Pipe welding shield

Abstract

The utility model relates to welding protection equipment technical field, concretely discloses a pipeline welding protection device, including protective face guard, lens mounting seat, goggles and reset structure, the fixed groove is established to the protective face guard outer surface, the lens mounting seat is fixedly connected in the fixed groove outside protective face guard outer surface, the one side of lens mounting seat is equipped with the observation window, the one side of observation window is provided with goggles, and one end of goggles is provided with reset structure, and the first fixed band and second fixed band are fixedly connected to the back of protective face guard, and the limiting band is arranged on the top of first fixed band and second fixed band, through being provided with first fixed band, second fixed band and limiting band, through first fixed band, second fixed band and limiting band, the protective face guard is stably fixed in the head, and the user can hold the welding torch with both hands and carry out pipeline welding, and it is convenient for accurate control welding torch angle and strength, effectively reduces the risk of welding deviation, and the welding quality is improved.

Description

Technical Field

[0001] This utility model relates to the field of welding protection equipment technology, and in particular to a pipeline welding protection device. Background Technology

[0002] In pipeline welding operations, the sparks, high-temperature particles, strong light, and harmful rays such as ultraviolet and infrared rays generated during the welding process pose a great threat to the face and eyes of operators. Protective devices are essential equipment for the operation. Currently, most protective face shields are handheld, which has significant drawbacks: operators need to hold the shield with one hand and can only hold the welding gun with one hand for welding. Pipe welding often involves circumferential welds, narrow space operations, or multi-angle welding. Single-handed operation makes it difficult to accurately control the angle and force of the welding gun, which can easily affect the welding quality and even increase the risk of weld deviation and missed welds. Holding the shield for a long time can cause arm fatigue, making the shield position unstable and potentially creating gaps in protection, leading to exposure of the face or eyes to harmful environments and increasing the risk of burns and punctures. Handheld shields also lack convenient lens adjustment structures. When it is necessary to temporarily observe the weld joint, the shield must be lowered, which interferes with the welding continuity and reduces work efficiency. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a pipeline welding protection device.

[0004] The pipe welding protective device provided by this utility model includes: a protective mask, a lens mounting base, a protective lens, and a reset structure. The outer surface of the protective mask has a fixing groove, and the lens mounting base is fixedly connected inside the fixing groove. An observation window is provided on one side of the lens mounting base, and a protective lens is provided on one side of the observation window. A reset structure is provided at one end of the protective lens. The reset structure includes a mounting plate, a gear, and a worm spring. One side of the mounting plate is fixedly connected to the outer surface of the lens mounting base. A rotating cavity is provided inside the mounting plate, and a gear is rotatably connected inside the rotating cavity. A through hole is provided in the middle of the gear, and a worm spring is provided inside the through hole in the middle of the gear. A first fixing strap and a second fixing strap are fixedly connected to the back of the protective mask, and a limit strap is provided above the first fixing strap and the second fixing strap.

[0005] Preferably, a set of fixing rods are fixedly connected to both ends of the lens mounting base, a sleeve is fixedly connected to the lower surface of the lens mounting base, a limit block is slidably connected inside the sleeve, the upper end of the limit block extends through the sleeve to the outer surface of the sleeve, the side of the limit block away from the lens mounting base is rounded, a spring is fixedly connected to the lower end of the limit block, and the lower end of the spring is fixedly connected to the bottom of the sleeve.

[0006] Preferably, a fixing ring is fixedly connected to one end of the goggles, and a half gear is fixedly connected to the other end of the goggles. A through hole is opened in the middle of the half gear, and the fixing ring and the half gear are rotatably connected to the outer surfaces of two sets of fixing rods respectively.

[0007] Preferably, a rotating groove is provided at one corner of the mounting plate, and the rotating groove at one corner of the mounting plate is connected to the rotating cavity inside the mounting plate. The half gear is rotatably disposed inside the rotating groove at one corner of the mounting plate. A connecting rod is fixedly connected to the inner wall of the rotating cavity inside the mounting plate. The inner end of the worm spring is fixedly connected to the outer surface of the connecting rod, and the outer end of the worm spring is fixedly connected to the inner wall of the gear through hole. The gear and the half gear mesh with each other.

[0008] Preferably, the lower end of the sleeve has a through hole that communicates with the inside of the sleeve. A pull rod is movably installed inside the through hole at the lower end of the sleeve. The lower end of the pull rod passes through the through hole at the lower end of the sleeve and extends to the lower surface of the sleeve. The upper end of the pull rod is fixedly connected to the lower end of the limiting block, and a spring is sleeved on the outer surface of the pull rod.

[0009] Preferably, a mushroom-shaped pin is fixedly connected to the side surface of the first fixing strap away from the protective mask.

[0010] Preferably, a limiting groove is provided at the end of the second fixing strap away from the protective mask, and a plurality of adjustment holes are provided on the second fixing side surface.

[0011] Preferably, the limiting band has movable grooves at both ends, and the movable grooves at both ends of the limiting band are respectively sleeved on the outer surfaces of the first fixed band and the second fixed band.

[0012] Compared with related technologies, the pipe welding protection device provided by this utility model has the following beneficial effects: 1. Equipped with a first fixing strap, a second fixing strap, and a limiting strap, the protective mask is stably fixed to the head. Users can hold the welding gun with both hands for pipe welding, facilitating precise control of the welding gun angle and force. It is suitable for pipe circumferential welds, narrow spaces, and multi-angle welding scenarios, effectively reducing the risk of weld deviation and missed welds, improving welding quality. It can firmly fit the head, preventing the mask from shifting due to fatigue when holding it, ensuring that the protective mask always covers the key areas of the face, continuously blocking sparks, high-temperature particles, and spatter generated by pipe welding, and reducing the risk of accidental injury.

[0013] 2. By setting up a lens mounting base, a protective lens, and a reset structure, the protective lens is automatically reset through the linkage of half gear, gear, and worm spring. After observing the pipeline welding point, the user can press the protective lens to quickly restore the protective state. The cooperation of the pull rod and the limit block can open the lens with one click, allowing temporary observation of the welding joint without removing the mask, reducing operation interruption, meeting the needs of frequently switching between observation and protection states in pipeline welding, and improving work efficiency. Attached Figure Description

[0014] Figure 1 A schematic diagram of a preferred embodiment of the pipe welding protection device provided by this utility model; Figure 2 This is a structural schematic diagram from another perspective of the present invention; Figure 3 This is an exploded structural diagram of the lens mounting base, protective lens, reset structure, and rotating cavity inside the mounting plate of this utility model. Figure 4 This is a schematic diagram of the internal structure of the sleeve of this utility model.

[0015] The following are the labels in the diagram: 1. Protective face shield; 2. Lens mounting base; 3. Goggles; 4. Reset structure; 5. Mounting plate; 6. Gear; 7. Waist spring; 8. First fixing strap; 9. Second fixing strap; 10. Limiting strap; 11. Fixing rod; 12. Sleeve; 13. Limiting block; 14. Spring; 15. Fixing ring; 16. Half gear; 17. Connecting rod; 18. Pull rod; 19. Mushroom nail. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Please refer to the following: Figure 1 , Figure 2 , Figure 3 and Figure 4 The system includes: a protective face shield 1, a lens mounting base 2, a protective lens 3, and a reset structure 4. The outer surface of the protective face shield 1 has a fixing groove, and the lens mounting base 2 is fixedly connected inside the fixing groove. The protective face shield 1 protects the user's face from sparks, spatter, high-temperature particles, etc., generated during the welding process. An observation window is provided on one side of the lens mounting base 2, and the protective lens 3 is mounted on the other side of the observation window. The lens mounting base 2 serves as the mounting carrier for the protective lens 3. The protective lens 3 filters harmful rays such as strong light, ultraviolet rays, and infrared rays generated during welding, preventing eye burns or damage. A reset structure 4 is provided at one end of the protective lens 3, which is used to reset the protective lens 3. 4 includes a mounting plate 5, a gear 6, and a worm spring 7. The mounting plate 5 is fixedly connected to the outer surface of the lens mounting base 2 on one side. The mounting plate 5 has a rotating cavity inside, and the gear 6 is rotatably connected inside the rotating cavity. The gear 6 has a through hole in the middle, and the worm spring 7 is installed inside the through hole in the middle of the gear 6. When the gear 6 rotates, it will drive the worm spring 7 to contract, so that the worm spring 7 generates elastic force. When the gear 6 loses its limit position, the elastic force generated by the worm spring 7 will cause the gear 6 to reset. The back of the protective mask 1 is fixedly connected to a first fixing strap 8 and a second fixing strap 9. A limit strap 10 is provided above the first fixing strap 8 and the second fixing strap 9. The first fixing strap 8, the second fixing strap 9, and the limit strap 10 are all made of silicone.

[0018] In the specific implementation process, a fixing rod 11 is fixedly connected to each end of the lens mounting base 2. A sleeve 12 is fixedly connected to the lower surface of the lens mounting base 2. A limiting block 13 is slidably connected inside the sleeve 12. The upper end of the limiting block 13 extends through the sleeve 12 to the outer surface of the sleeve 12. The side of the limiting block 13 away from the lens mounting base 2 has a rounded corner. The rounded corner on the side of the limiting block 13 facilitates the pressure of the protective lens 3 on the limiting block 13. A spring 14 is fixedly connected to the lower end of the limiting block 13. When the limiting block 13 is pressed by the protective lens 3 and is attached to the bottom of the sleeve 12, it enters the sleeve 12. When the limiting block 13 enters the sleeve 12, it presses the spring 14. The spring 14 is compressed and generates elastic force. When the protective lens 3 passes the limiting block 13, the limiting block 13 loses its compression. Under the elastic force of the spring 14, the limiting block 13 returns to its original position. At this time, the protective lens 3 is attached to the observation window on one side of the lens mounting base 2 under the restriction of the limiting block 13.

[0019] One end of the protective lens 3 is fixedly connected to a fixing ring 15, and the other end of the protective lens 3 is fixedly connected to a half gear 16. The half gear 16 has a through hole in the middle. The fixing ring 15 and the half gear 16 are respectively rotatably connected to the outer surfaces of two fixing rods 11. The fixing rods 11 at both ends of the lens mounting base 2 are used to rotatably connect the fixing ring 15 and the half gear 16 of the protective lens 3. When the user rotates the protective lens 3, the fixing rods 11 at both ends of the lens mounting base 2 provide a fulcrum for the rotation of the protective lens 3.

[0020] The mounting plate 5 has a rotating groove at one corner, which is connected to the rotating cavity inside the mounting plate 5. The half gear 16 is rotatably set inside the rotating groove at one corner of the mounting plate 5. A connecting rod 17 is fixedly connected to the inner wall of the rotating cavity inside the mounting plate 5. The inner end of the worm spring 7 is fixedly connected to the outer surface of the connecting rod 17. The connecting rod 17 is used to fix the worm spring 7. The outer end of the worm spring 7 is fixedly connected to the inner wall of the through hole of the gear 6. The gear 6 and the half gear 16 mesh with each other. When the user rotates the goggles 3, the half gear 16 meshes with the gear 6 and drives the gear 6 to rotate as the goggles 3 rotates. When the gear 6 rotates, it causes the worm spring 7 to contract.

[0021] The sleeve 12 has a through hole at its lower end, which is connected to the interior of the sleeve 12. A pull rod 18 is movably installed inside the through hole at the lower end of the sleeve 12. The lower end of the pull rod 18 extends through the through hole at the lower end of the sleeve 12 to the lower surface of the sleeve 12. The upper end of the pull rod 18 is fixedly connected to the lower end of the limiting block 13. A spring 14 is sleeved on the outer surface of the pull rod 18. When it is necessary to open the goggles 3 for observation, the user pulls the pull rod 18, causing the limiting block 13 to enter the interior of the sleeve 12. When the limiting block 13 enters the interior of the sleeve 12, it squeezes the spring 14 again. The spring 14 is compressed and generates elastic force, and the goggles 3 loses the limiting effect of the limiting block 13. As a result, the gear 6 loses its restriction and rotates and resets under the elastic force of the worm spring 7. At this time, the gear 6 meshes and drives the half gear 16 to rotate, so that the goggles 3 is away from the observation window on the side of the lens mounting base 2, allowing the observation window on the side of the mounting base to clearly observe the pipe welding area.

[0022] The first fixing strap 8 has a mushroom-shaped pin 19 fixedly connected to the side surface away from the protective mask 1. The second fixing strap 9 has a limiting groove at the end away from the protective mask 1, and several adjustment holes are formed on the side surface of the second fixing strap. The user inserts one end of the first fixing strap 8 into the limiting groove at one end of the second fixing strap 9, selects an adjustment hole at a suitable position on the side surface of the second fixing strap 9, and inserts the mushroom-shaped pin 19 into the adjustment hole at the appropriate position. Due to the elasticity of the silicone, the adjustment hole is squeezed when the mushroom-shaped pin 19 is inserted, making the adjustment hole expand to facilitate the passage of the mushroom-shaped pin 19. After the mushroom-shaped pin 19 passes through the adjustment hole, the adjustment hole contracts and returns to its original position under the elasticity of the silicone. The larger head of the mushroom-shaped pin 19 can... To prevent the mushroom-shaped anchor 19 from coming out of the adjustment hole, when it is necessary to adjust the tightness of the first fixing strap 8 and the second fixing strap 9 or to remove the protective mask 1, the user only needs to pull the mushroom-shaped anchor 19 out of the adjustment hole. Under the action of external force, the mushroom squeezes the adjustment hole, making the adjustment hole expand so that the mushroom-shaped anchor 19 can pass through. Both ends of the limiting strap 10 are provided with movable grooves. The movable grooves at both ends of the limiting strap 10 are respectively fitted onto the outer surfaces of the first fixing strap 8 and the second fixing strap 9. The limiting strap 10 can slide on the outer surfaces of the first fixing strap 8 and the second fixing strap 9 through the movable grooves at both ends, so as to facilitate the adjustment of the position of the limiting strap 10 at the top of the head. The limiting strap 10 prevents the protective mask 1 from slipping off the user's face.

[0023] The working principle of this utility model is as follows: When using the device, the user first fixes it to the head using the first fixing strap 8 and the second fixing strap 9. Specifically, the end of the first fixing strap 8 away from the protective face shield 1 is inserted into the limiting groove of the second fixing strap 9. The adjustment hole at a suitable position on the side surface of the second fixing strap 9 is selected, and the mushroom-shaped pin 19 of the first fixing strap 8 is inserted into the adjustment hole. Because the first fixing strap 8 and the second fixing strap 9 are made of elastic silicone, the mushroom-shaped pin 19 will squeeze the adjustment hole to expand it for insertion. After insertion, the adjustment hole will contract and return to its original position under the elasticity of the silicone. The larger head of the mushroom-shaped pin 19 prevents it from coming out of the adjustment hole. Simultaneously, the limiting strap 10, through its movable grooves at both ends, fits between the first fixing strap 8 and the second fixing strap 9. The outer surface of the fixed strap 9 is slid to a suitable position on the top of the head to prevent the protective mask 1 from slipping off the face; during welding operations, the goggle lens 3 is rotatably connected to the fixed rods 11 at both ends of the lens mounting base 2 via the fixed ring 15 and the half gear 16 respectively. When the user needs to rotate the goggle lens 3, rotating the goggle lens 3 will drive the fixed ring 15 and the half gear 16 to rotate around the fixed rod 11. During the rotation, the half gear 16 will enter the rotating groove of the mounting plate 5 and mesh with the gear 6 in the rotating cavity of the mounting plate 5, thereby driving the gear 6 to rotate. When the gear 6 rotates, the worm spring 7 in its through hole will contract and generate elastic force. At the same time, the rotation of the goggle lens 3 will squeeze the limiting block 13 in the sleeve 12 on the lower surface of the lens mounting base 2, limiting the movement. The rounded corner design of block 13 on the side away from lens mounting base 2 allows it to be easily squeezed by the protective lens 3. After being squeezed, the limiting block 13 enters the sleeve 12 and squeezes the lower spring 14. The spring 14 is compressed and generates elastic force. When the protective lens 3 rotates past the limiting block 13, the limiting block 13 loses its compression and returns to its original position under the elastic force of the spring 14. At this time, the protective lens 3 is restricted by the limiting block 13 and fits against the observation window of the lens mounting base 2, thus protecting the eyes. When it is necessary to open the protective lens 3 to observe the pipe welding area, the user pulls the pull rod 18 at the lower end of the sleeve 12. The pull rod 18 drives the limiting block 13 to move downward and enter the sleeve 12. The limiting block 13 squeezes the spring 14 again to compress it. At this time, the protective lens 3... With the limit block 13 no longer restricting it, gear 6 also loses its restriction. Under the elastic force generated by the worm spring 7, gear 6 begins to rotate and reset. The rotation of gear 6 will mesh and drive half gear 16 to rotate. Half gear 16 will then drive the goggle lens 3 to rotate around the fixing rod 11, so that the goggle lens 3 moves away from the observation window of the lens mounting seat 2, allowing the observation window to be exposed for clear observation of the pipe welding joint. After the observation is completed, the goggle lens 3 is released. Under the action of the reset structure 4 such as the worm spring 7, the goggle lens 3 can reset and fit against the observation window again. If it is necessary to adjust the tightness of the first fixing strap 8 and the second fixing strap 9 or remove the protective mask 1, simply pull the mushroom nail 19 out of the adjustment hole. Under the action of external force, the adjustment hole expands to facilitate the passage of the mushroom nail 19, thus realizing adjustment or disassembly.

[0024] The circuits and controls involved in this utility model are all existing technologies and will not be described in detail here.

[0025] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A pipe welding protective device, comprising a protective face shield (1), a lens mounting base (2), protective lenses (3), and a reset structure (4), characterized in that, The protective mask (1) has a fixing groove on its outer surface. A lens mounting base (2) is fixedly connected inside the fixing groove on the outer surface of the protective mask (1). An observation window is provided on one side of the lens mounting base (2). A protective lens (3) is provided on one side of the observation window. A reset structure (4) is provided at one end of the protective lens (3). The reset structure (4) includes a mounting plate (5), a gear (6), and a worm spring (7). One side of the mounting plate (5) is fixedly connected to the outer surface of the lens mounting base (2). A rotating cavity is provided inside the mounting plate (5). A gear (6) is rotatably connected inside the rotating cavity. A through hole is provided in the middle of the gear (6). A worm spring (7) is provided inside the through hole in the middle of the gear (6). A first fixing strap (8) and a second fixing strap (9) are fixedly connected to the back of the protective mask (1). A limit strap (10) is provided above the first fixing strap (8) and the second fixing strap (9).

2. The pipeline welding protection device according to claim 1, characterized in that, A fixing rod (11) is fixedly connected to each end of the lens mounting base (2). A sleeve (12) is fixedly connected to the lower surface of the lens mounting base (2). A limit block (13) is slidably connected inside the sleeve (12). The upper end of the limit block (13) extends through the sleeve (12) to the outer surface of the sleeve (12). The side of the limit block (13) away from the lens mounting base (2) is rounded. A spring (14) is fixedly connected to the lower end of the limit block (13). The lower end of the spring (14) is fixedly connected to the bottom of the sleeve (12).

3. The pipeline welding protection device according to claim 1, characterized in that, One end of the goggle lens (3) is fixedly connected to a fixing ring (15), and the other end of the goggle lens (3) is fixedly connected to a half gear (16). A through hole is opened in the middle of the half gear (16), and the fixing ring (15) and the half gear (16) are respectively rotatably connected to the outer surface of the two fixing rods (11).

4. The pipeline welding protection device according to claim 1, characterized in that, A rotating groove is provided at one corner of the mounting plate (5). The rotating groove at one corner of the mounting plate (5) is connected to the rotating cavity inside the mounting plate (5). The half gear (16) is rotatably set inside the rotating groove at one corner of the mounting plate (5). A connecting rod (17) is fixedly connected to the inner wall of the rotating cavity inside the mounting plate (5). The inner end of the worm spring (7) is fixedly connected to the outer surface of the connecting rod (17). The outer end of the worm spring (7) is fixedly connected to the inner wall of the through hole of the gear (6). The gear (6) and the half gear (16) mesh with each other.

5. The pipeline welding protection device according to claim 2, characterized in that, The lower end of the sleeve (12) is provided with a through hole, which is connected to the inside of the sleeve (12). A pull rod (18) is movably installed inside the lower end of the through hole of the sleeve (12). The lower end of the pull rod (18) passes through the lower end of the through hole of the sleeve (12) and extends to the lower surface of the sleeve (12). The upper end of the pull rod (18) is fixedly connected to the lower end of the limiting block (13). A spring (14) is sleeved on the outer surface of the pull rod (18).

6. The pipeline welding protection device according to claim 1, characterized in that, The first fixing strap (8) is fixedly connected to a mushroom nail (19) on the side surface away from the protective mask (1).

7. The pipeline welding protection device according to claim 1, characterized in that, The second fixing strap (9) has a limiting groove at the end away from the protective mask (1), and several adjustment holes are provided on the second fixing side surface.

8. The pipeline welding protection device according to claim 1, characterized in that, The limiting band (10) has movable grooves at both ends, and the movable grooves at both ends of the limiting band (10) are respectively fitted onto the outer surfaces of the first fixed band (8) and the second fixed band (9).

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