Multi-channel liquid adding machine

Abstract

The utility model discloses a multichannel liquid adding machine which comprises a base, supporting frames are arranged on the upper end face of the base and located on the two sides, a top plate is arranged at the upper ends of the supporting frames, a threaded rod is movably arranged on the upper end face of the top plate and located in the middle, and the threaded rod is in threaded connection with the top plate. The lower end of the threaded rod penetrates through the top plate and is rotationally provided with a lifting block, a mounting frame is arranged at the bottom of the lifting block, a sliding rod is arranged in the mounting frame, a moving block is slidably arranged on the sliding rod, a liquid adding box is arranged at the bottom of the moving block, and a liquid adding cylinder is arranged at the bottom of the liquid adding box. Therefore, a user can adjust the distance between the moving block and the liquid adding cylinder by rotating the adjusting nut, and the guide cylinder can drive the guide column and the placement seat to move synchronously during adjustment, so that a container at the upper end of the placement seat is always aligned with the liquid adding cylinder, and the phenomenon of liquid sprinkling is prevented.

Description

Technical Field

[0001] This utility model relates to the field of liquid dispensing machine technology, and more specifically, to a multi-channel liquid dispensing machine. Background Technology

[0002] In laboratory experiments, multiple sets of experiments are typically required to achieve the same result. This allows for comparison of the results from each set to arrive at the final conclusion. This process also prevents deviations in one set of experiments from affecting the final conclusion. Therefore, during experiments, the same amount of reagent is sequentially injected into multiple test tubes or other experimental vessels, allowing the reagent to react in each vessel and yielding separate experimental results. A multi-channel dispensing device is needed for this process, as it can simultaneously dispense liquid from multiple channels, significantly improving work efficiency and the accuracy of experimental or production processes.

[0003] A multi-channel liquid dispensing device is disclosed in a Chinese patent with publication number CN219072990U. Claim 1 states that it includes a push-pull assembly (6), a hoop (7), a moving block (8), an adjusting groove (9), a fastening knob (10), and a bolt hole (11). The push-pull assembly (6) is installed in the middle of the crossbeam (2). The top of the single-channel pipette (4) is fixed with a hoop (7). The moving block (8) is fixed in the middle of one side of the hoop (7). The fastening knob (10) is screwed onto one end of the moving block (8).

[0004] Although the above structure can adjust the distance between the single-channel pipettes, it cannot guarantee that the container at the bottom can be aligned with the single-channel pipette, which can easily lead to spillage when adding liquid, thus wasting some resources.

[0005] Furthermore, when adding liquid to a single-channel pipette, the single-channel pipette needs to be disassembled one by one, which is not only laborious to operate, but also time-consuming during disassembly and installation, thus reducing the overall liquid adding efficiency of the dispensing machine. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] In view of the problems existing in the prior art, this utility model provides a multi-channel liquid dispenser to solve the technical problems mentioned in the background art.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model provides the following technical solution: a multi-channel liquid dispenser, comprising a base, with support frames on both sides of the upper end of the base, a top plate at the upper end of the support frames, a threaded rod movably disposed on the upper end of the top plate at the middle position, the threaded rod being threadedly connected to the top plate, a lifting block rotatably disposed at the lower end of the threaded rod passing through the top plate, a mounting frame at the bottom of the lifting block, a sliding rod inside the mounting frame, a moving block slidably disposed on the sliding rod, a liquid dispensing tank at the bottom of the moving block, a liquid dispensing cylinder at the bottom of the liquid dispensing tank, a lead screw at the upper end of the sliding rod inside the mounting frame, the moving block being movably mounted to the lead screw, an adjusting nut rotatably disposed on the outer wall of the moving block, the adjusting nut being threadedly connected to the lead screw, a guide cylinder at the rear end of the moving block, a guide column slidably disposed inside the guide cylinder, a placement seat at the other end of the guide column, and a liquid storage mechanism at the upper end of the top plate.

[0010] The present invention is further configured such that the liquid storage mechanism includes a storage tank, the storage tank is located at the upper end of the top plate, a liquid addition hose is fixedly provided on the outer wall of the storage tank at the lower end, the other end of the liquid addition hose is connected to the interior of the liquid addition tank, and a micro pump is provided on the liquid addition hose to facilitate adding liquid to the liquid addition tank.

[0011] The present invention is further provided with an observation window on the outer wall of the liquid adding cylinder, and a scale on the outer wall of the observation window, so as to facilitate the viewing of the volume of the liquid to be tested in the liquid adding cylinder.

[0012] The present invention is further configured such that a first conical surface is fixedly provided at the bottom of the liquid filling tank, and a second conical surface is provided on the inner wall of the liquid filling cylinder at the upper end. The first conical surface is located inside the second conical surface and the inclination of the two is equal. A flange is provided at the connection position between the liquid filling tank and the liquid filling cylinder. The two flanges are fixedly installed by bolts, which facilitates the disassembly and cleaning of the liquid filling cylinder.

[0013] The present invention is further configured such that the outer wall of the first conical surface is in close contact with the inner wall of the second conical surface, which facilitates the sealed installation of the liquid filling tank and the liquid filling cylinder.

[0014] The present invention is further provided that the bottom of the liquid adding cylinder is provided with a control valve, which facilitates the addition of the liquid to be tested into the container.

[0015] The present invention is further provided that the upper end surface of the placement seat is provided with a placement groove, so as to facilitate placing the container on the upper end of the placement seat for positioning and storage.

[0016] The present invention is further configured such that a guide rod is fixedly provided at the middle position of the two support frames, and the placement seat is slidably installed with the guide rod to facilitate guiding the placement seat.

[0017] (III) Beneficial Effects

[0018] Compared with the prior art, this utility model provides a multi-channel liquid dispenser, which has the following beneficial effects:

[0019] 1. By setting up lifting blocks, sliding rods, moving blocks, and guide cylinders, users can adjust the distance between multiple moving blocks and the liquid adding cylinder by turning the adjusting nut. At the same time, the guide cylinder will drive the guide column and the placement seat to move synchronously, so that the container at the top of the placement seat is always aligned with the bottom of the liquid adding cylinder, preventing liquid spillage. Furthermore, users can also adjust the height of the lifting blocks by turning the threaded rod to adjust the distance between the liquid outlet end of the liquid adding cylinder and the container, further preventing liquid spillage from affecting the experimental results before the experiment.

[0020] 2. By setting up a storage tank, a liquid addition hose, and a micro pump, the user can control the micro pump to allow the test liquid inside the storage tank to enter the liquid addition cylinder through the liquid addition hose, thereby adding liquid into the liquid addition cylinder. This facilitates subsequent experiments and eliminates the need for frequent disassembly and reassembly of the liquid addition cylinder, thus helping to increase the overall efficiency of liquid addition.

[0021] 3. By setting the first conical surface, the second conical surface, and the flange, the user can disassemble the filling cylinder and the filling tank by removing the bolts on the flange to facilitate cleaning of their inner walls and prevent blockage. Furthermore, by setting the first conical surface and the second conical surface, the sealing of the connection between the filling tank and the filling cylinder can be increased to prevent leakage. Attached Figure Description

[0022] Figure 1 This is an overall schematic diagram of a multi-channel liquid dispenser in its unused state;

[0023] Figure 2 Exploded view of the installation of the liquid filling tank, liquid filling cylinder, liquid filling hose, guide cylinder, guide column and placement seat on the movable block;

[0024] Figure 3 Exploded view of the installation of the filling tank and filling cylinder;

[0025] Figure 4 A schematic diagram showing the positions of the second conical surface, observation window, scale, and flange on the liquid filling cylinder;

[0026] Figure 5 This is a schematic diagram showing the installation positions of the threaded rod and lifting block on the top plate.

[0027] In the diagram: 1. Base; 2. Support frame; 3. Top plate; 4. Threaded rod; 5. Lifting block; 6. Mounting frame; 7. Slide rod; 8. Moving block; 9. Liquid filling tank; 10. Liquid filling cylinder; 11. Lead screw; 12. Adjusting nut; 13. Guide cylinder; 14. Guide column; 15. Placement seat; 16. Storage tank; 17. Liquid filling hose; 18. Micro pump; 19. Observation window; 20. Scale; 21. First conical surface; 22. Second conical surface; 23. Flange; 24. Control valve; 25. Placement slot; 26. Guide rod. Detailed Implementation

[0028] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0030] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0031] Please see Figure 1-5 A multi-channel liquid dispenser includes a base 1, with support frames 2 on both sides of the upper surface of the base 1. A top plate 3 is located at the upper end of the support frame 2. A threaded rod 4 is movably mounted on the upper surface of the top plate 3 at its center, threadedly connected to the top plate 3. A lifting block 5 is rotatably mounted on the lower end of the threaded rod 4, passing through the top plate 3. A mounting frame 6 is located at the bottom of the lifting block 5. A sliding rod 7 is located inside the mounting frame 6, and a moving block 8 slides along the sliding rod 7. A liquid dispensing tank 9 is located at the bottom of the moving block 8, and a liquid dispensing cylinder is located at the bottom of the liquid dispensing tank 9. 10. A lead screw 11 is provided at the upper end of the slide rod 7 and inside the mounting bracket 6. The moving block 8 is movably installed with the lead screw 11. An adjusting nut 12 is rotatably provided on the outer wall of the moving block 8. The adjusting nut 12 is threadedly connected to the lead screw 11. A guide cylinder 13 is provided at the rear end of the moving block 8. A guide column 14 is slidably provided inside the guide cylinder 13. A placement seat 15 is provided at the other end of the guide column 14. A liquid storage mechanism is provided at the upper end of the top plate 3. A control valve 24 is provided at the bottom of the liquid filling cylinder 10. A placement groove 25 is opened on the upper surface of the placement seat 15.

[0032] In this embodiment, the liquid storage mechanism includes a storage tank 16, which is located at the upper end of the top plate 3. A liquid addition hose 17 is fixedly provided on the outer wall of the storage tank 16 at the lower end. The other end of the liquid addition hose 17 is connected to the interior of the liquid addition tank 9. A micro pump 18 is provided on the liquid addition hose 17. An observation window 19 is provided on the outer wall of the liquid addition cylinder 10. A scale 20 is provided on the outer wall of the observation window 19.

[0033] More specifically, the user can adjust the distance between the multiple moving blocks 8 and the liquid filling cylinder 10 by rotating the adjusting nut 12. At the same time, the guide cylinder 13 will drive the guide column 14 and the placement seat 15 to move synchronously, so that the container at the upper end of the placement seat 15 is always aligned with the lower end of the liquid filling cylinder 10, preventing spillage. The user can also adjust the height of the lifting block 5 by rotating the threaded rod 4 to adjust the distance between the liquid outlet end of the liquid filling cylinder 10 and the container, further preventing liquid spillage from affecting the experimental results before the experiment. When adding liquid to the liquid filling cylinder 10, the micro pump 18 can be controlled to allow the test liquid inside the storage tank 16 to enter the liquid filling cylinder 10 through the liquid filling hose 17, so as to add liquid into the liquid filling cylinder 10, thereby facilitating the subsequent experiment.

[0034] Please see Figure 1 and Figure 4 As an implementation method for disassembling the liquid filling cylinder 10 for easy cleaning: a first conical surface 21 is fixedly provided at the bottom of the liquid filling tank 9, and a second conical surface 22 is provided on the inner wall of the liquid filling cylinder 10 at the upper end. The first conical surface 21 is located inside the second conical surface 22 and the inclination of the two is equal. A flange 23 is provided at the connection position between the liquid filling tank 9 and the liquid filling cylinder 10. The two flanges 23 are fixedly installed by bolts. The outer wall of the first conical surface 21 is in close contact with the inner wall of the second conical surface 22.

[0035] Specifically, users can disassemble the filling cylinder 10 and the filling tank 9 by removing the bolts on the flange 23 to facilitate cleaning of their inner walls and prevent blockage. Furthermore, by setting the first conical surface 21 and the second conical surface 22, the sealing of the connection between the filling tank 9 and the filling cylinder 10 can be increased to prevent leakage.

[0036] Please refer to Figures 2-4 As a further embodiment for guiding the placement seat 15: a guide rod 26 is fixedly provided at the middle position of the two support frames 2, and the placement seat 15 is slidably installed with the guide rod 26.

[0037] Specifically, the placement seat 15 can be guided to make its movement more stable.

[0038] In summary, during use, the user can adjust the distance between the multiple moving blocks 8 and the liquid adding cylinder 10 by rotating the adjusting nut 12. Simultaneously, the guide cylinder 13 will drive the guide column 14 and the placement seat 15 to move synchronously, ensuring that the container on the upper end of the placement seat 15 is always aligned with the lower end of the liquid adding cylinder 10, preventing spillage. Furthermore, the user can adjust the height of the lifting block 5 by rotating the threaded rod 4 to adjust the distance between the liquid outlet end of the liquid adding cylinder 10 and the container, further preventing liquid spillage from affecting the experiment before it begins. The test results show that when adding liquid to the liquid filling cylinder 10, the micro pump 18 can be controlled to allow the test liquid inside the storage tank 16 to enter the liquid filling cylinder 10 through the liquid filling hose 17, so as to add liquid into the liquid filling cylinder 10, thereby facilitating subsequent experiments. After use, the liquid filling cylinder 10 and the liquid filling tank 9 can be separated by removing the bolts on the flange 23 to facilitate cleaning of their inner walls and prevent blockage. Furthermore, by setting the first conical surface 21 and the second conical surface 22, the sealing of the connection between the liquid filling tank 9 and the liquid filling cylinder 10 can be increased to prevent leakage.

[0039] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A multi-channel liquid dispenser, comprising a base (1), characterized in that: The base (1) has support frames (2) on its upper surface and on both sides. A top plate (3) is provided at the upper end of each support frame (2). A threaded rod (4) is movably provided on the upper surface of the top plate (3) at its center. The threaded rod (4) is threadedly connected to the top plate (3). A lifting block (5) is rotatably provided at the lower end of the threaded rod (4) passing through the top plate (3). A mounting frame (6) is provided at the bottom of the lifting block (5). A sliding rod (7) is provided inside the mounting frame (6). A moving block (8) slides on the sliding rod (7). A liquid filling tank (9) is provided at the bottom of the moving block (8). The bottom of the liquid filling tank (9) is provided with a liquid filling cylinder (10). The upper end of the slide rod (7) and inside the mounting bracket (6) is provided with a lead screw (11). The moving block (8) is movably installed with the lead screw (11). An adjusting nut (12) is rotatably provided on the outer wall of the moving block (8). The adjusting nut (12) is threadedly connected to the lead screw (11). The rear end of the moving block (8) is provided with a guide cylinder (13). A guide column (14) is slidably provided inside the guide cylinder (13). The other end of the guide column (14) is provided with a placement seat (15). The upper end of the top plate (3) is provided with a liquid storage mechanism.

2. The multi-channel liquid dispenser according to claim 1, characterized in that: The liquid storage mechanism includes a storage tank (16), which is located at the upper end of the top plate (3). A liquid addition hose (17) is fixedly provided on the outer wall of the storage tank (16) at the lower end. The other end of the liquid addition hose (17) is connected to the interior of the liquid addition tank (9). A micro pump (18) is provided on the liquid addition hose (17).

3. A multi-channel liquid dispenser according to claim 2, characterized in that: The outer wall of the liquid filling cylinder (10) is provided with an observation window (19), and the outer wall of the observation window (19) is provided with a scale (20).

4. A multi-channel liquid dispenser according to claim 1, characterized in that: The bottom of the liquid filling tank (9) is fixedly provided with a first conical surface (21), and the inner wall of the liquid filling cylinder (10) is provided with a second conical surface (22) at the upper end. The first conical surface (21) is located inside the second conical surface (22) and the inclination of the two is equal. A flange (23) is provided at the connection position between the liquid filling tank (9) and the liquid filling cylinder (10), and the two flanges (23) are fixedly installed by bolts.

5. A multi-channel liquid dispenser according to claim 4, characterized in that: The outer wall of the first conical surface (21) is in close contact with the inner wall of the second conical surface (22).

6. A multi-channel liquid dispenser according to claim 1, characterized in that: The bottom of the liquid filling cylinder (10) is equipped with a control valve (24).

7. A multi-channel liquid dispenser according to claim 1, characterized in that: The upper surface of the placement seat (15) is provided with a placement groove (25).

8. A multi-channel liquid dispenser according to claim 1, characterized in that: A guide rod (26) is fixedly provided at the middle position of the two support frames (2), and the placement seat (15) is slidably installed with the guide rod (26).

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