A drawer-type injection dispensing mechanism

Abstract

This invention discloses a drawer-type injection dispensing mechanism, comprising: a drawer body with multiple first dispensing ports arranged side-by-side at its bottom end; two drawer guide rails installed inside the dispensing port of an automatic dispensing device and located on opposite sides of the drawer body, the drawer body being slidable along the two drawer guide rails to open or close the drawer body; multiple storage and dispensing small drawers arranged side-by-side within the drawer body, a dispensing conveyor belt and a conveyor belt drive assembly for driving the dispensing conveyor belt to rotate are installed between the side plates of the storage and dispensing small drawers, the outer surface of the dispensing conveyor belt having multiple storage slots for storing injectable drugs evenly arranged circumferentially, a second dispensing port being located at the bottom end of the storage and dispensing small drawer, the end of the dispensing conveyor belt being located above the second dispensing port, the positions of the second dispensing port and the first dispensing port corresponding one-to-one. This invention realizes the storage and automatic dispensing of one or more injectable drugs.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and more specifically to a drawer-type injection dispensing mechanism. Background Technology

[0002] With the rapid advancement of medical technology and the comprehensive promotion of information technology construction, the operation model of hospital pharmacies is undergoing profound changes. Especially in the warehousing and sorting of medicines, the application of intelligent and automated technologies is gradually becoming the mainstream trend. This transformation is not only reflected in technological upgrades but also in the urgent need to improve the efficiency and quality of medical services. As a crucial link in medical services, the speed, accuracy, and efficiency of medication dispensing in hospital pharmacies directly affect patients' medical experience and treatment outcomes. Therefore, how to leverage information technology to improve pharmacy operations has always been a key focus in the medical field. The emergence of automated dispensing machines is a powerful tool for solving this problem. By integrating advanced mechanical, electronic, and computer technologies, automated dispensing machines can achieve rapid and accurate sorting and dispensing of medicines, greatly improving pharmacy efficiency.

[0003] Current automated dispensing machines, such as the one disclosed in authorization announcement number CN108891836B, are mainly designed for the fully automated dispensing of boxed medicines, but cannot handle the dispensing of injectable medicines. This limits their application in hospital pharmacies, because hospital pharmacies often need to handle various forms of medicines, not just boxed medicines. Summary of the Invention

[0004] In order to overcome the problem that existing automatic dispensing machines cannot automatically dispense injectable drugs, this invention provides a drawer-type injectable dispensing mechanism.

[0005] The technical solution of this invention is as follows:

[0006] A drawer-type injection dispensing mechanism, comprising:

[0007] The drawer body has multiple first medicine outlets arranged side by side at the bottom end of the drawer body;

[0008] Two drawer rails are installed inside the dispensing port of the automatic dispensing device and are located on both sides of the drawer body. The drawer body can slide along the two drawer rails to open or close the drawer body.

[0009] Multiple small storage and dispensing drawers are installed side by side inside the drawer body. A dispensing conveyor belt and a conveyor belt drive assembly for driving the dispensing conveyor belt to rotate are installed between the two side plates of the small storage and dispensing drawer. Multiple drug storage slots for storing injectable drugs are evenly arranged circumferentially on the outer surface of the dispensing conveyor belt. A second drug outlet is provided at the bottom end of the small storage and dispensing drawer. The end of the dispensing conveyor belt is located above the second drug outlet. The positions of the second drug outlet and the first drug outlet correspond one-to-one.

[0010] As a preferred embodiment of the present invention, the outer surface of the dispensing conveyor belt is fitted with a medicine storage sponge and is bonded and fixed to the medicine storage sponge, and a plurality of medicine storage grooves are uniformly arranged circumferentially on the outer surface of the medicine storage sponge.

[0011] As a preferred embodiment of the present invention, the medicine storage tank is U-shaped.

[0012] As a preferred embodiment of the present invention, the conveyor belt drive assembly includes a drive motor, a transmission gear, a drive shaft, and a driven shaft. The drive motor is fixed to one side plate of the storage and distribution drawer and located inside the distribution conveyor belt. The drive shaft and the driven shaft are movably installed between the two side plates of the storage and distribution drawer. The drive motor is connected to the drive shaft via the transmission gear. The distribution conveyor belt is sleeved on the drive shaft and the driven shaft.

[0013] As a preferred embodiment of the present invention, a pair of through-beam sensors for counting are provided on the outer side plates of the storage and distribution drawer. A first sensing avoidance opening is provided on the outer side plates of the storage and distribution drawer corresponding to the position of the through-beam sensors. The medicine storage tank located at the bottom of the distribution conveyor belt passes through the detection area of ​​the through-beam sensors in sequence as the distribution conveyor belt rotates.

[0014] As a preferred embodiment of the present invention, a medicine dispensing sensor is provided on one side of the inner end of the drawer body, and a second sensing avoidance opening is provided on both side plates of the storage and distribution drawer corresponding to the position of the medicine dispensing sensor.

[0015] As a preferred embodiment of the present invention, the top opening of the storage and distribution drawer is provided with a drawer cover that can slide back and forth to open or close the storage and distribution drawer.

[0016] As a preferred embodiment of the present invention, the top opening of the storage and distribution drawer is provided with limiting strips on both sides to restrict the front and back sliding of the drawer cover. The top end of the drawer cover is provided with a first latch, and the top end of the storage and distribution drawer is provided with an electromagnetic lock fixing plate. The end of the electromagnetic lock fixing plate is provided with a first electromagnetic lock that cooperates with the first latch at the position of each storage and distribution drawer.

[0017] As a preferred embodiment of the present invention, the top of the first latch is higher than the electromagnetic lock fixing plate, and a pulley is provided on one side of the top of the first latch. The pulley cooperates with a linear slide rail provided at the dispensing port of the automatic dispensing device to limit the back-and-forth sliding of the small drawer cover.

[0018] As a preferred embodiment of the present invention, the front end of the small drawer cover is provided with a pull-out hole.

[0019] As a preferred embodiment of the present invention, a second electromagnetic lock is provided at the end of the side panel of the drawer body. The second electromagnetic lock cooperates with a second latch provided at the dispensing port of the automatic dispensing device to lock the drawer body.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] 1. By setting multiple storage and dispensing drawers in the main body of the drawer, and with the dispensing conveyor belt and conveyor belt drive component set in the storage and dispensing drawers, the storage and automatic dispensing of one or more injectable drugs are realized. This solves the shortcomings of existing automatic dispensing machines in dispensing injectable drugs, expands the application scope of automatic dispensing machines, and enables them to more comprehensively meet the needs of hospital pharmacies.

[0022] 2. By installing multiple small storage and dispensing drawers side by side, the space inside the drawers is effectively utilized, allowing the mechanism to store more medicines within a limited volume, thus saving pharmacy space resources; the overall structure is compact, which is not only easy to install and maintain, but also easy to integrate into automatic dispensing equipment without taking up too much internal space of the equipment.

[0023] 3. By installing a medicine storage sponge with a medicine storage tank on the distribution conveyor belt, the injectable medicines can be effectively protected, reducing collisions and friction during transportation and preventing damage to the medicines or wear on the labels.

[0024] 4. By installing a sliding drawer cover at the top opening of the storage and distribution drawer, the storage and distribution drawer can be opened or closed. When the storage and distribution drawer is closed, it can effectively prevent dust, moisture or other contaminants from entering the drawer and reduce the occurrence of accidental operation to a certain extent, thereby improving the safety of the drawer. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention, 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 some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the drawer-type injection dispensing mechanism in one embodiment of the present invention;

[0027] Figure 2 This is a schematic diagram of the drawer-type injection dispensing mechanism from another perspective in one embodiment of the present invention;

[0028] Figure 3 This is a schematic diagram of the drawer body in one embodiment of the present invention;

[0029] Figure 4 This is a schematic diagram of the storage and distribution drawer in an open state according to an embodiment of the present invention;

[0030] Figure 5 This is a schematic diagram of the storage and distribution drawer in an open state from another perspective, according to one embodiment of the present invention.

[0031] Figure 6 This is a schematic diagram of the interior of a storage and distribution drawer in one embodiment of the present invention;

[0032] Figure 7 This is a schematic diagram of the structure of a small drawer cover in one embodiment of the present invention.

[0033] In the diagram,

[0034] 1. Drawer body; 101. First medicine outlet; 2. Drawer guide rail; 3. Storage and dispensing small drawer; 301. Second medicine outlet; 302. First sensor-guided clearance opening; 303. Second sensor-guided clearance opening; 304. Limiting strip; 4. Dispensing conveyor belt; 5. Conveyor belt drive assembly; 501. Drive motor; 502. Transmission gear; 503. Drive shaft; 504. Driven shaft; 505. Bearing seat; 6. Medicine storage sponge; 601. Medicine storage trough; 7. Through-beam sensor; 8. Sensor bracket; 9. Medicine dispensing sensor; 10. Small drawer cover; 1001. Pull-out hole; 11. First latch; 12. Electromagnetic lock fixing plate; 13. First electromagnetic lock; 14. Pulley; 15. Second electromagnetic lock; 16. Medicine adding indicator light. Detailed Implementation

[0035] To make the technical problems, technical solutions, and beneficial effects of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be noted that similar reference numerals and letters in the following drawings indicate similar items; therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. It is also stated that the embodiments described below are for illustrative purposes only and are not intended to limit the invention.

[0036] It should be noted that the terms "installation," "setting," "connection," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly defined. Indications of orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used in the application's product, or the orientation or positional relationship commonly understood by those skilled in the art, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or component 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 application. The terms "first" and "second" are used only for descriptive purposes and should not be construed as indicating or implying relative importance or implying a number of technical features. "A plurality" means two or more, unless otherwise explicitly defined.

[0037] Please see Figures 1 to 7 This invention provides a drawer-type injection dispensing mechanism, comprising a drawer body 1, two drawer guide rails 2 installed inside the dispensing port of an automatic dispensing device and located on both sides of the drawer body 1, and multiple storage and dispensing small drawers 3 installed side-by-side inside the drawer body 1. The drawer body 1 can slide along the two drawer guide rails 2 to open or close the drawer body 1. Multiple first dispensing ports 101 are arranged side-by-side at the bottom end of the drawer body 1. A dispensing conveyor belt 4 and a conveyor belt drive assembly 5 for driving the dispensing conveyor belt 4 are installed between the two side plates of the storage and dispensing small drawers 3. Multiple storage slots 601 for storing injectable drugs are evenly arranged circumferentially on the outer surface of the dispensing conveyor belt 4. A second dispensing port 301 is provided at the bottom end of the storage and dispensing small drawers 3, and the end of the dispensing conveyor belt 4 is located above the second dispensing port 301. The positions of the second dispensing port 301 and the first dispensing ports 101 correspond one-to-one.

[0038] During medication dispensing, the dispensing drawer is opened, and the dispensing personnel place the injectable medication into the storage slots 601 located above the dispensing conveyor belt 4 inside each of the small storage and dispensing drawers 3. One vial of injectable medication is placed horizontally in each storage slot 601. After dispensing, the drawer body 1 is closed. The dimensions of the storage slots 601 in each small storage and dispensing drawer 3 can be customized according to the size of the injectable medication, allowing a single drawer-type injectable dispensing mechanism to simultaneously dispense multiple injectable medications of different sizes, enhancing the flexibility and applicability of the mechanism.

[0039] When dispensing medication, the conveyor belt drive assembly 5 drives the dispensing conveyor belt 4 to rotate. The injectable medication in the storage tank 601 at the upper end of the dispensing conveyor belt 4 rotates downwards with the dispensing conveyor belt 4 until it falls from the corresponding second dispensing port 301 and the first dispensing port 101 in sequence under the action of gravity onto the dispensing conveyor belt of the automatic dispensing equipment, and is then conveyed to the dispensing port by the dispensing conveyor belt.

[0040] The aforementioned drawer-type injection dispensing mechanism, by setting multiple storage and dispensing drawers 3 within the drawer body 1, and cooperating with the dispensing conveyor belt 4 and conveyor belt drive assembly 5 set within the storage and dispensing drawers 3, realizes the storage and automatic dispensing of one or more injection drugs. This solves the shortcomings of existing automatic dispensing machines in the dispensing of injection drugs, expands the application scope of automatic dispensing machines, and enables them to more comprehensively meet the needs of hospital pharmacies. By installing multiple storage and dispensing drawers 3 side by side, the space within the drawer body 1 is effectively utilized, allowing the mechanism to store more drugs within a limited volume, saving pharmacy space resources. The overall structure is compact, which is not only easy to install and maintain, but also easy to integrate into automatic dispensing equipment without occupying too much internal space.

[0041] Please see Figure 6 In one embodiment, a drug-storage sponge 6 is fitted onto the outer surface of the dispensing conveyor belt 4 and bonded to it. Multiple drug-storage slots 601 are evenly distributed circumferentially on the outer surface of the drug-storage sponge 6. The softness and elasticity of the drug-storage sponge 6 effectively protect the injectable drugs, reducing collisions and friction during transport and preventing damage to the drugs or wear on the labels. The bonding and fixation of the drug-storage sponge 6 to the dispensing conveyor belt 4 ensures the stability of the drug-storage slots 601 during transport, reducing the risk of the injectable drugs slipping or falling out during movement.

[0042] Please see Figure 6In one embodiment, the drug storage tank 601 is U-shaped. The U-shaped design creates a barrier on both sides of the injectable medication, effectively preventing it from falling out during the rotation of the dispensing conveyor belt 4, thus improving dispensing reliability. It also ensures that when the drug storage tank 601 rotates downwards under the influence of gravity, the medication inside can fall smoothly down. Furthermore, the U-shaped design allows for a more compact arrangement on the dispensing conveyor belt 4, accommodating more medication within a limited space and improving space utilization.

[0043] Please see Figure 5 , Figure 6 In one embodiment, the conveyor belt drive assembly 5 includes a drive motor 501, a transmission gear 502, a drive shaft 503, and a driven shaft 504. The drive motor 501 is fixed to one side plate of the storage and distribution drawer 3 and located inside the distribution conveyor belt 4. The drive shaft 503 and the driven shaft 504 are movably mounted between the two side plates of the storage and distribution drawer 3 via bearing seats 505. The drive motor 501 is connected to the drive shaft 503 via the transmission gear 502. The distribution conveyor belt 4 is fitted onto the drive shaft 503 and the driven shaft 504, forming a closed-loop conveying path, enabling the distribution conveyor belt 4 to operate smoothly and continuously. The conveyor belt drive assembly 5 described above has a very compact structure, making full use of the internal space of the storage and distribution drawer 3 to improve space utilization and system integration. In addition, the bearing seats 505 not only adjust the tension of the distribution conveyor belt 4 but also facilitate the disassembly and assembly of the drive shaft 503 and the driven shaft 504.

[0044] Please see Figure 4 , Figure 5 In one embodiment, a pair of through-beam sensors 7 for counting are provided on the outer side panels of the storage and distribution drawer 3. One sensor is a transmitter, and the other is a receiver. First sensing clearance openings 302 are provided on the outer side panels of the storage and distribution drawer 3 corresponding to the positions of the through-beam sensors 7. The first sensing clearance openings 302 allow light emitted from the transmitter to pass through and reach the receiver, ensuring that the through-beam sensors 7 can accurately detect the passage of a medicine storage tank 601 without affecting the normal operation of the distribution conveyor belt 4. As the distribution conveyor belt 4 rotates, the medicine storage tanks 601 located at the bottom of the conveyor belt will sequentially pass through the detection area of ​​the through-beam sensors 7. When a medicine storage tank 601 blocks the light from the transmitter, the through-beam sensor 7 will output a trigger signal, indicating that a medicine storage tank 601 has passed through the detection area. By recording the number and time interval of these trigger signals, the position and number of medicine storage tanks 601 on the distribution conveyor belt 4 can be accurately calculated, thereby achieving precise control of the medicine distribution process.

[0045] Specifically, the through-beam sensor 7 is fixed to the outside of the side panel of the storage and distribution drawer 3 via the sensor bracket 8. Because the through-beam sensor 7 is mounted on the outside of the storage and distribution drawer 3, it is relatively easy to access and maintain. If the sensor needs to be replaced or upgraded, it can be simply disassembled and reinstalled without requiring a large-scale disassembly and reorganization of the entire distribution system. Furthermore, being fixed to the outside of the side panel of the storage and distribution drawer 3 does not occupy the internal space of the drawer, allowing for a more compact structure.

[0046] Please see Figures 3 to 5 In one embodiment, a drug drop sensor 9 is provided on one side of the inner end of the drawer body 1, and a second sensing clearance opening 303 is provided on the side plates of the storage and dispensing drawer 3 corresponding to the position of the drug drop sensor 9. The second sensing clearance opening 303 ensures that the drug drop sensor 9 is not blocked by the side plates of the storage and dispensing drawer 3, and can accurately detect the injectable drugs falling from the inside of each storage and dispensing drawer 3, ensuring the accuracy and timeliness of the dispensing process.

[0047] Please see Figure 1 , Figure 5 , Figure 7 In one embodiment, a sliding drawer cover 10 is provided at the top opening of the storage and distribution drawer 3 to open or close the drawer. The drawer cover 10 effectively prevents dust, moisture, or other contaminants from entering the drawer when it is closed, and to some extent reduces the occurrence of misoperation, improving drawer safety. Because the cover needs to slide to open the drawer, the dispensing personnel will be more careful during operation to avoid incorrect dispensing, spillage, or damage due to negligence. The sliding design of the drawer cover 10 makes opening and closing the drawer easier and faster; the dispensing personnel only need to slide the cover to complete the operation without having to lift or close the entire drawer, thereby improving work efficiency and operational convenience.

[0048] Specifically, the top opening of the storage and distribution drawer 3 is provided with limiting strips 304 on both sides to restrict the back-and-forth sliding of the drawer cover 10, preventing the drawer cover 10 from wobbling left and right when sliding back and forth. A first latch 11 is provided at the top end of the drawer cover 10, and an electromagnetic lock fixing plate 12 is provided at the top end of the storage and distribution drawer 3. At the end of the electromagnetic lock fixing plate 12, corresponding to the position of each storage and distribution drawer 3, a first electromagnetic lock 13 is provided that cooperates with the first latch 11. By controlling the on / off state of the first electromagnetic lock 13, the system can accurately unlock the drawer cover 10 of each storage and distribution drawer 3 during drug dispensing, preventing the dispensing personnel from placing the wrong drug storage tank 601 during dispensing. When the small drawer cover 10 is slid to the closed position, the first latch 11 can cooperate with the corresponding first electromagnetic lock 13 to firmly lock the small drawer cover 10 in the closed state, ensuring that the small drawer cover 10 will not be accidentally opened due to vibration or bumps during the pulling process, and can also effectively prevent unauthorized personnel from accessing the inside of the drawer at will, thus enhancing the security of the drawer.

[0049] In addition, the top of the first latch 11 is higher than the electromagnetic lock fixing plate 12, and a pulley 14 is provided on one side of the top of the first latch 11. The pulley 14 cooperates with the linear slide rail provided at the dispensing port of the automatic dispensing equipment to further restrict the back-and-forth sliding of the small drawer cover 10. By designing the top of the first latch 11 to be higher than the electromagnetic lock fixing plate 12, this design cleverly utilizes spatial position to enhance the stability and accuracy of the back-and-forth sliding of the small drawer cover 10. When the small drawer cover 10 is in the closed state, the first latch 11 not only cooperates with the first electromagnetic lock 13 to lock, but its higher position can also provide a certain support force for the small drawer cover 10 through the cooperation of the pulley 14 and the linear slide rail, reducing friction and resistance during the sliding process, and preventing the end from being suspended in the air during the back-and-forth sliding process, causing it to tilt up or wobble.

[0050] Please see Figure 7 In one embodiment, a pull-out hole 1001 is provided at the front end of the small drawer cover 10. The pull-out hole 1001 provides the dispensing personnel with an intuitive and easy-to-operate handle position. The dispensing personnel can easily slide the small drawer cover 10 back and forth through the pull-out hole 1001 to open or close the storage and dispensing small drawer 3 without having to find other hard-to-identify operating points.

[0051] In one embodiment, the small drawer cover 10 is made of a transparent material. The transparent small drawer cover 10 allows the user to directly observe the quantity, status, or presence of any abnormalities of the injectable drugs inside the storage and dispensing small drawer 3 without opening the small drawer cover 10, thus avoiding the need to frequently open the small drawer cover 10.

[0052] Please see Figure 1 , Figure 2 In one embodiment, a second electromagnetic lock 15 is provided at the end of the side panel of the drawer body 1. The second electromagnetic lock 15 cooperates with a second latch provided at the dispensing port of the automatic dispensing device to lock the drawer body 1. The second electromagnetic lock 15 can effectively prevent unauthorized personnel from accessing the interior of the drawer, enhancing the security of the drawer and helping to enhance the stability of the drawer body 1 in the automatic dispensing device. When the drawer body 1 is locked, the magnetic force generated by the second electromagnetic lock 15 can ensure that the drawer body 1 will not accidentally slide out or loosen during the movement or vibration of the dispensing conveyor belt 4, thereby ensuring the normal operation of the equipment and the safe dispensing of medicines.

[0053] Please see Figure 1 In one embodiment, a dosing indicator light 16 is provided at the front end of the drawer body 1 corresponding to the position of each storage and distribution drawer 3. The dosing indicator light 16 can intuitively display the dosing status of each storage and distribution drawer 3. When a storage and distribution drawer 3 needs to be dosed, the corresponding indicator light will light up to remind the staff to do so in time.

[0054] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

[0055] The present invention has been described above with reference to the accompanying drawings. Obviously, the implementation of the present invention is not limited to the above-described manner. Any improvements made using the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A drawer-type injection dispensing mechanism, characterized in that, include: The drawer body has multiple first medicine outlets arranged side by side at the bottom end of the drawer body; Two drawer rails are installed inside the dispensing port of the automatic dispensing device and are located on both sides of the drawer body. The drawer body can slide along the two drawer rails to open or close the drawer body. Multiple small storage and dispensing drawers are installed side by side in the drawer body. A dispensing conveyor belt and a conveyor belt drive assembly for driving the dispensing conveyor belt to rotate are installed between the two side plates of the small storage and dispensing drawer. Multiple drug storage slots for storing injectable drugs are evenly arranged circumferentially on the outer surface of the dispensing conveyor belt. A second drug outlet is provided at the bottom end of the small storage and dispensing drawer. The end of the dispensing conveyor belt is located above the second drug outlet. The positions of the second drug outlet and the first drug outlet correspond one-to-one. The outer surface of the distribution conveyor belt is fitted with a medicine storage sponge and is bonded and fixed to the medicine storage sponge. Multiple medicine storage slots are evenly arranged on the outer surface of the medicine storage sponge in the circumferential direction. The medicine storage tank is U-shaped; The conveyor belt drive assembly includes a drive motor, a transmission gear, a drive shaft, and a driven shaft. The drive motor is fixed to one side plate of the storage and distribution drawer and located inside the distribution conveyor belt. The drive shaft and the driven shaft are movably installed between the two side plates of the storage and distribution drawer. The drive motor is connected to the drive shaft via the transmission gear. The distribution conveyor belt is sleeved on the drive shaft and the driven shaft. A pair of through-beam sensors for counting are provided on the outer side plates of the storage and distribution drawer. A first sensing clearance opening is provided on the outer side plates of the storage and distribution drawer corresponding to the position of the through-beam sensors. The medicine storage tank located at the bottom of the distribution conveyor belt passes through the detection area of ​​the through-beam sensors in sequence as the distribution conveyor belt rotates. The top opening of the storage and distribution drawer is provided with a drawer cover that can slide back and forth to open or close the storage and distribution drawer; The top opening of the storage and distribution drawer is provided with limiting strips on both sides to restrict the front and back sliding of the drawer cover. The top end of the drawer cover is provided with a first latch. The top end of the storage and distribution drawer is provided with an electromagnetic lock fixing plate. The end of the electromagnetic lock fixing plate is provided with a first electromagnetic lock that cooperates with the first latch at the position of each storage and distribution drawer.

2. The drawer-type injection dispensing mechanism according to claim 1, characterized in that, A medicine dispensing sensor is provided on one side of the inner end of the drawer body, and a second sensing avoidance opening is provided on both side panels of the storage and distribution drawer corresponding to the position of the medicine dispensing sensor.

3. The drawer-type injection dispensing mechanism according to claim 1, characterized in that, The top of the first latch is higher than the electromagnetic lock fixing plate, and a pulley is provided on one side of the top of the first latch. The pulley cooperates with a linear slide rail provided at the dispensing port of the automatic dispensing equipment to limit the back-and-forth sliding of the small drawer cover.

4. The drawer-type injection dispensing mechanism according to claim 1, characterized in that, The front end of the small drawer cover is provided with a pull-out hole.

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