Straight-tube hair drier

Abstract

The utility model relates to the technical field of hair driers, and provides a straight-tube hair dryer which comprises an outer shell, a first inner shell and a second inner shell. The shell is in a straight cylinder shape and is integrally formed, and a through first clamping groove is formed in the inner wall of the shell in the length direction of the shell. The first inner shell and the second inner shell are arranged along the length of the hair dryer body, the first inner shell and the second inner shell are connected in a clamped mode and jointly form a cylindrical inner shell of the hair dryer, a first protruding strip is arranged on the outer wall of the inner shell, and when the inner shell is inserted into the outer shell, the first protruding strip is clamped in the first clamping groove; a PCB, a draught fan, a heating assembly and a flow guide part are sequentially arranged in the inner shell in the length direction of the inner shell. The outer shell is free of splicing traces, the number of components of the inner shell is small, assembling is convenient, and the assembling efficiency is high.

Description

Technical Field

[0001] The present application relates to the technical field of hair dryers, and in particular to a straight-tube hair dryer. Background Art

[0002] High-speed hair dryers have gradually become mainstream products in the market. Unlike ordinary hair dryers, high-speed hair dryers use brushless motors. The impeller driven by the motor can achieve sufficiently strong wind force, which can achieve a strong and quick-drying effect when blowing hair. At the same time, brushless motors not only have higher speeds, but also have greater wind force, less noise, and longer life. At present, straight-tube high-speed hair dryers are favored by users because of their small footprint, easy to carry and store. However, the straight-tube high-speed hair dryers currently on the market have the following disadvantages: 1. The outer shell is spliced ​​from multiple parts, and the splicing marks are obvious; 2. The inner shell is assembled from multiple sections and parts, with many assembly processes and low assembly efficiency. Utility Model Content

[0003] In order to solve the above problems, the present application provides a straight-tube hair dryer with ingenious design, simple structure, one-piece outer shell, no splicing marks, good integrity, not easy to damage and beautiful appearance, few inner shell components, easy assembly and disassembly, and high assembly efficiency. The technical solutions adopted in the present application are as follows:

[0004] A straight-tube hair dryer comprises: an outer shell, a first inner shell, and a second inner shell;

[0005] The outer shell is straight cylindrical and integrally formed, and the inner wall of the outer shell is provided with a first slot along the length direction of the outer shell; the first inner shell and the second inner shell are arranged along the length of the hair dryer body, the first inner shell and the second inner shell are snap-connected and combined together to form a cylindrical inner shell of the hair dryer, and the outer wall of the inner shell is provided with a first convex strip, and when the inner shell is inserted into the outer shell, the first convex strip is snapped into the first slot; a PCB board, a fan, a heating assembly, and a guide member are arranged in sequence in the inner shell along the length direction of the inner shell.

[0006] In the present application, the one-piece molding of the outer shell can avoid the generation of splicing seams or splicing marks on the surface of the outer shell, improve the integrity of the outer shell, and reduce the risk of damage to the outer shell; the first inner shell and the second inner shell are arranged throughout the length and are combined into an inner shell by snapping, which can reduce the number of components (parts), improve the assembly efficiency of the inner shell, and improve the integrity and strength of the inner shell; by snapping the first convex strip into the first slot, the rotation of the inner shell relative to the outer shell can be avoided, the connection stability between the inner shell and the outer shell can be improved, and the risk of the components being scattered when the hair dryer falls can be reduced.

[0007] In some embodiments, there is a preset interval between the fan and the heating assembly, and a groove is provided at the inner shell corresponding to the preset interval, the groove protrudes from the inner wall of the inner shell, and the groove is used to accommodate a switch key.

[0008] By setting the groove, on the one hand, the switch key can be accommodated without increasing the outer diameter of the hair dryer. On the other hand, the groove protrudes from the inner wall of the inner shell, that is, the cross-section of the inner shell corresponding to the groove is reduced, and the airflow will be accelerated when passing through the reduced cross-section, so that the wind speed of the hair dryer can be increased.

[0009] In some embodiments, one end of the inner shell inserted into the outer shell is in a frustum shape to facilitate the inner shell to be inserted into the outer shell.

[0010] By setting the end of the inner shell inserted into the outer shell to be truncated cone-shaped, that is, the cross-sectional size of the end of the inner shell inserted into the outer shell is gradually reduced, which plays a guiding role and facilitates the insertion of the inner shell into the outer shell.

[0011] In some embodiments, a flared opening is provided at the entrance of the first slot, and the flared opening facilitates the insertion of the first convex strip.

[0012] By providing the flared opening, the first convex strip can be easily placed in the flared opening without the need for precise alignment of the first convex strip with the first slot. The flared opening plays a guiding role, facilitating the first convex strip to enter the first slot.

[0013] In some embodiments, the first inner shell is provided with a plurality of locking tongues, the locking tongues are located at the edge of the first inner shell and are spaced apart along the length direction of the first inner shell; the second inner shell is provided with a plurality of locking buckles, the locking buckles are adapted to the locking tongues.

[0014] By providing a locking tongue and a locking buckle, the assembly efficiency of the first inner shell and the second inner shell can be improved while ensuring the connection stability between the first inner shell and the second inner shell, so that the first inner shell and the second inner shell are not easily separated accidentally.

[0015] In some embodiments, an edge of the first inner shell and an edge of the second inner shell are interlocked.

[0016] In some embodiments, a second groove is formed at an edge of the first inner shell, and a second convex strip is formed at an edge of the second inner shell. When the first inner shell and the second inner shell are snapped together, the second convex strip is embedded in the second groove to seal the contact surface between the first inner shell and the second inner shell.

[0017] By embedding (snapping) the second convex strip into the second slot, it is equivalent to sealing the contact surface between the first inner shell and the second inner shell, reducing the risk of airflow leakage in the inner shell at the connection between the first inner shell and the second inner shell, and improving the connection stability between the first inner shell and the second inner shell.

[0018] In some embodiments, a honeycomb mesh is provided on the air inlet side of the fan, and the honeycomb mesh is used for rectification.

[0019] By setting up a honeycomb net, the airflow entering the fan can be rectified, reducing the impact of turbulence on the airflow velocity and reducing wind noise.

[0020] In some embodiments, the fan is provided with an anti-twist guide vane. The airflow passing through the impeller of the fan often rotates. The anti-twist guide vane (stationary) can eliminate or reduce the rotation of the airflow, so that the airflow maintains a single axial flow, reduces the energy loss of the airflow during the flow process, and reduces the vibration and noise caused by the airflow.

[0021] In some embodiments, the fan jacket is provided with a vibration-damping rubber sleeve.

[0022] By setting the vibration-damping rubber sleeve, the vibration energy of the fan during operation can be absorbed, the overall vibration and noise of the hair dryer can be reduced, and the user experience can be improved.

[0023] The straight-tube hair dryer provided in the present application has at least one of the following beneficial effects:

[0024] 1. The straight-tube hair dryer provided by the present application has an integrally formed outer shell, which can avoid the generation of splicing seams or splicing marks on the outer shell surface, improve the integrity of the outer shell, and reduce the risk of damage to the outer shell; the first inner shell and the second inner shell are arranged through the entire length and are assembled into the inner shell by snapping, which can reduce the number of components (parts), improve the assembly efficiency of the inner shell, and improve the integrity and strength of the inner shell; the first convex strip is snapped into the first slot, which can avoid the rotation of the inner shell relative to the outer shell, improve the connection stability between the inner shell and the outer shell, and reduce the risk of the components being scattered when the hair dryer falls;

[0025] 2. The straight-tube hair dryer provided by the present application has a groove, which can accommodate the switch key without increasing the outer diameter of the hair dryer. On the other hand, the groove protrudes from the inner wall of the inner shell, that is, the cross section of the inner shell corresponding to the groove is reduced, and the airflow is accelerated when passing through the reduced cross section, so that the wind speed of the hair dryer can be increased;

[0026] 3. The straight-tube hair dryer provided by the present application is configured such that the end of the inner shell inserted into the outer shell is truncated into a cone shape, that is, the cross-sectional dimension of the end of the inner shell inserted into the outer shell is gradually reduced, which plays a guiding role and facilitates the insertion of the inner shell into the outer shell;

[0027] 4. The straight-tube hair dryer provided by the present application has a flared opening, so that the first convex strip can be easily placed in the flared opening without the need for precise alignment of the first convex strip with the first slot. The flared opening plays a guiding role, facilitating the first convex strip to enter the first slot.

[0028] 5. The straight-tube hair dryer provided in the present application can improve the assembly efficiency of the first inner shell and the second inner shell while ensuring the connection stability between the first inner shell and the second inner shell by providing a locking tongue and a locking buckle, so that the first inner shell and the second inner shell are not easily separated accidentally;

[0029] 6. The straight-tube hair dryer provided by the present application has a second protruding strip embedded (stuck into) in the second slot, which is equivalent to sealing the contact surface between the first inner shell and the second inner shell, thereby reducing the risk of leakage of the airflow in the inner shell at the connection between the first inner shell and the second inner shell, and improving the connection stability between the first inner shell and the second inner shell;

[0030] 7. The straight-tube hair dryer provided in the present application can rectify the airflow entering the blower by setting a honeycomb net, reduce the impact of turbulence on the airflow velocity, and reduce wind noise;

[0031] 8. The present application provides a straight-tube hair dryer, in which the airflow passing through the impeller of the blower often rotates. By providing a reverse-twist guide vane (stationary), the airflow rotation can be eliminated or weakened, so that the airflow maintains a single axial flow, reduces the energy loss of the airflow during the flow process, and at the same time reduces the vibration and noise caused by the airflow flow;

[0032] 9. The straight-tube hair dryer provided in the present application can absorb the vibration energy of the blower when it is working by setting a vibration-damping rubber sleeve, reduce the overall vibration and noise of the hair dryer, and improve the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The following will explain the preferred implementation mode in a clear and understandable manner with reference to the accompanying drawings, and further explain the above characteristics, technical features, advantages and implementation methods of a straight-tube hair dryer:

[0034] Figure 1 This is a schematic diagram of the structure after the inner shell of the embodiment of the present application is disassembled;

[0035] Figure 2 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0036] Figure 3 is a schematic diagram of the housing structure of an embodiment of the present application;

[0037] Figure 4 It is a schematic diagram of the overall structure of the embodiment of the present application after the outer shell is removed;

[0038] Figure 5 yes Figure 4 Another perspective of the embodiment;

[0039] Figure 6 This is a schematic diagram of the structure of one end of the inner shell of an embodiment of the present application;

[0040] Figure 7 yes Figure 1 Another perspective of the embodiment;

[0041] Figure 8 is a schematic structural diagram of the first inner shell of an embodiment of the present application;

[0042] Fig. 9 yes Figure 4 Schematic diagram of the embodiment after cutting;

[0043] Fig.10 It is a schematic diagram of the structure of the anti-twist guide vane according to an embodiment of the present application.

[0044] Description of Figure Numbers:

[0045] Outer shell 1, inner shell 2, first inner shell 3, second inner shell 4, first card slot 5, first convex strip 6, PCB board 7, fan 8, heating assembly 9, guide piece 10, groove 11, switch key 12, flaring 13, locking tongue 14, lock buckle 15, second card slot 16, second convex strip 17, honeycomb mesh 18, anti-torsion guide plate 19, vibration-damping rubber sleeve 20. DETAILED DESCRIPTION

[0046] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the specific implementation methods of the present application will be described below with reference to the accompanying drawings. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0047] In order to simplify the drawings, only the parts related to the present application are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically drawn or marked. In this article, "one" not only means "only one", but also means "more than one".

[0048] It should be further understood that the term “and / or” used in the specification and appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0049] In this document, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0050] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0051] refer to Figure 1-Figure 10 , the present application provides a straight-tube hair dryer, comprising: an outer shell 1, a first inner shell 3, and a second inner shell 4;

[0052] The outer shell 1 is straight and integrally formed, and the inner wall of the outer shell 1 is provided with a first slot 5 along the length direction of the outer shell 1; the first inner shell 3 and the second inner shell 4 are arranged along the length of the hair dryer body, the first inner shell 3 and the second inner shell 4 are snap-connected and combined together to form a cylindrical inner shell 2 of the hair dryer, and the outer wall of the inner shell 2 is provided with a first convex strip 6, and the first convex strip 6 is snap-fitted into the first slot 5 when the inner shell 2 is inserted into the outer shell 1; the inner shell 2 is provided with a PCB board 7, a fan 8, a heating assembly 9, and a guide member 10 in sequence along the length direction of the inner shell 2.

[0053] In this embodiment, the outer shell 1 is integrally formed to avoid splicing seams or splicing marks on the surface of the outer shell 1, thereby improving the integrity of the outer shell 1 and reducing the risk of damage to the outer shell 1; the first inner shell 3 and the second inner shell 4 are arranged throughout the entire length and are combined into the inner shell 2 by snap-fitting, which can reduce the number of components (parts), improve the assembly efficiency of the inner shell 2, and improve the integrity and strength of the inner shell 2; the first convex strip 6 is snapped into the first slot 5 to avoid the rotation of the inner shell 2 relative to the outer shell 1, thereby improving the connection stability between the inner shell 2 and the outer shell 1 and reducing the risk of the components being scattered when the hair dryer falls.

[0054] refer to Figure 1 , Figure 7 , Fig. 9 In one embodiment, there is a preset interval between the fan 8 and the heating assembly 9, and a groove 11 is provided at the inner shell 2 corresponding to the preset interval. The groove 11 protrudes from the inner wall of the inner shell 2, and the groove 11 is used to accommodate the switch key 12.

[0055] It is worth noting that by providing the groove 11, on the one hand, the switch key 12 can be accommodated without increasing the outer diameter of the hair dryer. On the other hand, the groove 11 protrudes from the inner wall of the inner shell 2, that is, the cross-section of the inner shell 2 corresponding to the groove 11 is reduced, and the airflow will be accelerated when passing through the reduced cross-section, so that the wind speed of the hair dryer can be increased.

[0056] refer to Figure 6-Figure 8 In one embodiment, one end of the inner shell 2 inserted into the outer shell 1 is in a frustum shape (not shown) to facilitate the insertion of the inner shell 2 into the outer shell 1.

[0057] It can be understood that by setting the end of the inner shell 2 inserted into the outer shell 1 to be truncated into a cone shape, that is, the cross-sectional size of the end of the inner shell 2 inserted into the outer shell 1 is gradually reduced, which plays a guiding role and facilitates the insertion of the inner shell 2 into the outer shell 1.

[0058] refer to Figure 3 In one embodiment, a flared opening 13 is provided at the entrance of the first slot 5 , and the flared opening 13 facilitates the insertion of the first convex strip 6 .

[0059] It is understandable that by providing the flared opening 13 , the first ridge 6 can be easily placed in the flared opening 13 without the need for precise alignment of the first ridge 6 with the first slot 5 . The flared opening 13 serves as a guide to facilitate the first ridge 6 to enter the first slot 5 .

[0060] refer to Figure 1 , Figure 4-Figure 8 In one embodiment, the first inner shell 3 is provided with a plurality of locking tongues 14 , which are located at the edge of the first inner shell 3 and are spaced apart along the length direction of the first inner shell 3 ; the second inner shell 4 is provided with a plurality of locking buckles 15 , which are matched with the locking tongues 14 .

[0061] In this embodiment, by providing the locking tongue 14 and the locking buckle 15, the assembly efficiency of the first inner shell 3 and the second inner shell 4 can be improved while ensuring the connection stability between the first inner shell 3 and the second inner shell 4, so that the first inner shell 3 and the second inner shell 4 are not easily separated accidentally.

[0062] In one embodiment, the edge of the first inner shell 3 and the edge of the second inner shell 4 are embedded with each other.

[0063] refer to Figure 1 , Figure 7 , Figure 8 In one embodiment, a second card groove 16 is provided on the edge of the first inner shell 3, and a second convex strip 17 is provided on the edge of the second inner shell 4. When the first inner shell 3 and the second inner shell 4 are snapped together, the second convex strip 17 is embedded in the second card groove 16 to seal the contact surface between the first inner shell 3 and the second inner shell 4.

[0064] It is worth noting that by embedding (snapping) the second convex strip 17 into the second card groove 16, it is equivalent to sealing the contact surface between the first inner shell 3 and the second inner shell 4, reducing the risk of leakage of the airflow in the inner shell 2 at the connection between the first inner shell 3 and the second inner shell 4, and at the same time improving the connection stability between the first inner shell 3 and the second inner shell 4.

[0065] refer to Figure 1 , Figure 7 , Fig. 9 , Fig.10 In one embodiment, a honeycomb mesh 18 is provided on the air inlet side of the fan 8, and the honeycomb mesh 18 is used for rectification.

[0066] It can be understood that by providing the honeycomb mesh 18, the airflow entering the fan 8 can be rectified, reducing the impact of turbulence on the airflow velocity and reducing wind noise.

[0067] refer to Fig. 9 , Fig.10 In one embodiment, the fan 8 is provided with an anti-twist guide vane 19. The airflow passing through the impeller (not shown) in the fan 8 often rotates. The anti-twist guide vane 19 (stationary) can eliminate or reduce the rotation of the airflow, so that the airflow maintains a single axial flow, reduces the energy loss of the airflow during the flow process, and reduces the vibration and noise caused by the flow of the airflow.

[0068] refer to Figure 1 , Figure 7 , Fig. 9 , Fig.10 In one embodiment, a vibration-damping rubber sleeve 20 is provided on the outer jacket of the fan 8 .

[0069] It can be understood that by providing the vibration-damping rubber sleeve 20, the vibration energy of the fan 8 during operation can be absorbed, the overall vibration and noise of the hair dryer can be reduced, and the user experience can be improved.

[0070] It should be noted that the above embodiments can be freely combined as needed. The above are only preferred implementations of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application, and these improvements and modifications should also be regarded as the protection scope of the present application.

Claims

1. A straight hair dryer, characterized in that: include: An outer shell, a first inner shell, and a second inner shell; The shell is straight-cylindrical and integrally formed, and the inner wall of the shell is provided with a first slot extending along the length direction of the shell; The first inner shell and the second inner shell are arranged along the entire length of the hair dryer body, the first inner shell and the second inner shell are snap-fitted and combined together to form a cylindrical inner shell of the hair dryer, the outer wall of the inner shell is provided with a first convex strip, and when the inner shell is inserted into the outer shell, the first convex strip is snapped into the first slot; A PCB board, a fan, a heating component, and a flow guide are arranged in sequence in the inner shell along the length direction of the inner shell.

2. A straight hair dryer according to claim 1, characterized in that: There is a preset interval between the fan and the heating assembly, and a groove is provided at the inner shell corresponding to the preset interval. The groove protrudes from the inner wall of the inner shell, and the groove is used to accommodate a switch key.

3. A straight hair dryer according to claim 2, characterized in that: One end of the inner shell inserted into the outer shell is in a truncated cone shape, so as to facilitate the inner shell to be inserted into the outer shell.

4. A straight hair dryer according to claim 3, characterized in that: An expansion opening is provided at the entrance of the first slot, and the expansion opening facilitates the insertion of the first convex strip.

5. A straight hair dryer according to any one of claims 1 to 4, characterized in that: The first inner shell is provided with a plurality of locking tongues, which are located at the edge of the first inner shell and are arranged at intervals along the length direction of the first inner shell; the second inner shell is provided with a plurality of locking buckles, which are matched with the locking tongues.

6. A straight hair dryer according to claim 5, characterized in that: The edge of the first inner shell and the edge of the second inner shell are embedded with each other.

7. A straight hair dryer according to claim 6, characterized in that: A second slot is formed at the edge of the first inner shell, and a second convex strip is formed at the edge of the second inner shell. When the first inner shell and the second inner shell are snap-fitted, the second convex strip is embedded in the second slot to seal the contact surface between the first inner shell and the second inner shell.

8. A straight hair dryer according to claim 7, characterized in that: A honeycomb mesh is provided on the air inlet side of the fan, and the honeycomb mesh is used for rectification.

9. A straight hair dryer according to any one of claims 1-4, 6-8, characterized in that: The fan is provided with an anti-torsion guide vane.

10. A straight hair dryer according to claim 9, characterized in that: The fan outer jacket is provided with a vibration-damping rubber sleeve.

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