Pipetting work station capable of preventing pipetting gun heads from being mixed

Abstract

The utility model provides a pipetting workstation for preventing the mixing of pipetting gun heads, which comprises a base, a storage rack assembly and a pipetting gun head assembly, and the left side edge and the right side edge of the upper side surface of the base are respectively provided with two upright posts. The test tube bodies can be vertically placed in the storage rack assembly, are arranged in order and are orderly stored in corresponding positions, so that collision and disordered stacking among the test tube bodies and cross contact of pipette tips can be effectively avoided, the possibility of cross contamination is reduced, a plurality of pipette channels are formed by arranging the pipette tip assembly, and the test tube bodies can be conveniently stored in the pipette tip assembly. The plurality of pipetting channels means that a plurality of pipetting operations can be carried out at the same time, so that the waiting time is shortened, the working efficiency is improved, and an operator can carry out different sample treatments on different channels to quickly complete the tasks of sample treatment and analysis.

Description

Technical Field

[0001] The utility model belongs to the field of liquid transfer workstation equipment, and particularly relates to a liquid transfer workstation capable of preventing liquid transfer gun tips from being mixed up. Background Art

[0002] A pipetting workstation is an experimental instrument for performing liquid pipetting operations. However, in actual use, the pipetting workstations of the prior art have the problem that the current pipetting workstations usually do not have a dedicated storage slot for placing pipette tips. This is because there is a lack of components to prevent the mixing of pipette tips. The lack of components to prevent the mixing of pipette tips will not only lead to the above problems, but also the lack of a mechanism for identification and numbering is one of the factors that lead to the mixing of pipette tips. First, the current pipetting workstations usually do not have a dedicated storage slot for placing pipette tips. This causes the pipette tips to be often placed on the workbench or put together at random, which is easy to mix together, causing the risk of cross contamination. The lack of a clear storage location also increases the possibility of negligence and errors by the operator. Secondly, the lack of a mechanism for identification and numbering is also one of the factors that lead to the mixing of pipette tips. In the absence of clear identification, it is difficult for the operator to quickly identify and select a suitable pipette tip. This may lead to incorrect pipetting operations, thereby affecting the accuracy and repeatability of the experimental results, so it is necessary to propose a new structure to solve the above technical problems. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model aims to provide a pipetting workstation that prevents pipette tips from being mixed up, thereby solving the problems raised in the above-mentioned background technology.

[0004] The utility model is realized by the following technical scheme: a pipetting workstation for preventing pipette tips from being mixed up, comprising: a base, a storage rack assembly and a pipette tip assembly, two columns are respectively installed on the left edge and the right edge of the upper surface of the base, a cover plate is installed on the end of the column away from the base, an electric slide rail is installed on the lower surface of the cover plate, two groups of storage rack assemblies are installed on the upper surface of the base, the two groups of storage rack assemblies have the same structure, the storage rack assembly includes a bracket and a test tube body, and the surface of the bracket is uniformly carded It is equipped with multiple test tube bodies, and a pipette tip assembly is slidably installed on the lower surface of the cover plate through an electric slide rail. The pipette tip assembly includes a mounting plate, a pipette gun, a tip body, an identification body, a suction pump, an electric push rod and a partition. A suction pump and an electric push rod are installed on the upper surface of the mounting plate, a pipette gun is installed on the lower surface of the mounting plate, an identification body is magnetically installed on the surface of the pipette gun, a tip body is clamped at the lower end of the pipette gun, a partition is installed on the lower surface of the mounting plate, and a storage slot is provided on the upper surface of the base.

[0005] As a preferred embodiment, the left half and the right half of the upper surface of the base are recessed downward to form a groove, and a bracket is installed on the inner wall of the groove. The surface of the bracket is evenly and vertically clamped with multiple test tubes, and the lower end of the test tube body abuts against the bottom of the groove. The test tube bodies can be placed vertically inside the storage rack assembly and arranged neatly and orderly stored in corresponding positions, which can effectively avoid collisions between test tube bodies, chaotic stacking and cross-contact of pipette tips, reducing the chance of cross contamination.

[0006] As a preferred embodiment, the center position of the upper surface of the base is recessed downward to form a plurality of storage slots, and slot covers are slidably mounted on the upper surfaces of the plurality of storage slots, and a pipette tip is mounted inside each of the storage slots.

[0007] As a preferred embodiment, the model of the electric slide rail is ETB17, the model of the two electric push rods is 12V-22N, the upper ends of the two electric push rods are slidably connected to the electric slide rail, and the ends of the two electric push rods away from the electric slide rail are respectively connected to the left end and the right end of the upper surface of the mounting plate, and the stroke of the electric push rod is greater than the gap between the cover plate and the base.

[0008] As a preferred embodiment, a plurality of pipettes are evenly mounted on the lower surface of the mounting plate, the number and positions of the pipettes are matched and aligned with the number and positions of the test tube bodies, the central axis of the pipettes is collinear with the central axis of the test tube body, each pipette channel can independently use a different pipette tip, avoiding cross contamination between different samples, and the operator can assign different samples to different channels for operation, reducing the risk of contamination and improving the accuracy of the experimental results, and the surface of the pipette is magnetically attached with an identification body, which can clearly identify the purpose, sample type or operation steps of each pipette, which can help the operator quickly distinguish different pipettes and avoid confusion or operating errors.

[0009] As a preferred embodiment, a gap is set between every two of the pipettes, and each gap is installed with a partition, the length of the partition is slightly larger than the length of the pipette and the gun head body, and a suction pump is installed on the upper surface of the mounting plate, the number and position of each suction pump match the number and position of the pipettes, and the suction port of the suction pump is connected to the pipette.

[0010] After adopting the above technical scheme, the beneficial effect of the utility model is as follows: by setting up a storage rack assembly, the storage rack assembly includes a bracket and a test tube body, the left half and the right half of the upper surface of the base are respectively recessed downward to form a groove, the inner wall of the groove is installed with a bracket, and the upper surface of the bracket is in a vertical state with multiple test tube bodies clamped, the test tube bodies can be placed vertically inside the storage rack assembly, and arranged neatly and stored in the corresponding positions in an orderly manner, which can effectively avoid collisions between test tube bodies, chaotic stacking and cross-contact of pipette tips, and reduce the chance of cross contamination.

[0011] By setting a pipette tip assembly, the pipette tip assembly is slidably installed on the electric slide rail on the lower surface of the cover plate. The pipette tip assembly is provided with multiple pipette guns and suction pumps, thereby forming multiple pipetting channels, and an identification body is magnetically attracted on the surface of the pipette gun. Having multiple pipetting channels means that multiple pipetting operations can be performed at the same time, which reduces waiting time and improves work efficiency. The operator can perform different sample processing on different channels and quickly complete the sample processing and analysis tasks. At the same time, each pipetting channel can independently use a different pipette tip to avoid cross contamination between different samples. The operator can assign different samples to different channels for operation, which reduces the risk of contamination and improves the accuracy of the experimental results. The pipette gun surface is magnetically attracted with an identification body, which can clearly identify the purpose, sample type or operation steps of each pipette gun, which can help the operator quickly distinguish different pipette guns and avoid confusion or operation errors. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0013] Figure 1 The utility model is a schematic diagram of the overall structure of a pipetting workstation for preventing pipetting gun tips from being mixed up.

[0014] Figure 2 The utility model is a schematic diagram of a pipette tip assembly of a pipette workstation for preventing pipette tips from being mixed up.

[0015] Figure 3 The utility model is a schematic diagram of a storage rack assembly of a pipetting workstation for preventing pipette tips from being mixed up.

[0016] In the figure, 100 is a base, 110 is a column, 120 is a cover plate, and 130 is an electric slide rail;

[0017] 200-pipette tip assembly, 210-mounting plate, 211-suction pump, 220-electric push rod, 230-pipette, 231-identifier, 232-tip body, 240-partition;

[0018] 300 - storage rack assembly, 310 - support, 320 - test tube body. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figures 1 to 3 The utility model provides a technical solution: a pipetting workstation for preventing pipette tips from being mixed up, comprising: a base 100, a storage rack assembly 300 and a pipette tip assembly 200, two columns 110 are respectively installed on the left edge and the right edge of the upper surface of the base 100, a cover plate 120 is installed on the end of the column 110 away from the base 100, an electric slide rail 130 is installed on the lower surface of the cover plate 120, two groups of storage rack assemblies 300 are installed on the upper surface of the base 100, the two groups of storage rack assemblies 300 have the same structure, the storage rack assembly 300 includes a bracket 310 and a test tube body 320, a plurality of test tube bodies 320 are evenly mounted on the surface of the bracket 310, and a plurality of test tube bodies 320 are evenly mounted on the surface of the cover plate 120. A pipette tip assembly 200 is slidably mounted on the lower surface of the plate 120 via an electric slide rail 130. The pipette tip assembly 200 includes a mounting plate 210, a pipette gun 230, a tip body 232, an identification body 231, a suction pump 211, an electric push rod 220, and a partition 240. A suction pump 211 and an electric push rod 220 are mounted on the upper surface of the mounting plate 210, a pipette gun 230 is mounted on the lower surface of the mounting plate 210, an identification body 231 is magnetically mounted on the surface of the pipette gun 230, a tip body 232 is clamped at the lower end of the pipette gun 230, a partition 240 is mounted on the lower surface of the mounting plate 210, and a storage slot 400 is provided on the upper surface of the base 100.

[0021] See also Figures 1 to 3 As an embodiment of the utility model: the left half and the right half of the upper surface of the base 100 are recessed downward to form a groove, and a bracket 310 is installed on the inner wall of the groove. The surface of the bracket 310 is evenly and vertically clamped with multiple test tube bodies 320, and the lower end of the test tube body 320 abuts against the bottom of the groove.

[0022] The center of the upper surface of the base 100 is concave downward to form a plurality of storage slots 400, and a slot cover 410 is slidably mounted on the upper surface of the plurality of storage slots 400. A pipette tip is mounted inside each storage slot 400. The storage slot 400 can provide an independent storage space for each pipette tip, so that they can be stored separately to avoid confusion and contact with each other. This helps to reduce cross contamination between pipette tips and maintain the purity and accuracy of reagents and samples;

[0023] When in use, the user first places the prepared liquid inside the left half or the right half of the test tube body 320, and then the user can use the pipette tip assembly 200 to pipette the liquid inside the left half or the right half. Since the upper surface of the bracket 310 is in a vertical state and multiple test tube bodies 320 are mounted, the test tube bodies 320 can be placed vertically inside the storage rack assembly 300 and arranged neatly and orderly stored in corresponding positions. This can effectively avoid collisions between the test tube bodies 320, chaotic stacking, and cross-contact of the pipette tips, thereby reducing the chance of cross contamination.

[0024] The model of the electric slide rail 130 is ETB17, and the model of the two electric push rods 220 is 12V-22N. The upper ends of the two electric push rods 220 are slidably connected to the electric slide rail 130, and the ends of the two electric push rods 220 away from the electric slide rail 130 are respectively connected to the left end and the right end of the upper surface of the mounting plate 210, and the stroke of the electric push rod 220 is greater than the gap between the cover plate 120 and the base 100.

[0025] See also Figures 1 to 3 As an embodiment of the utility model: a plurality of pipette guns 230 are evenly mounted on the lower surface of the mounting plate 210, the number and position of the pipette guns 230 are matched and aligned with the number and position of the test tube body 320, and the central axis of the pipette gun 230 is collinear with the central axis of the test tube body 320;

[0026] A gap is provided between every two pipette guns 230, and a partition 240 is installed in each gap. The length of the partition 240 is slightly greater than the length of the pipette gun 230 and the gun head body 232. A suction pump 211 is installed on the upper surface of the mounting plate 210. The number and position of each suction pump 211 match the number and position of the pipette gun 230. The suction port of the suction pump 211 is connected to the pipette gun 230.

[0027] When in use, the user first starts the electric slide 130, moves the pipette tip assembly 200 to the top of the storage rack assembly 300 and aligns it with it, and then starts the electric push rod 220, the electric push rod 220 descends, and then drives the mounting plate 210 to descend, and then the pipette gun 230 under the mounting plate 210 is matched with the gun tip body 232 to enter the test tube body 320, and then each suction pump 211 is started at this time, and each suction pump 211 works to suck the specific amount of solution selected by the user into the gun tip body 232, and then the electric push rod 220 is retracted at this time, and then the electric slide 130 is started to perform the pipetting operation. Since multiple suction pumps 211 constitute multiple pipetting channels, multiple pipetting channels mean that multiple pipetting operations can be performed simultaneously, which reduces waiting time and improves The work efficiency is improved, and the operator can perform different sample processing on different channels to quickly complete the sample processing and analysis tasks. At the same time, each pipetting channel can independently use a different pipette tip to avoid cross-contamination between different samples. The operator can assign different samples to different channels for operation, which reduces the risk of contamination and improves the accuracy of the experimental results. The surface of the pipette gun 230 is magnetically attracted with an identification body 231, which can clearly identify the purpose, sample type or operation steps of each pipette gun 230, which can help the operator quickly distinguish different pipette guns 230 and avoid confusion or operation errors (the models of the electric slide rail 130 and suction pump 211 mentioned above can be selected from the models of existing products on the market, and their structure and working principle are all existing technologies, which will not be repeated here).

[0028] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A pipetting workstation for preventing pipette tips from mixing up, comprising: A base (100), a storage rack assembly (300) and a pipette tip assembly (200), characterized in that two columns (110) are respectively installed on the left edge and the right edge of the upper surface of the base (100), a cover plate (120) is installed on the end of the column (110) away from the base (100), an electric slide rail (130) is installed on the lower surface of the cover plate (120), and two groups of storage rack assemblies (300) are installed on the upper surface of the base (100); The two groups of storage rack assemblies (300) have the same structure. The storage rack assembly (300) comprises a bracket (310) and a test tube body (320). A plurality of test tube bodies (320) are evenly mounted on the surface of the bracket (310). A pipette tip assembly (200) is slidably mounted on the lower surface of the cover plate (120) via an electric slide rail (130). The pipette tip assembly (200) comprises a mounting plate (210), a pipette (230), a tip body (232), an identification body (231), a suction pump (211), an electric push rod (220), and a partition plate (240). A suction pump (211) and an electric push rod (220) are installed on the upper surface of the mounting plate (210), a pipette gun (230) is installed on the lower surface of the mounting plate (210), an identification body (231) is magnetically mounted on the surface of the pipette gun (230), a gun head body (232) is clamped at the lower end of the pipette gun (230), a partition plate (240) is installed on the lower surface of the mounting plate (210), and a storage slot (400) is provided on the upper surface of the base (100).

2. A pipetting workstation for preventing pipette tips from mixing up as claimed in claim 1, characterized in that: The left and right halves of the upper surface of the base (100) are recessed downward to form a groove, a bracket (310) is installed on the inner wall of the groove, and a plurality of test tube bodies (320) are evenly mounted on the surface of the bracket (310) in a vertical state, and the lower ends of the test tube bodies (320) are in contact with the bottom of the groove.

3. A pipetting workstation for preventing pipette tips from mixing up as claimed in claim 2, characterized in that: The center position of the upper surface of the base (100) is recessed downward to form a plurality of storage slots (400), and slot covers (410) are slidably mounted on the upper surfaces of the plurality of storage slots (400), and a pipette tip is mounted inside each storage slot (400).

4. A pipetting workstation for preventing pipette tips from mixing up as claimed in claim 3, characterized in that: The model of the electric slide rail (130) is ETB17, and the model of the two electric push rods (220) is 12V-22N. The upper ends of the two electric push rods (220) are slidably connected to the electric slide rail (130), and the ends of the two electric push rods (220) away from the electric slide rail (130) are respectively connected to the left end and the right end of the upper surface of the mounting plate (210), and the stroke of the electric push rods (220) is greater than the gap between the cover plate (120) and the base (100).

5. A pipetting workstation for preventing pipette tips from mixing up as claimed in claim 4, characterized in that: A plurality of pipette guns (230) are evenly mounted on the lower surface of the mounting plate (210); the number and positions of the pipette guns (230) are matched and aligned with the number and positions of the test tube bodies (320); and the central axis of the pipette gun (230) is collinear with the central axis of the test tube body (320).

6. A pipetting workstation for preventing pipette tips from mixing up as claimed in claim 5, characterized in that: A gap is provided between every two of the pipette guns (230), and each of the gaps is installed with a partition (240), the length of the partition (240) is slightly greater than the length of the pipette gun (230) and the gun head body (232), and a suction pump (211) is installed on the upper surface of the mounting plate (210), the number and position of each suction pump (211) match the number and position of the pipette gun (230), and the suction port of the suction pump (211) is connected to the pipette gun (230).

Images