CN109481795A - The dual liquid that stops of one kind is from exhaust, safety dropping funnel - Google Patents
The dual liquid that stops of one kind is from exhaust, safety dropping funnel Download PDFInfo
- Publication number
- CN109481795A CN109481795A CN201811634489.2A CN201811634489A CN109481795A CN 109481795 A CN109481795 A CN 109481795A CN 201811634489 A CN201811634489 A CN 201811634489A CN 109481795 A CN109481795 A CN 109481795A
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- China
- Prior art keywords
- floating body
- dropping funnel
- exhaust
- upper float
- liquid
- Prior art date
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Links
- 239000007788 liquid Substances 0.000 title claims abstract description 65
- 230000009977 dual effect Effects 0.000 title claims abstract description 24
- 238000007667 floating Methods 0.000 claims abstract description 92
- 238000007789 sealing Methods 0.000 claims description 32
- 238000000034 method Methods 0.000 abstract description 10
- 230000008569 process Effects 0.000 abstract description 8
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000006073 displacement reaction Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 230000001954 sterilising effect Effects 0.000 abstract description 2
- 239000012530 fluid Substances 0.000 description 63
- 230000005484 gravity Effects 0.000 description 9
- 230000007423 decrease Effects 0.000 description 7
- 238000001802 infusion Methods 0.000 description 7
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 208000005189 Embolism Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 230000010412 perfusion Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/36—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests with means for eliminating or preventing injection or infusion of air into body
- A61M5/40—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests with means for eliminating or preventing injection or infusion of air into body using low-level float-valve to cut off media flow from reservoir
Abstract
The problem of solving existing planar film the invention discloses a kind of dual only liquid in assembly, sterilizing and use process from exhaust, safety dropping funnel, be easy to appear deformation displacement, influence the only liquid effect of dropping funnel.The present invention includes shell and floating body, inlet is arranged in the shell upper end, liquid outlet is arranged in the bottom of the shell, the floating body is located in the shell, the floating body includes upper float and the lower floating body that is detachably connected with the upper float, counterdie is arranged in the bottom of the lower floating body, the lower floating body includes plug division, the plug division includes plugboard and the column that is vertically set in the middle part of the plugboard, the column is axially through setting through-hole, the through-hole includes centre bore and side opening, the upper float includes central axis, the central axis is plugged in the centre bore.The present invention has many advantages, such as counterdie good airproof performance, and it is good that dropping funnel stops liquid effect.
Description
Technical field
The present invention relates to infusion apparatus technical fields, and in particular to the dual liquid that stops of one kind is from exhaust, safety dropping funnel.
Background technique
Dropping funnel is one of critical component of infusion apparatus, and the speed situation of medical fluid output can be observed by dropping funnel, can be with
Judge whether to block, whether medical fluid is finished equal important informations, is of great significance to the safety for guaranteeing transfusion outpatient.
But even if there is dropping funnel, also occur to notice the medical fluid feelings in dropping funnel in time due to negligence unavoidably
Condition, if not pulling out needle in time, will enter air when medical fluid is finished, if air enters blood vessel possibility along perfusion tube
Embolism is caused, may also result in death when serious, therefore, the dropping funnel that setting can stop liquid has important meaning for anticipating risk
Justice.
In order to solve this problem, there is a large amount of research, produce as Publication No. CN102813984B,
The patents such as CN102813983B, CN103800963B.
It in existing technology, is mostly that planar film is driven to be sealed to realize automatically to liquid outlet using float structure
Only liquid, but in a practical situation, because the influence of specific float structure and assembly technology, planar film are likely to occur between part
Gap influences final leakproofness, therefore, how to reinforce the fixation of planar film, guarantees that its leakproofness is that safe dropper needs overcome
The problem of.
Summary of the invention
The technical problems to be solved by the present invention are: existing planar film in assembly, sterilizing and use process, is easy
Now deformation displacement influences the only liquid effect of dropping funnel.
The present invention provides the dual liquid that stops of the one kind to solve the above problems from exhaust, safety dropping funnel.
The present invention is achieved through the following technical solutions:
For the dual only liquid of one kind from exhaust, safety dropping funnel, including shell and floating body, inlet is arranged in the shell upper end, described
Liquid outlet is arranged in the bottom of shell, and the floating body is located in the shell, the floating body include upper float and with the upper float
Counterdie is arranged in the bottom of the lower floating body being detachably connected, the lower floating body, and the lower floating body includes plug division, the plug division packet
The column for including plugboard and being vertically set in the middle part of the plugboard, the column is axially through setting through-hole, the through-hole
Including centre bore and side opening, the upper float includes central axis, and the central axis is plugged in the centre bore and realizes upper float
With the connection of lower floating body.
Design principle of the invention are as follows: through-hole is axially set in the column of lower floating body, the upper float setting is led to described
The matched central axis in hole, the central axis are plugged in centre bore, realize the connection of upper float and lower floating body and by counterdie, grafting
Plate and central axis form a seal chamber, also set up side opening in the axial direction of column, outside the side opening communication seals chamber and floating body
Because of seal chamber during on the one hand portion, such structure can prevent the central axial through-hole grafting in assembling process
Space reduces and generates pressure, and pressure generates expansion to counterdie, will cause the problem of counterdie falls off when serious；On the other hand, exist
It, can be to avoid the pressure of seal chamber is greater than negative pressure outside floating body and generates outside pressure to counterdie and becomes during negative pressure sterilizes
The problem of shape falls off.And the side opening is to run through from seal chamber to the top of column, and side opening is located under the top of the upper float
Side has certain gap with the inside top of the upper float, i.e., in the state for being blocked but not blocking, in infusion,
Medical fluid falls drop at the top of the upper float, will not enter side opening, in addition, the buoyancy that medical fluid generates to float in infusion
Body floating, side opening are always positioned at liquid level or more, do not have medical fluid and enter in seal chamber along side opening.
The preferred one kind of the present invention is dual, and only liquid is from exhaust, safety dropping funnel, and the lower floating body further includes annular base, the ring
The flange of the bottom setting horizontal direction of shape pedestal, the counterdie are placed on the flange, and the plugboard is caught in the ring
Shape pedestal fastens the counterdie.
Further, bulge loop is arranged in the bottom of the plugboard, and after the plugboard is caught in annular base, the bulge loop will
Counterdie withstands on the flange and forms close fixation to counterdie, and bulge loop, and cavity is formed between counterdie and central axis.
From exhaust, safety dropping funnel, the two sides of the side opening and the centre bore penetrate through the dual only liquid of the preferred one kind of the present invention,
In this way in assembling process, when central axis is plugged in the through-hole, air pressure be first plug division generate, due to side opening with
Through-hole connection, such central axis can be discharged by side opening immediately along the air pressure that through-hole insertion generates, and prevent air pressure in seal chamber
It is high and make the displacement of counterdie dilatancy etc., in addition, side opening is connected to through-hole, it, can be with one-step pore-creating when processing aperture, technique
Simply.
The dual liquid that stops of the preferred one kind of the present invention is from exhaust, safety dropping funnel, side of the size of the side opening from centre bore outward
To closing is progressively smaller until, the structure formed in this way can be vented well, and when occurring on medical fluid arrival side opening, in water
In the identical situation of surface tension, effective spherical radius when cutting-edge structure makes medical fluid drop enter side opening reduces, and needs to overcome
Additional pressure will increase so that medical fluid is difficult to enter side opening, play the role of Water-proof exhausting.
For the dual only liquid of the preferred one kind of the present invention from exhaust, safety dropping funnel, the lower end of the upper float is set as the arc of evagination
Structure, is arranged sealing ring between the inside of the upper float and the column, the diameter of the sealing ring is greater than the upper float
Bottom to the column on the outside of the distance between, such sealing ring can be fallen on its gap down between upper float and lower floating body
It blocks.
The dual only liquid of the preferred one kind of the present invention is provided with thin groove from exhaust, safety dropping funnel, the side wall of the column,
Medical fluid is finished fastly, and the medical fluid in dropping funnel is gradually reduced, and when the medical fluid outside floating body is lower than the liquid level in the floating body cavity, floats
Medical fluid in body cavity can slowly be flowed down along thin groove, can regulate and control floating body cavity Chinese medicine by the size and number of thin groove
The speed that liquid stream goes out.
Design principle of the invention are as follows: upper float is set to the arc-shaped structure of lower end convex, in arc-shaped structure
Middle placement sealing ring, when there is medical fluid in dropping funnel, floating body can float under the action of buoyancy, when floating at baffle ring, retaining ring
It will receive the limit of baffle ring and cannot continue to rise, at this point, medical fluid can enter in floating body cavity and lift sealing ring, sealing ring
On the outside of the column of the inside of the upper float and lower floating body between there are gap, medical fluid can continue into, until reach with
Liquid level outside floating body is identical, and when medical fluid gradually decreases, the medical fluid face outside floating body is gradually reduced, and floating body is under liquid level
Drop and decline, it is described close when buoyancy suffered by liquid level drops to the sealing ring is less than the sum of its gravity and upper liquid gravity
Seal ring can decline rapidly, close when sealing ring drops to the outer side contacts of the column with the inside of the upper float and lower floating body
Seal ring locks the medical fluid in floating body cavity, and since the presence of medical fluid increases the gravity of entire floating body, the floating body decline is more
Fastly, counterdie can be allowed to reach liquid outlet and closed, the stria being arranged on the column of the lower floating body becomes before medical fluid is flow to end
The flow pass of medical fluid in floating body cavity, medical fluid can slowly flow down along stria, even if in the case where counterdie sealing is not complete
The entrance that medical fluid alleviates air can be further flowed out.
And when subsequent needs continue infusion, new liquid is entered in dropping funnel, when liquid level reaches sealing ring, works as sealing ring
Gravity be greater than medical fluid buoyancy when, sealing ring is still within the state of opposing seal, and liquid not can enter or can only be a small amount of
Into at this point, the buoyancy that floating body is subject to is bigger relative to open cavity body structure, is conducive in upper float cavity based on air
Counterdie is detached from from liquid outlet.
The preferred a kind of dual only liquid of the present invention from exhaust, safety dropping funnel, the column be located at the inside of the upper float away from
Baffle is arranged in top from maximum, in this way by sealing ring under medical fluid buoyancy attainable maximum height be limited in it is floating
The size maximum of body cavity is conducive to medical fluid and enters.
Convex ribs are arranged from exhaust, safety dropping funnel, the lateral wall of the annular base in the dual only liquid of the preferred one kind of the present invention,
The convex ribs are at least 3 and are spaced apart, and the inner wall of convex ribs and the shell is small, so that floating body movable can be able to maintain again the beginning
It will not be deviated along shell up and down motion eventually, guarantee that counterdie is preferably sealed only liquid.
For the dual only liquid of the preferred one kind of the present invention from exhaust, safety dropping funnel, baffle ring, the floating is arranged in the inside of the shell
Retaining ring is arranged in the bottom of body, can prevent floating body from floating up to inlet and stopping dropping liquid in this way.
Further, the counterdie is silica gel.
The present invention have it is following the utility model has the advantages that
1. the present invention by the way that side opening is arranged in the column of lower floating body, when for assembling and negative pressure sterilize when exhaust, effectively
The problems such as preventing counterdie dilatancy to fall off.
2. side opening of the invention is connected to centre bore and is progressively smaller until closing from the direction of centre bore outward, this
Sample can retain enough aperture vents, and even if when having medical fluid to reach at the side opening, as cutting-edge structure makes
Medical fluid drop will enter side opening and need the additional pressure overcome big and increase the difficulty of medical fluid entrance, more preferably prevent medical fluid from entering.
3. the present invention sets the lower end of upper float to the arcuate structure of evagination, and sealing ring is arranged and realizes that medical fluid is floating
Caching in body cavity, the gravity for increasing floating body enable floating body to block liquid outlet earlier, while along the medical fluid of thin groove outflow
Play relaxation effect to preventing air from entering, in addition, when rejoining new medical fluid, the sealing ring can prevent medical fluid too early into
Enter in the floating body cavity and retain more long air, the buoyancy for increasing floating body is added conducive to medical fluid to preferably make counterdie
It is infused again from liquid outlet disengaging.
Detailed description of the invention
Attached drawing described herein is used to provide to further understand the embodiment of the present invention, constitutes one of the application
Point, do not constitute the restriction to the embodiment of the present invention.In the accompanying drawings:
Fig. 1 is the schematic cross-sectional view of the embodiment of the present invention one.
Fig. 2 is the elevational schematic view of the plug division of the embodiment of the present invention two.
Fig. 3 is the schematic cross-sectional view of the embodiment of the present invention three.
Fig. 4 is the positive structure diagram of the plug division of the embodiment of the present invention three.
Label and corresponding parts title in attached drawing:
1- shell, 2- upper float, 20- central axis, floating body under 3-, 30- plugboard, 300- bulge loop, 31- column, in 310-
Heart hole, 311- side opening, 32- annular base, 320- flange, 4- counterdie, 5- sealing ring, 6- baffle, 7- baffle ring, 8- retaining ring, 9- are convex
Muscle, the thin groove of 10-, 11- inlet, 12- liquid outlet.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below with reference to embodiment and attached drawing, to this
Invention is described in further detail, and exemplary embodiment of the invention and its explanation for explaining only the invention, are not made
For limitation of the invention.
Embodiment 1
For the dual only liquid of one kind from exhaust, safety dropping funnel, including shell 1 and floating body, inlet 11 is arranged in 1 upper end of shell,
Liquid outlet 12 is arranged in the bottom of the shell 1, and the floating body is located in the shell 1, the floating body include upper float 2 and with institute
The lower floating body 3 that upper float 2 is detachably connected is stated, counterdie 4 is arranged in the bottom of the lower floating body 3, and the lower floating body 3 includes grafting
Portion, the plug division include plugboard 30 and the column 31 for being vertically set on 30 middle part of the plugboard, and the column 31 is along axis
To through setting through-hole, the through-hole includes centre bore 310 and side opening 311, and the upper float 2 includes central axis 20, it is described in
Mandrel 20 is plugged in the connection that upper float 2 and lower floating body 3 are realized in the centre bore 310.
The centre bore 310 is arranged along the central axes of the column 31, and such floating body is able to maintain in entire motion process
Balance.
The top of the upper float 2 is set as circular arc forming head, can alleviate splashing of the medical fluid when dripping from inlet tube 11
Situation.
In the axial setting through-hole of the column 31 of lower floating body 3, the setting of upper float 2 and the matched central axis of the through-hole
20, the central axis 20 is plugged in centre bore 310, realizes the connection of upper float 2 and lower floating body 3 and by counterdie 4, plugboard 30
A seal chamber is formed with central axis 20, side opening 311, the 311 communication seals chamber of side opening are also set up in the axial direction of column 31
Outside floating body, such structure on the one hand can prevent in assembling process central axis 20 to during the through-hole grafting because
Space for seal chamber reduces and generates pressure, and pressure generates expansion to counterdie 4, will cause the problem of counterdie 4 falls off when serious；
On the other hand, negative pressure sterilize during, can to avoid the pressure of seal chamber be greater than floating body outside negative pressure and to counterdie 4 generate to
Outer pressure and deform the problem of falling off.And the side opening 311 is run through from seal chamber to the top of column 31, and side opening 311
Below the top of the upper float 2, there is certain gap with the inside top of the upper float 2, i.e., in being blocked but
The state not blocked, in infusion, medical fluid falls drop at the top of the upper float 2, will not enter side opening 311, in addition, defeated
When liquid, the buoyancy that medical fluid generates makes float, and side opening 311 is always positioned at liquid level or more, does not have medical fluid along side opening 311
It enters in seal chamber.
The lower floating body 3 further includes annular base 32, and flange 320, the counterdie 4 is arranged in the bottom of the annular base 32
It is placed on the flange 320, the plugboard 30 is caught in the annular base 32 and fastens the counterdie 4.
Bulge loop 300, after the plugboard 30 is caught in annular base 32, the bulge loop is arranged in the bottom of the plugboard 30
Counterdie 4 is withstood on the flange 320 and forms close fixation to counterdie 4 by 300, and bulge loop 300, counterdie 4 and central axis 20 it
Between form cavity.
The two sides of the side opening 311 and the centre bore 310 penetrate through, in this way in assembling process, by 20 grafting of central axis
When in the through-hole, air pressure is generated in plug division first, and since side opening 311 is connected to through-hole, such central axis 20 is along logical
The air pressure that hole insertion generates can be discharged by side opening 311 immediately, prevented air pressure height in seal chamber and made 4 dilatancy of counterdie
Displacement etc., in addition, side opening 311 is connected to through-hole, it, can be with one-step pore-creating, simple process when processing aperture.
The counterdie 4 is silica gel.
Embodiment 2
The present embodiment the difference from embodiment 1 is that, direction of the size of the side opening 311 from centre bore 310 outward
It is progressively smaller until closing, the structure formed in this way can be vented well, and when occurring on medical fluid arrival side opening 311, in water
The identical situation of surface tension under, cutting-edge structure make medical fluid drop enter side opening 311 when effective spherical radius reduce, need
The additional pressure overcome will increase, so that medical fluid is difficult to enter side opening 311, play the role of Water-proof exhausting.
Embodiment 3
The present embodiment the difference from example 2 is that, the lower end of the upper float 2 is set as the arcuate structure of evagination, institute
Setting sealing ring 5 between the inside of upper float 2 and the column 31 is stated, the diameter of the sealing ring 5 is greater than the upper float 2
The distance between on the outside of bottom to the column 31, such sealing ring 5 can be fallen on it down between upper float 2 and lower floating body 3
Gap blocks.
It is provided with thin groove 10 on the side wall of the column 31, is finished fastly in medical fluid, the medical fluid in dropping funnel is gradually reduced, when
When medical fluid outside floating body is lower than the liquid level in the floating body cavity, the medical fluid in floating body cavity can slowly be flowed along thin groove 10
Under, the speed of floating body cavity Chinese medicine liquid outflow can be regulated and controled by the size and number of thin groove 10.
It sets upper float 2 to the arc-shaped structure of lower end convex, sealing ring 5 is placed in arc-shaped structure, works as drop
When having medical fluid in bucket, floating body can float under the action of buoyancy, and when floating at baffle ring 7, retaining ring 8 will receive the limit of baffle ring 7
Position and cannot continue to rise, at this point, medical fluid can enter in floating body cavity and lift sealing ring 5, sealing ring 5 and the upper float
There are gap between 31 outside of column of 2 inside and lower floating body 3, medical fluid can be continued into, until reach with outside floating body
Liquid level is identical, and when medical fluid gradually decreases, the medical fluid face outside floating body is gradually reduced, under floating body is with the decline of liquid level
Drop, when buoyancy suffered by liquid level drops to the sealing ring 5 is less than its gravity and top medical fluid gravity, the sealing ring 5 can be fast
Speed decline, when sealing ring 5 drops to the outer side contacts of the column 31 with the inside of the upper float 2 and lower floating body 3, sealing ring
5 lock the medical fluid in floating body cavity, and since the presence of medical fluid increases the gravity of entire floating body, the floating body declines faster,
Counterdie 4 can be allowed to reach liquid outlet 12 and closed before medical fluid is flow to end, the stria being arranged on the column 31 of the lower floating body 3
As the flow pass of the medical fluid in floating body cavity, medical fluid can slowly flow down along stria, even if sealing infull feelings in counterdie 4
The entrance that medical fluid alleviates air can be further flowed out under condition.
And when subsequent needs continue infusion, new liquid is entered in shell 1, reaches at sealing ring 5 in liquid level, due to close
The gravity of seal ring 5 is greater than the buoyancy of medical fluid, and sealing ring 5 is still within the state of opposing seal, and liquid not can enter or can only
It is a small amount of to enter, at this point, the buoyancy that floating body is subject to is big relative to open cavity body structure in 2 cavity of upper float based on air, benefit
It is detached from counterdie 4 from liquid outlet 12.
The column 31, which is located at, is arranged baffle 6 with the top of the inner distance maximum of the upper float 2, in this way will sealing
The attainable maximum height under medical fluid buoyancy of ring 5 is limited in the size maximum of floating body chamber, is conducive to medical fluid and enters.
Convex ribs 9 are set on the lateral wall of the annular base 32, and the convex ribs 9 are 6 and are uniformly distributed in the annular
The inner wall gap in the outside of pedestal 32, the convex ribs 9 and the shell 1 is small, so that floating body movable can be able to maintain again edge always
The up and down motion of shell 1 will not deviate, and guarantee that counterdie 4 is preferably sealed only liquid.
Baffle ring 7 is arranged in the inside of the shell 1, and the bottom of the upper float 2 is arranged retaining ring 8, can prevent floating body in this way
It floats up to inlet 11 and stops dropping liquid.
Above-described specific embodiment has carried out further the purpose of the present invention, technical scheme and beneficial effects
It is described in detail, it should be understood that being not intended to limit the present invention the foregoing is merely a specific embodiment of the invention
Protection scope, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should all include
Within protection scope of the present invention.
Claims (9)
1. a kind of dual only liquid is from exhaust, safety dropping funnel, including shell (1) and floating body, inlet is arranged in shell (1) upper end
(11), liquid outlet (12) are arranged in the bottom of the shell (1), and the floating body is located in the shell (1), and the floating body includes upper
Counterdie (4) are arranged in the bottom of floating body (2) and the lower floating body (3) being detachably connected with the upper float (2), the lower floating body (3),
It is characterized in that, the lower floating body (3) includes plug division, the plug division includes plugboard (30) and is vertically set on described slotting
Column (31) in the middle part of fishplate bar (30), for the column (31) axially through setting through-hole, the through-hole includes centre bore (310)
With side opening (311), the upper float (2) includes central axis (20), and the central axis (20) is plugged in the centre bore (310)
In.
2. the dual liquid that stops of one kind according to claim 1 is from exhaust, safety dropping funnel, which is characterized in that the lower floating body (3)
It further include annular base (32), flange (320) are arranged in the bottom of the annular base (32), and the counterdie (4) is placed on described
On flange (320), the plugboard (30) is caught in the annular base (32) and fastens the counterdie (4).
3. the dual liquid that stops of one kind according to claim 1 or 2 is from exhaust, safety dropping funnel, which is characterized in that the side opening
(311) it is penetrated through with the two sides of the centre bore (310).
4. the dual liquid that stops of one kind according to claim 1 or 2 is from exhaust, safety dropping funnel, which is characterized in that the side opening
(311) size is progressively smaller until closing from the direction of centre bore (310) outward.
5. the dual liquid that stops of one kind according to claim 1 or 2 is from exhaust, safety dropping funnel, which is characterized in that the upper float
(2) lower end is set as the arcuate structure of evagination, and sealing ring is arranged between the inside and the column (31) of the upper float (2)
(5), the diameter of the sealing ring (5) is greater than the distance between on the outside of the bottom to the column (31) of the upper float (2).
6. the dual liquid that stops of one kind according to claim 5 is from exhaust, safety dropping funnel, which is characterized in that the column (31)
Thin groove (10) are provided on side wall.
7. the dual liquid that stops of one kind according to claim 5 is from exhaust, safety dropping funnel, which is characterized in that column (31) position
In the top of the inner distance maximum with the upper float (2), baffle (6) are set.
8. the dual liquid that stops of one kind according to claim 2 is from exhaust, safety dropping funnel, which is characterized in that the annular base
(32) convex ribs (9) are set on lateral wall, the convex ribs (9) are at least 3 and are spaced apart.
9. according to claim 1, the dual liquid that stops of the described in any item one kind of 2 or 6-8 is from exhaust, safety dropping funnel, which is characterized in that
Baffle ring (7) are arranged in the inside of the shell (1), and retaining ring (8) are arranged in the bottom of the upper float (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811634489.2A CN109481795B (en) | 2018-12-29 | 2018-12-29 | Double liquid-stopping self-exhausting safety dropping funnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811634489.2A CN109481795B (en) | 2018-12-29 | 2018-12-29 | Double liquid-stopping self-exhausting safety dropping funnel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109481795A true CN109481795A (en) | 2019-03-19 |
| CN109481795B CN109481795B (en) | 2023-12-19 |
Family
ID=65713314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811634489.2A Active CN109481795B (en) | 2018-12-29 | 2018-12-29 | Double liquid-stopping self-exhausting safety dropping funnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109481795B (en) |
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|---|---|---|---|---|
| JP3163771U (en) * | 2010-08-20 | 2010-10-28 | 賢宗 汪 | Infusion device |
| US20110218501A1 (en) * | 2010-03-04 | 2011-09-08 | Hsien-Tsung Wang | Automatic intravenous fluid flow control device |
| 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 |
| CN102813984A (en) * | 2012-08-09 | 2012-12-12 | 四川普瑞斯生物科技有限公司 | Disposable self-exhaust two-way self-closed liquid-stop blood return-prevention infusion apparatus |
| CN102813983A (en) * | 2012-08-09 | 2012-12-12 | 四川普瑞斯生物科技有限公司 | Disposable self-exhausted bidirectional automatic-closing-type liquid-stop anti-blood-return transfusion device |
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