CN2328478Y

CN2328478Y - Clamp base structure for spanners

Info

Publication number: CN2328478Y
Application number: CN 98224184
Authority: CN
Inventors: 谢智庆
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-06-03
Filing date: 1998-06-03
Publication date: 1999-07-14
Anticipated expiration: 2008-06-03

Abstract

The utility model provides a clamping seat structure for spanners. The utility model is characterized in that two opposite through fixed holes are drilled on the opposite positions of the side wall of the ring surface of the inner edge of a clamping seat of a spanner. A clamping body whose external shape is slightly in the shape of the character 'n' is sheathed in the fixed hole. The clamping body is a slightly bended cylindrical body, sheathing posts convexly arranged on both ends of the clamping body is sheathed in the fixed hole of the clamping seat. Besides, a flange is formed in a proper position on the inner edge of the clamping seat of the spanner to enable a nut sheathed in the clamping seat to be abutted on the flange, and the slippage of the clamping seat from a threaded rod head can not happen.

Description

Spanner grip slipper structure

The utility model relates to a kind of spanner of ring jaw type, and particularly a kind of spanner is supported seat and annex.

Because industrial progress is quick, instrument is required towards convenient, characteristic direction design such as fast, general double offset ring spanner, box spanner, the support seat of die nut is all than single structure, in swivel bolt or nut process, the grip slipper that hand must make spanner and bolt (mother) be 90 ° vertical, and hand motion must be in application of force state always, careless slightly or hand motion is too big as the application of force, just can make the spanner grip slipper break away from bolt, cause and use inconvenience, as Fig. 1, shown in 2, in rotation process, can break away from the bolt of being pulled (mother) for overcoming spanner, as Fig. 3,4,5, shown in 6, utilize a steel ball and catch to be fastened on top on the spanner respectively, to prevent that spanner breaks away from the bolt of being pulled (mother), but, this steel-ball type is in contact, be the single-point contact, more insecure easy to wear, and steel ball is telescopicly to establish spring pushing and pressing with interior, therefore strength cross big steel ball can the retraction hole in and lost efficacy, and another kind of can control whether to need to be applied to the catch move left and right break away from the bolt of pulling (mother), it uses upward as the moving distance that is rotated among Fig. 1 pulling mouthful thickness and promptly can't use greater than spanner.The spanner of another kind of traditional usefulness, as Fig. 7,8, be provided with the suitable thickness sheet radially that extends a bit of distance in inside center at spanner clamping part end face, radially sheet and sleeve part are one-body molded for these, its structure is more firm, but the profile of tooth in its clamping part is on making, because the radially existence of sheet and difficult, not only increase cost, and the spanner profile of tooth can be dwindled and more difficult shaping with the spanner size.

The purpose of this utility model is that a kind of improved spanner grip slipper structure will be provided, and it can prevent the grip slipper bolt (mother) that slips away, and easy to use, handling ease, cost reduce.

Utility model is achieved in that the anchor ring sidewall relative position place at spanner grip slipper inner edge, be drilled with two relative running through and decide the hole, the fastening convex side that one profile slightly is Ω shape is sheathed on decides the hole, fastening convex side is the cylindrical body that can slightly break and bend, the sleeve column that its two ends are convexly equipped with is set in deciding in the hole of grip slipper, and forms a flange at the inner edge appropriate location of spanner holder.

The flange that the utility model utilizes fastening convex side to form at the grip slipper inner edge, but make the nut contact that is nested with in grip slipper at this flange place, thereby can not produce the grip slipper slippage from screw head, it is extremely convenient to use, and but its fastening convex side ease of assembly goes into to decide the hole, the more above-mentioned traditional structure of its whole processing is easy, can be owing to the little processing difficulties that makes of spanner size yet, and cost is reduced.

The concrete structure of utility model is provided by following examples and accompanying drawing thereof.

Fig. 1 is a conventional fixed spanner action schematic diagram.

Vertical view when Fig. 2 is conventional fixed spanner and bolt (nut) conflict.

Fig. 3 is a conventional fixed spanner steel-ball type vertical view.

Fig. 4 is a conventional fixed spanner blocked flake type vertical view.

Fig. 5 is a conventional fixed spanner steel-ball type side view.

Fig. 6 is a conventional fixed spanner blocked flake type side view.

Fig. 7 is that another conventional fixed spanner is used for the wrenching bolt schematic diagram.

Fig. 8 is that another conventional fixed spanner is used to pull the nut cross-sectional schematic.

Fig. 9 is that the utility model axle is surveyed schematic diagram.

Figure 10 is the utility model axonometric exploded view.

Figure 11 is the utility model partial sectional view.

Figure 12 is an action diagram of the present utility model.

With reference to Fig. 9,10,11,12, spanner grip slipper structure mainly comprises a wrench body 1, its two ends are formed with a grip slipper 11 respectively, the inner edge anchor ring sidewall appropriate location of grip slipper 11, drill two and relative decide hole 111, use for a fastening convex side 2 sheathed, fastening convex side 2 is one slightly to be the cylinder of Ω shape, its two ends convex with a sleeve column 21, make its curved the deciding in the hole 111 of grip slipper 11 of being set in that can slightly break, and form a flange part, so that wrench body 1 is when using in the end of grip slipper 11 inner edges, but it is nested with nut contact in grip slipper 11 on fastening convex side 2, and does not have grip slipper 11 bolt head that slips away.

The mat said structure, can utilize fixing fastening convex side 2 formed flanges, when making grip slipper 11 clipping bolts (mother), do not have the slip away situation of bolt head of spanner 1, not only allow user's hand establish nut by the staggered quick spiral shell of rotation mode of both hands, increase operating rate, and because of the fastening convex side 2 of spanner 1 is to form with cylinder, when its directly against when bolt (mother) is gone up, its contact is " line " contact, so operation the time can reduce frictional resistance, and more can smooth and easy turn, and use hand also needn't be application of force state always, it is quick to reach work by more laborsaving mode, purpose easily.

Claims

A kind of spanner grip slipper structure, comprise wrench body and support seat, it is characterized in that: at the anchor ring sidewall relative position place of spanner grip slipper inner edge, be drilled with two relative running through and decide the hole, the fastening convex side that one profile slightly is Ω shape is sheathed on decides the hole, fastening convex side is the cylindrical body that can slightly break and bend, and the sleeve column that its two ends are convexly equipped with is set in deciding in the hole of grip slipper, and forms a flange at the inner edge appropriate location of spanner grip slipper.