CN219201446U - Acidimeter verification calibration appurtenance - Google Patents

Abstract

The utility model discloses an acidometer verification and calibration auxiliary tool, which comprises a table top seat plate, a turntable seat and a plurality of rotary drum seats for placing beakers, wherein the turntable seat is arranged on the table top seat plate in a rotating fit manner, and a miniature servo motor for driving the turntable seat to rotate is fixedly arranged at the lower end of the table top seat plate; the upper ends of the turntable seats are rotatably matched with a plurality of turntable seats, and the lower ends of the turntable seats are fixedly provided with rotary driving motors for driving the turntable seats to rotate back and forth; the end part of the table top seat board is fixedly provided with a support seat, the support seat is fixedly provided with a lifting driving mechanism, and the driving end of the lifting driving mechanism is provided with a chuck for clamping the acidity detection probe. The whole process of calibrating the acidity detection probe does not need manual operation basically, is convenient to operate and use, and is beneficial to improving the calibration efficiency.

Description

Acidimeter verification calibration appurtenance

Technical Field

The utility model relates to the technical field of acidometer verification and calibration, in particular to an acidometer verification and calibration auxiliary tool.

Background

An acidometer (also called a pH meter) is an instrument for accurately measuring the concentration of a certain particle in a target solution, and mainly comprises electrodes and a potential difference measuring part. When a hydrogen ion selective electrode is selected, the pH of the solution can be measured, and the main structure of the acidometer generally includes an electrode (acidometer probe), an electrode holder, a housing, a display screen, and a keyboard. In performing the calibration of an acidometer, it is generally necessary to prepare a pH4.00 standard buffer, a pH6.86 standard buffer, a pH9.18 standard buffer, and distilled water. The specific verification and calibration steps are as follows: firstly, manually taking down an acidity detection probe from a taking-down electrode frame, cleaning the acidity detection probe by distilled water, and then, sucking and cleaning water on the acidity detection probe by filter paper or filter cotton; and secondly, correcting, namely a 'one-point method' and a 'two-point method', wherein the 'one-point method' only needs one standard buffer solution, the cleaned acidity detection probe is inserted into a beaker containing the pH6.86 standard buffer solution, meanwhile, the beaker is also required to be manually rocked, the buffer solution is ensured to fully cover the acidity detection probe, the problem that the final correcting effect is affected due to small bubbles remained in the acidity detection probe is avoided, then, a correcting key on the acidometer is pressed, and the acidometer is corrected, so that the 'one-point method' is finished, the acidity detection probe is cleaned by distilled water, and the pH detection can be carried out on a target solution by sucking water on the acidity detection probe.

The two-point method uses two standard buffers to carry out verification and calibration, the calibration result is more accurate, the acidity detection probe is washed by distilled water after the positioning and calibration of the pH6.86 standard buffer is carried out, the water on the acidity detection probe is sucked dry, then the acidity detection probe is inserted into the pH4.00 standard buffer or the pH9.18 standard buffer, and then a calibration key on the acidometer is pressed to calibrate the acidometer, thereby completing the calibration of the two-point method.

At present, the verification and calibration process of the acidometer needs manual repeated participation operation, is required to be held by a worker, is not convenient enough in verification and calibration operation, and is low in calibration efficiency. Such as: chinese patent (issued publication number: CN213302083U, issued publication date: 2021.05.28) discloses an acidometer calibrating device, which is characterized in that an acidometer is clamped and fixed by a clamping device, a telescopic rod is arranged, the height of the telescopic rod is adjusted by a fastening bolt, and then the height of the acidometer is changed, so that the acidometer is convenient for a worker to measure. Obviously, when the acidometer is detected according to the scheme, the fastening bolt still needs to be manually rotated, and when the acidometer is cleaned, the acidometer detection probe still needs to be manually removed, distilled water is used for cleaning, and then filter paper or filter cotton is manually taken out, and water on the acidometer detection probe is sucked.

Disclosure of Invention

The utility model aims to provide an acidometer verification and calibration auxiliary tool for solving the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides an acidometer verification calibration appurtenance, includes mesa bedplate, carousel seat and a plurality of rotary drum seat that are used for placing the beaker, the carousel seat is installed to the normal running fit on the mesa bedplate, and mesa bedplate lower extreme fixed mounting has the miniature servo motor that is used for driving carousel seat rotation; the upper ends of the turntable seats are rotatably matched with a plurality of turntable seats, and the lower ends of the turntable seats are fixedly provided with rotary driving motors for driving the turntable seats to rotate back and forth; the end part of the table top seat board is fixedly provided with a support seat, the support seat is fixedly provided with a lifting driving mechanism, and the driving end of the lifting driving mechanism is provided with a chuck for clamping the acidity detection probe.

Preferably, the lifting driving mechanism comprises a lifting rack, a lifting servo motor, a screw rod and a sliding block seat, wherein the lower end of the lifting rack is fixedly connected with the bracket seat, the screw rod is rotatably arranged in the lifting rack, the lifting servo motor is fixedly arranged at the top end of the lifting rack, and the output end of the lifting servo motor is in driving connection with the end part of the screw rod; the vertical sliding fit of slider seat is installed in the lift frame, and the slider seat passes through screw-thread fit suit on the lead screw, is provided with the linking arm on the lateral wall of slider seat, chuck fixed mounting is in the linking arm tip. The lifting driving mechanism can control the lifting or descending of the acidity detection probe so that the acidity detection probe can be inserted into or separated from the beaker of the corresponding rotary drum seat.

Preferably, a rubber packing pad for packing the acidity detection probe is fixedly adhered to the clamping opening of the clamping head. The acidity detection probe is clamped by the elasticity of the rubber clamping pad, so that the rubber clamping pad is convenient to insert, put and detach.

Preferably, a driven gear ring is fixedly arranged on the lower end face of the turntable seat, and a driving gear is fixedly arranged at the output end of the miniature servo motor and is in meshed connection with the driven gear ring.

Preferably, the center of the lower end surface of the rotary drum seat is integrally extended with a bottom plug-in drum, and the output shaft end of the rotary driving motor is plugged and fixed in the bottom plug-in drum.

Preferably, the circumference outer wall of the rotary drum seat is fixedly provided with an inserting frame, and the inserting frame is inserted with a sign board for playing a role in marking and indicating. Through the identification effect of sign to the staff will hold the beaker that corresponds the article and insert and place in the revolving drum seat.

Preferably, the table top seat board also comprises a bottom cover shell, wherein the bottom cover shell is fixedly arranged at the lower end of the table top seat board.

Preferably, a main controller is installed in the bottom housing, at least one control key is installed on the table-board seat board, the control key is electrically connected with a signal input end of the main controller, and a signal output end of the main controller is electrically connected with signal input ends of the micro servo motor, the rotary driving motor and the lifting servo motor respectively.

Compared with the prior art, the utility model has the beneficial effects that:

1. the turntable seat can be driven to rotate around the table top seat plate through the miniature servo motor, so that the corresponding beaker is moved to the position right below the acidity detection probe;

2. the acidity detection probe can be inserted into or separated from the beaker corresponding to the rotary cylinder seat through the lifting driving mechanism;

3. the corresponding beaker can be driven to shake back and forth through the rotary driving motor, so that standard buffer solution in the beaker can be fully contacted with the acidity detection probe, distilled water in the beaker can be fully washed for the acidity detection probe, and filter cotton in the beaker can be used for adsorbing water adhered on the acidity detection probe so as to ensure the accuracy of calibration of an acidometer.

The whole process of calibrating the acidity detection probe does not need manual operation basically, is convenient to operate and use, and is beneficial to improving the calibration efficiency.

Drawings

FIG. 1 is a schematic perspective view of an acidometer calibration aid;

FIG. 2 is an enlarged schematic view of the structure of the acidometer calibration auxiliary tool A;

FIG. 3 is a schematic exploded perspective view of an acidometer calibration aid;

FIG. 4 is a schematic cross-sectional view of an acidometer calibration aid;

FIG. 5 is a schematic cross-sectional view of an acidometer calibration auxiliary tool after hiding the lifting drive mechanism;

FIG. 6 is a partially enlarged schematic view of the right end of FIG. 5 of an acidometer calibration aid.

In the figure: 100-acidometer, 101-electrode rack, 102-acidity detection probe, 200-beaker, 1-table-board seat board, 11-bottom cover, 12-one-point method verification key, 13-two-point method verification key, 2-turntable seat, 21-slewing bearing I, 22-slewing bearing II, 23-driven gear ring, 3-drum seat, 31-plug-in frame, 32-indicator, 33-rubber inner liner, 34-bottom plug-in cylinder, 4-lifting driving mechanism, 41-lifting servo motor, 42-lifting rack, 43-lead screw, 44-slider seat, 45-chuck, 451-rubber package clamp pad, 46-connecting arm, 5-miniature servo motor, 51-driving gear and 6-rotary driving motor.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-6, an acidometer calibration auxiliary tool comprises a table board seat board 1, a turntable seat 2 and a plurality of rotary drum seats 3 for placing beakers 200, wherein the turntable seat 2 is installed on the table board seat board 1 in a rotating fit manner, specifically, the lower end of the turntable seat 2 can be installed on the table board seat board 1 in a rotating fit manner through a slewing bearing 21, a micro servo motor 5 for driving the turntable seat 2 to rotate is fixedly installed at the lower end of the table board seat board 1, a driven gear ring 23 is fixedly installed at the lower end surface of the turntable seat 2, a driving gear 51 is fixedly installed at the output end of the micro servo motor 5, and the driving gear 51 is in meshed connection with the driven gear ring 23. When the turntable seat 2 is required to be rotated, the micro servo motor 5 is started, the output end of the micro servo motor 5 drives the driving gear 51 to rotate, and the rotating driving gear 51 can drive the driven gear ring 23 and the turntable seat 2 to rotate. Obviously, the center of the table top seat board 1 of the present embodiment is also provided with a center through hole, so as to avoid motion interference with other components.

In this embodiment, a plurality of rotary drum seats 3 are installed on the upper end of the rotary table seat 2 through a second slewing bearing 22 in a rotating fit manner, a rotary driving motor 6 for driving the rotary drum seat 3 to rotate back and forth is fixedly installed at the lower end of the rotary table seat 2, a bottom plug-in mounting cylinder 34 integrally extends in the center of the lower end face of the rotary drum seat 3, and the output shaft end of the rotary driving motor 6 is fixedly plugged in the bottom plug-in mounting cylinder 34. When the rotary drum seat 3 is required to rotate back and forth, the rotary driving motor 6 is started to rotate back and forth and rotate reversely, and the bottom cartridge 34 and the rotary drum seat 3 can be driven to rotate back and forth by the output end of the rotary driving motor 6. The rotary drum seat 3 can be rotated back and forth through the rotary driving motor 6, the rotary drum seat 3 which rotates back and forth can shake back and forth with the beaker 200 inserted in the rotary drum seat, so that standard buffer solution in the beaker 200 is fully contacted with the acidity detection probe 102, and the phenomenon that the verification and calibration effects are influenced due to the fact that bubbles remain in the acidity detection probe 102 is avoided. In addition, distilled water in the beaker 200 may be allowed to sufficiently wash the acidity detection probe 102.

A support seat 14 is fixedly arranged at the end part of the table top seat board 1, a lifting driving mechanism 4 is fixedly arranged on the support seat 14, and a clamping head 45 for clamping the acidity detection probe 102 is arranged at the driving end of the lifting driving mechanism 4. The raising and lowering of the acidity detection probe 102 can be controlled by the elevating driving mechanism 4 so that the acidity detection probe 102 can be inserted into or removed from the beaker 200 of the corresponding turret seat 3.

As a specific scheme, the lifting driving mechanism 4 includes a lifting frame 42, a lifting servo motor 41, a screw 43 and a slide block seat 44, wherein the lower end of the lifting frame 42 is fixedly connected with the frame seat 14, the screw 43 is rotatably installed in the lifting frame 42, the lifting servo motor 41 is fixedly installed at the top end of the lifting frame 42, and the output end of the lifting servo motor 41 is in driving connection with the end part of the screw 43;

the sliding block seat 44 is vertically and slidably mounted on the lifting frame 42, the sliding block seat 44 is sleeved on the screw rod 43 through threaded fit, the outer side wall of the sliding block seat 44 is provided with a connecting arm 46, and the clamping head 45 is fixedly mounted at the end part of the connecting arm 46.

The working principle of the lifting driving mechanism 4 is as follows: the lifting servo motor 41 is started, the lifting servo motor 41 rotates forward or reversely, the driving screw 43 rotates forward or reversely, the rotating screw 43 can drive the sliding block seat 44 to lift or descend along the lifting frame 42, and accordingly the chuck 45 and the acidity detection probe 102 clamped in the chuck 45 are driven to do lifting motion.

Obviously, in order to facilitate the stable clamping of the acidity detection probe 102, the rubber clamping pad 451 for clamping the acidity detection probe 102 is fixedly adhered to the clamping opening of the clamping head 45, and the acidity detection probe 102 is clamped by using the elasticity of the rubber clamping pad 451, so that the acidity detection probe is convenient to insert, place and detach. The chuck 45 has a relatively simple structural design, can realize stable clamping of the acidity detection probe 102, and is convenient for disassembling the acidity detection probe 102.

The turntable seat 2 can be driven to rotate around the table top seat board 1 by the miniature servo motor 5, so that the corresponding beaker 200 is moved to the position right below the acidity detection probe 102; the acidity detection probe 102 can be inserted into or separated from the beaker 200 of the corresponding rotary drum seat 3 through the lifting driving mechanism 4; the corresponding beaker 200 can be driven to shake back and forth through the rotary driving motor 6, so that standard buffer solution in the beaker 200 can be fully contacted with the acidity detection probe 102, distilled water in the beaker 200 can be fully washed by the acidity detection probe 102, and filter cotton in the beaker 200 can be enabled to adsorb water adhered on the acidity detection probe 102, so that the accuracy of verification and calibration of the acidimeter 100 is ensured. The whole process of calibrating the acidity detection probe 102 basically does not need manual operation, is convenient to operate and use, and is beneficial to improving the calibration efficiency.

In this embodiment, it is obvious that four rotating drum bases 3 are specifically provided, the rotating drum bases 3 are respectively inserted with a beaker 200, each beaker 200 is respectively used for containing a ph6.86 standard buffer solution, a ph9.18 standard buffer solution (or a ph4.00 standard buffer solution), distilled water and filter cotton, an inserting frame 31 is fixedly installed on the circumferential outer wall of the rotating drum base 3, an indication board 32 for playing a role of indication is inserted in the inserting frame 31, through the identification role of the indication board 32, so that a worker can insert the beaker 200 containing corresponding articles into the rotating drum base 3, and in order to facilitate the rotating drum base 3 to stably drive the beaker 200 to rotate, a rubber inner liner 33 for wrapping the outer wall of the beaker 200 is fixedly adhered in the circumferential inner wall of the rotating drum base 3.

The embodiment of the utility model also comprises a bottom housing 11, wherein the bottom housing 11 is fixedly arranged at the lower end of the table-board seat board 1. Specifically, a main controller is installed in the bottom housing 11, at least one control key is installed on the table-board seat board 1, the control key is electrically connected with a signal input end of the main controller, and a signal output end of the main controller is electrically connected with signal input ends of the micro servo motor 5, the rotary driving motor 6 and the lifting servo motor 41 respectively. The control keys may be provided with two specifically "one-point method" verification keys 12 and "two-point method" verification keys 13, respectively.

The working principle of the utility model is as follows: taking "one-point method" calibration as an example, the worker inserts the beaker 200 containing the ph6.86 standard buffer, the ph9.18 standard buffer (or the ph4.00 standard buffer), distilled water, and filter cotton into the corresponding drum base 3, respectively;

next, the worker removes the acidity detection probe 102 from the electrode holder 101 of the acidometer 100, places the acidity detection probe 102 on the chuck 45 of the present embodiment, turns on the acidometer, turns on the power supply of the calibration auxiliary device of the present embodiment, and then presses the "one-point method" calibration key 12;

after receiving the key signal, the main controller starts the micro servo motor 5, the beaker 200 containing distilled water is driven by the micro servo motor 5 to rotationally move to the position right below the acidity detection probe 102, then starts the lifting driving mechanism 4 to insert the acidity detection probe 102 into distilled water, then starts the rotary driving motor 6, the rotary driving motor 6 drives the beaker 200 to rotate, the swaying distilled water can sufficiently clean the acidity detection probe 102, and after the preset time of cleaning, the lifting driving mechanism 4 lifts the acidity detection probe 102;

then, the micro servo motor 5 is continuously started, the beaker 200 containing filter cotton is rotationally moved to be right below the acidity detection probe 102 under the driving of the micro servo motor 5, then the acidity detection probe 102 is inserted into the filter cotton by using the lifting driving mechanism 4 to suck water, and then the acidity detection probe 102 is lifted by the lifting driving mechanism 4;

then, the micro servo motor 5 is continuously started, the beaker 200 containing the pH6.86 standard buffer solution is driven by the micro servo motor 5 to rotate and move to the position right below the acidity detection probe 102, then the acidity detection probe 102 is inserted into the pH6.86 standard buffer solution by using the lifting driving mechanism 4, then the beaker 200 is driven by the rotation driving motor 6 to rotate, so that the pH6.86 standard buffer solution fully covers the acidity detection probe 102, and a worker presses a calibration key on the acidimeter to calibrate the acidimeter, thus the 'one-point method' calibration can be completed.

The whole process of calibrating the acidity detection probe basically does not need manual operation, and is convenient to operate and use.

In the present utility model, terms such as "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "side", "bottom", etc. refer to an orientation or a positional relationship based on that shown in the drawings, and are merely relational terms, which are used for convenience in describing structural relationships of various components or elements of the present utility model, and do not denote any one of the components or elements of the present utility model, and are not to be construed as limiting the present utility model.

Claims (8)

1. The utility model provides an acidometer verification calibration appurtenance, includes mesa bedplate (1), carousel seat (2) and a plurality of rotary drum seat (3) that are used for placing beaker (200), its characterized in that: the table top seat board (1) is provided with a turntable seat (2) in a rotating fit manner, and the lower end of the table top seat board (1) is fixedly provided with a miniature servo motor (5) for driving the turntable seat (2) to rotate;

a plurality of rotary cylinder seats (3) are mounted at the upper end of the rotary table seat (2) in a rotating fit manner, and a rotary driving motor (6) for driving the rotary cylinder seats (3) to rotate back and forth is fixedly arranged at the lower end of the rotary table seat (2);

the end part of the table top seat board (1) is fixedly provided with a bracket seat (14), the bracket seat (14) is fixedly provided with a lifting driving mechanism (4), and the driving end of the lifting driving mechanism (4) is provided with a clamping head (45) for clamping the acidity detection probe (102).

2. An acidometer verification calibration aid according to claim 1, wherein: the lifting driving mechanism (4) comprises a lifting frame (42), a lifting servo motor (41), a screw rod (43) and a sliding block seat (44), wherein the lower end of the lifting frame (42) is fixedly connected with the bracket seat (14), the screw rod (43) is rotatably arranged in the lifting frame (42), the lifting servo motor (41) is fixedly arranged at the top end of the lifting frame (42), and the output end of the lifting servo motor (41) is in driving connection with the end part of the screw rod (43);

the sliding block seat (44) is vertically installed on the lifting frame (42) in a sliding fit mode, the sliding block seat (44) is sleeved on the screw rod (43) in a threaded fit mode, the connecting arm (46) is arranged on the outer side wall of the sliding block seat (44), and the clamping head (45) is fixedly installed at the end portion of the connecting arm (46).

3. An acidometer verification calibration aid according to claim 2, wherein: a rubber packing clamp pad (451) for packing the acidity detection probe (102) is fixedly adhered to the clamping opening of the clamping head (45).

4. An acidometer verification calibration aid according to claim 1, wherein: the lower end face of the turntable seat (2) is fixedly provided with a driven gear ring (23), the output end of the miniature servo motor (5) is fixedly provided with a driving gear (51), and the driving gear (51) is in meshed connection with the driven gear ring (23).

5. An acidometer verification calibration aid according to claim 1, wherein: the bottom plug-in cylinder (34) integrally extends in the center of the lower end face of the rotary cylinder seat (3), and the output shaft end of the rotary driving motor (6) is fixedly plugged in the bottom plug-in cylinder (34).

6. An acidometer verification calibration aid according to claim 1, wherein: the rotary drum seat is characterized in that an inserting frame (31) is fixedly installed on the circumferential outer wall of the rotary drum seat (3), and a sign board (32) used for achieving the identification and indication functions is inserted into the inserting frame (31).

7. An acidometer verification calibration aid according to claim 1, wherein: the table top seat board also comprises a bottom cover shell (11), wherein the bottom cover shell (11) is fixedly arranged at the lower end of the table top seat board (1).

8. An acidometer calibration auxiliary tool according to claim 7 and wherein: the novel electric lifting table is characterized in that a main controller is arranged in the bottom housing (11), at least one control key is arranged on the table-board seat board (1), the control key is electrically connected with a signal input end of the main controller, and a signal output end of the main controller is electrically connected with signal input ends of the micro servo motor (5), the rotary driving motor (6) and the lifting servo motor (41) respectively.

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