Safety air bag in fall protection device and fall protection device

Abstract

The utility model discloses a safety air bag in a fall protection device and the fall protection device, the safety air bag is fixedly connected to the protection device, and the safety air bag comprises an air bag and a traction structure; the traction structures are arranged on the two sides of the lower end of the air bag, and the air bag and the traction structures are folded and stored in the protection device. The air bag is composed of a plurality of columnar cavities, and the columnar cavities on the two sides of the air bag extend outwards to form extending cavities. The traction structures are connected to the outer portions of the extending cavities on the two sides of the air bag, and each traction structure comprises a pull rope and a buckle fixedly connected to the pull rope. According to the safety air bag, the matching cost is reduced, the safety air bag can be rapidly inflated and unfolded, the stability is higher after the safety air bag is unfolded, the hip, the hip, the caudal vertebra and the like of the human body can be well protected, and the impact force generated when the human body falls to the ground is absorbed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of safety protection, especially relates to a safety air bag in a fall protection device and a fall protection device. BACKGROUND

[0002] With the aggravation of population aging, accidental falls pose a serious threat to the life and health of the elderly. The most serious consequence of falls is fracture, among which the fragile parts such as hip joint, spine and wrist are prone to fracture, especially hip fracture.

[0003] In order to reduce the serious consequences of falls in the elderly, a variety of fall protection devices have emerged in the prior art, among which the safety air bag type protection device has attracted much attention. The original design of this type of protection device is to quickly start the inflation device when the human body is about to fall to the ground, quickly fill the gas into the safety air bag, and make it expand instantly to form a resilient buffer area, thereby reducing the impact force when the human body collides with the ground. However, the safety air bag in the existing protection device has many problems. Most of the existing safety air bags use a double cylinder inflation design. Although the use of double cylinders can meet the demand for rapid inflation of safety air bags to some extent, it also brings a series of problems such as high cost due to the large amount of gas required by safety air bags. In addition, the existing safety air bag has poor shape stability after inflation and is prone to shrinkage and deviation. The main reason for this phenomenon is that the existing technology lacks effective support and positioning design in structure, which leads to the fact that the safety air bag cannot accurately fit the key parts of the human body during inflation and expansion, especially the hip and tail vertebrae. When the human body falls, the impact force is often concentrated in these parts. The safety air bag in the prior art cannot effectively cover and buffer, so it cannot play its due protection role, reducing the protection effect of the protection device. SUMMARY

[0004] In view of the deficiencies in the prior art, the utility model provides a safety air bag in a fall protection device and a fall protection device. The safety air bag of the utility model can quickly inflate and expand, has stronger stability after expansion, and can well protect the hip, buttocks and tail vertebrae of the human body, and absorb the impact force when the human body falls.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] Firstly, the utility model provides a safety air bag in a fall protection device, which is fixedly connected to the protection device and comprises a gas bag and a traction structure. The traction structure is arranged on both sides of the lower end of the gas bag, and the gas bag and the traction structure are folded and stored in the protection device.

[0007] The gas bag is composed of a plurality of columnar chambers, and the upper ends of the columnar chambers on both sides of the gas bag are expanded outward to form extension chambers; the columnar chambers on both sides of the gas bag are connected with the traction structure, and the traction structure comprises a pull rope and a buckle fixedly connected to the pull rope.

[0008] As a further technical solution, the gas bag is provided with an air inlet at the top, and the air outlet of the inflator is connected with the air inlet of the gas bag.

[0009] As a further technical solution, the air inlet of the gas bag is located at the upper edge of the gas bag and is located at one fifth of the left or right edge of the gas bag.

[0010] As a further technical solution, the pull rope is an elastic pull rope, one end of the pull rope is fixedly connected to the outside of the columnar chambers on both sides of the gas bag, and the other end of the pull rope is fixedly connected to the buckle.

[0011] As a further technical solution, the buckles on the traction devices on both sides of the gas bag can be buckled with each other, so as to form a ring structure around the human body.

[0012] As a further technical solution, a plurality of pressing rings are arranged in the gas bag, and the pressing rings are arranged at the upper ends of the columnar chambers.

[0013] As a further technical solution, the pressing rings form a non-energy absorption area, the pressing rings are not filled with gas, so as to facilitate the inward bending of the gas bag after inflation, and the pressing rings are in an elliptical structure.

[0014] As a further technical solution, the plurality of columnar chambers are vertically and transversely arranged, the bottom of the middle columnar chamber is widened to form a convex chamber for protecting the hips of the human body.

[0015] As a further technical solution, in the plurality of columnar chambers, the columnar chambers other than the middle columnar chamber are arranged outwardly inclined.

[0016] In a second aspect, the utility model provides a fall protection device, it includes: the safety air bag as any one of the first aspect, the safety air bag is fixed in the fall protection device, and the safety air bag is folded and is stored in the fall protection device.

[0017] The one or more technical solutions of the utility model have the following beneficial effects:

[0018] (1) The extension cavities on the left and right sides of the air bag in the utility model can closely adhere to the hip of the human body when being unfolded, and effectively increase the protection area of the hip; and the bottom of the columnar cavity in the middle is widened to form a convex cavity, when the air bag is inflated and unfolded, the inflated convex cavity provides additional buffer space and energy absorption capacity for the hip, especially the coccyx part, so it can be seen that the utility model effectively solves the problem that the existing air bag cannot effectively protect the hip and coccyx part, and improves the protection capacity of the protection device.

[0019] (2) The traction device at the lower end of the air bag is composed of an elastic pull rope and a buckle, which can effectively limit the deviation of the air bag during the unfolding process of the air bag, and ensure that it is always in the correct position and closely adheres to the hip and hip of the human body. Greatly improve the stability and reliability of protection, avoid the problem of protection failure caused by air bag deviation. At the same time, the elastic material of the elastic pull rope avoids the hindering of the air bag unfolding due to excessive pulling force, and ensures that the air bag can work normally.

[0020] (3) The oval pressing ring arranged in the air bag forms a non-energy absorption area, which on the one hand reduces the gas demand of the air bag, so that the power requirement of the inflator is reduced, and the cost is further reduced; on the other hand, these oval pressing rings make the air bag more easily bend inward after being inflated, better adhere to the body curve of the user, improve the adhesion of the air bag to the user, better form a surrounding to the user, and improve the protection capacity.

[0021] (4) The inflator in the utility model adopts one gas cylinder, which is inflated through one air inlet on the air bag, compared with the traditional double-cylinder inflation mode, the utility model has low matching cost. BRIEF DESCRIPTION OF DRAWINGS

[0022] The drawings accompanying the specification constitute part of this utility model and illustrate certain aspects of the utility model. The illustrative embodiments of the utility model and their description serve to explain the utility model without limiting the utility model unduly.

[0023] Figure 1 It is a schematic view of the planar structure of the air bag in the utility model;

[0024] Figure 2 It is a schematic view of the inflation of the air bag in the utility model;

[0025] Figure 3 It is a schematic view of the structure of the air bag in the utility model when being folded;

[0026] Among them: 10, air bag; 11, air inlet; 12, cylindrical chamber; 13, extension chamber; 14, protruding chamber; 15, pressure ring; 20, traction structure; 21, pull rope; 22, buckle; 30, inflation device; 40, fixing point for airbag and protective device. Detailed Implementation

[0027] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0028] Example 1

[0029] like Figure 1 As shown, this utility model provides a safety airbag in a fall protection device. To address the problems existing in current fall protection devices, the safety airbag is fixed to the protection device. In this embodiment, the safety airbag includes: an air bag 10 and a traction device 20, wherein... Figure 1 As shown, traction structures 20 are provided on both sides of the lower end of the airbag 10, and the airbag 10 and traction structures 20 are folded and stored in the protective device. In addition to the airbag 10 and traction structures 20, the airbag also includes an inflation device 30, such as... Figure 1 As shown, an air inlet 11 is provided above the air bag 10, such as... Figure 2 As shown, the air outlet of the inflation device 30 is connected to the air inlet 11 of the air bag 10. Specifically, the inflation device 30 includes a gas cylinder and an inflation tube. One end of the inflation tube is connected to the air outlet of the gas cylinder 10, and the other end is connected to the air inlet 11 of the air bag 10. Figure 2 As shown, the air inlet 11 of the air bag 10 is located at the upper edge of the air bag 10 and at one-fifth of the distance from the left or right edge of the air bag 10, ensuring that the air cylinder 10 is located at the abdomen of the user after the user wears the protective device, and will not affect the user's daily activities.

[0030] In this embodiment, as Figure 1 As shown, the airbag 10 consists of several cylindrical chambers 12, and the upper ends of the cylindrical chambers 12 on both sides of the airbag 10 extend outward to form extended chambers 13. The design of the extended chambers 13 can effectively increase the protection area and cushioning capacity of the airbag for the human hip, and can better adapt to the force characteristics of the user when falling, providing more comprehensive and reliable protection for the human hip. In this embodiment, as... Figure 1As shown, several columnar chambers 12 are vertically and transversely distributed, the bottom of the middle columnar chamber 12 is widened, and a convex chamber 14 is formed, which effectively enhances the energy absorption of the air bag 10 for protecting the human buttocks. The design of the convex chamber 14 specifically enhances the protection of the air bag on the human buttocks, especially the lumbar spine, effectively reducing the risk of lumbar fracture and injury, and improving the protection performance of the air bag on the key parts of the human body. In this embodiment, in the several columnar chambers 12, the columnar chambers other than the middle columnar chamber are outwardly inclined, which has the advantages that the upper end of the columnar chamber is closer to the air inlet, the gas flows in faster, the inflation time is fast, the air bag can be quickly deployed, and the tail end of the columnar chamber is outwardly inclined, which can use the smallest inflation chamber to achieve the maximum protection area.

[0031] In this embodiment, as shown in Figure 1 , several pressure rings 15 are arranged inside the air bag 10. Specifically, the several pressure rings 15 are arranged at the upper end of the columnar chamber 12. In this embodiment, the several pressure rings 15 form a non-energy-absorbing area, and the pressure ring 15 is not inflated, that is, it will not be inflated and deployed, which is convenient for the air bag 10 to bend inward after inflation, better surround the human body, and the pressure ring 15 is an elliptical structure. Since the pressure ring 15 forms a non-energy-absorbing area, on the one hand, it reduces the gas demand and cost of the air bag 10, and on the other hand, it improves the fit of the air bag with the human body, ensures that the impact force can be effectively absorbed and dispersed by the air bag 10 when falling, and improves the protection performance of the air bag. Figure 1 As shown, the air bag 10 is connected to the traction structure 20 outside the columnar chambers 12 on both sides. The traction structure 20 includes a pull rope 21 and a buckle 22 fixedly connected to the pull rope. Specifically, the pull rope 21 in this embodiment is an elastic pull rope. One end of the pull rope 21 is fixedly connected to the outside (lower end) of the columnar chambers on both sides of the air bag 10. The other end of the pull rope 21 is fixedly connected to the buckle 22. The buckles 22 on the traction devices 20 on both sides of the air bag 10 can be buckled with each other, which is used to form a ring structure around the human body. The design of the traction structure 20 effectively solves the problem that the air bag is easy to deviate after inflation, ensures that the air bag 10 can accurately cover and protect the key parts of the human body such as the buttocks and the hips when it is deployed, improves the stability and reliability of the protection, and enhances the overall protection performance of the air bag.

[0032] Embodiment Two

[0033] In this embodiment, a falling protection device is provided, which includes the air bag of any one of the embodiments one. As shown in Figure 3 , the air bag is fixed in the falling protection device, and the air bag is folded and stored in the falling protection device. In this embodiment, the falling protection device can be a protective waistband or a protective waistcoat in the prior art.

[0034] The above merely describes preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A safety airbag in a fall protection device, the safety airbag being fixedly connected to the protection device, characterized in that It comprises: an air bag and a traction structure; wherein the traction structure is arranged on both sides of the lower end of the air bag, and the air bag and the traction structure are folded and stored in the protective device; the air bag is composed of a plurality of columnar chambers, and the columnar chambers on both sides of the air bag are expanded outward to form extension chambers; the extension chambers on both sides of the air bag are connected with the traction structure outside, and the traction structure comprises a pull rope and a buckle fixedly connected to the pull rope; a plurality of pressing rings are arranged inside the air bag, specifically: a plurality of the pressing rings are arranged at the upper end of the columnar chamber; a plurality of the pressing rings form a non-energy-absorbing area, the pressing rings are not filled with gas, which facilitates the air bag to bend inward after being inflated, and the pressing rings are in an elliptical structure; the plurality of columnar chambers are vertically and transversely distributed, the bottom of the middle columnar chamber is widened to form a convex chamber for protecting the human hip.

2. A safety airbag in a fall protection device as defined in claim 1, characterized in that It also comprises an inflator, the air bag is provided with an air inlet at the upper side, and the air outlet of the inflator is connected with the air inlet of the air bag, specifically: the inflator comprises a gas cylinder and an inflator pipe, one end of the inflator pipe is connected with the air outlet of the gas cylinder, and the other end of the inflator pipe is connected with the air inlet of the air bag.

3. A safety airbag in a fall protection device as defined in claim 2, characterized in that The air inlet of the air bag is located at the upper edge of the air bag, and is located at one fifth of the left or right side edge of the air bag.

4. A safety airbag in a fall protection device as defined in claim 1, wherein, The pull rope is an elastic pull rope, one end of the pull rope is fixedly connected with the outside of the extension chamber, and the other end of the pull rope is fixedly connected with the buckle.

5. A safety airbag in a fall protection device as defined in claim 4, characterized in that The buckles on the traction devices on both sides of the air bag can be buckled with each other, which is used for surrounding the human body in a ring structure.

6. A safety airbag in a fall protection device as defined in claim 1, wherein, In the plurality of columnar chambers, except for the middle columnar chamber, the rest of the columnar chambers are arranged outwardly inclined.

7. A fall protection device, characterized in that It comprises the safety air bag according to any one of claims 1-6, the safety air bag is fixed in the fall protection device, and the safety air bag is folded and stored in the fall protection device.

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