Quantitative dispensing device

Abstract

The utility model discloses a quantitative medicine dispensing device which comprises a bottom plate and further comprises a power system, a needle tube clamping and discarding system and a detection system, the power system is arranged on the bottom plate, according to the quantitative medicine dispensing device, a needle tube drawing seat is in sliding connection with an abutting plate, and the needle tube drawing seat is limited through the abutting plate; when a medicament is injected into a medicine bottle, gas in a needle tube is also injected into the medicine bottle, so that the internal pressure of the medicine bottle is increased, an electric push rod extends, and an abutting plate moves in the direction far away from a needle tube drawing seat, so that the limitation on the needle tube drawing seat is relieved, the gas is guided into the needle tube, and the internal pressure of the medicine bottle is reduced; and then the needle head is pulled out, so that the medicine is prevented from being discharged along the needle eye due to pressure intensity to cause liquid leakage and loss.

Description

Technical Field

[0001] The utility model relates to the technical field of quantitative medicine dispensing, in particular to a quantitative medicine dispensing device. Background Art

[0002] The existing method of dispensing medicines often relies on manual dispensing due to equipment cost issues. This involves manual clamping and removal of syringes, which is inefficient and may contaminate the syringes after medical staff come into contact with the dispensed medicines, as well as the risk of needle stick injuries.

[0003] Some existing mechanical dispensing devices include a grasping structure and a conveying mechanism. The conveying structure conveys the syringe to a specified position, and then the syringe is grasped by the grasping structure. The medicine is extracted from the syringe by a mechanical mechanism and then injected into the medicine. However, the mechanical structure is used to control the syringe handle to absorb the medicine in the medicine bottle, which easily generates bubbles during the absorption process. When the medicine in the syringe is then injected into the specified medicine bottle, bubbles are injected into the medicine bottle during the injection process, which increases the pressure inside the medicine bottle. Since the syringe handle is held in place by the mechanical structure, the gas in the bottle cannot flow back into the syringe. Affected by the pressure, the liquid may spill during the separation process, thereby causing the medicine to leak and cause pollution.

[0004] Furthermore, in the existing devices, it is not possible to well control the amount of medicine absorbed by the needle.

[0005] Therefore, the utility model provides a quantitative dispensing device to solve the above problems. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides a quantitative medicine dispensing device to solve the above problems.

[0007] To achieve the above objectives, the utility model is implemented through the following technical solutions: a quantitative dispensing device, including a base plate, and also including a power system, a needle tube clamping and discarding system and a detection system. The power system is arranged on the base plate, the needle tube clamping and discarding system is arranged on the right side of the power system, and the detection system is arranged on the side of the needle tube clamping and discarding system.

[0008] Preferably, the power system includes a servo motor, a first fixed plate is fixedly connected to the base plate, the servo motor is fixedly connected to the base plate through the first fixed plate, a first synchronous wheel is fixedly connected to the output end of the servo motor, and a synchronous belt is transmission-connected to the outer side of the first synchronous wheel.

[0009] Preferably, the inner side of the synchronous belt is transmission-connected with a second synchronous wheel, one side of the second synchronous wheel is fixedly connected with a screw rod, and the outer side of the screw rod is threadedly connected with a sleeve.

[0010] Preferably, a bearing block is fixedly connected to the bottom plate, the lead screw is rotatably connected to the bearing block, a linear guide rail is arranged on the bottom plate, and a connecting piece is fixedly connected to the outside of the sleeve.

[0011] Preferably, the syringe clamping and discarding system includes a second fixing plate, the second fixing plate is fixedly connected to the connecting piece, a syringe pulling seat is slidably connected to the side of the second fixing plate, and the linear guide rail is slidably connected to the second fixing plate.

[0012] Preferably, the second fixing plate limits the syringe pulling seat near the syringe handle clamping end, so that the syringe pulling seat cannot move towards the syringe handle clamping direction relative to the second fixing plate. An electric push rod is fixedly connected to the connecting piece, a syringe rear pushing clamp is fixedly connected to the syringe pulling seat, and a syringe handle clamp is fixedly connected to the bottom plate.

[0013] Preferably, a photoelectric touch plate is fixedly connected to the bottom of the syringe rear pushing clamp, two cylinders are fixedly connected to the bottom plate, clamping claws are arranged on the cylinders, and a resisting plate is fixedly connected to the front end of the electric push rod.

[0014] Preferably, a second photoelectric switch mounting seat is fixedly connected to the bottom plate, and a background suppression type photoelectric sensor is screw-connected to the second photoelectric switch mounting seat.

[0015] Preferably, the detection system further includes a groove type photoelectric sensor. A first photoelectric switch mounting seat is fixedly connected to the bottom plate, and the groove type photoelectric sensor is fixedly connected to the first photoelectric switch mounting seat.

[0016] Preferably, the photoelectric touch plate is located between the groove type photoelectric sensors.

[0017] Advantageous Effects

[0018] The present utility model provides a quantitative medicine dispensing device. Compared with the prior art, it has the following advantageous effects:

[0019] (1) In this quantitative medicine dispensing device, through the sliding connection between the syringe pulling seat and the resisting plate, the syringe pulling seat is limited by the resisting plate. When the medicine is injected into the medicine bottle, if there is gas in the syringe, it will also be injected into the medicine bottle, increasing the internal pressure of the medicine bottle. Then the electric push rod extends, and the resisting plate moves away from the syringe pulling seat, thus releasing the limit on the syringe pulling seat, allowing the gas to flow into the syringe, reducing the internal pressure of the medicine bottle, and then pulling out the needle, thereby avoiding the medicine from flowing out along the needle hole due to pressure, resulting in liquid leakage and loss.

[0020] (2) In this quantitative medicine dispensing device, through the cooperation between the groove type photoelectric sensor and the photoelectric touch plate, the groove type photoelectric sensor is used to control the servo motor to detect the position of the photoelectric touch plate at all times, thereby controlling the amount of medicine.

[0021] (3) The quantitative dispensing device can detect in real time whether the syringe is in the corresponding position through a photoelectric sensor. If the syringe is not clamped properly or drops, it will alarm and stop urgently, improving the reliability of use. Description of the Drawings

[0022] Figure 1 is a three-dimensional view of the overall structure of the present utility model;

[0023] Figure 2 is a side view of the overall structure of the present utility model;

[0024] Figure 3 is a structural diagram of the electric push rod of the present utility model;

[0025] Figure 4 is a top view of the present utility model.

[0026] In the figure: 1, bottom plate;

[0027] Power system: 21, servo motor; 22, first synchronous pulley; 23, synchronous belt; 24, second synchronous pulley; 25, first fixing plate; 26, lead screw; 27, sleeve; 28, linear guide; 29, connecting piece;

[0028] Syringe clamping and discarding system: 31, syringe pulling seat; 32, syringe handle clamp; 33, syringe rear push clamp; 34, cylinder; 35, clamping jaw; 36, photoelectric touch plate; 37, electric push rod; 38, abutting plate; 39, second fixing plate;

[0029] Detection system: 41, background suppression type photoelectric sensor; 42, groove type photoelectric sensor; 43, first photoelectric switch mounting seat; 44, second photoelectric switch mounting seat. Specific Embodiments

[0030] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0031] Embodiment 1:

[0032] Please refer to Figures 1-3 , a quantitative dispensing device, including a bottom plate 1, and further including a power system, a syringe clamping and discarding system, and a detection system. The power system is arranged on the bottom plate 1, the syringe clamping and discarding system is arranged on the right side of the power system, and the detection system is arranged on the side of the syringe clamping and discarding system.

[0033] The power system includes a servo motor 21, a first fixed plate 25 is fixedly connected to the base plate 1, the servo motor 21 is fixedly connected to the base plate 1 through the first fixed plate 25, a first synchronous wheel 22 is fixedly connected to the output end of the servo motor 21, and a synchronous belt 23 is connected to the outer side of the first synchronous wheel 22 for transmission.

[0034] The second synchronous wheel 24 is drivingly connected to the inner side of the synchronous belt 23 , a screw rod 26 is fixedly connected to one side of the second synchronous wheel 24 , and a sleeve 27 is threadedly connected to the outer side of the screw rod 26 .

[0035] A bearing seat is fixedly connected to the base plate 1 , and a screw rod 26 is rotatably connected to the bearing seat. A linear guide rail 28 is arranged on the base plate 1 , and a connecting piece 29 is fixedly connected to the outer side of the sleeve 27 .

[0036] The needle tube clamping and discarding system includes a second fixed plate 39, which is fixedly connected to the connecting member 29, and a needle tube pulling seat 31 is slidably connected to the side of the second fixed plate 39, and the linear guide rail 28 is slidably connected to the second fixed plate 39.

[0037] The second fixed plate 39 limits the needle tube pulling seat 31 near the end of the needle tube handle clamp 32, so that the needle tube pulling seat 31 cannot move toward the direction of the needle tube handle clamp 32 compared to the second fixed plate 39, and the electric push rod 37 is fixedly connected to the connecting piece 29, the needle tube push back clamp 33 is fixedly connected to the needle tube pulling seat 31, and the needle tube handle clamp 32 is fixedly connected to the bottom plate 1.

[0038] A photoelectric touch panel 36 is fixedly connected to the bottom of the needle tube push clamp 33, two cylinders 34 are fixedly connected to the bottom plate 1, and clamping claws 35 are provided on the cylinders 34. A support plate 38 is fixedly connected to the front end of the electric push rod 37.

[0039] A second photoelectric switch mounting base 44 is fixedly connected to the bottom plate 1 , and a background suppression type photoelectric sensor 41 is screwed to the second photoelectric switch mounting base 44 .

[0040] The detection system further includes a slot-shaped photoelectric sensor 42 . A first photoelectric switch mounting seat 43 is fixedly connected to the bottom plate 1 . The slot-shaped photoelectric sensor 42 is fixedly connected to the first photoelectric switch mounting seat 43 .

[0041] The photoelectric touch panel 36 is located between the slot-shaped photoelectric sensors 42 .

[0042] Working principle: Start the servo motor 21. The first synchronous pulley 22 rotates forward. The rotation of the first synchronous pulley 22 drives the transmission of the synchronous belt 23. The transmission of the synchronous belt 23 drives the rotation of the second synchronous pulley 24. The rotation of the second synchronous pulley 24 drives the rotation of the lead screw 26. The rotation of the lead screw 26 causes the sleeve 27 to move. The sleeve 27 drives the connecting piece 29 to move. The movement of the connecting piece 29 drives the movement of the second fixed plate 39. Since the second fixed plate 39 is slidably connected to the syringe pulling seat 31, but there is a limit at the position where the second fixed plate 39 is close to the syringe handle clip 32, when the syringe pulling seat 31 moves towards the abutting plate 38, the second fixed plate 39 drives the syringe pulling seat 31 to move towards the abutting plate 38, causing the second fixed plate 39 to move along the linear guide rail 28 towards the abutting plate 38. At the same time, the syringe rear push clip 33 drives the photoelectric touch plate 36 to move away from the syringe handle clip 32. The syringe handle clip 32 moves between the groove-type photoelectric sensors 42. By detecting the position of the photoelectric touch plate 36 through the groove-type photoelectric sensors 42, the servo motor 21 is controlled to stop moving or move in the reverse direction.

[0043] When the whole device runs to the designated position, the cylinder 34 is used to clamp the syringe with the gripper 35. At the same time, the manipulator drives the device to the position where the syringe is located. Two cylinders 34 are used to clamp the syringe barrel with the gripper 35. The syringe rear push clip 33 fixes the position of the syringe piston handle, and the syringe handle clip 32 fixes the position where the syringe is held by hand. During the working process, the photoelectric sensor on the first photoelectric switch mounting seat 43 continuously detects whether the syringe is in the corresponding position. If the syringe is not clamped correctly or drops, an alarm will be triggered and the device will stop urgently.

[0044] When the syringe sucks the medicine, the servo motor 21 rotates forward, causing the syringe pulling seat 31 and the second fixed plate 39 as a whole to move towards the abutting plate 38, driving the syringe rear push clip 33 to pull the syringe handle. The position of the photoelectric touch plate 36 is continuously detected by the first photoelectric switch mounting seat 43, so as to control the amount of medicine extracted by the syringe. When injecting the extracted medicine into the medicine bottle, the servo motor 21 rotates in the reverse direction. The electric push rod 37 drives the abutting plate 38 to move. The abutting plate 38 abuts against the syringe pulling seat 31, causing the syringe pulling seat 31 as a whole to move towards the syringe handle clip 32. When the syringe rear push clip 33 moves to the designated position, the electric push rod 37 extends, thus releasing the restriction on the syringe pulling seat 31. Since gas is inhaled inside the syringe when sucking the medicine, the air pressure in the medicine bottle increases when injecting the medicine into the medicine bottle. When the restriction of the abutting plate 38 on the syringe pulling seat 31 is released, the gas will flow back into the syringe along the needle, thereby pushing the syringe rear push clip 33 to move in the reverse direction of the abutting plate 38, causing a positional difference between the syringe pulling seat 31 and the second fixed plate 39.

[0045] After the medicine dispensing is completed and the whole device runs to the designated position, the cylinder 34 releases the gripper 35, and the syringe is discarded at the recycling port.

[0046] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0047] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A quantitative dispensing device, comprising a base plate (1), characterized in that: It also includes a power system, a needle tube clamping and discarding system and a detection system, wherein the power system is arranged on the bottom plate (1), the needle tube clamping and discarding system is arranged on the right side of the power system, and the detection system is arranged on the side of the needle tube clamping and discarding system.

2. A quantitative dispensing device according to claim 1, characterized in that: The power system comprises a servo motor (21), a first fixing plate (25) fixedly connected to the base plate (1), the servo motor (21) fixedly connected to the base plate (1) via the first fixing plate (25), a first synchronous wheel (22) fixedly connected to the output end of the servo motor (21), and a synchronous belt (23) drivingly connected to the outer side of the first synchronous wheel (22).

3. A quantitative dispensing device according to claim 2, characterized in that: The inner side of the synchronous belt (23) is drivingly connected to a second synchronous wheel (24), one side of the second synchronous wheel (24) is fixedly connected to a screw rod (26), and the outer side of the screw rod (26) is threadedly connected to a sleeve (27).

4. A quantitative dispensing device according to claim 3, characterized in that: A bearing seat is fixedly connected to the base plate (1), the screw rod (26) is rotatably connected to the bearing seat, a linear guide rail (28) is provided on the base plate (1), and a connecting piece (29) is fixedly connected to the outside of the sleeve (27).

5. A quantitative dispensing device according to claim 4, characterized in that: The needle tube clamping and discarding system comprises a second fixing plate (39), the second fixing plate (39) is fixedly connected to the connecting member (29), a needle tube drawing seat (31) is slidably connected to the side of the second fixing plate (39), and the linear guide rail (28) is slidably connected to the second fixing plate (39).

6. A quantitative dispensing device according to claim 5, characterized in that: The second fixed plate (39) limits the needle tube pull-out seat (31) near the end of the needle tube handle clamp (32), so that the needle tube pull-out seat (31) cannot move in the direction of the needle tube handle clamp (32) relative to the second fixed plate (39); the connecting member (29) is fixedly connected to an electric push rod (37); the needle tube pull-out seat (31) is fixedly connected to a needle tube push-back clamp (33); and the bottom plate (1) is fixedly connected to the needle tube handle clamp (32).

7. A quantitative dispensing device according to claim 6, characterized in that: The bottom of the needle tube push-back clamp (33) is fixedly connected to a photoelectric touch panel (36), the bottom plate (1) is fixedly connected to two cylinders (34), the cylinders (34) are provided with clamping claws (35), and the front end of the electric push rod (37) is fixedly connected to a support plate (38).

8. A quantitative dispensing device according to claim 7, characterized in that: A second photoelectric switch mounting seat (44) is fixedly connected to the bottom plate (1), and a background suppression type photoelectric sensor (41) is screwed to the second photoelectric switch mounting seat (44).

9. A quantitative dispensing device according to claim 1, characterized in that: The detection system further comprises a slot-shaped photoelectric sensor (42), a first photoelectric switch mounting seat (43) being fixedly connected to the bottom plate (1), and the slot-shaped photoelectric sensor (42) being fixedly connected to the first photoelectric switch mounting seat (43).

10. A quantitative dispensing device according to claim 7, characterized in that: The photoelectric touch plate (36) is located between the slot-shaped photoelectric sensors (42).

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