CN2604986Y

CN2604986Y - Handy electric-welding mask

Info

Publication number: CN2604986Y
Application number: CN 03215981
Authority: CN
Inventors: 孔德明
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-03-26
Filing date: 2003-03-26
Publication date: 2004-03-03
Anticipated expiration: 2013-03-26

Abstract

The utility model belongs to the welding helmet field, which comprises a shell, a transparent lens and a belt. The characteristics of the utility model lies in that the utility model has a black rotating lens and a balance weight which is balanced with the black lens and the spectacles frame. The black lens return spring is driven by the mandible, and through the linkage mechanism brings the black lens frame to rotate and open the window. When the mandible is closed, due to the force of the return spring, the black lens frame is driven to close the window. When the window is required to be open for a long time, the mandible touches the largest opening place and automatically keeps to the largest open state. The structure saves time, energy, and has simple production art and high utilizing value.

Description

Nimble welding helmet

This utility model is a kind of welding helmet, is a kind of flexible mirror chip welding helmet specifically.

Welding helmet and the patent No. 01243213.X welding helmet that uses all must take a hands at present, uses inconvenience, inefficiency.

When the purpose of this utility model just provides a kind of electric welder's operation all the spare time go out a hands and carry out other operations, and remove the nimble welding helmet handled without hands.

The purpose of this utility model is to realize like this, it comprises the welding helmet shell, the linkage of transparent glasses lens, mass colour activity lens frame, mass colour eyeglass, driving mass colour lens frame, with the balance weight that mass colour eyeglass and mass colour activity lens frame balance each other, return spring, regulating part, lower jaw pallet and control section are formed.The mass colour lens frame covers on outside the transparent glasses lens frame, when needing to observe the welding situation, supports the lower jaw pallet down with lower jaw, and by the linkage effect, the mass colour eyeglass is promptly opened.When need are opened in short-term, the mass colour lens frame rotates up maximum and is no more than 90, lower jaw returns and closes, the mass colour eyeglass returns automatically under the driving of return spring and closes, and when needing long-time the unlatching, the mass colour lens frame need rotate up slightly and surpass 90, when reaching rotate up maximum spacing, the lower jaw closure, control section works, and control mass colour lens frame is always being opened maximum rating, when needing closure, lower jaw supports the lower jaw pallet once more, control section effect out of hand, and lower jaw returns and closes, the mass colour eyeglass is closed under the effect of return spring, balance weight can make to be handled laborsavingly, and the medicated cap shell connects with employing activity between cover is with and lower limit stop bit device is arranged, and the medicated cap shell can be rolled on head or leave behind.The medicated cap shell is provided with transparent glasses lens and transparent glasses lens frame, and regulating part works the correct position effect of regulating the lower jaw pallet.

Employing the utlity model has following advantage: 1, the complete spare time in when welding goes out a hands and carries out other work.2, can open the mass colour eyeglass at any time, handle laborsavingly, when changing operating location, be easy to carry.3, make simply, cost is low.

Be elaborated below in conjunction with accompanying drawing:

Fig. 1, be structural representation of the present utility model;

Fig. 2, be the structural representation of shell 1 of the present utility model;

Fig. 3, be the structural representation of this utility model control section 2;

Fig. 4, be the structural representation of this utility model regulating part 5;

In conjunction with Fig. 1 to Fig. 4, welding helmet by shell 1, cover be with 9, mass colour lens frame 8, mass colour eyeglass 7, regulating part 5, control section 2, balance weight 3, return spring 6 and linkage 11 form.The mass colour eyeglass covers on the outside of transparent glasses lens 14, and transparent glasses lens 14 and frame 15 are embedded on the shell.When supporting lower jaw pallet 4 down, lower jaw drives balance weight 3 and mass colour activity lens frame 8 by linkage 11 and flexible connection point 10, two pivot points, 13 rotations on shell, the mass colour eyeglass is opened, when lower jaw is closed, under the driving effect of return spring 6, promote mass colour lens frame 8 and balance weight 3 counter-rotatings, mass colour eyeglass 7 closures, balance weight 3 can select equilbrium position and mass colour eyeglass and mass colour lens frame 8 to balance each other on bar, the guide effect of 16 shaft portion motions of pilot hole.

Control section 2 is made up of the gathering sill 21 on control spring 20 and shell 1 body.Control spring 20 1 ends are fixedlyed connected with linkage 11, and the other end is that hook-type moves at gathering sill 21 interior orientations.The principle of gathering sill 21 is just by the guiding movement of deep trouth after control spring 20 activities fall into deep trouth by shallow slot.A, B, C, D are 4 angle points, and A, B, C, D point are 4 deepest points of gathering sill 21, and along on the direction of A to B, B to C, C to D, D to A, groove all is shallowly to deepen suddenly when arriving another trough rim by being deep to.Control spring 21 hook ends A point in gathering sill 21 when mass colour eyeglass 7 closures, control spring 2 hook ends move in the A to B of gathering sill 21 direction when lower jaw supports down, instantly support the limit to the unlatching of mass colour eyeglass 7 at utmost the time, the hook end of control spring 21 falls into the deepest point B point of BC direction groove, after loosening lower jaw, make spring 20 to C points under the effect of return spring 6 and hook C point groove, mass colour eyeglass 7 is in normally open, when support down lower jaw pallet 4 once more and loosen after control spring move along C to D to the A direction and be back to A point, mass colour eyeglass 7 closures.

Regulating part 5 is made up of lock-screw 17, locking member 19 and pallet connecting rod 18.Locking member 19 is fixedlyed connected with shaft portion 11, and when screwing out lock-screw 17, pallet connecting rod 18 can move up and down the position of regulating lower jaw pallet 4 in the hole of locking member 19, and locking lock-screw 17 gets final product fixed tray connecting rod 18.

Shell 1 can be rolled over and leave behind, and knob 12 is provided with lower limit stop bit device.

Make things convenient for pivot point 13 for what manufacture and install, wide outer narrow groove in taking.

Claims

1, nimble welding helmet, comprise shell (1), cover band (9), transparent glasses lens (14) composition, it is characterized in that: be provided with the mass colour eyeglass (7) of a rotatable unlatching, be provided with balance weight (3), be provided with control section (2), lower jaw pallet (4), linkage (11) and return spring (6).

2, nimble welding helmet according to claim 1 is characterized in that said control section (2) is made up of control spring (20) and gathering sill (21).

3, nimble welding helmet according to claim 1 is characterized in that described linkage (11) is provided with regulating part (5).

4, nimble welding helmet according to claim 1 is characterized in that shell (1) can roll over and leave behind, and knob (12) has the lower limit of leaving behind stop bit device.