WO2013097688A1 - 旁通阀 - Google Patents

旁通阀 Download PDF

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Publication number
WO2013097688A1
WO2013097688A1 PCT/CN2012/087372 CN2012087372W WO2013097688A1 WO 2013097688 A1 WO2013097688 A1 WO 2013097688A1 CN 2012087372 W CN2012087372 W CN 2012087372W WO 2013097688 A1 WO2013097688 A1 WO 2013097688A1
Authority
WO
WIPO (PCT)
Prior art keywords
gas
valve
gas passage
gasket
valve body
Prior art date
Application number
PCT/CN2012/087372
Other languages
English (en)
French (fr)
Inventor
郑殿会
Original Assignee
北京谊安医疗系统股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 北京谊安医疗系统股份有限公司 filed Critical 北京谊安医疗系统股份有限公司
Priority to US14/000,865 priority Critical patent/US8967194B2/en
Priority to EA201391161A priority patent/EA025719B1/ru
Priority to BR112013023220A priority patent/BR112013023220A2/pt
Publication of WO2013097688A1 publication Critical patent/WO2013097688A1/zh

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/20Valves specially adapted to medical respiratory devices
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/10Preparation of respiratory gases or vapours
    • A61M16/14Preparation of respiratory gases or vapours by mixing different fluids, one of them being in a liquid phase
    • A61M16/18Vaporising devices for anaesthetic preparations
    • A61M16/183Filling systems
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00Check valves
    • F16K15/14Check valves with flexible valve members
    • F16K15/148Check valves with flexible valve members the closure elements being fixed in their centre
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/20Valves specially adapted to medical respiratory devices
    • A61M16/208Non-controlled one-way valves, e.g. exhalation, check, pop-off non-rebreathing valves
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00Fluid handling
    • Y10T137/7722Line condition change responsive valves
    • Y10T137/7837Direct response valves [i.e., check valve type]
    • Y10T137/7859Single head, plural ports in parallel
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00Fluid handling
    • Y10T137/7722Line condition change responsive valves
    • Y10T137/7837Direct response valves [i.e., check valve type]
    • Y10T137/7879Resilient material valve
    • Y10T137/7888With valve member flexing about securement
    • Y10T137/789Central mount
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00Fluid handling
    • Y10T137/8593Systems
    • Y10T137/87917Flow path with serial valves and/or closures
    • Y10T137/88046Biased valve with external operator
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00Fluid handling
    • Y10T137/8593Systems
    • Y10T137/87917Flow path with serial valves and/or closures
    • Y10T137/88054Direct response normally closed valve limits direction of flow

Definitions

  • the present invention relates to the field of medical devices, and more particularly to a bypass valve.
  • the anesthesia machine is a device with high requirements for safety, stability and easy operation of the operating room. It sends the anesthetic into the patient's alveoli through a mechanical circuit to form a partial pressure of the anesthetic gas, which is diffused into the blood and directly to the central nervous system. Inhibition occurs, resulting in the effect of general anesthesia.
  • the anesthesia machine mainly includes four parts: the gas supply system, the volatile tank, the ventilator and the circuit system.
  • the anesthesia vaporizer is an important component of the anesthesia machine, which provides a stable, precise concentration of anesthetic mixture to the patient through an anesthesia machine. It can effectively evaporate anesthetics; it can also accurately control the output concentration of anesthetic vapor.
  • the anesthesia machine and the anesthetic evaporator are connected by a bypass valve.
  • the anesthesia machine delivers gas to the patient through the bypass valve.
  • the bypass valve functions as a passage for conveying the gas, so that the gas should not be leaked outward, if the airtightness is not good enough. Some gas will leak out, causing waste of resources.
  • it should also ensure that the gas flowing through the bypass valve has no gas resistance or small gas resistance, so as to provide smooth gas supply to the patient;
  • the bypass valve has its own gas delivery channel closed, all the gas flows through the anesthetic evaporator, and the evaporator output enters the anesthesia machine through the bypass valve again, and delivers the patient end.
  • the bypass valve should ensure that the anesthetic does not leak, if the gas Poor density, resulting in leakage of anesthetic, not only a waste of resources, but also an anesthesia for doctors, greatly affecting the quality of surgery and patient safety.
  • the conventional bypass valves have an air inlet and an air outlet.
  • gas enters the evaporator from the air inlet through the bypass valve, and the output of the evaporator passes through the air outlet of the bypass valve to enter the downstream of the anesthesia machine. Delivery to the patient end, during the actual operation, when the pressure of the outlet port fluctuates, the gas will flow backwards, resulting in an inaccurate concentration of the anesthetic gas output, which is inconvenient for use; at the same time, the traditional bypass valve also has a structural process. Sexual defects, as well as defects such as insufficient air tightness.
  • the object of the present invention is to solve the problem that the gas flow backflow phenomenon occurs when the outlet port of the conventional bypass valve has a pressure fluctuation, which further leads to an inaccurate concentration of the output anesthetic gas, and provides a bypass valve which passes through the bypass valve.
  • the gas port is provided with a check valve, which makes the gas flow direction unique, does not cause gas backflow phenomenon, and has the advantages of structural processability and better air tightness.
  • a bypass valve includes a valve body, the valve body has an air inlet and an air outlet, and a check valve is disposed at the air outlet, the check valve includes a one-way valve body, a gas permeable plate and a first a gasket having a first gas passage for gas supply inside, a gas permeable plate having a gas permeable hole, the gas permeable hole communicating with the gas outlet, the first gasket being disposed at Between the gas permeable plate and the one-way valve body, the first gas passage and the venting hole are selectively communicated through the first gasket.
  • valve body is provided with a valve cover, the valve cover has a second gas passage therein, the body has a third gas passage, a first cavity communicating with the intake port, and a first a second cavity communicating with the cavity, the second cavity and the third gas passage are used for the bypass valve to deliver gas when the evaporator is not turned on, and the first cavity is in communication with the second cavity.
  • the air outlet is provided with a stepped annular groove on the valve body, which is a first annular groove and a second annular groove, respectively, and the gas permeable plate is installed in the first annular groove, and is closely attached to the An outer end surface of the gas permeable plate fastens the valve body to the valve body by a screw, at a joint of the gas permeable plate and the valve body, the check valve body and the valve
  • the joints of the body are provided with a sealing ring.
  • the upper portion of the first cavity has an internal thread
  • the valve cover is matched with the internal thread and provided with an external thread, so that the cover is screwed on the body, and the cover is cut on the cover.
  • Grooves are respectively located on upper and lower sides of the external thread, and a sealing ring is disposed in both grooves, and a sealing ring on the upper side of the external thread is used to reinforce between the valve cover and the evaporator The airtightness of the sealing ring on the lower side of the external thread is used to strengthen the airtightness between the valve cover and the valve body;
  • the third gas passage is disposed below the first cavity and communicates with the bottom of the first cavity such that the second gas passage and the third gas passage are oppositely disposed corresponding to the second gas
  • the outlet of the passage is provided with a first boss at the bottom of the valve cover, and a second boss is disposed at the bottom of the first cavity corresponding to the inlet of the third gas passage.
  • a third annular groove is disposed at an end of the one-way valve body contacting the gas permeable plate, and the third annular groove is in communication with the first gas passage;
  • the gas permeable plate has a circular shape as a whole, and has a stepped surface at its outer edge for mounting a sealing ring, the gas permeable plate has a central hole, and has a plurality of venting holes;
  • a first gasket is disposed between the gas permeable plate and the one-way valve body, and the gas outlet is selectively in communication with the first gas passage by movement of the first gasket.
  • a valve body is disposed in the installation space composed of the second gas passage, the first cavity, and the third gas passage, and the valve core is provided with a second gasket, and the second gasket is located Between the first boss and the second boss, the first cavity is selectively in communication with the second gas channel and the third gas channel by the up and down movement of the second gasket.
  • the first gasket includes a disc portion and a rod portion, the rod portion is disposed at a center of the disc portion, and the first gasket is mounted on the gas permeable plate and the check valve Between the valve bodies, such that the rod portion passes through the central hole, and the length of the rod portion is greater than the thickness of the gas permeable plate, and the outer end of the rod portion is provided with a limit cap to First The gasket does not fall off the gas permeable plate, and when the disk portion is in close contact with the gas permeable plate, the vent hole and the third annular groove are blocked, the gas outlet and the first The gas channel is blocked.
  • valve core comprises a gland, an upper spring, a valve stem and a lower spring connected in sequence from top to bottom;
  • the upper end of the gland has a first protrusion, and a second protrusion is disposed inwardly at an upper end of the valve cover corresponding to the first protrusion, and the second protrusion is located at an inlet of the second gas passage Retaining the gland in the second gas passage by the cooperation of the first protrusion and the second protrusion, the gland is generally cylindrical, and is straight and cut at the periphery thereof , and a circular arc-shaped guide is left at the center of the straight side.
  • the outer diameter of the disc portion is smaller than the inner diameter of the third annular groove, and the third annular groove is provided with a plurality of limiting protrusions of the disc portion, and the third annular groove and the The first gas passage is in communication, and an outlet pipe joint is screwed to the outer end of the first gas passage.
  • the bottom of the bottom of the gland extends upwardly with an upper mounting groove, and the upper mounting notch is rounded, and the center of the top of the valve stem extends downwardly with a lower mounting groove, and the upper end of the spring Installed in the upper mounting slot and the other end in the lower mounting slot;
  • An annular body is disposed in a middle portion of the valve stem, and an upper portion of the annular body has a tapered surface, and a second gasket mounting groove is formed on the valve stem against a lower end surface of the annular body, and the second gasket passes through a second gasket mounting groove is mounted on the mast, the lower spring sleeve is disposed on a periphery of the lower portion of the mast, one end is disposed in the third gas passage, and the other end is in contact with the lower end surface of the second gasket .
  • the beneficial effects of the invention are as follows: by providing a one-way valve at the air outlet of the valve body, when the gas flows in a normal flow direction, the one-way valve is opened, and the gas flows smoothly; when the pressure is fluctuated at the air outlet, the gas is reversed.
  • the check valve includes a one-way valve body, a gas permeable plate, and the two are connected to the first gasket to open or close the one-way valve, when the gas
  • the flow direction is normal flow direction, that is, from the first cavity to the air outlet, under the action of the gas pressure, the first gasket is pushed to move toward the first gas passage side, so that a gap occurs between the first gasket and the gas permeable plate.
  • the gas flows from the vent hole to the first gas passage to realize the output of the gas; when the gas reversely flows backward, that is, flows inward from the first gas passage, under the action of the gas pressure, the first gasket is pressed against the gas permeable plate, Further, the first gas passage and the air outlet are blocked, and the gas cannot flow from the first gas passage into the bypass valve; the valve cover and the valve body are strengthened by providing a double seal ring at the joint between the valve cover and the valve body, The airtightness between the evaporators; the airtightness between the one-way valve and the valve body is enhanced by providing a sealing ring at the joint of the one-way valve body and the valve body, and at the junction of the gas permeable plate and the valve body .
  • the bypass valve of the present invention has the advantages of ensuring unique gas flow direction, simple structure, and better air tightness.
  • Figure 1 is a partial cross-sectional view showing the bypass valve of the present invention
  • Figure 2 is a schematic cross-sectional view of the valve body shown in Figure 1;
  • Figure 3 is a cross-sectional view of the valve cover shown in Figure 1;
  • Figure 4 is a perspective view of the gland shown in Figure 1;
  • Figure 5 is a cross-sectional view of the gland shown in Figure 1;
  • Figure 6 is a perspective view of the valve stem shown in Figure 1;
  • Figure 7 is a cross-sectional view of the valve stem shown in Figure 1;
  • Figure 8 is a perspective view of the check valve body shown in Figure 1;
  • Figure 9 is a cross-sectional view of the check valve body shown in Figure 1;
  • Figure 10 is a perspective view of the gas permeable plate shown in Figure 1;
  • Figure 11 is a cross-sectional view showing the gas permeable panel shown in Figure 1;
  • Figure 12 is a perspective view of the first gasket shown in Figure 1.
  • valve cover 21, a second gas passage; 22, a second protrusion; 23, a first boss; 24, a second groove; 25, a third groove;
  • a gland 31, a gland; 311, a first protrusion; 312, an upper mounting groove; 313, a guiding portion;
  • valve stem 33, lower mounting groove; 332, annular body; 333, second gasket mounting groove;
  • the bypass valve of the present invention includes a valve body 1, a valve body 1 has an air inlet and an air outlet, and a check valve 4 is disposed at the air outlet, the check valve 4 includes a check valve body 41, a gas permeable plate 42 and a first gasket 43, and the check valve body 41 has a inside
  • the first gas passage 411 for gas transmission the gas permeable plate 42 has a venting hole 421, the venting hole 421 is in communication with the gas outlet, and the first gasket 43 is disposed between the gas permeable plate 42 and the check valve body 41, the first gas
  • the passage 411 and the venting hole 421 are selectively communicated by the first gasket 43.
  • the check valve 4 When the gas flows out from the air outlet, the check valve 4 is opened, and a gap is formed between the first gasket 43 and the gas permeable plate 42 so that The venting hole 421 communicates with the first gas passage 411 to realize normal gas output.
  • the check valve 4 When the pressure of the air outlet is fluctuating, the gas is reversed, the check valve 4 is closed, and the first gasket 43 is in close contact with the gas permeable plate 42 to The vent hole 421 is blocked from the first gas passage 411, so that the gas cannot flow back into the bypass valve.
  • the valve body 1 is provided with a valve cover 2, a valve core 3 is disposed between the valve cover 2 and the valve body 1, and a second gasket 35 is mounted on the valve core 3, and the valve core 3 includes a gland connected in series from top to bottom. 31.
  • the valve body 1 has a first cavity 11 communicating with an air inlet (not shown), and a first cavity 11 communicating with the first cavity 11.
  • the second cavity 12, the third gas passage 13, the upper portion of the first cavity 11 has an internal thread for screwing the valve cover 2, and the second cavity 12 and the third gas passage 13 are used for the bypass valve
  • the gas is delivered when the evaporator is turned on, and the third gas passage 13 is located below the first cavity 11 and communicates with the bottom of the first cavity 11, and the inlet of the corresponding third gas passage 13 is disposed at the bottom of the first cavity 11.
  • the second boss 16 has concentrically opened two annular grooves at the air outlet, respectively a first annular groove 14 and a second annular groove 15, and is further provided with a first groove 17 for mounting a single
  • a sealing ring 5 is disposed inside the first groove 17 of the gas permeable plate 42 of the valve. Since it is located at the junction of the check valve and the bypass valve, the airtightness between the check valve and the bypass valve can be enhanced. effect.
  • Fig. 3 a specific embodiment of the valve cover is shown.
  • the valve cover 2 has a hollow structure with a second gas passage 21 inside, the bottom of which is the outlet of the second gas passage 21, and the top is the second.
  • the outlet of the second gas passage 21 is provided with a first boss 23 at the bottom of the valve cover 2, and the upper portion of the valve cover 2 has a second protrusion 22 inward.
  • the external thread is disposed, and the second IHJ groove 24 and the third IHJ groove 25 are respectively disposed on the valve cover 2 on the upper and lower sides of the external thread, and the sealing ring 5 is disposed in the second IHJ groove 24 and the third IHJ groove 25
  • the sealing ring 5 on the upper side of the threaded connection ensures airtightness between the bonnet 2 and the evaporator, and the sealing ring 5 on the lower side of the threaded connection ensures
  • the valve body 1 and the valve cover 2 have good airtightness.
  • the valve core 3 includes a gland 31, an upper spring 32, a valve stem 33, and a lower spring 34.
  • the gland 31 has a cylindrical shape as a whole. The outer circumference is evenly slit and has four straight sides, and the straight side can form a gas passage between the lid 2 and the gland 31, and a circular arc-shaped guiding portion 313 is left at the center of the straight side, and the guiding portion 31 3 can The gland 31 is moved smoothly and reliably inside the bonnet 1.
  • the upper part of the gland 31 is provided with a first protrusion 311, and the bottom center extends upwardly with an upper mounting groove 312, and the upper mounting groove 312 is rounded and rounded for easy and upper
  • the top center of the valve stem 33 extends downwardly with a lower mounting groove 331.
  • the middle portion of the valve stem 33 is provided with an annular body 332.
  • the upper portion of the annular body 332 has a tapered surface, and the lower end surface of the annular body 332 is adjacent to the valve.
  • a second gasket mounting groove 333 is opened in the rod 33.
  • the upper spring 32-end is installed in the upper mounting groove 312, the other end is installed in the lower mounting groove 331, and the second gasket 35 is mounted on the mast 33 through the second gasket mounting groove 333, and the lower spring 34 is sleeved.
  • valve stem 33 On the lower periphery of the valve stem 33, one end is placed in the third gas passage 13 and the other end is in contact with the lower end surface of the second gasket 35, and then the valve core 3 is aligned inside the valve cover 1, by compressing the upper and lower springs 32, 34 screwing the valve cover 2 to the valve body 1 through the first protrusion 311 and the second protrusion 22 Tightening each other, the gland 31 is confined in the second gas passage 21, and the second gasket 35 is located opposite to the third gas passage 13 and the second gasket 35 is located at the first boss 23 and the second boss 16 Meanwhile, when the second gasket 35 moves upward and is tightened with the first boss 23, the second gas passage 21 is blocked, and the first cavity 11 communicates with the third gas passage 13; when the second gasket When the downward movement and the second boss 16 are tightened, the third gas passage 13 is blocked, and the first cavity 11 communicates with the second gas passage 21.
  • the one-way valve 4 is installed at the air outlet, and includes a one-way valve body 41 and a gas permeable plate 42, a one-way valve body There is a first gas passage 411 therein, and a third annular groove 412 is opened at the inlet of the first gas passage 411.
  • the third annular groove has a plurality of limiting protrusions 413 therein, and the outlet of the first gas passage 411 passes through the thread.
  • the check valve body 41 is also provided with a threaded hole, so that it can be connected to the valve body 1 by screws;
  • the gas permeable plate 42 is generally circular, has a central hole, and has four venting holes 421, the outer edge of the gas permeable plate 42 is cut with a step surface 422, and the step surface 422 is provided with a sealing ring 5;
  • a first gasket 43 is disposed between the gas permeable plate 42 and the check valve body 41, the first gasket 43 including a disk portion 431 and a rod portion 432, and the rod portion 432 is disposed at the center of the disk portion 431 And the length of the rod portion 432 is greater than the thickness of the gas permeable plate 42, the rod portion 432 can be moved back and forth in the central hole of the gas permeable plate 42, in order to prevent the first gasket 43 from falling off the gas permeable plate 42, at the rod portion 432
  • the end portion is provided with a limiting cap 433.
  • the outer shape of the limiting cap 433 is larger than the central aperture, and a plurality of limiting protrusions 413 are disposed in the third annular groove 412 to limit the position of the disc portion 431.
  • the rod portion 432 and the limiting cap 433 are first penetrated into the central hole of the gas permeable plate 42, and then the gas permeable plate 42 and the sealing ring 5 are installed in the first annular groove 14 to
  • the limiting cap 433 is placed in the second annular groove 15, and the disc portion 431 is bonded to the rod portion 432, and the sealing ring 5 is placed in the first recess 17, and the disc portion 431 and the third ring are made.
  • the one-way valve body 41 is fastened to the valve body 1 by screws. Since the outer diameter of the disk portion 431 is smaller than the inner diameter of the third annular groove 412, the disk portion 431 is placed in the third annular groove 412. When the disc portion 431 is in close contact with the gas permeable plate 42, it can block the vent hole 421 to block the gas outlet from the first gas passage 411.
  • bypass valve of the present invention As shown in Fig. 1, only the partial structure of the bypass valve of the present invention is shown, and the bypass valve actually has two identical valve covers, all of which are installed. On the valve body, the valve body has two independent gas paths.
  • the bypass valve at this time actually acts as a gas passage, and the gas enters the valve body from the intake pipe joint, and finally
  • the second cavity 12 outputs; when the bypass valve is connected to the evaporator, both valve covers are connected to the evaporator, (ie, one evaporator needs to cooperate with the two valve covers at the same time to achieve the connection with the bypass valve),
  • the gas enters the inside of the valve body from the intake pipe joint, enters the evaporator from the first valve cover, and then enters the valve body from the evaporator through the second valve cover, and finally outputs from the pipe joint at the air outlet.
  • the upper part of the bonnet is designed as a hexagonal structure, and its main function is to facilitate the assembly with the valve body (ie, the peripheral structure of the bonnet is mainly used for matching with the assembly tool), and each bypass valve can be attached at the same time. Or multiple evaporators.
  • the bypass valve When the evaporator is not turned on, the bypass valve at this time actually functions as a gas passage, the second chamber 12 is the outlet end portion of the gas passage, and the gland 31 is not depressed, and the lower spring 34 is Under the elastic force, the second gasket 35 is pressed against the first boss 23, the second gas passage 21 is blocked, the gas enters the third gas passage 13 from the air inlet, and enters the second chamber through the first cavity 11
  • the body 12 is then passed downstream of the anesthesia machine through a bypass valve conduit and a connector (not shown).
  • the gland 31 When the evaporator is turned on, the gland 31 is depressed, so that the second gasket 35 is moved downward against the elastic force of the lower spring 34, and is tightened with the second boss 16, and the third gas passage 13 is blocked, anesthetized Gas
  • the body enters the first cavity 11 from the second gas passage 21, flows into the air outlet through the second cavity 12, and when entering the inside of the second annular groove 15, the gas pressure pushes the first gasket 43 to the right to make the first
  • a gap is formed between the gasket 43 and the gas permeable plate 42 through which the gas flows from the gas permeable hole 421 into the third annular groove 412, and then flows into the first gas passage 411 and is output from the pipe joint 6.

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Emergency Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • Pulmonology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Check Valves (AREA)
  • Valve Housings (AREA)

Abstract

一种旁通阀,包括阀体(1),所述阀体(1)具有进气口和出气口,在所述出气口处设置有单向阀(4),所述单向阀(4)包括单向阀阀体(41)、透气板(42)和第一密封垫(43),所述单向阀阀体(41)内部具有输气用第一气体通道(411),所述透气板(42)上具有透气孔(421),所述透气孔(421)与所述出气口相连通,所述第一密封垫(43)设置在透气板(42)与单向阀阀体(41)之间,所述第一气体通道(411)与透气孔(421)之间通过第一密封垫(43)选择性连通。所述的旁通阀通过在出气口设置单向阀(4),使得气体流向唯一,克服了气体逆流导致麻醉气体浓度不精确的问题,并具有结构工艺性及气密性更好的优点。

Description

旁通阀 技术领域
本发明涉及医疗器械领域, 尤其涉及一种旁通阀。
背景技术
麻醉机是手术室安全性、 稳定性、 易操作性要求很高的设备, 其通过 机械回路将麻醉药送入患者的肺泡, 形成麻醉药气体分压, 弥散到血液后, 对中枢神经系统直接发生抑制作用, 从而产生全身麻醉的效果, 麻醉机主 要包括供气系统、 挥发罐、 呼吸机和回路系统四个部分。
麻醉蒸发器是麻醉机上的重要组成部件, 其通过麻醉机向病人提供稳 定、 浓度精确的麻醉混合气体。 其能有效的蒸发麻醉药; 还能够精确的控 制麻醉蒸汽的输出浓度。
麻醉机与麻醉蒸发器是通过旁通阀相连的。 当未接通麻醉蒸发器时, 麻醉机通过旁通阀向病人端输送气体, 此时旁通阀起到输送气体的通道的 作用, 故应当保证气体不向外泄露, 如果气密性不够好, 就会有部分气体 外泄, 造成资源浪费, 同时还应当保证流经旁通阀的气体无气阻或者气阻 很小, 以使通畅的向病人端提供气体; 当接通麻醉蒸发器以后, 旁通阀自 身具有的气体输送通道关闭, 所有气体流经麻醉蒸发器, 经蒸发器输出再 次通过旁通阀进入麻醉机, 输送病人端, 此时旁通阀应当保证麻醉剂不泄 露, 如果气密性不好, 造成麻醉剂泄露, 不仅是资源浪费, 更是对医生的 一种麻醉, 极大的影响了手术的质量和病人的安全。
传统的旁通阀均具有进气口和出气口, 工作时, 气体从进气口经旁通 阀进入蒸发器, 由蒸发器输出再次经旁通阀出气口进入麻醉机下游, 进而 输送至病人端, 实际操作过程中, 当出气口压力有波动时, 就会使气体逆 流, 导致输出的麻醉气体浓度不够精确, 给使用带来不便; 同时的传统的 旁通阀还存在结构工艺性缺陷, 以及气密性不够好等缺陷。
发明内容
本发明的目的在于解决传统旁通阀出气口有压力波动时, 会造成气体 逆流现象, 进一步导致输出的麻醉气体浓度不精确的问题, 提供一种旁通 阀, 其通过在旁通阀的出气口设置单向阀, 使得气体流向唯一, 不会造成 气体逆流现象, 并具有结构工艺性及气密性更好的优点。
本发明的目的是通过以下技术方案来实现:
一种旁通阀, 包括阀体, 所述阀体具有进气口和出气口, 在所述出气 口处设置有单向阀, 所述单向阀包括单向阀阀体、 透气板和第一密封垫, 所述单向阃阃体内部具有输气用第一气体通道, 所述透气板上具有透气孔, 所述透气孔与所述出气口相连通, 所述第一密封垫设置在透气板与单向阀 阀体之间, 所述第一气体通道与透气孔之间通过第一密封垫选择性连通。
进一步的, 所述阀体上设置有阀盖, 所述阀盖内具有第二气体通道, 所述阃体内具有第三气体通道、 一个与进气口相通的第一腔体、 一个与第 一腔体相通的第二腔体, 所述第二腔体及第三气体通道用于所述旁通阀在 未接通蒸发器时输送气体, 所述第一腔体与第二腔体相通。
优选的, 对应所述出气口在所述阀体上设置有台阶环形槽, 分别为第 一环形槽和第二环形槽, 所述透气板安装在所述第一环形槽内, 紧贴所述 透气板的外端面、 通过螺钉将所述单向阀阀体紧固在所述阀体上, 在所述 透气板与所述阀体的接合处、 所述单向阀阀体与所述阀体的接合处均设置 有密封圈。 优选的, 所述第一腔体上部具有内螺紋, 所述阀盖匹配内螺紋设置有 外螺紋, 以使所述阃盖螺紋连接在所述阃体上, 在所述阃盖上环切两凹槽, 且分别位于所述外螺紋的上、 下两侧, 并在两凹槽内均设置密封圈, 位于 所述外螺紋上侧的密封圈用于加强所述阀盖与蒸发器之间的气密性, 位于 所述外螺紋下侧的密封圈用于加强所述阀盖与阀体之间的气密性;
所述第三气体通道设置在所述第一腔体的下方, 并与第一腔体的底部 相通, 以使所述第二气体通道与第三气体通道呈相对设置, 对应所述第二 气体通道的出口在所述阀盖底部设置第一凸台, 对应所述第三气体通道的 进口在所述第一腔体的底部设置第二凸台。
进一步的, 在所述单向阀阀体与透气板相接的端部处设置有第三环形 槽, 所述第三环形槽与所述第一气体通道相通;
所述透气板整体呈圓形, 并在其外缘环切有台阶面, 用于安装密封圈, 所述透气板上具有中心孔, 还具有若干透气孔;
所述透气板与单向阀阀体之间设置有第一密封垫, 通过所述第一密封 垫的运动, 实现所述出气口与第一气体通道选择性连通。
进一步的, 在由所述第二气体通道、 第一腔体、 第三气体通道组成的 安装空间内设置有阀芯, 所述阀芯上设置有第二密封垫, 所述第二密封垫 位于第一凸台与第二凸台之间, 通过所述第二密封垫的上下运动, 实现第 一腔体与第二气体通道、 第三气体通道选择性连通。
进一步的, 所述第一密封垫包括圓盘部分和杆件部分, 所述杆件部分 设置在所述圓盘部分的中心处, 所述第一密封垫安装在所述透气板与单向 阀阀体之间, 以使所述杆件部分穿过所述中心孔, 且所述杆件部分的长度 大于所述透气板的厚度, 所述杆件部分外端设置有限位帽, 以使所述第一 密封垫不脱落于所述透气板, 当所述圓盘部分贴紧所述透气板时, 所述透 气孔与所述第三环形槽之间被阻断, 所述出气口与所述第一气体通道阻断。
进一步的, 所述阀芯包括由上至下依次相连的压盖、 上弹簧、 阀杆、 下弹簧;
所述压盖上端具有第一凸起, 对应所述第一凸起在所述阀盖的上端向 内设置有第二凸起, 所述第二凸起位于所述第二气体通道的进口处, 通过 所述第一凸起与第二凸起的配合, 将所述压盖限制在所述第二气体通道内, 所述压盖整体呈圓柱形, 在其外围均勾纵切四直边, 且在直边的中心位置 留有圓弧形导向部。
进一步的, 所述圓盘部分的外径小于所述第三环形槽的内径, 所述第 三环形槽内设置有若干所述圓盘部分的限位凸起, 所述第三环形槽与所述 第一气体通道连通, 并在所述第一气体通道的外端部通过螺紋连接有出气 用管接头。
进一步的, 所述压盖底部中心向上延伸开有上安装槽, 且所述上安装 槽口部倒内圓角, 所述阀杆顶部中心向下延伸开有下安装槽, 所述上弹簧 一端安装在上安装槽内, 另一端安装在下安装槽内;
所述阀杆中部设置有环形体, 所述环形体上部具有锥面, 紧贴所述环 形体的下端面在所述阀杆上开有第二密封垫安装槽, 所述第二密封垫通过 第二密封垫安装槽安装在所述阃杆上, 所述下弹簧套在所述阃杆下部外围, 一端置于所述第三气体通道内, 另一端接触所述第二密封垫的下端面。
本发明的有益效果为: 通过在阀体的出气口处设置单向阀, 当气体流 向为正常流向时, 单向阀开启, 气体顺利的流出; 当出气口出现压力波动 时, 导致气体反向逆流, 此时单向阀关闭, 阻止了气体的逆流, 以使输出 的麻醉气体浓度与设定值一样精确可靠; 具体的说, 单向阀包括单向阀阀 体、 透气板, 两者通过与第一密封垫的配合实现单向阀的开启或关闭, 当 气体流向为正常流向时, 即从第一腔体流向出气口处, 在气体压力的作用 下, 推动第一密封垫向第一气体通道侧移动, 使得第一密封垫与透气板之 间出现缝隙, 气体从透气孔流向第一气体通道, 实现气体的输出; 当气体 反向逆流时, 即从第一气体通道向内流进, 在气体压力的作用下, 使得第 一密封垫贴紧透气板, 进一步使得第一气体通道与出气口阻断, 气体不能 从第一气体通道流进旁通阀内; 通过在阀盖与阀体的接合处设置有双重密 封圈, 加强了阀盖与阀体、 蒸发器之间的气密性; 通过在单向阀阀体与阀 体的接合处、 透气板与阀体的结合处均设置密封圈, 加强了单向阀与阀体 之间的气密性。 对比现有技术, 本发明所述的旁通阀具有能保证气体流向 唯一、 结构简单、 气密性更好的优点。
附图说明
下面根据附图和实施例对本发明作进一步详细说明。
图 1为本发明所述的旁通阀的局部剖视示意图;
图 2为图 1中所示的阀体的剖视示意图;
图 3为图 1中所示的阀盖的剖视示意图;
图 4为图 1中所示的压盖的立体示意图;
图 5为图 1中所示的压盖的剖视示意图;
图 6为图 1中所示的阀杆的立体示意图;
图 7为图 1中所示的阀杆的剖视示意图;
图 8为图 1中所示的单向阀阀体的立体示意图;
图 9为图 1中所示的单向阀阀体的剖视示意图; 图 10为图 1中所示的透气板的立体示意图;
图 11为图 1中所示的透气板的剖视示意图;
图 12为图 1中所示的第一密封垫的立体示意图。
图中:
1、 阀体; 11、 第一腔体; 12、 第二腔体; 13、 第三气体通道; 14、 第 一环形槽; 15、 第二环形槽; 16、 第二凸台; 17、 第一凹槽;
1、 阀盖; 21、 第二气体通道; 22、 第二凸起; 23、 第一凸台; 24、 第 二凹槽; 25、 第三凹槽;
3、 阀芯;
31、 压盖; 311、 第一凸起; 312、 上安装槽; 313、 导向部;
32、 上弹簧;
33、 阀杆; 331、 下安装槽; 332、 环形体; 333、 第二密封垫安装槽;
34、 下弹簧;
35、 第二密封垫;
4、 单向阀;
41、 单向阀阀体; 411、 第一气体通道; 412、 第三环形槽; 413、 限位 凸起;
42、 透气板; 421、 透气孔; 422、 台阶面;
43、 第一密封垫; 431、 圓盘部分; 432、 杆件部分; 433、 限位帽;
5、 密封圈;
6、 管接头。
具体实施方式
如图 1所示, 于本实施例中, 本发明所述的旁通阀, 包括阀体 1, 阀体 1具有进气口和出气口, 在出气口处设置有单向阀 4, 单向阀 4包括单向阀 阀体 41、 透气板 42和第一密封垫 43, 单向阀阀体 41 内部具有输气用第一 气体通道 411, 透气板 42上具有透气孔 421, 透气孔 421与出气口相连通, 第一密封垫 43设置在透气板 42与单向阀阀体 41之间, 第一气体通道 411 与透气孔 421之间通过第一密封垫 43选择性连通, 当气体从出气口向外流 出时, 单向阀 4开启, 第一密封垫 43与透气板 42之间出现缝隙, 以使透 气孔 421 与第一气体通道 411之间连通, 实现气体正常的输出, 当出气口 出现压力波动时, 气体出现逆流现象, 单向阀 4关闭, 第一密封垫 43贴紧 透气板 42, 以使透气孔 421与第一气体通道 411之间阻断, 实现气体不能 逆流入旁通阀。
阀体 1上设置有阀盖 2, 阀盖 2与阀体 1之间设置有阀芯 3, 阀芯 3上 安装有第二密封垫 35,阀芯 3包括由上至下依次相连的压盖 31、上弹簧 32、 阀杆 33、 下弹簧 34。
如图 2所示, 给出了阀体的一个具体实施例, 阀体 1上具有一个与进 气口 (图中未示出)相通的第一腔体 11, 一个与第一腔体 11相通的第二腔 体 12、 第三气体通道 13, 第一腔体 11上部具有内螺紋, 用于螺紋连接阀 盖 2,第二腔体 12及第三气体通道 13用于在该旁通阀未接通蒸发器时输送 气体, 第三气体通道 13位于第一腔体 11的下方, 并与第一腔体 11的底部 相通,对应第三气体通道 13的进口在第一腔体 11的底部设置第二凸台 16, 在出气口处同心的开有两环形槽, 分别为第一环形槽 14和第二环形槽 15, 还设置有第一凹槽 17, 第一环形槽 14用于安装单向阀的透气板 42, 第一 凹槽 17 内部设置密封圈 5, 由于其位于单向阀与旁通阀的接合处, 能起到 加强单向阀与旁通阀之间的气密性的作用。 如图 3所示, 给出了阀盖的一个具体实施例, 阀盖 2釆用中空结构, 使其内部具有第二气体通道 21 , 其底部为第二气体通道 21的出口, 顶部为 第二气体通道 21的进口, 麻醉气体从进口进入, 从出口排出, 对应第二气 体通道 21的出口在阀盖 2底部设置第一凸台 23 ,阀盖 2上部向内具有第二 凸起 22 , 中部设置外螺紋, 位于所述外螺紋的上下两侧在阀盖 2上分别设 置第二 IHJ槽 24和第三 IHJ槽 25 ,第二 IHJ槽 24和第三 IHJ槽 25内均设置有密封 圈 5 , 当阀盖 2安装在阀体 1上时, 位于螺紋连接处上侧的密封圈 5保证了 阀盖 2与蒸发器之间的气密性, 位于螺紋连接处下侧的密封圈 5保证了阀 体 1与阀盖 2之间具有良好的气密性。
如图 1、 4 ~ 7所示, 给出了阀芯的一个具体实施例, 阀芯 3 包括压盖 31、 上弹簧 32、 阀杆 33、 下弹簧 34 , 压盖 31整体呈圓柱形, 其外周均匀 纵切有四直边, 所述直边可使得阃盖 2与压盖 31之间形成气体通道, 并在 直边的中心位置留有圓弧形导向部 313 , 导向部 31 3能使压盖 31在阀盖 1 内部运动足够平稳可靠, 压盖 31上部设置有第一凸起 311 , 底部中心向上 延伸开有上安装槽 312 ,上安装槽 312口部倒内圓角,便于与上弹簧的装配, 阀杆 33的顶部中心向下延伸开有下安装槽 331 ,阀杆 33的中部设置有环形 体 332 , 环形体 332的上部具有锥面, 紧贴环形体 332的下端面在阀杆 33 上开有第二密封垫安装槽 333。
安装时, 将上弹簧 32—端安装在上安装槽 312内, 另一端安装在下安 装槽 331 内, 第二密封垫 35通过第二密封垫安装槽 333安装在阃杆 33上, 下弹簧 34套在阀杆 33的下部外围, 一端置于第三气体通道 1 3内, 另一端 接触第二密封垫 35的下端面,然后将阀芯 3对齐阀盖 1内部,通过压缩上、 下弹簧 32、 34将阀盖 2旋紧在阀体 1上, 通过第一凸起 311与第二凸起 22 相互顶紧, 将压盖 31限制在第二气体通道 21 内, 由于第二气体通道 21与 第三气体通道 13相对设置,第二密封垫 35位于第一凸台 23与第二凸台 16 之间, 当第二密封垫 35向上运动, 并与第一凸台 23顶紧时, 第二气体通 道 21被封堵, 第一腔体 11与第三气体通道 13相连通; 当第二密封垫 35 向下运动, 并与第二凸台 16顶紧时, 第三气体通道 13被封堵, 第一腔体 11与第二气体通道 21相连通。
如图 1、 8 ~ 12所示, 给出了单向阀的一个具体实施例, 单向阀 4安装 在出气口处, 其包括单向阀阀体 41和透气板 42, 单向阀阀体 41 内具有第 一气体通道 411, 在位于第一气体通道 411的进口处开有第三环形槽 412, 第三环形槽内具有若干限位凸起 413,第一气体通道 411的出口处通过螺紋 连接管接头 6, 单向阀阀体 41上还开有螺紋孔, 使其可通过螺钉连接在阀 体 1上;
透气板 42整体呈圓形, 其上开有中心孔, 还具有四个透气孔 421, 透 气板 42外缘环切有台阶面 422, 台阶面 422上设置有密封圈 5;
在透气板 42与单向阀阀体 41之间设置有第一密封垫 43, 第一密封垫 43 包括圓盘部分 431和杆件部分 432, 杆件部分 432设置在圓盘部分 431 的中心处, 且杆件部分 432的长度大于透气板 42的厚度, 可以使杆件部分 432在透气板 42的中心孔中来回运动,为了使第一密封垫 43不脱落透气板 42, 在杆件部分 432的端部设置有限位帽 433, 限位帽 433的外形尺寸大于 中心孔孔径, 并在第三环形槽 412内设置若干限位凸起 413, 以限制圓盘部 分 431的位置。
安装时, 首先将杆件部分 432以及限位帽 433—并穿入到透气板 42的 中心孔, 然后将透气板 42 以及密封圈 5 —并安装在第一环形槽 14 内, 以 使限位帽 433位于第二环形槽 15内, 再将圓盘部分 431与杆件部分 432相 粘接, 在第一凹槽 17内装入密封圈 5, 并使得圓盘部分 431与第三环形槽 412相对应,将单向阀阀体 41通过螺钉紧固在阀体 1上, 由于圓盘部分 431 的外径小于第三环形槽 412 内径, 圓盘部分 431置于第三环形槽 412 内, 当圓盘部分 431贴紧透气板 42时, 其可封堵透气孔 421, 以使出气口与第 一气体通道 411阻断。
本发明所述的旁通阀的工作原理: 如图 1 所示, 图中仅示出了本发明 所述的旁通阀的局部结构, 旁通阀实际具有两个相同的阀盖, 均安装在阀 体上, 阀体内具有两条相互独立的气路, 当未接通蒸发器时, 此时的旁通 阀实际起到一个气体通道的作用, 气体从进气管接头进入阀体, 最终从第 二腔体 12 输出; 当旁通阀接通蒸发器时, 两阀盖均挂接蒸发器, (即一个 蒸发器需同时与两个阀盖配合, 才能实现与旁通阀的连接), 气体从进气管 接头进入阀体内部, 再从第一个阀盖进入蒸发器, 然后从蒸发器经第二个 阀盖再次进入阀体, 最后从出气口处的管接头输出。 其中阀盖上部外围设 计成六方结构, 其主要作用是方便其与阀体之间的装配, (即阀盖外围结构 主要用于与装配工具相配合), 每个旁通阀可同时挂接一个或多个蒸发器。
当未接通蒸发器时, 此时的旁通阀实际起到一个气体通道的作用, 第 二腔体 12即为该气体通道的出气端部分, 压盖 31未被压下, 在下弹簧 34 的弹力作用下, 第二密封垫 35顶紧第一凸台 23, 第二气体通道 21被封堵, 气体从进气口进入到第三气体通道 13, 经过第一腔体 11 进入到第二腔体 12, 再通过旁通阀管道及接头 (图中未示出) 进入麻醉机下游。
当接通蒸发器时, 压盖 31被压下, 以使第二密封垫 35克服下弹簧 34 弹力向下运动, 并与第二凸台 16顶紧, 第三气体通道 13被封堵, 麻醉气 体从第二气体通道 21进入第一腔体 11, 经过第二腔体 12流入出气口, 当 进入到第二环形槽 15 内部时, 气体压力推动第一密封垫 43向右运动, 以 使第一密封垫 43与透气板 42之间出现缝隙, 气体从透气孔 421经该缝隙 流入第三环形槽 412 内, 进而流入第一气体通道 411 内, 并从管接头 6处 输出。
当气体从管接头 6进入第一气体通道 411, 出现逆流现象时, 气体压力 推动第一密封垫 43向左运动, 并使圓盘部分 431贴紧透气板 42, 封堵了透 气孔 421, 以使第一气体通道 411与出气口之间阻断, 气体不能流入阀体 1 内。

Claims

权 利 要 求 书
1、 一种旁通阀, 包括阀体 (1 ), 所述阀体 ( 1 ) 具有进气口和出气口, 其特征在于: 在所述出气口处设置有单向阀 (4 ), 所述单向阀 (4 ) 包括单 向阀阀体(41)、 透气板(42 ) 和第一密封垫 (43 ), 所述单向阀阀体 (41 ) 内部具有输气用第一气体通道( 411 ),所述透气板( 42 )上具有透气孔( 421 ), 所述透气孔(421 ) 与所述出气口相连通, 所述第一密封垫 (43 )设置在透 气板(42) 与单向阀阀体(41 )之间, 所述第一气体通道(411 ) 与透气孔 ( 421 )之间通过第一密封垫 ( 43 ) 选择性连通。
2、 根据权利要求 1 所述的旁通阀, 其特征在于: 所述阀体 ( 1 ) 上设 置有阀盖 (2 ), 所述阀盖 (2 ) 内具有第二气体通道 (21 ), 所述阀体 ( 1 ) 内具有第三气体通道 ( 13)、 一个与进气口相通的第一腔体 ( 11 )、 一个与 第一腔体 ( 11 )相通的第二腔体 ( 12 ), 所述第二腔体 ( 12 )及第三气体通 道 ( 13 ) 用于所述旁通阀在未接通蒸发器时输送气体。
3、 根据权利要求 1所述的旁通阀, 其特征在于: 对应所述出气口在所 述阀体( 1 ) 上设置有台阶环形槽, 分别为第一环形槽 (14 ) 和第二环形槽
( 15 ), 所述透气板(42 ) 安装在所述第一环形槽 (14 ) 内, 紧贴所述透气 板( 42 )的外端面、 通过螺钉将所述单向阀阀体 ( 41 ) 紧固在所述阀体 ( 1 ) 上, 在所述透气板 ( 42 )与所述阀体 ( 1 )的接合处、 所述单向阀阀体 ( 41 ) 与所述阀体 ( 1 ) 的接合处均设置有密封圈 (5)。
4、 根据权利要求 2所述的旁通阀, 其特征在于: 所述第一腔体 ( 11 ) 上部具有内螺紋, 所述阀盖 (2 ) 匹配内螺紋设置有外螺紋, 以使所述阀盖
( 2 ) 螺紋连接在所述阀体( 1 ) 上, 在所述阀盖 ( 2 ) 上环切两凹槽, 且分 别位于所述外螺紋的上、 下两侧, 并在两凹槽内均设置密封圈 ( 5 ), 位于 所述外螺紋上侧的密封圈 ( 5 ) 用于加强所述阀盖 (2 ) 与蒸发器之间的气 权 利 要 求 书
密性, 位于所述外螺紋下侧的密封圈 ( 5 ) 用于加强所述阀盖 (2 ) 与阀体 ( 1 ) 之间的气密性;
所述第三气体通道 ( 13 )设置在所述第一腔体 ( 11 ) 的下方, 并与第 一腔体 ( 11 ) 的底部相通, 以使所述第二气体通道 ( 21 ) 与第三气体通道 ( 13 ) 呈相对设置, 对应所述第二气体通道 (21 ) 的出口在所述阀盖 (2 ) 底部设置第一凸台 (23), 对应所述第三气体通道( 13) 的进口在所述第一 腔体 ( 11 ) 的底部设置第二凸台 ( I6 )。
5、根据权利要求 3所述的旁通阀,其特征在于:在所述单向阀阀体( 41 ) 与透气板 (42 ) 相接的端部处设置有第三环形槽 (412 ), 所述第三环形槽
( 412 ) 与所述第一气体通道(411 )相通;
所述透气板 (42 ) 整体呈圓形, 并在其外缘环切有台阶面 ( 422 ), 用 于安装密封圈, 所述透气板 ( 42 )上具有中心孔,还具有若干透气孔 ( 421 ); 所述透气板 (42 ) 与单向阀阀体 (41 ) 之间设置有第一密封垫 (43), 通过所述第一密封垫(43 )的运动, 实现所述出气口与第一气体通道(411 ) 选择性连通。
6、 根据权利要求 4所述的旁通阀, 其特征在于: 在由所述第二气体通 道 ( 21 )、 第一腔体 ( 11 )、 第三气体通道 ( 13 ) 组成的安装空间内设置有 阀芯( 3 ), 所述阀芯( 3 )上设置有第二密封垫( 35 ), 所述第二密封垫( 35 ) 位于第一凸台 ( 23 ) 与第二凸台 ( I6 ) 之间, 通过所述第二密封垫 ( 35 ) 的上下运动, 实现第一腔体( 11 )与第二气体通道( 21 )、第三气体通道( 13 ) 选择性连通。
7、 根据权利要求 5所述的旁通阀, 其特征在于: 所述第一密封垫(43 ) 包括圓盘部分 ( 431 ) 和杆件部分 ( 432 ), 所述杆件部分 ( 432 )设置在所 权 利 要 求 书
述圓盘部分( 431 )的中心处,所述第一密封垫( 43 )安装在所述透气板( 42 ) 与单向阀阀体( 41 )之间, 以使所述杆件部分( 432 ) 穿过所述中心孔, 且 所述杆件部分( 432 ) 的长度大于所述透气板(42 ) 的厚度, 所述杆件部分 ( 432 ) 外端设置有限位帽 ( 433 ), 以使所述第一密封垫 (43 ) 不脱落于所 述透气板 (42 ), 当所述圓盘部分 ( 431 ) 贴紧所述透气板 ( 42 ) 时, 所述 透气孔 (421 ) 与所述第三环形槽 (412 ) 之间被阻断, 所述出气口与所述 第一气体通道 (411 ) 阻断。
8、 根据权利要求 6 所述的旁通阀, 其特征在于: 所述阀芯 ( 3 ) 包括 由上至下依次相连的压盖 ( 31 )、 上弹簧 ( 32)、 阀杆 ( 33)、 下弹簧( 34 ); 所述压盖 ( 31 ) 上端具有第一凸起( 311 ), 对应所述第一凸起 ( 311 ) 在所述阀盖 ( 2 ) 的上端向内设置有第二凸起 ( 22 ), 所述第二凸起 (22 ) 位于所述第二气体通道 ( 21 ) 的进口处, 通过所述第一凸起 ( 311 ) 与第二 凸起 ( 11 ) 的配合, 将所述压盖 ( ) 限制在所述第二气体通道( 21 ) 内, 所述压盖 ( 31 ) 整体呈圓柱形, 在其外围均勾纵切四直边, 且在直边的中 心位置留有圓弧形导向部 ( 313)。
9、 根据权利要求 7所述的旁通阀, 其特征在于: 所述圓盘部分(431 ) 的外径小于所述第三环形槽 (412 ) 的内径, 所述第三环形槽 (412 ) 内设 置有若干所述圓盘部分的限位凸起(413 ), 所述第三环形槽 (412 ) 与所述 第一气体通道 ( 411 ) 连通, 并在所述第一气体通道 ( 411 ) 的外端部通过 螺紋连接有出气用管接头 ( 6 )。
10、 根据权利要求 8 所述的旁通阀, 其特征在于: 所述压盖 ( 31 )底 部中心向上延伸开有上安装槽 ( 312 ), 且所述上安装槽 ( 312 ) 口部倒内圓 角, 所述阀杆 ( 33 ) 顶部中心向下延伸开有下安装槽 ( 331 ), 所述上弹簧
权 利 要 求 书
( 32) 一端安装在上安装槽 ( 312) 内, 另一端安装在下安装槽 ( 331) 内; 所述阀杆 ( 33) 中部设置有环形体 ( 332 ), 所述环形体 ( 332 ) 上部具 有锥面, 紧贴所述环形体( 332 ) 的下端面在所述阀杆 ( 33) 上开有第二密 封垫安装槽 ( 333 ), 所述第二密封垫 ( 35) 通过第二密封垫安装槽 ( 333 ) 安装在所述阀杆 ( 33) 上, 所述下弹簧 ( 34) 套在所述阀杆 ( 33) 下部外 围, 一端置于所述第三气体通道( 13)内, 另一端接触所述第二密封垫( 35) 的下端面。
PCT/CN2012/087372 2011-12-30 2012-12-25 旁通阀 WO2013097688A1 (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109297115A (zh) * 2018-11-13 2019-02-01 成都昶艾电子科技有限公司 一种高原氧气弥散终端

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104874082B (zh) * 2014-02-28 2018-11-13 北京谊安医疗系统股份有限公司 电磁阀密封片和具有其的呼吸机
CN105841896A (zh) * 2016-03-26 2016-08-10 宁波市宇华电器有限公司 一种钢塑管件密封性能测试装置
CN113827835B (zh) * 2021-09-24 2024-05-28 杨杨 一种新型的医用氧气湿化装置及湿化方法

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB750152A (en) * 1953-03-10 1956-06-13 John Henry Blease An improved valve for use in controlling human respiration
US3795257A (en) * 1972-03-27 1974-03-05 Robertshaw Controls Co Demand valve assembly for use with breathing or resuscitation equipment
CN101584897A (zh) * 2008-05-23 2009-11-25 北京航天长峰股份有限公司 采用气动阀和换向阀的麻醉气路
CN101943279A (zh) * 2009-07-06 2011-01-12 北京谊安医疗系统股份有限公司 单向阀和麻醉机
CN102109052A (zh) * 2009-12-23 2011-06-29 浙江三花制冷集团有限公司 单向阀和过滤器
CN202397935U (zh) * 2011-12-30 2012-08-29 北京谊安医疗系统股份有限公司 医用气控阀
CN202590121U (zh) * 2011-12-30 2012-12-12 北京谊安医疗系统股份有限公司 旁通阀

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2841142A (en) * 1955-03-25 1958-07-01 Air Reduction Anesthetic administering apparatus
US3630197A (en) * 1968-11-29 1971-12-28 Tukiko Hirano Respiratory valve of nonrebreathing type for use in anaesthesia apparatus
US3933171A (en) * 1974-04-09 1976-01-20 Airco, Inc. Anesthesia breathing circuit with positive end expiratory pressure valve
US4121580A (en) * 1977-02-07 1978-10-24 Robertshaw Controls Company Squeeze bag resuscitator with air-oxygen proportionating control
US4274404A (en) * 1979-04-13 1981-06-23 American Safety Flight Systems, Inc. Oxygen supply system controlled by user exhalation
US5002050A (en) * 1986-09-17 1991-03-26 Mcginnis Gerald E Medical gas flow control valve, system and method
GB9101560D0 (en) * 1991-01-24 1991-03-06 Boc Group Plc Fluid delivery system
US5239990A (en) * 1991-05-17 1993-08-31 Delphia John B Snorkel with floating intake valve
US9750905B2 (en) * 2002-02-04 2017-09-05 Fisher & Paykel Healthcare Limited Breathing assistance apparatus
US8522839B2 (en) * 2006-03-06 2013-09-03 Baxter International Inc. Adapters for use with an anesthetic vaporizer
JP5592485B2 (ja) * 2009-06-19 2014-09-17 ピラマル クリティカル ケアー インコーポレイテッド バルブ付レシーバ

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB750152A (en) * 1953-03-10 1956-06-13 John Henry Blease An improved valve for use in controlling human respiration
US3795257A (en) * 1972-03-27 1974-03-05 Robertshaw Controls Co Demand valve assembly for use with breathing or resuscitation equipment
CN101584897A (zh) * 2008-05-23 2009-11-25 北京航天长峰股份有限公司 采用气动阀和换向阀的麻醉气路
CN101943279A (zh) * 2009-07-06 2011-01-12 北京谊安医疗系统股份有限公司 单向阀和麻醉机
CN102109052A (zh) * 2009-12-23 2011-06-29 浙江三花制冷集团有限公司 单向阀和过滤器
CN202397935U (zh) * 2011-12-30 2012-08-29 北京谊安医疗系统股份有限公司 医用气控阀
CN202590121U (zh) * 2011-12-30 2012-12-12 北京谊安医疗系统股份有限公司 旁通阀

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109297115A (zh) * 2018-11-13 2019-02-01 成都昶艾电子科技有限公司 一种高原氧气弥散终端

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