CN207735020U - A kind of use for laboratory multrirange charger - Google Patents

A kind of use for laboratory multrirange charger Download PDF

Info

Publication number
CN207735020U
CN207735020U CN201721846835.4U CN201721846835U CN207735020U CN 207735020 U CN207735020 U CN 207735020U CN 201721846835 U CN201721846835 U CN 201721846835U CN 207735020 U CN207735020 U CN 207735020U
Authority
CN
China
Prior art keywords
measuring pipet
measuring
liquid
pipet
iii
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201721846835.4U
Other languages
Chinese (zh)
Inventor
张先楚
程天才
丁朋举
夏敏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nanyang Normal University
Original Assignee
Nanyang Normal University
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nanyang Normal University filed Critical Nanyang Normal University
Priority to CN201721846835.4U priority Critical patent/CN207735020U/en
Application granted granted Critical
Publication of CN207735020U publication Critical patent/CN207735020U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Investigating Or Analysing Biological Materials (AREA)

Abstract

A kind of use for laboratory multrirange charger, including one with liquid storage bottle made of graduated amount liquid bottle and an elastic material, its length direction of the tubulose bottleneck upper edge of amount liquid bottle is disposed with measuring pipet I, measuring pipet II and measuring pipet III, the bottom of measuring pipet I, measuring pipet II and measuring pipet III is pooled in a spherical cushion chamber, the bottom of spherical cushion chamber is provided with a catheter, which extend into the lower part of liquid storage bottle after the sealing-plug on liquid storage bottle bottleneck.The utility model stores liquid by the way that liquid storage bottle made of elastic material is arranged, and three measuring pipets opened and closed by control valve control are arranged in different location on the tubulose bottleneck of amount liquid bottle, and three measuring pipets are connect with liquid storage bottle by spherical cushion chamber and catheter, opening and closing by operating the control valve on three measuring pipets obtains different ranges come the amount of making liquid bottle, to enable a volumetric flask to obtain three kinds of different ranges, user's use is greatly facilitated.

Description

A kind of use for laboratory multrirange charger
Technical field
The utility model is related to the experimental instruments to use for laboratory, specifically a kind of use for laboratory multrirange Charger.
Background technology
In biomass energy laboratory, automatic liquid adding device is a kind of appearance for capableing of quick accurate measuring certain volume liquid Device, but traditional automatic liquid adding device can only measure the liquid of single volume, this needs to measure different volumes in practical operation Solution when need prepare different model charger, need to frequently replace charger in operation, be inconvenient.
To solve this problem, applicant has carried out coordinate indexing on patent website, finds following comparison patent document:
Application No. is 912280441 utility model patents to disclose a kind of Multi-head adjustable device for applying liquor, by pump or air bag Or leather bellow is connected to the fluid suction head of conduit, imbibition box and cassette bottom and row of openings, each fluid suction head is tapered, and internal diameter is consistent, Internal orifice is located in imbibition box, occupies same level, and lower mouth exposes cassette bottom, occupies same level.Liquid volume added can pass through adjustable column tune Section, the quantity of fluid suction head and arrangement, interval, different size, liquid absorption amount are made according to the quantity and arrangement of reacting hole in reaction vessel It is precisely consistent.
Application No. is 922334633 utility model patents to disclose one kind applied to each hospital laboratory and other experiments The adjustable quantitative liquid feeder of room, reagent bottle everybody not connected two parts by partition, it is each configure a subband upper piston pipe and under The syringe jacket of piston tube, syringe jacket, rubber are taken over, locating rod is each attached on bottle cap, and two syringe fuses are fixed On knob, and mobile simultaneously with the movement of knob, reagent bottleneck and bottle cap do external screw thread, and connect, when putting well Bottle cap, nut can be fixed up the two when twisting upwards, when in use, according to by the amount rotational positioning screw of reagent adding, adjust Section positioning is set to required position, and two kinds of reagents are poured into the right and left of reagent bottle respectively, are covered, when moving up and down knob When, two syringe fuses are mobile simultaneously, and due to the special construction of upper and lower piston tube, two kinds of reagents are respectively by quantitative inhalation syringe And projected from upper piston pipe, it is combined into one at the rubber place of taking over, goes out from same outlet jet flow, often lashed once to reach Knob can draw two kinds of different reagents simultaneously, and the purpose of measured tube is added to after automatic mixing.
Disclose a kind of Multi-functional quantitative liquid feeder application No. is 932146449 utility model patent, reagent bottle by every Everybody not connected two parts of piece, configure the syringe of a subband upper piston pipe and lower piston pipe above reagent bottleneck, on Piston tube is connected with outlet, and the conduit that lower piston pipe is respectively protruding into reagent bottle both sides with two is connected, and the lower end of syringe is inserted Enter bottle stopper and be allowed to fixed, bottle stopper is further fixed with reagent bottle by nut, and piston upper end can be fixed on knob, be pinched Hand is connected with locating rod, by the amount for adjusting positioning sleeve reagent adding to determine.
Application No. is 942378695 utility model patents to disclose a kind of two-ball rubber liquid supplier, by Liquid absorption ball, row Liquid ball, two metal ball-valves, check valve and air inlet/outlet composition, Liquid absorption ball are communicated by check valve with drainage ball, and check valve is only Gas is allowed to enter drainage ball by Liquid absorption ball, Liquid absorption ball and drainage ball are communicated by two metal ball-valves with air inlet/outlet respectively, When being not used, that is, in its natural state, two metal ball-valves are closed.
Application No. is 2004200737306 utility model patents to disclose a kind of rubber liquid adding device, by drainage ball, unidirectionally Valve, Liquid absorption ball, metal ball-valve, air inlet/outlet, gas-guide tube and metal ball-valve are constituted, and Liquid absorption ball leads to check valve and the row of drainage ball The gas-guide tube that liquid ball leads to metal ball-valve is hidden in charger, and air inlet/outlet, Liquid absorption ball and drainage ball are on the same longitudinal axis Arrangement, two metal ball-valves are symmetrically distributed in the both sides of the longitudinal axis, keep the surface structure of charger symmetrical.
Application No. is 2006200529069 utility model patents to disclose a kind of rubber liquid adding device, by exhaust outlet, unidirectionally Valve, liquid sucking bag, metal ball-valve, air inlet/outlet, gas-guide tube are constituted, and the gas-guide tube for drain is hidden in inside liquid sucking bag.
Application No. is 2010201500948 utility model patents to disclose a kind of charger, including hollow main body, if Inlet and liquid outlet in main body are set, the inner wall of main body is equipped with low temperature resistant thermal insulation layer, and liquid outlet is provided with regulating valve, Liquid outlet is arranged below the side of main body.Regulating valve can adjust the opening and closing of liquid outlet, the size of liquid outlet quantity.
Application No. is 2015201361670 utility model patents to disclose a kind of experiment chromatographic column charger, by adding Liquid bottle, glass stopper, rubber sleeve composition, after liquid feeding bottle installs glass stopper, put on the rubber sleeve of selection, are installed on chromatography outside bottleneck At the top of column upper end, so that charger and chromatographic column is sealed and be integrated.Closed liquid feeding is realized, is washed caused by avoiding organic matter volatilization De- agent proportioning is inaccurate.
Application No. is 2015209292645 utility model patents to disclose a kind of simple charger device, including triangle Bottle, the bottleneck of triangular flask are plugged with rubber stopper, and rubber stopper is fixedly connected with the fat tripe suction pipe of exhaust pipe, 20-100ml and drain pipe, exhaust Pipe and drain pipe one end are communicated with triangular flask inner cavity, and the other end is communicated with air, the fat tripe suction pipe one end 20-100ml and triangular flask Inner cavity is identical, and the other end connects one end of glass three-way pipe, and the other end of glass three-way pipe connects inlet tube, and inlet tube upper end connects Liquid storage bottle is connect, includes charging valve wherein on inlet tube;The glass three-way pipe other end connects bleeder valve, and bleeder valve lower end prevents from containing liquid Device, by the drop of liquid storage bottle and triangular flask control charging valve carry out liquid feeding, make solution quickly be full of fat tripe suction pipe, spilling it is molten Liquid is discharged through drain pipe, then is put to graduation mark by discharging valve and complete whole operation., operation letter high, highly reliable with precision Just the advantages of.
Application No. is 2017205602590 utility model patents to disclose a kind of novel laboratory charger device, Include the bottle with grinding port plug and the liquid-feeding tube with ground, bottle is connected with liquid-feeding tube by ground.The two is connected by ground, Make the two fully matching sealing, the entrance of air is avoided during liquid feeding, also prevents the volatilization of solvent.
By the analysis to comparing patent above, discovery does not have the liquid for solving the problems, such as that single volume can only be measured.
Utility model content
It can only be measured for the existing charger of solution and need to prepare multiple and different models caused by the liquid of single volume Charger frequently replaces the problem of use, and the utility model provides a kind of use for laboratory multrirange charger, by the way that bullet is arranged Property material made of liquid storage bottle store liquid, and amount liquid bottle tubulose bottleneck on different location be arranged three controlled by control valve The measuring pipet of opening and closing, and connect three measuring pipets with liquid storage bottle by spherical cushion chamber and catheter, pass through operation The opening and closing of control valve on three measuring pipets obtains different ranges come the amount of making liquid bottle, to enable a volumetric flask to obtain three The different ranges of kind greatly facilitate user's use.
Used technical solution is the utility model to solve above-mentioned technical problem:A kind of use for laboratory multrirange liquid feeding Device, including one with graduated amount liquid bottle and a liquid storage bottle, its length direction of the tubulose bottleneck upper edge of the amount liquid bottle is set successively It is equipped with measuring pipet I, measuring pipet II and measuring pipet III, it is respective that control is both provided on measuring pipet I, measuring pipet II and measuring pipet III The bottom of the control valve of opening and closing, measuring pipet I, measuring pipet II and measuring pipet III is pooled in a spherical cushion chamber, spherical The bottom of cushion chamber is provided with a catheter, which extend into after passing through the sealing-plug on liquid storage bottle bottleneck under liquid storage bottle Portion, the liquid storage bottle are made of elastic material, slow to make the liquid in it pass sequentially through catheter, spherical shape by extruding liquid storage bottle It rushes in III amount of the entering liquid bottle of measuring pipet I, measuring pipet II or measuring pipet of chamber and opening, due to measuring pipet I, measuring pipet II and amount The position of liquid pipe III is different, by operating the opening and closing of control valve on these three measuring pipets to measure the solution of different volumes.
As a kind of preferred embodiment of the utility model, the control valve is separately mounted to measuring pipet I, measuring pipet II, the tubulose bottleneck junction of measuring pipet III and amount liquid bottle, with reduction amount liquid error as far as possible.
As another preferred embodiment of the utility model, the control valve is by measuring pipet I, measuring pipet II and amount The cylindrical member that liquid pipe III is blocked, and the outside of measuring pipet I, measuring pipet II and measuring pipet III, the column are stretched out in one end of cylindrical member Part, which is located on the end outside measuring pipet I, measuring pipet II and measuring pipet III, is connected with handle, and controlling cylindrical member by the handle turns It is dynamic, it is located on the part inside measuring pipet I, measuring pipet II and measuring pipet III in cylindrical member and is provided with a through hole, in cylindrical member In rotation process, through hole thereon is connected to measuring pipet I, measuring pipet II and measuring pipet III Ji Wei control valve opening.
As another preferred embodiment of the utility model, the spherical bottom of the amount liquid bottle is erected at a fixed ring Interior, for the fixed ring by being fixedly connected at the top of a connecting plate and a telescopic rod, the bottom of telescopic rod is fixed on a firm banking On.
As a kind of being further improved for upper preferred embodiment, flexible soft cloth is set on the internal face of the fixed ring Pad.
Advantageous effect:The utility model stores liquid by the way that liquid storage bottle made of elastic material is arranged, and in amount liquid bottle Three measuring pipets opened and closed by control valve control are arranged in different location on tubulose bottleneck, and by spherical cushion chamber and lead Three measuring pipets are connect by liquid pipe with liquid storage bottle, are obtained come the amount of making liquid bottle by operating the opening and closing of the control valve on three measuring pipets Different ranges greatly facilitates user's use to enable a volumetric flask to obtain three kinds of different ranges.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model;
Reference numeral:1, measure liquid bottle, 2, measuring pipet II, 3, control valve, 4, measuring pipet III, 5, spherical cushion chamber, 6, sealing Plug, 7, catheter, 8, liquid storage bottle, 9, measuring pipet I, 10, fixed ring, 11, connecting plate, 12, telescopic rod, 13, firm banking.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work The every other embodiment obtained, shall fall within the protection scope of the present invention.
As shown in Figure 1, a kind of use for laboratory multrirange charger, including one with graduated amount liquid bottle 1 and a liquid storage bottle 8, its length direction of the tubulose bottleneck upper edge of the amount liquid bottle 1 is disposed with measuring pipet I 9, measuring pipet II 2 and measuring pipet III 4, The control valve 3 that control respectively opens and closes, measuring pipet I are both provided on measuring pipet I 9, measuring pipet II 2 and measuring pipet III 4 9, the bottom of measuring pipet II 2 and measuring pipet III 4 is pooled in a spherical cushion chamber 5, and the bottom of spherical cushion chamber 5 is provided with one and leads Liquid pipe 7, the catheter 7 extend into the lower part of liquid storage bottle 8 after the sealing-plug 6 on 8 bottleneck of liquid storage bottle, and the liquid storage bottle 8 is Elastic material is made, to make the liquid in it pass sequentially through catheter 7, spherical cushion chamber 5 and opening by squeezing liquid storage bottle 8 In III 4 amount of entering liquid bottle 1 of measuring pipet I 9, measuring pipet II 2 or measuring pipet, due to measuring pipet I 9, measuring pipet II 2 and measuring pipet III 4 position is different, by operating the opening and closing of control valve on these three measuring pipets to measure the solution of different volumes.
It is the basic embodiment of the utility model above, further can be improved, optimized and limited on the basis of above It is fixed:
As a kind of preferred embodiment of the utility model, the control valve 3 is separately mounted to measuring pipet I 9, measuring pipet II 2, the tubulose bottleneck junction of measuring pipet III 4 and amount liquid bottle 1, with reduction amount liquid error as far as possible;
As another preferred embodiment of the utility model, the control valve 3 is by measuring pipet I 9, measuring pipet II 2 The cylindrical member blocked with measuring pipet III 4, and the outer of measuring pipet I 9, measuring pipet II 2 and measuring pipet III 4 is stretched out in one end of cylindrical member Portion, which, which is located on the end outside measuring pipet I 9, measuring pipet II 2 and measuring pipet III 4, is connected with handle, passes through the handle Cylindrical member rotation is controlled, is located on the part inside measuring pipet I 9, measuring pipet II 2 and measuring pipet III 4 in cylindrical member and is provided with one Through hole, in cylindrical member rotation process, through hole thereon be connected to measuring pipet I 9, measuring pipet II 2 and measuring pipet III 4 be Control valve 3 is opened;
As another preferred embodiment of the utility model, the spherical bottom of the amount liquid bottle 1 is erected at a fixation In ring 10, which is fixedly connected by a connecting plate 11 with the top of a telescopic rod 12, and the bottom of telescopic rod 12 is fixed On a firm banking 13;
As a kind of being further improved for upper preferred embodiment, it is arranged on the internal face of the fixed ring 10 flexible soft Cloth pad.
When the utility model is used, the control valve 3 on measuring pipet I 9, measuring pipet II 2 and measuring pipet III 4 is opened When, at this time press liquid storage bottle 8, in liquid entered in spherical cushion chamber 5 along catheter 7, and respectively along measuring pipet I 9, amount In III 4 amount of entering liquid bottle 1 of liquid pipe II 2 and measuring pipet, but one unclamps liquid storage bottle 8, and the liquid in amount liquid bottle 1 is returned along former road Stream, last its can only at most remain into the position of measuring pipet I 9, at this time as minimum range;
When the control valve 3 on measuring pipet I 9 is closed, and the control valve 3 on measuring pipet II 2 and measuring pipet III 4 is opened, pressing Liquid storage bottle 8, in liquid entered in spherical cushion chamber 5 along catheter 7, and respectively along measuring pipet II 2 and measuring pipet III 4 into Enter into amount liquid bottle 1, but one unclamps liquid storage bottle 8, the liquid in amount liquid bottle 1 flows back along former road, and due on measuring pipet I 9 Control valve 3 is closed, and the position of measuring pipet II 2 can be remained by measuring the liquid in liquid bottle 1 at this time, at this time as second range;
When the control valve 3 on measuring pipet I 9 and measuring pipet II 2 is closed, and the control valve 3 on measuring pipet III 4 is opened, press Press liquid storage bottle 8, in liquid entered in spherical cushion chamber 5 along catheter 7, and along III 4 amount of entering liquid bottle 1 of measuring pipet It is interior, but one unclamps liquid storage bottle 8, the liquid in amount liquid bottle 1 flows back along former road, and due on measuring pipet I 9 and measuring pipet II 2 Control valve 3 is closed, and the position of measuring pipet III 4 can be remained by measuring the liquid in liquid bottle 1 at this time, at this time as maximum range.
In the utility model, the size of three ranges can be adjusted by the thickness of the tubulose bottleneck of knots modification liquid bottle 1, The size of three ranges can also be changed by changing the position of measuring pipet I 9, III 4 three of measuring pipet II 2 and measuring pipet, this It can all be adjusted according to actual needs a bit.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this practicality is new in other specific forms Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this practicality is new The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing in the equivalent requirements of the claims will be fallen All changes in justice and range are embraced therein.Any reference numeral in claim should not be considered as limitation Involved claim.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art The other embodiment being appreciated that.

Claims (5)

1. a kind of use for laboratory multrirange charger, including one with graduated amount liquid bottle(1)With a liquid storage bottle(8), feature It is:The amount liquid bottle(1)Tubulose bottleneck upper edge its length direction be disposed with measuring pipet I(9), measuring pipet II(2)With Measuring pipet III(4), in measuring pipet I(9), measuring pipet II(2)With measuring pipet III(4)On be both provided with control respectively open and close Control valve(3), measuring pipet I(9), measuring pipet II(2)With measuring pipet III(4)Bottom be pooled to a spherical cushion chamber(5)It is interior, Spherical cushion chamber(5)Bottom be provided with a catheter(7), the catheter(7)Across liquid storage bottle(8)Sealing-plug on bottleneck (6)After extend into liquid storage bottle(8)Lower part, the liquid storage bottle(8)It is made of elastic material, with by squeezing liquid storage bottle(8)Make Liquid in it passes sequentially through catheter(7), spherical cushion chamber(5)With open measuring pipet I(9), measuring pipet II(2)Or amount liquid Pipe III(4)The amount of entering liquid bottle(1)It is interior, due to measuring pipet I(9), measuring pipet II(2)With measuring pipet III(4)Position it is different, lead to It crosses and operates the opening and closing of control valve on these three measuring pipets to measure the solution of different volumes.
2. a kind of use for laboratory multrirange charger according to claim 1, it is characterised in that:The control valve(3)Point It An Zhuan not measuring pipet I(9), measuring pipet II(2), measuring pipet III(4)With amount liquid bottle(1)Tubulose bottleneck junction, to the greatest extent may be used It can reduction amount liquid error.
3. a kind of use for laboratory multrirange charger according to claim 1, it is characterised in that:The control valve(3)For By measuring pipet I(9), measuring pipet II(2)With measuring pipet III(4)The cylindrical member blocked, and measuring pipet I is stretched out in one end of cylindrical member (9), measuring pipet II(2)With measuring pipet III(4)Outside, which is located at measuring pipet I(9), measuring pipet II(2)And measuring pipet Ⅲ(4)It is connected with handle on external end, cylindrical member rotation is controlled by the handle, is located at measuring pipet I in cylindrical member(9)、 Measuring pipet II(2)With measuring pipet III(4)It is provided with a through hole on internal part, in cylindrical member rotation process, thereon Through hole and measuring pipet I(9), measuring pipet II(2)With measuring pipet III(4)Connection is control valve(3)It opens.
4. a kind of use for laboratory multrirange charger according to claim 1, it is characterised in that:The amount liquid bottle(1)'s Spherical bottom is erected at a fixed ring(10)It is interior, the fixed ring(10)Pass through a connecting plate(11)With a telescopic rod(12)Top It is fixedly connected, telescopic rod(12)Bottom be fixed on a firm banking(13)On.
5. a kind of use for laboratory multrirange charger according to claim 4, it is characterised in that:The fixed ring(10)'s Flexible soft cloth pad is set on internal face.
CN201721846835.4U 2017-12-26 2017-12-26 A kind of use for laboratory multrirange charger Expired - Fee Related CN207735020U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721846835.4U CN207735020U (en) 2017-12-26 2017-12-26 A kind of use for laboratory multrirange charger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721846835.4U CN207735020U (en) 2017-12-26 2017-12-26 A kind of use for laboratory multrirange charger

Publications (1)

Publication Number Publication Date
CN207735020U true CN207735020U (en) 2018-08-17

Family

ID=63119781

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201721846835.4U Expired - Fee Related CN207735020U (en) 2017-12-26 2017-12-26 A kind of use for laboratory multrirange charger

Country Status (1)

Country Link
CN (1) CN207735020U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111257526A (en) * 2020-03-12 2020-06-09 巴彦淖尔市医院 Analytical instrument and method for bladder cancer treatment target preparation

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111257526A (en) * 2020-03-12 2020-06-09 巴彦淖尔市医院 Analytical instrument and method for bladder cancer treatment target preparation
CN111257526B (en) * 2020-03-12 2022-12-13 巴彦淖尔市医院 Analytical instrument for bladder cancer treatment target preparation

Similar Documents

Publication Publication Date Title
US7097071B2 (en) Dispenser container technology
WO2010122568A1 (en) Bottle top dispenser with recirculating and draining mechanism
CN204522997U (en) Quantitative pipette
CN108535504A (en) A kind of trace liquid quantitative sampler and sampling loading methods
CN207735020U (en) A kind of use for laboratory multrirange charger
CN209327056U (en) A kind of corollary apparatus being loaded for the quantitative sampling of micro-fluidic chip and dilution
US2677480A (en) Combination volumetric burette
CN209576724U (en) A kind of Special combined dropper for chemical laboratory
CN208420451U (en) Chemical analysis tests dedicated auxiliary automatic liquid-suction device
CN201423289Y (en) Quantitative pipette with cock
CN208238876U (en) Tool, the container taken for liquid meter
CN210700181U (en) Trace liquid collecting and filling device
CN202427459U (en) Transfer pipette provided with bulb and pores and allowing for accurate discharge control
CN205749423U (en) A kind of acid buret
CN212915719U (en) Novel pipette convenient to measure medicine and supporting multi-functional auxiliary device
CN205199535U (en) Take glass piston's scale to inhale buret
CN208140729U (en) A kind of trace liquid quantitative sampler
CN201680876U (en) Precision volumetric flask with a built-in graded tube
CN207981212U (en) Novel liquid-transfering device based on liquid-transfering gun
CN208115785U (en) A kind of novel quantitative suction dropper
CN205941073U (en) Disposable ration blood sampling straw
CN207769824U (en) A kind of liquid relief and dropping liquid integral type experimental provision
CN206876422U (en) Fluid sampling compound tube
CN206121780U (en) Novel pipette of steerable discharge
CN209166570U (en) A kind of tool, container measuring liquid taking

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20180817

Termination date: 20181226