Electronic injector convenient to clean

Abstract

The utility model relates to the technical field of electronic injectors, in particular to an electronic injector convenient to clean, which comprises an electronic injector body, a containing groove is formed in the lower end face of the electronic injector body, and a liquid taking pipe is fixedly connected to the lower end face of the electronic injector body. An output shaft of the electronic injector body is fixedly connected with a piston block located in the containing groove, the moving plate is matched with the two connecting rods to drive the two elastic diaphragms to stretch in a reciprocating mode, and air is continuously conveyed into the dispersing cavity through the two elastic diaphragms, the two first one-way valves and the two second one-way valves. Air in the dispersion cavity is blown out through a plurality of air blowing holes, and air outlets of the air blowing holes are formed downwards, so that the air flow blown out through the air blowing holes flows downwards, the liquid medicine adsorbed on the inner wall of the liquid taking pipe is blown downwards and discharged out of the liquid taking pipe through air flow, and the interior of the liquid taking pipe is cleaned; residual moisture on the inner wall of the liquid taking pipe is prevented from influencing the experiment precision.

Description

Technical Field

[0001] This utility model relates to the field of electronic injector technology, specifically to an electronic injector that is easy to clean. Background Technology

[0002] An electronic injector is a syringe device that uses electronic technology and microprocessor control to precisely measure and control the injection process of drugs. It provides higher injection accuracy and safety by precisely controlling the flow rate, dosage and injection time of the drug solution. When using an electronic injector, if it is necessary to transfer two different types of liquids, the liquid dispensing tube of the electronic injector needs to be cleaned to avoid the mixing and deterioration of the liquids.

[0003] Existing electronic injectors typically clean the liquid collection tube by drawing and draining water. However, after cleaning, water remains on the tube wall, which can mix with the subsequently transferred drug solution, reducing the concentration of the transferred solution and affecting experimental accuracy. This is detrimental to the practical use of electronic injectors. Utility Model Content

[0004] The purpose of this invention is to provide an easy-to-clean electronic injector that can clean the liquid collection tube and prevent residual moisture on the inner wall of the liquid collection tube from affecting the accuracy of the experiment.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an easy-to-clean electronic injector, comprising an electronic injector body, a receiving groove formed on the lower end face of the electronic injector body, a liquid extraction tube fixedly connected to the lower end face of the electronic injector body, the inner wall of the liquid extraction tube being flush with the inner wall of the receiving groove, a piston block fixedly connected to the output shaft of the electronic injector body and located inside the receiving groove, the piston block being matched with the inner walls of the receiving groove and the liquid extraction tube respectively, a dispersion chamber formed inside the electronic injector body, and a plurality of evenly distributed air holes communicating with the dispersion chamber being formed through the inner wall of the receiving groove;

[0006] An installation block is fixedly connected to the lower end of the outer wall of the electronic injector body. The installation block has a cavity inside. Two elastic diaphragms are fixedly connected inside the cavity. The two elastic diaphragms divide the cavity into a first air chamber, a driving chamber, and a second air chamber. A moving plate is slidably connected inside the driving chamber. A sliding hole is opened through the upper end face of the moving plate. A connecting rod is fixedly connected between the front and rear end faces of the moving plate and the side walls opposite to the two elastic diaphragms. An air passage is connected between the first air chamber, the second air chamber, and the dispersion chamber.

[0007] The left inner walls of the first and second air chambers are both provided with air inlets, and the interior of each of the two air inlets is equipped with a first one-way valve. The right inner walls of the first and second air chambers are both embedded with second one-way valves that are respectively connected to the two air passages.

[0008] In order to drive the moving plate to move back and forth, as a preferred embodiment of the present invention for an easy-to-clean electronic injector, a rotating plate is rotatably connected to the upper end of the drive cavity, and a drive rod is fixedly connected to the lower end face of the rotating plate at an eccentric position, with the lower end of the drive rod extending into the sliding hole.

[0009] In order to drive the rotating plate to rotate, as a preferred embodiment of the present invention for an easy-to-clean electronic injector, a motor is installed inside the mounting block, and the output end of the motor is fixedly connected to the rotating plate.

[0010] In order to limit the movement of the moving plate, as a preferred embodiment of the present invention for an easy-to-clean electronic injector, the left and right sidewalls of the moving plate are slidably connected to the left and right inner sidewalls of the driving cavity by limiting sliders and limiting grooves.

[0011] To increase the user's grip comfort, as a preferred embodiment of this invention for easy cleaning, the outer wall of the injector body is designed with a wave-like structure.

[0012] In order to make the airflow flow downward, the air outlet of the blowing hole is preferably set downward as a preferred embodiment of the present invention for an easy-to-clean electronic injector.

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

[0014] When cleaning the liquid collection tube, the motor, in conjunction with the rotating plate, drives the drive rod to rotate. The drive rod, in conjunction with the sliding hole, drives the moving plate to move back and forth. The moving plate, in conjunction with the two connecting rods, drives the two elastic diaphragms to extend and reciprocate. Air is continuously supplied to the dispersion chamber through the two elastic diaphragms, the two first one-way valves, and the two second one-way valves. Then, the air in the dispersion chamber is blown out through multiple air blowing holes. Since the air outlets of the air blowing holes are set downwards, the airflow blown out through the multiple air blowing holes flows downwards, thereby blowing the liquid adsorbed on the inner wall of the liquid collection tube downwards and expelling it from the liquid collection tube through the airflow. This cleans the inside of the liquid collection tube and prevents residual moisture on the inner wall of the liquid collection tube from affecting the experimental accuracy. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a front cross-sectional view of the present invention.

[0017] Figure 3 This is a schematic diagram of the structural structure of this utility model from a bottom view.

[0018] Figure 4 This utility model Figure 2 Enlarged structural diagram of part a;

[0019] In the diagram: 1. Electro-injector body; 2. Storage slot; 3. Liquid collection tube; 4. Piston block; 5. Dispersion chamber; 6. Air blowing hole; 7. Mounting block; 8. Cavity; 9. Elastic diaphragm; 10. First air chamber; 11. Drive chamber; 12. Second air chamber; 13. Moving plate; 14. Sliding hole; 15. Connecting rod; 16. Air passage pipe; 17. Air inlet; 18. First one-way valve; 19. Second one-way valve; 20. Rotating plate; 21. Drive rod; 22. Motor. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model. In the description of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. Furthermore, in the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0021] Please see Figures 1 to 4 An easy-to-clean electronic injector includes an electronic injector body 1, a receiving groove 2 is provided on the lower end face of the electronic injector body 1, a liquid extraction tube 3 is fixedly connected to the lower end face of the electronic injector body 1, the inner wall of the liquid extraction tube 3 is flush with the inner wall of the receiving groove 2, a piston block 4 located inside the receiving groove 2 is fixedly connected to the output shaft of the electronic injector body 1, the piston block 4 is matched with the inner walls of the receiving groove 2 and the liquid extraction tube 3 respectively, a dispersion chamber 5 is provided inside the electronic injector body 1, and a plurality of evenly distributed air holes 6 connected to the dispersion chamber 5 are provided through the inner wall of the receiving groove 2.

[0022] An installation block 7 is fixedly connected to the lower end of the outer wall of the electronic injector body 1. A cavity 8 is opened inside the installation block 7. Two elastic diaphragms 9 are fixedly connected inside the cavity 8. The two elastic diaphragms 9 divide the cavity 8 into a first air chamber 10, a driving chamber 11 and a second air chamber 12, which are distributed front to back. A moving plate 13 is slidably connected inside the driving chamber 11. A sliding hole 14 is opened through the upper end face of the moving plate 13. A connecting rod 15 is fixedly connected between the front and rear end faces of the moving plate 13 and the side wall opposite to the two elastic diaphragms 9. An air passage 16 is connected between the first air chamber 10 and the second air chamber 12 and the dispersion chamber 5.

[0023] The left inner walls of the first air chamber 10 and the second air chamber 12 are both provided with air inlets 17, and the interiors of the two air inlets 17 are each equipped with a first one-way valve 18. The right inner walls of the first air chamber 10 and the second air chamber 12 are each equipped with a second one-way valve 19 that is connected to the two air passages 16 respectively.

[0024] In this embodiment: when cleaning the liquid collection tube 3, the output shaft of the electronic injector body 1 drives the piston block 4 to move into the inside of the storage groove 2, so that multiple air holes 6 are located below the piston block 4. Then the moving plate 13 moves back and forth, and the moving plate 13, together with the two connecting rods 15, drives the two elastic diaphragms 9 to extend back and forth.

[0025] When the two elastic diaphragms 9 extend backward, the rear elastic diaphragm 9 compresses the air inside the second air chamber 12 and enters the dispersion chamber 5 through the rear second one-way valve 19 and the rear air passage 16. At the same time, the front elastic diaphragm 9 draws outside air into the first air chamber 10 through the front air inlet 17 and the front first one-way valve 18. When the two elastic diaphragms 9 extend forward, they compress the air in the first air chamber 10 into the dispersion chamber 5. At the same time, the rear air inlet 17 and the rear first one-way valve 18 draw outside air into the second air chamber 12. Thus, air is continuously supplied to the dispersion chamber 5 through the two elastic diaphragms 9, the two first one-way valves 18, and the two second one-way valves 19.

[0026] Then, the air in the dispersion chamber 5 is blown out through multiple air holes 6. Since the air outlet of the air holes 6 is set downward, the airflow blown out through the multiple air holes 6 flows downward, thereby blowing the liquid adsorbed on the inner wall of the liquid collection tube 3 downward and expelling it from the liquid collection tube 3 through the airflow, thereby cleaning the inside of the liquid collection tube 3 and avoiding residual moisture on the inner wall of the liquid collection tube 3, which would affect the accuracy of the experiment.

[0027] As a technical optimization of this utility model, a rotating plate 20 is rotatably connected to the upper end of the drive cavity 11, and a drive rod 21 is fixedly connected to the eccentric part of the lower end face of the rotating plate 20. The lower end of the drive rod 21 extends into the sliding hole 14.

[0028] In this embodiment: the rotating plate 20 rotates, and the rotating plate 20 drives the driving rod 21 to rotate. Since the driving rod 21 is fixedly connected to the eccentric part of the lower end face of the rotating plate 20, the moving plate 13 is driven to move back and forth through the mutual cooperation between the driving rod 21 and the sliding hole 14.

[0029] As a technical optimization of this utility model, a motor 22 is installed inside the mounting block 7, and the output end of the motor 22 is fixedly connected to the rotating plate 20.

[0030] In this embodiment: the motor 22 is started, and the motor 22 drives the rotating plate 20 to rotate.

[0031] As a technical optimization of this utility model, the left and right sidewalls of the movable plate 13 and the left and right inner sidewalls of the drive cavity 11 are slidably connected by a limiting slider and a limiting groove.

[0032] In this embodiment, the limiting slider and the limiting groove can limit the movement of the moving plate 13 while allowing the moving plate 13 to move smoothly.

[0033] As a technical optimization of this utility model, the outer wall of the electronic injector body 1 is set as a wave structure.

[0034] In this embodiment, the outer wall of the electronic injector body 1 is designed with a wave structure, which can increase the user's grip comfort.

[0035] As a technical optimization of this utility model, the air outlet of the air blowing hole 6 is set downward.

[0036] In this embodiment, the air outlet of the air blowing hole 6 is set downward, which allows the airflow blown out through the multiple air blowing holes 6 to flow downward.

[0037] Working principle: During use, the control button on the outer wall of the electronic injector body 1 controls the output shaft of the electronic injector body 1 to move the piston block 4 to the lower end of the liquid collection tube 3, immersing the lower end of the liquid collection tube 3 in the liquid. Then, the output shaft of the electronic injector body 1 drives the piston block 4 to move upward. Through the interaction between the piston block 4 and the liquid collection tube 3, the liquid is drawn into the liquid collection tube 3. It should be noted that the piston block 4 moves upward to the upper end of the liquid collection tube 3, so that the multiple air holes 6 are located above the piston block 4, preventing the liquid from entering the multiple air holes 6. Then, the amount of liquid injected by the electronic injector body 1 is set. During injection, the lower end of the liquid collection tube 3 is inserted into the organism to be injected. Then, the output shaft of the electronic injector body 1 drives the piston block 4 to move downward a certain distance according to the set amount of liquid to be injected, thereby completing the injection operation.

[0038] When cleaning the liquid collection tube 3, the output shaft of the electronic injector body 1 drives the piston block 4 to move into the storage tank 2, so that multiple air holes 6 are located below the piston block 4. Then, the motor 22 is started, the motor 22 drives the rotating plate 20 to rotate, the rotating plate 20 drives the drive rod 21 to rotate, the drive rod 21, in conjunction with the sliding hole 14, drives the moving plate 13 to move back and forth, and the moving plate 13, in conjunction with the two connecting rods 15, drives the two elastic diaphragms 9 to extend back and forth.

[0039] When the two elastic diaphragms 9 extend backward, the rear elastic diaphragm 9 compresses the air inside the second air chamber 12 and enters the dispersion chamber 5 through the rear second one-way valve 19 and the rear air passage 16. At the same time, the front elastic diaphragm 9 draws outside air into the first air chamber 10 through the front air inlet 17 and the front first one-way valve 18. When the two elastic diaphragms 9 extend forward, they compress the air in the first air chamber 10 into the dispersion chamber 5. At the same time, the rear air inlet 17 and the rear first one-way valve 18 draw outside air into the second air chamber 12. Thus, air is continuously supplied to the dispersion chamber 5 through the two elastic diaphragms 9, the two first one-way valves 18, and the two second one-way valves 19.

[0040] Then, the air in the dispersion chamber 5 is blown out through multiple air holes 6. Since the air outlet of the air holes 6 is set downward, the airflow blown out through the multiple air holes 6 flows downward, thereby blowing the liquid adsorbed on the inner wall of the liquid collection tube 3 downward and expelling it from the liquid collection tube 3 through the airflow, thereby cleaning the inside of the liquid collection tube 3 and avoiding residual moisture on the inner wall of the liquid collection tube 3, which would affect the accuracy of the experiment.

[0041] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An easy-to-clean electro-injector, comprising an electro-injector body (1), characterized in that: The lower end face of the electronic syringe body (1) is provided with a receiving groove (2), and a liquid extraction tube (3) is fixedly connected to the lower end face of the electronic syringe body (1). The inner wall of the liquid extraction tube (3) is flush with the inner wall of the receiving groove (2). The output shaft of the electronic syringe body (1) is fixedly connected to a piston block (4) located inside the receiving groove (2). The piston block (4) is matched with the inner walls of the receiving groove (2) and the liquid extraction tube (3) respectively. The inside of the electronic syringe body (1) is provided with a dispersion chamber (5). The inner wall of the receiving groove (2) is provided with multiple evenly distributed air holes (6) that communicate with the dispersion chamber (5). The lower end of the outer wall of the electronic injector body (1) is fixedly connected to an installation block (7). The installation block (7) has a cavity (8) inside. The cavity (8) has two elastic diaphragms (9) distributed front and back. The two elastic diaphragms (9) divide the cavity (8) into a first air chamber (10), a driving chamber (11), and a second air chamber (12) distributed front and back. The driving chamber (11) has a sliding plate (13) slidably connected inside. The upper end face of the sliding plate (13) has a through hole (14). The front and rear end faces of the sliding plate (13) are fixedly connected to the side walls opposite to the two elastic diaphragms (9). The first air chamber (10) and the second air chamber (12) are connected to the dispersion chamber (5) by an air passage (16). The left inner walls of the first air chamber (10) and the second air chamber (12) are provided with air inlets (17), and the interiors of the two air inlets (17) are each equipped with a first one-way valve (18). The right inner walls of the first air chamber (10) and the second air chamber (12) are each equipped with a second one-way valve (19) that is connected to the two air pipes (16).

2. The easy-to-clean electro-injector according to claim 1, characterized in that: The upper end of the drive cavity (11) is rotatably connected to a rotating plate (20), and a drive rod (21) is fixedly connected to the lower end face of the rotating plate (20) at an eccentric position. The lower end of the drive rod (21) extends into the sliding hole (14).

3. The easy-to-clean electronic injector according to claim 2, characterized in that: The motor (22) is installed inside the mounting block (7), and the output end of the motor (22) is fixedly connected to the rotating plate (20).

4. The easy-to-clean electro-injector according to claim 1, characterized in that: The left and right sidewalls of the movable plate (13) and the left and right inner sidewalls of the drive cavity (11) are slidably connected by limiting sliders and limiting grooves.

5. The easy-to-clean electro-injector according to claim 1, characterized in that: The outer wall of the electronic injector body (1) is configured with a wave structure.

6. The easy-to-clean electro-injector according to claim 1, characterized in that: The air outlet of the air blowing hole (6) is set downward.

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