CN214583485U - Volumetric flask constant volume auxiliary device - Google Patents
Volumetric flask constant volume auxiliary device Download PDFInfo
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- CN214583485U CN214583485U CN202120793517.6U CN202120793517U CN214583485U CN 214583485 U CN214583485 U CN 214583485U CN 202120793517 U CN202120793517 U CN 202120793517U CN 214583485 U CN214583485 U CN 214583485U
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- volumetric flask
- connecting rod
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- constant volume
- positioning rod
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Abstract
The utility model discloses a volumetric flask constant volume auxiliary device belongs to the capacity measuring device field. The measuring flask comprises a measuring flask, a data display and an information collector; a fixed volume line is arranged on the volumetric flask; the data display is positioned outside the volumetric flask and is provided with a display screen; a positioning rod is arranged on the left side of the information collector, a groove is formed in the right side wall of the positioning rod, a connecting rod is connected in the groove in a sliding mode, and the connecting rod is detachably connected with the positioning rod; the right side of the bottom end of the connecting rod is fixedly connected with an inductor which is attached to the inner side wall of the volumetric flask; the positioning rod is hung at the edge of the bottle mouth of the volumetric flask through the inductor and the connecting rod; distance sensors are installed on the left side wall and the right side wall of the lower end of the sensor. It can solve traditional volumetric flask and need observe the concave liquid level and read the capacity scale when titrating, and the technical problem that the constant volume precision is low.
Description
Technical Field
The utility model relates to a capacity measuring device field, more specifically say, relate to a volumetric flask constant volume device.
Background
Volumetric flasks are precision instruments used to prepare solutions of a certain quantity and concentration of substance;
the volumetric flask is marked with: temperature, volume, constant volume line. The volumetric flask has a marked line on the neck, which means that the volume of the solution is exactly equal to the volume marked on the flask when the liquid concave surface is tangent to the marked line on the neck of the volumetric flask at the indicated temperature.
When a volumetric flask is used for preparing a solution with accurate concentration, a key step is constant volume operation; the constant volume is the process that when the volumetric flask is used for preparing the solution with accurate concentration, water is added to be 1 to 2 centimeters away from the scale mark, the water is absorbed and injected into the volumetric flask by a rubber head dropper, and the sight line is horizontal to the lowest position of the concave liquid level so as to lead the liquid to reach the scale mark.
In the constant volume operation, it is necessary to observe the volume scale corresponding to the concave liquid surface while titrating the liquid into the volumetric flask. When the liquid drops are continuously dripped, if the observation of the concave liquid level is not timely, the constant volume is easy to be excessive; once the constant volume is over, solution needs to be reconfigured, and in addition, reading is observed through human eyes, and a large reading error exists, and the constant volume precision is influenced.
For example, the CN201821355364.1 constant volume device and the volumetric flask are connected to the tube sleeve by the lead frame, and the first lead and the second lead are both fixedly connected to the lead frame and extend along the lead frame; the first lead and the second lead are insulated with the lead frame, the first lead is connected with the negative pole of the power supply, the positive pole of the power supply is connected with the alarm, the alarm is connected with the second lead, the first lead and the second lead are extended into the volumetric flask body through the lead frame, when the liquid level in the volumetric flask body rises to be contacted with the first lead and the second lead and the first lead and the second lead are conducted, the power supply, the alarm, the first lead and the second lead form a passage, and then make the alarm produce alarm signal to when the reagent liquid level reached a take the altitude, the alarm produced alarm signal automatically, and suggestion operating personnel stopped titrating, need observe the problem of liquid level height when titrating in having solved traditional constant volume operation, be favorable to realizing efficient constant volume operation, and compare and observe in the people's eye and more can ensure the constant volume precision. The above patent is helpful to constant volume, and once the constant volume device has a certain deficiency, the alarm only generates an alarm signal when the liquid level of the reagent reaches a certain height, and prompts the operator to stop titration, and the operator stops titration from hearing the alarm, and has a certain time difference, which causes low constant volume precision.
SUMMERY OF THE UTILITY MODEL
1. Technical problem to be solved
To the problem that exists among the prior art, the utility model aims to provide a volumetric flask constant volume auxiliary device, it can solve traditional volumetric flask and need observe the concave liquid level and read the capacity scale when titrating, and the technical problem that the constant volume precision is low.
2. Technical scheme
In order to solve the above problems, the utility model adopts the following technical proposal.
A volumetric flask constant volume auxiliary device comprises a volumetric flask, a data display and an information collector; a fixed volume line is arranged on the volumetric flask; the data display is positioned outside the volumetric flask and is provided with a display screen; a positioning rod is arranged on the left side of the information collector, a groove is formed in the right side wall of the positioning rod, a connecting rod is connected in the groove in a sliding mode, and the connecting rod is detachably connected with the positioning rod; the right side of the bottom end of the connecting rod is fixedly connected with an inductor which is attached to the inner side wall of the volumetric flask; the positioning rod is hung at the edge of the bottle mouth of the volumetric flask through the inductor and the connecting rod; distance sensors are installed on the left side wall and the right side wall of the lower end of the sensor.
Preferably, connecting rod left side inner wall fixed mounting has first magnet, and the second magnet is installed to recess left side inner wall on the locating lever, and the connecting rod carries out swing joint through first magnet absorption second magnet with the locating lever.
Preferably, an information collector and a transmitter are arranged in the sensor; the information collector is used for collecting the information measured by the distance sensor; the transmitter is used for transmitting the information in the information collector to the data display.
Preferably, the data display comprises a receiver for receiving the information sent by the sender and a processor for processing the received information, and the processor processes the received information and sends the processed information to the display screen.
3. Advantageous effects
Compared with the prior art, the utility model has the advantages of:
(1) the utility model discloses be provided with the data display, the display screen is installed to the data display up end, show on the display screen that present liquid level distance is decided and is held the line and still need add how many milliliters constant volume liquid, still need add how much to titrate solution and liquid level and decide the distance of holding the line, during the constant volume, directly see the information that provides on the data display, need not look at the liquid level scale mark, the sight is not with the unsafe problem of constant volume precision that the liquid level concave line brought on same water flat line when avoiding the constant volume.
(2) The utility model discloses be provided with apart from the inductor, apart from the inductor be used for measuring the internal diameter of graduated flask bottleneck, measure its height apart from the volumetric flask liquid level and apart from the perpendicular appearance vertical height of locating lever bottom, the inductor can replace us to observe the distance of liquid level distance surely holding the line with eyes.
Drawings
FIG. 1 is a schematic structural view of the auxiliary device of the present invention in use;
fig. 2 is a schematic structural diagram of an information collector of the present invention;
FIG. 3 is a schematic structural view of the positioning rod and the connecting rod of the present invention;
fig. 4 is a side view of the inductor of the present invention;
fig. 5 is a top view of the data display of the present invention.
The reference numbers in the figures illustrate:
1 volumetric flask, 2 contain line, 3 data display, 4 inductors, 5 connecting rods, 6 apart from inductor, 7 recesses, 8 display screens, 9 locating levers, 10 information acquisition wares surely.
Detailed Description
The implementation mode is as follows: please refer to fig. 1-5, which illustrate a volumetric flask volume-fixing auxiliary device, comprising a volumetric flask 1, a data display 3 and an information collector 10. The volumetric flask 1 is provided with a fixed vessel line 2. The data display 3 is located volumetric flask 1 is external, and the data display 3 is installed in the suitable position department that makes things convenient for the staff to observe, installs display screen 8 on the data display 3 for show that present liquid level is from deciding appearance line 2 and still need add how many milliliters of constant volume liquid and still need add several titration solutions. The left side of the information collector 10 is provided with a positioning rod 9, the right side wall of the positioning rod 9 is provided with a groove 7, a connecting rod 5 is connected in the groove 7 in a sliding mode, and the connecting rod 5 is detachably connected with the positioning rod 9. The sensor 4 is fixedly connected to the right side of the bottom end of the connecting rod 5, and the sensor 4 is attached to the inner side wall of the volumetric flask 1. The locating rod 9 is hung at the edge of the bottle mouth of the volumetric flask 1 through the inductor 4 and the connecting rod 5. Distance sensors 6 are installed on the left side wall and the right side wall of the lower end of the sensor 4, and the distance sensors 6 are used for measuring the inner diameter of the bottleneck of the volumetric flask 1, measuring the height of the bottleneck of the volumetric flask 1 from the liquid level of the volumetric flask and measuring the vertical height of the bottleneck from the bottom end of the positioning rod 9.
Connecting rod 5 left side inner wall fixed mounting has first magnet, and the second magnet is installed to recess 7 left side inner wall on locating lever 9, and connecting rod 5 and locating lever 9 carry out swing joint through first magnet absorption second magnet.
The sensor 4 is provided with an information collector and a transmitter. The information collector is used for collecting the information measured by the distance sensor 6. The transmitter is used for transmitting the information in the information collector to the data display 3.
When in use, the positioning rod 9 is moved up and down to align the bottom end of the positioning rod 9 with the containing line 2 on the volumetric flask 1, the positioning rod 9 is fixed at the left end of the connecting rod 5 by adsorbing the first magnet at the left end of the connecting rod 5 by the second magnet in the groove 7 on the right side wall of the positioning rod 9, the distance sensors 6 arranged on the left side wall and the right side wall of the sensor 4 measure the vertical height from the bottom end of the positioning rod 9, the positioning rod 9 is hung at the edge of the bottle mouth of the volumetric flask 1 by the connecting rod 5 and the sensor 4, the distance sensors 6 arranged on the left side wall and the right side wall at the lower end of the sensor 4 attached to the inner side wall of the volumetric flask 1 measure the inner diameter of the bottle neck of the volumetric flask 1 and the height from the bottle 1 to the liquid level, the information measured by the distance sensors is collected by the information collector in the sensor 4, the transmitter in the sensor 4 transmits the information in the information collector to the data display 3, the receiver in the data display 3 receives the information sent by the sender in the sensor 4, the information processor in the data display 3 processes the information received by the receiver, the distance from the liquid surface to the fixed volume line 2 is calculated according to the inner diameter of the bottleneck of the volumetric flask 1 measured by the distance sensor 6, the height from the liquid surface of the volumetric flask 1 measured by the distance sensor and the vertical height from the bottom end of the positioning rod 9, and then how many milliliters of fixed volume liquid need to be added is obtained, and as one drop of the burette is 0.05 milliliter, the number of titrations needed to be added can be calculated. The data on the display screen can be dynamically adjusted in real time according to the data measured by the distance sensor 6 by the processor, the processed data information is sent to the display screen 8 to be watched by an operator, the operator performs constant volume according to the information displayed on the display screen 8, and titration is finished according to the displayed titration prompt.
Claims (4)
1. The utility model provides a volumetric flask constant volume auxiliary device which characterized in that: comprises a volumetric flask (1), a data display (3) and an information collector (10); a fixed volume line (2) is arranged on the volumetric flask (1); the data display (3) is positioned outside the volumetric flask (1), and a display screen (8) is arranged on the data display (3); a positioning rod (9) is arranged on the left side of the information collector (10), a groove (7) is formed in the right side wall of the positioning rod (9), a connecting rod (5) is connected in the groove (7) in a sliding mode, and the connecting rod (5) is detachably connected with the positioning rod (9); the right side of the bottom end of the connecting rod (5) is fixedly connected with an inductor (4), and the inductor (4) is attached to the inner side wall of the volumetric flask (1); the positioning rod (9) is hung at the edge of the bottle opening of the volumetric flask (1) through the inductor (4) and the connecting rod (5); distance sensors (6) are arranged on the left side wall and the right side wall of the lower end of the sensor (4).
2. A volumetric flask constant volume auxiliary device according to claim 1, characterized in that: a first magnet is fixedly mounted on the inner wall of the left side of the connecting rod (5), a second magnet is mounted on the inner wall of the left side of the groove (7) in the positioning rod (9), and the connecting rod (5) and the positioning rod (9) are movably connected through the first magnet to adsorb the second magnet.
3. A volumetric flask constant volume auxiliary device according to claim 1, characterized in that: an information collector and a transmitter are arranged in the inductor (4); the information collector is used for collecting the information measured by the distance sensor (6); the transmitter transmits the information in the information collector to the data display (3).
4. A volumetric flask constant volume auxiliary device according to claim 3, characterized in that: the data display (3) comprises a receiver for receiving the information sent by the sender and an information processor for processing the received information, and the processor processes the received information and then sends the processed information to the display screen (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120793517.6U CN214583485U (en) | 2021-04-16 | 2021-04-16 | Volumetric flask constant volume auxiliary device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120793517.6U CN214583485U (en) | 2021-04-16 | 2021-04-16 | Volumetric flask constant volume auxiliary device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214583485U true CN214583485U (en) | 2021-11-02 |
Family
ID=78360424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120793517.6U Active CN214583485U (en) | 2021-04-16 | 2021-04-16 | Volumetric flask constant volume auxiliary device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214583485U (en) |
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2021
- 2021-04-16 CN CN202120793517.6U patent/CN214583485U/en active Active
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