CN110916898B - Be used for welded safety protective equipment - Google Patents
Be used for welded safety protective equipment Download PDFInfo
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- CN110916898B CN110916898B CN201911067099.6A CN201911067099A CN110916898B CN 110916898 B CN110916898 B CN 110916898B CN 201911067099 A CN201911067099 A CN 201911067099A CN 110916898 B CN110916898 B CN 110916898B
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- air inlet
- welding
- fixed
- shield
- positioning
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
- A61F9/04—Eye-masks ; Devices to be worn on the face, not intended for looking through; Eye-pads for sunbathing
- A61F9/06—Masks, shields or hoods for welders
- A61F9/068—Masks, shields or hoods for welders with supply or suction of gas, air or smoke inside or outside the welding hood
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/006—Safety devices
Abstract
The invention provides a safety protector for welding, which relates to the technical field of welding protection equipment and comprises the following components: a shield, a shielding structure, a binding band, an air inlet structure, a protective structure and a telescopic shielding structure, wherein the air inlet structure is arranged at the bottom side of the shield, the protective structure is arranged at the front end under the protective cover, the front end of the top of the protective cover is provided with a shielding structure, during welding, under the action of a fan, air filtered by the filter screen is discharged into the air inlet cylinder and irradiated by the UV lamp tube, the waste gas is decomposed and purified, and then is absorbed and filtered by the active carbon mesh plate, so that the air in the protective cover is ensured to be pollution-free, toxic gas generated by welding is prevented from being inhaled, the health of operators is ensured, by the protective structure, the toughened glass is placed at the outer side of the welding spot, so that the electric spark can be prevented from bursting out, the damage to operators is reduced, the fixing of sunglasses can be realized through setting up the shielding structure, long service life, the problem of smooth silk can not take place.
Description
Technical Field
The invention relates to the technical field of welding protection equipment, in particular to a safety protector for welding.
Background
The welding process is related to the welding method and other factors, the operation needs to be determined according to the material, the brand and the chemical composition of the workpiece to be welded, the structural type of the workpiece to be welded and the welding performance requirement, firstly, the welding method needs to be determined, such as manual arc welding, submerged arc welding, tungsten electrode argon arc welding, gas metal arc welding and the like, the types of the welding method are very many, and the welding method can only be selected according to specific conditions;
during welding operation, a large amount of electric sparks and spark splash can be generated, operators are easily scalded, and welding personnel are injured; when welding, because the welding rod melts, can produce a large amount of toxic gas, operating personnel is long-time in this kind of environment operation, easily causes the damage to mind and body, and to above affirmation, it is necessary to design a safety protective equipment for welding.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a safety protector for welding, which solves the technical problem of protecting a human body during welding.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme:
a safety guard for welding, comprising: the shielding structure is arranged at the front end under the shielding cover, the shielding structure is arranged at the front end of the top of the shielding cover, the binding belt is fixedly adhered to the rear side of the shielding cover, and the telescopic shielding structure is arranged at the bottom side of the shielding cover;
protective structure includes toughened glass, gooseneck, flexible pipe, first positioning bolt, accomodates pipe, rotatory bolt and connection support, connection support passes through welded fastening at the end of the guard shield side middle part, the one end of accomodating the pipe is pegged graft through rotatory bolt cooperation and is installed inside connecting the support, flexible pipe cooperation is pegged graft and is installed in the bottom of accomodating the pipe, first positioning bolt runs through the screw-thread fit and installs the bottom port department of accomodating the pipe, the bottom tip at flexible pipe is fixed on the top of gooseneck, toughened glass glues glutinous the bottom tip of fixing at the gooseneck.
The inlet structure includes an air inlet cylinder, an active carbon screen plate, a UV lamp tube, a photocatalyst net, a fan and a filter screen, the bottom end face department at the air inlet cylinder is fixed in the filter screen embedding, the bottom end portion at the air inlet cylinder is installed to the fan rigid coupling, be fixed with two between the inner chamber middle part both sides wall of the air inlet cylinder the photocatalyst net, be fixed with three side by side between the inner chamber middle part both sides wall of the air inlet cylinder the UV lamp tube, the top end port department at the air inlet cylinder is fixed to the active carbon screen plate.
The shielding structure comprises a fixing frame, sunglasses, a gear, a rotary rod, a positioning barrel and an extrusion spring, wherein the rotary rod is installed on the side wall of the protecting hood in a matching mode through a bearing, the gear is sleeved and fixed on the outer portion of the rotary rod, the fixing frame is fixed on the side surface of the end portion of the rotary rod, the sunglasses are adhered and fixed at the other end of the fixing frame, the positioning barrel is vertically fixed on the outer side surface of the side wall of the protecting hood, the bottom end of the positioning rod is connected in a inserting mode inside the positioning barrel, and the extrusion spring is arranged between the bottom end of the positioning rod and the wall of the inner cavity barrel of the positioning barrel.
The telescopic shielding structure comprises a second positioning bolt, a sliding block, a sliding chute, a first expansion plate, a connecting support, nylon cloth, a first shearing arm, a second shearing arm and a second expansion plate, nylon cloth is adhered between the first expansion plate and the second expansion plate through glue, sliding grooves are correspondingly formed in the two ends of the bottom side of the first expansion plate and the top side of the second expansion plate up and down, the sliding block is arranged in the sliding groove, the second positioning bolt is arranged on one side of the sliding block in a threaded fit manner, a connecting support is fixed on one side of the sliding block, the center of the first shearing force arm is fixedly connected with the center of the second shearing force arm through a pin rod in a matching way, the two ends of the first shearing force arm and the two ends of the second shearing force arm are respectively connected with the connecting supports at the four corners in a matching way through pin rods, and the bolt head of the second positioning bolt is extruded and positioned with the bottom side surface of the first expansion plate and the top side surface of the second expansion plate.
The inside of guard shield encircles and is provided with the rubber tape.
The three groups of UV lamp tubes are arranged between the two photocatalyst nets.
The top end of the positioning rod is an arc-shaped surface, and the top end surface of the positioning rod is tangent to the tooth groove surface of the gear.
The sunglasses are correspondingly arranged on the front side of the glass mirror surface in the shield.
(III) advantageous effects
The invention provides a safety protector for welding. Compared with the prior art, the method has the following beneficial effects:
1. when the welding, under the effect of fan, in will going into the section of thick bamboo that admits air through the air discharge after the filter screen filters, the air passes through the UV fluorescent tube and shines, decomposes waste gas, after decomposing and purifying, adsorbs through activated carbon mesh board and filters, guarantees the air pollution-free in the guard shield, avoids the poison gas that the welding produced to be inhaled, guarantees that operating personnel's is healthy.
2. Through protective structure, place toughened glass in the outside of solder joint, can avoid bursting out of electric spark, reduce the damage to operating personnel.
3. The fixing of sunglasses can be realized through setting up the shielding structure, long service life, the problem of smooth silk can not take place.
4. Through setting up scalable structure of sheltering from, can shelter from the area according to the random regulation of human posture, can random operation, protection that can be better.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a perspective view of a safety guard for welding according to the present invention;
fig. 2 is a schematic view of an air inlet structure in a safety shield for welding according to the present invention;
fig. 3 is a schematic view of a protective structure of a safety shield for welding according to the present invention;
FIG. 4 is a schematic view of a shielding structure in a safety shield for welding according to the present invention;
FIG. 5 is a schematic view of a retractable shield for use in a welding safety shield according to the present invention;
in the figure: 1. a shield; 2. a shielding structure; 3. binding bands; 4. an air intake structure; 5. a protective structure; 6. a retractable shielding structure; 41. an air inlet cylinder; 42. an activated carbon screen plate; 43. a UV lamp tube; 44. a photocatalyst net; 45. a fan; 46. filtering with a screen; 51. tempering the glass; 52. a gooseneck; 53. a telescopic pipe; 54. a first positioning bolt; 55. receiving a tube; 56. rotating the bolt; 57. connecting a support; 21. a fixed mount; 22. a sunglass; 23. a gear; 24. rotating the rod; 25. positioning a rod; 26. a positioning cylinder; 27. a compression spring; 61. a second positioning bolt; 62. a slider; 63. a chute; 64. a first expansion plate; 65. connecting a support; 66. nylon cloth; 67. a first shear arm; 68. a second shear arm; 69. a second expansion plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described, and it is obvious that the described embodiments are a part of the embodiments of the present invention, but not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the application provides a safety protective equipment for welding, has solved the technical problem to human protection when welding. .
In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments.
Example 1:
1-5, a safety shield for welding, comprising: the shielding structure comprises a shielding cover 1, a shielding structure 2, a binding belt 3, an air inlet structure 4, a protective structure 5 and a telescopic shielding structure 6, wherein the air inlet structure 4 is arranged at the bottom side of the shielding cover 1, the protective structure 5 is arranged at the front end under the shielding cover 1, the shielding structure 2 is arranged at the front end of the top of the shielding cover 1, the binding belt 3 is fixedly adhered to the rear side of the shielding cover 1, and the telescopic shielding structure 6 is arranged at the bottom side of the shielding cover 1;
The shielding structure 2 comprises a fixing frame 21, a sunglass 22, a gear 23, a rotating rod 24, a positioning rod 25, a positioning barrel 26 and an extrusion spring 27, the rotating rod 24 is installed on the side wall of the shield 1 through the matching of a bearing, the gear 23 is sleeved and fixed on the outer part of the rotating rod 24, the fixing frame 21 is fixed on the side surface of the end part of the rotating rod 24, the sunglass 22 is adhered and fixed at the other end of the fixing frame 21, the positioning barrel 26 is vertically fixed on the outer side surface of the side wall of the shield 1, the positioning rod 25 is inserted into the positioning barrel 26 in the matching of the bottom end, the extrusion spring 27 is arranged between the bottom end of the positioning rod 25 and the wall of the inner cavity barrel of the positioning barrel 26, and the conversion between the sunglass 22 and the glass mirror surface can be stably ensured.
The telescopic shielding structure 6 comprises a second positioning bolt 61, a sliding block 62, a sliding groove 63, a first expansion plate 64, a connecting support 65, nylon cloth 66, a first shearing force arm 67, a second shearing force arm 68 and a second expansion plate 69, the nylon cloth 66 is adhered between the first expansion plate 64 and the second expansion plate 69 through glue, the sliding grooves 63 are correspondingly formed in the two ends of the bottom side of the first expansion plate 64 and the top side of the second expansion plate 69 up and down, the sliding block 62 is arranged in the sliding groove 63, the second positioning bolt 61 is installed on one side of the sliding block 62 through threaded fit, the connecting support 65 is fixed on one side of the sliding block 62, the center of the first shearing force arm 67 is fixedly connected with the center of the second shearing force arm 68 through pin rod fit, the two ends of the first shearing force arm 67 and the two ends of the second shearing force arm 68 are respectively connected with the connecting supports 65 at four corners through pin rod fit, the head of the second positioning bolt 61 is pressed and positioned with the bottom side of the first expansion plate 64 and the top side of the second expansion plate 69.
The inboard of guard shield 1 is encircleed and is provided with the rubber tape, improves the travelling comfort of wearing.
The three sets of UV lamps 43 are disposed between the two photocatalyst nets 44, and can purify the exhaust gas.
The top end of the positioning rod 25 is an arc-shaped surface, and the top end surface of the positioning rod 25 is tangent to the tooth groove surface of the gear 23, so that the conversion between the sunglasses 22 and the glass mirror surface can be stably realized.
The sunglasses 22 are correspondingly arranged at the front side of the glass mirror surface in the shield 1, and can play a role of protecting eyes.
Under the cooperation of the binding band 3, the protective cover 1 is worn on the face of an operator, when welding is carried out, a switch of a stored power supply is turned on, the fan 45 and the UV lamp tube 43 are electrified, air filtered by the filter screen 46 is discharged into the air inlet cylinder 41 under the action of the fan 45, the air is irradiated by the UV lamp tube 43 to decompose waste gas, after decomposition and purification, the air is adsorbed and filtered by the activated carbon net plate 42, the air in the protective cover 1 is ensured to be pollution-free, toxic gas generated by welding is prevented from being sucked, the body health of the operator is ensured, when protection is carried out, the angle of the accommodating tube 55 is changed by releasing the rotary bolt 56, the extension length of the telescopic tube 53 is changed by releasing the first positioning bolt 54, under the cooperation of the gooseneck tube 52, the toughened glass 51 is placed on the outer side of a welding spot, the electric spark collapse can be avoided, the damage to the operator is reduced, when welding, move sunglasses 22, realize the rotation of rotary rod 24, drive the rotation of gear 23, locating lever 25 joint in the tooth's socket of the difference of gear 23 under extrusion spring 27's effect, can realize the fixed to sunglasses 22, long service life, the problem of smooth silk can not take place, when protecting, through changing the slider 62 in the position of spout 63, change the cross angle of first shearing arm 67 and second shearing arm 68, after changing cross angle, realize the extension of first expansion plate 64 and second expansion plate 69 interval, extend nylon cloth 66, can change the protection to the human body at random, and the operation is convenient, can be better protection.
In summary, compared with the prior art, the method has the following beneficial effects:
1. when the welding, under the effect of fan, in will going into the section of thick bamboo that admits air through the air discharge after the filter screen filters, the air passes through the UV fluorescent tube and shines, decomposes waste gas, after decomposing and purifying, adsorbs through activated carbon mesh board and filters, guarantees the air pollution-free in the guard shield, avoids the poison gas that the welding produced to be inhaled, guarantees that operating personnel's is healthy.
2. Through protective structure, place toughened glass in the outside of solder joint, can avoid bursting out of electric spark, reduce the damage to operating personnel.
3. The fixing of sunglasses can be realized through setting up the shielding structure, long service life, the problem of smooth silk can not take place.
4. Through setting up scalable structure of sheltering from, can shelter from the area according to the random regulation of human posture, can random operation, protection that can be better.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (8)
1. A safety shield for welding, comprising: the air inlet structure comprises a protective cover (1), a shielding structure (2), a binding band (3), an air inlet structure (4), a protective structure (5) and a telescopic shielding structure (6), wherein the air inlet structure (4) is arranged on the bottom side of the protective cover (1), the protective structure (5) is arranged at the front end under the protective cover (1), the shielding structure (2) is arranged at the front end of the top of the protective cover (1), the binding band (3) is fixedly adhered to the rear side of the protective cover (1), and the telescopic shielding structure (6) is arranged on the bottom side of the protective cover (1);
protective structure (5) include toughened glass (51), gooseneck (52), flexible pipe (53), first positioning bolt (54), accomodate pipe (55), swivel bolt (56) and connect support (57), connect support (57) through welded fastening at the end side middle part of guard shield (1), the one end of accomodating pipe (55) is passed through swivel bolt (56) cooperation grafting and is installed inside connecting support (57), flexible pipe (53) cooperation grafting is installed in the bottom of accomodating pipe (55), first positioning bolt (54) runs through the screw-thread fit and installs the bottom port department of accomodating pipe (55), the bottom end in flexible pipe (53) is fixed on the top of gooseneck (52), toughened glass (51) are glued and are fixed at the bottom end of gooseneck (52).
2. The safety shield for welding according to claim 1, wherein the air inlet structure (4) comprises an air inlet cylinder (41), an activated carbon mesh plate (42), UV lamp tubes (43), a photocatalyst net (44), a fan (45) and a filter screen (46), the filter screen (46) is embedded and fixed at the bottom end face of the air inlet cylinder (41), the fan (45) is fixedly installed at the bottom end part of the air inlet cylinder (41), two photocatalyst nets (44) are fixed between two side walls of the middle part of the inner cavity of the air inlet cylinder (41), three UV lamp tubes (43) are fixed between two side walls of the middle part of the inner cavity of the air inlet cylinder (41) in parallel, and the activated carbon mesh plate (42) is fixed at the top end port of the air inlet cylinder (41).
3. Safety shield for welding according to claim 1, characterized in that the shielding structure (2) comprises a holder (21), a sunglass (22), a gear (23), a rotary rod (24), a positioning rod (25), a positioning barrel (26) and a compression spring (27), the rotating rod (24) is arranged on the side wall of the shield (1) in a matching way through a bearing, the gear (23) is sleeved and fixed outside the rotating rod (24), the fixing frame (21) is fixed on the side surface of the end part of the rotating rod (24), the sunglasses (22) are adhered and fixed at the other end of the fixed frame (21), the positioning cylinder (26) is vertically fixed on the outer side surface of the side wall of the shield (1), the bottom end of the positioning rod (25) is matched and inserted into the positioning barrel (26), and an extrusion spring (27) is arranged between the bottom end of the positioning rod (25) and the wall of the inner cavity barrel of the positioning barrel (26).
4. The safety shield for welding according to claim 3, wherein the retractable shielding structure (6) comprises a second positioning bolt (61), a sliding block (62), a sliding groove (63), a first expansion plate (64), a connecting support (65), nylon cloth (66), a first shearing arm (67), a second shearing arm (68) and a second expansion plate (69), the nylon cloth (66) is adhered between the first expansion plate (64) and the second expansion plate (69) through glue, the sliding groove (63) is correspondingly formed in the upper and lower parts of the two ends of the bottom side of the first expansion plate (64) and the top side of the second expansion plate (69), the sliding block (62) is arranged inside the sliding groove (63), the second positioning bolt (61) is installed on one side of the sliding block (62) through threaded fit, the connecting support (65) is fixed on one side of the sliding block (62), the center of first shearing arm (67) passes through pin rod cooperation rigid coupling with the center of second shearing arm (68), the both ends of first shearing arm (67) and the both ends of second shearing arm (68) are connected through the pin rod cooperation with connecting support (65) at four corners respectively, the bolt head of second positioning bolt (61) and the bottom flank of first expansion plate (64) and the top flank extrusion location of second expansion plate (69).
5. Safety shield for welding according to claim 3, characterized in that the inside of the shield (1) is provided with a rubber band around it.
6. A safety shield for welding as claimed in claim 2 wherein three sets of said UV light tubes (43) are disposed between two said photocatalyst nets (44).
7. A safety guard for welding as claimed in claim 1 wherein the top end of the locator bar (25) is an arcuate surface, the top end surface of the locator bar (25) being tangential to the face of the gullet of the gear (23).
8. Safety shield for welding according to claim 3, characterized in that said sunglasses (22) are arranged correspondingly in front of the glass mirror surface in the shield (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911067099.6A CN110916898B (en) | 2019-11-04 | 2019-11-04 | Be used for welded safety protective equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911067099.6A CN110916898B (en) | 2019-11-04 | 2019-11-04 | Be used for welded safety protective equipment |
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| Publication Number | Publication Date |
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| CN110916898A CN110916898A (en) | 2020-03-27 |
| CN110916898B true CN110916898B (en) | 2022-02-01 |
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| CN201911067099.6A Active CN110916898B (en) | 2019-11-04 | 2019-11-04 | Be used for welded safety protective equipment |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112192102B (en) * | 2020-10-12 | 2022-08-12 | 樟树市三石工程咨询有限公司 | Protective device |
| CN114432037A (en) * | 2020-11-05 | 2022-05-06 | 江苏美信光电科技有限公司 | Welding mask with heat dissipation rib structure |
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| JPS53117533U (en) * | 1977-02-25 | 1978-09-19 | ||
| CN201445596U (en) * | 2009-06-10 | 2010-05-05 | 朱晓锋 | Improved head screen |
| EP2338446A1 (en) * | 2009-12-24 | 2011-06-29 | Otos Wing Co., Ltd. | Method for controlling cartridge of welding helmet having display function of welding operation time |
| US9287475B2 (en) * | 2012-07-20 | 2016-03-15 | Cree, Inc. | Solid state lighting component package with reflective polymer matrix layer |
| US9009862B2 (en) * | 2013-09-12 | 2015-04-21 | Otos Wing Co., Ltd. | Welding helmet equipped with light switching window |
| CN203915226U (en) * | 2014-06-19 | 2014-11-05 | 江苏建筑职业技术学院 | The welding spark protective cover that splashes |
| CN204611312U (en) * | 2015-04-09 | 2015-09-02 | 颜丹佳 | A kind of prevent weld time facial wound device |
| CN206434478U (en) * | 2016-11-02 | 2017-08-25 | 塔里木大学 | Electrogas welding protector |
| CN206202443U (en) * | 2016-11-28 | 2017-05-31 | 清远浩和仪器设计有限公司 | Type headstock hood is turned over before a kind of commercial car |
| CN207462626U (en) * | 2017-11-24 | 2018-06-08 | 陈惠祺 | A kind of head protection tool for free combat |
| CN208246022U (en) * | 2018-04-24 | 2018-12-18 | 湖南省第三工程有限公司 | A kind of electric welding blowout prevention spark device |
| CN209131982U (en) * | 2018-09-26 | 2019-07-19 | 杨蕾谕 | A kind of motor vehicle braking systems verifying attachment |
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| CN110916898A (en) | 2020-03-27 |
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