Hand dryer
Through the design of dust cover, filter mesh, heating chamber, air split fixture and thermal conductor, the hand dryer is prone to splashing, blockage and noise, achieving uniform heating and quick hand drying in air, improving the user experience.
Patent Information
- Application Number
- CN202422175882.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-05
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-09-05
AI Technical Summary
Existing hand dryers are susceptible to water splashing and debris blockage, which has high noise, uneven air outlet temperature, and poor user experience.
It adopts a threaded connection between the dust cover and the shell, filtering the filter, heating chamber heat gathering, air splitting air, uniform heating of the heat conductor plate and air discharge design, combined with photoinductor control.
Effectively prevent water from splashing in, keep the air inlet passage unobstructed, reduce noise, heat the air outlet evenly, and improve user experience and hand drying efficiency.
Smart Images
Figure CN223143374U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sanitary wares, in particular to a hand dryer. Background Art
[0002] A hand dryer is a common sanitary device, usually installed in the restrooms of public places such as shopping malls, office buildings, airports, railway stations, etc. There are some disadvantages in the existing hand dryers. First of all, in the sanitary environment, water is likely to splash into the interior of the hand dryer. At the same time, sundries, fibers, etc. in the environment may enter the air inlet channel, causing blockage, affecting normal air intake, and then reducing the working effect of the hand dryer. Moreover, the hand dryer makes a relatively loud noise, which extremely affects the use experience. Secondly, most of them rely on relatively high-temperature air to take away the water on the hands, and the heating power is relatively low, only a few hundred watts. Its heating function is only to maintain comfort. This way of drying hands is relatively slow, and at the same time, the air outlet temperature is not balanced. The air outlet temperature of some hand dryers is uneven, resulting in uneven heating of the hands and poor use experience. To solve the above problems, we have proposed a hand dryer. Summary of the Utility Model
[0003] The main purpose of the utility model is to provide a hand dryer, which can effectively solve the problems in the background art.
[0004] To achieve the above purpose, the technical solution adopted by the utility model is as follows:
[0005] A hand dryer, including a housing, an air inlet is opened at the top end of the housing, a dust-proof cover is detachably connected to the upper end of the air inlet, a plurality of groups of air intake holes are opened on the side wall of the dust-proof cover, a support frame is arranged below the air inlet inside the housing, the upper end of the support frame penetrates through the air inlet and extends to the outside of the upper part of the housing, a filter screen is arranged on the outer surface of the support frame, the filter screen is located at the overlapping part of the dust-proof cover and the support frame, a blower is arranged below the filter screen inside the support frame, and a heating component is arranged below the blower inside the housing.
[0006] Preferably, the dust-proof cover is threadedly connected to the upper end of the air inlet, a fixing component is fixedly connected to the side wall of the housing, and a bottom plate is arranged at the bottom end of the housing.
[0007] Preferably, the heating component includes a heating chamber at the lower end inside the support frame, a reinforcing rod is arranged below the inner top end of the heating chamber and close to the blower, a wind distribution fixing frame is arranged at the lower end of the reinforcing rod, the upper and lower ends of the wind distribution fixing frame bulge outwards, the bulging parts of the wind distribution fixing frame are fixedly connected to the inner surface of the heating chamber, and the wind distribution fixing frame is in a cross shape.
[0008] Preferably, a heating wire is arranged outside the air distribution fixing frame. The heating wire is located between the protruding parts at the upper and lower ends of the air distribution fixing frame. A heat conducting plate is fixedly connected to the lower end of the air distribution fixing frame. A plurality of groups of ventilation slots are formed through the heat conducting plate. Both the heating wire and the heat conducting plate are located inside the heating chamber.
[0009] Preferably, a fixing cover is fixedly connected to the outer side of the heat conducting plate. The fixing cover is embedded in the inner surface of the bottom plate. The upper surface of the fixing cover is fixedly connected to the lower end surface of the heating chamber. Two groups of air guiding plates are arranged inside the fixing cover. The air guiding plates are located below the heat conducting plate. An air outlet is formed at the bottom end of the fixing cover. The cross section of the air guiding plate is a trapezoid with an inclined surface facing downwards. The inclined surface of the air guiding plate faces downwards and the bottom is located above the air outlet.
[0010] Preferably, a switch is arranged at the bottom end of the bottom plate. A photoelectric sensor is arranged on one side of the bottom end of the bottom plate close to the air outlet. A control box is arranged on the inner side wall of the shell. A controller is arranged inside the control box.
[0011] Preferably, the controller is electrically connected to the blower, the switch, the photoelectric sensor, and the heating wire respectively.
[0012] Compared with the prior art, the utility model has the following beneficial effects:
[0013] 1. For this hand dryer, by screwing the dust-proof cover to the shell, the dust-proof cover can be replaced and cleaned. Through a plurality of groups of air intake holes formed on the side wall of the dust-proof cover, the surrounding air enters the hand dryer, and at the same time, water flow is prevented from splashing into the interior of the hand dryer, thereby preventing damage to the machine, reducing the noise generated by the hand dryer, improving the use experience, and further isolating sundries, fibers, etc. in the environment through the filter screen, thereby improving the working effect of the hand dryer.
[0014] 2. For this hand dryer, the heat is gathered through the heating chamber, the air distribution fixing frame is fixed through the reinforcing rod, the air blown by the blower is shunted through the air distribution fixing frame to make the air outlet balanced and keep the comfort of the hand. Through the operation of the heating wire, the air blown by the blower is heated. Through multiple heating, the heat is sufficient and will not hurt the hand. Through a plurality of groups of ventilation slots formed at the bottom end of the heat conducting plate, the hot air heats the hand more evenly, improving the use experience. Through the cross section of the two groups of air guiding plates being a trapezoid with an inclined surface facing downwards and located above the air outlet, the hot air is gathered and discharged from the air outlet, so that the hands can be dried quickly and the efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 is the overall structural schematic diagram of the utility model;
[0016] Figure 2 is the overall structural sectional schematic diagram of the utility model;
[0017] Figure 3 For the present utility model Figure 2 The enlarged view of part A in
[0018] Figure 4 is the partial structural schematic diagram of the present utility model.
[0019] In the figure: 1. Shell; 11. Dust-proof cover; 12. Air inlet holes; 13. Air inlet; 14. Filter net; 15. Support frame; 16. Fan; 17. Bottom plate; 18. Fixing part; 19. Switch; 2. Photoelectric inductor; 22. Control box; 23. Reinforcing rod; 24. Air distribution fixing frame; 25. Heating wire; 26. Heat conducting plate; 27. Fixing cover; 28. Air guiding plate; 29. Air outlet; 3. Controller; 31. Ventilation groove; 32. Heating chamber. Specific embodiments
[0020] In order to make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0021] As Figures 1-4 shown, the hand dryer includes a shell 1. An air inlet 13 is provided at the top end of the shell 1. A dust-proof cover 11 is detachably connected to the upper end of the air inlet 13. A plurality of groups of air inlet holes 12 are provided on the side wall of the dust-proof cover 11. A support frame 15 is arranged below the air inlet 13 inside the shell 1. The upper end of the support frame 15 penetrates through the air inlet 13 and extends to the outer side of the upper part of the shell 1. A filter net 14 is arranged on the outer surface of the support frame 15. The filter net 14 is located at the overlapping part of the dust-proof cover 11 and the support frame 15. A fan 16 is arranged below the filter net 14 inside the support frame 15. A heating component is arranged below the fan 16 inside the shell 1.
[0022] In this embodiment, the dust-proof cover 11 is threadedly connected to the upper end of the air inlet 13. A fixing part 18 is fixedly connected to the side wall of the shell 1. A bottom plate 17 is arranged at the bottom end of the shell 1.
[0023] Specifically, the hand dryer is fixed through the fixing part 18, so as to keep the machine stable during use. The dust-proof cover 11 is threadedly connected to the shell 1, so that the dust-proof cover 11 can be conveniently replaced and cleaned.
[0024] In this embodiment, the heating component includes a heating chamber 32 at the lower end inside the support frame 15. A reinforcing rod 23 is arranged below the inner top end of the heating chamber 32 near the fan 16. A wind distribution fixing frame 24 is arranged at the lower end of the reinforcing rod 23. The upper and lower ends of the wind distribution fixing frame 24 protrude outwards. The protruding parts of the wind distribution fixing frame 24 are fixedly connected to the inner surface of the heating chamber 32. The wind distribution fixing frame 24 is in a cross shape.
[0025] Specifically, the heat is concentrated by the heating chamber 32, the air distribution fixing frame 24 is fixed by the reinforcing rod 23, and the air blown by the blower 16 can be shunted through the cross-shaped air distribution fixing frame 24, so that the air outlet is balanced and the comfort of the hand is maintained.
[0026] In this embodiment, a heating wire 25 is arranged outside the air distribution fixing frame 24. The heating wire 25 is located between the protruding parts at the upper and lower ends of the air distribution fixing frame 24. A heat conducting plate 26 is fixedly connected to the lower end of the air distribution fixing frame 24. A plurality of groups of ventilation slots 31 are formed through the heat conducting plate 26. Both the heating wire 25 and the heat conducting plate 26 are located inside the heating chamber 32.
[0027] Specifically, after the heating wire 25 is energized and operates externally, it heats the air blown by the blower 16. Through multiple heating, the heat is sufficient and will not hurt the hand. Through the plurality of groups of ventilation slots 31 opened at the bottom end of the heat conducting plate 26, the hot air heats the hand more evenly, improving the use experience.
[0028] In this embodiment, a fixing cover 27 is fixedly connected to the outside of the heat conducting plate 26. The fixing cover 27 is embedded in the inner surface of the bottom plate 17. The upper surface of the fixing cover 27 is fixedly connected to the lower end surface of the heating chamber 32. Two groups of air guiding plates 28 are arranged inside the fixing cover 27. The air guiding plates 28 are located below the heat conducting plate 26. An air outlet 29 is opened at the bottom end of the fixing cover 27. The cross section of the air guiding plate 28 is a trapezoid with an inclined surface facing downwards. The inclined surface of the air guiding plate 28 faces downwards and the bottom is located above the air outlet 29.
[0029] Specifically, since the cross sections of the two groups of air guiding plates 28 are trapezoids with inclined surfaces facing downwards and are located above the air outlet 29, the hot air is gathered and discharged from the air outlet 29, so that the hands can be dried quickly and the efficiency is improved.
[0030] In this embodiment, a switch 19 is arranged at the bottom end of the bottom plate 17. A photoelectric sensor 2 is arranged on one side of the bottom end of the bottom plate 17 close to the air outlet 29. A control box 22 is arranged on the inner side wall of the housing 1. A controller 3 is arranged inside the control box 22.
[0031] Specifically, when the photoelectric sensor 2 senses a hand, a signal is sent to the controller 3 through electrical connection.
[0032] In this embodiment, the controller 3 is electrically connected to the blower 16, the switch 19, the photoelectric sensor 2, and the heating wire 25 respectively.
[0033] Specifically, when the controller 3 receives the signal, the blower 16 starts to operate, and at the same time the heating wire 25 starts to heat.
[0034] It should be noted that the present utility model is a hand dryer. The user controls the operation of the hand dryer through switch 19. When the user places the hand under the hand dryer and the photoelectric sensor 2 senses the hand, a signal is sent to the controller 3 through electrical connection. When the controller 3 receives the signal, the fan 16 starts to operate, and at the same time drives the heating wire 25 to start heating. The dust-proof cover 11 is threadedly connected to the housing 1, so that the dust-proof cover 11 can be replaced and cleaned. Through a number of intake holes 12 provided on the side wall of the dust-proof cover 11, the surrounding air enters the hand dryer, and at the same time prevents water from splashing into the interior of the hand dryer, thereby preventing damage to the machine and reducing the noise generated by the hand dryer, improving the user experience. The filter screen 14 further isolates sundries, fibers, etc. in the environment, thereby improving the working effect of the hand dryer. The hand dryer is fixed by the fixing member 18, so that the machine remains stable during use. The heating wire 25 starts to heat, and the heat is gathered by the heating chamber 32. The air distribution fixing frame 24 is fixed by the reinforcing rod 23. The air blown out by the fan 16 is distributed through the air distribution fixing frame 24, so that the air outlet is balanced and the comfort of the hand is maintained. Through the operation of the heating wire 25, the air blown out by the fan 16 is heated. Through multiple heating, the heat is sufficient and does not hurt the hand. Through a number of ventilation grooves 31 provided at the bottom end of the heat conduction plate 26, the hot air heats the hand more evenly, improving the user experience. The cross-sections of the two guide vanes 28 are trapezoids with inclined surfaces facing downwards and are located above the air outlet 29, so as to gather the hot air and discharge it from the air outlet 29, so that the hands can be dried quickly and the efficiency is improved.
[0035] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.
Claims
1. Hand dryer, comprising a housing (1), characterized in that: An air inlet (13) is provided at the top of the housing (1). A dust-proof cover (11) is detachably connected to the upper end of the air inlet (13). A plurality of groups of air intake holes (12) are provided on the side wall of the dust-proof cover (11). A support frame (15) is arranged below the air inlet (13) inside the housing (1). The upper end of the support frame (15) penetrates through the air inlet (13) and extends to the outside of the upper part of the housing (1). A filter screen (14) is arranged on the outer surface of the support frame (15). The filter screen (14) is located at the overlapping part of the dust-proof cover (11) and the support frame (15). A fan (16) is arranged below the filter screen (14) inside the support frame (15). A heating component is arranged below the fan (16) inside the housing (1).
2. The hand dryer according to claim 1, wherein: The dust-proof cover (11) is threadedly connected to the upper end of the air inlet (13). A fixing component (18) is fixedly connected to the side wall of the housing (1). A bottom plate (17) is arranged at the bottom end of the housing (1).
3. The hand dryer according to claim 1, wherein: The heating component includes a heating chamber (32) at the lower end inside the support frame (15). A reinforcing rod (23) is arranged below the fan (16) near the top end inside the heating chamber (32). A wind distribution fixing frame (24) is arranged at the lower end of the reinforcing rod (23). The upper and lower ends of the wind distribution fixing frame (24) bulge outwards. The bulging parts of the wind distribution fixing frame (24) are fixedly connected to the inner surface of the heating chamber (32). The wind distribution fixing frame (24) is in a cross shape.
4. The hand dryer according to claim 3, wherein: A heating wire (25) is arranged outside the wind distribution fixing frame (24). The heating wire (25) is located between the bulging parts at the upper and lower ends of the wind distribution fixing frame (24). A heat conducting plate (26) is fixedly connected to the lower end of the wind distribution fixing frame (24). A plurality of groups of ventilation slots (31) are formed through the heat conducting plate (26). Both the heating wire (25) and the heat conducting plate (26) are located inside the heating chamber (32).
5. The hand dryer according to claim 4, characterized in that: A fixing cover (27) is fixedly connected to the outside of the heat conducting plate (26). The fixing cover (27) is embedded in the inner surface of the bottom plate (17). The upper surface of the fixing cover (27) is fixedly connected to the lower end surface of the heating chamber (32). Two groups of wind guiding plates (28) are arranged inside the fixing cover (27). The wind guiding plates (28) are located below the heat conducting plate (26). An air outlet (29) is provided at the bottom end of the fixing cover (27). The cross section of the wind guiding plate (28) is a trapezoid with an inclined surface facing downwards. The inclined surface of the wind guiding plate (28) faces downwards and the bottom is located above the air outlet (29).
6. The hand dryer according to claim 2, characterized in that: A switch (19) is arranged at the bottom end of the bottom plate (17). A photoelectric sensor (2) is arranged on one side of the bottom end of the bottom plate (17) near the air outlet (29). A control box (22) is arranged on the inner side wall of the housing (1). A controller (3) is arranged inside the control box (22).
7. The hand dryer according to claim 6, wherein: The controller (3) is electrically connected to the fan (16), the switch (19), the photoelectric sensor (2), and the heating wire (25) respectively.