Domestic health care sterilizing device

By designing a household disinfection device with a detachable nozzle assembly and a transparent liquid storage container embedded in the bottom of the handle, the problems of fixed nozzle structure and unreasonable center of gravity are solved, achieving efficient disinfection of narrow gaps and comfortable operation for long-term use.

CN224540647UActive Publication Date: 2026-07-24SHANGHAI LAZY CAT CARE SERVICE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI LAZY CAT CARE SERVICE CO LTD
Filing Date
2025-08-01
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

The fixed nozzle structure of existing household disinfection devices leads to blind spots in disinfection of crevices, unreasonable center of gravity distribution causes operator fatigue, makes it difficult to effectively disinfect narrow crevices, and reduces disinfection efficiency when used for a long time.

Method used

The design incorporates three detachable nozzle components (wide-angle coverage nozzle, ultra-fine slit nozzle, and omnidirectional flexible nozzle) and a transparent liquid reservoir embedded in the bottom of the handle. Combined with the curved handle and detachable counterweight, it achieves efficient disinfection of crevices and dynamic calibration of the center of gravity.

Benefits of technology

It improved the disinfection coverage of crevices, reduced operator fatigue, and enhanced the work efficiency and user experience of domestic service workers.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a kind of health care disinfection device for housekeeping, it is related to housekeeping health care equipment technical field, including gun body, handle being arc design and being provided with wave-shaped antiskid texture on surface, replaceable spray head assembly, transparent liquid storage container, pedestal and built-in air pump and controller etc.;Spray head assembly includes wide-angle coverage spray head, extremely fine gap spray head and universal bending spray head, can be replaced by thread structure disassembly, can accurately disinfect in complex positions such as narrow gap, arc hidden area etc.;Transparent liquid storage container is embedded in pedestal, adopts rear-mounted design and is combined with detachable counterweight, balance the gravity center under different liquid capacity state;The device solves the disinfection dead angle problem of traditional equipment by modular spray head design, reduces operation fatigue by using rear-mounted liquid storage and gravity center balance structure, realizes efficient and accurate disinfection for multiple scenes such as family, mother and baby, pet etc., significantly improves the efficiency and user experience of housekeeping disinfection.
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Description

Technical Field

[0001] This utility model relates to the field of household hygiene and health care equipment technology, and in particular to a household hygiene and health care disinfection device. Background Technology

[0002] As an important part of modern life, domestic services directly affect the health and safety of family members through cleaning the living environment, maintaining items, and managing hygiene. With the public's increasing awareness of hygiene and epidemic prevention, disinfection has become one of the core aspects of domestic services, covering the sterilization of frequently touched items such as furniture surfaces, children's toys, kitchen and bathroom appliances, and pet supplies.

[0003] In this context, disinfection guns, due to their portability and flexible operation, have become one of the most commonly used disinfection tools in housekeeping services, and are widely used in specific scenarios such as daily cleaning, maternal and infant care, and pet cleaning. Disinfection guns mainly use a built-in pump to atomize and spray chemical agents such as chlorine-containing disinfectant, alcohol, or hypochlorous acid water. They rely on the oxidizing properties of the agents to destroy the structure of microorganisms and are suitable for disinfection of various hard surfaces.

[0004] While the aforementioned equipment can meet basic disinfection needs, it still has the following shortcomings in practical applications of domestic services:

[0005] 1) Fixed nozzle structure leads to blind spots in the disinfection of gaps: Existing equipment generally adopts an integrated design of cavity and nozzle, with a large nozzle size and fixed nozzle angle, which makes it difficult to penetrate into narrow gaps with a width of <15mm. For example, when disinfecting refrigerator sealing strips, traditional nozzles are too large to fit the grooves of the strips, so the disinfectant can only be sprayed onto the surface, and the bacteria inside the grooves cannot be effectively killed.

[0006] 2) Unreasonable center of gravity distribution leads to operator fatigue: Most products place the solution bottle in the front half of the gun body, close to the nozzle end, which causes the overall center of gravity to shift forward. When holding it for a long time, the wrist needs to exert continuous force to maintain balance, which can easily cause muscle strain and reduce disinfection efficiency due to operator fatigue.

[0007] Therefore, there is an urgent need to develop a household hygiene and disinfection device to solve the problems mentioned above. Utility Model Content

[0008] The purpose of this utility model is to provide a household hygiene and disinfection device to solve the problems mentioned in the background art.

[0009] To achieve the above objectives, the present invention adopts the following technical solution: a household hygiene and disinfection device, comprising a gun body, characterized in that: a handle is connected to the lower rear side of the gun body; a replaceable nozzle assembly is installed at the left end of the gun body; a power button is provided at the right end of the gun body; a control switch is installed on the upper part of the handle near the nozzle assembly; a base is installed at the bottom of the handle; a transparent liquid storage container is embedded in the base near the nozzle assembly; a charging port is provided at the lower part of the base away from the transparent liquid storage container; an air pump and a controller are installed inside the gun body; and a distance sensor is installed at the front end of the gun body.

[0010] The nozzle assembly includes a fixing sleeve, which is fixedly installed on the front end of the gun body. The fixing sleeve is detachably connected to a first nozzle, a second nozzle, and a third nozzle through a threaded structure.

[0011] Preferably, the handle has an arc-shaped design, the surface of the handle has a wave-shaped anti-slip texture, the first nozzle is a wide-angle coverage nozzle with an atomization angle of 60°, the second nozzle is an ultra-fine slit nozzle with a diameter of 8mm and a 30° pointed cone shape at the front end, and the third nozzle is a universal bending nozzle with a built-in memory metal flexible tube.

[0012] Preferably, a lithium battery is installed inside the base near the charging port, the charging port is electrically connected to the lithium battery, and the upper sides of the transparent liquid storage container are provided with anti-slip textures. The transparent liquid storage container is adapted to the groove on the base by a buckle structure, and the buckle surface is provided with concave and convex textures.

[0013] Preferably, the controller is electrically connected to the distance sensor, control switch, air pump and power button respectively. The controller has a built-in image recognition algorithm module. The center of gravity of the handle is located 1cm behind the central axis of the grip. The center of gravity of the transparent liquid storage container is 3cm away from the center of the grip. The handle has a built-in detachable counterweight.

[0014] Preferably, the front end of the third nozzle is provided with a red laser positioning module, which projects a light spot with a diameter of 2mm. The projection trajectory of the light spot can be automatically adjusted as the nozzle angle changes, and is used to indicate the center point of the liquid spray.

[0015] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0016] 1. This utility model is designed with three detachable nozzle components: a wide-angle coverage nozzle, an ultra-fine slit nozzle, and an omnidirectional curved nozzle, which improves the disinfection coverage of crevices and overcomes the problem of "disinfection dead corners" in traditional equipment. It is especially suitable for complex scenarios such as crevices in baby products and folds at the edges of pet beds.

[0017] 2. This utility model embeds a transparent liquid storage container into the base at the bottom of the handle, shortening the center of gravity distance from the handle center to 3cm. Dynamic center of gravity calibration is achieved through the wave-shaped anti-slip texture of the arc-shaped handle and the detachable counterweight, effectively solving the fatigue problem of long-term operation. It is especially suitable for the high-frequency and high-intensity disinfection needs of domestic service personnel, significantly improving work efficiency and user experience. Attached Figure Description

[0018] Figure 1 One of the perspective views of a household hygiene and disinfection device is provided for this utility model;

[0019] Figure 2 This utility model provides a perspective view of the installation of the first nozzle in a household hygiene and disinfection device;

[0020] Figure 3 This utility model provides a perspective view of the installation of a second nozzle in a household hygiene and disinfection device;

[0021] Figure 4 This utility model provides a perspective view of the installation of a third nozzle in a household hygiene and disinfection device;

[0022] Figure 5 This utility model provides a schematic diagram showing the controller of a household hygiene and disinfection device electrically connected to a distance sensor, a control switch, and an air pump.

[0023] Legend: 1. Gun body; 2. Handle; 3. Nozzle assembly; 301. Fixing sleeve; 302. First nozzle; 303. Second nozzle; 304. Third nozzle; 4. Power button; 5. Control switch; 6. Transparent liquid storage container; 7. Charging port; 8. Base; 9. Air pump; 10. Controller; 11. Distance sensor. Detailed Implementation

[0024] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention can also be implemented in other ways than those described herein, and therefore the present invention is not limited to the specific embodiments disclosed in the following specification.

[0026] Please see Figures 1-5A household hygiene and disinfection device includes a gun body 1, a handle 2 connected to the lower rear side of the gun body 1, a replaceable nozzle assembly 3 installed at the left end of the gun body 1, a power button 4 at the right end of the gun body 1, a control switch 5 installed on the upper part of the handle 2 near the nozzle assembly 3, a base 8 installed at the bottom of the handle 2, a transparent liquid storage container 6 embedded in the side of the base 8 near the nozzle assembly 3, and a charging port 7 located at the lower part of the side of the base 8 away from the transparent liquid storage container 6. An air pump 9 and a controller 10 are installed inside the gun body 1, and a distance sensor 11 is installed at the front end of the gun body 1. The nozzle assembly 3 includes a fixing sleeve 301, which is fixedly installed at the front end of the gun body 1. A first nozzle 302, a second nozzle 303, and a third nozzle 304 are detachably connected inside the fixing sleeve 301 through a threaded structure.

[0027] It should be noted that the handle 2 has an arc-shaped design, and the surface of the handle 2 is made of a wave-shaped anti-slip texture to fit the natural curvature of the palm. When holding it, a pressure-reducing groove is set at the web of the hand.

[0028] Furthermore, the first nozzle 302 is a wide-angle coverage nozzle with an atomization angle of 60°, suitable for large-area flat disinfection; the second nozzle 303 is an ultra-fine slit nozzle with a diameter of 8mm and a 30° pointed tip, suitable for narrow spaces with a width of ≤15mm; the third nozzle 304 is a universal bending nozzle with a built-in memory metal flexible tube, which can achieve 0-90° bending adjustment and fixed angle, adapting to curved concealed areas; the front end of the third nozzle 304 is equipped with a red laser positioning module, which projects a light spot with a diameter of 2mm. The projection trajectory of the light spot can be automatically adjusted with the change of nozzle angle to indicate the center point of the liquid spray.

[0029] Furthermore, a lithium battery is installed inside the base 8 near the charging port 7, and the charging port 7 is electrically connected to the lithium battery for charging the lithium battery.

[0030] Furthermore, the upper sides of the transparent liquid storage container 6 are provided with anti-slip textures. The transparent liquid storage container 6 is adapted to the groove on the base 8 through a buckle structure. The buckle surface is provided with concave and convex textures to enhance friction.

[0031] Furthermore, the controller 10 is electrically connected to the distance sensor 11, the control switch 5, the air pump 9, and the power button 4. The controller 10 has a built-in image recognition algorithm module, which is used to automatically adjust the spray mode and angle of the nozzle assembly 3 according to the data detected by the distance sensor 11.

[0032] Furthermore, the center of gravity of the handle 2 is located 1cm behind the central axis of the grip, the center of gravity of the transparent liquid storage container 6 is 3cm away from the center of the grip, and the handle 2 has a built-in detachable counterweight to balance the center of gravity of the device under different liquid volumes.

[0033] Please see Figures 1-5 The working principle of the entire device during specific use is as follows: Step 1, device start-up and initialization stage: The user presses the power button 4 on the right end of the gun body 1. The lithium battery in the base 8 supplies power to the controller 10, air pump 9, distance sensor 11 and other modules, and the device enters the standby state. At this time, the transparent liquid storage container 6 is installed in place, and the fixing sleeve 301 is locked with the threaded interface at the front end of the gun body. The type of nozzle currently installed is determined, either the first nozzle 302, the second nozzle 303 or the third nozzle 304. If the counterweight built into the handle 2 does not match the current liquid storage volume, the controller prompts the user to adjust the center of gravity by removing the counterweight to ensure that the center of gravity balance point 1cm behind the handle center axis is stable.

[0034] Step Two: Scene Adaptation and Mode Selection: For large-area flat disinfection, such as living room floors, install the first nozzle. The air pump 9 operates at medium power to break the disinfectant into fine particles for even coverage. For disinfection of narrow gaps, such as drawer slides with a width ≤15mm, replace with the second nozzle. The disinfectant penetration depth can reach 5cm. For curved, concealed areas, such as refrigerator rubber seal grooves, use the third nozzle. The nozzle is bent to the target angle via a memory metal flexible tube, which can be fixed at any angle from 0-90°. The front-end red laser positioning module projects a 2mm light spot to indicate the spray center point in real time. The user sprays the target point using the control switch 5.

[0035] Step 3, Precise Disinfection Stage: The disinfectant in the storage container 6 flows into the gun body through the flexible infusion tube. The air pump 9 generates air pressure to drive the liquid into the nozzle assembly 3. Different nozzles achieve differentiated atomization. The controller 10 has a built-in image recognition algorithm module to analyze the coverage area of ​​the liquid. If the coverage rate is less than 80%, such as the base of the folds of a plush toy not being completely wetted, the gun body vibrates to remind the user to re-spray.

[0036] Step 4, Ergonomics and Safety Protection Stage: The wavy anti-slip texture of the curved handle 2 conforms to the curve of the palm, and the pressure-reducing groove at the base of the thumb reduces grip stress; the rear-mounted liquid storage container works in conjunction with the gun body, so that even when the bottle is full, the center of gravity remains 1cm behind the handle's central axis, which meets ergonomic standards; after disinfection, the controller 10 shuts off the air pump after a 5-second delay to ensure that the remaining liquid in the infusion tube is drained; the anti-slip texture of the transparent liquid storage container 6 makes it easy for users to disassemble and clean, preventing residual medicine from deteriorating.

[0037] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the technical solution of this utility model shall still fall within the protection scope of this utility model.

Claims

1. A household health care disinfection device, comprising a gun body (1), characterized in that: A handle (2) is connected to the rear side below the gun body (1). A replaceable nozzle assembly (3) is installed at the left end of the gun body (1). A power button (4) is provided at the right end of the gun body (1). A control switch (5) is installed on the upper part of the handle (2) near one side of the nozzle assembly (3). A base (8) is installed at the bottom of the handle (2). A transparent liquid storage container (6) is embedded on one side of the base (8) near the nozzle assembly (3). A charging port (7) is provided at the lower part on the side of the base (8) away from the transparent liquid storage container (6). An air pump (9) and a controller (10) are installed inside the gun body (1). A distance sensor (11) is installed at the front end of the gun body (1); The nozzle assembly (3) includes a fixed sleeve (301). The fixed sleeve (301) is fixedly installed at the front end of the gun body (1). A first nozzle (302), a second nozzle (303), and a third nozzle (304) are respectively detachably connected inside the fixed sleeve (301) through a threaded structure.

2. The household health care disinfection device according to claim 1, wherein: The handle (2) is designed in an arc shape, and the surface of the handle (2) has a wavy anti-slip texture.

3. A household health care disinfection device according to claim 1, characterized in that: The first nozzle (302) is a wide-angle coverage nozzle with an atomization angle of 60°. The second nozzle (303) is an extremely fine slit nozzle with a diameter of 8 mm and a 30° pointed cone shape at the front end. The third nozzle (304) is a universal bending nozzle with a built-in shape memory metal hose.

4. A household health care disinfection device according to claim 1, characterized in that: [[ID= 5. A household health care disinfection device according to claim 1, characterized in that: ​ 6. The household health care disinfection device according to claim 1, wherein: ​ 7. A household health care disinfection device according to claim 1, characterized in that: ​ 8. A household health care disinfection device according to claim 1, characterized in that: ​