PH tester

Abstract

The utility model relates to the technical field of detection equipment, and particularly discloses a pH tester which comprises a sample bottle, a pH electrode, a lifting mechanism, a swinging mechanism, a turntable mechanism and a control system, the lifting mechanism is used for driving the pH electrode to move up and down; the swing mechanism is arranged on the lifting mechanism and is used for driving the pH electrode to move; the turntable mechanism is used for driving sample bottles to rotate; the control system is configured to be electrically connected with the pH electrode, the lifting mechanism, the swinging mechanism and the turntable mechanism; the turntable mechanism is provided with a positioner and an assembling groove; the assembling groove is obliquely arranged and is used for allowing the bottom of a sample bottle to be inserted; the positioner is configured to be in sliding connection with the turntable mechanism, and the positioner is used for abutting against the sample bottles; the control system is at least configured to control the turntable mechanism to rotate back and forth; the pH tester can be used for simultaneously detecting a plurality of samples, and has the advantages of high automation degree and high detection efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of detection equipment, in particular to a pH tester. Background Art

[0002] pH meter tester is a commonly used instrument, mainly used to accurately measure the pH value of liquid media. It can measure the mV value of ion electrode potential when equipped with corresponding ion selective electrodes. It is widely used in industry, agriculture, scientific research, environmental protection and other fields.

[0003] In existing pH meter testers, sample bottles are often placed horizontally, which results in insufficient contact between the solution and the pH electrode when there is less sample test solution in the sample bottle, affecting accuracy and stability. Therefore, it is necessary to make improvements. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a pH tester, which can meet the requirements of simultaneous testing of multiple samples and has the advantages of high automation and high testing efficiency.

[0005] In order to solve the above problems, the utility model adopts the following technical solutions:

[0006] A pH tester comprises: at least one sample bottle, at least one pH electrode, at least one lifting mechanism, at least one swing mechanism, a turntable mechanism and a control system.

[0007] The at least one lifting mechanism is used to drive the pH electrode to move up and down, so that the at least one pH electrode enters / moves out of the at least one sample bottle.

[0008] The at least one swing mechanism is configured on the lifting mechanism, and the swing mechanism is used to drive the pH electrode to move.

[0009] The turntable mechanism is used to drive the at least one sample bottle to rotate.

[0010] The control system is configured to be electrically connected to the at least one pH electrode, the at least one lifting mechanism, the at least one swing mechanism and the turntable mechanism.

[0011] The at least one turntable mechanism is provided with a positioner and at least one assembly groove.

[0012] The at least one assembly groove is arranged obliquely, and is used for inserting the bottom of the at least one sample bottle, so that the bottle mouth of the at least one sample bottle is inclined in a direction away from the central axis of the turntable mechanism.

[0013] The positioner is configured to be slidably connected to the turntable mechanism, and the positioner is used to abut against the at least one sample bottle to position the at least one sample bottle.

[0014] The control system is at least configured to control the turntable mechanism to rotate back and forth to mix the solution in the at least one sample bottle.

[0015] The pH tester provided in at least one embodiment of the present disclosure further includes: at least one cleaning bottle.

[0016] The number of the assembly grooves is at least two.

[0017] The assembly groove is also used for inserting the bottom of the at least one cleaning bottle so that the bottle mouth of the at least one cleaning bottle is tilted in a direction away from the central axis of the turntable mechanism.

[0018] In the pH tester provided by at least one embodiment of the present disclosure, the positioner is located in the middle of the turntable mechanism.

[0019] A connecting shaft is arranged in the middle of the turntable mechanism, a guide hole matched with the connecting shaft is arranged on the positioner, and the turntable mechanism and the positioner are slidably connected through the connecting shaft and the guide hole.

[0020] The central axis of the connecting shaft coincides with the central axis of the turntable mechanism.

[0021] In the pH tester provided by at least one embodiment of the present disclosure, the lifting mechanism is located behind the turntable mechanism.

[0022] The swing mechanism is used to drive the pH electrode to move in a direction away from or toward the lifting mechanism.

[0023] In the pH tester provided in at least one embodiment of the present disclosure, there are four assembly slots.

[0024] The sample bottles are configured in three numbers, and the cleaning bottle is configured in one number.

[0025] The four assembly grooves are distributed in a ring array.

[0026] In the pH tester provided in at least one embodiment of the present disclosure, the swing mechanism includes: a base, a first motor and a clamp.

[0027] The base is configured to be fixedly connected to the lifting mechanism.

[0028] The first motor is fixedly arranged on the base.

[0029] The clamp is used to clamp the pH electrode.

[0030] A linear guide rail is fixedly arranged on the base, and the clamp is configured to be fixedly connected to a slider of the linear guide rail.

[0031] A connecting rod is arranged between the clamp and the first motor, an eccentric wheel is arranged on the output shaft of the first motor, and the eccentric wheel and the clamp are both movably connected to the connecting rod.

[0032] The base is provided with an active hole, and the pH electrode passes through the active hole.

[0033] In the pH tester provided in at least one embodiment of the present disclosure, both ends of the connecting rod are provided with joint bearings, and the eccentric wheel and the clamp are movably connected to the connecting rod through the joint bearings.

[0034] In the pH tester provided in at least one embodiment of the present disclosure, a mounting groove is provided on the base, and the linear guide rail is located on the groove wall of the mounting groove.

[0035] The mounting groove is communicated with the movable hole.

[0036] In the pH tester provided in at least one embodiment of the present disclosure, the turntable mechanism includes: a second motor and a conical turntable.

[0037] The conical turntable is configured to be fixedly connected to the output shaft of the second motor.

[0038] The connecting shaft is fixedly arranged at the middle part of the conical turntable, and the assembly groove is located on the conical turntable.

[0039] In the pH tester provided in at least one embodiment of the present disclosure, the control system is an Internet of Things control system.

[0040] The beneficial effects of the utility model are:

[0041] Compared with the horizontal placement, the sample bottle is placed in an inclined manner. Even when there is less sample test solution in the sample bottle, it still has a higher depth, which is conducive to the contact between the pH electrode and the sample test solution.

[0042] The lifting mechanism and the turntable mechanism can make the pH electrode gradually detect the sample in the sample bottle. During the detection process, the pH electrode can swing back and forth to ensure that the electrode and the sample solution are in full contact, thereby ensuring the stability of the test results. After the test, the electrode can be cleaned, thereby realizing the characteristics of fully automatic stirring, detection and cleaning integration. There is no need for manual detection and cleaning, and it can meet the continuous detection of multiple samples. It has the advantages of high degree of automation and high detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0044] Figure 1 Schematic diagram of the overall structure of a pH tester in some embodiments.

[0045] Figure 2 It is a schematic diagram of the structure of the pH tester in some embodiments when the sample bottle and the cleaning bottle are not assembled.

[0046] Figure 3 Schematic diagram of the structure of the pH tester in some embodiments when the sample bottle, the cleaning bottle and the positioner are not assembled.

[0047] Figure 4 Schematic diagram of the overall structure of a pH tester in some embodiments.

[0048] Figure 5 A stereogram of the locator.

[0049] Figure 6 It is a structural diagram of the swing mechanism.

[0050] Figure 7 It is a structural diagram of the swing mechanism.

[0051] Figure 8 1 is a cross-sectional view of a pH tester in some embodiments.

[0052] Fig. 9 Schematic diagram of the connection between the positioner and the connecting shaft in some embodiments.

[0053] In the figure:

[0054] 10. Sample bottle;

[0055] 20. pH electrode;

[0056] 30. Lifting mechanism;

[0057] 40. Swing mechanism; 41. Base; 42. First motor; 43. Clamp; 44. Linear guide; 45. Connecting rod;

[0058] 50. turntable mechanism; 51. positioner; 52. assembly groove; 53. second motor; 54. conical turntable; 55. connecting shaft; 511. guide hole;

[0059] 60. Control system;

[0060] 70. Cleaning bottle;

[0061] 80. Return spring. DETAILED DESCRIPTION

[0062] The technical solutions in the embodiments will be described clearly and completely below in conjunction with the drawings in the embodiments. Obviously, the described embodiments are only a part of the embodiments, rather than all the embodiments.

[0063] like Figure 1 and 2 As shown, a pH tester includes a sample bottle 10, a pH electrode 20, a lifting mechanism 30, a swing mechanism 40, a turntable mechanism 50, a control system 60 and a cleaning bottle 70.

[0064] Furthermore, the lifting mechanism 30 is used to drive the pH electrode 20 to move up and down. The pH electrode 20 can move away from and out of the sample bottle 10 when it moves upward, and can move into the sample bottle 10 when it moves downward. By configuring the lifting mechanism 30, the pH electrode 20 can enter and be removed from the sample bottle 10.

[0065] Furthermore, the swing mechanism 40 is disposed on the lifting mechanism 30 , and the swing mechanism 40 is used to drive the pH electrode 20 to move, thereby stirring the sample.

[0066] Furthermore, the turntable mechanism 50 is used to drive the sample bottle 10 to rotate, which can realize continuous detection of multiple samples and improve the degree of automation and detection efficiency.

[0067] Further, the control system 60 is configured to be electrically connected to the pH electrode 20, the lifting mechanism 30, the swing mechanism 40 and the turntable mechanism 50. The pH electrode 20, the lifting mechanism 30, the swing mechanism 40 and the turntable mechanism 50 can be controlled by programming.

[0068] Furthermore, the turntable mechanism 50 is provided with a positioner 51 and an assembly groove 52. The assembly groove 52 is arranged at an angle, and is used for inserting the bottom of the sample bottle 10, so that the bottle mouth of the sample bottle 10 is inclined in a direction away from the central axis of the turntable mechanism 50. The positioner 51 is configured to be slidably connected to the turntable mechanism 50, and the positioner 51 is used to abut against the sample bottle 10 to position the sample bottle 10.

[0069] Compared with the horizontal placement, the sample bottle 10 is placed in an inclined manner. Even when there is less sample test solution in the sample bottle, it still has a high depth, which is conducive to the contact between the pH electrode 20 and the sample test solution.

[0070] The control system 60 is configured to control the turntable mechanism 50 to rotate back and forth.

[0071] In this embodiment, the assembly groove 52 is also used for inserting the bottom of the cleaning bottle 70 , so that the mouth of the cleaning bottle 70 is tilted in a direction away from the central axis of the turntable mechanism 50 .

[0072] like Figure 3 , 4 As shown in FIG. 5 , in this embodiment, the positioner 51 is located in the middle of the turntable mechanism 50 , and can use its own weight to press the sample bottle 10 and the cleaning bottle 70 to reduce the possibility of the sample bottle 10 and the cleaning bottle 70 tipping over.

[0073] Furthermore, a connecting shaft 55 is provided in the middle of the turntable mechanism 50 , and a guide hole 511 matching with the connecting shaft 55 is provided on the positioner 51 . The turntable mechanism 50 and the positioner 51 are slidably connected via the connecting shaft 55 and the guide hole 511 .

[0074] Furthermore, the central axis of the connecting shaft 55 coincides with the central axis of the turntable mechanism 50 .

[0075] In this embodiment, the lifting mechanism 30 is located behind the turntable mechanism 50 .

[0076] Furthermore, the swing mechanism 40 is used to drive the pH electrode 20 to move away from or toward the lifting mechanism 30, thereby mixing the solution in the sample bottle 10, and the pH electrode 20 is inserted into the cleaning bottle 70 and swings to clean itself, which can effectively avoid cross contamination of samples and reduce test deviation.

[0077] Exemplarily, the lifting mechanism 30 uses an electric telescopic rod.

[0078] In this embodiment, there are four assembly slots 52. There are three sample bottles 10 and one cleaning bottle 70. The four assembly slots 52 are distributed in a circular array.

[0079] For example, in order to facilitate programming to control the constant placement of the sample bottle 10 and the cleaning bottle 70 and to facilitate the installation of the cleaning bottle 70 , a mark can be set in one of the assembly grooves 52 so that the assembly groove 52 is specifically used to place the cleaning bottle 70 .

[0080] like Figure 6 and 7 As shown, in this embodiment, the swing mechanism 40 includes a base 41 , a first motor 42 and a clamp 43 .

[0081] Furthermore, the base 41 is configured to be fixedly connected to the lifting mechanism 30 , the first motor 42 is fixedly configured on the base 41 , and the clamp 43 is used to clamp the pH electrode 20 .

[0082] Furthermore, a linear guide rail 44 is fixedly disposed on the base 41 , and the clamp 43 is configured to be fixedly connected to a slider of the linear guide rail 44 .

[0083] Furthermore, a connecting rod 45 is provided between the clamp 43 and the first motor 42 , an eccentric wheel is provided on the output shaft of the first motor 42 , and the eccentric wheel and the clamp 43 are both movably connected to the connecting rod 45 .

[0084] Furthermore, the base 41 is provided with an active hole, and the pH electrode 20 passes through the active hole.

[0085] Furthermore, both ends of the connecting rod 45 are provided with joint bearings, and the eccentric wheel and the clamp 43 are movably connected to the connecting rod 45 via the joint bearings.

[0086] Furthermore, a mounting groove is provided on the base 41 , the linear guide rail 44 is located on the groove wall of the mounting groove, and the mounting groove is communicated with the movable hole.

[0087] like Figure 8 As shown, in this embodiment, the turntable mechanism 50 includes a second motor 53 and a conical turntable 54 .

[0088] Furthermore, the conical turntable 54 is configured to be fixedly connected to the output shaft of the second motor 53 , the connecting shaft 55 is fixedly configured in the middle of the conical turntable 54 , and the assembly groove 52 is located on the conical turntable 54 .

[0089] In this embodiment, the control system 60 is an Internet of Things control system 60 .

[0090] Exemplarily, the Internet of Things control system 60 includes a touch screen (not shown) and an Internet of Things controller (not shown). The touch screen and the Internet of Things controller are electrically connected. By adopting the Internet of Things controller, test data can be sent to other receiving terminals through the network, realizing data transmission, Internet of Things and traceability, facilitating remote data viewing and avoiding data loss.

[0091] When in use, the sample solution to be tested is placed in the sample bottle 10, and cleaning liquid is added to the cleaning bottle 70, and then the equipment is started. According to the predetermined detection program, the sample in the sample bottle 10 is gradually detected through the pH electrode 20, the lifting mechanism 30, the swing mechanism 40 and the turntable mechanism 50. During the detection process, the pH electrode can swing to ensure that the electrode and the sample solution are in full contact, ensuring the stability of the test results. After the test, the electrode can be cleaned, thereby realizing the characteristics of fully automatic stirring and integrated detection, without the need for manual detection, and can meet the simultaneous detection of multiple samples, with the advantages of high degree of automation and high detection efficiency.

[0092] like Fig. 9As shown, in some embodiments, the connecting shaft 55 adopts a half-thread bolt, a reset spring 80 is provided in the guide hole 511, the head of the half-thread bolt is located outside the guide hole 511, and the threaded end of the half-thread bolt passes through the reset spring 80 and the guide hole 511 in sequence and is threadedly connected to the turntable mechanism.

[0093] Furthermore, the guide hole 511 is a stepped hole, and the diameter of the guide hole 511 increases gradually in a direction away from the turntable mechanism.

[0094] Although the embodiments of the present application have been shown and described above, the scope of protection of the present invention is not limited thereto, and any changes or substitutions that are not conceivable through creative work should be included in the scope of protection of the present invention; unless explicitly stated, any element, action or instruction used in this document should not be interpreted as critical or necessary.

Claims

1. A pH tester, characterized in that: include: At least one sample bottle; At least one pH electrode; At least one lifting mechanism, used to drive the pH electrode to move up and down, so that the at least one pH electrode enters / moves out of the at least one sample bottle; At least one swing mechanism, disposed on the lifting mechanism, the swing mechanism being used to drive the pH electrode to move; A turntable mechanism, used for driving the at least one sample bottle to rotate; as well as a control system configured to be electrically connected to the at least one pH electrode, the at least one lifting mechanism, the at least one swing mechanism and the turntable mechanism; Wherein, the at least one turntable mechanism is provided with a positioner and at least one assembly groove; The at least one assembly groove is arranged obliquely, and the at least one assembly groove is used for inserting the bottom of the at least one sample bottle, so that the bottle mouth of the at least one sample bottle is inclined in a direction away from the central axis of the turntable mechanism; The positioner is configured to be slidably connected to the turntable mechanism, and the positioner is used to abut against the at least one sample bottle to position the at least one sample bottle; The control system is at least configured to control the turntable mechanism to rotate back and forth to mix the solution in the at least one sample bottle.

2. A pH tester according to claim 1, characterized in that: Also includes: at least one rinse bottle; Wherein, the assembly slots are configured with at least two; The assembly groove is also used for inserting the bottom of the at least one cleaning bottle so that the bottle mouth of the at least one cleaning bottle is tilted in a direction away from the central axis of the turntable mechanism.

3. A pH tester according to claim 2, characterized in that: The positioner is located in the middle of the turntable mechanism; A connecting shaft is provided in the middle of the turntable mechanism, a guide hole matched with the connecting shaft is provided on the positioner, and the turntable mechanism and the positioner are slidably connected through the connecting shaft and the guide hole; The central axis of the connecting shaft coincides with the central axis of the turntable mechanism.

4. A pH tester according to claim 1, characterized in that: The lifting mechanism is located behind the turntable mechanism; The swing mechanism is used to drive the pH electrode to move in a direction away from or toward the lifting mechanism.

5. A pH tester according to claim 2, characterized in that: The assembly slots are configured with four; The sample bottles are configured with three, and the cleaning bottle is configured with one; The four assembly grooves are distributed in a ring array.

6. A pH tester according to claim 4, characterized in that: The swing mechanism comprises: A base, configured to be fixedly connected to the lifting mechanism; A first motor is fixedly disposed on the base; and A clamp, used for clamping the pH electrode; Wherein, a linear guide rail is fixedly arranged on the base, and the clamp is configured to be fixedly connected to a slider of the linear guide rail; A connecting rod is arranged between the clamp and the first motor, an eccentric wheel is arranged on the output shaft of the first motor, and the eccentric wheel and the clamp are both movably connected to the connecting rod; The base is provided with an active hole, and the pH electrode passes through the active hole.

7. A pH tester according to claim 6, characterized in that: Both ends of the connecting rod are provided with joint bearings, and the eccentric wheel and the clamp are movably connected with the connecting rod through the joint bearings.

8. A pH tester according to claim 6, characterized in that: The base is provided with a mounting groove, and the linear guide rail is located on the groove wall of the mounting groove; The mounting groove is communicated with the movable hole.

9. A pH tester according to claim 3, characterized in that: The turntable mechanism comprises: Second motor; as well as a conical turntable configured to be fixedly connected to an output shaft of the second motor; Wherein, the connecting shaft is fixedly arranged in the middle of the conical turntable, and the assembly groove is located on the conical turntable.

10. A pH tester according to claim 1, characterized in that: The control system is an Internet of Things control system.

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