A dual-sided hand dryer

By incorporating a flip-top and snap-fit ​​structure on the outside of the double-sided hand dryer's casing as the main power switch, the problems of inconvenient operation and safety hazards in existing technologies are solved, achieving both convenient external control and improved durability.

CN224461607UActive Publication Date: 2026-07-07ZHEJIANG KINGWE ELECTRICAL CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG KINGWE ELECTRICAL CO LTD
Filing Date
2025-07-23
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

The control switch of existing double-sided hand dryers is located inside, which makes operation inconvenient and poses a safety hazard.

Method used

The main power switch, which connects the controller to the air outlet structure, is located in the switch slot on the outside of the housing. External operation is achieved through a flip cover and snap-fit ​​structure. The stainless steel cover and decorative strips enhance the aesthetics and durability, while the water trap reduces cleaning difficulty.

Benefits of technology

The main power switch can be easily operated from the outside, which improves safety and durability while reducing cleaning difficulty.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224461607U_ABST
    Figure CN224461607U_ABST
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Abstract

The utility model discloses to solve the problem that the switch is inconvenient because the main switch is in the shell of the existing hand dryer, provide a double -sided hand dryer, including air outlet structure, air inlet structure, controller and shell, and controller, air outlet structure and air inlet structure all set up in the shell inside, air inlet structure still is linked with air outlet structure, and controller is electrically connected with air outlet structure, and controls air outlet structure to send air, the upper end surface of shell is provided with U type through slot, and U type through slot is through shell in horizontal direction, and the air outlet of air outlet structure is arranged respectively on the both sides of U type through slot, and controller includes main switch and control panel, and control panel is electrically connected with air supply structure, and main switch also is electrically connected with control panel, and main switch sets up in the switch groove of the outside of shell, still be provided with with shell rotary connection flap in switch groove part, hide main switch on the shell on one hand, on the other hand also make things convenient for the main switch of external operation.
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Description

Technical Field

[0001] This utility model relates to the field of hand dryer equipment technology, and in particular to a double-sided hand dryer. Background Technology

[0002] Hand dryers are sanitary ware appliances that utilize high-speed airflow to accelerate moisture evaporation. To achieve a more comprehensive hand-drying effect, double-sided hand dryers have emerged, such as the one shown in patent CN213696696U. However, in existing similar large upright hand dryer structures, to achieve a more integrated appearance, control switches and other components are usually located inside the dryer. This means that to turn the dryer off, the outer casing must be opened first, which is inconvenient and increases the risk of operation. Therefore, there is a need for a double-sided hand dryer structure that allows for convenient external control. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing technologies and provide a double-sided hand dryer.

[0004] To solve the above problems, the present invention adopts the following solution:

[0005] A double-sided hand dryer includes an air outlet structure, an air inlet structure, a controller, and a housing for drying hands. The controller, air outlet structure, and air inlet structure are all housed inside the housing. The air inlet structure is also connected to the air outlet structure. The controller is electrically connected to the air outlet structure to control its air delivery. A U-shaped groove is provided on the upper surface of the housing, extending horizontally through the housing. Air outlets for the air outlet structure are located on both sides of the U-shaped groove. The air outlet structure also includes an air outlet pipe and a blower motor. The air inlet structure is located inside the housing near the bottom. The air structure is connected to the air outlet duct via a blower motor. The air outlet duct consists of two parts, which are respectively located on both sides of the U-shaped groove on the outer casing. The upper part of the air outlet duct is attached to the side wall of the U-shaped groove, and the air outlet passes through the side wall of the U-shaped groove and is connected to the air outlet duct. The controller includes a main power switch and a control board. The control board is electrically connected to the blower motor. The main power switch is also electrically connected to the control board and is located in the switch slot on the outside of the outer casing. A flip cover that is rotatably connected to the outer casing is also provided in the switch slot, and the shape of the flip cover corresponds to the switch slot.

[0006] Furthermore, the switch slot on the outer casing is a square box-shaped slot that is recessed into the interior of the outer casing; one end of the flip cover is hinged to the outer casing.

[0007] Furthermore, protruding snap-fit ​​protrusions are provided on both sides of the end of the flip cover away from the hinge part with the outer shell; snap-fit ​​grooves corresponding to the snap-fit ​​protrusions are provided inside the switch slot.

[0008] Furthermore, the inner side of the switch slot is also provided with a protruding abutment block to prevent the flip cover from being pressed excessively into the switch slot; when the flip cover is closed on the switch slot, the abutment block abuts against the edge of the flip cover.

[0009] Furthermore, the edge of the switch slot near the outer surface of the housing is provided with a recessed notch, which is located in the switch slot away from the side that is rotatably connected to the flip cover.

[0010] Furthermore, the outer surface of the outer shell is provided with a stainless steel cover; the edge of the cover is embedded in a shell groove provided on the outer side of the outer shell.

[0011] Furthermore, the outer side of the outer shell is also provided with a covering layer, wherein the covering layer and the decorative strip are made of stainless steel. The covering layer is located on the two outer surfaces of the outer shell that connect to the U-shaped through groove, and the covering layer is embedded in the recessed area on the two outer surfaces.

[0012] Furthermore, a decorative strip is provided on the outer side of the outer casing, wherein the decorative strip is made of stainless steel; the decorative strip is bonded to the outer side of the outer casing with double-sided adhesive, and a locking screw and a locking block that cooperate with the outer casing are also provided on the decorative strip; the locking block is located on the side of the decorative strip away from the outer casing; the locking screw passes through the locking block and the decorative strip and is threadedly connected to the outer casing.

[0013] Furthermore, the bottom of the U-shaped channel is provided with a water outlet, which is connected to a water storage tank located inside the outer casing via a pipe.

[0014] Furthermore, the bottom of the water storage tank is provided with an outlet that can be opened and closed; the outlet is exposed at the bottom of the outer shell; the bottom of the U-shaped channel is also provided with a sunken water storage bay; at both ends of the U-shaped channel near the bottom, there are upward-facing blocks, which cooperate with the bottom of the U-shaped channel to form a water storage bay; the water outlet is located at the bottom of the water storage bay.

[0015] The beneficial effects of this utility model are as follows:

[0016] By setting a flip cover with a retractable mechanism, combined with a recessed switch slot, the main power switch on the outer casing is hidden on the one hand, and it is also convenient to operate the main power switch from the outside on the other hand.

[0017] By setting a stop block to hold the flip cover in place, combined with the snap-fit ​​protrusion and snap-fit ​​groove, the flip cover remains stable when it is locked in the switch slot, preventing it from being opened easily.

[0018] By using a stainless steel outer casing, it is not only more aesthetically pleasing, but also more durable and easier to clean compared to a plastic casing.

[0019] By setting up structures such as water storage bays, it is easy to collect water dripping into the U-shaped channel area, reducing the difficulty of cleaning. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of Example 1.

[0021] Figure 2 This is an exploded view of the overall structure of Example 1;

[0022] Figure 3 for Figure 2 A magnified view of a portion of region a;

[0023] Figure 4 This is a disassembled cross-sectional view of the locking block portion of the decorative strip in Example 1;

[0024] Figure 5 This is a schematic diagram showing the combination of the outer cover and the outer shell in Embodiment 1;

[0025] Figure 6 This is a left view of the overall structure of Example 1;

[0026] Figure 7 for Figure 6 A schematic diagram of a partial cross-section of AA;

[0027] Figure 8 This is a schematic diagram of the bottom angle of the overall structure of Example 1.

[0028] Attached diagram labels: 1. Air outlet structure; 11. Air outlet duct; 12. Air supply motor; 13. Air inlet structure; 2. Controller; 3. Main power switch; 31. Control board; 32. Housing; 4. Switch slot; 41. Flip cover; 42. Snap-fit ​​protrusion; 43. Snap-fit ​​groove; 44. Stop block; 45. Notch; 46. Outer cover; 47. Housing groove; 48. Covering layer; 49. Decorative strip; 410. Locking block; 411. Locking screw; 412. U-shaped through groove; 5. Water outlet; 51. Water trap; 52. Stop block; 53. Water tank; 6. Water outlet; 61. Detailed Implementation

[0029] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, unless otherwise specified, the following embodiments and features described therein can be combined with each other.

[0030] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the figures only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0031] Example 1:

[0032] like Figures 1-8 As shown, a double-sided hand dryer includes an air outlet structure 1, an air inlet structure 2, a controller 3, and a housing 4 for drying hands. The controller 3, air outlet structure 1, and air inlet structure 2 are all located inside the housing 4. The air inlet structure 2 is also connected to the air outlet structure 1. The controller 3 is electrically connected to the air outlet structure 1 and controls the air outlet structure 1 to deliver air. The overall shape of the housing 4 is a square box. The housing 4 is in contact with the support surface and stands upright on the support surface. A U-shaped groove 5 is provided on the upper end surface of the housing 4. The U-shaped groove 5 penetrates the housing 4 in the horizontal direction. Air outlets 11 of the air outlet structure 1 are respectively provided on the two side walls of the U-shaped groove 5. The air outlets 11 blow air into the U-shaped groove 5, which can dry the palms and other objects placed in it. The air outlet structure 1 also includes an air outlet duct 12 and a blower motor 13; the air inlet structure 2 is located inside the outer casing 4 near the bottom, and the air inlet structure 2 is connected to the air outlet duct 12 through the blower motor 13; the air outlet duct 12 includes two parts, which are respectively located near the two sides of the U-shaped groove 5 on the outer casing 4, with the upper part of the air outlet duct 12 attached to the side wall of the U-shaped groove 5, and the air outlet 11 penetrating through the side wall of the U-shaped groove 5 and connected to the air outlet duct 12; the controller 3 includes a main power switch 31 and a control board 32, with the control board 32 electrically connected to the blower motor 13; the main power switch 31 is also electrically connected to the control board 32, and the main power switch 31 is located in the switch slot 41 on the outside of the outer casing 4; a flip cover 42 rotatably connected to the outer casing 4 is also provided in the switch slot 41, and the shape of the flip cover 42 corresponds to that of the switch slot 41. In this way, after flipping open the flip cover 42, the main power switch 31 can be conveniently controlled to turn off the hand dryer in time, which saves more power because the sensors and other components in the controller 3 of the hand dryer are always powered on. Turning off the main power switch 31 can save this part of the power. On the other hand, it also improves safety.

[0033] The switch slot 41 on the outer casing 4 is a square box-shaped slot that is recessed into the interior of the outer casing 4. One end of the flip cover 42 is hinged to the outer casing 4. On both sides of the end of the flip cover 42 away from the hinged part of the outer casing 4, there are protruding snap-fit ​​protrusions 43. In this example, the snap-fit ​​protrusions 43 are arc-shaped protrusions, which facilitates pressing the snap-fit ​​protrusions 43 on both sides into the switch slot 41 when the flip cover 42 is closed. On the inner side of the switch slot 41, there is a snap-fit ​​groove 44 corresponding to the snap-fit ​​protrusions 43. When the snap-fit ​​protrusions 43 are embedded in the snap-fit ​​grooves 44, the two are snapped together.

[0034] The inner side of the switch slot 41 is also provided with a protruding stop block 53 and abutment block 5345 to prevent the flip cover 42 from being excessively pressed into the switch slot 41; when the flip cover 42 is closed on the switch slot 41, the stop block 53 and abutment block 5345 abut against the edge of the flip cover 42, and the flip cover 42 is stably fastened. The edge of the switch slot 41 near the outer surface of the outer shell 4 is also provided with a recessed notch portion 46, which is located in the switch slot 41 away from the side that is rotatably connected to the flip cover 42; because when the flip cover 42 is fastened to the switch slot 41, the outer surface of the flip cover 42 and the outer surface of the outer shell 4 form a relatively flat surface, making it difficult to open the flip cover 42. However, through the notch portion 46, the flip cover 42 can be easily pushed outward to flip it outward and expose the main power switch 31 in the switch slot 41.

[0035] The outer casing 4 is further provided with a stainless steel cover 47 on one or both sides; in this example, the cover 47 covers the left and right sides of the outer casing 4; the U-shaped channel 5 is located between the two covers 47; the stainless steel cover 47 is provided for aesthetic purposes, and is also more robust, durable, and easier to clean than the plastic casing 4; in some other embodiments, the cover can be provided only on one side of the casing, against a wall, such as in public toilets. The edge of the cover is also embedded in the casing groove 48 provided on the outer casing, which can prevent the edge of the steel structure casing from cutting hands or scratching objects, and the connection between the cover and the outer casing is more stable. The outer side of the outer shell is also provided with a covering layer 49 and a decorative strip 410. Both the covering layer 49 and the decorative strip 410 are made of stainless steel. The covering layer 49 is located on the two outer surfaces of the outer shell that connect to the U-shaped through groove, that is, the two outer surfaces with smaller side areas. The covering layer 49 is embedded in the recessed areas of these two outer surfaces, also to prevent its edges from cutting hands. The decorative strip 410 is set on the part of the outer shell that is exposed to the outer cover and the covering layer 49. Due to the shape limitations of the outer shell, some areas of the outer shell are not fully covered, so the decorative strip 410 is provided to cover them. The decorative strip 410 is attached to the outer side of the outer shell with double-sided adhesive. Through the cooperation of the decorative strip, the outer cover and the covering layer, the stainless steel covering of the outer shell is achieved. While maintaining the appearance, it is also easy to clean, and the edges are not easy to cut hands, so the safety is high. The decorative strip 410 is also provided with a locking screw 412 and a locking block 411 that cooperate with the housing; the locking block 411 is located on the side of the decorative strip 410 away from the housing; the locking screw 412 passes through the locking block 411 and the decorative strip 410 and is threadedly connected to the housing; in this example, the locking block 411 is located near the bottom of the housing, which is relatively hidden and maintains the overall aesthetic appearance.

[0036] The bottom of the U-shaped channel is also provided with a water outlet 51, which is connected to a water storage tank 6 located inside the outer casing 4 via a pipe. The bottom of the water storage tank 6 is provided with a water outlet 61 that can be opened and closed. The water outlet 61 is exposed at the bottom of the outer casing 4. In this example, the bottom of the outer casing 4 is designed to be hollow. Both the water outlet 61 and the air inlet structure 2 are located in the hollow part of the bottom of the outer casing 4. This facilitates the intake of airflow by the air inlet structure 2 at the bottom and also facilitates drainage by the water outlet 61. The bottom of the U-shaped channel 5 is also provided with a sunken water trap 52 to prevent water dripping into the U-shaped channel 5 from overflowing, causing pollution, and increasing the difficulty of cleaning. An upward-facing baffle 53 is provided at both ends of the U-shaped channel 5 near the bottom. The baffle 53, together with the bottom of the U-shaped channel 5, forms a water storage bay 52. ​​The water outlet 51 is located at the bottom of the water storage bay 52. ​​The water outlet 51 is located at one end of the water storage bay 52. ​​The bottom of the water storage bay 52 is inclined upward from one end to the other end, so that the height of the water outlet 51 in the water storage bay 52 is minimized, so that the water stored in the water storage bay 52 can flow into the water storage tank 6 inside the outer shell 4 through the water outlet 61.

[0037] During implementation, by setting a flip cover 42 with a retractable mechanism, combined with a recessed switch slot 41, the main power switch 31 on the outer casing 4 is hidden, while also facilitating operation of the main power switch 31 from the outside. By setting a stop block 53 to abut against the stop block 5345, the flip cover 42 is held in place, and combined with the snap-fit ​​protrusion 43 and snap-fit ​​groove 44, the flip cover 42 remains stable when it is fastened in the switch slot 41, preventing it from being easily opened. By setting a stainless steel outer cover 47, it is not only more aesthetically pleasing, but also more robust and durable than the plastic outer casing 4, and easier to clean. By setting a water trap 52 and other structures, it is convenient to collect water dripping into the U-shaped channel 5 area, reducing the difficulty of cleaning.

[0038] The above description is merely a specific example of this utility model and does not constitute any limitation on this utility model. Obviously, those skilled in the art, after understanding the content and principle of this utility model, may make various modifications and changes in form and details without departing from the principle and structure of this utility model. However, these modifications and changes based on the concept of this utility model are still within the protection scope of the claims of this utility model.

Claims

1. A double-sided hand dryer, comprising an air outlet structure (1), an air inlet structure (2), a controller (3), and a housing (4) for drying hands, wherein the controller (3), the air outlet structure (1), and the air inlet structure (2) are all disposed inside the housing (4); the air inlet structure (2) is also connected to the air outlet structure (1); the controller (3) is electrically connected to the air outlet structure (1) and controls the air outlet structure (1) to deliver air; characterized in that, The upper surface of the outer shell (4) is provided with a U-shaped through groove (5), which penetrates the outer shell (4) horizontally. Air outlets (11) of the air outlet structure (1) are respectively provided on both sides of the U-shaped through groove (5). The air outlet structure (1) also includes an air outlet pipe (12) and a blower motor (13). The air inlet structure (2) is located inside the outer shell (4) near the bottom. The air inlet structure (2) is connected to the air outlet pipe (12) through the blower motor (13). The air outlet pipe (12) includes two parts, which are respectively located near both sides of the U-shaped through groove (5) on the outer shell (4). The upper part of the air duct (12) is attached to the side wall of the U-shaped channel (5), and the air outlet (11) passes through the side wall of the U-shaped channel (5) and communicates with the air outlet (12); the controller (3) includes a main power switch (31) and a control board (32), the control board (32) is electrically connected to the blower motor (13); the main power switch (31) is also electrically connected to the control board (32), and the main power switch (31) is located in the switch slot (41) on the outside of the outer shell (4); a flip cover (42) that is rotatably connected to the outer shell (4) is also provided in the switch slot (41), and the shape of the flip cover (42) corresponds to that of the switch slot (41).

2. A double-sided hand dryer according to claim 1, characterized in that, The switch slot (41) on the outer shell (4) is in the shape of a square box, and the switch slot (41) is recessed into the interior of the outer shell (4); one end of the flip cover (42) is hinged to the outer shell (4).

3. A double-sided hand dryer according to claim 2, characterized in that, The flip cover (42) is provided with protruding snap-fit ​​protrusions (43) on both sides of the end away from the hinge part of the outer shell (4); and a snap-fit ​​groove (44) corresponding to the snap-fit ​​protrusions (43) is provided on the inner side of the switch groove (41).

4. A double-sided hand dryer according to claim 3, characterized in that, The inner side of the switch slot (41) is also provided with a protruding stop block (53) (45) to prevent the flip cover (42) from being pressed excessively into the switch slot (41); when the flip cover (42) is closed on the switch slot (41), the stop block (53) (45) abuts against the edge of the flip cover (42).

5. A double-sided hand dryer according to claim 1, characterized in that, The edge of the switch slot (41) near the outer surface of the outer shell (4) is also provided with a recessed notch (46), which is located in the switch slot (41) away from the side that is rotatably connected to the flip cover (42).

6. A double-sided hand dryer according to claim 1, characterized in that, The outer side of the outer shell (4) is provided with a stainless steel cover (47); the edge of the cover is embedded in the shell groove (48) provided on the outer side of the outer shell.

7. A double-sided hand dryer according to claim 1, characterized in that, The outer side of the outer shell is also provided with a covering layer (49), wherein the covering layer and the decorative strip are made of stainless steel. The covering layer is located on the two outer surfaces of the outer shell connected to the U-shaped through groove (5), and the covering layer is embedded in the recessed area on the two outer surfaces.

8. A double-sided hand dryer according to claim 1, characterized in that, The outer side of the housing is also provided with a decorative strip (410), which is made of stainless steel. The decorative strip is bonded to the outer side of the housing with double-sided adhesive. The decorative strip is also provided with a locking screw (412) and a locking block (411) that cooperate with the housing. The locking block is located on the side of the decorative strip away from the housing. The locking screw passes through the locking block and the decorative strip and is threaded to the housing.

9. A double-sided hand dryer according to claim 1, characterized in that, The bottom of the U-shaped channel is also provided with a water outlet (51), which is connected to a water storage tank (6) located inside the outer shell (4) via a pipeline.

10. A double-sided hand dryer according to claim 8, characterized in that, The bottom of the water tank (6) is provided with an outlet (61) that can be opened and closed; the outlet (61) is exposed at the bottom of the outer shell (4); the bottom of the U-shaped channel (5) is also provided with a sunken water storage bay (52); at both ends of the U-shaped channel (5) near the bottom, there are upward baffles (53), which cooperate with the bottom of the U-shaped channel (5) to form a water storage bay (52); the water outlet (51) is located at the bottom of the water storage bay (52).