CN111572732B

CN111572732B - Automatic lifesaving bracelet of pressure control

Info

Publication number: CN111572732B
Application number: CN202010287451.3A
Authority: CN
Inventors: 杨阳; 王权; 明鑫培; 漆彪强
Original assignee: Jiangsu University
Current assignee: Jiangsu University
Priority date: 2020-04-13
Filing date: 2020-04-13
Publication date: 2022-01-11
Anticipated expiration: 2040-04-13
Also published as: CN111572732A

Abstract

The invention discloses a pressure control automatic lifesaving bracelet, which comprises a lacing, wherein a pressure control trigger device and a gas generating device are arranged on the lacing, a folding air bag is arranged above the lacing, gas output ends at two corresponding sides of the gas generating device are connected with a rough ventilation hose, and the rough ventilation hose is connected with the folding air bag; the pressure control trigger device and the gas generating device are communicated with each other through a one-way conduit and a fine vent hose; the pressure control trigger device comprises an induction piston, a sealing ring, a spring, an adjusting piston and an adjusting bolt; the induction piston is connected with the adjusting piston through a spring; the adjusting piston is connected with the adjusting bolt through threads, and the spring and the adjusting bolt are used for adjusting the starting depth of the life-saving bracelet; the gas generating device is internally provided with a reactant which reacts with water to form a body for expanding the folding air bag for a carrier to float on the water surface, thereby effectively solving the problem that the child lacking self-rescue ability falls into water or the carrier is in confusion and the bracelet cannot be started normally.

Description

Automatic lifesaving bracelet of pressure control

Technical Field

The invention belongs to the technical field of water life saving, and particularly relates to a pressure control automatic life saving bracelet.

Background

As the living standard of people increases, more and more people begin to pay attention to physical exercise. Swimming as a whole-body exercise is increasingly popular with all age classes, and the people who keep swimming can shape muscle lines, strengthen muscle strength, improve bone and exercise heart and lung ability. In addition to that diving has begun to be pursued by many young people as an extreme sport. However, when people use water to exercise bodies and pursue stimulation or underwater work, some dangerous emergencies such as cramping of hands and feet, weakness of limbs and the like are inevitable. A plurality of drowning events occur every year, and particularly, children drown, so that great loss is caused to the children and the family.

As for the existing commonly used life-saving equipment, such as a life buoy or a life jacket, the life buoy or life jacket has the limitations of overlarge volume, long inflation time and the like, is inconvenient to carry in the swimming process, and cannot play a role in diving or underwater operation. Moreover, once an emergency situation, such as a flood or a water fall due to foot loss, the conventional lifesaving equipment cannot fully play a lifesaving role, and the life safety of the distressed people cannot be guaranteed. Moreover, some swimming enthusiasts do not use life buoys or life jackets in the process of swimming and relaxing again, and drowning accidents are easy to happen once emergencies occur.

At present, some lifesaving bracelets have appeared in the market, work in a mode of inflating an air bag by a compressed air tank, and a starting mode is basically limited to manual operation. The electronic bracelet has a complex structure and high manufacturing cost. As for some life saving bracelets appearing on the market at present, there are following various drawbacks:

1. the compressed gas tank is generally made of metal, has large mass and volume, and influences the underwater activities of users.

2. The manual starting mode cannot sufficiently cope with emergency situations, such as the situation that children fall into water or people falling into water lose consciousness and the like and cannot save themselves.

3. The electron bracelet structure is complicated, and the cost is high, uses the risk that has the short circuit that leaks under water, and the reliability is not enough.

4. The repeated use of the compressed gas tank needs the additional inflating equipment, and the compressed gas tank is not easy to carry.

Therefore, a life-saving bracelet which is convenient to carry, simple in structure and capable of being automatically triggered according to environmental requirements is needed.

Disclosure of Invention

The invention aims to provide a life-saving bracelet to solve the technical problems that existing life-saving equipment is large in size, not easy to carry, and lack of a self-starting function. The life-saving bracelet provided by the invention has two starting modes of manual operation and automatic operation, and in addition, the starting depth of the bracelet can be adjusted, so that the life-saving bracelet can be automatically started at different depths below the water surface. When a user has an accident during swimming or carelessly falls into water with the user, the trigger device can be manually opened for self rescue. When the carrier loses the ability of independently opening the trigger device, after the body sinks to a certain degree, the pressure control trigger device can be automatically started along with the increase of the pressure in water, the gas generating device immediately generates a large amount of gas to fill the folding air bag, and the folding air bag can be used for the carrier to float on the water surface after being inflated to wait for rescue.

In order to realize the purpose of the invention, the invention is realized by the following technical scheme:

a pressure control automatic life saving bracelet, comprising: pressure control trigger device, gas generating device, folding gasbag, frenulum, one-way pipe, thin breather hose, thick breather hose. The pressure control trigger device and the gas generating device are both arranged on the lacing tape through clamping grooves, and the folding air bag is arranged at the upper parts of the pressure control trigger device and the gas generating device;

the two corresponding sides of the gas generating device are respectively provided with a gas output end, each gas output end is connected with a coarse ventilation hose, and the gas output end of the coarse ventilation hose is connected with the folding airbag; a one-way conduit and a fine vent hose are arranged between the pressure control trigger device and the gas generating device; the one-way catheter and the fine vent hose are used for communicating the pressure control trigger device and the gas generating device;

the pressure control trigger device comprises an induction piston, a sealing ring, a spring, an adjusting piston and an adjusting bolt; the induction piston is connected with one end of the adjusting piston through a spring; the other end of the adjusting piston is connected with the adjusting bolt through threads; sealing rings are respectively arranged on the induction piston and the adjusting piston; the sealing rings are respectively used for sealing the inlets of the one-way catheter and the fine vent hose;

reactants are placed in the gas generating device and react violently after contacting with water to generate a large amount of gas, and the gas is used for expanding the folded airbag; the spring and the adjusting bolt in the pressure control trigger device are used for adjusting the starting depth of the life-saving bracelet, so that the life-saving bracelet can be automatically started at different depths below the water surface;

the pressure control trigger device can be triggered manually or automatically according to the environmental pressure;

a layer of PTFE membrane is arranged between the gas generating device and the gas channel of the folded airbag, so that reactants in the gas generating device are limited in the gas generating device, and gas generated in the gas generating device can rapidly enter the folded airbag.

Furthermore, the pressure control trigger device and the gas generating device are connected with the fine vent hose through the one-way conduit.

Further, the reactant is sodium peroxide.

Furthermore, the two ends of the lace are connected in a buckling and buckling hole matching mode.

Furthermore, the gas generating device and the folded airbag are both made of heat-resistant materials.

Has the advantages that:

(1) the utility model provides a lifesaving bracelet to solve current lifesaving equipment bulky, be difficult for carrying, lack technical problem such as self-starting function. The life-saving bracelet provided by the invention has two starting modes of manual operation and automatic operation, in addition, the starting depth of the bracelet can be adjusted, the life-saving bracelet can be automatically started at different depths below the water surface, and the problem that the bracelet cannot be normally started when a child without self-rescue ability falls into water or a carrier is in a hurry is effectively solved.

(2) The gas generating device and the folding airbag are made of heat-resistant materials, so that the gas generating device has good elasticity, good physical properties and good mechanical strength, and is beneficial to the comfort and safety of users; meanwhile, the high-temperature resistant air bag is high in temperature resistance, high in strength and impact resistant, and is favorable for the reliability of the air bag.

Drawings

The invention is further described below with reference to the accompanying drawings.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the structure of the pressure control trigger device, the gas generating device, the one-way conduit, the fine air hose and the coarse air hose of the present invention;

FIG. 3 is a schematic view of the structure of the pressure control trigger device and the foldable air bag;

fig. 4 is a partial cross-sectional view of the present invention.

The reference numbers are as follows:

1-a pressure control trigger device; 2-a one-way catheter; 3-a gas generating device; 4-coarse air hose; 5-folding the air bag; 6-fine air hose; 7-tying a lace; 8-an induction piston; 9-sealing ring; 10-a spring; 11-an adjusting piston; 12-adjusting the bolt.

Detailed Description

The present invention is further illustrated by the following figures and specific examples, which are to be understood as illustrative only and not as limiting the scope of the invention, which is to be given the full breadth of the appended claims and any and all equivalent modifications thereof which may occur to those skilled in the art upon reading the present specification.

As shown in fig. 1, an embodiment of the present invention is a pressure-controlled automatic life-saving bracelet, including: the device comprises a pressure control trigger device 1, a one-way catheter 2, a gas generating device 3, a thick ventilation hose 4, a folded air bag 5, a thin ventilation hose 6 and a lacing 7; the pressure control trigger device 1 and the gas generating device 3 are arranged on the lacing 7 through clamping grooves;

two corresponding sides of the gas generating device 3 are respectively provided with a gas output end, each gas output end is connected with a coarse ventilation hose 4, and the gas output end of the coarse ventilation hose 4 is connected with the folding airbag 5; a one-way conduit 2 and a fine vent hose 6 are arranged between the pressure control trigger device 1 and the gas generating device 3; the one-way catheter 2 and the fine vent hose 6 are used for communicating the pressure control trigger device 1 and the gas generating device 3;

the gas generating device 3 is filled with a reactant sodium peroxide which can react with water violently to generate a large amount of oxygen;

the gas generating device 3 is connected with the folding airbag 5 through a thick ventilation hose 4; a PTFE membrane is provided between the gas generator 3 and the coarse air hose 4 so that the reactant in the gas generator 3 is confined within the gas generator 3 and the gas generated in the gas generator 3 can rapidly enter the folded airbag 5.

Referring to fig. 2 and 3, the folded airbag 5 is connected with the clamping groove on the tie 7 through a bolt; the one-way tube 2 is mounted to the left of the fine air hose 6.

As shown in fig. 4, the pressure control triggering device 1 includes: the device comprises an induction piston 8, a sealing ring 9, a spring 10, an adjusting piston 11 and an adjusting bolt 12; one ends of the induction piston 8 and the adjusting piston 11 are respectively connected through a spring 10; the other end of the adjusting piston 11 is connected with an adjusting bolt 12 through threads; 2 sealing rings 9 are arranged on the induction piston 8; 1 sealing ring 9 is arranged on the upper surface of the adjusting piston 11; for sealing the inlets of the one-way duct 2 and the fine air hose 6, respectively;

in a normal unused state, a sealing ring 9 on the induction piston 8 is positioned at a position corresponding to the one-way guide pipe 2 and is used for sealing the inlet of the one-way guide pipe 2;

when a carrier is in accident during swimming or falls into water carelessly, after a body sinks to a certain degree, along with the increase of the pressure intensity in the water, the pressure pushes the induction piston 8 to move towards the right side shown in the figure, water enters the gas generation device 3 through the one-way pipeline 2 and reacts violently with sodium peroxide serving as a reactant in the gas generation device 3 to generate a large amount of oxygen which is filled into the folding air bag 5 through the thick ventilation hose 4, because of the existence of the thin ventilation hose 6, the pressure intensities in the gas generation device 3, the pressure control trigger device 1 and the folding air bag 5 can be basically consistent, along with the generation of the gas, the pressure intensity in the whole device is continuously increased and is pushed to restore the initial state after being increased to a certain degree, a water inlet is blocked by a sealing ring 9 arranged on the induction piston 8, and the whole device is sealed. The folding air bag 5 can be inflated to float on the water surface for the carrier to wait for rescue.

The pressure control automatic life-saving bracelet provided by the invention can also be started manually, and the specific operation is as follows: the specific working process is consistent with the automatic starting mode by directly pressing the induction piston 8.

The pressure control automatic lifesaving bracelet provided by the invention can adjust the compression degree of the spring 10 through the adjusting bolt 12, so that the thrust of the spring 10 borne by the induction piston 8 is changed, and the pressure control trigger device 1 is automatically started under the conditions of different external pressures, namely different water depths.

The pressure control automatic lifesaving bracelet provided by the invention has the advantages of simple structure, small volume, good reliability, repeated use and no influence on swimming of a user. When a user is in drowning danger, the automatic starting can be realized according to the specific requirements set by the user in advance, and the self-rescue purpose is achieved.

Description of the drawings: the above embodiments are only used to illustrate the present invention and do not limit the technical solutions described in the present invention; thus, while the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted; all such modifications and variations are intended to be included herein within the scope of this disclosure and the present invention and protected by the following claims.

Claims

1. A pressure control automatic lifesaving bracelet is characterized by comprising a pressure control trigger device (1), a gas generating device (3), a folding air bag (5), a lacing (7), a one-way conduit (2), a thin ventilating hose (6) and a thick ventilating hose (4); the pressure control trigger device (1) and the gas generating device (3) are both arranged on the lacing (7) through clamping grooves, and the folding air bag (5) is arranged on the upper parts of the pressure control trigger device (1) and the gas generating device (3);

two corresponding sides of the gas generating device (3) are respectively provided with a gas output end, each gas output end is connected with a coarse ventilation hose (4), and the gas output end of the coarse ventilation hose (4) is connected with the folding airbag (5); a one-way catheter (2) and a fine vent hose (6) are arranged between the pressure control trigger device (1) and the gas generating device (3); the one-way catheter (2) and the fine vent hose (6) are used for communicating the pressure control trigger device (1) with the gas generating device (3);

the pressure control trigger device (1) comprises an induction piston (8), a sealing ring (9), a spring (10), an adjusting piston (11) and an adjusting bolt (12); the induction piston (8) is connected with one end of the adjusting piston (11) through a spring (10) respectively; the other end of the adjusting piston (11) is connected with an adjusting bolt (12) through threads; the induction piston (8) and the adjusting piston (11) are respectively provided with a sealing ring (9); the sealing ring (9) is respectively used for sealing the inlets of the one-way conduit (2) and the fine vent hose (6);

a reactant is placed in the gas generating device (3), and reacts to generate gas after contacting with water, so that the folded airbag (5) is expanded;

a PTFE film is arranged between the gas generating device (3) and the gas channel of the folded airbag (5), so that reactants in the gas generating device (3) are limited in the gas generating device (3), and gas generated in the gas generating device (3) can enter the folded airbag (5).

2. The pressure-controlled automatic life-saving bracelet of claim 1, wherein the reactant is sodium peroxide.

3. The pressure control automatic lifesaving bracelet of claim 1, wherein the gas generating device (3) and the folded airbag (5) are both made of heat-resistant materials.

4. The pressure control automatic life-saving bracelet of claim 1, wherein two ends of the lacing (7) are connected by means of a snap-fit grommet.

5. The pressure control automatic life saving bracelet of claim 1, wherein the spring (10) and the adjusting bolt (12) in the pressure control trigger device (1) are used for adjusting the starting depth of the life saving bracelet, so that the life saving bracelet can be automatically started at different depths below the water surface.

6. Pressure control automatic life saving bracelet according to claim 1, characterized in that the pressure control triggering device (1) can be triggered either manually or automatically according to the ambient pressure.