CN112938715A

CN112938715A - Medicine conveying device and pharmacy with same

Info

Publication number: CN112938715A
Application number: CN202110177458.4A
Authority: CN
Inventors: 张广喜; 黄仙
Original assignee: Suzhou Iron Technology Co Ltd
Current assignee: Suzhou Iron Technology Co Ltd
Priority date: 2021-02-09
Filing date: 2021-02-09
Publication date: 2021-06-11
Anticipated expiration: 2041-02-09
Also published as: CN112938715B

Abstract

The invention provides a drug delivery device and a pharmacy with the same, comprising: the elevator comprises a plurality of upright posts, a car and a first driving device; first drive arrangement can drive the car along up-and-down motion is to the stand, be provided with the storage space that is used for depositing the medicine in the car, the first lateral surface of car is provided with the opening of intercommunication exterior space and storage space. This medicine conveyor can transport the medicine between the different floors.

Description

Medicine conveying device and pharmacy with same

Technical Field

The invention relates to the technical field of medicine storage, in particular to a medicine conveying device and a pharmacy with the same.

Background

In a hospital, a medicine storage is usually provided, and due to area limitation, different systems of the medicine storage need to be installed in different floors, so that medicines need to be transported and stored between different floors.

In summary, it is an urgent need to solve the problem of designing a conveying device capable of transporting drugs between different floors.

Disclosure of Invention

The invention aims to provide a medicine conveying device and a pharmacy with the same.

In order to achieve one of the above objects, an embodiment of the present invention provides a drug delivery device including: the elevator comprises a plurality of upright posts, a car and a first driving device; first drive arrangement can drive the car along up-and-down motion is to the stand, be provided with the storage space that is used for depositing the medicine in the car, the first lateral surface of car is provided with the opening of intercommunication exterior space and storage space.

As a further improvement of one embodiment of the invention, the car is square, and three outer side surfaces except the first outer side surface are provided with U-shaped pieces, and each U-shaped piece is correspondingly provided with one upright post; the opening direction of U-shaped spare is kept away from the car, and every stand passes through the opening of corresponding U-shaped spare.

As a further improvement of the embodiment of the present invention, two side edges and a bottom edge of the U-shaped member are rotatably connected with first rollers, and a wheel surface of each first roller abuts against an outer side surface of the corresponding upright post and can roll up and down along the outer side surface.

As a further improvement of an embodiment of the present invention, the bottom surface of the storage space is provided with N limiting convex strips, the top surface of the storage space is provided with N pressing blocks, the N pressing blocks and the N limiting convex strips are arranged in a one-to-one opposite manner, wherein N is a natural number; and a second driving device for driving the pressing block to move up and down is arranged in the car.

As a further improvement of an embodiment of the present invention, in the first outer side face, the opening extends from a bottom face to a top face of the storage space; in the storage space, the limiting convex strip extends inwards along the outer edge of the opening; the pressing block is rotatably connected with a second roller, the lowest point of the wheel surface of the second roller is lower than the lower surface of the pressing block, and the extension line of the limiting convex strip is parallel to the rotating plane of the corresponding second roller.

As a further improvement of an embodiment of the present invention, the number of the cars is two, and the first driving device is disposed at the top ends of the plurality of columns; the first driving device includes: the elevator car driving device comprises a first synchronous belt and a motor for driving the first synchronous belt to rotate, wherein two ends of the first synchronous belt are fixedly connected with different cars respectively.

As a further improvement of an embodiment of the present invention, a fixing device is provided on an upper surface of the car; the fixing device includes: the first side plate of L shaped plate fixed connection to the upper surface of car, second side plate fixed connection to fixed plate, the one end of cliping first synchronous belt between second side plate and the fixed plate, and the surface of fixed plate orientation second side plate is provided with a plurality of horizontal racks.

As a further improvement of one embodiment of the present invention, a door body is arranged on a plurality of columns, the door body includes an upper vertical plate, a lower vertical plate and a third driving device, the upper vertical plate is located right above the lower vertical plate, and the third driving device can control the upper vertical plate and the lower vertical plate to approach or separate from each other; when the car and the door body are at the same height, the opening can be opposite to the door body.

As a further improvement of an embodiment of the present invention, the door further includes: the upper vertical plate and the lower vertical plate can move up and down along the frame; an upper belt wheel is rotatably connected to the upper end of the frame, a lower belt wheel is rotatably connected to the lower end of the frame, a second synchronous belt is wound between the upper belt wheel and the lower belt wheel, the upper belt wheel, the lower belt wheel and the second synchronous belt rotate synchronously, a first belt part in the second synchronous belt is fixedly connected to an upper vertical plate, a second belt part in the second synchronous belt is fixedly connected to a lower vertical plate, and the first belt part and the second belt part are respectively suspended on two sides of the upper belt wheel; the third driving device is used for driving the upper belt pulley and/or the lower belt pulley to rotate.

The embodiment of the invention provides a pharmacy which comprises the medicine conveying device.

Compared with the prior art, the invention has the technical effects that: the embodiment of the invention provides a medicine conveying device and a pharmacy with the same, comprising: the elevator comprises a plurality of upright posts, a car and a first driving device; first drive arrangement can drive the car along up-and-down motion is to the stand, be provided with the storage space that is used for depositing the medicine in the car, the first lateral surface of car is provided with the opening of intercommunication exterior space and storage space. This medicine conveyor can transport the medicine between the different floors.

Drawings

FIG. 1A is a schematic diagram of a drug delivery device in an embodiment of the present invention;

FIG. 1B is a schematic view of a fastening device according to an embodiment of the present invention;

FIG. 1C is an enlarged view of area A of FIG. 1A;

fig. 2A, 2B, 2C and 2D are schematic structural views of the car in the embodiment of the present invention;

FIG. 3A is a schematic structural view of a door body in an embodiment of the present invention;

FIG. 3B is an enlarged view of area B of FIG. 3A;

FIG. 3C is an enlarged view of area C of FIG. 3A;

FIG. 3D is an enlarged view of area D of FIG. 3A;

FIG. 3E is an enlarged view of area E in FIG. 3A;

fig. 4A and 4B are schematic structural views of a U-shaped member in the embodiment of the present invention.

Detailed Description

The present invention will be described in detail below with reference to embodiments shown in the drawings. These embodiments are not intended to limit the present invention, and structural, methodological, or functional changes made by those skilled in the art according to these embodiments are included in the scope of the present invention.

Terms such as "upper," "above," "lower," "below," and the like, used herein to denote relative spatial positions, are used for ease of description to describe one element or feature's relationship to another element or feature as illustrated in the figures. The spatially relative positional terms may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

An embodiment of the present invention provides a drug delivery device, as shown in the drawing, including:

a plurality of upright posts 1, a car 2 and a first driving device 3; first drive arrangement 3 can drive car 2 along column 1 is the up-and-down motion, be provided with the storage space 21 that is used for depositing the medicine in the car 2, the first lateral surface of car 2 is provided with the opening that communicates exterior space and storage space 21.

Here, as shown in fig. 1A, the number of the upright posts 1 may be plural, and all the upright posts extend in the vertical direction, the upright posts 1 may be formed by one section bar, or may be formed by connecting plural section bars end to end, and the cross section of the section bar may be square. In addition, a plurality of cross rods 11 can be arranged between the upright posts 1, and both ends of each cross rod 11 are fixedly connected to different upright posts 1, so that a frame structure can be formed, and it can be understood that the frame structure can effectively improve the firmness of the upright posts 1.

Here, the car 2 moves up and down along the column 1, the car 2 and the column 1 are connected in a sliding or rolling manner, and a locking device may be provided between the car 2 and the column 1, and the locking device ensures that the car 2 can only move up and down along the column 1 and cannot be separated from the column 1, thereby improving the safety of the car 2.

Here, in the case shown in fig. 2A, 2B, 2C, and 2D, an opening is provided in the front outer side face of the car 2.

In this embodiment, the car 2 is square, and three outer side surfaces except the first outer side surface are provided with U-shaped parts 22, and each U-shaped part 22 is correspondingly provided with one upright 1; the opening of the U-shaped part 22 is directed away from the car 2, and each upright 1 passes through the opening of the corresponding U-shaped part 22. As shown in fig. 2A, 2B, 2C and 2D, the car 2 is square, and U-shaped members 22 are provided on the left outer side, right outer side and rear outer side of the car 2, and each U-shaped member 22 has a corresponding column 1 in an opening, it can be understood that the columns 1 can block the car 2, so that the car 2 can move up and down along the columns 1.

In this embodiment, the two side edges and the bottom edge of the U-shaped member 22 are rotatably connected with first rollers 221, and the wheel surfaces of the first rollers 221 abut against the outer side surfaces of the corresponding columns 1 and can roll up and down along the outer side surfaces. Here, it can be understood that the U-shaped member 22 is in rolling connection with the column 1, so that when the car 2 slides up and down along the column 1, the resistance received by the car is very small, and in addition, it can be understood that the column 1 on the outer sides of the left outer side surface, the right outer side surface and the rear outer side surface can firmly clamp the car 2, so that the car 2 can only move up and down along the column 1, and cannot move horizontally, thereby greatly improving the safety.

Here, as shown in fig. 1A, the cross section of the pillar 1 may be square, and more specifically, the first side of the pillar 1 faces the side of the car 2 (i.e., the left outer side, the right outer side, or the rear outer side), and the second side and the third side of the pillar 1 are perpendicular to the first side, so that the first, second, and third sides of the pillar 1 are abutted against the wheel surfaces of the different first rollers 221, respectively.

As shown in fig. 2A, 2B, 2C, 2D, 4A and 4B, the bottom edge of the U-shaped member 22 may be a vertical plate 223, and two horizontal rod sets are oppositely disposed on the outer surface 224 of the vertical plate 223, and the horizontal rod sets form the side edges of the U-shaped member 22. The riser 223 is provided with a first roller 221, and a part of the first roller 221 protrudes from the outer surface 224. Each horizontal rod group comprises two horizontal rods 222 distributed along the up-down direction, each horizontal rod 222 is sleeved with a first roller 221, and the first rollers 221 can rotate around the horizontal rods 222. It will be appreciated that the car 2 can only move up and down along the three columns 1 and cannot move horizontally. As shown in fig. 2A to 2D, a frame composed of a plurality of vertical bars and horizontal bars is provided outside the car 2 in order to improve the rigidity of the car 2. As shown in fig. 4A and 4B, a through hole is provided on the vertical plate 223, two protrusions 225 are provided in the through hole, a connecting rod is provided between the two protrusions 225, two first rollers 221 are sleeved on the connecting rod, the two first rollers 221 can rotate around the connecting rod, and the first rollers 221 protrude from the outer surface 224 and the wheel surface abuts against the outer side surface of the upright 1.

Here, as shown in fig. 4A and 4B, a plurality of through holes may be formed in the riser 223, and a plurality of corresponding screw holes may be correspondingly formed in the outer side surface of the car 2, and then, a screw may be passed through the through hole and screwed into the screw hole, thereby fixedly coupling the U-shaped member 22 to the car 2.

In this embodiment, as shown in fig. 2A to 2D, the bottom surface of the storage space 21 is provided with N limiting convex strips 211, the top surface is provided with N pressing blocks 212, the N pressing blocks 212 and the N limiting convex strips 211 are arranged in a one-to-one correspondence, where N is a natural number; a second driving device for driving the pressing block 212 to move up and down is arranged in the car 2. Here, can be provided with the spacing concave strip with spacing convex strip 211 matched with at the lower surface of drug storage box, when using, insert spacing convex strip 211 in the spacing concave strip, then control briquetting 212 downstream, push down drug storage box, it can be understood that this can prevent effectively that drug storage box from the landing in storage space 21.

Here, as shown in fig. 2A to 2D, the storage space 21 is a square space.

In the present embodiment, the opening extends from the bottom surface to the top surface of the storage space 21 in the first outer side surface; in the storage space 21, the limit protruding strip 211 extends inwards along the outer edge of the opening; the pressing block 212 is rotatably connected with a second roller 213, the lowest point of the wheel surface of the second roller 213 is lower than the lower surface of the pressing block 212, and the extension line of the limiting convex strip 211 is parallel to the rotating plane of the corresponding second roller 213. Here, it is understood that when the control pressing piece 212 moves downward, the tread of the second roller 213 can abut against the upper surface of the cartridge, i.e., there is a sliding connection between the upper surface of the cartridge and the pressing piece 212.

Here, when it is required to remove the medicine storage box from the storage space 21, the pressing block 212 is controlled to move upward for a certain distance, so that the pressure of the second roller 213 on the medicine storage box is reduced, and then the medicine storage box can be drawn out, it can be understood that the resistance received is very small because the medicine storage box is slidably connected with the pressing block 212. Here, when the drug storage box needs to be put into the storage space 21, the pressing block 212 is controlled to move upwards for a certain distance, the limiting concave strip on the lower surface of the drug storage box is aligned with the limiting convex strip 211 (here, the limiting concave strip on the lower surface of the drug storage box needs to extend along the extending direction until penetrating through two side surfaces of the drug storage box), then the inward pushing is performed, and then the pressing block 212 is controlled to move downwards to press the upper surface of the drug storage box.

Here, as shown in fig. 2A, the front outer side of the car 2 is entirely removed, thereby forming the opening (i.e., the opening extends from the bottom surface to the top surface of the storage space 21, and from the left edge to the right edge), and it is understood that medicines and medicine cartridges can be stored or taken out into the storage space 21 through the opening.

Here, as shown in fig. 2A to 2D, in the storage space 21, the number of the limit ribs 211 and the number of the pressing pieces 212 are three, the limit ribs 211 extend in a direction perpendicular to the outer edge of the opening, and in the left-right direction, the three limit ribs 211 are uniformly distributed, and the three pressing pieces 212 are also uniformly distributed. As shown in fig. 2B, two horizontal rods (which are arranged in tandem) extending in the left-right direction are disposed on the left and right outer side surfaces of each pressing block 212, and the second roller 213 is sleeved on each horizontal rod and can rotate around the horizontal rod.

Alternatively, the second driving device can independently control the N pressing blocks 212, and it is understood that in practice, heights of the medicine storage boxes may be different, so that when the medicine storage boxes with different heights are placed in the storage space 21, the corresponding pressing blocks 212 can be respectively controlled to move downwards until the second roller 213 abuts against the upper surfaces of the medicine storage boxes.

In this embodiment, as shown in fig. 1A, the number of the cars 2 is two, and the first driving device 3 is disposed at the top ends of the plurality of columns 1; the first drive device 3 includes: a first synchronous belt 31 and a motor 32 for driving the first synchronous belt 31 to rotate, wherein two ends of the first synchronous belt 31 are respectively fixedly connected with different cars 2. Here, when the drug delivery device is used for transporting drug storage cartridges, if the drug storage is at a high level, it can be understood that the transportation work can be divided into two tasks: (1) the medicine storage box filled with the medicines is conveyed to a high level through the lift car 2; (2) the empty magazine of the upper floor is transported to the floor by the car 2. When the motor 32 is transferred, one cage 2 ascends and the other cage 2 descends, so that the two cages 2 can respectively perform the two tasks at the same time.

As shown in fig. 1A, a synchronous pulley is sleeved on a rotor of the motor 32, a plurality of third rollers 33 are disposed on both left and right sides of the motor 32, a wheel surface of the third roller 33 abuts against a lower surface of the first synchronous belt 31, a wheel surface of the synchronous pulley abuts against an upper surface of the first synchronous belt 31, and a highest point of the wheel surface of the third pulley 33 is higher than a lowest point of the wheel surface of the synchronous pulley, so that it can be understood that a friction force between the synchronous pulley and the first synchronous belt 31 can be greatly increased, and a slip can be effectively prevented. As shown in fig. 1A, both ends of the first timing belt 31 are fixedly connected to the upper surfaces of the different cages 2, respectively.

Here, the tread of the synchronous pulley may be uniformly provided with a plurality of pulley teeth, which may greatly improve the friction between the synchronous pulley and the first synchronous belt 31; further, the upper surface of the first timing belt 31 is a tooth surface that fits with the sheave surface of the timing pulley.

In the present embodiment, as shown in fig. 1A and 1B, a fixing device 23 is provided on an upper surface of the car 22; the fixing device 23 comprises: the first side plate of the L-shaped plate 231 is fixedly connected to the upper surface of the car 22, the second side plate is fixedly connected to the fixed plate 232, an end portion of the first synchronous belt 31 is clamped between the second side plate and the fixed plate 232, and a plurality of horizontal racks 2321 are disposed on the surface of the fixed plate 232 facing the second side plate.

Here, as shown in fig. 1B, a plurality of through holes are formed in the first side plate, and correspondingly, corresponding screw holes are also formed in the upper surface of the car 22, so that a screw can be used to pass through the through holes and then be screwed into the screw holes, so that the first side edge can be fixedly connected to the upper surface of the car 22. The horizontal racks 2321 can firmly fix the end of the first timing belt 31 between the second side plate and the fixing plate 232, and optionally, the second side plate and the fixing plate 232 are connected by bolts.

It can be understood that, in the medicine conveying device, a controller is required to be provided, and the controller is used for controlling the first driving device 3 and the door 4 to operate, so that a plurality of sensors can be distributed on the column 1 along the up-down direction, and the sensors can detect the position of the car 2, so that when the controller determines that the car 2 and a certain door 4 are at the same height, when the door 4 needs to be opened (for example, a medicine storage box needs to be put into the car 2 through the door 4, or the medicine storage box needs to be taken out of the car 2), the door 4 can be controlled to be opened. In addition, as shown in fig. 1A, the motor 32 can control the up-and-down movement of the two cars 2, so that the vertical position of one car 2 can be determined by knowing the vertical position of the other car 2, or the initial position of each car 2 can be input to the controller when the medicine conveying device is installed, and the controller can calculate the position of the car 2 in real time according to the diameter, the rotation speed, the direction, and the like of the synchronous pulley on the first driving device 3. .

In this embodiment, the door body 4 further includes: a frame 43, the upper and lower risers being movable up and down along the frame 43; an upper pulley 441 is rotatably connected to the upper end of the frame 43, a lower pulley 442 is rotatably connected to the lower end of the frame, a second timing belt 443 is wound between the upper and lower pulleys, the upper pulley 441, the lower pulley 442 and the second timing belt 443 rotate synchronously, a first belt portion 4431 of the second timing belt 443 is fixedly connected to the upper vertical plate 41, a second belt portion 4432 of the second timing belt 443 is fixedly connected to the lower vertical plate 42, and the first belt portion and the second belt portion are respectively suspended on two sides of the upper pulley 441; the third driving device is used for driving the upper pulley 441 and/or the lower pulley 442 to rotate.

Here, the first and second belt parts are located on both sides of the upper pulley 441, and thus, when the upper pulley 441 rotates, the first and second belt parts move in opposite directions, thereby moving the upper and lower risers toward and away from each other.

Here, as shown in fig. 3A, the frame is a square frame 43 composed of two vertical rods and two horizontal rods, the inner sides of the two vertical rods adjacent to each other are provided with grooves extending in the up-down direction, both sides of the upper and lower vertical plates are clamped into the corresponding grooves, and both sides of the frame are provided with an upper pulley 441, a lower pulley 442 and a second synchronous belt 443, and at both sides of the frame, a first belt portion 4431 of the second synchronous belt 443 is fixedly connected to the upper vertical plate 41, and a second belt portion 4432 is fixedly connected to the lower vertical plate 42; it can be understood that when the second timing belt 443 rotates, a force is applied to both sides of the upper and lower risers, so that the upper and lower risers slide more smoothly. As shown in fig. 3A, a transmission rod is disposed between the two lower pulleys 442, and both ends of the transmission rod are respectively sleeved in the two lower pulleys 442 and are coaxial with each other, it can be understood that the third driving device can drive the transmission rod to rotate, so as to drive the two lower pulleys 442 to rotate synchronously.

Here, as shown in fig. 3C, a connecting piece is provided between the first band 4431 and the upper riser 41, the connecting piece being fixedly connected to the first band 4431 at one end and to the upper riser 41 at the other end, and alternatively, the number of connecting pieces between the first band 4431 and the upper riser 41 may be plural. As shown in fig. 3D, a connecting piece is provided between the second strap portion 4432 and the lower riser 42, and the connecting piece is fixedly connected to the second strap portion 4432 at one end and to the lower riser 42 at the other end, and optionally, the number of the connecting pieces between the second strap portion 4432 and the lower riser 42 may be plural.

Optionally, the surfaces of the upper pulley 441 and the lower pulley 442 are uniformly provided with a plurality of pulley teeth, so that slipping between the upper pulley and the second synchronous belt 443 and slipping between the lower pulley and the upper pulley can be effectively prevented.

The second embodiment of the invention provides a pharmacy which comprises the medicine delivery device in the first embodiment.

It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can also be combined appropriately to form other embodiments understood by those skilled in the art.

The above-listed detailed description is only a specific description of a possible embodiment of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the scope of the present invention.

Claims

1. A drug delivery device, comprising:

a plurality of upright posts (1), a car (2) and a first driving device (3);

first drive arrangement (3) can drive car (2) along up-and-down motion is to stand (1), be provided with storage space (21) that are used for depositing the medicine in car (2), the first lateral surface of car (2) is provided with the opening that communicates exterior space and storage space (21).

2. The drug delivery device of claim 1, wherein:

the lift car (2) is square, three outer side surfaces except the first outer side surface are provided with U-shaped parts (22), and each U-shaped part (22) is correspondingly provided with one upright post (1);

the opening direction of the U-shaped part (22) is far away from the car (2), and each upright (1) penetrates through the opening of the corresponding U-shaped part (22).

3. The drug delivery device of claim 2, wherein:

two sides and the bottom edge of the U-shaped part (22) are respectively and rotatably connected with a first roller (221), and the wheel surface of each first roller (221) is abutted against the outer side surface of the corresponding upright post (1) and can roll up and down along the outer side surface.

4. The drug delivery device of claim 1, wherein:

the bottom surface of the storage space (21) is provided with N limiting convex strips (211), the top surface of the storage space is provided with N pressing blocks (212), the N pressing blocks (212) and the N limiting convex strips (211) are arranged in a one-to-one opposite mode, and N is a natural number;

and a second driving device for driving the pressing block (212) to move up and down is arranged in the car (2).

5. The drug delivery device of claim 5, wherein:

in the first outer side, the opening extends from the bottom surface to the top surface of the storage space (21);

in the storage space (21), the limiting convex strip (211) extends inwards along the outer edge of the opening;

the pressing block (212) is rotatably connected with a second roller (213), the lowest point of the wheel surface of the second roller (213) is lower than the lower surface of the pressing block (212), and the extension line of the limiting convex strip (211) is parallel to the rotating plane of the corresponding second roller (213).

6. The drug delivery device of claim 1, wherein:

the number of the cages (2) is two, and the first driving devices (3) are arranged at the top ends of the plurality of upright posts (1);

the first drive device (3) comprises: the elevator car driving device comprises a first synchronous belt (31) and a motor (32) for driving the first synchronous belt (31) to rotate, wherein two ends of the first synchronous belt (31) are respectively and fixedly connected with different car (2).

7. Drug delivery device according to claim 6,

a fixing device (23) is arranged on the upper surface of the car (22);

the fixing device (23) comprises: the elevator car synchronizing belt comprises an L-shaped plate (231) and a fixing plate (232), wherein a first side plate of the L-shaped plate (231) is fixedly connected to the upper surface of the car (22), a second side plate of the L-shaped plate (231) is fixedly connected to the fixing plate (232), one end portion of a first synchronizing belt (31) is clamped between the second side plate and the fixing plate (232), and a plurality of horizontal racks (2321) are arranged on the surface, facing the second side plate, of the fixing plate (232).

8. The drug delivery device of claim 1, wherein:

the door bodies (4) are arranged on the plurality of the stand columns (1), each door body (4) comprises an upper vertical plate (41), a lower vertical plate (42) and a third driving device, the upper vertical plates (41) are positioned right above the lower vertical plates (42), and the third driving devices can control the upper vertical plates and the lower vertical plates to be close to or far away from each other;

when car (2) and door body (4) are in the same height, the opening can just be to door body (4).

9. The drug delivery device of claim 8, wherein:

the door body (4) further comprises: a frame (43) with the upper and lower risers movable up and down along the frame (43);

an upper belt wheel (441) is rotatably connected to the upper end of the frame (43), a lower belt wheel (442) is rotatably connected to the lower end of the frame, a second synchronous belt (443) is wound between the upper belt wheel and the lower belt wheel, the upper belt wheel (441), the lower belt wheel (442) and the second synchronous belt (443) synchronously rotate, a first belt part (4431) in the second synchronous belt (443) is fixedly connected to an upper vertical plate (41), a second belt part (4432) is fixedly connected to a lower vertical plate (42), and the first belt part and the second belt part are respectively suspended on two sides of the upper belt wheel (441);

the third driving device is used for driving the upper belt pulley (441) and/or the lower belt pulley (442) to rotate.

10. A pharmacy comprising a drug delivery device as claimed in any of claims 1 to 9.