A syringe precision liquid discharge amount control device
By integrating components such as a housing, display panel, control panel, and stepper motor onto the syringe, precise control of the syringe's liquid output is achieved, solving the problem of unstable liquid output in existing syringes and improving operational accuracy and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- CHANGSHU INSTITUTE OF TECHNOLOGY
- Filing Date
- 2026-04-02
- Publication Date
- 2026-07-14
AI Technical Summary
Existing syringes have difficulty achieving long-term stability in controlling liquid output, especially in precise measurement situations where they are susceptible to human error and instability, increasing the risks of medical and laboratory procedures.
It adopts components such as mounting shell, display panel, control panel, stepper motor, threaded column, slider, baffle, etc. The stepper motor drives the threaded column to rotate, which drives the slider and baffle to perform precise linear motion, so as to achieve precise control of the liquid output of the syringe. The display panel provides real-time data feedback, and the control panel provides convenient operation.
It achieves high-precision adjustment of syringe liquid output, avoiding errors and instability caused by human operation, improving work efficiency and safety, and is suitable for medical and laboratory scenarios that require high-precision liquid control.
Smart Images
Figure CN122376923A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of syringe technology, and more specifically, to a device for precisely controlling the liquid output of a syringe. Background Technology
[0002] Syringes are used very frequently in medical procedures and laboratory research, but existing syringes have certain shortcomings in controlling the amount of liquid output.
[0003] In current technology, syringes often cannot achieve stable dispensing control over a long period of time by relying on human operation, which can lead to inaccurate experimental results or increased risks in medical procedures. This deficiency is particularly evident in situations requiring precise measurement. In addition, human operation is also susceptible to factors such as fatigue and hand tremors, which further reduce the stability of the dispensing volume. Summary of the Invention
[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a syringe precise liquid dispensing control device. The technical problem to be solved by the present invention is that in the current technology, it is often difficult to achieve stable liquid dispensing control for a long time by relying on manual operation during the use of syringes. In some treatment processes that require precise drug dosage, even a small deviation in the liquid dispensing volume of the syringe can have a serious impact on the patient's health, further increasing the difficulty of operation and the risk of error.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a syringe precision liquid dispensing control device, comprising a mounting shell, wherein a control module and a battery are fixedly installed inside the mounting shell, a display panel is fixedly installed on the front side of the mounting shell, a control panel is fixedly installed on the right side of the front side of the mounting shell, and a power socket is provided on the outer wall of the mounting shell. A stepper motor is fixedly installed inside the mounting housing, and a threaded post is fixedly connected to the output end of the stepper motor.
[0006] As a further embodiment of the present invention: a slider is threadedly connected to the outer wall of the threaded column, a baffle is fixedly connected to the outer wall of the slider, and a syringe top slot is provided on the front side of the baffle.
[0007] As a further embodiment of the present invention: a circular movable hole extending to the bottom is provided on both the left and right sides of the rear top of the baffle. A fixed column is movably connected to the inner wall of the circular movable hole provided in the baffle. The top of the two fixed columns is fixedly connected to the bottom of the mounting shell. A mounting platform is fixedly connected to the bottom of the two fixed columns. The top of the mounting platform is rotatably connected to the bottom of the threaded column.
[0008] As a further embodiment of the present invention: a U-shaped placement groove is provided on the front side of the mounting platform, and a threaded groove and a guide groove are provided on the right side of the front side of the mounting platform. A threaded rod is threadedly connected to the inner wall of the threaded groove of the mounting platform, and a plum blossom knob is fixedly connected to the front end of the threaded rod.
[0009] As a further embodiment of the present invention: the outer wall of the threaded rod is threadedly connected to a syringe pressure plate, and the right side of the syringe pressure plate is fixedly connected to a guide plate, the outer wall of the guide plate being movably connected to the inner wall of the guide groove opened on the mounting platform.
[0010] As a further embodiment of the present invention: a protective shell is fixedly connected to the side of the mounting platform and the mounting shell that are close to each other. The inner wall of the protective shell is movably connected to the outer wall of the baffle. Storage slots are provided on both the left and right sides of the protective shell. A fixing plate is hinged to the top of the inner wall of the storage slot of the protective shell. A circular insertion hole is provided on the outer wall of the fixing plate.
[0011] The beneficial effects of this invention are as follows: 1. This invention, by incorporating a mounting shell, display panel, control panel, stepper motor, threaded column, slider, baffle, syringe top slot, fixing column, mounting platform, U-shaped placement groove, threaded rod, plum blossom knob, syringe pressure plate, and guide plate, enables precise control of the syringe's liquid output. This effectively avoids errors and instability caused by human operation. The stepper motor drives the threaded column to rotate, causing the slider and baffle to move precisely in a linear motion, thus achieving stable syringe pushing. The display panel provides real-time feedback of the liquid output data, while the control panel offers convenient operation, allowing users to set parameters according to their needs. Furthermore, the syringe top slot and syringe pressure plate ensure the syringe's stability during use, preventing control deviations caused by loosening or displacement. The overall structure is easy to operate and suitable for medical and laboratory settings requiring high-precision liquid control, significantly improving work efficiency and safety. Attached Figure Description
[0012] Fig. 1 This is a schematic diagram of the structure of the present invention; Fig. 2 This is a schematic diagram of the structure of the present invention; Fig. 3 This is a schematic diagram of the control panel of the present invention.
[0013] In the diagram: 1. Mounting housing; 2. Display panel; 3. Control panel; 4. Stepper motor; 5. Threaded post; 6. Slider; 7. Baffle; 8. Syringe top slot; 9. Fixing post; 10. Mounting platform; 11. U-shaped placement slot; 12. Threaded rod; 13. Plum blossom knob; 14. Syringe pressing plate; 15. Guide plate; 16. Protective housing; 17. Fixing plate; 18. Circular socket; 19. Power socket. Detailed Implementation
[0014] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0015] like Figs. 1-3As shown, this invention provides a syringe precise dispensing volume control device, including a mounting shell 1. A control module and a battery are fixedly installed inside the mounting shell 1. A display panel 2 is fixedly installed on the front side of the mounting shell 1, and a control panel 3 is fixedly installed on the front right side of the mounting shell 1. A power socket 19, which can be a Type-C power socket, is located on the outer wall of the mounting shell 1. The control panel 3 has four buttons: "Up," "Down," "+," and "-." A short press of the "Up" or "Down" button selects the direction, while a long press activates manual mode. The "+" and "-" buttons are for speed adjustment. A stepper motor 4 is fixedly installed inside the mounting shell 1. The control module, battery, display panel 2, control panel 3, and stepper motor 4 are electrically connected. The output end of the stepper motor 4 is fixed... A threaded post 5 is fixedly connected, and a slider 6 is threadedly connected to the outer wall of the threaded post 5. A baffle 7 is fixedly connected to the outer wall of the slider 6. A syringe tip slot 8 is opened on the front side of the baffle 7. Circular movable holes extending to the bottom are opened on the left and right sides of the rear top of the baffle 7. Fixed posts 9 are movably connected to the inner wall of the circular movable holes of the baffle 7. The tops of the two fixed posts 9 are fixedly connected to the bottom of the mounting shell 1. A mounting platform 10 is fixedly connected to the bottom of the two fixed posts 9. The top of the mounting platform 10 is rotatably connected to the bottom of the threaded post 5. A U-shaped placement groove 11 is opened on the front side of the mounting platform 10. First, the syringe is placed in the U-shaped placement groove 11, so that its tip is inserted into the syringe tip slot 8, ensuring that it is stable and does not shake. A U-shaped placement groove 11 is opened on the front right side of the mounting platform 10. The mounting platform 10 has threaded grooves and guide grooves. A threaded rod 12 is threadedly connected to the inner wall of the threaded groove. A perforated knob 13 is fixedly connected to the front end of the threaded rod 12. A syringe pressure plate 14 is threadedly connected to the outer wall of the threaded rod 12. A guide plate 15 is fixedly connected to the right side of the syringe pressure plate 14. The outer wall of the guide plate 15 is movably connected to the inner wall of the guide groove on the mounting platform 10. A protective shell 16 is fixedly connected to the side of the mounting platform 10 that is close to the mounting shell 1. The inner wall of the protective shell 16 is movably connected to the outer wall of the baffle 7. Storage slots are provided on both the left and right sides of the protective shell 16. A fixing plate 17 is hinged to the top of the inner wall of the storage slot on the protective shell 16. A circular insertion hole 18 with a diameter of 10mm-20mm is provided on the outer wall of the fixing plate 17. Next, by rotating the plum blossom knob 13, the threaded rod 12 moves the syringe plunger 14 until it presses against the syringe plunger. During this process, the guide plate 15 slides along the guide groove of the mounting platform 10 to ensure that the movement of the syringe plunger 14 is smooth and precise. After fixing, the user can input the target liquid volume through the control panel 3 and select the direction and speed by pressing "Up, Down, +, -". After receiving the command, the control module drives the stepper motor 4 to run. The output end of the stepper motor 4 drives the threaded column 5 to rotate, thereby causing the slider 6 to move linearly along the threaded column 5. The movement of the slider 6 further pushes the baffle 7. The baffle 7 is kept stable by the limiting action of the fixed column 9, ultimately achieving precise control of the syringe plunger. Throughout the process...The display panel 2 provides real-time feedback on the current status and liquid output data, facilitating operator monitoring and enabling high-precision adjustment of the syringe's liquid output. This meets the needs of various scenarios. Furthermore, the protective shell 16 protects the internal structure. In practical applications, users can flip the fixing plate 17 and insert the circular insertion hole 18 into the iron frame column to secure the main unit, making it suitable for flexible use in laboratories, hospitals, and other settings. The power socket 19 allows connection to an external power source, ensuring stable operation over extended periods. The presence of a battery also contributes to the device's portability, enabling normal operation even without an external power source.
[0016] Working principle of this invention: First, place the syringe in the U-shaped placement groove 11, ensuring its tip is engaged in the syringe tip slot 8, guaranteeing it is stable and does not wobble. Next, rotate the swivel knob 13 to move the threaded rod 12, which in turn moves the syringe plunger 14 until it presses against the syringe plunger. During this process, the guide plate 15 slides along the guide groove of the mounting platform 10, ensuring smooth and precise movement of the syringe plunger 14. After securing, the user can input the target output volume via the control panel 3 and select the direction and speed by pressing "Up, Down, +, -". Upon receiving the command, the control module drives the stepper motor 4. The output of the stepper motor 4 rotates the threaded column 5, causing the slider 6 to move linearly along the threaded column 5. The movement of the slider 6 further pushes the baffle 7, which is then secured. The limiting function of column 9 maintains stability, ultimately achieving precise control of the syringe plunger. Throughout the process, the display panel 2 provides real-time feedback on the current status and liquid output data, facilitating operator monitoring and enabling high-precision adjustment of the syringe output, meeting the needs of different scenarios. In addition, the protective shell 16 protects the internal structure. In practical applications, users can flip the fixing plate 17 and insert the circular insertion hole 18 into the iron frame column to fix the main unit, making it suitable for flexible use in various settings such as laboratories and hospitals. The power socket 19 allows connection to an external power source to power the device, ensuring stable operation over long periods. The presence of the battery also provides portability, enabling normal operation even without an external power source.
[0017] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection" and "linkage" should be interpreted broadly, and can be mechanical or electrical connection, or internal connection between two components, or direct connection. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationship. When the absolute position of the described object changes, the relative positional relationship may change. Secondly: The accompanying drawings of the embodiments disclosed in this invention only involve the structures involved in the embodiments disclosed in this invention. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this invention can be combined with each other. The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.
Claims
1. A syringe precision dispensing volume control device, comprising a mounting housing (1), characterized in that: The control module and the battery are fixedly installed inside the mounting shell (1). A display panel (2) is fixedly installed on the front side of the mounting shell (1). A control panel (3) is fixedly installed on the right side of the front side of the mounting shell (1). A power socket (19) is located on the outer wall of the mounting shell (1). A stepper motor (4) is fixedly installed inside the mounting housing (1), and a threaded column (5) is fixedly connected to the output end of the stepper motor (4).
2. The syringe precise liquid dispensing volume control device according to claim 1, characterized in that: The outer wall of the threaded column (5) is threadedly connected to a slider (6), and the outer wall of the slider (6) is fixedly connected to a baffle (7). The front side of the baffle (7) is provided with a syringe top slot (8).
3. The syringe precise liquid dispensing volume control device according to claim 2, characterized in that: The baffle (7) has circular movable holes extending to the bottom on both the left and right sides of the top rear side. The inner wall of the circular movable holes of the baffle (7) is movably connected to a fixed column (9). The top of the two fixed columns (9) is fixedly connected to the bottom of the mounting shell (1). The bottom of the two fixed columns (9) is fixedly connected to a mounting platform (10). The top of the mounting platform (10) is rotatably connected to the bottom of the threaded column (5).
4. The syringe precise liquid dispensing volume control device according to claim 3, characterized in that: The mounting platform (10) has a U-shaped placement groove (11) on its front side, and a threaded groove and a guide groove on the right side of the front side of the mounting platform (10). The inner wall of the threaded groove of the mounting platform (10) is threaded with a threaded rod (12), and the front end of the threaded rod (12) is fixedly connected with a plum blossom knob (13).
5. The syringe precise liquid dispensing volume control device according to claim 4, characterized in that: The outer wall of the threaded rod (12) is threadedly connected to a syringe pressure plate (14), and a guide plate (15) is fixedly connected to the right side of the syringe pressure plate (14). The outer wall of the guide plate (15) is movably connected to the inner wall of the guide groove opened on the mounting platform (10).
6. The syringe precise liquid dispensing volume control device according to claim 3, characterized in that: The mounting platform (10) and the mounting shell (1) are fixedly connected to a protective shell (16) on the side close to each other. The inner wall of the protective shell (16) is movably connected to the outer wall of the baffle (7). Storage slots are provided on both the left and right sides of the protective shell (16). A fixing plate (17) is hinged to the top of the inner wall of the storage slot of the protective shell (16). A circular insertion hole (18) is provided on the outer wall of the fixing plate (17).