CN110464961A - Fool proof current path switching valve and its oxygen inhalation apparatus - Google Patents
Fool proof current path switching valve and its oxygen inhalation apparatus Download PDFInfo
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- CN110464961A CN110464961A CN201910785793.5A CN201910785793A CN110464961A CN 110464961 A CN110464961 A CN 110464961A CN 201910785793 A CN201910785793 A CN 201910785793A CN 110464961 A CN110464961 A CN 110464961A
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- slid chamber
- arc grooving
- switching
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES 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
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES 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
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/20—Valves specially adapted to medical respiratory devices
- A61M16/201—Controlled valves
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- Multiple-Way Valves (AREA)
Abstract
A kind of fool proof current path switching valve, including the valve body with the first, second access, valve body is provided with access switching mechanism, the first, second path blockade mechanism, when its external magnetic part is unlocked the first, second magnetic lock of the first, second path blockade mechanism, access switching mechanism can switch first/second access；After access switching mechanism selects first/second access, first and/or alternate path locking mechanism and access switching mechanism mutually locking are withdrawn and made to external magnetic part, forms the access that first/second access selects one.By the access of switching air-flow, air-flow is enable to be switched two kinds of accesses of quantitative air-flow or adjustable air-flow, the quantitative current path is able to maintain after operator's setting, and other people are difficult to voluntarily carry out air flow rate adjusting, can effectively avoid maloperation；Its access switching valve for being suitable as oxygen inhalation apparatus, can prevent patient's maloperation and oxygen uptake is excessive, lead to the generation of the complication such as oxygen poisoning.
Description
Technical field
The present invention relates to medical instruments fields, and in particular to a kind of fool proof current path switching valve, and be mounted with
The oxygen inhalation apparatus of the switching valve.
Background technique
Oxygen uptake is the method for clinically used reduction of patient anoxic, and appropriately oxygen intake is conducive to improve arterial blood oxygen
The level of pressure and oxygen saturation promotes metabolism, is one of the important method for assisting in the treatment of a variety of diseases.The confession of Hospitals at Present mainstream
Oxygen system be central oxygen supplying system, hospital bed terminal setting oxygen supply export be transmitted with constant oxygen supply pressure and oxygen-supplying amount, and
And to cope with a variety of medical conditions, the oxygen supply outlet of hospital bed terminal setting needs to maintain the oxygen-supplying amount of higher level；And to normal
When the patient of the slight hypoxia, II respiratory failure type seen carries out every-day medical nursing, it is typically required and adjusts oxygen-supplying amount reasonable
In the range of, it is advisable with 1-2L/min, and be within this range suitable for increase and decrease according to patient age, health status；Partially urgent feelings
It under condition, when counterweight degree anoxic patient such as being needed to carry out Emergency Oxygen Supply, then needs in a short time, quickly adjusts oxygen-supplying amount in 4-
The throughput range of 6L/min.
Oxygen supply pressure and oxygen-supplying amount to export oxygen supply reach controllable state, it will usually plug into oxygen supply outlet with tide
Change the oxygen inhalation apparatus of bottle, to reach the effect of oxygen flow adjusting and oxygen flow humidifying；Also, such oxygen is inhaled at present
Entering the regulating valve that device has is accidentally touching device in the air, and adjustment process is relatively convenient.This is convenient for medical staff's operation
Meanwhile patient equally can freely and advantageously oxygen flow is adjusted.
But patient is since knowledge is limited, therefore the soakage that often will mistakenly believe that raising oxygen can be more advantageous to hypoxic conditions
Alleviation, rehabilitation, and uncomplaisance, blindly without limitation oxygen uptake；After the oxygen of long-time sucking high concentration, occur instead
Inhibit the complication such as to aggravate, cough, have difficulty in breathing when breathing, oxygen poisoning, breastbone discomfort and pain, air-breathing, compromises body instead
Body health.
Summary of the invention
The purpose of the present invention is to provide a kind of fool proof current path switching valves, can pass through the logical of switching air-flow
Road enables air-flow to be switched two kinds of accesses of quantitative air-flow or adjustable air-flow, and is able to maintain this after operator's setting
Quantitative current path, and other people are difficult to voluntarily carry out air flow rate adjusting, can effectively avoid maloperation.
To achieve the above object, the present invention is implemented using following technological means:
A kind of fool proof current path switching valve, including the valve body with the first, second access, valve body is provided with logical
Road switching mechanism, the first, second path blockade mechanism, by external magnetic part to the first, second path blockade machine
When first, second magnetic lock of structure is unlocked, access switching mechanism can switch first/second access；Access switching
After mechanism selects first/second access, external magnetic part withdraw and make first and/or alternate path locking mechanism and access switch
Mechanism mutually locking forms the access that first/second access selects one.
Further, it is provided with the airtight block piece of access for separating the first, second access on the access switching mechanism, leads to
Road switching mechanism drives access of the airtight block piece of access in valve body to switch road and moves by operating rod, until formation first/
Alternate path selects one access.Preferably, the operating rod is pressed through first, second body of rod is opposite to the airtight block piece of access
Locking is formed.
Further, the operating rod is epitaxially formed switching swing rod to valve body side wall, in the switching swing rod
Section is provided with the airtight block piece of switching port of hermetic closed valve body switching port.
Further, the operating rod both ends are corresponding is separated to form first, second through the first, second annular arc grooving
Head；The first, second path blockade mechanism is symmetrically disposed on valve body left and right side, and path blockade mechanism includes having
The locking mechanism ontology of slid chamber；First head is located at the first slid chamber to the first annular arc grooving to protruding into the first slid chamber
Interior, the first annular arc grooving is locked by the first magnetic lock in the first slid chamber；Second head is to protruding into the second sliding
Intracavitary to be located in the second slid chamber to the second annular arc grooving, the second annular arc grooving is by the second magnetic lock in the second slid chamber
Determine part to be locked.
Further, the first head can correspond to when protruding into bosom in the first slid chamber, the first annular arc grooving inside edge
It is flushed with the opening inner wall of the first slid chamber；Second head can correspond to when protruding into the second slid chamber bosom, and the second annular arc is cut
Slot inside edge is flushed with the opening inner wall of the second slid chamber, and operating rod both ends are corresponding to be set up in the first, second slid chamber opening.
Further, the first annular arc grooving includes the first inner annular arc grooving, the first outer ring-like arc grooving, institute
The the second annular arc grooving stated includes the second inner annular arc grooving, the second outer ring-like arc grooving；The first head correspondence is stretched
When entering bosom in the first slid chamber, the first inner annular arc grooving inside edge is flushed with the opening inner wall of the first slid chamber, simultaneously
Second outer ring-like arc grooving inside edge is flushed with the opening inner wall of the second slid chamber；Second head correspondence protrudes into the second slid chamber
When bosom, the second inner annular arc grooving inside edge is flushed with the opening inner wall of the second slid chamber, while the first outer ring-like arc is cut
Slot inside edge is flushed with the opening inner wall of the first slid chamber.
Further, it includes the first, second spring that first, second magnetic lock is corresponding, can be attracted magnetically
The first, second ring set, the first, second bead part that can be attracted magnetically；First spring, the first ring set, the first bead part, with
And second spring, the second ring set, the second bead part correspondence successively can not be set to from the outside to the core and with skidding off the first, second sliding
Intracavitary, the opening inner wall setting of the first, second slid chamber is in the convergence shape shunk to opening；First spring, the first ring set, and
Second spring, the second ring set are corresponding in turn to the first, second head of fitting from the outside to the core；External magnetic part attracts first and/or the
The corresponding compression first of two ring sets and/or second spring, and keep the first and/or second bead part corresponding and the first and/or second ring
Shape arc grooving mutually unlocks；When external magnetic part is withdrawn, the first, second spring reset elapses the first, second ring set, make first,
Second ring set suppresses the first, second bead part, and the first and/or second bead part the first and/or second annular arc of corresponding locking is cut
Slot.
Preferably, the opening inner wall of the first, second slid chamber may be configured as the convergence of the cambered surface or inclined-plane shunk to opening
Shape.
Preferably, the first, second damping head is correspondingly arranged in the end of the first, second head.
As a kind of effective plan of establishment, the valve body forms the first access to first outlet by entrance, leads to
It crosses entrance and forms alternate path to second outlet.
As a kind of effective plan of establishment, the first, second path blockade mechanism is removably airtight to be locked in
Valve body two sides.
The present invention also provides a kind of oxygen inhalation apparatuses, and it is logical to carry out air-flow using fool proof current path switching valve
Road switching, the passable throughput of the first, second access is inconsistent, and selects one in the first, second access and be provided with throughput
Regulating valve, another way are quantitative access.
Further, it described first, second is shunted by the first, second runner of current divider, the air-flow
Adjustable valve is selected one and is set on the first/second runner of current divider.
The present invention at least has following usefulness:
1. fool proof current path switching valve is by external magnetic part, to the first of the first, second path blockade mechanism,
When second magnetic lock is unlocked, access switching mechanism can switch first/second access, and external magnetic part is withdrawn
Afterwards, can make first/second path blockade mechanism and access switching mechanism mutually locking, formed first/second access select one it is logical
Road is plugged into the first, second access to external quantitative access, adjustable access by the switching of said flow access, can
It realizes that air-flow is quantitative, the adjustable switching of air-flow, and under the intervention of no external magnetic part, cannot achieve the first, second access
Switching prevents from accidentally touching and switched path so as to effective operator；
2. the fool proof current path switching valve is particularly suitable as the switching valve of oxygen inhalation apparatus, in the auxiliary of current divider
Under, the access of oxygen flow is allowed hand over, air-flow is enable to be adjusted to quantitative oxygen supply, or two accesses of oxygen supply are adjusted, and
It is able to maintain required destination path after medical staff's setting, and patient can not voluntarily carry out air flow rate adjusting, relative to existing
The design of oxygen inhalation apparatus can effectively avoid patient because adjusting oxygen-supplying amount accidentally or specially, make because oxygen-supplying amount is too low or excessively high
At ill symptoms；And medical staff can stablize in the case where being equipped with external magnetic part, rapidly realize first, second
The switching of access, without the treatment because influencing patient under emergency.
3. the present apparatus quantitative, adjustable handoff functionality of air-flow by pure mechanic structure completion air-flow, the structures such as no solenoid valve,
So there is no need to electric current intervention, so as to the steam for effectively avoiding the wetting bottle of oxygen inhalation apparatus from generating, to needing the bad of electrical component
It influences, and has prevented the risk of steam conduction.
Detailed description of the invention
Fig. 1 is the schematic diagram that 1 first access of the embodiment of the present invention forms access；
Fig. 2 is the diagrammatic cross-section of 1 unlocking process of the embodiment of the present invention；
Fig. 3 is the schematic diagram that 1 alternate path of the embodiment of the present invention forms access；
Fig. 4 is the schematic diagram that the embodiment of the present invention 1 is applied to oxygen inhalation apparatus；
Fig. 5 is the diagrammatic cross-section of 2 first path blockade mechanism and alternate path locking mechanism unlocked state of the embodiment of the present invention；
Fig. 6 is the schematic diagram that 2 first access of the embodiment of the present invention forms access；
Fig. 7 is the schematic diagram that 2 alternate path of the embodiment of the present invention forms access；
Fig. 8 is the decomposition state schematic diagram of the members of 2 access switching mechanism of the embodiment of the present invention.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
As shown in Figs 1-4, a kind of fool proof current path switching valve, including the valve sheet with the first, second access
Body 3, valve body 3 are provided with access switching mechanism 4, the first, second path blockade mechanism (1,2).
Whole valve body 3 is in a column, and entrance A, first outlet B1, second outlet B2 are arranged on side wall, and
3 center of inside of valve body is provided with the access switching road 31 of connection entrance A, first outlet B1, second outlet B2；Access switching machine
Structure 4 drives access of the airtight block piece 42 of access in valve body 3 to switch road 31 and moves by operating rod 41.By using access
Air-tight gasket is separated the first, second access as the airtight block piece 42 of access, and air-flow can be made to cut through entrance A entering path
After lane-change 31, the access that the first access or alternate path select one is formed；Also, 41 both ends of operating rod are corresponding through first, second
Annular arc grooving (413,414) is separated to form the first, second head (411,412)；Operating rod 41 is to 3 side wall extension of valve body
Switching swing rod 43 is formed, switching 43 middle section of swing rod is provided with the airtight block piece 44 of switching port of hermetic closed 3 switching port of valve body.
First, second path blockade mechanism (1,2) is symmetrically disposed on 3 left and right side of valve body, first path blockade in left side
Mechanism 1 includes first locking mechanism ontology 10 and the first magnetic lock with the first slid chamber 101；First magnetic lock
Determine 12, two part i.e. the first spring 11, the first ring set the first bead parts 13, is successively set to the first slid chamber 101 from the outside to the core
It is interior, and the opening inner wall setting of the first slid chamber 101, in the convergent arc surfaced that is open, it is sliding that the first head 411 protrudes into first
The opening that chamber 101 is open and blocks the first slid chamber 101 is moved, and makes 413 inside edge of the first annular arc grooving and the first slid chamber
101 opening inner wall flushes, and the first spring 11, the first ring set 12 are sheathed on the first head 411, and two the first bead parts 13 are located at
First head two sides, therefore prevent the first spring 11, the first ring set 12, the first bead part 13 from the opening of the first slid chamber 101
It skids off；Corresponding, the alternate path locking mechanism 2 on right side includes the second locking mechanism ontology 20 with the second slid chamber 201,
And second magnetic lock；22, two second magnetic lock, that is, second spring 21, the second ring set the second bead parts 23, according to
It is secondary to be set in the second slid chamber 201 from the outside to the core, and the opening inner wall setting of the second slid chamber 201 is in convergent to being open
Arc surfaced, the second head 412 protrude into the opening that the second slid chamber 201 is open and blocks the second slid chamber 201, and make the second ring-type
414 inside edge of arc grooving is flushed with the opening inner wall of the second slid chamber 201, and second spring 21, the second ring set 22 are sheathed on second
Head 412, two the second bead parts 23 are located at 412 two sides of the second head, therefore prevent second spring 21, the second ring set 22,
The opening of two bead parts 23 from the second slid chamber 201 skids off.Also, above-mentioned the first, second ring set (12,22) and first,
Second bead part (13,23) is that can be attracted magnetically, it is preferred that rust-proof coating can be plated on its surface, to play antirust
Effect；Furthermore another preferred embodiment is that the magnetic magnetic core of tool can be arranged inside it, with improve external magnetic part to first,
The magnet effect of second ring set (12,22) and the first, second bead part (13,23).
As shown in Figs. 1-2, need to carry out the first path blockade mechanism 1 in lock state with former first path blockade mechanism 1
Unlock for, be placed in the external magnetic part of ring shape outside first locking mechanism ontology 10 as tripper, due to magnetic
Power effect, attracts the first ring set 12 and the first bead part 13, and correspondence moves outward and compress the first spring 11, from
And the first bead part 13 and the first annular arc grooving 413 are unlocked, simultaneously because the second annular arc grooving 414 is located at the second sliding
It outside the opening of chamber 201, is not locked by the second magnetic lock, therefore freely adjustable state is presented in operating rod 41；
As Figure 2-3, it when needing to switch to alternate path formation breakthrough status, adjusts switching swing rod 43 and is cut along valve body 3
It changes mouth to move to the right, keeps the first head 411 mobile toward 201 direction of the second slid chamber, until the first annular arc grooving 413 is located at the
Outside one slid chamber 101；At the same time, the second head 412 is slided along the opening of the second slid chamber 201, until the second annular arc grooving
414 are located in the second slid chamber 201, since the opening inner wall of the second slid chamber 201 is in the convergent arc surfaced of being open and the
Two springs 21 keep the second ring set 22 of passage, so that the second ring set 22 is suppressed the second bead part 23, therefore the second bead part 23 can be along the
The opening inner wall of two slid chambers 201 slides and engages the second annular arc grooving 414, so that operating rod 41 be made to be locked；And
At this point, operating rod 41 drives the airtight block piece 42 of access to be moved to right side, entrance A and second outlet B2 is made to form alternate path,
And first outlet B1 is closed by the airtight block piece 42 of access at this time, can not form the first access；And the first, second head (411,
412) the corresponding opening for being set up in the first, second slid chamber (101,201) is maintained, so that operating rod 41 is in adjustment process
It is whole to maintain to stablize；Preferably, setting the first, second spring (11,21) resets passage the first, second ring set (12,22), until the
One, in the state of corresponding fitting the first, second slid chamber (101,201) the opening inner side wall of the second bead part (13,23), first,
The corresponding depth X at a distance from the first, second slid chamber (101,201) lateral wall of second ring set (12,22) is set as 1.5-
2.5cm, and when material of the use ndfeb magnet as external magnetic part, can play can attract only with ndfeb magnet
The corresponding compression the first, second spring (11,21) of first, second ring set (12,22), and make simultaneously the first, second bead part (13,
23) attracted by ndfeb magnet, reach the effect of the first, second path blockade mechanism (1,2) unlock；And it is magnetic lower general
Logical magnet is difficult to attract the first, second ring set (12,22) corresponding compression the first, second spring (11,21), thus make first, the
Two bead parts (13,23) are corresponding to be maintained to lock with the first, second annular arc grooving (413,414), further decreases the switching valve
A possibility that being misunderstood lock；
Likewise, as shown in Figs. 1-2, switching swing rod 43 will be stirred under unlocked state when moving to the left along 3 switching port of valve body,
It can make the second head 412 that can correspond to mobile to 101 direction of the first slid chamber, until the second annular arc grooving 414 is located at the second sliding
Outside chamber 201；At the same time, the first head 411 is slided along the opening of the first slid chamber 101, until the first annular arc grooving 413 is located at
In first slid chamber 101, the first bead part 13 engages the first annular arc grooving 413, the first access path blockade mechanism shape at this time
At lock state；Simultaneously at this time, operating rod 41 drives the airtight block piece 42 of access to be moved to left side, makes entrance A and first outlet
B1 forms the first access；And second outlet B2 is closed by the airtight block piece 42 of access at this time, can not form alternate path；
As shown in Figure 1, being moved to the left with stirring switching swing rod 43 along 3 switching port of valve body, formed for the first access, outside
In the state that portion's magnetic part is withdrawn, the correspondence of second spring 21 is resetted, the second ring set 22 the second bead part 23 of corresponding passage to
The opening of second slid chamber 201 is mobile；At this point, since the second annular arc grooving 414 is located at outside the second slid chamber 201, two
Two bead parts 23 are elapsed by the second ring set 22 to the opening inner wall for being adjacent to the second slid chamber 201 and the second head 412, and because of the
Two heads 412 still keep the closing of the opening to the second slid chamber 201, therefore second spring 21, the second ring set 22, the second bead
Part 23 is still maintained in the second slid chamber 201.
As shown in figure 4, the fool proof current path switching valve is in use, by pipeline or can plug into entrance A
Head docking is to external air supply opening, and first outlet B1 is engageable to the first pipeline for being equipped with air-flow adjustable valve 51, and second
Outlet B2 is engageable to be conveyed respectively to the second pipeline without regulating valve, to reach the adjustable airflow channel of switching and quantitative
The effect of airflow channel；Also, in the case where operator does not have external magnetic part, which can not be unlocked,
So as to avoid the generation of maloperation.
The present invention also provides the fool proof current path switching valve in central oxygen supplying system to oxygen inhalation apparatus
Oxygen supply adjusts application.The fool proof current path switching valve can be installed to commercially available buoy type oxygen absorber (such as pellet
Prestige XY-02A buoy type oxygen absorber) in, to provide quantitative oxygen supply/adjustable oxygen supply use of false-touch prevention to patient.
As shown in Figure 1-3, the bore of the first outlet B1 of setting valve body 3 is less than second outlet B2, thus switching simultaneously
When selecting first access of selection, alternate path, in the unit time, the oxygen flow that oxygen is flowed out through the first access, relative to
Two accesses are lesser.As shown in figure 4, a current divider 50 of plugging at the first, second outlet B2, first point of the current divider 50
Inflow entrance C1 and the second split entry C2 is separated from each other by partition 52, and is mutually converged in the outlet of current divider 50, i.e., first point
Inflow entrance C1 is to 50 export mixes of current divider first runner, the second split entry C2 to 50 export mixes of current divider second
Road.
First split entry C1 and first outlet B1 is mutually plugged into, enables the oxygen of the first access through first runner stream
Out；And the second split entry C2 and second outlet B2 mutually plugs into, and the oxygen of alternate path is enable to flow out through second flow channel, and
And setting adjusts the air-flow adjustable valve 51 of air flow rate in second flow channel.
As shown in figure 4, the connection-peg 61 of the oxygen inhalation apparatus is plugged to central oxygen supplying system as oxygen main entrance D1
Each hospital bed terminal oxygen supply outlet, the outlet D2 of oxygen inhalation apparatus plug into the entrance A of fool proof current path switching valve.When
When carrying out quantitative oxygen supply, the first access can switch to；And when carrying out adjustable oxygen supply, then switch to alternate path.
Also, to the first outlet B1 of the switching valve carry out bore adjustment, when flow out oxygen through the first access, oxygen-supplying amount for no more than
The quantitative air-flow of 2L/min (is actually needed according to patient and sets, as child patient is with 1.2L/min, adult patient 1.8L/min
Preferably).Also, since air-flow adjustable valve 51 is located at the back segment of switching valve, therefore when switching to the first access, oxygen is logical through first
The outflow of road direction first runner, no matter how air-flow adjustable valve 51 is adjusted, and will not cause the variation of oxygen-supplying amount；And patient exists
In the case where not having external magnetic part, the first path blockade mechanism 1 can not be unlocked with access switching mechanism 4, therefore tieed up
Quantitative oxygen supply process stability is held；Since buoy type oxygen absorber has been provided with buoy oxygen flow indicator 62, that is, pass through
Instruction pearl 621 in Fig. 4 indicates current oxygen flow.When flowing out through the first access to first runner, patient is adjusting air-flow
After adjustable valve 51, oxygen-supplying amount it is corresponding without significant change when, be notified that medical staff comes inquiry, is also convenient for medical staff at this time
Related medical instruction is popularized to patient；Certainly, when commercially available other do not have the oxygen inhalation system of oxygen flow indicator formula
(as directly plugged into disposable vaporizer), does not influence the above-mentioned progress quantitatively supplied oxygen equally.
And when carrying out adjustable oxygen supply, switch to alternate path, at this point, due to oxygen through alternate path to current divider
50 outlet outflows, therefore can be as needed, the corresponding air-flow adjustable valve 51 adjusted in second flow channel to required oxygen-supplying amount, so as to
In reply part emergency.Also, (especially external magnetic part is set as ring shape quilt in the case where having external magnetic part
The plan of establishment entrained by medical staff), it can be and complete to the first path blockade mechanism 1 and 4 quick release of access switching mechanism
Switching at from the first access to alternate path, operating process are convenient, quick, reliable.
Embodiment 2
As an improvement, as viewed in figures 5-8, in the present embodiment, be arranged the operating rod 41' of access switching mechanism 4 ' by first,
Second body of rod correspondence is composed, specifically, the base portion of first body of rod is provided with the first body of rod pedestal 491', and switching swing rod
43 ', switching 43 ' middle section of swing rod is provided with the airtight block piece 44 ' of switching port of hermetic closed 3 ' switching port of valve body, the airtight gear of access
The medium pore 421' of part 42' is sheathed on the first body of rod locking column 493', and presses the first body of rod pedestal 491'；Second body of rod
Base portion is correspondingly arranged on the second body of rod pedestal 492', when the second body of rod locking column 494' and the first body of rod locking column 493' phase are interlocked
After fixed, the first body of rod pedestal 491' and the second two sides body of rod pedestal 492' clamping access airtight block piece 42' can effectively access gas
Crammed part 42' fixed stable degree；Also, the end of the corresponding first head 411' of first body of rod is provided with the first damping head
417', corresponding, the end of the corresponding second head 412' of second body of rod is provided with the second damping head 418'；
In addition, the first annular arc grooving being arranged on first body of rod includes the first inner annular arc grooving 413', the first outer ring
Shape arc grooving 415'；And the second annular arc grooving being arranged on second body of rod includes the second inner annular arc grooving 414', second
Outer ring-like arc grooving 416'.
First, second body of rod is composed operating rod 41', replaces the operating rod 41 of embodiment 1, with to reality
In the switching valve for applying example 1, and it is corresponding by the first, second path blockade mechanism (1', 2') of the corresponding direction of first, second body of rod, such as
Shown in Fig. 5-7, when the first head 411' is corresponding protrudes into bosom in the first slid chamber 101', the first inner annular arc grooving 413'
Inside edge is flushed with the opening inner wall of the first slid chamber 101', while the second outer ring-like arc inside edge grooving 416' and the second sliding
The opening inner wall of chamber 102' flushes；When second head 412' correspondence protrudes into bosom in the second slid chamber 102', the second inner annular
The arc inside edge grooving 414' is flushed with the opening inner wall of the second slid chamber 102', while the first inside edge outer ring-like arc grooving 415'
It is flushed with the opening inner wall of the first slid chamber 101'.
As shown in fig. 6, when the plan of establishment using the present embodiment, when forming the first access, the first head 411' at this time
Bosom in the first slid chamber 101' is stretched to, and due to the first inner annular arc inside edge grooving 413' and the first slid chamber
The opening inner wall of 101' flushes, the first spring 11' elapse the first ring set 12', make the first ring set 12' elapse the first bead part to
First inner annular arc grooving 413' is mutually clamped, so that operating rod 41' be made to be locked by the first path blockade mechanism 1'；Together
When, the setting that the second outer ring-like arc inside edge grooving 416' is flushed with the opening inner wall of the second slid chamber 102', so that the second bullet
Spring 21' elapses the second ring set 22', the second ring set 22' and elapses the second bead part again, until the second bead part is cut with the second outer ring-like arc
Slot 416' is mutually clamped, and operating rod 41' is locked by alternate path locking mechanism 2' simultaneously.That is entrance A ' and first outlet
B1 ' forms the first access, and second outlet B2 ' is closed by the airtight block piece 42' of access at this time, can not form alternate path.
To sum up, the plan of establishment of the present embodiment only needs the mode of the unilateral unlock of an external magnetic part 5 relative to embodiment 1,
The present embodiment is needed when restoring unlocked state using two external magnetic part 5', while in the left and right sides, while corresponding attracting the
One, the second ring set (12', 22') is corresponded to along the first, second head (411', 412') outside side slip, and corresponding compression first,
Second spring (11', 21'), while attract the first, second bead part by the two external magnetic part 5' correspondence of the left and right sides,
It can be only achieved such as Fig. 5, operating rod 41' is able to freely along the adjustable state of access switching road 31' or so sliding.Therefore phase
For embodiment 1, fool proof effect can be promoted further.
Certainly, in the unlocked state, switching swing rod 43' is stirred, the second head 412' is dialed to and protrudes into the second slid chamber
Bosom in 102', the second inner annular arc inside edge grooving 414' is flushed with the opening inner wall of the second slid chamber 102' at this time, together
When the first outer ring-like arc inside edge grooving 415' flushed with the opening inner wall of the first slid chamber 101', remove the outside of left and right ends
Magnetic part 5', the first, second spring (11', 21') reset corresponding passage the first, second ring set (12 ', 22 '), and first, second
Bead part is elapsed by the first, second ring body to the opening inner wall of slid chamber, and is slided along to the arc surfaced inner wall of opening convergence shape,
The first outer ring-like arc grooving 415' is fastened to the first bead part, the second bead part fastens the second inner annular arc grooving 414 ', at this point,
Completing the state for forming alternate path as shown in Figure 7, i.e. entrance A ' and second outlet B2 ' form alternate path, and at this time the
One outlet B1 ' is closed by the airtight block piece 42' of access, can not form the first access.
Also, during switching current path, when the end of first, second body of rod, corresponding press first, second is sliding
When the bottom of dynamic chamber, the setting of the first, second damping head (417', 418') can correspond to and play certain damping sense, and effectively drop
Collision of low first, second body of rod end to the first, second sliding cavity.
In addition, when the switching valve is plugged into oxygen wetting bottle 622, since wetting bottle 622 is to can be into after the humidifying of oxygen
Enter in switching valve, to avoid influence of the oxygen after humidifying to the first, second path blockade mechanism (1', 2'), settable first,
Second locking mechanism baffle (321', 322')；By the first, second locking mechanism baffle (321', 322') it is corresponding be sheathed on first,
Second body of rod, and make the opening of the first, second locking mechanism baffle (321', 322') the first, second sliding cavity of closing, it can be effective
Oxygen after reducing humidifying enters in the first, second sliding cavity.
The present embodiment has also carried out further improvement to the structure of switching valve, and the setting both ends valve body 3' connect in screw thread
Mouthful, and set the connector of the first, second locking mechanism ontology (10', 20') to and valve body 3' hickey pairing structure.
By above-mentioned setting, the first, second path blockade mechanism (1', 2') with valve body 3' mutually locking, and can separably prevent
Only air-flow is overflowed from valve body 3' and the interface of the first, second path blockade mechanism (1', 2'), can be just by the setting
In the replacement of the first, second path blockade mechanism (1', 2'), meanwhile, production cost, the installation cost of the switching valve are available to be had
The reduction of effect.
Finally it should be noted that the above embodiments are only used to illustrate and not limit the technical solutions of the present invention, although reference
Above-described embodiment describes the invention in detail, it will be appreciated by those skilled in the art that can still carry out to the present invention
Modification or equivalent replacement should all cover at this without departing from the spirit or scope of the invention, or any substitutions
In the scope of the claims of invention.
Claims (11)
1. a kind of fool proof current path switching valve, including the valve body with the first, second access, valve body is provided with
Access switching mechanism, the first, second path blockade mechanism, it is characterised in that: by external magnetic part to described first, second
When first, second magnetic lock of path blockade mechanism is unlocked, it is logical that access switching mechanism can switch first/second
Road；After access switching mechanism selects first/second access, external magnetic part is withdrawn and makes first and/or alternate path locking machine
Structure and access switching mechanism mutually locking form the access that first/second access selects one.
2. fool proof current path switching valve as described in claim 1, which is characterized in that the access switching mechanism
On be provided with separate the first, second access the airtight block piece of access, access switching mechanism by operating rod drive access it is airtight
Access switching road of the block piece in valve body moves, until forming the access that first/second access selects one.
3. fool proof current path switching valve as claimed in claim 2, which is characterized in that the operating rod is to valve
This body sidewall is epitaxially formed switching swing rod, and the switching swing rod middle section is provided with the switching port of hermetic closed valve body switching port
Airtight block piece.
4. fool proof current path switching valve as claimed in claim 2, which is characterized in that the operating rod both ends
It is corresponding to be separated to form the first, second head through the first, second annular arc grooving；The first, second path blockade mechanism pair
Title is set to valve body left and right side, and path blockade mechanism includes the locking mechanism ontology with slid chamber；First head is to protruding into
It is located in the first slid chamber in first slid chamber to the first annular arc grooving, the first annular arc grooving is by the in the first slid chamber
One magnetic lock is locked；Second head is located at the second slid chamber to the second annular arc grooving to protruding into the second slid chamber
Interior, the second annular arc grooving is locked by the second magnetic lock in the second slid chamber.
5. fool proof current path switching valve as claimed in claim 4, which is characterized in that the first head can be corresponded to and be protruded into
In first slid chamber when bosom, the first annular arc grooving inside edge is flushed with the opening inner wall of the first slid chamber；Second head
It can correspond to when protruding into the second slid chamber bosom, the second annular arc grooving inside edge is flushed with the opening inner wall of the second slid chamber,
Operating rod both ends are corresponding to be set up in the first, second slid chamber opening.
6. fool proof current path switching valve as claimed in claim 5, which is characterized in that first annular arc is cut
Slot includes the first inner annular arc grooving, the first outer ring-like arc grooving, and the second annular arc grooving includes the second inner annular arc
Grooving, the second outer ring-like arc grooving；When the first head correspondence protrudes into bosom in the first slid chamber, the first inner annular arc
Grooving inside edge is flushed with the opening inner wall of the first slid chamber, while the second outer ring-like arc grooving inside edge and the second slid chamber
Opening inner wall flushes；Second head is corresponding when protruding into bosom in the second slid chamber, the second inner annular arc grooving inside edge and the
The opening inner wall of two slid chambers flushes, while the first outer ring-like arc grooving inside edge is flushed with the opening inner wall of the first slid chamber.
7. the fool proof current path switching valve as described in claim 4-6 any one, which is characterized in that described
Corresponding first, second magnetic lock includes the first, second spring, and the first, second ring set that can be attracted magnetically can be magnetic
The the first, second bead part attracted；First spring, the first ring set, the first bead part and second spring, the second ring set, second
Bead part correspondence can not be successively set to from the outside to the core and with skidding off in the first, second slid chamber, and the first, second slid chamber is opened
Mouth inner wall setting is in the convergence shape shunk to opening；First spring, the first ring set and second spring, the second ring set are certainly export-oriented
Inside it is corresponding in turn to the first, second head of fitting；External magnetic part attract the corresponding compression first of the first and/or second ring set and/or
Second spring, and unlock the first and/or second bead part correspondence mutually with the first and/or second annular arc grooving；External magnetic
Property part when withdrawing, the first, second spring reset elapses the first, second ring set, and the first, second ring set is made to suppress the first, second pearl
Body part, the first and/or second bead part the first and/or second annular arc grooving of corresponding locking.
8. the fool proof current path switching valve as described in claim 1-6 any one, which is characterized in that described
Valve body forms the first access to first outlet by entrance, forms alternate path to second outlet by entrance.
9. the fool proof current path switching valve as described in claim 1-8 any one, which is characterized in that described
First, second path blockade mechanism is removably airtight to be locked in valve body two sides.
10. a kind of oxygen comprising the fool proof current path switching valve as described in claim 1-8 any one is inhaled
Enter device, it is characterised in that: the passable throughput of the first, second access is inconsistent, and selects one in the first, second access
It is provided with air-flow adjustable valve, another way is quantitative access.
11. a kind of oxygen inhalation apparatus as claimed in claim 10, it is characterised in that: described first, second passes through current divider
The first, second runner shunted, the air-flow adjustable valve is selected one and is set on the first/second runner of current divider.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910785793.5A CN110464961B (en) | 2019-08-23 | 2019-08-23 | Anti-misoperation air flow passage switching valve and oxygen inhaler thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910785793.5A CN110464961B (en) | 2019-08-23 | 2019-08-23 | Anti-misoperation air flow passage switching valve and oxygen inhaler thereof |
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| Publication Number | Publication Date |
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| CN110464961A true CN110464961A (en) | 2019-11-19 |
| CN110464961B CN110464961B (en) | 2021-09-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910785793.5A Active CN110464961B (en) | 2019-08-23 | 2019-08-23 | Anti-misoperation air flow passage switching valve and oxygen inhaler thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111467633A (en) * | 2020-04-16 | 2020-07-31 | 吉林大学 | Oxygen therapy mask for nursing department capable of realizing adjustment of oxygen flow rate |
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| CN2048921U (en) * | 1989-03-31 | 1989-12-06 | 天津市中环自动化仪表公司 | Manual integrated ball check for tri-valve set |
| CN2586858Y (en) * | 2002-11-12 | 2003-11-19 | 张陈亮 | Magnetic control valve |
| CN201106690Y (en) * | 2007-07-16 | 2008-08-27 | 浙江盾安华强机械有限公司 | Magnetic induction gate valve with lock |
| CN101360942A (en) * | 2006-03-20 | 2009-02-04 | 旭有机材工业株式会社 | Rotary valve |
| CN101387354A (en) * | 2008-11-03 | 2009-03-18 | 董服义 | Flow adjustable lock valve with hidden lockset |
| JP2010151264A (en) * | 2008-12-25 | 2010-07-08 | Aisin Aw Co Ltd | Solenoid valve |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2048921U (en) * | 1989-03-31 | 1989-12-06 | 天津市中环自动化仪表公司 | Manual integrated ball check for tri-valve set |
| CN2586858Y (en) * | 2002-11-12 | 2003-11-19 | 张陈亮 | Magnetic control valve |
| CN101360942A (en) * | 2006-03-20 | 2009-02-04 | 旭有机材工业株式会社 | Rotary valve |
| CN201106690Y (en) * | 2007-07-16 | 2008-08-27 | 浙江盾安华强机械有限公司 | Magnetic induction gate valve with lock |
| CN101387354A (en) * | 2008-11-03 | 2009-03-18 | 董服义 | Flow adjustable lock valve with hidden lockset |
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| CN111467633A (en) * | 2020-04-16 | 2020-07-31 | 吉林大学 | Oxygen therapy mask for nursing department capable of realizing adjustment of oxygen flow rate |
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|---|---|
| CN110464961B (en) | 2021-09-03 |
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