CN2071569U

CN2071569U - Combined screw-driver with tweezers function

Info

Publication number: CN2071569U
Application number: CN 90202510
Authority: CN
Inventors: 林益平
Original assignee: Individual
Current assignee: Individual
Priority date: 1990-03-05
Filing date: 1990-03-05
Publication date: 1991-02-20

Abstract

The utility model provides a combined screw-driver with tweezers, in which a pair of tweezers and a screw-driver are combined into a whole. An outer circular cylinder with a pair of tweezers is sheathed on the rod of a common screw-driver. The outer circular cylinder can slide along the axial direction of the rod. The opening and the closing of the tweezers can be operated smartly by controlling the outer circular cylinder arranged on the rod of the screw-driver by fingers. The combined screw-driver with tweezers is especially suitable for loading and unloading screws buried in deep holes and slots where fingers is difficult to extend in. The utility model which can replace common tweezers and screw-drivers is an assembly tool for various maintenance, electrician and meter industries.

Description

Combined screw-driver with tweezers function

The utility model is a kind of screwdriver that has tweezers, particularly a kind of instrument that loads and unloads screw.

Existing screwdriver when the loading and unloading screw, must help to buttress screw with the another hand.When loading and unloading are in the slit deep hole or during the screw at other compact conformation positions, especially finger can do nothing to help the screw location when being screwed into, cause toner screw or sliding tooth easily.When preventing that toner screw from using magnetic screwdriver, tend to cause toner screw because of magnetic force is too little; When near running into nonferromugnetic material screw or screw, having, just can't solve above-mentioned difficulties than high-intensity magnetic field.

The utility model imagination is combined small-sized tweezers and screwdriver, uses the tweezers clamp screws, and when screwdriver was screwed into screw, tweezers unclamped automatically, to reach the purpose that addresses the aforementioned drawbacks.

The utility model is controlled the compositions such as overcoat cylinder, tweezers and spring of tweezers by the normal screws cutter.Adorn a Sealing shield ring in the knife bar front portion, on knife bar, the front end of overcoat cylinder compresses tweezers to the overcoat cylinder together with the tweezers cuff.Under the spring force effect, the overcoat cylinder top is to the hilt place, tweezers pressurized and clamping.Under finger when pushing away cylinder, tweezers discharge under self elastic force.Under the situation of tweezers pinching screw, press down screwdriver, knife bar can overcome tweezers intermediate plate elastic force and stretch out, and with assurance screw is screwed in the screw.

Fig. 1 is the utility model schematic diagram.

As shown, this screwdriver is by the normal screws cutter, compositions such as the overcoat cylinder 3 of control tweezers, tweezers 1, Sealing shield ring 2, spring 4,8.Front end clip at knife bar 6 has Sealing shield ring 2, plays the effect that tweezers are deviate from that limits.Tweezers 1 are made up of three intermediate plates, are subjected to the anchor ear of overcoat cylinder 3, are positioned the knife bar front end.Overcoat cylinder 3 is the hollow cylinder, and an end of anchor ear tweezers is the convergence shape, to compress tweezers; Be fixed with a spring-leaf retainer 5 at the middle part.One end of spring 4 with hold on seat ring 5, the other end withstands on the tweezers root.Spring 8 is taken in screwdriver in the tweezers.

During use, hold the screwdriver handle, push away the overcoat cylinder before forefinger and the thumb and loosen tweezers, tweezers open under self elastic force, cancel external force, and under elastic force 4 effects, the overcoat cylinder retreats and clamps tweezers.When the loading and unloading screw was in the screw of deep hole slit, tweezers were clamped screw and are put into screw, press down screwdriver and screw in screw.When screw moved down gradually, screwdriver backed down tweezers intermediate plate elastic force and stretches out, until with screw cap with remove external force again after the screw end face is concordant even sagging, at this moment, under the effect of spring 8, in the screwdriver retraction tweezers.

The utility model compared with prior art has following advantage: can be used as respectively tweezers or screwdriver; Clamping and need only can once operate in place by one hand when being screwed into screw; Can convert existing screwdriver.

Claims

1, a kind of tweezer that tweezers and screwdriver are combined is criticized combination screw driver, comprise screwdriver rod 6, hilt 7, overcoat cylinder 3, tweezers 1 and spring 4,8, it is characterized in that: the knife bar front end is equipped with tweezers 1, overcoat cylinder 3 is sleeved on the knife bar 6, one end cuff is at the root of tweezers 1, under the effect of spring 4, the overcoat cylinder clamps tweezers.

2, screwdriver as claimed in claim 1 is characterized in that described tweezers are made up of the intermediate plate more than three.