Sample transfer workbench

Abstract

The utility model relates to a sample transfer workbench which comprises a supporting mechanism, a rotating mechanism and an inclining mechanism, the supporting mechanism comprises a supporting plate, a plurality of round holes are formed in the supporting plate, and the round holes reserve space for implementation of rotation and inclination actions; a first support and a second support are vertically arranged at the bottom of the supporting plate and are arranged in parallel. A plurality of volumetric flask holders are arranged in rows on the supporting plate. The utility model has the following advantages: 1, the beaker is driven by the rotating component to rotate to be matched with the spraying needle and the transfer needle to slowly spray and drop from the bottle mouth at the same time, so that a sample at the bottle mouth of the beaker can be dissolved and washed down from top to bottom; 2, the beaker is driven to incline by the inclined assembly, and rinsing liquid in the beaker can be gathered together, so that the liquid in the beaker can be completely transferred by the transfer needle; and 3, two hands of an experimenter are liberated, the experiment efficiency is improved, experiment errors are reduced, and the experiment accuracy is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of experimental instruments, in particular to a sample transfer workbench. Background Art

[0002] In biochemistry and other experiments, it's often necessary to dissolve a sample in a beaker and then transfer it to a volumetric flask to the desired concentration. Traditionally, the researcher holds the beaker in one hand and uses a wash bottle in the other to squeeze the liquid reagent from the beaker wall into the beaker, dissolving the sample multiple times. The dissolved and mixed liquid is then transferred to the volumetric flask via a stirring rod. This process needs to be repeated multiple times until the entire sample is transferred to the volumetric flask.

[0003] The existing problems are: 1. When the sample sticks to the wall of the cup, it is necessary to press the washing bottle to clean the inner wall of the beaker many times, and then transfer it to the volumetric flask many times. The process is complicated and time-consuming, requiring a lot of manpower and time, and the experimental efficiency is low; 2. When manually transferring samples, it is inevitable that liquid reagents will spill outside, or the beaker or volumetric flask with existing samples will be broken, or the stirring rod will flow out of the volumetric flask when transferring the reagent, causing the hard-earned samples to be wasted, thereby causing the experiment to fail. However, sometimes the samples are unique or very laborious or time-consuming to obtain. It is a pity that the hard-earned samples are damaged, causing the experiment to fail and the research results to disappear.

[0004] Therefore, a sample transfer workbench is designed to solve the above problems. Summary of the Invention

[0005] In order to overcome the above shortcomings, the utility model provides a sample transfer workbench, including a supporting mechanism, a rotating mechanism and a tilting mechanism;

[0006] The support mechanism includes a support plate with a plurality of circular holes formed thereon, the circular holes leaving space for the implementation of the rotation and tilting actions; a first bracket and a second bracket are vertically arranged at the bottom of the support plate, and the first bracket and the second bracket are arranged in parallel; a plurality of volumetric bottle holders are arranged in a row on the support plate;

[0007] The rotating mechanism includes a motor, the output shaft of the motor is connected to a pulley assembly, the pulley assembly is composed of a plurality of pairs of pulleys, and the pairs of pulleys are connected by belts; the central axis of the pulleys is a vertical rotating shaft, and two adjacent pairs of pulleys are connected by being coaxially arranged on the vertical rotating shaft, and the free end of the vertical rotating shaft is connected to a cup holder, and the number of the cup holders is the same as the number of the volumetric bottle holders;

[0008] The tilting mechanism includes a cylinder and a tiltable mounting plate, wherein the telescopic rod of the cylinder is hingedly connected to a handle through a connecting rod, a horizontal rotating shaft is provided on one side of the tiltable mounting plate, and the other end of the handle is connected to the horizontal rotating shaft. The cylinder can push the handle to rotate, and the handle drives the horizontal rotating shaft to rotate, and the horizontal rotating shaft drives the tiltable mounting plate to rotate; the tiltable mounting plate has an upper and lower double-layer structure, and the pulley assembly falls between the tiltable mounting plates;

[0009] Preferably, the sample transfer workbench further includes a switch control mechanism.

[0010] Preferably, the sample transfer workbench further comprises a translationally movable lifting frame, on which a spray needle and a transfer needle are provided, which are located above the beaker and the volumetric flask; the spray needle is externally connected to a liquid discharge pump, which is externally connected to a solvent bottle containing a rinse solution, and the lower end of the spray needle is covered with liquid outlets on its circumference, so that water mist can be sprayed from the circumference when the spray needle descends. When the rotating mechanism drives the beaker to rotate, the spray needle sprays liquid while descending, thereby cleaning the inner wall of the beaker from top to bottom; the transfer needle is externally connected to a liquid suction pump, and the transfer needle absorbs the liquid in the beaker into the volumetric flask;

[0011] Preferably, the switch control mechanism includes a trigger block, a first contact switch, and a second contact switch. The trigger block is a branch-shaped block. The trigger block and the horizontal rotating shaft are coaxially arranged and can rotate synchronously. When the horizontal rotating shaft rotates, the trigger block rotates along with the horizontal rotating shaft. When the trigger block triggers the first contact switch, the cup holder and the beaker are in a tilted state.

[0012] The telescopic rod of the cylinder drives the handle to rotate and descend to a horizontal position, and at the same time restores the tiltable mounting plate to a horizontal position; the trigger block rotates along the horizontal rotation axis, and when the trigger block triggers the second contact switch, the cup holder and the beaker are in a horizontal state.

[0013] Preferably, the first contact switch can be electrically connected to the liquid suction pump switch; the second contact switch can be electrically connected to the liquid discharge pump switch.

[0014] Preferably, four cup holders are provided, and four volumetric flask holders are provided.

[0015] Preferably, the translatably movable lifting frame can be independently provided through a support frame or integrated with the sample transfer workbench.

[0016] The beneficial effects of the utility model are:

[0017] The sample transfer workbench of the utility model has the following advantages:

[0018] 1. The rotating assembly drives the beaker to rotate and the spray needle and transfer needle are used to spray and drop slowly from the bottle mouth at the same time, so that the sample at the beaker bottle mouth can be dissolved and cleaned from top to bottom;

[0019] 2. The beaker is tilted by the tilting component, so that the rinsing liquid in the beaker can be gathered together, making it easier for the transfer needle to transfer the liquid in the beaker completely;

[0020] 3. The sample transfer workbench is equipped with a spray needle and transfer needle that can be raised and lowered and moved horizontally, which frees the hands of the experimenter, improves the experimental efficiency, reduces experimental errors, and improves the experimental accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a three-dimensional diagram of the sample transfer workbench;

[0022] Figure 2 This is the main view of the sample transfer workbench;

[0023] Figure 3 This is the right side view of the sample transfer workbench;

[0024] Figure 4 This is a top view of the sample transfer workbench;

[0025] Figure 5 It is a three-dimensional diagram of the rotating mechanism and the tilting mechanism;

[0026] Figure 6 This is a three-dimensional diagram of the rotating mechanism and the tilting mechanism (after removing the belt, handle and cylinder);

[0027] Figure 7 A three-dimensional diagram of the support mechanism;

[0028] Figure 8 This is a diagram of the sample transfer workbench in use;

[0029] in:

[0030] 1-Support plate; 2-Cup holder; 3-Vacuum flask holder; 4-Bracket No. 1; 5-Tiltable mounting plate; 6-Pulley assembly; 7-Motor; 8-Handle; 9-Cylinder; 10-Bracket No. 2; 11-First contact switch; 12-Trigger block; 13-Second contact switch; 14-Horizontal rotation axis; 15-Vertical rotation axis. DETAILED DESCRIPTION

[0031] like Figure 1 As shown, the sample transfer workbench includes a supporting mechanism, a rotating mechanism and a tilting mechanism;

[0032] like Figure 7As shown, the support mechanism includes a support plate 1, on which a plurality of circular holes are opened, which leave space for the implementation of rotation and tilting actions; a first bracket 4 and a second bracket 10 are vertically arranged at the bottom of the support plate 1, and the first bracket 4 and the second bracket 10 are arranged in parallel; a plurality of volumetric bottle holders 3 are arranged in a row on the support plate 1;

[0033] like Figure 5 As shown, the rotating mechanism includes a motor 7, the output shaft of the motor 7 is connected to a pulley set 6, and the pulley set 6 is composed of a plurality of pairs of pulleys, and the two pairs of pulleys are connected by belts; the central axis of the pulleys is a vertical rotating shaft 15, and the two adjacent pairs of pulleys are connected by being coaxially arranged on the vertical rotating shaft 15. The free end of the vertical rotating shaft 15 is connected to a cup holder 2, and the number of the cup holders 2 is the same as the number of the volumetric bottle holders 3;

[0034] like Figure 5 and Figure 6 As shown, the tilting mechanism includes a cylinder 9 and a tiltable mounting plate 5. The telescopic rod of the cylinder 9 is hinged to the handle 8 through a connecting rod. A horizontal rotating shaft 14 is provided on one side of the tiltable mounting plate 5. The other end of the handle 8 is connected to the horizontal rotating shaft 14. The cylinder 9 can push the handle 8 to rotate, and the handle 8 drives the horizontal rotating shaft 14 to rotate, and the horizontal rotating shaft 14 drives the tiltable mounting plate 5 to rotate. The tiltable mounting plate 5 has an upper and lower double-layer structure, and the pulley group falls between the tiltable mounting plates 5.

[0035] like Figure 1 As shown, preferably, the sample transfer workbench also includes a switch control mechanism.

[0036] Preferably, Figure 8 As shown, the sample transfer workbench also includes a translatable lifting frame, on which a spray needle and a transfer needle are provided, which are located above the beaker and the volumetric flask; the spray needle is externally connected to a liquid discharge pump, which is externally connected to a solvent bottle containing a washing liquid; the lower end of the spray needle is covered with liquid outlets on the periphery, which is convenient for spraying water mist from the periphery when descending; when the rotating mechanism drives the beaker to rotate, the liquid is sprayed while descending, which plays the role of cleaning the inner wall of the beaker from top to bottom; the transfer needle is externally connected to a liquid suction pump, and the transfer needle sucks the liquid in the beaker into the volumetric flask;

[0037] like Figure 1 As shown, preferably, the switch control mechanism includes a trigger block 12, a first contact switch 11, and a second contact switch 13. The trigger block 12 is a branch-shaped, coaxially arranged with the horizontal rotating shaft 14 and can rotate synchronously. When the horizontal rotating shaft 14 rotates, the trigger block 12 rotates along with the horizontal rotating shaft 14. When the trigger block 12 triggers the first contact switch 11, the cup holder 2 and the beaker are in a tilted state.

[0038] The telescopic rod of the cylinder 9 drives the handle 8 to rotate and descend to a horizontal position, and at the same time restores the tiltable mounting plate 5 to a horizontal position; the trigger block 12 rotates along with the horizontal rotation axis 14, and when the trigger block 12 triggers the second contact switch 13, the cup holder 2 and the beaker are in a horizontal state.

[0039] Preferably, the first contact switch 11 can be electrically connected to a liquid suction pump switch; and the second contact switch 13 can be electrically connected to a liquid discharge pump switch.

[0040] Preferably, Figure 1 As shown, four cup holders 2 are provided, and four volumetric bottle holders 3 are provided.

[0041] Preferably, the translatably movable lifting frame can be independently provided through a support frame or integrated with the sample transfer workbench.

[0042] Directions:

[0043] The sample transfer workbench can realize the rotation and tilting of the beaker when transferring the sample from the beaker to the volumetric flask, and cooperate with the spraying and aspiration mechanism to rinse all the samples in the beaker and transfer them to the volumetric flask;

[0044] The motor 7 is started, and the output shaft of the motor 7 drives the pulley assembly 6 to rotate. The pulley assembly 6 drives the vertical rotating shaft 15 to rotate, and the vertical rotating shaft 15 drives the cup holder 2 to rotate. The cup holder 2 contains a beaker, which rotates with the cup holder 2. The liquid pump draws liquid from the reagent bottle to the spray needle for spraying. The translatable lifting frame carries the spray needle down from the bottle mouth and sprays the liquid, fully dissolving the sample in the beaker and attached to the inner wall in the liquid.

[0045] After multiple rinses are completed, the mixed sample in the beaker is transferred multiple times. Each transfer is performed by the liquid pump sucking the liquid in the beaker through the transfer needle and transferring it to the volumetric flask.

[0046] The cylinder 9 is activated, and the telescopic rod of the cylinder 9 extends, which drives the handle 8 to rotate and rise, thereby rotating the horizontal shaft 14 to a certain angle, causing the tiltable mounting plate 5 to tilt. The tiltable mounting plate 5 drives the pulley set 6, the vertical shaft 15 and the cup holder 2 to tilt, and the beaker placed in the cup holder 2 also tilts. In this way, when the liquid in the beaker becomes less, it can be collected together by tilting (tilting the most concave part of the bottom of the beaker), so that the liquid can be sucked up by the transfer needle by the pipette pump and completely transferred to the volumetric flask;

[0047] The cylinder 9 is started, and the telescopic rod of the cylinder 9 is contracted, which drives the turning handle 8 to rotate and descend to the horizontal position, and at the same time restores the tiltable mounting plate 5 to the horizontal position, and the beaker also restores the horizontal position along with the cup holder 2.

[0048] When the horizontal rotating shaft 14 rotates, the trigger block 12 rotates along with the horizontal rotating shaft 14. When the trigger block 12 triggers the second contact switch 13, the beaker is horizontal, the liquid outlet pump is started, and the liquid outlet pump sucks the liquid in the reagent bottle to the spray needle and sprays it out, spraying the beaker from top to bottom; the position of the spray needle and the transfer needle is moved by the translatable lifting frame. When the trigger block 12 triggers the first contact switch 11, the beaker is in a tilted state, the liquid suction pump is started, and the liquid suction pump drives the transfer needle to suck the liquid in the beaker into the volumetric flask.

[0049] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0050] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0051] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. Sample transfer workbench, characterized in that, It includes a supporting mechanism, a rotating mechanism and a tilting mechanism; The support mechanism comprises a support plate (1), the support plate (1) is provided with a plurality of circular holes, the circular holes leaving space for the implementation of rotation and tilting actions; a first bracket (4) and a second bracket (10) are vertically arranged at the bottom of the support plate (1), and the first bracket (4) and the second bracket (10) are arranged in parallel; a plurality of volumetric bottle holders (3) are arranged in a row on the support plate (1); The rotating mechanism comprises a motor (7), the output shaft of the motor (7) is connected to a pulley group (6), the pulley group (6) is composed of a plurality of pairs of pulleys, and the two pairs of pulleys are connected by belts; the central axis of the pulley is a vertical rotating shaft (15), and the two adjacent pairs of pulleys are connected by being coaxially arranged on the vertical rotating shaft (15); the free end of the vertical rotating shaft (15) is connected to a cup holder (2), and the number of the cup holders (2) is the same as the number of the volumetric bottle holders (3); The tilting mechanism comprises a cylinder (9) and a tiltable mounting plate (5); the telescopic rod of the cylinder (9) is hinged with a turning handle (8) through a connecting rod; a horizontal rotating shaft (14) is provided on one side of the tiltable mounting plate (5); the other end of the turning handle (8) is connected to the horizontal rotating shaft (14); the turning handle (8) can be pushed by the cylinder (9) to rotate, the turning handle (8) drives the horizontal rotating shaft (14) to rotate, and the horizontal rotating shaft (14) drives the tiltable mounting plate (5) to rotate; the tiltable mounting plate (5) is a double-layer structure with an upper and a lower layer, and the pulley group falls between the tiltable mounting plates (5).

2. The sample transfer workbench according to claim 1, characterized in that: The sample transfer workbench also includes a switch control mechanism.

3. The sample transfer workbench according to claim 1, characterized in that: It also includes a translatable lifting frame, on which a spray needle and a transfer needle are provided, which are located above the beaker and the volumetric flask; the spray needle is connected to a liquid outlet pump, which is connected to a solvent bottle containing a washing liquid; the lower end of the spray needle is covered with liquid outlets on the periphery, which is convenient for spraying water mist from the periphery when descending; when the rotating mechanism drives the beaker to rotate, the liquid is sprayed while descending, which serves to clean the inner wall of the beaker from top to bottom; the transfer needle is connected to a liquid suction pump, and the transfer needle absorbs the liquid in the beaker into the volumetric flask.

4. The sample transfer workbench according to claim 2, characterized in that: The switch control mechanism comprises a trigger block (12), a first contact switch (11) and a second contact switch (13); the trigger block (12) is a branch-shaped one; the trigger block (12) and the horizontal rotating shaft (14) are coaxially arranged and can rotate synchronously; when the horizontal rotating shaft (14) rotates, the trigger block (12) rotates following the horizontal rotating shaft (14); when the trigger block (12) triggers the first contact switch (11), the cup holder (2) and the beaker are in a tilted state; The telescopic rod of the air cylinder (9) drives the handle (8) to rotate and descend to a horizontal position, and at the same time restores the tiltable mounting plate (5) to a horizontal position; the trigger block (12) rotates following the horizontal rotation shaft (14), and when the trigger block (12) triggers the second contact switch (13), the cup holder (2) and the beaker are in a horizontal state.

5. The sample transfer workbench according to claim 4, characterized in that: The first contact switch (11) can be electrically connected to a liquid suction pump switch; the second contact switch (13) can be electrically connected to a liquid discharge pump switch.

6. The sample transfer workbench according to claim 1, characterized in that: Four cup holders (2) are provided, and four volumetric flask holders (3) are provided.

7. The sample transfer workbench according to claim 3, characterized in that: The translatably movable lifting frame can be independently provided through the support frame or integrated with the sample transfer workbench.

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