CN201680876U - Precision volumetric flask with a built-in graded tube - Google Patents

Precision volumetric flask with a built-in graded tube Download PDF

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Publication number
CN201680876U
CN201680876U CN2010202059115U CN201020205911U CN201680876U CN 201680876 U CN201680876 U CN 201680876U CN 2010202059115 U CN2010202059115 U CN 2010202059115U CN 201020205911 U CN201020205911 U CN 201020205911U CN 201680876 U CN201680876 U CN 201680876U
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CN
China
Prior art keywords
volumetric flask
tube
built
graduated tube
bottle
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
CN2010202059115U
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Chinese (zh)
Inventor
张凤霞
程佑法
刘海彬
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.)
National Gold & Diamond Testing Center
Original Assignee
National Gold & Diamond Testing Center
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 National Gold & Diamond Testing Center filed Critical National Gold & Diamond Testing Center
Priority to CN2010202059115U priority Critical patent/CN201680876U/en
Application granted granted Critical
Publication of CN201680876U publication Critical patent/CN201680876U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a glass instrument, particularly a precision volumetric flask with a built-in graded tube, which comprises a flask body and a ground stopper disposed on the flask top. The utility model is characterized in that a vertical graded tube is disposed in the flask and attached to the wall from the bottom up; a liquid inlet port is disposed on the bottom end of the graded tube, and a liquid outlet port is disposed on the top end of the graded tube; the side of the tube facing inside is opaque. The precision volumetric flask with a built-in graded tube is simple-structured, and can accurately fix the volume, which is superior than the traditional volumetric flask for overcoming the defect that only the fixed volume can be fixed, by using the U-shaped tube principle according to the scale on the tube.

Description

A kind of accurate volumetric flask that built-in graduated tube is housed
(1) technical field
The utility model relates to a kind of glass apparatus, particularly a kind of accurate volumetric flask that built-in graduated tube is housed.
(2) background technology
Volumetric flask is the accurate instrument of using for the solution of the certain accurately amount of substance concentration of preparation, and normal and transfer pipet is used.At present, the volumetric flask volume that the laboratory is used all is fixing specification, can only constant volume to a certain fixed volume, usually have 25,50,100,250,500, several specifications such as 1000mL, when continuous preparation different volumes amount solution, must be with the volumetric flask of different size, waste time and energy, cause the user to use inconvenience.
(3) summary of the invention
The utility model provides the accurate volumetric flask that built-in graduated tube be housed of the accurate constant volume of a kind of energy to different volumes in order to remedy the defective of prior art.
The utility model is achieved by the following technical solution:
A kind of accurate volumetric flask that built-in graduated tube is housed, comprise bottle and the grinding port plug that is installed in bottle mouth position, it is characterized in that: from the bottle end one vertical graduated tube is installed upwards near inwall in bottle, the graduated tube bottom is provided with inlet, and the top of graduated tube is provided with liquid outlet.
This is equipped with the accurate volumetric flask of built-in graduated tube, and the side of graduated tube in bottle is opaque, so that reading.
This is equipped with the accurate volumetric flask of built-in graduated tube, the scale of graduated tube, and when representing the concave meniscus of liquid in graduated tube equal with scale mark, the total bulking value of liquid in the bottle.Inwall at volumetric flask has been placed graduated tube, the graduated tube bottom communicates with the volumetric flask bottom, according to U type pipe principle, the height of liquid level is identical with the height of liquid level in the volumetric flask in the graduated tube, the internal diameter of graduated tube is less, observing concave meniscus is easier to the tangent ratio of scale mark, accurately constant volume is to fixing volume, according to scale values different on the graduated tube, make this volumetric flask can the different volume of constant volume, like this, change the conventional capacity bottle and can only cause user's inconvenient problem with use by a certain fixed volume of constant volume.
The beneficial effects of the utility model are: this is equipped with the accurate volumetric flask of built-in graduated tube, simple in structure, utilize U type pipe principle according to scale values different on the graduated tube, accurately constant volume is to fixing volume, changed the defective that the conventional capacity bottle can only constant volume a certain fixed volume, provided convenience to people.
(4) description of drawings
Below in conjunction with accompanying drawing the utility model is further described.
Accompanying drawing 1 is equipped with the structural representation of the accurate volumetric flask of built-in graduated tube for the utility model.
Among the figure, 1 bottle, 2 grinding port plugs, 3 graduated tubes, 4 inlets, 5 liquid outlets.
(5) embodiment
Accompanying drawing is a kind of specific embodiment of the present utility model.This is equipped with the accurate volumetric flask of built-in graduated tube, comprise bottle 1 and the grinding port plug 2 that is installed in bottle mouth position, it is characterized in that: in bottle 1, from the bottle end one vertical graduated tube 3 is installed upwards near inwall, graduated tube 3 bottoms are provided with inlet 4, the top of graduated tube 3 is provided with liquid outlet 5, and the side of graduated tube 3 in bottle is opaque.
This is equipped with the accurate volumetric flask of built-in graduated tube, in use, in bottle 1, add liquid by the capacity bottleneck, liquid in the bottle 1 enters in the graduated tube 3 through graduated tube 3 bottom inlets 4, observe liquid level rising situation by built-in graduated tube 3, when treating that the concave meniscus of liquid in the graduated tube 3 is equal with the scale mark that needs bulking value, stop to add liquid toward bottle 1 in, the cumulative volume of the interior liquid of volumetric flask this moment is the bulking value of scale mark demonstration for this reason.Volume as required can add the reagent with different scale mark corresponding amounts, can accurately obtain the volume of different amounts, has made things convenient for operation.

Claims (2)

1. accurate volumetric flask that built-in graduated tube is housed, comprise bottle (1) and be installed in the grinding port plug (2) of bottle mouth position, it is characterized in that: in bottle (1), from the bottle end one vertical graduated tube (3) is installed upwards near inwall, graduated tube (3) bottom is provided with inlet (4), and the top of graduated tube (3) is provided with liquid outlet (5).
2. the accurate volumetric flask that built-in graduated tube is housed according to claim 1 is characterized in that: the side of graduated tube (3) in bottle is opaque.
CN2010202059115U 2010-05-27 2010-05-27 Precision volumetric flask with a built-in graded tube Expired - Fee Related CN201680876U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010202059115U CN201680876U (en) 2010-05-27 2010-05-27 Precision volumetric flask with a built-in graded tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010202059115U CN201680876U (en) 2010-05-27 2010-05-27 Precision volumetric flask with a built-in graded tube

Publications (1)

Publication Number Publication Date
CN201680876U true CN201680876U (en) 2010-12-22

Family

ID=43345916

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010202059115U Expired - Fee Related CN201680876U (en) 2010-05-27 2010-05-27 Precision volumetric flask with a built-in graded tube

Country Status (1)

Country Link
CN (1) CN201680876U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105158120A (en) * 2015-09-16 2015-12-16 常州进出口工业及消费品安全检测中心 Soaking cylinder for migration testing of food contact materials
CN107774346A (en) * 2016-08-26 2018-03-09 上海市嘉定区疾病预防控制中心 A kind of precision glass volumetric apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105158120A (en) * 2015-09-16 2015-12-16 常州进出口工业及消费品安全检测中心 Soaking cylinder for migration testing of food contact materials
CN107774346A (en) * 2016-08-26 2018-03-09 上海市嘉定区疾病预防控制中心 A kind of precision glass volumetric apparatus

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20101222

Termination date: 20110527