A hair curler nozzle internal air duct switching structure

Abstract

This utility model discloses an internal air duct switching structure for a curling iron nozzle. It includes a nozzle body with several air outlets, each pair of adjacent outlets having opposite airflow directions; a separator connected internally to the nozzle body, which, together with the nozzle body, forms several air ducts, each connected to one of the air outlets; a switching rotor with several air inlets, each pair of adjacent air inlets having a baffle that completely blocks airflow into one of the air ducts; the air inlets and the baffles between adjacent air inlets corresponding to the air ducts; a nozzle connector connected to one end of the nozzle body and having several air inlets communicating with the air inlets; a switching button connected to the other end of the nozzle body; and a drive assembly installed inside the separator, which drives the switching rotor to rotate and connect with the separator when triggered by the switching button. The advantage of this utility model is that it reduces the number of accessories required.

Description

Technical Field

[0001] This utility model relates to the technical field of hair curler nozzles, and in particular to an internal air duct switching structure for hair curler nozzles. Background Technology

[0002] The curling nozzle is an accessory for high-speed hair dryers, primarily used for curling hair and helping beauty enthusiasts create different curly hairstyles.

[0003] In existing technologies, most curling iron nozzles use unidirectional airflow to achieve curling styles. To achieve curling styles in two directions, two different curling iron nozzles need to be designed as accessories for high-speed hair dryers, which is cumbersome and costly. Utility Model Content

[0004] The present invention aims to overcome the shortcomings of existing hair curler nozzles, which mostly use unidirectional airflow and require a variety of accessories, and provides an internal airflow switching structure for hair curler nozzles that reduces the number of accessories required.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A hair curler nozzle internal airflow switching structure, comprising:

[0007] The nozzle body is cylindrical in shape, and its outer side wall is provided with several air outlets that are evenly distributed around the circumference of the nozzle body and discharge air along the tangential direction of the nozzle body. The air discharge directions of each pair of adjacent air outlets are opposite, and the length direction of the air outlets is parallel to the axis of the nozzle body.

[0008] A separator is matched with the interior of the nozzle body and is detachably connected to the nozzle body. The outer side of the separator divides the interior of the nozzle body into several circumferentially evenly distributed air ducts, and the several air ducts are connected to several air outlets one by one.

[0009] The switching rotor is detachably connected to the end of the separator. Several air inlets are fixed on the switching rotor and evenly distributed around its circumference. A baffle block that can completely block the air inlet of any one of the air ducts is fixed between each two adjacent air inlets. The several air inlets and the baffle block between each two adjacent air inlets correspond to several air ducts one by one.

[0010] The nozzle connector is detachably connected to one end of the nozzle body and has several air inlets that are connected to the air inlets.

[0011] A switching button is detachably connected to the other end of the nozzle body;

[0012] A drive assembly is detachably installed inside the separator. The switching button is detachably connected to the switching rotor via the drive assembly. The switching rotor, triggered by the switching button, is driven by the drive assembly to rotate and connect with the separator. After the nozzle body is installed on the high-speed blower body via the nozzle connector, high-speed airflow is blown out from the high-speed blower body, passing sequentially through the air inlet on the nozzle connector and the air inlet on the switching rotor before entering the corresponding air duct, and finally exiting from the corresponding air outlet. Several air ducts and several air outlets are connected one-to-one, so that the air outlets in every two adjacent air ducts have opposite airflow directions. Assuming the initial state, the air inlet on the switching rotor is connected to the left-side air outlet via the corresponding air duct. At this time, the baffle completely blocks the air inlet of the adjacent air duct to prevent the right-side air outlet from entering. When the airflow is directed, it exits from the left side. To change the direction, the user triggers the switching button, which in turn drives the switching rotor to rotate at a certain angle. This causes the air inlet to rotate to the adjacent air duct that was previously blocked by the baffle. Simultaneously, the baffle rotates to the adjacent air duct that was previously connected to the air inlet and completely blocks it, preventing air from exiting from the left side. This ensures that the airflow exits from the right side, allowing for bidirectional airflow from the curling iron nozzle via the switching button. The operation is simple, reducing the number of accessories required and saving costs.

[0013] Preferably, the drive assembly includes a drive rod, a spring, and a guide seat with a circular cross-section. The drive rod is radially confined within the separator. The end of the switching button has a groove that matches one end of the drive rod. The spring is sleeved on the other end of the drive rod. When triggered by the switching button, the drive rod is elastically slidably connected to the separator along its length via the spring. The other end of the drive rod is detachably connected to the center of one side of the guide seat. A number of guide pins are detachably connected to the corresponding edge of the other side of the guide seat. The guide pins are evenly distributed circumferentially along the guide seat. One end of each guide pin is embedded in the side wall of the guide seat and elastically connected to the guide seat radially. The other end of each guide pin is located outside the guide seat. The guide seat is located inside one end of the switching rotor. The interior of the switching rotor has a number of oblique grooves that match the ends of the guide pins located outside the guide seat. When the switching button drives the drive rod to slide, the switching rotor is rotatably connected to the end of the separator via the guide pins matching the corresponding oblique grooves. The air inlet and the baffle are both located outside the other end of the switching rotor. The user presses the switching button against the force of the spring, and the drive rod drives several guide pins on the guide seat to move along the corresponding inclined grooves, forcing the switching rotor to rotate through a certain angle, thereby changing the air duct to change the air direction. The structure is simple and easy to operate. The guide pins are elastically connected to the guide seat, so that the guide pins are always in contact with the surface of the inclined grooves in the switching rotor. The solution uses 5 pairs of guide pins, but they can also be matched according to the degree of rotation. The number is not limited. The more pairs of guide pins there are, the smaller the force on each one. The smaller the space, the fewer guide pins are needed.

[0014] Preferably, the switching rotor includes a rotating cylinder and an annular body coaxial with the rotating cylinder. The rotating cylinder is located inside the annular body. One outer wall of the rotating cylinder is fixedly connected to the annular body by several blocks and forms an integral part. The air inlet is located between the outer wall of the rotating cylinder and the annular body. The guide seat is located inside the other end of the rotating cylinder. The inclined groove is located on the inner wall of the rotating cylinder. Several straight grooves are formed on the inner wall of the rotating cylinder, which are connected to the inclined groove one by one. The straight grooves are parallel to the axial direction of the rotating cylinder and their two ends are located at the two ends of the rotating cylinder. One end of the inclined groove is close to the guide seat and is connected to one side of the adjacent straight groove. The other end of the inclined groove... The end of the inclined groove is far from the guide seat and connected to a V-shaped groove. The bottom of the V-shaped groove is a turning point and close to the guide seat. The opening end of the V-shaped groove is far from the guide seat. One side of the V-shaped groove is parallel to the straight groove. The end of the inclined groove away from the guide seat is connected to the side of the V-shaped groove that is parallel to the straight groove. The other side of the V-shaped groove is parallel to the inclined groove. The side of the V-shaped groove that is parallel to the inclined groove extends to the other side of another adjacent straight groove and is connected to it. The straight groove and the V-shaped groove are matched with the corresponding guide pins. Several air ducts correspond one-to-one with several straight grooves and several sides of V-shaped grooves that are parallel to the straight grooves. The user controls the reciprocating motion of the drive rod via a switching button. This reciprocating motion of the drive rod drives the guide pin. When the user presses the switching button, the guide pin first passes through the straight groove and enters the inclined groove, causing the switching rotor to rotate at a certain angle. At this point, the guide pin enters the end of the V-shaped groove parallel to the straight groove. Releasing the switching button causes the guide pin to retract under the action of the spring to the bottom of the V-shaped groove, completing one rotation. This rotation angle can be set according to the actual design and is not limited. Pressing the switching button again causes the guide pin to enter the side of the V-shaped groove parallel to the inclined groove, causing the switching rotor to rotate at a certain angle. Repeating this action allows the switching rotor to rotate unidirectionally at a fixed angle, completing the switching of the air duct. Several air ducts are divided into... The guide pins correspond one-to-one with one side of several straight grooves and several V-shaped grooves parallel to the straight grooves, so that when the guide pins slide along one end of the inclined groove to the other end or along one end of the V-shaped groove parallel to the straight groove to the other end, the rotation angle of the switching rotor is the same. This allows the air inlet and the baffle to rotate from one air duct to another adjacent air duct, thereby facilitating the switching of air ducts and changing the air direction. The switching rotor is made of plastic parts, but can also be made of other materials. Considering the manufacturability of the track formed by the inclined grooves, straight grooves and V-shaped grooves, two parts of the switching rotor made of the same material are fixed together by glue, ultrasonic waves, screws, etc., to form a complete sliding track. The fixing methods include, but are not limited to, the above-mentioned fixing methods.

[0015] Preferably, each end of the inclined groove that connects to the straight groove and the V-shaped groove is provided with a step block. One side of the inclined groove is close to the guide seat, and the corresponding other side of the inclined groove is away from the guide seat. The step block at the end of the inclined groove close to the guide seat is located inside the straight groove, and one side of the step block is located at the extension of the side of the inclined groove away from the guide seat. The corresponding other side of the step block is an inclined surface that smoothly transitions to the bottom surface of the straight groove. The side of the step block at the end of the inclined groove away from the guide seat is on the same plane as the sidewall of the V-shaped groove that is parallel to the straight groove, and the corresponding other side of the step block is a sloped surface that smoothly transitions to the bottom surface of the straight groove. The inclined surface of the bottom of the inclined groove includes two stepped blocks (II) within the V-shaped groove. One stepped block (II) is located at the connection point between the two sides of the V-shaped groove. One side of this stepped block (II) extends from the sidewall of the V-shaped groove and the inclined groove, which are parallel to each other. The opposite side of this stepped block (II) is an inclined surface that smoothly transitions to the bottom surface of the V-shaped groove and the straight groove, which are parallel to each other. The other stepped block (II) is located at the connection point between the V-shaped groove and another adjacent straight groove. One side of this stepped block (II) is on the same plane as the sidewall of the straight groove. The opposite side of this stepped block (II) is an inclined surface that smoothly transitions to the bottom surface of the V-shaped groove and the inclined groove, which are parallel to each other. The guide pin is elastically connected to the guide seat, ensuring that the guide pin always moves in contact with the bottom surfaces of the inclined groove, the straight groove, and the V-shaped groove within the switching rotor. Stepped blocks one and two create a gradient design at the turning points of the inclined groove, the straight groove, and the V-shaped groove, preventing the guide pin from moving in the opposite direction while facilitating its smooth turning.

[0016] Preferably, one end of the rotating drum is provided with a positioning step surface, and a positioning shaft is fixed at the center of one side of the nozzle connector. After the nozzle connector is inserted into the rotating drum through the positioning shaft, it corresponds to the positioning step surface. Several air inlets are evenly distributed circumferentially around the positioning shaft. The nozzle connector is located at one end of the nozzle body, and a limiting tube is fixed at the center of the other end of the nozzle body. The interior of the nozzle body is connected to the outside through the limiting tube. One end of the limiting tube is fixedly connected to the end of the nozzle body. One end of the switching button is located inside one end of the limiting tube and is slidably connected to the limiting tube. The other end of the switching button is suspended outside the limiting tube and outside the nozzle body. The other end of the limiting tube is suspended inside the nozzle body. One end of the drive rod penetrates the interior of the limiting tube. The part of the drive rod penetrating the interior of the limiting tube is slidably connected to the limiting tube. The switching button is detachably connected to one end of the drive rod through a slot. The switching rotor is detachably connected to one end of the separator. The other end of the separator is sleeved on the outer wall of the limiting tube. When installing the switching rotor, first assemble the switching rotor to the end of the separator, and then connect and fix the edge of the nozzle connector to the edge of the nozzle body by snapping or other means (the connection method is not limited), so that the two form a space for the switching rotor to move. At the same time, the nozzle connector is inserted into the rotating drum through the positioning shaft. The positioning shaft corresponds to the positioning step surface inside the rotating drum, so that the switching rotor is positioned in the axial direction. The installation method is simple. The limit tubes are positioned radially for the drive rod and the separator respectively.

[0017] Preferably, a protrusion is fixed on the outer wall of the switching button, the protrusion is located on the outer wall of the slot, and a rectangular opening matching the protrusion is provided on the side wall of the limiting tube. The switching button is slidably connected to one end of the limiting tube through the matching of the protrusion and the rectangular opening. The end of the nozzle body is provided with a top cover, and the top cover is detachably connected to one end of the limiting tube fixed to the nozzle body. One end of the rectangular opening is close to the top cover and is open outward, while the other end of the rectangular opening is away from the top cover. The center of the top cover is provided with a mounting hole matching the switching button, and the edge of the mounting hole extends towards the limiting tube with a limiting ring that contacts the protrusion. When installing the switch button, the switch button is fitted onto the end of the drive rod through a slot, and the end of the protrusion that is open outward through the rectangular opening is inserted into the rectangular opening. Finally, the top cover and the nozzle body are connected and fixed by means of snap-fit ​​or other methods (the connection method is not limited). The limiting ring contacts the protrusion, so that the protrusion is limited within the rectangular opening. Thus, when the user presses the switch button, the switch button slides along the length of the rectangular opening within the limiting tube through the protrusion. The installation method is simple. The number of protrusions and matching rectangular openings is not limited, but to ensure smooth pressing and simple manufacturing, it is preferred to have two of each.

[0018] Preferably, the outer wall of the drive rod is provided with a limiting step surface that corresponds to the suspended end of the limiting tube. A guide bar, parallel to the drive rod, protrudes and is fixed to the inner wall of the limiting tube. A guide groove, matching the guide bar, is provided on the inner wall of the limiting tube. The guide groove is located on the suspended end of the limiting tube. The drive rod is slidably connected to the limiting tube via the matching guide bar and guide groove. Initially, the drive rod, under the action of the spring, contacts the suspended end of the limiting tube via the limiting step surface. When the user presses the switch button, the drive rod slides. During this process, because the drive rod matches the guide bar and guide groove, the drive rod is radially limited during its extension and retraction, preventing rotation and allowing only reciprocating motion. The spring force pushes the drive rod to the start position after the switch button is released.

[0019] Preferably, one end of the separator is provided with a mounting groove that matches the rotating cylinder. The rotating cylinder is rotatably connected to the mounting groove. The stop block and the ring are both located outside the opening end of the mounting groove. A through hole is provided at the bottom center of the mounting groove. An annular support plate is fixed in the through hole. The guide seat is located at one end of the through hole and on one side of the support plate. The spring is located on the opposite side of the support plate. The drive rod is located in the through hole and passes through the support plate. The drive rod is elastically connected to the support plate through the spring.

[0020] The beneficial effects of this utility model are:

[0021] 1. The curling iron nozzle can be switched to produce air in both directions by using a toggle button. This simple operation helps reduce the number of accessories required and saves costs.

[0022] 2. The inclined groove, straight groove and V-shaped groove are connected by a gradient design to prevent the guide pin from moving in the opposite direction and to facilitate the guide pin to complete the turning smoothly. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of this utility model;

[0024] Figure 2 This is an exploded view of this utility model;

[0025] Figure 3 This is the front view of this utility model;

[0026] Figure 4 yes Figure 3 Sectional view of line A-A;

[0027] Figure 5 yes Figure 3 Sectional view of CC;

[0028] Figure 6This is a schematic diagram of the rotor switching structure;

[0029] Figure 7 yes Figure 6 Longitudinal section view;

[0030] Figure 8 This is a structural diagram of the nozzle connector;

[0031] Figure 9 This is a schematic diagram of the driving component.

[0032] In the diagram: 1. Nozzle body, 2. Mounting slot, 3. Air outlet, 4. Divider, 5. Air duct, 6. Switching rotor, 7. Air inlet, 8. Baffle, 9. Nozzle connector, 10. Air inlet, 11. Switching button, 12. Drive assembly, 13. Drive rod, 14. Spring, 15. Guide seat, 16. Slot, 17. Guide pin, 18. Angled groove, 19. Rotary drum, 20. Ring body, 21. Straight groove, 22. V-groove, 23. Step block one, 24. Step block two, 25. Positioning step surface, 26. Positioning shaft, 27. Limiting tube, 28. Protrusion, 29. Rectangular opening, 30. Top cover, 31. Limiting ring, 32. Limiting step surface, 33. Guide bar, 34. Guide groove, 35. Through hole, 36. Support plate. Detailed Implementation

[0033] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this application or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0034] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0035] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of components illustrated in these embodiments do not limit the scope of this application. For ease of illustration, spatial relative terms such as “upper,” “lower,” “left,” and “right” are used in the embodiments to describe the relationship of one element or feature shown in the figures relative to another element or feature. It should be understood that, in addition to the orientations shown in the figures, spatial terms are intended to include different orientations of the device in use or operation. For example, if the device in the figures is inverted, an element described as being “below” other elements or features would be fixed “upper” to other elements or features. Thus, the exemplary term “lower” can include both upper and lower orientations. The device may be fixed in other ways (rotated 90 degrees or located in other orientations), and the spatial relative descriptions used herein can be interpreted accordingly. It should also be understood that, for ease of description, the dimensions of the various parts shown in the figures are not drawn to actual scale. Techniques, processes, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, processes, and equipment should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limiting. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be discussed further in subsequent figures.

[0036] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

[0037] like Figure 1 , Figure 2 and Figure 3 As shown, a hair curler nozzle internal air duct switching structure includes a nozzle body 1, which is cylindrical in shape, and has several air outlets 3 evenly distributed along the circumference of the nozzle body 1 and discharging air along the tangential direction of the nozzle body 1 on its outer wall. The air discharge directions of each pair of adjacent air outlets 3 are opposite, and the length direction of the air outlets 3 is parallel to the axial direction of the nozzle body 1. Figure 4 and Figure 5 As shown, the separator 4 matches the interior of the nozzle body 1 and is detachably connected to it. The outer side of the separator 4 divides the interior of the nozzle body 1 into several circumferentially evenly distributed air ducts 5. Each air duct 5 is connected to a corresponding air outlet 3, such that the air outlets 3 in each pair of adjacent air ducts 5 have opposite air outlet directions. Figure 2 , Figure 4 , Figure 5 and Figure 6 As shown, the switching rotor 6 is detachably connected to the end of the separator 4. Several air inlets 7 are fixed on the switching rotor 6, evenly distributed along its circumference. Between each pair of adjacent air inlets 7, a baffle 8 is fixed that can completely block the airflow into any one of the air ducts 5. The several air inlets 7 and the baffles 8 between each pair of adjacent air inlets 7 correspond one-to-one with several air ducts 5; for example... Figure 2 , Figure 3 , Figure 4 and Figure 8 As shown, the nozzle connector 9 is detachably connected to one end of the nozzle body 1 and has several air inlets 10 that are connected to the air inlets 7; the switch button 11 is detachably connected to the other end of the nozzle body 1; the drive assembly 12 is detachably installed inside the separator 4, and the switch button 11 is detachably connected to the switch rotor 6 through the drive assembly 12. The switch rotor 6 is rotated and connected to the separator 4 by the drive of the drive assembly 12 when the switch button 11 is triggered.

[0038] like Figure 2 , Figure 4 and Figure 9 As shown, the drive assembly 12 includes a drive rod 13, a spring 14, and a guide seat 15 with a circular cross-section. The drive rod 13 is radially confined within the separator 4. The end of the switching button 11 has a slot 16 that matches one end of the drive rod 13. The spring 14 is sleeved on the other end of the drive rod 13. When triggered by the switching button 11, the drive rod 13 is elastically slidably connected to the separator 4 along its length direction via the spring 14. The other end of the drive rod 13 is detachably connected to the center of one side of the guide seat 15. Several guide pins 17 are detachably connected to the corresponding edge of the other side of the guide seat 15. The guide pins 17 are evenly distributed along the circumference of the guide seat 15. One end of the guide pin 17 is embedded in the side wall of the guide seat 15 and is elastically connected to the guide seat 15 radially. The other end of the guide pin 17 is located outside the guide seat 15. The guide seat 15 is located inside one end of the switching rotor 6. The switching rotor 6 has several inclined grooves 18 that match the ends of the guide pins 17 located outside the guide seat 15. Under the elastic action, the guide pins 17 are always in contact with the surface of the inclined grooves 18 inside the switching rotor. Under the action of the switching button 11 driving the drive rod 13 to slide, the switching rotor 6 is rotatably connected to the end of the separator 4 through the matching of the guide pins 17 and the corresponding inclined grooves 18. The air inlet 7 and the baffle 8 are both located outside the other end of the switching rotor 6. In this scheme, 5 pairs of guide pins 17 are used. They can also be matched according to the rotation degree. The number is not limited. The more pairs of guide pins 17 there are, the smaller the force on each one. The smaller the space, the fewer guide pins 17 there are.

[0039] like Figure 4 , Figure 6 and Figure 7As shown, the switching rotor 6 includes a rotating cylinder 19 and an annular body 20 coaxial with the rotating cylinder 19. The rotating cylinder 19 is located inside the annular body 20. One end of the outer wall of the rotating cylinder 19 is fixedly connected to the annular body 20 by several blocks 8 and forms an integral part. The air inlet 7 is located between the outer side of the rotating cylinder 19 and the annular body 20. The guide seat 15 is located inside the other end of the rotating cylinder 19. The inclined groove 18 is located on the inner wall of the rotating cylinder 19. Several straight grooves 21 are opened on the inner wall of the rotating cylinder 19, which are connected and communicate with the inclined grooves 18 one by one. The straight grooves 21 are parallel to the axial direction of the rotating cylinder 19. The inclined groove 18 is located at both ends of the rotating drum 19. One end of the inclined groove 18 is close to the guide seat 15 and is connected to one side of the adjacent straight groove 21. The other end of the inclined groove 18 is away from the guide seat 15 and is connected to a V-shaped groove 22. The bottom of the V-shaped groove 22 is a bend and close to the guide seat 15. The opening end of the V-shaped groove 22 is away from the guide seat 15. One side of the V-shaped groove 22 is parallel to the straight groove 21. The end of the inclined groove 18 away from the guide seat 15 is connected to one side of the V-shaped groove 22 parallel to the straight groove 21. The other side of the V-shaped groove 22 is connected to... The inclined slots 18 are parallel to each other. One side of the V-shaped slot 22, parallel to the inclined slot 18, extends to the opposite side of the adjacent straight slot 21 and connects with it. Both the straight slot 21 and the V-shaped slot 22 are matched with corresponding guide pins 17. Several air ducts 5 correspond one-to-one with one side of several straight slots 21 and one-to-one with one side of several V-shaped slots 22 parallel to the straight slots 21. This ensures that when the guide pin 17 slides along one end of the inclined slot 18 to the other or along one end of the side of the V-shaped slot 22 parallel to the straight slot 21 to the other, the rotor 6 switches each time. The rotation angles are the same, which allows the air inlet 7 and the baffle 8 to rotate from one air duct 5 to another adjacent air duct 5, thereby facilitating the switching of air duct 5 and changing the air direction. The switching rotor 6 is made of plastic or other materials. Considering the manufacturability of the track formed by the inclined groove 18, the straight groove 21 and the V-shaped groove 22, the switching rotor 6 has two parts of the same material that are fixed together by glue, ultrasonic waves, screws or other means to form a complete sliding track. The fixing methods include but are not limited to the above-mentioned fixing methods.

[0040] like Figure 7As shown, both ends of the inclined groove 18 that connect with the straight groove 21 and the V-shaped groove are provided with step blocks 23. One side of the inclined groove 18 is close to the guide seat 15, and the corresponding other side of the inclined groove 18 is away from the guide seat 15. The step block 23 at the end of the inclined groove 18 close to the guide seat 15 is located in the straight groove 21, and one side of the step block 23 is located at the extension of the side of the inclined groove 18 away from the guide seat 15. The corresponding other side of the step block 23 is an inclined surface that smoothly transitions to the bottom surface of the straight groove 21. The side of the step block 23 at the end of the inclined groove 18 away from the guide seat 15 is on the same plane as the side wall of the V-shaped groove that is parallel to the straight groove 21, and the corresponding other side of the step block 23 smoothly transitions to the inclined groove. The inclined surface of the bottom of 18 has two stepped blocks 24 in the V-shaped groove 22. One stepped block 24 is located at the connection between the two sides of the V-shaped groove 22. One side of the stepped block 24 is located at the extension of the side wall of the V-shaped groove 22 and the inclined groove 18 that are parallel to each other. The other side of the stepped block 24 is an inclined surface that smoothly transitions to the bottom surface of the V-shaped groove 22 and the straight groove 21 that are parallel to each other. The other stepped block 24 is located at the connection between the V-shaped groove 22 and another adjacent straight groove 21. One side of the stepped block 24 is on the same plane as the side wall of the straight groove 21. The other side of the stepped block 24 is an inclined surface that smoothly transitions to the bottom surface of the V-shaped groove 22 and the inclined groove 18 that are parallel to each other. Because the guide pin 17 is elastically connected to the guide seat 15, the guide pin 17 always moves in contact with the bottom surface of the inclined groove 18, the bottom surface of the straight groove 21 and the bottom surface of the V-shaped groove 22 in the switching rotor 6; the step block 1 23 and the step block 24 form a gradient design at the turning junction of the inclined groove 18, the straight groove 21 and the V-shaped groove 22, which prevents the guide pin 17 from moving in the opposite direction and facilitates the guide pin 17 to smoothly complete the turning.

[0041] like Figure 4 , Figure 6 and Figure 8As shown, a positioning step surface 25 is provided inside one end of the rotating drum 19. A positioning shaft 26 is fixed at the center of one side of the nozzle connector 9. After the nozzle connector 9 is inserted into the rotating drum 19 through the positioning shaft 26, it corresponds to the positioning step surface 25. Several air inlets 10 are evenly distributed circumferentially around the positioning shaft 26. The nozzle connector 9 is located at one end of the nozzle body 1. A limit tube 27 is fixed at the center of the other end of the nozzle body 1. The interior of the nozzle body 1 is connected to the outside through the limit tube 27. One end of the limit tube 27 is fixedly connected to the end of the nozzle body 1. One end of the switch button 11 is located at the limit tube 27. One end of the positioning tube 27 is inside and slidably connected to the limiting tube 27. The other end of the switching button 11 is suspended outside the limiting tube 27 and outside the nozzle body 1. The other end of the limiting tube 27 is suspended inside the nozzle body 1. One end of the drive rod 13 passes through the interior of the limiting tube 27. The part of the drive rod 13 that passes through the interior of the limiting tube 27 is slidably connected to the limiting tube 27. The switching button 11 is detachably connected to one end of the drive rod 13 through the slot 16. The switching rotor 6 is detachably connected to one end of the separator 4. The other end of the separator 4 is sleeved on the outer wall of the limiting tube 27.

[0042] like Figure 4 As shown, a protrusion 28 is fixed on the outer wall of the switch button 11. The protrusion 28 is located on the outer wall of the slot 16. A rectangular opening 29 matching the protrusion 28 is provided on the side wall of the limiting tube 27. The switch button 11 is slidably connected to one end of the limiting tube 27 through the matching of the protrusion 28 and the rectangular opening 29. The end of the nozzle body 1 is provided with a top cover 30. The top cover 30 is fixed to the nozzle body 1 and is detachably connected to one end of the limiting tube 27. One end of the rectangular opening 29 is close to the top cover 30 and is open outward. The other end of the rectangular opening 29 is away from the top cover 30. The center of the top cover 30 is provided with a mounting hole matching the switch button 11. The edge of the mounting hole extends towards the limiting tube 27 and a limiting ring 31 corresponding to and in contact with the protrusion 28.

[0043] like Figure 4 and Figure 5 As shown, the outer side wall of the drive rod 13 is provided with a limiting step surface 32 that corresponds to the end of the limiting tube 27 that is suspended. The drive rod 13 is provided with a guide bar 33 that is parallel to it on the side wall of the end inside the limiting tube 27. The inner side wall of the limiting tube 27 is provided with a guide groove 34 that matches the guide bar 33. The guide groove 34 is located on the side wall of the end of the limiting tube 27 that is suspended. The drive rod 13 is slidably connected to the limiting tube 27 through the matching of the guide bar 33 and the guide groove 34.

[0044] like Figure 4 and Figure 5As shown, one end of the separator 4 is provided with a mounting groove 2 that matches the rotating drum 19. The rotating drum 19 is rotatably connected to the mounting groove 2. The stop block 8 and the ring body 20 are both located outside the opening end of the mounting groove 2. The bottom center of the mounting groove 2 is provided with a through hole 35. An annular support plate 36 is fixed in the through hole 35. The guide seat 15 is located at one end of the through hole 35 and on one side of the support plate 36. The spring 14 is located on the other side of the support plate 36. The drive rod 13 is located in the through hole 35 and passes through the support plate 36. The drive rod 13 is elastically connected to the support plate 36 through the spring 14.

[0045] After the nozzle body 1 is installed on the high-speed blower body via the nozzle connector 9, the high-speed airflow is blown out from the high-speed blower body, passes through the air inlet 10 on the nozzle connector 9 and the air inlet 7 on the switching rotor 6 in sequence, and then enters the corresponding air duct 5, and finally blows out from the corresponding air outlet 3. Assuming that in the initial state, the air inlet 7 on the switching rotor 6 is connected to the air outlet 3 on the left side through the corresponding air duct 5, at this time the baffle 8 completely blocks the air inlet of the adjacent air duct 5 to prevent the air outlet 3 on the right side from escaping, so that the airflow is all from the left side. When it is necessary to change the airflow direction, the user controls the reciprocating motion of the drive rod 13 through the switching button 11. The reciprocating motion of the drive rod 13 drives the guide pin 17 to move. When the user presses the switching button 11, the guide pin 17 first enters the inclined groove 18 through the straight groove 21, so that the switching rotor 6 generates a certain angle. The guide pin 17 rotates to the end of the V-groove 22 parallel to the straight groove 21. Releasing the switching button 11 causes the guide pin 17 to retract to the bottom bend of the V-groove 22 under the influence of the spring 14, completing one rotation. This rotation angle can be set according to the actual design and is not limited. At this time, the air inlet 7 rotates to the adjacent air duct 5 that was originally blocked by the baffle 8. Simultaneously, the baffle 8 rotates to the adjacent air duct 5 that was originally connected to the air inlet 7 and completely blocks it, preventing air from exiting from the left-side air outlet 3, ensuring that all air exits from the right side. When the air direction needs to be switched again, simply press the switching button 11 again. The guide pin 17 enters the side of the V-groove 22 parallel to the inclined groove 18, causing the switching rotor 6 to rotate at a certain angle. Repeating the above actions causes the switching rotor 6 to rotate unidirectionally at a fixed angle, completing the switching of the air duct 5.

[0046] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A curling iron nozzle inner air passage switching structure, characterized by, include: The nozzle body (1) is cylindrical in shape, and its outer side wall is provided with several air outlets (3) that are evenly distributed along the circumference of the nozzle body (1) and that air is discharged along the tangential direction of the nozzle body (1). The air discharge directions of each two adjacent air outlets (3) are opposite, and the length direction of the air outlets (3) is parallel to the axial direction of the nozzle body (1). The separator (4) matches the interior of the nozzle body (1) and is detachably connected to the nozzle body (1). The outer side of the separator (4) divides the interior of the nozzle body (1) into several circumferentially distributed air ducts (5). The several air ducts (5) are connected to several air outlets (3) one by one. The switching rotor (6) is detachably connected to the end of the separator (4). The switching rotor (6) has several air inlets (7) evenly distributed along its circumference. Between each pair of adjacent air inlets (7) is a baffle (8) that can completely block the air inlet of any one of the air ducts (5). The several air inlets (7) and the baffle (8) between each pair of adjacent air inlets (7) correspond one-to-one with the several air ducts (5). The nozzle connector (9) is detachably connected to one end of the nozzle body (1) and has several air inlet nozzles (10) that are connected to the air inlet (7). A switching button (11) is detachably connected to the other end of the nozzle body (1); The drive assembly (12) is detachably installed inside the separator (4). The switching button (11) is detachably connected to the switching rotor (6) through the drive assembly (12). The switching rotor (6) is rotated and connected to the separator (4) by the drive of the drive assembly (12) when triggered by the switching button (11).

2. The inside air channel switching structure of a curling iron spout according to claim 1, characterized in that, The drive assembly (12) includes a drive rod (13), a spring (14), and a guide seat (15) with a circular cross-section. The drive rod (13) is radially confined within the separator (4). The end of the switching button (11) is provided with a slot (16) that matches one end of the drive rod (13). The spring (14) is sleeved on the other end of the drive rod (13). When triggered by the switching button (11), the drive rod (13) is elastically slidably connected to the separator (4) along the length direction of the separator (4) via the spring (14). The other end of the drive rod (13) is detachably connected to the center of one side of the guide seat (15). Several guide pins (17) are detachably connected to the corresponding edge of the other side of the guide seat (15). The several guide pins (17) are slid along the guide seat (15) ... The guide pins (17) are evenly distributed around the circumference of the guide seat (15). One end of the guide pin (17) is embedded in the side wall of the guide seat (15) and is elastically connected to the guide seat (15) in the radial direction. The other end of the guide pin (17) is located outside the guide seat (15). The guide seat (15) is located inside one end of the switching rotor (6). The interior of the switching rotor (6) is provided with several oblique grooves (18) that match the ends of the guide pins (17) located outside the guide seat (15). Under the action of the switching button (11) driving the drive rod (13) to slide, the switching rotor (6) is rotatably connected to the end of the separator (4) through the guide pins (17) and the corresponding oblique grooves (18). The air inlet (7) and the baffle (8) are both located outside the other end of the switching rotor (6).

3. The inside air channel switching structure of a curling iron spout according to claim 2, characterized in that, The switching rotor (6) includes a rotating cylinder (19) and an annular body (20) coaxial with the rotating cylinder (19). The rotating cylinder (19) is located inside the annular body (20). One end of the outer wall of the rotating cylinder (19) is fixedly connected to the annular body (20) by several blocks (8) and forms an integral part. The air inlet (7) is located between the outer side of the rotating cylinder (19) and the annular body (20). The guide seat (15) is located inside the other end of the rotating cylinder (19). The inclined groove (18) Located on the inner wall of the rotating cylinder (19), the inner wall of the rotating cylinder (19) is provided with a number of straight grooves (21) that are connected to the inclined grooves (18) one by one. The straight grooves (21) are parallel to the axis of the rotating cylinder (19) and their two ends are respectively located at the two ends of the rotating cylinder (19). One end of the inclined groove (18) is close to the guide seat (15) and is connected to one side of the adjacent straight groove (21). The other end of the inclined groove (18) The end is far from the guide seat (15) and connected to a V-shaped groove (22). The bottom of the V-shaped groove (22) is a turning point and close to the guide seat (15). The opening end of the V-shaped groove (22) is far from the guide seat (15). One side of the V-shaped groove (22) is parallel to the straight groove (21). The end of the inclined groove (18) far from the guide seat (15) is connected to the side of the V-shaped groove (22) parallel to the straight groove (21). The other side of the V-shaped groove (22) is parallel to the inclined groove (18). The side of the V-shaped groove (22) parallel to the inclined groove (18) extends to the other side of another adjacent straight groove (21) and is connected to it. The straight groove (21) and the V-shaped groove (22) are matched with the corresponding guide pins (17). Several air ducts (5) correspond one-to-one with several straight grooves (21) and several V-shaped grooves (22) parallel to the straight grooves (21).

4. The inside air channel switching structure of a curling iron spout according to claim 3, characterized in that, The inclined groove (18) is provided with step blocks (23) at both ends where it connects with the straight groove (21) and the V-shaped groove (22). One side of the inclined groove (18) is close to the guide seat (15), and the other side of the inclined groove (18) is away from the guide seat (15). The step block (23) at the end of the inclined groove (18) close to the guide seat (15) is located in the straight groove (21), and one side of the step block (23) is located at the extension of the side of the inclined groove (18) away from the guide seat (15). The other side of the step block (23) is an inclined surface that gently transitions to the bottom surface of the straight groove (21). The side of the step block (23) at the end of the inclined groove (18) away from the guide seat (15) is on the same plane as the side wall of the V-shaped groove (22) parallel to the straight groove (21), and the other side of the step block (23) is on the same plane. To smoothly transition to the inclined surface of the bottom of the inclined groove (18), two step blocks (24) are provided in the V-shaped groove (22). One step block (24) is located at the connection between the two sides of the V-shaped groove (22). One side of the step block (24) is located at the extension of the side wall of the V-shaped groove (22) and the inclined groove (18) that are parallel to each other. The other side of the step block (24) is an inclined surface that smoothly transitions to the bottom surface of the V-shaped groove (22) and the straight groove (21) that are parallel to each other. The other step block (24) is located at the connection between the V-shaped groove (22) and another adjacent straight groove (21). One side of the step block (24) is on the same plane as the side wall of the straight groove (21). The other side of the step block (24) is an inclined surface that smoothly transitions to the bottom surface of the V-shaped groove (22) and the inclined groove (18) that are parallel to each other.

5. The internal air duct switching structure of a curling iron nozzle according to claim 3, characterized in that, One end of the rotating drum (19) is provided with a positioning step surface (25). A positioning shaft (26) is fixed at the center of one side of the nozzle connector (9). After the nozzle connector (9) is inserted into the rotating drum (19) through the positioning shaft (26), it corresponds to the positioning step surface (25). Several air inlets (10) are evenly distributed around the positioning shaft (26) in the circumferential direction. The nozzle connector (9) is located at one end of the nozzle body (1). A limit tube (27) is fixed at the center of the other end of the nozzle body (1). The interior of the nozzle body (1) is connected to the outside through the limit tube (27). One end of the limit tube (27) is fixedly connected to the end of the nozzle body (1). One end of the switch button (11) is located at the limit tube. One end of the tube (27) is inside and slides vertically with the limiting tube (27). The other end of the switching button (11) is suspended outside the limiting tube (27) and outside the nozzle body (1). The other end of the limiting tube (27) is suspended inside the nozzle body (1). One end of the drive rod (13) penetrates the interior of the limiting tube (27). The part of the drive rod (13) that penetrates the interior of the limiting tube (27) slides vertically with the limiting tube (27). The switching button (11) is detachably connected to one end of the drive rod (13) through the slot (16). The switching rotor (6) is detachably connected to one end of the separator (4). The other end of the separator (4) is sleeved on the outer wall of the limiting tube (27).

6. The internal air duct switching structure of a curling iron nozzle according to claim 5, characterized in that, A protrusion (28) is fixed on the outer wall of the switching button (11). The protrusion (28) is located on the outer wall of the slot (16). A rectangular opening (29) matching the protrusion (28) is provided on the side wall of the limiting tube (27). The switching button (11) is slidably connected to one end of the limiting tube (27) through the matching of the protrusion (28) and the rectangular opening (29). A top cover (30) is provided at the end of the nozzle body (1). The top cover (30) is fixed to the nozzle body (1) and the limiting tube (27) is detachably connected. One end of the rectangular opening (29) is close to the top cover (30) and is open outward. The other end of the rectangular opening (29) is far away from the top cover (30). The center of the top cover (30) is provided with a mounting hole matching the switching button (11). The edge of the mounting hole extends toward the limiting tube (27) and a limiting ring (31) corresponding to the protrusion (28) is in contact.

7. The internal air duct switching structure of a hair curler nozzle according to claim 5, characterized in that, The outer side wall of the drive rod (13) is provided with a limiting step surface (32) that corresponds to the end of the limiting tube (27) which is suspended. The drive rod (13) is located inside the limiting tube (27) with a guide bar (33) that is parallel to it. The inner side wall of the limiting tube (27) is provided with a guide groove (34) that matches the guide bar (33). The guide groove (34) is located on the side wall of the limiting tube (27) which is suspended. The drive rod (13) is slidably connected to the limiting tube (27) through the matching of the guide bar (33) and the guide groove (34).

8. The internal air duct switching structure of a curling iron nozzle according to claim 3, characterized in that, One end of the separator (4) is provided with an installation groove (2) that matches the rotating cylinder (19). The rotating cylinder (19) is rotatably connected to the installation groove (2). The stop block (8) and the ring body (20) are both located outside the opening end of the installation groove (2). The bottom center of the installation groove (2) is provided with a through hole (35). An annular support plate (36) is fixed in the through hole (35). The guide seat (15) is located at one end of the through hole (35) and on one side of the support plate (36). The spring (14) is located on the other side of the support plate (36). The drive rod (13) is located in the through hole (35) and passes through the support plate (36). The drive rod (13) is elastically connected to the support plate (36) through the spring (14).

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