CN2721324Y

CN2721324Y - Flexible spanner

Info

Publication number: CN2721324Y
Application number: CN 200420062920
Authority: CN
Inventors: 汤天高
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-07-18
Filing date: 2004-07-18
Publication date: 2005-08-31
Anticipated expiration: 2014-07-18

Abstract

The utility model relates to a hardware instrument, in particular to an adjustable spanner, which can conveniently regulate the size of a shed between mouth of tongs blocks, comprising a fixed mouth of tongs block integrated with a handle and a movable mouth of tongs block integrated with a handle.The adjustable spanner can clamp fixedly the mouth of tongs in a single direction, and can be expanded in a way of contra-rotation. A convex protrusion is arranged on the connected transition part of the fixed mouth of tongs block and the handle, a table top whose two sides are provided with convexes is arranged in the adjustable spanner, and is used for a vallecular cavity to contain the movable mouth of tongs block; the fixed mouth of tongs block is hinged with the movable mouth of tongs block. The complex operation of separation and fastening between the spanner and the nut and the bolt is no longer to be processed, when the utility model screws up or looses the nut and the bolt, with convenient and reliable application.

Description

Flexible spanner

Technical field

The utility model relates to a kind of hardware ﹠ tools, specifically is exactly a kind of being used for bolt, nut screwing clamping or the spanner that loosens.

Background technology

At present, be used for bolt, nut screwing clamping or the spanner that loosens roughly can be divided into two classes, a class is that openings of sizes is the spanner of fixing, and " fork spanner " that promptly is commonly called as can only be used for fixing tightening or using when loosening of nut; Another kind of is the openings of sizes spanner that is fine, the monkey wrench that promptly is commonly called as.Monkey wrench turns runner in use and drives the screw rod rotation, driving a jaw piece by screw rod again moves relative to another piece jaw piece, openings of sizes between the two jaw pieces is suitably adjusted, therefore, openings of sizes between its two jaws piece realizes adjusting by turning runner, and for the bolt of specification different sizes, all need special adjustment when nut uses at every turn, and whenever pull once when using, all spanner to be taken off the binding site that makes jaw and bolt, nut transfer again right, therefore, complicated operation, inefficiency.

Technology contents

The Flexible spanner that the purpose of this utility model provides that openings of sizes between a kind of jaw piece is easy to adjust, jaw unidirectionally is fixedly clamped, reverse rotation launches.

For achieving the above object, the technical solution adopted in the utility model is: Flexible spanner comprises the regular jaw piece that is connected as a single entity with handle, and the adjustable clamp buccal mass that cooperates formation work jaw with the regular jaw piece, it is characterized in that: described regular jaw piece has the convex extension part with the intermediate location that is connected of handle, the inside of this convex extension part is provided with vallecular cavity, the upper block two sides in vallecular cavity of adjustable clamp buccal mass offers the table top of concavity, two step limits of the table top of this concavity are the angle shape, the position of the concave station face of the convex extension part of described regular jaw piece and adjustable clamp buccal mass is hinged, is provided with the spring that regular jaw piece and adjustable clamp buccal mass are tending towards closing up in the described vallecular cavity.

As shown from the above technical solution, the monkey wrench that uses the utility model to provide is tightened or when loosening nuts and bolt, the jaw position that nuts and bolt should be placed regular jaw piece and adjustable clamp buccal mass to constitute, rotate monkey wrench to a direction, jaw then can occur and clamp or launch two states, thereby realize tightening or loosening the effect of nuts and bolt, the complex operations that need not again spanner be separated screens again with nuts and bolt, easy to use, reliable.

Summary of drawings

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

Fig. 2 is the left view of Fig. 1;

Fig. 3 is the structural representation of adjustable clamp buccal mass;

Fig. 4 is the left view of Fig. 3.

The specific embodiment

Referring to Fig. 1,2, Flexible spanner comprises the regular jaw piece 20 that is connected as a single entity with handle 10, and the adjustable clamp buccal mass 40 that cooperates formation work jaw with regular jaw piece 20, described regular jaw piece 20 has convex extension part 30 with the intermediate location that is connected of handle 10, the inside of this convex extension part 30 is provided with vallecular cavity 31, the block two sides that is positioned at vallecular cavity 31 on the adjustable clamp buccal mass 40 offers the table top 41 of concavity, two step limits of the table top 41 of this concavity are the angle shape, the convex extension part 30 of described regular jaw piece 20 is hinged with the position of the table top 41 of the concavity of adjustable clamp buccal mass 40, is provided with the spring 50 that regular jaw piece 20 and adjustable clamp buccal mass 40 are tending towards closing up in the described vallecular cavity 31.

As shown in Figure 1, 2, described convex extension part 30 is an equal wide, prolong its length direction and offer strip hole 32, simultaneously referring to Fig. 3,4, the minimum spacing that the table top of the concavity on described adjustable clamp buccal mass 40 two sides is 41 and the width of convex extension part 30 coincide, bearing pin 40 two ends that connect on the described adjustable clamp buccal mass 40 are positioned at strip hole 32, and both constitute slip and are rotatably assorted.

The table top 41 of the concavity of described adjustable clamp buccal mass 40 is positioned at the position 411 that jaw one side has protrusion, offers the hole 42 that is used to connect bearing pin 60 on it, and the rotation that bearing pin 60 can guarantee adjustable clamp buccal mass 40 is set.The angle at two edge of table positions of table top 41 is 30 °, and Da Xiao angle can launch certain angle by jaw when rotating like this, and this start point can satisfy dodging of distance between the diagonal angle of bolt head or nut.

As Fig. 1,2,3,4, be connected with spring 50 between vallecular cavity 31 bottoms in 411 tops, position of the protrusion on the described adjustable clamp buccal mass 40 and the regular jaw piece 20, the effect that spring 50 is set mainly contains two aspects, first adjustable clamp buccal mass 40 under spring 50 effect will be in the binding nut workpiece state, two to be spanners be in rounding state at its adjustable clamp buccal mass 40 of time spent not with regular jaw piece 20 for it, and the spanner volume is little.

Vallecular cavity 31 in the described regular jaw piece 20 is the opening shape, adopt this version, mainly can portable propelling jaw piece 40 with the assembling of regular jaw piece 20, and the scope of activities of adjustable clamp buccal mass 40 is big, can satisfy the installation and removal of big specification nuts and bolt.

Below in conjunction with Brief Description Of Drawings operation principle of the present utility model:

In conjunction with Fig. 1, in the time of need loosening, tighten nut, only bearing pin 60 translations are drawn back with hand, the wrench mouth snaps in nut and gets final product.When pulling the spanner clockwise direction and rotate, the closed naturally chucking nut of wrench mouth, when oppositely pulling spanner, nut is unclamped in the fan cut of wrench mouth nature, and suitable, the counter clockwise direction rotating spanner of such one a tight pine can fastening nut; In like manner can unclamp nut.

Claims

1, a kind of Flexible spanner, it comprises the regular jaw piece (20) that is connected as a single entity with handle (10), and the adjustable clamp buccal mass (40) that cooperates formation work jaw with regular jaw piece (20), it is characterized in that: described regular jaw piece (20) has convex extension part (30) with the intermediate location that is connected of handle (10), the inside of this convex extension part (30) is provided with vallecular cavity (31), the block two sides that is positioned at vallecular cavity (31) on the adjustable clamp buccal mass (40) offers the table top (41) of concavity, two step limits of the table top of this concavity (41) are the angle shape, the position of the table top (41) of the convex extension part (30) of described regular jaw piece (20) and the concavity of adjustable clamp buccal mass (40) is hinged, is provided with the spring (50) that regular jaw piece (20) and adjustable clamp buccal mass (40) are tending towards closing up in the described vallecular cavity (31).

2, Flexible spanner according to claim 1, it is characterized in that: described convex extension part (30) are equal wide, prolong its length direction and offer strip hole (32), the minimum spacing between the table top (41) of the concavity on described adjustable clamp buccal mass (40) two sides and the width of convex extension part (30) coincide, described adjustable clamp buccal mass (40) is gone up bearing pin (60) two ends that connect and is positioned at strip hole (32), and both constitute slip and are rotatably assorted.

3, Flexible spanner according to claim 1 and 2 is characterized in that: the table top (41) of the concavity of described adjustable clamp buccal mass (40) is positioned at the position (411) that jaw one side has protrusion, offers the hole (42) that is used to connect bearing pin (60) on it.

4, Flexible spanner according to claim 3 is characterized in that: be connected with spring (50) between vallecular cavity (31) bottom in (411) top, position of the protrusion on the described adjustable clamp buccal mass (40) and the regular jaw piece (20).

5, Flexible spanner according to claim 4 is characterized in that: the vallecular cavity (31) in the described regular jaw piece (20) is the opening shape.