CN2088918U

CN2088918U - Hend (electric) welding torch

Info

Publication number: CN2088918U
Application number: CN 91205539
Authority: CN
Inventors: 刘庆福
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-04-05
Filing date: 1991-04-05
Publication date: 1991-11-20

Abstract

The utility model relates to an electric welding gun, mainly comprising a gun body, a trigger 14 and a gun holder 1. Simultaneously, a steering head 5 is arranged between the gun body and the gun holder, so that welding angle can be adjusted. The utility model has the advantages of safe and convenient operation, simple structure, easy fabrication and great popularization value.

Description

Hend (electric) welding torch

The utility model relates to soldering appliance, particularly a kind of hand-held electric torch.

Soldering appliance is of a great variety at present, is the hand-held electrode holders mostly concerning the arc welding welding.Its structure is to be made of duck-beak type binding clip, pressure mechanism, power connection, insulating sleeve etc. substantially.There is following drawback in it: 1, jaw is wide is 30 millimeter, burns near 40～60 millimeters places of jaw when welding rod is molten, and jaw blocks sight line, has to abandon these welding rods of 12～18%; 2, jaw contacts with welding rod and has only three line segments, loose contact, poorly conductive, the scaling loss of easily striking sparks jaw; 3, for ensureing welding quality, must strengthen source current, cause waste; 4, welding rod clamps not strongly, and as ascend operation, welding rod lands, and causes unsafe factor etc.Disclose a kind of portable soldering turret Chinese patent CN88205505.4 number in the recent period, this soldering turret mainly is at solving handling safety, be easy to carry, improving and design service life.They are different with the purpose of this utility model.

The utility model improves at the deficiencies in the prior art, mainly is by improving the method for clamping of welding rod, overcome the disadvantage of blocking the work sight line, save welding rod, increase the conductor contact-making surface, improve electric conductivity, saving the magnitude of current etc.

The utility model is achieved by following manner: a kind of hand-held electric torch, comprise the rifle body portion, trigger portion and small of the stock part, it is characterized in that: said rifle body portion, a gun barrel is arranged, be equipped with in it by spring-supported dop, front end is equipped with and protects mouth between dop and gun barrel, protects mouth inner convex platform lock ring on the awl waist of dop, can make dop load onto welding rod like this after, its internal diameter closely contacts with discard electrode, protect mouth and also be cone, its conehead can be 10 millimeters, and the external diameter that promptly protects mouth portion is 10 millimeters, when welding rod is molten when burning root, avoid protecting the sight line that the operating point is blocked in mouth portion, the welding rod of coating is all effectively used, saved welding rod, promptly no longer abandon 12～18% welding rod, if protect mouth and burn out accidentally, can change at any time, unlikely scrap whole welding gun, improved the service life of instrument, simultaneously, the tappet that striker is housed is set in the dop, it is connected on the trigger by nut.The said small of the stock partly is connected with the rifle body portion by steering head, it mainly is according to using needs to regulate soldering angle, be provided with the joint that connects by sunk screw below the steering head, there is holding screw to fix at the adapter plate back side, can not make connecting portion loosening because of moving steering head repeatedly, joint is connected with power line, and its outside is provided with sheath and sleeve.Said trigger portion is made up of the trigger cover of trigger and outside thereof, and they are connected on the gun barrel by screw.

Said dop is cone and vertically has uniform notch along it, generally can be four, four of dop head inwall grooves four faces in addition closely contact with the welding rod external diameter like this, core diameter is big more, its contact-making surface is big more, electric conductivity than three line contacts of existing electrode holders is much better, reliability, the weldability of striking have been improved thus, saved the magnitude of current, and dop do not have the gap with welding rod and contacts, and do not produce sparking like this, the dop of not ablating, welding rod is difficult drop-off more, has improved serviceability.

Above-mentioned said dop and joint can adopt the aluminium bronze manufacturing, and wherein the existing good electric conductivity of dop can guarantee working strength again, simultaneously than existing electrode holders consumption copper low 10%.Sleeve can adopt the bakelite manufacturing, and sheath and trigger cover can adopt ambroin and rubber manufacturing, and they all are the 500A insulating parts usually, can not produce Danger Electric shock risk to the operator, and are safe and reliable.

The utility model in use if welding rod is molten when only burning the remaining welding rod head that is held, can promote trigger, relatively welding gun post-tensioning, drive the dop that steering head connects, the compression spring, make the dop waist break away from the constraint of protecting mouth, unclamp the dop mouth simultaneously, and under the effect of striker, eject discard electrode, again new welding rod is inserted welding gun thereupon and protect mouth, when loosening trigger, make spring recover tension force, dop is headed into protect in the mouth again, make discard electrode by dop banding firmly, operation is very easy.

The utility model is compared with prior art, have simple in structure, save welding rod, improve electric conductivity, save the magnitude of current, the clamping welding rod is firm, uses characteristics such as easy to operate and safe.

Fig. 1 is a front view of the present utility model,

Fig. 2 is the cutaway view of Fig. 1,

Among the figure: 1 welding gun handle, 2 joints, 3 sunk screws, 4 sheaths, 5 steering heads, 6 protect that mouth, 7 dops, 8 strikers, 9 tappets, 10 heat insulating washers, 11 springs, 12 gun barrels, 13 nuts, 14 triggers, 16 holding screws, 17 countersunk head spiral shells are ordered, 18 sleeves.

Most preferred embodiment of the present utility model, as shown in Figure 1, 2.

The utility model is achieved by following manner: a kind of hand-held electric torch, comprise the rifle body portion, trigger portion and small of the stock part, it is characterized in that: said rifle body portion, a gun barrel 12 is arranged, the dop 7 that supports by spring 11 is housed in it, 12 front ends of dop 7 and gun barrel are equipped with and protect mouth 6, protect mouth 6 inner convex platform lock rings on the awl waist of dop 7, can make dop 7 load onto welding rod like this after, its internal diameter closely contacts with discard electrode, protect mouth 6 and also be cone, its conehead can be 10 millimeters, and the external diameter that promptly protects mouth 6 heads is 10 millimeters, when welding rod is molten when burning root, avoid protecting the sight line that mouth 6 heads block the operating point, can make the welding rod of coating that use is effectively all arranged like this, saved welding rod, promptly no longer abandon 12～18% welding rod, if protect mouth 6 and burn out accidentally, can though the time change, unlikely scrap whole welding gun, improved the service life of instrument, simultaneously, the tappet 9 that 8 strikers are housed is set in the dop 7, it is connected on the trigger 15 by nut 13.The said small of the stock partly is connected with the rifle body portion by steering head 5, it mainly is according to using needs to regulate the welding gun angle, be provided with the joint that connects by sunk screw 3 below the steering head 5, there is holding screw 16 fixing at the adapter plate back side, can not make connecting portion loosening because of moving steering head 5 repeatedly, joint 2 is connected with power line, and its outside is provided with sheath 4 and sleeve 18.Said trigger portion is made up of the trigger cover 14 of trigger 15 and outside thereof, and they are connected on the gun barrel 12 by screw.

Said dop 7 vertically has uniform notch for cone and along it, generally can be four, four faces beyond four grooves of dop 7 head inwalls closely contact with the welding rod external diameter like this, core diameter is big more, its contact-making surface is big more, electric conductivity than three line contacts of existing electrode holders is much better, reliability, the weldability of striking have been improved thus, saved the magnitude of current, and dop 7 do not have the gap with welding rod and contacts, and do not produce sparking like this, the dop 7 of not ablating, welding rod is difficult drop-off more, has improved serviceability.

Above-mentioned said dop 7 and joint 2 can adopt the aluminium bronze manufacturing, and wherein dop 7 existing good electric conductivity can guarantee working strength again, simultaneously than existing electrode holders consumption copper low 10%.Sleeve 18 can adopt the bakelite manufacturing, and sheath 4 and trigger cover 14 can adopt ambroin and rubber manufacturing, and they all are the 500A insulating parts usually, can not produce Danger Electric shock risk to the operator, and are safe and reliable.

The utility model in use, if welding rod is molten when burning the only remaining welding rod head that is held, can promote trigger 15, relatively welding gun post-tensioning, drive the dop 7 that steering head 5 connects, compression spring 11, make the awl waist of dop 7 break away from the constraint of protecting mouth 6, unclamp the dop mouth simultaneously, and under the effect of striker 8, eject discard electrode, again new welding rod is inserted welding gun thereupon and protect mouth 6, when loosening trigger 15, make spring 11 recover tension force, dop 7 is headed into protect in the mouth 6 again, make discard electrode by dop 7 banding firmly, operation is very easy.

Claims

1, a kind of hand-held electric torch comprises rifle body portion, trigger portion and small of the stock part, it is characterized in that:

A, said rifle body portion have a gun barrel, are equipped with in it by spring-supported dop, and front end is equipped with and protects mouth between dop and gun barrel, protect mouth inner convex platform lock ring on the awl waist of dop, and the tappet that striker is installed is set in the dop, and it is connected on the trigger by nut;

B, the said small of the stock partly are connected with the rifle body portion by steering head, are provided with the joint that is connected by sunk screw below the steering head, and joint is connected with power line, and its outside is provided with sheath and sleeve;

C, said trigger portion are made up of the trigger cover of trigger and outside thereof, and they are connected on the gun barrel by screw.

2, hand-held electric torch as claimed in claim 1 is characterized in that said dop is cone and vertically has uniform notch along it.

3, hand-held electric torch as claimed in claim 1 is characterized in that said dop and joint can adopt the aluminium bronze manufacturing, and sleeve can adopt the bakelite manufacturing, and sheath and trigger cover can adopt ambroin or rubber manufacturing.