CN2832402Y

CN2832402Y - High temperature resistant scald-free electric welding clamp

Info

Publication number: CN2832402Y
Application number: CN 200520064575
Authority: CN
Inventors: 刘阳光
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-09-16
Filing date: 2005-09-16
Publication date: 2006-11-01
Anticipated expiration: 2015-09-16

Abstract

The utility model particularly relates to a pair of high temperature resistant scald-free electric welding clamps. The utility model comprises an upper clamping body and a lower clamping body, and the front end of the upper clamping body and the front end of the lower clamping body are hinged together by a connecting rod and a connecting pin. A cable wire is arranged in the lower clamping body in a connecting way, and the front end of the upper clamping body and the front end of the lower clamping body are respectively formed with a clamp mouth which is respectively formed by an upper clamp mouth and a lower clamp mouth. A spring is arranged between the upper clamping body and the lower clamping body in a supporting way, the tail end of the upper clamping body and the tail end of the lower clamping body are respectively connected with an upper handle and a lower handle, and the whole length of the upper clamping body and the upper handle is longer than the whole length of the lower clamping body and the upper clamping body. The clamp mouths bend downwards, a pressing tongue is arranged on the upper clamp mouth, and the lower clamp tongue is molded with a pressing groove corresponding to the pressing tongue. The utility model reaches the effects of simple and reasonable structure, free scald, high temperature resistance and long service life after the utility model adopts the technical scheme.

Description

A kind of high temperature resistant non scalding hand electric welding tongs having

Technical field:

The utility model relates to the soldering appliance technical field, refers in particular to a kind of high temperature resistant non scalding hand electric welding tongs having.

Background technology:

In electric welding field, electrode holders clamping welding rod and bearing great current make between welding rod and the welding base metal and produce electric arc, melt welding rod and mother metal welds with this.See shown in the accompanying drawing 1, the cable link 01 of existing electrode holders is installed in the lower clamp 02 that the worker grips, because in welding process, when the operator grips when being installed in lower clamp 02 and welding, the cable junction is under the effect of heavy current, the heat that has a resistance causes that this lower clamp 02 place's surface temperature raises, and directly influences welding operation so that scald one's hand.

Summary of the invention:

The purpose of this utility model is to overcome the deficiencies in the prior art part, and a kind of high temperature resistant non scalding hand electric welding tongs having rational in infrastructure is provided.

For achieving the above object, the technical scheme that the utility model provides is: include front end by connecting rod and hinged upper clamp of connecting pin and lower clamp, cable conductor is mounted in the lower clamp, the front end moulding of upper clamp and lower clamp is formed separately the jaw of upper clamp nozzle and lower clamp nozzle formation, support between upper clamp and the lower clamp spring is installed, the tail end of upper clamp and lower clamp is connected with upper handle and lower handle respectively, and the total length of upper clamp and upper handle is longer than the total length of lower clamp and upper clamp; And jaw is bent downwardly.

Described upper clamp nozzle is equipped with the pressure tongue, and lower clamp nozzle forms indent to pressing tongue.

After the utility model adopts technique scheme, because upper handle is installed in the upper clamp afterbody, cable conductor then is installed in the lower clamp, and operating current can only pass through from lower clamp, during work, lower clamp is owing to the operative temperature of resistance heat constantly rises, and there is not resistance heat in upper clamp owing to there is not electric current to pass through.And because contact-making surface is very little between upper clamp and the lower clamp, considerably less in the lower clamp by heat transfer to the heat that reaches upper clamp, thereby it is then more small to arrive the heat of upper handle of the upper clamp tail end of being made by the very low material of thermal conductivity factor.Because the total length of upper clamp and upper handle is longer than the total length of lower clamp and upper clamp, mainly carries out welding job when the worker operates, and need not to contact too much the lower clamp of high temperature by gripping upper handle; In addition, pressure tongue, indent structure in the jaw have been stopped in the prior art because of electrode holders use for a long time, and the jaw part is worn and torn because of the erosion that is subjected to high-temperature oxydation, and cause the welding rod of clamping to become flexible and influence life-span of electrode holders.Moreover jaw is bent downwardly, and makes the direction unanimity of the welding rod direction of clamping with the soldering turret center of gravity, makes the operator more handy; Therefore the utility model has reached simple and reasonable, non-scald on hand, high temperature resistant, effect that the life-span is long.

Description of drawings:

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

Accompanying drawing 1 is prior art electrode holders structural representations;

Accompanying drawing 2 is the utility model structural representation;

Accompanying drawing 3 is Fig. 2 partial structurtes schematic diagrames.

The specific embodiment:

See shown in the accompanying drawing 1, this preferred embodiment includes front end by connecting rod and mutual hinged upper clamp 11 of connecting pin and lower clamp 12, cable conductor 6 is mounted in the lower clamp 12, the front end moulding of upper clamp and lower clamp is formed separately the jaw of upper clamp nozzle 21 and lower clamp nozzle 22 formations, support between upper clamp 11 and the lower clamp 12 spring 3 is installed, the tail end of upper clamp and lower clamp is connected with upper handle 41 and lower handle 42 respectively, main feature is: the total length of upper clamp and upper handle is longer than the total length of lower clamp and upper clamp, and jaw is bent downwardly, the operator just can mainly carry out welding job by upper clamp 11 when operation like this, and has avoided the operator owing to the hot lower clamp 12 of long-term gripping causes and can't work.In addition, wear and tear because of the erosion that is subjected to high-temperature oxydation in order to overcome in the prior art jaw part, and cause the welding rod of clamping loosening and influence life-span of electrode holders, the utility model is equipped with pressure tongue 51 at upper clamp nozzle, and lower clamp nozzle forms indent 52 to pressing tongue.

The above embodiment of preferred embodiment of the present utility model only is preferred embodiment of the present utility model; be not to limit practical range of the present utility model with this; so the equivalence that all shapes according to the utility model, structure and principle are done changes, and all should be covered by in the protection domain of the present utility model.

Claims

1, a kind of high temperature resistant non scalding hand electric welding tongs having, include front end by connecting rod and hinged upper clamp of connecting pin (11) and lower clamp (12), cable conductor (6) is mounted in the lower clamp (12), the front end moulding of upper clamp and lower clamp is formed separately the jaw of upper clamp nozzle (21) and lower clamp nozzle (22) formation, support between upper clamp (11) and the lower clamp (12) spring (3) is installed, the tail end of upper clamp and lower clamp is connected with upper handle (41) and lower handle (42) respectively, and it is characterized in that: the total length of upper clamp and upper handle is longer than the total length of lower clamp and upper clamp; And jaw is bent downwardly.

2, a kind of high temperature resistant non scalding hand electric welding tongs having according to claim 1 is characterized in that: described upper clamp nozzle is equipped with presses tongue (51), and lower clamp nozzle forms indent (52) to pressing tongue.