CN103629391A

CN103629391A - Automatic medical gas switching over busbar device and gas switching over device

Info

Publication number: CN103629391A
Application number: CN201310620978.3A
Authority: CN
Inventors: 黄炳安; 华宇
Original assignee: SICHUAN GANGTONG MEDICAL EQUIPMENT GROUP CO Ltd
Current assignee: SICHUAN GANGTONG MEDICAL EQUIPMENT GROUP CO Ltd
Priority date: 2013-11-29
Filing date: 2013-11-29
Publication date: 2014-03-12
Anticipated expiration: 2033-11-29
Also published as: CN103629391B

Abstract

The invention relates to medical gas cylinder centralized supplying devices, in particular to an automatic medical gas switching over busbar device and a gas switching over device. To solve the technical problems in the prior art, the automatic medical gas switching over busbar device and the gas switching over device which are novel in structure, convenient to use and reliable are provided. The technical problems in the prior art are solved due to the designed automatic medical gas switching over busbar device. A medical gas cylinder of a left loop gas inlet assembly and a medical gas cylinder of a right loop gas inlet assembly can be automatically switched over to be used through the automatic gas switching over device. Various medical gases are provided for all medical gas using places through gas supplying loops.

Description

A kind of automatic switchover medical gas cylinder manifold device and gas COMM communication

Technical field

The present invention relates to medical gas steel cylinder centralizedly supply device, especially a kind of automatic switchover medical gas cylinder manifold device and gas COMM communication.

Background technique

The medical gas cylinder manifold device using at present, its structure is all substantially identical, all to adopt double loop supply medical gas, when being finished, the medical gas in a loop need be switched to another loop for seasonable, substantially all adopt the switching mode of artificial or solenoid valve, adopt manual switching to be not easy to management, adopt solenoid valve to switch, if meet the cisco unity malfunction that has a power failure.

Summary of the invention

Technical problem to be solved by this invention is: the problem existing for prior art, a kind of novel structure is provided, easy to use and reliable automatic switchover medical gas cylinder manifold device and gas COMM communication, first solved prior art problem, designed a kind of automatic switchover medical gas cylinder manifold device, it is by gas COMM communication, the supply of mutually automatically switching of the gas of having realized the medical gas steel cylinder of left loop air intake assembly, right loop air intake assembly medical gas steel cylinder, and by gas supply loop assembly, supply the supply that realizes gas of safe and simple.Secondly, a kind of gas COMM communication is provided, by being used in conjunction with of core body and the first steel ball, realized the automatic switchover of left and right loop air intake assembly medical gas steel cylinder air feed, so periodic duty, left loop air intake assembly medical gas steel cylinder and right loop air intake assembly medical gas steel cylinder are used alternatingly.Further, by the switching signal transmission assembly in gas COMM communication, can be in external electronic equipment, show the work at present state of medical gas steel cylinder, for replacing and the follow-up service work of gas cylinder provides more convenience.

the technical solution used in the present invention is as follows:

A kind of gas COMM communication comprises: left fittings body 1, the first seal ring 2, core body 3, gas outlet joint 4, right connector body 5, pressure equalization module, described left fittings body 1 forms left and right two-way suction port with right connector body 5, and by three end opening gas COMM communication of gas outlet joint 4 output gases; Described gas outlet joint 4 is positioned at gas COMM communication circumferential surface neutral position; Described pressure equalization module is positioned on the circumferential surface of gas COMM communication, and described gas outlet joint 4, pressure equalization module are corresponding to be respectively threaded with left fittings body 1, and described right connector body 5 is connected with left fittings body 1 screw thread or bolt; Core body 3 contacts with pressure equalization module point; Core body 3 is to comprise that two ends, left and right arrange respectively the cylindrical body of symmetrical column sealed step; The length of column sealed step is A1, the displacement distance of column sealed step is A, be, on A > A1. core body 3 cylindrical body circumferential surfacies, identical left end arc groove C and right-hand member arc groove D are set, the center of described core body 3 left end arc groove C and core body 3 right-hand member arc groove D Central Symmetries are in the length direction center line of core body 3, and core body 3 moves left and right distance A and is less than core body 3 left end arc groove C and right-hand member arc groove D centre distance B; Core body 3 is when fittings body 1 or right connector body 5 directions move left, pressure equalization module respectively correspondence moves to core body 3 right-hand member arc groove D or core body 3 cone surfaces, left end arc groove C place, the left column sealed step of described core body 3, the right column sealed step of core body 3 move to respectively in the corresponding endoporus of left fittings body 1, right connector body 5, by the column sealed step in a left side, set the first seal ring 2 sealings of right column sealed step; On the left column sealed step of described core body 3, the right column sealed step of core body 3, annular groove is set respectively, the first seal ring 2 is set in annular groove; The junction plane place of gas outlet joint 4, right connector body 5, pressure equalization module and left fittings body 1 arranges at least one groove, shown in the first seal ring 2 is set in groove; It is P that described pressure equalization module acts on the pressure on core body 3 surfaces, the axial thrust load of P is P1, radial component is P2, the end thrust that core body 3 You Zuo loop, left side supply gas pressures produce is B1, the end thrust that core body 3 You You loop, right side supply gas pressures produce is B2, as B1 > P1+B2, core body 3 moves right and forms left loop gas passage, and left fittings body 1 is connected with gas outlet joint 4; As B2 > P1+B1, core body 3 is moved to the left and forms right loop gas passage, and right connector body 5 is connected with gas outlet joint 4; The gas output outlet that described gas outlet joint 4 is COMM communication, is connected with the pipeline of automatic switching cylinder manifold device by pipe fitting.

Described pressure equalization module comprises at least three pressurizers, described pressurizer comprises the first steel ball 6, the first spring 7, spring fixed seat 8, spring fixed seat 8 is threaded with left fittings body 1, on spring fixed seat 8, be provided with circular hole, the first spring 7 is set in spring fixed seat 8 circular holes, described the first steel ball 6 is between the first spring 7 and core body 3, and core body 3 contacts with 6 of the first steel balls; The pressure that described the first steel ball 6 acts on core body 3 surfaces is P, the axial thrust load of P is P1, the radial component of P is P2, the end thrust that core body 3 You Zuo loop, left side supply gas pressures produce is B1, the end thrust that core body 3 You You loop, right side supply gas pressures produce is B2, as B1 > P1+B2, core body 3 moves right and forms left loop gas passage, and left fittings body 1 is connected with gas outlet joint 4; As B2 > P1+B1, core body 3 is moved to the left and forms right loop gas passage, and right connector body 5 is connected with gas outlet joint 4; Described pressurizer assembly has on the many groups of external cylindrical surfaces that are uniformly distributed in gas COMM communication, for moving to the left or to the right, balance core body 3 forms the power of right loop gas passage or left loop gas passage, until default left air circuit, the right air feed loop switch pressure of supplying.

A kind of gas COMM communication also comprises switching signal transmission assembly 9, described switching signal transmission assembly 9 comprises the second steel ball 11, valve seat 12, the second seal ring 13, the second spring 14, spool 15, fixed base 16, sensitive switch 17, described sensitive switch 17 is push buttons, on described left fittings body 1 circumference, be provided with the mounting hole that switching signal transmission assembly is installed, described the second steel ball 11, valve seat 12, the second seal ring 13 is positioned over successively on left fittings body 1 and installs in the mounting hole of switching signal transmission assembly, described fixed base 16 one end are threaded with left fittings body 1, fixed base 16 the other ends are by fixing sensitive switch 17 shells of internal thread, sensitive switch 17 action reeds contact with spool 15 tops, spool 15 is arranged in the endoporus of fixed base 16, spool 15 lower ends contact with 11 of the second steel balls through the second seal ring 13, spool 15 upper ends contact with sensitive switch 17, the second seal ring 13 is set between valve seat 12 and spool 15, on spool 15, be provided with the step that the second spring 14 is installed, fixed base 16 endoporus are provided with the step hole of placing the second spring 14, between spool 15 and fixed base 16, be provided with the second spring 14, when core body 13 fittings body 5 direction motion to the right, the second steel ball 11 moves to core body 3 left end arc groove C top left side, be on the maximum diameter cylndrical surface of core body 3, the second steel ball 11 promotes spool 15 motions, make sensitive switch 17 action reed motions, sensitive switch 17 movable contacts contact with sensitive switch 17 fixed contacts, produce electrical signal, export to detection facility, when core body 13 fittings body direction motion left, the second steel ball 11 moves in core body 3 left end arc groove C, and the second spring 14 makes spool 15 to the motion of steel ball direction, and sensitive switch 17 does not produce electrical signal.

In described core body 3, arc groove is two cone buses and bottom circular arc and the tangent formation of top arc, and left end arc groove C bottom circular arc and right-hand member arc groove D bottom radius of arc are greater than steel ball radius.

A kind of automatic switchover medical gas cylinder manifold device also comprises left loop air intake assembly, right loop air intake assembly, gas output precision, gas safety discharge loop assembly, left loop air intake assembly, right loop air intake assembly, gas output precision correspondence and the left fittings body 1 of gas COMM communication 27, gas COMM communication 27 right connector bodies 5, gas COMM communication 27 gas outlet joints 4 are threaded, when gas COMM communication 27 core bodys 3 are when fittings body 5 directions move to the right, form left loop gas supply loop, gas in left side medical gas steel cylinder 21 is exported by gas output precision, when gas COMM communication 27 core bodys 3 are after fittings body direction moves left, form right loop gas supply loop, the gas in the right medical gas steel cylinder 21 is exported by gas output precision.

Described left loop air intake assembly, right loop air intake assembly comprise respectively: medical gas steel cylinder 21, safety check 22, stop valve 23, one-level decompressor 24, medical gas steel cylinder 21, safety check 22, stop valve 23, one-level decompressor 24 one end connect successively by gas pipeline, and one-level decompressor 24 the other ends of one-level decompressor 24 the other ends of left loop air intake assembly, right loop air intake assembly are corresponding to be respectively threaded with the left fittings body 1 of gas COMM communication 27, gas COMM communication 27 right connector bodies 5.

Described gas output precision comprises at least 1 road gas output loop assembly, described gas output loop assembly comprises the first ball valve 28, second depressurized device 29, the second ball valve 30, and described gas COMM communication 27 gas outlet joints, the first ball valve 28, second depressurized device 29, the second ball valve 30 connect successively by gas pipeline.

Described gas output precision comprises two-way gas output loop assembly, and described gas COMM communication 27 gas outlet joints are connected with the first ball valve 28 of two-way gas output loop assembly.

Described gas safety discharge loop assembly comprises the first safety valve 33, gas discharge pipe 35, and described first safety valve 33 one end are connected with gas COMM communication gas outlet joint 4, and first safety valve 33 the other ends are connected with gas discharge pipe 35 concurrents.

Described gas output precision also comprises the 3rd ball valve 32, the 3rd pressure gauge 31, described left loop air intake assembly, right loop air intake assembly also comprises respectively the first pressure gauge 25, the second pressure gauge 26, gas safety discharge loop assembly also comprises the second safety valve 34, described the second ball valve 30 respectively with second depressurized device 29, the 3rd ball valve 32 connects, described the first pressure gauge 25 is arranged between stop valve 23 and one-level decompressor 24, the second pressure gauge is arranged between one-level decompressor 24 and gas COMM communication 27, the 3rd pressure gauge 31 is arranged between the second ball valve 30 and the 3rd ball valve 32, described second safety valve 34 one end are arranged at the second ball valve 30, between the 3rd ball valve 32, described second safety valve 34 the other ends are connected with gas discharge pipe 35.

in sum, owing to having adopted technique scheme, the invention has the beneficial effects as follows:

1) automatic switchover medical gas cylinder manifold device, by gas COMM communication, the gas of having realized the medical gas steel cylinder of left loop air intake assembly, right loop air intake assembly medical gas steel cylinder automatically switches, and by gas supply loop assembly, supply the supply that realizes gas of safe and simple.

2) the left loop air intake assembly in automatic switchover medical gas cylinder manifold device and right loop air intake assembly are respectively by pressure and the flow of medical gas in safety check, stop valve, one-level decompressor control loop.

3) automatic switchover medical gas cylinder manifold device arranges gas safety discharge loop assembly, and for installing the pressure release by the unlatching of gas safety valve of too high pressure, the pressure in assurance device is in setting range.

)automatic switchover medical gas cylinder manifold device can be monitored monitory point current state force value at any time by a plurality of pressure gauges are set, and guarantees the safe handling of automatic switchover medical gas cylinder manifold device.

)automatic switchover medical gas cylinder manifold device, by a plurality of seal rings are set, guarantees that in using process, the gas in medical gas loop does not leak, and guarantees that this installs normal trouble free service.

)gas COMM communication, by being used in conjunction with of core body and the first steel ball, realized the automatic switchover of left and right loop air intake assembly medical gas steel cylinder air feed, so periodic duty, after gas in the air intake assembly medical gas steel cylinder of left loop is finished, close stop valve and change gas cylinder, now by right loop air intake assembly, provide sufficient gas; After in like manner the gas in the air intake assembly medical gas steel cylinder of right loop is finished, closes stop valve and change gas cylinder, now by left loop air intake assembly, provide sufficient gas.

)gas COMM communication, by the switching signal transmission assembly in gas COMM communication, can show the work at present state of left and right medical gas steel cylinder in external electronic equipment, for replacing and the follow-up service work of gas cylinder provides more convenience.

)this medical gas cylinder manifold device before one-level decompressor decompression on pipeline with post-decompression pipeline on, on the post-decompression pipeline of second depressurized device, be provided with pressure gauge, to show pipeline gas pressure.

)this medical gas cylinder manifold device is provided with pressure relay on pipeline with on the post-decompression pipeline of second depressurized device after the decompression of one-level decompressor, is connected in external electronic equipment, to the overpressure in loop or too low superpressure or the undervoltage warning of carrying out.

Accompanying drawing explanation

Examples of the present invention will be described by way of reference to the accompanying drawings, wherein:

Fig. 1 gas COMM communication plan view.

Fig. 2 be Fig. 1 along F to schematic diagram.

Fig. 3 (a) is that Fig. 2 is along A-A rotation hatching schematic diagram (working position of left loop air feed core body).

Fig. 3 (b) is that the pressure that gas COMM communication the first steel ball 6 acts on core body 3 surfaces is the left loop of P(air feed core body) pressure exploded view.

Fig. 4 (a) is that Fig. 2 is along A-A rotation hatching schematic diagram (working position of right loop air feed core body).

Fig. 4 (b) is that the pressure that gas COMM communication the first steel ball 6 acts on core body 3 surfaces is the right loop of P(air feed core body) pressure exploded view.

Fig. 5 is that Fig. 1 is along B-B hatching schematic diagram.

Fig. 6 is that Fig. 2 is along C-C hatching schematic diagram.

Fig. 7 is automatic switchover medical gas backflow arranging device schematic diagram.

Reference character

Left fittings body 2-the first seal ring 3-core body 4-gas outlet joint of 1-

5-right connector body 6-first steel ball 7-the first spring 8-spring fixed seat

9-switching signal transmission assembly 11 second steel ball 12-valve seat 13-the second seal rings

14-the second spring 15-spool 16-fixed base 17 sensitive switches

21-medical gas steel cylinder 22-safety check 23-stop valve 24 one-level decompressors

25-first pressure gauge 26-second pressure gauge 27-gas COMM communication 28-the first ball valve

29-second depressurized device 30-the second ball valve 31-the 3rd pressure gauge 32-the 3rd ball valve

33-first safety valve 34-the second safety valve 34 35-gas discharge pipes.

Embodiment

Disclosed all features in this specification, or the step in disclosed all methods or process, except mutually exclusive feature and/or step, all can combine by any way.

Disclosed arbitrary feature in this specification (comprising any accessory claim, summary and accompanying drawing), unless narration especially all can be replaced by other equivalences or the alternative features with similar object.That is,, unless narration especially, each feature is an example in a series of equivalences or similar characteristics.

One, gas COMM communication:

1, form:

As Fig. 1,3(a), 4(a) as shown in, comprise left fittings body 1, the first seal ring 2, core body 3, gas outlet joint 4, right connector body 5, pressure equalization module.Left fittings body 1 adopts screw thread or bolt to be connected with right connector body 5, and junction plane adopts the first seal ring 2(junction plane that at least one groove is set, and each groove is placed at least one seal ring) sealing, prevent Leakage Gas; Gas outlet joint 4, pressure equalization module all adopt and are threaded with left fittings body 1, and junction plane adopts the first seal ring 2, prevents Leakage Gas.

11) pressure equalization module:

Comprise at least three pressurizers, as shown in Fig. 2,5, gas COMM communication comprises 4 pressurizers, pressurizer comprises spring fixed seat 8, the first spring 7, the first steel ball 6, spring fixed seat 8 cylindricals are threaded with left fittings body 1, on spring fixed seat 8, be provided with circular hole, the first spring 7, described the first steel ball 6 be set in circular hole between the first spring 7 and core body 3, core body 3 contacts with 6 of the first steel balls.

Core body 3: comprise that two ends, left and right arrange respectively the cylindrical body of symmetrical column sealed step; The length of column sealed step is A1, the displacement distance of column sealed step is A, be, on A > A1. core body 3 cylindrical body circumferential surfacies, identical left end arc groove C and right-hand member arc groove D are set, the center of described core body 3 left end arc groove C and core body 3 right-hand member arc groove D Central Symmetries are in the length direction center line of core body 3.

Described core body 3 left end arc groove C and core body 3 right-hand member arc groove D centre distances are B, and the center of described core body 3 left end arc groove C and core body 3 right-hand member arc groove D Central Symmetries are in the length direction center line of core body 3.Left end arc groove C bottom circular arc and right-hand member arc groove D bottom radius of arc are greater than the radius of steel ball.Core body 3 is when fittings body or right connector body direction move left, the first steel ball 6 is corresponding moving on the cone surface of core body 3 right-hand member arc groove D or core body 3 left end arc groove C respectively, and the left column sealed step of described core body 3, the right column sealed step of core body 3 move to respectively in the corresponding endoporus of left fittings body 1, right connector body 5.The top of described left end arc groove C and right-hand member arc groove D is connected with cylndrical surface circular arc, and arc groove bottom is arc surface, and round and smooth for transition, steel ball moves flexibly.The first steel ball 6 and left end arc groove C on core body 3 and right-hand member arc groove D remain and contact.

On the left column sealed step of described core body 3, annular groove is set respectively on the right column sealed step of core body 3, the first seal ring 2 is set in annular groove; Gas outlet joint 4, right connector body 5, spring fixed seat 8 arrange at least one for the groove of seal ring is set with 5 contacting points of left fittings body, and seal ring is respectively used to and left fittings body 5 close contacts, prevents Leakage Gas.

2, gas COMM communication working principle:

Left fittings body 1 forms left and right two-way suction port with right connector body 5, and by three end opening gas COMM communication of gas outlet joint 4 output gases; Pressurizer comprises spring fixed seat 8, the first spring 7, the first steel ball 6, spring fixed seat 8 cylindricals are threaded with left fittings body 1, on spring fixed seat 8, be provided with circular hole, the first spring 7 is set in spring fixed seat 8 circular holes, described the first steel ball 6 is between the first spring 7 and core body 3, and core body 3 contacts with 6 of the first steel balls; The pressure that described the first steel ball 6 acts on core body 3 surfaces is P, the axial thrust load of P is P1, radial component is P2, the end thrust that core body 3 left side air feed circuit pressures produce is B1, core body 3 right side air feed circuit pressure end thrust B2, as shown in Figure 3 (b), as B1 > P1+B2, core body 3 moves right and forms left loop gas passage, and left fittings body 1 is connected with gas outlet joint 4; As shown in Figure 4 (b), as B2 > P1+B, core body 3 is moved to the left and forms right loop gas passage, and right connector body 5 is connected with gas outlet joint 4.

Two, gas COMM communication (on an above-mentioned basis, also comprising switching signal transmission assembly 9):

As shown in Figure 6, switching signal transmission assembly 9 comprises the second steel ball 11, valve seat 12, the second seal ring 13, the second spring 14, spool 15, fixed base 16, sensitive switch 17.

Working principle: when core body 3 fittings body direction motion to the right, the second steel ball 11 moves on core body 3 cylndrical surface, left end arc groove C top, the second steel ball 11 promotes spool 15 motions, make sensitive switch 17 action reed motions, sensitive switch 17 movable contacts contact with sensitive switch 17 fixed contacts, produce electrical signal, export to detection facility (for detection of being the medical gas bottle work of left loop or the medical gas bottle work of right loop); When core body 3 fittings body 1 direction motion left, the second steel ball 11 moves in core body 3 left end arc groove C, and the second spring 14 makes spool 15 to the motion of steel ball direction, and sensitive switch does not produce electrical signal.

Three, a kind of automatic switchover medical gas backflow arranging device

31, form:

As shown in Figure 6, comprise left loop air intake assembly, right loop air intake assembly, gas output precision, gas safety discharge loop assembly, gas COMM communication 27, left loop air intake assembly, right loop air intake assembly, gas output precision correspondence and the left fittings body 1 of gas COMM communication 27, gas COMM communication 27 right connector bodies 5, gas COMM communication 27 gas outlet joints 4 are threaded, when gas COMM communication 27 core bodys 3 are when fittings body 5 directions move to the right, left loop air intake assembly is by after gas COMM communication 27, gas in medical gas steel cylinder is exported by the decompression of gas output precision is rear, when gas COMM communication 27 core bodys 3 are after fittings body direction moves left, right loop air intake assembly is by after gas COMM communication 27, by the gas in medical gas steel cylinder by the decompression of gas output precision after output.

311) left loop air intake assembly, right loop air intake assembly:

Left loop air intake assembly, right loop air intake assembly comprise respectively medical gas steel cylinder 21, safety check 22, stop valve 23, one-level decompressor 24, medical gas steel cylinder 21, safety check 22, stop valve 23, one-level decompressor 24 one end connect successively by gas pipeline, and one-level decompressor 24 the other ends of one-level decompressor 24 the other ends of left loop air intake assembly, right loop air intake assembly are corresponding to be respectively threaded with the left fittings body 21 of gas COMM communication 27, gas COMM communication 27 right connector bodies 5.

312) left loop air intake assembly, right loop air intake assembly working principle:

Be specially: medical gas is generally 15Mpa from left loop air intake assembly or right loop air intake assembly medical gas steel cylinder 21(maximum pressure) flow out, by the safety check 22 on its gas piping, stop valve 23, to 24 decompressions of one-level decompressor, through gas COMM communication 27, export.

313) left loop air intake assembly, right loop air intake assembly (also comprising respectively the first pressure gauge 25, the second pressure gauge 26).

11) on basis, described the first pressure gauge 25 is arranged between stop valve 23 and one-level decompressor 24, and the second pressure gauge is arranged between one-level decompressor 24 and gas COMM communication 27.

314) gas output precision forms:

Comprise at least 1 road gas output loop assembly, described gas output loop assembly comprises the first ball valve 28, second depressurized device 29, the second ball valve 30, and described gas COMM communication 27 gas outlet joints, the first ball valve 28, second depressurized device 29, the second ball valve 30 connect successively by gas pipeline.

As described in Figure 6, gas output precision comprises 2 road gas output loop assemblies, and described gas COMM communication 27 gas outlet joints are connected with the first ball valve 28 of two-way gas output loop assembly.When the parts in a road gas output loop assembly wherein break down and need repairing, close the parts (for example the first ball valve 28 and the second ball valve 30) in current gas output loop assembly, by an other road gas output loop assembly, work.

315) gas output precision (also comprising the 3rd ball valve 32, the 3rd pressure gauge 31):

As shown in Figure 6, the 3rd pressure gauge 31 is arranged between the second ball valve 30 and the 3rd ball valve 32.Certainly also can increase a plurality of ball valves and pressure gauge, a plurality of pressure gauges are convenient to observe and the gas pressure value in show circuit more accurately, when a plurality of ball valves are convenient to keep in repair, use.

32, a kind of automatic switchover medical gas backflow arranging device working principle concrete steps:

When initialization, set right loop air intake assembly stop valve 23 in first shutdown system, in the air intake assembly of left loop, stop valve 23 is in opening state, under the effect of gas pressure, gas COMM communication 27 core bodys 3 move right, form left loop gas passage, the medical gas passage in right loop gas passage is by the first seal ring 2 sealing and block, now by the medical gas steel cylinder 21 of left loop air intake assembly to gas output precision air feed.Open stop valve 23 in the air intake assembly of right loop, now, the thrust being produced by gas COMM communication 27 core body 3 left sides is greater than the thrust sum that the first steel ball 7 is moved to the left required axial thrust load and the 27 core body 3 right sides generations of gas COMM communication, gas COMM communication 27 core bodys 3 can not move, and still form left loop gas passage.When medical gas steel cylinder 21 gas pressures of left loop air intake assembly need drop to setting value because of continuous use, when the thrust that gas COMM communication 27 core body 3 right sides produce is greater than thrust that gas COMM communication 27 core body 3 left sides produce and the first steel ball 7 and is moved to the left required axial thrust load sum, gas COMM communication 27 core bodys 3 are moved to the left, gas COMM communication 27 first seal rings 2 block left loop gas passage, form right loop gas passage, by the medical gas steel cylinder 21 of right loop air intake assembly to gas output precision air feed, realized a left side, the automatic switchover of right medical gas steel cylinder 21 air feed, so periodic duty.After gas in the medical gas steel cylinder 21 of left loop air intake assembly is finished, close stop valve 23, the medical gas steel cylinder 21 of replaceable tolerance abundance.

When the pressure of the medical gas steel cylinder 21 of left loop air intake assembly is used to setting value, gas COMM communication 27 will be switched, medical gas steel cylinder 21 work of right loop air intake assembly, in gas COMM communication 27, be provided with sensitive switch, and realize and change bottle warning and show medical gas steel cylinder 21 work at present states by sensitive switch.

Described the first pressure gauge 25 is the suction pressures that show one-level decompressor 24, and the second pressure gauge 26 is to show one-level decompressor 24 post-decompression pressure, and the 3rd pressure gauge 31 is to show second depressurized device 29 post-decompression pressure.

Described the first safety valve 33, when the post-decompression pressure of one-level decompressor 24 is during higher than setting value, by safety valve exhausting air, guarantee that the post-decompression force value of one-level decompression reduction valve is in safety range, the second safety valve 34, when the post-decompression pressure of second depressurized device 29 is during higher than setting value, by the second safety valve 34 exhausting air, guarantee that second depressurized device 29 post-decompression force value are in safety range, gas discharge pipe 35 is that the gas that discharge is discharged by the first safety valve 33, the second safety valve 34 work causes safety zone, guarantees the work safety of system.

The present invention is not limited to aforesaid embodiment.The present invention expands to any new feature or any new combination disclosing in this manual, and the arbitrary new method disclosing or step or any new combination of process.

Claims

1. a gas COMM communication, it is characterized in that comprising: left fittings body (1), the first seal ring (2), core body (3), gas outlet joint (4), right connector body (5), pressure equalization module, described left fittings body 1 forms left and right two-way suction port with right connector body (5), and by three end opening gas COMM communication of gas outlet joint 4 output gases; Described gas outlet joint (4) is positioned at gas COMM communication circumferential surface neutral position; Described pressure equalization module is positioned on the circumferential surface of gas COMM communication, and described gas outlet joint (4), pressure equalization module are corresponding to be respectively threaded with left fittings body (1), and described right connector body 5 is connected with left fittings body (1) screw thread or bolt; Core body (3) contacts with pressure equalization module point; Core body (3) is to comprise that two ends, left and right arrange respectively the cylindrical body of symmetrical column sealed step; The length of column sealed step is A1, the displacement distance of column sealed step is A, be A > A1, identical left end arc groove (C) and right-hand member arc groove (D) are set on core body (3) cylindrical body circumferential surface, the center of described core body (3) left end arc groove (C) and core body (3) right-hand member arc groove (D) Central Symmetry are in the length direction center line of core body (3), and core body (3) moves left and right distance A and is less than core body (3) left end arc groove (C) and right-hand member arc groove (D) centre distance B; Core body (3) is when fittings body (1) or right connector body (5) direction move left, pressure equalization module respectively correspondence moves on core body (3) right-hand member arc groove (D) or core body (3) left end arc groove (C) cone surface, on the left column sealed step of described core body (3), the right column sealed step of core body (3), annular groove is set respectively, the first seal ring (2) is set in annular groove; The left column sealed step of described core body (3), the right column sealed step of core body (3) move to respectively in the corresponding endoporus of left fittings body (1), right connector body (5), by the column sealed step in a left side, set the first seal ring of right column sealed step (2) sealing; The junction plane place of gas outlet joint (4), right connector body (5), pressure equalization module and left fittings body (1) arranges at least one groove, shown in the first seal ring (2) is set in groove; The pressure that described pressure equalization module acts on core body (3) surface is P, the axial thrust load of P is P1, the radial component of P is P2, the end thrust that You Zuo loop, core body (3) left side supply gas pressure produces is B1, the end thrust that You You loop, core body (3) right side supply gas pressure produces is B2, as B1 > P1+B2, core body (3) moves right and forms left loop gas passage, and left fittings body (1) is connected with gas outlet joint (4); As B2 > P1+B1, core body (3) is moved to the left and forms right loop gas passage, and right connector body (5) is connected with gas outlet joint (4); Described gas outlet joint (4) is the gas output outlet of COMM communication, by pipe fitting, is connected with the pipeline of automatic switching cylinder manifold device.

2. a kind of gas COMM communication according to claim 1, it is characterized in that described pressure equalization module comprises at least three pressurizers, described pressurizer comprises the first steel ball (6), the first spring (7), spring fixed seat (8), spring fixed seat (8) is threaded with left fittings body (1), spring fixed seat is provided with circular hole on (8), in spring fixed seat (8) circular hole, the first spring (7) is set, described the first steel ball (6) is positioned between the first spring (7) and core body (3), and core body (3) contacts with the first steel ball (6) point; The power that described the first steel ball (6) acts on core body (3) surface is P, the axial thrust load of P is P1, the radial component of P is P2, the end thrust that You Zuo loop, core body (3) left side supply gas pressure produces is B1, the end thrust that You You loop, core body (3) right side supply gas pressure produces is B2, as B1 > P1+B2, core body (3) moves right and forms left loop gas passage, and left fittings body (1) is connected with gas outlet joint (4); As B2 > P1+B1, core body (3) is moved to the left and forms right loop gas passage, and right connector body (5) is connected with gas outlet joint (4); Described pressurizer is uniformly distributed on the external cylindrical surface of gas COMM communication, for moving to the left or to the right, balance core body (3) forms the power of right loop gas passage or left loop gas passage, until default left air circuit, the right air feed loop switch pressure of supplying.

3. a kind of gas COMM communication according to claim 1 and 2, characterized by further comprising switching signal transmission assembly (9), described switching signal transmission assembly (9) comprises the second steel ball (11), valve seat (12), the second seal ring (13), the second spring (14), spool (15), fixed base (16), sensitive switch (17), described sensitive switch (17) is push button, on described left fittings body (1) circumference, be provided with the mounting hole that switching signal transmission assembly is installed, described the second steel ball (11), valve seat (12), the second seal ring (13) is positioned in the mounting hole of the upper installation of left fittings body (1) switching signal transmission assembly successively, described fixed base (16) one end is threaded with left fittings body (1), fixed base (16) the other end is by fixing sensitive switch (17) shell of internal thread, sensitive switch (17) action reed contacts with spool (15) top, spool (15) is arranged in the endoporus of fixed base (16), spool (15) lower end contacts with the second steel ball (11) point through the second seal ring (13), spool (15) upper end contacts with sensitive switch (17), between valve seat (12) and spool (15), the second seal ring (13) is set, on spool (15), be provided with the step that the second spring (14) is installed, fixed base (16) endoporus is provided with the step hole of placing the second spring (14), between the step hole of spool (15) step and fixed base (16), be provided with the second spring (14), when core body (13) fittings body (5) direction motion to the right, the second steel ball (11) moves to core body (3) left end arc groove (C) top left side, be on the maximum diameter cylndrical surface of core body (3), the second steel ball (11) promotes spool (15) motion, make the motion of sensitive switch (17) action reed, sensitive switch (17) movable contact contacts with sensitive switch (17) fixed contact, produces electrical signal, exports to detection facility, when core body (3) fittings body direction motion left, the second steel ball (11) moves in core body (3) left end arc groove (C), the second spring (14) makes spool (15) to the motion of steel ball direction, and sensitive switch (17) does not produce electrical signal.

4. a kind of gas COMM communication according to claim 3, it is characterized in that in core body (3), arc groove is two cone buses and bottom circular arc and the tangent formation of top arc, left end arc groove (C) bottom circular arc and right-hand member arc groove (D) bottom radius of arc are greater than steel ball radius.

5. a kind of automatic switchover medical gas cylinder manifold device based on one of claim 1 to 4 Suo Shu, characterized by further comprising left loop air intake assembly, right loop air intake assembly, gas output precision, gas safety discharge loop assembly, left loop air intake assembly, right loop air intake assembly, gas output precision correspondence and the left fittings body of gas COMM communication (27) (1), gas COMM communication (27) right connector body (5), gas COMM communication (27) gas outlet joint (4) is threaded, when gas COMM communication (27) core body (3) is when fittings body (5) direction moves to the right, form left loop gas supply loop, gas in left side medical gas steel cylinder (21) is exported by the decompression of gas output precision is rear, when gas COMM communication (27) core body (3) is after fittings body direction moves left, form right loop gas supply loop, by the gas in the right medical gas steel cylinder (21) by the decompression of gas output precision after output.

6. a kind of automatic switchover medical gas cylinder manifold device according to claim 5, it is characterized in that described left loop air intake assembly, right loop air intake assembly comprises respectively: medical gas steel cylinder (21), safety check (22), stop valve (23), one-level decompressor (24), medical gas steel cylinder (21), safety check (22), stop valve (23), one-level decompressor (24) one end connects successively by gas pipeline, one-level decompressor (24) the other end of left loop air intake assembly, one-level decompressor (24) the other end of right loop air intake assembly is corresponding and gas COMM communication (27 left fittings bodies (1) respectively, gas COMM communication (27) right connector body (5) is threaded.

7. a kind of automatic switchover medical gas cylinder manifold device according to claim 6, it is characterized in that described gas output precision comprises at least 1 road gas output loop assembly, described gas output loop assembly comprises the first ball valve (28), second depressurized device (29), the second ball valve (30), and described gas COMM communication (27) gas outlet joint (4), the first ball valve (28), second depressurized device (29), the second ball valve (30) connect successively by gas pipeline.

8. a kind of automatic switchover medical gas cylinder manifold device according to claim 6, it is characterized in that described gas output precision comprises two-way gas output loop assembly, described gas COMM communication (27) gas outlet joint is connected with first ball valve (28) of two-way gas output loop assembly.

9. a kind of automatic switchover medical gas cylinder manifold device according to claim 7, it is characterized in that described gas output precision also comprises the 3rd ball valve (32), the 3rd pressure gauge (31), described left loop air intake assembly, right loop air intake assembly also comprises respectively the first pressure gauge (25), the second pressure gauge (26), gas safety discharge loop assembly also comprises the second safety valve (34), described the second ball valve (30) respectively with second depressurized device (29), the 3rd ball valve (32) connects, described the first pressure gauge (25) is arranged between stop valve (23) and one-level decompressor (24), the second pressure gauge is arranged between one-level decompressor (24) and gas COMM communication (27), the 3rd pressure gauge (31) is arranged between the second ball valve (30) and the 3rd ball valve (32), described the second safety valve (34) one end is arranged at the second ball valve (30), between the 3rd ball valve (32), described the second safety valve (34) the other end is connected with gas discharge pipe 35.

10. a kind of automatic switchover medical gas cylinder manifold device according to claim 5, it is characterized in that described gas safety discharge loop assembly comprises the first safety valve (33), gas discharge pipe (35), described the first safety valve (33) one end is connected with gas COMM communication gas outlet joint (4), and the first safety valve (33) the other end is connected with gas discharge pipe (35) concurrent.