CN102772842A - Safe and automatic hydraulic control opening and closing valve and infusion apparatus with safe and automatic hydraulic control opening and closing valve - Google Patents
Safe and automatic hydraulic control opening and closing valve and infusion apparatus with safe and automatic hydraulic control opening and closing valve Download PDFInfo
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- CN102772842A CN102772842A CN2012102844405A CN201210284440A CN102772842A CN 102772842 A CN102772842 A CN 102772842A CN 2012102844405 A CN2012102844405 A CN 2012102844405A CN 201210284440 A CN201210284440 A CN 201210284440A CN 102772842 A CN102772842 A CN 102772842A
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Abstract
The invention discloses a safe and automatic hydraulic control opening and closing valve, which is arranged in a dropping funnel. The safe and automatic hydraulic control opening and closing valve is characterized by comprising a valve body, a valve cover, an upper floating body and a sealing body, wherein the valve body comprises a frustum section; a liquid outlet hole on the valve body is fixedly connected with the liquid outlet hole in the dropping funnel; a through hole through which a floating body connection rod passes is arranged at the center position of the valve cover; the valve cover is locked on the valve body; the upper floating body is connected with the sealing body through a hollow floating body connection rod; the upper floating body is arranged outside the valve body; the sealing body forms a frustum shape and is arranged in the valve body, and the sealing surface on the sealing body and an inclined plane on the frustum section of the valve body are in contact to be sealed. The automatic hydraulic control opening and closing valve disclosed by the invention has good stopping effect, can conveniently release stopping, and can be continuously used.
Description
Technical field
The present invention relates to a kind ofly carry out venous transfusion to clinical patients and use medical apparatus and instruments, a kind of specifically safe automatic hydraulic opens and closes valve and has the transfusion device that this safe automatic hydraulic opens and closes valve
Background technology
When at present the patient being carried out venous transfusion, the disposable infusion set that is widely used mainly is made up of 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.The liquid level of need the person of accompanying and attending in infusion process paying close attention to medicinal liquid, otherwise when the liquid level of medicinal liquid is reduced to the dropper lower end, gas gets into the lower end, splashes into blood vessel like gas and is prone to cause air embolism, threat to life safety.Lead to malpractice.
In order to address the above problem the raising day by day with clinical requirement, produced some in succession and can be adapted to the transfusion device of special clinical requirement.Automatically the solution stopping transfusion device is exactly a kind of medical treatment consumptive materials that replaces the new disposable of general infusion set.Automatically the solution stopping transfusion device still need carry out the gravity transfusion, but its characteristics are that the air admission vein is avoided in solution stopping automatically automatically when the fast infusion of liquid is intact.
China utility model patent CN201020150443.6 has disclosed a kind of relief valve; Said relief valve places in the dropping funnel; It comprises ebonite accessory and flexible glue base; Said ebonite accessory comprises floating cup and the floating head that is connected with said floating cup, and said floating cup formation has opening floating cup cavity up, and said floating head is arranged at the top of said opening; Between said floating cup and said floating head, be provided with the clearance channel that can make in the floating cup of the liquid entering cavity, said floating head size is more than or equal to said floating cup cavity tip size; Said flexible glue base is arranged at said floating cup bottom.Mainly be to seal the intermediary tubing port down in dropping funnel bottom, prevent effectively to avoid blood back after blood transfusion and infusion from finishing through the flexible glue base.
China utility model patent CN201120147455.8 disclosed a kind of with in the disposable transfusion device of plug, form by transfusion device and Nei Sai, interior plug is in Murphy type burette, interior plug lower end is taper shape, and the lower end of Murphy type burette also is made into taper shape.During transfusion under the effect of liquid buoyancy, in the Murphy type burette lower end be conical in plug swim in the surface of liquid, 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 blocked.It mainly is the following backflow of bringing in prevention liquid of blocking dropper through plug in conical.
China utility model patent CN201120021131.X has disclosed a kind of unsteady container 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, and it is inner that this fluid pipe fitting one end protrudes into this dropping liquid accumulator tank; Should be connected with a sealing part in unsteady container below; This sealing part comprises a top-joining part and by this top-joining part limit past shirt rim portion that extends below of one, and this sealing part is fixed in the container below of floating with this top-joining part, when this unsteady container reduces along with liquid level; This top-joining part bottom surface meeting detent plug is in this fluid pipe fitting; This shirt rim portion is adsorbed in the peripheral buffer storage groove interior zone of this fluid pipe fitting simultaneously, makes this fluid pipe fitting of the complete coating absorption of this sealing part, in order to the safe infusion control of carrying out automatic dual sealing.
The sealing mechanism of the employing of solution stopping at present automatically is exactly nothing but above-mentioned three kinds of solutions, a kind ofly is utilized in sealing member driving fit and then liquid outlet blocked solution stopping bottom dropping funnel of establishing a dome shape in the buoyancy aid lower end; A kind of in addition is to establish a stopper through the buoyancy aid lower end, and when buoyancy aid descended by deadweight, the liquid outlet of blocking the dropping funnel bottom came solution stopping; At last a kind of is to realize solution stopping through the complete coating of sealing part drain pipe spare; Yet in actual application, find: all there is defective in these three kinds of modes, and processing is difficult for, and perhaps sealing effectiveness is all not really desirable in the practice, the automatic preferably solution stopping effect of very difficult realization.Therefore, be necessary this present situation is improved.
In view of the shortcoming of prior art, it is very ideal providing a kind of automatic hydraulic that has the convenient again simultaneously releasing detent plug of good detent plug effect and can use continuously to open and close transfusion device.
Summary of the invention
The object of the invention 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, one aspect of the present invention provides a kind of safe automatic hydraulic to open and close valve, and described safe automatic hydraulic opens and closes valve and places in the dropping funnel, comprising: valve body, valve gap, upper float and seal; Said valve body comprises a frustum section, and the liquid outlet on the said valve body is fixedly connected with liquid outlet in the dropping funnel; Said valve gap center is provided with the through hole that the buoyancy aid connecting rod passes through, and said valve gap snaps onto on the valve body; Said upper float is connected with the buoyancy aid connecting rod of seal through hollow, and said upper float places outside the valve body; Said 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 the power that makes progress all the time under buoyancy function; 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 at the center that is controlled at upper float and sealing member, is unlikely to the too high or off-center of sealing member and influences 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 through sealing in the sidewall realization, being different from the prior art; Seal through the inclined-plane, have the self-tightening effect; The action of gravity that upper float produces is on seal, and when liquid is low more, gravity is much, and sealing effectiveness is good more, and solution stopping backflow effect is good more;
When changing infusion bottle continuation transfusion like need, after liquid got into the exuberant dropping funnel of dropping funnel once more by the time, only with hand was pinched the lower end of dropping funnel by shaking lightly, and upper float drives the upper end that seal will float to 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 mutual snapping of lower house that the upper shell that Open Side Down and opening make progress, and lower house and upper shell form first confined space.
The confined space that forms on the above-mentioned seal more helps the keying that safe automatic hydraulic opens and closes valve, utilizes buoyancy to infuse again 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 following outer rim, and the diameter of last outer rim is greater than the diameter of following outer rim.
Further, above-mentioned valve body comprises shell of column, middle awl section and following inserting section, and following inserting section is plugged in the dropping funnel in the liquid outlet on the drain pan, and middle awl section contact realization and seals with seal.
This structure helps die sinking, processing; The fixed form of pegging graft is convenient installs.
Further, above-mentioned safe automatic hydraulic opens and closes valve and also comprises buoyancy aid, and following buoyancy aid is arranged between upper float and the seal; Upper float is connected through the buoyancy aid connecting rod with following buoyancy aid; Following buoyancy aid is connected through the seal connecting rod with seal.
The setting of following buoyancy aid utilizes buoyancy for opening safe automatic hydraulic keying valve one power source to be provided again.
Again further, above-mentioned upper float is an A shape; Following buoyancy aid comprises the following buoyancy aid body of W shape and the lid of frustum, and lid snaps onto in the said buoyancy aid body down; The buoyancy aid connecting rod upper end and the upper float snapping of hollow, peg graft with following buoyancy aid in the lower end; Wherein, form second closed cavity between above-mentioned lid and the following buoyancy aid body, above-mentioned buoyancy aid connecting rod and upper float form the 3rd closed cavity with the body of floating downward; Above-mentioned through hole periphery is provided with delivery hole.
Further, the inner chamber of above-mentioned middle awl section is coniform, and periphery is a pyramid-shaped, is provided with the interior outer lug boss of inside and outside valve body, extending between last shell of column and the middle awl section, and outer lug boss and the clamping of dropping funnel inwall are provided with an open-work at least on the middle awl 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 buoyancy aid connecting rod and cooperates belled extension.
Further, above-mentioned upper float is an A shape; Following buoyancy aid is a T shape, on the interior convex of external edge retaining in said valve body of floating downward; The buoyancy aid connecting rod upper end and the upper float snapping of hollow, peg graft with following buoyancy aid in the lower end; Wherein, buoyancy aid connecting rod and upper float form the 3rd closed cavity with the body of floating downward.
According to a further aspect in the invention, a kind of automatic solution stopping transfusion device is provided, has comprised the contact pin, dropping funnel, flow regulator and the entry needle that connect in order through tube for transfusion, wherein, above-mentioned stating is provided with in the dropping funnel according to above-mentioned described safe automatic hydraulic keying valve.
Except top described purpose, characteristic and advantage, other purpose, characteristic and advantage that the present invention has are with combining accompanying drawing to do further detailed explanation.
Description of drawings
Constitute this description a part, be used for further understanding accompanying drawing of the present invention and show the preferred embodiments of the present invention, and be used for explaining principle of the present invention with description.Among the figure:
Fig. 1 a is the structural representation that opens and closes valve according to the safe automatic hydraulic in the dropping funnel of the first embodiment of the present invention;
Fig. 1 b is the structural representation according to the dropping funnel drain pan of the first embodiment of the present invention;
Fig. 2 a is the structural representation that opens and closes valve according to the safe automatic hydraulic of the first embodiment of the present invention;
Fig. 2 b is the structural representation that opens and closes valve according to a kind of preferred safe automatic hydraulic of the first embodiment of the present invention;
Fig. 2 c is the structural representation that opens and closes valve according to the another kind of preferred safe automatic hydraulic of the first embodiment of the present invention;
Fig. 2 d is the structural representation that the safe automatic hydraulic shown in Fig. 2 c opens and closes seal in the valve;
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 that safe automatic hydraulic according to the present invention opens and closes valve body in the valve;
Fig. 4 a is the main TV structure sketch map that safe automatic hydraulic according to the present invention opens and closes valve gap in the valve;
Fig. 4 b is the cross section structure sketch map that safe automatic hydraulic according to the present invention opens and closes valve gap in the valve;
Fig. 5 is the structural representation that safe automatic hydraulic according to the present invention opens and closes upper float in the valve;
Fig. 6 is according to reinforcing rib structure sketch map in the upper float in the safe automatic hydraulic keying valve according to the present invention;
Fig. 7 is the structural representation of safe automatic hydraulic keying valve according to a second embodiment of the present invention;
Fig. 8 is the structural representation of seal in the safe automatic hydraulic keying valve according to a second embodiment of the present invention;
Fig. 9 is the another kind of structural representation of seal in the safe automatic hydraulic keying valve according to a second embodiment of the present invention;
Figure 10 is the structural representation of seal connector in the safe automatic hydraulic keying valve according to a second embodiment of the present invention;
Figure 11 is the structural representation of following buoyancy aid in the safe automatic hydraulic keying valve according to a second embodiment of the present invention;
Figure 12 a is that according to a second embodiment of the present invention safe automatic hydraulic opens and closes in the valve buoyancy aid main body structure sketch map under the W shape;
Figure 12 b is the structural representation of looking up that according to a second embodiment of the present invention safe automatic hydraulic opens and closes in the valve buoyancy aid body under the W shape;
Figure 12 c is that according to a second embodiment of the present invention safe automatic hydraulic opens and closes in the valve plan structure sketch map of buoyancy aid body under the W shape;
Figure 13 a is the structural representation of the lid of frustum in the safe automatic hydraulic keying valve according to a second embodiment of the present invention;
Figure 13 b is the plan structure sketch map of the lid of frustum in the safe automatic hydraulic keying valve according to a second embodiment of the present invention;
Figure 14 a is the structural representation of buoyancy aid connecting rod in the safe automatic hydraulic keying valve according to a second embodiment of the present invention;
Figure 14 b is the structural representation of looking up that according to a second embodiment of the present invention safe automatic hydraulic opens and closes buoyancy aid connecting rod in the valve;
Figure 15 is the structural representation that the interior safe automatic hydraulic of the dropping funnel of a third embodiment in accordance with the invention opens and closes valve;
Figure 16 is the structural representation that the safe automatic hydraulic of a third embodiment in accordance with the invention opens and closes valve;
Figure 17 a is the structural representation that the safe automatic hydraulic of a third embodiment in accordance with the invention opens and closes valve body in the valve;
Figure 17 b is the plan structure sketch map that the safe automatic hydraulic of a third embodiment in accordance with the invention opens and closes valve body in the valve;
Figure 17 c is the structural representation of looking up that the safe automatic hydraulic of a third embodiment in accordance with the invention opens and closes valve body in the valve;
Figure 18 is the structural representation that the safe automatic hydraulic of a third embodiment in accordance with the invention opens and closes valve gap in the valve;
Figure 19 is the structural representation that the safe automatic hydraulic of a third embodiment in accordance with the invention opens and closes upper float in the valve;
Figure 20 is the structural representation that the safe automatic hydraulic of a third embodiment in accordance with the invention opens and closes buoyancy aid connecting rod in the valve;
Figure 21 is the structural representation of buoyancy aid under the safe automatic hydraulic of a third embodiment in accordance with the invention opens and closes in the valve;
Figure 22 is the structural representation that safe automatic hydraulic according to the present invention opens and closes sealing member connecting rod in the valve; And
Figure 23 is the sketch map that the safe automatic hydraulic of having of a fourth embodiment in accordance with the invention opens and closes the tube for transfusion of valve.
Reference numeral is expressed as among the figure: 100-safety automatic hydraulic opens and closes valve; The 101-valve body; The last 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 last 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-first closed cavity; 109-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 that under the situation of not conflicting, embodiment and the characteristic among the embodiment among the application can make up each other.Below with reference to accompanying drawing and combine embodiment to specify the present invention.
Below in conjunction with accompanying drawing embodiments of the invention are elaborated, but the multitude of different ways that the present invention can be defined by the claims and cover is implemented.
First embodiment
To Fig. 6, present embodiment provides a kind of safe automatic hydraulic as shown in Figure 1 to open and close valve 100 with reference to figure 1a, and described safe automatic hydraulic opens and closes valve and places in the dropping funnel 200, and it comprises: valve body 101, valve gap 102, upper float 103 and seal 106; Said valve body 101 comprises a frustum section 1017, liquid outlet 1018 on the said 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 said valve gap 102 snaps onto on the valve body 101; Said upper float 103 is connected with the buoyancy aid connecting rod 104 of seal 106 through hollow, and said upper float 103 places outside the valve body 101; Said 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 a curved surface, and sealing surface 1063 is tangent with inclined-plane 10171, realizes the linear sealing on the curved surface, such good sealing effect, also easy simultaneously opening encapsulation body.
Preferably, the seal 106 shown in Fig. 2 c and Fig. 2 d is formed by upper shell 1064 that Open Side Down shown in Fig. 2 e and the lower house 1065 mutual snappings that the opening shown in Fig. 2 f makes progress, and said lower house 1065 forms first closed cavity 108 with upper shell 1064.
Preferably, said 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 awl section 1012 and following inserting section 1013, and said inserting section 1013 down is plugged in the dropping funnel 200 on the drain pan in 201 the liquid outlet 201, said in awl section 1012 contact realization with seal 106 and seal.Awl section 1012 has same function with frustum section 1017 structures in aforementioned in above-mentioned.
Through hole 1021 peripheries on the lid 102 as shown in Figs. 4a and 4b are provided with delivery hole 1022.
Like Fig. 5 upper float 103 is A shape, has the structure of cross reinforcement 1031 shown in Figure 6.
Safe automatic hydraulic of the present invention opens and closes the work process of valve:
In the full of liquid, upper float and sealing member are under buoyancy function in the dropping funnel in transfusion device; Remain straight up; Sealing member is also away from the body wall inclined-plane, and liquid flows in the valve body through the delivery hole on the valve gap (also comprising through hole), because airtight being plugged in the liquid outlet in the dropping funnel of following inserting section of valve body; So liquid can only flow into the liquid outlet in the dropping funnel through the liquid outlet on the valve body, thereby accomplish infusion process;
When the liquid level in the dropping funnel in transfusion device descends gradually, upper float and sealing member, under the effect of gravity, operation down earlier gradually, the complete and body wall inclined-plane realization sealing until sealing surface of sealing, thus lean on the gravity of self to realize automatic solution stopping;
When needs were infused again, liquid flowed in the valve body through delivery hole, and in the exuberant valve body of liquid, under buoyancy function, seal can leave the inclined-plane of body wall; If good sealing effect is as long as rock, by buoyancy gently; Seal also can leave the inclined-plane of body wall fast, and then liquid is descending, thereby infuses again.
Second embodiment
Referring to figs. 3 to Figure 14 b, present embodiment provides a kind of safe automatic hydraulic as shown in Figure 7 to open and close valve 100, and this safe automatic hydraulic opens and closes 100 valves and places in the dropping funnel 200, and it comprises: valve body 101, valve gap 102, following 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 following outer rim 10612, and the diameter of last outer rim 10611 is greater than the diameter of following outer rim 10612;
Shown in Figure 12 a, following buoyancy aid 105 lower ends are provided with center column 1051, and seal connector 107 1 ends 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 like 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 following inserting section 1013; Wherein, following inserting section 1013 airtight being plugged in the liquid outlet 202 in the dropping funnel 200, combine 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, are sealed and matched the upper end of buoyancy aid connecting rod 104 lower end plug-in unit infra buoyancy aids 105 with upper float 103 button edge 1032 as shown in Figure 5.
Present embodiment invention operation principle is following:
Form second closed cavity 109 between following 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 following buoyancy aid 105; These two cavitys are that 100 unlatchings of safe automatic hydraulic keying valve provide enough buoyancy.
The external edge 1061 of the flexible glue that seal 106 is provided with can seal with middle pyramid section 1012 driving fits on the valve body 101; Main inclined-plane 10171 by sealing surface 1063 on the seal 106 and middle awl 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; Present embodiment provides a kind of safe automatic hydraulic shown in figure 15 to open and close valve 100, and safe automatic hydraulic shown in figure 16 opens and closes valve 100 and places in the dropping funnel 200, comprising: valve body 101; Valve gap 102, upper float 103, following buoyancy aid 105 and seal 106; Valve body 101 shown in Figure 17 a comprises shell of column 1011, middle awl section 1012 and following inserting section 1013; Inner chamber with reference to the middle awl section 1012 shown in figure 17b and Figure 17 c is coniform; Periphery is a pyramid-shaped; Be provided with between last shell of column 1011 shown in Figure 17 a and the middle awl section 1012 to valve body 101 inside and outside inner convex platforms that extend 1015 and outer lug boss 1016; Described outer lug boss 1016 and dropping funnel 200 inwall clampings, described middle awl section 1012 is provided with four open-works 1014 that are evenly distributed; Following inserting section 1013 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 said valve body 101 is fixedly connected with liquid outlet 202 in the dropping funnel 200; Valve gap 102 centers 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 said valve gap 102 is provided with and cooperates belled extension 1022 with buoyancy aid connecting rod 104; Said valve gap 102 snaps onto on the valve body 101; Said buoyancy aid 105 down is arranged between upper float 103 and the seal 106, and said upper float 103 is connected with the buoyancy aid connecting rod 104 of following buoyancy aid 105 through hollow; Buoyancy aid connecting rod 104 upper ends of hollow shown in figure 20 and upper float 103 snappings, peg graft with following buoyancy aid 105 in the lower end; Said buoyancy aid 105 down is connected through seal connecting rod 107 with seal 106; Said upper float 103 places outside the valve body 101; Said seal 106 places in the valve body 101 with following buoyancy aid 105; Upper float 103 shown in figure 19 is an A shape; Following buoyancy aid 105 like Figure 21 is a T shape, and it is provided with center column 1051 in the center up and down; Said seal 106 is frustum; Seal connector 107 1 ends 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 like 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 said interior convex 1016 of external edge 1054 retainings in said valve body of floating downward; Wherein, said buoyancy aid connecting rod 104 forms the 3rd closed cavity 110 with upper float 103 and following 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 awl section 1012 contact realizes sealing, and described open-work 1014 is located on sealing surface 1063 and inclined-plane 10171 sealing stations.
Safe automatic hydraulic of the present invention opens and closes the work process of valve:
In the full of liquid, upper float and sealing member are under buoyancy function in the dropping funnel in transfusion device; Remain straight up, sealing member is also away from the body wall inclined-plane, and liquid is through the through hole on the valve gap; The slit of outer lug boss and the clamping of dropping funnel inwall and flow in the valve body with open-work on the valve body, because airtight being plugged in the liquid outlet in the dropping funnel of following inserting section of valve body, so; Liquid can only flow into the liquid outlet in the dropping funnel through the liquid outlet on the valve body, thereby accomplishes infusion process;
When the liquid level in the dropping funnel in transfusion device descends gradually, upper float and sealing member, under the effect of gravity, operation down earlier gradually, the complete and body wall inclined-plane realization sealing until sealing surface of sealing, thus lean on the gravity of self to realize automatic solution stopping;
When needs were infused again, liquid flowed in the dropper through the slit of outer lug boss and the clamping of dropping funnel inwall, flow in the valve body through the open-work on the valve body again, thus exuberant dropping funnel of liquid and valve body, under buoyancy function, seal can leave the inclined-plane of body wall; If good sealing effect is as long as rock, by buoyancy gently; Seal also can leave the inclined-plane of body wall fast, and then liquid is descending, thereby infuses again.
The 4th embodiment
Present embodiment provides the transfusion device that above-mentioned safe automatic hydraulic opens and closes valve 100 that has according to the invention shown in figure 23; It comprises contact pin, dropping funnel, flow regulator and the entry needle that connects in order through tube for transfusion, and the above-mentioned safe automatic hydraulic that has that in dropping funnel, is provided with opens and closes valve.
Carried out detailed elaboration in front because the safe automatic hydraulic of present embodiment opens and closes valve, no longer detailed at this.The miscellaneous part of tube for transfusion of the present invention is a prior art, also no longer details at this.
More than be merely the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a safe automatic hydraulic opens and closes valve, and described safe automatic hydraulic opens and closes valve and places in the dropping funnel, it is characterized in that, comprising: valve body, valve gap, upper float and seal; Said valve body comprises a frustum section, and the liquid outlet on the said valve body is fixedly connected with liquid outlet in the dropping funnel; Said valve gap center is provided with the through hole that the buoyancy aid connecting rod passes through, and said valve gap snaps onto on the valve body; Said upper float is connected with the buoyancy aid connecting rod of seal through hollow, and said upper float places outside the valve body; Said 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. safe automatic hydraulic according to claim 1 opens and closes valve, and 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. safe automatic hydraulic according to claim 1 opens and closes valve, it is characterized in that: described seal is formed by the mutual snapping of lower house that the upper shell that Open Side Down and opening make progress, and said lower house and upper shell form first closed cavity.
4. safe automatic hydraulic according to claim 3 opens and closes valve, and it is characterized in that: said seal lower house is the flexible glue body.
5. safe automatic hydraulic according to claim 1 opens and closes valve; It is characterized in that: described valve body comprises shell of column, middle awl section and following inserting section; Described down inserting section is plugged in the dropping funnel in the liquid outlet on the drain pan, said in the awl section contact realization with seal and seals.
6. safe automatic hydraulic according to claim 5 opens and closes valve, it is characterized in that: said safe automatic hydraulic opens and closes valve and also comprises buoyancy aid, and said buoyancy aid down is arranged between upper float and the seal; Said upper float is connected through the buoyancy aid connecting rod with following buoyancy aid; Said buoyancy aid down is connected through the seal connecting rod with seal.
7. safe automatic hydraulic according to claim 6 opens and closes valve, and it is characterized in that: described upper float is an A shape; Described buoyancy aid down comprises the following buoyancy aid body of W shape and the lid of frustum, and said lid snaps onto in the said buoyancy aid body down;
The buoyancy aid connecting rod upper end and the upper float snapping of described hollow, peg graft with following buoyancy aid in the lower end; Wherein, said lid and said second closed cavity that forms between the buoyancy aid body down, said buoyancy aid connecting rod and upper float form the 3rd closed cavity with the body of floating downward; Said through hole periphery is provided with delivery hole.
8. safe automatic hydraulic according to claim 6 opens and closes valve; It is characterized in that: the inner chamber of awl section is coniform in described; Periphery is a pyramid-shaped; Said going up between shell of column and the middle awl section is provided with the interior outer lug boss of inside and outside valve body, extending, and described outer lug boss and the clamping of dropping funnel inwall are provided with an open-work on the described middle awl section at least; Described open-work is located on the sealing station on sealing surface and inclined-plane; Through hole on the said valve gap is provided with the buoyancy aid connecting rod and cooperates belled extension.
9. safe automatic hydraulic according to claim 8 opens and closes valve, and it is characterized in that: said upper float is an A shape; Described buoyancy aid down is a T shape, on the said interior convex of external edge retaining in said valve body of floating downward; The buoyancy aid connecting rod upper end and the upper float snapping of described hollow, peg graft with following buoyancy aid in the lower end; Wherein, said buoyancy aid connecting rod and upper float form the 3rd closed cavity with the body of floating downward.
10. an automatic solution stopping transfusion device is characterized in that, comprises the contact pin, dropping funnel, flow regulator, the entry needle that connect in order through tube for transfusion, wherein, is provided with in the said dropping funnel according to each described hydraulic control opening and closing mechanism in the claim 1 to 9.
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| CN201210284440.5A CN102772842B (en) | 2012-08-06 | 2012-08-06 | Safe and automatic hydraulic control opening and closing valve and infusion apparatus with safe and automatic hydraulic control opening and closing valve |
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| CN201210284440.5A CN102772842B (en) | 2012-08-06 | 2012-08-06 | Safe and automatic hydraulic control opening and closing valve and infusion apparatus with safe and automatic hydraulic control opening and closing valve |
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| CN102772842A true CN102772842A (en) | 2012-11-14 |
| CN102772842B CN102772842B (en) | 2014-04-23 |
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| CN201210284440.5A Expired - Fee Related CN102772842B (en) | 2012-08-06 | 2012-08-06 | Safe and automatic hydraulic control opening and closing valve and infusion apparatus with safe and automatic hydraulic control opening and closing valve |
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| CN103083752A (en) * | 2013-01-30 | 2013-05-08 | 戴建达 | Automatic solution stopping mechanism and infusion apparatus with the same |
| CN107754041A (en) * | 2017-12-05 | 2018-03-06 | 来奉田 | A kind of stomach rinse-system |
| CN108525068A (en) * | 2018-06-14 | 2018-09-14 | 张彬 | A kind of intelligent infusion device and transfusion system |
| CN108601888A (en) * | 2016-02-05 | 2018-09-28 | 伯尔拉工业有限公司 | For medical treatment injection or the bottom valve of the drip chamber of infusion device |
| CN109481795A (en) * | 2018-12-29 | 2019-03-19 | 四川普瑞斯生物科技有限公司 | The dual liquid that stops of one kind is from exhaust, safety dropping funnel |
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| KR20180109882A (en) * | 2016-02-05 | 2018-10-08 | 인두스트리에 볼라 에스.피.에이. | Foot valve for drip chamber of medical infusion or transfusion device |
| JP2019503781A (en) * | 2016-02-05 | 2019-02-14 | インドゥストリー・ボルラ・ソシエタ・ペル・アチオニＩｎｄｕｓｔｒｉｅ Ｂｏｒｌａ Ｓ．ｐ．Ａ． | Foot valve for drip chamber of medical infusion or blood transfusion device |
| US20190060560A1 (en) * | 2016-02-05 | 2019-02-28 | Industrie Borla S.P.A. | Foot valve for drip chambers of medical infusion or transfusion apparatuses |
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| KR102637871B1 (en) * | 2016-02-05 | 2024-02-16 | 인두스트리에 볼라 에스.피.에이. | Foot valves for drip chambers in medical infusion or transfusion devices |
| CN107754041A (en) * | 2017-12-05 | 2018-03-06 | 来奉田 | A kind of stomach rinse-system |
| CN108525068A (en) * | 2018-06-14 | 2018-09-14 | 张彬 | A kind of intelligent infusion device and transfusion system |
| CN109481795A (en) * | 2018-12-29 | 2019-03-19 | 四川普瑞斯生物科技有限公司 | The dual liquid that stops of one kind is from exhaust, safety dropping funnel |
| CN109481795B (en) * | 2018-12-29 | 2023-12-19 | 四川普瑞斯生物科技有限公司 | Double liquid-stopping self-exhausting safety dropping funnel |
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