CN107215440A - A kind of anti-life saving device from drowning - Google Patents

Abstract

The invention relates to an anti-drowning life-saving device, which comprises a life-saving air bag, a shell, a gas source steel cylinder, a control valve seat, a striker, a water-soluble tablet, a ram, a spring II and a water-through shell. Through holes are opened at both ends of the shell. One end is socketed with the rescue air bag, and the other end is sealed by the control valve seat. There is a gas source cylinder inside the shell, and the shell is not in contact with the gas source cylinder. The outlet end of the gas source cylinder is connected to the control valve seat, and the control valve seat is a hollow column. , the control valve seat is provided with an inflation flow hole penetrating through the hollow cavity, the control valve seat is tightly connected with one end of the housing and exposes the inflation flow hole to the inner cavity of the housing, a striker is installed in the hollow cavity of the control valve seat, and the striker The ram is separated from the ram by a water-soluble tablet, the ram is located in the water-through shell, the water-through shell is connected to the control valve seat, and the ram and the water-through shell jointly compress the spring II. The anti-drowning lifesaving device of the present invention has low cost, is easy to carry, has excellent safety and stability, and has excellent popularization and use value.

Description

An anti-drowning life preserver

technical field

The invention belongs to the field of lifesaving devices and relates to a lifesaving device for preventing drowning.

Background technique

The anti-drowning lifesaving device is a relatively common safety device. This device is mainly used to prevent suffocation caused by drowning when personnel accidentally fall into the water or near the water. At present, the common life-saving devices on the market mainly include wearable and There are two types of external projection.

The wearable life preserver is usually worn on the user's wrist or collar. In the event of a drowning accident, the user opens the high-pressure gas valve by pulling the trigger mechanism or automatically triggering by external conditions (such as immersion in water, etc.), so that the high-pressure gas is filled into the foldable life preserver. The airbag of the life preserver is used to lift the user out of the water by the buoyancy of the life preserver. This kind of life preserver can only be worn on the user's body, and the cost of use is relatively high. The force of the trigger mechanism pulls the trigger mechanism or the trigger mechanism fails, etc.) The life-saving device cannot perform the life-saving function. At the same time, some life-saving devices that rely on water immersion to trigger have high requirements for storage environment humidity, temperature and other conditions, and the equipment is prone to failure or accidental self-starting. For example, patent CN105501410A discloses a swimsuit-type anti-drowning intelligent life jacket, including a swimsuit-type life jacket body, an air bag, a trachea and a gas storage bottle. On the body of the lifejacket, there is a solenoid valve at the connection between the mouth of the gas cylinder and the trachea. The body of the lifejacket also includes an intelligent controller. The intelligent controller is connected to the drowning sensor switch on the diving goggle through a wire. , power supply module, pressure sensor, sound and light alarm, solenoid valve controller, operation display screen, GPS positioning module and satellite communication module or mobile phone communication module, the single-chip microcomputer controls the solenoid valve to open according to the time when the drowning sensor switch is intruded into the water, and the gas storage The bottle inflates the airbag, at the same time, the sound and light alarm emits sound and light, and the satellite communication module or mobile phone communication module sends out a rescue signal and the geographical position to the outside world. Distress signal, but the cost is expensive, and the promotional use is limited.

The external projectile lifesaving device refers to the life-saving equipment (lifebuoy or other buoyancy body, etc.) projected by the shore personnel to the drowning person by manpower or compressed gas to achieve the purpose of life-saving when launching a drowning accident. The cost of using this life-saving equipment It is relatively low but has a limited range of use. Generally, the life-saving equipment that is thrown by humans is usually used, and the effective throwing radius will not exceed 10m. The equipment itself is large in size. When using it, it is usually necessary to fix the equipment on the ground and set the relevant parameters of the corresponding launch orientation to achieve the purpose of lifesaving. Once a mistake occurs, it is difficult to have a second chance of recovery.

Therefore, it is of great significance to study a low-cost, easy-to-carry anti-drowning life-saving device with high safety and stability.

Contents of the invention

The object of the present invention is to overcome the above-mentioned problems in the prior art, and provide a low-cost, easy-to-carry anti-drowning lifesaving device with high safety and stability.

In order to achieve the above object, technical scheme of the present invention is:

An anti-drowning lifesaving device, including a rescue air bag, a shell, a gas source cylinder, a control valve seat, a striker, a water-soluble tablet, a ram, a spring II, and a water-through shell. There are through holes at both ends of the shell, and one end is sleeved The rescue airbag, the other end is sealed by the control valve seat;

A gas source cylinder is placed inside the housing, the housing is not in contact with the gas source cylinder, and the outlet end of the gas source cylinder is connected to the control valve seat;

The control valve seat is a hollow column, and the control valve seat is provided with an inflation flow hole passing through the hollow cavity, and the control valve seat is tightly connected with one end of the housing and exposes the inflation flow hole to the inner cavity of the housing ;

A striker is installed in the hollow cavity of the control valve seat, the striker is separated from the striker by a water-soluble tablet, the striker is located in the water-through shell, the water-through shell is connected with the control valve seat, and the striker and the water-through shell jointly compress the spring II.

As a preferred technical solution:

In the above-mentioned anti-drowning lifesaving device, an anti-reverse flow-limiting valve is installed in the through hole at one end of the casing sleeved to the rescue airbag, and the anti-reverse flow-limiting valve is mainly composed of an inflatable seat, a spring I and a small steel ball In the inflatable seat, there are inflatable hole I, inflatable hole II and an inflatable cavity passing through inflatable hole I and inflatable hole II. The spring I and the small steel ball are located in the inflatable cavity. One end is in contact with the small steel ball, the small steel ball is in contact with one end of the spring I, and the other end of the spring I is in contact with the gas filling hole II, the spring I presses the small steel ball, so that the small steel ball seals the gas filling hole, preventing gas backflow, preventing reverse flow and limiting flow The main function of the valve is to ensure that after the carbon dioxide gas flows into the airbag (or other forms of life-saving equipment), it will not cause gas reflux due to the reverse pressure difference between the airbag and the inflator. The outer shell, the conformal outer shell is connected with the shell through the shell buckle.

In the above-mentioned anti-drowning lifesaving device, the control valve seat is a hollow cylindrical structure, the side wall of the control valve seat is provided with threads, and the side wall of the control valve seat extends radially to a protruding step, and the protruding step will The control valve seat is divided into two sections, one section has a small hollow cavity and passes through the inflation flow hole, and the other section has a larger hollow cavity, the number of the inflation flow holes is 2 to 8, and the center of the inflation flow hole The line is perpendicular to the centerline of the hollow cavity.

In the above-mentioned anti-drowning lifesaving device, the gas source steel cylinder is covered with a protective cover, and the protective cover is a cylindrical body with an opening at one end and a vent hole at the other end, and the opening end of the protective cover is threadedly connected with the control valve seat. The shield does not come into contact with the housing.

In the above-mentioned anti-drowning lifesaving device, the sealed connection means that the inner wall of the housing and the outer wall of the control valve seat are connected by threads, and the end surface of the housing and the protruding step of the control valve seat are closely fitted by a flat gasket. .

In the above-mentioned anti-drowning lifesaving device, the water-soluble tablet is located between two sections of the hollow cavity in the control valve seat, the striker and the water-soluble tablet are separated by a connecting block, the striker is a cylindrical structure, and the middle of the striker is radially Extending, the end of the striker away from the connecting block is a chamfered surface and has a bevel.

In the above-mentioned anti-drowning lifesaving device, the water-through shell is threadedly connected to a section of the control valve seat that does not contain an inflatable flow hole, and four water-through holes are opened on the end surface of the water-through shell.

In the above-mentioned anti-drowning lifesaving device, the water-through shell is covered with a protective shell, and a cobalt chloride test paper is arranged between the water-through shell and the protective shell, and the cobalt chloride test paper can detect the humidity of the current environment , which can show whether the water-soluble tablet is stored damp and becomes invalid.

In the above-mentioned anti-drowning lifesaving device, the ram has a cylindrical structure, and the middle part extends radially to form a protruding step. Press, and the end of the ram away from the water-soluble tablet passes through the water-through shell and the protective shell.

In the above-mentioned anti-drowning lifesaving device, the end of the ram passing through the protective shell is connected to the safety plug, which can prevent the tablet from being damp and urge the ram and firing pin to work, avoiding the automatic activation of the life preserver, and at the same time, when the tablet fails Under certain circumstances, the safety plug can be pulled out, and the spring can directly push the striker to penetrate the gas source cylinder for use.

Beneficial effect:

(1) The anti-drowning life preserver of the present invention is inflated and opened after encountering water, which reduces the air resistance encountered in the throwing process of the life preserver and increases the throwing distance of the life preserver.

(2) A kind of anti-drowning lifesaving device of the present invention, the parts that make up the lifesaving device can be reused except high-pressure gas cylinders and water-soluble tablets, and the use cost is low.

(3) The anti-drowning lifesaving device of the present invention is small in size and light in weight, and is easy to carry.

(4) In the anti-drowning lifesaving device of the present invention, the top rescue airbag is provided with a conformal shell, and the bottom protective shell is provided with a safety bolt, which can effectively reduce the risk of broken buoyancy body and accidental self-starting of the lifesaving device during transportation and use. Possibility, improving the safety and stability of the life preserver.

Description of drawings

Fig. 1 is the structural representation of anti-drowning lifesaving device of the present invention;

Fig. 2 is the structural representation of anti-reverse current limiting valve of the present invention;

Fig. 3 is a half-section schematic diagram of the shell buckle;

Fig. 4 is a schematic cross-sectional view of the housing buckle;

Fig. 5 is a half-section schematic diagram of the protective cover;

Fig. 6 is the schematic diagram of protective cover cross-section;

Fig. 7 is a half-sectional schematic view of the control valve seat;

Figure 8 is a schematic cross-sectional view of the control valve seat;

Fig. 9 is a three-dimensional schematic view of the striker;

Figure 10 is a schematic front view of the striker;

Figure 11 is a schematic top view of the striker;

Figure 12 is a half-sectional schematic diagram of the water shell;

Fig. 13 is a schematic top view of the water shell;

Among them, 1-conformal shell, 2-rescue air bag, 3-anti-reverse flow limiting valve, 3.1-inflatable seat, 3.2-inflatable hole II, 3.3-inflatable cavity, 3.4-small steel ball, 3.5-inflatable hole Ⅰ, 3.6- Spring Ⅰ, 4-shell buckle, 5-shell, 6-protective cover, 7-air source cylinder, 8-control valve seat, 9-inflatable flow hole, 10-firing pin, 11-connecting block, 12-water soluble Tablet, 13-ram, 14-spring II, 15-protective shell, 16-safety lock, 17-cobalt chloride test paper, 18-water-through shell.

detailed description

The present invention will be further described below in combination with specific embodiments. It should be understood that these examples are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the teachings of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of the present application.

Example 1

An anti-drowning lifesaving device, as shown in Figure 1, includes a rescue air bag 2, a housing 5, a gas source cylinder 7, a control valve seat 8, a striker 10, a water-soluble tablet 12, a ram 13, a spring II 14 and a water-through shell 18 There are through holes at both ends of the housing 5, one end is sleeved with the rescue air bag 2, the inner wall of the housing 5 at the other end is connected with the outer wall of the control valve seat 8 through threads, and the end surface of the housing 5 and the protrusion of the control valve seat 8 The steps are tightly fitted by the flat gasket;

The anti-reverse flow limiting valve 3 is installed in the through hole at one end of the casing 5 socketed with the life-saving air bag 2, as shown in Figure 2, the anti-reverse flow limiting valve is mainly composed of an inflatable seat 3.1, a spring I 3.6 and a small steel ball 3.4. In the seat 3.1, there are gas charging holes I3.5, gas charging holes II3.2 and gas charging chambers 3.3 passing through gas charging holes I and gas charging holes II. Springs I3.6 and small steel balls 3.4 are located in the gas charging chambers 3.3. One end is in communication with the inner cavity of the housing, the other end is in contact with the small steel ball 3.4, the small steel ball is in contact with one end of the spring I3.6, the other end of the spring I3.6 is in contact with the inflation hole II3.2, and the rescue airbag 2 is covered with The conformal shell 1, the conformal shell 1 and the shell 5 are connected through the shell buckle 4, and the structural diagrams of the shell buckle are shown in Fig. 3 and Fig. 4;

A gas source steel cylinder 7 is placed inside the housing 5, and the outside of the gas source steel cylinder 7 is covered with a protective cover 6. As shown in Figures 5 and 6, the protective cover 6 is a cylindrical body with an opening at one end and a vent hole at the other end. The open end of 6 is threadedly connected with the control valve seat 8, the protective cover 6 is not in contact with the shell 5, and the gas outlet end of the gas source cylinder 7 is connected with the control valve seat 8;

As shown in Figure 7 and Figure 8, the control valve seat 8 is a hollow column, the side wall of the control valve seat is provided with threads, and the side wall of the control valve seat 8 extends radially to protrude steps, and the protruding steps will control the valve seat 8 Divided into two sections, one hollow cavity has a small volume and runs through the inflatable flow hole 9, the number of the inflatable flow hole 9 is 4, the centerline of the inflatable flow hole 9 is perpendicular to the centerline of the hollow cavity, and the volume of the other hollow cavity Larger, the control valve seat 8 is tightly coupled with one end of the housing 5 and exposes the inflation flow hole 9 to the inner cavity of the housing 5;

A striker 10 is installed in the hollow cavity of the control valve seat 8, the structure of the striker is shown in Figures 9-11, the striker 10 is a cylindrical structure, the middle of the striker 10 extends radially, the striker 10 and the striker 13 are separated by a water-soluble tablet 12, The ram 13 is located in the water-through shell 18, the structure of the water-through shell is shown in Figure 12 and Figure 13, the water-through shell 18 is connected to the control valve seat 8, and the ram 1 and the water-through shell 18 jointly compress the spring II14;

The water-soluble tablet 12 is located between the two sections of the hollow cavity in the control valve seat 8, the striker 10 and the water-soluble tablet 12 are separated by the joint block 11, and the end of the striker 10 away from the joint block 11 is an oblique cut surface and has a bevel;

The water passage shell 18 is threadedly connected with a section of the control valve seat 8 that does not contain the inflatable flow hole 9. There are 4 water passage holes on the end face of the water passage shell 18. A cobalt chloride test paper 17 is provided between the shell 18 and the protective shell 15;

The ram 13 has a cylindrical structure, the middle part extends radially to form a protruding step, the spring II 14 is set on the ram 13, and is co-extruded by the protruding step and the end face of the water-through shell 18, and the ram 13 is far away from the water-soluble tablet 12 One end passes through the water casing 18 and the protective casing 15 , and the end of the striker 13 passing through the protective casing 15 is connected to the safety bolt 16 .

Example 2

An anti-drowning lifesaving device, the basic structure of which is the same as that of Example 1, the difference is that there is no protective cover outside the gas source steel cylinder, and the life saving device can also effectively play the role of lifesaving, but the safety and stability of the gas source are compared with those of the embodiment 1's life saver is inferior.

Example 3

An anti-drowning lifesaving device, the basic structure of which is the same as that of Embodiment 1, the difference is that there is no anti-reverse flow limiting valve, and the lifesaving device can also effectively play the role of lifesaving, but it cannot prevent the gas from being filled into the rescue airbag and returning to the airflow path .

Example 4

An anti-drowning lifesaving device, the basic structure of which is the same as that of Embodiment 1, the difference is that there is no conformal shell, and the lifesaving device can also effectively play the role of lifesaving, but it cannot reduce the broken buoyancy body and accidental self-defense during transportation and use of the lifesaving device. The possibility of opening, the security and stability of use are relatively poor.

Claims (10)

1. a kind of anti-life saving device from drowning, it is characterized in that：Including life saving air bag, housing, source of the gas steel cylinder, control valve seat, striker, water-soluble Tablet, percussion hammer, spring II and water flowing shell, the two ends of housing are provided with through hole, and one end is socketed life saving air bag, and the other end is by control valve seat Sealed；

Enclosure interior is placed with source of the gas steel cylinder, and housing is not contacted with source of the gas steel cylinder, the outlet side connection control valve seat of source of the gas steel cylinder；

Control valve seat is the aerated flow metering-orifice that cavity in insertion is provided with hollow posts, control valve seat, control valve seat and the shell One end of body sealingly connects and makes the aerated flow metering-orifice in the inner chamber of the housing；

Striker is installed, striker is separated with percussion hammer by water-soluble tablet in the middle cavity of control valve seat, percussion hammer is located in water flowing shell, led to Water hull is connected with control valve seat, percussion hammer and the common compression spring II of water flowing shell.

2. a kind of anti-life saving device from drowning according to claim 1, it is characterised in that the one of the housing socket life saving air bag Anti-reverse flow-limiting valve is installed, the anti-reverse flow-limiting valve is mainly made up of inflating seat, spring I and small steel ball, inflating seat in the through hole at end In be provided with the inflatable chamber of air-filled pore I, air-filled pore II and insertion air-filled pore I and air-filled pore II, spring I and small steel ball are located at inflation In chamber, one end of air-filled pore I is connected with the inner chamber of housing, and the other end is contacted with small steel ball, a termination of small steel ball and spring I Touch, the other end of spring I is contacted with air-filled pore II, the outside of the life saving air bag is cased with conformal shell, the conformal shell and Housing is snapped connection by housing.

3. a kind of anti-life saving device from drowning according to claim 1, it is characterised in that the control valve seat is hollow cylindrical Structure, the side wall of control valve seat is provided with screw thread, and the side wall of control valve seat protrudes step by control valve radially outward from protrusion step The volume that seat is divided into cavity in the small volume of cavity and insertion aerated flow metering-orifice in two sections, one section, another section is larger, described to fill The quantity of gas flow orifice makes is 2~8, and the central axis of the aerated flow metering-orifice is in the center line of middle cavity.

4. a kind of anti-life saving device from drowning according to claim 3, it is characterised in that protection is cased with outside the source of the gas steel cylinder Cover, protective cover is the cylindrical body that one end open and the other end have passage, and the openend of protective cover is threadedly coupled with control valve seat, Protective cover is not contacted with housing.

5. a kind of anti-life saving device from drowning according to claim 3, it is characterised in that the sealed attachment refers to the interior of housing The outer wall of wall and control valve seat is connected through a screw thread, and the end face of housing and the protrusion step of control valve seat are tight by planar sealing pad It is closely connected to close.

6. a kind of anti-life saving device from drowning according to claim 3, it is characterised in that the water-soluble tablet is located at control valve seat In interior two sections between cavity, the striker is separated with water-soluble tablet by being connected block, and the striker is in the middle of cylindrical-shaped structure, striker Radially extend, scarf is in the one end of striker away from linking block and is provided with groove.

7. a kind of anti-life saving device from drowning according to claim 3, it is characterised in that the water flowing shell is free of with control valve seat 4 limbers are provided with one section of threaded connection of aerated flow metering-orifice, the end face of the water flowing shell.

8. a kind of anti-life saving device from drowning according to claim 7, it is characterised in that the outside of the water flowing shell is cased with protection Shell, is provided with paper of cobalt chloride,test between water flowing shell and containment vessel.

9. a kind of anti-life saving device from drowning according to claim 8, it is characterised in that the percussion hammer is cylindrical-shaped structure, in Between partially radially extension form protrusion step, spring II is enclosed on percussion hammer, extruded jointly by the end face of protrusion step and water flowing shell, The one end of the percussion hammer away from water-soluble tablet is passed from water flowing shell and containment vessel.

10. a kind of anti-life saving device from drowning according to claim 9, it is characterised in that the percussion hammer passes the one of containment vessel End connection lock.