CN106809793A - A kind of liquid withdrawal system - Google Patents
A kind of liquid withdrawal system Download PDFInfo
- Publication number
- CN106809793A CN106809793A CN201710238370.2A CN201710238370A CN106809793A CN 106809793 A CN106809793 A CN 106809793A CN 201710238370 A CN201710238370 A CN 201710238370A CN 106809793 A CN106809793 A CN 106809793A
- Authority
- CN
- China
- Prior art keywords
- liquid
- extract part
- holding pipe
- pipe
- pull bar
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
- B67D7/02—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes for transferring liquids other than fuel or lubricants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
- B67D7/06—Details or accessories
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
This application provides a kind of liquid withdrawal system, including liquid-holding pipe with receive liquid component, liquid-holding pipe be internally formed one through liquid-holding pipe two ends Sheng sap cavity；The side of liquid-holding pipe is provided with drain pipe；Receiving liquid component includes pull bar, and away from the fixed first extract part in one end of drain pipe on pull bar, the external diameter of the first extract part matches with the internal diameter for containing sap cavity, and the first extract part is provided with fluid hole；The second extract part is also flexibly connected on pull bar, size and the size of fluid hole of the second extract part match.A kind of liquid withdrawal system simple structure that the embodiment of the present application is provided, operation is easy, by motion of control the first extract part relative to the second extract part repeatedly, you can realize multiple, the continuous recovery to liquid.Meanwhile, one end of device connection experiment container, other end connection storage container, therefore, during withdrawal liquid, liquid withdrawal system is moved without artificial, it is to avoid liquid is splashed or splash the injury that may be caused to operator.
Description
Technical field
The application is related to recovery technology field, more particularly to a kind of liquid withdrawal system.
Background technology
In experimentation, can often there are some liquid that be carried out for assistant experiment, such as the liquid nitrogen that cools down or
For the methyl-silicone oil of oil bath heating.These liquid remain that its original chemical property is constant in experiment process, and keep
The degree of purity of its chemical composition, therefore, after once experiment has been carried out, these liquid can be reclaimed, so as to next real
Recycled in testing.
In traditional liquids recovery method, use a Sheng ware device for similar soy sauce grape by liquid from experiment institute more
Pulled out in container (experiment container), be then poured into again in another container (storage container) for holding the liquid.
The more simple and crude Sheng ware device of this structure can not be sealed liquid when liquid is filled, therefore, in liquid from experiment
Container is put into during container, and the splashing of liquid often occurs.If the liquid has higher or lower temperature, to behaviour
Author causes great security threat.In order to avoid the splashing of liquid, a small amount of liquid is fished in operator's selection, but, this will
Causing the process of withdrawal liquid becomes complicated, and withdrawal liquid action is discontinuous, and removal process takes a significant amount of time.
The content of the invention
This application provides a kind of liquid withdrawal system, the process for fishing for liquid to solve existing Sheng ware device does not connect
It is continuous, and there is a problem of that liquid splash is dangerous.
This application provides a kind of liquid withdrawal system, including liquid-holding pipe and the receipts liquid component being placed in the liquid-holding pipe,
The inner hollow of the liquid-holding pipe, formation one run through the Sheng sap cavity at the liquid-holding pipe two ends；The side of the liquid-holding pipe is provided with out
Liquid pipe, the drain pipe is connected with sap cavity is contained；
The receipts liquid component includes pull bar, away from the fixed first extract part in one end of the drain pipe, institute on the pull bar
The external diameter and the internal diameter of the Sheng sap cavity for stating the first extract part match, and the first extract part is provided with allows what liquid was passed in and out
Fluid hole；
The second extract part is also flexibly connected on the pull bar, and compared to the first extract part, the second extract part
Closer to the drain pipe, size and the size of the fluid hole of the second extract part match.
Preferably, the liquid-holding pipe is provided with fluid suction head away from the port of the drain pipe.
Preferably, the fluid suction head is flexibly connected with the liquid-holding pipe, and the fluid suction head is with the axis of the liquid-holding pipe
Line is rotated for rotary shaft.
Preferably, the pull bar is not provided with one end of the first extract part and is provided with handle.
Preferably, at a port of the liquid-holding pipe or two ports are provided with the first locating part, and described first is spacing
Part is used to limit the first extract part disengaging liquid-holding pipe.
Preferably, the second locating part, described second are provided with the pull bar between the handle and the second extract part
Locating part is used to limit the second extract part on the pull bar towards the motion in the handle direction.
Preferably, the tube wall of the liquid-holding pipe is double-decker.
Preferably, the drain pipe is arcuation pipeline.
Preferably, described device is made of stainless steel material.
A kind of liquid withdrawal system simple structure provided from above technical scheme, the embodiment of the present application, operation is just
Easily, by motion of control the first extract part relative to the second extract part repeatedly, you can realize returning the multiple, continuous of liquid
Receive.Meanwhile, one end connection experiment container of the device, other end connection storage container, therefore, during withdrawal liquid,
Without artificially moving liquid withdrawal system, it is to avoid liquid is splashed or splash the injury that may be caused to operator.
Brief description of the drawings
In order to illustrate more clearly of the technical scheme of the application, letter will be made to the accompanying drawing to be used needed for embodiment below
Singly introduce, it should be apparent that, for those of ordinary skills, without having to pay creative labor,
Other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of one embodiment of the application liquid withdrawal system；
Fig. 2 is the profile of the application liquid withdrawal system；
Fig. 3 is the structural representation of one embodiment of the application liquid-holding pipe；
Fig. 4 is the structural representation of one embodiment that the application receives liquid component；
Fig. 5 is the schematic diagram of the application example of the application liquid withdrawal system；
Label is expressed as in Fig. 1-4,1- liquid-holding pipes, and 11- contains sap cavity, and 111- contains sap cavity top, and 112- is contained under sap cavity
Portion, the locating parts of 12- first, 2- receipts liquid components, 21- pull bars, 22- the first extract parts, 221- fluid holes, 23- the second extract parts,
24- handles, the locating parts of 25- second, 3- drain pipes, 4- fluid suction heads, 5- experiment containers, 6- storage containers.
Specific embodiment
A kind of liquid withdrawal system that the embodiment of the present application is provided, the first extract part and the second extract part are controlled by pull bar
Relative motion, when the first extract part and the second extract part are separated, the liquid in experiment container enters position by fluid port
In Sheng sap cavity between the second extract part and drain pipe；When the first extract part and the second extract part are in close contact integral,
Drive the first extract part it is synchronous with the second extract part towards near drain pipe direction move so that be located at the second extract part with
At liquid motion to the drain pipe contained in sap cavity between drain pipe, storage container is flowed into eventually through drain pipe.In a not good liquor
After the completion of body recovery action, the first extract part of control makes the first extract part and second towards the direction motion away from the second extract part
Extract part is separated, and the liquid that is not recovered in experiment container enters Sheng sap cavity, step before just repeating afterwards, you can will contain again
In liquid storage to storage container in sap cavity.
Fig. 1 is the structural representation of one embodiment of the application liquid withdrawal system, as shown in figure 1, the liquid of the application
Body retracting device includes liquid-holding pipe 1 and receives liquid component 2.Liquid component 2 is received to be placed in liquid-holding pipe 1, and can be in liquid-holding pipe 1 along Sheng liquid
The axis direction of pipe 1 moves reciprocatingly.
Fig. 2 is the profile of the application liquid withdrawal system, with reference to shown in Fig. 1 and Fig. 2, the inner hollow of liquid-holding pipe 1, shape
Into a Sheng sap cavity 11 for running through the two ends of liquid-holding pipe 1.The side of liquid-holding pipe 1 is provided with drain pipe 3, and drain pipe 3 is connected with sap cavity 11 is contained
It is logical.For the ease of the description to liquid withdrawal system, liquid-holding pipe 1 is provided with the side of drain pipe 3 and is defined as liquid-holding pipe upper end, then
The side of drain pipe 3 is not provided with liquid-holding pipe 1 for liquid-holding pipe lower end.
Fig. 3 is the structural representation of one embodiment of the application liquid-holding pipe, with reference to shown in Fig. 1 and 3, for the ease of reclaiming
Liquid in the narrow and small or curved space, the liquid withdrawal system of the application also includes fluid suction head 4, and fluid suction head 4 is arranged on liquid-holding pipe
Away from the port (being defined by the direction shown in Fig. 2, liquid-holding pipe refers to liquid-holding pipe lower end away from the port of drain pipe) of drain pipe.Inhale
The diameter of the head for imbibition of liquid first 4 is smaller, therefore, can easily stretch into narrow and small or bending space.In the present embodiment,
Fluid suction head 4 is " L " type pipeline, in order that fluid suction head 4 keeps optimal position relationship with the moment of drain pipe 3, on the one hand, fluid suction head
4 can be directed at experiment container 5, and on the other hand, drain pipe 3 can be directed at storage container 6, and fluid suction head 4 is flexibly connected with liquid-holding pipe 1.This
In implementation, fluid suction head 4 and the activity clamping of liquid-holding pipe 1, fluid suction head 4 carry out 360 ° of rotations by rotary shaft of the axis of liquid-holding pipe 1.
Fig. 4 is the structural representation of one embodiment that the application receives liquid component, with reference to shown in Fig. 2 and Fig. 4, receives liquid component
2 include pull bar 21, and the one end on pull bar away from drain pipe (is defined, away from one end of drain pipe on pull bar by the direction shown in Fig. 3
It is the lower end of pull bar) the first extract part 22 is provided with, the first extract part 22 is fixedly connected with pull bar 21, when pull bar 21 is pulled, draws
Bar 21 will drive the associated movement of the first extract part 22.The external diameter of the first extract part 22 should match with the internal diameter for containing sap cavity 11, the
One extract part 22 is provided with fluid hole 221, and liquid can flow in or out Sheng sap cavity 11 by fluid hole 221.In this example, first
The external diameter of extract part 22 should match with the internal diameter for containing sap cavity 11, specifically refer to, external diameter and the Sheng sap cavity 11 of the first extract part 22
Internal diameter it is consistent.
The second extract part 23 is also connected with pull bar 21, the size of the second extract part 23 should be with the size phase of fluid hole 221
Match somebody with somebody.In the application, size and the size of fluid hole 221 of the second extract part 23 match, and specifically refer to, the second extract part 23
Size should be not less than the size of fluid hole 221, and less than the external diameter of the first extract part 22.Here, in order to table below state it is clear,
It is boundary with the second extract part 23, artificial 11 points of the sap cavity that will contain is upper and lower two parts, is to contain near the part of drain pipe 3
Sap cavity top 111, then the part away from drain pipe 3 is Sheng sap cavity bottom 112.
Second extract part 23 is flexibly connected with pull bar 21, and compared to the first extract part 22, the second extract part 23 closer to
Drain pipe 3, the second extract part 23 can be moved on pull bar 21 along the axis direction of pull bar 21.
In the application, by the first extract part 22 and the routing motion of the second extract part 23, can complete to the absorption of liquid with
The action such as extraction.When pull bar 21 is moved towards the direction of liquid-holding pipe lower end, the first extract part 22 is synchronized with the movement with pull bar 21, and second
Extract part 23 is not synchronized with the movement with pull bar 21, and the first extract part 22 is separated with the second extract part 23.Now, into Sheng sap cavity bottom
112 liquid will pass sequentially through the cavity inner wall of the fluid hole 221, the second extract part 23 and Sheng sap cavity 11 on the first extract part 22
Between space, into containing in sap cavity bottom 112, complete to draw the action of liquid.When pull bar 21 towards the direction of liquid-holding pipe upper end
During motion, the first extract part 22 is synchronized with the movement with pull bar 21, and the first extract part 22 is gradually reduced with the spacing of the second extract part 23,
Before the first extract part 22 is contacted with the second extract part 23, the second extract part 23 is not moved with pull bar 21, until the first extract part
22 are in contact with the second extract part 23, and the first extract part 22 will drive the common side towards near liquid-holding pipe upper end of the second extract part 23
To motion.Now, the first extract part 22 and the second extract part 23 jointly will be carried to drain pipe the liquid contained in sap cavity top 111
At 3, the action of extracting liq is completed.
In the present embodiment, the first extract part includes annulus and baffle plate, and annulus is fixedly connected by a baffle plate with pull bar.Annulus
External diameter with contain sap cavity internal diameter keep it is in the same size.Second extract part is a disk, and the radius of disk is equal or slightly larger than
The internal diameter of annulus.When the first extract part is separated with the second extract part, liquid flows into annulus and circle by the hole in the middle of annulus
In Sheng sap cavity between piece；Meanwhile, disk diameter is less than the internal diameter for containing sap cavity, therefore, liquid is further through between disk and liquid-holding pipe
Hole flow into disk and contain in sap cavity top 111.When the first extract part and inconsistent the second extract part, annulus is suitable with disk
In a piston, the liquid of disk upper seal is carried to drain pipe, complete the recovery of liquid.
Push-and-pull operation for the ease of operator to pull bar, pull bar is not provided with one end of the first extract part (with shown in Fig. 3
Direction is defined, and one end that the first extract part is not set on pull bar is the upper end of pull bar) it is provided with handle 24.Operator is manually handle
Hand, can easily operate the motion of pull bar.
Receive liquid component 2 to be moved back and forth in liquid-holding pipe 1, to end motion under liquid-holding pipe or to liquid-holding pipe upper end motion process
In, if operator overexerts, will occur and receive the phenomenon that liquid component 2 is deviate from from liquid-holding pipe lower end or liquid-holding pipe upper end.For
The generation of this phenomenon is avoided, at a port of liquid-holding pipe 1 or two ports are provided with the first locating part 12, first is spacing
Part 12 is used to limit the disengaging liquid-holding pipe 1 of the first extract part 22.In the present embodiment, it is respectively provided with liquid-holding pipe lower end in liquid-holding pipe upper end
First locating part 12.The way of realization of the first locating part has various, such as, positioned at the annulus of liquid-holding pipe port, it belongs to this
The protection domain of application.
Spacing between first extract part and the second extract part is difficult excessive, it is sufficient to allow liquid to be smoothly passed through, if
Apart from excessive, then an extract solution scale of construction is less, causes extraction efficiency low for it.In order to avoid the first extract part and the second extract
Spacing between part is excessive, in the application, the second locating part is provided with the pull bar 21 between the extract part 23 of handle 24 and second
25, the second locating part 25 is used to limit the second extract part 23 on pull bar 21 towards the motion on the direction of handle 24.It should be noted that
The way of realization of the second locating part has various, such as the projection on pull bar, its protection domain for belonging to the application.On
The particular location of the second locating part, is not specifically limited herein, and those skilled in the art can be set second and limit according to actual needs
Particular location of the position part on pull bar.
In order to avoid the liquid flowed out from drain pipe splashes, in the application, drain pipe uses the pipeline of arcuation.Phase
Compared with linear pipeline, the pipeline of arcuation can preferably control the direction of liquid outflow, meanwhile, the pipeline of arc can be to liquid
Speed play cushioning effect.Therefore, may insure that liquid is accurate using the pipeline of arcuation, slowly flow into storage container, from
And avoid the danger that may be caused to operator when liquid flows out.
In the application, the tube wall of liquid-holding pipe is adopted as double-decker, when the liquid for reclaiming have extreme temperature (supercooling or
Overheat) when, the tube wall of double-decker have it is good every cold or thermal insulation, so as to improve operator in actual application
Security.
In the application, liquid withdrawal system is made of stainless steel material, and stainless steel material has good corrosion-resistant, resistance to
The characteristic of low (height) temperature, therefore, the applicable ring in stronger or relatively low (height) temperature of corrosivity of liquid withdrawal system of the application
Under border.Meanwhile, the liquid withdrawal system being made of stainless steel material has good intensity and toughness, should not deform,
Can long-term use.
The technical program is better understood by for the ease of those skilled in the art, below in conjunction with the use of liquid withdrawal system
Process is further detailed.
Fig. 5 is the schematic diagram of the application example of the application liquid withdrawal system, as shown in figure 5, before withdrawal liquid, if liquid
Body retracting device is provided with fluid suction head, then according to actual needs, can adjust the position of fluid suction head, it is ensured that fluid suction head can contact experiment
Liquid in container 5, meanwhile, drain pipe 3 can be directed at storage container 6.If liquid withdrawal system is not provided with fluid suction head, can basis
It is actually needed, the position of sap cavity lower end is contained in adjustment, it is ensured that contain the liquid that sap cavity lower end can contact in experiment container 5, meanwhile, go out
Liquid pipe 3 can be directed at storage container 6.
In this example, liquid withdrawal system is not provided with fluid suction head, when starting withdrawal liquid, liquid-holding pipe lower end is put into experiment
In the liquid to be recycled of container 5, meanwhile, handle 24 is promoted, the first extract part 22 is pushed into liquid-holding pipe lower end, in liquid resistance
Under, there is Asynchrony between the second extract part 23 and the first extract part 22, cause the first extract part 22 and the second extract part
Gap is produced between 23.Now, liquid sequentially passes through fluid suction head, the extract part 23 of fluid hole 221 and second and contains in sap cavity 11
Hole between wall, flows ultimately into Sheng sap cavity top 111.Then, by lift-pull handle 24, the first extract part 22 towards Sheng liquid is driven
The direction motion of pipe upper end, when the first extract part 22 and inconsistent the second extract part 23, the second extract part 23 will be carried first
Liquid part 22 drives lower common towards end motion on liquid-holding pipe, and drives the liquid motion contained in sap cavity top 111 at drain pipe 3.
Storage container 6 is flowed into by drain pipe 3 by the liquid lifted to drain pipe 3, liquids recovery action once is completed.Wait to be carried
After being pulled to the liquid whole inflow storage container 6 at drain pipe 3, handle 24 is promoted again, the first extract part 22 is pushed into Sheng liquid
Pipe lower end, to carry out the liquids recovery action of next time.
A kind of liquid withdrawal system simple structure that the embodiment of the present application is provided, operate it is easy, by control repeatedly the
Motion of the one extract part relative to the second extract part, you can realize multiple, the continuous recovery to liquid.Meanwhile, the one of the device
End connection experiment container, other end connection storage container, therefore, during withdrawal liquid, returned without artificial mobile liquid
Receiving apparatus, it is to avoid liquid is splashed or splash the injury that may be caused to operator.
Embodiment of the present invention above is not intended to limit the scope of the present invention..
Claims (9)
1. a kind of liquid withdrawal system, it is characterised in that including liquid-holding pipe (1) and the receipts liquid group being placed in the liquid-holding pipe (1)
Part (2), the inner hollow of the liquid-holding pipe (1), formation one run through the Sheng sap cavity (11) at the liquid-holding pipe (1) two ends；The Sheng
The side of liquid pipe (1) is provided with drain pipe (3), and the drain pipe (3) is connected with sap cavity (11) is contained；
Receipts liquid component (2) include pull bar (21), away from one end fixed first of the drain pipe (3) on the pull bar (21)
Extract part (22), the external diameter of the first extract part (22) matches with the internal diameter of Sheng sap cavity (11), first extract
Part (22) is provided with the fluid hole (221) for allowing liquid to pass in and out；
The second extract part (23) is also flexibly connected on the pull bar (21), and compared to the first extract part (22), described
Two extract parts (23) are closer to the drain pipe (3), the size of the second extract part (23) and the chi of the fluid hole (221)
It is very little to match.
2. device as claimed in claim 1, it is characterised in that port of the liquid-holding pipe (1) away from the drain pipe (3)
It is provided with fluid suction head (4).
3. device as claimed in claim 2, it is characterised in that the fluid suction head (4) is flexibly connected with the liquid-holding pipe (1),
And the fluid suction head (4) rotates by rotary shaft of the axis of the liquid-holding pipe (1).
4. device as claimed in claim 1, it is characterised in that the pull bar (21) is not provided with the first extract part (22)
One end is provided with handle (24).
5. device as claimed in claim 1, it is characterised in that at a port of the liquid-holding pipe (1) or two ports
The first locating part (12) is provided with, first locating part (12) departs from the liquid-holding pipe for limiting the first extract part (22)
(1)。
6. device as claimed in claim 1, it is characterised in that the institute between the handle (24) and the second extract part (23)
State pull bar (21) and be provided with the second locating part (25), second locating part (25) exists for limiting the second extract part (23)
Towards the motion on the handle (24) direction on the pull bar (21).
7. device as claimed in claim 1, it is characterised in that the tube wall of the liquid-holding pipe (1) is double-decker.
8. device as claimed in claim 1, it is characterised in that the drain pipe (3) is arcuation pipeline.
9. device as claimed in claim 1, it is characterised in that described device is made of stainless steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710238370.2A CN106809793A (en) | 2017-04-13 | 2017-04-13 | A kind of liquid withdrawal system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710238370.2A CN106809793A (en) | 2017-04-13 | 2017-04-13 | A kind of liquid withdrawal system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106809793A true CN106809793A (en) | 2017-06-09 |
Family
ID=59116085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710238370.2A Pending CN106809793A (en) | 2017-04-13 | 2017-04-13 | A kind of liquid withdrawal system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106809793A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004042924A (en) * | 2002-07-09 | 2004-02-12 | Hitachi Plant Eng & Constr Co Ltd | Liquid removing device |
| CN2758517Y (en) * | 2004-11-11 | 2006-02-15 | 王丕明 | Liquid extracting piston |
| CN2900856Y (en) * | 2005-12-30 | 2007-05-16 | 陈春生 | Liquid pump improved structure |
| CN201077757Y (en) * | 2007-07-31 | 2008-06-25 | 王兴中 | Convenient dipper |
| CN204493097U (en) * | 2015-02-09 | 2015-07-22 | 天津普罗米化工有限公司 | A kind of swab for high viscosity liquid |
| CN204704079U (en) * | 2015-06-10 | 2015-10-14 | 长春黄金研究院 | A kind of extension type manual liquid is taken out |
| CN205084753U (en) * | 2015-11-04 | 2016-03-16 | 山东科技大学 | Novel pipette |
| CN206624633U (en) * | 2017-04-13 | 2017-11-10 | 云南电网有限责任公司电力科学研究院 | A kind of liquid withdrawal system |
-
2017
- 2017-04-13 CN CN201710238370.2A patent/CN106809793A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004042924A (en) * | 2002-07-09 | 2004-02-12 | Hitachi Plant Eng & Constr Co Ltd | Liquid removing device |
| CN2758517Y (en) * | 2004-11-11 | 2006-02-15 | 王丕明 | Liquid extracting piston |
| CN2900856Y (en) * | 2005-12-30 | 2007-05-16 | 陈春生 | Liquid pump improved structure |
| CN201077757Y (en) * | 2007-07-31 | 2008-06-25 | 王兴中 | Convenient dipper |
| CN204493097U (en) * | 2015-02-09 | 2015-07-22 | 天津普罗米化工有限公司 | A kind of swab for high viscosity liquid |
| CN204704079U (en) * | 2015-06-10 | 2015-10-14 | 长春黄金研究院 | A kind of extension type manual liquid is taken out |
| CN205084753U (en) * | 2015-11-04 | 2016-03-16 | 山东科技大学 | Novel pipette |
| CN206624633U (en) * | 2017-04-13 | 2017-11-10 | 云南电网有限责任公司电力科学研究院 | A kind of liquid withdrawal system |
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Application publication date: 20170609 |