PH meter

Abstract

The utility model relates to the field of PH value measurement, and discloses a PH meter which comprises a main machine, a connecting wire is arranged on the main machine, an electrode tip is arranged at one end, opposite to the main machine, of the connecting wire, the PH meter further comprises a liquid storage structure, the liquid storage structure comprises a liquid storage cylinder fixedly sleeved on the periphery of the electrode tip, a liquid storage cavity matched with the electrode tip is arranged in the liquid storage cylinder, and the liquid storage cavity is communicated with the liquid storage cylinder. A liquid storage cavity is formed in the liquid storage barrel, filter holes are formed in the lower end of the liquid storage cavity in the liquid storage barrel, a connecting pipe communicated with the liquid storage cavity is arranged on one side of the liquid storage barrel, a drawing pipe is arranged at one end of the connecting pipe, a drawing cavity is formed in the drawing pipe, a piston is arranged in the drawing cavity, and a connecting rod penetrating through one side of the drawing pipe is arranged at one end of the piston. Compared with the prior art, the utility model has the advantages that the surveying efficiency can be improved, and the fatigue degree of detection personnel can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of pH value measurement technology, specifically to a pH meter. Background Technology

[0002] A pH meter, or acid-base meter, is used to measure pH values. It uses a pH indicating electrode to determine the pH value of a solution using a potentiometric method. Portable pH meters are convenient to carry, allowing testing personnel to take them outdoors to measure the pH values ​​of rivers and lakes. A portable pH meter consists of a main unit and an electrode head. When using a portable pH meter, the testing personnel need to squat next to the water body and hold the electrode head, immersing it in the water for a certain period of time before the main unit can detect the pH value.

[0003] This method of outdoor testing by squatting beside a body of water requires the testing personnel to extend their hands and immerse the electrode head in the water for a certain period of time. Only after the electrode head has been in contact with the water for a certain period of time can the main unit detect the pH value. Since rivers and lakes are large in area, the testing personnel need to carry a portable pH meter to change different locations and conduct multiple tests. Moreover, each time the electrode head needs to be inserted into the water and wait for a certain period of time, which will reduce the testing efficiency of the testing personnel and increase their fatigue. Utility Model Content

[0004] (I) Technical problems to be solved

[0005] The technical problem this invention aims to solve is that current testing methods for measuring the pH value of rivers and lakes reduce survey efficiency and increase the workload of testing personnel when testing multiple locations.

[0006] (II) Technical Solution

[0007] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: a pH meter, including a main unit, a connecting line on the main unit, an electrode head at one end of the connecting line relative to the main unit, and a liquid storage structure, the liquid storage structure including a liquid storage cylinder sleeved around the electrode head, a liquid storage cavity that cooperates with the electrode head inside the liquid storage cylinder, a filter hole at the lower end of the liquid storage cavity inside the liquid storage cylinder, a connecting pipe communicating with the liquid storage cavity on one side of the liquid storage cylinder, a pull tube at one end of the connecting pipe, a pull cavity inside the pull tube, a piston inside the pull cavity, and a connecting rod penetrating one side of the pull tube at one end of the piston.

[0008] As an improvement, the connecting rod is provided with a pull handle at one end opposite the piston.

[0009] As an improvement, a rubber sleeve is fitted onto the pull-out handle.

[0010] As an improvement, the top of the liquid storage cylinder is threadedly connected to the electrode head.

[0011] As an improvement, the liquid storage tank is provided with a liquid level window.

[0012] As an improvement, the main unit is attached with opposing anti-slip pads.

[0013] As an improvement, the surface of the connecting wire is fitted with a waterproof soft sleeve.

[0014] (III) Beneficial Effects

[0015] The advantages of this invention compared to existing technologies are as follows: the liquid storage structure allows the collected samples to be temporarily stored in the liquid storage cylinder, immersing the electrode head in the sample. After a period of time, the sample is discharged after the host computer completes the detection. This avoids the need for testing personnel to repeatedly squat and wait by rivers and lakes, reducing their fatigue. Furthermore, the host computer can complete the pH value detection before the testing personnel move to the next testing point, thus improving the efficiency of the survey. Attached Figure Description

[0016] Figure 1 This utility model relates to a three-dimensional pH meter. Figure 1 .

[0017] Figure 2 This utility model relates to a three-dimensional pH meter. Figure 2 .

[0018] Figure 3 This is a schematic diagram of the liquid storage structure of a pH meter according to this utility model.

[0019] As shown in the figure: 1. Main unit; 2. Connecting wire; 3. Electrode head; 4. Liquid storage cylinder; 5. Liquid storage chamber; 6. Filter hole; 7. Connecting tube; 8. Pull-out tube; 9. Pull-out chamber; 10. Piston; 11. Connecting rod; 12. Pull-out handle. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0021] like Figure 1 , Figure 2 and Figure 3As shown, a pH meter includes a main unit 1 with anti-slip pads adhered to it for easy handling. The main unit 1 has a connecting wire 2 with a waterproof sleeve covering its surface to improve its waterproof performance. An electrode head 3 is located at one end of the connecting wire 2 opposite to the main unit 1. The meter also includes a liquid storage structure, comprising a liquid storage cylinder 4 fitted around the electrode head 3. The top of the liquid storage cylinder 4 is threaded to the electrode head 3, allowing it to be removed for cleaning. The liquid storage cylinder 4 contains a liquid storage chamber 5 that mates with the electrode head 3. A liquid level window is provided on the liquid storage cylinder 4 for easy observation of the sample liquid level in the liquid storage chamber 5. A filter hole 6 is located at the lower end of the liquid storage chamber 5 inside the liquid storage cylinder 4.

[0022] With the above structure, the sample temporarily stored in the liquid storage chamber 5 can be used for testing by the electrode head 3, avoiding the need for the testing personnel to squat and wait. The specific structure for storing and discharging samples in the liquid storage chamber 5 is as follows:

[0023] like Figure 1 , Figure 2 and Figure 3 As shown, a connecting pipe 7 communicating with the liquid storage chamber 5 is provided on one side of the liquid storage cylinder 4. A pull tube 8 is provided at one end of the connecting pipe 7. A pull chamber 9 is provided inside the pull tube 8. A piston 10 is provided inside the pull chamber 9. A connecting rod 11 penetrating one side of the pull tube 8 is provided at one end of the piston 10. A pull handle 12 is provided at one end of the connecting rod 11 opposite to the piston 10. A rubber sleeve is fitted on the pull handle 12 to facilitate pulling the connecting rod 11.

[0024] With the above structure, pulling and pushing the pull handle 12 can store and discharge samples in the liquid storage chamber 5 using the piston 10.

[0025] In practical implementation of this invention, when it is necessary to conduct pH value surveys at multiple points in rivers and lakes, the testing personnel carry the main unit, connecting cable and electrode head, walk to the testing point, insert the liquid storage cylinder below the liquid surface, and then pull the pull handle in the direction relative to the liquid storage cylinder. The piston moves in the pull chamber, which can draw the liquid sample into the liquid storage chamber. The testing personnel can then leave and walk to the next testing point.

[0026] During the walk, the sample stored in the liquid storage chamber is used for electrode head detection. The main unit can detect the pH value. Once the pH value detection is completed during the walk, the testing personnel can push the piston to discharge the sample. Then, after walking to the next testing point, the above operation is repeated. This can avoid the testing personnel squatting by the river or lake to wait for the test results, which can improve the survey efficiency and reduce the fatigue of the testing personnel.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

[0029] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A pH meter, comprising a main unit (1), wherein the main unit (1) is provided with a connecting wire (2), and the connecting wire (2) is provided with an electrode head (3) at one end relative to the main unit (1), characterized in that: It also includes a liquid storage structure, which includes a liquid storage cylinder (4) sleeved around the electrode head (3), and the liquid storage cylinder (4) is provided with a liquid storage cavity (5) that cooperates with the electrode head (3). The liquid storage cylinder (4) is provided with a filter hole (6) at the lower end of the liquid storage cavity (5). The liquid storage cylinder (4) has a connecting pipe (7) that communicates with the liquid storage chamber (5) on one side. One end of the connecting pipe (7) has a pull tube (8). The pull tube (8) has a pull cavity (9). The pull cavity (9) has a piston (10). One end of the piston (10) has a connecting rod (11) that passes through one side of the pull tube (8).

2. A pH meter according to claim 1, characterized in that: The connecting rod (11) has a pull handle (12) at one end relative to the piston (10).

3. A pH meter according to claim 2, characterized in that: A rubber sleeve is fitted onto the pull handle (12).

4. A pH meter according to claim 1, characterized in that: The top of the liquid storage cylinder (4) is threadedly connected to the electrode head (3).

5. A pH meter according to claim 1, characterized in that: The liquid storage cylinder (4) is equipped with a liquid level window.

6. A pH meter according to claim 1, characterized in that: Anti-slip pads are attached to the host (1) in opposite directions.

7. A pH meter according to claim 1, characterized in that: The surface of the connecting wire (2) is covered with a waterproof soft sleeve.

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