CN211326111U - Automatic light-changing electric welding protective eyeshade - Google Patents

Abstract

The utility model discloses an automatic darkening welding protective goggle, which comprises an eye mask and a mirror frame fixed on the eye mask, the mirror frame comprises a mirror cover and an inner frame, and the upper end of the mirror cover is pivotally connected to the inner frame to form a flip structure , the mirror cover is provided with a photoelectric sensor, the inner frame is provided with an automatic light-changing filter, the circuit of the automatic light-changing filter is connected with a PCB circuit board, and the PCB circuit board is provided with an amplifier circuit, Discrimination circuit, signal conversion circuit and control circuit; the two sides of the mirror frame are respectively provided with a light adjustment switch and a sensitivity adjustment switch. The utility model uses the photoelectric induction principle to change the liquid crystal automatic light-changing filter from a bright state to a dark state at the moment of receiving the arc light, and can automatically change from a dark state to a bright state after welding, thereby protecting the eyes of users from avoiding Convenience and practicality against harmful radiation from arc, infrared and ultraviolet.

Description

An automatic darkening welding protective goggles

technical field

The utility model relates to the technical field of protective goggles, in particular to an automatic darkening welding protective goggles.

Background technique

Protective goggles are labor protection products that workers often use to protect eyes in the modern industrial production process. In many processing processes, high temperature and strong light will be encountered, especially similar to metal welding.

In the traditional arc welding field, most people use a piece of dark glass that can block infrared and ultraviolet rays on the viewing hole, and the brightness of the perspective mirror cannot be adjusted according to the brightness of the environment. Eye.

Utility model content

The purpose of the present invention is to provide an automatic darkening welding protective goggle, which solves one or more of the above-mentioned problems in the prior art.

According to one aspect of the present invention, there is provided an automatic darkening welding protective goggle, comprising an eye mask and a mirror frame fixed on the eye mask, the mirror frame includes a mirror cover and an inner frame, the upper end of the mirror cover is pivotally connected to the inner frame to form a flip structure, and the mirror A photoelectric sensor is arranged on the cover, an automatic light-changing filter is arranged on the inner frame, and a circuit on the automatic light-changing filter is connected with a PCB circuit board, and the PCB circuit board is provided with an amplification circuit, a discrimination circuit, a signal conversion circuit and a control circuit; Two sides of the mirror frame are respectively provided with a light adjustment switch and a sensitivity adjustment switch.

Among them, the light adjustment switch is used to adjust the light and dark degree of the automatic light change filter, and the sensitivity adjustment switch is used to adjust the sensitivity of the automatic light change filter.

In some embodiments, the mirror cover is provided with an interference buckle, and the interference buckle can fasten the mirror cover and the inner frame.

In some embodiments: the mirror cover is provided with a see-through mirror.

In some embodiments: the see-through lens employs UV-blocking lenses. Therefore, the use of anti-ultraviolet lenses can avoid the damage of external ultraviolet rays to the eyes.

In some embodiments: the auto-dimming filter employs an LCD liquid crystal lens.

In some embodiments: a battery and a power switch are circuit-connected on the PCB circuit board. Thus, each circuit is powered by the battery, and the power switch can be used to control the operation and shutdown of the circuit.

In some embodiments: the eyewear is provided with an elastic strap for a person to wear on the head. Therefore, it is convenient for people to wear the eye mask on the head.

Beneficial effects:

The utility model uses the photoelectric induction principle to automatically change light welding protective goggles, which can change the liquid crystal automatic light change filter from a bright state to a dark state at the moment of receiving the arc light, and can automatically change from a dark state to a bright state after the welding is completed. , so as to protect the user's eyes from the harmful radiation of arc light, infrared rays and ultraviolet rays, which is convenient and practical.

Description of drawings

Fig. 1 is the structural representation of a kind of automatic dimming welding protective goggles of the present utility model;

2 is a schematic diagram of the internal structure of a kind of automatic darkening welding protective goggles of the present utility model;

FIG. 3 is a schematic diagram of the circuit structure of the PCB board.

Reference signs and descriptions:

1. Eye mask; 2. Mirror frame; 21. Mirror cover; 211, Interference buckle; 212, Perspective lens; 22, Mirror frame; switch; 6, sensitivity adjustment switch; 7, battery; 8, power switch; 9, elastic band.

Detailed ways

The present utility model will be described in further detail below with reference to the accompanying drawings.

As shown in FIG. 1 , an automatic darkening welding protective goggle includes a goggle 1 and a mirror frame 2 fixed on the goggle 1. The mirror frame 2 includes a mirror cover 21 and an inner frame 22, and the upper end of the mirror cover 21 is pivotally connected to the inner frame 22. A flip structure is formed; the mirror cover 21 is provided with an interference buckle 211 , and the interference buckle 211 can fasten the mirror cover 21 and the inner frame 22 together.

In some embodiments, a perspective mirror 212 is provided on the mirror cover 21, and the perspective mirror 212 adopts an ultraviolet-proof lens, so as to avoid the damage to the eyes caused by external red and ultraviolet rays.

A photoelectric sensor 3 is arranged on the mirror cover 21, an automatic light-changing filter 221 is arranged on the inner frame 22, and the automatic light-changing filter 221 adopts an LCD liquid crystal lens. The two sides of the mirror frame 2 are respectively provided with a light adjustment switch 5 and a sensitivity adjustment switch. 6. The light adjustment switch 5 is used to adjust the light and dark degree of the automatic light change filter 221 , and the sensitivity adjustment switch 6 is used to adjust the sensitivity of the automatic light change filter 221 .

In some embodiments, the eye mask 1 is provided with an elastic band 9 for a person to wear on the head.

As shown in Figures 2 and 3, the circuit on the automatic light-changing filter 221 is connected with a PCB circuit board 4, and the circuit on the PCB circuit board 4 is connected with a battery 7 and a power switch 8, the battery 7 supplies power to each circuit, and the power switch 8 controls the circuit Amplifying circuit, discriminating circuit, signal converting circuit and control circuit are arranged on the PCB circuit board 4, the signal end of the photoelectric sensor 3 is connected to the input end of the amplifying circuit, and the output end of the amplifying circuit is connected to the control circuit by connecting the discriminating circuit The input end of the circuit and the output end of the control circuit are connected to the controlled end of the automatic dimming filter 221 .

The working principle of the utility model is as follows: firstly turn on the power switch 8, then adjust the light adjustment switch 5 and the sensitivity adjustment switch 6 to control the light and dark levels and the sensitivity of the automatic light-dimming filter 221, after setting a certain level, use the contact button 221 The mirror cover 21 is fastened, and the eyecup 1 is put on by using the elastic band 9, and the electric welding operation can be performed. In the process of electric welding, a strong electric spark will be generated, the perspective mirror 212 on the outer layer of the mirror cover 21 will filter out harmful red and ultraviolet rays, and then the photoelectric sensor 3 will receive the light signal generated by the electric spark and convert it into electricity The signal and electrical signal are amplified by the amplifying circuit, extracted by the identification circuit and output to the control circuit. Finally, the control circuit adjusts by controlling the automatic dimming filter 221 to change it into suitable light, thereby achieving the purpose of automatic dimming.

The above is only the preferred mode of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the inventive concept of the present invention, several similar deformations and improvements can also be made. For utility model protection.

Claims (7)

1. An automatic darkening welding protective goggle, characterized in that: comprising a goggle (1) and a spectacle frame (2) fixed on the goggle (1), the spectacle frame (2) comprising a mirror cover (21) and an inner frame ( 22), the upper end of the mirror cover (21) is pivotally connected to the inner frame (22) to form a flip structure, the mirror cover (21) is provided with a photoelectric sensor (3), and the inner frame (22) is provided with a photoelectric sensor (3). An automatic light-changing filter (221) is provided, a PCB circuit board (4) is connected to the circuit on the automatic light-changing filter (221), and an amplifier circuit, an identification circuit, a signal A conversion circuit and a control circuit; the two sides of the mirror frame (2) are respectively provided with a light adjustment switch (5) and a sensitivity adjustment switch (6). 2 . The automatic lightening welding protective goggles according to claim 1 , wherein the mirror cover ( 21 ) is provided with an interference buckle ( 211 ), and the interference buckle ( 211 ) can attach the mirror to the mirror. 3 . The cover (21) is fastened with the inner frame (22). 3 . The automatic darkening welding protective goggles according to claim 1 , wherein a perspective mirror ( 212 ) is provided on the mirror cover ( 21 ). 4 . 4 . The automatic darkening welding protective goggles according to claim 3 , wherein the perspective lens ( 212 ) adopts an anti-ultraviolet lens. 5 . 5 . The automatic light-shading welding protective goggles according to claim 1 , wherein the automatic light-shading filter ( 221 ) adopts an LCD liquid crystal lens. 6 . 6 . The automatic light-changing welding protective goggles according to claim 1 , wherein a battery ( 7 ) and a power switch ( 8 ) are connected to the circuit on the PCB circuit board ( 4 ). 7 . 7 . The automatic light-shading welding protective goggles according to claim 1 , wherein the goggles ( 1 ) are provided with elastic straps ( 9 ) for people to wear on the head. 8 .

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