Cell dispenser with port contamination prevention

Abstract

The utility model provides a cell dispenser with port anti -pollution, including support pipe, set up negative pressure mechanism in support pipe, and connect the suction tube in one end of negative pressure mechanism, and support pipe outside coaxial has with its rotation connection outer tube, and in the inner tube of outer tube sliding connection, the bottom coaxial connection of inner tube has the protective tube, and the suction tube is located in the protective tube, in the bottom of protective tube symmetry is provided with the protective cover, and open the opening in the bottom of protective tube, and the opening is connected with the pivot, and the side close to the opening of protective cover is fixedly connected with the support seat, and the support seat extends to the opening and rotates with the pivot, the pivot is coaxial with torsional spring, one end of torsional spring and support seat are connected, and the other end of torsional spring and opening inner wall are connected. The utility model can push the protective cover, the protective cover is in the open state, and then realizes normal use of the suction tube, and the protective cover suction tube plays the role of sealing and preventing pollution after the suction tube is collected to the protective tube.

Description

Technical Field

[0001] This utility model relates to the field of cell dispenser technology, specifically a cell dispenser with a port designed to prevent contamination. Background Technology

[0002] An automatic dispensing device is a tool that dispenses liquid from one container to another within a certain range. It is widely used in fields such as biology and chemistry.

[0003] Existing automated dispensing devices typically lack protective mechanisms during use. This not only fails to prevent the pipette from breaking upon drop but also fails to effectively prevent contamination of the pipette tip. This can lead to device damage, disruption of operations, and even injury to personnel if the vials are damaged. Furthermore, contamination can affect the validity of experimental data. Therefore, we propose a cell dispensing device with port contamination protection. Utility Model Content

[0004] To address the shortcomings of existing dispensing devices, which cannot prevent the pipette from breaking when the dispensing device falls and cannot effectively prevent contamination at the end of the pipette, this invention provides a cell dispensing device with port contamination prevention. This device effectively achieves protection and contamination prevention, greatly improves the practicality of the device, and solves the problems mentioned in the background art.

[0005] The technical solution of this utility model is implemented as follows: A cell dispenser with port anti-contamination includes a support tube, a negative pressure mechanism is set inside the support tube, and a pipette is connected to one end of the negative pressure mechanism. An outer tube is coaxially provided outside the support tube and rotatably connected thereto, and an inner tube is slidably connected inside the outer tube. A protective tube is coaxially connected to the bottom of the inner tube, and the pipette is located inside the protective tube. Protective covers are symmetrically arranged at the bottom of the protective tube, and an opening is opened at the bottom of the protective tube. A rotating shaft is connected inside the opening. A support seat is fixedly connected to the side of the protective cover near the opening. The support seat extends into the opening and is rotatably connected to the rotating shaft. A torsion spring is coaxially provided on the rotating shaft. One end of the torsion spring is connected to the support seat, and the other end of the torsion spring is connected to the inner wall of the opening.

[0006] Optionally, the upper end of the outer tube is connected to the outer wall of the support tube via a bearing housing.

[0007] Optionally, the outer wall of the inner tube is provided with external threads, and the inner wall of the outer tube is provided with internal threads, so that the inner tube and the outer tube are connected by internal and external threads. The outer wall of the inner tube is symmetrically provided with sliding grooves, and the slider is vertically connected to the outer wall of the support tube. The slider and the sliding groove are slidably connected.

[0008] Optionally, the negative pressure mechanism includes a telescopic mechanism, a chamber is provided inside the support tube, the free end of the telescopic mechanism extends toward the suction tube, and a piston is connected to the free end of the telescopic mechanism, with the outer wall of the piston and the inner wall of the chamber in clearance fit.

[0009] Optionally, the telescopic mechanism is an electric telescopic rod, and also includes a control switch, which is connected to the telescopic mechanism.

[0010] Optionally, a limiting groove is provided on one end of the support tube near the protective tube, and a limiting tube is coaxially provided at the end of the limiting groove. The suction tube is coaxially connected inside the limiting tube and abuts against the inner wall of the limiting groove.

[0011] Optionally, an annular seat is coaxially connected to the inner wall of the support tube, and a limiting seat is coaxially connected to the end of the telescopic mechanism. When the telescopic mechanism passes through the annular seat, the limiting seat and the annular seat abut against each other, and the end of the support tube is sealed by an end cap.

[0012] Optionally, anti-slip textures are provided on the outer walls of the end caps and outer tubes.

[0013] Compared with existing technologies, this invention controls the inner tube to slide within the outer tube, causing the protective tube to slide outside the straw. The protective cover then seals the end of the protective tube. When the protective tube moves upward, the straw pushes the protective cover, opening it and enabling normal use of the straw. After the straw is retracted into the protective tube, the protective cover returns to its initial position under the action of a torsion spring, sealing the straw and preventing contamination. This invention not only has a simple structure but also effectively achieves protection and contamination prevention, greatly improving the practicality of the device. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 .

[0016] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 .

[0017] Figure 3 This is a schematic diagram of the bottom structure of this utility model.

[0018] Figure 4 For the present utility model Figure 3 A magnified view of part A in the image.

[0019] Figure 5 This is a cross-sectional view of the present invention.

[0020] In the diagram: 1. End cap; 2. Control switch; 3. Support tube; 4. Bearing seat; 5. Anti-slip texture; 6. Outer tube; 7. Slider; 8. External thread; 9. Slide groove; 10. Protective tube; 11. Limiting seat; 12. Inner tube; 13. Opening; 14. Protective cover; 15. Support seat; 16. Torsion spring; 17. Rotating shaft; 18. Suction tube; 19. Limiting tube; 20. Limiting groove; 21. Piston; 22. Chamber; 23. Telescopic mechanism; 24. Annular seat. Detailed Implementation

[0021] The technical solution of this utility model will be clearly and completely described below with reference to its embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] Reference Figures 1 to 5 This utility model provides a technical solution: a cell dispenser with anti-contamination port, including a support tube 3, a negative pressure mechanism inside the support tube 3, the negative pressure mechanism including a telescopic mechanism 23, a chamber 22 inside the support tube 3, the free end of the telescopic mechanism 23 extending towards the suction tube 18, and a piston 21 connected to the free end of the telescopic mechanism 23, with a clearance fit between the outer wall of the piston 21 and the inner wall of the chamber 22, the telescopic mechanism 23 being an electrically operated telescopic rod, and this utility model also includes a control switch 2, which is connected to the telescopic mechanism 23, such as... Figure 5 As shown, under the telescopic action of the telescopic mechanism 23, the piston 21 can be driven to slide and adjust within the chamber 22. In turn, under the action of negative pressure, cells can be adsorbed and dispensed, and automatic dispensing operation is realized, which greatly improves the practicality of the device.

[0023] like Figure 5 As shown, a suction tube 18 is connected to one end of the negative pressure mechanism, and a limiting groove 20 is opened on one end of the support tube 3. A limiting tube 19 is coaxially set at the end of the limiting groove 20. In actual installation, one end of the suction tube 18 is coaxially connected to the limiting tube 19 and abuts against the inner wall of the limiting groove 20. The limiting tube 19 is set as a rubber tube, which can increase the friction between the inner wall of the limiting tube 19 and the outer wall of the suction tube 18, thereby preventing the suction tube 18 from shaking with the device and ensuring the normal dispensing.

[0024] like Figure 1 , 2As shown, for the protection and dust prevention of the end of the straw 18, an outer tube 6 is coaxially provided with the support tube 3 and rotatably connected to it. The upper end of the outer tube 6 is connected to the outer wall of the support tube 3 through a bearing seat 4, and the inner tube 12 is slidably connected inside the outer tube 6. The outer wall of the inner tube 12 is provided with an external thread 8, and the inner wall of the outer tube 6 is provided with an internal thread, connecting the inner tube 12 and the outer tube 6 through the internal thread and the external thread 8. The outer wall of the inner tube 12 is symmetrically provided with a sliding groove 9, and a slider 7 is vertically connected to the outer wall of the support tube 3. The slider 7 and the sliding groove 9 are slidably connected. When the outer tube 6 is rotated, the inner tube 12 can be rotated inside the outer tube 6. Due to the connection between the slider 7 and the sliding groove 9, the inner tube 12 can be extended and slid within the outer tube 6.

[0025] Meanwhile, a protective tube 10 is coaxially connected to the bottom of the inner tube 12, and the straw 18 is located inside the protective tube 10. In actual use, a protective cover 14 is symmetrically arranged at the bottom of the protective tube 10, and an opening 13 is opened at the bottom of the protective tube 10. A rotating shaft 17 is connected inside the opening 13. A support base 15 is fixedly connected to the side of the protective cover 14 near the opening 13. The support base 15 extends into the opening 13 and is rotatably connected to the rotating shaft 17. A torsion spring 16 is coaxially arranged on the rotating shaft 17. One end of the torsion spring 16 is connected to the support base 15, and the other end of the torsion spring 16 is connected to the inner wall of the opening 13.

[0026] In summary, when using this cell dispenser with anti-contamination port, the inner tube 12 is controlled to slide within the outer tube 6, causing the protective tube 10 to slide outside the straw 18. The protective cap 14 seals the end of the protective tube 10, thus protecting the end of the straw 18. When the straw 18 is needed, it moves the protective tube 10 upward, which pushes the protective cap 14, opening the cap and enabling normal use of the straw 18. After the straw 18 is retracted into the protective tube 10, the protective cap 14 returns to its initial position under the action of the torsion spring 16, sealing the straw 18 and preventing contamination.

[0027] For the installation and disassembly of the device, an annular seat 24 is coaxially connected to the inner wall of the support tube 3, and a limiting seat 11 is coaxially connected to the end of the telescopic mechanism 23. When the telescopic mechanism 23 passes through the annular seat 24, the limiting seat 11 and the annular seat 24 abut against each other, and the end of the support tube 3 is sealed by the end cap 1. Furthermore, anti-slip textures 5 are provided on the end cap 1 and the outer wall of the outer tube 6, which can improve the friction of their surfaces, greatly facilitate use, and effectively improve the practicality of the device.

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

Claims

1. A cell dispenser with port contamination prevention, comprising a support tube (3), characterized in that, A negative pressure mechanism is set inside the support tube (3), and a suction tube (18) is connected to one end of the negative pressure mechanism. An outer tube (6) is coaxially connected to the support tube (3), and an inner tube (12) is slidably connected inside the outer tube (6). A protective tube (10) is coaxially connected to the bottom of the inner tube (12), and the suction tube (18) is located inside the protective tube (10). A protective cover (14) is symmetrically provided at the bottom of the protective tube (10), and an opening (13) is opened at the bottom of the protective tube (10). A rotating shaft (17) is connected inside the opening (13). A support seat (15) is fixedly connected to the side of the protective cover (14) near the opening (13). The support seat (15) extends into the opening (13) and is rotatably connected to the rotating shaft (17). A torsion spring (16) is coaxially mounted on the rotating shaft (17). One end of the torsion spring (16) is connected to the support base (15), and the other end of the torsion spring (16) is connected to the inner wall of the opening (13).

2. The cell dispenser with port contamination prevention of claim 1, wherein, The upper end of the outer tube (6) is connected to the outer wall of the bearing seat (4) and the support tube (3).

3. The cell dispenser with port contamination prevention of claim 2, wherein, The inner tube (12) has an external thread (8) on its outer wall and the outer tube (6) has an internal thread on its inner wall. The inner tube (12) and the outer tube (6) are connected by the internal thread and the external thread (8). The inner tube (12) has symmetrical grooves (9) on its outer wall, and a slider (7) is vertically connected to the outer wall of the support tube (3). The slider (7) and the groove (9) are slidably connected.

4. The cell dispenser with port contamination prevention of any one of claims 1-3, wherein, The negative pressure mechanism includes a telescopic mechanism (23), a chamber (22) is provided inside the support tube (3), the free end of the telescopic mechanism (23) extends toward the suction tube (18), and a piston (21) is connected to the free end of the telescopic mechanism (23), and the outer wall of the piston (21) and the inner wall of the chamber (22) are fitted with a clearance.

5. The cell dispenser with port contamination prevention of claim 4, wherein, The telescopic mechanism (23) is an electric telescopic rod, and also includes a control switch (2) to connect the control switch (2) and the telescopic mechanism (23).

6. The cell dispenser with port contamination prevention of claim 5, wherein, A limiting groove (20) is opened on one end of the support tube (3) near the protective tube (10), and a limiting tube (19) is coaxially set at the end of the limiting groove (20). The suction tube (18) is coaxially connected in the limiting tube (19) and abuts against the inner wall of the limiting groove (20).

7. The cell dispenser with port contamination prevention of claim 5, wherein, A ring seat (24) is coaxially connected to the inner wall of the support tube (3), and a limiting seat (11) is coaxially connected to the end of the telescopic mechanism (23). When the telescopic mechanism (23) passes through the ring seat (24), the limiting seat (11) and the ring seat (24) abut against each other, and the end of the support tube (3) is sealed by the end cap (1).

8. The cell dispenser with port contamination prevention of claim 7, wherein, Anti-slip textures (5) are provided on the outer walls of the end cap (1) and the outer tube (6).

Images