A driving protection device

Abstract

The application provides a driving protection device, which comprises an air bag device and a helmet framework, the air bag device comprises an air bag assembly, a firing device and a compressed gas cylinder, the firing device is internally provided with an inertial sensor, the inertial sensor fires the compressed gas cylinder to connect the air bag assembly when detecting that the acceleration exceeds a threshold value, the air bag assembly comprises an air bag and an elastic pull wire, a receiving box for receiving the air bag is arranged at the rear end of the helmet framework, one end of the elastic pull wire is connected to a fixed anchor point at the rear end of the helmet framework, the other end of the elastic pull wire is wound around a guide wheel and connected to the edge of the air bag from the top of the helmet framework to the rear end of the helmet framework, the air bag is folded in the receiving box when not inflated and the elastic pull wire is pulled tight, after the firing device fires the compressed gas cylinder to connect the air bag, the elastic pull wire pulls the inflated air bag and makes the air bag adhere to the periphery of the helmet framework, the elastic pull wire is used to guide the air bag to pop out and adhere to the head of a user, and the adhesion effect on the head is better.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of driving protection equipment, and particularly relates to a driving protection device. BACKGROUND

[0002] In the application scene of a vehicle, especially a motorcycle and a car, the passengers often bear a great inertial load due to sudden events such as high-speed collision, emergency braking or falling, and high load is easy to cause neck muscle strain and head injury and other problems.

[0003] Most of the cars have airbags as buffers, which can partially protect, while the motorcycles and electric vehicles only have helmets for protection. The existing helmet can only buffer through sponge or other flexible materials, and such a helmet is difficult to fully protect the head. Some existing safety helmet airbags are used as a buffer to protect the head impact, but they have certain defects, for example, the airbag needs to rely on a rigid structure or can only randomly fold and unfold, which makes it difficult for the safety helmet airbag to completely fit the head curve and fully protect the head of the driver. SUMMARY

[0004] In order to solve the problem that it is difficult to fully protect the head of the driver, the present application provides a driving protection device.

[0005] The present application is realized by the following technical scheme:

[0006] The present application provides a driving protection device including an airbag device and a helmet framework, the airbag device includes an airbag assembly, a firing device and a compressed gas cylinder, the firing device is built-in with an inertial sensor, the inertial sensor fires when detecting that the acceleration exceeds a threshold value, the compressed gas cylinder is connected to the airbag assembly, the airbag assembly includes an airbag and an elastic pull wire, the helmet framework rear end is provided with a storage box for storing the airbag, the middle part of the airbag is fixed inside the storage box, the helmet framework front end is provided with a guide wheel, one end of the elastic pull wire is connected to the fixed anchor point at the rear end of the helmet framework, the other end is wound around the guide wheel and connected to the edge of the airbag from the top of the helmet framework to the rear end of the helmet framework, the airbag is folded in the storage box when not inflated, and the elastic pull wire is tightened, after the firing device fires the compressed gas cylinder to connect the airbag, the elastic pull wire pulls the inflated airbag and makes the airbag fit around the helmet framework.

[0007] Further, the airbag includes a first extension part extending from the rear end of the helmet framework to the front end of the helmet framework from both sides and the top, a second extension part extending from the rear end of the helmet framework to the front end of the helmet framework from both sides of the bottom, and a third extension part extending from the rear end of the helmet framework to the bottom.

[0008] Further, each of the first extension parts corresponds to at least one elastic pull wire.

[0009] Further, the front ends of the first extension parts are connected by a rope.

[0010] Further, the compressed gas cylinder is arranged outside the storage box.

[0011] Further, the firing device is arranged in the storage box, and the firing device is used to open the compressed gas cylinder and make the compressed gas cylinder inflate the air bag.

[0012] Further, the air bag device further comprises a connecting clamp arranged at the bottom of the storage box and connecting the compressed gas cylinder and the air bag.

[0013] Further, the air bag is composed of a nylon outer layer and a self-repairing TPU inner layer.

[0014] Further, the helmet skeleton is provided with a guide groove, and the fixed anchor point and the guide wheel are arranged at the front end and the rear end of the guide groove, and each of the guide grooves corresponds to at least one elastic pull wire.

[0015] Further, the reverse curling angle of the air bag is less than or equal to 270°.

[0016] The beneficial effects of the present application are:

[0017] (1) The driving protection device proposed in the present application uses elastic pull wires to guide the air bag to pop out and adhere to the head of the driving personnel after the firing device fires the air bag, the adhesion effect on the head is better, the response speed of the air bag is higher when pulled by the elastic pull wires, and the air bag completely adheres to the head of the driving personnel, which can maximize the protection of the head of the driving personnel.

[0018] (2) The driving protection device proposed in the present application can make the air bag quickly adhere to the head by using elastic pull wires, even if the air bag is not completely inflated, the entire air bag can still adhere to the head to play a certain protective role.

[0019] (3) The driving protection device proposed in the present application uses a connecting clamp to connect the firing device and the compressed gas cylinder, after the firing device fires, the compressed gas in the compressed gas cylinder rapidly inflates the air bag, and the modularization of the compressed gas cylinder and the firing device makes it easier to replace, so that the helmet can be repeatedly used, and the cost is lower. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a structure diagram of the right side of the helmet skeleton of the driving protection device of the present application.

[0021] Figure 2Rear side structure diagram of the driving protection device of the present application;

[0022] Figure 3 Front side structure diagram of the helmet framework of the driving protection device of the present application;

[0023] Figure 4 Sectional view of the driving protection device of the present application when the air bag is closed;

[0024] Figure 5 Sectional view of the driving protection device of the present application when the air bag is opened;

[0025] Figure 6 Air bag structure diagram of the driving protection device of the present application;

[0026] Figure 7 Side view of the driving protection device of the present application in use;

[0027] Figure 8 Front view of the driving protection device of the present application in use;

[0028] In the figure: helmet framework 1, storage box 2, compressed gas cylinder 3, connecting clamp 4, firing device 5, air bag 6, elastic pull wire 7, guide groove 8, guide wheel 9, rope 10, fixed anchor point 11, first extension 12, second extension 13, third extension 14;

[0029] The purpose of the present application, functional features and advantages will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0030] In order to more clearly and completely illustrate the technical solutions of the present application, the present application will be further described below with reference to the accompanying drawings.

[0031] Please refer to Figures 1-8 The present application proposes a helmet with a safety protection air bag 6, which comprises an air bag device and a helmet framework 1. The air bag device comprises an air bag assembly, a firing device 5 and a compressed gas cylinder 3. The firing device is built-in with an inertial sensor. When the inertial sensor detects that the acceleration exceeds a threshold value, it fires to connect the compressed gas cylinder 3 to the air bag assembly. The air bag assembly comprises an air bag 6 and an elastic pull wire 7. The rear end of the helmet framework 1 is provided with a storage box 2 for storing the air bag 6. The middle part of the air bag 6 is fixed inside the storage box 2. The front end of the helmet framework 1 is provided with a guide wheel 9. One end of the elastic pull wire 7 is connected to the fixed anchor point 11 at the rear end of the helmet framework 1, and the other end is wound around the guide wheel 9 and connected to the edge of the air bag 6 from the top of the helmet framework 1 to the rear end of the helmet framework 1. When the air bag 6 is not inflated, it is folded in the storage box 2 and the elastic pull wire 7 is pulled tight. After the firing device 5 fires the compressed gas cylinder 3 to connect the air bag 6, the elastic pull wire 7 pulls the inflated air bag 6 and makes the air bag 6 fit around the helmet framework 1.

[0032] In the specific embodiment, the airbag 6 is fixed in the middle of the storage box 2, the edge of the airbag 6 is connected to the elastic pull wire 7, one end of the elastic pull wire 7 is wound around the guide wheel 9 and connected to the fixed anchor point 11 at the rear end, the airbag 6 is initially in an uninflated state, the edge of the airbag 6 is crimped and pulled together with the elastic pull wire 7 to be crimped and folded into the storage box 2, when the acceleration exceeds the set threshold value, the firing device 5 is triggered, the firing device 5 fires the compressed gas cylinder 3, and the airbag 6 inflates, the airbag 6 first pops out of the storage box 2, and the inflated airbag 6 is attached to the four sides of the helmet skeleton 1 under the rebounding tension of the elastic pull wire 7, thereby fully protecting the user's head, the elastic pull wire 7 is used to guide the airbag 6 to pop out and attach to the user's head, the attachment effect on the head is better, and the head of the driver can be protected to the greatest extent. At the same time, the elastic pull wire 7 is used to pull the airbag 6, and the response speed is higher.

[0033] In one embodiment, the elastic pull wire can make the airbag 6 quickly attach to the head, even if the airbag 6 is not fully inflated, the airbag 6 can still attach to the head to play a certain protective role.

[0034] Further, the airbag 6 includes a first extension 12 extending from the rear end of the helmet skeleton 1 to the front end of the helmet skeleton 1 from both sides and the top, a second extension 13 extending from the rear end of the helmet skeleton 1 to the front end of the helmet skeleton 1 from both sides and the bottom, and a third extension 14 extending from the rear end of the helmet skeleton 1 to the bottom.

[0035] In the specific embodiment, the first extension 12 and the second extension 13 are petal-shaped, the size of the first extension 12 is smaller than that of the second extension 13, five first extensions 12 wrap the helmet skeleton 1, i.e., wrap the upper half of the user's head, two second extensions 13 wrap the lower half of the user's head, and the third extension 14 wraps the user's neck. The airbag 6 is optimally designed according to the parietal-temporal bone curvature of the head, so that the user's head can be fully protected.

[0036] Further, each first extension 12 corresponds to at least one elastic pull wire 7.

[0037] In the specific embodiment, the five first extensions 12 almost wrap the entire helmet skeleton 1, and the elastic pull wire 7 pulls the five first extensions 12 to make the first extensions 12 closely attach to the helmet skeleton 1, thereby maximizing the protection of the user's head.

[0038] Further, the front ends of the first extensions 12 are connected together by the string 10.

[0039] In the specific embodiment, the rope 10 connects the front ends of all the first extensions 12, so that the front ends of the first extensions 12 are bent inward to the front side of the helmet framework 1, thereby fitting the helmet framework 1 more closely.

[0040] Further, the compressed gas cylinder 3 is arranged outside the storage box 2.

[0041] In the specific embodiment, the compressed gas cylinder 3 is filled with compressed carbon dioxide gas, and the compressed gas cylinder 3 provides a gas source for the airbag 6, so that the airbag 6 is inflated.

[0042] Further, the firing device 5 is arranged in the storage box 2, and the firing device 5 is used to open the compressed gas cylinder 3 and inflate the airbag 6.

[0043] In the specific embodiment, the upper part and the lower part of the firing device 5 are connected to the airbag 6 and the compressed gas cylinder 3 respectively, the firing device 5 itself has a standard interface, and the interface can be replaced by plugging and unplugging, and the interface itself has a short-circuit design to prevent accidental triggering, which can improve the safety in the uninstalled state.

[0044] In one embodiment, the firing device 5 can also be selected in other kinds, such as connecting to the vehicle through the built-in Bluetooth module to trigger the airbag 6 when the vehicle collides, or setting the firing device 5 as a safety rope trigger to connect the helmet and the vehicle, and when the passenger separates from the vehicle, the short-circuit effect of the safety rope is small, the voltage is applied to the firing device 5 and the compressed gas cylinder 3 inflates the airbag 6.

[0045] Further, the airbag device also includes a connecting clamp 4, which is arranged at the bottom of the storage box 2 and connected to the compressed gas cylinder 3 and the airbag 6.

[0046] In the specific embodiment, the connecting clamp 4 is arranged at the bottom of the storage box 2 on the rear side of the helmet framework 1, the top end of the connecting clamp 4 is connected to the firing device 5, the bottom end is connected to the compressed gas cylinder 3, the firing device 5 is connected to the airbag 6 to inflate the airbag 6, after the firing device 5 is fired, the storage box 2 is opened, the airbag 6 is unfolded along the direction of the elastic pull wire 7, the elastic pull wire 7 is retracted and the airbag 6 is attached to the user's head, after the end, the user rolls the airbag 6 in the opposite direction of the elastic pull wire 7 to exhaust the air, and puts it back into the storage box 2, and replaces the firing device 5 and the compressed gas cylinder 3, so that the helmet can be reused, and the use of modular design can reduce the cost.

[0047] Further, the airbag 6 is composed of a nylon outer layer and a self-repairing TPU inner layer.

[0048] In the specific embodiment, the air bag 6 adopts a double-layer composite material, the outer layer and the inner layer are attached, the outer layer adopts a nylon layer (the tear strength is greater than or equal to 3000 N / cm2), and the inner layer adopts a self-repairing TPU layer (the air tightness leakage rate is less than 0.5 kPa / min).

[0049] Further, the helmet framework 1 is provided with a guide groove 8, the fixed anchor point 11 and the guide wheel 9 are arranged at the front end and the rear end of the guide groove 8, and each guide groove 8 corresponds to at least one elastic pull wire 7.

[0050] In the specific embodiment, the number of the guide groove 8 is the same as that of the elastic pull wire 7, one end of the elastic pull wire 7 is fixed on the fixed anchor point 11 in the guide groove 8, the other end passes through the guide wheel 9 and is connected to the frontmost end of the first extension part 12, the elastic pull wire 7 is always in the elongated state, when the first extension part 12 is curled into the storage box 2, the elastic pull wire 7 is continuously elongated, after the storage box 2 is opened, the elastic force of the elastic pull wire 7 pulls the first extension part 12 to attach to the helmet framework 1.

[0051] Further, the reverse curling angle of the air bag 6 is less than or equal to 270°.

[0052] In the specific embodiment, through the arrangement, the stress concentration of the folded air bag 6 can be avoided.

[0053] Of course, the present application can have other various embodiments, and based on the embodiments, other embodiments obtained by those skilled in the art without any creative labor belong to the scope protected by the present application.

Claims

1. A vehicle safety device, characterized in that, The helmet includes an airbag device and a helmet frame. The airbag device comprises an airbag assembly, a firing device, and a compressed air cylinder. The firing device has a built-in inertial sensor. When the inertial sensor detects that the acceleration exceeds a threshold, the firing device fires the compressed air cylinder to connect to the airbag assembly. The airbag assembly includes an airbag and an elastic cable. The rear end of the helmet frame has a storage box for storing the airbag. The middle part of the airbag is fixed inside the storage box. The front end of the helmet frame has a guide wheel. One end of the elastic cable is connected to a fixed anchor point at the rear end of the helmet frame, and the other end is wrapped around the guide wheel and connects from the top of the helmet frame to the edge of the airbag at the rear end. When the airbag is not inflated, it is folded inside the storage box and the elastic cable is tightened. After the firing device fires the compressed air cylinder to connect to the airbag, the airbag is inflated and fits against the helmet frame under the tension of the elastic cable.

2. The vehicle safety device according to claim 1, characterized in that, The airbag includes a first extension extending from the rear end of the helmet frame from both sides and the top toward the front end of the helmet frame, a second extension extending from the rear end of the helmet frame from the bottom of both sides toward the front end of the helmet frame, and a third extension extending from the rear end of the helmet frame toward the bottom.

3. The vehicle safety device according to claim 2, characterized in that, Each of the first extensions corresponds to at least one elastic cord.

4. The vehicle safety device according to claim 2, characterized in that, The front ends of the first extension are connected together by a rope.

5. The vehicle safety device according to claim 1, characterized in that, The compressed gas cylinder is located on the outside of the storage box.

6. The vehicle safety device according to claim 5, characterized in that, The firing device is located inside the storage box. The firing device is used to open the compressed gas cylinder and inflate the airbag.

7. The vehicle safety device according to claim 6, characterized in that, The airbag device also includes a connecting clamp, which is located at the bottom of the storage box and connects the compressed air cylinder and the airbag.

8. The vehicle safety device according to claim 1, characterized in that, The airbag is composed of a nylon outer layer and a self-healing TPU inner layer.

9. The vehicle safety device according to claim 1, characterized in that, The helmet frame is provided with guide grooves, the fixed anchor points and the guide wheels are provided at the front and rear ends of the guide grooves, and each guide groove corresponds to at least one elastic pull line.

10. The vehicle safety device according to claim 1, characterized in that, The reverse curling angle of the airbag is less than or equal to 270°.

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