Safety helmet with protective mask

Abstract

The utility model discloses a safety helmet with a protective mask, which belongs to the field of labor protection appliances and comprises a helmet body, a protective mask and a protective mask. The two sides of the mask assembly are each provided with a connecting strip, the ends of the connecting strips are rotationally connected to the mounting blocks, and limiting after adjustment is achieved between the connecting strips and the mounting blocks through locking structures; the adjustable cap has the advantages that the elastic pin assembly and the pin groove are arranged to serve as a locking structure, the mask assembly is limited after adjustment, the problem that a cap needs to be removed when a worker takes food midway can be avoided, the mask assembly does not affect supply of the worker, and the adjustable cap is simple in structure and convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of labor protection equipment, specifically to a safety helmet with a protective face shield. Background Technology

[0002] Traditional safety helmets are protective gear designed to prevent head injuries from impacts. They consist of a shell, liner, chin strap, and rear band. The shell is hemispherical, sturdy, smooth, and has a degree of elasticity; the impact and penetrating kinetic energy of the striking object is primarily absorbed by the shell.

[0003] In the construction industry, safety helmets are essential personal protective equipment. However, during work, conventional safety helmets can only protect the head and cannot prevent dust from flying. Dust entering the eyes can not only harm the workers' health but also affect the construction progress.

[0004] Later, some safety helmets with face shields appeared, solving the above problems. However, they also had new problems. Most face shields only had two states: fully lowered and fully raised. The angle of the face shield could not be adjusted. Physical labor is very physically demanding, and the intervals between meals are also very long. Therefore, workers would take short breaks during work to replenish food and water. It would be troublesome to take off the safety helmet at this time. If the existing safety helmets with face shields were not removed, it would greatly affect the replenishment of food and water for workers during construction. Furthermore, the fully lowered and fully raised states did not have a locking structure. The state was fixed only by the weight of the face shield or friction. Over time, the friction effect would decrease, making it very unstable.

[0005] Therefore, we propose a safety helmet with a protective face shield. Summary of the Invention

[0006] To address the aforementioned shortcomings of the existing technology, this utility model provides a safety helmet with a protective face shield.

[0007] To achieve the above-mentioned objectives, the technical solution adopted by this utility model is as follows:

[0008] A safety helmet with a protective face shield includes: a helmet body with a horizontal brim and two mounting blocks opposite each other on the brim;

[0009] The mask assembly has a connecting strip on each side, and the end of the connecting strip is rotatably connected to the mounting block. The connecting strip and the mounting block are locked together by a locking structure to achieve the adjusted limit.

[0010] The face mask assembly and the mounting block on the brim are rotatably connected by a connecting strip, and a locking structure is set to limit the movement between the connecting strip and the mounting block. This allows workers to flip the face mask assembly upwards during breaks in construction to replenish food and water. The face mask assembly will remain flipped up due to the locking device and will not flip downwards freely. The face mask assembly will not affect the worker's eating, avoiding the problem of removing the safety helmet for eating and improving convenience.

[0011] Further defining the locking structure, it includes a pin groove and a spring pin assembly. The pin groove is evenly spaced around the rotation point of the connecting strip and is circumferentially opened on the mounting block. The spring pin assembly is located inside the connecting strip, corresponding to the position of the pin groove. By setting the pin groove and spring pin assembly as the locking structure, the spring pin is inserted into the pin groove to lock. The structure is simple and easy to use.

[0012] Further defining the spring pin assembly, it includes a pin head, a pin hole, an anti-detachment block, an ejection spring, a sealing cap, a first through post, and a second through post. The pin hole is located on the connecting strip and extends through both the inner and outer ends of the connecting strip. The pin hole is a stepped hole with a smaller inner diameter and a larger outer diameter. The head and groove of the pin head are both spherical and matched. The tail of the pin head is fixedly connected to the anti-detachment block. The outer diameter of the pin head and the inner diameter of the pin hole are in clearance fit, as are the outer diameter of the anti-detachment block and the outer diameter of the pin hole. The first through post is fixedly mounted on the anti-detachment block, and the second through post is mounted opposite to the first through post on the sealing cap. The two ends of the ejection spring are respectively connected to the first and second through posts. The sealing cap is threadedly connected to the pin hole. When the sealing cap is fully screwed into the pin hole, the pin head is ejected, and the ejection spring is in a pre-tightened state at this time.

[0013] By setting the pin hole as a stepped hole and setting an anti-detachment block to limit the pin head, the pin head is prevented from coming out of the pin hole. The ejector spring keeps the pin head in the extended state. When adjustment is needed, the faceplate assembly is pushed directly. The spherical pin head can easily disengage from the pin groove and enter the next pin groove to automatically lock. Adjustment is very convenient.

[0014] Further defining the mask assembly, it includes a mask strip and a mask plate. The two ends of the mask strip are fixedly connected to a connecting strip, and the mask plate is inserted and fixed inside the mask strip. The mask plate is easy to install by inserting it into the mask strip, and the mask plate can be replaced, making it convenient for maintenance and use.

[0015] Further, a slot is provided at the bottom of the cover strip along its length, and two wedge-shaped blocks are vertically provided at the top of the cover plate. The two wedge-shaped blocks face away from each other towards the outer and inner sides of the cover plate, respectively. The inner wall of the slot is hollowed out with a groove that matches the wedge-shaped blocks. A pusher is provided in the groove to push the wedge-shaped blocks out of the groove. The two ends of the pusher are fixedly connected to the two side walls of the groove. Both the cover plate and the pusher are made of deformable material. By setting the groove and wedge-shaped blocks in the hollowed-out inner wall of the slot, the cover plate is limited in insertion, preventing the cover plate from falling freely. When it is necessary to remove the cover plate, press the pusher in the groove to push the wedge-shaped blocks, causing them to deform and disengage from the groove. At this time, the cover plate can be removed manually. The structure is simple and easy to use.

[0016] Further defining the design, the wedge-shaped locking block is located in the middle of the cover plate, and the slot is also located in the middle of the slot. The outer side of the push block protrudes from the surface of the cover plate. By placing both the wedge-shaped locking block and the slot in the middle, the force on both sides of the cover plate and the cover strip is more even. Furthermore, the fact that the push block protrudes from the surface of the cover plate makes it easier for personnel to press it.

[0017] The beneficial effects of this utility model are as follows: by setting the spring pin assembly and pin groove as a locking structure, the mask assembly is adjusted and limited, which can avoid the problem of workers needing to take off their hats when eating in the middle, and the mask assembly will not affect the workers' replenishment. The structure is simple and easy to use. Attached Figure Description

[0018] Figure 1 This is a partial sectional view from the frontal view of this utility model;

[0019] Figure 2 This is a top view of the present invention;

[0020] Figure 3 This is the left view of the cover strip;

[0021] Figure 4 This is a schematic diagram of the spring pin assembly;

[0022] Figure 5 for Figure 1 An enlarged schematic diagram of part A in the middle.

[0023] The symbols for each component are as follows:

[0024] 1. Hat body, 11. Hat brim, 12. Mounting block, 2. Face mask assembly, 21. Cover strip, 211. Slot, 212. Push block, 213. Cover plate, 22. Wedge-shaped block, 221. Locking structure, 3. Pin groove, 31. Spring pin assembly, 32. Pin head, 321. Pin hole, 322. Anti-detachment block, 323. Push-out spring, 324. Sealing cap, 325. First through-pin, 326. Second through-pin, 327. Connecting strip, 4. Detailed Implementation

[0025] The specific embodiments of this utility model are described below to enable those skilled in the art to understand this utility model. However, it should be understood that this utility model is not limited to the scope of the specific embodiments. For those skilled in the art, as long as various changes are within the spirit and scope of this utility model as defined and determined by the appended claims, these changes are obvious. All utility model creations utilizing the concept of this utility model are within the scope of protection.

[0026] Example:

[0027] like Figures 1-5As shown, a safety helmet with a protective face shield includes a helmet body 1, a face shield assembly 2, and a locking structure 3. The helmet body 1 has a horizontal brim 11, on which two mounting blocks 12 are arranged opposite each other. The face shield assembly 2 has a connecting strip 4 on each side, the ends of which are rotatably connected to the mounting blocks 12. The locking structure 3 achieves adjustable positioning between the connecting strips 4 and the mounting blocks 12. The locking structure 3 includes a pin groove 31 and a spring-loaded pin assembly 32. The pin groove 31 is evenly spaced circumferentially on the mounting blocks 12 around the rotation point of the connecting strip 4. The spring-loaded pin assembly 32 is positioned within the connecting strip 4 corresponding to the position of the pin groove 31. The spring-loaded pin assembly 32 includes... The connector includes a pin head 321, a pin hole 322, an anti-detachment block 323, an ejector spring 324, a sealing cap 325, a first through-pin 326, and a second through-pin 327. The pin hole 322 is formed on the connecting strip 4 and extends through both the inner and outer end faces of the connecting strip 4. The pin hole 322 is a stepped hole with a smaller inner diameter and a larger outer diameter. The head of the pin head 321 and the pin groove 31 are both spherical and matched. The tail of the pin head 321 is fixedly connected to the anti-detachment block 323. The outer diameter of the pin head 321 and the inner diameter of the pin hole 322 are in clearance fit, and the outer diameter of the anti-detachment block 323 and the outer diameter of the pin hole 322 are in clearance fit. The first through-pin 326 is fixedly installed on the connecting strip 4. On the anti-detachment block 323, the second through post 327 and the first through post 326 are respectively disposed on the sealing cap 325. The two ends of the ejector spring 324 are respectively connected to the first through post 326 and the second through post 327. The sealing cap 325 is threadedly connected to the pin hole 322. When the sealing cap 325 is fully screwed into the pin hole 322, the pin head 321 is ejected and the ejector spring 324 is in a pre-tightened state. The mask assembly 2 includes a cover strip 21 and a cover plate 22. The two ends of the cover strip 21 are respectively fixedly connected to the connecting strip 4. The cover plate 22 is inserted and fixed in the cover strip 21. The bottom of the cover strip 21 has a slot 211 along the length direction. The top of the 2 is vertically provided with two wedge-shaped blocks 221, which face away from each other and are located on the outer and inner sides of the cover plate 22, respectively. The inner wall of the slot 211 is hollowed out with a slot 212 that matches the wedge-shaped blocks 221. The slot 212 is provided with a pusher 213 for pushing the wedge-shaped blocks 221 out of the slot 212. The two ends of the pusher 213 are fixedly connected to the two side walls of the slot 212. The cover plate 22 and the pusher 213 are both made of deformable material. The wedge-shaped blocks 221 are located in the middle of the cover plate 22, and the slot 212 is also located in the middle of the slot 211. The outer side of the pusher 213 protrudes from the surface of the cover plate 22.

[0028] The face mask assembly 2 and the mounting block 12 on the brim 11 are rotatably connected by the connecting strip 4. A locking structure 3 limits the movement between the connecting strip 4 and the mounting block 12, allowing workers to flip the face mask assembly 2 upwards during breaks to replenish food and water. The locking device prevents the face mask assembly 2 from flipping downwards, ensuring it doesn't interfere with eating and avoiding the need to remove the helmet for convenience. The locking structure 3 uses a pin groove 31 and a spring pin assembly 32, with the spring pin inserted into the pin groove 31 for locking. The structure is simple and easy to use. The pin hole 322 is a stepped hole, and an anti-detachment block 323 limits the pin head 321, preventing it from dislodging from the pin hole 322. A push-out spring 324 keeps the pin head 321 in the extended position, allowing for easy adjustment. When the cover assembly 2 is pushed, the spherical pin 321 easily disengages from the pin groove 31 and automatically locks itself into the next pin groove 31, making adjustment very convenient. The cover plate 22 is easily installed by inserting it into the cover strip 21, and the cover plate 22 can be replaced for easy maintenance. A slot 212 and a wedge-shaped locking block 221 are provided in the inner wall of the slot 211 to lock the cover plate 22, preventing it from falling freely. When the cover plate 22 needs to be removed, the push block 213 in the slot 212 is pressed to push the wedge-shaped locking block 221, causing it to deform and disengage from the slot 212. The cover plate 22 can then be manually removed. The structure is simple and easy to use. The wedge-shaped locking block 221 and the slot 212 are both located in the middle, making the force on both sides of the cover plate 22 and the cover strip 21 more even. The push block 213 protrudes from the surface of the cover plate 22 for easy pressing.

Claims

1. A safety helmet with a protective visor, characterized in that, The utility model relates to a face mask assembly and a cap with the same, and belongs to the technical field of caps. The cap (1) comprises a cap body (1) and a horizontal brim (11) provided on the edge of the cap body (1), and two mounting blocks (12) are oppositely arranged on the brim (11). The face mask assembly (2) comprises a mask strip (21) and a mask plate (22), and the two ends of the mask strip (21) are fixedly connected with the connecting strips (4), respectively. The locking structure (3) comprises a pin groove (31) and a pin assembly (32), the pin groove (31) is evenly and circularly arranged on the mounting block (12) around the rotating point of the connecting strip (4), and the pin assembly (32) is arranged in the connecting strip (4) corresponding to the position of the pin groove (31).

2. The hard hat with a protective visor of claim 1, wherein, The pin assembly (32) comprises a pin head (321), a pin hole (322), an anti-dropping block (323), an ejection spring (324), a sealing cap (325), a first penetrating column (326) and a second penetrating column (327), the pin hole (322) is arranged on the connecting strip (4) and penetrates through the inner and outer end faces of the connecting strip (4), the pin hole (322) is a stepped hole with a small inner diameter and a large outer diameter, the head of the pin head (321) and the pin groove (31) are both spherical, the tail of the pin head (321) is fixedly connected with the anti-dropping block (323), the outer diameter of the pin head (321) and the inner diameter of the pin hole (322) are in clearance fit, the outer diameter of the anti-dropping block (323) and the outer diameter of the pin hole (322) are in clearance fit, the first penetrating column (326) is fixedly arranged on the anti-dropping block (323), the second penetrating column (327) is oppositely arranged on the sealing cap (325) with the first penetrating column (326), the two ends of the ejection spring (324) are respectively penetrated through the first penetrating column (326) and the second penetrating column (327), the sealing cap (325) is threadedly connected with the pin hole (322), when the sealing cap (325) is completely screwed into the pin hole (322), the pin head (321) is ejected, and at this time, the ejection spring (324) is in a pre-tightening state.

3. The hard hat with a face shield of claim 2, wherein, The face mask assembly (2) comprises a mask strip (21) and a mask plate (22), and the two ends of the mask strip (21) are fixedly connected with the connecting strips (4), respectively.

4. The hard hat with a face shield of claim 3, wherein, The bottom of the cover strip (21) is provided with a slot (211) along the length direction, the top of the cover plate (22) is vertically provided with two wedge-shaped clamping blocks (221), the two wedge-shaped clamping blocks (221) are respectively opposite to the outer side and the inner side of the cover plate (22), the inner wall of the slot (211) is hollowed out and provided with a clamping groove (212) matched with the wedge-shaped clamping block (221), the clamping groove (212) is provided with a push block (213) for pushing the wedge-shaped clamping block (221) out of the clamping groove (212), the two ends of the push block (213) are fixedly connected to the two side groove walls of the clamping groove (212), and the cover plate (22) and the push block (213) are made of a deformable material.

5. The hard hat with a face shield of claim 4, wherein, The wedge-shaped clamping block (221) is arranged at the middle part of the cover plate (22), the clamping groove (212) is also arranged at the middle part of the slot (211), and the outer side surface of the push block (213) is arranged to protrude from the surface of the cover plate (22).

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