the utility model is provided with a hexagonal register hole at sleeve one end, uses for driving the working substance head, and the other end then is provided with conjugate foramen, for the drive division engaging of instrument; The register hole of its middle sleeve all forms a rectangle holding section vertically in the inwall centre at least three limits, makes each rectangle holding section to be the aspectant kenel that engages with the circumferential surface of working substance head simultaneously.

The utility model is by said structure, by the kenel that face contacts with face, brings into play no matter forward and reversely all can easily drive nut or bolt head, has the situation that generation is skidded with respect to nut or bolt head anything but.The aperture is gradually big because the register hole of sleeve system is designed to from top to bottom tilt vertically in addition, therefore can bring into play advantage applied widely, and is all applicable for the nut or the bolt of size dimension.

Description of drawings

Below in conjunction with drawings and Examples the utility model is described in further detail:

Fig. 1 is the stereogram of sleeve commonly used;

Fig. 2 is the radially sectional drawing of sleeve demonstration commonly used with the working substance contact condition;

Fig. 3 is a stereogram of the present utility model;

Fig. 4 is the radially sectional drawing of the utility model demonstration with not impaired working substance contact condition;

Fig. 5 is the radially sectional drawing of the utility model demonstration with working substance contact condition in damaged condition;

Fig. 6 shows the radially sectional drawing of another embodiment and working substance contact condition in damaged condition for the utility model.

Reference numeral is among the figure, 1, sleeve; 11, register hole; 12, fasten tiltedly protruding; 2, nut or bolt head; 3, sleeve; 31, register hole; 311, rectangle holding section; 4, nut or bolt head.

The specific embodiment

The anti-skid sleeve that the forward and reverse application of force of the utility model is stable, extremely shown in Figure 6 as Fig. 3, it is provided with a hexagonal register hole 31 at sleeve 3 one ends and uses for driving working substances such as nut or bolt head 4, the other end then is provided with the usefulness of conjugate foramen (not showing on the figure) for the drive division engaging of instrument, its feature tie up in, the inwall centre of the register hole 31 of sleeve 3 at least three limits all forms a rectangle holding section 311 (as shown in Figure 6) vertically, makes each rectangle holding section 311 to be the aspectant kenel that engages with the circumferential surface of working substances such as nut or bolt head 4 simultaneously.

It should be noted that; for reaching protection completely really; the register hole 31 of its middle sleeve 3 of the utility model also can be all to form a rectangle holding section 311 vertically on any four, five inwalls; can certainly be on six all inwalls (extremely shown in Figure 5), all to form a rectangle holding section 311 vertically as Fig. 3; by working substances such as the contact nut of a plurality of rectangles holding section 311 or bolt heads 4; the increase of contact area will help to improve frictional force to each other, so will be easier to drive the rotation of working substances such as nut or bolt head 4.

In addition, for increasing scope applicatory, the utility model more can be molded into the register hole 31 of sleeve 3 the gradually big structure in aperture that from top to bottom tilts vertically, just bigger near the aperture of opening part, more then the aperture is gradually little, so all can bring into play suitable for the nut or the bolt 4 of full range of sizes.

The above is the correlation position of each constituent components of the utility model and the general introduction of structure thereof so.

Operating principle as for the stable anti-skid sleeve of the forward and reverse application of force of the utility model, see also Fig. 3 and shown in Figure 4, sleeve 3 of the present utility model drives the rotation of working substances such as nut or bolt head 4, owing to be to utilize the edge joint of rectangle holding section 311 and working substances such as nut or bolt head 4 to touch, rather than and angular contact, therefore no matter working substances such as nut or bolt head 4 are good or existing abrasion of corner or impaired state, do not influence contacting of sleeve 3 rectangle holding sections 311 and working substances such as nut or bolt head 4, the kenel that contacts with working substance complete faces such as nut or bolt heads 4 of sleeve 3 just, no matter forward and reversely all can easily drive working substances such as nut or bolt head 4, its two-way power is all identical, has the situation that generation is skidded with respect to working substances such as nut or bolt heads 4 anything but.

Claims

1. the anti-skid sleeve that forward and reverse application of force is stable is provided with a hexagonal register hole at described sleeve one end, uses for driving the working substance head, and the other end then is provided with conjugate foramen, for the drive division engaging of instrument; It is characterized in that the register hole of described sleeve all forms a rectangle holding section vertically in the inwall centre at least three limits, make described each rectangle holding section to be the aspectant kenel that engages with the circumferential surface of described working substance head simultaneously.

2. the stable anti-skid sleeve of forward and reverse application of force according to claim 1 is characterized in that, the register hole of described sleeve all forms a rectangle holding section vertically on any four inwalls.

3. the stable anti-skid sleeve of forward and reverse application of force according to claim 1 is characterized in that, the register hole of described sleeve all forms a rectangle holding section vertically on any five inwalls.

4. the stable anti-skid sleeve of forward and reverse application of force according to claim 1 is characterized in that, the register hole of described sleeve all forms a rectangle holding section vertically on six inwalls.

5. the stable anti-skid sleeve of forward and reverse application of force according to claim 1 is characterized in that, the register hole of the described sleeve aperture that from top to bottom tilts vertically is gradually big.