A magnetic suction nozzle connection structure

Abstract

This utility model provides a magnetic nozzle connection structure, including an inner shell and an outer shell. The inner shell includes a connecting part and an air guide part. A fixing member is sleeved on the outer periphery of the connecting part, and a mounting groove is formed between the fixing member and the connecting part. A magnetic member is disposed in the mounting groove. The outer wall of the connecting part has a limiting step that abuts against the top surface of the magnetic member. The inner wall of the outer shell has a rib extending into the mounting groove, and the free end of the rib abuts against the bottom surface of the magnetic member. By limiting and fixing the upper and lower parts of the magnetic member through the limiting step and the rib, the installation convenience and usage stability of the magnetic member are effectively improved. At the same time, this fixing method is not only simple and durable in structure and easy to produce and develop, which is conducive to large-scale production by enterprises, but also facilitates the free disassembly and assembly of the nozzle by users, making subsequent cleaning and maintenance easier and effectively improving the user experience.

Description

Technical Field

[0001] This utility model belongs to the technical field of hair dryer nozzles, specifically relating to a magnetic nozzle connection structure. Background Technology

[0002] In recent years, with the trend of miniaturization and convenience of personal care appliances, the application of magnetic nozzles in hair dryers has become increasingly popular. This design uses the magnetic attraction force to achieve quick assembly and disassembly of the nozzle and the main body of the hair dryer, which not only improves the convenience of use for users, but also meets the diverse styling needs.

[0003] Currently, the industry generally adopts the following fixing structure: a ring or partial groove is opened at the docking end of the nozzle, and a magnetic block or iron sheet is directly glued and fixed in the groove. A ferromagnetic metal ring or a reverse magnet is set on the outer periphery of the air outlet of the blower body, and the two are connected by magnetic force.

[0004] However, despite the simplicity and low cost of this solution, several problems still exist. Specifically, the outlet temperature of the hair dryer reaches 80°C to 120°C during operation and then rapidly drops to room temperature after shutdown. This frequent alternation of hot and cold causes thermal expansion and contraction stress in the adhesive. Furthermore, due to the limited temperature resistance of the adhesive, this further accelerates its aging. As the adhesive ages, it is prone to fatigue cracking at the bonding interface, making it easy for the magnet to come out of the groove when the nozzle is inserted or removed or when it is accidentally dropped. If the magnet breaks and is sucked into the hair dryer, it may damage the high-speed rotating fan, thus creating a safety hazard. Utility Model Content

[0005] (1) Technical problems to be solved

[0006] This utility model provides a magnetic suction nozzle connection structure, which aims to solve the problems that the existing magnetic suction nozzle glue fixing method has obvious deficiencies in terms of reliability, durability and safety.

[0007] (2) Technical solution

[0008] This utility model provides a magnetic suction nozzle connection structure, including an inner shell and an outer shell. The outer shell is sleeved on the outer peripheral wall of the inner shell. The inner shell includes a hollow connecting part and an air guide part. A fixing member is sleeved on the outer periphery of the connecting part. A vertically penetrating mounting groove is formed between the inner wall of the fixing member and the outer wall of the connecting part. A magnetic suction member is provided in the mounting groove. The outer wall of the connecting part is provided with a limiting step that abuts against the top surface of the magnetic suction member. The inner wall of the outer shell is provided with a rib extending into the mounting groove. The free end of the rib abuts against the bottom surface of the magnetic suction member.

[0009] Furthermore, the top surface of the magnetic suction member includes a covered portion and a non-covered portion, the covered portion abutting against the limiting step, and the width A of the non-covered portion is greater than the width B of the covered portion.

[0010] Furthermore, the mounting groove has an arc-shaped structure and is provided in multiple manner, with the multiple mounting grooves arranged in a ring-shaped interval around the connecting part.

[0011] Furthermore, the magnetic attractor is a magnet or a magnetic metal material.

[0012] Furthermore, on the front and rear end faces of the inner shell, there are symmetrically arranged conical first transition surfaces connecting the connecting part and the air guide part, and the outer shell is provided with a second transition surface that matches the first transition surface.

[0013] Furthermore, the second transition surface is provided with an inwardly extending locking block, and the first transition surface is provided with a locking groove that engages with the locking block.

[0014] Furthermore, the outer side of the bottom wall of the card slot is provided with a first guide surface that extends obliquely upward and outward, and the end wall of the free end of the card block is provided with a second guide surface that corresponds to the first guide surface.

[0015] Furthermore, the top surface of the card block is connected to the inner wall of the outer shell by a number of first reinforcing ribs.

[0016] Furthermore, the first transition surface and the outer wall of the air guide are provided with a number of outwardly protruding second reinforcing ribs, so that a heat dissipation cavity is formed between the inner shell and the outer shell.

[0017] Furthermore, the bottom of the fastener is provided with a downwardly extending limiting protrusion, the outer wall of which limits and abuts against the inner top wall of the outer shell.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] By using limiting steps and bone positions to fix the upper and lower limits of the magnetic components, the ease of installation and stability of use of the magnetic components are effectively improved. At the same time, this fixing method is not only simple and durable in structure and easy to produce and develop, which is conducive to large-scale production of enterprises, but also allows users to freely disassemble and assemble the inner shell, outer shell and magnetic components, which facilitates subsequent cleaning and maintenance, effectively improving the user's convenience and user experience. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0021] Figure 2 This is an exploded view of the entire utility model.

[0022] Figure 3 This is a top view of the present invention.

[0023] Figure 4 for Figure 3 PP sectional view.

[0024] Figure 5 for Figure 4 Enlarged view of point M.

[0025] Figure 6 This is a schematic diagram of the top surface of the magnetic suction component of this utility model.

[0026] Figure 7 for Figure 3 A QQ cross-sectional view.

[0027] Figure 8 This is a schematic diagram of the inner shell and outer shell of this utility model.

[0028] Figure 9 This is a schematic diagram of the assembly of the inner shell and outer shell of this utility model.

[0029] Figure 10 This is a schematic diagram of the air guide plate structure of this utility model.

[0030] Reference numerals: 1. Inner shell; 11. Connecting part; 111. Limiting step; 12. Air guide part; 13. First transition surface; 131. Slot; 132. First guide section; 14. Second reinforcing rib; 15. Air inlet; 16. Air outlet; 17. Air guide cavity; 171. Air guide plate; 2. Outer shell; 21. Second transition surface; 211. Rib; 212. Locking block; 213. Second guide section; 22. First reinforcing rib; 3. Fixing component; 31. Limiting protrusion; 4. Mounting groove; 41. Fixing rib; 42. Base plate; 5. Magnetic suction component; 51. Covering part; 52. Non-covering part; 6. Heat dissipation cavity. Detailed Implementation

[0031] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0032] like Figure 1-5As shown, this utility model provides a magnetic suction nozzle connection structure, including an inner shell 1 and an outer shell 2. The outer shell 2 adopts a hollow design with vertically connected parts and is fitted onto at least part of the outer peripheral wall of the inner shell 1. One end of the inner shell 1 is provided with an air inlet 15 and the other end is provided with an air outlet 16. The inner shell 1 includes a hollow connecting part 11 and an air guiding part 12. The air inlet 15 is located at the end of the connecting part 11, and the air outlet 16 is located at the end of the air guiding part 12. The connecting part 11 and the interior of the air guiding part 12 form an air guiding cavity 17. The two ends of the air guiding cavity 17 are respectively connected to the air inlet 15 and the air outlet 16.

[0033] Specifically, the connecting part 11 is the non-overlapping part of the inner shell 1 and the outer shell 2. The shape of the connecting part 11 is adapted to the output end of the hair dryer, and the two are detachably and fit together. In this embodiment, the connecting part 11 is preferably a cylindrical structure, while the air guide part 12 is a "straight line" structure, so that the airflow output from the hair dryer passes through the connecting part 11 and the air guide cavity 17 in sequence and is blown out from the air outlet 16 in a "straight line" shape. It should be noted that in actual production, the air guide part 12 can also be a hair curler, a concentrator nozzle, a diffuser nozzle, a guide comb, etc., to achieve the user's purposes of curling hair, precise drying, volumizing care, and straightening hair, respectively.

[0034] To further improve the ease of detachment of the nozzle and the hair dryer, the nozzle and the hair dryer are magnetically attached together using a magnetic attachment 5. Specifically, a fixing member 3 is fitted around the outer periphery of the connecting part 11, with the bottom of the fixing member 3 abutting against the top of the outer shell 2. The height of the connecting part 11 is greater than the height of the fixing member 3, so that at least a portion of the connecting part 11 extends upward and beyond the upper end of the fixing member 3, for fitting and connecting with the hair dryer, thereby improving the connection stability and airtightness of the nozzle and the hair dryer. At the same time, a vertically penetrating mounting groove 4 is formed between the inner wall of the fixing member 3 and the outer wall of the connecting part 11, and the magnetic attachment 5 is disposed within the mounting groove 4.

[0035] Among them, such as Figure 5-6As shown, the outer wall of the connecting part 11 is provided with a limiting step 111 corresponding to the upper opening position of the mounting groove 4. The limiting step 111 abuts against one side of the top surface of the magnetic member 5 to fix the magnetic member 5. At the same time, it divides the top surface of the magnetic member 5 into a covering part 51 that is abutted and covered by the limiting step 111 and a non-covering part 52 that is in direct contact with the hair dryer. The width A of the non-covering part 52 is much larger than the width B of the covering part 51. This ensures that the magnetic member 5 has a stable fixing effect on the connecting part 11, while effectively increasing the magnetic attraction area between the magnetic member 5 and the hair dryer, thereby increasing the magnetic attraction force between the two and making the connection more secure. The inner wall of the outer shell 2 is provided with a bone position 211 extending upward and from the lower opening of the mounting groove 4 into the mounting groove 4. The free end of the bone position 211 abuts against the bottom surface of the magnetic suction member 5. The upper and lower fixed positioning of the magnetic suction member 5 is achieved by the upper and lower abutting cooperation between the limiting step 111 and the bone position 211. Compared with the glue bonding of the prior art, the fixing structure is simpler and more durable, and the production and development difficulty is small, which is conducive to the large-scale production of enterprises. At the same time, users can also freely disassemble and assemble the inner shell 1, outer shell 2 and magnetic suction member 5, which facilitates subsequent cleaning and maintenance, effectively improving the user's convenience and user experience.

[0036] In one embodiment, the mounting groove 4 is an annular structure surrounding the connecting part 11, and the magnetic suction member 5 is also an annular structure adapted to the mounting groove 4. At this time, the limiting step 111 and the bone position 211 can be adapted to the annular structure of the magnetic suction member 5, or multiple steps can be provided and spaced apart to achieve upper and lower contact and fixation with the magnetic suction member 5.

[0037] In this embodiment, such as Figure 3 As shown, the connecting part 11 and the fixing member 3 are fixedly connected by a plurality of radially extending and spaced fixing ribs 41, so that the connecting part 11 and the fixing member 3 are integrally formed. During production, the connecting part 11, the fixing member 3 and the air guide part 12 can be integrally injection molded. At this time, the adjacent fixing ribs 41, the connecting part 11 and the fixing member 3 together form the mounting groove 4, so that the mounting groove 4 has an arc-shaped structure and is spaced by the fixing ribs 41 to form a plurality of grooves. The plurality of mounting grooves 4 are arranged in a ring around the connecting part 11.

[0038] Among them, such as Figure 7 As shown, in order to further improve the connection stability between the fixing member 3 and the connecting part 11, a bottom plate 42 may be provided at the bottom of some of the mounting grooves 4. The bottom plate 42 can replace the bone position 211 to support and fix the bottom of the magnetic suction member 5 located in the mounting groove 4.

[0039] Preferably, the magnetic suction element 5 is a magnet or a magnetic metal material, and the magnetic suction element 5 located at the output end of the hair dryer is a magnetic metal material or a magnet.

[0040] Specifically, such as Figure 8-9 As shown, a conical first transition surface 13 connects the connecting part 11 and the air guide part 12 on the front and rear end faces of the inner shell 1. The diameter of the first transition surface 13 gradually decreases from the air inlet 15 to the air outlet 16. The outer shell 2 is provided with a second transition surface 21 that matches the first transition surface 13. During installation, the outer shell 2 is fitted onto the inner shell 1 from the air outlet 16 to the air inlet 15. The outer shell 2 covers the side wall of the air guide part 12, and the top wall of the outer shell 2 abuts against the bottom wall of the fixing member 3. At this time, the second transition surface 21 covers the outside of the first transition surface 13. Through the setting of the first transition surface 13, the airflow entering the air guide cavity 17 from the air inlet 15 can flow evenly into the air guide part 12 and then be blown out evenly from the air outlet 16. This guides the airflow to reduce convection in the inner shell 1, further improving the air outlet efficiency and air volume.

[0041] Furthermore, to improve the connection stability between the inner shell 1 and the outer shell 2, an inwardly extending locking block 212 is provided on the inner side of the second transition surface 21, and a locking groove 131 is provided on the first transition surface 13 to engage with the locking block 212; at the same time, to improve the ease of engagement between the locking block 212 and the locking groove 131, the outer side wall of the bottom wall of the locking groove 131 is a first guide section 132 that is obliquely upward and extends outward, and the end wall of the free end of the locking block 212 is provided with a second guide section corresponding to the first guide section 132. Guide surface 213; With the setting of the first guide surface 132 and the second guide surface 213, during installation, when the locking block 212 abuts against the lower part of the slot 131 and continues to move upward, under the guiding action of the first guide surface 132 and the second guide surface 213, the locking block 212 drives the second transition surface 21 to deform and expand outward, thereby sliding and locking into the slot 131, making the locking more effortless and convenient, and at the same time improving the disassembly durability of the locking block 212 and the slot 131;

[0042] It should be noted that in actual production, the positions of the card block 212 and the card slot 131 can also be set at any overlapping position on the inner shell 1 and the outer shell 2, and their positions can also be interchanged on the inner shell 1 and the outer shell 2.

[0043] Preferably, such as Figure 8As shown in the left figure, the top or bottom surface of the card block 212 is connected to the inner wall of the outer shell 2 by a number of first reinforcing ribs 22 for improving the structural strength of the card block 212.

[0044] Specifically, such as Figure 8 As shown in the right figure, the first transition surface 13 and the outer wall of the air guide 12 (i.e., the overlapping part of the inner shell 1 and the outer shell 2) are provided with a plurality of outwardly protruding second reinforcing ribs 14. In this embodiment, the extension direction of each second reinforcing rib 14 is consistent and extends from the air inlet 15 to the air outlet 16. During installation, the outer shell 2 is sleeved on the outer periphery of the inner shell 1, and the second reinforcing ribs 14 abut against the inner side of the outer shell 2, thereby playing a supporting role for the outer shell 2, and at the same time effectively enhancing the overall structural strength of the inner shell 1 and the outer shell 2.

[0045] Furthermore, such as Figure 10 As shown, since the airflow from the hair dryer can be hot air, when the hot air flows through the inner shell 1, the inner shell 1 and the outer shell 2 absorb the heat of the hot air in sequence and heat up rapidly. After prolonged use, there may be a risk of scalding the user. Therefore, by setting the second reinforcing rib 14, a heat dissipation cavity 6 for air circulation is formed between the inner shell 1 and the outer shell 2. The opening of the heat dissipation cavity 6 is connected to the air outlet 16. By setting the heat dissipation cavity 6, the outer shell 2 and the inner shell 1 are at least partially spaced apart, which further reduces the heat absorption efficiency of the outer shell 2. At the same time, the air in the heat dissipation cavity 6 further blocks the heat transfer between the inner shell 1 and the outer shell 2, effectively reducing the temperature of the outer shell 2, thereby improving the user experience.

[0046] Specifically, such as Figure 7 As shown, in order to improve the connection stability of the inner shell 1 and the outer shell 2 after assembly, the bottom of the fixing member 3 is also provided with a downwardly extending limiting protrusion 31; after installation, the top end of the outer shell 2 is limited and abutted against the bottom end of the fixing member 3, and at this time the outer wall of the limiting protrusion 31 is limited and abutted against the top inner wall of the outer shell 2, thereby preventing the horizontal shaking of the outer shell 2, making the connection between the inner shell 1 and the outer shell 2 more stable and firm.

[0047] Specifically, such as Figure 10 As shown, at least one air guide plate 171 is also provided in the air guide cavity 17. In this embodiment, there are two air guide plates 171 and they are symmetrically arranged on both sides of the first transition surface 13. The air guide plates 171 can not only effectively guide the airflow direction in the air guide cavity 17, but also support the air guide cavity 17, thereby effectively improving the overall structural strength of the air guide cavity 17.

[0048] The following is a detailed explanation of the working principle of this utility model;

[0049] During installation, the inner shell 1 is first inverted, and then the magnetic suction member 5 is placed from top to bottom in the mounting groove 4. At this time, the limiting step 111 in the connecting part 11 is exactly abutted and fixed to the bottom of the magnetic suction member 5 to ensure that the magnetic suction member 5 is stably locked in the mounting groove 4.

[0050] Next, the outer shell 2 is fitted onto the inner shell 1 from top to bottom, so that the rib 211 of the outer shell 2 extends into the mounting groove 4 and abuts against and fixes the top surface of the magnetic suction member 5. At this time, the locking block 212 on the outer shell 2 is locked into the locking groove 131 on the inner shell 1, thereby realizing the integrated fixation of the inner shell 1, the outer shell 2 and the magnetic suction member 5.

[0051] The innovation of this utility model lies in the upper and lower limit fixing of the magnetic component through the limiting steps and bone positions, which effectively improves the installation convenience and usage stability of the magnetic component. At the same time, this fixing method is not only simple and durable in structure and easy to produce and develop, which is conducive to large-scale production of enterprises, but also facilitates the user's free disassembly and assembly of the inner shell, outer shell and magnetic component, which is convenient for subsequent cleaning and maintenance, and effectively improves the user's convenience and user experience.

[0052] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other implementations that can be understood by those skilled in the art.

[0053] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A magnetic air nozzle connection structure, characterized by, It includes an inner shell (1) and an outer shell (2). The outer shell (2) is fitted onto the outer peripheral wall of the inner shell (1). The inner shell (1) includes a hollow connecting part (11) and an air guide part (12). A fixing part (3) is fitted onto the outer periphery of the connecting part (11). A vertically penetrating mounting groove (4) is formed between the inner wall of the fixing part (3) and the outer wall of the connecting part (11). A magnetic suction part (5) is provided in the mounting groove (4). The outer wall of the connecting part (11) is provided with a limiting step (111) that abuts against the top surface of the magnetic suction member (5), and the inner wall of the outer shell (2) is provided with a bone position (211) extending into the mounting groove (4), and the free end of the bone position (211) abuts against the bottom surface of the magnetic suction member (5).

2. The magnetic suction nozzle connection structure according to claim 1, characterized in that, The top surface of the magnetic suction member (5) includes a covered part (51) and a non-covered part (52). The covered part (51) is abutted against the limiting step (111). The width A of the non-covered part (52) is greater than the width B of the covered part (51).

3. The magnetic air nozzle connecting structure according to claim 2, wherein The mounting groove (4) has an arc-shaped structure and is provided in multiple ways. The multiple mounting grooves (4) are arranged in a ring-shaped interval around the connecting part (11).

4. The magnetic suction air nozzle connecting structure according to any one of claims 1-3, characterized in that, The magnetic accumulator (5) is a magnet or a magnetic metal material.

5. The magnetic air nozzle connecting structure according to claim 1, wherein Located on the front and rear end faces of the inner shell (1), the connecting part (11) and the air guide part (12) are connected by a symmetrically arranged conical first transition surface (13), and the outer shell (2) is provided with a second transition surface (21) that matches the first transition surface (13).

6. The magnetic air nozzle connection structure of claim 5, wherein, The second transition surface (21) is provided with an inwardly extending locking block (212), and the first transition surface (13) is provided with a locking groove (131) that engages with the locking block (212).

7. The magnetic air nozzle connection structure of claim 6, wherein, The outer side of the bottom wall of the slot (131) is provided with a first guide surface (132) that extends obliquely upward and outward, and the end wall of the free end of the card block (212) is provided with a second guide surface (213) that corresponds to the first guide surface (132).

8. The magnetic air nozzle connection structure of claim 6, wherein, The top surface of the card block (212) is connected to the inner wall of the outer shell (2) by a number of first reinforcing ribs (22).

9. The magnetic suction nozzle connection structure according to claim 5, characterized in that, The first transition surface (13) and the outer wall of the air guide (12) are provided with a number of outwardly protruding second reinforcing ribs (14), so that a heat dissipation cavity (6) is formed between the inner shell (1) and the outer shell (2).

10. The magnetic air nozzle connecting structure according to claim 1, wherein The bottom of the fastener (3) is provided with a downwardly extending limiting protrusion (31), and the outer wall of the limiting protrusion (31) abuts against the top inner wall of the outer shell (2).

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