CN205244703U - Medical gas terminal - Google Patents
Medical gas terminal Download PDFInfo
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- CN205244703U CN205244703U CN201521113334.6U CN201521113334U CN205244703U CN 205244703 U CN205244703 U CN 205244703U CN 201521113334 U CN201521113334 U CN 201521113334U CN 205244703 U CN205244703 U CN 205244703U
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- spool
- pressure
- gland
- medical gas
- overcoat
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Abstract
The utility model provides a medical gas terminal, including case overcoat, base, pressure sensor and poppet spring and case, set up the pressure detection gas passage and the 2nd pressure detection gas passage that have a perfect understanding each other on the base, a last pressure probe and the 2nd pressure probe of setting up of pressure sensor, the case cup joints with the activity of case overcoat, poppet spring installs between case and base, a pressure probe, the 2nd pressure probe communicate with each other with a pressure detection gas passage, the 2nd pressure detection gas passage respectively, when the case for the downstream of case overcoat and when compressing poppet spring to an allocation, lie in and feed through between air vent and the pressure detection gas passage on the case. The utility model discloses the gas pressure that can be arranged in medical gas circuit reports to the police and flow measurement, not only convenient operation, swift, reliable operation moreover.
Description
Technical field
The utility model relates to gas pressure reports to the police and flow measurement device technical field, especially relates to medical gas pipeA kind of Medical gas terminal of gas pressure warning and flow measurement in road.
Background technology
Gas pressure in medical gas pipeline is conventionally higher, and taking medical oxygen system as example, national standard requires eventuallyEnd pressure must not, lower than 0.4MPa, therefore, be pressed the gas in medical gas pipeline (being called for short " gas circuit ", lower same)The monitoring of power, just seems particularly important, important too to the measurement of gas flow in each region. But, existingIn Medical gas terminal assembly, measure gas flow in medical gas circuit by conventional metered dose mode more complicated, realExecute difficulty higher, metering, monitoring also very inconvenient, cause the measurement cost of the gas flow in medical gas circuit higher.
Utility model content
The technical problems to be solved in the utility model is: the problem existing for prior art, provides a kind of medical gasTerminal, can, quickly and easily for the measurement of gas flow of medical gas circuit, reduce the gas flow in medical gas circuitThe measurement cost of amount.
The technical problems to be solved in the utility model realizes by the following technical solutions: a kind of Medical gas terminal, bagDraw together spool overcoat, base, pressure sensor and valve core spring and spool, first of mutual perforation is set on basePressure detecting gas passage and the second pressure detecting gas passage, on described pressure sensor, arrange the first pressure probe andThe second pressure probe, described spool and spool overcoat pivot bush unit, described valve core spring is arranged between spool and base,Described the first pressure probe, the second pressure probe respectively with the first pressure detecting gas passage, the second pressure detecting gasPassage communicates; In the time that spool moves downward with respect to spool overcoat and compresses valve core spring to certain position, be positioned at spoolOn passage and the first pressure detecting gas passage between be communicated with.
Preferably, also comprise spool position-limit mechanism, described spool position-limit mechanism comprises valve seat and gland, described valve seat,Gland inner chamber is ladder-type structure, and described valve seat and base are connected and fixed, and described gland is socketed in valve base cavity,Described spool overcoat is socketed in gland inner chamber.
Preferably, also comprise bayonet lock and fixed mechanism thereof, the fixed mechanism of described bayonet lock comprises sliding sleeve and gland spring,On described valve seat, U-lag is set, described sliding sleeve is fixed on bayonet lock in the U-lag on valve seat, described gland springWith valve seat pivot bush unit, and be positioned at sliding sleeve below.
Preferably, in described gland inner chamber, locating slot is set, the first sealing ring is installed in locating slot.
Preferably, in described gland inner chamber, packing ring is set, described packing ring is between the first sealing ring and spool overcoat.
Preferably, also comprise the connecting plate being fixedly connected with base, on connecting plate, offer installing hole and connecting through hole,Described the first pressure probe, the second pressure probe are connected and fixed by connecting through hole and connecting plate respectively.
Preferably, also comprise warning device, between described warning device and pressure sensor, be electrically connected.
Preferably, described warning device is voice guard or photoelectric alarm.
Preferably, between described spool overcoat and base, the second sealing ring is set.
Preferably, the 3rd sealing ring is set between described spool overcoat and spool.
Compared with prior art, the beneficial effects of the utility model are: in the measurement of gas flow of carrying out in medical gas circuitTime, only medical gas circuit need to be connected and communicate with the first pressure detecting gas passage, the pipeline connect-disconnect plug of gas equipment is insertedEnter valve seat and promote spool and move downward with respect to spool overcoat, the gas in medical gas circuit enters into and establishes with gas through spoolIn standby, spool is moved downward between passage on spool and the first pressure detecting gas passage and is communicated with; At gas flowIn moving process, by the first pressure probe, the second pressure probe can measure respectively the first pressure detecting gas passage,Gas-static power in the second pressure detecting gas passage, then can calculate doctor according to flowing material mechanical characteristic formulaWith the gas flow in gas circuit, easy to operate, quick, reliable operation, has greatly reduced the gas in medical gas circuitThe measurement cost of flow.
Brief description of the drawings
Fig. 1 is the structural map (front view) of a kind of Medical gas terminal of the utility model.
Fig. 2 is the structural map (top view) of a kind of Medical gas terminal of the utility model.
Figure middle part product token name claims: 1-positioning sleeve, 2-gland, 3-trim ring, 4-bayonet lock, 5-sliding sleeve, 6-valve seat, 7-The first sealing ring, 8-gland, 9-packing ring, 10-spool overcoat, 11-base, 12-the second pressure detecting gas passage,13-the second pressure probe, 14-connecting plate, 15-pressure sensor, 16-the first pressure detecting gas passage, 17-firstPressure probe, 18-valve core spring, 19-air storing cavity, 20-the second sealing ring, 21-the 3rd sealing ring, 22-passage,23-spool, 24-gland spring, 25-installing hole.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing and concreteEmbodiment is elaborated to the utility model. Should be appreciated that specific embodiment described herein is only in order to separateRelease the utility model, and be not used in restriction the utility model.
A kind of Medical gas terminal as shown in Figure 1 and Figure 2, mainly comprises that spool overcoat 10, base 11, pressure passSensor 15 and valve core spring 18 and spool 23, be provided with the first pressure detecting of mutual perforation on described base 11Gas passage 16, air storing cavity 19 and the second pressure detecting gas passage 12, described the first pressure detecting gas passage 16,The central axis of the second pressure detecting gas passage 12 is mutually vertical; Be fixedly connected with circular configuration in base 11 bottomsConnecting plate 14, on connecting plate 14, offer installing hole 25 and two connecting through holes, described two connecting through holes respectivelyCommunicate with the first pressure detecting gas passage 16, the second pressure detecting gas passage 12. Described pressure sensor 15On the first pressure probe 17 and the second pressure probe 13 are set, described the first pressure probe 17, the second pressure probe13 are connected and fixed by two connecting through holes on connecting plate 14 and connecting plate 14 respectively, and, described the first pressureProbe 17, the second pressure probe 13 respectively with the first pressure detecting gas passage 16, the second pressure detecting gas passage12 communicate. In air storing cavity 19 on base 11, valve core spring 18 is set, described valve core spring 18 tops and spool23 bottoms connect, and valve core spring 18 bottoms contact with air storing cavity 19 base plane. Described spool 23 openends run throughSpool overcoat 10 and with spool overcoat 10 pivot bush units, on spool 23, offer passage 22.
As shown in Figure 1, between described base 11 tops and valve seat 6 bottoms, be sealedly and fixedly connected, described valve seat 6 inner chambersFor ladder-type structure, at valve seat 6 intracavity bottom pivot bush unit glands 8, form spool limit by valve seat 6 and gland 8Position mechanism. Be fixedly connected with positioning sleeve 1 at valve seat 6 inner cavity tops, the outside socket gland 2 of described positioning sleeve 1, is pressingBetween lid 2 and valve seat 6, arrange and the interconnective trim ring 3 of gland 2. Described gland 8 inner chambers are also ladder-type structure,And gland 8 intracavity bottoms and spool overcoat 10 are socketed mutually, and described spool overcoat 10 is socketed in the hollow of base 11Inner chamber top, described gland 8 bottoms simultaneously with the port of export pivot bush unit at the hollow cavity top of base 11. At valve seatU-lag is set on 6, by sliding sleeve 5, bayonet lock 4 is fixed in this U-lag, gland spring 24 and valve seat 6 activitiesSocket, and be positioned at sliding sleeve 5 belows, described sliding sleeve 5 and gland spring 24 have formed the fixed mechanism of bayonet lock 4. Work as valveWhen core 23 moves downward with respect to spool overcoat 10 and compresses valve core spring 18 to certain position, be positioned on spool 23Passage 22 will and the first pressure detecting gas passage 16 between be interconnected.
The Medical gas terminal of said structure can be for the measurement of gas flow in medical gas circuit, its concrete using methodBe: first Medical gas terminal is fixed on to assigned address by the installing hole 25 on connecting plate 14, carry out medicalWhen the measurement of gas flow in gas circuit, then the first pressure detecting gas passage 16 on base 11 is directly connected medicalGas system pipeline, the pipeline connect-disconnect plug of gas equipment inserts from the entrance on positioning sleeve 1 top, and enters through bayonet lock 4Enter in gland 8 inner chambers, until promotion spool 23 moves down, gas circuit connection is communicated.
In order to prevent the insertion maloperation of pipeline connect-disconnect plug of gas equipment, can be by the entrance basis on positioning sleeve 1 topGas with various kind is designed to different structures, if oxygen is hexagonal structure, as shown in Figure 2.
In order to ensure the sealing after the pipeline connect-disconnect plug of gas equipment inserts, can in gland 8 inner chambers, location be setGroove, and the first sealing ring 7 is installed in locating slot, as shown in Figure 1. For ensure gland 8 and spool overcoat 10 itBetween sealing, in gland 8 inner chambers, packing ring 9 is set, as shown in Figure 1. What described packing ring 9 adopted is elasticity rubberRubber gasket, to ensure the sealing property between gland 8 and spool place cover 10.
Conventionally, described spool 23 under the effect of valve core spring 18 by the 3rd sealing ring 21 and spool overcoat 10 itBetween keep sealing, meanwhile, the second sealing ring 20 is set between spool overcoat 10 and base 11, as shown in Figure 1.In the time that spool 23 does not move down, in the first pressure detecting gas passage 16, air storing cavity 19 and the second pressure detectingGas in gas passage 12 all remains static, therefore, and described the first pressure probe 17, the second pressure probe13 liang of gas-static power of locating equate. When the pipeline connect-disconnect plug of gas equipment moves downward and promote spool 23 to moving downWhen moving, spool 23 compresses valve core spring 18, and now gas flows to gas equipment by spool 23. When being positioned at spool 23On passage 22 and the first pressure detecting gas passage 16 between while being communicated with, to be measured in Medical gas terminalThe gas of amount is in flow regime, and the spool 23 of can flowing through of the gas to be measured in medical gas circuit enters into gas equipmentIn pipeline. In gas flow process, can detect respectively by the first pressure probe 17, the second pressure probe 13To the gas pressure in the first pressure detecting gas passage 16, the second pressure detecting gas passage 12, be designated as respectively P1,P2, after described pressure sensor 15 is electrically connected with devices such as computer, PLC, single-chip microcomputers, can directly read this P1,The concrete numerical value of real-time detection of P2.
According to flowing material mechanical characteristic formula:
P2-P1＝cQ2。
In above-mentioned formula, c is pressure coefficient, and its occurrence is relevant with this body structure of Medical gas terminal, and Q is in gas circuitGas flow. For concrete Medical gas terminal, can first adopt gas flow Q known, standard to pass intoMedical gas terminal, measures the P of the diverse location in gas circuit1、P2After, wherein, P2＞P1, the above-mentioned formula of substitutionAfter, can calculate c value. Hence one can see that, the gas flow in the pressure differential of the diverse location in this gas circuit and this gas circuitThe square of Q, therefore, can obtain this gas circuit by the pressure differential of measuring the diverse location in this gas circuitIn the occurrence of gas flow Q, easy to operate, quick, metering reliable results, has greatly reduced medical gas circuitIn the measurement cost of gas flow.
In order to further facilitate, effectively the gas pressure of the Medical gas terminal of flowing through to be monitored, prevent that gas is superPress or cause damage when under-voltage, can arrange between warning device and pressure sensor 15 and be electrically connected; Described warning dressPutting can be voice guard, can be also photoelectric alarm. When the gas superpressure by Medical gas terminal or under-voltageTime, described warning device can send corresponding alarm signal. It should be noted that, described warning device is passableDirectly be integrated on pressure sensor 15, can reduce the volume of Medical gas terminal, and can improve medical gas eventuallyThe functional reliability of end.
The foregoing is only preferred embodiment of the present utility model,, in order to limit the utility model, should not refer toGo out, all any amendments of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., allWithin should being included in protection domain of the present utility model.
Claims (10)
1. a Medical gas terminal, is characterized in that: comprise spool overcoat (10), base (11), pressure sensingDevice (15) and valve core spring (18) and spool (23) arrange the first pressure of mutual perforation on base (11)Detect gas passage (16) and the second pressure detecting gas passage (12), on described pressure sensor (15), arrange theOne pressure probe (17) and the second pressure probe (13), described spool (23) and spool overcoat (10) pivot bush unit,Described valve core spring (18) is arranged between spool (23) and base (11), described the first pressure probe (17),The second pressure probe (13) respectively with the first pressure detecting gas passage (16), the second pressure detecting gas passage (12)Communicate; When spool (23) moves downward with respect to spool overcoat (10) and compresses valve core spring (18) to a locationWhile putting, be positioned between passage (22) on spool (23) and the first pressure detecting gas passage (16) and be communicated with.
2. a kind of Medical gas terminal according to claim 1, is characterized in that: also comprise spool position-limit mechanism,Described spool position-limit mechanism comprises valve seat (6) and gland (8), and described valve seat (6), gland (8) inner chamber are rankTrapezium structure, described valve seat (6) is connected and fixed with base (11), and described gland (8) is socketed in valve seat (6)In chamber, described spool overcoat (10) is socketed in gland (8) inner chamber.
3. a kind of Medical gas terminal according to claim 2, is characterized in that: also comprise bayonet lock (4) andIts fixed mechanism, the fixed mechanism of described bayonet lock (4) comprises sliding sleeve (5) and gland spring (24), at described valve seat(6) U-lag is set on, and described sliding sleeve (5) is fixed on bayonet lock (4) in the U-lag on valve seat (6), instituteState gland spring (24) and valve seat (6) pivot bush unit, and be positioned at sliding sleeve (5) below.
4. according to a kind of Medical gas terminal described in claim 2 or 3, it is characterized in that: described gland (8)Locating slot is set in inner chamber, the first sealing ring (7) is installed in locating slot.
5. a kind of Medical gas terminal according to claim 4, is characterized in that: in described gland (8)Packing ring (9) is set in chamber, and described packing ring (9) is positioned between the first sealing ring (7) and spool overcoat (10).
6. according to a kind of Medical gas terminal described in claim 1-3 any one, it is characterized in that: also comprise and the endThe connecting plate (14) that seat (11) is fixedly connected with is offered installing hole (25) and connecting through hole on connecting plate (14),Described the first pressure probe (17), the second pressure probe (13) are connected with connecting plate (14) by connecting through hole respectivelyFixing.
7. according to a kind of Medical gas terminal described in claim 1-3 any one, it is characterized in that: also comprise warningDevice, described warning device and pressure sensor are electrically connected between (15).
8. a kind of Medical gas terminal according to claim 7, is characterized in that: described warning device is soundSound alarm or photoelectric alarm.
9. according to a kind of Medical gas terminal described in claim 1-3 any one, it is characterized in that: described spoolBetween overcoat (10) and base (11), the second sealing ring (20) is set.
10. according to a kind of Medical gas terminal described in claim 1-3 any one, it is characterized in that: described valveThe 3rd sealing ring (21) is set between core overcoat (10) and spool (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521113334.6U CN205244703U (en) | 2015-12-29 | 2015-12-29 | Medical gas terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521113334.6U CN205244703U (en) | 2015-12-29 | 2015-12-29 | Medical gas terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205244703U true CN205244703U (en) | 2016-05-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521113334.6U Active CN205244703U (en) | 2015-12-29 | 2015-12-29 | Medical gas terminal |
Country Status (1)
| Country | Link |
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| CN (1) | CN205244703U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443906A (en) * | 2015-12-29 | 2016-03-30 | 四川港通医疗设备集团股份有限公司 | Medical gas terminal and metering method for flow rate of gas in medical gas channel |
| CN107202219A (en) * | 2017-06-05 | 2017-09-26 | 广州爱锘德医疗器械有限公司 | Medical fluid quick connector |
| CN108843811A (en) * | 2018-08-02 | 2018-11-20 | 周忠才 | A kind of duplex threeway ball valve in the same direction |
-
2015
- 2015-12-29 CN CN201521113334.6U patent/CN205244703U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443906A (en) * | 2015-12-29 | 2016-03-30 | 四川港通医疗设备集团股份有限公司 | Medical gas terminal and metering method for flow rate of gas in medical gas channel |
| CN107202219A (en) * | 2017-06-05 | 2017-09-26 | 广州爱锘德医疗器械有限公司 | Medical fluid quick connector |
| CN108843811A (en) * | 2018-08-02 | 2018-11-20 | 周忠才 | A kind of duplex threeway ball valve in the same direction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: No.356, south section of kailiwei Industrial Avenue, Jianyang City, Chengdu City, Sichuan Province Patentee after: SICHUAN GANGTONG MEDICAL EQUIPMENT GROUP Co.,Ltd. Address before: 641400 Ziyang city of Sichuan Province, Jianyang city Kailiwei Industrial Avenue South No. 11 Patentee before: SICHUAN GANGTONG MEDICAL EQUIPMENT GROUP Co.,Ltd. |