A hand-held face shield for welders

Abstract

The utility model discloses a kind of hand-held masks for welder, solve how to develop a kind of weld joint condition in observation welding process can be realized without removing mask problem;Observation window (2) is provided on mask (1), handle (3) is provided in the lower end middle part of mask (1), protective white glass cover (4) is provided in observation window (2), cavity chamber (6) is provided in the mask (1) below observation window (2), black glass cover body (5) is movably provided in cavity chamber (6), and black glass cover body (5) is provided in the inside of protective white glass cover (4);Spring mounting chamber (7) is provided on the inside vertical surface of handle (3), spring (8) is provided in spring mounting chamber (7), L-shaped push rod (9) is connected to the upper end of spring (8), and the upper end of L-shaped push rod (9) is fixedly connected with the inside surface of black glass cover body (5) together;Greatly improve welding quality and welding efficiency.

Description

Technical Field

[0001] This utility model relates to a welding protection device, and more particularly to a handheld mask for welders. Background Technology

[0002] A welding mask is a tool used in welding and cutting operations to protect the safety of workers, specifically the welder's eyes and face, from arc radiation damage. A handheld welding mask consists of an observation window, a filter, a protective plate, and the mask itself. Traditional handheld masks are also called black glass masks. The main function of the black glass in an electric welding mask is to reduce the intensity of the arc light, filter infrared and ultraviolet rays, and protect the welder's eyes from arc burns. It can absorb and filter out most harmful light, allowing only a small amount of safe light to pass through. Different grades of protective glass are suitable for different welding currents and working environments; choosing the appropriate protective glass is crucial to ensuring welder safety. Existing traditional handheld welding masks... The welding mask has a transparent white glass protective layer outside the black glass to protect it from damage. During welding operations, personnel hold the welding mask and need to observe the weld to determine the precise welding position. Because the black glass of the mask has poor light transmission, operators must stop welding and remove the mask from their face to observe the weld. This procedure is dangerous, cumbersome, and can easily injure the operator's eyes, while also reducing on-site welding efficiency. Developing a mask that allows observation of the weld without removing it has become a problem that needs to be solved on-site. Summary of the Invention

[0003] This invention provides a handheld mask for welders, which solves the technical problem of how to develop a method that allows observation of the weld during the welding process without removing the mask.

[0004] This utility model solves the above technical problems through the following technical solution: A handheld welding mask includes a mask with an observation window, a handle at the lower center of the mask, a protective white glass cover inside the observation window, a cavity below the observation window, and a black glass cover movably mounted in the cavity, the black glass cover being positioned inside the protective white glass cover; a spring mounting chamber is provided on the inner side of the handle, a spring is installed in the spring mounting chamber, an L-shaped push rod is connected to the upper end of the spring, and the upper end of the L-shaped push rod is fixedly connected to the inner side of the black glass cover.

[0005] A thumb loop is provided at the lower end of the L-shaped push rod; the spring pushes the black glass cover against the top frame of the observation window through the L-shaped push rod, and the black glass cover completely covers the protective white glass cover.

[0006] This invention is simple to operate and allows for continuous observation of the weld during the welding process, greatly improving welding quality and efficiency. Attached Figure Description

[0007] Figure 1 This is a schematic diagram of the structure of this utility model in a side view; Figure 2 is a structural schematic diagram of this utility model in the front view direction. Detailed Implementation

[0008] The present invention will now be described in detail with reference to the accompanying drawings: A handheld welding mask includes a mask 1, an observation window 2 on the mask 1, a handle 3 at the lower center of the mask 1, a protective white glass cover 4 inside the observation window 2, a cavity 6 below the observation window 2, a black glass cover 5 movably mounted in the cavity 6, and a vertical guide rail for the black glass cover 5 within the cavity 6. The black glass cover 5 is positioned inside the protective white glass cover 4. A spring mounting chamber 7 is located on the inner side of the handle 3, and a spring 8 is installed within the spring mounting chamber 7. An L-shaped push rod 9 is connected to the upper end of the spring 8, and the upper end of the L-shaped push rod 9 is fixedly connected to the inner side of the black glass cover 5. The spring 8 presses the black glass cover 5 against the top frame of the observation window 2, at which point the black glass cover 5 completely covers the protective white glass cover 4, allowing the welder to safely perform welding operations.

[0009] A thumb collar 10 is provided at the lower end of the L-shaped push rod 9; the spring 8 pushes the black glass cover 5 against the upper frame of the observation window 2 through the L-shaped push rod 9, and the black glass cover 5 completely covers the protective white glass cover 4; when it is necessary to observe the weld, after the welder stops the welding operation, he only needs to put his thumb on the thumb collar 10 and press down the L-shaped push rod 9, so that the spring 8 is compressed, and the L-shaped push rod 9 drives the black glass cover 5 to move down into the cavity 6, so that the upper frame of the black glass cover 5 leaves the upper frame of the observation window 2, exposing a section of the protective white glass cover 4. The welder can observe the weld through this section of the window through the protective white glass cover 4. Then, the thumb is released, and the black glass cover 5 is pushed up again against the upper frame of the observation window 2 under the action of the spring, completely covering the protective white glass cover 4, and then the welding operation is carried out again.

Claims

1. A handheld welding mask, comprising a mask (1), an observation window (2) provided on the mask (1), a handle (3) provided at the lower center of the mask (1), and a protective white glass cover (4) provided inside the observation window (2), characterized in that, A cavity (6) is provided in the mask (1) below the observation window (2), and a black glass cover (5) is movably installed in the cavity (6). The black glass cover (5) is located inside the protective white glass cover (4). A spring mounting chamber (7) is provided on the inner side of the handle (3), and a spring (8) is installed in the spring mounting chamber (7). An L-shaped push rod (9) is connected to the upper end of the spring (8), and the upper end of the L-shaped push rod (9) is fixedly connected to the inner side of the black glass cover (5).

2. The handheld face shield for welders according to claim 1, characterized in that, A thumb collar (10) is provided at the lower end of the L-shaped push rod (9); the spring (8) pushes the black glass cover (5) against the top frame of the observation window (2) through the L-shaped push rod (9), and the black glass cover (5) completely covers the protective white glass cover (4).

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