CN118358727A

CN118358727A - Gas circuit system of single diving breathing equipment

Info

Publication number: CN118358727A
Application number: CN202410541856.3A
Authority: CN
Inventors: 陈海棠
Original assignee: Guangdong Zhaofang Technology Co ltd
Current assignee: Guangdong Zhaofang Technology Co ltd
Priority date: 2024-04-30
Filing date: 2024-04-30
Publication date: 2024-07-19

Abstract

The application discloses an air circuit system of single diving breathing equipment. Wherein, only one end of each of the inspiration buffer bag and the expiration buffer bag is connected into the circulating gas path. The three-way valve for air suction: one end of the circulating air channel is assembled at the opening of the air suction buffer bag, and the other two ends of the circulating air channel are communicated with the circulating air channel and are provided with a first manual air supplementing port and an automatic air supplementing port. The three-way valve for expiration is assembled at the opening of the inspiration buffer bag through one end, and the remaining two ends are communicated with a circulating gas circuit and are provided with a second manual air supplementing port. The air circuit system can supplement air for the circulating air circuit through the first manual air supplementing valve, the second manual air supplementing valve and the automatic air supplementing mechanism, and has the advantages of compact structure and convenience in use.

Description

Gas circuit system of single diving breathing equipment

Technical Field

The application belongs to the field of scuba, and particularly relates to an air circuit system of single-person diving breathing equipment.

Background

In the closed and semi-closed single diving equipment, the gas of a breathing cycle gas circuit is purified by a gas purifier, inhaled by a diver through an inhalation buffer bag and a breathing mouth valve (also called a mouthpiece valve), and the exhaled gas of the diver is completely or partially returned to the gas purifier through the breathing mouth valve and the exhalation buffer bag; the high-pressure gas cylinder of the air supplementing gas circuit supplements oxygen and nitrogen to the respiratory cycle gas circuit through two-stage decompression and also charges the buoyancy regulating air bag; the buoyancy regulating air bag is used for regulating the underwater buoyancy.

The existing diving equipment can automatically supplement the air and manually supplement the air. The location of manual air make-up is typically at the air inlet of the mouthpiece valve. The automatic air supplementing mechanism is divided into a mechanical type and an electronic type. The automatic air supplementing position is usually arranged inside the air outlet of the shell of the air purifier.

Disclosure of Invention

The application aims to solve the technical problem of improving the gas circuit system of single diving breathing equipment and improving the safety and applicability of the single diving breathing equipment.

The application discloses an air circuit system of single diving breathing equipment. The gas circuit system comprises:

The circulating gas circuit comprises a gas purifier, an inhalation buffer bag, a mouthpiece valve and an exhalation buffer bag which are communicated with each other through a circulating pipeline in an hour hand order, and the inhalation buffer bag and the exhalation buffer bag are provided with an opening at the same direction;

one or two high-pressure gas cylinders for supplementing gas to the circulating gas circuit through a gas supplementing pipe;

A buoyancy adjusting air bag communicated with the high-pressure air bottle for adjusting buoyancy under water;

One air suction three-way valve is assembled on the opening of the air suction buffer bag through one end, and the remaining two ends are communicated with a circulating air passage and provided with a first manual air supplementing port and an automatic air supplementing port;

One end of the expiration three-way valve is assembled on the opening of the expiration buffer bag, and the remaining two ends are communicated with a circulating gas circuit and provided with a second manual gas supplementing port;

the first manual air supplementing valve is connected in series with the air supplementing pipe between the first manual air supplementing port and the high-pressure air cylinder;

the second manual air compensating valve is connected in series with the air compensating pipe between the second manual air compensating port and the high-pressure air cylinder; and

The automatic air supplementing mechanism comprises an automatic air supplementing valve assembled at the automatic air supplementing port, and the automatic air supplementing valve is communicated with the high-pressure air bottle through the air supplementing pipe.

In some embodiments of the present application, the automatic air compensating valve is an electromagnetic valve, and the automatic air compensating mechanism further includes a plurality of oxygen sensors and a wrist instrument, where the oxygen sensors are disposed in the circulation air path;

the wrist instrument: the preassembled air supplementing program module is electrically connected with the oxygen sensor and the electromagnetic valve respectively.

In some embodiments of the application, the first manual air compensating valve and the second manual air compensating valve may be selected: one of the two is provided with a spare interface for connecting an external air supply.

In some embodiments of the application may be selected,

The expiration buffer bag: when being worn, the utility model is in a vertical strip shape, the top end is provided with the three-way valve for expiration, and the bottom end is provided with a water drain valve;

the exhalation three-way valve: a baffle plate is arranged inside the air bag to enable the exhaled air to flow: folded into the expiration buffer bag, and water is separated out from the expiration buffer bag.

In some embodiments of the application, the gas circuit system comprises:

A high-pressure dilution air bottle communicated with the first manual air supplementing valve, the automatic air supplementing valve and the buoyancy regulating air bag; and

And a high-pressure oxygen bottle communicated with the second manual air supplementing valve.

In some embodiments of the application, the buoyancy adjusting bladder may be selected from: is configured in a ring shape, is attached to the human body when worn, and extends beyond other parts on the left and right sides.

In some embodiments of the application may be selected,

The valve body of the air suction three-way valve is provided with an opening;

The automatic air compensating valve comprises: is a normally closed mechanical valve and comprises a valve core column reset by a spring;

The automatic air supplementing mechanism further comprises:

an actuating piece embedded on and closing the opening of the three-way valve for inhalation, and can act under the action of negative pressure of inhalation of divers; and

And the transmission piece is connected between the actuating piece and the valve core column and is used for pushing and pulling the valve core column under the driving of the actuating piece.

Further, the actuating piece is configured as a bowl-shaped plastic membrane with concave negative pressure.

By implementing the technical scheme of the application, the following beneficial effects can be obtained:

Drawings

The following drawings are intended to be used in connection with the detailed description.

Fig. 1 is a schematic diagram of an air path system in the first embodiment.

Fig. 2a is a schematic perspective view of an assembly of main components of the gas circuit system in the first embodiment.

Fig. 2b is an exploded schematic view of the assembly shown in fig. 2 a.

Fig. 3 is a schematic perspective view of an exhalation three-way valve in the first embodiment.

Fig. 4 is a schematic perspective view of a second manual air compensating valve according to the first embodiment.

Fig. 5a is a schematic perspective view of an assembly of an air suction three-way valve and a mechanical automatic air supply mechanism in the second embodiment.

Fig. 5b is an exploded view of the assembly of fig. 5 a.

Fig. 6 is an exploded view of a mechanical automatic air supply mechanism in the second embodiment.

Detailed Description

In order to facilitate an understanding of the present application, embodiments are described below with reference to the accompanying drawings.

In the present specification, unless specifically stated otherwise: "one embodiment," "some embodiments," and "others" are used to distinguish between different embodiments and do not necessarily refer to all embodiments; the figures are schematic, not to scale; directions/positions indicated by top, bottom, center, edge, inner, outer, far, near, long, wide, longitudinal, transverse, up, down, etc., cannot be understood as being in a specific position, toward a specific direction, based on the viewing angle of the drawing; the first, second, third, etc. sequence words are used to distinguish between components/means of identical function/name that do not necessarily have a sequential meaning.

In the present specification, the diluent gas refers to an oxygen-nitrogen mixture gas that simulates air.

Example 1

An air path system for single-person diving equipment is disclosed.

Referring to fig. 1, the air circuit system includes a circulation air circuit 100, an air supply air circuit, an electronic automatic air supply mechanism 600, and a buoyancy adjusting air bag 710.

The buoyancy adjusting bladder 710 is used to adjust buoyancy under water, communicates with the high pressure dilution gas cylinder 210 through the gas supplementing pipe 201, and controls inflation and deflation through a manual valve. Specifically, the buoyancy adjustment system of the single-person diving equipment further comprises a disposable balancing weight.

Referring to fig. 2a and 2b, the buoyancy adjusting airbag 710 is configured in a ring shape, and is attached to the back of a human body when worn with the left and right sides beyond other parts.

The circulation path 100 includes a gas purifier 110, an inhalation buffer bag 120, a mouthpiece valve 130 and an exhalation buffer bag 140, which are communicated with each other through a plurality of circulation pipes 101 in an clockwise order, and further includes an inhalation three-way valve 310 and an exhalation three-way valve 320.

Referring to fig. 2a and 2b, inhalation buffer bag 120 and exhalation buffer bag 140: are long-strip-shaped and are in an upright state when worn. The suction buffer bag 120 has an opening 120a at its upper end and a drain valve 141 at its lower end. The suction buffer bag 140 has an opening 140a at its upper end and a drain valve at its lower end.

Referring to fig. 5a, the suction three-way valve 310 has a lower end 313 fitted into the opening 120a of the suction buffer bag 120, and an inlet end 311 and an outlet end 312 respectively connected to a circulation pipe 101. The three-way valve 310 is also provided with a first manual air supply 314 and an automatic air supply.

Note that if only the electronic automatic air make-up mechanism 600 is employed, the top opening 315 of the air-intake three-way valve 310 may be eliminated.

Referring to fig. 1, the automatic air supply port is provided with a solenoid valve 630. The solenoid valve 630 serves as an automatic air supply valve, and communicates with the high-pressure dilution air cylinder 210 through the air supply pipe 201.

Referring to fig. 3, the three-way exhalation valve 320 has a lower end 313 fitted into the opening 140a of the exhalation buffer bag 140, and an inlet end 321 and an outlet end 322 respectively connected to a circulation pipeline 101. The exhalation three-way valve 320 is also provided with a second manual air supply port (not shown in the drawings).

Inside the exhalation three-way valve 320 is a baffle 324 to allow the diver to exhale: folded into the breath buffer bag 140, and water is deposited in the breath buffer bag 140. The moisture may be discharged under internal air pressure by opening the drain valve 141.

The air supply air circuit of this air circuit system includes: a plurality of air supply pipes 201, a high-pressure dilution air cylinder 210, a high-pressure oxygen cylinder 220, a first manual air supply valve 214, a second manual air supply valve 224 and an electronic automatic air supply mechanism 600.

The electronic automatic air supply mechanism 600 includes the above-described solenoid valve 630, and further includes three oxygen sensors 620, a wrist-worn meter 610, and a cable 601.

Three oxygen sensors 620 are provided inside the housing outlet of the gas purifier 110.

Wrist Dai Yibiao 610: the pre-installed make-up program module is electrically connected to the oxygen sensor 620 via the cable 601. A portion of the electrical wire of the cable 601 extends along the circulation pipe 101 to connect the solenoid valve 630.

Wrist Dai Yibiao 610, also known as a computer watch, also houses other diving applications for timing, positioning, emergency calling, communication, health monitoring, etc.

The first manual air make-up valve 214 is connected in series with the air make-up line between the first manual air make-up port and the high pressure dilution air cylinder 210. The second manual air compensating valve 224 is connected in series with the air compensating pipe between the second manual air compensating port and the high-pressure dilution air cylinder 210.

The high-pressure dilution gas cylinder 210 is respectively communicated with the buoyancy regulating air bag 710, the first manual air compensating valve 214 and the electromagnetic valve 630 through a plurality of air compensating pipes 201 by a first pressure reducing valve 211 and a second pressure reducing valve 212.

The high-pressure oxygen bottle 220 is communicated with a second manual air supplementing valve 224 through an air supplementing pipe 201 by a first-stage pressure reducing valve 221 and a second-stage pressure reducing valve 222.

The outlet of the high-pressure dilution gas cylinder 210 is directly communicated with the high-pressure gauge 213. The outlet of the high-pressure oxygen bottle 220 is directly communicated with the high-pressure gauge 223.

The first manual air make-up valve 214, the second manual air make-up valve 224, and the two high pressure gauges 213, 223 may be fixed to the chest or forearm of the diver.

The first and second manual air make-up valves 214, 224 are substantially identical in structure.

Referring to fig. 4, the second manual air compensating valve 224 is in a flat block shape, and is provided around the side edge: a) An air inlet 2241 and an air outlet 2242; b) Valve stem button 2243 to control the on-off of the internal gas path; c) A hanger 2246 for securing to the chest or forearm of a diver, d) a back-up interface 2244 for switching on an external air supply; e) The flux adjusting pins 2245 adjust the magnitude of the make-up air flow.

Referring again to fig. 2a and 2b, the air path system is for a backpack diving apparatus, with the primary components mounted on a back plate 810 and mounting bracket 820.

Backboard 810: the shape is suitable for the shoulder and back of a human body, four corners are in a curve excessive angle grinding structure, a plurality of binding band holes 811 are formed, the breadth of the binding band holes is trapezoid, and a V-shaped bending is formed at the central longitudinal axis of the binding band holes.

Buoyancy regulating bladder 710 is bonded around back plate 810. In front of the back plate 810, flexible cushion pads, left shoulder straps, right shoulder straps, bellyband and bottom (crotch) straps are also installed.

Inhalation buffer bag 120 and exhalation buffer bag 140: is an elastic plastic bag sleeved with woven cloth, and the elastic plastic bag and the woven cloth are connected into a whole through a piece of woven cloth and are bound behind the backboard 810.

The mounting bracket 820 is cross-shaped with an intermediate post 822 therebetween: a binding belt is penetrated to install the gas purifier 110, a lifting handle 823 is arranged at the top end of the binding belt, and the binding belt is installed in the middle of the back plate 810 and behind the two buffer bags through a bolt pair. Two arms 821 of the mounting frame 820 in the left-right direction are used to restrain two buffer bags and stabilize the gas purifier 110.

Two snap-fit female seats are bound to the sides of the gas purifier 110.

The high-pressure dilution gas cylinder 210 and the high-pressure oxygen cylinder 220 are respectively bound with a clamping sub-seat.

One of the snap-fit female seats and one of the snap-fit male seats may be snapped together to form a pair of snap-fit seats 202, such that two high pressure gas cylinders are mounted on the left and right sides of the gas purifier 110.

The air circuit system is used for single diving breathing equipment and has the following technical advantages.

(1) The tonifying qi mode is more. In addition to automatically replenishing and manually replenishing diluent gas to the three-way valve 310, oxygen may also be manually replenished to the three-way valve 320.

(2) Convenient to use. Two manual air supply ports and an automatic air supply port are arranged on the three-way valve of the buffer bag, so that the buffer bag is convenient to overhaul. The two manual air compensating valves are independently arranged, can be flexibly worn, and also simplifies the structure of the mouthpiece valve 130.

(3) The structure is compact. The annular buoyancy regulating air bag 710 is adopted, so that the space in the central part of the equipment is not occupied. The two buffer bags are connected into the circulating gas circuit 100 at the top end through the three-way valve, so that the air flow buffer effect is not affected, and unnecessary air flow paths are reduced.

In another approximate implementation, three oxygen sensors 620 are mounted inside the inspiration three-way valve 310, with sensor cables leading from the wire conduit 316. With this configuration, the oxygen monitoring position is close to the mouthpiece valve 130, and the detection data more matches the actual condition of the diver inhaling air.

Example two

An air path system for single-person diving equipment is disclosed.

The gas circuit system is modified as follows based on the first embodiment.

The electronic automatic air supply mechanism 600 is canceled, and the mechanical automatic air supply mechanism 400 is adopted.

Referring to fig. 5a and 5b, a top opening 315 is formed at the top of the valve body of the three-way air-suction valve 310, and a hollow top cover 318 is covered on the top opening 315.

Referring to fig. 5b and 6, the mechanical automatic air make-up mechanism 400 includes a normally closed mechanical valve 430, an actuator 410 and a transmission 420.

The mechanical valve 430 includes a spring return spool 431.

The mechanical valve 430 is mounted on the automatic air supply port of the air suction three-way valve, and an annular cap 432 is arranged on the outer edge of the air outlet on the inner side of the mechanical valve. The free end of the spool 431 extends beyond the inboard air outlet port and is surrounded by an annular cap 432. The annular cap 432 is provided with a radial slot 432a.

The transmission member 420 is a T-shaped sheet metal sheet, and a notch 421a is formed at the top edge of the head 421, and the tail end of the transmission member is bent into an arch shape and abuts against the actuating member 410. Head 421 of transmission 420: the notch 421a is clamped on the valve core column 431, so that the radial slot 432a is embedded, and the nut 401 is used for limiting.

The actuating member 410, configured as a bowl-shaped plastic film, is embedded on the top opening 315 and closes the top opening 315, and is protected by the hollow top cover 318.

The actuator 410 may be concave in center under the suction negative pressure of the diver.

The concave actuator 410 depresses the head of the driver 420, driving the tail 421 of the driver 420 in rotation. The tail 421 of the driver 420, when changed from the upright state to the inclined state, pulls the spool 431 outwardly, thereby opening the mechanical valve 430.

The air circuit system is used for single diving breathing equipment, and the mechanical automatic air supplementing mechanism is free from electromagnetic interference and suitable for engineering construction of complex underwater environments.

In another similar embodiment, the exhalation three-way valve 320 is provided with an automatic air supply and solenoid valve 630, and the inhalation three-way valve 310 internally houses three oxygen sensors 620, the sensor cables leading from the electrical conduit 316. Namely: the air circuit system is simultaneously provided with a mechanical automatic air supplementing mechanism 400 and an electronic automatic air supplementing mechanism 600, and one of the mechanical automatic air supplementing mechanism and the electronic automatic air supplementing mechanism can be selected.

All the examples, examples of application and technical analyses presented above are intended to introduce the features of the technical solution of the present application, so that those skilled in the art will understand and implement the technical solution of the present application, but do not constitute any limitation on the scope of protection of the present application. Simple modifications or equivalent variations of the above embodiments are within the scope of the application.

Claims

1. A gas circuit system for a single person diving breathing apparatus, comprising:

A circulating air path (100) comprising a gas purifier, an inhalation buffer bag, a mouthpiece valve and an exhalation buffer bag which are communicated with each other through a circulating pipeline (101) in an clockwise order, wherein the inhalation buffer bag and the exhalation buffer bag are respectively provided with an opening at one end in the same direction;

one or two high-pressure gas cylinders are used for supplementing gas for the circulating gas circuit through a gas supplementing pipe (201);

An air suction three-way valve (310) with one end assembled on the opening of the air suction buffer bag and the other two ends connected with a circulating air path and provided with a first manual air-supplementing port and an automatic air-supplementing port;

An expiration three-way valve (320) with one end assembled on the opening of the expiration buffer bag and the other two ends connected with the circulation gas path and provided with a second manual gas-filling port;

the first manual air supplementing valve (214) is connected in series with the air supplementing pipe between the first manual air supplementing port and the high-pressure air cylinder;

the second manual air compensating valve (224) is connected in series with the air compensating pipe between the second manual air compensating port and the high-pressure air cylinder; and

2. A gas circuit system according to claim 1 wherein,

The automatic air supplementing valve is an electromagnetic valve (630), the automatic air supplementing mechanism further comprises a plurality of oxygen sensors (620) and a wrist instrument (610), and the oxygen sensors are arranged in the circulating air circuit;

3. A gas circuit system according to claim 2 wherein,

The oxygen sensor: three are arranged in the air outlet end of the air purifier or in the air suction three-way valve.

4. A gas circuit system according to claim 1 wherein,

The first manual air compensating valve and the second manual air compensating valve: one of the two is provided with a spare interface for connecting an external air supply.

5. A gas circuit system according to claim 1 wherein,

6. The gas circuit system according to claim 1, comprising:

7. A gas circuit system according to claim 1 wherein,

The buoyancy regulating airbag: is configured in a ring shape, is attached to the human body when worn, and extends beyond other parts on the left and right sides.

8. A gas circuit system according to claim 1 wherein,

The valve body of the air suction three-way valve is provided with an opening;

The automatic air supplementing mechanism further comprises:

9. The air circuit system of claim 8, wherein the actuator is configured as a negative pressure concave bowl-shaped plastic diaphragm.