CN204495784U - Titration application of sample zero-setting system - Google Patents
Titration application of sample zero-setting system Download PDFInfo
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- CN204495784U CN204495784U CN201520152026.8U CN201520152026U CN204495784U CN 204495784 U CN204495784 U CN 204495784U CN 201520152026 U CN201520152026 U CN 201520152026U CN 204495784 U CN204495784 U CN 204495784U
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- bottle
- application
- sample
- titration
- bottle stopper
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Abstract
The utility model provides a kind of titration application of sample zero-setting system, comprises buret and titration stand, also comprises gas handling system, application of sample pipe, the reagent bottle being provided with bottle stopper and bottle stopper stationary installation; Air pump is controlled by foot-switch, air pump provides power that the vs in reagent bottle is pumped into transfer pipet to enter in buret, when vs exceedes the scale mark of requirement, close pump, the vs suck-back higher than scale mark part in buret enters in reagent bottle by the negative pressure in reagent bottle.The utility model structure is simple, avoid in the operation of artificial application of sample because of spill vs, repeatedly manually return to zero cause dangerous, expend time in, the drawback such as lower efficiency, the labour intensity of the person that greatly alleviates titration operation, saves reagent, and ensures the work efficiency of batch titration work further.
Description
Technical field
The utility model relates to laboratory equipment, more specifically, relates to a kind of titration application of sample zero-setting system.
Background technology
Titration is the technological means of certain chemical composition of mensuration that the fields such as chemistry, biology, Food Science are commonly used, conventional titration mode pours vs for being taken off by buret in buret, buret clamp is returned butterfly clamp, then return to zero, finally carry out titration and reading, there is following drawback in the process: the mode of application of sample is directly pour into buret from buret upper end by the vs prepared, because buret back cut diameter is all little, easily spill when pouring vs into, if vs is corrosive, toxicity, have larger injury to laboratory technician; Vs in discharge piping is slowly needed until concave meniscus aims at zero graduation when returning to zero, normal in operation due to valve-off cause not in time release vs too much, thus the process that needs repeat with vs and zeroing, the time of meeting at substantial, lower efficiency; Need in the time of adding at substantial in vs and zeroing step in the method in titration in enormous quantities.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of easy to operate, the titration application of sample zero-setting system that zeroing efficiency is high.
Above-mentioned purpose of the present utility model is achieved by the following technical programs:
A kind of titration application of sample zero-setting system is provided, comprises buret and titration stand, also comprise gas handling system, application of sample pipe, the reagent bottle being provided with bottle stopper and bottle stopper stationary installation; Described gas handling system comprises air pump and connects the draft tube of air pump and reagent bottle; Described draft tube is inserted through bottle stopper, but does not contact the liquid in reagent bottle; Described application of sample pipe one end to be inserted in reagent bottle through bottle stopper and is stretched in the liquid of reagent bottle, and the other end of application of sample pipe stretches into buret; One end that described application of sample pipe stretches into buret is the tip with thinner mouth.According to the requirement of experiment of user, described tip can be placed in the center position of buret center zero position or other scales.The utility model utilizes air pump to be pumped in buret by the vs in reagent bottle, and the part vs suck-back in buret is entered in reagent bottle by the negative pressure after being quit work by air pump in reagent bottle.
Preferably, described system also comprises barometric control unit, and described barometric control unit comprises pipeline and is arranged on ducted air pressure regulator; Described pipeline is inserted by described bottle stopper, but does not contact the liquid in reagent bottle.Air pressure when barometric control unit is for regulating air pump to work in reagent bottle bottle, prevents the excessive liquid splash of air pressure.
Preferably, the unlatching of described air pump is controlled by foot-switch.Step on foot-switch, booster air pump; Unclamp foot-switch, air pump quits work.Being an of short duration process toward adding reagent in buret, adopting foot-switch to carry out control pump, can On/Off pump rapidly, prevent the reagent that inserts too much, and from application of sample and zeroing work, fully liberate the both hands of operator.
Preferably, described application of sample pipe comprises U-shaped pipe and connecting pipe, and described tip is arranged at U-shaped tube end; U-shaped pipe is connected with one end of connecting pipe, and the other end of connecting pipe is inserted in described reagent bottle by described bottle stopper.The application of sample pipe of the utility model device is longer, by subsection setup application of sample pipe, is conducive to unpicking and washing of application of sample pipe, not fragile, also convenient manufacture.
Further preferably, the words of application of sample pipe subsection setup, described U-shaped pipe can directly adopt the transfer pipet of 5mL specification to be processed by alcohol blast burner, described transfer pipet is processed into three sections, wherein one section is a section containing the thin mouth one end of transfer pipet, and one section is the c section of the transfer pipet other end and the b section of connection a section and c section.
Preferably, the length of described a section is than the distance 3cm of the buret mouth of pipe apart from zero point; Described b section is 1.5cm.The size of the different section of described application of sample pipe adopts described preferred setting, can ensure, when use transfer pipet pipe pipe U-shaped as application of sample, to obtain best application of sample and the effect of zeroing.
Preferably, bottle stopper stationary installation is also comprised; Described bottle stopper stationary installation comprises bottle cap, pulling buckle and larynx hoop; Described bottle cap internal diameter is greater than described bottle stopper external diameter, and described bottle cap covers on described bottle stopper, and described larynx cranse is in reagent bottle bottleneck, described pulling buckle comprises stiff end and movable end, movable end is provided with crotch, and stiff end is fixed on bottle cap, and the crotch of movable end can hook the bottom of described larynx hoop.Bottle stopper stationary installation is set, when preventing reagent bottle internal gas pressure excessive, the bottle stopper of reagent bottle is gone out, ensure that the security of experiment; Further, due to the setting of bottle stopper stationary installation, the stiff end of pulling buckle is fixed on bottle cap, movable end arranges the bottom that crotch hooks larynx hoop, is filled in tightly in reagent bottle by bottle stopper, can prevent the Leakage Gas in reagent bottle, ensure that the impermeability of reagent bottle and bottle stopper entirety, thus ensure that the liquid in reagent bottle enters in buret under the effect of pump, and after ensure that closedown pump, titration application of sample zero-setting system inside forms negative pressure.
More preferably, the internal diameter of described bottle cap is greater than described bottle stopper external diameter 0.5mm.
Preferably, have circular hole at the top of described bottle cap, the diameter of described circular hole is less than the external diameter of described bottle stopper.Opening circular hole at the top of bottle cap, without the need to boring multiple hole so that draft tube, transfer pipet etc. pass through on bottle cap again, simplifying manufacturing process.
More preferably, the diameter of described circular hole is less than the external diameter 0.5mm of described bottle stopper.
The beneficial effects of the utility model are as follows:
A kind of titration application of sample zero-setting system described in the utility model, easy to use, efficiency is high; This system comprises gas handling system, application of sample pipe, the reagent bottle being provided with bottle stopper and bottle stopper fixed system; The parts of native system substantially conventionally can be bought or existing parts can be able to be obtained by simple transformation.Air pump provides power that the vs in reagent bottle is pumped into transfer pipet to enter in buret, and when vs exceedes the scale mark of requirement, close pump, the vs suck-back higher than scale mark part in buret enters in reagent bottle by the negative pressure in reagent bottle.Convenient and swift for ensureing that native system uses further, the unlatching of described pump is controlled by foot-switch; Step on foot-switch, start pump; Unclamp foot-switch, pump quits work.Further, also comprise bottle stopper stationary installation, described bottle stopper stationary installation comprises bottle cap, pulling buckle and larynx hoop; Bottle stopper stationary installation is set, when preventing reagent bottle internal gas pressure excessive, the bottle stopper of reagent bottle is gone out, ensure that the security of experiment and the impermeability of native system; Due to the setting of bottle stopper stationary installation, bottle stopper can be filled in reagent bottle tightly, the Leakage Gas in reagent bottle can be prevented, ensure that the impermeability of reagent bottle and bottle stopper entirety, thus ensure that the liquid in reagent bottle enters in buret under the effect of pump, and after ensure that closedown pump, titration application of sample zero-setting system inside forms negative pressure.
Accompanying drawing explanation
Fig. 1 is the utility model system scheme of installation.
Fig. 2 is U-tube schematic diagram.
Fig. 3 is the utility model bottle stopper stationary installation scheme of installation (unclamping bottle stopper stationary installation).
Fig. 4 is the utility model bottle stopper stationary installation scheme of installation (fastening bottle stopper stationary installation).
Fig. 5 is the vertical view schematic diagram of the reagent bottle being provided with stationary installation.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.The utility model embodiment accompanying drawing, only for exemplary illustration, can not be interpreted as restriction of the present utility model.To those skilled in the art, in accompanying drawing, some known features and explanation thereof may be omitted is understandable.
embodiment 1
As shown in Figure 1, the utility model provides a kind of titration application of sample zero-setting system, comprises gas handling system, application of sample pipe 1, reagent bottle 2, bottle stopper 3 and barometric control unit 4; Described gas handling system comprises gas air pump 5 and connects the draft tube 6 of air pump 5 and reagent bottle 2, and described bottle stopper 3 is filled in reagent bottle 2 bottleneck; Described draft tube 6 to be inserted in reagent bottle 2 by bottle stopper 3 but is not contacted the liquid of reagent bottle 2; Described application of sample pipe 1 one end to be inserted in reagent bottle 2 by bottle stopper 3 and is stretched in the liquid of reagent bottle 2, and the other end of application of sample pipe 1 stretches into buret 7; One end that described application of sample pipe 1 stretches into buret 7 is the tip 11 with thinner mouth.Described most advanced and sophisticated 11 are placed in buret 7 center zero place 8.
Described barometric control unit 4 comprises pipeline and is arranged on ducted air pressure regulator; Described pipeline to be inserted in reagent bottle 2 by described bottle stopper 3 but is not contacted the liquid of reagent bottle 2.
The unlatching of described air pump 5 is controlled by foot-switch 51; Step on foot-switch 51, booster air pump 5; Unclamp foot-switch 51, air pump 5 quits work.
Described application of sample pipe 1 comprises U-shaped pipe 12 and connecting pipe 13, and as shown in Figure 2, described most advanced and sophisticated 11 are arranged at U-shaped pipe 12 end; U-shaped pipe 12 is connected with one end of connecting pipe 13, and the other end of connecting pipe 13 is inserted in reagent bottle 2 by described bottle stopper 3.
Further preferably, the words of application of sample pipe subsection setup, described U-shaped pipe can directly adopt the transfer pipet of 5mL specification to be processed by alcohol blast burner, described transfer pipet is processed into three sections, wherein one section is a section containing the thin mouth one end of transfer pipet, and one section is the c section of the transfer pipet other end and the b section of connection a section and c section.
Preferably, the length of described a section is than the distance 3cm of the buret mouth of pipe apart from zero point; Described b section is 1.5cm.The size of the different section of described application of sample pipe adopts described preferred setting, can ensure, when use transfer pipet pipe pipe U-shaped as application of sample, to obtain best application of sample and the effect of zeroing.
Buret 7 center zero place 8 is adjusted to the tip 11 of the U-shaped pipe 12 of vs by reagent bottle 2, and fixedly make it be in center, the present embodiment utilizes air pump 5 to be pumped in buret 7 by the vs in reagent bottle 2, and the vs suck-back higher than null portions in buret 7 is entered in reagent bottle 2 by the negative pressure after being quit work by air pump 5 in reagent bottle 2.
embodiment 2
As shown in Figure 1, the utility model provides a kind of titration application of sample zero-setting system, comprises in sampling system, application of sample pipe 1, reagent bottle 2, bottle stopper 3 barometric control unit 4 and bottle stopper stationary installation 9(accompanying drawing 1 and not marking); Described gas handling system comprises air pump 5 and connects the draft tube 6 of air pump 5 and reagent bottle 2, and described bottle stopper 3 is filled in reagent bottle 2 bottleneck; Described draft tube 6 to be inserted in reagent bottle 2 by bottle stopper 3 but is not contacted the liquid of reagent bottle 2; Described application of sample pipe 1 one end to be inserted in reagent bottle 2 by bottle stopper 3 and is stretched in the liquid of reagent bottle 2, and the other end of application of sample pipe 1 stretches into buret 7; One end that described application of sample pipe 1 stretches into buret 7 is the tip 11 with thinner mouth.Described most advanced and sophisticated 11 are placed in buret 7 center zero place 8.
Described barometric control unit 4 comprises pipeline and is arranged on ducted air pressure regulator; Described pipeline to be inserted in reagent bottle 2 by described bottle stopper 3 but is not contacted the liquid of reagent bottle 2.
The unlatching of described air pump 5 is controlled by foot-switch 51; Step on foot-switch 51, booster air pump 5; Unclamp foot-switch 51, air pump 5 quits work.
Described application of sample pipe 1 comprises U-shaped pipe 12 and connecting pipe 13, and as shown in Figure 2, described most advanced and sophisticated 11 are arranged at U-shaped pipe 12 end; U-shaped pipe 12 is connected with one end of connecting pipe 13, and the other end of connecting pipe 13 is inserted in reagent bottle 2 by described bottle stopper 3.
As shown in Figure 3 or Figure 4, described bottle stopper stationary installation 9 comprises bottle cap 91, pulling buckle 92 and larynx hoop 93; Described bottle cap 91 internal diameter is greater than described bottle stopper 3 external diameter, described bottle cap 91 covers on described bottle stopper 3, described larynx hoop 93 encloses in reagent bottle 2 bottleneck, described pulling buckle 92 comprises stiff end 921 and movable end 922, movable end 922 is provided with crotch, stiff end 921 is fixed on bottle cap 91, and the crotch of movable end 922 hooks the bottom of described larynx hoop 93.
The internal diameter of described bottle cap 91 is greater than described bottle stopper 3 external diameter 0.5mm.
As shown in Figure 5, have circular hole at the top of described bottle cap 91, the diameter of described circular hole is less than the external diameter of described bottle stopper 3.
The diameter of described circular hole is less than the external diameter 0.5mm of described bottle stopper 3.
Buret 7 center zero place 8 is adjusted to the tip 11 of the U-shaped pipe 12 of vs by reagent bottle 2, and fixedly make it be in center, the present embodiment utilizes air pump 5 to be pumped in buret 7 by the vs in reagent bottle 2, and the vs suck-back higher than null portions in buret 7 is entered in reagent bottle 2 by the negative pressure after being quit work by air pump 5 in reagent bottle 2.The setting of bottle stopper stationary installation 9, bottle stopper 3 can be filled in tightly in reagent bottle 2, the Leakage Gas in reagent bottle 2 can be prevented, ensure that the impermeability of reagent bottle 2 and bottle stopper 3 entirety, thus ensure that the liquid in reagent bottle 2 enters in buret 7 under the effect of air pump 5, and after ensure that closedown air pump 5, titration application of sample zero-setting system inside forms negative pressure.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included in of the present utility model comprising within scope.
Claims (8)
1. a titration application of sample zero-setting system, comprises buret and titration stand, it is characterized in that, also comprises gas handling system, application of sample pipe, the reagent bottle being provided with bottle stopper and bottle stopper stationary installation; Described gas handling system comprises air pump and connects the draft tube of air pump and reagent bottle; Described draft tube is inserted but the liquid do not contacted in reagent bottle through bottle stopper; Described application of sample pipe one end to be inserted in reagent bottle through bottle stopper and is stretched in the liquid of reagent bottle, and the other end of application of sample pipe stretches into buret; One end that described application of sample pipe stretches into buret is the tip with thinner mouth.
2. titration application of sample zero-setting system according to claim 1, is characterized in that, also comprise barometric control unit, and described barometric control unit comprises pipeline and is arranged on the air pressure regulator of pipeline; One end of described pipeline is inserted by described bottle stopper.
3. titration application of sample zero-setting system according to claim 1, it is characterized in that, the unlatching of described air pump is controlled by foot-switch.
4. titration application of sample zero-setting system according to claim 1, it is characterized in that, described application of sample pipe comprises U-shaped pipe and connecting pipe, and described tip is arranged at U-shaped tube end; U-shaped pipe is connected with one end of connecting pipe, and the other end of connecting pipe is inserted in described reagent bottle by described bottle stopper.
5. titration application of sample zero-setting system according to claim 1, is characterized in that, also comprise bottle stopper stationary installation; Described bottle stopper stationary installation comprises bottle cap, pulling buckle and larynx hoop; Described bottle cap internal diameter is greater than described bottle stopper external diameter, and described bottle cap covers on described bottle stopper, and described larynx cranse is in reagent bottle bottleneck, described pulling buckle comprises stiff end and movable end, movable end is provided with crotch, and stiff end is fixed on bottle cap, and the crotch of movable end can hook the bottom of described larynx hoop.
6. titration application of sample zero-setting system according to claim 5, it is characterized in that, the internal diameter of described bottle cap is greater than described bottle stopper external diameter 0.5mm.
7. titration application of sample zero-setting system according to claim 5, it is characterized in that, have circular hole at the top of described bottle cap, the diameter of described circular hole is less than the external diameter of described bottle stopper.
8. titration application of sample zero-setting system according to claim 7, it is characterized in that, the diameter of described circular hole is less than the external diameter 0.5mm of described bottle stopper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520152026.8U CN204495784U (en) | 2015-03-18 | 2015-03-18 | Titration application of sample zero-setting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520152026.8U CN204495784U (en) | 2015-03-18 | 2015-03-18 | Titration application of sample zero-setting system |
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| Publication Number | Publication Date |
|---|---|
| CN204495784U true CN204495784U (en) | 2015-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520152026.8U Expired - Fee Related CN204495784U (en) | 2015-03-18 | 2015-03-18 | Titration application of sample zero-setting system |
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| CN (1) | CN204495784U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105806993A (en) * | 2016-04-08 | 2016-07-27 | 天津中水有限公司 | Method for detecting chloride in reclaimed water and titration apparatus |
| CN107121361A (en) * | 2017-04-24 | 2017-09-01 | 江苏工程职业技术学院 | A kind of textile drips diffusion time test equipment |
-
2015
- 2015-03-18 CN CN201520152026.8U patent/CN204495784U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105806993A (en) * | 2016-04-08 | 2016-07-27 | 天津中水有限公司 | Method for detecting chloride in reclaimed water and titration apparatus |
| CN105806993B (en) * | 2016-04-08 | 2018-08-21 | 天津中水有限公司 | Detect the detection method and titration outfit of chloride in recycled water water |
| CN107121361A (en) * | 2017-04-24 | 2017-09-01 | 江苏工程职业技术学院 | A kind of textile drips diffusion time test equipment |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150722 Termination date: 20190318 |