A folding wind comb structure
By setting the PCBA board between the motor and the folding head in the air comb and setting a damping structure at the adapter, the problem of low heat dissipation efficiency of the air comb circuit board is solved, and a better heat dissipation effect and user experience is achieved.
Patent Information
- Application Number
- CN202420871872.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-25
- Publication Date
- 2025-04-01
- Estimated Expiration
- 2034-04-25
AI Technical Summary
The position design of the existing air comb circuit board is unreasonable, resulting in low heat dissipation efficiency of the circuit board and prone to downtime.
A folding air comb structure is designed. By setting the PCBA board between the motor and the folding head, the air flow passes through the motor and takes away heat after the air flows through the PCBA board and takes away heat, thereby achieving better heat dissipation effect. In addition, a damping structure is provided at the adapter to enhance the switching feel of the air comb during state switching.
It effectively improves the heat dissipation efficiency of PCBA board, reduces downtime, improves consumer experience, and facilitates the storage and carrying of the air comb.
Smart Images

Figure CN222692907U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of hairdressing equipment, and in particular relates to a folding wind comb structure. Background Art
[0002] With the rapid improvement of people's living standards, people pay more attention to their appearance, and the beauty of their hairstyle accounts for a large proportion of the evaluation of their appearance. Therefore, hair combs are inseparable from people's daily hairdressing needs. However, the position of the circuit board of many hair combs is not designed reasonably, which makes the heat dissipation efficiency of the circuit board low, resulting in the phenomenon of easy downtime during use, which in turn affects the consumer's experience and the life of the hair comb.
[0003] For example, in Chinese utility model patent CN211459143U, the handle includes an outer shell and an inner shell, a circuit board is provided on the outer wall of the inner shell, a fixing block is provided on the outer wall of the inner shell, a positioning groove is formed between the fixing block and the inner shell, and the circuit board is inserted into the positioning groove accordingly, and the fixing block can position the circuit board. However, although arranging the circuit board between the outer shell and the inner shell of the handle can fix the circuit board well, it is also easy to cause the problem of difficulty in heat dissipation of the circuit board; therefore, installing the circuit board in a reasonable heat dissipation position is a particularly critical step to extend the life of the air comb. Utility Model Content
[0004] (1) Technical issues to be resolved
[0005] The utility model provides a folding wind comb structure, aiming to solve the problem that the existing wind comb circuit board position design is unreasonable, resulting in low heat dissipation efficiency of the circuit board and easy downtime.
[0006] (2) Technical solution
[0007] The utility model provides a folding wind comb structure, comprising a folding head and a handle, the folding head and the handle are rotatably coupled and connected so that the wind comb can be in a straight state or a bent state; a connecting hole is provided between the folding head and the handle, an air inlet is provided at the other end of the handle, and an air outlet is provided at the other end of the folding head; a damping structure is also provided at the rotating connection between the folding head and the handle; a first inner cavity is provided at one end of the handle close to the folding head, and a second inner cavity is provided at one end close to the air inlet, one end of the first inner cavity is communicated with the connecting hole, and the other end is communicated with the second inner cavity, and the other end of the second inner cavity is communicated with the air inlet; a motor is provided in the second inner cavity, and a PCBA board is provided in the first inner cavity. When in use, the airflow enters from the air inlet and is accelerated to flow to the PCBA board under the drive of the motor. When the airflow passes through the PCBA board, it takes away the heat generated by the PCBA board, thereby achieving the effect of heat dissipation and cooling.
[0008] Furthermore, a first inclined surface is provided at the transition of the folding head, a second inclined surface is provided at the transition of the handle, an annular connecting portion is provided on the second inclined surface, a convex ring is provided on the side wall of the connecting portion, an annular groove corresponding to the convex ring is provided on the inner side wall of the first inclined surface, and the convex ring is rotatably arranged in the annular groove.
[0009] Furthermore, the damping structure includes a gear ring arranged with concave and convex intervals on the convex ring, a through hole on the inner wall of the ring groove, and a damping assembly in the through hole, the damping assembly includes a ball, an elastic member and a fixing member, the two ends of the elastic member are respectively pressed against the ball and the fixing member, the fixing member is detachably connected to the inner wall of the through hole, and the other end of the ball abuts against the recess of the gear ring.
[0010] Furthermore, a locking structure is provided at the connection between the folding head and the handle, and the locking structure includes a locking hole arranged on the first inclined surface, a locking groove corresponding to the locking hole on the second inclined surface, and a first locking piece arranged on the handle, and the first locking piece is slidably connected to the handle.
[0011] Furthermore, the first locking member includes a spring block, which is elastically connected to the handle via an elastomer. Under the elastic force of the elastomer, the first locking member maintains a tendency to move toward the folding head and is inserted into the locking hole through the locking groove, thereby limiting the rotation of the folding head.
[0012] Furthermore, the folding head is provided with two locking holes, which are respectively engaged with the first locking member in the straight state and the bent state, so as to lock the connection state of the folding head and the handle.
[0013] Furthermore, a limit block is provided on the second inclined surface, and a limit groove used in conjunction with the limit block is provided on the first inclined surface. The limit block is slidably arranged in the limit groove, so that the folding head can rotate relative to one side of the handle.
[0014] Furthermore, an annular step is provided between the first inner cavity and the second inner cavity, and a limiting step is provided between the second inner cavity and the air inlet; a filter is provided at one end of the second inner cavity close to the air inlet; the motor and the filter are clamped between the annular step and the limiting step.
[0015] Furthermore, the inner wall of the first inner cavity is provided with a fixing column and a fixing groove for fixing the PCBA board, and the fixing groove is clamped with the edge of the peripheral wall of the PCBA board; one end of the fixing column is fixedly connected to the inner cylinder, and the other end is fixedly connected to the PCBA board.
[0016] Furthermore, a control panel is provided on the handle, and the control panel is used to control the start and stop of various components inside the wind comb;
[0017] A filter cover is provided at the air inlet, and the filter cover is detachably connected to the handle, and the detachable connection includes a snap connection or a magnetic connection;
[0018] The folding head is provided with a card slot and a second locking piece at one end of the air outlet, the card slot is used for card connection with other accessory heads, and the second locking piece is used for locking and unlocking the accessory head and the air comb.
[0019] Compared with the prior art, the beneficial effects of the utility model are:
[0020] By rotating the folding head, the wind comb can be switched between a straight state and a curved state, which is convenient for consumers to store and use. At the same time, by setting the PCBA board between the motor and the folding head, the airflow is accelerated by the motor, flows through the PCBA board and takes away the heat, thereby achieving a better heat dissipation effect of the PCBA board; at the same time, by setting a damping structure at the adapter, the wind comb has a better switching feel when switching states, thereby improving the consumer's use experience. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 This is a schematic diagram of the linear state structure of the utility model Figure 1 .
[0022] Figure 2 This is a schematic diagram of the linear state structure of the utility model Figure 2 .
[0023] Figure 3 The bending state structure of the utility model is shown in FIG. Figure 1 .
[0024] Figure 4 The bending state structure of the utility model is shown in FIG. Figure 2 .
[0025] Figure 5 This is an exploded view of the utility model.
[0026] Figure 6 It is a cross-sectional view of the utility model.
[0027] Figure 7 This is a schematic diagram of the connection structure between the folding head and the handle of the utility model.
[0028] Figure 8 It is a schematic diagram of the damping structure of the utility model.
[0029] Fig. 9 It is a partial cross-sectional view of the utility model.
[0030] Fig.10 This is a schematic diagram of the card slot structure of the utility model.
[0031] Fig.11 This is a partial exploded view of the handle of the utility model.
[0032] Reference numerals: 1-folding head, 11-folding outer cylinder, 12-folding inner cylinder, 121-first inclined plane, 1211-ring groove, 1212-limiting groove, 1213-locking hole, 122-through hole, 123-card slot, 13-heating element, 14-air guide element, 15-second locking element, 151-elastic component, 16-damping assembly, 161-fixing element, 162-elastic element, 163-round ball, 17-air outlet net, 2-handle, 21-outer cylinder, 22-inner cylinder, 221-second inclined plane, 2211-locking groove, 2212-limiting block, 222-connecting part, 2221-convex ring, 2222-gear ring, 223-first inner cavity, 2231-fixing column, 2232-fixing groove, 224-second inner cavity, 225-annular step, 226-filter, 227-limiting step, 23-first locking member, 231-elastic block, 24-elastic body, 25-PCBA board, 26-motor, 27-control panel, 271-button, 3-filter, 31-filter hole, 4-air inlet, 5-connecting hole, 6-air outlet. DETAILED DESCRIPTION
[0033] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.
[0034] like Figure 1-6 As shown, the utility model provides a foldable wind comb structure, comprising a folding head 1 and a handle 2, wherein the folding head 1 is rotatably coupled to the handle 2, so that the wind comb can present a straight state in which the central axis P1 of the folding head 1 and the central axis P2 of the handle 2 are parallel or coincident with each other, and a bent state in which the central axis P1 of the folding head 1 and the central axis P2 of the handle 2 are perpendicular or staggered to each other; when in use, while keeping the handle 2 stationary, the folding head 1 can be rotated to switch between the straight state and the bent state; the wind comb can be used in the straight state or the bent state, and at the same time, it is more convenient for consumers to store and carry in the straight state, thereby effectively solving the problem that the existing wind comb is inconvenient to carry in a bent structure;
[0035] Specifically, an air inlet 4 is provided at one end of the handle 2 away from the adapter, a connecting hole 5 is provided at the adapter between the folding head 1 and the handle 2 to connect the internal airflows of the two, and an air outlet 6 is provided at one end of the folding head 1 away from the adapter. When in use, the airflow enters the handle 2 from the air inlet 4, passes through the connecting hole 5, and is discharged from the air outlet 6;
[0036] Specifically, a first inclined surface 121 is provided at the transition of the folding head 1, and a second inclined surface 221 is provided at the transition of the handle 2. The first inclined surface 121 and the second inclined surface 221 have the same inclination. When the folding head 1 and the handle 2 are connected, the first inclined surface 121 and the second inclined surface 221 rotate and abut against each other.
[0037] Furthermore, if Figure 7-8 As shown, an annular connecting portion 222 is provided on the second inclined surface 221, a convex ring 2221 is provided on the side wall of the connecting portion 222, and an annular groove 1211 corresponding to the convex ring 2221 is provided on the inner side wall of the first inclined surface 121. When installing, the convex ring 2221 is rotatably arranged in the annular groove 1211;
[0038] Furthermore, a damping structure is provided between the convex ring 2221 and the annular groove 1211; the damping structure includes a gear ring 2222 arranged at concave and convex intervals on the convex ring 2221, a through hole 122 on the inner wall of the annular groove 1211, and a damping component 16 in the through hole 122, the damping component 16 includes a ball 163, an elastic member 162 and a fixing member 161, the two ends of the elastic member 162 are respectively pressed against the ball 163 and the fixing member 161, and the fixing member 161 is pressed against the inner wall of the through hole 122. The connection is detachable, and the other end of the ball 163 abuts against the concave part of the gear ring 2222; when the folding head 1 is rotated, the gear ring 2222 rotates relative to the annular groove 1211, thereby pushing the ball 163 to move and compressing the elastic member 162. When the ball 163 reaches the next concave part, the elastic force of the elastic member 162 causes the ball 163 to abut against the concave part again, so that when the consumer rotates the folding head 1, there is a certain damping effect, thereby obtaining a better switching feel and use experience;
[0039] Furthermore, if Fig. 9 As shown, a locking structure is further provided at the connection between the folding head 1 and the handle 2, and the locking structure includes a locking hole 1213 arranged on the first inclined surface 121, a locking groove 2211 on the second inclined surface 221 corresponding to the locking hole 1213, and a first locking member 23 arranged on the handle 2; the first locking member 23 is slidably connected to the handle 2, and the first locking member 23 also includes a spring block 231, and the spring block 231 is elastically connected to the handle 2 through an elastic body 24. When in use, under the elastic force of the elastic body 24, the first locking member 23 maintains a tendency to move toward the folding head 1 and is inserted into the locking hole 1213 through the locking groove 2211, thereby limiting the rotation of the folding head 1;
[0040] Preferably, the folding head 1 is provided with two locking holes 1213, which are respectively engaged with the first locking member 23 in the straight state and the bent state, so as to lock the straight state or the bent state;
[0041] Preferably, the elastic member 162 and the elastic body 24 may be springs or elastic silicone;
[0042] Furthermore, if Figure 7 As shown, a limit block 2212 is provided on the second inclined surface 221, and a limit groove 1212 used in conjunction with the limit block 2212 is provided on the first inclined surface 121. When in use, the limit block 2212 is slidably disposed in the limit groove 1212, so that the folding head 1 can only rotate on one side relative to the handle 2;
[0043] It should be noted that the first inclined surface 121 and the second inclined surface 221 and their corresponding structures can be interchanged on the folding head 1 and the handle 2. Therefore, the position setting of the above scheme is not the only position limitation of the utility model and cannot be used as a limitation of the utility model.
[0044] Specifically, a heating element 13 is further provided in the folding head 1. When in use, when the airflow enters the folding head 1 from the connecting hole 5 and passes through the heating element 13, the airflow is heated and discharged from the air outlet 6. In order to achieve a better air outlet effect, an air guide 14 is provided at one end of the heating element 13 close to the connecting hole 5. The end surface area of the air guide 14 close to the heating element 13 is larger than the area of the opposite end surface, so that the airflow has a diversion effect when passing through the air guide 14. The diversion effect not only enables the airflow to be in more complete contact with the heating element 13, but also reduces the airflow collision inside the folding head 1, thereby increasing the air outlet volume and air outlet speed.
[0045] Specifically, an air outlet net 17 is provided at the air outlet 6, and the air outlet net 17 is provided to prevent consumers from accidentally inserting their fingers into the folding head 1 and contacting the heating element 13 to cause burns, thereby further improving the safety of the wind comb.
[0046] Specifically, Fig.10 As shown, a card slot 123 and a second locking member 15 are provided on the outer side wall of the air outlet 6 on the folding head 1. The card slot 123 is used for card connection with other accessory heads (not shown in the drawings), and the second locking member 15 is used for locking and unlocking the accessory head and the wind comb, thereby increasing the diversity of the use of the wind comb;
[0047] Furthermore, an elastic component 151 may be provided between the second locking component 15 and the folding head 1. When replacing the accessory head, the second locking component 15 is pushed to unlock the folding head 1 and the accessory head, and then the accessory head is replaced. At this time, after the accessory head is installed through the card slot 123, the second locking component 15 is automatically locked under the elastic force of the elastic component 151.
[0048] Preferably, the elastic component 151 may be a spring or an elastic silicone material.
[0049] Specifically, Fig.11 As shown, the handle 2 includes an inner cylinder 22 and an outer cylinder 21 wrapped around the outer side of the inner cylinder 22, a first inner cavity 223 is provided at one end of the inner cylinder 22 close to the folding head 1, and a second inner cavity 224 is provided at one end close to the air inlet 4, one end of the first inner cavity 223 is communicated with the connecting hole 5, and the other end is communicated with the second inner cavity 224, and the other end of the second inner cavity 224 is communicated with the air inlet 4; an annular step 225 is further provided between the first inner cavity 223 and the second inner cavity 224, and a filter screen 226 is provided at one end of the second inner cavity 224 close to the air inlet 4 for filtering dust or other debris;
[0050] Further, a motor 26 is provided in the second inner cavity 224, and a limiting step 227 is further provided between the second inner cavity 224 and the air inlet 4. The motor 26 and the filter 226 are clamped between the annular step 225 and the limiting step 227. A PCBA board 25 is provided in the first inner cavity 223. When in use, since the PCBA board 25 generates heat during use, it is easy to crash if the heat is not dissipated in time, which seriously affects the use experience of consumers. At this time, the airflow enters from the air inlet 4 and is accelerated to flow to the PCBA board 25 under the drive of the motor 26. Since the airflow temperature is lower than the self-temperature of the PCBA board 25 when it is working, and after being accelerated by the motor 26, the airflow has a very obvious heat dissipation and cooling effect when passing through the PCBA board 25, thereby effectively alleviating the crash of the PCBA board 25 caused by the untimely heat dissipation during use.
[0051] Furthermore, the inner wall of the first inner cavity 223 is provided with a fixing column 2231 and a fixing groove 2232 for fixing the PCBA board 25, and the fixing groove 2232 is clamped with the edge of the peripheral wall of the PCBA board 25; one end of the fixing column 2231 is fixedly connected to the inner cylinder 22, and the other end is fixedly connected to the PCBA board 25 by a screw, and the fixing column 2231 has a certain height, so that the PCBA board 25 is located in the first inner cavity 223 near the central axis P2, thereby increasing the contact area between the PCBA board 25 and the airflow passing through the motor 26, thereby improving the heat dissipation effect; through the setting of the fixing groove 2232 and the fixing column 2231, the PCBA board 25 is closer to the position of the central axis in the inner cylinder 22, and the heat dissipation efficiency of the PCBA board 25 is further improved;
[0052] Specifically, the folding head 1 includes a folding inner cylinder 12 and a folding outer cylinder 11 wrapped around the outer periphery of the folding inner cylinder 12. The folding outer cylinder 11 and the outer cylinder 21 of the handle 2 make the appearance of the comb softer and more aesthetically pleasing.
[0053] Specifically, Figure 3 As shown, the handle 2 is also provided with a control panel 27, and the control panel 27 is used to control the start and stop of each component inside the wind comb. The control panel 27 is also provided with a plurality of buttons 271 for the individual control of the internal components;
[0054] Specifically, the PCBA board 25 is electrically connected to the heating element 13, the motor 26, and the control panel 27 respectively;
[0055] Specifically, a filter cover 3 is provided at the air inlet 4, and a plurality of filter holes 31 are provided on the filter cover 3. When in use, the filter cover 3 has a certain filtering effect on the airflow entering the handle 2, and can filter larger dust or other debris;
[0056] Furthermore, the filter cover 3 is detachably connected to the handle 2, and the detachable connection may include a snap connection or a magnetic connection.
[0057] The following is a detailed description of the working principle of the utility model;
[0058] When in use, after connecting the air comb to an external power source, the consumer can control the rotation speed of the motor 26 and the temperature of the heating element 13 by pressing the corresponding button on the control panel 27, thereby adjusting the flow rate and temperature of the airflow discharged from the air outlet 6; for the convenience of use, the first locking member 23 can be pushed to unlock the folding head 1 and the handle 2 from each other, and the folding head 1 can be rotated to make the air comb present a bent state, and then locked by the first locking member 23 to perform the next hairdressing operation; at the same time, the consumer can also use the card slot 123 to realize the combined use of the accessory head and the folding head 1, thereby achieving more diversified air outlet effects and hairdressing functions; after use, the consumer can also switch the air comb to a straight state by rotating it for easy storage or carrying out, which further improves the convenience of storing or carrying the air comb.
[0059] The innovation of the utility model is that the wind comb can be switched between a straight state and a curved state by rotating the folding head, which is convenient for consumers to store and use. At the same time, by arranging the PCBA board between the motor and the folding head, the airflow is accelerated by the motor, flows through the PCBA board and takes away the heat, thereby achieving a better heat dissipation effect of the PCBA board; at the same time, by arranging a damping structure at the adapter, the wind comb has a better switching feel when switching states, thereby improving the consumer's use experience.
[0060] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementations that can be understood by those skilled in the art.
[0061] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.
Claims
1. A folding wind comb structure, characterized in that: The folding head (1) and the handle (2) are rotatably coupled to each other so that the wind comb can be in a straight state or a curved state; a connecting hole (5) is provided between the folding head (1) and the handle (2); an air inlet (4) is provided at the other end of the handle (2); and an air outlet (6) is provided at the other end of the folding head (1); a damping structure is also provided at the rotation connection between the folding head (1) and the handle (2); A first inner cavity (223) is provided at one end of the handle (2) close to the folding head (1), and a second inner cavity (224) is provided at one end close to the air inlet (4); one end of the first inner cavity (223) is communicated with the connecting hole (5), and the other end is communicated with the second inner cavity (224); the other end of the second inner cavity (224) is communicated with the air inlet (4); a motor (26) is provided in the second inner cavity (224), and a PCBA board (25) is provided in the first inner cavity (223).
2. A folding wind comb structure according to claim 1, characterized in that: A first inclined surface (121) is provided at the transition point of the folding head (1), a second inclined surface (221) is provided at the transition point of the handle (2), an annular connecting portion (222) is provided on the second inclined surface (221), a convex ring (2221) is provided on the side wall of the connecting portion (222), an annular groove (1211) corresponding to the convex ring (2221) is provided on the inner side wall of the first inclined surface (121), and the convex ring (2221) is rotatably arranged in the annular groove (1211).
3. A folding wind comb structure according to claim 2, characterized in that: The damping structure comprises a gear ring (2222) arranged with concave and convex spacing on the convex ring (2221), a through hole (122) on the inner wall of the annular groove (1211), and a damping component (16) in the through hole (122); the damping component (16) comprises a round ball (163), an elastic member (162) and a fixing member (161); two ends of the elastic member (162) are respectively pressed against the round ball (163) and the fixing member (161); the fixing member (161) is detachably connected to the inner wall of the through hole (122); and the other end of the round ball (163) abuts against a recessed portion of the gear ring (2222).
4. A folding wind comb structure according to claim 3, characterized in that: A locking structure is provided at the connection between the folding head (1) and the handle (2), the locking structure comprising a locking hole (1213) arranged on the first inclined surface (121), a locking groove (2211) corresponding to the locking hole (1213) on the second inclined surface (221), and a first locking member (23) arranged on the handle (2), the first locking member (23) being slidably connected to the handle (2).
5. A folding wind comb structure according to claim 4, characterized in that: The first locking member (23) comprises a spring block (231), the spring block (231) being elastically connected to the handle (2) via an elastic body (24); under the elastic force of the elastic body (24), the first locking member (23) maintains a tendency to move in the direction of the folding head (1) and is inserted into the locking hole (1213) through the locking groove (2211), thereby limiting the rotation of the folding head (1).
6. A folding wind comb structure according to claim 5, characterized in that: The folding head (1) is provided with two locking holes (1213), which are respectively engaged with the first locking member (23) in the straight state and the bent state, thereby locking the connection state between the folding head (1) and the handle (2).
7. A folding wind comb structure according to claim 2, characterized in that: A limit block (2212) is provided on the second inclined surface (221), and a limit groove (1212) used in conjunction with the limit block (2212) is provided on the first inclined surface (121), and the limit block (2212) is slidably arranged in the limit groove (1212) so that the folding head (1) can rotate unilaterally relative to the handle (2).
8. A folding wind comb structure according to claim 1, characterized in that: An annular step (225) is provided between the first inner cavity (223) and the second inner cavity (224), and a limiting step (227) is provided between the second inner cavity (224) and the air inlet (4); a filter screen (226) is provided at one end of the second inner cavity (224) close to the air inlet (4), and the motor (26) and the filter screen (226) are clamped between the annular step (225) and the limiting step (227).
9. A folding wind comb structure according to claim 1, characterized in that: The inner wall of the first inner cavity (223) is provided with a fixing column (2231) and a fixing groove (2232) for fixing the PCBA board (25); the fixing groove (2232) is clamped with the edge of the peripheral wall of the PCBA board (25); and the fixing column (2231) is fixedly connected to the PCBA board (25).
10. The folding wind comb structure according to claim 1, characterized in that: The handle (2) is provided with a control panel (27), and the control panel (27) is used to control the start and stop of various components inside the wind comb; A filter cover (3) is provided at the air inlet (4), and the filter cover (3) is detachably connected to the handle (2), wherein the detachable connection comprises a snap connection or a magnetic connection; The folding head (1) is provided with a slot (123) and a second locking member (15) at one end located at the air outlet (6) and used in conjunction with other accessory heads.
Citation Information
Patent Citations
Portable rotatable hair drier
CN211459143U