Air volume adjusting back cover structure and hair dryer

Abstract

The utility model provides a kind of air volume regulating rear cover structure and hair dryer, it is related to the technical field of household appliance, solve the technical problem that the size of air volume of hair dryer cannot be controlled in prior art.The device includes support frame, rotating cylinder, fixed cylinder and limiting piece, wherein, the rotating cylinder is sleeved on the outer wall of the fixed cylinder and the rotating cylinder can rotate relative to the fixed cylinder, the support frame is located in the fixed cylinder and the support frame is connected with the fixed cylinder, the support frame is connected with the rear end of hair dryer, one end of the limiting piece passes through the rotating cylinder and can be connected with the fixed cylinder, and the limiting piece can limit the rotating cylinder relative to the fixed cylinder rotation;A plurality of wind baffle strips are provided on the circumferential side wall of the rotating cylinder, and a plurality of air vents are provided on the circumferential side wall of the fixed cylinder.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, and in particular to a rear cover structure for adjusting airflow and a hair dryer. Background Technology

[0002] Hair dryers are everyday items, especially after washing or showering, when we use them to quickly dry our hair. However, existing hair dryers can only adjust the temperature of the airflow, not the volume, which can be inconvenient. Utility Model Content

[0003] The purpose of this utility model is to provide a rear cover structure for adjusting airflow and a hair dryer, so as to solve the technical problem that existing hair dryers cannot control the airflow. The various technical effects of the preferred technical solutions provided by this utility model are detailed below.

[0004] To achieve the above objectives, the present invention provides the following technical solution: This utility model provides a rear cover structure for adjusting airflow, including a support frame, a rotating cylinder, a fixed cylinder, and a limiting member. The rotating cylinder is sleeved on the outer wall of the fixed cylinder and can rotate relative to the fixed cylinder. The support frame is located inside the fixed cylinder and is connected to the fixed cylinder. The support frame is connected to the rear end of the blower. One end of the limiting member passes through the rotating cylinder and is connected to the fixed cylinder, and the limiting member can restrict the rotation of the rotating cylinder relative to the fixed cylinder. The rotating cylinder has multiple wind baffles on its circumferential sidewall, and the fixed cylinder has multiple ventilation openings on its circumferential sidewall.

[0005] Optionally, the limiting component includes a flange seat and a threaded rod. The rotating cylinder is provided with a mounting hole, and the fixed cylinder is provided with a plurality of abutment holes. The flange seat is installed in the mounting hole, and one end of the threaded rod passes through the flange seat and can extend into the abutment hole. The threaded rod is threadedly connected to the flange seat.

[0006] Optionally, it also includes a positioning block, wherein the rotating cylinder is provided with a connecting hole, the fixed cylinder is provided with a stroke groove, the stroke groove is provided with a plurality of positioning holes, one end of the positioning block is connected to the connecting hole, and the other end of the positioning block can be located in the positioning hole; The other end of the positioning block is provided with an arc-shaped end face, and the end of the positioning hole is provided with an arc-shaped end face.

[0007] Optionally, a fixing ring is provided at one end of the fixing cylinder, the outer end of the fixing ring is in contact with the end of the rotating cylinder, and the inside of the fixing ring is in cooperation with the support frame; The fixing ring is provided with multiple air inlets.

[0008] Optionally, it also includes a display screen and a transparent cover, the transparent cover being connected to the support frame, the display screen being located between the transparent cover and the stand of the hair dryer, and the display screen being connected to the circuit board inside the hair dryer via a connecting piece.

[0009] This utility model provides a hair dryer, including a handle, a body, a nozzle, and a rear cover structure for adjusting airflow. The nozzle is magnetically connected to the front end of the body, the rear cover structure for adjusting airflow is connected to the rear end of the body, and the side end of the body is rotatably connected to the handle.

[0010] Optionally, an air inlet mesh is provided at the rear end of the unit body, with one end of the air inlet mesh located inside the airflow adjustment rear cover structure.

[0011] Optionally, an inclined connecting post is provided on the side of the body, and an inclined end is provided at one end of the handle, with the inclined connecting post and the inclined end being rotatably connected.

[0012] Optionally, the housing includes a heating inner cylinder, a circuit board, a plasma generator, a motor, and a fan, and indicator lights and adjustment buttons are provided on the side wall of the housing.

[0013] Optionally, a power switch and a cool air button are provided on the side wall of the handle, and a circuit board is provided on the inner wall of the handle.

[0014] This utility model provides a rear cover structure for adjusting airflow. When it is necessary to adjust the airflow of a hair dryer, the limiting member is first separated from the fixed cylinder, so that the rotating cylinder can be rotated. This allows the degree to which the baffle strip blocks the opening of the vent, thereby changing the size of the opening. A larger opening increases the airflow into the hair dryer, while a smaller opening reduces the airflow, thus fulfilling the need to adjust the airflow and solving the technical problem in the prior art that hair dryers cannot control the airflow. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of a rear cover for adjusting airflow provided in an embodiment of this utility model; Figure 2This is a schematic diagram of another angle of the airflow regulating rear cover structure provided in this embodiment of the utility model; Figure 3 This is a schematic diagram of the rotating cylinder of a rear cover structure for adjusting air volume provided in an embodiment of this utility model; Figure 4 This is a schematic diagram of the structure of the fixing cylinder of the air volume regulating rear cover structure provided in this embodiment of the utility model; Figure 5 This is a schematic diagram of the structure of a hair dryer provided in an embodiment of the present utility model; Figure 6 This is a schematic diagram of the internal structure of a hair dryer handle provided in an embodiment of this utility model; Figure 7 This is a schematic diagram of the internal structure of a hair dryer body provided in an embodiment of this utility model; In the diagram: 1. Support frame; 2. Rotating cylinder; 21. Wind deflector; 22. Mounting hole; 23. Connecting hole; 3. Fixing cylinder; 31. Ventilation opening; 32. Abutment hole; 33. Stroke groove; 331. Positioning hole; 34. Fixing ring; 341. Air inlet; 4. Limiting component; 41. Flange seat; 42. Threaded rod; 5. Positioning block; 6. Display screen; 7. Transparent cover; 8. Stand; 9. Handle; 91. Power switch; 92. Cold air button; 93. Circuit board; 10. Body; 101. Inner air inlet mesh; 102. Inclined connecting column; 103. Heating inner cylinder; 104. Circuit board; 105. Plasma generator; 106. Motor; 107. Fan; 108. Indicator light; 109. Adjustment button; 110. Connecting piece; 20. Nozzle. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0018] In the description of this utility model, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0020] This utility model provides a rear cover structure for adjusting airflow, including a support frame 1, a rotating cylinder 2, a fixed cylinder 3, and a limiting member 4. The rotating cylinder 2 is sleeved on the outer wall of the fixed cylinder 3 and can rotate relative to the fixed cylinder 3. The support frame 1 is located inside the fixed cylinder 3 and is connected to the fixed cylinder 3. The support frame 1 is connected to the rear end of the hair dryer. One end of the limiting member 4 passes through the rotating cylinder 2 and is connected to the fixed cylinder 3, and the limiting member 4 can restrict the rotation of the rotating cylinder 2 relative to the fixed cylinder 3. Multiple wind-blocking strips 21 are provided on the circumferential sidewall of the rotating cylinder 2, and an opening is provided between adjacent wind-blocking strips 21. Multiple ventilation openings 31 are provided on the circumferential sidewall of the fixed cylinder 3. The number of wind-blocking strips 21 is the same as the number of ventilation openings 31. At the same time, the noise can also be controlled by the wind-blocking strips 21 blocking the ventilation openings 31. The air volume adjustment rear cover structure provided by this utility model allows the limiting member 4 to be separated from the fixed cylinder 3 when the air volume of the hair dryer needs to be adjusted. This allows the rotating cylinder 2 to be rotated, thereby changing the degree to which the wind-blocking strips 21 block the opening of the ventilation openings 31, thus changing the size of the opening. A larger opening increases the air volume entering the hair dryer, while a smaller opening reduces the air volume entering the hair dryer. This achieves the need to adjust the air volume and solves the technical problem in the prior art that hair dryers cannot control the air volume.

[0021] As an optional implementation, the limiting member 4 includes a flange seat 41 and a threaded rod 42. The rotating cylinder 2 has a mounting hole 22, and the fixed cylinder 3 has multiple abutment holes 32. The flange seat 41 is installed in the mounting hole 22. One end of the threaded rod 42 passes through the flange seat 41 and extends into the abutment hole 32. The threaded rod 42 is threadedly connected to the flange seat 41. When the threaded rod 42 is connected to abutment holes 32 at different positions, the degree to which the wind deflector 21 blocks the opening of the ventilation opening 31 varies. When there are three abutment holes 32, the airflow regulating cover structure has three airflow settings: the maximum setting, where the wind deflector 21 does not block the ventilation opening 31; the half-open setting, where the wind deflector 21 blocks half of the ventilation opening 31; and the closed setting, where the wind deflector 21 completely blocks the ventilation opening 31.

[0022] As an optional implementation, a positioning block 5 is also included. The positioning block 5 is used to prevent the rotating cylinder 2 from moving radially. The rotating cylinder 2 is provided with a connecting hole 23, and the fixed cylinder 3 is provided with a stroke groove 33. The stroke groove 33 is provided with a plurality of positioning holes 331. One end of the positioning block 5 is connected to the connecting hole 23, and the other end of the positioning block 5 can be located in the positioning hole 331. The other end of the positioning block 5 is provided with an arc-shaped end face, and the end of the positioning hole 331 is provided with an arc-shaped end face. The arc-shaped end face is to facilitate the positioning block 5 to disengage from the positioning hole 331.

[0023] As an optional implementation, a fixing ring 34 is provided at one end of the fixing cylinder 3. The outer end of the fixing ring 34 contacts the end of the rotating cylinder 2, thereby restricting the radial movement of the rotating cylinder 2. The interior of the fixing ring 34 cooperates with the support frame 1. Multiple air inlets 341 are provided on the fixing ring 34, and air can also enter from the air inlets 341.

[0024] As an optional implementation, it also includes a display screen 6 and a transparent cover 7. The transparent cover 7 is connected to the support frame 1. The display screen 6 is located between the transparent cover 7 and the stand 8 of the hair dryer. The display screen 6 is connected to the circuit board 104 inside the hair dryer through a connecting piece 110.

[0025] This utility model provides a hair dryer, characterized in that it includes a handle 9, a body 10, a nozzle 20, and an airflow adjustment rear cover structure. The nozzle 20 is magnetically connected to the front end of the body 10, the airflow adjustment rear cover structure is connected to the rear end of the body 10, and the side end of the body 10 is rotatably connected to the handle 9. When the hair dryer is in use, the handle 9 is perpendicular to the body 10; when the hair dryer is idle, the handle 9 is parallel to the body 10.

[0026] As an optional implementation, an air inlet mesh 101 is provided at the rear end of the body 10. One end of the air inlet mesh 101 is located inside the air volume adjustment rear cover structure. The air inlet mesh 101 can block some debris from entering the body 10.

[0027] As an optional implementation, the side end of the body 10 is provided with an inclined connecting post 102, and one end of the handle 9 is provided with an inclined end. The inclined connecting post 102 and the inclined end are rotatably connected, and the state of the body 10 and the handle 9 can be changed by rotation.

[0028] As an optional implementation, the main body 10 is equipped with a heating inner cylinder 103, a circuit board 104, a plasma generator 105, a motor 106, and a fan 107. An indicator light 108 and an adjustment button 109 are provided on the side wall of the main body 10. The adjustment button 109 is used to adjust the temperature and speed. A power switch 91 and a cool air button 92 are provided on the side wall of the handle 9, and a circuit board 93 is provided on the inner wall of the handle 9.

[0029] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A rear cover structure for adjusting airflow, characterized in that, It includes a support frame (1), a rotating cylinder (2), a fixed cylinder (3), and a limiting member (4), wherein, The rotating cylinder (2) is sleeved on the outer wall of the fixed cylinder (3) and the rotating cylinder (2) can rotate relative to the fixed cylinder (3). The support frame (1) is located inside the fixed cylinder (3) and is connected to the fixed cylinder (3). The support frame (1) is connected to the rear end of the blower. One end of the limiting member (4) passes through the rotating cylinder (2) and is connected to the fixed cylinder (3). The limiting member (4) can limit the rotation of the rotating cylinder (2) relative to the fixed cylinder (3). The rotating cylinder (2) has multiple wind baffles (21) on its circumferential sidewall, and the fixed cylinder (3) has multiple ventilation openings (31) on its circumferential sidewall.

2. The airflow regulating rear cover structure according to claim 1, characterized in that, The limiting component (4) includes a flange seat (41) and a threaded rod (42). The rotating cylinder (2) is provided with a mounting hole (22), and the fixed cylinder (3) is provided with a plurality of abutment holes (32). The flange seat (41) is installed in the mounting hole (22). One end of the threaded rod (42) passes through the flange seat (41) and can extend into the abutment hole (32). The threaded rod (42) is threadedly connected to the flange seat (41).

3. The airflow regulating rear cover structure according to claim 1, characterized in that, It also includes a positioning block (5), the rotating cylinder (2) is provided with a connecting hole (23), the fixed cylinder (3) is provided with a stroke groove (33), the stroke groove (33) is provided with a plurality of positioning holes (331), one end of the positioning block (5) is connected to the connecting hole (23), and the other end of the positioning block (5) can be located in the positioning hole (331); The other end of the positioning block (5) is provided with an arc-shaped end face, and the end of the positioning hole (331) is provided with an arc-shaped end face.

4. The airflow regulating rear cover structure according to claim 1, characterized in that, A fixing ring (34) is provided at one end of the fixing cylinder (3). The outer end of the fixing ring (34) is in contact with the end of the rotating cylinder (2). The interior of the fixing ring (34) is in cooperation with the support frame (1). The fixed ring (34) is provided with multiple air inlets (341).

5. The airflow regulating rear cover structure according to claim 1, characterized in that, It also includes a display screen (6) and a transparent cover (7), the transparent cover (7) being connected to the support frame (1), the display screen (6) being located between the transparent cover (7) and the stand (8) of the hair dryer, and the display screen (6) being connected to the circuit board (104) inside the hair dryer via a connecting piece (110).

6. A hair dryer, characterized in that, The device includes a handle (9), a body (10), a nozzle (20), and an airflow adjustment rear cover structure as described in any one of claims 1-5. The nozzle (20) is magnetically connected to the front end of the body (10), the airflow adjustment rear cover structure is connected to the rear end of the body (10), and the side end of the body (10) is rotatably connected to the handle (9).

7. The hair dryer according to claim 6, characterized in that, The rear end of the body (10) is provided with an air inlet mesh (101), one end of which is located inside the air volume adjustment rear cover structure.

8. The hair dryer according to claim 6, characterized in that, An inclined connecting post (102) is provided on the side of the body (10), and an inclined end is provided on one end of the handle (9). The inclined connecting post (102) is rotatably connected to the inclined end.

9. The hair dryer according to claim 6, characterized in that, The body (10) is equipped with a heating inner cylinder (103), a circuit board (104), a plasma generator (105), a motor (106) and a fan (107). The side wall of the body (10) is equipped with an indicator light (108) and an adjustment button (109).

10. The hair dryer according to claim 6, characterized in that, A power switch (91) and a cold air button (92) are provided on the side wall of the handle (9), and a circuit board (93) is provided on the inner wall of the handle (9).

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