WO2021114522A1

WO2021114522A1 - Wearable underwater life-saving device

Info

Publication number: WO2021114522A1
Application number: PCT/CN2020/083124
Authority: WO
Inventors: 刘伟; 徐先良; 虞文武; 陈丽华; 姜海军; 许西慧; 殷荣兴
Original assignee: 常州机电职业技术学院
Priority date: 2019-12-11
Filing date: 2020-04-03
Publication date: 2021-06-17
Also published as: CN110920835B; CN110920835A

Abstract

A wearable underwater life-saving device, comprising a device body (8) and a strap (9), wherein the device body (8) comprises a housing (1), a cover (2), material cartridges (3) and an air bag (7); the housing (1) is internally provided with two first partitions (103) arranged in parallel; a second partition (106) is connected between the two first partitions (103); the two first partitions (103) and the second partition (106) divide the inner part of the housing (1) into a reaction cavity (109), an accommodating cavity (110) and two insertion cavities (112); the first partitions (103) are provided with spike parts (104); two material cartridges (3) are disposed at the two insertion cavities (112) respectively, and are connected to the housing (1); the two material cartridges (3) are each internally loaded with a material bag (6); and the contents of the two material bags (6) react to generate gas to inflate the air bag (7). The life-saving device may free the limbs, shorten the waiting time for rescue, and improve the life-saving efficiency.

Description

Wearable underwater life-saving device

Technical field

The invention belongs to the technical field of life-saving devices, and particularly relates to a wearable underwater life-saving device.

Background technique

Life-saving devices are a type of device that saves people in times of crisis. For example, life-saving hammers on buses, fire extinguishers and AEDs in public places, and life buoys provided by cruise ships and swimming pools are all counted as life-saving devices in a broad sense.

Taking underwater rescue as an example, rescue vessels, life buoys, life jackets and other equipment can provide safety first aid protection in the event of drowning or other emergencies, and minimize harm. However, the rescue vessel is large in size and needs to be operated by humans. The cost is high, the rescue threshold is high, and the rescue efficiency is low. It cannot reach the scene in time for rescue after the danger occurs. The lifebuoy is not easy to carry, and most of the time it is an accessory configuration of the rescue vessel. The use conditions are limited by the rescue time of the rescue vessel, and it cannot provide good help. Life jackets need to be worn in advance, which is not conducive to the activities of the wearer, and the wearing experience is extremely poor.

For this reason, people invented life-saving devices that can be worn on the body. This type of life-saving device can be worn on the wrist or other parts of the limbs like a bracelet. When drowning, cramps, etc. occur, the life-saving device only needs to be triggered. The airbag can be ejected by pressing the button, so that the human body can float to the surface of the water in a short time, and then can wait for the follow-up rescuers to arrive, gaining valuable time for the implementation of safer rescue.

However, the shortcomings of this kind of life-saving device also exist. Because the parts are worn on the limbs, especially the wrist, after the airbag is released, the strong buoyancy generated by the airbag will restrict the movement of arms or other limbs wearing the life-saving device in the water. . Therefore, once the life-saving device is triggered, the human body can only float on the water and wait for rescue, and it is difficult to leave the current waters. It can be seen that this type of life-saving device still has room for further improvement.

Summary of the invention

In order to solve the problems in the prior art, the present invention proposes a wearable underwater life-saving device.

In order to achieve the above objective, the present invention adopts the following technical solutions: a wearable underwater life-saving device, which includes a device body and a strap, the device body is connected to the strap, and the device body includes a casing, a cover, a bullet, and An airbag, wherein two first partitions arranged in parallel are arranged in the housing, a second partition is connected between the two first partitions, and the inside of the housing is divided by the two first partitions and the second partition A reaction cavity, a receiving cavity, and two insertion cavities are provided. The number of the projectiles is two, which are respectively arranged at the two insertion cavities and connected to the shell. The two projectiles are each loaded with a material bag. The content of the material bag reacts to produce gas, the first partition is provided with a spiked part and a through hole, the spiked part is opposite to the position of the material bag, the through hole connects the reaction chamber with the insertion cavity, and the airbag is arranged in the receiving chamber. In the cavity, a connecting tube is provided on the second partition plate, and the connecting tube is sealed to the airbag, the connecting tube is provided with an air outlet that communicates the reaction chamber with the airbag, and an opening is provided on the housing, The opening is communicated with the accommodating cavity, the opening is provided with a cover, the cover is connected with the housing, and the cover pops out after the airbag is inflated and expanded.

Furthermore, the outer part of the casing extends to form an insertion portion on the side of the insertion cavity, and the two bullets are arranged in the insertion portion.

Furthermore, the bullet includes an end cover and a screw sleeve, the end cover and the screw sleeve are detachably connected, the end cover is provided with a piercing hole, the piercing hole is positioned opposite to the spiked part, and the screw A loading cavity for loading the material bag is formed in the sleeve, the outer wall of the screw sleeve is provided with an external thread, the inner wall of the insertion portion is provided with an internal thread, and the screw sleeve is connected with the insertion portion through a threaded fit.

Furthermore, the outer end of the screw sleeve is provided with a non-slip boss, and the outer circular surface of the non-slip boss is provided with knurled stripes.

Furthermore, the outer peripheral surface of the insertion portion is provided with connecting ribs evenly distributed along the circumference.

Furthermore, the contents of the two bags are aluminum sulfate solution and sodium bicarbonate solution.

Furthermore, one end of the cover is pivotally connected to the housing, and the other end is clamped to the housing.

Furthermore, an adhesive body is provided at the end of the connecting pipe, and the cross-section of the adhesive body is a rhombus structure.

Furthermore, the front half of the housing is semi-cylindrical, the rear half is cuboid, the rear of the housing is provided with a connecting buckle, and the strap is connected to the housing through the connecting buckle.

Furthermore, the length of the device body is 10-20 cm, the height is 5-10 cm, and the width is 5-8 cm.

Compared with the prior art, the present invention has the beneficial effects: the present invention provides a wearable underwater life-saving device that can be worn on the chest to liberate the limbs, and solves the problem that the existing life-saving device is difficult to stay away from the existing waters. It has the following advantages:

1. The life-saving device can be worn on the chest of the user, liberating the limbs, triggering the airbag to inflate and pop up, it can drive the user to float on the water, and then use the free limbs to paddle to get out of the current waters, shortening waiting for rescue Time, greatly improving the life-saving efficiency;

2. The projectiles in the life-saving device are filled independently, so new projectiles can be added to achieve the purpose of repeated use, which greatly reduces the cost of use;

3. The life-saving device is small in size, easy to carry and store.

Description of the drawings

Figure 1 is a schematic diagram of the three-dimensional structure of a wearable underwater life-saving device according to the present invention;

2 is a schematic diagram of the top view structure of a wearable underwater life-saving device according to the present invention;

Figure 3 is a schematic diagram of the front view of a wearable underwater life-saving device according to the present invention;

4 is a cross-sectional view of the structure in the direction of A-A in FIG. 3 according to the present invention;

Fig. 5 is a sectional view of the structure in the direction B-B in Fig. 3 according to the present invention;

Fig. 6 is a schematic diagram of a human body wearing a wearable underwater life-saving device according to the present invention.

1-shell, 2-cover, 3-bullet, 4-end cap, 5-screw sleeve, 6-material bag, 7-airbag, 8-device body, 9-strap, 101-insertion, 102- Connecting buckle, 103-first partition, 104-spike part, 105-through hole, 106-second partition, 107-connecting tube, 108-vent hole, 109-reaction cavity, 110-receiving cavity, 111- Buckle, 112-insertion cavity, 113-connecting rib, 201-card slot, 401-puncture hole, 501-non-slip boss.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.

This embodiment is described with reference to Figures 1-6, a wearable underwater life-saving device, which includes a device body 8 and a strap 9. The device body 8 is connected to the strap 9, and the device body 8 includes a housing 1 and a cover. 2. The material bomb 3 and the airbag 7. The casing 1 is provided with two first partitions 103 arranged in parallel, a second partition 106 is connected between the two first partitions 103, and the second partition 106 passes through the two first partitions 103. The partition 103 and the second partition 106 divide the inside of the housing 1 into a reaction chamber 109, a receiving chamber 110, and two insertion chambers 112. The number of the bullets 3 is two, and they are respectively arranged in the two insertion chambers 112. And connected to the shell 1, the two bullets 3 are respectively loaded with a material bag 6, the contents of the two material bags 6 react to generate gas, the first partition 103 is provided with a spike 104 and a through hole 105, the spiked portion 104 is positioned opposite to the material bag 6, the through hole 105 communicates the reaction chamber 109 with the insertion chamber 112, the air bag 7 is arranged in the receiving cavity 110, and the second partition 106 is provided with a connecting tube 107 , The connecting tube 107 is connected to the airbag 7 in a sealed manner. The connecting tube 107 is provided with an air outlet 108 which connects the reaction chamber 109 with the airbag 7, and the housing 1 is provided with an opening which communicates with the receiving cavity 110 A cover 2 is provided at the opening, and the cover 2 is connected with the housing 1, and the cover 2 pops out after the airbag 7 is inflated and inflated.

In this embodiment, the housing 1 is made of hard plastic, and the airbag 7 is a flexible bag made of PP material. During the movement of the bullet 3 into the insertion cavity 112, the material bag 6 can be ruptured under the puncture of the spiked part 104. When the content is released, the content flows into the reaction chamber 109 to react and generate gas to inflate the airbag 7. After the airbag 7 is inflated and inflated, it can burst open the cover 2 and pop out, generating buoyancy and causing the wearer to float up.

The user wears the life-saving device on the chest or waist through the strap 9. When using, only need to push the two bullets 3 into their respective insertion cavities so that the spiked part 104 pierces the bag 6 in the bullet 3 After the material bag 6 is punctured, its contents are released and mixed in the reaction chamber 109 to cause a chemical reaction, releasing a large amount of gas. As the gas increases, it gradually enters the airbag 7 to inflate it. After the airbag 7 expands, the cover 2 is opened to eject the housing 1 to generate a certain buoyancy. At this time, the user floats on the water under the buoyancy. Because the life-saving device is located in front of the user's chest, the user's limbs are not bound, and can be swiped in the water to generate forward thrust to take the user away from the current waters. After use, remove the bullet 3, then empty the airbag 7 and fold it into the original shape and store it in the containing chamber 110. After taking out the bag 6 in the bullet 3, replace it with a new bag 6 for downloading. Times used.

The exterior of the housing 1 in this embodiment extends, and an insertion portion 101 is formed on the side of the insertion cavity 112. The two bullets 3 are arranged in the insertion portion 101, and the bullets 3 include an end cover 4 and a screw sleeve 5. The end cap 4 and the screw sleeve 5 are detachably connected. The end cap 4 is provided with a piercing hole 401, and the piercing hole 401 is positioned opposite to the spiked portion 104. The screw sleeve 5 forms a loading bag 6 In the loading cavity, the outer wall of the threaded sleeve 5 is provided with external threads, the inner wall of the insertion portion 101 is provided with internal threads, and the threaded sleeve 5 is connected with the inserting portion 101 by threading, and the threaded sleeve 5 can be screwed with the inserting portion 101 So as to realize pushing in and taking out, the thread has self-locking ability and sealing performance at the same time, avoiding displacement due to axial pressure and gas leakage. In addition, the screw sleeve 5 and the end cap 4 are connected by a tight fit, which is convenient and quick to disassemble, and realizes the rapid filling of the material bag 6. The outer end of the threaded sleeve 5 is provided with a non-slip boss 501, and the outer surface of the non-slip boss 501 is provided with knurled stripes. The non-slip boss 501 can improve the contact friction force of the human hand in the water, and facilitate the user to spin quickly. The moving material bullet 3 thus realizes the purpose of the material bag 6 being pierced in time. The outer peripheral surface of the insertion portion 101 is provided with connecting ribs 113 evenly distributed along the circumference to improve the connection strength of the insertion portion 101. The contents of the two material bags 6 are aluminum sulfate solution and sodium bicarbonate solution respectively. After the aluminum sulfate solution and sodium bicarbonate solution meet in the reaction chamber 109, they can react to produce a large amount of carbon dioxide to inflate the airbag 7, and the material bag 6 The airbag 7 can be made of the same material. One end of the cover 2 is pivotally connected to the housing 1, and the other end is clamped to the housing 1. The cover 2 is provided with a slot 201, and the housing 1 is provided with a buckle 111. The 201 cooperates to realize the clamping connection between the cover body 2 and the housing 1. This clamping force is very small and can be destroyed during the inflation process of the airbag 7 so as to ensure the rapid release of the airbag 7. The end of the connecting tube 107 is provided with an adhesive body, the cross-section of the adhesive body is a rhombus structure, and the connecting method of the connecting tube 107 and the airbag 7 is the same as the connecting method of the infusion bag and the bag mouth part. The strength and tightness are good, and it can meet the air tightness requirements. The front half of the housing 1 is a semi-cylindrical shape, and the rear half is a rectangular parallelepiped. The rear part of the housing 1 is provided with a connecting buckle 102. The strap 9 is connected to the housing 1 through the connecting buckle 102 to improve the strap. 9 The stability of the connection with the device body 8. The device body 8 has a length of 10-20 cm, a height of 5-10 cm, and a width of 5-8 cm. The preferred dimensions of the device body 8 are: length 15 cm, width 8 cm, and height 6 cm.

The wearable underwater life-saving device provided by the present invention is described in detail above. Specific examples are used in this article to illustrate the principles and implementation of the present invention. The description of the above embodiments is only used to help understand the present invention. At the same time, for those of ordinary skill in the art, according to the ideas of the present invention, there will be changes in the specific implementation and the scope of application. In summary, the content of this specification should not be understood as Restrictions on the invention.

Claims

A wearable underwater life-saving device, characterized in that it comprises a device body (8) and a strap (9), the device body (8) and the strap (9) are connected, and the device body (8) includes a shell (1), the cover body (2), the bullet (3) and the airbag (7). The casing (1) is provided with two first partitions (103) arranged in parallel, two first partitions A second partition (106) is connected between (103), and the inside of the housing (1) is divided into a reaction chamber (109) and a reaction chamber (109) through two first partitions (103) and a second partition (106). The receiving cavity (110) and the two insertion cavities (112), the number of the bullets (3) is two, which are respectively arranged at the two insertion cavities (112) and connected to the casing (1), and the two bullets (3) Each bag (6) is respectively loaded inside, and the contents of the two bags (6) react to generate gas. The first partition (103) is provided with a spiked portion (104) and a through hole (105). ), the spiked portion (104) is opposite to the position of the material bag (6), the through hole (105) connects the reaction cavity (109) with the insertion cavity (112), and the airbag (7) is arranged in the containing cavity (110) , The second partition (106) is provided with a connecting tube (107), the connecting tube (107) is connected to the airbag (7) in a sealed manner, and the connecting tube (107) is provided with an air outlet (108), the air outlet (108) The reaction chamber (109) is connected with the airbag (7), the housing (1) is provided with an opening, and the opening is communicated with the containing cavity (110), and the opening is provided with a cover (2), the cover The body (2) is connected with the casing (1), and the cover body (2) pops out after the airbag (7) is inflated and expanded.
The wearable underwater life-saving device according to claim 1, characterized in that: the outer part of the housing (1) extends, and an insertion part (101) is formed on the side of the insertion cavity (112), and the two materials The bullet (3) is arranged in the insertion part (101).
The wearable underwater life-saving device according to claim 2, wherein the bullet (3) includes an end cover (4) and a screw sleeve (5), and the end cover (4) and the screw sleeve (5) Removable connection, the end cap (4) is provided with a piercing hole (401), the piercing hole (401) is opposite to the spiked portion (104), and the screw sleeve (5) is formed with a load In the loading cavity of the material bag (6), the outer wall of the screw sleeve (5) is provided with external threads, the inner wall of the insertion portion (101) is provided with internal threads, and the screw sleeve (5) and the insertion portion (101) pass Threaded connection.
The wearable underwater life-saving device according to claim 3, characterized in that: the outer end of the screw sleeve (5) is provided with a non-slip boss (501), and the outer circle of the non-slip boss (501) The surface has knurled stripes.
The wearable underwater life-saving device according to claim 2, characterized in that: the outer peripheral surface of the insertion portion (101) is provided with connecting ribs (113) evenly distributed along the circumference.
The wearable underwater life-saving device according to claim 1, wherein the contents of the two material bags (6) are aluminum sulfate solution and sodium bicarbonate solution, respectively.
The wearable underwater life-saving device according to claim 1, wherein one end of the cover (2) is pivotally connected with the housing (1), and the other end is clamped with the housing (1).
The wearable underwater life-saving device according to claim 1, characterized in that: the end of the connecting pipe (107) is provided with an adhesive body, and the cross-section of the adhesive body is a rhombus structure.
The wearable underwater life-saving device according to claim 1, characterized in that: the front half of the casing (1) is semi-cylindrical, the rear half is rectangular parallelepiped, and the casing (1) The rear part is provided with a connecting buckle (102), and the back strap (9) is connected with the housing (1) through the connecting buckle (102).
A wearable underwater life-saving device according to claim 1, characterized in that the length of the device body (8) is 10-20 cm, the height is 5-10 cm, and the width is 5-8 cm.