CN109497648B

CN109497648B - Safety helmet

Info

Publication number: CN109497648B
Application number: CN201811426984.4A
Authority: CN
Inventors: 李朝; 赵增海
Original assignee: Hebei Jiacheng Electric Technology Co ltd
Current assignee: Hebei Jiacheng Electric Technology Co ltd
Priority date: 2018-11-27
Filing date: 2018-11-27
Publication date: 2021-07-27
Anticipated expiration: 2038-11-27
Also published as: CN109497648A

Abstract

The invention relates to a safety helmet which comprises a helmet shell, wherein a heat dissipation assembly is arranged at the top of the helmet shell, a helmet shell size adjusting assembly is arranged at the rear end of the helmet shell, a lining is arranged on the inner side of the helmet shell, a gap is formed between the helmet shell and the lining, an annular block communicated with the gap is fixed at the top of the helmet shell, the heat dissipation assembly comprises a supporting plate, a protective box, an air suction hose and an air suction hard tube, the protective box is fixed at the top of the supporting plate, an exhaust fan is arranged in the protective box, and the exhaust fan is connected with one end of the air suction hose. The invention aims to enable the safety helmet to have the advantages of good heat dissipation effect, capability of adjusting the size of the safety helmet according to different head sizes and firm fixation.

Description

Safety helmet

Technical Field

The invention relates to the technical field of safety protection articles for construction sites, in particular to a safety helmet.

Background

In the construction process of industrial and civil buildings, the safety factor is a link which cannot be ignored. Therefore, people design various protective devices, such as safety clothes, safety helmets and the like, which can play a good role in protecting people, and particularly has an obvious role in protecting the heads of people.

Among the prior art, because construction worker's manual labor time is long and lead to the head to produce a large amount of sweat, because the safety helmet heat dissipation is poor, take quite sultry, the travelling comfort is poor to because different people's head type size is different, and the safety helmet is for being suitable for all users, general safety helmet is great relatively for the head, thereby makes the safety helmet wear comparatively loose on workman's head, and the during operation drops easily, need wear repeatedly, influences workman's work efficiency.

Disclosure of Invention

In order to solve the problems in the prior art, the invention provides a safety helmet, and aims to provide the safety helmet with the advantages of good heat dissipation effect, capability of adjusting the size of the safety helmet according to different head shapes, and firm fixation.

In order to achieve the purpose, the invention adopts the technical scheme that:

the utility model provides a safety helmet, includes cap shell, lower cheek area, the front end of cap shell is equipped with the brim of a hat, lower cheek area with cap shell fixed connection, the rear end of cap shell is equipped with cap shell size adjusting part, the inboard of cap shell is equipped with the inside lining, the cap shell with form the space between the inside lining, set up nearly electric alarm on the lateral wall of cap shell, cap shell size adjusting part includes arc clamp plate, rectangle pole, rotary rod, the one end of arc clamp plate with the one end of rectangle pole is articulated to be connected, run through at the both ends of rectangle pole the rotary rod, the arc clamp plate with the cover has the second spring on the rectangle pole between the rotary rod, rectangle pole one end is fixed with the stopper, the rotary rod with the cap shell is connected, be equipped with the elastic layer on the inside wall of arc clamp plate.

Preferably, the bottoms of the two ends of the cap shell are provided with arc holes communicated with the gaps, and filter screens are arranged in the arc holes.

In any of the above schemes, preferably, the top of the rotating rod is fixed with a rotating shaft, two ends of the rotating shaft are rotatably connected with fixing blocks, and the fixing blocks are fixedly connected with the outer side wall of the cap shell.

In any of the above schemes, preferably, the fixing block is provided with a threaded hole, the rotating shaft is provided with a through limiting hole, the central line of the limiting hole is perpendicular to the axis of the rotating shaft, and the threaded hole is internally threaded with a locking screw extending into the limiting hole.

In any of the above schemes, preferably, the inner liner is provided with a plurality of ventilation holes, and a plurality of hemispherical protrusions are fixed on the inner side wall of the inner liner.

In any of the above aspects, preferably, the cap shell is fixedly connected to the liner by a plurality of fixing posts.

In any of the above schemes, preferably, a power supply, an electric quantity sensor and a controller are arranged in the cap shell, the power supply is connected with the electric quantity sensor, an indicating lamp and a power switch are arranged on the outer side wall of the cap shell, and the electric quantity sensor and the indicating lamp are connected with the controller.

The invention provides a use method of the safety helmet, which specifically comprises the following steps:

the method comprises the steps that firstly, whether the electric quantity of a power supply on the safety helmet is sufficient or not is checked, a power switch is turned on, whether an indicator lamp is turned on or not is checked, the indicator lamp is turned on to represent that the electric quantity is insufficient and charging is needed, and the safety helmet with the sufficient electric quantity can be replaced according to prompts;

when the safety helmet is worn, the arc-shaped pressing plate is manually pressed to enable the head to extend into the safety helmet, then the arc-shaped pressing plate is loosened, the safety helmet and the head are in a tightened state under the action of the spring, and therefore the safety helmet is not prone to falling off from the head;

thirdly, during heat dissipation, the hot air in the cap shell dissipates heat to the outside through the arc-shaped holes, and the filter screen can prevent outside dust from entering the cap shell to play a dustproof role;

and step four, when the transformer substation is approached, the approaching distance is smaller than the safety distance, and the electricity approaching alarm starts to give an alarm, so that the personal safety of workers is protected.

Compared with the prior art, the safety helmet provided by the invention has the following beneficial effects:

1. the near-electricity alarm is arranged on the helmet shell, so that an electric field signal nearby can be detected at any time, an alarm is started when a preset value is reached, the safety of workers is guaranteed, and the safety danger caused by the fact that the workers approach the transformer inadvertently is avoided;

2. through the arrangement of the size adjusting assembly of the helmet shell, the arc-shaped pressing plate can move relative to the helmet shell, the function of fixing the safety helmets with different sizes and head shapes is realized under the action of the spring, the problem that the safety helmets are easy to fall off to reduce the working efficiency and the safety during working is solved, and the rotating rod can rotate relative to the helmet shell, so that when workers do not need the arc-shaped pressing plate to fix the safety helmets, the rotating shaft can rotate 180 degrees, the arc-shaped pressing plate is positioned on the outer side of the helmet shell, and the helmet shell has the advantage of functional diversity;

3. through the arrangement of the arc-shaped holes, hot air between the cap shell and the lining can be dispersed to the outside through the arc-shaped holes, the heat dissipation effect is good, and the filter screen is arranged on the arc-shaped holes, so that dust in air can be filtered, and the dust is prevented from entering the cap shell;

4. through the setting of electric quantity sensor, pilot lamp, controller, can detect the electric quantity of power at any time, guaranteed that nearly electric alarm is in the power sufficient state, make it can normally work, guaranteed staff's personal safety.

Drawings

FIG. 1 is a schematic view of the overall internal structure of a preferred embodiment of the helmet of the present invention;

FIG. 2 is a schematic diagram of the overall structure of the embodiment shown in FIG. 1;

FIG. 3 is an enlarged view of a portion of A-A of the embodiment of FIG. 1;

fig. 4 is a schematic structural diagram of the filter screen in the embodiment shown in fig. 1.

The figures are labeled as follows: 1. a cap shell; 2. a liner; 3. fixing a column; 4. a fixed block; 5. air holes are formed; 6. locking the screw; 7. rotating the rod; 8. a rectangular bar; 9. a spring; 10. an arc-shaped pressing plate; 11. an elastic layer; 12. a lower buccal band; 13. an arc-shaped hole; 14. a near-electricity alarm; 15. and an indicator light.

Detailed Description

In order that the invention may be further understood, the invention will now be described in detail with reference to specific examples.

As shown in fig. 1 to 4, an embodiment of the safety helmet according to the present invention includes a helmet shell 1 and a lower cheek strap 12, a visor is disposed at a front end of the helmet shell 1, the lower cheek strap 12 is fixedly connected to the helmet shell 1, a size adjustment assembly of the helmet shell 1 is disposed at a rear end of the helmet shell 1, a lining 2 is disposed at an inner side of the helmet shell 1, a gap is formed between the helmet shell 1 and the lining 2, a near-electric alarm 14 is disposed on a side wall of the helmet shell 1, the size adjustment assembly of the helmet shell 1 includes an arc-shaped pressing plate 10, a rectangular rod 8, and a rotating rod 7, one end of the arc-shaped pressing plate 10 is hinged to one end of the rectangular rod 8, two ends of the rectangular rod 8 penetrate through the rotating rod 7, a second spring 9 is sleeved on the rectangular rod 8 between the arc-shaped pressing plate 10 and the rotating rod 7, one end of the rectangular rod 8 is fixed to a limit block, and the rotating rod 7 is connected to the helmet shell 1, and an elastic layer 11 is arranged on the inner side wall of the arc-shaped pressing plate 10.

The bottom of the two ends of the cap shell 1 is provided with arc holes 13 communicated with the space, and filter screens are arranged in the arc holes 13.

The top of rotary rod 7 is fixed with the pivot, the both ends of pivot are rotated and are connected with fixed block 4, fixed block 4 with 1 lateral wall fixed connection of cap shell.

The fixed block 4 is provided with a threaded hole, the rotating shaft is provided with a penetrating limiting hole, the central line of the limiting hole is perpendicular to the axis of the rotating shaft, and a locking screw 6 extending into the limiting hole is connected with the threaded hole in an internal thread mode.

The inner lining 2 is provided with a plurality of air holes 5, and a plurality of hemispherical bulges are fixed on the inner side wall of the inner lining 2.

The cap shell 1 is fixedly connected with the lining 2 through a plurality of fixing columns 3.

The cap shell is internally provided with a power supply, an electric quantity sensor and a controller, the power supply is connected with the electric quantity sensor, the outer side wall of the cap shell is provided with an indicator lamp and a power switch, and the electric quantity sensor and the indicator lamp are connected with the controller.

The invention also provides a use method of the safety helmet, which specifically comprises the following steps:

The working principle of the embodiment is as follows: when the helmet shell is worn on the head, the arc-shaped pressing plate moves towards the rear end of the helmet shell, the second spring is compressed, when the safety helmet is worn on the head, the spring applies pressure to the arc-shaped pressing plate to enable the arc-shaped pressing plate to extrude the head, the safety helmet and the head are in a tightened state, so that the safety helmet is not prone to falling off from the head, the function of fixing different heads is achieved, when the arc-shaped pressing plate is not needed to be fixed, the locking screw is screwed out of the threaded hole, then the rotating rod rotates 180 degrees, the locking screw is screwed into the threaded hole again and extends into the limiting hole in the rotating shaft, the function of preventing the rotating shaft from rotating is achieved, the electric quantity detected by the electric quantity sensor is transmitted to the controller, when the electric quantity is too low, the controller controls the indicator lamp to be on, and after the power switch is turned on, whether the power supply needs to be charged or replaced is judged through whether the indicator lamp is on, thereby ensuring whether the near-electricity alarm can work normally.

Compared with the prior art, the embodiment has the following beneficial effects:

through set up the spiral hard tube that induced drafts between cap shell and inside lining to a plurality of suction holes have been seted up on the hard tube that induced drafts, the air exhauster can pass through the outside of suction hole suction safety helmet with the steam of head, and external cold air gets into between cap shell and the inside lining through the arc hole, realizes the cooling function to the head, and the hard tube that induced drafts is the spiral and distributes, and the cover head scope is wide, realizes wholly dispelling the heat to the head in the safety helmet, and the radiating effect is good.

It will be understood by those skilled in the art that the headgear of the present invention includes any combination of the summary and detailed description of the invention described above and illustrated in the accompanying drawings, which is not intended to be limited to space and which has not been described in detail for the sake of brevity. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A safety helmet comprises a helmet shell and a lower cheek band, wherein the front end of the helmet shell is provided with a helmet brim, and the lower cheek band is fixedly connected with the helmet shell, and the safety helmet is characterized in that: the rear end of the cap shell is provided with a cap shell size adjusting assembly, the inner side of the cap shell is provided with a lining, a gap is formed between the cap shell and the lining, a near-electricity alarm is arranged on one side wall of the cap shell, the cap shell size adjusting assembly comprises an arc-shaped pressing plate, a rectangular rod and a rotating rod, one end of the arc-shaped pressing plate is hinged with one end of the rectangular rod, two ends of the rectangular rod penetrate through the rotating rod, a second spring is sleeved on the rectangular rod between the arc-shaped pressing plate and the rotating rod, one end of the rectangular rod is fixed with a limiting block, the rotating rod is connected with the cap shell, and an elastic layer is arranged on the inner side wall of the arc-shaped pressing plate;

a rotating shaft is fixed at the top of the rotating rod, two ends of the rotating shaft are rotatably connected with fixed blocks, and the fixed blocks are fixedly connected with the outer side wall of the cap shell; the fixed block is provided with a threaded hole, the rotating shaft is provided with a penetrating limiting hole, the central line of the limiting hole is perpendicular to the axis of the rotating shaft, and a locking screw extending into the limiting hole is connected with the threaded hole in an internal thread mode.

2. The headgear of claim 1, wherein: the bottom of the two ends of the cap shell is provided with arc holes communicated with the gaps, and filter screens are arranged in the arc holes.

3. The headgear of claim 1, wherein: the inner lining is provided with air holes, and a plurality of hemispherical bulges are fixed on the inner side wall of the inner lining.

4. The headgear of claim 1, wherein: the cap shell is fixedly connected with the lining through a plurality of fixing columns.

5. The headgear of claim 1, wherein: the cap shell is internally provided with a power supply, an electric quantity sensor and a controller, the power supply is connected with the electric quantity sensor, the outer side wall of the cap shell is provided with an indicator lamp and a power switch, and the electric quantity sensor and the indicator lamp are connected with the controller.

6. The method of using a safety helmet according to any of claims 1-5, wherein: the method specifically comprises the following steps: