Protective device for welding roof steel structure ceiling of railway station house

Abstract

The utility model belongs to the technical field of protective devices for welding, in particular to a protective device for welding a roof steel structure ceiling of a railway station house, which comprises a protective mask and a bandage, two first abdicating holes are arranged on one side of the protective mask, a support cover is fixedly connected to one side of the protective mask, and a blocking door is hinged to one side of the support cover. Two second receding holes are formed in the blocking door, a supporting inner ring is arranged on one side of the blocking door, and a goggle ring disc is fixedly connected to the side wall of the supporting inner ring; by rotating the ring disc of the goggles to adjust the angle, the unworn area can be rotated to the position aligned with the second abdicating hole and the first abdicating hole, the device does not need to be detached from the head of a worker, the whole lens does not need to be replaced, the device is more convenient and flexible to use during operation, the whole lens is replaced, and the working efficiency is improved. And the operation is simple, and the consumed time is short, so that the switching working efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of welding protection devices, and in particular relates to a welding protection device for a steel structure roof of a railway station building. Background Art

[0002] Railway station buildings are places where passengers wait for trains, buy tickets, consult, rest and enjoy other services. The roofs of railway station buildings can generally be constructed with steel structures, and welding is usually required;

[0003] When welding the steel structure roof of a railway station, protective devices are needed to protect the workers. The welding protective mask is a commonly used protective device during welding. The protective mask with goggles can enable the workers to observe the welding position while reducing the damage to the eyes caused by the strong welding light. The goggles are consumables and need to be replaced frequently to ensure the clarity of the working field. Although the goggles and protective masks are generally detachable, when removing and replacing the goggles, the workers are usually required to remove the entire device from the head, and then remove the goggles and install new lenses. This is inconvenient to use, the operation is complicated and time-consuming, so the efficiency of replacing the goggles needs to be improved. Utility Model Content

[0004] The utility model provides a protective device for welding the steel structure ceiling of a railway station building, which has the characteristic of being easy to replace the goggle lenses of the protective mask.

[0005] The utility model provides the following technical solution: it includes a protective mask and a strap, wherein one side of the protective mask is provided with two first yield holes, one side of the protective mask is fixedly connected to a support cover, one side of the support cover is hinged with a blocking door, the blocking door is provided with two second yield holes, and the two second yield holes correspond to the positions of the two first yield holes one by one, one side of the protective mask is rotatably connected to a first turntable, the inner wall of the blocking door is rotatably connected to a second turntable, one side of the second turntable is fixedly connected to a plug plate, one side of the first turntable is provided with a docking groove, one side of the blocking door is provided with a support inner ring, the side wall of the support inner ring is fixedly connected to a goggles ring disk, the support inner ring is provided with a plug hole, the support inner ring is slidably connected to the side wall of the plug plate through the plug hole, the plug plate is plugged into the inner wall of the docking groove, and the support inner ring is clamped between the second turntable and the first turntable.

[0006] Among them, one end of the plug plate is fixedly connected with a knob, and the knob passes through one side of the blocking door.

[0007] Among them, a torsion spring is arranged between the blocking door and the support cover, a damping layer is arranged between the second turntable and the blocking door, and a damping layer is arranged between the first turntable and the protective mask.

[0008] Among them, one side of the support cover is rotatably connected to a limiting plate, the limiting plate is slidably connected to one side of the blocking door, and the contact surface between the limiting plate and the blocking door is provided with an anti-slip pad.

[0009] Among them, a plurality of contour prompt lines and a plurality of scale prompt lines are arranged on the goggles ring disk, and the plurality of contour prompt lines and the plurality of scale prompt lines correspond to the positions of the second make way hole and the first make way hole.

[0010] The beneficial effects of the utility model are as follows: by rotating the goggles ring disk to adjust the angle, the unworn area can be rotated to a position aligned with the second clearance hole and the first clearance hole, without removing the device from the worker's head and without replacing the entire lens, which makes it more convenient and flexible to use during operation, and overall replacement is simple to operate and takes less time, thereby improving the switching work efficiency.

[0011] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0013] Figure 2 It is a schematic diagram of the three-dimensional structure of the utility model in the open state;

[0014] Figure 3 It is a front view cross-sectional enlarged structural schematic diagram of components such as a support cover and a support inner ring in the utility model;

[0015] Figure 4 for Figure 1 Schematic diagram of the enlarged structure of part A in the middle.

[0016] In the figure: 1. protective mask; 11. strap; 12. first clearance hole; 13. first turntable; 131. docking slot; 2. support cover; 21. blocking door; 211. torsion spring; 22. second clearance hole; 23. second turntable; 24. plug plate; 241. knob; 25. limit plate; 3. support inner ring; 31. goggles ring disk; 32. plug hole; 33. contour prompt line; 34. scale prompt line. DETAILED DESCRIPTION

[0017] See also Figure 1-Figure 4The utility model provides the following technical solutions: including a protective mask 1 and a strap 11, one side of the protective mask 1 is provided with two first clearance holes 12, one side of the protective mask 1 is fixedly connected to a support cover 2, one side of the support cover 2 is hinged with a blocking door 21, the blocking door 21 is provided with two second clearance holes 22, the two second clearance holes 22 correspond to the two first clearance holes 12 in one-to-one position, one side of the protective mask 1 is rotatably connected to a first turntable 13, and the inner wall of the blocking door 21 is rotatably connected to There is a second turntable 23, a plug plate 24 is fixedly connected to one side of the second turntable 23, a docking groove 131 is provided on one side of the first turntable 13, a support inner ring 3 is provided on one side of the blocking door 21, a goggles ring disk 31 is fixedly connected to the side wall of the support inner ring 3, a plug hole 32 is provided on the support inner ring 3, the support inner ring 3 is slidably connected to the side wall of the plug plate 24 through the plug hole 32, the plug plate 24 is plugged into the inner wall of the docking groove 131, and the support inner ring 3 is clamped between the second turntable 23 and the first turntable 13.

[0018] In this embodiment: the protective mask 1 supports the various components of the device, the protective mask 1 is connected and fixed to the head of the staff through the strap 11, the support cover 2 is located on the outside of the protective mask 1, and a storage space for the support inner ring 3 is provided inside the support cover 2. The blocking door 21 blocks the storage space opening of the support cover 2, and the blocking door 21 supports the second rotating disk 23. The second rotating disk 23 supports the plug plate 24, and the plug plate 24 is inserted into the plug hole 32, so that the support cover 2 can support the support through the plug plate 24. The inner ring 3 is supported and driven to rotate, and the first turntable 13 is docked with the plug plate 24 through the docking groove 131. When the inner ring 3 is installed, the blocking door 21 is opened, and then the inner ring 3 is clamped on the plug plate 24, and then the blocking door 21 is closed. The blocking door 21 drives the inner ring 3 to enter the internal space of the support cover 2, so that the support cover 2 and the blocking door 21 can provide external protection for the inner ring 3, and the second turntable 23 and the first turntable 13 clamp the inner ring 3. In order to prevent the problem of friction loss caused by the contact between the protective mask 1 and the support cover 2 when the support inner ring 3 drives the goggles ring disk 31 to rotate, the staff observes the welding of the steel structure ceiling of the railway station house through the first make way hole 12 and the second make way hole 22 through the goggles ring disk 31. When the goggles ring disk 31 and the second make way hole 22 and the first make way hole 12 are aligned, the angle needs to be changed. By controlling the rotation of the plug plate 24, the plug plate 24 drives the support inner ring 3 and the first turntable 13 to rotate synchronously, and the support inner ring 3 and the first turntable 13 are rotated synchronously. The ring 3 drives the goggles ring disk 31 to rotate, so that the unworn area of ​​the goggles ring disk 31 can be rotated to a position aligned with the second clearance hole 22 and the first clearance hole 12. There is no need to remove the device from the worker's head, and there is no need to replace the entire lens. It is more convenient and flexible to use during operation. The overall replacement is simple to operate and takes less time, thereby improving the switching efficiency. After all areas of the goggles ring disk 31 are used, the supporting inner ring 3 and the goggles ring disk 31 are replaced.

[0019] A knob 241 is fixedly connected to one end of the plug plate 24, and the knob 241 passes through one side of the blocking door 21; a section of the knob 241 is located on the outside of the blocking door 21, so that when the staff switches the angle of the goggles ring disk 31, they can drive the plug plate 24 to rotate by directly rotating the knob 241 by hand. The plug plate 24 drives the supporting inner ring 3 and the goggles ring disk 31 to switch the angle, which is easy to operate.

[0020] A torsion spring 211 is arranged between the blocking door 21 and the support cover 2, a damping layer is arranged between the second turntable 23 and the blocking door 21, and a damping layer is arranged between the first turntable 13 and the protective mask 1; the torsion spring 211 drives the blocking door 21 to flip toward the support cover 2, so that the blocking door 21 can squeeze the supporting inner ring 3 through the torsion spring 211, and the two damping layers between the second turntable 23 and the first turntable 13 and the blocking door 21 and the protective mask 1 can increase the relative rotational friction, so that the goggles ring disk 31 can maintain a more stable state during use, avoiding the goggles ring disk 31 from shaking and affecting the line of sight.

[0021] One side of the support cover 2 is rotatably connected to a limit plate 25, and the limit plate 25 is slidably connected to one side of the blocking door 21, and an anti-slip pad is provided on the contact surface between the limit plate 25 and the blocking door 21; after the blocking door 21 drives the new support inner ring 3 to enter the interior of the support cover 2, the limit plate 25 is rotated so that the limit plate 25 can rotate downward, so that the limit plate 25 can limit the blocking door 21 to prevent the blocking door 21 from turning over, thereby improving the stability of the protection of the support inner ring 3 and the goggles ring disk 31, and the anti-slip pad of the limit plate 25 can increase the friction between the limit plate 25 and the blocking door 21 to prevent the limit plate 25 from breaking away from the limit on the blocking door 21.

[0022] A plurality of contour prompt lines 33 and a plurality of scale prompt lines 34 are provided on the goggles ring disk 31, and the plurality of contour prompt lines 33 and the plurality of scale prompt lines 34 all correspond to the positions of the second make way hole 22 and the first make way hole 12; the plurality of second contour prompt lines 33 and the plurality of scale prompt lines 34 divide and indicate the areas of the goggles ring disk 31, so that when the goggles ring disk 31 is rotated and adjusted, the goggles ring disk 31 uses different contour prompt lines 33 and scale prompt lines 34 to align with the second make way hole 22 and the first make way hole 12, which is convenient to use.

[0023] The working principle and use process of the utility model are as follows: when the device is used, the blocking door 21 is opened, and the supporting inner ring 3 is inserted into the plug plate 24, and then the torsion spring 211 drives the blocking door 21 to flip, and the blocking door 21 drives the supporting inner ring 3 to enter the inside of the support cover 2, and the second turntable 23 and the first turntable 13 clamp the supporting inner ring 3, and then the limit plate 25 is rotated, and the limit plate 25 can limit the blocking door 21 to prevent the blocking door 21 from turning outward, thereby improving the stability of the protection of the supporting inner ring 3 and the goggles ring plate 31, and then the device is tied to the head of the staff through the strap 11. When the contour prompt line 33 aligned with the second make way hole 22 is worn out after use, the knob 241 is rotated, and the knob 2 41 drives the plug plate 24 to rotate, the plug plate 24 drives the second turntable 23, the first turntable 13 and the supporting inner ring 3 to rotate, the supporting inner ring 3 drives the goggles ring disk 31 to rotate, and the contour prompt line 33 and the scale prompt line 34 are used to indicate that the contour prompt line 33 areas of the other two can be rotated to align with the second clearance hole 22 and the first clearance hole 12. There is no need to remove the device from the head of the staff, and there is no need to replace the entire lens. It is more convenient and flexible to use during operation, and the overall replacement is simple to operate and takes less time, thereby improving the switching work efficiency. When all the contour prompt line 33 areas of the goggles ring disk 31 are worn out, the supporting inner ring 3 and the goggles ring disk 31 are replaced.

Claims

1. A protective device for welding a steel structure roof of a railway station, comprising a protective mask (1) and a binding belt (11), characterized in that: The protective mask (1) is provided with two first clearance holes (12) on one side, the protective mask (1) is fixedly connected to a support cover (2) on one side, a blocking door (21) is hingedly connected to one side of the support cover (2), the blocking door (21) is provided with two second clearance holes (22), the two second clearance holes (22) correspond to the two first clearance holes (12) in one-to-one position, the protective mask (1) is rotatably connected to a first rotating disk (13), the inner wall of the blocking door (21) is rotatably connected to a second rotating disk (23), and one side of the second rotating disk (23) is fixedly connected to the support cover (2). A plug plate (24) is connected, a docking groove (131) is provided on one side of the first rotating disk (13), a supporting inner ring (3) is provided on one side of the blocking door (21), a goggles ring disk (31) is fixedly connected to the side wall of the supporting inner ring (3), a plug hole (32) is provided on the supporting inner ring (3), the supporting inner ring (3) is slidably connected to the side wall of the plug plate (24) through the plug hole (32), the plug plate (24) is plugged into the inner wall of the docking groove (131), and the supporting inner ring (3) is clamped between the second rotating disk (23) and the first rotating disk (13).

2. A protective device for welding the steel structure ceiling of a railway station building according to claim 1, characterized in that: One end of the plug plate (24) is fixedly connected to a knob (241), and the knob (241) passes through one side of the blocking door (21).

3. The protective device for welding the steel structure ceiling of a railway station building according to claim 1, characterized in that: A torsion spring (211) is provided between the blocking door (21) and the support cover (2), a damping layer is provided between the second rotating disk (23) and the blocking door (21), and a damping layer is provided between the first rotating disk (13) and the protective mask (1).

4. The protective device for welding the steel structure ceiling of a railway station building according to claim 1, characterized in that: One side of the support cover (2) is rotatably connected to a limiting plate (25), and the limiting plate (25) is slidably connected to one side of the blocking door (21), and a non-slip pad is provided on the contact surface between the limiting plate (25) and the blocking door (21).

5. The protective device for welding the steel structure ceiling of a railway station building according to claim 1, characterized in that: The goggle ring disk (31) is provided with a plurality of contour prompt lines (33) and a plurality of scale prompt lines (34), and the plurality of contour prompt lines (33) and the plurality of scale prompt lines (34) correspond to the positions of the second clearance hole (22) and the first clearance hole (12).

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