CN2734424Y

CN2734424Y - Structure of sleeve barrel

Info

Publication number: CN2734424Y
Application number: CN 200420073066
Authority: CN
Inventors: 陈淑汝
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-07-05
Filing date: 2004-07-05
Publication date: 2005-10-19
Anticipated expiration: 2014-07-05

Abstract

The utility model discloses a structure of sleeve barrel. An actuating hole is arranged at one end of the sleeve barrel. The actuating is provided with several angular groove-shaped containing angles. A contact part and an arc convex part are respectively arranged between the containing angles. An arc convex part is formed between two contact parts. The contact part is convex provided with several cuspidal wales. The height of each cuspidal wale is decreased from the center of the contact part to both sides. The cuspidal wale is sheathed on a fastened piece by the actuating hole to make the cuspidal wale of the contact part be appropriately against the periphery of the fastened piece. So, the structure of sleeve barrel can effectively clutch the fastened piece with the blunt tip and prevents the fastened piece from slipping. The structure of sleeve barrel is suitable to various fastened pieces with the blunt tips.

Description

The structure of sleeve

＜one〉technical field:

The structure of a kind of sleeve of the utility model refer to a kind of hand-held tool product structure design of sleeve especially, and interlock is belonged to hand tools by the tube-in-tube structure of the part that is locked at blunt tip effectively.

＜two〉background technology:

At present, the hand tool of commonly using, kind is a lot; Wherein, for adapting to various multi-form, the bolt heads of size, nut, design the hand-held tool of numerous species type, as a word bottle opener (having another name called screwdriver, screwdriver), cross driver, hexagon prism, or various open-end wrench, double offset ring spanner or the like, and be in recent years in response to various multi-form demands, develop a kind of box spanner, it is that mate gear drives driving end, and the pulling head that utilizes box spanner is set in four jiaos of holes of sleeve, so make a single set of barrel spanner multi-form sleeve that can change the outfit.

Please cooperate and consult Fig. 5 to shown in Figure 7, it is general known sleeve, one end of this sleeve 40 has the inward recess 41 of one or four horn shapes, this inward recess 41 is established for an instrument (not shown) group, and this sleeve 40 is with respect to the end in addition of this inward recess 41, have one and be interior hexagonal or interior 12 jiaos start hole 42, this start hole 42 has the ccontaining angle 421 of some chamfered groove shapes;

User system utilizes the start hole 42 of sleeve 40 to be sheathed on the outer peripheral edges of part 50 that are locked, and imposes a suitable spinning force, promptly is able to the part 50 that is locked is unscrewed or locks;

So, because the hardness of general sleeve is higher, so when the part 50 that is locked being carried out the degree of tightness action regularly, the direct wearing and tearing outer peripheral edges shape of part 50 that is locked, so that the part 50 that is locked loses wedge angle, and cause follow-up degree of tightness action, the related interlock of sleeve 40, the anti-slip effect of making also therefore to have a greatly reduced quality, and even can't unscrew or lock the part 50 that is locked fully the part 50 that is locked.

＜three〉summary of the invention:

Main purpose of the present utility model is intended to provide a kind of interlock effectively by the part that is locked at blunt tip, makes it to prevent to skid, and is applicable to that the various parts that are locked polish the tube-in-tube structure of most advanced and sophisticated situation.

The structure of a kind of sleeve of the utility model, this sleeve one end has a start hole, this start hole has the ccontaining angle of some chamfered groove shapes, it is characterized in that: between this ccontaining angle and the ccontaining angle, one contact site and an arc protuberance are set respectively, and make and form this arc protuberance between this two contact site, and this contact site is convexly equipped with out some sharp burrs, the middle position that the height of each sharp burr lies in this contact site is to the both sides state setting that tapers off, be locked on the part and be located at one, make the sharp burr of this contact site be able to suitably support the outer peripheral edges that are stuck in the part that is locked by this start borehole jack.

Wherein, hexagonal or interior 12 jiaos in this start hole system is.

Wherein, each sharp burr is V-shaped.

The structure of a kind of sleeve of the utility model, its advantage is: simple in structure, flexible and convenient to use, interlock is made it to prevent to skid by the part that is locked at blunt tip effectively, and is applicable to the various most advanced and sophisticated situations of part polishing that are locked.

＜four〉description of drawings:

The stereo appearance figure of Fig. 1 the utility model.

End face schematic diagram before the embodiment of Fig. 2 the utility model pulls.

End face schematic diagram when the embodiment of Fig. 3 the utility model pulls.

The embodiment of Fig. 4 the utility model pulls the end face schematic diagram of the part tip that is locked when being worn.

Fig. 5 commonly uses the generalized section of sleeve.

Fig. 6 commonly uses sleeve and pulls preceding end face schematic diagram.

End face schematic diagram when Fig. 7 commonly uses sleeve and pulls.

Number in the figure is as follows:

121 ccontaining angles, 10 sleeves, 12 start holes

122 contact sites, 123 arc protuberances, 124 sharp burrs

20 parts that are locked

40 sleeves, 41 inward recess, 42 start holes

421 ccontaining angles 50 part that is locked

＜five〉specific embodiment:

At first, please cooperate and consult Fig. 1 to shown in Figure 4, the structure of a kind of sleeve of the utility model, one end of this sleeve 10 has shrinkage pool within one or four horn shapes (among the figure not label), this inward recess system establishes for an instrument (not shown) group, and this sleeve 10 has one and is interior hexagonal or interior 12 jiaos start hole 12 with respect to the end in addition of this inward recess, and this start hole 12 has the ccontaining angle 121 (as shown in Figures 1 and 2) of some chamfered groove shapes;

What deserves to be mentioned is, between this ccontaining angle 121 and the ccontaining angle, one contact site 122 and an arc protuberance 123 are set respectively, and make and form this arc protuberance 123 between this two contact site 122, and this contact site 122 is convexly equipped with out some general V-shaped sharp burrs 124, the middle position that the height of each sharp burr 124 lies in this contact site 122 is to the both sides state setting (as shown in Figure 2) that tapers off, be locked on the part 20 and be sheathed on one by this start hole 12, make the sharp burr 124 of this contact site 122 be able to suitably support the outer peripheral edges that are stuck in the part 20 that is locked, and order is when pulling operation, has to prevent to skid, the use effect (as shown in Figures 3 and 4) that interlock is certain.

And by above constituting, please continue to cooperate and consult Fig. 1 to shown in Figure 4, when user's desire is utilized the utility model to unscrew or screwed when being locked part 20, the user only need utilize the start hole 12 of sleeve 10 to be sheathed on the outer peripheral edges of the part 20 that is locked, and impose a suitable spinning force, promptly be able to the part 20 that is locked is unscrewed or locks, whole manipulates simple and convenient (as shown in Figure 2).

Part 20 is unscrewed or is screwed frequently if be locked, can make mostly and be locked the end angle of part 20 outer peripheral edges by rounding, and when user's desire unscrews it or lock, it is the outer peripheral edges of the start hole 12 of sleeve 10 being inserted in the part 20 that is locked, and impose a suitable spinning force, can make it slightly to produce sliding phenomenon, and when drive is locked part 20 slips, just utilized of the design of the sharp burr 124 of contact site 122 than evagination, support the outer peripheral edges (as shown in Figures 3 and 4) of the part 20 that is locked, increasing whole blocking effect, and order integral body pull operation, have and prevent to skid, the use effect that interlock is certain has convenient and practical effect.

In addition, please continue to cooperate and consult Fig. 3 and shown in Figure 4, because the contact site 122 of the utility model is convexly equipped with out some general V-shaped sharp burrs 124, and the middle position that the height of each sharp burr 124 lies in this contact site 122 is to the both sides state setting (as shown in Figures 3 and 4) that tapers off, and because the public affairs of the part 20 that is locked of same specification, the difference of imperial sizing is minimum, so can utilize the difference slightly of the sharp burr 124 high low dimensionals of contact site 122, and then to different public, the part 20 that is locked of imperial sizing unscrews or screws, not only also can reach aforementioned preventing skids, the use effect that interlock is certain, and can reach metric system simultaneously with made in Great Britain shared, use and form a combined type sleeve, make it to have more diversified operation and select, dark tool practicality.

Claims

1, a kind of structure of sleeve, this sleeve one end has a start hole, and this start hole has the ccontaining angle of some chamfered groove shapes, it is characterized in that:

Between this ccontaining angle and the ccontaining angle, a contact site and an arc protuberance are set respectively, and make between this two contact site and to form the arc protuberance, this contact site is convexly equipped with burr full to the brim, and the middle position that highly lies in this contact site of each sharp burr is to the both sides state setting that tapers off.

2, the structure of a kind of sleeve according to claim 1 is characterized in that: this start hole is interior hexagonal.

3, the structure of a kind of sleeve according to claim 1 is characterized in that: this start hole is interior 12 jiaos.

4, according to the structure of the described a kind of sleeve of claim 1, it is characterized in that: this point burr is V-shaped.