CN203170351U - Device for quantitatively adding solution in experiment - Google Patents
Device for quantitatively adding solution in experiment Download PDFInfo
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- CN203170351U CN203170351U CN 201320136869 CN201320136869U CN203170351U CN 203170351 U CN203170351 U CN 203170351U CN 201320136869 CN201320136869 CN 201320136869 CN 201320136869 U CN201320136869 U CN 201320136869U CN 203170351 U CN203170351 U CN 203170351U
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Abstract
The utility model discloses a device for quantitatively adding a solution in an experiment. The device comprises a cylinder body, a piston and a pressing rod, wherein a liquid suction pipe arranged on a liquid inlet is arranged at the bottom of the cylinder body; a liquid discharging pipe connected to a material outlet is arranged in the middle of the cylinder body; a pressing block is also arranged in the cylinder body; a sealing ring is arranged between the liquid inlet and the pressing block; the piston is arranged in the cylinder body and comprises an upper pressing plate and a lower pressing plate; a rubber ring is arranged between the upper pressing plate and the lower pressing plate; the pressing rod is connected with a connection piece arranged on the cylinder body; the piston is connected with the pressing rod through a connection rod; a liquid discharging amount adjustment plate is also arranged on the connection piece; a cambered slot is formed in the liquid discharging amount adjustment plate; a quantitative limiting button is arranged in the cambered slot; and the quantitative limiting button is upwards protruded and is positioned in a rotating travel of the pressing rod. The solution can be quantitatively added by limiting the lifting height of the pressing rod, so that the working efficiency of a tester is greatly improved; and moreover, the device is favorable for operation in a germfree environment so as to reduce the pollution probability and improve the test accuracy.
Description
Technical field
The utility model relates to the experimental facilities technical field, particularly relates to a kind of device that quantitatively adds solution in experiment.
Background technology
In laboratory work, ubiquity quantitatively adds the step of solution, and at present, this step of quantitative liquid getting is all realized by suction pipe in most of laboratory.But in a lot of processs of the test, need quantitative liquid getting repeatedly, tens times, even up to a hundred times.Like this, just have the step of quantitatively adding liquid repeatedly with suction pipe, the ratio that this process takies total testing time is also bigger, influences the test progress, causes the test efficiency of testing crew not high.Especially in some sterility test processes, with same suction pipe repeatable operation, may pollute, perhaps increase the probability of polluting; If operate with a suction pipe each time, not only increased the test operation step, further reduced test efficiency, and, also increased experimentation cost.
The utility model content
The technical problems to be solved in the utility model provides a kind of device that quantitatively adds solution in experiment, quantitatively adds the not high problem of solution efficient in the prior art in the process of the test in order to solve.
For solving the problems of the technologies described above, the utility model provides a kind of device that quantitatively adds solution in experiment, comprising:
Cylinder body is tubular, and the bottom is provided with inlet, and pipette is installed on the inlet; The cylinder body middle part is provided with liquid outlet, and drain pipe is connected on the liquid outlet; Briquetting also is installed in the cylinder body, and briquetting comprises disc top, and the round bar bottom that is connected with disc top, and the round bar bottom is stretched in the pipette, and the disc upper cap is on inlet; Between inlet and briquetting, be provided with sealing ring;
Piston is arranged in the cylinder body; Piston comprises top board and lower platen, is provided with cushion rubber between top board and the lower platen; The external diameter of top board and lower platen is less than the internal diameter of cylinder body, and the external diameter of cushion rubber is greater than the internal diameter of cylinder body;
Depression bar is connected with connector on being arranged on cylinder body, and piston is connected with depression bar by connecting rod; On connector, also be provided with the liquid outlet quantity adjustable plate; The liquid outlet quantity adjustable plate is provided with deep-slotted chip breaker, is provided with quantitative spacing button in deep-slotted chip breaker; Quantitative spacing button raises up, and is positioned at the rotational travel of depression bar, and demarcating on the liquid outlet quantity adjustable plate has volume data.
Further, be provided with torsion spring between depression bar and the connector.
Further, cylinder body is provided with and adds the liquid mouth; Add the liquid mouth and be positioned at the liquid outlet top, and when depression bar is positioned at the extreme higher position, adds the liquid mouth and be positioned at the piston below; Add the liquid mouth and be provided with seal cover.
Further, on the top of cylinder body loam cake is installed, and loam cake is provided with breather pipe.
Further, described device also comprises mounting cover, is arranged on inferior part of the cylinder block; Described mounting cover is provided with internal thread.
Further, described device also comprises: support; Described support comprises: connecting portion, supporting leg and supporting plate, and wherein, connecting portion is tubular, is provided with external screw thread; Supporting leg is at least three, is connected with connecting portion respectively; Supporting plate is connected with the bottom of all supporting legs respectively; Connecting portion is connected with mounting cover.
Further, the external diameter of top board and lower platen is 0.8～0.9 times of cylinder diameter; The external diameter of cushion rubber is 1.1～1.2 times of cylinder diameter.
The utility model beneficial effect is as follows:
The utility model has been realized the quantitative interpolation of solution by limiting the hoisting depth of depression bar, has improved the operating efficiency of testing crew greatly, and, be conducive in gnotobasis, operate, reduce contamination probability, improve the accuracy of test.
Description of drawings
Fig. 1 is a kind of structural representation that quantitatively adds the device of solution in experiment among the utility model embodiment;
Fig. 2 is the structural representation of a kind of support of the device that quantitatively adds solution in experiment among the utility model embodiment;
Fig. 3 is a kind of rack-mount structural representation that quantitatively adds the device of solution in experiment among the utility model embodiment.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, does not limit the utility model.
As shown in Figure 1, the utility model embodiment relates to a kind of device that quantitatively adds solution in experiment, comprising:
Cylinder body 1 is tubular, and the bottom is provided with inlet, and pipette 18 is installed on the inlet; Cylinder body 1 middle part is provided with liquid outlet, and drain pipe 4 is connected on the liquid outlet; Briquetting 10 also is installed in the cylinder body 1, and briquetting 10 comprises disc top, and the round bar bottom that is connected with disc top, and the round bar bottom is stretched in the pipette 18, and the disc upper cap is on inlet; Between inlet and briquetting 10, be provided with sealing ring 11;
Piston 5 is arranged in the cylinder body 1; Piston 5 comprises top board 8 and lower platen 9, is provided with cushion rubber 7 between top board 8 and the lower platen 9; The external diameter of top board 8 and lower platen 9 is less than the internal diameter of cylinder body 1, but the external diameter of top board 8 and lower platen 9 can not be too little, too for a short time, just can not limit cushion rubber 7 effectively, can not effectively seal, the external diameter of top board 8 and lower platen 9 is 0.8～0.9 times of cylinder body 1 internal diameter usually; The external diameter of cushion rubber 7 is greater than the internal diameter of cylinder body 1, but the external diameter of cushion rubber 7 can not be too big, and the external diameter of general cushion rubber 7 is 1.1～1.2 times of cylinder body 1 internal diameter;
Depression bar 2 is connected with connector 3 on being arranged on cylinder body 1, and piston 5 is connected with depression bar 2 by connecting rod 6; Depression bar 2 and connector 3 can be hinged, also can connect by bolt and nut, and piston 5 is connected with connecting rod 6 by bolt; On connector 3, also be provided with liquid outlet quantity adjustable plate 12; Liquid outlet quantity adjustable plate 12 is provided with deep-slotted chip breaker 13, is provided with quantitative spacing button 14 in deep-slotted chip breaker 13; Quantitative spacing button 14 can be fixed on the optional position of deep-slotted chip breaker 13, and quantitative spacing button 14 raises up, and is positioned at the rotational travel of depression bar 2.Demarcating on the liquid outlet quantity adjustable plate 12 has liquid outlet quantity, by regulating the position of quantitative spacing button 14, just can control the hoisting depth of depression bar 2, also just has been equivalent to limit the lifting height of piston 5 in cylinder body 1, therefore, has realized the quantitative control of liquid outlet quantity.Before equipment dispatches from the factory, can obtain the relation of liquid outlet quantity and depression bar 2 anglecs of rotation by experiment, demarcate volume data at liquid outlet quantity adjustable plate 12 then, when device uses, directly utilize liquid outlet quantity adjustable plate 12 to come the liquid outlet quantity of adjusting device.
In addition, torsion spring (owing to being subjected to blocking of connector 3, not shown among Fig. 1) is set between depression bar 2 and connector 3, like this, after depression bar 2 is depressed, under the effect of torsion spring, depression bar 2 will be upspring automatically, and having avoided needs the action of hand hoisting depression bar 2 after each artificial moulded rod 2 down.
This device also comprises mounting cover 15, is arranged on cylinder body 1 bottom, and mounting cover 15 is provided with internal thread, by mounting cover 15, this device and screwed solution bottle can be installed together, and also this device can be installed on the screwed support.
For some test, experimental enviroment is had relatively high expectations, for example cell culture test needs gnotobasis, for preventing solution from the top ejection of cylinder body 1 or spilling, contaminated environment, on the top of cylinder body 1 loam cake 16 is installed, and loam cake 16 is provided with breather pipe 17, cylinder body 1 is communicated with atmosphere by breather pipe 17.
Usually, when in to containers such as test tubes, adding solution, at first need connecting rod 6 and piston 5 are taken out from cylinder body 1, in cylinder body 1, add certain quantity solution then, install connecting rod and piston 5 then, by pressing down and promote depression bar 2, the solution in the molten device is sucked in the cylinder body 1, the final realization added solution to containers such as test tubes.But, for some test, requiring sterile working, the device through sterilization requires the least possible being touched, and therefore, when this kind test requirements document, carries out aforesaid operations, just brings difficulty to sterile working.For this reason, the utility model embodiment is provided with at cylinder body 1 and adds liquid mouth 23, is positioned at the liquid outlet top, and when depression bar 2 is positioned at the extreme higher position, adds liquid mouth 23 and be positioned at piston 5 belows; Add liquid mouth 23 and be provided with seal cover, seal cover can be the serum cap of similar liquids medicament, also can be sealing-plug.Like this, when adding liquid, depression bar 2 is risen to the extreme higher position, pull out sealing-plug, add liquid, perhaps, utilize syringe to pass serum cap and add liquid.Said structure can guarantee sterile working effectively, has promoted the accuracy of test.
In addition, as shown in Figure 2, this device also comprises support, and this support comprises: connecting portion 19, supporting leg 20 and supporting plate 21, and wherein, connecting portion 19 is tubular, outer setting has screw thread; Supporting leg 20 is at least three, is connected with connecting portion 19 respectively; Supporting plate 21 is connected with the bottom of three supporting legs 20 respectively.
As shown in Figure 3, connecting portion 19 is connected with mounting cover 15, like this, the container 22 that fills solution is placed on the supporting plate 21, pipette 18 will stretch in the container 22, like this, just can quantitatively add the operation of solution.
For the test that requires gnotobasis, above-mentioned each part (except the torsion spring) all can be made of working of plastics, by testing behind high temperature, the autoclaving.Because torsion spring does not directly contact with solution, can not carry out autoclave sterilization yet, perhaps, adopt the alternate manner sterilization.
As shown in Figure 3, the present embodiment device course of work is as follows:
Add solution from adding liquid mouth 23, descend moulded rod 2 then, connecting rod 6 drives piston 5 and moves downward, the space of 1 bottom constantly dwindles from piston 5 to cylinder body, and it is big that pressure constantly becomes, and briquetting 10 is under the effect of pressure, seal inlet with sealing ring 11, air and solution upwards squeeze the circle 7 that comes unglued under pressure, enter piston 5 tops; Move to the bottommost of cylinder body 1 at piston 5 after, upwards promote depression bar 2(or depression bar 2 under the effect of torsion spring, move upward), piston 5 constantly increases to the space of cylinder body 1 bottom, but inside does not have air pressure (perhaps air pressure is very low), and under atmospheric effect, atmospheric pressure is pressed into pipette 18 with the solution in the container 22, back down briquetting 10, enter the cylinder body 1 from inlet.Be positioned at the solution on piston top, arrive the liquid outlet place, from drain pipe 4, discharge.After pressing down several times, promoting, just the air in the cylinder body 1 has been arranged, just can quantitatively add liquid.At this moment, by setting the position of quantitative spacing button 14 in deep-slotted chip breaker 13, just can limit the hoisting depth of depression bar 2, and then the height of restriction piston 5 liftings, also be equivalent to define each liquor capacity that enters piston 5 tops from piston 5 belows, that is, define the liquor capacity of at every turn discharging from drain pipe 4, realized quantitative interpolation.
By above-described embodiment, the utility model embodiment has realized the quantitative interpolation of solution by limiting the hoisting depth of depression bar, has improved the operating efficiency of testing crew greatly, and, be conducive in gnotobasis, operate, improved the accuracy of test.
Although be the example purpose, preferred embodiment of the present utility model is disclosed, it also is possible those skilled in the art will recognize various improvement, increase and replacement, therefore, scope of the present utility model should be not limited to above-described embodiment.
Claims (7)
1. a device that quantitatively adds solution in experiment is characterized in that, comprising:
Cylinder body (1) is tubular, and the bottom is provided with inlet, and pipette (18) is installed on the inlet; Cylinder body (1) middle part is provided with liquid outlet, and drain pipe (4) is connected on the liquid outlet; Briquetting (10) also is installed in the cylinder body (1), and briquetting (10) comprises disc top, and the round bar bottom that is connected with disc top, and the round bar bottom is stretched in the pipette (18), and the disc upper cap is on inlet; Between inlet and briquetting (10), be provided with sealing ring (11);
Piston (5) is arranged in the cylinder body (1); Piston (5) comprises top board (8) and lower platen (9), is provided with cushion rubber (7) between top board (8) and the lower platen (9); The external diameter of top board (8) and lower platen (9) is less than the internal diameter of cylinder body (1), and the external diameter of cushion rubber (7) is greater than the internal diameter of cylinder body (1);
Depression bar (2) is connected with connector (3) on being arranged on cylinder body (1), and piston (5) is connected with depression bar (2) by connecting rod (6); On connector (3), also be provided with liquid outlet quantity adjustable plate (12); Liquid outlet quantity adjustable plate (12) is provided with deep-slotted chip breaker (13), is provided with quantitative spacing button (14) in deep-slotted chip breaker (13); Quantitative spacing button (14) raises up, and is positioned at the rotational travel of depression bar (2), and liquid outlet quantity adjustable plate (12) is gone up to demarcate volume data.
2. the device that quantitatively adds solution in experiment as claimed in claim 1 is characterized in that, is provided with torsion spring between depression bar (2) and the connector (3).
3. the device that quantitatively adds solution in experiment as claimed in claim 1 or 2 is characterized in that cylinder body (1) is provided with and adds liquid mouth (23); Add liquid mouth (23) and be positioned at liquid outlet top, and when depression bar (2) when being positioned at the extreme higher position, add liquid mouth (23) and be positioned at below the piston (5); Add liquid mouth (23) and be provided with seal cover.
4. the device that quantitatively adds solution in experiment as claimed in claim 3 is characterized in that, on the top of cylinder body (1) loam cake (16) is installed, and loam cake (16) is provided with breather pipe (17).
5. as claim 1, the 2 or 4 described devices that in experiment, quantitatively add solution, it is characterized in that described device also comprises mounting cover (15), be arranged on cylinder body (1) bottom; Described mounting cover (15) is provided with internal thread.
6. the device that quantitatively adds solution in experiment as claimed in claim 5 is characterized in that described device also comprises: support; Described support comprises: connecting portion (19), supporting leg (20) and supporting plate (21), and wherein, connecting portion (19) is tubular, is provided with external screw thread; Supporting leg (20) is at least three, is connected with connecting portion (19) respectively; Supporting plate (21) is connected with the bottom of all supporting legs (20) respectively; Connecting portion (19) is connected with mounting cover (15).
7. as claim 1,2, the 4 or 6 described devices that in experiment, quantitatively add solution, it is characterized in that the external diameter of top board (8) and lower platen (9) is 0.8～0.9 times of cylinder body (1) internal diameter; The external diameter of cushion rubber (7) is 1.1～1.2 times of cylinder body (1) internal diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320136869 CN203170351U (en) | 2013-03-25 | 2013-03-25 | Device for quantitatively adding solution in experiment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320136869 CN203170351U (en) | 2013-03-25 | 2013-03-25 | Device for quantitatively adding solution in experiment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203170351U true CN203170351U (en) | 2013-09-04 |
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ID=49067106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320136869 Expired - Fee Related CN203170351U (en) | 2013-03-25 | 2013-03-25 | Device for quantitatively adding solution in experiment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203170351U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107323857A (en) * | 2017-08-17 | 2017-11-07 | 重庆尚洁日化用品有限公司 | Lever piston press detergent bottle |
| CN107499692A (en) * | 2017-08-17 | 2017-12-22 | 重庆尚洁日化用品有限公司 | Cleaner packing bottle |
-
2013
- 2013-03-25 CN CN 201320136869 patent/CN203170351U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107323857A (en) * | 2017-08-17 | 2017-11-07 | 重庆尚洁日化用品有限公司 | Lever piston press detergent bottle |
| CN107499692A (en) * | 2017-08-17 | 2017-12-22 | 重庆尚洁日化用品有限公司 | Cleaner packing bottle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130904 Termination date: 20170325 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |