Turnover type welding mask

Abstract

The utility model discloses an overturning type welding mask which comprises a mask body, a cover body, a cover body, a cover body, a cover body, a cover body and a cover body, and the cover body comprises a window and an adaptive part, and one side wall of the adaptive part is an adaptive surface; the protective mirror comprises a frame and a hinge part hinged to the cover body, the hinge part defines a rotation axis, and the protective mirror is provided with a first position for shielding the window and a second position for opening the window in the circumferential direction of the rotation axis; the positioning structure comprises an adaptive surface arranged towards the rotating axis and an elastic piece matched with the adaptive surface, one end of the elastic piece is connected to the adaptive part or the hinging part, and the other end of the elastic piece is matched with the adaptive surface to keep the protective glasses at the first position or the second position; the elastic piece has an energy storage state pressed by the adaptive surface and a relative energy release state, and when the protective goggles are located at the first position or the second position, the elastic piece is in the energy release state; when the protective goggles are located between the first position and the second position, the elastic pieces are in an energy storage state. According to the invention, the stability, the convenience and the use feeling of the protective glasses in the overturning process can be considered.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of labor protection, in particular to a flip welding mask. BACKGROUND

[0002] The welding mask is worn on the head and used to cover the face area to help the welder protect against harmful light such as strong light, ultraviolet light generated during the welding process, and to isolate heat, dust and spatter. When observing the welding part, cleaning the welding slag or adjusting the welding part, the mask needs to be repeatedly flipped up as a whole. Since the welding mask has a certain weight and volume, and the center of gravity of the welding mask is forward when it is flipped up, frequent flipping up and down can easily cause fatigue of the head and neck. Therefore, there is a mask structure with flip protective lenses in the prior art.

[0003] For example, the Chinese patent document with publication number CN215839906U discloses a welding mask with switchable protective lenses. The inside of the mask body is hollow and has a containing cavity for wearing on the head. An observation window is provided at the front end of the mask body and is in communication with the containing cavity. The upper end of the observation window is fixedly connected with two buckle members, and the two buckle members are each provided with a clamping hole. The lower end of the observation window is fixedly connected with a fixed screw mounting hole. The upper end of the lens mounting assembly is connected with the two buckle members, and the upper end of the lens mounting assembly is clamped by the two clamping holes. The lower end of the lens mounting assembly is connected with the fixed screw mounting hole. The lens flip mounting assembly is rotatably connected to the surface of the lens mounting assembly and is located at the end away from the containing cavity. By flipping the lens flip mounting assembly, the current protective lens can be quickly switched.

[0004] Similar to the above-mentioned document, the assembly structure of the protective lens in the prior art cannot balance stability, convenience and use experience, and there is room for improvement. Utility model content

[0005] In order to solve the above technical problems, the present application discloses a flip welding mask, comprising:

[0006] The mask body includes a window and an adapter part provided on one side of the window. One side wall of the adapter part is an adapter surface.

[0007] The protective lens includes a frame for mounting the lens and a hinge part hinged to the mask body. The hinge part defines a rotation axis. In the circumferential direction of the rotation axis, the protective lens has a first position shielding the window and a second position opening the window.

[0008] The positioning structure comprises an adapter surface arranged towards the rotation axis and an elastic member matched with the adapter surface, one end of the elastic member is connected to the adapter part or the hinged part, the other end of the elastic member is matched with the adapter surface to keep the protective lens in the first position or the second position; the elastic member has an energy storage state pressed by the adapter surface and an opposite energy release state, when the protective lens is located in the first position or the second position, the elastic member is in the energy release state; when the protective lens is located between the first position and the second position, the elastic member is in the energy storage state.

[0009] The following also provides several optional modes, but not as an additional limitation to the above general scheme, just a further supplement or preferred, without technical or logical contradiction, each optional mode can be combined alone for the above general scheme, but also can be combined between multiple optional modes.

[0010] In one embodiment, the elastic member and the protective lens are integrated or separate structures; or

[0011] The elastic member and the cover are integrated or separate structures.

[0012] In one embodiment, the hinged part is provided with a mounting groove open towards the adapter part, the elastic member comprises a trigger block movably mounted in the mounting groove and a reset member arranged between the trigger block and the mounting groove.

[0013] In the circumferential direction of the rotation axis, both sides of the adapter surface are also respectively provided with a first retaining surface and a second retaining surface, the first retaining surface, the adapter surface and the second retaining surface are continuously arranged; when the frame is located in the first position, the trigger block is located at the connecting position of the first retaining surface and the adapter surface, when the frame is located in the second position, the trigger block is located at the connecting position of the second retaining surface and the adapter surface.

[0014] In one embodiment, during the movement of the protective lens from the first position to the second position, the trigger block always cooperates with the adapter surface.

[0015] In one embodiment, the hinged part is protrudingly arranged compared to the frame, the hinged part is provided with a hinged shaft extending oppositely or a hinged hole extending backward on both sides, the hinged shaft or the hinged hole provides the rotation axis, the mounting groove is arranged between the two hinged holes or the two hinged shafts.

[0016] In one embodiment, a guide column in the movement direction of the trigger block is arranged in the mounting groove, a guide hole slidingly matched with the guide column is arranged on the trigger block, and the reset member is a coil spring arranged around the guide column.

[0017] In one of the embodiments, the elastic member is in the energy storage state, and the trigger block presses the reset member; the elastic member is in the energy release state, and the reset member drives the trigger block to at least partially protrude out of the mounting slot.

[0018] In one of the embodiments, the first retaining surface, the adapting surface, and the second retaining surface are all arranged as planes, and the trigger block is movably coupled with each plane through a circular arc portion at the top end of the trigger block.

[0019] In one of the embodiments, the adapting portion is arranged to be recessed compared with the cover body, and the adapting portion is provided with a hinge shaft extending in opposite directions or a hinge hole extending in a back direction on two opposite side walls, the hinge shaft or the hinge hole provides the rotation axis, and the adapting surface is arranged between the two hinge shafts or the two hinge holes.

[0020] In one of the embodiments, the hinge portion is an integral structure with the frame and is located at the top of the frame, and in the left-right direction of the frame, the length of the hinge portion accounts for 20% to 60% of the length of the frame.

[0021] The technical solution disclosed in the present application can provide smooth opening and closing feeling while ensuring the connection strength through the optimization of the connection structure of the protective mirror and the cover body; and the cooperation of the elastic member and the adapting surface can realize the positioning of the protective mirror at the preset position and the driving of the protective mirror during movement between different positions, further improve the opening and closing feeling, and take into account the stability, convenience, and use feeling during the turning process of the protective mirror.

[0022] The specific beneficial technical effects will be further explained in the specific embodiments in combination with specific structures or steps. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 FIG. 1 is a structure schematic diagram of a flip-type welding face shield in an embodiment of the present application;

[0024] Figure 2 FIG. 2 is a cooperation schematic diagram of each component of the flip-type welding face shield in FIG. 1; Figure 1

[0025] Figure 3 Figure 1

[0026] Figure 4 FIG. 6 is a schematic diagram of the protective mirror of the flip-type welding face shield in a first position;

[0027] Figure 5 FIG. 7 is a schematic diagram of the protective mirror of the flip-type welding face shield in an intermediate position between the first position and a second position; ​​​

[0028] Figure 6 Fig. 2 is a schematic view of the protective lens of the flip-type welding mask in the second position.

[0029] Reference signs in the figures are explained as follows:

[0030] 100, mask body; 110, fitting part; 111, hinged shaft; 120, fitting surface; 121, first retaining surface; 122, second retaining surface;

[0031] 200, protective lens; 210, frame; 220, hinged part; 221, hinged hole; 222, guide slot; 230, mounting slot; 231, guide post;

[0032] 300, elastic member; 310, trigger block; 311, guide hole; 312, circular arc part; 320, reset member. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work belong to the scope of protection of the present application.

[0034] It should be noted that when a component is referred to as being "connected" with another component, it can be directly connected with the other component or there can be a middle component. When a component is referred to as being "disposed on" another component, it can be directly disposed on the other component or there can be a middle component.

[0035] 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 in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this description, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0036] Reference is made to the accompanying drawings that form a part of this Figure 1 to the accompanying drawings that form a part of this Figure 6 As shown in the drawings, the present application discloses a flip-type welding mask, which comprises a mask body 100, a protective lens 200 and a positioning structure for retaining the spatial position of the two, and the mask body 100 in the drawings only represents the part hinged with the protective lens 200.

[0037] In the embodiment shown in the figure, the cover 100 comprises a window and an adapter 110 disposed on one side of the window, the adapter 110 being a groove recessed compared to the outer surface of the cover 100 and one of the side walls being an adapter surface 120. The protective mirror 200 comprises a frame 210 for mounting a lens (the lens is transparent in the figure) and a hinge portion 220 hinged to the adapter 110, the hinge portion 220 being formed as a hinge seat protruding outward compared to the frame 210. The adapter 110 and the hinge portion 220 define a rotation axis, and in the circumferential direction of the rotation axis, the protective mirror 200 has a first position (for example, shown in Fig. 1) shielding the window and a second position (for example, shown in Fig. 2) opening the window, and the adapter surface 120 is disposed towards the rotation axis; one end of an elastic member 300 is connected to the hinge portion 220, and the other end is fitted to the adapter surface 120, and the elastic member 300 and the adapter surface 120 cooperate to keep the protective mirror 200 in the first position or the second position; the elastic member 300 has an energy storage state pressed by the adapter surface 120 and an opposite energy release state, and when the protective mirror 200 is in the first position or the second position, the elastic member 300 is in the energy release state; when the protective mirror 200 is between the first position and the second position (for example, shown in Fig. 3), the elastic member 300 is in the energy storage state. Figure 1 and Fig. 2 show) and a second position (for example, shown in Fig. 2) opening the window, and the adapter surface 120 is disposed towards the rotation axis; one end of an elastic member 300 is connected to the hinge portion 220, and the other end is fitted to the adapter surface 120, and the elastic member 300 and the adapter surface 120 cooperate to keep the protective mirror 200 in the first position or the second position; the elastic member 300 has an energy storage state pressed by the adapter surface 120 and an opposite energy release state, and when the protective mirror 200 is in the first position or the second position, the elastic member 300 is in the energy release state; when the protective mirror 200 is between the first position and the second position (for example, shown in Fig. 3), the elastic member 300 is in the energy storage state. Figure 4 and Fig. 2 show) and a second position (for example, shown in Fig. 2) opening the window, and the adapter surface 120 is disposed towards the rotation axis; one end of an elastic member 300 is connected to the hinge portion 220, and the other end is fitted to the adapter surface 120, and the elastic member 300 and the adapter surface 120 cooperate to keep the protective mirror 200 in the first position or the second position; the elastic member 300 has an energy storage state pressed by the adapter surface 120 and an opposite energy release state, and when the protective mirror 200 is in the first position or the second position, the elastic member 300 is in the energy release state; when the protective mirror 200 is between the first position and the second position (for example, shown in Fig. 3), the elastic member 300 is in the energy storage state. Figure 6 and Fig. 2 show) and a second position (for example, shown in Fig. 2) opening the window, and the adapter surface 120 is disposed towards the rotation axis; one end of an elastic member 300 is connected to the hinge portion 220, and the other end is fitted to the adapter surface 120, and the elastic member 300 and the adapter surface 120 cooperate to keep the protective mirror 200 in the first position or the second position; the elastic member 300 has an energy storage state pressed by the adapter surface 120 and an opposite energy release state, and when the protective mirror 200 is in the first position or the second position, the elastic member 300 is in the energy release state; when the protective mirror 200 is between the first position and the second position (for example, shown in Fig. 3), the elastic member 300 is in the energy storage state. Figure 5 and Fig. 2 show) and a second position (for example, shown in Fig. 2) opening the window, and the adapter surface 120 is disposed towards the rotation axis; one end of an elastic member 300 is connected to the hinge portion 220, and the other end is fitted to the adapter surface 120, and the elastic member 300 and the adapter surface 120 cooperate to keep the protective mirror 200 in the first position or the second position; the elastic member 300 has an energy storage state pressed by the adapter surface 120 and an opposite energy release state, and when the protective mirror 200 is in the first position or the second position, the elastic member 300 is in the energy release state; when the protective mirror 200 is between the first position and the second position (for example, shown in Fig. 3), the elastic member 300 is in the energy storage state.

[0038] The technical solution disclosed in the present application can provide a smooth opening and closing feeling while ensuring the connection strength by optimizing the connection structure of the protective mirror 200 and the cover 100; and by combining the cooperation of the elastic member 300 and the adapter surface 120, the positioning of the protective mirror 200 in the preset position and the driving during movement between different positions can be realized, further improving the opening and closing feeling, and taking into account the stability, convenience and use experience during the flipping process of the protective mirror 200.

[0039] In the specific setting of the elastic member 300, the elastic member 300 and the protective mirror 200 can be an integral structure, for example, the elastic member 300 is formed by extending a part of the frame 210 of the protective mirror 200 towards the adapter surface 120, and the body of the elastic member 300 is made of an elastic material, for example, a high polymer material or a metal material with elasticity. Similarly, the elastic member 300 and the protective mirror 200 can also be a separate structure, and the elastic member 300 is mounted on the frame 210 of the protective mirror 200. For example, in the embodiment shown in the figure, the hinge portion 220 is provided with a mounting groove 230 open towards the adapter portion 110, and the elastic member 300 comprises a trigger block 310 movably mounted in the mounting groove 230 and a reset member 320 disposed between the trigger block 310 and the mounting groove 230, and in the energy storage state of the elastic member 300, the trigger block 310 presses the reset member 320; in the energy release state of the elastic member 300, the reset member 320 drives at least a part of the trigger block 310 to protrude out of the mounting groove 230. In combination with the description of the above-mentioned embodiment, the specific structure and function of the elastic member 300 and the reset member 320 will not be repeated here. Figure 4To the accompanying Figure 6 As shown in the figure, the position of the hinge shaft (i.e. the rotation axis) is represented by the dashed circle inside the trigger block 310. As can be seen from the accompanying Figure 5 and other figures, the trigger block is obviously closer to the inside of the mounting groove in the energy storage state than in the energy release state. During the movement of the protective mirror 200 from the first position to the second position, the trigger block 310 always cooperates with the fitting surface 120. When the protective mirror 200 is in the first position or the second position, the elasticity of the elastic member 300 can keep the protective mirror 200 in the corresponding position, thereby ensuring the stability of the shielded window or the open window; correspondingly, when the protective mirror 200 is in the position shown in the figure, whether the protective mirror 200 moves towards the first position or the second position, the energy release of the elastic member 300 can provide assistance for the movement of the protective mirror 200, thereby improving the flipping feel of the protective mirror 200. Figure 5

[0040] The trigger block 310 can be guided by the mutual adaptation of its outer peripheral size and the mounting groove 230, or can refer to the embodiment shown in the accompanying Figure 3 As shown, a guide column 231 in the movement direction of the trigger block 310 is arranged in the mounting groove 230, and a guide hole 311 that slidably cooperates with the guide column 231 is arranged on the trigger block 310, and the reset member 320 is a coil spring arranged around the guide column 231. In the axial direction of the rotation axis, the guide column 231 is provided with a plurality of guide columns, among which the guide columns 231 on both sides correspond to the guide holes 311, and the guide column 231 in the middle is provided with a coil spring. The trigger block corresponds to the two guide holes provided with the coil spring and is in communication to form an avoidance groove, so as to provide more space for the state change of the coil spring.

[0041] The fitting surface 120 can be arranged separately or can refer to the embodiment shown in the accompanying Figure 5 As shown in the figure, in the circumferential direction of the rotation axis, the two sides of the fitting surface 120 are also respectively provided with a first retaining surface 121 and a second retaining surface 122, and the first retaining surface 121, the fitting surface 120 and the second retaining surface 122 are continuously arranged, when the frame 210 is in the first position, the trigger block 310 is in the connecting position of the first retaining surface 121 and the fitting surface 120, when the frame 210 is in the second position, the trigger block 310 is in the connecting position of the second retaining surface 122 and the fitting surface 120. Further, the first retaining surface 121, the fitting surface 120 and the second retaining surface 122 are all arranged as planes, and the trigger block 310 is movably cooperated with each plane through the arc part 312 at the top end thereof. In addition to further expanding the cooperation between the fitting surface 120 and the trigger block 310, the first retaining surface 121 and the second retaining surface 122 can also realize the cooperation to limit the limit position of the protective mirror. Referring to the accompanying Figure 4 ​As shown, when the protective goggles are in the first position, the side wall of the hinge 220 abuts against the second retaining surface 122, thereby determining the first position. Of course, other parts of the frame can also cooperate with other parts of the cover to further determine the first position; for example, the entire frame can cooperate with the side edge of the window. (See attached diagram.) Figure 6 As shown, when the protective goggles are in the second position, the sidewall of the hinge portion 220 abuts against the first retaining surface 121, thereby determining the second position.

[0042] Regarding the specific assembly relationship of each component, please refer to the embodiment shown in the attached drawings. The hinge portion 220 protrudes from the frame 210. Hinge holes 221 extending in opposite directions are provided on both sides of the hinge portion 220, providing a rotation axis. A mounting groove 230 is disposed between the two hinge holes 221. Correspondingly, the adapter portion 110 is recessed from the cover 100. Hinge shafts 111 extending in opposite directions are provided on two opposite sidewalls of the adapter portion 110, providing a rotation axis. An adapter surface 120 is disposed between the two hinge shafts 111. To facilitate assembly, a hinge hole 221 is provided on the end face of the hinge portion 220 along the axial direction of the rotation axis. A guide groove 222, opening towards the hinge shaft 111, is provided on the side edge of the hinge hole 221. The guide groove 222 is lower than the end face of the hinge portion 220 to allow the hinge shaft 111 to enter the hinge hole 221 via the guide groove 222 and engage with it. The hinge hole 221 and the hinge shaft 111 mentioned above can be interchanged, and the guide groove 222 will be adjusted accordingly.

[0043] For the overall structure, see Appendix Figure 2 In the embodiment shown, the hinge 220 is provided only once on the frame 210 and is an integral structure with the frame 210. The hinge 220 is located at the top of the frame 210. In the left-right direction of the frame 210, the length of the hinge 220 accounts for 20% to 60% of the length of the frame 210.

[0044] Based on the above, those skilled in the art can undoubtedly arrive at the technical solution where the elastic element 300 is connected to the adapter 110 and cooperates with the adapter surface 120 on the hinge 220. Similarly, the elastic element 300 and the cover 100 can be an integral structure or a separate structure as mentioned above. For specific details, please refer to the corresponding description above, which will not be repeated here.

[0045] The working process of the flip-type welding mask in this application is described in detail below with reference to the accompanying drawings:

[0046] See appendix Figure 4As shown, the shield 200 is in the first position, the elastic member 300 is in the energy storage state, the side wall of the hinged part 220 is in abutment with the second retaining surface 122, and any driving force for moving the shield 200 relative to the cover 100 needs to do work on the elastic member 300 to drive the elastic member 300 into the energy storage state, so the shield 200 can spontaneously remain in the first position.

[0047] When the user drives the shield 200 to move towards the second position, the elastic member 300 enters the energy storage state until the shield 200 moves to the position shown in the figure, the elastic member 300 stores the maximum energy, and in this position, no matter whether the shield 200 moves towards the first position or the second position, the shield 200 can spontaneously move to the first position or the second position in the energy release process of the elastic member 300. At this time, the user only needs to apply a guiding force to the shield 200 to realize the spontaneous movement of the shield 200. Figure 5

[0048] Referring to the figure, the shield 200 is in the second position, the elastic member 300 is in the energy storage state, the side wall of the hinged part 220 is in abutment with the first retaining surface 121, and any driving force for moving the shield 200 relative to the cover 100 needs to do work on the elastic member 300 to drive the elastic member 300 into the energy storage state, so the shield 200 can spontaneously remain in the second position. Figure 6

[0049] The user drives the shield 200 from the second position to the first position, and the process is the reverse of the above operation, which will not be described here.

[0050] The technical features of the above-described embodiments can be combined in any manner. To make the description concise, all possible combinations of the technical features in the above-described embodiments are not described, but as long as the combinations of the technical features do not exist, they should be considered as within the scope of the present disclosure. When the technical features in different embodiments are embodied in the same figure, it is considered that the figure also discloses the combination of the embodiments involved.

[0051] The above-described embodiments only express several implementation manners of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the patent scope. It should be noted that for those skilled in the art, without departing from the concept of the present application, some modifications and improvements can be made, which are within the scope of the present application.​​

Claims

1. A flip-top welding helmet characterized by, The application relates to a protective mirror, which comprises a cover body, a protective mirror and a positioning structure. The cover body comprises a window and an adapter arranged on one side of the window, wherein one side wall of the adapter is an adapter surface. The protective mirror comprises a frame for mounting a lens and a hinge part hinged to the cover body, and the hinge part defines a rotation axis, and the protective mirror has a first position for shielding the window and a second position for opening the window in the circumferential direction of the rotation axis. The positioning structure comprises an adapter surface arranged towards the rotation axis and an elastic piece matched with the adapter surface, one end of the elastic piece is connected to the adapter part or the hinge part, and the other end of the elastic piece is matched with the adapter surface to keep the protective mirror in the first position or the second position; the elastic piece has an energy storage state pressed by the adapter surface and an opposite energy release state, when the protective mirror is located in the first position or the second position, the elastic piece is in the energy release state; when the protective mirror is located between the first position and the second position, the elastic piece is in the energy storage state.

2. The flip-up welding helmet of claim 1, wherein, The elastic piece and the protective mirror are integrated or separated; or The elastic piece and the cover body are integrated or separated.

3. The flip-up welding helmet of claim 1, wherein, The hinge part is provided with a mounting groove opening towards the adapter part, the elastic piece comprises a trigger block movably mounted in the mounting groove and a reset piece arranged between the trigger block and the mounting groove. In the circumferential direction of the rotation axis, two sides of the adapter surface are respectively provided with a first retaining surface and a second retaining surface, and the first retaining surface, the adapter surface and the second retaining surface are continuously arranged; when the frame is located in the first position, the trigger block is located at the connecting position of the first retaining surface and the adapter surface, and when the frame is located in the second position, the trigger block is located at the connecting position of the second retaining surface and the adapter surface.

4. The flip-up welding helmet of claim 3, wherein, During the movement of the protective mirror from the first position to the second position, the trigger block is always matched with the adapter surface.

5. The flip-up welding shield of claim 3, wherein, The hinge part is protruded compared with the frame, and the hinge part is provided with a hinge shaft extending oppositely or a hinge hole extending reversely on two sides of the hinge part, the hinge shaft or the hinge hole provides the rotation axis, and the mounting groove is arranged between the two hinge holes or the two hinge shafts.

6. The flip-up welding shield of claim 3, wherein, The mounting groove is provided with a guide column in the movement direction of the trigger block, the trigger block is provided with a guide hole slidably matched with the guide column, and the reset piece is a coil spring arranged around the guide column.

7. The flip-up welding shield of claim 3, wherein, When the elastic piece is in the energy storage state, the trigger block extrudes the reset piece. When the elastic piece is in the energy release state, the reset piece drives the trigger block to at least partially extrude out of the mounting groove.

8. The flip-up welding shield of claim 3, wherein, The first retaining surface, the adapter surface and the second retaining surface are all arranged as planes, and the trigger block is movably matched with each plane through the arc part at the top end of the trigger block.

9. The flip-up welding shield of claim 1, wherein, The adapter part is recessed compared with the cover body, the adapter part is provided with a hinge shaft extending oppositely or a hinge hole extending reversely on two opposite side walls of the adapter part, the hinge shaft or the hinge hole provides the rotation axis, and the adapter surface is arranged between the two hinge shafts or the two hinge holes.

10. The flip-up welding helmet of claim 1, wherein, The hinge portion is integrated with the frame and is located at the top of the frame, and the length of the hinge portion accounts for 20% to 60% of the length of the frame in the left-right direction of the frame.

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