Steel bar welding protective cover for industrial factory building construction

Abstract

The invention discloses a reinforcing steel bar welding protective cover for industrial factory building construction, and relates to the technical field of welding protective equipment, the reinforcing steel bar welding protective cover comprises a mask capable of being worn on the head of a human body, and is characterized in that a perspective window is integrally formed in the outer surface of the mask, and a shading lens is mounted in the perspective window; an air flow channel used for blowing air to the surface of the shading lens to remove dust is further arranged in the mask, an air pump used for inflating the air flow channel is installed on the inner surface of the mask, and a trigger assembly capable of being matched with the lower jaw of the human body to control the air pump to be opened and closed is further arranged on the inner surface of the mask. Through ingenious linkage of the trigger assembly and the air pump, automatic dust removal is achieved, manual operation of workers is not needed, dust on the surface of the shading lens is removed in time, it is ensured that the sight is always clear in the whole welding process, the welding precision is improved, welding errors caused by sight blocking are reduced, and the welding quality and the construction efficiency are effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of welding protection equipment, and particularly to a steel bar welding protective cover for industrial plant construction. Background Technique

[0002] In various fields of modern society, welding technology has become an indispensable key process. From large-scale construction sites, to sophisticated shipyards, and even to the installation of water pipes and doors and windows during the decoration of new houses in daily life, welding technology is everywhere. When welders use welding technology to connect various metals or thermoplastic materials together, extremely bright and high-temperature electric sparks will be generated, which pose a serious threat to the eye and face safety of welders. Therefore, in order to ensure their own safety, welders usually wear welding caps for protection during operations.

[0003] At present, most of the common welding caps on the market adopt the design of directly connecting a face shield with a light-shielding lens on the cap. However, this traditional structure exposes many drawbacks in the actual use process: during the welding process, due to the complex environment around the welding point, a large amount of dust is easily generated, and these dusts will quickly adhere to the surface of the light-shielding lens. When welders are operating, their hands are often busy, one hand tightly holding the welding pliers and the other hand holding the workpiece, and they simply have no time to take care of the dust on the lens. Over time, the accumulated dust on the lens will seriously block the line of sight, making it difficult for welders to accurately locate the welding point, increasing the probability of welding mistakes, not only affecting the welding quality, but also possibly causing the workpiece to be scrapped and delaying the construction progress. Summary of the Invention

[0004] The purpose of the present invention is to provide a steel bar welding protective cover for industrial plant construction to solve the problems raised in the above background technique.

[0005] To solve the above technical problems, a steel bar welding protective cover for industrial plant construction provided by the present invention includes a face shield that can be worn on the human head. A perspective window is integrally formed on the outer surface of the face shield, and a light-shielding lens is installed inside the perspective window. An air flow channel for blowing air to the surface of the light-shielding lens for dust removal is further provided inside the face shield. An air pump for inflating the gas channel is installed on the inner surface of the face shield, and a trigger assembly capable of cooperating with the human mandible to control the opening and closing of the air pump is further provided on the inner surface of the face shield. The trigger assembly includes,

[0006] A telescopic support rod, rotatably connected to the inner surface of the face shield, on which a mandibular support capable of adjusting the angle is installed;

[0007] A lower support rod, one end of which is rotatably connected to the bottom surface of the telescopic support rod, and the other end abuts against the inner surface of the face shield. A compression spring is connected to the lower support rod, and the end of the compression spring far from the lower support rod is connected to the bottom surface of the telescopic support rod;

[0008] A leaf spring is installed obliquely on the inner surface of the mask, and its position corresponds to the lower support rod;

[0009] The touch switch is connected to the inner surface of the mask and corresponds to the position of the leaf spring, and the air pump is electrically connected to the touch switch.

[0010] Furthermore, one end of the lower support rod that abuts against the inner surface of the mask is rotatably connected to a roller, and the roller is in contact with the outer surface of the leaf spring.

[0011] Furthermore, a connecting seat is installed on the inner surface of the mask, the telescopic support rod is rotatably connected to the connecting seat, a torsion spring is sleeved on the telescopic support rod, one end of the torsion spring is connected to the side wall of the telescopic support rod, and the other end of the telescopic support rod is connected to the inner wall of the connecting seat.

[0012] Furthermore, the mask is overall arc-shaped, and its outer edges are all provided with rounded corners, and the inner arc surface of the mask is connected to a wearing component.

[0013] Furthermore, the wearing assembly includes a ring sleeve, which is connected to the upper part of the inner arc surface of the mask, and the mask can pitch and rotate relative to the ring sleeve. The ring sleeve is also provided with a first adjustment seat for adjusting the tightness of the ring sleeve. A fastening belt is connected to the upper surface of the first adjustment seat, and the fastening belt is provided with a second adjustment seat for adjusting its tightness.

[0014] Furthermore, the gas channel includes a sealed cavity opened on the perspective window, and the bottom surface of the sealed cavity is provided with an air outlet hole connected to the inner wall of the perspective window, and the air outlet hole is located on the side wall above the perspective window. There are multiple air outlet holes, and the multiple air outlet holes are equidistantly arranged along the length direction of the perspective window, and the air outlet end of the air pump is connected to the sealed cavity.

[0015] Furthermore, a valve groove for cutting off the air outlet is provided on the upper side wall of the perspective window, a valve plate is slidably installed inside the valve groove, a conducting hole corresponding to the air outlet is provided on the valve plate, one end of the valve plate is connected to the inner wall of the valve groove through a spring, and the other end of the valve plate is connected to a steel wire rope, the other end of the steel wire rope penetrates into the sealing cavity, and passes through the side wall of the mask and is connected to the telescopic support rod.

[0016] Furthermore, a reel is installed on one end of the telescopic support rod connected to the connecting seat, and the steel wire rope passing through the mask is fixedly connected to the reel.

[0017] Furthermore, the telescopic support rod includes a sleeve rotatably connected to the inner surface of the mask. A sliding rod is slidably connected to the sleeve, and the mandibular support is mounted on the sliding rod. A locking bolt is also threadedly connected to the sliding rod, and one end of the locking bolt extending into the interior of the sliding rod abuts against the outer wall of the sleeve.

[0018] Furthermore, a cushion is mounted on the mandibular support. The cushion covers the upper surface of the mandibular support, and the material of the cushion is memory foam.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] 1. In the present invention, through the ingenious linkage between the triggering assembly and the air pump, automatic dust removal is realized, eliminating the need for manual operation by workers. Dust on the surface of the light-shielding lens is promptly removed, ensuring clear vision throughout the welding process, improving welding accuracy, reducing welding errors caused by blocked vision, effectively enhancing welding quality and construction efficiency. At the same time, the uniform air-blowing dust removal design avoids incomplete local cleaning, further ensuring clear vision.

[0021] 2. In the present invention, when the telescopic support rod rotates, the winding wheel thereon rotates synchronously to wind or release the steel wire rope. The steel wire rope pulls the valve plate to slide in the valve groove. When air-blowing dust removal is required, the guiding through-hole on the valve plate aligns with the air outlet hole, and the gas blows out smoothly; when air-blowing is not needed, the valve plate cuts off the air outlet hole under the action of the spring, preventing external dust from blocking the air outlet hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is the front view structural schematic diagram of the present invention;

[0023] Figure 2 is the rear view structural schematic diagram of the present invention;

[0024] Figure 3 is the front view structural schematic diagram of the mask in the present invention;

[0025] Figure 4 is the rear view structural schematic diagram of the mask in the present invention;

[0026] Figure 5 is the sectional structural schematic diagram of the mask in the present invention;

[0027] Figure 6 is Figure 5 the enlarged structural view of part A in

[0028] Figure 7 is the three-dimensional structural schematic diagram of the triggering assembly in the present invention;

[0029] Figure 8 is the side view structural schematic diagram of the triggering assembly in the present invention.

[0030] In the figure: 1, face mask; 2, perspective window; 3, light-shielding lens; 4, ring sleeve; 5, first adjustment seat; 6, fastening strap; 7, second adjustment seat; 8, air pump; 9, telescopic support rod; 91, sleeve; 92, sliding rod; 93, locking bolt; 10, mandibular support; 11, connecting seat; 12, touch switch; 13, sealing cavity; 14, air outlet; 15, valve groove; 16, valve plate; 17, guide through hole; 18, steel wire rope; 19, winding wheel; 20, torsion spring; 21, gasket; 22, lower support rod; 23, compression spring; 24, roller; 25, leaf spring. Detailed implementation mode

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0032] Please refer to Figures 1-8 , the present invention provides a technical solution: a steel bar welding protective cover for industrial plant construction, including a face mask 1 that can be worn on the human head. A perspective window 2 is integrally formed on the outer surface of the face mask 1. A light-shielding lens 3 is installed inside the perspective window 2. An air flow channel for blowing air onto the surface of the light-shielding lens 3 to remove dust is also provided inside the face mask 1. An air pump 8 for inflating the inside of the gas channel is installed on the inner surface of the face mask 1. A trigger assembly capable of cooperating with the human mandible to control the opening and closing of the air pump 8 is also provided on the inner surface of the face mask 1. The trigger assembly includes,

[0033] A telescopic support rod 9, rotatably connected to the inner surface of the face mask 1, on which a mandibular support 10 capable of angle adjustment is installed;

[0034] A lower support rod 22, one end of which is rotatably connected to the bottom surface of the telescopic support rod 9, and the other end abuts against the inner surface of the face mask 1. A compression spring 23 is connected to the lower support rod 22, and the end of the compression spring 23 away from the lower support rod 22 is connected to the bottom surface of the telescopic support rod 9;

[0035] A leaf spring 25, obliquely installed on the inner surface of the face mask 1, and its position corresponds to that of the lower support rod 22;

[0036] A touch switch 12, connected to the inner surface of the face mask 1, corresponding to the position of the leaf spring 25, and the air pump 8 is electrically connected to the touch switch 12.

[0037] Specifically, when the worker wears the mask 1 and places the mandible on the mandibular support 10, the pressure of the mandibular movement causes the telescopic rod 9 to rotate, driving the lower rod 22 to move. The lower rod 22 presses the leaf spring 25, triggering the touch switch 12, thereby starting the air pump 8. The air pump 8 inflates the air flow channel, and the air flow blows towards the surface of the light-shielding lens 3 through the air flow channel to achieve dust removal. Through the linkage of the triggering component and the air pump 8, the automatic dust removal function is realized. The worker does not need to operate manually. When wearing the mask 1 for welding operations, the dust on the surface of the light-shielding lens 3 can be removed in time, ensuring clear vision, improving welding accuracy, reducing welding mistakes caused by blocked vision, and improving welding quality and construction efficiency.

[0038] Refer to Figure 2 , Figure 5 and Figure 7 , a roller 24 is rotatably connected to one end of the lower rod 22 that abuts against the inner surface of the mask 1, and the roller 24 is attached to the outer surface of the leaf spring 25.

[0039] Specifically, when the lower rod 22 moves, the roller 24 rolls on the outer surface of the leaf spring 25, reducing the friction between the lower rod 22 and the leaf spring 25, making the movement of the lower rod 22 smoother, reducing the resistance during the operation of the triggering component, improving the sensitivity and stability of triggering, ensuring that the air pump 8 can be started and stopped reliably, extending the service life of the triggering component, and reducing component wear and failures caused by friction.

[0040] Refer to Figure 4 , Figure 5 and Figure 7 , a connecting seat 11 is installed on the inner surface of the mask 1. The telescopic rod 9 is rotatably connected to the connecting seat 11. A torsion spring 20 is sleeved on the telescopic rod 9. One end of the torsion spring 20 is connected to the side wall of the telescopic rod 9, and the other end of the telescopic rod 9 is connected to the inner wall of the connecting seat 11.

[0041] Specifically, the torsion spring 20 provides a restoring force to the telescopic rod 9. When the pressure of the mandible disappears, the telescopic rod 9 returns to its initial position under the action of the torsion spring 20, driving components such as the lower rod 22 to reset. The touch switch 12 is disconnected, and the air pump 8 stops working. The automatic reset function of the triggering component is realized, without manual adjustment, which is convenient for the worker to use next time. At the same time, the setting of the torsion spring 20 makes the action of the triggering component more stable and reliable, further improving the usability and stability of the equipment.

[0042] Refer to Figure 1 , the mask 1 is integrally arc-shaped, and its outer edges are all provided with rounded corners. The inner arc surface of the mask 1 is connected with a wearing component.

[0043] Specifically, the mask 1 is overall arc-shaped and has rounded corners on the outside, which conforms to the ergonomic design and can better fit the contour of the worker's head. The wearing component on the inner arc surface is used to firmly wear the mask 1 on the worker's head; it improves the comfort and stability of wearing the mask 1, reduces the impact of uncomfortable wearing or shaking of the mask 1 on the worker's operation, and at the same time the rounded corner design can avoid accidental injuries to the workers.

[0044] See also Figure 1 The wearing component includes a ring sleeve 4, which is connected to the upper part of the inner arc surface of the mask 1, and the mask 1 can pitch and rotate relative to the ring sleeve 4. The ring sleeve 4 is also provided with a first adjustment seat 5 for adjusting the tightness of the ring sleeve 4. A fastening belt 6 is connected to the upper surface of the first adjustment seat 5, and a second adjustment seat 7 for adjusting the tightness thereof is provided on the fastening belt 6.

[0045] Specifically, the ring sleeve 4 can make the mask 1 pitch and rotate relative to it to adapt to the head posture and operating requirements of different workers. The first adjustment seat 5 is used to adjust the tightness of the ring sleeve 4. The fastening belt 6 and the second adjustment seat 7 further adjust the tightness of the overall wearing to ensure that the mask 1 is firmly worn, enhance the flexibility and adaptability of the mask 1, can meet the head size and wearing habits of different workers, improve the comfort of workers wearing and the stability of the mask 1, and help workers maintain a good operating state during the welding process.

[0046] See also Figure 5 and Figure 6 The gas passage includes a sealed cavity 13 opened on the perspective window 2, and a gas outlet hole 14 connected to the inner wall of the perspective window 2 is opened on the bottom surface of the sealed cavity 13. The gas outlet hole 14 is located on the side wall above the perspective window 2. There are multiple gas outlet holes 14, and the multiple gas outlet holes 14 are equidistantly arranged along the length direction of the perspective window 2. The gas outlet end of the air pump 8 is connected to the sealed cavity 13.

[0047] Specifically, the air pump 8 fills the gas into the sealed cavity 13, and the gas in the sealed cavity 13 is evenly blown toward the surface of the shading lens 3 through a plurality of air outlet holes 14 equidistantly arranged along the length direction of the perspective window 2, thereby achieving comprehensive removal of dust on the surface of the lens, ensuring a uniform blowing and dust removal effect on the surface of the shading lens 3, avoiding the occurrence of inadequate local cleaning, effectively improving the dust removal efficiency, ensuring that the workers always have a clear line of sight, and being conducive to improving welding quality.

[0048] See also Figure 6, a valve groove 15 that cuts off the air outlet hole 14 is provided on the upper side wall of the perspective window 2. A valve plate 16 is slidably installed inside the valve groove 15. A guiding through hole 17 that matches the air outlet hole 14 is provided on the valve plate 16. One end of the valve plate 16 is connected to the inner wall of the valve groove 15 through a spring, and the other end of the valve plate 16 is connected to a steel wire rope 18. The other end of the steel wire rope 18 penetrates into the sealing cavity 13 and passes through the side wall of the face mask 1 to be connected to the telescopic support rod 9.

[0049] Specifically, when the telescopic support rod 9 rotates, the steel wire rope 18 is pulled through the winding wheel 19. The steel wire rope 18 drives the valve plate 16 to slide in the valve groove 15. When dust removal by blowing is required, the guiding through hole 17 on the valve plate 16 is aligned with the air outlet hole 14, and gas can pass through. When blowing is not required, the valve plate 16 moves under the action of the spring to cut off the air outlet hole 14 and prevent gas from flowing out, achieving precise control of the air outlet of the air outlet hole 14, avoiding waste of the gas source when dust removal is not required, and at the same time being able to perform dust removal operations in a timely and effective manner according to actual needs, improving the energy saving and practicality of the equipment.

[0050] Refer to Figure 7 , a winding wheel 19 is installed at one end of the telescopic support rod 9 connected to the connecting seat 11. The steel wire rope 18 passing through the face mask 1 is fixedly connected to the winding wheel 19.

[0051] Specifically, the winding wheel 19 is installed on the telescopic support rod 9. When the telescopic support rod 9 rotates, the winding wheel 19 rotates synchronously to wind or release the steel wire rope 18, thereby precisely controlling the position of the valve plate 16, ensuring the accuracy and stability of the action of the steel wire rope 18 pulling the valve plate 16, improving the reliability of the control of the air outlet hole 14, and further ensuring the normal operation of the dust removal function by blowing.

[0052] Refer to Figure 7 , the telescopic support rod 9 includes a sleeve 91 rotatably connected to the inner surface of the face mask 1. A sliding rod 92 is slidably connected to the sleeve 91. The lower jaw support 10 is installed on the sliding rod 92. A locking bolt 93 is also threadedly connected to the sliding rod 92. One end of the locking bolt 93 extending into the interior of the sliding rod 92 abuts against the outer wall of the sleeve 91.

[0053] Specifically, by adjusting the sliding position of the sliding rod 92 in the sleeve 91, the height of the lower jaw support 10 can be changed to adapt to the positions of the lower jaws of different workers. After the adjustment is completed, tighten the locking bolt 93 to make it abut against the outer wall of the sleeve 91 to fix the position of the sliding rod 92, increasing the adjustability of the height of the lower jaw support 10, improving the adaptability of the face mask 1 to different workers, enabling the trigger assembly to better adapt to the usage requirements of different workers, and further enhancing the convenience and comfort of the equipment in use.

[0054] Refer to Figure 7, a cushion 21 is installed on the mandibular support 10, and the cushion 21 covers the upper surface of the mandibular support 10. The material of the cushion 21 is memory foam.

[0055] Specifically, the cushion 21 is made of memory foam material, which can conform to the shape of the worker's mandible, provide soft and comfortable support, greatly improve the comfort of wearing the mandibular support 10, reduce the pressure on the mandible caused by long-term wearing, enable the worker to focus more on the welding operation, and at the same time contribute to improving the stability of wearing the mask 1.

[0056] Working principle: When a worker wears this steel bar welding protective cover for industrial plant construction, first place the head in the ring sleeve 4, adjust the tightness of the ring sleeve 4 through the first adjusting seat 5, and further adjust the overall wearing tightness by using the fastening belt 6 and the second adjusting seat 7, so that the mask 1 fits firmly on the head. Since the mask 1 is integrally arc-shaped and has a rounded outer edge, it can well adapt to the head contour;

[0057] When the worker starts the welding operation, place the mandible on the mandibular support 10. The pressure of the mandibular movement causes the telescopic support rod 9 to rotate around the connecting seat 11. The rotation of the telescopic support rod 9 drives the lower support rod 22 to move. The roller 24 on the lower support rod 22 rolls on the outer surface of the leaf spring 25, squeezing the leaf spring 25 to trigger the touch switch 12, and then starting the air pump 8. The air pump 8 inflates the sealing cavity 13 on the viewing window 2. The gas in the sealing cavity 13 is evenly blown onto the surface of the light-shielding lens 3 through a plurality of air outlet holes 14 arranged equidistantly along the length direction of the viewing window 2, realizing the cleaning of the dust on the lens surface; at the same time, when the telescopic support rod 9 rotates, the winding wheel 19 on it rotates synchronously, winding or releasing the steel wire rope 18. The steel wire rope 18 pulls the valve plate 16 to slide in the valve groove 15. When blowing air for dust removal is required, the guide through hole 17 on the valve plate 16 is aligned with the air outlet hole 14, and the gas blows out smoothly; when blowing air is not required, the valve plate 16 cuts off the air outlet hole 14 under the action of the spring. In addition, the worker can adjust the sliding position of the sliding rod 92 in the sleeve 91 according to the position of his own mandible, change the height of the mandibular support 10, and fix it with the locking bolt 93 after the adjustment is completed.

[0058] As described above, although the present invention has been shown and described with reference to specific preferred embodiments, it should not be construed as a limitation of the present invention itself. Various changes can be made to it in form and detail without departing from the spirit and scope of the present invention defined by the appended claims.

Claims

1. A steel bar welding protective cover for industrial plant construction, comprising a mask (1) that can be worn on a human head, characterized in that: The outer surface of the mask (1) is integrally formed with a perspective window (2), a shading lens (3) is installed inside the perspective window (2), an air flow channel for blowing air to the surface of the shading lens (3) for dust removal is also provided inside the mask (1), an air pump (8) for inflating air into the air channel is installed on the inner surface of the mask (1), and a trigger component capable of cooperating with the human mandible to control the opening and closing of the air pump (8) is also provided on the inner surface of the mask (1), the trigger component comprising: A telescopic support rod (9) is rotatably connected to the inner surface of the mask (1), and a jaw support (10) capable of adjusting the angle is mounted on the support rod; A lower support rod (22), one end of which is rotatably connected to the bottom surface of the telescopic support rod (9), and the other end of which is in contact with the inner surface of the mask (1); a compression spring (23) is connected to the lower support rod (22), and one end of the compression spring (23) away from the lower support rod (22) is connected to the bottom surface of the telescopic support rod (9); A leaf spring (25) is installed obliquely on the inner surface of the mask (1) and its position corresponds to the lower support rod (22); The touch switch (12) is connected to the inner surface of the mask (1) and corresponds to the position of the leaf spring (25), and the air pump (8) is electrically connected to the touch switch (12).

2. A steel bar welding protective cover for industrial plant construction as claimed in claim 1, characterized in that: One end of the lower support rod (22) that abuts against the inner surface of the mask (1) is rotatably connected to a roller (24), and the roller (24) is in contact with the outer surface of the leaf spring (25).

3. The steel bar welding protective cover for industrial plant construction as claimed in claim 1, characterized in that: A connecting seat (11) is installed on the inner surface of the mask (1), and the telescopic support rod (9) is rotatably connected to the connecting seat (11). A torsion spring (20) is sleeved on the telescopic support rod (9), one end of the torsion spring (20) is connected to the side wall of the telescopic support rod (9), and the other end of the telescopic support rod (9) is connected to the inner wall of the connecting seat (11).

4. A steel bar welding protective cover for industrial plant construction as claimed in claim 1, characterized in that: The mask (1) is in an arc shape as a whole, and its outer edges are all provided with rounded corners. The inner arc surface of the mask (1) is connected to a wearing component.

5. A steel bar welding protective cover for industrial plant construction as claimed in claim 4, characterized in that: The wearing assembly comprises a ring sleeve (4), wherein the ring sleeve (4) is connected to the upper part of the inner arc surface of the mask (1), and the mask (1) can be pitched and rotated relative to the ring sleeve (4); a first adjustment seat (5) for adjusting the tightness of the ring sleeve (4) is also arranged on the ring sleeve (4); a tightening belt (6) is connected to the upper surface of the first adjustment seat (5), and a second adjustment seat (7) for adjusting the tightness of the tightening belt (6) is arranged on the tightening belt (6).

6. A steel bar welding protective cover for industrial plant construction as claimed in claim 1, characterized in that: The gas passage comprises a sealed cavity (13) opened on the perspective window (2); a bottom surface of the sealed cavity (13) is provided with an air outlet (14) connected to the inner wall of the perspective window (2); the air outlet (14) is located on the side wall above the perspective window (2); a plurality of the air outlets (14) are provided, and the plurality of the air outlets (14) are arranged equidistantly along the length direction of the perspective window (2); and an air outlet end of the air pump (8) is connected to the sealed cavity (13).

7. A steel bar welding protective cover for industrial plant construction as claimed in claim 6, characterized in that: A valve groove (15) for cutting off the air outlet (14) is provided on the upper side wall of the perspective window (2); a valve plate (16) is slidably mounted inside the valve groove (15); a conducting hole (17) matching the air outlet (14) is provided on the valve plate (16); one end of the valve plate (16) is connected to the inner wall of the valve groove (15) via a spring; the other end of the valve plate (16) is connected to a steel wire rope (18); the other end of the steel wire rope (18) penetrates into the interior of the sealing cavity (13), and passes through the side wall of the mask (1) to be connected to the telescopic support rod (9).

8. A steel bar welding protective cover for industrial plant construction as claimed in claim 7, characterized in that: A reel (19) is installed on one end of the telescopic support rod (9) connected to the connecting seat (11), and a steel wire rope (18) passing through the mask (1) is fixedly connected to the reel (19).

9. A steel bar welding protective cover for industrial plant construction as claimed in claim 1, characterized in that: The telescopic support rod (9) comprises a sleeve (91) rotatably connected to the inner surface of the mask (1), a slide rod (92) being slidably connected to the sleeve (91), the mandibular support (10) being mounted on the slide rod (92), a locking bolt (93) being threadedly connected to the slide rod (92), and one end of the locking bolt (93) extending to the interior of the slide rod (92) being tightly abutted against the outer wall of the sleeve (91).

10. A steel bar welding protective cover for industrial plant construction as claimed in claim 1, characterized in that: A pad (21) is installed on the mandibular support (10), and the pad (21) is covered on the upper surface of the mandibular support (10). The material of the pad (21) is memory foam.

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