Medicine conveying device

Abstract

The embodiment of the utility model provides a medicine conveying device which comprises a three-dimensional frame, a driving mechanism and a lifting platform, and the driving mechanism is arranged in the three-dimensional frame and located at the bottom of the three-dimensional frame. The driving mechanism is provided with an output part used for outputting vertical reciprocating motion, and the lifting platform is connected with the output part. In the embodiment of the utility model, the driving mechanism is arranged at the bottom in the three-dimensional frame, so that the driving mechanism can be prevented from interfering with a laminar flow system of the isolator, and the risk of medicine pollution is further reduced. And meanwhile, the driving mechanism arranged at the bottom is convenient for maintenance personnel to directly clean and overhaul, the operation complexity is low, and the potential safety hazard is small. In addition, the driving mechanism is arranged at the bottom in the three-dimensional frame, the gravity center of the medicine conveying device can be lowered, and the operation stability is improved.

Description

Technical Field

[0001] This utility model relates to the field of pharmaceutical machinery, and more particularly to a drug delivery device. Background Technology

[0002] In the production process of freeze-dried pharmaceutical raw materials, after the powder is freeze-dried, it is usually manually scraped from each freeze-drying machine plate, collected into a hopper, and then transported away for later use. To facilitate discharging from plates of different heights, existing technology uses the powder discharging trolley described in patent CN207375137U. This trolley uses a lifting frame device to connect with freeze-drying machine plates of different heights and effectively reduces direct contact between personnel and pharmaceuticals. However, in practical industrial applications, two major technical drawbacks are still exposed: First, since the isolator laminar flow system is usually located on top of the discharging trolley, the lifting drive device on top can easily interfere with the isolator laminar flow system, affecting the air cleanliness of the discharging trolley and increasing the risk of pharmaceutical contamination. Second, the top-mounted lifting mechanism requires maintenance personnel to use a separate ladder for cleaning and maintenance, which not only increases operational complexity but also poses safety hazards. Utility Model Content

[0003] This utility model provides a drug conveying device, which aims to improve the problems of existing powder drug discharge trolleys where the lifting drive device easily interferes with the isolator laminar flow system and is difficult to clean and maintain.

[0004] Specifically, this utility model provides a drug delivery device, including a three-dimensional frame, a drive mechanism, and a lifting platform. The drive mechanism is disposed within the three-dimensional frame and located at the bottom of the three-dimensional frame. The drive mechanism has an output part for outputting vertical reciprocating motion, and the lifting platform is connected to the output part.

[0005] Optionally, the drive mechanism includes a servo motor and a lead screw, the lead screw being arranged vertically, and the bottom end of the lead screw being connected to the output end of the servo motor.

[0006] Optionally, the drive mechanism further includes a first reducer, a first drive shaft, a second reducer, a second drive shaft, and a third reducer; the servo motor has a rotor extending along a first direction, and the input end of the first reducer is connected to the rotor; the first drive shaft extends along a second direction, and its two ends are respectively connected to the output end of the first reducer and the input end of the second reducer, the second direction being perpendicular to the first direction, and both the second direction and the first direction being perpendicular to the vertical; the second drive shaft extends along the first direction, and its two ends are respectively connected to the output end of the second reducer and the input end of the third reducer; the lead screw is connected to the output end of the third reducer.

[0007] Optionally, the first reducer and the second reducer are both T-type reducers, and the third reducer is an L-type reducer; each of the two output ends of the first reducer is connected to a first drive shaft; each first drive shaft is connected to a second reducer; and each output end of the second reducer is connected to a second drive shaft.

[0008] Optionally, the lifting platform includes a platform body and a connecting block disposed at the bottom of the platform body, the connecting block having a threaded hole for screwing onto the lead screw.

[0009] Optionally, the drug conveying device further includes a material-catching mechanism for scraping material, which is disposed on the lifting platform.

[0010] Optionally, the drug delivery device further includes a first base plate and a second base plate, wherein the first base plate is disposed at the lower end of the three-dimensional frame; the second base plate is disposed within the three-dimensional frame and spaced apart from the first base plate; the driving mechanism is disposed on the second base plate, and the driving mechanism is at least partially located between the first base plate and the second base plate.

[0011] Optionally, the drug delivery device further includes an electrical cabinet, which is mounted on the first base plate and located on one side of the second base plate; the upper surface of the electrical cabinet is not lower than the upper surface of the second base plate.

[0012] Optionally, the bottom of the first base plate is provided with a drive motor and a plurality of wheels, the wheels being rotatable; at least one of the wheels is connected to the output end of the drive motor.

[0013] Optionally, the drug delivery device further includes a static pressure chamber, which is disposed on top of the three-dimensional frame.

[0014] The beneficial effects of this utility model are as follows:

[0015] In the drug delivery device provided by this utility model, the drive mechanism is located at the bottom of the three-dimensional frame, which avoids interfering with the laminar flow system of the isolator, thereby reducing the risk of drug contamination. At the same time, the bottom-mounted drive mechanism facilitates cleaning and maintenance by maintenance personnel, resulting in low operational complexity and minimal safety hazards. Furthermore, the bottom-mounted drive mechanism within the three-dimensional frame also helps lower the center of gravity of the drug delivery device, improving operational stability. Attached Figure Description

[0016] Figure 1 This is a schematic structural diagram of a drug delivery device provided in an embodiment of the present invention;

[0017] Figure 2 This is a schematic partial structural diagram of a drug delivery device provided in an embodiment of the present invention;

[0018] Figure 3 This is a schematic partial structural diagram of a drug delivery device provided in an embodiment of the present invention;

[0019] Figure 4 This is a schematic structural diagram of the drive mechanism in a drug delivery device provided in an embodiment of this utility model.

[0020] Explanation of reference numerals in the attached figures:

[0021] 100. Three-dimensional frame; 200. Drive mechanism; 210. Servo motor; 220. Lead screw; 230. First reducer; 240. First drive shaft; 250. Second reducer; 260. Second drive shaft; 270. Third reducer; 280. Limit bearing; 300. Lifting platform; 310. Platform body; 320. Connecting block; 410. First base plate; 420. Second base plate; 500. Electrical cabinet; 600. Material collection mechanism; 710. Drive motor; 720. Traveling wheels; 800. Static pressure box. Detailed Implementation

[0022] To make the technical problems solved, technical solutions, and beneficial effects 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.

[0023] In the description of this utility model, it should be understood that the terms "longitudinal," "radial," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this 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 this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] Figure 1 This is a schematic structural diagram of a drug delivery device provided in one embodiment of this utility model. Figure 1 As shown, and refer to Figures 2 to 4 The present invention provides a drug delivery device, including a three-dimensional frame 100, a drive mechanism 200 and a lifting platform 300. The drive mechanism 200 is disposed inside the three-dimensional frame 100 and located at the bottom of the three-dimensional frame 100. The drive mechanism 200 has an output part for outputting vertical reciprocating motion, and the lifting platform 300 is connected to the output part.

[0026] In this embodiment of the invention, by placing the drive mechanism 200 at the bottom within the three-dimensional frame 100, interference with the isolator laminar flow system can be avoided, thereby reducing the risk of drug contamination. Simultaneously, the bottom-mounted drive mechanism 200 facilitates direct cleaning and maintenance by maintenance personnel, resulting in low operational complexity and minimal safety hazards. Furthermore, the bottom-mounted drive mechanism 200 within the three-dimensional frame 100 also helps lower the center of gravity of the drug delivery device, improving operational stability.

[0027] In application, the drive mechanism 200 is activated, causing the lifting platform 300 to move vertically back and forth. It stops when it is at the same height as a certain layer of the freeze dryer to discharge material. After the material of that layer is discharged, the drive mechanism 200 continues to control the movement of the lifting platform 300 to align with other layers of the freeze dryer for discharge. It can adapt to freeze dryers with multiple layers.

[0028] In one embodiment of this utility model, the drive mechanism 200 includes a servo motor 210 and a lead screw 220. The lead screw 220 is vertically arranged, and its bottom end is connected to the output end of the servo motor 210. Further, the lifting platform 300 includes a platform body 310 and a connecting block 320 disposed at the bottom of the platform body 310. The connecting block 320 has a threaded hole for screwing onto the lead screw 220.

[0029] In application, the servo motor 210 starts, driving the lead screw 220 to rotate, which in turn drives the platform body 310 to move along the axial direction of the lead screw 220 via the connecting block 320. Since the servo motor 210 can rotate in both directions, the lead screw 220 can be rotated in either direction, thereby causing the platform body 310 to reciprocate vertically.

[0030] Specifically, such as Figure 4 As shown, the first direction is the X-axis, the second direction is the Y-axis, and the vertical direction is the Z-axis. The drive mechanism 200 also includes a first reducer 230, a first drive shaft 240, a second reducer 250, a second drive shaft 260, and a third reducer 270; the servo motor 210 has a rotor extending along the first direction, and the input end of the first reducer 230 is connected to the rotor; the first drive shaft 240 extends along the second direction, and its two ends are respectively connected to the output end of the first reducer 230 and the input end of the second reducer 250, the second direction being perpendicular to the first direction, and both the second direction and the first direction being perpendicular to the vertical; the second drive shaft 260 extends along the first direction, and its two ends are respectively connected to the output end of the second reducer 250 and the input end of the third reducer 270; the lead screw 220 is connected to the output end of the third reducer 270. When the servo motor 210 starts, it drives the lead screw 220 to rotate through the first reducer 230, the first drive shaft 240, the second reducer 250, the first drive shaft 240, and the third reducer 270.

[0031] Furthermore, the first reducer 230 and the second reducer 250 are both T-type reducers, and the third reducer 270 is an L-type reducer; there are two second reducers 250, four third reducers 270, and four second drive shafts 260. Each of the two output ends of the first reducer 230 is connected to a first drive shaft 240; each first drive shaft 240 is connected to a second reducer 250; and each output end of the second reducer 250 is connected to a second drive shaft 260. Each third reducer 270 is connected to a lead screw 220; a connecting block 320 is screwed onto each lead screw 220, and each connecting block 320 is connected to the platform body 310, thereby restricting the platform body 310 to move only along the axial direction of the lead screw 220.

[0032] like Figure 2 , Figure 3As shown, in one embodiment of this utility model, the drug delivery device further includes a first base plate 410 and a second base plate 420. The first base plate 410 is disposed at the lower end of the three-dimensional frame 100; the second base plate 420 is disposed within the three-dimensional frame 100 and spaced apart from the first base plate 410; a drive mechanism 200 is disposed on the second base plate 420, and the drive mechanism 200 is at least partially located between the first base plate 410 and the second base plate 420. Specifically, the servo motor 210, the first reducer 230, the first drive shaft 240, the second reducer 250, the first drive shaft 240, and the third reducer 270 are all disposed below the second base plate 420; the second base plate 420 has a through hole, and the lead screw 220 passes through the through hole and connects to the third reducer 270. The drive mechanism 200 also includes a limiting bearing 280, which is fixed on the second base plate 420 and sleeved on the first drive shaft 240. More specifically, the second base plate 420 is provided with multiple support columns, each support column is located on one side of a lead screw 220 and is arranged parallel to the lead screw 220. A fixing block is provided at the top of the support column, and the fixing block is rotatably connected to the lead screw 220 to provide support at the top of the lead screw 220 and prevent the lead screw 220 from shaking.

[0033] In one embodiment of this utility model, the drug delivery device further includes an electrical cabinet 500, which is disposed on the first base plate 410 and located on one side of the second base plate 420; the upper surface of the electrical cabinet 500 is not lower than the upper surface of the second base plate 420. By placing the electrical cabinet 500 on one side of the second base plate 420, both the electrical cabinet 500 and the drive mechanism 200 are located at the bottom of the drug delivery device, avoiding the electrical cabinet 500 and the drive mechanism 200 being arranged sequentially in the vertical direction, reducing the overall volume of the device, and making reasonable use of the bottom space of the drug delivery device.

[0034] Furthermore, the difference between the height of the electrical cabinet 500 and the height of the connecting block 320 is not less than the distance between the second base plate 420 and the first base plate 410. This arrangement allows the lower end face of the platform body 310 to contact the upper end face of the electrical cabinet 500 when the lifting platform 300 is lowered to its lowest position. This enables the platform body 310 to receive materials from the bottom freeze dryer plate. On the other hand, it saves the volume occupied by the drive mechanism 200 and improves the space utilization of the drug conveying device.

[0035] In one embodiment of this utility model, the drug conveying device further includes a material-catching mechanism 600 for scraping materials, which is mounted on the lifting platform 300. After the platform body 310 is connected to the freeze dryer trays, the material-catching mechanism 600 scrapes the drugs on the freeze dryer trays onto the platform body 310, avoiding manual contact and reducing the risk of drug contamination.

[0036] In one embodiment of the present invention, a drive motor 710 and a plurality of wheels 720 are provided at the bottom of the first base plate 410, and the wheels 720 are rotatable; at least one wheel 720 is connected to the output end of the drive motor 710 to facilitate the movement of the drug delivery device.

[0037] In one embodiment of this utility model, the drug delivery device further includes a static pressure box 800, which is disposed on the top of the three-dimensional frame 100. By placing the static pressure box 800 in the drug delivery device, and the drive mechanism 200 and the lifting platform 300 at the bottom of the drug delivery device, the drive mechanism 200 and the lifting platform 300 can be prevented from interfering with the laminar flow air delivered by the static pressure box 800, thereby reducing the risk of drug contamination.

[0038] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model, and should all be included within the protection scope of this utility model.

Claims

1. A drug delivery device, characterized in that, It includes a three-dimensional frame (100), a drive mechanism (200) and a lifting platform (300). The drive mechanism (200) is disposed inside the three-dimensional frame (100) and located at the bottom of the three-dimensional frame (100). The drive mechanism (200) has an output part for outputting vertical reciprocating motion, and the lifting platform (300) is connected to the output part.

2. A drug delivery device as in claim 1, wherein, The drive mechanism (200) includes a servo motor (210) and a lead screw (220). The lead screw (220) is arranged vertically, and the bottom end of the lead screw (220) is connected to the output end of the servo motor (210).

3. A drug delivery device as in claim 2, wherein, The drive mechanism (200) further includes a first reducer (230), a first drive shaft (240), a second reducer (250), a second drive shaft (260), and a third reducer (270); the servo motor (210) has a rotor extending along a first direction, and the input end of the first reducer (230) is connected to the rotor; the first drive shaft (240) extends along a second direction, and both ends of the first drive shaft (240) are respectively connected to the output end of the first reducer (230) and the input end of the second reducer (250), the second direction is perpendicular to the first direction, and both the second direction and the first direction are perpendicular to the vertical; the second drive shaft (260) extends along the first direction, and both ends of the second drive shaft (260) are respectively connected to the output end of the second reducer (250) and the input end of the third reducer (270); the lead screw (220) is connected to the output end of the third reducer (270).

4. A drug delivery device as in claim 3, wherein The first reducer (230) and the second reducer (250) are both T-type reducers, and the third reducer (270) is an L-type reducer; each of the two output ends of the first reducer (230) is connected to a first drive shaft (240); each first drive shaft (240) is connected to a second reducer (250); each output end of the second reducer (250) is connected to a second drive shaft (260).

5. The drug delivery device of claim 2, wherein, The lifting platform (300) includes a platform body (310) and a connecting block (320) disposed at the bottom of the platform body (310). The connecting block (320) is provided with a threaded hole for screwing onto the lead screw (220).

6. The drug delivery device of claim 1, wherein, The drug conveying device also includes a material catching mechanism (600) for catching materials, which is mounted on the lifting platform (300).

7. The drug delivery device of claim 1, wherein, The drug delivery device further includes a first base plate (410) and a second base plate (420). The first base plate (410) is disposed at the lower end of the three-dimensional frame (100). The second base plate (420) is disposed inside the three-dimensional frame (100) and spaced apart from the first base plate (410). The driving mechanism (200) is disposed on the second base plate (420) and the driving mechanism (200) is at least partially located between the first base plate (410) and the second base plate (420).

8. A drug delivery device as in claim 7, wherein, The drug delivery device also includes an electrical cabinet (500), which is mounted on the first base plate (410) and located on one side of the second base plate (420); the upper surface of the electrical cabinet (500) is not lower than the upper surface of the second base plate (420).

9. The drug delivery device of claim 7, wherein, The bottom of the first base plate (410) is provided with a drive motor (710) and a plurality of walking wheels (720), the walking wheels (720) being rotatable; at least one of the walking wheels (720) is connected to the output end of the drive motor (710).

10. The drug delivery device of claim 1, wherein, The drug delivery device also includes a static pressure chamber (800), which is located on top of the three-dimensional frame (100).

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