CN201094782Y - Infusion flow adjuster and liquid controlling valve thereof - Google Patents
Infusion flow adjuster and liquid controlling valve thereof Download PDFInfo
- Publication number
- CN201094782Y CN201094782Y CNU2007201755589U CN200720175558U CN201094782Y CN 201094782 Y CN201094782 Y CN 201094782Y CN U2007201755589 U CNU2007201755589 U CN U2007201755589U CN 200720175558 U CN200720175558 U CN 200720175558U CN 201094782 Y CN201094782 Y CN 201094782Y
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- valve
- liquid
- spacing ring
- container cavity
- adjusting valve
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Abstract
The utility model relates to a liquid control valve used for a transfusion flow adjustor, which includes a transfusion tube joint (9) and an annular groove (12) the cross section area of which gradually changes from large to small on the inside sealing surface (11); the transfusion tube joint (9) on the liquid control valve (7) is communicated with the annular groove (12) through a channel (13); the liquid control valve (7) includes a valve shell (7a); a liquid adjusting valve holding chamber (15) is arranged below the sealing surface (11) in the valve shell (7a); a limiting ring (7b) is connected with the valve shell (7a); the limiting ring (7b) is provided with an annular flange facing to the inside; the upper surface of the annular flange forms the lower limiting surface of the liquid adjusting valve holding chamber. The utility model also relates to a transfusion flow adjuster which uses the liquid control valve (7). The transfusion flow adjuster has the advantages of simple structure and convenience in processing and forming.
Description
Technical field
This utility model is specifically related to technical field of medical instruments, refers in particular to a kind of infusion flow adjuster.
Background technology
In hospital, when the patient was carried out the venous transfusion treatment, infusion regulator was than indispensable medical apparatus and instruments.In numerous selectable infusion regulators, most complex structure and costing an arm and a leg, and also mostly to have adopted transfusion plane and transfusion horizontal plane be the design of 80cm, it applied be restricted.
In order to address the above problem, applicant of the present invention discloses a kind of infusion flow adjuster in its patent No. is the patent of ZL01270179.3, comprise a liquid-controlling valve and a liquid adjusting valve in this actuator, described liquid-controlling valve and liquid adjusting valve respectively have a tube for transfusion joint; In addition, also have a matching trim between described liquid-controlling valve and the liquid adjusting valve, and the two can rotate relatively along the sealing face.Wherein, liquid-controlling valve has a descending annular groove that gradually changes of cross section on sealing surface, and the tube for transfusion joint that is positioned on the liquid-controlling valve communicates with described groove through a through hole; Liquid adjusting valve is provided with a corresponding opening of the circumference with the groove place on described sealing surface, described opening passes the passage of liquid adjusting valve through one and communicates with tube for transfusion joint on the liquid adjusting valve.In the cooperation of described liquid adjusting valve and liquid-controlling valve, the side of the described liquid-controlling valve of this patent has the lateral margin that the phase liquid adjusting valve stretches, and the inner face of described lateral margin limits a cavity that holds liquid adjusting valve; Described liquid adjusting valve side has the annular lip that is positioned at cavity; The inner face of described liquid-controlling valve lateral margin has the clamping device that remains on described flange in the described cavity and make described sealing surface sealing.The disclosed infusion flow adjuster of this patent simple in structure, easy to operate and can control infusion flow exactly.But, because the clamping device on the liquid-controlling valve is the annular lip that belongs to one with lateral margin, so in the process of using Mould Machining manufacturing liquid-controlling valve, can there are the following problems when treating to remove the mold separation liquid-controlling valve after the injection mo(u)lding: (1) be if when injection temperature reduces, remove the program of mould, for the removing of mould, more or less freely; But this moment, liquid-controlling valve also was in soft state, removed mould and will make the liquid adjusting valve structural entity be out of shape, thereby influence the Flow-rate adjustment precision; (2) remove after temperature is reduced to room temperature after the injection moulding if treat, because liquid-controlling valve this moment molding fully, when removing mould because described clamping device fixing to mould, make and to remove mould and relatively require great effort, thereby probably in applying the process of external force, cause damage, thereby reduced production efficiency liquid-controlling valve.
The utility model content
Technical problem to be solved in the utility model provides a kind ofly is convenient to machine-shaping, simple in structure and economic infusion flow adjuster with liquid-controlling valve and infusion flow adjuster.
For achieving the above object, a kind of infusion flow adjuster liquid-controlling valve described in the utility model, it comprises a tube for transfusion joint, with the descending annular groove that gradually changes of the cross-sectional area on its inner seal face, the tube for transfusion joint on the described liquid-controlling valve communicates with described annular groove by a passage; Described liquid-controlling valve comprises a valve casing, has a liquid adjusting valve container cavity within the described valve casing and in the below of described sealing surface; Be connected with a spacing ring on described valve casing, have the annular lip of inside stretching, extension on the described spacing ring, the upper surface of described annular lip constitutes the lower limit plane of described liquid adjusting valve container cavity.
A kind of infusion flow adjuster of the above-mentioned liquid-controlling valve of use described in the utility model, it comprises liquid-controlling valve and the liquid adjusting valve that has the tube for transfusion joint respectively, described liquid-controlling valve and described liquid adjusting valve by sealing surface can counterrotating mode being combined into one; Described liquid-controlling valve has a descending annular groove that gradually changes of cross section on described sealing surface, tube for transfusion joint on the described liquid-controlling valve communicates with described annular groove by a passage, described liquid adjusting valve is provided with a corresponding opening of circumference with described annular groove place on described sealing surface, described opening passes the passage of liquid adjusting valve by one and communicates with tube for transfusion joint on the described liquid adjusting valve; Wherein, described liquid-controlling valve comprises a valve casing, has a liquid adjusting valve container cavity within the described valve casing and in the below of described sealing surface; Be connected with a spacing ring on described valve casing, have on the described spacing ring towards interior annular lip, the upper surface of described annular lip constitutes the lower limit plane of described liquid adjusting valve container cavity; Described liquid adjusting valve has the annular lip that cooperates with described lower limit plane in its container cavity.
The utlity model has following advantage:
The liquid-controlling valve of infusion flow adjuster described in the utility model, the spacing ring (being clamping device) that is shaped on the liquid-controlling valve of the prior art is set to the two independent parts assembly with the liquid-controlling valve valve casing, it can be after injection mo(u)lding separately, by welding or interconnection technique such as bonding the two is connected together again, thereby form the spacing cavity that is used for holding the liquid adjusting valve head end once more; This infusion flow adjuster has avoided to the improvement of its liquid-controlling valve structure that global formation removes the damage that mould causes actuator in the prior art, thereby can be in the precision that guarantees production efficiency and this control of product fluid flow better.
Description of drawings
Fig. 1 is the user mode sketch map of infusion flow adjuster described in the utility model;
Fig. 2 is the selectivity project organization cutaway view of infusion flow adjuster described in the utility model with liquid-controlling valve; Wherein, Fig. 2 (b) is the liquid-controlling valve cutaway view when in the spacing ring cavity spacing ring not being installed;
Fig. 3 is the cutaway view of infusion flow adjuster described in the utility model;
Fig. 4 is the expansion sketch map of the groove of liquid-controlling valve shown in Fig. 3 along circumference;
Fig. 5 is the sketch map of liquid adjusting valve shown in Fig. 3;
Fig. 6 is that the A of liquid adjusting valve among Fig. 5 is to sketch map;
Fig. 7 is the cutaway view of the used gasket seal of this utility model;
Fig. 8 is that the B of gasket seal shown in Figure 7 is to view.
Each labelling is corresponding respectively among the figure: infusion bottle-1; Air filter-2; Dropping funnel-3; Infusion flow adjuster-4; Filter-5; Syringe needle-6; Liquid-controlling valve-7; Valve casing-7a; Spacing ring-7b; Liquid adjusting valve-8; Liquid adjusting valve head end-8b; Tube for transfusion joint-9,10; Sealing surface-11; Annular groove-12; Passage-13,17; Medial surface-14; Liquid adjusting valve container cavity-15; Annular lip-16; Position-limit mechanism-18,19; Groove-20,21; Opening-22; Gasket seal-23; Spacing ring container cavity-24.
The specific embodiment
Below with reference to accompanying drawing, this utility model is further set forth by following examples.
Fig. 1 is the user mode sketch map of infusion flow adjuster described in the utility model, and wherein label is that 4 device promptly is an infusion flow adjuster 4, and it is used to regulate the flow of transfusion liquid.
Shown in Fig. 2-8, infusion flow adjuster described in the utility model liquid-controlling valve 7, comprise a tube for transfusion joint 9, with the descending annular groove that gradually changes 12 of the cross-sectional area on its inner seal face 11, the tube for transfusion joint 9 on the described liquid-controlling valve 7 communicates with described annular groove 12 by a passage 13; Wherein, described liquid-controlling valve 7 comprises a valve casing 7a, has a liquid adjusting valve container cavity 15 within the described valve casing 7a and in the below of described sealing surface 11; Be connected with a spacing ring 7b on described valve casing 7a, have towards interior annular lip on the described spacing ring 7b, the upper surface of described annular lip constitutes the lower limit plane of described liquid adjusting valve container cavity.
Infusion flow adjuster described in the utility model comprises liquid-controlling valve 7 and the liquid adjusting valve 8 that has the tube for transfusion joint respectively, between described liquid-controlling valve 7 and the described liquid adjusting valve 8 sealing surface 11 is set, and by sealing surface 11 can counterrotating mode being combined into one; Described liquid-controlling valve 7 has a descending annular groove that gradually changes 12 of cross section on described sealing surface 11, tube for transfusion joint 9 on the described liquid-controlling valve 7 communicates with described annular groove 12 by a passage 13, described liquid adjusting valve 8 is provided with a corresponding opening 22 of circumference with described annular groove 12 places on described sealing surface 11, described opening 22 passes the passage 17 of liquid adjusting valve 8 by one and communicates with tube for transfusion joint 10 on the described liquid adjusting valve 8.Wherein, described liquid-controlling valve 7 comprises a valve casing 7a, has a liquid adjusting valve container cavity 15 within the described valve casing 7a and in the below of described sealing surface 11; Be connected with a spacing ring 7b on described valve casing 7a, have towards interior annular lip on the described spacing ring 7b, the upper surface of described annular lip constitutes the lower limit plane of described liquid adjusting valve container cavity; Described liquid adjusting valve 8 has the annular lip 16 that cooperates with described lower limit plane in its container cavity.
Wherein, spacing ring 7b can be designed as continuous loop, also can be designed as the noncontinuity ring-type.If be prepared into successive spacing ring 7b, then it compares relative simple with the processor of above-mentioned discrete annular lip.If spacing ring 7b is discrete, this structure can save material when realizing spacing purpose effectively.
On the basis of the above, infusion flow adjuster described in the utility model and liquid-controlling valve 7 thereof all can have following modification:
1. have a spacing ring container cavity 24 (seeing shown in Fig. 2 (b)) that is provided with spacing ring 7b in the valve casing 7a bottom of liquid-controlling valve 7, the internal diameter of described spacing ring container cavity 24 greater than described valve casing 7a in the internal diameter at liquid adjusting valve container cavity 15 places; The inner face of the upper surface of the annular lip of described spacing ring, sealing surface 11 and described valve casing 7a constitutes liquid adjusting valve container cavity 15.The structural representation of the liquid-controlling valve 7 of this modification is seen shown in Fig. 2 (c).
The design of relevant spacing ring, also have following second kind of modification: below the valve casing 7a of liquid-controlling valve 7, be provided with spacing ring 7b, described spacing ring 7b has the side edge of extending along described valve casing 7a inner face, the annular lip of described spacing ring 7b with respect to described side along to projecting inward; Described sealing surface 11 constitutes the upper limit plane of described liquid adjusting valve container cavity 15, the upper surface of described annular lip constitutes the lower limit plane of described liquid adjusting valve container cavity 15, and the inner surface on described side edge constitutes the part (seeing shown in Fig. 2 (d)) of described liquid adjusting valve container cavity 15 lateral confinement planes at least.
Two kinds of structural designs of above-mentioned spacing ring 7b, can both realize spacing ring 7b is separated the purpose made from valve casing 7a, thereby avoided at spacing ring 7b and valve casing 7a after one-body molded, the damage that may cause described liquid-controlling valve 7 when removing mould, thus the precision of infusion flow adjuster guaranteed on the whole.
2. be connected by pad between described valve casing 7a and the described spacing ring 7b.Behind the valve casing 7a and the molding of spacing ring 7b independence with liquid-controlling valve 7 in this modification, select to use solder technology, realize being connected of above-mentioned valve casing 7a and spacing ring 7b such as laser weld, ultrasonic bonding, plasma welding etc.This is efficiently a kind of and method of attachment fast.
3. be connected by adhesive spots between described valve casing 7a and the described spacing ring 7b.Behind the valve casing 7a and the molding of spacing ring 7b independence with liquid-controlling valve 7 in this modification, select to use the connection between the adhesive technology realization said two devices.This is a kind of simple method of attachment that very easily realizes.
4. pad or adhesive spots are arranged between described spacing ring 7b and the described valve casing 7a on the joint face perpendicular to liquid-controlling valve 7 axis between described valve casing 7a and the described spacing ring 7b.Why described pad or adhesive spots are selected to be arranged at above-mentioned position, be because this solder joint or adhesive spots chosen position can be efficiently and stably realized connection between valve casing 7a and the described spacing ring 7b, and in described valve casing 7a and described spacing ring 7b assembling and separating process, keep certain connectivity robustness.Certainly, as the embodiment that can select, described pad and adhesive spots can distribute and be arranged on all joint faces between described valve casing 7a and the described spacing ring 7b.
In addition, need to prove that in infusion flow adjuster described in the utility model, liquid adjusting valve (8) is provided with has the annular lip (16) that cooperates with described lower limit plane in its container cavity; This setting is the stability in order to realize that better liquid adjusting valve 8 and liquid-controlling valve 7 cooperate.
This utility model also can be provided with the gasket seal 23 that matches with the sealing surface 11 of described liquid-controlling valve 7 in a groove 20 of liquid adjusting valve 8 end surfaces.Being provided with of gasket seal 23 is beneficial to the more excellent sealing effectiveness of realizing the sealing surface between liquid-controlling valve 7 described in the utility model and the liquid adjusting valve 8, and the sealing effect is mainly at annular groove 12; In addition, the setting of gasket seal 23 also can be eliminated to a certain extent owing to the influence of the not enough gap error that brings of machining accuracy to infusion flow.So at this latex pad that preferably prepares by natural milk gelatin.In addition, this structure setting can be realized the location to gasket seal 23 like a cork, avoided effectively since its location unstable cause exchange amount of restriction the time spinning movement influence.
In addition, described liquid-controlling valve 7 and liquid adjusting valve 8 also can be provided with rotary stopper mechanism 18,19 (seeing Fig. 2 and Fig. 5) and flow scale (not shown) respectively; Described position-limit mechanism limits the further rotation relatively between described liquid-controlling valve 7 and the liquid adjusting valve 8 when making that when described liquid adjusting valve 8 rotations opening 22 arrives the place, maximum cross section from being positioned at annular groove 12 smaller cross-sectional area.Wherein, the setting of flow scale is convenient to Flow-rate adjustment is realized quantitatively control.Among Fig. 2 (c), position-limit mechanism 18 is the catch that are shaped in the downward stretching, extension on liquid-controlling valve 7 valve casings, and among Fig. 5, position-limit mechanism 19 on the liquid adjusting valve 8 is catch of the projection below described flange 16, above-mentioned two catch stop in liquid-controlling valve 7 and liquid adjusting valve 8 relative rotary courses mutually, limit its further rotation relatively, thereby play position-limiting action.As disposable embodiment, described position- limit mechanism 18 and 19 can be can limit the structure that it is further rotated in a certain position in liquid-controlling valve 7 and liquid adjusting valve 8 relative rotary courses arbitrarily.
Though this utility model elaborates it by the specific embodiment; but; those skilled in the art should be understood that; the any form of being made on this basis that does not exceed the claim protection domain and the variation of details all belong to the claimed scope of this utility model.
Claims (11)
1. infusion flow adjuster liquid-controlling valve, it comprises a tube for transfusion joint (9), with the descending annular groove that gradually changes of cross-sectional area (12) on its inner seal face (11), tube for transfusion joint (9) on the described liquid-controlling valve (7) communicates with described annular groove (12) by a passage (13), it is characterized in that: described liquid-controlling valve (7) comprises a valve casing (7a), has a liquid adjusting valve container cavity (15) within the described valve casing (7a) and in the below of described sealing surface (11); Be connected with a spacing ring (7b) on described valve casing (7a), have the annular lip of inside stretching, extension on the described spacing ring (7b), the upper surface of described annular lip constitutes the lower limit plane of described liquid adjusting valve container cavity (15).
2. infusion flow adjuster liquid-controlling valve according to claim 1, it is characterized in that: have a spacing ring container cavity (24) that spacing ring (7b) is set in described valve casing (7a) bottom, the internal diameter that the internal diameter of described spacing ring container cavity (24) is located in liquid adjusting valve container cavity (15) greater than described valve casing (7a); The inner face of the upper surface of the annular lip of described spacing ring, sealing surface (11) and described valve casing (7a) constitutes liquid adjusting valve container cavity (15).
3. infusion flow adjuster liquid-controlling valve according to claim 1, it is characterized in that: be provided with spacing ring (7b) in described valve casing (7a) below, described spacing ring (7b) has the side edge of extending along described valve casing (7a) inner face, the annular lip of described spacing ring (7b) with respect to described side along to projecting inward; Described sealing surface (11) constitutes the upper limit plane of described liquid adjusting valve container cavity (15), the upper surface of described annular lip constitutes the lower limit plane of described liquid adjusting valve container cavity (15), and the inner surface on described side edge constitutes the part of described liquid adjusting valve container cavity (15) lateral confinement plane at least.
4. according to the described infusion flow adjuster liquid-controlling valve of one of claim 1-3, it is characterized in that: be connected by pad between described valve casing (7a) and the described spacing ring (7b).
5. infusion flow adjuster liquid-controlling valve according to claim 4 is characterized in that: described pad is arranged between described spacing ring (7b) and the described valve casing (7a) on the joint face perpendicular to liquid-controlling valve (7) axis.
6. according to the described infusion flow adjuster liquid-controlling valve of one of claim 1-3, it is characterized in that: be connected by adhesive spots between described valve casing (7a) and the described spacing ring (7b).
7. infusion flow adjuster liquid-controlling valve according to claim 6 is characterized in that: described adhesive spots is arranged between described spacing ring (7b) and the described valve casing (7a) on the joint face perpendicular to liquid-controlling valve (7) axis.
8. infusion flow adjuster, it comprises liquid-controlling valve (7) and the liquid adjusting valve (8) that has the tube for transfusion joint respectively, described liquid-controlling valve (7) and described liquid adjusting valve (8) by sealing surface (11) can counterrotating mode being combined into one; Described liquid-controlling valve (7) has a descending annular groove that gradually changes of cross section (12) on described sealing surface (11), tube for transfusion joint (9) on the described liquid-controlling valve (7) communicates with described annular groove (12) by a passage (13), described liquid adjusting valve (8) is provided with a corresponding opening of circumference (22) with described annular groove (12) place on described sealing surface (11), described opening (22) passes the passage (17) of liquid adjusting valve (8) by one and communicates with tube for transfusion joint (10) on the described liquid adjusting valve (8); It is characterized in that: described liquid-controlling valve (7) comprises a valve casing (7a), has a liquid adjusting valve container cavity (15) within the described valve casing (7a) and in the below of described sealing surface (11); Be connected with a spacing ring (7b) on described valve casing (7a), have towards interior annular lip on the described spacing ring (7b), the upper surface of described annular lip constitutes the lower limit plane of described liquid adjusting valve container cavity (15); Described liquid adjusting valve (8) has the annular lip (16) that cooperates with described lower limit plane in its container cavity.
9. infusion flow adjuster according to claim 8, it is characterized in that: have a spacing ring container cavity (24) that is provided with spacing ring (7b) in described valve casing (7a) bottom, the internal diameter that the internal diameter of described spacing ring container cavity (24) is located in liquid adjusting valve container cavity (15) greater than described valve casing (7a); The inner face of the upper surface of the annular lip of described spacing ring, sealing surface (11) and described valve casing (7a) constitutes liquid adjusting valve container cavity (15).
10. infusion flow adjuster according to claim 8, it is characterized in that: be provided with spacing ring (7b) in described valve casing (7a) below, described spacing ring (7b) has the side edge of extending along described valve casing (7a) inner face, the annular lip of described spacing ring (7b) with respect to described side along to projecting inward; Described sealing surface (11) constitutes the upper limit plane of described liquid adjusting valve container cavity (15), the upper surface of described annular lip constitutes the lower limit plane of described liquid adjusting valve container cavity (15), and the inner surface on described side edge constitutes the part of described liquid adjusting valve container cavity (15) lateral confinement plane at least.
11. arbitrary according to Claim 8-10 described infusion flow adjuster is characterized in that: be connected by pad between described valve casing (7a) and the described spacing ring (7b); Described pad is arranged between described spacing ring (7b) and the described valve casing (7a) on the joint face perpendicular to liquid-controlling valve (7) axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201755589U CN201094782Y (en) | 2007-09-17 | 2007-09-17 | Infusion flow adjuster and liquid controlling valve thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201755589U CN201094782Y (en) | 2007-09-17 | 2007-09-17 | Infusion flow adjuster and liquid controlling valve thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201094782Y true CN201094782Y (en) | 2008-08-06 |
Family
ID=39921840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201755589U Expired - Lifetime CN201094782Y (en) | 2007-09-17 | 2007-09-17 | Infusion flow adjuster and liquid controlling valve thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201094782Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101905046A (en) * | 2010-08-30 | 2010-12-08 | 威海威高医用材料有限公司 | Micro-dose flow regulator |
| CN104857598A (en) * | 2014-03-17 | 2015-08-26 | 胡绍勤 | Double-scale accurate constant-speed and quantitative regulator for transfusion |
| WO2018072658A1 (en) * | 2016-10-20 | 2018-04-26 | 胡绍勤 | Flow regulating groove component |
-
2007
- 2007-09-17 CN CNU2007201755589U patent/CN201094782Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101905046A (en) * | 2010-08-30 | 2010-12-08 | 威海威高医用材料有限公司 | Micro-dose flow regulator |
| CN101905046B (en) * | 2010-08-30 | 2012-07-04 | 威海威高医用材料有限公司 | Micro-dose flow regulator |
| CN104857598A (en) * | 2014-03-17 | 2015-08-26 | 胡绍勤 | Double-scale accurate constant-speed and quantitative regulator for transfusion |
| WO2015139573A1 (en) * | 2014-03-17 | 2015-09-24 | 胡绍勤 | Double scale, precise, fixed speed and quantitative regulator for infusion |
| CN104857598B (en) * | 2014-03-17 | 2017-11-17 | 广州市健之堂医疗器械有限公司 | A kind of accurate constant speed quantitative adjuster of transfusion double scale |
| WO2018072658A1 (en) * | 2016-10-20 | 2018-04-26 | 胡绍勤 | Flow regulating groove component |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080806 |