CN106308886A - Liquid supplementing device and method - Google Patents
Liquid supplementing device and method Download PDFInfo
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- CN106308886A CN106308886A CN201610755813.0A CN201610755813A CN106308886A CN 106308886 A CN106308886 A CN 106308886A CN 201610755813 A CN201610755813 A CN 201610755813A CN 106308886 A CN106308886 A CN 106308886A
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- liquid
- displacement pump
- plunger displacement
- fluid infusion
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
- A61B17/3203—Fluid jet cutting instruments
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- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
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- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention provides a liquid supplementing device and method. The liquid supplementing device comprises a liquid supply source, a plunger piston, a liquid supplementing source, a liquid supply opening structure, a liquid supplementing opening structure and a monitoring unit, wherein the liquid supply source is connected with the plunger piston pump through the liquid supplementing opening structure; the plunger piston pump is connected with an external liquid storage box through the liquid supplementing opening structure; when the plunger piston does not work, the liquid supplementing source outputs liquid stored at the inside into the plunger piston pump; the plunger piston pump receives and stores the liquid output by the liquid supplementing source so as to output the inside air to the liquid storage box through the liquid supply opening structure; when the monitoring unit monitors the liquid outlet in the structure position of the liquid supply opening, the plunger piston pump is triggered to start to work; the liquid inside the liquid supplementing source is output into the plunger piston pump; air in the plunger piston pump can be thoroughly cleared; the inside negative pressure effect can be used for opening the liquid supplementing opening when no air exists in the plunger piston pump. Therefore by using the technical scheme, the plunger piston pump can open the liquid supplementing opening so as to obtain the liquid output by the liquid supply source.
Description
Technical field
The present invention relates to field of medical technology, particularly to a kind of liquid supply device and method.
Background technology
Water cutter, i.e. with water as cutter, is a kind of High Pressure Water Jet Cutting Technology, various materials can be carried out cold cut and cut.Logical
Cross and the liquid stored in reserving liquid tank is exported to water cutter, to ensure the smooth execution that high pressure waterjet operates.Additionally, it is defeated at reserving liquid tank
While going out liquid, plunger displacement pump liquid make-up in reserving liquid tank can be passed through.
At present, plunger displacement pump can obtain the liquid of liquid source of supply output by fluid infusion mouth, and will be obtained by supply opening
Liquid output in reserving liquid tank.
But, it being usually present a certain amount of air inside it when plunger displacement pump is initially use, the existence of this partial air makes
Plunger displacement pump can not open fluid infusion mouth, thus cannot obtain the liquid of liquid source of supply output.
Summary of the invention
The invention provides a kind of liquid supply device and method, it is possible to make plunger displacement pump open fluid infusion mouth, to obtain liquid supply
The liquid of source output.
In order to achieve the above object, the present invention is achieved through the following technical solutions:
On the one hand, the invention provides a kind of liquid supply device, including:
Liquid source of supply, plunger displacement pump, fluid infusion source, supply opening structure, fluid infusion mouth structure and monitoring means；
Described liquid source of supply is connected with described plunger displacement pump by described fluid infusion mouth structure；
Described plunger displacement pump is connected with outside reserving liquid tank by described supply opening structure；
Described fluid infusion source, when described plunger displacement pump does not works, exports the liquid of storage inside to described plunger displacement pump；
Described plunger displacement pump, receives and stores the liquid of described fluid infusion source output, by internal air by described supply opening
Structure output is to described reserving liquid tank；When receiving the trigger action of described monitoring means, start working；
Described monitoring means, is used for monitoring when having liquid to export at described supply opening structure, triggers described plunger displacement pump.
Further, described supply opening structure is positioned at the top of described plunger displacement pump.
Further, described monitoring means, being used for monitoring at described supply opening structure has liquid to export, and output liquid
Liquid level when being not less than predetermined object height, trigger described plunger displacement pump.
Further, this liquid supply device also includes: construction of switch；
Described fluid infusion source is connected with described plunger displacement pump by described construction of switch；
When described plunger displacement pump does not works, described construction of switch is in channel status；During the work of described plunger displacement pump, described switch
Structure is in closed circuit state.
Further, this liquid supply device also includes: infusion port structure；
Described liquid source of supply is connected with described fluid infusion source by described infusion port structure；
Described fluid infusion source is connected with described plunger displacement pump by described fluid infusion mouth structure；
Described plunger displacement pump does not works, and when described fluid infusion source is in extended state, described infusion port structure is opened and described
Fluid infusion mouth structure is closed, and is received the liquid of described liquid source of supply output by described infusion port structure；The non-work of described plunger displacement pump
Make, and when described fluid infusion source is in compressive state, described infusion port structure is closed and described fluid infusion mouth structure is opened, and is deposited inside
The liquid of storage is by described fluid infusion mouth structure output extremely described plunger displacement pump；
In described plunger displacement pump work process, described fluid infusion source is in channel status.
Further, described fluid infusion mouth structure includes: fluid infusion hole, bead and the first compression spring；
One end of described first compression spring is connected with described bead, and other end position is fixed；
When described plunger displacement pump is in extended state, utilize the vacuum force within described plunger displacement pump by described bead and institute
Stating fluid infusion hole to be separated, to open described fluid infusion mouth structure, and it is defeated to receive described liquid source of supply by described fluid infusion mouth structure
The liquid gone out；When described plunger displacement pump is in compressive state, utilize high-pressure forces within described plunger displacement pump by described bead with
Described fluid infusion hole matches, to close described fluid infusion mouth structure.
Further, described supply opening structure includes: for fluid apertures, include the spike-like structures of the head of a nail and rivet nut, and second
Compression spring；
Described rivet nut is through the described inside supplying fluid apertures and being positioned at described second compression spring；
One end of described second compression spring is connected with described rivet nut, and other end position is fixed；
When described plunger displacement pump is in extended state, the vacuum force within described plunger displacement pump is utilized to be covered by the described head of a nail
Residence is stated for fluid apertures, to close described supply opening structure；When described plunger displacement pump is in compressive state, utilize inside described plunger displacement pump
High-pressure forces the described head of a nail is separated, to open described supply opening structure, and by storage inside for fluid apertures with described
Liquid is by described supply opening structure output to described reserving liquid tank.
On the other hand, the invention provides a kind of liquid replenishing method, by liquid source of supply by fluid infusion mouth structure and plunger displacement pump
It is connected, and described plunger displacement pump is connected with outside reserving liquid tank by supply opening structure, also include:
When described plunger displacement pump does not works, the liquid of fluid infusion source storage inside is exported to described plunger displacement pump；
Described plunger displacement pump is utilized to receive and store the liquid of described fluid infusion source output, with by the air within described plunger displacement pump
By described supply opening structure output to described reserving liquid tank；
Monitor when having liquid to export at described supply opening structure, trigger described plunger displacement pump and start working.
Further, the method also includes: described supply opening structure is arranged at the top of described plunger displacement pump；
Further, described in monitor and have liquid to export at described supply opening structure, including: monitor described supply opening knot
There is liquid to export at structure, and the liquid level of output liquid is not less than predetermined object height.
Further, the method also includes: be connected with described plunger displacement pump by construction of switch in described fluid infusion source；Described post
When plug pump does not works, described construction of switch is set to channel status；During the work of described plunger displacement pump, described construction of switch is arranged
For closed circuit state.
Further, described liquid source of supply is connected with plunger displacement pump by fluid infusion mouth structure, including: described liquid is supplied
Ying Yuan is connected with described fluid infusion source by infusion port structure, and by described fluid infusion source by described fluid infusion mouth structure and described plunger
Pump is connected；
When described plunger displacement pump does not works, the liquid of fluid infusion source storage inside is exported to described plunger displacement pump, including: described
Plunger displacement pump does not works, and when described fluid infusion source is in extended state, described infusion port structure is opened and described fluid infusion mouth structure
Close, utilize described fluid infusion source to receive the liquid of described liquid source of supply output by described infusion port structure；Described plunger displacement pump
Do not work, and when described fluid infusion source is in compressive state, described infusion port structure is closed and described fluid infusion mouth structure is opened, will
The liquid of described fluid infusion source storage inside is by described fluid infusion mouth structure output extremely described plunger displacement pump；
The method also includes: in described plunger displacement pump work process, and described fluid infusion source is set to channel status.
The invention provides a kind of liquid supply device and method, this liquid supply device includes liquid source of supply, plunger displacement pump, fluid infusion
Source, supply opening structure, fluid infusion mouth structure and monitoring means.Wherein, liquid source of supply is connected with plunger displacement pump by fluid infusion mouth structure,
Plunger displacement pump is connected with outside reserving liquid tank by supply opening structure；When plunger displacement pump does not works, fluid infusion source is by the liquid of storage inside
Exporting to plunger displacement pump, plunger displacement pump receives and stores the liquid of fluid infusion source output, so that internal air is passed through supply opening structure
Output is to reserving liquid tank；Monitoring means monitors when having liquid to export at supply opening structure, and trigger plunger pump is started working.By fluid infusion
Liquid in source exports to plunger displacement pump, can empty the air in plunger displacement pump, in not having in plunger displacement pump during air to utilize
The vacuum force in portion is to open fluid infusion mouth.Therefore, the present invention can make plunger displacement pump open fluid infusion mouth, to obtain liquid source of supply
The liquid of output.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is the present invention
Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to according to
These accompanying drawings obtain other accompanying drawing.
Fig. 1 is the schematic diagram of a kind of liquid supply device that one embodiment of the invention provides；
Fig. 2 is the schematic diagram of the another kind of liquid supply device that one embodiment of the invention provides；
Fig. 3 is the structural representation of a kind of supply opening structure that one embodiment of the invention provides；
Fig. 4 is the schematic diagram of another liquid supply device that one embodiment of the invention provides；
Fig. 5 is the structural representation of a kind of fluid infusion mouth structure that one embodiment of the invention provides；
Fig. 6 is the flow chart of a kind of liquid replenishing method that one embodiment of the invention provides.
Detailed description of the invention
For making the purpose of the embodiment of the present invention, technical scheme and advantage clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
The a part of embodiment of the present invention rather than whole embodiments, based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained on the premise of not making creative work, broadly falls into the scope of protection of the invention.
As it is shown in figure 1, one embodiment of the invention provides a kind of liquid supply device, including:
Liquid source of supply 101, plunger displacement pump 102, fluid infusion source 103, supply opening structure 104, fluid infusion mouth structure 105 and monitoring are single
Unit 106；
Described liquid source of supply 101 is connected with described plunger displacement pump 102 by described fluid infusion mouth structure 105；
Described plunger displacement pump 102 is connected with outside reserving liquid tank by described supply opening structure 104；
Described fluid infusion source 103, when described plunger displacement pump 102 does not works, exports the liquid of storage inside to described post
In plug pump 102；
Described plunger displacement pump 102, receives and stores the liquid of described fluid infusion source 103 output, by internal air by described
Supply opening structure 104 output is to described reserving liquid tank；When receiving the trigger action of described monitoring means 106, start working；
Described monitoring means 106, is used for monitoring when having liquid to export at described supply opening structure 104, triggers described post
Plug pump 102.
Embodiments providing a kind of liquid supply device, this liquid supply device includes liquid source of supply, plunger displacement pump, fluid infusion
Source, supply opening structure, fluid infusion mouth structure and monitoring means.Wherein, liquid source of supply is connected with plunger displacement pump by fluid infusion mouth structure,
Plunger displacement pump is connected with outside reserving liquid tank by supply opening structure；When plunger displacement pump does not works, fluid infusion source is by the liquid of storage inside
Exporting to plunger displacement pump, plunger displacement pump receives and stores the liquid of fluid infusion source output, so that internal air is passed through supply opening structure
Output is to reserving liquid tank；Monitoring means monitors when having liquid to export at supply opening structure, and trigger plunger pump is started working.By fluid infusion
Liquid in source exports to plunger displacement pump, can empty the air in plunger displacement pump, in not having in plunger displacement pump during air to utilize
The vacuum force in portion is to open fluid infusion mouth.Therefore, the embodiment of the present invention can make plunger displacement pump open fluid infusion mouth, to obtain liquid
The liquid of source of supply output.
In detail, plunger displacement pump, when initially use, is usually present the air of certain volume inside it.Plunger displacement pump is in stretching
During state, by internal vacuum force to open fluid infusion mouth structure, such that it is able to obtain the liquid of storage in liquid source of supply
Body.But, when there is air in plunger displacement pump, the existence of this partial air can reduce above-mentioned vacuum force, to such an extent as to can not open
Open fluid infusion mouth structure, thus fluid infusion operation cannot be performed.Accordingly, it would be desirable to air present in plunger displacement pump is emptied.
In embodiments of the present invention, it is possible to use liquid is injected with evacuation of air in plunger displacement pump in fluid infusion source.Due to liquid
Density is much larger than atmospheric density, so that with persistently the increasing of liquid in plunger displacement pump, can gradually be emptied by plunger displacement pump inner air.
In detail, the air in plunger displacement pump can be expelled in the reserving liquid tank of external connection by supply opening structure, and along with reserving liquid tank
Persistently increasing of internal liquid, the internal original air of reserving liquid tank and the air being derived from plunger displacement pump all can be by reserving liquid tanks
The air bleeding valve in portion empties.
After the air in plunger displacement pump is drained, plunger displacement pump can normally work, to be supplied from liquid by fluid infusion mouth structure
Ying Yuanzhong obtains liquid.When plunger displacement pump normally works, can be without the participation in fluid infusion source.Based on this situation, the present invention implements
In example, the implementation utilizing fluid infusion source to inject liquid in plunger displacement pump at least can include following two kinds:
Mode 1: fluid infusion mouth structure is not passed through to plunger displacement pump output liquid in fluid infusion source；
Mode 2: fluid infusion mouth structure is passed through to plunger displacement pump output liquid in fluid infusion source.
In detail, for aforesaid way 1:
In an embodiment of the invention, refer to Fig. 2, this liquid supply device can also include: construction of switch 201；
Described fluid infusion source 103 is connected with described plunger displacement pump 102 by described construction of switch 201；
When described plunger displacement pump 102 does not works, described construction of switch 201 is in channel status；Described plunger displacement pump 102 works
Time, described construction of switch 201 is in closed circuit state.
In detail, after the air in plunger displacement pump is emptied, can be by fluid infusion mouth structure from liquid source of supply
Obtaining liquid, this implementation is without the participation in fluid infusion source, therefore fluid infusion source can be with fluid infusion mouth structure without annexation.Cause
This, fluid infusion mouth structure is not passed through to plunger displacement pump output liquid in fluid infusion source.
In order to the liquid in fluid infusion source is exported to plunger displacement pump, to get rid of the air in plunger displacement pump, can will mend
Liquid source is connected with plunger displacement pump by a construction of switch.When plunger displacement pump does not works, need the liquid in fluid infusion source is injected into post
In plug pump, therefore this construction of switch can be opened to be in channel status；During plunger displacement pump work, it is not necessary to fluid infusion source, therefore can be by
This construction of switch is closed to be in closed circuit state.
In a kind of possible implementation, when this construction of switch is closed, the interface quilt between this construction of switch and plunger displacement pump
Shut, therefore fluid infusion source can be disassembled.
In an embodiment of the invention, this construction of switch can be opened by staff, and by liquid pressure in fluid infusion source
Enter in plunger displacement pump, and this construction of switch can be closed by staff, and disassemble fluid infusion source.
Preferably, in an embodiment of the invention, in fluid infusion source, the volume of the liquid of storage can be not less than plunger displacement pump
In volume of air, in order to disposably the air in plunger displacement pump is emptied.
In detail, when supply opening structure is positioned at the upper end of plunger displacement pump, by by infusion fluid in plunger displacement pump, entering of liquid
Enter and the air within plunger displacement pump can be emptied by supply opening structure.Preferably, supply opening structure can be arranged at
The top of plunger displacement pump.
Therefore, in an embodiment of the invention, described supply opening structure 104 is positioned at the top of described plunger displacement pump 102.In detail
Carefully, when having liquid to export at supply opening structure, illustrate that the air in plunger displacement pump is emptied completely.
After being emptied by the air in plunger displacement pump, fluid infusion source can quit work, and plunger displacement pump is started working.Plunger displacement pump
In the course of the work, the motor being connected with plunger displacement pump can drive the cam rotation of plunger displacement pump, and along with the rotation of cam, plunger
Pump can circulate and be in extended state and compressive state.
When plunger displacement pump is in extended state, the sealing cavity volume within plunger displacement pump is gradually increased, the suction function of generation
Power makes fluid infusion mouth structure open and supply opening structure is closed, and is obtained in liquid source of supply by the fluid infusion mouth structure of unlatching
The liquid of storage.Correspondingly, when plunger displacement pump is in compressive state, the sealing cavity volume within plunger displacement pump is gradually reduced, and produces
High-pressure forces make fluid infusion mouth structure close and supply opening structure open, and by open supply opening structure, will be from liquid
The liquid obtained in body source of supply exports to reserving liquid tank.
In detail, from the above mentioned, by being emptied by air original in plunger displacement pump, plunger displacement pump can be made to pass through self
Vacuum force open fluid infusion mouth structure.But, plunger displacement pump is connected with reserving liquid tank by supply opening structure, and reserving liquid tank makes
With the initial stage, inside equally exists large quantity of air.Based on this phenomenon, during supply opening structure is by being opened into closedown, can
The air in reserving liquid tank can be there is and enter the situation of plunger displacement pump.When again there is air in plunger displacement pump, it may not be possible to open benefit
Liquid mouth structure.In order to enable plunger displacement pump normally to open fluid infusion mouth structure, in emptying plunger displacement pump after original air, equally
Need to avoid the air in reserving liquid tank to enter in plunger displacement pump.
Therefore, in order to avoid the air in reserving liquid tank enters in plunger displacement pump, in an embodiment of the invention, refer to figure
3, described monitoring means 106, being used for monitoring at described supply opening structure 104 has liquid to export, and the liquid level of output liquid is high
When degree is not less than predetermined object height, trigger described plunger displacement pump 102.
In figure 3, have liquid to export at supply opening structure, i.e. liquid through supply opening structure by plunger displacement pump output to storage
During the pipeline that liquid case is connected, illustrate that the air in plunger displacement pump empties.Meanwhile, for avoiding the air in reserving liquid tank to tie through supply opening
Structure enters in plunger displacement pump, and the liquid that may be present over certain volume of supply opening structure has reached the effect of fluid-tight.As at this
Invent in an embodiment, when liquid is entered the pipeline being connected with reserving liquid tank through supply opening structure by plunger displacement pump, and in pipeline
Liquid levels height is not less than L1Time, can be with trigger plunger pump, so that plunger displacement pump is started working.
In plunger displacement pump work process, the liquid of certain volume can be there is near supply opening structure all the time, to avoid liquid storage
Air in pipeline shown in case and Fig. 3 is in supply opening structure enters plunger displacement pump.And after plunger displacement pump work certain time, pipeline
In can only exist liquid, there is not air.Then, along with the continuous firing of plunger displacement pump is to export liquid to reserving liquid tank,
The air in reserving liquid tank can be emptied completely.
In an embodiment of the invention, refer to Fig. 3, it is provided that the structural representation of a kind of supply opening structure, described
Supply opening structure 104 includes: for fluid apertures 1041, include the spike-like structures 1042 of the head of a nail and rivet nut, and the second compression spring
1043；
Described rivet nut is through the described inside supplying fluid apertures 1041 and being positioned at described second compression spring 1043；
One end of described second compression spring 1043 is connected with described rivet nut, and other end position is fixed；
When described plunger displacement pump 102 is in extended state, utilize the vacuum force within described plunger displacement pump 102 by described nail
Cap covers described for fluid apertures 1041, to close described supply opening structure 104；When described plunger displacement pump 102 is in compressive state, profit
With the high-pressure forces within described plunger displacement pump 102, the described head of a nail is separated, to open described confession for fluid apertures 1041 with described
Liquid mouth structure 104, and the liquid of storage inside is exported to described reserving liquid tank by described supply opening structure 104.
In figure 3, dotted line position correspondence there are for fluid apertures, and is can be circular for fluid apertures, and the diameter of this circle
Can be L2.Under current state, do not covered by the head of a nail of spike-like structures for fluid apertures.
In detail, as it is shown on figure 3, the upper end position of the second compression spring is fixed, lower end is connected with the rivet nut of spike-like structures.
When plunger displacement pump is in extended state, the sealing cavity within plunger displacement pump is in negative pressure state, under corresponding suction function, the
Being diminished by compression degree of two compression springs, spring upper end is fixed but lower spring end moves down relatively, therefore the spike being connected with spring
Structure moves down relatively, makes the head of a nail cover confession fluid apertures, gapless between the head of a nail and confession fluid apertures.
Then, when plunger displacement pump is in compressive state, the sealing cavity within plunger displacement pump is in high pressure conditions, accordingly
Under high pressure effect, being increased by compression degree of the second compression spring, spring upper end is fixed but lower spring end is relatively upper moves, thus with bullet
The spike-like structures that spring connects is relatively upper to be moved, and makes the head of a nail can not cover for fluid apertures, the head of a nail and gap occur between fluid apertures, both
It is separated.
In detail, can be the outer wall above plunger displacement pump for the wall body existing for fluid apertures, the pipe being connected with supply opening structure
Road can be connected with reserving liquid tank, to be exported to reserving liquid tank by plunger displacement pump by liquid by this pipeline.
In detail, for aforesaid way 2:
In an embodiment of the invention, refer to Fig. 4, this liquid supply device can also include: infusion port structure 202；
Described liquid source of supply 101 is connected with described fluid infusion source 103 by described infusion port structure 202；
Described fluid infusion source 103 is connected with described plunger displacement pump 102 by described fluid infusion mouth structure 105；
Described plunger displacement pump 102 does not works, and when described fluid infusion source 103 is in extended state, described infusion port structure 202 is opened
Open and described fluid infusion mouth structure 105 is closed, received the liquid of described liquid source of supply 101 output by described infusion port structure 202
Body；Described plunger displacement pump 102 does not works, and when described fluid infusion source 103 is in compressive state, described infusion port structure 202 close and
Described fluid infusion mouth structure 105 is opened, and is exported to described plunger displacement pump by described fluid infusion mouth structure 105 by the liquid of storage inside
102；
In described plunger displacement pump 102 work process, described fluid infusion source 103 is in channel status.
In detail, fluid infusion source can be as the intermediary between liquid source of supply and fluid infusion mouth structure.Fluid infusion source can be passed through
Infusion port structure obtains the liquid in liquid source of supply, and by the liquid that obtains by fluid infusion mouth structure output to plunger displacement pump with
Air in emptying plunger displacement pump.After air emptying, plunger displacement pump normally works, and fluid infusion source can be set to channel status, post
Plug pump can pass sequentially through fluid infusion mouth structure, fluid infusion source, infusion port structure to obtain the liquid in liquid source of supply.This situation
Under, owing to fluid infusion source is all connected with infusion port structure and fluid infusion mouth structure, it is that the liquid in liquid source of supply enters plunger displacement pump
Passage, therefore when plunger displacement pump normally works, fluid infusion source is not disassembled.
In an embodiment of the invention, fluid infusion source is equally a plunger displacement pump.Furthermore, it is possible to controlled by staff
Make this plunger displacement pump from liquid source of supply, obtain liquid, and by the liquid obtained press-in to the plunger displacement pump being connected with reserving liquid tank.
When the plunger displacement pump being connected with reserving liquid tank normally works, this plunger displacement pump of fluid infusion source can be stretched to stationary state, so that should
There is the sealing cavity of fixed volume in plunger displacement pump, this sealing cavity is in channel status, and its effect is similar to a liquid stream
Thread a pipe, thus the liquid in liquid source of supply can be circulated to fluid infusion mouth structure by this sealing cavity.
In an embodiment of the invention, refer to Fig. 5, it is provided that the structural representation of a kind of fluid infusion mouth structure, described
Fluid infusion mouth structure 105 includes: fluid infusion hole 1051, bead 1052 and the first compression spring 1053；
One end of described first compression spring 1053 is connected with described bead 1052, and other end position is fixed；
When described plunger displacement pump 102 is in extended state, utilize the vacuum force within described plunger displacement pump 102 by described pearl
Body 1052 is separated, to open described fluid infusion mouth structure 105, and by described fluid infusion mouth structure 105 with described fluid infusion hole 1051
Receive the liquid of described liquid source of supply 101 output；When described plunger displacement pump 102 is in compressive state, utilize described plunger displacement pump 102
Described bead 1052 is matched, to close described fluid infusion mouth structure 105 by internal high-pressure forces with described fluid infusion hole 1051.
In an embodiment of the invention, bead can be any one in bead, plastic bead, stainless shot, i.e.
The material of this bead can not too much be limited, and the shape of this bead is the most too much limited, as permissible in this bead
Spheroid shape.
In Figure 5, dotted line position correspondence there are fluid infusion hole, and the diameter in fluid infusion hole can be L3.First compression spring
Upper end be connected with bead, lower end position is fixed.Under current state, fluid infusion hole and bead match, and fluid infusion mouth structure is in pass
Closed state.
When plunger displacement pump is in extended state, the sealing cavity within plunger displacement pump is in negative pressure state, in corresponding negative pressure
Under effect, the first compression spring is further compressed, and lower spring end is fixed but spring upper end moves down relatively, therefore bead and fluid infusion hole
Being separated, there is gap between the two, fluid infusion mouth structure is in opening.When fluid infusion mouth structure is opened, in liquid source of supply
Liquid can be exported to the sealing cavity within plunger displacement pump by gap, and it is temporary, to realize fluid infusion operation to carry out liquid.
Accordingly, when plunger displacement pump is in compressive state, the sealing cavity within plunger displacement pump is in high pressure conditions, accordingly
High pressure effect under, being diminished by compression degree of the first compression spring, lower spring end is fixed but spring upper end is relatively upper moves, therefore pearl
Body and fluid infusion hole match, gapless between the two, do not carry out fluid infusion operation.
In an embodiment of the invention, the infusion port structure being connected with fluid infusion source and liquid source of supply can be with Fig. 5 institute
The fluid infusion mouth structure shown is identical.
In detail, after plunger displacement pump is started working, when plunger displacement pump is in extended state, utilize the suction function within plunger displacement pump
Power, can make infusion port structure and fluid infusion mouth structure all open, and fluid infusion source can be in channel status as fluid passage, from
And the liquid in liquid source of supply can be obtained；When plunger displacement pump is in compressive state, utilize the high-pressure forces within plunger displacement pump,
Infusion port structure and fluid infusion mouth structure can be made to be turned off.
In an embodiment of the invention, this liquid supply device may be used for field of medical technology, wherein, in this liquid supply device
The liquid of circulation can be normal saline.
As shown in Figure 6, embodiments provide a kind of liquid replenishing method, may comprise steps of:
Step 301: liquid source of supply is connected with plunger displacement pump by fluid infusion mouth structure, and described plunger displacement pump is passed through feed flow
Mouth structure is connected with outside reserving liquid tank.
Step 302: when described plunger displacement pump does not works, exports the liquid of fluid infusion source storage inside to described plunger displacement pump.
Step 303: utilize described plunger displacement pump to receive and store the liquid of described fluid infusion source output, with by described plunger displacement pump
The air in portion is by described supply opening structure output to described reserving liquid tank.
Step 304: monitor when having liquid to export at described supply opening structure, trigger described plunger displacement pump and start working.
In one embodiment of the invention, in order to by fully erased for the air in plunger displacement pump, so, the method can
To farther include: described supply opening structure to be arranged at the top of described plunger displacement pump.
In detail, when supply opening structure is positioned at the upper end of plunger displacement pump, by by infusion fluid in plunger displacement pump, entering of liquid
Enter and the air within plunger displacement pump can be emptied by supply opening structure.And preferably, supply opening structure can be arranged
Top in plunger displacement pump.When having liquid to export at supply opening structure, illustrate that the air in plunger displacement pump is drained.
In one embodiment of the invention, after being completely removed for the air ensured in plunger displacement pump, reserving liquid tank
In air can not by feed flow pore structure to enter in plunger displacement pump, have at described supply opening structure so monitoring described in,
Liquid exports, including: monitor and have liquid to export at described supply opening structure, and the liquid level of output liquid is not less than in advance
The object height determined.
In detail, when plunger displacement pump normally works, if plunger displacement pump is transformed into extended state by compressive state, supply opening is tied
Structure is changed into closed mode by opening.In the state transition process of supply opening structure, owing to supply opening structure connects storage
Liquid case, and the reserving liquid tank initial stage use time inside comprise large quantity of air so that easily there is air near supply opening structure, and should
Partial air easily enters in plunger displacement pump.When plunger displacement pump exists air, the vacuum force of therein is utilized to open
Open fluid infusion mouth structure, thus the liquid in liquid source of supply cannot be obtained.For avoiding the occurrence of this phenomenon, supply opening can be made to tie
Retaining a part of liquid at structure, the existence of this partially liq can stop that air enters in plunger displacement pump.
In detail, plunger displacement pump, at the initial stage of use, is usually present a certain amount of air, therefore fluid infusion source can be utilized to post inside it
Plug pump injects liquid with evacuation of air.After being emptied by plunger displacement pump inner air, plunger displacement pump can normally work, to pass through fluid infusion
Mouth structure obtains liquid from liquid source of supply.Wherein, fluid infusion source is utilized to inject the implementation of liquid in plunger displacement pump at least
Following two kinds can be included:
Mode A: fluid infusion mouth structure is not passed through to plunger displacement pump output liquid in fluid infusion source；
Mode B: fluid infusion mouth structure is passed through to plunger displacement pump output liquid in fluid infusion source.
For aforesaid way A:
In one embodiment of the invention, the method may further include: described fluid infusion source is passed through construction of switch
It is connected with described plunger displacement pump；
When described plunger displacement pump does not works, described construction of switch is set to channel status；During the work of described plunger displacement pump, by institute
State construction of switch and be set to closed circuit state.
In detail, after the air in plunger displacement pump is emptied, can be by fluid infusion mouth structure from liquid source of supply
Obtaining liquid, this implementation is without the participation in fluid infusion source, therefore fluid infusion source can be with fluid infusion mouth structure without annexation.Cause
This, fluid infusion source can be connected with plunger displacement pump by a construction of switch.When plunger displacement pump does not works, need the liquid in fluid infusion source
It is injected in plunger displacement pump, therefore this construction of switch can be opened to be in channel status；During plunger displacement pump work, it is not necessary to fluid infusion source,
Therefore this construction of switch can be closed to be in closed circuit state.In one implementation, when this construction of switch is closed, this switch
Interface between structure and plunger displacement pump is shut, therefore can disassemble fluid infusion source.
In an embodiment of the invention, this construction of switch can be opened by staff, and by liquid pressure in fluid infusion source
Enter in plunger displacement pump, and this construction of switch can be closed by staff, and disassemble fluid infusion source.
Preferably, in fluid infusion source, the volume of the liquid of storage can be not less than the volume of air in plunger displacement pump, in order to one
Air in plunger displacement pump is emptied by secondary property.
For aforesaid way B:
In one embodiment of the invention, described liquid source of supply is connected with plunger displacement pump by fluid infusion mouth structure, bag
Include: described liquid source of supply is connected with described fluid infusion source by infusion port structure, and by described fluid infusion source by described fluid infusion
Mouth structure is connected with described plunger displacement pump；
When described plunger displacement pump does not works, the liquid of fluid infusion source storage inside is exported to described plunger displacement pump, including: described
Plunger displacement pump does not works, and when described fluid infusion source is in extended state, described infusion port structure is opened and described fluid infusion mouth structure
Close, utilize described fluid infusion source to receive the liquid of described liquid source of supply output by described infusion port structure；Described plunger displacement pump
Do not work, and when described fluid infusion source is in compressive state, described infusion port structure is closed and described fluid infusion mouth structure is opened, will
The liquid of described fluid infusion source storage inside is by described fluid infusion mouth structure output extremely described plunger displacement pump；
The method may further include: in described plunger displacement pump work process, and described fluid infusion source is set to channel status.
In detail, fluid infusion source can be as the intermediary between liquid source of supply and fluid infusion mouth structure, by infusion port structure
Obtain the liquid in liquid source of supply, and the liquid obtained is exported to plunger displacement pump to empty plunger displacement pump by fluid infusion mouth structure
In air.After air emptying, plunger displacement pump normally works, and fluid infusion source can be set to channel status, and plunger displacement pump can depend on
Secondary by fluid infusion mouth structure, fluid infusion source, infusion port structure to obtain the liquid in liquid source of supply.In the case of this, plunger displacement pump
When normally working, fluid infusion source is not disassembled.
In an embodiment of the invention, fluid infusion source is equally a plunger displacement pump.Furthermore, it is possible to controlled by staff
Make this plunger displacement pump from liquid source of supply, obtain liquid, and by the liquid obtained press-in to the plunger displacement pump being connected with reserving liquid tank.
When the plunger displacement pump being connected with reserving liquid tank normally works, this plunger displacement pump of fluid infusion source can be stretched to stationary state, so that should
There is the sealing cavity of fixed volume in plunger displacement pump, this sealing cavity is in channel status, and its effect is similar to a liquid stream
Thread a pipe, thus the liquid in liquid source of supply can be circulated to fluid infusion mouth structure by this sealing cavity.
In sum, each embodiment of the present invention at least has the advantages that
1, in the embodiment of the present invention, this liquid supply device includes liquid source of supply, plunger displacement pump, fluid infusion source, supply opening structure, benefit
Liquid mouth structure and monitoring means.Wherein, liquid source of supply is connected with plunger displacement pump by fluid infusion mouth structure, and plunger displacement pump passes through supply opening
Structure is connected with outside reserving liquid tank；When plunger displacement pump does not works, the liquid of storage inside is exported to plunger displacement pump by fluid infusion source, post
Plug pump receives and stores the liquid of fluid infusion source output, so that internal air is passed through supply opening structure output to reserving liquid tank；Monitoring
Unit monitors when having liquid to export at supply opening structure, and trigger plunger pump is started working.Liquid in fluid infusion source is exported extremely
In plunger displacement pump, the air in plunger displacement pump can be emptied, plunger displacement pump does not has during air to utilize the vacuum force of inside with
Open fluid infusion mouth.Therefore, the embodiment of the present invention can make plunger displacement pump open fluid infusion mouth, to obtain the liquid of liquid source of supply output
Body.
It should be noted that in this article, the relational terms of such as first and second etc is used merely to an entity
Or operation separates with another entity or operating space, and not necessarily require or imply existence between these entities or operation
The relation of any this reality or order.And, term " includes ", " comprising " or its any other variant are intended to non-
Comprising of exclusiveness, so that include that the process of a series of key element, method, article or equipment not only include those key elements,
But also include other key elements being not expressly set out, or also include being consolidated by this process, method, article or equipment
Some key elements.In the case of there is no more restriction, statement the key element " including " and limiting, do not arrange
Except there is also other same factor in including the process of described key element, method, article or equipment.
One of ordinary skill in the art will appreciate that: all or part of step realizing said method embodiment can be passed through
The hardware that programmed instruction is relevant completes, and aforesaid program can be stored in the storage medium of embodied on computer readable, this program
Upon execution, perform to include the step of said method embodiment；And aforesaid storage medium includes: ROM, RAM, magnetic disc or light
In the various medium that can store program code such as dish.
Last it should be understood that the foregoing is only presently preferred embodiments of the present invention, it is merely to illustrate the skill of the present invention
Art scheme, is not intended to limit protection scope of the present invention.All made within the spirit and principles in the present invention any amendment,
Equivalent, improvement etc., be all contained in protection scope of the present invention.
Claims (10)
1. a liquid supply device, it is characterised in that including:
Liquid source of supply, plunger displacement pump, fluid infusion source, supply opening structure, fluid infusion mouth structure and monitoring means；
Described liquid source of supply is connected with described plunger displacement pump by described fluid infusion mouth structure；
Described plunger displacement pump is connected with outside reserving liquid tank by described supply opening structure；
Described fluid infusion source, when described plunger displacement pump does not works, exports the liquid of storage inside to described plunger displacement pump；
Described plunger displacement pump, receives and stores the liquid of described fluid infusion source output, by internal air by described supply opening structure
Output is to described reserving liquid tank；When receiving the trigger action of described monitoring means, start working；
Described monitoring means, is used for monitoring when having liquid to export at described supply opening structure, triggers described plunger displacement pump.
Liquid supply device the most according to claim 1, it is characterised in that
Described supply opening structure is positioned at the top of described plunger displacement pump；
And/or,
Described monitoring means, being used for monitoring at described supply opening structure has liquid to export, and the liquid level of output liquid is not
During less than predetermined object height, trigger described plunger displacement pump.
Liquid supply device the most according to claim 1, it is characterised in that
Farther include: construction of switch；
Described fluid infusion source is connected with described plunger displacement pump by described construction of switch；
When described plunger displacement pump does not works, described construction of switch is in channel status；During the work of described plunger displacement pump, described construction of switch
It is in closed circuit state.
Liquid supply device the most according to claim 1, it is characterised in that
Farther include: infusion port structure；
Described liquid source of supply is connected with described fluid infusion source by described infusion port structure；
Described fluid infusion source is connected with described plunger displacement pump by described fluid infusion mouth structure；
Described plunger displacement pump does not works, and when described fluid infusion source is in extended state, described infusion port structure is opened and described fluid infusion
Mouth structure is closed, and is received the liquid of described liquid source of supply output by described infusion port structure；Described plunger displacement pump does not works, and
When described fluid infusion source is in compressive state, described infusion port structure is closed and described fluid infusion mouth structure is opened, by storage inside
Liquid is by described fluid infusion mouth structure output extremely described plunger displacement pump；
In described plunger displacement pump work process, described fluid infusion source is in channel status.
5. according to described liquid supply device arbitrary in Claims 1-4, it is characterised in that
Described fluid infusion mouth structure includes: fluid infusion hole, bead and the first compression spring；
One end of described first compression spring is connected with described bead, and other end position is fixed；
When described plunger displacement pump is in extended state, utilize the vacuum force within described plunger displacement pump by described bead and described benefit
Fluid apertures is separated, and to open described fluid infusion mouth structure, and receives the output of described liquid source of supply by described fluid infusion mouth structure
Liquid；When described plunger displacement pump is in compressive state, utilize the high-pressure forces within described plunger displacement pump by described bead with described
Fluid infusion hole matches, to close described fluid infusion mouth structure.
6. according to described liquid supply device arbitrary in Claims 1-4, it is characterised in that
Described supply opening structure includes: for fluid apertures, include the spike-like structures of the head of a nail and rivet nut, and the second compression spring；
Described rivet nut is through the described inside supplying fluid apertures and being positioned at described second compression spring；
One end of described second compression spring is connected with described rivet nut, and other end position is fixed；
When described plunger displacement pump is in extended state, utilize the vacuum force within described plunger displacement pump that the described head of a nail is covered residence
State for fluid apertures, to close described supply opening structure；When described plunger displacement pump is in compressive state, utilize the height within described plunger displacement pump
The described head of a nail is separated, to open described supply opening structure, and by the liquid of storage inside for fluid apertures by pressure active force with described
By described supply opening structure output to described reserving liquid tank.
7. a liquid replenishing method, it is characterised in that liquid source of supply is connected with plunger displacement pump by fluid infusion mouth structure, and by described
Plunger displacement pump is connected with outside reserving liquid tank by supply opening structure, also includes:
When described plunger displacement pump does not works, the liquid of fluid infusion source storage inside is exported to described plunger displacement pump；
Described plunger displacement pump is utilized to receive and store the liquid of described fluid infusion source output, to be passed through by the air within described plunger displacement pump
Described supply opening structure output is to described reserving liquid tank；
Monitor when having liquid to export at described supply opening structure, trigger described plunger displacement pump and start working.
Method the most according to claim 7, it is characterised in that
Farther include: described supply opening structure is arranged at the top of described plunger displacement pump；
And/or,
Described monitoring has liquid to export at described supply opening structure, including: monitor and have liquid defeated at described supply opening structure
Go out, and the liquid level of output liquid is not less than predetermined object height.
Method the most according to claim 7, it is characterised in that
Farther include: described fluid infusion source is connected with described plunger displacement pump by construction of switch；
When described plunger displacement pump does not works, described construction of switch is set to channel status；During the work of described plunger displacement pump, open described
Close structure and be set to closed circuit state.
10. according to described method arbitrary in claim 7 to 9, it is characterised in that
Described liquid source of supply is connected with plunger displacement pump by fluid infusion mouth structure, including: by described liquid source of supply by transfusion
Mouth structure is connected with described fluid infusion source, and is connected with described plunger displacement pump by described fluid infusion mouth structure in described fluid infusion source；
When described plunger displacement pump does not works, the liquid of fluid infusion source storage inside is exported to described plunger displacement pump, including: described plunger
Pump does not works, and when described fluid infusion source is in extended state, described infusion port structure is opened and described fluid infusion mouth structure is closed,
Described fluid infusion source is utilized to receive the liquid of described liquid source of supply output by described infusion port structure；The non-work of described plunger displacement pump
Make, and when described fluid infusion source is in compressive state, described infusion port structure is closed and described fluid infusion mouth structure is opened, by described
The liquid of fluid infusion source storage inside is by described fluid infusion mouth structure output extremely described plunger displacement pump；
Farther include: in described plunger displacement pump work process, described fluid infusion source is set to channel status.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610755813.0A CN106308886B (en) | 2016-08-30 | 2016-08-30 | A kind of liquid supply device and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610755813.0A CN106308886B (en) | 2016-08-30 | 2016-08-30 | A kind of liquid supply device and method |
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| CN106308886A true CN106308886A (en) | 2017-01-11 |
| CN106308886B CN106308886B (en) | 2019-04-12 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1980609A (en) * | 2004-06-30 | 2007-06-13 | 爱尔伯电子医疗设备公司 | Medical pump |
| US20090043480A1 (en) * | 2007-08-10 | 2009-02-12 | Seiko Epson Corporation | Fluid injection device |
| WO2010005896A1 (en) * | 2008-07-08 | 2010-01-14 | Parker-Hannifin Corporation | High pressure intensifier system |
-
2016
- 2016-08-30 CN CN201610755813.0A patent/CN106308886B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1980609A (en) * | 2004-06-30 | 2007-06-13 | 爱尔伯电子医疗设备公司 | Medical pump |
| US20090043480A1 (en) * | 2007-08-10 | 2009-02-12 | Seiko Epson Corporation | Fluid injection device |
| WO2010005896A1 (en) * | 2008-07-08 | 2010-01-14 | Parker-Hannifin Corporation | High pressure intensifier system |
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| Publication number | Publication date |
|---|---|
| CN106308886B (en) | 2019-04-12 |
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