Pipette head placer

By designing a pipette tip holder with a sterilization and pusher assembly, the automatic sterilization and push-out of the tip solves the problems of cross-contamination and manual operation in traditional devices, achieving an efficient and sterile experimental process.

CN223505322UActive Publication Date: 2025-11-04ANHUI HUAPEI BIOTECHNOLOGY CO LTD
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Patent Information

Application Number
CN202422841394.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-21
Publication Date
2025-11-04
Estimated Expiration
2034-11-21

AI Technical Summary

Technical Problem

Traditional pipette tip storage devices are prone to accumulating microorganisms, increasing the risk of cross-contamination, and require manual disinfection and retrieval, affecting experimental efficiency and accuracy.

Method used

Design a pipette tip holder with a sterilization component and a pusher component. The sterilization component automatically sterilizes the pipette tip and the pusher component automatically pushes the pipette tip out, reducing manual operation.

Benefits of technology

It effectively kills microorganisms, reduces the risk of cross-contamination, shortens pretreatment time, and improves experimental efficiency and sterility.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of placers, and particularly discloses a pipette head placer which comprises a placement box body, a disinfection assembly, a pipette head body and a material pushing assembly, a connecting column is rotationally arranged on the placing box body, and a conveying disc is arranged on the connecting column; the disinfection assembly comprises a water inlet pipe, the water inlet pipe penetrates through the conveying disc and is located in the placement box body, and a through hole for pouring disinfectant fluid into the water inlet pipe is formed in the placement box body; the pipette head body is embedded with the conveying disc and is positioned between the placing box body and the conveying disc, and a through groove for discharging and feeding the pipette head body is formed in the placing box body; the material pushing assembly is arranged on the conveying disc. According to the utility model, the manual operation time can be shortened, an experimenter can take the gun head more quickly, so that the working efficiency is improved, and the pollution risk can be reduced and the sterility of the experiment process can be ensured by reducing the frequency of directly and manually stretching into the placing box body to contact the gun head.
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Description

Technical Field

[0001] This utility model relates to the field of placement technology, specifically to a pipette tip placement device. Background Technology

[0002] Pipette tips are replaceable parts used with pipettes for the precise aspiration and dispensing of liquids. Their main functions and features include: using negative pressure to accurately aspirate a specific volume of liquid; a design that enables high-precision dispensing during liquid transfer, suitable for various experimental needs; and many pipette tips are disposable to prevent cross-contamination and improve experimental safety and accuracy. A pipette tip holder is a device used to store and manage pipette tips.

[0003] Traditional apparatus without sterilization equipment is prone to accumulating microorganisms during storage, increasing the risk of cross-contamination and affecting the reliability of experimental results. Furthermore, traditional pipette tips usually require manual sterilization or cleaning before use, which increases preparation time and reduces experimental efficiency. Traditional apparatus requires manual handling of pipette tips, increasing the number of steps and consuming more time. Frequent human contact with pipette tips may lead to microbial contamination, especially in aseptic experiments, which can affect the accuracy of experimental results. Utility Model Content

[0004] The purpose of this invention is to provide a pipette tip holder to solve the following technical problems:

[0005] How to solve the problems of disinfecting pipette tips and automatically ejecting pipette tips from the container.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] A pipette tip holder, comprising:

[0008] A placement box is provided, on which a connecting column is rotatably mounted, and a conveyor plate is mounted on the connecting column;

[0009] A disinfection assembly, comprising a water inlet pipe that passes through a conveyor plate and is located inside a placement box, wherein the placement box has a through hole for pouring disinfectant into the water inlet pipe;

[0010] The pipette tip body is fitted with a conveyor tray and located between the placement box and the conveyor tray. The placement box has a through groove for discharging and feeding the pipette tip body.

[0011] A feeding assembly is disposed on a conveyor tray. The feeding assembly includes a clamping mechanism for holding the pipette tip body and a moving mechanism for driving the clamping mechanism to move.

[0012] In this embodiment, the disinfection assembly further includes a fixing ring, a nozzle, and a connecting pipe; the fixing ring is respectively disposed on the inner wall of the top of the placement box and the bottom of the conveyor plate; the nozzle is evenly distributed around the fixing ring along the circumferential direction; the two ends of the connecting pipe are respectively connected to the water inlet pipe and the fixing ring.

[0013] In this embodiment, the inner wall of the top of the placement box is provided with a limiting plate for limiting the position of the pipette tip body.

[0014] In this embodiment, the placement box is provided with a shelf at the through groove to facilitate the feeding and unloading of the pipette tip.

[0015] In this embodiment, the moving mechanism includes a slide rail, a connecting frame, and a rack; the slide rail is on a conveyor plate; the rack is slidably mounted on the slide rail, and a driving unit for driving the rack to slide is provided on the slide rail; the connecting frame is mounted on the rack.

[0016] In this embodiment, the drive unit includes a drive motor, a transmission shaft, and a gear; the drive motor is disposed on the outer wall of the slide rail; the transmission shaft is rotatably disposed on the slide rail and connected to the output end of the drive motor; the gear is disposed on the transmission shaft and meshes with a rack.

[0017] In this embodiment, the clamping mechanism includes a cylinder and a clamping arm; the cylinder is rotatably disposed on both sides of the connecting frame; the clamping arm is rotatably connected to the telescopic end of the cylinder, and the clamping arm is located on both sides of the pipette tip body.

[0018] The beneficial effects of this utility model are:

[0019] (1) By setting up a disinfection component, this utility model can effectively kill microorganisms that may exist during the storage of pipette tip body, reduce the risk of cross-contamination, and the pipette tip body that can be used directly after disinfection can reduce pretreatment time and make the experimental process more efficient.

[0020] (2) By setting up a pusher assembly, this utility model can automatically push the pipette tip body out of the placement box under the driving force of the drive motor, which can reduce manual operation time and enable the experimenter to take the pipette tip more quickly, thereby improving work efficiency. By reducing the number of times the pipette tip is directly inserted into the placement box, the risk of contamination can be reduced and the sterility of the experimental process can be ensured. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings.

[0022] Figure 1 This is a schematic diagram of the overall structure of a pipette tip holder according to the present invention;

[0023] Figure 2 This is a cross-sectional view of a pipette tip holder according to the present invention;

[0024] Figure 3 This is a schematic diagram of the structure of the disinfection component of this utility model;

[0025] Figure 4 This is a schematic diagram of the pusher assembly structure of this utility model.

[0026] Reference numerals in the attached diagram: 1. Placement box; 2. Shelf; 3. Pipette tip body; 4. Connecting column; 5. Fixing ring; 6. Nozzle; 7. Water inlet pipe; 8. Limiting plate; 9. Transfer tray; 10. Slide rail; 11. Connecting frame; 12. Connecting pipe; 13. Drive motor; 14. Drive shaft; 15. Gear; 16. Rack; 17. Cylinder; 18. Clamping arm. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0028] Please refer to the attached drawings for a pipette tip holder according to an embodiment of this utility model. Figures 1-4 As shown, the device includes a placement box 1, a disinfection assembly, a pipette tip body 3, and a feeding assembly. A connecting column 4 is rotatably mounted on the placement box 1, and two sets of conveyor plates 9 are mounted on the connecting column 4. The disinfection assembly includes a water inlet pipe 7 that passes through the conveyor plates 9 and is located inside the placement box 1. The placement box 1 has a through hole for pouring disinfectant into the water inlet pipe 7, and the bottom end of the water inlet pipe 7 is solid. The pipette tip body 3 is fitted with the two sets of conveyor plates 9 and is located between the placement box 1 and the conveyor plates 9. The placement box 1 has a through groove for dispensing and receiving material from the pipette tip body 3. The feeding assembly is mounted on one set of conveyor plates 9 at the bottom. The feeding assembly includes a clamping mechanism for holding the pipette tip body 3 and a moving mechanism for driving the clamping mechanism to move.

[0029] As one embodiment of this utility model, please refer to the accompanying drawings. Figures 2-3As shown, specifically, the disinfection assembly also includes a fixing ring 5, a nozzle 6, and a connecting pipe 12; the fixing ring 5 is respectively set on the top inner wall of the placement box 1 and the bottom of the conveyor plate 9; the nozzles 6 are evenly distributed in the circumferential direction with the fixing ring 5 as the center; the two ends of the connecting pipe 12 are respectively connected to the water inlet pipe 7 and the fixing ring 5, and the fixing ring 5 has a leakage hole that communicates with the nozzle 6.

[0030] As one embodiment of this utility model, please refer to the accompanying drawings. Figure 2 As shown, specifically, the inner top wall of the placement box 1 is provided with a limiting plate 8 for limiting the position of the pipette tip body 3.

[0031] As one embodiment of this utility model, please refer to the accompanying drawings. Figure 1 As shown, specifically, the placement box 1 is provided with a shelf 2 at the through groove to facilitate the feeding and unloading of the pipette tip body 3. The use of the placement box 1 can reduce the probability of multiple pipette tip bodies 3 being directly exposed to the air, thereby reducing the situation of contaminants adsorbing on the pipette tip body 3.

[0032] As one embodiment of this utility model, please refer to the accompanying drawings. Figure 2 , Figure 4 As shown, specifically, the moving mechanism includes a slide rail 10, a connecting frame 11, and a rack 16; the slide rail 10 is on the conveyor disk 9; the rack 16 is slidably disposed on the slide rail 10, and the slide rail 10 is provided with a driving unit for driving the rack 16 to slide; the connecting frame 11 is disposed on the rack 16.

[0033] As one embodiment of this utility model, please refer to the accompanying drawings. Figure 4 As shown, specifically, the drive unit includes a drive motor 13, a transmission shaft 14, and a gear 15; the drive motor 13 is disposed on the outer wall of the slide rail 10; the transmission shaft 14 is rotatably disposed on the slide rail 10 and connected to the output end of the drive motor 13; the gear 15 is disposed on the transmission shaft 14 and meshes with the rack 16.

[0034] As one embodiment of this utility model, please refer to the accompanying drawings. Figure 4 As shown, specifically, the clamping mechanism includes a cylinder 17 and a clamping arm 18; the cylinder 17 is rotatably disposed on both sides of the connecting frame 11; the clamping arm 18 is rotatably connected to the telescopic end of the cylinder 17, and the clamping arm 18 is located on both sides of the pipette head body 3.

[0035] The working principle of this invention is as follows: The pipette tip body 3 is fitted into the transfer tray 9 through the through groove on the placement box 1. Then, the connecting column 4 is manually rotated, which drives the transfer tray 9 to rotate. When it rotates to the next fitting groove, the pipette tip body 3 is fitted in again until the fitting groove on the transfer tray 9 is full. Then, disinfectant water is injected into the water inlet pipe 7 through the through hole on the placement box 1. Then, the nozzle 6 is sprayed with water by controlling the external switch to disinfect the pipette tip body 3. The disinfected pipette tip can be used directly, reducing pretreatment time and making the experimental process more efficient. When it is necessary to remove the pipette tip body 3, the drive motor 13 is turned on by controlling the external switch, which drives the transmission shaft 14 and gear 15 to rotate, thereby driving the rack 16 and connecting bracket 11 to move on the slide rail 10. After moving to the position where the clamping arm 18 can contact the pipette tip body 3, the drive motor 13 is stopped, and then the cylinder 17 is turned on to drive the clamping arm 18 to clamp the pipette tip body 3. Then the drive motor 13 is turned on again to drive the rack 16 to push the clamping arm 18 out of the through slot on the placement box 1 for material removal, so that the experimenter can remove the pipette tip more quickly.

[0036] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A pipette tip holder, characterized in that, include: Placement box (1), on which a connecting column (4) is rotatably provided, and on which a conveyor plate (9) is provided; The disinfection assembly includes a water inlet pipe (7), which passes through a conveyor plate (9) and is located inside a placement box (1). The placement box (1) has a through hole for pouring disinfectant into the water inlet pipe (7). The pipette tip body (3) is fitted with the conveyor plate (9) and located between the placement box (1) and the conveyor plate (9). The placement box (1) has a through groove for discharging and feeding of the pipette tip body (3). The pusher assembly is disposed on the conveyor plate (9) and includes a clamping mechanism for clamping the pipette tip body (3) and a moving mechanism for driving the clamping mechanism to move.

2. The pipette tip holder according to claim 1, characterized in that, The disinfection assembly also includes a fixing ring (5), a nozzle (6) and a connecting pipe (12); the fixing ring (5) is respectively set on the top inner wall of the placement box (1) and the bottom of the conveyor plate (9); the nozzle (6) is evenly distributed around the fixing ring (5) along the circumference; the two ends of the connecting pipe (12) are respectively connected to the water inlet pipe (7) and the fixing ring (5).

3. A pipette tip holder according to claim 1, characterized in that, The inner top wall of the placement box (1) is provided with a limiting plate (8) for limiting the position of the pipette tip body (3).

4. A pipette tip holder according to claim 1, characterized in that, The placement box (1) is provided with a shelf (2) at the through groove to facilitate the feeding and unloading of the pipette tip body (3).

5. A pipette tip holder according to claim 1, characterized in that, The moving mechanism includes a slide rail (10), a connecting frame (11), and a rack (16); the slide rail (10) is on a conveyor plate (9); the rack (16) is slidably disposed on the slide rail (10), and a driving unit for driving the rack (16) to slide is provided on the slide rail (10); the connecting frame (11) is disposed on the rack (16).

6. A pipette tip holder according to claim 5, characterized in that, The drive unit includes a drive motor (13), a transmission shaft (14), and a gear (15); the drive motor (13) is disposed on the outer wall of the slide rail (10); the transmission shaft (14) is rotatably disposed on the slide rail (10) and connected to the output end of the drive motor (13); the gear (15) is disposed on the transmission shaft (14) and meshes with the rack (16).

7. A pipette tip holder according to claim 5, characterized in that, The clamping mechanism includes a cylinder (17) and a clamping arm (18); the cylinder (17) is rotatably disposed on both sides of the connecting frame (11); the clamping arm (18) is rotatably connected to the telescopic end of the cylinder (17), and the clamping arm (18) is located on both sides of the pipette tip body (3).