Portable hair dryer

Abstract

The utility model discloses a portable hair dryer which comprises a rack, an air pipe set and a hot air assembly, the air pipe set comprises an air outlet pipe capable of swinging in a reciprocating mode relative to the rack, the air outlet pipe is in a strip shape and is provided with an air outlet channel extending in the length direction of the air outlet pipe, and a plurality of air outlets communicated with the air outlet channel are formed in the side, back to the rack, of the air outlet pipe. The multiple air outlets are formed in the length direction of the air outlet pipe at intervals, and the hot air assembly is arranged in the air pipe set and supplies air to the air outlet channel. The air outlet pipe capable of swinging left and right in a reciprocating mode relative to the rack is arranged on the rack, the air outlet pipe is arranged to be in a strip shape and is provided with the air outlet channel extending in the length direction of the air outlet pipe and the air outlets communicated with the air outlet channel, and the air outlets are arranged on the side, back to the rack, of the air outlet pipe at intervals in the length direction of the air outlet pipe. The air outlet pipe can cover the leavened face of a user and blow the leavened face of the user when swinging left and right in a reciprocating mode, the single-air-duct multi-air-port mode is adopted, the air duct structure is simple, and the overall size is small.

Description

Technical Field

[0001] This utility model relates to the field of hair dryer technology, and in particular to a portable hair dryer. Background Technology

[0002] A hair dryer is a device used to dry hair. Existing hair dryers include a frame and a hair dryer cover at the top of the frame. The hair dryer cover has a drying chamber for the head to enter, and the walls of the drying chamber have multiple air outlets. The hair dryer cover also contains multiple air ducts that exit through corresponding air outlets, resulting in a complex airflow system. When drying hair, the user places their head into the drying chamber, and air is blown out through the air outlets, thus drying the user's hair. Because existing hair dryers have multiple air ducts within the hair dryer cover, the airflow system is complex, and the overall size of the hair dryer is bulky. Utility Model Content

[0003] The purpose of this invention is to provide a portable hair dryer to solve the problem that existing hair dryers have multiple air ducts inside the hair dryer cover that output air through corresponding air outlets, resulting in complex air ducts inside the hair dryer cover and a large overall size of the hair dryer.

[0004] This utility model is achieved through the following technical solution:

[0005] A portable hair dryer includes a frame, an air duct assembly, and a hot air assembly. The air duct assembly includes an air outlet pipe that can reciprocate relative to the frame. The air outlet pipe is strip-shaped and has an air outlet channel extending along its length. The side of the air outlet pipe facing away from the frame has several air outlets communicating with the air outlet channel. The several air outlets are spaced apart along the length of the air outlet pipe. The hot air assembly is disposed in the air duct assembly for supplying air to the air outlet channel.

[0006] Furthermore, the air duct assembly also includes an air inlet pipe extending forward and backward. The air inlet pipe is rotatably connected to the frame and connected to the air outlet pipe. The air outlet pipe is at least partially set at an angle to the air inlet pipe. The frame is provided with a power mechanism. The air inlet pipe is driven by the power mechanism to reciprocate around the axis of the air inlet pipe. When the air inlet pipe rotates, it causes the air outlet pipe to swing.

[0007] Furthermore, the air inlet pipe has an air inlet channel and an air inlet, the air inlet and the air outlet are opposite each other front to back, the air inlet is at the rear and the air outlet is at the front, the air outlet pipe is located at the front end of the air inlet pipe and communicates with the air inlet pipe; the hot air assembly is housed in the air inlet channel and is detachably fixedly connected to the air inlet pipe, and an external air source component for connecting an external air duct is provided on one side of the air inlet.

[0008] Furthermore, the power mechanism includes a first motor, a driving gear, and a driven gear. The first motor is mounted on the frame, the driven gear passes through the air inlet pipe, and the driving gear is mounted on the output shaft of the first motor and meshes with the driven gear. Alternatively, the power mechanism includes a second motor, a driving wheel, a driven wheel, and a connecting rod. The second motor is mounted on the frame, the driving wheel is mounted on the output shaft of the second motor, the driven wheel passes through the air inlet pipe, and the connecting rod is rotatably connected to the driving wheel and the driven wheel respectively. When the second motor rotates, the driving wheel drives the driven wheel to rotate through the connecting rod.

[0009] Furthermore, the air outlet pipe includes a lower air outlet pipe and an upper air outlet pipe. The lower air outlet pipe is located at the front end of the air inlet pipe and is set at an angle to the air inlet pipe. The upper air outlet pipe extends forward from the upper end of the lower air outlet pipe. The lower air outlet pipe and the upper air outlet pipe gradually transition to form an arc-shaped pipe. The lower air outlet pipe has a lower air outlet nozzle, and the upper air outlet pipe has an upper air outlet nozzle. The upper air outlet nozzle is inclined backward from top to bottom, and the lower air outlet nozzle is inclined forward from top to bottom. The air outlet ends of the lower air outlet nozzle and the upper air outlet nozzle constitute a plurality of air outlets.

[0010] Furthermore, there are several upper air outlets, which are spaced apart along the length of the upper air outlet pipe. The angle between the upper air outlets and the horizontal plane gradually decreases in the direction away from the lower air outlet pipe. Among the upper air outlets, the foremost upper air outlet is flat and cylindrical, while the remaining upper air outlets are cylindrical. And / or there are several lower air outlets, which are spaced apart along the length of the lower air outlet pipe. Among the lower air outlets, the uppermost lower air outlet is flat and cylindrical, while the lowermost lower air outlet is cylindrical.

[0011] Furthermore, the frame has a linkage group extending vertically, and the air outlet pipe can swing back and forth relative to the frame, deviating from the linkage group. The angle between the air outlet pipe and the axis of the linkage group is defined as the swing angle. When the air outlet pipe swings to the left, the swing angle ranges from 0° to 45°, and when the air outlet pipe swings to the right, the swing angle ranges from 0° to 45°.

[0012] Furthermore, the outer wall of the hot air assembly is tightly fitted to the inner wall of the air inlet channel, the hot air assembly can move along the air inlet channel, the inner wall of the air inlet channel is provided with a stop member, the stop member abuts against the hot air assembly to restrict the hot air assembly from moving forward; and / or the air inlet pipe is provided with a protective cover covering the air inlet, the protective cover is detachably fixedly connected to the air inlet pipe and has a suction hole communicating with the air inlet channel; and / or the external air source component is a magnetic suction component extending circumferentially along the air inlet, the external air source component is provided on the outer wall of the air duct assembly; or the external air source component is provided on the inner wall of the air duct; or the external air source component is attached to the rear end of the air duct assembly.

[0013] Furthermore, the hot air assembly includes an inner cylinder, a third motor, fan blades, and a heating wire. The inner cylinder is slidably connected within the air inlet channel and is tightly fitted to the air inlet channel. The third motor, the fan blades, and the heating wire are disposed within the inner cylinder. The fan blades are driven by the third motor, and the heating wire is disposed on the side of the fan blades facing away from the air inlet.

[0014] Furthermore, the air inlet pipe and the air outlet pipe are detachably and fixedly connected; the frame includes a leg assembly and a connecting rod assembly, the connecting rod assembly includes several connecting rods connected sequentially from bottom to top, any two adjacent connecting rods are detachably and fixedly connected, the leg assembly passes through the connecting rod assembly and can move up and down along the connecting rod assembly, the leg assembly flips outward to unfold or flips inward to retract onto the connecting rod assembly when moving along the connecting rod assembly; or the frame includes a base and a connecting rod assembly, the connecting rod assembly includes several connecting rods connected sequentially from bottom to top, any two adjacent connecting rods are detachably and fixedly connected, the lowest connecting rod is detachably and fixedly connected to the base, the base is disc-shaped.

[0015] The advantage of this technical solution is that by configuring an air outlet duct that can swing back and forth relative to the frame on the frame, the air outlet duct is configured as a strip and has an air outlet channel extending along its length and several air outlets communicating with the air outlet channel. Several air outlets are arranged on the side of the air outlet duct facing away from the frame and are spaced apart along the length of the air outlet duct, so that the air outlet duct can cover the user's hair surface and blow on the user's hair surface when it swings back and forth. The single air channel and multiple air outlets are set up, which makes the air channel structure simple and the overall size of the hair dryer small. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0018] Figure 1 This is a three-dimensional representation of a portable hair dryer disclosed in Example 1. Figure 1 ;

[0019] Figure 2 This is a three-dimensional representation of a portable hair dryer disclosed in Example 1. Figure 2 ;

[0020] Figure 3 This is a three-dimensional representation of a portable hair dryer disclosed in Example 1. Figure 3 ;

[0021] Figure 4 This is a partial exploded view of a portable hair dryer disclosed in Embodiment 1;

[0022] Figure 5 yes Figure 4 A magnified view of a section at point A in the middle;

[0023] Figure 6 This is a three-dimensional representation of a portable hair dryer disclosed in Example 1. Figure 4 (Hidden rack section of the casing);

[0024] Figure 7 yes Figure 6 A magnified view of a section at point B in the middle;

[0025] Figure 8 This is a cross-sectional view of a portable hair dryer disclosed in Embodiment 1;

[0026] Figure 9 yes Figure 8 A magnified view of a section at point C;

[0027] Figure 10 This is a three-dimensional view of the air outlet duct in Example 1;

[0028] Figure 11 This is a perspective view of the power mechanism in Example 2;

[0029] Figure 12 This is a perspective view of a portable hair dryer disclosed in Example 3. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Example 1: As Figure 1-10 As shown, the portable hair dryer includes a frame 1, an air duct assembly 2, and a hot air assembly 3. The air duct assembly 2 includes an air outlet duct 201 that can swing back and forth relative to the frame 1. The air outlet duct 201 is strip-shaped and has an air outlet channel 202 extending along its length. On the side of the air outlet duct 201 facing away from the frame 1, there are several air outlets 203 that communicate with the air outlet channel 202. The several air outlets 203 are spaced apart along the length of the air outlet duct 201. The hot air assembly 3 is located in the air duct assembly 2 and is used to deliver air to the air outlet channel 202. The frame 1 has a vertically extending connecting rod assembly 102. The air outlet duct 201 can swing left and right relative to the frame 1 and deviate from the connecting rod assembly 102.

[0032] When using this portable hair dryer, the user stands or sits on one side of the air outlet 201, which swings back and forth, and air is emitted from the air outlet 203. Since the air outlet 201 covers the user's hair when it swings back and forth, the user's hair can be dried by the back and forth swing of the air outlet 201 and the air emitted from the air outlet 203.

[0033] In summary, this embodiment provides a portable hair dryer to solve the problem of existing hair dryers having multiple air ducts with corresponding air outlets inside the hair dryer cover, resulting in complex air ducts and a large overall size of the hair dryer. The solution is achieved by configuring an air outlet pipe 201 on the frame 1 that can swing back and forth relative to it. The air outlet pipe 201 is configured as a strip and has an air outlet channel 202 extending along its length and several air outlets 203 communicating with the air outlet channel 202. Several air outlets 203 are arranged on the side of the air outlet pipe 201 facing away from the frame 1 and spaced apart along the length of the air outlet pipe 201. This allows the air outlet pipe 201 to cover and blow-dry the user's hair when it swings back and forth. The single-duct, multi-outlet configuration simplifies the air duct structure and reduces the overall size of the hair dryer.

[0034] In embodiment 1 of this utility model, the air duct assembly 2 further includes an air inlet duct 204 extending front to back. The air inlet duct 204 is rotatably connected to the frame 1 and connected to the air outlet duct 201. The air outlet duct 201 is at least partially set at an angle to the air inlet duct 204. A power mechanism 4 is provided on the frame 1. The air inlet duct 204 is driven by the power mechanism 4 to reciprocate around its axis. When the air inlet duct 204 rotates, it causes the air outlet duct 201 to swing. The above arrangement, by configuring the air inlet duct 204 and the power mechanism 4 on the frame 1, with the air inlet duct 204 extending front to back and being driven by the power mechanism 4 to rotate around its axis, and the air outlet duct 201 connected to the air inlet duct 204 and at least partially set at an angle to it, allows the air outlet duct 201 to swing and blow on the hair when the air inlet duct 204 rotates.

[0035] In Embodiment 1 of this utility model, the power mechanism 4 includes a first motor 401, a driving gear 402, and a driven gear 403. The first motor 401 is mounted on the frame 1, the driven gear 403 passes through the air inlet pipe 204, and the driving gear 402 is mounted on the output shaft of the first motor 401 and meshes with the driven gear 403. This configuration, by arranging the power mechanism 4 as a driven gear 403 passing through the air inlet pipe 204, a driving gear 402 meshing with the driven gear 403, and a first motor 401 driving the driving gear 402 to rotate, enables the power mechanism 4 to drive the air inlet pipe 204 to swing. The drive structure is simple and easy to implement.

[0036] In Embodiment 1 of this utility model, the air outlet duct 201 includes a lower air outlet duct 205 and an upper air outlet duct 206. The lower air outlet duct 205 is located at the front end of the air inlet duct 204 and is set at an angle to the air inlet duct 204. The upper air outlet duct 206 extends forward from the upper end of the lower air outlet duct 205, and the lower air outlet duct 205 and the upper air outlet duct 206 gradually transition to form an arc-shaped duct 207. Specifically, the lower air outlet duct 205 and the upper air outlet duct 206 are perpendicular to each other, and the lower air outlet duct 205 is perpendicular to the air inlet duct 204. By configuring the air outlet duct 201 into a lower air outlet duct 205 and an upper air outlet duct 206, the air outlet duct 201 is L-shaped, which adapts to the shape of the user's head. When the air outlet duct 201 rotates, it can cover most of the hair surface, resulting in a better hair drying effect.

[0037] In Embodiment 1 of this utility model, the lower air outlet duct 205 has a lower air outlet nozzle 208, and the upper air outlet duct 206 has an upper air outlet nozzle 209. The upper air outlet nozzle 209 is tilted backward from top to bottom, and the lower air outlet nozzle 208 is tilted forward from top to bottom. The air outlet ends of the lower air outlet nozzle 208 and the upper air outlet nozzle 209 constitute a plurality of air outlets 203. The above arrangement, by configuring the upper air outlet nozzle 209 to tilt backward from top to bottom, allows the upper air outlet nozzle 209 to blow air downward and backward to blow on the user's forehead hair, preventing the user's forehead hair from blowing forward and covering the user's face, thus affecting the comfort of hair drying. At the same time, by configuring the lower air outlet nozzle 208 to tilt forward from top to bottom, allows the lower air outlet nozzle 208 to blow on the hair downward and forward, thus preventing the user's back hair from blowing backward and getting tangled on the frame 1, thus affecting the comfort of hair drying.

[0038] In Embodiment 1 of this utility model, there are several upper air outlets 209, which are spaced apart along the length of the upper air outlet duct 206. The angle between the upper air outlets 209 and the horizontal plane gradually decreases in the direction away from the lower air outlet duct 205. By configuring the angle between the upper air outlets 209 and the horizontal plane to gradually decrease in the direction away from the lower air outlet duct 205, the effect of the upper air outlets 209 blowing hair backward gradually weakens from front to back. This allows the upper air outlets 209 to blow hair backward on the user's forehead and downward on the back of the user's head, resulting in a better overall blowing effect.

[0039] In Embodiment 1 of this utility model, among the plurality of upper air outlets 209, the foremost upper air outlet 209 is in the shape of a flat cylinder, while the remaining upper air outlets 209 are cylindrical. This arrangement, by configuring the foremost upper air outlet 209 into a flat cylinder shape, ensures that the foremost upper air outlet 209 blows air backward effectively.

[0040] In Embodiment 1 of this utility model, there are several lower air outlets 208, which are spaced apart along the length of the lower air outlet pipe 205. Among the lower air outlets 208, the uppermost lower air outlet 208 is flattened cylindrical, and the lowermost lower air outlet 208 is cylindrical. This arrangement, by configuring the lower air outlets 208 such that the uppermost lower air outlet 208 is flattened cylindrical and the lowermost lower lower air outlet 208 is cylindrical, ensures a reasonable configuration of the lower air outlets 208 and provides excellent downward and forward blowing effect.

[0041] In Embodiment 1 of this utility model, the air outlet pipe 201 is covered by a shell 200 that matches its shape and exposes a number of air outlets 203.

[0042] In Embodiment 1 of this utility model, the angle between the air outlet pipe 201 and the axis of the connecting rod assembly 102 is defined as the swing angle. When the air outlet pipe 201 swings to the left, the swing angle ranges from 0° to 45°. When the air outlet pipe 201 swings to the right, the swing angle ranges from 0° to 45°.

[0043] In embodiment 1 of this utility model, the air inlet pipe 204 has an air inlet channel 210 and an air inlet 211. The air inlet 211 and the air outlet 203 are opposite each other, with the air inlet 211 being rearward and the air outlet 203 being frontward. The air outlet pipe 201 is located at the front end of the air inlet pipe 204 and is connected to the air inlet pipe 204. The air inlet channel 210 is connected to the air outlet channel 202. The hot air assembly 3 is housed in the air inlet channel 210 and is detachably fixedly connected to the air inlet pipe 204. An external air source component 6 for connecting an external air duct is provided on one side of the air inlet 211.

[0044] This portable hair dryer has the following two usage modes:

[0045] In mode 1, the hot air assembly 3 is installed in the air inlet channel 210. The hot air assembly 3 drives the gas to flow from the air inlet 211 to the air outlet 203 along the air inlet channel 210 to achieve hair blowing.

[0046] In mode two, the hot air assembly 3 is detached from the air inlet channel 210, and a household or commercial hair dryer is connected to the air inlet pipe 204 via an external air source component 6. The household or commercial hair dryer drives the air to flow along the air inlet channel 210 from the air inlet 211 to the air outlet 203, thereby achieving hair drying.

[0047] In summary, the above configuration, by arranging a hot air assembly 3 that is detachably and fixedly connected to the air inlet pipe 204 in the air inlet channel 210, and arranging an external air source component 6 for connecting an external air duct on one side of the air inlet 211, enables this portable hair dryer to have multiple usage modes. Users can change the air source according to their needs, making it convenient to use, highly adaptable, and easy to maintain.

[0048] In Embodiment 1 of this utility model, the outer wall of the hot air assembly 3 is tightly fitted to the inner wall of the air inlet channel 210, allowing the hot air assembly 3 to move along the air inlet channel 210. A stop 212 is provided on the inner wall of the air inlet channel 210, which abuts against the hot air assembly 3 to restrict its forward movement. The hot air assembly 3 is inserted into the air inlet channel 210 through the air inlet 211 and can move along the air inlet channel 210. This arrangement, by providing a stop 212 on the inner wall of the air inlet channel 210 to restrict the forward movement of the hot air assembly 3, prevents the hot air assembly 3 from being over-inserted into the air inlet channel 210 and becoming difficult to remove.

[0049] In Embodiment 1 of this utility model, the air inlet pipe 204 is provided with a protective cover 5 that covers the air inlet 211. The protective cover 5 is detachably fixedly connected to the air inlet pipe 204 and has an air suction hole 501 communicating with the air inlet channel 210. The above-mentioned arrangement, by configuring the protective cover 5 on the air inlet pipe 204 to cover the air inlet 211, avoids the user accidentally touching the motor and causing danger when using the device in mode 1.

[0050] In Embodiment 1 of this utility model, the external air source component 6 is a magnetic component extending circumferentially along the air inlet 211. When using Mode 2, the user magnetically attaches the air duct to the external air source component 6, making the connection simple and quick.

[0051] In this embodiment of the utility model, the external air source component 6 is provided on the outer wall of the air duct assembly 2, and when the air duct is magnetically attached to the external air source component 6, it is sleeved on the outside of the air inlet pipe 204.

[0052] In another embodiment, the external air source component 6 is located on the inner wall of the air duct, and when the air duct is magnetically attached to the external air source component 6, it is partially embedded in the air inlet pipe 204.

[0053] In another embodiment, the external air source component 6 is attached to the rear end of the air duct assembly 2, and when the air duct is magnetically attached to the external air source component 6, it abuts against the rear end of the air inlet duct 204.

[0054] In Embodiment 1 of this utility model, the hot air assembly 3 includes an inner cylinder (not shown in the figure), a third motor (not shown in the figure), fan blades (not shown in the figure), and a heating wire (not shown in the figure). The inner cylinder is slidably connected within the air inlet channel 210 and is tightly fitted to the air inlet channel 210. The third motor, fan blades, and heating wire are disposed within the inner cylinder. The fan blades are driven by the third motor, and the heating wire is disposed on the side of the fan blades facing away from the air inlet 211. Specifically, the hot air assembly 3 is a conventional hot air motor. The above arrangement, by configuring the hot air assembly 3 as an inner cylinder, a third motor, fan blades, and a heating wire, with the fan blades driven by the third motor and the heating wire disposed on the side of the fan blades facing away from the air inlet 211, enables the hot air assembly 3 to drive gas to flow along the air duct from the air inlet 211 to the air outlet 203, delivering hot or cold air.

[0055] In Embodiment 1 of this utility model, the air inlet pipe 204 and the air outlet pipe 201 are detachably and fixedly connected. The frame 1 includes a leg assembly 101 and a connecting rod assembly 102. The connecting rod assembly 102 includes several connecting rods 103 connected sequentially from bottom to top. Any two adjacent connecting rods 103 are detachably and fixedly connected. The leg assembly 101 passes through the connecting rod assembly 102 and can move up and down along the connecting rod assembly 102. When the leg assembly 101 moves along the connecting rod assembly 102, it flips outward to unfold or flips inward to retract onto the connecting rod assembly 102. By configuring the air inlet pipe 204 and the air outlet pipe 201 to be detachably and fixedly connected, and configuring the frame 1 as a leg assembly 101 and a connecting rod assembly 102, the connecting rod assembly 102 is composed of several detachably and fixedly connected connecting rods 103, and the leg assembly 101 can be retracted onto the connecting rod assembly 102, allowing this portable hair dryer to be disassembled and packaged, saving packaging and transportation costs.

[0056] Example 2: As Figure 11As shown, the difference between this embodiment and Embodiment 1 is that the power mechanism 4 includes a second motor 404, a driving wheel 405, a driven wheel 406, and a connecting rod 407. The second motor 404 is mounted on the frame 1, the driving wheel 405 is mounted on the output shaft of the second motor 404, the driven wheel 406 passes through the air inlet pipe 204, and the connecting rod 407 is rotatably connected to the driving wheel 405 and the driven wheel 406 respectively. When the second motor 404 rotates, the driving wheel 405 drives the driven wheel 406 to rotate through the connecting rod 407.

[0057] Example 3: As Figure 12 As shown, the difference between this and Embodiment 1 is that the frame 1 includes a base 104 and a connecting rod assembly 102. The connecting rod assembly 102 includes several connecting rods 103 connected sequentially from bottom to top. Any two adjacent connecting rods 103 are detachably fixedly connected. The lowest connecting rod 103 is detachably fixedly connected to the base 104. The base 104 is in the shape of a disc.

[0058] It should be understood that the terms "first," "second," etc., are used in this utility model to describe various information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this utility model, "first" information can also be referred to as "second" information, and similarly, "second" information can also be referred to as "first" information. In addition, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0059] The above description provides one or more embodiments in conjunction with specific content, and does not imply that the specific implementation of this utility model is limited to these descriptions. Any methods or structures that are similar to or identical to those of this utility model, or any technical deductions or substitutions made based on the concept of this utility model, should be considered as protected by this utility model.

Claims

1. A portable hair dryer, characterized in that, The assembly includes a frame (1), a duct assembly (2), and a hot air assembly (3). The duct assembly (2) includes an air outlet duct (201) that can reciprocate relative to the frame (1). The air outlet duct (201) is strip-shaped and has an air outlet channel (202) extending along its length. The side of the air outlet duct (201) facing away from the frame (1) is provided with a plurality of air outlets (203) that communicate with the air outlet channel (202). The plurality of air outlets (203) are spaced apart along the length of the air outlet duct (201). The hot air assembly (3) is located in the duct assembly (2) and is used to supply air to the air outlet channel (202).

2. A portable hair dryer according to claim 1, characterized in that, The air duct assembly (2) also includes an air inlet duct (204) extending forward and backward. The air inlet duct (204) is rotatably connected to the frame (1) and connected to the air outlet duct (201). The air outlet duct (201) is at least partially set at an angle to the air inlet duct (204). The frame (1) is provided with a power mechanism (4). The air inlet duct (204) is driven by the power mechanism (4) to reciprocate around the axis of the air inlet duct (204). When the air inlet duct (204) rotates, it causes the air outlet duct (201) to swing.

3. A portable hair dryer according to claim 2, characterized in that, The air inlet pipe (204) has an air inlet channel (210) and an air inlet (211). The air inlet (211) and the air outlet (203) are opposite each other. The air inlet (211) is located at the rear and the air outlet (203) is located at the front. The air outlet pipe (201) is located at the front end of the air inlet pipe (204) and is connected to the air inlet pipe (204). The hot air assembly (3) is housed in the air inlet channel (210) and is detachably fixedly connected to the air inlet pipe (204). An external air source component (6) for connecting an external air duct is provided on one side of the air inlet (211).

4. A portable hair dryer according to claim 2, characterized in that, The power mechanism (4) includes a first motor (401), a driving gear (402), and a driven gear (403). The first motor (401) is mounted on the frame (1), the driven gear (403) passes through the air inlet pipe (204), and the driving gear (402) is mounted on the output shaft of the first motor (401) and meshes with the driven gear (403). Alternatively, the power mechanism (4) may include a second motor (404), a drive wheel (405), a driven wheel (406), and a connecting rod (407). The second motor (404) is mounted on the frame (1), the drive wheel (405) is mounted on the output shaft of the second motor (404), the driven wheel (406) passes through the air inlet pipe (204), and the connecting rod (407) is rotatably connected to the drive wheel (405) and the driven wheel (406) respectively. When the second motor (404) rotates, the drive wheel (405) drives the driven wheel (406) to rotate through the connecting rod (407).

5. A portable hair dryer according to claim 2, characterized in that, The air outlet pipe (201) includes a lower air outlet pipe (205) and an upper air outlet pipe (206). The lower air outlet pipe (205) is located at the front end of the air inlet pipe (204) and is set at an angle to the air inlet pipe (204). The upper air outlet pipe (206) extends forward from the upper end of the lower air outlet pipe (205). The lower air outlet pipe (205) and the upper air outlet pipe (206) gradually transition to form an arc-shaped pipe (207). The lower air outlet pipe (205) has a lower air outlet nozzle (208), and the upper air outlet pipe (206) has an upper air outlet nozzle (209). The upper air outlet nozzle (209) is inclined backward from top to bottom, and the lower air outlet nozzle (208) is inclined forward from top to bottom. The air outlet ends of the lower air outlet nozzle (208) and the upper air outlet nozzle (209) constitute a plurality of air outlets (203).

6. A portable hair dryer according to claim 5, characterized in that, There are several upper air outlets (209), and the several upper air outlets (209) are spaced apart along the length of the upper air outlet pipe (206). The angle between the several upper air outlets (209) and the horizontal plane gradually decreases in the direction away from the lower air outlet pipe (205). Among the several upper air outlets (209), the foremost upper air outlet (209) is flat cylindrical, and the remaining upper air outlets (209) are cylindrical. And / or there are several lower air outlets (208), and several lower air outlets (208) are spaced apart along the length of the lower air outlet pipe (205). Among the several lower air outlets (208), the upper lower air outlet (208) is flat cylindrical, and the lower lower air outlet (208) is cylindrical.

7. A portable hair dryer according to claim 1, characterized in that, The frame (1) has a linkage group (102) extending vertically. The air outlet pipe (201) can swing back and forth relative to the frame (1) and deviate from the linkage group (102). The angle between the air outlet pipe (201) and the axis of the linkage group (102) is defined as the swing angle. When the air outlet pipe (201) swings to the left, the swing angle ranges from 0° to 45°. When the air outlet pipe (201) swings to the right, the swing angle ranges from 0° to 45°.

8. A portable hair dryer according to claim 3, characterized in that, The outer wall of the hot air assembly (3) is closely fitted with the inner wall of the air inlet channel (210). The hot air assembly (3) can move along the air inlet channel (210). The inner wall of the air inlet channel (210) is provided with a stop (212). The stop (212) abuts against the hot air assembly (3) to restrict the hot air assembly (3) from moving forward. And / or the air inlet pipe (204) is provided with a protective cover (5) covering the air inlet (211), the protective cover (5) is detachably fixedly connected to the air inlet pipe (204) and has an air suction hole (501) communicating with the air inlet channel (210); And / or the external air source component (6) is a magnetic suction component extending circumferentially along the air inlet (211), the external air source component (6) is disposed on the outer wall of the air duct assembly (2); or the external air source component (6) is disposed on the inner wall of the air duct; or the external air source component (6) is attached to the rear end of the air duct assembly (2).

9. A portable hair dryer according to claim 3, characterized in that, The hot air assembly (3) includes an inner cylinder, a third motor, a fan blade, and a heating wire. The inner cylinder is slidably connected to the air inlet channel (210) and is tightly fitted to the air inlet channel (210). The third motor, the fan blade, and the heating wire are located inside the inner cylinder. The fan blade is driven by the third motor, and the heating wire is located on the side of the fan blade facing away from the air inlet (211).

10. A portable hair dryer according to claim 2, characterized in that, The air inlet pipe (204) and the air outlet pipe (201) are detachably and fixedly connected; The frame (1) includes a leg assembly (101) and a connecting rod assembly (102). The connecting rod assembly (102) includes several connecting rods (103) connected sequentially from bottom to top. Any two adjacent connecting rods (103) are detachably fixedly connected. The leg assembly (101) passes through the connecting rod assembly (102) and can move up and down along the connecting rod assembly (102). When the leg assembly (101) moves along the connecting rod assembly (102), it flips outward. The mechanism can be unfolded or flipped inward and folded onto the linkage group (102); or the frame (1) includes a base (104) and a linkage group (102), the linkage group (102) includes a number of connecting rods (103) connected sequentially from bottom to top, any two adjacent connecting rods (103) are detachably fixedly connected, the lowest connecting rod (103) is detachably fixedly connected to the base (104), and the base (104) is in the shape of a disc.

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