Medicine sample liquid phase detection and extraction device

Abstract

The utility model relates to the technical field of medicine detection, in particular to a medicine sample liquid phase detection and extraction device which comprises a liquid extraction needle cylinder, a pushing mechanism is arranged on the outer wall of the liquid extraction needle cylinder, and a touch controller is installed on the outer wall of the liquid extraction needle cylinder and below the pushing mechanism. The outer wall of a piston rod of the liquid taking needle cylinder is fixedly connected with a connecting plate; the pushing mechanism comprises a fixed sleeve fixedly connected to the outer wall of the liquid taking needle cylinder, a driving shaft is rotationally connected to the position, on the front face of the liquid taking needle cylinder, in the fixed sleeve, and driving gears are fixedly connected to the two sides of the center of the outer wall of the driving shaft. The pushing mechanism in the device is used for pushing the piston plate of the liquid taking needle cylinder to move, so that the problems that the needle cylinder is generally used as extraction equipment at present, a user needs to manually extract a sample from the needle cylinder, the volume of the extracted sample cannot be accurately mastered, and the use is relatively inconvenient are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of drug detection, in particular to a drug sample liquid phase detection and extraction device. Background Art

[0002] The drug sample liquid phase extraction device is a device used to extract liquid drug samples to be tested, but the existing drug sample liquid phase extraction device still has shortcomings, specifically: a syringe is generally used as an extraction device, and the syringe requires the user to manually extract the sample. The volume of the extracted sample cannot be accurately controlled, and it is inconvenient to use.

[0003] Therefore, a drug sample liquid phase detection and extraction device is needed to solve the problems raised in the above background technology. Utility Model Content

[0004] The purpose of the utility model is to provide a liquid phase detection and extraction device for drug samples to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A drug sample liquid phase detection and extraction device comprises a liquid collection syringe, the outer wall of which is provided with a pushing mechanism, a touch controller is installed on the outer wall of the liquid collection syringe and below the pushing mechanism, and a connecting plate is fixedly connected to the outer wall of the piston rod of the liquid collection syringe;

[0007] The pushing mechanism includes a fixed sleeve fixedly connected to the outer wall of the liquid extraction syringe, a driving shaft is rotatably connected inside the fixed sleeve and on the front side of the liquid extraction syringe, driving gears are fixedly connected on both sides of the center of the outer wall of the driving shaft, a pushing rack is meshedly connected to the outer wall of the driving gear and on the back side of the driving shaft, a pushing rod is fixedly connected to the outer wall of the pushing rack and near the pushing rack, a displacement sensor is fixedly connected inside the pushing rod, a worm wheel is fixedly connected at the center of the outer wall of the driving shaft, a worm is meshedly connected to the outer wall of the worm wheel and on the front side of the driving shaft, a servo motor is fixedly connected to the bottom of the worm, and a battery is installed inside the fixed sleeve and near the driving gear.

[0008] As a preferred solution of the utility model, the connecting plate is made of ABS plastic, and the shape of the connecting plate is designed in an annular structure.

[0009] As a preferred solution of the utility model, the fixed sleeve and the push rod are both made of ABS plastic, and the connection mode between the worm and the fixed sleeve is a fixed connection.

[0010] As a preferred solution of the utility model, the push rod penetrates and extends outside the fixed sleeve, the push rod and the displacement sensor are provided in two groups, and the connection between the servo motor and the fixed sleeve and the push rod and the connecting plate are fixed connections.

[0011] As a preferred solution of the utility model, the outer wall of the fixed sleeve is sprayed with anti-slip paint, and the connection method of the displacement sensor, the battery and the servo motor with the touch controller is electrical connection.

[0012] As a preferred solution of the utility model, the fixed sleeve is designed as a convex-shaped structure, and the connection mode between the push rod and the fixed sleeve is a sliding connection.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. In the utility model, a liquid phase detection and extraction device for drug samples is designed, and a pushing mechanism in the device is used to push the piston plate of the liquid collection syringe to move, and the needle of the liquid collection syringe is inserted into the liquid phase sample, and the volume of the extracted sample is input into the touch controller. The touch controller calculates the moving distance of the piston rod of the liquid collection syringe according to the input volume data and the inner diameter of the liquid collection syringe, and the touch controller starts the servo motor, and the servo motor drives the worm gear to rotate through the worm, and the rotating worm gear drives the driving gear to rotate through the driving shaft, and the rotating driving gear drives the push rod to move upward by pushing the rack. The push rod moves upward, and the piston rod of the liquid collection syringe is driven to rise through the connecting plate. The rising piston rod can draw the liquid sample into the liquid collection syringe. The displacement sensor in the push rod detects the displacement distance of the push rod. When the displacement distance of the push rod matches the movement distance calculated by the touch controller, the touch controller turns off the servo motor, and the push rod no longer moves. The volume of the extracted sample can be controlled more accurately, which solves the problem that the syringe is generally used as an extraction device, the syringe requires the user to manually extract the sample, the volume of the extracted sample cannot be accurately grasped, and it is inconvenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 It is a top cross-sectional view of the utility model;

[0017] Figure 3 It is a side sectional view of the utility model.

[0018] In the figure: 1. Liquid collection syringe; 2. Pushing mechanism; 3. Touch controller; 4. Connecting plate; 201. Fixed sleeve; 202. Driving shaft; 203. Driving gear; 204. Pushing rack; 205. Pushing rod; 206. Displacement sensor; 207. Worm gear; 208. Worm; 209. Servo motor; 210. Battery. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0020] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings, and several embodiments of the present invention are given. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0021] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may also be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in this article includes any and all combinations of one or more related listed items.

[0023] For examples, see Figure 1-3 , the utility model provides a technical solution:

[0024] A drug sample liquid phase detection and extraction device comprises a liquid collection syringe 1, the outer wall of the liquid collection syringe 1 is provided with a pushing mechanism 2, a touch controller 3 is installed on the outer wall of the liquid collection syringe 1 and below the pushing mechanism 2, and a connecting plate 4 is fixedly connected to the outer wall of the piston rod of the liquid collection syringe 1;

[0025] The connecting plate 4 is made of ABS plastic, and the shape of the connecting plate 4 is designed in a ring structure;

[0026] In this embodiment, reference Figure 2 and Figure 3 The pushing mechanism 2 includes a fixed sleeve 201 fixedly connected to the outer wall of the liquid collection syringe 1, a driving shaft 202 is rotatably connected inside the fixed sleeve 201 and on the front side of the liquid collection syringe 1, a driving gear 203 is fixedly connected on both sides of the center of the outer wall of the driving shaft 202, a pushing rack 204 is meshedly connected to the outer wall of the driving gear 203 and on the back side of the driving shaft 202, a pushing rod 205 is fixedly connected to the outer wall of the pushing rack 204 and at a position close to the pushing rack 204, a displacement sensor 206 is fixedly connected inside the pushing rod 205, a worm gear 207 is fixedly connected at the center of the outer wall of the driving shaft 202, a worm 208 is meshedly connected to the outer wall of the worm gear 207 and at the front side of the driving shaft 202, a servo motor 209 is fixedly connected to the bottom of the worm 208, and a battery 210 is installed inside the fixed sleeve 201 and at a position close to the driving gear 203;

[0027] The fixed sleeve 201 and the push rod 205 are both made of ABS plastic, the worm 208 is fixedly connected to the fixed sleeve 201, the push rod 205 penetrates and extends to the outside of the fixed sleeve 201, the push rod 205 and the displacement sensor 206 are both provided with two groups, the servo motor 209 and the fixed sleeve 201 are fixedly connected, and the push rod 205 and the connecting plate 4 are all fixedly connected. The outer wall of the fixed sleeve 201 is sprayed with anti-slip paint, the displacement sensor 206, the battery 210 and the servo motor 209 are electrically connected to the touch controller 3, the fixed sleeve 201 is a convex structure design, the push rod 205 and the fixed sleeve 201 are connected by sliding connection, the needle of the liquid sampling syringe 1 is inserted into the liquid sample, the extracted sample volume is input into the touch controller 3, and the touch controller 3 is connected. The moving distance of the piston rod of the liquid collection syringe 1 is calculated according to the input volume data and the inner diameter of the liquid collection syringe 1, and the touch controller 3 starts the servo motor 209. The servo motor 209 drives the worm wheel 207 to rotate through the worm 208. The rotating worm wheel 207 drives the driving gear 203 to rotate through the driving shaft 202. The rotating driving gear 203 drives the push rod 205 to move upward by pushing the rack 204. The upward moving push rod 205 drives the piston rod of the liquid collection syringe 1 to rise through the connecting plate 4. The rising piston rod can draw the liquid sample into the liquid collection syringe 1. The displacement sensor 206 in the push rod 205 will detect the displacement distance of the push rod 205. When the displacement distance of the push rod 205 matches the moving distance calculated by the touch controller 3, the touch controller 3 turns off the servo motor 209, and the push rod 205 no longer moves.

[0028] The working process of the utility model is as follows: when the liquid phase detection and extraction device for drug samples designed by the present invention is in operation, the needle of the liquid collection syringe 1 is inserted into the liquid sample, and the volume of the sample to be extracted is input into the touch controller 3. The touch controller 3 calculates the moving distance of the piston rod of the liquid collection syringe 1 according to the input volume data and the inner diameter of the liquid collection syringe 1, and the touch controller 3 starts the servo motor 209. The servo motor 209 drives the worm gear 207 to rotate through the worm 208. The rotating worm gear 207 drives the driving gear 203 to rotate through the driving shaft 202. The rotating driving gear 203 drives the pushing rod 205 to move upward by pushing the rack 204. The pushing rod 205 that moves upward drives the piston rod of the liquid collection syringe 1 to rise through the connecting plate 4. The rising piston rod can draw the liquid sample into the liquid collection syringe 1, and the displacement sensor 206 in the pushing rod 205 The displacement distance of the push rod 205 will be detected. When the displacement distance of the push rod 205 matches the movement distance calculated by the touch controller 3, the touch controller 3 turns off the servo motor 209, the push rod 205 no longer moves, the liquid collection syringe 1 is drawn out of the liquid sample, and then the liquid collection syringe 1 is aligned with the sample test tube. The touch controller 3 starts the servo motor 209, and the servo motor 209 drives the worm gear 207 to rotate in the opposite direction through the worm 208. The reversely rotating worm gear 207 drives the driving gear 203 to rotate in the opposite direction through the driving shaft 202. The reversely rotating driving gear 203 drives the push rod 205 to move downward by pushing the rack 204. The downwardly moving push rod 205 drives the piston rod of the liquid collection syringe 1 to descend through the connecting plate 4. The descending piston rod can push the liquid sample out of the liquid collection syringe 1, and the pushed liquid sample flows into the sample test tube.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A drug sample liquid phase detection and extraction device, comprising a liquid collection syringe (1), characterized in that: The outer wall of the liquid collection syringe (1) is provided with a pushing mechanism (2), a touch controller (3) is installed on the outer wall of the liquid collection syringe (1) and below the pushing mechanism (2), and a connecting plate (4) is fixedly connected to the outer wall of the piston rod of the liquid collection syringe (1); The pushing mechanism (2) comprises a fixed sleeve (201) fixedly connected to the outer wall of the liquid collection syringe (1); a driving shaft (202) is rotatably connected inside the fixed sleeve (201) and on the front side of the liquid collection syringe (1); driving gears (203) are fixedly connected to both sides of the center of the outer wall of the driving shaft (202); a pushing rack (204) is meshingly connected to the outer wall of the driving gear (203) and on the back side of the driving shaft (202); and a pushing rack (204) is meshingly connected to the outer wall of the driving rack (204) and at a position close to the pushing rack (204). A push rod (205) is fixedly connected at the position, a displacement sensor (206) is fixedly connected inside the push rod (205), a worm wheel (207) is fixedly connected at the center of the outer wall of the drive shaft (202), a worm (208) is meshingly connected to the outer wall of the worm wheel (207) and at the front of the drive shaft (202), a servo motor (209) is fixedly connected to the bottom of the worm (208), and a storage battery (210) is installed inside the fixed sleeve (201) and near the driving gear (203).

2. A drug sample liquid phase detection and extraction device according to claim 1, characterized in that: The connecting plate (4) is made of ABS plastic, and the shape of the connecting plate (4) is designed in a ring structure.

3. A drug sample liquid phase detection and extraction device according to claim 1, characterized in that: The fixed sleeve (201) and the push rod (205) are both made of ABS plastic, and the connection mode between the worm (208) and the fixed sleeve (201) is a fixed connection.

4. A drug sample liquid phase detection and extraction device according to claim 1, characterized in that: The push rod (205) penetrates and extends outside the fixed sleeve (201), two groups of the push rod (205) and the displacement sensor (206) are provided, and the connection between the servo motor (209) and the fixed sleeve (201) and the push rod (205) and the connecting plate (4) are all fixed connections.

5. A drug sample liquid phase detection and extraction device according to claim 1, characterized in that: The outer wall of the fixed sleeve (201) is sprayed with anti-slip paint, and the displacement sensor (206), the storage battery (210) and the servo motor (209) are all electrically connected to the touch controller (3).

6. A drug sample liquid phase detection and extraction device according to claim 1, characterized in that: The fixed sleeve (201) is designed as a convex-shaped structure, and the connection mode between the push rod (205) and the fixed sleeve (201) is a sliding connection.

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