Gas-liquid discharge panel of hand cleaner
By designing the air-liquid discharge panel of the hand sanitizer, and adopting an inclined U-shaped hand sanitizing port and an asymmetrical air-liquid port design, the problems of poor cleaning effect and unreasonable air duct of the hand sanitizer are solved, achieving more uniform cleaning coverage and structural simplification, and adapting to the needs of different hand shapes.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG HUAXIANG DETECTION TECH CO LTD
- Filing Date
- 2025-05-08
- Publication Date
- 2026-05-08
AI Technical Summary
Existing hand sanitizers have poor cleaning performance, unreasonable air duct design, and cannot effectively cover the curved surface of the hand, especially creating dry blind spots in the finger gaps and palm area. In addition, their complex structure is not suitable for miniaturization requirements.
Design a gas-liquid discharge panel for a hand sanitizer. It adopts an inclined U-shaped hand sanitizing nozzle, with hot air flowing from the bottom to the air outlets on both sides. Combined with asymmetrical liquid spray nozzles, it forms an airflow circulation around the hand. The air outlets are arranged at intervals and their extension lines intersect to adapt to different hand shapes, reduce liquid droplet splashing, reduce wind resistance, and facilitate the replacement of the cleaning liquid container.
It improves the cleaning effect, enhances the evenness of hand coverage, reduces drying blind spots, adapts to different hand shapes, reduces structural complexity and wind resistance, and improves convenience and applicability.
Smart Images

Figure CN224206718U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hand sanitizer technology, specifically to a gas-liquid discharge panel for a hand sanitizer. Background Technology
[0002] With the increasing demands of public health, the convenience and functionality of hand cleaning devices have become an important research direction.
[0003] For example, Chinese utility model patent with announcement number CN221881739U, entitled "A Duct Structure and Cleaning Device", specifically discloses a device including a fan, an air inlet assembly, and an air outlet assembly. The fan has an air inlet end and an air outlet end. The air inlet assembly is provided with an air inlet channel, which is connected to the air inlet end. The air outlet assembly is provided with an air outlet channel, which is connected to the air outlet end. The air outlet channel includes at least three sub-channels, which are connected end to end and arranged in a serpentine pattern, so that the air flowing into and out of the air outlet channel changes direction repeatedly under the guidance of the at least three sub-channels.
[0004] The above scheme extends the length of airflow within the limited space of the air outlet channel, meaning that the airflow can flow through more parts of the entire air outlet channel space, so as to make full use of the internal space of the air outlet channel to extend the effective air outlet length.
[0005] However, in actual use, since the above solutions mostly adopt a single-sided direct blowing or symmetrical air outlet design, the airflow cannot effectively cover the curved surface of the hand, especially in the finger gaps and palm area, which are prone to dry blind spots. In addition, the structure is complex and is suitable for cleaning equipment, but cannot meet the miniaturization requirements of hand sanitizers.
[0006] Therefore, a gas-liquid discharge panel for a hand sanitizer is proposed to solve the aforementioned problems. Utility Model Content
[0007] Technical problems to be solved
[0008] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a gas-liquid discharge panel for a hand sanitizer, which can effectively solve the problems of poor cleaning effect and unreasonable air duct design in the existing hand sanitizer.
[0009] Technical solution
[0010] To achieve the above objectives, this utility model provides the following technical solution:
[0011] This utility model provides a gas-liquid discharge panel for a hand sanitizer, including a housing. The upper end of the housing is provided with a hand sanitizing port for inserting a hand, and the cross-section of the hand sanitizing port is U-shaped with the opening tilted upward. On both sides inside the hand sanitizing port, there are spray nozzles for spraying out cleaning liquid and air outlets for blowing out hot air.
[0012] The housing contains a fan with its outlet located at the bottom of the hand sanitizing port. Hot air flows from the bottom of the hand sanitizing port and is then diverted through the air ducts on both sides of the hand sanitizing port to the outlets on both sides for discharge.
[0013] Furthermore, the liquid spray nozzle is located below the air outlet on the same side.
[0014] Furthermore, the air outlet consists of several air outlets arranged at intervals along one side of the handwashing opening.
[0015] Furthermore, the extended lines of the air vents on both sides of the handwashing port intersect.
[0016] Furthermore, the air vents of the handwashing ports on both sides are inclined downwards towards the central axis of the handwashing ports.
[0017] Furthermore, the air vents on both sides of the handwashing port are located at the ends of the air ducts behind the handwashing port.
[0018] Furthermore, the plane height of the air vent on one side is higher than the plane height of the air vent on the other side.
[0019] Furthermore, the liquid spray nozzles on both sides are at the same plane height.
[0020] Furthermore, the liquid spray nozzles on both sides are arranged asymmetrically.
[0021] Furthermore, the housing is provided with a nozzle that communicates with the spray nozzle, and the nozzle is detachably connected to a container for holding hand sanitizer.
[0022] Beneficial effects
[0023] The technical solution provided by this utility model, compared with the known public technology, has the following advantages:
[0024] Beneficial effects:
[0025] This invention utilizes a hot air self-cleaning system that diverts hot air from the bottom of the hand opening upwards, and discharges it through air ducts on both sides from the air outlet, forming an airflow circulation around the hand. The spray nozzle is located below the air outlet to prevent liquid droplets from splashing and to improve the utilization rate of the cleaning solution.
[0026] Furthermore, the air vents are spaced out and their extended lines intersect, causing the airflow to converge at the center of the hand, enhancing the uniformity of coverage. At the same time, the asymmetrical arrangement of the air vents on both sides allows for adjustment of the airflow angle according to left- or right-handed habits.
[0027] The hand sanitizing nozzle features an inclined U-shaped cross-section, which conforms to the natural angle at which hands are inserted, reducing the risk of contact with contaminants.
[0028] The integrated air duct design eliminates the need for a deflector, reducing air resistance, and the nozzle is detachably connected to the hand sanitizer container for easy replacement and cleaning. Attached Figure Description
[0029] 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 these drawings without creative effort.
[0030] Figure 1 This is a schematic diagram of the overall structure in an embodiment of the present utility model;
[0031] Figure 2 This is a side view of the handwashing and mouth cleaning structure in an embodiment of the present utility model;
[0032] Figure 3 This is a bird's-eye view of the overall structure in an embodiment of this utility model;
[0033] Figure 4 This is a schematic cross-sectional view of the overall structure in an embodiment of the present utility model;
[0034] Figure 5 This is a side sectional view of the overall structure in an embodiment of the present utility model;
[0035] Figure 6 As an embodiment of this utility model Figure 5 Schematic diagram of the structure at point A in the middle.
[0036] The numbers in the diagram represent: 1. Housing; 10. Hand sanitizing port; 11. Liquid spray port; 12. Air outlet; 121. Air vent; 13. Hand sensor unit; 14. Pipe opening; 2. Fan. Detailed Implementation
[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0038] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0039] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above, diagonally above, or on the surface of the second feature, indicating that the second feature is supported and fixed by the first feature, or simply indicating that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicating that the first feature is at a lower horizontal level than the second feature.
[0040] In the description of this embodiment, the terms "upper," "lower," "left," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.
[0041] The present invention will be further described below with reference to the embodiments.
[0042] Example:
[0043] This solution proposes a gas-liquid discharge panel for a hand sanitizer, as shown in the attached document. Figure 1-6 The gas-liquid discharge panel of the hand sanitizer in this embodiment mainly includes a housing 1, which adopts a vertical design, such as... Figure 1 As shown, the housing 1 is a cuboid structure made of stainless steel. The interior of the housing 1 is hollow to accommodate the air duct and the liquid spraying system. A hand opening 10 is provided at the top of the housing, with a U-shaped cross-section that is inclined at 30°. The inclined design avoids the hand from touching the inner wall. The inclination angle simulates the bending arc of a human hand when it is naturally inserted, preventing the user's back of hand or fingers from touching the inner wall and causing secondary contamination. This forms an operating channel for hand insertion. A hand sensing unit 13 capable of detecting hand insertion is installed in the operating channel.
[0044] The inner walls on both sides of the hand sanitizing port are respectively provided with a spray nozzle 11 and an air outlet 12. The spray nozzle 11 is located directly below the air outlet 12 on the same side. Gravity is used to reduce the scattering of liquid droplets and reduce the risk of the cleaning liquid being blown away by the airflow, while ensuring that the liquid accurately covers the surface of the hand.
[0045] The fan 2 is fixed inside the housing 1, with its air outlet facing the bottom of the hand sanitizing port 10 and the air outlet of the fan 2 facing the central area at the bottom of the hand sanitizing port 10.
[0046] As hot air flows upward from the bottom, it is evenly distributed to the left and right air ducts through the internal U-shaped diversion. The internal air ducts are made of high-temperature resistant PC plastic to ensure balanced airflow distribution on both sides. Due to the overall inclined arrangement of the air ducts, the paths are asymmetrical. The overall height of the left air duct is 5 mm higher than that of the right air duct, forming a stepped airflow channel. The airflow speed on the left is slower to cover the back of the hand area, while the high-speed airflow on the right is concentrated on the palm and between the fingers.
[0047] The air outlets 12 are connected to the ends of the air ducts on both sides. The air outlets 12 are composed of several air vents 121, which are arranged at equal intervals along the long side of the hand cleaning opening 10. The axes of all air vents 121 are inclined downwards towards the central axis of the hand cleaning opening 10, and their extensions converge directly above the center of the hand cleaning opening, forming an airflow convergence point around the hand.
[0048] It should be noted that the installation plane of the left air vent 121 is slightly higher than that of the right side, forming a stepped airflow channel. The airflow on the left (higher) side covers the back of the hand area, while the high-speed airflow on the right side directly hits the palm and between the fingers.
[0049] The inner wall of the air duct is covered with a 2 mm thick PE insulation layer. A dense grille is installed at the outlet of air vent 121. The grille is inclined at the corresponding hole of air vent 121. Due to the small spacing, the airflow diffusion angle is very small, avoiding noise caused by turbulence.
[0050] In addition, the spray nozzle 11 adopts an asymmetrical layout, with the left spray nozzle being lower than the right nozzle, to accommodate different hand shapes.
[0051] The spray nozzle is connected to the port 14 on the side of the housing 1 via a silicone hose. The port 14 has a threaded or snap-fit structure that matches the threaded interface of the hand sanitizer bottle, allowing for quick disassembly.
[0052] When in use, after the hand is inserted into the hand sanitizing inlet 10, the hand sensing unit 13 triggers the spray nozzle 11 to spray a certain amount of hand sanitizer, and the fan 2 is then started. The heated air enters the air ducts on both sides from the bottom and is blown out from the air outlet 121.
[0053] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.
Claims
1. A gas-liquid discharge panel for a hand sanitizer, characterized in that, The device includes a housing (1), the upper end of which is provided with a hand-cleaning port (10) for inserting a hand. The cross-section of the hand-cleaning port (10) is U-shaped with the opening tilted upward. On both sides inside the hand-cleaning port (10) are respectively provided a spray nozzle (11) for spraying out cleaning liquid and an air outlet (12) for blowing out hot air. A fan (2) is provided inside the housing (1). The air outlet of the fan (2) is located at the bottom of the hand-cleaning port (10). Hot air flows from the bottom of the hand-cleaning port (10) and is diverted to the air outlets (12) on both sides through the air ducts behind the sides of the hand-cleaning port (10).
2. The gas-liquid discharge panel of a hand sanitizer according to claim 1, characterized in that, The spray nozzle (11) is located below the air outlet (12) on the same side.
3. The gas-liquid discharge panel of a hand sanitizer according to claim 1, characterized in that, The air outlet (12) consists of several air outlets (121) arranged at intervals along one side of the handwashing opening (10).
4. The gas-liquid discharge panel of a hand sanitizer according to claim 3, characterized in that, The extension lines of the air vents (121) on both sides of the handwashing opening (10) intersect.
5. The gas-liquid discharge panel of a hand sanitizer according to claim 4, characterized in that, The air vents (121) of the handwashing ports (10) on both sides are inclined downward toward the central axis of the handwashing ports (10).
6. The gas-liquid discharge panel of a hand sanitizer according to claim 4, characterized in that, The air vents (121) on both sides of the handwashing opening (10) are located at the ends of the air ducts behind the handwashing opening (10).
7. The gas-liquid discharge panel of a hand sanitizer according to claim 4, characterized in that, The plane height of one of the air vents (121) is higher than that of the other air vent (121).
8. The gas-liquid discharge panel of a hand sanitizer according to claim 1, characterized in that, The liquid spray nozzles (11) on both sides are at the same plane height.
9. The gas-liquid discharge panel of a hand sanitizer according to claim 1, characterized in that, The spray nozzles (11) on both sides are asymmetrically arranged.
10. The gas-liquid discharge panel of a hand sanitizer according to claim 1, characterized in that, The housing (1) is provided with a pipe (14) that communicates with the spray nozzle (11), and the pipe (14) is detachably connected to a container for holding hand sanitizer.
Citation Information
Patent Citations
Air duct structure and cleaning device
CN221881739U