Pipette tip separating and collecting device

Abstract

The utility model relates to a pipette tip separating and collecting device, and belongs to the technical field of pipette tip screening, the pipette tip separating and collecting device comprises a plurality of separating cylinders which are sequentially arranged in the vertical direction, the adjacent separating cylinders are detachably connected, and screening discs are rotatably arranged in the separating cylinders in a penetrating mode; the rotating axes of the screening discs are parallel to the arrangement direction of the multiple separating cylinders, and gaps of the multiple screening discs are sequentially reduced from top to bottom. The pipette tip separating device has the effects of quickly separating different types of pipette tips and saving manpower.

Description

Technical Field

[0001] The present application relates to the technical field of pipette tip screening, and in particular to a pipette tip separation and collection device. Background Art

[0002] A pipette is a tool used to accurately move and dispense liquids in a laboratory. In order to save costs, many laboratories will use used pipette tips of different models together after ultrasonication, sterilization, etc. for a second time.

[0003] In actual operation, it is inevitable to separate different types of pipette tips. However, it is often difficult to distinguish pipette tips of similar shapes and large volumes such as 200uL and 1000uL, which requires experimenters to spend a long time to sort and organize, which is very labor-intensive. Utility Model Content

[0004] In order to help quickly separate different types of pipette tips and save manpower, the present application provides a pipette tip separation and collection device.

[0005] The present application provides a pipette tip separation and collection device that adopts the following technical solution:

[0006] A pipette tip separation and collection device comprises a plurality of separation cylinders arranged in sequence along a vertical direction, wherein adjacent separation cylinders are detachably connected, wherein a screening disc is rotatably provided inside the separation cylinder, wherein the rotation axis of the screening disc is parallel to the arrangement direction of the plurality of separation cylinders, and wherein the gaps between the plurality of screening discs decrease in sequence from top to bottom.

[0007] Preferably, the pipette tip separation and collection device further comprises a chassis, a plurality of separation cylinders are located above the chassis, and the chassis is connected to the separation cylinder located at the bottom.

[0008] Preferably, the chassis is used to hold alcohol.

[0009] Preferably, an opening is provided on the chassis, and a baffle for opening and closing the opening is slidably provided on the chassis, and the baffle slides in a direction approaching or away from the opening.

[0010] Preferably, the separation cylinder includes a first cylinder body and a second cylinder body detachably arranged below the first cylinder body, the screening disc is rotatably passed through the corresponding second cylinder body, the first cylinder body is used to be detachably connected to the second cylinder body of the adjacent separation cylinder above, and the chassis is detachably connected to the second cylinder body of the adjacent separation cylinder.

[0011] Preferably, the first cylinder is threadedly connected to the corresponding second cylinder, the first cylinder is threadedly connected to the second cylinder of the upper adjacent separation cylinder, and the bottom plate is threadedly connected to the second cylinder of the adjacent separation cylinder.

[0012] Preferably, an extension rod is provided on the screening disc, and the extension rod extends in a direction away from the second cylinder.

[0013] Preferably, the screening disc comprises a swivel ring rotatably mounted on the corresponding second cylinder and a plurality of support rods arranged in parallel in the swivel ring, the intervals between adjacent support rods on the plurality of screening discs decrease from top to bottom, and the extension rod is arranged on the corresponding swivel ring.

[0014] Preferably, the separation cylinder is provided with three, the spacing between adjacent support rods on the top sieve disc is 1.3 cm, the spacing between adjacent support rods on the middle sieve disc is 0.7 cm, and the spacing between adjacent support rods on the bottom sieve disc is 0.55 cm.

[0015] Preferably, the diameter of the second cylinder located in the middle is larger than the diameters of the second cylinders on the upper and lower sides.

[0016] In summary, this application includes the following beneficial technical effects:

[0017] Place the used or processed pipette tips on the top screening plate. After a certain amount is placed, rotate the screening plate from top to bottom to make the screening plate and the pipette tips on it move relative to each other. Due to the different widths of the tails of the pipette tips, large-sized pipette tips are stuck in the gaps of the screening plate, and small-sized pipette tips enter the screening plate below, thereby realizing rapid separation of pipette tips of different models. After the screening is completed, the adjacent separation cylinders are disassembled so that the pipette tips on each layer of the screening plate can be taken out, which helps to save manpower. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0019] Figure 2 It is a cross-sectional view of the overall structure of an embodiment of the present application.

[0020] Figure 3 yes Figure 2 Enlarged view of part A.

[0021] Explanation of the reference numerals: 1. separation cylinder; 11. first cylinder body; 12. second cylinder body; 2. screening disc; 21. rotating ring; 22. support rod; 3. chassis; 4. opening; 5. baffle; 6. extension rod. DETAILED DESCRIPTION

[0022] The following is combined with Figure 1-3 This application is described in further detail.

[0023] The present application embodiment discloses a pipette tip separation and collection device. Figure 1 and Figure 2 The pipette tip separation and collection device includes a chassis 3 and a plurality of separation cylinders 1 arranged above the chassis 3. The cross-sections of the chassis 3 and the plurality of separation cylinders 1 are both circular. The plurality of separation cylinders 1 are arranged in sequence along the vertical direction. The separation cylinder 1 is a cylinder penetrating from top to bottom. Adjacent separation cylinders 1 are detachably connected. The chassis 3 is connected to the separation cylinder 1 located at the bottom. A screening disc 2 is rotatably penetrated in the separation cylinder 1. The rotation axis of the screening disc 2 is parallel to the arrangement direction of the plurality of separation cylinders 1. The gaps of the plurality of screening discs 2 decrease from top to bottom. The bottom walls of the screening disc 2 and the chassis 3 are both made of stainless steel. The side walls of the separation cylinder 1 and the chassis 3 are both made of transparent plastic material to facilitate observation of the screening condition.

[0024] When in use, multiple used gun tips or multiple treated gun tips are sequentially placed in the top screening tray 2. After a certain amount of pipette tips are placed, the screening tray 2 is rotated from top to bottom in sequence, so that the screening tray 2 and the pipette tips thereon move relative to each other. Since the tail widths of different types of pipette tips are different, large-sized pipette tips will be stuck in the gap of the screening tray 2, while small-sized pipette tips will fall through the gap to the next layer of the screening tray 2. After the screening tray 2 is rotated from top to bottom in sequence, different types of pipette tips can be obtained on the screening trays 2 of different layers. Rapid separation of different types of pipette tips is achieved, which helps to save manpower; when the screening is completed, the adjacent separation cylinders 1 are disassembled, so that the pipette tips on each layer of the screening tray 2 can be taken out for subsequent use. The setting of the chassis 3 helps to collect the droplets on the pipette tips after use or the droplets on the pipette tips after treatment, and is not easy to pollute the corresponding working environment.

[0025] Reference Figure 2 The chassis 3 is used to hold 75% alcohol, which helps to sterilize the droplets dropped from the pipette tip after use, and further ensures that the corresponding working environment is not easily contaminated; an opening 4 is provided on the side wall of the chassis 3, and a baffle 5 for opening and closing the opening 4 is slidably provided on the chassis 3, and the baffle 5 slides in a direction close to or away from the opening 4. Specifically, the sliding direction of the baffle 5 is parallel to the arrangement direction of the multiple separation cylinders 1, and a slider (not shown in the figure) is fixedly provided on the baffle 5. A guide groove (not shown in the figure) for sliding cooperation of the slider is provided on the outer wall of the chassis 3, and the sliding of the baffle 5 is guided by the sliding cooperation between the slider and the guide groove; in other embodiments, the sliding direction of the baffle 5 can be perpendicular to the arrangement direction of the multiple separation cylinders 1.

[0026] When screening is performed, the baffle 5 slides downward under the action of gravity to close the opening 4, thereby preventing the stagnant liquid in the chassis 3 from leaking easily; when screening is completed, the baffle 5 is slid upward in a direction away from the opening 4 so that the baffle 5 opens the opening 4 to facilitate the discharge of the stagnant liquid in the chassis 3, which is simple and convenient.

[0027] Reference Figure 2 and Figure 3 Each separation cylinder 1 includes a first cylinder body 11 and a second cylinder body 12, both of which are ring-shaped and penetrated from top to bottom. The first cylinder body 11 is located above the corresponding second cylinder body 12, and the second cylinder body 12 is detachably connected to the corresponding first cylinder body 11, and the screening disc 2 is rotatably penetrated on the corresponding second cylinder body 12; the first cylinder body 11 is detachably connected to the second cylinder body 12 of the upper adjacent separation cylinder 1, and the chassis 3 is detachably connected to the lower end of the second cylinder body 12 of the adjacent separation cylinder 1. Specifically, the first cylinder body 11 is threadedly connected to the corresponding second cylinder body 12 below, the first cylinder body 11 is threadedly connected to the lower end of the second cylinder body 12 of the upper adjacent separation cylinder 1, and the chassis 3 is threadedly connected to the lower end of the second cylinder body 12 of the adjacent separation cylinder 1.

[0028] By rotating the first cylinder 11, the first cylinder 11 and the corresponding second cylinder 12 are rotated relative to each other, so that the first cylinder 11 and the second cylinder 12 of the separation cylinder 1 can be separated; then the second cylinder 12 is rotated to make the second cylinder 12 and the first cylinder 11 of the adjacent separation cylinder 1 below rotate relative to each other, so that the second cylinder 12 can be separated from the first cylinder 11 of the adjacent separation cylinder 1 below, thereby making it convenient to remove the pipette tips on each layer of the screening disk 2 after screening; on the other hand, it is convenient to clean or repair the entire device.

[0029] Reference Figure 2 and Figure 3 The screening disc 2 includes a rotating ring 21 and a support rod 22. The rotating ring 21 is rotatably arranged on the corresponding second cylinder 12. The rotating axis of the rotating ring 21 is parallel to the arrangement direction of the multiple separation cylinders 1, and the rotating ring 21 is concentrically arranged with the corresponding second cylinder 12. There are multiple support rods 22, and the multiple support rods 22 are fixed in parallel and spaced in the corresponding rotating ring 21. The length direction of the support rods 22 is perpendicular to the arrangement direction of the multiple separation cylinders 1. The intervals between adjacent support rods 22 on each layer of the multiple screening discs 2 decrease from top to bottom. Extension rods 6 are fixedly arranged on opposite sides of the outer wall of the rotating ring 21. The cross section of the extension rod 6 is T-shaped, and the extension rod 6 extends in a direction away from the second cylinder 12.

[0030] When the screening disk 2 needs to be rotated, the extension rod 6 is moved to drive the corresponding screening disk 2 to rotate, thereby providing convenience for the experimenter's operation; multiple pipette tips are on the multiple support rods 22 of the screening disk 2, and the pipette tips with a size smaller than the interval between adjacent support rods 22 can fall through the interval between adjacent support rods 22, and the pipette tips with a size larger than the interval between adjacent support rods 22 will be stuck by the support rods 22, thereby achieving screening, which helps to save manpower.

[0031] Reference Figure 2 and Figure 3, three separation cylinders 1 are provided, and in other embodiments, the number of separation cylinders 1 can be set according to actual needs; in order to facilitate the screening of 5000uL, 1000uL, and 200uL pipette tips, the interval between adjacent support rods 22 on the top screening plate 2 is 1.3cm, the interval between adjacent support rods 22 on the middle screening plate 2 is 0.7cm, and the interval between adjacent support rods 22 on the bottom screening plate 2 is 0.55cm. In other embodiments, the interval between adjacent support rods 22 on the screening plate 2 can be set according to the model of the pipette tip to be screened.

[0032] Reference Figure 2 and Figure 3 , the diameter of the second cylinder 12 located in the middle is greater than the diameter of the second cylinder 12 on the upper and lower sides. Specifically, the diameter of the first cylinder 11 located at the top separation cylinder 1 is constant, and the first cylinder 11 located in the middle separation cylinder 1 includes a first connecting segment and a second connecting segment, the first connecting segment is located above the second connecting segment, the first connecting segment and the second connecting segment are integrally formed, the diameter of the first connecting segment is smaller than the diameter of the second connecting segment, the first connecting segment is used to be threadedly connected to the second cylinder 12 of the upper adjacent separation cylinder 1, and the second connecting segment is used to be threadedly connected to the second cylinder 12 of the corresponding separation cylinder 1; the first cylinder 11 located at the bottom separation cylinder 1 includes a third connecting segment and a fourth connecting segment, the third connecting segment is located above the fourth connecting segment, the third connecting segment and the fourth connecting segment are integrally formed, the diameter of the third connecting segment is greater than the diameter of the fourth connecting segment, the third connecting segment is used to be threadedly connected to the second cylinder 12 of the upper adjacent separation cylinder 1, and the fourth connecting segment is used to be threadedly connected to the second cylinder 12 of the corresponding separation cylinder 1. As a result, the screening plate 2 on the second cylinder 12 in the middle has a large area, which helps to accommodate the situation where a large number of 1000uL pipette tips are used in experiments.

[0033] Reference Figure 2 and Figure 3 The first cylinder 11 at the top has a vertical length of 2 cm and a diameter of 25 cm, the first cylinder 11 in the middle has a vertical length of 18 cm, specifically, the first connecting section has a vertical length of 16 cm and a diameter of 25 cm, the second connecting section has a vertical length of 2 cm and a diameter of 30 cm; the first cylinder 11 at the bottom has a vertical length of 13 cm, specifically, the third connecting section has a vertical length of 11 cm and a diameter of 30 cm, the fourth connecting section has a vertical length of 2 cm and a diameter of 25 cm; the chassis 3 has a vertical length of 7 cm, and the opening 4 has a vertical length of 1.5 cm; the size is suitable and easy to move.

[0034] The implementation principle of the embodiment of the present application is as follows: when in use, the device is placed in the corresponding working environment, 75% alcohol is added to the chassis 3, and multiple used gun tips or multiple treated gun tips are sequentially placed on the top screening plate 2. After a certain amount of gun tips are placed, the extension rod 6 on the screening plate 2 is rotated from top to bottom in sequence, so that the extension rod 6 drives the screening plate 2 and the pipette gun tip thereon to move relative to each other. Due to the different widths of the tails of different types of pipette gun tips, the pipette gun tips are pointed downward under the action of gravity. The pipette gun tips with a size larger than the corresponding layer of support rods 22 will be stuck by the support rods 22 on the screening plate 2, and the pipette gun tips with a size smaller than the corresponding layer of support rods 22 will fall onto the next layer of the screening plate 2, thereby realizing the rapid separation of different types of pipette gun tips, which helps to save manpower. If it is observed through the transparent separation cylinder 1 that there are gun tips that cannot be separated by rotating the screening plate 2, the entire device itself can be moved to vibrate to complete the screening.

[0035] After the screening is completed, the first cylinder 11 is rotated to make the first cylinder 11 and the corresponding second cylinder 12 rotate relative to each other, so that the first cylinder 11 of the separation cylinder 1 can be separated from the second cylinder 12; then the second cylinder 12 is rotated to make the second cylinder 12 and the first cylinder 11 of the adjacent separation cylinder 1 below rotate relative to each other, so that the second cylinder 12 can be separated from the first cylinder 11 of the adjacent separation cylinder 1 below, thereby facilitating the removal of the pipette tips on each layer of the screening disk 2; finally, the baffle 5 is slid upward to open the opening 4 of the baffle 5, so as to facilitate the discharge of the internal stagnant liquid in the bottom plate 3, and it is not easy to pollute the corresponding working environment. The device is simple to operate, can be applied to multiple working environments, and can be made according to actual needs.

[0036] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A pipette tip separation and collection device, characterized in that: The invention comprises a plurality of separation cylinders (1) arranged in sequence along a vertical direction, wherein adjacent separation cylinders (1) are detachably connected, wherein a screening disc (2) is rotatably arranged in the separation cylinder (1), wherein the rotation axis of the screening disc (2) is parallel to the arrangement direction of the plurality of separation cylinders (1), and the gaps between the plurality of screening discs (2) decrease in sequence from top to bottom.

2. A pipette tip separation and collection device according to claim 1, characterized in that: The pipette tip separation and collection device also comprises a bottom plate (3), a plurality of separation cylinders (1) are located above the bottom plate (3), and the bottom plate (3) is connected to the separation cylinder (1) located at the bottom.

3. A pipette tip separation and collection device according to claim 2, characterized in that: The bottom plate (3) is used for containing alcohol.

4. A pipette tip separation and collection device according to claim 2, characterized in that: The chassis (3) is provided with an opening (4), and a baffle (5) for opening and closing the opening (4) is slidably provided on the chassis (3), and the baffle (5) slides in a direction approaching or moving away from the opening (4).

5. A pipette tip separation and collection device according to any one of claims 2 to 4, characterized in that: The separation cylinder (1) comprises a first cylinder body (11) and a second cylinder body (12) detachably arranged below the first cylinder body (11); the screening disc (2) is rotatably inserted into the corresponding second cylinder body (12); the first cylinder body (11) is used to be detachably connected to the second cylinder body (12) of the upper adjacent separation cylinder (1); and the bottom plate (3) is detachably connected to the second cylinder body (12) of the adjacent separation cylinder (1).

6. A pipette tip separation and collection device according to claim 5, characterized in that: The first cylinder (11) is threadedly connected to the corresponding second cylinder (12), the first cylinder (11) is threadedly connected to the second cylinder (12) of the upper adjacent separation cylinder (1), and the bottom plate (3) is threadedly connected to the second cylinder (12) of the adjacent separation cylinder (1).

7. A pipette tip separation and collection device according to claim 5, characterized in that: An extension rod (6) is provided on the screening disc (2), and the extension rod (6) extends in a direction away from the second cylinder (12).

8. A pipette tip separation and collection device according to claim 7, characterized in that: The screening disc (2) comprises a rotating ring (21) rotatably inserted into a corresponding second cylinder (12) and a plurality of supporting rods (22) arranged in parallel in the rotating ring (21), the intervals between adjacent supporting rods (22) on the plurality of screening discs (2) decreasing from top to bottom, and the extension rod (6) being arranged on the corresponding rotating ring (21).

9. A pipette tip separation and collection device according to claim 8, characterized in that: The separation cylinders (1) are provided with three, the spacing between adjacent support rods (22) on the topmost screening disc (2) is 1.3 cm, the spacing between adjacent support rods (22) on the middle screening disc (2) is 0.7 cm, and the spacing between adjacent support rods (22) on the bottommost screening disc (2) is 0.55 cm.

10. A pipette tip separation and collection device according to claim 9, characterized in that: The diameter of the second cylinder (12) located in the middle is larger than the diameters of the second cylinders (12) on the upper and lower sides.

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