Engineering safety helmet

Abstract

The engineering safety helmet comprises a helmet shell and a support, and the support comprises a fixing ring and a plurality of elastic clamping plates; all the elastic clamping plates are connected to form an inner buckle cap; a movable isolation cavity is formed between the inner buckle cap and the inner side wall of the cap shell; the adjusting belt is mounted in the movable isolation cavity; the engineering safety helmet is simple in structure, the adjusting belt is independently arranged in the movable isolation cavity between the inner buckle cap and the helmet shell, and dust and other foreign matter can be effectively prevented from entering the helmet to affect adjustment of the adjusting belt; the elastic clamping plate can be adjusted according to the sizes of head circumferences of different wearers so as to adapt to different head types, better fitting performance and supporting performance are provided, meanwhile, force can be dispersed when the elastic clamping plate is impacted, and harm to the head is reduced; when the first end and the second end of the adjusting belt are adjusted in place, the fastener passes through the fixing hole and the corresponding adjusting hole and then is in threaded connection and fixation with the threaded hole in a matched mode, it can be guaranteed that the adjusted size is stable and not prone to loosening, and stable protection is provided.

Description

Technical Field

[0001] This utility model relates to the field of construction safety products technology, and more specifically, to an engineering safety helmet. Background Technology

[0002] Construction safety helmets are a type of personal protective equipment (PPE) primarily used for head protection of workers in industries such as construction, engineering, mining, and manufacturing. They reduce the risk of accidental injuries such as falling objects from heights, head impacts, abrasions, or scratches.

[0003] Some common safety helmets have limited size adjustment range and cannot accommodate people with different head circumferences. Therefore, a new type of safety helmet has emerged on the market. For example, patent number CN202120874061.6 discloses a construction engineering safety helmet, which includes a shrink ring and an adjustment component. The shrink ring has a notch. The shrink ring has a top cover and a fixing ring. The adjustment component includes: a stabilizing hole on the outer circular wall of the top cover, fixing grooves at both ends of the notch on the shrink ring, shrink blocks fixedly installed inside the fixing grooves, and locking grooves on the two sides of the shrink blocks that are close to each other. The fixing block is movably sleeved on the outside of the two shrink blocks. The fixing block is rectangular and hollow with open sides, and a side hole is opened on the left side of the fixing block. A gear is set on the two sides of the two fixing grooves that are close to each other. A rotating column is fixedly installed on the side of the gear that is close to the side hole. The rotating column has a cylindrical structure.

[0004] By adopting the above technical solution and setting a rotating column, construction workers can rotate the rotating column when wearing a safety helmet. The rotating column drives the gear to rotate, and the gear teeth mesh inside the locking groove, causing the two shrink blocks to move to opposite ends. This shrinks the inner ring of the shrink ring until it shrinks to the optimal position for the construction worker's head. The fixing block wraps the two shrink blocks together, preventing them from separating due to slight vibrations. This improves the meshing degree between the gear and the locking groove and prevents the adjustment component from falling off. Although the above structure can adjust the internal size of the safety helmet, the meshing part of the gear and locking groove may be worn or jammed due to the intrusion of dust, dirt or other building materials, resulting in an insecure fit. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide an engineering safety helmet that addresses the above-mentioned deficiencies of the prior art.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: an engineering safety helmet, including a helmet shell and a support, wherein the support includes a fixing ring fixedly installed on the inner top surface of the helmet shell, and a plurality of elastic clips extending from below the fixing ring toward the opening direction of the helmet shell; all the elastic clips are connected to form an inner buckle; a movable isolation cavity is provided between the inner buckle and the inner sidewall of the helmet shell; an adjustment strap is installed in the movable isolation cavity; all the elastic clips and the fixing ring surround to form a wearing cavity; the safety helmet also includes an adjustment strap and fasteners; a first end of the adjustment strap is fixedly connected to one of the elastic clips; a second end of the adjustment strap passes around the outside of all the elastic clips and overlaps at least partially with the outer sidewall of its first end; the adjustment strap adjusts the spacing between the plurality of elastic clips by adjusting the overlap length between the first end and the second end; the second end is provided with a plurality of adjustment holes along its length; the helmet shell is provided with a fixing hole for the fastener to pass through and corresponding to any of the adjustment holes; the first end is provided with a threaded hole corresponding to the fixing hole and threadedly connected to the fastener.

[0007] The engineering safety helmet of this utility model includes a sliding groove on one side of the fixing hole on the helmet shell, which communicates with the inner cavity and extends along the length direction of the adjustment belt; a sliding part is fixedly protruding on the outer side wall of the second end, which is slidably connected to the sliding groove; and a toggle block is fixedly connected to the sliding part on the outside of the helmet shell.

[0008] In the engineering safety helmet of this utility model, the sliding groove and the fixing hole are both located on the same side of the helmet shell;

[0009] The engineering safety helmet of this utility model has an outwardly convex arc-shaped structure for the elastic clip.

[0010] The engineering safety helmet of this utility model has a first elastic pad layer fixedly provided on the outer wall of the movable isolation cavity located at the lower end of the elastic clamp.

[0011] The engineering safety helmet of this utility model has a second elastic pad corresponding to a plurality of first elastic pads circumferentially provided on the inner sidewall of the helmet shell.

[0012] The engineering safety helmet of this utility model has at least one through hole on the elastic clamp that communicates with the movable isolation cavity.

[0013] The beneficial effects of this utility model are as follows: The safety helmet has a simple structure. By setting the adjustment strap separately in the movable isolation cavity between the inner cap and the shell, it can effectively prevent dust and other foreign objects from entering the helmet and affecting the adjustment of the adjustment strap. The elastic clip can be adjusted according to the head circumference of different wearers to adapt to different head shapes, providing better fit and support. At the same time, it can disperse the force when impacted, reducing the injury to the head. When the first and second ends of the adjustment strap are adjusted to the correct position, the fastener is fixed by threaded connection through the fixing hole, the corresponding adjustment hole and the threaded hole, which can ensure that the adjusted size is stable and not easy to loosen, providing stable protection. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. The drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the internal structure of an engineering safety helmet according to a preferred embodiment of the present invention;

[0016] Figure 2 This is a schematic diagram of the external structure of an engineering safety helmet according to a preferred embodiment of the present invention. Detailed Implementation

[0017] The terms "first," "second," "third," and "fourth," etc., used in the specification, claims, and accompanying drawings of this invention are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or apparatuses.

[0018] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0019] "Multiple" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0020] Furthermore, the terms indicating orientation, such as "up, down, front, back, left, right, upper end, lower end, longitudinal," etc., are all based on the posture and position of the device or equipment described in this solution during normal use.

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, a clear and complete description will be provided below in conjunction with the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the protection scope of the present invention.

[0022] A preferred embodiment of this utility model provides an engineering safety helmet, such as... Figure 1 As shown, the helmet includes a shell 11 and a support 12. The support 12 includes a fixing ring 121 fixedly installed on the inner top surface of the shell 11, and a plurality of elastic clips 122 extending from below the fixing ring 121 toward the opening of the shell 11. In this embodiment, the support 12 is made of plastic in one piece, or it can be made of metal sheet material as used in the prior art. The elastic clips 122 have an outwardly convex arc-shaped structure. All the elastic clips 122 and the fixing ring 121 enclose a wearing cavity 01. The helmet also includes an adjustment strap 13 and fasteners 14. All the elastic clips 122 are connected to form an inner buckle cap. A movable isolation cavity 02 is provided between the inner buckle cap and the inner sidewall of the shell 11. The adjustment strap 13 is installed in the movable isolation cavity 02. The adjustment strap 13 is... One end 131 is fixedly connected to the outer wall of one of the elastic clamps 122; the second end 132 of the adjusting band 13 wraps around the outer side of all the elastic clamps 122 and overlaps at least partially with the outer wall of its first end 131; the adjusting band 13 adjusts the spacing between the multiple elastic clamps 122 by adjusting the overlap length between the first end 131 and its second end 132; the second end 132 is provided with multiple adjusting holes 133 along its length; the cap 11 is provided with a fixing hole 111 through which the fastener 14 passes and which corresponds to any adjusting hole 133; the first end 131 is provided with a threaded hole 134 corresponding to the fixing hole 111 and threadedly connected to the fastener 14; in this embodiment, the fastener 14 is a screw structure provided in the prior art.

[0023] The safety helmet used in this project has a simple structure. By placing the adjustment strap separately in the movable isolation cavity between the inner cap and the shell, it can effectively prevent dust and other foreign objects from entering the helmet and affecting the adjustment of the strap. The elastic clip can be adjusted according to the head circumference of different wearers to adapt to different head shapes, providing better fit and support. At the same time, it can disperse the force in the event of an impact, reducing head injury. When the first and second ends of the adjustment strap are adjusted to the correct position, the fasteners are threaded together through the fixing holes, the corresponding adjustment holes, and the threaded holes to ensure that the adjusted size is stable and not easy to loosen, providing stable protection.

[0024] Furthermore, the helmet shell 11 has a groove 112 on one side of the fixing hole 111, which communicates with the inner cavity and extends along the length of the adjusting strap 13; the outer wall of the second end 132 is fixedly provided with a sliding part that is slidably connected to the groove 112; the helmet shell 11 is provided with a toggle block 113 fixedly connected to the sliding part; the groove and the sliding part make the length adjustment of the adjusting strap more intuitive and convenient. After wearing the helmet, the user can quickly adjust the tightness of the helmet by sliding the toggle block in the groove, and then use fasteners to connect and fix the first and second ends of the adjusting strap. The groove provides a fixed path, allowing the sliding part to move smoothly in one direction, thereby achieving precise size adjustment; it is easy to use.

[0025] Furthermore, the slide groove 112 and the fixing hole 111 are both located on the same side of the cap 11.

[0026] Furthermore, in order to prevent the free end of the elastic splint 122 from easily breaking, a first elastic pad 15 is fixedly provided on the outer wall of the lower end of the elastic splint 122 in the movable isolation cavity 02; it can not only provide a certain support force to the elastic splint 122, but also effectively disperse the impact force when subjected to external impact, reducing the injury to the head.

[0027] Furthermore, the inner sidewall of the helmet shell 11 is provided with second elastic pads 16 corresponding to the plurality of first elastic pads 15. This can provide additional cushioning, reduce the direct pressure of the helmet on the head, and thus improve wearing comfort; moreover, the first and second elastic pads have good shock absorption properties, which can absorb the vibrations generated by the wearer during activities and reduce the impact on the head.

[0028] Furthermore, the elastic clip 122 is provided with at least one through hole (not shown in the figure) that communicates with the movable isolation cavity 02; the through hole allows air to flow inside and outside the movable isolation cavity, thereby improving the breathability of the helmet, reducing head sweating, and increasing the wearer's comfort.

[0029] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. An engineering safety helmet, comprising a helmet shell and a support, characterized in that, The bracket includes a fixing ring fixedly installed on the inner top surface of the helmet shell, and a plurality of elastic clips extending from below the fixing ring toward the opening of the helmet shell; all the elastic clips are connected to form an inner cap; a movable isolation cavity is provided between the inner cap and the inner sidewall of the helmet shell; the safety helmet also includes an adjustment strap and fasteners; the adjustment strap is installed in the movable isolation cavity; all the elastic clips and the fixing ring surround to form a wearing cavity; a first end of the adjustment strap is fixedly connected to one of the elastic clips; a second end of the adjustment strap passes around the outside of all the elastic clips and overlaps at least partially with the outer sidewall of its first end; the adjustment strap adjusts the spacing between the plurality of elastic clips by adjusting the overlap length between the first end and the second end; the second end has a plurality of adjustment holes along its length; the helmet shell has a fixing hole for the fastener to pass through and corresponding to any of the adjustment holes; the first end has a threaded hole corresponding to the fixing hole and threadedly connected to the fastener.

2. The engineering safety helmet according to claim 1, characterized in that, The cap shell has a groove on one side of the fixing hole that communicates with its inner cavity and extends along the length of the adjusting belt; the outer side wall of the second end is fixedly provided with a sliding part that is slidably connected to the groove; the cap shell is provided with a toggle block that is fixedly connected to the sliding part.

3. The engineering safety helmet according to claim 2, characterized in that, The groove and the fixing hole are both located on the same side of the cap.

4. The engineering safety helmet according to any one of claims 1-3, characterized in that, The elastic clamp has an outwardly convex arc-shaped structure.

5. The engineering safety helmet according to claim 4, characterized in that, A first elastic pad is fixedly provided on the outer wall of the movable isolation cavity located at the lower end of the elastic clamp.

6. The engineering safety helmet according to claim 5, characterized in that, The inner sidewall of the cap is provided with a second elastic pad corresponding to a plurality of the first elastic pads.

7. The engineering safety helmet according to claim 4, characterized in that, The elastic clamp is provided with at least one through hole that communicates with the movable isolation cavity.

Images