Leakage-proof hair dryer power connection structure

Abstract

The utility model discloses a kind of anti-creeping hair dryer power connection structures, the utility model relates to electrical equipment technical field.The connection structure, including socket, the plug is inserted into the socket, the outer wall of the plug is fixedly connected with wire harness, the outer wall of the plug is slidably connected with protection assembly and connecting component;Through the design of buckle structure, 45 degree inclined plane of pressing block close to one end of card slot, make the snap process of protection box and socket smooth and fast, user only needs to slide protection box along wire harness, and clamping block can be automatically compressed spring and clamped into card slot under the guidance of inclined plane, whole installation process is simple to operate, time is short, can be completed without additional tool, protection box is integrally injection molded with high-strength insulating engineering plastic, can form closed insulating space, the connecting part of plug and socket is completely wrapped, insulate external water, dust and other conductive medium, break down the path of electric leakage from physical level.

Description

Technical Field

[0001] This utility model relates to the field of electrical equipment technology, specifically to a power connection structure for a leak-proof hair dryer. Background Technology

[0002] Hair dryers are common small household appliances used in homes, barbershops, hotels and other places. Especially when used in humid environments such as bathrooms, their power connection points are very likely to come into contact with conductive media such as water stains and water mist. At the same time, dust accumulation and accidental pulling of the cord are also common occurrences during daily use. These factors greatly increase the safety hazards such as leakage and short circuits, seriously threatening the personal safety and property safety of users.

[0003] Most hair dryer power connection structures on the market today simply use a regular plug and socket connection without any protective measures. This connection method has many drawbacks. The connection between the plug and socket is completely exposed, making it impossible to prevent water stains, dust, etc. from entering. This can easily lead to aging of the insulation layer, corrosion of metal parts, and even leakage accidents. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a power connection structure for a hair dryer that prevents leakage. This solves the problem that the connection between the plug and the socket is completely exposed, making it impossible to prevent water stains, dust, and other contaminants from entering, which can easily lead to aging of the insulation layer, corrosion of metal parts, and ultimately, leakage accidents.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a power connection structure for a leak-proof hair dryer, including a socket, a plug for which a wire harness is fixedly connected, and a protective component and a connecting component slidably connected to the outer wall of the plug; the protective component includes a protective box, a groove on the outer wall of the protective box, a limiting groove on the inner wall of the groove, a spring fixedly connected to the inner wall of the groove, a card holder fixedly connected to the outer wall of the socket, a card block fixedly connected to the inner wall of the card holder, a pressing block slidably connected to the inner wall of the groove, a limiting block fixedly connected to the outer wall of the pressing block, and a slot on the outer wall of one end of the pressing block.

[0008] Preferably, the protective box is slidably connected to the outer wall of the wire harness, the outer wall of the protective box is fixedly connected to a hook, the end of the spring away from the groove is fixedly connected to the outer wall of the pressing block, the end of the pressing block near the slot is inclined, the protective box is integrally injection molded from high-strength insulating engineering plastic, the hook on the outer wall of the protective box is made of stainless steel and is rust-proofed, and the end of the pressing block near the slot is designed with a 45° inclined surface.

[0009] Preferably, the limiting block is slidably connected to the limiting groove, and four limiting blocks are provided. The four limiting blocks are symmetrically distributed around the central axis of the pressing block. The limiting blocks are made of wear-resistant polyoxymethylene material, and the surface of the limiting block that is slidably connected to the limiting groove is finely polished. This symmetrical distribution of the limiting blocks enables the pressing block to maintain balance when subjected to force.

[0010] Preferably, the connecting assembly includes a plug, the inner wall of the plug having a first sliding groove and a second sliding groove, the outer wall of the plug being fixedly connected to a rubber pad, the inner wall of the second sliding groove being slidably connected to a sliding rod, the inner wall of the first sliding groove being slidably connected to a connecting block, and the top of the sliding rod being provided with an anti-slip pad.

[0011] Preferably, the bottom of the slide rod is fixedly connected to the top of the connecting block, the slide rod is slidably connected to the pin through the connecting block, and the connecting block is fixedly connected to the pin. The connecting block is made of copper, which can cut off the current and prevent the danger of electric shock during use. The bottom of the slide rod and the top of the connecting block are fixedly connected by a high-strength adhesive.

[0012] (III) Beneficial Effects

[0013] This utility model provides a power connection structure for a hair dryer that prevents leakage current. It has the following beneficial effects:

[0014] (I) The power connection structure of this anti-leakage hair dryer, through the design of the snap-fit ​​structure, the 45-degree slope of the pressing block near the end of the slot makes the engagement process between the protective box and the socket smooth and quick. The user only needs to slide the protective box along the wire harness, and the snap-fit ​​block will automatically compress the spring under the guidance of the slope and snap into the slot. The whole installation process is simple to operate, short in time, and can be completed without additional tools. The protective box is made of high-strength insulating engineering plastic and is integrally injection molded, which can form a closed insulating space, completely wrapping the connection part of the plug and socket, isolating external water, dust and other conductive media, and blocking the leakage path from a physical level.

[0015] (II) The power connection structure of this anti-leakage hair dryer is fixed to the sliding rod and the connecting block with high-strength adhesive. The connecting block and the plug adopt an interference fit. This double-stable connection method can resist external vibration and pulling during use. The connecting block is made of copper. Copper's good conductivity not only ensures stable power transmission, but also can reasonably cut off the current when the circuit is abnormal. Combined with the physical protection of the protective components, a double anti-leakage safety mechanism is constructed to provide users with comprehensive power safety protection, ensure the reliability of the power connection, and reduce problems such as poor contact and overheating caused by loose connection. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a structural schematic diagram of the cross-section of the plug of this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the protective component of this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the pressing block of this utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the connecting component of this utility model;

[0021] Figure 6 This is a schematic diagram of the slide bar of this utility model.

[0022] In the diagram: 1. Socket; 2. Plug; 3. Wiring harness; 4. Protective component; 5. Connecting component; 41. Protective box; 42. Groove; 43. Limiting groove; 44. Spring; 45. Card box; 46. Card block; 47. Pressing block; 48. Limiting block; 49. Card slot; 51. First slide groove; 52. Second slide groove; 53. Rubber pad; 54. Slide rod; 55. Connecting block; 56. Anti-slip pad. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-6This utility model provides a technical solution: a power connection structure for a leak-proof hair dryer, including a socket 1, a plug 2 inserted into the socket 1, a wire harness 3 fixedly connected to the outer wall of the plug 2, and a protective component 4 and a connecting component 5 slidably connected to the outer wall of the plug 2; the protective component 4 includes a protective box 41, a groove 42 formed on the outer wall of the protective box 41, a limit groove 43 formed on the inner wall of the groove 42, a spring 44 fixedly connected to the inner wall of the groove 42, a card holder 45 fixedly connected to the outer wall of the socket 1, a card block 46 fixedly connected to the inner wall of the card holder 45, and a pressing block slidably connected to the inner wall of the groove 42. 47. A limit block 48 is fixedly connected to the outer wall of the pressing block 47. A slot 49 is provided on the outer wall of one end of the pressing block 47. The protective box 41 is slidably connected to the outer wall of the wire harness 3. A hook is fixedly connected to the outer wall of the protective box 41. The end of the spring 44 away from the groove 42 is fixedly connected to the outer wall of the pressing block 47. The end of the pressing block 47 near the slot 49 is inclined. The protective box 41 is integrally injection molded from high-strength insulating engineering plastic. Its inner wall is provided with an arc-shaped guide groove that matches the outer diameter of the wire harness 3. It can protect the wire harness 3 during sliding and prevent the wire harness 3 from being damaged by friction. The hooks fixed to the outer wall of box 41 are made of stainless steel and rust-proofed. Their opening size is reasonably designed to fit common hook hanging scenarios, facilitating temporary storage of the hair dryer. The end of the pressing block 47 near the slot 49 has a 45-degree bevel design. This bevel structure allows the pressing block 47 to smoothly move the limiting block 48 within the limiting groove 43 when pressed by external force. Simultaneously, it acts as a guide when the locking block 46 engages with the slot 49, facilitating quick engagement between the protective box 41 and the socket 1. The limiting block 48 and the limiting groove 43 are slidably connected. Four limit blocks 48 are provided, and the four limit blocks 48 are symmetrically distributed around the central axis of the pressing block 47. The limit blocks 48 are made of wear-resistant polyoxymethylene material, and the surface of the limit block 48 that slides with the limit groove 43 is finely polished to ensure the smooth sliding of the limit block 48 and provide a reliable limiting effect. The four limit blocks 48 are symmetrically distributed around the central axis of the pressing block 47. This symmetrical distribution allows the pressing block 47 to maintain balance when subjected to force, avoiding tilting and jamming, thereby ensuring that the protective box 41 operates stably and reliably during opening and closing.

[0025] The connecting assembly 5 includes a plug 2. The inner wall of the plug 2 has a first groove 51 and a second groove 52. A rubber pad 53 is fixedly connected to the outer wall of the plug 2. A slide rod 54 is slidably connected to the inner wall of the second groove 52. A connecting block 55 is slidably connected to the inner wall of the first groove 51. An anti-slip pad 56 is provided on the top of the slide rod 54. The rubber pad 53 fixedly connected to the outer wall of the plug 2 is made of silicone rubber material with good anti-slip performance and aging resistance. Its surface has a fine textured surface, which can prevent the plug 2 from accidentally falling off due to external impact to a certain extent. The bottom of the slide rod 54 is fixedly connected to the top of the connecting block 55. The slide rod 54 is connected to the connecting block 55 via the connecting block 55. The pins are slidably connected, and the connecting block 55 is fixedly connected to the pins. The bottom of the slide rod 54 and the top of the connecting block 55 are fixedly connected by a high-strength adhesive. The connection layer formed after the adhesive cures has good shear strength and temperature resistance, which can ensure that the slide rod 54 and the connecting block 55 maintain a stable connection during long-term use. The slide rod 54 is slidably connected to the pins through the connecting block 55. The connecting block 55 is made of copper. Copper can cut off the current and prevent the danger of electric shock during use. This connection method allows the connecting block 55 to stably drive the pins to move inside the plug 2, while ensuring that the pins will not loosen in the working state, ensuring the reliability of the power connection.

[0026] When using the hair dryer, after inserting the plug 2 into the socket 1, the user slides the protective box 41 along the wire harness 3. Because the inner wall of the protective box 41 has an arc-shaped guide groove that matches the outer diameter of the wire harness 3, it ensures that the wire harness 3 will not be damaged by friction during sliding. The protective box 41 is made of high-strength insulating engineering plastic and is integrally injection molded. When slid to the socket 1, it completely encloses the connection between the plug 2 and the socket 1, forming a physical insulation barrier to isolate external conductive media such as water and dust that may cause leakage. The protective box 41 is fixed to the socket 1 through a snap-fit ​​structure. The pressing block 47 in the groove 42 on the outer wall of the protective box 41 is close to the slot 4. 9. One end is inclined at a 45-degree angle. When the protective box 41 approaches the socket 1, the locking block 46 inside the locking box 45 contacts the inclined surface of the pressing block 47. The horizontal pushing force of the locking block 46 is decomposed into a normal force perpendicular to the inclined surface and a component force downward along the inclined surface, causing the pressing block 47 to slide into the groove 42 against the elastic force of the spring 44. The spring 44 is compressed. When the locking block 46 slides to the position of the locking slot 49, the spring 44 rebounds, pushing the pressing block 47 to reset. The locking block 46 is locked into the locking slot 49, realizing a firm lock between the protective box 41 and the socket 1. At this time, the spring 44 maintains a certain preload to ensure a stable connection and prevent the protective box 41 from accidentally falling off. The four symmetrically distributed limiting blocks 48 and limiting slots The sliding connection 43 features finely polished surfaces of the limiting block 48 and the limiting groove 43, ensuring smooth sliding of the limiting block 48 and providing a reliable limiting effect. This symmetrical distribution allows the pressing block 47 to maintain balance under force, preventing tilting and jamming, and ensuring stable and reliable operation of the protective box 41 during opening and closing. Even after multiple openings and closings, it maintains good performance. After use, simply press the pressing blocks 47 on both sides of the protective box 41, compressing the spring 44 and disengaging the locking block 46 from the locking groove 49. The connecting block 55, in conjunction with the pin, allows the connecting block 55 to stably drive the pin to move. During use, push the slide rod. 54. The slider 54 drives the connecting block 55 and the pins to move towards the outer wall of the plug 2, realizing the insertion of the plug 2 into the socket. After use, push the slider away from the socket, and the slider will cause the connecting block 55 and the pins to retract into the interior of the plug 2 to prevent water contact. In addition, even if the hair dryer is subjected to a certain amount of external vibration or pulling during use, the pins will not loosen, ensuring the reliability of the power connection. Through the cooperation of the protective component 4 and the connecting component 5, the power connection structure of the anti-leakage hair dryer reduces the risk of leakage from multiple aspects such as physical protection, structural locking, and stable pin connection, providing users with a safe and reliable power connection solution.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A power connection structure for a leak-proof hair dryer, comprising a socket (1), wherein a plug (2) is inserted into the socket (1), and a wire harness (3) is fixedly connected to the outer wall of the plug (2), characterized in that: The outer wall of the plug (2) is slidably connected with a protective component (4) and a connecting component (5); The protective component (4) includes a protective box (41), the outer wall of the protective box (41) is provided with a groove (42), the inner wall of the groove (42) is provided with a limiting groove (43), the inner wall of the groove (42) is fixedly connected with a spring (44), the outer wall of the socket (1) is fixedly connected with a card box (45), the inner wall of the card box (45) is fixedly connected with a card block (46), the inner wall of the groove (42) is slidably connected with a pressing block (47), the outer wall of the pressing block (47) is fixedly connected with a limiting block (48), and the outer wall of one end of the pressing block (47) is provided with a card groove (49).

2. The power connection structure for a leak-proof hair dryer according to claim 1, characterized in that: The protective box (41) is slidably connected to the outer wall of the wire harness (3), and a hook is fixedly connected to the outer wall of the protective box (41). The end of the spring (44) away from the groove (42) is fixedly connected to the outer wall of the pressing block (47), and the end of the pressing block (47) near the slot (49) is inclined.

3. The power connection structure for a leak-proof hair dryer according to claim 1, characterized in that: The limiting block (48) is slidably connected to the limiting groove (43). There are four limiting blocks (48), which are symmetrically distributed about the central axis of the pressing block (47).

4. The power connection structure for a leak-proof hair dryer according to claim 1, characterized in that: The connecting assembly (5) includes a plug (2), the inner wall of the plug (2) is provided with a first groove (51), the inner wall of the plug (2) is provided with a second groove (52), the outer wall of the plug (2) is fixedly connected with a rubber pad (53), the inner wall of the second groove (52) is slidably connected with a slide rod (54), the inner wall of the first groove (51) is slidably connected with a connecting block (55), and the top of the slide rod (54) is provided with an anti-slip pad (56).

5. The power connection structure for a leak-proof hair dryer according to claim 4, characterized in that: The bottom of the slide rod (54) is fixedly connected to the top of the connecting block (55), the slide rod (54) is slidably connected to the pin through the connecting block (55), and the connecting block (55) is fixedly connected to the pin.

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