CN2138014Y

CN2138014Y - Rapidly fastening and self regulating spanner

Info

Publication number: CN2138014Y
Application number: CN 92223226
Authority: CN
Inventors: 李凤武; 张金良
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-05-27
Filing date: 1992-05-27
Publication date: 1993-07-14
Anticipated expiration: 2002-05-27

Abstract

The utility model relates to a rapid fastening and self regulating movable spanner, which belongs to a hand tool, and is technically characterized in that a gear structure is used to replace a screw structure of a common spanner. The rear part of a movable jaw is used to process rack bars. The front end of the spanner is provided with fan-shaped teeth which are engaged with the rack bars to drive the movable jaw to move in a guide groove of a fixed jaw. When the spanner is not used, the jaw is naturally closed by a torsion spring. When the spanner is used, a handle is pressed for self-regulated and fastening. When the spanner is rotated under the action of force, the jaw can automatically clamp and can rotate workpieces, and the jaw expands in the course of return. The utility model has the advantages of simple structure and convenient operation, can improve efficiency, and is easy to implement.

Description

Rapidly fastening and self regulating spanner

Fast card self-regulated monkey wrench belongs to monkey wrench in the hand-operated tools.

The normal activity spanner can open the plate mouth for rotation spiral shell wheel or is closed, time-consuming, effort, and Yi Huansong, the hexagonal side of bolt or nut damages easily simultaneously.No. 90201603.2 patent disclosures of Chinese patent utility model a kind of " fast tuned plate mouth monkey spanner ", be on the monkey wrench basis, axis direction at screw flight upper edge screw rod, mill the cross sectional shape groove identical one with the tooth bar cross sectional shape, only need rotating screw bolt the plate mouth is opened fully or closure, rotating screw bolts can make the plate mouth sting clamping of workpieces once enclosing at most.

The purpose of this utility model is to adopt gear structure, makes a kind of monkey wrench of quick degree of tightness, and it is time-consuming to overcome existing helical structure monkey wrench, and effort is easily delayed defectives such as pine.

The concrete structure of card self-regulated monkey wrench is as shown in Figure 1 soon:

Fast card monkey wrench, form by parts such as fixed head mouth 1, Flexible spanner mouth 2, tooth bar 4, sector gear 5 and handles 9, the front end of handle 9 is provided with sector gear 5, the rear portion of plate mouth 2 has straight shape tooth bar 4, pulling mouth 1 and handle 7 fuses, to pull mouth 1, plate mouth 2 and handle 9 strings with bearing pin 8 and be in the same place, torque spring 6 usefulness pins are fixed on the bearing pin 8.4 drives of sector 5 interlock tooth bars are pulled mouth 2 and are moved in pulling mouthful 1 guide groove 3, and the effect by spring 6 when not working makes plate mouth closure naturally.

The fast card self-regulated monkey wrench of making by said structure, press handle 7 during use, pull mouth and can open, block bolt or nut workpiece to required any size, move handle 9 then, promptly can be used to screw or loosening workpiece, because the effect of lever force is firmly big more on handle 9, the power of chucking is just big more, the nature rotary handle is arbitrarily angled, and the plate mouth is unrestricted, leans on the torque spring active force to make when not working and pulls a mouthful auto-closing.

Should block the tandem product that monkey wrench can be made into 150,200,250,300 millimeters different size soon.

The utility model blocks the self-regulated monkey wrench soon following advantage:

Few, the easy processing of workpiece, cost are low, debug soon, easy to use, flexibly, are rotated in the forward clamping, can open to opposite spin, and jaw size is adjustable arbitrarily, and is laborsaving, stressedly are directly proportional with active force, do not damage bolt or nut hexagonal side, good reliability.

The structure cutaway view of accompanying drawing 1 fast card monkey wrench, wherein

1, fixedly pulls mouth, 2, the Flexible spanner mouth, 3, sliding guide groove, 4, the Flexible spanner mouth rack, 5, sector, 6, torque spring, 7, handle, 8, bearing pin, 9, handle.

Accompanying drawing 2 fast card self-regulated monkey wrench profile side views

Accompanying drawing 3 fast card self-regulated monkey wrench backhaul idle running schematic diagrames

Embodiment of the present utility model: make the monkey wrench of 250mm and two kinds of specifications of 300mm by Fig. 1, sector is made trapezoidal teeth, with bearing pin with the Flexible spanner mouth, fixedly pull and mouthful be in the same place with the handle string.After the forward reinforcing rotates to an angle during use, need not take off adjustable wrench, the backhaul of can oppositely dallying, when spanner oppositely dallies to the new room face of workpiece, forward adds torque wrench again, pull two also rotations of planes in addition of salty neocaine clamping of workpieces, continued operation, tighten or unload until workpiece, torque spring 6 is fixed on a side of bearing pin 8, and an end of torque spring 6 inserts in the hole of handle 7, and the other end injects in the hole of spanner 9, because the effect of torque spring power, make and fixedly pull mouth 1 and Flexible spanner mouth 2 is kept closed constantly.

Claims

1, a kind of fast card self-regulated monkey wrench, form by parts such as back-up wrench, monkey wrench and handles, it is characterized in that back-up wrench 1 and spanner 7 fuse, Flexible spanner mouth 2 rear portion manufacturing gear strips 4, the front end of handle 9 is provided with sector 5, to fixedly pull mouth 1, portable plate mouth 2 and handle 9 strings with bearing pin 8 is in the same place, torque spring 6 is enclosed within on the bearing pin 8, compress with lug cap, torque spring 6 steel wires one end inserts in the hole of handle 7, the other end injects in the hole of handle 9, because the effect of torque spring 6, makes and fixedly pulls mouth 1 and Flexible spanner mouth 2 is kept closed constantly.