CN2428254Y

CN2428254Y - Electric welding tongs

Info

Publication number: CN2428254Y
Application number: CN 00206212
Authority: CN
Inventors: 徐延明
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-03-07
Filing date: 2000-03-07
Publication date: 2001-05-02
Anticipated expiration: 2010-03-07

Abstract

The utility model relates to a pair of electric welding tongs which can be not spotted for lasting use. The utility model utilizes a lever principle to slit the surface of a welding rod through an upper and a lower cutting edges at the front end of an upper and a lower handle bodies which are hinged, and cuts in the welding rod so that the welding rod is held. Meanwhile, a detent which is hinged at the back end of the upper handle body and a ratchet which is fixed at the back end of the lower handle body are used for positioning.

Description

Electrode holders

The present invention relates to a kind of soldering appliance, particularly relate to a kind of electrode holders.

All with red copper or copper alloy manufacturing, purpose is to wish its favorable conductive and heat radiation to the electrode holders that are found everywhere.The clamp method of this kind electrode holders all is to clamp welding rod with spring force, high-temperature dust that produces when welding rod melts in actual use and the bead that splashes have been stained the clamp port of this kind electrode holders gradually, along with the prolongation soldering turret of working time and the contact condition of welding rod constantly worsen, cause starting the arc difficulty, instability, the caloric value of electrode holders constantly rises, even the welder can't be operated, and electric energy has been wasted in excessive heating.

The object of the present invention is to provide a kind of many scarce limit that overcomes the clipping electrode holders of spring, bad as contact condition, the starting the arc is unstable, stain easily and new hinged holding type electrowelding tongs that heating, clamping are tight etc.

Technical scheme of the present invention is to realize like this.These electrode holders comprise upper and lowerly can take out around the handle body of bearing pin twisting, pin, the insulating sheath of segmentation on leaf spring and the upper and lower handle body, the location ratchet of upper and lower handle body afterbody and ratchet etc., it is characterized in that upper and lower handle body front end is shaped on cutting edge, this cutting edge when the clamping welding rod, rely on the electric welder to upper and lower handle body once or the secondary hinge of holding with a firm grip open the welding rod surface, incision welding rod head reaches about half of diameter deeply.Simultaneously cutting with scissors tight position by the location ratchet of handle body afterbody and ratchet at this locatees automatically.Welding current feeds in the welding rod from cutting edge incision welding rod by the handle body, presses the upper and lower handle body of location ratchet with thumb and separates under the leaf spring effect, and welding rod and soldering turret break away from.

Because adopt such scheme, the soldering turret tong chops can not stained gradually, need not adopt red copper or copper alloy will make manufacturing cost drop to a brand-new zone.

Below in conjunction with drawings and Examples the utility model is further specified.

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

Fig. 2 is the A-A cutaway view of Fig. 1.

Insulation sleeve 2, bearing pin 3 among the figure 1, before the lower handle, go up handle body 4, leaf spring 5, go up insulation sleeve 6, ratchet 7 behind the handle body, go up insulation sleeve 9, ratchet spring 10, lower handle and ratchet 11, lower handle cutting edge 12 behind insulation sleeve 8 before the handle body, the lower handle, go up handle body cutting edge

In Fig. 1, last handle body (3) is hinged with lower handle and ratchet (10) by bearing pin (2), one end of leaf spring (4) is fixedlyed connected with last handle body (3), one end of ratchet spring (9) is also fixedlyed connected with last handle body (3), ratchet (6) is hinged by the rear end of small clevis pin with head and last handle body (3), and each insulation sleeve is fastened on corresponding site with Luo Ding.Welding rod can place between lower handle cutting edge (11) and the last handle body cutting edge (12) at any angle, handle body (3) and lower handle and ratchet (10) make them mutually by disturbing on holding with a firm grip, lower handle cutting edge (11) will cut the welding rod surface simultaneously with last handle body cutting edge (12) and cut about half of welding rod head diameter like this, simultaneously ratchet (6) under ratchet spring (9) effect and lower handle and ratchet (10) cut with scissors tight position at this and locate automatically.With thumb press ratchet spring (9) effect down and lower handle and ratchet (10) in leaf spring (4) effect down separately around bearing pin (2), while lower handle cutting edge (11) also separates around bearing pin (2) with last handle body cutting edge (12), welding rod breaks away from soldering turret automatically.

Claims

1, a kind of electrode holders, in forward and backward, upper and lower insulating sheath, include upper and lower can be around the location ratchet and the ratchet of handle body, bearing pin, leaf spring and the tail end thereof of bearing pin twisting, it is characterized in that: said upper and lower handle body front end is shaped on cutting edge, this cutting edge cuts with scissors when the clamping welding rod and snaps in the bar surface incision welding rod, simultaneously, cut with scissors tight position with the ratchet that is fixed on the lower handle afterbody at this by the location ratchet that is hinged on handle body tail end and locate automatically, welding current feeds in the welding rod from cutting edge incision welding rod by the handle body.

2, electrode holders according to claim 1, it is characterized in that: said location ratchet can be around the small clevis pin with head swing hinged with last handle body tail end in insulating sheath, this insulating sheath has the semicircle breach of a side direction in distance electrode holders tail end 10 centimeters, 8 millimeters of outstanding this breach of location ratchet are pressed ratchet to make things convenient for the welder with the right hand or left hand thumb.