Three-cavity flexible pipe fixing structure and hair straightener

Abstract

The three-cavity flexible pipe fixing structure comprises a three-way pipe body integrally formed by soft materials, one end of the three-way pipe body is provided with an installation portion used for installing a fan, the other two ends of the three-way pipe body are provided with air outlet portions with air channels, and the three-way pipe body and the air outlet portions are symmetrically arranged at intervals and reversely extend relative to the installation portion. The utility model discloses a hair straightener, which comprises two air outlet parts, the air outlet parts are arranged at the two ends of the air outlet part, positioning pieces are arranged on the outer sides of the two air outlet parts, at least one positioning hole is formed in each positioning piece, the positioning holes are matched with positioning pins for use, and the positioning pins are fixedly arranged on the outer side of an air cavity of the hair straightener. And in addition, a fixing point can be provided for the air outlet part, and the stability of the product is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of hair care, in particular to a three-cavity flexible tube fixing structure and a hair straightener. Background Art

[0002] Hair straighteners with air outlet functions are all provided with connectors with air ducts, which mainly play the role of sealing and airflow delivery. However, the current connectors are not very sealed, and are prone to air leakage, which affects the blowing effect. Therefore, application number 2023230744829 is proposed, a three-cavity flexible tube for a hair straightener, which can make the inner cavity side wall and the outer peripheral wall of the fan close together by friction, and can achieve good airtight effect. In addition, such a design can omit the intermediate components, reduce the workload of object management, and improve airtightness to prevent air leakage.

[0003] Based on the above three-cavity flexible tube, there are still installation problems in practical application. The air outlet part uses elastic deformation to directly cover the periphery of the air cavity of the clamp arm. The installation is unstable and laborious, which is not conducive to batch installation on the factory assembly line and cannot guarantee the quality of batch assembly production. Utility Model Content

[0004] The purpose of the utility model is to provide a three-cavity flexible tube fixing structure and a hair straightener to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A three-chamber flexible tube fixing structure, which is used in a hair straightener, comprises a three-way tube body integrally formed of a soft material, one end of the three-way tube body forms a mounting portion for mounting a fan, and the other two ends form air outlet portions with air ducts, which are symmetrically arranged at intervals and extend in the opposite direction relative to the mounting portion;

[0007] A positioning piece is provided on the outside of the two air outlets, and at least one positioning hole is provided in the positioning piece. The positioning hole is used in conjunction with a positioning pin, and the positioning pin is fixedly arranged on the outside of the air cavity of the hair straightener.

[0008] According to a further technical solution, the air outlet portion is detachably connected to the positioning member, the positioning member includes a fixing ring, a buckle is provided on the fixing ring, positioning portions are provided on both sides, the positioning portions are provided with positioning holes, a card slot is provided on the outer side of the air outlet portion, and a card hole connected to the card slot.

[0009] According to a further technical solution, the inner cavity side wall of the mounting portion is in close contact with the outer periphery of the fan, and the air outlet of the fan corresponds to the air outlet portions at both ends.

[0010] According to a further technical solution, a limiting groove is provided on the surface of the mounting portion, and a mounting frame is clamped in the limiting groove and is used for connecting internal components of the hair straightener.

[0011] According to a further technical solution, the cross section of the air outlet portion is elliptical, and there is an arc transition between the inner cavity of the mounting portion and the inner wall of the airway.

[0012] According to a further technical solution, a "U"-shaped groove is provided at the end of the air outlet portion, and a plug-in portion is provided at the end of the fixing ring. The plug-in portion is placed in the "U"-shaped groove and is tightly attached to the side wall of the "U"-shaped groove.

[0013] A hair straightener comprises a main body and a three-way pipe body, wherein the main body is rotatably connected with a first clamp arm and a second clamp arm, a mounting portion of the three-way pipe body is fixedly arranged in the main body, two air outlet portions are respectively connected with the first clamp arm and the second clamp arm, and an inner cavity airway is respectively connected with the first clamp arm and the second clamp arm.

[0014] According to a further technical solution, a first filter is provided at the air inlet end of the main body, a second filter is installed inside the main body, and the second filter is connected to the air inlet end of the fan.

[0015] According to a further technical solution, the second filter element is cylindrical, and its air inlet end adopts a honeycomb hole design, and its outer periphery is provided with a plurality of reinforcing ribs.

[0016] A further technical solution also includes a bolt fixing member, which passes through the positioning hole and is connected to the positioning pin, and the bolt fixing member abuts against the positioning portion.

[0017] Beneficial effects of the utility model:

[0018] The utility model is provided with a positioning piece at the air outlet portion, which can realize a pre-aligned positioning mode during assembly, thereby improving assembly efficiency, and can also provide a fixing point for the air outlet portion, thereby improving the stability of the product.

[0019] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 : Schematic diagram of some components of the utility model in the assembled state.

[0021] Figure 2 : Explosion diagram of some components of the utility model.

[0022] Figure 3 : Disassembly diagram of the three-chamber flexible tube fixing structure of the utility model.

[0023] Figure 4 : A three-dimensional cross-sectional view of the three-chamber flexible tube fixing structure of the utility model

[0024] Figure markings: 1- three-way pipe body, 11- installation part, 12- air outlet part, 121- slot, 122- hole, 123- U-shaped groove, 13- positioning piece, 131- fixing ring, 132- buckle, 133- positioning part, 134- positioning hole, 135- plug-in part, 141- limiting groove, 142- mounting frame, 21- main body, 22- clamping arm one, 23- clamping arm two, 24- first filter element, 25- second filter element, 251- honeycomb hole, 252- reinforcing rib, 26- positioning pin, 3- fan. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0026] Please refer to Figure 1-4 ;

[0027] The three-chamber flexible tube fixing structure described in the utility model is intended to improve assembly efficiency and provide product stability, and specifically includes a three-way tube body 1 integrally formed of a soft material, one end of the three-way tube body 1 forms a mounting portion 11 for mounting a fan 3, and the other two ends form air outlet portions 12 with air ducts (not shown), which are symmetrically arranged at intervals and extend in the opposite direction relative to the mounting portion 11; the three-way tube body 1 in this embodiment can be made of silicone material, assuming that the fan 3 is cylindrical, then the inner cavity of the mounting portion 11 is also cylindrical, and further, The inner diameter of the mounting portion 11 can be slightly smaller than the outer diameter of the fan 3. When installing the fan 3, the fan 3 is placed in the inner cavity of the mounting portion 11 by plugging it in the way of stretching the three-way pipe body 1. The friction force can make the inner cavity side wall and the outer peripheral wall of the fan 3 close together, and at the same time, a good airtight effect can be achieved. According to the prior art, the installation of the fan 3 and the air pipe (not shown in the figure) should require a connector, but the utility model adopts such a design to omit the intermediate component, reduce the workload of object management, and at the same time improve the airtightness to prevent leakage.

[0028] A positioning member 13 is provided on the outside of the two air outlets 12, and at least one positioning hole 134 is provided in the positioning member 13. The positioning hole 134 is used in conjunction with a positioning pin 26, and the positioning pin 26 is fixedly arranged on the outside of the air cavity of the hair straightener; in this embodiment, the two air outlets 12 correspond to and are connected to the clamp arm 1 22 and the clamp arm 2 23 in the hair straightener, respectively, so that the air passage (not shown in the figure) of the air outlet 12 is communicated with the air cavity (not shown in the figure) in the clamp arm. During assembly, the air outlet of the air outlet 12 is aligned with the air inlet of the air cavity in the clamp arm, and then the air outlet 12 approaches the clamp arm. Since the positioning pin 26 will protrude from the air inlet of the air cavity, the positioning pin 26 will first be inserted into the positioning hole 134. In this embodiment, the positioning pin 26 is connected to the positioning member 13 in an interference fit manner. When the positioning pin 26 completely enters the positioning hole 134, the end of the air outlet 12 fits with the end of the clamp arm, so that the air outlet and the air inlet are butted, and the assembly is completed.

[0029] In order to further reinforce and prevent it from falling off, a bolt fixing part (not shown) can also be provided. After the locating pin 26 is connected to the locating hole 134, the bolt fixing part passes through the locating hole 134 and is threadedly connected to the locating pin 26, and the bolt fixing part abuts against the locating portion 133. In this way, the locating member 13 and the clamp arm can be firmly fixed. Of course, when this connection method is adopted, the locating pin 26 and the locating member 13 can be connected without interference fit. At this time, the locating pin 26 and the locating hole 134 form a pre-positioned structure, which is convenient for the connection of the screw fixing part.

[0030] Furthermore, the end of the positioning member 13 near the positioning hole 134 is flush with the end of the air outlet portion 12; of course, the end of the air outlet portion 12 may protrude from the end of the positioning member 13 near the positioning hole 134. When the positioning pin 26 completely enters the positioning hole 134, the end of the air outlet portion 12 will be squeezed and better fit with the end of the clamp arm, thereby improving the air tightness between the two.

[0031] The utility model is provided with a positioning member 13 at the air outlet portion 12, which can realize a pre-aligned positioning mode during assembly, thereby improving assembly efficiency, and can also provide a fixing point for the air outlet portion 12 to improve the stability of the product.

[0032] There are three implementation methods for the connection between the positioning member 13 and the air outlet portion 12 in the utility model;

[0033] In the first embodiment, since the three-way pipe body 1 is made of silicone material, the positioning member 13 can also be made of silicone material and integrally formed with the three-way pipe body 1;

[0034] In the second embodiment, based on the three-way pipe body 1 being made of silicone material, the positioning member 13 can be integrally formed with the three-way pipe body 1 by secondary injection molding of the hard rubber material;

[0035] In the third embodiment, the positioning member 13 is made of a hard material, and the positioning member 13 and the air outlet 12 are separated before assembly. Furthermore, the positioning member 13 includes a fixing ring 131, a buckle 132 is provided on the fixing ring 131, positioning portions 133 are provided on both sides, and a positioning hole 134 is provided on the positioning portion 133. The air outlet 12 is provided with a card slot 121 and a card hole 122 connected to the card slot 121 on the outside. When assembly is required, the air outlet 12 first passes through the fixing of the positioning member 13 through compression deformation. The air outlet 12 is then mounted on the outer periphery of the air outlet 12, and the fixing ring 131 enters the card slot 121, and finally the buckle 132 is buckled and connected with the card hole 122. Further, during installation, the air outlet 12 can be compressed and deformed to pass through the fixing ring 131 of the positioning member 13, so that the card slot 121 is clamped on the inner wall of the fixing ring 131, and the card slot 121 and the inner wall of the fixing ring 131 are preferentially interference-fitted, and the card hole 122 can also be compressed and deformed to be interference-fitted on the buckle 132;

[0036] In addition, a "U"-shaped groove 123 connected to the card slot 121 is provided at the end of the air outlet portion 12, and a plug-in portion 135 is provided at the end of the fixing ring 131. The plug-in portion 135 is placed in the "U"-shaped groove 123 and is tightly fitted with the side wall of the "U"-shaped groove 123 to achieve an interference fit. During installation, the plug-in portion 135 is first extended into the "U"-shaped groove 123 for positioning. When entering a certain position, the fixing ring 131 then completely enters the card slot 121, and finally the buckle 132 is buckled and connected with the card hole 122. Through the mutual cooperation between the "U"-shaped groove 123 and the plug-in portion 135, the positioning member 13 can be prevented from falling off due to deformation.

[0037] In the embodiment of the utility model, a limiting groove 141 is provided on the surface of the mounting portion 11, and a mounting frame 142 is clamped in the limiting groove 141. The function of the mounting frame 142 is to connect with the internal components of the hair straightener, so that the mounting portion 11 can be fixed and the overall structure can be more compact.

[0038] In this embodiment, the cross section of the air outlet portion 12 is elliptical, and there is an arc transition between the inner cavity of the mounting portion 11 and the inner wall of the air passage, so that the airflow flows more smoothly.

[0039] The utility model also discloses a hair straightener, comprising a main body 21 and a three-way pipe body 1, wherein the main body 21 is rotatably connected with a clamp arm 1 22 and a clamp arm 23, and a mounting portion 11 of the three-way pipe body 1 is fixedly arranged in the main body 21, and two air outlet portions 12 are respectively connected with the clamp arm 1 22 and the clamp arm 23, and an inner cavity airway is respectively connected with the clamp arm 1 22 and the clamp arm 23.

[0040] In this embodiment, a first filter element 24 is provided at the air inlet end of the main body 21, and a second filter element 25 is installed inside the main body 21. The second filter element 25 is connected to the air inlet end of the fan 3. The use of a two-level filtration method can avoid dust accumulation inside the fan 3 and increase the service life of the fan 3. In addition, the second filter element 25 is cylindrical, and its air inlet end is designed with a honeycomb hole 251 to reduce noise. In addition, a number of reinforcing ribs 252 are provided on the outer periphery of the second filter element 25 to improve the overall strength.

[0041] In this embodiment, the second filter element 25 is fixed inside the main body 21, and a portion of the second filter element 25 is sleeved on the outer periphery of the mounting portion 11 and fixedly connected to the mounting frame 142. During assembly, the mounting portion 11 and the second filter element 25 can be pre-fixed first, and then the air outlet portion 12 can be connected to the clamping arm to improve installation efficiency.

[0042] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0043] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementations that can be understood by those skilled in the art.

Claims

1. A three-chamber flexible tube fixing structure, which is used in a hair straightener, characterized in that: It comprises a three-way pipe body (1) integrally formed of a soft material, wherein one end of the three-way pipe body (1) forms a mounting portion (11) for mounting a fan (3), and the other two ends form air outlet portions (12) with air ducts, which are symmetrically arranged at intervals and extend in the opposite direction to the mounting portion (11); A positioning piece (13) is provided on the outside of the two air outlet portions (12), and at least one positioning hole (134) is provided in the positioning piece (13). The positioning hole (134) is used in conjunction with a positioning pin (26), and the positioning pin (26) is fixedly arranged on the outside of the air cavity of the hair straightener.

2. A three-lumen flexible tube fixing structure according to claim 1, characterized in that: The air outlet portion (12) is detachably connected to the positioning member (13); the positioning member (13) comprises a fixing ring (131); a buckle (132) is provided on the fixing ring (131); positioning portions (133) are provided on both sides; a positioning hole (134) is provided on the positioning portion (133); a clamping groove (121) and a clamping hole (122) communicating with the clamping groove (121) are provided on the outer side of the air outlet portion (12).

3. The three-lumen flexible tube fixing structure according to claim 1, characterized in that: The inner cavity side wall of the mounting portion (11) is in close contact with the outer periphery of the fan (3), and the air outlet end of the fan (3) corresponds to the air outlet portions (12) at both ends.

4. The three-lumen flexible tube fixing structure according to claim 1, characterized in that: A limiting groove (141) is provided on the surface of the mounting portion (11), and a mounting frame (142) is clamped in the limiting groove (141) and is used for connecting internal components of the hair straightener.

5. The three-lumen flexible tube fixing structure according to claim 1, characterized in that: The cross section of the air outlet portion (12) is elliptical, and there is a cambered transition between the inner cavity of the mounting portion (11) and the inner wall of the air passage.

6. A three-lumen flexible tube fixing structure according to claim 2, characterized in that: The end of the air outlet portion (12) is provided with a U-shaped groove (123) which is in communication with the clamping groove (121); the end of the fixing ring (131) is provided with an inserting portion (135); the inserting portion (135) is disposed in the U-shaped groove (123) and is in close contact with the side wall of the U-shaped groove (123).

7. A hair straightener, characterized in that: The invention comprises a main body (21) and a three-way pipe body (1) as described in any one of claims 1 to 6, wherein the main body (21) is rotatably connected with a clamp arm 1 (22) and a clamp arm 2 (23), and a mounting portion (11) of the three-way pipe body (1) is fixed in the main body (21), and two air outlet portions (12) are respectively connected with the clamp arm 1 (22) and the clamp arm 2 (23), and an inner cavity air passage is respectively connected with the clamp arm 1 (22) and the clamp arm 2 (23).

8. A hair straightener according to claim 7, characterized in that: The air inlet end of the main body (21) is provided with a first filter element (24), and a second filter element (25) is installed inside the main body (21), and the second filter element (25) is connected to the air inlet end of the fan (3).

9. A hair straightener according to claim 8, characterized in that: The second filter element (25) is cylindrical in shape, and its air inlet end is designed with honeycomb holes (251), and its outer periphery is provided with a plurality of reinforcing ribs (252).

10. A hair straightener according to claim 7, characterized in that: It also includes a bolt fixing piece, which passes through the positioning hole (134) and is connected to the positioning pin (26), and the bolt fixing piece abuts against the positioning portion (133).

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