Quantitative toluene solution taking and separating device

Abstract

The utility model discloses a toluene solution quantitative taking and separating device, in particular to the technical field of anesthetic sampling, which comprises a sampling needle cylinder, a needle head is mounted at the bottom end of the sampling needle cylinder, a micro servo motor is mounted at the root of the outer wall of the sampling needle cylinder, and a threaded rod is mounted at the power output end of the micro servo motor. Scale marks are arranged on the outer wall of the sampling needle cylinder, bosses are symmetrically and integrally formed at the top end of the outer wall of the sampling needle cylinder, and a connecting rod is installed on the inner side of the sampling needle cylinder. The toluene sampling device has the beneficial effects that the threaded rod is driven by the micro servo motor to rotate anticlockwise, so that the threaded rod is matched with the inner threaded sleeve to enable the connecting rod to pull the rubber piston to move upwards, a toluene solution is sucked into the inner side of the sampling needle cylinder under the action of air pressure, and meanwhile, the sampling needle cylinder is adjusted to be horizontal by utilizing the water level; the sampling is more accurate by matching with the scale marks, and the toluene solution can be accurately and quantitatively extracted.

Description

Technical Field

[0001] The utility model relates to a toluene solution quantitative fractionation device, in particular to a toluene solution quantitative fractionation device, belonging to the technical field of anesthetic sampling. Background Art

[0002] Anesthetic pharmacology is a branch of pharmacology, which mainly explains the laws and mechanisms of interaction between commonly used drugs and the body during anesthesia practice. Anesthetic pharmacology is closely related to clinical anesthesia practice. The main teaching purpose is to provide the necessary basic theories for learning clinical disciplines, guide rational use of drugs, formulate medication plans, and lay the foundation for engaging in clinical anesthesia. Anesthetic pharmacology, based on the professional characteristics of anesthesia disciplines, highlights the application of drugs in clinical anesthesia, focusing on general anesthetics, local anesthetics, muscle relaxants, controlled antihypertensive drugs, and blood volume expanders, etc. It is an important basic course in the anesthesia professional course. At the same time, anesthetic pharmacology is also a medical bridge course. It is not only a link between pharmacy and medicine, but also a bridge between basic medicine and clinical medicine. A thorough understanding and mastering of the content of the anesthetic pharmacology course will help anesthesia students to use drugs scientifically, reasonably and effectively in future clinical work. Sampling is required in anesthetic pharmacology experiments.

[0003] Although the existing sampling equipment for anesthetic pharmacology experiments has achieved basic operating performance, the following problems still exist: 1. The supporting structure of the existing sampling equipment for anesthetic pharmacology experiments is relatively simple, and the equipment cannot be fixed during sampling, which reduces the stability of the sampling equipment during use; 2. At the same time, the existing sampling equipment for anesthetic pharmacology experiments does not have an adjustment function, and the staff cannot adjust and control the sampling height of the equipment according to actual conditions, which reduces the practicality of the sampling equipment. The existing patent for a sampling equipment for anesthetic pharmacology experiments, the patent authorization number is CN 213941048 U, is provided with a sliding rod and a fixed plate, and the height of the equipment during anesthetic pharmacology sampling can be adjusted, which is convenient for the staff to adjust and control the equipment according to the actual sampling situation, and improves the practicality of the sampling equipment. A threaded rod is provided to cooperate with an adjustment seat, which is convenient for the equipment to sample at a uniform speed, improves the practicality of the sampling equipment, makes the sampling equipment more convenient to use, and expands the scope of application.

[0004] However, in the patent authorization number CN 213941048 U, the solution is extracted by manual extraction during the sampling process. Due to the uneven force applied during the manual extraction process, it is impossible to accurately and quantitatively extract the solution. Therefore, we propose a toluene solution quantitative extraction device. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and provides a toluene solution quantitative fractionation device.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] Design a toluene solution quantitative sampling device, including a sampling syringe;

[0008] A needle is installed at the bottom end of the sampling syringe;

[0009] A micro servo motor is installed at the root of the outer wall of the sampling syringe, and a threaded rod is installed at the power output end of the micro servo motor;

[0010] The outer wall of the sampling syringe is provided with scale lines;

[0011] The top of the outer wall of the sampling syringe is symmetrically and integrally formed with a boss;

[0012] A connecting rod is installed on the inner side of the sampling syringe, and the bottom end of the connecting rod is connected to a rubber piston abutting against the inner wall of the sampling syringe. A connecting handle is integrally formed on the top end of the connecting rod, a level is installed on the upper surface of the connecting handle, and an internal threaded sleeve that passes through the boss and is threadedly connected to the threaded rod is installed on the lower surface of the connecting handle.

[0013] Preferably, a sub-filling bottle is provided below the sampling syringe, and the needle extends to the inner side of the sub-filling bottle.

[0014] Preferably, a bottle cap is installed on the top of the sub-packaging bottle, and the top of the bottle cap is arranged in an open structure.

[0015] Preferably, a self-sealing rubber head is installed on the inner side of the bottle cap, and the needle penetrates the self-sealing rubber head.

[0016] Preferably, a connecting plate is integrally formed at the bottom end of the connecting rod, and the connecting plate is covered on the inner side of the rubber piston.

[0017] Preferably, a through hole is provided at the junction of the boss and the internally threaded sleeve, and the inner diameter of the through hole is matched with the outer diameter of the internally threaded sleeve.

[0018] Preferably, the sampling syringe is made of transparent PVC material.

[0019] The utility model provides a toluene solution quantitative fractionation device, which has the following beneficial effects:

[0020] 1. The threaded rod is driven counterclockwise by a micro servo motor, so that the connecting rod pulls the rubber piston upward in cooperation with the internal threaded sleeve. The toluene solution is sucked into the inner side of the sampling syringe under the action of air pressure. At the same time, the sampling syringe is adjusted to a horizontal level using a level. The sampling is more accurate in cooperation with the scale line, so that the toluene solution can be accurately and quantitatively extracted.

[0021] 2. After sampling the toluene solution through the sampling syringe, pierce the needle through the self-sealing rubber head and penetrate into the inner side of the sampling syringe. Rotate clockwise through the micro servo motor, use the rubber piston to push the toluene solution into the sub-filling bottle, then pull out the needle, and fill the piercing point through the self-sealing rubber head to achieve quantitative filling of the toluene solution. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of a toluene solution quantitative fractionation device proposed by the utility model;

[0023] Figure 2 A schematic side view of a sampling syringe of a toluene solution quantitative fractionation device proposed by the utility model;

[0024] Figure 3 This is a schematic cross-sectional view of the sampling syringe AA portion of a toluene solution quantitative fractionation device proposed by the utility model;

[0025] Figure 4 This is a schematic front view of a dispensing bottle of a toluene solution quantitative dispensing device proposed by the utility model;

[0026] Figure 5 The utility model provides a schematic cross-sectional view of the dispensing bottle BB portion of a toluene solution quantitative dispensing device.

[0027] In the figure: 1. sampling syringe; 2. needle; 3. micro servo motor; 4. threaded rod; 5. scale line; 6. boss; 7. connecting rod; 8. rubber piston; 9. connecting plate; 10. connecting handle; 11. level; 12. internal threaded sleeve; 13. dispensing bottle; 14. bottle cap; 15. self-sealing rubber head. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0029] Reference Figure 1-5 , a toluene solution quantitative sampling device, comprising a sampling syringe 1;

[0030] A needle 2 is installed at the bottom end of the sampling syringe 1;

[0031] A micro servo motor 3 is installed at the root of the outer wall of the sampling syringe 1, and a threaded rod 4 is installed at the power output end of the micro servo motor 3;

[0032] The outer wall of the sampling syringe 1 is provided with scale lines 5;

[0033] A boss 6 is symmetrically formed on the top of the outer wall of the sampling syringe 1;

[0034] A connecting rod 7 is installed on the inner side of the sampling syringe 1, and a rubber piston 8 is connected to the bottom end of the connecting rod 7 and abuts against the inner wall of the sampling syringe 1. A connecting handle 10 is integrally formed on the top of the connecting rod 7. A level 11 is installed on the upper surface of the connecting handle 10, and an internal threaded sleeve 12 that penetrates the boss 6 and is screwed to the threaded rod 4 is installed on the lower surface of the connecting handle 10;

[0035] It should be noted that when the toluene solution quantitative sampling device for anesthesiology is in use, the sampling syringe 1 is inserted into a container containing toluene solution, which is used as the raw material of the anesthetic, and the needle 2 is immersed in the toluene solution. The initial position of the rubber piston 8 is located at the bottom wall of the inner cavity of the sampling syringe 1. The micro-servo motor 3 is connected to an external control device, and the control device is used to set a set of appropriate forward and reverse programs for the micro-servo motor 3. The threaded rod 4 is driven by the micro-servo motor 3 to rotate counterclockwise, so that the connecting rod 7 pulls the rubber piston 8 upward in cooperation with the internal threaded sleeve 12, and the toluene solution is sucked into the inner side of the sampling syringe 1 under the action of air pressure. At the same time, the sampling syringe 1 is adjusted to a horizontal level using the level 11, and the sampling is more accurate in cooperation with the scale line 5, so that the toluene solution can be accurately and quantitatively extracted.

[0036] like Figure 1 , Figure 5 As shown, a sub-filling bottle 13 is arranged below the sampling syringe 1, and the needle 2 extends to the inner side of the sub-filling bottle 13, a bottle cap 14 is installed on the top of the sub-filling bottle 13, and the top of the bottle cap 14 is arranged in an open structure, a self-sealing rubber head 15 is installed on the inner side of the bottle cap 14, and the needle 2 passes through the self-sealing rubber head 15;

[0037] It should be noted that after sampling the toluene solution through the sampling syringe 1, the needle 2 pierces the self-sealing rubber head 15 and penetrates into the inner side of the sampling syringe 1, and the micro servo motor 3 rotates clockwise, and the rubber piston 8 is used to push the toluene solution into the filling bottle 13, and then the needle 2 is pulled out, and the self-sealing rubber head 15 fills the pierced part by itself to realize the quantitative filling of the toluene solution.

[0038] like Figure 3 As shown, a connecting plate 9 is integrally formed at the bottom end of the connecting rod 7, and the connecting plate 9 is covered on the inner side of the rubber piston 8;

[0039] It should be noted that the stability of the connection between the connecting rod 7 and the rubber piston 8 is ensured.

[0040] like Figure 1 As shown, a through hole is provided at the junction of the boss 6 and the internal thread sleeve 12, and the inner diameter of the through hole is adapted to the outer diameter of the internal thread sleeve 12;

[0041] It should be noted that the stabilizing effect of the internal threaded sleeve 12 in the process of driving the connecting rod 7 to slide is ensured.

[0042] like Figure 1 As shown, the sampling syringe 1 is made of transparent PVC;

[0043] It should be noted that the scale line 5 is used to facilitate observation of the amount of toluene solution sucked into the inner side of the sampling syringe 1 .

[0044] Working principle: When in use, the sampling syringe 1 is inserted into a container containing a toluene solution, which is used as a raw material for anesthetics, so that the needle 2 is immersed in the toluene solution, and the initial position of the rubber piston 8 is located at the bottom wall of the inner cavity of the sampling syringe 1. The micro servo motor 3 is connected to an external control device, and a set of appropriate forward and reverse programs are set for the micro servo motor 3 by the control device. The micro servo motor 3 drives the threaded rod 4 to rotate counterclockwise, thereby cooperating with the internal threaded sleeve 12 to make the connecting rod 7 pull the rubber piston 8 upward, and the toluene solution is pushed into the sample under the action of air pressure. The liquid is sucked into the inner side of the sampling syringe 1, and the sampling syringe 1 is adjusted to a horizontal level using the level 11, and the sampling is made more accurate with the scale line 5, so that the toluene solution can be accurately and quantitatively extracted. After sampling the toluene solution through the sampling syringe 1, the needle 2 pierces the self-sealing rubber head 15 and penetrates into the inner side of the sampling syringe 1, and the micro servo motor 3 rotates clockwise, and the rubber piston 8 is used to push the toluene solution into the filling bottle 13, and then the needle 2 is pulled out, and the piercing position is filled by the self-sealing rubber head 15 to realize the quantitative filling of the toluene solution.

[0045] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A toluene solution quantitative fractionation device, characterized in that: It includes a sampling syringe (1); A needle (2) is installed at the bottom end of the sampling syringe (1); A micro servo motor (3) is installed at the root of the outer wall of the sampling syringe (1), and a threaded rod (4) is installed at the power output end of the micro servo motor (3); The outer wall of the sampling syringe (1) is provided with scale lines (5); A boss (6) is symmetrically and integrally formed on the top of the outer wall of the sampling syringe (1); A connecting rod (7) is installed on the inner side of the sampling syringe (1), and the bottom end of the connecting rod (7) is connected to a rubber piston (8) that abuts against the inner wall of the sampling syringe (1). A connecting handle (10) is integrally formed at the top end of the connecting rod (7), and a level (11) is installed on the upper surface of the connecting handle (10). An internal threaded sleeve (12) that passes through the boss (6) and is threadedly connected to the threaded rod (4) is installed on the lower surface of the connecting handle (10).

2. A toluene solution quantitative fractionation device according to claim 1, characterized in that: A sub-filling bottle (13) is arranged below the sampling syringe (1), and the needle (2) extends to the inner side of the sub-filling bottle (13).

3. A toluene solution quantitative fractionation device according to claim 2, characterized in that: A bottle cap (14) is installed on the top of the sub-packaging bottle (13), and the top of the bottle cap (14) is in an open structure.

4. A toluene solution quantitative fractionation device according to claim 3, characterized in that: A self-sealing rubber head (15) is installed on the inner side of the bottle cap (14), and the needle (2) passes through the self-sealing rubber head (15).

5. A toluene solution quantitative fractionation device according to claim 1, characterized in that: A connecting plate (9) is integrally formed at the bottom end of the connecting rod (7), and the connecting plate (9) is wrapped around the inner side of the rubber piston (8).

6. A toluene solution quantitative fractionation device according to claim 1, characterized in that: A through hole is provided at the junction of the boss (6) and the internally threaded sleeve (12), and the inner diameter of the through hole is matched to the outer diameter of the internally threaded sleeve (12).

7. A toluene solution quantitative fractionation device according to claim 1, characterized in that: The sampling syringe (1) is made of transparent PVC material.

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