Split type high-pressure injection pump

Abstract

The utility model discloses a split type high-pressure injection pump, and relates to the technical field of injection pumps. Comprising a bottom plate; the front supporting block is arranged on the bottom plate; the rear supporting box is arranged on the bottom plate, a screw rod is arranged between the front supporting block and the rear supporting box, the two ends of the screw rod are rotationally connected with the front supporting block and the rear supporting box respectively, a supporting groove is formed in the rear supporting box, the direction of the supporting groove is the same as that of the screw rod, a pressing plate is arranged on the rear supporting box, and the pressing plate is arranged on the supporting groove; the push plate slides on the bottom plate, the push plate is provided with a threaded hole, the threaded hole is provided with an internal thread, the internal thread is in transmission connection with the screw, and the screw drives the push plate; the motor is arranged below the bottom plate, the screw extends into the rear supporting box, and the end, extending into the rear supporting box, of the screw is in transmission connection with the output end of the motor. The push plate is driven by the screw, high-precision movement of the push plate can be realized, high-precision pushing of an injector can be realized, and high-precision pumping can be realized.

Description

Technical Field

[0001] This utility model relates to the field of injection pump technology, and more specifically to a split-type high-pressure injection pump. Background Technology

[0002] An injection pump is an automated injection device that achieves automatic injection primarily by precisely controlling the feed of the syringe piston handle. To facilitate syringe clamping, injection pumps generally include a linearly feedable plunger and a pusher head located at the exposed end of the plunger. The pusher head is equipped with claws that cooperate with the claws to clamp the flange at the end of the syringe piston handle. However, existing injection pumps often suffer from low metering accuracy.

[0003] Therefore, how to provide a split-type high-pressure injection pump that can perform high-precision pumping is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0004] In view of this, the present invention provides a split-type high-pressure injection pump, which aims to solve the problems in the background art and achieve high-precision pumping.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A split-type high-pressure injection pump, comprising:

[0007] Base plate;

[0008] Front support block, the front support block being disposed on the base plate;

[0009] A rear support box is provided on the base plate. A screw is provided between the front support block and the rear support box. The two ends of the screw are rotatably connected to the front support block and the rear support box, respectively. A support groove is provided on the rear support box. The support groove is in the same direction as the screw. A pressure plate is provided on the rear support box. The pressure plate is provided on the support groove.

[0010] A push plate slides on a base plate. The push plate has a threaded hole with an internal thread. The internal thread is connected to a screw, which drives the push plate.

[0011] The motor is located below the base plate, and the screw extends into the rear support box. One end of the screw extending into the rear support box is connected to the output end of the motor for transmission.

[0012] Furthermore, a sliding rod is provided between the front support block and the rear support box, the push plate is slidably connected on the sliding rod, the two ends of the sliding rod are fixedly connected to the front support block and the rear support box respectively, and the sliding rod and the screw are parallel to each other.

[0013] Furthermore, the slide bar is provided with abutments, and there are two abutments respectively located at both ends of the push plate on the slide bar.

[0014] Furthermore, the cross-section of the support groove is triangular, and the pressure plate on the support groove is triangular.

[0015] Furthermore, the push plate is provided with a transverse through hole, which communicates with and passes through the threaded hole. The axis of the threaded hole is perpendicular to the axis of the transverse through hole. A rotary switch is provided in the transverse through hole. The rotary switch includes a slider, a rotating block spring, and a through hole on the slider. The through hole includes a semi-circular hole and a rectangular hole. The screw passes through the through hole. An internal thread is provided on the semi-circular hole. The internal thread is threaded to the screw. The screw slides between the semi-circular hole and the rectangular hole. The rotating block is rotatably connected to the inner wall of the transverse through hole. A wedge is provided at one end of the rotating block near the slider. A wedge groove is provided on the slider corresponding to the position of the wedge. The wedge and the wedge groove cooperate. When the rotating block is rotated, the wedge pushes the wedge groove, and the rotating block pushes the slider. The internal thread separates from the screw, and the screw slides into the rectangular hole. One end of the spring is connected to the slider, and the other end of the spring is connected to the transverse through hole.

[0016] As can be seen from the above technical solution, compared with the prior art, this utility model discloses a split-type high-pressure injection pump. By setting a screw to drive the push plate, the push plate can be moved with high precision, thereby enabling high-precision pushing of the syringe and achieving high-precision pumping. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0018] Figure 1 An overall structural diagram of an independent two-channel injection pump provided by this utility model;

[0019] Figure 2 Bottom structure diagram of an independent two-channel injection pump provided by this utility model;

[0020] Figure 3 The present invention provides an overall structural diagram of an independent two-channel syringe pump rotary switch.

[0021] Wherein: 1 is the base plate; 2 is the front support block; 3 is the rear support box; 4 is the screw; 5 is the support groove; 6 is the pressure plate; 7 is the push plate; 8 is the motor; 9 is the slide rod; 10 is the stop block; 11 is the rotary switch; 111 is the slider; 112 is the rotating block; 113 is the spring; 12 is the through hole; 121 is the semi-circular hole; 122 is the rectangular hole; 13 is the wedge block; 14 is the wedge groove. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] See Figure 1-3 This utility model discloses a split-type high-pressure injection pump, comprising:

[0024] Base plate 1; In this embodiment, base plate 1 is used to support front support block 2 and rear support box 3. A fixing box is provided below base plate 1. The top of the fixing box is fixedly connected to the top plate. The fixing box is set in the position to be used. Base plate 1 is a flat plate.

[0025] A front support block 2 is mounted on a base plate 1; a rear support box 3 is mounted on the base plate 1. A screw 4 is provided between the front support block 2 and the rear support box 3, with both ends of the screw 4 rotatably connected to the front support block 2 and the rear support box 3 respectively. A support groove 5 is provided on the rear support box 3, with the support groove 5 having the same direction as the screw 4. A pressure plate 6 is provided on the rear support box 3, and the pressure plate 6 is mounted on the support groove 5. In this embodiment, the front support block 2 is fixedly connected to the screw 4 via bearings, and the rear support box 3 is rotatably connected to the screw 4 via bearings. The screw 4 is parallel to the base plate 1, and both the screw 4 and the base plate 1 are horizontally positioned.

[0026] The push plate 7 slides on the base plate 1. The push plate 7 has a threaded hole with an internal thread, which is connected to the screw 4 for transmission. The screw 4 drives the push plate 7. In this embodiment, the push plate 7 can slide on the base plate 1 to push the syringe. An anti-collision pad is provided on the side of the push plate 7 facing the rear support box 3, and an anti-collision pad is also provided on the side of the rear support box 3 facing the push plate 7. During use, the anti-collision pad effectively prevents collisions between the push plate 7 and the rear support box 3, thus preventing damage. The part of the push plate 7 used to push the syringe does not have an anti-collision pad, which effectively improves the accuracy during use. The push plate 7 with its helical drive enables high-precision pumping.

[0027] Motor 8 is located below base plate 1. Screw 4 extends into rear support box 3. One end of screw 4 extending into rear support box 3 is connected to the output end of motor 8. In this embodiment, motor 8 is a servo motor. By controlling the high-precision rotation of motor 8, the high-precision rotation of screw 4 can be controlled. The high-precision rotation of screw 4 can drive push plate 7 to move with high precision, thereby achieving high-precision drive of syringe.

[0028] A slide rod 9 is provided between the front support block 2 and the rear support box 3. The push plate 7 is slidably connected on the slide rod 9. The two ends of the slide rod 9 are fixedly connected to the front support block 2 and the rear support box 3, respectively. The slide rod 9 and the screw 4 are parallel to each other. Two abutments 10 are provided on the slide rod 9 and are respectively provided on both ends of the push plate 7 on the slide rod 9. In this embodiment, there are two slide rods 9, which are arranged parallel to each other and are located on both sides of the screw 4. The two slide rods 9 can prevent the push plate 7 from deflecting. The push plate 7 can always be parallel to the front support block 2 and the rear support box 3. By providing the abutments 10, the push plate can be effectively braked.

[0029] The cross-section of the support groove 5 is triangular, and the pressure plate 6 on the support groove 5 is triangular. In this embodiment, the triangular support groove 5 and the triangular pressure plate 6 can fix the syringe. A fixing hole is provided on one side of the pressure plate 6, and a fixing nail is provided in the fixing hole. The fixing nail passes through the fixing hole and is connected to the rear support box 3 by threads.

[0030] The push plate 7 has a transverse through hole that connects to and passes through a threaded hole. The axis of the threaded hole is perpendicular to the axis of the transverse through hole. A rotary switch 11 is installed in the transverse through hole. The rotary switch 11 includes a slider 111, a rotating block 112, and a spring 113. A through hole 12 is provided on the slider, which includes a semi-circular hole 121 and a rectangular hole 122. A screw 4 passes through the through hole 12. An internal thread is provided on the semi-circular hole 121, which is threadedly connected to the screw 4. The screw 4 slides between the semi-circular hole 121 and the rectangular hole 122. The rotating block 112 is rotatably connected to the inner wall of the transverse hole. A wedge 13 is provided at one end of the rotating block 112 near the slider 111. A wedge groove 14 is provided on the slider 111 at the position corresponding to the wedge 13. The wedge 13 and the wedge groove 14 cooperate. When the rotating block 112 is rotated, the wedge 13 pushes the wedge groove 14, and the rotating block 112 pushes the slider 111. The internal thread separates from the screw 4, and the screw 4 slides into the rectangular hole 122. One end of the spring 113 is connected to the slider 111, and the other end of the spring 113 is connected to the transverse hole.

Claims

1. A split high pressure syringe pump, characterized in that, include: Base plate; Front support block, the front support block being disposed on the base plate; A rear support box is provided on the base plate. A screw is provided between the front support block and the rear support box. The two ends of the screw are rotatably connected to the front support block and the rear support box, respectively. A support groove is provided on the rear support box. The support groove is in the same direction as the screw. A pressure plate is provided on the rear support box. The pressure plate is provided on the support groove. A push plate slides on a base plate. The push plate has a threaded hole with an internal thread. The internal thread is connected to a screw, which drives the push plate. The motor is located below the base plate, and the screw extends into the rear support box. One end of the screw extending into the rear support box is connected to the output end of the motor for transmission. The push plate has a through hole that communicates with and passes through the threaded hole. The axis of the threaded hole is perpendicular to the axis of the through hole. A rotary switch is provided in the through hole. The rotary switch includes a slider, a rotating block, and a spring. The slider has a through hole, which includes a semi-circular hole and a rectangular hole. The screw passes through the through hole. The semi-circular hole has an internal thread that is threaded to the screw. The screw slides between the semi-circular hole and the rectangular hole. The rotating block is rotatably connected to the inner wall of the through hole. A wedge is provided at one end of the rotating block near the slider. A wedge groove is provided on the slider corresponding to the position of the wedge. The wedge engages with the wedge groove.

2. The split high pressure syringe pump of claim 1, wherein, A sliding rod is provided between the front support block and the rear support box. The push plate is slidably connected on the sliding rod. The two ends of the sliding rod are fixedly connected to the front support block and the rear support box, respectively. The sliding rod and the screw are parallel to each other.

3. A split high pressure syringe pump as claimed in claim 2, wherein, The slide bar is provided with abutment blocks, and there are two abutment blocks, which are respectively located at both ends of the push plate on the slide bar.

4. The split high pressure syringe pump of claim 1, wherein, The cross-section of the support groove is triangular, and the pressure plate on the support groove is triangular.

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