Full-automatic quantitative solution separating and taking device

By designing a fully automated solution quantitative dispensing device, and utilizing a servo motor to drive a worm gear and lead screw mechanism, the automated control of the pipette is achieved, solving the problem of insufficient accuracy in the dispensing of trace liquids in existing technologies, and realizing the accurate dispensing of trace liquids.

CN223697799UActive Publication Date: 2025-12-23NANJING PRODUCT QUALITY SUPERVISION & INSPECTION INSTITUTE (NANJING QUALITY DEVELOPMENT & ADVANCED TECHNOLOGY APPLICATION RESEARCH INSTITUTE)
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Patent Information

Application Number
CN202423173596.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-23
Publication Date
2025-12-23
Estimated Expiration
2034-12-23

AI Technical Summary

Technical Problem

Existing technologies cannot accurately separate trace amounts of liquid, and cannot meet the experimental requirements.

Method used

A fully automated solution quantitative dispensing device was designed. A servo motor drives a worm gear mechanism and a lead screw mechanism to realize the horizontal and rotary movements of the pipette. Combined with the rotation of the sample tray, it enables automatic replacement of pipettes of different capacities and precise injection of solutions.

Benefits of technology

It enables precise separation of trace liquids, improves the automation and accuracy of experiments, and meets the requirements for high-precision separation of trace liquids.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a full-automatic quantitative solution separating and taking device which comprises a base, and a solution taking assembly is arranged on the top of the base. An auxiliary block is fixedly connected to the inner wall of the assembling box, the first worm is rotatably connected with one side of the auxiliary block, a mounting groove is formed in the disc block, an L-shaped plate is fixedly connected to the inner wall of the mounting groove, the small lead screw is rotatably connected with one side of the L-shaped plate, and a second nut block is in threaded connection with the outer wall of the small lead screw. And a fixing plate at one end of the second nut block is provided with a pipettor. The utility model relates to the technical field of quantitative solution separation. According to the full-automatic quantitative solution separating and taking device, a small lead screw is driven to rotate by starting a corresponding small driving motor, the small lead screw rotates, under the limitation of the shape of a mounting groove, a second nut block is promoted to move downwards, and then the second nut block drives a pipettor to move downwards, so that a sharp nozzle of the pipettor extends into a container to take a solution.
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Description

TECHNICAL FIELD

[0001] The utility model relates to solution quantitative separation technical field, concretely is a kind of full-automatic solution quantitative separation device. BACKGROUND

[0002] Solution quantitative separation refers to the accurate amount of solution is taken by certain method to meet the needs of experiment or analysis, and sampling solution needs to use pipette.

[0003] Each pipette has specific range, generally speaking, the smaller the range, the higher the precision, but the smaller volume of liquid can be separated;And the pipette of large range precision will reduce when separating small volume liquid, cannot satisfy the demand of accurate separation of trace liquid, so it needs further improvement.

[0004] Therefore, the utility model provides a kind of full-automatic solution quantitative separation device to solve above-mentioned problem. INVENTION CONTENTS

[0005] In view of the deficiencies of prior art, the utility model provides a kind of full-automatic solution quantitative separation device, solves above-mentioned problem.

[0006] To achieve the above object, the utility model is realized by the following technical scheme: a kind of full-automatic solution quantitative separation device, including base, the top of the base is provided with liquid taking assembly;The top of the base is also provided with auxiliary assembly;The liquid taking assembly includes assembly box, rotationally connected between the inner wall of the assembly box there is shaft, the outer wall of the shaft is fixedly connected with first worm wheel, the inner wall of the assembly box is fixedly installed with second servo motor, the output shaft of the second servo motor is fixedly connected with first worm, the inner wall of the assembly box is fixedly connected with auxiliary block, the first worm is rotatably connected with the side of auxiliary block, the first worm is engaged with first worm wheel, one end of the shaft is fixedly connected with disc block, the inside of the disc block is provided with installation groove, the inner wall of the installation groove is fixedly installed with small driving motor, the inner wall of the installation groove is fixedly connected with L-shaped plate, the output shaft of the small driving motor is fixedly connected with small lead screw, the small lead screw is rotatably connected with the side of L-shaped plate, the outer wall of the small lead screw is screw-connected with second nut block, the second nut block is slidably connected with the inside of L-shaped plate, the end of the second nut block is fixedly installed with pipette.

[0007] Further, the top of the base is fixedly connected with mounting plate, rotationally connected with translation screw between two mounting plates, the outer wall of the translation screw is screw-connected with first nut block, the bottom of the first nut block is fixedly connected with assembly box, fixedly connected with limiting rod between two mounting plates, the limiting rod passes through first nut block and is movably connected with it.

[0008] By adopting the technical scheme, horizontal movement of the pipette is controlled.

[0009] Further, a first servo motor is fixedly installed on one side of the mounting plate, and an output shaft of the first servo motor is fixedly connected with one end of the translation screw rod.

[0010] By adopting the technical scheme, the translation screw rod is driven to rotate by power.

[0011] Further, the auxiliary assembly comprises a protective shell, a central shaft is rotatably connected with the top of the base, the central shaft penetrates through the top of the protective shell, a sample disc is fixedly connected with one end of the central shaft, a slot is formed in the inside of the sample disc, and a second worm wheel is fixedly connected with the outer wall of the central shaft.

[0012] By adopting the technical scheme, the test tube is placed.

[0013] Further, a second worm is rotatably connected between the inner walls of the protective shell, the second worm is engaged with the second worm wheel, a third servo motor is fixedly installed on the top of the base, and an output shaft of the third servo motor is fixedly connected with one end of the second worm.

[0014] By adopting the technical scheme, the sample disc can be rotated.

[0015] Further, a placement table is fixedly connected with the top of the base.

[0016] By adopting the technical scheme, the container containing the sample is placed.

[0017] Advantages

[0018] The utility model provides a full -automatic solution quantitative dispensing device. Compared with prior art has the following beneficial effects:

[0019] 1、the full -automatic solution quantitative dispensing device, the container containing the solution sample is placed on the placement table, the test tube is inserted into the slot, the third servo motor is started and drives the second worm to rotate, the second worm drives the second worm wheel to rotate, the second worm wheel drives the central shaft to rotate, and the central shaft can drive the sample disc to rotate and drive the test tubes in each slot to rotate.

[0020] 2、The full-automatic solution quantitative pipetting device is characterized in that one end of each second nut block is fixedly installed with a pipettor of different capacity and size, different capacity and size pipettors can be replaced according to experimental requirements, the second servo motor is started to drive the first worm to rotate, the first worm drives the first worm gear to rotate, the first worm gear drives the rotating shaft to rotate, the rotating shaft drives the disc block to rotate, then the pipettor of different capacity and size can be replaced, the small driving motor is started to drive the small lead screw to rotate, the small lead screw rotates and is limited in the installation groove, the second nut block is driven to move downwards, the second nut block drives the pipettor to move downwards to make the sharp nozzle of the pipettor extend into the container to take liquid, after the pipetting is completed, the first servo motor is started to drive the translation lead screw to rotate, the translation lead screw rotates and is limited by the limiting rod to drive the first nut block to move horizontally to control the pipettor to move above the test tube, and then the solution is injected into the test tube. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor under the premise of not paying creative labor.

[0022] Figure 1 It is the external structure perspective view of the present application;

[0023] Figure 2 It is the structure side view of the present application;

[0024] Figure 3 It is the partial structure view of the present application;

[0025] Figure 4 It is the structure enlarged view of A in the present application;

[0026] Figure 5 It is the structure plan view of the present application;

[0027] Figure 6 It is the overall structure side view of the present application after removing the L-shaped plate.

[0028] In the figure: 1, base; 2, liquid taking assembly; 21, mounting plate; 22, translation screw rod; 23, limiting rod; 24, first nut block; 25, first servo motor; 26, assembly box; 27, second servo motor; 28, auxiliary block; 29, first worm; 210, rotating shaft; 211, first worm wheel; 212, disc block; 213, mounting groove; 214, L-shaped plate; 215, small driving motor; 216, small screw rod; 217, second nut block; 218, pipette; 3, auxiliary assembly; 31, protective shell; 32, central shaft; 33, second worm wheel; 34, butt joint block; 35, second worm; 36, third servo motor; 37, placing table; 38, sample disc; 39, slot. DETAILED DESCRIPTION

[0029] It should be noted that in the description of the embodiments of the present application, the terms "front, back, left, right, up, down" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. The terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium; it can be the communication between the two elements inside. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0030] The present application will be further described in detail below with reference to the drawings and examples.

[0031] Reference Figures 1 to 6The embodiment of the application provides a full-automatic solution quantitative taking device, which comprises a base 1, the top of the base 1 is provided with a liquid taking assembly 2; the top of the base 1 is also provided with an auxiliary assembly 3; the liquid taking assembly 2 comprises an assembling box 26, a rotating shaft 210 is rotatably connected between the inner walls of the assembling box 26, the outer wall of the rotating shaft 210 is fixedly connected with a first worm wheel 211, a second servo motor 27 is fixedly installed on the inner wall of the assembling box 26, a first worm 29 is fixedly connected to the output shaft of the second servo motor 27, the inner wall of the assembling box 26 is fixedly connected with an auxiliary block 28, the first worm 29 is rotatably connected to one side of the auxiliary block 28, the first worm 29 is engaged with the first worm wheel 211, one end of the rotating shaft 210 is fixedly connected with a disc block 212, an installation groove 213 is formed in the inside of the disc block 212, a small driving motor 215 is fixedly installed on the inner wall of the installation groove 213, an L-shaped plate 214 is fixedly connected to the inner wall of the installation groove 213, a small lead screw 216 is fixedly connected to the output shaft of the small driving motor 215, the small lead screw 216 is rotatably connected to one side of the L-shaped plate 214, the outer wall of the small lead screw 216 is threadedly connected with a second nut block 217, the second nut block 217 is slidably connected to the inside of the L-shaped plate 214, a pipette 218 is fixedly installed on one end of the second nut block 217. The top of the base 1 is fixedly connected with a mounting plate 21, a translation lead screw 22 is rotatably connected between the two mounting plates 21, the outer wall of the translation lead screw 22 is threadedly connected with a first nut block 24, the bottom of the first nut block 24 is fixedly connected with the assembling box 26, a limiting rod 23 is fixedly connected between the two mounting plates 21, the limiting rod 23 penetrates through the first nut block 24 and is movably connected with the first nut block 24. A first servo motor 25 is fixedly installed on one side of the mounting plate 21, the output shaft of the first servo motor 25 is fixedly connected with one end of the translation lead screw 22.

[0032] In specific implementation, one end of each second nut block 217 is fixedly installed with a pipette 218 of different capacity and size, according to the experimental requirements, the second servo motor 27 is started to drive the first worm 29 to rotate, the first worm 29 drives the first worm wheel 211 to rotate, the first worm wheel 211 drives the rotating shaft 210 to rotate, the rotating shaft 210 drives the disc block 212 to rotate, then the pipette 218 of different capacity and size can be replaced, then the corresponding small driving motor 215 is started to drive the small lead screw 216 to rotate, the small lead screw 216 rotates and is limited by the shape of the installation groove 213, so that the second nut block 217 moves downwards, the second nut block 217 drives the pipette 218 to move downwards to make the sharp nozzle of the pipette 218 extend into a container to take liquid, after the liquid taking is completed, the first servo motor 25 is started to drive the translation lead screw 22 to rotate, the translation lead screw 22 rotates and is limited by the limiting rod 23, so that the first nut block 24 moves horizontally to control the pipette 218 to move above a test tube, so that the solution is injected into the test tube.

[0033] Reference Figures 1 to 6 In one aspect of the embodiment, the auxiliary assembly 3 comprises a protective shell 31, the top of the base 1 is rotationally connected with a central shaft 32, the central shaft 32 penetrates through the top of the protective shell 31, one end of the central shaft 32 is fixedly connected with a sample disc 38, the inside of the sample disc 38 is provided with a slot 39, and the outer wall of the central shaft 32 is fixedly connected with a second worm wheel 33. The inner wall of the protective shell 31 is fixedly connected with a butt joint block 34, the two butt joint blocks 34 are rotationally connected with a second worm 35, the second worm 35 is engaged with the second worm wheel 33, the top of the base 1 is fixedly installed with a third servo motor 36, and one end of the output shaft of the third servo motor 36 is fixedly connected with the second worm 35. The top of the base 1 is fixedly connected with a placing table 37.

[0034] In specific implementation: the container containing the solution sample is placed on the placing table 37, the test tube is inserted into the slot 39, the third servo motor 36 is started to drive the second worm 35 to rotate, the second worm 35 drives the second worm wheel 33 to rotate, the second worm wheel 33 drives the central shaft 32 to rotate, and the central shaft 32 can drive the sample disc 38 to rotate to drive the test tubes in the slots 39 to rotate, and when one test tube is filled, the next test tube can be moved to the filling position.

[0035] In the scheme, all the electrical equipment is powered by an external power supply.

[0036] Working principle: the container containing the solution sample is placed on the placement table 37, the test tube is inserted into the slot 39, the third servo motor 36 is started to drive the second worm 35 to rotate, the second worm 35 drives the second worm wheel 33 to rotate, the second worm wheel 33 drives the center shaft 32 to rotate, the center shaft 32 can drive the sample disc 38 to rotate and the test tubes in each slot 39 to rotate, when the perfusion of a test tube is completed, the next test tube can be moved to the perfusion position, one end of each second nut block 217 is fixedly installed with a pipette 218 of different capacity and size, according to the experimental requirements, the second servo motor 27 is started to drive the first worm 29 to rotate, the first worm 29 drives the first worm wheel 211 to rotate, the first worm wheel 211 drives the rotating shaft 210 to rotate, the rotating shaft 210 can drive the disc block 212 to rotate, and then the pipette 218 of different capacity and size can be replaced, then the small driving motor 215 is started to drive the small lead screw 216 to rotate, the small lead screw 216 rotates and is limited in the installation groove 213, so as to drive the second nut block 217 to move downward, the second nut block 217 drives the pipette 218 to move downward to make the sharp mouth of the pipette 218 extend into the container to take liquid, after the liquid taking is completed, the first servo motor 25 is started to drive the translation lead screw 22 to rotate, the translation lead screw 22 rotates and is limited by the limiting rod 23 to drive the first nut block 24 to move horizontally to control the pipette 218 to move above the test tube, so as to inject the solution into the test tube.

[0037] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another, without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0038] Although the embodiments of the present application have been shown and described, it is understood that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fully automatic solution quantitative dispensing device comprising a base (1), characterized in that: The top of the base (1) is provided with a liquid taking assembly (2); the top of the base (1) is also provided with an auxiliary assembly (3); the liquid taking assembly (2) comprises an assembling box (26), a rotating shaft (210) is rotatably connected between the inner walls of the assembling box (26), a first worm wheel (211) is fixedly connected to the outer wall of the rotating shaft (210), a second servo motor (27) is fixedly installed on the inner wall of the assembling box (26), a first worm (29) is fixedly connected to the output shaft of the second servo motor (27), an auxiliary block (28) is fixedly connected to the inner wall of the assembling box (26), the first worm (29) is rotatably connected to one side of the auxiliary block (28), the first worm (29) is engaged with the first worm wheel (211), one end of the rotating shaft (210) is fixedly connected with a disc block (212), an installation groove (213) is formed in the inside of the disc block (212), a small driving motor (215) is fixedly installed on the inner wall of the installation groove (213), an L-shaped plate (214) is fixedly connected to the inner wall of the installation groove (213), a small lead screw (216) is fixedly connected to the output shaft of the small driving motor (215), the small lead screw (216) is rotatably connected to one side of the L-shaped plate (214), a second nut block (217) is threadedly connected to the outer wall of the small lead screw (216), the second nut block (217) is slidably connected to the inside of the L-shaped plate (214), a pipette (218) is fixedly installed on one end of the second nut block (217).

2. The full-automatic solution quantitative dispensing device according to claim 1, characterized in that: The top of the base (1) is fixedly connected with a mounting plate (21), a translation lead screw (22) is rotatably connected between two mounting plates (21), a first nut block (24) is threadedly connected to the outer wall of the translation lead screw (22), and the bottom of the first nut block (24) is fixedly connected with the assembling box (26); a limiting rod (23) is fixedly connected between two mounting plates (21), and the limiting rod (23) penetrates through and movably connects with the first nut block (24).

3. The full-automatic solution quantitative dispensing device according to claim 2, characterized in that: A first servo motor (25) is fixedly installed on one side of the mounting plate (21), and the output shaft of the first servo motor (25) is fixedly connected with one end of the translation lead screw (22).

4. The automatic solution quantitative dispensing device according to claim 1, characterized in that: The auxiliary assembly (3) comprises a protection shell (31), a central shaft (32) is rotatably connected to the top of the base (1), the central shaft (32) penetrates through the top of the protection shell (31), a sample disc (38) is fixedly connected to one end of the central shaft (32), an insertion slot (39) is formed in the inside of the sample disc (38), and a second worm wheel (33) is fixedly connected to the outer wall of the central shaft (32).

5. The full-automatic solution quantitative dispensing device according to claim 4, characterized in that: A butt joint block (34) is fixedly connected to the inner wall of the protection shell (31), a second worm (35) is rotatably connected between two butt joint blocks (34), the second worm (35) is engaged with the second worm wheel (33), a third servo motor (36) is fixedly installed on the top of the base (1), and the output shaft of the third servo motor (36) is fixedly connected with one end of the second worm (35).

6. The automatic solution quantitative dispensing device according to claim 1, characterized in that: The top of the base (1) is fixedly connected with a placing table (37).