Floating type pH electrode

Abstract

The utility model discloses a floating type pH electrode, relates to pH electrode field, including pH electrode, said pH electrode includes holding end and test end, the outer wall of holding end is fixedly connected with the fixed box, the both sides of fixed box are in sliding connection with the clamping plate, the outside of fixed box is provided with the card box, the card box is provided with the card box, the card box is provided with the card box, the card box is provided with the card box. And a plurality of clamping grooves are formed in two symmetrical surfaces of the clamping box. According to the pH electrode testing device, the fixing box is arranged, the clamping plates are arranged at the two ends of the fixing box, the clamping box is fixed to the top face of the floating plate, the clamping grooves are formed in the symmetrical faces of the clamping box, and the clamping plates are connected with the clamping grooves, so that the height of the fixing box can be adjusted, and then the telescopic length of the pH electrode testing end is adjusted; the length of the testing end can be adjusted, the accuracy of the testing result is achieved, other parts of the pH motor are protected through the fixing box, and the situation that the testing result is affected due to the fact that the testing liquid pollutes the other parts is prevented.

Description

Technical Field

[0001] The utility model relates to the field of pH electrodes, in particular to a floating pH electrode. Background Art

[0002] The pH electrode, also known as the pH probe or pH sensor, is the part of the pH meter that contacts the substance being measured. It is a device that characterizes the pH value by measuring the electrode potential. There are usually two methods to measure the pH value in an aqueous solution: colorimetry (pH test paper, cuvette) and potentiometric method. Among them, only the potentiometric method can achieve continuous online measurement and process monitoring and obtain accurate and repeatable pH values. The core theory of pH electrode measurement is the Nernst equation. At the same time, according to the solution being tested, the test end needs to be extended and retracted to avoid exposing the test end to the outside, which would result in inaccurate testing.

[0003] After searching, the applicant found that a Chinese patent disclosed a "floating pH electrode" with a publication (announcement) number of "CN202757909U". The patent mainly provides a float, in which the pH electrode is fixed and the pH electrode probe extends downward from the bottom of the float, and a vertical guide device is provided. The float can be displaced in the vertical direction along the guide device. When the liquid level drops, the float will bring the pH electrode down with the liquid level to ensure that the pH electrode probe is consistently immersed in the water, avoiding the pH electrode from being completely exposed to the air, so it is not easy to be damaged, and the service life of the pH electrode is extended;

[0004] The device in the above patent can float the pH electrode to a certain extent, but the device in the above patent can only use the float to float the electrode up and down, and cannot locate the test end of the pH electrode, and thus cannot adjust the test end for solutions of different depths. Some test solutions require the test end to go deep into the depth to obtain accurate test results, and thus the above patent reduces the flexibility of the device. Utility Model Content

[0005] The purpose of the utility model is to provide a floating pH electrode to solve the problem that the device in the above patent proposed in the above background technology can float the pH electrode to a certain extent, but the device in the above patent can only float up and down with the electrode by using a float, and cannot position the test end of the pH electrode, and thus cannot adjust the test end for solutions of different depths. Some test solutions require the test end to penetrate deeply to obtain accurate test results, and thus the above patent reduces the flexibility of the device.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a floating pH electrode, comprising a pH electrode, the pH electrode comprising a gripping end and a holding end, the outer wall of the gripping end is fixedly connected to a fixing box, both sides of the fixing box are slidably connected to a snap-in plate, a card box is provided on the outer side of the fixing box, and two symmetrical surfaces of the card box are provided with a plurality of card slots, and the size of the card slots matches the size of the snap-in plate.

[0007] Preferably, an N-shaped push plate is inserted into one side of the fixed box, and a pressing block is fixedly connected to one side of the N-shaped push plate.

[0008] Preferably, two symmetrical surfaces of the card box are provided with slide grooves, the size of the pressing block matches the slide grooves, and the pressing block slides in the slide grooves.

[0009] Preferably, a fixing block is fixedly connected to one side of the fixing box, the size of the fixing block matches the size of the slide groove on the other side, and the fixing block slides in the other slide groove.

[0010] Preferably, two fixing plates are fixedly connected inside the fixed box, and the two fixing plates are symmetrically placed. Second springs are fixedly connected to both sides of the two fixing plates, and one end of four second springs away from the fixing plates is fixedly connected to the opposite side of the two clamping plates.

[0011] Preferably, a group of triangular plates are fixedly connected to the inner wall of the N-shaped push plate, one side of two triangular plates are fixedly connected to a first spring, and one end of the two first springs away from the triangular plates are fixedly connected to the inner wall of the fixed box.

[0012] Preferably, one side of the two clamping plates is provided with a groove, and the sizes of the two grooves match the sizes of the corresponding triangular plates respectively.

[0013] Preferably, a floating plate is fixedly connected to the bottom surface of the card box, and two symmetrical receiving grooves are provided on the bottom surface of the floating plate. Airbag bags are placed inside the two receiving grooves, and a through hole is provided inside the floating plate, and the size of the through hole is larger than the size of the gripping end.

[0014] The technical effects and advantages of the utility model are as follows: the utility model sets a fixed box, sets snap-in plates at both ends of the fixed box, fixes the card box on the top surface of the floating plate, sets a card slot on the symmetrical surface of the card box, and connects the snap-in plate with the card slot to adjust the height of the fixed box, thereby adjusting the telescopic length of the test end of the pH electrode. When dealing with different types of solutions, the length of the test end can be adjusted to achieve the accuracy of the test result. Secondly, the fixed box protects other parts of the pH motor to prevent the test liquid from contaminating other parts and affecting the test result. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0016] Figure 2 It is a partial three-dimensional structural schematic diagram of the utility model.

[0017] Figure 3 This is a schematic diagram of the pH electrode structure of the present utility model.

[0018] Figure 4 It is a schematic diagram of the floating plate structure of the utility model.

[0019] Figure 5 It is a schematic diagram of the top view structure of the fixed box of the utility model.

[0020] In the figure: 1, pH electrode; 2, holding end; 3, testing end; 4, fixing box; 5, card plate; 6, card box; 7, card slot; 8, slide slot; 9, pressing block; 10, N-shaped push plate; 11, fixing block; 12, floating plate; 13, first spring; 14, triangular plate; 15, groove; 16, fixing plate; 17, second spring; 18 supporting groove; 19, airbag bag; 20, through hole. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] The utility model provides Figure 1-5 A floating pH electrode shown in the figure comprises a pH electrode 1, wherein the pH electrode 1 comprises a gripping end 2 and a testing end 3, wherein a fixing box 4 is fixedly connected to the outer wall of the gripping end 2, wherein both sides of the fixing box 4 are slidably connected to a snap-in plate 5, and a snap-in box 6 is arranged on the outer side of the fixing box 4, wherein two symmetrical surfaces of the snap-in box 6 are provided with a plurality of snap-in slots 7, wherein the size of the snap-in slots 7 matches the size of the snap-in plate 5, so that when the snap-in plate 5 is placed in the snap-in slot 7, the fixing box 4 can be fixed, thereby fixing the pH electrode 1.

[0023] like Figure 1As shown, two symmetrical surfaces of the card box 6 are provided with slide grooves 8, the size of the pressing block 9 matches the size of the slide groove 8, and the pressing block 9 slides in the slide groove 8, one side of the fixed box 4 is fixedly connected with a fixed block 11, the size of the fixed block 11 matches the size of the slide groove 8 on the other side, and the fixed block 11 slides in the other slide groove 8, and the fixed block 11 can limit the fixed box 4 when the pressing block 9 is pressed.

[0024] like Figure 2 As shown, an N-shaped push plate 10 is inserted into one side of the fixed box 4 , and a pressing block 9 is fixedly connected to one side of the N-shaped push plate 10 .

[0025] like Figure 5 As shown, two fixing plates 16 are fixedly connected inside the fixing box 4, and the two fixing plates 16 are symmetrically placed. Second springs 17 are fixedly connected to both sides of the two fixing plates 16, and one end of the four second springs 17 away from the fixing plate 16 is fixedly connected to the opposite side of the two clamping plates 5.

[0026] like Figure 5 As shown, a group of triangular plates 14 are fixedly connected to the inner wall of the N-shaped push plate 10, and one side of the two triangular plates 14 is fixedly connected to the first spring 13. The ends of the two first springs 13 away from the triangular plates 14 are fixedly connected to the inner wall of the fixed box 4 through the first springs 13. When the pressing block 9 is released, the triangular plates 14 are reset, and then the triangular plates 14 are separated from the groove 15. At this time, due to the action of the second spring 17, the two clamping plates 5 move in opposite directions, and then clamp with the clamping slot 7, so as to fix the position of the pH electrode 1.

[0027] like Figure 5 As shown, one side of the two clamping plates 5 is provided with a groove 15 , and the sizes of the two grooves 15 match the sizes of the corresponding triangular plates 14 .

[0028] like Figure 2 and Figure 4 As shown, the bottom surface of the card box 6 is fixedly connected with a floating plate 12, and the bottom surface of the floating plate 12 is provided with two symmetrical receiving grooves 18, and airbag bags 19 are placed inside the two receiving grooves 18. A through hole 20 is provided inside the floating plate 12, and the size of the through hole 20 is larger than the size of the test end 3, which is convenient for the test end 3 to protrude from the floating plate 12, so that the test end 3 is in contact with the test solution.

[0029] Working principle of the utility model: When the utility model is in use, first adjust the length of the electrode test end 3 according to the test solution, first use two fingers of the user, one finger presses the pressing block 9 and the other finger presses the fixing block 11, and the fixing block 11 contacts the fixing box 4, then the N-shaped push plate 10 moves, and the movement of the N-shaped push plate 10 drives the two triangular plates 14 to move, and the movement of the two triangular plates 14 makes the triangular plates 14 move to the inside of the groove 15, and the two triangular plates 14 begin to squeeze the inner wall of the corresponding groove 15, and the two clamping plates 5 move relative to each other, so that the two clamping plates 5 are disengaged from the corresponding clamping groove 7, and the pressing block 9 and the fixing block 11 are pushed to move vertically in the two slide grooves 8 until the test end 3 moves to the appropriate position, so that the test end 3 is exposed through the through hole 20, and then the floating plate 12 is put into the solution for testing. This article highlights the innovative structure and does not elaborate on the prior art.

[0030] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A floating pH electrode, comprising a pH electrode (1), characterized in that: The pH electrode (1) comprises a gripping end (2) and a testing end (3); the outer wall of the gripping end (2) is fixedly connected to a fixing box (4); both sides of the fixing box (4) are slidably connected to a snap-in plate (5); a snap-in box (6) is provided on the outer side of the fixing box (4); two symmetrical surfaces of the snap-in box (6) are provided with a plurality of snap-in slots (7); the size of the snap-in slots (7) matches the size of the snap-in plate (5).

2. A floating pH electrode according to claim 1, characterized in that: An N-shaped push plate (10) is inserted into one side of the fixed box (4), and a pressing block (9) is fixedly connected to one side of the N-shaped push plate (10).

3. A floating pH electrode according to claim 2, characterized in that: Two symmetrical surfaces of the card box (6) are provided with slide grooves (8), the size of the pressing block (9) matches the slide groove (8), and the pressing block (9) slides in the slide groove (8).

4. A floating pH electrode according to claim 1, characterized in that: A fixed block (11) is fixedly connected to one side of the fixed box (4), the size of the fixed block (11) matches the size of the slide groove (8) on the other side, and the fixed block (11) slides in the other slide groove (8).

5. A floating pH electrode according to claim 1, characterized in that: Two fixing plates (16) are fixedly connected inside the fixing box (4), and the two fixing plates (16) are symmetrically placed. Second springs (17) are fixedly connected to both sides of the two fixing plates (16), and one end of the four second springs (17) away from the fixing plates (16) is fixedly connected to the opposite side of the two clamping plates (5).

6. A floating pH electrode according to claim 2, characterized in that: A group of triangular plates (14) are fixedly connected to the inner wall of the N-shaped push plate (10), one side of two triangular plates (14) are fixedly connected to a first spring (13), and one end of the two first springs (13) away from the triangular plates (14) are fixedly connected to the inner wall of the fixed box (4).

7. A floating pH electrode according to claim 1, characterized in that: One side of the two clamping plates (5) is provided with a groove (15), and the sizes of the two grooves (15) respectively match the sizes of the corresponding triangular plates (14).

8. A floating pH electrode according to claim 1, characterized in that: The bottom surface of the card box (6) is fixedly connected to a floating plate (12), the bottom surface of the floating plate (12) is provided with two symmetrical receiving grooves (18), airbag bags (19) are placed inside the two receiving grooves (18), and a through hole (20) is provided inside the floating plate (12), and the size of the through hole (20) is larger than the size of the test end (3).

Images