Calibrating device of conductivity instrument
By designing a conductivity instrument calibration device with a support platform and an adjustable support rod, the problems of inaccurate probe position and complex operation during the calibration process of the conductivity instrument are solved, and high accuracy, stability and operation convenience are improved.
Patent Information
- Application Number
- CN202422175988.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-04
- Publication Date
- 2025-08-19
- Estimated Expiration
- 2034-09-04
AI Technical Summary
During the calibration process of conductivity instruments, due to manual manual operation, the probe position is inaccurate and easy to touch the bottom of the beaker, which affects measurement accuracy and stability. The calibration flexibility of different types and sizes of probes is insufficient, and the operation is complicated and inefficient.
A conductivity instrument calibration device is designed, including a support platform, a height-adjustable support rod and a connecting rod, combined with a clamp and a lifting block to achieve precise position adjustment and stable clamping of the probe, adapting to different types and sizes of probes to ensure the stability and accuracy of the calibration process.
It improves the accuracy and stability of the calibration of the conductivity instrument, simplifies the operation process, reduces human errors, and enhances the applicability and calibration efficiency of the device.
Smart Images
Figure CN223244447U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to conductivity instrument technology, and in particular to a calibration device for a conductivity instrument. Background Art
[0002] The online calibration operation of the conductivity meter is to introduce the conductivity standard solution into the beaker and insert the probe of the conductivity meter into the beaker for calibration.
[0003] In related technologies, the calibration process typically involves holding the beaker and conductivity meter. Manually placing the probe requires a large movement, which can easily cause the conductivity meter probe to touch the bottom of the beaker, affecting measurement accuracy. Furthermore, after the probe is placed in the beaker, it needs to remain stationary for a period of time to obtain accurate measurements. Manually operating the probe is difficult to maintain, resulting in significant randomness and impacting the conductivity meter's calibration accuracy. Utility Model Content
[0004] The embodiment of the present application provides a calibration device for a conductivity meter, which is used to solve the technical problem in the related art that the conductivity meter is prone to low calibration accuracy due to manual operation during the calibration process.
[0005] An embodiment of the present application provides a calibration device for a conductivity meter, wherein the conductivity meter includes a probe, and the calibration device includes:
[0006] a supporting platform, wherein a container is placed on the supporting platform, and the container is filled with a calibration solution;
[0007] A support rod is provided on the support platform, and the height of the support rod is adjustable;
[0008] A connecting rod is connected to the free end of the support rod, an end of the connecting rod facing away from the support rod is provided with a mounting seat, an end of the mounting seat facing the support platform is connected to a lifting block, and the lifting block is adjustable in height at the mounting seat;
[0009] A clamping member is connected to the lifting block, and is used to clamp the probe so as to place the probe into the container.
[0010] In a possible embodiment, a guide plate is constructed at one end of the mounting seat facing the support platform, the lifting block is slidably connected to the guide plate, and the guide plate is provided with scale markings along its own guiding direction.
[0011] In a possible embodiment, the lifting block is connected to a rotating seat, and the rotating seat is configured to rotate circumferentially;
[0012] A protruding mounting plate is formed on one end of the rotating seat facing the supporting platform, and the clamping member is connected to the mounting plate and extends in a horizontal direction.
[0013] In a possible implementation manner, the clamping member is a pneumatic clamping jaw.
[0014] In a possible implementation manner, an insulating layer is provided on the contact end surface of the pneumatic clamping jaw for clamping the probe.
[0015] In a possible implementation, the support platform is provided with an auxiliary fixing component, and the auxiliary fixing component fixes the container on the support platform.
[0016] In a possible embodiment, the auxiliary fixing component includes two oppositely arranged clamping plates, the clamping plates are slidably provided on the supporting platform, and the container is clamped between the two clamping plates.
[0017] In a possible embodiment, one end of the splint close to the support platform is bent to form an auxiliary flange, and a positioning piece is passed through the auxiliary flange;
[0018] Under the action of external force, the positioning member passes through the auxiliary flange and presses against the supporting platform to fix the splint.
[0019] In a possible embodiment, a slide groove is provided on the support platform, and a clamping block is configured at the lower portion of the auxiliary flange, and the clamping block extends into the slide groove to form a sliding connection of the clamping plate on the support platform;
[0020] Wherein, the clamping block is perpendicular to the auxiliary flange and protrudes toward one side of the splint.
[0021] In a possible implementation manner, the length of the connecting rod is adjustable.
[0022] The calibration device for a conductivity meter provided in the present application has a support platform that provides a stable support foundation, ensuring that the container and calibration solution will not tilt or move during the calibration process, thereby ensuring a stable and reliable calibration process. The height-adjustable design of the support rod and the connecting rod allows the position of the clamp and the probe on the clamp to be precisely adjusted. On the one hand, this allows the probe position to be controlled during each calibration, facilitating multi-point detection at different positions and improving calibration accuracy. On the other hand, the height-adjustable design allows the clamp to easily adapt to probes of conductivity meters of different types and sizes, thereby enhancing the applicability of the calibration device. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.
[0024] Figure 1 This is a three-dimensional schematic diagram of a calibration device for a conductivity instrument in an embodiment of the present application;
[0025] Figure 2 This is a three-dimensional schematic diagram of a container placed on a support platform in an embodiment of the present application;
[0026] Figure 3 for Figure 1 Schematic diagram of the structure of the middle splint.
[0027] Description of Reference Numerals
[0028] 100. Support platform; 101. Slide;
[0029] 200, support rod; 300, connecting rod;
[0030] 400, mounting seat; 401, guide plate;
[0031] 500, lifting block; 501, rotating seat; 502, mounting plate;
[0032] 600, splint; 601, auxiliary flanging; 602, positioning piece; 603, clamping block;
[0033] 700, clamping part; 800, probe; 900, container.
[0034] The above drawings illustrate specific embodiments of the present application, which will be described in more detail below. These drawings and the textual description are not intended to limit the scope of the present application in any way, but rather to illustrate the concepts of the present application to those skilled in the art by reference to specific embodiments. DETAILED DESCRIPTION
[0035] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.
[0036] As described in the background art, conductivity instruments are widely used in the fields of chemistry, environmental monitoring, and food industry to measure the conductivity of solutions.
[0037] However, the measurement accuracy of conductivity instruments relies heavily on accurate probe calibration. Traditional conductivity instrument calibration methods often suffer from the following issues: First, imprecise probe fixation and position adjustment lead to large errors in the calibration results; second, the probe is easily affected by external interference during the calibration process, affecting calibration stability; and finally, the lack of flexibility in calibrating probes of different types and sizes makes the operation complex and inefficient.
[0038] Based on the above description, the calibration device for a conductivity meter provided in an embodiment of the present application has a support platform that provides a stable support foundation, ensuring that the container and the calibration solution will not tilt or move during the calibration process, thereby ensuring a stable and reliable calibration process. The height-adjustable design of the support rod and the connecting rod allows the position of the clamp and the probe on the clamp to be precisely adjusted. On the one hand, the probe position can be controlled during each calibration, facilitating multi-point detection at different positions and improving calibration accuracy. On the other hand, the height-adjustable design facilitates the clamp to adapt to probes of conductivity meters of different types and sizes, thereby enhancing the applicability of the calibration device.
[0039] The following is a description with reference to the accompanying drawings.
[0040] like Figure 1 and Figure 2 As shown, the conductivity meter calibration device provided in the embodiment of the present application includes a support platform 100 , a support rod 200 , a connecting rod 300 and a clamping member 700 .
[0041] Among them, a container 900 is placed on the support platform 100, and the container 900 is filled with a calibration solution; the support rod 200 is arranged on the support platform 100, and the height of the support rod 200 is adjustable; the connecting rod 300 is connected to the free end of the support rod 200, and the end of the connecting rod 300 facing away from the support rod 200 is provided with a mounting seat 400, and the end of the mounting seat 400 facing the support platform 100 is connected to a lifting block 500, and the height of the lifting block 500 is adjustable at the mounting seat 400; the clamping member 700 is connected to the lifting block 500, and the clamping member 700 is used to clamp the probe 800 so as to place the probe 800 into the container 900.
[0042] Through the above settings, the calibration device of the conductivity instrument provided in the embodiment of the present application provides a stable foundation through the support platform 100, and the height-adjustable design of the support rod 200 and the connecting rod 300 enables precise adjustment of the position of the probe 800. The flexible design of the lifting block 500 and the clamping member 700 adapts to probes 800 of different types and sizes, ensuring that the probe 800 is stable and undisturbed during the calibration process, thereby improving the accuracy, stability, ease of operation and consistency of the calibration results, which is conducive to improving calibration efficiency.
[0043] In addition, when manually holding the container 900 to calibrate the conductivity meter, manually holding the probe 800 and the container 900 can easily cause the position of the probe 800 in the container 900 to change, and the probe 800 touches the wall of the container 900, which may cause damage or shorten the service life, and slight shaking and position changes of the hand will also affect the calibration accuracy. Since the calibration process of the conductivity meter in the embodiment of the present application is carried out on the support platform 100, the manual holding of the container 900 for calibration is eliminated. While the mechanized calibration operation ensures calibration accuracy, the operator only needs to simply adjust the position of the clamping member 700 to complete the calibration operation, which reduces the difficulty of operation.
[0044] In the embodiments of the present application, the conductivity instrument can refer to the conductivity instrument equipment in the relevant technology. The probe 800 of the conductivity instrument, that is, the conductivity electrode, is a key component for measuring the conductivity of the solution. Generally, the probe 800 includes a two-electrode probe 800 and a four-electrode probe 800. This is not absolutely limited in the embodiments of the present application. Figure 1 The probe 800 should also be connected to the conductivity instrument equipment with a wire harness. For ease of description, Figure 1 The wiring harness connection portion is not shown.
[0045] Furthermore, in the embodiment of the present application, container 900 may be a cup, such as a beaker, capable of holding a calibration solution as known in the art. The calibration solution is a standard solution with a known conductivity value, used to calibrate the conductivity instrument to ensure its measurement accuracy. Typically, the calibration solution includes potassium chloride solution or sodium chloride solution. By selecting calibration solutions of varying concentrations, conductivity calibration can be performed for different media.
[0046] In the embodiments of this application, the directional terms "upper" and "lower" are described with reference to the placement of the calibration device during actual calibration operations. For example, the calibration device is placed on a flat, horizontal table, with the support rod 200 perpendicular to the ground, and the probe 800 extends downwardly into the container 900 to perform calibration measurements. This is not repeated in other embodiments of this application.
[0047] In some embodiments, a guide plate 401 is configured at one end of the mounting base 400 facing the supporting platform 100 , and the lifting block 500 is slidably connected to the guide plate 401 . The guide plate 401 is provided with scale markings along its own guiding direction.
[0048] Exemplarily, a guide groove is provided on the guide plate 401, and the lifting block 500 is clamped and constrained in the guide groove, forming a sliding connection between the lifting block 500 and the guide plate 401. The guide groove extends along the length direction of the guide plate 401, and the scale mark is provided on one side of the guide groove for easy observation.
[0049] The lifting block 500 and the guide plate 401 may also be slidably connected in other ways. As an alternative embodiment, a threaded rod is provided on the guide plate 401, and the lifting block 500 is threadedly connected to the threaded rod. When the threaded rod is driven to rotate by an external force, the lifting block 500 performs a corresponding rising or falling action.
[0050] In the above embodiment, the lifting height of the lifting block 500 on the guide plate 401 can be adjusted manually or mechanically by connecting a motor component.
[0051] Here, by setting scale marks on the guide plate 401, the operator can accurately control the position of the lifting block 500, and then accurately control the depth of the probe 800 immersed in the solution. The scale marks ensure that the position of the probe 800 is consistent during each calibration process, thereby improving the repeatability and consistency of the calibration results and ensuring the overall accuracy of multiple calibrations.
[0052] In addition, since the scale mark is directly related to the penetration depth of the probe 800 in the container 900, the scale mark provides an intuitive reference point for the operator, avoiding visual errors caused by the operator observing the depth of the probe 800 in the container 900 with the naked eye.
[0053] like Figure 1 and Figure 2 As shown, in some embodiments, the lifting block 500 is connected to a rotating base 501, which is configured to rotate circumferentially; the rotating base 501 is configured with a protruding mounting plate 502 at one end facing the support platform 100, and the clamping member 700 is connected to the mounting plate 502 and extends in a horizontal direction.
[0054] The rotating seat 501 in the above embodiment can be rotated by a motor. In addition to motor drive, the circumferential rotation of the rotating seat 501 can also be achieved by other means, such as manual adjustment (through knobs, handwheels, etc.), pneumatic or hydraulic drive, etc. There is no absolute limitation on this in the embodiments of the present application.
[0055] The clamping member 700 in the embodiment of the present application is mounted on the mounting plate 502 of the rotating base 501 . The rotating base 501 drives the clamping member 700 to rotate synchronously during the rotation process, so that the probe 800 clamped by the clamping member 700 is displaced.
[0056] By providing a rotating base 501 that can rotate circumferentially, it is possible to easily control the horizontal position of the probe 800 in the container 900, and to achieve calibration of the probe 800 at different points in the container 900. The operator can rotate and adjust the position of the probe 800 by operating the rotating base 501, thereby simplifying the positioning process of the probe 800 and eliminating the need for manual adjustment. This is also beneficial for preventing the probe 800 from touching the wall of the container 900 and damaging the probe 800.
[0057] In the above embodiment, the clamping member 700 is connected to the mounting plate 502 and extends in the horizontal direction. The probe 800 is horizontally clamped by the clamping member 700, which helps to increase the stability of the clamping member 700, especially during the process of inserting or removing the probe 800 from the solution, which can reduce shaking and displacement; in addition, the horizontal extension design allows the operator to more easily observe the position and status of the probe 800, reduces the risk of accidental collision of the probe 800, and protects the probe 800 from damage.
[0058] In some embodiments, the clamping member 700 is a pneumatic clamp, which can be a pneumatic clamp component in the related art. The pneumatic clamp is used to clamp the contact end surface of the probe 800 and is provided with an insulating layer.
[0059] Here, further, the pneumatic gripper can form a low thermal conductivity ceramic coating on its surface through spraying or coating technology, and the ceramic coating has low thermal conductivity and electrical insulation. Alternatively, the clamping claw part of the pneumatic gripper is made of a low thermal conductivity plastic material. As long as the low thermal conductivity and electrical insulation properties of the clamping part 700 can be maintained, the embodiments of the present application do not make absolute limitations on this.
[0060] Providing a low thermal conductivity insulating layer on the pneumatic gripper can make the pneumatic gripper act as a thermal insulator, prevent heat conduction between the pneumatic gripper and the probe 800, keep the temperature of the probe 800 stable, and improve the accuracy and consistency of measurement and calibration.
[0061] It should be noted that in the embodiment of the present application, the length of the connecting rod 300 is adjustable, the height of the support rod 200 is adjustable, and the height of the lifting block 500 on the mounting base 400 is adjustable. Therefore, after the clamping member 700 clamps the probe 800, the position of the probe 800 can be adjusted by adjusting the positions of the connecting rod 300, the support rod 200 and the lifting block 500, thereby precisely controlling the position and depth of the probe 800 to ensure that the probe 800 can be accurately placed in the calibration solution. Since the position and depth of the probe 800 can be precisely controlled, each calibration can be performed under the same conditions, thereby improving the repeatability and consistency of the calibration results.
[0062] In addition, the adjustable length of the connecting rod 300 and the adjustable height of the support rod 200 can facilitate adaptation to probes 800 of different sizes, allowing the operator to adjust the probe 800 to a suitable position more conveniently and quickly.
[0063] In the above embodiments, the length adjustment of the connecting rod 300 and the height adjustment of the support rod 200 can be achieved by motor linear drive or hydraulic and pneumatic linear drive, which will not be described in detail in the embodiments of the present application.
[0064] like Figure 3As shown, in some embodiments, the support platform 100 is provided with auxiliary fixing components, which fix the container 900 on the support platform 100 .
[0065] Specifically, the auxiliary fixing component includes two clamping plates 600 arranged opposite to each other. The clamping plates 600 are slidably provided on the supporting platform 100 , and the container 900 is clamped between the two clamping plates 600 .
[0066] In the above embodiment, one end of the splint 600 close to the support platform 100 is bent to provide an auxiliary flange 601, and a positioning piece 602 is passed through the auxiliary flange 601; under the action of external force, the positioning piece 602 passes through the auxiliary flange 601 and presses against the support platform 100 to fix the splint 600.
[0067] Depend on Figure 3 It can be seen that the auxiliary flange 601 of the splint 600 in the embodiment of the present application is at a right angle to the splint 600. This design enables the auxiliary flange 601 to form surface contact with the support platform 100, ensuring stable sliding of the splint 600 on the support platform 100.
[0068] Furthermore, the aforementioned positioning member 602 can be a bolt, which is threaded through the auxiliary flange 601. When the positioning member 602 is screwed into the auxiliary flange 601, the threaded force of the positioning member 602 presses against the support platform 100, preventing the clamping plate 600 from sliding further on the support platform 100. When the positioning member 602 is loosened, it is detached from the support platform 100, allowing the clamping plate 600 to resume its sliding connection with the support platform 100.
[0069] like Figure 3 As shown, in some embodiments, a slide groove 101 is provided on the support platform 100, and a clamping block 603 is constructed at the lower part of the auxiliary flange 601, and the clamping block 603 extends into the slide groove 101 to form a sliding connection of the splint 600 on the support platform 100; wherein, the clamping block 603 is perpendicular to the auxiliary flange 601 and protrudes toward one side of the splint 600.
[0070] In the above embodiment, the block 603 and the splint 600 are staggered to form a step, and the two intersect with each other in a cross shape. Since the block 603 is arranged vertically relative to the auxiliary flange 601, when the block 603 extends into the slide groove 101, the auxiliary flange 601, the block 603 and the splint 600 cooperate with each other to form a snap connection with the support platform 100, ensuring that the splint 600 is upright on the support platform 100. It can be seen that the auxiliary flange 601, on the one hand, plays a role in locking or unlocking the displacement of the splint 600, and on the other hand, it can also enhance the upright stability of the splint 600 and prevent the splint 600 from tilting.
[0071] In some embodiments, the splint 600 can be constructed to fit the arc shape of the container 900, or other numbers of splints 600 can be provided. The shape and number of the splint 600 can be flexibly set and are not absolutely limited in the embodiments of the present application.
[0072] In the embodiment of the present application, by providing an auxiliary fixing component, the container 900 can be effectively prevented from moving or tipping over during the calibration process, ensuring the stable position of the container 900 and the calibration solution, thereby improving the stability and reliability of the calibration. In addition, compared with the operator manually holding the container 900, using the auxiliary fixing component to fix the container 900 can ensure that the conditions of the probe 800 of the conductivity instrument are consistent during each calibration process, thereby reducing human errors caused by the operator adjusting the position of the container 900.
[0073] An exemplary usage process of the conductivity meter calibration device according to the embodiment of the present application is as follows:
[0074] First, select a calibration solution of standard concentration, which is usually a solution with a known conductivity value, and clean the probe 800 of the conductivity meter. Then, place the container 900 containing the calibration solution on the support platform 100 and use auxiliary fixing components to fix the container 900 in place.
[0075] Next, according to the height of the container 900 and the calibration requirements, adjust the positions of the support rod 200 and the connecting rod 300 so that the clamping member 700 is close to the top of the container 900, use the clamping member 700 to clamp the probe 800 of the conductivity instrument, and adjust the lifting block 500 and the rotating seat 501 so that the contact end surface of the probe 800 is completely immersed in the calibration solution.
[0076] Open the immersion calibration mode of the conductivity meter and calibrate the conductivity meter.
[0077] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the utility model disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, and the true scope and spirit of the present application are indicated by the following claims.
[0078] It should be understood that the present application is not limited to the exact structure described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.
Claims
1. A conductivity meter calibration device, characterized in that: The conductivity instrument includes a probe (800), and the calibration device includes: A supporting platform (100), wherein a container (900) is placed on the supporting platform (100), and the container (900) contains a calibration solution; A support rod (200) is provided on the support platform (100), and the height of the support rod (200) is adjustable; A connecting rod (300) is connected to the free end of the support rod (200); an end of the connecting rod (300) facing away from the support rod (200) is provided with a mounting seat (400); an end of the mounting seat (400) facing the support platform (100) is connected to a lifting block (500); and the height of the lifting block (500) on the mounting seat (400) is adjustable; A clamping member (700) is connected to the lifting block (500), and the clamping member (700) is used to clamp the probe (800) so as to place the probe (800) into the container (900).
2. The conductivity meter calibration device according to claim 1, characterized in that: A guide plate (401) is constructed at one end of the mounting seat (400) facing the supporting platform (100), the lifting block (500) is slidably connected to the guide plate (401), and the guide plate (401) is provided with scale markings along its own guiding direction.
3. The conductivity meter calibration device according to claim 1, characterized in that: The lifting block (500) is connected to a rotating seat (501), and the rotating seat (501) is configured to rotate in a circumferential direction; A protruding mounting plate (502) is constructed on one end of the rotating seat (501) facing the supporting platform (100), and the clamping member (700) is connected to the mounting plate (502) and extends in a horizontal direction.
4. The conductivity meter calibration device according to claim 1, characterized in that: The clamping member (700) is a pneumatic clamping jaw.
5. The conductivity meter calibration device according to claim 4, characterized in that: An insulating layer is provided on the contact end surface of the pneumatic clamping jaw for clamping the probe (800).
6. The conductivity meter calibration device according to any one of claims 1 to 5, characterized in that: The supporting platform (100) is provided with an auxiliary fixing component, and the auxiliary fixing component fixes the container (900) on the supporting platform (100).
7. The conductivity meter calibration device according to claim 6, characterized in that: The auxiliary fixing component comprises two clamping plates (600) arranged opposite to each other. The clamping plates (600) are slidably arranged on the supporting platform (100), and the container (900) is clamped between the two clamping plates (600).
8. The conductivity meter calibration device according to claim 7, characterized in that: One end of the clamping plate (600) close to the supporting platform (100) is bent to form an auxiliary flange (601), and a positioning piece (602) is passed through the auxiliary flange (601); Under the action of external force, the positioning member (602) passes through the auxiliary flange (601) and presses against the supporting platform (100) to fix the clamping plate (600).
9. The conductivity meter calibration device according to claim 8, characterized in that: A slide groove (101) is provided on the support platform (100), and a clamping block (603) is constructed at the lower portion of the auxiliary flange (601), and the clamping block (603) extends into the slide groove (101) to form a sliding connection between the clamping plate (600) and the support platform (100); The clamping block (603) is perpendicular to the auxiliary flange (601) and protrudes toward one side of the splint (600).
10. The conductivity meter calibration device according to any one of claims 1 to 5, characterized in that: The length of the connecting rod (300) is adjustable.