CN203757031U - Flow regulating valve and breathing machine with flow regulating valve - Google Patents
Flow regulating valve and breathing machine with flow regulating valve Download PDFInfo
- Publication number
- CN203757031U CN203757031U CN201420091037.5U CN201420091037U CN203757031U CN 203757031 U CN203757031 U CN 203757031U CN 201420091037 U CN201420091037 U CN 201420091037U CN 203757031 U CN203757031 U CN 203757031U
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- Prior art keywords
- catch
- flow control
- control valve
- regulating
- regulating spool
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- 230000001105 regulatory effect Effects 0.000 title claims abstract description 104
- 230000029058 respiratory gaseous exchange Effects 0.000 title abstract 2
- 125000003003 spiro group Chemical group 0.000 claims description 13
- 230000000241 respiratory effect Effects 0.000 claims description 10
- 230000008859 change Effects 0.000 abstract description 8
- 230000000903 blocking effect Effects 0.000 abstract 7
- 230000007363 regulatory process Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 10
- 238000009423 ventilation Methods 0.000 description 7
- 238000012856 packing Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 238000007789 sealing Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910000737 Duralumin Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
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- Sliding Valves (AREA)
Abstract
The utility model discloses a flow regulating valve and a breathing machine with the flow regulating valve. The flow regulating valve comprises a valve body, a regulating valve element, a regulating blocking piece and a valve rod. A chamber with one side open is defined in the valve body, and the valve body is provided with an air inlet and an air outlet communicated with the chamber. The regulating valve element is arranged inside the chamber and located between the air inlet and the air outlet, and the regulating valve element is provided with a vent hole communicated with the air inlet and the air outlet. The regulating blocking piece is movably attached to the regulating valve element to regulate the sectional area of the part that the vent hole is communicated with the air inlet and the air outlet. The valve rod is arranged on the open side of the chamber, seals the chamber and is connected with the regulating blocking piece to drive the regulating blocking piece to move. According to the flow regulating valve, the regulating blocking piece is movably attached to the regulating valve element to connect the valve rod and the regulating blocking piece, the regulating blocking piece can change the sectional area of the part that the vent hole is communicated with the air inlet and the air outlet to regulate the air flow, the regulating process is easy and convenient, and the regulating precision is high.
Description
Technical field
The utility model relates to medical equipment technical field, more specifically, relates to a kind of flow control valve and has its respiratory machine.
Background technique
In respiratory machine field, flow control valve is mostly to be coordinated gas flow is regulated by cone, and by screw thread rotation, promotes the relative height of cone and tapered sleeve, thereby controls ventilation sectional area, completes the ascending adjusting of flow.Because tapering machining error is large and be difficult for measurement, often there will be Flow-rate adjustment inaccurate, range of flow can not meet the requirements of phenomenon.Cone is in use easy to wear simultaneously, greatly reduces the working life of flow control valve.The flow control valve of this structure becomes the drawback that respiratory machine is produced and used.
Model utility content
The utility model is intended to solve at least to a certain extent one of technical problem in correlation technique.For this reason, an object of the present utility model is to propose the convenient and flow control valve accurately of a kind of Flow-rate adjustment.
Another object of the present utility model is to propose a kind of respiratory machine with above-mentioned flow control valve.
Flow control valve according to the utility model first aspect, comprising: valve body, in described valve body, be limited with the unlimited chamber of a side, and described valve body is provided with suction port and the air outlet with described chamber conducting; Regulating spool, described regulating spool is located in described chamber and between described suction port and air outlet, described regulating spool is provided with the vent with described suction port and air outlet conducting; Regulate catch, the described adjusting catch described regulating spool setting of fitting movably to regulate the sectional area of described vent and described suction port and air outlet conducting; And valve rod, described valve rod is located at the unlimited side of described chamber and seals described chamber, and described valve rod is connected to drive described adjusting catch movable with described adjusting catch.
According to flow control valve of the present utility model, by adjusting catch being fitted movably to regulating spool valve rod is connected with regulating catch, when movable under the drive that regulates catch at valve rod, the sectional area of the vent on regulating spool and suction port and air outlet conducting can change, the uninterrupted of the gas by flow control valve changes thus, gas flow is regulated, and this adjustment process is simple and convenient and regulate validity high.
In addition, according to flow control valve of the present utility model, can also there is following additional technical characteristics:
According to an embodiment of the present utility model, described chamber forms the unlimited tubbiness in upper end, and described suction port is located at a side of contiguous lower end on described valve body, and described air outlet is located at the lower end of described valve body.
According to an embodiment of the present utility model, described regulating spool forms column, and described vent forms and connects the upper surface of described regulating spool and the through hole of lower surface.
According to an embodiment of the present utility model, described vent forms the linear vent extending to outer circumferential face along the axle center of described regulating spool, and the length of described vent is less than the radius of described regulating spool.
According to an embodiment of the present utility model, the fit upper surface setting of described regulating spool of described adjusting catch, described adjusting catch forms spirality, and the external frame of described adjusting catch comprises: helix portion, described helix portion by first end to the second end to 360 ° of external spirals; And line part, the two ends of described line part are connected with the second end with the first end of described helix portion respectively.
According to an embodiment of the present utility model, the upper surface of described regulating spool is provided with catch positioning spiro pit, and described catch positioning spiro pit is located at described vent away between the one end in axle center and the periphery of described regulating spool edge.
According to an embodiment of the present utility model, the length of described line part is greater than the first end of described helix portion and the beeline between described catch positioning spiro pit.
According to an embodiment of the present utility model, the upper surface of described adjusting catch is provided with slot, and the lower end of described valve rod is stretched in described slot to drive described adjusting catch to rotate.
According to an embodiment of the present utility model, the outer circumferential face of described valve rod is provided with the circular groove circumferentially extending along it, and described flow control valve also comprises seal ring, and described seal ring is set in the inner circle wall of valve body in described circular groove and described in butt.
According to the respiratory machine of the utility model second aspect, comprise the flow control valve described in above-described embodiment.
Accompanying drawing explanation
Fig. 1 is according to the structural representation of the utility model embodiment's flow control valve;
Fig. 2 is according to the structural representation of the valve body of the utility model embodiment's flow control valve;
Fig. 3 is according to the plan view of the valve body of the utility model embodiment's flow control valve;
Fig. 4 is according to the sectional view at regulating spool place in the valve body of the utility model embodiment's flow control valve;
Fig. 5 is according to the structural representation of the regulating spool of the utility model embodiment's flow control valve;
Fig. 6 is according to the structural representation of the adjusting catch of the utility model embodiment's flow control valve;
Fig. 7 is according to the sectional drawing of the adjusting catch of the utility model embodiment's flow control valve;
Fig. 8 is according to the structural representation of the valve rod of the utility model embodiment's flow control valve;
Fig. 9 is according to the end view of the valve rod of the utility model embodiment's flow control valve;
Figure 10 regulates the position relationship schematic diagram of catch and vent in off position time according to the utility model embodiment's flow control valve;
Figure 11 regulates the position relationship schematic diagram of catch and vent when the opening state according to the utility model embodiment's flow control valve;
Figure 12 is the position relationship schematic diagram that regulates catch and vent when the complete opening state according to the utility model embodiment's flow control valve.
Reference character:
Flow control valve 100;
Valve body 10; Chamber 11; Suction port 12; Air outlet 13; The first limited part 14; The second limited part 15; Threaded mounting hole 16;
Regulating spool 20; Vent 21; Catch positioning spiro pit 22;
Regulate catch 30; Helix portion 31; Line part 32; Slot 33; ;
Valve rod 40; Circular groove 41;
Seal ring 50;
Screw plug 60;
Packing ring 70.
Embodiment
Describe embodiment of the present utility model below in detail, described embodiment's example is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Below by the embodiment who is described with reference to the drawings, be exemplary, be intended to for explaining the utility model, and can not be interpreted as restriction of the present utility model.
In description of the present utility model, it will be appreciated that, term " " center ", " longitudinally ", " laterally ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", " counterclockwise ", " axially ", " radially ", orientation or the position relationship of indications such as " circumferentially " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, rather than device or the element of indication or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as restriction of the present utility model.
In addition, term " first ", " second " be only for describing object, and can not be interpreted as indication or hint relative importance or the implicit quantity that indicates indicated technical characteristics.In description of the present utility model, the implication of " a plurality of " is two or more, unless otherwise expressly limited specifically.
In the utility model, unless otherwise clearly defined and limited, the terms such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and for example, can be to be fixedly connected with, and can be also to removably connect, or be integral; Can be mechanical connection, can be to be also electrically connected to; Can be to be directly connected, also can indirectly be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements.For the ordinary skill in the art, can understand as the case may be the concrete meaning of above-mentioned term in the utility model.
Below in conjunction with accompanying drawing, describe in detail according to the utility model first aspect embodiment's flow control valve 100.
As shown in Figures 1 to 12, according to the utility model embodiment's flow control valve 100, comprise valve body 10, regulating spool 20, regulate catch 30 and valve rod 40.In valve body 10, be limited with the unlimited chamber of a side 11, valve body 10 is provided with suction port 12 and the air outlet 13 with chamber 11 conductings.Regulating spool 20 is located in chamber 11 and between suction port 12 and air outlet 13, regulating spool 20 is provided with the vent 21 with suction port 12 and air outlet 13 conductings.Regulate catch 30 regulating spool 20 of fitting movably to arrange to regulate the sectional area of vent 21 and suction port 12 and air outlet 13 conductings; Valve rod 40 is located at a side and the sealing chamber 11 that chamber 11 opens wide, and valve rod 40 is connected to drive catch 30 activities that regulate with regulating catch 30.
According to the utility model embodiment's flow control valve 100, by adjusting catch 30 being fitted movably to regulating spool 20 valve rod 40 is connected with regulating catch 30, when regulating catch 30 movable under the drive of valve rod 40, vent 21 on regulating spool 20 can change with the sectional area of suction port 12 and air outlet 13 conductings, the uninterrupted of the gas by flow control valve 100 changes thus, gas flow is regulated, and this adjustment process is simple and convenient and regulate validity high.
Particularly, according to an embodiment of the present utility model, chamber 11 forms the unlimited tubbiness in upper end substantially, and suction port 12 is located at a side of contiguous lower end on valve body 10, and air outlet 13 is located at the lower end of valve body 10.Further, regulating spool 20 forms column, and vent 21 forms and connects the upper surface of regulating spool 20 and the through hole of lower surface.In valve body 10, be formed with the chamber 11 of tubbiness, suction port 12 is located on the sidewall of contiguous lower end on valve body 10, air outlet 13 is located on the lower end surface of valve body 10, column regulating spool 20 is located in chamber 11 and between air outlet 13 and suction port 12, and the vent 21 that connects its upper surface and lower surface on regulating spool 20 can be communicated with air outlet 13 and suction port 12.
Further, according to an embodiment of the present utility model, vent 21 forms the linear vent 21 extending to outer circumferential face along the axle center of regulating spool 20, and the length of vent 21 is less than the radius of regulating spool 20.In other words, regulating spool 20 is provided with the linear vent 21 that connects its upper surface and lower surface, and this linear vent 21 is along the radially extension of regulating spool 20, and extended length is less than the radius of regulating spool 20 and is positioned at a side in axle center.
According to an embodiment of the present utility model, regulate the upper surface setting of catch 30 laminating regulating spools 20, when the upper surface activity that regulates catch 30 laminating regulating spools 20 is during to the position of regulating spool 20 upper vent holes 21, the sectional area of vent 21 on the upper surface of regulating spool 20 can change, thereby the ventilation cross section of the vent 21 that is communicated with suction port 12 is changed, realize the adjusting to ventilation flow rate.
As shown in Figure 6, regulate catch 30 substantially to form spirality, regulate the external frame of catch 30 to comprise helix portion 31 and line part 32, helix portion 31 is by first end to the second end to 360 ° of external spirals, and the two ends of line part 32 are connected with the second end with the first end of helix portion 31 respectively.Now, regulate the cross section of catch 30 to form curvecd surface type, when regulating catch 30 to rotate along its axle center under the drive of valve rod 40, can make the sectional area of linear vent 21 on the upper surface of regulating spool 20 change.
Particularly, as shown in Figure 10 to Figure 12, when regulating catch 30 with valve rod 40 rotations during to position as shown in Figure 10, regulate catch 30 that linear vent 21 is covered completely, the sectional area that makes to ventilate becomes 0, and after the suction port 12 inflow chambers 11 of gas from valve body 10 are interior, gas pressure can will regulate catch 30 and regulating spool 20 to press together closely, make to regulate between catch 30 and the upper surface of regulating spool 20 and there is no space, linear vent 21 is completely sealed, between suction port 12 and linear vent 21, be not communicated with, gas cannot pass through flow control valve 100, flow control valve 100 is in closed condition, flow is zero.
When regulating catch 30 to be rotated in a clockwise direction to position as shown in Figure 11 with valve rod 40, at linear vent 21 places, regulate the periphery of catch 30 along the distance on distance adjustment spool 20 periphery edges, to be greater than the distance on the outermost end distance adjustment spool 20 periphery edges of linear vent 21, regulate catch 30 linear vent 21 not to be covered completely from the upper surface of regulating spool 20, on vent 21, be positioned at and regulate the part in catch 30 outsides in opening-wide state, now the ventilation sectional area between linear vent 21 and suction port 12 is the area of this open section, flow control valve 100 is in part opening-wide state, the a certain numerical value of its flow in range of flow.When needing the flow of adjust flux modulating valve 100, only need to change the area of this open section, particularly, can drive and regulate catch 30 to rotate by rotary valve rod 40.
When regulating catch 30 to be rotated in a clockwise direction to position as shown in Figure 12 with valve rod 40, in the direction of linear vent 21, regulate the periphery of catch 30 maximum along the distance on distance adjustment spool 20 periphery edges, regulate catch 30 along the direction of linear vent 21, to cover the area minimum of regulating spool 20 upper surfaces, the sectional area that is now positioned at the linear vent 21 that regulates catch 30 outsides is maximum, be that the open area of linear vent 21 is maximum (when the inner side of linear vent 21 is less than the periphery that regulates catch 30 when arriving the distance on regulating spool 20 periphery edges to the distance on regulating spool 20 periphery edges, 21 of whole vents are in complete opening-wide state, ventilation cross section equals the sectional area of linear vent 21), ventilation sectional area between linear vent 21 and suction port 12 is maximum, now the flow of flow control valve 100 reaches maximum value.
As can be seen here, the periphery that forms linear vent 21 and regulate catch 30 when vent 21 is when for spirality curved surface, only need regulate catch 30 can control the flow of flow control valve 100 by rotation, and make its flow realize linearly adjust, control procedure be simple and convenient and adjusting is accurate.Meanwhile, can adjust as required the length of linear vent 21 and the ventilation scope that width is determined flow control valve 100, to obtain various traffic demands; And capable of regulating regulates the shape on the periphery edge of catch 30 to change the gas flow of different valve rods 40 when different amount.
In order to be more convenient for, flow is regulated, alternatively, according to an embodiment of the present utility model, the upper surface of regulating spool 20 is provided with catch positioning spiro pit 22, and catch positioning spiro pit 22 is located at vent 21 away between the one end in axle center and the periphery of regulating spool 20 edge.In this catch positioning spiro pit 22, catch positioning screwn can be installed, to carry out spacing to adjusting catch 30.Wherein, catch positioning screwn can be socket head screw.
Particularly, according to an embodiment of the present utility model, the length of line part 32 is greater than the first end of helix portion 31 and the beeline between catch positioning spiro pit 22.Now, when regulating catch 30 to rotate along its axle center, screw in catch positioning spiro pit 22 can be to regulating catch 30 to play restriction, make the rotating 360 degrees that it can not be complete, while regulating catch 30 to rotate between two limit position, the flow of flow control valve 100 can convert gradually between peak rate of flow and minimum discharge, and it is more accurate to make to regulate.
In addition, consider that regulating the rotation of catch 30 is to be driven by valve rod 40, when mobile asynchronous between adjusting catch 30 and valve rod 40, can affect the sensitivity of Flow-rate adjustment, alternatively, according to an embodiment of the present utility model, regulate the upper surface of catch 30 to be provided with slot 33, the lower end of valve rod 40 is stretched in slot 33 and is regulated catch 30 to rotate to drive.Thus, slot 33 can play positioning action to valve rod 40, and valve rod 40 can be assembled together with regulating catch 30 easily, to drive, regulates catch 30 to rotate.
Wherein, the structure of slot 33 can have multiple, for example, as shown in Figure 6, slot 33 forms fan-shaped, and one end of valve rod 40 forms the fan-shaped bar with its structure adaptation, when fan-shaped bar is set in slot 33 when interior, can effectively prevent valve rod 40 and regulate catch 30 because the nonsynchronous problem of movement that slippage causes mutually occurs, making Flow-rate adjustment more accurate.Be understandable that, slot 33 should be positioned at the shaft core position that regulates catch 30, so that regulate catch 30 to rotate along its axle center under the drive of valve rod 40.
Regulate catch 30 and valve rod 40 to can be metalwork, particularly, regulate catch 30 can adopt metallic copper processing, because the self-lubricating property of copper is good, the adjusting catch 30 of preparing with it rotates smooth and easy flexibly.Valve rod 40 can adopt duralumin to be prepared from, and now, the intensity of valve rod 40 is high, long service life, and be convenient to processing.
Further, according to an embodiment of the present utility model, the outer circumferential face of valve rod 40 is provided with the circular groove 41 circumferentially extending along it, and flow control valve 100 also comprises seal ring 50, and seal ring 50 is set in circular groove 41 and the inner circle wall of butt valve body 10.As shown in Figure 8 and Figure 9, when valve rod 40 is assemblied on valve body 10, circular groove 41 on valve rod 40 is positioned at the top of suction port 12, when seal ring 50 being set in to circular groove 41 when interior, can improve the sealing between the outer circumferential face of valve rod 40 and the inwall of valve body 10, avoid contacting between the outer circumferential face of valve rod 40 and the inwall of valve body 10 imprecision and occur gap and make from then on inflow and outflow in gap of gas, thereby reduce the accuracy of flow control valve 100 Flow-rate adjustment, affect its usability.
Similarly, between the inwall of the periphery wall of regulating spool 20 and valve body 10, also seal ring 50 can be set, to improve the interior suction port 12 of valve body 10 to the sealing of gas circuit between air outlet 13, avoid the outer circumferential face of regulating spool 20 and the sidewall contact of valve body 10 sternly not to cause gas to flow through from this, affect the accuracy of Flow-rate adjustment.Particularly, can on the inwall of valve body 10, groove be set, then seal ring 50 be placed in it, make the periphery wall close contact of seal ring 50 and regulating spool 20.
A side of considering chamber 11 is unlimited, in flow control valve 100 using processs, because causing valve rod 40, deviates from from this unlimited chamber 11 internal gas pressure, therefore, when assembling flow control valve 100, the side sealing that chamber 11 can be opened wide so that valve rod 40 and adjusting catch 30 are fixed in valve body 10, also can improve the sealing of valve body 10 simultaneously.Particularly, adding man-hour, can then screw plug 60 screwed in these tapped holes processing screw thread on the inwall of chamber 11 unlimited sides to form tapped hole, assembly process is simple and convenient.
And for above structure, the problem that may occur assembling tension because of reasons such as assemblings between screw plug 60 and valve rod 40, now valve rod 40 can not rotate neatly, in order to solve this technical problem, alternatively, as shown in Figure 2, can be at interior first limited part 14 that arranges of valve body 10, the first limited part 14 can be avoided the excessive inward turning of screw plug 60 and be close to valve rod 40, makes between valve rod 40 and screw plug 60 to be detained certain gap, guarantees the flexibility that valve rod 40 rotates.
Meanwhile, also can in this gap between valve rod 40 and screw plug 60, place packing ring 70, the wearing and tearing that are subject to when rotating to alleviate valve rod 40, improve its working life.Particularly, packing ring 70 can adopt polytetrafluoroethylmaterial material preparation, and its slip resistance and self-lubricating property are good, can reduce the frictional force that valve rod 40 drives while regulating catch 30 to-and-fro motion, can guarantee the working life of packing ring 70 simultaneously.
In addition, when regulating spool 20 is packing valve body 10 into when interior, when the diapire of the lower surface of regulating spool 20 and valve body 10 is close to, can cause vent 21 sealed and can not ventilate, therefore, between the upper surface of regulating spool 20 and the diapire of valve body 10, should reserve certain gap.For this reason, the inner circle wall of contiguous its lower end surface on valve body 10 can be arranged to ladder-type, to produce the second limited part 15, as shown in Figure 2, the second limited part 15 can limit regulating spool 20 and move to the diapire in valve body 10, make to there is certain gap between diapire and regulating spool 20, guarantee unimpeded between vent 21 and air outlet 13.
According to the utility model embodiment's flow control valve 100 in when assembling, can first seal ring 50 be arranged in the groove of valve body 10 inwalls, interior hexagonal Cock screw be arranged on to catch positioning spiro pit 22 on regulating spool 20 and regulating spool 20 be arranged in valve body 10 and be offseted with the second limited part 15 on valve body 10 after interior; Then another seal ring 50 is arranged in the groove on valve rod 40, then adjusting catch 30 is coordinated and packed in valve body 10 with valve rod 40 front ends; Finally packing ring 70 is arranged in valve body 10 by valve rod 40 rear ends, then screw plug 60 is screwed in to the corresponding tapped hole of valve body 10, so that valve rod 40 and adjusting catch 30 are fixed in valve body 10.Flow control valve 100 can tentatively assemble.
In this assembly process, between each parts, can mostly adopt Spielpassung.In addition, in order to facilitate being connected of flow control valve 100 and miscellaneous part, suction port 12 and air outlet 13 can be designed to standard thread hole, to facilitate installation various terminal; Or threaded mounting hole 16 can be set on the outer wall of valve body 10, so that the installation of flow control valve 100.
In a word, according to the utility model embodiment's flow control valve 100, can carry out linearly adjust to flow, easy to adjust and accurate, be difficult for corrosion simultaneously, be convenient to processing and assembling, can cut down finished cost, save installation time.
According to the utility model second aspect embodiment's respiratory machine, comprise the flow control valve 100 of above-described embodiment.Owing to thering is above-mentioned useful technique effect according to the utility model embodiment's flow control valve 100, therefore according to the utility model embodiment's respiratory machine, also there is corresponding technique effect, Flow-rate adjustment is simple and accurate.
According to other formations and the operation of the utility model embodiment's respiratory machine, be all known for the person of ordinary skill of the art, at this, be not described in detail.
In the description of this specification, the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present utility model or example in conjunction with specific features, structure, material or the feature of this embodiment or example description.In this manual, to the schematic statement of above-mentioned term not must for be identical embodiment or example.And, the specific features of description, structure, material or feature can one or more embodiments in office or example in suitable mode combination.In addition,, not conflicting in the situation that, those skilled in the art can carry out combination and combination by the feature of the different embodiments that describe in this specification or example and different embodiment or example.
Although illustrated and described embodiment of the present utility model above, be understandable that, above-described embodiment is exemplary, can not be interpreted as restriction of the present utility model, those of ordinary skill in the art can change above-described embodiment in scope of the present utility model, modification, replacement and modification.
Claims (10)
1. a flow control valve, is characterized in that, comprising:
Valve body, is limited with the unlimited chamber of a side in described valve body, described valve body is provided with suction port and the air outlet with described chamber conducting;
Regulating spool, described regulating spool is located in described chamber and between described suction port and air outlet, described regulating spool is provided with the vent with described suction port and the conducting of described air outlet;
Regulate catch, the described adjusting catch described regulating spool setting of fitting movably to regulate the sectional area of described vent and described suction port and air outlet conducting; With
Valve rod, described valve rod is located at the unlimited side of described chamber and seals described chamber, and described valve rod is connected to drive described adjusting catch movable with described adjusting catch.
2. flow control valve according to claim 1, is characterized in that, described chamber forms the unlimited tubbiness in upper end, and described suction port is located at a side of contiguous lower end on described valve body, and described air outlet is located at the lower end of described valve body.
3. flow control valve according to claim 2, is characterized in that, described regulating spool forms column, and described vent forms and connects the upper surface of described regulating spool and the through hole of lower surface.
4. flow control valve according to claim 3, is characterized in that, described vent forms the linear vent extending to outer circumferential face along the axle center of described regulating spool, and the length of described vent is less than the radius of described regulating spool.
5. flow control valve according to claim 4, is characterized in that, the fit upper surface setting of described regulating spool of described adjusting catch, and described adjusting catch forms spirality, and the external frame of described adjusting catch comprises:
Helix portion, described helix portion by first end to the second end to 360 ° of external spirals; With
Line part, the two ends of described line part are connected with the second end with the first end of described helix portion respectively.
6. flow control valve according to claim 5, is characterized in that, the upper surface of described regulating spool is provided with catch positioning spiro pit, and described catch positioning spiro pit is located at described vent away between the one end in axle center and the periphery of described regulating spool edge.
7. flow control valve according to claim 6, is characterized in that, the length of described line part is greater than the first end of described helix portion and the beeline between described catch positioning spiro pit.
8. flow control valve according to claim 5, is characterized in that, the upper surface of described adjusting catch is provided with slot, and the lower end of described valve rod is stretched in described slot to drive described adjusting catch to rotate.
9. flow control valve according to claim 8, it is characterized in that, the outer circumferential face of described valve rod is provided with the circular groove circumferentially extending along it, and described flow control valve also comprises seal ring, and described seal ring is set in the inner circle wall of valve body in described circular groove and described in butt.
10. a respiratory machine, is characterized in that, comprises the flow control valve described in any one in claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420091037.5U CN203757031U (en) | 2014-02-28 | 2014-02-28 | Flow regulating valve and breathing machine with flow regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420091037.5U CN203757031U (en) | 2014-02-28 | 2014-02-28 | Flow regulating valve and breathing machine with flow regulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203757031U true CN203757031U (en) | 2014-08-06 |
Family
ID=51252310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420091037.5U Expired - Lifetime CN203757031U (en) | 2014-02-28 | 2014-02-28 | Flow regulating valve and breathing machine with flow regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203757031U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104879515A (en) * | 2014-02-28 | 2015-09-02 | 北京谊安医疗***股份有限公司 | Flow control valve and respirator provided with same |
| CN106641730A (en) * | 2016-11-30 | 2017-05-10 | 南京妙策传媒有限公司 | Natural gas liquefying process supercharging device capable of being adjusted in real time |
-
2014
- 2014-02-28 CN CN201420091037.5U patent/CN203757031U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104879515A (en) * | 2014-02-28 | 2015-09-02 | 北京谊安医疗***股份有限公司 | Flow control valve and respirator provided with same |
| CN106641730A (en) * | 2016-11-30 | 2017-05-10 | 南京妙策传媒有限公司 | Natural gas liquefying process supercharging device capable of being adjusted in real time |
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Granted publication date: 20140806 |