Integrated injection pump

Abstract

The utility model discloses an integrated injection pump which comprises a controller, an operation display screen convenient to operate is arranged on the front side of the controller, and the controller is a programmable logic controller (PLC). The left end and the right end of the controller are provided with an end support and an injector installation frame respectively, and a driving mechanism for driving an injector piston rod to move is installed between the injector installation frame and the end support. The driving mechanism is further provided with a first clamping mechanism for clamping and adjusting a pressing plate at the outer end of an injector piston rod, and a second clamping mechanism for clamping and adjusting a lug plate at the end of an injector barrel is installed on the side, opposite to the first clamping mechanism, of the injector installation frame. Top clamping mechanisms matched with the V-shaped grooves to clamp the injectors are further installed at the tops of the vertical plates on the two sides of the injector installation frame. The infusion support is simple in structure, convenient to operate and suitable for infusion of injectors of different specifications and sizes, the application range is widened, and meanwhile the stability of the infusion speed is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of injection pumps, and particularly relates to an integrated injection pump applicable to various syringe specifications. Background Art

[0002] An injection pump is a medical device composed of a stepper motor, its driver, a lead screw, and a bracket, etc. During operation, the single-chip microcomputer system issues control pulses to make the stepper motor rotate, and the stepper motor drives the lead screw to convert the rotational motion into a linear motion, pushing the piston of the syringe for injection infusion to achieve high-precision and smooth pulsation-free liquid transmission.

[0003] However, currently, the existing injection pumps generally use an integrated slider with a pressure plate limit hole to push the piston rod of the syringe to complete constant-speed infusion. This integrally formed slider cannot adjust the size of the limit hole, is only applicable to syringe pressure plates of a single size, and cannot adapt to syringes of different specifications, increasing the production cost of the injection pump. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide an integrated injection pump, which can solve the problem that the slider and the pressure plate limit hole in the current injection pump are integrally formed and cannot be adjusted, and improve the applicable range of the injection pump.

[0005] To solve the above technical problems, the technical solutions adopted by the utility model are as follows.

[0006] The integrated injection pump includes a controller, and an operation display screen for easy operation is arranged on the front side of the controller. The controller adopts a PLC controller; end supports and syringe mounting brackets are respectively installed at the left and right ends of the controller. A driving mechanism for driving the piston rod of the syringe to move is installed between the syringe mounting bracket and the end support; a first clamping mechanism for clamping and adjusting the pressure plate at the outer end of the piston rod of the syringe is also installed on the driving mechanism, and a second clamping mechanism for clamping and adjusting the ear plate at the end of the syringe barrel is installed on one side of the syringe mounting bracket opposite to the first clamping mechanism; a V-shaped groove for fitting with the syringe barrel is formed on the syringe mounting bracket, and top clamping mechanisms for clamping the syringe in cooperation with the V-shaped groove are also installed at the tops of the vertical plates on both sides of the syringe mounting bracket.

[0007] For the above integrated injection pump, the driving mechanism includes a lead screw installed on the central axis between the syringe mounting bracket and the end support and a slider threadedly fitted with the lead screw; the lead screw is driven by a rotating motor installed inside the end support, and the controlled end of the rotating motor is connected to the output end of the controller.

[0008] In the above integrated syringe pump, guide rods for balance guiding are symmetrically arranged on the front and rear sides of the lead screw, and the guide rods are also installed between the end support and the syringe mounting bracket.

[0009] In the above integrated syringe pump, the first clamping mechanism includes a first clamping plate slidably mounted on the slider. The first clamping plate is L-shaped, and a clamping opening for the pressure plate is formed between the vertical part of the first clamping plate and the side wall of the slider.

[0010] In the above integrated syringe pump, threaded rods are symmetrically arranged on the top of the slider. Notches matching the size of the threaded rods are formed at both ends of the horizontal part of the first clamping plate, and the first clamping plate is mounted on the threaded rods through locking nuts.

[0011] In the above integrated syringe pump, the second clamping mechanism includes an L-shaped second clamping plate slidably mounted on the syringe mounting bracket. An ear plate clamping opening for clamping the ear plate is formed between the vertical part of the second clamping plate and the side wall of the syringe mounting bracket.

[0012] In the above integrated syringe pump, the second clamping plate is tightly connected to the threaded rod at the top of the syringe mounting bracket through a locking nut, and a notch for slidably fitting with the threaded rod is also formed on the horizontal part of the second clamping plate.

[0013] In the above integrated syringe pump, positioning pins for positioning the end support and the syringe mounting bracket are respectively arranged at both ends of the top of the controller.

[0014] Due to the adoption of the above technical solutions, the technical progress achieved by the present utility model is as follows.

[0015] The present utility model provides an integrated syringe pump, which has a simple structure and is convenient to operate. By setting the first clamping mechanism and the second clamping mechanism, the clamping range of the clamping mechanism can be adjusted, which is suitable for syringes of different specifications and sizes for infusion, improves the applicable range, reduces the production cost of the instrument, and at the same time, the stable rotation of the lead screw driven by the controller drives the slider to move, ensuring the stability of the infusion speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a specific structural schematic diagram of the present utility model when a syringe is installed;

[0017] Figure 2 is a specific structural schematic diagram of the present utility model.

[0018] Wherein: 1. Controller, 2. Operation display screen, 3. End support, 4. Lead screw, 5. Guide rod, 6. Slider, 7. First clamping plate, 8. Locking nut, 9. Pressure plate, 10. Cylinder body, 11. Ear plate, 12. Syringe mounting bracket, 13. Second clamping plate, 14. Limit top plate, 15. Adjusting bolt, 16. V-shaped groove. Detailed implementation mode

[0019] The present utility model will be further described in detail below in conjunction with the drawings and specific implementation modes.

[0020] An integrated syringe pump, such as Figures 1 to 2 shown, includes a controller 1. An operation display screen 2 for easy operation is arranged on the front side of the controller 1. The controller 1 adopts a PLC controller. End supports 3 and a syringe mounting bracket 12 are respectively installed at the left and right ends of the controller 1.

[0021] Positioning pins are respectively arranged at both ends of the top of the controller 1, which can position the end supports 3 and the syringe mounting bracket 12 to ensure stability during the operation process.

[0022] A driving mechanism for driving the movement of the syringe piston rod is installed between the syringe mounting bracket 12 and the end support 3. The driving mechanism includes a lead screw 4 installed on the central axis between the syringe mounting bracket 12 and the end support 3 and a slider 6 threadedly fitted with the lead screw 4.

[0023] The lead screw 4 is driven by a rotary motor installed inside the end support 3. The controlled end of the rotary motor is connected to the output end of the controller 1.

[0024] Guide rods 5 are symmetrically arranged on the front and rear sides of the lead screw 4 respectively. The guide rods 5 are also installed between the end support 3 and the syringe mounting bracket 12, playing a role of balanced guiding.

[0025] A first clamping mechanism for clamping the outer end of the syringe piston rod's pressing plate 9 is also installed on the driving mechanism. The first clamping mechanism can adjust the clamping width to clamp the pressing plates 9 of different specifications of syringes.

[0026] The first clamping mechanism includes a first clamping plate 7 slidably installed on the slider 6. The first clamping plate 7 is arranged in an L shape. A pressing plate clamping opening for clamping the pressing plate 9 is formed between the vertical part of the first clamping plate 7 and the side wall of the slider 6.

[0027] Threaded rods are symmetrically arranged at the top of the slider 6. Notches matching the dimensions of the threaded rods are opened at both ends of the horizontal part of the first clamping plate 7. The first clamping plate 7 is installed on the threaded rods through locking nuts, and the adjustment of the pressing plate clamping opening is realized by moving the first clamping plate 7 along the length direction of the notches.

[0028] A V-shaped groove 16 for fitting with the syringe barrel 10 is opened on the syringe mounting bracket 12. Top clamping mechanisms for clamping the syringe in cooperation with the V-shaped groove 16 are also installed at the tops of the vertical plates on both sides of the syringe mounting bracket 12.

[0029] The top clamping mechanism includes a limit top plate 14, and both ends of the limit top plate 14 are threadedly fitted with the vertical plates on both sides of the syringe mounting bracket 10 through adjusting bolts 15.

[0030] On one side of the syringe mounting bracket 12 opposite to the first clamping mechanism, a second clamping mechanism for clamping the ear plate 11 at the end of the syringe barrel 10 is installed.

[0031] The second clamping mechanism includes an L-shaped second clamping plate 13 slidably mounted on the syringe mounting bracket 12. An ear plate clamping opening is formed between the vertical portion of the second clamping plate 13 and the side wall of the syringe mounting bracket 12. The second clamping plate 13 and the threaded rod at the top of the syringe mounting bracket 12 are tightly connected through a locking nut 8.

[0032] A notch for slidably fitting with the threaded rod is also formed on the horizontal portion of the second clamping plate 13, and the size of the ear plate clamping opening can be adjusted to adapt to syringes of different specifications.

[0033] During use, the syringe barrel is installed on the V-shaped groove 16, and the limit top plate 14 is installed on the syringe mounting bracket 12 through the adjusting bolt 15 to clamp the barrel 9. At the same time, the ear plate 11 at the end of the barrel 9 is placed into the ear plate clamping opening for clamping to prevent loosening, and the pressing plate 8 at the end of the piston rod is placed into the pressing plate clamping opening for clamping.

[0034] Then, through input operations on the operation display screen 2, the total amount of infusion and the infusion time are determined, and the controller controls the motor to drive the lead screw 4 to rotate uniformly, which is converted into the linear motion of the slider 6, thereby ensuring the stability of the infusion.

[0035] The utility model provides an integrated injection pump, which has a simple structure and convenient operation. By setting the first clamping mechanism and the second clamping mechanism, the clamping range of the clamping mechanism can be adjusted, which is applicable to syringes of different specifications and sizes for infusion, improves the applicable range, reduces the production cost of the instrument, and at the same time, the controller controls the stable rotation of the lead screw to drive the slider to move, ensuring the stability of the infusion speed.

Claims

1. Integrated injection pump, characterized by: The invention comprises a controller (1), wherein the front side of the controller (1) is provided with an operation display screen (2) for easy operation, and the controller (1) adopts a PLC controller; the left and right ends of the controller (1) are respectively provided with an end support (3) and a syringe mounting frame (12); a driving mechanism for driving the syringe piston rod to move is installed between the syringe mounting frame (12) and the end support (3); the driving mechanism is also provided with a first clamping mechanism for clamping and adjusting a pressure plate (9) at the outer end of the syringe piston rod; a second clamping mechanism for clamping and adjusting an ear plate (11) at the end of a syringe barrel (10) is installed on one side of the syringe mounting frame (12) arranged opposite to the first clamping mechanism; the syringe mounting frame (12) is provided with a V-shaped groove (16) matched with the syringe barrel (10), and the top of the vertical plates on both sides of the syringe mounting frame (12) are also provided with a top clamping mechanism for clamping the syringe in cooperation with the V-shaped groove (16).

2. The integrated injection pump according to claim 1, characterized in that: The driving mechanism comprises a lead screw (4) mounted on the central axis between the syringe mounting frame (12) and the end support (3) and a slider (6) threadedly mounted on the lead screw (4); the lead screw (4) is driven by a rotary motor mounted inside the end support (3), and the controlled end of the rotary motor is connected to the output end of the controller.

3. The integrated injection pump according to claim 2, characterized in that: Guide rods (5) for balancing and guiding are symmetrically arranged on the front and rear sides of the lead screw (4), and the guide rods (5) are also installed between the end support (3) and the syringe mounting frame (12).

4. The integrated injection pump according to claim 2, characterized in that: The first clamping mechanism comprises a first clamping plate (7) slidably mounted on the slider (6); the first clamping plate (7) is arranged in an L-shape; a pressure plate clamping opening for clamping the pressure plate (9) is formed between a vertical portion of the first clamping plate (7) and a side wall of the slider (6).

5. The integrated injection pump according to claim 4, characterized in that: The top of the slider (6) is symmetrically provided with a threaded rod, and both ends of the horizontal portion of the first clamping plate (7) are provided with notches matching the size of the threaded rod, and the first clamping plate (7) is mounted on the threaded rod via a locking nut.

6. The integrated injection pump according to claim 1, characterized in that: The second clamping mechanism comprises an L-shaped second clamping plate (13) slidably mounted on the syringe mounting frame (12), and an ear plate clamping opening for clamping the ear plate (11) is formed between the vertical portion of the second clamping plate (13) and the side wall of the syringe mounting frame (12).

7. The integrated injection pump according to claim 6, characterized in that: The second clamping plate (13) is locked and connected to the threaded rod at the top of the syringe mounting frame (12) through a locking nut (8), and a notch for slidingly fitting with the threaded rod is also provided on the horizontal part of the second clamping plate (13).

8. The integrated injection pump according to claim 1, characterized in that: Positioning pins for positioning the end support (3) and the syringe mounting frame (12) are respectively arranged at both ends of the top of the controller (1).

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