An organic liquid pipetting device for testing

Abstract

The utility model discloses an organic liquid pipetting device for testing, comprising a vertically arranged support plate, a first support frame for placing a large container bottle and a second support frame for placing a small container bottle, wherein the first support frame is rotatably arranged on the support plate, and the second support frame is movably arranged on the support plate, and a rotating motor for driving the first support frame to rotate and a driving motor for driving the second support frame to move are arranged on the side of the support plate opposite to the first support frame; the pipetting device of the utility model has the characteristics of convenient, safe and accurate operation, and can ensure that each transfer can be carried out accurately through the precise control of the mechanical device, and the device realizes the rapid and quantitative transfer of tetrahydrofuran, greatly reduces the labor intensity of operators, improves work efficiency, and avoids the time-consuming and labor-intensive shortcomings of traditional transfer methods.

Description

Technical Field

[0001] The utility model belongs to the technical field of organic liquid testing, and particularly relates to an organic liquid pipetting device for testing. Background Art

[0002] As a polymer compound, the molecular weight of polycarbosilane has an important influence on its properties and applications. Measuring the molecular weight of polycarbosilane is crucial to understanding its molecular distribution and dispersion in practical applications. Therefore, testing its molecular weight and molecular distribution is one of the important parameters; the current traditional test uses gel chromatography to test the molecular weight and distribution of polycarbosilane, that is, polycarbosilane is separated by tetrahydrofuran as a solvent; because the test often requires tetrahydrofuran for sample preparation, part of the purchased large bottle needs to be taken out and filled into a small bottle for sample preparation. If the purchased small bottle does not have enough liquid when the equipment is eluted, it will affect the test, so a special device is needed to realize tetrahydrofuran pipetting.

[0003] Due to the large amount of equipment testing, the existing tetrahydrofuran usually uses a larger container bottle as a container, but when using the sample solution for testing, a smaller container bottle is needed to facilitate sample preparation; during testing, it is necessary to take part of the tetrahydrofuran from the large container bottle into the small container bottle to maintain the consistency of the solvent. However, the large container bottle of tetrahydrofuran has a certain weight, which is inconvenient for inspectors with weak strength to operate during the transfer process. In addition, tetrahydrofuran has a strong smell and may damage the respiratory system. During the transfer process, in order to protect the health of the inspectors, they need to wear a gas mask, which increases the complexity of the operation.

[0004] To solve these problems, it is necessary to design and develop a dedicated pipetting device for the transfer of tetrahydrofuran to ensure convenient, safe and accurate operation.

[0005] In view of this, the applicant conducted in-depth research on the above issues, which led to the present case. Utility Model Content

[0006] The utility model aims to provide an organic liquid pipetting device for testing which has a simple structure, convenient operation, safety and accuracy, and can transfer the organic liquid in a large container bottle to a small container bottle, so as to facilitate sample preparation during the testing process.

[0007] In order to achieve the above object, the utility model adopts the following technical solution:

[0008] The invention relates to an organic liquid pipetting device for testing, comprising a vertically arranged support plate, a first support frame for placing a large container bottle, and a second support frame for placing a small container bottle, wherein the first support frame and the second support frame are both located on the same side of the support plate, the first support frame is rotatably arranged on the support plate, and the second support frame is movably arranged on the support plate, the first support frame is provided with a first fixing component for fixing the large container bottle, the second support frame is provided with a second fixing component for fixing the small container bottle, a track groove for the movement of the second support frame is provided on the support plate, a rotating motor for driving the first support frame to rotate is provided on the side of the support plate opposite to the first support frame, a driving motor for driving the second support frame to move is provided on the side of the support plate opposite to the second support frame, and a general control end for controlling the coordinated operation of the rotating motor and the driving motor is also provided on the support plate, when the second support frame drives the small container bottle to move close to the large container bottle, the first support frame drives the large container bottle to rotate so that the bottle mouth of the small container bottle is aligned with the bottle mouth of the large container bottle.

[0009] Furthermore, the first support frame includes a first frame body and a first base fixed to the bottom of the first frame body, and the top of the first frame body is connected to the output end of the rotating motor.

[0010] Furthermore, the first fixing component on the first support frame is a first fixing clamp for fixing the bottle body of the large container bottle and a second fixing clamp for fixing the bottle mouth of the large container bottle, and one end of the first fixing clamp and the second fixing clamp are both fixed to the first frame.

[0011] Furthermore, the second support frame includes a second frame body and a second base fixed to the bottom of the second frame body, and the top of the second frame body is connected to the output end of the driving motor.

[0012] Furthermore, the second fixing component on the second support frame is a third fixing clamp for fixing the bottle body of the small container bottle, and one end of the third fixing clamp is fixed to the second frame.

[0013] Furthermore, the support plate is further provided with a limiting groove, in which a limiting rod for limiting the rotation range of the first support frame is slidably provided, and the limiting rod is arranged on the rotation path of the first support frame.

[0014] Furthermore, the second support frame is arranged to be inclined, and the mouth of the small container bottle is inclined toward the direction of the large container bottle.

[0015] Furthermore, it also includes a box body, the pipetting device is arranged in the box body, and the box body is provided with openable and closable ventilation windows on all sides.

[0016] By adopting the above-mentioned design scheme, the beneficial effects of the utility model are:

[0017] The liquid transfer device of the utility model has the characteristics of convenient, safe and accurate operation. Through the precise control of the mechanical device, the organic liquid in the large container bottle can be transferred to the small container bottle, which is convenient for sample preparation and use during the test process, and can ensure that each transfer can be carried out stably. The device realizes the rapid and quantitative transfer of tetrahydrofuran, greatly reduces the labor intensity of the operator, improves the work efficiency, and avoids the time-consuming and labor-intensive shortcomings of the traditional transfer method.

[0018] Furthermore, by providing a limiting groove and a limiting rod, the limiting rod is arranged on the rotation path of the first support frame to limit the rotation range of the first support frame, thereby preventing the first support frame from rotating too much and causing liquid in the large container bottle to gush out.

[0019] Furthermore, by arranging the liquid transfer device in the box, the risk of the operator directly inhaling tetrahydrofuran is effectively avoided, thereby ensuring the health and safety of the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Schematic diagram of the liquid transfer device of the present invention.

[0021] Figure 2 This is a schematic diagram of the liquid transfer device of the utility model being arranged in a box.

[0022] In the figure:

[0023] 1- support plate; 10- large container bottle;

[0024] 11-track groove; 12-rotating motor;

[0025] 13-driving motor; 14-limiting slot;

[0026] 15-limiting rod; 2-first supporting frame;

[0027] 20-small container bottle; 21-first frame;

[0028] 22-first base; 23-first fixing clamp;

[0029] 24-second fixing clamp; 3-second supporting frame;

[0030] 31-first frame; 32-second base;

[0031] 33-third fixing clamp; 4-general control end;

[0032] 5-box; 51-ventilation window. DETAILED DESCRIPTION

[0033] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] like Figure 1 to Figure 2 As shown, an organic liquid pipetting device for testing comprises a vertically arranged support plate 1, one side of the support plate 1 is provided with a first support frame 2 for placing a large container bottle 10 and a second support frame 3 for placing a small container bottle 20, the first support frame 2 is rotatably arranged on the support plate 1, so as to drive the large container bottle 10 to be dumped, and the second support frame 3 is movably arranged on the support plate 1, so as to drive the small container bottle 20 to move to the bottle mouth of the large container bottle 10, so that the organic liquid dumped from the large container bottle 10 can flow into the small container bottle 20; accordingly, a track groove 11 for the second support frame 3 to move is opened on the support plate 1, and a side of the support plate 1 opposite to the first support frame 2 is provided with a track groove 11 for driving the first support frame 3 to move. A rotating motor 12 is used to rotate the support frame 2, and a driving motor 13 for driving the second support frame 3 to move is provided on the side of the support plate 1 opposite to the second support frame 3. It should be noted that the small container bottle 20 preferably adopts an existing conventional container bottle with a transparent bottle body and scale lines on the outside, so that the operator can observe the total amount of liquid in the small container bottle 20 in real time. The rotating motor 12 and the driving motor 13 of the utility model can both adopt conventional stepping motors in the field, wherein the driving motor 13 can also be replaced by conventional components such as telescopic cylinders. A general control terminal 4 for controlling the coordinated operation of the rotating motor 12 and the driving motor 13 is also provided on the support plate 1. The general control terminal 4 can adopt an existing conventional method, such as PLC control.

[0035] Specifically, the first support frame 2 includes a first frame body 21 and a first base 22 fixed at the bottom of the first frame body 21. In the present embodiment, the first frame body 21 is L-shaped, that is, the first frame body 21 includes a cross bar and a vertical bar. The cross bar of the first frame body 21 is connected to the output end of the rotating motor 12, and the vertical bar of the first frame body 21 is connected to the first base 22. The second support frame 3 includes a second frame body 31 and a second base 32 fixed at the bottom of the second frame body 31. The top of the second frame body 31 is connected to the output end of the driving motor 13; preferably, the second frame body 31 and the second base 32 are both inclined so that the bottle mouth of the small container bottle 20 is inclined toward the direction of the large container bottle 10. Specifically, as Figure 1 and Figure 2As shown, the second frame 31 is inclined from top to bottom toward the first support frame 2, and the second base 32 is inclined from top to bottom toward the first support frame 2. This arrangement can facilitate the small container bottle 20 to receive the organic liquid poured out of the large container bottle 10.

[0036] The first support frame 2 is provided with a first fixing component for fixing the large container bottle 10, and the second support frame 3 is provided with a second fixing component for fixing the small container bottle 20. Preferably, in the present invention, the first fixing component on the first support frame 2 is a first fixing clamp 23 for fixing the bottle body of the large container bottle 10 and a second fixing clamp 24 for fixing the bottle mouth of the large container bottle 10, and the second fixing component on the second support frame 3 is a third fixing clamp 33 for fixing the bottle body of the small container bottle 20. One ends of the first fixing clamp 23 and the second fixing clamp 24 are both fixed to the first frame body 21, and the other ends can be adjusted and fixed to the bottle body and the bottle mouth of the large container bottle 10. One end of the third fixing clamp 33 is fixed to the second frame body 31, and the other end can be adjusted and fixed to the bottle body of the small container bottle 20. It should be noted that the first fixing clamp 23, the second fixing clamp 24 and the third fixing clamp 33 in the present invention can all adopt existing conventional stainless steel strong clamps, and the fixing method can adopt conventional methods in the field, such as welding or fixing by fasteners.

[0037] The working principle of the liquid transfer device of the utility model:

[0038] First, place the large container bottle 10 filled with tetrahydrofuran on the first base 22, fix the bottle body with the first fixing clamp 23, and fix the bottle mouth with the second fixing clamp 24, and double fix to prevent tipping; then place the cleaned small container bottle 20 on the second base 32, fix the bottle body with the third fixing clamp 33, start the drive motor 13, and move the second support frame 3 together with the small container bottle 20 to the position of the large container bottle 10 through the track groove 11; then the rotating motor 12 controls the first support frame 2 together with the large container bottle 10 to rotate clockwise, and then the drive motor 13 continues to drive the second support frame 3 together with the small container bottle 20 to approach and align with the bottle mouth of the large container bottle 10, and then The rear rotating motor 12 controls the large container bottle 10 to rotate slowly clockwise, so that the tetrahydrofuran liquid slowly flows from the large container bottle 10 into the small container bottle 20. During the liquid transfer, the operator can fine-tune the rotation amplitude of the rotating motor 12 and the moving distance of the driving motor 13 through the main control end, so that the bottle mouth of the small container bottle 20 can always be aligned with the bottle mouth of the large container bottle 10. When the liquid in the small container bottle 20 reaches the required scale, the rotating motor 12 is controlled to stop rotating through the main control end, and the driving motor 13 drives the small container bottle 20 and the second support frame 3 to move back to the original position through the track groove 11. The large container bottle 10 is slowly transferred counterclockwise to a horizontal state by the rotating motor 12, and the pipetting work is completed.

[0039] Furthermore, a limiting groove 14 is further provided on the support plate 1, and a limiting rod 15 is slidably provided in the limiting groove 14. The limiting rod 15 is arranged on the rotation path of the first support frame 2. The limiting rod 15 is arranged to limit the rotation amplitude of the first support frame 2 to prevent the first support frame 2 from rotating too much and causing the liquid in the large container bottle 10 to gush out. When in use, it is appropriate to set the limiting rod 15 at a position where the first support frame 2 is rotated nearly 90° clockwise from the bottom to the top (that is, the large container bottle 10 is rotated from a vertical position to a position close to a horizontal position); preferably, a fastener can be provided between the limiting rod 15 and the limiting groove 14 to adjust the position of the limiting rod 15 on the limiting groove 14, for example, a plurality of threaded holes with the same diameter are correspondingly provided on the limiting rod 15 and the limiting groove 14, and the position of the limiting rod 15 on the limiting groove 14 is adjusted by the cooperation of the bolt and the threaded hole; so that when the liquid capacity in the large container bottle 10 is small, the position of the limiting rod 15 can be adjusted accordingly, thereby adjusting the rotation amplitude of the second support frame 3.

[0040] Further, if Figure 2 As shown, since tetrahydrofuran has a strong smell, the liquid transfer device of the utility model can be surrounded by plates or glass to form a square closed box 5. It should be noted that the use of glass to surround the box 5 can facilitate the operator to observe the liquid transfer process. If a plate is used, it is necessary to open an observation window (not shown in the figure) on the box 5 for the operator to observe. The support plate 1 serves as the back plate of the box 5 (for the first support frame 2 and the second support frame 3 to be installed). The main control terminal 4 is arranged in front of the box 5, and openable and closable ventilation windows 51 are opened around the box 5. During the liquid transfer operation, the ventilation window 51 is closed. After the liquid transfer is completed, the ventilation window 51 is opened for natural ventilation. After a period of time, the smell will dissipate, and the operator can move the small container bottle 20 to the vicinity of the ventilation window by the driving motor 13, and take out the small container bottle 20 through the ventilation window to prevent the operator from directly inhaling the smell of tetrahydrofuran volatilized when the liquid transfer device is poured.

[0041] The liquid transfer device of the utility model has the characteristics of convenient operation, safety and stability. Through the precise control of the mechanical device, the organic liquid in the large container bottle can be transferred to the small container bottle, which is convenient for sample preparation and use during the test process, and can ensure that each transfer can be carried out accurately. The device realizes the rapid and quantitative transfer of tetrahydrofuran, greatly reduces the labor intensity of the operator, improves the work efficiency, and avoids the time-consuming and labor-intensive shortcomings of the traditional transfer method; by arranging the liquid transfer device in the box body 5, the risk of the operator directly inhaling tetrahydrofuran is effectively avoided, thereby ensuring the health and safety of the operator.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An organic liquid pipetting device for testing, characterized in that: The bottle holder is a first bottle holder which is a first part of a bottle holder and a second part of a bottle holder which is a second part of a bottle holder. The bottle holder is a second part of a bottle holder which is a second part of a bottle holder. The bottle holder is a second part of a bottle holder which is a second part of a bottle holder. The bottle holder is a second part of a bottle holder which is a second part of a bottle holder.

2. The organic liquid pipetting device for testing according to claim 1, characterized in that: The first support frame includes a first frame body and a first base fixedly arranged at the bottom of the first frame body, and the top of the first frame body is connected to the output end of the rotating motor.

3. The organic liquid pipetting device for testing according to claim 2, characterized in that: The first fixing component on the first support frame is a first fixing clamp for fixing the bottle body of the large container bottle and a second fixing clamp for fixing the bottle mouth of the large container bottle. One end of the first fixing clamp and the second fixing clamp are both fixed to the first frame.

4. The organic liquid pipetting device for testing according to claim 1, characterized in that: The second support frame includes a second frame body and a second base fixedly arranged at the bottom of the second frame body, and the top of the second frame body is connected to the output end of the driving motor.

5. The organic liquid pipetting device for testing according to claim 4, characterized in that: The second fixing component on the second support frame is a third fixing clamp used to fix the bottle body of the small container bottle, and one end of the third fixing clamp is fixed to the second frame body.

6. The organic liquid pipetting device for testing according to claim 1, characterized in that: The support plate is further provided with a limiting groove, in which a limiting rod for limiting the rotation range of the first support frame is slidably provided, and the limiting rod is arranged on the rotation path of the first support frame.

7. The organic liquid pipetting device for testing according to claim 4, characterized in that: The second support frame is arranged in an inclined manner, and the bottle mouth of the small container bottle is inclined toward the direction of the large container bottle.

8. The organic liquid pipetting device for testing according to claim 1, characterized in that: It also includes a box body, the liquid transfer device is arranged in the box body, and the box body is provided with openable and closable ventilation windows on all sides.

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