Welding helmet with visor and protection system

Abstract

The application discloses a welding mask with a wind shield and a protection system, wherein the welding mask with the wind shield comprises a mask body including a helmet body for protecting the head and a protective mirror for protecting the face, the side edge of the protective mirror is provided with a first positioning part, and the side edge of the helmet body is provided with a second positioning part; the wind shield comprises a flexible part provided with a wearing hole and a first plug-in piece and a second plug-in piece arranged at the side edge of the flexible part; the wind shield has a connected state matched with the mask body to form a protection space and an opposite separated state; in the connected state, the first plug-in piece is matched with the first positioning part, the second plug-in piece is matched with the second positioning part, and the side edge of the wearing hole is abutted against the head of a wearer to realize the closure of the protection space by the flexible part. The technical scheme disclosed by the application realizes the installation or separation of the mask body and the wind shield through plug-in matching, thereby providing a relatively closed protection space, guaranteeing the protection performance and improving the use experience.

Description

Technical Field

[0001] This application relates to the field of personal protective equipment, and in particular to welding masks with wind shields and protective systems. Background Technology

[0002] Welding face shields are widely used in various applications requiring facial protection. At the welding site, protective welding shields equipped with automatic light-changing filters can protect the user's eyes from harmful rays and spatter during welding operations.

[0003] To improve the protective effect of welding masks, existing technologies have attempted to incorporate flexible protective components. For example, Chinese patent document CN110652395A discloses a welding mask and control system for remote video transmission welding. This includes a protective cover and clamping assemblies installed on the inner ends of both sides of the protective cover for interaction with the outer wall of a safety helmet. A fixing frame is mounted on the upper end of the front of the clamping assembly, and two sides of the upper end of the front of the fixing frame are fitted with hinges. A hinge seat is hinged to the inner side, and a hinge plate is mounted at the bottom of the hinge seat. A transparent protective plate is mounted on the front of the hinge plate. A drive assembly for rotating the hinge plate is provided on the inner side. A mounting base is located at the middle of the top of the protective cover, and a camera is mounted on the top of the mounting base. A flexible protective cloth is installed around the bottom of the outer side of the protective cover.

[0004] The inventors discovered that the connection method between the flexible protective component and the mask body in the existing technology cannot meet the usage requirements and there is room for improvement. Utility Model Content

[0005] To address the aforementioned technical problems, this application discloses a welding face shield with a windproof cover, comprising: The hood includes a helmet body that protects the top of the head and a protective mirror that protects the face. The protective mirror has a first positioning part on its side edge, and the helmet body has a second positioning part on its side edge. The windshield includes a flexible member with wearing holes and a first insert and a second insert disposed on the side edge of the flexible member; The windshield has a connected state that cooperates with the cover body to form a protective space and a relatively separated state; in the connected state, the first insert piece cooperates with the first positioning part, the second insert piece cooperates with the second positioning part, and the side edge of the wearing hole abuts against the wearer's head to realize the closure of the protective space by the flexible component.

[0006] Several alternative methods are provided below, but they are not intended as additional limitations on the overall solution above. They are merely further additions or optimizations. Provided there are no technical or logical contradictions, each alternative method can be combined individually with respect to the overall solution above, or multiple alternative methods can be combined with each other.

[0007] In one embodiment, the protective mirror has an outer side and an inner side opposite to each other in the line of sight direction, the first positioning part is disposed on the inner side, and a first locking mechanism is provided between the first positioning part and the first plug-in piece to lock or release the phase opposition between the two, and the first plug-in piece moves at least in the line of sight direction to achieve connection or separation with the first positioning part.

[0008] In one embodiment, the first insert tab is U-shaped, and both sides of the U-shape include: The first portion extending in the first direction; The second part extending in the second direction; The first direction intersects with the second direction, and a plurality of the first locking mechanisms are sequentially provided in the extension direction of the first plug-in piece.

[0009] In one embodiment, the second positioning part is shaped to fit the second plug piece, and a second locking mechanism is provided between the second positioning part and the second plug piece to prevent the second plug piece from exiting the second positioning part.

[0010] In one embodiment, during installation, the second insert piece enters the second positioning part in the height direction of the helmet body and locks the second locking mechanism. During disassembly, the second connector moves in the circumferential direction of the helmet body to release the second locking mechanism.

[0011] In one embodiment, the second locking mechanism includes a second latch extending in the insertion direction of the second plug-in piece and a second locking groove cooperating with the second latch. In the extension direction of the second plug-in piece, the second locking groove includes a release section that allows the second latch to enter or exit and a locking section that restricts the relative position of the second latch.

[0012] In one embodiment, a third locking mechanism is provided between the second positioning part and the second plug piece to prevent the second plug piece from sliding relative to the second positioning part.

[0013] In one embodiment, the protective goggle is rotatably mounted on the helmet body via hinge shafts located on both sides, and both the first and second insert pieces are U-shaped with their U-shaped openings adjacent to the corresponding hinge shafts.

[0014] In one embodiment, the side edge of the wearing hole is an expandable or contractible elastic structure; or The windshield has an adjustable structure that can adjust the size of the wearing hole.

[0015] This application also discloses a protective system, including a fresh air fan and a welding mask with a windshield as described in the above technical solution. The welding mask includes a fresh air inlet connected to the fresh air fan, and the airflow delivered by the fresh air fan forms a positive pressure in the protective space.

[0016] The technical solution disclosed in this application allows for convenient installation or separation of the cover and the windshield through the plug-in connection, thereby providing a relatively enclosed protective space, ensuring protective performance while improving the user experience.

[0017] The specific beneficial technical effects will be further explained in the specific implementation methods in conjunction with the specific structures or steps. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of a welded face shield structure with a windshield in one embodiment of this application; Figure 2 for Figure 1 A schematic diagram of the windshield structure in the middle; Figure 3 for Figure 1 A schematic diagram showing the connection between the welding mask body and the windshield in the diagram; Figure 4 A schematic diagram showing the mating of the first positioning part and the first insertion piece; Figure 5 This is a schematic diagram of the first connector structure; Figure 6 This is a schematic diagram of the second connector structure; Figure 7 This is a schematic diagram showing the engagement of the helmet body (excluding the outer protective shell) and the first connector.

[0019] The annotations in the figure are explained as follows: 100. Helmet body; 110. Second positioning part; 200. Protective goggles; 201. Hinge shaft; 210. First positioning part; 211. Limiting rib; 300, windshield; 310, flexible component; 311, wearing hole; 320, first connector; 321, first part; 322, second part; 330, second connector; 410. First locking mechanism; 411. First locking tongue; 412. First locking plate; 413. Guide plate; 414. Guide groove; 420. Second locking mechanism; 421. Second locking tongue; 422. Second locking groove; 4221. Release section; 4222. Locking section; 4223. Locking end; 430. Third locking mechanism; 431. Third lock hole; 432. Third locking plate; 433. Control end; 800. Fresh air intake; 810. Distribution structure; 901. Helmet circumference; 902. Helmet height. Detailed Implementation

[0020] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0021] It should be noted that when a component is said to be "connected" to another component, it can be directly connected to the other component or it can be connected to a component in between. When a component is said to be "set on" another component, it can be directly set on the other component or it may be set to a component in between.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0023] This application discloses a welded face shield with a wind deflector, including a shield body and a wind deflector 300 that cooperates with the shield body. The wind deflector 300 and the shield body are detachably fitted to meet the usage requirements of different scenarios. The wind deflector 300 has a connection state that cooperates with the shield body to form a protective space (see attached diagram). Figure 1 (as shown) and the relative separation state (see attached) Figure 3 (As shown). For details, please refer to the appendix. Figure 1 To be continued Figure 3In the illustrated embodiment, the shield includes a helmet 100 protecting the top of the head and a protective mirror 200 protecting the face. The protective mirror 200 has a first positioning portion 210 on its side edge, and the helmet 100 has a second positioning portion 110 on its side edge. The windshield 300 includes a flexible member 310 with a wearing hole 311 and a first insert piece 320 and a second insert piece 330 disposed on the side edge of the flexible member 310. In the connected state, the first insert piece 320 engages with the first positioning portion 210, and the second insert piece 330 engages with the second positioning portion 110. The side edge of the wearing hole 311 rests against the wearer's head to achieve the closure of the protective space by the flexible member 310. The windshield 300 and the cover are detachably connected through the cooperation between the first positioning part 210-first insert piece 320 and the second positioning part 110-second insert piece 330, so as to facilitate the installation or separation of the two. The flexible part 310 and the cover provide the boundary of the protective space, thereby providing a relatively closed protective space, ensuring the protective performance while improving the user experience.

[0024] For details regarding the fit between the first positioning part 210 and the first connector 320, please refer to the appendix. Figure 2 To be continued Figure 5 In the illustrated embodiment, the protective goggle 200 has opposing outer and inner sides in the line-of-sight direction, with the first positioning part 210 disposed on the inner side. (See attached drawing.) Figure 3 and attached Figure 4 In the first positioning part 210, an open side edge is provided, and a limiting rib 211 is provided inside to limit the mating depth of the first insertion piece 320. In the connected state, the first insertion piece 320 abuts against the surface of the first positioning part 210 and abuts against the limiting rib 211. The first positioning part 210 and the first insertion piece 320 are matched in overall shape, as shown in the attached figure. Figure 5 In the illustrated embodiment, the first insert tab 320 is U-shaped, and each of the two side walls of the U-shape includes a first portion 321 extending in a first direction and a second portion 322 extending in a second direction, wherein the second portions 322 are interconnected to form the bottom of the U-shaped structure. The first direction mentioned above intersects the second direction, that is, the first portion 321 and the second portion 322 are not coplanar.

[0025] To improve the mutual positioning effect of the first positioning part 210 and the first insertion piece 320, a first locking mechanism 410 is provided between the first positioning part 210 and the first insertion piece 320 to lock or release their phase opposition. The first insertion piece 320 moves at least in the line of sight direction to achieve connection or separation with the first positioning part 210. (See attached diagram) Figure 3As shown, the first locking mechanism 410 includes a first locking tongue 411 extending in the insertion direction intersecting the first insertion piece 320, and a first locking plate 412 cooperating with the first locking tongue 411. The first locking plate 412 is elastically configured to lock or unlock the first locking mechanism 410. Further, a plurality of first locking mechanisms 410 are sequentially arranged in the extending direction of the first insertion piece 320. In the embodiment described above where the first insertion piece 320 is provided with a first portion 321 and a second portion 322, the first locking mechanisms 410 at different positions on the first insertion piece 320 can be distinguishably configured. (Refer to the attached diagram.) Figure 4 As shown, the first locking mechanism 410 acting on the first portion 321 of the first insert 320 also includes a guide piece 413 disposed on one side of the first locking piece 412 and a guide groove 414 cooperating with the guide. The guide and the guide groove 414 cooperate to drive the first locking piece 412 to conform to the side wall where the first latch 411 is located (e.g., the first positioning part 210 shown in the figure). The guide pieces 413 can be arranged in pairs and respectively disposed on both sides of the first locking piece 412, and the guide grooves 414 are correspondingly disposed with the guide pieces 413 and located on both sides of the first latch 411. The first locking mechanism 410 acting on the second portion 322 of the first insert 320 is disposed away from the first portion 321 and close to the bottom of the U-shaped structure of the first insert 320.

[0026] Overall, the first insert piece 320 is a one-piece molded sheet structure, and the component in the first locking mechanism 410 located on the first insert piece 320 is formed by extending the material of the first insert piece 320 itself. The first insert piece 320 can be flattened into a planar structure. The flexible component 310 is directly or indirectly installed on the side edge of the first insert piece 320, for example, by means of bonding, fastening, snapping, welding, magnetic attraction, adhesion, Velcro, etc.

[0027] For details regarding the fit between the second positioning part 110 and the second connector 330, please refer to the appendix. Figure 3 Appendix Figure 6 and appendix Figure 7 In the illustrated embodiment, the second positioning part 110 is shaped to fit the second insert piece 330. The second positioning part 110 is a positioning groove disposed within the helmet body 100, and the second insert piece 330 is inserted into the positioning groove. The positioning groove extends at least to the rear of the helmet body 100 (i.e., the side away from the goggle 200). See attached figure. Figure 3In the illustrated embodiment, the protective goggle 200 is rotatably mounted on the helmet 100 via hinge shafts 201 located on both sides. The first insert piece 320 and the second insert piece 330 are both U-shaped, and the opening of the U-shape of the two are respectively adjacent to the hinge shafts 201 on the corresponding sides. Correspondingly, the first positioning part 210 extends from near one hinge shaft 201 to near the other hinge shaft 201 on the side edge of the protective goggle 200, and the second positioning part 110 extends from near one hinge shaft 201 to near the other hinge shaft 201 on the side edge of the helmet 100.

[0028] Positioning between the second positioning part 110 and the second insertion piece 330 can be achieved directly through their insertion and engagement. Alternatively, as shown in the accompanying drawings, a second locking mechanism 420 is provided between the second positioning part 110 and the second insertion piece 330 to prevent the second insertion piece 330 from retracting from the second positioning part 110. To simplify operation and improve the installation experience, this embodiment provides a locking / unlocking method between the second positioning part 110 and the second insertion piece 330: During installation, the second connector 330 enters the second positioning part 110 in the helmet height direction 902 and locks the second locking mechanism 420. During disassembly, the second insert piece 330 moves in the circumferential direction 901 of the helmet body to release the second locking mechanism 420.

[0029] That is, in the extending direction of the second insert 330, the second insert 330 can slide relative to the second positioning part 110. This arrangement facilitates installation while ensuring locking security and preventing accidental unlocking. The above locking / unlocking method can be implemented using various structures; the specific structure of the second locking mechanism 420 will be given as an example below. (See attached document.) Figure 6 and attached Figure 7 In the illustrated embodiment, the second locking mechanism 420 includes a second latch 421 extending in the insertion direction intersecting the second insert 330 and a second locking groove 422 cooperating with the second latch 421. In the extending direction of the second insert 330, the second locking groove 422 includes a release section 4221 allowing the second latch 421 to enter or exit and a locking section 4222 restricting the relative position of the second latch 421. The above structure is configured as follows to implement the locking / unlocking method mentioned above: During installation, the second insert piece 330 enters the second positioning part 110 in the helmet height direction 902. The locking end 4223 on the locking section 4222 of the second locking groove 422 deforms under the drive of the second locking tongue 421 to allow the second locking tongue 421 to enter the locking section 4222. When the second insert piece 330 moves to the preset position in the height direction of the helmet 100, the second locking mechanism 420 locks. During disassembly, the second insert piece 330 moves in the circumferential direction 901 of the helmet body, and the second locking tongue 421 moves from the locking section 4222 of the second locking groove 422 to the releasing section 4221, thereby allowing the second locking tongue 421 to exit the second locking groove 422, so as to release the second locking mechanism 420.

[0030] In order to provide a uniform holding torque in the extension direction of the second plug piece 330, multiple second locking mechanisms 420 are provided in the extension direction of the second plug piece 330, and each second locking mechanism 420 releases synchronously when the second plug piece 330 moves in the circumferential direction of the helmet body 100.

[0031] To further ensure the connection stability between the windshield 300 and the helmet body 100, please refer to the attached... Figure 7 In the illustrated embodiment, a third locking mechanism 430 is provided between the second positioning portion 110 and the second insertion piece 330 to prevent the second insertion piece 330 from sliding relative to the second positioning portion 110. The third locking mechanism 430 specifically includes: The third locking hole 431 is located on the second plug-in piece 330; The third locking plate 432 has a locking position that engages with the third locking hole 431 and a releasing position that exits the third locking hole 431.

[0032] To facilitate user control of the third locking mechanism 430, the third locking plate 432 has a control end 433 extending out of the helmet body 100. Furthermore, the third locking plate 432 is a U-shaped structure with one end fixed to the helmet body 100 and the other end freely disposed. The third locking plate 432 maintains its engagement with the third locking hole 431 through its own elasticity. The user drives the third locking plate 432 to deform through the control end 433 to enter the release position, thereby releasing the third locking mechanism 430.

[0033] Based on the above, the windshield 300 in this application is stably connected to the cover body via the first connector 320 and the second connector 330. The cover body and the flexible element 310 of the windshield 300 together form a relatively closed protective space. To improve the wearing experience and sealing effect, the side edge of the wearing hole 311 is an expandable or contractible elastic structure; or the windshield 300 has an adjustable structure that can adjust the size of the wearing hole 311. Furthermore, this application also discloses a protective system, including a fresh air fan and a welded face shield with a windshield according to the above technical solution. The welded face shield includes a fresh air inlet 800 connected to the fresh air fan, and the airflow delivered by the fresh air fan forms positive pressure within the protective space. The specific structure of the welded face shield is described above and will not be repeated here.

[0034] The positive pressure setting within the protective space allows for good protection even with minute gaps between the helmet and the windshield 300 (e.g., the gap between the windshield 300 and the helmet; or the gap between the wearing hole 311 of the windshield 300 and the user's face), preventing dust and foreign objects from the external environment from entering the protective space through these gaps. Furthermore, a fresh air vent 800 is located on the helmet body 100, and the helmet body 100 also has a distribution structure 810 for distributing the fresh air flow delivered by the fresh air vent 800, providing a comfortable and safe wearing experience.

[0035] The details of the standard settings in the protective system, such as the fresh air fan, air supply duct, helmet 100, protective goggles 200, and photochromic lenses, can be implemented using existing technologies and will not be elaborated here.

[0036] The technical features of the embodiments described above can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as the combination of these technical features does not contradict each other, it should be considered to be within the scope of this specification. When technical features of different embodiments are embodied in the same drawing, it can be regarded as the drawing also disclosing examples of combinations of the various embodiments involved.

[0037] The embodiments described above are merely examples of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these modifications and improvements all fall within the protection scope of this application.

Claims

1. A welded face shield with a windproof cover, characterized in that, include: The hood includes a helmet body that protects the top of the head and a protective mirror that protects the face. The protective mirror has a first positioning part on its side edge, and the helmet body has a second positioning part on its side edge. The windshield includes a flexible member with wearing holes and a first insert and a second insert disposed on the side edge of the flexible member; The windshield has a connected state that cooperates with the cover body to form a protective space and a relatively separated state; in the connected state, the first insert piece cooperates with the first positioning part, the second insert piece cooperates with the second positioning part, and the side edge of the wearing hole abuts against the wearer's head to realize the closure of the protective space by the flexible component.

2. The welding mask with a windproof shield according to claim 1, characterized in that, The protective mirror has an outer side and an inner side in the line of sight direction. The first positioning part is disposed on the inner side. A first locking mechanism is provided between the first positioning part and the first plug-in piece to lock or release the phase opposition between the two. The first plug-in piece moves at least in the line of sight direction to achieve connection or separation with the first positioning part.

3. The welding mask with a windproof shield according to claim 2, characterized in that, The first connector is U-shaped, and both sides of the U-shape include: The first portion extending in the first direction; The second part extending in the second direction; The first direction intersects with the second direction, and a plurality of the first locking mechanisms are sequentially provided in the extension direction of the first plug-in piece.

4. The welding mask with a windproof shield according to claim 1, characterized in that, The second positioning part is shaped to fit the second plug piece, and a second locking mechanism is provided between the second positioning part and the second plug piece to prevent the second plug piece from exiting the second positioning part.

5. The welding mask with a windproof shield according to claim 4, characterized in that, During installation, the second connector enters the second positioning part in the height direction of the helmet body and locks the second locking mechanism. During disassembly, the second connector moves in the circumferential direction of the helmet body to release the second locking mechanism.

6. The welding mask with a windproof shield according to claim 5, characterized in that, The second locking mechanism includes a second latch extending in the insertion direction of the second plug-in piece and a second locking groove cooperating with the second latch. In the extension direction of the second plug-in piece, the second locking groove includes a release section that allows the second latch to enter or exit and a locking section that restricts the relative position of the second latch.

7. The welding mask with a windshield according to claim 6, characterized in that, A third locking mechanism is provided between the second positioning part and the second plug-in piece to prevent the second plug-in piece from sliding relative to the second positioning part.

8. The welding mask with a windproof shield according to claim 1, characterized in that, The protective goggles are rotatably mounted on the helmet body via hinge shafts located on both sides. Both the first and second insert pieces are U-shaped, and the openings of the U-shapes are adjacent to the corresponding hinge shafts.

9. The welding mask with a windproof shield according to claim 1, characterized in that, The side edge of the wearing hole is an expandable or contractible elastic structure; or The windshield has an adjustable structure that can adjust the size of the wearing hole.

10. A protective system comprising a fresh air fan and a welding mask with a windshield according to any one of claims 1 to 9, the welding mask comprising a fresh air inlet connected to the fresh air fan, wherein the airflow delivered by the fresh air fan creates positive pressure within the protected space.

Images