TWI822110B - Personal protective equipment - Google Patents

Abstract

A personal protective equipment is provided, which includes a main body, at least one airbag and an inflatable module. The main body is configured to be worn on a user. The at least one airbag and the inflation module are arranged on the main body. The inflation module is configured to connect to the at least one airbag for inflating the at least one airbag. The inflation module includes a gas generator body and a quick release joint. One end of the gas generator body is provided with a gas discharge part and a fixed protrusion. The quick-release joint is arranged at one end of the gas generator body, and includes a socket and a fixing ring. The socket and the fixing ring respectively have predetermined fixing structures corresponding to the fixing protrusions, so that the effects of quick disassembly, simple structure and double locking or fixing can be achieved.

Description

personal protective equipment

The present invention relates to a personal protective device, in particular to a personal protective device having an airbag and an inflatable module thereof.

Airbags are standard equipment for vehicles. When a vehicle collides, the gas generator in the airbag can be inflated instantly in a very short time to form a barrier layer with buffering and protective functions to protect the driver and passengers. Safety. However, due to the advantages of automotive gas generators such as extremely fast speed, sufficient gas volume, small size, and good safety, many different industries are gradually using automotive gas generators as the power source of their products, such as personal protection, Fire products and more.

Among them, in order to protect people's lives, inflatable protective clothing has been used in many fields. For example, it can be used as protective clothing, helmets, etc. for motorcycle riders or extreme athletes, allowing motorcycle riders or extreme athletes to stay safe during their activities. When encountering an accident, gas can automatically fill the airbags in the inflatable protective clothing, allowing motorcycle riders or extreme athletes to reduce the degree of injury by utilizing the cushioning force of the airbags in the inflatable protective clothing. As mentioned above, based on the product characteristics of the gas generator, if it is used for personal protection purposes, an adapter is required to connect the gas generator to its bag to ensure that the generator will not be affected by recoil during operation. It is separated from the bag and allows the system to remain airtight to achieve expansion of the bag and maintain the full state of the bag until the end of protection. but Most general connectors use screw threads to connect with the gas generator. However, screw thread locking requires the generator to be rotated several times, and there is a possibility of loosening without final locking. Moreover, the process of replacing the gas generator is time-consuming and after repeated use or over-tightening, the joint may be damaged by the threads. As a result, the gas generator cannot be locked normally, and even when the threads are severely damaged, the gas generator cannot be controlled and the gas generator becomes detached, which not only fails to protect personnel, but may even cause unexpected injuries to personnel.

In summary, the inventor of the present invention thought about and designed a personal protective device in order to improve the shortcomings of the conventional technology and thereby promote industrial implementation and utilization.

The purpose of the present invention is to provide a personal protective device to improve the aforementioned problems.

Based on the above objectives, the present invention provides a personal protective device, which includes a device body, at least one airbag unit and an inflatable module. The device system is configured to be worn or worn by a user. At least one airbag unit is disposed on the device body. The inflatable module is disposed on the device body and connected to the at least one airbag unit; the inflatable module is configured to inflate the at least one airbag unit. The inflatable module includes a gas generator body and a quick-release joint. One end of the gas generator body has a combination part, and the combination part is cylindrical. The combination part has a gas discharge part and a fixed protrusion protruding from the gas generator body in a radial direction. The quick-release joint includes a set of connectors and a fixing ring. The sleeve is configured to be connected to the airbag unit and is rotatably located at the combination part. The sleeve has a first groove and a rotating groove; the first groove is arranged along the axial direction of the sleeve; one end of the first groove is connected to the sleeve It is sleeved on one end of the combination part, and the other end of the first groove is connected to one end of the rotating groove. The rotating groove is arranged along a first rotating direction, and the other end of the rotating groove is a terminal end. The fixed ring is rotatably located on the sleeve, and the fixed ring has a second groove and a rotating sliding surface. One end of the second groove is connected to one end of the fixed ring and is sleeved on the sleeve. The other end of the second groove is connected to one end of the rotating sliding surface; the rotating sliding surface is along the opposite direction to the first A second rotation direction of one rotation direction is provided, and the other end of the rotating sliding surface is the terminal end; the rotating sliding surface is provided with a certain convex portion adjacent to the other end of the rotating sliding surface.

Preferably, when the quick release joint and the gas generator body are assembled, the fixing protrusion is located between the terminal end of the rotating groove and the terminal end of the rotating sliding surface, and is located on the rotating sliding surface. between the terminal end and the fixed protrusion.

Preferably, the fixed convex part is arc-shaped, and the fixed convex part has a maximum convex height; the rotating groove has a setback distance from the fixed convex part on one side relative to the rotating sliding surface, and the setback distance Greater than the maximum convex height of the fixed convex part.

Preferably, the combination part has a neck with a tapered diameter; a first elastic ring is provided on the neck; one end of the sleeve has a socket hole for the combination part to extend into; The insertion hole is provided with a stopper at a position corresponding to the first elastic ring, and the gap between the stopper and the neck is smaller than the thickness or diameter of the first elastic ring.

Preferably, the stop portion is provided with an inclined portion relative to the position of the neck portion.

Preferably, the other end of the sleeve has a gas flow opening, and the circular diameter of the gas flow opening is larger than the circular diameter of the combination part.

Preferably, the gas flow port is provided with a buffer groove at a position corresponding to the gas discharge portion, and the buffer groove is recessed inward from the inner surface of the gas flow port.

Preferably, a plurality of second elastic rings are spaced apart from the outer periphery of the sleeve member adjacent to the other end of the sleeve member.

Preferably, the gas generator body further includes a firing unit; the firing unit is triggered to drive the gas generator body to inflate the at least one air bag unit. The personal protective device further includes a driving line; one end of the driving line is connected to the firing unit to trigger the firing unit, and the other end of the driving line is set at a predetermined position.

Preferably, the gas generator body further includes a firing unit; the firing unit is triggered to drive the gas generator body to inflate the at least one air bag unit. The personal protective device further includes a sensing unit and a control unit disposed on the device body; the sensing unit is electrically connected to the control unit and configured to sense the device body to generate a three-axis acceleration signal; the control unit The unit controls the firing unit to act when it determines that a protection condition is met based on the three-axis acceleration signal.

The personal protective device of the present invention can achieve the following improvement effects:

1. The personal protective device of the present invention uses the predetermined groove configuration of the socket and the fixing ring of the inflatable module, and the configuration of the fixing boss of the gas generator body, so that it can achieve the effect of rapid replacement, and It can also be used to achieve a quick deflation effect after use.

2. The personal protective device of the present invention can achieve the effects of simple structure, small volume and light weight through the predetermined structural configuration of the sleeve of the inflatable module and the fixed ring.

3. The personal protective device of the present invention, through the predetermined structural configuration of the sleeve of the inflatable module and the fixing ring, has double locking or fixation to prevent detachment and is not easily damaged.

The technical features of the present invention will be described in detail below with specific embodiments and accompanying drawings, so that those with ordinary skill in the art can easily understand the purpose, technical features, and advantages of the present invention.

1:Personal protective equipment

10:Device body

20:Air bag unit

30:Inflatable module

31:Gas generator body

311:Combined Department

312: Gas discharge part

313: Fixed boss

314:Neck

315: Firing unit

32:Quick release connector

321:Sockets

3211:First trench

3212: Rotating ditch

3213: Setback distance

3214: inserting hole

3215: Stopper

3216: Bevel face

3217: Gas flow port

3218:Buffer groove

3219: Diversion Department

322: Fixed ring

3221:Second trench

3222: Rotating sliding surface

3223: Fixed convex part

33: First elastic ring

34: Second elastic ring

40: Drive line

51: Sensing unit

511: Three-axis acceleration signal

52:Control unit

521: Protection status

H: Maximum raised height

R1: first rotation direction

R2: Second rotation direction

In order to explain the technical solutions of the embodiments of the present invention more clearly, the drawings required for describing the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those with ordinary knowledge in the technical field to which the present invention belongs, other drawings can also be obtained based on these drawings.

Figure 1 is a schematic structural diagram of the personal protective device of the present invention.

Figure 2 is an exploded schematic diagram of the inflatable module of the personal protective device of the present invention.

Figure 3 is a schematic cross-sectional view of the inflatable module of the personal protective device of the present invention.

Figure 4 is a schematic diagram of the completed assembly of the inflatable module of the personal protective device of the present invention.

Figure 5 is a first assembly diagram of the inflatable module of the personal protective device of the present invention.

Figure 6 is a second assembly diagram of the inflatable module of the personal protective device of the present invention.

Figure 7 is a schematic structural diagram of the first embodiment of the personal protective device of the present invention.

Figure 8 is a block diagram of a second embodiment of the personal protective device of the present invention.

The advantages, features and technical methods achieved by the present invention will be described in more detail with reference to the exemplary embodiments and accompanying drawings to be more easily understood. The present invention can be implemented in different forms and should not be understood to be limited to what is described here. Rather, the provided embodiments will make this disclosure more thorough and complete to those of ordinary skill in the art. and fully convey the scope of the invention, and the invention will only be defined by the appended claims.

It will be understood that, although the terms "first," "second," etc. may be used herein to describe various elements, components, regions, sections, layers and/or sections, these elements, components, regions, sections , layers and/or sections shall not be limited by these terms. These terms are only used to distinguish one element, component, region, section, layer and/or section from another element, component, region, section, layer and/or section.

Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meanings as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms such as those defined in commonly used dictionaries should be construed to have definitions consistent with their meanings in the context of the relevant technology and the present invention, and are not to be construed as idealistic or overly formal meaning unless expressly so defined herein.

Please refer to Figure 1, which is a schematic structural diagram of the personal protective device of the present invention. As shown in the figure, the personal protective device 1 of the present invention mainly includes a device body 10, at least one airbag unit 20 and an inflatable module 30.

Among them, the device body 10 can be a protective device for users to wear, such as anti-fall clothing (or trousers, jumpsuits), life jackets, safety helmets, etc. that are well known or customary to those skilled in the art of the present invention. It can also be a protective device that is well known or customary to those with ordinary skill in the technical field to which the present invention belongs, such as a protective device worn on the user's neck, hands or legs.

The airbag unit 20 may be an airbag bag or the like that is well known or customary to those skilled in the technical field of the present invention, and is provided on the device body 10 . For example, when the device body 10 can be an anti-fall jacket or a life jacket, the airbag unit 20 can be a device that can directly correspond to the user. The airbag unit 20 can be two airbag bags corresponding to the user's chest and back; or the airbag unit 20 can be two airbag bags corresponding to the user's chest. , three airbags on the back and neck. For another example, when the device body 10 can be a safety helmet, the airbag unit 20 can be an airbag bag covering the entire outside of the safety helmet; or, the airbag unit 20 can be a top side corresponding to the user's head. , three airbag bags on the rear side and both sides; alternatively, the airbag unit 20 may be four airbag bags corresponding to the top side, back side, both sides and neck of the user's head. Wherein, when the number of airbag units 20 is plural, they can be connected to each other through one or more pipelines, so that when one of the airbags is inflated, the remaining airbags can be inflated at the same time.

In this embodiment, the anti-fall clothing commonly used by motorcycle riders or extreme athletes is used as an example, but the personal protective device 1 of the present invention should not be limited to this.

Among them, the inflatable module 30 is disposed on the device body 10 and connected to the at least one airbag unit 20. Incidentally, the inflatable module 30 can be directly connected to an airbag unit 20, or indirectly through appropriate pipelines. Ground is connected to one airbag unit 20, or can be connected to multiple airbag units 20 simultaneously through appropriate pipelines. The inflatable module 30 is configured to inflate the at least one airbag unit 20 so that the airbag unit 20 is filled with gas, which is beneficial to protecting the user's human body when in contact with the ground and improving safety performance.

Among them, the detailed description of the inflatable module 30 will be further described below.

Please refer to pictures 2 to 6 in conjunction with picture 1. Figure 2 is an exploded schematic diagram of the inflatable module of the personal protective device of the present invention. Figure 3 is a schematic cross-sectional view of the inflatable module of the personal protective device of the present invention. Figure 4 shows the assembly of the inflatable module of the personal protective device of the present invention. Complete the schematic. Figures 5 and 6 are first and second assembly schematic diagrams of the inflatable module of the personal protective device of the present invention.

As shown in the figure, the inflatable module 30 of the personal protective device of the present invention mainly includes a gas generator body 31 and a quick-release joint 32.

Among them, the bottle body material, internal structure and internal contents of the gas generator body 31 can be technical means that are well known or commonly used by those with ordinary knowledge in the technical field to which the present invention belongs, and these parts will not be discussed here. Elaborate. One end of the gas generator body 31 has a combination portion 311 . Wherein, the combination part 311 is preferably cylindrical, and the combination part 311 has a gas discharge part 312 and a fixed protrusion 313 protruding from the surface of the gas generator body 31 in the radial direction. , the fixing protrusion 313 can be a cylinder, an ellipsoid, etc., or the fixing protrusion 313 can have rounded corners, bevels, etc. in a special part (corresponding to the position of the fixing protrusion 3223 described below). Structure columns.

Among them, the quick-release joint 32 includes a set of connecting parts 321 and a fixing ring 322. The sleeve 321 can be made of general steel metal, or it can also be made of aluminum alloy to reduce the overall weight. The sleeve part 321 is rotatably located or arranged on the combination part 311 . The fixing ring 322 is made of general steel metal to ensure wear resistance and better rigidity and strength. The fixing ring 322 is rotatably located on the sleeve 321 .

Furthermore, the sleeve member 321 can be generally in a cylindrical or tubular structure and has a sleeve insertion hole 3214, so that the sleeve member 321 can be located or disposed on the combination portion 311 using the sleeve insertion hole 3214. Among them, the sleeve member 321 has a first groove 3211 and a rotating groove 3212. The first groove 3211 is disposed along the axial direction of the sleeve member 321; one end of the first groove 3211 is connected to one end of the sleeve member 321 and sleeved on the combination part 311. The other end of 3211 is connected to one end of the rotating groove 3212; that is to say, the first groove 3211 is started from the end of the sleeve 321 that is extended or inserted by the combination part 311, and extends and is connected to the rotating groove 3212. The other end of the rotating groove 3212 is the termination end. That is, the first groove 3211 and the rotating groove 3212 may form an L-shaped (or ""-shaped) limiting structure. Thereby, when the sleeve member 321 can be located or arranged on the combination part 311 by using the insertion hole 3214, the fixing protrusion 313 can enter the limiting structure (i.e., the third position) of the sleeve member 321 through the first groove 3211. a groove 3211 and a rotating groove 3212).

Incidentally, a plurality of second elastic rings 34 are spaced apart from the outer periphery of the sleeve member 321 adjacent to the other end of the sleeve member 321 . Thereby, good air tightness is achieved between the inflatable module 30 of the present invention and the assembled or installed airbag unit 20 .

In addition, the fixed ring 322 has a second groove 3221 and a rotating sliding surface 3222 accordingly. One end of the second groove 3221 is connected to the fixed ring 322 and is sleeved on one end of the sleeve 321. The other end of the second groove 3221 is connected to one end of the rotating sliding surface 3222, and the rotating The other end of the sliding surface 3222 is the termination end. That is, the second groove 3221 and the rotating sliding surface 3222 may form an L-shaped (or “﹁”-shaped) limiting structure. Thereby, when the fixing ring 322 is located or disposed on the combination of the sleeve part 321 and the combination part 311, the fixing protrusion 313 can enter into the limiting structure of the fixing ring 322 through the second groove 3221.

It should be particularly noted that the rotating groove 3212 is arranged along a first rotating direction R1, and the rotating sliding surface 3222 is arranged along a second rotating direction R2 opposite to the first rotating direction R1. Furthermore, a fixed protrusion 3223 is provided at the other end of the rotating sliding surface 3222 adjacent to the rotating sliding surface 3222 . That is to say, when the quick-release joint 32 and the gas generator body 31 are assembled, the fixing protrusion 313 is located between the terminal end of the rotating groove 3212 and the rotating groove 3212 . between the terminal end of the rotating sliding surface 3222 and between the terminal end of the rotating sliding surface 3222 and the fixed protrusion 3223. Thereby, when the gas generator body 31 or the quick-release joint 32 is rotated and the fixing protrusion 313 passes over the fixing protrusion 3223, the fixing protrusion 3223 can limit the freedom of reverse displacement of the fixing protrusion 313, thereby enabling the quick release of the gas generator body 31 or the quick release joint 32. The detachable joint 32 can be firmly installed on the gas generator body 31 .

On the other hand, the combination part 311 has a neck portion 314 with a tapered diameter. The neck portion 314 is provided with a first elastic ring 33. Preferably, the first elastic ring 33 can be made of EPDM material. , in order to achieve good temperature shock resistance. The insertion hole 3214 is provided with a stopper 3215 at a position corresponding to the first elastic ring 33 , and the gap between the stopper 3215 and the neck 314 is smaller than the thickness or circumference of the first elastic ring 33 . diameter. Incidentally, the stopper 3215 is provided with an inclined portion 3216 relative to the neck 314 , that is, the inclined portion 3216 is disposed at a position where the stopper 3215 faces the first elastic ring 33 . Through the predetermined structural arrangement of the stopper 3215 and the first elastic ring 33, when the assembly of the quick-release joint 32 and the gas generator body 31 is completed, the stopper 3215 and its inclined portion 3216 and the neck 314 can be The first elastic ring 33 is compressed to deform, thereby filling or blocking the gap between the stopper 3215 and the neck 314, thereby making the inflatable module 30 of the present invention and the assembled or installed airbag unit 20 with good air tightness.

As shown in Figure 6. It is worth mentioning that the fixed protrusion 3223 is arc-shaped or has rounded corners, arcs, slopes and other structures at both ends. Among them, the fixed protrusion 3223 has a maximum protrusion height H, which can be, for example, 0.4 mm to 0.8 mm. The actual value can be adjusted according to the actual application, so this should not be used as a limitation. The side of the rotating groove 3212 relative to the rotating sliding surface 3222 has a setback distance 3213 from the fixed protrusion 3223 , and the setback distance 3213 is greater than the maximum protrusion height H of the fixed protrusion 3223 . And because the first elastic ring 33 has appropriate elastic recovery Therefore, during the period when the fixing protrusion 313 passes over the fixing protrusion 3223, the first elastic ring 33 can also provide the ability to reset the fixing protrusion 313 when the gas generator body 31 is axially displaced. Moreover, the stopper 3215, its inclined portion 3216 and the neck 314 can press the first elastic ring 33 to cause the first elastic ring 33 to deform. The elastic restoring force of the first elastic ring 33 can simultaneously provide the fixing protrusion. 313 is located between the terminal end of the rotating groove 3212 and the terminal end of the rotating sliding surface 3222, and between the terminal end of the rotating sliding surface 3222 and the fixed protruding portion 3223. Effect.

Incidentally, the inclined portion 3216 also facilitates the smooth movement of the sleeve 321 up and down during assembly, thereby allowing the user to easily assemble the sleeve 321 to the assembly portion 311 .

Furthermore, the other end of the sleeve 321 (that is, the end opposite to the insertion end of the combination part 311) has a gas flow port 3217, and the circular diameter of the gas flow port 3217 is larger than the circular diameter of the combination part 311. Wherein, the gas flow port 3217 is provided with an annular buffer groove 3218 at a position corresponding to the gas discharge portion 312, and the buffer groove 3218 is concave inward from the inner surface of the gas flow port 3217; also That is to say, the gas flow port 3217 and the buffer groove 3218 may be formed into a convex-shaped structure generally or in cross section. Preferably, a guide portion 3219 is provided at the junction between the buffer groove 3218 and the inner surface of the gas flow port 3217.

Thereby, the buffer groove 3218 can effectively slow down the impact force when the gas generator discharges gas, and prevents the airbag unit 20 (airbag bag) from rupturing due to excessive impact force when the gas is discharged. It is worth mentioning that in actual application, it can be used to adjust the diameter of the gas flow port 3217 to be larger than the circular diameter of the combination part 311, that is, adjust the sleeve 321 behind the buffer groove 3218 when the gas flows out. The size of the gap with the combination part 311 can adjust the flow rate and flow rate when the gas flows out.

Please refer to Figures 2 and 3 together with Figures 5 and 6. Relevant steps of the assembly method of the inflatable module 30 will be described below.

First, insert the assembly portion 311 of the gas generator body 31 into the quick-release joint 32, that is, rotate the fixing ring 322 to align or overlap the first groove 3211 and the second groove 3221, and then align the fixing protrusions. 313 is aligned with the first groove 3211 and the second groove 3221, and then the combination part 311 is inserted into the sleeve hole 3214. At this time, the fixing protrusion 313 will enter the first groove 3211 and the second groove 3221 together. Then, the user can first fix the rotational freedom of the quick-release joint 32 and rotate the gas generator body 31 along the first rotation direction R1 (or, the user can connect the sleeve 321 with the gas generator body 31 Relative rotation), so that the fixed protruding column 313 reaches the terminal end of the rotating groove 3212.

Next, the rotational freedom of the gas generator body 31 and the sleeve 321 is fixed and the fixing ring 322 is rotated along the first rotation direction R1 (or, the user can rotate the gas generator body 31 and the sleeve 321 321 and the fixing ring 322 rotate relative to each other), so that the fixing protruding column 313 reaches the position of the fixing protrusion 3223. Then, the rotational freedom of the fixing ring 322 is fixed and the gas generator body 31 is rotated along the second rotation direction R2, so that the fixing protrusion 313 passes over the fixing protrusion 3223. Finally, the gas generator body 31 is rotated so that the fixed protrusion 313 reaches the terminal end of the rotating groove 3212 . At this time, the fixed protruding post 313 is located between the terminal end of the rotating groove 3212 and the terminal end of the rotating sliding surface 3222, and between the terminal end of the rotating sliding surface 3222 and the fixed protruding portion 3223.

Thereby, the predetermined structure of the sleeve 321 and the fixing ring 322 can be arranged between the gas generator body 31 and the quick-release joint 32, so that the inflatable module 30 has double locking or fixed protection against detachment, and Not easily damaged. It is worth mentioning that, from the above, it can be seen that the present invention The inflatable module 30 of the personal protective device 1 can provide a quick assembly effect. Of course, it can also provide a quick disassembly effect. Therefore, when the personal protective device 1 of the present invention inflates gas into the airbag unit 20 (airbag) to protect the user after operation, the relevant personnel can quickly disassemble the gas generator body 31, so that the airbag unit 20 (airbag) The gas in the bag can be quickly discharged to the outside to facilitate subsequent inspection or first aid procedures for the user.

Please refer to Figure 7, which is a schematic structural diagram of the first embodiment of the personal protective device of the present invention. As shown in the figure, in this implementation, the main difference from the previous description is that the gas generator body 31 further includes a firing unit 315, and the personal protective device 1 further includes a driving wire 40.

The firing unit 315 may be, for example, an igniter and other components well known to those skilled in the art; the firing unit 315 is triggered to drive the gas generator body 31 to inflate the at least one airbag unit 20 . That is to say, when an unexpected situation occurs, the firing unit 315 will be triggered, thereby prompting the contents inside the gas generator body 31 to act to generate gas (such as suitable temperature and high pressure gas), and fill the air bag through the gas discharge part 312 Unit 20.

Among them, one end of the driving wire 40 is connected to the firing unit 315 to trigger the firing unit 315. The other end of the driving wire 40 is set at a predetermined position, and the predetermined position is such as a specific position on a motorcycle or a specific position on the equipment used by extreme athletes. Location. That is to say, when an unexpected situation occurs, the user will be separated from the motorcycle or the appliance used, so that the driving wire 40 can pull the firing unit 315, thereby triggering the firing unit 315.

Please refer to Figure 8, which is a schematic structural diagram of a second embodiment of the personal protective device of the present invention. As shown in the figure, in this implementation, the main difference from the previous description is that Finally, the gas generator body 31 further includes a firing unit 315, and the personal protective device 1 further includes a sensing unit 51 and a control unit 52 provided on the device body 10.

The firing unit 315 is as described in the previous embodiment, and is triggered to drive the gas generator body 31 to inflate the at least one airbag unit 20 . The sensing unit 51 is electrically connected to the control unit 52 and configured to sense the device body 10 to generate a three-axis acceleration signal 511 . For example, the sensing unit 51 may be a three-axis accelerometer for sensing acceleration in three axes (ie, longitudinal axis, horizontal axis, and vertical axis). The control unit 52 has logical computing capabilities and can be used to perform numerical operations. It can be, for example, a central processing unit (CPU), a microcontroller unit (MCU) or an open source microcontroller. A device (such as Arduino, Raspberry Pi, etc.) that controls the firing unit 315 to act when it determines that a protection condition 521 is met based on the three-axis acceleration signal 511.

For example, when the sensing unit 51 detects a signal, it will be sent to the control unit 52 for judgment. If the detected signals show steady changes within a certain period of time, the control unit 52 will judge it to be a non-protective condition; if the signal When drastic changes occur within a certain period of time, the control unit 52 will determine the protection status 521. For another example, when the sensing unit 51 detects that the signal exceeds the default value set by the control unit 52, it will determine the protection status 521.

It is worth mentioning that the above embodiments can be combined and applied without conflict with each other. Therefore, the examples should not be limited only to the exemplary aspects in the embodiments.

The above is only illustrative and not restrictive. Any equivalent modifications or changes that do not depart from the spirit and scope of the invention shall be included in the scope of the appended patent application.

1:Personal protective equipment

10:Device body

20:Air bag unit

30:Inflatable module

Claims (10)

A personal protective device, which includes: a device body configured for a user to wear or wear; at least one airbag unit disposed on the device body; and an inflatable module disposed on the device body and connected to the at least An airbag unit, the inflatable module is configured to inflate the at least one airbag unit, the inflatable module includes a gas generator body and a quick release joint, one end of the gas generator body has a combination part, the combination The assembly part is cylindrical, and the assembly part has a gas discharge part and a fixed boss protruding from the gas generator body in the radial direction; the quick-release joint includes a set of connectors and a fixed ring. The connector is configured to be connected to the at least one airbag unit and is rotatably located at the combination part. The sleeve member has a first groove and a rotation groove, and the first groove is along the sleeve member. is arranged in the axial direction, one end of the first groove is connected to one end of the sleeve set on the combination part, the other end of the first groove is connected to one end of the rotating groove, the rotating groove is along a first The rotation direction is set, and the other end of the rotating groove is the terminal end. The fixed ring is rotatably located on the sleeve. The fixed ring has a second groove and a rotating sliding surface. The second groove One end of the groove is connected to the fixed ring and is sleeved on one end of the sleeve. The other end of the second groove is connected to one end of the rotating sliding surface. The rotating sliding surface is in a direction opposite to the first rotation direction. A second rotation direction is provided, and the other end of the rotating sliding surface is the terminal end. The rotating sliding surface is adjacent to the other end of the rotating sliding surface and is provided with a fixed convex portion provided with a bulge. The personal protective device of claim 1, wherein when the quick-release joint and the gas generator body are assembled, the fixing protrusion is located between the terminal end of the rotating groove and the terminal end of the rotating sliding surface. , and is located between the terminal end of the rotating sliding surface and the fixed convex portion. The personal protective device as claimed in claim 1, wherein the fixed protrusion is arc-shaped, and the fixed protrusion has a maximum protrusion height, and the side of the rotating groove relative to the rotating sliding surface is in contact with the fixed protrusion. The part has a setback distance, which is greater than the maximum convex height of the fixed convex part. Spend. The personal protective device as claimed in claim 1, wherein the combination part has a neck tapering from a circular diameter, a first elastic ring is provided on the neck, and one end of the sleeve has a hole for the combination part A set of insertion holes is inserted, and a stopper is provided in the insertion hole corresponding to the position of the first elastic ring, and the gap between the stopper and the neck is smaller than the thickness or circle of the first elastic ring. diameter. The personal protective device as claimed in claim 4, wherein the stop portion is provided with an inclined portion relative to the position of the neck. The personal protective device as claimed in claim 4, wherein the other end of the sleeve has a gas flow opening, and the circular diameter of the gas flow opening is larger than the circular diameter of the combination part. The personal protective device of claim 6, wherein the gas flow port is provided with a buffer groove at a position corresponding to the gas discharge portion, and the buffer groove is recessed inward from the inner surface of the gas flow port. The personal protective device as claimed in claim 1, wherein the sleeve is provided with a plurality of second elastic rings at intervals around the outer periphery of the other end of the sleeve. The personal protective device according to any one of claims 1 to 8, wherein the gas generator body further includes a firing unit that is triggered to drive the gas generator body to inflate the at least one airbag unit, The personal protective device further includes a driving line, one end of the driving line is connected to the firing unit to trigger the firing unit, and the other end of the driving line is set at a predetermined position. The personal protective device according to any one of claims 1 to 8, wherein the gas generator body further includes a firing unit that is triggered to drive the gas generator body to inflate the at least one air bag unit, The personal protective device further includes a sensing unit and a control unit provided on the device body. The sensing unit is electrically connected to the control unit and It is configured to sense the device body to generate a three-axis acceleration signal, and the control unit controls the firing unit to act when it determines that a protection condition is met based on the three-axis acceleration signal.