CN113633464A

CN113633464A - Safe type welding protective face mask

Info

Publication number: CN113633464A
Application number: CN202110917388.1A
Authority: CN
Inventors: 周强; 王志赟; 杨威; 杨剑
Original assignee: Jiangsu Yinaida Technology Co ltd
Current assignee: Jiangsu Yinaida Technology Co ltd
Priority date: 2021-08-11
Filing date: 2021-08-11
Publication date: 2021-11-12
Anticipated expiration: 2041-08-11
Also published as: CN113633464B

Abstract

The invention relates to a safety welding protective mask, and belongs to the technical field of masks. The technical problem of the invention is that: provides a safe welding protective mask with an automatic shielding filter lens. The technical implementation scheme of the invention is as follows: a safety welding protective mask comprises a mask body, a hollow frame, a protective shell, a welding gun, a welding switch and the like; the upper side of the left part of the mask is embedded with a hollow frame, the right part of the mask is provided with a protective shell, a welding switch is arranged at a grab handle of a welding gun, the left part of the mask is provided with a vision protection mechanism, and a circuit is arranged between the welding switch and the vision protection mechanism. According to the vision protection mechanism, when the welding switch is pressed, the welding switch is used for shielding the hollow frame from the vision protection mechanism, so that strong light generated during electric welding is prevented from directly irradiating eyes to damage retinas; the safety protection mechanism is used for buffering the high-altitude falling object and bouncing the high-altitude falling object open.

Description

Safe type welding protective face mask

Technical Field

The invention relates to a safety welding protective mask, and belongs to the technical field of masks.

Background

Before welding by using carbon dioxide arc welding, a welding part needs to be checked, a filter lens of a welding cap needs to be used for shielding eyes during welding, the welding cap shields the face to prevent skin peeling caused by scalding the face skin by high temperature, a dark filter lens of the welding cap can observe the condition during welding, the welding cap is not easy to be taken back and forth for shielding during welding in a small space, the filter lens of a common helmet welding cap is of a flip type, the filter lens needs to be manually turned over up and down during welding to shield the eyes, the mode of turning over the filter lens is troublesome, the filter lens is not suitable for the back and forth movement of an arm in a narrow space, the color change of the filter lens is controlled by strong light generated during welding of a photoreceptor, and the color change of the filter lens is controlled by the strong light generated during welding due to the high propagation speed of light, or strong light can be irradiated to the eyes of the user, causing damage to the eyes of the user.

When narrow and small space welding, especially narrow and small space welding pipeline, because the pipeline exposes in the air for a long time, the outer wall of pipeline can produce a large amount of rusts, when welding the pipeline, because the pipeline vibrations that human body or other factors arouse, iron rust piece or foreign matter on the pipeline drop easily, if do not protect welding personnel, the object that drops can bring danger for welder, and produced vibrations can make narrow and small air dust fly upward in addition, and narrow and small space air circulation is relatively poor, ordinary cap that welds under this kind of environment is not suitable for the use.

Aiming at the existing problems, a safe welding protective mask with an automatic shielding filter lens is developed.

Disclosure of Invention

In order to overcome the defects that in a narrow space, the arm is not suitable to move back and forth to turn over a filter lens on a common helmet welding cap to shield eyes, and the pipeline vibration caused by human bodies or other factors causes that rust blocks or foreign matters on the arm fall off to bring danger, meanwhile, the vibration of the pipeline can fly dust in narrow air, the air circulation in the narrow space is poor, and the common helmet welding cap is not suitable for use in the environment, the technical problem of the invention is that: provides a safe welding protective mask with an automatic shielding filter lens.

The technical implementation scheme of the invention is as follows: a safety welding protective mask comprises a mask body, a hollow frame, a protective shell, a welding gun, a welding switch, a vision protection mechanism and a safety protection mechanism, wherein the hollow frame is embedded on the upper side of the left part of the mask body; visual protection mechanism includes welding switch, fixed frame, the opening, the arc slide rail, the arc slider, the filter lens piece, servo motor, gear and tooth, the left part of face guard is provided with fixed frame, it has the opening to open in the middle of the left part of fixed frame, the arc slide rail is all installed to fixed frame inner left wall both sides, the gliding style is equipped with the arc slider on the arc slide rail, install the filter lens piece between the arc slider of both sides, arc slider's right wall mid-mounting has servo motor, servo motor's output shaft is provided with the gear, the right wall both sides of filter lens piece all are provided with a plurality of teeth, the tooth of both sides respectively with the gear engagement of both sides.

In a preferred embodiment of the present invention, the color of the filter lens gradually changes from transparent to black from top to bottom.

In a preferred embodiment of the invention, the safety protection mechanism comprises a semicircular shell, a buffer shell, mounting blocks, telescopic rods, connecting blocks, lead screws, arc-shaped clamping plates, a first belt wheel, a speed reducing motor, a second belt wheel and a belt, wherein the semicircular shell is arranged at the top of the protection shell, the buffer shell is arranged in the semicircular shell, four mounting blocks are arranged at the lower side in the buffer shell, the telescopic rods are arranged at the bottoms of the mounting blocks, the connecting blocks are arranged at the lower ends of the telescopic rods, the lead screws are rotatably arranged between two adjacent connecting blocks, the arc-shaped clamping plates are fixedly connected between the front connecting block and the rear connecting block on the left side, the lead screws on two sides penetrate through the arc-shaped clamping plate on the left side, the arc-shaped clamping plates are arranged on the right sides of the lead screws on two sides through threads, the first belt wheel is arranged at the left part of the lead screw, the speed reducing motors are arranged on two sides of the top of the arc-shaped clamping plate on the left side, and the second belt wheel is arranged on output shafts of the speed reducing motors, and a belt is wound between the second belt wheel and the first belt wheel which are adjacent up and down.

In a preferred embodiment of the present invention, a plurality of sets of buffer members are fixedly connected between the semicircular shell and the buffer shell.

In a preferred embodiment of the invention, the gas filtering device comprises two mounting frames, two cover plates, a gas inlet frame, a gas outlet frame, two arc-shaped sleeves, two annular plates, a containing shell, a gas inlet pipe, a gas outlet pipe and a first exhaust fan, wherein the two mounting frames are respectively connected to the front side and the rear side of the protective shell, the gas inlet frame is embedded in the left part of each mounting frame, the gas outlet frame is embedded in the right side of the upper part of each mounting frame, the two cover plates are arranged, the arc-shaped sleeves are arranged in the middle parts of the two cover plates, the arc-shaped sleeves are also arranged in the middle parts of the inner walls of the mounting frames, the two adjacent arc-shaped sleeves are in sliding fit, the containing shell is arranged between the two adjacent arc-shaped sleeves, the annular plate is arranged on the upper part of the containing shell, the annular plate is positioned on the upper sides of the arc-shaped sleeves, the gas inlet pipe and the gas outlet pipe are arranged at the top of the containing shell, the gas inlet pipe is communicated with the gas inlet frame, the gas outlet pipe is communicated with the gas outlet frame, the inner wall of the air inlet frame is provided with a first exhaust fan.

In a preferred embodiment of the invention, the inlet of the air inlet frame and the outlet of the air outlet frame are provided with filter screens.

In a preferred embodiment of the invention, the mask further comprises an air circulation mechanism, the air circulation mechanism comprises a mounting plate, a circulation pipeline, a hollow circulation frame, a fixing plate, an air circulation shell, through holes, a hollow block, a second exhaust fan and a flexible hose, the two mounting plates are arranged on the lower portions of the front side and the rear side of the protection shell, the circulation pipeline is embedded in the middle of the mounting plate, the hollow circulation frame is arranged on the left portion of the circulation pipeline, the hollow circulation frame penetrates through the protection shell, the fixing plate is arranged on the lower portion of the right wall of the mask, the air circulation shell is arranged on the right wall of the fixing plate in a sliding mode, the air circulation shell is made of rubber, the two through holes are formed in the front side and the rear side of the air circulation shell, the hollow block is arranged on the outer side of the through holes in the front side and the rear side of the protection shell, the second exhaust fan is arranged on the inner wall of the hollow block, and the flexible hose is arranged between the adjacent hollow block and the hollow circulation frame.

In a preferred embodiment of the present invention, a detachable filter net is disposed at the right part of the circulation pipeline, and the circulation pipeline is filled with filter cotton.

In a preferred embodiment of the invention, the protective shell further comprises a clamping mechanism, the clamping mechanism comprises a first slide rail, first slide blocks, a reset spring, a vertical plate, clamping grooves, rotating rods, ratchets, connecting frames and clamping frames, the first slide rail is mounted on the upper portions of the front side and the rear side of the protective shell, the first slide block is arranged in the first slide rail in a sliding mode, the reset spring is fixedly connected between the adjacent first slide block and the first slide rail, the vertical plate is fixedly connected to the top of the first slide block, the clamping grooves are formed in the upper portion of the side wall of the vertical plate, the rotating rods are rotatably mounted on the front side and the rear side of the protective shell, the rotating rods are located on the upper side of the first slide rail, the ratchets are mounted on the outer sides of the rotating rods on the two sides, the adjacent ratchets are matched with the clamping grooves, the connecting frames are mounted at the inner ends of the rotating rods on the two sides, the clamping frames are arranged between the connecting frames on the two sides, and the clamping frames are located in the protective shell.

Compared with the prior art, the invention has the following advantages: according to the vision protection mechanism, when the welding switch is pressed, the welding switch is used for shielding the hollow frame from the vision protection mechanism, so that strong light generated during electric welding is prevented from directly irradiating eyes to damage retinas; buffering the high-altitude falling object by using a safety protection mechanism, and bouncing the high-altitude falling object open; the gas filtering mechanism is used for absorbing and filtering the smoke generated during electric welding, so that the smoke is prevented from being absorbed into the human body and causing damage to the human body; the air circulation mechanism is used for circulating the air in the equipment, so that the oxygen supply shortage is avoided, and the electric welding is prevented from being hindered; the clamping mechanism is utilized to enable the equipment to be tightly attached to the head, so that shaking caused by head lowering or head raising is avoided, and inconvenience is brought to use.

Drawings

Fig. 1 is a schematic perspective view of a first embodiment of the present invention.

Fig. 2 is a schematic perspective view of a second embodiment of the present invention.

Fig. 3 is a partial perspective view of the present invention.

Fig. 4 is a schematic sectional perspective view of the vision protection mechanism of the present invention.

Fig. 5 is a schematic perspective view of the safety protection mechanism of the present invention.

Fig. 6 is a schematic partial perspective view of a first safety protection mechanism according to the present invention.

Fig. 7 is a schematic partial perspective view of a second safety shield mechanism according to the present invention.

Fig. 8 is a schematic partial perspective view of a first gas filtering mechanism according to the present invention.

Fig. 9 is a second partial perspective view of the gas filter mechanism of the present invention.

FIG. 10 is a schematic view of a third partial perspective view of the gas filter mechanism of the present invention.

Fig. 11 is a schematic perspective view of the air circulation mechanism of the present invention.

Fig. 12 is a partial perspective view of the air circulation mechanism of the present invention.

Fig. 13 is a perspective view of the clamping mechanism of the present invention.

Fig. 14 is a partial perspective view of the clamping mechanism of the present invention.

Wherein the figures include the following reference numerals: 1. mask, 2, hollow frame, 3, protective shell, 31, welding gun, 32, welding switch, 4, vision protection mechanism, 403, fixing frame, 404, opening, 405, arc slide rail, 406, arc slide block, 407, filter lens, 408, servo motor, 409, gear, 410, tooth, 5, safety protection mechanism, 501, semicircular shell, 502, buffer shell, 503, mounting block, 504, telescopic rod, 505, connecting block, 506, lead screw, 507, arc clamping plate, 508, first belt wheel, 509, reduction motor, 510, second belt wheel, 511, belt, 6, gas filtering mechanism, 601, mounting frame, 602, cover plate, 603, gas inlet frame, 604, gas outlet frame, 605, arc sleeve, 606, annular plate, 607, housing shell, 608, gas inlet pipe, 609, gas outlet pipe, 610, first exhaust fan, 7, air circulation mechanism, 701, mounting plate, 702, circulation pipeline, 703. the device comprises a hollow circulating frame, 704, a fixing plate, 705, an air circulating shell, 706, a through hole, 707, a hollow block, 708, a second exhaust fan, 709, a telescopic hose, 8, a clamping mechanism, 801, a first sliding rail, 802, a first sliding block, 803, a return spring, 804, a vertical plate, 805, a clamping groove, 806, a rotating rod, 807, a ratchet wheel, 808, a connecting frame, 809 and a clamping frame.

Detailed Description

It is to be noted that, in the case of the different described embodiments, identical components are provided with the same reference numerals or the same component names, wherein the disclosure contained in the entire description can be transferred to identical components having the same reference numerals or the same component names in a meaningful manner. The positional references selected in the description, such as upper, lower, lateral, etc., refer also to the directly described and illustrated figures and are to be read into the new position in the sense of a change in position.

Example 1

A safety type welding protection mask is shown in figures 1-4 and comprises a mask 1, a hollow frame 2, a protection shell 3, a welding gun 31, a welding switch 32, a vision protection mechanism 4 and a safety protection mechanism 5, wherein the hollow frame 2 is embedded on the upper side of the left portion of the mask 1, the protection shell 3 is arranged on the right wall of the mask 1, the welding switch 32 is arranged at a holding handle of the welding gun 31, the vision protection mechanism 4 is arranged on the left portion of the mask 1, a circuit is arranged between the welding switch 32 and the vision protection mechanism 4, and the safety protection mechanism 5 is arranged on the upper portion of the protection shell 3.

When welding is carried out by using carbon dioxide arc welding, firstly, a user wears the equipment on the head and holds the welding gun 31, the user presses the welding switch 32 during welding, the carbon dioxide arc welding wire in the welding gun 31 moves outwards to feed the wire, meanwhile, the welding switch 32 controls the vision protection mechanism 4 to work, the vision protection mechanism 4 works to shield the hollow frame 2, a certain distance is reserved at the welding position at the moment, then, the user holds the welding gun 31 to weld the position to be welded by the carbon dioxide arc welding wire, the strong light generated during welding is shielded by the vision protection mechanism 4, so that the strong light is prevented from directly irradiating the eyes of the user, the retina is prevented from being damaged, objects falling from the high altitude are prevented by the safety protection mechanism 5 to hit the head of the user, or the head is collided when the user carries out welding work in a narrow space, the use safety of the user is improved, and after the welding is finished, the user loosens the welding switch 32, and the welding switch 32 controls the visual protection mechanism 4 to reset.

Example 2

On the basis of embodiment 1, as shown in fig. 1, 2 and 4, the vision protection mechanism 4 includes a welding switch 32, a fixing frame 403, an opening 404, an arc-shaped slide rail 405, the mask comprises an arc-shaped sliding block 406, a filter lens 407, a servo motor 408, a gear 409 and teeth 410, wherein a fixing frame 403 is arranged at the left part of the mask 1, an opening 404 is formed in the middle of the left part of the fixing frame 403, arc-shaped sliding rails 405 are arranged on the front side and the rear side of the left wall in the fixing frame 403, the arc-shaped sliding rails 405 are slidably provided with the arc-shaped sliding block 406, the filter lens 407 is arranged between the arc-shaped sliding blocks 406 on the front side and the rear side, the color of the filter lens 407 gradually changes from transparent color to black color from top to bottom, the servo motor 408 is arranged in the middle of the right wall of the arc-shaped sliding block 406, the output shaft of the servo motor 408 is provided with the gear 409, a plurality of teeth 410 are arranged on the front side and the rear side of the right wall of the filter lens 407, and the teeth 410 on the front side and the rear side are respectively meshed with the gears 409 on the front side and the rear side.

Initially, the transparent part of the filter lens 407 coincides with the hollow frame 2, after the welding switch 32 is pressed, the carbon dioxide gas shielded welding wire in the welding gun 31 moves outwards to feed wire, and at the same time, the welding switch 32 controls the servo motor 408 to make the gear 409 rotate anticlockwise, the gear 409 rotates anticlockwise to be matched with the teeth 410, so that the filter lens 407 slides upwards, as the color of the filter lens 407 gradually changes from transparent to black from top to bottom, the ink color part of the filter lens 407 coincides with the hollow frame 2, and the servo motor 408 is turned off, at this time, the user holds the welding gun 31 to weld through the carbon dioxide gas shielded welding wire, the bright light generated during electric welding is shielded through the ink color part of the filter lens 407, thereby preventing the bright light from directly irradiating the eyes of the user and causing damage to the retina, when the filter lens 407 needs to slide downwards, the user releases the welding switch 32 to stop welding work, the welding switch 32 starts the servo motor 408 again to rotate the gear 409 clockwise, so that the filter lens 407 slides downwards to reset, and after the filter lens 407 slides downwards to reset, the servo motor 408 is closed, so that the welding position can be conveniently observed.

As shown in fig. 1, 5, 6 and 7, the safety protection mechanism 5 includes a semicircular housing 501, a buffer housing 502, a mounting block 503, a telescopic rod 504, a connecting block 505, a lead screw 506, an arc-shaped clamping plate 507, a first pulley 508, a reduction motor 509, a second pulley 510 and a belt 511, the semicircular housing 501 is mounted on the top of the protection housing 3, the buffer housing 502 is disposed in the semicircular housing 501, a plurality of sets of buffer springs are fixedly connected between the semicircular housing 501 and the buffer housing 502, two mounting blocks 503 are mounted on the front and rear sides of the lower side inside the buffer housing 502, the telescopic rod 504 is disposed at the bottom of the mounting block 503, the connecting block 505 is mounted at the lower end of the telescopic rod 504, the lead screw 506 is rotatably mounted between the two adjacent left and right connecting blocks 505, the arc-shaped clamping plate 507 is fixedly connected between the two left front and rear connecting blocks 505, the lead screws 506 on the front and rear sides pass through the left arc-shaped clamping plate 507, the right sides of the screw rods 506 on the front side and the rear side are also provided with arc-shaped clamping plates 507 through threads, the left parts of the screw rods 506 are provided with first belt wheels 508, the front side and the rear side of the tops of the arc-shaped clamping plates 507 on the left side are provided with speed reducing motors 509, output shafts of the speed reducing motors 509 are provided with second belt wheels 510, and belts 511 are wound between the upper and lower adjacent second belt wheels 510 and the first belt wheels 508.

The user wears this equipment when overhead, cooperation through telescopic link 504, make the arc splint 507 cover of the left and right sides at user's head, and user's head is located between the arc splint 507 of the left and right sides this moment, the user starts gear motor 509 afterwards and makes second band pulley 510 anticlockwise rotate, second band pulley 510 anticlockwise rotates makes first band pulley 508 anticlockwise rotate through belt 511, first band pulley 508 anticlockwise rotates makes lead screw 506 anticlockwise rotate, lead screw 506 anticlockwise rotates makes the arc splint 507 on right side remove left, the arc splint 507 cooperation through the left and right sides, inject this equipment at user's head, close gear motor 509 this moment. The semicircular shell 501 is matched with the buffer shell 502, so that the head of a user is prevented from being hurt by falling objects, and the head of the user is prevented from being injured; after the use is finished, the user rotates the second pulley 510 clockwise through the speed reducing motor 509, the screw 506 rotates clockwise along with the second pulley to move the right arc-shaped clamping plate 507 rightwards, and after the arc-shaped clamping plate 507 moves rightwards and is reset, the speed reducing motor 509 is turned off by the user, so that the next use is facilitated.

Example 3

On the basis of embodiment 2, as shown in fig. 2, 8, 9 and 10, the gas filter device 6 further comprises a gas filter mechanism 6, the gas filter mechanism 6 comprises two mounting frames 601, a cover plate 602, a gas inlet frame 603, a gas outlet frame 604, an arc-shaped sleeve 605, an annular plate 606, a containing shell 607, a gas inlet pipe 608, a gas outlet pipe 609 and a first exhaust fan 610, the two mounting frames 601 are respectively connected to the front and rear sides of the protective shell 3, the gas inlet frame 603 is embedded in the left part of the mounting frame 601, the gas outlet frame 604 is embedded in the right part of the upper part of the mounting frame 601, filter screens are respectively arranged at the inlet of the gas inlet frame 603 and the outlet of the gas outlet frame 604, the two cover plates 602 are arranged, the arc-shaped sleeves 605 are respectively arranged in the middle parts of the inner sides of the two cover plates 602, the arc-shaped sleeve 605 is also arranged in the middle part of the inner wall of the mounting frame 601, the two adjacent arc-shaped sleeves 605 are in the front and the rear part and are in sliding fit, the containing shell 607 is arranged between the two adjacent arc-shaped sleeves 605, the upper portion of holding casing 607 is provided with annular plate 606, and annular plate 606 is located the upside of arc cover 605, and the top of holding casing 607 is provided with intake pipe 608 and outlet duct 609, and upper and lower adjacent intake pipe 608 and air inlet frame 603 communicate, and upper and lower adjacent outlet duct 609 communicates with air outlet frame 604, and the inner wall left portion of air inlet frame 603 is provided with first air exhauster 610.

After the device is worn on the head, a user starts the first exhaust fan 610 to work, the first exhaust fan 610 works to suck smoke generated during electric welding into the air inlet frame 603, the smoke in the air inlet frame 603 flows into the containing shell 607 through the air inlet pipe 608, and is mixed with the medicament in the containing shell 607 through the smoke, toxic gas in the smoke is filtered, the non-toxic gas flows into the gas outlet frame 604 through the gas outlet pipe 609, the gas in the gas outlet frame 604 flows out, after the electric welding is finished, the user moves the cover plates 602 at the front and rear sides upwards, so that the arc-shaped sleeve 605 at the outer side moves upwards and is away from the arc-shaped sleeve 605 at the inner side, and then the user takes out the containing shell 607, replaces the medicament in the containing shell, when the replacement of the medicine in the housing 607 is completed, the user resets the housing 607, and the cover plate 602 is reset to seal the mounting frame 601, so that the next use is facilitated.

As shown in fig. 2, 11 and 12, the air circulation device 7 further comprises an air circulation mechanism 7, the air circulation mechanism 7 comprises a mounting plate 701, a circulation pipeline 702, a hollow circulation frame 703, a fixing plate 704, an air circulation shell 705, a through hole 706, a hollow block 707, a second exhaust fan 708 and a flexible hose 709, the two mounting plates 701 are arranged at the lower parts of the front and rear sides of the protective shell 3, the circulation pipeline 702 is embedded in the middle of the mounting plate 701, a detachable filter screen is arranged at the right part in the circulation pipeline 702, the filter cotton is filled in the circulation pipeline 702, the hollow circulation frame 703 is arranged at the left part of the circulation pipeline 702, the hollow circulation frame 703 passes through the protective shell 3, the fixing plate 704 is arranged at the lower part of the right wall of the face mask 1, the air circulation shell 705 is slidably arranged on the right wall of the fixing plate 704, the air circulation shell 705 is made of rubber, the two through holes 706 are arranged at the front and rear sides of the air circulation shell 705, the hollow block 707 is arranged outside the through hole 706 at the front and rear sides, a second exhaust fan 708 is arranged on the inner wall of the hollow block 707, and a telescopic hose 709 is arranged between the hollow block 707 and the hollow circulating frame 703 which are adjacent in the front-back direction.

After the device is worn on the head, a user starts the second exhaust fans 708 on the front side and the rear side to work, the second exhaust fan 708 on the rear side works to suck outside air into the air circulation shell 705 through the circulation pipeline 702 on the rear side, the hollow circulation frame 703 on the rear side, the telescopic hose 709 on the rear side, the hollow block 707 on the rear side and the through hole 706 on the rear side, and the air circulation shell 705 is arranged on the fixing plate 704 in a sliding manner, so that the device is convenient for different people to use, the second exhaust fan 708 on the front side works to suck out air exhaled by the user in the air circulation shell 705 through the through hole 706 on the rear side, the hollow block 707 on the rear side, the telescopic hose 709 on the rear side, the hollow circulation frame 703 on the rear side and the circulation pipeline 702 on the rear side, so that air circulation is realized, oxygen supply for the user is guaranteed, meanwhile, the device can be cooled, and the circulation pipeline 702 on the rear side is filled with filter cotton, the air of suction rear side circulating line 702 is filtered through the filter pulp, avoids the dust to inhale internally, and after the use was accomplished, the user pulled down the circulating line 702 filter screen to filter pulp to change in it, after the filter pulp was changed and is accomplished, the user reset the filter screen can, convenient next use.

As shown in fig. 2, 13 and 14, the protective casing further comprises a clamping mechanism 8, the clamping mechanism 8 comprises a first slide rail 801, a first slider 802, a return spring 803, a vertical plate 804, a clamping groove 805, a rotating rod 806, a ratchet 807, a connecting frame 808 and a clamping frame 809, the first slide rail 801 is mounted in the middle of the front side and the rear side of the protective casing 3, the first slider 802 is slidably mounted in the first slide rail 801, the return spring 803 is fixedly connected between the left and right adjacent first sliders 802 and the first slide rail 801, the vertical plate 804 is fixedly connected to the top of the first slider 802, the clamping groove 805 is formed in the upper portion of the right wall of the vertical plate 804, the rotating rods 806 are rotatably mounted on the front side and the rear side of the protective casing 3, the rotating rod 806 is located on the upper side of the first slide rail 801, the ratchet 807 is mounted on the outer side of the rotating rods 806 on the front side and the rear side, the ratchet 807 and the clamping groove 805 adjacent on the left and the right side are matched, the connecting frame 808 is mounted at the inner ends of the rotating rods 806 on the front side and the rear side, the connecting frame 809 is disposed between the connecting frame 808, the clamping frame 809 is located inside the protective housing 3.

After the equipment is worn on the head, a user rotates the rotating rod 806 clockwise, the rotating rod 806 clockwise rotates to enable the ratchet 807 to clockwise rotate, the ratchet 807 is clamped through the matching of the ratchet 807 and the clamping groove 805, the rotating rod 806 anticlockwise rotates to reset, the rotating rod 806 clockwise rotates to enable the connecting frame 808 clockwise, the connecting frame 808 clockwise rotates to enable the clamping frame 809 to clockwise rotate, the clamping frame 809 clockwise rotates to be attached to the head of the user, the equipment is limited on the head of the user, inconvenience caused by head lowering or head raising of the user is avoided, when the equipment is not used, the user enables the vertical plate 804 to move forwards, the reset spring 803 is stretched along with the vertical plate, the clamping groove 805 is far away from the ratchet 807, the limit on the ratchet 807 is relieved, then the user rotates the clamping frame 809 reversely through the rotating rod 806, then the user takes off the equipment, and releases the vertical plate 804, the clamping groove 805 is clamped on the ratchet 807 under the action of the return spring 803, so that the ratchet 807 is limited, and the next use is facilitated.

While the disclosure has been described with respect to a limited number of embodiments, those skilled in the art, having benefit of this disclosure, will appreciate that various other embodiments can be devised which do not depart from the scope of the invention as disclosed herein. Accordingly, the scope of the invention should be limited only by the attached claims.

Claims

1. A safety welding protective mask is characterized by comprising a mask (1), a hollow frame (2), a protective shell (3), a welding gun (31), a welding switch (32), a vision protection mechanism (4) and a safety protection mechanism (5), wherein the hollow frame (2) is embedded on the upper side of the left part of the mask (1), the protective shell (3) is arranged on the right part of the mask (1), the welding switch (32) is arranged at a handle of the welding gun (31), the vision protection mechanism (4) is arranged on the left part of the mask (1), a circuit is arranged between the welding switch (32) and the vision protection mechanism (4), and the safety protection mechanism (5) is arranged on the upper part of the protective shell (3);

the visual protection mechanism (4) comprises a welding switch (32), a fixed frame (403), an opening (404), an arc-shaped sliding rail (405), an arc-shaped sliding block (406), a filter lens (407), a servo motor (408), a gear (409) and teeth (410), the left part of face guard (1) is provided with fixed frame (403), open in the middle of the left part of fixed frame (403) has opening (404), arc slide rail (405) are all installed to left wall both sides in fixed frame (403), arc slide rail (405) go up the slip and are equipped with arc slider (406), install filter lens (407) between the arc slider (406) of both sides, the right wall mid-mounting of arc slider (406) has servo motor (408), the output shaft of servo motor (408) is provided with gear (409), the right wall both sides of filter lens (407) all are provided with a plurality of teeth (410), the tooth (410) of both sides mesh with the gear (409) of both sides respectively.

2. A safety welding helmet according to claim 1, characterized in that the filter lens (407) is of a color that gradually turns from transparent to black from top to bottom.

3. The safety type welding protective mask according to claim 1, wherein the safety protection mechanism (5) comprises a semicircular shell (501), a buffer shell (502), mounting blocks (503), an expansion link (504), a connecting block (505), a lead screw (506), an arc-shaped clamping plate (507), a first belt wheel (508), a speed reduction motor (509), a second belt wheel (510) and a belt (511), the semicircular shell (501) is mounted at the top of the protective shell (3), the buffer shell (502) is arranged in the semicircular shell (501), four mounting blocks (503) are mounted at the lower side in the buffer shell (502), the expansion link (504) is arranged at the bottom of each mounting block (503), the connecting block (505) is mounted at the lower end of each expansion link (504), the lead screw (506) is rotatably mounted between two adjacent connecting blocks (505), the arc-shaped clamping plate (507) is fixedly connected between the front and rear connecting blocks (505) on the left side, the lead screw (506) of both sides all passes left arc splint (507), the lead screw (506) right side of both sides also is provided with arc splint (507) through the screw thread, the left part of lead screw (506) is provided with first band pulley (508), gear motor (509) are all installed to left arc splint (507) top both sides, second band pulley (510) are installed to the output shaft of gear motor (509), around having belt (511) between second band pulley (510) and the first band pulley (508) that are adjacent from top to bottom.

4. A safety welding helmet according to claim 3, wherein a plurality of cushioning members are secured between the semi-circular shell (501) and the cushioning shell (502).

5. The safety welding protective mask according to claim 3, characterized by further comprising a gas filtering mechanism (6), wherein the gas filtering mechanism (6) comprises two mounting frames (601), two cover plates (602), an air inlet frame (603), an air outlet frame (604), arc-shaped sleeves (605), an annular plate (606), a containing shell (607), an air inlet pipe (608), an air outlet pipe (609) and a first exhaust fan (610), the two mounting frames (601) are respectively connected to the front side and the rear side of the protective shell (3), the air inlet frame (603) is embedded in the left portion of the mounting frame (601), the air outlet frame (604) is embedded in the right portion of the upper portion of the mounting frame (601), the two cover plates (602) are arranged, the arc-shaped sleeves (605) are arranged in the middle portions of the two cover plates (602), the arc-shaped sleeves (605) are also arranged in the middle portions of the inner walls of the mounting frames (601), and the two adjacent arc-shaped sleeves (605) are in sliding fit with each other, be provided with between two adjacent arc cover (605) and hold casing (607), the upper portion that holds casing (607) is provided with annular plate (606), annular plate (606) are located the upside of arc cover (605), the top that holds casing (607) is provided with intake pipe (608) and outlet duct (609), intake pipe (608) and air inlet frame (603) intercommunication, outlet duct (609) and air outlet frame (604) intercommunication, the inner wall of air inlet frame (603) is provided with first air exhauster (610).

6. A safety welding helmet according to claim 5, characterized in that the inlet of the inlet frame (603) and the outlet of the outlet frame (604) are provided with a filter mesh.

7. The safety welding protective mask according to claim 5, further comprising an air circulation mechanism (7), wherein the air circulation mechanism (7) comprises a mounting plate (701), a circulation pipeline (702), a hollow circulation frame (703), a fixing plate (704), an air circulation shell (705), a through hole (706), a hollow block (707), a second exhaust fan (708) and a flexible hose (709), two mounting plates (701) are arranged on the lower portions of the front side and the rear side of the protective shell (3), the circulation pipeline (702) is embedded in the middle of the mounting plate (701), the hollow circulation frame (703) is arranged on the left portion of the circulation pipeline (702), the hollow circulation frame (703) penetrates through the protective shell (3), the fixing plate (704) is arranged on the lower portion of the right wall of the mask (1), the air circulation shell (705) is arranged on the right wall of the fixing plate (704) in a sliding manner, and the air circulation shell (705) is made of rubber, two through holes (706) are formed in the front side and the rear side of the air circulation shell (705), a hollow block (707) is installed on the air circulation shell (705) outside the through holes (706) in the front side and the rear side, a second exhaust fan (708) is arranged on the inner wall of the hollow block (707), and a telescopic hose (709) is arranged between the adjacent hollow block (707) and the hollow circulation frame (703).

8. A safety welding helmet according to claim 7, characterized in that the circulation line (702) is provided with a detachable filter mesh on the right, and the circulation line (702) is filled with filter cotton.

9. The safety welding protective mask according to claim 7, further comprising a clamping mechanism (8), wherein the clamping mechanism (8) comprises a first sliding rail (801), a first sliding block (802), a return spring (803), a vertical plate (804), a clamping groove (805), a rotating rod (806), a ratchet wheel (807), a connecting frame (808) and a clamping frame (809), the first sliding rail (801) is mounted on the upper portions of the front side and the rear side of the protective shell (3), the first sliding block (802) is arranged in the first sliding rail (801) in a sliding manner, the return spring (803) is fixedly connected between the adjacent first sliding block (802) and the first sliding rail (801), the vertical plate (804) is fixedly connected to the top of the first sliding block (802), the clamping groove (805) is formed in the upper portion of the side wall of the vertical plate (804), the rotating rod (806) is rotatably mounted on the front side and the rear side of the protective shell (3), and the rotating rod (806) is located on the upper side of the first sliding rail (801), ratchets (807) are installed on the outer sides of the rotating rods (806) on the two sides, the adjacent ratchets (807) are matched with the clamping grooves (805), connecting frames (808) are installed at the inner ends of the rotating rods (806) on the two sides, clamping frames (809) are arranged between the connecting frames (808) on the two sides, and the clamping frames (809) are located in the protective shell (3).