Protective device for welding steel pipes

Abstract

This utility model relates to the field of steel pipe welding protective gear technology, and in particular to a protective device for steel pipe welding, including a head cap, a brim plate fixedly connected to the front end of the head cap, a protective face shield assembly fixedly connected to the bottom end of the brim plate, a rotating protective mechanism installed inside the protective face shield assembly, and a grooved cover plate fixed to the back of the protective face shield assembly by bolts; the protective face shield assembly includes a face shield body, an adjusting shaft rotatably connected to the bottom of the inner side of the face shield body, a half gear fixedly connected to one end of the adjusting shaft, a support spring rotatably connected to the middle of the inner side of the adjusting shaft, and a connecting mechanism fixedly connected to the center of the inner side of the face shield body. This utility model significantly improves the clarity of vision and ease of operation during the welding process, can quickly restore a clear field of vision, and has high angle adjustment accuracy, avoiding the tedious process of traditional on-site cleaning and wiping, and greatly improving the overall efficiency of welding work.

Description

Technical Field

[0001] This utility model relates to the field of steel pipe welding protective equipment technology, specifically a protective device for steel pipe welding. Background Technology

[0002] Protective devices for steel pipe welding are key equipment to ensure the safety of welders and the quality of welding. They are centered around a protective mask. The mask body is made of high-strength, impact-resistant materials, which can effectively block the slag and intense arc light that fly during the welding process, protecting the welder's face from injury. The top of the protective mask is equipped with an observation slot, which makes it easy for the welder to observe the welding process.

[0003] During steel pipe welding operations, existing protective masks have a significant problem: welding slag easily adheres to the surface of the goggles. Once the slag adheres, it will seriously affect the welder's vision, thereby negatively impacting the accuracy and efficiency of the welding work.

[0004] Currently, when welding slag adheres to goggles, the usual solution is for welders to clean and wipe the goggles on-site. However, this process is extremely time-consuming, significantly reducing the overall efficiency of welding work. Furthermore, due to the complex welding environment, on-site cleaning is difficult to be thorough, often leaving some welding slag that interferes with the welder's vision and affects the welding quality. Therefore, a protective device for steel pipe welding is proposed to address the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a protective device for steel pipe welding, so as to solve the problem that when welding slag adheres to the goggles, the usual solution is for the welder to clean and wipe the goggles on site. However, this process is extremely time-consuming, which greatly reduces the overall efficiency of the welding work. Moreover, due to the complex welding environment, it is difficult to clean the goggles thoroughly on site, and some welding slag often remains, which interferes with the welder's vision and affects the welding quality.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A protective device for steel pipe welding includes a headgear, a brim plate fixedly connected to the front end of the headgear, a protective face shield assembly fixedly connected to the bottom end of the brim plate, a rotating protective mechanism installed inside the protective face shield assembly, and a grooved cover plate fixed to the back of the protective face shield assembly by bolts; the protective face shield assembly includes a face shield body, an adjusting shaft rotatably connected to the bottom of the inner side of the face shield body, a half gear fixedly connected to one end of the adjusting shaft, a support spring rotatably connected to the middle of the inner side of the adjusting shaft, and a connecting mechanism fixedly connected to the center of the inner side of the face shield body; the rotating protective mechanism includes a damping bearing, a retainer fixedly connected to the outer side of the damping bearing, a circular protective disc held in place on the outer side of the retainer, and a gear ring fixedly connected to the outer side of the circular protective disc; the adjusting shaft is located below the gear ring, the gear ring meshes with the adjusting shaft, and the damping bearing is sleeved on the outer side of the connecting mechanism.

[0008] As a further optimization of this utility model, the connecting mechanism includes a connecting seat, and an adjustment cavity is provided at the top and bottom of the front end of the connecting seat. Two return springs are fixedly connected to the inner side of the adjustment cavity. A limit block is fixedly connected to the front end of the return spring. The top of the front end of the limit block is an inclined structure. Dovetail blocks are fixedly connected to both sides of the limit block. The dovetail blocks are slidably connected to the inner side of the adjustment cavity.

[0009] As a further optimization of this utility model, a collection plate is fixedly connected to the bottom of the inner side of the mask body. The collection plate is parallel to the mask body. An oil-absorbing sponge is embedded in the inner side of the collection plate, and the oil-absorbing sponge is located below the half gear.

[0010] As a further optimization of this utility model, there is a gap between the inner side of the support spring and the outer side of the connecting seat, the support spring and the circular protective disc are located on the same central axis, and the front end of the support spring is in contact with the outer side of the circular protective disc.

[0011] As a further optimization of this utility model, the other end of the adjusting shaft is fixedly connected to an anti-slip wheel, the anti-slip wheel and the half gear are located on the same central axis, the rear end of the anti-slip wheel is rotatably fitted with a dustproof rubber pad, and the dustproof rubber pad is bonded and fixed to the mask body.

[0012] As a further optimization of this utility model, the mask body has arc-shaped structures on both sides, the mask body and the grooved cover plate are corresponding front and back, and the circular protective disc is located between the mask body and the grooved cover plate.

[0013] As a further optimization of this utility model, a dust cover is installed on the outer side of the anti-slip wheel, the dust cover has a hollow structure inside, and the dust cover is bonded and fixed to the front end face of the mask body.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This invention significantly improves visibility and ease of operation during welding by incorporating a protective face shield assembly, a connecting mechanism, and a rotating protective mechanism. The circular protective disc in the rotating protective mechanism can rotate intermittently through the meshing of a half-gear and a gear ring, quickly restoring a clear field of vision. Furthermore, the high precision of angle adjustment eliminates the tedious process of traditional on-site cleaning and significantly improves the overall efficiency of welding work. Simultaneously, the internal design of the oil-absorbing sponge and supporting springs ensures the stability and durability of the rotating protective mechanism, reducing wear and failure rates and further extending its service life. Overall, this protective device provides an efficient, convenient, and safe protection solution for steel pipe welding. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the overall rear structure of this utility model;

[0018] Figure 3 This is an exploded structural diagram of the protective face shield assembly of this utility model;

[0019] Figure 4 This utility model Figure 3 A schematic diagram of the structure at point A;

[0020] Figure 5 This is a schematic diagram of the back structure of the face mask body of this utility model;

[0021] Figure 6 This is a schematic diagram of the connecting mechanism of this utility model;

[0022] Figure 7 This is a schematic diagram of the explosion structure of the rotating protective mechanism of this utility model;

[0023] Figure 8 This is an exploded view of the front of the mask body of this utility model.

[0024] In the picture: 1. Headgear;

[0025] 2. Hat brim;

[0026] 3. Protective face mask assembly; 31. Face mask body; 32. Adjusting shaft; 33. Half gear; 34. Collection plate; 35. Oil-absorbing sponge; 36. Support spring; 37. Connecting mechanism; 38. Anti-slip wheel;

[0027] 371. Connecting seat; 372. Adjusting cavity; 373. Return spring; 374. Limiting wedge block; 375. Dovetail block;

[0028] 4. Rotational protection mechanism; 41. Damping bearing; 42. Card holder; 43. Circular protective disc; 44. Gear ring;

[0029] 5. Grooved cover plate; 6. Dust cover; 7. Dustproof rubber pad. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0032] Please see Figure 1-8 This utility model provides a technical solution:

[0033] A protective device for steel pipe welding includes a helmet 1, with a brim plate 2 fixedly connected to the front end of the helmet 1, and a protective face shield assembly 3 fixedly connected to the bottom end of the brim plate 2. A rotating protective mechanism 4 is installed inside the protective face shield assembly 3, and a grooved cover plate 5 is bolted to the back of the protective face shield assembly 3. The protective face shield assembly 3 includes a face shield body 31, with arc-shaped structures on both sides. The face shield body 31 corresponds to the grooved cover plate 5 front to back. An adjusting shaft 32 is rotatably connected to the bottom inner side of the face shield body 31, and a half-gear 33 is fixedly connected to one end of the adjusting shaft 32. A support spring 36 is rotatably connected to the middle of the inner side of the mask body 31, and a connecting mechanism 37 is fixedly connected to the center of the inner side of the mask body 31; the rotating protection mechanism 4 includes a damping bearing 41, a retainer 42 is fixedly connected to the outer side of the damping bearing 41, a circular protective disc 43 is clamped on the outer side of the retainer 42, the circular protective disc 43 is located between the mask body 31 and the grooved cover plate 5, and a toothed ring 44 is fixedly connected to the outer side of the circular protective disc 43; the adjusting shaft 32 is located below the toothed ring 44, and the toothed ring 44 is meshed with the adjusting shaft 32, and the damping bearing 41 is sleeved on the outer side of the connecting mechanism 37.

[0034] As a further implementation of this solution, the connecting mechanism 37 includes a connecting seat 371. The top and bottom of the front end of the connecting seat 371 are provided with adjustment cavities 372. Two return springs 373 are fixedly connected to the inner side of the adjustment cavity 372. The front end of the return spring 373 is fixedly connected to a limiting inclined block 374. The top of the front end of the limiting inclined block 374 is an inclined structure. Dovetail blocks 375 are fixedly connected to both sides of the limiting inclined block 374. The dovetail blocks 375 are slidably connected to the inner side of the adjustment cavity 372. This design effectively prevents the limiting inclined block 374 from accidentally separating from the connecting seat 371 during movement, ensuring the stability and reliability of the entire connecting mechanism 37 during operation.

[0035] As a further implementation of this solution, a collection plate 34 is fixedly connected to the bottom of the inner side of the mask body 31. The collection plate 34 is parallel to the mask body 31. An oil-absorbing sponge 35 for absorbing lubricating oil is embedded in the inner side of the collection plate 34. The oil-absorbing sponge 35 is located below the half gear 33. During the rotation of the half gear 33, its teeth will fully contact the oil-absorbing sponge 35 below for absorbing lubricating oil with each rotation. In this way, the lubricating oil will adhere to the teeth of the half gear 33. When the half gear 33 meshes with the gear ring 44, it can ensure a good meshing effect between the two, reduce wear, and at the same time ensure the effectiveness of the angle adjustment of the gear ring 44, and improve the working performance of the rotation protection mechanism 4.

[0036] As a further implementation of this solution, there is a gap between the inner side of the support spring 36 and the outer side of the connecting seat 371. The support spring 36 and the circular protective disc 43 are located on the same central axis. The front end of the support spring 36 is in contact with the outer side of the circular protective disc 43. The support spring 36 can provide a certain support force for the circular protective disc 43, ensuring the stability of the circular protective disc 43 when rotating and preventing it from shaking or deviating, thereby ensuring the normal operation of the entire rotating protective mechanism 4. At the same time, when the circular protective disc 43 needs to be disassembled, the limiting wedge block 374 no longer limits the circular protective disc 43. The elastic force of the support spring 36 can push the circular protective disc 43 to move up quickly and separate from the connecting seat 371, achieving the purpose of quick disassembly.

[0037] As a further implementation of this solution, the other end of the adjusting shaft 32 is fixedly connected to an anti-slip wheel 38. The anti-slip wheel 38 and the half gear 33 are located on the same central axis. The rear end of the anti-slip wheel 38 is rotatably fitted with a dustproof rubber pad 7. The dustproof rubber pad 7 is bonded and fixed to the mask body 31. The dustproof rubber pad 7 can effectively prevent dust and other impurities during the welding process from entering the rotating parts of the adjusting shaft 32, protect the adjusting shaft 32, ensure its rotation effect, extend its service life, and thus ensure the stable operation of the entire protective device.

[0038] As a further implementation of this solution, a dust cover 6 is installed on the outside of the anti-slip wheel 38. The dust cover 6 has a hollow structure inside. The dust cover 6 is bonded and fixed to the front end of the mask body 31. The dust cover 6 can effectively block dust, protect the adjusting shaft 32 and the anti-slip wheel 38, reduce the wear and impact caused by dust, and ensure the cleanliness and normal working performance of the relevant components of the protective device.

[0039] Workflow: During installation, remove the bolts at the corners of the grooved cover plate 5 to separate the grooved cover plate 5 from the inside of the mask body 31. Install the prepared rotating protective mechanism 4 through the mask body 31. Specifically, align the prepared damping bearing 41 with the center of the connecting seat 371. By pressing the circular protective disc 43, the damping bearing 41 is embedded into the middle of the connecting seat 371 through the top. During this process, the inclined limiting block 374 at the front end is squeezed by the damping bearing 41 and moves inward along the path of the adjusting cavity 372. During the movement, the dovetail block 375 slides and connects with the adjusting cavity 372, preventing the limiting block 374 from accidentally contacting the connecting seat 371. When the damping bearing 41 is inserted into the middle of the connecting seat 371, the dust cover 6 located below will be compressed by the circular protective disc 43 to shrink and store energy, while the limiting wedge 374 will be ejected outward by the elastic force of the return spring 373. The position of the card seat 42 is limited by the return spring 373. Then the grooved cover plate 5 is returned to its original position. The entire rotating protective mechanism 4 is easy, efficient and practical to install. By wearing the headgear 1 to the head, the protective mask assembly 3 is located in front of the face. The face is protected by the mask body 31. The staff can observe through the observation slot opened on the top of the mask body 31 and the grooved cover plate 5. The circular protective disc 43 protects the eyes. If welding slag and dust affect the visibility of this part of the disc during prolonged steel pipe welding, the worker can rotate the anti-slip wheel 38 located in front. Simultaneously, the anti-slip wheel 38 rotates, driving the half-gear 33 to rotate synchronously via the adjusting shaft 32. When the teeth of the half-gear 33 mesh with the adjusting shaft 32, the gear ring 44 causes the circular protective disc 43 to rotate intermittently. This causes the area of ​​the circular protective disc 43 with welding slag to move out of the welder's line of sight, while the clean area of ​​the disc 43 moves into front of the welder's line of sight, thus quickly restoring a clear field of vision. Furthermore, with each rotation of the half-gear 33, the circular protective disc 43... The protective disc 43 rotates 15°. This intermittent rotation allows for high precision in adjusting the angle of the circular protective disc 43. This method is more convenient and efficient than the traditional method of improving observation through on-site cleaning and wiping. During use, the dust cover 6 prevents welding dust from falling directly onto the outside of the adjusting shaft 32 and the anti-slip wheel 38. The dustproof rubber pad 7 protects the outer side of the adjusting shaft 32, ensuring the rotation effect of the adjusting shaft 32. At the same time, with each rotation of the half gear 33, the teeth of the half gear 33 will fully contact the oil-absorbing sponge 35 below, which absorbs lubricating oil, ensuring the meshing effect between the half gear 33 and the gear ring 44 and ensuring the effectiveness of the angle adjustment of the gear ring 44.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A protective device for welding steel pipes, comprising a head cap (1), characterized in that: The front end of the headgear (1) is fixedly connected to a brim plate (2), the bottom end of the brim plate (2) is fixedly connected to a protective face mask assembly (3), a rotating protective mechanism (4) is installed inside the protective face mask assembly (3), and a grooved cover plate (5) is fixed to the back of the protective face mask assembly (3) by bolts. The protective mask assembly (3) includes a mask body (31), an adjusting shaft (32) is rotatably connected to the bottom of the inner side of the mask body (31), a half gear (33) is fixedly connected to one end of the adjusting shaft (32), a support spring (36) is rotatably connected to the middle of the inner side of the adjusting shaft (32), and a connecting mechanism (37) is fixedly connected to the center of the inner side of the mask body (31). The rotating protection mechanism (4) includes a damping bearing (41), a retainer (42) is fixedly connected to the outside of the damping bearing (41), a circular protective disc (43) is fitted on the outside of the retainer (42), and a toothed ring (44) is fixedly connected to the outside of the circular protective disc (43). The adjusting shaft (32) is located below the gear ring (44), and the gear ring (44) is meshed with the adjusting shaft (32). The damping bearing (41) is sleeved on the outside of the connecting mechanism (37).

2. The protective device for steel pipe welding according to claim 1, characterized in that: The connecting mechanism (37) includes a connecting seat (371). The top and bottom of the front end of the connecting seat (371) are provided with adjustment cavities (372). Two return springs (373) are fixedly connected to the inner side of the adjustment cavity (372). The front end of the return spring (373) is fixedly connected to a limiting block (374). The top of the front end of the limiting block (374) is an inclined structure. Dovetail blocks (375) are fixedly connected to both sides of the limiting block (374). The dovetail blocks (375) are slidably connected to the inner side of the adjustment cavity (372).

3. The protective device for steel pipe welding according to claim 1, characterized in that: A collection plate (34) is fixedly connected to the bottom of the inner side of the mask body (31). The collection plate (34) is parallel to the mask body (31). An oil-absorbing sponge (35) is embedded in the inner side of the collection plate (34). The oil-absorbing sponge (35) is located below the half gear (33).

4. The protective device for steel pipe welding according to claim 1, characterized in that: There is a gap between the inner side of the support spring (36) and the outer side of the connecting seat (371). The support spring (36) and the circular protective plate (43) are located on the same central axis. The front end of the support spring (36) is in contact with the outer side of the circular protective plate (43).

5. A protective device for steel pipe welding according to claim 1, characterized in that: The other end of the adjusting shaft (32) is fixedly connected to an anti-slip wheel (38). The anti-slip wheel (38) and the half gear (33) are located on the same central axis. The rear end of the anti-slip wheel (38) is rotatably fitted with a dustproof rubber pad (7). The dustproof rubber pad (7) is bonded and fixed to the mask body (31).

6. The protective device for steel pipe welding according to claim 1, characterized in that: The mask body (31) has arc-shaped structures on both sides. The mask body (31) corresponds to the grooved cover plate (5) front and back. The circular protective disc (43) is located between the mask body (31) and the grooved cover plate (5).

7. A protective device for steel pipe welding according to claim 5, characterized in that: A dust cover (6) is installed on the outside of the anti-slip wheel (38). The dust cover (6) has a hollow structure inside and is bonded and fixed to the front end of the mask body (31).

Images