Hospital hygiene disinfection device
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- THE FIRST AFFILIATED HOSPITAL OF GUANGXI MEDICAL UNIVERSITY
- Filing Date
- 2025-07-31
- Publication Date
- 2026-07-21
AI Technical Summary
Existing hospital push-type sterilizers have limited effectiveness in eliminating bacteria and viruses in the air during the sterilization process, making it difficult to meet the needs of hospital environmental hygiene.
Design a hospital hygiene and disinfection device that combines a spray assembly and a disinfection assembly. Disinfectant is sprayed through spray heads on a movable frame, while a dual-axis drive motor drives a cleaning brush and a centrifugal fan to achieve dual disinfection of the ground and air. A disinfection filter is used for air filtration, and the dual-axis drive motor is set inside the disinfection air duct to avoid overheating.
It achieves dual disinfection of the hospital environment, improves hospital hygiene conditions, has a simple structure, is easy to assemble and maintain, avoids overheating failure of the drive motor, and has stable performance.
Smart Images

Figure CN224523654U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hospital hygiene and cleaning equipment technology, and in particular to a hospital hygiene and disinfection device. Background Technology
[0002] Hospitals are the front line of infectious disease surveillance and control. A good hospital hygiene environment can effectively prevent infection, reduce patients' need for additional anti-infective treatment, prolonged hospital stays, and management of complications, thereby saving valuable medical resources and reducing overall medical costs. Therefore, how to effectively clean and disinfect public areas within hospitals has become an increasingly important issue.
[0003] Chinese Utility Model Patent Application No. 202010523101.2 discloses a push-type sterilizer for hospital public health. This application, through a rational design of the device's movement mechanism, enables the device to automatically expand and contract during sterilization, thereby achieving large-area sterilization in a single operation and increasing work efficiency. However, while this push-type sterilizer can sterilize a large area of the ground, its effectiveness in eliminating airborne bacteria and viruses is relatively limited. In other words, the sterilization method of the push-type sterilizer is relatively limited, and its effect cannot adequately meet the hygiene needs of hospitals. Utility Model Content
[0004] The main purpose of this invention is to provide a hospital hygiene and disinfection device, which aims to disinfect the ground and air in the environment simultaneously, thereby improving the environmental hygiene conditions of the hospital.
[0005] To achieve the above objectives, the hospital hygiene and disinfection device proposed in this utility model includes: Mobile rack; A spray assembly includes a liquid storage tank mounted on the movable frame and a plurality of spray heads, wherein the plurality of spray heads are connected to the liquid storage tank via pipelines; and The disinfection assembly includes a disinfection box, a dual-axis drive motor, at least one disinfection filter, a centrifugal impeller, and a cleaning brush. The disinfection box is mounted on the movable frame and forms a disinfection air duct with an air inlet and an air outlet connecting the disinfection air duct. The disinfection filter is placed over the air inlet. The dual-axis drive motor is mounted inside the disinfection air duct and has a first output shaft and a second output shaft. The first output shaft extends toward the lower part of the movable frame and out of the disinfection air duct. The cleaning brush is driven to the first output shaft and is located downstream of the plurality of spray heads. The centrifugal impeller is driven to the second output shaft.
[0006] In an optional embodiment, the disinfection assembly further includes an air supply hood, which is mounted on the movable frame and forms an air supply channel communicating with the air outlet. The air outlet of the air supply channel faces the lower part of the movable frame and is located downstream of the cleaning brush.
[0007] In an optional embodiment, the air supply hood includes a negative pressure section and an air expansion section that are connected to each other. The negative pressure section is connected to the air supply channel, and the air expansion section is arranged in the shape of a funnel facing the lower part of the movable frame. The air supply outlet is opened in the air expansion section.
[0008] In an optional embodiment, the disinfection assembly further includes an air guide hood, which covers the upper part of the centrifugal impeller and has an air guide channel that connects the air supply channel and the disinfection air channel.
[0009] In an optional embodiment, the disinfection assembly further includes a gear reduction mechanism that is drively connected to the first output shaft and the cleaning brush.
[0010] In an optional embodiment, the disinfection filter is a HEPA high-efficiency filter.
[0011] In an optional embodiment, the disinfection assembly further includes an elastic damping pad, which is installed inside the disinfection air duct and elastically abuts against the dual-axis drive motor and the disinfection box.
[0012] In an optional embodiment, the spray assembly further includes a spray gun, which is detachably connected to the movable frame and connected to the liquid storage tank via a pipeline.
[0013] In an optional embodiment, the movable frame is provided with a fixing groove, and the spray gun can be partially embedded in the fixing groove.
[0014] In an optional embodiment, the mobile frame includes a frame body, multiple casters, and a push rod. The liquid storage tank and the disinfection box are mounted on the frame body, the multiple casters are spaced apart at the bottom of the frame body, and the push rod is connected to the frame body.
[0015] The hospital hygiene disinfection device of this utility model includes a mobile frame, a liquid storage tank of the spray assembly and multiple spray heads installed on the mobile frame, the multiple spray heads being connected to the liquid storage tank via pipelines, a disinfection box of the disinfection assembly installed on the mobile frame, forming a disinfection air duct and an air inlet and an air outlet connecting to the disinfection air duct, a disinfection filter cover installed at the air inlet, a dual-shaft drive motor installed inside the disinfection air duct, and having a first output shaft and a second output shaft, the first output shaft extending towards the lower part of the mobile frame and extending out of the disinfection air duct, a cleaning brush being driven and connected to the first output shaft and located downstream of the multiple spray heads, and a centrifugal impeller being driven and connected to the second output shaft.
[0016] The hospital's disinfection system works as follows: when disinfecting a specific area of the hospital, the mobile frame can be moved to a preset position. Disinfectant from the storage tank is sprayed onto the floor at that position via spray nozzles. As the frame moves, a cleaning brush downstream of it rotates continuously under the drive of a dual-axis drive motor, cleaning and drying the sprayed floor. Simultaneously, a centrifugal impeller connected to the second output shaft rotates under the drive of the dual-axis drive motor, creating an airflow within the disinfection duct. External air enters the duct through the inlet, is filtered by the disinfection filter, and then exits through the outlet. Thus, the hospital's disinfection system not only disinfects the floor within the preset area but also disinfects the air within that area, achieving dual disinfection of the designated area and improving the hospital's hygiene conditions. In addition, this application uses a dual-axis drive motor to simultaneously drive the cleaning brush and the centrifugal impeller, eliminating the need for separate drive structures. This results in a simpler structure for the hospital hygiene and disinfection device, higher space utilization, and easier assembly and maintenance. The dual-axis drive motor is located inside the disinfection air duct, allowing the filtered airflow to simultaneously remove heat from its surface, thus preventing malfunctions caused by overheating of the dual-axis drive motor. This makes the hospital hygiene and disinfection device more stable in performance. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0018] Figure 1 This is a structural schematic diagram from one perspective of an embodiment of the hospital hygiene and disinfection device of this utility model; Figure 2 for Figure 1 A schematic diagram of the hospital hygiene and disinfection device from another perspective; Figure 3 for Figure 1 The diagram shows a partial exploded view of the hospital's hygiene and disinfection equipment. Figure 4 for Figure 1 A top view of the hospital's hygiene and disinfection equipment shown; Figure 5 for Figure 4 The hospital hygiene and disinfection device shown is a cross-sectional view along the AA direction; Figure 6 for Figure 4 The hospital's hygiene and disinfection device shown is a cross-sectional view along the BB direction.
[0019] Explanation of icon numbers: 100 Hospital hygiene and disinfection equipment 31c air vent 10 Mobile rack 32 Dual-axis drive motor 11 Frame 33 Disinfection filter 11a Fixed groove 34 Centrifugal fan 12 swivel wheels 35 Cleaning brush 13 Assisted push rod 36 Air supply cover 20 Spray assembly 36a Air supply channel 21 Storage tank 361 negative pressure section 22 spray head 362 Ventilation section 23 spray gun 362a air outlet 30 Disinfection components 37 Air guide cover 31 Disinfection box 37a air guide channel 31a Disinfection air duct 38 Gear reduction mechanism 31b air inlet 40 Battery The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.
[0022] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.
[0023] Reference Figures 1 to 5 This utility model proposes a hospital hygiene and disinfection device 100.
[0024] In this embodiment of the utility model, the hospital hygiene disinfection device 100 includes a movable frame 10; a spray assembly 20, including a liquid storage tank 21 installed on the movable frame 10 and a plurality of spray heads 22, wherein the plurality of spray heads 22 are connected to the liquid storage tank 21 via pipelines; and a disinfection assembly 30, including a disinfection box 31, a dual-shaft drive motor 32, at least one disinfection filter 33, a centrifugal impeller 34, and a cleaning brush 35. The disinfection box 31 is installed on the movable frame 10 and forms a disinfection air duct 31a and a connection to the liquid storage tank 21. The disinfection air duct 31a has an air inlet 31b and an air outlet 31c. The disinfection filter 33 is covered by the air inlet 31b. The dual-axis drive motor 32 is installed inside the disinfection air duct 31a and has a first output shaft and a second output shaft. The first output shaft extends toward the lower part of the movable frame 10 and extends out of the disinfection air duct 31a. The cleaning brush 35 is drivenly connected to the first output shaft and is located downstream of the plurality of spray heads 22. The centrifugal impeller 34 is drivenly connected to the second output shaft.
[0025] Specifically, in this embodiment, the mobile frame 10 includes a frame body 11, multiple casters 12, and a push rod 13. The frame body 11 is formed by welding or screwing together metal profiles and sheet metal, and is used to fix and place the spray assembly 20 and the disinfection assembly 30. The multiple casters 12 are fixed to the bottom of the frame body 11 with screws to facilitate the movement of the frame body 11 to a preset position by the staff. In this application, the casters 12 are preferably casters 12 with brakes. The push rod 13 is welded to one side of the frame body 11 to assist the staff in pushing the frame body 11.
[0026] The spray assembly 20 includes a storage tank 21 and multiple spray heads 22. The storage tank 21 includes a tank body and a tank cover. The tank body can be formed from metal or plastic material and has a storage cavity with one open end. This storage cavity is used to store disinfectant, which can be a chlorine-containing disinfectant or an alcohol-based disinfectant, selected according to needs. A fixing bracket adapted to the shape of the tank body is provided on the surface of the frame 11. This fixing bracket is used to limit and fix the tank body to prevent it from shaking or tipping over when the frame 11 is moved. That is, the tank body and the frame 11 are detachably connected, which facilitates the replacement of the tank body and disinfectant by staff, improving disinfection efficiency. The tank cover closes to the opening of the storage cavity and has a through hole communicating with the storage cavity. An external pipe extends into the storage cavity through this through hole and extends to the bottom of the storage cavity. The external pipeline is connected to multiple spray heads 22 via a pump, connecting valve and multiple branch pipes. With the action of the pump, the disinfectant in the storage chamber is sprayed onto the ground through multiple spray heads 22 to disinfect the ground.
[0027] The disinfection box 31 is formed by splicing sheet metal, and is rectangular in shape. It is spaced apart from the liquid storage tank 21. The disinfection box 31 has a shell-shaped cavity structure, forming a disinfection air duct 31a. Multiple air inlets are opened on one side, forming an air inlet 31b. This allows for a more even distribution of air entering the disinfection air duct 31a. The air outlet 31c is connected to the disinfection air duct 31a. A disinfection filter 33 is placed over the air inlet 31b. In this application, there can be one or more disinfection filters 33, that is, multiple disinfection filters 33 are arranged at intervals in the direction of air intake, which can improve the disinfection effect on viruses and bacteria in the air. Meanwhile, the type of disinfection filter 33 can be an activated pre-filter, an activated carbon filter, or a high-efficiency particulate air filter (HEPA). In this application, there is one disinfection filter 33, and a HEPA high-efficiency filter is preferred. This is not only convenient for assembly, but also can effectively remove pollutants such as smoke, dust, and bacteria with a diameter of 0.3 micrometers or larger by setting a HEPA high-efficiency filter, thereby improving the disinfection effect of the air. The dual-axis drive motor 32 is fixed in the disinfection air duct 31a by a screw structure. The dual-axis drive motor 32 has a first output shaft and a second output shaft. The first output shaft extends towards the lower part of the moving frame 10. The lower part of the disinfection box 31 has a through hole that connects to the disinfection air duct 31a. The first output shaft extends out of the disinfection air duct 31a through the through hole. The cleaning brush 35 is driven and connected to the first output shaft and is located downstream of the multiple spray heads 22. The centrifugal impeller 34 is driven and connected to the second output shaft.
[0028] In this application, the cleaning brush 35 consists of a brush base and bristles. The brush base is disc-shaped, and the bristles can be made of absorbent materials such as fabric or sponge. The bristles are connected to the brush base by glue or heat fusion. A connection hole is provided on the upper surface of the brush base, and part of the first output shaft is embedded in the connection hole to connect the dual-axis drive motor 32 and the cleaning brush 35. The cleaning brush 35 is located downstream of the liquid storage tank 21 and multiple spray heads 22. "Downstream" means in the forward direction of the frame 11. The cleaning brush 35 is located behind the spray heads 22. During the actual movement of the frame 11, the spray heads 22 spray disinfectant onto the ground in advance. The cleaning brush 35 rotates under the drive of the first output shaft, and its bristles are in contact with the ground. Therefore, during the rotation, the bristles can wipe the disinfectant off the ground, thus quickly disinfecting the hospital floor.
[0029] The working principle of the hospital hygiene disinfection device 100 is as follows: When disinfecting a specific area of the hospital, the movable frame 10 can be moved to a preset position. The disinfectant in the storage tank 21 is sprayed onto the ground at the preset position through the spray head 22. As the movable frame 10 moves, the cleaning brush 35 located downstream of it rotates continuously under the drive of the dual-axis drive motor 32, cleaning and drying the sprayed ground. At the same time, the centrifugal impeller 34, which is connected to the second output shaft, rotates under the drive of the dual-axis drive motor 32, forming an airflow in the disinfection air duct 31a. That is, external air enters the disinfection air duct 31a through the air inlet 31b, is filtered by the disinfection filter 33, and is then sent out through the air outlet 31c. In this way, the hospital hygiene disinfection device 100 can not only disinfect the ground in the preset area, but also disinfect the air in the area, achieving double disinfection of the designated area and making the hospital's hygiene conditions better. In addition, this application uses a dual-axis drive motor 32 to simultaneously drive the cleaning brush 35 and the centrifugal impeller 34 to rotate, eliminating the need for separate drive structures. This makes the structure of the hospital hygiene disinfection device 100 simpler, with higher space utilization, and easier assembly and maintenance. The dual-axis drive motor 32 is located inside the disinfection air duct 31a, and the disinfection and filtered airflow can simultaneously remove heat from its surface, thereby preventing malfunctions caused by overheating of the dual-axis drive motor 32. This makes the performance of the hospital hygiene disinfection device 100 more stable.
[0030] Please see again Figure 3 , Figure 5 as well as Figure 6 In this embodiment, the air supply hood 36 is formed from a metal sheet profile through processes such as bending, stamping, and welding. The air supply hood 36 includes a negative pressure section 361 and an air expansion section 362 that are connected to each other. The negative pressure section 361 is connected to the air supply channel 36a of the disinfection box 31. The air expansion section 362 is arranged in a funnel shape facing the lower part of the movable frame 10. The cross-sectional area of the negative pressure section 361 is smaller than the cross-sectional area of the air expansion section 362. The air outlet 362a faces the lower part of the movable frame 10 and is located downstream of the cleaning brush 35. That is, in the forward direction of the frame 11, the air outlet 362a is located behind the cleaning brush 35, and the air supply direction is towards the ground. In this application, by setting up this air supply hood 36, the disinfected air can be guided to the disinfected and cleaned ground. While realizing air supply, it accelerates the drying of the ground after spraying and prevents pedestrians from slipping and falling. Furthermore, the negative pressure section 361 of the air supply hood 36 can accelerate the airflow, and the air expansion section 362 can increase the air supply range, thus making the air supply and drying effect of the air supply hood 36 better.
[0031] Furthermore, the disinfection component 30 of this application also includes an air guide hood 37, which is also made of sheet metal. The air guide hood 37 is positioned over the upper part of the centrifugal impeller 34 and forms an air guide channel 37a that connects the air supply channel 36a and the disinfection air channel 31a. In this application, the air guide hood is flared outwards towards the centrifugal impeller 34, which maximizes the collection of airflow and directs the airflow into the air supply channel 36a, thereby improving the efficiency of air supply.
[0032] Please see again Figure 3 and Figure 5 In this application, the disinfection component 30 also includes a gear reduction mechanism 38. The gear reduction mechanism 38 includes at least one input gear and one output gear. The input gear has fewer teeth than the output gear. The output gear is mounted on the first output shaft and connected to the cleaning brush 35. The input gear and output gear mesh. In this application, because the input gear has fewer teeth than the output gear, the rotational speed of the cleaning brush 35 can be reduced while maintaining the rotational speed of the centrifugal impeller 34, thus preventing damage caused by high-speed rotation of the cleaning brush. The working principle of the gear reduction mechanism 38 is a relatively mature existing technology and will not be elaborated upon here. The number of gears in the gear reduction mechanism 38 can be set according to actual needs and is not limited here.
[0033] Furthermore, the disinfection component 30 also includes an elastic damping pad (not shown), which is made of silicone or rubber. In this embodiment, an annular limiting seat is also provided inside the disinfection air duct 31a. The limiting seat is fixed inside the disinfection air duct 31a by screws and is sleeved on the outside of the dual-axis drive motor 32. The elastic damping pad elastically abuts against the limiting seat and the dual-axis drive motor 32. By providing this elastic damping pad, this application can absorb the mechanical vibration generated by the dual-axis drive motor 32 during operation, thereby reducing the noise generated during the disinfection process.
[0034] Please see again Figure 3 and Figure 6 In this application, the spray assembly 20 also includes a spray gun 23, which has the same structure as commercially available household or medical spray guns, i.e., it can spray liquid onto a preset area by generating high pressure. The spray gun 23 is connected to the storage tank 21 via a pipeline, and the frame 11 of the movable frame 10 is provided with a fixing groove 11a, in which the spray gun 23 can be partially embedded. In this application, the spray gun 23 can be used to spray disinfectant in some sanitary dead corners or high positions in the area, thus further expanding the spray range of the disinfectant and improving the disinfection effect of hospital hygiene. At the same time, the fixing groove 11a on the frame 11 can facilitate the removal and placement of the spray gun 23 to a great extent.
[0035] In this application, a battery 40 is also provided in the disinfection air duct 31a. The battery 40 is connected to electrical components such as the dual-shaft drive motor 32 and the pump through an electronic connection wire. The battery 40 can supply power to such electrical components to improve the convenience of using the hospital hygiene disinfection device 100.
[0036] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.
Claims
1. A hospital hygiene disinfecting device, characterized in that, include: Mobile rack; The spray assembly includes a liquid storage tank mounted on the movable frame and a plurality of spray heads, wherein the plurality of spray heads are connected to the liquid storage tank via pipelines; as well as The disinfection assembly includes a disinfection box, a dual-axis drive motor, at least one disinfection filter, a centrifugal impeller, and a cleaning brush. The disinfection box is mounted on the movable frame and forms a disinfection air duct with an air inlet and an air outlet connecting the disinfection air duct. The disinfection filter is placed over the air inlet. The dual-axis drive motor is mounted inside the disinfection air duct and has a first output shaft and a second output shaft. The first output shaft extends toward the lower part of the movable frame and out of the disinfection air duct. The cleaning brush is driven to the first output shaft and is located downstream of the plurality of spray heads. The centrifugal impeller is driven to the second output shaft.
2. The sanitizing device of claim 1, wherein The disinfection assembly also includes an air supply hood, which is installed on the movable frame and forms an air supply channel that communicates with the air outlet. The air outlet of the air supply channel faces the lower part of the movable frame and is located downstream of the cleaning brush.
3. The sanitizing device of claim 2, wherein the sanitizing device is configured to be worn on a belt of the user. The air supply hood includes a negative pressure section and an air expansion section that are connected to each other. The negative pressure section is connected to the air supply channel. The air expansion section is arranged in the shape of a funnel facing the lower part of the movable frame. The air supply outlet is opened in the air expansion section.
4. The sanitizing device of claim 3, wherein the sanitizing device is configured to be worn on a belt of the user. The disinfection assembly also includes an air guide hood, which is placed over the upper part of the centrifugal impeller and has an air guide channel that connects the air supply channel and the disinfection air channel.
5. The sanitizing device of claim 2, wherein the sanitizing device is a hospital hygiene sanitizing device. The disinfection assembly also includes a gear reduction mechanism, which is connected to the first output shaft and the cleaning brush.
6. The sanitizing device of claim 2, wherein the sanitizing device is a hospital hygiene sanitizing device. The disinfection filter is a HEPA high-efficiency filter.
7. The sanitizing device of claim 2, wherein The disinfection component also includes an elastic vibration damping pad, which is installed inside the disinfection air duct and elastically abuts against the dual-axis drive motor and the disinfection box.
8. The sanitization device of any one of claims 1 to 7, wherein, The spray assembly also includes a spray gun, which is detachably connected to the movable frame and connected to the liquid storage tank via a pipeline.
9. The sanitizing device of claim 8, wherein the sanitizing device is a hospital hygiene sanitizing device. The mobile frame is provided with a fixing groove, and the spray gun can be partially embedded in the fixing groove.
10. The hospital hygiene sanitization device of any one of claims 1 to 7, wherein, The mobile frame includes a frame body, multiple casters, and a push rod. The liquid storage tank and the disinfection box are installed on the frame body. The multiple casters are spaced apart at the bottom of the frame body, and the push rod is connected to the frame body.