CN211263344U

CN211263344U - Titration test device for chemical analysis

Info

Publication number: CN211263344U
Application number: CN201921655476.3U
Authority: CN
Inventors: 吕雅娟; 李变花; 张建源
Original assignee: Fenyang College Of Shanxi Medical University
Current assignee: Fenyang College Of Shanxi Medical University
Priority date: 2019-09-30
Filing date: 2019-09-30
Publication date: 2020-08-14
Anticipated expiration: 2029-09-30

Abstract

The utility model discloses a chemical analysis titration test device, including the device main part, the bottom of device main part is equipped with the base, and top one side of base is equipped with the pond, and inside one side in pond is equipped with the heater, and the thermometer is installed to its inside opposite side, and the mount is installed on the top of base. The utility model controls the position of the reagent bottle through the electric telescopic rod, when the chemical reaction is to absorb heat, the electric telescopic rod can lower the position of the reagent bottle into the water pool, and the liquid in the water pool is heated through the heater, so that the device can meet the use of the experiment of endothermic chemical reaction; the flow changer of design in buret bottom can effectual control reagent the volume of dripping into, can audio-visually know the flexible volume of threaded rod and the lifting volume to the ejector pin through the scale on changeing the hand to can control the flow of reagent follow floater bottom in the buret, this design is more accurate for artifical extrusion rubber nipple.

Description

Titration test device for chemical analysis

Technical Field

The utility model belongs to the technical field of the chemistry experiment device, particularly, relate to a chemical analysis titration test device.

Background

Titration is a means of quantitative analysis, also a chemical test operation, it determines the content of a certain solute through the quantitative reaction of two solutions, it is to point out the titration end point according to the color change of the indicator, then measure the consumption volume of the standard solution, calculate and analyze the result, the titration test apparatus is just using this characteristic, according to the difference of the chemical test, the kind of titration apparatus is many, but the existing titration apparatus still has the following disadvantages:

1. chemical reaction has endothermic and exothermic branch, can satisfy normal chemical experiment to the current titration outfit of exothermic chemical reaction and use, but to endothermic chemical reaction, current device just does not have exclusive equipment to heat reagent, need go elsewhere and take alcohol burner or water heater to heat the reagent bottle, not only the time-wasting, these instruments still can occupy limited experimental space moreover.

2. The current buret all utilizes the rubber nipple on the experimenter extrusion test tube to make the reagent in the test tube drip to the reagent bottle, and this kind of mode is simple and convenient, but has uncontrollable factor, that is the experimenter is a little with strength, and the reagent that drips into in the reagent bottle will be excessive to the influence titrates the experiment effect, and current device does not have the means of effectual control reagent volume of dripping into again.

Therefore in order to solve the above problems, the utility model provides a chemical analysis titration test device.

An effective solution to the problems in the related art has not been proposed yet.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a chemical analysis titration test device to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a chemical analysis titration test device comprises a device main body, wherein a base is arranged at the bottom end of the device main body, a water pool is arranged on one side of the top end of the base, a heater is arranged on one side inside the water pool, a thermometer is arranged on the other side inside the water pool, a fixing frame is arranged at the top end of the base, a fixing seat is fixedly arranged at the bottom end of the fixing frame, electric telescopic rods are arranged at four corners of the top end of the fixing seat, a clamp is fixedly arranged at the top end of each electric telescopic rod, a clamp ring is installed at the clamp ring in a penetrating connection mode, a first test tube is arranged on one side of the fixing frame, a flow changer is installed at the bottom end of the first test tube, a threaded tube is fixedly installed inside the flow changer, a threaded rod is installed in the threaded tube, the other end of the threaded rod is provided with a mandril in a sliding connection mode, the top end of the mandril is provided with a hollow limiting seat, and the hollow limiting seat is fixedly connected with the top end of the flow changer.

Furthermore, a floating ball is installed at the top end of the flow changer, and the top end of the ejector rod is in butt joint with the bottom end of the floating ball.

Further, the opposite side of mount is equipped with the second test tube, the equal fixed mounting in both sides of mount has the test tube fixation clamp, first test tube with the second test tube all with test tube fixation clamp fixed connection.

Furthermore, one side fixed mounting of rand has the connection dead lever, the one end fixed mounting who connects the dead lever has the reagent bottle mount, install the reagent bottle on the reagent bottle mount.

Furthermore, the bottom end of the fixed seat is fixedly connected with the top end of the base.

Furthermore, an external power supply and a control switch are arranged on the device main body, the external power supply is electrically connected with the control switch, and the control switch is electrically connected with the electric telescopic rod and the heater.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model discloses in control the position of reagent bottle through electric telescopic handle, when chemical reaction is when absorbing the heat, electric telescopic handle can descend the position of reagent bottle to the pond in, through the liquid heating of heater in to the pond for the device can satisfy the use to the experiment of endothermic chemical reaction.

2. The flow changer of design in buret bottom can effectual control reagent the volume of dripping into, can audio-visually know the flexible volume of threaded rod and the lifting volume to the ejector pin through the scale on changeing the hand to can control the flow of reagent follow floater bottom in the buret, this design is more accurate for artifical extrusion rubber nipple.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic plan view of the present invention;

FIG. 2 is a schematic view of the dropper of the present invention;

FIG. 3 is a structural diagram of the flow changer of the present invention;

FIG. 4 is a view showing a clamp according to the present invention;

fig. 5 is a structure diagram of the fixing frame of the reagent bottle of the present invention.

Reference numerals:

1. a device main body; 2. a base; 3. a fixed mount; 301. a fixed seat; 302. an electric telescopic rod; 303. a test tube fixing clamp; 4. clamping a hoop; 401. a collar; 402. a reagent bottle fixing frame; 403. a reagent bottle; 404. connecting a fixed rod; 5. a first test tube; 501. a flow rate changer; 502. a threaded pipe; 503. a threaded rod; 504. turning the hand; 505. a scale groove; 506. a pointer; 507. a top rod; 508. a floating ball; 509. a hollow limiting seat; 6. a second test tube; 7. a pool; 701. a heater; 702. a fixing plate; 703. a thermometer.

Detailed Description

The following, with reference to the drawings and the detailed description, further description of the present invention is made:

referring to fig. 1-5, a titration test device for chemical analysis according to an embodiment of the present invention comprises a device main body 1, a base 2 is disposed at a bottom end of the device main body 1, a water tank 7 is disposed at one side of a top end of the base 2, a heater 701 is disposed at one side of an interior of the water tank 7, a thermometer 703 is disposed at another side of the interior of the water tank 7, a fixing frame 3 is mounted at a top end of the base 2, a fixing base 301 is fixedly mounted at a bottom end of the fixing frame 3, electric telescopic rods 302 are mounted at four corners of a top end of the fixing base 301, a clamp hoop 4 is fixedly mounted at a top end of the electric telescopic rods 302, a clamp ring 401 is penetratingly mounted on the clamp hoop 4, a first test tube 5 is disposed at one side of the fixing frame 3, a flow changer 501 is mounted at a bottom end of the first test tube, one end fixed mounting of threaded rod 503 has commentaries on classics hand 504, be equipped with scale groove 505 and pointer 506 on changeing hand 504 respectively, threaded rod 503's other end sliding connection installs ejector pin 507, the top of ejector pin 507 is equipped with the spacing seat 509 of cavity, the spacing seat 509 of cavity with the top fixed connection of flow changer 501.

Through the above scheme of the present invention, the top end of the flow rate changer 501 is installed with the floating ball 508, and the top end of the top rod 507 is butted with the bottom end of the floating ball 508; a second test tube 6 is arranged on the other side of the fixed frame 3, test tube fixing clamps 303 are fixedly mounted on both sides of the fixed frame 3, and the first test tube 5 and the second test tube 6 are fixedly connected with the test tube fixing clamps 303; a connecting fixing rod 404 is fixedly installed on one side of the collar 401, a reagent bottle fixing frame 402 is fixedly installed at one end of the connecting fixing rod 404, and a reagent bottle 403 is installed on the reagent bottle fixing frame 402; the bottom end of the fixed seat 301 is fixedly connected with the top end of the base 2; the device main body 1 is provided with an external power supply and a control switch, the external power supply is electrically connected with the control switch, and the control switch is electrically connected with the electric telescopic rod 302 and the heater 701.

In specific application, firstly, the reagent bottle 403 is placed on the reagent bottle fixing frame 402, then the reagent in the first test tube 5 is dripped into the reagent bottle 403, in the process of reagent dripping, the threaded rod 503 can be rotated by the rotating hand 504, the change of the position of the ejector rod 507 is further changed along with the change of the position of the threaded rod 503, so that the gap between the floating ball 508 and the reagent outlet can be changed by the ejector rod 507, the dripping amount of the reagent per unit time can be clearly known and controlled through the scale on the scale groove 505 corresponding to the pointer 506 on the rotating hand 504, because the clamp ring 401 is sleeved on the clamp ring 4, the reagent bottle fixing frame 402 can rotate around the clamp ring 4, after the reagent in the first test tube 5 is dripped, the reagent bottle 403 can be rotated to the bottom of the second test tube 6, the working principle of the second test tube 6 is the same as that in the first test tube 5, when the chemical reaction needs to absorb the heat from the outside, through the flexible effect of electric telescopic handle 302, move reagent bottle 403 to the pond 7 in, heat the inside liquid in pond through heater 701 to come to heat reagent bottle 403, thermometer 703 can be convenient for the experimenter survey the temperature of liquid in the pond 7.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a chemical analysis titration test device, which is characterized in that, includes device main part (1), the bottom of device main part (1) is equipped with base (2), top one side of base (2) is equipped with pond (7), inside one side in pond (7) is equipped with heater (701), and thermometer (703) are installed to its inside opposite side, mount (3) are installed to the top of base (2), the bottom fixed mounting of mount (3) has fixing base (301), electric telescopic handle (302) are all installed to the top four corners department of fixing base (301), the top fixed mounting of electric telescopic handle (302) has clamp (4), clamp (4) through connection installs rand (401), one side of fixing base (3) is equipped with first test tube (5), flow changer (501) is installed to the bottom of first test tube (5), the inside fixed mounting of flow changer (501) has screwed pipe (502), screwed pipe (502) internal threaded connection installs threaded rod (503), the one end fixed mounting of threaded rod (503) has commentaries on classics hand (504), be equipped with scale groove (505) and pointer (506) on commentaries on classics hand (504) respectively, ejector pin (507) are installed to the other end sliding connection of threaded rod (503), the top of ejector pin (507) is equipped with spacing seat of cavity (509), spacing seat of cavity (509) with the top fixed connection of flow changer (501).

2. The titration test device according to claim 1, wherein a floating ball (508) is installed on the top end of the flow rate changer (501), and the top end of the top rod (507) is abutted to the bottom end of the floating ball (508).

3. A titration test device for chemical analysis according to claim 1, wherein a second test tube (6) is disposed on the other side of the fixing frame (3), a test tube fixing clip (303) is fixedly mounted on both sides of the fixing frame (3), and the first test tube (5) and the second test tube (6) are fixedly connected to the test tube fixing clip (303).

4. The titration test device for chemical analysis according to claim 1, wherein a connection fixing rod (404) is fixedly installed on one side of the collar (401), a reagent bottle fixing frame (402) is fixedly installed on one end of the connection fixing rod (404), and a reagent bottle (403) is installed on the reagent bottle fixing frame (402).

5. A titration test device according to claim 1, wherein the bottom end of the holder (301) is fixedly connected to the top end of the base (2).

6. The chemical analysis titration test device according to claim 1, wherein an external power source and a control switch are arranged on the device main body (1), the external power source is electrically connected with the control switch, and the control switch is electrically connected with the electric telescopic rod (302) and the heater (701).