CN111772362B

CN111772362B - Medicine cabinet that security is good

Info

Publication number: CN111772362B
Application number: CN202010678112.8A
Authority: CN
Inventors: 任小利; 任小平
Original assignee: Chongqing Chemical Industry Vocational College
Current assignee: Chongqing Chemical Industry Vocational College
Priority date: 2020-07-15
Filing date: 2020-07-15
Publication date: 2021-12-03
Anticipated expiration: 2040-07-15
Also published as: CN111772362A

Abstract

The invention discloses a medicine cabinet with good safety, wherein a rectangular frame is fixedly embedded in the front of a cabinet body, drawers are arranged in the rectangular frame in a sliding mode, name cards are fixedly arranged on the outer walls of the drawers, first electric telescopic rods are fixedly arranged at the tail ends of the drawers at the lower half part, a moving assembly comprises four third bearings, the number of the third bearings is four, the third bearings are respectively fixed below four corners of the cabinet body, wheel supports are fixedly arranged below the third bearings, and moving wheels are respectively arranged below the wheel supports. Has the advantages that: the drawer can be prevented from sliding out when the cabinet body inclines or shakes, the drawer can be automatically drawn out from the cabinet body, the drawers can be simultaneously drawn out, the drawer at the upper end of the cabinet body can be drawn out and then moved to a place with a lower height, medicinal materials in the drawer can be taken out without the help of a ladder or a stool, and therefore the danger during medicine taking can be reduced.

Description

Medicine cabinet that security is good

Technical Field

The invention relates to the technical field of medical medicines, in particular to a medicine cabinet with good safety.

Background

Use the medicine cabinet to save various medicines in the hospital pharmacy, general medicine cabinet has drawer type and plywood type, it is the drawer type to use more in traditional chinese medicine pharmacy, but take place the slope when the medicine cabinet, when rocking, the easy landing of drawer, make the medicine in the drawer drop, cause the medicine loss, and the drawer needs the manual work to follow and takes out, the operation is comparatively loaded down with trivial details, and when needing once to get multiple medicinal material, need the drawer of opening of one, efficiency is lower, and in order to deposit the height that the common medicine cabinet of more multiple type medicinal material highly all set up higher, need with the help of ladder or stool when getting the medicinal material in the cabinet upper end drawer, dangerous when making to get it filled is higher, will take place the tumble injury carelessly.

An effective solution to the problems in the related art has not been proposed yet.

Disclosure of Invention

The invention aims to provide a medicine cabinet with good safety so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a medicine cabinet with good safety is characterized in that a rectangular frame is fixedly embedded in the front of a cabinet body, and drawers are arranged in the rectangular frame in a sliding mode; name cards are fixedly arranged on the outer walls of the drawers, first electric telescopic rods are fixedly arranged at the tail ends of the drawers at the lower half part, and one ends of the first electric telescopic rods, far away from the drawers, are fixedly connected with the inner wall of the back face of the cabinet body; one side of the rectangular frame of the upper half part is provided with a through groove, the front surface of the cabinet body is provided with a first sliding groove communicated with the through groove, one end of the first sliding groove, which is far away from the through groove, is provided with a second sliding groove, the tail end of the drawer of the upper half part is fixedly provided with a second electric telescopic rod, and one end of the second electric telescopic rod, which is far away from the drawer, is fixedly provided with a clamping plate;

a driving device is fixedly arranged on the back of the cabinet body and comprises a first U-shaped groove, a first sliding rod and a first screw rod are arranged between two ends of the first U-shaped groove, and two ends of the first screw rod are fixedly connected with groove walls at two ends of the first U-shaped groove; the outer walls of two ends of the first screw rod are fixedly sleeved with first bearings, the first bearings are respectively fixedly embedded at two ends of the first U-shaped groove, one end of the first U-shaped groove is fixedly provided with a first motor, and a rotating shaft of the first motor is fixedly connected with the first screw rod; the first screw rod and the outer wall of the first slide rod are provided with first slide blocks, the middle part of each first slide block is provided with a first threaded hole and a first slide hole, the first threaded hole is in threaded connection with the first screw rod, the first slide holes are slidably sleeved on the outer wall of the first slide rod, the first slide blocks are respectively and fixedly provided with a limiting frame, and the front surfaces of the limiting frames are respectively provided with a rectangular groove matched with the second electric telescopic rods; a second U-shaped groove is fixedly arranged on one side of the upper end of the first U-shaped groove, a second sliding rod and a second lead screw are arranged between two ends of the second U-shaped groove, two ends of the second lead screw are fixedly connected with the groove walls of two ends of the second U-shaped groove, second bearings are fixedly sleeved on the outer walls of two ends of the second lead screw, the second bearings are fixedly embedded at two ends of the second U-shaped groove respectively, and a second motor is fixedly arranged at one end of the second U-shaped groove; a rotating shaft of a second motor is fixedly connected with a second screw rod, a second sliding block is arranged on the outer wall of the second screw rod and the outer wall of a second sliding rod, a second threaded hole and a second sliding hole are formed in the middle of the second sliding block, the second threaded hole is in threaded connection with the second screw rod, and the second sliding hole is sleeved on the outer wall of the second sliding rod in a sliding mode;

a clamping jaw cylinder is fixedly arranged on the second sliding block, clamping jaws are fixedly arranged on piston rods at two ends of the clamping jaw cylinder, and the clamping plates are clamped and fixed between the corresponding clamping jaws; a PLC controller is fixedly arranged in the bottom end of the cabinet body, a control panel is fixedly arranged on the outer wall of one side of the lower end of the cabinet body, a button is fixedly arranged on the control panel, and a medicine taking button and a reset button are fixedly arranged on the control panel; the electromagnetic valves of the first motor, the second motor, the first electric telescopic rod, the second electric telescopic rod and the clamping jaw air cylinder are electrically connected with the PLC, a moving assembly is arranged below the cabinet body, and a ventilation device is arranged in the cabinet body; the keys are all bonded with first label patches, and the outer walls of the drawers are all bonded with second label patches corresponding to the first label patches; the movable assembly comprises four third bearings, the number of the third bearings is four, the third bearings are fixed at four corners of the cabinet respectively, wheel supports are fixedly arranged below the third bearings, and movable wheels are mounted below the wheel supports.

In the present case, foot-operated arresting gear is all installed to wheel support one side.

In this case, the inner ends of the drawers are all arranged in a reduced state.

In the present case, the cardboard is kept away from clamping jaw one end and all sets up and be the situation of dwindling.

In this case, the drawer outer wall all is equipped with the mounting panel through the damping hinge is rotatable, and second reference numeral paster and name card all bond at the mounting panel outer wall.

In the present case, ventilation unit includes the drum, and the drum is fixed to be inlayed and establish in cabinet body lower extreme one side, through the fixed third motor that is equipped with of connecting rod in the drum, the fixed a plurality of flabellums that are equipped with of pivot outer wall of third motor, the fixed ventilation button that is equipped with on the control panel, ventilation button, third motor all with PLC controller electric connection.

Compared with the prior art, the invention has the following beneficial effects:

(1) according to the invention, by arranging the cabinet body, the rectangular frame, the drawer, the name card, the first electric telescopic rod, the second electric telescopic rod, the clamping plate, the driving device, the PLC, the control panel, the keys, the medicine taking button and the reset button, the drawer can be prevented from sliding out when the cabinet body is inclined or shaken, the drawer can be automatically drawn out from the cabinet body, a plurality of drawers can be drawn out simultaneously, and the drawer at the upper end of the cabinet body can be drawn out and moved to a lower position, so that medicinal materials in the drawer can be taken out without a ladder or a stool, and the danger in medicine taking can be reduced.

(2) The first label patch and the second label patch are arranged, so that the keys and the drawers can be conveniently in one-to-one correspondence.

(3) The damping hinge and the mounting plate are arranged, so that the angle of the mounting plate can be adjusted, the second label patch and the name card on the outer wall of the drawer at the upper end can be adjusted to be inclined, and the second label patch and the name card at the upper end can be conveniently seen when the drawer is close to the cabinet body.

(4) According to the invention, the indicator lamp above the key is turned on to play a role of identification when the key is pressed for the first time, the drawer corresponding to the key with the turned-on indicator lamp can be automatically opened by pressing the medicine taking button, and when the drawer which does not need to be opened is pressed by mistake, the indicator lamp is turned off after the key is pressed again, so that the drawer can be cancelled to be opened.

(5) According to the invention, by arranging the ventilation device, the fan blades can be driven by the third motor to rotate to drive the air in the cabinet body to flow, so that medicinal materials can be effectively prevented from being affected with damp due to over-heavy damp in the cabinet body.

(6) The cabinet body can be conveniently moved by arranging the moving assembly and the foot-operated braking device, and the foot-operated braking device can lock the moving wheels.

(7) According to the invention, the inner ends of the drawers are all arranged in a reduced state, so that the drawers can be conveniently inserted into the rectangular frame.

(8) According to the invention, the clamping plates are arranged in a reduced state at the ends far away from the clamping jaws, so that the clamping plates can be conveniently inserted into the limiting frames.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a front view of the cabinet of the present invention;

FIG. 3 is a cross-sectional view of the case of the present invention;

FIG. 4 is a schematic view of the structure of the driving device of the present invention;

FIG. 5 is a schematic view of a first U-shaped channel according to the present invention;

FIG. 6 is a cross-sectional view of a first U-shaped channel in the present invention;

FIG. 7 is a schematic structural view of a stop frame according to the present invention;

FIG. 8 is a schematic view of the structure of the card of the present invention;

FIG. 9 is a cross-sectional view of a second U-shaped channel in the present invention;

FIG. 10 is a schematic view of the first power extension pole and the drawer of the present invention;

FIG. 11 is a schematic view of the second electric telescopic rod and the drawer according to the present invention;

FIG. 12 is a schematic view of the drawer of the present invention;

FIG. 13 is a schematic diagram of a rectangular frame structure according to the present invention.

Reference numerals:

1. a cabinet body; 2. a rectangular frame; 3. a drawer; 4. a name card; 5. a first electric telescopic rod; 6. penetrating a groove; 7. a first chute; 8. a second chute; 9. a second electric telescopic rod; 10. clamping a plate; 11. a first U-shaped slot; 12. a first slide bar; 13. a 15 th screw rod; 14. a first bearing; 15. a first motor; 16. a first slider; 17. a limiting frame; 18. a rectangular groove; 19. a second U-shaped slot; 20. a second slide bar; 21. a second lead screw; 22. a second bearing; 23. a second motor; 24. a second slider; 25. a clamping jaw cylinder; 26. a clamping jaw; 27. a PLC controller; 28. a control panel; 29. pressing a key; 30. a medicine taking button; 31. a reset button; 32. a first label patch; 33. a second label patch; 34. a damping hinge; 35. mounting a plate; 36. an indicator light; 37. a cylinder; 38. a third motor; 39. a fan blade; 40. a venting button; 41. a third bearing; 42. a wheel carrier; 43. a moving wheel; 44. a pedal type brake device.

Detailed Description

The invention is further described with reference to the following drawings and detailed description:

the first embodiment is as follows:

referring to fig. 1-13, a medicine cabinet with good safety according to an embodiment of the present invention includes a cabinet body 1, eighteen rectangular frames 2 are fixedly embedded in the front of the cabinet body 1, drawers 3 are slidably disposed in the rectangular frames 2, name cards 4 are fixedly disposed on the outer walls of the drawers 3, first electric telescopic rods 5 are fixedly disposed at the ends of the drawers 3 at the lower half portion, one end of each first electric telescopic rod 5 away from the drawer 3 is fixedly connected to the inner wall of the back of the cabinet body 1, a through groove 6 is disposed at one side of the rectangular frame 2 at the upper half portion, a first sliding groove 7 communicated with the through groove 6 is disposed at the front of the cabinet body 1, a second sliding groove 8 is disposed at one end of the first sliding groove 7 away from the through groove 6, a second electric telescopic rod 9 is fixedly disposed at the end of the drawer 3 at the upper half portion, a clamping plate 10 is fixedly disposed at one end of the second electric telescopic rod 9 away from the drawer 3, the back of the cabinet body 1 is fixedly provided with three driving devices, each driving device comprises a first U-shaped groove 11, a first sliding rod 12 and a first lead screw 13 are arranged between two ends of the first U-shaped groove 11, two ends of the first lead screw 13 are fixedly connected with groove walls at two ends of the first U-shaped groove 11, outer walls at two ends of the first lead screw 13 are fixedly sleeved with first bearings 14, the first bearings 14 are respectively fixedly embedded at two ends of the first U-shaped groove 11, one end of the first U-shaped groove 11 is fixedly provided with a first motor 15, a rotating shaft of the first motor 15 is fixedly connected with the first lead screw 13, the outer walls of the first lead screw 13 and the first sliding rod 12 are provided with three first sliding blocks 16, the middle part of the first sliding block 16 is provided with a first threaded hole and a first sliding hole, the first threaded hole is in threaded connection with the first lead screw 13, and the first sliding hole is sleeved on the outer wall of the first sliding rod 12, the first sliding block 16 is fixedly provided with a limiting frame 17, the front surface of the limiting frame 17 is provided with a rectangular groove 18 matched with the second electric telescopic rod 9, one side of the upper end of the first U-shaped groove 11 is fixedly provided with three second U-shaped grooves 19, a second sliding rod 20 and a second lead screw 21 are arranged between the two ends of each second U-shaped groove 19, the two ends of each second lead screw 21 are fixedly connected with the groove walls of the two ends of each second U-shaped groove 19, the outer walls of the two ends of each second lead screw 21 are fixedly sleeved with second bearings 22, the second bearings 22 are respectively fixedly embedded at the two ends of each second U-shaped groove 19, one end of each second U-shaped groove 19 is fixedly provided with a second motor 23, the rotating shaft of the second motor 23 is fixedly connected with the second lead screw 21, the outer walls of the second lead screws 21 and the second sliding rods 20 are provided with second sliding blocks 24, the middle part of each second sliding block 24 is provided with a second threaded hole and a second sliding hole, the second threaded hole is in threaded connection with the second lead screw 21, the second sliding hole is slidably sleeved on the outer wall of the second sliding rod 20, the second slider 24 is fixedly provided with a clamping jaw cylinder 25, piston rods at two ends of the clamping jaw cylinder 25 are both fixedly provided with clamping jaws 26, the clamping plate 10 is clamped and fixed between the corresponding clamping jaws 26, a PLC (programmable logic controller) 27 is fixedly arranged in the bottom end of the cabinet body 1, the outer wall of one side of the lower end of the cabinet body 1 is fixedly provided with a control board 28, the control board 28 is fixedly provided with eighteen keys 29, the control board 28 is fixedly provided with a medicine taking button 30 and a reset button 31, the first motor 15, the second motor 23, the first electric telescopic rod 5, the second electric telescopic rod 9 and the electromagnetic valves of the clamping jaw cylinder 25 are all electrically connected with the PLC 27, and the cabinet body 1 is provided with a moving component, a ventilation device is arranged in the cabinet body 1.

According to the scheme of the invention, the phenomenon that the drawer 3 slides out when the cabinet body 1 inclines or shakes can be prevented, the drawer 3 can be automatically pulled out from the cabinet body 1, a plurality of drawers 3 can be pulled out simultaneously, and the drawer 3 at the upper end of the cabinet body 1 can be pulled out and moved to a place with a lower height, so that medicinal materials in the drawer 3 can be taken out without a ladder or a stool, and the danger during medicine taking can be reduced.

Example two:

referring to fig. 1, 10 and 11, for the keys 29, first label patches 32 are adhered to the keys 29, and second label patches 33 corresponding to the first label patches 32 are adhered to the outer walls of the drawers 3; for the drawer 3, mounting plates 35 are rotatably arranged on the outer walls of the drawer 3 through damping hinges 34, and the second label patches 33 and the name cards 4 are adhered to the outer walls of the mounting plates 35; for the drawer 3 and the keys 29, the drawer 3 and the keys 29 are arranged in six rows and three columns.

Through the scheme of the invention, the first label paster 32 and the second label paster 33 can be used for conveniently corresponding the keys 29 and the drawers 3 one by one, and the angle of the mounting plate 35 can be adjusted, so that the second label paster 33 and the name card 4 on the outer wall of the drawer 3 at the upper end can be adjusted to be inclined, and the second label paster 33 and the name card 4 at the upper end can be conveniently seen when the cabinet body 1 is close to the cabinet body.

Example three:

referring to fig. 1 and 3, for the control board 28, indicator lights 36 are fixedly embedded on the control board 28 and above the keys 29, and the indicator lights 36 are electrically connected to the PLC controller 27; for the ventilation device, the ventilation device comprises a cylinder 37, the cylinder 37 is fixedly embedded in one side of the lower end of the cabinet body 1, a third motor 38 is fixedly arranged in the cylinder 37 through a connecting rod, a plurality of fan blades 39 are fixedly arranged on the outer wall of a rotating shaft of the third motor 38, a ventilation button 40 is fixedly arranged on the control board 28, and the ventilation button 40 and the third motor 38 are electrically connected with the PLC controller 27.

Through the scheme of the invention, the indicator light 36 above the key 29 can be lighted to play a role of identification when the key 29 is pressed for the first time, the drawer 3 corresponding to the key 29 with the lighted indicator light 36 can be automatically opened by pressing the medicine taking button 30, when the drawer 3 which does not need to be opened is pressed by mistake, the indicator light 36 is turned off after the key 29 is pressed again, the drawer 3 can be cancelled to be opened, and the fan blades 39 can be driven by the third motor 38 to rotate to drive the air in the cabinet body 1 to flow, so that the medicinal materials can be effectively prevented from being humidified due to the fact that the damp air in the cabinet body 1 is too heavy.

Example four:

referring to fig. 1, 8 and 12, for the moving assembly, the moving assembly includes four third bearings 41, the number of the third bearings 41 is four, and the third bearings are respectively fixed under four corners of the cabinet 1, wheel brackets 42 are fixed under the third bearings 41, and moving wheels 43 are mounted under the wheel brackets 42; for the wheel bracket 42, a foot-operated braking device 44 is arranged on one side of the wheel bracket 42; for the drawer 3, the inner ends of the drawer 3 are all arranged in a reduced state; for the card 10, the card 10 is disposed in a reduced position at an end thereof remote from the jaws 26.

Through the scheme of the invention, the moving wheels 43 can facilitate the movement of the cabinet body 1, the pedal type braking device 44 can lock the moving wheels 43, the inner ends of the drawers 3 are all arranged in a reduced state, the drawers 3 can be conveniently inserted into the rectangular frame 2, one ends of the clamping plates 10 far away from the clamping jaws 26 are all arranged in a reduced state, and the clamping plates 10 can be conveniently inserted into the limiting frame 17.

For the convenience of understanding the technical solutions of the present invention, the following detailed description will be made on the working principle or the operation mode of the present invention in the practical process.

In practical application, when the drawer 3 needs to be opened to take medicine, in order to prevent the drawer 3 at the upper end from colliding with the drawer 3 at the lower end when descending, the drawer 3 at the upper end and the drawer 3 at the lower end need to take medicine in batches, for nine drawers 3 at the lower end, the key 29 of the corresponding drawer 3 is pressed, the corresponding indicator light 36 is turned on, the medicine taking button 30 is pressed, the PLC controller 27 can control the corresponding first electric telescopic rod 5 to extend to eject the corresponding drawer 3 from the rectangular frame 2, medicine taking can be carried out, the reset button 31 is pressed after medicine taking is finished, the PLC controller 27 controls the cabinet second electric telescopic rod 9 to recover and reset, and the opened drawer 3 is pulled back into the rectangular frame 2; for nine drawers 3 positioned at the upper end, the button corresponding to the drawer 3 is pressed, the corresponding indicator light 36 is lighted, the medicine taking button 30 is pressed, the PLC controller 27 controls the corresponding second electric telescopic rod 9 to extend to push the corresponding drawer 3 out of the rectangular frame 2, then the PLC controller 27 controls the corresponding second motor 23 to work to drive the second screw rod 21 to rotate, the corresponding second slider 24 is moved towards the left side, the second slider 24 is moved to the leftmost side, the clamping plate 10 can be completely inserted into the limit frame 17, then the PLC controller 27 controls the corresponding clamping jaw air cylinder 25 to loosen the clamping plate 10 and controls the second motor 23 to rotate to move the second slider 24 towards the right side, the PLC controller 27 controls the corresponding first motor 15 to work to drive the first screw rod 13 to rotate, the corresponding first slider 16 is moved downwards, so that the drawer 3 at the upper end can be moved to the lower end to take medicine, after the medicine is taken out, a reset button 31 is pressed, a PLC controller 27 controls a first motor 15 to work to reset a first sliding block 16, then the PLC controller 27 controls a second motor 23 to work to move a second sliding block 24 to the leftmost side and controls a clamping jaw cylinder 25 to clamp and fix a clamping plate 10, then the PLC controller 27 controls a second motor 23 to work to move a second sliding block 24 to the rightmost side to reset, then a second electric telescopic rod 9 is controlled to recover and reset to open a drawer 3 and is pulled into a rectangular frame 2, under the limitation of a first electric telescopic rod 5 and a second electric telescopic rod 9, the phenomenon that the drawer 3 slides out when the cabinet body 1 inclines or shakes can be prevented, the drawer 3 can be automatically pulled out from the cabinet body 1, and a plurality of drawers 3 can be simultaneously pulled out, and the drawer 3 of the cabinet body 1 can be moved to a place with a lower height after being pulled out, therefore, medicinal materials in the drawer 3 can be taken out without a ladder or a stool, so that the danger in taking the medicinal materials can be reduced, the first label paster 32 and the second label paster 33 can be convenient for the keys 29 and the drawer 3 to be in one-to-one correspondence, the angle of the mounting plate 35 can be adjusted, so that the second label paster 33 and the name card 4 on the outer wall of the drawer 3 at the upper end can be adjusted to be inclined, the second label paster 33 and the name card 4 at the upper end can be conveniently seen when the drawer is close to the cabinet body 1, the indicator lamp 36 above the key 29 can be lightened to play a role of identification when the key 29 is pressed for the first time, the drawer 3 corresponding to the key 29 with the lightened indicator lamp 36 can be automatically opened by pressing the medicine taking button 30, when the drawer 3 which does not need to be opened is pressed by mistake, the indicator lamp 36 is turned off after the key 29 is pressed again, the drawer 3 can be cancelled to be opened, and the fan blades 39 can be driven by the third motor 38 to rotate to drive the air in the cabinet body 1 to flow, thereby can effectually prevent that the too heavy medicinal material that leads to of the internal damp of cabinet from weing, remove the removal that the cabinet body 1 can be convenient for of wheel 43, foot-operated arresting gear 44 can die the lock of removal wheel 43, all set up drawer 3 the inner and be the situation of reducing, can be convenient for insert drawer 3 in rectangular frame 2, keep away from clamping jaw 26 one end with cardboard 10 and all set up and be the situation of reducing, can be convenient for insert spacing frame 17 with cardboard 10 in.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A medicine cabinet with good safety is characterized in that a rectangular frame (2) is fixedly embedded in the front of a cabinet body (1), and drawers (3) are arranged in the rectangular frame (2) in a sliding manner; name cards (4) are fixedly arranged on the outer walls of the drawers (3), first electric telescopic rods (5) are fixedly arranged at the tail ends of the drawers (3) on the lower half portion, and one ends, far away from the drawers (3), of the first electric telescopic rods (5) are fixedly connected with the inner wall of the back of the cabinet body (1); one side of the rectangular frame (2) in the upper half part is provided with a through groove (6), the front of the cabinet body (1) is provided with a first sliding groove (7) communicated with the through groove (6), one end, far away from the through groove (6), of the first sliding groove (7) is provided with a second sliding groove (8), the tail end of the drawer (3) in the upper half part is fixedly provided with a second electric telescopic rod (9), and one end, far away from the drawer (3), of the second electric telescopic rod (9) is fixedly provided with a clamping plate (10);

a driving device is fixedly arranged on the back of the cabinet body (1), the driving device comprises a first U-shaped groove (11), a first sliding rod (12) and a first screw rod (13) are arranged between two ends of the first U-shaped groove (11), and two ends of the first screw rod (13) are fixedly connected with groove walls at two ends of the first U-shaped groove (11); the outer walls of two ends of the first screw rod (13) are fixedly sleeved with first bearings (14), the first bearings (14) are respectively fixedly embedded at two ends of the first U-shaped groove (11), one end of the first U-shaped groove (11) is fixedly provided with a first motor (15), and a rotating shaft of the first motor (15) is fixedly connected with the first screw rod (13); a first sliding block (16) is arranged on the outer walls of the first screw rod (13) and the first sliding rod (12), a first threaded hole and a first sliding hole are formed in the middle of the first sliding block (16), the first threaded hole is in threaded connection with the first screw rod (13), the first sliding hole is sleeved on the outer wall of the first sliding rod (12) in a sliding mode, limiting frames (17) are fixedly arranged on the first sliding block (16), and rectangular grooves (18) matched with the second electric telescopic rods (9) are formed in the front faces of the limiting frames (17); a second U-shaped groove (19) is fixedly arranged on one side of the upper end of the first U-shaped groove (11), a second slide bar (20) and a second screw rod (21) are arranged between two ends of the second U-shaped groove (19), two ends of the second screw rod (21) are fixedly connected with groove walls of two ends of the second U-shaped groove (19), second bearings (22) are fixedly sleeved on outer walls of two ends of the second screw rod (21), the second bearings (22) are fixedly embedded at two ends of the second U-shaped groove (19) respectively, and a second motor (23) is fixedly arranged at one end of the second U-shaped groove (19); a rotating shaft of the second motor (23) is fixedly connected with the second screw rod (21), a second sliding block (24) is arranged on the outer walls of the second screw rod (21) and the second sliding rod (20), a second threaded hole and a second sliding hole are formed in the middle of the second sliding block (24), the second threaded hole is in threaded connection with the second screw rod (21), and the second sliding hole is sleeved on the outer wall of the second sliding rod (20) in a sliding manner;

a clamping jaw air cylinder (25) is fixedly arranged on the second sliding block (24), clamping jaws (26) are fixedly arranged on piston rods at two ends of the clamping jaw air cylinder (25), and the clamping plate (10) is clamped and fixed between the corresponding clamping jaws (26); a PLC (programmable logic controller) (27) is fixedly arranged in the bottom end of the cabinet body (1), a control panel (28) is fixedly arranged on the outer wall of one side of the lower end of the cabinet body (1), a key (29) is fixedly arranged on the control panel (28), and a medicine taking button (30) and a reset button (31) are fixedly arranged on the control panel (28); the first motor (15), the second motor (23), the first electric telescopic rod (5), the second electric telescopic rod (9) and the electromagnetic valves of the clamping jaw air cylinder (25) are electrically connected with the PLC (27), a moving assembly is arranged below the cabinet body (1), and a ventilation device is arranged in the cabinet body (1); a first label patch (32) is bonded on each key (29), and a second label patch (33) corresponding to the first label patch (32) is bonded on the outer wall of the drawer (3); the moving assembly comprises four third bearings (41), the three third bearings (41) are respectively fixed below four corners of the cabinet body (1), wheel brackets (42) are fixedly arranged below the third bearings (41), and moving wheels (43) are respectively arranged below the wheel brackets (42);

when the drawer (3) needs to be opened for taking medicine, in order to prevent the drawer (3) at the upper end from colliding with the drawer (3) at the lower end when descending, the drawer (3) at the upper end and the drawer (3) at the lower end need to take medicine in batches, for nine drawers (3) at the lower end, a key (29) of the corresponding drawer (3) is pressed, a medicine taking button (30) is pressed, a PLC (27) can control a corresponding first electric telescopic rod (5) to extend to push the corresponding drawer (3) out of a rectangular frame (2), medicine taking can be carried out, a reset button (31) is pressed after medicine taking is finished, the PLC (27) controls a cabinet second electric telescopic rod (9) to recover and reset, and the opened drawer (3) is pulled back into the rectangular frame (2); for the drawer (3) positioned at the upper end, a button corresponding to the drawer (3) is pressed, a medicine taking button (30) is pressed, a PLC (27) controls a corresponding second electric telescopic rod (9) to extend to push the corresponding drawer (3) out of a rectangular frame (2), then the PLC (27) controls a corresponding second motor (23) to work to drive a second screw rod (21) to rotate, a corresponding second sliding block (24) moves towards the left side, the second sliding block (24) moves to the leftmost side to completely insert a clamping plate (10) into a limiting frame (17), then the PLC (27) controls a corresponding clamping jaw air cylinder (25) to loosen the clamping plate (10) and controls the second motor (23) to rotate to move the second sliding block (24) towards the right side, the PLC (27) controls a corresponding first motor (15) to work to drive a first screw rod (13) to rotate, and then a corresponding first sliding block (16) moves downwards, so that the drawer (3) at the upper end can be moved to the lower end for taking medicine; after the medicine taking is completed, a reset button (31) is pressed, a PLC (27) controls a first motor (15) to work to reset a first sliding block (16), then the PLC (27) controls a second motor (23) to work to move a second sliding block (24) to the leftmost side, a clamping jaw cylinder (25) is controlled to clamp a clamping plate (10) fixedly, then the PLC (27) controls the second motor (23) to work to move the second sliding block (24) to the rightmost side to reset, and then a second electric telescopic rod (9) is controlled to be recovered to reset to open a drawer (3) and be pulled into a rectangular frame (2).

2. The drug cabinet with good safety as claimed in claim 1, wherein a pedal brake device (44) is mounted on one side of the wheel support (42).

3. The safe medicine cabinet as claimed in claim 1, wherein the inner ends of the drawers (3) are arranged in a reduced state.

4. A safe pharmaceutical cabinet according to claim 1, wherein the clamping plates (10) are arranged in a reduced position at the ends thereof remote from the clamping jaws (26).

5. The safe medicine cabinet as claimed in claim 1, wherein mounting plates (35) are rotatably arranged on the outer walls of the drawers (3) through damping hinges (34), and the second label patches (33) and the name cards (4) are adhered to the outer walls of the mounting plates (35).

6. The medicine cabinet with good safety as claimed in claim 1, wherein the ventilation device comprises a cylinder (37), the cylinder (37) is fixedly embedded at one side of the lower end of the cabinet body (1), a third motor (38) is fixedly arranged in the cylinder (37) through a connecting rod, a plurality of fan blades (39) are fixedly arranged on the outer wall of a rotating shaft of the third motor (38), a ventilation button (40) is fixedly arranged on the control board (28), and the ventilation button (40) and the third motor (38) are electrically connected with the PLC (27).