An eight-channel pipetting aid integrated with a waste recovery tank

Abstract

This utility model belongs to the field of pipette technology and discloses an eight-channel pipetting aid with an integrated waste liquid recovery tank. It includes a support frame and a mounting frame installed on the lower inner side of the support frame. Two first slide rails are connected side-by-side on the front side of the mounting frame, and a sliding platform is slidably connected to the front side of the two first slide rails. A connecting frame is installed at the top center of the sliding platform. A rack located inside the connecting frame is installed on the top inner side of the support frame, and a gear meshing with the rack is movably inserted into the inner side of the connecting frame. A servo motor is installed on the outer front wall of the connecting frame, and the output end of the servo motor is installed at the front end of the gear. A mounting groove is constructed on the front side of the sliding platform. This solution solves the problem that while existing devices can batch transfer multiple tubes of liquid, the movement of the pipette is not smooth enough, leading to a small amount of liquid overflowing and wasting liquid during injection due to partial pipette deflection.

Description

Technical Field

[0001] This utility model belongs to the field of pipette technology, specifically an eight-channel pipette auxiliary device with an integrated waste liquid recovery tank. Background Technology

[0002] A pipette is a measuring tool used to accurately transfer minute amounts of liquid. It is widely used in laboratory operations in fields such as biology, chemistry, and medicine. In order to improve efficiency by transferring liquids in batches, multi-channel pipetting devices are now commonly used.

[0003] However, the following problems were found in the implementation of the relevant technology: Although the existing device can transfer multiple tubes of liquid in batches, the movement of the pipette is not smooth enough, which causes a small amount of liquid to overflow and be wasted when the liquid is injected due to the partial deviation of the pipette. Utility Model Content

[0004] To address the problems mentioned in the background art, this utility model provides an eight-channel pipetting aid with an integrated waste liquid recovery tank, which has the advantages of smoother movement of the pipette and effectively avoids liquid overflow and waste during pipetting injection.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an eight-channel pipetting aid with an integrated waste liquid recovery tank, comprising a support frame and a mounting frame installed on the lower inner side of the support frame. Two first slide rails are connected side-by-side on the front side of the mounting frame, and a sliding platform is slidably connected to the front side of the two first slide rails. A connecting frame is installed at the top center of the sliding platform. A rack located inside the connecting frame is installed on the top inner side of the support frame, and a gear meshing with the rack is movably inserted into the inner side of the connecting frame. A servo motor is installed on the outer front wall of the connecting frame, and the output end of the servo motor is installed on the gear. At the front end, the sliding table has a mounting groove on its front side, and a linear guide motor is installed in the mounting groove. The output end of the linear guide motor is connected to a sliding block located on the front side of the sliding table. Multiple second slide rails are installed side by side on the front side of the sliding table, and the sliding block is slidably connected to the front side of the multiple second slide rails. Eight pipettes are fixedly inserted side by side on the top of the sliding block, and pipette tips are inserted at the bottom of the pipettes. Eight vacuum pumps are installed side by side on the top of the support frame, and a flexible tube is connected between the output end of the vacuum pump and the top of the corresponding pipette. A waste liquid recovery assembly is installed at the bottom of the sliding table.

[0006] Preferably, the waste liquid recovery assembly includes a recovery housing disposed at the bottom of the sliding platform and two slide bars installed side by side on the top of the recovery housing, and the bottom of the sliding platform is constructed with a slide groove that is slidably connected to the slide bars.

[0007] Preferably, two iron blocks are nested side by side on the rear side of the recycling shell, and two connecting plates located behind the iron blocks are symmetrically connected to the bottom of the sliding platform, with a magnet block nested on the front side of the connecting plates.

[0008] Preferably, the connection points of the eight air pumps and hoses are fitted with top plates, and the top plates are flush with the top of the support frame.

[0009] Preferably, two fixing plates are symmetrically installed at the bottom of the support frame, and two fixing holes are symmetrically opened at the top of the fixing plates.

[0010] Preferably, a nameplate is adhered to the right outer wall of the support frame, and a protective film is adhered to the surface of the nameplate.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model uses a servo motor to drive the gear to rotate, thereby moving the sliding block below the meshing rack. This ensures the smooth movement of the sliding block. During the movement of the sliding block, stability is increased by limiting the movement through two sets of first slide rails and corresponding structures. When controlling the lifting and lowering of the pipette, stability is further increased by limiting the movement through two sets of second slide rails and corresponding structures. The combination of these structures ensures that the pipette remains stable at all times, making the movement of the pipette smoother and effectively preventing liquid spillage and waste during pipette injection.

[0012] 2. If there is still liquid residue inside the pipette after injection, the sliding stage can be moved out of its current position, and then the recovery shell can be moved forward and injection can continue. In this way, the waste liquid can be recovered through the recovery shell. After the recovery is completed, the recovery shell can be reset, making the recovery of waste liquid more convenient. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the connecting frame of this utility model; Figure 3 This is a cross-sectional view of the connecting frame of this utility model; Figure 4 This is a schematic diagram of the structure of the recycling shell of this utility model; Figure 5 This utility model Figure 1 Enlarged view of the structure at point A in the middle.

[0014] In the diagram: 1. Support frame; 2. Mounting frame; 3. First slide rail; 4. Sliding table; 5. Connecting frame; 6. Rack; 7. Servo motor; 8. Gear; 9. Sliding block; 10. Second slide rail; 11. Pipette; 12. Tube; 13. Top plate; 14. Recovery housing; 15. Sliding bar; 16. Iron block; 17. Magnet block; 18. Fixing plate; 19. Sign. Detailed Implementation

[0015] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] like Figures 1 to 5As shown, this utility model provides an eight-channel pipetting aid with an integrated waste liquid recovery tank, including a support frame 1 and a mounting frame 2 installed on the lower inner side of the support frame 1 by multiple sets of screws. Two first slide rails 3 are connected side-by-side to the front of the mounting frame 2 by multiple screws, and a sliding platform 4 is slidably connected to the front of the two first slide rails 3. The sliding platform 4 can slide on the front of the two first slide rails 3 to increase the stability of movement. A connecting frame 5 is installed at the top center of the sliding platform 4 by multiple screws. A rack 6 located inside the connecting frame 5 is installed on the top inner side of the support frame 1 by multiple screws, and a gear 8 that meshes with the rack 6 is movably inserted into the inner side of the connecting frame 5. The rotation of the gear 8 relative to the rack 6 can drive the sliding platform 4 at the bottom of the connecting frame 5 to move. A servo motor 7 is installed on the outer front wall of the connecting frame 5 via a motor mount, and the output end of the servo motor 7 is installed at the front end of the gear 8. The servo motor 7 can drive the gear 8 to rotate. A mounting groove is constructed on the front side of the sliding platform 4, and a linear guide motor is installed in the mounting groove. (Not shown in the figure), the output end of the linear guide motor is connected to a sliding block 9 located on the front side of the sliding table 4 via a connecting seat. The linear guide motor can drive the sliding block 9 to move up and down. Multiple second slide rails 10 are installed side by side on the front side of the sliding table 4 via multiple sets of screws, and the sliding block 9 is slidably connected to the front side of the multiple second slide rails 10. The multiple second slide rails 10 can increase the stability of the movement of the sliding block 9, thereby increasing the stability of the movement of the pipette 11 inside it. Eight pipettes are fixedly inserted side by side on the top of the sliding block 9. Eight pipettes 11 can be used for batch pipetting, and pipette tips are inserted into the bottom of each pipette 11. The top of the support frame 1 has a fixing groove, in which eight vacuum pumps (not shown in the figure) are installed side by side. A hose 12 is connected between the output end of the vacuum pump and the top of the corresponding pipette 11. The vacuum pump can draw air from the corresponding pipette 11 through the hose 12 to draw liquid. The vacuum pump can inject liquid through the pipette 11 when it is inflated. A waste liquid recovery assembly is installed at the bottom of the sliding table 4.

[0017] Specifically, the waste liquid recovery assembly includes a recovery housing 14 disposed at the bottom of the sliding platform 4 and two slide bars 15 mounted side by side on the top of the recovery housing 14. The bottom of the sliding platform 4 is constructed with a slide groove that is slidably connected to the slide bars 15. Through the two sets of this structure, the recovery housing 14 can be moved back and forth at the bottom of the sliding platform 4. By moving the recovery housing 14 forward, waste liquid can be recovered.

[0018] Furthermore, two iron blocks 16 are nested side by side on the rear side of the recycling shell 14. The bottom of the sliding table 4 is symmetrically connected by screws to two connecting plates located on the rear side of the iron blocks 16. A magnet 17 is nested on the front side of the connecting plates. The recycling shell 14 can be fixed by attracting the iron blocks 16 with the magnet 17. Pulling the recycling shell 14 forward will move the two away from each other.

[0019] Furthermore, the connection points of the eight air pumps and the hoses 12 are fitted with top plates 13, and the top plates 13 are flush with the top of the support frame 1. The top plates 13 are snapped into the top of the fixing groove, which can provide a certain degree of protection for the air pumps.

[0020] It is worth noting that two fixing plates 18 are symmetrically installed at the bottom of the support frame 1, and two fixing holes are symmetrically opened at the top of the fixing plates 18. Bolts can be installed in the fixing holes to connect with the external structure, thereby increasing the overall stability of the device.

[0021] It is worth noting that a label 19 is affixed to the right outer wall of the support frame 1. The label 19 has operating instructions marked on its surface so that staff can understand how to use it. The label 19 also has a protective film affixed to its surface.

[0022] Among them, the servo motor 7, linear guide motor, and air pump are existing technologies and will not be described in detail; at the same time, this utility model also includes a power supply, controller, and switch, etc., which are not the main technical points of this patent and will not be described in detail; the "front, back, left, and right" perspectives of this device are as follows: Figure 1 The direction shown in the diagram is the reference.

[0023] Working principle: The linear guide motor drives the sliding block 9 to move down so that the pipette tip at the bottom of the pipette 11 is inserted into the original container. The air pump, in conjunction with the hose 12, evacuates the pipette 11 to extract the corresponding liquid. Then the sliding block 9 is reset. Next, the servo motor 7 drives the gear 8 to rotate relative to the rack 6, which, in conjunction with the two first slide rails 3, stably moves the sliding stage 4 until the pipette 11 is above the container to be injected. Then the sliding block 9 is moved down, and the air pump is used to inflate the pipette to inject the liquid. If there is still liquid residue inside the pipette 11 after injection, the sliding stage 4 can be moved out of its current position, and the recovery housing 14 can be pulled forward to continue injection. In this way, the waste liquid can be recovered through the recovery housing 14. After recovery, the recovery housing 14 is reset and fixed by the magnet 17 adsorbing the iron block 16.

[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An eight-channel pipetting aid integrated with a waste liquid recovery tank, comprising a support frame (1) and a mounting frame (2) mounted on the inner lower part of the support frame (1), characterized in that: Two first slide rails (3) are connected side by side on the front side of the mounting frame (2), and a sliding table (4) is slidably connected to the front side of the two first slide rails (3). A connecting frame (5) is installed at the top center of the sliding table (4). A rack (6) located inside the connecting frame (5) is installed on the top inner side of the support frame (1), and a gear (8) meshing with the rack (6) is movably inserted into the inner side of the connecting frame (5). A servo motor (7) is installed on the outer wall of the front side of the connecting frame (5), and the output end of the servo motor (7) is installed at the front end of the gear (8). A mounting groove is constructed on the front side of the sliding table (4), and a straight... A linear guide motor is provided, and the output end of the linear guide motor is connected to a sliding block (9) located in front of the sliding table (4). Multiple second slide rails (10) are installed side by side on the front side of the sliding table (4), and the sliding block (9) is slidably connected to the front side of the multiple second slide rails (10). Eight pipettes (11) are fixedly inserted side by side on the top of the sliding block (9), and a suction tip is inserted at the bottom of the pipettes (11). Eight vacuum pumps are installed side by side on the top of the support frame (1), and a hose (12) is connected between the output end of the vacuum pump and the top of the corresponding pipette (11). A waste liquid recovery assembly is installed at the bottom of the sliding table (4).

2. The eight-channel pipetting aid for an integrated waste liquid recovery tank according to claim 1, characterized in that: The waste liquid recovery assembly includes a recovery housing (14) disposed at the bottom of the sliding platform (4) and two slide bars (15) installed side by side on the top of the recovery housing (14), and the bottom of the sliding platform (4) is constructed with a slide groove that is slidably connected to the slide bars (15).

3. The eight-channel pipetting aid for an integrated waste liquid recovery tank according to claim 2, characterized in that: Two iron blocks (16) are nested side by side on the rear side of the recycling shell (14). Two connecting plates located behind the iron blocks (16) are symmetrically connected to the bottom of the sliding table (4), and a magnet block (17) is nested on the front side of the connecting plate.

4. The eight-channel pipetting aid for an integrated waste liquid recovery tank according to claim 1, characterized in that: The connection points of the eight air pumps and hoses (12) are fitted with top plates (13), and the top plates (13) are flush with the top of the support frame (1).

5. The eight-channel pipetting aid for an integrated waste liquid recovery tank according to claim 1, characterized in that: The bottom of the support frame (1) is symmetrically equipped with two fixing plates (18), and the top of the fixing plates (18) is symmetrically opened with two fixing holes.

6. The eight-channel pipetting aid for an integrated waste liquid recovery tank according to claim 1, characterized in that: A nameplate (19) is attached to the right outer wall of the support frame (1), and a protective film is attached to the surface of the nameplate (19).

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