A refrigeration device with a hierarchical door opening

Abstract

The present invention discloses a refrigeration device with a hierarchical door opening structure, which comprises: a main body structure, the main body structure includes a frame, a heat preservation box, a medicine storage bin rack and a refrigeration fan, the heat preservation box is fixed inside the frame; the medicine storage bin rack is used for placing medicine storage boxes; the refrigeration fan is fixed inside the heat preservation box; a power mechanism, the power mechanism includes a servo motor, a reducer, a transmission shaft and a synchronous belt assembly, the servo motor drives the transmission shaft, and the transmission shaft drives the synchronous belt assembly; a hierarchical door opening mechanism, the hierarchical door opening mechanism includes a plurality of hierarchical doors, guide rails, sliders and a DC motor assembly, the plurality of hierarchical doors are slidably connected to the frame, and the guide rails are fixed on both sides of the frame; the DC motor assembly includes a machine base, a DC motor, a gear and a gear rod, the machine base is respectively fixedly connected to the slider on the guide rail and the synchronous belt, and the output shaft of the DC motor is in transmission connection with the gear; one end of the gear rod can abut against a convex block on the hierarchical door; the control system is electrically connected to the refrigeration fan, the servo motor and the DC motor respectively.

Description

Technical Field

[0001] The present invention relates to a refrigeration device for dispensing drugs in a hospital outpatient or inpatient pharmacy, and particularly to a refrigeration device with a hierarchical door opening structure. Background Art

[0002] At present, automated pharmacies have been gradually used in large and medium-sized hospitals at home and abroad, which have the advantages of a large variety of drugs, convenient drug storage, and high work efficiency of medical staff. However, with the increase in the types of drugs, the requirements for the storage and cooling of special drugs are also getting higher and higher; especially when there are significant differences in the storage temperatures of multiple drugs, they cannot be stored in the same dispensing device simultaneously.

[0003] Moreover, in the process of opening the door of most current drug refrigerators to take or store drugs, due to the overly large opening, a large amount of cold air inside the refrigerator escapes, causing the temperature inside the refrigerator to rise. Repeating this process multiple times will affect the storage effect of drugs.

[0004] Therefore, how to provide a refrigeration device with a hierarchical door opening structure for storing drugs is an urgent problem to be solved by those skilled in the art. Summary of the Invention

[0005] In view of this, the present invention provides a refrigeration device with a hierarchical door opening structure. By opening a specific layer of the door, it is not necessary to open the entire insulation box door, which can effectively reduce the large loss of cold air and ensure the refrigeration effect of drugs.

[0006] To achieve the above object, the present invention adopts the following technical solution: A refrigeration device with a hierarchical door opening structure, which includes:

[0007] A main body structure, the main body structure includes a frame, an insulation box, a medicine storage rack, and a refrigeration fan. One side of the insulation box is open, and the insulation box is fixed inside the frame; the medicine storage rack is fixed inside the insulation box, and the medicine storage rack is used for placing medicine storage boxes; the refrigeration fan is fixed on the inner side wall of the insulation box;

[0008] A power mechanism, the power mechanism includes a servo motor, a reducer, a transmission shaft, and a synchronous belt assembly. The servo motor is fixed in the middle of the top of the frame, the output shaft of the servo motor is in transmission connection with the input shaft of the reducer, the transmission shafts are horizontally rotatably connected in pairs at the top of the frame, one end of the transmission shaft is in transmission connection with the output shaft of the reducer, and the synchronous belt assembly rotates on the two side edges of the frame and is in transmission connection with the other end of the transmission shaft;

[0009] Laminated door opening mechanism, the laminated door opening mechanism includes a plurality of laminated doors, guide rails, sliders and DC motor assemblies. The plurality of laminated doors are slidably connected to the frame corresponding to the open side of the insulation box up and down. The guide rails are fixed on both sides of the frame and correspond to the transmission direction of the synchronous belt. The slider is slidably connected to the guide rail. The DC motor assembly includes a base, a DC motor, a gear and a gear rod. The base is fixedly connected to the slider and the synchronous belt respectively. The DC motor is fixed on the base. The gear and the gear rod are both rotatably connected to the base. The gear is in meshing transmission with the gear rod. The output shaft of the DC motor is in transmission connection with the gear. A convex block is fixed on the laminated door. One end of the gear rod can abut against the convex block to push open the laminated door under the drive of the synchronous belt.

[0010] Control system, the control system is electrically connected to the refrigeration fan, the servo motor and the DC motor respectively.

[0011] The beneficial effects of the present invention are: effectively reducing the loss of cold air when opening the box door to take medicine. When the door needs to be opened, the control system controls the servo motor to drive the synchronous belt to move. The synchronous belt can drive the DC motor assembly to move to the position of the laminated door that needs to be opened. At this time, the control system controls the DC motor to drive the gear to rotate. The gear can drive the gear rod to rotate, so that one end of the gear rod contacts the convex block on the laminated door. At this time, the gear rod should be in a horizontal state to support the convex block. The control system controls the servo motor to drive the synchronous belt to move. The synchronous belt drives the DC motor assembly to move upward. That is to say, the synchronous belt drives the gear rod to lift and lower at this time, realizing the door opening action. After taking the medicine, when the door needs to be closed, the control system controls the servo motor to drive the synchronous belt to move. The synchronous belt drives the DC motor assembly to move downward. That is to say, the opened laminated door drops, making the laminated door contact the next laminated door. At this time, the control system controls the DC motor to drive the gear to rotate. The gear drives the gear rod to rotate, separating the gear rod from the convex block of the laminated door, realizing the door closing action. After completing an opening and closing process, under the action of the control system, the requirement of quickly and positioning opening the laminated door can be realized, improving the efficiency of taking medicine, reducing the leakage of cold air in the storage space, and improving the storage effect.

[0012] Preferably, a laminated door receiving plate is fixed to the bottom of the frame corresponding to the open side of the insulation box. The laminated door receiving plate abuts against the bottom laminated door.

[0013] Preferably, wheel rails are respectively fixed to both sides of the frame. Both ends of one side of the plurality of laminated doors are rotatably connected with grooved wheels. The grooved wheels are slidably connected to the wheel rails. The axial direction of the wheel rails is parallel to the axial direction of the guide rails.

[0014] Preferably, a seat plate is fixed to the bottom of the reducer. The seat plate is fixedly connected to the frame.

[0015] Preferably, the synchronous belt assembly includes a first pulley mounting block, a first pulley, a second pulley mounting block, a second pulley and a synchronous belt. The first pulley mounting block is fixed to the top edge of the frame. The first pulley is rotatably connected to the first pulley mounting block. The second pulley mounting block is fixed to the bottom edge of the frame. The second pulley is rotatably connected to the second pulley mounting block. The synchronous belt is respectively in transmission connection with the first pulley and the second pulley.

[0016] Preferably, a plurality of the layered doors include a top layer door and connecting layered doors. The connecting layered doors are located below the top layer door. Sealing strips are fixed to the bottoms of both the top layer door and the connecting layered doors. Positioning pins are fixed to both ends of the top of the connecting layered doors. Positioning pin seats are fixed to both the top layer door and the connecting layered doors. The positioning pins are adaptively inserted into the adjacent positioning pin seats. The grooved pulley is rotatably connected to the positioning pin seat.

[0017] Preferably, a positioning post is fixedly connected to the machine base, and the positioning post limits the rotation stroke of the gear rod.

[0018] Preferably, one end of the gear rod has a sector-shaped tooth piece, and the other end of the gear rod has a guiding arc surface. Description of the Drawings

[0019] Figure 1 is a schematic diagram of the overall structure of a refrigeration device with layered doors according to the present invention Figure 1 ;

[0020] Figure 2 is a schematic diagram of the overall structure of a refrigeration device with layered doors according to the present invention Figure 2 ;

[0021] Figure 3 is a schematic diagram of the main structure of a refrigeration device with layered doors according to the present invention;

[0022] Figure 4 is a partially enlarged schematic diagram of a refrigeration device with layered doors according to the present invention;

[0023] Figure 5 is a schematic diagram of the layered doors of a refrigeration device with layered doors according to the present invention;

[0024] Figure 6 is a schematic diagram of the installation of a DC motor assembly of a refrigeration device with layered doors according to the present invention.

[0025] 1 Main body structure, 11 Frame, 12 Insulation box, 13 Medicine storage rack, 14 Refrigeration fan, 2 Power mechanism, 21 Servo motor, 22 Reducer, 23 Transmission shaft, 24 Timing belt assembly, 241 First pulley mounting block, 242 First pulley, 243 Second pulley mounting block, 244 Second pulley, 245 Timing belt, 3 Laminated door opening mechanism, 31 Laminated door, 32 Guide rail, 33 Slide block, 34 DC motor assembly, 341 Base, 342 DC motor, 343 Gear, 344 Rack, 4 Positioning pin seat, 5 Bump, 6 Laminated door receiving plate, 7 Wheel rail, 8 Groove wheel, 9 Seat plate, 10 Sealing strip, 101 Positioning pin, 102 Positioning column. Detailed implementation mode

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0027] Refer to the attached drawings of the present invention Figures 1 to 6 , a refrigeration device with laminated door opening according to an embodiment of the present invention, which includes:

[0028] Main body structure 1, the main body structure 1 includes a frame 11, an insulation box 12, a medicine storage rack 13 and a refrigeration fan 14. One side of the insulation box 12 is open, and the insulation box 12 is fixed inside the frame 11; the medicine storage rack 13 is fixed inside the insulation box 12, and the medicine storage rack forms a plurality of medicine storage positions for storing medicine boxes; the refrigeration fan 14 is fixed on the inner side wall of the insulation box 12; the refrigeration fan provides refrigerated air to reduce the internal temperature of the insulation box.

[0029] Power mechanism 2, the power mechanism 2 includes a servo motor 21, a reducer 22, a transmission shaft 23 and a timing belt assembly 24. The servo motor 21 is fixed in the middle of the top of the frame 11, the output shaft of the servo motor 21 is in transmission connection with the input shaft of the reducer, the transmission shafts 23 are horizontally rotatably connected in pairs at the top of the frame 11, one end of the transmission shaft 23 is in transmission connection with the output shaft of the reducer, and the timing belt assembly 24 rotates on the two side edges of the frame 11 and is in transmission connection with the other end of the transmission shaft; a coupling is used to connect and transmit power between the reducer and the transmission shaft,

[0030] The layered door opening mechanism 3 includes multiple layered doors 31, guide rails 32, sliders 33 and a DC motor assembly 34. The multiple layered doors 31 are slidably connected to the frame 11 up and down corresponding to the open side of the insulation box 12. The guide rails 32 are fixed on both sides of the frame 11 and correspond to the transmission direction of the synchronous belt. The sliders 33 are slidably connected to the guide rails 32. The DC motor assembly 34 includes a base 341, a DC motor 342, a gear 343 and a gear rod 344. The base 341 is fixedly connected to the slider 33 and the synchronous belt respectively. The DC motor 342 is fixed on the base. The gear 343 and the gear rod 344 are both rotatably connected to the base 341. The gear 343 and the gear rod 344 are in meshing transmission. The output shaft of the DC motor 342 is connected to the gear in transmission. A convex block 5 is fixed on the layered door 31. One end of the gear rod 344 can abut against the convex block and push open the layered door under the drive of the synchronous belt. The gear rod first rotates under the drive of the DC motor and the gear, so that one end of the gear rod contacts the convex block on the layered door and is clamped below the convex block. Under the rotation drive of the synchronous belt, the gear rod moves up and down to open the layered door and pick up medicine.

[0031] When the servo motor drives the DC motor assembly to move, the DC motor assembly drives the layered door to move, so as to realize layered door opening; the guide rail plays a guiding role for the DC motor assembly.

[0032] The control system is electrically connected to the refrigeration fan, the servo motor and the DC motor respectively.

[0033] In some other embodiments, a layered door receiving plate 6 is fixed at the bottom of the frame 11 corresponding to the open side of the insulation box. The layered door receiving plate 6 abuts against the bottom layered door. That is to say, the bottom layered door is limited under the abutment of the layered door receiving plate. Considering the heat preservation effect, there is a sealing plate on the inner side of the layered door to seal the open mouth of the insulation box. At this time, due to the sliding reason, a dynamic sealing connection is adopted.

[0034] In some other embodiments, wheel rails 7 are respectively fixed on both sides of the frame 11. Both ends of one side of the multiple layered doors 31 are rotatably connected with grooved wheels 8. The grooved wheels 8 are slidably connected to the wheel rails 7. The axial direction of the wheel rails 7 is parallel to the axial direction of the guide rails 32. The layered door completes the effect of sliding up and down to open and close the door under the cooperation of the grooved wheel and the wheel rail. The wheel rail plays a guiding role for the layered door, making the door opening more stable and smooth.

[0035] In some other embodiments, a seat plate 9 is fixed at the bottom of the reducer 22. The seat plate 9 is fixedly connected to the frame 11.

[0036] In some other embodiments, the synchronous belt assembly 24 includes a first pulley mounting block 241, a first pulley 242, a second pulley mounting block 243, a second pulley 244, and a synchronous belt 245. The first pulley mounting block 241 is fixed to the top edge of the frame 11. The first pulley 242 is rotatably connected to the first pulley mounting block 241. The second pulley mounting block 243 is fixed to the bottom edge of the frame 11. The second pulley 244 is rotatably connected to the second pulley mounting block 243. The synchronous belt 245 is respectively in transmission connection with the first pulley 242 and the second pulley 244.

[0037] In some other embodiments, the layered door 31 includes a top layer door and a connecting layered door. The connecting layered door is located below the top layer door. Sealing strips 10 are fixed to the bottoms of both the top layer door and the connecting layered door. Positioning pins 101 are fixed to both ends of the top of the connecting layered door. Positioning pin seats 4 are fixed to both the top layer door and the connecting layered door. The positioning pins 101 are adaptively inserted into the adjacent positioning pin seats 4 to ensure the sealing and heat preservation effect between multiple layered doors. The grooved pulley 8 is rotatably connected to the positioning pin seat 4.

[0038] The sealing strip seals the gap between the layer doors. The selected positioning pin is conical, which is convenient for closing the door, prevents position deviation and collision, and the sealing strip can also play a buffering role when closing the door.

[0039] In some other specific embodiments, a positioning post 102 is fixedly connected to the machine base 341. The positioning post 102 is used to limit the rotation stroke of the gear rod, which has a certain safety protection function.

[0040] When the gear rod rotates to a certain angle, the positioning post restricts the rotation of the gear rod. At this time, the gear rod contacts the convex block on the layered door and drives the layered door to move upward to achieve layered door opening.

[0041] In some other specific embodiments, one end of the gear rod 344 has a sector tooth piece, and the sector tooth piece meshes with the gear. The other end of the gear rod 344 has a guiding arc surface, and the guiding arc surface facilitates the contact and separation between the gear rod and the convex block.

[0042] The working process of the refrigeration device with a hierarchical door opening is as follows: At the initial working state, the DC motor assembly is in the initial position. When the door needs to be opened, the control system controls the servo motor to drive the synchronous belt to move, and the synchronous belt drives the DC motor assembly to move to the position of the layer door that needs to be opened. At this time, the control system controls the DC motor to drive the gear to rotate, and the gear drives the gear rod to rotate until one end of the gear rod contacts the convex block support on the corresponding hierarchical door. The control system controls the servo motor to drive the synchronous belt to move, and the synchronous belt drives the DC motor assembly to move upward, and then the gear rod drives the hierarchical door to slide upward to achieve the door opening action; when the door needs to be closed, the control system controls the servo motor to drive the synchronous belt to move, and the synchronous belt drives the DC motor assembly to move downward so that the hierarchical door contacts the next hierarchical door. At this time, the control system controls the DC motor to drive the gear to rotate, and the gear drives the gear rod to rotate to separate the gear rod from the hierarchical door to achieve the door closing action. It should be noted that one end of the gear rod can rotate below the convex block. To meet the length requirement, the door opening and closing actions can be achieved. The specific dimension design can be arranged according to actual needs.

[0043] For the device and usage method disclosed in the embodiments, since they correspond to the method disclosed in the embodiments, the description is relatively simple. For related parts, refer to the description in the method section.

[0044] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A refrigeration device with a hierarchical door opening structure, characterized in that, it includes: A main body structure (1), the main body structure (1) includes a frame (11), a heat preservation box (12), a medicine storage bin rack (13) and a refrigeration fan (14). One side of the heat preservation box (12) is open, and the heat preservation box (12) is fixed inside the frame (11); the medicine storage bin rack (13) is fixed inside the heat preservation box (12), and the medicine storage bin rack (13) is used for placing medicine storage boxes; the refrigeration fan (14) is fixed on the inner side wall of the heat preservation box (12); A power mechanism (2), the power mechanism (2) includes a servo motor (21), a reducer (22), a transmission shaft (23) and a synchronous belt assembly (24). The servo motor (21) is fixed in the middle of the top of the frame (11), the output shaft of the servo motor (21) is drivingly connected to the input shaft of the reducer, the transmission shafts (23) are horizontally rotatably connected in groups of two at the top of the frame (11), one end of the transmission shaft (23) is drivingly connected to the output shaft of the reducer, and the synchronous belt assembly (24) rotates on the two side edges of the frame (11) and is drivingly connected to the other end of the transmission shaft; A hierarchical door opening mechanism (3), the hierarchical door opening mechanism (3) includes a plurality of hierarchical doors (31), guide rails (32), sliders (33) and a DC motor assembly (34). The plurality of hierarchical doors (31) are slidably connected up and down on the frame (11) corresponding to the open side of the heat preservation box (12), the guide rails (32) are fixed on both sides of the frame (11) and correspond to the transmission direction of the synchronous belt, and the sliders (33) are slidably connected to the guide rails (32); the DC motor assembly (34) includes a base (341), a DC motor (342), a gear (343) and a gear rod (344). The base (341) is fixedly connected to the slider (33) and the synchronous belt respectively, the DC motor (342) is fixed on the base, the gear (343) and the gear rod (344) are both rotatably connected to the base (341), the gear (343) is meshed and driven with the gear rod (344), and the output shaft of the DC motor (342) is drivingly connected to the gear; a convex block (5) is fixed on the hierarchical door (31), and one end of the gear rod (344) can be abutted against the convex block to push open the hierarchical door under the drive of the synchronous belt; A control system, the control system is electrically connected to the refrigeration fan, the servo motor and the DC motor respectively.

2. A refrigeration device with a hierarchical door opening structure according to claim 1, characterized in that, A hierarchical door receiving plate (6) is fixed at the bottom of the frame (11) corresponding to the open side of the heat preservation box, and the hierarchical door receiving plate (6) abuts against the bottom hierarchical door.

3. A refrigeration device with a hierarchical door opening structure according to claim 2, characterized in that, On both sides of the frame (11), wheel rails (7) are respectively fixed. At both ends of one side of each of the plurality of hierarchical doors (31), grooved pulleys (8) are rotatably connected. The grooved pulleys (8) are slidably connected to the wheel rails (7), and the axial direction of the wheel rails (7) is parallel to the axial direction of the guide rails (32).

4. A refrigeration device with hierarchical door opening according to claim 3, wherein, A seat plate (9) is fixed to the bottom of the speed reducer (22), and the seat plate (9) is fixedly connected to the frame (11).

5. A refrigeration device with hierarchical door opening according to claim 4, wherein, The synchronous belt assembly (24) includes a first pulley mounting block (241), a first pulley (242), a second pulley mounting block (243), a second pulley (244) and a synchronous belt (245). The first pulley mounting block (241) is fixed to the top edge of the frame (11), the first pulley (242) is rotatably connected to the first pulley mounting block (241), the second pulley mounting block (243) is fixed to the bottom edge of the frame (11), the second pulley (244) is rotatably connected to the second pulley mounting block (243), and the synchronous belt (245) is respectively in transmission connection with the first pulley (242) and the second pulley (244).

6. A refrigeration device with hierarchical door opening according to claim 5, wherein, The plurality of hierarchical doors (31) include a top layer door and connecting hierarchical doors. The connecting hierarchical doors are located below the top layer door. Sealing strips (10) are fixed to the bottoms of the top layer door and the connecting hierarchical doors. Positioning pins (101) are fixed to both ends of the top of the connecting hierarchical doors. Positioning pin seats (4) are fixed to both the top layer door and the connecting hierarchical doors. The positioning pins (101) are adaptively inserted into the adjacent positioning pin seats (4), and the grooved pulleys (8) are rotatably connected to the positioning pin seats (4).

7. A refrigeration device with hierarchical door opening according to claim 6, wherein, A positioning column (102) is fixedly connected to the machine base (341), and the positioning column (102) limits the rotation stroke of the gear rod.

8. A refrigeration device with hierarchical door opening according to claim 7, wherein, One end of the gear rod (344) has a sector-shaped tooth piece, and the other end of the gear rod (344) has a guiding arc surface.

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