Dispensing device

Abstract

The utility model provides a medicine dispensing device which comprises a shell, a driving mechanism, a driving gear connecting rod, a driven gear connecting rod and a baffle. The shell is divided into a first containing cavity and a second containing cavity from front to back, the driving mechanism is fixed in the second containing cavity, and an output shaft of the driving mechanism is connected to the rear end of the driving gear connecting rod; the front end of the driving gear connecting rod is rotationally connected with the rear end of the baffle; a first roller is arranged at the top end of the baffle; the driven gear connecting rod is meshed with the driving gear connecting rod; a second roller is arranged at the front end of the driven gear connecting rod; when the driving mechanism drives the driving gear connecting rod to stretch out and draw back, the driven gear connecting rod rotates under the meshing effect of the driving gear connecting rod, the second pin roller stretches out or retracts back to the first opening, and the baffle drives the first pin roller to ascend and descend at the first opening through stretching out and drawing back of the driving gear connecting rod. By the adoption of the idler wheels, the friction coefficient is reduced, medicine dispensing blockage is avoided, and it is guaranteed that the medicine box slides down smoothly.

Description

Technical Field

[0001] The utility model belongs to the technical field of automatic medicine dispensing, and particularly relates to a medicine dispensing device. Background Art

[0002] Automated dispensing equipment can greatly reduce the occurrence of dispensing errors, reduce the workload of pharmacists, and improve the work efficiency and service level of the hospital. Currently, most hospital pharmacies use automated equipment for dispensing medicines.

[0003] Existing dispensing devices for dispensing units at the end of a dispensing bin either utilize a fixed baffle or pulley at the end of the storage bin to block the medicine box, allowing the box to be lifted or popped up for dispensing; or utilize a telescopic baffle, which is raised and lowered to block the medicine box; or utilize a rotating baffle, which is pulled up and down by a lever to rotate the baffle. However, these dispensing methods often have the following problems: the medicine box can easily get stuck in the opening reserved for the baffle to rise and fall. Furthermore, when the medicine box falls, it experiences significant sliding friction with the inclined surface, resulting in a long dispensing response time and a tendency for it to jam. Therefore, improvements are needed. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the present invention proposes a medicine dispensing device that adopts a roller method to reduce the friction coefficient, avoid drug dispensing jams, and ensure that the medicine box slides down smoothly.

[0005] The technical solution of the present utility model is achieved as follows:

[0006] A medicine dispensing device comprises: a housing, a driving mechanism, a driving gear connecting rod, a driven gear connecting rod and a baffle; the housing is divided into two first accommodating chambers and a second accommodating chamber from front to back, the driving mechanism is fixed in the second accommodating chamber, and the output shaft of the driving mechanism is connected to the rear end of the driving gear connecting rod; the front end of the driving gear connecting rod is rotatably connected to the rear end of the baffle, and the top end of the baffle is provided with a first roller; the driven gear connecting rod is meshed and connected to the driving gear connecting rod, and the front end of the driven gear connecting rod is provided with a second roller; a first opening is provided in the first accommodating chamber, and when the driving mechanism drives the driving gear connecting rod to extend and retract, the driven gear connecting rod rotates under the meshing action of the driving gear connecting rod, the second roller extends / retracts into / from the first opening, and the baffle is driven by the extension and retraction of the driving gear connecting rod to drive the first roller to rise and fall at the first opening.

[0007] In a preferred embodiment, the driving gear connecting rod is Z-shaped, and a tooth block is provided at the bend to engage with the driven gear connecting rod.

[0008] In a preferred embodiment, the driving mechanism includes an electromagnet and a connecting rod, and the connecting rod is connected to the driving gear connecting rod; when the electromagnet drives the connecting rod to extend or retract, the connecting rod pushes the driving gear connecting rod to extend or retract.

[0009] In a preferred embodiment, a hook-shaped connecting piece is provided between the connecting rod and the driving gear connecting rod, and the connecting piece is cooperatively connected with the connecting rod and the driving gear connecting rod.

[0010] In a preferred embodiment, the housing is further provided with guide rails on the left and right sides of the baffle, and the baffle is raised and lowered along the guide rails.

[0011] In a preferred embodiment, the inclination angle of the guide rail ranges from 80° to 90°.

[0012] In a preferred embodiment, the shell is provided with a plurality of limiting openings for placing the driving gear connecting rod and the driven gear connecting rod on both sides of the first accommodating cavity, and the driving gear connecting rod and the driven gear connecting rod rotate in the shell through the limiting openings.

[0013] In a preferred embodiment, it also includes a counter located at the front end of the baffle.

[0014] In a preferred embodiment, the housing is provided with a second opening located at the front end of the baffle, and the counter is provided below the second opening.

[0015] Compared with the prior art, the utility model has the following advantages:

[0016] The utility model divides the shell into a first accommodating cavity and a second accommodating cavity. The first accommodating cavity is arranged at the medicine dispensing end, and the second accommodating cavity is hidden in the medicine storage box and is provided with a driving mechanism, which can do horizontal telescopic movement. A first opening is provided above the first accommodating cavity at the medicine dispensing end.

[0017] When dispensing medicine stops, one end of the drive mechanism is connected to a driving gear connecting rod, the other end of which is connected to a baffle. A first roller is positioned at the top of the baffle. When the drive mechanism extends, it drives the driving gear connecting rod forward, further causing the baffle to rise and block the medicine box. When dispensing medicine begins, the drive mechanism retracts the driving gear connecting rod, which in turn drives the baffle down and retracts into the first opening. At this point, the first roller is positioned at and slightly above the first opening. The driven gear connecting rod rotates due to the meshing effect, driving the second roller to rise at and slightly above the first opening. As the second roller rises, it propels the medicine box, disrupting its static state and preventing it from remaining stationary due to sliding friction after the baffle descends. Compared to existing dispensing methods in which the medicine box slides down a slope, the present invention effectively reduces the possibility of medicine getting stuck during dispensing. Furthermore, the first roller positioned at the top of the baffle prevents the medicine box from colliding as it passes the leading edge of the first opening, which could cause dispensing to be disrupted. The medicine box slides along the first roller and the second roller, converting sliding friction into rolling friction, reducing friction and making the medicine dispensing smooth. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0019] Figure 1 This is a schematic diagram of the connection between some structures in the medicine dispensing device of the present invention;

[0020] Figure 2 This is a schematic diagram of the medicine blocking state in the medicine dispensing device of the present invention;

[0021] Figure 3 This is a schematic diagram of the medicine dispensing state of the medicine dispensing device of the present invention;

[0022] Figure 4 This is a schematic diagram of the connection between some structures in the medicine dispensing device of the present invention;

[0023] Figure 5 Schematic diagram of the outer shell of the medicine dispensing device of the present invention;

[0024] Figure 6 This is a schematic diagram of the driving gear connecting rod in the medicine dispensing device of the present invention.

[0025] Figure ID:

[0026] 1-housing; 11-first accommodating cavity; 11a-first opening; 11b-second opening;

[0027] 12-second accommodating cavity; 13-moving groove; 14-limiting opening;

[0028] 2-driving mechanism; 21-electromagnet; 22-connecting rod; 221-connecting piece;

[0029] 3- driving gear connecting rod;

[0030] 4-driven gear connecting rod; 41-second roller;

[0031] 5- baffle; 51- first roller;

[0032] 6-Counter. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," "third," and "fourth," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0035] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0036] See also Figures 1 to 6The present invention discloses a medicine dispensing device, comprising a housing 1, a drive mechanism 2, a driving gear link 3, a driven gear link 4, and a baffle 5. The housing 1 is divided from front to back into a first accommodating chamber 11 and a second accommodating chamber 12. The drive mechanism 2 is fixed within the second accommodating chamber 12, and the output shaft of the drive mechanism 2 is connected to the rear end of the driving gear link 3. The front end of the driving gear link 3 is rotatably connected to the rear end of the baffle 5, and a first roller 51 is provided at the top end of the baffle 5. The driven gear link 4 is meshed with the driving gear link 3, and a second roller 41 is provided at the front end of the driven gear link 4. A first opening 11a is provided in the first accommodating chamber 11. When the drive mechanism 2 drives the driving gear link 3 to extend or retract, the driven gear link 4 rotates under the meshing action of the driving gear link 3, and the second roller 41 extends or retracts into the first opening 11a. The baffle 5 is moved up and down at the first opening 11a by the extension and retraction of the driving gear link 3.

[0037] Specifically, the medicine dispensing device of the present invention is located at the front end of the medicine storage bin and is arranged at a certain inclination angle to the horizontal plane. The medicine storage bin has an inclined slope, and the height of the medicine dispensing opening is lower than the end of the medicine storage bin. Figure 3 As shown, the cylindrical surfaces of the first roller 41 and the second roller 51 are flush, and are both located at the first opening 11a in the medicine dispensing state and slightly extend out of the first opening 11a. When the medicine box slides down, the first roller 41 and the second roller 51 are ejected from the medicine storage compartment.

[0038] When the medicine dispensing device changes to the medicine blocking state, the driving mechanism 2 extends forward, pushing the driving gear connecting rod 3 to extend forward. Under the influence of the extension of the driving gear connecting rod 3, the baffle 5 rises and pushes out of the first opening 11a, blocking the medicine box; at the same time, the driven gear connecting rod 4 rotates counterclockwise under the meshing action of the driving gear connecting rod 3, causing the second roller 41 to retract into the first opening 11a, thereby achieving the medicine blocking state.

[0039] When the medicine dispensing device returns to the medicine dispensing state, the driving mechanism 2 retracts, driving the driving gear connecting rod 3 to retract. Under the influence of the retraction of the driving gear connecting rod 3, the baffle 5 drops and retracts into the first opening 11a, no longer blocking the medicine box. At this time, the first roller 51 is located at the first opening 11a and the cylindrical surface is slightly higher than the first opening 11a. At the same time, the driven gear connecting rod 4 rotates clockwise under the meshing action of the driving gear connecting rod 3, causing the second roller 41 to slightly extend out of the first opening 11a, thereby achieving the medicine dispensing state. Specifically, when the second roller 41 slightly extends out of the first opening 11a, it will slightly lift the medicine box originally placed on the first opening 11a, thereby disrupting the original static state of the medicine box. At the same time, under the influence of the second roller 41, the medicine box slides forward and passes through the first roller 51, and is finally discharged from the medicine storage bin.

[0040] Furthermore, when in a stationary state, the medicine boxes are sequentially arranged in the medicine storage bin, with the frontmost medicine box abutting the baffle 5 and its bottom contacting the first opening 11a. Furthermore, the second roller 41 slightly pushes upward and extends slightly beyond the first opening 11a during medication dispensing, effectively disrupting the static state of the medicine boxes and preventing the medicine boxes from remaining stationary due to sliding friction after the baffle 5 descends. Compared to existing medication dispensing methods in which medicine boxes slide down a slope, the present invention utilizes rollers at the contact surface between the medicine boxes and the device, converting sliding friction into rolling friction, reducing the friction coefficient, and effectively reducing the possibility of medication jamming during dispensing.

[0041] Furthermore, when the baffle 5 descends and retracts into the first opening 11a, the reserved space at the first opening 11a for the baffle 5 to ascend and descend could potentially get stuck on the front bottom of the medicine box, causing medication delivery to stall. The present invention provides a first roller 51 at the top of the baffle 5. When the baffle 5 descends, the first roller 51 is positioned at and slightly above the first opening 11a, preventing the medicine box from getting stuck when passing through the reserved space, thereby facilitating a smoother medication delivery process.

[0042] Preferably, the drive mechanism 2 includes an electromagnet 21 and a connecting rod 22. The connecting rod 22 is connected to the driving gear connecting rod 3. When the electromagnet drives the connecting rod 22 to extend or retract, the connecting rod 22 pushes the driving gear connecting rod 3 to extend or retract. Specifically, the electromagnet 21 controls the telescopic movement of the connecting rod 22, thereby precisely pushing the driving gear connecting rod 3 to extend or retract. The strength of its magnetic force can be adjusted by varying the current, and the magnetic field can be rapidly generated or dissipated at the moment of power on and off. The electromagnet 21 is suitable for use in medication dispensing scenarios requiring a fast response.

[0043] In addition, a hook-shaped connector 221 is provided between the connecting rod 22 and the driving gear connecting rod 3, and the connector 221 cooperates with the connecting rod 22 and the driving gear connecting rod 3 to connect. Specifically, since the driving mechanism 2 is highly worn and needs to be replaced, the connector 221 indirectly connects the connecting rod 22 and the driving gear connecting rod 3, making it easier to disassemble and replace parts.

[0044] In this embodiment, the housing 1 is further provided with guide rails 13 on the left and right sides of the baffle 5. The baffle 5 is raised and lowered along the guide rails 13, providing guidance for the lifting of the baffle 5 and ensuring that the baffle 5 is stable and does not deviate during the lifting process.

[0045] Preferably, the inclination angle of the guide rail 13 ranges from 80° to 90°.

[0046] like Figure 1 and Figure 6As shown, in this embodiment, the housing 1 is provided with a plurality of limiting openings 14 for placing the driving gear connecting rod 3 and the driven gear connecting rod 4 on both sides of the first accommodating cavity 11. The driving gear connecting rod 3 and the driven gear connecting rod 4 rotate in the housing 1 through the limiting openings 14. Specifically, taking the medicine blocking as an example, combined with Figure 1 、 6 At points A, B, C, and D in the diagram, the driving mechanism 2 extends and retracts to push point C. Since point A is fixed to the limit opening 14, the driving gear connecting rod 3 rotates clockwise around point A, and point D moves obliquely upward to cause the baffle 5 to rise and fall along the guide rail 13; while point B engages with point A, the driven gear connecting rod 4 rotates counterclockwise due to the engagement, and the second roller 41 retracts to the first opening 11a.

[0047] Further, such as Figure 6 As shown, the driving gear connecting rod 3 is Z-shaped, with a tooth block at the bend (point A) meshing with the driven gear connecting rod 4. Specifically, the Z-shaped driving gear connecting rod 3 effectively converts linear motion into rotational motion. Because the drive mechanism 2 applies a horizontal force at point C, point A is fixed to the stop opening 14 for rotational connection. When the drive mechanism 2 is extended or retracted, point C is pushed, causing the driving gear connecting rod 3 to rotate about point A, raising point D. In other words, the retracting motion of the drive mechanism 2 is converted into vertical lifting motion of the baffle 5. The Z-shaped structure is also more compact and space-saving.

[0048] like Figure 2 As shown, the medicine dispensing device of the present invention also includes a counter 6 located at the front end of the baffle 5. The counter is electrically connected to the main control board. Furthermore, the housing 1 has a second opening 11b located at the front end of the baffle 5, and the counter 6 is located below the second opening 11b. The counter 6 uses infrared sensing technology to identify the passage of medicine boxes and feeds the main control board with information to calculate the number of medicine boxes, ensuring accurate dispensing.

[0049] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A medicine dispensing device, applied to a medicine storage bin, arranged at a certain inclination angle to the horizontal plane, characterized in that: include: A housing (1), a driving mechanism (2), a driving gear connecting rod (3), a driven gear connecting rod (4) and a baffle (5); The housing (1) is divided into two accommodating chambers (11) and a second accommodating chamber (12) from front to back. The driving mechanism (2) is fixed in the second accommodating chamber (12), and the output shaft of the driving mechanism is connected to the rear end of the driving gear connecting rod (3). The front end of the driving gear connecting rod (3) is rotatably connected to the rear end of the baffle (5), and the top end of the baffle (5) is provided with a first roller (51). The driven gear connecting rod (4) is meshedly connected with the driving gear connecting rod (3), and a second roller (41) is provided at the front end of the driven gear connecting rod (4); The first accommodating chamber (11) is provided with a first opening (11a). When the driving mechanism (2) drives the driving gear connecting rod (3) to extend and retract, the driven gear connecting rod (4) rotates under the meshing action of the driving gear connecting rod (3), the second roller (41) extends / retracts into the first opening (11a), and the baffle (5) is driven by the extension and retraction of the driving gear connecting rod (3) to drive the first roller (51) to rise and fall at the first opening (11a).

2. A medicine dispensing device according to claim 1, characterized in that: The driving gear connecting rod (3) is in a Z shape, and a tooth block is provided at the bending portion to mesh with the driven gear connecting rod (4).

3. A medicine dispensing device according to claim 1, characterized in that: The driving mechanism (2) comprises an electromagnet (21) and a connecting rod (22), wherein the connecting rod (22) is connected to the driving gear connecting rod (3); when the electromagnet drives the connecting rod (22) to extend or retract, the connecting rod (22) pushes the driving gear connecting rod (3) to extend or retract.

4. A medicine dispensing device according to claim 3, characterized in that: A hook-shaped connecting piece (221) is provided between the connecting rod (22) and the driving gear connecting rod (3), and the connecting piece (221) is cooperatively connected with the connecting rod (22) and the driving gear connecting rod (3).

5. A medicine dispensing device according to claim 1, characterized in that: The housing (1) is further provided with guide rails (13) on the left and right sides of the baffle (5), and the baffle (5) rises and falls along the guide rails (13).

6. A medicine dispensing device according to claim 5, characterized in that: The inclination angle of the guide rail (13) ranges from 80° to 90°.

7. A medicine dispensing device according to claim 1, characterized in that: The housing (1) is provided with a plurality of limiting openings (14) on both sides of the first accommodating cavity (11) for placing the driving gear connecting rod (3) and the driven gear connecting rod (4), and the driving gear connecting rod (3) and the driven gear connecting rod (4) rotate in the housing (1) through the limiting openings (14).

8. The medicine dispensing device according to claim 1, characterized in that: The utility model also comprises a counter (6) arranged at the front end of the baffle (5).

9. A medicine dispensing device according to claim 8, characterized in that: The housing (1) is provided with a second opening (11b) located at the front end of the baffle (5), and the counter (6) is provided below the second opening (11b).

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