CN2238112Y - Adjustable wrench - Google Patents

Abstract

The utility model relates to a manual tool, particularly an adjustable wrench which can loosen and tighten a hexagonal nut, comprising a handle, a sliding wrench sleeve covered on the handle, and a wrench head clamp formed between the wrench sleeve and one end of the handle. The utility model is characterized in that the surface where the wrench sleeve contact with the nut on the wrench head clamp forms a V-shaped surface which dovetails into one corner of the hexagonal nut; the surface where one end of the handle is opposite to the wrench sleeve and contacts with the nut forms an inverted V-shaped surface which dovetails into the other corner of the hexagonal nut to make the wrench head clamp the diagonal four surfaces of the nut.

Description

Monkey wrench

The utility model relates to a kind of hand tools, but is in particular a kind of monkey wrench of degree of tightness hex nut.

At present commercially available spanner in use because it is the two sides with the contact-making surface of nut and contacts, is easy to during use skid, and makes nut stress surface corrupted, skids and can't become flexible or screw, and often causes user's hand injured what is more.

Practical this novel purpose is exactly to provide a kind of monkey wrench that makes the stressed clamping of nut multiaspect for the above-mentioned defective that overcomes prior art.

Technical solution of the present utility model is as follows:

A kind of monkey wrench, it includes handle, be with a slip on the handle and pull cover, this end of pulling cover and handle forms the spanner folder, it is characterized in that pulling on spanner folder the one side that cover contacts with nut is a  shape face, and one jiao of itself and hex nut matches, with pull an end that overlaps relative handle on the contacted one side of nut be a  shape face, another corresponding angles of itself and hex nut match, and make four faces that the spanner folder can clamping nut diagonal angle.

The advantage of utility model is: since spanner folder and nut contact-making surface be the diagonal angle in the four sides clamping, make spanner be clipped in to screw or when loosening nut, can not skid.

Below in conjunction with accompanying drawing the utility model is described further:

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

As shown in Figure 1, during the utility model work, in pulling cover 1 hypomere one side, be provided with a rotatable screw rod 2, be provided with screw thread in handle 3 one sides relative with this side, this screw rod 2 is along screw thread rotation, make that pull cover 1 moves up and down along handle 3, forming the spanner folder with an end of handle 3 screws or unclamps hex nut, the screw rod 2 of cover on 1 pulled in rotation, makes to pull cover 1 and move down along handle 3, unclamps the spanner folder during use, to treat that angle of spin nut and two faces of the  shape face on the handle match, rotary screw again makes that pulling cover rises along handle, and two faces of the  shape face on it and the diagonal angle of nut match, continue to screw nut, make spanner folder binding nut,, reach the purpose of this utility model so that loosening or screw nut.

Claims (1)

1. monkey wrench, it includes handle, be with a slip on the handle and pull cover, this end of pulling cover and handle forms the spanner folder, it is characterized in that pulling on spanner folder the one side that cover contacts with nut is a  shape face, and one jiao of itself and hex nut matches, with pull an end that overlaps relative handle on the contacted one side of nut be a  shape face, another corresponding angles of itself and hex nut match, and make four faces that the spanner folder can clamping nut diagonal angle.