Liquid adding and diluting device for medical examination

By designing an automated liquid addition and dilution device, which combines a metering tube and a rotating block, the problems of inaccurate dilution and liquid leakage caused by manual dilution are solved, thus achieving automation and accuracy in the dilution process.

CN223774676UActive Publication Date: 2026-01-09KUNSHAN TRADITIONAL CHINESE MEDICINE HOSPITAL
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Patent Information

Application Number
CN202520217502.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-12
Publication Date
2026-01-09
Estimated Expiration
2035-02-12

AI Technical Summary

Technical Problem

Existing medical testing equipment requires manual adjustment of the liquid addition during the dilution process, which leads to inaccurate dilution ratios and the possibility of liquid leakage into the addition tube, affecting test results.

Method used

A liquid dilution device was designed, comprising a metering tube, a graduated groove, a filling port, a cylinder, a lifting rod, and a lower pressure plate. The cylinder drives the lower pressure plate to add the diluent solution quantitatively into the treatment tank, and the drive motor drives the rotating block and the stirring block to mix the liquid, thus avoiding liquid leakage and adhesion.

Benefits of technology

The automated dilution process ensures accurate dilution ratios, prevents liquid leakage, and improves the accuracy of test results.

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Abstract

The utility model relates to the technical field of medical examination, and discloses a liquid adding and diluting device for medical examination, which comprises a mounting rack, a processing barrel, a liquid inlet pipe, a liquid outlet pipe, a liquid adding component and a driving motor, the processing barrel is fixedly connected to the top of the mounting rack, the liquid inlet pipe is arranged at the top of one end of the processing barrel, and the liquid outlet pipe is arranged at the top of the other end of the processing barrel; the liquid outlet pipe is arranged at the bottom of one side of the treatment barrel, the liquid adding assembly is mounted at the top of the treatment barrel, the driving motor is fixedly connected to the bottom of the mounting frame, and the liquid adding assembly comprises a metering pipe, a scale groove, a filling port, an air cylinder, a lifting rod, a lower pressing plate and a liquid discharging port. According to the liquid adding and diluting device for medical examination, a diluted solution is metered through the filling port, then the cylinder drives the pressing plate to press downwards, the metered solution is added into the treatment barrel, dilution and uniform mixing are facilitated, and the situation that the solution is left in the barrel body, and the dilution ratio of the solution is affected is avoided.
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Description

Technical Field

[0001] This utility model relates to the field of medical testing technology, specifically to a liquid addition and dilution device for medical testing. Background Technology

[0002] In the routine testing procedures, physiological index determination, and biochemical testing in the field of medical testing, we often encounter situations where the original concentration of the sample solution is too high or too low, making it impossible to directly match the optimal detection range of the testing instrument or the specific requirements of the testing method. Therefore, it is necessary to precisely dilute the sample solution to adjust its concentration to an appropriate level.

[0003] According to the authorization announcement number CN214513847U, a liquid addition and dilution device for medical laboratory departments is disclosed, including a base and a dilution tank. A second motor is fixedly installed on the right side of the outer surface of the base, and a rotating shaft is fixedly installed at the output end of the second motor. The left side of the rotating shaft is movably connected to the left side of the inner cavity of the base through a bearing. Cams are fixedly installed at both ends of the rotating shaft surface. A roller is movably connected to the bottom of the dilution tank through a movable pin, and the bottom of the roller is placed on the top of the cam. The above-mentioned utility model achieves the purpose of rapid stirring, mixing and diluting of sample solutions through the cooperation of the electrical box, the third motor, the stirring rod, the dilution tank, the first motor, the U-shaped fixing rod, the support rod, the connecting rod, the movable sleeve, the fixed bracket, the second motor, the rotating shaft, the base, the cam and the roller. The mixing and dilution effect is excellent, meeting the needs of medical personnel.

[0004] However, the above-mentioned device still has shortcomings. While it can achieve rapid mixing and dilution by stirring the internal liquid, it requires manual adjustment before adding the liquid, which increases the dilution step. Also, some of the added liquid may be lost in the adding tube, affecting the dilution ratio and potentially leading to inaccurate testing. Utility Model Content

[0005] The purpose of this invention is to provide a liquid addition and dilution device for medical testing, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a liquid addition and dilution device for medical testing, comprising a mounting frame, a processing tank, an inlet pipe, an outlet pipe, a liquid addition assembly, and a drive motor. The processing tank is fixedly connected to the top of the mounting frame, the inlet pipe is located at the top of one end of the processing tank, the outlet pipe is located at the bottom of one side of the processing tank, the liquid addition assembly is installed on the top of the processing tank, and the drive motor is fixedly connected to the bottom of the mounting frame.

[0007] The liquid addition assembly includes a metering tube, a graduated groove, a filling port, a cylinder, a lifting rod, a lower pressure plate, and a drain port. The metering tube is fixedly connected to the top of the treatment tank. The graduated groove is located on one side of the metering tube. The filling port is located above one side of the metering tube. The cylinder is fixedly connected to the top of the metering tube. The lifting rod is pneumatically lifted and lowered, connected to the bottom of the cylinder and located inside the metering tube. The lower pressure plate is fixedly connected to the bottom of the lifting rod. The drain port is located at the bottom of the metering tube. The diluted solution is added through the filling port, and then the cylinder drives the lower pressure plate to press down, adding the measured solution into the treatment tank. This facilitates dilution and mixing, preventing liquid from remaining in the tank and affecting the solution dilution ratio.

[0008] Preferably, the treatment tank includes a tank body, a rotating block, a connecting rod, a cleaning rod, and a stirring block. The tank body is fixedly connected to the top of the treatment tank, the rotating block is rotatably connected to the bottom of the tank body, the connecting rod is fixedly connected to one end of the rotating block, and the cleaning rod is fixedly connected to the other end of the connecting rod. The outer side of the cleaning rod is in contact with the inner wall of the tank body. The stirring block is fixedly connected to the top of the rotating block. The rotating block drives the stirring block to rotate, thus mixing the added solution with the original solution. At the same time, the rotating block drives the cleaning rod to rotate, preventing the solution from adhering to the inner wall of the tank body.

[0009] Preferably, the outer side of the lower pressure plate is in contact with the inner wall of the metering tube to ensure that the solution in the metering tube is completely drained.

[0010] Preferably, the output shaft of the drive motor passes through the barrel and is fixedly connected to the bottom of the rotating block, so that the drive motor drives the rotating block to rotate.

[0011] Preferably, the number of cleaning rods is three sets, and the height of the cleaning rods is consistent with the height of the inner wall of the barrel, to ensure the cleaning effect of the cleaning rods on the inner wall of the barrel.

[0012] Preferably, the height of the graduated groove is the same as the height of the measuring tube, which facilitates the measurement of the solution added to the measuring tube through the graduated groove.

[0013] Preferably, a rubber ring is provided on the inner side of the filling port to increase the sealing effect of the filling port. At the same time, the rubber ring ensures a close fit with the injection tube, ensuring that the solution injection will not be leaked.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This liquid addition and dilution device for medical testing adds a metered amount of diluent solution through the filling port. Then, a cylinder drives a lower pressure plate to press down, adding the metered solution into the processing tank. This facilitates dilution and mixing, and prevents liquid from remaining in the tank, which could affect the solution dilution ratio.

[0016] 2. This liquid addition and dilution device for medical testing uses a rotating block to drive a stirring block to mix the added solution with the original solution. At the same time, the rotating block drives a cleaning rod to rotate, preventing the solution from adhering to the inner wall of the container. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the liquid addition assembly of this utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of the metering tube of this utility model;

[0020] Figure 4 This is a schematic diagram of the internal structure of the processing tank of this utility model.

[0021] In the diagram: 1. Mounting frame; 2. Processing tank; 3. Inlet pipe; 4. Outlet pipe; 5. Liquid addition assembly; 6. Drive motor; 201. Tank body; 202. Rotating block; 203. Connecting rod; 204. Cleaning rod; 205. Stirring block; 501. Metering tube; 502. Graduation groove; 503. Filling port; 504. Cylinder; 505. Lifting rod; 506. Lower pressure plate; 507. Drain port. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1-4 This utility model provides a technical solution: a liquid addition and dilution device for medical testing, including a mounting frame 1, a processing tank 2, an inlet pipe 3, an outlet pipe 4, a liquid addition component 5, and a drive motor 6. The processing tank 2 is fixedly connected to the top of the mounting frame 1, the inlet pipe 3 is located at the top of one end of the processing tank 2, the outlet pipe 4 is located at the bottom of one side of the processing tank 2, the liquid addition component 5 is installed on the top of the processing tank 2, and the drive motor 6 is fixedly connected to the bottom of the mounting frame 1.

[0024] The liquid addition assembly 5 includes a metering tube 501, a graduated groove 502, a filling port 503, a cylinder 504, a lifting rod 505, a lower pressure plate 506, and a drain port 507. The metering tube 501 is fixedly connected to the top of the treatment tank 2. The graduated groove 502 is located on one side of the metering tube 501. The filling port 503 is located above one side of the metering tube 501. The cylinder 504 is fixedly connected to the top of the metering tube 501. The lifting rod 505 is pneumatically lifted and lowered, connected to the bottom of the cylinder 504, and located inside the metering tube 501. The lower pressure plate 506 is fixedly connected to the bottom of the lifting rod 505. The drain port 507 is located at the bottom of the metering tube 501. The diluted solution is added through the filling port 503, and then the cylinder 504 drives the lower pressure plate 506 to press down, adding the metered solution into the treatment tank 2. To facilitate dilution and mixing and prevent liquid residue from remaining in the tank 201, which could affect the solution dilution ratio, the outer side of the lower pressure plate 506 is in close contact with the inner wall of the metering tube 501, ensuring clean drainage of the solution in the metering tube 501. The height of the scale groove 502 is consistent with the height of the metering tube 501, facilitating the measurement of the solution added to the metering tube 501 through the scale groove 502. A rubber ring is provided on the inner side of the filling port 503 to increase the sealing effect of the filling port 503. At the same time, the rubber ring ensures a close fit with the injection tube, ensuring that the solution injection will not be leaked. A control valve is provided at the bottom of the drain port 507. The bottom of the control valve is connected to the top of the treatment tank 2. The flow of solution in the liquid addition component 5 is controlled by the control valve. The control valve adopts existing valve body technology, and the connection with the treatment tank 2 is sealed.

[0025] The processing tank 2 includes a tank body 201, a rotating block 202, a connecting rod 203, a cleaning rod 204, and a stirring block 205. The tank body 201 is fixedly connected to the top of the processing tank 2. The rotating block 202 is rotatably connected to the bottom inside the tank body 201. The connecting rod 203 is fixedly connected to one end of the rotating block 202. The cleaning rod 204 is fixedly connected to the other end of the connecting rod 203, with the outer side of the cleaning rod 204 fitting against the inner wall of the tank body 201. The stirring block 205 is fixedly connected to the top of the rotating block 202. The output shaft of the drive motor 6... The bottom of the barrel 201 is fixedly connected to the rotating block 202. The rotating block 202 is driven by the drive motor 6 to rotate, which in turn drives the stirring block 205 to rotate, mixing the added solution with the original solution. At the same time, the rotating block 202 drives the cleaning rod 204 to rotate, preventing the solution from adhering to the inner wall of the barrel 201. There are three sets of cleaning rods 204, and the height of the cleaning rods 204 is consistent with the height of the inner wall of the barrel 201, ensuring the cleaning effect of the cleaning rods 204 on the inner wall of the barrel 201.

[0026] When in use, a fixed amount of ordinary liquid is first added into the processing tank 2 through the inlet pipe 3 via the metering tube 501. Then, a high-concentration liquid is added into the metering tube 501 through the filling port 503. Then, depending on the required dilution and mixing, the cylinder 504 drives the lower plate 506 to press down, adding a fixed amount of high-concentration solution into the processing tank 2. Then, the drive motor 6 drives the rotating block 202 to rotate, mixing the solution to obtain a diluted solution.

[0027] 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. A liquid addition and dilution device for medical testing, comprising a mounting frame (1), a processing tank (2), an inlet pipe (3), an outlet pipe (4), a liquid addition assembly (5), and a drive motor (6), characterized in that: The processing tank (2) is fixedly connected to the top of the mounting frame (1), the liquid inlet pipe (3) is located at the top of one end of the processing tank (2), the liquid outlet pipe (4) is located at the bottom of one side of the processing tank (2), the liquid addition assembly (5) is installed on the top of the processing tank (2), and the drive motor (6) is fixedly connected to the bottom of the mounting frame (1). The liquid addition assembly (5) includes a metering tube (501), a scale groove (502), a filling port (503), a cylinder (504), a lifting rod (505), a lower pressure plate (506), and a drain port (507). The metering tube (501) is fixedly connected to the top of the processing tank (2). The scale groove (502) is opened on one side of the metering tube (501). The filling port (503) is located above one side of the metering tube (501). The cylinder (504) is fixedly connected to the top of the metering tube (501). The lifting rod (505) is pneumatically lifted and connected to the bottom of the cylinder (504) and located inside the metering tube (501). The lower pressure plate (506) is fixedly connected to the bottom of the lifting rod (505). The drain port (507) is opened at the bottom of the metering tube (501).

2. The liquid addition and dilution device for medical testing according to claim 1, characterized in that: The processing tank (2) includes a tank body (201), a rotating block (202), a connecting rod (203), a cleaning rod (204), and a stirring block (205). The tank body (201) is fixedly connected to the top of the processing tank (2). The rotating block (202) is rotatably connected to the bottom inside the tank body (201). The connecting rod (203) is fixedly connected to one end of the rotating block (202). The cleaning rod (204) is fixedly connected to the other end of the connecting rod (203). The outer side of the cleaning rod (204) is in contact with the inner wall of the tank body (201). The stirring block (205) is fixedly connected to the top of the rotating block (202).

3. The liquid addition and dilution device for medical testing according to claim 1, characterized in that: The outer side of the lower pressure plate (506) is attached to the inner wall of the metering tube (501).

4. The liquid addition and dilution device for medical testing according to claim 1, characterized in that: The output shaft of the drive motor (6) passes through the barrel (201) and is fixedly connected to the bottom of the rotating block (202).

5. A liquid addition and dilution device for medical testing according to claim 2, characterized in that: The number of cleaning rods (204) is three sets, and the height of the cleaning rods (204) is the same as the height of the inner wall of the barrel (201).

6. The liquid addition and dilution device for medical testing according to claim 1, characterized in that: The height of the scale groove (502) is the same as the height of the measuring tube (501).

7. A liquid addition and dilution device for medical testing according to claim 1, characterized in that: A rubber ring is provided on the inner side of the filling port (503) to increase the sealing effect of the filling port (503), while the rubber ring ensures the fit with the injection tube.