Air duct structure of hand cleaner

Abstract

The utility model relates to the technical field of hand cleaners, in particular to an air duct structure of a hand cleaner, which comprises a shell, a hand cleaning opening for a hand to extend into is arranged at the upper end of the shell, and the section of the hand cleaning opening is in a U shape with an upward inclined opening. A liquid spraying opening used for spraying out cleaning liquid and an air outlet used for blowing out hot air are formed in the two sides in the hand cleaning opening respectively. Hot air is shunted upwards from the bottom of the hand cleaning opening and discharged from the air outlets through the air ducts on the two sides, airflow circulation surrounding the hand is formed, the liquid spraying opening is located below the air outlets in a matched mode, liquid drop splashing is avoided, and the cleaning liquid utilization rate is increased; the air ports are distributed at intervals, extension lines of the air ports intersect, air flow intersects at the center of the hand, covering uniformity is enhanced, the air ports in the two sides are asymmetrically arranged, and the air flow angle can be adjusted according to the left-hand / right-hand habit; the hand cleaning opening adopts an inclined U-shaped section and fits the natural stretching angle of the hand, so that the risk of contact pollution is reduced.

Description

Technical Field

[0001] This utility model relates to the field of hand sanitizer technology, specifically to an air duct structure 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 new air duct structure for a hand sanitizer is proposed to address 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 an air duct structure 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 duct structure 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 shell is provided with a fan, the air outlet of the fan is arranged at the bottom of the hand-cleaning opening, hot air is distributed from the bottom of the hand-cleaning opening and is distributed to the air outlets on both sides through the air ducts behind the hand-cleaning opening.

[0013] Further, the liquid spraying opening is arranged below the air outlet on the same side.

[0014] Further, the air outlet is composed of a plurality of air outlets arranged at intervals along the side direction of the hand-cleaning opening.

[0015] Further, the extension lines of the air outlets on both sides of the hand-cleaning opening intersect.

[0016] Further, the air outlets on both sides of the hand-cleaning opening are inclined downward to the side direction of the central axis of the hand-cleaning opening.

[0017] Further, the air outlets on both sides of the hand-cleaning opening are arranged at the ends of the air ducts behind the hand-cleaning opening.

[0018] Further, the plane height of the air outlet on one side is higher than the plane height of the air outlet on the other side.

[0019] Further, the plane heights of the liquid spraying openings on both sides are the same.

[0020] Further, the liquid spraying openings on both sides are arranged asymmetrically.

[0021] Further, the shell is provided with a tube opening in communication with the liquid spraying opening, and the tube opening is detachably matched with a container for placing hand-washing liquid.

[0022] Beneficial effects

[0023] Compared with the known prior art, the technical scheme provided by the utility model has the following advantages

[0024] Beneficial effects:

[0025] The utility model discloses a hand-cleaning opening, which is arranged in the shell, and the hot air is distributed from the bottom of the hand-cleaning opening and is distributed to the air outlets on both sides through the air ducts behind the hand-cleaning opening.

[0026] And the air outlets are arranged at intervals and the extension lines intersect, the air flow intersects at the center of the hand, the covering uniformity is enhanced, and the air flow angle can be adjusted according to the left-hand / right-hand habit through the asymmetric arrangement of the air outlets on both sides.

[0027] The hand-cleaning opening adopts an inclined U-shaped section, which fits the natural stretching angle of the hand and reduces the risk of contact pollution.

[0028] The guide plate is not needed by the integrated air duct design, the air resistance is reduced, and the pipe opening is detachably connected with the hand sanitizer container, so that the hand sanitizer container is convenient to replace and clean. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0030] Figure 1 The overall structure schematic diagram in the embodiment of the present application is shown in the figure.

[0031] Figure 2 The net hand opening structure side view schematic diagram in the embodiment of the present application is shown in the figure.

[0032] Figure 3 The bird's eye view schematic diagram of the overall structure in the embodiment of the present application is shown in the figure.

[0033] Figure 4 The overall cross-sectional structure schematic diagram in the embodiment of the present application is shown in the figure.

[0034] Figure 5 The overall structure side view cross-sectional schematic diagram in the embodiment of the present application is shown in the figure.

[0035] Figure 6 The structure schematic diagram in the embodiment of the present application is shown in the figure. Figure 5 The structure schematic diagram in the embodiment of the present application is shown in the figure.

[0036] The numbers in the figure respectively represent: 1, shell; 10, net hand opening; 11, liquid spraying opening; 12, air outlet; 121, air opening; 13, hand induction unit; 14, pipe opening; 2, fan. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, but not all the embodiments.

[0038] In the description of the utility model, unless another definite provision and limitation, the term "connect", "connection", "fixed" should be broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrated;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium, can be two elements inside the communication or two element interaction relationship.For the ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0039] In the utility model, unless another definite provision and limitation, the first feature is "on" or "under" the second feature can include the first and second features direct contact, also can include the first and second features are not direct contact but contact through the additional features between them.Moreover, the first feature is "on", "above" and "on" the second feature includes the first feature is directly above, obliquely above, surface, the second feature is supported by the first feature or just indicates that the first feature horizontal height is higher than the second feature.The first feature is "under", "below" and "under" the second feature includes the first feature is directly below and obliquely below the second feature, or just indicates that the first feature horizontal height is less than the second feature.

[0040] In the description of the embodiment, the terms "on", "under", "left", "right", etc. Orientation or position relationship is based on the orientation or position relationship shown in the drawing, only for the convenience of description and simplification operation, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the utility model.In addition, the terms "first", "second" are only used to distinguish in the description, and have no special meaning.

[0041] The utility model will be further described below in conjunction with the embodiment.

[0042] Embodiment:

[0043] The utility model provides a kind of air duct structure of hand cleaning device, refer to attached Figures 1-6 The air duct structure of hand cleaning device of the embodiment mainly includes shell 1, shell 1 adopts vertical design, as shown in Figure 1 The shell 1 is cuboid structure, and the material is stainless steel material, the inside of shell 1 is hollow to accommodate air duct and liquid injection system.Shell top is provided with hand cleaning port 10, and the section is U-shaped with opening inclination 30 °, and the inclination design avoids hand to touch inner wall, and the inclination angle simulates the bending curvature when human hand is naturally inserted, avoids user hand back or finger to touch inner wall to cause secondary pollution, forms the operation channel for hand insertion, hand sensing unit 13 capable of detecting hand insertion is arranged in operation channel.

[0044] The inner walls on both sides of the hand-cleaning opening are respectively provided with liquid spraying openings 11 and air outlets 12, wherein the liquid spraying openings 11 are located directly below the air outlets 12 on the same side, the gravity is used to reduce the scattering of liquid droplets and the risk of blowing away the cleaning liquid by the airflow, and the liquid is ensured to accurately cover the surface of the hand.

[0045] The fan 2 is fixed inside the shell 1, and the air outlet is opposite to the bottom of the hand-cleaning opening 10, and the air outlet of the fan 2 is opposite to the central area of the bottom of the hand-cleaning opening 10.

[0046] When the hot air flows upward from the bottom, it is evenly distributed to the left and right air ducts through the internal U-shaped flow distribution, the internal air duct is made of high-temperature-resistant PC plastic, which ensures that the air volume is evenly distributed on both sides, and the left air duct is 5 mm higher than the right air duct as a whole, forming a stepped airflow channel, and the left airflow flows slowly to cover the back of the hand, and the high-speed airflow on the right side acts on the palm and finger joints.

[0047] The ends of the left and right air ducts are connected to the air outlets 12, and the air outlets 12 are composed of a plurality of air outlets 121, which are arranged equidistantly along the long side of the hand-cleaning opening 10, and the axes of all the air outlets 121 are inclined downward to the central axis of the hand-cleaning opening 10, and the extended lines thereof intersect above the center of the hand-cleaning opening, forming an airflow intersection point surrounding the hand.

[0048] It should be noted that the installation plane of the left air outlet 121 is slightly higher than that of the right air outlet, forming a stepped airflow channel, and the left (higher) airflow covers the back of the hand; the high-speed airflow on the right side directly hits the palm and finger joints.

[0049] The inner wall of the air duct is covered with a 2 mm thick PE thermal insulation layer, and a dense grid is arranged at the outlet of the air outlet 121, and the holes of the grid corresponding to the air outlet 121 are inclined, and since the spacing is very small, the airflow diffusion angle is very small, avoiding turbulence and noise.

[0050] In addition, the liquid spraying openings 11 are arranged asymmetrically, and the height of the left liquid spraying opening is lower than that of the right liquid spraying opening, which is suitable for different hand shapes.

[0051] The liquid spraying pipeline is connected to the pipe opening 14 on the side of the shell 1 through a silica gel hose, and the pipe opening 14 is provided with a screw thread or a buckle structure matched with the threaded interface of the hand sanitizer bottle to support quick disassembly.

[0052] In use, after the hand is inserted into the hand-cleaning opening 10, the hand sensing unit 13 triggers the liquid spraying openings 11 to spray a certain amount of hand sanitizer, and the fan 2 is started immediately, and the heated hot air enters the left and right air ducts from the bottom through the flow distribution, and is blown out from the air outlets 121.

[0053] The above examples are only used to illustrate the technical solutions of the present application, and are not limiting; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can still be modified, or some technical features therein can be replaced equivalently; and these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present application.

Claims

1. A hand-washing machine's air duct structure, characterized by, The utility model provides a hand washing device, including shell (1), the upper end of shell (1) is provided with the net hand mouth (10) for hand stretches into, and the section of net hand mouth (10) is the U shape of opening inclined upward, is provided with the liquid jet mouth (11) for spouting cleaning fluid and the air outlet (12) for blowing hot air respectively in the both sides of net hand mouth (10); Wherein, the shell (1) is provided with fan (2), the air outlet of fan (2) is arranged at the bottom of net hand mouth (10), and the hot air is from the bottom of net hand mouth (10) and is shunted to the air outlet (12) of both sides via the air duct of both sides rear of net hand mouth (10) and is discharged.

2. The air duct structure of a hand sanitizer according to claim 1, wherein The liquid jet mouth (11) is arranged below the air outlet (12) of the same side.

3. The air duct structure of a hand sanitizer according to claim 1, wherein The air outlet (12) is composed of several air outlets (121) arranged along the direction of one side of net hand mouth (10) and interval.

4. The air duct structure of a hand sanitizer according to claim 3, wherein The extension line of air outlet (121) of both sides of net hand mouth (10) intersects.

5. The air duct structure of a hand sanitizer according to claim 4, wherein The air outlet (121) of both sides of net hand mouth (10) is inclined downward to the direction of one side of the central axis of net hand mouth (10).

6. The air duct structure of a hand sanitizer according to claim 4, wherein The air outlet (121) of both sides of net hand mouth (10) is arranged at the end of the air duct of both sides rear of net hand mouth (10).

7. The air duct structure of a hand sanitizer according to claim 4, wherein The plane height of the air outlet (121) of one side is higher than the plane height of the air outlet (121) of the other side.

8. The air duct structure of a hand sanitizer according to claim 1, wherein The plane height of both sides of liquid jet mouth (11) is same.

9. The air duct structure of a hand sanitizer according to claim 1, wherein The liquid jet mouth (11) of both sides is asymmetrically arranged.

10. The air duct structure of a hand sanitizer according to claim 1, wherein The shell (1) is provided with a tube mouth (14) communicated with liquid jet mouth (11), and the tube mouth (14) is detachably matched with a container for placing hand washing liquid.

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