Nursing tool disinfection device for nursing

Abstract

The nursing tool disinfection device comprises a shell, a cover plate, a disinfection drying device and a control panel, the cover plate is hinged to the top of the shell, one half of the cover plate is fixedly connected with the shell, and the other half of the cover plate is of an openable structure; the disinfecting and drying device comprises a driving assembly, a plurality of placing grooves, a disinfecting water tank, a disinfecting assembly and a drying assembly, and the driving assembly is rotatably arranged at the inner bottom of the shell; the multiple containing grooves are fixedly connected with the driving assembly and synchronously rotate along with the driving assembly. Therefore, through the rotation and revolution combined motion of the placing groove, the instruments are exposed to the disinfection and drying assembly in multiple angles, surface gaps are covered, blind areas are eliminated, dual modes are adjusted according to pollution degrees, a slight mode single-side spraying liquid saving function is achieved, a severe mode double-side high-pressure sterilization function is achieved, a control panel integrates functions, the whole process is automatically completed after the modes are selected, manual intervention is reduced, and the working efficiency is improved. The detachable structure is convenient to clean and maintain, key parts are corrosion-resistant, and the service life of equipment is prolonged.

Description

Technical Field

[0001] This application relates to the technical field of medical device disinfection, and particularly to a disinfection device for nursing tools used in nursing care. Background Art

[0002] In the field of medical care, the disinfection treatment of nursing tools is an important link to ensure medical safety. Most existing disinfection devices use static immersion or ultraviolet irradiation methods, which have the following defects:

[0003] 1. Uneven disinfection: Traditional devices cannot achieve multi-angle coverage of instruments, resulting in disinfectant or ultraviolet light being difficult to reach the dead corners of the instruments, and the disinfection effect is unstable.

[0004] 2. Single function: Most devices only have a single function of disinfection or drying, and need to be operated step by step, with low efficiency and easy to cause secondary pollution.

[0005] 3. Low degree of automation: Manually controlling disinfection parameters (such as time, intensity) is prone to operation errors, and the disinfection mode cannot be adjusted according to the degree of instrument contamination.

[0006] 4. Complex structure: Some rotary disinfection devices have redundant transmission mechanisms, are difficult to maintain, and lack a waste liquid collection design, which is easy to cause internal contamination of the device.

[0007] To solve the above problems, the present invention provides a disinfection device that realizes the combined rotation and revolution of the placement groove through a driving component, can adjust the disinfection intensity, and optimizes the drainage structure, so as to improve the disinfection efficiency and comprehensiveness and meet the diverse needs of clinical nursing. Summary of the Invention

[0008] This application aims to solve at least one of the technical problems in the related art to some extent.

[0009] For this reason, the first object of this application is to provide a disinfection device for nursing tools used in nursing care. Through the combined rotational and revolutionary movements of the placement groove, the instruments are exposed to disinfectant and hot air at multiple angles during rotation. Combining the set disinfection nozzles and drying nozzles, the surfaces and gaps of the instruments are completely covered, eliminating disinfection blind spots and improving the reliability of sterilization.

[0010] The second object of this application is to provide a disinfection device for nursing tools used in nursing care, which provides two modes of "mild disinfection" and "severe disinfection", automatically adjusts the disinfection intensity according to the degree of contamination, reduces the consumption of disinfectant by single-side spraying in the mild mode; in the severe mode, bilateral high-pressure spraying ensures deep sterilization and avoids waste of resources.

[0011] The third object of the present application is to provide a disinfection device for nursing tools, where the control panel integrates disinfection and drying functions. After the user selects a mode, the whole process can be automatically completed, significantly reducing the complexity of manual intervention, and is especially suitable for high-load medical environments.

[0012] The fourth object of the present application is to provide a disinfection device for nursing tools, with a detachable water receiving tray, snap-on nozzle, and sealed liquid filling port design, facilitating quick cleaning and component replacement. The key components are made of corrosion-resistant materials, extending the equipment life and reducing long-term maintenance costs.

[0013] To achieve the above object, an embodiment of the first aspect of the present application provides a disinfection device for nursing tools, including a housing, a cover plate, a disinfection and drying device, and a control panel. Among them, the cover plate is hinged to the top of the housing, and half of the cover plate is fixedly connected to the housing, and the other half is a switchable structure; the disinfection and drying device includes a driving component, a plurality of placement grooves, a disinfection water tank, a disinfection component, and a drying component. Among them, the driving component is rotatably arranged at the bottom inside the housing; the plurality of placement grooves are fixedly connected to the driving component and rotate synchronously with it; the disinfection water tank is fixed to one side of the top of the cover plate; the disinfection component is arranged on the side wall of the housing and is connected to the disinfection water tank through a pipeline; the drying component is arranged on the side wall of the housing; the control panel is fixed to the top of the cover plate and is electrically connected to the driving component, the disinfection component, and the drying component.

[0014] The disinfection device for nursing tools according to the embodiment of the present application, through the combined rotation and revolution movement of the placement grooves, the instruments are exposed to the disinfection and drying components at multiple angles, covering the surface gaps and eliminating blind spots. The dual modes are adjusted according to the degree of contamination. The mild mode sprays on one side to save liquid, and the severe mode performs bilateral high-pressure sterilization. The control panel integrates functions, and the whole process can be automatically completed after the mode is selected, reducing manual intervention. The detachable structure facilitates cleaning and maintenance, and the key components are corrosion-resistant, extending the equipment life.

[0015] In addition, the disinfection device for nursing tools proposed above according to the present application may also have the following additional technical features:

[0016] In an embodiment of the present application, the driving component includes a driving motor, a first bevel gear, a rotating shaft rod, a second bevel gear, a rotating disk, a toothed groove ring, and a plurality of rotating gears. Among them, the driving motor is fixed to the bottom inside the housing; the first bevel gear is connected to the output end of the driving motor; the rotating shaft rod is vertically rotatably arranged at the bottom of the housing, and a second bevel gear meshing with the first bevel gear is fixed to its lower end; the rotating disk is fixed to the top of the rotating shaft rod; the toothed groove ring is fixed to the inner wall of the housing; the plurality of rotating gears are rotatably arranged on the periphery of the rotating disk and mesh with the toothed groove ring; the plurality of placement grooves are respectively fixed to the respective rotating gears and rotate around the rotating shaft rod with the rotation of the rotating gears.

[0017] In one embodiment of the present application, the disinfection component includes a water pump and two disinfection sprayer rods. Among them, the water pump is arranged on the top of the disinfection water tank and is communicated with the disinfection water tank; the two disinfection sprayer rods are arranged on the side wall of the housing, and each disinfection sprayer rod is provided with a plurality of spraying ports facing the placement groove.

[0018] In one embodiment of the present application, the drying component includes a drying machine case and two drying sprayer rods. Among them, the drying machine case is fixed on the outer wall of the housing; the two drying sprayer rods are fixedly arranged on the side wall of the housing and are communicated with the drying machine case, and each drying sprayer rod is provided with a plurality of drying ports facing the placement groove.

[0019] In one embodiment of the present application, the control panel is built-in with a PLC controller, which is electrically connected to the drive motor, the water pump and the drying machine case respectively. The PLC controller is configured to: control the opening and closing of the water pump and the opening number of the disinfection sprayer rods according to the selection of the disinfection mode; in the mild disinfection mode, only one disinfection sprayer rod is opened; in the severe disinfection mode, two disinfection sprayer rods are opened simultaneously.

[0020] In one embodiment of the present application, a liquid adding port is arranged on the top of the disinfection water tank, and the liquid adding port is closed by an openable and closable sealing cover.

[0021] In one embodiment of the present application, a water receiving tray is arranged below the rotating disc, a drainage through hole is arranged on the side wall of the placement groove, and a water collecting groove is arranged at the bottom. The water collecting groove is communicated with the water receiving tray through a pipeline.

[0022] The advantages of the present application compared with the existing technology are as follows:

[0023] (1) Through the compound movement of the rotation and revolution of the placement groove, the instruments are exposed to the disinfectant solution and hot air at multiple angles during the rotation process. Combining the set disinfection nozzles and drying nozzles, the surfaces and gaps of the instruments are thoroughly covered, eliminating the disinfection blind spots and improving the sterilization reliability.

[0024] (2) Provide two modes of "mild disinfection" and "severe disinfection", automatically adjust the disinfection intensity according to the degree of contamination, reduce the consumption of disinfectant solution by single-side spraying in the mild mode; ensure deep sterilization by double-side high-pressure spraying in the severe mode, avoiding waste of resources.

[0025] (3) The control panel integrates the functions of disinfection and drying. After the user selects the mode, the whole process operation is automatically completed, significantly reducing the complexity of manual intervention, especially suitable for high-load medical environments.

[0026] (4) The detachable water receiving tray, snap-on nozzles and sealed liquid adding port design are convenient for quick cleaning and component replacement. The key components are made of corrosion-resistant materials, extending the service life of the equipment and reducing the long-term maintenance cost.

[0027] Additional aspects and advantages of the present application will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present application. Description of the Drawings

[0028] The above-mentioned and / or additional aspects and advantages of the present application will become apparent and be readily understood from the following description of the embodiments in conjunction with the drawings, wherein:

[0029] Figure 1 is a perspective view of a disinfection device for nursing tools according to an embodiment of the present application;

[0030] Figure 2 is a schematic cross-sectional structure view of a disinfection device for nursing tools according to an embodiment of the present application;

[0031] Figure 3 is a schematic cross-sectional structure view of a disinfection device for nursing tools according to another embodiment of the present application;

[0032] Figure 4 is a front view of the schematic cross-sectional structure of a disinfection device for nursing tools according to an embodiment of the present application;

[0033] Figure 5 is a schematic control connection diagram of a disinfection device for nursing tools according to an embodiment of the present application.

[0034] As shown in the figure: 1. Housing; 2. Cover plate; 3. Disinfection and drying device; 4. Control panel; 31. Driving assembly; 32. Placing groove; 33. Disinfection water tank; 34. Disinfection assembly; 35. Drying assembly; 311. Driving motor; 312. First helical gear; 313. Rotating shaft rod; 314. Second helical gear; 315. Rotating disk; 316. Tooth groove ring; 317. Rotating gear; 341. Water pump; 342. Disinfection spray head rod; 3421. Medicine spraying port; 351. Drying machine box; 352. Drying spray head rod; 3521. Drying port; 41. PLC controller; 331. Liquid adding port; 318. Water receiving tray; 321. Drainage through hole; 322. Water collecting tank. Detailed Description of the Embodiments

[0035] Embodiments of the present application will be described in detail below. Examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present application, and should not be construed as limiting the present application. On the contrary, the embodiments of the present application include all changes, modifications, and equivalents falling within the spirit and scope of the appended claims.

[0036] The following describes a disinfection device for nursing tools in an embodiment of the present application with reference to the accompanying drawings.

[0037] As Figures 1 - 5 shown, a disinfection device for nursing tools in an embodiment of the present application may include a housing 1, a cover plate 2, a disinfection and drying device 3, and a control panel 4.

[0038] It can be understood that the housing 1 is a cylindrical frame structure made of corrosion-resistant stainless steel, with a sealed disinfection chamber formed inside. The cover plate 2 is hinged to the front edge of the top of the housing 1 through a hinge, where the left half is welded and fixed to the left edge of the top of the housing 1, and the right half is an openable and closable structure, which is hermetically connected to the housing 1 through a magnetic latch. When opened, it can be turned upwards to expose the internal space of the housing 1, facilitating the placement and removal of nursing tools.

[0039] Turn upwards the openable and closable right half of the cover plate 2, and vertically insert the nursing tools to be disinfected (such as forceps, syringes) into the placement groove 32. The tool handle is caught by the limiting convex rib to ensure stability during rotation. Close the cover plate 2, and the magnetic latch automatically adsorbs to form a sealed space inside the housing 1.

[0040] Select the disinfection mode through the control panel 4, press the start button, and the control circuit sends a signal to the drive assembly 31 to drive the drive assembly 31 to rotate clockwise at a set speed, thereby driving all the placement grooves 32 to rotate synchronously around the central axis of the housing 1.

[0041] While the drive assembly 31 is rotating, the control panel 4 sends a start signal to the disinfection assembly 34, extracts the disinfectant from the disinfection water tank 33, transports it through the pipeline to the disinfection assembly 34 on the side wall of the housing 1, and sprays it in a mist form from the fine holes on the pipe body. Since the placement groove 32 continuously rotates with the drive assembly 31, the surface of the nursing tool constantly changes its angle, ensuring that the disinfectant evenly covers all parts of the tool.

[0042] After the disinfection program is completed, the control panel 4 starts the drying assembly 35 according to the user's setting. After the external drying fan heats the air, it blows the hot air into the interior of the housing 1 through the pipeline of the drying assembly 35 on the front and rear side walls of the housing 1. The hot air circulates and flows with the rotation of the placement groove 32, accelerating the evaporation of the moisture on the surface of the tool.

[0043] After drying is completed, the drive assembly 31 stops rotating, open the openable and closable right half of the cover plate 2, and take out the disinfected and dried nursing tools.

[0044] In an embodiment of the present application, as Figures 1 - 5 shown, the drive assembly 31 includes a drive motor 311, a first bevel gear 312, a rotating shaft rod 313, a second bevel gear 314, a rotating disk 315, a toothed groove ring 316, and a plurality of rotating gears 317.

[0045] It is understandable that the driving motor 311 adopts a waterproof low-speed motor, which is vertically fixed to the inner bottom of the housing 1 through an L-shaped bracket and bolts, and its rotation speed is adjusted by the control panel 4 (preset 5 - 8 rpm).

[0046] The first helical gear 312 is press-fitted and sleeved on the top end of the output shaft of the driving motor 311, rotates synchronously with the motor, has 20 teeth, and a module of 2.

[0047] The rotating shaft rod 313 is a stainless steel solid rod with a diameter of 20 mm, is vertically installed in the bearing seat at the center of the bottom of the housing 1 through a deep groove ball bearing, can rotate freely 360° around its own axis, and its lower end extends 5 mm below the bottom of the housing 1.

[0048] The second helical gear 314 is fixedly sleeved on the lower end of the rotating shaft rod 313, has 30 teeth, a module of 2, and is inclined at 45° to mesh with the first helical gear 312, converting the horizontal rotation of the motor into the vertical rotation of the rotating shaft rod 313.

[0049] The rotating disk 315 is a circular metal disk with a diameter of 200 mm, is welded and fixed to the top end of the rotating shaft rod 313 through a bushing at the center of the top, rotates synchronously with the rotating shaft rod 313, and 12 arc-shaped rotating grooves (groove width 30 mm, depth 15 mm) are evenly arranged on the peripheral edge of the disk body.

[0050] The tooth groove ring 316 is an annular metal part with an inner diameter of 300 mm, is fixed to the upper middle part of the inner wall of the housing 1 through bolts, and an involute tooth groove (tooth pitch 5 mm) meshing with the rotating gear 317 is machined on its inner ring surface.

[0051] There are 12 rotating gears 317 in total, all of which are cylindrical gears with an outer diameter of 30 mm. They are respectively installed in the arc-shaped rotating grooves on the peripheral edge of the rotating disk 315 through bearings. The outer teeth of the gears mesh with the inner ring tooth grooves of the tooth groove ring 316, and the inner shaft holes are hinged to the bottom of the rotating grooves through pin shafts and can rotate freely in the rotating grooves.

[0052] The placement grooves 32 correspond one-to-one with the rotating gears 317, are fixed to the center of the top surface of the rotating gears 317 through bolts at the bottom, and move synchronously with the rotating gears 317.

[0053] Detailed working process:

[0054] When the control panel 4 sends a start signal, the driving motor 311 starts to operate, driving the first helical gear 312 to rotate clockwise. Through the meshing transmission of the helical gears, the second helical gear 314 is driven to rotate counterclockwise (because the rotation directions of the helical gears are opposite), and then drives the rotating shaft rod 313 and the rotating disk 315 fixed to its top end to revolve counterclockwise around the central axis of the housing 1, forming a circular motion trajectory centered on the rotating shaft rod 313. The revolution speed is precisely controlled by the motor speed (for example, the revolution speed is 5 rpm in the mild disinfection mode and 8 rpm in the severe mode).

[0055] When the rotating disk 315 revolves around the axis, the rotating gear 317 on the periphery moves synchronously with the disk body. Since the tooth groove ring 316 is fixed to the inner wall of the housing 1, the outer teeth of the rotating gear 317 continuously mesh with the inner ring tooth grooves of the tooth groove ring 316. When the rotating disk 315 revolves counterclockwise around the axis, due to the reaction force of the tooth groove ring 316, the rotating gear 317 is forced to rotate clockwise within the rotating groove of the rotating disk 315 (the rotation directions of gear meshing are opposite). The self-rotation speed is determined by the tooth number ratio between the tooth groove ring 316 and the rotating gear 317 (in this example, the inner diameter of the tooth groove ring is 300 mm corresponding to about 80 teeth, the outer diameter of the rotating gear is 30 mm corresponding to about 6 teeth, and the self-rotation speed is about 8.3 times the revolution speed).

[0056] Each placement groove 32 is fixed to the top surface of the rotating gear 317 and synchronously performs two kinds of motions:

[0057] Revolution: It makes a circular motion around the rotating shaft rod 313 with the rotating disk 315, so that the placement groove 32 forms a circular trajectory with a radius of 100 mm within the housing 1;

[0058] Self-rotation: It rotates clockwise around its own axis with the rotating gear 317, and rotates about 8.3 circles per revolution.

[0059] This compound motion enables the surface of the nursing tools in the placement groove 32 to continuously change its orientation. For example, complex structures such as the jaws of forceps and the threaded interfaces of syringes can be exposed to the spraying range of the disinfection nozzle rod 342 and the hot air path of the drying nozzle rod 352 without dead angles during the disinfection process, completely eliminating the blind area problem of static disinfection.

[0060] A radial clearance of 0.5 mm is reserved between the rotating gear 317 and the rotating groove of the rotating disk 315, which not only allows the gear to rotate freely but also prevents the gear from axially moving through the limiting flanges on both sides of the rotating groove;

[0061] In an embodiment of the present application, as Figures 1 - 5 shown, the disinfection assembly 34 includes a water pump 341 and two disinfection nozzle rods 342.

[0062] It can be understood that the water pump 341 is a corrosion-resistant centrifugal pump (model: WILO-SBP 20 / 1), which is fixed to the center of the top of the disinfection water tank 33 by bolts. The water inlet is connected to the inside of the disinfection water tank 33 through a sealed hose, and the water outlet is connected to the input end of the disinfection nozzle rod 342 through a pressure-resistant PVC pipe. The rated flow rate is 100 mL / min and the head is 1.5 m, meeting the working requirements of the two nozzles simultaneously.

[0063] There are two disinfection sprayer rods 342, and each sprayer rod is a stainless steel pipe with a diameter of 15 mm. The two ends are fixed to the side wall by bolts. Along the axial direction of the pipe body, 8 medicine spraying ports 3421 are evenly distributed, and the distance between adjacent spraying ports is 30 mm. The spraying ports face inward and form an angle of 45° with the horizontal plane (facing the center of the revolution track of the placement groove 32), ensuring that the spraying range covers the rotating placement groove.

[0064] The water outlet of the water pump 341 is divided into two branch pipes through a tee joint, which are respectively connected to the input ends of the left and right disinfection sprayer rods 342. Electromagnetic control valves (not shown in the figure, controlled by the control panel 4) are provided on the branch pipes, and any sprayer rod can be opened individually or simultaneously.

[0065] Detailed Explanation of the Working Process

[0066] When the control panel 4 sends a disinfection instruction, the water pump 341 is powered on and starts. The impeller rotates to generate negative pressure, sucking the disinfectant liquid in the disinfection water tank 33 into the pump body through the inlet hose, and discharging it from the water outlet after being pressurized by the impeller. The pressure is maintained at 0.2 MPa (ensuring the atomization effect at the spraying ports). At this time:

[0067] Slight Disinfection Mode: Only open the electromagnetic control valve of the left or right sprayer rod (for example, the left side). The disinfectant liquid enters the corresponding sprayer rod 342 through a single-way branch pipe and sprays out in a fan-shaped mist from the 8 spraying ports 3421 on this side (the atomization particle diameter is 50 - 100 μm), and the coverage angle is about 60°. It mainly targets the left half area of the revolution track of the placement groove 32.

[0068] Severe Disinfection Mode: Open the electromagnetic control valves of both sprayer rods simultaneously. The disinfectant liquid enters the left and right sprayer rods in two ways, and the spraying ports on both sides spray synchronously, forming a 120° cross-coverage area, ensuring that during the revolution and rotation of the placement groove 32, the entire 360° circumferential range is covered by the disinfectant mist, especially for supplementary spraying of the dead corner areas of the instruments facing away from the single spray head.

[0069] Since the placement groove 32 revolves and rotates at 5 - 8 rpm with the drive assembly 31, the 45° inclined design of the spraying ports 3421 makes its spraying range accurately match the movement track of the placement groove:

[0070] During the rotation process, the angle of the instrument itself is constantly changing, ensuring that the nozzles can spray into complex structures such as the gaps between tweezers and the threads of syringes.

[0071] The aperture of the spraying port is designed to be 1 mm, and the distance between adjacent ports is 30 mm. After actual measurement, the coverage radius of a single spray head can reach 200 mm, and the overlapping coverage range of two spray heads can cover the entire area with an inner diameter of 300 mm of the shell body, without any spraying blind spots.

[0072] In an embodiment of the present application, as Figures 1 - 5 shown, the drying assembly 35 includes a drying machine case 351 and two drying sprayer rods 352.

[0073] It is understandable that the drying box 351 is a rectangular metal box (dimensions: 300 mm × 200 mm × 150 mm), which is fixed to the middle part of the outer side of the rear wall of the housing 1 by bolts. The inner cavity of the box is divided into a heating area and a blowing area:

[0074] Heating area: Two groups of ceramic heating rods (each with a power of 500 W) are built in and arranged in parallel at the upper part inside the box, and the temperature is controlled at 50 - 70 °C (adjustable) by a thermostat (not shown);

[0075] Blowing area: An axial flow fan (model: EBMPAPST W2E250 - AA03 - 01) is installed at the bottom, with an air volume of 150 m 3 / h, and the heated air is pressed into the air supply pipeline through the top air outlet.

[0076] There are two drying nozzle rods 352 in total, which are installed at the middle parts of the front and rear side walls of the housing 1 (vertically offset by 50 mm from the disinfection nozzle rod 342). Each single rod is an aluminum alloy pipe with a diameter of 20 mm, and the length is the same as the width of the inner cavity of the housing (such as 300 mm). Both ends are fixed to the side wall by bolts. 10 drying ports 3521 are evenly distributed along the axis of the pipe body, with a distance of 25 mm between adjacent drying ports, and the inner diameter of the drying port is 5 mm, facing inward and forming an angle of 30° with the horizontal plane (slanting downward towards the revolution track of the placing groove 32), ensuring that the hot air covers the top and side of the instrument.

[0077] The top air outlet of the drying box 351 is connected to the air inlet of the rear wall of the housing 1 through a high - temperature resistant silicone hose (inner diameter 30 mm). The air inlet is divided into two branch pipes through a tee joint and is respectively connected to the input ends of the front and rear drying nozzle rods 352. The length of the branch pipe is 50 mm, and it is sealed and connected by a clamp, which can withstand a high temperature of 70 °C.

[0078] Detailed working process

[0079] When the disinfection program ends (or the user manually selects the "drying" function), the control panel 4 sends a start signal to the drying box 351:

[0080] The axial flow fan starts first and runs in an unloaded state for 10 seconds to remove the residual disinfectant vapor in the pipeline;

[0081] Subsequently, the ceramic heating rods are powered on for heating. The thermostat monitors the temperature inside the box in real - time. When the temperature reaches the preset value (such as 60 °C), the heating rods switch to the heat - preservation mode (the power drops to 200 W) to ensure the stability of the output hot - air temperature.

[0082] Hot - air distribution and spraying

[0083] Stable hot air (temperature 60°C ± 5°C, wind speed 3 - 5 m / s) enters the drying nozzle rod 352 through the branch pipe and blows out fan-shaped from each drying port 3521:

[0084] The 30° inclined design of the drying port enables the hot air to cover the top of the instruments in the placement groove (such as the piston of a syringe) and blow along the side of the instrument to the bottom (such as the tip of forceps). Combined with the revolution (5 - 8 rpm) and rotation of the placement groove 32, each area on the surface of the instrument contacts the hot air once every 2 seconds, accelerating the evaporation of moisture.

[0085] The drying program runs by default for 30 minutes. During this period, the driving component 31 rotates continuously to ensure that the hot air blows without dead angles.

[0086] In an embodiment of the present application, as Figures 1 - 5 shown, the control panel 4 is built-in with a PLC controller 41, which is electrically connected to the driving motor 311, the water pump 341, and the drying machine case 351 respectively. The PLC controller 41 is configured to: control the opening and closing of the water pump 341 and the number of opened disinfection nozzle rods 342 according to the selection of the disinfection mode; in the mild disinfection mode, only one disinfection nozzle rod 342 is opened; in the severe disinfection mode, two disinfection nozzle rods 342 are opened simultaneously.

[0087] It can be understood that the PLC controller 41 adopts the Siemens S7-200 SMART series (model: CPU ST20), is fixed on the internal circuit board of the control panel 4, has 8 digital inputs and 6 relay outputs, supports the Modbus RTU communication protocol, and is electrically connected to the following components through wires respectively:

[0088] The driving motor 311 is connected to the Q0.0 output terminal of the PLC controller 41, and the motor speed is controlled by a pulse signal (adjustable from 5 - 8 rpm);

[0089] The water pump 341 is connected to the Q0.1 output terminal, and the start / stop and variable frequency speed regulation of the water pump are controlled by a relay (flow rate 50 - 80 mL / min);

[0090] The drying machine case 351 is connected to the Q0.2 output terminal to control the on / off of the heating rod and the start / stop of the fan;

[0091] The electromagnetic control valves of the left and right nozzle rods of the disinfection nozzle rod 342 are respectively connected to the Q0.3 and Q0.4 output terminals to realize independent control of single / double nozzles.

[0092] Human-machine interface: On the surface of the control panel 4, there are:

[0093] Mode selection buttons: Two lighted buttons ("Mild disinfection" green, "Severe disinfection" red), connected to the I 0.0 and I 0.1 input terminals;

[0094] Status indicator lights: Three LED lights ("Power" in blue, "Running" in yellow, "Fault" in red), connected to the output terminals Q0.5 - Q0.7;

[0095] Emergency stop switch: A red mushroom head button, connected to the input terminal I 0.2, cutting off all power supplies in case of emergency.

[0096] When the user presses the "Light disinfection" or "Heavy disinfection" button, the corresponding input terminals I0.0 or I 0.1 trigger a high - level signal:

[0097] Light disinfection mode: The PLC controller 41 outputs a high level to Q0.3 (opening the solenoid valve of the left spray head rod), Q0.4 remains low (the right side is closed), and at the same time sends a 5 rpm speed command (pulse frequency 100 Hz) to the drive motor 311, and the water pump 341 is frequency - converted to 50 mL / min;

[0098] Heavy disinfection mode: Q0.3 and Q0.4 output high levels simultaneously (both spray head rods are opened), the speed of the drive motor is increased to 8 rpm (pulse frequency 160 Hz), and the water pump flow rate is adjusted to 80 mL / min.

[0099] The mode button indicator lights (green / red) are lit, and the "Running light" flashes to display the current working status.

[0100] The PLC controller 41 realizes staged control through the built - in timers T37 / T38:

[0101] 0 - 1 minute: The drive motor 311 starts before the water pump 341 to ensure that the placement tank 32 enters a stable rotation state before spraying, avoiding the accumulation of disinfectant;

[0102] 1 - 10 / 15 minutes: The water pump 341 runs continuously, and the spray head rod opens according to the mode. During this period, the encoder signal of the drive motor is read every 2 minutes. If the speed deviation > ±5%, the pulse frequency is automatically adjusted for compensation;

[0103] 1 minute before the end: The PLC controller 41 sends a stop signal to the water pump 341, and uses the residual disinfectant in the pipeline to complete the last spraying to reduce waste.

[0104] After the disinfection program ends (the timer times out), the PLC controller 41 performs the following operations:

[0105] Turn off the water pump 341 and the solenoid valves of the spray head rod (Q0.1 - Q0.4 are reset), and the drive motor 311 continues to run at the current speed (ensuring uniform drying);

[0106] Send a start signal to the drying box 351: first turn on the fan (the heating rod is powered on after 3 seconds) to prevent the heating rod from dry burning. The temperature sensor (connected to AI0.1) feeds back data in real time, and the hot air temperature is stabilized at 60°C ± 2°C through the PID algorithm;

[0107] During the drying process, if the humidity sensor (connected to AI0.2) detects that the humidity inside the housing 1 < 10%, the heating rod is turned off 5 minutes in advance (the fan continues to run until the end of 30 minutes).

[0108] In an embodiment of the present application, as Figures 1 - 5 shown, a liquid filling port 331 is provided at the top of the disinfection water tank 33, and the liquid filling port 331 is closed by an openable and closable sealing cover.

[0109] It can be understood that the liquid filling port 331 is a circular opening with a diameter of 50 mm, and an external thread (pitch 2 mm) is provided at the edge. A stainless steel filter screen (aperture 1 mm) is built-in 50 mm below the opening for filtering impurities in the disinfectant.

[0110] The sealing cover is a circular end cover matching the liquid filling port 331. An internal thread is provided on the inner wall. A silica gel sealing ring with a diameter of 30 mm (thickness 2 mm) is embedded in the center of the cover body, and a cylindrical handle with anti-slip lines is provided on the cover top for easy tightening or unscrewing.

[0111] In an embodiment of the present application, as Figures 1 - 5 shown, a water receiving tray 318 is provided below the rotating disk 315. A drain through hole 321 is provided on the side wall of the placement groove 32, and a water collecting groove 322 is provided at the bottom. The water collecting groove 322 is communicated with the water receiving tray 318 through a pipeline.

[0112] It can be understood that during the disinfection process, the sprayed disinfectant and the residual liquid on the surface of the instrument flow to the water collecting groove 322 at the bottom of the groove body through the drain through hole 321 on the side wall of the placement groove 32 (using gravity and centrifugal force); the liquid is directly discharged into the lower water receiving tray 318 through the connecting hose. The waste liquid collected by the water receiving tray 318 is discharged into the waste liquid bucket outside the housing 1 through the bottom sewage outlet, or after the disinfection is completed, the water receiving tray is quickly pulled out by removing the removal plate at the lower end of the housing 1, and directly poured and rinsed.

[0113] The position of the drain through hole 321 is higher than that of the water collecting groove 322, ensuring that during the drying stage of the placement groove 32, the residual moisture can be evaporated by hot air, and the liquid waste liquid is only discharged through the bottom water collecting groove, avoiding the interference of gas-liquid mixture on the drying efficiency.

[0114] It should be noted that the control method of the present application can be automatically controlled by a controller. The control method of the controller can be realized by simple programming by those skilled in the art, which belongs to the common knowledge in the art. And the present application mainly protects the mechanical structure, so the control method and circuit connection of the present application will not be explained in detail.

[0115] Specifically, the specific usage process during actual execution:

[0116] 1. Tool placement and device startup

[0117] Flip the openable right half of the cover plate 2 upwards, and vertically insert nursing tools such as forceps and syringes to be disinfected into the placement groove 32 at the top of the rotating gear 317. The tool handle is snapped into the limiting rib in the groove. Close the cover plate 2, and the magnetic latch automatically adsorbs, forming a sealed disinfection chamber inside the housing 1. Press the "slight disinfection" or "severe disinfection" button through the control panel 4. After receiving the signal, the PLC controller 41 sends a startup instruction to the drive motor 311.

[0118] 2. Operation of the drive assembly 31 and compound movement of the tool

[0119] After the drive motor 311 starts, the output shaft drives the first bevel gear 312 to rotate clockwise. Through meshing with the second bevel gear 314, the horizontal rotation is converted into the vertical counterclockwise rotation of the rotating shaft rod 313, and then drives the turntable 315 to revolve synchronously (5 rpm in the slight mode and 8 rpm in the severe mode). The 12 rotating gears 317 on the periphery of the turntable 315 mesh with the tooth groove ring 316 fixed to the inner wall of the housing 1, and rotate clockwise while revolving (the rotation speed is about 8.3 times that of the revolution), so that the tools in the placement groove 32 form a compound movement trajectory of "revolution + rotation", ensuring that all regions on the surface continuously change their orientations.

[0120] 3. Spraying operation of the disinfection assembly 34

[0121] After the drive assembly 31 rotates for 10 seconds, the control panel 4 sends a startup signal to the water pump 341. The water pump extracts the disinfectant from the disinfection water tank 33 (added through the top liquid filling port 331) and transports it to the left and right disinfection sprayer rods 342 through the tee branch pipe:

[0122] Slight disinfection: Only open the electromagnetic control valve of the single-sided sprayer rod, and the disinfectant is atomized and sprayed out at a 45° angle from 8 spraying ports 3421 (particle diameter 50 - 100 μm), covering the left half area of the tool;

[0123] Severe disinfection: Both sides of the sprayer rod are opened simultaneously, and cross-spraying at 120° covers the entire circumference of the tool. Combined with the rotation of the tool, it ensures that complex structures such as the gaps between forceps and the threads of syringes are in contact with the disinfectant without dead ends.

[0124] 4. Hot air drying of the drying assembly 35

[0125] After the disinfection process ends (10 minutes / 15 minutes), the PLC controller 41 shuts down the water pump 341 and starts the drying box 351: the axial flow fan runs for 10 seconds to purge the pipeline first, and then the ceramic heating rod heats up to 60 °C. The hot air blows out at a 30° angle through the drying ports 3521 of the front and rear drying nozzle rods 352, covering the top and sides of the tool. The driving assembly 31 rotates continuously for 30 minutes to evenly purge the surface of the tool with hot air until the humidity sensor detects that the humidity inside the housing 1 is <10%. The heating rod is turned off 5 minutes in advance (the fan runs until the end).

[0126] 5. End Operation and Maintenance

[0127] After drying is completed, the driving motor 311 stops rotating, and the cover plate 2 is opened to take out the tool. The water receiving tray 318 under the rotating disk 315 has collected the disinfection waste liquid through the bottom water collection tank 322 of the placement groove 32 and the connecting pipeline. It can be cleaned by disassembling the sewage valve at the bottom of the housing 1 or directly pulling out the water receiving tray and pouring it, ensuring that the device is clean before the next use.

[0128] In summary, a disinfection device for nursing tools in the embodiments of the present application, through the compound movement of the rotation and revolution of the placement groove, the instruments are exposed to the disinfection and drying components at multiple angles, covering the surface gaps, eliminating blind spots, adjusting in dual modes according to the degree of contamination, saving liquid with single-side spraying in the mild mode, and performing double-side high-pressure sterilization in the severe mode. The control panel integrates functions, and after selecting the mode, the whole process is automatically completed, reducing manual intervention. The detachable structure is convenient for cleaning and maintenance, and the key components are corrosion-resistant, extending the service life of the equipment.

[0129] In the description of this specification, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of these features. In the description of the present application, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0130] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0131] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present application. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present application.

Claims

1. A disinfection device for nursing tools used in nursing, characterized in that, It includes a housing (1), a cover plate (2), a disinfection and drying device (3), and a control panel (4). Among them, the cover plate (2) is hinged to the top of the housing (1), and half of the cover plate (2) is fixedly connected to the housing (1), and the other half is a structure that can be opened and closed; the disinfection and drying device (3) includes a driving assembly (31), a plurality of placement slots (32), a disinfection water tank (33), a disinfection assembly (34), and a drying assembly (35). Among them, the driving assembly (31) is rotatably arranged at the inner bottom of the housing (1); a plurality of the placement slots (32) are fixedly connected to the driving assembly (31) and rotate synchronously with it; the disinfection water tank (33) is fixed to one side of the top of the cover plate (2); the disinfection assembly (34) is arranged on the side wall of the housing (1) and is connected to the disinfection water tank (33) through a pipeline; the drying assembly (35) is arranged on the side wall of the housing (1); the control panel (4) is fixed to the top of the cover plate (2) and is electrically connected to the driving assembly (31), the disinfection assembly (34), and the drying assembly (35).

2. The disinfection device for a nursing tool according to claim 1, characterized in that, The driving assembly (31) includes a driving motor (311), a first bevel gear (312), a rotating shaft rod (313), a second bevel gear (314), a rotating disk (315), a toothed groove ring (316), and a plurality of rotating gears (317). Among them, the driving motor (311) is fixed to the inner bottom of the housing (1); the first bevel gear (312) is connected to the output end of the driving motor (311); the rotating shaft rod (313) is vertically rotatably arranged at the bottom of the housing (1), and a second bevel gear (314) meshing with the first bevel gear (312) is fixed to its lower end; the rotating disk (315) is fixed to the top of the rotating shaft rod (313); the toothed groove ring (316) is fixed to the inner wall of the housing (1); a plurality of rotating gears (317) are rotatably arranged on the periphery of the rotating disk (315) and mesh with the toothed groove ring (316); a plurality of the placement slots (32) are respectively fixed to the rotating gears (317) and rotate around the rotating shaft rod (313) with the rotation of the rotating gears (317).

3. A disinfection device for a nursing tool according to claim 1, characterized in that, The disinfection assembly (34) includes a water pump (341) and two disinfection sprayer rods (342). Among them, the water pump (341) is arranged on the top of the disinfection water tank (33) and is communicated with the disinfection water tank (33); two disinfection sprayer rods (342) are arranged on the side wall of the housing (1), and a plurality of spraying ports (3421) facing the placement slots (32) are arranged on each disinfection sprayer rod (342).

4. A disinfection device for a nursing tool according to claim 1, characterized in that, The drying assembly (35) includes a drying machine box (351) and two drying sprayer rods (352). Among them, the drying machine box (351) is fixed to the outer wall of the housing (1); two drying sprayer rods (352) are fixedly arranged on the side wall of the housing (1) and are communicated with the drying machine box (351), and a plurality of drying ports (3521) facing the placement slots (32) are arranged on each drying sprayer rod (352).

5. A disinfection device for a nursing tool according to any one of claims 1-4, characterized in that, The built-in PLC controller (41) of the control panel (4) is electrically connected to the drive motor (311), the water pump (341), and the drying cabinet (351) respectively, and the PLC controller (41) is configured to: Control the opening and closing of the water pump (341) and the number of opened disinfection spray head rods (342) according to the selection of the disinfection mode; In the mild disinfection mode, only one disinfection spray head rod (342) is opened; In the severe disinfection mode, two disinfection spray head rods (342) are opened simultaneously.

6. The disinfection device for nursing tools according to claim 1, characterized in that, A liquid filling port (331) is provided at the top of the disinfection water tank (33), and the liquid filling port (331) is closed by a closable sealing cover.

7. A disinfection device for a nursing tool according to claim 2, characterized in that, A water receiving tray (318) is provided below the rotating disk (315). A drain through hole (321) is provided on the side wall of the placement groove (32), and a water collecting groove (322) is provided at the bottom. The water collecting groove (322) is communicated with the water receiving tray (318) through a pipeline.

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