CN2065902U

CN2065902U - Welding guard

Info

Publication number: CN2065902U
Application number: CN 89220635
Authority: CN
Inventors: 卢桂枝; 陈若平; 卢馨
Original assignee: Individual
Current assignee: Individual
Priority date: 1989-12-09
Filing date: 1989-12-09
Publication date: 1990-11-21

Abstract

The utility model relates to a welding helmet which is characterized in that a helmet casing is compounded by two layers of plastic. The outer layer is hoary engineering plastic which has high strength, high temperature resistance and impact resistance; material with light reflecting property is added to the hoary engineering plastic. The inner layer is black engineering plastic which has good shading function. The helmet casing is made through injection molding processes; the inner layer can also be made through plating, spraying and painting processes. The glass of a view window is connected in drawing and inserting type. The welding helmet of the utility model has high reflectivity to harmful rays, strong heat insulating ability, good skin protecting function, light weight and corrosion resistance.

Description

Welding guard

This utility model relates to the protective mast that a kind of protector, particularly welder or similar work post are used.

The protective mast of welding usefulness adopts red steel paper to manufacture mostly at present.Because the particularity of this material character makes its production technology more complicated, stock utilization is low, the cost height.This material is lower to the reflectance of harm ray simultaneously, below 50%, change heat into after most rays are absorbed, thereby it is heat insulation and protection efficiency is relatively poor, and relatively heavier.

China utility model patent CN86202625 discloses a kind of plastic mask for arc welding, adopts plastics to replace vulcan fibre as manufacturing material, has simplified manufacture technology, has reduced cost, has shortened the production cycle.But it still exists harmful x ray refractive index x and the dissatisfactory problem of heat-insulating efficiency.

The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, provides a kind of higher to the harm ray reflectance, and heat-insulating capability and protective effect are stronger, and cost is low, the protective mast of handling ease.

Technical solution of the present utility model is: a kind of electric welding protective mask comprises mask shell, observation window, headband or handgrip.Its special character is that mask shell adopts the compound formation of double-layer plastic, its skin can adopt high strength, high temperature resistant, shock resistance, the canescence engineering plastics that thermal insulation is strong as modification polyethylene, modification polypropylene, ABS, nylon, polycarbonate, polystyrene etc., and add coloring agent within it, make it form canescence, to adapt to the needs of welding protection under the various conditions.In above-mentioned material, also be added with material, make it be silver gray, to improve its reflectance with reflective characteristic.The internal layer of housing adopts resistant to elevated temperatures black engineering plastics, makes it have interception preferably, has improved definition.Above-mentioned housing can adopt the injection molding process manufacturing, and its internal layer also can adopt plating, technology such as spray, be coated with makes.The shape of housing and structure can design as required.

Because adopt plastic material to manufacture housing, moulding process is fairly simple, thereby adopt better simply connected mode between observation window and the eyeglass on the mask shell, connect as adopting draw and insert-type, so that change eyeglass at any time.

Because plastic material is lighter, therefore also can be provided with and stings ring in the inboard of hand-held face shield.The operator can bite the operation of ring both hands when needed.

This utility model compared with prior art has following characteristics:

1. improved the reflectance to various harm rays, its reflectance is more than 85%, thereby skin is had the better protect effect.

2. heat-insulating capability is strong, is particularly useful for big electric current and welds for a long time.

3. handling ease, cost is low.

4. good insulating is corrosion-resistant, and it is convenient to clean.

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

Fig. 2 is that the A-A of Fig. 1 is to cut-away view.

Fig. 3 is the partial enlarged drawing of Fig. 2.

Be described in further detail below in conjunction with accompanying drawing:

Fig. 1, Fig. 2 Figure 3 shows that a kind of hand-held protective mast.Mask shell (1) bottom is provided with handgrip (2), and the middle part is provided with observation window (3), is provided with in the face shield to sting ring (7), and eyeglass (4) can insert in the groove on the window frame.The outer ABS plastic (5) that adopts of face shield wherein is added with the material with reflective characteristic.The face shield internal layer is coated with one deck thermal insulation black plastic (6) preferably.

Claims

1, a kind of electric welding protective mask, comprise mask shell (1), observation window (3), headband or handgrip (2), it is characterized in that mask shell adopts the compound formation of double-layer plastic, its ectomesoderm is to be added with the silver gray engineering plastics (5) with reflective characteristic material, and internal layer is the good black engineering plastics (6) of light-proofness.

2, electric welding protective mask according to claim 1 is characterized in that can being provided with in mask shell and stings ring (7).