Magnetic stirring device for measuring water sample by using PH (Potential of Hydrogen) meter
The water sample flow is driven by the magnetic stirring device and the probe is protected, which solves the problems of time-consuming and labor-intensive testing of existing pH value test methods and inaccurate measurements, and achieves efficient and accurate pH value detection.
Patent Information
- Application Number
- CN202420225199.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-30
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-01-30
AI Technical Summary
The existing pH value testing methods require manual rotation of the beaker, which is time-consuming and labor-intensive, has low detection efficiency, and is difficult to ensure measurement accuracy.
A device including a magnetic stirrer bottle, a magnetic stirrer, a PH measurement probe and a temperature test probe is designed. The magnetic stirrer is driven to rotate the water sample through a magnetic stirrer to ensure the flow of the water sample and protect the probe through a liftable bracket and a grille. , avoid contact with the stirrer.
It realizes water sample stirring with simple operation, time-saving and labor-saving, improves the stability and accuracy of pH measurement, and protects the probe and avoids damage.
Smart Images
Figure CN222219371U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a magnetic stirring device used for a pH meter to measure water samples. Background Art
[0002] At present, when testing the pH value of water samples, in order to ensure the accuracy of the pH test, the water sample is preferably in a flowing state to ensure that the tested pH value is more stable. The existing testing method is to insert the pH measuring electrode of the pH tester into the beaker for testing while rotating the beaker to rotate the water sample inside the beaker to ensure the accuracy of the test. This method is time-consuming and labor-intensive, and has low detection efficiency. Utility Model Content
[0003] The utility model improves the above-mentioned problem, that is, the technical problem to be solved by the utility model is to provide a magnetic stirring device used when a pH meter measures water samples, which is easy to use and highly efficient.
[0004] The utility model is constructed as follows: it comprises a magnetic stirring bottle and a magnetic stirrer arranged below the magnetic stirring bottle; a magnetic stirring bar driven to rotate by the magnetic stirrer is arranged on the inner bottom surface of the magnetic stirring bottle; and a pH measuring probe extending to the inside of the magnetic stirring bottle is arranged above the magnetic stirring bottle.
[0005] Furthermore, a grid is provided at the lower part of the magnetic stirring bottle.
[0006] Furthermore, a support rod is provided below the grille.
[0007] Furthermore, a temperature testing probe is provided on the side of the pH measuring probe and also extends to the interior of the magnetic stirring bottle.
[0008] Furthermore, the grille has grille holes.
[0009] Furthermore, a liftable bracket is arranged beside the magnetic stirring bottle, and a mounting plate which can be moved up and down is arranged at the outer end of the liftable bracket, and the pH measuring probe and the temperature testing probe are installed on the mounting plate.
[0010] Compared with the prior art, the utility model has the following beneficial effects: the utility model has a simple structure, a reasonable design and is easy to use. By placing a water sample in a magnetic stirring bottle and turning on the start / stop switch of the magnetic stirrer, the magnetic stirrer drives the magnetic stirrer to rotate at the bottom of the magnetic stirring bottle, so that the water sample is in a flowing state; then the pH measuring probe and the temperature testing probe are extended downward into the magnetic stirring bottle to detect the pH value of the water sample in the magnetic stirring bottle. The flowing water sample is conducive to a more stable and accurate measured pH value, and the operation is time-saving, labor-saving, convenient and quick. In addition, when the pH measuring probe and the temperature testing probe are extended into the magnetic stirring bottle, the grid is provided to prevent the pH measuring probe and the temperature testing probe from extending too far downward, thereby preventing the pH measuring probe from contacting the rotating magnetic stirrer and causing damage to the pH measuring probe. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 This is a schematic diagram of the structure of an embodiment of the utility model;
[0012] Figure 2 Schematic diagram of the magnetic stirrer, magnetic stirring bottle, pH measuring probe and grid structure of the utility model embodiment Figure 1 ;
[0013] Figure 3 Schematic diagram of the magnetic stirrer, magnetic stirring bottle, pH measuring probe and grid structure of the utility model embodiment Figure 2 ;
[0014] Figure 4 This is a top view of the grille of an embodiment of the utility model. DETAILED DESCRIPTION
[0015] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.
[0016] Example: Figure 1-4 As shown, a magnetic stirring device for measuring water samples with a pH meter is provided, comprising a magnetic stirring bottle 1 and a magnetic stirrer 2 arranged below the magnetic stirring bottle, a magnetic stirring bar 3 driven to rotate by the magnetic stirrer is arranged on the bottom surface of the magnetic stirring bottle, and a pH measuring probe 4 extending to the inside of the magnetic stirring bottle is arranged above the magnetic stirring bottle.
[0017] The side of the pH measuring probe is provided with a temperature testing probe 5 which also extends to the inside of the magnetic stirring bottle.
[0018] The magnetic stirrer is provided with a start-stop switch 6 on the outside.
[0019] During operation, a water sample is placed in the magnetic stirring bottle, and the start / stop switch of the magnetic stirrer is turned on. The magnetic stirrer drives the magnetic stirrer to rotate at the bottom of the magnetic stirring bottle, so that the water sample is in a flowing state; then the pH measuring probe and the temperature testing probe are extended downward into the magnetic stirring bottle to detect the pH value of the water sample in the magnetic stirring bottle. The flowing water sample is conducive to a more stable and accurate measured pH value, and the operation is time-saving, labor-saving, convenient and fast. In addition, when the pH measuring probe and the temperature testing probe are extended into the magnetic stirring bottle, a grille is provided to prevent the pH measuring probe and the temperature testing probe from extending too far downward, and prevent the pH measuring probe from contacting the rotating magnetic stirrer to cause damage to the pH measuring probe.
[0020] In the embodiment of the utility model, a grille 7 is provided at the lower part of the magnetic stirring bottle; the grille serves to prevent the pH measuring probe from continuing to move downward. The grille can effectively prevent the pH measuring probe from accidentally contacting the magnetic stirring bar when the pH measuring probe is extended downward into the magnetic stirring bottle, thereby causing damage to the pH measuring probe.
[0021] A support rod 72 is provided below the above-mentioned grille; the grille has grille holes 71, and the width of the grille holes is smaller than the width of the pH measuring probe.
[0022] A cross-shaped baffle is provided on the grille.
[0023] In the embodiment of the utility model, a liftable bracket 8 is arranged beside the magnetic stirring bottle, and a mounting plate 81 which can be moved up and down is arranged at the outer end of the liftable bracket, and the pH measuring probe and the temperature testing probe are installed on the mounting plate.
[0024] The above-mentioned liftable bracket includes a base 82, a vertical rod 84, and a horizontal rod 83. The end of the horizontal rod is connected to the mounting plate, the lower end of the vertical rod is rotatably matched with the base, the upper end of the vertical rod is rotatably matched with one end of the horizontal rod, and the other end of the horizontal rod is rotatably matched with the mounting plate; the upper and lower positions of the mounting plate, the pH measuring probe and the temperature testing probe can be adjusted by swinging the horizontal rod up and down and the vertical rod left and right.
[0025] In another embodiment, the liftable bracket may include a base, a horizontal bar, and a vertical bar. One end of the horizontal bar and the vertical bar slide up and down together via a slider. The other end of the horizontal bar is connected to the mounting plate. The vertical position of the mounting plate, the pH measuring probe, and the temperature testing probe can be adjusted by moving the horizontal bar up and down.
[0026] In the embodiment of the utility model, a PH tester 9 is further provided outside the liftable bracket. The PH tester is a prior art. The PH tester is electrically connected to a PH measuring probe and a temperature testing probe to display the PH value of the water sample.
[0027] Example 2: On the basis of Example 1, in the embodiment of the utility model, a temperature test probe is provided on the side of the pH measuring probe and also extends to the inside of the magnetic stirring bottle; since the measured pH values of water samples are different at different temperatures, the temperature test probe can detect the temperature of the water sample, and can detect and compensate for the water sample. The temperature test probe transmits the temperature of the water sample to the pH testing machine for feedback, thereby correcting the pH coefficient according to the temperature of different water samples, which is beneficial for the pH measuring probe to test the pH value of the water sample.
[0028] Unless otherwise stated, any technical solution disclosed in the above utility model, if it discloses a numerical range, then the disclosed numerical range is a preferred numerical range. Any technician in the field should understand that the preferred numerical range is only a numerical value with a more obvious technical effect or representative value among many feasible numerical values. Since there are too many numerical values to be exhaustive, the utility model discloses only some numerical values to illustrate the technical solution of the utility model, and the numerical values listed above should not constitute a limitation on the scope of protection of the utility model.
[0029] If the words "first", "second" and so on are used in this article to limit components, those skilled in the art should know that the use of "first" and "second" is only for the convenience of description to distinguish the components. Unless otherwise stated, the above words have no special meaning.
[0030] At the same time, if the above-mentioned utility model discloses or involves components or structural parts that are fixedly connected to each other, then, unless otherwise stated, the fixed connection can be understood as: a detachable fixed connection (for example, connection using bolts or screws), and can also be understood as: a non-detachable fixed connection (for example, riveting, welding). Of course, the mutual fixed connection can also be replaced by an integrated structure (for example, manufactured by one-piece molding using a casting process) (except when it is obviously impossible to use an one-piece molding process).
[0031] In addition, unless otherwise stated, the terms used to indicate positional relationships or shapes in any of the technical solutions disclosed in the above utility model include states or shapes that are approximate, similar or close thereto.
[0032] Any component provided by the utility model can be assembled from multiple separate components, or can be a separate component manufactured by an integrated molding process.
[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the utility model can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the utility model, which should be included in the scope of the technical solution for protection of the utility model.
Claims
1. A magnetic stirring device for measuring water samples with a pH meter, characterized in that: It comprises a magnetic stirring bottle and a magnetic stirrer arranged below the magnetic stirring bottle, wherein a magnetic stirring bar driven to rotate by the magnetic stirrer is arranged on the inner bottom surface of the magnetic stirring bottle, and a pH measuring probe extending to the inside of the magnetic stirring bottle is arranged above the magnetic stirring bottle; A grid is arranged at the lower part of the magnetic stirring bottle.
2. The magnetic stirring device for measuring water samples with a pH meter according to claim 1, characterized in that: A support rod is arranged below the grille.
3. The magnetic stirring device for measuring water samples with a pH meter according to claim 1, characterized in that: The side of the pH measuring probe is provided with a temperature testing probe which also extends to the inside of the magnetic stirring bottle.
4. The magnetic stirring device for measuring water samples with a pH meter according to claim 2, characterized in that: The grille is provided with grille holes.
5. The magnetic stirring device for measuring water samples with a pH meter according to claim 1, characterized in that: A liftable bracket is arranged beside the magnetic stirring bottle, and a mounting plate which can be moved up and down is arranged at the outer end of the liftable bracket, and the pH measuring probe and the temperature testing probe are mounted on the mounting plate.