Protective mask capable of being fixed on safety helmet

Abstract

The utility model relates to the technical field of construction safety protection tools, in particular to a protective mask capable of being fixed on a safety helmet, which comprises two hanging rods, a front protective cover is fixedly arranged at the end part of one side of each hanging rod, an upper protective cover is arranged at the top of the front protective cover, and the upper protective cover is fixed on the front protective cover. A limiting cross beam is arranged between the ends, close to the front protective cover, of the two hanging rods, clamping limiting pieces and adsorption limiting pieces are further arranged on the hanging rods in the axial direction, and the two hanging rods are parallel to each other and located on the left side and the right side of a helmet brim of an external safety helmet when being worn; the clamping limiting piece and the adsorption limiting piece face inwards and are fixedly connected with the hat brim, and the limiting cross beam is perpendicular to the hanging rod and is erected at the top of the front end of the hat brim of an external safety helmet during wearing. The product can be directly matched with a conventional safety helmet, quick disassembly and assembly and multidirectional stable fixation are achieved, and all-directional face protection and use economy are achieved.

Description

Technical Field

[0001] This utility model mainly relates to the field of construction safety protection tools, specifically a protective face shield that can be fixed to a safety helmet. Background Technology

[0002] A safety helmet is a personal protective equipment used to protect the head. It is commonly used in construction sites such as mines, construction sites, and industrial manufacturing facilities. During operations such as crushing and welding (e.g., rebar cutting, shotcreting), protective face shields are required to prevent damage to workers' faces from flying debris, dust, and metal shavings. Therefore, it is necessary to use both a safety helmet and a protective face shield to protect workers. Traditional solutions typically integrate the face shield and safety helmet into a single, non-detachable structure, increasing the burden and inconvenience for workers when a face shield is not needed.

[0003] Based on the above, the Chinese patent technology with publication number CN217986798U features mounting brackets on both sides of the safety helmet. The face shield is then inserted into the brackets via a limiting plate, allowing for simultaneous installation and removal of the face shield and safety helmet, thus improving ease of use. However, this face shield requires a specialized safety helmet, necessitating the construction unit to purchase both a helmet and face shield for proper operation. This increases the financial burden of procurement and can easily lead to the original safety helmet becoming unused, resulting in resource waste. Therefore, a protective face shield that can be installed and secured with a standard safety helmet is needed. Utility Model Content

[0004] The purpose of this invention is to provide a protective face shield that can be fixed to a safety helmet, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a protective face shield that can be fixed to a safety helmet, comprising two hanging rods. A front protective cover is fixedly provided on one end of each of the two hanging rods, and an upper protective cover is provided on the top of the front protective cover. A limiting beam is provided between the ends of the two hanging rods near the front protective cover. Clamping limiting members and adsorption limiting members are also provided on the hanging rods along the axial direction. The two hanging rods are parallel to each other and are located on the left and right sides of the outer safety helmet brim when worn. The clamping limiting members and adsorption limiting members are connected and fixed to the brim inward. The limiting beam is perpendicular to the hanging rods and is mounted on the top front end of the outer safety helmet brim when worn.

[0006] Preferably, the clamping and limiting component includes an elastic clip, which has a U-shaped structure that flips sideways. Its opening faces inward and tends to close in its natural state, thereby clamping one side of the outer helmet brim. The top and bottom of the elastic clip form hinged parts, and a force-applying frame is hinged to the hinged parts. After the elastic clip is clamped, it works with the limiting beam to limit the vertical movement of the front protective cover at three points.

[0007] Furthermore, the elastic opening and closing range of the elastic clip opening is 0 to 4 cm, and a layer of anti-slip rubber is fixedly provided on the inner side of both ends of the opening, the thickness of the anti-slip rubber layer being 0.5 cm.

[0008] Furthermore, the adsorption limiting component includes a connecting frame and a suction cup. The end of the hanging rod facing away from the front protective cover is rotatably provided with a rotating shaft. The connecting frame has a U-shaped structure, with one end fixedly connected to the rotating shaft and the other end fixedly connected to the suction cup. The adsorption end of the suction cup faces downward to adsorb the brim of the external safety helmet. The suction cup, in conjunction with an elastic clip with an anti-slip rubber layer, provides four-point coordinated limiting of the horizontal movement of the front protective cover.

[0009] Preferably, the front protective cover is made of a transparent material.

[0010] Preferably, the upper protective cover is made of high-strength plastic material and has an arc-shaped structure, which is bent inward with the line segment formed between the left and right ends of the top of the upper protective cover as the axis.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] This utility model provides a protective face shield that can be fixed to a safety helmet. It uses two hanging rods arranged symmetrically, and a clamping and limiting component including an elastic clip and an anti-slip rubber layer, and an adsorption limiting component including a suction cup, to couple and fix the helmet brim in multiple directions. At the same time, a limiting beam is set at the top of the front end of the brim to form a support point. Together, they form a composite stability system of vertical three-point cooperative limiting and horizontal four-point cooperative limiting. This breaks through the limitation of traditional face shields that rely on the integration of a special helmet body, and realizes immediate adaptation and installation of any conventional safety helmet.

[0013] 2. The present invention provides a protective face shield that can be fixed to a safety helmet. The front protective shield, made of an integrated transparent material, provides basic frontal protection and unobstructed vision. In conjunction with the upper protective shield on top, it forms a multi-angle extended protection zone. The upper protective shield bends inward with the two ends of the top of the protective shield as the axis. While strongly protecting the upper edge of the forehead, it avoids conflict with the main structure of the safety helmet, and takes into account the flexibility of all-round protection and the integrity of vision.

[0014] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0015] The accompanying drawings are only used to illustrate the principles, implementation methods, applications, features, and effects of the present invention and other related contents, and should not be considered as limitations on the present invention.

[0016] In the accompanying drawings of the instruction manual:

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the end structure of the hanging rod of this utility model;

[0019] Figure 3 This is a schematic diagram showing the state of the present invention after it is fixed to a safety helmet;

[0020] Figure label:

[0021] 1. Hanging rod; 11. Rotating shaft; 2. Clamping and limiting component; 21. Elastic clamp; 22. Hinge; 23. Force application frame; 24. Anti-slip rubber layer; 3. Adsorption and limiting component; 31. Connecting frame; 32. Suction cup; 4. Limiting beam; 5. Front protective cover; 6. Upper protective cover; 7. Safety helmet. Detailed Implementation

[0022] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0023] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0024] like Figures 1 to 3 As shown, a protective face shield that can be fixed to a safety helmet includes two hanging rods 1. A front protective cover 5 is fixedly installed at the front end of each hanging rod 1. An upper protective cover 6 is installed on the top of the front protective cover 5. A limiting beam 4 is provided between the ends of the two hanging rods 1 near the front protective cover 5. A clamping limiting member 2 and an adsorption limiting member 3 are also provided on the hanging rods 1 along the axial direction. The two hanging rods 1 are parallel to each other and are located on the left and right sides of the brim of the outer safety helmet 7 when worn. The clamping limiting member 2 and the adsorption limiting member 3 are connected and fixed to the brim inward. The limiting beam 4 is perpendicular to the hanging rods 1 and is mounted on the top front end of the brim of the outer safety helmet 7 when worn.

[0025] The clamping and limiting component 2 includes an elastic clip 21, which has a U-shaped structure that flips sideways. Its opening faces inward and tends to close in its natural state, thereby clamping one side of the brim of the outer safety helmet 7. The top and bottom of the elastic clip 21 form hinged parts 22, and a force-applying frame 23 is hinged to the hinged parts 22. After the elastic clip 21 is clamped, it works with the limiting beam 4 to limit the vertical movement of the front protective cover 5 at three points.

[0026] The elastic clip 21 has an elastic opening and closing range of 0 to 4 cm. A layer of anti-slip rubber 24 is fixedly provided on the inner side of both ends of the opening. The thickness of the anti-slip rubber layer 24 is 0.5 cm. The elastic clip 21 adapts to different brim thicknesses by elastically opening and closing, so as to achieve compatible installation of any standard safety helmet brim.

[0027] The adsorption limiting component 3 includes a connecting frame 31 and a suction cup 32. The end of the hanging rod 1 facing away from the front protective cover 5 is rotatably provided with a rotating shaft 11. The connecting frame 31 has a U-shaped structure, with one end fixedly connected to the rotating shaft 11 and the other end fixedly connected to the suction cup 32. The adsorption end of the suction cup 32 faces downward to adsorb the brim of the external safety helmet 7. The suction cup 32, together with the elastic clip 21 with an anti-slip rubber layer 24, provides four-point coordinated limiting for the horizontal movement of the front protective cover 5. Together with the three-point coordinated limiting between the limiting beam 4 and the elastic clip 21, a three-dimensional spatial constraint system is constructed to prevent the face mask from separating from the safety helmet 7.

[0028] The front protective cover 5 is made of transparent material and does not obstruct the worker's vision when worn.

[0029] The upper protective cover 6 is made of high-strength plastic material and has an arc-shaped structure. It bends inward with the line segment formed between the left and right ends of the top of the front protective cover 5 as the axis to ensure full coverage protection for the worker's forehead.

[0030] The implementation principle of this embodiment is as follows: When the worker puts on the helmet, the limiting beam 4 is first placed at the front end of the brim of the safety helmet 7. Then, the position of the hanging rod 1 is adjusted so that it is flush with the brim of the safety helmet 7 on the horizontal plane. Then, force is applied to the force-applying frame 23, causing the opening of the elastic clip 21 to open and allowing the anti-slip rubber layers 24 on the upper and lower sides to contact the brim of the safety helmet 7. Then, the force-applying frame 23 is released, allowing the elastic clip 21 to close naturally. The anti-slip rubber layers 24 tightly press against and clamp the brim of the safety helmet 7, making it difficult for it to slide in the horizontal direction. At this time, the two elastic clips 21 and the limiting beam 4 cooperate to form a three-point coordinated vertical limiting. Then, the two rotating shafts 11 are rotated so that the suction cup 32 fully contacts the brim of the safety helmet 7 for adsorption and fixation, thereby forming a four-point coordinated horizontal limiting with the two anti-slip rubber layers 24. Together, they construct a three-dimensional spatial constraint system to prevent structural separation. At this time, the front protective cover 5 and the upper protective cover 6 at the front end of the hanging rod 1 jointly protect the worker's face and can be installed on a conventional safety helmet without damage and with stability.

[0031] It will be apparent to those skilled in the art that this application is not limited to the details of the exemplary embodiments described above, and that this application can be implemented in other specific forms without departing from its essential characteristics. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this application is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this application. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A protective face shield that can be fixed to a safety helmet, comprising a hanging rod (1), characterized in that: There are two hanging rods (1). A front protective cover (5) is fixedly installed on one side end of the two hanging rods (1). An upper protective cover (6) is installed on the top of the front protective cover (5). A limiting beam (4) is provided between the two hanging rods (1) near the front protective cover (5). A clamping limiting member (2) and an adsorption limiting member (3) are also provided on the hanging rods (1) along the axial direction. The two hanging rods (1) are parallel to each other and are located on the left and right sides of the brim of the outer safety helmet (7) when worn. The clamping limiting member (2) and the adsorption limiting member (3) are connected and fixed to the brim inward. The limiting beam (4) is perpendicular to the hanging rods (1) and is mounted on the top of the front end of the brim of the outer safety helmet (7) when worn.

2. A protective face shield that can be fixed to a safety helmet according to claim 1, characterized in that: The clamping and limiting component (2) includes an elastic clip (21). The elastic clip (21) has a U-shaped structure with its opening facing inward and tending to close in its natural state, thereby clamping one side of the brim of the external safety helmet (7). The top and bottom of the elastic clip (21) form hinges (22), and a force-applying frame (23) is hinged on the hinge (22). After the elastic clip (21) is clamped, it works with the limiting beam (4) to limit the vertical movement of the front protective cover (5) at three points.

3. A protective face shield that can be fixed to a safety helmet according to claim 2, characterized in that: The elastic opening and closing range of the opening position of the elastic clip (21) is 0 to 4 cm, and a layer of anti-slip rubber layer (24) is fixedly provided on the inner side of both ends of the opening position. The thickness of the anti-slip rubber layer (24) is 0.5 cm.

4. A protective face shield that can be fixed to a safety helmet according to claim 3, characterized in that: The adsorption limiting component (3) includes a connecting frame (31) and a suction cup (32). The hanging rod (1) has a rotating shaft (11) at one end away from the front protective cover (5). The connecting frame (31) has a U-shaped structure. One end of it is fixedly connected to the rotating shaft (11), and the other end is fixedly connected to the suction cup (32). The adsorption end of the suction cup (32) faces downward to adsorb the brim of the external safety helmet (7). The suction cup (32) works with an elastic clip (21) with an anti-slip rubber layer (24) to limit the horizontal movement of the front protective cover (5) at four points.

5. A protective face shield that can be fixed to a safety helmet according to claim 1, characterized in that: The front protective cover (5) is made of transparent material.

6. A protective face shield that can be fixed to a safety helmet according to claim 1, characterized in that: The upper protective cover (6) is made of high-strength plastic material. The upper protective cover (6) has an arc-shaped structure and is bent inward with the line segment formed between the left and right ends of the top of the upper protective cover (5) as the axis.

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