CN2507431Y

CN2507431Y - Mask for welder

Info

Publication number: CN2507431Y
Application number: CN 01247388
Authority: CN
Inventors: 孙海建
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-08-23
Filing date: 2001-08-23
Publication date: 2002-08-28
Anticipated expiration: 2011-08-23

Abstract

An improved welding mask belongs to electric welding protection device, in particular to a welding eye protection mask. The body of the mask is hinged with one end of a linking plate and a rack, the other end of the linking plate is equipped with a gear by a rotating shaft and contacted with the rack by the gear, the rotating shaft of the gear is connected to a headband or a headband. The mask is comfortable for wearing and the center of gravity of the whole body can be kept at an appropriate position, the position is low when the mask is turned up, so fatigue of the head and the neck of wearer can be decreased.

Description

A kind of electric welder's helmet

This utility model belongs to the electric welding protector, particularly the electric welding Eye protective face mask.

Early stage electric welder's helmet structure is very simple, needs a handgrip holding during welding operation, and it is very inconvenient to use.Occurred on the market afterwards directly face shield being articulated in electric welder's helmet on the headband by rotating shaft, its operation has made things convenient for many than originally, but face shield is when digging, before the center of gravity of whole face shield is inclined to one side, and than higher, the electric welder wears very uncomfortable, and the time has been grown and caused head and neck fatigue easily.

The purpose of this utility model provides a kind of improved electric welder's helmet, and it wears comfortable, and the height of position of centre of gravity and front and back were more suitable when face shield was dug, and can alleviate the feeling of fatigue of head and cervical region.

Realize that technology of the present utility model is: mask body is articulated in an end and the tooth bar of connecting plate, and the other end of connecting plate is equipped with and the tooth bar pitch wheel by rotating shaft, and the rotating shaft of gear is connected in again on the headband (or safety helmet).When upwards digging mask body, face shield also comprises moving due to the engagement between gear, tooth bar except the rotating shaft on headband (or safety helmet) is rotated, and therefore the center of gravity of whole face shield can be moved backward, and its distance of centre of gravity rotating shaft is apart from weak point, and center of gravity is also lower when digging.

Below, two specific embodiments of the present utility model that provide according to Figure of description do to describe in further detail to its structure.

Fig. 1 puts down sketch map for this utility model head-type;

Fig. 2 digs sketch map for this utility model head-type;

Fig. 3 puts down sketch map for this utility model safety helmet type;

Fig. 4 digs sketch map for this utility model safety helmet type.

Referring to Fig. 1,2, the mask body 2 of this device each the hinged end of a connecting plate 4 of symmetric both sides that keeps to the side, and in the rotating shaft 5 of hinge tooth bar 6 is housed also, the other end of connecting plate 4 is equipped with and tooth bar 6 pitch wheels 8 by rotating shaft 7, and the rotating shaft 7 of gear 8 is connected in again on the headband 1.Fig. 3,4 to Fig. 1,2 similar, difference only is that the rotating shaft 7 of gear 8 is contained on the inserted sheet 9, inserted sheet 9 inserts again in the groove of safety helmet 10 both sides configuration (owing to block, not drawing this groove).Mask body 2 is when the operating position, and " A " on " O " of headband 1 (or safety helmet 10) point and the mask body 2 puts and to overlap, and sees Fig. 1 (or Fig. 3); When upwards turning over, mask body 2 changes around " O " point, move along camber line AB simultaneously, finally " O " point overlaps with " B " point, at this moment the center of gravity of mask body 2 is movable to from the nearer position of run-on point " O ", and position of centre of gravity has reduced some, so the operator wears comfortablely, can not feel the fatigue (seeing Fig. 2 or 4) of head and cervical region.For the position that makes mask body 2 better, tooth bar 6 has with it fixedly all-in-one-piece adjustable plate 11, has the pin 3 of projection above the adjustable plate 11, has the locating hole with pin 3 corresponding cooperations on the mask body 2, make pin 3 insert different locating holes, can adjust the position of mask body 2 slightly.

From technique scheme of the present utility model, the gravity centre adjustment mechanism of this face shield is simple in structure, can the center of gravity when digging be transferred to the optimum position, compare with traditional head-type electric welder's helmet, the center of gravity of whole face shield can after move and reduce about 35mm, therefore more comfortable when wearing, do not have the feeling of fatigue of head and cervical region.

Claims

1, a kind of improved electric welder's helmet is characterized in that an end and the tooth bar of the articulated connecting plate of mask body, the other end of connecting plate by rotating shaft be equipped with gear and with the tooth bar engagement, the rotating shaft of gear is connected in again on headband or the safety helmet.

2, by the described improved electric welder's helmet of claim 1, it is characterized in that being fixed as one, have the pin of projection above the adjustable plate, have locating hole on the mask body with the corresponding cooperation of pin with tooth bar and adjustable plate.