A rapid semi-quantitative liquid addition device for chemical analysis

Abstract

This utility model discloses a rapid semi-quantitative liquid addition device for chemical analysis, relating to the field of chemical analysis auxiliary equipment technology. It includes a storage tank with a top cover. A liquid replenishment component is installed on the top of the top cover. A connecting pipe is connected to the bottom of the side wall of the storage tank, and one end of the connecting pipe is connected to a transparent cylinder. A servo motor is installed at the top of the transparent cylinder, and the output end of the servo motor extends into the interior of the transparent cylinder and is connected to a screw. A piston is screwed onto the screw. A connecting rod is fixed to the inner wall of the top of the transparent cylinder, and the piston is slidably sleeved on the connecting rod. A controller is installed at the top of the top cover. In this utility model, rapid semi-quantitative liquid addition is achieved through the cooperation of the servo motor, screw, and piston, improving efficiency; the controller provides precise control, reducing human error and ensuring consistent liquid addition; a liquid level sensor and a liquid replenishment component enable automatic liquid replenishment; the transparent cylinder has graduations for easy observation, making it suitable for large-scale chemical testing.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary equipment technology for chemical analysis, and in particular to a rapid semi-quantitative liquid addition device for chemical analysis. Background Technology

[0002] Currently, traditional semi-quantitative dispensing devices for chemical analysis have many problems. Common semi-quantitative dispensing tools such as acid gourds require manual control, resulting in slow dispensing speeds. In large-scale chemical testing, staff face a large number of samples, and manual dispensing is extremely inefficient, severely slowing down the overall testing progress. Furthermore, manual operation is susceptible to factors such as operator fatigue, mood, and experience, making it difficult to ensure consistent dispensing volumes and leading to significant dispensing errors. This can affect the accuracy of experimental results to varying degrees. Therefore, a rapid semi-quantitative dispensing device for chemical analysis is proposed. Utility Model Content

[0003] To address the shortcomings of existing technologies, this invention provides a rapid semi-quantitative liquid addition device for chemical analysis. Through the cooperation of a servo motor, screw, and piston, it achieves rapid semi-quantitative liquid addition, improving efficiency. The controller provides precise control, reducing human error and ensuring consistent liquid addition. Equipped with a liquid level sensor and a replenishment component, it can automatically replenish liquid. The transparent cylinder with graduations facilitates observation and is suitable for large-scale chemical testing, overcoming the deficiencies of existing technologies.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A rapid semi-quantitative liquid addition device for chemical analysis includes a storage tank with a top cover. A liquid replenishment component is installed on the top of the top cover. A connecting pipe is connected to the bottom of the side wall of the storage tank. One end of the connecting pipe is connected to a transparent cylinder. A servo motor is installed at the top of the transparent cylinder. The output end of the servo motor extends into the interior of the transparent cylinder and is connected to a screw. A piston is screwed onto the screw. A connecting rod is fixed to the inner wall of the top of the transparent cylinder. The piston is slidably sleeved on the connecting rod. A controller is installed at the top of the top cover. A liquid addition valve is installed at the bottom of the transparent cylinder.

[0006] As a further improvement of this utility model, a first solenoid valve is installed on the connecting pipe.

[0007] As a further improvement of this utility model, the transparent cylinder is made of glass or plastic.

[0008] As a further embodiment of this utility model: the liquid replenishment assembly includes a liquid pump fixed to the top of the top cover, the liquid pump has a liquid pumping end connected to a liquid pumping pipe, a second solenoid valve is installed at one end of the liquid pumping pipe, the liquid pump has an outlet pipe connected to the outlet end, one end of the outlet pipe is connected to the top cover, and one end of the second solenoid valve is externally connected to a liquid delivery pipeline.

[0009] As a further improvement of this utility model: a liquid level sensor is installed on the inner wall of the top cover, and both the liquid pump and the liquid level sensor are electrically connected to the controller.

[0010] As a further improvement of this utility model, scale lines are provided on the outer wall of the transparent cylinder.

[0011] As a further improvement of this utility model: two connecting rods are provided, and the connecting rods are symmetrically distributed inside the transparent cylinder.

[0012] The beneficial effects of this utility model are as follows:

[0013] The system utilizes a servo motor, screw, and piston to achieve rapid semi-quantitative liquid addition, improving efficiency. The controller provides precise control, reducing human error and ensuring consistent liquid addition. Equipped with a liquid level sensor and replenishment components, it can automatically replenish liquid. The transparent cylinder with graduations facilitates observation and is suitable for large-scale chemical testing. Attached Figure Description

[0014] Figure 1 This is a first-view three-dimensional structural diagram of a rapid semi-quantitative liquid addition device for chemical analysis proposed in this utility model.

[0015] Figure 2 This is a partial cross-sectional structural diagram of a rapid semi-quantitative liquid addition device for chemical analysis proposed in this utility model.

[0016] Figure 3 This is a second-view three-dimensional structural diagram of a rapid semi-quantitative liquid addition device for chemical analysis proposed in this utility model.

[0017] Figure 4 This invention proposes a rapid semi-quantitative liquid addition device for chemical analysis. Figure 1 Enlarged structural diagram at point A in the middle.

[0018] In the diagram: 1. Storage tank; 2. Discharge pipe; 3. Second solenoid valve; 4. Suction pipe; 5. Suction pump; 6. Top cover; 7. Controller; 8. Servo motor; 9. Transparent cylinder; 10. Filling valve; 11. Connecting pipe; 12. First solenoid valve; 13. Liquid level sensor; 14. Screw; 15. Connecting rod; 16. Piston; 17. Scale line. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] Example 1, referring to Figure 1-4 A rapid semi-quantitative liquid addition device for chemical analysis includes a storage tank 1, a top cover 6 at the top of the storage tank 1, a liquid replenishment component installed at the top of the top cover 6, a connecting pipe 11 connected to the bottom of the side wall of the storage tank 1, a transparent cylinder 9 connected to one end of the connecting pipe 11, a servo motor 8 installed at the top of the transparent cylinder 9, the output end of the servo motor 8 extending into the interior of the transparent cylinder 9 and connected to a screw 14, a piston 16 screwed onto the screw 14, a connecting rod 15 fixed to the inner wall of the top of the transparent cylinder 9, the piston 16 slidably sleeved on the connecting rod 15, two connecting rods 15 provided, and the connecting rods 15 symmetrically distributed inside the transparent cylinder 9, a controller 7 installed at the top of the top cover 6, a liquid addition valve 10 installed at the bottom of the transparent cylinder 9, the transparent cylinder 9 being made of glass or plastic, a first solenoid valve 12 installed on the connecting pipe 11, and graduation lines 17 provided on the outer wall of the transparent cylinder 9.

[0021] The required sampling volume is input into the controller 7. The servo motor 8 operates according to the feedback information from the controller 7, driving the screw 14 to rotate. The screw 14 drives the piston 16 to move upward inside the transparent cylinder 9. At the same time, the controller 7 controls the first solenoid valve 12 to open, thereby drawing the liquid in the connecting pipe 11 into the transparent cylinder 9. When the set sampling volume is reached, the servo motor 8 stops operating, the first solenoid valve 12 closes, and then the controller 7 controls the liquid filling valve 10 to open, so that the liquid is discharged from the liquid filling valve 10 to the analysis equipment for analysis.

[0022] Example 2 is an optimization based on Example 1, specifically:

[0023] The liquid replenishment assembly includes a liquid pump 5 fixed to the top of the top cover 6. The liquid pump 5 is connected to a liquid pumping pipe 4 at the liquid pumping end. A second solenoid valve 3 is installed at one end of the liquid pumping pipe 4. The liquid pump 5 is connected to an outlet pipe 2 at the outlet end. One end of the outlet pipe 2 is connected to the top cover 6. One end of the second solenoid valve 3 is externally connected to a liquid delivery pipeline.

[0024] A liquid level sensor 13 is installed on the inner wall of the top cover 6. Both the liquid pump 5 and the liquid level sensor 13 are electrically connected to the controller 7.

[0025] The liquid level sensor 13 detects the liquid level in the storage tank 1 and transmits the liquid level information to the controller 7. When the liquid level is low, the controller 7 controls the pump 5 and the second solenoid valve 3 to open, and uses the pump 5 to add liquid to the storage tank 1. When the liquid level is high, the controller 7 controls the pump 5 and the second solenoid valve 3 to close.

[0026] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A rapid semi-quantitative liquid addition device for chemical analysis, comprising a storage tank (1), characterized in that, The top of the storage tank (1) is provided with a top cover (6), and a liquid replenishment component is installed on the top of the top cover (6). A connecting pipe (11) is connected to the bottom of the side wall of the storage tank (1). One end of the connecting pipe (11) is connected to a transparent cylinder (9). A servo motor (8) is installed on the top of the transparent cylinder (9). The output end of the servo motor (8) extends into the interior of the transparent cylinder (9) and is connected to a screw (14). A piston (16) is screwed onto the screw (14). A connecting rod (15) is fixed on the inner wall of the top of the transparent cylinder (9). The piston (16) is slidably sleeved on the connecting rod (15). A controller (7) is installed on the top of the top cover (6). A liquid filling valve (10) is installed on the bottom of the transparent cylinder (9).

2. The rapid semi-quantitative liquid addition device for chemical analysis according to claim 1, characterized in that, A first solenoid valve (12) is installed on the connecting pipe (11).

3. The rapid semi-quantitative liquid addition device for chemical analysis according to claim 1, characterized in that, The transparent cylinder (9) is made of glass or plastic.

4. The rapid semi-quantitative liquid addition device for chemical analysis according to claim 1, characterized in that, The replenishment assembly includes a pump (5) fixed on the top of the top cover (6). The pump (5) has a pump pipe (4) connected to its pumping end. A second solenoid valve (3) is installed at one end of the pump pipe (4). The pump (5) has an outlet pipe (2) connected to its outlet end. One end of the outlet pipe (2) is connected to the top cover (6). One end of the second solenoid valve (3) is connected to a liquid delivery pipeline.

5. The rapid semi-quantitative liquid addition device for chemical analysis according to claim 4, characterized in that, A liquid level sensor (13) is installed on the inner wall of the top cover (6), and both the pump (5) and the liquid level sensor (13) are electrically connected to the controller (7).

6. The rapid semi-quantitative liquid addition device for chemical analysis according to claim 1, characterized in that, The outer wall of the transparent cylinder (9) is provided with scale lines (17).

7. The rapid semi-quantitative liquid addition device for chemical analysis according to claim 1, characterized in that, Two connecting rods (15) are provided, and the connecting rods (15) are symmetrically distributed inside the transparent cylinder (9).

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