A medical cart with intelligent safety lock

Abstract

The present invention relates to a medical cart with an intelligent safety lock, wherein a drawer grid is provided with a lock block; an eccentric wheel structure is provided with an eccentric shaft and connected with a lock rod; a driving structure drives the eccentric wheel structure to rotate forward and reversely to drive the lock rod to rise and fall and abut or separate from the lock block to achieve locking or unlocking action; a mechanical switch structure includes a switch knob and a rotating push block, and the rotating push block is provided with a linkage groove for the movement of the eccentric shaft. The medical cart of the present invention can drive the eccentric wheel structure to rotate forward and reversely through the driving structure in a normal working state to achieve intelligent unlocking; when the intelligent unlocking fails, the eccentric shaft can be rotated by rotating the switch knob to achieve manual mechanical unlocking; when the intelligent unlocking and manual mechanical unlocking fail, the drawer grid can be pulled by external force to make the lock rod flatten the lock block to achieve forced unlocking, so that the medical cart of the present invention has three unlocking methods, ensuring that the drawer grid can be unlocked and opened to take medicine during rescue, improving the safety of product use, and being suitable for emergency situations.

Description

Technical Field

[0001] The present invention relates to the technical field of medical equipment, and in particular to a medical cart with an intelligent safety lock. Background Art

[0002] Most of the drawers of existing medical carts use mechanical locks or electric smart locks. The keys of mechanical locks are generally stored in a centralized manner. In an emergency, the operation of taking out the keys will waste a lot of time, and the keys are easy to lose. Therefore, many medical carts use electric smart locks instead. Electric smart locks control the movement of the lock tongue through the cooperation of the motor and the transmission mechanism to realize the opening and closing of the lock. However, in the case of power failure or failure, the electric smart lock will cause the lock to be completely inoperable, and the drawer cannot be opened by external force, delaying the rescue of patients. Therefore, the existing technology needs to be developed. Summary of the invention

[0003] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a medical cart with an intelligent safety lock, so as to improve the reliability of locking and unlocking the medical cart.

[0004] In order to achieve the above object, the present invention provides the following technical solutions:

[0005] The present invention provides a medical cart with an intelligent safety lock, comprising a cart body, on which a plurality of drawers are arranged, wherein the intelligent safety lock is arranged on one side of the cart body and cooperates with the drawers to realize locking and unlocking actions;

[0006] A locking block is provided on one side of the drawer compartment, and the locking block is arranged vertically to the drawer compartment;

[0007] The intelligent safety lock includes a base and a driving structure, an eccentric wheel structure, and a mechanical switch structure arranged on the base. The eccentric wheel structure is provided with an eccentric shaft and connected with a lock tongue structure. The lock tongue mechanism is provided with a lock rod adapted to the lock block. The driving structure drives the eccentric wheel structure to rotate forward and reverse, and drives the lock rod to rise and fall to abut or separate from the lock block to achieve locking or unlocking action.

[0008] The mechanical switch structure includes a switch knob and a rotating push block connected to the switch knob, the rotating push block is provided with a linkage groove, the eccentric shaft moves within the range of the linkage groove, rotating the switch knob drives the eccentric shaft to rotate, and drives the locking rod to rise and fall to abut or separate from the locking block to achieve locking or unlocking action.

[0009] Furthermore, the smart safety lock also includes a detection structure, which includes a detection plate and a swing switch arranged on the detection plate. The swing switch moves synchronously with the eccentric wheel structure to detect the locked or unlocked state of the smart safety lock.

[0010] Furthermore, the base includes a main body and a bracket part assembled on the outer end of the main body, the main body is provided with an axial through hole, the rotating push block is assembled with the switch knob via the axial through hole, the switch knob is exposed and installed on the bracket part, an axially penetrating inner cavity is formed in the main body, and the eccentric wheel structure is installed in the inner cavity.

[0011] Furthermore, the locking tongue structure includes a locking bar, the locking rods are arranged on the locking bar at intervals, a pair of fixing rods are arranged at intervals on the upper end of the locking bar, and the eccentric shaft is accommodated between the two fixing rods.

[0012] Furthermore, the vehicle body is provided with control buttons and a display screen, the control buttons are used to control the working state of the smart safety lock, and the display screen is used to display the working state of the smart safety lock.

[0013] Furthermore, the locking block is a sheet metal part.

[0014] Furthermore, the thickness of the locking block is 1 mm.

[0015] The technical solution of the present invention has the beneficial effects:

[0016] The medical cart of the present invention can drive the eccentric wheel structure to rotate forward and reversely through the driving structure in a normal working state to drive the locking rod to rise and fall and abut or separate from the locking block to realize intelligent unlocking. When the intelligent unlocking fails, the eccentric shaft can be rotated by rotating the switch knob to drive the locking rod to rise and fall and abut or separate from the locking block to realize manual mechanical unlocking. When the intelligent unlocking and manual mechanical unlocking fail, the drawer grid can be pulled by external force to make the locking rod flatten the locking block and smoothly pull out the drawer grid to realize forced unlocking. The medical cart of the present invention has three unlocking modes, ensuring that it can be unlocked to open the drawer grid for operations such as taking medicine during rescue, thereby improving the safety of product use, being suitable for emergency situations, and being very convenient and quick to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the medical cart of the present invention;

[0018] Figure 2 is a schematic diagram of the medical cart of the present invention when it is locked;

[0019] Figure 3 yes Figure 2 A magnified view of middle;

[0020] Figure 4 is a schematic diagram of the medical cart of the present invention when it is unlocked;

[0021] Figure 5 yes Figure 4Enlarged view of middle B;

[0022] Figure 6 is a schematic diagram of the medical cart of the present invention when it is forcibly unlocked;

[0023] Figure 7 It is a structural schematic diagram of the lock tongue structure of the present invention;

[0024] Figure 8 It is a structural schematic diagram of the intelligent safety lock of the present invention;

[0025] Fig. 9 It is an exploded view of the intelligent safety lock of the present invention;

[0026] Fig.10 It is a structural schematic diagram of the detection structure of the present invention;

[0027] Fig.11 It is a schematic diagram of the unlocking process of the present invention.

[0028] Description of reference numerals:

[0029] 100-medical cart, 10-car body, 11-drawer grid, 12-lock block, 13-control button, 14-display screen, 20-intelligent safety lock, 21-base, 211-main body, 212-bracket, 213-axial through hole, 214-inner cavity, 22-driving structure, 23-eccentric wheel structure, 231-eccentric shaft, 232-lock tongue structure, 233-lock rod, 234-lock bar, 235-fixing rod, 24-mechanical switch structure, 241-switch knob, 242-rotating push block, 243-linkage slot, 25-detection structure, 251-detection plate, 252-swing switch. DETAILED DESCRIPTION

[0030] 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 specific embodiments described here are only used to explain the present invention and are not used to limit the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0032] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] In addition, in the present invention, the descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0034] Please refer to Figures 1 to 10 The present invention provides a medical cart 100 with a smart safety lock 20, comprising a body 10, on which a plurality of drawers 11 are arranged, wherein the smart safety lock 20 is arranged on one side of the body 10 and cooperates with the drawers 11 to achieve locking and unlocking actions;

[0035] A locking block 12 is disposed on one side of the drawer compartment 11 , and the locking block 12 is disposed perpendicular to the drawer compartment 11 .

[0036] The smart safety lock 20 includes a base 21 and a driving structure 22, an eccentric wheel structure 23, and a mechanical switch structure 24 arranged on the base 21. The eccentric wheel structure 23 is provided with an eccentric shaft 231 and is connected to a lock tongue structure 232. The lock tongue mechanism is provided with a lock rod 233 adapted to the lock block 12. The driving structure 22 drives the eccentric wheel structure 23 to rotate forward and reverse, and simultaneously drives the lock rod 233 to rise and fall to abut or separate from the lock block 12 to achieve locking or unlocking actions.

[0037] The mechanical switch structure 24 includes a switch knob 241 and a rotating push block 242 connected to the switch knob 241. The rotating push block 242 is provided with a linkage slot 243. The eccentric shaft 231 moves within the range of the linkage slot 243, which can eliminate the reverse force of the eccentric shaft 231. When the driving structure 22 drives the eccentric shaft 231 to rotate forward and reverse, the mechanical switch structure 24 will not move accordingly, thereby avoiding the loss of the standby switch function. Moreover, the switch knob 241 can be rotated to make the eccentric shaft 231 move and drive the locking rod 233 to rise and fall, abut against or separate from the locking block 12, and complete the manual locking or unlocking action.

[0038] In normal working state, when the driving structure 22 drives the eccentric wheel structure 23 to rotate along the first direction, the eccentric shaft 231 drives the locking rod 233 to descend and abut against the locking block 12. Since the locking rod 233 blocks the locking block 12, the drawer grid 11 cannot be pulled out at this time, that is, it is in a locked state (such as Figure 2 and Figure 3 shown).

[0039] When the driving structure 22 drives the eccentric wheel structure 23 to rotate along the second direction, the eccentric shaft 231 drives the locking rod 233 to rise and separate from the locking block 12. Since the locking rod 233 does not block the locking block 12, the drawer compartment 11 can be pulled out at this time, that is, it is in the unlocked state (such as Figure 4 and Figure 5 As shown), thereby realizing intelligent unlocking. The first direction and the second direction are opposite, for example, the first direction is clockwise and the second direction is counterclockwise.

[0040] When the driving structure 22 fails, the switch knob 241 can be rotated so that the eccentric shaft 231 located in the linkage slot 243 is driven to rise and fall by the rotating push block 242, so that the locking rod 233 abuts against or separates from the locking block 12 to achieve locking or unlocking action, thereby realizing manual mechanical unlocking.

[0041] When the driving structure 22 and the mechanical switch structure 24 fail, the drawer compartment 11 can be pulled vigorously, and the lock block 12 and the lock rod 233 are squeezed. Since the lock block 12 is vertically arranged with the drawer compartment 11, when a large force is applied, the lock block 12 will be deformed and flattened. After flattening, the lock rod 233 will not block the lock block 12, so the drawer can be pulled out smoothly, thereby completing forced unlocking. After forced unlocking, only the lock block 12 on the drawer compartment 11 needs to be replaced, which is convenient and quick to repair and convenient for the next use.

[0042] In a normal working state, the medical cart 100 of the present invention can drive the eccentric wheel structure 23 to rotate forward and reversely through the driving structure 22 to drive the locking rod 233 to rise and fall and abut against or separate from the locking block 12, thereby realizing intelligent unlocking;

[0043] When the intelligent unlocking fails, the switch knob 241 can be rotated to rotate the eccentric shaft 231 to drive the locking rod 233 to rise and fall to abut against or separate from the locking block 12, thereby realizing manual mechanical unlocking;

[0044] When the intelligent unlocking and the manual mechanical unlocking fail, the drawer compartment 11 can be pulled by external force so that the locking rod 233 can flatten the locking block and smoothly pull out the drawer compartment 11 to achieve forced unlocking. The medical cart 100 of the present invention has three unlocking modes, ensuring that it can be unlocked during rescue to open the drawer compartment 11 for operations such as taking medicine, so as to quickly enter the rescue state and avoid delaying the rescue of patients, thereby improving the safety of product use, being suitable for emergency situations, and being very convenient and quick to operate.

[0045] In this embodiment, the locking block 12 is a sheet metal part with a thickness of 1 mm. It is light in weight and high in strength, and can be deformed under the forced action of external force to ensure forced unlocking in an emergency.

[0046] In this embodiment, the driving structure 22 may be a DC motor controlled by an intelligent circuit, and the output end of the DC motor is fixedly connected to the eccentric wheel structure 23, thereby driving the eccentric wheel structure 23 to rotate.

[0047] Please refer to Fig. 9 and Fig.10 The smart safety lock 20 further includes a detection structure 25, which includes a detection plate 251 and a swing switch 252 disposed on the detection plate 251. The swing switch 252 moves synchronously with the eccentric shaft 231 to detect the locked or unlocked state of the smart safety lock 20. When the swing switch 252 swings to the leftmost end, it indicates a locked state, and when it swings to the rightmost end, it indicates an unlocked state, so that the system state of the smart safety lock 20 can be detected in real time.

[0048] Please refer to Figure 8 and Fig. 9 The base 21 includes a main body 211 and a bracket 212 assembled on the outer end of the main body 211. The detection structure 25 is arranged on the inner wall of the main body 211. The main body 211 is provided with an axial through hole 213. The rotating push block 242 is assembled with the switch knob 241 via the axial through hole 213. The switch knob 241 is exposed and mounted on the bracket 212, which is convenient for the user to apply force to operate. An axially penetrating inner cavity 214 is formed in the main body 211, and the eccentric wheel structure 23 is installed in the inner cavity 214.

[0049] Please refer to Figure 7 The locking tongue structure 232 includes a locking bar 234, the locking rod 233 is spaced apart on the locking bar 234, a pair of fixing rods 235 are spaced apart at the upper end of the locking bar 234, and the eccentric shaft 231 is accommodated between the two fixing rods 235 so that the locking bar 234 can move with the eccentric shaft 231.

[0050] In this embodiment, the vehicle body 10 is provided with a control button 13 and a display screen 14 . The control button 13 is used to control the working state of the smart safety lock 20 . The control button 13 can be divided into a rescue button and a lock button. The display screen 14 is used to display the working state of the smart safety lock 20 .

[0051] In actual use, please refer to Fig.11 When rescuing, the rescue button is pressed to control the driving structure 22 to unlock the smart safety lock 20. The detection board 251 detects the state of the smart safety lock 20 in real time. If it is unlocked normally, it enters the rescue state; if it is not unlocked normally, "Please manually unlock the machine" is displayed on the display screen 14;

[0052] By rotating the switch knob 241 to control the smart safety lock 20 to unlock, the detection board 251 detects the state of the smart safety lock 20 in real time. If the lock is unlocked normally by the machine, the rescue state is entered; if the lock is still not unlocked normally, that is, the manual mechanical unlocking fails, "Please manually force unlock" is displayed on the display screen 14;

[0053] After the drawer compartment 11 is forcibly opened and unlocked, rescue can be carried out smoothly;

[0054] After the rescue is completed, press the lock button to end the rescue.

[0055] The medical cart 100 of the present invention has three unlocking modes, ensuring that it can be unlocked to open the drawer 11 to take medicine and other operations during rescue, so as to quickly enter the rescue state, avoid delaying the rescue of patients, improve the safety of product use, and is suitable for emergency situations. The operation is very convenient and quick.

[0056] The security performance of the smart safety lock 20 of the present invention is not very strict, so it is suitable for medical carts 100 with general security and confidentiality requirements, so that the drawer 11 can be kept in a locked state as needed, and can be opened very conveniently without the trouble of storing and retrieving keys like a mechanical lock, and it can also effectively avoid the situation where the smart safety lock 20 that is only controlled by a motor or opened manually cannot work when a fault occurs.

[0057] The above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is impossible to list all the embodiments here. Any obvious changes or modifications derived from the technical solution of the present invention are still within the scope of protection of the present invention.

Claims

1. A medical cart with an intelligent safety lock, comprising a body, on which a plurality of drawers are arranged, characterized in that: The intelligent safety lock is arranged on one side of the vehicle body and cooperates with the drawer compartment to realize locking and unlocking actions; A locking block is provided on one side of the drawer compartment, and the locking block is arranged vertically to the drawer compartment; The intelligent safety lock includes a base and a driving structure, an eccentric wheel structure, and a mechanical switch structure arranged on the base. The eccentric wheel structure is provided with an eccentric shaft and connected with a lock tongue structure. The lock tongue structure is provided with a lock rod adapted to the lock block. The driving structure drives the eccentric wheel structure to rotate forward and reverse, and drives the lock rod to rise and fall to abut or separate from the lock block to achieve locking or unlocking action. The mechanical switch structure comprises a switch knob and a rotating push block connected to the switch knob, wherein the rotating push block is provided with a linkage groove, and the eccentric shaft moves within the range of the linkage groove. Rotating the switch knob drives the eccentric shaft to rotate, and drives the locking rod to rise and fall and abut against or separate from the locking block, so as to realize locking or unlocking action; The base includes a main body and a bracket part assembled on the outer end of the main body, the main body is provided with an axial through hole, the rotating push block is assembled with the switch knob via the axial through hole, the switch knob is exposed and mounted on the bracket part, an inner cavity is formed in the main body and the eccentric wheel structure is mounted in the inner cavity; When the drawer grid is pulled hard, the locking block will be deformed and flattened.

2. The medical cart according to claim 1, characterized in that: The smart safety lock also includes a detection structure, which includes a detection plate and a swing switch arranged on the detection plate. The swing switch moves synchronously with the eccentric wheel structure to detect the locked or unlocked state of the smart safety lock.

3. The medical cart according to claim 1, characterized in that: The locking tongue structure comprises a locking bar, the locking rods are arranged on the locking bar at intervals, a pair of fixing rods are arranged at intervals on the upper end of the locking bar, and the eccentric shaft is accommodated between the two fixing rods.

4. The medical cart according to claim 1, characterized in that: The vehicle body is provided with control buttons and a display screen, wherein the control buttons are used to control the working state of the smart safety lock, and the display screen is used to display the working state of the smart safety lock.

5. The medical cart according to claim 1, characterized in that: The locking block is a sheet metal part.

6. The medical cart according to claim 1, characterized in that: The thickness of the locking block is 1 mm.

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