CN107215440B - Drowning-prevention lifesaving device - Google Patents

Abstract

The invention relates to an anti-drowning life preserver, comprising a life-saving air bag, a casing, an air source steel cylinder, a control valve seat, a striker, a water-soluble tablet, a striker, a spring II and a water-passing casing. The two ends of the casing are provided with through holes. One end is sleeved with the life-saving airbag, and the other end is sealed by the control valve seat. A gas source cylinder is placed inside the casing, and the casing is not in contact with the gas source cylinder. The gas outlet end of the gas source cylinder is connected to the control valve seat, which is a hollow column. , the control valve seat is provided with an inflation flow hole penetrating the hollow cavity, the control valve seat is sealed with one end of the shell and the inflation flow hole is exposed in the inner cavity of the shell, and a firing pin is installed in the hollow cavity of the control valve seat. The ram is separated from the ram by a water-soluble tablet, the ram is located in the water-passing casing, the water-passing casing is connected with the control valve seat, and the ram and the water-passing casing jointly compress the spring II. The anti-drowning life preserver of the 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 saver

technical field

The invention belongs to the field of life-saving devices, and relates to an anti-drowning life-saving device.

Background technique

The anti-drowning life-saving device is a relatively common safety device. This device is mainly used to prevent people from suffocating due to drowning when people accidentally fall into the water or at the waterside. At present, the common life-saving devices on the market mainly include wearable and There are two types of external projectiles.

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 air valve by pulling the trigger mechanism or automatically triggered by external conditions (such as water immersion, etc.), so that the high-pressure gas is filled into the fold. The airbag, which relies on the buoyancy of the life preserver to lift the user out of the water, this type of life preserver can usually only be worn on the user, the use cost is high, and under certain circumstances (such as the user cannot pass himself due to excessive panic) The force to pull the trigger mechanism or the trigger mechanism fails, etc.) the life-saving device cannot play the life-saving function. At the same time, some life-saving equipment that relies on water immersion triggers have higher requirements on the humidity, temperature and other conditions of the storage environment, and the equipment is prone to failure or accidental self-starting, etc. , For example, patent CN105501410A discloses a swimsuit type anti-drowning intelligent life jacket, including a swimsuit type life jacket body, an airbag, a trachea and a gas cylinder, the airbag and the gas cylinder are connected by a trachea, and the airbag, the gas cylinder and the trachea are fixedly arranged in the trachea. On the body of the life jacket, a solenoid valve is provided at the connection between the mouth of the gas cylinder and the trachea. The body of the life jacket also includes an intelligent controller. The intelligent controller is connected to the drowning sensor switch on the diving goggle through a wire. The intelligent controller includes a single-chip microcomputer and a drowning sensor. , power 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 and gas storage according to the time when the drowning sensor switch is in the water. The bottle inflates the airbag, and at the same time, the sound and light alarm emits sound and light, and the satellite communication module or mobile phone communication module sends a rescue signal and location to the outside world. Although the device is highly intelligent, it can automatically send out according to changes in the external environment. The distress signal is expensive, and its popularization is limited.

External ejection lifesaving device refers to that when a drowning accident is launched, the lifesaving equipment (lifebuoy or other buoyant body, etc.) is projected by the shore personnel to the drowning person by manpower or compressed gas to achieve the purpose of saving life. The use cost of this lifesaving equipment It is relatively low but has a limited range of use. Usually, the life-saving equipment that is thrown by manpower is usually used, and the effective throwing radius will not exceed 10m. Although the life-saving equipment that uses compressed gas for throwing has a longer range (can reach 100m or more), but The equipment itself is relatively large, and 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 life-saving.

Therefore, it is of great significance to research a low-cost, portable and high-use safety and stability anti-drowning life-saving equipment.

SUMMARY OF THE INVENTION

The purpose of the present invention is to overcome the above-mentioned problems in the prior art, and to provide an anti-drowning life preserver with low cost, easy portability and high safety and stability in use.

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

An anti-drowning life-saving device, comprising a life-saving air bag, a shell, a gas source cylinder, a control valve seat, a firing pin, a water-soluble tablet, a hammer, a spring II and a water-passing shell, the two ends of the shell are provided with through holes, and one end is sleeved Life-saving airbag, the other end is sealed by the control valve seat;

A gas source cylinder is placed inside the casing, the casing 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 penetrating the hollow cavity, the control valve seat is sealedly connected with one end of the casing, and the inflation flow hole is exposed in the inner cavity of the casing ;

A striker is installed in the hollow cavity of the control valve seat. The striker and the striker are separated by water-soluble tablets. The striker is located in the water-passing shell, which is connected to the control valve seat. The striker and the water-passing shell jointly compress the spring II.

As the preferred technical solution:

An anti-drowning life preserver as described above, an anti-reverse flow restrictor valve is installed in the through hole at one end of the casing sleeved with the life-saving airbag, and the anti-reverse flow restrictor valve is mainly composed of an inflatable seat, a spring I and a small steel ball The inflatable seat is provided with an inflatable hole I, an inflatable hole II and an inflatable cavity through the inflatable hole I and the inflatable hole II, the spring I and the small steel ball are located in the inflatable cavity, one end of the inflatable hole I is connected with the inner cavity of the shell, the other 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 inflation hole II. The main function of the valve is to ensure that the carbon dioxide gas will not flow back due to the reverse air pressure difference between the airbag and the inflatable device after it flows into the airbag (or other forms of life-saving equipment). A shell, the conformal shell is connected with the shell through the shell snap.

In the above-mentioned anti-drowning life preserver, 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 radially extends with a protruding step, and the protruding step will The control valve seat is divided into two sections. One section of the hollow cavity has a smaller volume and passes through the inflation flow hole, and the other section of the hollow cavity has a larger volume. The number of the inflation flow holes is 2 to 8. The center of the inflation flow hole The line is perpendicular to the centerline of the hollow cavity.

In the above-mentioned anti-drowning life preserver, the air source steel cylinder is covered with a protective cover, the protective cover is a cylindrical body with an open end at one end and a ventilation hole at the other end, and the open 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 life preserver, the sealing connection refers to the connection between the inner wall of the casing and the outer wall of the control valve seat through threads, and the end face of the casing and the protruding step of the control valve seat are tightly fitted by a flat gasket. .

The above-mentioned anti-drowning life preserver, the water-soluble tablet is located between two hollow cavities 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 engaging block is a chamfered surface and is provided with a groove.

In the above-mentioned anti-drowning life preserver, the water-passing shell is connected with a section of thread of the control valve seat without an air-filled flow hole, and four water-passing holes are opened on the end face of the water-passing shell.

A kind of anti-drowning life preserver as described above, the outer cover of the water-passing shell is covered with a protective shell, and a cobalt chloride test paper is arranged between the water-passing 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 has been damaged by moisture in storage.

An anti-drowning life preserver as described above, the ram is a cylindrical structure, the middle part radially extends to form a protruding step, the spring II is sleeved on the ram, and the protruding step and the end face of the water-passing shell are co-extruded. Pressing, the end of the ram that is far away from the water-soluble tablet passes through the water-passing shell and the protective shell.

In the above-mentioned anti-drowning life preserver, one end of the ram passing through the protective shell is connected to a safety pin, and the safety pin can prevent the tablet from being damp and urge the ram and the striker to work, so as to prevent the life preserver from automatically starting and at the same time when the tablet fails. In this case, the safety pin can be pulled out, and the spring can directly push the striker to penetrate the gas source cylinder.

Beneficial effects:

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

(2) In the anti-drowning life preserver of the present invention, all the parts constituting the life preserver can be reused except for the high-pressure gas cylinder and the water-soluble tablet, and the use cost is low.

(3) An anti-drowning life preserver of the present invention is small in size, light in weight, and easy to carry.

(4) In an anti-drowning life preserver of the present invention, the top life-saving airbag is provided with a conformal casing, and the bottom protective casing is provided with a safety pin, which can effectively reduce the buoyant body breaking and accidental self-starting of the life preserver during transportation and use. possibility to improve the safety and stability of the life preserver.

Description of drawings

Fig. 1 is the structural representation of the anti-drowning life preserver of the present invention;

Fig. 2 is the structure schematic diagram of the anti-reverse flow restrictor 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 a casing buckle;

Figure 5 is a half-section schematic diagram of a protective cover;

6 is a schematic diagram of a cross-section of a protective cover;

Fig. 7 is a half-section schematic diagram of the control valve seat;

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

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

Figure 10 is a schematic front view of a striker;

Figure 11 is a schematic top view of the striker;

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

Figure 13 is a schematic top view of the water-passing shell;

Among them, 1-conformal shell, 2-life-saving airbag, 3-anti-reverse flow restrictor 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 supply cylinder, 8-control valve seat, 9-filling flow hole, 10-strike pin, 11-connection block, 12-water soluble Tablets, 13-rammer, 14-spring II, 15-protective shell, 16-safety plug, 17-cobalt chloride test paper, 18-water-passing shell.

Detailed ways

The present invention will be further described below in conjunction with specific embodiments. It should be understood that these examples are only used to illustrate the present invention and not to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by 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 life-saving device, as shown in Figure 1, includes a life-saving airbag 2, a housing 5, a gas source cylinder 7, a control valve seat 8, a striker 10, a water-soluble tablet 12, a striker 13, a spring II 14 and a water-passing shell 18 There are through holes at both ends of the casing 5, one end is sleeved with the life-saving airbag 2, the inner wall of the casing 5 at the other end is connected with the outer wall of the control valve seat 8 by threads, and the end face of the casing 5 is protruding from the control valve seat 8 The steps are tightly fitted by a flat gasket;

The anti-reverse flow restrictor valve 3 is installed in the through hole of one end of the shell 5 that is connected to the life-saving airbag 2. As shown in Figure 2, the anti-reverse flow restrictor valve is mainly composed of an inflatable seat 3.1, a spring I 3.6 and a small steel ball 3.4. The seat 3.1 is provided with an inflatable hole I 3.5, an inflatable hole II 3.2 and an inflatable cavity 3.3 passing through the inflatable hole I and the inflatable hole II. The spring I 3.6 and the small steel ball 3.4 are located in the inflatable cavity 3.3. One end is communicated with the inner cavity of the shell, 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, the outer cover of the life-saving airbag 2 has The conformal housing 1, the conformal housing 1 and the housing 5 are connected by the housing snap 4, and the schematic structural diagrams of the housing snap are shown in Figures 3 and 4;

A gas source cylinder 7 is placed inside the housing 5, and a protective cover 6 is sheathed outside the gas source cylinder 7. As shown in Figures 5 and 6, the protective cover 6 is a cylindrical body with an open end at one end and a ventilation 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 housing 5, and the gas outlet end of the gas source cylinder 7 is connected to the control valve seat 8;

As shown in FIG. 7 and FIG. 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 radially extends with a protruding step, and the protruding step connects the control valve seat 8 Divided into two sections, one section of hollow cavity has a smaller volume and passes through the inflation flow hole 9, the number of inflation flow holes 9 is 4, the center line of the inflation flow hole 9 is perpendicular to the center line of the hollow cavity, and the volume of the other section of the hollow cavity is Larger, the control valve seat 8 is sealingly coupled with one end of the casing 5 and exposes the inflation flow hole 9 in the inner cavity of the casing 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 to 11. The striker 10 is a cylindrical structure, the middle of the striker 10 extends radially, and the striker 10 and the striker 13 are separated by the water-soluble tablet 12. The ram 13 is located in the water-passing shell 18. The structure of the water-passing shell is shown in Figures 12 and 13. The water-passing shell 18 is connected to the control valve seat 8, and the ram 1 and the water-passing shell 18 jointly compress the spring II 14;

The water-soluble tablet 12 is located between two hollow cavities in the control valve seat 8, the striker 10 and the water-soluble tablet 12 are separated by a connecting block 11, and one end of the striker 10 away from the connecting block 11 is a chamfered surface and has a bevel;

The water-passing shell 18 is connected with the control valve seat 8 without a section of the air-filled flow hole 9. There are four water-passing holes on the end face of the water-passing shell 18. A cobalt chloride test paper 17 is provided between the shell 18 and the protective shell 15;

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

Example 2

An anti-drowning life-saving device, the basic structure is the same as that of the first embodiment, the difference is that there is no protective cover outside the gas source cylinder. 1's lifesavers are poor.

Example 3

An anti-drowning life-saving device, the basic structure is the same as that of the first embodiment, the difference is that there is no anti-reverse flow-limiting valve, the life-saving device can also effectively play a life-saving role, but it cannot prevent the gas from being inflated into the life-saving air bag and returning to the airflow path. .

Example 4

An anti-drowning life-saving device, the basic structure is the same as that of the first embodiment, the difference is that there is no shape-preserving shell, the life-saving device can also effectively play the role of life-saving, but it cannot reduce the breaking of the buoyant body and the accidental self-sustaining of the life-saving device during transportation and use. The possibility of opening, the safety and stability of use are relatively poor.

Claims (5)

1. an anti-drowning life preserver, it is characterized in that: comprise life-saving air bag, housing, gas source cylinder, control valve seat, striker, water-soluble tablet, striker, spring II and water-passing shell, the two ends of the shell are provided with Through hole, one end is sleeved with the life-saving airbag, and the other end is sealed by the control valve seat; An anti-reverse flow restrictor valve is installed in the through hole of one end of the shell that is sleeved with the life-saving airbag. The anti-reverse flow restrictor valve is mainly composed of an inflatable seat, a spring I and a small steel ball. Hole II and the inflatable cavity passing through the inflatable hole I and the inflatable hole II, the spring I and the small steel ball are located in the inflatable cavity, one end of the inflatable hole I is connected with the inner cavity of the shell, the other end is in contact with the small steel ball, and the small steel ball is in contact with the spring I One end of the spring I is in contact with the other end of the spring I is in contact with the inflation hole II; A gas source cylinder is placed inside the casing, the casing 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 air source steel cylinder is covered with a protective cover, the protective cover is a cylindrical body with an open end at one end and a ventilation hole at the other end, the open end of the protective cover is threadedly connected with the control valve seat, and the protective cover is not in contact with the housing; The control valve seat is a hollow column, and the control valve seat is provided with an inflation flow hole penetrating the hollow cavity, the control valve seat is sealedly connected with one end of the casing, and the inflation flow hole is exposed in the inner cavity of the casing ; A striker is installed in the hollow cavity of the control valve seat, the striker and the striker are separated by water-soluble tablets, the striker is located in the water-passing shell, the water-passing shell is connected with the control valve seat, and the striker and the water-passing shell jointly compress the spring II; 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 radially extends with a protruding step, and the protruding step divides the control valve seat into two sections, one section of a hollow cavity. The volume of the inflatable flow hole is small and passes through the inflation flow hole, and the volume of the other hollow cavity is larger, the number of the inflation flow hole is 2 to 8, and the center line of the inflation flow hole is perpendicular to the center line of the hollow cavity; The sealing connection means that the inner wall of the casing and the outer wall of the control valve seat are connected by threads, and the end face of the casing and the protruding step of the control valve seat are tightly fitted by a flat gasket; The water-passing shell and the control valve seat are threadedly connected with a section of the air-filled flow hole, and four water-passing holes are opened on the end face of the water-passing shell; The outside of the water-passing shell is covered with a protective shell, and a cobalt chloride test paper is arranged between the water-passing shell and the protective shell. 2 . The anti-drowning life preserver according to claim 1 , wherein a conformal shell is sleeved on the outside of the life-saving airbag, and the conformal shell and the shell are connected by the shell through the shell. 3 . 3. An anti-drowning life preserver according to claim 1, wherein the water-soluble tablet is located between two hollow cavities in the control valve seat, the striker and the water-soluble tablet are separated by a connecting block, and the striker is It is a cylindrical structure, the middle of the striker extends radially, and the end of the striker away from the connecting block is a chamfered surface and has a bevel. 4. An anti-drowning life preserver according to claim 1, characterized in that, the ram is a cylindrical structure, the middle part radially extends to form a protruding step, and the spring II is sleeved on the ram, and is formed by the protruding step. The step and the end face of the water-passing shell are co-extruded, and the end of the ram, which is far away from the water-soluble tablet, protrudes from the water-passing shell and the protective shell. 5 . The anti-drowning life preserver according to claim 4 , wherein one end of the ram passing through the protective shell is connected to a safety bolt. 6 .

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