CN210809458U

CN210809458U - Safety helmet

Info

Publication number: CN210809458U
Application number: CN201921265010.2U
Authority: CN
Inventors: 周晓龙; 张洋
Original assignee: HBIS Co Ltd Chengde Branch
Current assignee: HBIS Co Ltd Chengde Branch
Priority date: 2019-08-06
Filing date: 2019-08-06
Publication date: 2020-06-23
Anticipated expiration: 2029-08-06

Abstract

The utility model provides a safety helmet, belonging to the technical field of protective articles, which comprises a helmet body, a storage box, a gas generating device and a trigger switch; an air bag is arranged inside the cap body; the storage box is fixedly arranged on the cap body, the storage box is used for storing the air curtain and is connected with the air bag through a communicating pipe, and a rupture disk is hermetically arranged in the communicating pipe; the gas generating device is communicated with the storage box and is used for filling gas into the storage box; the trigger switch is arranged at the rupture disk, faces one side of the storage box and is connected with the gas generating device; the gas curtain is popped out by the containing box through gas generated by the gas generating device. The utility model provides a safety helmet, the gas curtain pops out rapidly, can protect the person's of wearing neck safety.

Description

Safety helmet

Technical Field

The utility model belongs to the technical field of protective articles, more specifically say, relate to safety helmet.

Background

The safety helmet is an important protective article for protecting the head of a worker, has certain impact resistance, and is insufficient in protection of the neck of the worker. Under some crisis conditions, the existing air curtain safety helmet has a slow response when being subjected to external impact, and the air curtain cannot be ejected in a short time, so that the safety of the neck of a wearer cannot be effectively protected in time.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a safety helmet aims at solving the unable problem that pops out rapidly of gas curtain.

In order to achieve the above object, the utility model adopts the following technical scheme: providing a safety helmet comprising:

the cap body is internally provided with an air bag;

the storage box is fixedly arranged on the cap body, an air curtain is stored in the storage box and is connected with the air bag through a communicating pipe, and a rupture disk is hermetically arranged in the communicating pipe;

the gas generating device is communicated with the storage box and is used for filling gas into the storage box; and

the trigger switch is arranged at the rupture disk, faces one side of the storage box and is connected with the gas generating device;

the storage box ejects the air curtain by means of the gas generated by the gas generating device.

Furthermore, the cap body is also provided with an inflation inlet for inflating the airbag.

Further, the bottom surface of receiver is seted up and is popped up the air vent of air curtain.

Further, the air curtain is made of a flexible material.

Further, the air curtain is piled up and is placed on the inner wall of receiver.

Further, the edge of the air curtain is surrounded on the edge of the vent hole.

Further, the rupture disk is arranged perpendicular to the axis of the communication pipe.

Further, the gas generating apparatus includes;

the accommodating bin is communicated with the accommodating box;

the filter body is fixedly arranged inside the accommodating bin;

sodium azide filled in a cavity surrounded by the filter body; and

and the igniter is arranged inside the sodium azide and is electrically connected with the trigger switch.

Further, the storage box is inflated by the storage bin through a communication port with the storage box.

Further, the trigger switch includes:

the first bare conductor is fixedly arranged along the radial direction of the rupture disk, and one end of the first bare conductor is fixed while the other end of the first bare conductor is connected with a power supply; and

the second bare conductor is arranged at intervals in a staggered manner with the first bare conductor, and one end of the second bare conductor is fixed while the other end of the second bare conductor is connected with the igniter;

the igniter is electrically connected to the power supply, and the first bare conductor abuts against the second bare conductor by the impact of the rupture disk to form a passage for triggering the igniter.

The utility model provides a safety helmet's beneficial effect lies in: compared with the prior art, the utility model discloses the inside of the cap body of safety helmet is provided with the gasbag, and when receiving external shock, the person's of wearing head extrusion gasbag. The receiver is fixed to be set up on the cap body, breaks the rupture disk after gaseous reaching certain pressure in the gasbag to triggered the trigger switch who sets up at rupture disk towards receiver one side, trigger switch triggers gas generating device and produces a large amount of gases, and gaseous gas curtain is popped out behind the entering receiver, thereby protection person of wearing's that can be fine neck safety. The safety helmet is rapid in response, and can pop up the air curtain in a short time when external impact is received, so that the safety of the head and the neck of a wearer can be protected in time.

Drawings

Fig. 1 is a schematic structural view of a safety helmet provided in embodiment 1 of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

fig. 3 is a schematic structural view of a safety helmet provided in embodiment 2 of the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 1 at B;

fig. 5 is a top view of a safety helmet provided in an embodiment of the present invention.

In the figure: 1. a cap body; 2. an air bag; 3. a gas generating device; 301. an accommodating bin; 302. a filter body; 304. sodium azide; 4. a storage box; 401. an air curtain shell; 402. an air curtain; 5. an inflation inlet; 6. a rupture disk; 7. a trigger switch; 701. a first bare conductor; 702. a second bare conductor; 8. a hat band; 9. a communication pipe is provided.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1-5, the safety helmet of the present invention will now be described. Safety helmet, comprising: cap body 1, receiver 4, gas generator 3 and trigger switch 7. The inner part of the cap body 1 is provided with an air bag 2; the storage box 4 is fixedly arranged on the cap body 1, the storage box 4 is stored with an air curtain 402 and is connected with the air bag 2 through a communication pipe 9, and a rupture disk 6 is hermetically arranged in the communication pipe 9; the gas generator 3 communicates with the storage case 4 and is configured to inflate the storage case 4 with gas. The trigger switch 7 is arranged at the rupture disk 6 and faces one side of the storage box 4, and is electrically connected with the gas generating device 3; the storage box 4 ejects the gas curtain 402 by the gas generated by the gas generating device 3.

The utility model provides a safety helmet's beneficial effect lies in: compared with the prior art, the utility model discloses safety helmet's 1 inside gasbags 2 that are provided with of the cap body, when receiving external shock, the person's of wearing head extrusion gasbag 2. Receiver 4 is fixed to be set up on the cap body 1, breaks rupture disk 6 after 2 internal gases of gasbag reach certain pressure to triggered and set up at rupture disk 6 towards trigger switch 7 of receiver 4 one side, trigger switch 7 triggers gas generating device 3 and produces a large amount of gases, and gas gets into 4 back gas curtains 402 of receiver and is popped out, thereby protection person's that can be fine neck safety. The safety helmet is quick in response, and can pop up the air curtain 402 in a short time when external impact is received, so that the safety of the head and neck of a wearer can be protected in time.

In the utility model, referring to fig. 1, the inner surface of the cap body 1 is connected with a cap belt 8. The hat band 8 is used for fastening the safety helmet on the head of a wearer, and when the safety helmet needs to be worn, the hat band 8 is fastened through the chin, the ears and other parts of the wearer, so that the safety helmet can be attached to the head of the wearer, and a good protection effect is achieved.

As a specific embodiment of the safety helmet provided by the present invention, please refer to fig. 5, the cap body 1 is further provided with an inflation inlet 5 for inflating the airbag 2. To ensure the effectiveness of the rupture disk 6 in operation. When the safety helmet is used, the gas in the air bag 2 can be exhausted through the inflation inlet 5 on the connecting pipe, when the safety helmet is needed to be worn, the amount of the gas to be flushed can be determined according to the danger degree of field construction, and for some projects with high danger, more gas can be filled, so that the safety helmet can react to external impact more sensitively.

As a specific embodiment of the safety helmet provided by the present invention, please refer to fig. 1, the bottom surface of the storage box 4 is provided with an air vent for ejecting the air curtain 402, and the neck is located below the head, so that the bottom of the storage box 4 is provided with an air vent. The curtain 402 can pop up downward when the helmet is subjected to an external impact, thereby ensuring the safety of the wearer's neck.

Referring to fig. 1, an air curtain 402 is a flexible material member as a specific embodiment of the safety helmet provided by the present invention. Since the inflatable curtain 402 is in a retracted state when not worn, the inflatable curtain 402 itself should be a flexible piece of material and have a certain strength to provide adequate protection.

As a specific embodiment of the safety helmet provided by the present invention, please refer to fig. 1, the air curtain 402 is stacked on the inner wall of the storage box 4. After triggering gas generating device 3, produce a large amount of gas in an instant, because be provided with the air vent on the receiver 4 to because gas curtain 402, rupture disk 6 and receiver 4 enclose and establish into airtight space, make the gas of production spill over by the air vent, thereby promote gas curtain 402 and pop out from leading to the groove, guaranteed the realization of function.

As a specific implementation manner of the safety helmet, please refer to fig. 1, the edge of the gas curtain 402 is enclosed on the air vent edge, the gas curtain 402 can be fixed on the outer wall of the storage box 4 and can also be arranged on the inner wall of the storage box 4, when the gas generating device 3 is triggered, the generated gas can only overflow from the air vent, thereby popping up the gas curtain 402 and protecting the safety of the neck.

As a specific embodiment of the safety helmet provided by the present invention, please refer to fig. 3, the axis of the communication tube 9 is perpendicular to the rupture disk 6, so as to ensure that the rupture disk 6 can better sense the air pressure in the airbag 2. When rupture disk 6 sets up with the axis of communicating pipe 9 is perpendicular, the impact force of growing when 2 atmospheric pressure of gasbag increase can the homogeneous action on rupture disk 6, and rupture disk 6 of perpendicular setting more can break, thereby more sensitivity, because rupture disk 6 of own has certain intensity, the head can not initiate the rupture of rupture disk to the extrusion of gasbag 2 when wearing at ordinary times, air curtain 402 is together piled up this moment, when the safety helmet receives the heavy object striking, because the extrusion makes the atmospheric pressure in the gasbag 2 increase to a great value rapidly, because the intensity of rupture disk 6 itself is limited, thereby can't bear the atmospheric pressure in the gasbag 2, thereby rupture disk breaks and initiates the action of epilogue, rupture disk can be comparatively rapid when the accident reacts.

As a specific embodiment of the safety helmet provided by the present invention, please refer to fig. 1 and 3, the gas generating device 3 includes; a holding bin 301, a filter body 302, sodium azide and an igniter. The accommodating bin 301 is communicated with the accommodating box 4; the filter body 302 is fixedly arranged inside the accommodating bin 301; the sodium azide is filled in the cavity surrounded by the filter body 302. The igniter is disposed inside the sodium azide 304 and electrically connected to the trigger switch 7. Hold storehouse 301 and receiver 4 intercommunication, hold storehouse 301 and can set up in the top of receiver 4, the bottom is provided with the intercommunication mouth, fixedly on the inner wall that holds storehouse 301 is provided with filter 302, and filter 302 parcel has sodium azide 304 to be provided with the point firearm in the inside of sodium azide 304. When the igniter is triggered, the sodium azide 304 is promoted to react to release a large amount of gas, the gas is filtered by the filter body 302 and is discharged into the storage box 4 through the communication port, and the gas curtain 402 is pushed to pop out from the through groove due to the sudden increase of the pressure in the storage box 4. The composition reacts rapidly, can produce a large amount of gas in a very short time, and ensures the safety of the neck of the wearer.

As a specific embodiment of the safety helmet provided by the present invention, please refer to fig. 3, the storage box 4 is inflated by the storage box 301 via the communication port with the storage box 4, the storage box 301 can be spherical or cylindrical, the bottom is communicated with the top of the storage box 4, and the generated gas can directly enter the storage box 4, thereby ensuring the reliability of the device.

As a specific embodiment of the safety helmet provided in the present invention, please refer to fig. 4, the trigger switch 7 includes: a first bare wire 701 and a second bare wire 702. The first bare conductor 701 is fixedly arranged along the radial direction of the rupture disk 6, and one end of the first bare conductor is fixed while the other end of the first bare conductor is connected with a power supply; the second bare wires 702 and the first bare wires 701 are arranged in a staggered and spaced mode, and one end of each second bare wire is fixed while the other end of each second bare wire is connected with an igniter; the igniter is electrically connected to a power source, and the first bare wire 701 is brought into contact with the second bare wire 702 by the impact of the rupture disk 6 to form a path for triggering the igniter. One end of the first bare conductor 701 can be fixed on the inner wall of the connecting pipe or fixed by penetrating the connecting pipe, the other end of the first bare conductor 701 is connected with one pole of the power supply, the second bare conductor 702 and the first bare conductor 701 are positioned at different positions and are arranged in a staggered mode, a certain gap exists between the second bare conductor 702 and the first bare conductor, and one end of the second bare conductor 702 is fixed, and the other end of the second bare conductor 702 is connected with the other. When the rupture disk 6 is ruptured, the fragments of the rupture disk 6 drive the first bare conductor 701 and the second bare conductor 702 to be connected by the impact force. Since the power supply is electrically connected to the igniter, at the moment when the first bare wire 701 and the second bare wire 702 are in contact, the path of the igniter is switched on, so that the igniter is triggered, and the igniter triggers the sodium azide 304 to react, so that the air curtain 402 is ejected. The structure is reliable in connection, and when the structure is not impacted by the outside, the power supply is in an open circuit state, energy is not lost, and therefore the service life is guaranteed.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. Safety helmet, its characterized in that includes:

a cap body, inside which an air bag is arranged;

2. The safety helmet of claim 1 wherein the helmet body further comprises an inflation port for inflating the airbag.

3. The safety helmet of claim 1, wherein the bottom surface of the receptacle defines a vent for ejecting the curtain of air.

4. The safety helmet of claim 3 wherein the curtain of gas is a flexible piece of material.

5. The safety helmet of claim 4 wherein the air curtain stack is placed on an inner wall of the receiver.

6. The safety helmet of claim 5 wherein the edge of the curtain of air surrounds the edge of the vent.

7. The safety helmet of claim 1, wherein the rupture disk is disposed perpendicular to an axis of the communication tube.

8. The safety helmet of claim 1 wherein said gas generating means comprises;

the accommodating bin is communicated with the accommodating box;

the filter body is fixedly arranged inside the accommodating bin;

sodium azide filled in a cavity surrounded by the filter body; and

9. The safety helmet of claim 8 wherein said containment bin inflates said containment bin via a communication port with said containment bin.

10. The safety helmet of claim 9 wherein said trigger switch comprises: