CN209792846U

CN209792846U - Portable underwater electric welding tongs

Info

Publication number: CN209792846U
Application number: CN201920405150.9U
Authority: CN
Inventors: 武新民
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-03-28
Filing date: 2019-03-28
Publication date: 2019-12-17
Anticipated expiration: 2029-03-28

Abstract

A portable underwater electric welding holder comprises an electric welding holder shell, a metal connecting piece, a welding power line and a linked switch, wherein the metal connecting piece is fixed inside the welding end of the electric welding holder shell and sealed by an insulating rubber plug; one end of a welding power line is inserted into the power line jack and is fixedly connected with the metal connecting piece through a screw, and the other end of the welding power line is connected with the electric welding machine; the linkage switch is fixed above the electrode holder shell and used for controlling the on-off of the switch connecting wire, and the joint of the linkage switch and the switch connecting wire is sealed through sealant. The end part of the metal connecting piece of the utility model is provided with a welding rod jack, the welding rod can be directly inserted into the jack, and the welding rod can be conveniently inserted; the linkage switch is arranged above the shell of the electrode holder, so that the protection of the eye protection lens and the connection and disconnection of a welding cable can be controlled simultaneously during welding, and the operation is simple, convenient and safe.

Description

portable underwater electric welding tongs

Technical Field

The utility model relates to an auxiliary clamp of electric welding under water belongs to electric welding technical field.

Background

The electric welder is to utilize the high temperature electric arc produced by the instantaneous approach of the two poles of the power source to melt the welding flux and the material to be welded on the welding electrode and to weld the contacted object. Electrode holders are used to hold the electrode and conduct current during welding and are the primary aids in arc welding. In underwater engineering, underwater welding operation is inevitable, and the performance of a handheld electrode holder serving as a main welding tool is directly related to safety of welding personnel, so that the electrode holder is required to have absolute insulation, and a welding cable is stably and reliably connected with the electrode holder and has good contact. Because the electrode holders need manual operation, the electrode holders are required to be more portable, the operation is simpler, and welding rods are installed quickly. However, the existing electrode holders are exposed in structure, and cannot cut off the power supply at any time during underwater welding, so that the existing electrode holders are easy to damage human bodies.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an overcome prior art drawback, provide a portable electric welding tongs under water, it has the welding rod and pegs graft conveniently, and is insulating reliable, and protective glass piece and welding power switch on in order mention electric welding tongs direct outage, easy and simple to handle safety.

The utility model provides a technical scheme that its technical problem adopted is:

A portable underwater electric welding holder comprises an electric welding holder shell, a metal connecting piece, a welding power line and a linked switch, wherein the metal connecting piece is fixed inside the welding end of the electric welding holder shell and sealed through an insulating rubber plug; one end of the welding power line is inserted into the power line jack and is fixedly connected with the metal connecting piece through a screw, and the other end of the welding power line is connected with a power supply of the electric welding machine; the linkage switch is fixed above the electrode holder shell and used for controlling the on-off of the switch connecting wire, and the joint of the linkage switch and the switch connecting wire is sealed through sealant.

Above-mentioned portable electric welding pliers under water, the linked switch includes insulating diolame, goggles control switch and welding power supply control switch all set up on the inside insulating seat of insulating diolame, goggles control switch set up in welding power supply control switch's top separates through insulating cushion between the two, insulating diolame upper end is provided with shift knob.

According to the portable underwater electric welding tongs, the knob of the fastening bolt is an insulating knob, and the joint of the insulating knob and the electric welding tongs shell is sealed through the insulating sealing gasket.

According to the portable underwater electric welding tongs, the handheld end of the electric welding tongs is provided with the sealing plug, and the free ends of the welding power line and the switch connecting line penetrate through the sealing plug to be sealed with the electric welding tongs shell.

According to the portable underwater electric welding tongs, the casing of the electric welding tongs is an insulating casing, and the outer surface of the handheld end of the electric welding tongs is provided with the evenly distributed anti-skidding bulges.

The utility model has the advantages that:

the metal connecting piece is sealed in the welding clamp shell and is completely isolated from water, so that the welding clamp is safe to use; the welding rod is inserted into the welding rod jack through the tightly attached insulating rubber gasket and is fixed in the welding rod jack through the fastening bolt, the disassembly is convenient, the knob of the fastening bolt adopts an insulating knob and is sealed with the connecting hole on the welding clamp shell through an insulating sealing gasket, and the reliable isolation from water is ensured; the linked switch is arranged, so that the goggles and the welding power supply can be sequentially controlled to be sequentially switched on or switched off. Before a linkage switch button is pressed, the electrode holders are directly put into the position needing to be welded in water, the putting position is accurate, the linkage switch is pressed, goggles on an underwater light filtering eyeshade are firstly electrified and shielded, and the linkage switch is continuously pressed, so that a welding power supply is switched on and arc welding is carried out; when the welding is stopped, the welding electrode holders are directly lifted, the welding end is separated from the welding part, the linked switch is loosened, the power supply is disconnected, and the eyes are prevented from being damaged by arc light. The whole electric welding process is simple to operate, the safety of welders is guaranteed, and the welding quality is also guaranteed.

Drawings

The present invention will be further explained with reference to the accompanying drawings.

FIG. 1 is a schematic view of the structure of the electrode holder of the present invention;

FIG. 2 is a schematic view of a linked switch;

FIG. 3 is a circuit diagram of a ganged switch control circuit;

Fig. 4 is a main circuit diagram.

In the drawings, the reference numerals denote: 1. a welding clamp shell; 1-1, anti-skid protrusions; 2. a metal connecting member; 2-1, inserting holes for welding rods; 2-2, power line jacks; 3. welding a power wire; 4. a ganged switch; 4-1, insulating and coating; 4-11, a switch button; 4-2, a goggle control switch; 4-3, welding power supply control switch; 4-4, insulating elastic cushion; 4-5, an insulating base; 5. Fastening a bolt; 6. welding rods; 7. an insulating rubber plug; 8. a screw; 9. a switch connecting wire; 10. sealing glue; 11. an insulating gasket; 12. and (4) sealing the plug.

Detailed Description

the present invention will be further described with reference to the following examples.

Referring to fig. 1, the portable underwater electric welding tongs comprises an electric welding tongs shell 1, a metal connecting piece 2, a welding power wire 3 and a linked switch 4, wherein the metal connecting piece 2 is fixed inside the welding end of the electric welding tongs shell 1 and sealed by an insulating rubber plug 7, one end of the metal connecting piece 2 is provided with a welding rod jack 2-1, the other end of the metal connecting piece is provided with a power wire jack 2-2, a welding rod 6 penetrates through the insulating rubber plug 7 and is inserted into the welding rod jack 2-1 and is screwed and fixed by a fastening bolt 5, an insulating sealing gasket 11 is arranged at the fastening part of the fastening bolt 5 and the electric welding tongs shell 1, a knob on the fastening bolt 5 is an insulating knob, the insulating knob is screwed to enable the fastening bolt 5 to tightly press the insulating sealing gasket 11 and one end of the welding rod 6, and the; one end of the welding power line 3 is inserted into the power line jack 2-2 and is fixedly connected with the metal connecting piece 2 through a screw 8, and the other end of the welding power line is connected with an electric welding machine; the linkage switch 4 is fixed above the electrode holder shell 1 and used for controlling the on-off of a switch connecting wire 9, and the joint of the linkage switch 4 and the switch connecting wire 9 is sealed by sealant 10 and isolated from water; the handheld end of the electric welding pliers is provided with a sealing plug 12, the free ends of the welding power line 3 and the switch connecting line 9 penetrate through the sealing plug 12 and the electric welding pliers shell 1 to be sealed and isolated from water, and the operation safety is guaranteed.

referring to fig. 2, the gang switch 4 comprises an insulating envelope 4-1, a goggle control switch 4-2 and a welding power control switch 4-3, the goggle control switch 4-2 and the welding power control switch 4-3 are both arranged on an insulating base 4-5 inside the insulating envelope 4-1 and are connected with a power supply, the goggle control switch 4-2 is arranged above the welding power control switch 4-3 and is separated from the welding power control switch by an insulating elastic pad 4-4, the goggle control switch 4-2 and the welding power control switch 4-3 are both made of phosphor copper elastic pieces, gaskets are arranged above upper electric contacts of the goggle control switch 4-2 and the welding power control switch 4-3, the upper end of the insulating envelope 4-1 is provided with a switch button 4-11, the manual switch button 4-11 is pressed by a human hand to control the on and off of the linked switch.

Referring to fig. 3 and 4, the voltage across the gang switch 4 is 12V, and the relay J₁The normally open contact controls the driving power supply of the automatic goggles, the relay J₂The two contacts are connected with an electric welding transformer, after the electric welding transformer transforms voltage, the electric welding voltage is output, the arc striking voltage is 20V, and the operation safety of operators is ensured within the human body safety voltage range.

The operation process is as follows: before electric welding, the electrode holders are put into water, welding rods 6 are accurately placed at the positions to be welded, the linkage switch is pressed, goggles on the underwater light filtering eyeshade shield shade light in advance, the linkage switch is continuously pressed downwards, a welding power supply is connected, and arc striking welding is carried out. After welding, the electrode holders are directly lifted, the welding ends are separated from the welding parts, the linked switch is loosened, the power supply is disconnected, the eyes are prevented from being damaged by arc light, and the welding work is finished. The whole welding operation is simple and safe, and the welding quality is ensured.

Claims

1. A portable underwater electrode holder is characterized in that: the electric welding tongs comprise an electric welding tongs shell (1), a metal connecting piece (2), a welding power line (3) and a linked switch (4), wherein the metal connecting piece (2) is fixed inside the welding end of the electric welding tongs shell (1) and sealed through an insulating rubber plug (7), one end of the metal connecting piece (2) is provided with a welding rod jack (2-1), the other end of the metal connecting piece is provided with a power line jack (2-2), and a welding rod (6) is inserted into the welding rod jack (2-1) and is screwed and fixed through a fastening bolt (5); one end of the welding power line (3) is inserted into the power line jack (2-2) and is fixedly connected with the metal connecting piece (2) through a screw (8), and the other end of the welding power line is connected with a power supply of an electric welding machine; the linkage switch (4) is fixed above the electrode holder shell (1) and used for controlling the on-off of the switch connecting wire (9), and the joint of the linkage switch (4) and the switch connecting wire (9) is sealed through a sealant (10).

2. The portable underwater electrode holder according to claim 1, wherein: the linkage switch (4) comprises an insulating coating (4-1), a goggles control switch (4-2) and a welding power supply control switch (4-3), the goggles control switch (4-2) and the welding power supply control switch (4-3) are arranged on an insulating seat (4-5) inside the insulating coating (4-1), the goggles control switch (4-2) is arranged above the welding power supply control switch (4-3) and separated from the welding power supply control switch through an insulating elastic pad (4-4), and a switch button (4-11) is arranged at the upper end of the insulating coating (4-1).

3. The portable underwater electrode holder according to claim 2, wherein: the knob of the fastening bolt (5) is an insulating knob, and the joint of the insulating knob and the electrode holder shell (1) is sealed through an insulating sealing gasket (11).

4. a portable underwater electrode holder according to claim 3, wherein: the handheld end of the electric welding pliers is provided with a sealing plug (12), and the free ends of the welding power line (3) and the switch connecting line (9) penetrate through the sealing plug (12) to be sealed with the electric welding pliers shell (1).

5. A portable underwater electrode holder according to claim 3, wherein: the electrode holder shell (1) is an insulating shell, and the outer surface of the handheld end of the electrode holder shell is provided with uniformly distributed anti-skidding bulges (1-1).