CN2523548Y

CN2523548Y - Hand-held welding gun switch

Info

Publication number: CN2523548Y
Application number: CN 01274318
Authority: CN
Inventors: 马国强
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-12-18
Filing date: 2001-12-18
Publication date: 2002-12-04
Anticipated expiration: 2011-12-18

Abstract

The utility model belongs to an electric welding gun technical field, in particular to a handheld electric welding gun switch. The utility model comprises a trigger, a contact 1 and a contact 2 respectively connected with two ends of a circuit, a fixing seat fixing the two contacts, and a swing arm which can be pulled by the tail end of the trigger; one end of the swing arm is embedded on the fixing seat; the upper part of the contact 1 is divided into two fork feet and bent in a reverse L shape; the bent part of the contact 1 is provided with an auxiliary contact which is provided with two arms with gaps which are right clamped on the two fork feet of the contact 1; the lower part of the auxiliary contact is provided with a contact point; the handheld electric welding gun switch comprises a spring; one end of the spring is connected to the swing arm; the other end of the spring passes through the upper part of the contact 1 and is connected to the auxiliary contact. The handheld electric welding gun switch of the utility model has good contact effect, and ensures the movable contact to be well contacted with the static contact by exerting a small pressure on the trigger.

Description

Hand-hold type electric torch switch

Technical field

The utility model belongs to the electric torch technical field, is meant a kind of hand-hold type electric torch switch especially.

Background technology

Existing hand-hold type electric torch switch as shown in Figure 2, it comprises a trigger 13, the movable contact spring 15 and the static contact 14 of difference connecting circuit two ends, the fixing holder 16 of movable contact spring 15 and static contact 14, trigger 13 when pulled, can direct mobile movable contact spring 15, and movable contact spring 15 is contacted with static contact 14, thus make circuit turn-on.At this moment,, will on trigger 13, apply a bigger pressure that continues, otherwise movable contact spring 15 will disconnect with static contact 14 because of insufficient pressure if make circuit continue conducting, long-time operation like this, it is tired that staff can be felt.In addition, movable contact spring 15 directly contacts by people's hand pressure with static contact 14, and when staff was tired, the contact effect changed with the pressure size, and the contact effect is bad.

Summary of the invention

Technical problem to be solved in the utility model provide a kind of contact effective, as long as on trigger, apply the hand-hold type electric torch switch that a less pressure just can make movable contact spring and static contact well contact.

The utility model solves the problems of the technologies described above the technical scheme that is adopted: a kind of hand-hold type electric torch switch, it comprises a trigger, the contact one and the contact two of difference connecting circuit two ends, fix the holder of two contacts, it comprises the swing arm that can be stirred by described trigger tail end, and this swing arm one end is embedded on the described holder; The top of described contact one is divided into the y-bend pin and is

Shape bending also is provided with an auxiliary contact at the bending part of contact one, and described auxiliary contact is provided with two support arms jaggy, just is stuck on the y-bend pin of contact one, and this auxiliary contact bottom is provided with the contact; Described hand-hold type electric torch switch comprises a spring, and an end of this spring is connected in the described swing arm, and the top that the other end passes described contact one is connected on the described auxiliary contact.

Can be provided with post in described swing arm, described spring is connected on the post.

Can have aperture on described auxiliary contact, described spring is connected on the aperture.

Compared with prior art, trigger of the present utility model when pulled, the trigger tail end is stirred swing arm, makes swing arm layback, swing arm spurs spring by post, and the contact on the auxiliary contact is contacted with contact two, at this moment, circuit turn-on.By the strength of spring, as long as applying a less pressure on trigger just can make circuit continue conducting, and the contact effect contacts effective with big or small change that exert oneself.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is that the A of Fig. 1 is to partial view (amplification);

Fig. 3 is the structural representation (amplification) of auxiliary contact of the present utility model;

Fig. 4 is the prior art constructions schematic diagram.

Embodiment

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.

A kind of hand-hold type electric torch switch shown in Fig. 1～3, it comprises a trigger 1, distinguishes the contact 1 and the contact 26 of connecting circuit two ends, fixes the holder 5 of two contacts, it also comprises the swing arm 9 that can be stirred by described trigger 1 tail end, and these swing arm 9 one ends are embedded on the described holder 5; The top of described contact 1 is divided into y-bend pin 10 and is

Shape bending also is provided with an auxiliary contact 3 at the bending part of contact 1, and described auxiliary contact 3 is provided with two support arms 11 that have a breach, just is stuck on the y-bend pin 10 of contact 1, and these auxiliary contact 3 bottoms are provided with contact 4; Described hand-hold type electric torch switch comprises a spring 7, and an end of this spring 7 is connected in the described swing arm 9 by post 8, and the top that the other end passes described contact 1 is connected on the described auxiliary contact 3 by aperture 12.

Trigger 1 when pulled, trigger 1 tail end is stirred swing arm 9, makes swing arm 9 layback, swing arm 9 makes the contact 4 on the auxiliary contact 3 contact with contact 26 by post 8 pulling springs 7, at this moment, circuit turn-on.By the strength of spring 7, just can make circuit continue conducting as long as on trigger 1, apply a less pressure.Contact 1 and contact 26 just can not disconnect because of insufficient pressure, long-time operation like this, and it is tired that staff can not felt.When one that applies less pressure is removed, to bow before making swing arm 9, swing arm 9 makes the contact 4 on the auxiliary contact 3 open in 26 minutes with contact by post 8 pulling springs 7.

Claims

1, a kind of hand-hold type electric torch switch, it comprises a trigger, distinguishes the contact one and the contact two of connecting circuit two ends, fixes the holder of two contacts, it is characterized in that: it comprises the swing arm that can be stirred by described trigger tail end, and this swing arm one end is embedded on the described holder; The top of described contact one is divided into the y-bend pin and is Shape bending also is provided with an auxiliary contact at the bending part of contact one, and described auxiliary contact is provided with two support arms jaggy, just is stuck on the y-bend pin of contact one, and this auxiliary contact bottom is provided with the contact; Described hand-hold type electric torch switch comprises a spring, and an end of this spring is connected in the described swing arm, and the top that the other end passes described contact one is connected on the described auxiliary contact.

2, a kind of hand-hold type electric torch switch as claimed in claim 1, it is characterized in that: be provided with post in described swing arm, described spring is connected on the post.

3, a kind of hand-hold type electric torch switch as claimed in claim 1, it is characterized in that: have aperture on described auxiliary contact, described spring is connected on the aperture.