Row type titrator turntable liquid suction device

Abstract

The utility model provides a row type titrator turntable liquid suction device which comprises a row type lifting assembly, a plurality of liquid suction pipes, a row type turntable assembly and a plurality of solvent bottles, wherein a plurality of lifting modules which are arranged at equal intervals are arranged on a mounting platform of the row type lifting assembly; each lifting module is provided with a liquid suction pipe which is vertically arranged, and each liquid suction pipe is positioned above the corresponding solvent bottle; a station table plate with a plurality of station mounting holes is arranged above a supporting bottom plate of the row type rotating disc assembly, rotating disc mechanisms are mounted on the supporting bottom plate corresponding to the station mounting holes respectively, and a plurality of solvent bottles which are annularly arranged at intervals are arranged on a rotating base plate of each rotating disc mechanism.

Description

Technical Field

[0001] The utility model relates to a titrator for chemical experiments, in particular to a liquid suction device for a turntable of a row type titrator. Background Art

[0002] Titrimetric analysis is a commonly used analytical technique and also a chemical experiment operation. Currently, the commonly used titration test instrument is an automatic potentiometric titrator, which is a common analytical instrument for volumetric analysis designed based on the principle of potentiometry. The principle of potentiometry is: an appropriate indicator electrode and a reference electrode are selected to form a working battery with the solution to be measured. As the titrant is added, due to chemical reactions, the concentration of the ions to be measured changes continuously, and thus the potential of the indicator electrode changes accordingly. Near the titration end point, the concentration of the ions to be measured undergoes a sudden change, causing a sudden jump in the electrode potential. Therefore, the titration end point can be determined based on the sudden jump in the electrode potential.

[0003] The existing automatic potentiometric titrator uses a manual bottle placement method, that is, the solvent bottles are manually placed one by one under the liquid suction pipe for liquid suction or titration. This operation method is cumbersome, time-consuming and laborious, and the manual operation error is large and easy to make mistakes, seriously affecting the test efficiency of titrimetric analysis. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide a liquid suction device for a turntable of a row type titrator with high automation, simple and convenient operation, time-saving and labor-saving, and high positioning accuracy in view of the defects of the prior art.

[0005] The utility model adopts the following technical solutions to solve the above technical problems:

[0006] A liquid suction device for a turntable of a row type titrator includes a row type lifting assembly, a plurality of liquid suction pipes, a row type turntable assembly and a plurality of solvent bottles, wherein:

[0007] A plurality of lifting modules arranged at equal intervals are provided on the installation platform of the row type lifting assembly, and the vertically arranged liquid suction pipes are respectively installed on each of the lifting modules, and each of the liquid suction pipes is located above the corresponding solvent bottle;

[0008] Above the support bottom plate of the row type turntable assembly, a station table plate with a plurality of station installation holes is provided, and a turntable mechanism is respectively installed on the support bottom plate corresponding to each of the station installation holes, and a plurality of solvent bottles arranged at circular intervals are provided on the rotating chassis of each of the turntable mechanisms.

[0009] Preferably, the row type lifting assembly includes an installation platform and a first support frame, wherein:

[0010] The installation platform is in the shape of a long strip plate structure, and a number of vertically arranged first support frames are equidistantly installed at its bottom, and a number of vertically arranged lifting modules are equidistantly installed at its top.

[0011] Preferably, the lifting module includes a vertical plate, a top plate, a sliding table, a lead screw, a slider, a lifting arm and a driving motor, wherein:

[0012] The vertical plate is vertically installed on the installation platform, the top plate is installed at its top, and the vertically arranged sliding table is installed on its inner side wall;

[0013] The upper and lower ends of the lead screw are respectively rotatably installed on the top plate and the installation platform through bearings, and the slider is sleeved on the screw thread thereof;

[0014] The inner end of the slider is guidingly slidably installed on the sliding table, the outer end is connected to the lifting arm, and the outer end of the lifting arm is installed with the liquid suction pipe;

[0015] The driving motor is fixedly installed at the bottom of the installation platform, and its output shaft facing upward is connected to the lower end shaft of the lead screw.

[0016] More preferably, the lifting module further includes a support block and a limiting arm, wherein:

[0017] The inner end of the support block is fixedly installed on the sliding table, the outer end is connected to the limiting arm, and the liquid suction pipe is slidably installed in the hollow sleeve at the outer end of the limiting arm.

[0018] Preferably, the support bottom plate is in the shape of a long strip plate structure, a number of installation holes are equidistantly arranged thereon, and a number of vertically arranged second support frames are equidistantly installed at its bottom.

[0019] More preferably, the workbench plate is in the shape of a long strip plate structure, a number of workbench installation holes corresponding to the installation holes are equidistantly arranged thereon, and it is fixedly installed above the support bottom plate through connecting columns arranged at the four corners of the bottom.

[0020] Preferably, the turntable mechanism includes a rotating motor, a support column, a rotating chassis, wherein:

[0021] The rotating motor is fixedly installed at the bottom of the support bottom plate, and its output shaft extends upward through the installation hole to the position of the workbench installation hole;

[0022] The support column is installed at the top end of the output shaft of the rotating motor, and the rotating chassis arranged coaxially is fixedly installed at its bottom.

[0023] More preferably, the turntable mechanism further includes a limiting top plate, wherein:

[0024] A plurality of bottle body limiting holes for accommodating the solvent bottles are provided on the limiting top plate, and the bottle body limiting holes are arranged at equal intervals in a ring shape, and at least one of the bottle body limiting holes is located below the liquid suction pipe.

[0025] More preferably, the turntable mechanism further includes a central positioning column, wherein:

[0026] The central positioning column is bolt-mounted on the top end of the output shaft of the rotating motor through a screw hole at its bottom, and the periphery of its bottom is integrally connected with the rotating motor, the support column, the rotating chassis and the limiting top plate.

[0027] Preferably, there are four sets of lifting modules on the row-type lifting assembly, the liquid suction pipes, and the turntable mechanisms on the row-type turntable assembly, and they are arranged side by side from left to right.

[0028] The utility model adopts the above technical solutions, compared with the prior art, has the following technical effects:

[0029] The row-type titrator turntable liquid suction device provided by the utility model is composed of a plurality of sets of row-type arranged lifting assemblies, liquid suction pipes and turntable assemblies. Each turntable assembly is installed below the liquid suction pipe; and a station table plate with a plurality of station mounting holes is arranged above the support bottom plate of each turntable assembly, and a turntable mechanism is respectively installed on the support bottom plate corresponding to each station mounting hole. The turntable mechanism is driven by a motor, and a plurality of solvent bottles arranged at intervals in a circular ring shape are arranged on its rotating chassis. Each solvent bottle moves to the position below the liquid suction pipe as the turntable mechanism rotates, realizing the purpose of automatic continuous liquid suction or titration; the structure design of the turntable liquid suction device is novel, compact, has a high degree of automation, is simple and convenient to operate, saves time and effort, and the moving and positioning accuracy of the solution bottles is high, ensuring the efficient and smooth progress of titration analysis. Brief Description of the Drawings

[0030] Figure 1 It is a three-dimensional structure schematic diagram of a row-type titrator turntable liquid suction device of the utility model;

[0031] Figure 2 It is a top view structure schematic diagram of a row-type titrator turntable liquid suction device of the utility model;

[0032] Figure 3 It is a front view structure schematic diagram of a row-type titrator turntable liquid suction device of the utility model;

[0033] Figure 4 It is a sectional view structure schematic diagram of a row-type titrator turntable liquid suction device of the utility model;

[0034] Figure 5 For the utility model Figure 4Schematic diagram of the partial enlarged structure of part A in the liquid suction device of the turntable of a row type titrator

[0035] Figure 6 Schematic side view structure diagram of the liquid suction device of the turntable of a row type titrator of the present utility model Specific embodiments

[0036] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0037] All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts belong to the scope of protection of the present utility model.

[0038] In some embodiments, as Figure 1 、 Figure 2 、 Figure 3 and Figure 4 shown, a liquid suction device of the turntable of a row type titrator is provided. The device mainly includes a row type lifting assembly 100, a plurality of liquid suction tubes 200, a row type turntable assembly 300 and a plurality of solvent bottles 400, which are arranged side by side as a whole to form independent titration test mechanisms spaced from each other. Preferably, there are four sets of lifting modules on the row type lifting assembly 100, the liquid suction tubes 200, and the turntable mechanisms on the row type turntable assembly 300, which are arranged side by side from left to right.

[0039] Specifically, a plurality of lifting modules arranged at equal intervals are provided on the installation platform 101 of the row type lifting assembly 100, and the lifting modules adopt electric screw sliding modules. Each of the lifting modules is respectively installed with the vertically arranged liquid suction tube 200, and each of the liquid suction tubes 200 is located above the corresponding solvent bottle 400. The lifting module can drive the liquid suction tube 200 to move up and down, so as to insert the lower end of the liquid suction tube 200 downward into the solvent bottle 400, or move upward to extract it from the solvent bottle 400.

[0040] The row type turntable assembly 300 adopts a specific structural design. A station table plate 304 with a plurality of station mounting holes 305 is provided above the support bottom plate 301, and a turntable mechanism is respectively installed on the support bottom plate 301 corresponding to each of the station mounting holes 305. A plurality of the solvent bottles 400 arranged at circular intervals are provided on the rotating chassis 308 of each turntable mechanism. The turntable mechanism can drive the placed solvent bottles to rotate circumferentially, so as to rotate each solvent bottle 400 one by one to the position below the liquid suction tube 200.

[0041] In some of these embodiments, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 6 shown, the row - type lifting assembly 100 includes an installation platform 101 and a plurality of first support frames 102. The installation platform 101 is a long - strip plate - like structure, and a plurality of vertically arranged first support frames 102 are equidistantly and spacedly installed at its bottom, and a plurality of vertically arranged lifting modules are equidistantly and spacedly installed at its top. The plurality of first support frames 102 are support columns, serving the purpose of supporting the installation platform 101.

[0042] Specifically, each of the lifting modules includes a vertical plate 103, a top plate 104, a sliding table 105, a lead screw 106, a slider 107, a lifting arm 110, and a driving motor 109. The vertical plate 103 is vertically installed on the installation platform 101, the top plate 104 is installed at its top, and the sliding table 105 arranged vertically is installed on its inner side wall; the upper and lower ends of the lead screw 106 are respectively rotatably installed on the top plate 104 and the installation platform 101 through bearings, and the slider 107 is threadedly sleeved thereon.

[0043] The inner end of the slider 107 is guidingly slidably installed on the sliding table 105, the outer end is connected to the lifting arm 110, and the outer end of the lifting arm 110 is installed with the liquid suction pipe 200; the driving motor 109 is fixedly installed at the bottom of the installation platform 101, and its upward - facing output shaft is shaft - connected to the lower end of the lead screw 106.

[0044] During use, starting the driving motor 109 can synchronously drive the lead screw 106 to rotate. When the lead screw 106 rotates, it synchronously drives the slider 107 installed thereon to move up and down, and then drives the lifting arm 110 on the slider 107 and the liquid suction pipe 200 installed at the outer end of the lifting arm 110 to move up and down.

[0045] In addition, the lifting module further includes a support block 108 and a limiting arm 111. The inner end of the support block 108 is fixedly installed on the sliding table 105, the outer end is connected to the limiting arm 111, and the liquid suction pipe 200 is slidably installed in the hollow sleeve at the outer end of the limiting arm 111. The support block 108 and the limiting arm 111 are mainly used to support and limit the liquid suction pipe 200, avoiding the deviation of the liquid suction pipe 200 during the up - and - down movement, thus ensuring the stable progress of the liquid suction or titration process.

[0046] Such as Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the support base plate 301 is a long strip-shaped plate structure, on which a number of mounting holes 302 are equidistantly spaced. A turntable mechanism is correspondingly installed in each mounting hole 302, and a number of vertically arranged second support frames 303 are equidistantly spaced at the bottom thereof. The second support frames 303 support the support base plate 301.

[0047] The station table plate 304 is a long strip-shaped plate structure, which is correspondingly installed above the support base plate 301. A number of station mounting holes 305 corresponding to the mounting holes 302 are spaced at intervals thereon. The station mounting holes 305 are used to place each solvent bottle 400. The station table plate 304 is fixedly installed above the support base plate 301 through connecting columns arranged at the four corners of the bottom, ensuring the structural stability of the station table plate 304 during use.

[0048] In some embodiments, such as Figure 3 、 Figure 4 、 Figure 5 and Figure 6 As shown, the turntable mechanism mainly includes a rotary motor 306, a support column 307, and a rotary chassis 308. The rotary motor 306 is fixedly installed at the bottom of the support base plate 301, and its output shaft extends upward through the mounting hole 302 to the position of the station mounting hole 305. The support column 307 is installed at the top end of the output shaft of the rotary motor 306, and the rotary chassis 308 arranged coaxially is fixedly installed at its bottom. By starting the rotary motor 306, the rotary chassis 308 can be driven to rotate synchronously through its output shaft, and then drive the solvent bottles 400 placed on the rotary chassis 308 to rotate.

[0049] In addition, the turntable mechanism further includes a limit top plate 309. A number of bottle body limit holes for accommodating the solvent bottles 400 are arranged at equal intervals in a ring shape on the limit top plate 309, and at least one of the bottle body limit holes is located below the liquid suction pipe 200. The limit top plate 309 rotates synchronously with the rotary chassis 308, and is used to limit the solvent bottles 400 to ensure that each solvent bottle can keep in sync with the rotary chassis 308, improving the accuracy of the movement and positioning of the solvent bottles 400.

[0050] In some embodiments, such as Figure 5 and Figure 6 As shown, the turntable mechanism further includes a center positioning column 310. The center positioning column 310 is bolted to the top end of the output shaft of the rotary motor 306 through a screw hole at its bottom, and the periphery of its bottom is connected to the rotary motor 306, the support column 307, the rotary chassis 308, and the limit top plate 309 into an integral structure.

[0051] Refer to Figure 1 、 Figure 2 、Figure 3 and Figure 4 As shown in Figure 4 , the working principle of the liquid suction device of the row-type titrator turntable is as follows: The liquid suction tube 200 is located at the highest point through the row-type lifting assembly 100. Manually place each solvent bottle 400 on the corresponding rotating chassis 308. Then start the rotating motor 306 on the turntable mechanism to control the rotation of the rotating chassis 308 to rotate the corresponding solvent bottle 400 to the position below the liquid suction tube 200. Then start the drive motor 109 on the row-type lifting assembly 100, and synchronously drive the liquid suction tube 200 to move downward into the solution bottle 400 for liquid suction through the lead screw 106 and the slide table 105. After the liquid suction is completed, synchronously drive the liquid suction tube 200 to move upward through the drive motor 109. Repeat the above steps to suck liquid or titrate each solvent bottle 400 to achieve the purpose of automatic continuous liquid suction or titration. The structure of this turntable liquid suction device is novel and compact, with a high degree of automation, simple and convenient operation, time-saving and labor-saving, and high accuracy in the movement and positioning of the solution bottle, ensuring the efficient and smooth progress of titration analysis.

[0052] Finally, the following points should be noted: First, in the description of this application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense, which can be mechanical connection or electrical connection, or the communication inside two components, and can be directly connected. "Up", "down", "left", "right", etc. are only used to represent the relative position relationship. When the absolute position of the object being described changes, the relative position relationship may change;

[0053] Second, in the attached drawings of the disclosed embodiments of the present utility model, only the structures related to the disclosed embodiments of the present disclosure are involved. Other structures can refer to the general design. Without conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0054] Finally, the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A pipetting device for a turntable of a row type titrator, characterized in that, It includes a row - type lifting assembly, several liquid suction tubes, a row - type turntable assembly, and several solvent bottles, where: On the installation platform of the row - type lifting assembly, several lifting modules are arranged at equal intervals. Each of the lifting modules is respectively installed with the vertically arranged liquid suction tubes, and each of the liquid suction tubes is located above the corresponding solvent bottle; Above the support bottom plate of the row - type turntable assembly, there is a workbench plate with several station mounting holes. And on the support bottom plate corresponding to each of the station mounting holes, a turntable mechanism is respectively installed. On the rotating chassis of each turntable mechanism, several solvent bottles are arranged at circular intervals; 2. The pipetting device for the row type titrator turntable according to claim 1, characterized in that, The row - type lifting assembly includes an installation platform and a first support frame, where: The installation platform is a long - strip plate - like structure. Several vertically arranged first support frames are installed at equal intervals at its bottom, and several vertically arranged lifting modules are installed at equal intervals at its top; 3. The row type titrator turntable liquid suction device according to claim 2, characterized in that, The lifting module includes a vertical plate, a top plate, a sliding table, a lead screw, a slider, a lifting arm, and a driving motor, where: The vertical plate is vertically installed on the installation platform. The top plate is installed at its top, and the vertically arranged sliding table is installed on its inner side wall; The upper and lower ends of the lead screw are respectively rotatably installed on the top plate and the installation platform through bearings, and the slider is thread - sleeved on it; The inner end of the slider is guidingly slidably installed on the sliding table, the outer end is connected to the lifting arm, and the outer end of the lifting arm is installed with the liquid suction tube; The driving motor is fixedly installed at the bottom of the installation platform, and its upward - facing output shaft is connected to the lower end shaft of the lead screw; 4. The pipetting device for the row-type titrator turntable according to claim 3, characterized in that, The lifting module also includes a support block and a limiting arm, where: The inner end of the support block is fixedly installed on the sliding table, the outer end is connected to the limiting arm, and the liquid suction tube is slidably installed in the hollow sleeve at the outer end of the limiting arm; 5. The pipetting device for the row type titrator turntable according to claim 1, wherein The support bottom plate is a long - strip plate - like structure. Several installation holes are opened at equal intervals on it, and several vertically arranged second support frames are installed at equal intervals at its bottom; 6. The row type titrator turntable liquid suction device according to claim 5, characterized in that, The workbench plate is a long - strip plate - like structure. Several station mounting holes corresponding to the installation holes are spaced apart on it, and it is fixedly installed above the support bottom plate through connecting columns arranged at the four corners of the bottom; 7. The row type titrator turntable liquid suction device according to claim 1, characterized in that, The turntable mechanism includes a rotating motor, a support column, and a rotating chassis, where: The rotating motor is fixedly installed at the bottom of the support bottom plate, and its output shaft extends upward through the installation hole to the position of the station mounting hole; The support column is installed at the top end of the output shaft of the rotating motor, and the co - axially arranged rotating chassis is fixedly installed at its bottom; 8. The multi-row titrator turntable liquid suction device according to claim 7, wherein, The turntable mechanism also includes a limiting top plate, where: On the limiting top plate, several bottle body limiting holes for accommodating the solvent bottles are arranged at circular equal intervals, and at least one of the bottle body limiting holes is located below the liquid suction tube; 9. The pipetting device for the row type titrator turntable according to claim 8, characterized in that, The turntable mechanism also includes a central positioning column, where: The central positioning column is bolt-mounted on the top end of the output shaft of the rotary motor through a screw hole at its bottom, and the periphery of its bottom is integrally connected with the rotary motor, the support column, the rotary chassis and the limit top disc.

10. The row type titrator turntable liquid suction device according to claim 1, characterized in that, There are four sets each of the lifting modules on the row-type lifting assembly, the liquid suction pipe, and the turntable mechanism on the row-type turntable assembly, which are arranged side by side from left to right.

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