CN2321028Y - Light-operated visible workpiece welding eye protector - Google Patents
Light-operated visible workpiece welding eye protector Download PDFInfo
- Publication number
- CN2321028Y CN2321028Y CN 97249350 CN97249350U CN2321028Y CN 2321028 Y CN2321028 Y CN 2321028Y CN 97249350 CN97249350 CN 97249350 CN 97249350 U CN97249350 U CN 97249350U CN 2321028 Y CN2321028 Y CN 2321028Y
- Authority
- CN
- China
- Prior art keywords
- liquid crystal
- light
- light valve
- crystal light
- electric
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses eye protecting glasses of electric weld of visual work pieces in a light controlling type, which belongs to the electric welder's labor health product. The side of the middle position of a resin base plate and a resin cover plate in a sealing frame is provided with filtering glasses and a liquid crystal valve. The other side is provided with solar batteries, a circuit board and a circuit covering plate. The liquid crystal light valve and the solar batteries are connected into the driving circuit of light control of the liquid crystal light valve by electric components. The natural light interference is prevented. The control response speed of arc lights is smaller than 4 ms. The eyes can not be harmed by using thick or thin welding sticks. The work pieces are visible and the weld quality can be guaranteed. The mask does not need to be repeatedly disassembled. The utility model is widely suitable for the field of welding technology.
Description
Light-operated visible workpiece Eye protector for welder belongs to electric welder's work health treatment.
Generally the eyeglass on the electric welding eye guard of Shi Yonging only just can be seen workpiece operation after the starting the arc, when drawing weldering and change welding rod and current interruption, sparking must take away eye guard, eyes are kept away and unavoidably will be subjected to the arc light injury, and occupational illness such as cataract take place easily. and the extinction bar is posted at the interval on the safety goggles of eye guard that has.What also have pastes the grizzly bar can absorb electric welding light on the safety goggles both sides.But the dazzling arc light of part also can be injected eyes from the slit.Our ZL9421856.7 patent: visible workpiece Eye protector for welder electric welder's eyes when using thin welding rod preserve from.When using thick welding rod arc light cross not too suitable by force.
The purpose of utility model is: provide a kind of welding rod specification that is not subjected to use restriction can both guarantee the novel light-operated visible workpiece Eye protector for welder that electric welder's eyes preserve from.
The utility model technical scheme: according to the optical technology principle in package frame, upper strata dress resin substrate, side dress optical filtering and liquid crystal light valve below it, opposite side dress solar battery group, optically controlled liquid crystal light valve drive circuit plate and circuit board cover plate, lower floor's dress resin cover plate, liquid crystal light valve is connected by electric principle by electric elements with solar battery group and forms the optically controlled liquid crystal light valve drive circuit.
The advantage of utility model: anti-natural light disturbs, and arc light control response speed is soon less than 4ms; Use thick, thin welding rod can guarantee that all electric welder's eyes preserve from, can see workpiece during operation clearly and ensure the quality of products, need not unload face shield repeatedly.Be widely used in welding technology field.
Accompanying drawing 1: light-operated visible workpiece Eye protector for welder section structure diagrammatic cross-section.
Accompanying drawing 2: optical filtering is to the transmittance graph figure of different wavelengths of light.
Accompanying drawing 3: optically controlled liquid crystal light valve drive circuit schematic diagram.
Embodiment carries out in conjunction with Fig. 1.Bonding successively optical filtering 3 liquid crystal light valve sheets 4 and solar battery group 6 optically controlled liquid crystal light valve drive circuit plates 7 circuit cover plates 8 on transparent resin substrate 2, last bonding transparent resin cover plate 5.Parallel for guaranteeing each layer of diopter bonding requirements.With the packaged package frame 1 that goes up of the mirror that sticks to one.During use it is installed on the eye-protective frame of electric welding helmet, the housing of mirror holder and electric welding helmet is fixed, and optical filtering 3 is pressed the ZL94218561.7 patented technology and implemented, and the filter glass of making that ins all sorts of ways must meet curve map 2 requirements, and error allows about 5%.Optical filtering can make the ultraviolet ray in the electro-welding arc, and the royal purple light wavelength is 0 in 500nm wave band internal transmission factor.To the most responsive green light transmissivity of human eye be limited in about 10%, yellow, orange, ruddiness suitably restriction see through and be as the criterion can see workpiece clearly.Liquid crystal light valve sheet 4 combines Fig. 3 with the relation of electrically connecting of solar battery group 6 to carry out.Can not power though electric battery E also produces voltage under natural light road work has only the voltage that produces down when the electro-welding arc irradiation to reach 15V, through C
1Be coupled to in-phase input end 3 pin of operational amplifier IC, resistance R
1Can guarantee coupled signal have certain amplitude and IC inverting input 2 pin voltage ratio, 2 pin are by resistance R
2Diode D is clamped on low level, and 3 pin current potentials are higher than 2 pin, IC
1Pin output high level signal is through R
3, R
4Dividing potential drop provides a suitable trigger pip for the base stage of switching tube G.C
2Can accelerate the conducting speed C of G
3Can prolong the ON time of G, occur scintillation when preventing liquid crystal light valve LCD work.The G conducting exchanges pierce circuit A work, and negativing ending grounding produces alternating voltage and drives the change of LCD state, strengthens protective effect by white blackening rapidly.Electric elements except that liquid crystal light valve and solar battery group all are weldingly fixed on the circuit board by schematic diagram.
Claims (1)
1, light-operated visible workpiece Eye protector for welder is made up of optical filtering, it is characterized in that: upper strata dress resin substrate in package frame, side dress optical filtering and liquid crystal light valve below it, opposite side dress solar battery group, optically controlled liquid crystal light valve drive circuit plate and circuit board cover plate, lower floor's dress resin cover plate, liquid crystal light valve is connected by electric principle by electric elements with solar battery group and forms the optically controlled liquid crystal light valve drive circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97249350 CN2321028Y (en) | 1997-12-01 | 1997-12-01 | Light-operated visible workpiece welding eye protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97249350 CN2321028Y (en) | 1997-12-01 | 1997-12-01 | Light-operated visible workpiece welding eye protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2321028Y true CN2321028Y (en) | 1999-05-26 |
Family
ID=33956283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97249350 Expired - Fee Related CN2321028Y (en) | 1997-12-01 | 1997-12-01 | Light-operated visible workpiece welding eye protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2321028Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109069296A (en) * | 2016-05-04 | 2018-12-21 | 3M创新有限公司 | For welding the bending cover glass of protection |
-
1997
- 1997-12-01 CN CN 97249350 patent/CN2321028Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109069296A (en) * | 2016-05-04 | 2018-12-21 | 3M创新有限公司 | For welding the bending cover glass of protection |
| US11129748B2 (en) | 2016-05-04 | 2021-09-28 | 3M Innovative Properties Company | Curved eye protection shield for welding protection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |