CN2265871Y - Lever type clamping spanner - Google Patents

Abstract

A lever-type plate clamp is composed of a movable jaw, a handle, a trapezoidal slot at the inner side of movable jaw, and an included angle of 60 deg. One end of the handle is a fixed jaw which is an arc curved surface, and teeth are arranged on the curved surface. The fixed jaw is provided with a floating pressure plate which is elastically connected with the fixed jaw. The utility model discloses simple structure, light in weight, with low costs are fit for pressing from both sides tight rotation to hexagon nut, bolt or pipe etc. do not need the roll adjustment, and convenient to use presss from both sides tightly reliably, does not skid, does not harm the work piece, and the range of application is wide.

Description

Lever clamps wrench

The utility model relates to a kind of manual screwing tool, and particularly a kind of have spanner and a pipe wrench dual-use function, does not need the lever of roll adjustment to clamp wrench during use.

Spanner and pipe wrench are widely used hand-operated tools, by the screw rod roll adjustment, not only waste time and energy when spanner in the past and pipe wrench use, and structure are complicated, and the cost height clamps by opposite side when screwing simultaneously, skids easily.Occur a kind of multifunctional wrench in recent years, moving jaw is a rotary type, does not need the screw rod roll adjustment, but the inboard band of moving jaw V-type groove, two jaw working faces all have tooth, during work and the nut anastomose property bad, for the some contact, skidding can appear also only, and bigger to the nut damage.

The purpose of this utility model is to overcome weak point of the prior art, provides a kind of cost low, easy to use, and reliable clamping is non-slip, does not damage nut, and the lever with spanner and pipe wrench dual-use function clamps wrench.

The technical solution of the utility model is: lever clamps wrench mainly to be made up of handle and moving jaw, and both connect with pivot pin, can freely relatively rotate.There is dovetail groove the moving jaw inboard, and this groove dual-side becomes 60 ° of angles.The end face of relative moving jaw is a regular jaw on the handle, and the curved curved surface of regular jaw has tooth on the curved surface.

Can be provided with floating platen on the regular jaw of above-mentioned clamping wrench, this floating platen becomes resilient connection with regular jaw, can slide along the arc-shaped curved surface of regular jaw.Resilient connection is by spring being set or spring leaf is realized.Described floating platen can be installed in the deep-slotted chip breaker of regular jaw both sides, slides along deep-slotted chip breaker, perhaps is sleeved on the pin on the regular jaw, rotates around pin.

The utility model has the advantages that moving jaw freely rotates, only need be enclosed within during use on the workpiece that the plate fixed handle is because leverage just clamp naturally, and clamping force is bigger.When screwing nut or bolt, dovetail groove is effectively identical with it, and reliable clamping is non-slip.When managed in the clamping garden, effect might as well.Particularly regular jaw is provided with floating platen, when screwing nut or bolt, pressing plate is slided to the clamping position, so just can eliminate the indentation on nut or the bolt head, makes it to have no damage.The utility model is not only easy to use, reliable, and simple in structure, and is in light weight, cost is low.

Further specify embodiment of the present utility model below in conjunction with accompanying drawing.

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

Fig. 2 and Fig. 3 are respectively the structural representation of two kinds of schemes that are provided with floating platen.

As Fig. 1, handle 1 is connected by pivot pin 2 with jaw 3, can relatively rotate.The inboard of moving jaw 3 is provided with dovetail groove 4, and groove side angle is 60 °.The end face of the relative moving jaw of handle is a regular jaw 5, and the camber curved surface has tooth on the curved surface.Among Fig. 2, floating platen 7 is installed in the deep-slotted chip breaker 6 of regular jaw both sides, can slide along deep-slotted chip breaker, is provided with spring leaf in the groove.Among Fig. 3, floating platen 9 is sleeved on the pin 8, can rotate around pin, is provided with spring in the pivoted arm, or is provided with spring leaf at the pin place.

Claims (4)

1, a kind of lever clamps wrench, mainly is made up of handle and moving jaw, and both connect with pivot pin, it is characterized in that there is ladder-type trough the moving jaw inboard, this groove dual-side becomes 60 ° of angles, and the end face of the relative moving jaw of handle is a regular jaw, the curved curved surface of regular jaw has tooth on the curved surface.

2, by the described clamping wrench of claim 1, it is characterized in that regular jaw is provided with floating platen, this floating platen becomes resilient connection with regular jaw.

3, by the described clamping wrench of claim 2, it is characterized in that floating platen is installed in the deep-slotted chip breaker of regular jaw both sides, can slide along deep-slotted chip breaker.

4,, it is characterized in that floating platen is sleeved on the pin on the regular jaw, can rotate around pin by wanting profit requirement 2 described clamping wrench.

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