KR100665493B1 - Welding helmet having auto-glare shield and ventilator - Google Patents

Abstract

A welding helmet having an automatic light shield welding face and a harmful gas exhaust structure is provided to exhaust the harmful gas with separating the dust and to automatically move up and down a light shield glass by operating a forward and reverse drive motor by a sensor. In the welding helmet, a shielding cloth(11) is formed at the lower end of a helmet body(10) having a see-through window(20) on the front side. A suction/discharge device has a suction and blowing motor and a water tank communicating with each other through a blowing pipe and a discharge pipe. The helmet body communicates with the suction and blowing motor through a spring pipe(40). The helmet body has an external suction pipe(30) and an inner passage(31) communicating with the spring pipe. A forward and reverse drive motor(27) electrically interlocking with an optical sensor(21) is installed at one side of the helmet body. A light shield glass(22) equipped with rollers(23) at upper and lower ends of the left and right sides is disposed in the rear side of the see-through window. The light shield glass is vertically slid by driving the rollers fitted to a guide rail(24). A pinion(25) vertically installed at the light shield glass is engaged with a rack(26) of a forward and reverse reduction motor(27).

Description

       Welding helmet having auto light welding surface and harmful gas exhaust structure {Welding helmet having auto-glare shield and ventilator}

1 is an overall configuration diagram of the present invention

2 is a main configuration of the helmet body of the present invention

Figure 3 is a cross-sectional view showing the interior of the intake and exhaust device of the present invention

4 is an exploded perspective view of a partially separated shading glass structure of the present invention;

5 is a front view of an upward movement state of the light shielding glass of the present invention;

6 is a front view of a downward movement state of the present invention shading glass

<Explanation of symbols for main parts of drawing>

10: Helmet Body 11: Garment

20: sight window 21: light sensor

22: shading glass 23: roller

24: guide rail 25: pinion

26: rack 27: forward and reverse drive reduction motor

30: suction pipe 31: internal passage

40: spring tube 50: suction and discharge device

51: suction and blowing motor 52: water tank

53: blower pipe 54: discharge pipe

60: wheels

The present invention provides a welding helmet having an automotive light welding surface and a noxious gas exhaust structure for the purpose of effectively discharging gas and dust generated during welding and automatically protecting eyes from direct light generated during welding. It is about.

The present invention is a series of structural devices in order to achieve the above object, especially in the helmet worn during welding is composed of an organic related configuration is excluded a separate harmful gas removal device for protecting the operator from harmful gases generated during conventional welding In addition, the light shielding glass that is configured on the welding surface of the helmet is characterized in that it is to operate automatically by removing from the conventional manual work.

In general, the see-through window or see-through port of the welding helmet, that is, the welding surface, is formed with shading glass. When it starts, it protects the worker's eyes by shielding the see-through window from the direct light generated when welding.

Conventionally, before the start of welding the light-shielded glass to be squeezed up from the welding surface to secure the field of view and during the welding it is repeated to block the viewing window to block the viewing window, which is quite cumbersome and adds to the fatigue of the arm pointed out It became.

Therefore, the present applicant has proposed a structure for operating the light-shielding glass up and down to improve this problem. (Utility Model Registration Application No. 2006-2354)

However, the prior application design does not completely solve the problem of poor workability as it does not escape the limit of manually operating the shading glass.

In particular, until now, workers were exposed to harmful gases generated during welding or they were provided with a separate device to remove them from harmful gases. This is not only excessive installation cost but also cumbersome to avoid installation. As a result, they are suffering from harmful gases.

In addition, even if the harmful gas removal device is installed, it is discharged as it is with dust, causing environmental pollution.

In order to solve the above problems, the present invention has a related configuration in which harmful gas is inhaled and removed from the helmet body and the exhaust device is integrated. Even in the operation of the glass, the lifting operation of the shading glass by the action of the forward and reverse drive motor by the sensor is to be automatically performed.

Accordingly, the present invention has a structure in which a series of suction and discharge devices consisting of a blower motor and a water tank are connected by a helmet body and a spring tube, and the shading glass formed on the shading welding surface is driven in the forward and reverse directions by detecting light from a sensor The structure consists of a rack of forward and reverse drive speed reduction motors and a pinion of shading glass.

That is, the present invention is a structure in communication with the spring tube and the inner communication tube inside the helmet body and the corrugated tube formed on the front of the helmet body to pass the harmful gas generated during welding passes through the tank, the dust is deposited in the tank and the water surface in the bubble state In order to discharge the harmful gas to the outside, while the spring tube of the present invention can be freely and flexibly changed direction, but the rigid body after the change of direction to maintain the rigid body connected to it without the operator wearing the helmet body Make it work.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

A cover 11 is formed at the bottom of a conventional helmet body 10 having a viewing window 20 on the front surface, and the suction and blower motor 51 and the water tank 52 communicate with the blower pipe 53 and the discharge pipe on one side. And a structure in which the helmet body 10 and the suction and blower motor 51 are coupled to each other by a spring tube 40, and the helmet body 10 includes a series of suction and discharge devices 50 having 54. The structure of the external suction pipe 30 and the inner inner passage 31, respectively configured to communicate with the spring pipe 40, and the forward and reverse drive reduction motor (27) electrically connected to the optical sensor 21 ) Is mounted on one side of the helmet body 10 and the rear of the viewing window 20 constitutes a light shielding glass 22 having rollers 23 mounted on the left and right upper and lower ends, so that the rollers 23 are driven by being inserted into the guide rails 24. The shading glass 22 is to be vertically slid operation, but the shading glass 22 has a pinion 25 mounted vertically on one side thereof. It characterized the associated structure the combined value and rack 26 in the same geared motor (27).

Reference numeral 60 denotes a wheel for the purpose of easy movement of the suction and discharge device.

On the other hand, the suction pipe 30 is a somewhat rigid corrugated pipe, if it is extended for a long time to maintain the elongated state as it is reduced, the wrinkles are folded and fixed in a reduced state.

In addition, the spring tube 40 also has its own support as a flexible metal tube that can bend flexibly and freely change direction. Accordingly, the spring pipe 40 maintains a fixed state without losing its original shape such as collapsed in the state after the change of direction.

Therefore, the helmet main body 10 connected thereto maintains the fixed state at the selected position even when the worker is not worn by the support force of the spring tube 40.

The inner passage 31 is configured to be in close contact with the upper end of the inner surface of the helmet body 10 of the helmet body 10 to communicate with the spring tube 10 and the suction pipe 30 formed on the front forehead portion of the helmet body 10.

The outlet of the lower tank 52 side of the one side blower pipe 53 communicating with the suction and blow motor 51 and the tank 52 is configured as a reverse displacement structure and is opened only when the air is discharged toward the tank 52. If there is no inflow of air so that it is sealed so that the water in the water tank 52 does not flow back to the blower pipe (53).

The forward and reverse drive reduction motor 51 adopted in the present invention is mounted on the helmet body 10 to perform the lifting operation of the shading glass 22, which is a rechargeable battery in consideration of the weight of the helmet body 10. It is adopted to use a small and even this small motor is not unreasonable to perform the simple lifting operation of the light shielding glass 22.

The present invention configured as described above fixes the helmet body 10 to the position to maintain the most desirable visual distance with the object to be welded during the welding operation.

As described above, the helmet main body 10 is connected to a spring tube 40 that has a bending force and a change in direction, but has a self-supporting force, so that the helmet main body 10 can be freely fixed to a selected position without any difficulty. .

Subsequently, the suction pipe 30 formed in the forehead portion of the helmet body 10 is elongated and positioned close to the upper portion of the welded object to be welded.

As described above, if the suction pipe 30 is elongated as a slightly rigid corrugated pipe, the suction pipe 30 is maintained as it is.

In such a state, the worker inserts the head into the helmet body 10 as if the helmet body 10 is worn on the head, but actually faces the helmet body 10 as close as possible without being worn.

Therefore, the worker is to escape from the weight of the helmet body (10).

The sight glass 20 before the start of the welding operation is a state in which the light shielding glass 22 installed at the rear thereof is moved upward as shown in FIGS. 4 and 5, and the lower end of the sight glass 20 is opened to allow perspective to the outside. to be.

When the preparation for the welding operation is completed, the welding to the object to be welded is started together with the operation of the suction and blowing motor 51 configured in the one suction and discharge device 50.

At this time, the light generated by the welding operation with the start of welding is detected by the forward and backward drive reduction motor 27 and the optical sensor 21 electrically connected to operate the forward and backward drive reduction motor 27 to build a rack built on the shaft ( 26) and thus lowers the pinion 25 engaged with the rack 27.

That is, the rack 26 and the pinion 25 engaged with each other have a structure for converting rotational motion into a linear motion. The pinion 25 is vertically lowered by the rotational motion of the rack 26. Accordingly, the light shielding glass 22 having the pinion 25 mounted thereon is moved downward as shown in FIG. 6 by the lowering action of the pinion 25 to block the lower end of the see-through window 20 to disconnect the worker's view from the outside. This protects the operator's eyes from the direct light generated during welding.

In addition, when the light shielding glass 22 completes the lowering at the desired position, the load is momentarily applied to the forward and backward drive speed reduction motor 27 to stop the operation of the forward and backward drive speed reduction motor 27.

Of course, the operation of the forward and backward driving reduction motor 27 uses a general-purpose technology.

On the other hand, the suction and blowing motors 51 installed in the suction and discharge device 50 are simultaneously operated together with the operation of the light shielding glass 27, that is, by the suction and blowing motors 51 being operated. At the end of the suction pipe 30, a strong suction force is generated.

Hazardous gases generated during welding by the suction force are sucked toward the suction and blow motor 51 through the inner passage 31 and the spring tube 40 communicated with the suction pipe 30. Toxic gas is blown through the one side blow pipe (30) and is pumped into the water tank (52).

Therefore, the dust of the harmful gas introduced into the water tank 52 is precipitated at the bottom of the water tank 52 and the harmful gas is floated on the surface of the water tank 52 in a bubble state and discharged through the final discharge pipe 54.

When a large amount of dust deposited in the water tank 52 is separated, the suction and discharge device 50 is separated up and down to wash the dust cleanly, and then water is also used continuously.

Meanwhile, when the welding operation is suspended, the light sensor 21 detects that the light disappears and thus the light disappears, thereby driving the forward and backward driving reduction motor 27 in reverse.

Accordingly, the pinion 25 is vertically raised by the rack 26 that is rotated as opposed to the previous operation, and the light shielding glass 22 is moved upward by the synergism of the pinion 25, thereby causing the As the lower end is opened, the operator can grasp the welding state or the position to be welded again as the visibility is secured to the outside.

That is, in the present invention, before the start of welding, the light shielding glass 22 is moved upward, and the lower end of the see-through window 20 projected to the outside is opened to prepare for welding, and an optical sensor by light at the moment of welding is performed. The front and rear drive deceleration motor 27 is operated by the detection of the 21 to operate the rack 26 and the pinion 25 engaged with each other to move the light shielding glass 22 downward so that the lower end of the see-through window 20 is externally moved. Blocking and to protect the operator's eyes from the working light generated during welding.

When the welding operation is stopped, the shading glass may be driven by the reverse driving of the rack 26 and the pinion 25 according to the reverse rotation of the forward and backward driving reduction motor 27 according to the detection of the optical sensor 21 according to the disappearance of light. 22) repeats a series of actions to move upward again to secure the operator's view.

Of course, even during the lifting operation of the shading glass 22 according to the welding process, such as welding preparation and welding work, the operation of the one side suction and discharge device 50 continues to discharge harmful gases while temporarily stopping the welding work. If the length is slightly longer, the operation of the suction and discharge device 50 may be temporarily suspended to reduce unnecessary waste of power.

On the other hand, the shielding cloth 11 is coupled to the lower front of the helmet body 10 of the present invention, which will protect the operator from the direct light that is adversely affected by sparks or body scattered during welding.

In addition, the suction and discharge device 50 has a wheel 60 is mounted on the bottom of the body to facilitate movement.

As described above, the present invention does not need to install a separate toxic gas removal device with a large volume or weight in addition to the conventional helmet during welding, and in particular, in the lifting operation of the shading glass of the helmet body, the conventional manual operation was performed. By avoiding irrational structure, it detects light generation and extinction generated during welding so that the shading glass can be lifted and lowered automatically, while working without the helmet body directly, the worker's head movement is very free. There is no weight, so you won't be tired even if you work for a long time.

Accordingly, the present invention provides a very eco-friendly device by effectively removing the harmful gas and also separated from the branch while effectively protecting the eyes of the operator, the welding work is very easy and there is an effect of doubling the work efficiency.

Claims (1)

A cover 11 is formed at the bottom of a conventional helmet body 10 having a viewing window 20 on the front surface, and the suction and blower motor 51 and the water tank 52 communicate with the blower pipe 53 and the discharge pipe on one side. And a structure in which the helmet body 10 and the suction and blower motor 51 are coupled to each other by a spring tube 40, and the helmet body 10 includes a series of suction and discharge devices 50 having 54. The external suction pipe 30 and the inner inner passage 31 of the structure configured to communicate with each other and the spring pipe 40, and the forward and reverse drive reduction motor (27) electrically connected with the optical sensor 21 ) Is mounted on one side of the helmet body 10 and the rear of the viewing window 20 constitutes a light shielding glass 22 having rollers 23 mounted on the left and right upper and lower ends, so that the rollers 23 are driven by being inserted into the guide rails 24. The light shielding glass 22 is to be vertically sliding operation, but the light shielding glass 22 has a pinion 25 mounted vertically on one side thereof. A welding helmet having an automobile light welding surface and a noxious gas exhaust structure, characterized in that the structure is engaged with the rack 26 of the deceleration motor 27.

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