CN202682478U - Safe automatic hydraulic-control starting-stopping valve and infusion apparatus having the same - Google Patents
Safe automatic hydraulic-control starting-stopping valve and infusion apparatus having the same Download PDFInfo
- Publication number
- CN202682478U CN202682478U CN 201220386251 CN201220386251U CN202682478U CN 202682478 U CN202682478 U CN 202682478U CN 201220386251 CN201220386251 CN 201220386251 CN 201220386251 U CN201220386251 U CN 201220386251U CN 202682478 U CN202682478 U CN 202682478U
- Authority
- CN
- China
- Prior art keywords
- buoyancy aid
- liquid
- seal
- valve body
- valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Float Valves (AREA)
Abstract
The utility model discloses a safe automatic hydraulic-control starting-stopping valve and an infusion apparatus having the same, wherein the safe automatic hydraulic-control starting-stopping valve is arranged in a drip bucket and is characterized in that the hydraulic-control starting-stopping valve comprises a valve body, a valve cover, an upper floating body and a sealing body; the valve body comprises a frustum section; a liquid outlet hole on the valve body is fixedly connected with a liquid outlet hole in the drip bucket; a through hole for passing through a floating-body connecting bar is mounted in a central position of the valve cover; the valve cover is buckled on the valve body; the upper floating body is connected with the sealing body by the hollow floating-body connecting bar; the upper floating body is disposed outside of the valve body; the sealing body is a frustum shape and is arranged in the valve body; and a sealing surface on the sealing body is contacted with an inclined surface of the frustum section of the valve body to realize sealing. The starting-stopping valve provided by the utility model has an excellent stopping effect and is convenient to release stopping and can be continually used for the automatic hydraulic-control starting-stopping infusion apparatus.
Description
Technical field
This utility model relates to and a kind ofly carries out the venous transfusion medical apparatus and instruments to clinical patients, specifically a kind of safety automation liquid-controlled open-close valve and have the transfusion device of this safety automation liquid-controlled open-close valve.
Background technology
When at present the patient being carried out venous transfusion, be widely used disposable infusion set, mainly formed by bottle plug puncture unit, air inlet device, dropping funnel, flow regulator, liquid medicine filter, venoclysis needle and some connecting ducts.Under the atmospheric pressure effect, the thinner infusion tube of liquid runs down flows into dropping funnel in the bottle, and when dropping funnel water column pressure during greater than venous pressure, the liquid runs down flexible pipe in the bottle flows into vein.In infusion process, need the person of accompanying and attending to pay close attention to the liquid level of medicinal liquid, otherwise, be down to the dropper lower end when the liquid level of medicinal liquid, gas enters the lower end, splashes into blood vessel such as gas and easily causes air embolism, threat to life safety.Lead to malpractice.
In order to address the above problem the day by day raising with clinical requirement, in succession produced some and can be adapted to the transfusion device of special clinical requirement.Automatic liquid-stopping transfusion apparatus is exactly a kind of medical treatment consumptive materials that replaces the new disposable of general infusion set.Automatic liquid-stopping transfusion apparatus still needs to carry out gravity infusion, but its characteristics be when the fast infusion of liquid is complete, can automatic liquid-stopping, automatically avoid air to enter vein.
Chinese utility model patent CN201020150443.6 has disclosed a kind of relief valve, described relief valve places in the dropping funnel, it comprises ebonite accessory and flexible glue base, described ebonite accessory comprises floating cup and the floating head that is connected with described floating cup, described floating cup formation has opening up floating cup cavity, described floating head is arranged at the top of described opening, be provided with between described floating cup and described floating head and can make liquid enter clearance channel in the floating cup cavity, described floating head size is more than or equal to described floating glass of cavity tip size; Described flexible glue base is arranged at described floating cup bottom.Mainly be to seal the middle lower tubing port in dropping funnel bottom by the flexible glue base, prevent the complete rear blood back of effectively avoiding of blood transfusion and infusion.
Chinese utility model patent CN201120147455.8 has disclosed a kind of disposable transfusion device with interior plug, is comprised of transfusion device and Nei Sai, and interior plug is in Murphy type burette, and it is conical that interior plug lower end is, and the lower end of Murphy type burette also is made into taper shape.Under the effect of liquid buoyancy, the lower end is the surface that conical interior plug swims in liquid in the Murphy type burette during transfusion, and when liquid all was totally lost, interior plug had just dropped to the lower end of Murphy type burette, and Murphy type burette filled in fully blocks.It mainly is the lower backflow of bringing in prevention liquid of blocking dropper by conical interior plug.
Chinese utility model patent CN201120021131.X has disclosed a kind of floating vessel of safe infusion automatic water stopping, be arranged in the dropping liquid accumulator tank, this dropping liquid accumulator tank bottom has a fluid pipe fitting, it is inner that this fluid pipe fitting one end protrudes into this dropping liquid accumulator tank, this floating vessel below is connected with a sealing part, this sealing part comprises that a top-joining part and is by the shirt rim section of this top-joining part limit one toward downward-extension, this sealing part is fixed in the floating vessel below with this top-joining part, when this floating vessel reduces along with liquid level, this top-joining part bottom surface meeting detent plug is in this fluid pipe fitting, this shirt rim section is adsorbed in the buffer storage groove interior zone of this fluid pipe fitting periphery simultaneously, make the complete coating of this sealing part adsorb this fluid pipe fitting, in order to the safe infusion control of carrying out automatic dual sealing.
At present the sealing mechanism of the employing of automatic liquid-stopping is exactly nothing but above-mentioned three kinds of solutions, and a kind of utilization is established the sealing member of a dome shape and blocked to end liquid with dropping funnel bottom driving fit and then with liquid outlet in the buoyancy aid lower end; Another is to establish a stopper by the buoyancy aid lower end, and when buoyancy aid descended by deadweight, the liquid outlet of blocking the dropping funnel bottom came only liquid; At last a kind of is to realize only liquid by the complete coating of sealing part drain pipe spare; Yet find in actual application: all there is defective in these three kinds of modes, and processing is difficult for, and perhaps sealing effectiveness is all not bery desirable in the practice, and very difficult realization is the automatic liquid-stopping effect preferably.Therefore, be necessary this present situation is improved.
In view of the shortcoming of prior art, provide a kind of have good detent plug effect simultaneously again the convenient automatic hydraulic of removing detent plug and can using continuously to open and close transfusion device be ideal.
The utility model content
This utility model purpose is to provide a kind of automatic hydraulic to open and close transfusion device, and it conveniently removes medicinal liquid detent plug state when satisfying the detent plug effect.
For this reason, this utility model provides a kind of safety automation liquid-controlled open-close valve on the one hand, and described safety automation liquid-controlled open-close valve places in the dropping funnel, comprising: valve body, valve gap, upper float and seal; Described valve body comprises a frustum section, and the liquid outlet on the described valve body is fixedly connected with liquid outlet in the dropping funnel; Described valve gap center is provided with the through hole that the buoyancy aid connecting rod passes through, and described valve gap snaps onto on the valve body; Described upper float is connected with the buoyancy aid connecting rod of seal by hollow, and described upper float places outside the valve body; Described seal is frustum, places in the valve body; Wherein, the sealing surface on the described seal contacts with inclined-plane on the valve body frustum section and realizes sealing.
When liquid was full of valve body, upper float had a power that makes progress all the time under the effect of buoyancy; Position-limiting action is played in the effect of valve gap, prevent the rising that upper float and sealing member are unlimited, simultaneously, the through hole setting on the valve gap also is the suitable position that upper float and sealing member is controlled at the center, is unlikely to the too high or off-center of sealing member and affects sealing effectiveness;
When liquid decline, the upper float that exposes liquid level will produce a downward gravity; Technique scheme mainly is to seal at liquid outlet or dropping funnel bottom by sealing in the sidewall realization, being different from the prior art; Seal by the inclined-plane, have the self-tightening effect; The action of gravity that upper float produces is on seal, and when liquid is lower, gravity is much, and sealing effectiveness is better, ends liquid backflow effect better;
When changing infusion bottle continuation transfusion such as need, after liquid enters the exuberant dropping funnel of dropping funnel again by the time, only need to pinch the lower end of dropping funnel by shaking lightly with hands, upper float drive seal will float to the upper end of valve body again.
Further, the inclined-plane of above-mentioned valve body frustum section is that curved surface contacts with the sealing surface of seal.
Employing curved surface sealing, the effect of can the minimizing dish inhaling, and seal has the self-tightening effect, improves sealing effectiveness.
Further, above-mentioned seal is formed by the upper shell that Open Side Down and the mutual snapping of lower house of opening upwards, and lower house and upper shell form the first confined space.
The confined space that forms on the above-mentioned seal more is conducive to the keying of safety automation liquid-controlled open-close valve, utilizes buoyancy again to infuse power source is provided for opening obturator.
Further, above-mentioned seal lower house is the flexible glue body.Adopt the flexible glue body to reach better sealing effectiveness.
As distortion, above-mentioned seal also can be provided with the external edge of flexible glue, and the external edge of this flexible glue comprises outer rim and lower outer rim, and the diameter of upper outer rim is greater than the diameter of lower outer rim.
Further, above-mentioned valve body comprises shell of column, middle cone section and lower inserting section, and lower inserting section is plugged in the dropping funnel in the liquid outlet on the drain pan, and middle cone section contact realization and seals with seal.
This structure is conducive to die sinking, processing; The fixed form of pegging graft is convenient installs.
Further, above-mentioned safety automation liquid-controlled open-close valve also comprises buoyancy aid, and lower buoyancy aid is arranged between upper float and the seal; Upper float is connected by the buoyancy aid connecting rod with lower buoyancy aid; Lower buoyancy aid is connected by the seal connecting rod with seal.
The setting of lower buoyancy aid utilizes buoyancy to provide again a power source for opening the safety automation liquid-controlled open-close valve.
Again further, above-mentioned upper float is A shape; Lower buoyancy aid comprises the lower buoyancy aid body of W shape and the lid of frustum, and lid snaps onto in the described lower buoyancy aid body; Buoyancy aid connecting rod upper end and the upper float snapping of hollow, lower end and lower buoyancy aid are pegged graft; Wherein, form the second closed cavity between above-mentioned lid and the lower buoyancy aid body, above-mentioned buoyancy aid connecting rod and upper float and the body of floating downward form the 3rd closed cavity; Above-mentioned through hole periphery is provided with delivery hole.
Further, the inner chamber of above-mentioned middle cone section is coniform, and periphery is pyramid-shaped, is provided with the interior outer lug boss of extension in the valve body between upper shell of column and the middle cone section, and outer lug boss and the clamping of dropping funnel inwall are provided with an open-work at least on the middle cone section; Described open-work is located on the sealing station on sealing surface and inclined-plane; Through hole on the valve gap is provided with the extension that cooperates socket with the buoyancy aid connecting rod.
Further, above-mentioned upper float is A shape; Lower buoyancy aid is T shape, on the interior convex of external edge gear in described valve body of floating downward; Buoyancy aid connecting rod upper end and the upper float snapping of hollow, lower end and lower buoyancy aid are pegged graft; Wherein, buoyancy aid connecting rod and upper float and the body of floating downward form the 3rd closed cavity.
According on the other hand of the present utility model, a kind of automatic liquid-stopping transfusion apparatus is provided, comprise the contact pin, dropping funnel, flow regulator and the entry needle that connect in turn by tube for transfusion, wherein, above-mentioned stating is provided with in the dropping funnel according to above-mentioned described safety automation liquid-controlled open-close valve.
Except purpose described above, feature and advantage, other purpose, feature and the advantage that the utlity model has are described in further detail in connection with accompanying drawing.
Description of drawings
Consist of this description a part, be used for further understanding accompanying drawing of the present utility model and show preferred embodiment of the present utility model, and be used for illustrating principle of the present utility model with description.Among the figure:
Fig. 1 a is the structural representation according to the safety automation liquid-controlled open-close valve in the dropping funnel of the first embodiment of the present utility model;
Fig. 1 b is the structural representation according to the dropping funnel drain pan of the first embodiment of the present utility model;
Fig. 2 a is the structural representation according to the safety automation liquid-controlled open-close valve of the first embodiment of the present utility model;
Fig. 2 b is the structural representation according to a kind of preferred safety automation liquid-controlled open-close valve of the first embodiment of the present utility model;
Fig. 2 c is the structural representation according to the another kind of preferred safety automation liquid-controlled open-close valve of the first embodiment of the present utility model;
Fig. 2 d is the structural representation of seal in the safety automation liquid-controlled open-close valve shown in Fig. 2 c;
Fig. 2 e is the structural representation of upper shell in the seal shown in Fig. 2 d;
Fig. 2 f is the structural representation of lower house in the seal shown in Fig. 2 d;
Fig. 3 is the structural representation according to valve body in the safety automation liquid-controlled open-close valve of the present utility model;
Fig. 4 a is the main TV structure schematic diagram according to valve gap in the safety automation liquid-controlled open-close valve of the present utility model;
Fig. 4 b is the cross section structure schematic diagram according to valve gap in the safety automation liquid-controlled open-close valve of the present utility model;
Fig. 5 is the structural representation according to upper float in the safety automation liquid-controlled open-close valve of the present utility model;
Fig. 6 is according to reinforcing rib structure schematic diagram in the upper float in the safety automation liquid-controlled open-close valve of the present utility model;
Fig. 7 is the structural representation according to the safety automation liquid-controlled open-close valve of the second embodiment of the present utility model;
Fig. 8 is the structural representation according to seal in the safety automation liquid-controlled open-close valve of the second embodiment of the present utility model;
Fig. 9 is the another kind of structural representation according to seal in the safety automation liquid-controlled open-close valve of the second embodiment of the present utility model;
Figure 10 is the structural representation according to seal connector in the safety automation liquid-controlled open-close valve of the second embodiment of the present utility model;
Figure 11 is the structural representation according to lower buoyancy aid in the safety automation liquid-controlled open-close valve of the second embodiment of the present utility model;
Figure 12 a is the structural representation according to buoyancy aid body under the W shape in the safety automation liquid-controlled open-close valve of the second embodiment of the present utility model;
Figure 12 b is the structural representation of looking up according to buoyancy aid body under the W shape in the safety automation liquid-controlled open-close valve of the second embodiment of the present utility model;
Figure 12 c is the plan structure schematic diagram according to buoyancy aid body under the W shape in the safety automation liquid-controlled open-close valve of the second embodiment of the present utility model;
Figure 13 a is the structural representation according to the lid of frustum in the safety automation liquid-controlled open-close valve of the second embodiment of the present utility model;
Figure 13 b is the plan structure schematic diagram according to the lid of frustum in the safety automation liquid-controlled open-close valve of the second embodiment of the present utility model;
Figure 14 a is the structural representation according to buoyancy aid connecting rod in the safety automation liquid-controlled open-close valve of the second embodiment of the present utility model;
Figure 14 b is the structural representation of looking up according to buoyancy aid connecting rod in the safety automation liquid-controlled open-close valve of the second embodiment of the present utility model;
Figure 15 is the structural representation according to the safety automation liquid-controlled open-close valve in the dropping funnel of the 3rd embodiment of the present utility model;
Figure 16 is the structural representation according to the safety automation liquid-controlled open-close valve of the 3rd embodiment of the present utility model;
Figure 17 a is the structural representation according to valve body in the safety automation liquid-controlled open-close valve of the 3rd embodiment of the present utility model;
Figure 17 b is the plan structure schematic diagram according to valve body in the safety automation liquid-controlled open-close valve of the 3rd embodiment of the present utility model;
Figure 17 c is the structural representation of looking up according to valve body in the safety automation liquid-controlled open-close valve of the 3rd embodiment of the present utility model;
Figure 18 is the structural representation according to valve gap in the safety automation liquid-controlled open-close valve of the 3rd embodiment of the present utility model;
Figure 19 is the structural representation according to upper float in the safety automation liquid-controlled open-close valve of the 3rd embodiment of the present utility model;
Figure 20 is the structural representation according to buoyancy aid connecting rod in the safety automation liquid-controlled open-close valve of the 3rd embodiment of the present utility model;
Figure 21 is the structural representation according to lower buoyancy aid in the safety automation liquid-controlled open-close valve of the 3rd embodiment of the present utility model;
Figure 22 is the structural representation according to sealing member connecting rod in the safety automation liquid-controlled open-close valve of the present utility model; And
Figure 23 is the schematic diagram according to the tube for transfusion with safety automation liquid-controlled open-close valve of the 4th embodiment of the present utility model.
Reference numeral is expressed as among the figure: 100-safety automation liquid-controlled open-close valve; The 101-valve body; The upper shell of column of 1011-; Conical section among the 1012-; Inserting section under the 1013-; The 1014-open-work; The 1015-inner convex platform; The 1016-outer lug boss; 1017-frustum section; The 10171-inclined-plane; Liquid outlet on the 1018-valve body; The 102-valve gap; The 1021-through hole; The 1022-delivery hole; The 103-upper float; The 1031-reinforcement; 104-buoyancy aid connecting rod; Buoyancy aid under the 105-; The 1051-center column; Buoyancy aid body under the 1052-; The lid of 1053-frustum; The 1054-external edge of floating downward; The 106-seal; The external edge of 1061-flexible glue; The upper outer rim of 10611-; Outer rim under the 10612-; 1062-seat hole; The 1063-sealing surface; The 1064-upper shell; The 1065-lower house; 107-seal connecting rod; The 1071-annular groove; The 1072-plug; 108-the first closed cavity; 109-the second closed cavity; 110-the 3rd closed cavity; The 200-dropping funnel; 201-dropping funnel drain pan; Liquid outlet in the 202-dropping funnel;
The specific embodiment
Need to prove, in the situation that do not conflict, embodiment and the feature among the embodiment among the application can make up mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments this utility model in detail.
Below in conjunction with accompanying drawing embodiment of the present utility model is elaborated, but the multitude of different ways that this utility model can be defined by the claims and cover is implemented.
The first embodiment
To Fig. 6, the present embodiment provides a kind of safety automation liquid-controlled open-close valve 100 as shown in Figure 1 with reference to figure 1a, and described safety automation liquid-controlled open-close valve places in the dropping funnel 200, and it comprises: valve body 101, valve gap 102, upper float 103 and seal 106; Described valve body 101 comprises a frustum section 1017, the liquid outlet 1018 on the described valve body and liquid outlet 202 socket connections in the dropping funnel 200; Valve gap 102 centers shown in Fig. 4 a are provided with the through hole 1021 that buoyancy aid connecting rod 104 passes through, and described valve gap 102 snaps onto on the valve body 101; Described upper float 103 is connected with the buoyancy aid connecting rod 104 of seal 106 by hollow, and described upper float 103 places outside the valve body 101; Described seal 106 is frustum, places in the valve body 101; Wherein, the sealing surface 1063 on the described seal 106 contacts with the inclined-plane 10171 of valve body 101 frustum sections 1017 and realizes sealing.
Preferably, the inclined-plane 10171 of valve body 101 frustum sections 1017 contacts for curved surface with the sealing surface 1063 of seal 106 shown in Fig. 2 b.
The sealing surface 1063 of above-mentioned seal 106 is curved surface, and sealing surface 1063 and inclined-plane 10171 are tangent, realizes the linear sealing on the curved surface, such good sealing effect, and the while is easy opening encapsulation body also.
Preferably, the seal 106 shown in Fig. 2 c and Fig. 2 d is formed by the upper shell 1064 that Open Side Down shown in Fig. 2 e and the lower house 1065 mutual snappings of the opening upwards shown in Fig. 2 f, and described lower house 1065 forms the first closed cavity 108 with upper shell 1064.
Preferably, described seal 106 lower houses 1065 are the flexible glue body.
Preferably, valve body 101 as shown in Figure 3 comprises shell of column 1011, middle cone section 1012 and lower inserting section 1013, and described lower inserting section 1013 is plugged in the dropping funnel 200 on the drain pan in 201 the liquid outlet 201, and described middle cone section 1012 contacts realization with seal 106 and seals.Above-mentioned middle cone section 1012 has same function with frustum section 1017 structures in aforementioned.
Through hole 1021 peripheries on the lid 102 as shown in Figs. 4a and 4b are provided with delivery hole 1022.
Be A shape such as Fig. 5 upper float 103, have the structure of cross reinforcement 1031 shown in Figure 6.
The work process of safety automation liquid-controlled open-close valve of the present utility model:
Be full of in the liquid in the dropping funnel in transfusion device, upper float and sealing member, under the effect of buoyancy, remain straight up, sealing member is also away from the body wall inclined-plane, and liquid flows in the valve body by the delivery hole on the valve gap (also comprising through hole), because airtight being plugged in the liquid outlet in the dropping funnel of the lower inserting section of valve body, therefore liquid can only flow into liquid outlet in the dropping funnel by the liquid outlet on the valve body, thereby finishes infusion process;
When the liquid level in the dropping funnel in transfusion device descends gradually, upper float and sealing member, under action of gravitation, gradually first lower operation until sealing surface of sealing is complete and sealing is realized on the body wall inclined-plane, thereby has realized automatic liquid-stopping by the gravity of self;
When needs were infused again, liquid flowed in the valve body by delivery hole, and in the exuberant valve body of liquid, under the effect of buoyancy, seal can leave the inclined-plane of body wall; If good sealing effect is as long as rock gently virtue of buoyancy; Seal also can leave the inclined-plane of body wall fast, and then liquid is descending, thereby re-starts transfusion.
The second embodiment
Referring to figs. 3 to Figure 14 b, the present embodiment provides a kind of safety automation liquid-controlled open-close valve 100 as shown in Figure 7, and these safety automation fluid-control starting and stopping 100 valves place in the dropping funnel 200, and it comprises: valve body 101, valve gap 102, lower buoyancy aid 105, upper float 103 and seal 106; Valve body 101 is plugged in the dropping funnel 200 in the liquid outlet on the drain pan 201 202 (the part icon is not shown);
Preferably, as shown in Figure 9, the external edge 1061 of flexible glue comprises outer rim 10611 and lower outer rim 10612, and the diameter of upper outer rim 10611 is greater than the diameter of lower outer rim 10612;
Shown in Figure 12 a, lower buoyancy aid 105 lower ends are provided with center column 1051, and seal connector 107 1 ends as shown in figure 10 are provided with the annular groove 1071 of pegging graft and cooperating with center column 1051; Be provided with a hole 1062 such as Fig. 9 sealing member 106 upper ends, the other end of seal connector 107 is provided with the plug 1072 of pegging graft and cooperating with seat hole 1062;
As shown in Figure 3, valve body 101 comprises shell of column 1011, middle conical section 1012 and lower inserting section 1013, wherein, lower inserting section 1013 is airtight is plugged in the liquid outlet 202 in the dropping funnel 200, combines closely and realize sealing in the inclined-plane of the middle conical section 1012 on seal 106 and the valve body;
Buoyancy aid connecting rod 104 upper ends shown in Figure 14 a stretch out and are umbrella flange 1041, detain edge 1032 with upper float 103 as shown in Figure 5 and are sealed and matched, and buoyancy aid connecting rod 104 lower end plug-in units are in the upper end of lower buoyancy aid 105.
The present embodiment utility model operation principle is as follows:
Form the second closed cavity 109 between lower buoyancy aid body 1052 and the lid 1053; Form the 3rd closed cavity 110 with buoyancy aid connecting rod 104 and upper float 103 and lower buoyancy aid 105; These two cavitys are opened for safety automation liquid-controlled open-close valve 100 enough buoyancy are provided.
The external edge 1061 of the flexible glue that seal 106 is provided with can with valve body 101 on middle pyramid section 1012 driving fits sealing, main inclined-plane 10171 by the sealing surface 1063 on the seal 106 and middle cone section 1012 contacts realizes sealing, good sealing effect is opened also more laborsaving like this.
The 3rd embodiment
Arrive Figure 22 with reference to Figure 15, the present embodiment provides a kind of safety automation liquid-controlled open-close valve 100 as shown in figure 15, and safety automation liquid-controlled open-close valve 100 as shown in figure 16 places in the dropping funnel 200, comprising: valve body 101, valve gap 102, upper float 103, lower buoyancy aid 105 and seal 106; Valve body 101 shown in Figure 17 a comprises upper shell of column 1011, middle cone section 1012 and lower inserting section 1013; Inner chamber with reference to the middle cone section 1012 shown in figure 17b and Figure 17 c is coniform, periphery is pyramid-shaped, be provided with inner convex platform 1015 and outer lug boss 1016 to valve body 101 interior extensions between upper shell of column 1011 shown in Figure 17 a and the middle cone section 1012, described outer lug boss 1016 and dropping funnel 200 inwall clampings, described middle cone section 1012 is provided with four open-works 1014 that are evenly distributed; Lower inserting section 1013 as shown in figure 15 is plugged in the dropping funnel 200 in the liquid outlet on the drain pan 201 202, and the liquid outlet 1018 on the described valve body 101 is fixedly connected with liquid outlet 202 in the dropping funnel 200; Valve gap 102 centers as shown in figure 18 are provided with the through hole 1021 that buoyancy aid connecting rod 104 passes through, and the through hole 1021 on the described valve gap 102 is provided with the extension 1022 that cooperates socket with buoyancy aid connecting rod 104; Described valve gap 102 snaps onto on the valve body 101; Described lower buoyancy aid 105 is arranged between upper float 103 and the seal 106, and described upper float 103 is connected with the buoyancy aid connecting rod 104 of lower buoyancy aid 105 by hollow; Buoyancy aid connecting rod 104 upper ends of hollow as shown in figure 20 and upper float 103 snappings, lower end and lower buoyancy aid 105 are pegged graft; Described lower buoyancy aid 105 is connected by seal connecting rod 107 with seal 106; Described upper float 103 places outside the valve body 101; Described seal 106 and lower buoyancy aid 105 place in the valve body 101; Upper float 103 as shown in figure 19 is A shape; Lower buoyancy aid 105 such as Figure 21 is T shape, and it is provided with center column 1051 in the center up and down; Described seal 106 is frustum; Seal connector 107 1 ends as shown in figure 22 are provided with the annular groove 1071 of pegging graft and cooperating with center column 1051; Be provided with a hole 1062 such as Fig. 8 sealing member 106 upper ends, the other end of seal connector 107 is provided with the plug 1072 of pegging graft and cooperating with seat hole 1062; On the described interior convex 1016 of external edge 1054 gears in described valve body of floating downward; Wherein, described buoyancy aid connecting rod 104 forms the 3rd closed cavity 110 with upper float 103 and lower buoyancy aid 105; Wherein, the inclined-plane 10171 in the sealing surface 1063 on the described seal 106 and the valve body 101 on the cone section 1012 contact realizes sealing, and described open-work 1014 is located on sealing surface 1063 and inclined-plane 10171 sealing stations.
The work process of safety automation liquid-controlled open-close valve of the present utility model:
Be full of in the liquid in the dropping funnel in transfusion device, upper float and sealing member, under the effect of buoyancy, remain straight up, sealing member is also away from the body wall inclined-plane, liquid is by the through hole on the valve gap, the slit of outer lug boss and the clamping of dropping funnel inwall and and valve body on open-work flow in the valve body because airtight being plugged in the liquid outlet in the dropping funnel of the lower inserting section of valve body, therefore, liquid can only flow into liquid outlet in the dropping funnel by the liquid outlet on the valve body, thereby finishes infusion process;
When the liquid level in the dropping funnel in transfusion device descends gradually, upper float and sealing member, under action of gravitation, gradually first lower operation until sealing surface of sealing is complete and sealing is realized on the body wall inclined-plane, thereby has realized automatic liquid-stopping by the gravity of self;
When needs were infused again, liquid flowed in the dropper by the slit of outer lug boss and the clamping of dropping funnel inwall, flow in the valve body by the open-work on the valve body again, thus the exuberant dropping funnel of liquid and valve body, under the effect of buoyancy, seal can leave the inclined-plane of body wall; If good sealing effect is as long as rock gently virtue of buoyancy; Seal also can leave the inclined-plane of body wall fast, and then liquid is descending, thereby re-starts transfusion.
The 4th embodiment
The present embodiment provides the as shown in figure 23 transfusion device with above-mentioned safety automation liquid-controlled open-close valve 100 described in the utility model, it comprises contact pin, dropping funnel, flow regulator and the entry needle that connects in turn by tube for transfusion, and in dropping funnel, arrange have an above-mentioned safety automation liquid-controlled open-close valve.
Because the safety automation liquid-controlled open-close valve of the present embodiment elaborates in front, no longer describes in detail at this.The miscellaneous part of tube for transfusion of the present utility model is prior art, also no longer describes in detail at this.
Be preferred embodiment of the present utility model only below, be not limited to this utility model, for a person skilled in the art, this utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (10)
1. safety automation liquid-controlled open-close valve, described safety automation liquid-controlled open-close valve places in the dropping funnel, it is characterized in that, comprising: valve body, valve gap, upper float and seal; Described valve body comprises a frustum section, and the liquid outlet on the described valve body is fixedly connected with liquid outlet in the dropping funnel; Described valve gap center is provided with the through hole that the buoyancy aid connecting rod passes through, and described valve gap snaps onto on the valve body; Described upper float is connected with the buoyancy aid connecting rod of seal by hollow, and described upper float places outside the valve body; Described seal is frustum, places in the valve body; Wherein, the sealing surface on the described seal contacts with inclined-plane on the valve body frustum section and realizes sealing.
2. safety automation liquid-controlled open-close valve according to claim 1, it is characterized in that: the inclined-plane of described valve body frustum section is that curved surface contacts with the sealing surface of seal.
3. safety automation liquid-controlled open-close valve according to claim 1 is characterized in that: described seal is formed by the upper shell that Open Side Down and the mutual snapping of lower house of opening upwards, and described lower house and upper shell form the first closed cavity.
4. safety automation liquid-controlled open-close valve according to claim 3, it is characterized in that: described seal lower house is the flexible glue body.
5. safety automation liquid-controlled open-close valve according to claim 1, it is characterized in that: described valve body comprises shell of column, middle cone section and lower inserting section, described lower inserting section is plugged in the dropping funnel in the liquid outlet on the drain pan, and described middle cone section contact realization and seals with seal.
6. safety automation liquid-controlled open-close valve according to claim 5, it is characterized in that: described safety automation liquid-controlled open-close valve also comprises buoyancy aid, described lower buoyancy aid is arranged between upper float and the seal; Described upper float is connected by the buoyancy aid connecting rod with lower buoyancy aid; Described lower buoyancy aid is connected by the seal connecting rod with seal.
7. safety automation liquid-controlled open-close valve according to claim 6, it is characterized in that: described upper float is A shape; Described lower buoyancy aid comprises the lower buoyancy aid body of W shape and the lid of frustum, and described lid snaps onto in the described lower buoyancy aid body; Buoyancy aid connecting rod upper end and the upper float snapping of described hollow, lower end and lower buoyancy aid are pegged graft; Wherein, form the second closed cavity between described lid and the described lower buoyancy aid body, described buoyancy aid connecting rod and upper float and the body of floating downward form the 3rd closed cavity; Described through hole periphery is provided with delivery hole.
8. safety automation liquid-controlled open-close valve according to claim 6, it is characterized in that: the inner chamber of described middle cone section is coniform, periphery is pyramid-shaped, be provided with the interior outer lug boss of extension in the valve body between described upper shell of column and the middle cone section, described outer lug boss and the clamping of dropping funnel inwall are provided with an open-work on the described middle cone section at least; Described open-work is located on the sealing station on sealing surface and inclined-plane; Through hole on the described valve gap is provided with the extension that cooperates socket with the buoyancy aid connecting rod.
9. safety automation liquid-controlled open-close valve according to claim 8, it is characterized in that: described upper float is A shape; Described lower buoyancy aid is T shape, on the described interior convex of external edge gear in described valve body of floating downward; Buoyancy aid connecting rod upper end and the upper float snapping of described hollow, lower end and lower buoyancy aid are pegged graft; Wherein, described buoyancy aid connecting rod and upper float and the body of floating downward form the 3rd closed cavity.
10. an automatic liquid-stopping transfusion apparatus is characterized in that, comprises the contact pin, dropping funnel, flow regulator, the entry needle that connect in turn by tube for transfusion, wherein, is provided with according to claim 1 each described hydraulic control opening and closing mechanism in 9 in the described dropping funnel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220386251 CN202682478U (en) | 2012-08-06 | 2012-08-06 | Safe automatic hydraulic-control starting-stopping valve and infusion apparatus having the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220386251 CN202682478U (en) | 2012-08-06 | 2012-08-06 | Safe automatic hydraulic-control starting-stopping valve and infusion apparatus having the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202682478U true CN202682478U (en) | 2013-01-23 |
Family
ID=47538162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220386251 Expired - Lifetime CN202682478U (en) | 2012-08-06 | 2012-08-06 | Safe automatic hydraulic-control starting-stopping valve and infusion apparatus having the same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202682478U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102772842A (en) * | 2012-08-06 | 2012-11-14 | 戴建达 | Safe and automatic hydraulic control opening and closing valve and infusion apparatus with safe and automatic hydraulic control opening and closing valve |
| CN105126191A (en) * | 2015-08-19 | 2015-12-09 | 四川普瑞斯生物科技有限公司 | Automatic exhausting, liquid-stopping and blood return-preventing drip chamber |
-
2012
- 2012-08-06 CN CN 201220386251 patent/CN202682478U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102772842A (en) * | 2012-08-06 | 2012-11-14 | 戴建达 | Safe and automatic hydraulic control opening and closing valve and infusion apparatus with safe and automatic hydraulic control opening and closing valve |
| CN102772842B (en) * | 2012-08-06 | 2014-04-23 | 戴建达 | Safe and automatic hydraulic control opening and closing valve and infusion apparatus with safe and automatic hydraulic control opening and closing valve |
| CN105126191A (en) * | 2015-08-19 | 2015-12-09 | 四川普瑞斯生物科技有限公司 | Automatic exhausting, liquid-stopping and blood return-preventing drip chamber |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102772842B (en) | Safe and automatic hydraulic control opening and closing valve and infusion apparatus with safe and automatic hydraulic control opening and closing valve | |
| CN202605452U (en) | Automatic exhausting and liquid-stopping transfusion set | |
| CN202682478U (en) | Safe automatic hydraulic-control starting-stopping valve and infusion apparatus having the same | |
| CN202892522U (en) | Infusion device | |
| CN105561448A (en) | Liquid stopper | |
| CN203417366U (en) | Blood return preventing medical infusion set | |
| CN203619973U (en) | Bubble-proof and anti-blood-return infusion dripping bucket | |
| CN202508430U (en) | Cover for beverage container and beverage container with cover | |
| CN102755683A (en) | Infusion apparatus | |
| CN103432640A (en) | Anti-blood return medical infusion set | |
| CN103474614A (en) | Quantitative acid filling device | |
| CN206508351U (en) | A kind of automatic liquid-stopping dropping funnel | |
| CN206239813U (en) | A kind of automatic exhaust device and use its transfusion device | |
| CN203355050U (en) | Automatic safe opening and closing device and infusion device with same | |
| CN112522104B (en) | Mesenchymal stem cell culture container and culture method | |
| CN210277754U (en) | Milk bottle for opening aside breast | |
| CN100443129C (en) | Automatic balancing buoy type safe transfusion tube | |
| CN201286915Y (en) | Disposable self-closing liquid-keeping transfusion device with valve opening sac | |
| CN208552721U (en) | Automatic liquid-stopping dropping funnel | |
| CN203355005U (en) | Novel Murphy dripper infusion device | |
| CN203263916U (en) | Drip cup component for disposable infusion apparatus | |
| CN203090067U (en) | Drip chamber capable of automatically stopping liquid and infusion set with drip chamber capable of automatically stopping liquid | |
| CN201625277U (en) | Disposable safety infusion device with precision automatic liquid stopping function | |
| CN214762644U (en) | Multifunctional medical gas-liquid kettle | |
| CN206660209U (en) | A kind of automatic flow-stop infusion device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130123 Effective date of abandoning: 20140423 |
|
| RGAV | Abandon patent right to avoid regrant |