A blow dryer air leakage prevention structure

Abstract

The application relates to a blow dryer air leakage prevention structure, which is installed on a blow dryer and used for preventing air leakage of the blow dryer. The blow dryer comprises a handle and a wind tube fixedly connected to the handle. The air leakage prevention structure comprises a gland, the handle is provided with a containing groove matched with the gland, the gland is provided with a wiring lug and a plurality of sealing lugs, and the containing groove is provided with a switch module matched with the containing groove in position. A cavity at one end of the containing groove close to the wind tube is provided with a wiring groove for wiring of the switch module and a plurality of wire passing grooves for wire arrangement. When the gland is installed on the containing groove, the wiring lug is arranged in the wiring groove and tightly matched with the groove body, the wiring lug is tightly matched with one side of the switch module, each sealing lug is arranged in each wire passing groove and tightly matched with each wire passing groove, and each sealing lug tightly presses each wire against each wire passing groove. The application has the effect of the blow dryer air leakage prevention structure which can reduce production cost, improve assembly efficiency and facilitate installation or disassembly.

Description

Technical Field

[0001] This application relates to the field of hair dryers, and more particularly to a leak-proof structure for a hair dryer. Background Technology

[0002] Hair dryers, also known as electric hair dryers or hair dryers, are essential household items that can quickly dry hair and style it. Modern hair dryers generally consist of a handle for holding and a nozzle connected to the handle. The nozzle contains electronic components such as a fan and heating element. The switch module that controls the fan and heating element is usually located on the handle. Specifically, a receiving slot is typically created in the handle housing, and the switch module is housed within this slot. The receiving slot is then sealed by a pressure cap with an opening, allowing the switch module to extend from the opening for user operation. To facilitate the connection between the switch module and the electronic components inside the nozzle, a wiring slot is created at the front of the receiving slot to house the connecting wires. These wiring slots are connected to the nozzle, causing air from the nozzle to flow back into the receiving slot through the wiring slots and leak out through the opening on the pressure cap, resulting in air leakage.

[0003] Currently, to solve the air leakage problem caused by the air blown into the air duct flowing back into the receiving groove, the market generally seals the wiring groove with glue after the wires are laid out to prevent the air blown into the air duct from flowing back. However, the glue application method has many inconveniences, such as increased production costs, reduced assembly efficiency, and difficulty in installing and disassembling the cover plate after applying the glue.

[0004] The technical problem to be solved by this application is: to design a leak-proof structure for a hair dryer that can reduce production costs, improve assembly efficiency, and facilitate installation or disassembly, and to design a hair dryer that uses the leak-proof structure. Utility Model Content

[0005] In order to reduce production costs, improve assembly efficiency, and facilitate installation or disassembly of the air-leakage prevention structure for the hair dryer, this application provides an air-leakage prevention structure for the hair dryer.

[0006] The air leakage prevention structure for a hair dryer provided in this application adopts the following technical solution: A leak-proof structure for a hair dryer, wherein the leak-proof structure is installed on the hair dryer and is used to prevent air leakage from the hair dryer, the hair dryer includes a handle and a blower tube fixedly connected to the handle, the leak-proof structure includes a pressure cap, and the handle has a receiving groove that mates with the pressure cap, the pressure cap has a wiring protrusion and a plurality of sealing protrusions, and the receiving groove has a switch module that limits the movement of the receiving groove. The cavity at one end of the receiving groove near the air duct is provided with a wiring groove for wiring the switch module and multiple wire passage grooves for wiring. When the pressure cover is installed in the receiving groove, the wiring protrusion is inserted into the wiring groove and fits tightly against the side wall of the wiring groove, and the wiring protrusion is also fit tightly against one side of the switch module. Each of the sealing protrusions is inserted into each wire passage groove and fits tightly against each wire passage groove, and each of the sealing protrusions presses against the wire in each wire passage groove.

[0007] By adopting the above technical solution, by providing wiring protrusions and sealing protrusions on the gland, when the gland is installed in the receiving groove, the wiring protrusions can pass through the wiring groove and fit tightly with the wiring groove, and the wiring protrusions can fit tightly with one side of the switch module, so that the wiring protrusions and the switch module cooperate to form a seal on the wiring groove, thereby preventing the air in the blower from flowing back to the receiving groove through the wiring groove, causing the blower to leak air. Each sealing protrusion can pass through each wire passage groove and fit tightly against the groove body. Each sealing protrusion presses each wire tightly against the groove body, thereby sealing each wire passage groove. This prevents air from flowing back from the wire passage groove into the receiving groove, which would cause air leakage in the blower. This improves upon the current market practice of sealing the gap between the receiving groove and the blower and the wire passage groove after the wire is laid by applying glue to prevent air from flowing back into the blower. However, the glue application method has many inconveniences, such as increased production costs, reduced assembly efficiency, and difficulties in installing and disassembling the cover plate after applying glue.

[0008] Optionally, the protrusion between each pair of adjacent wire guide grooves is a wire guide protrusion, and the recess between each pair of adjacent sealing protrusions forms a sealing groove. When the pressure cap is installed in the receiving groove, each wire guide protrusion is inserted into each sealing groove and fits tightly with each sealing groove.

[0009] Optionally, a sealing block is fixedly provided at one end of each of the sealing grooves, and each sealing block seals one end of each of the sealing grooves. When the pressure cap is installed in the receiving groove, each sealing block is tightly fitted with each of the wire guide protrusions.

[0010] Optionally, each of the sealing blocks is located at the end of each sealing groove away from the air duct.

[0011] Optionally, the pressure cap is fixedly provided with at least one snap-fit ​​protrusion, and each snap-fit ​​protrusion abuts against the air duct so that each sealing block is tightly fitted with each wire guide protrusion.

[0012] Optionally, each of the described lead-through protrusions is semi-circular, and the bottom of each of the described sealing grooves is semi-circular.

[0013] Optionally, the bottom of each of the wire passage grooves is semi-circular, and each of the sealing protrusions is semi-circular. When the pressure cap is installed in the receiving groove, the sealing protrusion and the wire passage groove cooperate to form a limiting hole, and the wire passes through the limiting hole and fits tightly with the limiting hole.

[0014] Optionally, the receiving groove is fixedly provided with multiple positioning blocks, each of which abuts against the switch module, and one side of the switch module closes the opening of the wiring groove away from the air duct.

[0015] Optionally, the cover is fixedly provided with at least one clamping block, each of the clamping blocks abutting against the switch module to press the switch module into the receiving groove.

[0016] Optionally, one end of the pressure cap has a through hole, and the pressure cap is fixedly connected to the receiving groove by a screw that passes through the through hole and is threadedly connected to the receiving groove body.

[0017] In summary, this application includes at least one of the following beneficial technical effects: By providing wiring protrusions and sealing protrusions on the gland, when the gland is installed in the receiving groove, the wiring protrusions can pass through the wiring groove and fit tightly against the wiring groove, and the wiring protrusions can fit tightly against one side of the switch module. This allows the wiring protrusions and the switch module to cooperate to form a seal on the wiring groove, thereby preventing the air in the blower from flowing back into the receiving groove through the wiring groove, which would cause the blower to leak air. Each sealing protrusion can pass through each wire passage groove and fit tightly against the groove body. Each sealing protrusion presses each wire tightly against the groove body, thereby sealing each wire passage groove. This prevents air from flowing back from the wire passage groove into the receiving groove, which would cause air leakage in the blower. This improves upon the current market practice of sealing the gap between the receiving groove and the blower and the wire passage groove after the wire is laid by applying glue to prevent air from flowing back into the blower. However, the glue application method has many inconveniences, such as increased production costs, reduced assembly efficiency, and difficulties in installing and disassembling the cover plate after applying glue. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of a hair dryer. Figure 2 This is a schematic diagram of the air-leakage prevention structure installed on the blower. Figure 3 This is a schematic diagram of the overall structure of the air leakage prevention structure; Figure 4 This is a schematic diagram of an explosion-proof structure for preventing air leakage; Figure 5 This is a schematic diagram of the air-leakage-proof pressure cover structure. Figure 1 ; Figure 6 This is a schematic diagram of the air-proof and leak-proof structure containing the tank. Figure 7 This is a schematic diagram of the air-leakage-proof pressure cover structure. Figure 2 ; Figure 8 This is a schematic diagram of the fit between the air-leakage-proof pressure cap and the receiving groove; Figure 9 This is a schematic diagram of the air-leakage-proof pressure cover structure. Figure 3 .

[0019] Explanation of reference numerals in the attached drawings: 10, handle; 20, air duct; 1, pressure cap; 11, wiring protrusion; 12, sealing protrusion; 13, sealing groove; 14, sealing block; 15, snap-fit ​​protrusion; 16, clamping block; 17, through hole; 2, receiving groove; 21, switch module; 22, wiring groove; 23, wire passage groove; 24, wire passage protrusion; 25, limit hole; 26, positioning block. Detailed Implementation

[0020] The following is in conjunction with the appendix Figure 1-9 This application will be described in further detail.

[0021] Reference Figure 1 and Figure 2 In this embodiment of the application, the air-leakage prevention structure is installed on the hair dryer and is used to prevent the hair dryer from leaking air. The hair dryer includes a handle 10 and a blower tube 20 fixedly connected to the handle 10.

[0022] Reference Figures 3 to 9 In this embodiment, the air-leakage prevention structure includes a pressure cover 1, and the handle 10 has a receiving groove 2 that cooperates with the pressure cover 1. The top side of the pressure cover 1 is arc-shaped, and the bottom of the pressure cover 1 is provided with a wiring protrusion 11 and a plurality of sealing protrusions 12. The receiving groove 2 is provided with a switch module 21 that cooperates with the limiting of the receiving groove 2. The cavity of the receiving groove 2 near the end of the air duct 20 is provided with a wiring groove 22 for wiring the switch module 21 and a plurality of wire passing grooves 23 for wiring. When the pressure cover 1 is installed in the receiving groove 2, the wiring protrusion 11 passes through the wiring groove 22 and fits tightly with the groove body of the wiring groove 22, and the wiring protrusion 11 fits tightly with one side of the switch module 21. Each sealing protrusion 12 passes through each wire passing groove 23 and fits tightly with each wire passing groove 23, and each sealing protrusion 12 presses each wire tightly and fits it with each wire passing groove 23.

[0023] Reference Figures 3 to 9 In this embodiment of the application, the groove body of each pair of adjacent wire passage grooves 23 is a wire passage protrusion 24, and the sealing groove 13 is formed between each pair of adjacent sealing protrusions 12. When the pressure cover 1 is installed in the receiving groove 2, each wire passage protrusion 24 passes through each sealing groove 13 and fits tightly with each sealing groove 13.

[0024] Reference Figures 3 to 9 In this embodiment, a sealing block 14 is fixedly provided at one end of each sealing groove 13. Each sealing block 14 seals one end of each sealing groove 13. When the cover 1 is installed in the receiving groove 2, each sealing block 14 is tightly fitted with each wire guide protrusion 24 so that each sealing block 14 seals the connection position of each sealing groove 13 and each wire guide protrusion 24, thereby preventing the air from the blower 20 from flowing back into the receiving groove 2 through the connection position of each sealing groove 13 and each wire guide protrusion 24, thus preventing the blower from leaking air.

[0025] Reference Figures 3 to 9 In this embodiment, each sealing block 14 is located at one end of each sealing groove 13 near the receiving groove 2.

[0026] Reference Figures 3 to 9 In this embodiment, the pressure cap 1 is fixedly provided with a snap-fit ​​protrusion 15, which abuts against the air blower 20, so that the connection position between the air blower 20 and the handle 10 is located between the snap-fit ​​protrusion 15 and each sealing block 14. This ensures that the connection position between the air blower 20 and the handle 10 guarantees that each sealing block 14 and each wire guide protrusion 24 are tightly fitted. That is, when the hair dryer blows air, the air flowing in the air blower 20 can make the air blower 20 have a tendency to move away from the handle 10, so that the air blower 20 pulls each sealing block 14 through the snap-fit ​​protrusion 15, so that each sealing block 14 is tightly fitted with each wire guide protrusion 24 respectively.

[0027] Reference Figures 3 to 9 In this embodiment, one end of each wire-passing protrusion 24 is semi-circular, and the bottom of each sealing groove 13 is semi-circular, so that the wire-passing protrusion 24 and the sealing groove 13 fit more tightly.

[0028] Reference Figures 3 to 9 In this embodiment, the bottom of each wire passage 23 is semi-circular, and one end of each sealing protrusion 12 is semi-circular. When the pressure cap 1 is installed in the receiving groove 2, the sealing protrusion 12 and the wire passage 23 cooperate to form a limiting hole 25. The wire passes through the limiting hole 25 and fits tightly with the limiting hole 25, so that the sealing protrusion 12 can press the wire more tightly against the wire passage 23.

[0029] Reference Figures 3 to 9 In this embodiment of the application, the receiving groove 2 is fixedly provided with a plurality of positioning blocks 26, each positioning block 26 abutting against the switch module 21, so that the switch module 21 is tightly fitted with the groove body of the receiving groove 2 on the side near the wiring groove 22.

[0030] Reference Figures 3 to 9In this embodiment of the application, the cover 1 is fixedly provided with two pressing blocks 16, each pressing block 16 abutting against the switch module 21 to press the switch module 21 into the receiving groove 2.

[0031] Reference Figures 3 to 9 In this embodiment of the application, one end of the pressure cap 1 is provided with a through hole 17, and the pressure cap 1 is installed in the receiving groove 2 by a screw that passes through the through hole 17 and is threadedly connected to the groove body of the receiving groove 2.

[0032] The implementation principle of the air leakage prevention structure of the hair dryer in this application embodiment is as follows: By providing wiring protrusions 11 and sealing protrusions 12 on the pressure cover 1, when the pressure cover 1 is installed in the receiving groove 2, the wiring protrusions 11 can pass through the wiring groove 22 and fit tightly with the wiring groove 22, and the wiring protrusions 11 can fit tightly with one side of the switch module 21, so that the wiring protrusions 11 and the switch module 21 cooperate to form a seal on the wiring groove 22, thereby preventing the air in the air tube 20 from flowing back to the receiving groove 2 through the wiring groove 22, causing the hair dryer to leak air; Each sealing protrusion 12 can pass through each wire passage 23 and fit tightly against the groove body of each wire passage 23. Each sealing protrusion 12 presses each wire tightly against the groove body of each wire passage 23, thereby achieving a seal for each wire passage 23. This prevents the air in the blower 20 from flowing back from each wire passage 23 into the receiving groove 2, which would cause air leakage in the blower. This improves the current market practice of sealing the gap between the receiving groove 2 and the blower 20 and the wire passage 23 after the wire is laid by applying glue to prevent the air blown into the blower 20 from flowing back. However, the glue application method has many inconveniences, such as increased production costs, reduced assembly efficiency, and difficulties in installing and disassembling the cover plate after applying glue.

[0033] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A blow dryer air leakage prevention structure, characterized by: The air-proof structure is installed on the hair dryer and is used to prevent air leakage from the hair dryer. The hair dryer includes a handle (10) and a blower tube (20) fixedly connected to the handle (10). The air-proof structure includes a pressure cap (1), and the handle (10) has a receiving groove (2) that cooperates with the pressure cap (1). The pressure cap (1) has a wiring protrusion (11) and a plurality of sealing protrusions (12). The receiving groove (2) has a switch module (21) that is limited to cooperate with the receiving groove (2). The receiving groove (2) near the air duct (20) has a wiring groove (22) for wiring the switch module (21) and a plurality of wire passage grooves (23) for wiring. When the cover (1) is installed in the receiving groove (2), the wiring protrusion (11) is inserted into the wiring groove (22) and fits tightly against the side wall of the wiring groove (22), and the wiring protrusion (11) fits tightly against one side of the switch module (21). Each sealing protrusion (12) is inserted into each wire passage groove (23) and fits tightly against the side wall of each wire passage groove (23), and each sealing protrusion (12) presses against the wire in each wire passage groove (23).

2. The air leakage prevention structure of a hair dryer according to claim 1, characterized by: The protrusion between two adjacent wire guide grooves (23) is a wire guide protrusion (24), and the recess between two adjacent sealing protrusions (12) forms a sealing groove (13). When the cover (1) is installed in the receiving groove (2), each wire guide protrusion (24) is inserted into each sealing groove (13) and fits tightly with each sealing groove (13).

3. The air-leakage prevention structure for a hair dryer according to claim 2, characterized in that: Each of the sealing grooves (13) is fixedly provided with a sealing block (14) at one end. Each sealing block (14) seals one end of each sealing groove (13). When the cover (1) is installed in the receiving groove (2), each sealing block (14) is tightly fitted with each of the wire guide protrusions (24).

4. The air leakage prevention structure of a hair dryer according to claim 3, characterized by: Each of the sealing blocks (14) is located at the end of each of the sealing grooves (13) away from the air duct (20).

5. The air leakage prevention structure of a hair dryer according to claim 4, characterized by: The pressure cap (1) is fixedly provided with at least one snap-fit ​​protrusion (15), and each snap-fit ​​protrusion (15) abuts against the air duct (20) so that each sealing block (14) is tightly fitted with each wire guide protrusion (24).

6. The air leakage prevention structure of a hair dryer according to claim 2, characterized by: Each of the aforementioned lead-through protrusions (24) is semi-circular, and the bottom of each of the aforementioned sealing grooves (13) is semi-circular.

7. The air-leakage prevention structure for a hair dryer according to claim 1, characterized in that: The bottom of each of the wire passage grooves (23) is semi-circular, and the bottom of each of the sealing protrusions (12) is semi-circular. When the pressure cap (1) is installed in the receiving groove (2), the sealing protrusion (12) and the wire passage groove (23) cooperate to form a limiting hole (25). The wire passes through the limiting hole (25) and fits tightly with the limiting hole (25).

8. The air leakage prevention structure of a hair dryer according to claim 1, characterized by: The receiving groove (2) is fixedly provided with a plurality of positioning blocks (26), each of the positioning blocks (26) abutting against the switch module (21), and one side of the switch module (21) closes the opening of the wiring groove (22) away from the air duct (20).

9. The air leakage prevention structure of a hair dryer according to claim 1, characterized by: The cover (1) is fixedly provided with at least one pressing block (16), and each pressing block (16) abuts against the switch module (21) to press the switch module (21) into the receiving groove (2).

10. The air leakage prevention structure of a hair dryer according to claim 1, characterized by: The pressure cap (1) has a through hole (17) at one end, and the pressure cap (1) is fixedly connected to the receiving groove (2) by a screw that passes through the through hole (17) and is threaded to the receiving groove (2).

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