CN210696142U - Safety helmet - Google Patents

Abstract

The utility model provides a safety helmet. The utility model discloses safety helmet includes: a hat shell, a hat hoop, earmuffs and a neck sleeve; the top of the cap shell is provided with a first air hole, and a first hole cover is arranged on the first air hole so as to open or close the first air hole; a second air hole is formed in the edge of the bottom of the cap shell, and a second hole cover is arranged on the second air hole to open or close the second air hole; the hat hoop is fixed in the hat shell, and the ear muffs and the neck cover are both detachably arranged between the hat shell and the hat hoop. When the temperature is high, the safety helmet of the utility model detaches the ear muffs and the neck cover, and opens the first air hole and the second air hole at the same time, so as to form an air flow channel in the helmet shell, reduce the temperature in the helmet shell and lead the head of a wearer to be cool and comfortable; when temperature is lower, install ear muff and neck cover between cap shell and cap hoop to close first gas pocket and second gas pocket simultaneously, make the person's of wearing head warm, can general throughout the year, improved person's of wearing travelling comfort, be favorable to improving the operating efficiency.

Description

Safety helmet

Technical Field

The utility model relates to a protective articles technical field especially relates to a safety helmet.

Background

At present, safety helmets are used in all industries, and wearing the safety helmets is the most basic measure for realizing safety production and protecting the safety of staff in modern enterprises. For example, when oil exploitation related work is carried out, a safety helmet is often needed to be worn, and the safety helmet can protect the head of a person when a dangerous situation occurs.

The safety helmet in the prior art comprises a helmet shell and a helmet liner arranged inside the helmet shell, wherein the helmet shell is mainly used for bearing striking to separate a falling object from a human body, and the helmet liner is used for fixing the safety helmet with the head of a worker; and a certain gap is formed between the cap liner and the cap shell. When the head of an operator is impacted by a falling object, the impact force is firstly decomposed to the whole area of the skull by the helmet shell and the helmet liner in the moment, and then most of the impact energy is absorbed by utilizing the elastic deformation, the plastic deformation and the allowable structural damage of the helmet buffer structure, so that the impact force finally applied to the head of the operator is reduced to a safe value, and the head of the operator is protected.

In the prior art, the cap shell is mostly made of hard plastic materials, which is not beneficial to heat dissipation, and when the cap shell works outdoors in summer, the gas in the cap shell is not circulated, so that the head of a wearer is hot; moreover, most of the hat lining is made of grid materials, the hat lining does not have a warm-keeping function, and the hat lining is poor in comfort when being used outdoors in winter, so that a wearer is easily subjected to cold and the working efficiency is low.

SUMMERY OF THE UTILITY MODEL

The utility model provides a safety helmet, which solves the problems that the existing safety helmet made of hard plastic is not beneficial to heat dissipation, and when the safety helmet works outdoors in summer, the air in the helmet shell is not circulated, so that the head of a wearer is hot; moreover, most of the hat lining is made of grid materials, the hat lining does not have a warm-keeping function, and the hat lining is poor in comfort when being used outdoors in winter, so that a wearer is easily subjected to cold and the working efficiency is low.

The utility model provides a safety helmet, it includes: a hat shell, a hat hoop, earmuffs and a neck sleeve; the top of the cap shell is provided with a first air hole, and a first hole cover is arranged on the first air hole so as to open or close the first air hole; a second air hole is formed in the edge of the bottom of the cap shell, and a second hole cover is arranged on the second air hole to open or close the second air hole; the hat hoop is fixed in the hat shell, and the ear muffs and the neck cover are detachably mounted between the hat shell and the hat hoop.

The safety helmet as described above, wherein the second air hole is plural, and the plural second air holes are circumferentially arranged along the bottom edge of the helmet shell.

The safety helmet is characterized in that first sliding grooves are formed in two sides of the first air hole, the first hole cover is provided with a first sliding rail matched with the first sliding grooves, and the first hole cover slides along the first sliding grooves to open or close the first air hole.

The safety helmet is characterized in that the two sides of the second air hole are respectively provided with a second sliding groove, the second hole cover is provided with a second sliding rail matched with the second sliding grooves, and the second hole cover slides along the second sliding grooves to open or close the second air hole.

The safety helmet as described above, wherein the ear cup and the neck cover are both snap-fitted between the helmet shell and the helmet band.

The safety helmet further comprises a controller, a dust concentration sensor and an alarm; the dust concentration sensor is arranged on the outer surface of the cap shell and used for detecting the dust concentration; the controller respectively with dust concentration sensor with the alarm electricity is connected, the controller is used for, when dust concentration sensor detects dust concentration and surpasss and predetermine dust concentration threshold value, control the alarm produces first alarm signal.

The safety helmet as above, wherein the alarm is one or more of a light alarm, a vibration alarm and a sound alarm.

The safety helmet further comprises a gas detection device, wherein the gas detection device is arranged on the outer surface of the helmet shell and used for detecting harmful gas; the gas detection device is electrically connected with the controller and the alarm respectively; the controller is further used for controlling the alarm to generate a second alarm signal when the concentration of the harmful gas exceeds a preset value of the concentration of the harmful gas.

The safety helmet further comprises a power detection device, wherein the power detection device is fixed on the helmet shell and used for detecting whether an electric field exists around the helmet shell; the electric power detection device is electrically connected with the controller and the alarm respectively; the controller is further used for controlling the alarm to generate a third alarm signal when the electric power detection device detects that an electric field exists around the cap shell.

The safety helmet further comprises a positioning device, and the positioning device is fixed in the helmet shell.

The utility model discloses safety helmet through set up first gas pocket at the cap shell top, and set up the second gas pocket at cap shell bottom edge, detachably installation ear muff and neck cover between cap shell and cap hoop, when temperature is higher, dismantle ear muff and neck cover, and open first gas pocket and second gas pocket simultaneously, form the air current passageway in the cap shell, reduce the temperature in the cap shell, make the person's of wearing head nice and cool comfortable; when the air temperature is low, the earmuffs and the neck sleeve are arranged between the helmet shell and the helmet hoop, and the first air hole and the second air hole are closed at the same time, so that the head of a wearer is warm. The utility model discloses safety helmet, the four seasons can be general, and the person of wearing can improve the person of wearing's travelling comfort according to external environment's temperature regulation, is favorable to improving the person of wearing's operating efficiency.

In addition to the technical problems, technical features constituting technical aspects, and advantageous effects brought by the technical features of the technical aspects described above, the present invention provides a safety helmet, and other technical problems that can be solved by the safety helmet, other technical features included in the technical aspects, and advantageous effects brought by the technical features, which will be described in further detail in the following detailed description.

Drawings

Fig. 1 is a schematic structural view of a safety helmet according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a safety helmet according to a second embodiment of the present invention;

fig. 3 is an electrical connection diagram of a safety helmet according to a third embodiment of the present invention;

fig. 4 is an electrical connection diagram of a safety helmet according to a fourth embodiment of the present invention;

fig. 5 is an electrical connection diagram of a safety helmet according to a fifth embodiment of the present invention;

fig. 6 is an electrical connection schematic diagram of a safety helmet according to an embodiment of the present invention.

Description of reference numerals:

10: a cap shell;

11: a brim;

12: a head lamp;

20: a cap band;

30: the earmuffs and the neck sleeve are integrated;

40: a first air hole;

50: a second air hole;

60: a dust concentration sensor;

70: a controller;

80: an alarm;

90: a gas detection device;

100: a power detection device;

110: a positioning device;

120: and (4) a terminal.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

Example one

Fig. 1 is a schematic structural view of a safety helmet according to an embodiment of the present invention.

Referring to fig. 1, a safety helmet according to an embodiment of the present invention includes: a hat shell 10, a hat hoop 20, ear muffs and a neck cover; the top of the cap housing 10 is provided with a first air hole 40, and a first hole cover (not shown) is provided on the first air hole 40 to open or close the first air hole 40; the bottom edge of the cap housing 10 is provided with a second air hole 50, and a second hole cover (not shown) is provided on the second air hole 50 to open or close the second air hole 50; the band 20 is fixed in the cap shell 10, and the ear muffs and the neck muffs are detachably mounted between the cap shell 10 and the band 20.

The safety helmet is a head protection device for preventing head collision when an object is hit and falls, when the head of an operator is impacted by a falling object, the impact force is firstly decomposed to the whole area of a skull in the moment by a safety helmet shell and a helmet liner, then most of impact energy is absorbed by utilizing the elastic deformation, the plastic deformation and the allowable structural damage of a safety helmet buffer structure, so that the impact force finally applied to the head of the operator is reduced to be below 4900N, and the head protection device plays a role in protecting the head of the operator. The shell material of the safety helmet plays an important role in the overall impact resistance of the safety helmet.

The helmet of the present embodiment includes a helmet shell 10, a helmet liner, a chin strap (not shown), a rear band (not shown), and the like. The helmet shell 10 includes a visor 11, a top rib (not shown), a chin strap mount (not shown), and the like. The visor 11 refers to a portion of the front of the cap shell 10 that protrudes; the top rib is used for enhancing the strength of the top of the hat shell; chin strap refers to a strap that is tied to the chin.

The lining is a general term for the internal components of the shell 10 and includes a band 20, a top band, a protective band, a support band, a sweat absorbing band, a pad, a tether, etc. Band 20 is a band that is secured around the head-surrounding portion; the supporting belt is a belt directly contacted with the top of the head; the protective belt is a belt which is additionally arranged on the supporting belt and does not contact the top of the head, and has a buffering effect; the rope (belt) is a rope (belt) for connecting the supporting belt with the protecting belt, the hat lining and the hat shell; the sweat absorbing belt is a belt-shaped sweat absorbing material wrapped outside the hat band; the gasket is a cushion which plays a role of buffering between the hat hoop and the hat shell; the rear hoop refers to an adjustable hoop which is added at the rear part of the hat hoop.

A first air hole 40 is provided at the top of the cap housing 10, and the first air hole 40 is a through hole penetrating the thickness of the cap housing 10, and may be an air hole of any shape, for example, the first air hole 40 may be a circular hole, an arc hole, or the like. The first air hole 40 is provided with a first hole cover, and the first hole cover can move relative to the first air hole 40 to open or close the first air hole.

There are various ways of connecting the first hole cover and the first air hole 40.

For example: the first air hole 40 is a circular hole, and the first hole cover is a circular plug structure, which is connected with the first air hole in an interference manner. When the air temperature is low, the first hole cover closes the first air hole 40, so that cold air is prevented from entering the inside of the cap shell 10, and the head of a wearer is kept warm. When the temperature is high, the first hole cover is opened, so that the interior of the helmet shell 10 is communicated with the outside atmosphere through the first air hole 40, and an air flow channel is formed in the helmet shell 10 by matching with the opened second air hole 50, so that the temperature in the helmet shell 10 is reduced, and the head of a wearer is cool and comfortable.

For another example: both sides of the first air hole 40 are provided with first sliding grooves (not shown), and the first hole cover is provided with a first sliding rail matched with the first sliding grooves and slides along the first sliding grooves to open or close the first air hole 40. The first sliding groove is located on the outer surface of the cap shell 10, the first hole cover is located on the outer surface of the cap shell 10, the first air hole 40 can be opened or closed by pushing the first hole cover, and the cap is simple in structure and convenient to operate.

Of course, the first hole cover and the first air hole 40 may be connected in other manners, which is not limited in the embodiment of the present invention.

The second air hole 50 is provided at the bottom edge of the cap housing 10, and the second air hole 50 is a through hole penetrating the thickness of the cap housing 10, and may be an air hole of any shape, for example, the second air hole 50 may be a circular hole, an arc hole, or the like. The second air hole 50 is provided with a second hole cover, which can move relative to the second air hole 50 to open or close the second air hole 50.

Regarding the number of the second air holes 50, as a preferred embodiment, the second air holes 50 are plural, and the plural second air holes 50 are circumferentially arranged along the bottom edge of the cap housing 10. The second air hole 50 may be three, four, five, etc., and the embodiment of the present invention does not limit this.

There are various ways of connecting the second hole cover and the second air hole 50.

For example, the second air hole 50 is a circular hole whose inner wall is provided with an internal thread, and the second hole cover may be a screw cap which is screw-coupled with the second air hole 50 to close the second air hole 50. When the air temperature is low, the second air hole 50 is closed by the second hole cover, and cold air is placed into the cap shell 10 to ensure that the head of the wearer is warm. When the temperature is high, the second hole cover opens the second air hole 50, so that the interior of the cap shell 10 is communicated with the atmosphere through the second air hole 50, and an air flow channel is formed in the cap shell 10 by matching with the opened first air hole 40, so that the temperature in the cap shell 10 is reduced, and the head of a wearer is cool and comfortable.

For another example: both sides of the second air hole 50 are provided with second sliding grooves (not shown), and the second hole cover is provided with second sliding rails engaged with the second sliding grooves, and slides along the second sliding grooves to open or close the second air hole 50. The second sliding groove is located on the outer surface of the cap shell 10, the second hole cover is located on the outer surface of the cap shell 10, the second air hole 50 can be opened or closed by pushing the second hole cover, and the cap is simple in structure and convenient to operate.

Of course, the second hole cover and the second air hole 50 may be connected in other manners, which is not limited in the embodiment of the present invention.

Further, when the air temperature is low, the ear muffs and the neck muffs are installed between the hat shell 10 and the hat hoop 20, so that the ears and the neck of the wearer can keep warm, wherein the ear muffs and the neck muffs are preferably integrally formed into a whole piece, and can be of a wool structure, a fur structure and the like, which is not limited herein. The earmuff and neck cover integrated member 30 is detachably mounted between the cap shell 10 and the band 20 to prevent wind and cold. When the temperature is high, the wearer can detach the ear muffs and the neck cover from the space between the hat shell 10 and the hat hoop 20, so that the wearer is prevented from getting hot.

As a preferred embodiment, the ear cup and the neck cover are mounted between the cap shell 10 and the cap band 20 by snap fasteners. Specifically, the integrated ear muff and neck cover member 30 is provided with a female button, the inner surface of the cap shell 10 is provided with a male button, and the integrated ear muff and neck cover member 30 is detachably mounted on the cap shell 10 through the male button and the female button. Of course, the earmuff and neck cover integrated piece 30 and the cap shell 10 can be detachably connected through a zipper, a magic tape and the like.

Different wearers have different constitutions and perceive the same temperature differently. The embodiment of the utility model provides a safety helmet, the person of wearing can improve user experience according to the switching of self actual conditions decision first gas pocket and second gas pocket and the dismantlement of ear muff and neck cover.

The embodiment of the utility model provides a safety helmet, through set up first gas pocket at the cap shell top, and set up the second gas pocket at the cap shell bottom edge, detachably installation ear muff and neck cover between cap shell and cap hoop, when temperature is higher, dismantle ear muff and neck cover, and open first gas pocket and second gas pocket simultaneously, form the air current passageway in the cap shell, reduce the temperature in the cap shell, make the person's head cool and comfortable; when the air temperature is low, the earmuffs and the neck sleeve are arranged between the helmet shell and the helmet hoop, and the first air hole and the second air hole are closed at the same time, so that the head of a wearer is warm. The embodiment of the utility model provides a safety helmet, the four seasons can be general, and the person of wearing can improve the person of wearing's travelling comfort according to external environment's temperature regulation, is favorable to improving the person of wearing's operating efficiency.

Example two

Fig. 2 is a schematic structural view of a safety helmet provided in the second embodiment of the present invention.

Referring to fig. 2, a safety helmet provided by the second embodiment of the present invention includes: a hat shell 10, a hat hoop 20, ear muffs and a neck cover; the top of the cap housing 10 is provided with a first air hole 40, and a first hole cover (not shown) is provided on the first air hole 40 to open or close the first air hole 40; the bottom edge of the cap housing 10 is provided with a second air hole 50, and a second hole cover (not shown) is provided on the second air hole 50 to open or close the second air hole 50; the band 20 is fixed in the cap shell 10, and the ear muffs and the neck muffs are detachably mounted between the cap shell 10 and the band 20. Wherein, both sides of the first air hole 40 are provided with first sliding grooves (not shown in the figure), the first hole cover is provided with a first sliding rail matched with the first sliding grooves, and the first hole cover slides along the first sliding grooves to open or close the first air hole 40. And the second air holes 50 are plural, and the plural second air holes 50 are circumferentially arranged along the bottom edge of the cap housing 10. Both sides of the second air hole 50 are provided with second sliding grooves (not shown), and the second hole cover is provided with second sliding rails engaged with the second sliding grooves, and slides along the second sliding grooves to open or close the second air hole 50. The earmuffs and the neck cover are both mounted between the shell 10 and the band 20 by snap fasteners.

Specifically, the helmet of the present embodiment includes a helmet shell 10, a helmet liner, a chin strap (not shown), a rear band (not shown), and the like. The helmet shell 10 includes a visor 11, a top rib (not shown), a chin strap mount (not shown), and the like. The visor 11 refers to a portion of the front of the cap shell 10 that protrudes; the top rib is used for enhancing the strength of the top of the hat shell; chin strap refers to a strap that is tied to the chin.

The safety helmet that this embodiment provided still includes the headlight 12 of fixing at the outer surface of bonnet shell 10, and headlight 12 is located the top of brim of a hat 11 for the illumination, the embodiment of the utility model provides a do not limit to the concrete structure of headlight 12.

In addition, the safety helmet provided by the embodiment further comprises a light sensor and a controller, wherein the controller is electrically connected with the light sensor and the driving circuit of the head lamp 12 respectively. The light sensor is used for detecting the brightness of light of the environment and sending a brightness detection signal to the controller, and the controller controls the brightness of the head lamp 12 according to the brightness detection signal of the light sensor. For example, when the external environment changes from bright to dark, the brightness of the headlight 12 changes from dark.

EXAMPLE III

Fig. 3 is a schematic structural view of a safety helmet provided by the third embodiment of the present invention.

The embodiment of the utility model provides a third safety helmet that provides includes: a hat shell 10, a hat hoop 20, ear muffs and a neck cover; the top of the cap housing 10 is provided with a first air hole 40, and a first hole cover (not shown) is provided on the first air hole 40 to open or close the first air hole 40; the bottom edge of the cap housing 10 is provided with a second air hole 50, and a second hole cover (not shown) is provided on the second air hole 50 to open or close the second air hole 50; the band 20 is fixed in the cap shell 10, and the ear muffs and the neck muffs are detachably mounted between the cap shell 10 and the band 20. Wherein, both sides of the first air hole 40 are provided with first sliding grooves (not shown in the figure), the first hole cover is provided with a first sliding rail matched with the first sliding grooves, and the first hole cover slides along the first sliding grooves to open or close the first air hole 40. And the second air holes 50 are plural, and the plural second air holes 50 are circumferentially arranged along the bottom edge of the cap housing 10. Both sides of the second air hole 50 are provided with second sliding grooves (not shown), and the second hole cover is provided with second sliding rails engaged with the second sliding grooves, and slides along the second sliding grooves to open or close the second air hole 50. The earmuffs and the neck cover are both mounted between the shell 10 and the band 20 by snap fasteners.

The safety helmet provided by the embodiment further comprises a controller 70, a dust concentration sensor 60 and an alarm 80; the dust concentration sensor 60 is provided on the outer surface of the cap case 10 for detecting the dust concentration; the controller 70 is electrically connected with the dust concentration sensor 60 and the alarm 80 respectively; the controller 70 is configured to control the alarm 80 to generate a first alarm signal when the dust concentration sensor 60 detects that the dust concentration exceeds a preset dust concentration threshold.

The dust concentration sensor 60 is configured to detect a dust concentration in a working environment of the wearer and send the detected dust concentration to the controller 70. The embodiment of the utility model provides a do not restrict dust concentration sensor 60's concrete structure. The controller 70 compares the received dust concentration with a preset dust concentration threshold, and when the received dust concentration is lower than or equal to the preset dust concentration threshold, the controller 70 does not act; when the received dust concentration exceeds the preset dust concentration threshold value, the controller 70 sends a control signal to the alarm 80, so that the alarm 80 sends a first alarm signal to remind a wearer of wearing the mask in time, and the dust is prevented from causing physical damage to the wearer.

The alarm 80 is one or more of a light alarm, a vibration alarm and an audible alarm, and is not limited herein. It should be noted that, the alarm 80 may send different alarm signals according to different control signals sent by the controller 70, for example, the first alarm signal may be light flashing, the second alarm signal may be vibration, the third alarm signal may be buzzer sound, and the fourth alarm signal may be light and sound at the same time, which is not limited herein.

Example four

Fig. 4 is a schematic structural view of a safety helmet according to a fourth embodiment of the present invention.

The embodiment of the utility model provides a fourth safety helmet that provides includes: a hat shell 10, a hat hoop 20, ear muffs and a neck cover; the top of the cap housing 10 is provided with a first air hole 40, and a first hole cover (not shown) is provided on the first air hole 40 to open or close the first air hole 40; the bottom edge of the cap housing 10 is provided with a second air hole 50, and a second hole cover (not shown) is provided on the second air hole 50 to open or close the second air hole 50; the band 20 is fixed in the cap shell 10, and the ear muffs and the neck muffs are detachably mounted between the cap shell 10 and the band 20. Wherein, both sides of the first air hole 40 are provided with first sliding grooves (not shown in the figure), the first hole cover is provided with a first sliding rail matched with the first sliding grooves, and the first hole cover slides along the first sliding grooves to open or close the first air hole 40. And the second air holes 50 are plural, and the plural second air holes 50 are circumferentially arranged along the bottom edge of the cap housing 10. Both sides of the second air hole 50 are provided with second sliding grooves (not shown), and the second hole cover is provided with second sliding rails engaged with the second sliding grooves, and slides along the second sliding grooves to open or close the second air hole 50. The earmuffs and the neck cover are both mounted between the shell 10 and the band 20 by snap fasteners. The safety helmet provided by the embodiment further comprises a controller 70, a dust concentration sensor 60 and an alarm 80; the dust concentration sensor 60 is provided on the outer surface of the cap case 10 for detecting the dust concentration; the controller 70 is electrically connected with the dust concentration sensor 60 and the alarm 80 respectively; the controller 70 is configured to control the alarm 80 to generate a first alarm signal when the dust concentration sensor 60 detects that the dust concentration exceeds a preset dust concentration threshold. Wherein, the alarm 80 is one or more of a light alarm, a vibration alarm and a sound alarm.

The safety helmet provided by the embodiment further comprises a gas detection device 90, wherein the gas detection device 90 is arranged on the outer surface of the helmet shell 10 and is used for detecting harmful gas; the gas detection device 90 is electrically connected with the controller 70 and the alarm 80 respectively; the controller 70 is also used for controlling the alarm 80 to generate a second alarm signal when the concentration of the harmful gas exceeds the preset value of the concentration of the harmful gas.

Specifically, the gas detection device 90 is disposed on the outer surface of the cap shell 10, so as to increase the contact area with the air, and facilitate the gas detection device 90 to detect the gas concentration in time. Gas detection device 90 can be for the device that can be used for detecting gas concentration common among the prior art, and the harmful gas that its detected can set up according to safety helmet service environment, for example under the easy use condition who produces flammable explosive gas such as coal mining, gas detection device 90 can be arranged in detecting the air flammable explosive gas, like the concentration of combustible gas such as natural gas or carbon monoxide. For another example, the working environment of the worker is a chemical environment in which toxic and harmful gases such as hydrogen sulfide are easily generated, and the gas detection device 90 may be used to detect toxic and harmful gases such as hydrogen sulfide. For another example, when the working environment is a long-term closed environment, and because a large amount of carbon dioxide gas may exist in the working environment, which may cause oxygen deficiency, and when the working environment is a long-term closed environment, suffocation is easily caused in such an environment, the gas detection device 90 may also be used to detect the concentration of carbon dioxide in the air.

It can be understood that the preset value can be a concentration ratio of the gas, in which the concentration in the air such as natural gas, carbon dioxide and the like is harmful to human bodies only when exceeding a certain ratio, and the gas which is not harmful to working personnel when the ratio does not reach the preset value. And for toxic gases such as hydrogen sulfide and the like, even a small amount of gas can also cause harm to workers, the preset value can be 0, namely, the alarm is prompted as long as the gas exists.

EXAMPLE five

Fig. 5 is a schematic structural view of a safety helmet according to a fifth embodiment of the present invention.

The embodiment of the utility model provides a safety helmet that five provide includes: a hat shell 10, a hat hoop 20, ear muffs and a neck cover; the top of the cap housing 10 is provided with a first air hole 40, and a first hole cover (not shown) is provided on the first air hole 40 to open or close the first air hole 40; the bottom edge of the cap housing 10 is provided with a second air hole 50, and a second hole cover (not shown) is provided on the second air hole 50 to open or close the second air hole 50; the band 20 is fixed in the cap shell 10, and the ear muffs and the neck muffs are detachably mounted between the cap shell 10 and the band 20. Wherein, both sides of the first air hole 40 are provided with first sliding grooves (not shown in the figure), the first hole cover is provided with a first sliding rail matched with the first sliding grooves, and the first hole cover slides along the first sliding grooves to open or close the first air hole 40. And the second air holes 50 are plural, and the plural second air holes 50 are circumferentially arranged along the bottom edge of the cap housing 10. Both sides of the second air hole 50 are provided with second sliding grooves (not shown), and the second hole cover is provided with second sliding rails engaged with the second sliding grooves, and slides along the second sliding grooves to open or close the second air hole 50. The earmuffs and the neck cover are both mounted between the shell 10 and the band 20 by snap fasteners. The safety helmet provided by the embodiment further comprises a controller 70, a dust concentration sensor 60 and an alarm 80; the dust concentration sensor 60 is provided on the outer surface of the cap case 10 for detecting the dust concentration; the controller 70 is electrically connected with the dust concentration sensor 60 and the alarm 80 respectively; the controller 70 is configured to control the alarm 80 to generate a first alarm signal when the dust concentration sensor 60 detects that the dust concentration exceeds a preset dust concentration threshold. Wherein, the alarm 80 is one or more of a light alarm, a vibration alarm and a sound alarm.

The safety helmet provided by the embodiment further comprises a power detection device 100, wherein the power detection device 100 is fixed on the helmet shell 10 and used for detecting whether an electric field exists around the helmet shell 10; the power detection device 100 is electrically connected with the controller 70 and the alarm 80 respectively; the controller 70 is also used to control the alarm 80 to generate a third alarm signal when the power detection device 100 detects the presence of an electric field around the cap housing 10.

Specifically, power detection device 100 can include first metal polar plate and the second metal polar plate of insulating connection, first metal polar plate and second metal polar plate insulating connection, thereby constitute dull and stereotyped capacitor structure, before the use, can be connected first metal polar plate and second metal polar plate with the power earlier, thereby charge it, after the completion of charging, can keep breaking off between first metal polar plate and the second metal polar plate, when appearing the electric field around cap shell 10, the electric field can make electric charge take place the motion between first metal polar plate and the second metal polar plate, thereby change the voltage between first metal polar plate and the second metal polar plate, and then can detect voltage change, controller 70 perception voltage sound production back, control alarm 80 produces the third alarm signal. Of course, the power detection device 100 may have other structures, which is not limited by the embodiment of the present invention.

This embodiment safety helmet is through setting up electric power detection device for when the staff is close to the cable, electric field around electric power detection device can detect the cable, makes the alarm produce third alarm signal, and the suggestion person of wearing notices, avoids taking place accidents such as electric shock.

Fig. 6 is a schematic structural view of a safety helmet according to an embodiment of the present invention.

Referring to fig. 6, a safety helmet according to an embodiment of the present invention includes: a hat shell 10, a hat hoop 20, ear muffs and a neck cover; the top of the cap housing 10 is provided with a first air hole 40, and a first hole cover (not shown) is provided on the first air hole 40 to open or close the first air hole 40; the bottom edge of the cap housing 10 is provided with a second air hole 50, and a second hole cover (not shown) is provided on the second air hole 50 to open or close the second air hole 50; the band 20 is fixed in the cap shell 10, and the ear muffs and the neck muffs are detachably mounted between the cap shell 10 and the band 20. Wherein, both sides of the first air hole 40 are provided with first sliding grooves (not shown in the figure), the first hole cover is provided with a first sliding rail matched with the first sliding grooves, and the first hole cover slides along the first sliding grooves to open or close the first air hole 40. And the second air holes 50 are plural, and the plural second air holes 50 are circumferentially arranged along the bottom edge of the cap housing 10. Both sides of the second air hole 50 are provided with second sliding grooves (not shown), and the second hole cover is provided with second sliding rails engaged with the second sliding grooves, and slides along the second sliding grooves to open or close the second air hole 50. The earmuffs and the neck cover are both mounted between the shell 10 and the band 20 by snap fasteners.

The safety helmet provided by the embodiment further comprises a positioning device 110, and the positioning device 110 is fixed in the helmet shell 10 to position the position of the wearer, so that the safety of the wearer is improved. The positioning device 110 may be a Global Positioning System (GPS), a beidou satellite navigation System, or the like.

The helmet provided by the embodiment further comprises a terminal 120, wherein the terminal 120 is in communication connection with the positioning device 110, and the position of the wearer is known through the terminal 120. The terminal 120 may be a mobile phone, a computer, a tablet computer, etc., and the embodiment of the present invention does not limit this.

In the description of the present invention, it is to be understood that the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description above, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (10)

1. A safety helmet, comprising: a hat shell, a hat hoop, earmuffs and a neck sleeve;

the top of the cap shell is provided with a first air hole, and a first hole cover is arranged on the first air hole so as to open or close the first air hole;

a second air hole is formed in the edge of the bottom of the cap shell, and a second hole cover is arranged on the second air hole to open or close the second air hole;

the hat hoop is fixed in the hat shell, and the ear muffs and the neck cover are detachably mounted between the hat shell and the hat hoop.

2. The headgear of claim 1, wherein the second air vent is a plurality of second air vents, the plurality of second air vents being circumferentially disposed along a bottom edge of the shell.

3. The safety helmet according to claim 1, wherein the first air hole is provided with first sliding grooves on both sides thereof, the first hole cover is provided with a first sliding rail engaged with the first sliding grooves, and the first hole cover slides along the first sliding grooves to open or close the first air hole.

4. The safety helmet according to claim 1, wherein the second air hole is provided at both sides thereof with second sliding grooves, the second hole cover is provided with second sliding rails engaged with the second sliding grooves, and the second hole cover slides along the second sliding grooves to open or close the second air hole.

5. The headgear of claim 1 wherein the ear cup and neck cup are each snap-fit between the shell and the band.

6. A safety helmet according to any of claims 1-5, further comprising a controller, a dust concentration sensor, and an alarm;

the dust concentration sensor is arranged on the outer surface of the cap shell and used for detecting the dust concentration;

the controller respectively with dust concentration sensor with the alarm electricity is connected, the controller is used for, when dust concentration sensor detects dust concentration and surpasss and predetermine dust concentration threshold value, control the alarm produces first alarm signal.

7. A safety helmet according to claim 6, wherein the alarm is one or more of a light alarm, a vibration alarm and an audible alarm.

8. The safety helmet of claim 7, further comprising a gas detection means provided at an outer surface of the helmet shell for detecting harmful gas;

the gas detection device is electrically connected with the controller and the alarm respectively;

the controller is further used for controlling the alarm to generate a second alarm signal when the concentration of the harmful gas exceeds a preset value of the concentration of the harmful gas.

9. The safety helmet of claim 7, further comprising a power detection device secured to the helmet shell for detecting the presence of an electric field around the helmet shell;

the electric power detection device is electrically connected with the controller and the alarm respectively;

the controller is further used for controlling the alarm to generate a third alarm signal when the electric power detection device detects that an electric field exists around the cap shell.

10. A safety helmet according to any of claims 1 to 5, further comprising locating means, said locating means being secured within said helmet shell.

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