Laboratory PH meter calibration device

Abstract

The utility model relates to the technical field of PH meters, and discloses a laboratory PH meter calibration device which comprises a bottom plate installed on one side of a PH meter body detection rod, the upper surface of the bottom plate is fixedly connected with a supporting plate, the inner wall of the supporting plate is connected with a lifting assembly and a rotating assembly, and the output end of the rotating assembly is connected with a rotating plate. A plurality of cup cavities are formed in the upper surface of the rotating plate in a penetrating mode, the upper surface of the rotating plate is connected with a connecting assembly, the other end of the connecting assembly is connected with the detection rod, the output end of the lifting assembly is aligned with the cup cavities in a matched mode, the upper surface of the rotating plate is connected with a plurality of cover plates, the number of the cover plates is half of that of the cup cavities, and the cover plates and the cup cavities are distributed in a staggered mode. According to the laboratory PH meter calibration device, when a user calibrates the PH meter body, the user only needs to align the detection rod with the cup cavity and place different test solutions and cleaning solutions in the cup cavity, and the situation that the adjacent test solutions are mixed, and consequently the test result is affected can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of pH meters, in particular to a laboratory pH meter calibration device. Background Art

[0002] A pH meter is an instrument used to measure the acidity and alkalinity of a solution. It is mainly used to determine the pH value of a solution. pH meters are widely used in laboratories, industrial production, environmental monitoring and other fields. They are used to monitor and control the pH of water quality, soil, and chemical production processes, as well as experiments and research in biology, medicine and other fields. In order to ensure the accuracy and reliability of pH meter measurements, it is often necessary to use a calibration device to calibrate the pH meter.

[0003] After searching, the patent with the authorization publication number CN219016179U discloses a pH meter calibration device, which relates to the field of pH meter calibration technology, including a base and a placement mechanism arranged on the base, and also includes: a plurality of beakers, and the plurality of beakers are arranged on the placement mechanism; a lifting plate, the lifting plate is vertically slidably arranged on the base, and an adjustment mechanism for driving the lifting plate to lift and lower is arranged between the base and the lifting plate. The pH meter calibration device provided by the utility model utilizes a rotating mechanism and a lifting mechanism, so that the pH meter body to be tested can be inserted into the beakers containing different solutions in sequence according to the two-point calibration method for calibration, and the replacement of the solution in the prior art is avoided as much as possible, resulting in the mixing of two solutions with different pH values, which affects the calibration operation of the pH meter, which not only reduces the workload of the staff, but also improves the calibration efficiency of the pH meter by the calibration device.

[0004] However, the following problems still exist in the current pH meter calibration device:

[0005] Although the pH meter calibration device can test multiple solutions at the same time, there is no step for cleaning the pH meter electrodes during the test. This results in some solution remaining on the pH meter electrodes. After this solution is mixed with the solution of the second test, it is likely to affect the test results, which is inconvenient. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides a laboratory pH meter calibration device. When the user calibrates the pH meter body, he only needs to align the detection rod with the cup cavity and place different test solutions and cleaning solutions inside the cup cavity, which can avoid mixing of adjacent test solutions and affecting the test results.

[0007] The utility model provides the following technical solutions: a laboratory pH meter calibration device, comprising a bottom plate installed on one side of a detection rod of a pH meter body, the upper surface of the bottom plate is fixedly connected to a support plate, the inner wall of the support plate is connected to a lifting assembly and a rotating assembly, the output end of the rotating assembly is connected to a rotating plate, a plurality of cup cavities are penetrated through the upper surface of the rotating plate, a connecting assembly is connected to the upper surface of the rotating plate, the other end of the connecting assembly is connected to the detection rod, the output end of the lifting assembly is matched and aligned with the plurality of cup cavities, the upper surface of the rotating plate is connected to a plurality of cover plates, the number of the cover plates is half of the cup cavities, and the cover plates are staggered with the cup cavities, and the end of the detection rod away from the pH meter body penetrates the cover plate and is slidably connected to the inner wall of the cover plate.

[0008] Furthermore, the lifting assembly includes a rotating motor, a motor cavity is opened on the upper surface of the support plate, the outer wall of the rotating motor is fixedly connected to the inner wall of the motor cavity, and the output shaft of the rotating motor is fixedly connected to the inner wall of the rotating plate.

[0009] Furthermore, the rotating assembly includes a lifting cylinder, a lifting cavity is opened on the upper surface of the support plate, the outer wall of the lifting cylinder is fixedly connected to the inner wall of the lifting cavity, the lifting cylinder is matched and aligned with the cup cavity, and the output end of the lifting cylinder passes through the cup cavity.

[0010] Furthermore, the connecting assembly includes a supporting rod and a connecting rod, one end of the supporting rod is fixedly connected to the upper surface of the rotating plate, the other end of the supporting rod is fixedly connected to one end of the connecting rod, and the other end of the connecting rod is connected to the detection rod.

[0011] Furthermore, a clamping groove is provided at one end of the connecting rod away from the supporting rod, the outer wall of the detection rod is fixedly connected with the clamping rod, and the inner wall of the clamping groove is slidably connected with the outer wall of the clamping rod.

[0012] Furthermore, a cleaning ring is fixedly connected to the upper surface of the cover plate, and the inner wall of the cleaning ring is slidably connected to the outer wall of the detection rod.

[0013] Furthermore, a plurality of marks are provided on the upper surface of the rotating plate, and the plurality of marks are respectively aligned with the plurality of cup cavities.

[0014] Furthermore, a plurality of anti-slip cavities are provided on the upper surface of the rotating plate, a plurality of insert rods are fixedly connected to the bottom surfaces of the plurality of cover plates, and the outer walls of the plurality of insert rods are slidably connected to the inner walls of the plurality of anti-slip cavities respectively.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] This laboratory pH meter calibration device arranges a bottom plate, a support plate and a rotating plate on one side of a detection rod of the pH meter body, and arranges a rotating component and a lifting component inside the support plate and the rotating plate. When the user calibrates the pH meter body, he only needs to align the detection rod with the cup cavity and place different test solutions and cleaning solutions inside the cup cavity, so as to avoid mixing of adjacent test solutions and affecting the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall appearance of the utility model;

[0018] Figure 2 This is a schematic diagram of the overall appearance of the pH meter body and the detection rod of the utility model;

[0019] Figure 3 This is a schematic diagram of the overall appearance of the bottom plate, support plate and rotating plate of the utility model;

[0020] Figure 4 The utility model is based on Figure 3 Exploded diagram of each component in the diagram;

[0021] Figure 5 The utility model is based on Figure 4 The enlarged schematic diagram of point A in the middle;

[0022] Figure 6 The utility model is based on Figure 4 The enlarged schematic diagram of point B in the middle;

[0023] Figure 7 This is a schematic diagram of the overall appearance of the utility model from another perspective.

[0024] In the figure: 1. pH meter body; 2. Detection rod; 3. Bottom plate; 4. Support plate; 5. Turn plate; 6. Cover plate; 7. Cleaning ring; 8. Support rod; 9. Connecting rod; 10. Clamping rod; 11. Rotating motor; 12. Lifting cylinder; 13. Inserting rod; 401. Motor cavity; 402. Lifting cavity; 501. Mark; 502. Cup cavity; 503. Anti-drop cavity; 901. Card slot. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0026] See also Figure 1-Figure 7A laboratory pH meter calibration device includes a bottom plate 3 installed on one side of a detection rod 2 of a pH meter body 1, a support plate 4 is fixedly connected to the upper surface of the bottom plate 3, a lifting assembly and a rotating assembly are connected to the inner wall of the support plate 4, a rotating plate 5 is connected to the output end of the rotating assembly, a plurality of cup cavities 502 are penetrated through the upper surface of the rotating plate 5, a connecting assembly is connected to the upper surface of the rotating plate 5, the other end of the connecting assembly is connected to the detection rod 2, the output end of the lifting assembly is matched and aligned with the plurality of cup cavities 502, a plurality of cover plates 6 are connected to the upper surface of the rotating plate 5, the number of the cover plates 6 is half of the cup cavities 502, and the cover plates 6 are staggered with the cup cavities 502, and the end of the detection rod 2 away from the pH meter body 1 penetrates the cover plate 6 and is slidably connected to the inner wall of the cover plate 6.

[0027] The laboratory pH meter calibration device in the utility model is similar in structure to the existing laboratory pH meter calibration device, such as the pH meter calibration device disclosed in the patent with publication number CN219016179U. The main improvement of the utility model is that when the user calibrates the pH meter body 1, he only needs to align the detection rod 2 with the cup cavity 502 and place different test solutions and cleaning solutions inside the cup cavity 502, which can avoid the mixing of adjacent test solutions and affect the test results. Figures 1 to 7 As shown, when the laboratory pH meter calibration device of the utility model is used, firstly, the connecting component is aligned with the outer wall of the detection rod 2, so that the calibration device is aligned and connected with the pH meter body 1, and then various test solutions and cleaning solutions are respectively placed in different cup bodies, and various test solutions and cleaning solutions are staggered and distributed, and then the cup bodies containing different solutions are placed in different cup cavities 502, and then the rotating component and the lifting component are started by an external controller. After the rotating component is started, the output shaft drives the rotating plate 5 to rotate, and when the rotating plate 5 rotates one of the test solution cup bodies to the bottom of the detection rod 2, the lifting mechanism is started by the external controller, and the lifting mechanism pushes The cup body in the moving cup cavity 502 rises until the detection rod 2 is immersed in the solution in the cup body and stops. Then, the value on the pH meter body 1 is changed according to the degree to adjust the value to the normal range. Then, the cup body is controlled to descend again through the lifting mechanism to separate the detection rod 2 from the cup body. Then, the rotating assembly rotates the rotating plate 5 again. After the rotating plate 5 rotates, the other cup body is rotated to the bottom of the detection rod 2. Then, the same steps are performed according to the above steps. Because a cleaning solution is provided between the adjacent detection solutions on both sides, the previous solution adhering to the surface of the detection rod 2 can be cleaned up, thereby avoiding the mixing of adjacent test solutions and affecting the test results.

[0028] Please refer to Figure 4 and Figure 7The lifting assembly includes a rotating motor 11, a motor cavity 401 is opened on the upper surface of the support plate 4, the outer wall of the rotating motor 11 is fixedly connected to the inner wall of the motor cavity 401, and the output shaft of the rotating motor 11 is fixedly connected to the inner wall of the rotating plate 5.

[0029] More specifically, when the rotating plate 5 needs to be controlled to rotate, the switch of the rotating motor 11 is first turned on by an external controller, and the output shaft of the rotating motor 11 drives the rotating plate 5 to rotate, and then the solution cup in the cup cavity 502 of the rotating plate 5 can be rotated together.

[0030] Please refer to Figure 4 and Figure 7 The rotating assembly includes a lifting cylinder 12, a lifting cavity 402 is opened on the upper surface of the support plate 4, the outer wall of the lifting cylinder 12 is fixedly connected to the inner wall of the lifting cavity 402, the lifting cylinder 12 is matched and aligned with the cup cavity 502, and the output end of the lifting cylinder 12 passes through the cup cavity 502.

[0031] More specifically, when the solution cup in the cup cavity 502 needs to be pushed up, the switch of the lifting cylinder 12 is first turned on by an external controller. After the lifting cylinder 12 is started, the output end rises and passes through the cup cavity 502, so that the cup body containing the solution in the cup cavity 502 can be pushed up.

[0032] Please refer to Figure 1 , Figure 3-Figure 5 and Figure 7 The connecting assembly includes a support rod 8 and a connecting rod 9, one end of the support rod 8 is fixedly connected to the upper surface of the rotating plate 5, the other end of the support rod 8 is fixedly connected to one end of the connecting rod 9, and the other end of the connecting rod 9 is connected to the detection rod 2. A clamping groove 901 is formed at one end of the connecting rod 9 away from the support rod 8, the outer wall of the detection rod 2 is fixedly connected to the clamping rod 10, and the inner wall of the clamping groove 901 is slidably connected to the outer wall of the clamping rod 10.

[0033] More specifically, when the calibration device needs to be connected to the pH meter body 1, it is only necessary to align the slot 901 of the connecting rod 9 with the clamping rod 10 of the detection rod 2 and clamp it, so that the calibration device can be stably connected to the pH meter body 1 and the calibration device will not be misaligned with the pH meter body 1 during rotation.

[0034] Please refer to Figure 1 , Figure 3-Figure 5 and Figure 7The upper surface of the cover plate 6 is fixedly connected with a cleaning ring 7, and the inner wall of the cleaning ring 7 is slidably connected with the outer wall of the detection rod 2. By providing the cleaning ring 7, firstly, the residual solution on the surface of the detection rod 2 can be adsorbed and wiped, and secondly, the alignment of the cover plate 6 and the detection rod 2 can be more convenient and accurate; and it is worth mentioning here that the material of the cleaning ring 7 can be sponge or other materials with strong adsorption and softness, and there is no specific limitation.

[0035] Please refer to Figure 3 , Figure 4 and Figure 6 The upper surface of the rotating plate 5 is provided with a plurality of marks 501, and the plurality of marks 501 are respectively aligned with the plurality of cup cavities 502. By providing the marks 501, suitable detection solutions or cleaning solutions can be placed according to the marks 501, for example, text or numbers can be pasted at the marks 501 to facilitate user identification.

[0036] Please refer to Figure 4 , Figure 6 and Figure 7 The upper surface of the rotating plate 5 is provided with a plurality of anti-slip cavities 503, and the bottom surfaces of the plurality of cover plates 6 are fixedly connected with a plurality of insertion rods 13, and the outer walls of the plurality of insertion rods 13 are respectively slidably connected with the inner walls of the plurality of anti-slip cavities 503. By providing the anti-slip cavities 503 and the insertion rods 13, when placing or taking the cup body in the cup cavity 502, the cover plate 6 can be pulled upward without being separated from the rotating plate 5.

[0037] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may 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 shall be included in the protection scope of the present invention.

Claims

1. A laboratory pH meter calibration device, comprising a bottom plate (3) mounted on one side of a detection rod (2) of a pH meter body (1), characterized in that: The upper surface of the bottom plate (3) is fixedly connected to a support plate (4), the inner wall of the support plate (4) is connected to a lifting assembly and a rotating assembly, the output end of the rotating assembly is connected to a rotating plate (5), a plurality of cup cavities (502) are penetrated through the upper surface of the rotating plate (5), a connecting assembly is connected to the upper surface of the rotating plate (5), the other end of the connecting assembly is connected to the detection rod (2), the output end of the lifting assembly is matched and aligned with the plurality of cup cavities (502), the upper surface of the rotating plate (5) is connected to a plurality of cover plates (6), the number of the cover plates (6) is half of the number of the cup cavities (502), and the cover plates (6) and the cup cavities (502) are staggered, and the end of the detection rod (2) away from the pH meter body (1) penetrates the cover plate (6) and is slidably connected to the inner wall of the cover plate (6).

2. A laboratory pH meter calibration device according to claim 1, characterized in that: The lifting assembly comprises a rotating motor (11), a motor cavity (401) is provided on the upper surface of the support plate (4), the outer wall of the rotating motor (11) is fixedly connected to the inner wall of the motor cavity (401), and the output shaft of the rotating motor (11) is fixedly connected to the inner wall of the rotating plate (5).

3. A laboratory pH meter calibration device according to claim 1 or 2, characterized in that: The rotating assembly comprises a lifting cylinder (12), a lifting cavity (402) is provided on the upper surface of the support plate (4), the outer wall of the lifting cylinder (12) is fixedly connected to the inner wall of the lifting cavity (402), the lifting cylinder (12) is matched and aligned with the cup cavity (502), and the output end of the lifting cylinder (12) passes through the cup cavity (502).

4. A laboratory pH meter calibration device according to claim 1 or 2, characterized in that: The connecting assembly comprises a support rod (8) and a connecting rod (9), one end of the support rod (8) is fixedly connected to the upper surface of the rotating plate (5), the other end of the support rod (8) is fixedly connected to one end of the connecting rod (9), and the other end of the connecting rod (9) is connected to the detection rod (2).

5. A laboratory pH meter calibration device according to claim 4, characterized in that: A clamping groove (901) is formed at one end of the connecting rod (9) away from the supporting rod (8); a clamping rod (10) is fixedly connected to the outer wall of the detection rod (2); and an inner wall of the clamping groove (901) is slidably connected to the outer wall of the clamping rod (10).

6. A laboratory pH meter calibration device according to claim 1, 2 or 5, characterized in that: A cleaning ring (7) is fixedly connected to the upper surface of the cover plate (6), and the inner wall of the cleaning ring (7) is slidably connected to the outer wall of the detection rod (2).

7. A laboratory pH meter calibration device according to claim 1, 2 or 5, characterized in that: The upper surface of the rotating plate (5) is provided with a plurality of marks (501), and the plurality of marks (501) are respectively aligned with the plurality of cup cavities (502).

8. A laboratory pH meter calibration device according to claim 1, 2 or 5, characterized in that: The upper surface of the rotating plate (5) is provided with a plurality of anti-slip cavities (503), the bottom surfaces of the plurality of cover plates (6) are fixedly connected with a plurality of insertion rods (13), and the outer walls of the plurality of insertion rods (13) are respectively slidably connected with the inner walls of the plurality of anti-slip cavities (503).

Images