A fall protection device

Abstract

This invention relates to a fall protection device, comprising: a vest body worn on the upper body; an airbag mechanism including a rear airbag located behind the body after inflation and deployment, a front airbag located on the chest, and an inflation device connecting the rear and front airbags; a parachute mechanism including a parachute connected to the front of the vest body after deployment, and an opener for controlling the deployment of the parachute; and a control module connected to the inflation device and the opener. In the event of an accidental fall, the control device automatically identifies the fall and controls the opener to rapidly deploy the parachute, simultaneously opening the airbags. Upon landing, the rear airbag strikes first, acting as a buffer between the body and the ground, protecting the body from impact as much as possible. Furthermore, the front airbag prevents secondary injuries caused by tilting upon landing.

Description

Technical Field

[0001] This invention relates to the field of protective equipment for high-altitude operations, and particularly to a fall protection device. Background Technology

[0002] With the development of the times, high-rise buildings are becoming increasingly common, greatly increasing the dangers of working at heights. Workers at heights typically wear protective gear to prevent accidents. Commonly used equipment includes safety belts, safety ropes, helmets, and fall arrestors. These are all preventative measures; however, if equipment malfunctions or other reasons cause a fall, it will result in irreparable injury to the worker. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a fall protection device for high-altitude operations or emergency escape from high-rise fires, in order to address the above-mentioned shortcomings.

[0004] This invention is achieved through the following technical solution:

[0005] A fall protection device comprising:

[0006] The vest itself is worn on the upper body of the human body;

[0007] An airbag mechanism includes a rear airbag located behind the human body after inflation and deployment, a front airbag located in front of the human body, and an inflation device connecting the rear airbag and the front airbag.

[0008] A parachute mechanism, comprising a parachute that, after deployment, is attached to the front of the vest body, and a parachute opener for controlling the deployment of the parachute; and

[0009] A control module is connected to the inflation device and the umbrella opener.

[0010] Furthermore, in the aforementioned fall protection device, the parachute mechanism includes two parachutes and two corresponding parachute openers; the two parachute openers are symmetrically arranged at both ends of the connecting tube, and together with the two corresponding undeployed parachutes, are laterally arranged on the upper rear side of the vest body.

[0011] Furthermore, in the aforementioned fall protection device, the parachute opener includes an outer shell, an inner shell, gunpowder, and an igniter. The outer shell and the inner shell are fastened together to form a cavity, and can be detached from each other under external force. The igniter is disposed within the cavity opposite to the inner shell, and the gunpowder is disposed within the cavity.

[0012] Furthermore, in the aforementioned fall protection device, the opposite ends of the outer shell and the inner shell that are fastened together are located at the ends of the connecting tube, so that the two parachute deployers are symmetrically arranged at both ends of the connecting tube; the parachute is connected to the inner shell through a connecting rope, and when the inner shell detaches from the outer shell and pops out, it drives the parachute to deploy, and the attachment points of the two parachutes are simultaneously or at the midpoint of the line connecting them at the center of gravity of the person.

[0013] Furthermore, in the aforementioned fall protection device, the uninflated rear airbag and the inflation device are disposed on the lower rear side of the vest body.

[0014] Furthermore, in the aforementioned fall protection device, the rear airbag includes an inner skeleton airbag and an outer cloth cover wrapped around the inner skeleton airbag; the inner skeleton airbag includes a plurality of intersecting and interconnected air columns, and the bottom and sides of the outer cloth cover are provided with air holes.

[0015] Furthermore, in the aforementioned fall protection device, the inner frame airbag, after being inflated and deployed, forms a cuboid extending from the human head to the legs. Each vertex of the cuboid is provided with a pull ring, which is used to connect to the corresponding position of the outer fabric cover.

[0016] Furthermore, in the aforementioned fall protection device, the inner frame airbag is provided with a plurality of the aforementioned inflation devices.

[0017] Furthermore, in the aforementioned fall protection device, the air column of the inner skeleton airbag extends to the front of the vest body to form the front airbag.

[0018] Furthermore, the aforementioned fall protection device also includes a safety rope connected to the vest body.

[0019] The advantages and effects of this invention are:

[0020] 1. The fall protection device provided by this invention has a parachute connected to the front of the human body, and a rear airbag behind the body. In the event of an accidental fall, the control device automatically recognizes the fall and controls the parachute deployer to open the parachute quickly, simultaneously deploying the airbag. When the body lands, the rear airbag hits the ground first, acting as a buffer between the body and the ground, protecting the body from impact as much as possible. Furthermore, a front airbag prevents the body from tilting after landing, thus preventing secondary injuries.

[0021] 2. When the fall protection device provided by the present invention is not inflated and deployed, the parachute, rear airbag and front airbag and other components are all integrated on the vest body, which makes it easy to wear on the upper body and avoids affecting the work of high-altitude workers.

[0022] 3. The rear airbag of the fall protection device provided by the present invention has a length of 100cm-120cm, a width of 60cm-90cm, and a height of 60cm-80cm after inflation. It can completely cover the upper body and head area of ​​the human body and extend to the lower body. The internal pressure of the airbag after inflation is greater than 60kPa. Attached Figure Description

[0023] Figure 1 This is a front view of the fall protection device provided by the present invention in its undeployed state.

[0024] Figure 2 A rear view of the fall protection device provided by the present invention in its undeployed state is shown.

[0025] Figure 3 A schematic diagram showing the operational deployment state of the fall protection device provided by the present invention is shown.

[0026] Figure 4 A schematic diagram showing the deployed state of the airbag mechanism of the fall protection device provided by the present invention is shown.

[0027] Figure 5 A schematic diagram showing the deployed state of the inner skeleton airbag of the fall protection device provided by the present invention is shown.

[0028] Figure 6 This diagram illustrates the connection between the parachute opener and the parachute in the fall protection device provided by the present invention.

[0029] Figure 7 A schematic diagram of the parachute deployer of the fall protection device provided by the present invention is shown.

[0030] Explanation of reference numerals in the attached diagram: 10-Parachute; 11-Airbag mechanism; 13-Control module; 14-Vest body; 20-Front airbag; 22-Safety rope; 23-Inflation mechanism; 25-Parachute opener; 251-Inner shell; 252-Outer shell; 253-Gunpowder; 254-Ignition device; 31-Inner skeleton airbag; 32-Outer fabric cover; 33-Rear airbag; 34-Air inlet; 35-Exhaust outlet; 36-Pull ring; 42-Connecting tube; 43-Threading hole; 51-Connecting rope. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of the embodiments of this invention will be described in more detail below with reference to the accompanying drawings. The described embodiments are only some, not all, of the embodiments of this invention. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the invention, and should not be construed as limiting the invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention. The embodiments of this invention will be described in detail below with reference to the accompanying drawings:

[0032] In the description of this invention, it should be understood that, unless otherwise stated, "a plurality of" means two or more; the terms "center," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "joined" should be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0033] Figure 1 , 2This diagram shows the front and rear views of the fall protection device provided by the present invention in its undeployed state. The fall protection device includes a vest body 14, an airbag mechanism 11, a parachute mechanism, and a control module 13. When not inflated and deployed, the airbag mechanism 11, parachute mechanism, and control module 13 are integrated onto the vest body 14, which is worn by the upper body of the worker performing high-altitude work. The airbag mechanism 11 includes a rear airbag 33, a front airbag 20, and an inflation device 23. The rear airbag 33 is used for landing cushioning and protecting the rear of the body, while the front airbag 20 is used to protect the front of the body. The inflation device 23 connects the rear airbag 33 and the front airbag 20 and is used to inflate the airbag mechanism. Multiple inflation devices 23 can be provided, each using a mixing generator or a cold gas generator, and filled with an inert gas. The parachute mechanism includes a parachute 10 and a parachute deployer 25. After deployment, the parachute 10 cushions the worker's landing. The control module 13 connects the inflation device 23 and the parachute opener 25. Upon receiving a fall signal, it sends an inflation signal to the inflation device 23 and an deployment signal to the parachute opener 25. The fall protection device also includes a safety rope 22 connected to the vest body 14 for fall protection.

[0034] like Figure 2 As shown, when not inflated and deployed, the compressed and folded rear airbag 33 and the inflation device 23 are located on the lower rear side of the vest body 14; as Figure 3 As shown, after inflation and deployment, the rear airbag 33 is located behind the human body. Specifically, the inflated and deployed rear airbag 33 extends from the head to the legs. Figure 4 As shown, in one embodiment, the rear airbag 33 includes an inner skeleton airbag 31 and an outer fabric cover 32 that wraps around the inner skeleton airbag 31. Figure 5 As shown, the inner skeleton airbag 31 includes several intersecting and interconnected air columns. Specifically, after inflation and deployment, the inner skeleton airbag 31 is a cuboid extending from the human head to the legs. The cuboid is formed by the interconnected air columns, including long-side air columns, short-side air columns, and supporting air columns. Supporting air columns connect adjacent long-side air columns, making the structure of the inner skeleton airbag 31 more stable. Each vertex of the cuboid is equipped with a pull ring 36, which connects to a corresponding position inside the outer fabric cover 32, allowing the outer fabric cover 32 to deploy easily and quickly with the inner skeleton airbag 31 while maintaining a certain gap, increasing landing cushioning. Air holes are provided on the bottom and sides of the outer fabric cover 32. Specifically, the air holes on the bottom are air inlets 34, and the air holes on the sides are air outlets 35. During descent, surrounding air inflates the outer fabric cover, increasing the cushioning effect. Preferably, but not limited to, the air inlet 34 is a circle with a diameter of 10 cm, and the exhaust port 35 is a circle with a diameter of 5-8 cm. Several inflation devices 23 may also be provided on the inner skeleton airbag 31 to improve the inflation and deployment efficiency of the airbag mechanism.

[0035] The front airbag 20 and the rear airbag 33 are connected and both are inflated via the inflation device 23. After inflation and deployment, the front airbag 20 is located on the chest area of ​​the body. Specifically, as... Figure 5 As shown, the inner skeleton airbag 31 of the rear airbag 33 extends into two arc-shaped air columns, extending from the rear side through the shoulders to the front side to form the front airbag 20. The shape of the front airbag 20 is not limited to... Figure 5 The arc shape shown can also be other shapes or structures that can protect the front of the body. The front airbag 20 is built into the airbag channel area on the front of the vest body, and the size of the airbag channel area is smaller than the size of the chest airbag, so as to ensure that the front airbag has a certain strength.

[0036] like Figure 7 As shown, the umbrella opener includes an outer shell 252, an inner shell 251, gunpowder 253, and an igniter 254. The outer shell 252 and the inner shell 251 are fastened together to form a cavity, and can be detached from each other under external force. The igniter 254 is disposed within the cavity opposite to the inner shell 251, and the gunpowder 253 is disposed within the cavity. Specifically, the outer shell 252 is a cylindrical structure with a cavity and an opening on one side. The igniter 254 is disposed at the bottom of the cavity opposite to the opening, and the cavity is filled with gunpowder 253. The inner shell 251 is fastened to the outer shell 252 through the opening. The parachute 10 is connected to the outer shell 251 via a connecting rope 51. When the parachute opener (igniter) receives the deployment signal, the gunpowder 253 inside the cavity burns, generating pressure that causes the inner shell 251 to detach from the outer shell 252 and rapidly deploy. The connecting rope of the parachute 10, fixed to the inner shell 251, will be thrown out within 100ms, thus achieving rapid parachute deployment. Figure 2 As shown, the parachute mechanism includes two parachutes 10 and two corresponding parachute openers 25. The two openers 25 are symmetrically arranged at both ends of the connecting tube 42, and together with the two undeployed parachutes 10, are laterally positioned on the upper rear side of the vest body 14. The deployed parachutes are connected to the front side of the vest body 14. The attachment points of the two parachutes 10, or the midpoint of the line connecting them, are located at the center of gravity of the human body, approximately at the navel, to adjust the direction of descent during the fall and ensure a rear-side landing. Specifically, as... Figure 6As shown, the opposite end (the gunpowder setting end) of the outer shell 252, which engages with the inner shell 251, is threaded to the end of the connecting pipe 42, so that the two parachute deployers 25 are symmetrically arranged at both ends of the connecting pipe 42. A wire hole is provided in the middle of the connecting pipe to facilitate the connection between the control module 13 and the parachute deployer. When the parachute deployer is working, the two symmetrically arranged parachute deployers can counteract the force along the axis of the connecting pipe, preventing impact on the back of the human body. Furthermore, the arrangement of two sets of parachute deployers connected to two parachutes ensures that during any in-air flip, the deployed parachutes can quickly adjust the human body's posture, tightly grip the navel, and achieve a slow horizontal descent, ensuring the reliability of the fall protection device.

[0037] Before commencing work at heights, workers must don safety vests and secure their safety ropes to a safe location nearby, adding an extra layer of protection. In the event of a safety rope malfunction, the control module inside the vest will detect a fall and immediately send an ignition signal, triggering the parachute deployer and inflation device. The deployer will rapidly open the parachute lines, ensuring the parachute fully deploys within one second (up to a descent height of 10 meters). Simultaneously, the inflation device inflates the rear airbag frame, rapidly expanding it into a cuboid shape using air drawn from the air. Since the parachute's attachment point is located at the navel, the parachute helps adjust the body's posture during descent, allowing for a back-landing, with the rear airbag providing cushioning. Additionally, to prevent secondary injuries from rollover upon landing, the front airbag protects the chest.

[0038] After testing, when the fall height is 20 meters, the fall protection device provided by this invention can reduce the acceleration value of the human head to 75g, the acceleration value of the chest to 50g, and the acceleration value of the pelvis to 40g. All indicators meet the requirements of the standards and specifications, thus achieving the purpose of protecting the user.

[0039] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the scope of the present invention. Any equivalent changes and modifications made within the protection scope of the present invention should be considered to fall within the protection scope of the present invention.

Claims

1. A fall protection device, characterized in that, The device comprises: a waistcoat body (14) worn on the upper body of a human being; an airbag mechanism (11) comprising a rear airbag (33) located behind the human body after inflation and deployment, a front airbag (20) located at the front chest of the human body, and an inflation device (23) connecting the rear airbag (33) and the front airbag (20); a parachute mechanism comprising a parachute (10) connected to the front side of the waistcoat body (14) after deployment, and an opener (25) for controlling the deployment of the parachute (10); and a control module (13) connected to the inflation device (23) and the opener (25); the parachute mechanism comprises two parachutes (10) and two openers (25) corresponding thereto; the two openers (25) are symmetrically arranged at both ends of a connecting pipe (42) and are laterally arranged on the upper rear side of the waistcoat body (14) together with the corresponding two un-deployed parachutes (10); the opener comprises an outer shell (252), an inner shell (251), gunpowder (253), and an igniter (254); the outer shell (252) and the inner shell (251) are oppositely buckled to form a cavity, and can be separated from each other under the action of an external force; the igniter (254) is arranged in the cavity opposite to the inner shell (251), and the gunpowder (253) is arranged in the cavity; the opposite end of the outer shell (252) buckled to the inner shell (251) is arranged at the end of the connecting pipe (42), so that the two openers (25) are symmetrically arranged at both ends of the connecting pipe (42); the parachute (10) is connected to the inner shell (251) by a connecting rope, and when the inner shell (251) is ejected from the outer shell (252), it drives the parachute (10) to deploy; the hanging points of the two parachutes (10) are at the same time or the midpoint of the connecting line is at the center of gravity of the human body.

2. A fall protection device according to claim 1, wherein, The un-inflated and un-deployed rear airbag (33) and the inflation device (23) are arranged on the lower rear side of the waistcoat body (14).

3. A fall protection device according to claim 1, wherein, The rear airbag (33) comprises an inner layer skeleton airbag (31) and an outer layer cloth cover (32) wrapped outside the inner layer skeleton airbag (31); the inner layer skeleton airbag (31) comprises a plurality of air columns arranged in a horizontal and vertical staggered manner and connected to each other, and the bottom surface and the side surface of the outer layer cloth cover (32) are provided with air holes.

4. A fall protection device according to claim 3, wherein, After inflation and deployment of the inner layer skeleton airbag (31), a cuboid extending from the head to the legs of the human body is formed, and a pull ring (36) is arranged at each vertex of the cuboid; the pull ring (36) is used to connect to the corresponding position of the outer layer cloth cover (32).

5. A fall protection device according to claim 3, wherein, A plurality of inflation devices (23) are arranged on the inner layer skeleton airbag (31).

6. A fall protection device according to claim 3, wherein, The air columns of the inner layer skeleton airbag (31) extend to the front of the waistcoat body (14) to form the front airbag (20).

7. A fall protection device according to claim 1, wherein, The device further comprises a safety rope (22) connected to the waistcoat body (14).

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