CN201128126Y

CN201128126Y - Adjustable spanners

Info

Publication number: CN201128126Y
Application number: CNU2007201929824U
Authority: CN
Inventors: 王小峰; 赖知军
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-12-03
Filing date: 2007-12-03
Publication date: 2008-10-08
Anticipated expiration: 2017-12-03

Abstract

The utility model belongs to the technical field of mechanical tools, in particular relates to an adjustable wrench which comprises a handle and a chuck. One end of the handle is firmly provided with an end cover, the diameter of which is larger than that of the handle; a cone-shaped gear with a cupped bottom is arranged and is rotationally sleeved on the end cover; a rotating bushing sleeved outside the handle is arranged, and the upper plane of the rotating bushing is stuck to the lower plane of the end cover, and the rotating bushing is connected with the edge of the cone-shaped gear by screws. The cone-shaped gear is meshed with six chucks, the inner chuck surface of the chuck is parallel to an axis line; the six chucks are evenly distributed along the circumference and form the chuck mouth of the wrench for clamping a nut. A bushing is sleeved outside the six chucks, and the bushing is fixed with one chuck through a self-locking screw rod. The wrench has the chuck mouth formed by the six chucks, and the six chucks axially move by rotating the rotating bushing to change the diameter of the chuck mouth to fit the clamping for the nuts of different models. The chuck mouth is sleeved outside the nut, and the six chucks tightly clamp the edge of the nut, with no skid and tight meshing.

Description

A kind of adjustable spanner

[technical field]

The utility model belongs to the machine tool technical field, particularly a kind of adjustable spanner.

[background technology]

In machine tool, the spanner instrument that is absolutely necessary, its application is very extensive.By the diameter that whether can regulate bayonet socket, it can divide fixed spanner and pivotable wrench.Though the bayonet socket clamping nut of fixed spanner is firm, it is applicable to the nut of specific model, and the scope of application is limited.Pivotable wrench can be regulated the diameter of its bayonet socket, and to adapt to the nut of different sizes, the scope of application is wider.But also there are some defectives in existing pivotable wrench.Its bayonet socket is made of two dops, when the clamping nut, easily skids, and with the wearing and tearing of nut corner, thereby can't again nut be clamped and rotate.So be necessary the structure of existing pivotable wrench is improved, to overcome the above-mentioned shortcoming that exists.

[summary of the invention]

The utility model discloses a kind of adjustable spanner, the shortcoming that it has easily skidded when having overcome existing pivotable wrench clamping nut.

Technical solution adopted in the utility model is as follows: a kind of adjustable spanner, comprise handle, dop, and handle one end sets firmly end cap, and the end cap diameter is greater than handle diameters; If the angular wheel of depression is formed on a bottom, angular wheel is placed on the end cap rotationally; If a pivoted housing is set in outside the handle, the last plane of pivoted housing and the lower plane of end cap are fitted, and pivoted housing links to each other by screw with the edge of angular wheel; Six dops of angular wheel engagement, the interior card face of dop parallels with the axis; Six dops evenly distribute and the bayonet socket of formation spanner clamping nut along circumference, and six dops outside cover is sleeved, fixes by a self-locking double-screw bolt between a sleeve and a dop.

Described adjustable spanner, the handle other end is rotationally connected along stock.

Spanner of the present utility model constitutes bayonet socket by six dops, by rotating pivoted housing six dops is moved vertically, and then the diameter of bayonet socket is changed, to be fit to the clamping of different model nut.Bayonet socket is placed in outside the nut, and six dops are clamped the nut edge firmly, are difficult for skidding, and interlock is firm; In addition, because it is provided with six dops, therefore, it also is applicable to the be worn nut of corner of clamping.

[description of drawings]

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is a partial structurtes cutaway view of the present utility model.

Fig. 3 is a vertical view of the present utility model.

[specific embodiment]

Below in conjunction with accompanying drawing the utility model is elaborated.

As Figure 1-3, the upper end of handle 9 sets firmly end cap 7, and the diameter of end cap 7 is greater than the diameter of handle 9.Depression is formed on one angular wheel, 1 bottom, and this depression is suitable with the external diameter of end cap 7, and is placed on the end cap 7, and is rotatable between the two.One pivoted housing 8 is set in outside the handle 9, and lower plane of plane and end cap 7 is fitted on it, and pivoted housing 8 links to each other by screw 6 with the edge of angular wheel 1.Because pivoted housing 8 is fixedly linked with angular wheel 1, and the centre is separated by end cap 7, and therefore, when pivoted housing 8 drove angular wheels 1 rotation, 1 of angular wheel can rotate and can not move vertically.Six dops 2 of angular wheel 1 engagement, the top of dop 2 is interior card face, it parallels with the axis; Dop 2 evenly distributes and constitutes the bayonet socket of spanner clamping nut along circumference, and it is sleeved 3 that six dops, 2 outsides are overlapped, and 2 of a sleeve 3 and dops fix by a self-locking double-screw bolt 4.

The end of handle 9 is rotationally connected one along stock 10, and this can be folded into handle 9 along stock 10 and is an angle of 90 degrees shape, to strengthen the rotation dynamics.

When regulating the diameter of bayonet socket, at first unscrew self-locking double-screw bolt 4, pivoted housing 8 is rotated in the back, drive angular wheel 1 and rotate, thereby six dops 2 that are meshed with angular wheel 1 moves vertically, make the increase of bayonet socket internal diameter or reduce, can be fit to the different model nut, last, screw self-locking double-screw bolt 4 and get final product.

Claims

1, a kind of adjustable spanner comprises handle, dop, it is characterized in that, handle one end sets firmly end cap, and the end cap diameter is greater than handle diameters; If the angular wheel of depression is formed on a bottom, angular wheel is placed on the end cap rotationally; If a pivoted housing is set in outside the handle, the last plane of pivoted housing and the lower plane of end cap are fitted, and pivoted housing links to each other by screw with the edge of angular wheel; Six dops of angular wheel engagement, the interior card face of dop parallels with the axis; Six dops evenly distribute and the bayonet socket of formation spanner clamping nut along circumference, and six dops outside cover is sleeved, fixes by a self-locking double-screw bolt between a sleeve and a dop.

2, adjustable spanner as claimed in claim 1 is characterized in that, the handle other end is rotationally connected along stock.